CN212950865U - Connection structure and car - Google Patents
Connection structure and car Download PDFInfo
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- CN212950865U CN212950865U CN202021305228.9U CN202021305228U CN212950865U CN 212950865 U CN212950865 U CN 212950865U CN 202021305228 U CN202021305228 U CN 202021305228U CN 212950865 U CN212950865 U CN 212950865U
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Abstract
The application provides a connection structure and car, wherein, connection structure includes: a base plate including a connection face; the base is fixed on the connecting surface of the bottom plate and is provided with an opening and a groove extending towards the interior of the base along the opening; the connecting column is fixed on the base and is positioned on one side of the base, which is far away from the bottom plate; the bottom plate, the base and the connecting column are of an integrated structure formed by injection molding. The application provides a connection structure moulds plastics the refrigerated in-process after connection structure, because the wall thickness of base and bottom plate junction is even, has guaranteed that the cooling rate of base and bottom plate junction is the same with the cooling rate of other parts to guaranteed that the whole shrink rate of base and bottom plate is the same, avoided forming sunken defect of moulding plastics on the bottom plate, guaranteed the planarization of bottom plate outward appearance.
Description
Technical Field
The application relates to the technical field of machinery, in particular to a connecting structure and an automobile with the same.
Background
The statements in this application as background to the related art related to this application are merely provided to illustrate and facilitate an understanding of the contents of the present application and are not to be construed as an admission that the applicant expressly or putatively admitted the prior art of the filing date of the present application at the first filing date.
At present, more and more plastic parts replace metal parts, and the plastic parts are widely applied. For example, plastic parts are used for realizing light weight and energy conservation of automobiles, and plastic parts such as household appliances, computers, toys and the like are also widely applied. The plastic parts are molded by heating and melting plastic particles by an injection molding machine, but the injection molded plastic parts are easy to have sunken injection molding defects and influence the appearance of products.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a coupling mechanism and car, has solved the problem that has sunken defect of moulding plastics on the outward appearance face of injection molding, has guaranteed the planarization of product outward appearance face.
An embodiment of a first aspect of the present application provides a connection structure, including: a base plate including a connection face; the base is fixed on the connecting surface of the bottom plate and provided with an opening and a groove extending towards the interior of the base along the opening; the connecting column is fixed on the base and is positioned on one side, far away from the bottom plate, of the base; the bottom plate, the base and the connecting column are of an integrated structure formed by injection molding.
The application provides a connection structure moulds plastics the refrigerated in-process after connection structure, because the wall thickness of base and bottom plate junction is even, has guaranteed that the cooling rate of base and bottom plate junction is the same with the cooling rate of other parts to guaranteed that the whole shrink rate of base and bottom plate is the same, avoided forming sunken defect of moulding plastics on the bottom plate, guaranteed the planarization of bottom plate outward appearance.
In some of these embodiments, the wall thickness of the base is less than the plate thickness of the base plate where the base joins the base plate.
In the embodiment, the phenomenon that the cooling speed of the joint of the base and the base is lower than that of other parts to form a recess due to the fact that the thickness of the wall of the joint of the base and the base is too thick is avoided, so that the defect of forming the recess in the base in an injection molding mode is avoided, the flatness of the appearance surface of the base is guaranteed, and the market competitiveness of products is improved.
In some of these embodiments, where the base is joined to the base plate, the wall thickness of the base is no greater than one-half of the plate thickness of the base plate.
In the embodiment, if the wall thickness of the base is greater than one half of the plate thickness of the bottom plate, the wall thickness of the joint of the base and the bottom plate is greater, so that the cooling speed of the joint of the base and the bottom plate is less than the cooling speed of other parts to form a recess, therefore, the wall thickness of the base is less than one half of the plate thickness of the bottom plate, the cooling speed of the joint of the base and the bottom plate is ensured to be the same as the cooling speed of other parts, the contraction rate of the joint of the base and the bottom plate is ensured to be the same as that of other parts, the injection molding defect that the recess is formed on the bottom plate is avoided, the smoothness of the appearance surface of the bottom plate is.
In some of these embodiments, the wall thickness of the first end of the base is less than the wall thickness of the second end of the base; the base with the one end that the bottom plate is connected is the first end, the base is kept away from the one end of bottom plate is the second end.
In the embodiment, the uniformity of the wall thickness of the joint of the first end of the base and the bottom plate is ensured, the injection molding defect of the depression formed on the bottom plate is avoided, and the flatness of the appearance surface of the bottom plate is ensured.
In some of these embodiments, the wall thickness of the base increases gradually from the first end to the second end.
In the embodiment, the wall thickness of the base is gradually and uniformly changed, so that the base has better mechanical strength, the use reliability of the base is improved, the service life of a product is prolonged, and the market competitiveness of the product is improved.
In some of these embodiments, the first end of the base is provided with an expansion slot at the junction of the base and the bottom plate, the intersection of the expansion slot and the groove forming a step.
In this embodiment, the setting of expansion groove has guaranteed the homogeneity of the first end of base and bottom plate junction wall thickness, has avoided forming sunken injection moulding defect on the bottom plate, has guaranteed the planarization of bottom plate outward appearance.
In some embodiments, the expansion grooves include a first expansion groove and a second expansion groove, the first expansion groove is respectively arranged on two opposite groove walls of the groove, the second expansion groove is located between the two opposite groove walls, and the second expansion groove is respectively communicated with the two first expansion grooves.
In the embodiment, the base is in a rectangular shape, so that the base has high mechanical strength, the use reliability of the base is improved, the service life of a product is prolonged, and the market competitiveness of the product is improved.
In some of these embodiments, the width of the expansion slot tapers along the first end to the second end.
In this embodiment, guaranteed the even change of the wall thickness of the first end of base, made the base have great mechanical strength to improve the use reliability of base, and then increased the life of product, increased the market competition of product.
In some embodiments, an orthographic projection of the connecting column on the connecting surface is located inside an orthographic projection of a groove wall of the groove on the connecting surface.
In the embodiment, the connection strength of the connecting column and the bottom plate is ensured, and the probability of breakage of the connecting column is reduced, so that the use reliability of the product is ensured, and the market competitiveness of the product is increased.
Embodiments of the second aspect of the present application provide an automobile including the connection structure of any one of the above.
The application provides an automobile, the outward appearance face does not have the defect of moulding plastics such as sunken, has guaranteed the planarization of outward appearance face, has increased the market competition of product.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Additional aspects and advantages of the present application will be set forth in part in the description which follows, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic perspective view of a first embodiment of a connection structure according to the present application;
FIG. 2 is a schematic cross-sectional view of the connection shown in FIG. 1;
FIG. 3 is a front view of the connection shown in FIG. 1;
FIG. 4 is a schematic perspective view of a second embodiment of a connection structure according to the present application;
FIG. 5 is a front view of the connection shown in FIG. 4;
FIG. 6 is a schematic perspective view of a third embodiment of a connection structure according to the present application;
fig. 7 is a front view schematically showing the connection structure shown in fig. 6.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:
the base plate 10, the connecting surface 11, the appearance surface 12, the base 20, the opening 21, the groove 22, the connecting column 30, the expansion groove 40, the first expansion groove 41 and the second expansion groove 42.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
The following discussion provides a number of embodiments of the application. While each embodiment represents a single combination of applications, the various embodiments of the disclosure may be substituted or combined in any combination, and thus, the disclosure is intended to include all possible combinations of the same and/or different embodiments of what is described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then this application should also be considered to comprise an embodiment that comprises A, B, C, D in all other possible combinations, although this embodiment may not be explicitly recited in the text below.
In the related technology, plastic parts are molded by heating and melting plastic particles by an injection molding machine, and when the plastic parts are cooled, a thinner part of the plastic parts is drawn by a thicker part of the plastic parts, and the plastic parts are deformed in a concave manner on the surface of a finished product. In the manufacturing of plastic parts with planar appearance surfaces, the wall thicknesses of the column structures of the internal reinforcing ribs and the assembling screws are larger, so that the cooling speed of the plastic at the column structures is increased, the appearance surfaces of the plastic parts are easy to have a sunken injection molding defect, and the market competitiveness of products is reduced.
As shown in fig. 1 to 7, an embodiment of the first aspect of the present application provides a connection structure including: a base plate 10, a base 20 and a connecting column 30.
The base plate 10 includes a connecting surface 11 and an appearance surface 12, the appearance surface 12 is a plane, and the connecting surface 11 and the appearance surface 12 are located on two opposite sides of the base plate 10.
The base 20 is fixed on the connecting surface 11 of the base plate 10. The base 20 has an opening 21 and a groove 22 extending along the opening 21 toward the inside of the base 20.
The connecting column 30 is fixed on the base 20 and is located on one side of the base 20 far away from the bottom plate 10. The connecting column 30 is a screw column having a screw hole for fixedly connecting with a screw.
The bottom plate 10, the base 20 and the connecting column 30 are of an integral structure formed by injection molding.
If the connecting column 30 and the bottom plate 10 are directly injection molded, the thickness of the connecting position of the connecting column 30 and the bottom plate 10 is larger than that of the bottom plate 10, so that the cooling speed of the connecting position of the base 20 and the bottom plate 10 is smaller than that of other parts, plastics at other positions of the bottom plate 10 can be drawn together by the plastics at the connecting column 30 and the bottom plate 10, a concave injection molding defect is formed on the appearance surface 12 of the bottom plate 10, and the attractiveness of a product is affected. And the connection structure that this application provided, spliced pole 30 is through base 20 and bottom plate 10 injection moulding, in the junction of base 20 and bottom plate 10, the wall thickness of base 20 is lighter than the board of bottom plate 10 thick, make the wall thickness of base 20 and bottom plate 10 junction even, at the refrigerated in-process after connection structure moulds plastics, the cooling rate of having guaranteed base 20 and bottom plate 10 junction is the same with the cooling rate of other parts, thereby guaranteed that base 20 and bottom plate 10 junction is the same with the shrinkage rate of other parts, avoided forming sunken injection moulding plastics defect on bottom plate 10, the planarization of bottom plate 10 outward appearance has been guaranteed.
As shown in fig. 1 to 7, in some embodiments of the present application, at the connection portion between the base 20 and the bottom plate 10, the wall thickness D2 of the base 20 is smaller than the plate thickness D1 of the bottom plate 10, so that it is avoided that the wall thickness at the connection portion between the base 20 and the bottom plate 10 is too thick, which results in that the cooling rate at the connection portion between the base 20 and the bottom plate 10 is lower than that at other portions to form a recess, i.e. it is avoided that the injection molding defect of the recess is formed on the bottom plate 10, the flatness of the appearance surface 12 of the bottom plate 10 is ensured, and the market competitiveness of the product is increased.
As shown in fig. 1-7, in some embodiments of the present application, where the base 20 is connected to the base plate 10, the wall thickness D2 of the base 20 is no greater than one-half of the plate thickness D1 of the base plate 10. If the wall thickness D2 of the base 20 is greater than one-half of the plate thickness D1 of the bottom plate 10, and the wall thickness D2 of the joint between the base 20 and the bottom plate 10 is greater, so that the cooling speed of the joint between the base 20 and the bottom plate 10 is less than that of other parts to form a recess, and therefore, the wall thickness D2 of the base 20 is less than one-half of the plate thickness D1 of the bottom plate 10, and the cooling speed of the joint between the base 20 and the bottom plate 10 is ensured to be the same, so that the contraction rate of the joint between the base 20 and the bottom plate 10 is ensured to be the same as that of other parts, the injection molding defect of forming the recess on the bottom plate 10 is avoided, the smoothness of the appearance surface 12 of the bottom.
As shown in fig. 1-7, in some embodiments of the present application, the wall thickness of the first end of the base 20 is less than the wall thickness of the second end of the base 20; the end of the base 20 connected to the bottom plate 10 is the first end, and the end of the base 20 away from the bottom plate 10 is the second end.
In this embodiment, the wall thickness of the first end of the base 20 is smaller than that of the second end of the base 20, so that on one hand, the uniformity of the wall thickness of the joint between the first end of the base 20 and the bottom plate 10 is ensured, the cooling speed of the joint between the base 20 and the bottom plate 10 is the same as that of other parts, the injection molding defect of forming a recess on the bottom plate 10 is avoided, and the flatness of the appearance surface 12 of the bottom plate 10 is ensured; on the other hand, the wall thickness of the second end of the base 20 is larger, so that the base 20 has larger mechanical strength, thereby improving the use reliability of the base 20, further prolonging the service life of the product, and increasing the market competitiveness of the product.
As shown in fig. 1 to 7, in some embodiments of the present application, an orthographic projection of the connecting post 30 on the connecting surface 11 is located inside an orthographic projection of a groove wall of the groove 22 on the connecting surface 11.
In this embodiment, the connection strength between the connection column 30 and the bottom plate 10 is ensured, and the probability of breakage of the connection column 30 is reduced, so that the use reliability of the product is ensured, and the market competitiveness of the product is increased.
Embodiments of the base 20 are described in detail below with reference to the drawings.
Example 1
As shown in fig. 1 to 3, in the connection structure provided in embodiment 1 of the present application, the wall thickness of the base 20 is smaller than the plate thickness of the bottom plate 10; wherein, the first end of the base 20 is provided with an expansion groove 40, the expansion groove 40 is located at the connection position of the base 20 and the bottom plate 10, and the intersection of the expansion groove 40 and the groove 22 forms a step.
In this embodiment, the expansion slot 40, on one hand, ensures the uniformity of the wall thickness of the first end of the base 20 and the plate thickness of the bottom plate 10, thereby ensuring that the contraction rate of the joint between the base 20 and the bottom plate 10 is the same as that of other parts, avoiding the injection molding defect of forming a recess on the bottom plate 10, and ensuring the flatness of the appearance of the bottom plate 10; on the other hand, the expansion slot 40 is disposed at the first end of the base 20, so that other portions of the base 20 have a larger wall thickness, and the base 20 has a larger mechanical strength, thereby improving the reliability of the base 20, further increasing the service life of the product, and increasing the market competitiveness of the product.
In some embodiments of the present disclosure, as shown in fig. 3, the expansion slots 40 include a first expansion slot 40 and a second expansion slot 40, the first expansion slot 40 is disposed on each of two opposite slot walls of the concave slot 22, the second expansion slot 40 is disposed between the two opposite slot walls, and the second expansion slot 40 is respectively communicated with the two first expansion slots 40.
In this embodiment, the groove 22 is shaped as a rectangular body, and the groove 22 is surrounded by five groove walls, wherein a first groove wall is the connecting surface 11 of the bottom plate 10, a second groove wall is disposed opposite to the first groove wall, a third side wall is disposed opposite to the opening 21 of the groove 22, a fourth side wall and a fifth side wall are respectively connected to the first groove wall, the second groove wall and the third groove wall, and the fourth side wall and the fifth side wall are disposed opposite to each other; the shape of the base 20 can be matched with the shape of the groove 22, so that the base 20 has higher mechanical strength, the use reliability of the base 20 is improved, the service life of a product is prolonged, and the market competitiveness of the product is increased. Of course, the shape of the base 20 may be arc, triangular, etc., and those skilled in the art can select the shape of the base 20 according to the specific requirements.
Example 2
As shown in fig. 4 and 5, the scheme provided by the embodiment 2 of the present application is substantially the same as the scheme provided by the embodiment 1, and the main differences are that: the width of the expansion slot 40 is tapered from the first end to the second end.
In the embodiment, on one hand, the uniformity of the wall thickness of the first end of the base 20 and the plate thickness of the bottom plate 10 is ensured, so that the contraction rate of the joint of the base 20 and the bottom plate 10 is ensured to be the same as that of other parts, the injection molding defect of forming a recess on the bottom plate 10 is avoided, and the appearance smoothness of the bottom plate 10 is ensured; on the other hand, the wall thickness of the first end of the base 20 is ensured to be uniformly changed, so that the base 20 has higher mechanical strength, the use reliability of the base 20 is improved, the service life of the product is prolonged, and the market competitiveness of the product is increased.
Example 3
As shown in fig. 6 and 7, in the connection structure provided in embodiment 3 of the present application, the wall thickness of the base 20 is smaller than the plate thickness of the bottom plate 10; the wall thickness of the base 20 increases from the first end to the second end.
In this embodiment, on one hand, the wall thickness of the base 20 is smaller than the plate thickness of the bottom plate 10, so that the wall thickness of the joint between the base 20 and the bottom plate 10 is prevented from being too thick, and the cooling speed of the joint between the base 20 and the bottom plate 10 is smaller than that of other parts to form a recess, that is, the injection molding defect of forming the recess on the bottom plate 10 is avoided, the smoothness of the appearance surface 12 of the bottom plate 10 is ensured, and the market competitiveness of the product is increased; on the other hand, the wall thickness of the base 20 is gradually and uniformly changed, so that the base 20 has better mechanical strength, thereby improving the use reliability of the base 20, further prolonging the service life of the product and increasing the market competitiveness of the product.
An embodiment of the second aspect of the present application provides an automobile, including the connection structure described in any one of the above.
The application provides an automobile, connection structure are for setting up the spare part at the automobile, and the outward appearance face of connection structure's bottom plate is the outward appearance face of automobile, and the outward appearance face does not have sunken defect of moulding plastics, has guaranteed the planarization of outward appearance face, has increased the market competition of product.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A connecting structure, characterized by comprising:
a base plate including a connection face;
the base is fixed on the connecting surface of the bottom plate and provided with an opening and a groove extending towards the interior of the base along the opening; and
the connecting column is fixed on the base and is positioned on one side, far away from the bottom plate, of the base;
the bottom plate, the base and the connecting column are of an integrated structure formed by injection molding.
2. The connection structure according to claim 1,
the wall thickness of the base is smaller than the plate thickness of the bottom plate at the joint of the base and the bottom plate.
3. The connection structure according to claim 2,
the wall thickness of the base is not more than one-half of the plate thickness of the bottom plate at the connection between the base and the bottom plate.
4. The connection structure according to claim 2,
the wall thickness of the first end of the base is smaller than the wall thickness of the second end of the base; the base with the one end that the bottom plate is connected is the first end, the base is kept away from the one end of bottom plate is the second end.
5. The connection structure according to claim 4,
the wall thickness of the base increases gradually from the first end to the second end.
6. The connection structure according to claim 4,
the first end of the base is provided with an expansion groove, the expansion groove is located at the joint of the base and the bottom plate, and a step is formed at the intersection of the expansion groove and the groove.
7. The connection structure according to claim 6,
the expansion grooves comprise a first expansion groove and a second expansion groove, the first expansion grooves are respectively arranged on the two groove walls of the groove, which are oppositely arranged, the second expansion groove is positioned between the two oppositely arranged groove walls, and the second expansion groove is respectively communicated with the two first expansion grooves.
8. The connection structure according to claim 6,
the width of the expansion slot is gradually reduced from the first end to the second end.
9. The connection structure according to claim 1,
the connecting column is located in the orthographic projection of the connecting surface and is located inside the orthographic projection of the groove wall of the groove on the connecting surface.
10. An automobile characterized by comprising the connection structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021305228.9U CN212950865U (en) | 2020-07-06 | 2020-07-06 | Connection structure and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021305228.9U CN212950865U (en) | 2020-07-06 | 2020-07-06 | Connection structure and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212950865U true CN212950865U (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021305228.9U Active CN212950865U (en) | 2020-07-06 | 2020-07-06 | Connection structure and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212950865U (en) |
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2020
- 2020-07-06 CN CN202021305228.9U patent/CN212950865U/en active Active
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