CN205136295U - Self -tapping screw that wall body and steel joist are connected - Google Patents
Self -tapping screw that wall body and steel joist are connected Download PDFInfo
- Publication number
- CN205136295U CN205136295U CN201520924990.8U CN201520924990U CN205136295U CN 205136295 U CN205136295 U CN 205136295U CN 201520924990 U CN201520924990 U CN 201520924990U CN 205136295 U CN205136295 U CN 205136295U
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- CN
- China
- Prior art keywords
- nail
- head
- neck
- steel joist
- grinding grain
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a building five metals material, concretely relates to self -tapping screw that wall body and steel joist are connected, including the head of a nail, nail body, screw tail, its characterized in that: the nail body have fine screw thread, screw tail have the cutting edge, the head of a nail for horn mouth form, the tip sets up the cross and sinks the groove, the neck sets up a plurality of grinding grain. Furthermore, grinding grain salient be three pyramid -shaped in the shape of neck. Compared with the prior art, the utility model discloses the neck sets up a plurality of grinding grain, becomes wall plates surface grinding the powder and carrys over out of when head of a nail rotation is followed to the grinding grain, and within the head of a nail immerse wall plates very easily, efficient, required electric tool power was little, the frequent twist -off phenomenon of nut can not appear.
Description
Technical field
The utility model relates to architectural hardware material, is specifically related to the tapping screw that a kind of body of wall is connected with Steel Joist.
Background technique
Along with social development, country carries out wall reform policy, to realize the object protecting soil, energy saving.The novel wall material kind occurred socially in recent years gets more and more, wherein apply more, have gypsum or cement light partition wall board, color steel, air-entrained concrete building block, wire net frames foam plate, small concrete block masonry, gypsum board, gypsum block, figuline building blocks, sintered perforated brick, shale brick, solid concrete brick, the large plate of PC, horizontal hole concrete panel, active carbon body of wall, PIC Novel partition plate etc.It is simple that these new materials have assembling, easy construction, raise the efficiency, duration is short, shock resistance is good, flatness is high, attractive in appearance, do not rely on agent structure to install, versatility and generalization good, Security height etc. plurality of advantages, but the research and development of the installation five metals supporting with it does not catch up with the development speed of novel wall sheet material, the screw that such as existing body of wall and keel are fixed is in assembly process, the head of a nail is not easy to sink within wall board, nut often twists off phenomenon, need the power increase of electric tool in addition, efficiency is also very slow, chief reason is that existing screw neck is level and smooth, need by very large pressure, materials for wall compression or the crushing head of a nail just can be sunk within wall board.
Model utility content
The purpose of this utility model is the above-mentioned technical problem solving prior art existence, provides a kind of Novel precast floor slab.
The technical solution adopted in the utility model is:
The tapping screw that body of wall is connected with Steel Joist, comprises the head of a nail 1, nail body 2, nail tail 3, it is characterized in that: described nail body 2 is with fine thread, described nail tail 3 is with cutting edge, the described head of a nail 1 is bell mouth shape, and end arranges cross deep gouge 11, and neck arranges several grinding grains 12.
Further, the shape that described grinding grain 12 protrudes from neck is triangular pyramidal.
Compared with prior art, the utility model neck arranges several grinding grains, when grinding grain rotates with the head of a nail, wall board surfacing is become powder and takes out of, the head of a nail is easy to sink within wall board, efficiency is high, and required electric tool power is little, there will not be nut often to twist off phenomenon.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the cutaway view Amplified image at A-A place in Fig. 1.
Embodiment
See accompanying drawing, the tapping screw that a kind of body of wall is connected with Steel Joist, the head of a nail 1, nail body 2, nail tail 3, described nail body 2 is with fine thread, and described nail tail 3 is with cutting edge, and the described head of a nail 1 is bell mouth shape, end arranges cross deep gouge 11, and neck arranges several grinding grains 12.The shape that described grinding grain 12 protrudes from neck is triangular pyramidal.
Claims (2)
1. the tapping screw that is connected with Steel Joist of a body of wall, comprise the head of a nail (1), nail body (2), nail tail (3), it is characterized in that: described nail body (2) is with fine thread, described nail tail (3) is with cutting edge, the described head of a nail (1) is bell mouth shape, end arranges cross deep gouge (11), and neck arranges several grinding grains (12).
2. the tapping screw that is connected with Steel Joist of a kind of body of wall according to claim 1, is characterized in that: the shape that described grinding grain (12) protrudes from neck is triangular pyramidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924990.8U CN205136295U (en) | 2015-11-19 | 2015-11-19 | Self -tapping screw that wall body and steel joist are connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924990.8U CN205136295U (en) | 2015-11-19 | 2015-11-19 | Self -tapping screw that wall body and steel joist are connected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136295U true CN205136295U (en) | 2016-04-06 |
Family
ID=55622093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520924990.8U Expired - Fee Related CN205136295U (en) | 2015-11-19 | 2015-11-19 | Self -tapping screw that wall body and steel joist are connected |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768145B (en) * | 2017-11-03 | 2022-06-21 | 美商希爾曼集團公司 | Screw-type fastener |
-
2015
- 2015-11-19 CN CN201520924990.8U patent/CN205136295U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768145B (en) * | 2017-11-03 | 2022-06-21 | 美商希爾曼集團公司 | Screw-type fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |