Plane door lock

Abstract

The utility model discloses a plane door lock which comprises a lock body, door lock panels are arranged on the inner side and the outer side of the lock body, and the lock body comprises a lock shell and a lock tongue. A mounting groove is formed in the upper end of the door lock panel in a downwards-sunken mode, and a door handle is rotationally arranged in the mounting groove, so that the door handle is prevented from protruding out of the door lock panel, clothes are prevented from being hooked by the door handle, people are prevented from colliding with the door handle, potential safety hazards are eliminated, and the appearance of the door lock is simpler and more attractive. An unlocking transmission assembly is arranged on the lower end face of the door lock panel and comprises a sliding plate arranged in a sliding mode and an unlocking plate arranged in a rotating mode, a driving tooth part is arranged on the side, facing the unlocking plate, of the sliding plate, a driven tooth part matched with the driving tooth part is arranged at one end of the unlocking plate, and the other end of the unlocking plate is matched with a spring bolt. When the door handle is pulled outwards, the lower end of the door handle can push the sliding plate to slide, the sliding plate drives the unlocking plate to rotate, the spring bolt is driven to retract into the lock shell, and unlocking operation is simplified.

Description

Technical Field

[0001] The utility model relates to the field of door locks, and more specifically, to a plane door 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 and outer door handles are both protruding from the door panel, making it easy for people to bump into the inner and outer door handles, or even get their clothes caught, posing a safety hazard. Utility Model Content

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

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

[0007] A flat door lock, comprising a lock body, a door lock panel is arranged on the inner and outer sides of the lock body, the lock body comprises a lock shell and a lock tongue, the lock tongue is slidably arranged in the lock shell; the upper end of the door lock panel is recessed downwards and provided with a mounting groove, a door handle is rotatably arranged in the mounting groove, and the lower end surface of the door lock panel is provided with an unlocking transmission component for driving the lock tongue to retract into the lock shell;

[0008] The unlocking transmission assembly comprises a sliding plate arranged for sliding and an unlocking plate arranged for rotation, wherein the sliding plate is provided with a driving tooth portion on one side facing the unlocking plate, and one end of the unlocking plate is provided with a driven tooth portion matched with the driving tooth portion, and the other end is matched with the lock tongue;

[0009] The door handle is pulled, and the lower end of the door handle pushes the slide plate to slide, and the slide plate drives the unlocking plate to rotate, so as to drive the lock tongue to retract into the lock housing.

[0010] The utility model is further configured as follows: a guide groove is provided in the slide plate along its sliding direction; the lower end surface of the door lock panel is provided with at least one guide column adapted to the guide groove; the guide column extends downward and is placed in the guide groove, so that the slide plate slides under the guidance of the guide column.

[0011] The utility model is further configured as follows: a push support leg is provided at the lower end of the door handle, and a support portion is provided at one end of the slide plate protruding upward toward the push support leg;

[0012] When the door handle is pulled, the push legs rotate inwards and drive the slide plate to slide by pushing the abutment portion.

[0013] The utility model is further provided that: a matching piece matching with the unlocking plate is provided at the rear end of the lock tongue, and both ends of the matching piece are matched with the corresponding unlocking plate after passing through the lock shell.

[0014] The utility model is further provided that: a reverse locking assembly for reverse locking the lock tongue is arranged in the lock housing, the reverse locking assembly comprises a locking member arranged slidably and a pushing member arranged rotatably, a reverse locking pushing claw and an unlocking pushing claw are arranged at intervals on the edge of the pushing member, and a matching portion for matching with the reverse locking pushing claw and the unlocking pushing claw is arranged on the locking member;

[0015] When the push member rotates counterclockwise, the anti-locking push claw pushes the matching part to drive the locking member to slide upward, so that the locking member is placed behind the lock tongue to prevent the lock tongue from retracting into the lock housing; when the push member is rotated clockwise, the unlocking push claw pushes the matching part to drive the locking member to slide downward and staggered with the lock tongue, thereby releasing the lock of the lock tongue.

[0016] The utility model is further arranged that: one end of the pushing member is connected to the anti-locking knob on the door lock panel inside the door, and the other end is connected to the lock core on the door lock panel outside the door.

[0017] The beneficial effects of the utility model are as follows: the door handle of the flat door lock is rotatably arranged in the mounting groove concavely arranged on the door lock panel through the rotating shaft, which effectively prevents the door handle from protruding outside the door lock panel; it prevents the door handle from being hooked on clothes, can avoid people from colliding with the door handle, eliminates safety hazards, and makes the appearance of the door lock more simple and beautiful; when unlocking, it is only necessary to pull the door handle outward, and the lower end of the door handle will push the slide to slide, and the slide drives the unlocking plate to rotate to drive the lock tongue to retract into the lock shell, so as to open the door leaf; compared with the traditional door lock, which needs to press down the door handle to unlock, the flat door lock is unlocked by pushing and pulling, which makes the unlocking operation of the door lock more convenient and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a flat door lock of the utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a flat door lock of the utility model. Figure 2 ;

[0020] Figure 3A diagram showing the coordination between a door lock panel and a lock tongue of a flat door lock;

[0021] Figure 4 It is a schematic diagram of the bottom structure of a door lock panel of a flat door lock;

[0022] Figure 5 It is a schematic diagram of the front structure of a door lock panel of a flat door lock;

[0023] Figure 6 A diagram showing the coordination between a door handle and an unlocking transmission assembly of a flat door lock;

[0024] Figure 7 It is a schematic diagram of the structure of a door handle of a flat door lock;

[0025] Figure 8 It is a structural schematic diagram of a lock body of a flat door lock;

[0026] Explanation of the accompanying drawings: 1. lock body; 11. lock shell; 12. lock tongue; 121. matching piece; 13. anti-lock assembly; 131. locking piece; 1311. matching part; 132. pushing piece; 1321. anti-lock pushing claw; 1322. unlocking pushing claw; 2. door lock panel; 21. mounting groove; 22. door handle; 221. pushing foot; 23. unlocking transmission assembly; 231. slide plate; 2311. driving tooth part; 2312. guide groove; 2313. abutting part; 232. unlocking plate; 2321. driven tooth part; 24. guide column; 25. anti-lock knob; 26. lock core. DETAILED DESCRIPTION

[0027] See attached Figures 1 to 8 The utility model is further described in detail.

[0028] A flat door lock, comprising a lock body 1, a door lock panel 2 is arranged on the inner and outer sides of the lock body 1, the lock body 1 comprises a lock shell 11 and a lock tongue 12, the lock tongue 12 is slidably arranged in the lock shell 11; the upper end of the door lock panel 2 is recessed downwardly and provided with a mounting groove 21, a door handle 22 is rotatably arranged in the mounting groove 21, effectively preventing the door handle 22 from protruding outside the door lock panel 2, preventing the door handle 22 from hooking clothes, and preventing people from colliding with the door handle 22, eliminating safety hazards, and making the appearance of the door lock more simple and beautiful; the lower end surface of the door lock panel 2 is provided with an unlocking transmission component 23 for driving the lock tongue 12 to retract into the lock shell 11;

[0029] The unlocking transmission assembly 23 includes a sliding plate 231 and a rotatable unlocking plate 232, wherein the sliding plate 231 is provided with an active tooth portion 2311 on the side facing the unlocking plate 232, and one end of the unlocking plate 232 is provided with a driven tooth portion 2321 that matches the active tooth portion 2311, and the other end matches with the lock tongue 12; when unlocking, it is only necessary to pull the door handle 22 outward, and the lower end of the door handle 22 will push the sliding plate 231 to slide, and the sliding plate 231 drives the unlocking plate 232 to rotate, so as to drive the lock tongue 12 to retract into the lock shell 11, so as to open the door leaf; compared with the traditional door lock, which requires pressing down the door handle 22 to unlock, the planar door lock is unlocked by pushing and pulling, so that the unlocking operation of the door lock is more convenient and simple.

[0030] A guide groove 2312 is provided in the slide plate 231 along its sliding direction, and two guide columns 24 adapted to the guide groove 2312 are provided at intervals on the lower end surface of the door lock panel 2. The guide columns 24 extend downward and are placed in the guide groove 2312, so that the slide plate 231 slides under the guidance of the guide columns 24; the slider can slide stably during the unlocking process of the door lock, thereby improving the structural stability of the door lock.

[0031] The lower end of the door handle 22 is provided with a pushing foot 221, which extends downward to one end of a slide plate 231. The slide plate 231 protrudes upward toward one end of the pushing foot 221 and is provided with a supporting portion 2313; when the door handle 22 is pulled, the pushing foot 221 rotates inward and drives the slide plate 231 to slide by pushing the supporting portion 2313; the slide plate 231 cooperates with the driven tooth portion 2321 through the driving gear to drive the unlocking plate 232 to rotate, thereby realizing unlocking.

[0032] The rear end of the lock tongue 12 is provided with a matching piece 121 that matches with the unlocking plate 232. Both ends of the matching piece 121 pass through the lock shell 11 and match with the corresponding unlocking plate 232, so that the door handle 22 inside the door and the door handle 22 outside the door can realize the unlocking operation of the door lock.

[0033] In order to realize the reverse locking of the door lock, a reverse locking assembly 13 for reverse locking the lock tongue 12 is arranged in the lock housing 11, and the reverse locking assembly 13 includes a locking member 131 which is slidably arranged and a pushing member 132 which is rotatably arranged, and a reverse locking pushing claw 1321 and an unlocking pushing claw 1322 are arranged at intervals on the edge of the pushing member 132, and a matching portion 1311 which matches with the reverse locking pushing claw 1321 and the unlocking pushing claw 1322 is arranged on the locking member 131;

[0034] When the door lock needs to be reversed, it is only necessary to drive the push member 132 to rotate counterclockwise, and the reverse locking push claw 1321 drives the locking member 131 to slide upward by pushing the matching portion 1311, so that the locking member 131 is placed behind the lock tongue 12 to prevent the lock tongue 12 from retracting into the lock housing 11, thereby realizing the reverse locking operation of the door lock; when the door lock needs to be unlocked, it is only necessary to rotate the push member 132 clockwise, and the unlocking push claw 1322 pushes the matching portion 1311 to drive the locking member 131 to slide downward and stagger with the lock tongue 12, thereby releasing the lock of the lock tongue 12, so that the lock tongue 12 can be retracted into the lock housing 11 again, thereby realizing the unlocking of the door lock;

[0035] One end of the pusher 132 is connected to the anti-lock knob 25 on the door lock panel 2 inside the door, and the other end is connected to the lock core 26 on the door lock panel 2 outside the door; a person outside the door can insert a key into the lock core 26 to drive the pusher 132 to rotate to achieve anti-lock and unlocking of the door lock, while a person inside the door only needs to rotate the anti-lock knob 25 to drive the pusher 132 to rotate to achieve anti-lock and unlocking operations of the door lock.

[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 door lock, comprising a lock body, with door lock panels arranged on the inner and outer sides of the lock body, the lock body comprising a lock shell and a lock tongue, the lock tongue being slidably arranged in the lock shell; wherein: The upper end of the door lock panel is recessed downward to form a mounting groove, a door handle is rotatably arranged in the mounting groove, and the lower end surface of the door lock panel is provided with an unlocking transmission component for driving the lock tongue to retract into the lock housing; The unlocking transmission assembly comprises a sliding plate arranged for sliding and an unlocking plate arranged for rotation, wherein the sliding plate is provided with a driving tooth portion on one side facing the unlocking plate, and one end of the unlocking plate is provided with a driven tooth portion matched with the driving tooth portion, and the other end is matched with the lock tongue; The door handle is pulled, and the lower end of the door handle pushes the slide plate to slide, and the slide plate drives the unlocking plate to rotate, so as to drive the lock tongue to retract into the lock housing.

2. A flat door lock according to claim 1, characterized in that: A guide groove is provided in the slide plate along its sliding direction, and at least one guide column matched with the guide groove is provided on the lower end surface of the door lock panel. The guide column extends downward and is placed in the guide groove, so that the slide plate slides under the guidance of the guide column.

3. A flat door lock according to claim 2, characterized in that: The lower end of the door handle is provided with a push support foot, and one end of the slide plate protrudes upwards toward the push support foot and is provided with a supporting portion; When the door handle is pulled, the push legs rotate inwards and drive the slide plate to slide by pushing the abutment portion.

4. A flat door lock according to claim 3, characterized in that: The rear end of the lock tongue is provided with a matching piece matched with the unlocking plate, and both ends of the matching piece are matched with the corresponding unlocking plate after passing through the lock shell.

5. A flat door lock according to claim 1 or 2 or 3 or 4, characterized in that: The lock housing is provided with an anti-locking assembly for anti-locking the lock tongue, the anti-locking assembly comprises a slidably arranged locking member and a rotatably arranged pushing member, the edge of the pushing member is provided with an anti-locking pushing claw and an unlocking pushing claw at intervals, and the locking member is provided with a matching portion that matches the anti-locking pushing claw and the unlocking pushing claw; When the push member rotates counterclockwise, the anti-lock push claw drives the locking member to slide upward by pushing the matching portion, so that the locking member is placed behind the lock tongue to prevent the lock tongue from retracting into the lock housing; The push piece is rotated clockwise, and the unlocking push claw pushes the matching portion to drive the locking piece to slide downward and stagger with the lock tongue, thereby releasing the lock of the lock tongue.

6. A flat door lock according to claim 5, characterized in that: One end of the pusher is connected to the anti-locking knob on the door lock panel inside the door, and the other end is connected to the lock core on the door lock panel outside the door.

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