Anti-theft lock for safe case

By providing the first slider and the second slider on the lock case of the safe anti-theft lock, it is made to be stuck to the safe door in a locked state, the problem of easy destruction and removal of the lock case in the prior art is solved, and the installation stability of the lock case and the safety of the use of the anti-theft lock are improved.

CN223048603UActive Publication Date: 2025-07-01JIANGMEN SHISHANG HARDWARE IND
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Patent Information

Application Number
CN202421967793.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-14
Publication Date
2025-07-01
Estimated Expiration
2034-08-14

AI Technical Summary

Technical Problem

The lock shell of the existing safe anti-theft lock and the safe door are only fixedly connected by bolts, which are easily damaged and removed by external forces, resulting in the failure of the anti-theft effect and reducing the safety of use.

Method used

By providing the first slider and the second slider on the lock case, the lock case extends out of the lock case and is snapped to the safe door in a locked state, thereby improving the installation stability of the lock case.

Benefits of technology

It improves the installation stability of the locking shell in the safe door under locked state, reduces the possibility of directly removing the locking shell by external forces, thereby enhancing the safety of the safe anti-theft lock.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-theft lock for a safety box. The anti-theft lock comprises a lock shell, a locking mechanism and an anti-theft mechanism, the locking mechanism comprises a spring bolt, a shifting wheel, a shifting block and a first spring, the spring bolt is slidably connected to the lock shell, the shifting wheel is rotatably connected to the lock shell, the shifting block abuts against the spring bolt, the shifting block rotates forwards to drive the spring bolt to retract into the lock shell, and the first spring can drive the spring bolt to extend out of the lock shell; the anti-theft mechanism comprises a rotating seat, a first sliding block, a second sliding block, a second spring and a locking assembly, the rotating seat is connected to the shifting wheel, the first sliding block and the second sliding block are both slidably connected to the lock shell, the rotating seat rotates forwards to drive the first sliding block and the second sliding block to retract into the lock shell, and the second spring can drive the first sliding block and the second sliding block to extend out of the lock shell. The shifting wheel rotates forwards to drive the shifting block and the rotating seat to rotate forwards, and the locking assembly can limit forward rotation of the shifting wheel. The installation stability of the lock shell in the safe case door in the locking state can be improved, and therefore the use safety of the safe case anti-theft lock is improved.
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Description

Technical Field

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

[0002] The anti-theft lock for a safe is an appliance for locking the safe door, mainly composed of a lock case, a lock tongue, a dial wheel and a locking component, etc. The lock tongue, the dial wheel and the locking component are all arranged in the lock case. The lock case is fixedly installed on the safe door. By rotating the dial wheel, the lock tongue is driven to extend out of the lock case, so as to lock the safe door, and the position of the lock tongue is fixed by the locking component to limit the lock tongue from retracting into the lock case, so as to achieve the anti-theft effect. For the existing anti-theft lock for a safe, the lock case and the safe door are only fixedly connected by bolts. After the lock tongue is fixed, it is easy to directly damage and remove the lock case from the safe door by external force, so as to release the locked state of the safe door, lose the anti-theft effect, and reduce the use safety of the anti-theft lock for a safe. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. For this purpose, the utility model provides an anti-theft lock for a safe. By extending the first slider and the second slider out of the lock case to clamp and fix the lock case on the safe door, the installation stability of the lock case in the safe door in the locked state can be improved, thereby improving the use safety of the anti-theft lock for a safe.

[0004] According to an embodiment of the utility model, there is provided an anti-theft lock for a safe, including a lock case, a locking mechanism and an anti-theft mechanism; the locking mechanism includes a lock tongue, a dial wheel, a dial block and a first spring. The lock tongue is slidably connected to the lock case. The dial wheel is rotatably connected to the lock case. The dial block is connected to the dial wheel. The dial block abuts against the lock tongue. When the dial block rotates forward, it can drive the lock tongue to retract into the lock case along the horizontal direction. The first spring is fixedly arranged in the lock case. The two ends of the first spring respectively abut against the lock tongue and the lock case. The first spring can drive the lock tongue to extend out of the lock case along the horizontal direction; the anti-theft mechanism includes a rotating seat, a first slider, a second slider, a second spring and a locking component. The rotating seat is connected to the dial wheel. The first slider and the second slider are both slidably connected to the lock case. When the rotating seat rotates forward, it can drive the first slider and the second slider to move closer to each other along the vertical direction to retract the lock case. The second spring can drive the first slider and the second slider to move away from each other along the vertical direction to extend the lock case. When the dial wheel rotates forward, it can drive the dial block and the rotating seat to rotate forward. When the lock tongue, the first slider and the second slider all extend out of the lock case, the locking component can limit the forward rotation of the dial wheel.

[0005] A burglary-proof lock for a safe according to an embodiment of the present utility model has at least the following beneficial effects: When opening the door, by rotating the dial wheel forward, the dial block and the rotating seat are driven to rotate forward. The forward rotation of the dial block can drive the lock tongue to retract horizontally into the lock case. When the lock tongue moves, it drives the first spring to elastically deform. At the same time, the forward rotation of the rotating seat can drive the first slider and the second slider to move closer to each other vertically to retract into the lock case. When the first slider and the second slider move, they drive the second spring to elastically deform, thereby reaching the unlocked state. After closing the door, by releasing the dial block, the first spring elastically returns to drive the lock tongue to extend horizontally out of the lock case, and the second spring elastically returns to drive the first slider and the second slider to move away from each other vertically to extend out of the lock case. Then, the forward rotation of the dial wheel is restricted by the locking component to restrict the lock tongue, the first slider, and the second slider from retracting into the lock case, thereby reaching the locked state. After the first slider and the second slider extend out of the lock case, they can be clamped to the safe door to fix the position of the lock case, which can reduce the possibility of directly destroying and removing the lock case from the safe door by external force, so as to improve the installation stability of the lock case in the safe door in the locked state, thereby improving the use safety of the burglary-proof lock for the safe.

[0006] According to some embodiments of the present utility model, the dial block is movably sleeved on the dial wheel. A first card slot is formed on the side wall of the dial wheel, and a first card block is provided on the dial block. The side wall of the first card slot can abut against the first card block to drive the dial block to rotate forward.

[0007] According to some embodiments of the present utility model, the rotating seat is movably sleeved on the dial wheel. The rotating seat is provided with a second card block. The side wall of the first card slot can abut against the second card block to drive the rotating seat to rotate forward.

[0008] According to some embodiments of the present utility model, the locking component includes a stop block. The stop block is slidably connected to the lock case. A first positioning slot is formed on the first slider. The stop block can slide towards the first slider and be clamped into the first positioning slot to restrict the first slider from retracting into the lock case.

[0009] According to some embodiments of the present utility model, the locking component further includes a positioning block and a third spring. A second positioning slot is formed on the side wall of the stop block. The positioning block is slidably connected to the lock case. The positioning block is provided with a clamping portion. The third spring can drive the positioning block to move towards the stop block so that the clamping portion can be clamped into the second positioning slot.

[0010] According to some embodiments of the present utility model, both the first slider and the second slider are provided with first sliding grooves. The first sliding grooves are arranged horizontally. The rotating seat is connected with two shaft pins, and the shaft pins can abut against the side walls of the first sliding grooves.

[0011] According to some embodiments of the present utility model, the first slider and the second slider are both provided with second sliding grooves, the second sliding grooves are arranged in the vertical direction, and the lock housing is fixedly provided with two first guiding columns, and the first guiding columns are slidably connected to the second sliding grooves.

[0012] According to some embodiments of the present utility model, the lock housing is fixedly provided with a second guiding column, the lock tongue is provided with a guiding groove, the guiding groove is arranged in the horizontal direction, the second guiding column is slidably connected to the guiding groove, and the dial can abut against the second guiding column to limit the reverse rotation of the dial.

[0013] According to some embodiments of the present utility model, the anti-theft mechanism further includes a limiting rod and a fourth spring, the limiting rod is slidably connected to the lock housing, the limiting rod is provided with a positioning portion, the first slider is provided with a third positioning groove, and when the first slider retracts into the lock housing, the fourth spring can drive the limiting rod to extend out of the lock housing in the horizontal direction, so that the positioning portion can be engaged with the third positioning groove to limit the first slider from extending out of the lock housing.

[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0015] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0016] Figure 1 is a schematic structural diagram of the anti-theft lock of the safe according to the embodiment of the present utility model;

[0017] Figure 2 is another schematic structural diagram of the anti-theft lock of the safe according to the embodiment of the present utility model;

[0018] Figure 3 is a cross-sectional view of the anti-theft lock of the safe according to the embodiment of the present utility model;

[0019] Figure 4 is another cross-sectional view of the anti-theft lock of the safe according to the embodiment of the present utility model;

[0020] Figure 5 is a partial exploded view of the anti-theft lock of the safe according to the embodiment of the present utility model;

[0021] Figure 6 is another partial exploded view of the anti-theft lock of the safe according to the embodiment of the present utility model;

[0022] Figure 7It is a schematic structural diagram of the rotating seat of the anti-theft lock of the safe in the embodiment of the present utility model.

[0023] Explanation of reference numerals:

[0024] Locking mechanism 100, lock housing 110, first guide post 111, second guide post 112, lock tongue 120, dial wheel 130, first card slot 131, guide slot 132, dial block 140, first card block 141, shaft pin 142, first spring 150, fifth spring 160;

[0025] Anti-theft mechanism 200, rotating seat 210, second card block 211, first slider 220, first positioning slot 221, first sliding slot 222, second sliding slot 223, third positioning slot 224, second slider 230, second spring 240, locking assembly 250, stop block 251, positioning block 252, third spring 253, clamping portion 254, second positioning slot 255, limiting rod 260, positioning portion 261, fourth spring 270. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0028] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0029] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0030] It can be understood that with reference toFigures 1 to 7 , an anti-theft lock for a safe of the present utility model, comprising a lock case 110, a locking mechanism 100 and an anti-theft mechanism 200; the locking mechanism 100 includes a lock tongue 120, a dial wheel 130, a dial block 140 and a first spring 150, the lock tongue 120 is slidably connected to the lock case 110, the dial wheel 130 is rotatably connected to the lock case 110, the dial block 140 is connected to the dial wheel 130, the dial block 140 abuts against the lock tongue 120, the forward rotation of the dial block 140 can drive the lock tongue 120 to retract into the lock case 110 in the horizontal direction, the first spring 150 is fixedly arranged in the lock case 110, and the two ends of the first spring 150 respectively abut against the lock tongue 120 and the lock case 110, and the first spring 150 can drive the lock tongue 120 to extend out of the lock case 110 in the horizontal direction; the anti-theft mechanism 200 includes a rotating seat 210, a first slider 220, a second slider 230, a second spring 240 and a locking component 250, the rotating seat 210 is connected to the dial wheel 130, the first slider 220 and the second slider 230 are both slidably connected to the lock case 110, the forward rotation of the rotating seat 210 can drive the first slider 220 and the second slider 230 to move closer to each other in the vertical direction to retract into the lock case 110, the second spring 240 can drive the first slider 220 and the second slider 230 to move away from each other in the vertical direction to extend out of the lock case 110, the forward rotation of the dial wheel 130 can drive the dial block 140 and the rotating seat 210 to rotate forward, and when the lock tongue 120, the first slider 220 and the second slider 230 all extend out of the lock case 110, the locking component 250 can limit the forward rotation of the dial wheel 130.

[0031] When opening the door, by rotating the dial 130 in the forward direction, the dial block 140 and the rotating base 210 are driven to rotate forward. The forward rotation of the dial block 140 can drive the locking tongue 120 to retract horizontally into the lock housing 110. When the locking tongue 120 moves, it drives the first spring 150 to elastically deform. At the same time, the forward rotation of the rotating base 210 can drive the first slider 220 and the second slider 230 to move closer to each other vertically to retract into the lock housing 110. When the first slider 220 and the second slider 230 move, they drive the second spring 240 to elastically deform, thus reaching the unlocked state. After closing the door, by releasing the dial block 140, the first spring 150 elastically returns to drive the locking tongue 120 to extend horizontally out of the lock housing 110, and the second spring 240 elastically returns to drive the first slider 220 and the second slider 230 to move away from each other vertically to extend out of the lock housing 110. Then, the forward rotation of the dial 130 is restricted by the locking component 250 to restrict the retraction of the locking tongue 120, the first slider 220, and the second slider 230 into the lock housing 110, thus reaching the locked state. After the first slider 220 and the second slider 230 extend out of the lock housing 110, they can be clamped to the safe door to fix the position of the lock housing 110, which can reduce the possibility of directly destroying and removing the lock housing 110 from the safe door by external force, so as to improve the installation stability of the lock housing 110 in the safe door in the locked state, thereby improving the use safety of the anti-theft lock of the safe.

[0032] It should be noted that the dial 130 is used to connect the lock core, and the lock core is connected to the handle. By rotating the handle, the lock core is driven to rotate, thereby driving the dial 130 to rotate.

[0033] Since the dial block 140 abuts against the locking tongue 120, when the first spring 150 drives the locking tongue 120 to extend horizontally out of the lock housing 110, the locking tongue 120 can abut against and drive the dial block 140 to rotate in the reverse direction.

[0034] When the first slider 220 and the second slider 230 move away from each other vertically, they can drive the rotating base 210 to rotate in the reverse direction.

[0035] In the safe door, there are limiting grooves that can catch the first slider 220 and the second slider 230. The position of the lock housing 110 in the safe door is positioned by the first slider 220 and the second slider 230 being caught in the limiting grooves.

[0036] The locking component 250 can restrict the forward rotation of the dial 130 by means of clamping or abutting.

[0037] It can be understood that with reference to Figure 2 、 Figure 4 and Figure 6, the shifting block 140 is movably sleeved on the shifting wheel 130. A first clamping groove 131 is formed in the side wall of the shifting wheel 130, and the shifting block 140 is provided with a first clamping block 141. The side wall of the first clamping groove 131 can abut against the first clamping block 141 to drive the shifting block 140 to rotate forward. When the shifting wheel 130 rotates forward, the side wall of the first clamping groove 131 abuts against the first clamping block 141 to drive the shifting block 140 to rotate forward, so that the locking tongue 120 can be driven to retract into the lock housing 110 in the horizontal direction to reach the unlocked state. Moreover, when the first spring 150 drives the locking tongue 120 to extend out of the lock housing 110 in the horizontal direction, the locking tongue 120 can drive the shifting block 140 to rotate reversely. By abutting the first clamping block 141 against the side wall of the first clamping groove 131, the shifting wheel 130 can be driven to rotate reversely, so as to facilitate the control of the rotation of the shifting wheel 130 and the shifting block 140.

[0038] Specifically, referring to Figure 4 、 Figure 6 and Figure 7 , the rotating seat 210 is movably sleeved on the shifting wheel 130. The rotating seat 210 is provided with a second clamping block 211. The side wall of the first clamping groove 131 can abut against the second clamping block 211 to drive the rotating seat 210 to rotate forward. When the shifting wheel 130 rotates forward, the side wall of the first clamping groove 131 abuts against the second clamping block 211 to drive the rotating seat 210 to rotate forward, so that the first sliding block 220 and the second sliding block 230 can be driven to move closer to each other in the vertical direction to retract into the lock housing 110. At the same time, when the first sliding block 220 and the second sliding block 230 move away from each other in the vertical direction to extend out of the lock housing 110, the rotation angle of the rotating seat 210 can be positioned by fixing the position of the first sliding block 220 or the second sliding block 230, so as to position the position of the second clamping block 211. By abutting the second clamping block 211 against the side wall of the first clamping groove 131, the forward rotation of the shifting wheel 130 can be restricted, so as to restrict the locking tongue 120, the first sliding block 220 and the second sliding block 230 from retracting into the lock housing 110 to reach the locked state.

[0039] Specifically, referring to Figures 1 to 3 、 Figure 5, the locking assembly 250 includes a stop block 251 which is slidably connected to the lock housing 110. The first slider 220 is provided with a first positioning groove 221. The stop block 251 can slide towards the first slider 220 and snap into the first positioning groove 221 to limit the first slider 220 from retracting into the lock housing 110. When the lock tongue 120, the first slider 220 and the second slider 230 all extend out of the lock housing 110, by sliding the stop block 251 towards the first slider 220 and snapping it into the first positioning groove 221, and by the stop block 251 abutting against the side wall of the first positioning groove 221 to limit the first slider 220 from retracting into the lock housing 110, the rotation angle of the rotating seat 210 can be positioned. And by the second clamping block 211 abutting against the side wall of the first clamping groove 131, the forward rotation of the dial 130 can be restricted, thereby restricting the lock tongue 120, the first slider 220 and the second slider 230 from retracting into the lock housing 110 to reach the locked state.

[0040] It should be noted that the stop block 251 is driven to move by turning the key, that is, the locked and unlocked states are achieved by turning the key.

[0041] Specifically, referring to Figures 1 to 3 , Figure 5 , the locking assembly 250 further includes a positioning block 252 and a third spring 253. The side wall of the stop block 251 is provided with a second positioning groove 255. The positioning block 252 is slidably connected to the lock housing 110. The positioning block 252 is provided with a clamping portion 254. The third spring 253 can drive the positioning block 252 to move towards the stop block 251 so that the clamping portion 254 can snap into the second positioning groove 255. When the stop block 251 slides away from the first slider 220 to disengage from the first positioning groove 221, the third spring 253 drives the positioning block 252 to move towards the stop block 251, enabling the positioning block 252 to abut against and slide along the side wall of the stop block 251, so that the clamping portion 254 can snap into the second positioning groove 255. By restricting the movement of the stop block 251 through the second positioning groove 255, the possibility of the stop block 251 being accidentally locked by accidentally sliding into the first positioning groove 221 can be reduced, thereby improving the use safety of the anti-theft lock of the safe.

[0042] It should be noted that when the force of turning the key is greater than the elastic force of the third spring 253, the positioning block 252 can abut against and slide out of the second positioning groove 255 along the side wall of the stop block 251, thereby driving the stop block 251 to slide towards the first slider 220 and snap into the first positioning groove 221 to reach the locked state.

[0043] It can be understood that referring to Figures 1 to 3The first slider 220 and the second slider 230 are both provided with a first slide groove 222, and the first slide groove 222 is arranged in the horizontal direction. The rotating seat 210 is connected to two shaft pins 142, and the shaft pins 142 can abut against the side wall of the first slide groove 222. Since the first slide groove 222 is arranged in the horizontal direction, when the rotating seat 210 rotates, the two shaft pins 142 rotate synchronously, and the shaft pins 142 can drive the first slider 220 and the second slider 230 to move in the vertical direction by abutting against the side wall of the first slide groove 222.

[0044] It is understandable that, referring to Figures 1 to 3 The first slider 220 and the second slider 230 are both provided with a second slide groove 223, and the second slide groove 223 is arranged in the vertical direction. The lock housing 110 is fixedly provided with two first guide posts 111, and the first guide posts 111 are slidably connected to the second slide groove 223. Since the second slide groove 223 is arranged in the vertical direction, the first guide posts 111 are slidably connected to the second slide groove 223, and the first slider 220 and the second slider 230 are guided to move in the vertical direction by the first guide posts 111, the stability of the movement of the first slider 220 and the second slider 230 can be improved, so as to improve the smoothness of locking and unlocking.

[0045] It is understandable that, referring to Figures 1 to 3 The lock housing 110 is fixedly provided with a second guide column 112, and the lock tongue 120 is provided with a guide groove 132, which is arranged in the horizontal direction. The second guide column 112 is slidably connected to the guide groove 132, and the shift block 140 can abut against the second guide column 112 to limit the reverse rotation of the shift block 140. Since the guide groove 132 is arranged in the horizontal direction, the second guide column 112 is slidably connected to the guide groove 132, and the second guide column 112 guides the lock tongue 120 to move in the horizontal direction, which can improve the stability of the movement of the lock tongue 120, so as to improve the smoothness of locking and unlocking, and the shift block 140 abuts against the second guide column 112 to limit the reverse rotation of the shift block 140, and the reverse rotation position of the shift block 140 can be positioned.

[0046] It is understandable that, referring to Figures 1 to 3 , Figure 5, the anti-theft mechanism 200 further includes a limit rod 260 and a fourth spring 270. The limit rod 260 is slidably connected to the lock housing 110. The limit rod 260 is provided with a positioning portion 261. The first slider 220 is provided with a third positioning groove 224. When the first slider 220 retracts into the lock housing 110, the fourth spring 270 can drive the limit rod 260 to extend out of the lock housing 110 in the horizontal direction, so that the positioning portion 261 is snapped into the third positioning groove 224 to limit the first slider 220 from extending out of the lock housing 110. After opening the door, the fourth spring 270 drives the limit rod 260 to extend out of the lock housing 110 in the horizontal direction, so that the positioning portion 261 can be snapped into the third positioning groove 224 to limit the first slider 220 from extending out of the lock housing 110, which is convenient for the disassembly, replacement of the anti-theft lock of the safe after opening the door. When closing the door, the limit rod 260 abuts against the door frame of the safe, so that the limit rod 260 retracts into the lock housing 110 in the horizontal direction, so that the positioning portion 261 disengages from the third positioning groove 224 to unlock the position of the first slider 220, and then the first slider 220 can extend out of the lock housing 110 under the drive of the second spring 240 to be clamped to the safe door, without affecting the normal opening and closing of the anti-theft lock of the safe.

[0047] It should be noted that, referring to Figure 1 , Figure 4 and Figure 6 , the locking mechanism 100 further includes a fifth spring 160. The fifth spring 160 is sleeved on the dial 130. The two ends of the fifth spring 160 respectively abut against the lock housing 110 and the first clamping block 141. The fifth spring 160 can drive the dial block 140 to rotate in the reverse direction, so that the dial block 140 rotates quickly and resets.

[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A safe anti-theft lock, characterized in that: include: The locking mechanism comprises a lock housing, a lock tongue, a dial wheel, a dial block and a first spring, wherein the lock tongue is slidably connected to the lock housing, the dial wheel is rotationally connected to the lock housing, the dial block is connected to the dial wheel, the dial block abuts against the lock tongue, and the positive rotation of the dial block can drive the lock tongue to retract into the lock housing in a horizontal direction, the first spring is fixedly arranged on the lock housing, the two ends of the first spring abut against the lock tongue and the lock housing respectively, and the first spring can drive the lock tongue to extend out of the lock housing in a horizontal direction; The anti-theft mechanism includes a rotating seat, a first slider, a second slider, a second spring and a locking assembly, wherein the rotating seat is connected to the thumb wheel, and the first slider and the second slider are both slidably connected to the lock housing. The positive rotation of the rotating seat can drive the first slider and the second slider to move closer to each other in a vertical direction to retract the lock housing, and the second spring can drive the first slider and the second slider to move away from each other in a vertical direction to extend out of the lock housing. The positive rotation of the thumb wheel can drive the thumb block and the rotating seat to rotate positively, and when the lock tongue, the first slider and the second slider all extend out of the lock housing, the locking assembly can limit the positive rotation of the thumb wheel.

2. The safe anti-theft lock according to claim 1, characterized in that: The shift block is movably mounted on the dial wheel, a first slot is formed on the side wall of the dial wheel, and the shift block is provided with a first clamping block. The side wall of the first slot can abut against the first clamping block to drive the shift block to rotate in the forward direction.

3. The anti-theft lock for a safe according to claim 2, characterized in that: The rotating seat is movably sleeved on the thumbwheel, and the rotating seat is provided with a second clamping block. The side wall of the first clamping slot can abut against the second clamping block to drive the rotating seat to rotate in the forward direction.

4. The anti-theft lock for a safe according to claim 3, characterized in that: The locking assembly includes a stop block, which is slidably connected to the lock housing. The first slider is provided with a first positioning groove. The stop block can slide toward the first slider and snap into the first positioning groove to limit the first slider from retracting into the lock housing.

5. The anti-theft lock for a safe according to claim 4, characterized in that: The locking assembly also includes a positioning block and a third spring. The side wall of the stop block is provided with a second positioning groove. The positioning block is slidably connected to the lock housing. The positioning block is provided with a clamping portion. The third spring can drive the positioning block to move in a direction close to the stop block so that the clamping portion can be clamped into the second positioning groove.

6. The anti-theft lock for a safe according to claim 1, characterized in that: The first sliding block and the second sliding block are both provided with a first sliding groove, the first sliding groove is arranged in a horizontal direction, the rotating seat is connected to two shaft pins, and the shaft pins can abut against the side wall of the first sliding groove.

7. The anti-theft lock for a safe according to claim 1, characterized in that: The first sliding block and the second sliding block are both provided with a second sliding groove, the second sliding groove is arranged in a vertical direction, the lock housing is fixedly provided with two first guide columns, and the first guide columns are slidably connected to the second sliding groove.

8. The anti-theft lock for a safe according to claim 1, characterized in that: The lock housing is fixedly provided with a second guide column, the lock tongue is provided with a guide groove, the guide groove is arranged in a horizontal direction, the second guide column is slidably connected to the guide groove, and the shift block can abut against the second guide column to limit the reverse rotation of the shift block.

9. The anti-theft lock for a safe according to claim 5, characterized in that: The anti-theft mechanism also includes a limit rod and a fourth spring. The limit rod is slidably connected to the lock shell. The limit rod is provided with a positioning portion. The first slider is provided with a third positioning groove. When the first slider is retracted into the lock shell, the fourth spring can drive the limit rod to extend out of the lock shell in a horizontal direction, so that the positioning portion can be inserted into the third positioning groove to limit the first slider from extending out of the lock shell.