Electric vehicle rear fork structure capable of being quickly disassembled
By improving the design of the connecting bolts and fasteners of the electric vehicle's rear horizontal fork, and utilizing a combination of inclined blocks and springs, the problems of loose bolts and nuts and inconvenient disassembly and assembly were solved, enabling quick disassembly and stable connection, thus improving the convenience and safety of the electric vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-03-27
AI Technical Summary
The bolts and nuts on the rear swingarm of an electric vehicle are prone to loosening and are inconvenient to disassemble and assemble, especially when space is limited.
The design employs connecting bolts, fasteners, and fixing components, utilizing a combination structure of wedges, sliders, and springs to achieve quick disassembly and fixing. The connection is kept stable by the movement of the wedges in the inclined groove and the pushing force of the spring, preventing loosening. At the same time, the cooperation of the limiting post and the sliding groove enables a simple disassembly process.
It enables quick assembly and disassembly of the rear swingarm of the electric vehicle, avoiding loosening and falling off of bolts and nuts, simplifying the operation process, and improving assembly and disassembly efficiency and safety.
Smart Images

Figure CN224045358U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric motor car rear flat fork technical field, concretely is a kind of electric motor car rear flat fork structure of quick disassembly. BACKGROUND
[0002] Electric motor car rear flat fork is the U-shaped structure component in electric motor car rear wheel part, mainly used to support and fix rear wheel.The main function of rear flat fork is to support and fix the rear wheel of electric motor car, ensure that rear wheel keeps stable in the process of driving, and does not appear swing or drop-off condition, to guarantee the normal driving and safety of vehicle.Rear flat fork is the shock absorber mounting seat or shock absorbing connection point in the part of connecting damping, it is usually welded or integrally formed on rear flat fork specific structure, with bolt nut and other components for installing and fixing shock absorber, to realize the reliable connection of rear flat fork and shock absorber.
[0003] But when electric motor car is in the process of riding, when vibration, impact and other dynamic load act, bolt nut can gradually loosen, leading to connection failure;And bolt nut needs corresponding tool when installing and disassembling, such as wrench, screwdriver, and the operation process is relatively cumbersome, time and manpower are consumed.Especially in the case of limited space, operation is more difficult. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of electric motor car rear flat fork structure of quick disassembly to solve the problem of bolt nut of the part of connecting electric motor car damping in the above background technology easy to loosen and inconvenient to disassemble.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of electric motor car rear flat fork structure of quick disassembly, including rear flat fork body, shock absorber mounting seat, connecting bolt, fixed part, the fixed part inboard top is provided with fixed assembly;
[0007] Fixed assembly includes sliding pipe, the sliding pipe inside is slidably provided with sliding block, the sliding pipe inboard top is provided with first spring, the sliding block bottom is provided with inclined block, the connecting bolt end top is provided with inclined slot.
[0008] In a preferred embodiment of the utility model, the connecting bolt passes through shock absorber mounting seat, and the connecting bolt end is inserted into the inboard of fixed part.
[0009] In a preferred embodiment of the utility model, the connecting bolt is provided with card key, the inboard of shock absorber mounting seat is provided with card slot, and the card key is disassembled on the card slot.
[0010] In an optimal embodiment of the utility model, the connecting bolt end is provided with a clamping block, the inside of the fixing part is provided with a clamping hole, and the clamping block is disassembled in the clamping hole.
[0011] In an optimal embodiment of the utility model, the inclined block is disassembled in the inclined groove, the bottom of the first spring is connected with a sliding block, the inside of the sliding block is provided with a second spring, a limiting column is arranged on the second spring, and the limiting column is slidingly installed.
[0012] In an optimal embodiment of the utility model, one side of the inside of the sliding pipe is provided with a limiting groove, and the limiting column is disassembled in the limiting groove.
[0013] In an optimal embodiment of the utility model, the outside of the limiting groove is provided with a sliding groove, a sliding part is slidingly arranged in the inside of the sliding groove, the inside of the sliding groove is provided with an annular groove, and the sliding part rotates in the annular groove.
[0014] In an optimal embodiment of the utility model, a top column is arranged on the sliding part, and the top column is disassembled in the limiting groove.
[0015] The additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. Beneficial effects
[0016] The connecting bolt passes through the shock absorber mounting seat, the fixing part is installed at the connecting bolt end, the inclined surface of the inclined block is pressed at this time, the inclined block is lifted into the sliding pipe, and the first spring is contracted.
[0017] The sliding block is pulled at the top, the inclined block is disassembled in the inclined groove, the limiting column is connected with the limiting groove after being pulled to a certain height, the second spring pushes out the limiting column, the limiting column is inserted into the limiting groove, the inclined block is fixed in the sliding pipe, the fixing part can be directly taken out, the connecting bolt is disassembled, and the fixing part and the connecting bolt are convenient to disassemble and assemble.
[0018] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following is the preferred embodiment of the present application and the detailed description of the drawings as follows. The specific embodiment of the present application is given in detail by the following examples and their drawings. BRIEF DESCRIPTION OF DRAWINGS
[0019] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
[0020] Figure 1 It is a main body structure schematic diagram of a quick detachable electric vehicle rear flat fork structure;
[0021] Figure 2 It is a connecting bolt and fixing piece connecting structure schematic diagram in a quick detachable electric vehicle rear flat fork structure;
[0022] Figure 3 It is a connecting bolt structure schematic diagram in a quick detachable electric vehicle rear flat fork structure;
[0023] Figure 4 It is a fixing piece cross section structure schematic diagram in a quick detachable electric vehicle rear flat fork structure.
[0024] In the figure: 1, rear flat fork body; 11, shock absorber mounting seat; 12, clamping groove; 13, connecting bolt; 2, clamping block; 21, clamping key; 22, inclined groove; 3, fixing piece; 31, clamping opening; 32, sliding pipe; 33, inclined block; 34, sliding block; 35, first spring; 4, second spring; 41, limiting column; 42, limiting groove; 43, sliding groove; 44, sliding piece; 45, annular groove; 5, top column. DETAILED DESCRIPTION
[0025] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0026] Please refer to Figures 1-4 The present application relates to a quick detachable electric vehicle rear flat fork structure, which comprises a rear flat fork body 1, a shock absorber mounting seat 11, a connecting bolt 13 and a fixing piece 3. The rear flat fork body 1 is the rear flat fork structure of the electric vehicle, the shock absorber mounting seat 11 is the shock absorber mounting seat of the rear flat fork, and the connecting bolt 13 and the fixing piece 3 are the mounting structure, which replaces the bolt and the nut.
[0027] The connecting bolt 13 passes through the shock absorber mounting seat 11, and the connecting bolt 13 is inserted into the inside of the fixing part 3. The connecting bolt 13 is provided with a clamping key 21, and the inside of the shock absorber mounting seat 11 is provided with a clamping groove 12. The clamping key 21 is disassembled on the clamping groove 12. When the connecting bolt 13 is inserted into the shock absorber mounting seat 11, the clamping key 21 is clamped in the clamping groove 12, so as to fix the position of the connecting bolt 13 and prevent it from rotating. The end of the connecting bolt 13 is provided with a clamping block 2, and the inside of the fixing part 3 is provided with a clamping hole 31. The clamping block 2 is disassembled in the clamping hole 31. When the connecting bolt 13 is installed, the fixing part 3 is installed at the end of the connecting bolt 13. At this time, the clamping block 2 is clamped in the clamping hole 31, so that the fixing part 3 cannot rotate, and the orientation of the fixing part 3 connected with the connecting bolt 13 is ensured, and the butt joint of other structures is ensured.
[0028] The inside of the fixing part 3 is provided with a fixing assembly at the top. The fixing assembly comprises a sliding pipe 32, and a sliding block 34 is slidably arranged in the sliding pipe 32. The inside of the sliding pipe 32 is provided with a first spring 35 at the top. The bottom of the first spring 35 is connected with the sliding block 34. The first spring 35 always pushes the sliding block 34. The bottom of the sliding block 34 is provided with an inclined block 33. The end of the connecting bolt 13 is provided with an inclined groove 22 at the top. The inclined block 33 is disassembled in the inclined groove 22. When the fixing part 3 is installed at the end of the connecting bolt 13, the inclined surface of the inclined block 33 is pressed, so that the inclined block 33 rises into the sliding pipe 32, and the first spring 35 is contracted at this time. When the fixing part 3 is installed, the inclined block 33 is butt jointed with the inclined groove 22. At this time, the sliding block 34 is pushed by the first spring 35, so that the inclined block 33 is inserted into the inclined groove 22, thereby fixing the fixing part 3 and the connecting bolt 13. When the vibration occurs, the inclined block 33 moves in the inclined groove 22. The pushing force of the first spring 35 is used to make the inclined block 33 always inserted into the inclined groove 22, so as to avoid the loosening and falling of the fixing part 3;
[0029] The second spring 4 is provided with a limiting column 41, the second spring 4 always pushes the limiting column 41, the limiting column 41 is slidingly installed, one side of the inner portion of the sliding pipe 32 is provided with a limiting groove 42, the limiting column 41 is disassembled in the limiting groove 42, that is, by pulling the sliding block 34 at the top, the inclined block 33 is disassembled in the inclined groove 22, and after being pulled to a certain height, the limiting column 41 is butted against the limiting groove 42, the second spring 4 pushes out the limiting column 41, the limiting column 41 is inserted into the limiting groove 42, so that the inclined block 33 is fixed in the sliding pipe 32, that is, the fixing part 3 can be directly taken out, and the connecting bolt 13 is disassembled, so that the disassembly is more convenient, the outer side of the limiting groove 42 is provided with a sliding groove 43, the sliding groove 43 is slidingly provided with a sliding part 44 inside, the sliding part 44 is provided with a top column 5, the top column 5 is disassembled in the limiting groove 42, that is, by pressing the sliding part 44 at the outer side, the top column 5 is inserted into the limiting groove 42, at this time, the limiting column 41 can be pushed out, the inner side of the sliding groove 43 is provided with an annular groove 45, the sliding part 44 rotates in the annular groove 45, by the sliding part 44 in the annular groove 45, the sliding part 44 cannot slide out, that is, the top column 5 is stuck in the limiting groove 42 and cannot move, in the special case, the limiting column 41 cannot be inserted into the limiting groove 42.
[0030] The working principle of the utility model is: the shock absorber mounting seat 11 is installed at the shock absorbing position of the electric vehicle, the connecting bolt 13 passes through the shock absorber mounting seat 11, the fixing part 3 is installed at the end of the connecting bolt 13, at this time, the inclined surface of the inclined block 33 can be extruded, so that the inclined block 33 rises into the sliding pipe 32, at this time, the first spring 35 is contracted, when the fixing part 3 is installed, the inclined block 33 is butted against the inclined groove 22, at this time, the sliding block 34 is pushed by the first spring 35, so that the inclined block 33 is inserted into the inclined groove 22, so that the fixing part 3 and the connecting bolt 13 are fixed, that is, the connection of the rear fork and the shock absorbing position of the electric vehicle is completed, when vibration occurs, the inclined block 33 moves in the inclined groove 22, by the pushing force of the first spring 35, so that the inclined block 33 is always inserted into the inclined groove 22, so that the fixing part 3 is prevented from loosening and falling off, by pulling the sliding block 34 at the top, the inclined block 33 is disassembled in the inclined groove 22, and after being pulled to a certain height, the limiting column 41 is butted against the limiting groove 42, the second spring 4 pushes out the limiting column 41, the limiting column 41 is inserted into the limiting groove 42, so that the inclined block 33 is fixed in the sliding pipe 32, that is, the fixing part 3 can be directly taken out, and the connecting bolt 13 is disassembled, so that the disassembly is more convenient, by pressing the sliding part 44 at the outer side, the top column 5 is inserted into the limiting groove 42, at this time, the limiting column 41 can be pushed out.
[0031] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.
Claims
1. A quick detachable electric vehicle rear flat fork structure, characterized in that: The utility model relates to a rear fork body (1), shock absorber mounting seat (11), connecting bolt (13), fixed part (3), fixed part (3) inside top is provided with fixed assembly; The fixed assembly includes a sliding pipe (32), a sliding block (34) is slidably arranged in the sliding pipe (32), a first spring (35) is arranged at the top of the inner side of the sliding pipe (32), an inclined block (33) is arranged at the bottom of the sliding block (34), and an inclined groove (22) is arranged at the top of the end of the connecting bolt (13).
2. The quick detachable electric vehicle rear flat fork structure according to claim 1, characterized in that, The connecting bolt (13) passes through the shock absorber mounting seat (11), and the end of the connecting bolt (13) is inserted into the inner side of the fixed part (3).
3. The quick detachable electric vehicle rear flat fork structure according to claim 1, characterized in that, A clamping key (21) is arranged on the connecting bolt (13), a clamping groove (12) is arranged on the inner side of the shock absorber mounting seat (11), and the clamping key (21) is disassembled on the clamping groove (12).
4. The quick detachable electric vehicle rear flat fork structure according to claim 1, characterized in that, A clamping block (2) is arranged at the end of the connecting bolt (13), a clamping opening (31) is arranged on the inner side of the fixed part (3), and the clamping block (2) is disassembled in the clamping opening (31).
5. The quick detachable electric vehicle rear flat fork structure according to claim 1, characterized in that, The inclined block (33) is disassembled in the inclined groove (22), the first spring (35) is connected to the sliding block (34), a second spring (4) is arranged on the inner side of the sliding block (34), a limiting column (41) is arranged on the second spring (4), and the limiting column (41) is slidably arranged.
6. The quick detachable electric vehicle rear flat fork structure according to claim 5, characterized in that, A limiting groove (42) is arranged on one side of the inner side of the sliding pipe (32), and the limiting column (41) is disassembled in the limiting groove (42).
7. The quick detachable electric vehicle rear flat fork structure according to claim 6, characterized in that, A sliding groove (43) is arranged on the outer side of the limiting groove (42), a sliding member (44) is slidably arranged in the sliding groove (43), an annular groove (45) is arranged on the inner side of the sliding groove (43), and the sliding member (44) rotates in the annular groove (45).
8. The quick detachable electric vehicle rear flat fork structure according to claim 7, characterized in that, A top column (5) is arranged on the sliding member (44), and the top column (5) is disassembled in the limiting groove (42).