Connecting rod type handle lock system

Abstract

This utility model relates to a linkage-type crank lock system, including a crank lock, a transmission linkage, and several locking mechanisms. The locking mechanisms are arranged along the length of the transmission linkage and are driven by the transmission linkage to engage with the crank lock. The transmission linkage is equipped with several sliding positioning seats to guide the linear sliding of the transmission linkage. Each locking mechanism includes a locking pin and a locking seat. The locking pin is fixed to the transmission linkage and is driven by the transmission linkage to lock and unlock with the locking seat. The locking pin extends laterally along the transmission linkage, and its axial ends are lock heads protruding from the transmission linkage. The locking seat includes a mounting base plate, on which are two lock box portions arranged side by side laterally. There is a gap between the two lock box portions. The locking groove of the lock box portion has a lateral opening leading to the gap and a locking entrance corresponding to the sliding direction of the transmission linkage for the lock heads to enter and exit the locking groove. The transmission linkage passes through the gap, and the lock heads engage with the locking groove for locking and unlocking. It has the advantages of simple structure and reliable operation.

Description

Technical Field

[0001] This utility model relates to locks, specifically a linkage-type crank lock system. Background Technology

[0002] The lever-type crank lock system is a multi-point linkage locking system. By operating one locking point through the crank lock (main lock), other locking points are simultaneously synchronized through the linkage, thereby achieving multi-point linkage locking and improving security.

[0003] Traditional linkage locks have a swinging linkage and a swinging bolt connected to the linkage, which results in a complex structure.

[0004] In addition, the linkage-type crank lock system is only suitable for the position directly below the crank lock, parallel to the crank lock; therefore, the existing linkage-type crank lock system cannot be adapted to some scenarios where the lock and the door frame are at an angle. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the existing technology and provide a linkage-type crank lock system that is simple in structure and reliable in operation.

[0006] Another objective of this invention is that the linkage-type crank lock system adopts an angled arrangement between the locking point and the crank lock, making it suitable for use in scenarios where the lock and the door frame have an angular relationship.

[0007] A linkage-type crank lock system includes a crank lock, a transmission linkage, and several point-locking mechanisms. The point-locking mechanisms are arranged along the length of the transmission linkage and are driven and engaged with the crank lock via the transmission linkage. The system is characterized in that: the transmission linkage is equipped with several sliding positioning seats to guide the linear sliding of the transmission linkage; the point-locking mechanisms include a locking pin and a locking seat; the locking pin is fixed to the transmission linkage and driven by the transmission linkage to lock and unlock with the locking seat; the locking pin extends laterally along the transmission linkage and has locking heads protruding from both ends of the transmission linkage; the locking seat includes a mounting base plate with two lock box portions arranged side-by-side laterally on the mounting base plate, separated by a gap; each lock box portion has a locking cavity with a lateral opening leading to the gap and a locking entrance corresponding to the sliding direction of the transmission linkage for the locking heads to enter and exit the locking cavity; the transmission linkage passes through the gap, and the locking heads engage with the locking cavity for locking and unlocking.

[0008] Preferably, the lock base and the crank lock are installed at an angle to each other in the transverse direction.

[0009] Preferably, the transmission link is a flat plate, the locking pin is arranged along the thickness direction of the transmission link, the transmission link has a locking pin mounting plate segment formed after being twisted circumferentially by a predetermined angle, the transmission link has a plurality of locking pin mounting plate segments that correspond one-to-one with a plurality of point locking mechanisms, and the locking pin is mounted on the locking pin mounting plate segment.

[0010] Preferably, the angle between the lock base and the crank lock is 15° to 60°.

[0011] Preferably, the sliding positioning seat includes a base and a buckle. The base includes a lower mounting plate with a lower mounting hole and a U-shaped lower positioning groove on one side. The buckle includes an upper mounting plate with an upper mounting hole and a U-shaped upper positioning groove on one side. The buckle is fastened to the base, with the upper mounting plate overlapping the lower mounting plate. The upper mounting hole and the lower mounting hole are correspondingly fitted. The open end of the U-shaped upper positioning groove of the buckle is assembled with the open end of the U-shaped lower positioning groove, thereby forming a positioning through hole through which the transmission connecting rod passes via the U-shaped upper positioning groove and the U-shaped lower positioning groove.

[0012] The linkage-type crank lock system provided by this utility model enables the transmission linkage to directly drive the lock pin and lock seat to engage. It boasts advantages such as a simple and stable locking mechanism. Building upon linear sliding, it further employs an angled installation arrangement between the lock seat and the crank lock along the lateral direction, thus adapting to applications where the crank lock and door frame have an angular relationship.

[0013] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a specific embodiment of the present utility model; Figure 2 This is a schematic diagram of the lock seat structure according to a specific embodiment of the present utility model; Figure 3 This is a schematic diagram of the sliding positioning seat structure according to a specific embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of a specific embodiment two of this utility model; Figure 5 This is an axial view of a specific embodiment two of the present utility model (sliding positioning seat omitted); Figure 6 This is a schematic diagram of the transmission connecting rod in a specific embodiment of this utility model. Detailed Implementation

[0015] Specific Implementation Example 1: See Appendix Figures 1-3This utility model discloses a linkage-type crank lock system, including a crank lock 1, a transmission link 2, and several point locking mechanisms. The point locking mechanisms are arranged along the length of the transmission link 2 and are driven and engaged with the crank lock 1 via the transmission link 2. The crank lock 1 can be a conventional structural design in the field, so its specific structure will not be described in detail. The transmission box of the crank lock 1 is provided with an active link 11, and the transmission link 2 is connected to the active link 11 to realize the action of the transmission link 2 driven by the active link 11. The transmission link 2 is equipped with several sliding positioning seats 3 to guide the linear sliding of the transmission link 2, so that the sliding positioning seats 3 can realize the linear movement of the transmission link 2 after installation. The point locking mechanism includes a locking pin 4 and a locking seat 5. The locking pin 4 is fixed to the transmission link 2 and is driven by the transmission link 2 to lock and unlock with the locking seat 5. A lock head 41 extends laterally along the transmission link 2 and protrudes from both ends of the transmission link 2. The lock seat 5 includes a mounting base plate 51. Two lock box parts 52 are arranged side by side laterally on the mounting base plate 51. There is a gap 53 between the two lock box parts 52. The transmission link 2 passes through the gap 53. The lock box part 52 has a locking groove 521. The lock head 41 locks and unlocks with the locking groove 521. The locking groove 521 has a lateral opening a leading to the gap 52 and a locking entrance b corresponding to the sliding direction of the transmission link 2 and allowing the lock head 41 to enter and exit the locking groove 521. The lock pin 4 moves with the transmission link 2. The lock head 41 of the lock pin 4 enters the locking groove 521 along the locking entrance b, completing the locking of the lock pin 4 and the lock seat 5. The lock head 41 exits the locking groove 521 along the locking entrance b, completing the unlocking of the lock pin 4 and the lock seat 5. The transmission link 2 is preferably made of a flat plate, and the locking pin 4 is set along the thickness direction of the transmission link 2. This facilitates the installation of the locking pin and makes the structure compact.

[0016] To facilitate the fixed installation of the transmission link, the sliding positioning seat 3 includes a base 31 and a buckle 32. The base 31 includes a lower mounting plate 311 with a lower mounting hole and a U-shaped lower positioning groove 312 on one side. The buckle 32 includes an upper mounting plate 321 with an upper mounting hole and a U-shaped upper positioning groove 322 on one side. The buckle 32 is fastened to the base 31, with the upper mounting plate 321 overlapping the lower mounting plate 311. The upper mounting hole and the lower mounting hole are correspondingly engaged. The open end of the U-shaped upper positioning groove 322 of the buckle 32 is assembled with the open end of the U-shaped lower positioning groove 312, thereby forming a positioning through hole 30 through which the transmission link 2 passes via the U-shaped upper positioning groove 322 and the U-shaped lower positioning groove 312. When the sliding positioning seat is installed and fixed by inserting the fastener into the upper and lower mounting holes, the base and the buckle are fixed together at the same time.

[0017] Specific Implementation Example 2: As shown in the example Figures 2-6The difference between this specific implementation and Specific Embodiment 1 is that the lock base 5 and the crank lock 1 are installed at an angle α along the transverse direction. That is, as shown... Figure 5 As shown, the mounting plane of the lock base 5 and the mounting plane of the crank lock 1 form an angle α to accommodate situations where the crank lock and the door frame have an angular relationship, thereby broadening the application scenarios of the linkage lock system. Typically, the angle α between the lock base 5 and the crank lock 1 can be 15° to 60°. In this specific implementation, it is 45°.

[0018] Furthermore, the transmission link 2 is also a flat plate design, with the locking pin 4 positioned along the thickness direction of the transmission link 2. To achieve a simpler and more convenient angle arrangement between the lock seat 5 and the crank lock 1, the transmission link 2 has a locking pin mounting strip segment 21 formed by twisting it circumferentially at a predetermined angle. Correspondingly, the transmission link 2 has a twisted strip 22 connecting the transmission link body and the locking pin mounting strip segment 21. The transmission link 2 has several locking pin mounting strip segments 21 that correspond one-to-one with several point locking mechanisms, and the locking pin 4 is mounted on the locking pin mounting strip segment 21. With this structure, the angle arrangement of the transmission link is simpler and more convenient, and the overall structure of the lock is simpler and more compact.

Claims

1. A linkage-type crank lock system, comprising a crank lock, a transmission linkage, and a plurality of locking mechanisms, wherein the locking mechanisms are arranged along the length of the transmission linkage and are driven and engaged with the crank lock via the transmission linkage, characterized in that: The transmission link is equipped with several sliding positioning seats to guide the linear sliding of the transmission link. The locking mechanism includes a locking pin and a locking seat. The locking pin is fixed to the transmission link and driven by the transmission link to lock and unlock with the locking seat. The locking pin extends laterally along the transmission link and has lock heads protruding from the transmission link at both ends. The locking seat includes a mounting base plate with two lock box parts arranged side by side laterally on the mounting base plate. There is a gap between the two lock box parts. The lock box part has a locking groove cavity with a lateral opening leading to the gap and a locking entrance corresponding to the sliding direction of the transmission link and allowing the lock head to enter and exit the locking groove cavity. The transmission link passes through the gap, and the lock head engages with the locking groove cavity for locking and unlocking.

2. The linkage-type crank lock system according to claim 1, characterized in that: The lock base and the crank lock are installed at an angle to each other in the transverse direction.

3. The linkage screwdriver lock system of claim 2, wherein: The transmission link is a flat plate, and the locking pin is set along the thickness direction of the transmission link. The transmission link has a locking pin mounting plate segment formed after being twisted at a predetermined angle in the circumferential direction. The transmission link has a number of locking pin mounting plate segments that correspond one-to-one with a number of point locking mechanisms, and the locking pin is installed on the locking pin mounting plate segment.

4. The linkage-type crank lock system according to claim 2, characterized in that: The angle between the lock base and the crank lock is 15°~60°.

5. The linkage screwdriver lock system of claim 1, wherein: The sliding positioning seat includes a base and a buckle. The base includes a lower mounting plate with a lower mounting hole and a U-shaped lower positioning groove on one side. The buckle includes an upper mounting plate with an upper mounting hole and a U-shaped upper positioning groove on one side. The buckle is fastened to the base, with the upper mounting plate overlapping the lower mounting plate. The upper mounting hole and the lower mounting hole are correspondingly fitted. The open end of the U-shaped upper positioning groove of the buckle is assembled with the open end of the U-shaped lower positioning groove, thereby forming a positioning through hole through which the transmission connecting rod passes by.

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