CN220535591U - Interference fit energy-absorbing block - Google Patents
Interference fit energy-absorbing block Download PDFInfo
- Publication number
- CN220535591U CN220535591U CN202321983275.2U CN202321983275U CN220535591U CN 220535591 U CN220535591 U CN 220535591U CN 202321983275 U CN202321983275 U CN 202321983275U CN 220535591 U CN220535591 U CN 220535591U
- Authority
- CN
- China
- Prior art keywords
- energy
- main body
- interference fit
- backboard
- block main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010521 absorption reaction Methods 0.000 claims abstract description 23
- 230000007704 transition Effects 0.000 claims abstract description 17
- 238000005187 foaming Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Vibration Dampers (AREA)
Abstract
The utility model relates to the technical field of automobile safety, in particular to an interference fit energy absorption block which comprises an energy absorption block main body and a backboard, wherein a plurality of transition grooves are formed in one side, close to the backboard, of the energy absorption block main body, a convex column is fixedly connected to the middle of each transition groove, a plurality of through holes communicated with an inner cavity of the backboard are formed in one side, close to each transition groove, of the backboard, the positions of the plurality of through holes and the positions of the plurality of transition grooves are in one-to-one correspondence, and interference fit is formed between the convex columns and the through holes through press fitting so as to fixedly connect the energy absorption block main body and the backboard. After the energy-absorbing block main body and the backboard are pressed, interference fit is formed between the convex columns and the through holes, so that an interference effect is generated, and the energy-absorbing block main body is fixed on the backboard.
Description
Technical Field
The utility model relates to the technical field of automobile safety, in particular to an interference fit energy absorption block.
Background
The automobile energy absorption block is commonly called a buffer module, and the outer plate is attached to the cross beam, so that the buffer function is achieved under the condition that the automobile collides strongly, the anti-collision performance of the automobile is enhanced, and the safety is improved. From the safety aspect, the automobile can play a role in buffering when a low-speed collision accident occurs, and front and rear automobile bodies are protected; can play a role in protecting pedestrians when accidents occur with the pedestrians.
The utility model provides a compound foam aluminum anticollision roof beam car bumper of current patent grant bulletin number CN217864007U, includes panel, fine compound foam aluminum of glass and backplate, and the panel, fine compound foam aluminum of glass and backplate in this application adopt silicone adhesive bonding together, and bonding department is located between the contact surface of two structures, and this makes the state that is difficult to directly observe bonding, and when bonding department wearing and tearing or inefficacy, when need repair or change, increased maintenance work load.
In order to solve the problems, an interference fit energy absorption block is designed.
Disclosure of Invention
The utility model aims to provide an interference fit energy absorption block so as to solve the problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an interference fit energy-absorbing piece, includes energy-absorbing piece main part and backplate, the energy-absorbing piece main part is close to be provided with a plurality of transition recesses on one side of backplate, the middle part fixedly connected with projection of transition recess, the backplate is close to one side of transition recess is offered a plurality of and is passed through with the perforation of backplate inner chamber intercommunication, a plurality of the perforation with a plurality of the position one-to-one of transition recess, the projection pass through press-fitting with form interference fit between the perforation, with fixed connection energy-absorbing piece main part and backplate.
Optionally, the energy absorption block main body and the one side of backplate that is close to each other are arc structure.
Optionally, the energy absorption block main body is provided with a reinforcing rib.
Optionally, the energy absorption block body is made of a foaming material, and the foaming material is foaming polypropylene.
Optionally, the outer shape of the energy absorption block main body is matched with the inner shape of the panel during installation.
Compared with the prior art, the utility model has the following beneficial effects: after the energy absorption block main body and the backboard are pressed, interference fit is formed between the convex columns and the through holes, so that an interference effect is generated, and the energy absorption block main body is fixed on the backboard.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic structural view of an energy absorbing block body of the present utility model;
FIG. 3 is a schematic view of the structure of the back plate of the present utility model;
fig. 4 is a schematic cross-sectional view of the present utility model.
In the figure: 1. an energy absorbing block body; 2. a back plate; 3. a convex column; 4. a transition groove; 5. and (5) perforating.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, an embodiment of the present utility model provides an interference fit energy absorbing block, which includes an energy absorbing block main body 1 and a back plate 2, wherein a plurality of transition grooves 4 are provided on a side of the energy absorbing block main body 1, which is close to the back plate 2, a convex column 3 is fixedly connected with a middle part of the transition grooves 4, a plurality of through holes 5, which are communicated with an inner cavity of the back plate 2, are provided on a side of the back plate 2, which is close to the transition grooves 4, the positions of the through holes 5 and the transition grooves 4 are in one-to-one correspondence, and the convex column 3 and the through holes 5 form interference fit to fixedly connect the energy absorbing block main body 1 and the back plate 2.
Specifically, after the energy-absorbing block main body 1 and the backboard 2 are pressed, interference fit is formed between the convex columns 3 and the through holes 5, so that an interference effect is generated, and the energy-absorbing block main body 1 is fixed on the backboard 2.
Furthermore, the surfaces of the energy absorption block main body 1 and the backboard 2, which are close to each other, are arc-shaped structures.
Specifically, the arc structure makes there is great area of contact between energy-absorbing piece main part 1 and backplate 2, can make stress evenly distributed on whole contact surface, improves the bearing capacity of contact surface, for the plane, arc structure can reduce contact pressure, improves contact strength, still is favorable to reducing the wearing and tearing of material, further improves the stability when energy-absorbing piece main part 1 uses.
Further, in order to improve the structural strength of the energy absorption block main body 1, the energy absorption block main body 1 is provided with reinforcing ribs.
Further, in order to provide a buffering and energy absorbing effect, the energy absorbing block body 1 is made of a foaming material, and the foaming material is foaming polypropylene, namely EPP material.
Further, in order to improve stability of the energy absorption block after the main body is installed, the outline shape of the energy absorption block main body 1 is matched with the inner outline shape of the panel during installation.
After the energy-absorbing block main body 1 and the backboard 2 are pressed and assembled, interference fit is formed between the convex columns 3 and the through holes 5, so that an interference effect is generated, the energy-absorbing block main body 1 is fixed on the backboard 2, one side of the energy-absorbing block main body 1, which is close to the backboard 2, is of an arc-shaped structure, stress is uniformly distributed on the whole contact surface, the bearing capacity of the contact surface is improved, the arc-shaped structure can reduce contact pressure and improve contact strength, and compared with a bonding mode, the energy-absorbing block main body 1 is more convenient to install and maintain and replace, the problem that the bonding mode is inconvenient to repair or replace is solved, the energy-absorbing block main body 1 is convenient to use, and time and energy consumed by installation and maintenance are reduced.
Although embodiments of the present utility model have been shown 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 principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an interference fit energy-absorbing piece, includes energy-absorbing piece main part (1) and backplate (2), its characterized in that: the energy-absorbing block is characterized in that a plurality of transition grooves (4) are formed in one side, close to the back plate (2), of the main body (1), a convex column (3) is fixedly connected to the middle of each transition groove (4), a plurality of through holes (5) communicated with the inner cavity of the back plate (2) are formed in one side, close to the transition grooves (4), of the back plate (2), the through holes (5) correspond to the positions of the transition grooves (4) one by one, and the convex column (3) is in interference fit with the through holes (5) through press fitting so as to be fixedly connected with the main body (1) and the back plate (2).
2. An interference fit energy absorbing block as defined in claim 1, wherein: the energy absorption block main body (1) and the back plate (2) are of arc-shaped structures on the surfaces close to each other.
3. An interference fit energy absorbing block as defined in claim 1, wherein: the energy absorption block main body (1) is provided with reinforcing ribs.
4. An interference fit energy absorbing block as defined in claim 1, wherein: the energy absorption block main body (1) is made of a foaming material, and the foaming material is foaming polypropylene.
5. An interference fit energy absorbing block as defined in claim 1, wherein: the outline shape of the energy absorption block main body (1) is matched with the inner outline shape of the panel during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983275.2U CN220535591U (en) | 2023-07-26 | 2023-07-26 | Interference fit energy-absorbing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983275.2U CN220535591U (en) | 2023-07-26 | 2023-07-26 | Interference fit energy-absorbing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220535591U true CN220535591U (en) | 2024-02-27 |
Family
ID=89970993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321983275.2U Active CN220535591U (en) | 2023-07-26 | 2023-07-26 | Interference fit energy-absorbing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220535591U (en) |
-
2023
- 2023-07-26 CN CN202321983275.2U patent/CN220535591U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |