High-altitude operation ground wire leveraging tool

Abstract

The invention provides a high-altitude operation ground wire leveraging tool, which comprises a fixed seat, which comprises a first connecting section and a second connecting section, and the first connecting section and the second connecting section are arranged at an angle; the first clamping assembly is arranged on the first connecting section, and the second clamping assembly is arranged on the second connecting section; the first clamping assembly is arranged on the first connecting section, the second clamping assembly is arranged on the second connecting section, and the first clamping assembly and the second clamping assembly are used for clamping a grounding wire; through the fixing effect of the fixing assembly, the weight of the grounding wire can be transmitted to the target object through the fixing base, the grounding wire is clamped and fixed through the first clamping assembly and the second clamping assembly in the process, an operator does not need to bear the weight of the grounding wire, the safety and convenience of high-altitude grounding wire installation operation are effectively improved, and the working efficiency is improved. High-altitude carrying and rapid installation are facilitated, and the overhaul efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of power maintenance technology, specifically relating to a grounding wire leverage tool for high-altitude operations. Background Technology

[0002] In the maintenance of 500kV transmission lines and substation equipment, installing grounding wires is a core safety measure to ensure personnel safety and prevent electric shock accidents. The current industry standard operating procedure is as follows: after workers ride in an aerial work platform or climb the tower, they use an insulated operating rod to lift the entire bundle or single grounding wire to the designated hanging position, and then complete the fixing and installation of the grounding wire.

[0003] However, due to the requirements of power transmission level, 500kV grounding wires are characterized by thick wire diameter, long length, and large overall weight. During the lifting process via the insulated operating rod, the entire weight of the grounding wire acts directly on the insulated operating rod and the operator's arm. This not only places extremely high demands on the operator's physical strength, resulting in high work intensity and rapid fatigue, but more importantly, wind interference in the high-altitude environment and the instability of the work platform or tower can easily cause the grounding wire to sway or swing during the lifting process, and even lead to safety hazards such as the insulated operating rod slipping out of the operator's hand or the grounding wire going out of control. These seriously threaten the personal safety of the operators and the conduct of equipment maintenance work. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To address the aforementioned problems, this application provides a grounding wire leverage tool for high-altitude operations, comprising: The fixing base includes a first connecting section and a second connecting section, wherein the first connecting section and the second connecting section are arranged at an angle; A first clamping assembly is disposed on the first connecting segment; A second clamping assembly is disposed on the second connecting segment, and the first clamping assembly and the second clamping assembly are used to clamp the grounding wire; A fixing component is disposed on the fixing base and is used to fix the fixing base to the target object.

[0006] Optionally, the first clamping component includes: An adjusting rod is disposed on the first connecting section; The first gripper is disposed on the adjusting rod.

[0007] Optionally, the adjusting rod is threadedly connected to the first connecting section.

[0008] Optionally, the second clamping assembly includes: The clamp is disposed on the second connecting section; The second gripper is disposed on the clamp, and the clamp is used to drive the second gripper to move toward the first gripper so that the first gripper and the second gripper clamp the grounding wire.

[0009] Optionally, the clamp includes: Mounting base, the mounting base being disposed on the second connecting section; A handle, the first end of which is rotatably connected to the mounting base; A connecting rod, the first end of which is connected to the second gripper, and the second end of which is rotatably connected to the mounting base; A limiting rod, the first end of which is rotatably connected to the handle, and the second end of which is rotatably connected to the connecting rod.

[0010] Optionally, the first gripper includes: A fixing plate, the first end of which is connected to the adjusting rod; The first claw body is symmetrically disposed on the second end of the fixing plate; The second gripper includes: The second claw body is disposed on the connecting rod and is located between the first claw bodies.

[0011] Optionally, a first clamping cavity is provided on the side of the first claw body away from the fixing plate; The second claw body has a second clamping cavity on the side away from the connecting rod.

[0012] Optionally, the first claw body and the first clamping cavity are provided with a first anti-slip layer; The second claw body is provided with a second anti-slip layer located in the second clamping cavity.

[0013] Optionally, the fixing component includes: A clamping plate is disposed on the fixed base; A connector, which is connected to the fixed base via the clamping plate.

[0014] Optionally, the clamping plate and the fixed base have a fixing cavity on their opposing surfaces.

[0015] Beneficial effects The high-altitude grounding wire assist tool provided in the embodiments of the present invention can transfer the weight of the grounding wire to the target object through the fixing effect of the fixing components, thereby isolating the weight of the grounding wire from the force exerted by the operator. It eliminates the need for manual operation by the operator, significantly reducing the physical exertion of the operator. During this process, the grounding wire is clamped and fixed by the first clamping component and the second clamping component, and the operator does not need to bear the weight of the grounding wire. This effectively improves the safety and convenience of high-altitude grounding wire installation operations, facilitates high-altitude carrying and rapid installation, and improves maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention when the grounding wire is clamped; Figure 2 This is a structural diagram of the present invention when the grounding wire is clamped; Figure 3 This is a structural diagram of the clamp of the present invention; Figure 4 This is a structural diagram of the fixture of the present invention disassembled; Figure 5 This is a side view of the present invention.

[0017] The reference numerals in the attached figures are as follows: 1. Fixed base; 11. First connecting section; 12. Second connecting section; 2. First clamping assembly; 21. Adjusting rod; 22. First gripper; 221. Fixed plate; 222. First gripper body; 3. Second clamping assembly; 31. Clamp; 311. Mounting base; 312. Handle; 313. Connecting rod; 314. Limiting rod; 3141. First limiting piece; 3142. Second limiting piece; 3143. Baffle; 32. Second gripper; 4. Fixed assembly; 41. Clamping plate; 42. Connector. Detailed Implementation

[0018] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] See also Figure 1-5 As shown, according to an embodiment of this application, a grounding wire leverage tool for high-altitude operations is provided, comprising: A fixing base 1, the fixing base 1 including a first connecting section 11 and a second connecting section 12, the first connecting section 11 and the second connecting section 12 being arranged at an angle; First clamping component 2, the first clamping component 2 is disposed on the first connecting segment 11; The second clamping component 3 is disposed on the second connecting section 12, and the first clamping component 2 and the second clamping component 3 are used to clamp the grounding wire; Fixing component 4 is disposed on the fixing base 1 and is used to fix the fixing base 1 to the target object.

[0023] This technical solution discloses a grounding wire support tool for high-altitude operations, used for grounding wire installation during the maintenance of 500kV transmission lines and substation equipment in high-altitude work scenarios. The tool includes a fixed base 1, a first clamping assembly 2, a second clamping assembly 3, and a fixing assembly 4. The fixed base 1 includes a first connecting section 11 and a second connecting section 12 connected to each other, and the first connecting section 11 and the second connecting section 12 are angled. This angled arrangement allows the first clamping assembly 2 and the second clamping assembly 3 to form a relative position adapted to clamp the grounding wire, achieving stable clamping and fixing of the grounding wire.

[0024] The first clamping component 2 is disposed on the first connecting section 11, and the second clamping component 3 is disposed on the second connecting section 12. The first clamping component 2 and the second clamping component 3 cooperate with each other to clamp and fix the grounding wire. When installing the grounding wire at height, the operator can first place the grounding wire between the first clamping component 2 and the second clamping component 3. The first clamping component 2 and the second clamping component 3 fix the grounding wire, and at the same time, the fixing component 4 securely fixes the entire fixing base 1 to the target object such as the guardrail of the aerial work vehicle or the tower support rod. Through the fixing effect of the fixing component 4, the weight of the grounding wire can be transferred to the target object through the fixing base 1, realizing the isolation of the weight of the grounding wire from the operator's stress. There is no need for the operator to operate it by hand, which greatly reduces the physical exertion of the operator. During this process, the grounding wire is clamped and fixed by the first clamping component 2 and the second clamping component 3. The operator does not need to bear the weight of the grounding wire, which effectively improves the safety and convenience of installing the grounding wire at height, facilitates carrying and quick installation at height, and improves the efficiency of maintenance.

[0025] In some embodiments, the first clamping component 2 includes: Adjusting rod 21, the adjusting rod 21 is disposed on the first connecting section 11; The first gripper 22 is disposed on the adjusting rod 21.

[0026] In this technical solution, the first clamping assembly 2 includes an adjusting rod 21 and a first gripper 22. The adjusting rod 21 is installed on the first connecting section 11 of the fixed base 1, which can support the first gripper 22 and adjust the position of the first gripper 22.

[0027] The first gripper 22 is mounted on the adjusting rod 21, forming a clamping space for the grounding wire with the second clamping assembly 3. During actual high-altitude operations, the operator can adjust the adjusting rod 21 to change the distance between the first gripper 22 and the second clamping assembly 3, adapting to the clamping needs of grounding wires of different sizes and improving its applicability and clamping stability. During clamping, the first gripper 22 and the second clamping assembly 3 can fit against the surface of the grounding wire, ensuring a stable clamping position and preventing the grounding wire from slipping during operation.

[0028] In some embodiments, the adjusting rod 21 is threadedly connected to the first connecting section 11.

[0029] In this technical solution, the adjusting rod 21 is threadedly connected to the first connecting section 11. When the adjusting rod 21 is rotated, the first gripper 22 can move toward or away from the second clamping assembly 3, which can clamp and fix grounding wires of different sizes. Furthermore, the adjusting rod 21 and the first gripper 22 are connected by a rotating shaft. Through the rotation setting, the first gripper 22 will not rotate with the adjusting rod 21 during the adjustment of the position of the first gripper 22, so as to achieve stable clamping of the grounding wire by the first gripper 22.

[0030] In some embodiments, the second clamping component 3 includes: Clamp 31, the clamp 31 is disposed on the second connecting section 12; The second gripper 32 is disposed on the clamp 31. The clamp 31 is used to drive the second gripper 32 toward the first gripper 22 so that the first gripper 22 and the second gripper 32 clamp the grounding wire.

[0031] In this technical solution, the second clamping component 3 specifically includes a clamp 31 and a second jaw 32. The clamp 31 is mounted on the second connecting section 12 of the fixed base 1, and the second jaw 32 is mounted on the clamp 31. The clamp 31 can drive the second jaw 32 to move towards the first jaw 33, so that the first jaw 22 and the second jaw 32 cooperate to clamp the grounding wire. After clamping the grounding wire, the clamp 31 can fix the position of the second jaw 32, achieving continuous and stable clamping of the grounding wire. In actual high-altitude grounding wire installation operations, after the grounding wire is placed between the first jaw 22 and the second jaw 32, the clamp 31 drives the second jaw 32 to gradually approach the first jaw 22 until the first jaw 22 and the second jaw 32 are in contact with the surface of the grounding wire, achieving stable clamping of the grounding wire and fixing the grounding wire.

[0032] In some embodiments, the clamp 31 includes: Mounting base 311, the mounting base 311 is disposed on the second connecting section 12; A handle 312, the first end of which is rotatably connected to the mounting base 311; A connecting rod 313, the first end of which is connected to the second gripper 32, and the second end of which is rotatably connected to the mounting base 311; A limiting rod 314, the first end of which is rotatably connected to the handle 312, and the second end of which is rotatably connected to the connecting rod 313.

[0033] In this technical solution, the clamp 31 includes a mounting base 311, a handle 312, a connecting rod 313, and a limiting rod 314. The mounting base 311 is mounted on the second connecting section 12 of the fixed base 1, providing a mounting position for the handle 312 and the connecting rod 313. The first end of the handle 312 is rotatably connected to the mounting base 311, serving as an operating component for the operator, facilitating the operator to quickly apply force in high-altitude working environments. The first end of the connecting rod 313 is connected to the second gripper 32, and the second end is rotatably connected to the mounting base 311, enabling the driving force of the handle 312 to be directly transmitted to the second gripper 32 to drive its movement. The first end of the limiting rod 314 is rotatably connected to the handle 312, and the second end is rotatably connected to the connecting rod 313, limiting and guiding the relative movement of the handle 312 and the connecting rod 313. When clamping the grounding wire, the operator pushes the handle 312 to rotate clockwise. Through the transmission of the limiting rod 314, the connecting rod 313 rotates around the mounting base 311, thereby driving the second gripper 32 to move toward the first gripper 22 until it clamps the grounding wire with the first gripper 22. After the first gripper 22 and the second gripper 32 clamp the grounding wire, the operator pushes the handle 312 to rotate counterclockwise. At this time, the handle 312 will drive the limiting rod 314 to move, but will not drive the connecting rod to rotate. After the limiting rod 314 rotates, it will be sleeved on the end of the mounting base 311 away from the connecting rod 313. At this time, the position of the second gripper 32 can be locked and fixed, so that the first gripper 22 and the second gripper 32 stably clamp and fix the grounding wire.

[0034] It is understandable that a sliding hole is provided on the connecting rod 313. After the screw passes through the sliding hole, it connects with the second gripper 32, so that the second gripper 32 can be installed on the connecting rod 313. During use, the screw can also move laterally in the sliding hole, and the position of the second gripper 32 relative to the connecting rod 313 can be changed according to the clamping requirements.

[0035] Understandably, the limiting rod 314 includes a first limiting piece 3141, a second limiting piece 3142, and a stop piece 3143. The first ends of the first limiting piece 3141 and the second limiting piece 3142 are rotatably mounted on the handle 312, and the second ends of the first limiting piece 3141 and the second limiting piece 3142 are symmetrically mounted on the connecting rod 313. The stop piece 3143 is installed between the first limiting piece 3141 and the second limiting piece 3142. After the first gripper 22 and the second gripper 32 clamp the grounding wire, the handle 312 is pushed to rotate counterclockwise. At this time, the handle 312 will drive the limit rod 314 to move, but will not drive the connecting rod 313 to rotate. After the limit rod 314 rotates, it will be sleeved on the end of the mounting base 311 away from the connecting rod 313. At this time, the first limit piece 3141 and the second limit piece 3142 are located on the upper and lower sides of the connecting rod 313, and the baffle 3143 is located on one side of the connecting rod 313, thereby limiting the connecting rod 313 and locking the position of the second gripper 32, so that the first gripper 22 and the second gripper 32 can stably clamp and fix the grounding wire.

[0036] In some embodiments, the first gripper 22 includes: A fixing plate 221, the first end of which is connected to the adjusting rod 21; The first claw body 222 is symmetrically arranged on the second end of the fixing plate 221; The second gripper 32 includes: The second claw body is disposed on the connecting rod 313 and is located between the first claw bodies 222.

[0037] In this technical solution, the first gripper 22 includes a fixing plate 221 and a first gripper body 222. The first end of the fixing plate 221 is connected to the adjusting rod 21, serving as the mounting and supporting carrier for the first gripper body 222. This allows the first gripper body 222 to be stably fixed to the adjusting rod 21, and simultaneously moves synchronously with the position adjustment of the adjusting rod 21, adjusting the gripping distance with the second gripper 32 according to the diameter of the grounding wire to be gripped. The first gripper bodies 222 are symmetrically arranged at the second end of the fixing plate 221, forming a reserved gripping area between the two symmetrical first gripper bodies 222, providing space for the embedding of the second gripper body and further improving the gripping and fixing capability of the grounding wire.

[0038] The second gripper 32 includes a second gripper body, which is fixedly mounted on the connecting rod 313 and located in the reserved clamping area between the two first gripper bodies 222, so that the first gripper 22 and the second gripper 32 form a ring-shaped clamping effect. When the clamp 31 drives the second gripper body to move toward the first gripper body 222, the second gripper body applies clamping force from one side of the grounding wire, and the two first gripper bodies 222 form a limiting support from the other side of the grounding wire, clamping the grounding wire and effectively preventing the grounding wire from slipping due to gravity, wind swaying or lateral displacement during operation.

[0039] Meanwhile, by adjusting the overall position of the first claw body 222 through the adjusting rod 21, and coordinating with the movement stroke of the second claw body, the clamping space between the first claw body 222 and the second claw body can be changed, ensuring that grounding wires of different specifications can be tightly clamped in a ring-like manner, further improving adaptability and clamping reliability, and ensuring the safety and stability of high-altitude operations.

[0040] In some embodiments, the first claw body 222 has a first clamping cavity on the side away from the fixing plate 221; The second claw body has a second clamping cavity on the side away from the connecting rod 313.

[0041] In this technical solution, the first claw body 222 and the second claw body, through the design of clamping cavities, further optimize the clamping adaptability and stability of the grounding wire, ensuring that the grounding wire always maintains reliable positioning in high-altitude operation scenarios. Specifically, the first claw body 222 has a first clamping cavity on the side away from the fixing plate 221. The contour of the first clamping cavity conforms to the outer surface shape of the grounding wire (preferably arc-shaped), which can form a close-fitting limit from both sides of the grounding wire. Correspondingly, the second claw body has a second clamping cavity on the side away from the connecting rod 313. The second clamping cavity also adopts an arc-shaped design that conforms to the outer surface of the grounding wire. Since the second claw body is located between the two first claw bodies 222, its second clamping cavity and the first clamping cavities of the two first claw bodies 222 form an enclosed clamping space. When the clamp 31 drives the second claw body to move towards the first claw body 222, the grounding wire will be embedded in the area enclosed by the first clamping cavity and the second clamping cavity.

[0042] In some embodiments, the first claw body 222 is provided with a first anti-slip layer located in the first clamping cavity; The second claw body is provided with a second anti-slip layer located in the second clamping cavity.

[0043] In this technical solution, a first anti-slip layer is provided in the first clamping cavity, and a second anti-slip layer is provided in the second clamping cavity. The first and second anti-slip layers can be anti-slip textures, such as diamond-shaped teeth or grid patterns, to further increase the friction with the surface of the grounding wire, enhance the anti-slip effect, and ensure that the grounding wire can still be firmly clamped under the action of gravity, avoiding the risk of slippage.

[0044] In some embodiments, the fixing component 4 includes: Clamping plate 41, the clamping plate 41 is disposed on the fixing base 1; Connector 42, which is connected to the fixed base 1 via the clamping plate 41.

[0045] The clamping plate 41 and the fixed base 1 have a fixing cavity on their opposite sides.

[0046] In this technical solution, the fixing component 4 includes a clamping plate 41 and a connector 42. The clamping plate 41 is mounted on the fixing base 1 and serves as a direct fixing component to the target object (such as the guardrail of an aerial work vehicle or the support rod of a tower). The connector 42 is connected to the fixing base 1 through the clamping plate 41. The distance between the clamping plate 41 and the fixing base 1 can be adjusted through the connector 42, thereby achieving clamping and fixing of target objects of different sizes.

[0047] The clamping plate 41 and the fixed base 1 have a fixing cavity on their opposing surfaces. The contour of the fixing cavity can be designed according to the cross-sectional shape of common target objects (such as arc or U-shape), so that the clamping plate 41 and the fixed base 1 can form a clamp when they are in contact with the surface of the target object. During installation, the target object is first placed in the corresponding clamping area of ​​the fixing cavity, and then the clamping plate 41 is driven to move closer to the fixed base 1 by tightening the connector 42, so that the inner wall of the fixing cavity is tightly in contact with the target object, and finally the fixed base 1 is firmly locked on the target object. The setting of the fixing cavity increases the contact area between the clamping plate 41, the fixed base 1 and the target object, improves the clamping friction, and effectively prevents the tool from sliding or shifting due to vibration and wind interference during high-altitude operations. The fixing cavity can be adapted to target objects with different cross-sectional dimensions (such as round pipes of different diameters and square pipes of different side lengths), which greatly improves the versatility of the fixing component 4 and can be flexibly applied to various working scenarios such as aerial work platforms and power transmission towers. Meanwhile, the fixed structure is easy to operate, allowing workers to quickly install and disassemble tools in high-altitude environments, further improving work efficiency.

[0048] Understandably, rubber anti-slip pads can be added to the inner wall of the fixing cavity, which can not only further increase the friction with the target object and enhance the fixing stability, but also avoid scratching damage to the surface of the target object during the clamping process.

[0049] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A grounding wire leverage tool for high-altitude operations, characterized in that, include: The fixing base (1) includes a first connecting section (11) and a second connecting section (12), wherein the first connecting section (11) and the second connecting section (12) are arranged at an angle; A first clamping component (2) is disposed on the first connecting segment (11); The second clamping component (3) is disposed on the second connecting section (12), and the first clamping component (2) and the second clamping component (3) are used to clamp the grounding wire; Fixing component (4), which is disposed on the fixing seat (1) and is used to fix the fixing seat (1) to the target object.

2. The high-altitude work grounding wire leverage tool according to claim 1, characterized in that, The first clamping assembly (2) includes: Adjusting rod (21), the adjusting rod (21) is disposed on the first connecting section (11); The first gripper (22) is disposed on the adjusting rod (21).

3. The high-altitude work grounding wire leverage tool according to claim 2, characterized in that, The adjusting rod (21) is threadedly connected to the first connecting section (11).

4. The high-altitude work grounding wire leverage tool according to claim 2, characterized in that, The second clamping assembly (3) includes: A clamp (31) is disposed on the second connecting section (12); The second gripper (32) is disposed on the clamp (31). The clamp (31) is used to drive the second gripper (32) to move toward the first gripper (22) so that the first gripper (22) and the second gripper (32) clamp the grounding wire.

5. The high-altitude work grounding wire leverage tool according to claim 4, characterized in that, The clamp (31) includes: Mounting base (311), the mounting base (311) is disposed on the second connecting section (12); A handle (312), the first end of which is rotatably connected to the mounting base (311); A connecting rod (313) is provided, the first end of which is connected to the second gripper (32), and the second end of which is rotatably connected to the mounting base (311). A limiting rod (314) is provided, with its first end rotatably connected to the handle (312) and its second end rotatably connected to the connecting rod (313).

6. The high-altitude work grounding wire leverage tool according to claim 5, characterized in that, The first gripper (22) includes: A fixing plate (221) is provided, the first end of which is connected to the adjusting rod (21); The first claw body (222) is symmetrically arranged on the second end of the fixing plate (221); The second gripper (32) includes: The second claw body is disposed on the connecting rod (313) and is located between the first claw bodies (222).

7. The high-altitude work grounding wire leverage tool according to claim 6, characterized in that, The first claw body (222) has a first clamping cavity on the side away from the fixing plate (221); The second claw body has a second clamping cavity on the side away from the connecting rod (313).

8. The high-altitude work grounding wire leverage tool according to claim 7, characterized in that, The first claw body (222) is provided with a first anti-slip layer located in the first clamping cavity; The second claw body is provided with a second anti-slip layer located in the second clamping cavity.

9. The high-altitude work grounding wire leverage tool according to claim 1, characterized in that, The fixing component (4) includes: A clamping plate (41) is disposed on the fixing base (1); The connector (42) is connected to the fixed base (1) via the clamping plate (41).

10. The high-altitude work grounding wire leverage tool according to claim 9, characterized in that, The clamping plate (41) and the fixing seat (1) have a fixing cavity on their facing surfaces.

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