CN201786873U - Screw with full-thread screw rod - Google Patents
Screw with full-thread screw rod Download PDFInfo
- Publication number
- CN201786873U CN201786873U CN2010202901902U CN201020290190U CN201786873U CN 201786873 U CN201786873 U CN 201786873U CN 2010202901902 U CN2010202901902 U CN 2010202901902U CN 201020290190 U CN201020290190 U CN 201020290190U CN 201786873 U CN201786873 U CN 201786873U
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- CN
- China
- Prior art keywords
- screw
- spiral shell
- shell head
- screw rod
- screw head
- 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 discloses a screw with a full-thread screw rod, which comprises the screw rod (1) and a screw head (2), wherein the screw rod (1) adopts the full-thread screw rod; the screw head (2) adopts a cylindrical screw head; an inner pentagonal counter bore (3) is formed on the outer end surface of the screw head (2); the inner pentagonal counter bore (3) and the screw head (2) are coaxially arranged; the screw further comprises a cylindrical gasket (4) arranged at the inner end of the screw head (2); the cylindrical gasket (4) and the screw head (2) adopt an integrated structure; and the external diameter of the cylindrical gasket (4) is larger than that of the screw head (2). The screw provided by the utility model has the advantages as follow: the screw is not easy to skid while being tightened or loosened with a wrench; the surface of a product is less susceptible to be crushed when the product is fastened; and the installation efficiency can be improved.
Description
Technical field
The utility model relates to a kind of fastening piece, specifically is a kind of Full Thread FT bar screw.
Background technique
The structure of full thread screw generally comprises the screw rod of spiral shell head and Full Thread FT, the full thread screw that generally uses generally is the standard piece of fastening piece at present, the spiral shell head is generally hexagonal spiral shell head or is provided with the cylindric spiral shell head of interior hexagonal counterbore, when tightening by adjustable spanner or inner hexagon spanner or unclamping screw, because the area of contact of spanner and spiral shell head is little, excessive or overexert and will damage the outer corner angle or the inside corner of spiral shell head if exert oneself, the spanner skidding appears.In addition, with the fastening product of screw the time, need on screw rod, overlap a pad usually, be used for preventing that the surface of fastened product is not by the compressive strain of spiral shell head.This pad and screw rod are separated, in use, earlier pad to be enclosed within on the screw rod, and then fastening product.If the staff forgets the cover pad because of carelessness, will in fastening product, weigh product surface wounded so; In addition, when high-lift operation, the staff takes spanner on the other hand, also wants the socket pad in addition, staff's high-lift operation is bothered very much, the inefficiency of installation.
The model utility content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, provides a kind of being difficult for when screwing up with a wrench or unclamp screw to skid, and is difficult for damaging by pressure product surface during fastening product, and can improves the Full Thread FT bar screw of installation efficiency.
Technical solution of the present utility model is, a kind of Full Thread FT bar screw with following structure is provided: it comprises screw rod and spiral shell head, described screw rod is a full flight screw, described spiral shell head is cylindric spiral shell head, the exterior edge face of described spiral shell head is provided with interior five jiaos of counterbores, and interior five jiaos of counterbores and spiral shell head coaxial line, it also comprises a cylindrical spacer that is arranged on spiral shell head the inner, described cylindrical spacer and the spiral shell head structure that is formed in one, and the outside dimension of cylindrical spacer is greater than the outside dimension of spiral shell head.
After adopting above structure, the utility model Full Thread FT bar screw compared with prior art, have the following advantages: the tightening or unclamp all and will implement of this screw by special interior five jiaos of spanners, the area of contact of interior five jiaos of spanners and interior five jiaos of counterbores is big, is difficult for skidding; The inner of spiral shell head is connected with cylindrical spacer and cylindric pad and the spiral shell head structure that is formed in one; when completed knocked down products; socket pad again; improved packaging efficiency like this; simultaneously; cylindrical spacer has increased the area of contact of spiral shell head and product surface, makes the surface of product be difficult for being damaged by pressure by the spiral shell head, has well protected the surface of product.
Description of drawings
Fig. 1 is the structural representation of the utility model Full Thread FT bar screw.
Fig. 2 is the right TV structure schematic representation of the utility model Full Thread FT bar screw.
As shown in the figure:
1, screw rod, 2, the spiral shell head, 3, interior five jiaos of counterbores, 4, cylindrical spacer.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1 and Figure 2.
A kind of Full Thread FT bar of the utility model screw, it comprises screw rod 1 and spiral shell head 2, described screw rod 1 is a full flight screw, described spiral shell head 2 is cylindric spiral shell head, the exterior edge face of described spiral shell head 2 is provided with interior five jiaos of counterbores 3, and interior five jiaos of counterbores 3 and spiral shell head 2 coaxial lines, and it also comprises a cylindrical spacer 4 that is arranged on spiral shell head 2 the inners, described cylindrical spacer 4 and spiral shell head 2 structure that is formed in one, and the outside dimension of cylindrical spacer 4 is greater than the outside dimension of spiral shell head 2.
Claims (1)
1. Full Thread FT bar screw, it comprises screw rod (1) and spiral shell head (2), it is characterized in that: described screw rod (1) is a full flight screw, described spiral shell head (2) is cylindric spiral shell head, the exterior edge face of described spiral shell head (2) is provided with interior five jiaos of counterbores (3), and interior five jiaos of counterbores (3) and spiral shell head (2) coaxial line, it comprises that also is arranged on the inner cylindrical spacer (4) of spiral shell head (2), described cylindrical spacer (4) and spiral shell head (2) structure that is formed in one, and the outside dimension of cylindrical spacer (4) is greater than the outside dimension of spiral shell head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202901902U CN201786873U (en) | 2010-08-09 | 2010-08-09 | Screw with full-thread screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202901902U CN201786873U (en) | 2010-08-09 | 2010-08-09 | Screw with full-thread screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786873U true CN201786873U (en) | 2011-04-06 |
Family
ID=43818837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202901902U Expired - Fee Related CN201786873U (en) | 2010-08-09 | 2010-08-09 | Screw with full-thread screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421290A (en) * | 2013-08-22 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Explosion-proof screw and machining process of explosion-proof screw |
-
2010
- 2010-08-09 CN CN2010202901902U patent/CN201786873U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421290A (en) * | 2013-08-22 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Explosion-proof screw and machining process of explosion-proof screw |
| CN104421290B (en) * | 2013-08-22 | 2016-10-05 | 广东美的厨房电器制造有限公司 | A kind of explosion-proof screw and the processing technique of this explosion-proof screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130809 |