CN2580054Y

CN2580054Y - Anti-pick lock

Info

Publication number: CN2580054Y
Application number: CN 02244510
Authority: CN
Inventors: 涂波
Original assignee: Individual
Current assignee: House 5 Shanghui Building No 17 Dacisi Road C
Priority date: 2002-10-24
Filing date: 2002-10-24
Publication date: 2003-10-15
Anticipated expiration: 2012-10-24

Abstract

The utility model discloses a pick-proof inserting lock which relates to a lock. The utility model comprises a lock body, a lock beam, an interlocking plate with an installing hole, a lock core arranged in the lock body, a lock tongue and a lock groove which is corresponding to the lock tongue and is arranged on the lock beam. The utility model is characterized in that the interlocking plate is formed by the combination of a lower plate and an upper plate fixedly connected to the lower part, an installing screw is arranged in an installing hole of the lower plate, and a non-return hole of which the diameter is smaller than the diameter of the head of the installing screw is arranged on the position of the upper plate opposite to the installing screw. The lock groove arranged on the lock beam is an annular groove, and the position of the lock beam, which is positioned between the upper and the lower plates, is also provided with a limiting pin which limits the lock beam to move towards the direction of the lower plate. The utility model can effectively prevent the nontechnical unlocking theft behaviors such as prizing behavior, shearing behavior, sawing behavior, etc. The lock body is difficult to disassemble from a motorcycle body to form a mark of a stolen motorcycle, and the utility model is used for matching with a motorcycle.

Description

A kind of pick-proof is torn mortise lock open

Technical field

The utility model relates to a kind of lockset, particularly a kind of mortise lock of for bicycle.

Background technology

Mortise lock is one of bicycle lockset commonly used.Main composition comprises lock body, lock bridge has the junction panel of installing hole, is located at lock core, dead bolt and the corresponding locked groove of opening on lock bridge with dead bolt in the lock body, by junction panel lock body is fixed on the car body during use, passes the vehicle wheel spoke mortise lock with lock bridge and in lock body, finish lock function.The shortcoming one of the mortise lock of this structure is that the locked groove on its lock bridge is a convex groove, the lawless person lock bridge can be pulled by force turn round the convex surface top that makes locked groove toward and push back dead bolt, and then take out lock bridge and car stolen.The 2nd, can at an easy rate lock body be separated vehicle body and do not stay the vestige of any stolen car.

The utility model content

The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, and existing mortise lock is improved, and provides a kind of lock body not separate from vehicle body, and the pick-proof that lock bridge can not be turned round from lock body is torn mortise lock open.

The pick-proof of realization the utility model purpose is torn mortise lock open and is comprised lock body, lock bridge, the junction panel that has installing hole, be located at the lock core in the lock body, dead bolt and the corresponding locked groove of opening on lock bridge with dead bolt, feature of the present utility model is that described junction panel is constituted by the upper plate that a lower plate and is fixed on the lower plate, one mounting screw is housed in the installing hole of lower plate, on the position relative of upper plate, have the retaining hole of its diameter less than mounting screw head diameter with this mounting screw, the described locked groove of opening on lock bridge is a cannelure, also is provided with the position-limit mechanism of a restriction lock bridge toward the motion of lower plate direction on described lock bridge.The retaining hole operation mounting screw that passes upper plate with screwdriver during use is fixed in lock body on the car body, inserts lock bridge and its annular lock groove is docked with dead bolt promptly finish locking.Even this moment, robber person was sawed-off with lock bridge, no matter to where to pulling the twistlock beam, dead bolt all is in all the time in the annular lock groove of lock bridge and lock bridge stumbled makes it can't pump out.Remain in the lock body lock bridge kept under the effect of dead bolt and lock body between position relationship, spacer pin on the lock bridge has limited remaining lock bridge and has broken away from junction panel together with lock body, and the head diameter of mounting screw is greater than the diameter in upper plate retaining hole, so mounting screw can not withdraw from from lock body and make lock body separate vehicle body.Thereby constitute the sign of a stolen car, robber person is feared dispose of stolen goods, then abandon the robber, the corresponding theftproof that improves car.

Compared with the aforementioned existing similar products, the utility model has the advantages that can take precautions against sled effectively, cut, inartful such as saw is unblanked the behavior of committing theft.Even lock bridge is broken or done out pellet shot from a slingshot and lock core, also being difficult to will be destroyed and the lock body of the usefulness that is difficult to continue is separated car body and constitute the sign of a stolen car, pulls and pushes licence plate than existing separate type and easily is identified more significantly and discovers and seizes.Be suitable for various bicycle, motorcycle etc. use the vehicle adapted of spoke-type wheel.

Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the A-A view of Fig. 1

Fig. 3 is the E-E view of Fig. 2

Fig. 4 is the structural representation between junction panel and the mounting screw

Fig. 5 is the C-C view of Fig. 4

Fig. 6 is the structural representation of tamper screw

Fig. 7 is the vertical view of Fig. 6

The specific embodiment

Referring to Fig. 1～5, the formation that this pick-proof is torn mortise lock open comprises lock body 1, lock bridge 5, constitute the junction panel 17 that has installing hole 11 by lower plate 3 and the upper plate 4 that is fixed on the lower plate 3, be located at lock core 18, dead bolt 13 and the corresponding annular lock groove of opening on lock bridge 12 in the lock body with dead bolt, one mounting screw 2 is housed in the installing hole of lower plate 3, on the position relative of upper plate 4, have the retaining hole 9 of its diameter, on described lock bridge, also be provided with the position-limit mechanism of a restriction lock bridge toward the motion of lower plate direction less than mounting screw head diameter with this mounting screw 2.This position-limit mechanism is that the spacer pin 6 by the position between upper and lower plate that is arranged on lock bridge constitutes in the present embodiment, the spacer pin projection surpass the lock bridge jack 19 on the lower plate 3 periphery, on the limit of the lock bridge jack 20 on the upper plate 4, offer a keyway 8 that can pass through for the spacer pin projection, even the spacer pin projection is less than the periphery of the lock bridge jack 20 on the upper plate 4.When unblanking that normally lock bridge detached lock body, the spacer pin projection can make lock bridge detach lock body via 8 in keyway.When cutting off lock bridge, removing and installing screw 2 and make lock body break away from junction panel with respect to junction panel motion and then when vehicle body breaks away from, because stumbling, the projection of spacer pin 6 is connected on the lower plate 3, in addition mounting screw 2 be limited in again can not twisting in the upper and lower plate from, thereby guaranteed that lock body can not pull down from vehicle body.Fig. 4～5 have provided the structural representation between junction panel and the mounting screw, weld upper and lower plate again after in the installing hole 11 of the lower plate of earlier mounting screw 2 being packed into.

Described position-limit mechanism also can be made of its diameter at the plate face place that is positioned at upper plate that is fixed in lock bridge sleeve 21 greater than lock bridge jack 20.When playing the spacer pin effect, also can increase the shearing-proof ability.Sleeve 21 and spacer pin 6 can possess simultaneously.

Tear ability open for further watching out for sled, described mounting screw 2 can be designed to the tamper screw that its end face symmetry offers two helicoids 16.Referring to Fig. 6,7,15 is vertical plane among the figure, and screwdriver acts on this vertical plane can be with mounting screw to being screwed into the rotation of (tightly) direction, screwdriver is acted on the helicoid 16 and skids the mounting screw of therefore can not back-outing.

Claims

1, a kind of pick-proof is torn mortise lock open, comprise lock body, lock bridge, the junction panel that has installing hole, be located at the lock core in the lock body, dead bolt and the corresponding locked groove of opening on lock bridge with dead bolt, it is characterized in that described junction panel is constituted by the upper plate that a lower plate and is fixed on the lower plate, one mounting screw is housed in the installing hole of lower plate, on the position relative of upper plate, have the retaining hole of its diameter less than mounting screw head diameter with this mounting screw, the described locked groove of opening on lock bridge is a cannelure, also is provided with the position-limit mechanism of a restriction lock bridge toward the motion of lower plate direction on described lock bridge.

2, pick-proof as claimed in claim 1 is torn mortise lock open, it is characterized in that described position-limit mechanism is made of the spacer pin of the position between upper and lower plate that is arranged on lock bridge, the projection of this spacer pin surpasses the periphery of the lock bridge jack on the lower plate, less than the periphery of the lock bridge jack on the upper plate.

3, pick-proof as claimed in claim 1 is torn mortise lock open, it is characterized in that described position-limit mechanism is made of its diameter at the plate face place that is positioned at upper plate that is fixed in lock bridge sleeve greater than the lock bridge jack.

4, pick-proof as claimed in claim 1 is torn mortise lock open, it is characterized in that described mounting screw offers the tamper screw of two helicoids for its end face symmetry.