Climbing safety hook

Abstract

The invention provides a climbing safety hook, and belongs to the technical field of electric power operation tools, the climbing safety hook specifically comprises a hook, a holding handle and an auxiliary handle, the hook is matched with a hook tongue, the hook tongue and the hook tongue are matched to define a lock catch area, and the hook tongue can turn over; the holding handle is provided with a telescopic structure, the output end is in butt joint with the hook, and the holding handle can drive the hook to move when stretching out and drawing back. One end of the auxiliary handle is connected with the coupler knuckle, and the other end is hinged with the holding handle; when the auxiliary handle is turned over downwards under the action force, the coupler knuckle can be turned over upwards, and the lock catch area is opened; compared with the prior art, the driving handle can be lengthened, so that an operator can finish opening and closing of the hook tongue by applying acting force to the contact handle and transmitting the acting force through the pull arm and the connecting piece, opening and closing of the hook are achieved, it is guaranteed that the operator can control opening and closing of the spring bolt more easily in the air, stooping is reduced, and the working efficiency is improved. The safety of high-altitude suspension of operators is improved, and the accident rate is reduced.

Description

Technical Field

[0001] This invention belongs to the field of power operation tools technology, specifically relating to a climbing safety hook. Background Technology

[0002] In the construction, inspection, and maintenance of power transmission lines, workers need to climb towers tens or even hundreds of meters high. To ensure safety, climbers must use fall arrest devices. Currently, advanced double-hook alternating fall arresters have gradually replaced traditional single-hook devices. These devices use two safety hooks that alternately engage, ensuring that at least one hook is reliably secured to the tower's angle steel during the climb, eliminating blind spots and significantly improving operational safety.

[0003] However, in practical applications, it has been found that even with the use of double-hook protection, climbing operations still face many operational difficulties and challenges, mainly due to limitations in the operating distance. For example, high-altitude anchoring is difficult: The complex structure of steel towers often places the angle steel crossbars directly above the climber's body. When attaching the safety hook to a high angle steel section, the fixed and short handle length of existing double hooks often requires workers to strain their tiptoes, stretch their arms, or even make small jumps to reach the target anchor point. This posture is not only extremely strenuous but also severely disrupts balance and stability, introducing new risks in high-altitude environments. Summary of the Invention

[0004] The purpose of this invention is to provide a climbing safety hook that allows the handle to be extended, thereby adjusting the position of the hook and increasing the adaptable distance.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is a climbing safety hook, comprising a hook, a grip handle, and an auxiliary handle. The hook is fitted with a hook tongue, and the two work together to form a locking area. The hook tongue is capable of flipping. The grip handle has a telescopic structure and its output end is connected to the hook. When the grip handle is extended or retracted, it can drive the hook to move. One end of the auxiliary handle is connected to the hook tongue, and the other end is hinged to the grip handle. When the auxiliary handle is subjected to a force and flips downward, it can cause the hook tongue to flip upward, thereby opening the locking area.

[0006] Furthermore, the auxiliary handle includes a connector, a contact handle, and a pull arm, with the connector and contact handle both hinged to the grip handle; the two ends of the pull arm are respectively hinged to the connector and the contact handle. The connector is coupled to the hook tongue, and the hook tongue moves when the connector is flipped.

[0007] Furthermore, the pull arm includes a lower arm body and an upper arm body, with the lower arm body hinged to the contact handle; the upper arm body is slidably connected to the lower arm body and its upper end is hinged to the connecting member.

[0008] Furthermore, the grip handle includes an extension handle, a drive handle, and a drive assembly. The extension handle is hinged to the connector; the drive handle is slidably connected to the extension handle, and the contact handle is hinged to the drive handle; the drive assembly is mounted on the drive handle and connected to the extension handle, and is capable of controlling the movement of the extension handle.

[0009] Furthermore, the extension handle is equipped with a horizontal support rod, which supports the connecting parts, so that when the extension handle moves, it can drive the upper arm to move.

[0010] Furthermore, the lateral strut includes a bottom cylinder, a top rod, and a compression return spring. The bottom cylinder is mounted on the extension handle; the top rod is connected to the bottom cylinder; and the compression return spring is located inside the bottom cylinder and supports the top rod.

[0011] Furthermore, a locking component is provided inside the pull arm, which can lock the length of the pull arm.

[0012] Furthermore, the clamping assembly includes a clamping frame, a clamping arm, and a pull rope. The clamping frame is abutted to the lower end of the upper arm body; the clamping arm is located above the clamping frame and is hinged to the clamping frame; the pull rope is connected to the inner end of the clamping arm and can apply an upward pulling force to the clamping arm, causing the clamping arm to flip.

[0013] Furthermore, the upper arm has a hollow channel, allowing the pull rope to pass through it. A locking transmission component is connected to the upper end of the upper arm, and the pull rope is connected to the locking transmission component. When the upper arm swings, the locking transmission component applies force to the pull rope.

[0014] Furthermore, the locking transmission component includes a central disc and a limiting tube. The central disc is located on the extension line of the upper arm body; the limiting tube extends in an arc shape and is fixed on the circumferential surface of the central disc. The pull rope can pass through the limiting tube. When the limiting tube moves in an arc trajectory, the pull rope applies a force to the locking arm. Compared with the prior art, the beneficial effects of this invention are: it can extend the drive handle, allowing the operator to apply force to the contact handle, and transmit the force through the pull arm and connector to open and close the hook, thereby realizing the opening and closing of the hook. This ensures that the operator can more easily control the opening and closing of the locking tongue at high altitudes, reducing bending over, improving the safety of the operator suspended at high altitudes, and reducing the accident rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention; Figure 2 This is a schematic diagram of the main view structure of the second embodiment of the present invention; Figure 3 This is a schematic diagram of the grip handle structure according to the second embodiment of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the pull arm according to the second embodiment of the present invention; Figure 5 This is a schematic diagram showing the connection between the central disk and the limiting tube in the second embodiment of the present invention; Figure 6 This is a schematic diagram of the tight-fitting component structure according to the second embodiment of the present invention; Figure 7 This is a schematic diagram of the main structure of the third embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of the connector of the present invention; Figure 9 This is a schematic cross-sectional view of the connector structure of the present invention; Among them, 1-hook, 2-hook tongue, 3-contact handle, 4-connector, 5-pull arm, 6-guide port, 7-drive handle, 8-extension handle, 9-fastening sleeve, 10-lower arm body, 11-upper arm body, 12-lateral support rod, 13-tightening frame, 14-tightening arm, 15-lifting rod, 16-pull rope, 17-center plate, 18-vertical support rod, 19-horizontal support rod, 20-limiting tube, 21-tension spring, 22-clamping space, 23-slanted guide plate, 24-guide groove, 25-reset torsion spring, 26-bottom tongue section, 27-intercepting section, 28-auxiliary extension rod, 29-flat stop bar, 30-grip handle. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0018] See Figure 1As shown, a climbing safety hook includes a hook 1 and a grip handle 30. The upper end of the hook 1 is connected to the upper end of the grip handle 30. A hook tongue 2 is provided on the hook 1. The lower end of the hook tongue 2 can be hinged to the hook 1. The hook tongue 2 can also be hinged to the grip handle 30. The free end of the hook tongue 2 can be coupled to the hook 1. At this time, the hook 1 and the hook tongue 2 form a locking area. An auxiliary handle is provided on the grip handle 30. The hook tongue 2 can be flipped through the auxiliary handle.

[0019] The auxiliary handle includes a contact handle 3 and a connector 4. Both the contact handle 3 and the connector 4 are hinged to the grip handle 30. A pull arm 5 is connected between the connector 4 and the contact handle 3. When the contact handle 3 rotates around the hinge point, the connector 4 can swing around the hinge point. This connector 4 is connected to the hook tongue 2. When the connector 4 swings downward, the hook tongue 2 can swing upward, so that the locking area forms a downward opening. In order to enable the hook tongue 2 to swing upward, a guide pin is provided on the hook tongue 2. The guide pin is close to the lower end of the hook tongue 2. A guide opening 6 is provided on the connector 4. The guide opening 6 is arc-shaped. The guide pin passes through the guide opening 6. When the contact handle 3 swings downward, the connector 4 is driven to swing through the pull arm 5. At this time, the guide opening 6 also moves accordingly, so that the guide pin can move relative to the guide opening 6, thereby causing the hook tongue 2 to swing upward and flip, which facilitates the separation of the hook 1 from the tower body.

[0020] See Figures 2 to 6 As shown, based on the above embodiment, the grip handle 30 can also be structurally adjusted, as follows: The grip handle 30 includes two parts: a drive handle 7 and an extension handle 8. The extension handle 8 is connected to the hook 1, the connector 4 is hinged to the extension handle 8, and the contact handle 3 is hinged to the drive handle 7. The extension handle 8 and the drive handle 7 are movably connected. By controlling the extension handle 8 to move away from the drive handle 7, the distance between the hook 1 and the drive handle 7 can be adjusted, thereby achieving the effect of the extension handle 8, making it easier for climbers to connect the hook 1 to the tower. The drive handle 7 is provided with a sliding groove, which extends downward from the upper end of the drive handle 7, allowing the lower end of the extension handle 8 to be inserted into the sliding groove. A limiting linear groove is provided in the sliding groove, which extends along the length of the sliding groove. A limiting protrusion is provided on the extension handle 8, which fits into the linear groove. When the extension handle 8 is connected to the drive handle 7, a fastening sleeve 9 can be connected to the upper end of the drive handle 7. The fastening sleeve 9 can block the limiting linear groove in the drive handle 7, preventing the limiting protrusion on the extension handle 8 from separating from the limiting linear groove, thus limiting the maximum displacement distance of the extension handle 8. A drive component is provided on the drive handle 7, and the drive component is connected to the extension handle 8. The drive component can control the movement of the extension handle 8. The driver component has at least two of the following implementations: The first type of drive assembly includes a telescopic electric actuator, which is installed in the sliding groove of the drive handle 7. The output end of the electric actuator is connected to the lower end of the extension handle 8. When the electric actuator extends or retracts, it can drive the extension handle 8 to move. A switch for controlling the operation of the electric actuator is provided on the drive handle 7. It is a push-button switch. The switch can be pressed directly or a force can be applied to the switch through the contact handle 3, so that the electric actuator can work. The second type of drive component includes a drive motor, which is a micro motor. Its output shaft is connected to a drive gear. A notch is provided on the drive handle 7, which is connected to a sliding groove. At the same time, a toothed groove is provided on the edge of the extension handle 8. After the drive gear passes through the notch, it meshes with the toothed groove on the extension handle 8. When the drive gear rotates, it can drive the extension handle 8 to move linearly. According to the change of the rotation direction of the drive gear, the movement direction of the extension handle 8 can be changed. When the drive motor stops working, the extension handle 8 also stops moving. Both of the above structures enable the extension handle 8 and the drive handle 7 to move relative to each other, changing the straight-line distance between the drive handle 7 and the hook 1, thereby making it easier for climbers to connect the hook 1 to a suitable position on the tower. The aforementioned pull arm 5 is also a telescopic structure. The extension and retraction of the pull arm 5 are synchronized with the extension and retraction of the grip handle 30. The pull arm 5 includes a lower arm body 10 and an upper arm body 11. The lower arm body 10 and the upper arm body 11 are slidably connected. For example, a channel is provided on the lower arm body 10, extending downward from the upper end of the lower arm body 10. The upper arm body 11 is inserted into the channel. The lower end of the lower arm body 10 is hinged to the contact handle 3, while the upper arm body 11 is hinged to the connecting member 4. A retractable transverse support rod 12 is provided on the extension handle 8. The free end of the transverse support rod 12 abuts against the connecting member 4, keeping the connecting member 4 in an inclined state. That is, the transverse support rod 12 needs to provide a certain support for the connecting member 4. Since the transverse support rod 12 can retract, the transverse support rod 12 mainly includes a bottom cylinder and a top rod. The top rod extends from the bottom cylinder... The top of the body is inserted, and a compression return spring is installed in the bottom cylinder. This compression return spring is connected to the top rod. When the connecting piece 4 applies a force to the top rod, and this force can deform the compression return spring, the top rod will be able to move into the bottom cylinder. At this time, the transverse support rod 12 is contracted, so as not to interfere with the downward flipping of the connecting piece 4. However, since the connecting piece 4 can flip downward, it is only possible if it is subjected to sufficient force. Therefore, when no force is applied to the connecting piece 4 through the contact handle 3, the connecting piece 4 is supported by the transverse support rod 12. At this time, if the extension handle is moved away from the drive handle 7, the connecting piece 4 will not flip. During this process, the upper arm 11 can be moved, causing the upper arm 11 to move away from the lower arm 10, thereby increasing the length of the pull arm 5.

[0021] When the extension handle is moved to the maximum distance by controlling the drive component, the upper arm 11 also moves to the maximum distance. That is, the pull arm 5 reaches its maximum length at this time, and it is no longer possible to increase the length of the pull arm 5 by pulling the upper arm 11. Then, by applying force to the contact handle 3, the contact handle 3 is made to flip and swing downward. Since the connector 4 is hinged to the extension handle 8, the contact handle 3 is hinged to the drive handle 7, and the two ends of the pull arm 5 are respectively hinged to the connector 4 and the contact handle 3, the shape of the area enclosed by the connector 4, the contact handle 3, the pull arm 5 and the grip handle 30 is a parallelogram. Thus, when the contact handle 3 flips and swings downward, the pull arm 5 can drive the connector 4 to flip and swing downward, thereby causing the hook tongue 2 to flip upward. However, when the drive component controls the extension handle to move, but does not reach the maximum moving distance, the upper arm 11 also does not move to the maximum distance. That is, the pull arm 5 still has room to continue to extend. If the contact handle 3 is flipped downwards and swung at this time, a certain pulling force will be applied to the pull arm 5. Since the pull arm 5 can continue to stretch at this time, the pull arm 5 will be extended when the contact handle 3 is flipped downwards, which will affect the flipping of the connector 4. Therefore, a locking component is provided inside the aforementioned pull arm 5. The locking component can lock the length of the pull arm 5, that is, when the locking component is working, the upper arm body 11 and the lower arm body 10 cannot move relative to each other.

[0022] Specifically, the clamping assembly includes a clamping frame 13, which is connected to the lower end of the upper arm body 11. The clamping frame 13 is a U-shaped frame and is connected to the upper arm body 11. Two clamping arms 14 are connected to the clamping frame 13. The two clamping arms 14 are symmetrically arranged and each clamping arm 14 is hinged to the clamping frame 13. Both clamping arms 14 are located above the clamping frame 13. When the inner end of the clamping arm 14 is subjected to an upward force, the clamping arm 14 can be flipped so that the outer end of the clamping arm 14 abuts against the lower arm body 10. At this time, the upper arm body 11 and the lower arm body 10 are connected, and the overall length of the pull arm 5 is not easily changed. It should be noted that the upper arm body 11 is a tube with a hollow channel. A hanger 15 is connected to the lower end of the upper arm body 11. The lower end of the hanger 15 is fixed to the clamping frame 13, so that there is a vertical gap between the clamping frame 13 and the upper arm body 11. The clamping arm 14 is located within this vertical gap.

[0023] The inner ends of the two aforementioned clamping arms 14 are each connected to a pull rope 16. The pull rope 16 passes through the inside of the upper arm body 11 and extends out from the upper end of the upper arm body 11. The upper arm body 11 is hinged to the connecting piece 4 via a central disc 17. The central disc 17 is located on the extension line of the upper arm body 11. A short shaft is fixed at the center of the central disc 17 and is connected to the connecting piece 4. There is a certain distance between the central disc 17 and the upper end of the upper arm body 11. Two vertical support rods 18 are connected between the central disc 17 and the upper arm body 11. The two vertical support rods 18 are parallel to each other. A horizontal support rod 19 is connected between the two vertical support rods 18. The middle position of the horizontal support rod 19 is... The device is provided with a longitudinal perforation, through which the pull rope 16 passes. An arc-shaped limiting tube 20 is provided on the central plate 17 and is fixed on the circumferential surface of the central plate 17. The pull rope 16 enters from the lower end of the limiting tube 20 and then extends from the upper end of the limiting tube 20, that is, the pull rope 16 passes through the limiting tube 20. At this time, the central plate 17 and the limiting tube 20 form a locking transmission component. The pull rope 16 is connected to the locking transmission component. A tension spring 21 is fixed to the upper end of the pull rope 16. The tension spring 21 is in a vertical state and the upper end of the tension spring 21 is fixed to the connecting member 4. Initially, the connector 4 is supported by the transverse strut 12, and is tilted downwards. The pull arm 5 is vertical, and the angle between the connector 4 and the pull arm 5 is obtuse. Since the contact handle 3 is parallel to the connector 4 and the pull arm 5 is parallel to the grip handle 30, applying force to the contact handle 3 reduces the angle between the contact handle 3 and the grip handle 30, thus increasing the angle between the connector 4 and the pull arm 5. At this point, the pull arm 5 and the connector 4 rotate relative to each other. Because the upper arm body 11 is connected to the connector 4 via the central disc 17, when the angle between them changes, the limiting tube 20 moves in an arc around the center of the central disc 17. The limiting tube 20... When the pull rope 16 applies force, the locking spring is stretched. The locking spring is a spring that generates a restoring force after being stretched. Therefore, under the action of the restoring force of the locking spring, the pull rope 16 moves upward. The pull rope 16 applies a lifting force to the locking arm 14, thereby enabling the locking arm 14 to flip. A rubber pad is fixed at the outer end of the locking arm 14. The rubber pad can make close contact with the inner wall of the lower arm body 10 to lock the length of the pull arm 5. As the contact handle 3 continues to swing, the pull arm 5 can apply a pulling force to the connector 4, causing the connector 4 to flip and swing downward. During this process, the transverse support rod 12 is compressed. After the contact handle 3 is released, the connector 4 is reset under the action of the restoring force of the transverse support rod 12.

[0024] See Figure 8 and Figure 9 As shown, the aforementioned connector 4 is a sheet metal part with a clamping space 22. The center plate 17, the clamping spring, and the transverse support rod 12 are all located in the clamping space 22. An inclined guide plate 23 is also provided in the clamping space 22. A guide groove 24 is provided on the inclined guide plate 23. The free end of the transverse support rod 12 is located in the guide groove 24. When the connector 4 flips and swings, the free end of the transverse support rod 12 moves in the guide groove 24.

[0025] To prevent damage to the pull rope 16 when the limit tube 20 moves, a sealing ring is fixed at the end of the limit tube 20. The sealing ring is formed by bending a cylindrical rod. A guide pulley can be installed on the sealing ring so that the pull rope 16 cooperates with the guide pulley, thereby reducing wear on the pull rope 16.

[0026] In addition, in this technical solution, the safety rope is connected to the extension handle 8, and a channel for the safety rope to pass through is provided on the drive handle 7. Several guide wheels are provided in the channel, and each guide wheel is provided with a groove. The groove of each guide wheel cooperates with the safety rope, and the guide wheel can rotate, so that the safety rope can move smoothly.

[0027] In this application, a return torsion spring 25 connects the hook tongue 2 and the hook 1. When the hook tongue 2 flips and swings, it has a restoring force. The swing of the hook tongue 2 is affected by the contact handle 3. Without applying force to the contact handle 3, the hook tongue 2 cannot swing upwards, which sometimes affects its use. Therefore, the hook tongue 2 can be configured as a two-section structure, comprising a bottom tongue section 26 and an intercepting section 27. The bottom tongue section 26 is hinged to the hook 1 and connected to the return torsion spring 25, while the intercepting section 27 is hinged to the bottom tongue section 26, and a torsion spring connects them. A blocking plate is also provided at the free end of the bottom tongue section 26. After the free ends of the segment 27 and the bottom tongue segment 26 are hinged, the intercepting segment 27 can be flipped. When the two are on the same straight line, the blocking plate contacts the intercepting segment 27, that is, the blocking plate restricts the flipping of the intercepting segment 27, preventing the intercepting segment 27 from flipping downward. Thus, in use, even if no force is applied to the contact handle 3, when the hook 1 is moved toward the railing of the iron tower, after the railing contacts the intercepting segment 27 of the hook tongue 2, as the hook 1 continues to move, the iron tower railing applies a reaction force to the intercepting segment 27 of the hook tongue 2, thereby causing the intercepting segment 27 of the hook tongue 2 to move upward, and finally connecting the hook 1 to the railing of the iron tower.

[0028] See Figures 2 to 7 As shown in Embodiment 3, based on the above structure, an auxiliary extension rod 28 can be provided at the bottom of the extension handle 8. The auxiliary extension rod 28 passes through the drive handle 7 and includes a main rod body in the shape of a U. A flat stop bar 29 is connected to the free end of the main rod body. When the grip handle 30 is in its shortest state, the flat stop bar 29 is located below the grip handle 30. At this time, the area enclosed by the auxiliary extension rod 28 has an upper opening. An extension groove is provided on the drive handle 7. When the extension handle 8 moves away from the drive handle 7, the free end of the flat stop bar 29 enters the extension groove. At this time, the area enclosed by the auxiliary extension rod 28 and the drive handle 7 is a closed loop area. In actual use, some tools or parts can be hung on the auxiliary extension rod 28 to increase the convenience of construction. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A climbing safety hook, characterized in that, include: The hook (1) is fitted with a hook tongue (2), and the two work together to form a locking area. The hook tongue (2) can be flipped. The handle (30) has a telescopic structure and its output end is connected to the hook (1). When the handle (30) is extended or retracted, it can drive the hook (1) to move. An auxiliary handle is hinged to the grip handle (30) and coupled to the hook tongue (2); When the auxiliary handle is flipped downwards, the hook tongue (2) can be flipped upwards, thus opening the locking area.

2. The climbing safety hook according to claim 1, characterized in that, The auxiliary handle includes: The connector (4) and the contact handle (3) are both hinged to the grip handle (30); The pull arm (5) is hinged at one end to the connector (4) and at the other end to the contact handle (3); The connector (4) is coupled to the hook tongue (2), and the hook tongue (2) moves when the connector (4) flips.

3. The climbing safety hook according to claim 2, characterized in that, The pull arm (5) includes: The lower arm (10) is hinged to the contact handle (3); The upper arm body (11) is slidably connected to the lower arm body (10) and its upper end is hinged to the connector (4); The connector (4) and the upper arm (11) can move simultaneously.

4. The climbing safety hook according to claim 3, characterized in that, The grip handle (30) includes: Extend the handle (8) and hinge it to the connector (4); The drive handle (7) is slidably connected to the extension handle (8), and the contact handle (3) is hinged to the drive handle (7); A drive assembly is mounted on the drive handle (7) and connected to the extension handle (8); When the drive component is working, it moves the connector (4) by extending the handle (8).

5. The climbing safety hook according to claim 4, characterized in that, The extension handle (8) is provided with a transverse support rod (12), which supports the connector (4) so ​​that when the extension handle (8) moves, it can drive the upper arm (11) to move.

6. The climbing safety hook according to claim 5, characterized in that, The transverse strut (12) includes: The bottom cylinder is mounted on the extension handle (8); The top rod connects to the bottom cylinder. A compression return spring is installed inside the bottom cylinder and supports the top rod.

7. The climbing safety hook according to claim 5, characterized in that, The pull arm (5) is provided with a locking component, which can lock the length of the pull arm (5).

8. The climbing safety hook according to claim 7, characterized in that, The clamping assembly includes: The clamping frame (13) is attached to the lower end of the upper arm body (11); The clamping arm (14) is located above the clamping frame (13) and is hinged to the clamping frame (13); The pull rope (16), connected to the inner end of the clamping arm (14), can apply an upward pulling force to the clamping arm (14) to cause the clamping arm (14) to flip.

9. The climbing safety hook according to claim 8, characterized in that, The upper arm body (11) has a hollow channel, allowing the pull rope (16) to pass through the upper arm body (11). The upper end of the upper arm body (11) is connected to a locking transmission component. The pull rope (16) is connected to the locking transmission component. When the upper arm body (11) swings, the locking transmission component applies force to the pull rope (16).

10. The climbing safety hook according to claim 9, characterized in that, The locking transmission component includes: The central disc (17) is located on the extension line of the upper arm body (11); The limiting tube (20) extends in an arc and is fixed on the circumferential surface of the central disc (17); the pull rope (16) can pass through the limiting tube (20), and when the limiting tube (20) moves in an arc trajectory, the pull rope (16) applies a force to the clamping arm (14).

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