1. Can realize two-way braking and have elevator safety tongs of high stability, including elevator track (3), its characterized in that: a support stabilizing mechanism (2) is inserted on the outer ring of the elevator track (3) in a sliding way, a movable contact mechanism (1) is inserted in the support stabilizing mechanism (2) in a sliding way, the movable contact mechanism (1) comprises a connecting steel cable (11), an adaptive hole (12), an extrusion block (13), a trapezoidal wedge plate (14), a limiting groove (15), an auxiliary clamping device (16) and a connecting positioning rod (17), the connecting steel cable (11) is fixedly connected to the center of the top end of the extrusion block (13), the adaptive holes (12) are arranged at two sides of the top end of the extrusion block (13), the extrusion block (13) is fixedly connected at the center of the top end of the trapezoidal wedge plate (14), the limiting grooves (15) are arranged on two sides of the trapezoidal wedge plate (14), the connecting and positioning rod (17) is fixedly connected with the center of the bottom end of the limiting groove (15), the auxiliary clamping devices (16) are fixedly arranged at two ends of the connecting and positioning rod (17).

2. The elevator safety gear capable of realizing bidirectional braking and having high stability as claimed in claim 1, characterized in that: the auxiliary clamping device (16) comprises a rotary inserted link (161), a rotary connecting link (162), an L-shaped connecting link (163), an auxiliary spring (164), a limit bolt (165), a connecting key (166) and a rotary brake block (167), the rotary inserted rod (161) is inserted in the side end of the rotary brake block (167) in a sliding way, the rotating connecting rod (162) is rotatably connected to one side of the rotating inserted rod (161) departing from the rotating brake block (167), the limit bolt (165) is rotatably connected between the rotary connecting rod (162) and the rotary connecting rod (162), the connecting key (166) is fixedly connected with the side end of the rotary brake block (167), the connecting key (166) is positioned below the rotating inserted bar (161), the auxiliary spring (164) is fixedly connected with one end of the connecting key (166) close to the limiting bolt (165), the L-shaped connecting rod (163) is fixedly connected between the auxiliary spring (164) and the auxiliary spring (164).

3. The elevator safety gear capable of realizing bidirectional braking and having high stability as claimed in claim 2, characterized in that: the supporting and stabilizing mechanism (2) comprises a back plate (21), a side baffle (22), a speed reducing device (23), an L-shaped air cylinder (24), a piston rod (25), a contact speed limiting disc (26) and an auxiliary cleaning device (27), wherein the back plate (21) is inserted on the side end of the side baffle (22) in a sliding mode, the speed reducing device (23) is inserted in the side baffle (22) in a sliding mode in an equal-distance mode, the auxiliary cleaning device (27) is fixedly installed at the top of the side end of the side baffle (22) in a symmetrical mode, the L-shaped air cylinder (24) is fixedly connected to the top end of the side baffle (22) in a symmetrical mode, the piston rod (25) is inserted in the L-shaped air cylinder (24) in a sliding mode, and the contact speed limiting disc (26) is fixedly connected to one end, deviating from the L-shaped air cylinder (24), of the piston rod (25).

4. The elevator safety gear capable of realizing bidirectional braking and having high stability as claimed in claim 3, characterized in that: decelerator (23) include that movable pulley (231), removal insert a section of thick bamboo (232), spacing chuck (233), accomodate sleeve (234), first extrusion spring (235) and L type spacing curb plate (236), movable pulley (231) rotate to be connected and to be served at the removal that inserts a section of thick bamboo (232), spacing chuck (233) fixed connection is on the other end that removes an section of thick bamboo (232), the side of a section of thick bamboo (232) is inserted in the removal in L type spacing curb plate (236) fixed connection, the one end fixed connection of first extrusion spring (235) is served at the one of the spacing curb plate of L type (236), the other end fixed connection of first extrusion spring (235) is in the inside of accomodating sleeve (234).

5. The elevator safety gear capable of realizing bidirectional braking and having high stability as claimed in claim 4, characterized in that: the auxiliary cleaning device (27) comprises a second extrusion spring (271), a moving push plate (272), a supporting shaft (273), a sweeping blade (274) and a contact rolling wheel (275), wherein the moving push plate (272) is fixedly connected to the side end of the second extrusion spring (271), the supporting shaft (273) is rotatably connected between the moving push plate (272) and the moving push plate (272), the contact rolling wheel (275) is fixedly connected to the center of the outer side of the supporting shaft (273), the sweeping blade (274) is fixedly connected to the supporting shaft (273) in an equal distance mode, and the sweeping blade (274) is located on two sides of the contact rolling wheel (275).

6. The elevator safety gear capable of realizing bidirectional braking and having high stability as claimed in claim 5, characterized in that: the sweeping blade (274) is made of nylon, the limiting chuck (233) and the contact speed limiting disc (26) are made of anti-skidding wear-resistant plastic, a wedge-shaped stop block matched with the trapezoidal wedge plate (14) is fixedly connected to the inside of the side baffle (22), and a movable groove matched with the movable push plate (272) is formed in the side baffle (22).

7. The elevator safety gear capable of realizing bidirectional braking and having high stability as claimed in claim 6, wherein: the side of side shield (22) is gone up the symmetry equidistance and is seted up the spout with L type spacing curb plate (236) looks adaptation, the inside slip grafting in bottom of L type cylinder (24) has the location piston rod, and the weight of location piston rod is greater than the gross weight of piston rod (25) and contact speed-limiting disc (26), the inside buckle groove of seting up with rotation inserted bar (161) looks adaptation of side of rotating brake block (167), the width of spacing groove (15) is unanimous with the width of movable pulley (231).

8. The elevator safety gear capable of realizing bidirectional braking and having high stability as claimed in claim 7, wherein: the utility model discloses a side shield (22) of rotating brake block, including rotating brake block (167), L type connecting rod (163) fixed connection is in the both ends bottom of side shield (22), just L type connecting rod (163) are located between rotating brake block (167), accomodate sleeve (234) symmetry equidistance fixed connection on the side of side shield (22), second extrusion spring (271) fixed connection is in the inside of side shield (22).

Background

Elevator safety tongs is a braking equipment that is used for elevator in time to stop or brake, through using safety tongs and overspeed governor collocation, when the elevator speed of travel surpassed the overspeed governor, the overspeed governor can initiate the linkage reaction to safety tongs, thereby contact through safety tongs and elevator guide rail, make and in time stop the elevator, setting through elevator safety tongs, can promote the security of elevator under emergency greatly, can avoid the emergence of elevator accident, current elevator safety tongs still has some problems when using, for example:

current elevator safety tongs are because structural constraint for can only carry on spacingly to a direction, when the inside goods that bear of elevator is heavier, can lead to elevator braking distance to increase, consequently can promote the potential safety hazard, and the inside dust that can store up throughout the year of elevator corridor for the dust can be attached to on the elevator guide rail, and permanent accumulation can influence the braking efficiency of elevator, consequently needs an equipment to improve it to above-mentioned problem.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the elevator safety gear which can realize bidirectional braking and has high stability.

The technical scheme adopted by the invention for solving the technical problems is as follows: can realize two-way braking and have elevator safety tongs of high stability, including the elevator track, it has support stabilizing mean to slide to peg graft on the orbital outer lane of elevator, it has the removal contact mechanism to support stabilizing mean's inside slip peg graft, remove contact mechanism including connecting steel cable, adaptation hole, extrusion piece, trapezoidal board, spacing groove, supplementary clamping device and connecting rod, connect steel cable fixed connection at the top center of extrusion piece, the top both sides at the extrusion piece are seted up in the adaptation hole, extrusion piece fixed connection is at the top center of trapezoidal board of carving, the both sides at trapezoidal board of carving are seted up to the spacing groove, connecting rod fixed connection is at the bottom center of spacing groove, supplementary clamping device fixed mounting is on connecting rod's both ends.

Specifically, supplementary clamping device is including rotating inserted bar, rotation connecting rod, L type connecting rod, auxiliary spring, spacing bolt, connecting key and rotation brake block, it pegs graft inside the side of rotation brake block to rotate the inserted bar slip, it rotates to connect on one side that the rotation inserted bar deviates from the rotation brake block to rotate the connecting rod, spacing bolt rotates to be connected between rotation connecting rod and rotation connecting rod, connecting key fixed connection is in the side of rotation brake block, just the connecting key is located the below of rotating the inserted bar, auxiliary spring fixed connection is close to the one end of spacing bolt at the connecting key, L type connecting rod fixed connection is between auxiliary spring and auxiliary spring.

The supporting and stabilizing mechanism comprises a back plate, a side baffle plate, a speed reducing device, an L-shaped air cylinder, a piston rod, a contact speed limiting disc and an auxiliary cleaning device, wherein the back plate is inserted on the side end of the side baffle plate in a sliding mode, the speed reducing device is inserted in the side baffle plate in a sliding mode in an equidistance mode, the auxiliary cleaning device is fixedly installed at the top of the side end of the side baffle plate in a symmetrical mode, the L-shaped air cylinder is fixedly connected to the top end of the side baffle plate in a symmetrical mode, the piston rod is inserted in the L-shaped air cylinder in a sliding mode, and the contact speed limiting disc is fixedly connected.

Specifically, decelerator includes that the movable pulley, removal are inserted a section of thick bamboo, spacing chuck, storage sleeve, first extrusion spring and the spacing curb plate of L type, the movable pulley rotates to be connected and is being served at the removal section of thick bamboo of inserting, spacing chuck fixed connection is on the removal other end of inserting a section of thick bamboo, the side of a section of thick bamboo is inserted in the removal to the spacing curb plate fixed connection of L type, the one end fixed connection of first extrusion spring is served at the one of the spacing curb plate of L type, the other end fixed connection of first extrusion spring is in storage sleeve's inside.

Specifically, supplementary cleaning device includes second extrusion spring, removal push pedal, back shaft, sweeps the blade and contact and rolls the wheel, remove push pedal fixed connection on the side of second extrusion spring, the back shaft rotates to be connected between removing the push pedal and removing the push pedal, contact rolls wheel fixed connection at back shaft outside center, sweep blade equidistance fixed connection on the back shaft, just sweep the both sides that the blade is located the contact and rolls the wheel.

Specifically, the material of sweeping the blade is the nylon, the material of spacing chuck and contact speed-limiting disc is for being the wear-resisting plastic of antiskid, the inside fixedly connected with of side shield carves the wedge dog of looks adaptation with trapezoidal, the movable groove with removal push pedal looks adaptation is seted up to the inside of side shield.

Specifically, the side of side shield is gone up the symmetry equidistance and is seted up the spout with the spacing curb plate looks adaptation of L type, the inside slip grafting in bottom of L type cylinder has the location piston rod, and the weight of location piston rod is greater than the gross weight of piston rod and contact speed-limiting disc, the inside buckle groove of seting up with rotation inserted bar looks adaptation of side of rotating the brake block, the width of spacing groove is unanimous with the width of movable pulley.

Specifically, the rotation brake block rotates the both ends bottom of connecting at the side shield, L type connecting rod fixed connection is in the both ends bottom of side shield, just L type connecting rod is located between the rotation brake block, accomodate sleeve symmetry equidistance fixed connection on the side of side shield, second extrusion spring fixed connection is in the inside of side shield.

The invention has the beneficial effects that:

the elevator safety tongs capable of realizing bidirectional braking and having high stability are inserted in the supporting and stabilizing mechanism in a sliding mode through the movable contact mechanism, when the movable contact mechanism is used, the movable contact mechanism can be in contact with a matching device in the supporting and stabilizing mechanism, so that the movable contact mechanism can be driven to be in contact with an elevator guide rail, preliminary braking work is finished, the bottom limiting device is fixedly installed in the movable contact mechanism, when the movable contact mechanism moves upwards to a limit position through the arrangement of the bottom limiting device, the bottom limiting device can be driven to move inwards, so that the bottom end of the elevator guide rail can be braked, the reset device is fixedly connected in the bottom limiting device, the reset device can quickly finish resetting work through the arrangement of the reset device, and the auxiliary positioning device is fixedly installed in the supporting and stabilizing mechanism, through the arrangement of the auxiliary positioning device, the elevator guide rail can be limited again, so that the stability of the elevator can be further improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic diagram of the moving contact mechanism of the present invention;

FIG. 3 is a schematic view of an auxiliary clamping device according to the present invention;

FIG. 4 is a schematic structural view of a support stabilizing mechanism of the present invention;

FIG. 5 is a schematic view of the reduction gear of the present invention;

fig. 6 is a schematic structural diagram of an auxiliary cleaning device of the present invention.

In the figure: 1-moving contact mechanism, 2-supporting stabilizing mechanism, 3-elevator track, 11-connecting steel cable, 12-adapting hole, 13-extrusion block, 14-trapezoidal wedge plate, 15-limiting groove, 16-auxiliary clamping device, 17-connecting positioning rod, 161-rotating inserted rod, 162-rotating connecting rod, 163-L-shaped connecting rod, 164-auxiliary spring, 165-limiting bolt, 166-connecting key, 167-rotating brake block, 21-back plate, 22-side baffle plate, 23-speed reducing device, 24-L-shaped air cylinder, 25-piston rod, 26-contacting speed limiting disc, 27-auxiliary cleaning device, 231-sliding wheel, 232-moving inserted cylinder, 233-limiting chuck, 234-receiving sleeve, 235-first extrusion spring, 236-L-shaped limit side plate, 271-second extrusion spring, 272-moving push plate, 273-support shaft, 274-sweeping blade and 275-contact rolling wheel.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the elevator safety gear with high stability and capable of realizing bidirectional braking according to the present invention comprises an elevator track 3, a support stabilizing mechanism 2 is slidably inserted on an outer ring of the elevator track 3, a moving contact mechanism 1 is slidably inserted inside the support stabilizing mechanism 2, the moving contact mechanism 1 comprises a connecting steel cable 11, an adapting hole 12, and a squeezing block 13, the device comprises a trapezoidal wedge plate 14, a limiting groove 15, an auxiliary clamping device 16 and a connecting and positioning rod 17, wherein a connecting steel cable 11 is fixedly connected to the center of the top end of an extrusion block 13, adaptive holes 12 are formed in two sides of the top end of the extrusion block 13, the extrusion block 13 is fixedly connected to the center of the top end of the trapezoidal wedge plate 14, the limiting groove 15 is formed in two sides of the trapezoidal wedge plate 14, the connecting and positioning rod 17 is fixedly connected to the center of the bottom end of the limiting groove 15, and the auxiliary clamping device 16 is fixedly installed at two ends of the connecting and positioning rod 17.

Specifically, the auxiliary clamping device 16 includes a rotary insertion rod 161, a rotary connection rod 162, an L-shaped connection rod 163, an auxiliary spring 164, a limit bolt 165, a connection key 166 and a rotary brake block 167, the rotary insertion rod 161 is slidably inserted inside a side end of the rotary brake block 167, the rotary connection rod 162 is rotatably connected to a side of the rotary insertion rod 161 away from the rotary brake block 167, the limit bolt 165 is rotatably connected between the rotary connection rod 162 and the rotary connection rod 162, the connection key 166 is fixedly connected to a side end of the rotary brake block 167, the connection key 166 is located below the rotary insertion rod 161, the auxiliary spring 164 is fixedly connected to an end of the connection key 166 close to the limit bolt 165, the L-shaped connection rod 163 is fixedly connected between the auxiliary spring 164 and the auxiliary spring 164, when the limit bolt 165 moves upward, the rotary connection rod 162 and the rotary insertion rod 161 are driven to move upward, and the rotary insertion rod 161 moves upward to a limit position, the rotary brake block 167 can be driven to rotate inwards, so that the elevator rail 3 can be clamped by the rotary brake block 167 to complete the braking work.

Specifically, the supporting and stabilizing mechanism 2 comprises a back plate 21, a side baffle 22, a speed reducer 23, an L-shaped cylinder 24, a piston rod 25, a contact speed limiting disc 26 and an auxiliary cleaning device 27, wherein the back plate 21 is inserted on the side end of the side baffle 22 in a sliding manner, the speed reducer 23 is inserted inside the side baffle 22 in a sliding manner symmetrically and equidistantly, the auxiliary cleaning device 27 is fixedly installed at the top of the side end of the side baffle 22 in a symmetrical manner, the L-shaped cylinder 24 is fixedly connected to the top end of the side baffle 22 in a symmetrical manner, the piston rod 25 is inserted inside the L-shaped cylinder 24 in a sliding manner, the contact speed limiting disc 26 is fixedly connected to one end of the piston rod 25, which is far away from the L-shaped cylinder 24, through the arrangement of the speed reducer 23, when the trapezoidal wedge plate 14 rises, the speed reducer 23 can be driven to complete the wedging work, the preliminary limiting work is completed, and when the piston rod 25 moves, so that the work of assisting the deceleration can be performed.

Specifically, the speed reducer 23 includes a sliding wheel 231, a movable insertion tube 232, a limit chuck 233, a storage sleeve 234, a first extrusion spring 235 and an L-shaped limit side plate 236, the sliding wheel 231 is rotatably connected to one end of the movable insertion tube 232, the limit chuck 233 is fixedly connected to the other end of the movable insertion tube 232, the L-shaped limit side plate 236 is fixedly connected to the side end of the movable insertion tube 232, one end of the first extrusion spring 235 is fixedly connected to one end of the L-shaped limit side plate 236, the other end of the first extrusion spring 235 is fixedly connected to the inside of the storage sleeve 234, the L-shaped limit side plate 236 can be driven by the elasticity of the first extrusion spring 235, the movable insertion tube 232 and the limit chuck 233 move inwards, and therefore the reset operation can be performed quickly.

Specifically, the auxiliary cleaning device 27 includes a second pressing spring 271, a moving push plate 272, a support shaft 273, a sweeping blade 274 and a contact rolling wheel 275, the moving push plate 272 is fixedly connected to the side end of the second pressing spring 271, the support shaft 273 is rotatably connected between the moving push plate 272 and the moving push plate 272, the contact rolling wheel 275 is fixedly connected to the center of the outer side of the support shaft 273, the sweeping blades 274 are fixedly connected to the support shaft 273 at equal intervals, the sweeping blades 274 are located at two sides of the contact rolling wheel 275, the moving push plate 272 is pressed by the second pressing spring 271 to move outwards, so that the contact rolling wheel 275 can be driven to contact the surface of the elevator track 3, the contact rolling wheel 275 and the sweeping blade 274 can be driven to rotate, and sweeping operation is completed.

Specifically, the sweeping blade 274 is made of nylon, the limiting chuck 233 and the contact speed limiting disc 26 are both made of anti-slip wear-resistant plastic, the side guard 22 is fixedly connected with a wedge-shaped stopper matched with the trapezoidal wedge plate 14, the side guard 22 is internally provided with a movable groove matched with the movable push plate 272, and the trapezoidal wedge plate 14 is fixedly connected with a wedge-shaped stopper matched with the trapezoidal wedge plate 14 through the side guard 22, so that the extrudable sliding wheel 231 can move outwards when the trapezoidal wedge plate 14 moves upwards.

Specifically, sliding grooves matched with the L-shaped limiting side plates 236 are symmetrically and equidistantly formed in the side ends of the side baffles 22, positioning piston rods are inserted into the bottom ends of the L-shaped air cylinders 24 in a sliding mode, the weight of each positioning piston rod is larger than the total weight of the piston rod 25 and the contact speed limiting disc 26, snap grooves matched with the rotating insertion rods 161 are formed in the side ends of the rotating brake pads 167, the width of each limiting groove 15 is consistent with that of the corresponding sliding wheel 231, positioning piston rods are inserted into the bottom ends of the L-shaped air cylinders 24 in a sliding mode, and the weight of each positioning piston rod is larger than the total weight of the piston rod 25 and the contact speed limiting disc 26, so that when the trapezoidal wedge plates 14 are kept in a normal state, the positioning piston rods can drive the piston rods 25 and.

Specifically, the rotary brake block 167 is rotatably connected to the bottoms of the two ends of the side baffle 22, the L-shaped connecting rod 163 is fixedly connected to the bottoms of the two ends of the side baffle 22, the L-shaped connecting rod 163 is located between the rotary brake blocks 167, the accommodating sleeve 234 is symmetrically and fixedly connected to the side end of the side baffle 22 at equal intervals, the second extrusion spring 271 is fixedly connected to the inside of the side baffle 22, the rotary brake blocks 167 are rotatably connected to the bottoms of the two ends of the side baffle 22, and the rotary brake blocks 167 can be supported to complete the rotary positioning.

The working principle is as follows: when in use, the connecting steel cable 11 is firstly connected with an external speed limiter, and then external screws penetrate through mounting holes at two sides of the side baffle plate 22 and the back plate 21, so that the device can be fixed on an elevator, when the moving speed of the elevator exceeds the preset speed of the speed limiter, the speed limiter can perform linkage work on a safety tongs, so that the connecting steel cable 11 can be driven to move upwards, when the connecting steel cable 11 moves upwards, the extrusion block 13 and the trapezoidal wedge plate 14 can be driven to move upwards simultaneously, when the trapezoidal wedge plate 14 moves upwards, the sliding wheel 231 can be gradually contacted with the sliding wheel 231, the sliding wheel 231 slides in the limiting groove 15, so that the trapezoidal wedge plate 14 can be ensured to move along a straight line, when the trapezoidal wedge plate 14 extrudes the sliding wheel 231 and the movable insertion barrel 232 to move inwards to a limiting position, the limiting chuck 233 can be driven to be contacted with the surface of the elevator track 3, so that the moving speed of the elevator can be reduced, meanwhile, a plurality of speed reducers 23 are arranged, so when the trapezoidal wedge plate 14 moves upwards to the limit position, the speed reducers 23 can be driven to be in contact with the elevator track 3, impact force can be distributed, meanwhile, the extrusion block 13 can extrude a positioning piston rod at the bottom end inside the L-shaped cylinder 24, so that gas inside the L-shaped cylinder 24 can be extruded to drive the side end of the piston rod 25 to move, when the piston rod 25 moves to the limit position, the contact speed limiting disc 26 can be driven to be in contact with the elevator track 3, the top end of the safety tongs can be limited, the elevator speed can be reduced in an auxiliary mode, meanwhile, when the trapezoidal wedge plate 14 moves upwards to the limit position, the connecting and positioning rod 17 can be driven to ascend, when the connecting and positioning rod 17 ascends to the limit position, the limiting bolt 165 can be driven to move the rotating and connecting rod 162 upwards, and meanwhile, the connecting key 166 and the rotating brake pad 167 can be driven to contract inwards through the elasticity of the auxiliary spring 164, the auxiliary rotary brake block 167 completes the clamping work, when the rotary connecting rod 162 moves upwards, the rotary inserting rod 161 can be driven to slide in the rotary brake block 167, and with the continuous upward sliding of the rotary inserting rod 161, the rotary brake block 167 can be driven to contact with the elevator track 3, thereby completing the bottom end positioning work of the safety tongs, meanwhile, when the side baffle 22 and the back plate 21 move, the movable push plate 272 and the supporting shaft 273 can be driven to move outwards through the elasticity of the second extrusion spring 271 until the contact rolling wheel 275 contacts with the inner side of the elevator track 3, thereby driving the contact rolling wheel 275 and the sweeping blade 274 to rotate simultaneously, when the sweeping blade 274 rotates, the contact rolling blade can contact with the inner side of the elevator track 3, thereby sweeping the dust and sundries in the inner side of the elevator track 3, avoiding excessive dust accumulation, when the speed limiter does not drive the connecting steel cable 11, the elastic force of the first extrusion spring 235 can drive the L-shaped limiting side plate 236, the movable insertion barrel 232, the sliding wheel 231 and the limiting chuck 233 to move towards the inside of the side baffle 22, the reset operation is completed, the connecting and positioning rod 17 can drive the limiting bolt 165 to move downwards until the auxiliary spring 164 is unfolded, the rotary brake block 167 is prevented from contacting with the elevator track 3 again, and the whole braking and speed limiting operation is completed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.