CN201443551U - Inner pantogonal quincunx screw - Google Patents
Inner pantogonal quincunx screw Download PDFInfo
- Publication number
- CN201443551U CN201443551U CN2009200294601U CN200920029460U CN201443551U CN 201443551 U CN201443551 U CN 201443551U CN 2009200294601 U CN2009200294601 U CN 2009200294601U CN 200920029460 U CN200920029460 U CN 200920029460U CN 201443551 U CN201443551 U CN 201443551U
- Authority
- CN
- China
- Prior art keywords
- pantogonal
- quincunx
- groove
- head
- screw
- 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
Links
Images
Landscapes
- Milling Processes (AREA)
Abstract
An inner pantogonal quincunx screw belongs to a fastener, which comprises an outer screw thread handle portion and a head portion, wherein the top end of the head portion is provided with an inner pantogonal groove, and each angle of the inner pantogonal groove is a reversed circle, and each side of the inner pantogonal groove is a circular arc which is inwards bent, thereby forming a quincunx shape. The head portion is one of a pan head, or a semi-circle head or a cylindrical head. The groove side and the groove bottom of the inner pantogonal groove are vertical, which are convenient for inserting and rotating a special-purpose outer pantogonal quincunx spanner better. The inner pantogonal quincunx screw can only be matched with the outer pantogonal quincunx spanner which is specially manufactured and is matched with the quincunx inner pantogonal groove to assemble and disassemble, a normal screw knife comprises a straight screw knife equal rotating tool which can not be rotated, a normal outer pantogonal spanner can not be inserted and assembled and disassembled, and the reliability is higher. The inner pantogonal quincunx screw can be widely applied in public facilities as outdoor body builders and the like, and prevents others from disassembling.
Description
Technical field
The utility model belongs to technical field of fastening, more particularly relates to the design improvement of the quincunx screw of Nei Wujiao.
Background technique
The interior pentagon groove of tradition inner pentagon screw is regular pentagon.Its advantage is to use special-purpose outer five jiaos of spanners to cooperate mounting or dismounting, and common spiral shell cutter with the exception of this etc. revolves tool then can't be tightened or back out.This has just limited dismounting or destruction to the communal facilitys such as outdoor fitness equipments of using this inner pentagon screw.
But, because its bight is more sharp-pointed, uses in-line spiral shell cutter to insert between its alternate two jiaos and pin, when increased force will is rotated again, also inner pentagon screw may be pulled down.In other words, this structure is still reliable inadequately.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of interior five jiaos of quincunx screws are provided.It can only use special making, with the quincunx spanner rotation of the Wai Wujiao that cooperates of five chamfered grooves mounting or dismounting in it is quincunx, common spiral shell cutter comprises that in-line spiral shell cutter etc. revolves tool and is difficult to its turn, common five jiaos of spanners outward all can not insert mounting or dismounting, reliability is higher.
In order to achieve the above object, the utility model comprises outside thread shank and head, and its apical head has interior pentagon groove, but the equal rounding in each angle of pentagon groove in being somebody's turn to do, each limit of interior pentagon groove is aduncate circular arc.Thereby become quincunx groove.
Its head is coiled hair or one of cup head or socket cap, to adapt to different usage requirements.
The groove side of interior pentagon groove is vertical with bottom land, so that corresponding special-purpose outer five jiaos of quincunx spanners insert the cooperation turn better.
Task of the present utility model comes to this and finishes.
The quincunx spanner cooperation of the Wai Wujiao mounting or dismounting that the utility model can only use special making, cooperate with its quincunx interior five chamfered grooves, common spiral shell cutter comprises that in-line spiral shell cutter etc. revolves tool and is difficult to its turn, common outer five jiaos of spanners all can not insert mounting or dismounting, and reliability is higher.Can be widely used in preventing that other people from dismantling in the communal facilitys such as outdoor fitness equipments.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is its sectional drawing.
Fig. 3 is its end view.
Embodiment
Embodiment 1.Five jiaos of quincunx screws in a kind of are as Fig. 1～shown in Figure 3.Comprise outside thread shank 1 and head 2, its head 2 tops have interior pentagon groove 3.But each bight 4 equal rounding of pentagon groove 3 in being somebody's turn to do, each limit 8 of interior pentagon groove 3 is aduncate circular arc.Thereby become quincunx.That is to say that each bight 4 constitutes by roundlet arc 5.
Its head 2 is a coiled hair.The groove side 6 of interior pentagon groove 3 is vertical with bottom land 7, so that corresponding special-purpose outer five jiaos of quincunx spanners insert turn better.
Embodiment 1 can only use special making, cooperate mounting or dismounting with the quincunx spanner of the Wai Wujiao that cooperates of five chamfered grooves in it is quincunx, and common spiral shell cutter comprises that in-line spiral shell cutter etc. revolves tool and is difficult to its turn, and common five jiaos of spanners outward all can not insert mounting or dismounting, and reliability is higher.Can be widely used in preventing that other people from dismantling in the communal facilitys such as outdoor fitness equipments.
Claims (3)
1. five jiaos of quincunx screws in a kind comprise outside thread shank and head, and its apical head has interior pentagon groove, it is characterized in that the equal rounding in each angle of pentagon groove in this, and each limit of interior pentagon groove is aduncate circular arc.
2. according to the described interior five jiaos of quincunx screws of claim 1, it is characterized in that its head is coiled hair or one of cup head or socket cap.
3. according to claim 1 or 2 described interior five jiaos of quincunx screws, it is characterized in that the groove side of said interior pentagon groove is vertical with bottom land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200294601U CN201443551U (en) | 2009-07-14 | 2009-07-14 | Inner pantogonal quincunx screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200294601U CN201443551U (en) | 2009-07-14 | 2009-07-14 | Inner pantogonal quincunx screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443551U true CN201443551U (en) | 2010-04-28 |
Family
ID=42548228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200294601U Expired - Fee Related CN201443551U (en) | 2009-07-14 | 2009-07-14 | Inner pantogonal quincunx screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701568A (en) * | 2017-06-30 | 2018-02-16 | 中国航空工业标准件制造有限责任公司 | Male ends twisting imprints |
| CN109915455A (en) * | 2019-03-28 | 2019-06-21 | 超捷紧固系统(上海)股份有限公司 | A kind of antitheft driver slot of star and driver and its manufacturing method |
-
2009
- 2009-07-14 CN CN2009200294601U patent/CN201443551U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701568A (en) * | 2017-06-30 | 2018-02-16 | 中国航空工业标准件制造有限责任公司 | Male ends twisting imprints |
| CN109915455A (en) * | 2019-03-28 | 2019-06-21 | 超捷紧固系统(上海)股份有限公司 | A kind of antitheft driver slot of star and driver and its manufacturing method |
| CN109915455B (en) * | 2019-03-28 | 2023-10-20 | 超捷紧固系统(上海)股份有限公司 | Combined device with screw body and screwing tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202718994U (en) | Combination of positioning pin and positioning cap | |
| EP3733984B1 (en) | Double-acting tamper-resistant aerator and aerator system | |
| CN201443551U (en) | Inner pantogonal quincunx screw | |
| JP6941371B2 (en) | Safety device | |
| EP2014934A3 (en) | Lock nut | |
| CN217029523U (en) | Connecting assembly and connecting system | |
| CN109340238A (en) | A kind of anti-theft bolt | |
| CN201443552U (en) | Inner pantogonal special-shaped screw | |
| CN205690470U (en) | Connection structure convenient to dismouting of range hood oil net | |
| US20140060277A1 (en) | Punch with a rotating head | |
| TWM464548U (en) | Anti-shedding bolt set | |
| CN206079340U (en) | Ornament buckle structure | |
| CN113931912A (en) | Fastening assembly | |
| CN205928404U (en) | Multifunctional wrench | |
| CN206324750U (en) | A kind of broom of angle rotatable | |
| CN206053558U (en) | Door locking handle assembly | |
| CN201664232U (en) | Main-auxiliary rivet type free handle | |
| CN204221763U (en) | Instrument sucker disk seat | |
| WO2018053929A1 (en) | Universal socket ratchet wrench | |
| CN202100581U (en) | Hollow bolt | |
| CN203579481U (en) | Internal hexagonal wrench | |
| CN208744664U (en) | Ratchet spanner | |
| CN202269822U (en) | Convenient chopsticks and spoon | |
| KR200449830Y1 (en) | A Fixing article for the multi-edge tool | |
| TWM449663U (en) | Structural improvement of socket adapter |
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: 20100428 Termination date: 20120714 |