Anti-theft lock resistant to impact and free of resistance in opening

Abstract

The invention relates to the technical field of anti-theft locks, in particular to an impact-resistant and resistance-free anti-theft lock which comprises a shell, an anti-collision assembly, a linkage assembly, a safety assembly, a latch bolt assembly, a driving assembly and a pressing assembly. The impact load can be conducted to the shell and the door frame through the anti-collision assembly, the situation that the spring bolt and an internal transmission part are impacted to deform and lose efficacy is avoided, in addition, rigid limiting of the straight groove can ensure that the structure is free of displacement and looseness in the locking state, the transmission structure is in rolling fit, clamping and extra resistance are avoided, the stable opening and closing performance can still be kept after long-term use, and the service life is prolonged. Due to the arrangement of the driving structure, the joint control function of double-structure synchronous unlocking can be achieved through single rotation of the door handle, whole parts of a lock body can be machined and assembled in a standardized mode, the process control difficulty is low during factory production, machining procedures can be reduced, the production efficiency and the product yield can be improved, and the production cost is reduced while the structure is simplified and the cost is reduced. The strength, durability and anti-theft performance of the lock body are comprehensively improved.

Description

Technical Field

[0001] This invention relates to the field of anti-theft lock technology, specifically an impact-resistant anti-theft lock that opens without resistance. Background Technology

[0002] Anti-theft locks are a core component of building security systems, widely used in various security scenarios such as residential entrance doors, commercial security doors, and safes. Their anti-theft performance, ease of use, and manufacturing cost directly determine their market competitiveness and application value. With the continuous upgrading of social security needs, the market has placed higher demands on the resistance to forced entry, smooth operation, and structural durability of mechanical anti-theft locks. Structural optimization and performance upgrades have become the core R&D directions for the mechanical anti-theft lock industry.

[0003] However, most conventional mechanical anti-theft locks currently use a single, straight-out locking structure with a single bolt. When locked, the force is concentrated at a single point on the bolt. When subjected to violent impact, the load cannot be effectively distributed and transmitted, easily leading to deformation and failure of the bolt and internal transmission components, making it difficult to resist violent impacts. At the same time, the smoothness and durability of opening and closing are poor. The core transmission parts of existing lock bodies mostly use sliding friction cooperation. After long-term use, the wear of parts accelerates, the resistance to opening and closing operations continues to increase, and the problem of handle linkage jamming is prone to occur. After wear, the structure is also prone to loosening and slippage, significantly shortening the product's lifespan. Moreover, the existing lock body structure mostly relies on welding processes for forming, which are complicated and difficult to control in factory production. Stress concentration and cracking are prone to occur at the welded parts, making it difficult to guarantee product yield and increasing the overall production cost. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides an impact-resistant, unobstructed anti-theft lock.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an impact-resistant and unobstructed anti-theft lock, comprising a shell, an anti-collision component installed on the shell, and a drive component installed on the shell; The anti-collision assembly includes two mounting shafts rotatably connected to the housing and an anti-collision block rotatably connected to the mounting shafts. An adjusting shaft is rotatably connected to the anti-collision block. Two toothed plates are slidably connected to the housing. The toothed plates are provided with inclined grooves and straight grooves. The housing is provided with a guide groove. The adjusting shaft is in rolling engagement with the guide groove. A first rotating shaft is rotatably connected to the housing. A gear is mounted on the first rotating shaft. The toothed plates mesh with the gear. A first connecting shaft is rotatably connected to the housing. A rotating rod is fixedly connected to the first connecting shaft. A first drive shaft is rotatably connected to the rotating rod. One of the toothed plates is provided with a drive groove. The first drive shaft is in rolling engagement with the drive groove. A second connecting shaft is rotatably connected to the rotating rod. The second connecting shaft is driven by a drive assembly.

[0006] Specifically, a first guide shaft is rotatably connected to the outer casing, and the toothed plate is in rolling engagement with the first guide shaft.

[0007] Specifically, the drive assembly includes a roller rotatably connected to the housing and a push rod rotatably connected to the roller, a second connecting shaft rotatably connected to the push rod, and a second stop fixedly connected to the push rod.

[0008] Specifically, a second drive shaft is rotatably connected to the outer casing, a drive block is fixedly connected to the second drive shaft, a through groove is provided on the push rod, the drive block is slidably connected to the through groove, and a toggle block is fixedly connected to the second drive shaft.

[0009] Specifically, one of the toothed plates and the rotating rod are linked by a linkage assembly. The linkage assembly includes a fixed shaft rotatably connected to the rotating rod and a guide plate rotatably connected to the fixed shaft. A fixing block is fixedly connected to the guide plate, and a mounting base is fixedly connected to the outer shell.

[0010] Specifically, a torsion spring is fixedly connected between the mounting base and the fixing block, a guide post is rotatably connected to the outer shell, the guide post is rollingly connected to the guide plate, and a first stop is fixedly connected to the guide plate.

[0011] Specifically, the outer casing is provided with a safety assembly, which includes a guide rod fixedly connected to the outer casing and a safety block slidably connected to the guide rod. A rotating block is rotatably connected to the outer casing, and a lever is fixedly connected to the rotating block. The lever drives the safety block to slide.

[0012] Specifically, the outer casing is provided with a slanted tongue assembly, which includes a slider slidably connected to the outer casing and a fixed rod rotatably connected to the slider. A locking tongue is installed on the fixed rod. A connecting rod is fixedly connected to the outer casing. A first tension spring is installed between the connecting rod and the slider. A stop rod is slidably connected to the outer casing. A push post is fixedly connected to the stop rod. A sliding groove is provided on the stop rod. A second tension spring is installed between the stop rod and the roller.

[0013] Specifically, the outer casing is provided with a pressing component, which includes a second guide shaft rotatably connected to the outer casing and a connecting rod rollingly connected to the second guide shaft. A second rotating shaft is rotatably connected to the outer casing, and a pressing block is fixedly connected to the second rotating shaft.

[0014] Specifically, the pressure block abuts against the slider, a linkage shaft is rotatably connected to the pressure block, and the connecting rod is rotatably connected to the linkage shaft.

[0015] The beneficial effects of this invention are: (1) The anti-theft lock described in this invention is an impact-resistant and unobstructed lock with an anti-collision component on the outer shell. The anti-collision component can transmit the impact load to the outer shell and the door frame, preventing the lock tongue and internal transmission components from being deformed and failing due to impact. At the same time, the force during locking can be distributed to the two tooth plates, which greatly improves the overall impact and pressure resistance of the lock body, making the structure more robust and durable. In addition, the rigid limit of the straight groove can ensure that the structure does not move or loosen in the locked state, further improving the locking stability.

[0016] (2) The anti-theft lock of the present invention is impact resistant and unobstructed. The outer shell is provided with a drive structure. The drive structure can realize the joint control function of unlocking the dual structure simultaneously with a single rotation of the door handle. The operation is convenient and efficient.

[0017] (3) The anti-theft lock described in this invention is impact-resistant and unobstructed. All parts of the lock body can be standardized and assembled. The process control is low during factory production, which can effectively reduce processing steps, improve production efficiency and product yield. While simplifying the structure and reducing costs, it achieves a comprehensive improvement in the strength, durability and anti-theft performance of the lock body. Moreover, the transmission structure is all rolling fit, without jamming or additional resistance, and can maintain stable opening and closing performance even after long-term use. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of an impact-resistant, unobstructed anti-theft lock provided by the present invention; Figure 2This is a schematic diagram of the connection structure between the anti-collision block and the outer shell of the present invention; Figure 3 This is a schematic diagram of the connection structure between the locking tongue and the fixing rod of the present invention; Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of part A. Figure 5 This is a schematic diagram of the connection structure of the toothed plate of the present invention; Figure 6 for Figure 5 The diagram shown is an enlarged view of the structure of section B. Figure 7 This is a schematic diagram of the connection structure between the mounting shaft and the anti-collision block of the present invention; Figure 8 This is a schematic diagram of the connection structure between the adjusting shaft and the toothed plate of the present invention; Figure 9 for Figure 8 The diagram shows an enlarged view of section C. Figure 10 This is a schematic diagram of the connection structure between the push rod and the stop rod of the present invention.

[0020] In the diagram: 1. Outer shell; 2. Anti-collision assembly; 201. Mounting shaft; 202. Anti-collision block; 203. Adjusting shaft; 204. Gear plate; 205. Inclined groove; 206. Straight groove; 207. First guide shaft; 208. First rotating shaft; 209. Gear; 210. First connecting shaft; 211. Rotating rod; 212. First drive shaft; 213. Drive groove; 214. Second connecting shaft; 215. Guide groove; 3. Linkage assembly; 301. Fixed shaft; 302. Guide plate; 303. Fixed block; 304. First stop block; 305. Torsion spring; 306. Mounting base; 307. Guide post; 4. Safety assembly; 401 1. Guide rod; 402. Safety block; 403. Rotating block; 404. Toggle lever; 5. Slanted tongue assembly; 501. Slider; 502. Fixed rod; 503. Locking tongue; 504. Connecting rod; 505. First tension spring; 506. Stop bar; 507. Push column; 508. Slide groove; 509. Second tension spring; 6. Drive assembly; 601. Roller; 602. Push rod; 603. Second stop block; 604. Through groove; 605. Second drive shaft; 606. Drive block; 607. Toggle block; 7. Pressing assembly; 701. Second guide shaft; 702. Connecting rod; 703. Second rotating shaft; 704. Pressure block; 705. Linkage shaft. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-9As shown, the present invention provides an impact-resistant, unobstructed anti-theft lock comprising a housing 1, an anti-collision component 2 mounted on the housing 1, and a drive component 6 mounted on the housing 1. The anti-collision component 2 includes two mounting shafts 201 rotatably connected to the housing 1 and anti-collision blocks 202 rotatably connected to the mounting shafts 201. An adjusting shaft 203 is rotatably connected to the anti-collision blocks 202. Two toothed plates 204 are slidably connected to the housing 1. The toothed plates 204 are provided with inclined grooves 205 and straight grooves 206. The housing 1 is provided with a guide groove 215. The adjusting shaft 203 and the guide groove 215 rotate. In conjunction with the housing 1, a first rotating shaft 208 is rotatably connected to the housing 1, a gear 209 is mounted on the first rotating shaft 208, a gear plate 204 meshes with the gear 209, a first connecting shaft 210 is rotatably connected to the housing 1, a rotating rod 211 is fixedly connected to the first connecting shaft 210, a first drive shaft 212 is rotatably connected to the rotating rod 211, one of the gear plates 204 is provided with a drive groove 213, the first drive shaft 212 is in rolling engagement with the drive groove 213, a second connecting shaft 214 is rotatably connected to the rotating rod 211, and the second connecting shaft 214 is driven by the drive assembly 6.

[0023] Specifically, such as Figures 1-9 As shown, a first guide shaft 207 is rotatably connected to the outer casing 1. The rolling engagement between the first guide shaft 207 and the toothed plate 204 reduces sliding resistance. The toothed plate 204 and the first guide shaft 207 are in rolling engagement. The drive assembly 6 includes a roller 601 rotatably connected to the outer casing 1 and a push rod 602 rollingly connected to the roller 601. A drive block 606 fixed to the second drive shaft 605 rotates with the shaft. The push rod 602 is pushed along the roller 601 by the through groove 604 on the push rod 602. The roller 601... The push rod 602 is rolled together, which greatly reduces the frictional resistance during the transmission process and achieves a smooth and jam-free opening action. The second connecting shaft 214 is rotatably connected to the push rod 602. The push rod 602 is fixedly connected to the second stop 603. The housing 1 is rotatably connected to the second drive shaft 605. The second drive shaft 605 is fixedly connected to the drive block 606. The push rod 602 is provided with a through groove 604. The drive block 606 is slidably connected to the through groove 604. The second drive shaft 605 is fixedly connected to the toggle block 607.

[0024] Specifically, such as Figure 4 and Figure 5As shown, one of the toothed plates 204 and the rotating rod 211 are linked by a linkage assembly 3. The linkage assembly 3 includes a fixed shaft 301 rotatably connected to the rotating rod 211 and a guide plate 302 rotatably connected to the fixed shaft 301. During the entire process of the rotating rod 211 rotating to complete the unlocking action, the rotating rod 211 drives the guide plate 302 to move through the fixed shaft 301. The guide plate 302 rolls along the guide post 307 on the outer shell 1, synchronously deforming the torsion spring between the mounting base 306 and the fixed block 303. 305, the torsion spring 305 can provide a reset preload force for the rotating rod 211 after the unlocking action is canceled, ensuring the automatic reset capability of the lock body locking action. A fixing block 303 is fixedly connected to the guide plate 302, and a mounting base 306 is fixedly connected to the outer shell 1. A torsion spring 305 is fixedly connected between the mounting base 306 and the fixing block 303. A guide post 307 is rotatably connected to the outer shell 1. The guide post 307 is rollingly connected to the guide plate 302. A first stop block 304 is fixedly connected to the guide plate 302.

[0025] Specifically, such as Figure 6 As shown, the outer casing 1 is equipped with a safety component 4. The safety component 4 includes a guide rod 401 fixedly connected to the outer casing 1 and a safety block 402 slidably connected to the guide rod 401. When the user needs to activate the deadbolt safety function, he can rotate the deadbolt knob connected to the rotating block 403, which drives the rotating block 403 to rotate on a fixed axis. The lever 404 on the rotating block 403 pushes the safety block 402 to slide along the guide rod 401 in a directional manner, so that the safety block 402 forms a limit lock on the connecting rod 702. The lock body cannot be opened by the outside through the door handle or by force, which further enhances the anti-theft protection capability of the lock body. The rotating block 403 is rotatably connected to the outer casing 1, and the lever 404 is fixedly connected to the rotating block 403. The lever 404 drives the safety block 402 to slide.

[0026] Specifically, such as Figures 1-5 , Figure 8 and Figure 10 As shown, the outer casing 1 is provided with a tongue assembly 5. The tongue assembly 5 includes a slider 501 slidably connected to the outer casing 1 and a fixed rod 502 rotatably connected to the slider 501. A locking tongue 503 is installed on the fixed rod 502. A connecting rod 504 is fixedly connected to the outer casing 1. A first tension spring 505 is installed between the connecting rod 504 and the slider 501. When the user needs to change the installation direction of the locking tongue 503, the push column 507 can be pushed to drive the stop rod 506 to slide along the slide groove 508, so that the stop rod 506 no longer blocks and limits the slider 501. At this time, the locking tongue 503 can slide out of the outer casing 1, and the orientation of the locking tongue 503 can be quickly adjusted, making it more adaptable. A stop rod 506 is slidably connected to the outer casing 1. A push column 507 is fixedly connected to the stop rod 506. A slide groove 508 is provided on the stop rod 506. A second tension spring 509 is installed between the stop rod 506 and the roller 601.

[0027] Specifically, such as Figure 3 , Figure 8 and Figure 9 As shown, the outer casing 1 is provided with a pressing assembly 7. The pressing assembly 7 includes a second guide shaft 701 rotatably connected to the outer casing 1 and a connecting rod 702 rollingly connected to the second guide shaft 701. A second rotating shaft 703 is rotatably connected to the outer casing 1. During the process of the driving block 606 rotating with the second driving shaft 605 and driving the anti-collision block 202 to complete the preset stroke retraction, the toggle block 607 fixed on the second driving shaft 605 abuts against the connecting rod 702. The toggle block 607 pushes the connecting rod 702 to roll along the second guide shaft 701. The connecting rod 702 drives the pressing block 704 to rotate around the second rotating shaft 703 through the linkage shaft 705, so that the pressing block 704 rotates around the second rotating shaft 703. The downward pressing end of 04 abuts against the slider 501 of the tongue assembly 5 and pushes the slider 501 to slide into the lock body, compressing the first tension spring 505 between the slider 501 and the connecting rod 504. At the same time, the fixed rod 502 on the slider 501 drives the lock tongue 503 to retract into the outer shell 1 synchronously, completing the unlocking of the lock tongue 503. This realizes the joint control function of unlocking the dual structure synchronously with a single turn of the door handle, which is convenient and efficient. A pressure block 704 is fixedly connected to the second rotating shaft 703. The pressure block 704 abuts against the slider 501. A linkage shaft 705 is rotatably connected to the pressure block 704. The connecting rod 702 is rotatably connected to the linkage shaft 705.

[0028] In use, when opening the door, the user rotates the door handle connected to the second drive shaft 605, causing the second drive shaft 605 to rotate synchronously. The drive block 606 fixed on the second drive shaft 605 rotates with the shaft, pushing the push rod 602 along the roller 601 through the through groove 604 on the push rod 602. The roller 601 and the push rod 602 are in a rolling fit, which greatly reduces the frictional resistance in the transmission process and achieves a smooth and jam-free opening action. During the movement of the push rod 602, the second connecting shaft 214 rotatably connected to its end drives the rotating rod 211 to rotate around the first connecting shaft 210. When the rotating rod 211 rotates, the first drive shaft 212 at its upper end is in a rolling fit along the drive groove 213 on the corresponding toothed plate 204, causing the toothed plate 204 to move along the first guide shaft 207 on the outer shell 1. The rolling engagement between 207 and toothed plate 204 reduces sliding resistance. At the same time, the two toothed plates 204 achieve meshing transmission through the gear 209 on the first rotating shaft 208. The sliding of a single toothed plate 204 can drive the other toothed plate 204 to move synchronously in the opposite direction through the gear 209, ensuring the synchronicity and consistency of the transmission on both sides. During the sliding of the toothed plate 204, the adjusting shaft 203 on the anti-collision block 202 rolls along the guide groove 215 on the outer shell 1 and the groove on the toothed plate 204. It first rolls from the straight groove 206 in the locked state to the inclined groove 205. Through the guidance of the inclined groove 205, the adjusting shaft 203 is driven to move along the guide groove 215 into the lock body, thereby driving the two anti-collision blocks 202 to rotate and retract into the outer shell 1 around the corresponding mounting shaft 201. The adjusting shaft 203 is locked into the straight groove 206 in the locked state to form a self-locking limit. During the process of the drive block 606 rotating with the second drive shaft 605 and driving the anti-collision block 202 to complete the preset stroke retraction, the toggle block 607 fixed on the second drive shaft 605 abuts against the connecting rod 702. The toggle block 607 pushes the connecting rod 702 to roll along the second guide shaft 701. The connecting rod 702 drives the pressure block 704 to rotate around the second rotating shaft 703 through the linkage shaft 705, so that the lower pressing end of the pressure block 704 abuts against the slider 501 of the tongue assembly 5 and pushes the slider 501 to slide into the lock body, compressing the first tension spring 505 between the slider 501 and the connecting rod 504. At the same time, the fixed rod 502 on the slider 501 drives the lock tongue 503 to retract synchronously into the outer shell 1, completing the unlocking of the lock tongue 503. This realizes the linkage function of completing the dual-structure synchronous unlocking with a single rotation of the door handle. The operation is convenient and efficient. The entire unlocking action is completed by the rotation of the rotating rod 211. During the process, the rotating rod 211 drives the guide plate 302 to move through the fixed shaft 301. The guide plate 302 rolls along the guide post 307 on the outer shell 1, synchronously deforming the torsion spring 305 between the mounting seat 306 and the fixed block 303. The torsion spring 305 can provide a reset preload force for the rotating rod 211 after the unlocking action is canceled, ensuring the automatic reset capability of the lock body's locking action. The first stop 304 at the end of the guide plate 302 and the second stop 603 on the push rod 602 can both be limited by the lock cylinder drive, which can realize the independent locking of the lock cylinder on the lock body transmission structure, further improving the anti-theft performance of the lock body. When the user needs to change the installation direction of the lock tongue 503, the push post 507 can be pushed to drive the stop rod 506 to slide along the slide groove 508, so that the stop rod 506 no longer blocks and limits the slider 501. At this time, the lock tongue 503 can slide out of the outer shell 1, and the orientation of the lock tongue 503 can be quickly adjusted, making it more adaptable. When the user releases the door handle after opening and passing through, the torsion spring 305 releases its elastic potential energy, causing the rotating rod 211 to rotate in the opposite direction around the first connecting shaft 210 and reset. The rotating rod 211 drives the toothed plate 204 to slide in the opposite direction via the first drive shaft 212, and at the same time, it drives the two toothed plates 204 to move synchronously towards each other via the gear 209. This causes the adjusting shaft 203 to roll back into the straight groove 206 along the inclined groove 205, causing the anti-collision block 202 to rotate around the mounting shaft 201 and extend outward from the outer casing 1. When subjected to external impact, the lock body 202 can directly transfer the load to the outer shell 1 and the door frame, preventing the bolt 503 and internal transmission components from deforming and failing due to impact. At the same time, the locking force can be distributed to the two toothed plates 204, which greatly improves the impact and pressure resistance of the lock body, making the structure more robust and durable. The rigid limit of the straight groove 206 can ensure that the structure does not move or loosen in the locked state, resulting in better locking stability. Meanwhile, the second drive shaft 605 resets with the door handle rotating in the opposite direction, and the toggle block 607 removes its resistance to the connecting rod 702. The first tension spring 505 releases its elastic potential energy to push the slider 501 outward, causing the latch 503 to extend out of the outer shell 1 to complete the latch lock, realizing the automatic locking function when closing the door. During the locking process, all transmission structures are rolling cooperation, without jamming or additional resistance, and can maintain stable opening and closing performance even after long-term use. When the user needs to activate the deadbolt safety function, the deadbolt knob connected to the rotating block 403 can be rotated to drive the rotating block 403 to rotate on a fixed axis. Through the lever 404 on the rotating block 403, the safety block 402 is pushed to slide along the guide rod 401 in a directional manner, so that the safety block 402 forms a limit lock on the connecting rod 702. The lock body cannot be opened by the door handle or by force, which further enhances the anti-theft protection capability of the lock body. At the same time, all parts of the lock body can be standardized by machining and assembly, which reduces the difficulty of process control during factory production, effectively reduces processing steps, improves production efficiency and product yield, and achieves a comprehensive improvement in the strength, durability and anti-theft performance of the lock body while simplifying the structure and reducing costs.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An impact-resistant, unobstructed anti-theft lock, comprising a shell (1), characterized in that, Anti-collision component (2) installed on the housing (1), and drive component (6) installed on the housing (1); The anti-collision assembly (2) includes two mounting shafts (201) rotatably connected to the outer shell (1) and an anti-collision block (202) rotatably connected to the mounting shafts (201). An adjusting shaft (203) is rotatably connected to the anti-collision block (202). Two toothed plates (204) are slidably connected to the outer shell (1). The toothed plates (204) are provided with inclined grooves (205) and straight grooves (206). The outer shell (1) is provided with a guide groove (215). The adjusting shaft (203) and the guide groove (215) are in rolling engagement. A first rotating shaft (208) is rotatably connected to the outer shell (1). 08) is equipped with a gear (209), the gear plate (204) meshes with the gear (209), the outer shell (1) is rotatably connected to a first connecting shaft (210), the first connecting shaft (210) is fixedly connected to a rotating rod (211), the rotating rod (211) is rotatably connected to a first drive shaft (212), one of the gear plates (204) is provided with a drive groove (213), the first drive shaft (212) and the drive groove (213) are in rolling cooperation, the rotating rod (211) is rotatably connected to a second connecting shaft (214), the second connecting shaft (214) is driven by a drive assembly (6).

2. The anti-theft lock with impact resistance and unobstructed opening as described in claim 1, characterized in that: The outer casing (1) is rotatably connected to a first guide shaft (207), and the toothed plate (204) is in rolling engagement with the first guide shaft (207).

3. The anti-theft lock with impact resistance and unobstructed opening as described in claim 1, characterized in that: The drive assembly (6) includes a roller (601) rotatably connected to the housing (1) and a push rod (602) rotatably connected to the roller (601). The second connecting shaft (214) is rotatably connected to the push rod (602), and a second stop (603) is fixedly connected to the push rod (602).

4. The anti-theft lock with impact resistance and unobstructed opening as described in claim 3, characterized in that: A second drive shaft (605) is rotatably connected to the outer casing (1), a drive block (606) is fixedly connected to the second drive shaft (605), a through groove (604) is provided on the push rod (602), the drive block (606) is slidably connected to the through groove (604), and a toggle block (607) is fixedly connected to the second drive shaft (605).

5. The anti-theft lock with impact resistance and unobstructed opening as described in claim 1, characterized in that: One of the toothed plates (204) is linked to the rotating rod (211) via a linkage assembly (3). The linkage assembly (3) includes a fixed shaft (301) rotatably connected to the rotating rod (211) and a guide plate (302) rotatably connected to the fixed shaft (301). A fixing block (303) is fixedly connected to the guide plate (302), and a mounting base (306) is fixedly connected to the outer shell (1).

6. The anti-theft lock with impact resistance and unobstructed opening as described in claim 5, characterized in that: A torsion spring (305) is fixedly connected between the mounting base (306) and the fixing block (303). A guide post (307) is rotatably connected to the outer shell (1). The guide post (307) is rolledly connected to the guide plate (302). A first stop block (304) is fixedly connected to the guide plate (302).

7. The anti-theft lock with impact resistance and unobstructed opening as described in claim 6, characterized in that: The outer casing (1) is provided with a safety component (4), which includes a guide rod (401) fixedly connected to the outer casing (1) and a safety block (402) slidably connected to the guide rod (401). A rotating block (403) is rotatably connected to the outer casing (1), and a lever (404) is fixedly connected to the rotating block (403). The lever (404) drives the safety block (402) to slide.

8. The anti-theft lock with impact resistance and unobstructed opening as described in claim 1, characterized in that: The outer shell (1) is provided with a tongue assembly (5), which includes a slider (501) slidably connected to the outer shell (1) and a fixed rod (502) rotatably connected to the slider (501). A locking tongue (503) is installed on the fixed rod (502). A connecting rod (504) is fixedly connected to the outer shell (1). A first tension spring (505) is installed between the connecting rod (504) and the slider (501). A stop rod (506) is slidably connected to the outer shell (1). A push column (507) is fixedly connected to the stop rod (506). A sliding groove (508) is provided on the stop rod (506). A second tension spring (509) is installed between the stop rod (506) and the roller (601).

9. The anti-theft lock with impact resistance and unobstructed opening as described in claim 1, characterized in that: The outer casing (1) is provided with a pressing assembly (7), which includes a second guide shaft (701) rotatably connected to the outer casing (1) and a connecting rod (702) rollingly connected to the second guide shaft (701). A second rotating shaft (703) is rotatably connected to the outer casing (1), and a pressure block (704) is fixedly connected to the second rotating shaft (703).

10. The anti-theft lock with impact resistance and unobstructed opening as described in claim 9, characterized in that: The pressure block (704) abuts against the slider (501), and a linkage shaft (705) is rotatably connected to the pressure block (704). The connecting rod (702) is rotatably connected to the linkage shaft (705).

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