CN211343658U - Special double-screw bolt of keyboard bottom plate riveting - Google Patents
Special double-screw bolt of keyboard bottom plate riveting Download PDFInfo
- Publication number
- CN211343658U CN211343658U CN201922381299.0U CN201922381299U CN211343658U CN 211343658 U CN211343658 U CN 211343658U CN 201922381299 U CN201922381299 U CN 201922381299U CN 211343658 U CN211343658 U CN 211343658U
- Authority
- CN
- China
- Prior art keywords
- stud
- end cover
- riveting
- keyboard
- section
- 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
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model discloses a special stud for riveting a keyboard base plate, which is specially used for riveting a bottom hole of an A5052 aluminum alloy keyboard base plate with the thickness of 0.3mm, and comprises a main body, wherein the main body is provided with a threaded hole, and the outer diameter of the main body is 4.05-4.1 mm; the end cover is arranged at one end of the main body, and an annular groove is formed in the position where the end cover is connected with the main body; the thickness of the end cover is 0.2mm, the outer edge of the end cover is provided with 16-18 flower teeth along the circumferential direction, the radius of a circle where the root of each flower tooth is located is 4.1mm, the outer diameter of the end cover is 4.55-4.65mm, the width of each annular groove is 0.12-0.18mm, and the depth of each annular groove is 0.12-0.18 mm. The utility model discloses to the keyboard floor of concrete thickness and material, through the improvement to end cover and recess, when making the pressure rivet, the end cover is pressed the material and is mainly got into the ring channel, has avoided the bottom hole of the material extrusion keyboard floor of deformation, and then has prevented bottom hole edge deformation effectively.
Description
Technical Field
The utility model relates to a computer keyboard part field, in particular to keyboard bottom plate riveting special purpose double-screw bolt.
Background
The keyboard bottom plate is formed by punching a stainless steel plate, holes corresponding to keyboard keys are punched, and bottom holes used for riveting studs are punched, wherein the studs are used for installing the keyboard bottom plate into a computer keyboard. The diameter of the stud is designed by a computer keyboard manufacturer, once the diameter of the stud is determined, the bottom hole of the keyboard bottom plate is also determined, and the OEM manufacturer as the keyboard bottom plate has little room for modification.
In the prior art, a stud with a spline tooth is riveted to a keyboard base plate by a press riveting process. According to the conventional experience or standard design of the stud of the technical personnel in the field, the riveting position of the stud after riveting is warped and deformed often when the riveting operation is carried out on the bottom hole of the A5052 aluminum alloy keyboard base plate with the thickness of 0.3mm, so that the riveting stud suitable for the A5052 aluminum alloy keyboard base plate with the thickness of 0.3mm needs to be developed.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned defect of prior art, the utility model provides a special double-screw bolt of keyboard floor riveting is exclusively used in and is riveted into in the bottom hole of A5052 aluminum alloy keyboard floor that thickness is 0.3mm, and it includes:
a main body, the main body is provided with a threaded hole, and the outer diameter of the main body is 4.05-4.1 mm; and
the end cover is arranged at one end of the main body, and an annular groove is formed in the position where the end cover is connected with the main body;
the thickness of the end cover is 0.2mm, the outer edge of the end cover is provided with 16-18 flower teeth along the circumferential direction, the radius of a circle where the root of each flower tooth is located is 4.1mm, the outer diameter of the end cover is 4.55-4.65mm, the width of each annular groove is 0.12-0.18mm, and the depth of each annular groove is 0.12-0.18 mm.
In certain embodiments, the body includes a first section and a second section connected to the first section, wherein the first section has a diameter greater than a diameter of the second section, and the first section is connected to the end cap.
In certain embodiments, the second section has an outer diameter of 3.07 to 3.13 mm.
In some embodiments, the length of the stud is 2.12-2.22 mm.
In some embodiments, a threaded bore extends through the stud.
In some embodiments, the stud is made of free-cutting steel 1215.
In certain embodiments, the stud surface is nickel plated.
The utility model has the advantages that: aiming at the keyboard base plate with specific thickness and material, the end cover and the groove are improved, so that when the end cover is riveted, the end cover pressing material mainly enters the annular groove, the deformed material is prevented from extruding the bottom hole of the keyboard base plate, and the edge deformation of the bottom hole is effectively reduced.
Drawings
Fig. 1 is a front view of a stud bolt dedicated for riveting a keyboard base plate according to an embodiment of the present invention.
FIG. 2 is an end view of the keyboard backplane riveting specialized stud shown in FIG. 1;
fig. 3 is a schematic drawing showing the dimension of the special riveting stud for the keyboard substrate shown in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An object of the utility model is to provide an external diameter is 4.05-4.1 mm's double-screw bolt, and bottom hole warpage is very little or even the visual warpage that can not see when riveting this double-screw bolt into the bottom hole of A5052 aluminum alloy keyboard bottom plate that thickness is 0.3 mm. For studs with an outer diameter of 4.05-4.1mm, the diameter of the bottom hole of the keyboard floor is typically designed to be 4-4.05 mm.
The inventor researches and discovers that the main reason of the A5052 aluminum alloy keyboard base plate with the thickness of 0.3mm in the keyboard base plate is that the keyboard base plate is plastically deformed in the riveting process, so that the material of the deformed part is extruded around the bottom hole, and the periphery of the bottom hole is tilted. The present disclosure provides a solution, please refer to fig. 1, which provides a stud comprising a body 1 and an end cap 3. The main body 1 is provided with a threaded hole 2, and the outer diameter of the main body 1 is 4.05-4.1 mm. In the embodiment shown in fig. 1, the body 1 comprises a first section 6 and a second section 7 connected to the first section 6, wherein the first section 6 has an outer diameter larger than the outer diameter of the second section 7, and the first section 6 is connected to the end cap 3. Referring to fig. 3, the outer diameter of the first section 6 is 4.05-4.1mm, that is, the outer diameter of the main body 1, and the outer diameter of the second section 7 is 3.07-3.13 mm.
Referring to fig. 1 and 3, the end cap 3 is disposed at one end of the main body 1, and an annular groove 4 is formed at a position where the end cap 3 is connected to the main body 1. The annular groove 4 is a continuous groove formed around the circumference of the main body 1, the axial width of the annular groove 4 is 0.12-0.18mm, and the radial depth of the annular groove 4 is 0.12-0.18 mm.
Referring to fig. 2, the edge of the end cap 3 is provided with 16-18 spline teeth 5 along the circumferential direction, the radius of the circle where the root of the spline teeth 5 is located is 4.1mm, and the outer diameter of the end cap 3 is 4.55-4.65 mm. Wherein the outer diameter of the end cap 3 is the diameter of the circle formed by the tips of the spline teeth 5. The teeth 5 may be triangular. The threaded hole 2 runs through the entire stud, so the center of the end cap 3 also has a hole.
Further, the length of the stud is 2.12-2.22 mm. The stud is made of free-cutting steel 1215, the surface of which is plated with nickel.
During the riveting process, the end cover 3 is pressed into the material of the bottom hole edge, the flower teeth 5 are firmly embedded into the bottom hole edge, and the extruded material flows into the annular groove 4, so that the stud is firmly riveted. The stud disclosed by the invention has the unilateral swaging width of 0.25-0.325 mm. For the A5052 aluminum alloy keyboard base plate with the thickness of 0.3mm, redundant materials generated by end cover pressing mainly enter the annular groove 4, the situation that deformed materials extrude a bottom hole of the keyboard base plate is avoided, and then the warping deformation of the edge of the bottom hole is effectively reduced.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (7)
1. The utility model provides a special double-screw bolt of keyboard floor riveting, is exclusively used in the bottom hole of riveting into the A5052 aluminum alloy keyboard floor that thickness is 0.3mm, its characterized in that includes:
a body having a threaded bore, the body having an outer diameter of 4.05-4.1 mm; and
the end cover is arranged at one end of the main body, and an annular groove is formed in the position where the end cover is connected with the main body;
the thickness of the end cover is 0.2mm, the outer edge of the end cover is provided with spline teeth along the circumferential direction, the number of the spline teeth is 16-18, the radius of a circle where the root of the spline teeth is located is 4.1mm, the outer diameter of the end cover is 4.55-4.65mm, the width of the annular groove is 0.12-0.18mm, and the depth of the annular groove is 0.12-0.18 mm.
2. The keyboard floor riveting stud of claim 1, wherein the body comprises a first section and a second section connected to the first section, wherein the first section has a diameter greater than a diameter of the second section, the first section being connected to the end cap.
3. The stud dedicated for riveting keyboard floor according to claim 2, wherein the outer diameter of the second section is 3.07-3.13 mm.
4. The stud special for riveting of keyboard floor according to claim 2, wherein the length of the stud is 2.12-2.22 mm.
5. The stud dedicated for keyboard floor riveting according to claim 1, wherein the threaded hole passes through the stud.
6. The stud special for riveting the keyboard floor according to claim 1, wherein the stud is made of free-cutting steel 1215.
7. The keyboard floor riveting dedicated stud according to claim 1, wherein the stud surface is nickel plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381299.0U CN211343658U (en) | 2019-12-26 | 2019-12-26 | Special double-screw bolt of keyboard bottom plate riveting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381299.0U CN211343658U (en) | 2019-12-26 | 2019-12-26 | Special double-screw bolt of keyboard bottom plate riveting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343658U true CN211343658U (en) | 2020-08-25 |
Family
ID=72129161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922381299.0U Active CN211343658U (en) | 2019-12-26 | 2019-12-26 | Special double-screw bolt of keyboard bottom plate riveting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343658U (en) |
-
2019
- 2019-12-26 CN CN201922381299.0U patent/CN211343658U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101474477B1 (en) | Punch rivet and die | |
| CN203702802U (en) | Self-punching fastener for welding of resistive element and component composite structure containing at least one fastener | |
| KR20130011986A (en) | A functional element having features providing security against rotation and also a component assembly consisting of the functional element and a sheet metal part | |
| US8096743B2 (en) | Press-in element for pressing into a non-pierced or pierced component and also method for the manufacture of the press-in element | |
| CN1200688A (en) | Method for inserting fastener element, bolt element, riveting die and component assembly | |
| CN1193082A (en) | Element, method of attaching element to plate-like component, assembly and die button | |
| US6527490B1 (en) | Punching, stamping rivet | |
| US9630232B2 (en) | Punch of blanking die including punch and die | |
| JP2012149766A (en) | Functional element, component assembly, and method for manufacturing functional element | |
| CN211343658U (en) | Special double-screw bolt of keyboard bottom plate riveting | |
| US20130205576A1 (en) | Joining method and a punching, stamping rivet | |
| US20180058486A1 (en) | Fastener for Thin-Sheet Materials | |
| KR101867186B1 (en) | The material thickness correction method of process press for shock absorber seal manufacturing and mold | |
| US7384241B2 (en) | Fan with ring and method of producing the same | |
| JP2006308023A (en) | Boss member and manufacturing method thereof | |
| US20160151825A1 (en) | Die, joining tool and die production method | |
| JP3834054B1 (en) | Caulking fixing support pins and flat display panel backplates with the same | |
| US20030175074A1 (en) | Method of attaching a pin-like element, a component assembly and a centering pin | |
| EP3976289B1 (en) | Extrusion forming method and forming apparatus for manufacturing self-clinching rivet | |
| CN112756485A (en) | Mold gland and mold assembly using same | |
| US11504894B2 (en) | Concordant step register | |
| CN107110192B (en) | Nut for fixing on a sheet | |
| US9770752B2 (en) | Manufacturing method of gears for a speed change device and its apparatus | |
| KR20200082148A (en) | rivet screw drill | |
| CN114776681B (en) | Riveting method and riveting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |