Manual lifting device for water pump of coal mine reservoir

Abstract

The utility model relates to the technical field of hoisting and hoisting, in particular to a manual hoisting device for a water pump of a coal mine reservoir, which comprises a supporting upright post bolted on the edge of the reservoir, a U-shaped seat is rotationally mounted at the top end of the supporting stand column; a lever is arranged in the middle of the U-shaped seat; the end, close to the supporting stand column, of the lever is fixedly connected with a wire spool through a fastening ring. A sling is wound on the wire spool; the sling penetrates through the interior of the lever; the end, away from the wire spool, of the sling is fixedly connected with a lifting hook. The lever is rotated to drive the U-shaped base to rotate at the top of the supporting stand column, so that the lifting hook moves to the position above the water pump, and the lifting hook is hung on a hanging ring of the water pump; rotating the wire spool, and recovering the sling to lift the water pump away from the reservoir; when the water pump is higher than the edge of the reservoir, the lever is rotated, so that the water pump horizontally rotates to the edge of the reservoir; and therefore, a worker can maintain and clean the water pump conveniently, and the maintenance and cleaning efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting and transporting technology field, concretely is a coal mine reservoir water pump manual hoisting device. BACKGROUND

[0002] The coal mine reservoir is mainly used for the discharge of condensate water of a ventilator and the collection of rainwater in the rainy season, and plays an emergency flood control role; in order to prevent excessive water accumulation in the reservoir, a water pump is usually placed in the reservoir to periodically discharge the water accumulation in the pool. Due to the accumulation of coal slurry in the reservoir, the water pump is often blocked and cannot perform normal water pumping, so the staff have to enter the reservoir to clean the water pump or use a crane to lift the water pump to the ground for cleaning.

[0003] After searching, a patent application with application number CN201910195720.0 discloses a water pump hoisting auxiliary traction device, which includes a support, a lifting rope, a lifting hook and a water pump lifting ring. The rotation and forward and backward movement of the traction rope can be manually adjusted on the ground to adjust the angle of the lifting hook in all directions, so that the lifting hook is hung on the lifting ring under the rotation and left and right movement of the traction rope. A patent application with application number CN201810561534.X discloses a well water pump hoisting device, which solves the problem that the position of the submersible pump below the water surface cannot be adjusted due to changes in the water level of the water well. It is convenient to operate and reliable. A patent application with application number CN201710905960.6 discloses a special support device for hoisting a water pump. The special support device for hoisting a water pump has simple structure and good stability, is easy to move, can be moved at will according to actual needs, and is very convenient.

[0004] Although the above-mentioned existing water pump hoisting and lifting device can be used for hoisting and lifting work of the water pump, due to the large width of the coal mine reservoir, the existing hoisting device is difficult to reach the position of the water pump in the coal mine reservoir, and it is difficult to lift the water pump at the edge of the coal mine reservoir and move it to the edge of the pool, which makes it difficult to clean the water pump, time-consuming and laborious, and low in efficiency.

[0005] Therefore, a coal mine reservoir water pump manual hoisting device is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] In order to make up for the shortcomings of the prior art and solve at least one technical problem proposed in the background art.

[0007] The utility model solves its technical problem and adopts the technical scheme: A coal mine water storage pool water pump manual hoisting device, including the support stand column of the bolt connection in the water storage pool side, the top of support stand column rotatory installation has the U shape seat, the middle part of U shape seat is provided with the lever, the one end of lever near support stand column is fixed with the wire reel through the fastening ring, the wire reel is coiled with the sling, the inside of lever is passed through the sling, the one end of sling away from wire reel is fixed with the lifting hook.

[0008] Preferably, the lever is fixed with a pair of supports at the end away from the support stand column through a fastening ring; the pair of supports are located below the end of the lever; a pulley is rotatably installed between the pair of supports; the sling is in sliding fit with the outer circumferential groove of the pulley.

[0009] Preferably, a pressing wheel is rotatably installed between the ends of the pair of supports away from the support stand column; the outer circumference of the pressing wheel is in sliding contact with the outer circumference of the pulley; the sling is located between the pressing wheel and the pulley.

[0010] Preferably, a guide cylinder is fixed at the inner circle of both ends of the lever; the inner circle of both ends of the guide cylinder is provided with a chamfer; the sling is slidably passed through the guide cylinder.

[0011] Preferably, a fixing cylinder is provided at the middle part of the U-shaped seat; the lever is slidably passed through the middle part of the fixing cylinder; the lever and the fixing cylinder are locked by bolts; both ends of the fixing cylinder are fixed with rotating columns; the rotating columns rotatably pass through the side wall of the U-shaped seat.

[0012] Preferably, a locking mechanism is provided at both sides of the U-shaped seat; the locking mechanism comprises a ring plate fixed at the side of the U-shaped seat; the ring plate is sleeved on the outer circle of the rotating column; guide rails are fixed at both sides of the ring plate; a sliding seat is slidably installed on the guide rail; a screw rod is rotatably installed at the middle part of the guide rail; the screw rod is in threaded fit with the sliding seat; a clamping block is bolted at the side of the sliding seat away from the guide rail; a plurality of clamping grooves are formed around the end of the rotating column away from the fixing cylinder; a fixing ring is provided at the outer circle of the end of the rotating column away from the fixing cylinder; a plurality of clamping blocks are fixed at the inner circle of the fixing ring; the clamping blocks are engaged with the clamping grooves, and the clamping blocks and the clamping grooves are locked by bolts; the clamping block can be in extrusion contact with the fixing ring.

[0013] Preferably, a plurality of convex teeth are fixed around the outer circle of the fixing ring; the side of the clamping block near the fixing ring is arc-shaped, and a plurality of tooth grooves are formed in the arc surface of the clamping block; the convex teeth are matched with the tooth grooves.

[0014] Preferably, a rubber ring is provided at the side of the ring plate near the fixing ring.

[0015] Preferably, a plurality of rubber cylinders are fixedly connected around between the rubber ring and the ring plate; a spring is arranged in the middle of the rubber cylinder; and the end of the spring is fixedly connected with the end of the rubber cylinder.

[0016] Preferably, a face tooth ring is fixedly connected to one side of the fixing ring close to the U-shaped seat; and the rubber ring can be in extrusion contact with the face tooth ring.

[0017] The utility model discloses the beneficial effect lies in:

[0018] 1. The utility model relates to a coal mine water storage pool water pump manual hoisting device, set up support stand, U-shaped seat, lever, reel, sling and lifting hook through, staff rotates lever, drives U-shaped seat to rotate at the top of support stand, make lifting hook move to the top of water pump, loosen the locking piece of reel, unthreaded sling loosens, and the lifting hook is hung on the ring of water pump, then, reel is rotated, and the sling passes through the inside of lever and is wound on the reel, and the sling is recycled and hoists water pump and separates from water storage pool, when the height of water pump is higher than the pool edge of water storage pool, rotates lever again, makes water pump horizontal rotation to the pool edge of water storage pool, thereby facilitate staff to the maintenance cleaning of water pump, improve the efficiency of maintenance cleaning.

[0019] 2. The utility model discloses a coal mine water storage pool water pump manual hoisting device, set up support and pulley, the end of lever sets up support and pulley, make the cooperation of sling and pulley, utilize the support guide of pulley to sling, make the contact of sling and the end of the inner chamber of lever change into the contact of pulley, avoid the damage of sling, simultaneously, because of the rotation of pulley, make the friction that sling receives reduce, reduce the force when hoisting water pump, thereby be favorable to the hoisting work of water pump. ACCURACY

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0021] Figure 1 It is the perspective view of the utility model;

[0022] Figure 2 It is the perspective view of the reel in the utility model;

[0023] Figure 3 It is the perspective view of the pulley in the utility model;

[0024] Figure 4 It is the perspective view of the U-shaped seat in the utility model;

[0025] Figure 5 It is the perspective view of the locking mechanism in the utility model;

[0026] Figure 6 It is the explosion view of the locking mechanism in the utility model;

[0027] Figure 7 It is the sectional view of the locking mechanism in the utility model;

[0028] Figure 8 It is the perspective view of the fixing ring in the utility model;

[0029] In the drawing: 1, support column; 2, U-shaped seat; 3, lever; 4, winding reel; 5, sling; 6, lifting hook; 7, support; 8, pulley; 9, pressure roller; 10, guide cylinder; 11, fixed cylinder; 12, rotating column; 13, ring plate; 14, guide rail; 15, sliding seat; 16, screw rod; 17, clamping block; 18, clamping groove; 19, fixing ring; 20, clamping block; 21, convex tooth; 22, tooth groove; 23, rubber ring; 24, rubber cylinder; 25, spring; 26, face tooth ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0031] As Figures 1 to 3 shown, a coal mine reservoir water pump manual hoisting device, including the support column 1 of bolting in the reservoir side; the top end of the support column 1 is rotatably installed with U-shaped seat 2; the middle part of the U-shaped seat 2 is provided with lever 3; the end of the lever 3 close to the support column 1 is fixed with winding reel 4 through fastening ring; the winding reel 4 is wound with sling 5; the sling 5 penetrates the inside of lever 3; the end of the sling 5 away from the winding reel 4 is fixed with lifting hook 6;

[0032] Due to the influence of the silt accumulated in the reservoir, the water pump for drainage will be blocked by silt, causing damage to the water pump and reducing the discharge efficiency, at this time, the water pump needs to be taken out from the reservoir for maintenance and cleaning;

[0033] When working, the worker rotates the lever 3, drives the U-shaped seat 2 to rotate at the top of the supporting column 1, moves the hook 6 above the water pump, loosens the locking part of the winding disc 4, loosens the winding sling 5, hangs the hook 6 on the hanging ring of the water pump, then rotates the winding disc 4, and the sling 5 is wound on the winding disc 4 through the inside of the lever 3, and the sling 5 is retracted to lift the water pump away from the reservoir; when the height of the water pump is higher than the pool edge of the reservoir, the lever 3 is rotated again, so that the water pump is horizontally rotated to the pool edge of the reservoir, thereby facilitating the worker to maintain and clean the water pump, and improving the maintenance and cleaning efficiency.

[0034] As shown in Figures 1 to 3 The end of the lever 3 away from the supporting column 1 is fixed with a pair of supports 7 through a fastening ring; the pair of supports 7 are located below the end of the lever 3; a pulley 8 is rotatably installed between the pair of supports 7; the sling 5 is in sliding fit with the outer circumferential groove of the pulley 8;

[0035] Since the sling 5 penetrates the inside of the lever 3, when the sling 5 hoists the water pump, the gravity of the water pump pulls the sling 5, which can make the sling 5 press downward to contact the inner cavity end of the lever 3, the sling 5 rubs against the inner cavity end of the lever 3, which can easily cause damage to the sling 5, and even cause the sling 5 to break;

[0036] Therefore, the supports 7 and the pulley 8 are arranged at the end of the lever 3, so that the sling 5 cooperates with the pulley 8; the pulley 8 supports and guides the sling 5, so that the contact between the sling 5 and the inner cavity end of the lever 3 is changed to the contact with the pulley 8, which avoids damage to the sling 5; at the same time, due to the rotation of the pulley 8, the friction force borne by the sling 5 is reduced, which reduces the force when hoisting the water pump, thereby facilitating the hoisting work of the water pump.

[0037] As shown in Figure 3 A pressure roller 9 is rotatably installed between the ends of the pair of supports 7 away from the supporting column 1; the outer periphery of the pressure roller 9 is in sliding contact with the outer periphery of the pulley 8; the sling 5 is located between the pressure roller 9 and the pulley 8;

[0038] The pulley 8 arranged on the outer side of the pressure roller 9 limits the sling 5 between the pressure roller 9 and the pulley 8, thereby avoiding the sling 5 from falling off the pulley 8, and improving the safety of hoisting the water pump.

[0039] As shown in Figures 2 to 3 The two end inner circles of the lever 3 are fixed with guide cylinders 10; the two end inner circles of the guide cylinders 10 are provided with chamfers; the sling 5 slides through the guide cylinders 10;

[0040] The guide cylinder 10 is arranged in the inner ring of the two ends of the lever 3, the inner cavity of the lever 3 is limited by the sling 5, the middle part of the inner cavity of the lever 3 is reduced, the contact between the sling 5 and the inner wall of the lever 3 is reduced, the friction damage of the sling 5 is reduced, and the service life of the sling 5 is prolonged.

[0041] As shown in Figure 1 and Figure 4 The middle part of the U-shaped seat 2 is provided with a fixing cylinder 11; the lever 3 is slid through the middle part of the fixing cylinder 11; the lever 3 is locked with the fixing cylinder 11 through bolts; the two ends of the fixing cylinder 11 are fixedly connected with rotating columns 12; the rotating columns 12 are rotatably connected through the side wall of the U-shaped seat 2;

[0042] When hoisting the water pump, the lever 3 is located at one end of the winding disc 4, the lever 3 drives the fixing cylinder 11 to rotate, drives the rotating column 12 to rotate, and makes the lever 3 located at one end of the hook 6 to be raised upward, so that the height of the water pump is effectively increased, and the water pump is convenient to hoist and cross the obstacles on the edge of the reservoir.

[0043] As shown in Figures 4 to 8 The two sides of the U-shaped seat 2 are provided with locking mechanisms; the locking mechanism comprises a ring plate 13 fixedly connected to the side of the U-shaped seat 2; the ring plate 13 is sleeved on the outer ring of the rotating column 12; the two sides of the ring plate 13 are fixedly connected with guide rails 14; the guide rails 14 are slidably connected with sliding seats 15; the middle part of the guide rail 14 is rotatably connected with a lead screw 16; the lead screw 16 is threadedly connected with the sliding seat 15; the side, away from the guide rail 14, of the sliding seat 15 is connected with a clamping block 17; a plurality of clamping grooves 18 are arranged around the end, away from the fixing cylinder 11, of the rotating column 12; a fixing ring 19 is arranged around the outer ring of the end, away from the fixing cylinder 11, of the rotating column 12; a plurality of clamping blocks 20 are fixedly connected around the inner ring of the fixing ring 19; the clamping blocks 20 are clamped with the clamping grooves 18, and the clamping blocks 20 and the clamping grooves 18 are locked through bolts; the clamping block 17 can be in extrusion contact with the fixing ring 19;

[0044] Before hoisting the water pump, the inclination angle of the lever 3 being raised upward can be adjusted according to the height of the obstacles on the edge of the reservoir, and then the angle of the lever 3 is fixed, so as to facilitate the hoisting operation of the staff;

[0045] When adjusting, the angle of the lever 3 is adjusted according to the height of the obstacles around the reservoir, then the wrench is used to rotate the screw rod 16, the sliding block 15 threaded with the screw rod 16 is driven to slide along the guide rail 14, and the clamping block 17 is driven to approach and press the outer wall of the fixed ring 19; the fixed ring 19 is clamped and fixed by the two clamping blocks 17, since the clamping block 20 in the inner ring of the fixed ring 19 is clamped with the clamping groove 18 at the end of the rotating column 12, and is locked by the bolt, when the fixed ring 19 is locked and fixed, the rotating column 12 and the fixed cylinder 11 are locked and fixed, and then the angle of the lever 3 is fixed, so as to facilitate the hoisting work of the staff.

[0046] As shown in Figures 4 to 8 the outer ring of the fixed ring 19 is surrounded by a plurality of protruding teeth 21; one side of the clamping block 17 close to the fixed ring 19 is arc-shaped, and a plurality of tooth grooves 22 are formed in the arc surface of the clamping block 17; the protruding teeth 21 are matched with the tooth grooves 22;

[0047] By setting the protruding teeth 21 on the outer ring of the fixed ring 19, and setting the tooth grooves 22 on the arc surface of the clamping block 17, the clamping and fixing of the clamping block 17 on the fixed ring 19 is improved, so as to avoid the rotation of the lever 3 under the pulling force of the water pump, and improve the safety of the water pump hoisting.

[0048] As shown in Figures 6 to 8 one side of the ring plate 13 close to the fixed ring 19 is provided with a rubber ring 23; a plurality of rubber cylinder columns 24 are fixedly connected between the rubber ring 23 and the ring plate 13; a spring 25 is arranged in the middle of the rubber cylinder column 24; the end of the spring 25 is fixedly connected with the end of the rubber cylinder column 24; a face tooth ring 26 is fixedly connected to one side of the fixed ring 19 close to the U-shaped seat 2; the rubber ring 23 can be in contact with the face tooth ring 26;

[0049] When working, the spring 25 and the rubber cylinder column 24 are pushed to tightly adhere to the face tooth ring 26 on the fixed ring 19 under the elastic force of the spring 25 and the rubber cylinder column 24, since the teeth of the face tooth ring 26 are arranged, a large friction force is generated between the face tooth ring 26 and the rubber ring 23; so when adjusting the angle of the lever 3, only when the staff applies downward pressure or upward force to the end of the lever 3, the rotation of the lever 3 will occur, thereby avoiding the rotation of the lever 3 after the staff completes the adjustment without timely locking, and facilitating the staff to lock after adjusting the lever 3;

[0050] By setting the spring 25 inside the rubber cylinder column 24 for use, the overall elasticity is improved by the spring 25, the overall support force is improved by the rubber cylinder column 24, and the deflection of the spring 25 is avoided, so as to ensure the tight adhesion of the face tooth ring 26 and the rubber ring 23.

[0051] Working principle: according to the height of the dam obstacle, adjust the angle of the lever 3 upward, press the lever 3 at one end of the reel 4, the lever 3 drives the fixed cylinder 11 to rotate, drives the rotating column 12 to rotate, so that the lever 3 at the end of the hook 6 is upward, due to the spring 25 and the rubber cylinder 24 under the action of the elastic force, push the rubber ring 23 closely contact with the face tooth ring 26 on the fixed ring 19, due to the tooth of the face tooth ring 26, the face tooth ring 26 and the rubber ring 23 between the greater friction force; thus, when adjusting the angle of the lever 3 upward, only when the staff exerts downward pressure or upward force on the end of the lever 3, the rotation will occur, thereby avoiding the rotation of the lever 3 after the staff adjusts and locks in time, and facilitating the staff to lock after adjusting the lever 3;

[0052] Then, the wrench is used to rotate the lead screw 16, the sliding seat 15 threaded with the lead screw 16 is driven to slide along the guide rail 14, the clamping block 17 is driven to approach and extrude the outer wall of the fixed ring 19, the fixed ring 19 is clamped and fixed by the two clamping blocks 17, since the clamping block 20 in the inner ring of the fixed ring 19 is clamped with the clamping groove 18 at the end of the rotating column 12, and is locked by the bolt, when the fixed ring 19 is fixed and locked, the rotating column 12 and the fixed cylinder 11 are also locked and fixed, and then the angle of the lever 3 is fixed.

[0053] Then, the lever 3 is rotated, the U-shaped seat 2 is rotated at the top of the supporting column 1, the hook 6 is moved above the water pump, the locking part of the reel 4 is loosened, the hanging cable 5 is loosened, the hook 6 is hung on the hanging ring of the water pump, then the reel 4 is rotated, the hanging cable 5 passes through the inside of the lever 3 and is wound on the reel 4, the bracket 7 and the pulley 8 are arranged at the end of the lever 3, so that the hanging cable 5 cooperates with the pulley 8, the pulley 8 is used to support and guide the hanging cable 5, so that the contact between the hanging cable 5 and the end of the inner cavity of the lever 3 is changed into the contact with the pulley 8, the damage of the hanging cable 5 is avoided, the hanging cable 5 is recovered to lift the water pump away from the reservoir, when the height of the water pump is higher than the pool edge of the reservoir, the lever 3 is rotated again, so that the water pump is horizontally rotated to the pool edge of the reservoir, thereby facilitating the staff to maintain and clean the water pump, and improving the maintenance and cleaning efficiency.

[0054] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A coal mine impoundment water pump hoist hand operated device characterized by: The utility model provides a water conservancy storage pool's automatic lifting device, including the support column (1) of butt joint in the water conservancy storage pool side, the top of support column (1) rotates and installs U -shaped seat (2), U -shaped seat (2)'s middle part is provided with lever (3), and lever (3) is close to the one end of support column (1) and is fixed with winding reel (4) through fastening ring, winding reel (4) is coiled with sling (5) on, and sling (5) penetrates the inside of lever (3), and the one end of sling (5) is fixed with lifting hook (6) away from winding reel (4).

2. A coal mine pond water pump manual hoisting device according to claim 1, characterized in that: The one end of lever (3) is away from support column (1) and is fixed with a pair of support (7) through fastening ring, a pair of support (7) is located the lower portion of lever (3) end, and a pair of support (7) between rotatingly installed pulley (8), and sling (5) with the outer circumferential groove of pulley (8) sliding fit.

3. A coal mine pond water pump manual hoisting device according to claim 2, characterized in that: The one end of a pair of support (7) is away from support column (1) and is rotatably installed with pressure roller (9) between, and the outer circumferential of pressure roller (9) and the outer circumferential sliding contact of pulley (8), and sling (5) is located between pressure roller (9) and pulley (8).

4. A coal mine pond water pump manual hoisting device according to claim 1, characterized in that: The both ends inner ring of lever (3) are fixed with guide cylinder (10), and the both ends inner ring of guide cylinder (10) are provided with chamfer, and sling (5) slidingly penetrates guide cylinder (10).

5. A coal mine pond water pump hoist hand operated device according to claim 1, characterized in that: The middle part of U -shaped seat (2) is provided with fixed cylinder (11), and lever (3) slidingly penetrates the middle part of fixed cylinder (11), and the between lever (3) and fixed cylinder (11) is locked through bolt, and the both ends of fixed cylinder (11) are fixed with rotating column (12), and rotating column (12) rotatably penetrates the side wall of U -shaped seat (2).

6. A coal mine pond water pump manual hoisting device according to claim 5, characterized in that: The both sides of U -shaped seat (2) are provided with locking mechanism, and the locking mechanism includes ring plate (13) fixed in the side of U -shaped seat (2), and ring plate (13) is sleeved on the outer ring of rotating column (12), and the both sides of ring plate (13) are fixed with guide rail (14), and sliding seat (15) is slidingly installed on guide rail (14), and the middle part of guide rail (14) is rotatably installed with screw rod (16), and screw rod (16) and sliding seat (15) are threadedly matched, and the one side of sliding seat (15) is away from guide rail (14) and is butt jointed with clamping block (17), and the one end of rotating column (12) is away from fixed cylinder (11) and is provided with a plurality of clamping grooves (18) around, and the outer ring of the one end of rotating column (12) is provided with fixed ring (19) away from fixed cylinder (11), and the inner ring of fixed ring (19) is fixed with a plurality of clamping blocks (20) around, and the clamping block (20) and clamping groove (18) are engaged, and the between clamping block (20) and clamping groove (18) is locked through bolt, and clamping block (17) can be extruded with fixed ring (19).

7. A coal mine pond water pump hoist as claimed in claim 6 wherein: The outer ring of fixed ring (19) is fixed with a plurality of convex teeth (21) around, and the one side of clamping block (17) is close to fixed ring (19) and is arc surface, and a plurality of tooth grooves (22) are formed in the arc surface of clamping block (17), and convex tooth (21) and tooth groove (22) are matched.

8. A coal mine pond water pump hoist as claimed in claim 6 wherein: The rubber ring (23) is arranged on one side of the ring plate (13) close to the fixed ring (19).

9. A coal mine pond water pump jacking device as claimed in claim 8, characterised in that: A plurality of rubber cylinder columns (24) are fixedly connected around the rubber ring (23) and the ring plate (13); the middle part of the rubber cylinder column (24) is provided with a spring (25); the end of the spring (25) is fixedly connected with the end of the rubber cylinder column (24).

10. A coal mine pond water pump hoist apparatus as claimed in claim 8, characterised in that: The fixed ring (19) is fixedly connected with a face tooth ring (26) on one side close to the U-shaped seat (2); the rubber ring (23) can be in extrusion contact with the face tooth ring (26).

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