A self-locking device for a steel wire rope

Abstract

The application relates to a self-locking device for a steel wire rope, and relates to the technical field of self-locking devices, which comprises a mounting plate, a receiving block and a mounting frame are arranged on the mounting plate, a gap for the steel wire rope to pass through is arranged on the receiving block, a mounting shaft is horizontally arranged in the mounting frame, a handle is arranged on the mounting shaft, a self-locking block is arranged on the side wall of the handle, a mounting block capable of abutting against the receiving block is slidably arranged on the mounting frame, a containing groove for the steel wire rope to pass through is arranged on the mounting block, the gap and the containing groove can form a ring-shaped rope hole for the steel wire rope to pass through, and the mounting plate is connected with the mounting block through a locking mechanism. The gap and the containing groove form the rope hole, when the steel wire rope passes through the rope hole and the mounting block and the receiving block abut against each other, the inner wall of the gap and the inner wall of the containing groove can embrace the steel wire rope, so that the risk that the steel wire rope is separated from the self-locking device is reduced, and the use safety of the self-locking device is improved.

Description

Technical Field

[0001] This application relates to the field of self-locking devices, and more particularly to a self-locking device for wire ropes. Background Technology

[0002] Wire rope self-locking devices are personal fall protection equipment used by workers climbing up and down in high-altitude operations. They can be used in high-altitude work sites such as power, petroleum, communications, shipbuilding, construction, exterior wall spraying, and cleaning.

[0003] Patent CN204684492U discloses a wire rope self-locking device, which includes an upper shell, a lower shell, a first swing arm, a second swing arm, connecting rods, and a spring. The upper and lower shells are identical in shape, both being L-shaped. A U-shaped rope groove, bent by a bending machine, is provided on one side of the wide side of the L-shape for the passage of a protective rope. The height of the U-shaped rope groove is less than the height of the inner wide side of the folded L-shape. The upper and lower shells are placed in an alternating manner facing each other. The ends of the first and second swing arms near the U-shaped rope grooves are respectively located between the upper and lower shells and are rotatably connected by rivets. The spring is located at the rivet rotation hole near the end of the second swing arm near the U-shaped rope groove and is fixed through a fixing hole on the second swing arm and a fixing hole inside the upper shell. The other end of the second swing arm is a handle. The other ends of the first and second swing arms near the handle are both located between two connecting rods and are rotatably connected to the two ends of the two connecting rods by rivets. A wire fixing hole is provided on the handle.

[0004] Regarding the aforementioned technologies, the steel cable is inserted into the upper and lower housings, and the first and second swing arms respectively abut against the steel cable, thus connecting the self-locking device to the steel cable. To facilitate the assembly of the self-locking device, both the upper and lower housings are U-shaped to allow the steel cable to be inserted into them.

[0005] However, when workers are operating at heights, there is a risk that the wire rope could come loose from the gap in the upper or lower housing if the worker or the self-locking device swings or twists significantly. Therefore, the inventors believe that the self-locking device has a defect in terms of poor safety during use. Summary of the Invention

[0006] To improve the safety of self-locking devices, this application provides a self-locking device for wire ropes.

[0007] The self-locking device for steel wire rope provided in this application adopts the following technical solution:

[0008] A self-locking device for wire rope includes a mounting plate, a receiving block and a mounting frame. The receiving block has a clearance groove for the wire rope to pass through. A mounting shaft is horizontally rotatably mounted inside the mounting frame. A handle is mounted on the mounting shaft. A self-locking block is mounted on the side wall of the handle. When the handle drives the self-locking block to rotate, the self-locking block can press the wire rope against the inner wall of the clearance groove. A mounting block that can abut against the receiving block is slidably mounted on the mounting frame. The mounting block has a receiving groove for the wire rope to pass through. The clearance groove and the receiving groove can form an annular rope groove for the wire rope to pass through. The mounting plate and the mounting block are connected by a locking mechanism.

[0009] By adopting the above technical solution, when installing the wire rope and self-locking device, the mounting block is pulled away from the receiving block, and then the wire rope enters the clearance groove. Subsequently, the mounting block is pushed towards the receiving block, causing the mounting block to abut against the receiving block. At this point, the clearance groove and the receiving groove form a rope hole, and the wire rope passes through the rope hole. Simultaneously, the inner walls of the clearance groove and the receiving groove can encircle the wire rope, thereby reducing the risk of the wire rope detaching from the self-locking device and improving the safety of the self-locking device.

[0010] Optionally, the locking mechanism is provided as two, which are symmetrically distributed at both ends of the mounting plate and can jointly fix the mounting block to the mounting frame.

[0011] By adopting the above technical solution, and by setting two locking mechanisms that can jointly fix the mounting block to the mounting frame, the mounting block can only move away from the receiving block after both locking mechanisms are opened simultaneously. This design can effectively reduce the risk of the mounting block being unlocked by accidental opening of the locking mechanisms by the user, thereby further improving the stability of the self-locking device.

[0012] Optionally, mounting slots are provided at both ends of the sidewall of the mounting block. The locking mechanism includes a locking plate that is vertically slidably disposed in each mounting slot and guide slots that are respectively provided at both ends of the sidewall of the mounting plate. The locking plate extends into the corresponding guide slot and can slide horizontally within the corresponding guide slot. The upper inner wall of the upper guide slot and the lower inner wall of the lower guide slot are respectively provided with locking slots for the corresponding locking plates to be engaged. The mounting block is provided with two control mechanisms that can control the vertical movement of the corresponding locking plates.

[0013] By adopting the above technical solution, two control mechanisms control the corresponding locking plates to move towards or away from each other. When the locking plate disengages from or engages with the corresponding locking slot, the mounting block can be unlocked or locked. By setting a simple, easy-to-operate, and convenient unlocking and locking mechanism, the mounting block can be quickly unlocked and locked, thereby improving the user's work efficiency when assembling and disassembling the self-locking device.

[0014] Optionally, the mounting block has mounting holes at both ends that communicate with the corresponding mounting slots. The control mechanism includes a control block that slides vertically through each mounting hole and a spring that is disposed in each mounting slot. The control block is connected to the corresponding locking plate, and the spring can push the corresponding locking plate to move toward one side of the corresponding control block.

[0015] By adopting the above technical solution, when the two control blocks are pressed and moved towards each other, the two locking plates move closer together and disengage from their respective locking slots. When the two control blocks are released, the two locking plates move away from each other under the elastic force of their respective springs and engage with their respective locking slots. By setting up a simple and convenient control mechanism, the rapid movement of the two locking plates is achieved, thereby enabling quick unlocking and locking of the mounting blocks, further improving the user's work efficiency when assembling and disassembling the self-locking device.

[0016] Optionally, the mounting block has an internal mounting cavity that communicates with the two mounting slots respectively. A support shaft is horizontally rotatably mounted in the mounting cavity. A gear is mounted on the support shaft. A rack is mounted on each of the two locking plates. The two racks are distributed on both sides of the gear and mesh with the gear respectively. The mounting block is provided with a limiting mechanism that can restrict the rotation of the support shaft.

[0017] By adopting the above technical solution, through the cooperation of gears and two racks, when the two locking plates move away from each other and are respectively engaged in their corresponding locking slots, the limiting mechanism limits the support shaft, thereby limiting the gear along its circumferential direction. At this time, this design can also limit the vertical direction of the two racks, and thus limit the vertical direction of the two locking plates and the two control blocks. This design ensures that the locking plates are stably engaged in their corresponding locking slots, reducing the risk of accidental unlocking of the mounting blocks due to user accidental contact with the control blocks, and further improving the stability of the self-locking device.

[0018] Optionally, one end of the support shaft extends to the outside of the mounting block, and a support groove is provided at the end of the support shaft outside the mounting block. A support block is horizontally slidably inserted in the support groove. A handwheel is provided on the support block. The circumferential sidewall of the support block is polygonal. The circumferential inner wall of the support groove fits with the circumferential sidewall of the support block. The limiting mechanism is used to limit the rotation of the handwheel.

[0019] By adopting the above technical solution, the support block is driven by a handwheel to rotate the support shaft, and then the support shaft drives the gear to control the two racks to move closer or further apart, thereby allowing the two locking plates to move closer or further apart. This design allows the user to simultaneously unlock or lock the two locking mechanisms with one hand. When the user is holding an item with one hand, the user can unlock the mounting block with the other hand, which improves both ease of use and practicality.

[0020] Optionally, the limiting mechanism includes a toothed ring disposed on the handwheel and a toothed groove formed on the mounting block, wherein the toothed ring can be engaged in the toothed groove.

[0021] By adopting the above technical solution, the support shaft can be locked or unlocked along its circumferential direction when the toothed ring engages with or disengages from the toothed groove. By setting a simple, convenient, and easy-to-unlock limit mechanism, the support shaft and locking plate, among other components, can be quickly unlocked and locked, further improving the user's work efficiency when assembling and disassembling the self-locking device.

[0022] Optionally, a mounting ring is provided at one end of the support block near the bottom of the support groove, and a limiting ring is provided at the opening of the support groove to block the mounting ring.

[0023] By adopting the above technical solution, the maximum sliding distance of the support block is limited through the cooperation of the mounting ring and the limiting ring, thus preventing the support block from falling out of the support groove and improving the stability of use.

[0024] Optionally, the support block is made of iron material, and the bottom of the support groove is provided with a permanent magnet for the support block to abut against.

[0025] By adopting the above technical solution, the support block is attracted and fixed by a permanent magnet, so that the toothed ring can be stably locked into the tooth groove, thereby improving the locking stability of components such as the support shaft, and thus improving the stability of the self-locking device.

[0026] Optionally, the mounting block is provided with a first magnet and a second magnet, and the mounting bracket is provided with a third magnet. The third magnet repels the first magnet and attracts the second magnet. When the mounting block abuts against the receiving block, the third magnet is located between the first magnet and the second magnet. When the mounting block separates from the receiving block, the third magnet is located on the side of the first magnet away from the second magnet.

[0027] By adopting the above technical solution, when the mounting block and the receiving block abut, the third magnet is located between the first magnet and the second magnet. At this time, the first magnet provides a certain repulsive force to the third magnet, and the second magnet and the third magnet provide a certain attractive force, so that the mounting block tends to move towards the receiving block. When the mounting block and the receiving block separate, the third magnet passes over the first magnet. At this time, the first magnet provides a certain repulsive force to the third magnet, so that the mounting block tends to move away from the receiving block, thereby enabling the mounting block and the receiving block to remain in a stable open state. This design allows the mounting block to automatically abut against the receiving block under the action of repulsive and attractive forces when the mounting block and the receiving block are slightly separated, preventing the wire rope from coming out of the gap between the mounting block and the receiving block and ensuring personnel safety.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] By utilizing the clearance groove and the receiving groove to form a rope hole, when the wire rope passes through the rope hole and the mounting block and the receiving block abut, the inner wall of the clearance groove and the inner wall of the receiving groove can wrap around the wire rope, thereby reducing the risk of the wire rope coming off the self-locking device and thus improving the safety of the self-locking device.

[0030] By setting a simple, easy-to-operate, and convenient unlocking and locking mechanism, the installation block can be quickly unlocked and locked, thereby improving the user's work efficiency when disassembling and assembling the self-locking device.

[0031] The support shaft is rotated by driving the support block with a handwheel. Then, the support shaft drives the gear to control the two racks and the two locking blocks to move closer or further apart. This design allows the user to unlock or lock the two locking mechanisms simultaneously with one hand, which improves both ease of use and practicality. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the structure after the receiving block and the mounting block are separated in an embodiment of this application.

[0034] Figure 3 This is a schematic diagram of the mounting bracket in an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of the internal structure of the mounting block in an embodiment of this application.

[0036] Figure 5 yes Figure 4 An enlarged schematic diagram of region A in the middle.

[0037] Figure 6 This is a partial cross-sectional view of the mounting block in an embodiment of this application.

[0038] Figure 7 yes Figure 6 Enlarged schematic diagram of region B in the middle.

[0039] Figure 8 yes Figure 4 A magnified view of region C in the middle.

[0040] Figure 9 This is a partial cross-sectional view of an embodiment of this application.

[0041] Figure 10 yes Figure 9 A magnified diagram of region D in the middle.

[0042] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 2. Mounting bracket; 3. Receiving block; 4. Leaving groove; 5. Mounting shaft; 6. Handle; 7. Self-locking block; 8. Assembly hole; 9. Torsion spring; 10. Clamping groove; 11. Hand grip groove; 12. Mounting block; 13. Receiving groove; 14. Rope hole; 15. Locking mechanism; 151. Locking plate; 152. Guide groove; 153. Locking groove; 16. Mounting groove; 17. Control mechanism; 171. Control block; 172. Spring; 18. Mounting hole; 19. Mounting cavity; 20. Support shaft; 21. Gear; 22. Rack; 23. Support groove; 24. Support block; 25. Handwheel; 26. Mounting ring; 27. Limiting ring; 28. Limiting mechanism; 281. Gear ring; 282. Gear groove; 29. ​​Permanent magnet; 30. First magnet; 31. Second magnet; 32. Third magnet. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0044] This application discloses a self-locking device for wire ropes. (Refer to...) Figure 1 and Figure 2 The wire rope self-locking device includes a vertically arranged mounting plate 1. A mounting frame 2 is integrally formed on one side surface of the mounting plate 1, and a receiving block 3 is integrally formed on one side wall of the mounting plate 1. A clearance groove 4 is provided on the side of the receiving block 3 near the mounting frame 2. The clearance groove 4 has a semi-circular cross-section and allows the wire rope to enter.

[0045] Reference Figure 2 and Figure 3 A mounting shaft 5 is horizontally rotatably connected inside the mounting bracket 2. A handle 6 is fixedly connected to the mounting shaft 5. A self-locking block 7 is fixedly connected to the lower end of the handle 6 near the receiving block 3. An assembly hole 8 is provided on the side of the handle 6 away from the receiving block 3 for the safety rope to pass through. At the same time, a torsion spring 9 is provided between the mounting shaft 5 and the handle 6. The torsion spring 9 can drive the handle 6 to flip upward to realize the reset of the handle 6.

[0046] When the user passes the safety rope through the mounting hole 8 and connects it to the handle 6, if the user falls, the handle 6 will rotate downwards under the pull of the safety rope. Then, the self-locking block 7 will rotate upwards, pressing the wire rope against the inner wall of the relief groove 4. At this point, the friction between the self-locking block 7 and the wire rope will secure the self-locking device to the wire rope, thus providing fall protection for the user.

[0047] Reference Figure 2 and Figure 3 The self-locking block 7 has a clamping groove 10 on the side near the receiving block 3 for the steel wire rope to enter, so as to increase the contact area between the self-locking block 7 and the steel wire rope. At the same time, the receiving block 3 has several hand slots 11 on the side away from the mounting frame 2 for the user's fingers to insert, so as to facilitate the user's grip on the self-locking device.

[0048] Reference Figure 2 and Figure 3 Mounting bracket 2 has a horizontally slidable mounting block 12 that abuts against receiving block 3. The side wall of mounting block 12 near receiving block 3 has a receiving groove 13 with a semi-circular cross-section for the steel wire rope to enter. Simultaneously, when mounting block 12 abuts against receiving block 3, clearance groove 4 and receiving groove 13 form a rope hole 14 for the steel wire rope to pass through. When the steel wire rope is inserted into rope hole 14, the inner walls of clearance groove 4 and receiving groove 13 can encircle the steel wire rope, reducing the risk of the steel wire rope disengaging from the self-locking device.

[0049] Reference Figure 4 and Figure 5 Two locking mechanisms 15 are provided between the mounting plate 1 and the mounting block 12, and the two locking mechanisms 15 are symmetrically arranged at both ends of the mounting plate 1. When both locking mechanisms 15 are closed at the same time, the mounting block 12 is locked to the mounting plate 1. When both locking mechanisms 15 are opened at the same time, the mounting block 12 can be unlocked from the mounting plate 1, so as to reduce the risk of the mounting block 12 being unlocked at will due to the user accidentally opening the locking mechanism 15.

[0050] Reference Figure 4 and Figure 5Mounting blocks 12 have mounting grooves 16 at both ends near the mounting bracket 2. The locking mechanism 15 includes a locking plate 151 that is vertically slidably connected in each mounting groove 16. Mounting plates 1 have elongated guide grooves 152 at both ends near the mounting blocks 12. The locking plate 151 extends into the corresponding guide groove 152 at one end near the mounting plate 1, and the locking plate 151 can slide horizontally within the corresponding guide groove 152.

[0051] Reference Figure 5 and Figure 6 The upper inner wall of the upper guide groove 152 and the lower inner wall of the lower guide groove 152 are respectively provided with locking grooves 153, and the locking grooves 153 are for the corresponding locking plates 151 to be inserted into. At the same time, the mounting block 12 is provided with two control mechanisms 17 that can control the vertical movement of the corresponding locking plates 151 respectively.

[0052] When the two control mechanisms 17 control the movement of the corresponding locking plates 151 respectively, and cause the two locking plates 151 to move toward each other or away from each other, the mounting block 12 can be unlocked or locked when the locking plate 151 disengages from the corresponding locking groove 153 or is inserted into the corresponding locking groove 153.

[0053] Reference Figure 5 and Figure 6 The mounting block 12 has vertically formed mounting holes 18 at both ends, each communicating with a corresponding mounting groove 16. The control mechanism 17 includes a control block 171 that slides vertically through each mounting hole 18, with one end of each control block 171 close to the other fixedly connected to a corresponding locking plate 151. When the two control blocks 171 approach each other, the two locking plates 151 can approach each other and disengage from their respective locking grooves 153, thereby unlocking the mounting block 12.

[0054] Reference Figure 5 and Figure 6 Each mounting slot 16 is equipped with a spring 172, with two springs 172 located between two locking plates 151. The ends of the two springs 172 that are far apart are fixedly connected to their respective locking plates 151, while the ends that are close together are fixedly connected to the inner wall of their respective mounting slots 16. The springs 172 can push the corresponding locking plates 151 towards one side of the corresponding control block 171. When the two control blocks 171 are released, the two locking plates 151, under the elastic force of their respective springs 172, move away from each other and engage with their respective locking slots 153, thereby unlocking the mounting block 12.

[0055] Reference Figure 6 and Figure 7A first magnet 30 and a second magnet 31 are fixedly embedded on the side of the mounting block 12 near the mounting frame 2, and a third magnet 32 ​​is fixedly embedded on the side of the mounting frame 2 near the mounting block 12. The third magnet 32 ​​repels the first magnet 30 and attracts the second magnet 31.

[0056] When the mounting block 12 comes into contact with the receiving block 3, the third magnet 32 ​​is located between the first magnet 30 and the second magnet 31. At this time, the first magnet 30 provides a certain repulsive force to the third magnet 32, and the second magnet 31 and the third magnet 32 ​​provide a certain attractive force, causing the mounting block 12 to tend to move toward the receiving block 3.

[0057] When the mounting block 12 and the receiving block 3 are slightly separated, the mounting block 12 can automatically abut against the receiving block 3 under the combined action of the repulsive force of the first magnet 30 and the attractive force of the second magnet 31, preventing the wire rope from coming out of the gap between the mounting block 12 and the receiving block 3, thereby ensuring personnel safety.

[0058] When the mounting block 12 separates from the receiving block 3, the third magnet 32 ​​passes over the first magnet 30, and the first magnet 30 is positioned between the second magnet 31 and the third magnet 32. At this time, the first magnet 30 provides a certain repulsive force to the third magnet 32, and causes the mounting block 12 to tend to move away from the receiving block 3, so that the mounting block 12 and the receiving block 3 can be stably kept in the open state.

[0059] Reference Figure 4 and Figure 8 The mounting block 12 has an internal mounting cavity 19, and both ends of the mounting cavity 19 are connected to corresponding mounting slots 16. A support shaft 20 is horizontally rotatably connected inside the mounting cavity 19, and a gear 21 is fixedly sleeved on the support shaft 20. Two locking plates 151 are fixedly connected to racks 22 located in the mounting cavity 19 at their close ends. The two racks 22 are symmetrically distributed on both sides of the gear 21, and the two racks 22 mesh with the gear 21 respectively.

[0060] When the support shaft 20 drives the gear 21 to rotate, the gear 21 can drive the two racks 22 to move the corresponding locking plates 151 vertically. Then the two locking plates 151 move closer or further away from each other, so that the two locking plates 151 disengage from the corresponding locking grooves 153 or are inserted into the corresponding locking grooves 153, thereby unlocking the mounting block 12.

[0061] Reference Figure 9 and Figure 10The end of the support shaft 20 furthest from the mounting bracket 2 extends through to the outside of the mounting block 12 and is rotatably connected to the mounting block 12. A support groove 23 is formed at the end of the support shaft 20 outside the mounting block 12, and a support block 24 slides horizontally through the support groove 23. The circumferential sidewall of the support block 24 is polygonal, and the circumferential inner wall of the support groove 23 fits into the circumferential sidewall of the support block 24, allowing the support block 24 to drive the support shaft 20 to rotate. Simultaneously, a handwheel 25 is fixedly connected to the end of the support block 24 outside the support groove 23, facilitating the user's rotation of the support block 24.

[0062] Reference Figure 9 and Figure 10 An installation ring 26 is fixedly sleeved at one end of the support block 24 near the bottom of the support groove 23. A limit ring 27 is fixedly connected at the opening of the support groove 23 along its circumferential direction, and the limit ring 27 can block the installation ring 26 to limit the maximum sliding distance of the support block 24.

[0063] Reference Figure 8 and Figure 10 A limit mechanism 28 is provided between the mounting block 12 and the handwheel 25, and the limit mechanism 28 can restrict the rotation of the handwheel 25.

[0064] When the limiting mechanism 28 is activated, the handwheel 25 cannot drive the support block 24, support shaft 20, and gear 21 to rotate, thus preventing the two racks 22 from moving vertically, thereby limiting the vertical movement of the two locking plates 151 and the two control blocks 171. This design reduces the risk of the mounting block 12 being unlocked due to accidental touch of the control block 171 by the user, thereby improving the stability of the self-locking device.

[0065] Reference Figure 10 The limiting mechanism 28 includes a toothed ring 281 fixedly connected to the side wall of the handwheel 25. The mounting block 12 has a toothed groove 282 on the side near the handwheel 25 for the toothed ring 281 to engage. When the toothed ring 281 engages with or disengages from the toothed groove 282, the support shaft 20 can be locked or unlocked along its circumferential direction.

[0066] Reference Figure 10 The support block 24 is made of iron, and a permanent magnet 29 is fixedly connected to the bottom of the support groove 23 for the support block 24 to abut against. When the toothed ring 281 is inserted into the toothed groove 282, the permanent magnet 29 abuts against the support block 24, and the permanent magnet 29 attracts and fixes the support block 24 to reduce the risk of the toothed ring 281 coming out of the toothed groove 282, thereby improving the locking stability.

[0067] The implementation principle of a self-locking device for wire rope according to an embodiment of this application is as follows: When it is necessary to disassemble the self-locking device from the wire rope, pulling the handwheel 25 drives the support block 24 and the toothed ring 281 to move, causing the toothed ring 281 to disengage from the toothed groove 282. Then, pressing the two control blocks 171 respectively drives the corresponding locking plates 151 to move closer to each other, and then the two locking plates 151 disengage from their respective locking grooves 153 and enter their respective guide grooves 152. Then, pulling the mounting block 12 drives the locking plates 151 and other components to move away from the receiving block 3, causing the locking plates 151 to slide in their respective guide grooves 152. Subsequently, the user can pull the wire rope out from the mounting block 12 and the receiving block 3 to disassemble the self-locking device from the wire rope.

[0068] When installing the self-locking device and the wire rope, the wire rope is passed through the mounting block 12 and the receiving block 3, and then enters the clearance groove 4. Next, the mounting block 12 is pushed, causing the locking plate 151 and other components to move towards the receiving block 3, so that the mounting block 12 abuts against the receiving block 3. At this time, the wire rope passes through the rope hole 14 formed by the clearance groove 4 and the receiving groove 13. Then, the two control blocks 171 are released, and under the action of the corresponding springs 172, the two control blocks 171 move away from each other, causing the two locking plates 151 to respectively engage in the corresponding locking grooves 153. Then, the handwheel 25 is pushed, causing the support block 24 and the toothed ring 281 to move, causing the toothed ring 281 to engage in the toothed groove 282. Simultaneously, the permanent magnet 29 attracts and fixes the support block 24, thus achieving the connection between the wire rope and the self-locking device.

[0069] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-locking device for wire ropes, characterized in that: The system includes an installation plate (1), on which a receiving block (3) and an installation frame (2) are provided. The receiving block (3) has a relief groove (4) for the wire rope to pass through. The installation frame (2) has a horizontally rotatable installation shaft (5) and a handle (6) on the installation shaft (5). The handle (6) has a self-locking block (7) on its side wall. When the handle (6) drives the self-locking block (7) to rotate, the self-locking block (7) can press the wire rope against the inner wall of the relief groove (4). The installation frame (2) has a sliding installation block (12) that can abut against the receiving block (3). The installation block (12) has a receiving groove (13) for the wire rope to pass through. The relief groove (4) and the receiving groove (13) can form a rope hole (14) for the wire rope to pass through. The installation plate (1) and the installation block (12) are connected by a locking mechanism (15). The locking mechanism (15) is provided in two parts. The mounting block (12) has mounting grooves (16) at both ends of its sidewall. The locking mechanism (15) includes a locking plate (151) that is vertically slidably disposed in each mounting groove (16) and guide grooves (152) that are respectively opened at both ends of the sidewall of the mounting plate (1). The locking plate (151) extends into the corresponding guide groove (152) and can slide horizontally in the corresponding guide groove (152). The upper inner wall of the upper guide groove (152) and the lower inner wall of the lower guide groove (152) are respectively provided with locking grooves (153) for the corresponding locking plate (151) to be inserted. The mounting block (12) is provided with two control mechanisms (17) that can control the vertical movement of the corresponding locking plate (151). The mounting block (12) has an internal mounting cavity (19) that communicates with the two mounting slots (16) respectively. A support shaft (20) is horizontally rotatably mounted in the mounting cavity (19). A gear (21) is mounted on the support shaft (20). A rack (22) is mounted on each of the two locking plates (151). The two racks (22) are distributed on both sides of the gear (21) and mesh with the gear (21) respectively. The mounting block (12) is provided with a limiting mechanism (28) that can restrict the rotation of the support shaft (20). The mounting block (12) is provided with a first magnet (30) and a second magnet (31), and the mounting bracket (2) is provided with a third magnet (32). The third magnet (32) repels the first magnet (30) and attracts the second magnet (31). When the mounting block (12) abuts against the receiving block (3), the third magnet (32) is located between the first magnet (30) and the second magnet (31). When the mounting block (12) is separated from the receiving block (3), the third magnet (32) is located on the side of the first magnet (30) away from the second magnet (31).

2. The self-locking device for wire rope according to claim 1, characterized in that: The two locking mechanisms (15) are symmetrically distributed at both ends of the mounting plate (1) and can jointly fix the mounting block (12) to the mounting frame (2).

3. The self-locking device for wire rope according to claim 1, characterized in that: The mounting block (12) has mounting holes (18) at both ends that communicate with the corresponding mounting grooves (16). The control mechanism (17) includes a control block (171) that slides vertically through each mounting hole (18) and a spring (172) that is disposed in each mounting groove (16). The control block (171) is connected to the corresponding locking plate (151). The spring (172) can push the corresponding locking plate (151) to move toward the side of the corresponding control block (171).

4. The self-locking device for wire rope according to claim 1, characterized in that: One end of the support shaft (20) extends to the outside of the mounting block (12). The end of the support shaft (20) located outside the mounting block (12) has a support groove (23). A support block (24) slides horizontally through the support groove (23). A handwheel (25) is provided on the support block (24). The circumferential sidewall of the support block (24) is polygonal. The circumferential inner wall of the support groove (23) fits with the circumferential sidewall of the support block (24). The limiting mechanism (28) is used to limit the rotation of the handwheel (25).

5. A self-locking device for wire rope according to claim 4, characterized in that: The limiting mechanism (28) includes a toothed ring (281) disposed on the handwheel (25) and a toothed groove (282) opened on the mounting block (12), wherein the toothed ring (281) can be inserted into the toothed groove (282).

6. A self-locking device for wire rope according to claim 4, characterized in that: The support block (24) is provided with an installation ring (26) at one end near the bottom of the support groove (23), and a limiting ring (27) is provided at the opening of the support groove (23) to block the installation ring (26).

7. A self-locking device for wire rope according to claim 4, characterized in that: The support block (24) is made of iron material, and the bottom of the support groove (23) is provided with a permanent magnet (29) for the support block (24) to abut against.

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