1. The utility model provides a downthehole reinforcement corrector of cylinder formula basis which characterized in that: the pulley positioning fixture can lock two ends of the pulley, and a main rib penetrates through the pulley and the main rib fixture and then is locked by the main rib fixture.

2. The cylindrical foundation hole rebar tying corrector of claim 1, wherein: the cross section shapes of the inner ring guide rail and the outer ring guide rail are both U-shaped, and the width and the depth of the notches of the inner ring guide rail and the outer ring guide rail are the same.

3. The cylindrical foundation hole rebar tying corrector of claim 2, wherein: the pulley comprises a frame and rollers connected with the bottom surfaces of two ends of the frame, and the positions of the two rollers respectively correspond to the notches of the inner ring guide rail and the outer ring guide rail.

4. The cylindrical foundation hole rebar tying corrector of claim 3, wherein: the frame is a U-shaped body, and a rectangular groove along the length direction of the U-shaped body is formed in the bottom surface of the U-shaped body.

5. The cylindrical foundation hole rebar tying corrector of claim 4, wherein: the main muscle fixture includes rectangle bottom plate, external screw thread pipe and lock nut, and the internal diameter of external screw thread pipe is greater than the main muscle external diameter, and many axial grooves have been seted up on upper portion, and lock nut connects in the fluting section of external screw thread pipe, and the width of rectangle bottom plate is greater than rectangle groove width on the frame, lock nut's lower extreme is fixed in the central point of rectangle bottom plate and puts the department.

6. The cylindrical foundation hole rebar tying corrector of claim 3, wherein: the number of the pulley positioning clamps is twice that of the pulleys, each pulley positioning clamp comprises a U-shaped body and a screw assembly, the screw assembly is perpendicular to a side arm of the U-shaped body, and a screw of the screw assembly can be screwed into a notch of the U-shaped body.

7. The cylindrical foundation hole rebar tying corrector of claim 6, wherein: the width of the notch of the U-shaped body is larger than the sum of the height of the inner ring guide rail and the thickness of the bottom plate of the pulley.

8. The cylindrical foundation hole rebar tying corrector of claim 6, wherein: the screw rod component comprises a screw rod and a matched nut, the nut is welded at one side arm of the U-shaped body, and the outer end of the screw rod is in threaded connection with a force applying rod.

9. A method for binding reinforcing steel bars in a cylindrical foundation hole at the pithead of a foundation pit by using the corrector of claim 1, comprising the following steps of:

(1) excavating a foundation pit, leveling a pithead, concentrically placing a cylindrical steel die at the pithead, and adjusting the levelness of the steel die;

(2) assembling a jack outside the steel die, and supporting and jacking the corrector through the jack;

(3) assembling a corrector, adjusting the levelness of the integral part of the inner ring guide rail and the outer ring guide rail, and arranging the pulleys with the same number on the inner ring track and the outer ring track according to the number of the main ribs;

(4) each main rib penetrates through each main rib fixture and the pulley frame from top to bottom, and after the radial position is adjusted, a locking nut of each main rib fixture is screwed;

(5) adjusting the upper end surfaces of the main ribs to be positioned on the same designated horizontal plane, so that the main ribs are suspended on the frame of the scooter through self weight;

(6) moving the main rib with the fixed radial position to a specified position along with the pulley, and locking the pulley on the inner ring track and the outer ring track through a pulley positioning fixture;

(7) the steel reinforcement cage ligature is down carried out from last at the pithead, and the single ligature highly is half of jack stroke, and the back is accomplished in the single ligature, places shaped steel at the steel mould top surface, unloads the jack power and breaks away from the corrector back by the complete bearing steel reinforcement cage of shaped steel, and the jack stroke of readjustment upwards and bearing corrector bearing atress again begins next ligature operation, so circulation, finishes at the pithead ligature until the whole height of steel reinforcement cage.

Background

At present, because the artificially formed cylindrical foundation has the characteristics of pore-forming deviation, large aperture, deep foundation and the like, the method that the foundation is dug greatly cannot be used for binding when the steel bars are bound and installed is determined, and the phenomena of large height difference error, insufficient steel bar protection distance and the like of the steel bar cage main bars bound by the steel bars in the pit hole due to the integral flexible deformation of the steel bar cage caused by the self weight of the steel bars and the uneven bottom of the pit are easily generated. Cause the project department to examine specially and manage the spot check-in-process and do over again repeatedly, the probability that there is flexible deformation in the longer pot hole of steel reinforcement cage body is high, and the cage body is whole because of having ligatured after the ligature is accomplished in the pot hole, and the atress is unbalanced can lead to the whole distortion of S shaped steel reinforcement cage to lead to the acceptance to be unqualified.

The binding technology that is closest at present is to put the main muscle under and accomplishes the back, carries out single at the adit and hangs the ligature, and the whole completion steel reinforcement cage ligature of personnel in the hole, and this technique can guarantee that the whole main muscle difference in height of steel reinforcement cage is in error allowed range, nevertheless can not guarantee steel reinforcement cage main muscle interval, protective layer, the whole straightness technology that hangs down of steel reinforcement cage, so prior art still need optimize.

Disclosure of Invention

The invention aims to provide a universal cylindrical foundation hole steel bar binding corrector capable of ensuring the binding quality of a steel bar cage and the binding efficiency and the personnel safety and an application method thereof.

The invention provides a cylindrical foundation hole reinforcing steel bar binding corrector, which comprises an inner ring guide rail, an outer ring guide rail, a pulley, a main rib fixture and a pulley positioning fixture, wherein the inner ring guide rail and the outer ring guide rail are concentrically arranged and are connected into a whole through a radial connecting piece, the pulley can slide along the inner ring guide rail and the outer ring guide rail simultaneously, the main rib fixture can be connected onto the pulley in a radial moving manner, the pulley positioning fixture can lock two ends of the pulley, and a main rib penetrates through the pulley and the main rib fixture and then is locked by the main rib fixture.

In an embodiment of the above technical solution, the cross-sectional shapes of the inner ring guide rail and the outer ring guide rail are both U-shaped, and the widths and depths of the notches of the inner ring guide rail and the outer ring guide rail are the same.

In an embodiment of the above technical solution, the pulley includes a frame and rollers connected to bottom surfaces of two ends of the frame, and positions of the two rollers respectively correspond to notches of the inner ring guide rail and the outer ring guide rail.

In one embodiment of the above technical solution, the frame is a U-shaped body, and a rectangular groove is formed in a bottom surface of the U-shaped body along a length direction thereof.

In an embodiment of the above technical scheme, the main rib fixture comprises a rectangular bottom plate, an external threaded pipe and a locking nut, wherein the internal diameter of the external threaded pipe is greater than the external diameter of the main rib, a plurality of axial grooves are formed in the upper part of the external threaded pipe, the locking nut is connected to the grooved section of the external threaded pipe, the width of the rectangular bottom plate is greater than the width of the rectangular groove in the frame, and the lower end of the locking nut is fixed at the central position of the rectangular bottom plate.

In one embodiment of the above technical solution, the number of the pulley positioning fixtures is twice that of the pulleys, each pulley positioning fixture includes a U-shaped body and a screw assembly, the screw assembly is arranged perpendicular to a side arm of the U-shaped body, and a screw of the screw assembly can be screwed into a notch of the U-shaped body.

In an embodiment of the above technical solution, a width of a notch of the U-shaped body is greater than a sum of a height of the inner ring guide rail and a thickness of a bottom plate of the tackle.

In an embodiment of the above technical scheme, the screw assembly includes the screw and a nut matched with the screw, the nut is welded at a side arm of the U-shaped body, and an outer end of the screw is in threaded connection with the reinforcing rod.

The invention provides a method for binding a reinforcing steel bar in a cylindrical foundation hole at a pit opening of a foundation pit by using a corrector, which comprises the following steps:

(1) excavating a foundation pit, leveling a pithead, concentrically placing a cylindrical steel die at the pithead, and adjusting the levelness of the steel die;

(2) assembling a jack outside the steel die, and supporting and jacking the corrector through the jack;

(3) assembling a corrector, adjusting the levelness of the integral part of the inner ring guide rail and the outer ring guide rail, and arranging the pulleys with the same number on the inner ring track and the outer ring track according to the number of the main ribs;

(4) each main rib penetrates through each main rib fixture and the pulley frame from top to bottom, and after the radial position is adjusted, a locking nut of each main rib fixture is screwed;

(5) adjusting the upper end surfaces of the main ribs to be positioned on the same designated horizontal plane, so that the main ribs are suspended on the frame of the scooter through self weight;

(6) moving the main rib with the fixed radial position to a specified position along with the pulley, and locking the pulley on the inner ring track and the outer ring track through a pulley positioning fixture;

(7) the steel reinforcement cage ligature is down carried out from last at the pithead, and the single ligature highly is half of jack stroke, and the back is accomplished in the single ligature, places shaped steel at the steel mould top surface, unloads the jack power and breaks away from the corrector back by the complete bearing steel reinforcement cage of shaped steel, and the jack stroke of readjustment upwards and bearing corrector bearing atress again begins next ligature operation, so circulation, finishes at the pithead ligature until the whole height of steel reinforcement cage.

The corrector is provided with the inner ring guide rail and the outer ring guide rail which are concentrically arranged, so that the inner ring guide rail and the outer ring guide rail are used for guiding the pulley to travel in the circumferential direction. The main muscle fixture blocks the radial position of adjustable main muscle of edge coaster radial movement behind the main muscle, and the main muscle is adjusted and is gone back accessible dead weight after the radial position and is hung on the coaster, and the adjustment interval is walking along with the circumference of coaster. Thereby the circumferential and radial positions of the main ribs are adjusted in place. Obviously, the adjustment has universality, can meet the positioning of different design sizes of the main reinforcement arrangement, and can ensure the verticality of the reinforcement cage. During the reinforcement cage ligature, adjust the stroke through this corrector cooperation jack segmentation, but the whole ligatures of steel reinforcement cage can be realized at the foundation ditch drill way to the gradable, and the operation personnel need not come down at the bottom of the hole, and greatly reduced construction safety risk promotes reinforcement efficiency by a wide margin. In short, the invention can ensure that the height difference control, the spacing control and the diameter control of the main reinforcement can be finished when the main reinforcement is suspended, the binding of the inner and the outer stirrups is finished in a hoisting state, and the verticality is high, the nodes are uniform, neat and beautiful after the binding of the reinforcement cage is finished. But also can satisfy the reinforcement cage ligature demand of different design diameter reinforcement cages, different specifications, different main muscle quantity, applicable in overhead line foundation type diversification, stake footpath, main muscle specification, the not unified various condition use of quantity.

Drawings

Fig. 1 is a schematic top view of one embodiment of the present invention (only one set of trolleys is shown locked).

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view of B-B in fig. 2.

Fig. 4 is a schematic view of fig. 2 taken along direction C.

Figure 5 is a left side schematic view of the block positioning fixture of figure 4.

Detailed Description

As shown in fig. 1, the cylindrical foundation hole reinforcing steel bar binding corrector disclosed in this embodiment includes an inner ring guide rail 1, an outer ring guide rail 2, a pulley 3, a main reinforcing steel bar fixture 4, and a pulley positioning fixture 5.

As can be seen from fig. 1 to 3, the cross-sectional shapes of the inner ring guide rail 1 and the outer ring guide rail 2 are both U-shaped, and the widths and depths of the notches of the two guide rails are the same.

The inner ring guide rail 1 and the outer ring guide rail 2 are concentrically arranged and are connected into a whole through the radial connecting piece 6, and the radial connecting piece 6 can flexibly select and use section steel such as thick steel plates or channel steel, square tubes and the like.

The connecting position of the radial connecting piece 6 needs to avoid the position of the main rib, and the setting number is determined according to actual needs. Meanwhile, the connection position of the radial connecting piece cannot influence the circumferential walking of the pulley.

As can be seen from fig. 1 to 3, the tackle 3 includes a frame 31 and rollers 32 connected to bottom surfaces of two ends of the frame 31, the frame 31 is a U-shaped body, and a rectangular groove is formed in a bottom surface of the U-shaped body along a length direction of the U-shaped body.

The quantity of coasters 3 is the same with the main muscle quantity of steel reinforcement cage, and every coaster realizes the circumference walking through the gyro wheel 32 at both ends respectively arranging in the notch of inner circle guide rail 1 and outer lane guide rail 2.

The length of the frame 31 is at least equal to the distance between the outer sides of the two guide rails, and the diameter of the roller 32 is selected to ensure that the bottom surface of the frame can contact with the top surfaces of the inner ring guide rail and the outer ring guide rail so as to realize the guide function and force transmission.

As can be seen from fig. 1 to 3, the main rib fixture 4 includes a rectangular base plate 41, an external threaded pipe 42 and a locking nut 43, the rectangular base plate 41 has a width greater than that of the rectangular groove on the frame 31, the external threaded pipe 42 has a plurality of axial grooves formed in an upper portion thereof and a lower end fixed to a central position of the rectangular base plate 41, and the locking nut 43 is connected to the grooved section of the external threaded pipe 42.

The inner diameter of the external thread pipe is larger than the outer diameter of the main rib with the largest diameter in the statistical specification, and the upper part of the external thread pipe is matched with an axial groove, so that the main rib fixture can be suitable for fixing main ribs with different diameters.

As can be seen from fig. 1, 2, 4 and 5, the pulley positioning fixture 5 includes a U-shaped 51 and a screw assembly, the screw assembly includes a screw 52 and a nut 53, the nut is welded outside a side arm of the U-shaped 51, and an outer end of the screw 52 is connected with a force applying rod 54 through a thread.

One pulley 3 is provided with two pulley positioning fixtures 5, and the two pulley positioning fixtures 5 respectively lock the two ends of the pulley with the corresponding guide rails, namely, the notches of the U-shaped 51 of the pulley positioning fixtures 5 simultaneously sleeve the guide rails and the bottom plate of the frame, and then the bottom plate of the pulley 3 is locked by screwing the screw 52 into the notches of the U-shaped.

Because the steel reinforcement cage weight of the cylinder basis of different diameters is different, in order to guarantee the safe handling of corrector, the size of inner circle guide rail and outer lane guide rail and coaster can have the difference. In order to make the corrector versatile, the depth of the notch of the U-shaped body 51 is designed to be greater than the sum of the total height of the guide rail and the thickness of the pulley bottom plate, so that the notch of the U-shaped clamp 51 can be sleeved on the guide rail and the pulley bottom plate with different sizes.

When the corrector is assembled, the rollers 32 at two ends of the pulley 3 are respectively arranged in the notches of the inner ring guide rail 1 and the outer ring guide rail 2, and two ends of the bottom surface of the frame 31 of the pulley are respectively positioned on the top surfaces of the inner ring guide rail and the outer ring guide rail.

The main bar clamp 4 is located in a notch of the tackle frame with its rectangular base plate placed on the inner surface of the frame 31.

The method for binding the reinforcement cage in the cylindrical foundation hole at the pithead by utilizing the corrector comprises the following steps:

(1) excavating a foundation pit, leveling a pithead, concentrically placing a cylindrical steel die at the pithead, and adjusting the levelness of the steel die. And simultaneously, the reinforcing steel bars are processed in a material station, and the single length of the main reinforcing steel bars is ensured to be uniform through alignment and stacking of the main reinforcing steel bars and marking and cutting.

(2) And assembling a jack outside the steel die, and supporting and jacking the corrector through the jack.

Three to four jacks with the stroke of about 1.5 to 1.8 meters are uniformly distributed outside the steel die to serve as supporting devices, and the levelness of the jacking heads of the jacks is adjusted through the bubble level ruler, so that the jacking heads of all the jacks are coplanar.

(3) And assembling the corrector, adjusting the levelness of the integral part of the inner ring guide rail and the outer ring guide rail, and arranging the pulleys with the same number on the inner ring track and the outer ring track according to the number of the main ribs.

(4) And (3) penetrating each main rib through each main rib fixture and the pulley frame from top to bottom, adjusting the radial position, and then screwing the locking nut of the main rib fixture.

(5) The height difference of the main ribs is controlled by the bubble level ruler, and the upper end surfaces of the main ribs are adjusted to be positioned on the same designated horizontal plane, so that the main ribs are naturally suspended on the frame of the scooter through dead weight.

(6) And moving the main rib at the fixed radial position to a specified position along with the pulley, and locking the pulley on the inner ring track and the outer ring track through a pulley positioning fixture.

(7) The steel reinforcement cage ligature is down carried out from last at the pithead, and the single ligature highly is half of jack stroke, and the back is accomplished in the single ligature, places shaped steel at the steel mould top surface, unloads the jack power and breaks away from the corrector back by the complete bearing steel reinforcement cage of shaped steel, and the jack stroke of readjustment upwards and bearing corrector bearing atress again begins next ligature operation, so circulation, finishes at the pithead ligature until the whole height of steel reinforcement cage.

As can be seen from the structure of the corrector and the process of binding the reinforcement cage by using the corrector, the invention has the following advantages:

can realize that steel reinforcement cage owner muscle interval, discrepancy in elevation, protective layer all finely tune the completion and fix before the ligature, utilize the cage body dead weight to hang and tie up and guarantee the steel reinforcement cage straightness that hangs down, the quality technology is perfect.

At pithead ligature steel reinforcement cage, personnel can move in a flexible way subaerial, improve the operating efficiency, successfully avoid the ligature to step on bamboo springboard in the prior art pothole, beat the safe risk level increase and the time consumption that safety belt caused.

The tackle is installed between the two concentric guide rails, the tackle can circumferentially walk, the main rib fixture can adjust the radial position along the tackle frame, and the tackle is applicable to reinforcement cage binding of different main rib intervals and different diameters and has universality.

The method has the advantages of one-time investment, working hours saving, work efficiency improvement, gradual recovery of cost, repeated use of a plurality of projects and good economic benefit.

After verification, the steel reinforcement cage bound by the corrector can be sequentially checked and accepted.