CN117948329A - Screw - Google Patents
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- CN117948329A CN117948329A CN202410002343.5A CN202410002343A CN117948329A CN 117948329 A CN117948329 A CN 117948329A CN 202410002343 A CN202410002343 A CN 202410002343A CN 117948329 A CN117948329 A CN 117948329A
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- screw
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- convex part
- screw head
- groove
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- 230000001154 acute effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of screw structures, in particular to a screw; the screw head is provided with a top surface, a bottom surface, a side surface, a groove and a convex part; the side surface is connected with the top surface and the bottom surface; the grooves are concavely arranged on the top surface, the grooves start from the central axis of the screw head and extend along the radial direction of the screw head, and the number of the grooves is at least two; the convex part is arranged in the groove, the upper surface of the convex part is lower than the top of the groove, and the convex part is arranged at intervals with the central axis of the screw head; the anti-skid teeth are arranged on the bottom surface, and two adjacent anti-skid teeth are arranged at intervals; through the top surface processing recess at the spiral shell head, be equipped with the convex part in the recess, the upper surface of convex part is less than the top of recess, and during the use, the effort of external screwdriver is at the inboard surface of convex part and recess, and the burr that produces is located the recess, ensures the security that the top surface used, ensures the security that the screw used promptly, and the setting of anti-skidding tooth increases the resistance that the screw was reversed simultaneously, ensures the fastness that the use was connected.
Description
Technical Field
The invention relates to the technical field of screw structures, in particular to a screw.
Background
The self-tapping screw that uses always borrows self-tapping screw itself extrudees the object, cuts out the screw thread and realizes the connection purpose, appears following problem in the use: 1. the upper surface of the screw head is provided with a cross groove or a straight groove, when the screw head is used, a cross screwdriver or a straight bolt is used for screwing the self-tapping screw into an external object to be connected, but the conventional screw connecting piece is assembled and disassembled for many times, the cross groove or the straight groove of the screw generates a sliding phenomenon, namely, a burr appears at the edge of the cross groove or the straight groove, so that potential safety hazards exist in the use of the screw, and meanwhile, the assembling and disassembling difficulty is increased; 2. when severe vibration phenomenon occurs or after long-time use, the self-tapping screw is gradually loosened, so that the firmness of connection is affected, and the safety of use and the firmness of connection are affected by the occurrence of the problems and need to be improved.
Disclosure of Invention
In order to overcome the defects of potential safety hazard and poor connection firmness in the using process in the prior art, the invention aims to provide a screw which improves the using safety and the connection firmness.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
The screw comprises a screw head, a screw rod and anti-slip teeth, wherein the screw rod is connected with the screw head, and the screw head is provided with a top surface, a bottom surface, a side surface, a groove and a convex part;
The side surface is connected with the top surface and the bottom surface;
the grooves are concavely arranged on the top surface, the grooves start from the central axis of the screw head and extend along the radial direction of the screw head, and the number of the grooves is at least two;
the convex part is arranged in the groove, the upper surface of the convex part is lower than the top of the groove, and the convex part is arranged at intervals with the central axis of the screw head;
The anti-slip teeth are arranged on the bottom surface, and two adjacent anti-slip teeth are arranged at intervals.
Further, the top surface and/or the bottom surface are/is set to be a plane, and the side surface is set to be an arc surface.
Further, the convex part is provided with an inclined plane, the inclined plane is arranged close to the central axis of the screw head, and the inclined plane inclines from top to bottom towards the central axis of the screw head.
Further, the number of the grooves is two, and the two grooves are in a straight shape.
Further, the number of the grooves is four, and the four grooves are in a cross shape.
Further, two adjacent grooves are provided with cambered surfaces.
Further, the grooves extend to the sides.
Further, the anti-slip tooth comprises a first face and a second face, the first face and the bottom face are arranged at an included angle, the second face and the bottom face are arranged at an included angle, and the degree of the included angle formed by the first face and the bottom face is larger than that formed by the second face and the bottom face.
Further, the first surface is planar, and the second surface is spherical.
Further, the anti-slip tooth further comprises a third face, the third face is connected with the first face and the second face, the first face and the bottom face are arranged at right angles, and the second face and the bottom face are arranged at acute angles.
The invention has the beneficial effects that: through the top surface processing recess at the spiral shell head, be equipped with the convex part in the recess, the upper surface of convex part is less than the top of recess, and during the use, the effort of external screwdriver is at the inboard surface of convex part and recess, and the burr that produces is located the recess, ensures the security that the top surface used, ensures the security that the screw used promptly, and the setting of anti-skidding tooth increases the resistance that the screw was reversed simultaneously, ensures the fastness that the use was connected.
Drawings
FIG. 1 is a schematic perspective view of a first structure of the present invention;
FIG. 2 is a top view of a first construction of the present invention;
FIG. 3 is a front view of a first construction of the present invention;
FIG. 4 is a schematic view of a second perspective view of a second structure according to the present invention;
FIG. 5 is an enlarged partial view of the portion A of FIG. 4;
FIG. 6 is a schematic view of a first perspective view of a second embodiment of the present invention;
FIG. 7 is a top view of a second construction of the present invention;
FIG. 8 is a perspective cross-sectional view of a second construction of the present invention;
FIG. 9 is a second perspective view of a second embodiment of the present invention;
FIG. 10 is a partially enlarged view of the portion B of FIG. 9;
The reference numerals include:
1-screw head 11-top 12-bottom
13-Side 14-groove 15-protrusion
16-Inclined plane 17-cambered surface 2-screw
3-Anti-skid teeth 31-first surface 32-second surface
33-Third face.
Detailed Description
The present invention will be further described with reference to examples and drawings, which are not intended to be limiting, for the understanding of those skilled in the art.
Embodiment one.
Referring to fig. 1 to 5, the screw of the present invention includes a screw head 1, a screw rod 2 and anti-slip teeth 3, wherein the screw rod 2 is connected with the screw head 1, and the screw head 1 is provided with a top surface 11, a bottom surface 12, a side surface 13, a groove 14 and a protrusion 15;
the side surface 13 connects the top surface 11 and the bottom surface 12;
The grooves 14 are concavely formed on the top surface 11, the grooves 14 start from the central axis of the screw head 1 and extend along the radial direction of the screw head 1, and the number of the grooves 14 is at least two;
the convex part 15 is arranged in the groove 14, the upper surface of the convex part 15 is lower than the top of the groove 14, and the convex part 15 is arranged at a distance from the central axis of the screw head 1;
The anti-slip teeth 3 are arranged on the bottom surface 12, and two adjacent anti-slip teeth 3 are arranged at intervals.
Specifically, in this embodiment, the grooves 14 are machined on the top surface 11 of the screw head 1, the number of the grooves 14 is at least two, two or more grooves 14 are all communicated, each groove 14 is provided with a protrusion 15, the upper end surface of each protrusion 15 is located below the top of each groove 14, one end of each protrusion 15 in the horizontal direction starts from one side of each groove 14, the other end of each protrusion 15 in the horizontal direction is spaced from the other end of each groove 14, the protrusions 15 are spaced from the central axis of the screw head 1, when in use, the screw head of an external screw driver is inserted between the protrusions 15 and 15, the acting force of the screw head of the screw driver is applied to the inner side surface of each groove 14 to enable the screw to rotate, and when the screw is disassembled for many times, a spike may appear, but the spike is located in the groove 14, so that potential safety hazards are not caused to a user, and the use safety is improved;
The lower surface 12 of the screw head 1 is provided with a plurality of anti-slip teeth 3, the anti-slip teeth 3 are positioned at the edge of the lower surface 12, the anti-slip teeth 3 are convexly arranged on the lower surface 12, and the plurality of anti-slip teeth 3 are arranged in a ring-shaped array with the central axis of the screw head 1, so that larger external force is required when the screw is reversely screwed out, and the connection firmness of the screw in the use process can be improved.
Through processing recess 14 at the top surface 11 of spiral shell head 1, be equipped with convex part 15 in recess 14, the upper surface of convex part 15 is less than the top of recess 14, and during the use, the effort of external screwdriver is at the inboard surface of convex part 15 and recess 14, and the flash that produces is located recess 14, ensures the security that top surface 11 used, ensures the security that the screw used promptly, and the setting of anti-skidding tooth 3 increases the resistance that the screw was reversed simultaneously, ensures the fastness of use connection.
The top surface 11 and/or the bottom surface 12 are/is set to be flat, and the side surface 13 is set to be an arc surface, and preferably, in this embodiment, the top surface 11 and the bottom surface 12 are both flat structures, and the side surface 13 is an arc surface, so as to improve the aesthetic property of the screw structure and the safety in the use process.
The convex part 15 is provided with the inclined plane 16, the inclined plane 16 is close to the central axis setting of the screw head 1, the inclined plane 16 is inclined towards the central axis direction of the screw head 1 from top to bottom, the setting of the inclined plane 16 facilitates the direct collision between the screw head of the screwdriver and the convex part 15 in the process of entering the bottom of the groove 14, reduces the abrasion of the convex part 15, and improves the service life of the screw.
The number of the grooves 14 is two, and the two grooves 14 are in a shape of a Chinese character 'yi', so that the use requirement of a Chinese character 'yi' is met.
The number of the grooves 14 is four, and the four grooves 14 are in a cross shape, so that the use requirement of a cross batch is met.
The two adjacent grooves 14 are provided with cambered surfaces 17, so that the safety of the structure is further improved.
The anti-skid teeth 3 comprise a first surface 31 and a second surface 32, the first surface 31 and the bottom surface 12 are arranged at an included angle, the second surface 32 and the bottom surface 12 are arranged at an included angle, the included angle degree formed by the first surface 31 and the bottom surface 12 is larger than that formed by the second surface 32 and the bottom surface 12, wherein the first surface 31 of each anti-skid tooth 3 is positioned at the left side of the second surface 32, so that the anti-skid teeth 3 formed by the first surface 31 and the second surface 32 in a surrounding manner have small locking force resistance in the screw locking process, and conversely have large resistance in the dismounting process, and the firmness of the screw connection and the stability of a connecting object are ensured.
The first surface 31 is planar, and the second surface 32 is spherical, so that friction resistance in the rotation process during screw locking is reduced.
Embodiment two.
Referring to fig. 6 to 10, the screw of the present invention includes a screw head 1, a screw rod 2 and anti-slip teeth 3, wherein the screw rod 2 is connected with the screw head 1, and the screw head 1 is provided with a top surface 11, a bottom surface 12, a side surface 13, a groove 14 and a protrusion 15;
the side surface 13 connects the top surface 11 and the bottom surface 12;
The grooves 14 are concavely formed on the top surface 11, the grooves 14 start from the central axis of the screw head 1 and extend along the radial direction of the screw head 1, and the number of the grooves 14 is at least two;
the convex part 15 is arranged in the groove 14, the upper surface of the convex part 15 is lower than the top of the groove 14, and the convex part 15 is arranged at a distance from the central axis of the screw head 1;
The anti-slip teeth 3 are arranged on the bottom surface 12, and two adjacent anti-slip teeth 3 are arranged at intervals.
Specifically, in this embodiment, the grooves 14 are machined on the top surface 11 of the screw head 1, at least two grooves 14 are provided, two or more grooves 14 are all communicated, each groove 14 is provided with a protrusion 15, the upper end surface of each protrusion 15 is located below the top of each groove 14, one end of each protrusion 15 in the horizontal direction starts from one side of each groove 14, the other end of each protrusion 15 in the horizontal direction is spaced from the other end of each groove 14, the protrusions 15 are spaced from the central axis of the screw head 1, during use, the screw head of an external screw driver is inserted between the protrusions 15 and 15, the acting force of the screw head of the screw driver is applied to the inner side surface of each groove 14 to enable the screw to rotate, and a spike may appear after the screw is disassembled multiple times, but the spike is located in the groove 14, so that potential safety hazards are not caused to a user, and the use safety is improved.
The lower surface 12 of the screw head 1 is provided with a plurality of anti-slip teeth 3, the anti-slip teeth 3 are positioned at the edge of the lower surface 12, the anti-slip teeth 3 are convexly arranged on the lower surface 12, and the plurality of anti-slip teeth 3 are arranged in a ring-shaped array with the central axis of the screw head 1, so that larger external force is required when the screw is reversely screwed out, and the connection firmness of the screw in the use process can be improved.
The grooves 14 extend to the side surfaces 13, i.e. the grooves 14 penetrate through the screw head in the radial direction of the screw head 1, so that the radial length of the grooves 14 is increased to meet different use requirements.
The anti-slip tooth 3 further comprises a third surface 33, the third surface 33 is connected with the first surface 31 and the second surface 32, the first surface 31 and the bottom surface 12 are arranged at right angles, the second surface 32 and the bottom surface 12 are arranged at an acute angle, the structure ensures that the locking force resistance in the screw locking process is small, and conversely, the resistance in the dismounting process is large, so that larger external force is needed when the screw is reversely screwed out, the static state of the screw relative to the object can still be ensured in the process of vibration of the object or long-time use, and the connection firmness of the screw in the use process is ensured.
The rest of the present embodiment is the same as the first embodiment, and the unexplained features in the present embodiment are all explained by the first embodiment, and are not described here again.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (10)
1. A screw, characterized in that: the anti-skid screw comprises a screw head (1), a screw rod (2) and anti-skid teeth (3), wherein the screw rod (2) is connected with the screw head (1), and the screw head (1) is provided with a top surface (11), a bottom surface (12), side surfaces (13), grooves (14) and convex parts (15);
The side surface (13) is connected with the top surface (11) and the bottom surface (12);
the grooves (14) are concavely formed in the top surface (11), the grooves (14) start from the central axis of the screw head (1) and extend along the radial direction of the screw head (1), and the number of the grooves (14) is at least two;
The convex part (15) is arranged in the groove (14), the upper surface of the convex part (15) is lower than the top of the groove (14), and the convex part (15) is arranged at a distance from the central axis of the screw head (1);
The anti-skid teeth (3) are arranged on the bottom surface (12), and two adjacent anti-skid teeth (3) are arranged at intervals.
2. The screw of claim 1, wherein: the top surface (11) and/or the bottom surface (12) are/is set to be plane, and the side surface (13) is set to be arc surface.
3. The screw of claim 1, wherein: the convex part (15) is provided with an inclined surface (16), the inclined surface (16) is arranged close to the central axis of the screw head (1), and the inclined surface (16) inclines towards the central axis direction of the screw head (1) from top to bottom.
4. The screw of claim 1, wherein: the number of the grooves (14) is two, and the two grooves (14) are in a straight shape.
5. The screw of claim 1, wherein: the number of the grooves (14) is four, and the four grooves (14) are cross-shaped.
6. The screw according to claim 5, wherein: the two adjacent grooves (14) are provided with cambered surfaces (17).
7. The screw of claim 1, wherein: the recess (14) extends to the side (13).
8. The screw of claim 1, wherein: the anti-slip tooth (3) comprises a first surface (31) and a second surface (32), wherein the first surface (31) and the bottom surface (12) are arranged at an included angle, the second surface (32) and the bottom surface (12) are arranged at an included angle, and the degree of the included angle formed by the first surface (31) and the bottom surface (12) is larger than that formed by the second surface (32) and the bottom surface (12).
9. The screw of claim 8, wherein: the first surface (31) is planar, and the second surface (32) is spherical.
10. The screw of claim 8, wherein: the anti-slip tooth (3) further comprises a third surface (33), the third surface (33) is connected with the first surface (31) and the second surface (32), the first surface (31) and the bottom surface (12) are arranged at right angles, and the second surface (32) and the bottom surface (12) are arranged at acute angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410002343.5A CN117948329A (en) | 2024-01-02 | 2024-01-02 | Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410002343.5A CN117948329A (en) | 2024-01-02 | 2024-01-02 | Screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117948329A true CN117948329A (en) | 2024-04-30 |
Family
ID=90791646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410002343.5A Pending CN117948329A (en) | 2024-01-02 | 2024-01-02 | Screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117948329A (en) |
-
2024
- 2024-01-02 CN CN202410002343.5A patent/CN117948329A/en active Pending
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| PB01 | Publication | ||
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