Door locks

Abstract

The embodiment of the present application provides a door lock, including a lock shell, a lock tongue and a lock tongue toggle mechanism, wherein the lock shell is provided with a lock tongue hole, the lock tongue is telescopically arranged along the axis direction of the lock tongue hole, the lock tongue toggle mechanism includes a transmission plate, a toggle twist and a lock tongue toggle piece, the toggle twist is rotatably arranged on the bottom shell and selectively drives the lock tongue to extend or retract the lock tongue hole, the connection end of the lock tongue toggle piece is rotatably arranged on the bottom shell, the free end of the lock tongue toggle piece is transmission-connected with the toggle twist and drives the toggle twist to rotate during the rotation process, the transmission plate is slidably arranged on the bottom shell, and the driving mechanism is used to drive the transmission plate to slide. By arranging the lock tongue toggle mechanism, the function of unlocking the door lock is realized with a simple structure, and at the same time, the production cost is reduced, the reliability of the performance is improved, and the use is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of locks, and in particular to a door lock. Background Art

[0002] With the continuous development of technology, door locks are becoming more and more popular in life. Most of the existing door locks include a lock shell and a lock tongue. The lock tongue is telescopically arranged in the lock shell, wherein the lock tongue can be extended into the lock hole of the door frame through the lock tongue hole of the lock shell for locking. The door lock is generally transmitted and matched with the lock tongue through a transmission mechanism, and the lock tongue is driven by the transmission mechanism. Since the structure of the existing transmission mechanism is relatively complex, and the transmission performance between the transmission mechanism and the lock tongue is poor. Summary of the invention

[0003] In view of the above problems, the purpose of the present application is to provide a door lock for simplifying the structure of the transmission mechanism of the door lock and facilitating the transmission cooperation between the lock tongue and the transmission mechanism.

[0004] The embodiment of the present application provides a door lock, including a lock shell, a lock tongue, a lock tongue toggle mechanism and a driving mechanism, wherein the lock shell includes a bottom shell and a side plate, wherein the side plate is arranged around the edge of the bottom shell and forms a receiving cavity, and the side plate is provided with a lock tongue hole connected to the receiving cavity; the lock tongue is telescopically arranged along the axial direction of the lock tongue hole; the lock tongue toggle mechanism includes a transmission plate, a toggle button and a lock tongue toggle piece, wherein the toggle button is rotatably arranged on the bottom shell and selectively drives the lock tongue to extend or retract the lock tongue hole, and the lock tongue toggle piece includes a connecting end and a free end connected to each other, wherein the connecting end is rotatably arranged on the bottom shell, and the free end is provided with a slot, and the free end is transmission-connected to the toggle button and drives the toggle button to rotate during the rotation process, and the transmission plate The movable plate is slidably arranged on the bottom shell and is provided with a convex tooth, and the convex tooth is embedded in the card slot; the transmission plate is slidably arranged in a direction perpendicular to the axis of the lock tongue hole, and the lock tongue toggle piece includes a plate body and a convex block, the connecting end and the free end are arranged on the plate body, the convex block is connected to the edge of the plate body and is located between the free end and the connecting end, and the card slot is formed at the connection between the convex block and the plate body; when the transmission plate pushes the lock tongue toggle piece to rotate to a certain angle, the convex tooth can abut against the convex block; a driving mechanism is used to drive the transmission plate to slide; the driving mechanism includes a first fork, a second fork, a pull plate and a transmission toggle piece, the first fork is rotatably arranged on the bottom shell and is used to be connected with the handle, the The second shift fork is rotatably arranged on the bottom shell and driven by a motor, and the first shift fork and the second shift fork are both in transmission cooperation with the transmission plate; the transmission shifting piece is rotatably arranged on the bottom shell, and the pull plate is slidably arranged on the bottom shell, the second shift fork is in transmission cooperation with the pull plate, and pushes the pull plate to slide during the rotation process, the transmission shifting piece includes a first shifting end and a second shifting end connected to each other, the connection between the first shifting end and the second shifting end is rotatably arranged on the bottom shell, the first shifting end is hinged to the transmission plate, the pull plate selectively abuts against the second shifting end, and shifts the transmission plate to slide; the first shift fork includes a shifting body and a shifting tooth, the shifting body is rotatably connected to the bottom shell, and the shifting tooth is connected to the bottom shell On the toggle body, during the rotation of the first fork, a toggle protrusion is protruded on the periphery of the toggle tooth; the pull plate can cooperate with the first fork transmission, and the number of the toggle protrusions of the toggle tooth is two, and the two toggle protrusions protrude in opposite directions respectively, one of the toggle protrusions cooperates with the pull plate transmission, and the other toggle protrusion cooperates with the transmission plate transmission, when the second fork can push the pull plate to slide during the rotation process, the pull plate can abut against one of the toggle protrusions and push the first fork to rotate, and when the first fork rotates, the other toggle protrusion rotates to abut against the transmission plate and pushes the transmission plate to slide toward the lock tongue toggle plate.

[0005] Compared with the prior art, the door lock provided in the present application is provided with a lock tongue toggle mechanism. The driving mechanism drives the transmission plate to slide so that the toggle button is transmitted and drives the lock tongue to retract and retract, thereby realizing the unlocking of the door lock. The transmission plate and the toggle button are coordinated to make the assembly structure of the door lock simpler.

[0006] These and other aspects of the present application will become more clearly understood in the description of the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0008] Figure 1 This is a schematic diagram of the structure of a door lock in an assembled state proposed in an embodiment of the present application;

[0009] Figure 2 This is a structural schematic diagram of a lock housing proposed in an embodiment of the present application;

[0010] Figure 3 This is a schematic diagram of the assembly structure of a lock housing and a guide seat proposed in the first embodiment of the present application;

[0011] Figure 4 A schematic diagram of the disassembled structure of a door lock proposed in an embodiment of the present application;

[0012] Figure 5 A schematic diagram of the structure of a transmission plate proposed in an embodiment of the present application;

[0013] Figure 6 It is a structural schematic diagram of a lock tongue toggle mechanism proposed in an embodiment of the present application;

[0014] Figure 7 This is a schematic structural diagram of a first shift fork proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] In the existing door lock, the lock tongue is telescopically arranged in the lock housing, wherein the lock tongue can extend out of the lock housing through the lock tongue hole of the lock housing, and the door lock is matched with the lock tongue through the transmission mechanism. Since the structure of the existing transmission mechanism is relatively complex and the transmission performance between the transmission mechanism and the lock tongue is poor, it is not conducive to the transmission cooperation between the two. Therefore, the inventor proposes the door lock in the embodiment of the present application. The embodiments of the present application will be described in detail below with reference to the drawings.

[0017] Example

[0018] See also Figure 1 The present embodiment provides a door lock 100, including a lock housing 110, a lock tongue 120, a lock tongue toggle mechanism 130 and a drive mechanism 140, wherein the lock tongue 120 is movably disposed in the lock housing 110, and the lock tongue toggle mechanism 130 is disposed in the lock housing 110 and cooperates with the drive mechanism 140 in transmission.

[0019] See also Figure 2 In this embodiment, the lock housing 110 includes a bottom housing 111 and a side plate 112, wherein the bottom housing 111 is a roughly rectangular plate-shaped structure, wherein the side plate 112 is arranged around the edge of the bottom housing 111 and forms a receiving cavity 113, and it can be understood that the receiving cavity 113 is located in the area surrounded by the side plate 112 and the bottom housing 111. The side plate 112 is provided with a lock tongue hole 1121 for the lock tongue 120 to extend out, wherein the lock tongue hole 1121 passes through the side plate 112 and communicates with the receiving cavity 113. The bottom housing 111 can be integrally formed with the side plate 112, for example, by stamping or bending processes, and in addition, the bottom housing 111 and the side plate 112 can also be fixed by welding, clamping or threaded connection.

[0020] In addition, in this embodiment, the lock housing 110 further includes a cover plate (not shown in the figure), wherein the structure of the cover plate is adapted to the structure of the bottom housing 111 , and the cover plate is assembled on the bottom housing 111 and closes the receiving cavity 113 .

[0021] In this embodiment, the bottom shell 111 is provided with an assembly hole 1111, and the assembly hole 1111 passes through the bottom shell 111. The assembly hole 1111 is used to install structures such as a door handle, a lock core or a safety button. The number of assembly holes 1111 is three, and the three assembly holes 1111 are spaced apart and arranged on the bottom shell 111. In this embodiment, the line connecting the centers of the three assembly holes 1111 is substantially perpendicular to the axis of the bolt hole 1121. In addition, in some embodiments, the number and position of the assembly holes 1111 can be adjusted according to actual needs.

[0022] See also Figure 3In this embodiment, the door lock 100 further includes an optional guide seat 150, wherein the guide seat 150 is fixed to the bottom shell 111, and the guide seat 150 is provided with a guide groove 151 for mounting the lock tongue 120, wherein the guide groove 151 is arranged along the axial direction of the lock tongue hole 1121 and communicated with the lock tongue hole 1121, and the guide groove 151 is arranged on the surface of the guide seat 150 away from the bottom shell 111. It can be understood that the lock tongue 120 is slidably arranged in the guide groove 151 and can extend out of the lock tongue hole 1121 through the guide groove 151. The guide groove 151 can be used to guide the lock tongue 120 during the sliding process, so that the lock tongue 120 slides along the axial direction of the lock tongue hole 1121.

[0023] In addition, in some embodiments, the guide seat 150 may not be provided, and the guide groove 151 may be directly provided on the bottom shell 111. In addition, the bottom shell 111 may also be provided with a limit column, and the number of the limit columns may be multiple, and the multiple limit columns may be arranged in pairs along the axial direction of the lock tongue hole 1121, and the lock tongue 120 may be slidably arranged between the relative limit columns and abut against the limit columns during the sliding process to form a limit or guide. When it is necessary to explain, the abutment means that the lock tongue 120 may contact the limit column during the sliding process for guiding the lock tongue 120, but does not limit the sliding of the lock tongue 120 along the axial direction of the lock tongue hole 1121.

[0024] See also Figure 4 In this embodiment, the lock tongue 120 is along the axis direction of the lock tongue hole 1121 (such as Figure 4 The locking tongue 120 is telescopically arranged in the X direction as shown, and can selectively extend or retract the locking tongue hole 1121. It can be understood that the telescopic direction of the locking tongue 120 is substantially parallel to the axial direction of the locking tongue hole 1121. In this embodiment, the locking tongue 120 is a safety tongue, and the safety tongue is slidably arranged in the guide groove 151. In addition, in some embodiments, the locking tongue 120 can also be other types of locking tongues 120.

[0025] In this embodiment, the door lock 100 further includes a bolt fixing portion 160, which is a roughly plate-shaped structure, wherein the bolt fixing portion 160 is slidably disposed along the axial direction of the bolt hole 1121 and is connected to the bolt 120. It can be understood that the bolt fixing portion 160 can drive the bolt 120 to extend out of the bolt hole 1121 or shrink in the receiving cavity 113 during the sliding process. In this embodiment, the bolt fixing portion 160 is slidably disposed in the guide groove 151, wherein the bolt fixing portion 160 is provided with a transmission groove 161, which is disposed at one end of the bolt fixing portion 160 away from the bolt 120, and the transmission groove 161 runs through the side of the bolt fixing portion 160, and the bolt fixing portion 160 can be transmitted and matched with the bolt toggle mechanism 130 through the transmission groove 161.

[0026] In addition, in some embodiments, the locking tongue fixing portion 160 may also be configured as other structures, such as a rod-shaped structure.

[0027] In some embodiments, the door lock 100 also includes an optional travel switch, wherein the travel switch can be set on the guide seat 150. The travel switch can be used to detect the sliding travel of the lock tongue fixing portion 160. In addition, a distance sensor or the like can also be set.

[0028] The lock tongue toggle mechanism 130 is disposed in the receiving cavity 113, wherein the lock tongue toggle mechanism 130 includes a transmission plate 131, a toggle button 132 and a lock tongue toggle piece 133. Figure 4 and Figure 5 In this embodiment, the transmission plate 131 can be slidably disposed on the bottom shell 111, and the sliding direction of the transmission plate 131 (such as Figure 4 The Y direction shown in the figure is substantially perpendicular to the axial direction of the lock tongue hole 1121 , and the transmission plate 131 is slidably disposed on a side of the bottom shell 111 away from the lock tongue 120 , wherein the lock tongue fixing portion 160 faces the transmission plate 131 .

[0029] In this embodiment, the transmission plate 131 is provided with a convex tooth 1311 that cooperates with the lock tongue toggle plate 133, wherein the convex tooth 1311 is arranged on the side of the transmission plate 131 close to the lock tongue fixing portion 160. In addition, the transmission plate 131 is also provided with a guide hole 1312, which passes through the transmission plate 131, wherein the guide hole 1312 can be used to guide the transmission plate 131 during the sliding process.

[0030] Please also read Figure 4 and Figure 6 In this embodiment, the bolt toggle piece 133 is rotatably disposed on the bottom shell 111, and the bolt toggle piece 133 includes a connecting end 1331 and a free end 1332 that are connected to each other. The connecting end 1331 is rotatably disposed on the bottom shell 111, and the connecting end 1331 can be rotatably connected to the bottom shell 111 through a rotating shaft, and the free end 1332 is provided with a slot 1333 that cooperates with the convex tooth 1311. Specifically, the bolt toggle piece 133 includes a plate body 1334 and a protrusion 1335, the connecting end 1331 and the free end 1332 are respectively disposed at two ends of the plate body 1334, the protrusion 1335 is connected to the edge of the plate body 1334 and is located between the free end 1332 and the connecting end 1331, and the slot 1333 is formed at the connection between the protrusion 1335 and the plate body 1334. The protruding teeth 1311 of the transmission plate 131 face toward the bolt shifting piece 133 and are embedded in the locking groove 1333 .

[0031] By providing the convex tooth 1311 and the card slot 1333, the transmission plate 131 and the lock tongue toggle piece 133 can be connected by a card connection, and the transmission plate 131 can push the lock tongue toggle piece 133 to rotate in a direction away from the transmission plate 131 during the sliding process. By carding the convex tooth 1311 in the card slot 1333, the transmission plate 131 can be prevented from being separated from the lock tongue toggle piece 133 during the sliding process, thereby ensuring the transmission cooperation between the transmission plate 131 and the lock tongue toggle piece 133. In addition, the card slot 1333 is arranged at the connection between the protrusion 1335 and the plate body 1334. When the transmission plate 131 pushes the lock tongue toggle piece 133 to rotate to a certain angle, the convex tooth 1311 can abut against the protrusion 1335 to prevent the convex tooth 1311 from separating from the lock tongue toggle piece 133 during the rotation process. In addition, it is beneficial for the thrust of the transmission plate 131 to act on the lock tongue toggle piece 133, thereby increasing the steering force of the lock tongue toggle piece 133.

[0032] Please also read Figure 1 and Figure 6 In this embodiment, the toggle button 132 is rotatably disposed on the bottom shell 111 and selectively drives the lock tongue 120 to extend or retract the lock tongue hole 1121. Specifically, the toggle button 132 includes a rotating portion 1321 and a toggle portion 1322, the rotating portion 1321 is rotatably connected to the bottom shell 111, and the rotating portion 1321 can be rotatably assembled in one of the assembly holes 1111, wherein the rotating portion 1321 can be rotated with the axis of the assembly hole 1111 as the rotation center. The toggle portion 1322 is connected to the rotating portion 1321, wherein the toggle portion 1322 is located in the transmission groove 161 and selectively drives the lock tongue fixing portion 160 to slide. It can be understood that the toggle portion 1322 abuts against the lock tongue fixing portion 160 during the rotation process and toggle the lock tongue fixing portion 160 to slide.

[0033] By arranging the toggle portion 1322 in the transmission groove 161 of the lock tongue fixing portion 160, the toggle portion 1322 can be extended into the lock tongue fixing portion 160 for transmission cooperation. In addition, during the sliding process of the lock tongue fixing portion 160, it can be ensured that the toggle portion 1322 is always in transmission cooperation with the lock tongue fixing portion 160, thereby preventing the toggle portion 1322 from sliding off the lock tongue fixing portion 160.

[0034] In some embodiments, the door lock 100 further includes a safety button (not shown in the figure), wherein the safety button is disposed outside the receiving cavity 113, and can be rotatably assembled in the assembly hole 1111 and connected to the rotating portion 1321. When the user rotates the safety button, the safety button can drive the toggle button 132 to rotate during the rotation process. For example, when the user rotates the safety button forward, the safety button drives the toggle button 132 to rotate counterclockwise, and the toggle button 132 can drive the lock tongue fixing portion 160 to slide toward the lock tongue hole 1121 during the rotation process, so that the lock tongue fixing portion 160 drives the lock tongue 120 to extend out of the lock tongue hole 1121, thereby achieving locking; when the user rotates the safety button reversely, the safety button drives the toggle button 132 to rotate clockwise, and the toggle button 132 can drive the lock tongue fixing portion 160 to slide along the lock tongue hole 1121 during the rotation process, so that the lock tongue 120 is retracted to the lock tongue hole 1121, thereby achieving unlocking.

[0035] By connecting the safety button with the toggle button 132, the user can manually control the extension and retraction of the lock tongue 120. If the lock tongue toggle mechanism 130 cannot be used normally, the user can quickly unlock the lock through the safety button, so that a quick escape can be achieved in an emergency.

[0036] In this embodiment, the bolt toggle mechanism 130 further includes a connecting rod 134, wherein one end of the connecting rod 134 is rotatably connected to the free end 1332, and the other end is connected to the toggle portion 1322, wherein the connecting rod 134 can be rotatably connected to the toggle portion 1322. In addition, the connecting rod 134 can be disposed between the toggle portion 1322 and the bottom shell 111 to prevent interference between the connecting rod 134 and components such as the bolt fixing portion 160.

[0037] The linkage between the toggle button 132 and the lock tongue toggle piece 133 can be achieved through the connecting rod 134. When the transmission plate 131 pushes the lock tongue toggle piece 133 to rotate, the lock tongue toggle piece 133 can drive the toggle button 132 to rotate through the connecting rod 134. During the rotation process, the toggle button 132 can drive the lock tongue 120 to slide toward the receiving cavity 113 to achieve the retraction of the lock tongue 120.

[0038] In addition, in some embodiments, the connecting rod 134 may not be provided, wherein the free end 1332 of the lock tongue toggle piece 133 may be directly connected to the toggle portion 1322 of the toggle button 132 .

[0039] In some embodiments, the bolt toggle mechanism 130 further includes an elastic member (not shown) for returning the toggle button 132. The elastic member may be made of a material having an elastic function, such as rubber or a spring, wherein one end of the elastic member may be connected to the toggle portion 1322, and the other end may be connected to the lock housing 110. When the toggle portion 1322 is subjected to a force to rotate and stretch the elastic member, the elastic member may be deformed to a certain extent. When the external force acting on the toggle portion 1322 disappears, the toggle portion 1322 rotates to the initial position under the action of the restoring force of the elastic member. The toggle button 132 may be rotated and reset by providing the elastic member.

[0040] Please also read Figure 1 and Figure 3 In this embodiment, the door lock 100 further includes a guide mechanism 170 for guiding the transmission plate 131, wherein the guide mechanism 170 includes a guide column 171, and the guide column 171 is connected to the bottom shell 111, wherein the guide column 171 can be movably inserted into the guide hole 1312 of the transmission plate 131. During the sliding process of the transmission plate 131, the cooperation between the guide column 171 and the guide hole 1312 can play a guiding and limiting role. In addition, the number of guide columns 171 can be adjusted according to actual needs, and is not limited here.

[0041] In addition, in some embodiments, the transmission plate 131 may not be provided with the guide hole 1312. For example, the guide posts 171 may be provided on both sides of the sliding direction of the transmission plate 131, wherein the transmission plate 131 may be slidably provided between the guide posts 171. During the sliding process, the two ends of the transmission plate 131 are respectively in contact with the guide posts 171. In addition, in some embodiments, the bottom shell 111 may also be provided with a guide groove, and the transmission plate 131 may be slidably provided in the guide groove to form a guide.

[0042] The driving mechanism 140 is disposed on the lock housing 110 and is used to drive the transmission plate 131 to slide. Figure 4 In this embodiment, the driving mechanism 140 includes a first fork 141 and a second fork 142. The first fork 141 is rotatably disposed on the bottom shell 111 and is used to connect with the door handle, and the first fork 141 is in transmission cooperation with the transmission plate 131. Specifically, Figure 7As shown, the first shift fork 141 includes a shift body 1411 and a shift tooth 1412, wherein the shift body 1411 is rotatably connected to the bottom shell 111, specifically, the shift body 1411 is rotatably arranged in one of the assembly holes 1111, and the shift body 1411 can rotate with the axis of the assembly hole 1111 as the rotation center, wherein the shift body 1411 is provided with a square shaft hole 1413, wherein the square shaft hole 1413 is coaxially arranged with the assembly hole 1111, and the square shaft hole 1413 can be used to install a door handle, and the shape of the square shaft hole 1413 is adapted to the structure of the door handle, so that the door handle drives the first shift fork 141 to rotate during the rotation process. The shift tooth 1412 is connected to the shift body 1411, and during the rotation process of the first shift fork 141, the shift tooth 1412 abuts against the transmission plate 131 and can push the transmission plate 131 to slide. The periphery of the shifting tooth 1412 may be provided with a shifting protrusion, which may protrude in a direction substantially perpendicular to the rotation axis of the shifting body 1411 . During the rotation of the first shift fork 141 , the shifting protrusion abuts against the transmission plate 131 and pushes the transmission plate 131 to slide.

[0043] like Figure 4 As shown, in this embodiment, the second shift fork 142 is rotatably disposed on the bottom shell 111 and can be driven by a motor, and is in transmission cooperation with the transmission plate 131. The second shift fork 142 is rotatably disposed on another assembly hole 1111, and can rotate with the axis of the assembly hole 1111 as the rotation center. The second shift fork 142 is driven to rotate by the motor, and the second shift fork 142 can shift the transmission plate 131 to slide during the rotation process. For example, the second shift fork 142 is provided with a shifting tooth, and during the rotation process of the second shift fork 142, the shifting tooth rotates to abut against the transmission plate 131 and pushes the transmission plate 131 to slide.

[0044] In addition, in some embodiments, the second fork 142 may also be connected to a transmission mechanism or a door handle driven by a mechanical key, so that the second fork 142 can be driven to rotate when the user turns the key or the door handle.

[0045] Please refer again Figure 4 In this embodiment, the driving mechanism 140 further includes a pull plate 143 and a transmission toggle plate 144, wherein the transmission toggle plate 144 includes a first toggle end 1441 and a second toggle end 1442 connected to each other, the connection between the first toggle end 1441 and the second toggle end 1442 is rotatably disposed on the bottom shell 111, and the first toggle end 1441 is hinged to the transmission plate 131. The transmission toggle plate 144 is disposed between the first fork 141 and the second fork 142, and the transmission toggle plate 144 can drive the transmission plate 131 to slide during the transmission process.

[0046] In this embodiment, the pull plate 143 is slidably disposed on the bottom shell 111, wherein the sliding direction of the pull plate 143 is substantially the same as the sliding direction of the transmission plate 131. The second shift fork 142 is in transmission cooperation with the pull plate 143, and when the second shift fork 142 is rotating, the pull plate 143 can be pushed to slide. It can be understood that the shift fork 142 can abut against the end of the pull plate 143 during the rotation process and push the pull plate 143 to slide, and the pull plate 143 can abut against the second toggle end 1442 during the sliding process and push the transmission toggle plate 144 to rotate. When the transmission toggle plate 144 pushes the transmission plate 131 to slide during the rotation process, the transmission plate 131 is transmitted through the lock tongue toggle plate 133 and the connecting rod 134, and the connecting rod 134 can drive the toggle button 132 to rotate and toggle the lock tongue 120 to retract into the receiving cavity 113.

[0047] In some embodiments, the pull plate 143 can also be transmitted and cooperated with the first fork 141. For example, the number of the driving protrusions of the driving tooth 1412 can be two, and the two driving protrusions protrude in opposite directions. One of the driving protrusions is transmitted and cooperated with the pull plate 143, and the other driving protrusion is transmitted and cooperated with the transmission plate 131. When the second fork 142 can push the pull plate 143 to slide during rotation, the pull plate 143 can be abutted against one of the driving protrusions and push the first fork 141 to rotate. When the first fork 141 rotates, the other driving protrusion rotates to abut against the transmission plate 131 and pushes the transmission plate 131 to slide toward the lock tongue driving piece 133, thereby pushing the lock tongue driving piece 133 to rotate and realize linkage, thereby realizing the retraction of the lock tongue 120.

[0048] The door lock 100 provided in this embodiment is connected to the lock tongue 120 through a lock tongue toggle mechanism 130, and the transmission plate 131 can be slidably set on the bottom shell 111, wherein the lock tongue toggle button 132 can be rotatably connected to the bottom shell 111, and the transmission plate 131 realizes transmission cooperation with the lock tongue 120 through the lock tongue toggle piece 133 and the toggle button 132. At the same time, the assembly structure is simple and convenient for transmission between the two. In addition, the convex tooth 1311 of the transmission plate 131 is clamped in the clamping groove 1333 of the lock tongue toggle piece 133 to prevent the lock tongue toggle piece 133 from being separated from the transmission plate 131 during rotation.

[0049] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A door lock, characterized in that: include: A lock housing, the lock housing comprising a bottom housing and a side plate, the side plate being arranged around the edge of the bottom housing to form a receiving cavity, the side plate being provided with a lock tongue hole communicating with the receiving cavity; A lock tongue, wherein the lock tongue is telescopically arranged along the axis direction of the lock tongue hole; The lock tongue toggle mechanism comprises a transmission plate, a toggle button and a lock tongue toggle piece, the toggle button is rotatably arranged on the bottom shell and selectively drives the lock tongue to extend or retract the lock tongue hole, the lock tongue toggle piece comprises a connecting end and a free end connected to each other, the connecting end is rotatably arranged on the bottom shell, the free end is provided with a card slot, the free end is transmission-connected with the toggle button and drives the toggle button to rotate during the rotation process, the transmission plate is slidably arranged on the bottom shell and is provided with a convex tooth, and the convex tooth is embedded in the card slot; the transmission plate is slidably arranged in a direction perpendicular to the axis of the lock tongue hole, the lock tongue toggle piece comprises a plate body and a convex block, the connecting end and the free end are arranged on the plate body, the convex block is connected to the edge of the plate body and is located between the free end and the connecting end, and the card slot is formed at the connection between the convex block and the plate body; when the transmission plate pushes the lock tongue toggle piece to rotate to a certain angle, the convex tooth can abut against the convex block; and The driving mechanism is used to drive the transmission plate to slide; the driving mechanism includes a first shift fork, a second shift fork, a pull plate and a transmission shifting piece, the first shift fork is rotatably arranged on the bottom shell and is used to be connected with the handle, the second shift fork is rotatably arranged on the bottom shell and driven by a motor, the first shift fork and the second shift fork are both in transmission cooperation with the transmission plate; the transmission shifting piece is rotatably arranged on the bottom shell, the pull plate is slidably arranged on the bottom shell, the second shift fork is in transmission cooperation with the pull plate, and pushes the pull plate to slide during the rotation process, the transmission shifting piece includes a first shifting end and a second shifting end connected to each other, the connection between the first shifting end and the second shifting end is rotatably arranged on the bottom shell, the first shifting end is hinged to the transmission plate, the pull plate selectively abuts against the second shifting end, and shifts the transmission plate to slide; the first A shift fork includes a shift body and a shift tooth, the shift body is rotatably connected to the bottom shell, the shift tooth is connected to the shift body, and during the rotation of the first shift fork, a shift protrusion is protruded on the periphery of the shift tooth; the pull plate can cooperate with the first shift fork transmission, the number of the shift protrusions of the shift tooth is two, and the two shift protrusions protrude in opposite directions respectively, one of the shift protrusions cooperates with the pull plate transmission, and the other shift protrusion cooperates with the transmission plate transmission, when the second shift fork can push the pull plate to slide during the rotation process, the pull plate can abut against one of the shift protrusions and push the first shift fork to rotate, and during the rotation of the first shift fork, the other shift protrusion rotates to abut against the transmission plate and pushes the transmission plate to slide toward the lock tongue shift piece.

2. The door lock according to claim 1, characterized in that: The first shift fork includes a shift body and shift teeth. The shift body is rotatably connected to the bottom shell and is provided with a square shaft hole. The shift fork is connected to the shift body. During the rotation of the first shift fork, the shift teeth abut against the transmission plate and push the transmission plate to slide.

3. The door lock according to claim 1, characterized in that: The toggle button includes a rotating part and a toggle part, the rotating part is rotatably connected to the bottom shell, the toggle part is connected to the rotating part, and the lock tongue toggle mechanism also includes a connecting rod, one end of the connecting rod is rotatably connected to the free end, and the other end is connected to the toggle part.

4. The door lock according to claim 3, characterized in that: The door lock also includes a lock tongue fixing part, which is slidably arranged along the axial direction of the lock tongue hole and connected to the lock tongue, and the lock tongue fixing part is provided with a transmission groove, and the toggle part is located in the transmission groove and selectively drives the lock tongue fixing part to slide.

5. The door lock according to claim 4, characterized in that: The connecting rod is arranged between the shifting part and the bottom shell.

6. The door lock according to claim 1, characterized in that: The door lock also includes a guide seat, which is provided with a guide groove connected to the lock tongue hole, the guide groove is arranged along the axial direction of the lock tongue hole, and the lock tongue is slidably arranged in the guide groove.

7. The door lock according to claim 1, characterized in that: The door lock also includes a guiding mechanism for guiding the transmission plate.

8. The door lock according to claim 1, characterized in that: The locking tongue toggle mechanism also includes an elastic member for returning the toggle button.

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