U-shaped lock

Abstract

The utility model discloses a U-shaped lock which comprises a shell, a positioning seat and a fixed seat are fixedly installed on the inner wall of the shell, a spring bolt structure is arranged in the shell, the upper end of a reset spring abuts against the bottom of a movable seat, a spring bolt linkage rod is movably inserted into the positioning seat, a motor seat is fixedly installed in the shell, and a motor is arranged on the motor seat. A motor base is fixedly installed in the shell, a gear motor is fixedly installed in the motor base, a rotating base is fixedly installed on an output shaft of the gear motor, a first shifting column is fixedly connected to the side portion of the rotating base, a first shifting groove is formed in the moving base, the first shifting column is arranged in the moving base, and a lock cylinder used for adjusting a spring bolt structure is arranged in the shell. Through the design of the structures such as the lock shell, the lock liner and the second shifting column, the situation that the lock tongue cannot be unlocked due to blocking is avoided, after the lock tongue is blocked due to water inflow and freezing, a mechanical key can be moved to forcibly rotate the lock tongue for unlocking, so that the U-shaped lock can be smoothly opened, and the practicability of the U-shaped lock in use is improved.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a U-shaped lock. Background Technology

[0002] A U-lock is a type of lock that resembles the English letter "U". Due to its simple structure, ease of use, and robust reliability, U-locks are widely used in the field of theft prevention.

[0003] U-locks are widely used for theft prevention on bicycles, electric bikes, motorcycles, and other vehicles due to their simple structure, ease of use, and good anti-theft performance. However, in cold winters, if water gets into the latch of a U-lock, the water will freeze at low temperatures, causing the latch to jam and preventing it from opening smoothly, which will cause inconvenience to the user. Furthermore, the lock may be subjected to external impacts or vibrations, such as the bumps of a moving vehicle. These external forces may cause the lock to loosen, and a loose U-lock may not be able to fit tightly against the locked object, affecting its anti-theft effect. Therefore, we need to address the issue of U-locks. Utility Model Content

[0004] The purpose of this utility model is to provide a U-lock in which the bolt will not become stuck and prevent the lock from opening. When the bolt becomes stuck due to water and ice, it can be forcibly turned by a mechanical key to open the lock, thus improving the practicality of the U-lock and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A U-shaped lock includes a housing. A positioning seat and a fixed seat are fixedly installed on the inner wall of the housing. A latch structure is provided inside the housing. The latch structure includes a movable seat and a latch linkage rod fixedly connected to the upper end of the movable seat. The lower end of the movable seat is located inside the fixed seat. A return spring is provided inside the fixed seat. The upper end of the return spring abuts against the bottom of the movable seat. The latch linkage rod is movably inserted into the positioning seat.

[0007] A motor base is fixedly installed inside the housing, a geared motor is fixedly installed inside the motor base, a rotating seat is fixedly installed on the output shaft of the geared motor, a first actuating pin is fixedly connected to the side of the rotating seat, a first actuating groove is opened on the moving seat, the first actuating pin is disposed inside the moving seat, and a lock cylinder for adjusting the lock tongue structure is provided inside the housing.

[0008] Preferably, the lock cylinder includes a lock shell, a lock cylinder, and a second actuating pin. The lock shell is fixedly installed inside the housing, the lock cylinder is movably installed inside the lock shell, and two sets of the second actuating pins are provided, with both sets of the second actuating pins fixedly connected to the end of the lock shell.

[0009] Preferably, the movable seat is provided with a second actuation groove, a set of second actuation pins are disposed in the second actuation groove, and another set of second actuation pins are in contact with the side of the reduction motor.

[0010] Preferably, the fixed base has a insertion slot, the lower end of the movable base is movably inserted into the insertion slot, and the lower end of the return spring abuts against the inner bottom of the insertion slot.

[0011] Preferably, the housing has an insertion hole, and the upper end of the locking tongue linkage rod is inserted into the insertion hole.

[0012] Preferably, a battery and a circuit board are fixedly installed inside the housing, and the geared motor and the battery are electrically connected to the circuit board.

[0013] Preferably, the circuit board is electrically connected to a charging port, which is installed inside the housing.

[0014] Preferably, a limiting block is fixedly connected to the side of the movable seat, and a limiting groove for positioning the limiting block is provided in the fixed seat, and the limiting block is slidably installed in the limiting groove.

[0015] Preferably, a sealing cover is fixedly installed on the side of the housing.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Through the design of the lock shell, lock cylinder, second actuating column and reduction motor, the lock tongue will not be unable to open due to jamming. When water enters the lock tongue and it freezes and jams, the lock tongue can be forcibly turned by the mechanical key to open the lock, so that the U-lock can be opened smoothly, improving the practicality of the U-lock when using it.

[0018] 2. The locking tongue structure effectively prevents loosening. The locking tongue mechanism is supported by the lock cylinder and the geared motor, and the spring provides elastic restoring force for locking. The opening and closing of the lock is completed by the locking tongue linkage rod. The structure is simple and stable, and it does not disengage or jam, which improves the stability of the U-lock and can effectively reduce the risk of the lock loosening. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0020] Figure 2 This is the second structural schematic diagram of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of the present invention;

[0022] Figure 4 This is one of the schematic diagrams of the lock tongue structure and lock cylinder of this utility model;

[0023] Figure 5 This is the second schematic diagram of the lock tongue structure and lock cylinder of this utility model;

[0024] Figure 6 This is a schematic diagram of the locking tongue structure of this utility model.

[0025] In the diagram: 1. Housing; 2. Sealing cover; 3. Motor base; 4. Gear motor; 5. Rotating base; 6. First actuating pin; 7. Moving base; 8. First actuating groove; 9. Second actuating groove; 10. Lock tongue linkage rod; 11. Positioning base; 12. Insertion hole; 13. Fixed base; 14. Insertion groove; 15. Positioning pin; 16. Return spring; 17. Limiting block; 18. Limiting groove; 19. Lock shell; 20. Lock cylinder; 21. Second actuating pin; 22. Battery; 23. Circuit board; 24. Charging port; 25. Keyboard module. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 This utility model provides a technical solution:

[0028] The U-shaped lock includes a housing 1. A positioning seat 11 and a fixed seat 13 are fixedly installed on the inner wall of the housing 1. A locking tongue structure is provided inside the housing 1. The locking tongue structure includes a movable seat 7 and a locking tongue linkage rod 10 fixedly connected to the upper end of the movable seat 7. The lower end of the movable seat 7 is located in the fixed seat 13. A return spring 16 is provided in the fixed seat 13. The upper end of the return spring 16 abuts against the bottom of the movable seat 7. The locking tongue linkage rod 10 is movably inserted into the positioning seat 11.

[0029] A motor base 3 is fixedly installed inside the housing 1. A geared motor 4 is fixedly installed inside the motor base 3. A rotating seat 5 is fixedly installed on the output shaft of the geared motor 4. A first actuating pin 6 is fixedly connected to the side of the rotating seat 5. A first actuating groove 8 is opened on the moving seat 7. The first actuating pin 6 is located inside the moving seat 7. A lock cylinder for adjusting the lock tongue structure is provided inside the housing 1.

[0030] By setting the return spring 16, the moving seat 7 can be pushed, so that the moving seat 7 and the locking tongue linkage rod 10 can be automatically reset. The return spring 16 provides elastic reset force for locking, which improves the stability of the U-lock.

[0031] In an optional embodiment: the lock cylinder includes a lock shell 19, a lock cylinder 20 and a second actuating pin 21. The lock shell 19 is fixedly installed in the housing 1, the lock cylinder 20 is movably installed in the lock shell 19, and two sets of second actuating pins 21 are provided, both sets of second actuating pins 21 being fixedly connected to the end of the lock shell 19.

[0032] It should be noted that the lock housing 19, the lock cylinder 20, and the second actuating pin 21 work together to achieve the function of manual unlocking.

[0033] In an optional embodiment: a second actuation groove 9 is provided on the movable seat 7, a set of second actuation pins 21 are disposed in the second actuation groove 9, and another set of second actuation pins 21 are in contact with the side of the reduction motor 4.

[0034] In an optional embodiment: a insertion slot 14 is provided in the fixed base 13, the lower end of the movable base 7 is movably inserted into the insertion slot 14, and the lower end of the return spring 16 abuts against the inner bottom of the insertion slot 14.

[0035] It should be noted that a positioning post 15 is fixedly connected to the lower end of the movable seat 7, and the return spring 16 is sleeved on the positioning post 15. The positioning post 15 plays the role of positioning the return spring 16.

[0036] In an optional embodiment: a plug hole 12 is provided in the housing 1, and the upper end of the locking tongue linkage rod 10 is inserted into the plug hole 12.

[0037] It should be noted that the lock rod can be inserted into the insertion hole 12, and the lock rod can be fixed by the lock tongue linkage rod 10.

[0038] In an optional embodiment: a battery 22 and a circuit board 23 are fixedly installed inside the housing 1, and the geared motor 4 and the battery 22 are electrically connected to the circuit board 23.

[0039] In an optional embodiment, a charging port 24 is electrically connected to the circuit board 23, and the charging port 24 is installed inside the housing 1.

[0040] It should be noted that the battery 22 can be charged through the charging port 24.

[0041] In an optional embodiment: a limiting block 17 is fixedly connected to the side of the movable seat 7, and a limiting groove 18 for positioning the limiting block 17 is provided in the fixed seat 13, and the limiting block 17 is slidably installed in the limiting groove 18.

[0042] It should be noted that the limiting block 17 and the limiting groove 18 cooperate to guide and position the movable seat 7, so that the movable seat 7 can move stably within the fixed seat 13.

[0043] In an optional embodiment, a sealing cover 2 is fixedly mounted on the side of the housing 1.

[0044] It should be noted that the keyboard module 25 is installed inside the housing 1 and fixed by the sealing cover 2. The keyboard module 25 is electrically connected to the circuit board 23. The keyboard module 25 plays a role in assisting identity verification. The reduction motor 4 is started by entering the correct password. The specific structure and working principle of the keyboard module 25 are existing mature technologies and will not be described in detail here.

[0045] In practical use, firstly, rotate the unlocking method according to the required method. When unlocking automatically, the reduction motor 4 can be started through the keyboard module 25. The output shaft of the reduction motor 4 rotates, driving the rotating seat 5 to rotate. When the rotating seat 5 rotates, it pushes the moving seat 7 through the first actuating column 6, so that the moving seat 7 can move downward and drive the lock tongue linkage rod 10 to move closer to the return spring 16 to unlock. At this time, the lock tongue linkage rod 10 moves out from the insertion hole 12, and the return spring 16 is squeezed. When the unlocking is completed, the reduction motor 4 automatically resets, and the return spring 16 springs up to push the lock tongue linkage rod out to lock again.

[0046] When unlocking manually, the key is turned manually to unlock. Turning the key 90 degrees causes the lock cylinder 20 to rotate. When the lock cylinder 20 rotates, it pushes the moving seat 7 through the second actuating pin 21, causing the moving seat 7 to be pushed to the direction of the return spring 16 to unlock. After unlocking, the key is removed, and the return spring 16 returns to its original position, pushing the lock tongue linkage rod out to lock.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. U-lock comprising a housing (1), characterized in that: The inner wall of the shell (1) is fixedly installed with a positioning seat (11) and a fixed seat (13), the inside of the shell (1) is provided with a lock tongue structure, the lock tongue structure comprises a moving seat (7) and a lock tongue connecting rod (10) fixedly connected to the upper end of the moving seat (7), the lower end of the moving seat (7) is arranged in the fixed seat (13), the fixed seat (13) is provided with a reset spring (16), the upper end of the reset spring (16) abuts against the bottom of the moving seat (7), and the lock tongue connecting rod (10) is movably inserted into the positioning seat (11). The inside of the shell (1) is fixedly installed with a motor seat (3), the motor seat (3) is fixedly installed with a speed reducer motor (4) inside, the output shaft of the speed reducer motor (4) is fixedly installed with a rotating seat (5), the side of the rotating seat (5) is fixedly connected with a first pulling column (6), the moving seat (7) is provided with a first pulling groove (8), the first pulling column (6) is arranged in the moving seat (7), and the shell (1) is provided with a lock cylinder for adjusting the lock tongue structure.

2. The U-lock according to claim 1, characterized in that: The lock cylinder comprises a lock shell (19), a lock cylinder (20) and a second pulling column (21), the lock shell (19) is fixedly installed in the shell (1), the lock cylinder (20) is movably installed in the lock shell (19), and the second pulling column (21) is provided with two groups, and the two groups of second pulling columns (21) are fixedly connected to the ends of the lock shell (19).

3. The U-lock of claim 2, wherein: The moving seat (7) is provided with a second pulling groove (9), one group of the second pulling columns (21) is arranged in the second pulling groove (9), and the other group of the second pulling columns (21) is in contact with the side of the speed reducer motor (4).

4. The U-lock of claim 1, wherein: The fixed seat (13) is provided with a plug-in groove (14), the lower end of the moving seat (7) is movably inserted into the plug-in groove (14), and the lower end of the reset spring (16) abuts against the inner bottom of the plug-in groove (14).

5. The U-lock of claim 1, wherein: The shell (1) is provided with a plug-in hole (12), and the upper end of the lock tongue connecting rod (10) is inserted into the plug-in hole (12).

6. The U-lock of claim 1, wherein: The shell (1) is fixedly installed with a battery (22) and a circuit board (23), and the speed reducer motor (4) and the battery (22) are electrically connected with the circuit board (23).

7. The U-lock of claim 6, wherein: The circuit board (23) is electrically connected with a charging port (24), and the charging port (24) is installed in the shell (1).

8. The U-lock of claim 1, wherein: The side of the moving seat (7) is fixedly connected with a limiting block (17), the fixed seat (13) is provided with a limiting groove (18) for positioning the limiting block (17), and the limiting block (17) is slidably installed in the limiting groove (18).

9. The U-lock of claim 1, wherein: The side of the shell (1) is fixedly installed with a sealing cover (2).

Images