CN201475625U - Sheet metal with flanging hole - Google Patents
Sheet metal with flanging hole Download PDFInfo
- Publication number
- CN201475625U CN201475625U CN2009201944202U CN200920194420U CN201475625U CN 201475625 U CN201475625 U CN 201475625U CN 2009201944202 U CN2009201944202 U CN 2009201944202U CN 200920194420 U CN200920194420 U CN 200920194420U CN 201475625 U CN201475625 U CN 201475625U
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- Prior art keywords
- sheet metal
- metal part
- flange hole
- boss
- offers
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Abstract
The utility model relates to the technical field of the sheet metal, in particular to a sheet metal with a flanging hole. The sheet metal comprises a sheet metal body which is provided with a flanging hole. The position of the sheet metal, surrounding the flanging hole, is provided with a boss. In the utility model, the sheet metal can avoid deformation generated when screws are used for pre-tightening and can ensure the quality of an air conditioning product.
Description
Technical field:
The utility model relates to the sheet metal part technical field, relates in particular to a kind of sheet metal part that offers the flange hole that is used for air-conditioning.
Background technique:
In engineering is used, there are a lot of electronic products need on workpiece such as sheet metal part, process flange hole with certain size and requirement of strength.General with cylindrical punch pre-punched hole is processed then, the pre-punched hole skirt materials is occured bending and deformation and form the flange hole earlier at workpiece upper punch pre-punched hole.Because the flange hole can increase the area of contact between screw and the workpiece material effectively, thereby increase the pretightening force between screw and the workpiece, so the flange hole is widely used in the connection between the workpiece.
In the air-conditioning product, often a sheet metal part that offers the flange hole is connected with another sheet metal part by screw, between two-layer sheet metal part, be provided with flexible material (as rubber-plastic foamed thermal insulating material), because flexible material has compressibility, when using screw to connect two sheet metal parts, if sheet metal part insufficient strength, the pretightening force of screw will make sheet metal part produce distortion, influence the air-conditioning product quality.
The model utility content:
The purpose of this utility model is at the deficiencies in the prior art, and a kind of sheet metal part that offers the flange hole is provided, and this sheet metal part can effectively be avoided producing distortion when using screw to carry out pretension, guarantees the air-conditioning product quality.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of sheet metal part that offers the flange hole, and it comprises the sheet metal part body, and the sheet metal part body offers the flange hole, and described sheet metal part body forms boss in the position around the flange hole.
The flange homonymy in the concave surface of described boss and flange hole.
Ferry excessively between described flange hole and the boss is a horn mouth.
The transitional surface of described boss and sheet metal part body is a cambered surface.
The transitional surface of described boss and sheet metal part body is the inclined-plane.
The flange in described flange hole protrudes from described sheet metal part body.
The ratio of the minimum-value aperture d in described flange hole and the maximum outside diameter D of boss is d: D=1: 3.5.
The utility model beneficial effect is: a kind of sheet metal part that offers the flange hole described in the utility model, its sheet metal part body forms boss in the position around the flange hole, the utility model is applied to the fastening structure of the middle band of two sheet metal parts flexible material, be to be provided with flexible material between a kind of sheet metal part that offers the flange hole described in the utility model and another sheet metal part, screw passes two sheet metal parts and flexible material, and screw is threaded with the flange hole, when turning screw, the boss of sheet metal part will contact with flexible material earlier and the compressed flexible material, because boss has resiliently deformable preferably, so just can effectively avoid producing distortion, and guarantee the air-conditioning product quality because of the screw pretension makes sheet metal part.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a side view of the present utility model;
Fig. 3 is a sectional view of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
Embodiment one, as shown in Figure 1 to Figure 3, the utility model comprises sheet metal part body 1, sheet metal part body 1 offers flange hole 2, described sheet metal part body 1 forms boss 3 in the position around flange hole 2, the concave surface 32 of boss 3 and flange 21 homonymies in flange hole 2, and the ferry 22 excessively between flange hole 2 and the boss 3 is a horn mouth, boss 3 is a cambered surface with the transitional surface 33 of sheet metal part body 1, and the flange 21 in flange hole 2 protrudes from described sheet metal part body 1; Adopt this sheet metal part that offers flange hole 2 of said structure, be provided with flexible material (as rubber-plastic foamed thermal insulating material) between itself and another sheet metal part, and the mode that adopts screw to pass two sheet metal parts and flexible material is connected, and wherein screw is threaded with flange hole 2.When turning screw, the boss 3 of sheet metal part will contact with flexible material earlier and the compressed flexible material, because boss 3 has resiliently deformable preferably, boss 3 can not cause the distortion of sheet metal part body 1 when embedding flexible material, so just can effectively avoid taking place producing the situation of distortion, guarantee the air-conditioning product quality because of the screw pretension makes sheet metal part.
Wherein, the ferry 22 excessively between flange hole 2 and the boss 3 is bell-mouthed structure, can make screw enter exactly in the flange hole 2; Boss 3 is the structure of cambered surface with the transitional surface 33 of sheet metal part body 1, can strengthen the elastic deformability of boss 3, and can make boss 3 more easily embed flexible material; The flange 21 in flange hole 2 protrudes from the structure of described sheet metal part body 1, makes screw or nut more securely to be connected with the sheet metal part friction.
The ratio of the minimum-value aperture d in described flange hole 2 and the maximum outside diameter D of boss 3 can be d: D=1: 3～1: 4, in this proportion, can strengthen the elastic deformability of boss 3 better, and as optimal way, the d of ratio described in the present embodiment: D=1: 3.5.
Embodiment two, compare with embodiment one, and its difference is that the described boss 3 and the transitional surface 33 of sheet metal part body 1 are the inclined-plane, can strengthen the elastic deformability of boss 3 equally, makes boss 3 more easily embed flexible material.
In sum, owing to also form boss 3 structures on the architecture basics in flange hole 2, the utility model can effectively be avoided producing distortion because of the screw pretension makes sheet metal part, and guarantees the air-conditioning product quality.A kind of sheet metal part structure that offers flange hole 2 described in the utility model can be widely used in the sheet metal part processing and installation of various electronic products.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (7)
1. sheet metal part that offers the flange hole, it comprises sheet metal part body (1), sheet metal part body (1) offers flange hole (2), it is characterized in that: described sheet metal part body (1) forms boss (3) in the position around flange hole (2).
2. a kind of sheet metal part that offers the flange hole according to claim 1 is characterized in that: flange (21) homonymy in the concave surface (32) of described boss (3) and flange hole (2).
3. a kind of sheet metal part that offers the flange hole according to claim 2 is characterized in that: ferry (22) excessively between described flange hole (2) and the boss (3) are horn mouth.
4. a kind of sheet metal part that offers the flange hole according to claim 3 is characterized in that: described boss (3) is a cambered surface with the transitional surface (33) of sheet metal part body (1).
5. a kind of sheet metal part that offers the flange hole according to claim 3 is characterized in that: described boss (3) is the inclined-plane with the transitional surface (33) of sheet metal part body (1).
6. according to each described a kind of sheet metal part that offers the flange hole of claim 2 to 5, it is characterized in that: the flange (21) in described flange hole (2) protrudes from described sheet metal part body (1).
7. a kind of sheet metal part that offers the flange hole according to claim 6 is characterized in that: the ratio of the maximum outside diameter D of the minimum-value aperture d in described flange hole (2) and boss (3) is d: D=1: 3.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201944202U CN201475625U (en) | 2009-09-09 | 2009-09-09 | Sheet metal with flanging hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201944202U CN201475625U (en) | 2009-09-09 | 2009-09-09 | Sheet metal with flanging hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475625U true CN201475625U (en) | 2010-05-19 |
Family
ID=42411875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201944202U Expired - Fee Related CN201475625U (en) | 2009-09-09 | 2009-09-09 | Sheet metal with flanging hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707468A (en) * | 2012-06-21 | 2012-10-03 | 深圳市华星光电技术有限公司 | Sheet metal part for liquid crystal display device, method for producing sheet metal part and liquid crystal display device |
| EP3933276A1 (en) | 2020-06-29 | 2022-01-05 | Arçelik Anonim Sirketi | A household appliance comprising a uv lamp |
-
2009
- 2009-09-09 CN CN2009201944202U patent/CN201475625U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707468A (en) * | 2012-06-21 | 2012-10-03 | 深圳市华星光电技术有限公司 | Sheet metal part for liquid crystal display device, method for producing sheet metal part and liquid crystal display device |
| WO2013189090A1 (en) * | 2012-06-21 | 2013-12-27 | 深圳市华星光电技术有限公司 | Sheet metal part for liquid crystal display device, manufacturing method, and liquid crystal display device |
| EP3933276A1 (en) | 2020-06-29 | 2022-01-05 | Arçelik Anonim Sirketi | A household appliance comprising a uv lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20130909 |