CN110067444B

CN110067444B - Antitheft lock

Info

Publication number: CN110067444B
Application number: CN201910425266.3A
Authority: CN
Inventors: 田聪; 唐江涛
Original assignee: Wonly Security And Protection Technology Co ltd
Current assignee: Wonly Security And Protection Technology Co ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2024-02-13
Anticipated expiration: 2039-05-21
Also published as: CN110067444A

Abstract

The invention relates to an anti-theft lockset, which comprises a key, a lock cylinder, a lock shell, a lock cylinder body and an elastic limiting part, wherein one end of the elastic limiting part is provided with a clamping convex part; the lock shell is fixedly connected with the door plate, a rotatable control piece is further arranged between the lock shell and the lock core body, a strip-shaped lock hole is formed in the center of the control piece, at least one protruding part is arranged on one surface of the control piece, which is in contact with the lock shell, a sliding groove is formed in one surface, which is in contact with the lock core body, of the control piece, the depth of the sliding groove is from shallow to deep, a containing hole is formed in the surface, which is in contact with the control piece, of the lock core body, a limiting groove is formed in the lock core, and a avoidance hole which is convenient for the protruding part to rotate is formed in the lock shell; the key is still including locating the transition portion between handle portion and the dull and stereotyped knurling portion, and the transition portion can pass the circle of taking the width of rectangular shape lockhole as the diameter, and this theftproof tool to lock simple structure, low in manufacturing cost, the popularization nature is strong, and it is through shielding lockhole for technical unblanking is from the hand down, through selecting for use and prevent boring the material, makes the destructive unblanking difficult to add.

Description

Antitheft lock

Technical Field

The invention belongs to the technical field of locks, and particularly relates to an anti-theft lock.

Background

Currently, in the lockset industry, when pursuing better anti-theft performance, a more complex lock cylinder or a more complex lock body structure is often adopted to improve the anti-theft level, for example, the patent of the invention with the publication number of CN 102287083B: the lock core for preventing technical unlocking adopts extremely complex lock body and lock core to match so as to prevent technical unlocking; another example is the patent of the invention issued CN 103790441B: the anti-theft lockset adopts complex lock core and key to match and arrange multiple anti-theft locks to improve anti-theft performance. The anti-theft locksets have high manufacturing cost and low popularization, and technical unlocking is organically multiplied due to the direct exposure of the lock holes, so that the development direction of the mechanical locksets is generally towards the trend of complicated development, and the development of the lockset industry is limited.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the anti-theft lockset which is simple in structure, low in manufacturing cost and strong in popularization, and can make technical unlocking be performed without going down by shielding a lockhole, and can make destructive unlocking difficult by selecting anti-drilling materials.

In order to achieve the above object, the technical solution of the present invention is: the anti-theft lockset comprises a key, a lock cylinder, a lock shell and a lock cylinder body, wherein a strip-shaped lock hole is formed in the centers of the lock cylinder and the lock shell, the lock cylinder body fixedly connected with a door plate is sleeved on the outer surface of the lock cylinder, the lock shell is sleeved on the outer surface of the lock cylinder body, the key comprises a handle part and a flat plate type embossing part, and the lock cylinder can be driven to rotate in the lock cylinder body to open the anti-theft lockset when the flat plate type embossing part is completely inserted into the strip-shaped lock hole;

the anti-theft lock further comprises an elastic limiting part, and a clamping convex part is arranged at one end of the elastic limiting part;

the lock shell is fixedly connected with the door plate, a rotatable control piece is arranged between the lock shell and the lock cylinder body, a strip-shaped lock hole is arranged in the center of the control piece, at least one protruding part is arranged on one surface of the control piece, which is contacted with the lock shell, a sliding groove is arranged on one surface, which is contacted with the lock cylinder body, the depth of the sliding groove is from shallow to deep, a containing hole is formed in the surface, which is in contact with the control piece, of the lock cylinder body, a limiting groove is formed in the lock cylinder, and a avoidance hole which is convenient for the protruding part to rotate is formed in the lock shell;

the key further comprises a transition part arranged between the handle part and the flat plate-type embossed part, and the transition part can penetrate through a circle with the width of the strip-shaped lock hole as a diameter.

Further, the sliding groove is an arc-shaped groove, and the avoidance holes are arc-shaped holes with the same radian as the arc-shaped groove.

Further, the elastic limiting part comprises a polygonal nail body, the nail body and the clamping convex part are integrally formed, a pressure spring is sleeved on the outer side of the nail body, and one end of the pressure spring is fixedly connected with the clamping convex part.

Further, the accommodating hole comprises a guide hole matched with the outer shape of the nail body, a round hole is formed in the guide hole, a step is formed in the joint surface of the round hole and the guide hole, and an accommodating notch is formed in the side face of the round hole.

Furthermore, the control piece is in a shape of a cake, and the control piece is made of an anti-drilling material.

Further, the lock shell material is an anti-drilling material.

Further, the protruding portion is a cylindrical protrusion.

Further, the anti-theft lockset further comprises a spherical handle, the spherical handle is sleeved outside the lock shell and can rotate around the lock shell, a control part connected with the protruding part is arranged in the spherical handle, and a strip-shaped lock hole is formed in the center of the spherical handle (8) in a penetrating mode.

Further, a circular through hole is formed in the center of the strip-shaped lock hole.

Further, the cross section of the transition part is round.

The beneficial effects of the invention are as follows:

1. according to the anti-theft lock, the key is in fit with the control piece, the elastic limiting part, the lock cylinder body, the lock cylinder and the lock shell, so that the anti-theft lock can be turned to open only after the key is completely inserted into the rectangular lock hole of the lock cylinder, namely, the key is completely inserted into the lock cylinder to be matched with the lock cylinder, but the lock cylinder cannot be unlocked due to the fact that the rotation of the lock cylinder in the lock cylinder body is limited by the clamping convex part of the elastic limiting part, at the moment, the control piece is turned, so that the rectangular lock hole on the control piece is staggered with the rectangular lock holes arranged on two sides, namely, the lock shell and the lock cylinder, the lock hole is shielded by the control piece, only a communication area with the extremely small center is reserved for the transition part of the key to pass through, and the clamping convex part of the elastic limiting part ejects the limiting groove on the lock cylinder to release the limit, and after release of the limit, the lock can be turned to open by the key; when the technical unlocking is performed, the control piece is required to be rotated in advance, otherwise, the lock core is limited by the clamping convex part in the lock core body and cannot be rotated, but after the control piece is rotated, the lock hole is shielded by the control piece to largely leave only a central extremely small communication area, and the technical unlocking cannot enter or cannot move or cannot touch a plurality of unlocking key points at the same time because the lock hole is extremely small, so that the anti-theft performance of the lock is improved.

2. The lock cylinder lock body of the mechanical lockset has the advantages of ingenious and simple structure, low manufacturing cost and strong popularization, and only needs to be slightly changed on a general lockset, thereby breaking through the trend of the complicated development of the lock cylinder of the mechanical lockset.

Drawings

Fig. 1 is an exploded view of the anti-theft lock of the present invention.

Fig. 2 is a top view of the antitheft lock of the invention when the key is inserted.

Fig. 3 is a cross-sectional view taken along the direction a of fig. 2.

Fig. 4 is a cross-sectional view of a lock cylinder body according to the present invention.

Fig. 5 is a schematic structural view of the control member in the present invention.

FIG. 6 is a schematic diagram of a lock hole in a general state of the anti-theft lock according to the present invention.

Fig. 7 is a schematic view of a lock hole of the anti-theft lock according to the present invention after rotation.

Fig. 8 is an exploded view of a preferred embodiment of the anti-theft lock of the present invention.

In the figure: 1. a key; 2. a lock core; 3. a lock case; 4. a lock cylinder body; 5. a strip-shaped lock hole; 6. a control member; 7. an elastic limit part; 8. a spherical handle; 11. a flat plate-type embossed portion; 12. a handle portion; 13. a transition section; 21. a limit groove; 31. avoiding the holes; 41. an accommodation hole; 51. a circular through hole; 61. a protruding portion; 62. a sliding groove; 71. a convex clamping part; 72. a nail body; 73. a pressure spring; 81. a control unit; 411. a guide hole; 412. a round hole; 413. the accommodating notch; 811. and controlling the round hole.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 8, the structure of the present invention is: the invention relates to an anti-theft lockset, which comprises a key 1, a lock cylinder 2, a lock shell 3 and a lock cylinder body 4, wherein the lock cylinder 2, the lock shell 3 and the lock cylinder body 4 are all revolution bodies and are coaxial, the centers of the lock cylinder 2 and the lock shell 3 are provided with an elongated lock hole 5, the outer surface of the lock cylinder 2 is sleeved with the lock cylinder body 4 welded and fixed with a door plate, the outer surface of the lock cylinder body 4 is sleeved with the lock shell 3, the key 1 comprises a handle part 12 and a flat embossing part 11, when the flat embossing part 11 is completely inserted into the elongated lock hole 5 of the lock cylinder 2 and matched with the lock cylinder 2, the lock cylinder 2 can be driven to rotate in the lock cylinder body 4 to open the anti-theft lockset, the flat embossing part 11 and the elongated lock hole 5 are in clearance fit with matched external dimensions, the anti-theft lockset is technically innovative in that the anti-theft lockset further comprises an elastic limiting part 7, the elastic limiting part 7 is nail-shaped and comprises a nail body 72, one end of the nail body 72 is provided with a clamping convex part 71, the nail 72 and the clamping convex part 71 are integrally molded, and the outer side surface of the nail body 72 is sleeved with a pressure spring 73, and one end of the clamping convex part 73 is welded and fixed with the pressure spring 71. The lock shell 3 is welded and fixed with a door plate, a cake-shaped control piece 6 capable of freely rotating around the center of the lock shell 3 is further arranged between the lock shell 3 and the lock cylinder body 4, a strip-shaped lock hole 5 is formed in the center of the control piece 6, 2 cylindrical protruding parts 61 are welded on one surface, which is in contact with the lock shell 3, of the control piece 6, the 2 protruding parts 61 are symmetrical with the center point of the control piece 6, the stress rotation is convenient, and correspondingly, a avoidance hole 31 which is needed for facilitating the rotation of the protruding parts 61 is formed in the lock shell 3; the control piece 6 is provided with arc sliding groove 62 with the one side that the lock core body 4 contacted, the curved centre of a circle passes through control piece 6 axis, sliding groove 62 degree of depth is from shallow to deep to can hold the card convex part 71 that pops out completely, it has accommodation hole 41 to open on the face that contacts with control piece 6 on the lock core body 4, accommodation hole 41 is including the guiding hole 411 that can hold nail body 72, be equipped with the round hole 412 that can hold pressure spring 73 on the guiding hole 411, the joint face of round hole 412 and guiding hole 411 is provided with the spacing step of pressure spring, be equipped with accommodation notch 413 on the side that round hole 412 is close to lock core 2, be provided with spacing groove 21 on the side of lock core 2 next to accommodation notch 413, accommodation space that accommodation notch 413 and spacing groove 21 cooperate and form is used for holding the card convex part 71 that does not pops out. The key 1 further comprises a transition portion 13 arranged between the handle portion 12 and the flat embossed portion 11, said transition portion 13 being able to pass through a circle having a diameter corresponding to the width of the elongated locking hole 5, in particular the cross section of the transition portion 13 being circular, the length of the transition portion 13 being sufficient to bring the flat embossed portion 11 completely into the lock cylinder 2 without bringing the flat embossed portion 11 into contact with the control member 6 during unlocking.

As a preferable technical scheme of the design, the flat plate type embossing part 11 is 12mm wide and 1mm thick, and the long strip-shaped lock hole 5 matched with the external dimension is also long and narrow, so that the shielding dimension of the control piece 6 after rotation is enlarged, the communication area is smaller, and the anti-theft performance is stronger.

As a preferable technical scheme of the design, the lock shell 3 and the control piece 6 are made of anti-drilling materials such as: the application of the anti-drilling material ensures that the lockset is difficult to be destructively unlocked.

As a preferable technical scheme of the design, a circular through hole 51 is formed in the center of the strip-shaped lock hole 5, so that the key 1 can enter and rotate conveniently.

As a preferable technical scheme of the design, the pin body 72 and the guide hole 411 are both regular quadrangles or regular hexagons, so that the pin body 72 can only make translational movement but not make rotational movement when inserted into the guide hole 411, thereby making the lock more reliable.

As a preferred technical scheme of the design, as shown in fig. 8, a spherical handle 8 is sleeved on the outer side of the lock shell 3, 2 grooves are formed on the outer side of the spherical handle 8, bearings are sleeved between the grooves, snap springs are sleeved on the grooves on two sides of the bearings, namely, the spherical handle 8 is movably connected with a door plate (omitted in the figure), that is, the spherical handle 8 can rotate around the lock shell 3, a control part 81 is welded in the spherical handle 8, the control part 81 drives a cylindrical protruding part 61 through a control round hole 811 on the control part so as to drive a control part 6 to rotate, and a strip-shaped lock hole 5 is penetrated through the center of the spherical handle 8.

In a specific use, in a general locking state, as shown in fig. 6, the positions of all the strip-shaped lock holes 5 of the anti-theft lock are consistent, the clamping convex parts 71 are limited in an accommodating space formed by the accommodating notch 413 and the limiting groove 21 by the control piece 6 so as to clamp the lock cylinder 2, at the moment, the key 1 is inserted until the key cannot be pushed forward, then the control piece 6 is driven to rotate by the rotating convex part 61 (the rotating spherical handle 8 provided with the spherical handle 8), when the control piece 6 rotates, the clamping convex parts 71 which are propped against the control piece 6 on one hand completely enter the sliding groove 62 of the control piece 6 by popping up the accommodating space formed by the accommodating notch 413 and the limiting groove 21 from the shallow-deep sliding groove 62, and the limit between the lock cylinder 2 and the lock cylinder body 4 is released by the clamping convex parts 71; on the other hand, when the control member 6 rotates, the upper strip-shaped lock hole 5 is staggered with the strip-shaped lock holes 5 on the lock shell 3 and the lock cylinder 2, the lock holes are shielded, and finally, only the unique circular through holes 51 are left on the surface of the lockset, as shown in fig. 7. After the control piece 6 rotates in place, the inserted key 1 is rotated to complete the complete unlocking of the lockset; when the key is to be locked, the key 1 is returned to the original position, the control member 6 is turned back, and the key is pulled out. When the technical unlocking is performed, the control member 6 is required to be rotated to release the limit between the lock cylinder 2 and the lock cylinder body 4 through the clamping convex part 71, but when the limit is released, the lock hole is also shielded to expose only the single circular through hole 51, as shown in fig. 7, the unlocking tool cannot enter or move or cannot touch a plurality of unlocking key points at the same time because the lock hole is too small.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. The utility model provides an anti-theft lock, includes key (1), lock core (2), lock shell (3), lock core body (4), lock core (2) and lock shell (3) center are equipped with rectangular lockhole (5), lock core (2) surface cover has and door plant fixed connection's lock core body (4), lock core body (4) surface has cup jointed lock shell (3), key (1) are including handle portion (12), dull and stereotyped knurling portion (11), just can drive lock core (2) at lock core body (4) internal rotation opening anti-theft lock in rectangular lockhole (5) of lock core (2) when dull and stereotyped knurling portion (11) are inserted completely, a serial communication port, still include elasticity spacing portion (7), elasticity spacing portion (7) one end is equipped with card convex part (71);

the lock is characterized in that the lock shell (3) is fixedly connected with a door plate, a rotatable control piece (6) is further arranged between the lock shell and the lock cylinder body (4), a strip-shaped lock hole (5) is formed in the center of the control piece (6), at least one protruding portion (61) is arranged on one surface of the control piece, which is in contact with the lock shell (3), a sliding groove (62) is formed in one surface, which is in contact with the lock cylinder body (4), of the control piece, the sliding groove (62) is internally suitable for placing the clamping protruding portion (71), the depth of the sliding groove (62) is from shallow to deep, a containing hole (41) is formed in the surface, which is in contact with the control piece (6), of the lock cylinder body (4), a limiting groove (21) is formed in the lock cylinder (2), and a avoidance hole (31) which is convenient for the protruding portion (61) to rotate is formed in the lock shell (3);

the key (1) further comprises a transition part (13) arranged between the handle part (12) and the flat plate-shaped embossed part (11), and the transition part (13) can penetrate through a circle with the width of the strip-shaped lock hole (5) as the diameter.

2. An anti-theft lock according to claim 1, characterized in that the sliding groove (62) is an arc-shaped groove, and the avoiding hole (31) is an arc-shaped hole having the same arc as the arc-shaped groove.

3. The anti-theft lock according to claim 2, wherein the elastic limiting portion (7) comprises a polygonal nail body (72), the nail body (72) and the clamping convex portion (71) are integrally formed, a pressure spring (73) is sleeved on the outer side of the nail body (72), and one end of the pressure spring (73) is fixedly connected with the clamping convex portion (71).

4. A theft-proof lock according to claim 3, characterized in that the containing hole (41) comprises a guiding hole (411) matching with the shape of the nail body (72), a round hole (412) is arranged on the guiding hole (411), a step is arranged on the joint surface of the round hole (412) and the guiding hole (411), and a containing notch (413) is arranged on the side surface of the round hole (412).

5. An anti-theft lock according to claim 4, characterized in that the control element (6) is in the form of a pie, the material of which is anti-drilling material.

6. An anti-theft lock according to claim 5, characterized in that the lock housing (3) material is an anti-drilling material.

7. An anti-theft lock according to claim 6, characterized in that the projection (61) is a cylindrical projection.

8. The antitheft lock according to claim 7, further comprising a knob (8), wherein the knob (8) is sleeved outside the lock case (3) and can rotate around the lock case (3), a control part (81) connected with the protruding part (61) is arranged in the knob (8), and a strip-shaped lock hole (5) is formed in the center of the knob (8).

9. An anti-theft lock according to claim 8, characterized in that the elongated locking hole (5) is centrally provided with a circular through hole (51).

10. An anti-theft lock according to claim 9, characterized in that the transition (13) is circular in cross section.