CN2628786Y - Safety screw or screw-bolt and special spanner thereof - Google Patents
Safety screw or screw-bolt and special spanner thereof Download PDFInfo
- Publication number
- CN2628786Y CN2628786Y CN 03226617 CN03226617U CN2628786Y CN 2628786 Y CN2628786 Y CN 2628786Y CN 03226617 CN03226617 CN 03226617 CN 03226617 U CN03226617 U CN 03226617U CN 2628786 Y CN2628786 Y CN 2628786Y
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- China
- Prior art keywords
- bolt
- screw
- utility
- forehead
- 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 safety bolt, which is composed of a forehead and a pole. A pentagon scoop channel for the assembling and dismantling is positioned at the center of a forehead end surface. The forehead of a bolt or a bolt head can be a cylinder, a semicircle or a cone shape, also can be a holding screw without the forehead, and only includes a full thread pole, a pentagon scoop channel is provided at the center of the full thread pole surface. The utility model simultaneously provides with a special-purpose spanner corresponding with the above bolt. The forehead of the spanner is provided with a pentagon bulge matching with the scoop channel of the bolt or the bolt head. The utility model can effectively restrain the disassembly of the common tools to the special-purpose bolts, thus playing a great role in safety and security. The safety bolt can be widely used in the outdoor equipment installment and the connection fastening, also in the connection of the mechanical device important parts, thereby realizing the high security equipment with low cost.
Description
Technical field
The utility model relates to fastening piece and fastened tools, relates in particular to a kind of safety screw or bolt and special-purpose spanner thereof.
Background technique
Connect or fastening needs for satisfying all kinds of machinery equipment parts at present, the general threaded fastener that adopts national Specification, these threaded fasteners have versatility, and tightness is good, can adopt Allen wrench or bottle opener to mount and dismount easily.For avoiding bolt head to be exposed to outside the body or convenient limited place is fastenedly connected in the space, socket head screw or bolt are widely used, these socket head screws or bolt adopt inner hexagon spanner when mounting or dismounting, do not take too many space, relatively flexibly.For satisfying different application needs, socket head screw or bolt have many types, as hexagon socket cap head screw, interior hexagonal Cock screw, interior hexagonal pan head screw, hexagon socket countersunk flat cap head screw etc.Because these fastening pieces all adopt general interior hexagonal, therefore, be easy to dismounting with general utility tool, like this, for being exposed to some open-air facilities, be easy to be disassembled and steal, and for the key position that influences performance or safety in some equipment, effectively the dismounting easily of limited subscriber is easy to generate accident.
The model utility content
Technical problem to be solved in the utility model is: overcome the deficiency that existing socket head screw or bolt are easily dismantled by general utility tool, a kind of fastening piece and spanner of special use are provided, effectively limit the easily dismounting of general utility tool, thereby play safe and antitheft effect it.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to be:
This safety screw or bolt comprise head and bar portion, and described head end center is provided with the groove of mounting or dismounting usefulness, and it is characterized in that: described groove is a regular pentagon.
Described head is cylindrical, semicircle or taper.
A kind of safe Cock screw comprises Full Thread FT bar portion, and described Full Thread FT bar end surface center is provided with the groove of mounting or dismounting usefulness, and it is characterized in that: described groove is a regular pentagon.
With above-mentioned bolt, the corresponding special spanner of screw, Wrench head is provided with and screw or the corresponding convex portion of bolt end face groove, and it is characterized in that: described convex portion cross section is a regular pentagon.
Described spanner is that the bar at right angle forms by bending, and described rod end surface is a regular pentagon.
The beneficial effects of the utility model are: the utility model provides a kind of bolt, screw and corresponding special spanner of high security, can effectively limit the easily dismounting of general utility tool to these bolts, screw, thereby play safe and antitheft effect.The utility model applicable to the installation of outdoor equipment be connected fasteningly, also be applicable to the connection of machinery vitals, realized the high security of equipment with lower cost.
Description of drawings
Fig. 1 is the utility model fillister head screw structural representation;
Fig. 2 is Fig. 1 plan view;
Fig. 3 is the utility model special spanner structural representation;
Fig. 4 is the utility model Cock screw structural representation;
Fig. 5 is Fig. 4 plan view.
Embodiment
With embodiment the utility model is described in further detail with reference to the accompanying drawings below:
Be the utility model embodiment one as depicted in figs. 1 and 2, fillister head screw 10 comprises head 20 and bar portion 30, and head 20 end face centers are provided with the groove 21 of mounting or dismounting usefulness, and groove 21 is a regular pentagon.Owing to adopt regular pentagon; therefore; all can't carry out dismounting effectively with common socket head screw spanner, cross-head screwdriver or a word bottle opener; play the safety protection effect effectively; the equipment in the open air that makes is difficult for being dismantled easily and playing antitheft effect, and for the key component in some equipment, as relate to safety and the component that influence performance; do not allow the random dismounting of user, played protective action.
For fillister head screw 10 is dismantled, the utility model provides a kind of spanner of special use, as shown in Figure 2, compare with common socket head screw spanner, the cross section of the utility model spanner 40 heads and the corresponding convex portion of screw end face groove is a regular pentagon, can directly adopt the iron of regular pentagon vertically to bend back formation, vertical bar one end is shorter, and the other end is longer.
Like this, during dismounting, can grasp the end of length of spanner or a short end as required, and the other end is inserted the regular pentagon groove of screw head, turn spanner 40 assembles or dismantles.
Be illustrated in figure 3 as the utility model embodiment two, Cock screw 50 is screws of a kind of Full Thread FT, does not have head, the screw rod 51 that has only Full Thread FT, the utility model also can be applicable on the Cock screw, is provided with the groove 52 of mounting or dismounting usefulness at Full Thread FT bar portion 51 end face centers, and groove 52 is a regular pentagon.Correspondingly, the spanner of the regular pentagon head that employing is special-purpose is used for the dismounting to this Cock screw, thereby has guaranteed the Security of this Cock screw, makes it to be difficult for being pulled down easily.
Certainly, the utility model not only is applicable to fillister head screw, for the screw or the bolt of semicircle head or conical nose, is suitable for too.Technological scheme is identical with embodiment one, does not repeat them here.
The utility model applicable to the installation of outdoor equipment be connected fasteningly, also be applicable to the connection of machinery vitals, realized the high security of equipment with lower cost.
Claims (5)
1, a kind of safety screw or bolt comprise head and bar portion, and described head end center is provided with the groove of mounting or dismounting usefulness, and it is characterized in that: described groove is a regular pentagon.
2, safety screw according to claim 1 or bolt is characterized in that: described head is cylindrical, semicircle or taper.
3, a kind of safe Cock screw comprises Full Thread FT bar portion, and described Full Thread FT bar end surface center is provided with the groove of mounting or dismounting usefulness, and it is characterized in that: described groove is a regular pentagon.
4, a kind of special spanner, Wrench head are provided with and screw or the corresponding convex portion of bolt end face groove, and it is characterized in that: described convex portion cross section is a regular pentagon.
5, special spanner according to claim 4 is characterized in that: described spanner is that the bar at right angle forms by bending, and described rod end surface is a regular pentagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03226617 CN2628786Y (en) | 2003-05-30 | 2003-05-30 | Safety screw or screw-bolt and special spanner thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03226617 CN2628786Y (en) | 2003-05-30 | 2003-05-30 | Safety screw or screw-bolt and special spanner thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2628786Y true CN2628786Y (en) | 2004-07-28 |
Family
ID=34246678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03226617 Expired - Fee Related CN2628786Y (en) | 2003-05-30 | 2003-05-30 | Safety screw or screw-bolt and special spanner thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2628786Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972025A (en) * | 2016-07-01 | 2016-09-28 | 无锡欧洛普科技有限公司 | Bolt with assistant thread holes |
| CN110026889A (en) * | 2019-04-28 | 2019-07-19 | 上海新昇半导体科技有限公司 | Fixed connecting part, grinding head assembly and polissoir |
| CN114516008A (en) * | 2021-11-24 | 2022-05-20 | 中国船舶重工集团公司第七0七研究所 | Tool and method for mounting inner hexagonal set screw in small space |
-
2003
- 2003-05-30 CN CN 03226617 patent/CN2628786Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972025A (en) * | 2016-07-01 | 2016-09-28 | 无锡欧洛普科技有限公司 | Bolt with assistant thread holes |
| CN110026889A (en) * | 2019-04-28 | 2019-07-19 | 上海新昇半导体科技有限公司 | Fixed connecting part, grinding head assembly and polissoir |
| CN114516008A (en) * | 2021-11-24 | 2022-05-20 | 中国船舶重工集团公司第七0七研究所 | Tool and method for mounting inner hexagonal set screw in small space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |