CN210290427U - Self-positioning screw structure - Google Patents
Self-positioning screw structure Download PDFInfo
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- CN210290427U CN210290427U CN201920967206.XU CN201920967206U CN210290427U CN 210290427 U CN210290427 U CN 210290427U CN 201920967206 U CN201920967206 U CN 201920967206U CN 210290427 U CN210290427 U CN 210290427U
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Abstract
The utility model discloses a self-align screw structure, use in fastener technical field, solved in the process of track traffic installation, can't carry out the technical problem connected or fastened through rotatory screw itself, its technical scheme main points are including screw rod and spiral shell head, the one end and the spiral shell head fixed connection of screw rod, the spiral shell head is on a parallel with the section of spiral shell head terminal surface for the rectangle, be equipped with the boss that prevents the screw rotation on the terminal surface of spiral shell head and screw rod fixed connection, the section that the boss is on a parallel with spiral shell head terminal surface is the square, set up the constant head tank on the terminal surface that the screw rod kept away from the spiral shell head; the central lines of the screw, the lug boss and the screw head are all positioned on the same straight line, and the surfaces of the screw, the lug boss and the screw head are all provided with a zinc coating; the screw has the technical effect that the screw can be positioned through the self structure, and the use requirements of rail transit on the screw in various different environments are facilitated.
Description
Technical Field
The utility model relates to a technical field of fastener, in particular to self-align screw structure.
Background
The screw is also called as a screw, most screws are composed of screw heads, screw rods and threads on the screw rods, are mainly used for wooden products, plastic products or machinery, are mainly used for connecting and fixing workpieces, and sometimes need some screws to finish special fixing work. In order to meet the normal operation of rail transit, various screw structures are needed.
The current chinese patent with publication number CN206072065U discloses a special screw, including screw rod and spiral shell head, the top fixed connection spiral shell head of screw rod is provided with the spiral shell head on the spiral shell head, and the surface of screw rod, spiral shell head and spiral shell head all is provided with the galvanizing coat, and the spiral shell head is covered and is provided with the mounting groove, and the center pin of screw rod, spiral shell head lid and mounting groove all is located same straight line, is provided with three recess on the inner wall of mounting groove.
The above prior art solutions have the following drawbacks: in the process of installing in track traffic, there are some special operational environment, can't connect or fasten through rotatory screw itself, and above-mentioned a special screw can't satisfy the operation requirement, needs a self-align screw structure urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a self-align screw structure has the effect that the screw can fix a position through self structure.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a self-positioning screw structure comprises a screw rod and a screw head, wherein one end of the screw rod is fixedly connected with the screw head, the cross section of the screw head parallel to the end face of the screw head is rectangular, a boss for preventing the screw from rotating is arranged on the end face of the screw head fixedly connected with the screw rod, the cross section of the boss parallel to the end face of the screw head is square, and a positioning groove is formed in the end face of the screw rod far away from the screw head;
the central lines of the screw, the lug boss and the screw head are all positioned on the same straight line, and the surfaces of the screw, the lug boss and the screw head are all provided with a zinc coating.
By adopting the technical scheme, the screw head and the lug boss are not provided with the non-convolution bodies, the self-positioning screw is inserted into the fixing hole matched with the self-positioning screw, and the screw head can drive the self-positioning screw to be initially positioned; after the self-positioning screw is preliminarily positioned, the nut matched with the screw is slowly screwed in from one end of the screw, at the moment, the boss can further accurately position the self-positioning screw, the nut is continuously screwed, and fastening can be completed. The cross section of the boss is square, and in the positioning process of the boss, the four side walls are stressed uniformly, and the positioning accuracy is high.
The utility model discloses further set up to: the screw, the boss and the screw head are of an integrated structure.
By adopting the technical scheme, the screw rod, the boss and the screw head are integrally formed, so that the integral rigidity of the screw is improved.
The utility model discloses further set up to: the thickness of the screw head is 3-5 times of that of the boss.
Through adopting above-mentioned technical scheme, the spiral shell head bears the most power that prevents screw self pivoted, therefore thicker thickness can promote its self rigidity.
The utility model discloses further set up to: the length of the screw head is 2-3 times of the length of the boss, and the width of the screw head is equal to the length of the boss.
By adopting the technical scheme, the screw head is in a strip shape, so that an operator can conveniently hold the screw head; on the other hand, the force for preventing the bolt from rotating is distributed on the long side wall of the screw head. The width of the screw head is equal to the length of the boss, so that the deformation resistance of the boss and two side walls parallel to the long edge of the screw head is enhanced.
The utility model discloses further set up to: the end face area of the boss close to the screw rod is smaller than the end face area of the boss fixedly connected with the screw head, and the side wall of the boss is a guide inclined plane.
By adopting the technical scheme, the guide inclined plane enables the screw to move more stably when the screw is further self-positioned; and the guide slope helps to improve the tightness of the self-positioning screw connection.
The utility model discloses further set up to: the locating slot is a straight slot, and the length direction of the straight slot is consistent with the length direction of the screw head.
Through adopting above-mentioned technical scheme, whether the position that the operator can judge the self-align screw according to the direction in a word groove is put, need not directly to look over the spiral shell head, and this is very convenient to some environment of being not convenient for observe the spiral shell head, and is more directly perceived.
The utility model discloses further set up to: the width direction of the screw head is provided with a butt cambered surface, and the circle center of the butt cambered surface coincides with the central line of the screw head.
Through adopting above-mentioned technical scheme, the butt cambered surface coincides with the central line from the position screw, and what the butt cambered surface at spiral shell head both ends received prevents that screw self pivoted power is less.
The utility model discloses further set up to: and one end of the screw rod, which is close to the boss, is provided with a chamfer circle.
Through adopting above-mentioned technical scheme, the chamfer circle has certain guide effect, can make self-align screwed connection inseparabler.
To sum up, the utility model discloses following beneficial effect has:
through the setting of rectangle spiral shell head and square boss, can will realize the preliminary location and the further location to the screw, spiral shell head and boss are all not the body of circling round, and positional stability is high.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a front view of the present invention.
In the figure, 1, a screw; 11. positioning a groove; 12. chamfering; 2. a boss; 21. a guide slope; 3. a screw head; 31. and is abutted against the cambered surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): as shown in fig. 1, for the utility model discloses a from line location screw structure, including screw rod 1 and spiral shell head 3, the one end and the spiral shell head 3 fixed connection of screw rod 1, spiral shell head 3 is on a parallel with the cross-section of spiral shell head 3 terminal surface for the rectangle, and the width direction of spiral shell head 3 is equipped with butt cambered surface 31, the centre of a circle of butt cambered surface 31 and the coincidence of the central line of spiral shell head 3.
As shown in fig. 1 and 2, a boss 2 for preventing the screw from rotating is arranged on the end face of the screw head 3 fixedly connected with the screw rod 1, the section of the boss 2 parallel to the end face of the screw head 3 is square, the area of the end face of the boss 2 close to the screw rod 1 is smaller than the area of the end face of the boss 2 fixedly connected with the screw head 3, and the side wall of the boss 2 is a guide inclined plane 21. In this embodiment, the guide slope 21 is deviated from the vertical direction by 5 degrees.
As shown in fig. 1 and 2, in the present embodiment, the thickness of the screw head 3 is 3 times the thickness of the boss 2. The length of the screw head 3 is 2 times of the length of the boss 2, and the width of the screw head 3 is just equal to the side length of the bottom of the boss 2.
As shown in figure 1, the screw rod 1, the boss 2 and the screw head 3 are of an integrated structure, the central lines of the screw rod 1, the boss 2 and the screw head 3 are all located on the same straight line, and the surfaces of the screw rod 1, the boss 2 and the screw head 3 are all provided with a zinc coating.
As shown in fig. 1, a positioning groove 11 is formed on the end surface of the screw 1 far away from the screw head 3; the positioning groove 11 is a straight groove, and the length direction of the straight groove is consistent with the length direction of the screw head 3. One end of the screw rod 1 close to the boss 2 is provided with a chamfer circle 12, and the chamfer circle 12 enables the self-positioning nut to be connected more tightly.
The implementation principle of the above embodiment is as follows: on some equipment of rail transit, there are some special working environments that can not be connected by rotating the screw itself, and this needs to use self-positioning screw. When using this self-align screw, earlier put into the fixed orifices of adaptation with it from the self-align screw in, the screw head 3 is at first accomplished the preliminary positioning work to the self-align screw, and the operator operates in 1 one end of screw rod, can judge whether to accomplish preliminary positioning from the self-align screw according to constant head tank 11. After the initial positioning, an operator screws in the nut matched with the screw rod 1 from the screw rod 1 until two side walls of the length direction of the screw head 3 are abutted to the fixing hole, the screw nut is screwed in continuously until four side walls of the boss 2 are abutted to the fixing hole, and the boss 2 completes the further positioning of the self-positioning screw. The nut is screwed in continuously, and the chamfer circle 12 on the screw rod 1 enables the self-positioning screw connection to be tighter.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a from location screw structure, includes screw rod (1) and spiral shell head (3), its characterized in that: one end of the screw rod (1) is fixedly connected with the screw head (3), the cross section of the screw head (3) parallel to the end face of the screw head (3) is rectangular, a boss (2) for preventing the screw from rotating is arranged on the end face of the screw head (3) fixedly connected with the screw rod (1), the cross section of the boss (2) parallel to the end face of the screw head (3) is square, and a positioning groove (11) is formed in the end face of the screw rod (1) far away from the screw head (3);
the center lines of the screw rod (1), the boss (2) and the screw head (3) are all located on the same straight line, and zinc coating layers are arranged on the surfaces of the screw rod (1), the boss (2) and the screw head (3).
2. The self-positioning screw structure of claim 1, wherein: the screw rod (1), the boss (2) and the screw head (3) are of an integrated structure.
3. A self-positioning screw structure according to claim 2, wherein: the thickness of the screw head (3) is 3-5 times of that of the boss (2).
4. A self-positioning screw structure according to claim 3, wherein: the length of the screw head (3) is 2-3 times of the length of the boss (2), and the width of the screw head (3) is equal to the length of the boss (2).
5. A self-positioning screw structure according to claim 2, wherein: the end face area of the boss (2) close to the screw rod (1) is smaller than the end face area of the boss (2) and the screw head (3) which are fixedly connected, and the side wall of the boss (2) is a guide inclined plane (21).
6. A self-positioning screw structure according to claim 2, wherein: the positioning groove (11) is a straight groove, and the length direction of the straight groove is consistent with that of the screw head (3).
7. A self-positioning screw structure according to claim 2, wherein: the width direction of screw head (3) is equipped with butt cambered surface (31), the centre of a circle of butt cambered surface (31) and the coincidence of the central line of screw head (3).
8. A self-positioning screw structure according to claim 2, wherein: and one end of the screw rod (1) close to the boss (2) is provided with a chamfer circle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967206.XU CN210290427U (en) | 2019-06-25 | 2019-06-25 | Self-positioning screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967206.XU CN210290427U (en) | 2019-06-25 | 2019-06-25 | Self-positioning screw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290427U true CN210290427U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920967206.XU Active CN210290427U (en) | 2019-06-25 | 2019-06-25 | Self-positioning screw structure |
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| CN (1) | CN210290427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116379102A (en) * | 2023-05-29 | 2023-07-04 | 云神和新能源科技(苏州)有限公司 | Variable electromagnetic damping device for photovoltaic tracker |
-
2019
- 2019-06-25 CN CN201920967206.XU patent/CN210290427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116379102A (en) * | 2023-05-29 | 2023-07-04 | 云神和新能源科技(苏州)有限公司 | Variable electromagnetic damping device for photovoltaic tracker |
| CN116379102B (en) * | 2023-05-29 | 2023-10-24 | 云神和新能源科技(苏州)有限公司 | Variable electromagnetic damping device for photovoltaic tracker |
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