Plane lock with self-locking function

Abstract

The utility model relates to the technical field of plane locks, in particular to a plane lock with a self-locking function, which comprises a casing and a cover plate, the casing is fixedly connected with the cover plate through a bolt, a self-locking device is arranged on the inner wall of the cover plate and comprises a rotating shaft, the outer wall of the rotating shaft is rotatably connected with the cover plate, and the cover plate is fixedly connected with the casing. The outer wall of the rotating shaft is fixedly connected with a first connecting block, the outer wall of the first connecting block is rotationally connected with a connecting rod, the inner wall of the connecting rod is rotationally connected with a second connecting block, the outer wall of the second connecting block is fixedly connected with a rotating cover, and the outer wall of the rotating cover is rotationally connected with a mounting cylinder. The handle is put back to the shell, the clamping block on the handle can be separated from the clamping groove in the rotating shaft, the spring piece can automatically drive the rotating cover to rotate, the rotating cover drives the connecting rod on the second connecting block to move, the connecting rod drives the rotating shaft on the first connecting block to rotate, the steel bolt on the rotating shaft rotates to restore the original position, and the self-function of the plane lock is achieved. And the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of plane locks, in particular to a plane lock with a self-locking function. Background Art

[0002] Flat locks are commonly used on doors of tool cabinets, electrical cabinets, etc. They can also be installed on door panels of screen cabinets. They mainly include a base, a lock bolt assembly and an operating handle. The operating handle drives the lock bolt to unlock and lock.

[0003] For example, a flat lock with the authorization announcement number "CN216517416U" solves the problem of low installation efficiency of existing flat locks. The rotation of the lock core drives the rotation of the toggle shaft, thereby driving the lock tongue to move backward and disengage from the inner groove. At the same time, the double positioning beads enter the unlocking recess of the lock tongue to position the lock tongue, completing the preliminary process and action of unlocking, and then pressing the button. The handle assembly will automatically bounce up to a position of about degrees under the action of the handle torsion spring, and the handle body can be rotated under the drive of artificial external force. Considering the need to repeatedly rotate the handle body manually to operate and realize the locking of the flat lock, the self-locking function cannot be realized, resulting in inconvenience in use. Utility Model Content

[0004] The utility model aims to solve the problem that the existing plane lock needs to be operated by repeatedly rotating the handle body manually to lock the plane lock, and cannot realize the self-locking function, resulting in inconvenience in use, and proposes a plane lock with a self-locking function.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plane lock with a self-locking function, comprising a shell and a cover plate, the shell being fixedly connected to the cover plate by bolts, the inner wall of the cover plate being provided with a self-locking device, the self-locking device comprising a rotating shaft, the outer wall of the rotating shaft being rotatably connected to the cover plate, the outer wall of the rotating shaft being fixedly connected to a first connecting block, the outer wall of the first connecting block being rotatably connected to a connecting rod, the inner wall of the connecting rod being rotatably connected to a second connecting block, the outer wall of the second connecting block being fixedly connected to a rotating cover, the outer wall of the rotating cover being rotatably connected to a mounting tube, the inner wall of the mounting tube being fixedly connected to a spring sheet, and the end of the spring sheet being fixedly connected to the rotating cover.

[0006] Preferably, a connecting device is provided on the outer wall of the rotating shaft, and the connecting device includes a connecting piece, the outer wall of the connecting piece is movably connected to the rotating shaft, the outer wall of the connecting piece is rotatably connected to the handle, and a clamping block is installed on the outer wall of the handle.

[0007] Preferably, a lock core is installed on the inner wall of the handle, and a lock plate is installed on the end of the lock core.

[0008] Preferably, a locking tongue is installed on the inner wall of the housing. The interior of the housing is fixedly connected to a spring. The outer wall of the spring is fixedly connected to a pressing piece. The outer wall of the pressing piece is movably connected to a button. The outer wall of the button is fixedly connected to a rubber limiting block. The inner wall of the button is slidably connected to a straight rod. The end of the straight rod is fixedly connected to the housing.

[0009] Preferably, the rotating shaft is fixedly connected to the steel bolt through a bolt, and a card slot is installed on the surface of the rotating shaft.

[0010] Preferably, the outer wall of the housing is fixedly connected to a mounting block.

[0011] A planar lock with a self-locking function proposed by the present utility model has the beneficial effect that when the handle is placed back into the housing, the clamping block on the handle will separate from the card slot on the rotating shaft, and the spring piece will automatically drive the rotating cover to rotate. The rotating cover drives the connecting rod on the second connecting block to move, and the connecting rod drives the rotating shaft on the first connecting block to rotate, causing the steel bolt on the rotating shaft to rotate back to its original position, realizing the self-locking function of the planar lock and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 the front view sectional structural diagram in

[0014] Figure 3 is Figure 1 the side view sectional structural diagram in

[0015] Figure 4 is Figure 2 the enlarged structural diagram at A in

[0016] Figure 5 is Figure 2 the enlarged structural diagram at B in

[0017] In the figure: 1. Housing, 2. Cover plate, 3. Self-locking device, 301. Rotating shaft, 302. First connecting block, 303. Connecting rod, 304. Second connecting block, 305. Rotating cover, 306. Installation cylinder, 307. Spring piece, 4. Connecting device, 401. Connecting piece, 402. Handle, 403. Clamping block, 5. Lock core, 6. Lock piece, 7. Locking tongue, 8. Spring, 9. Pressing piece, 10. Button, 11. Rubber limiting block, 12. Straight rod, 13. Steel bolt, 14. Card slot, 15. Mounting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-5 , the present utility model provides a technical solution: a planar lock with a self-locking function, including a housing 1 and a cover plate 2. The housing 1 is fixedly connected to the cover plate 2 by bolts. A self-locking device 3 is provided on the inner wall of the cover plate 2. Through the power transmitted by the spring piece 307 to the connecting rod 302, the rotating cover 305 can automatically rotate to achieve the self-locking effect. The self-locking device 3 includes a rotating shaft 301. The outer wall of the rotating shaft 301 is rotatably connected to the cover plate 1. The outer wall of the rotating shaft 301 is fixedly connected to the first connecting block 302. The outer wall of the first connecting block 302 is rotatably connected to the connecting rod 303. The inner wall of the connecting rod 303 is rotatably connected to the second connecting block 304. The outer wall of the second connecting block 304 is fixedly connected to the rotating cover 305. The outer wall of the rotating cover 305 is rotatably connected to the mounting cylinder 306. The inner wall of the mounting cylinder 306 is fixedly connected to the spring piece 307. The end of the spring piece 307 is fixedly connected to the rotating cover 305;

[0020] Put the handle 402 back into the housing 1. The block 403 on the handle 402 will separate from the slot 14 on the rotating shaft 301, and the spring piece 307 will automatically drive the rotating cover 305 to rotate. The rotating cover 305 drives the connecting rod 303 on the second connecting block 304 to move. The connecting rod 303 drives the rotating shaft 301 on the first connecting block 302 to rotate, so that the bolt 13 on the rotating shaft 301 rotates back to its original position, realizing the self-locking function of the planar lock, which is more convenient to use.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 4 , a connecting device 4 is provided on the outer wall of the rotating shaft 301. Through the connection of the connecting member 401 to the rotating shaft 301, the handle 402 can drive the rotating shaft 301. The connecting device 4 includes a connecting member 401. The outer wall of the connecting member 401 is movably connected to the rotating shaft 301. The outer wall of the connecting member 401 is rotatably connected to the handle 402. A block 403 is installed on the outer wall of the handle 402.

[0022] Please refer to Figure 1 and Figure 2 , a lock core 5 is installed on the inner wall of the handle 402. A lock piece 6 is installed at the end of the lock core 5. A lock tongue 7 is installed on the inner wall of the housing 1. The interior of the housing 1 is fixedly connected to a spring 8. The outer wall of the spring 8 is fixedly connected to a pressing piece 9. The outer wall of the pressing piece 9 is movably connected to a button 10. The outer wall of the button 10 is fixedly connected to a rubber limit block 11. The inner wall of the button 10 is slidably connected to a straight rod 12. The end of the straight rod 12 is fixedly connected to the housing 1.

[0023] Please refer toFigure 1 and Figure 2 The rotating shaft 301 is fixedly connected to the steel bolt 13 through bolts. A clamping groove 14 is installed on the surface of the rotating shaft 301, and the outer wall of the housing 1 is fixedly connected to the mounting block 15.

[0024] Working principle:

[0025] First, insert the matching key into the lock core 5. The lock core drives the lock piece 6 to bounce, separating the lock piece 6 from the lock tongue 7 on the housing 1. Manually press the button 10. The button 10 drives the rubber limit block 11 to move downward, separating the rubber limit block 11 from the handle 402. At this time, after pulling out the handle 402, and the button 11 is squeezed by the pressing piece 9 and the spring 8, the button 11 returns to its original position;

[0026] Push the handle 402 upward until the block 403 on the outer wall of the handle 402 is inserted into the clamping groove 14 on the rotating shaft 301. Manually rotate the handle 402. The handle 402 drives the rotating shaft 301 to rotate under the cooperation of the block 403 and the clamping groove 14. The rotating shaft 301 drives the steel bolt 13 to rotate, opening the door of the device.

[0027] When pushing the door back to its original position, just put the handle 402 back into the housing 1. The spring piece 307 drives the rotating cover 305 to rotate. The rotating cover 305 drives the connecting rod 303 on the second connecting block 304 to move. The connecting rod 303 drives the rotating shaft 301 on the first connecting block 302 to rotate, returning the steel bolt 13 on the rotating shaft 301 to its original position, realizing the locked state of the door. Finally, lock the lock piece 6 and the lock tongue 7 again with the key, making it impossible to pull out the handle 402.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A planar lock with a self-locking function, comprising a housing (1) and a cover plate (2), wherein the housing (1) is fixedly connected to the cover plate (2) by bolts, and characterized in that: The inner wall of the cover plate (2) is provided with a self-locking device (3), the self-locking device (3) comprising a rotating shaft (301), the outer wall of the rotating shaft (301) being rotatably connected to the cover plate (1), the outer wall of the rotating shaft (301) being fixedly connected to the first connecting block (302), the outer wall of the first connecting block (302) being rotatably connected to the connecting rod (303), the inner wall of the connecting rod (303) being rotatably connected to the second connecting block (304), the outer wall of the second connecting block (304) being fixedly connected to the rotating cover (305), the outer wall of the rotating cover (305) being rotatably connected to the mounting cylinder (306), the inner wall of the mounting cylinder (306) being fixedly connected to a spring sheet (307), and the end of the spring sheet (307) being fixedly connected to the rotating cover (305).

2. A plane lock with self-locking function according to claim 1, characterized in that: The outer wall of the rotating shaft (301) is provided with a connecting device (4), the connecting device (4) comprises a connecting piece (401), the outer wall of the connecting piece (401) is movably connected to the rotating shaft (301), the outer wall of the connecting piece (401) is rotatably connected to the handle (402), and the outer wall of the handle (402) is installed with a clamping block (403).

3. A plane lock with self-locking function according to claim 2, characterized in that: A lock core (5) is mounted on the inner wall of the handle (402), and a lock plate (6) is mounted on the end of the lock core (5).

4. A plane lock with self-locking function according to claim 1, characterized in that: A locking tongue (7) is mounted on the inner wall of the housing (1); the interior of the housing (1) is fixedly connected to a spring (8); the outer wall of the spring (8) is fixedly connected to a pressing plate (9); the outer wall of the pressing plate (9) is movably connected to a button (10); the outer wall of the button (10) is fixedly connected to a rubber stopper (11); the inner wall of the button (10) is slidably connected to a straight rod (12); and the end of the straight rod (12) is fixedly connected to the housing (1).

5. A plane lock with self-locking function according to claim 1, characterized in that: The rotating shaft (301) is fixedly connected to the steel bolt (13) via bolts, and a clamping groove (14) is installed on the surface of the rotating shaft (301).

6. A plane lock with self-locking function according to claim 1, characterized in that: The outer wall of the housing (1) is fixedly connected to the mounting block (15).

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