A rope grab

Abstract

This utility model relates to a rope gripper, comprising: a base having a rope groove for a rope to pass through; and a locking assembly rotatably connected to the base; the locking assembly includes a locking end, and is configured such that the distance between the locking end and the bottom of the rope groove can be adjusted by rotating the locking assembly; wherein the locking assembly includes at least a locked state and a sliding state; in the locked state, the distance between the locking end and the bottom of the rope groove is less than the diameter of the rope, so that the rope gripper is fixed to the rope; in the sliding state, the distance between the locking end and the bottom of the rope groove is greater than the diameter of the rope, so that the rope gripper slides on the rope; the locking assembly is configured to be in the locked state at least when subjected to a downward force.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude work equipment technology, and in particular to a rope grabber. Background Technology

[0002] Currently, working at heights is widespread across various industries, especially in the wind power sector where such projects are numerous. Personnel safety is paramount and essential for working at heights. Both human error and environmental factors can lead to dangerous situations such as falls. Utility Model Content

[0003] Based on the above analysis, the present invention aims to provide a rope gripper to at least solve the above-mentioned problems.

[0004] The objective of this utility model is mainly achieved through the following technical solutions: This utility model provides a rope gripper, comprising: The base is equipped with a rope groove for ropes to pass through; A locking assembly is rotatably connected to the base; the locking assembly includes a locking end, and the locking assembly is configured such that the distance between the locking end and the bottom of the rope groove can be adjusted by rotating the locking assembly; The locking component includes at least a locked state and a sliding state; In the locked state, the distance between the locking end and the bottom of the rope groove is less than the diameter of the rope, so that the rope gripper can be fixed on the rope. In the sliding state, the distance between the locking end and the bottom of the rope groove is greater than the diameter of the rope, so that the rope gripper can slide on the rope; The locking component is configured to be locked at least when subjected to a downward force.

[0005] Furthermore, the base is provided with an assembly space, which is in communication with the rope groove and is located on one side of the rope groove, while the other side of the assembly space is open; The locking assembly is configured such that at least the locking end is located within the assembly space, and at least a portion of the locking assembly is located outside the assembly space; The surface of the locking end near the rope groove is a friction surface, and the friction surface is provided with anti-slip texture and / or anti-slip material.

[0006] Furthermore, the locking assembly has a mounting hole located on a portion outside the assembly space for connecting the rope gripper to a safety device worn by the user.

[0007] Furthermore, the rope gripper also includes an O-ring, through which the safety device is detachably connected to the mounting hole.

[0008] Furthermore, the locking assembly includes two locking ends, namely an upper locking end and a lower locking end, with the lower locking end located below the upper locking end.

[0009] Furthermore, the locking component includes: The upper locking plate assembly has an upper locking end at one end, and the upper locking end is rotatably connected to the base; The lower locking plate assembly has a lower locking stop end at one end and a mounting hole at the other end; the lower locking stop end is rotatably connected to the base. The connecting plate assembly is rotatably connected at both ends to the upper locking plate assembly and the lower locking plate assembly, respectively. The upper locking plate assembly and the lower locking plate assembly always remain parallel.

[0010] Furthermore, the upper locking plate assembly is rotatably connected to the base via a first pin. The lower locking plate assembly is rotatably connected to the base via a second pin. The connecting plate assembly is rotatably connected to the upper locking plate assembly and the lower locking plate assembly via a third pin and a fourth pin, respectively. The two ends of the first pin and the second pin are respectively fixedly connected to the two opposite side walls that constitute the assembly space; The connecting plate assembly includes two structurally identical connecting plates arranged opposite each other, namely a first connecting plate and a second connecting plate, and the two ends of the third pin and the fourth pin are fixedly connected to the first connecting plate and the second connecting plate, respectively.

[0011] Furthermore, the connecting plate assembly is provided with reinforcement holes so that the reinforcement rope can pass through the reinforcement holes to connect and reinforce the locking assembly with the O-ring buckle.

[0012] A torsion spring is provided between the lower locking plate assembly and the second pin, or / and, and a torsion spring is provided between the upper locking plate assembly and the first pin; The lower locking plate assembly includes a first lower locking plate, a second lower locking plate, and a third lower locking plate stacked sequentially. The middle second lower locking plate has a slot that communicates with the mounting hole. The slot extends from between the first and third lower locking plates to the mounting hole, and the edge of the slot surrounds the outer side of the edge of the mounting hole. A gasket is provided in the slot, and the gasket can slide within the slot. The gasket has a first state and a second state. In the first state, the gasket is located below the mounting hole and completely exposes the mounting hole. In the second state, the gasket is located inside the mounting hole and can completely cover the mounting hole.

[0013] Furthermore, the base includes a first substrate and a second substrate with identical structures; The first substrate includes a first L-shaped portion and a first groove portion. The first groove portion is connected to the end of the horizontal plate of the first L-shaped portion. The height of the horizontal plate of the first L-shaped portion is less than the height of the vertical plate of the first L-shaped portion. The structure of the second substrate is the same as that of the first substrate, including a second L-shaped portion and a second hook groove portion. The second hook groove portion is connected to the end of the horizontal plate of the second L-shaped portion. The height of the horizontal plate of the second L-shaped portion is less than the height of the vertical plate of the second L-shaped portion. The second substrate is inverted and located on the opposite side of the first substrate, and the distance between the first L-shaped portion and the second L-shaped portion is the thickness of the first hook groove portion. The first hook groove portion and the second hook groove portion constitute the rope groove, and an assembly transverse groove is formed between the first hook groove portion and the second hook groove portion; an assembly space is limited between the first L-shaped portion and the second L-shaped portion. Assembly vertical grooves are formed between the first hook groove and the vertical plate of the second L-shaped part, and between the second hook groove and the vertical plate of the first L-shaped part. One of the two assembly vertical grooves is located on the front side of the base, and the other is located on the rear side of the base.

[0014] Furthermore, the first substrate and the second substrate are fixedly connected by the first pin and the second pin of the locking assembly.

[0015] Compared with the prior art, at least one of the beneficial effects that this utility model can achieve is that the rope grabber of this utility model is a safety device for preventing personnel from falling and used for high-altitude operations. It has a reasonable structure, practical function, and is safe and reliable, and can be used by personnel when performing high-altitude operations.

[0016] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0018] Figure 1 This is a schematic diagram of the rope gripper in a specific implementation (I); Figure 2 This is a schematic diagram (II) of the rope gripper in a specific implementation method. Figure 3 This is a schematic diagram of the structure of the rope gripper's upward rotation locking assembly in a specific implementation.

[0019] Figure label: 1-Base; 101-Assembly space; 102-Assembly horizontal groove; 103-Assembly vertical groove; 11-First base plate; 111-First L-shaped portion; 112-First hook groove portion; 12-Second base plate; 121-Second L-shaped portion; 122-Second hook groove portion; 2-Locking assembly; 201-Mounting hole; 202-Reinforcing hole; Upper locking plate assembly 21; 211-Upper locking end; 21a-First upper locking plate; 21b-Second upper locking plate Plate; 22-Lower locking plate assembly; 22a-First lower locking plate; 22b-Second lower locking plate; 22c-Third lower locking plate; 221-Washer; 23-Connecting plate assembly; 231-First connecting plate; 232-Second connecting plate; 24-First pin; 25-Second pin; 26-Third pin; 27-Fourth pin; 28-Torsion spring; 29-Fixing component; 3-Rope; 4-O-ring; 41-Threaded sleeve; 5-Reinforcing rope. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.

[0023] The working surface of this utility model can typically be a plane or a curved surface, and can be inclined or horizontal. For ease of explanation, the embodiment of this utility model is placed on a horizontal surface and used on a horizontal surface, thereby defining "height" and "vertical".

[0024] A specific embodiment of this utility model discloses a rope gripper, such as... Figures 1-3 As shown, it includes: The base 1 is provided with a rope groove for the rope 3 to pass through; Locking assembly 2 is rotatably connected to the base 1; the locking assembly 2 includes a locking end, and the locking assembly 2 is configured to adjust the distance between the locking end and the bottom of the rope groove by rotating the locking assembly 2, that is, by rotating the locking assembly, it can at least adjust whether the locking end is pressed against the rope 3 in the rope groove; The locking component 2 includes at least a locking state and a sliding state; In the locked state, the distance between the locking end and the bottom of the rope groove is less than the diameter of the rope, that is, the locking end is pressed against the rope 3 so that the rope gripper is fixed on the rope, that is, the rope gripper grips the rope. In the sliding state, the distance between the locking end and the bottom of the rope groove is greater than the diameter of the rope, that is, there is a gap between the locking end and the rope, so that the rope gripper can slide on the rope. The locking component 2 is configured to be in a locked state at least when subjected to a downward force. Preferably, the downward force includes the weight of the locking component 2 itself, that is, the locking component is in a locked state when the rope gripper is not subjected to external force, that is, the locking component is in a locked state in the initial state of the rope gripper.

[0025] Specifically, when an upward force is applied to the locking component 2 (the upward force is at least greater than the weight of the locking component itself), the locking component rotates upward and enters a sliding state. When a downward force is applied (the downward force is an external force) or no force is applied to the locking component 2, the locking component remains in its original state or rotates downward and enters a locked state. When a user moves up and down along the rope using the rope gripper, if they accidentally step into a gap, the locking component 2 can promptly cause the rope gripper to grip and fix itself to the rope under the user's weight, preventing the user from falling from a height.

[0026] It should be noted that the locking component 2 is configured to be detachably connected to the user's safety equipment (such as a full-body safety belt or other equivalent equipment). When the user misses a step, their weight acts directly on the locking component 2, putting it in a locked state.

[0027] The rope gripper of this utility model is a safety device used to prevent people from falling and for use in high-altitude operations. It has a reasonable structure, practical function, and is safe and reliable. It can be used by personnel when performing high-altitude operations.

[0028] The base 1 is provided with an assembly space 101 to provide space for assembling and rotating the locking assembly 2. The assembly space 101 communicates with the rope groove and is located on one side of the rope groove, and the assembly space is open on at least one other side (the side opposite to the rope groove).

[0029] For example, with Figure 1 Define the vertical, horizontal, and front-back spatial positions of the rope gripper.

[0030] Preferably, the assembly space is an open space in all directions, i.e., the assembly space only has a front sidewall and a rear sidewall, so that the locking assembly can rotate smoothly and without obstruction. The left side of the assembly space is connected to the rope groove.

[0031] The locking assembly 2 is configured such that at least the locking end is located within the assembly space 101, and at least a portion of the locking assembly is located outside the assembly space, to facilitate the application of force to rotate the locking assembly 2 and to facilitate the connection of the locking assembly 2 with the user's safety equipment. Specifically, the portion of the locking assembly 2 located outside the assembly space is provided with a mounting hole 201 for connecting the rope gripper to the user's safety equipment through the mounting hole.

[0032] The surface of the locking end near the rope groove is a friction surface, and the friction surface is provided with anti-slip texture and / or anti-slip material. At least the side of the locking end that abuts the rope in the locked state is a friction surface to increase the friction between the rope gripper and the rope, thereby improving the safety factor of the rope gripper.

[0033] To facilitate connection with safety equipment worn by the user, the rope gripper also includes an O-ring 4. The safety equipment is detachably connected to the mounting hole 101 via the O-ring 4, meaning the O-ring 4 is detachably mounted on the mounting hole 101. To prevent the O-ring from accidentally opening during use, the O-ring 4 is provided with a threaded sleeve 41. The switch of the O-ring 4 has threads that mate with the threaded sleeve 41. To open the O-ring, the threaded sleeve 41 must first be rotated to expose the switch. After installing the O-ring into the mounting hole 101, the threaded sleeve 41 must be rotated to the switch position, completely obscuring the switch and preventing the O-ring from being accidentally opened.

[0034] To improve the connection strength between the rope gripper and the rope, the rope gripper includes more than one locking end. For example, the locking assembly 2 includes two locking ends: an upper locking end 211 and a lower locking end (not shown in the figures), with the lower locking end located below the upper locking end 211.

[0035] According to one embodiment of the present invention, the locking component 2 includes: The upper locking plate assembly 21 has an upper locking end 211 at one end, and the upper locking end 211 is rotatably connected to the base 1. The lower locking plate assembly 22 has a lower locking end at one end and a mounting hole 201 at the other end; the lower locking end is rotatably connected to the base 1. Connecting plate assembly 23 is rotatably connected at both ends to the upper locking plate assembly and the lower locking plate assembly, respectively. The upper locking plate group 21 and the lower locking plate group 22 are always arranged in parallel, that is, the four rotation points formed by the upper locking plate group 21, the lower locking plate group 22, the base and the connecting plate group 23 are not only located in the same plane, but also form the four corners of a parallelogram.

[0036] For example, the upper locking plate assembly 21 is rotatably connected to the base 1 via a first pin 24; the lower locking plate assembly 22 is rotatably connected to the base 1 via a second pin 25; and the connecting plate assembly 23 is rotatably connected to the upper locking plate assembly 21 and the lower locking plate assembly 22 via a third pin 26 and a fourth pin 27, respectively. The two ends of the first pin 24 and the second pin 25 are fixedly connected to two opposite side walls constituting the assembly space 101, and portions of the upper and lower locking plate assemblies are located between the two opposite side walls of the assembly space 101. The connecting plate assembly 23 includes two structurally identical connecting plates arranged opposite each other, namely a first connecting plate and a second connecting plate. The two ends of the third pin 26 and the fourth pin 27 are fixedly connected to the first connecting plate 231 and the second connecting plate 232, respectively, and portions of the upper locking plate assembly 21 and the lower locking plate assembly 22 are located between the first connecting plate 231 and the second connecting plate 232.

[0037] To further strengthen the connection between the O-ring and the locking assembly, the connecting plate assembly 23 is provided with reinforcing holes 202, so that the reinforcing rope 5 can connect and reinforce the locking assembly and the O-ring through the reinforcing holes 202, preventing the rope grabber locking assembly from accidentally loosening from the O-ring. Preferably, the reinforcing rope 5 is a steel rope. Specifically, reinforcing holes 202 are provided at opposite positions between the first connecting plate 231 and the second connecting plate 232, and the reinforcing holes 202 are located between the third pin and the fourth pin.

[0038] To improve the gripping effect of the rope gripper, a torsion spring 28 is provided between the lower locking plate assembly 22 and the second pin 25, and / or between the upper locking plate assembly 21 and the first pin 24. When the rope gripper is not subjected to external force or the external force is removed, the torsion spring can keep the locking assembly in or return to the locked state. When an upward external force F is applied to the locking assembly, the torsion force of the torsion spring must be overcome. When the external force is removed, the locking assembly returns to the locked state under the torsion force of the torsion spring. The torsion spring can be hidden between the locking plate assembly and the pin, or it can be partially exposed. In this embodiment, a torsion spring 28 is provided between the lower locking plate assembly 22 and the second pin 25.

[0039] To ensure the structural strength and stability of the locking assembly, the upper locking plate group and the lower locking plate group are each composed of multiple stacked plates with the same structure. Specifically, the upper locking plate group 21 includes a first upper locking plate 21a and a second upper locking plate 21b with the same structure and stacked together. The first upper locking plate 21a and the second upper locking plate 21b are fixedly connected by two fasteners 29. The lower locking plate group 22 includes a first lower locking plate 22a, a second lower locking plate 22b, and a third lower locking plate 22c with the same structure and stacked together. The first lower locking plate 22a, the second lower locking plate 22b, and the third lower locking plate 22c are fixedly connected by two fasteners 29.

[0040] To ensure proper installation of the rope gripper, the middle second lower locking plate 22c has a slot that communicates with the mounting hole 201. This slot extends from between the first lower locking plate 22a and the third lower locking plate 22c to the mounting hole 201, with the edge of the slot surrounding the outer edge of the mounting hole; that is, the mounting hole is located within the slot. A gasket 221 is provided within the slot, and the gasket 221 can slide within the slot. The gasket 221 has a first state and a second state. In the first state, the gasket 221 is located below the mounting hole 201 and completely exposes the mounting hole 201. In the second state, the gasket 221 is located within the mounting hole 201 and can completely cover the mounting hole. When the rope gripper is installed in the correct direction, the gasket is in the first state. When the installation direction is reversed, the gasket is in the second state. In this state, the mounting hole is blocked, preventing the installation of the O-ring, reminding the user that the rope gripper needs to be adjusted if installed incorrectly.

[0041] According to one embodiment of the present invention, the base 1 includes a first substrate 11 and a second substrate 12 with identical structures. The first substrate 11 includes a first L-shaped portion 111 and a first groove portion 112. The first groove portion 112 is connected to the end of the horizontal plate of the first L-shaped portion 111, and the height of the horizontal plate of the first L-shaped portion 111 is less than the height of the vertical plate of the first L-shaped portion 111. The second substrate 12 includes a second L-shaped portion 121 and a second groove portion 122. The second groove portion 122 is connected to the end of the horizontal plate of the second L-shaped portion 121, and the height of the horizontal plate of the second L-shaped portion 121 is less than the height of the vertical plate of the second L-shaped portion 121. The vertical plate height of 121; the second base plate 12 is inverted and located on the opposite side of the first base plate 11, and the distance between the first L-shaped part 111 and the second L-shaped part 121 is the thickness of the first hook groove part 112. The first hook groove part 112 and the second hook groove part 122 constitute the rope groove, and an assembly horizontal groove 102 is formed between the first hook groove part and the second hook groove part; an assembly space is limited between the first L-shaped part and the second L-shaped part, and an assembly vertical groove 103 is formed between the vertical plate of the first hook groove part and the second L-shaped part, and between the vertical plate of the second hook groove part and the first L-shaped part, respectively. One of the two assembly vertical grooves is located on the front side of the base, and the other is located on the rear side of the base. The rope first enters the assembly horizontal groove 102, and then the ropes on both sides of the assembly horizontal groove are respectively loaded into the rope groove through the two assembly vertical grooves 103. This arrangement makes it difficult for the rope to slip out of the rope groove, improving the connection effect between the rope gripper and the rope.

[0042] In this embodiment, the first substrate 11 and the second substrate 12 are fixedly connected by the first pin 24 and the second pin 25 of the locking assembly.

[0043] This utility model's rope grabber facilitates the requirements of tying and untying ropes. When used in high-altitude operations, it can prevent personnel from suddenly falling in case of accidents, ensuring the safety of personnel.

[0044] This utility model rope gripper can be used in various occasions to quickly grip and lock round ropes. The rope gripper is available in various specifications with different outer circle contact arc sizes to accommodate ropes of different diameters.

[0045] When installing the rope gripper on the rope, first place the rope in the assembly horizontal slot, then rotate the locking component upwards to disengage it from the two assembly vertical slots, allowing the rope to smoothly enter the rope slot.

[0046] During installation and use, the main body of the rope gripper (including the base and locking assembly) must first be installed onto the rope, and then the O-ring must be installed into the mounting hole. To remove it, the O-ring must first be removed from the mounting hole, and then the main body of the rope gripper must be removed from the rope. If the O-ring is installed onto the main body of the rope gripper first, the rope gripper cannot be installed onto the round rope. When removing it, if the O-ring is not removed from the mounting hole first, the rope gripper cannot be detached from the round rope; this design prevents the wire rope from accidentally coming loose when using the rope gripper up and down.

[0047] This utility model rope grabber is used in high-altitude operations to prevent sudden falls in case of accidents, ensuring the safety of personnel. It has a reasonable structure, is easy to install and disassemble, has practical functions, and is safe and reliable, making it worthy of promotion and application.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rope grab, characterized in that include: The base has a rope groove for ropes to pass through; A locking assembly is rotatably connected to the base; the locking assembly includes a locking end, and the locking assembly is configured such that the distance between the locking end and the bottom of the rope groove can be adjusted by rotating the locking assembly; The locking component includes at least a locked state and a sliding state; In the locked state, the distance between the locking end and the bottom of the rope groove is less than the diameter of the rope, so that the rope gripper can be fixed on the rope. In the sliding state, the distance between the locking end and the bottom of the rope groove is greater than the diameter of the rope, so that the rope gripper can slide on the rope; The locking component is configured to be locked at least when subjected to a downward force.

2. The rope grab of claim 1, wherein, The base is provided with an assembly space, which is in communication with the rope groove and is located on one side of the rope groove, while the other side of the assembly space is open. The locking assembly is configured such that at least the locking end is located within the assembly space, and at least a portion of the locking assembly is located outside the assembly space; The surface of the locking end near the rope groove is a friction surface, and the friction surface is provided with anti-slip texture and / or anti-slip material.

3. The rope grab of claim 2, wherein, The locking assembly has mounting holes on a portion outside the assembly space for connecting the rope gripper to safety equipment worn by the user.

4. The rope grab of claim 3, wherein, It also includes an O-ring, through which the safety device is detachably connected to the mounting hole.

5. The rope grab of claim 4, wherein, The locking assembly includes two locking ends, namely an upper locking end and a lower locking end, with the lower locking end located below the upper locking end.

6. The rope grab of claim 5, wherein, The locking component includes: The upper locking plate assembly has an upper locking end at one end, and the upper locking end is rotatably connected to the base; The lower locking plate assembly has a lower locking stop end at one end and a mounting hole at the other end; the lower locking stop end is rotatably connected to the base. The connecting plate assembly is rotatably connected at both ends to the upper locking plate assembly and the lower locking plate assembly, respectively. The upper locking plate assembly and the lower locking plate assembly always remain parallel.

7. The rope grab of claim 6, wherein, The upper locking plate assembly is rotatably connected to the base via a first pin. The lower locking plate assembly is rotatably connected to the base via a second pin. The connecting plate assembly is rotatably connected to the upper locking plate assembly and the lower locking plate assembly via a third pin and a fourth pin, respectively. The two ends of the first pin and the second pin are respectively fixedly connected to the two opposite side walls that constitute the assembly space; The connecting plate assembly includes two structurally identical connecting plates arranged opposite each other, namely a first connecting plate and a second connecting plate, and the two ends of the third pin and the fourth pin are fixedly connected to the first connecting plate and the second connecting plate, respectively.

8. The rope grab of claim 7, wherein, The connecting plate assembly is provided with reinforcement holes so that the reinforcement rope can pass through the reinforcement holes to connect and reinforce the locking assembly with the O-ring buckle; A torsion spring is provided between the lower locking plate assembly and the second pin, or / and, and a torsion spring is provided between the upper locking plate assembly and the first pin; The lower locking plate assembly includes a first lower locking plate, a second lower locking plate, and a third lower locking plate stacked sequentially. The middle second lower locking plate has a slot that communicates with the mounting hole. The slot extends from between the first and third lower locking plates to the mounting hole, and the edge of the slot surrounds the outer side of the edge of the mounting hole. A gasket is provided in the slot, and the gasket can slide within the slot. The gasket has a first state and a second state. In the first state, the gasket is located below the mounting hole and completely exposes the mounting hole. In the second state, the gasket is located inside the mounting hole and can completely cover the mounting hole.

9. A rope grab according to any one of claims 1 to 8, characterized in that The base includes a first substrate and a second substrate with identical structures; The first substrate includes a first L-shaped portion and a first groove portion. The first groove portion is connected to the end of the horizontal plate of the first L-shaped portion. The height of the horizontal plate of the first L-shaped portion is less than the height of the vertical plate of the first L-shaped portion. The structure of the second substrate is the same as that of the first substrate, including a second L-shaped portion and a second hook groove portion. The second hook groove portion is connected to the end of the horizontal plate of the second L-shaped portion. The height of the horizontal plate of the second L-shaped portion is less than the height of the vertical plate of the second L-shaped portion. The second substrate is inverted and located on the opposite side of the first substrate, and the distance between the first L-shaped portion and the second L-shaped portion is the thickness of the first hook groove portion. The first hook groove portion and the second hook groove portion constitute the rope groove, and an assembly transverse groove is formed between the first hook groove portion and the second hook groove portion; an assembly space is limited between the first L-shaped portion and the second L-shaped portion. Assembly vertical grooves are formed between the first hook groove and the vertical plate of the second L-shaped part, and between the second hook groove and the vertical plate of the first L-shaped part. One of the two assembly vertical grooves is located on the front side of the base, and the other is located on the rear side of the base.

10. The rope grab of claim 9, wherein, The first substrate and the second substrate are fixedly connected by a first pin and a second pin of a locking assembly.

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