CN2747326Y

CN2747326Y - Built in theft-proof lock

Info

Publication number: CN2747326Y
Application number: CN 200420054531
Authority: CN
Inventors: 吴昭乐
Original assignee: 吴昭乐
Current assignee: Wenzhou Jiajia Invisible Burglarproof Lock Co., Ltd.
Priority date: 2004-12-17
Filing date: 2004-12-17
Publication date: 2005-12-21
Anticipated expiration: 2014-12-17

Abstract

The utility model relates to a lock device, in particular to a built in theft-proof lock. The utility model is realized by adopting the following technical proposal that the built in theft-proof lock comprises an internal lock core, an external lock core, a lock core casing, a locking mechanism for locking the internal lock core, and a locking mechanism for locking the external lock core. The internal lock core is arranged in the external lock core, and the external lock core is sheathed in the lock core casing. At the radial direction, the two locking mechanisms are arranged in the form of offsetting; the position where the internal lock core is adjacent to the external lock core is provided with a keyhole. Through adopting the above technical scheme, the utility model overcomes the defect existing in prior art and provides a built in theft-proof lock which is used to shelter a beam of locking mechanism greatly. Consequently, the technical opener discovers the locking mechanism so hardly that the lock can not be opened.

Description

The invisible antitheft tapered end

Technical field

The utility model relates to a kind of lockset, is meant a kind of invisible antitheft tapered end especially.

Background technology

At present, for the theftproof performance of tapered end and the raising of locking performance, increase the difficulty of technical opening, people have designed various anti-theft billiards tapered ends, as by the cylinder lock of singly depositing in the past, develop into the slice, thin piece lock, develop into polygon locking mechanism by monolateral locking mechanism, on theftproof performance, be improved, but they still exist some defectives, pellet shot from a slingshot or shell fragment as these locks are exposed in the keyhole, insert keyhole with master key or other work and can both touch pellet shot from a slingshot and shell fragment, so provide condition to technical opening.

Summary of the invention

The utility model provides a kind of invisible antitheft tapered end in order to solve the weak point that above-mentioned prior art exists, this tapered end is well hidden one locking mechanism, and the person is difficult to find to make the technical opening, thereby can't open.

This use is novel to be to adopt following technical scheme to realize: a kind of invisible antitheft tapered end, described invisible antitheft tapered end includes the locking mechanism of internal cylinder, outer lock core, lock core shell, locking internal cylinder and the locking mechanism of locking outer lock core, internal cylinder places outer lock core, outer lock core is socketed in the lock core shell, described two locking mechanism radial misalignments are provided with, internal cylinder be provided with keyhole with the outer lock core position adjacent.

Further setting of the present utility model is: the locking mechanism of described locking internal cylinder is made up of the pellet shot from a slingshot and the marble spring that are separately positioned in the corresponding pellet shot from a slingshot of internal cylinder, outer lock core and the lock core shell hole, wherein pellet shot from a slingshot hole on the internal cylinder and keyhole connect, and the locking mechanism of described locking outer lock core is made up of the pellet shot from a slingshot and the marble spring that are separately positioned in the corresponding pellet shot from a slingshot of outer lock core and the lock core shell hole.

Described outer lock core is provided with groove, and slot opening is facing to internal cylinder, and groove is provided with the antitheft shell fragment of working end towards keyhole in groove between keyhole and locking mechanism.

The key insertion end of described internal cylinder is set with the internal lock core cap, the thickness of internal lock core cap is equal to or greater than the thickness of the key that is used for this tapered end, internal cylinder covers and is provided with the U-shaped opening, the width of U-shaped opening equals or is slightly larger than the width of keyhole, the degree of depth of U-shaped opening is greater than the radius of internal lock core cap, this U-shaped opening is positioned at the top of keyhole insertion end, internal lock core cap and outer lock core shoulder rank clamping matching, also be shoulder rank clamping matching at key insertion hole end outer lock core and lock core shell, on the key insertion end of lock core shell, be fixed with the lock core protecting cover, on the lock core protecting cover, be provided with the through hole corresponding with the U-shaped opening of internal lock core cap, the width of this through hole equals or is slightly larger than the width of U-shaped opening, length equals or is slightly larger than the degree of depth of U-shaped opening, and keyhole and U-shaped opening are exposed.

Describedly have circular-shaped, concave cavity in lock core protecting cover inboard, this cavity be positioned at the internal lock core cap directly over, the diameter of cavity is greater than the diameter of internal lock core cap.

Be provided with internal cylinder and outer lock core by tapered end, internal cylinder and outer lock core have oneself independently locking mechanism respectively, and two locking mechanism radial misalignments are provided with, help well hiding a locking mechanism like this, be difficult for being found, again because internal cylinder is provided with groove by the technical opening person, in groove, be provided with antitheft shell fragment, then just in case during technical opening, internal cylinder rotates to certain position will be difficult to rotation by screens.

The figure explanation of bowing

Fig. 1 is the front view of the utility model embodiment;

Fig. 2 is the B-B sectional view of Fig. 1;

Fig. 3 is the A-A sectional view of Fig. 1;

Fig. 4 is the C-C sectional view of Fig. 2;

Fig. 5 is that the user mode of the utility model embodiment is with reference to figure 1;

Fig. 6 is that the user mode of the utility model embodiment is with reference to figure 2;

The Key structure schematic diagram that Fig. 7 uses for the tapered end of the utility model embodiment.

The specific embodiment

Figure is further described the utility model embodiment in conjunction with bowing:

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of invisible antitheft tapered end, include the locking mechanism 4 of internal cylinder 1, outer lock core 2, lock core shell 3, locking internal cylinder 1 and the locking mechanism 5 of locking outer lock core 2, internal cylinder 1 places outer lock core 2, outer lock core 2 is socketed in the

lock core shell

3,4, the 5 radial misalignments settings of described two locking mechanisms, in the present embodiment, two

locking mechanism

4,5 radial misalignments are slightly larger than 90 degree.Internal cylinder be provided with keyhole with the outer lock core position adjacent.The locking mechanism 4 of described locking internal cylinder 1 is formed by being separately positioned in internal cylinder 1, outer lock core 2 and the lock core shell 3 pellet shot from a slingshot 41 in the corresponding pellet shot from a slingshot hole and marble spring 41, pellet shot from a slingshot hole 12 on the described internal cylinder 1 connects with keyhole 6, the operating principle of its set-up mode and unlatching is the same with common cylinder lock, certainly the locking mechanism 4 in this enforcement also can replace with the locking form in the slice, thin piece lock, also can replace with the locking form of magnetic lock; The locking mechanism 5 of described locking outer lock core 2 is made up of the pellet shot from a slingshot 51 and the marble spring 52 that are separately positioned in outer lock core 2 and the lock core shell 3 corresponding pellet shot from a slingshot holes.In order to increase the difficulty of technical opening, outer lock core 2 in the present embodiment is provided with groove 21, groove 21 openings are facing to internal cylinder 1, between the keyhole 6 and locking mechanism 5 of this groove 21 key turns direction when opening, be provided with antitheft shell fragment 22 in groove 21, the working end 221 of antitheft shell fragment 22 is towards keyhole 6, like this when technical opening, after keyhole 6 on the internal cylinder 1 forwarded this position to, antitheft shell fragment 22 will block internal cylinder 1, made it to be difficult to rotate.The key insertion end of described internal cylinder 1 is set with internal lock core cap 11, the thickness of internal lock core cap 11 is equal to or greater than the thickness of the key that is used for this tapered end, internal lock core cap 11 is provided with U-shaped opening 111, the width of U-shaped opening 111 equals or is slightly larger than the width of keyhole 6, the degree of depth of U-shaped opening 111 is slightly larger than the radius of internal lock core cap 11, the opening part of U-shaped opening 111 be positioned at keyhole 6 insertion ends directly over, in the present embodiment, internal lock core cap 11 can be wholely set with internal cylinder 1.Internal lock core cap 11 and outer lock core 2 shoulder rank clamping matching are convenient to hide the slit between internal cylinder 1 and the outer lock core 2, also are shoulder rank clamping matching at key insertion hole end outer lock core 2 and lock core shell 3, in order to hide the slit between outer lock core 2 and the lock core shell 3.In order further to hide outer lock core 2, on the key insertion end of lock core shell 3, be fixed with lock core protecting cover 7, on lock core protecting cover 7, be provided with the through hole 71 corresponding with the U-shaped opening 111 of internal lock core cap 11, the width of this through hole 71 equals or is slightly larger than the width of U-shaped opening 111, length equals or is slightly larger than the degree of depth of U-shaped opening 111, and keyhole 6 and U-shaped opening 111 are exposed.For when opening, reduce the friction between key and the lock core protecting cover 7, have circular-shaped, concave cavity 72 in lock core protecting cover 7 inboards, this cavity 72 be positioned at internal lock core cap 11 directly over, the diameter of cavity 72 is greater than the diameter of internal lock core cap 11.

Operating principle: as Fig. 5, Fig. 6 and shown in Figure 7, the key 61 that is used for this tapered end be "

" shape; the two sides that key is dismissed is respectively work plane 612,613, at first key 61 is inserted in the keyholes 6, and the shoulder rank 611 of key 61 are just in time fallen in the U-shaped opening 111 of internal lock core cap; then the work plane 612 of key 61 cooperates with locking mechanism 4 on being locked in internal cylinder l, opens this locking mechanism 4; Key 6l, make the working end of key 61 enter stealthy work, the shoulder rank 611 of key enter the below of lock core protecting cover 7 at this moment, key 61 drives internal cylinder 1 rotation simultaneously, after forwarding locking mechanism 5 positions of key 61 and locking outer lock core 2 to, pellet shot from a slingshot 51 parts in this locking mechanism 5 fall into the pellet shot from a slingshot groove on the work plane 613 of key 61, open locking mechanism 5, in this motion process, because key 61 is roughly circular with the combination of internal cylinder 1, so antitheft shell fragment 22 is not worked, key 61 again, and tapered end is opened.

Claims

1, a kind of invisible antitheft tapered end, it is characterized in that: described invisible antitheft tapered end includes the locking mechanism (4) of internal cylinder (1), outer lock core (2), lock core shell (3), locking internal cylinder (1) and the locking mechanism (5) of locking outer lock core (2), internal cylinder (1) places outer lock core (2), outer lock core (2) is socketed in the lock core shell (3), described two locking mechanisms (4), (5) radial misalignments setting, internal cylinder (1) be provided with keyhole (6) with outer lock core (2) position adjacent.

2, invisible antitheft tapered end according to claim 1, it is characterized in that: the locking mechanism (4) of described locking internal cylinder (1) is made up of the pellet shot from a slingshot (41) and the marble spring (42) that are separately positioned in internal cylinder (1), outer lock core (2) and the corresponding pellet shot from a slingshot of lock core shell (3) hole, wherein the pellet shot from a slingshot hole (12) on the internal cylinder (1) connects with keyhole (6), and the locking mechanism (5) of described locking outer lock core (2) is made up of the pellet shot from a slingshot (51) and the marble spring (52) that are separately positioned in outer lock core (2) and the corresponding pellet shot from a slingshot of lock core shell (3) hole.

3, invisible antitheft tapered end according to claim 1 and 2, it is characterized in that: described outer lock core (1) is provided with groove (21), the opening of groove (21) is facing to internal cylinder (1), groove (21) is positioned between keyhole (6) and the locking mechanism (5), is provided with the antitheft shell fragment (22) of working end (221) towards keyhole (6) in groove (21).

4, invisible antitheft tapered end according to claim 1 and 2, it is characterized in that: the key insertion end of described internal cylinder (1) is set with internal lock core cap (11), the thickness of internal lock core cap (11) is equal to or greater than the thickness of the key that is used for this tapered end, internal lock core cap (11) is provided with U-shaped opening (111), the width of U-shaped opening (111) equals or is slightly larger than the width of keyhole (6), the degree of depth of U-shaped opening (111) is greater than the radius of internal lock core cap (11), this U-shaped opening (111) be positioned at keyhole (6) insertion end directly over, internal lock core cap (11) and outer lock core (2) shoulder rank clamping matching, also be shoulder rank clamping matching at key insertion end outer lock core (2) and lock core shell (3), on the key insertion end of lock core shell (3), be fixed with lock core protecting cover (7), on lock core protecting cover (7), be provided with the through hole (71) corresponding with the U-shaped opening (111) of internal lock core cap (11), the width of this through hole (71) equals or is slightly larger than the width of U-shaped opening (111), length equals or is slightly larger than the degree of depth of U-shaped opening (111), and keyhole (6) and U-shaped opening (11) are exposed.

5, invisible antitheft tapered end according to claim 3, it is characterized in that: the key insertion end of described internal cylinder (1) is set with internal lock core cap (11), the thickness of internal lock core cap (11) is equal to or greater than the thickness of the key that is used for this tapered end, internal lock core cap (11) is provided with U-shaped opening (111), the width of U-shaped opening (111) equals or is slightly larger than the width of keyhole (6), the degree of depth of U-shaped opening (111) is greater than the radius of internal lock core cap (11), this U-shaped opening (111) be positioned at keyhole (6) insertion end directly over, internal lock core cap (11) and outer lock core (2) shoulder rank clamping matching, also be shoulder rank clamping matching at key insertion end outer lock core (2) and lock core shell (3), on the key insertion end of lock core shell (3), be fixed with lock core protecting cover (7), on lock core protecting cover (7), be provided with the through hole (71) corresponding with the U-shaped opening (111) of internal lock core cap (11), the width of this through hole (71) equals or is slightly larger than the width of U-shaped opening (111), length equals or is slightly larger than the degree of depth of U-shaped opening (111), and keyhole (6) and U-shaped opening (11) are exposed.

6, invisible antitheft tapered end according to claim 4, it is characterized in that: have circular-shaped, concave cavity (72) in lock core protecting cover (7) inboard, this cavity (72) be positioned at internal lock core cap (11) directly over, the diameter of cavity (72) is greater than the diameter of internal lock core cap (11).

7, invisible antitheft tapered end according to claim 5, it is characterized in that: have circular-shaped, concave cavity (72) in lock core protecting cover (7) inboard, this cavity (72) be positioned at internal lock core cap (11) directly over, the diameter of cavity (72) is greater than the diameter of internal lock core cap (11).