CN210976908U - Door lock - Google Patents

Abstract

The embodiment of the application provides a door lock, including lock shell, oblique tongue subassembly, locking mechanical system and return mechanism, the lock shell has and accepts the chamber, the lock shell is equipped with and accepts the chamber intercommunication the dead bolt hole, the oblique tongue subassembly includes oblique tongue fixed part and oblique tongue, the oblique tongue rotates to be connected in oblique tongue fixed part, and the rotation axis of oblique tongue and the mutual perpendicular in dead bolt hole, the oblique tongue has oblique tongue face, the dead bolt hole is stretched out to oblique tongue face at least part, and drive the oblique tongue when the stress of oblique tongue face, the selectable limit of locking mechanical system oblique tongue rotates, return mechanism is used for resetting the oblique tongue. The door lock that this application implementation provided, when unblanking, the accessible removes the restriction of locking mechanical system to the oblique tongue, rotates when oblique tongue face atress, can make the lockhole of oblique tongue slip off the door frame, reduces the slip stroke of oblique tongue, and then realizes unblanking fast.

Description

Door lock

Technical Field

The application relates to the technical field of locks, in particular to a door lock.

Background

Along with the continuous development of technique, the lock is more and more popularized in the life, and current most lock is including lock shell and spring bolt, and the spring bolt is flexible to be set up in the lock shell, and wherein the spring bolt hole of spring bolt accessible lock shell stretches out outside the lock shell, and the lock realizes unblanking or locking through the flexible of spring bolt, and in long-term the use, the spring bolt is flexible many times to make a round trip to lead to the spring bolt to appear phenomenon such as card death easily, in addition, is unfavorable for realizing unblanking fast.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, it is an object of the present application to provide a door lock for achieving quick unlocking.

The embodiment of the application provides an oblique tongue subassembly, including lock shell, oblique tongue subassembly, locking mechanical system and answer mechanism, the lock shell has and accepts the chamber, the lock shell is equipped with and accepts the spring bolt hole of chamber intercommunication, the oblique tongue subassembly includes oblique tongue fixed part and oblique tongue, the oblique tongue fixed part sets up in the lock shell and lies in and accepts the intracavity, the oblique tongue rotates to be connected in oblique tongue fixed part, and the axis of rotation of oblique tongue and the axis mutually perpendicular of spring bolt hole, the oblique tongue has oblique tongue face, the at least partial stretching out of oblique tongue face the spring bolt hole, and drive oblique tongue when oblique tongue face atress rotates, locking mechanical system sets up in acceping the intracavity for the selective limited oblique tongue rotates, answer mechanism locates and holds the intracavity and is used for the oblique tongue that resets.

Compared with the prior art, the door lock provided by the application has the advantages that the latch bolt is rotationally connected to the latch bolt fixing part, when the door lock is unlocked, the limit of the latch bolt is relieved through the locking mechanism, when the latch bolt surface of the latch bolt is stressed, the latch bolt is driven to rotate, the latch bolt slides away from the lock hole of the door frame through the rotation of the latch bolt, and then the rapid unlocking is realized.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of an assembly structure of a door lock proposed in an embodiment of the present application;

fig. 2 is a schematic structural disassembly diagram of a door lock provided in an embodiment of the present application;

fig. 3 is a schematic structural view of a lock case according to a first embodiment of the present application;

FIG. 4 is a schematic illustration of a disassembled structure of the latch bolt assembly, the locking mechanism and the restoring mechanism proposed in the embodiment of the present application;

FIG. 5 is a schematic view of a latch bolt assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a latch tongue according to an embodiment of the present application at a first viewing angle;

FIG. 7 is a schematic structural diagram of a latch tongue according to an embodiment of the present application at a second viewing angle;

FIG. 8 is a schematic structural view of a latch rod according to an embodiment of the present application;

FIG. 9 is a schematic exploded view of a locking mechanism according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a segment proposed in the embodiment of the present application;

fig. 11 is a schematic structural view of a door lock proposed in the embodiment of the present application in a use state;

fig. 12 is a schematic structural view of a first pulling plate proposed in the embodiment of the present application;

fig. 13 is a schematic structural diagram of a second pulling plate in the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Most lock when unblanking, the spring bolt need return completely to just can slide completely from the lockhole of door frame in the lock shell, and then realize unblanking, phenomenon such as dead appears blocking easily after the spring bolt makes a round trip to stretch out and draw back many times, probably leads to the spring bolt can't stretch out the spring bolt hole scheduling problem once more, simultaneously, also does not benefit to the long-term use that is used for ordering about the spring bolt to carry out the mechanism that stretches out and draws back, in addition, also does not benefit to the realization and unblan. Therefore, the inventor proposes the door lock in the embodiment of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Examples

Referring to fig. 1, the present embodiment provides a door lock 100, which includes a lock housing 110, a latch bolt assembly 120, a locking mechanism 130, and a restoring mechanism 140, wherein the latch bolt assembly 120 is movably disposed in the lock housing 110, and the locking mechanism 130 and the restoring mechanism 140 are both disposed in the lock housing 110.

Referring to fig. 2, the lock case 110 has a receiving cavity 111, and the lock case 110 has a bolt hole 112 communicating with the receiving cavity 111, wherein the bolt hole 112 allows the bolt to extend and retract and rotate. Specifically, the lock case 110 includes a bottom case 113 and a cover plate (not shown) detachably mounted on the bottom case 113 for closing the receiving cavity 111, wherein the structure of the cover plate is matched with that of the bottom case 113.

In this embodiment, the bottom case 113 includes a bottom plate 1131 and a side plate 1132, wherein the side plate 1132 surrounds an edge of the bottom plate 1131 and forms the receiving cavity 111, it can be understood that the receiving cavity 111 is located in an area surrounded by the side plate 1132 and the bottom plate 1131. The side plate 1132 includes an outer surface 1133 and an inner surface 1134, and the outer surface 1133 and the inner surface 1134 face away from each other, where it should be noted that the outer surface 1133 refers to a surface of the side plate 1132 located outside the receiving cavity 111; the inner surface 1134 refers to a surface of the side plate 1132 located in the receiving cavity 111. The latch aperture 112 is disposed in the side plate 1132 and extends through the outer surface 1133 and the inner surface 1134, wherein an axis of the latch aperture 112 is substantially perpendicular to the outer surface 1133, and a structural dimension of the latch aperture 112 is adapted to a structure of the latch assembly 120.

In this embodiment, the lock case 110 is provided with a guide groove 1135, wherein the guide groove 1135 is disposed along the axial direction of the latch hole 112, and the guide groove 1135 can be used for guiding the locking mechanism 130. Specifically, the guide groove 1135 is disposed on the surface of the bottom plate 1131 located in the receiving cavity 111, and the guide groove 1135 may be formed by recessing the surface of the bottom plate 1131, wherein the extending direction of the guide groove 1135 is substantially parallel to the axial direction of the latch hole 112, and the lock mechanism 130 can slide along the axial direction of the latch hole 112 by disposing the guide groove 1135. In some embodiments, the guide groove 1135 may also be provided in the form of a guide hole, in which case the guide hole penetrates the bottom plate 1131.

Referring to fig. 3, in the present embodiment, a mounting hole 1136 is formed in the bottom plate 1131, and the mounting hole 1136 penetrates through the bottom plate 1131, wherein the mounting hole 1136 can be used for assembling a dial sleeve, a door handle, and the like, wherein the dial sleeve can be used for connecting with a door handle or a door lock knob switch. In this embodiment, the number of the mounting holes 1136 is two, wherein two of the mounting holes 1136 are spaced apart along the length direction of the bottom plate 1131, and the length direction refers to a direction in which the bottom plate 1131 is substantially perpendicular to the axis of the latch bolt hole 112. The line connecting the centers of the two mounting holes 1136 is substantially perpendicular to the axis of the latch hole 112.

In addition, in this embodiment, the bottom plate 1131 is further provided with a commutating hole 1137, and the commutating hole 1137 penetrates through the bottom plate 1131, wherein the commutating hole 1127 may be a rectangular hole, a kidney-shaped hole, or any other shape of hole.

The latch bolt assembly 120 is slidably disposed in the receiving cavity 111 and can selectively extend out of the latch bolt hole 112 or retract into the receiving cavity 111 along an axial direction of the latch bolt hole 112, wherein the sliding direction is the X direction shown in fig. 1. Referring to fig. 4, the latch bolt assembly 120 includes a latch bolt 121 and a latch bolt fixing portion 122, wherein the latch bolt fixing portion 122 is disposed on the lock housing 110 and located in the receiving cavity 111, the latch bolt 121 is rotatably connected to the latch bolt fixing portion 122, and a rotation axis of the latch bolt 121 is substantially perpendicular to an axis of the latch bolt hole 112.

Specifically, in the present embodiment, the latch bolt 121 is slidably disposed on the bottom case 113 along the axial direction of the latch bolt hole 112, the latch bolt 121 has a substantially triangular prism shape, the latch bolt 121 has a latch bolt face 1214, and the latch bolt face 1214 is a surface of the latch bolt 121 that is inclined with respect to the axial direction of the latch bolt hole 112, and when being installed, may collide with the door body. When the latch face 1214 is acted upon by a force in the direction of the latch hole 112 and is not blocked in the direction of the latch hole 112, the latch 121 can slide in the axial direction of the latch hole 112. It will be appreciated that the force applied to the latch face 1214 in the axial direction of the latch bore 112 may be in a direction directly from the force applied to the latch face 121 in the axial direction of the latch bore 112, or may be a component of the force applied in other directions. As an example, as shown in fig. 6, the latch tongue 1211 is inclined with respect to the bottom plate 1131, and the latch tongue 1121 is located on a side of the latch tongue 121 away from the bottom plate 1131, and further, the latch tongue 121 further includes a resisting surface 1212 and a connecting surface 1213, wherein the resisting surface 1212 is substantially perpendicular to and connected to the connecting surface 1213, and the resisting surface 1212 faces the bottom plate 1131 and is substantially parallel to the surface of the bottom plate 1131. The angled tongue surface 1214 is connected to the abutment surface 1212 and the connection surface 1213.

During the movement of the latch bolt 121, at least a portion of the latch bolt face 1214 extends out of the latch bolt hole 112, that is, in the installation and use state, the latch bolt face 1214 does not completely retract into the latch bolt hole 112, and when the latch bolt 121 exits from the lock hole of the door frame to complete the unlocking action, the latch bolt face 1214 only needs to rotate to be substantially parallel to the door frame or to be located in the gap between the door body and the door frame to complete the unlocking action. In addition, in some embodiments, the latch tongue 121 may also have other prismatic structures, for example, the latch tongue 121 may have a quadrangular prism structure, and a corresponding latch tongue surface 1214 is disposed thereon.

Referring to fig. 7, in the present embodiment, the latch 121 is provided with a protrusion 1215, wherein the protrusion 1215 is connected to the connecting surface 1213, and the protrusion 1215 is provided with a hinge hole 1216 for hinge-connecting with the latch fixing portion 122. Specifically, the hinge hole 1216 extends through the protrusion 1215, and an axis of the hinge hole 1216 is substantially perpendicular to an axial direction of the latch hole 112, so that an axis of rotation of the latch 121 is substantially perpendicular to the axial direction of the latch hole 112. In addition, the projection 1215 has a projection surface 1217 distal from the connection surface 1213, wherein the projection surface 1217 is planar and substantially parallel to the connection surface 1213.

In this embodiment, the latch bolt fixing portion 122 is slidably disposed on the lock case 110 along the axial direction of the latch bolt hole 112, and specifically, as shown in fig. 8, the latch bolt fixing portion 122 includes a latch bolt rod 1221 and a blocking portion 1222, wherein the latch bolt rod 1221 is a substantially straight rod-shaped structure.

The latch rod 1221 is rotatably connected to the latch 121 and slidably disposed along the axial direction of the latch hole 112. Specifically, the end of the latch rod 1221 is provided with a matching hinge hole 1223 matching with the hinge hole 1216, wherein the matching hinge hole 1223 penetrates through the latch rod 1221, and the matching hinge hole 1223 is coaxially arranged with the hinge hole 1216. When the latch bolt rod 1221 is assembled with the latch bolt 121, the hinge hole 1216 can be penetrated by the rotation shaft and the hinge hole 1223 can be matched for hinge. Wherein the latch bolt fixing part 122 can be slidably arranged along the axial direction of the latch bolt hole 112 together with the latch bolt 121, so that the latch bolt 121 can partially or completely extend out of the latch bolt hole 112.

The blocking portion 1222 connects to the end of the latch rod 1221 away from the latch 121 and bends relative to the latch rod 1221, and the latch rod 1221 can be matched with the lock case 110 or other structures by the blocking portion 1222 to prevent the latch rod 1221 from rotating or limiting. In addition, in some embodiments, the latch bolt fixing portion 122 may also be provided with other structures, for example, the latch bolt fixing portion 122 may be provided with a plate-shaped structure.

Referring to fig. 5 and 8, in the present embodiment, the latch fixing portion 122 is provided with a first engaging portion 1224, wherein the first engaging portion 1224 includes a slot 1225 disposed on the latch fixing portion 122, specifically, the slot 1225 is disposed on the latch rod 1221, and the slot 1225 penetrates through an edge of the latch rod 1221. The catch 1225 is adapted to cooperate with the locking mechanism 130 to limit rotation of the latch bolt 121.

Further, in this embodiment, the number of the slots 1225 is two, wherein the slots 1225 are respectively disposed on two opposite sides of the oblique-tongue rod 1221. In addition, in other embodiments, the number of the slots 1225 can be adjusted according to actual requirements.

The locking mechanism 130 is disposed in the receiving cavity 111 and is used for selectively limiting the rotation of the latch bolt 121, wherein the rotation of the latch bolt 121 is limited by the rotation of the latch bolt 121 relative to the latch bolt fixing portion 122. Referring to fig. 9, in the present embodiment, the locking mechanism 130 includes a locking member 131 and a pushing block 132, the locking member 131 abuts against the latch tongue 121 and is slidably assembled in the receiving cavity 111, the pushing block 132 is movably assembled in the receiving cavity 111 and selectively abuts against the locking member 131, it should be noted that when the pushing block 132 abuts against the locking member 131, the locking member 131 cannot slide relative to the latch tongue 121, at this time, the protruding surface 1217 abuts against the locking member 131, and the latch tongue 121 cannot rotate due to the latch tongue 121 abutting against the locking member 131.

Specifically, in this embodiment, referring to fig. 9 again, the locking member 131 is a substantially rectangular frame structure, wherein the locking member 131 includes a first board 1311, a second board 1312 and a connecting plate 1314, the first board 1311 and the second board 1312 are disposed opposite to each other, and the connecting plate 1314 is connected between the first board 1311 and the second board 1312. The locking member 131 is provided with a fitting hole 1315, wherein the fitting hole 1315 penetrates the first plate 1311 and the second plate 1312, and an axis of the fitting hole 1315 substantially coincides with an axis of the latch hole 112.

During assembly, as shown in fig. 4 and 8, the latch rod 1221 passes through the assembly hole 1315 and is connected to the latch 121, wherein the latch 121 and the latch rod 1221 can rotate around the axis of the assembly hole 1315 as a rotation center, so that the latch 121 can be reversed. The slot 1225 of the latch rod 1221 is positioned between the first plate 1311 and the second plate 1312. In addition, the first plate 1311 abuts against the latch bolt 121, and it can be understood that the protruding surface 1217 abuts against the first plate 1311, at this time, the abutting surface 1212 is substantially parallel to the axis of the latch bolt hole 112, and an included angle is formed between the latch bolt surface 1211 and the axis of the latch bolt hole 112, and the included angle is smaller than 90.

In addition, referring to fig. 9 again, the locking member 131 is provided with a guide block 1313 engaged with the guide groove 1135, wherein the guide block 1313 is slidably disposed in the guide groove 1135. The guide block 1313 and the guide groove 1135 cooperate with each other to allow the locking member 131 to slide along the axial direction of the latch hole 112, and also to perform a limiting function. In other embodiments, the lock case 110 may be provided with a guiding post, and the locking member 131 may be provided with a guiding slot or a guiding hole for cooperating with the guiding post, which may also serve as a limiting or guiding function.

In this embodiment, referring to fig. 9, the pushing block 132 is slidably disposed on the bottom plate 1131 of the lock housing 110, wherein the sliding direction of the pushing block 132 is substantially perpendicular to the axial direction of the bolt hole 112. The pusher 132 includes a pusher body 1321, wherein the pusher body 1321 has a substantially U-shaped configuration, and the pusher body 1321 has two free ends (not shown) that extend toward the same side of the pusher body 1321 and toward the locking member 131. The pushing block 132 has a second engaging portion 1322 engaged with the first engaging portion 1224, and when the first engaging portion 1224 engages with the second engaging portion 1322, the pushing block 132 abuts against the locking member 131 and the latch fixing portion 122.

Specifically, the second engaging portion 1322 includes two engaging blocks 1323, the two engaging blocks 1323 are disposed at an interval, and are disposed at two free ends, and the two engaging blocks 1323 correspond to the two engaging grooves 1225 of the latch fixing portion 122 and can be inserted into the engaging grooves 1225. When the latch 1323 is engaged in the engaging slot 1225, the pushing block 132 can simultaneously abut against the first plate 1311 and the second plate 1312, so that the locking member 131 cannot move along the axis of the latch hole 112, and at this time, the locking member 131 abuts against the protruding surface 1217 of the latch 121, so that the locking member 131 abuts against the latch 121, and the latch 121 cannot rotate relative to the latch fixing portion 122.

In other embodiments, the first engaging portion 1224 may be configured as a tooth-shaped portion, and the second engaging portion 1322 is configured as a slot structure that is matched with the tooth-shaped portion, so as to also achieve the engagement between the push block 132 and the latch fixing portion 122.

Referring to fig. 4, in the present embodiment, the locking mechanism 130 further includes a restoring member 133 for restoring the pushing block 132, wherein the restoring member 133 is disposed between the pushing block 132 and the locking member 131 and abuts against the pushing block 132 and the locking member 131. Wherein the restoring member 133 may be made of a material having elasticity, such as a spring or rubber.

In some embodiments, the locking member 131 may not be provided, for example, the protrusion 1215 of the latch 121 may be provided with a slot for engaging with the fixture 1322, and when the fixture 1322 is inserted into the slot of the protrusion 1215, the latch 121 may also abut against the pushing block 132, so that the latch 121 cannot rotate relative to the latch fixing portion 122.

In addition, in some embodiments, the locking mechanism 130 further includes a driving portion (not shown), wherein the pushing block 132 is connected to the driving portion and slides under the driving of the driving portion, and selectively abuts against the latch fixing portion 122 and the locking member 131 during the sliding process, where the abutting means that the locking member 131 abuts against the latch fixing portion 122, and at this time, the latch 121 cannot move due to the abutting of the locking member 131 against the latch 121. The driving part can be a motor or a transmission mechanism driven by a mechanical key.

The driving portion may drive the pushing portion 132 to slide between a first position and a second position, where the first position may be an initial position of the pushing block 132, it should be noted that the first position is a position where the pushing block 132 is located when the clamping block 1323 is embedded in the clamping slot 1225, when the pushing block 132 is not stressed, the pushing block 132 may be located at the first position, and at this time, the restoring member 133 is in a free state, it should be noted that the free state is a state where the restoring member 133 is not subjected to an external force, when the pushing block 132 is located at the first position, because the clamping block 1323 is embedded in the clamping slot 1225, the pushing block 132 cannot slide relative to the latch fixing portion 122, and because the pushing block 132 abuts against the latch 121, the latch 121 cannot rotate; the second position is a position where the block 1323 of the push block 132 slides away from the slot 1225, when the push block 132 is acted by the driving force, the push block 132 pushes the restoring member 133 to overcome the elastic force of the restoring member 133, and moves from the first position to the second position, when the push block 132 is at the second position, the push block 132 is not engaged with the latch fixing portion 122, because the push block 132 can move relative to the latch 121, the latch 121 can rotate, and the restoring member 133 is in a compressed state, when the external force acting on the push block 132 disappears, the push block 132 can move from the second position to the first position under the restoring force of the restoring member 133.

Referring to fig. 4 again, the restoring mechanism 140 is disposed in the receiving cavity 111 and resets the latch 121. In this embodiment, the restoring mechanism 140 includes an elastic member 141 and a blocking plate 142, and the elastic member 141 may be made of an elastic material, such as a spring or rubber. In this embodiment, the elastic member 141 is a spring, and the blocking piece 142 has a through hole (not shown), and the structure of the through hole is adapted to the structure of the latch rod 1221.

During assembly, the latch rod 1221 sequentially penetrates through the through hole of the blocking piece 142, the spring and the assembly hole 1315 of the locking piece 131, and then is rotatably connected with the latch 121, and the latch rod 1221 can slide along the axial direction of the latch hole 112; two clamping blocks 1323 extend between the first plate 1311 and the second plate 1312; the pushing block 132 faces the locking member 131, and the two latching blocks 1323 are selectively inserted into the latching slots 1225, and the restoring member 133 is assembled between the locking member 131 and the pushing block 132 and abuts against the locking member 131 and the pushing block 132, respectively. The blocking plate 142 may be fixed to the lock case 110, wherein the blocking plate 142 may block the oblique-tongue rod 1221 from further sliding when the oblique-tongue rod 1221 slides towards the oblique-tongue hole 112 until the blocking portion 122 abuts against the blocking plate 142. The elastic member 141 is sleeved on the latch rod 1221, and one end of the elastic member 141 abuts against the locking member 131.

When the push block 132 is in the first position, the latch tongue 121 is restrained from rotating; when the driving part drives the pushing block 132 to move from the first position to the second position, the locking mechanism 130 releases the limit of the latch tongue 121, at this time, the latch tongue 121 can be driven to rotate when the latch tongue face 1214 is stressed, at this time, during the rotation, one end of the projection 1215 of the latch tongue 121 is separated from the locking piece 131, and the other end supports on the locking piece 131 and presses against the locking piece 131, so that the latch tongue 121 can push the locking piece 131 to slide, and meanwhile, the locking piece 131 pushes the elastic piece 141 to be compressed during the sliding process, and the locking piece 131 always abuts against the latch tongue 121 due to the resilience force of the elastic piece 141; when the latch tongue 121 is rotated to a certain angle, for example: when the inclined tongue 121 rotates to the angle of 45 ° formed between the protruding surface 1217 and the first plate 1311 of the locking member 131 and the acting force acting on the inclined tongue 121 disappears, the locking member 131 is under the action of the resilience force of the elastic member 141, because only one end of the protrusion 1215 abuts against the locking member 131, the other end of the protrusion 1215 is separated from the locking member 131, and the end of the protrusion 1215 abutting against the locking member 131 is stressed, so that the protrusion 1215 is subjected to the reverse turning force, and the inclined tongue 121 reversely rotates to the protruding surface 1217 to abut against the first plate 1311.

In other embodiments, one end of the elastic element 141 may abut against the second plate 1312, and the other end is fixed to the lock case 110, i.e. the blocking piece 142 may not be provided.

In some applications, the door lock 100 is installed inside a door body, wherein the latch tongue surface 1211 of the latch tongue 121 is exposed outside the door body and faces outdoors, and the stop surface 1212 of the latch tongue 121 faces indoors. For example, when the door lock 100 is closed, the locking mechanism 130 does not limit the rotation of the latch bolt 121, during the closing process, the latch bolt face 1211 abuts against the door frame and receives the force of the door frame, so that the latch bolt 121 can rotate relative to the latch bolt fixing portion 122, furthermore, the latch bolt 121 receives the force along the axial direction of the latch bolt hole 112, the latch bolt 121 can partially retract into the latch bolt hole 112, and the latch bolt 121 can slide into the latch bolt hole on the door frame during the rotation process; for example, when locking is performed, the rotation of the latch bolt 121 can be restricted by the locking mechanism 130, and at this time, the abutting surface 1212 of the latch bolt 121 abuts against and is parallel to the inner surface of the door frame, and the latch bolt 121 is locked by the locking mechanism 130, so that the latch bolt 121 cannot rotate. For example, when unlocking, the lock mechanism 130 can release the limit of the latch bolt 121, so that the latch bolt 121 can rotate, when a user pushes the door, the latch bolt face 1214 is abutted against the door frame, at this time, the latch bolt face 1214 is stressed to rotate the latch bolt 121, when the user opens the door, the latch bolt 121 is simultaneously applied with an acting force along the direction of the latch bolt hole 112, so that the latch bolt 121 can partially retract into the latch bolt hole 112, but the latch bolt 121 does not need to be completely retracted into the latch bolt hole 112, so as to reduce the sliding stroke of the latch bolt 121, and when the latch bolt face 1214 rotates to be approximately parallel to the door frame, the latch bolt 121 slides away from the lock hole of the door frame, so as to realize unlocking. In some application environments, a certain gap is formed between the door body and the door frame, when the latch bolt 121 rotates to a certain angle, and the latch bolt face 1211 can rotate to be approximately parallel to the surface of the door frame, the latch bolt 121 can slide away from the lock hole of the door frame through rotation, and then unlocking is achieved.

By rotatably connecting the latch bolt 121 to the latch bolt fixing portion 122 and releasing the limit of the latch bolt 121 through the locking mechanism 130, when a user pushes or pulls the door, the latch bolt 121 can be unlocked by rotating and sliding away from the lock hole of the door lock, the latch bolt 121 is rotatably matched with the extension of the latch bolt fixing portion 122, the axial sliding stroke of the whole latch bolt assembly 120 along the latch bolt hole 112 is shorter when the door is unlocked, and the door is unlocked in a shorter stroke, so that the rotating stroke of the user when using the door handle to rotate can be shorter, the extension stroke of the latch bolt 121 can be reduced, and quick unlocking can be realized.

In this embodiment, the latch bolt fixing portion 122 is rotatably disposed in the lock housing 110, and the latch bolt 121 is driven to rotate by rotating the latch bolt fixing portion 122, so that the direction of the latch bolt 121 can be changed, and the latch bolt can be adapted to different door opening directions. Wherein, the reversing means that the door is pushed to open or pulled to open. It will be appreciated that the latch face 1211 needs to face in different directions when the door is opened in different directions.

Referring to fig. 1 again, in the present embodiment, the door lock 100 further includes a limiting mechanism 150 disposed in the lock case 110, wherein the limiting mechanism 150 is used for limiting the rotation of the latch bolt fixing portion 122, it should be noted that the limiting mechanism 150 can be used for limiting the rotation of the latch bolt fixing portion 122 along the axis of the latch bolt hole 112, and when the latch bolt 121 does not need to be reversed, the rotation of the latch bolt fixing portion can be limited by the limiting mechanism 150.

Specifically, as shown in fig. 10, in the present embodiment, the limiting mechanism 150 includes a commutator segment 151, the commutator segment 151 is disposed in the lock housing 110, the commutator segment 151 is provided with a first locking pin 1511 and a second locking pin 1512, wherein the first locking pin 1511 and the second locking pin 1512 are bent toward the same side of the commutator segment 151, and form a locking gap 1513 for locking the latch rod 1221.

When the latch tongue 121 does not need to be reversed, the latch tongue rod 1221 can be clamped into the clamping gap 1513, wherein the blocking piece 142 abuts against the first blocking leg 1511 and the second blocking leg 1512, and the elastic piece 141 is fixed between the locking piece 131 and the blocking piece 142. In addition, the blocking portion 1222 abuts against the commutator segment 151, when the blocking portion 1222 abuts against the commutator segment 151, the latch fixing portion 122 is blocked by the first locking leg 1511 and the second locking leg 1512 and cannot rotate, and meanwhile, the blocking portion 1222 can abut against the first locking leg 1511 and the second locking leg 1512, so as to limit the sliding distance of the latch rod 1221 along the axial direction of the latch hole 112; when the latch bolt 121 needs to be reversed, the reversing piece 151 can be separated from the latch bolt fixing portion 122, and at this time, the latch bolt fixing portion 122 can rotate because the latch bolt fixing portion 122 is not blocked by the first clamping leg 1511 and the second clamping leg 1512, thereby realizing the reversing.

As an example, the commutator segment 151 may be rotatably disposed on the bottom case 113, for example: the commutator segment 151 can rotate at a first rotation position and a second rotation position, when the commutator segment 151 is at the first rotation position, the oblique tongue rod 1221 can be clamped into the clamping gap 1513, and the blocking portion 1222 is abutted against the commutator segment 151; when the direction changing piece 151 rotates from the first rotational position to the second rotational position, as shown in fig. 11 (the direction changing piece 151 is at the second rotational position), at this time, the direction changing piece 151 is away from the latch rod 1221, so that the latch rod 1221 is disengaged from the engaging gap 1513, since the blocking portion 1222 is not abutted against the direction changing piece 151, the user can pull the latch 121 out of the latch hole 112 completely to rotate, and by rotating the latch 121 and driving the latch rod 1221 to rotate with the axis of the mounting hole 1315 as the rotation center, the latch face 1214 of the latch 121 is changed, for example, when the latch 121 rotates 180 degrees, the latch face 1211 of the latch 121 can face in the opposite direction, thereby adapting to the opening directions of different doors. In addition, in some embodiments, as shown in fig. 10, the segments 151 are further provided with a diverter block 1514, wherein the diverter block 1514 is connected to the segments 151 and is inserted into a diverter hole 1137 in the base plate 1131 toward the base plate 1131, or the diverter block 1514 may extend out of the diverter hole 1137 for easy operation by a user outside the lock housing 110. The latch bolt fixing portion 122 can be selectively locked into the locking gap 1513 or separated from the locking gap 1513 by the user through rotating the toggle block 1514.

In addition, in some embodiments, the commutator segment 151 may also be directly fixed to the bottom case 113.

In this embodiment, the locking mechanism 130 further includes a pulling plate assembly 134 and a driving mechanism 135, wherein the driving mechanism 135 is used for driving the pulling plate assembly 134, and the pulling plate assembly 134 can selectively drive the pushing block 132 to move. The pulling plate 134 is disposed in the receiving cavity 111, and the pulling plate 134 is slidably disposed on the bottom plate 1131.

Specifically, referring to fig. 11, in the present embodiment, the pulling plate assembly 134 includes a first pulling plate 1341 and a second pulling plate 1342, wherein the first pulling plate 1341 is slidably disposed on the bottom plate 1131, a sliding direction of the first pulling plate 1341 is substantially perpendicular to an axial direction of the latch hole 112, and the first pulling plate 1341 selectively abuts against the pushing block 132 in a sliding process, so as to push the pushing block 132 to move from the first position to the second position; the second pulling plate 1342 is slidably stacked on the first pulling plate 1341, and the sliding direction of the second pulling plate 1342 is substantially the same as the sliding direction of the first pulling plate 1341.

Referring to fig. 12 and 13, in the present embodiment, the first pulling plate 1341 is provided with a sliding groove 1343, and the sliding groove 1343 is disposed on a surface of the first pulling plate 1341 facing the second pulling plate 1342, wherein the sliding groove 1343 is in a shape of a long bar; the surface of the second pulling plate 1342 facing the first pulling plate 1341 is provided with a sliding post (not shown) which is engaged with the sliding slot 1343, wherein the sliding post is slidably disposed in the sliding slot 1343. When the second pulling plate 1342 slides, the sliding column slides along the sliding slot 1343 for a certain distance and then slides to abut against the first pulling plate 1341, and at this time, the second pulling plate 1342 can drive the first pulling plate 1341 to move together toward the pushing block 132.

In addition, in this embodiment, the first pulling plate 1341 is provided with a first guiding hole 1344, wherein the first guiding hole 1344 penetrates through the first pulling plate 1341; the second pulling plate 1342 is provided with a second guiding hole 1345, wherein the second guiding hole 1345 penetrates the second pulling plate 1342, and the first guiding hole 1344 is matched with the second guiding hole 1345.

In some embodiments, only a first tab 1341 or a second tab 1342 may be provided.

In this embodiment, the lock housing 110 further comprises a guide mechanism 115, wherein the guide mechanism 115 is used to guide the pull plate assembly 134. Specifically, the guiding mechanism 115 includes a guiding post (not shown), wherein the guiding post is connected to the bottom plate 1131, and the guiding post is movably disposed through the first guiding hole 1344 and the second guiding hole 1345, so that the first pulling plate 1341 and the second pulling plate 1342 can slide along a direction substantially perpendicular to the axial direction of the latch hole 112. In addition, the guiding posts can also be used for limiting to limit the sliding position of the first pulling plate 1341 and the second pulling plate 1342.

In this embodiment, the driving mechanism 135 further includes a shifting fork 1352 and a shifting sleeve 1351, wherein the shifting fork 1352 is rotatably mounted on one of the mounting holes 1136 and is in transmission engagement with the first pulling plate 1341, wherein the shifting fork 1352 can rotate around an axis of the mounting hole 1136, and during the rotation, the shifting fork 1352 can shift the first pulling plate 1341 to move toward the pushing block 132, so that the first pulling plate 1341 pushes the pushing block 132 to move from the first position to the second position, and the locking mechanism 120 releases the limitation on the latch 121. The shifting fork 1352 can be used for being connected with a door handle, and when the door wrench is rotated, the shifting fork 1352 can be driven to rotate.

The shifting sleeve 1351 is rotatably mounted in the other mounting hole 1136 and is in transmission fit with the second pulling plate 1342, wherein the shifting sleeve 1351 can rotate around the axis of the mounting hole 1136, and in the rotating process, the shifting sleeve can shift the second pulling plate 1342 to move toward the pushing block 132, and when the sliding column of the second pulling plate 1342 slides to abut against the first pulling plate 1341, the first pulling plate 1341 can drive the second pulling plate 1342 to move together toward the pushing block 132, so that the second pulling plate 1342 and the pushing block 132 move from the first position toward the second position, and the locking mechanism 120 further releases the restriction on the inclined tongue 121. The dial sleeve may be in driving connection with a drive unit (e.g., a motor) of the door lock 100, or may be in driving connection with a drive mechanism driven by a mechanical key. When the door is opened by using the key, the transmission mechanism in transmission fit with the key can drive the first pull plate 1341 or the second pull plate 1342 to slide, the push block 132 slides towards the second position in the sliding process of the pull plate assembly 134, so that the locking mechanism 120 releases the limit of the latch bolt 121, the latch bolt 121 is enabled to be rotationally matched with the extension and retraction of the latch bolt fixing part 122, the stroke of the whole latch bolt assembly 120 along the latch bolt hole 112 is shorter during unlocking, the unlocking is realized in a shorter stroke, and the rotating stroke of a user during rotating by using the key can be shorter.

Further, in some embodiments, the fork 1352 and the sleeve 1351 may be in driving engagement with either the first pull plate 1341 or the second pull plate 1342 simultaneously.

In summary, in the door lock 100 provided in the present embodiment, the latch bolt 121 is rotatably connected to the latch bolt fixing portion 122, when the door lock 100 is unlocked, the limit of the latch bolt 121 by the locking mechanism 130 is released, and when the door body is pushed, the latch bolt 121 is rotated under the action of the door frame, so that the latch bolt 121 can be quickly slid away from the lock hole of the door frame, and meanwhile, the latch bolt 121 does not need to be completely retracted into the latch bolt hole 112, so that the sliding stroke of the latch bolt 121 can be reduced, and quick unlocking is achieved.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (13)

1. A door lock, comprising:

the lock shell is provided with an accommodating cavity, and the lock shell is provided with a lock tongue hole communicated with the accommodating cavity;

the oblique tongue assembly comprises an oblique tongue fixing part and an oblique tongue, the oblique tongue fixing part is arranged in the lock shell and is positioned in the accommodating cavity, the oblique tongue is rotationally connected to the oblique tongue fixing part, the rotation axis of the oblique tongue is perpendicular to the axis of the lock tongue hole, the oblique tongue is provided with an oblique tongue surface, at least part of the oblique tongue surface extends out of the lock tongue hole, and the oblique tongue is driven to rotate when the oblique tongue surface is stressed;

the locking mechanism is arranged in the accommodating cavity and is used for selectively limiting the rotation of the latch bolt; and

and the restoring mechanism is arranged in the accommodating cavity and is used for restoring the latch bolt.

2. The door lock of claim 1, wherein the latch bolt fixing portion is slidably disposed on the lock housing along an axial direction of the latch bolt hole, the locking mechanism includes a locking member and a pushing member, the locking member abuts against the latch bolt and is slidably disposed in the receiving cavity, and the pushing member is movably disposed in the receiving cavity and selectively abuts against the locking member.

3. The door lock of claim 2, wherein the locking mechanism further comprises a driving portion, and the push block is connected to and slides under the driving of the driving portion, and selectively stops against the latch fixing portion and the locking member during the sliding process.

4. The door lock of claim 2, wherein the locking mechanism further comprises a return for returning the push block.

5. The door lock according to claim 2, wherein the locking member is slidably fitted to the latch bolt fixing portion in an axial direction of the latch bolt hole, the latch bolt fixing portion is provided with a first engaging portion, the push block is provided with a second engaging portion engaged with the first engaging portion, and the push block abuts against the locking member and the latch bolt fixing portion when the first engaging portion is engaged with the second engaging portion.

6. A door lock according to claim 5, wherein the housing is provided with a guide groove arranged in the axial direction of the bolt hole, and the locking member is provided with a guide block engaged with the guide groove, the guide block being slidably arranged in the guide groove.

7. The door lock according to claim 5, wherein the locking member comprises a first plate and a second plate, the first plate and the second plate are disposed opposite to each other, the first plate abuts against the latch bolt, the locking member is provided with an assembly hole, the assembly hole penetrates through the first plate and the second plate, the latch bolt fixing portion penetrates through the assembly hole and is connected with the latch bolt, the first engaging portion is located between the first plate and the second plate, and when the second engaging portion engages with the first engaging portion, the push block abuts against the first plate and the second plate.

8. A door lock according to claim 7, wherein the return mechanism comprises a resilient member having one end abutting the second plate and the other end secured to the housing.

9. The door lock of claim 5, wherein the first engaging portion includes a slot formed in the latch fixing portion, the second engaging portion includes a latch formed in the push block, and the latch is selectively inserted into the slot during the sliding of the push block.

10. The door lock of claim 2, wherein the locking mechanism further comprises a pull plate assembly and a driving mechanism for driving the pull plate assembly, the pull plate assembly selectively drives the push block to move and is assembled in the accommodating cavity.

11. The door lock of claim 10, wherein the lock housing further comprises a guide mechanism for guiding the pull plate assembly.

12. The door lock of claim 1, wherein the latch bolt securing portion is rotatably mounted to the housing along an axis of the latch bolt opening, the door lock further comprising a limiting mechanism disposed within the housing for limiting rotation of the latch bolt securing portion.

13. The door lock of claim 12, wherein the latch bolt fixing portion includes a latch bolt rod and a blocking portion, the latch bolt rod is rotatably connected to the latch bolt and slidably disposed along an axial direction of the latch bolt hole, the blocking portion is connected to an end portion of the latch bolt rod away from the latch bolt and bent relative to the latch bolt rod, and the limiting mechanism includes a direction-changing piece, and the direction-changing piece is disposed in the lock housing and abuts against the blocking portion.

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