Disc type suspension glass insulator and use method thereof

Abstract

The invention discloses a disc-type suspension glass insulator and a use method thereof, and belongs to the technical field of insulators, the disc-type suspension glass insulator comprises a mounting column, the mounting column is sleeved with an umbrella skirt, the upper end of the umbrella skirt is connected with a fixing column, the mounting column is provided with a fixing sleeve, the upper end of the fixing column is symmetrically provided with two threaded grooves, and the upper end of the fixing sleeve is symmetrically in threaded connection with two screws. And the threaded rod is located at the position of the threaded groove, the threaded rod is matched with the threaded groove, mounting frames are connected to the symmetrical outer side walls of the two sides of the fixing sleeve, a fixing pipe is connected to the side wall of one side of each mounting frame, and a first spring is connected to the inner pipe bottom of each fixing pipe. Through the mutual cooperation of the installation column, the umbrella skirts, the fixing column, the fixing sleeve, the threaded groove, the screw rod, the fixing pipe, the fixing rod, the clamping hole, the limiting plate, the vertical plate, the rotating rod, the first spring and other structures, the insulator can be conveniently installed and disassembled, the operation is simple and convenient, the time is saved, and the applicability of the insulator is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of insulators, and in particular to a disc-type suspended glass insulator and a use method thereof. Background Art

[0002] Disc-type suspension insulators (hereinafter referred to as insulators) are used to insulate and secure conductors in high-voltage overhead transmission and distribution lines. They are typically assembled into insulator strings for use on lines of varying voltage levels. Insulators are categorized into standard and pollution-resistant types based on their operating environment and region. Standard insulators are suitable for general applications; increasing the number of insulator discs can improve pollution flashover performance. Pollution-resistant insulators are categorized into bell-shaped and double-layered types based on their umbrella structure. Pollution-resistant insulators are suitable for industrial dust, chemical, saline-alkali, coastal, and foggy areas. The optimal operating range for each type of pollution-resistant insulator will be determined through preliminary trials and evaluation.

[0003] At present, when existing disc-type suspension insulators are connected, fastening glue is usually applied to the butt surfaces of the two flanges. When they need to be disassembled, the actual operation steps are relatively cumbersome, and it is inconvenient to separate several sheds, resulting in poor applicability. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a disc-type suspended glass insulator and a method for using the same, which overcomes the deficiencies of the prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a disc-type suspended glass insulator, comprising a mounting post, an shed being provided on the mounting post, a fixing post being connected to an upper end of the shed, a fixing sleeve being mounted on the mounting post, two threaded grooves being symmetrically provided on the upper end of the fixing post, two screws being symmetrically threadedly connected to the upper end of the fixing sleeve, and the screws being located at the threaded grooves, mounting brackets being connected to the symmetrical outer walls of the fixing sleeve, a fixing tube being connected to the side wall of one side of the mounting bracket, a first spring being connected to the bottom of the inner tube of the fixing tube, the other end of the first spring being connected to a fixing rod, the other end of the fixing rod passing through the pipe opening of the fixing tube and extending outward, the first spring being in a compressed state, a locking hole being provided on the symmetrical side walls of the fixing sleeve and the fixing post, the fixing rod corresponding to the position of the locking hole, an upper baffle being connected to the upper end of the fixing rod, a limit plate being slidably connected to the mounting bracket, the upper baffle being in conflict with the limit plate, and a transmission assembly for driving the limit plate to move being mounted on the fixing sleeve.

[0006] When the cam is in the state of being moved, the spring is released, and the first spring is used to return the locking plate to the original position, and the locking plate is locked, so that the locking plate is locked. When the cam is in the state of being moved, the locking plate is locked and the locking plate is locked. When the cam is in the state of being moved, the locking plate is locked and the locking plate is locked.

[0007] As a preferred technical solution of the present invention, the transmission assembly includes a fixed block fixedly sleeved on the screw rod, two vertical plates are symmetrically connected to the upper end of the fixed sleeve, a rotating rod is rotatably connected to the side wall of one side of the vertical plate, and the rotating rod is located below the fixed block, and a horizontal plate is connected to the upper end of the limit plate, and the horizontal plate is located at the upper end of the rotating rod.

[0008] By adopting the above technical solution, when the screw moves downward, the screw will also drive the fixed block to move downward. When the fixed block contacts the rotating rod, the fixed block continues to move downward and exerts a force on the rotating rod. The rotating rod will rotate due to the force. When the rotating rod rotates, it will exert a force on the cross plate. The cross plate will move upward due to the force. The movement of the cross plate will drive the limit plate to move upward.

[0009] As a preferred technical solution of the present invention, the upper end of the screw is connected to a rotating block, and the side wall of the rotating block is provided with anti-slip grooves.

[0010] By adopting the above technical solution, it is convenient for workers to rotate the screw.

[0011] As a preferred technical solution of the present invention, a sliding groove is opened on the outer side walls symmetrically on both sides of the fixing sleeve, and a slider is slidably connected in the sliding groove. One end of the slider passes through the sliding groove notch and extends outward and is connected to the limit plate.

[0012] By adopting the above technical solution, the limiting plate is limited, thereby improving the stability of the movement of the limiting plate.

[0013] As a preferred technical solution of the present invention, a sliding rod is fixedly connected to the inner groove wall of the sliding groove, the sliding rod passes through the slider, and the slider is slidably connected to the sliding rod.

[0014] By adopting the above technical solution, the slider is prevented from falling out of the slide groove.

[0015] As a preferred technical solution of the present invention, a rolling groove is opened at one end of the sliding block, a rolling ball is arranged in the rolling groove, the ball is arranged through the notch of the rolling groove, and the ball is rollingly connected to the bottom of the sliding groove.

[0016] By adopting the above technical solution, the friction between the slider and the slide groove is reduced.

[0017] As a preferred technical solution of the present invention, the lower end of the fixing rod is connected to the lower baffle, the upper end of the umbrella skirt is symmetrically connected to the clamping rod, and the clamping rod is located on one side of the lower baffle, the outer walls symmetrical on both sides of the fixing sleeve are connected to a second spring, the other end of the second spring is connected to the corresponding clamping rod, the upper end of the umbrella skirt is symmetrically connected to two blocking frames, and the blocking frames are in contact with one side of the corresponding clamping rod.

[0018] By adopting the above technical solution, the fixed rod will also drive the lower baffle to move when it moves. When the lower baffle contacts the card rod, the lower baffle continues to move and will exert a force on the card rod. The card rod will squeeze the second spring under the force, and the second spring will be deformed under the force. When the lower baffle is detached from the card rod, the second spring will reset. At this time, the card rod will be located on the other side of the lower baffle, and the blocking frame will also limit the card rod to prevent the card rod from rotating to the other side, thereby preventing the fixed rod from detaching from the card hole, thereby improving the stability of the connection.

[0019] A method for using a disc-type suspension glass insulator, the method using any of the disc-type suspension glass insulators described above, comprising the following steps: S1: When in use, turn the screw, and the screw will move downward under the action of the thread. When the screw enters the thread groove on the fixed column, the screw will continue to rotate and the screw will be completely entered into the thread groove under the action of the thread. At this time, the fixed sleeve and the fixed column will be connected together; When the cam is in a state of contact with the guide rail, the cam is in a state of rotation and the guide rail is in a state of rotation, and the cam is in a state of rotation with the help of the spring which in turn moves the cam in the opposite direction. S3: When the fixed rod moves, it will also drive the lower baffle to move. When the lower baffle contacts the card rod, the lower baffle continues to move and will exert a force on the card rod. The card rod will squeeze the second spring under the force, and the second spring will deform under the force. When the lower baffle is detached from the card rod, the second spring will reset. At this time, the card rod will be located on the other side of the lower baffle, and the blocking frame will also limit the card rod to prevent the card rod from rotating to the other side, thereby preventing the fixed rod from detaching from the card hole, thereby improving the stability of the connection.

[0020] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a mounting post, an umbrella skirt, a fixing post, a fixing sleeve, a threaded groove, a screw, a mounting frame, a fixing tube, a fixing rod, a clamping hole, an upper baffle, a limit plate, a fixing block, a vertical plate, a rotating rod, a horizontal plate and a first spring. The screw moves downward under the action of the thread to enter the threaded groove on the fixing post. When the screw continues to rotate, the screw is completely driven into the threaded groove by the action of the thread. At this time, the fixing sleeve and the fixing post are connected together. When the screw moves downward, the screw also drives the fixing block to move downward. When the fixing block contacts the rotating rod, the fixing block continues to move downward to apply a force to the rotating rod. The rotating rod is acted upon. When the cam is in a position to move upward, the first spring will reset the cam and the first spring will drive the fixing rod to move in the fixing tube. When the fixing rod passes through the card holes on the fixing column and the fixing sleeve in turn, the fixing rod will be inserted into the fixing column. At this time, the fixing sleeve and the fixing column are connected together. When disassembly is required, the above operation can be reversed. The above structure facilitates the installation and disassembly of the insulator, is simple and convenient to operate, saves time, and thus improves the applicability of the insulator.

[0021] (2) The present invention provides a lower baffle, a clamping rod, a second spring and a blocking frame. When the fixed rod moves, it also drives the lower baffle to move. When the lower baffle contacts the clamping rod, the lower baffle continues to move and exerts a force on the clamping rod. The clamping rod is subjected to the force and squeezes the second spring. The second spring is deformed by the force. When the lower baffle is separated from the clamping rod, the second spring is reset. At this time, the clamping rod is located on the other side of the lower baffle, and the blocking frame also limits the clamping rod to prevent the clamping rod from rotating to the other side. Thus, the fixed rod can be prevented from being separated from the clamping hole, thereby improving the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2Schematic diagram of the internal structure of the fixing sleeve in the present invention; Figure 3 Schematic diagram of the internal structure of the fixed tube in the present invention; Figure 4 for Figure 2 Enlarged view of part A; Figure 5 for Figure 2 Magnified view of part B.

[0023] Description of reference numerals: 1. Mounting column; 2. Umbrella skirt; 3. Fixed column; 4. Fixed sleeve; 5. Threaded groove; 6. Screw; 7. Mounting frame; 8. Fixed tube; 9. Fixed rod; 10. Clamping hole; 11. Upper baffle; 12. Limiting plate; 13. Fixed block; 14. Vertical plate; 15. Rotating rod; 16. Horizontal plate; 17. First spring; 18. Slider; 19. Sliding rod; 20. Ball bearing; 21. Lower baffle; 22. Clamping rod; 23. Second spring; 24. Blocking frame. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 , a disc-type suspended glass insulator and a method of using the same, comprising a mounting post 1, an umbrella skirt 2 is provided on the mounting post 1, the upper end of the umbrella skirt 2 is connected to a fixing post 3, a fixing sleeve 4 is installed on the mounting post 1, the upper end of the fixing post 3 is symmetrically provided with two threaded grooves 5, the upper end of the fixing sleeve 4 is symmetrically threaded with two screws 6, and the screws 6 are located in the thread groove 5 position, the screws 6 are adapted to the thread groove 5, the upper end of the screw 6 is connected with a rotating block, and the side wall of the rotating block is provided with anti-slip grooves to facilitate the staff to rotate the screw 6. When in use, the screw 6 is rotated, and the rotation of the screw 6 will be affected by the thread and move downward. When the screw 6 enters the thread groove 5 on the fixing post 3, the screw 6 continues to rotate, and the screw 6 will be affected by the thread and completely enter the thread groove 5. At this time, the fixing sleeve 4 and the fixing post 3 will be connected together.

[0026] The symmetrical outer walls of the fixing sleeve 4 are fixedly connected to the mounting bracket 7, the side wall on one side of the mounting bracket 7 is connected to the fixing tube 8, the bottom of the inner tube of the fixing tube 8 is connected to the first spring 17, the other end of the first spring 17 is connected to the fixing rod 9, the other end of the fixing rod 9 passes through the pipe mouth of the fixing tube 8 and extends outward, the first spring 17 is in a compressed state, the fixing sleeve 4 and the symmetrical side walls of the fixing column 3 are provided with a card hole 10, the position of the fixing rod 9 corresponds to the card hole 10, the fixing rod 9 is adapted to the card hole 10, the upper end of the fixing rod 9 is connected to the upper baffle 11, the mounting bracket 7 is slidably connected to the limit plate 12, the upper baffle 11 conflicts with the limit plate 12, and the fixed sleeve 4 is installed with a transmission assembly for driving the limit plate 12 to move.

[0027] The transmission assembly includes a fixed block 13 fixedly sleeved on the screw rod 6, and two vertical plates 14 are symmetrically connected to the upper end of the fixed sleeve 4. A rotating rod 15 is rotatably connected to the side wall of one side of the vertical plate 14, and the rotating rod 15 is located below the fixed block 13. The upper end of the limit plate 12 is connected to a horizontal plate 16, and the horizontal plate 16 is located at the upper end of the rotating rod 15. When in use, the screw rod 6 is rotated, and the rotation of the screw rod 6 will be affected by the thread and move downward. When the screw rod 6 enters the thread groove 5 on the fixed column 3, the screw rod 6 continues to rotate, and the screw rod 6 will be affected by the thread and completely enter the thread groove 5. At this time, the fixed sleeve 4 and the fixed column 3 will be connected together. When the screw 6 moves downward, the screw 6 will also drive the fixed block 13 to move downward. When the fixed block 13 contacts the rotating rod 15, the fixed block 13 continues to move downward. When the lever 15 is in a state of rotation and the lever 15 is in a state of rotation, the lever 15 is in a state of rotation and the lever 15 is in a state of rotation. When the lever 15 is in a state of rotation, the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of rotation and the lever 15 is in a state of

[0028] A slide groove is provided on the symmetrical outer walls on both sides of the fixed sleeve 4, and a slider 18 is slidably connected in the slide groove. One end of the slider 18 passes through the slide groove notch and extends outward and is connected to the limit plate 12 to limit the limit plate 12 and improve the stability of the movement of the limit plate 12. A slide rod 19 is fixedly connected to the inner groove wall of the slide groove. The slide rod 19 is set through the slider 18, and the slider 18 is slidably connected to the slide rod 19 to prevent the slider 18 from escaping from the slide groove. A rolling groove is provided at one end of the slider 18, and a rolling ball 20 is set in the rolling groove. The ball 20 passes through the notch of the rolling groove and is rollingly connected to the bottom of the slide groove to reduce the friction between the slider 18 and the slide groove.

[0029] For details, please refer to Figure 2 and Figure 5 The lower end of the fixing rod 9 is connected to the lower baffle 21, and the upper end of the umbrella skirt 2 is symmetrically connected to the card rod 22, and the card rod 22 is located on one side of the lower baffle 21. The outer walls of the fixed sleeve 4 on both sides are connected to the second spring 23, and the other end of the second spring 23 is connected to the corresponding card rod 22. The upper end of the umbrella skirt 2 is symmetrically connected to two blocking frames 24, and the blocking frames 24 are in contact with one side of the corresponding card rod 22. When the fixing rod 9 moves, it will also drive the lower baffle 21 to move. When the lower baffle 21 contacts the card rod 22, the lower baffle When the lower baffle 21 is separated from the card rod 22, the second spring 23 is reset. At this time, the card rod 22 is located on the other side of the lower baffle 21, and the blocking frame 24 also limits the card rod 22 to prevent the card rod 22 from rotating to the other side, thereby preventing the fixing rod 9 from being separated from the card hole 10, thereby improving the stability of the connection.

[0030] Working principle: When in use, rotate the screw rod 6, and the rotation of the screw rod 6 will be affected by the thread and move downward. When the screw rod 6 enters the thread groove 5 on the fixed column 3, the screw rod 6 continues to rotate, and the screw rod 6 will be affected by the thread and completely enter the thread groove 5. At this time, the fixed sleeve 4 and the fixed column 3 will be connected together. When the screw rod 6 moves downward, the screw rod 6 will also drive the fixed block 13 to move downward. When the fixed block 13 contacts the rotating rod 15, the fixed block 13 continues to move downward and exerts a force on the rotating rod 15. The rotating rod 15 will rotate under the force. When the rotating rod 15 rotates, it will exert a force on the cross plate 16. The cross plate 16 will move upward under the force. The movement of the cross plate 16 will drive the limit plate 12 to move upward. When the limit plate 12 is disengaged from the upper baffle 11, the first spring 17 will reset, and the first spring 17 will drive the fixing rod 9 to the fixed tube 8 When the lower baffle 21 is separated from the card rod 22, the second spring 23 is deformed, and when the lower baffle 21 is separated from the card rod 22, the second spring 23 is reset. At this time, the card rod 22 is located at the other side of the lower baffle 21, and the blocking frame 24 also limits the card rod 22 to prevent the card rod 22 from rotating to the other side, thereby preventing the fixing rod 9 from being separated from the card hole 10, thereby improving the stability of the connection.

[0031] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A disc-type suspended glass insulator, comprising a mounting post (1), characterized in that: The mounting column (1) is provided with an umbrella skirt (2), the upper end of the umbrella skirt (2) is connected to a fixing column (3), a fixing sleeve (4) is installed on the mounting column (1), the upper end of the fixing column (3) is symmetrically provided with two thread grooves (5), the upper end of the fixing sleeve (4) is symmetrically threaded with two screw rods (6), and the screw rods (6) are located at the position of the thread groove (5), the outer side walls on both sides of the fixing sleeve (4) are connected to mounting frames (7), the side wall of one side of the mounting frame (7) is connected to a fixing pipe (8), the bottom of the inner tube of the fixing pipe (8) is connected to a first spring (17), and the first spring (17) The other end is connected to a fixing rod (9), the other end of the fixing rod (9) passes through the pipe mouth of the fixing tube (8) and extends outward, the first spring (17) is in a compressed state, the fixing sleeve (4) and the fixing column (3) are symmetrically provided with a clamping hole (10), the position of the fixing rod (9) and the clamping hole (10) correspond to each other, the upper end of the fixing rod (9) is connected to an upper baffle (11), the mounting frame (7) is slidably connected to a limit plate (12), the upper baffle (11) and the limit plate (12) are in conflict, and the fixing sleeve (4) is provided with a transmission component for driving the limit plate (12) to move.

2. The disc-type suspension glass insulator according to claim 1, characterized in that: The transmission assembly includes a fixed block (13) fixedly sleeved on the screw rod (6); the upper end of the fixed sleeve (4) is symmetrically connected to two vertical plates (14); a rotating rod (15) is rotatably connected to the side wall of one side of the vertical plate (14); the rotating rod (15) is located below the fixed block (13); the upper end of the limit plate (12) is connected to a horizontal plate (16), and the horizontal plate (16) is located at the upper end of the rotating rod (15).

3. The disc-type suspension glass insulator according to claim 2, characterized in that: The upper end of the screw rod (6) is connected to a rotating block, and the side wall of the rotating block is provided with anti-slip grooves.

4. The disc-type suspension glass insulator according to claim 1, characterized in that: A sliding groove is provided on the symmetrical outer side walls of the fixed sleeve (4), and a slider (18) is slidably connected in the sliding groove. One end of the slider (18) passes through the sliding groove notch and extends outward and is connected to the limit plate (12).

5. The disc-type suspension glass insulator according to claim 4, characterized in that: A sliding rod (19) is fixedly connected to the inner groove wall of the sliding groove. The sliding rod (19) is arranged to pass through the slider (18), and the slider (18) is slidably connected to the sliding rod (19).

6. The disc-type suspension glass insulator according to claim 5, characterized in that: A rolling groove is provided at one end of the slider (18), and a rolling ball (20) is provided in the rolling groove. The ball (20) passes through the notch of the rolling groove and is rollingly connected to the bottom of the sliding groove.

7. The disc-type suspension glass insulator according to claim 1, characterized in that: The lower end of the fixing rod (9) is connected to a lower baffle (21); the upper end of the umbrella skirt (2) is symmetrically connected to a clamping rod (22), and the clamping rod (22) is located on one side of the lower baffle (21); the outer side walls symmetrically on both sides of the fixing sleeve (4) are connected to second springs (23), and the other end of the second spring (23) is connected to the corresponding clamping rod (22); the upper end of the umbrella skirt (2) is symmetrically connected to two blocking frames (24), and the blocking frames (24) abut against one side of the corresponding clamping rod (23).

8. A method for using the disc-type suspension glass insulator according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: When in use, the screw rod (6) is rotated, and the screw rod (6) is moved downward by the action of the thread. When the screw rod (6) enters the thread groove (5) on the fixed column (3), the screw rod (6) continues to rotate, and the screw rod (6) is completely entered into the thread groove (5) by the action of the thread. At this time, the fixed sleeve (4) and the fixed column (3) are connected together; S2: When the screw rod (6) moves downward, the screw rod (6) also drives the fixed block (13) to move downward. When the fixed block (13) contacts the rotating rod (15), the fixed block (13) continues to move downward and exerts a force on the rotating rod (15). The rotating rod (15) rotates under the force. When the rotating rod (15) rotates, it exerts a force on the horizontal plate (16). The horizontal plate (16) moves upward under the force. The movement of the horizontal plate (16) drives the limit plate (12) to move upward. When the limit plate (12) is detached from the upper baffle (11), When the first spring (17) is released, the first spring (17) will reset, and the first spring (17) will drive the fixing rod (9) to move in the fixing tube (8). When the fixing rod (9) passes through the clamping holes (10) on the fixing column (3) and the fixing sleeve (4) in sequence, the fixing rod (9) will be inserted into the fixing column (3). At this time, the fixing sleeve (4) and the fixing column (3) are connected together. When disassembly is required, the above operation can be reversed. The above structure facilitates the installation and disassembly of the insulator, is simple and convenient to operate, saves time, and thus improves the applicability of the insulator. S3: The fixed rod (9) will also drive the lower baffle (21) to move when it moves. When the lower baffle (21) contacts the clamping rod (22), the lower baffle (21) will continue to move and will exert a force on the clamping rod (22). The clamping rod (22) will squeeze the second spring (23) under the force. The second spring (23) will be deformed under the force. When the lower baffle (21) is separated from the clamping rod (22), the second spring (23) will be reset. At this time, the clamping rod (22) will be located on the other side of the lower baffle (21), and the blocking frame (24) will also limit the clamping rod (22) to prevent the clamping rod (22) from rotating to the other side, thereby preventing the fixed rod (9) from being separated from the clamping hole (10), thereby improving the stability of the connection.

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