CN214578196U - High-wear-resistance self-tapping screw - Google Patents
High-wear-resistance self-tapping screw Download PDFInfo
- Publication number
- CN214578196U CN214578196U CN202120080161.1U CN202120080161U CN214578196U CN 214578196 U CN214578196 U CN 214578196U CN 202120080161 U CN202120080161 U CN 202120080161U CN 214578196 U CN214578196 U CN 214578196U
- Authority
- CN
- China
- Prior art keywords
- screw
- wear
- screw head
- main body
- main part
- 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
- Earth Drilling (AREA)
Abstract
The utility model discloses a high wear-resisting self tapping screw, including screw head, main part pole, screw point, chip guide groove, sand grip, the upper end of screw head is equipped with one and twists the groove, and the bottom of screw head is equipped with a plurality of sand grips, and the sand grip is from the axis external radiation of screw head, screw head bottom is equipped with a main part pole, and the end of main part pole is fixed with a screw point, and the screw point is the taper shape, is equipped with the external screw thread on the assembly that main part pole and screw point are constituteed, the chip guide groove has one at least, and the chip guide groove extends to the lower part of main part pole from the chuck department spiral of screw point, be equipped with wear-resistant coating on main part pole, screw point, the external screw thread. The utility model discloses a set up wear-resistant coating on main part pole, screw point, external screw thread for self tapping screw has fine wearability, and difficult wearing and tearing have improved life.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of fastener, especially self tapping screw's technical field.
[ background of the invention ]
The screw is a commonly used fastener, and its application is comparatively extensive, and its kind is also more. The self-tapping screw is a common screw, can automatically tap a threaded hole, does not need to be punched in advance, and is convenient to use. The existing self-tapping screw has unsatisfactory wear resistance.
[ Utility model ] content
The utility model aims at solving the problem in the prior art, providing a high wear-resisting self tapping screw, can make self tapping screw have fine wearability.
In order to realize the above object, the utility model provides a high wear-resisting self tapping screw, including screw head, main part pole, screw point, chip guide groove, sand grip, the upper end of screw head is equipped with one and twists the movable groove, and the bottom of screw head is equipped with a plurality of sand grips, and the sand grip is from the axis external radiation of screw head, screw head bottom is equipped with a main part pole, and the end of main part pole is fixed with a screw point, and the screw point is the taper shape, is equipped with the external screw thread on the assembly that main part pole and screw point are constituteed, the chip guide groove has one at least, and the chip guide groove is located the spiral from the chuck of screw point and is extended to the lower part of main part pole, be equipped with wear-resistant coating on main part pole, screw point, the external screw thread.
Preferably, the upper end of the screw head is in a spherical crown shape, and the lower end of the screw head is in an inverted cone frustum shape.
Preferably, a plurality of polished rod sections are arranged on the main rod.
Preferably, the helical direction of the chip guide groove is the same as the helical direction of the external thread.
The utility model has the advantages that: the wear-resistant coating is arranged on the main body rod, the screw tip and the external thread, so that the self-tapping screw has good wear resistance and is not easy to wear, and the service life is prolonged; the setting of polished rod section makes the piece that produces when self tapping screw tap hole can obtain effectual holding, avoids the piece too much and is blocked when leading to the screw to twist, has improved self tapping performance.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a front view of the high wear-resistant self-tapping screw of the present invention.
In the figure: 1-screw head, 2-main body rod, 3-screw tip, 10-screwing groove, 11-raised strip, 20-external thread, 21-polished rod section and 30-chip guide groove.
[ detailed description ] embodiments
Referring to fig. 1, the utility model relates to a high wear-resistant self-tapping screw, which comprises a screw head 1, a main body rod 2, a screw tip 3, a chip guide groove 30 and a convex strip 11, wherein the upper end of the screw head 1 is provided with a screwing groove 10, the bottom end of the screw head 1 is provided with a plurality of convex strips 11, the convex strips 11 radiate outwards from the axis of the screw head 1, the bottom of the screw head 1 is provided with a main body rod 2, the tail end of the main body rod 2 is fixed with a screw tip 3, the screw tip 3 is conical, the assembly formed by the main body rod 2 and the screw tip 3 is provided with an external thread 20, at least one chip guide groove 30 is provided, the chip guide groove 30 extends spirally to the lower part of the main body rod 2 from the chuck of the screw tip 3, the wear-resistant coating is arranged on the main body rod 2, the screw tip 3 and the external thread 20, the upper end of the screw head 1 is spherical cap, and the lower end of the screw head 1 is in an inverted conical shape, the main body rod 2 is provided with a plurality of polished rod sections 21, and the spiral direction of the chip guide grooves 30 is the same as that of the external threads 20.
The utility model discloses the working process:
in the working process of the high-wear-resistance self-tapping screw, the wear-resistant coating is arranged on the main body rod 2, the screw tip 3 and the external thread 20, so that the self-tapping screw has good wear resistance and is not easy to wear, and the service life is prolonged; the setting of polished rod section 21 makes the piece that produces when self tapping screw tap hole can obtain effectual holding, avoids the piece too much and is blocked when leading to the screw to twist, has improved self tapping performance.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (4)
1. The utility model provides a high wear-resisting self tapping screw which characterized in that: comprises a screw head (1), a main body rod (2), a screw tip (3), a chip guide groove (30) and a convex strip (11), the upper end of the screw head (1) is provided with a screwing groove (10), the bottom end of the screw head (1) is provided with a plurality of convex strips (11), the convex strips (11) radiate outwards from the axis of the screw head (1), the bottom of the screw head (1) is provided with a main body rod (2), the tail end of the main body rod (2) is fixed with a screw tip (3), the screw tip (3) is conical, an external thread (20) is arranged on a combination body formed by the main body rod (2) and the screw tip (3), at least one chip guide groove (30) is arranged, the chip guide groove (30) extends to the lower part of the main body rod (2) from the chuck of the screw tip (3) in a spiral way, the main body rod (2), the screw tip (3) and the external thread (20) are provided with wear-resistant coatings.
2. A highly wear-resistant self-tapping screw as defined in claim 1, wherein: the upper end of the screw head (1) is in a spherical crown shape, and the lower end of the screw head (1) is in an inverted cone frustum shape.
3. A highly wear-resistant self-tapping screw as defined in claim 1, wherein: the main body rod (2) is provided with a plurality of sections of polished rod sections (21).
4. A highly wear-resistant self-tapping screw as defined in claim 1, wherein: the spiral direction of the chip guide groove (30) is the same as the spiral direction of the external thread (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120080161.1U CN214578196U (en) | 2021-01-13 | 2021-01-13 | High-wear-resistance self-tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120080161.1U CN214578196U (en) | 2021-01-13 | 2021-01-13 | High-wear-resistance self-tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578196U true CN214578196U (en) | 2021-11-02 |
Family
ID=78368418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120080161.1U Active CN214578196U (en) | 2021-01-13 | 2021-01-13 | High-wear-resistance self-tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578196U (en) |
-
2021
- 2021-01-13 CN CN202120080161.1U patent/CN214578196U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1248374A (en) | Wood screw | |
| CA2344142A1 (en) | Taper lock contact tip and head assembly for welding device | |
| CN201115890Y (en) | Improved round die | |
| CN214578196U (en) | High-wear-resistance self-tapping screw | |
| US449887A (en) | Island | |
| GB467814A (en) | Improvements in screw-threaded fasteners | |
| CN208442145U (en) | A kind of machine screw for twisting into two parts convenient post-treatment | |
| CN209654397U (en) | A kind of Thread-cutting screw | |
| CN214304770U (en) | Short ending screw fastener | |
| CN210637343U (en) | Screw rod capable of preventing rust and jamming | |
| CN206708160U (en) | Wood screw | |
| CN202070835U (en) | Screw tap for bisecting tapping cutting output | |
| CN209943303U (en) | Self-tapping screw with inverted teeth | |
| CN107363275A (en) | A kind of motorcycle troop's rod aperture processes gang tool | |
| CN210153057U (en) | Big flat-head self-tapping screw | |
| CN107605903A (en) | A kind of Novel nail | |
| CN107152242B (en) | Chip-guiding type drill Kong Luogan | |
| CN108506309A (en) | A kind of machine screw for twisting into two parts convenient post-treatment | |
| CN205478788U (en) | Novel improve self tapping locking screw of structure | |
| CN209324827U (en) | A kind of modified self-tapping screw | |
| CN218487390U (en) | Screw tap not easy to break | |
| CN216227397U (en) | Conical tap | |
| CN218718048U (en) | Anti-loosening drill tail screw with pad | |
| CN208565228U (en) | A kind of head has the flat recess tapping screw of cyphelia | |
| CN216714955U (en) | Tail cutting screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |