Automobile swing arm capable of being quickly disassembled and assembled
By employing a turntable, sleeve, and toothed design for fastening components on the vehicle's swing arm, the problem of nuts loosening due to vehicle vibrations is solved, enabling quick disassembly and assembly and a stable connection, thereby improving vehicle safety and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUHUAN JINDING MACHINERY CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-21
AI Technical Summary
The existing assembly and disassembly structure of automotive control arms is prone to nut loosening due to vehicle bumps, which affects driving safety.
It employs fastening components, including a turntable, sleeve, teeth, and spring design. The teeth snap-fit and sleeve limit ensure that the nut does not loosen when the vehicle is bumpy. Combined with the slot and insert design, it enables quick installation and removal.
This improves the stability of the disassembly and assembly structure, reduces the risk of nuts loosening, and ensures vehicle safety and a convenient replacement process.
Smart Images

Figure CN224145699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive swing arm technology, and in particular to an automotive swing arm that can be quickly disassembled and assembled. Background Technology
[0002] The control arms are core components of the suspension system, connecting the wheels to the vehicle body. They are responsible for transmitting steering forces, cushioning road impacts, and maintaining tire alignment parameters. They consist of upper and lower control arms, and are typically made of high-strength steel, aluminum alloy, or cast iron. Their ball joints and bushings are prone to wear, which can lead to abnormal noises, vehicle pulling to one side, or uneven tire wear, requiring regular inspection and maintenance.
[0003] A search of Chinese patent "A Car Chassis Swing Arm Bracket for Easy Disassembly and Assembly" (publication number CN216101401U) reveals this utility model, which discloses a car chassis swing arm bracket for easy disassembly and assembly. The bracket includes a triangular swing arm body, a metal body with a rust-proof protective sleeve on its surface, and a rust-proof coating between the metal body and the protective sleeve. A sponge layer is located on the side of the protective sleeve that contacts the metal body, and a sealing layer is located on the top surface of the sponge layer. An oil injection hole is provided on the protective sleeve, communicating with the sponge layer. In this utility model, a first detachable collar, a detachable ring, and a detachable iron ring are connected to the swing arm body via a connector plug and a connecting slot. They are then connected to the swing arm body by bolts passing through threaded holes and through holes, facilitating installation and disassembly. If the first detachable collar, the detachable ring, or the detachable iron ring is damaged, they can be replaced individually, saving on maintenance costs.
[0004] Although the aforementioned automotive swing arm uses fixing bolts to facilitate the replacement of damaged collars or iron rings, relying solely on a single bolt as the fixing assembly for the disassembly and assembly structure makes it easy for the nuts to loosen due to bumps during vehicle operation after it is applied to the vehicle, which in turn will affect the driving safety of the vehicle.
[0005] Therefore, a car control arm that can be quickly disassembled and assembled is proposed to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a quick-release and detachable car control arm to solve the above-mentioned problems. This improves upon the previous quick-release and detachable car control arm, which only used bolts as the main component of the disassembly and assembly structure. As a result, after being applied to a vehicle, the nuts are prone to loosening due to the bumps during vehicle operation, which affects the driving safety of the vehicle.
[0007] The present invention achieves the above objectives through the following technical solution: a car swing arm that can be quickly disassembled and assembled, comprising: a swing arm body and a connecting ring and a connecting block disposed at its connecting end, wherein the connecting ring is placed in the connecting block;
[0008] A fastening assembly is disposed below the connecting block;
[0009] The fastening assembly includes a turntable located below the connecting block, a sleeve located in the middle of the turntable, and teeth located above the turntable and below the connecting block.
[0010] Preferably, the fastening assembly further includes two grooves formed below the connecting block, one of which, with a smaller diameter, contains a spring, the lower end of which is fixedly connected to a circular plate, and the turntable rotates within the circular plate.
[0011] Preferably, a limiting ring is vertically slidably connected inside another groove with a larger diameter. The lower part of the limiting ring is fixedly connected to the circular ring plate. By setting the limiting ring, the circular ring plate can be kept in vertical motion, preventing the circular ring plate from shifting position and affecting the mating of the two sets of teeth.
[0012] Preferably, slots are provided above and below the end of the swing arm body, and inserts are inserted into the slots. The end of the insert near the connecting block is fixedly connected to the connecting block. By setting slots to cooperate with inserts, it is convenient for workers to connect the connecting block to the end of the swing arm body.
[0013] Preferably, a connecting groove is provided in the middle of the end of the swing arm body, and a plug is inserted into the connecting groove. The end of the plug near the connecting block is fixedly connected to the connecting block.
[0014] Preferably, the surfaces of the slot, insert, connecting groove and insert block are all provided with connecting holes, and bolts are inserted between the four connecting holes. Nuts are threadedly connected to the underside of the bolt surface. By setting the bolts and nuts, it is convenient for workers to lock the connecting block to the end of the swing arm body.
[0015] Preferably, the sleeve is hexagonal and hollow, and the inner diameter of the sleeve is adapted to the nut. Through the above design, the nut can be locked and limited by the sleeve.
[0016] The beneficial effects of this utility model are:
[0017] 1. By setting up fastening components, after personnel replace the connecting ring in the connecting block using bolts and nuts, the nuts can be locked onto the surface of the bolts using two sets of opposing teeth, reducing the impact of vehicle bumps on the nut's vibration and improving the overall stability of the disassembly and assembly structure.
[0018] 2. By setting a spring, the circular plate can be provided with movable space, which not only makes it easier for personnel to disassemble the bolts, but also ensures the interlocking effect between the two sets of teeth, improving the overall stability of the disassembly and assembly structure. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the quick-detachable automotive swing arm of this utility model;
[0020] Figure 2 This is a schematic diagram of the disassembled structure of the swing arm body and connecting block of the quick-disassembly automotive swing arm of this utility model.
[0021] Figure 3 This is a cross-sectional view of the connecting block of the quick-release automotive swing arm according to this utility model.
[0022] Figure 4 This is a schematic diagram showing the disassembled structure of the fastening assembly of the quick-release automotive control arm according to this utility model.
[0023] In the diagram: 1. Swing arm body; 2. Connecting block; 3. Insert strip; 4. Insert block; 5. Bolt; 6. Fastening assembly; 601. Groove; 602. Circular ring plate; 603. Turntable; 604. Sleeve; 605. Spring; 606. Tooth; 7. Nut. Detailed Implementation
[0024] 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.
[0025] In practical implementation: such as Figure 1-4 As shown, a quick-release automotive control arm includes: a control arm body 1 and a connecting ring and a connecting block 2 disposed at its connecting end, with the connecting ring placed in the connecting block 2;
[0026] Fastening component 6 is located below connecting block 2;
[0027] During use, the interface of the car control arm body 1 will be subject to long-term wear and aging due to factors such as vehicle driving bumps, handling and bearing weight. The function of these interfaces is to connect different components of the suspension system to ensure the vehicle has flexibility and stability when steering and the suspension system moves. Over time, the interface will experience problems such as increased gaps, accelerated wear and loss of elasticity. At this time, it is necessary to replace it to ensure driving stability and safety.
[0028] like Figure 3 and Figure 4As shown, the fastening assembly 6 includes a turntable 603 disposed below the connecting block 2, a sleeve 604 disposed in the middle of the turntable 603, and teeth 606 disposed above the turntable 603 and below the connecting block 2 respectively; the fastening assembly 6 also includes two grooves 601 formed below the connecting block 2, one of which, with a smaller diameter, contains a spring 605, the lower end of which is fixedly connected to a ring plate 602, and the turntable 603 rotates within the ring plate 602; the other, with a larger diameter, has a limit ring vertically slidably connected inside, and the lower part of the limit ring is fixedly connected to the ring plate 602; the sleeve 604 is hexagonal and hollow, and its inner diameter is adapted to the nut 7;
[0029] When the nut 7 is turned to the sleeve 604, the personnel pull the sleeve 604 down and adjust the angle of the sleeve 604 through the turntable 603 so that it is consistent with the angle of the nut 7 and is fitted onto the surface of the nut 7.
[0030] Continue to tighten nut 7. At this time, nut 7 will continue to tighten upward within the limit of sleeve 604. At the same time, sleeve 604 will also rotate and rise in turntable 603 along with nut 7.
[0031] When the turntable 603 and the sleeve 604 move to a certain height, the teeth 606 above the turntable 603 contact and move against each other with the teeth 606 below the connecting block 2. When the two sets of teeth 606 reach a certain mating depth, stop turning the nut 7.
[0032] At this time, the teeth 606 above the turntable 603 will engage with the teeth 606 below the connecting block 2, so that the turntable 603 cannot rotate in the opposite direction. At the same time, the sleeve 604 limits the nut 7, so that the nut 7 can avoid the vibration caused by bumps and vibrations when the vehicle is moving, which would cause the nut 7 to rotate in the opposite direction and loosen.
[0033] When disassembly is required, simply push the ring plate 602 downwards so that the teeth 606 above the ring plate 602 disengage from the teeth 606 below the connecting block 2. Then, turn the ring plate 603 so that it drives the sleeve 604 and the nut 7 inside to rotate in reverse, thus removing the nut 7. After that, the bolt 5 can be pulled out to achieve the effect of easy disassembly and assembly.
[0034] like Figure 2 and Figure 3As shown, slots are provided at the top and bottom of the end of the swing arm body 1, and inserts 3 are inserted into the slots. The end of the insert 3 near the connecting block 2 is fixedly connected to the connecting block 2. A connecting groove is provided in the middle of the end of the swing arm body 1, and inserts 4 are inserted into the connecting groove. The end of the insert 4 near the connecting block 2 is fixedly connected to the connecting block 2. Connecting holes are provided on the surfaces of the slots, inserts 3, connecting grooves and inserts 4. Bolts 5 are inserted between the four connecting holes, and nuts 7 are threaded onto the lower surface of the bolts 5.
[0035] When replacing the connecting ring, first place the new connecting ring in the connecting block 2, then insert the insert 4 and insert strip 3 of the connecting block 2 into the slot and connecting groove respectively, then insert the bolt 5 into the connecting hole of the insert 4 and insert strip 3, and then put the nut 7 on the underside of the bolt 5 and tighten it upwards;
[0036] In practical use, when replacing the connecting ring, the new connecting ring is first placed in the connecting block 2. Then, the insert 4 and insert strip 3 of the connecting block 2 are respectively inserted into the slot and connecting groove. Next, the bolt 5 is inserted into the connecting hole of the insert 4 and insert strip 3. Then, the nut 7 is placed under the surface of the bolt 5 and tightened upwards. When the nut 7 is tightened to the sleeve 604, the operator pulls the sleeve 604 downwards and adjusts the angle of the sleeve 604 using the turntable 603 to make it align with the angle of the nut 7 and fit onto the surface of the nut 7. The nut 7 is then tightened further, and at this point, the nut 7 will be positioned within the sleeve 604. As the nut 7 continues to be tightened upwards within the limit, the sleeve 604 will also rotate and rise in the turntable 603 along with the nut 7. The teeth 606 of the turntable 603 will contact and interact with the teeth 606 below the connecting block 2. When the two sets of teeth 606 reach a certain engagement depth, the operator can stop tightening the nut 7. At this time, the teeth 606 above the turntable 603 will engage with the teeth 606 below the connecting block 2, preventing the turntable 603 from rotating in the opposite direction. At the same time, the sleeve 604 limits the nut 7, thus preventing the nut 7 from rotating in the opposite direction and loosening due to vibrations caused by bumps when the vehicle is in motion.
[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A quick detachable automobile swing arm, characterized in that, include: The swing arm body (1) and the connecting ring and connecting block (2) disposed at its connecting end, wherein the connecting ring is placed in the connecting block (2); Fastening assembly (6), which is disposed below the connecting block (2); The fastening assembly (6) includes a turntable (603) located below the connecting block (2), a sleeve (604) located in the middle of the turntable (603), and teeth (606) located above the turntable (603) and below the connecting block (2).
2. The quick detachable swing arm for a vehicle as claimed in claim 1, wherein: The fastening assembly (6) also includes two grooves (601) below the connecting block (2), one of which has a smaller diameter groove (601) containing a spring (605), the lower end of which is fixedly connected to a ring plate (602), and the turntable (603) rotates in the ring plate (602).
3. The quick detachable swing arm of claim 1, wherein: Another groove (601) with a larger diameter is vertically slidably connected to a limiting ring, and the lower part of the limiting ring is fixedly connected to the circular ring plate (602).
4. The quick detachable automobile swing arm according to claim 1, characterized in that: Slots are provided above and below the end of the swing arm body (1), and inserts (3) are inserted into the slots. The end of the insert (3) near the connecting block (2) is fixedly connected to the connecting block (2).
5. The quick detachable automobile swing arm according to claim 4, characterized in that: A connecting groove is provided in the middle of the end of the swing arm body (1), and a plug (4) is inserted into the inside of the connecting groove. The end of the plug (4) near the connecting block (2) is fixedly connected to the connecting block (2).
6. The quick detachable automobile swing arm according to claim 4, characterized in that: The slot, insert (3), connecting groove and insert (4) are all provided with connecting holes. Bolts (5) are inserted between the four connecting holes. Nuts (7) are threadedly connected to the lower surface of the bolt (5).
7. The quick detachable automobile swing arm according to claim 1, characterized in that: The sleeve (604) is hexagonal and hollow, and the inner diameter of the sleeve (604) is adapted to the nut (7).
Citation Information
Patent Citations
Automobile chassis swing arm support convenient to disassemble and assemble
CN216101401U