CN216111663U - Seam pressing screw for light steel keel - Google Patents
Seam pressing screw for light steel keel Download PDFInfo
- Publication number
- CN216111663U CN216111663U CN202121900974.7U CN202121900974U CN216111663U CN 216111663 U CN216111663 U CN 216111663U CN 202121900974 U CN202121900974 U CN 202121900974U CN 216111663 U CN216111663 U CN 216111663U
- Authority
- CN
- China
- Prior art keywords
- screw
- bolt body
- bolt
- light steel
- steel keel
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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Abstract
The utility model discloses a seam pressing screw for a light steel keel, which comprises: the bolt body is arranged at the tail part of the bolt at one end of the bolt body, and the head part of the screw at the other end of the bolt body; the utility model presets a certain inclination angle on the bolt body; when the light steel keel is fastened, the light steel keel is subjected to expansion locking through the inclination angle; the phenomenon that the tensile force in the axial direction falls off and the trouble caused by bolt connection is avoided; in addition, the periphery of the drilling hole at the tail part of the screw is extruded and supplemented by utilizing the head part of the trapezoidal screw; and the burrs at the drill hole of the light steel keel are gathered at the matching part of the screw head and the bolt body; then the bolt body, the tail part of the screw and the head part of the screw are all provided with fillets, so that the situation that the screw cannot reach the fastening size when the light steel keel is fastened is avoided.
Description
Technical Field
The utility model belongs to the field of connecting pieces, and particularly relates to a seam pressing screw for a light steel keel.
Background
The screw is a tool for fastening the machine parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object.
The existing screw is basically arranged in a hidden place, so that the appearance is improved, and scratches caused by personnel touch are reduced; the light steel keel is thinner, so that the traditional thick grains can be loosened; however, due to the limitation of the height of the screw head, the flat surfaces of some components to be connected are raised; when the connected components are sealed, unevenness and cracking are easily caused; thereby affecting the fit of the connecting assembly; the threads of the traditional screw are mostly rectangular or triangular, the rectangular screw needs to be matched with a nut for use, and when the connecting component is matched, the rectangular screw can be installed only by punching in advance; the triangular screw cannot bear the tensile force in the axial direction during installation; easily fall off.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: a caulking screw for a light steel keel is provided to solve the problems involved in the background art.
The technical scheme is as follows: a caulking screw for a light gauge steel, comprising:
the bolt body, set up the screw afterbody at bolt body one end to and set up the screw head portion at the other end of bolt body.
In a further embodiment, the outer surfaces of the bolt body and the tail part of the bolt are provided with external threads, so that the complexity caused by pre-punching is avoided.
In a further embodiment, an inclination angle is preset between one end of the bolt body and the other end of the bolt body; and the bolt body is trapezoidal; and then the bolt body forms the area inflation when the light gauge steel is connected, avoids the axis direction atress to drop and the light gauge steel junction is not hard up.
In a further embodiment, a round angle is arranged at the matching position of the tail part of the screw and one end of the bolt body, so that the phenomenon that the light steel keel is blocked in a rotating mode when being excessively connected is avoided.
In a further embodiment, the screw head is trapezoidal; and a circumscribed fillet is arranged at the matching part of one end of the head part of the screw and the other end of the bolt body; the burr that appears at the screw afterbody through light gauge steel drilling department is assembled to screw head and the body cooperation department of bolt to screw head portion at the screw head portion.
In a further embodiment, the other end of the screw head is provided with a cross-shaped groove; thereby adapting to different rotating devices.
Has the advantages that: the utility model relates to a seam pressing screw for a light steel keel, which is characterized in that a certain inclination angle is preset on a bolt body; when the light steel keel is fastened, the light steel keel is subjected to expansion locking through the inclination angle; the phenomenon that the tensile force in the axial direction falls off and the trouble caused by bolt connection is avoided; in addition, the periphery of the drilling hole at the tail part of the screw is extruded and supplemented by utilizing the head part of the trapezoidal screw; and the burrs at the drill hole of the light steel keel are gathered at the matching part of the screw head and the bolt body; then the bolt body, the tail part of the bolt and the head part of the bolt are all provided with round corners, and the light steel keel is thinner; the dense lines can be effectively fixed, and the situation that the screw cannot reach the fastening size when the light steel keel is fastened is avoided.
Drawings
Fig. 1 is a schematic view of the installation of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
The reference signs are: the bolt comprises a bolt body 1, a screw head 2, a screw tail 3, a cross groove 21, a main keel 100, a cross keel 101 and a sealing plate mounting surface 110.
Detailed Description
The utility model relates to a seam pressing screw for a light steel keel, which is used for carrying out expansion locking on the light steel keel through an inclination angle. The present invention will be further described in detail with reference to the following examples and accompanying drawings.
A caulking screw for a light gauge steel includes: the bolt comprises a bolt body 1, a screw head 2, a screw tail 3, a cross groove 21, a main keel 100, a cross keel 101 and a sealing plate mounting surface 110.
The bolt comprises a bolt body 1, a bolt tail part 3 arranged at one end of the bolt body 1 and a bolt head part 2 arranged at the other end of the bolt body 1; external threads are arranged on the outer surfaces of the bolt body 1 and the bolt tail 3, so that the complexity caused by pre-punching is avoided; an inclination angle is preset between one end of the bolt body 1 and the other end of the bolt body 1; the bolt body 1 is trapezoidal; and then the bolt body 1 forms the area inflation when the light gauge steel is connected, avoids the axis direction atress to drop and the light gauge steel junction is not hard up.
The matched part of the tail part 3 of the screw and one end of the bolt body 1 is provided with a round angle, so that the phenomenon that the light steel keel is blocked in a rotating mode when being excessively connected is avoided.
The screw head part 2 is in a trapezoid shape; and a circumscribed fillet is arranged at the matching part of one end of the screw head part 2 and the other end of the bolt body 1; the screw head part 2 converges burrs at the screw tail part 3 through the drilling position of the light steel keel to the matching position of the screw head part 2 and the bolt body 1; the other end of the screw head part 2 is provided with a cross-shaped groove 21; thereby adapting to different rotating devices.
Description of the working principle: firstly, placing a cross keel 101 at a pre-installation position of a main keel 100; at the moment, the screw is aligned with the fixing positions of the auxiliary keel 101 and the main keel 100, the cross groove 21 is locked and rotated by means of manual or automatic equipment, the screw tail part 3 rotates on the auxiliary keel 101 and generates a threaded hole, the screw tail part 3 and the bolt body 1 enter the matching position of the main keel 100 and the auxiliary keel 101 under the action of external force of the cross groove 21, the screw head part 2 approaches the sealing plate mounting surface 110 along with the rotation of the thread, and burrs generated by the screw tail part 3 are extruded through the screw head part 2, so that the sealing plate is prevented from being exposed and scratched; thereby maintaining the plate mounting surface 110 and the plate flat.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the utility model.
The utility model is not described in detail in order to avoid unnecessary repetition.
Claims (4)
1. A caulking screw for a light gauge steel, comprising:
the bolt comprises a bolt body (1), a bolt tail part (3) arranged at one end of the bolt body (1) and a bolt head part (2) arranged at the other end of the bolt body (1), wherein an inclination angle is preset between one end of the bolt body (1) and the other end of the bolt body (1); the bolt body (1) is trapezoidal, and a round angle is arranged at the matching position of the tail part (3) of the bolt and one end of the bolt body (1).
2. The caulking screw for a light steel keel according to claim 1, wherein the outer surfaces of the bolt body (1) and the screw tail part (3) are provided with external threads.
3. A caulking screw for a light steel keel according to claim 1, wherein the screw head (2) is trapezoidal; and a circumscribed fillet is arranged at the matching part of one end of the screw head (2) and the other end of the bolt body (1).
4. A caulking screw for a light steel keel according to claim 1, wherein the other end of the screw head (2) is opened with a cross-shaped groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121900974.7U CN216111663U (en) | 2021-08-14 | 2021-08-14 | Seam pressing screw for light steel keel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121900974.7U CN216111663U (en) | 2021-08-14 | 2021-08-14 | Seam pressing screw for light steel keel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111663U true CN216111663U (en) | 2022-03-22 |
Family
ID=80725955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121900974.7U Expired - Fee Related CN216111663U (en) | 2021-08-14 | 2021-08-14 | Seam pressing screw for light steel keel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111663U (en) |
-
2021
- 2021-08-14 CN CN202121900974.7U patent/CN216111663U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220322 |