Linkage cabinet lock

Abstract

The utility model relates to a connecting rod cabinet lock, aim at solving the higher production cost of the prior art similar product, production assembly is more inconvenient, especially the technical problem that the component adopts the less stamping bending forming of plate piece, its main point is that the handle of the connecting rod cabinet lock is arranged in the handle groove on the top of the base, one end of the handle bottom is fixedly provided with a support, one end of the support is connected with one end of the sliding block in the sliding block groove on the base bottom through the first sliding block on one end of the handle groove, the connecting rod two ends in the handle groove of the base are connected with the middle of the support and the hinge seat in the handle groove respectively, the second sliding hole at the handle groove on the other end of the base is provided with a sliding hook, the sliding hook is fixed on the sliding plate on the other end of the base bottom, the sliding plate is fixed on the base bottom through the fourth sliding hole screw on both ends, the other end of the handle bottom is provided with a lock shaft, the lock shaft is buckled and fixed on the hook part on one side of the sliding hook, one end of the sliding plate is abutted with the shift fork through the spring, the inner rotating shaft in the lock cylinder on the plane side of the base top is connected with the shift fork on the base bottom.

Description

Technical Field

[0001] This utility model relates to an industrial linkage lock, specifically a linkage cabinet lock. Background Technology

[0002] An industrial linkage lock refers to a lock used in industries such as telecommunications, power, and automation control manufacturing for metal cabinet doors. It uses linkages (top and bottom rods) to lock metal panel cabinet frames, or similar door or box frames. It includes a shaped linkage, such as a flat rod, parallel to the door edge and substantially vertical on the door or frame; at least one positioning element mounted on the door or frame to connect the linkage when the door is locked in the closed position; and an operating device for the linkage connected to the door panel. Some existing linkage locks include a handle, slider, linkage, and bracket, such as application number 202022413991.X disclosed in Chinese patent literature, authorized on August 27, 2021, with the utility model name "Linkage Industrial Cabinet Lock". However, the production cost of the above products and similar products is relatively high, and production and assembly are inconvenient, especially since the use of sheet metal stamping and bending forming for components is relatively rare. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the purpose of this utility model is to provide a linkage cabinet lock that addresses the technical problems of high production costs, inconvenient production and assembly, and, in particular, the limited use of sheet metal stamping and bending forming for components in existing similar products. This objective is achieved through the following technical solution.

[0004] A linkage cabinet lock has a handle located in a handle groove at the top of a base. A bracket is fixedly mounted on one end of the bottom of the handle. A first hinge seat protrudes from the handle groove of the base. A second hinge seat protrudes upward from the top of one end of a slider in a slider groove at the bottom of the base. A mounting post is provided at the bottom of the slider. The second hinge seat of the slider extends out of a first sliding hole at the handle groove at one end of the base. Simultaneously, the second hinge seat of the slider is hinged and fixed to one end of the bracket at the bottom of the handle by a third pin. One end of a connecting rod in a connecting rod groove at the bottom of the bracket is hinged and fixed to a third sliding hole in the middle of the bracket by a first pin. The other end of the connecting rod in a connecting rod groove at the bottom of the bracket is hinged and fixed to the first hinge seat of the base by a second pin. The key structural design features a sliding hook at the second sliding hole in the handle slot at the other end of the base. The sliding hook is fixed to a sliding plate at the other end of the base bottom. The sliding plate is fixed to the bottom of the base by screws at the fourth sliding holes at both ends. A locking shaft is located at the other end of the handle bottom. The locking shaft engages with the hook on one side of the sliding hook. Simultaneously, one end of the sliding plate abuts against a shift fork via a spring. A rotating shaft inside the lock cylinder on one side of the top plane of the base connects to the shift fork at the bottom of the base. When the lock cylinder drives the shift fork to rotate via the rotating shaft, the shift fork drives the sliding hook to move via the sliding plate. The hook of the sliding hook disengages from the locking shaft of the handle, and the handle slides within the slider slot at the bottom of the base via a slider. The handle then ejects from the handle slot of the base via a first torsion spring, a second torsion spring, and a connecting rod. The above is a specific structural embodiment of the handle linked with the locking shaft, sliding hook, sliding plate, and shift fork. This design has fewer components and lower cost. Furthermore, some components are manufactured using a lightweight modular process, facilitating production and processing, and improving service life.

[0005] The shift fork abuts against one end of the slide plate via a triangular opening edge on one side, which is then bent into a triangular shape. A spring is encapsulated within a spring groove at the bottom of the base by the slide plate. One end of the spring abuts against the inner wall of the spring groove, and the other end abuts against a protruding spring post at the top of the slide plate. The above describes a specific structural embodiment of the shift fork and slide plate.

[0006] The base has a raised rib between the first hinge seat and the second sliding hole in the handle groove, which is inserted into the rib groove at the bottom of the handle. Thus, when the handle is retracted into the base, it is wedged and fixed to the base.

[0007] The base has an opening on one side of the rib, which limits the sliding of the hook to within the opening. This further stabilizes the movement of the hook.

[0008] The lock cylinder's rotating shaft is a lock cylinder shaft. The top of the lock cylinder shaft has a centrally protruding unlocking head. The bottom of the lock cylinder shaft connects to the square hole of the shift fork via a square head. The lock cylinder shaft is fixedly installed in the lock cylinder hole of the base via a lock cylinder sleeve of outer diameter. The above is a specific structural embodiment of the lock cylinder.

[0009] The first hinge seat of the base is symmetrically arranged on both sides and is correspondingly wedged into the grooves on both sides of the bottom of the bracket.

[0010] The bracket, connecting rod, sliding plate, shift fork, and sliding hook are all plate parts formed by stamping and bending. The two sides of the plate parts of the bracket, connecting rod, and sliding plate are side plates formed by stamping and bending through the middle. This reduces the production cost of the corresponding components.

[0011] The top of one side of the lock cylinder of the base is a plane parallel to the bottom, and the top plane of the base on the other symmetrical side of the lock cylinder is a slope. The handle groove is located in the middle between the two ends of the top of the base. The above describes the specific structural shape of the base and the handle.

[0012] The handle groove of the base has two sides that slope inwards respectively, and four chamfers are provided on each side of the handle groove. The bottom two sides of the handle fit against the handle groove of the base, and the top and side planes of the handle are flush with the circumference of the base. This further facilitates the wedging of the handle and the base and the overall shaping.

[0013] This utility model has a reasonable structural design, is easy to install, produce and use, has good stability, and its components are easy to manufacture and process, resulting in low production costs. It is suitable for use as a linkage lock for metal cabinet doors and for structural improvements of similar products. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the base and the bottom of the handle is shown, with the handle omitted from the diagram.

[0016] Figure 3 yes Figure 1 A schematic diagram of the bottom structure.

[0017] Figure 4 yes Figure 1 The diagram shows a cross-sectional view, with the dotted line indicating the handle's open position.

[0018] Figure 5 yes Figure 1 A schematic diagram of the explosion structure.

[0019] Attached figures and their names: 1. Base, 101. First hinge seat, 102. First sliding hole, 103. Second sliding hole, 104. Rib, 2. Lock cylinder, 3. Handle, 4. Bracket, 401. Third sliding hole, 5. Connecting rod, 6. First pin, 7. Second pin, 8. First torsion spring, 9. Third pin, 10. Slider, 1001. Second hinge seat, 11. Second torsion spring, 12. Slide plate, 1201. Fourth sliding hole, 13. Spring, 14. Fork, 15. Lock cylinder sleeve, 16. Lock cylinder shaft, 17. Sliding hook, 18. Lock shaft. Implementation

[0020] The structure of this utility model will now be further described with reference to the accompanying drawings. For example... Figures 1-5 As shown, the handle 3 of the linkage cabinet lock is located in the handle groove at the top of the base 1. A bracket 4 is fixedly provided at one end of the bottom of the handle. A first hinge seat 101 with a protrusion is provided in the handle groove of the base. A second hinge seat 1001 with an upward protrusion is provided at the top of one end of the slider 10 in the slider groove at the bottom of the base. A mounting post is provided at the bottom of the slider. The second hinge seat of the slider extends out of the first sliding hole 102 at the handle groove at one end of the base. At the same time, the second hinge seat of the slider is hinged and fixed to one end of the bracket at the bottom of the handle by a third pin 9. One end of the connecting rod 5 in the connecting rod groove at the bottom of the bracket is hinged and fixed to the third sliding hole 401 in the middle of the bracket by a first pin 6. The other end of the connecting rod in the connecting rod groove at the bottom of the bracket is hinged and fixed to the first hinge seat of the base by a second pin 7. A sliding hook 17 is provided in the second sliding hole 103 at the handle groove at the other end of the base. The sliding hook is fixed to the sliding plate 12 at the other end of the base bottom. The sliding plate is fixed to the bottom of the base by screws at the fourth sliding holes 1201 at both ends. A locking shaft 18 is provided at the other end of the handle bottom. The locking shaft is fastened and fixed to the hook part on one side of the sliding hook. At the same time, one end of the sliding plate abuts against the shift fork 14 through the spring 13. The rotating shaft in the lock cylinder 2 on one side of the top plane of the base is connected to the shift fork at the bottom of the base. The shift fork abuts against the end of the sliding plate through the edge of the triangular opening on one side, which is punched and bent into a triangular shape. The spring is encapsulated and limited in the spring groove at the bottom of the base by the sliding plate. One end of the spring abuts against the inner wall of the spring groove, and the other end of the spring abuts against the spring post protruding at the top of the sliding plate. When the lock cylinder drives the shift fork to rotate through the rotating shaft, the shift fork drives the sliding hook to move through the sliding plate. The hook part of the sliding hook disengages from the locking shaft of the handle. The handle slides in the slider groove at the bottom of the base through the slider. The handle pops out of the handle groove of the base through the first torsion spring, the second torsion spring, and the connecting rod.

[0021] The base has a raised rib 104 between the first hinge seat and the second sliding hole in the handle groove, which is inserted into the rib groove at the bottom of the handle. The rib on one side of the base's sliding hook has an opening, allowing the sliding hook to slide within the opening. The lock cylinder's pivot is a lock cylinder shaft 16, with a raised unlocking head at the top. The bottom of the lock cylinder shaft connects to the square hole of the shift fork 14 via a square head. The lock cylinder shaft is fixedly installed in the lock cylinder hole of the base via a lock cylinder sleeve 15 with an outer diameter. The first hinge seat of the base is symmetrically arranged on both sides and correspondingly wedged into the grooves on both sides of the bottom of the bracket.

[0022] The aforementioned bracket, connecting rod, sliding plate, shift fork, and sliding hook are all stamped and bent sheet metal parts. The two sides of the bracket, connecting rod, and sliding plate are side plates formed by stamping and bending in the middle. The top of one side of the lock cylinder of the base is a plane parallel to its bottom, while the top plane of the base on the other symmetrical side of the lock cylinder is an inclined plane. The handle groove is located in the middle between the two ends of the top of the base. The two sides of the handle groove in the base slope inwards relative to each other, and each side of the handle groove has four symmetrically arranged chamfers. The bottom two sides of the handle fit against the two sides of the handle groove in the base, and the top and side planes of the handle are flush with and wedge into the circumference of the base.

[0023] The base of this linkage cabinet lock has a bottom slider that is mounted on the cabinet door and reciprocates. The mounting post at the bottom of the slider connects to the corresponding bolt. The handle of this industrial cabinet lock has a bracket at the bottom connected to the slider via a connecting rod, which is also connected to the base. Unlocking and rotating the lock cylinder causes the fork to rotate, which in turn moves the sliding hook of the slide plate. This disengages the handle's locking shaft from the hook, allowing the handle to pop out of the base. The handle, along with the bracket and connecting rod, moves the slider, thus unlocking the bolt. Pressing the handle resets it and engages with the base, locking the handle's locking shaft and hook, resetting the slider, and locking the bolt.

Claims

1. A linkage cabinet lock, wherein the handle (3) of the linkage cabinet lock is disposed in the handle groove at the top of the base (1), and a bracket (4) is fixedly provided at one end of the bottom of the handle. A first hinge seat (101) with a protrusion is provided in the handle groove of the base. A second hinge seat (1001) with an upward protrusion is provided at the top of one end of the slider (10) in the slider groove at the bottom of the base. A mounting post is provided at the bottom of the slider. The second hinge seat of the slider extends out of the first sliding hole (102) at the handle groove at one end of the base. At the same time, the second hinge seat of the slider is hinged and fixed to one end of the bracket at the bottom of the handle by a third pin (9). One end of the connecting rod (5) in the connecting groove at the bottom of the bracket is hinged and fixed to the third sliding hole (401) in the middle of the bracket by a first pin (6). The other end of the connecting rod in the connecting groove at the bottom of the bracket is hinged and fixed to the first hinge seat of the base by a second pin (7). The base (1) has a sliding hook (17) in the second sliding hole (103) at the handle groove at the other end. The sliding hook is fixed to the sliding plate (12) at the other end of the base bottom. The sliding plate is fixed to the bottom of the base by screws at the fourth sliding holes (1201) at both ends. The other end of the bottom of the handle (3) has a locking shaft (18). The locking shaft is fastened to the hook on one side of the sliding hook. At the same time, one end of the sliding plate abuts against the shift fork (14) through the spring (13). The rotating shaft inside the lock core (2) on one side of the top plane of the base is connected to the shift fork at the bottom of the base. When the lock core drives the shift fork to rotate through the rotating shaft, the shift fork drives the sliding hook to move through the sliding plate. The hook of the sliding hook is disengaged from the locking shaft of the handle. The handle slides in the slider groove at the bottom of the base through the slider. The handle pops out of the handle groove of the base through the first torsion spring, the second torsion spring, and the connecting rod.

2. The linkage cabinet lock according to claim 1, characterized in that... The fork (14) is bent and abutted against one end of the slide plate (12) by a triangular opening edge on one side. The spring (13) is encapsulated in the spring groove at the bottom of the base (1) by the slide plate. One end of the spring abuts against the inner wall of the spring groove, and the other end of the spring abuts against the spring post protruding at the top of the slide plate.

3. The linkage cabinet lock according to claim 1, characterized in that... The base (1) has a raised rib (104) in the middle between the first hinge seat (101) and the second sliding hole (103) in the handle groove, and the rib is inserted into the rib groove at the bottom of the handle (3).

4. The linkage cabinet lock according to claim 3, characterized in that... The base (1) has an opening on one side of the rib (104) of the sliding hook (17), and the sliding hook is limited to sliding within the opening of the rib.

5. The linkage cabinet lock according to claim 1, characterized in that... The rotating shaft of the lock cylinder (2) is the lock cylinder shaft (16). The top of the lock cylinder shaft is provided with a centrally protruding unlocking head. The bottom of the lock cylinder shaft is connected to the square hole of the shift fork (14) through a square head. The lock cylinder shaft of the lock cylinder is fixedly installed in the lock cylinder hole of the base (1) through the lock cylinder sleeve (15) of the outer diameter.

6. The linkage cabinet lock according to claim 1, characterized in that... The first hinge seat (101) of the base (1) is symmetrically arranged on both sides and is correspondingly wedged into the grooves on both sides of the bottom of the bracket (4).

7. The linkage cabinet lock according to claim 1, characterized in that... The bracket (4), connecting rod (5), sliding plate (12), shift fork (14), and sliding hook (17) are all stamped and bent plates, and the two sides of the bracket, connecting rod, and sliding plate are side plates formed by stamping and bending in the middle.

8. The linkage cabinet lock according to claim 1, characterized in that... The top of one side of the lock cylinder (2) of the base (1) is a plane parallel to the bottom, and the top plane of the base on the other side of the lock cylinder is an inclined plane. The handle groove is located in the middle between the two ends of the top of the base.

9. The linkage cabinet lock according to claim 1, characterized in that... The two sides of the handle groove of the base (1) are inclined inward respectively. The two sides of the handle groove are provided with four chamfers that are symmetrically arranged in pairs. The bottom two sides of the handle (3) are attached to the two sides of the handle groove of the base. The top plane and the two sides of the handle are flush with the periphery of the base.

Images