CN201827212U - Screw capable of preventing illegally opening and special screwdriver thereof - Google Patents
Screw capable of preventing illegally opening and special screwdriver thereof Download PDFInfo
- Publication number
- CN201827212U CN201827212U CN2010205387709U CN201020538770U CN201827212U CN 201827212 U CN201827212 U CN 201827212U CN 2010205387709 U CN2010205387709 U CN 2010205387709U CN 201020538770 U CN201020538770 U CN 201020538770U CN 201827212 U CN201827212 U CN 201827212U
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- screw
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Abstract
The utility model discloses a screw capable of preventing illegally opening and a special screwdriver thereof. The screw capable of preventing illegally opening is provided with a screw head and a screw rod; the top surface of the screw head is provided with an opening slot that passes in radial direction; the opening slot is internally provided with a spacing block that is parallel to the top surface of the screw head; the special screwdriver comprises a screwing rod and a holding handle; the head of the screwing rod is provided with a plurality of bulges; a concave part is formed in the plurality of bulges; the plurality of bulges are matched with the opening slot; and the concave part is matched with the spacing block. By arranging one spacing block in the opening slot, the aim of preventing the general slotted screwdrivers and cross point screwdrivers from opening the screw can be realized; and the special screwdriver matched with the opening slot and the spacing block can meet the opening on the screw under normal situation.
Description
Technical field
The utility model relates to a kind of fastening piece and opens the special tool of this fastening piece, particularly relates to a kind of screw and Full dog point socket set cutter thereof of illegally opening or preventing to open by mistake of preventing.
Background technique
Screw is widely used in each field as a kind of standard fasteners commonly used.But the use at some specific occasion standard fasteners brings some unnecessary troubles on the contrary.As electrical equipment or the mechanical device that does not allow the user to open privately at some, adopt some special-purpose fastening pieces can be antitheft or prevent the generation of some fortuitous events.Notification number is that the Chinese utility model patent of CN2302364Y discloses a kind of anti-theft bolt and and the supporting Full dog point socket set cutter of anti-theft bolt.It is made of screw rod, bolt head.The plane is provided with two symmetrical circular holes on bolt head.Its Full dog point socket set cutter is made of handle, bar, the head of described bar be provided with two with the anti-theft bolt head on the corresponding projection of two circular holes.
Notification number is that the Chinese utility model patent of CN201401406Y discloses a kind of anti-theft screw, comprise screw head and threaded screw rod, screw head is provided with circular groove, is provided with projection in circular groove, and the side of described projection has two corner angle at least; A kind of special rotating tool that is used for described anti-theft screw, comprise handle and swing arm, front end at swing arm is provided with groove, and the shape of the projection that is provided with on the shape of described groove and the screw head is complementary, the equal diameters of circular groove on the outer diameter of described swing arm and the screw head.The screw head of this model utility screw does not have the straight groove or the cross recess of conventional screw, and screw head integral body is rounded, general straight screwdriver, Phillips screwdriver, pliers or spanner etc. will go spin-up, and it does not all have Point of Strength, can't be with its spin-up, like this, effectively prevent the phenomenon that other people arbitrarily dismantle or open without approval, played antitheft effect; Simultaneously, open this anti-theft screw for convenience, this model utility also is furnished with the special-purpose tool that revolves.
Above-mentioned two technological schemes are preventing that illegally opening the screw tool has certain effect, but because its structure is too complicated, when not having special rotating tool when running into urgency, can't open screw.The purpose of this utility model is to provide the Full dog point socket set cutter illegally opening screw and be used to open this screw of preventing of another kind of form, it can prevent the illegal unlatching of screw to a certain extent, but in case of emergency, can be by conventional screw-driver be transformed, be used to open described screw, to satisfy the specific demand under the particular case.
The model utility content
The utility model main purpose is for fear of adopting the unnecessary trouble that standard fasteners brought in some specific occasions, prevents that some devices are prevented from illegally opening or in some generations that does not allow electrical equipment that the user opens privately or mechanical device to be opened situation by accident.A kind of prevent from illegally to open screw and Full dog point socket set cutter thereof are provided, satisfy certain specific demand.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind ofly prevent from illegally to open screw, be provided with screw head and screw rod; Be provided with opening groove at described screw head end face, described opening groove is radially and passes, and is provided with spacer block in the described opening groove, and described spacer block end face flushes with the screw head end face.By a spacer block is set, can prevent effectively that general straight screwdriver and Phillips screwdriver from opening screw of the present utility model in opening groove.
As a kind of optimal technical scheme of the utility model, described spacer block is arranged on the centre of described opening groove.When the centre of described spacer block, make processing convenient at described opening groove.
As a kind of optimal technical scheme of the utility model, described opening groove is a cross recess.As another kind of scheme, described opening groove is a straight groove.Straight groove and cross recess are the common structures of standard fasteners opening groove, by the setting of this structure, be convenient to by conventional screw-driver is transformed, and with reply unlatching problem in emergency circumstances,
A kind ofly be used for the described Full dog point socket set cutter that prevents from illegally to open screw, comprise swing arm and lever; Be provided with some projectioies at described swing arm head, in the middle of described some projectioies, form a depression; Described some projectioies and described opening groove are adaptive, and described depression and described projection are adaptive.By the Full dog point socket set cutter adaptive, satisfy under the normal condition unlatching to the utility model screw with described opening groove.
The Full dog point socket set cutter that prevents illegally to open screw and be used to open this screw, it can prevent the illegal unlatching of screw to a certain extent, but in case of emergency, can be by conventional screw-driver be simply transformed, be used to open described screw, satisfy the specific demand under the particular case.
Description of drawings
Fig. 1 is for preventing from illegally to open the structural representation of screw among the utility model embodiment 1, its opening groove is a straight groove;
Fig. 2 is the structural representation of special-purpose screw-driver among the utility model embodiment 1;
Fig. 3 is the zoomed-in view at I place among Fig. 2;
Fig. 4 is for preventing from illegally to open the structural representation of screw among the utility model embodiment 2, its opening groove is a cross recess;
Fig. 5 is the structural representation of special-purpose screw-driver among the utility model embodiment 2;
Fig. 6 is the zoomed-in view at II place among Fig. 5;
Wherein, screw head 1, opening groove 11, spacer block 12, screw rod 2, lever 3, swing arm 4, swing arm head 5, head projection 51, depression 52.
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment
Referring to Fig. 1, a kind ofly prevent from illegally to open screw, be provided with screw head 1 and screw rod 2; Be provided with an opening groove 11 at described screw head 1 end face, the straight groove of described opening groove 11 for radially passing, be provided with a spacer block 12 in described opening groove 11 neutral positions, described spacer block 12 is the cylndrical surface with described opening groove 11 adjacents, and its end face flushes with described screw head end face.
Referring to Fig. 2 and Fig. 3, a kind ofly be used for the described Full dog point socket set cutter that prevents from illegally to open screw, comprise swing arm 4 and lever 3; Be provided with a swing arm head 5 at described swing arm 4, be provided with two head projectioies 51 on described swing arm head 5 end faces, described two head projectioies 51 are radially in-line, and align respectively with outside the circumference of described swing arm head 5; Described two heads projection 51 and described opening groove 11 are adaptive; Form a depression 52 between described two head projectioies 51; Described depression 52 is the cylndrical surface with described two heads projection, 51 adjacents, and is adaptive with described spacer block 12.
By a spacer block 12 is set, can prevent effectively that general straight screwdriver from opening screw of the present utility model in opening groove 11.But in case of emergency, can be temporarily by conventional straight screwdriver be transformed, at the adaptive breach of one of centre processing and described spacer block 12, screw of the present utility model is opened, make the application that prevents from illegally to open screw of the present utility model more flexible and practical.
Referring to Fig. 4, in embodiment 2 of the present utility model, prevent from illegally to open screw and be provided with screw head 1 and screw rod 2; Described opening groove 11 is a cross recess, and described spacer block 12 and described opening groove 11 four adjacent faces are the cylndrical surface still, and are arranged in the middle of the cross recessed; Referring to Fig. 5 and Fig. 6, the described end face that is used for the Full dog point socket set cutter swing arm head 5 of described illegal unlatching screw is provided with four head projectioies 51, along the circumference uniform distribution of swing arm head 5, forms the depression 52 adaptive with described spacer block 12 in the middle of it.
Be provided with by cross recessed opening groove 11, make screw of the present utility model stressed more even in turning, torsion is bigger.But in case of emergency, equally can be temporarily by conventional straight screwdriver is transformed, at the adaptive breach of one of centre processing and described spacer block 12, open.
The foregoing description is in order more to be expressly understood the utility model, as a kind of restriction to the utility model right, under the prerequisite that does not break away from the utility model aim, various variations can not arranged.As, the spacer block 12 in the opening groove 11 can be arranged to depart from the neutral position, makes it to have directivity in use; Equally, described spacer block 12 can be plane etc. with described opening groove 11 adjacent surfaces, and all these will be included within the scope of this claim the conspicuous modification of described those skilled in the art.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205387709U CN201827212U (en) | 2010-09-22 | 2010-09-22 | Screw capable of preventing illegally opening and special screwdriver thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205387709U CN201827212U (en) | 2010-09-22 | 2010-09-22 | Screw capable of preventing illegally opening and special screwdriver thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827212U true CN201827212U (en) | 2011-05-11 |
Family
ID=43965751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205387709U Expired - Fee Related CN201827212U (en) | 2010-09-22 | 2010-09-22 | Screw capable of preventing illegally opening and special screwdriver thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967904A (en) * | 2014-05-12 | 2014-08-06 | 国家电网公司 | Screw special for resistance to electricity stealing and screwdriver used in cooperation with the same |
-
2010
- 2010-09-22 CN CN2010205387709U patent/CN201827212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967904A (en) * | 2014-05-12 | 2014-08-06 | 国家电网公司 | Screw special for resistance to electricity stealing and screwdriver used in cooperation with the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Taizhou City, Zhejiang Province, 317000 coastal city east gate head Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 317000, No. 188, Century Avenue, Linjiang Industrial Park, Xiaoshan District, Zhejiang, Hangzhou Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. Patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20130922 |