CN207470580U - countersunk fastener - Google Patents
countersunk fastener Download PDFInfo
- Publication number
- CN207470580U CN207470580U CN201721336221.1U CN201721336221U CN207470580U CN 207470580 U CN207470580 U CN 207470580U CN 201721336221 U CN201721336221 U CN 201721336221U CN 207470580 U CN207470580 U CN 207470580U
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- CN
- China
- Prior art keywords
- nut
- word driver
- millimeters
- utility
- model
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- 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.)
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Abstract
The utility model discloses a kind of countersunk fasteners, which is characterized in that including outer profile in the nut of cone, which is 60 degree of cones or is 90 degree of cones；The nut includes integrally formed column and the bullet for being set to column side；It is 2 to 8 millimeters that nut circular conical surface path D designs its value range according to different size；It is 1.4 to 3 millimeters that the nut thickness A designs its value range according to different size；The nut is provided with a word driver slot, and word driver slot well width B is 1.5 millimeters, and word driver groove depth C is 0.5 millimeter.Compared with prior art, the beneficial effects of the utility model are：Union piece surface is fully embedded, surface reassembles other parts and is not easy to form interference.Cost is suitable with plain nut after mass production, will not increase cost.This structure design contributes to the non-uniform phenomenon of load between improvement ridge.
Description
Technical field
The utility model is related to component of machine, specially a kind of countersunk fastener.
Background technology
It is standardized element widely used in manufacturing industry and commodity product to be threadedly coupled with the part of fastening, because its
Connection is reliable, and can dismantle repeatedly, and part and mating tool interchangeability are good, and mass production is cheap.Existing country's mark
In the standard of accurate and many developed countries, have largely about the relevant criterion of threaded fastener, specification (ISO 1502, JB/T
192~197-2003 of 7912-1999, GB/T) it may be used.Wherein with the connection mode of bolt, screw and nut cooperation most
To be common, as the widely used hexagon socket cap head screw of stamping die industry (GB/T 70.1-2000) can with after drilling
The part cooperation of tapping for fastening purposes, can also coordinate C grades of (GB/T 41- of hex nut for relatively thin part
2000) it connects and fastens.With social development, a large amount of daily and electric consumers appearance, this kind of fastener to screw thread
It also proposed new demand.Consumer products are from the requirement of aesthetical point, it is undesirable to which bolt, screw are exposed or even raised, from function
Angle, many application scenarios, such as dismountable toy, household electrical appliances, commodity electronic product are because of a variety of causes surfacing, no
Can when having used threaded connector protrusion.Therefore, socket cap is with counterbore (GB/T 152.3-1988), countersunk head counter sink
(GB/T 152.2-1988) is also gradually widely used with hexagon socket countersunk flat cap head screw (GB/T 70.3-2000), the knife of countersunk head
Tool is also popularized and is come.But the scheme of these sunk screws and counter sink can not solve the problems, such as the interconnection of relatively thin part,
And tapping thread cannot be dismantled often because being easier to wear out failure on softer part material (such as aluminium alloy, plastics)；
It cannot solve the problems, such as exposed, the rectangular and six-sided nut (GB/T 39 of bolts and nuts protrusion of connecting pin during nut connection
41) with not solving the problems, such as this scheme in all kinds of different in nature nuts (GB/T 806 810 812 802 923 63 62).
Piece surface nut end is machined hexagon and rectangular counter sink complex process is of high cost, processes the sufficiently large circle for being put into nut
Nut also can not be fixed and be tightened to shape counter sink using driver.
The application proposes a kind of countersunk fastener for being available for scale of mass production, can preferably solve the above problems,
And the increase of cost will not be brought.
Utility model content
The purpose of this utility model is to provide a kind of countersunk fasteners for being available for scale of mass production, can be preferable
It solves the above problems, and the increase of cost will not be brought
To achieve the above object, the utility model provides following technical solution：
A kind of countersunk fastener, including outer profile in the nut of cone, which is 60 degree of cones or is
90 degree of cones；The nut includes integrally formed column and the bullet for being set to column side；The nut circular cone
It is 2 to 8 millimeters that face path D designs its value range according to different size；The nut thickness A designs its value range according to different size
It is 1.4 to 3 millimeters；The nut is provided with a word driver slot, and word driver well width B is 1.5 millimeters, the word driver groove depth
It is 0.5 millimeter to spend C.
Be further improved as the utility model, the common edge of column and bullet on the nut for arc-shaped edges or
Bevel edge.
It is further improved as the utility model, the word driver slot is in the middle part of nut body.
Process structure and dimensions selection principle：
1st, screw thread：
Generally using standard coarse thread, Standard fine thread also can be selected in nut inside thread when necessary.
2nd, nut circular conical surface path D：
It is as compact as possible and utilize installation space using the major diameter of corresponding screw thread.
3rd, nut thickness A：
To use standard coarse thread as standard, this countersunk nut should at least ensure there are 3 when being screwed with screw or bolt
The threaded engagement of helical pitch distance.Ensure standard, and with reference to hexagon thin nut (GB/T 6172.1- in national standard as bonding strength
2000) thickness of corresponding specification nut.
4th, a word driver groove depth C：
With reference to related driver actual size, and the influence to nut bonding strength is reduced as far as possible.
5th, a word driver well width B：
With reference to related driver actual size, and the influence to nut bonding strength is reduced as far as possible.
Compared with prior art, the beneficial effects of the utility model are：
1st, union piece surface is fully embedded, surface reassembles other parts and is not easy to form interference.
2nd, cost is suitable with plain nut after mass production, will not increase cost.
3rd, this structure design contributes to the non-uniform phenomenon of load between improvement ridge.
More clearly to illustrate the structure feature and effect of the utility model, come below in conjunction with the accompanying drawings with specific embodiment pair
It is described in detail.
Description of the drawings
Fig. 1 is the utility model main structure diagram；
Fig. 2 is the utility model side structure schematic view；
Fig. 3 is the utility model side structure schematic view；
Fig. 4 assembles effective structure schematic diagram for the utility model.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Please refer to attached drawing 1-4.
Embodiment, the present embodiment provides a kind of countersunk fasteners, and including outer profile in the nut 1 of cone, which is
60 degree of cones are 90 degree of cones；The nut 1 includes integrally formed column 1.2 and is set to column 1.2
The bullet 1.1 of side；
It is 2 to 8 millimeters that 1 circular conical surface path D of the nut can design its value range according to different size；The nut thickness A can
It is 1.4 to 3 millimeters to design its value range according to different size；The nut 1 includes a word driver slot, 2 groove width of word driver slot
It is 1.5 millimeters to spend B, and 2 depth C of the word driver slot is 0.5 millimeter.
It is further improved as the present embodiment, the common edge of column and bullet on the nut for arc-shaped edges or falls
The arm of angle.
It is further improved as the present embodiment, the word driver slot is in the middle part of nut body.
Process structure and dimensions selection principle：
1st, screw thread：
Generally using standard coarse thread, Standard fine thread also can be selected in nut inside thread when necessary.
2nd, nut circular conical surface path D：
It is as compact as possible and utilize installation space using the major diameter of corresponding screw thread.
3rd, nut thickness A：
To use standard coarse thread as standard, this countersunk nut should at least ensure there are 3 when being screwed with screw or bolt
The threaded engagement of helical pitch distance.Ensure standard, and with reference to hexagon thin nut (GB/T 6172.1- in national standard as bonding strength
2000) thickness of corresponding specification nut.
4th, a word driver groove depth C：
With reference to related driver actual size, and the influence to nut bonding strength is reduced as far as possible.
5th, a word driver well width B：
With reference to related driver actual size, and the influence to nut bonding strength is reduced as far as possible.
Compared with prior art, the beneficial effects of the utility model are：
1st, union piece surface is fully embedded, surface reassembles other parts and is not easy to form interference.
2nd, cost is suitable with plain nut after mass production, will not increase cost.
3rd, this structure design contributes to the non-uniform phenomenon of load between improvement ridge.
The above descriptions are merely preferred embodiments of the present invention, and not the utility model is made in any form
Limitation.Any those skilled in the art, it is all available in the case where not departing from technical solutions of the utility model ambit
The methods and technical content of the disclosure above is made technical solutions of the utility model many possible changes and modifications or is revised as
The equivalent embodiment of equivalent variations.Therefore every content without departing from technical solutions of the utility model, the shape according to the utility model
The equivalence changes that shape, construction and principle are made should all be covered by the scope of protection of the utility model.
Claims (3)
1. a kind of countersunk fastener, which is characterized in that including outer profile in the nut of cone, which is 60 degree of circles
Taper is 90 degree of cones；The nut includes integrally formed column and the bullet for being set to column side；It should
It is 2 to 8 millimeters that nut circular conical surface path D designs its value range according to different size；The nut thickness A is designed according to different size
Its value range is 1.4 to 3 millimeters；The nut is provided with a word driver slot, and word driver well width B is 1.5 millimeters, a word
Driver groove depth C is 0.5 millimeter.
2. countersunk fastener according to claim 1, which is characterized in that column and bullet on the nut it is common
Side is arc-shaped edges or bevel edge.
3. countersunk fastener according to claim 1, which is characterized in that the word driver slot is in the middle part of nut body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336221.1U CN207470580U (en) | 2017-10-17 | 2017-10-17 | countersunk fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336221.1U CN207470580U (en) | 2017-10-17 | 2017-10-17 | countersunk fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470580U true CN207470580U (en) | 2018-06-08 |
Family
ID=62266804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721336221.1U Expired - Fee Related CN207470580U (en) | 2017-10-17 | 2017-10-17 | countersunk fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470580U (en) |
-
2017
- 2017-10-17 CN CN201721336221.1U patent/CN207470580U/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: 20180608 Termination date: 20201017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |