An elevator maintenance anti-falling device

Abstract

The utility model discloses an elevator maintenance anti -falling device relates to elevator maintenance technical field, including first triangular board and second triangular board, the inner wall hinged of first triangular board has a plurality of branch legs, the inner wall hinged of second triangular board has the same number of connecting rod with branch leg, the inner wall sliding contact of slide sleeve has stand, the top of stand is connected with the top plate, the one end of claw sleeve is contacted with the inner wall of card slot, the utility model discloses design reasonable structure, it can cooperate through the branch leg, stand, top plate and claw between, through the contact of claw and card slot, limit stand moving position, keep the stability of stand, and stand is contacted with the bottom of car through top plate, provides support force at the bottom of car, and the car cannot fall down the building, provides support force for car, improves the security of operating personnel, compared with the construction temporary support, need not too much operation, improves the convenience of car support.

Description

Technical Field

[0001] This utility model relates to the field of elevator maintenance technology, specifically an elevator maintenance anti-fall device. Background Technology

[0002] Elevator maintenance is a crucial aspect of ensuring the safe and reliable operation of elevators. Regular maintenance and repairs ensure safe operation and eliminate potential safety hazards. This involves periodically inspecting mechanical components such as wire ropes, guide rails, safety brakes, control cabinets, wiring, the car, and safety protection devices like speed governors and buffers. This allows for the timely detection of wear, aging, and loosening issues, preventing accidents such as elevator falls, overshooting, and entrapment due to component failure. Regularly lubricating mechanical components (e.g., lubricating guide rails and bearings) and cleaning dust from electrical components slows down wear. Through systematic maintenance, inspection, and optimization, the safety, efficiency, and lifespan of elevators are improved.

[0003] When maintaining an elevator car, to prevent it from suddenly falling, the car is usually supported by locking the safety clamps, brakes, or setting up temporary supports. Although safety clamps, brakes, or temporary supports can generally support the car, safety clamps and brakes may malfunction, posing a certain risk. Setting up temporary supports is also time-consuming. Therefore, we provide an elevator maintenance anti-fall device to solve the above problems. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] This utility model proposes an elevator maintenance anti-fall device. Through the cooperation between the outriggers, columns, top plate and claws, it solves the problems that safety clamps, brakes or temporary supports can support the car, but safety clamps and brakes may malfunction and pose certain risks, and temporary supports are time-consuming to build.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an elevator maintenance anti-fall device, comprising a first triangular plate and a second triangular plate, wherein the inner wall of the first triangular plate is hinged with a plurality of legs arranged in a circular pattern, the second triangular plate is located below the first triangular plate, and the inner wall of the second triangular plate is hinged with a connecting rod having the same number of legs as the number of legs, wherein the end of the connecting rod away from the second triangular plate is hinged to the legs, the inner wall of the first triangular plate is connected to a sliding sleeve, the inner wall of the sliding sleeve is in sliding contact with a column, and the top of the column is connected to a top plate;

[0008] The outer surface of the sliding sleeve is connected to two sliding blocks, which are symmetrical to each other. The inner walls of the two sliding blocks are slidably connected to claws. The inner side of the column is provided with multiple slots, which are arranged at equal intervals. One end of the claw that penetrates the sliding sleeve contacts the inner wall of the slot. One side of each claw is connected to an ear plate, and the inner wall of the ear plate is threaded with a positive and negative screw.

[0009] Furthermore, a support base is connected to the outer surface of the sliding sleeve, and the outer surface of the positive and negative lead screws is rotatably connected to the inner wall of the support base. A first handwheel is connected to one end of the positive and negative lead screws located outside the support base.

[0010] Furthermore, a support pad is connected to the upper surface of the top plate, and the support pad is made of rubber.

[0011] Furthermore, a base plate is hinged to the end of the support leg away from the first triangular plate, and the lower surface of the base plate is connected with reverse teeth.

[0012] Furthermore, a locking screw is threaded onto the inner wall of the second triangular plate, a second handwheel is connected to the top of the locking screw, and a triangular claw is sleeved on the outside of the locking screw, with the inner wall of the triangular claw in contact with the outer surface of the connecting rod.

[0013] Furthermore, a positioning block is connected to the upper surface of the second triangular plate, and the positioning block is adapted to the triangular claw.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this elevator maintenance fall prevention device has the following advantages:

[0016] I. This elevator maintenance fall protection device, through the cooperation of the outriggers, column, top plate, and claws, provides support to the first triangular plate through the outriggers, maintaining the stability of the first triangular plate and the sliding sleeve. The sliding sleeve provides support to the column, maintaining the stability of the column. The claws contact the slots to restrict the movement of the column, maintaining its stability. The column contacts the bottom of the car through the top plate, providing support at the bottom of the car. This prevents the car from falling downwards, providing support for the car and improving the safety of the workers. Compared with setting up temporary supports, it requires less operation and improves the convenience of supporting the car.

[0017] II. The elevator maintenance anti-fall device, through the cooperation between the triangular claw, the positioning block, and the locking screw, reduces the contact distance between the triangular claw and the second triangular plate by rotating the locking screw, ensuring that the triangular claw maintains a tight contact force with the second triangular plate. The triangular claw wraps around the outside of the connecting rod, preventing the connecting rod from swinging and maintaining its stability, allowing the connecting rod to stably provide support force to the outriggers. The positioning block provides a stop for the triangular claw, sets the rotation angle of the triangular claw, prevents the triangular claw from rotating too much, and facilitates the positioning of the triangular claw after disassembly. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the slide structure of this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the sliding sleeve of this utility model;

[0022] Figure 4 This is a schematic diagram of the column structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the triangular claw structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the inverted tooth structure of this utility model.

[0025] In the diagram: 1. First triangle plate; 2. Second triangle plate; 3. Support leg; 4. Connecting rod; 5. Sliding sleeve; 6. Column; 7. Top plate; 8. Slide seat; 9. Claw; 10. Slot; 11. Ear plate; 12. Positive and negative lead screws; 13. Support seat; 14. First handwheel; 15. Support pad; 16. Base plate; 17. Back tooth; 18. Locking lead screw; 19. Second handwheel; 20. Triangular claw; 21. Positioning block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-6 As shown, this utility model provides a technical solution: an elevator maintenance anti-fall device, including a first triangular plate 1 and a second triangular plate 2. Multiple support legs 3 are hinged to the inner wall of the first triangular plate 1, and the support legs 3 are arranged in a circular pattern. The second triangular plate 2 is located below the first triangular plate 1. The inner wall of the second triangular plate 2 is hinged to a connecting rod 4, the same number as the support legs 3. The end of the connecting rod 4 away from the second triangular plate 2 is hinged to the support leg 3. A sliding sleeve 5 is connected to the inner wall of the first triangular plate 1, and a column 6 slides in contact with the inner wall of the sliding sleeve 5. A top plate 7 is connected to the top of the column 6. There are three support legs 3. The support legs 3 provide support to the first triangular plate 1, maintaining the stability of the first triangular plate 1 and the sliding sleeve 5. The sliding sleeve 5 provides support to the column 6, maintaining the stability of the column 6. The column 6 adjusts the height of the top plate 7. The top plate 7 contacts the bottom of the car, providing support to the car. The second triangular plate 2 and the connecting rod 4 connect the support legs 3 together, maintaining the overall stability of the column 6.

[0028] Two sliding blocks 8 are connected to the outer surface of the sliding sleeve 5, and the two sliding blocks 8 are symmetrical. The inner walls of the two sliding blocks 8 are slidably connected with claws 9. The inner side of the column 6 is provided with multiple slots 10, and the multiple slots 10 are arranged at equal distances. The claws 9 are inserted into the inside of the slots 10 to provide resistance to the column 6 and restrict the movement of the column 6. One end of the claws 9 that passes through the sliding sleeve 5 is in contact with the inner wall of the slots 10. One side of each claw 9 is connected with an ear plate 11. The outer surface of the ear plate 11 is slidably connected to the inner wall of the sliding block 8. The inner side of the sliding block 8 is provided with a groove for the ear plate 11 to move. The inner wall of the ear plate 11 is threaded with a positive and negative screw rod 12. By rotating the positive and negative screw rod 12, a pushing force is generated to provide power for the movement of the claws 9 and drive the claws 9 to move.

[0029] The outer surface of the sliding sleeve 5 is connected to the support base 13. The outer surface of the positive and negative lead screw 12 is rotatably connected to the inner wall of the support base 13. The end of the positive and negative lead screw 12 located outside the support base 13 is connected to the first handwheel 14. The first handwheel 14 increases the contact area with the positive and negative lead screw 12, making it easier for the hand to rotate the positive and negative lead screw 12. The support base 13 provides support force for the positive and negative lead screw 12, maintaining the stability of the positive and negative lead screw 12.

[0030] The top plate 7 is connected to a support pad 15 on its upper surface. The support pad 15 is made of rubber. The top plate 7 contacts the bottom of the car through the support pad 15, increasing the friction with the car.

[0031] The support leg 3 is hinged to a base plate 16 at the end away from the first triangular plate 1. The lower surface of the base plate 16 is connected to a reverse tooth 17. The base plate 16 increases the contact area between the support leg 3 and the ground, thereby improving the stability of the support leg 3. The reverse tooth 17 increases the friction between the base plate 16 and the ground, thereby improving the stability of the support leg 3.

[0032] The inner wall of the second triangular plate 2 is threaded with a locking screw 18. The top of the locking screw 18 is connected to a second handwheel 19. A triangular claw 20 is sleeved on the outside of the locking screw 18. The inner wall of the triangular claw 20 is in contact with the outer surface of the connecting rod 4. The second handwheel 19 facilitates hand contact with the locking screw 18 and rotation of the locking screw 18. By rotating the locking screw 18, the contact distance between the triangular claw 20 and the second triangular plate 2 is reduced, so that the triangular claw 20 maintains a tight contact force with the second triangular plate 2. The triangular claw 20 wraps around the outside of the connecting rod 4 to prevent the connecting rod 4 from swinging and to maintain the stability of the connecting rod 4. A positioning block 21 is connected to the upper surface of the second triangular plate 2, and the positioning block 21 is adapted to the triangular claw 9. The positioning block 21 provides a block for the triangular claw 20 and sets the rotation angle of the triangular claw 20 to prevent the triangular claw 20 from rotating too much.

[0033] Working principle: In use, first, the outrigger 3 is extended. After the outrigger 3 is extended, the triangular pawl 20 is rotated. The triangular pawl 20 wraps around the outside of the connecting rod 4. Then, the locking bolt is rotated by the second handwheel 19. After the locking bolt rotates, it causes the triangular pawl 20 to tightly contact the second triangular plate 2 and the connecting rod 4, maintaining the stability of the connecting rod 4. Then, the column 6 is pushed to move upward until the support pad 15 contacts the bottom of the car. Then, the forward and reverse screw 12 is rotated by the first handwheel 14. After the forward and reverse screw 12 rotates, it causes the pawl 9 to move through the ear plate 11. Then, the pawl 9 contacts the slot 10, restricting the movement of the column 6 and maintaining the stability of the column 6. This allows the column 6 to stably provide support to the top plate 7 and the support pad 15.

[0034] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. An elevator maintenance fall prevention device, comprising a first triangular plate (1) and a second triangular plate (2), characterized in that: The inner wall of the first triangular plate (1) is hinged with multiple legs (3), and the multiple legs (3) are arranged in a circle. The second triangular plate (2) is located below the first triangular plate (1). The inner wall of the second triangular plate (2) is hinged with the same number of connecting rods (4) as the number of legs (3). The end of the connecting rod (4) away from the second triangular plate (2) is hinged to the legs (3). The inner wall of the first triangular plate (1) is connected to a sliding sleeve (5). The inner wall of the sliding sleeve (5) is in sliding contact with a column (6). The top of the column (6) is connected to a top plate (7). The outer surface of the sliding sleeve (5) is connected to two sliding blocks (8), and the two sliding blocks (8) are symmetrical. The inner walls of the two sliding blocks (8) are slidably connected to claws (9). The inner side of the column (6) is provided with multiple slots (10), and the multiple slots (10) are arranged at equal distances. One end of the claw (9) penetrates the sliding sleeve (5) and contacts the inner wall of the slot (10). One side of the two claws (9) is connected to an ear plate (11), and the inner wall of the ear plate (11) is threaded with a positive and negative screw rod (12).

2. The elevator maintenance anti-fall device according to claim 1, characterized in that: The outer surface of the sliding sleeve (5) is connected to a support seat (13), the outer surface of the positive and negative lead screw (12) is rotatably connected to the inner wall of the support seat (13), and the end of the positive and negative lead screw (12) located outside the support seat (13) is connected to a first handwheel (14).

3. The elevator maintenance anti-fall device according to claim 1, characterized in that: The upper surface of the top plate (7) is connected to a support pad (15), and the support pad (15) is made of rubber.

4. The elevator maintenance anti-fall device according to claim 1, characterized in that: The support leg (3) is hinged to a base plate (16) at the end away from the first triangular plate (1), and the lower surface of the base plate (16) is connected with a back tooth (17).

5. The elevator maintenance anti-fall device according to claim 1, characterized in that: The inner wall of the second triangular plate (2) is threaded with a locking screw (18), the top of the locking screw (18) is connected to a second handwheel (19), and a triangular claw (20) is sleeved on the outside of the locking screw (18). The inner wall of the triangular claw (20) is in contact with the outer surface of the connecting rod (4).

6. The elevator maintenance fall prevention device according to claim 5, characterized in that: The upper surface of the second triangular plate (2) is connected to a positioning block (21), and the positioning block (21) is compatible with the triangular claw (9).

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