Coded lock

Abstract

The utility model provides a coded lock which comprises a coded lock body, a lower cover, a pressing tongue and a fixing seat, the coded lock body is arranged on the lower cover in a covering mode and provided with a connecting portion and a lock head, one end of the pressing tongue is installed on the lower cover, and the other end of the pressing tongue can abut against the lock head in a pressing mode. The lower cover is provided with an installation groove, a code assembly is installed on the installation groove, a steel mooring rope is tied on the coded lock body, one end of the steel mooring rope is connected to the connecting part, and the other end of the steel mooring rope is connected to the connecting position of the lock head and the pressing tongue. The coded lock is characterized in that a T-shaped groove is formed in the lower cover, and a fixing base installed on the T-shaped groove through a connecting structure is installed on the T-shaped groove; the fixing base is provided with a screw connecting base which is screwed and fixed through a countersunk screw, and the lower cover and the coded lock body shield the countersunk screw. When the coded lock is locked, the countersunk head screw of the fixed seat is shielded through the lower cover and the coded lock body, so that the coded lock is prevented from being disassembled by other people.

Description

Technical Field

[0001] This utility model relates to a combination lock. Background Technology

[0002] With increasingly stringent safety regulations and heightened public awareness of safety, riders of electric bikes and high-speed fitness bikes are required to wear helmets. However, after a ride, the helmets are typically stored in the basket or on the bike with a combination lock. Currently available combination locks are inconvenient to access and have exposed screws on the mounting brackets, making them easy for others to remove while the bike is parked, posing a risk of theft. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a combination lock. When locked, this combination lock uses its lower cover and the main body to cover the countersunk screws of the fixing base, preventing unauthorized disassembly.

[0004] The objective of this utility model can be achieved through the following technical solution: A combination lock, comprising a lock body, a lower cover, a latch, and a fixing base, wherein the lock body is mounted on the lower cover and has a connecting part and a lock head, one end of the latch is mounted on the lower cover and the other end can be pressed against the lock head, the lower cover has a mounting groove and a combination component is mounted on the mounting groove, and a steel cable is attached to the lock body, with one end of the steel cable connected to the connecting part and the other end connected to the connection between the lock head and the latch, characterized in that:

[0005] The lower cover is provided with a T-shaped groove, and a fixing seat is installed on the T-shaped groove by a connecting structure. The fixing seat has a screw connecting seat that is tightened by countersunk screws. The lower cover and the combination lock body cover the countersunk screws.

[0006] Furthermore, the fixing seat is annular with a fixing ring having an opening on one side in its middle.

[0007] Furthermore, the steel cable has loops at both ends.

[0008] Furthermore, the lower cover has mounting holes, and one end of the pressure tongue is rotatably connected to the lower cover via a central shaft and a torsion spring. The pressure tongue has a pressure block that can abut against the password component.

[0009] Furthermore, a limiting block is provided at one end of the mounting groove, and several positioning posts are also provided on the mounting groove. The password assembly includes a feed block, several rotating posts, and several password disks. The feed block is installed in the mounting groove and can move laterally. One end of the feed block has a mounting post and a spring is sleeved on the mounting post. The other end of the feed block can abut against the limiting block. Several clearance grooves are opened on the feed block, and each clearance groove corresponds to a positioning post. The lower end of the rotating post has a connecting hole and is sleeved on the positioning post through the connecting hole. The lower end of the rotating post is a base with a notch. The clearance groove has a protrusion corresponding to the notch. The rotating post has a second tooth. The password disk is sleeved on the rotating post and has a first tooth that meshes with the second tooth. When the password disk rotates, it drives the rotating post to rotate.

[0010] Furthermore, the upper cover of the T-shaped groove is provided with a gasket and the gasket has a first groove, and the lower cover has a second groove that communicates with the first groove. The first groove and the second groove communicate to form a strip channel.

[0011] Furthermore, the upper end of the fixing seat has a boss that can be engaged in a T-shaped groove, the boss has a third groove corresponding to the first groove, and the pressure tongue has a locking post that can move within the strip channel, the locking post being able to extend into the third groove.

[0012] Furthermore, the feed block has a stop block that can abut against the pressure block of the pressure tongue.

[0013] Compared with the prior art, the advantages of this application are: when the combination lock is locked, the countersunk screws of the fixing base are covered by the lower cover and the combination lock body, preventing it from being disassembled by others. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the combination lock.

[0015] Figure 2 This is a diagram showing the removal of the combination lock itself;

[0016] Figure 3 This is a diagram showing the removal of the mounting bracket;

[0017] Figure 4 This is a schematic diagram of the lower cover;

[0018] Figure 5 This is a schematic diagram of the fixed base;

[0019] Figure 6 This is a diagram of a combination lock;

[0020] Figure 7 This is a detailed diagram of the keypad.

[0021] Figure 8 This is a schematic diagram of the feed block;

[0022] Figure 9 This is a schematic diagram of the rotating column;

[0023] In the diagram, 1. Combination lock body; 11. Lock head; 12. Connecting part; 2. Fixing base; 21. Fixing ring; 22. Countersunk screw; 23. Screw connecting seat; 24. Boss; 25. Third groove; 3. Steel cable; 31. Rope loop; 4. Lower cover; 42. Washer; 421. First groove; 43. Combination dial; 431. First tooth; 44. Second groove; 45. Rotating pin; 451. Second tooth; 452. Base; 453. Notch; 454. Protrusion; 455. Connecting hole; 47. Feed block; 471. Mounting pin; 472. Spring; 473. Relief groove; 474. Abutment block; 48. Mounting groove; 481. Positioning pin; 482. Limiting block; 5. T-slot; 8. Tongue; 81. Locking pin; 82. Torsion spring; 83. Central shaft; 84. Mounting hole; 85. Pressure block. Detailed Implementation

[0024] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0025] like Figure 1-9 As shown, a combination lock includes a lock body 1, a lower cover 4, a latch 8, and a fixing base. The lock body 1 is mounted on the lower cover 4 and has a connecting part 12 and a lock head 11. One end of the latch 8 is installed on the lower cover 4, and the other end can be pressed against the lock head 11. The lower cover 4 has a mounting groove 48, and a combination component is installed in the mounting groove 48. A steel cable 3 is attached to the lock body 1, with one end of the steel cable 3 connected to the connecting part 12 and the other end connected to the connection between the lock head 11 and the latch 8. The lock is characterized by:

[0026] The lower cover 4 is provided with a T-shaped groove 5, and a fixing seat is installed on the T-shaped groove 5 by means of a connecting structure. The fixing seat has a screw connecting seat 23 that is tightened by countersunk screws 22. The lower cover 4 and the combination lock body 1 cover the countersunk screws 22.

[0027] Furthermore, the fixing base is annular with a fixing ring 21 that has an opening on one side. The interior of the fixing ring 21 is used to install a rod-shaped object, which is then tightened by a countersunk screw 22. When the combination lock body 1 is installed on the fixing base 2, the combination lock body 1 will block the tightening part of the countersunk screw 22, so the fixing base cannot be removed from the rod-shaped object.

[0028] Furthermore, the upper cover of the T-shaped groove 5 is provided with a gasket 42 and the gasket 42 has a first groove 421, and the lower cover 4 has a second groove 44 that communicates with the first groove 421. The first groove 421 and the second groove 44 communicate to form a strip channel.

[0029] Furthermore, the upper end of the fixing seat has a boss 24 that can be inserted into the T-shaped groove 5, the boss 24 has a third groove 25 corresponding to the first groove 421, and the pressure tongue 8 has a locking post 81 that can move in the strip channel, the locking post 81 can extend into the third groove 25.

[0030] By tightening the countersunk screw 22, the mounting bracket is firmly fixed to the vehicle body. When not unlocked, the latch 81 of the pressure tongue 8 is located in the first groove 421 and the third groove 25. At this time, the boss 24 of the mounting bracket cannot disengage from the T-shaped groove 5, thus firmly fixing it to the lower cover 4 and covering the countersunk screw 22 with the lower cover 4 and the gasket 42, thereby solving the problem of exposed mounting bracket screws and preventing disassembly by others.

[0031] When the combination lock body 1 is installed into the T-shaped groove 5 of the matching fixing base 2 via the T-shaped groove 5 of the lower cover 4, the locking pin 81 of the pressure tongue 8 enters the first groove 421. When the combination is correct, the pressure tongue 8 presses the locking pin 81 out of the T-shaped groove 5 and into the second groove 44, thus allowing the combination lock body 1 to be removed. When the combination is incorrect, the pressure tongue 8 cannot be pressed, and the locking pin 81 remains in the first groove 421 of the T-shaped groove 5, preventing the combination lock body 1 from being removed. Furthermore, the steel cable 3 has loops 31 at both ends. One end of the loops 31 at both ends of the steel cable 3 is connected to the connecting part 12 of the combination lock body 1, and the other end is connected to the connection between the pressure tongue 8 and the lock head 11, thereby locking the helmet.

[0032] Furthermore, the lower cover 4 has a mounting hole 84, and one end of the pressure tongue 8 is rotatably connected to the lower cover 4 via a central shaft 83 and a torsion spring 82. The pressure tongue 8 has a pressure block 85 that can abut against the password component.

[0033] Furthermore, the feed block 47 has an abutment block 474 that can abut against the pressure block 85 of the pressure tongue 8.

[0034] Furthermore, a limiting block 482 is provided at one end of the mounting groove 48, and a plurality of positioning posts 481 are also provided on the mounting groove 48. The password assembly includes a feed block 47, a plurality of rotating posts 45, and a plurality of password disks 43. The feed block 47 is installed in the mounting groove 48 and can move laterally. One end of the feed block 47 has a mounting post 471 and a spring 472 is sleeved on the mounting post 471. The other end of the feed block 47 can abut against the limiting block 482. A plurality of clearance grooves 473 are provided on the feed block 47. Each clearance groove 473 corresponds to a positioning post 481. The lower end of the rotating post 45 has a connecting hole 455 and is sleeved on the positioning post 481 through the connecting hole 455. The lower end of the rotating post 45 is a base 452 and the base 452 has a notch 453. The clearance groove 473 has a protrusion 454 corresponding to the notch 453. The rotating post 45 has a second tooth 451. The password disk 43 is sleeved on the rotating post 45 and has a first tooth 431 that meshes with the second tooth 451. When the password disk 43 rotates, it drives the rotating post 45 to rotate. Part of the combination dial 43 is exposed above the main body 1 of the combination lock. The combination dial 43 has numbers 0-9. Turning the combination dial 43 causes the rotating column 45 connected to it to rotate. When the combination is correct, the notch 453 of the base 452 corresponds to the protrusion 454 of the relief groove 473, so that the spring 472 acts on the feed block 47 to feed the protrusion 454 to the notch 453 to abut. At this time, the abutting block 474 of the feed block 47 will not make abutting contact with the pressing block 85 of the pressing tongue 8, so that the pressing tongue 8 can be pressed inward. The locking column 81 moves along the first groove 421 to the second groove 44, so that the boss 24 of the fixing seat can retract in the T-shaped groove 5 and disengage, so that the main body 1 of the combination lock can be removed from the fixing seat. At this time, the countersunk screw 22 is exposed and can be disassembled.

[0035] When the combination dial 43 is scrambled and the lock fails to unlock, the locking pin 81 presses against the third groove 25 of the fixing seat protrusion 24, and the combination lock body 1 is stuck on the fixing seat and cannot be removed.

[0036] When the combination on dial 43 is correct, press the latch 8 down to lock it into the helmet strap. After rotating the combination on dial 43, the latch 8 cannot move, thus locking the strap and locking the helmet head 11. At this time, the combination lock body 1 and the fixing base cannot be separated.

[0037] When the combination lock 43 is correct, the latch 8 is pressed down, and the locking pin 81 at one end of the latch 8 moves down to the second groove 44. At this time, the locking pin 81 leaves the third groove 25 of the fixing base boss 24, and the combination lock can be removed as a whole. At this time, the combination lock can be used to lock the tire lock and luggage with the steel cable 3. At the same time, the fixing base screws are exposed and can be disassembled.

[0038] When locked, the combination lock is fixed to the vehicle by the mounting bracket. The helmet can be locked by the steel cable 3. After unlocking, the combination lock can be removed from the mounting bracket and the wheels or luggage can be locked by the steel cable 3, making it more versatile. When locked, the combination lock body 1 and the lower cover 4 cover the countersunk screw 22 that tightens the mounting bracket. At the same time, when locked, the copper can be prevented from falling off the mounting bracket by the locking post 81 of the pressure tongue 8 being located in the first groove 421 and the third groove 25. This effectively improves the storage and installation of the combination lock, making it more convenient and reliable to use.

[0039] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0040] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A combination lock, comprising a lock body, a lower cover, a latch, and a fixing base, wherein the lock body is mounted on the lower cover and has a connecting portion and a lock head, one end of the latch is mounted on the lower cover, and the other end can be pressed against the lock head, the lower cover has a mounting groove on which a combination component is mounted, and a steel cable is attached to the lock body, one end of the steel cable being connected to the connecting portion and the other end being connected to the connection between the lock head and the latch, characterized in that: The lower cover is provided with a T-shaped groove, and the lower cover is installed in the T-shaped groove of the fixing seat through the T-shaped groove. The fixing seat has a screw connection seat that is tightened by countersunk screws. The lower cover and the combination lock body cover the locking end of the countersunk screws.

2. A combination lock according to claim 1, characterized in that: The fixing base is ring-shaped with a fixing ring that has an opening on one side in the middle.

3. A combination lock according to claim 1, characterized in that: The steel cable has loops at both ends.

4. A combination lock according to claim 1, characterized in that: The lower cover has mounting holes, and one end of the pressure tongue is rotatably connected to the lower cover via a central shaft and a torsion spring. The pressure tongue has a pressure block that can abut against the password component.

5. A combination lock according to claim 4, characterized in that, The mounting slot has a limiting block at one end and several positioning posts on the mounting slot. The password assembly includes a feed block, several rotating posts, and several password disks. The feed block is installed in the mounting slot and can move laterally. One end of the feed block has a mounting post and a spring is sleeved on the mounting post. The other end of the feed block can abut against the limiting block. Several clearance slots are opened on the feed block, and each clearance slot corresponds to a positioning post. The lower end of the rotating post has a connecting hole and is sleeved on the positioning post through the connecting hole. The lower end of the rotating post is a base with a notch. The clearance slot has a protrusion corresponding to the notch. The rotating post has a second tooth. The password disk is sleeved on the rotating post and has a first tooth that meshes with the second tooth. When the password disk rotates, it drives the rotating post to rotate.

6. A combination lock according to claim 1, characterized in that, The upper cover of the T-shaped groove is provided with a gasket and the gasket has a first groove. The lower cover has a second groove that communicates with the first groove. The first groove and the second groove communicate to form a strip channel.

7. A combination lock according to claim 6, characterized in that, The upper end of the fixing seat has a boss that can be inserted into a T-shaped groove. The boss has a third groove corresponding to the first groove. The pressure tongue has a locking post that can move within the strip channel and can extend into the third groove.

8. A combination lock according to claim 5, characterized in that, The feed block has a stop block that can abut against the pressure block of the pressure tongue.

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