Tail door lock capable of preventing mistaken locking

Abstract

The utility model provides a tail door lock capable of preventing mistaken locking. Comprising a base, a large spring bolt, a small spring bolt, a top cover, an open cantilever, a motor cover plate, a self-locking rotating arm, a worm gear, a connector, a shaft sleeve, an unlocking rotating arm, a first self-suction rotating arm, a second self-suction rotating arm, a self-suction arm, a spring bolt shaft, a gear shaft, a rotating arm rivet, a gear, a large buffer block, a small buffer block, a large spring bolt torsion spring, a small spring bolt pressure spring and a self-locking torsion spring. According to the anti-mistaken-locking tail door lock, the double-spring-bolt system and the self-locking mechanism, it is ensured that the tail door can be kept in the locking state even under the extreme conditions such as accidental power failure, and therefore the use safety is improved, and the anti-mistaken-locking tail door lock is suitable for being popularized and used. And through the design of the buffer block, the impact force and noise generated when the tail door is closed are effectively reduced, the user experience is improved, and the safer and more reliable using effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to door locks, and in particular to an anti-mislocking tailgate lock. Background Art

[0002] A door lock is a device used to control the opening and closing of a door, usually made of metal. They are widely used in home, commercial and industrial environments to provide security and convenience. The basic principle of a door lock is to lock or release the door by moving parts such as a latch or bolt. Modern door locks are usually equipped with a variety of unlocking methods such as keys, passwords, fingerprint recognition, and smartphone applications to meet the needs of different users. There are many types of door locks, including mechanical locks, electronic locks, fingerprint locks, etc. Mechanical locks are operated by mechanical keys or knobs and are one of the most common types; electronic locks are unlocked by electronic passwords or smart cards, providing higher security and convenience; fingerprint locks are unlocked by identifying the user's fingerprint and have a high degree of security. Whether it is home, commercial or industrial applications, choosing a door lock that suits the needs is an important step to ensure safety and convenience. During use, the existing door locks have a poor effect on preventing accidental locking. The door locks are accidentally opened or closed due to touching or improper operation. In emergency situations, such as fire or medical emergencies, it will affect rescue, so there is a special need for an anti-accidental lock tailgate lock.

[0003] However, with existing door locks, most door locks may not remain locked during use due to power outages or other emergencies, thereby increasing security risks. Ordinary door locks may generate greater impact force and noise when closed, affecting user experience. Utility Model Content

[0004] The purpose of the utility model is to provide a tailgate lock that prevents accidental locking, so as to solve the problem that most of the existing door locks mentioned in the background technology have poor anti-accidental locking effect during use, and the door lock may be accidentally opened or closed due to improper touch or operation, which will affect rescue in emergency situations, such as fire or medical emergencies.

[0005] To achieve the above-mentioned purpose, the utility model provides an anti-mislocking tailgate lock, including a base, a large lock tongue, a small lock tongue, a top cover, an open cantilever, a motor cover, a self-locking rotating arm, a worm gear, a connector, a bushing, an unlocking rotating arm, a first self-priming rotating arm, a second self-priming rotating arm, a self-priming arm, a lock tongue shaft, a gear shaft, a rotating arm rivet, a gear, a large buffer block, a small buffer block, a large lock tongue torsion spring, a small lock tongue pressure spring, a self-locking torsion spring, a worm torsion spring, an open torsion spring, a self-priming torsion spring, a limiting torsion spring, a switch, a motor and a cable assembly.

[0006] Preferably, a top cover is fixedly connected to the top surface of the base.

[0007] Preferably, the outer sides of the large lock tongue and the small lock tongue are respectively sleeved with a large lock tongue torsion spring and a small lock tongue pressure spring.

[0008] Preferably, the motor is electrically connected to the switch via a cable assembly.

[0009] Preferably, the self-locking rotating arm, the first self-priming rotating arm and the second self-priming rotating arm are connected to the locking tongue shaft through a shaft sleeve.

[0010] Preferably, the worm wheel is meshed with the gear and is fixedly connected to the unlocking swing arm via a gear shaft.

[0011] Preferably, the inner surfaces of the open cantilever, the self-locking rotary arm, the unlocking rotary arm, the first self-priming rotary arm and the second self-priming rotary arm are all rotatably connected with rotary arm rivets.

[0012] Preferably, the large buffer block and the small buffer block are arranged inside the base.

[0013] Preferably, the self-locking torsion spring, the volute torsion spring, the open torsion spring, the self-priming torsion spring and the limiting torsion spring are all fixedly connected to the inner surface of the base.

[0014] Preferably, the spiral arm rivet is fixedly connected to the inner surface of the base.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the anti-mislocking tailgate lock, the double lock tongue system and the self-locking mechanism ensure that the tailgate can remain locked even under extreme conditions, such as accidental power failure, thereby improving the safety of use; the design of the buffer block effectively reduces the impact force and noise when the tailgate is closed, improves the user experience, and achieves a safer and more reliable use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the top cover and the cable assembly cooperating with each other in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the base and the connector cooperating with each other in the utility model;

[0019] Figure 4 This is a schematic diagram of the base structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the large-sized lock tongue, the small-sized lock tongue and the open cantilever structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the top cover structure of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the motor cover of the utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the self-locking rotating arm, worm gear and connector of the utility model;

[0024] Fig. 9 This is a schematic diagram of the structure of the shaft sleeve and the unlocking swing arm of the utility model;

[0025] Fig.10 It is a schematic diagram of the structure of the first self-priming rotating arm, the second self-priming rotating arm and the self-priming arm of the utility model;

[0026] Fig.11 This is a schematic diagram of the bolt shaft, gear shaft, spiral arm rivet and gear structure of the utility model;

[0027] Fig.12 This is a schematic diagram of the structure of a large buffer block and a small buffer block of the utility model;

[0028] Fig.13 It is a schematic diagram of the structure of each spring of the utility model;

[0029] Fig.14 This is a schematic diagram of the switch and motor structure of the utility model;

[0030] Fig.15 This is a schematic diagram of the structure of the cable assembly of the utility model.

[0031] In the figure: 1. Base; 2. Large lock tongue; 3. Small lock tongue; 4. Top cover; 5. Open cantilever; 6. Motor cover; 7. Self-locking rotating arm; 8. Worm gear; 9. Connector; 10. Bushing; 11. Unlocking rotating arm; 12. First self-priming rotating arm; 13. Second self-priming rotating arm; 14. Self-priming arm; 15. Lock tongue shaft; 16. Gear shaft; 17. Rotary arm rivet; 18. Gear; 19. Large buffer block; 20. Small buffer block; 21. Large lock tongue torsion spring; 22. Small lock tongue pressure spring; 23. Self-locking torsion spring; 24. Worm torsion spring; 25. Open torsion spring; 26. Self-priming torsion spring; 27. Limiting torsion spring; 28. Switch; 29. ​​Motor; 30. Cable assembly. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-15 The utility model provides a tailgate lock that prevents accidental locking: it includes a base 1, a large lock tongue 2, a small lock tongue 3, a top cover 4, an open cantilever 5, a motor cover 6, an open cantilever 5, a self-locking rotating arm 7, a worm gear 8, a connector 9, a sleeve 10, an unlocking rotating arm 11, a first self-priming rotating arm 12, a second self-priming rotating arm 13, a self-priming arm 14, a lock tongue shaft 15, a gear shaft 16, a swing arm rivet 17, a gear 18, a large buffer block 19, a small buffer block 20, a large lock tongue torsion spring 21, a small lock tongue pressure spring 22, a self-locking torsion spring 23, a worm torsion spring 24, an open torsion spring 25, a self-priming torsion spring 26, a limiting torsion spring 27, a switch 28, a motor 29 and a cable assembly 30.

[0034] Furthermore, a top cover 4 is fixedly connected to the top surface of the base 1, and the base 1 and the top cover 4 form a closed box for installing other components inside to ensure the stability of the internal structure of the lock, while preventing dust and moisture from entering and affecting the normal operation of the lock.

[0035] Furthermore, the outer surfaces of the large lock tongue 2 and the small lock tongue 3 are respectively provided with a large lock tongue torsion spring 21 and a small lock tongue pressure spring 22. The large lock tongue 2 and the small lock tongue 3 are respectively connected to the corresponding torsion spring and pressure spring, so that the locking and unlocking functions can be achieved by the elastic force of the spring.

[0036] Furthermore, the motor 29 is electrically connected to the switch 28 via the cable assembly 30 , and the motor 29 is connected to the switch 28 via the cable assembly 30 for controlling the actions of each locking tongue.

[0037] Furthermore, the self-locking rotating arm 7, the first self-priming rotating arm 12 and the second self-priming rotating arm 13 are connected to the lock tongue shaft 15 through the shaft sleeve 10, transmitting the power of the motor 29, and effectively transmitting the rotational power of the motor 29 to the lock tongue to achieve control.

[0038] Furthermore, the worm wheel 8 meshes with the gear 18 and is fixedly connected to the unlocking swing arm 11 through the gear shaft 16 to control the position of the lock tongue. The worm wheel 8 transmission has a large transmission ratio to ensure that the lock tongue can be accurately moved to the specified position, and has self-locking properties to achieve reliable locking.

[0039] Furthermore, the inner surfaces of the open cantilever 5, the self-locking rotating arm 7, the unlocking rotating arm 11, the first self-priming rotating arm 12 and the second self-priming rotating arm 13 are rotatably connected with a rotating arm rivet 17 for fixed connection. The purpose of this design is to ensure a firm connection between the parts to prevent loosening during use.

[0040] Furthermore, a large buffer block 19 and a small buffer block 20 are arranged inside the base 1 to reduce vibration and noise, improve user comfort during use, and reduce noise generated during operation.

[0041] Furthermore, the self-locking torsion spring 23, the volute torsion spring 24, the open torsion spring 25, the self-priming torsion spring 26 and the limiting torsion spring 27 are all fixedly connected to the inner surface of the base 1. The springs are used to provide a restoring force to keep the parts in a predetermined position, which ensures that the parts can automatically return to their original positions after use and be ready for the next operation.

[0042] Furthermore, the arm rivets 17 are fixedly connected to the inner surface of the base 1 for mounting each cantilever on the base 1 .

[0043] Working principle: A tailgate lock that prevents accidental locking. The user activates the tailgate lock through a switch 28. The activation signal triggers the motor 29, and the motor 29 starts to rotate. The rotational power of the motor 29 is transmitted to the gear shaft 16 through the cable assembly 30. The gear shaft 16 drives the gear 18 to rotate and mesh with the worm gear 8. The rotation of the worm gear 8 causes the self-locking rotating arm 7, the first self-priming rotating arm 12 and the second self-priming rotating arm 13 to rotate through the shaft sleeve 10. The movement of the rotating arm causes the large lock tongue 2 and the small lock tongue 3 to move through the lock tongue shaft 15, thereby achieving locking or unlocking. Once the lock tongue reaches the predetermined position, the motor 29 stops running, the locking or unlocking process is completed, the large lock tongue 2 and the small lock tongue 3 provide double protection, even if one of them fails to lock correctly, the other can keep the tailgate closed, the self-locking rotating arm 7 can keep the lock tongue in the locked position when there is no electricity, preventing mislocking caused by accidental power failure, various torsion springs ensure that the lock tongue can quickly return to its original position after being released, reducing the chance of misoperation, the large buffer block 19 and the small buffer block 20 reduce the impact force when the tailgate is closed, avoiding mislocking caused by impact, thus completing an anti-mislocking tailgate lock.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the implementation rules without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tailgate lock that prevents accidental locking, characterized in that: The invention comprises a base (1), a large lock tongue (2), a small lock tongue (3), a top cover (4), an open cantilever (5), a motor cover (6), a self-locking rotating arm (7), a worm gear (8), a connector (9), a shaft sleeve (10), an unlocking rotating arm (11), a first self-priming rotating arm (12), a second self-priming rotating arm (13), a self-priming arm (14), a lock tongue shaft (15), a gear shaft (16), a rotating arm rivet (17), a gear (18), a large buffer block (19), a small buffer block (20), a large lock tongue torsion spring (21), a small lock tongue pressure spring (22), a self-locking torsion spring (23), a worm torsion spring (24), an open torsion spring (25), a self-priming torsion spring (26), a limiting torsion spring (27), a switch (28), and a motor (29). and a cable assembly (30); the outer surfaces of the large lock tongue (2) and the small lock tongue (3) are respectively sleeved with a large lock tongue torsion spring (21) and a small lock tongue pressure spring (22); the self-locking rotating arm (7), the first self-priming rotating arm (12) and the second self-priming rotating arm (13) are connected to the lock tongue shaft (15) through a shaft sleeve (10); the inner surfaces of the open cantilever (5), the self-locking rotating arm (7), the unlocking rotating arm (11), the first self-priming rotating arm (12) and the second self-priming rotating arm (13) are all rotatably connected with a rotating arm rivet (17); the self-locking torsion spring (23), the worm torsion spring (24), the open torsion spring (25), the self-priming torsion spring (26) and the limiting torsion spring (27) are all fixedly connected to the inner surface of the base (1).

2. The anti-mislock tailgate lock according to claim 1, characterized in that: A top cover (4) is fixedly connected to the top surface of the base (1).

3. The anti-mislock tailgate lock according to claim 1, characterized in that: The motor (29) is electrically connected to the switch (28) via a cable assembly (30).

4. The anti-mislock tailgate lock according to claim 1, characterized in that: The worm wheel (8) is meshed with the gear (18) and is fixedly connected to the unlocking swing arm (11) via the gear shaft (16).

5. The anti-mislock tailgate lock according to claim 1, characterized in that: The large buffer block (19) and the small buffer block (20) are arranged inside the base (1).

6. The anti-mislock tailgate lock according to claim 1, characterized in that: The spiral arm rivet (17) is fixedly connected to the inner surface of the base (1).

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