CN203188706U

CN203188706U - Engineering lock head

Info

Publication number: CN203188706U
Application number: CN 201320084402
Authority: CN
Inventors: 沈强
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-25
Filing date: 2013-02-25
Publication date: 2013-09-11
Anticipated expiration: 2023-02-25

Abstract

The utility model discloses an engineering lock head which comprises a lock shell (1). A rotatable lock container (2) is arranged in the lock shell (1). A key hole (21) and a vane groove (22) are formed in the lock container (2). A vane set (3) is placed in the vane groove (22). The engineering lock head is characterized in that the vane set (3) comprises engineering vanes (3a), destruction structures (34) are arranged on the engineering vanes (3a), according to the destruction structures (34), before destruction, an engineering key and a user key can both unlock the vane set (3), after destruction, only the user key can unlock the vane set (3), the destruction structures (34) of the lock container (2) rotate, and a springback device (4) which can push the vane set (3) to return is further arranged in the lock container (2).

Description

Engineering loch head

[technical field]

The utility model relates to a kind of engineering lock.

[background technology]

People have bought new house, generally to ask decoration company's finishing to the doorstep, be to give the finishing personnel key in house during the finishing, people know that the engineering lock divides user's spoon, two keys of engineering spoon, the engineering spoon is given the finishing personnel, and user's spoon is left user oneself for and used, after house decoration is intact, the house owner opens once door with user's spoon, and the engineering spoon had just lost efficacy and again do not opened door.

Chinese patent CN200610082172.3 application discloses the engineering loch head of anti-technology and destruction, he is the tapered end at lock core, or be provided with in the tapered end of pellet shot from a slingshot and be provided with the engineering pellet shot from a slingshot, the end face that contacts with key on the engineering pellet shot from a slingshot is placed in the key through hole, if or be placed on by the lock shell be baffle plate block and be hidden in cannelure and access opening in, two grooves that contact with same hole slot on the spring leaf are arranged on the engineering pellet shot from a slingshot, or the stopper slot that contacts with gag lever post, the other end of engineering pellet shot from a slingshot contacts with spring, or with special-purpose bolt, the engineering bolt that the locking lock core rotates, spring contacts in proper order; The engineering key uses for the decoration worker, and private key uses for the householder.

Existing engineering lock adopts all is that the structure of spring and pellet shot from a slingshot realizes that this structure installs very inconvenient, and complex process, produce very big cost, and theftproof is not strong.

[utility model content]

In order to solve deficiency of the prior art, provide a kind of easy for installation, technology is simple, and with low cost and engineering that theftproof is strong is locked.The technical solution adopted in the utility model is:

Engineering loch head, include lock housing, in described lock housing, be provided with rotating lock gall, in described lock gall, be provided with keyhole and blade groove, in described blade groove, be placed with vane group, in described vane group, include the engineering blade, be provided with the destruction structure at described engineering blade, described destruction structure be destroyed before, engineering spoon and user's spoon all can be untied vane group, and only can untie the destruction structure that vane group is rotated lock gall with user's spoon after destroying, in described lock gall, also be provided with and to promote the resilient mounting that vane group resets.

The cooperation of adopting the engineering blade to replace existing pellet shot from a slingshot and spring realizes the function of engineering lock, and its processing is simple, safe, and realizes easily, is convenient to assembling, and cost of production is reduced greatly.

Be provided with the passage that inserts for key in described vane group, be provided with breach in described vane group bottom, be provided with on the key tooth form in described vias inner walls and cooperate the number sheet of unblanking, be provided with flange on described vane group top.

Described destruction structure is located on the passage of engineering blade on the inwall with the key contacts side surfaces.

Described destruction structure is bulge-structure.

Described bulge-structure and vias inner walls junction are provided with the gap that bulge-structure is destroyed.

The projection effect is equivalent to the number sheet, cooperate with the key tooth form and to play positioning action, and cooperate with the one side of key toothless type in engineering blade protrusions, because the engineering spoon is identical with user's spoon toothless type one side width, just in time be in lockset position of coupler by the engineering blade behind the projection location, and the number sheet that cooperates with on the key tooth form on the engineering blade is in the gap between the tooth form, guarantees so not stopped after key inserts, and guarantees that simultaneously the engineering blade is in lockset position of coupler.

In described lock housing, be provided with groove, sell and the limit can be sold jack-up and make it enter the elastic component that the lock gall realization is unblanked fully thereby in described groove, be provided with the limit of blocking vane group and cooperating with breach.

Described resilient mounting is spring.

Described spring one end roof pressure is on the inwall of lock gall, and other end roof pressure is on the flange on vane group top.

Adopting the engineering lock of said structure, only need increase by a fritter projection at the blade of original lock core, is that the number sheet on it is simultaneously inoperative on user's spoon and engineering spoon, thus remove projection back number button just can with the engineering lock mismatch realize antitheft.It is simple in structure, and is easy to process, quick for installation, and what make is cheap for manufacturing cost, and can use many groups to improve antitheft coefficient, strengthens anti-theft feature.

[description of drawings]

Fig. 1 is the utility model tapered end explosive view.

Fig. 2 is individual blade topology view in the utility model vane group.

Fig. 3 is the utility model engineering blade construction view.

Fig. 4 is that the utility model engineering blade cooperates view with key.

[specific embodiment]

Engineering lock as shown in Figure 1 includes lock housing 1, is provided with rotating lock gall 2 in lock housing 1, is provided with keyhole 21 and blade groove 22 in lock gall 2, is placed with vane group 3 in blade groove 22.Be provided with the passage 32 that inserts for key in described vane group 3 as Fig. 2, be provided with breach 31 in described vane group 3 bottoms, be provided with on the key tooth form at described passage 32 inwalls and cooperate the number sheet 33 of unblanking, be provided with flange on described vane group 3 tops.In lock housing 1, be provided with groove 11, thereby also be provided with the limit pin 5 that blocks blade 3 and the limit can be sold 5 jack-up and make it enter lock gall 2 fully and realize the elastic component 6 of unblanking, described elastic component 6 is shell fragment, in described vane group 3, comprise engineering blade 3a, be provided with destruction structure 34 as Fig. 3 at described engineering blade 3a, before described destruction structure 34 is destroyed, engineering spoon and user's spoon all can be untied vane group 3, and only can untie the destruction structure 34 that vane group 3 is rotated lock gall 2 with user's spoon after destroying, in lock gall 2, also be provided with and to promote the resilient mounting 4 that vane group 3 resets.

Engineering blade 3a as shown in Figure 3, destruction structure 34 recited above is bulge-structure, it is the gap that bulge-structure destroys easily that described bulge-structure and passage 32 inwall junctions are provided with, gap be chamfering and be acute angle make the projection with inwall junction cross section littler, being easy to destroy projection, is that projection breaks away to fall from vias inner walls easily.

Engineering blade 3a as shown in Figure 4 with start the view that key cooperates, described startup key be on the basis of user's spoon again contact with the fritter projection 34 of engineering blade 3a one side offer one can be with protruding 34 insertions of monoblock aperture wherein.

Principle and the course of work:

This engineering lock is furnished with two keys: engineering spoon and user's spoon, the engineering spoon is different with the tooth form of user's spoon, also is provided with one and starts spoon (starting spoon namely is user's spoon, and just the sidewall at user's spoon offers an aperture).After inserting the engineering lock, user's spoon and engineering spoon be provided with engineering blade 3a in the different place of tooth form, under projection 34 effects on the engineering blade 3a, the number sheet that cooperates with on the key tooth form among the engineering blade 3a will can not work (namely projection has replaced the number sheet to come to cooperate to locate with the key sidewall breach 31 positions of engineering blade, and the number sheet on the engineering blade 3a is to be in all the time in the gap of key tooth form at this moment).After starting key insertion keyhole, projection 34 will be inserted under the effect of spring restoring force in the aperture that starts key when starting aperture on the key through the projection 34 of engineering blade 3a, firmly push-and-pull just can be pulled apart projection from passage 32 inwalls then, this moment, projection no longer played positioning action, in the time of in the engineering of the destroyed engineering blade 3a of falling of engineering spoon insertion is locked, number sheet on the engineering blade 3a will cooperate with the tooth form that engineering is locked to locate, and the tooth form that cooperates with the last number sheet 33 of engineering blade 3a on the engineering spoon is just in time different with the tooth form of user's spoon, so just make the engineering spoon insert the destroyed protruding engineering blade 3a of falling and to make groove 11 move to lockset position of coupler (being that limit pin 5 can not be fallen in the groove 11), so just can realize the effect of engineering lock.

Claims

1. engineering loch head, include lock housing (1), in described lock housing (1), be provided with rotating lock gall (2), in described lock gall (2), be provided with keyhole (21) and blade groove (22), in described blade groove (22), be placed with vane group (3), it is characterized in that: in described vane group (3), include engineering blade (3a), be provided with destruction structure (34) at described engineering blade (3a), described destruction structure (34) be destroyed before, engineering spoon and user's spoon all can be untied vane group (3), and only can untie the destruction structure (34) that vane group (3) is rotated lock gall (2) with user's spoon after destroying, in described lock gall (2), also be provided with and to promote the resilient mounting (4) that vane group (3) resets.

2. engineering loch head according to claim 1, it is characterized in that: be provided with the passage (32) that inserts for key in described vane group (3), be provided with breach (31) in described vane group (3) bottom, be provided with on the key tooth form at described passage (32) inwall and cooperate the number sheet (33) of unblanking, be provided with flange on described vane group (3) top.

3. engineering loch head according to claim 2 is characterized in that: the passage (32) that described destruction structure (34) is located at engineering blade (3a) go up and the inwall of key contacts side surfaces on.

4. engineering loch head according to claim 3 is characterized in that: described destruction structure (34) is bulge-structure.

5. engineering loch head according to claim 4, its structure is: described bulge-structure and passage (32) inwall junction is provided with the gap that bulge-structure is destroyed.

6. engineering loch head according to claim 1, it is characterized in that: in described lock housing (1), be provided with groove (11), in described groove (11), be provided with the limit pin (5) that blocks vane group (3) and cooperate with breach (31) and the limit can be sold (5) jack-up and make it enter lock gall (2) fully thereby the elastic component (6) that realization is unblanked.

7. engineering loch head according to claim 1, it is characterized in that: described resilient mounting (4) is spring.

8. engineering loch head according to claim 7, it is characterized in that: described spring one end roof pressure is on the inwall of lock gall (2), and other end roof pressure is on the flange on vane group (3) top.