CN210106345U - Self-drilling self-tapping type check screw - Google Patents
Self-drilling self-tapping type check screw Download PDFInfo
- Publication number
- CN210106345U CN210106345U CN201920722932.5U CN201920722932U CN210106345U CN 210106345 U CN210106345 U CN 210106345U CN 201920722932 U CN201920722932 U CN 201920722932U CN 210106345 U CN210106345 U CN 210106345U
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- Prior art keywords
- screw
- self
- screwhead
- screw body
- drilling
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- Expired - Fee Related
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 18
- 238000005553 drilling Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 9
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 7
- 210000003625 skull Anatomy 0.000 description 2
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model discloses a self-drilling self tapping check screw relates to mechanical connecting part field, and what solve is the current poor problem of brill tail screw locking effect. This product includes screw body and screwhead, the screw body passes through the polished rod and links to each other with the screwhead, and the afterbody of screw body is provided with the brill tail, can beat out the prefabricated hole of screw thread during the use, and the terminal surface of screwhead is provided with the inner groovy and the outside of screwhead is provided with the bulge piece, and the bulge piece covers the upper cover plate and can play locking effect after the installation, is provided with the screw thread on the screw body. This product reasonable in design, simple structure through the cooperation of parts such as brill tail, screw thread, protrusion piece, can beat out the prefabricated hole of screw thread simultaneously when the installation to twist the screw in, there is locking effect after screwing up, and the screwhead has the protrusion piece outward and can effectually play locking effect, has wide use prospect.
Description
Technical Field
The utility model relates to a machinery adapting unit field specifically is a self-drilling self tapping type check screw.
Background
The machine is a tool device which can help people to reduce work difficulty or save labor, and articles such as chopsticks, brooms and tweezers can be called as the machine, and the machines are simple machines. The complex machinery is composed of two or more simple machinery, and the machinery occupies an important position in the industry of China.
The self-drilling screw is a screw widely used in mechanical industry, and its working principle is that the tip of the drill tail at the tail of the screw is like a twist drill, and when it is assembled, the screw can self-drill a central hole, then by means of the adjacent screw thread portion, the screw thread matched with the central hole can be self-tapping extruded in the upper hole of the carrier.
However, the conventional self-drilling screw generates common threads, and the threaded fit is loosened in dynamic load. The self-drilling screw is widely applied in daily life and industrial production and manufacturing, but cannot play a role in preventing looseness.
Disclosure of Invention
An object of the utility model is to provide a self-drilling self tapping type check screw to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a from boring self tapping type check screw, includes screw body and screwhead, screw body passes through the polished rod and links to each other with the screwhead, and screw body's afterbody is provided with the brill tail, can beat out the prefabricated hole of screw during the use, and the terminal surface of screwhead is provided with the inner groovy and the outside of screwhead is provided with the bulge piece, and the bulge piece covers the upper cover plate and can play locking effect after the installation, is provided with the screw thread on the screw body.
As a further aspect of the present invention: the screw head, the polished rod and the screw body are in a step shape, the diameters of the screw head, the polished rod and the screw body are sequentially reduced, and the screw head, the polished rod and the screw body play roles in positioning, clamping and fixing during installation.
As a further aspect of the present invention: the inner groove is a quincuncial groove and is used for driving the bolt.
As a further aspect of the present invention: the thread adopts triangular thread, can be extruded into internal thread and has locking function.
As a further aspect of the present invention: the polish rod, the drill tail, the screw body and the screw head are all made of stainless steel materials, so that the cost is low, the materials are easy to obtain, the processing is convenient, and the service life is long.
Compared with the prior art, the beneficial effects of the utility model are that:
this product reasonable in design, simple structure through the cooperation of parts such as brill tail, screw thread, protrusion piece, can beat out the prefabricated hole of screw thread simultaneously when the installation to twist the screw in, there is locking effect after screwing up, and the screwhead has the protrusion piece outward and can effectually play locking effect, has wide use prospect.
Drawings
Fig. 1 is a front view of a self-drilling and self-tapping type check screw.
Fig. 2 is a right side view of the self-drilling, self-tapping check screw.
Fig. 3 is a left side view of the self-drilling, self-tapping check screw.
Fig. 4 is a schematic structural view of the self-drilling and self-tapping type check screw in use.
Wherein: 1-screw head, 2-inner groove, 3-convex block, 4-polish rod, 5-screw body and 6-drill tail.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
The utility model provides a from boring self tapping type check screw, includes screw body 5 and screwhead 1, screw body 5 links to each other with screwhead 1 through polished rod 4, and screw body 5's afterbody is provided with bores tail 6, can beat out the prefabricated hole of screw thread during the use, and screwhead 1's terminal surface is provided with inner groovy 2 and screwhead 1's the outside is provided with protrusion piece 3, and protrusion piece 3 covers the upper cover plate and can play locking effect after the installation, is provided with the screw thread on screw body 5.
The screw head 1, the polished rod 4 and the screw body 5 are step-shaped, and the diameters of the screw head 1, the polished rod 4 and the screw body 5 are reduced in sequence, so that the positioning and clamping fixing effects are realized during installation.
The polish rod 4, the drill tail 6, the screw body 5 and the screw head 1 are all made of stainless steel materials, so that the cost is low, the materials are easy to obtain, the processing is convenient, and the service life is long.
Example 2
The utility model provides a from boring self tapping type check screw, includes screw body 5 and screwhead 1, screw body 5 links to each other with screwhead 1 through polished rod 4, and screw body 5's afterbody is provided with bores tail 6, can beat out the prefabricated hole of screw thread during the use, and screwhead 1's terminal surface is provided with inner groovy 2 and screwhead 1's the outside is provided with protrusion piece 3, and protrusion piece 3 covers the upper cover plate and can play locking effect after the installation, is provided with the screw thread on screw body 5.
The inner groove 2 is a quincuncial groove and is used for driving a bolt.
The thread adopts triangular thread, can be extruded into internal thread and has locking function.
The utility model discloses a theory of operation is: when the installation, bore this product into the base member, the screw that the screw thread prefabricated hole that bores tail 6 and beat can relax twists, and the screw on the screw body 5 is the triangle screw thread, can extrude into the internal thread and have the locking effect, and the location stops when screwing up to polished rod 4, covers the skull, and the skull adopts asymmetric design, covers the back, and the protruding piece 3 outside the cylinder type screwhead 1 plays locking effect.
It needs to be explained in particular that, through the cooperation of parts such as brill tail 6, screw thread, bulge 3 in this application, it has effectively solved the poor problem of current brill tail screw locking effect.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a self-drilling self-tapping type check screw, includes screw body (5) and screwhead (1), screw body (5) link to each other with screwhead (1) through polished rod (4), its characterized in that, the afterbody of screw body (5) is provided with bores tail (6), and the terminal surface of screwhead (1) is provided with inner groovy (2) and the outside of screwhead (1) is provided with bulge (3), is provided with the screw thread on screw body (5).
2. Self-drilling and self-tapping anti-loosening screw according to claim 1, wherein the screw head (1), the polished rod (4) and the screw body (5) are stepped and the diameters of the screw head (1), the polished rod (4) and the screw body (5) are sequentially reduced.
3. Self-drilling, self-tapping anti-loosening screw according to claim 1, wherein the inner recess (2) is a quincunx recess.
4. A self-drilling, self-tapping anti-loosening screw as claimed in claim 1 or claim 3, wherein the thread is a triangular thread.
5. A self-drilling and self-tapping anti-loosening screw as claimed in claim 1, wherein the polish rod (4), the drill tail (6), the screw body (5) and the screw head (1) are all made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722932.5U CN210106345U (en) | 2019-05-20 | 2019-05-20 | Self-drilling self-tapping type check screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722932.5U CN210106345U (en) | 2019-05-20 | 2019-05-20 | Self-drilling self-tapping type check screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106345U true CN210106345U (en) | 2020-02-21 |
Family
ID=69561600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920722932.5U Expired - Fee Related CN210106345U (en) | 2019-05-20 | 2019-05-20 | Self-drilling self-tapping type check screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106345U (en) |
-
2019
- 2019-05-20 CN CN201920722932.5U patent/CN210106345U/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: 20200221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |