Automobile resonance block structure
The vehicle resonance block structure addresses loose connections by using a tightening mechanism with a gas injection system to secure the counterweight, shock-absorbing block, and bracket, ensuring stability and enhanced NVH performance.
Patent Information
- Application Number
- CN202420530470.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-19
AI Technical Summary
Existing resonance block structures in automobiles suffer from loose connections due to threaded fasteners, leading to instability and reduced reliability under long-term vehicle vibrations.
A vehicle resonance block structure with a counterweight block, shock-absorbing block, and bracket, secured by a screw and nut arrangement with a tightening mechanism that includes a supporting plate, movable cylinder, and clamping rod, enhanced by a gas injection system to maintain stability.
The structure ensures stable connection between the counterweight, shock-absorbing block, and bracket, maintaining strength and improving NVH performance even under prolonged vibrations.
Smart Images
Figure CN222277371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of resonance blocks, in particular to a resonance block structure for an automobile. Background Art
[0002] The resonant block is a common counterweight part on automotive components, which is used to improve the modes of components such as subframes and swing arms and enhance the NVH performance of the entire vehicle. In related technologies, the counterweight and bracket of the resonant block are fixed by vulcanizing the buffer rubber. Therefore, the weight of the counterweight is fixed, the versatility of the resonant block is poor, and the vulcanized rubber is prone to cracking, causing the counterweight and bracket to fall off, and the reliability is not high.
[0003] The prior art discloses a resonance block structure and a vehicle with a patent announcement number of CN208397214U, wherein the resonance block structure comprises a bracket and a counterweight, wherein the counterweight is fixed to the bracket and a vibration-damping pad and a fastener are arranged between the counterweight and the bracket, wherein the fastener passes through the bracket, the counterweight and the vibration-damping pad to fix the bracket, the counterweight and the vibration-damping pad together. The resonance block structure of the utility model has a simple structure, good vibration-absorbing performance and strong applicability;
[0004] The above patent uses fasteners consisting of bolts and nuts to fix and assemble the shock absorber pad, bracket and counterweight block. Although it can basically achieve the firmness of the three in daily use to a certain extent, the actual fixing effect of the fastener comes from the threaded connection between the bolts and the nuts. As a result, when the resonance block is subjected to long-term vibration under the vehicle bottom, the bolts and nuts are very likely to loosen, seriously affecting the firmness of the connection between the shock absorber pad, bracket and counterweight block. Utility Model Content
[0005] In order to solve the above technical problems, a car resonance block structure is provided, which solves the problem that the actual fixing effect of the fastener in the prior art comes from the threaded connection between the bolts and the nuts, and then the resonance block is very likely to loosen when it is subjected to long-term vibration under the vehicle bottom.
[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a vehicle resonance block structure, including a counterweight block and two accommodating grooves symmetrically opened on the counterweight block, a shock-absorbing block with an open bottom is passed through the accommodating groove, a bracket is inserted into the open end of the shock-absorbing block, a screw is transversely arranged on one side of the counterweight block, the screw crosses the bracket, the shock-absorbing block and the counterweight block, and a nut is arranged on the other side of the counterweight block, the nut is threadedly connected to the rod of the screw, and a tightening mechanism for preventing the screw and the nut from loosening is arranged on both sides of the counterweight block;
[0007] The clamping mechanism includes a supporting plate vertically fixed on the side wall of the shock-absorbing block, a movable cylinder vertically fixed to the end of the supporting plate, and a sliding plate slidably arranged on the inner side of the movable cylinder. A clamping rod is vertically fixed on the sliding plate, and the clamping rod passes through the movable cylinder and abuts against the end of the screw rod.
[0008] Preferably, a gas injection nozzle is connected and fixed to the bottom of the wall of the movable cylinder, and a sealing cover is threadedly connected to the end of the gas injection nozzle.
[0009] Preferably, a spring is fixed between the sliding sheet and the carrying sheet.
[0010] Compared with the prior art, the advantages of the utility model are: through the setting of the tightening mechanism, the two ends of the screw can be effectively and firmly pressed against the counterweight block, the shock absorbing block and the bracket during daily use. Even if the screw and the nut become loose due to long-term vibration, the screw can still remain stable under the action of the two sets of tightening mechanisms, thereby maintaining the connection strength between the counterweight block, the shock absorbing block and the bracket and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 This is a schematic diagram of the internal structure of the utility model;
[0013] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at point A in the middle.
[0014] The numbers in the figure are:
[0015] 1. Counterweight block; 2. Shock absorber block; 3. Bracket; 4. Screw rod; 5. Nut; 6. Load-bearing plate; 7. Movable cylinder; 8. Clamping rod; 9. Sliding plate; 10. Spring; 11. Air injection nozzle; 12. Sealing cover. DETAILED DESCRIPTION
[0016] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.
[0017] Reference Figure 1-3 As shown, a vehicle resonance block structure comprises a counterweight block 1 and two receiving grooves symmetrically opened on the counterweight block 1, a shock absorbing block 2 with an open bottom is passed through the receiving groove, a bracket 3 is inserted into the open end of the shock absorbing block 2, a screw rod 4 is transversely arranged on one side of the counterweight block 1, the screw rod 4 crosses the bracket 3, the shock absorbing block 2 and the counterweight block 1, and a nut 5 is arranged on the other side of the counterweight block 1, and the nut 5 is threadedly connected to the rod body of the screw rod 4;
[0018] When in use, the screw rod 4 is pre-threaded across the counterweight block 1, the shock absorbing block 2 and the bracket 3, and then the nut 5 is threadedly added to the rod body of the screw rod 4, and the nut 5 is caused to abut against the side of the counterweight block 1. In this way, the screw rod 4 cooperates with the nut 5 to fix the counterweight block 1, the shock absorbing block 2 and the bracket 3 in a certain position, thereby ensuring the stability of the overall structure of the resonance block;
[0019] The bracket 3 is then fixed to the vehicle frame by threaded connection or welding. The bracket 3 can transmit the vibration to the counterweight block 1 to reduce the frequency of the vibration and simultaneously transmit the vibration to the shock-absorbing block 2. The shock-absorbing block 2 can further absorb the vibration and improve the NVH performance of the entire vehicle.
[0020] Further, refer to Figure 2 and Figure 3 As shown, it is worth noting that both sides of the counterweight block 1 are provided with a tightening mechanism for preventing the screw rod 4 and the nut 5 from loosening;
[0021] By setting up the tightening mechanism, the counterweight block 1, the shock absorbing block 2 and the bracket 3 can be effectively and firmly pressed against the two ends of the screw 4 during daily use. Even if the screw 4 and the nut 5 become loose due to long-term vibration, the screw 4 can still remain stable under the action of the two sets of tightening mechanisms, thereby maintaining the connection strength among the counterweight block 1, the shock absorbing block 2 and the bracket 3 and improving stability.
[0022] Further, refer to Figure 3 As shown, it is worth noting that the abutting mechanism includes a bearing sheet 6 vertically fixed on the side wall of the shock absorbing block 2, a movable cylinder 7 vertically fixed to the end of the bearing sheet 6, and a sliding sheet 9 slidably arranged inside the movable cylinder 7, and a abutting rod 8 is vertically fixed on the sliding sheet 9, and the abutting rod 8 passes through the movable cylinder 7 and abuts against the end of the screw rod 4;
[0023] After the screw 4 completes the fixed connection between the counterweight block 1, the shock absorbing block 2 and the bracket 3, the slide plate 9 slides up on the inner side of the movable cylinder 7, and the clamping rod 8 can be extended outward from the inner cavity of the movable cylinder 7 and abut against the end of the screw 4. In this way, the clamping rod 8 abuts against the end of the screw 4, which can play a good limiting role on the screw 4 and enhance the stability of the screw 4 in the inner wall of the counterweight block 1.
[0024] Further, refer to Figure 3 As shown, it is worth noting that a gas injection nozzle 11 is connected and fixed to the bottom of the wall of the movable cylinder 7, and a sealing cover 12 is threadedly connected to the end of the gas injection nozzle 11;
[0025] By setting the gas injection nozzle 11 and the sealing cover 12, the gas injection nozzle 11 is connected to the air pump by a hose, so that the air pump can inject gas into the inside of the movable cylinder 7 in real time, so that the sliding piece 9 slides up on the inside of the movable cylinder 7 due to the increase of gas pressure, so that the pressing rod 8 extends outward from the inside of the movable cylinder 7 synchronously;
[0026] After the gas is injected, the sealing cover 12 is threadedly mounted on the gas injection nozzle 11, so that the gas injection nozzle 11 and the inside of the movable cylinder 7 can be effectively sealed to prevent the gas from leaking outward.
[0027] Further, referring to FIG3 , it is worth noting that a spring 10 is fixed between the slide 9 and the carrier 6 ;
[0028] As shown above, during the sliding of the slide 9, when the pressing rod 8 extends outward from the inside of the movable cylinder 7, the slide 9 can simultaneously stretch the spring 10 to deform, so that the knob sealing cover 12 falls off from the outer wall of the gas injection nozzle 11, and the sealing effect on the inside of the movable cylinder 7 is released. At the same time, the slide 9 can be quickly reset by the elastic force of the spring 10 as the air pressure gradually decreases, so that it is convenient for secondary use.
[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A vehicle resonance block structure, comprising a counterweight (1) and two receiving grooves symmetrically arranged on the counterweight (1), wherein a shock absorbing block (2) with an open bottom is passed through the receiving groove, a bracket (3) is inserted into the open end of the shock absorbing block (2), a screw rod (4) is transversely arranged on one side of the counterweight (1), the screw rod (4) crosses the bracket (3), the shock absorbing block (2) and the counterweight (1), and a nut (5) is arranged on the other side of the counterweight (1), the nut (5) is threadedly connected to the rod body of the screw rod (4), characterized in that: Both sides of the counterweight block (1) are provided with a tightening mechanism for preventing the screw rod (4) and the nut (5) from loosening; The clamping mechanism comprises a bearing plate (6) vertically fixed on the side wall of the shock absorbing block (2), a movable cylinder (7) vertically fixed to the end of the bearing plate (6), and a sliding plate (9) slidably arranged inside the movable cylinder (7), and a clamping rod (8) is vertically fixed on the sliding plate (9), and the clamping rod (8) passes through the movable cylinder (7) and abuts against the end of the screw rod (4).
2. The automotive resonance block structure according to claim 1, characterized in that: The bottom of the wall of the movable cylinder (7) is connected and fixed with an air injection nozzle (11), and the end of the air injection nozzle (11) is threadedly connected with a sealing cover (12).
3. The automotive resonance block structure according to claim 2, characterized in that: A spring (10) is fixed between the sliding plate (9) and the carrying plate (6).