CN210440380U - Self-tapping and self-drilling screw with good anti-loosening effect - Google Patents
Self-tapping and self-drilling screw with good anti-loosening effect Download PDFInfo
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- CN210440380U CN210440380U CN201921082860.9U CN201921082860U CN210440380U CN 210440380 U CN210440380 U CN 210440380U CN 201921082860 U CN201921082860 U CN 201921082860U CN 210440380 U CN210440380 U CN 210440380U
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- self
- screw
- tapping
- locking
- holographic
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Abstract
The utility model discloses a self-tapping self-drilling screw with good anti-loosening effect, which comprises a screw rod, a screw head, a self-tapping drill bit and a plurality of locking holographic bolts, wherein the screw rod is cylindrical, the surface of the screw rod is coiled and protruded with self-tapping threads, the lower end of the screw rod is provided with the self-tapping drill bit, the self-tapping drill bit and the screw rod are of an integrated structure, the upper end of the screw rod is provided with the screw head, the screw head is vertically provided with a plurality of thread cavities, the thread cavities and the screw rod are arranged in parallel relatively, the thread cavities are all provided with the locking holographic bolts which can be matched with the thread cavities, the locking holographic bolts are arranged downwards, the locking holographic bolts can be detachably connected with the thread cavities, the utility model discloses a thread cavity and a locking holographic bolt are arranged on the screw head of the self-tapping self-drilling screw, when the screw is screwed, the locking holographic, the top of the locking holographic bolt can be propped against the surface of the carrier, so that the friction force is enhanced, and the loosening is effectively prevented.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of screw, especially the effectual self tapping of locking moving from the technical field of boring screw.
[ background of the invention ]
Screws are commonly used in machinery, electrical appliances, buildings, etc., and are generally made of metal or plastic, and have a cylindrical shape, grooves with concave and convex surfaces are called threads, the main function of the screw is to connect two objects or fix the position of one object, and the screw can be removed or re-fastened without losing its efficiency. The top diameter of general screw is great, and the common circular, square or regular hexagon that has, if the top is regular hexagon, can rotate the screw with the spanner, if the top is circular, the top openly also has the flute, facilitates the use corresponding screwdriver and rotates the screw. The most common grooves are in a straight shape, a cross shape and a square shape, and have other shapes, the self-drilling self-tapping screw is one of screws, the screw is provided with a drill tail tip, the tip part is named as a twist drill, the screw can automatically drill a central hole during assembly, and then a thread matched with the central hole is self-tapping extruded in the hole on the carrier by means of an adjacent thread part, so the self-drilling self-tapping screw is called as the self-drilling self-tapping screw, the self-tapping screw is mostly used on walls or woods, the hardness of the walls and the woods is lower, and after the self-drilling self-tapping screw is used for a long time, the larger the gap between the self-tapping screw and the screw hole becomes, the screw is easy to.
[ Utility model ] content
The utility model aims at solving the problem among the prior art, provide an anti-loosening self tapping self-drilling screw effectual, can utilize the increase between locking holographic bolt reinforcing self tapping screw and the carrier to wipe the power, effectively prevent not hard up.
In order to realize the purpose, the utility model provides an it is effectual from boring screw to prevent moving self tapping, including screw rod, spiral shell head, self tapping drill bit, a plurality of holographic bolt of locking, the screw rod be the cylinder type, screw rod surface coil the protrusion and be equipped with self tapping screw thread, the screw rod lower extreme be equipped with self tapping drill bit, self tapping drill bit and screw rod be the integrated into one piece structure, screw rod upper end be equipped with the spiral shell head, the spiral shell overhead vertical a plurality of screw thread chambeies that are equipped with, screw thread chamber and the relative parallel arrangement of screw rod, the screw thread intracavity all be equipped with can with the holographic bolt of screw thread chamber complex locking, the holographic bolt of locking set up down, the holographic bolt of locking can dismantle with the screw thread chamber and be connected.
Preferably, the cross section of the screw head is regular hexagon or regular quadrangle, and the outer ring of the screw head is provided with an outer wall which can be matched with the bayonet wrench.
Preferably, the surface of the screw head facing the end of the screw rod is provided with a plurality of anti-skid clamping teeth.
Preferably, the number of the thread cavities is at least two, the thread cavities are distributed around the center of the screw head at equal intervals, and locking holographic bolts are arranged in the thread cavities.
Preferably, the upper end of the threaded cavity is provided with a threaded cavity cover which can be matched with the threaded cavity, and the threaded cavity cover and the threaded cavity can be detachably clamped.
Preferably, the length of the locking holographic bolt is smaller than the thickness of the screw head, the top end of the locking holographic bolt is provided with an inner hexagonal wrench bayonet or a cross screwdriver bayonet or a straight screwdriver bayonet, and the lower end of the locking holographic bolt is provided with a top.
Preferably, the screw head and the self-tapping drill are coaxially arranged, and the screw, the screw head and the self-tapping drill are in an integrally formed structure.
The utility model relates to a locking effectual self tapping from boring screw's beneficial effect that moves: the utility model discloses a set up threaded cavity and locking holographic bolt on the spiral shell head with the self tapping self-drilling screw, after the screw tightening, can be through screwing up locking holographic bolt, the carrier surface can be withstood to the top of locking holographic bolt, and reinforcing frictional force effectively prevents not hard up.
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 a self-tapping and self-drilling screw with good anti-loosening effect according to the present invention;
fig. 2 is a front sectional view of a self-tapping self-drilling screw with good anti-loosening effect;
fig. 3 is a schematic top view of the structure of the self-tapping and self-drilling screw with good anti-loosening effect.
In the figure: 1-screw, 2-screw head, 3-self-tapping drill, 4-locking holographic bolt, 11-self-tapping screw, 21-screw cavity, 22-anti-skid latch and 211-screw cavity cover.
[ detailed description ] embodiments
Referring to fig. 1, 2 and 3, the self-tapping self-drilling screw with good anti-loosening effect of the present invention comprises a screw rod 1, a screw head 2, a self-tapping drill bit 3 and a plurality of holographic locking bolts 4, wherein the screw rod 1 is cylindrical, the surface of the screw rod 1 is coiled and protruded with self-tapping threads 11, the lower end of the screw rod 1 is provided with the self-tapping drill bit 3, the self-tapping drill bit 3 and the screw rod 1 are in an integrated structure, the upper end of the screw rod 1 is provided with the screw head 2, the screw head 2 is vertically provided with a plurality of thread cavities 21, the thread cavities 21 and the screw rod 1 are arranged in parallel, the holographic locking bolts 4 capable of being matched with the thread cavities 21 are arranged in the thread cavities 21, the holographic locking bolts 4 are arranged downwards, the holographic locking bolts 4 are detachably connected with the thread cavities 21, the cross section of the screw head 2 is regular hexagon or regular quadrangle, the outer ring of the screw head 2 is provided with an outer wall which can be matched with a bayonet wrench, the surface of the screw head 2 facing the end of the screw rod 1 is provided with a plurality of anti-skid clamping teeth 22, at least two thread cavities 21 are arranged, the thread cavities 21 are distributed at equal intervals around the center of the screw head 2, the locking holographic bolts 4 are arranged in the thread cavities 21, the upper ends of the thread cavities 21 are provided with thread cavity covers 211 which can be matched with the thread cavities, the thread cavity cover 211 is detachably clamped with the thread cavity 21, the length of the locking holographic bolt 4 is less than the thickness of the screw head 2, the top end of the locking holographic bolt 4 is provided with an inner hexagonal wrench bayonet or a cross screwdriver bayonet or a straight screwdriver bayonet, the locking holographic bolt 4 lower extreme be equipped with top 41, screw rod 1, spiral shell head 2, self tapping drill 3 coaxial setting, screw rod 1, spiral shell head 2, self tapping drill 3 be the integrated into one piece structure.
The utility model discloses the working process:
the utility model relates to a locking effectual self tapping self-drilling screw is in the course of the work, aim at self tapping drill bit 3 required fixed position, block the spiral shell head 2 through the spanner and twist the screw, self tapping drill bit 3 taps the required hole of fix with screw, it is tight until will self drilling self tapping screw to continue to twist, also twist locking holographic bolt 4 in the spiral shell head 2 after the screw is tightened, locking holographic bolt 4, the top 41 of locking holographic bolt 4 can withstand the carrier surface, the reinforcing friction power, can cover threaded cavity chamber lid 211 on the threaded cavity 21 behind the locking holographic bolt 4.
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 (7)
1. The utility model provides an effectual self tapping of locking moving self-drilling screw which characterized in that: including screw rod (1), spiral shell head (2), self tapping drill (3), a plurality of locking holographic bolt (4), screw rod (1) be the cylinder type, screw rod (1) surface coil the protrusion and be equipped with self tapping screw thread (11), screw rod (1) lower extreme be equipped with self tapping drill (3), self tapping drill (3) and screw rod (1) be the integrated into one piece structure, screw rod (1) upper end be equipped with spiral shell head (2), spiral shell head (2) go up the vertical a plurality of screw thread chambeies (21) that are equipped with, screw thread chamber (21) and screw rod (1) relative parallel arrangement, screw thread chamber (21) in all be equipped with can with screw thread chamber (21) complex locking holographic bolt (4), locking holographic bolt (4) set up down, locking holographic bolt (4) can dismantle with screw thread chamber (21) and be connected.
2. A self-tapping and self-drilling screw with good anti-loosening effect as claimed in claim 1, wherein: the cross section of the screw head (2) is regular hexagon or regular quadrangle, and the outer ring of the screw head (2) is provided with an outer wall which can be matched with a bayonet wrench.
3. A self-tapping and self-drilling screw with good anti-loosening effect as claimed in claim 1, wherein: the screw head (2) is provided with a plurality of anti-skid clamping teeth (22) towards the end surface of the screw rod (1).
4. A self-tapping and self-drilling screw with good anti-loosening effect as claimed in claim 1, wherein: the thread cavity (21) have two at least, thread cavity (21) around the central equidistance subsection of spiral shell head (2), thread cavity (21) in all be equipped with locking holographic bolt (4).
5. A self-tapping and self-drilling screw with good anti-loosening effect as claimed in claim 1, wherein: the upper end of the threaded cavity (21) is provided with a threaded cavity cover (211) matched with the threaded cavity, and the threaded cavity cover (211) and the threaded cavity (21) can be detachably clamped.
6. A self-tapping and self-drilling screw with good anti-loosening effect as claimed in claim 1, wherein: the length of locking holographic bolt (4) be less than the thickness of spiral shell head (2), locking holographic bolt (4) top be equipped with hexagon socket wrench bayonet socket or cross screwdriver bayonet socket or a word screwdriver bayonet socket, locking holographic bolt (4) lower extreme be equipped with top (41).
7. A self-tapping and self-drilling screw with good anti-loosening effect as claimed in claim 1, wherein: the screw rod (1), the screw head (2) and the self-tapping drill bit (3) are coaxially arranged, and the screw rod (1), the screw head (2) and the self-tapping drill bit (3) are of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082860.9U CN210440380U (en) | 2019-07-11 | 2019-07-11 | Self-tapping and self-drilling screw with good anti-loosening effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082860.9U CN210440380U (en) | 2019-07-11 | 2019-07-11 | Self-tapping and self-drilling screw with good anti-loosening effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210440380U true CN210440380U (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921082860.9U Expired - Fee Related CN210440380U (en) | 2019-07-11 | 2019-07-11 | Self-tapping and self-drilling screw with good anti-loosening effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210440380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230632A (en) * | 2019-07-11 | 2019-09-13 | 海盐精工标准件厂 | A kind of self tapping self-drilling screw that anti-loosening effect is good |
-
2019
- 2019-07-11 CN CN201921082860.9U patent/CN210440380U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230632A (en) * | 2019-07-11 | 2019-09-13 | 海盐精工标准件厂 | A kind of self tapping self-drilling screw that anti-loosening effect is good |
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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: 20200501 Termination date: 20200711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |