Flat plate lock

Abstract

The utility model discloses a flat plate lock. The flat plate lock comprises a panel and a spring bolt, an inner pressing plate is arranged on the inner side of the panel in a swinging mode, and an outer pressing plate is arranged on the outer side of the panel in a swinging mode. The door lock panel is flush with the panel in a natural state, the problem that clothes are easily hooked due to the fact that a traditional door lock handle is arranged outside the panel in a protruding mode is well solved, collision between people and the door handle can be avoided, potential safety hazards are eliminated, the door lock panel is integrally embedded in the door leaf, and the appearance of the door lock is simpler and more attractive. The spring bolt comprises a shell and a spring bolt body arranged on the shell in a sliding mode, an unlocking piece is rotationally arranged in the shell, one end of the unlocking piece is matched with the spring bolt body, and the other end of the unlocking piece stretches into the panel to be matched with the inner pressing plate and the outer pressing plate. When the inner pressing plate and the outer pressing plate are pressed downwards, the inner pressing plate and the outer pressing plate can drive the unlocking piece to rotate, and the other end of the unlocking piece drives the spring bolt body to slide into the shell. Compared with a traditional door lock opening mode that a handle needs to be held by hand and rotated downwards, unlocking operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the field of door locks, and more specifically, to a flat lock. Background Art

[0002] At present, most door locks on the market are unlocked by pressing down the door handle inside and outside the door to drive the lock tongue to retract into the lock body to open the door lock;

[0003] For example, the Chinese utility model patent with the announcement number CN216553384U discloses a new type of ecological door lock, including an inner handle seat fixed to the inner door panel, an outer handle seat fixed to the outer door panel, an inner handle, an outer handle, and a square shaft whose two ends are respectively connected to the inner handle and the outer handle, and the inner handle and the outer handle are linked; the inner handle is rotatably arranged on the inner handle seat, and the outer handle is rotatably arranged on the outer handle seat;

[0004] The inner door handle and the outer door handle are both protruding outside the door panel, and the appearance of the existing handle door lock is not beautiful; at the same time, the door handle makes it easy for people to bump into the inner and outer handles, or even hook clothes, which brings potential safety hazards. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a flat lock.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A flat plate lock comprises a panel on one side and a lock tongue on the other side; an inner pressure plate is swingably provided on the inner side of the panel, and an outer pressure plate is swingably provided on the outer side of the panel;

[0008] The lock tongue comprises a shell and a lock tongue body slidably arranged on the shell, an unlocking piece is rotatably arranged in the shell, one end of the unlocking piece is matched with the lock tongue body, and the other end extends into the panel to match the inner pressure plate and the outer pressure plate;

[0009] Press down the inner pressure plate\outer pressure plate, the inner pressure plate\outer pressure plate will drive the unlocking piece to rotate, and the other end of the unlocking piece drives the lock tongue body to slide into the shell.

[0010] The utility model is further provided with: a self-attracting magnet is built into the front end of the lock tongue body, and a tension spring is connected to the rear end thereof to prevent the lock tongue body from sliding out of the housing by itself.

[0011] The utility model is further configured as follows: the unlocking member includes a driving arm and an unlocking arm, one end of the driving arm is connected to the unlocking arm, and the other end extends into the panel, and the unlocking arm is driven by the inner pressure plate or the outer pressure plate to push the lock tongue body to slide.

[0012] The utility model is further configured that: the unlocking piece is in a T-shape.

[0013] The utility model is further configured that: the inner pressure plate and the outer pressure plate are both provided with a return torsion spring, one end of the return torsion spring abuts against the panel, and the other end abuts against the inner pressure plate / the outer pressure plate.

[0014] The utility model is further provided with: a counter-locking piece is arranged on the outer side of the panel, one end of the counter-locking piece is rotatably arranged in the panel, and the other end cooperates with the locking groove of the outer pressure plate to lock the outer pressure plate.

[0015] The utility model is further arranged that: one side of the anti-locking member is connected to the anti-locking knob on the inner side of the panel, and the other side is connected to the lock core on the outer side of the panel.

[0016] The utility model is further configured as follows: a positioning ball is arranged on the anti-locking member, and an anti-locking positioning hole and an unlocking positioning hole adapted to the positioning ball are arranged on the panel;

[0017] When the anti-locking piece is in the anti-locking position, the positioning ball cooperates with the anti-locking positioning hole to lock the anti-locking piece in the anti-locking position; when the anti-locking piece is in the unlocking position, the positioning ball cooperates with the unlocking positioning hole to lock the anti-locking piece in the unlocking position.

[0018] The beneficial effects of the utility model are as follows: the inner pressure plate and the outer pressure plate of the flat lock are swingably arranged on the inner and outer sides of the panel respectively, and are flush with the panel in a natural state; the problem that the traditional door lock handle is protruding outside the panel and is easy to hook clothes is well solved, and at the same time it can avoid people from colliding with the door handle and eliminate safety hazards, and the door lock panel is integrally embedded in the door leaf, making the appearance of the door lock more simple and beautiful; when unlocking, only the inner pressure plate or the outer pressure plate needs to be pressed down to drive the unlocking member to drive the lock tongue body to retract into the shell to realize the unlocking of the door lock; compared with the traditional door lock that needs to hold the handle and turn the handle downward to open, the unlocking operation is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a flat lock of the utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of a flat lock of the utility model Figure 2 ;

[0021] Figure 3 A schematic diagram of the internal structure of a flat lock Figure 1 ;

[0022] Figure 4 A schematic diagram of the internal structure of a flat lock Figure 2 ;

[0023] Figure 5 It is a structural schematic diagram of a lock tongue of a flat lock;

[0024] Figure 6 A diagram showing the coordination between an outer pressure plate and a locking member of a flat lock;

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Panel; 11. Inner pressure plate; 12. Outer pressure plate; 121. Locking groove; 13. Anti-locking knob; 14. Lock core; 15. Anti-locking member; 151. Positioning ball; 18. Reset torsion spring; 2. Lock tongue; 21. Lock tongue body; 211. Tension spring; 22. Unlocking member; 221. Unlocking arm; 222. Driving arm; 23. Shell; 3. Anti-locking knob; 4. Lock core. DETAILED DESCRIPTION

[0026] Refer to the attached Figures 1 to 6 A flat plate lock of the utility model is further described in detail.

[0027] A flat lock, comprising a panel 1 on one side and a lock tongue 2 on the other side; an inner pressure plate 11 is swingably provided on the inner side of the panel 1, and an outer pressure plate 12 is swingably provided on the outer side thereof; wherein the inner pressure plate 11 and the outer pressure plate 12 are both provided in the mounting groove of the panel 1, so that the inner pressure plate 11 and the outer pressure plate 12 are flush with the outer surface of the panel 1 in a natural state;

[0028] The lock tongue 2 comprises a housing 23 and a lock tongue body 21 slidably arranged on the housing 23, an unlocking member 22 is rotatably arranged in the housing 23, a torsion spring is arranged on the unlocking member 22, one end of the unlocking member 22 is matched with the lock tongue body 21, and the other end extends into the panel 1 and is matched with the inner pressure plate 11 and the outer pressure plate 12;

[0029] Press down the upper end of the inner pressure plate 11\outer pressure plate 12, the upper end of the inner pressure plate 11\outer pressure plate 12 rotates downward, and presses down the unlocking member 22, which drives the unlocking member 22 to rotate, and the other end of the unlocking member 22 drives the lock tongue body 21 to slide into the housing 23; after unlocking is completed, the torsion spring on the unlocking member 22 drives the unlocking member 22 to rotate in the opposite direction to achieve reset;

[0030] The inner pressure plate 11 and the outer pressure plate 12 of the flat lock are swingably arranged on the inner and outer sides of the panel 1 respectively, and are flush with the panel 1 in a natural state; it well solves the problem that the handle of the traditional door lock is protruding outside the panel 1 and is easy to hook clothes, and at the same time can avoid people from colliding with the door handle, eliminating safety hazards, and the door lock panel 1 is integrally embedded in the door leaf, making the appearance of the door lock more simple and beautiful; when unlocking, it is only necessary to press down the inner pressure plate 11 or the outer pressure plate 12 to drive the unlocking member 22 to drive the lock tongue body 21 to retract into the shell 23 to unlock the door lock; compared with the traditional door lock that needs to hold the handle and turn the handle downward to open, the unlocking operation is simpler and more convenient.

[0031] The front end of the lock tongue body 21 is equipped with a self-attracting magnet, and the rear end is connected to a tension spring 211 which prevents the lock tongue body 21 from sliding out of the shell 23 by itself. When the door is closed, the self-attracting magnet cooperates with the magnet on the door frame buckle box to overcome the tension of the tension spring 211, and sucks the lock tongue body 21 out of the shell 23, so that the lock tongue body 21 is placed in the buckle box. In the non-closing state, the lock tongue body 21 will always be placed in the shell 23 under the tension of the tension spring 211.

[0032] The unlocking member 22 is T-shaped and includes a driving arm 222 and an unlocking arm 221. One end of the driving arm 222 is connected to the unlocking arm 221, and the other end extends into the panel 1. When driven by the inner pressure plate 11 or the outer pressure plate 12, the unlocking arm 221 pushes the lock tongue body 21 to slide.

[0033] A return torsion spring 18 is provided on the inner pressure plate 11 and the outer pressure plate 12, one end of the return torsion spring 18 rests on the panel 1, and the other end rests on the inner pressure plate 11 / outer pressure plate 12; after the inner pressure plate 11 or the outer pressure plate 12 is pressed down to unlock and release, the inner pressure plate 11 or the outer pressure plate 12 bounces upward under the action of the return torsion spring 18 to achieve automatic reset.

[0034] In order to achieve the reverse locking of the door lock, a reverse locking piece 15 is provided on the outer side of the panel 1, one end of the reverse locking piece 15 is rotatably provided in the panel 1, and the other end cooperates with the locking groove 121 of the outer pressure plate 12 to lock the outer pressure plate 12; one side of the reverse locking piece 15 is connected to the reverse locking knob 313 on the inner side of the panel 1, and the other side is connected to the lock core 414 on the outer side of the panel 1; when it is necessary to reverse lock the door lock, it is only necessary to rotate the reverse locking knob 313 or use a key to rotate the lock core 414 to drive the reverse locking piece 15 to rotate, so that one end of the reverse locking piece 15 is transferred into the locking groove 121 of the outer pressure plate 12, so that the outer pressure plate 12 cannot swing relative to the panel 1, that is, the person outside the door cannot press down the outer pressure plate 12, thereby achieving the reverse locking of the door lock.

[0035] The anti-locking member 15 is provided with a positioning ball 151, and the panel 1 is provided with an anti-locking positioning hole and an unlocking positioning hole matched with the positioning ball 151 (a compression spring is provided under the positioning ball 151, and the compression spring pushes the positioning ball 151 out so that a part of the positioning ball 151 is placed in the anti-locking positioning hole or the unlocking positioning hole); when the anti-locking member 15 is in the anti-locking position, the positioning ball 151 cooperates with the anti-locking positioning hole to lock the anti-locking member 15 in the anti-locking position; when the anti-locking member 15 is in the unlocking position, the positioning ball 151 cooperates with the unlocking positioning hole to lock the anti-locking member 15 in the unlocking position; the anti-locking member 15 is prevented from switching between the anti-locking position and the unlocking position by itself, thereby improving the stability of the door lock structure.

[0036] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A flat lock, comprising a panel on one side and a lock tongue on the other side; characterized in that: The inner side of the panel is swingably provided with an inner pressure plate, and the outer side of the panel is swingably provided with an outer pressure plate; The lock tongue comprises a shell and a lock tongue body slidably arranged on the shell, an unlocking piece is rotatably arranged in the shell, one end of the unlocking piece is matched with the lock tongue body, and the other end extends into the panel to match the inner pressure plate and the outer pressure plate; Press down the inner pressure plate\outer pressure plate, the inner pressure plate\outer pressure plate will drive the unlocking piece to rotate, and the other end of the unlocking piece drives the lock tongue body to slide into the shell.

2. A flat lock according to claim 1, characterized in that: The front end of the lock tongue body is provided with a self-attracting magnet, and the rear end thereof is connected with a tension spring which prevents the lock tongue body from sliding out of the housing by itself.

3. A flat lock according to claim 1 or 2, characterized in that: The unlocking member includes a driving arm and an unlocking arm. One end of the driving arm is connected to the unlocking arm, and the other end extends into the panel. The unlocking arm is driven by the inner pressure plate or the outer pressure plate to push the lock tongue body to slide.

4. A flat lock according to claim 3, characterized in that: The unlocking piece is in a T-shape.

5. A flat lock according to claim 1 or 2, characterized in that: The inner pressure plate and the outer pressure plate are both provided with a return torsion spring, one end of the return torsion spring abuts against the panel, and the other end abuts against the inner pressure plate / the outer pressure plate.

6. A flat lock according to claim 5, characterized in that: A counter-locking piece is arranged on the outer side of the panel, one end of the counter-locking piece is rotatably arranged in the panel, and the other end cooperates with the locking groove of the outer pressure plate to lock the outer pressure plate.

7. A flat lock according to claim 6, characterized in that: One side of the anti-locking piece is connected to the anti-locking knob on the inner side of the panel, and the other side is connected to the lock core on the outer side of the panel.

8. A flat lock according to claim 7, characterized in that: The anti-locking member is provided with a positioning ball, and the panel is provided with an anti-locking positioning hole and an unlocking positioning hole adapted to the positioning ball; When the anti-locking member is in the anti-locking position, the positioning ball cooperates with the anti-locking positioning hole to lock the anti-locking member in the anti-locking position; When the anti-locking member is in the unlocking position, the positioning ball cooperates with the unlocking positioning hole to lock the anti-locking member in the unlocking position.

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