Spring bolt locking mechanism

Abstract

The utility model provides a lock tongue and lock bar mechanism, and belongs to the technical field of door locks. The problem that a lock tongue and lock bar part of an existing door lock is complex in structure and needs to be optimized is solved. The spring bolt locking mechanism comprises an outer cylinder assembly used for being fixed to a wall, a shell assembly used for being in butt joint with the outer cylinder assembly to form a spring bolt cavity, a spring bolt assembly which is arranged in the spring bolt cavity and can stretch out and draw back, and a driving assembly used for driving the spring bolt assembly to stretch out and draw back. The spring bolt assembly comprises a bolt body with an inner hole, an inner rod arranged in the inner hole and a riveting pin used for riveting the bolt body and the inner rod together, a push rod is arranged at the end, opposite to the bolt body, of the inner rod, and a push hole is formed in the upper portion of the push rod. Compared with the prior art, the locking and unlocking mode of the spring bolt locking mechanism is simple and reliable, free adjustment can be achieved according to the depth of a mounting hole in a door, and adaptability is high.

Description

Technical Field

[0001] This utility model belongs to the field of door lock technology and relates to a locking mechanism for a latch. Background Technology

[0002] The degree of optimization in the design of the latch directly affects the ease of unlocking and the performance of the door lock. The latch is an important component of a door lock, and its main function is to lock and unlock the door.

[0003] Currently, the locking mechanism of door locks is highly complex, requiring numerous components to work together during production to achieve the locking and unlocking function. Therefore, simplifying its structure while maintaining its intended performance has been a continuous direction for optimization and development in the door lock industry. Summary of the Invention

[0004] The purpose of this utility model is to address the problem that the existing door lock's bolt locking mechanism has a complex structure that needs optimization, and to propose a bolt locking mechanism.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A locking tongue mechanism, characterized in that: it includes an outer cylinder assembly for fixing to a wall, a shell assembly for docking with the outer cylinder assembly to form a locking tongue cavity, a locking tongue assembly that can extend and retract within the locking tongue cavity, and a drive assembly for driving the locking tongue assembly to extend and retract. The locking tongue assembly includes a tongue body with an inner hole, an inner rod disposed in the inner hole, and a rivet for riveting the tongue body and the inner rod together. A push rod is provided at the end of the inner rod facing away from the tongue body, and a push hole is provided above the push rod.

[0007] In the above-mentioned locking mechanism, a first rivet hole is provided on the side of the tongue body, and a second rivet hole is provided on the side of the inner rod. After the first rivet hole and the second rivet hole are aligned, the rivet pin passes through to connect the tongue body and the inner rod.

[0008] In the aforementioned locking mechanism, the driving component includes a rotating arm rotatably disposed within the housing assembly and a spring plate locked within the housing assembly. The top of the rotating arm is a push head, which is locked in a push hole, and the spring plate locks the rotating arm from the bottom upwards.

[0009] In the aforementioned locking mechanism, the outer shell assembly includes two sets of symmetrically assembled cover plates. An inner cylinder is fixedly provided at the end of the cover plate, and the inner cylinder is connected to the outer cylinder assembly, forming a locking lug cavity in the middle of the inner cylinder.

[0010] In the aforementioned locking mechanism, the outer cylinder assembly includes an outer cylinder body, a fixing ring, a guide coil, and a guide plate. The side of the outer cylinder body is provided with a recessed platform, and the outside of the fixing ring is provided with a recessed hole. The recessed platform is engaged in the recessed hole to fix the outer cylinder body and the fixing ring together. The guide coil is disposed between the outer cylinder body and the fixing ring, and the guide plate is riveted to the fixing ring with a flange.

[0011] In the aforementioned locking mechanism, the cover plate is provided with a pin, and the outer cylinder is provided with a rotating guide groove with a spiral path, and the pin is embedded in the rotating guide groove.

[0012] Compared with existing technologies, the locking mechanism of this latch is simple and reliable in its opening and closing method, and can be freely adjusted according to the depth of the mounting hole inside the door, making it highly adaptable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the semi-explosive structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the fully exploded structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the locking tongue assembly;

[0016] Figure 4 This is a structural schematic diagram of the outer cylinder assembly;

[0017] Figure 5 This is a schematic diagram of the structure of this utility model in the locked state;

[0018] Figure 6 This is a structural diagram of the unlocked state of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of this utility model, which changes the positions of two different mounting holes;

[0020] In the diagram, 1. Tongue; 2. Inner rod; 3. Rivet pin; 4. Push rod; 5. Push hole; 6. Spring; 7. Push head; 8. Cover plate; 9. Inner cylinder; 10. Outer cylinder; 11. Fixing ring; 12. Conductor coil; 13. Guide plate; 14. Rotary guide groove; 15. Rotary arm; 16. Pin; 17. Recess. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figure 1 and Figure 2As shown, this locking tongue mechanism includes an outer cylinder assembly for fixing to a wall, a housing assembly for docking with the outer cylinder assembly to form a locking tongue cavity, a locking tongue assembly that can extend and retract within the locking tongue cavity, and a drive assembly for driving the locking tongue assembly to extend and retract.

[0023] like Figure 3 As shown, the latch assembly includes a tongue body 1 with an inner hole, an inner rod 2 disposed in the inner hole, and a rivet 3 for riveting the tongue body and the inner rod together. A push rod 4 is provided at the end of the inner rod facing away from the tongue body, and a push hole 5 is provided above the push rod.

[0024] like Figure 2 As shown, a first rivet hole is provided on the side of the tongue body, and a second rivet hole is provided on the side of the inner rod. After the first rivet hole and the second rivet hole are aligned, the rivet pin passes through to connect the tongue body and the inner rod.

[0025] like Figure 1 and Figure 2 As shown, the drive assembly includes a rotating arm 15 rotatably disposed within the housing assembly and a spring plate 6 locked within the housing assembly. The top of the rotating arm is a push head 7, which is locked in a push hole, and the spring plate locks the rotating arm from the bottom upwards.

[0026] like Figure 2 As shown, the outer shell assembly includes two sets of symmetrically assembled cover plates 8. An inner cylinder 9 is fixedly provided at the end of the cover plate. The inner cylinder is connected to the outer cylinder assembly, and a locking tongue cavity is formed in the middle of the inner cylinder.

[0027] like Figure 4 The outer cylinder assembly includes an outer cylinder body 10, a fixing ring 11, a conductor coil 12, and a guide plate 13. The side of the outer cylinder body is provided with a recessed platform 17, and the outside of the fixing ring is provided with a recessed hole. The recessed platform is engaged in the recessed hole to fix the outer cylinder body and the fixing ring together. The conductor coil is located between the outer cylinder body and the fixing ring, and the guide plate is riveted to the fixing ring with a flange.

[0028] like Figure 7 As shown, the cover plate is provided with a pin 16, and the outer cylinder is provided with a rotating guide groove 14 with a spiral path, and the pin is embedded in the rotating guide groove.

[0029] Locked status as follows Figure 5 As shown, by rotating the arm counterclockwise by 90°, the inner rod of 7 is pushed to the left, and the locking tongue assembly is pushed out. Under the action of the spring, the position of the arm is parallel to the spring, forming an upward pushing force, so that the push head is stuck in the push hole to form a locking point position to lock the locking tongue assembly.

[0030] Unlocking status as follows Figure 6 As shown, by rotating the arm 90° clockwise, the inner rod is pushed to the right, and the latch assembly is retracted. Under the action of the spring, the position of the arm is parallel to the spring, forming an upward thrust, which makes the push head stuck in the push hole to form a locking point position to unlock the latch assembly.

[0031] like Figure 7 As shown, by interlocking the pin and the rotating guide groove, the entire mechanism has the function of telescopic adjustment of length after the cover plate and the outer cylinder rotate, so as to adapt to various mounting holes of different depths.

[0032] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A locking mechanism for a locking tongue, characterized in that: It includes an outer cylinder assembly for fixing to a wall, a housing assembly for docking with the outer cylinder assembly to form a locking tongue cavity, a locking tongue assembly that can extend and retract within the locking tongue cavity, and a drive assembly for driving the locking tongue assembly to extend and retract. The locking tongue assembly includes a tongue body with an inner hole, an inner rod disposed in the inner hole, and a rivet for riveting the tongue body and the inner rod together. A push rod is provided at the end of the inner rod facing away from the tongue body, and a push hole is provided above the push rod.

2. The locking mechanism for a locking tongue according to claim 1, characterized in that: The tongue body has a first rivet hole on its side and the inner rod has a second rivet hole on its side. After the first rivet hole and the second rivet hole are aligned, the rivet pin passes through to connect the tongue body and the inner rod.

3. The locking mechanism for a locking tongue according to claim 1, characterized in that: The drive assembly includes a rotating arm rotatably disposed within the housing assembly and a spring plate locked within the housing assembly. The top of the rotating arm is a push head, which is locked in a push hole, and the spring plate locks the rotating arm from the bottom upwards.

4. The locking mechanism for a locking tongue according to claim 1, characterized in that: The outer shell assembly includes two sets of symmetrically assembled cover plates. An inner cylinder is fixedly provided at the end of the cover plate. The inner cylinder is connected to the outer cylinder assembly, and a locking tongue cavity is formed in the middle of the inner cylinder.

5. A locking tongue mechanism according to claim 4, characterized in that: The outer cylinder assembly includes an outer cylinder body, a fixing ring, a guide coil, and a guide plate. The side of the outer cylinder body is provided with a recessed platform, and the outside of the fixing ring is provided with a recessed hole. The recessed platform is engaged in the recessed hole to fix the outer cylinder body and the fixing ring together. The guide coil is located between the outer cylinder body and the fixing ring, and the guide plate is riveted to the fixing ring with a flange.

6. A locking tongue mechanism according to claim 5, characterized in that: The cover plate is provided with a pin, and the outer cylinder is provided with a rotating guide groove with a spiral path, and the pin is embedded in the rotating guide groove.

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