CN215805658U - Sheet metal part screw hole structure and household appliance - Google Patents
Sheet metal part screw hole structure and household appliance Download PDFInfo
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- CN215805658U CN215805658U CN202122025109.9U CN202122025109U CN215805658U CN 215805658 U CN215805658 U CN 215805658U CN 202122025109 U CN202122025109 U CN 202122025109U CN 215805658 U CN215805658 U CN 215805658U
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- screw hole
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- metal part
- hole structure
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Abstract
The utility model discloses a sheet metal part screw hole structure and a household appliance, wherein the sheet metal part screw hole structure comprises a sheet metal part, a first protruding part and a second protruding part. The sheet metal part is provided with a first surface and a second surface which are oppositely arranged; the first bump is formed by the first surface being recessed toward the second surface such that the first bump has a bottom wall; the second bulge part is positioned on the bottom wall of the first bulge part and is formed by protruding the bottom wall towards the direction of the first surface; the second bulge is provided with a top wall far away from the bottom wall, and a screw hole is formed in the top wall. According to the technical scheme, the sheet metal part is processed only once, and the problem that the screw hole is easy to turn over can be solved.
Description
Technical Field
The utility model relates to the technical field of sheet metal machining, in particular to a sheet metal part screw hole structure and a household appliance.
Background
At present, the structural members of the air conditioner are connected with each other and are usually fixed by screws, so that the punching of screw holes on sheet metal parts is a commonly used structural form at present. However, when the screw hole is punched on the sheet metal part, the turned edge is easily pulled over after the screw is punched, so that the screw slides out of teeth, and the connection is not reliable; or, the nut is riveted again after the screw hole is punched, so that the problem that the screw hole is easy to turn over is solved, but secondary processing is needed in the scheme, and the processing efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a screw hole structure of a sheet metal part, which can avoid the problem that a screw hole is easy to turn over by only processing the sheet metal part once.
In order to achieve the purpose, the sheet metal part screw hole structure provided by the utility model comprises a sheet metal part, a first protruding part and a second protruding part. The sheet metal part is provided with a first surface and a second surface which are oppositely arranged; the first bump is formed by the first surface being recessed toward the second surface such that the first bump has a bottom wall; the second bulge part is positioned on the bottom wall of the first bulge part and is formed by protruding the bottom wall towards the direction of the first surface; the second bulge is provided with a top wall far away from the bottom wall, and a screw hole is formed in the top wall.
Optionally, the first raised portion further includes a first side wall, the first side wall is connected with the bottom wall, the first side wall is arranged at an obtuse angle with the bottom wall, and the peripheral wall of the first side wall is arranged at an obtuse angle with the second surface.
Optionally, the periphery of the screw hole is formed with a flange extending from the screw hole towards the bottom wall.
Optionally, the joint of the flange and the top wall is designed to be chamfered.
Optionally, the second raised portion further includes a second side wall, the second side wall is connected to the top wall and the bottom wall of the first raised portion, the second side wall and the bottom wall form an obtuse angle, and the second side wall and the top wall form an obtuse angle.
Optionally, the top wall of the second raised portion is flush with the first surface of the sheet metal part.
Optionally, the thickness of the sheet metal part is not less than 0.3mm and not more than 0.8 mm.
Optionally, the depth of the first bump is not less than 2mm, and not more than 6 mm.
Optionally, a distance between the first sidewall and the second sidewall is not less than 3mm and not more than 13 mm.
Optionally, the distance from the center of the screw hole to the second side wall is not less than 5mm and not more than 15 mm.
The utility model further provides a household appliance which comprises a sheet metal part, a first protruding part and a second protruding part. The sheet metal part is provided with a first surface and a second surface which are oppositely arranged; the first bump is formed by the first surface being recessed toward the second surface such that the first bump has a bottom wall; the second bulge part is positioned on the bottom wall of the first bulge part and is formed by protruding the bottom wall towards the direction of the first surface; the second bulge is provided with a top wall far away from the bottom wall, and a screw hole is formed in the top wall.
Optionally, the household appliance is an air conditioner.
According to the technical scheme, the first bulge part and the second bulge part are arranged on the sheet metal part, the extending directions of the first bulge part and the second bulge part are opposite, the screw hole is formed in the top wall of the second bulge part, the annular groove is formed between the first bulge part and the second bulge part, and the annular groove has a reinforcing effect on the structure around the screw hole of the second bulge part, so that the structural strength around the screw hole on the sheet metal part is high, and when the screw is screwed in the screw hole, the periphery of the screw hole cannot be easily pulled up to form a convex hull. Traditional sheet metal component screw hole structure punches the screw hole on the sheet metal component, beats the back at the screw and easily draws the screw and turns over, leads to the screw smooth tooth, connects unreliable, if select other schemes, for example riveting nut behind the punching press screw hole, this kind of scheme is more reliable for the screw hole of aforementioned scheme interlinkage structure, but this scheme processing is complicated, and the cost is higher, and needs secondary operation. According to the technical scheme, the nail hole structure can be formed at one time without being processed for multiple times, and the strength of the screw hole structure is further enhanced, so that a convex hull cannot be pulled up around the screw hole when the screw is screwed down in the screw hole, and meanwhile, the screw hole structure reduces processing procedures, is not complex to process and can be applied in a large range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a screw hole structure of a sheet metal part according to the present invention;
FIG. 2 is a cross-sectional view of one embodiment of a screw hole structure of a sheet metal part according to the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
200 | Second raised |
| 11 | |
210 | |
| 12 | |
220 | |
| 100 | |
230 | Flanging |
| 110 | |
240 | Second side wall |
| 120 | |
250 | Chamfer/chamfer angle |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an embodiment of a sheet metal part screw hole structure, which can be applied to household appliances and is used for connecting and fixing two sheet metal parts, so that the two sheet metal parts are firmly connected and are not easy to slip after being connected by screws, and the sheet metal part screw hole structure can be used as a dehumidifier, a humidifier, an air conditioner, a refrigerator and the like as the types of the household appliances.
Referring to fig. 1 and 2, in an embodiment of the present invention, the sheet metal part screw hole structure includes a sheet metal part 10, a first raised portion 100 and a second raised portion 200. The sheet metal part 10 is provided with a first surface 11 and a second surface 12 which are oppositely arranged; the first bump 100 is formed by the first surface 11 being depressed toward the second surface 12, the first bump 100 having a bottom wall 110 away from the second surface 12; the second raised part 200 is located on the bottom wall 110 of the first raised part 100, and the second raised part 200 is formed by the bottom wall 110 protruding towards the first surface 11; the second bump portion 200 has a top wall 210 remote from the bottom wall 110 of the first bump portion 100, and the top wall 210 is provided with a screw hole 220.
Specifically, the shape of the first bump 100 may be a square, a rectangle, a circle, a triangle, a diamond, or any other polygon, and the shape of the second bump 200 may be the same as the shape of the first bump 100, or the shape of the second bump 200 may be different from the shape of the first bump 100, specifically in the present embodiment, the shape of the first bump 100 is set to be a circle, and the shapes of the second bump 200 and the first bump 100 are the same. From first uplift portion 100 to second uplift portion 200 direction, first uplift portion 100 forms circular heavy groove, second uplift portion 200 is located circular heavy inslot, the tank bottom of circular heavy groove is the diapire 110 of first uplift portion 100, second uplift portion 200 sets up on the diapire 110 of first uplift portion 100, screw 220 sets up on the roof 210 of second uplift portion 200, this roof 210 sets up to circular, screw 220 sets up in the central authorities of roof 210, screw 220 and roof 210 coaxial setting. In this embodiment, an annular groove is formed between the first raised part 100 and the second raised part 200, and the annular groove can reinforce the structure around the second raised part 200, so that when the screw is screwed in the screw hole 220, the periphery of the screw hole 220 is not pulled up by a convex hull.
According to the technical scheme, the first bulge part 100 and the second bulge part 200 are arranged on the sheet metal part 10, the extending directions of the first bulge part 100 and the second bulge part 200 are opposite, the screw hole 220 is formed in the top wall 210 of the second bulge part 200, an annular groove is formed between the first bulge part 100 and the second bulge part 200, the annular groove has a reinforcing effect on the structure around the screw hole 220 of the second bulge part 200, the structural strength around the screw hole 220 on the sheet metal part 10 is high, and when a screw is screwed in the screw hole 220, the periphery of the screw hole 220 cannot be easily pulled up to form a convex bag. Traditional sheet metal component screw hole structure punches the screw hole on the sheet metal component, beats the back at the screw and easily draws the screw and turns over, leads to the screw smooth tooth, connects unreliable, if select other schemes, for example riveting nut behind the punching press screw hole, this kind of scheme is more reliable for the screw hole of aforementioned scheme interlinkage structure, but this scheme processing is complicated, and the cost is higher, and needs secondary operation. According to the technical scheme, the nail hole structure can be formed at one time without being processed for multiple times, and the strength of the screw hole structure is further enhanced, so that a convex hull cannot be pulled up around the screw hole 220 when the screw is screwed in the screw hole 220, and meanwhile, the screw hole structure reduces processing procedures, is not complex to process and can be applied in a large range.
Referring to fig. 2 and 3, in an embodiment, the first raised portion 100 further includes a first sidewall 120, the first sidewall 120 is connected to the bottom wall 110, the first sidewall 120 forms an obtuse angle with the bottom wall 110, and an outer peripheral wall of the first sidewall 120 forms an obtuse angle with the second surface 12.
Specifically, the bottom wall 110 is disposed in a circular shape, and the first sidewall 120 is connected to a circumference of the bottom wall 110. In the process of stamping forming the first raised part 100, the angle of the joint of the first side wall 120 and the bottom wall 110 may be set to be a right angle, or set to be other angles, and since the angle of the joint of the first side wall 120 and the bottom wall 110 is set to be a right angle, the operation process of the die is more complicated in the process of stamping, and the efficiency is low, so that in order to facilitate the stamping process, the joint between the first side wall 120 and the bottom wall 110 is set to be an obtuse angle in the process of stamping forming. Since the bottom wall 110 is disposed parallel to the second surface 12 after punching, the included angle between the first side wall 120 and the bottom wall 110 is equal to the included angle between the outer peripheral wall of the first side wall 120 and the second surface 12.
Further, a flange 230 is formed around the screw hole 220, and the flange 230 extends from the screw hole 220 toward the bottom wall 110. Specifically, the flange 230 is connected with the circumferential edge of the screw hole 220, and the internal thread is arranged in the flange 230, so that the number of teeth of two sheet metal parts which are engaged after the screw is screwed into the screw hole 220 during connection can be further increased, the screw hole cannot be easily pulled up to form a soil packet, the problem of tooth slipping occurs, and the connection between the two sheet metal parts is unstable. Meanwhile, the flange 230 is arranged on the periphery of the screw hole 220, so that the strength around the screw hole 220 can be further enhanced, and the screw hole 220 cannot be easily pulled up to form a convex hull in the connection process of the two sheet metal parts.
It is considered that when two sheet metal parts are connected and fixed through a screw, a user can rotate the screw in the screw hole 220 to screw the screw, and in the case that the user applies too much force or in other cases, the strength around the screw hole 220 is not enough, and the tensile strength of the screw around the screw hole 220 may be too strong, so that the screw gradually pulls up around the screw hole 220 under the action of strong tensile force, and finally the screw hole 220 is pulled up to form a convex hull or the flange 230 is pulled over, so that the connection between the two sheet metal parts is unstable due to the sliding teeth. In view of this, to solve this problem, a chamfer 250 may optionally be provided at the junction of the flange 230 and the top wall 210. Because the screw is at the in-process of screwing up, the screw can pull turn-ups 230 towards the screw direction, and chamfer 250 between turn-ups 230 and roof 210 can play the effect of resisting tensile power this moment to increase the intensity of turn-ups hole, make around the screw 220 can not pulled up a convex closure easily and turn-ups 230 is difficult to be pulled over by the screw, thereby the problem of smooth tooth appears.
It should be noted that the chamfer 250 at the connection of the flange 230 and the top wall 210 is set to be a chamfer 250, and the range of the chamfer 250 is between C0.5 and C2. Specifically, when the range of the chamfer angle 250 is less than C0.5, the length of the chamfer angle 250 is too small, so that the screw hole structure cannot be reinforced well; when the scope of chamfer angle 250 was greater than C2, be restricted to the thickness of sheet metal component, screw 220 and turn-ups 230 internal thread number of teeth can corresponding reduction this moment, thereby the screw is connected because the reduction of number of teeth is unstable with screw hole structure, therefore the scope of chamfer angle should set up between C0.5 ~ C2, avoids producing above-mentioned problem.
Meanwhile, as the sheet metal part screw hole structure is formed in one-step stamping mode, when the chamfer 250 is punched, a part of material at the joint of the original flange 230 and the screw hole 220 can be extruded in the extending direction of the flange 230, so that the height of the flange 230 is increased, the length of the meshing section of the screw and the flange 230 is increased, and the stability of the two sheet metal parts when the two sheet metal parts are connected through the screw is further improved.
Referring to fig. 2 and 3, in an embodiment, the second raised portion 200 further includes a second side wall 240, the second side wall 240 is connected to the top wall 210 and the bottom wall 110 of the first raised portion 100, the second side wall 240 and the bottom wall 110 form an obtuse angle, and the second side wall 240 and the top wall 210 form an obtuse angle.
Specifically, the second bump 200, when protruded from the bottom wall 110 toward the first surface 11, forms a second sidewall 240 and a top wall 210 at the end of the protrusion, the second sidewall 240 connecting the bottom wall 110 of the first bump 100 and the top wall 210 of the second bump 200. In the process of press forming the second raised portion 200, the angle of the junction between the second side wall 240 and the top wall 210 may be set to a right angle, or may be set to another angle, and since the operation process of the press process is complicated when the angle of the junction between the second side wall 240 and the top wall 210 is set to a right angle, and it is inconvenient to improve the efficiency, the junction between the second side wall 240 and the top wall 210 is set to an obtuse angle in the press forming process, in order to facilitate the press processing. Since the top wall 210 is disposed parallel to the bottom wall 110 after punching, the included angle between the second side wall 240 and the bottom wall 110 is equal to the included angle between the second side wall 240 and the top wall 210.
Referring to fig. 2, in one embodiment, the top wall 210 of the second raised portion 200 is flush with the first surface 11 of the sheet metal member 10. Specifically, when the top wall 210 of the second raised part 200 is lower than the first surface 11 of the sheet metal part 10, the two sheet metal parts are connected and fixed by screws, so that the height of the screws needs to be increased to meet the requirement of the distance from one sheet metal part to the screw hole structure of the other sheet metal part during the connection between the two sheet metal parts, and the production cost is further increased, and vice versa. Therefore, in order to facilitate the connection between the two sheet metal parts and to facilitate the machining of the sheet metal part screw hole structure, the top wall 210 of the second bulging portion 200 is arranged flush with the first surface 11 of the sheet metal part 10. Of course, in other embodiments, the top wall 210 of the second raised part 200 may be higher than the first surface 11 of the sheet metal member 10, or the top wall 210 of the second raised part 200 may be lower than the first surface 11 of the sheet metal member 10, which is not specifically stated herein.
Referring to fig. 1 to 3, in an embodiment, the thickness of the sheet metal part 10 is not less than 0.3mm and not more than 0.8 mm. Specifically, when the thickness of the sheet metal part 10 is thin and less than 0.3mm, the number of turns of the thread in the punching rear screw hole 220 is small and the length of the turned edge 230 is limited by the thickness of the sheet metal part 10, and the connection effect is not good when the screw is fixedly connected with the screw hole structure of the sheet metal part, so that the connection between the two sheet metal parts is unstable and the problem of tooth slipping is easily caused. When the thickness of sheet metal component 10 is thick and is greater than 0.8mm, need not to increase turn-ups 230 behind the punching press screw 220 on sheet metal component 10, the screw thread number of turns of self just can cooperate two sheet metal components of fixed connection with the screw in the punching press back screw 220, and is difficult for causing the circumstances such as smooth tooth. Therefore, when the thickness of the sheet metal part 10 is between 0.3mm and 0.8mm, the flange 230 can be formed on the circumference of the screw hole 220 after the sheet metal part 10 is punched, so that the effect is good and the teeth are not easy to slip when the two sheet metal parts are connected through the screw.
Referring to fig. 1 to 3, in an embodiment, the depth of the first bump 100 is not less than 2mm and not more than 6 mm. Specifically, if the depth of the first bump portion 100 is less than 2mm, the first bump portion 100 does not provide a good reinforcement around the screw hole 220; if the depth of the first raised part 100 is greater than 6mm, the depth of the first raised part 100 is too deep, so that the first raised part does not reinforce the periphery of the screw hole 220, and simultaneously occupies an excessive space, which affects the assembly of the sheet metal part 10 with other parts.
Referring to fig. 1 to 3, in an embodiment, the distance between the first sidewall 120 and the second sidewall 240 is not less than 3mm and not more than 13 mm. Specifically, when the interval between the first sidewall 120 and the second sidewall 240 is less than 3mm, the width of the annular groove is too narrow to reinforce the structure around the screw hole 220, and likewise, when the interval between the first sidewall 120 and the second sidewall 240 is greater than 13mm, the width of the annular groove is too wide to reinforce the structure around the screw hole 220.
Referring to fig. 1 to 3, in an embodiment, a distance from a center of the screw hole 220 to the second sidewall is not less than 5mm and not more than 15 mm. Specifically, if the distance from the center of the screw hole 220 to the second side wall is less than 5mm, the size of the screw hole 220 is fixed, and the size of the top wall 210 of the second raised part 200 will be reduced accordingly, which affects the strength around the screw hole 220; if the distance from the center of the screw hole 220 to the second sidewall is greater than 15mm, the annular groove does not reinforce the structure around the screw hole 220, and thus, the distance from the center of the screw hole 220 to the second sidewall is set to be between 5mm and 15 mm.
The utility model further provides a household appliance which comprises the sheet metal part screw hole structure. The specific structure of the sheet metal part screw hole structure refers to the above embodiments, and as the household appliance adopts all the technical schemes of all the above embodiments, the household appliance at least has all the beneficial effects brought by the technical schemes of the above embodiments, and is not repeated here. Among them, a specific type of the home appliance is an air conditioner.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. The utility model provides a sheet metal component screw hole structure which characterized in that includes:
the sheet metal part is provided with a first surface and a second surface which are oppositely arranged;
a first bump formed by the first surface being recessed toward the second surface such that the first bump has a bottom wall; and
a second raised part located on a bottom wall of the first raised part and formed by the bottom wall being raised in a direction toward the first surface; the second bulge is provided with a top wall far away from the bottom wall, and a screw hole is formed in the top wall.
2. The sheet metal part screw hole structure of claim 1, wherein the first raised portion further comprises a first side wall, the first side wall is connected with the bottom wall, the first side wall is arranged at an obtuse angle with the bottom wall, and the outer peripheral wall of the first side wall is arranged at an obtuse angle with the second surface.
3. The sheet metal part screw hole structure of claim 1, wherein a flange is formed around the screw hole, the flange extending from the screw hole in a direction toward the bottom wall.
4. The sheet metal part screw hole structure of claim 3, wherein the joint of the turned-over edge and the top wall is in a chamfered design.
5. The sheet metal part screw hole structure according to any one of claims 1 to 4, wherein the second raised portion further comprises a second side wall, the second side wall is connected with the top wall and the bottom wall of the first raised portion, the second side wall is arranged at an obtuse angle with the bottom wall, and the second side wall is arranged at an obtuse angle with the top wall.
6. The sheet metal part screw hole structure of any one of claims 1 to 4, wherein a top wall of the second raised portion is flush with the first surface of the sheet metal part.
7. The sheet metal part screw hole structure of any one of claims 1 to 4, wherein the thickness of the sheet metal part is not less than 0.3mm and not more than 0.8 mm.
8. The sheet metal part screw hole structure of any one of claims 1 to 4, wherein the depth of the first bulge is not less than 2mm and not more than 6 mm.
9. The sheet metal part screw hole structure of any one of claims 1 to 4, wherein a spacing between the first side wall and the second side wall is not less than 3mm and not more than 13 mm.
10. The sheet metal part screw hole structure of any one of claims 1 to 4, wherein a center of the screw hole is spaced from the second side wall by a distance of not less than 5mm and not more than 15 mm.
11. A household appliance, characterized in that the household appliance comprises a sheet metal part screw hole structure according to any one of claims 1 to 10.
12. The household appliance of claim 11, wherein the household appliance is an air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122025109.9U CN215805658U (en) | 2021-08-25 | 2021-08-25 | Sheet metal part screw hole structure and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122025109.9U CN215805658U (en) | 2021-08-25 | 2021-08-25 | Sheet metal part screw hole structure and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215805658U true CN215805658U (en) | 2022-02-11 |
Family
ID=80151596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122025109.9U Active CN215805658U (en) | 2021-08-25 | 2021-08-25 | Sheet metal part screw hole structure and household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215805658U (en) |
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2021
- 2021-08-25 CN CN202122025109.9U patent/CN215805658U/en active Active
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