Elevator steel wire rope end crimping device

Abstract

The utility model relates to a steel cable installation technical field discloses an elevator steel wire rope end portion crimping device, including sleeve, the inner wall of sleeve is equipped with arc clamping slot, the inner wall of arc clamping slot is fixedly connected with antiskid pad, the left side of sleeve is fixedly connected with fixed block, the inner wall of fixed block is equipped with first through -hole, the inner wall of first through -hole is connected with pre -tightening bolt slidingly, the outer wall of first through -hole is fixedly connected with fixed nut, the outer wall of pre -tightening bolt is connected with first spring slidingly, and the first spring has wedge, the inner wall of sleeve is connected with steel cable slidingly. In the utility model, when working, first, the steel cable is inserted into the inner wall of sleeve, the steel cable is adhered to the arc clamping slot, the pre -tightening bolt is rotated, the pre -tightening bolt is rotated, and the mutual cooperation between the subsequent parts is passed through, the locking mechanism is closely adhered with the steel cable, is further consolidated through mechanical occlusion, even if the empty load, the pre -tightening force of first spring still can maintain the pressure to the steel cable, and the steel cable is guaranteed not to loosen and fall off.

Description

Technical Field

[0001] This utility model relates to the field of steel cable installation technology, and in particular to an elevator steel wire rope end crimping device. Background Technology

[0002] Elevator wire rope end crimping devices play a crucial role in the installation, maintenance, and operation of elevators. They are used to securely connect critical load-bearing structures, crimping and locking the ends of the elevator wire ropes to ensure stable transmission of the tension required for elevator lifting. Elevator wire rope end crimping devices are widely used in critical connection links throughout the entire life cycle of an elevator to ensure that the cable end connections meet load-bearing standards at the time of manufacture.

[0003] When making a firm connection to the critical load-bearing structure and completing the crimping and locking of the elevator wire rope ends, an elevator wire rope end crimping device is required. Existing elevator wire rope end crimping devices are mostly single-structure designs with poor component compatibility. A single structure is difficult to adapt to the stress requirements under different working conditions, which can easily lead to excessive compression of the steel cable and insecure crimping. Incompatibility defects between components will accelerate the wear rate, increase the risk factor, and cause accidents. This will significantly increase production costs, reduce product quality, and shorten service life. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an elevator wire rope end crimping device, which aims to improve the problems of simple device structure and poor component adaptability in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an elevator wire rope end crimping device, comprising a sleeve, an arc-shaped groove on the inner wall of the sleeve, an anti-slip pad fixedly connected to the inner wall of the arc-shaped groove, a fixing block fixedly connected to the left side of the sleeve, a first through hole on the inner wall of the fixing block, a pre-tightening bolt slidably connected to the inner wall of the first through hole, a fixing nut fixedly connected to the outer wall of the first through hole, a first spring slidably connected to the outer wall of the pre-tightening bolt, a wedge-shaped block on the first spring, a steel cable slidably connected to the inner wall of the sleeve, and a locking mechanism slidably connected to the outer wall of the steel cable, the locking mechanism being used to lock the elevator connecting wire to prevent loosening and falling off.

[0006] As a further description of the above technical solution: The locking mechanism includes a locking ring, the outer wall of which is slidably connected to the outer wall of the steel cable. A clamping block is slidably connected to the outer wall of the locking ring. Multiple locking holes are provided on the inner wall of the clamping block. Multiple external threads are fixedly connected to the outer wall of the locking ring. A latch is slidably connected to the right side of the clamping block. Multiple rotating columns are rotatably connected to the inner wall of the latch. A pawl is rotatably connected to the outer wall of the rotating column. A bushing is rotatably connected to the outer wall of the pawl. A second spring is fixedly connected to the outer wall of the bushing. A fixing post is fixedly connected to the top of the second spring.

[0007] As a further description of the above technical solution: A reinforcing plate is fixedly connected to the top of the sleeve, and a fixing rod is fixedly connected to the inner wall of the reinforcing plate.

[0008] As a further description of the above technical solution: The outer wall of the fixing rod is fixedly connected to the bottom shell, and the top of the bottom shell is fixedly connected to the inner wall of the top cover.

[0009] As a further description of the above technical solution: A rubber ring is slidably connected to the top of the bottom shell, and a limit ring is slidably connected to the outer wall of the rubber ring.

[0010] As a further description of the above technical solution: The top of the limiting ring is slidably connected to a third spring, and the top of the third spring is fixedly connected to a top cover.

[0011] As a further description of the above technical solution: A threaded rod is fixedly connected to the top of the top cover, and a limit nut is threadedly connected to the inner wall of the threaded rod.

[0012] As a further description of the above technical solution: The inner wall of the limiting nut is provided with a second through hole, and a pin is slidably connected to the inner wall of the second through hole.

[0013] This utility model has the following beneficial effects: 1. In this utility model, when the device is working, the steel cable is first inserted into the inner wall of the sleeve so that the steel cable fits against the arc-shaped groove. The pre-tightening bolt is rotated, and it moves along the first through hole of the fixing block. It cooperates with the fixing nut to compress the first spring. The spring force pushes the wedge block to squeeze the steel cable, thus achieving initial fixation. The anti-slip pad in the arc-shaped groove increases the friction with the steel cable and reduces slippage. When the steel cable is under force during operation, the locking mechanism fits tightly with the steel cable. The mechanical interlocking further strengthens the cable. Even when unloaded, the pre-tightening force of the first spring can still maintain the pressure on the steel cable, ensuring that the steel cable does not loosen or fall off. This can improve product quality and increase service life.

[0014] 2. In this utility model, when the locking mechanism is working, the locking ring is first placed on the outside of the steel cable, and then the clamping block is slidably mounted on the outer wall of the locking ring. When the steel cable is pulled by force, the external thread on the outer wall of the locking ring drives the clamping block to move towards the steel cable. The locking hole on the inner wall of the clamping block assists in limiting the movement. At the same time, the clamping block pushes the right-side lock buckle. The pawl supported by the rotating column inside the lock buckle engages with the external thread under the elastic force of the second spring. This structure only allows the locking ring to tighten in one direction, preventing it from loosening in the opposite direction, thus achieving a stable locking of the steel cable. Attached Figure Description

[0015] Figure 1 This is a front perspective view of an elevator wire rope end crimping device proposed in this utility model; Figure 2 This is a partial structural exploded view of an elevator wire rope end crimping device proposed in this utility model; Figure 3 This is a cross-sectional view of the clamping block of an elevator wire rope end crimping device proposed in this utility model; Figure 4 This is a partial structural diagram of an elevator wire rope end crimping device proposed in this utility model; Figure 5 This is a cross-sectional view of the threaded rod of an elevator wire rope end crimping device proposed in this utility model.

[0016] Legend: 1. Sleeve; 2. Locking mechanism; 201. Locking ring; 202. Clamping block; 203. Locking hole; 204. External thread; 205. Locking buckle; 206. Rotating column; 207. Pawl; 208. Bushing; 209. Second spring; 210. Fixing column; 3. Arc-shaped groove; 4. Anti-slip pad; 5. Fixing block; 6. First through hole; 7. Preload bolt; 8. Fixing nut; 9. First spring; 10. Wedge block; 11. Steel cable; 12. Reinforcing plate; 13. Fixing rod; 14. Bottom shell; 15. Rubber ring; 16. Limiting ring; 17. Third spring; 18. Top cover; 19. Threaded rod; 20. Limiting nut; 21. Second through hole; 22. Pin. Detailed Implementation

[0017] 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.

[0018] Please see the appendix Figure 1 and attached Figure 2An embodiment of this utility model provides an elevator wire rope end crimping device, including a sleeve 1. The inner wall of the sleeve 1 is provided with an arc-shaped groove 3. An anti-slip pad 4 is fixedly connected to the inner wall of the arc-shaped groove 3. A fixing block 5 is fixedly connected to the left side of the sleeve 1. The inner wall of the fixing block 5 is provided with a first through hole 6. A pre-tightening bolt 7 is slidably connected to the inner wall of the first through hole 6. A fixing nut 8 is fixedly connected to the outer wall of the first through hole 6. A first spring 9 is slidably connected to the outer wall of the pre-tightening bolt 7. A wedge block 10 is attached to the first spring 9. A steel cable 11 is slidably connected to the inner wall of the sleeve 1. A locking mechanism 2 is slidably connected to the outer wall of the steel cable 11. The locking mechanism 2 is used to lock the connecting steel wire for elevators to prevent loosening and falling off. Specifically, the sleeve 1 serves as the core load-bearing structure. The arc-shaped groove 3 on its inner wall can fit against the outer wall of the steel cable 11. The anti-slip pad 4 inside the groove can increase the friction with the steel cable 11, initially reducing the risk of the steel cable 11 sliding. The fixing block 5 on the left side of the sleeve 1 provides support for the pre-tightening structure. The first through hole 6 on its inner wall can accommodate the sliding of the pre-tightening bolt 7. The fixing nut 8 on the outer wall of the through hole can cooperate with the pre-tightening bolt 7 to adjust the tightness. The first spring 9 on the outer wall of the pre-tightening bolt 7 can transmit the elastic force to the wedge block 10, pushing the wedge block 10 to squeeze the steel cable 11, achieving pre-tightening in a tension-free state. When the steel cable 11 is under force, the locking mechanism 2 on the inner wall of the sleeve 1 will further fit against the steel cable 11, enhancing the locking effect through mechanical engagement and preventing the steel cable 11 from loosening and falling off. The overall structure, with the triple effects of pre-tightening, anti-slip, and locking, is suitable for different working conditions of elevators under no-load and heavy-load conditions, ensuring the stability and safety of the steel wire rope end connection.

[0019] Please see the appendix Figure 1 and attached Figure 3 The locking mechanism 2 includes a locking ring 201. The outer wall of the locking ring 201 is slidably connected to the outer wall of the steel cable 11. A clamping block 202 is slidably connected to the outer wall of the locking ring 201. Multiple locking holes 203 are opened on the inner wall of the clamping block 202. Multiple external threads 204 are fixedly connected to the outer wall of the locking ring 201. A latch 205 is slidably connected to the right side of the clamping block 202. Multiple rotating columns 206 are rotatably connected to the inner wall of the latch 205. A pawl 207 is rotatably connected to the outer wall of the rotating column 206. A bushing 208 is rotatably connected to the outer wall of the pawl 207. A second spring 209 is fixedly connected to the outer wall of the bushing 208. A fixing post 210 is fixedly connected to the top of the second spring 209. Specifically, the locking mechanism 2 achieves reliable locking of the steel cable 11 through the coordinated action of multiple components. The locking ring 201 is fitted onto the outer wall of the steel cable 11, providing basic support for subsequent clamping. The external thread 204 on its outer wall can cooperate with the clamping block 202 to adjust its position. The clamping block 202 is fitted onto the locking ring 201, and the locking hole 203 on its inner wall can cooperate with relevant components to limit displacement. When the steel cable 11 is under force, the clamping block 202 can move towards the steel cable 11, further squeezing the locking ring 201 and enhancing the clamping force on the steel cable 11. The clamping force of cable 11 is achieved by locking buckle 205 on the right side of clamping block 202. Rotating column 206 on its inner wall supports the rotation of pawl 207. Pawl 207 can engage with external thread 204 to prevent locking ring 201 from loosening in the opposite direction. Bushing 208 fixes the position of pawl 207. Second spring 209 is connected to bushing 208 at one end and fixed column 210 at the other end, which can provide continuous elastic force for pawl 207 to ensure that it is always tightly engaged with external thread 204 and prevent steel cable 11 from loosening and falling off throughout the process.

[0020] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 A reinforcing plate 12 is fixedly connected to the top of the sleeve 1, a fixing rod 13 is fixedly connected to the inner wall of the reinforcing plate 12, a rubber ring 15 is slidably connected to the top of the bottom shell 14, a limit ring 16 is slidably connected to the outer wall of the rubber ring 15, the bottom shell 14 is fixedly connected to the outer wall of the fixing rod 13, and the top of the bottom shell 14 is fixedly connected to the inner wall of the top cover 18. Specifically, the reinforcing plate 12 at the top of the sleeve 1 can enhance the structural strength of the top of the sleeve 1 and prevent the sleeve 1 from deforming under long-term stress. The fixing rod 13 on the inner wall of the reinforcing plate 12 plays a connecting and supporting role. The bottom shell 14 fixed on its outer wall provides an installation base for the protective components. The top of the bottom shell 14 is fixed to the inner wall of the top cover 18 to form a closed space, which can protect the internal components from dust and impurities. The rubber ring 15 slidably connected to the top of the bottom shell 14 can buffer the vibration of the steel cable 11 and reduce the friction damage between the steel cable 11 and the bottom shell 14. The limiting ring 16 on the outer wall of the rubber ring 15 can limit the displacement of the rubber ring 15 and ensure that it is always in the buffer position, thereby improving the overall structural stability and durability of the device.

[0021] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 The top of the limiting ring 16 is slidably connected to a third spring 17, the top of the third spring 17 is fixedly connected to a top cover 18, the inner wall of the limiting nut 20 is provided with a second through hole 21, the inner wall of the second through hole 21 is slidably connected to a pin 22, the top of the top cover 18 is fixedly connected to a threaded rod 19, and the inner wall of the threaded rod 19 is threadedly connected to the limiting nut 20. Specifically, the third spring 17, which is slidably connected to the top of the limiting ring 16, connects the limiting ring 16 at one end and the top cover 18 at the other end. It provides elastic support for the limiting ring 16, assists the rubber ring 15 in buffering the vibration of the steel cable 11, and can also offset the slight displacement of the limiting ring 16, thereby enhancing the buffering stability. The threaded rod 19 fixed to the top of the top cover 18 is threadedly engaged with the inner wall of the limiting nut 20. The installation height of the top cover 18 can be adjusted by rotating the limiting nut 20 to adapt to the protection requirements under different working conditions. The second through hole 21 on the inner wall of the limiting nut 20 accommodates the sliding of the pin 22. After the pin 22 is inserted, it can lock the relative position of the threaded rod 19 and the limiting nut 20, preventing the limiting nut 20 from loosening and ensuring the sealing effect of the top cover 18.

[0022] Working principle: When the device is working, the steel cable 11 is first inserted into the inner wall of the sleeve 1, so that the steel cable 11 fits against the arc-shaped groove 3. The pre-tightening bolt 7 is rotated, and it moves along the first through hole 6 of the fixing block 5. It cooperates with the fixing nut 8 to compress the first spring 9. The spring force pushes the wedge block 10 to squeeze the steel cable 11, thus achieving initial fixation. The anti-slip pad 4 in the arc-shaped groove 3 increases the friction with the steel cable 11 and reduces slippage. When the elevator is running and the steel cable 11 is under force, the locking mechanism 2 fits tightly with the steel cable 11. The mechanical interlocking further strengthens the connection. Even if the elevator is unloaded, the pre-tightening force of the first spring 9 can still maintain the pressure of the wedge block 10 on the steel cable 11, ensuring that the steel cable 11 does not loosen or fall off throughout the process. When the locking mechanism 2 is working, the locking ring 201 is first placed on the outside of the steel cable 11, and then the clamping block 202 is slidably mounted on the outer wall of the locking ring 201. When the steel cable 11 is pulled by force, the external thread 204 on the outer wall of the locking ring 201 drives the clamping block 202 to move towards the steel cable 11. The locking hole 203 on the inner wall of the clamping block 202 assists in limiting the movement. At the same time, the clamping block 202 pushes the right-side lock buckle 205. The pawl 207 supported by the rotating column 206 inside the lock buckle 205 engages with the external thread 204 under the elastic force of the second spring 209. This structure only allows the locking ring 201 to tighten in one direction, preventing it from loosening in the opposite direction, thus achieving a stable locking of the steel cable 11.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elevator wire rope end crimping device, comprising a sleeve (1), characterized in that: The inner wall of the sleeve (1) is provided with an arc-shaped groove (3), and an anti-slip pad (4) is fixedly connected to the inner wall of the arc-shaped groove (3). A fixing block (5) is fixedly connected to the left side of the sleeve (1). A first through hole (6) is provided on the inner wall of the fixing block (5). A pre-tightening bolt (7) is slidably connected to the inner wall of the first through hole (6). A fixing nut (8) is fixedly connected to the outer wall of the first through hole (6). A first spring (9) is slidably connected to the outer wall of the pre-tightening bolt (7). A wedge block (10) is provided on the first spring (9). A steel cable (11) is slidably connected to the inner wall of the sleeve (1). A locking mechanism (2) is slidably connected to the outer wall of the steel cable (11). The locking mechanism (2) is used to lock the connecting steel wire of the elevator to prevent it from loosening and falling off.

2. The elevator wire rope end crimping device according to claim 1, characterized in that: The locking mechanism (2) includes a locking ring (201), the outer wall of the locking ring (201) is slidably connected to the outer wall of the steel cable (11), a clamping block (202) is slidably connected to the outer wall of the locking ring (201), a plurality of locking holes (203) are opened on the inner wall of the clamping block (202), a plurality of external threads (204) are fixedly connected to the outer wall of the locking ring (201), a latch (205) is slidably connected to the right side of the clamping block (202), a plurality of rotating columns (206) are rotatably connected to the inner wall of the latch (205), a pawl (207) is rotatably connected to the outer wall of the rotating column (206), a bushing (208) is rotatably connected to the outer wall of the pawl (207), a second spring (209) is fixedly connected to the outer wall of the bushing (208), and a fixing column (210) is fixedly connected to the top of the second spring (209).

3. The elevator wire rope end crimping device according to claim 1, characterized in that: A reinforcing plate (12) is fixedly connected to the top of the sleeve (1), and a fixing rod (13) is fixedly connected to the inner wall of the reinforcing plate (12).

4. The elevator wire rope end crimping device according to claim 3, characterized in that: The outer wall of the fixing rod (13) is fixedly connected to the bottom shell (14), and the top of the bottom shell (14) is fixedly connected to the inner wall of the top cover (18).

5. The elevator wire rope end crimping device according to claim 4, characterized in that: A rubber ring (15) is slidably connected to the top of the bottom shell (14), and a limit ring (16) is slidably connected to the outer wall of the rubber ring (15).

6. The elevator wire rope end crimping device according to claim 5, characterized in that: The top of the limiting ring (16) is slidably connected to a third spring (17), and the top of the third spring (17) is fixedly connected to a top cover (18).

7. The elevator wire rope end crimping device according to claim 6, characterized in that: The top of the top cover (18) is fixedly connected to a threaded rod (19), and the inner wall of the threaded rod (19) is threadedly connected to a limit nut (20).

8. The elevator wire rope end crimping device according to claim 7, characterized in that: The inner wall of the limiting nut (20) is provided with a second through hole (21), and a pin (22) is slidably connected to the inner wall of the second through hole (21).

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