Flat door lock

Abstract

The utility model discloses a flat 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. The transmission assembly comprises a transmission plate and a linkage piece which are both rotationally arranged on the door lock panel, the upper end of the linkage piece is matched with the lower end of the transmission plate, and the lower end of the linkage piece extends into the lock shell to be matched with the spring bolt. The upper end of the transmission plate is matched with the door handle, when the door handle is pulled, the lower end of the door handle pushes the transmission plate to rotate, the transmission plate drives the linkage piece to rotate, and the linkage piece drives the spring bolt to retract into the lock shell. And the unlocking operation is simplified.

Description

Technical Field

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

[0002] Currently, the unlocking method of most door locks on the market is to press the door handles inside and outside the door to drive the lock tongue to retract into the lock body to achieve the opening of the door lock;

[0003] For example, the Chinese utility model patent with the publication number of CN216553384U discloses a new type of ecological door lock, which includes 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 with both ends respectively connected to the inner handle and the outer handle to realize the linkage of the inner handle and the outer handle; the inner handle is rotatably arranged on the inner handle seat, and the outer handle is rotatably arranged on the outer handle seat;

[0004] Both the inner door handle and the outer door handle protrude outside the door panel, and the appearance of the existing handle door lock is not beautiful; at the same time, it makes it easy for people to hit the inner and outer door handles, and even hook their clothes, bringing potential safety hazards. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a flat panel door lock.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A flat panel door lock includes a lock body, and door lock panels are arranged on both the inner and outer sides of the lock body. The lock body includes a lock shell and a lock tongue. The lock tongue is slidably arranged in the lock shell, and a magnet is built in the front end thereof; a mounting groove is recessed downward at the upper end of the door lock panel, a door handle is rotatably arranged in the mounting groove, and a transmission assembly for driving the lock tongue to retract into the lock shell is arranged on the lower end surface of the door lock panel;

[0008] The transmission assembly includes a transmission plate and a linkage member that are both rotatably arranged on the door lock panel. The upper end of the linkage member is matched with the lower end of the transmission plate, and the lower end of the linkage member extends into the lock shell and is matched with the lock tongue;

[0009] The upper end of the transmission plate is matched with the door handle. When the door handle is pulled, the lower end of the door handle pushes the transmission plate to rotate. The transmission plate drives the linkage member to rotate, so that the linkage member drives the lock tongue to retract into the lock shell.

[0010] The present utility model is further provided that: a lower hinge hole is provided at the lower end of the transmission plate;

[0011] The upper end of the linkage is provided with a hinged claw, and the hinged claw is provided with a hinged shaft hinged to the lower hinged hole; the linkage is hinged to the lower end of the transmission plate through the cooperation of the hinged shaft and the lower hinged hole.

[0012] The present utility model is further provided that: a pushing support foot is provided at the lower end of the door handle, and an unlocking slider is slidably arranged on the door lock panel;

[0013] One end of the unlocking slider is matched with the pushing support foot, and the other end is hinged to the upper hinged hole at the upper end of the transmission plate;

[0014] When the door handle is pulled, the pushing support foot rotates inward and pushes the unlocking slider to slide inward, and the unlocking slider will drive the transmission plate to rotate.

[0015] The present utility model is further provided that: a sliding groove for the unlocking slider to slide is provided on the lower end surface of the door lock panel.

[0016] The present utility model is further provided that: an anti-lock abutting claw is provided on the linkage, and an anti-lock member is slidably arranged on the door lock panel. The anti-lock member is placed below the linkage and is matched with an anti-lock knob or an anti-lock lock core on the door lock panel;

[0017] When the anti-lock knob or the anti-lock lock core drives the anti-lock member to slide upward, the anti-lock abutting portion of the anti-lock member is placed behind the anti-lock abutting claw of the linkage, preventing the linkage from rotating and realizing the anti-lock of the door lock.

[0018] The present utility model is further provided that: an unlocking member is rotatably arranged in the lock case. The unlocking member is linked with the linkage through a square shaft. An unlocking pushing claw is provided on one side of the unlocking member. The linkage drives the unlocking member to rotate, and the unlocking pushing claw drives the lock tongue to retract into the lock case to realize unlocking.

[0019] The beneficial effect of the present utility model: The door handle of the flat door lock is rotatably arranged in the installation groove recessed in the door lock panel through a rotating shaft, effectively avoiding the door handle protruding outside the door lock panel; avoiding the door handle from catching clothes, preventing people from colliding with the door handle, eliminating potential safety hazards, and at the same time making the appearance of the door lock more simple and beautiful; when unlocking, only need to pull the door handle outward. The lower end of the door handle pushes the transmission plate to rotate. The transmission plate drives the linkage to rotate, and the linkage drives the lock tongue to retract into the lock case, then the door leaf can be opened; compared with the traditional door lock that needs to press the door handle to unlock, this flat door lock unlocks by pushing and pulling, making the unlocking operation of the door lock more convenient and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural view of a flat door lock of the present utility model Figure 1 ;

[0021] Figure 2 Structural schematic diagram of a flat door lock of the present utility model Figure 2 ;

[0022] Figure 3 Cooperation diagram of the linkage member and the lock body of a flat door lock;

[0023] Figure 4 Structural schematic diagram of the lock body of the door lock panel of a flat door lock;

[0024] Figure 5 Structural schematic diagram of the upper end face of the door lock panel of a flat door lock;

[0025] Figure 6 Structural schematic diagram of the lower end face of the door lock panel of a flat door lock;

[0026] Figure 7 Cooperation diagram of the unlocking block and the transmission assembly of a flat door lock;

[0027] Figure 8 Installation diagram of the unlocking block on the door lock panel of a flat door lock;

[0028] Figure 9 Cooperation diagram of the unlocking block and the door handle of a flat door lock;

[0029] Explanation of reference numerals: 1, lock body; 11, lock shell; 12, lock tongue; 13, unlocking member; 131, unlocking push claw; 2, door lock panel; 21, installation groove; 22, door handle; 221, push support foot; 23, transmission assembly; 231, transmission plate; 2311, upper hinge hole; 2312, lower hinge hole; 232, linkage member; 2321, hinge claw; 23211, hinge shaft; 2322, anti-lock abutting claw; 233, unlocking block; 24, sliding groove; 25, anti-lock member; 251, anti-lock abutting portion; 26, anti-lock knob; 27, lock core; 3, buckle box. Detailed implementation manners

[0030] Refer to the attached Figures 1 to 9 to further elaborate on a flat door lock of the present utility model in detail.

[0031] A flat door lock includes a lock body 1, and door lock panels 2 are provided on both the inner and outer sides of the lock body 1. The lock body 1 includes a lock case 11 and a lock tongue 12. The lock tongue 12 is slidably disposed in the lock case 11, and a magnet is built in the front end thereof. After closing the door, the lock tongue 12 will be automatically sucked out of the lock case 11 under the magnetic force of the magnet in the door frame catch box 3, and the door leaf will be locked to the door frame. An installation groove 21 is recessed downward at the upper end of the door lock panel 2, and a door handle 22 is rotatably disposed in the installation groove 21, effectively preventing the door handle 22 from protruding outside the door lock panel 2; preventing the door handle 22 from hooking clothes, avoiding people from colliding with the door handle 22, eliminating potential safety hazards, and at the same time making the appearance of the door lock more simple and beautiful;

[0032] A transmission assembly 23 for driving the lock tongue 12 to retract into the lock case 11 is provided on the lower end surface of the door lock panel 2. The transmission assembly 23 includes a transmission plate 231 and a linkage member 232 that are both rotatably disposed on the door lock panel 2. The upper end of the linkage member 232 is matched with the lower end of the transmission plate 231, and the lower end of the linkage member 232 extends into the lock case 11 and is matched with the lock tongue 12. The upper end of the transmission plate 231 is matched with the door handle 22. When unlocking, only need to pull the door handle 22 outwards, the lower end of the door handle 22 pushes the transmission plate 231 to rotate. The transmission plate 231 drives the linkage member 232 to rotate, so that the linkage member 232 drives the lock tongue 12 to retract into the lock case 11, and the door leaf can be opened. Compared with the traditional door lock that needs to press down the door handle 22 to unlock, this flat door lock unlocks by pushing and pulling, making the unlocking operation of the door lock more convenient and simple.

[0033] A lower hinge hole 2312 is provided at the lower end of the transmission plate 231, and a hinge claw 2321 is provided at the upper end of the linkage member 232. A hinge shaft 23211 that is hinged to the lower hinge hole 2312 is provided on the hinge claw 2321. The linkage member 232 is hinged to the lower end of the transmission plate 231 by the cooperation of the hinge shaft 23211 and the lower hinge hole 2312.

[0034] A push support leg 221 is provided at the lower end of the door handle 22. An unlocking slider 233 is slidably arranged on the door lock panel 2. A sliding groove 24 for the unlocking slider 233 to slide is provided on the lower end surface of the door lock panel 2. The unlocking slider 233 slides along the sliding groove 24 under the push of the door handle 22. One end of the unlocking slider 233 is matched with the push support leg 221, and the other end is hinged to the upper hinge hole 2311 at the upper end of the transmission plate 231. Both the upper hinge hole 2311 and the lower hinge hole 2312 are kidney-shaped holes arranged in the vertical direction. When the door handle 22 is pulled, the push support leg 221 rotates inward and pushes the unlocking slider 233 to slide inward. The unlocking slider 233 will drive the transmission plate 231 to rotate. The rotating transmission plate 231 drives the linkage 232 to rotate, so as to drive the lock tongue 12 to retract into the lock housing 11 to realize the unlocking operation of the door lock.

[0035] In order to realize the anti-lock of the door lock, an anti-lock abutting claw 2322 is provided on the linkage 232. An anti-lock member 25 is slidably arranged on the door lock panel 2. The anti-lock member 25 is placed below the linkage 232 and is matched with the anti-lock knob 26 or the anti-lock lock core 27 on the door lock panel 2. The anti-lock knob 26 is installed on the door lock panel 2 inside the door, and the anti-lock lock core 27 is installed on the door lock panel 2 outside the door. The anti-lock knob 26 and the anti-lock lock core 27 are connected by a square shaft and are linked with each other. When the anti-lock knob 26 is rotated or the key rotates the anti-lock lock core 27 to drive the anti-lock member 25 to slide upward, the anti-lock abutting portion 251 of the anti-lock member 25 is placed behind the anti-lock abutting claw 2322 of the linkage 232, preventing the linkage 232 from rotating, so that people cannot pull the door handle 22 to drive the lock tongue 12 to slide through the transmission assembly 23, realizing the anti-lock of the door lock.

[0036] In order to enable the transmission assembly 23 to better drive the lock tongue 12 to slide, an unlocking member 13 is rotatably arranged in the lock housing 11. The unlocking member 13 is linked with the linkages 232 on the door lock panels 2 inside and outside the door through a square shaft. An unlocking push claw 131 is provided on one side of the unlocking member 13. The linkage 232 drives the unlocking member 13 to rotate. The unlocking push claw 131 drives the lock tongue 12 to overcome the magnetic force of the magnet on the buckle box 3 and retract into the lock housing 11 to realize unlocking.

[0037] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements 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, and having a magnet built into its front end; 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 a transmission assembly for driving the lock tongue to retract into the lock housing is arranged on the lower end surface of the door lock panel; The transmission assembly includes a transmission plate and a linkage member both rotatably arranged on the door lock panel, the upper end of the linkage member matches with the lower end of the transmission plate, the lower end of the linkage member extends into the lock housing and matches with the lock tongue, and the linkage member is provided with a square shaft hole for inserting a square shaft; the upper end of the transmission plate matches with the door handle, when the door handle is pulled, the lower end of the door handle pushes the transmission plate to rotate, and the transmission plate drives the linkage member to rotate, so that the linkage member drives the lock tongue to retract into the lock housing; The linkage member is provided with an anti-locking abutting claw, and the door lock panel is slidably provided with an anti-locking member, which is placed below the linkage member and cooperates with the anti-locking knob or anti-locking lock core on the door lock panel; When the anti-lock knob or the anti-lock lock core drives the anti-lock member to slide upward, the anti-lock abutment portion of the anti-lock member is placed behind the anti-lock abutment claw of the linkage member, preventing the linkage member from rotating, thereby realizing the anti-locking of the door lock.

2. A flat door lock according to claim 1, characterized in that: A lower hinge hole is provided at the lower end of the transmission plate; The upper end of the linkage piece is provided with an articulation claw, and the articulation claw is provided with an articulation shaft articulated with the lower articulation hole; the linkage piece is articulated with the lower end of the transmission plate through the articulation shaft cooperating with the lower articulation hole.

3. A flat door lock according to claim 2, characterized in that: A pushing foot is provided at the lower end of the door handle, and an unlocking block is slidably provided on the door lock panel; One end of the unlocking block cooperates with the pushing foot, and the other end is hinged to the upper hinge hole on the upper end of the transmission plate; When the door handle is pulled, the pushing foot rotates inwards and pushes the unlocking block to slide inwards, and the unlocking block drives the transmission plate to rotate.

4. A flat door lock according to claim 3, characterized in that: A sliding groove for sliding the unlocking dial block is arranged on the lower end surface of the door lock panel.

5. A flat door lock according to claim 1 or 2 or 3 or 4, characterized in that: An unlocking piece is rotatably arranged in the lock shell, and the unlocking piece is linked with a linkage piece through a square shaft. An unlocking push claw is arranged on one side of the unlocking piece. The linkage piece drives the unlocking piece to rotate, and the unlocking push claw drives the lock tongue to retract into the lock shell to realize unlocking.

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