1. The utility model provides a concrete pond is optic fibre laying device for leakage detection which characterized in that: the optical fiber reel fixing device is characterized by comprising a base (1), wherein idler wheels (11) are arranged at the bottom of the base (1), a push-pull handle (12) is arranged at one end of the base (1), two supporting seats (13) are arranged on the base (1), a reel releasing shaft (14) used for installing an optical fiber reel (7) is arranged between the two supporting seats (13) in a rotating mode, a linkage assembly (2) is arranged between the idler wheels (11) and the reel releasing shaft (14), and the linkage assembly (2) is used for driving the reel releasing shaft (14) and the idler wheels (11) to rotate synchronously.

2. The optical fiber laying device for the concrete pool leakage detection according to claim 1, wherein: linkage subassembly (2) include first sprocket (21), second sprocket (22) and linkage chain (23), the one end of unreeling axle (14) extends to the outside of supporting seat (13), first sprocket (21) coaxial line is connected and is being located the outer one end of supporting seat (13) at unreeling axle (14), is located be provided with universal driving shaft (111) on gyro wheel (11) of first sprocket (21) below, second sprocket (22) coaxial line is connected on universal driving shaft (111), linkage chain (23) set up between first sprocket (21) and second sprocket (22).

3. The optical fiber laying device for the concrete pool leakage detection according to claim 1, wherein: the bottom of base (1) is provided with stop gear (3) that are used for injecing base (1) moving direction, stop gear (3) include two limiting plates (31), two limiting plate (31) all slide along the width direction of base (1) and set up on base (1), two be provided with between limiting plate (31) and be used for driving two limiting plate (31) to be close to each other or adjustment assembly (32) of the direction removal of keeping away from.

4. The optical fiber laying device for the concrete pool leakage detection according to claim 3, wherein: adjusting part (32) are including adjusting sleeve (321), screw hole (151) opposite to the spiral direction is seted up at the both ends of adjusting sleeve (321), two adjusting screw (322) are worn to be equipped with by equal screw thread in screw hole (151), adjusting screw (322) are kept away from the one end rotation connection of adjusting sleeve (321) in limiting plate (31).

5. The optical fiber laying device for the concrete pool leakage detection according to claim 1, wherein: the optical fiber cable winding and unwinding device is characterized in that a wire mechanism (4) is arranged on the end face, close to one end of the unwinding shaft (14), of the base (1), the wire mechanism (4) comprises a wire rod (41) and a wire wheel (42), the wire rod (41) is arranged on the base (1), the wire wheel (42) is rotatably arranged at one end, far away from the base (1), of the wire rod (41), and a wire groove (421) for optical fibers to be erected is formed in the wire wheel (42).

6. The optical fiber laying device for the concrete pool leakage detection according to claim 5, wherein: the wire guide device is characterized in that a sliding groove (15) is formed in the end face of the base (1), a sliding block (411) is arranged on the wire guide rod (41), the sliding block (411) is arranged in the sliding groove (15) in a sliding mode, a positioning bolt (412) is arranged on the sliding block (411), and a plurality of threaded holes (151) for the positioning bolt (412) to be inserted are formed in the bottom wall of the sliding groove (15) along the length direction of the threaded holes.

7. The optical fiber laying device for the concrete pool leakage detection according to claim 5, wherein: the base (1) is provided with a cutting mechanism (5) for cutting off the optical fiber, and the cutting mechanism (5) is positioned between the unreeling shaft (14) and the wire guiding mechanism (4).

8. The optical fiber laying device for detecting the leakage of the concrete pool according to claim 7, wherein: the cutting mechanism (5) comprises a cutting seat (51), a through hole (511) for the optical fiber to pass through is formed in the cutting seat (51), a cutting groove (512) is formed in one side, located on the cutting seat (51), of the through hole (511) along the radial direction of the through hole (511), a cutting knife (52) is arranged on the cutting seat (51) in a sliding mode along the depth direction of the cutting groove (512), and a driving assembly (6) used for driving the cutting knife (52) to move towards the inside of the through hole (511) is arranged on the base (1).

9. The optical fiber laying device for detecting the leakage of the concrete pool according to claim 8, wherein: the driving assembly (6) comprises a driving rope (61) and a plurality of guide seats (62), the guide seats (62) are arranged on the base (1), one end of the driving rope (61) is fixedly connected to the cutting knife (52), the other end of the driving rope penetrates through each guide seat (62) in sequence and extends to the outside of the base (1), a positioning seat (121) is arranged on the push-pull handle (12), and one end, located outside the base (1), of the driving rope (61) is fixedly arranged on the positioning seat (121).

10. The laying method of the optical fiber laying device for the concrete pool leakage detection according to any one of claims 1 to 9, characterized by comprising the following steps:

s1, excavating a drainage blind ditch at the lower part of the parting position of the bottom plate of the concrete pool, erecting a template, pouring a concrete cushion layer, polishing the concrete cushion layer smoothly, paving a waterproof layer, and then pouring sand-free concrete above the waterproof layer;

s2, mounting the optical fiber disc (7) on the unreeling shaft (14), and then placing the base (1) right above the drainage blind ditch to enable the length direction of the base (1) to be consistent with the length direction of the drainage blind ditch;

s3, the base (1) is pushed or pulled along the length direction of the drainage blind ditch by holding the push-pull handle (12), and in the moving process of the base (1), the roller (11) drives the unreeling shaft (14) to rotate through the linkage assembly (2), so that the unreeling effect of the optical fiber wound on the unreeling shaft (14) is realized, and the unreeled optical fiber can be laid on the sand-free concrete in the drainage blind ditch;

s4, when the base (1) is pushed to the tail end of the drainage blind ditch, the optical fiber is completely paved in one drainage blind ditch, the optical fiber is cut off, then the base (1) is moved to the upper part of the other drainage blind ditch, and the optical fiber is paved on the next drainage blind ditch.

Background

The leakage problem is always an important factor influencing the safety and the service life of a concrete pool structure, and monitoring the leakage of the pool is important work for ensuring the normal and safe operation of the pool. The pool leakage monitoring system takes optical fibers as media and optical signals as carriers, can quickly find abnormal temperature points and accurately judge whether leakage occurs.

The construction process mainly comprises the steps of arranging a drainage blind ditch, a erecting template and a poured concrete cushion layer on the lower portion of a parting joint of a pool bottom plate, paving a waterproof layer after polishing the cushion layer to be smooth, then installing a PVC (polyvinyl chloride) drainage pipe at the bottom of the blind ditch, sectionally laying longitudinal optical fibers above a PVC pipe at a certain distance from a longitudinal joint of the bottom plate, then pouring sand-free concrete, sectionally laying transverse optical fibers on the surface of the sand-free concrete and at the position of a transverse joint of the bottom plate, then installing a bottom plate reinforcing steel bar, and pouring bottom plate concrete. At present, when optical fibers are laid, an optical fiber disc is usually held by a worker, and the optical fiber disc is unreeled while moving along the length direction of a drainage blind ditch.

Aiming at the related technologies, the inventor thinks that the defects of large labor intensity and poor unreeling effect exist in the optical fiber unreeling process.

Disclosure of Invention

In order to reduce unreel the artifical intensity of labour of in-process to the optic fibre, improve simultaneously and unreel the effect, this application provides an optic fibre laying device for concrete pond seepage detection.

First aspect, the application provides a concrete pond is optic fibre laying device for leakage detection adopts following technical scheme:

the utility model provides a concrete pond is optic fibre laying device for seepage detection, includes the base, the bottom of base is provided with the gyro wheel, the one end of base is provided with the push-and-pull handle, be provided with two supporting seats on the base, two rotate between the supporting seat and be provided with the axle of unreeling that is used for installing the optical fiber dish, one of them the gyro wheel is provided with the linkage subassembly with unreeling between the axle, the linkage subassembly is used for driving the axle of unreeling and the gyro wheel synchronous rotation.

By adopting the technical scheme, when optical fibers need to be laid, the base is placed right above the drainage blind ditch, the optical fibers are unreeled for a distance from the optical fiber disc, then the optical fiber disc is installed on the unreeling shaft on the base, a worker holds the push-pull handle to push the base, the rollers rotate in the moving process of the base, and the unreeling shaft is driven to synchronously rotate through the linkage assembly in the rotating process of the rollers, so that the optical fibers are unreeled, the unreeling process is simple and convenient, and the labor intensity of workers is reduced; meanwhile, the unwinding shaft and the roller rotate synchronously, so that the optical fiber is more uniformly unwound.

Optionally, the linkage subassembly includes first sprocket, second sprocket and linkage chain, the one end of unreeling the axle extends to the outside of supporting seat, first sprocket coaxial line is connected in unreeling the axle and is located the outer one end of supporting seat, is located be provided with the universal driving shaft on the gyro wheel of first sprocket below, second sprocket coaxial line is connected on the universal driving shaft, the linkage chain sets up between first sprocket and second sprocket.

Through adopting above-mentioned technical scheme, the gyro wheel is at the pivoted in-process, and the universal driving shaft that sets up on the gyro wheel drives the second sprocket and takes place to rotate, and the second sprocket drives first sprocket through the linkage chain and takes place to rotate to make the axle of unreeling take place to rotate, unreel the axle pivoted in-process and install the optic fibre dish on the axle of unreeling and can unreel optic fibre promptly, thereby make the base drive optic fibre at the in-process of motion and unreel, in order to make things convenient for the process of laying of optic fibre.

Optionally, the bottom of base is provided with the stop gear who is used for injecing base moving direction, stop gear includes two limiting plates, two the limiting plate all slides along the width direction of base and sets up on the base, two be provided with between the limiting plate and be used for driving two limiting plates to the direction removal that is close to each other or keeps away from.

Through adopting above-mentioned technical scheme, through setting up stop gear on the base, place the drainage french drain with the base on the back, adjust two limiting plates position on the base through adjusting part, make two limiting plates laminate with two lateral walls of drainage french drain respectively mutually, carry out the in-process that promotes to the base along the length direction of french drain, under limiting displacement between limiting plate and drainage french drain, the difficult emergence skew in position of base to the accuracy of optic fibre position of laying has been improved.

Optionally, the adjusting part includes adjusting sleeve, the screw hole that revolves to opposite is seted up at adjusting sleeve's both ends, two adjusting screw is worn to be equipped with by the equal screw thread in the screw hole, adjusting screw keeps away from adjusting sleeve's one end and rotates the connection in the limiting plate.

Through adopting above-mentioned technical scheme, through rotating adjusting sleeve, make two adjusting screw remove to the direction that is close to each other or keeps away from each other to change the position of two limiting plates, make two limiting plates can laminate mutually with the lateral wall of the drainage french drain of different widths.

Optionally, a wire mechanism is arranged on the end face of the base, which is close to one end of the unwinding shaft, and comprises a wire rod and a wire wheel, the wire rod is arranged on the base, the wire wheel is rotatably arranged at one end, which is far away from the base, of the wire rod, and a wire groove for laying optical fibers is formed in the wire wheel.

Through adopting above-mentioned technical scheme, through set up the wire mechanism of constituteing by guide wire pole and wire wheel on the base, take optic fibre and establish in the wire guide who offers on the wire wheel, can play certain guide effect to the position of optic fibre promptly to improve the accuracy that the position was laid to optic fibre.

Optionally, a sliding groove is formed in the end face of the base, a sliding block is arranged on the lead rod, the sliding block is arranged in the sliding groove in a sliding mode, a positioning bolt is arranged on the sliding block, and a plurality of threaded holes for the positioning bolt to insert are distributed in the bottom wall of the sliding groove along the length direction of the sliding groove.

Through adopting above-mentioned technical scheme, through setting up the slider on the wire rod, with slider sliding connection in the spout of seting up on the base, remove the slider along the length direction of spout, then fix the position of slider through positioning bolt to fix the different positions on the base with the wire rod, thereby conveniently carry out the accuracy to the position of laying of optic fibre and adjust.

Optionally, a cutting mechanism for cutting off the optical fiber is arranged on the base, and the cutting mechanism is located between the unreeling shaft and the wire guiding mechanism.

Through adopting above-mentioned technical scheme, through setting up shutdown mechanism on the base, after the completion is laid to the optic fibre in a drainage french drain, can cut off optic fibre through shutdown mechanism promptly to conveniently carry out optic fibre to next drainage french drain immediately and lay.

Optionally, the cutting mechanism includes a cutting seat, a through hole for passing the optical fiber is provided on the cutting seat, a cutting groove is provided on one side of the cutting seat and located on the through hole along a radial direction of the through hole, a cutting knife is slidably provided on the cutting seat along a depth direction of the cutting groove, and a driving assembly for driving the cutting knife to move in the through hole is provided on the base.

Through adopting above-mentioned technical scheme, drive the cutting knife through drive assembly and remove to the through-hole along the depth direction of cutting cut groove in, the cutting edge of cutting knife can cut off optic fibre after contacting optic fibre to the cutting process of optic fibre has been made things convenient for.

Optionally, the driving assembly includes a driving rope and a plurality of guide seats, the guide seats are all arranged on the base, one end of the driving rope is fixedly connected to the cutting knife, the other end of the driving rope sequentially penetrates through each guide seat and extends to the outside of the base, the push-pull handle is provided with a positioning seat, and one end of the driving rope, which is located outside the base, is fixedly arranged on the positioning seat.

Through adopting above-mentioned technical scheme, under the condition that does not receive exogenic action, the cutting knife is located the outside of through-hole, does not contact with optic fibre, can not influence the laying process of optic fibre, when optic fibre lay in a drainage french drain and finish when finishing needing to cut off, the staff is through pulling the driving rope, and the driving rope can drive the cutting knife and remove in to the through-hole promptly to the convenience is cut off optic fibre.

In a second aspect, the present application provides a method for laying an optical fiber laying device for concrete pool leakage detection, which adopts the following technical scheme

A laying method of an optical fiber for concrete pool leakage detection comprises the following steps:

s1, excavating a drainage blind ditch at the lower part of the parting position of the bottom plate of the concrete pool, erecting a template, pouring a concrete cushion layer, polishing the concrete cushion layer smoothly, paving a waterproof layer, and then pouring sand-free concrete above the waterproof layer;

s2, mounting the optical fiber disc on the unwinding shaft, and then placing the base right above the blind drain to enable the length direction of the base to be consistent with that of the blind drain;

s3, the base is pushed or pulled along the length direction of the drainage blind ditch by holding the push-pull handle by hand, and in the moving process of the base, the roller drives the unreeling shaft to rotate through the linkage assembly, so that the unreeling effect of the optical fiber wound on the unreeling shaft is realized, and the unreeled optical fiber can be laid on the sand-free concrete in the drainage blind ditch;

s4, when the base is pushed to the tail end of the drainage blind ditch, the optical fiber is completely paved in one drainage blind ditch, the optical fiber is cut off, then the base is moved to the upper part of the other drainage blind ditch, and the optical fiber is paved on the next drainage blind ditch.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the optical fiber unwinding device, the linkage assembly consisting of the first chain wheel, the second chain wheel and the linkage chain is arranged between the unwinding shaft and the roller wheel, so that the roller wheel drives the unwinding shaft to rotate synchronously in the rotating process, and the optical fiber is automatically unwound in the process that a worker pushes the base;

2. according to the drainage blind ditch, the limiting mechanism is arranged on the base, and after the base is placed on the drainage blind ditch, the positions of the two limiting plates on the base are adjusted through the adjusting assembly, so that the two limiting plates are respectively attached to the two side walls of the drainage blind ditch, the moving direction of the base is limited, and the position of the base is not easy to deviate in the process of moving along the length direction of the blind ditch;

3. this application is through setting up shutdown mechanism on the base, and after the completion was laid to the optic fibre in a drainage french drain, can cut off optic fibre through shutdown mechanism promptly to conveniently carry out optic fibre to next drainage french drain immediately and lay.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a schematic view of the installation structure of the support base of the present application.

FIG. 3 is a schematic structural view of the linkage assembly of the present application.

Fig. 4 is a schematic view of the installation structure of the limiting mechanism on the base.

FIG. 5 is a schematic view of the installation structure of the cutting mechanism and the driving assembly on the base.

Fig. 6 is a schematic structural view of the wire guide mechanism of the present application.

Fig. 7 is a schematic structural view of the cutting mechanism of the present application.

Description of reference numerals: 1. a base; 11. a roller; 111. a linkage shaft; 12. a push-pull handle; 121. positioning seats; 13. a supporting seat; 131. a T-shaped block; 132. positioning pins; 14. unwinding the reel; 15. a chute; 151. a threaded hole; 16. a limiting groove; 17. a T-shaped slot; 2. a linkage assembly; 21. a first sprocket; 22. a second sprocket; 23. a linkage chain; 3. a limiting mechanism; 31. a limiting plate; 311. a limiting block; 32. an adjustment assembly; 321. an adjustment sleeve; 3211. a gripping sleeve; 322. adjusting the screw rod; 4. a wire guide mechanism; 41. a wire guide rod; 411. a slider; 412. positioning the bolt; 42. a wire guide wheel; 421. a wire guide groove; 5. a cutting mechanism; 51. a cutting seat; 511. a through hole; 512. cutting the groove; 52. a cutting knife; 521. a driving plate; 53. a return spring; 6. a drive assembly; 61. a drive rope; 62. a guide seat; 7. an optical fiber reel.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses optical fiber laying device for concrete pool seepage detection, refer to fig. 1, including base 1, gyro wheel 11 is all installed in base 1's bottom four corners, the one end welding of base 1 has push-and-pull handle 12, so as to promote or stimulate base 1, be equipped with two supporting seats 13 on the base 1, it is connected with the axle 14 of unreeling that is used for installing optical fiber dish 7 to rotate between two supporting seats 13, unreel and install linkage subassembly 2 between axle 14 and one of them gyro wheel 11, realize unreeling axle 14 and gyro wheel 11's synchronous rotation through linkage subassembly 2. One end of the base 1 close to the unreeling shaft 14 is provided with a wire mechanism 4, and the optical fiber is erected on the wire mechanism 4, so that the unreeling of the optical fiber can be guided; the bottom of the base 1 is provided with a limiting mechanism 3 so as to limit the moving direction of the base 1, thereby avoiding the position of the base 1 from shifting in the moving process to a certain extent; and a cutting mechanism 5 is also arranged on the base 1 and between the wire guiding mechanism 4 and the unreeling shaft 14, when the optical fiber is laid in one drainage blind ditch, the optical fiber is cut off, and then the base 1 is moved to the position above the other drainage blind ditch, so that the optical fiber can be laid in the next blind ditch.

Referring to fig. 2, the supporting seat 13 close to one side of the linkage assembly 2 is welded on the base 1, the bottom of the supporting seat 13 far away from one side of the linkage assembly 2 is welded with a T-shaped block 131, the base 1 is provided with a T-shaped groove 17 for the T-shaped block 131 to slide, the T-shaped block 131 is provided with a positioning pin 132 in a penetrating manner, and the bottom wall of the T-shaped groove 17 is provided with a pin hole for the positioning pin 132 to insert. When needs install optical fiber disc 7, extract locating pin 132 from the pinhole, then will keep away from the supporting seat 13 of linkage subassembly 2 one side along the length direction of T-slot 17 outside removing to base 1, will put the reel cover and establish and put spool 14 back, install supporting seat 13 on base 1 and along the length direction sliding support seat 13 of T-slot 17, insert locating pin 132 again and establish behind the pinhole, can make supporting seat 13 installation stable promptly, realize the supporting role to putting spool 14.

Referring to fig. 1 and 3, the linkage assembly 2 is composed of a first chain wheel 21, a second chain wheel 22 and a linkage chain 23, one end of the unwinding shaft 14 extends to the outside of the supporting seat 13, the first chain wheel 21 is coaxially welded at one end of the unwinding shaft 14 located outside the supporting seat 13, a linkage shaft 111 is welded at the center position of the roller 11 located below the first chain wheel 21, the second chain wheel 22 is coaxially welded on the linkage shaft 111, and the linkage chain 23 is installed between the first chain wheel 21 and the second chain wheel 22 and is meshed with the first chain wheel 21 and the second chain wheel 22. The idler wheel 11 drives the linkage shaft 111 to rotate when rolling, the second chain wheel 22 welded on the linkage shaft 111 rotates synchronously with the linkage shaft 111, the second chain wheel 22 drives the first chain wheel 21 to rotate through the linkage chain 23 in the rotating process, so that the unwinding shaft 14 rotates, the optical fiber disc 7 can unwind the optical fiber in the rotating process of the unwinding shaft 14, and the laying process of the optical fiber is facilitated.

Referring to fig. 4, limiting mechanism 3 includes two limiting plates 31 and is used for driving two limiting plates 31 to the adjusting part 32 that is close to each other or the direction of keeping away from removed, has seted up two spacing grooves 16 along self width direction on base 1's the bottom surface, all has welded spacing groove 16 on two limiting plates 31, and stopper 311 sliding connection is in spacing groove 16. The adjusting assembly 32 comprises an adjusting sleeve 321 and two adjusting screws 322 with opposite turning directions, threaded holes 151 with opposite turning directions are formed in two ends of the adjusting sleeve 321, the two adjusting screws 322 are respectively in threaded holes 151 in two ends of the adjusting sleeve 321, and one ends, far away from the adjusting sleeve 321, of the two adjusting screws 322 are respectively rotatably connected in the two limiting plates 31. In order to facilitate rotation of the adjusting sleeve 321, a holding sleeve 3211 is sleeved outside the adjusting sleeve 321, and anti-slip threads are distributed on the outer portion of the holding sleeve 3211 to facilitate holding of the adjusting sleeve 321 by a worker.

After placing the drainage french drain with base 1 on, through rotating adjusting sleeve 321, make two adjusting screw 322 remove to the direction that is close to each other or keeps away from each other, thereby change two limiting plate 31's position, make two limiting plate 31 laminate mutually with the both sides wall of drainage french drain respectively, carry out the in-process that promotes to base 1 at the length direction along the french drain, under limiting displacement between limiting plate 31 and drainage french drain, the difficult emergence skew in position of base 1, in order to improve the accuracy that the position was laid to optic fibre.

Referring to fig. 5 and 6, the wire guiding mechanism 4 includes a wire guiding rod 41 and a wire guiding wheel 42, a sliding block 411 is welded at an end of the wire guiding rod 41, a sliding slot 15 for the sliding block 411 to slide is formed in an end surface of the base 1, positioning bolts 412 are inserted into two sides of the sliding block 411, and a plurality of threaded holes 151 are distributed in a bottom wall of the sliding slot 15 along a length direction of the sliding slot. The wire guide wheel 42 is rotatably installed at one end of the wire guide rod 41 far away from the base 1, and a wire guide groove 421 for setting up an optical fiber is opened on the wire guide wheel 42. The length direction of following spout 15 slides the guide bar, then inserts positioning bolt 412 and establishes the screw hole 151 of corresponding position, fixes slider 411's position, fixes conductor bar 41 at the assigned position on base 1, makes the conductor bar 41 aim at the position of laying of treating of optic fibre, then sets up optic fibre in the wire casing 421 of seting up on wire wheel 42, can play certain limiting effect to the position of laying of optic fibre promptly to improve the accuracy of optic fibre laying position.

Referring to fig. 5 and 7, the cutting mechanism 5 includes a cutting seat 51, the cutting seat 51 is welded on the base 1, a through hole 511 for passing an optical fiber is formed in the cutting seat 51 in a penetrating manner, a cutting groove 512 is formed in one side of the cutting seat 51, which is located in the through hole 511, along a radial direction of the through hole 511, a cutting knife 52 is slidably mounted on the cutting seat 51 along a depth direction of the cutting groove 512, a driving plate 521 is welded at one end of the cutting knife 52, which is far away from the cutting groove 512, and a return spring 53 is connected between the driving plate 521 and the cutting seat 51. The reset spring 53 in this embodiment is a compression spring, and under the condition of not being affected by external force, the cutter blade 52 is located outside the through hole 511 and does not contact with the optical fiber in the through hole 511, so that the laying process of the optical fiber is not affected, and when the optical fiber is laid in a drainage blind ditch and needs to be cut off, the driving piece 521 is pulled towards the direction close to the through hole 511, so that the cutter blade 52 is inserted into the through hole 511, and the optical fiber is cut off. After the optical fiber is cut, the driving piece 521 is released, and the cutter blade 52 moves to the outside of the through hole 511 again by the elastic force of the return spring 53.

Referring to fig. 1 and 5, in order to facilitate the operator to drive the cutting knife 52, a driving assembly 6 is further installed on the base 1, the driving assembly 6 includes a driving rope 61 and a plurality of guide seats 62, the guide seats 62 are all welded on the base 1, one end of the driving rope 61 is fixedly connected to the driving sheet 521 of the cutting knife 52, the other end of the driving rope sequentially penetrates through each guide seat 62 and extends to the outside of the base 1, a positioning seat 121 is welded on the push-pull handle 12, and one end of the driving rope 61, which is located outside the base 1, is fixedly connected to the positioning seat 121. A plurality of guide holders 62 play the switching-over effect to driving rope 61 in the different positions department on base 1, and when making the staff pulling driving rope 61, driving rope 61 can drive the driving plate 521 and remove, drives cutting knife 52 to the through-hole 511 in, cuts the optic fibre. When the optical fiber is laid in one drainage blind ditch and needs to be cut off, a worker can drive the cutter 52 to move in the through hole 511 by pulling the driving rope 61, so that the cutting process of the optical fiber cutting is facilitated, and the optical fiber laying can be immediately carried out on the next drainage blind ditch after the optical fiber laying in one drainage blind ditch is finished.

The embodiment of the application also discloses a laying method of the optical fiber for the leakage detection of the concrete pool, which comprises the following steps:

s1, excavating a drainage blind ditch at the lower part of the parting position of the bottom plate of the concrete pool, erecting a template, pouring a concrete cushion layer, polishing the concrete cushion layer smoothly, paving a waterproof layer, and then pouring sand-free concrete above the waterproof layer;

s2, mounting the optical fiber disc 7 on the unreeling shaft 14, and then placing the base 1 right above the blind drain to enable the length direction of the base 1 to be consistent with that of the blind drain;

s3, the base 1 is pushed or pulled along the length direction of the drainage blind ditch by holding the push-pull handle 12 by hand, in the moving process of the base 1, the roller 11 drives the unreeling shaft 14 to rotate through the linkage assembly 2, the unreeling effect of the optical fiber wound on the unreeling shaft 14 is realized, and the unreeled optical fiber can be laid on the sand-free concrete in the drainage blind ditch;

s4, when the base 1 is pushed to the tail end of the drainage blind ditch, the optical fiber is completely paved in one drainage blind ditch, the optical fiber is cut off, then the base 1 is moved to the upper part of the other drainage blind ditch, and the optical fiber is paved on the next drainage blind ditch.

The implementation principle of the optical fiber laying device for the concrete pool leakage detection in the embodiment of the application is as follows: when optical fibers need to be laid, the base 1 is placed right above the drainage blind ditch, the optical fibers are unreeled for a certain distance from the optical fiber disc 7, then the optical fiber disc 7 is installed on the unreeling shaft 14 on the base 1, a worker holds the push-pull handle 12 to push the base 1, the rollers 11 of the base 1 rotate in the moving process, and the unreeling shaft 14 is driven to synchronously rotate through the linkage assembly 2 in the rotating process of the rollers 11, so that the optical fibers are unreeled, the unreeling process is simple and convenient, and the labor intensity of workers is reduced; meanwhile, the unwinding shaft 14 and the roller 11 rotate synchronously, so that the optical fiber is more uniformly unwound.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.