A quick-install charging pile
The snap-on structure, abutment structure and limit guide structure of the quick-install charging pile solve the problem of cumbersome installation of the charging pile, achieve rapid installation and disassembly, meet sudden charging needs, and are suitable for large-scale events and pilot projects.
Patent Information
- Application Number
- CN202411257463.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2044-09-09
AI Technical Summary
The installation process of existing charging piles is too cumbersome and cannot be quickly deployed in the event of sudden large-scale events or temporary increased charging demand. It cannot meet immediate charging needs and cannot quickly build pilot charging station projects, wasting time and costs.
A quick-installation charging pile is designed, which adopts a snap-on structure, a moving structure and a limit guide structure. The cooperation between the snap block and the snap groove enables quick installation and disassembly. It is fixed to the wall or temporary structure with hooks and screws, and combined with the limit guide structure and reset spring to achieve stable fixation and quick adjustment.
It enables quick installation and disassembly of charging piles to meet sudden charging needs, saving time and costs. It is suitable for quickly setting up a test environment for pilot charging station projects.
Smart Images

Figure CN118876776B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of charging piles, and in particular to a quick-installation charging pile. Background Art
[0002] Charging piles, as a facility that provides power support for electric vehicles, play an increasingly important role in today's society. They convert electricity from the power grid into electricity that can be stored and used by electric vehicles, thereby achieving the endurance and energy supply of electric vehicles.
[0003] There are many types of charging stations, which can be divided into public and private charging stations based on their installation location. Public charging stations are typically installed in public places such as parking lots, gas stations, and shopping malls, and are shared by a large number of electric vehicle users. Private charging stations, on the other hand, are more often installed in individual residences or corporate campuses, providing charging services for specific users or vehicles.
[0004] Charging piles are needed to replenish the power of new energy vehicles, but the installation process of charging piles is too cumbersome. In some cases, such as sudden large-scale events or temporary increased charging needs, ordinary charging piles cannot be deployed quickly and cannot meet immediate charging needs. At the same time, for some pilot charging station projects, ordinary charging piles cannot help quickly build a test environment, wasting time and costs. Summary of the Invention
[0005] The purpose of the present invention is to provide a quick-installation charging pile, which has the advantage of quick installation of charging piles and solves the problem that the installation process of existing charging piles is too cumbersome. In some cases, such as sudden large-scale events or temporary increased charging needs, ordinary charging piles cannot be deployed quickly and cannot meet immediate charging needs. At the same time, for some pilot charging station projects, ordinary charging piles cannot help to quickly build a test environment, wasting time and cost.
[0006] To achieve the above object, the present invention provides the following technical solution: a quick-installation charging pile, comprising a charging pile for charging, wherein one side of the charging pile is fixedly connected to a buckle structure for clamping and fixing the charging pile;
[0007] The buckle structure is provided with an abutting structure for opening the structure;
[0008] A limiting guide structure for structural limiting guidance is provided inside the abutting structure, and one side of the limiting guide structure is fixedly connected to the inside of the buckle structure;
[0009] The charging pile includes a shell body for structural protection, a controller for monitoring the charging process is arranged inside the shell body, a data processing control module is arranged inside the shell body, one end of the controller is connected to a power module, and one end of the power module is connected to a connector for transmitting power.
[0010] As a preferred quick-installation charging pile of the present invention, the snap-in structure includes a hook fixed to the wall, and the surface of the hook is provided with a limiting shell for snapping, one side of the limiting shell is fixedly connected to the surface of the shell body, and the front and rear sides of the hook are both provided with snap-in grooves, and the front and rear sides of the interior of the limiting shell are both provided with moving rods, and the side of the moving rod close to the hook is fixedly connected with a snap-in block, and the snap-in block passes through the limiting shell and extends to the inside of the snap-in groove, and the top of the moving rod is movably connected to the abutting structure, and one side of the abutting structure passes through the limiting shell and extends to the surface of the limiting shell, and the limiting guide structure is located inside the moving rod, and one side is fixedly connected to the inner wall of the limiting shell.
[0011] As a preferred quick-installation charging pile of the present invention, the abutting structure includes an abutting rod for abutting transmission, one side of the abutting rod penetrates into the interior of the limiting shell and is fixedly connected to a movable column, the surface of the movable column is movably connected to a special-shaped transmission rod, the interior of the special-shaped transmission rod is movably connected to the limiting column, one side of the limiting column is fixedly connected to the inner wall of the limiting shell, both sides of the interior of the special-shaped transmission rod are movably connected to a linkage rod through a first rotating shaft, and the side of the linkage rod away from the special-shaped transmission rod is movably connected to the top of the moving rod through a second rotating shaft.
[0012] As a preferred quick-installation charging pile of the present invention, the limiting guide structure includes a guide column for guiding the mobile rod, the guide column is located at the top and bottom inside the mobile rod, one side of the guide column is fixedly connected to the inner wall of the limiting shell, the surface of the guide column is provided with a reinforcement sleeve, the surface of the reinforcement sleeve is fixedly connected to the inside of the mobile rod, one side of the surface of the guide column is provided with a thread, and the surface of the guide column is movably connected to a movable sleeve through the thread, and one side of the movable sleeve is in contact with one side of the reinforcement sleeve.
[0013] As a preferred quick-installation charging pile of the present invention, the end of the hook that cooperates with the limit shell is at an oblique angle, one side of the bottom of the snap block is inclined and used in conjunction with the hook, and a screw is provided on the surface of the hook. The threaded end of the screw passes through the hook and extends to one side of the hook. The number of the screws is several and is evenly distributed.
[0014] As a preferred quick-installation charging pile of the present invention, a handle for moving the movable rod is fixedly connected to one side of the movable rod, and a movable groove for moving the movable column is opened inside the special-shaped transmission rod, and the surface of the movable column contacts and cooperates with the inner wall of the movable groove.
[0015] As a preferred quick-installation charging pile of the present invention, the surface of the abutting rod is provided with a stabilizing rod, the top of the stabilizing rod is fixedly connected to the inner wall of the limiting shell, and the surface of the abutting rod is provided with a ring, the surface of the ring is fixedly connected to the inside of the limiting shell.
[0016] As a preferred quick-installation charging pile of the present invention, a return spring is sleeved on the surface of the guide column, one side of the return spring is fixedly connected to the surface of the moving rod, and the other side of the return spring is fixedly connected to the inner wall of the limit shell.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The present invention sets a charging pile, a snap structure, a moving structure, a limiting guide structure, a shell body, a controller, a control module, a power module and a connector. When there is a large-scale event or a temporary increase in charging demand, the charging pile needs to be quickly installed. The charging pile can be quickly installed through the snap structure, and the new energy vehicle can be charged through the charging pile. When disassembly is required, the moving structure can be quickly disassembled, and the limiting guide structure can quickly guide the structure, which solves the problem that the installation process of the existing charging pile is too cumbersome. In some cases, such as sudden large-scale events or temporary increase in charging demand, ordinary charging piles cannot be quickly deployed in place and cannot meet immediate charging needs. At the same time, for some pilot charging station projects, ordinary charging piles cannot help to quickly build a test environment, wasting time and cost.
[0019] 2. The present invention provides a snap-on structure, which can fix the hook on a wall or a stable structure such as a temporarily built steel structure. Since the limiting shell is fixedly connected to the shell body, the limiting shell can be directly hung on the surface of the hook, and the hook pushes the snap-on block, and the snap-on block drives the moving rod to move. When the snap-on block moves to be flush with the snap-on groove, the snap-on block can be snapped into the snap-on groove to limit the hook, thereby achieving the purpose of quickly installing the charging pile.
[0020] 3. The present invention is provided with a resisting structure. When the charging pile needs to be disassembled, the resisting rod is moved, and the resisting rod drives the movable column to move. The movable column moves inside the special-shaped transmission rod, and the special-shaped transmission rod rotates around the limit column. While the special-shaped transmission rod rotates, it drives the linkage rod to move through the first rotating shaft. The linkage rod drives the moving rod to move through the second rotating shaft, so that the moving rod drives the buckle block to disengage from the buckle groove, thereby achieving the purpose of removing the charging pile.
[0021] 4. The present invention sets a limiting guide structure. When the moving rod moves, the moving rod drives the reinforcement sleeve to move, so that the reinforcement sleeve moves on the surface of the guide column, thereby achieving the purpose of limiting and guiding the moving rod. By twisting the movable sleeve, the movable sleeve is adjusted on the surface of the guide column, which can limit the moving position of the moving rod and achieve the purpose of adjusting the moving range of the moving rod.
[0022] 5. The present invention provides hooks, snap blocks and screws, and can use the hook to push the snap block, so that the snap block can drive the moving rod to move, thereby achieving the purpose of quickly installing the charging pile. The screws can conveniently fix the hook on a stable structure such as a wall or a temporary steel structure to achieve the purpose of stable fixation.
[0023] 6. The present invention can increase the contact area of the movable rod by providing a handle and a movable groove, making it convenient for users to pull and push the movable rod to achieve structural transmission. The movable groove can facilitate the movement of the movable column inside the special-shaped transmission rod.
[0024] 7. The present invention can increase the stability of the movable rod and reduce the shaking of the movable rod by providing a stabilizing rod and a collar. The collar can reduce the friction between the movable rod and the limiting shell, and at the same time increase the stability of the movement of the movable rod.
[0025] 8. The present invention can facilitate the resetting of the movable rod by providing a reset spring, thereby facilitating the movable rod to drive the buckle block to snap into the inside of the buckle groove, thereby achieving stable fixation of the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a main perspective view of the structure of the present invention;
[0027] Figure 2 This is a three-dimensional diagram from another perspective of the structure of the present invention;
[0028] Figure 3 This is a sectional perspective view of the limiting shell of the present invention;
[0029] Figure 4 This is a three-dimensional diagram of the hook of the present invention;
[0030] Figure 5 This is a three-dimensional diagram of the movable structure of the present invention;
[0031] Figure 6 A three-dimensional diagram of the actuating rod of the present invention;
[0032] Figure 7 This is a three-dimensional diagram of the connection of the special-shaped transmission rod of the present invention;
[0033] Figure 8 It is a three-dimensional diagram of the limiting guide structure of the present invention.
[0034] In the figure: 1. Charging pile; 101. Shell body; 102. Controller; 103. Control module; 104. Power module; 105. Connector; 2. Snap-on structure; 201. Hook; 202. Limiting shell; 203. Snap-on groove; 204. Moving rod; 205. Snap-on block; 3. Abutting structure; 301. Abutting rod; 302. Movable column; 303. Special-shaped transmission rod; 304. Limiting column; 305. Linking rod; 4. Limiting guide structure; 401. Guide column; 402. Reinforcement sleeve; 403. Abutting sleeve; 5. Screw; 6. Handle; 7. Moving groove; 8. Stabilizing rod; 9. Ring; 10. Reset spring. DETAILED DESCRIPTION
[0035] Example 1
[0036] See also Figures 1-8 A quick-installation charging pile includes a charging pile 1 for charging, and a buckle structure 2 for clamping and fixing the charging pile 1 is fixedly connected to one side of the charging pile 1;
[0037] The buckle structure 2 is provided with an abutting structure 3 for opening the structure;
[0038] A limiting guide structure 4 for structural limiting guidance is provided inside the abutting structure 3, and one side of the limiting guide structure 4 is fixedly connected to the inside of the buckle structure 2;
[0039] The charging pile 1 includes a housing body 101 for structural protection. A controller 102 for monitoring the charging process is provided inside the housing body 101. A control module 103 for data processing is provided inside the housing body 101. One end of the controller 102 is connected to a power module 104. One end of the power module 104 is connected to a connector 105 for transmitting power.
[0040] When there is a large-scale event or a temporary increase in charging demand, the charging pile 1 needs to be installed quickly. The charging pile 1 is quickly installed through the snap-on structure 2, and the new energy vehicle is charged through the charging pile 1. When disassembly is required, the abutment structure 3 can be quickly disassembled, and the limiting guide structure 4 can quickly guide the structure, which solves the problem that the installation process of the existing charging pile 1 is too cumbersome. In some cases, such as sudden large-scale events or temporary increase in charging demand, the ordinary charging pile 1 cannot be quickly deployed in place and cannot meet the immediate charging demand. At the same time, for some pilot charging station projects, the ordinary charging pile 1 cannot help to quickly build a test environment, wasting time and cost.
[0041] Furthermore, the snap-on structure 2 includes a hook 201 fixed to the wall, and a limiting shell 202 for snapping is provided on the surface of the hook 201, and one side of the limiting shell 202 is fixedly connected to the surface of the shell body 101, and a snap-on groove 203 is provided on the front and rear sides of the hook 201. A moving rod 204 is provided on the front and rear sides of the limiting shell 202, and a snap-on block 205 is fixedly connected to the side of the moving rod 204 close to the hook 201. The snap-on block 205 passes through the limiting shell 202 and extends to the inside of the snap-on groove 203. The top of the moving rod 204 is movably connected to the abutting structure 3, and one side of the abutting structure 3 passes through the limiting shell 202 and extends to the surface of the limiting shell 202. The limiting guide structure 4 is located inside the moving rod 204, and one side is fixedly connected to the inner wall of the limiting shell 202.
[0042] The hook 201 can be fixed on a stable structure such as a wall or a temporary steel structure. Since the limiting shell 202 is fixedly connected to the shell body 101, the limiting shell 202 can be directly hung on the surface of the hook 201. The hook 201 pushes the snap block 205, and the snap block 205 drives the moving rod 204 to move. When the snap block 205 moves to be flush with the snap groove 203, the snap block 205 can be snapped into the snap groove 203 to limit the hook 201, thereby achieving the purpose of quickly installing the charging pile 1.
[0043] Furthermore, the resisting structure 3 includes a resisting rod 301 for resisting transmission, one side of the resisting rod 301 passes through the interior of the limiting shell 202 and is fixedly connected to a movable column 302, the surface of the movable column 302 is movably connected to the special-shaped transmission rod 303, the interior of the special-shaped transmission rod 303 is movably connected to the limiting column 304, one side of the limiting column 304 is fixedly connected to the inner wall of the limiting shell 202, both sides of the interior of the special-shaped transmission rod 303 are movably connected to the linkage rod 305 through the first rotating shaft, and the side of the linkage rod 305 away from the special-shaped transmission rod 303 is movably connected to the top of the movable rod 204 through the second rotating shaft, when the charging pile 1 needs to be disassembled.
[0044] By moving the abutting rod 301, the abutting rod 301 drives the movable column 302 to move, and the movable column 302 moves inside the special-shaped transmission rod 303, and the special-shaped transmission rod 303 rotates around the limiting column 304. While the special-shaped transmission rod 303 rotates, it drives the linkage rod 305 to move through the first rotating shaft, and the linkage rod 305 drives the moving rod 204 to move through the second rotating shaft, so that the moving rod 204 drives the buckle block 205 to disengage from the buckle groove 203, thereby achieving the purpose of removing the charging pile 1.
[0045] Furthermore, the limiting guide structure 4 includes a guide column 401 for guiding the moving rod 204. The guide column 401 is located at the top and bottom of the moving rod 204. One side of the guide column 401 is fixedly connected to the inner wall of the limiting shell 202. The surface of the guide column 401 is provided with a reinforcement sleeve 402. The surface of the reinforcement sleeve 402 is fixedly connected to the interior of the moving rod 204. One side of the surface of the guide column 401 is provided with a thread. The surface of the guide column 401 is movably connected to a movable sleeve 403 through a thread. One side of the movable sleeve 403 is in contact with one side of the reinforcement sleeve 402.
[0046] When the moving rod 204 moves, the moving rod 204 drives the reinforcement sleeve 402 to move, so that the reinforcement sleeve 402 moves on the surface of the guide column 401, thereby achieving the purpose of limiting and guiding the moving rod 204. By twisting the movable sleeve 403, the movable sleeve 403 is adjusted on the surface of the guide column 401, and the moving position of the moving rod 204 can be limited, thereby achieving the purpose of adjusting the moving range of the moving rod 204.
[0047] Furthermore, one end of the hook 201 that cooperates with the limit shell 202 is at an oblique angle, and one side of the bottom of the snap block 205 is inclined and used in conjunction with the hook 201. A screw 5 is provided on the surface of the hook 201, and the threaded end of the screw 5 passes through the hook 201 and extends to one side of the hook 201. The number of screws 5 is several and evenly distributed.
[0048] The hook 201 can be used to push the buckle block 205, so that the buckle block 205 can drive the movable rod 204 to move, thereby achieving the purpose of quickly installing the charging pile 1. The screw 5 can conveniently fix the hook 201 on a stable structure such as a wall or a temporary steel structure to achieve the purpose of stable fixation.
[0049] Furthermore, a handle 6 for moving the movable rod 301 is fixedly connected to one side of the movable rod 301, and a movable groove 7 for moving the movable column 302 is opened inside the special-shaped transmission rod 303, and the surface of the movable column 302 contacts and cooperates with the inner wall of the movable groove 7.
[0050] It can increase the contact area of the movable rod 301, making it easier for users to pull and push the movable rod 301 to achieve structural transmission. The movable groove 7 can facilitate the movement of the movable column 302 inside the special-shaped transmission rod 303.
[0051] Furthermore, a stabilizing rod 8 is sleeved on the surface of the movable rod 301 , and the top of the stabilizing rod 8 is fixedly connected to the inner wall of the limiting shell 202 . A ring 9 is sleeved on the surface of the movable rod 301 , and the surface of the ring 9 is fixedly connected to the inside of the limiting shell 202 .
[0052] The stability of the abutting rod 301 can be increased and the shaking of the abutting rod 301 can be reduced. The collar 9 can reduce the friction between the abutting rod 301 and the limiting shell 202 and increase the stability of the movement of the abutting rod 301.
[0053] Furthermore, a return spring 10 is sleeved on the surface of the guide column 401 , one side of the return spring 10 is fixedly connected to the surface of the moving rod 204 , and the other side of the return spring 10 is fixedly connected to the inner wall of the limiting shell 202 .
[0054] The movable rod 204 can be easily reset, so that the movable rod 204 can drive the buckle block 205 to snap into the inside of the buckle groove 203, thereby achieving stable fixation of the charging pile 1.
[0055] Working principle of the present invention:
[0056] When there is a large-scale event or a temporary increase in charging demand, the charging pile 1 needs to be installed quickly, and the hook 201 is fixed to a stable structure such as a wall or a temporary steel structure. Since the limiting shell 202 is fixedly connected to the shell body 101, the limiting shell 202 is directly hung on the surface of the hook 201, and the hook 201 pushes the buckle block 205, and the buckle block 205 drives the moving rod 204 to move, and the moving rod 204 pushes the return spring 10 to shrink. When the buckle block 205 moves to be flush with the buckle groove 203, the return spring 10 rebounds the moving rod 204, and the moving rod 204 drives the buckle block 205 to move, and the buckle block 205 is snapped into the buckle groove 203 to limit the hook 201, so as to achieve the purpose of quickly installing the charging pile 1. When the charging pile 1 needs to be disassembled, the handle 6 is pushed, and the handle 6 drives the abutting rod 301 to move, and the abutting rod 301 is brought When the movable column 302 moves, the movable column 302 moves inside the special-shaped transmission rod 303, and the special-shaped transmission rod 303 rotates around the limit column 304. While the special-shaped transmission rod 303 rotates, the linkage rod 305 is driven to move through the first rotating shaft, and the linkage rod 305 drives the movable rod 204 to move through the second rotating shaft, so that the movable rod 204 drives the buckle block 205 to disengage from the buckle groove 203, so as to achieve the purpose of removing the charging pile 1. When the movable rod 204 moves, the movable rod 204 drives the reinforcement sleeve 402 to move, so that the reinforcement sleeve 402 moves on the surface of the guide column 401, so as to achieve the purpose of limiting and guiding the movable rod 204. By twisting the movable sleeve 403, the movable sleeve 403 is adjusted on the surface of the guide column 401, so as to limit the moving position of the movable rod 204. In the above manner, the purpose of quickly installing the charging pile 1 is achieved.
[0057] Since the connection method, installation method and usage method of electrical components such as the controller 102, control module 103, power module 104 and connector 105 in the shell body 101 are common knowledge in the charging pile field, no excessive technical description is provided in this application document.
[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A quick-installation charging pile, comprising a charging pile (1) for charging, characterized in that: A buckle structure (2) for clamping and fixing the charging pile (1) is fixedly connected to one side of the charging pile (1); The buckle structure (2) is provided with an abutting structure (3) for opening the structure. A position limiting guide structure (4) for structural position limiting guidance is provided inside the abutting structure (3), and one side of the position limiting guide structure (4) is fixedly connected to the inside of the buckle structure (2); The charging pile (1) comprises a shell body (101) for structural protection, a controller (102) for monitoring the charging process is provided inside the shell body (101), a data processing control module (103) is provided inside the shell body (101), one end of the controller (102) is connected to a power module (104), and one end of the power module (104) is connected to a connector (105) for transmitting power; The buckle structure (2) comprises a hook (201) fixed to a wall, a limiting shell (202) for buckling is provided on the surface of the hook (201), one side of the limiting shell (202) is fixedly connected to the surface of the shell body (101), a buckle groove (203) is provided on the front and rear sides of the hook (201), and a moving rod (204) is provided on the front and rear sides of the interior of the limiting shell (202), and the moving rod (204) is close to the hook (201). ) is fixedly connected to one side of the movable rod (204) with a snap block (205), the snap block (205) passes through the limiting shell (202) and extends to the inside of the snap groove (203), the top of the movable rod (204) is movably connected to the abutting structure (3), one side of the abutting structure (3) passes through the limiting shell (202) and extends to the surface of the limiting shell (202), the limiting guide structure (4) is located inside the movable rod (204), and one side is fixedly connected to the inner wall of the limiting shell (202); The abutting structure (3) includes an abutting rod (301) for abutting transmission, one side of the abutting rod (301) penetrates into the interior of the limiting shell (202) and is fixedly connected to a movable column (302), the surface of the movable column (302) is movably connected to a special-shaped transmission rod (303), the interior of the special-shaped transmission rod (303) is movably connected to a limiting column (304), one side of the limiting column (304) is fixedly connected to the inner wall of the limiting shell (202), both sides of the interior of the special-shaped transmission rod (303) are movably connected to a linkage rod (305) via a first rotating shaft, and the side of the linkage rod (305) away from the special-shaped transmission rod (303) is movably connected to the top of the moving rod (204) via a second rotating shaft; The limiting guide structure (4) includes a guide column (401) for guiding the moving rod (204), the guide column (401) is located at the top and bottom of the moving rod (204), one side of the guide column (401) is fixedly connected to the inner wall of the limiting shell (202), the surface of the guide column (401) is provided with a reinforcement sleeve (402), the surface of the reinforcement sleeve (402) is fixedly connected to the inside of the moving rod (204), one side of the surface of the guide column (401) is provided with a thread, the surface of the guide column (401) is movably connected to a movable sleeve (403) through the thread, and one side of the movable sleeve (403) is in contact with one side of the reinforcement sleeve (402).
2. A quick-install charging pile according to claim 1, characterized in that: One end of the hook (201) that cooperates with the limiting shell (202) is at an oblique angle, and one side of the bottom of the buckle block (205) is inclined and used in conjunction with the hook (201). A screw (5) is provided on the surface of the hook (201), and the threaded end of the screw (5) passes through the hook (201) and extends to one side of the hook (201). The number of the screws (5) is several and evenly distributed.
3. The quick-install charging pile according to claim 1, characterized in that: A handle (6) for moving the movable rod (301) is fixedly connected to one side of the movable rod (301), and a movable groove (7) for moving the movable column (302) is provided inside the special-shaped transmission rod (303), and the surface of the movable column (302) contacts and cooperates with the inner wall of the movable groove (7).
4. The quick-install charging pile according to claim 1, characterized in that: The surface of the abutting rod (301) is sleeved with a stabilizing rod (8), the top of which is fixedly connected to the inner wall of the limiting shell (202), and the surface of the abutting rod (301) is sleeved with a collar (9), the surface of which is fixedly connected to the interior of the limiting shell (202).
5. The quick-install charging pile according to claim 1, characterized in that: A return spring (10) is sleeved on the surface of the guide column (401), one side of the return spring (10) is fixedly connected to the surface of the moving rod (204), and the other side of the return spring (10) is fixedly connected to the inner wall of the limiting shell (202).
Citation Information
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