Automobile anti-collision buffer
By designing a car anti-collision buffer, a combination structure of buffer cylinder and movable slider is used to solve the problem of rigid collision when the car door is closed, thereby reducing noise and damage, and improving the sealing performance and ease of use of the car door.
Patent Information
- Application Number
- CN202421708279.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In existing technologies, rigid collisions caused by inertial forces when car doors close result in noise and paint chipping.
A car collision buffer was designed, comprising a buffer cylinder, a buffer rod, a movable main block, a spring, and a bearing. Through the combination of a spiral track groove and a movable slider, the collision force is reduced and noise is lowered.
It effectively reduces collision damage and noise when the car door closes, and improves the sealing performance and ease of use of the car door.
Smart Images
Figure CN223661620U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, specifically is a kind of automobile anti-collision bumper. BACKGROUND
[0002] The automobile door is the passageway for driver and passenger to get in and out of the vehicle, and it isolates the interference from outside, and the appearance of the automobile is also related to the modeling of the door, the good or bad of the door is mainly reflected in the sealing performance and the convenience of opening and closing, of course, there are other use function indexes.
[0003] The door of the automobile is installed on the side of the vehicle body by hinge, when the door is closed, due to the effect of inertia force, the door still has a certain momentum after reaching the closed position, which causes the rigid collision between the door and the vehicle body, and noise and paint peeling of the door may occur. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides an automobile anti-collision bumper, which solves the problems mentioned in the above background.
[0005] The utility model provides the following technical scheme: including: buffer cylinder piece and buffer plug rod piece slidingly connected in the cavity of buffer cylinder piece,
[0006] Further comprising:
[0007] The moving main block is installed in the cavity of the buffer cylinder piece, the inner wall of the buffer cylinder piece is provided with a spiral track groove, and the outer wall of the moving main block is fixedly provided with a moving block that can slide in the spiral track groove;
[0008] The spring part is attached to the surface of the moving main block, the other end of the spring part is provided with a buffer bottom cover plate, the end of the buffer cylinder piece is provided with an external thread part, and the buffer bottom cover plate is threadedly connected with the external thread part;
[0009] The bearing part is installed at the center of the moving main block, and the bearing part is installed with the buffer plug rod piece at the center.
[0010] Further, the outer diameter of the bearing part is smaller than the inner diameter of the buffer cylinder piece, and the moving block is distributed and arranged in multiple groups along the arc surface of the moving main block.
[0011] Further, the buffer cylinder piece is internally provided with a moving groove, and the buffer plug rod piece can slide in the groove.
[0012] Further, the front end of the buffer plug rod piece is provided with an inner screw hole of plug rod, and the inner screw hole of plug rod is screw-connected with a plug-in screw rod in the groove.
[0013] Further, the end of the plug-in screw rod is fixedly provided with an impact block, and the surface of the impact block is provided with a buffer rubber pad.
[0014] Further, the center part of the buffer rubber pad and the impact block is provided with a groove.
[0015] Further, the surface of the buffer cylinder is provided with a limiting slot matched with the impact block.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] The cavity of the buffer cylinder is provided with a spiral track groove, and the cavity of the buffer cylinder is provided with a moving main block, and the surface of the moving main block is fixedly provided with a moving slider which can slide in the spiral track groove. BRIEF DESCRIPTION OF DRAWINGS
[0018] Fig. 1 It is a structural schematic view of the utility model;
[0019] Fig. 2 It is an internal section view of the buffer cylinder of the utility model;
[0020] Fig. 3 It is a split view of the buffer inserting rod and the moving main block of the utility model.
[0021] In the figure: 1, buffer cylinder; 2, buffer bottom cover plate; 3, outer thread part; 4, limiting slot; 5, moving groove; 6, buffer inserting rod; 7, inserting rod inner screw hole; 8, inserting screw; 9, impact block; 10, buffer rubber pad; 11, moving main block; 12, bearing part; 13, moving slider; 14, spiral track groove; 15, spring part. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0023] Please refer to Figs. 1-3The application relates to a buffer device, which comprises a buffer cylinder 1 and a buffer plug rod 6 slidably connected in the cavity of the buffer cylinder 1, the buffer cylinder 1 adopts a cylindrical structure, a spiral track groove 14 is formed in the inner wall of the cylinder of the buffer cylinder 1, a disc-shaped moving main block 11 is arranged in the cylinder of the buffer cylinder 1, the diameter of the moving main block 11 is smaller than the inner diameter of the cylinder of the buffer cylinder 1, the moving main block 11 can move in the cylinder of the buffer cylinder 1, a plurality of groups of moving sliding blocks 13 are arranged in the outer wall of the moving main block 11 in a ring shape, each group of moving sliding blocks 13 is embedded in the groove of the spiral track groove 14, and the moving sliding blocks 13 can slide in the groove of the spiral track groove 14, therefore the moving main block 11 can move in the radial direction in the cavity of the buffer cylinder 1 in a rotating state, a spring part 15 is attached to the surface of the moving main block 11, the other end of the spring part 15 is attached to a buffer bottom cover plate 2, an inner thread is arranged in the buffer bottom cover plate 2, an outer thread part 3 is arranged on the outside of the buffer cylinder 1, the inner thread is threadedly connected with the outer thread part 3, the buffer bottom cover plate 2 can be screwed into the outside of the buffer cylinder 1, the spring part 15 is arranged in the cavity of the buffer cylinder 1, the spring part 15 is used for limiting the moving main block 11, when the moving main block 11 moves in the cylinder of the buffer cylinder 1, the spring part 15 is used for buffering.
[0024] An inner moving groove 5 is further formed in the buffer cylinder 1, the buffer plug rod 6 can be slidably inserted in the inner moving groove 5, the buffer plug rod 6 in a cylindrical structure can slide in the inner moving groove 5, the front end of the inner moving groove 5 is connected with the moving main block 11, the buffer plug rod 6 is connected with the moving main block 11 through a bearing part 12, the outer ring of the bearing part 12 is fixed with the moving main block 11, the inner ring of the bearing part 12 is fixed with the buffer plug rod 6, therefore when the buffer plug rod 6 slides in the inner moving groove 5, the buffer plug rod 6 contacts the bearing part 12 to push the moving main block 11 to move, the moving main block 11 is moved and rotated at the same time through the moving sliding blocks 13 and the spiral track groove 14, the spring part 15 is compressed at the same time, the buffer effect after the buffer device is impacted is better, the spring part 15 cannot quickly rebound the buffer plug rod 6 due to the elastic effect, and the slow rebound effect is achieved.
[0025] A limiting insertion groove 4 is further formed in the surface of the limiting insertion groove 4 and communicated with the inner moving groove 5, an insertion rod inner screw hole 7 is formed in the front end of the buffer plug rod 6, an insertion screw rod 8 is screw-connected in the groove of the insertion rod inner screw hole 7. The end of the insertion screw rod 8 is fixed with an impact block 9, a buffer rubber pad 10 is arranged on the surface of the impact block 9, a recess is formed in the center of the buffer rubber pad 10 and the impact block 9, the impact block 9 and the buffer rubber pad 10 can be conveniently taken out and replaced through the recess, the buffer rubber pad 10 which is seriously worn or deformed can be replaced after long-time use, the impact block 9 is matched with the groove of the limiting insertion groove 4, and the impact block 9 can be retracted into the groove of the limiting insertion groove 4 after the buffer rubber pad 10 is impacted.
[0026] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.
Claims
1. A vehicle collision buffer, comprising: The buffer cylinder (1) and the buffer insert (6) which is slidably connected inside the cavity of the buffer cylinder (1). Its characteristic is that it further includes: The movable main block (11) is installed in the cavity of the buffer cylinder (1). The inner wall of the buffer cylinder (1) is provided with a spiral track groove (14), and the outer wall of the movable main block (11) is fixed with a movable slider (13) that can slide along the spiral track groove (14). The spring part (15) is attached to the surface of the moving main block (11). The other end of the spring part (15) is equipped with a buffer bottom cover plate (2). The end of the buffer cylinder (1) is provided with an external thread part (3). The buffer bottom cover plate (2) is threadedly connected to the external thread part (3). The bearing part (12) is installed in the center of the moving main block (11), and the center of the bearing part (12) is equipped with a buffer insert (6).
2. The automotive anti-collision buffer according to claim 1, characterized in that, The outer diameter of the bearing part (12) is smaller than the inner diameter of the buffer cylinder (1), and multiple sets of movable sliders (13) are arranged along the arc spacing of the movable main block (11).
3. A car collision buffer according to claim 1, characterized in that, The buffer cylinder (1) has a movable groove (5) inside, and the buffer rod (6) can slide along the groove (5).
4. A car collision buffer according to claim 1, characterized in that, The front end of the buffer insert (6) is provided with an insert screw hole (7), and an insert screw (8) is spirally connected in the groove of the insert screw hole (7).
5. A car collision buffer according to claim 1, characterized in that, The end of the plug screw (8) is fixed to the impact block (9), and a buffer rubber pad (10) is installed on the surface of the impact block (9).
6. A car collision buffer according to claim 5, characterized in that, The center of the cushioning rubber pad (10) and the impact block (9) is provided with a groove.
7. A car collision buffer according to claim 6, characterized in that, The surface of the buffer cylinder (1) is provided with a limiting slot (4) that is compatible with the impact block (9).