CN201502233U - Idle pick-resistant lock - Google Patents

Abstract

The utility model discloses an idle pick-resistant lock. A key hole of a lock cylinder is arranged on the outer circle of the lock cylinder; a row of special-shaped spring plate holes is arranged inside the lock cylinder; a special-shaped spring plate and a special-shaped spring plate spring are movably arranged inside each special-shaped spring plate hole; a bump is arranged on one surface of the special-shaped spring plate; an opening groove is arranged on another surface of the special-shaped spring plate; the bump facing the key hole is fell into the key hole; a lock cylinder groove is arranged on the lock cylinder facing the opening groove; a lower clamping piece is movably arranged inside the lock cylinder groove; a copper sheathing groove is arranged on a copper sheathing facing the lock cylinder groove; an upper clamping piece is arranged inside the copper sheathing groove; the top end of the upper clamping piece exposed out of the outer circle of the copper sheathing contacts with a clamping piece spring plate arranged outside the copper sheathing; a clamping piece spring is arranged at the other end of the clamping piece spring plate; an elastic positioning mechanism for preventing the lock cylinder from arbitrarily idling is further arranged inside the copper sheathing; and a shifting sheet is connected to the tail end of the copper sheathing. The lock cylinder of the idle pick-resistant lock can not arbitrarily idle at ordinary times, but can idle when thieves open an antitheft lock by using tools such as picking needles, thereby enhancing antitheft function of an antitheft door.

Description

The idle running pick-proof lock

[technical field]

The utility model relates to a kind of theftproof lock.

[background technology]

Theftproof lock is widely used in the antitheft places of needs such as security door, but the lock cylinder structure of existing theftproof lock, pellet shot from a slingshot in its lock core is easy to be provoked with instruments such as choosing pin by the robber, thereby lock core is rotated, theftproof lock loses anti-theft feature, give the robber with opportunity, cause damage to the user.

[summary of the invention]

Problem in view of present known technology existence, the technical problems to be solved in the utility model is to be to provide a kind of lock core can arbitrarily not dally at ordinary times, and when the robber opens theftproof lock with instruments such as choosing pin, can dally, promote the idle running pick-proof lock of security door anti-theft feature.

The utility model takes following technical scheme to finish: a kind of idle running pick-proof lock, comprise lock core, copper sheathing, overcoat and plectrum, copper sheathing is rotatable to be located in the overcoat, lock core is rotatable to be located in the copper sheathing, the keyhole that lock core has is located at the lock core cylindrical, be provided with a rejection shape pellet shot from a slingshot hole in the lock core, the abnormity pellet shot from a slingshot is movably equipped with special-shaped pellet shot from a slingshot and special-shaped marble spring in the hole, the abnormity pellet shot from a slingshot simultaneously has projection, one side is provided with opening groove, projection and described keyhole over against and fall in the keyhole, it is characterized in that: described opening groove over against lock core be provided with lock core groove, be movably equipped with down card in the lock core groove, described lock core groove over against copper sheathing be provided with the copper sheathing groove, be provided with upper clamp slice in the copper sheathing groove, the copper sheathing cylindrical is exposed on the top of upper clamp slice, and contacts with card pellet shot from a slingshot that described copper sheathing is provided with outward, and the card pellet shot from a slingshot other end is provided with the card spring, also be provided with in the described copper sheathing and prevent the arbitrarily elastic positioning machine structure of idle running of lock core, described plectrum is connected the tail end of copper sheathing.Described opening groove is shaped as triangle, and described card down has the tip that matches with described opening groove towards an end of opening groove.Described elastic positioning machine structure comprises be symmetricly set in described lock core keyhole both sides two location pellets shot from a slingshot and retainer spring, and the location pellet shot from a slingshot is actively installed in the copper sheathing, and under described retainer spring effect, pellet shot from a slingshot top, location leans at described lock core keyhole dual-side.

After the utility model is installed; at ordinary times; lock core is under the effect of elastic positioning machine structure; can arbitrarily not dally; but after the robber uses instruments such as choosing pin to choose the in-core pellet shot from a slingshot of unblanking, can make Lock cylinder idling, prevent to make theftproof lock lose anti-theft feature because lock core rotates; effectively promote the anti-theft feature of security door, protected people's the security of the lives and property.

[description of drawings]

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

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

Fig. 3 is the B-B view of Fig. 1

Fig. 4 takes out view behind the key for Fig. 3

[specific embodiment]

With reference to accompanying drawing 1,2,3,4, this pick-proof lock that dallies, its right-hand member is key 17 direction of insertion, comprise lock core 15, copper sheathing 2, overcoat 4 and shell 13, described shell 13 is set in the overcoat 4 outer alignment pins 10 that also pass through and fixedlys connected with overcoat, described copper sheathing 2 rotatable being located in the overcoat 4, copper sheathing 2 left ends stretch out overcoat 4, its external part cylindrical is provided with shaft block ring 3, the left end termination of copper sheathing 2 is connected with plectrum 1, plectrum 1 is connected with the turned parts (not drawing among the figure) of lockset, the left end of described overcoat 4 is provided with anti-skid plate, and the sleeve pipe 7 of anti-skid plate is threaded with described overcoat 4, and its joint face is provided with keyway, put into flat key 5 in the keyway, the installing plate 6 of described anti-skid plate is fixedlyed connected with the inner door panel of security door; Described lock core 15 rotatable being located in the copper sheathing 2, be provided with anti-drilling sheet 14 between lock core 15 and the described shell 13, the keyhole 25 that lock core 15 has is located at the lock core cylindrical, in axial direction be provided with four special-shaped pellet shot from a slingshot holes of a row in the lock core 15, the abnormity pellet shot from a slingshot is movably equipped with special-shaped pellet shot from a slingshot 16 and special-shaped marble spring 23 in the hole, abnormity pellet shot from a slingshot 16 one sides have projection 24, one side is provided with opening groove, opening groove is shaped as triangle, described projection 24 and keyhole 25 over against and fall in the keyhole, described opening groove over against lock core 15 1 side inside and outside circles be provided with the lock core groove that runs through, described lock core groove over against copper sheathing 2 one side inside and outside circles be provided with the copper sheathing groove that runs through, lock core groove and copper sheathing groove are measure-alike and communicate, be movably equipped with down card 12 (following card has the tip that matches with described opening groove towards an end of opening groove) in the lock core groove, be provided with upper clamp slice 11 in the copper sheathing groove, copper sheathing 2 cylindricals are exposed on the top of upper clamp slice 11, and contact with the described copper sheathing 2 outer card pellets shot from a slingshot 8 that are provided with, card pellet shot from a slingshot 8 other ends are provided with card spring 9, and card pellet shot from a slingshot 8 and card spring 9 are actively installed in the described overcoat 4; Also be provided with two location pellets shot from a slingshot 22 and retainer spring 21 in the described copper sheathing 2, two location pellets shot from a slingshot 22 are symmetricly set in described lock core keyhole 25 both sides, location pellet shot from a slingshot 22 is actively installed in the copper sheathing 2, under described retainer spring 21 effects, pellet shot from a slingshot top, two location is exposed copper sheathing and is leaned keyhole dual-side at described lock core, and the effect of location pellet shot from a slingshot is the random idle running that prevents under the lock core peacetime state; Also have, also be provided with corresponding row's pellet shot from a slingshot hole in described copper sheathing 2 and the overcoat 4, be movably equipped with pellet shot from a slingshot 18, following pellet shot from a slingshot 19 and marble spring 20 in the pellet shot from a slingshot hole, last pellet shot from a slingshot contacts with following pellet shot from a slingshot, described marble spring is located at down the bottom of pellet shot from a slingshot, under the effect of marble spring, described copper sheathing 2 is exposed on last pellet shot from a slingshot 18 tops, and is relative with keyhole 25 and fall in the keyhole.

This idle running pick-proof lock is like this work: at key 17 not under the insertion state, lock core can not arbitrarily dally, the opening groove that abnormity pellet shot from a slingshot 16 has staggers with following card 12, following card bottom leans on special-shaped pellet shot from a slingshot surface, top and lock core 15 cylindricals maintain an equal level, upper clamp slice 11 top compressing card flat springs 9, and copper sheathing 2 cylindricals are exposed on the upper clamp slice top, pellet shot from a slingshot 22 tops, location are exposed copper sheathing 2 and are leaned keyhole 25 dual-sides at described lock core, and last pellet shot from a slingshot 18 tops are positioned at keyhole.If the robber with choosing instrument such as pin, prizes location pellet shot from a slingshot 22 and last pellet shot from a slingshot 18 at this moment, lock core 15 is rotated, but this moment, lock core was idle running, the plectrum 1 of copper sheathing that can not be rotationally connected, thus still can not open theftproof lock, so theftproof performance of the present utility model is fine.If owner goes home to insert key, this moment, special-shaped pellet shot from a slingshot 16 can be made corresponding mobile along with surperficial on the key curved groove, as shown in Figure 2, opening groove is alignd with following card 12, following card bottom enters opening groove, and upper clamp slice 11 enters lock core groove downwards, and upper clamp slice top and copper sheathing 2 cylindricals maintain an equal level; Meanwhile, location pellet shot from a slingshot 22 and last pellet shot from a slingshot 18 indentation copper sheathing 2 under the effect of key soffit, this moment key, lock core and copper sheathing rotate simultaneously, copper sheathing drives plectrum, thereby opens lockset.

Claims (3)

1. One kind idle running pick-proof lock, comprise lock core (15), copper sheathing (2), overcoat (4) and plectrum (1), copper sheathing (2) is rotatable to be located in the overcoat (4), lock core (15) is rotatable to be located in the copper sheathing (2), the keyhole (25) that lock core (15) has is located at the lock core cylindrical, be provided with a rejection shape pellet shot from a slingshot hole in the lock core (15), the abnormity pellet shot from a slingshot is movably equipped with special-shaped pellet shot from a slingshot (16) and special-shaped marble spring (23) in the hole, abnormity pellet shot from a slingshot (16) one side has projection (24), one side is provided with opening groove, projection (24) and described keyhole (25) over against and fall in the keyhole, it is characterized in that: described opening groove over against lock core (15) be provided with lock core groove, be movably equipped with down card (12) in the lock core groove, described lock core groove over against copper sheathing (2) be provided with the copper sheathing groove, be provided with upper clamp slice (11) in the copper sheathing groove, copper sheathing (2) cylindrical is exposed on the top of upper clamp slice (11), and contact with card pellet shot from a slingshot (8) that described copper sheathing is provided with outward, card pellet shot from a slingshot (8) other end is provided with card spring (9), also be provided with in the described copper sheathing (2) and prevent the arbitrarily elastic positioning machine structure of idle running of lock core (15), described plectrum (1) is connected the tail end of copper sheathing (2).
2. 2. idle running pick-proof lock as claimed in claim 1 is characterized in that: described opening groove is shaped as triangle, and described card (12) down has the tip that matches with described opening groove towards an end of opening groove.
3. 3. idle running pick-proof lock as claimed in claim 1, it is characterized in that: described elastic positioning machine structure comprises be symmetricly set in described lock core keyhole (25) both sides two location pellets shot from a slingshot (22) and retainer spring (21), location pellet shot from a slingshot (22) is actively installed in the copper sheathing (2), under described retainer spring (21) effect, pellet shot from a slingshot (22) top, location leans at described lock core keyhole (25) dual-side.