Fixed adjustment-free spring bolt
By using a fixed, non-adjustable bolt design, the problem of easy displacement of the traditional bolt dial is solved, achieving precise bolt engagement and stability, and improving the service life and security of the lock.
Patent Information
- Application Number
- CN202423159626.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In traditional lock tongue designs, the dial ring is prone to displacement or asymmetrical movement, leading to unstable lock operation, reduced security, and insufficient lock tongue stability and anti-misoperation functions.
A fixed, non-adjustable lock tongue is designed. The first and second dial rings are connected by the lock tongue bracket and the lock tongue pressure plate. Combined with the lock tongue, pull plate and brake bracket, the dial rings are ensured to cooperate precisely when unlocking or locking. The safety tongue bracket and spring connecting components are used to improve stability and prevent misoperation.
It achieves precise coordination of the bolt during unlocking or locking, avoids displacement or asymmetrical movement of the dial, improves the stability and lifespan of the lock, and enhances security.
Smart Images
Figure CN223661557U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of locking tongue technology, specifically relating to a fixed locking tongue that does not require adjustment. Background Technology
[0002] In modern lock systems, the bolt, as a crucial component, plays a central role in locking and unlocking. Traditional bolt designs suffer from instability issues during use, particularly regarding the engagement of the locking ring and the overall stability of the bolt. The locking ring is a key component in the bolt system, responsible for controlling its movement during locking and unlocking. However, in some traditional bolt designs, the locking ring often shifts or exhibits asymmetrical movement, leading to inaccurate engagement during locking and unlocking. This not only affects the smoothness of use but can also degrade the lock's security performance and even cause malfunctions after prolonged use, reducing the lock's lifespan.
[0003] Furthermore, existing bolt designs have certain shortcomings in terms of bolt stability and anti-misoperation functionality. During unlocking or locking, the bolt may loosen or shift due to external force or improper operation, posing a security risk to the lock.
[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content
[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a fixed, adjustment-free locking tongue that can precisely cooperate when unlocking or locking, avoid displacement or asymmetrical movement of the dial ring, ensure stable use, and improve service life, so as to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixed, non-adjustable latch, comprising a latch cylinder, a latch bracket and a latch pressure plate connected to the rear portion of the latch cylinder, a first dial ring and a second dial ring connected between the latch bracket and the latch pressure plate, a latch tongue connected to the middle portion of the latch cylinder, a latch pull plate and a brake bracket connected to the rear portion of the latch tongue, the brake bracket contacting the first dial ring, the latch pull plate contacting the second dial ring, a dial ring protrusion at the front portion of the latch bracket, the first dial ring connected to the dial ring protrusion, a dial ring fulcrum at the rear portion of the latch bracket, and the second dial ring connected to the dial ring fulcrum.
[0007] Furthermore, the latch plate is connected to the latch bracket, and the latch bracket has symmetrical bracket positioning points protruding on both sides.
[0008] Furthermore, the upper rear part of the locking tongue is provided with a safety tongue bracket, the front part of the safety tongue bracket is provided with a tongue bracket slot, a safety tongue is connected to the safety tongue bracket, and the rear part of the safety tongue is provided with a tongue bracket locking part that is adapted to the tongue bracket locking part, and the tongue bracket locking part and the tongue bracket locking part are engaged and connected.
[0009] Furthermore, a first spring connecting part protrudes from the lower rear part of the locking tongue, and a braking spring is connected to the rear part of the first spring connecting part.
[0010] Furthermore, a second spring connecting part protrudes from the rear of the safety tongue, and a locking tongue spring is connected to the rear of the second spring connecting part.
[0011] Furthermore, the front part of the latch cylinder is provided with a plate connecting part, the outer side of the plate connecting part is provided with a latch liner, the two sides of the plate connecting part are symmetrically provided with connecting holes, the two sides of the latch liner are symmetrically provided with connecting pins, the two connecting pins are correspondingly connected in the two connecting holes, and are fixed by fasteners.
[0012] The present invention has the following advantages: the rear part of the latch cylinder is connected to a latch bracket and a latch pressure plate, and a first dial ring and a second dial ring are connected between the latch bracket and the latch pressure plate, respectively. The middle part of the latch cylinder is connected to the latch tongue, and the rear part of the latch tongue is connected to a latch pull plate and a brake bracket, respectively. The brake bracket is in contact with the first dial ring, and the latch pull plate is in contact with the second dial ring. The front part of the latch bracket is provided with a dial ring protrusion, and the first dial ring is connected to the dial ring protrusion. The rear part of the latch bracket is provided with a dial ring fulcrum, and the second dial ring is connected to the dial ring fulcrum. The fixed, adjustment-free latch of the present invention can accurately cooperate when unlocking or locking, avoid the dial ring from shifting or moving asymmetrically, and is stable in use, thus improving its service life. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the locking tongue support structure of this utility model.
[0015] Figure 3 This is a schematic diagram showing the exploded structure of the locking tongue, safety tongue holder, and safety tongue of this utility model.
[0016] Figure 4 This is a schematic diagram of the locking tongue pressure plate structure of this utility model.
[0017] Reference numerals: 10 for latch cylinder; 20 for latch bracket; 30 for latch pressure plate; 40 for first deflector ring; 50 for second deflector ring; 60 for latch tongue; 61 for latch tongue pull plate; 62 for brake bracket; 21 for bracket positioning point; 22 for deflector ring protrusion; 23 for deflector ring fulcrum; 63 for safety latch; 631 for latch slot; 64 for safety latch; 641 for latch slot; 65 for first spring connecting part; 66 for brake spring; 642 for second spring connecting part; 67 for latch tongue spring; 11 for plate connecting part; 70 for latch tongue liner; 111 for connecting through hole; 71 for connecting through post. Detailed Implementation
[0018] like Figures 1 to 4 As shown, a fixed, non-adjustable latch includes a latch cylinder 10. A latch bracket 20 and a latch pressure plate 30 are connected to the rear portion of the latch cylinder 10. A first deflector 40 and a second deflector 50 are connected between the latch bracket 20 and the latch pressure plate 30. A latch tongue 60 is connected to the middle portion of the latch cylinder 10. A latch pull plate 61 and a brake bracket 62 are connected to the rear portion of the latch tongue 60. The brake bracket 62 contacts the first deflector 40, and the latch pull plate 61 contacts the second deflector 50. During locking: when the latch tongue 60 is in the locked position, the latch pull plate 61 is fixed, and the contact between the first deflector 40 and the brake bracket 62 provides... With sufficient friction, the latch 60 is firmly fixed inside the latch cylinder 10. At this time, the second dial 50 is not in contact with the latch pull plate 61, so the latch 60 cannot be pushed. When unlocking: when an external force is applied to the latch pull plate 61 (usually by a key or other operation), the second dial 50 will contact the latch pull plate 61 and push the latch 60 to move. When the latch 60 is pushed, the contact between the first dial 40 and the brake bracket 62 is released, and the latch 60 can be smoothly pushed out. Due to the presence of the brake bracket 62, it can ensure that the latch 60 will not accidentally slide or deviate before it is fully unlocked.
[0019] In practical implementation, the latch plate 30 is connected to the latch bracket 20. The latch bracket 20 has symmetrical bracket positioning points 21 protruding on both sides. The front of the latch bracket 20 has a dial ring protrusion 22, and the first dial ring 40 is connected to the dial ring protrusion 22. The rear of the latch bracket 20 has a dial ring fulcrum 23, and the second dial ring 50 is connected to the dial ring fulcrum 23. In use, the bracket positioning points 21 limit the free movement range of the bracket, ensuring that the latch bracket 20 runs only along a predetermined track, thereby effectively avoiding any unstable factors or loss of control during operation. The design of the dial ring protrusion 22 provides a firm connection point for the first dial ring 40, enabling it to stably engage with the front of the latch bracket 20, ensuring that the dial ring will not fall off or shift during operation. The dial ring fulcrum 23 provides a stable support position for the second dial ring 50, enabling it to precisely engage during unlocking or locking, preventing the dial ring from shifting or moving asymmetrically, ensuring stable use and improving service life.
[0020] In practical implementation, the upper rear part of the locking tongue 60 is provided with a safety tongue bracket 63, the front part of the safety tongue bracket 63 is provided with a tongue bracket locking position 631, a safety tongue 64 is connected to the safety tongue bracket 63, and the rear part of the safety tongue 64 is provided with a tongue bracket locking part 641 that is adapted to the tongue bracket locking position 631. The tongue bracket locking part 641 and the tongue bracket locking position 631 are engaged and connected. In use, when the locking tongue system enters the locked state, the safety tongue 64, through the engagement with the tongue bracket locking position 631, ensures that the locking tongue 60 is locked. 0. It will not loosen or shift due to external interference. This locking connection enhances the fixation of the lock tongue 60, ensuring that the door or other locked objects remain locked. Unlocked state: During the unlocking process, the locking connection between the locking part of the lock tongue 64 and the lock tongue holder 631 is released or disengaged, so that the lock tongue 60 can smoothly move into or out of the lock tongue cylinder 10. At this time, the function of the lock tongue 64 during unlocking is to prevent the lock tongue 60 from unlocking prematurely or from being misoperated during the unlocking process.
[0021] In practical implementation, the lower rear part of the locking tongue 60 is provided with a first spring connecting part 65, and the rear part of the first spring connecting part 65 is connected to a brake spring 66. The rear part of the locking tongue 64 is provided with a second spring connecting part 642, and the rear part of the second spring connecting part 642 is connected to a locking tongue spring 67. In use, when the locking tongue 60 is unlocking or locking, the design of the first spring connecting part 65 allows the brake spring 66 to apply a reverse force to the locking tongue 60, preventing the locking tongue 60 from moving suddenly or becoming unstable due to external impact. The brake spring 66 helps control the movement speed of the locking tongue 60 through the action of elasticity, avoiding operation that is too fast or too slow. The second spring connection 642, through the elastic force provided by the latch spring 67, ensures that the safety latch 64 can automatically return to its original position or remain in the locked position during operation. With the cooperation of the latch 60 and the safety latch 64, the counterforce of the latch spring 67 can help ensure that the safety latch 64 is released or engaged at the correct time, thereby enhancing the overall safety of the latch system.
[0022] In practical implementation, the front of the latch cylinder 10 is provided with a plate connecting part 11, and the outer side of the plate connecting part 11 is provided with a latch liner 70. The left and right sides of the plate connecting part 11 are symmetrically provided with connecting through holes 111, and the left and right sides of the latch liner 70 are symmetrically provided with connecting through posts 71. The two connecting through posts 71 are connected to the two connecting through holes 111 respectively and are fixed by fasteners. In use, the function of the latch liner 70 is to protect the inside of the latch cylinder 10 from friction and wear. Especially when the latch moves in and out, it can effectively reduce friction and reduce the wear of internal parts, thereby improving the durability of the latch cylinder.
[0023] In summary, the rear part of the latch cylinder 10 is connected to a latch bracket 20 and a latch pressure plate 30. A first deflector ring 40 and a second deflector ring 50 are connected between the latch bracket 20 and the latch pressure plate 30, respectively. The middle part of the latch cylinder 10 is connected to a latch tongue 60. The rear part of the latch tongue 60 is connected to a latch pull plate 61 and a brake bracket 62. The brake bracket 62 is in contact with the first deflector ring 40, and the latch pull plate 61 is in contact with the second deflector ring 50. The front part of the latch bracket 20 is provided with a deflector ring protrusion 22, and the first deflector ring 40 is connected to the deflector ring protrusion 22. The rear part of the latch bracket 20 is provided with a deflector ring fulcrum 23, and the second deflector ring 50 is connected to the deflector ring fulcrum 23. The fixed, adjustment-free latch of this utility model can accurately cooperate when unlocking or locking, avoid displacement or asymmetrical movement of the deflector ring, ensure stable use, and improve service life.
Claims
1. A fixed, non-adjustable locking tongue, characterized in that, It includes a latch cylinder (10), the rear part of which is connected to a latch bracket (20) and a latch pressure plate (30), a first deflector (40) and a second deflector (50) are connected between the latch bracket (20) and the latch pressure plate (30), the middle part of which is connected to a latch tongue (60), the rear part of which is connected to a latch pull plate (61) and a brake bracket (62), the brake bracket (62) is in contact with the first deflector (40), the latch pull plate (61) is in contact with the second deflector (50), the front part of the latch bracket (20) is provided with a deflector protrusion (22), the first deflector (40) is connected to the deflector protrusion (22), the rear part of the latch bracket (20) is provided with a deflector fulcrum (23), and the second deflector (50) is connected to the deflector fulcrum (23).
2. The fixed, non-adjustable locking tongue according to claim 1, characterized in that, The latch plate (30) is connected to the latch bracket (20), and the latch bracket (20) has bracket positioning points (21) symmetrically protruding on both sides.
3. The fixed, non-adjustable locking tongue according to claim 1, characterized in that, The upper rear part of the locking tongue (60) is provided with a safety tongue bracket (63), the front part of the safety tongue bracket (63) is provided with a tongue bracket slot (631), a safety tongue (64) is connected to the safety tongue bracket (63), and the rear part of the safety tongue (64) is provided with a tongue bracket slot (641) that is adapted to the tongue bracket slot (631). The tongue bracket slot (641) and the tongue bracket slot (631) are engaged and connected.
4. The fixed, non-adjustable locking tongue according to claim 3, characterized in that, The lower rear part of the locking tongue (60) is provided with a first spring connecting part (65), and a brake spring (66) is connected to the rear part of the first spring connecting part (65).
5. The fixed, non-adjustable locking tongue according to claim 4, characterized in that, The rear of the safety tongue (64) is provided with a second spring connecting part (642), and the rear of the second spring connecting part (642) is connected to a locking tongue spring (67).
6. The fixed, non-adjustable locking tongue according to claim 1, characterized in that, The front part of the latch cylinder (10) is provided with a plate connecting part (11), and the outer side of the plate connecting part (11) is provided with a latch liner (70). The two sides of the plate connecting part (11) are symmetrically provided with connecting through holes (111), and the two sides of the latch liner (70) are symmetrically provided with connecting through posts (71). The two connecting through posts (71) are connected to the two connecting through holes (111) respectively, and are fixed by fasteners.