CN201162391Y

CN201162391Y - Labyrinth type mechanical security lock

Info

Publication number: CN201162391Y
Application number: CNU2007201931612U
Authority: CN
Inventors: 戴俊涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-16
Filing date: 2007-11-09
Publication date: 2008-12-10
Anticipated expiration: 2017-11-09

Abstract

A labyrinth mechanical anti-theft relates to a lockset with the anti-theft function which includes a lock body, a lock core, a U-shaped lock beam and a gland; the lock core and the gland are arranged in a lock body hole in turn; a key cavity is arranged between the bottom end of the lock core and the lock body; the bottom part of the lock core is provided with at least two grooves communicated with the key cavity; a pin hole communicated with the key cavity is arranged at the inner side of the groove; the pin hole is matched with one end of an L-shaped bayonet pin the two ends of which are conical apexes; the other end of the L-shaped bayonet pin is matched with a pin slot at one end of the U-shaped lock beam; a spring is arranged between the L-shaped bayonet pin and the gland; the top part of the lock core is provided with a bayonet pin slot which is convenient for the L-shaped bayonet pin to move; the shapes of the cross beams of each groove are same or different; the shapes are rectangle or arc or triangle or trapezium. The anti-theft has the characteristics of not rotating by being turned and not opening by being pried. The safety performance of the anti-theft is extremely high; besides, the anti-theft has the advantages of broad application range, simple structure, low production cost, easy popularization, safety and reliability as well as convenient use.

Description

The labyrinth type mechanical anti-theft lock

Technical field:

The utility model relates to a kind of lockset with anti-theft feature, particularly a kind of labyrinth type mechanical anti-theft lock.

Background technology:

At present, sale and the employed mechanical anti-theft lock of people mainly all are cylinder locks on the market, open but this class cylinder lock has multiple way now, as opening with skill with iron wire or special tool; Or with punching pin lock core is impacted, will lock and open after destroying.Therefore, also the someone adopts and increases the lock core number of plies and increase marble row numbers even pellet shot from a slingshot is made the way of spatial arrangement, prevent that with this thief from opening lockset, but the structure more complicated of this theftproof lock, cost are higher, but also can not fundamentally solve the problem that prevents that the thief from adopting hardball to open it.

Summary of the invention:

The technical problems to be solved in the utility model is: provide a kind of pull do not change, prize not open, the labyrinth type mechanical anti-theft lock of theftproof performance extra-heavy, to solve the problems referred to above that the existing mechanical theftproof lock exists.

The technical scheme that solves the problems of the technologies described above is: a kind of labyrinth type mechanical anti-theft lock, comprise lock body, lock core, U-shaped lock bridge and gland, lock core, gland is installed in the lock body opening successively, individual key chamber is arranged between described lock core bottom and the lock body, the bottom of lock core is provided with the groove that at least 2 roads are communicated with key chamber corresponding to the position of lock body keyhole, the inboard that is positioned at groove also is provided with a pin-and-hole that is communicated with key chamber, this pin-and-hole cooperates with the end that the end, two ends is the top L shaped bayonet lock of circular cone, the other end of L shaped bayonet lock matches with the cotter way of U-shaped lock bridge one end, between described L shaped bayonet lock and the gland spring is installed, the top of lock core is provided with one and is convenient to the bayonet lock groove that L shaped bayonet lock moves.

The further technical scheme of the utility model is: the shape of cross section of described each groove is identical or inequality, and it is shaped as rectangle or arc or triangle or trapezoidal.

Another technical scheme of the present utility model is: the shape at described L shaped bayonet lock two ends is cylindrical.

Because adopt said structure, the labyrinth type mechanical anti-theft lock of the utility model is compared with the existing mechanical theftproof lock, has following beneficial effect:

1, theftproof performance extra-heavy:

Because the bottom of the labyrinth type mechanical anti-theft lock lock core of the utility model is provided with at least 2 road grooves, each road groove is different as the labyrinth, and existing picking lock skill can't be used; And, make and have only the special key of employing lock could be opened because precision-fit and end, L shaped bayonet lock two ends between groove and the private key are the top structure of circular cone; In addition, because this theftproof lock adopts not the structure with pellet shot from a slingshot, and lock core adopts the overall structure that does not have sub-core, so this theftproof lock has the characteristics of not changeing, prizing not open of pulling, and its theftproof performance extra-heavy;

2, applied widely:

Because this theftproof lock not only is suitable for various doors, all kinds of lock, also is applicable to all kinds of locksets such as safe door, so its scope of application is very extensive.

3, simple in structure, cost of production is low, is easy to promote:

Because lock core of the present utility model adopts not with the overall structure of pellet shot from a slingshot, sub-core, its structure is very simple, and need not assemble, so its cost of production is low, also is easy to promote the use of;

4, safe and reliable, easy to use:

The key of this theftproof lock does not have repair extremely, more can not open mutually, and is safe and reliable, easy to use, when unblanking as need, mentions promptly a little to groove and opens as long as the key of original configuration is inserted keyhole.

Below, the technical characterictic to the labyrinth type mechanical anti-theft lock of the utility model is further described in conjunction with the accompanying drawings and embodiments.

Description of drawings:

The structural representation of the labyrinth type mechanical anti-theft lock of Fig. 1～Fig. 3: embodiment one described the utility model,

The right view of Fig. 1: Fig. 2; Fig. 2: front view (partial sectional view);

The vertical view of Fig. 3: Fig. 2 (partial sectional view);

The structural representation of the labyrinth type mechanical anti-theft lock of Fig. 4～Fig. 5: embodiment two described the utility model,

Fig. 4: front view (partial sectional view);

The vertical view of Fig. 5: Fig. 4 (partial sectional view);

Among the figure:

The 1-lock body, the 11-keyhole, the 2-lock core, the 21-groove,

The 22-pin-and-hole, 23-bayonet lock groove, 3-U shape lock bridge, the 31-cotter way,

4-L shape bayonet lock, 5-gland, 6-spring, Q-key chamber.

The specific embodiment:

Embodiment one:

A kind of labyrinth type mechanical anti-theft lock is (referring to Fig. 1～Fig. 3), comprise lock body 1, lock core 2, U-shaped lock bridge 3 and gland 5, lock core 2, gland 5 is installed in lock body 1 hole successively, individual key chamber Q is arranged between described lock core 2 bottoms and the lock body 1, the bottom of lock core 2 is provided with the groove 21 that 3 roads are communicated with key chamber Q corresponding to the position of lock body keyhole 11, the shape of cross section of this groove 21 is rectangle, the inboard that is positioned at groove 21 also is provided with a pin-and-hole 22 that is communicated with key chamber Q, this pin-and-hole 22 cooperates with an end of L shaped bayonet lock 4, the other end of L shaped bayonet lock 4 matches with the cotter way 31 of U-shaped lock bridge one end, the shape at described L shaped bayonet lock 4 two ends is cylindrical, its end, two ends is the circular cone top tip structure, between described L shaped bayonet lock 4 and the gland 5 spring 6 is installed, the top of lock core 2 is provided with one and is convenient to the bayonet lock groove 23 that L shaped bayonet lock 4 moves.

Described lock core 2 is made by brass material integral body, and L shaped bayonet lock is made by stainless steel material.

As a kind of conversion of present embodiment one, the shape at L shaped bayonet lock 4 two ends can also be square or other shape.

Embodiment two:

A kind of labyrinth type mechanical anti-theft lock is (referring to Fig. 4～Fig. 5), its basic structure is with embodiment one, institute's difference is: the bottom of described lock core 2 is provided with 2 road grooves 21 corresponding to the position of lock body keyhole 11, the shape of cross section arc of one groove 21 wherein, the shape of cross section of another road groove 21 is trapezoidal.

As a kind of conversion of the foregoing description one and embodiment two, the quantity of described groove 21 can also increase to 4,5,6,7 as required ..., but minimum be 2 roads.

As another conversion of embodiment one and embodiment two, the shape of cross section of described each groove 21 can be identical or inequality, and it is shaped as rectangle or arc or triangle or trapezoidal or Else Rule or irregular shape.

Claims

1. labyrinth type mechanical anti-theft lock, comprise lock body (1), lock core (2), U-shaped lock bridge (3) and gland (5), lock core (2), gland (5) is installed in lock body (1) hole successively, it is characterized in that: between described lock core (2) bottom and the lock body (1) individual key chamber (Q) is arranged, the bottom of lock core (2) is provided with the groove (21) that at least 2 roads are communicated with key chamber (Q) corresponding to the position of lock body keyhole (11), the inboard that is positioned at groove (21) also is provided with a pin-and-hole (22) that is communicated with key chamber (Q), this pin-and-hole (22) cooperates with the end that the end, two ends is the top L shaped bayonet lock (4) of circular cone, the other end of L shaped bayonet lock (4) matches with the cotter way (31) of U-shaped lock bridge one end, between described L shaped bayonet lock (4) and the gland (5) spring (6) is installed, the top of lock core (2) is provided with one and is convenient to the bayonet lock groove (23) that L shaped bayonet lock (4) moves.

2. labyrinth type mechanical anti-theft lock according to claim 1 is characterized in that: the shape of cross section of described each groove (21) is identical or inequality, and it is shaped as rectangle or arc or triangle or trapezoidal.

3. labyrinth type mechanical anti-theft lock according to claim 1 and 2 is characterized in that: the shape at described L shaped bayonet lock (4) two ends is cylindrical.

4. labyrinth type mechanical anti-theft lock according to claim 1 and 2 is characterized in that: described lock core (2) is made by brass material integral body.

5. labyrinth type mechanical anti-theft lock according to claim 3 is characterized in that: described lock core (2) is made by brass material integral body.

6. according to claim 1 or 2 or 5 described labyrinth type mechanical anti-theft locks, it is characterized in that: described L shaped bayonet lock (4) is made by stainless steel material.

7. labyrinth type mechanical anti-theft lock according to claim 3 is characterized in that: described L shaped bayonet lock (4) is made by stainless steel material.

8. labyrinth type mechanical anti-theft lock according to claim 4 is characterized in that: described L shaped bayonet lock (4) is made by stainless steel material.