CN212272762U - Self-drilling screw with anti-corrosion effect - Google Patents
Self-drilling screw with anti-corrosion effect Download PDFInfo
- Publication number
- CN212272762U CN212272762U CN202020523593.0U CN202020523593U CN212272762U CN 212272762 U CN212272762 U CN 212272762U CN 202020523593 U CN202020523593 U CN 202020523593U CN 212272762 U CN212272762 U CN 212272762U
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- screw
- fastening nut
- drilling
- self
- lag
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Abstract
The utility model discloses a bore tail screw with anticorrosive effect, including the drilling rod, the right-hand member of drilling rod is provided with the brill tail, and is provided with the protection on the drilling rod and fills up, the protection fills up left side and fastening nut contact, and fastening nut sets up at the left end of drilling rod, and the fastening nut outside is provided with the lag simultaneously. This self-drilling screw with anticorrosive effect, be provided with the protection pad, after the screw installation is fixed, the protection pad is laminated with fastening nut mutually, the sealed effect of screw connection portion has been strengthened to the protection pad simultaneously, reduce outside water, impurity such as dust gets into screw connection portion easily, it is corroded to reduce its connecting portion, be provided with the lag in addition, can cup joint on fastening nut after the screw fixation, play the safeguard effect to fastening nut, prevent that the screw from taking place the corrosion, the terminal surface blade of setting is responsible for the drilling cutting, side blade and chip removal slot are responsible for the chip removal, be provided with fastening nut and cross recess in addition, but multiple mode is twisted the screw and is moved fixedly.
Description
Technical Field
The utility model relates to a bore self screw technical field specifically is a bore self screw with anticorrosive effect.
Background
The screw is the most commonly used part for fastening, utilize the physics and the mathematical principle of the circular rotation in inclined plane and frictional force of object, fastener thing parts's instrument step by step, it is people's new utility model in recent years to bore the tail screw, it is the screw that the screw front end has self tapping drill bit to bore the tail screw, it is the tail of boring the tail screw and is boring tail or sharp tail form, need not to punch the drill wire on the work piece earlier, the tapping of punching is once accomplished the operation, time saving and labor saving, but current brill tail screw is when the locking, the leakproofness is poor, outside impurity such as water, dust get into screwed connection portion easily, joint strength has been reduced and connection life, it is not corrosion-resistant.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a self-drilling screw with anticorrosive effect to current self-drilling screw that proposes in solving above-mentioned background art is when the locking, and the leakproofness is poor, and impurity such as outside water, dust get into screwed connection portion easily, have reduced joint strength and connection life, not corrosion-resistant problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bore tail screw with anticorrosive effect, includes the drilling rod, the right-hand member of drilling rod is provided with the brill tail, and is provided with the protection pad on the drilling rod, the protection pad left side contacts with fastening nut, and fastening nut sets up the left end at the drilling rod, and the fastening nut outside is provided with the lag simultaneously.
Preferably, the drill rod comprises a thread, and the thread is arranged on the outer side of the drill rod.
Preferably, the drill tail comprises an end face cutting edge, a side cutting edge and a chip removal groove, the end face cutting edge is arranged at the right end of the drill tail, the drill tail is provided with the side cutting edge and the chip removal groove, and the chip removal groove is arranged between the side cutting edges.
Preferably, the protection pad is sleeved on the drill rod, and the maximum size of the protection pad is smaller than that of the fastening nut.
Preferably, the fastening nut comprises a first groove and a cross groove, the first groove is arranged in the fastening nut, and the cross groove is arranged in the first groove.
Preferably, the protective sleeve comprises a second groove, the second groove is formed in the protective sleeve, the protective sleeve is sleeved on the fastening nut, and the protective sleeve and the fastening nut are attached to each other.
Compared with the prior art, the beneficial effects of the utility model are that: the self-drilling screw with the anti-corrosion effect,
(1) the arranged end face cutting edge is responsible for drilling and cutting, the side face cutting edge and the chip removal groove are responsible for chip removal, and meanwhile, the screw threads arranged on the drill rod are matched, so that the effects of drilling and chip removal are better achieved, the operation is time-saving and labor-saving, the phenomenon that chips block drilling is reduced, and in addition, the screw can be screwed and fixed in multiple modes due to the arrangement of the fastening screw cap and the cross groove;
(2) be provided with the protection pad, after the screw installation is fixed, the protection pad is laminated with fastening nut mutually, and the protection pad has strengthened the sealed effect of screw connecting portion simultaneously, reduces impurity such as outside water, dust and gets into screw connecting portion easily, reduces its connecting portion and is corroded, is provided with the lag in addition, can cup joint on fastening nut after the screw fixation, plays the safeguard effect to fastening nut, prevents that the screw from taking place the corrosion.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a right side view of the protective cover of the present invention;
FIG. 3 is a schematic structural view of the present invention between the drill rod and the fastening nut;
fig. 4 is a schematic view of the left side of the fastening nut of the present invention.
In the figure: 1. the drill rod comprises a drill rod body, 101 threads, 2 drill tails, 201 end face cutting edges, 202 side face cutting edges, 203 chip removal grooves, 3 protective pads, 4 fastening nuts, 401 first grooves, 402 cross grooves, 5 protective sleeves, 501 and second grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a self-drilling screw with an anti-corrosion effect is disclosed, as shown in figure 1, figure 2, figure 3 and figure 4, a self-drilling 2 is arranged at the right end of a drill rod 1, a protection pad 3 is arranged on the drill rod 1, the drill rod 1 comprises a thread 101, the thread 101 is arranged on the outer side of the drill rod 1, the thread 101 plays a role in drilling and chip removal, the self-drilling 2 comprises an end face cutting edge 201, a side face cutting edge 202 and a chip removal groove 203, the end face cutting edge 201 is arranged at the right end of the self-drilling 2, the side face cutting edge 202 and the chip removal groove 203 are arranged on the self-drilling 2, the chip removal groove 203 is arranged between the side face cutting edges 202, drilling and cutting are carried out under the action of the end face cutting edge 201, the side face cutting edge 202 and the chip removal groove 203 facilitate chip removal, the protection pad 3 is sleeved on the drill rod 1, the maximum size of the protection pad 3 is smaller than, Impurities such as dust and the like easily enter the screw connecting part to reduce the corrosion of the connecting part, the left side of the protective pad 3 is contacted with the fastening screw cap 4, the fastening screw cap 4 is arranged at the left end of the drill rod 1, meanwhile, a protective sleeve 5 is arranged on the outer side of the fastening screw cap 4, the fastening screw cap 4 comprises a first groove 401 and a cross groove 402, the first groove 401 is arranged in the fastening screw cap 4, meanwhile, a cross-shaped groove 402 is arranged in the first groove 401, a fastening nut 4 and the cross-shaped groove 402 are arranged, the screw can be screwed and fixed in various ways, the protective sleeve 5 comprises a second groove 501, the second groove 501 is arranged on the protective sleeve 5, the protective sleeve 5 is sleeved on the fastening screw cap 4, the protective sleeve 5 and the fastening screw cap 4 are arranged in a fitting manner, the protective sleeve 5 is arranged, can cup joint on fastening nut 4 after the screw fixation, play the safeguard effect to fastening nut 4, prevent that the screw from taking place the corrosion.
The working principle is as follows: when the self-drilling screw is used, the protective pad 3 can be firstly sleeved on the drill rod 1, the self-drilling screw can be screwed and fixed through the fastening screw cap 4 or the cross groove 402 according to actual conditions, drilling and cutting are carried out through the end face cutting edge 201, the side face cutting edge 202, the chip removal groove 203 and the thread 101 carry out chip removal, after the self-drilling screw is screwed down, the protective pad 3 enhances the sealing effect of the self-drilling screw connecting part, impurities such as external water, dust and the like are reduced to easily enter the self-drilling screw connecting part, the connecting part is reduced to be corroded, the protective sleeve 5 is sleeved on the fastening screw cap 4 to play a protective effect on the fastening screw cap 4, and the self-drilling screw is prevented from being corroded.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a self drilling screw with anticorrosive effect, includes drilling rod (1), its characterized in that: the right-hand member of drilling rod (1) is provided with bores tail (2), and is provided with protective pad (3) on drilling rod (1), protective pad (3) left side and fastening nut (4) contact, and fastening nut (4) set up the left end at drilling rod (1), and the fastening nut (4) outside is provided with lag (5) simultaneously.
2. The self-drilling screw with corrosion prevention effect as claimed in claim 1, wherein: the drill rod (1) comprises a thread (101), and the thread (101) is arranged on the outer side of the drill rod (1).
3. The self-drilling screw with corrosion prevention effect as claimed in claim 1, wherein: the drill tail (2) comprises an end face cutting edge (201), a side cutting edge (202) and chip removal grooves (203), the end face cutting edge (201) is arranged at the right end of the drill tail (2), the side cutting edge (202) and the chip removal grooves (203) are arranged on the drill tail (2), and the chip removal grooves (203) are arranged between the side cutting edges (202).
4. The self-drilling screw with corrosion prevention effect as claimed in claim 1, wherein: the protection pad (3) is sleeved on the drill rod (1), and the maximum size of the protection pad (3) is smaller than that of the fastening screw cap (4).
5. The self-drilling screw with corrosion prevention effect as claimed in claim 1, wherein: the fastening screw cap (4) comprises a first groove (401) and a cross groove (402), the first groove (401) is arranged in the fastening screw cap (4), and the cross groove (402) is arranged in the first groove (401).
6. The self-drilling screw with corrosion prevention effect as claimed in claim 1, wherein: lag (5) are including second recess (501), and second recess (501) set up on lag (5), and lag (5) cup joint on fastening nut (4), and the laminating setting between lag (5) and fastening nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020523593.0U CN212272762U (en) | 2020-04-11 | 2020-04-11 | Self-drilling screw with anti-corrosion effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020523593.0U CN212272762U (en) | 2020-04-11 | 2020-04-11 | Self-drilling screw with anti-corrosion effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212272762U true CN212272762U (en) | 2021-01-01 |
Family
ID=73876318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020523593.0U Expired - Fee Related CN212272762U (en) | 2020-04-11 | 2020-04-11 | Self-drilling screw with anti-corrosion effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212272762U (en) |
-
2020
- 2020-04-11 CN CN202020523593.0U patent/CN212272762U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |