CN205315438U - Scrape lacquer screw - Google Patents
Scrape lacquer screw Download PDFInfo
- Publication number
- CN205315438U CN205315438U CN201521140143.9U CN201521140143U CN205315438U CN 205315438 U CN205315438 U CN 205315438U CN 201521140143 U CN201521140143 U CN 201521140143U CN 205315438 U CN205315438 U CN 205315438U
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- Prior art keywords
- screw
- threaded portion
- conduction
- screw thread
- concave trough
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Abstract
The utility model relates to a scrape lacquer screw, this is stopped including the screw, screw body has cap head and screw thread portion, the afterbody of screw thread portion has cutting edge and chip groove, have on the length direction of screw thread portion and screw up the direct recess that the direction is unanimous for the certain angle of screw body axis slope and with screw thread portion, the surface of direct recess have with the external screw thread that the external screw thread of screw thread portion suited. The utility model discloses a have on the screw length direction of portion and tighten the direct recess that the orientation is unanimous for the certain angle of screw body axis slope and with screw portion, make this screw possess better lacquer and the chip removal function of scraping, after the internal thread is twisted by this screw, make this screw possess better lacquer and chip removal function, the film coating that can wipe the interior threaded surface of nut more effectively off of scraping to make screw and nut internal thread metal touch face increase, electrically conductive effect is better.
Description
Technical field
This utility model belongs to technical field of fastening, is specifically related to one and scrapes paint screw.
Background technology
Scraping paint screw is a kind of auto parts and components combination securing member, at the ground wire grounded place of car electrics, because the paint film in nut exists, causes electrical equipment and electric appliance circuits imperfect earth, affects electric system work. Therefore, when using plain screw, it is necessary to wiped off by the paint filled in nut thread with screw tap or specific purpose tool before being screwed into, then assemble, so not only taken a lot of work but also time-consuming, it is not suitable with the needs that automobile is produced in enormous quantities. Although Vehicles Collected from Market occurs that some scrape paint bolt, but owing to simply devising blade and chip area at tail end, when being screwed into female thread, can only wipe part painting layer off, electric conductivity is not up to optimum efficiency.
Utility model content
The purpose of this utility model is in that to solve above-mentioned technical problem and provide one to scrape paint screw, and the paint film in nut can be made after in the female thread be screwed into nut to be scraped and be discharged, and makes screw strengthen with nut inner thread metal contact surface, and conductive effect is more preferably.
For achieving the above object, this utility model adopts the following technical scheme that
One scrapes paint screw, including screw, this is stopped, described screw body has cap head portion and threaded portion, there is between described cap head portion and threaded portion one section of non-threaded polished rod portion for installing a shim pack component, the afterbody of described threaded portion has blade and chip area, having on the length direction of described threaded portion and tilt certain angle the conduction through concave trough consistent with threaded portion tightening direction relative to screw body axis, the surface of described conduction through concave trough has the external screw thread that the external screw thread with described threaded portion adapts.
Described conduction through concave trough is four, is uniformly laid on described threaded portion clockwise.
The angle of inclination of described conduction through concave trough is 5 degree.
Described shim pack component includes plain cushion and spring washer, and described spring washer is between described plain cushion and cap head portion.
This utility model tilts certain angle the conduction through concave trough consistent with threaded portion tightening direction by having on the length direction of threaded portion relative to screw body axis, the surface of described conduction through concave trough has the external screw thread that the external screw thread with described threaded portion adapts, make this screw possess and better scrape paint and chip removal function, the conduction through concave trough of threaded portion surface thereof is utilized after being screwed in nut, what make screw scrapes paint effect more preferably, can more effectively wipe the paint film coating on nut inner thread surface off, so that screw strengthens with nut inner thread metal contact surface, conductive effect is more preferably.
Accompanying drawing explanation
The schematic front view scraping paint screw that Fig. 1 provides for this utility model embodiment;
Fig. 2 is the Fig. 1 generalized section along line A-A.
Detailed description of the invention
Below, in conjunction with example, substantive distinguishing features of the present utility model and advantage are further described, but this utility model is not limited to listed embodiment.
Shown in Fig. 1-2, one scrapes paint screw, including screw, this is stopped, described screw body has cap head portion 1 and threaded portion 2, there is between described cap head portion and threaded portion one section of non-threaded polished rod portion 3 for installing a shim pack component, the afterbody of described threaded portion has blade and chip area 6, having on the length direction of described threaded portion 2 and tilt certain angle the conduction through concave trough 7 consistent with threaded portion tightening direction relative to screw body axis, the surface of described conduction through concave trough 7 has the external screw thread that the external screw thread with described threaded portion 2 adapts.
Further, described conduction through concave trough is four, and angle of inclination and direction are as one man by being uniformly laid on described threaded portion clockwise, shown in Figure 2, thus form the step surface structure of certain gradient on the surface of described threaded portion.
It should be noted that the quantity of described conduction through concave trough 7 can also be multiple in 4 or less than 4, can design accordingly according to the width size of the size specification of screw and conduction through concave trough, when quantity such as conduction through concave trough is lacked, its width can be increased, when quantity is many, it is possible to reduce its width.
It should be noted that, described conduction through concave trough 7 leads directly to the other end from the afterbody of threaded portion--head end, run through the helicitic texture face of whole threaded portion, and the corner that the bottom of this conduction through concave trough 7 connects with sidewall is arcs of recesses transition structure, the side wall upper part of described conduction through concave trough is connected by arc-shaped transition structure with threaded engagement place.
Preferably, described conduction through concave trough is 5 degree relative to the angle of inclination of screw body. Certainly, this angle of inclination can carry out the adjustment that adapts to as required, it is possible to increase, or reduce, specifically do not limit.
This utility model by increasing described being uniformly arranged clockwise and the conduction through concave trough 7 consistent with threaded portion tightening direction on threaded portion, make this screw possess and better scrape paint and chip removal function, after this screw is screwed into female thread, utilize the conduction through concave trough that threaded portion surface thereof certain angle is arranged clockwise, what make screw scrapes paint effect more preferably, more effectively wiping the paint film coating on nut inner thread surface off, so that screw strengthens with nut inner thread metal contact surface, conductive effect is more preferably.
Further, since the end table of clockwise conduction through concave trough 7 has the externally threaded corresponding helicitic texture slightly lower than described threaded portion, realize same with nut coordinates, and does not result in and is connected ineffective problem with nut.
Wherein, described shim pack component includes plain cushion 5 and spring washer 4, and described spring washer 4 is between described plain cushion 5 and cap head portion 1.
Can be seen that, this utility model tilts certain angle the conduction through concave trough consistent with threaded portion tightening direction by having on the length direction of threaded portion relative to screw body axis, the surface of described conduction through concave trough has the external screw thread that the external screw thread with described threaded portion adapts, make this screw possess and better scrape paint and chip removal function, after this screw is screwed into female thread, utilize the conduction through concave trough that threaded portion surface thereof certain angle is arranged clockwise, what make screw scrapes paint effect more preferably, can more effectively wipe the paint film coating on nut inner thread surface off, so that screw strengthens with nut inner thread metal contact surface, conductive effect is more preferably.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (4)
1. scrape paint screw for one kind, including screw, this is stopped, described screw body has cap head portion and threaded portion, there is between described cap head portion and threaded portion one section of non-threaded polished rod portion for installing a shim pack component, the afterbody of described threaded portion has blade and chip area, it is characterized in that, having on the length direction of described threaded portion and tilt certain angle the conduction through concave trough consistent with screwed tight direction relative to screw body axis, the surface of described conduction through concave trough has the external screw thread that the external screw thread with described threaded portion adapts.
2. scrape paint screw according to claim 1, it is characterised in that described conduction through concave trough is four, be uniformly laid on described threaded portion clockwise.
3. according to claim 1 or claim 2 scrape paint screw, it is characterised in that the angle of inclination of described conduction through concave trough is 5 degree.
4. scrape paint screw according to claim 1, it is characterised in that described shim pack component includes plain cushion and spring washer, and described spring washer is between described plain cushion and cap head portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140143.9U CN205315438U (en) | 2015-12-31 | 2015-12-31 | Scrape lacquer screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140143.9U CN205315438U (en) | 2015-12-31 | 2015-12-31 | Scrape lacquer screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315438U true CN205315438U (en) | 2016-06-15 |
Family
ID=56201482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521140143.9U Active CN205315438U (en) | 2015-12-31 | 2015-12-31 | Scrape lacquer screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269641A (en) * | 2017-07-28 | 2017-10-20 | 广东美的制冷设备有限公司 | Metal plate connection structure and household electrical appliance |
| CN112392827A (en) * | 2019-08-14 | 2021-02-23 | 黄廖全 | Screw structure with adhesive layer and coating method thereof |
-
2015
- 2015-12-31 CN CN201521140143.9U patent/CN205315438U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269641A (en) * | 2017-07-28 | 2017-10-20 | 广东美的制冷设备有限公司 | Metal plate connection structure and household electrical appliance |
| CN112392827A (en) * | 2019-08-14 | 2021-02-23 | 黄廖全 | Screw structure with adhesive layer and coating method thereof |
| CN112392827B (en) * | 2019-08-14 | 2022-07-08 | 黄廖全 | Screw structure with adhesive layer and coating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |