Anti-theft lock

Abstract

The utility model relates to the technical field of locks, and discloses an anti-theft lock which comprises a lock body A and a lock body B. A cushion block is fixedly installed on the lower surface of the lock body A. A first ejector block is fixedly installed on the lower surface of the cushion block. Two lock body clamping blocks are fixedly installed on the surface of the outer wall of the lock body A. The two lock body clamping blocks are installed on the left side and the right side of the lock body A respectively. The lock heads are fixedly installed on the surface of the rear end of the lock body A and installed in the middle of the lock body A. The lock heads are fixedly installed on the surfaces of the outer walls of the lock heads, the number of the lock heads is two, and the lock heads are fixedly installed on the left side and the right side of the lock heads respectively. A lock groove is formed in the lock body B and installed in the middle of the lock body B. A second fixing block is fixedly installed on the surface of the outer wall of the lock body B. The two second fixing blocks are installed on the left side and the right side of the lock body B respectively, the second fixing blocks and the two fixing rods are movably installed, and the number of the fixing rods is two. The device is simple in structure and convenient to operate, and has good use value.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to an anti-theft lock. Background Art

[0002] Ancient Chinese locks not only still have practical value, but also become precious historical evidence. They reflect the historical development of woodworking and hardware crafts from one aspect. From the perspective of its material, design, mechanical structure, mechanism structure, carving, calligraphy and painting, locks involve many disciplines, including woodworking, smelting and casting, forging and cold working, fine arts, calligraphy and painting, copper and wood carving, as well as dynamics, physics, geometry, psychology and other disciplines. They can all be found in locks, reflecting the social, political, economic, cultural, living customs and other aspects of the past dynasties. Locks refer to appliances that have a sealing function, including locks, keys and their accessories. Generally interpreted as "sealing devices that must be opened with a key", locks can be opened with light, electricity, magnetism, sound and fingerprint commands in addition to keys.

[0003] The application number is 201910898645.4, which discloses an anti-theft lock, including a key and a lock body, the key including a key handle and a key body, the lock body including an outer lock shell, a middle lock shell and a lock core, the lock core is set in the middle lock shell, the middle lock shell is set in the outer lock shell, the lock core is provided with a lock hole for inserting the key body, and the key body is characterized in that the key body is provided with irregularly arranged grooves, the lock core is provided with a pin hole, the pin hole is connected with the lock hole, a pin is installed in the pin hole, the pin has an insertion part and a pressure part, a convex body is provided between the insertion part and the pressure part, the shape of the insertion part matches the shape of the groove, a torsion compression spring is provided on the pressure part, the convex body is provided with a torsion compression spring, the circumference of the middle lock shell is provided with an annular groove, the pressure part of the pin matches the annular groove, and a wide groove is provided in the annular groove. The invention has a simple structure, a reasonable design, and can greatly improve the anti-theft performance of the lock.

[0004] An anti-theft lock disclosed in the above document has the following defects: during the use of this anti-theft lock, as the use time increases, the keyhole of the lock is exposed to the outside and corroded by moisture in the air, which may cause the compression spring to break during use, or the compression spring is subjected to too much force, resulting in a large deformation of the spring, so that the position of the compression spring is misplaced in the keyhole, making the lock unable to be opened.

[0005] It can be seen from this that the existing anti-theft lock has the problem that the force applied to the spring is too large, resulting in a large deformation of the compression spring and a misalignment of the compression spring position. It is necessary to improve the existing deficiencies and provide a new anti-theft lock. Utility Model Content

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is an anti-theft lock, comprising an A lock body and a B lock body, wherein a cushion block is fixedly installed on the lower surface of the A lock body, a No. 1 top block is fixedly installed on the lower surface of the cushion block, a lock body card block is fixedly installed on the outer wall surface of the A lock body, two of the lock body card blocks are respectively installed on the left and right sides of the A lock body, a lock head is fixedly installed on the rear end surface of the A lock body, the lock head is installed in the middle part of the A lock body, the lock head is fixedly installed on the outer wall surface of the lock head, the two lock heads are respectively fixedly installed on the left and right sides of the lock head, a lock groove is provided inside the B lock body, the lock groove is installed in the middle part of the B lock body, and the outer wall surface of the B lock body is fixedly installed A No. 2 fixed block is fixedly installed, and the No. 2 fixed block consists of two No. 2 fixed blocks respectively installed on the left and right sides of the B lock body. The No. 2 fixed block is movably installed with the fixed rod. There are two fixed rods, and the two fixed rods are respectively movably installed with the B lock body on the B lock body. An upper movable column is fixedly installed on the middle part of the left end surface of the fixed rod, and the upper movable column is movably installed with the connecting rod. The connecting rod is fixedly installed on the upper end surface of the connecting rod, and the upper surface of the lower end of the connecting rod is fixedly installed with the lower knob. The lower surface of the lower end of the connecting rod is fixedly installed with the No. 2 top block through the lower movable column, and the lower movable column is fixedly installed on the middle part of the No. 2 top block.

[0008] Furthermore, the No. 2 top block is made of the same material as the No. 1 top block, a slide groove is fixedly installed on the upper end of the No. 2 top block, the upper end surface of the slide groove is movably installed on the lower end of the B lock body, and the length of the slide groove is greater than the bottom end of the B lock body.

[0009] Furthermore, a lock column is fixedly installed on the outer wall surface of the lock head, a compression spring rod is fixedly installed on the rear end of the lock column, a compression spring is movably installed on the outer wall surface of the compression spring rod, and a No. 1 fixing block is fixedly installed on the top surface of the left end of the compression spring rod, and there are two No. 1 fixing blocks.

[0010] Furthermore, an upper movable column is fixedly mounted on the middle portion of the right surface of the fixing rod, and the upper movable column and the connecting rod are movably mounted via upper knobs, and there are two upper knobs.

[0011] Furthermore, a No. 2 top block is fixedly mounted on the lower surface of the slide slot, a key body is fixedly mounted on the rear end surface of the No. 2 top block, and the material of the key body is the same as that of the No. 2 top block.

[0012] Furthermore, a mounting block is fixedly mounted on the rear end surface of the B lock body, and the lower end of the mounting block does not contact the slide groove.

[0013] The utility model has the following beneficial effects:

[0014] (1) The utility model can fix the lock head and the lock groove by setting a sliding fixing device, and the lock head is equipped with a compression spring and a fixing block, which can better fix the A lock body and the B lock body in the lock groove through the lock head. In addition, the compression spring of the device has a small contact surface with the external environment and is not easy to be misplaced.

[0015] (2) The utility model can easily separate the lock head on the A lock body from the lock groove on the B lock body by arranging the key body at the rear end of the top block to move forward, and the operation is simple.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the fixed compression spring structure of the main structure of the utility model;

[0020] Figure 3 It is a bottom view schematic diagram of the main body of the overall structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the back of the overall structural body of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. A lock body; 101. cushion block; 102. No. 1 top block; 2. lock body clamping block; 201. lock head; 202. lock column; 203. No. 1 fixed block; 204. compression spring rod; 205. compression spring; 3. B lock body; 301. lock slot; 302. fixing rod; 303. No. 2 fixed block; 304. upper movable column; 305. connecting rod; 306. lower movable column; 307. lower knob; 308. upper knob; 309. slide slot; 4. mounting block; 401. key body; 402. No. 2 top block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 As shown, the utility model is an anti-theft lock, including a lock body A 1 and a lock body B 3, characterized in that: a cushion block 101 is fixedly installed on the lower surface of the lock body A 1, a top block 102 is fixedly installed on the lower surface of the cushion block 101, a lock body card 2 is fixedly installed on the outer wall surface of the lock body A 1, two lock body card 2 are respectively installed on the left and right sides of the lock body A 1, a lock head 201 is fixedly installed on the rear end surface of the lock body A 1, the lock head 201 is installed in the middle part of the lock body A 1, the lock head 201 is fixedly installed on the outer wall surface of the lock head 201, the lock head 201 is respectively fixedly installed on the left and right sides of the lock head 201, a lock groove 301 is present inside the lock body B 3, the lock groove 301 is installed in the middle part of the lock body B 3, and a No. 2 is fixedly installed on the outer wall surface of the lock body B 3 The fixing block 303, the second fixing block 303 is respectively installed on the left and right sides of the B lock body 3, the second fixing block 303 is movably installed with the fixing rod 302, there are two fixing rods 302, the two fixing rods 302 are respectively movably installed with 302B lock body 3 on the B lock body 3, the upper movable column 304 is fixedly installed on the middle part of the left end surface of the fixing rod 302, the upper movable column 304 and the connecting rod 305 are movably installed, the connecting rod 305 is fixedly installed on the upper end surface of the connecting rod 305, the upper surface of the lower end of the connecting rod 305 is fixedly installed with the lower knob 307, the lower surface of the lower end of the connecting rod 305 is fixedly installed with the second top block 402 through the lower movable column 306, and the lower movable column 306 is fixedly installed on the middle part of the No. 2 top block 402.

[0026] The second top block 402 is made of the same material as the first top block 102 . The upper end of the second top block 402 is fixedly installed with a slide groove 309 . The upper end surface of the slide groove 309 is movably installed with the lower end of the B lock body 3 . The length of the slide groove 309 is greater than the bottom end of the B lock body 3 .

[0027] A lock column 202 is fixedly installed on the outer wall surface of the lock head 201, a compression spring rod 204 is fixedly installed on the rear end of the lock column 202, a compression spring 205 is movably installed on the outer wall surface of the compression spring rod 204, and a No. 1 fixing block 203 is fixedly installed on the top surface of the left end of the compression spring rod 204, and there are two No. 1 fixing blocks 203.

[0028] An upper movable column 304 is fixedly mounted on the middle portion of the right surface of the fixed rod 302 . The upper movable column 304 and the connecting rod 305 are movably mounted via upper knobs 308 . There are two upper knobs 308 .

[0029] The lower surface of the slide groove 309 is fixedly mounted with the second top block 402 , and the rear end surface of the second top block 402 is fixedly mounted with the key body 401 . The material of the key body 401 is the same as that of the second top block 402 .

[0030] The rear end surface of the B lock body 3 is fixedly mounted with a mounting block 4 , and the lower end of the mounting block 4 is not in contact with the slide groove 309 .

[0031] When in use, first align the lock head 201 on the A lock body 1 with the lock groove 301 on the B lock body 3, then move the A lock body 1 toward the B lock body 3, and then the lock head 201 enters the lock groove 301 and the compression spring 205 on the lock head 201 is compressed by the No. 1 fixing block 203, and then the compression spring 205 will provide a reverse elastic force to the No. 1 fixing block 203, so that the No. 1 fixing block 203 is fixed to the inner wall of the lock groove 301, and at the same time, the pad 101 at the lower end of the A lock body 1 slides on the slide groove 309 and fits on the surface of the B lock body 3, and then the connecting rod 305 moves upward, so that the lock body fastener 2 on the A lock body 1 and the No. 2 fixing block 303 on the B lock body 3 are fixed through the fixing rod 302, and finally the key body 401 on the No. 2 top block 402 moves forward to make the fixing rod 302 move downward, and at the same time the No. 2 top block 402 pushes the No. 1 top block 102 to move so that the A lock body 1 and the B lock body 3 are separated.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-theft lock, comprising a lock body A (1) and a lock body B (3), characterized in that: A cushion block (101) is fixedly mounted on the lower surface of the A lock body (1), a No. 1 top block (102) is fixedly mounted on the lower surface of the cushion block (101), a lock body card block (2) is fixedly mounted on the outer wall surface of the A lock body (1), two of the lock body card blocks (2) are respectively mounted on the left and right sides of the A lock body (1), a lock head (201) is fixedly mounted on the rear end surface of the A lock body (1), the lock head (201) is mounted in the middle part of the A lock body (1), a lock head (201) is fixedly mounted on the outer wall surface of the lock head (201), the lock head (201) is respectively fixedly mounted on the left and right sides of the lock head (201), a lock slot (301) is provided inside the B lock body (3), the lock slot (301) is mounted in the middle part of the B lock body (3), a No. 2 fixed block (303) is fixedly mounted on the outer wall surface of the B lock body (3), the No. 2 fixed block ( The second fixing block (303) is movably mounted on the fixing rod (302), and the fixing rod (302) is two. The two fixing rods (302) are movably mounted on the 302B lock body (3) on the B lock body (3). An upper movable column (304) is fixedly mounted on the middle part of the left end surface of the fixing rod (302). The upper movable column (304) is movably mounted on the connecting rod (305). The connecting rod (305) is fixedly mounted on the upper end surface of the connecting rod (305). The upper surface of the lower end of the connecting rod (305) is fixedly mounted on the lower knob (307). The lower surface of the lower end of the connecting rod (305) is fixedly mounted on the second top block (402) through a lower movable column (306). The lower movable column (306) is fixedly mounted on the middle part of the second top block (402).

2. The anti-theft lock according to claim 1, characterized in that: The second top block (402) is made of the same material as the first top block (102); a slide groove (309) is fixedly mounted on the upper end of the second top block (402); an upper end surface of the slide groove (309) is movably mounted on the lower end of the B lock body (3); and a length of the slide groove (309) is greater than a bottom end of the B lock body (3).

3. The anti-theft lock according to claim 1, characterized in that: A lock column (202) is fixedly mounted on the outer wall surface of the lock head (201); a compression spring rod (204) is fixedly mounted on the rear end of the lock column (202); a compression spring (205) is movably mounted on the outer wall surface of the compression spring rod (204); a No. 1 fixing block (203) is fixedly mounted on the top surface of the left end of the compression spring rod (204); and there are two No. 1 fixing blocks (203).

4. The anti-theft lock according to claim 1, characterized in that: An upper movable column (304) is fixedly mounted on the middle portion of the right surface of the fixed rod (302). The upper movable column (304) and the connecting rod (305) are movably mounted via upper knobs (308). There are two upper knobs (308).

5. The anti-theft lock according to claim 2, characterized in that: A second top block (402) is fixedly mounted on the lower surface of the slide groove (309), and a key body (401) is fixedly mounted on the rear end surface of the second top block (402). The material of the key body (401) is the same as that of the second top block (402).

6. The anti-theft lock according to claim 1, characterized in that: A mounting block (4) is fixedly mounted on the rear end surface of the B lock body (3), and the lower end of the mounting block (4) does not contact the slide groove (309).

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