CN2356180Y - Bolt type anti-loose anti-unloading screw - Google Patents
Bolt type anti-loose anti-unloading screw Download PDFInfo
- Publication number
- CN2356180Y CN2356180Y CN 99202084 CN99202084U CN2356180Y CN 2356180 Y CN2356180 Y CN 2356180Y CN 99202084 CN99202084 CN 99202084 CN 99202084 U CN99202084 U CN 99202084U CN 2356180 Y CN2356180 Y CN 2356180Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- screw
- star
- shaped groove
- utility
- 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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- Fishing Rods (AREA)
Abstract
The utility model relates to a bolt type anti-loosening anti-unloading screw, relating to a screw bolt fastener. The utility model is characterized in that one strip of a star-shaped groove whose groove bottom forms an arc cylindrical surface shape is opened at the longitudinal direction of the screw rod in a shallow to deep mode along the direction of screwing in of a screw thread, the design of a star-shaped groove structure is used by matching with a proper dimensional cylindrical plug pin, when the screw rod screws to the screwing in screw nut, the plug pin exists in the deep part of the star-shaped groove, and blocking is not generated to screwing in of the screw rod; when the screw rod screws out in an opposite direction, the plug pin is squeezed and rolled to the shallow part of the star-shaped groove, and the purpose of anti-loosening and anti-unloading screw can be achieved. The utility model has the advantages of simple structure, easy installation and process, and low cost.
Description
The utility model is to belong to antitheft chek bolt fastener areas, particularly a kind of bolt-type blocking and antiunloading screw rod.
In order to prevent that the nut after fastening from coming off, many methods are arranged in the prior art: as with the terminal hacking of screw rod, the screw rod fluting is put into pin, and screw rod is divided into two-section, the nut profile changes various abnormal shapes into from common hexagon, also has nail gun, presses the oxygen agent that nut is waited indefinitely admittedly.Said method is no lack of successful examples is arranged, but concludes, and all exists to be difficult for processing, is difficult for tightening up, and is difficult for installing, and cost is too high, defectives such as processed complex.
The purpose of this utility model is at above-mentioned shortcoming, and when providing a kind of and cylinder plugs to be used, the forward that both can realize not influencing nut screws in to be tightened, and can realize the bolt-type blocking and antiunloading screw rod that stops nut oppositely to screw out again.
The technical solution of the utility model be screw rod vertically open an edge be threaded into direction from shallow to deep bottom land design side for cambered inwards circular arc cylinder
Connected in star, the cross-sectional structure of promptly offering groove on the screw rod is
Shape.On the screw rod
The structure of connected in star and the cylinder plugs of appropriate size are used, and when the screw rod forward screwed in nut screwing clamping, latch was in
The deep of shape groove can not produce the screw-in of screw rod and hinder; When screw rod oppositely screws out, because
The design along hand of spiral concave circular arc cylinder bottom land from shallow to deep of shape groove makes cylinder plugs roll to the superficial part of groove gradually under the effect of frictional force, and latch is pressed against
The superficial part of shape groove, last locked bolt reaches the backward hold nut, prevents the purpose of nut loosening.
The utility model has the advantages that simple in structurely, process very conveniently, greatly reduce cost of investment and processing cost; During installation, the forward that does not promptly influence screw rod screws in, and can accomplish locked screw rod when screw rod oppositely screws out again, reaches locking, anti-purpose of unloading, and installs very convenient.
Below in conjunction with drawings and Examples the utility model is described in further detail
Fig. 1 is the worm's eye view of the utility model bolt-type blocking and antiunloading screw rod
Fig. 2 is the plan view of the utility model bolt-type blocking and antiunloading screw rod
1 is screw rod among the figure, and 2 are
Connected in star, 3 is bottom land.
As shown in the figure: the locking anti-screw rod that lacks of this bolt-type is characterized in that being threaded into direction bottom land 3 from shallow to deep for the concave circular arc cylinder on the edge of vertically opening of screw rod 1
Connected in star 2.
Claims (1)
1 one kinds of bolt-type blocking and antiunloading screw rods is characterized in that being threaded into direction bottom land 3 from shallow to deep for the concave circular arc cylinder on the edge that vertically has of screw rod 1
Connected in star 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99202084 CN2356180Y (en) | 1999-01-21 | 1999-01-21 | Bolt type anti-loose anti-unloading screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99202084 CN2356180Y (en) | 1999-01-21 | 1999-01-21 | Bolt type anti-loose anti-unloading screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356180Y true CN2356180Y (en) | 1999-12-29 |
Family
ID=33997648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99202084 Expired - Fee Related CN2356180Y (en) | 1999-01-21 | 1999-01-21 | Bolt type anti-loose anti-unloading screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356180Y (en) |
-
1999
- 1999-01-21 CN CN 99202084 patent/CN2356180Y/en not_active Expired - Fee Related
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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 |