CN201121633Y - Combined screw - Google Patents
Combined screw Download PDFInfo
- Publication number
- CN201121633Y CN201121633Y CN 200720113735 CN200720113735U CN201121633Y CN 201121633 Y CN201121633 Y CN 201121633Y CN 200720113735 CN200720113735 CN 200720113735 CN 200720113735 U CN200720113735 U CN 200720113735U CN 201121633 Y CN201121633 Y CN 201121633Y
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- CN
- China
- Prior art keywords
- screw
- hole
- thread
- tapped
- terminal
- 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 combination typed screw, including a screw head (1) used for positioning a wrench further rotating the screw, a holding screw (4) and a screw thread rod (2) fixedly connected with the screw head (1); wherein, a screw thread through-hole (5) is arranged along the axial direction of the thread rod (2) and the screw head (1); the holding screw (4) is revolved in the screw thread through-hole (5); the part of the thread through-hole (5), which is positioned in the screw head (1), is a counter bore (3) used for positioning a wrench further rotating the screw; the counter bore (3) in the screw head (1) is an internal hexagonal or an internal quadrilateral counter bore. The combination typed screw has the advantages of convenient usage and firm connection, therefore, the screw is not easy to loosen after a long-term usage.
Description
Technical field:
The utility model relates to a kind of fastening piece that is used for mechanical connection, specifically is a kind of combined type screw.
Background technique:
Screw is the fastening standard piece that generally uses in the market, and it comprises screw terminal and the threaded stem of fixedlying connected with it, hexagonal counterbore or outer-hexagonal shape in described screw terminal generally is provided with.When screw uses, in the operator can put the inner hexagon spanner that matches or adjustable spanner in the hexagonal counterbore or be placed on two corresponding sides of outer-hexagonal the action of tightening then or unscrewing.Though this screw is easy to use, it exists connection firm inadequately, the long-term defective of using the back to become flexible easily.
The model utility content:
The technical problems to be solved in the utility model is, provides a kind of easy to use, is connected firmly, the combined type screw that can not become flexible after long-term the use.
Technical solution of the present utility model is, a kind of combined type screw with following structure is provided, and it comprises screw terminal, Cock screw and the threaded stem of fixedlying connected with screw terminal; Described threaded stem and screw terminal are provided with tapped through hole along its axial direction; Described Cock screw screws in tapped through hole.
After adopting above structure, compared with prior art, the utlity model has following advantage: when screw tightening after on the connected piece, the operator can tool using such as screw-driver, by tapped through hole the Cock screw in the tapped through hole also is tightened on the connected piece, promptly Cock screw is fastened on the connected piece after passing tapped through hole.Because cooperatively interacting of screw and screw, thereby the soundness that the utility model is connected becomes stronger, is not easy to become flexible after long-term the use; And, the action that Cock screw can use common instrument such as screw-driver to tighten or unscrew, therefore, the utility model uses also very convenient.
As a kind of improvement of the present utility model, the part that described tapped through hole is positioned at screw terminal can be counterbore such as hexagonal counterbore or four jiaos of counterbores that can supply spanner location and then rotatable screw, and described screw terminal can be outer-hexagonal shape screw terminal.After adopting this improvement, the utility model just can be with spanner by counterbore with screw means or unscrew on the connected piece, thereby strengthened the convenience that the utility model uses.
As another kind of improvement the of the present utility model, the lip-deep screw thread of described threaded stem can be left hand thread, and the screw thread on the described tapped through hole inwall can be right-hand thread.Perhaps, the lip-deep screw thread of described threaded stem can be right-hand thread, and the screw thread on the described tapped through hole inwall can be left hand thread.Screw thread on the lip-deep screw thread of threaded stem and the tapped through hole inwall adopts can further strengthen cooperating of screw and Cock screw behind the different screw threads, thereby makes the performance that is connected firmly of the present utility model stronger.
Description of drawings:
Fig. 1 is not for there being the broken section structural representation of counterbore part on the utility model tapped through hole.
Fig. 2 is for there being the broken section structural representation of interior hexagonal counterbore part on the utility model tapped through hole.
Fig. 3 is the plan structure schematic representation of Fig. 2.
Embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in Figure 1, the utility model combined type screw comprises and can locate and then screw terminal 1, the Cock screw 4 of rotatable screw and the threaded stem 2 of fixedlying connected with screw terminal 1 for spanner; Described threaded stem 2 and screw terminal 1 are provided with tapped through hole 5 along its axial direction; Described Cock screw 4 screws in tapped through hole 5.Described Cock screw 4 can adopt industry interior hexagonal flush end Cock screw commonly used, interior hexagonal awl end Cock screw, fluting awl end Cock screw, fluting flush end Cock screw, interior hexagonal cylinder end clamping fixed screw, the recessed end Cock screw of interior hexagonal or the oval styletable Cock screw etc. of slotting, and the utility model Cock screw 4 is preferably interior hexagonal flush end Cock screw.Screw thread on 2 lip-deep screw threads of threaded stem described in the utility model and described tapped through hole 5 inwalls can be arranged in pairs or groups and is left hand thread and right-hand thread; Certainly, the screw thread on described threaded stem 2 lip-deep screw threads and described tapped through hole 5 inwalls also can be arranged in pairs or groups and is right-hand thread and left hand thread.
As shown in Figures 2 and 3, the part that tapped through hole 5 is positioned at screw terminal 1 in the utility model can be one can be for the counterbore 3 of spanner location and rotary screw, and counterbore 3 can be interior hexagonal counterbore or interior four jiaos of counterbores in the utility model; In addition, can be outer-hexagonal shape screw terminal for the screw terminal 1 of spanner location and then rotatable screw described in the utility model.As a kind of optimal way of the present utility model, the screw terminal 1 in the utility model is the outer-hexagonal shape screw terminal of hexagonal counterbore in the band.
Screw thread on 2 lip-deep screw threads of threaded stem described in the utility model and tapped through hole 5 inwalls is not limited to the collocation of left hand thread and right-hand thread, also is not limited to the collocation of right-hand thread and left hand thread, and they can be left hand thread simultaneously or be right-hand thread simultaneously; In addition; the shape of screw terminal 1 also is not limited to outer-hexagonal shape in the utility model; be provided with at screw terminal 1 under the situation of counterbore 3, described screw terminal 1 also can be cylindrical screw terminal, countersunk head shape, coiled hair shape or countersunk raised head shape, more than these change and all to fall into protection domain of the present utility model.
Claims (6)
1, a kind of combined type screw comprises that one can be located and then the screw terminal (1) of rotatable screw and the threaded stem (2) of fixedlying connected with screw terminal (1) for spanner, and it is characterized in that: it also comprises a Cock screw (4); Described threaded stem (2) and screw terminal (1) are provided with tapped through hole (5) along its axial direction; Described Cock screw (4) screws in tapped through hole (5).
2, combined type screw according to claim 1 is characterized in that: the part that described tapped through hole (5) is positioned at screw terminal (1) is a counterbore (3) that can supply spanner location and then rotatable screw.
3, combined type screw according to claim 2 is characterized in that: the counterbore (3) in the described screw terminal (1) is interior hexagonal counterbore or interior four jiaos of counterbores.
4, combined type screw according to claim 1 is characterized in that: described screw terminal (1) for spanner location and then rotatable screw is an outer-hexagonal shape screw terminal.
5, combined type screw according to claim 1 is characterized in that: the lip-deep screw thread of described threaded stem (2) is a left hand thread, and the screw thread on described tapped through hole (5) inwall is a right-hand thread.
6, combined type screw according to claim 1 is characterized in that: the lip-deep screw thread of described threaded stem (2) is a right-hand thread, and the screw thread on described tapped through hole (5) inwall is a left hand thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720113735 CN201121633Y (en) | 2007-08-24 | 2007-08-24 | Combined screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720113735 CN201121633Y (en) | 2007-08-24 | 2007-08-24 | Combined screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121633Y true CN201121633Y (en) | 2008-09-24 |
Family
ID=40008860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720113735 Expired - Fee Related CN201121633Y (en) | 2007-08-24 | 2007-08-24 | Combined screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121633Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915258A (en) * | 2010-08-09 | 2010-12-15 | 宁波东港紧固件制造有限公司 | Inner pentagonal screw |
| CN102777465A (en) * | 2012-08-07 | 2012-11-14 | 苏州宝强精密螺丝有限公司 | Composite bolt |
| CN101571018B (en) * | 2009-05-31 | 2013-04-10 | 劳斯伯格篷房制造（上海）有限公司 | Tent house with lockset |
| CN105090209A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Bolt easy to pull and screw |
| CN107575463A (en) * | 2017-09-15 | 2018-01-12 | 安徽唐氏螺纹紧固件有限公司 | A kind of stop screw component |
-
2007
- 2007-08-24 CN CN 200720113735 patent/CN201121633Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571018B (en) * | 2009-05-31 | 2013-04-10 | 劳斯伯格篷房制造（上海）有限公司 | Tent house with lockset |
| CN101915258A (en) * | 2010-08-09 | 2010-12-15 | 宁波东港紧固件制造有限公司 | Inner pentagonal screw |
| CN102777465A (en) * | 2012-08-07 | 2012-11-14 | 苏州宝强精密螺丝有限公司 | Composite bolt |
| CN105090209A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Bolt easy to pull and screw |
| CN107575463A (en) * | 2017-09-15 | 2018-01-12 | 安徽唐氏螺纹紧固件有限公司 | A kind of stop screw component |
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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: 20080924 Termination date: 20140824 |
|
| EXPY | Termination of patent right or utility model |