Oiling device for shock absorber of electric vehicle
By designing a clamping block structure consisting of a connecting block, a limiting block, and a rotating shaft in the oil injection device of the electric vehicle shock absorber, the problem of inconvenient replacement caused by wear of the clamping parts is solved, and the quick loading and unloading of the clamping block and the stability and efficiency of oil injection are improved.
Patent Information
- Application Number
- CN202520360725.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In existing electric vehicle shock absorber lubrication devices, the locking components wear out after long-term use, making replacement inconvenient and affecting the convenience and work efficiency of staff.
A clamping block structure including a connecting block, a limiting block, and a rotating shaft was designed to enable quick loading and unloading of the clamping block, and to improve the stability and efficiency of oil injection through an oil injection component and a fixing component.
It enables quick replacement of clamping blocks, improves the convenience for staff and the efficiency of oil injection, and ensures the stability and reliability of the shock absorber during the oil injection process.
Smart Images

Figure CN223894864U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of shock absorber oil injection device, and relates to an electric vehicle shock absorber oil injection device. Background Technology
[0002] During the production and assembly process of electric vehicles and motorcycles, a certain amount of damping oil needs to be injected into the damping tube of the shock absorber to ensure the damping effect of the shock absorber.
[0003] Chinese utility model patent CN213206415U discloses an automatic oil injection device for shock absorbers, including a frame with an oil injection ramp on one side, the ramp sloping outwards from top to bottom; a top locking component with a top locking groove is located above the ramp; a support plate is located below the ramp; an oil injection sensor button is located between the top locking component and the support plate; an oil reservoir is located above the frame, and an oil injection nozzle is located below the reservoir, directly above the top locking groove. In this design, the locking component may wear down over time, affecting its locking effect, necessitating replacement. However, this design lacks a structure for easy replacement of the locking component, potentially hindering the convenience of replacement for operators. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes an oil injection device for electric vehicle shock absorbers, which effectively solves the problems in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an electric vehicle shock absorber oil injection device includes a workbench. Two through oil injection grooves are symmetrically opened on the left and right sides of the workbench. The oil injection grooves are connected to the front side of the workbench. A first electric telescopic rod and a mounting plate are respectively arranged on the left and right sides of the oil injection grooves. Two connecting blocks are symmetrically arranged on the opposite sides of the mounting plate and the first electric telescopic rod. Two clamping blocks are symmetrically inserted into the opposite sides of the two connecting blocks. Semi-circular fixing grooves are opened on the opposite sides of the two clamping blocks. The two fixing grooves can cooperate to form a circular through hole. A limiting block is rotatably connected to the upper side of the connecting block. A semi-circular recess is opened on the upper side of the clamping block. The limiting block can be rotatably inserted into the semi-circular recess. A limiting groove is opened on the upper side of the limiting block. A rotating groove communicating with the limiting groove is opened on the upper side of the clamping block. A rotating column that can be rotatably inserted into the limiting groove is rotatably connected in the rotating groove.
[0006] An oil injection assembly is provided on the side of the workbench;
[0007] The front side of the workbench is provided with a lifting cavity, and a fixing component for fixing the lower end of the shock absorber is provided inside the lifting cavity.
[0008] Furthermore, a spherical recess is formed on the lower side of the limiting groove away from the rotating groove.
[0009] Furthermore, the oil injection assembly includes two mounting plates on the left and right sides of the workbench, a lead screw rotatably connected to the opposite sides of the two mounting plates, a displacement block threadedly connected to the lead screw, and a lead screw motor mounted on the side of one of the mounting plates. The output shaft of the lead screw motor passes through the mounting plate and is connected to one end of the lead screw. Guide plates are provided on the front and rear sides of the two mounting plates. The displacement block is slidably connected to the guide plates. A fixing block is provided on the upper side of the displacement block. An oil delivery pipe is sandwiched between the displacement block and the fixing block. An oil injection head is provided at the front end of the oil delivery pipe. The axis of the output end of the oil injection head and the center line of the clamping block are located on the same vertical plane. An oil delivery assembly is connected to the rear end of the oil delivery pipe.
[0010] Furthermore, the oil delivery assembly includes an oil delivery hose disposed at the rear end of the oil delivery pipe, the other end of the oil delivery hose being connected to an oil injection pump, and a control switch electrically connected to the oil injection pump being disposed on the side of the workbench.
[0011] Furthermore, a fixing groove with a triangular cross-section is provided on the lower side of the fixing block, and the oil pipeline is located in the fixing groove.
[0012] Furthermore, the fixing assembly includes a lifting plate that is slidably connected to the lifting cavity, four guide columns arranged in a rectangular array within the lifting cavity, and a second electric telescopic rod disposed on the lower side of the lifting cavity. The lifting plate is slidably connected to the guide columns, and the output shaft of the second electric telescopic rod is connected to the lower side of the lifting plate. Two fixing seats are symmetrically arranged on the upper side of the lifting plate, and the centers of the two fixing seats are respectively located on the same axis as the centers of the two circular through holes.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This utility model enables quick loading and unloading of the clamping block through the connecting block, limiting block, and rotating shaft, improving the convenience for workers when replacing the clamping block. The oil injection component enables quick oil injection of the shock absorber, improving the work efficiency of workers when oiling the shock absorber. The fixing component fixes the lower end of the shock absorber, ensuring the stability of the shock absorber during oil injection. Attached Figure Description
[0015] Figure 1 This is a front view of the present utility model;
[0016] Figure 2This is a top view of the present invention;
[0017] Figure 3 This utility model Figure 1 A schematic diagram of the clamping block structure;
[0018] Figure 4 This utility model Figure 2 A magnified view of part A.
[0019] In the diagram: 1. Workbench; 101. Oil filling tank; 2. First electric telescopic rod; 3. Connecting block; 4. Clamping block; 401. Rotating groove; 5. Oil filling head; 6. Control switch; 7. Mounting plate; 8. Oil filling pump; 9. Oil delivery hose; 10. Mounting plate; 11. Lead screw; 12. Lead screw motor; 13. Guide plate; 14. Fixing block; 15. Oil delivery pipe; 16. Displacement block; 17. Lifting plate; 18. Fixing seat; 19. Second electric telescopic rod; 20. Guide column; 21. Limiting block; 211. Limiting groove; 212. Spherical recess; 22. Rotating column. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1-4 As shown, an electric vehicle shock absorber oil injection device includes a workbench 1. Two through oil injection grooves 101 are symmetrically opened on the upper side of the workbench 1. The oil injection grooves 101 are connected to the front side of the workbench 1. A first electric telescopic rod 2 and a mounting plate 7 are respectively installed on the left and right sides of the oil injection grooves 101 by bolts. Two connecting blocks 3 are symmetrically arranged on the opposite sides of the mounting plate 7 and the first electric telescopic rod 2 by bolts. Two clamping blocks 4 are symmetrically inserted into the opposite sides of the two connecting blocks 3. Semi-circular fixing grooves are opened on the opposite sides of the two clamping blocks 4. The two fixing grooves can cooperate to form a circular through hole. A limiting block 21 is rotatably connected to the upper side of the connecting block 3 by a bearing. A semi-circular recess is opened on the upper side of the clamping block 4. The limiting block 21 can be rotatably inserted into the semi-circular recess. A limiting groove 211 is opened on the upper side of the limiting block 21. A rotating groove 401 communicating with the limiting groove 211 is opened on the upper side of the clamping block 4. A rotating column 22 that can be rotatably inserted into the limiting groove 211 is hinged in the rotating groove 401.
[0022] An oil injection assembly is provided on the side of the workbench 1;
[0023] The front side of the workbench 1 has a lifting cavity, and a fixing component for fixing the lower end of the shock absorber is installed inside the lifting cavity.
[0024] During use, the operator places the shock absorber between the fixing slots of the two clamping blocks 4 and controls the first electric telescopic rod 2 to push the two clamping blocks 4 closer together, so that the shock absorber is clamped in the circular through hole between the two clamping blocks 4. Then, the operator fixes the lower end of the shock absorber with the fixing component, which further increases the stability of the shock absorber in the oil injection device. Finally, the operator injects oil into the shock absorber with the oil injection component. After the oil injection is completed, the operator controls the first electric telescopic rod 2 to drive the clamping blocks 4 to reset, so that the clamping blocks 4 no longer limit the shock absorber. Finally, the oiled shock absorber can be removed from the fixing component.
[0025] When it is necessary to replace clamping block 4, the operator rotates the rotating column 22 upwards so that the rotating column 22 is no longer inserted into the limiting groove 211. Then, the operator rotates the limiting block 21 so that the limiting block 21 is no longer inserted into the semi-circular recess. At this time, the limiting block 21 no longer limits clamping block 4. Then, the operator can grab clamping block 4 and pull it out from the upper side of connecting block 3, and re-insert the new clamping block 4 into connecting block 3. After insertion, the operator rotates the limiting block 21 in the opposite direction so that the limiting block 21 is inserted into the semi-circular recess. Then, the operator rotates the rotating column 22 downwards so that the rotating column 22 is inserted into the limiting groove 211 to limit the limiting block 21, preventing the limiting block 21 from rotating. This ensures the reliability of clamping block 4 during use and improves the work efficiency of the operator when replacing clamping block 4.
[0026] In this embodiment, a spherical recess 212 is provided on the lower side of the limiting groove 211 away from the rotating groove 401. When in use, the operator can extend their fingers into the spherical recess 212 to lift the rotating column 22, which improves the convenience of the operator when rotating the rotating column 22.
[0027] In this embodiment, the oil injection assembly includes two mounting plates bolted to the sides of the worktable 1, a lead screw 11 rotatably connected to the opposite sides of the two mounting plates via bearings, a displacement block 16 threaded onto the lead screw 11, and a lead screw motor 12 bolted to the side of one of the mounting plates. The output shaft of the lead screw motor 12 passes through the mounting plate and is connected to one end of the lead screw 11. Guide plates 13 are bolted to the front and rear sides of both mounting plates. The displacement block 16 is slidably connected to the guide plate 13 via a slider and a slide groove. A fixing block 14 is bolted to the upper side of the displacement block 16. The displacement block 16 and the fixing block 14 are connected... An oil supply pipe 15 is provided in the clamp, and an oil injection head 5 is provided at the front end of the oil supply pipe 15. The axis of the output end of the oil injection head 5 is located on the same vertical plane as the center line of the clamping block 4. An oil supply assembly is connected to the rear end of the oil supply pipe 15. In use, the operator can drive the lead screw 11 to rotate through the lead screw motor 12. Under the action of the thread, the displacement block 16 can drive the oil injection head 5 to move left and right along the lead screw 11. When oiling the shock absorber, the operator controls the lead screw motor 12 to move the oil injection head 5 directly above the shock absorber. Then, under the action of the oil supply assembly, the oil injection head 5 injects oil into the shock absorber, ensuring the reliability of the oil injection device when oiling the shock absorber.
[0028] In this embodiment, the oil delivery assembly includes an oil delivery hose 9 located at the rear end of the oil delivery pipe 15. The other end of the oil delivery hose 9 is connected to an oil injection pump 8. A control switch 6 electrically connected to the oil injection pump 8 is installed on the upper side of the workbench 1 by bolts. In use, the operator can control the oil injection pump 8 to deliver oil through the control switch 6, which improves the convenience of the operator when controlling the oil delivery device.
[0029] In this embodiment, a fixing groove with a triangular cross-section is provided on the lower side of the fixing block 14, and the oil pipe 15 is located in the fixing groove. In use, the fixing groove can increase the contact area between the oil pipe 15 and the fixing block 14, and improve the stability of the oil pipe 15 between the fixing block 14 and the displacement block 16.
[0030] In this embodiment, the fixing assembly includes a lifting plate 17 slidably connected to the lifting cavity, four guide columns 20 arranged in a rectangular array within the lifting cavity, and a second electric telescopic rod 19 bolted to the lower side of the lifting cavity. The lifting plate 17 is slidably connected to the guide columns 20, and the output shaft of the second electric telescopic rod 19 is connected to the lower side of the lifting plate 17. Two fixing seats 18 are symmetrically arranged on the upper side of the lifting plate 17 by bolts. The centers of the two fixing seats 18 are respectively located on the same axis as the centers of the two circular through holes. In use, the operator controls the second electric telescopic rod 19 to push the lifting plate 17 upward, so that the lower end of the shock absorber is inserted into the fixing seat 18, thereby achieving the fixed limit of the lower end of the shock absorber and further ensuring the reliability of the shock absorber during oil filling.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An oil injection device for an electric vehicle shock absorber, comprising a workbench, characterized in that: Two through-holes are symmetrically arranged on the left and right sides of the workbench. The oil filling grooves are connected to the front side of the workbench. A first electric telescopic rod and a mounting plate are respectively arranged on the left and right sides of the oil filling grooves. Two connecting blocks are symmetrically arranged on the opposite sides of the mounting plate and the first electric telescopic rod. Two clamping blocks are symmetrically inserted into the opposite sides of the two connecting blocks. Semi-circular fixing grooves are opened on the opposite sides of the two clamping blocks. The two fixing grooves can cooperate to form a circular through hole. A limiting block is rotatably connected to the upper side of the connecting block. A semi-circular recess is opened on the upper side of the clamping block. The limiting block can be rotatably inserted into the semi-circular recess. A limiting groove is opened on the upper side of the limiting block. A rotating groove communicating with the limiting groove is opened on the upper side of the clamping block. A rotating column that can be rotatably inserted into the limiting groove is rotatably connected in the rotating groove. An oil injection assembly is provided on the side of the workbench; The front side of the workbench is provided with a lifting cavity, and a fixing component for fixing the lower end of the shock absorber is provided inside the lifting cavity.
2. The electric vehicle shock absorber oil injection device according to claim 1, characterized in that: A spherical sink groove is provided on the lower side of the limiting groove away from the rotating groove.
3. The electric vehicle shock absorber oil injection device according to claim 1, characterized in that: The oil injection assembly includes two mounting plates on the left and right sides of the workbench, a lead screw rotatably connected to the opposite sides of the two mounting plates, a displacement block threaded onto the lead screw, and a lead screw motor mounted on the side of one of the mounting plates. The output shaft of the lead screw motor passes through the mounting plate and is connected to one end of the lead screw. Guide plates are provided on the front and rear sides of the two mounting plates. The displacement block is slidably connected to the guide plates. A fixing block is provided on the upper side of the displacement block. An oil delivery pipe is sandwiched between the displacement block and the fixing block. An oil injection head is provided at the front end of the oil delivery pipe. The axis of the output end of the oil injection head and the center line of the clamping block are located on the same vertical plane. An oil delivery assembly is connected to the rear end of the oil delivery pipe.
4. The electric vehicle shock absorber oil injection device according to claim 3, characterized in that: The oil delivery assembly includes an oil delivery hose located at the rear end of the oil delivery pipe, and an oil injection pump connected to the other end of the oil delivery hose. A control switch electrically connected to the oil injection pump is provided on the side of the workbench.
5. The electric vehicle shock absorber oil injection device according to claim 3, characterized in that: The lower side of the fixing block has a fixing groove with a triangular cross-section, and the oil pipeline is located in the fixing groove.
6. The electric vehicle shock absorber oil injection device according to claim 1, characterized in that: The fixing assembly includes a lifting plate that is slidably connected to the lifting cavity, four guide columns arranged in a rectangular array in the lifting cavity, and a second electric telescopic rod arranged on the lower side of the lifting cavity. The lifting plate is slidably connected to the guide columns, and the output shaft of the second electric telescopic rod is connected to the lower side of the lifting plate. Two fixing seats are symmetrically arranged on the upper side of the lifting plate, and the centers of the two fixing seats are respectively located on the same axis as the centers of the two circular through holes.
Citation Information
Patent Citations
Automatic oil injection device of shock absorber
CN213206415U