Quick dismounting structure of vehicle end damper

Abstract

The application discloses a kind of quick dismounting structures of vehicle end damper, belong to vehicle-mounted damper technical field, including damper main body and two pedestals, two pedestals are fixedly connected on vehicle body, and two pedestals are rotatably connected with shaft body;Two ends of damper main body are fixedly connected with end block respectively;Among them, connecting wheel is provided on shaft body, and the outer contour of connecting wheel includes two opposite and concentric arc surfaces, two opposite planes, and the spacing of two planes is less than the diameter of arc surface;End block is provided with rotation slot matched with the arc surface of connecting wheel, and the width of the notch on one side of rotation slot is greater than or equal to the spacing of two planes of connecting wheel.The present application drives special-shaped connecting wheel by rotating shaft body to complete clamping and unlocking action, i.e., the dismounting operation of damper main body can be completed, which greatly reduces the time cost of vehicle operation and maintenance.

Description

Technical Field

[0001] This invention relates to a quick-release and installation structure for a vehicle-end damper, belonging to the technical field of vehicle-mounted dampers. Background Technology

[0002] Currently, most dampers used in vehicles are connected to the vehicle body mounting surface by directly inserting multiple sets of bolts through the damper end seat. During disassembly and assembly, multiple bolts need to be tightened one by one, which is not only time-consuming, but also further prolongs the disassembly and assembly time due to the limited space of tools such as wrenches in the limited space of the vehicle maintenance site. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a quick-assembly and disassembly structure for vehicle-end dampers. By using the irregularly shaped connecting wheel on the base to form a rotating engagement with the groove and notch of the damper end block, the damper body can be quickly assembled and disassembled without completely disassembling the fasteners, significantly improving maintenance efficiency.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a quick-release and disassembly structure for a vehicle-end damper, comprising: Damper body; Two bases are fixedly connected to the vehicle body, and each of the two bases is rotatably connected to a shaft. Two end blocks are fixedly connected to both ends of the damper body; The shaft is provided with a connecting wheel, and the outer contour of the connecting wheel includes two opposite and concentric arc surfaces and two opposite planes. The distance between the two planes is less than the diameter of the arc surfaces. The end block has a rotating groove that matches the arc surface of the connecting wheel, and one side of the rotating groove has a notch with a width greater than or equal to the distance between the two planes of the connecting wheel.

[0005] Preferably, a limiting rod is fixedly connected to the middle of the shaft, one end of the limiting rod is fixed to one of the arc surfaces of the connecting wheel, and a receiving groove is formed on the end block along the length direction of the damper body; When the arc surface of the connecting wheel is directly opposite the notch, the limiting rod is perpendicular to the damper body; When the plane of the connecting wheel is aligned with the notch, the limiting rod is engaged in the receiving groove.

[0006] Preferably, a sliding frame is slidably connected to the end block by an elastic element, and a locking rod is provided on the sliding frame. A locking groove is provided at the end of the limiting rod away from the connecting wheel. When the limiting rod is rotated into the receiving groove, the locking rod engages in the locking groove to lock the limiting rod into the receiving groove.

[0007] Preferably, the elastic element comprises: A spring, wherein the spring is disposed within the sliding frame; A push rod slides within a sliding frame, with one end of the push rod abutting against a spring and the other end of the push rod passing through the sliding frame and abutting against the side wall of the end block.

[0008] Preferably, a pry block is fixedly connected to the sliding frame, and a prying opening is provided on the side wall of the end block, with a guide inclined wall provided on the side wall of the prying opening.

[0009] Preferably, the end of the shaft is provided with a hexagonal groove, which is adapted to be inserted with a hexagonal wrench to drive the shaft to rotate, thereby causing the limiting rod to rotate out of or into the receiving groove.

[0010] Preferably, both sides of the notch are provided with guide chamfers, and the inclination angle of the guide chamfers is 30°-60°, so that the connecting wheel can slide into the notch along the chamfered surface.

[0011] Preferably, the sliding frame is provided with guide protrusions on both sides, and the end block is provided with guide grooves that are adapted to the guide protrusions. The sliding frame slides in a straight line along the extension direction of the guide grooves.

[0012] Preferably, the opening of the slot is provided with a transition rounded corner, which facilitates the locking rod to slide into the slot along the rounded corner surface.

[0013] Preferably, both mounting surfaces of the bases are provided with positioning bosses, and the vehicle body is provided with positioning grooves that are adapted to the positioning bosses. The bases are fixed to the vehicle body by bolts or welding after being fitted into the positioning bosses.

[0014] Compared with existing technologies: 1. This invention completes the disassembly and assembly of the damper body by rotating the shaft to drive the irregularly shaped connecting wheel to complete the locking and unlocking actions. The entire process does not require tightening the multiple sets of fasteners used to fix the damper body, reducing the time cost of vehicle maintenance and adapting to the confined space of disassembly and assembly. At the same time, the addition of a circumferential limiting structure with a limiting rod and a receiving groove, combined with the locking cooperation between the sliding frame locking rod driven by the elastic element and the locking groove at the end of the limiting rod, forms a double anti-loosening locking mechanism. The alternating vibration continuously generated during vehicle operation cannot cause the shaft to rotate and loosen, avoiding the safety hazard of the damper accidentally falling off during operation. The overall structure is simple and reliable, and the disassembly and assembly operation does not require special customized tooling. Ordinary vehicle tools can be used to complete the operation, effectively reducing the operation threshold for maintenance personnel.

[0015] 2. This invention, by adding a circumferential limiting structure of a limiting rod and a receiving groove, and combining it with the locking cooperation between the sliding frame locking rod driven by the elastic element and the locking groove at the end of the limiting rod, forms a double anti-loosening locking mechanism. The alternating vibration continuously generated during vehicle operation cannot cause the axle to rotate and loosen, thus eliminating the safety hazard of the damper accidentally coming off during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is an exploded view of the damper body and base of the present invention.

[0018] Figure 3 This is an exploded view of the base, shaft, and end block of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the shaft, limiting rod, and end block of the present invention. Figure 1 .

[0020] Figure 5 This is a schematic diagram of the structure of the shaft, limiting rod, and end block of the present invention. Figure 2 .

[0021] Figure 6 This is an exploded view of the defining rod, end block, snap-fit ​​rod, and pry bar of the present invention.

[0022] Figure 7 This is a cross-sectional view of the base, connecting wheel, limiting rod, and end block of the present invention.

[0023] Figure 8 This is a schematic diagram showing the state of the locking rod of the present invention when it is disengaged from the locking slot.

[0024] Figure 9 This is a cross-sectional view of the snap-fit ​​rod, pry bar, and guide ridge of the present invention.

[0025] In the picture: 1. Damper body; 2. Base; 201. Shaft; 202. Connecting wheel; 203. Limiting rod; 204. Slot; 205. Sink; 206. Positioning boss; 3. End block; 301. Rotary groove; 302. Notch; 303. Receiving groove; 304. Prying opening; 305. Guide inclined wall; 306. Guide slide; 4. Sliding frame; 401. Snap-fit ​​rod; 402. Pry bar; 403. Guide protrusion; 5. Elastic element; 501. Spring; 502. Top rod. Detailed Implementation

[0026] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0027] Example 1 like Figures 1-9 As shown in this embodiment, a quick-release structure for a vehicle-end damper is provided, including a damper body 1 and two bases 2. The mounting surfaces of the two bases 2 are provided with positioning bosses 206, and the vehicle body is provided with positioning grooves that are adapted to the positioning bosses 206. After the bases 2 are fitted into the vehicle body through the positioning bosses 206, they are fixed by bolts or welding. The two bases 2 are rotatably connected to shafts 201. The two ends of the damper body 1 are respectively fixedly connected to metal end blocks 3 by welding or high-strength bolts. The end blocks 3 are made of heat-treated alloy steel and have sufficient structural strength to withstand the alternating loads during the operation of the damper.

[0028] The shaft 201 is provided with a connecting wheel 202. The outer contour of the connecting wheel 202 includes two opposite and concentric arc surfaces and two opposite planes. The distance between the two planes is less than the diameter of the arc surfaces. The end block 3 is provided with a rotating groove 301 that is adapted to the arc surface of the connecting wheel 202. A notch 302 with a width greater than or equal to the distance between the two planes of the connecting wheel 202 is provided on one side of the rotating groove 301. Both sides of the notch 302 are provided with guide chamfers, and the inclination angle of the guide chamfers is 30°-60°, so that the connecting wheel 202 can slide into the notch 302 along the chamfer surface.

[0029] During actual installation, the two bases 2 are first fitted into the pre-set positioning grooves on the vehicle body via positioning bosses 206 to fix the bases 2, ensuring that the distance between the two bases 2 is perfectly matched with the distance between the end blocks 3 at both ends of the damper body 1. Then, the shaft 201 is rotated to drive the connecting wheel 202 to rotate, so that one arc surface of the connecting wheel 202 is completely aligned with the notch 302. At this time, the damper body 1 is moved axially to allow the connecting wheel 202 to smoothly enter the rotating groove 301 from the notch 302 along the guide chamfer. Then, the shaft 201 is rotated to make the connecting wheel 202 rotate synchronously in the rotating groove 301 until one plane of the connecting wheel 202 is completely aligned with the notch 302. At this time, the arc surface of the connecting wheel 202 is completely engaged with the inner wall of the rotating groove 301, and the connecting wheel 202 is completely confined inside the rotating groove 301 and cannot be removed, thus completing the installation of the damper. During disassembly, the shaft 201 is rotated 90° in the opposite direction to realign the arc surface of the connecting wheel 202 with the notch 302. At this point, the damper body 1 can be pulled out directly, allowing the connecting wheel 202 to be smoothly removed from the rotating groove 301. No bolts used to fix the damper body need to be tightened throughout the process, thus improving the efficiency of disassembly and assembly.

[0030] Example 2 like Figures 2-8As shown, based on Embodiment 1, in this embodiment, in order to confine the connecting wheel 202 within the rotating groove 301, a limiting rod 203 is fixedly connected to the middle of the shaft 201. One end of the limiting rod 203 is fixed to one of the arc surfaces of the connecting wheel, and a receiving groove 303 is provided on the end block 3 along the length direction of the damper body 1. When the arc surface of the connecting wheel 202 is directly opposite the notch 302, the limiting rod 203 is perpendicular to the damper body 1. When the plane of the connecting wheel 202 is directly opposite the notch 302, the limiting rod 203 is inserted into the receiving groove 303.

[0031] In order to engage the limiting rod 203 in the receiving groove 303, a sliding frame 4 is slidably connected to the end block 3 via an elastic member 5. The sliding frame 4 has guide protrusions 403 on both sides. The end block 3 has a guide groove 306 that matches the guide protrusions 403. The sliding frame 4 slides linearly along the extension direction of the guide groove 306. A locking rod 401 is provided on the sliding frame 4. A locking groove 204 is provided at the end of the limiting rod 203 away from the connecting wheel 202. When the limiting rod 203 is rotated into the receiving groove 303, the locking rod 401 is locked in the locking groove 204 to lock the limiting rod 203 into the receiving groove 303. The opening of the locking groove 204 is provided with a transition rounded corner with a radius of 1mm-3mm to facilitate the locking rod 401 to slide into the inside of the locking groove 204 along the rounded corner surface.

[0032] Example 3 like Figures 2-8As shown, this embodiment further optimizes the elastic locking structure and unlocking operation structure based on the structure of embodiment two. The elastic element 5 includes a spring 501 and a push rod 502. The spring 501 is pre-installed in the internal cavity of the sliding frame 4. The push rod 502 is slidably assembled at the end of the sliding frame 4. One end of the push rod 502 abuts against the end face of the spring 501, and the other end of the push rod 502 passes through the sliding frame 4 and abuts against the inner side wall of the end block 3. The pre-tightening force of the spring 501 continuously provides a stable sliding driving force for the sliding frame 4, ensuring that the locking rod 401 always maintains the locking tendency to move closer to the slot 204. The sliding frame 4 is equipped with a pry bar 402, and the side wall of the end block 3 has a pry opening 304 communicating with the outside. The side wall of the pry opening 304 is machined with an inclined guide wall 305. When the locking rod 401 is fully engaged in the slot 204, the inner end of the guide wall 305 is in the gap between the pry bar 402 and the push rod 502. In actual unlocking operation, the blade of a flathead screwdriver is inserted into the pry opening 304 with the guide wall 305 as the fulcrum. Then, the handle of the flathead screwdriver is rotated with the guide wall 305 as the fulcrum. The screwdriver blade will directly push the pry bar 402 to drive the entire sliding frame 4 to slide in the opposite direction, thereby allowing the locking rod 401 to quickly disengage from the slot 204. The unlocking operation can be completed without the use of special tools. Meanwhile, the outer end of the shaft 201 is provided with an internal hexagonal groove, which is compatible with the insertion of a standard hexagonal wrench to drive the shaft 201 to rotate, thereby driving the limiting rod 203 to rotate out or into the receiving groove 303 smoothly. The entire disassembly and assembly process can be completed with the help of ordinary tools that are readily available in the vehicle, without the need for special customized tooling.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A quick-release and assembly structure for a vehicle-end damper, characterized in that, include: Damper body (1); Two bases (2) are fixedly connected to the vehicle body, and a shaft (201) is rotatably connected to each of the two bases (2). Two end blocks (3) are fixedly connected to both ends of the damper body (1); The shaft (201) is provided with a connecting wheel (202). The outer contour of the connecting wheel (202) includes two opposite arc surfaces with the same center and two opposite planes. The distance between the two planes is less than the diameter of the arc surfaces. The end block (3) has a rotating groove (301) that is adapted to the arc surface of the connecting wheel (202), and a notch (302) with a width greater than or equal to the distance between the two planes of the connecting wheel (202) is provided on one side of the rotating groove (301).

2. The quick-release structure for a vehicle-end damper according to claim 1, characterized in that, A limiting rod (203) is fixedly connected to the middle of the shaft (201). One end of the limiting rod (203) is fixed to one of the arc surfaces of the connecting wheel. A receiving groove (303) is provided on the end block (3) along the length direction of the damper body (1). When the arc surface of the connecting wheel (202) is directly opposite the notch (302), the limiting rod (203) is perpendicular to the damper body (1); When the plane of the connecting wheel (202) is aligned with the notch (302), the limiting rod (203) is engaged in the receiving groove (303).

3. The quick-release structure for a vehicle-end damper according to claim 2, characterized in that, The end block (3) is slidably connected to a sliding frame (4) via an elastic element (5). A snap-fit ​​rod (401) is provided on the sliding frame (4). A slot (204) is provided at the end of the limiting rod (203) away from the connecting wheel (202). When the limiting rod (203) is rotated into the receiving groove (303), the locking rod (401) is locked in the locking groove (204) to lock the limiting rod (203) into the receiving groove (303).

4. The quick-release structure for a vehicle-end damper according to claim 3, characterized in that, The elastic element (5) includes: A spring (501) is disposed inside the sliding frame (4); The top rod (502) slides inside the sliding frame (4). One end of the top rod (502) abuts against the spring (501), and the other end of the top rod (502) passes through the sliding frame (4) and abuts against the side wall of the end block (3).

5. The quick-release structure for a vehicle-end damper according to claim 4, characterized in that, A pry bar (402) is fixedly connected to the sliding frame (4), and a prying opening (304) is provided on the side wall of the end block (3), and a guide inclined wall (305) is provided on the side wall of the prying opening (304).

6. The quick-release structure for a vehicle-end damper according to claim 2, characterized in that, The end of the shaft (201) is provided with a hexagonal groove, which is adapted to be inserted with a hexagonal wrench to drive the shaft (201) to rotate, thereby causing the limiting rod (203) to rotate out or into the receiving groove (303).

7. The quick-release structure for a vehicle-end damper according to claim 2, characterized in that, Both sides of the notch (302) are provided with guide chamfers, and the inclination angle of the guide chamfers is 30°-60°, so that the connecting wheel (202) can slide into the notch (302) along the chamfer surface.

8. The quick-release structure for a vehicle-end damper according to claim 3, characterized in that, The sliding frame (4) is provided with guide protrusions (403) on both sides, and the end block (3) is provided with guide grooves (306) that are adapted to the guide protrusions (403). The sliding frame (4) slides in a straight line along the extension direction of the guide grooves (306).

9. The quick-release structure for a vehicle-end damper according to claim 3, characterized in that, The opening of the slot (204) is provided with a transition rounded corner, the radius of which is 1mm-3mm, so that the locking rod (401) can slide into the slot (204) along the rounded corner surface.

10. The quick-release structure for a vehicle-end damper according to claim 1, characterized in that, Both of the mounting surfaces of the bases (2) are provided with positioning bosses (206), and the vehicle body is provided with positioning grooves that are adapted to the positioning bosses (206). The bases (2) are fitted into the vehicle body by the positioning bosses (206) and then fixed by bolts or welding.

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