Buffer block structure with composite rigidity
By using polyurethane lining blocks of different densities in the buffer block, the problem that existing buffer blocks are difficult to take into account the initial contact comfort and greater load limits is solved, and the multi-stage stiffness curve adjustment and cost saving effect is achieved.
Patent Information
- Application Number
- CN202422015079.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-20
AI Technical Summary
When the existing buffer blocks meet the initial contact comfort and limit requirements, it is difficult to take into account the vehicle limit and multi-stage stiffness curve adjustment of larger loads, and the cost of molds and mounting brackets is relatively high.
Polyurethane lining blocks of different densities are embedded in the installation groove of the buffer block body. The high density and multi-stage stiffness curve of the lining block are adjusted to meet the vehicle limit needs of larger loads, while saving the cost of molds and installation brackets.
It realizes that on the basis of ensuring the comfort of the initial stage contact, the vehicle limit needs of larger loads are met, and through multi-stage stiffness curve adjustment, the performance of the buffer block is improved while saving production and installation costs.
Smart Images
Figure CN223049289U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automotive buffer structures, and more particularly, to a buffer block structure with composite stiffness. Background Art
[0002] A buffer block is an elastic element on an automobile, which is used to prevent components such as the lower control arm and axle of the chassis from colliding with other components during vehicle driving, thereby causing damage, and to limit the bouncing stroke of the chassis wheels. Therefore, the buffer block itself needs to have a certain stiffness to achieve the function of limiting displacement. If the stiffness of the buffer block is too large, the suspension performance will be reduced, resulting in a decrease in the buffering and comfort of the vehicle. Passenger cars generally use buffer blocks made of polyurethane with uniform density. The initial contact stiffness is small, and as the displacement increases, the stiffness becomes larger and larger to achieve the limiting function. If the vehicle weight is heavy, only by increasing the density of the buffer block to increase the stiffness can the limiting function be achieved. In this way, the stiffness at the initial stage and the end of the buffer block will increase as a whole, affecting the comfort of the vehicle when contacting the buffer block. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a buffer block structure with composite stiffness. By using polyurethane lining blocks with different densities, on the basis of ensuring the comfort of initial contact, the limiting requirements of vehicles with greater loads are met, and the requirement of multi-stage stiffness curve adjustment is realized. At the same time, the cost of opening molds for multiple buffer blocks and installation brackets can be saved.
[0004] The described buffer block structure with composite stiffness includes a buffer block body and a lining block. One end of the buffer block body is provided with an upper bearing platform, and the other end is provided with a lower bearing platform. The center position of the upper bearing platform is provided with an installation groove extending into the buffer block body; the lining block is embedded in the installation groove; wherein, the density of the lining block is greater than that of the buffer block body.
[0005] Preferably, a first collapse groove is provided at the connection between the upper bearing platform and the buffer block body.
[0006] Preferably, a second collapse groove is provided at the connection between the lower bearing platform and the buffer block body.
[0007] Preferably, a first communication groove communicating with the lower bearing platform is provided at the bottom of the installation groove.
[0008] Preferably, a funnel groove is provided at the edge of the bottom of the lower bearing platform communicating with the first communication groove.
[0009] Preferably, a second communication groove adapted to the first communication groove is provided at the center position of the lining block.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. By using polyurethane lining blocks with different densities, on the basis of ensuring the initial contact comfort, the vehicle limit requirements for greater loads are met, and the requirement for adjusting the multi-segment stiffness curve is achieved.
[0012] 2. It can save the costs of dies and installation brackets for multiple buffer blocks. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is the front view of the present utility model;
[0014] Figure 2 is the assembly schematic diagram of the present utility model;
[0015] Figure 3 is the cross-sectional structure schematic diagram of the present utility model;
[0016] Figure 4 is the stiffness curve diagram of the present utility model.
[0017] In the figure, 100 is the buffer block body; 101 is the first collapse groove; 102 is the second collapse groove; 103 is the first communication groove; 104 is the funnel groove; 110 is the upper bearing platform; 111 is the installation groove; 120 is the lower bearing platform; 200 is the lining block; 210 is the second communication groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following further describes the present utility model with reference to the accompanying drawings:
[0019] The orientation terms involved in the paragraphs of the detailed description are only for the convenience of those skilled in the art to understand the technical solutions described in this application according to the visual orientation shown in the accompanying drawings. Unless otherwise clearly specified and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0020] As Figures 1 to 3A buffer block structure with composite stiffness as shown includes a buffer block body 100 and an inner lining block 200. One end of the buffer block body 100 is provided with an upper bearing platform 110, and the other end is provided with a lower bearing platform 120. An installation groove 111 extending into the buffer block body 100 is provided at the central position of the upper bearing platform 110. The inner lining block 200 is embedded in the installation groove 111. Among them, the density of the inner lining block 200 is greater than that of the buffer block body 100. In this way, the inner lining block 200 is installed in the buffer block body 100 and is installed at an appropriate position together with the buffer block body 100. Since the density of the inner lining block 200 is greater than that of the buffer block body 100, when the buffer block body 100 and the inner lining block 200 are squeezed, the buffer block body 100 is first compressed to meet the requirements of limit comfort. When the buffer block body 100 is continuously compressed to the height of the inner lining block 200, the buffer block participates in the buffering work to meet the requirements of large stiffness limit. Thus, through the cooperation of the buffer block body 100 and the inner lining block 200, the requirement of multi-stage stiffness curve adjustment can be achieved.
[0021] As Figure 2 and Figure 3 shown, at the connection between the upper bearing platform 110 and the buffer block body 100, a first collapse groove 101 is provided. In this way, through the first collapse groove 101, when the buffer block body 100 is compressed, a pre-compression space can be provided for the upper bearing platform 110, so that the upper bearing platform 110 is not prone to cracking when subjected to a large instantaneous pressure. Thus, the service life of the buffer block body 100 is improved.
[0022] As Figure 2 and Figure 3 shown, at the connection between the lower bearing platform 120 and the buffer block body 100, a second collapse groove 102 is provided. In this way, through the second collapse groove 102, when the buffer block body 100 is compressed, a pre-compression space can be provided for the lower bearing platform 120, so that the lower bearing platform 120 is not prone to cracking when subjected to a large instantaneous pressure, further improving the service life of the buffer block body 100.
[0023] As Figure 3 shown, at the bottom of the installation groove 111, a first communication groove 103 communicating with the lower bearing platform 120 is provided. In this way, through the first communication groove 103, it is convenient to install the buffer block body 100 at a fixed position. On the one hand, it is not prone to displacement when subjected to pressure. On the other hand, it can be compressed along the first communication groove 103 when subjected to pressure, improving the running stability of the buffer block body 100 and the inner lining block 200.
[0024] As Figure 3As shown, at the edge of the bottom of the lower bearing platform 120 communicating with the first communication groove 103, a funnel groove 104 is provided. In this way, through the funnel groove 104, it can play a guiding role during the installation of the buffer block body 100, enabling the buffer block body 100 to be quickly installed, so as to improve the installation efficiency.
[0025] As Figure 3 shown, at the central position of the inner lining block 200, a second communication groove 210 adapted to the first communication groove 103 is provided. In this way, the inner lining block 200 can be installed at a fixed position synchronously with the buffer block body 100 through the cooperation of the first communication groove 103 and the second communication groove 210, ensuring the synchronization of the two.
[0026] Finally, although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 buffer block structure with composite stiffness, comprising a buffer block body (100) and an inner lining block (200), characterized in that: An upper support platform (110) is provided at one end of the buffer block body (100), and a lower support platform (120) is provided at the other end, and a mounting groove (111) extending into the buffer block body (100) is provided at the center of the upper support platform (110); the liner block (200) is embedded in the mounting groove (111); wherein the density of the liner block (200) is greater than the density of the buffer block body (100).
2. A composite stiffness buffer block structure according to claim 1, characterized in that: A first collapse groove (101) is provided at the connection between the upper support platform (110) and the buffer block body (100).
3. The composite stiffness buffer block structure according to claim 1, characterized in that: A second collapse groove (102) is provided at the connection between the lower support platform (120) and the buffer block body (100).
4. The composite stiffness buffer block structure according to claim 1, characterized in that: A first communicating groove (103) communicating with the lower support platform (120) is provided at the bottom of the installation groove (111).
5. The composite stiffness buffer block structure according to claim 4, characterized in that: A funnel groove (104) is provided at the edge of the bottom of the lower support platform (120) which is connected to the first connecting groove (103).
6. The composite stiffness buffer block structure according to claim 1, characterized in that: A second connecting groove (210) adapted to the first connecting groove (103) is provided at the center of the lining block (200).