CN221233418U - Connecting and fixing structure between thin-wall plastic parts - Google Patents
Connecting and fixing structure between thin-wall plastic parts Download PDFInfo
- Publication number
- CN221233418U CN221233418U CN202323335813.XU CN202323335813U CN221233418U CN 221233418 U CN221233418 U CN 221233418U CN 202323335813 U CN202323335813 U CN 202323335813U CN 221233418 U CN221233418 U CN 221233418U
- Authority
- CN
- China
- Prior art keywords
- lower side
- side edge
- metal insert
- top cover
- thin
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- 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.)
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Links
- 239000002184 metal Substances 0.000 claims abstract description 48
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The utility model discloses a connecting and fixing structure between thin-wall plastic parts, which comprises a base plate and a top cover which are connected in a butt joint way, wherein the base plate comprises a lower side edge which extends upwards, the top cover comprises an upper side edge which extends downwards and is sleeved outside the lower side edge, the top cover also comprises a plurality of metal inserts which are integrally injection-molded in the lower side edge and are arranged at intervals along the periphery of a port of the lower side edge, the wall thickness of the lower side edge is 2.2-5.5 mm, the thickness of the metal inserts is smaller than that of the lower side edge, the metal inserts comprise a main body part and at least one locking part connected to the outer edge surface of the main body part, and threaded holes are formed in the middle of the main body part and penetrate through the metal inserts of the upper side edge and the lower side edge in a screwing mode so that the top cover and the base plate are firmly connected. According to the utility model, the metal inserts are integrally injection-molded in the lower side edge, so that the addition of additional components is avoided, meanwhile, the alignment of the screw and the threaded hole can be facilitated, the installation between the top cover and the chassis is simplified, and the connection strength is ensured.
Description
Technical Field
The utility model relates to the technical field of air conditioning equipment, in particular to a connecting and fixing structure between thin-wall plastic parts.
Background
The shell of the air conditioner of the existing motor home is generally formed by involution of a top cover and a chassis, the top cover and the chassis are thin-walled pieces with the wall thickness smaller than 6mm, and the connecting structure between the existing top cover and the chassis is generally as follows: the inner wall of the chassis is fixedly connected with a metal sheet, the upper end part of the metal sheet is provided with a bending part, and the bending part is provided with a threaded hole, so that the top cover is penetrated through by a screw and screwed into the threaded hole of the metal sheet to realize the fixed connection between the top cover and the chassis; however, in practical application, the top cover and the chassis of the connecting structure have the problem of difficult alignment in installation, namely, when the screw extends into the chassis, the metal sheet is easy to push so that the screw is difficult to align with the threaded hole of the bending part for screwing.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art, and provides a connecting and fixing structure between thin-wall plastic parts, which can effectively simplify the installation between a top cover and a chassis and ensure the installation reliability of the top cover and the chassis.
In order to achieve the above purpose, the utility model provides a connecting and fixing structure between thin-wall plastic parts, which comprises a base plate and a top cover which are connected in a butt joint way, wherein the base plate comprises a lower side edge which extends upwards, the top cover comprises an upper side edge which extends downwards and is sleeved outside the lower side edge, the top cover also comprises a plurality of metal inserts which are integrally injection-molded in the lower side edge and are arranged at intervals along the circumference along the opening of the lower side edge, the wall thickness of the lower side edge is 2.2mm-5.5mm, the thickness of each metal insert is smaller than that of the lower side edge, each metal insert comprises a main body part and at least one locking part connected to the outer edge surface of the main body part, and the middle part of the main body part is provided with a threaded hole which is penetrated through a screw into the metal inserts of the upper side edge and the lower side edge so as to realize stable connection of the top cover and the base plate.
Further provided is that: at least one reinforcing rib is arranged on the inner wall of the lower side edge corresponding to the metal insert.
Further provided is that: the aperture of the threaded hole on the metal insert is M4-M6.
Further provided is that: the wall thickness of the upper side edge is 2.2mm-5.5mm.
Further provided is that: the cross-sectional shape of the main body part of the metal insert is circular or triangular or rectangular or pentagonal or hexagonal.
Compared with the prior art, the utility model has simple and reasonable structure, is directly and integrally formed in the chassis through the metal insert, avoids the addition of additional components, and can facilitate the screw to pass through the top cover and be screwed into the metal insert of the chassis so as to facilitate the stable connection between the two; meanwhile, the bonding strength between the metal insert and the chassis can be improved through the locking part of the metal insert and the reinforcing ribs on the inner wall of the lower side edge, so that the connection reliability between the top cover and the chassis is ensured; furthermore, the limit of the hole diameter of the threaded hole on the metal insert can ensure perfect fit of the arc-shaped curved surface between the top cover and the chassis, and deformation is effectively avoided.
Drawings
FIG. 1 is a connecting and fixing structure between thin-wall plastic parts;
FIG. 2 is a schematic view of a partially separated structure of a chassis and a metal insert;
FIG. 3 is a schematic view of the vertical cross-section of the chassis;
fig. 4 is a schematic perspective view of a metal insert.
The following reference numerals are attached thereto in combination with the accompanying drawings:
100. A top cover; 110. an upper side; 200. a chassis; 210. a lower side; 211. reinforcing ribs; 300. a metal insert; 310. a main body portion; 311. a threaded hole; 320. and a locking part.
Detailed Description
One embodiment of the present utility model will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present utility model is not limited by the embodiment.
The utility model relates to a connecting and fixing structure between thin-wall plastic parts, which is shown in fig. 1 and 3, and comprises a top cover 100 and a bottom plate 200 which are connected in a butt joint way; wherein, the chassis 200 includes a lower side 210 extending upward, the top cover 100 includes an upper side 110 extending downward and sleeved outside the lower side 210, the upper side 110 and the lower side 210 are thin-walled plastic parts with wall thickness of 2.2mm-5.5mm, and the upper side 110 of the top cover 100 is connected with the lower side 210 of the chassis 200 by screw fastening, specifically: the lower side 210 of the chassis 200 is provided with a plurality of metal inserts 300 which are arranged along the mouth at intervals along the circumference in an integral injection molding way, the thickness of the metal inserts 300 is smaller than the wall thickness of the lower side 210 to ensure that the metal inserts 300 are completely arranged in the lower side 210, the metal inserts 300 comprise a main body part 310 and at least one locking part 320 arranged on the outer edge surface of the main body part 310, the combination between the metal inserts 300 and the chassis 200 can be effectively improved through the at least one locking part 320, and meanwhile, the middle part of the main body part 310 is provided with a threaded hole 311 matched with a screw; in this way, the trouble of additionally arranging a member on the chassis 200 is effectively avoided, and meanwhile, screws can be conveniently screwed into the threaded holes 311 of the metal insert 300 correspondingly after passing through the upper side 110, so that the connection strength between the top cover 100 and the chassis 200 is ensured.
In this embodiment, as shown in fig. 4, the cross-sectional shape of the main body portion 310 of the metal insert 300 is a hexagonal structure, and six locking portions 320 are correspondingly disposed at six vertex angles of the main body portion 310; in other embodiments, the cross-sectional shape of the main body 310 of the metal insert 300 may be circular, triangular, rectangular, pentagonal, or even polygonal with more than six sides, and the number of the locking portions 320 may be increased or decreased as needed.
In this embodiment, as shown in fig. 2, at least one reinforcing rib 211 is disposed at the position of the inner wall of the lower side 210 of the chassis 200 corresponding to the metal insert 300, and the reinforcing rib 211 is connected to the inner wall of the lower side 210 outside the metal insert 300, so that the reinforcing rib 211 can effectively strengthen the combination between the metal insert 300 and the chassis 200.
In this embodiment, the hole diameter of the threaded hole 311 on the metal insert 300 is M4-M6, so that the screw matched with the threaded hole 311 is effectively limited by the hole diameter of the threaded hole 311, so that perfect fit of the arc-shaped curved surface between the top cover 100 and the chassis 200 can be ensured, and deformation is effectively avoided.
Compared with the prior art, the utility model has simple and reasonable structure, is directly and integrally formed in the chassis through the metal insert, avoids the addition of additional components, and can facilitate the screw to pass through the top cover and be screwed into the metal insert of the chassis so as to facilitate the stable connection between the two; meanwhile, the bonding strength between the metal insert and the chassis can be improved through the locking part of the metal insert and the reinforcing ribs on the inner wall of the lower side edge, so that the connection reliability between the top cover and the chassis is ensured; furthermore, the limit of the hole diameter of the threaded hole on the metal insert can ensure perfect fit of the arc-shaped curved surface between the top cover and the chassis, and deformation is effectively avoided.
The above disclosure is merely an example of the present utility model, but the present utility model is not limited thereto, and any variations that can be considered by a person skilled in the art should fall within the protection scope of the present utility model.
Claims (5)
1. The utility model provides a connect fixed knot between thin wall plastic parts constructs, includes to the chassis and the top cap that link to each other, the chassis includes the lower side that upwards extends, the top cap includes downwardly extending and cup joints the outside last side of lower side, its characterized in that still includes a plurality of metal inserts of integrative injection moulding in the lower side and along the mouth of lower side along circumference interval arrangement, the wall thickness of lower side is 2.2mm-5.5mm, the thickness of metal insert is less than the wall thickness of lower side, metal insert includes main part and connects at least one locking portion on main part outer fringe face, the middle part of main part is provided with the screw hole, wears to establish in the metal insert of side screw in order to realize that the top cap links to each other with the chassis firmly down through the screw.
2. The connecting and fixing structure of thin-wall plastic parts according to claim 1, wherein at least one reinforcing rib is arranged on the inner wall of the lower side edge corresponding to the metal insert.
3. The connecting and fixing structure of thin-wall plastic parts according to claim 1, wherein the hole diameter of the threaded hole in the metal insert is M4-M6.
4. The connecting and fixing structure of thin-wall plastic parts according to claim 1, wherein the wall thickness of the upper side is 2.2mm-5.5mm.
5. The connecting and fixing structure between thin-walled plastic parts according to claim 1, wherein the cross-sectional shape of the main body portion of the metal insert is circular or triangular or rectangular or pentagonal or hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323335813.XU CN221233418U (en) | 2023-12-07 | 2023-12-07 | Connecting and fixing structure between thin-wall plastic parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323335813.XU CN221233418U (en) | 2023-12-07 | 2023-12-07 | Connecting and fixing structure between thin-wall plastic parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221233418U true CN221233418U (en) | 2024-06-28 |
Family
ID=91614147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323335813.XU Active CN221233418U (en) | 2023-12-07 | 2023-12-07 | Connecting and fixing structure between thin-wall plastic parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221233418U (en) |
-
2023
- 2023-12-07 CN CN202323335813.XU patent/CN221233418U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |