CN110359769B - Door lock - Google Patents

Abstract

The embodiment of the application provides a door lock, which comprises a lock shell, a latch assembly, a locking mechanism and a restoring mechanism, wherein the lock shell is provided with a containing cavity, the lock shell is provided with a latch hole communicated with the containing cavity, the latch assembly comprises a latch fixing part and a latch, the latch is rotationally connected to the latch fixing part, the rotation axis of the latch is mutually perpendicular to the latch hole, the latch is provided with a latch face, at least part of the latch face extends out of the latch hole and drives the latch to rotate when the latch face is stressed, and the locking mechanism can selectively limit the latch to rotate and is used for resetting the latch. When the door lock provided by the embodiment of the application is unlocked, the limit of the inclined tongue by the locking mechanism can be released, and the inclined tongue rotates when the inclined tongue surface is stressed, so that the inclined tongue slides away from the lock hole of the door frame, the sliding stroke of the inclined tongue is reduced, and further, the quick unlocking is realized.

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 technology, the lock is more and more popular in living, and current majority lock includes lock shell and spring bolt, and the spring bolt stretches out and draws back to 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 is realized unblanking or locking through the expansion of spring bolt, in long-term use, and the spring bolt makes a round trip to stretch back and forth the spring bolt and leads to the dead phenomenon of spring bolt appearance easily, in addition, is unfavorable for realizing quick unlocking.

Disclosure of Invention

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

The embodiment of the application provides a latch bolt assembly, which comprises a lock shell, a latch bolt assembly, a locking mechanism and a restoring mechanism, wherein the lock shell is provided with a containing cavity, the lock shell is provided with a latch bolt hole communicated with the containing cavity, the latch bolt assembly comprises a latch bolt fixing part and a latch bolt, the latch bolt fixing part is arranged in the lock shell and is positioned in the containing cavity, the latch bolt is rotationally connected with the latch bolt fixing part, the rotation axis of the latch bolt is mutually perpendicular to the axis of the latch bolt hole, the latch bolt is provided with a latch bolt surface, at least part of the latch bolt surface extends out of the latch bolt hole and drives the latch bolt to rotate when the latch bolt surface is stressed, and the locking mechanism is arranged in the containing cavity and is used for selectively limiting the rotation of the latch bolt and is arranged in the containing cavity and used for resetting the latch bolt.

Compared with the prior art, the door lock provided by the application has the advantages that the inclined tongue is rotationally connected to the inclined tongue fixing part, when the door lock is unlocked, the limit on the inclined tongue is released through the locking mechanism, the inclined tongue is driven to rotate when the inclined tongue surface of the inclined tongue is stressed, and the inclined tongue slides out of the lock hole of the door frame through the rotation of the inclined tongue, so that the door lock is unlocked rapidly.

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

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an assembly structure of a door lock according to an embodiment of the present application;

fig. 2 is a schematic diagram illustrating the structural disassembly of a door lock according to an embodiment of the present application;

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

FIG. 4 is a schematic diagram of a detachment structure of a latch assembly, a locking mechanism, and a return mechanism according to an embodiment of the present application;

FIG. 5 is a schematic view showing a split structure of a latch assembly according to an embodiment of the present application;

FIG. 6 is a schematic view of a tongue in a first view according to an embodiment of the present application;

FIG. 7 is a schematic view of a tongue in a second view according to an embodiment of the present application;

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

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

Fig. 10 is a schematic structural view of a segment according to an embodiment of the present application;

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

FIG. 12 is a schematic view of a first pull plate according to an embodiment of the present application;

fig. 13 is a schematic structural view of a second pull plate according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

When a plurality of door locks are unlocked, the lock tongue needs to be completely retracted into the lock shell to completely slide away from the lock hole of the door frame, so that unlocking is realized, the lock tongue is easy to block after multiple times of back and forth expansion, the problem that the lock tongue cannot extend out of the lock tongue hole again is possibly caused, meanwhile, the long-term use of a mechanism for driving the lock tongue to expand and contract is also not facilitated, and in addition, the quick unlocking is also not facilitated. Therefore, the inventor proposes a 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 assembly 120, a locking mechanism 130, and a restoring mechanism 140, wherein the latch assembly 120 is movably disposed in the lock housing 110, and the locking mechanism 130 and the restoring mechanism 140 are disposed in the lock housing 110.

Referring to fig. 2, the lock case 110 has a receiving cavity 111, and the lock case 110 is provided with a latch hole 112 in communication with the receiving cavity 111, wherein the latch hole 112 allows the latch to retract and rotate. Specifically, the lock housing 110 includes a bottom case 113 and a cover plate (not shown in the drawings) detachably assembled to the bottom case 113 and used for closing the accommodating cavity 111, wherein the structure of the cover plate is adapted to the structure 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 is disposed around the edge of the bottom plate 1131 and forms the accommodating cavity 111, and it is understood that the accommodating 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 accommodating cavity 111; inner surface 1134 refers to the surface of side plate 1132 that is located within receiving cavity 111. The latch hole 112 is disposed on the side plate 1132 and penetrates through the outer surface 1133 and the inner surface 1134, wherein an axis of the latch hole 112 is substantially perpendicular to the outer surface 1133, and a structural dimension of the latch hole 112 is adapted to a structure of the latch assembly 120.

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

Referring to fig. 3, in the present embodiment, a bottom plate 1131 is provided with a mounting hole 1136, and the mounting hole 1136 penetrates through the bottom plate 1131, wherein the mounting hole 1136 can be used for installing allocate sets, door handles, and other structures, and 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 the two mounting holes 1136 are spaced along the length direction of the bottom plate 1131, and it should be noted that the length direction refers to the direction in which the axis of the bottom plate 1131 and the latch bolt hole 112 is substantially perpendicular. The line connecting the centers of the two mounting holes 1136 is substantially perpendicular to the axis of the latch bolt hole 112.

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

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

Specifically, in the present embodiment, the latch 121 is slidably disposed on the bottom case 113 along the axial direction of the latch hole 112, the latch 121 has a generally triangular prism structure, the latch 121 has a latch surface 1211, and the latch surface 1211 refers to a surface of the latch 121 inclined with respect to the axial direction of the latch hole 112, and can collide with the door body when mounted. When the tongue surface 1211 is subjected to a force in the direction of the tongue hole 112 and is not blocked in the direction of the tongue hole 112, the tongue 121 can slide in the axial direction of the tongue hole 112. It will be appreciated that the force applied by the tongue surface 1211 in the axial direction of the tongue aperture 112 may be directed from the force applied to the tongue surface 1211 in the axial direction of the tongue aperture 112, or may be a component of the force applied in other directions. As an example, as shown in fig. 6, tongue surface 1211 is inclined relative to base plate 1131, and tongue surface 1211 is located on a side of tongue 121 remote from base plate 1131, and further, tongue 121 further includes a abutment surface 1212 and a connection surface 1213, wherein abutment surface 1212 is substantially perpendicular to and interconnects connection surface 1213, and abutment surface 1212 faces base plate 1131 and is substantially parallel to the surface of base plate 1131. The tongue 1211 is connected to the abutment surface 1212 and the connection surface 1213.

During the movement of the latch 121, at least a portion of the latch surface 1211 extends out of the latch hole 112, i.e., in the installed state, the latch surface 1211 does not fully retract into the latch hole 112, and when the latch 121 is retracted out of the lock hole of the door frame to complete the unlocking operation, the latch surface 1211 only needs to be rotated to be approximately parallel to the door frame or to be located in a gap between the door body and the door frame to complete the unlocking operation. In addition, in some embodiments, the latch 121 may also be other prismatic structures, for example, the latch 121 may be a quadrangular prismatic structure, on which the corresponding latch surface 1211 is disposed.

Referring to fig. 7, in the present embodiment, the tongue 121 is provided with a protrusion 1215, wherein the protrusion 1215 is connected to the connection surface 1213, and the protrusion 1215 is provided with a hinge hole 1216, and the hinge hole 1216 is used for hinging with the tongue fixing portion 122. Specifically, the hinge hole 1216 penetrates the projection 1215, and the axis of the hinge hole 1216 is substantially perpendicular to the axial direction of the tongue hole 112, so that the axis of rotation of the tongue 121 is substantially perpendicular to the axial direction of the tongue hole 112. Further, the protrusion 1215 has a protrusion surface 1217 remote from the connection surface 1213, wherein the protrusion surface 1217 is planar and substantially parallel to the connection surface 1213.

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

The latch rod 1221 is rotatably connected to the latch 121 and slidably disposed along the axial direction of the latch bolt hole 112. Specifically, the end of the tongue shaft 1221 is provided with a mating hinge hole 1223 mating with the hinge hole 1216, wherein the mating hinge hole 1223 penetrates the tongue shaft 1221, and the mating hinge hole 1223 is coaxially disposed with the hinge hole 1216. When the latch rod 1221 is assembled with the latch 121, the hinge hole 1216 and the mating hinge hole 1223 are penetrated by the rotation shaft to hinge. Wherein the latch bolt fixing portion 122 is slidably disposed along the axial direction of the latch bolt hole 112 together with the latch bolt 121 so that the latch bolt 121 may partially or completely protrude out of the latch bolt hole 112.

The blocking portion 1222 is connected to an end of the latch rod 1221 away from the latch 121 and is bent relative to the latch rod 1221, and the latch rod 1221 can be engaged with the lock case 110 or other structure to prevent the latch rod 1221 from rotating or limiting by providing the blocking portion 1222. In addition, in some embodiments, the tongue fixing portion 122 may be provided with other structures, for example, the tongue fixing portion 122 may be provided in a plate-like structure.

Referring to fig. 5 and 8 together, 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 in the latch fixing portion 122, and specifically, the slot 1225 is disposed in 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 121.

Further, in the present embodiment, the number of the clamping grooves 1225 is two, wherein the clamping grooves 1225 are respectively disposed on two opposite sides of the inclined tongue rod 1221. In addition, in other embodiments, the number of the slots 1225 may be adjusted according to the actual requirements.

The locking mechanism 130 is disposed in the accommodating cavity 111 and is used for selectively limiting rotation of the latch 121, wherein limiting rotation of the latch 121 refers to limiting rotation of the latch 121 relative to the latch 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 121 and is slidably mounted in the accommodating cavity 111, the pushing block 132 is movably mounted in the accommodating cavity 111 and selectively abuts against the locking member 131, and 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 121, and at this time, the protruding surface 1217 abuts against the locking member 131, and the latch 121 cannot rotate due to the abutment of the latch 121 and the latch 131.

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

When assembled, as shown in fig. 4 and 8, the latch rod 1221 is connected to the latch 121 through the assembly hole 1315, wherein the latch 121 and the latch rod 1221 can rotate about the axis of the assembly hole 1315 as a rotation center, so that the latch 121 can be reversed. The catch 1225 of the tongue bar 1221 is located between the first plate 1311 and the second plate 1312. In addition, the first plate 1311 abuts against the latch bolt 121, and it is understood that the protruding surface 1217 abuts against the first plate 1311, at this time, the resisting 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 guiding block 1313 matching with the guiding groove 1135, wherein the guiding block 1313 is slidably disposed in the guiding groove 1135. The guide block 1313 and the guide groove 1135 cooperate with each other, so that the locking member 131 can slide along the axial direction of the latch bolt hole 112, and in addition, the limiting function can be achieved. In other embodiments, the lock housing 110 may be provided with a guide post, and the locking member 131 may be provided with a guide groove or a guide hole that cooperates with the guide post, and may also serve as a stop or guide.

In this embodiment, referring to fig. 9, the push block 132 is slidably disposed on the bottom plate 1131 of the lock housing 110, wherein the sliding direction of the push block 132 can be substantially perpendicular to the axial direction of the latch hole 112. The push block 132 includes a push block body 1321, wherein the push block body 1321 has a substantially U-shaped structure, and the push block body 1321 has two free ends (not shown in the figure), and both of the free ends extend toward the same side of the push block body 1321 and toward the locking member 131. The push block 132 is provided with 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 push block 132 abuts against the locking member 131 and the tongue fixing portion 122.

Specifically, the second engaging portion 1322 includes two clamping blocks 1323, where the number of the clamping blocks 1323 is two, the two clamping blocks 1323 are disposed at opposite intervals, and are respectively disposed at two free ends, and the two clamping blocks 1323 respectively correspond to the two clamping grooves 1225 of the inclined tongue fixing portion 122 and can be embedded into the clamping grooves 1225. When the clamping block 1323 is clamped into the clamping groove 1225, the pushing block 132 can simultaneously abut against the first plate body 1311 and the second plate body 1312, so that the locking member 131 cannot move along the axial direction of the latch hole 112, at this time, the locking member 131 is attached to the protruding surface 1217 of the latch 121, so that the locking member 131 and the latch 121 abut against each other, and the latch 121 cannot rotate relative to the latch fixing portion 122.

In other embodiments, the first engaging portion 1224 may be provided in a latch shape, and the second engaging portion 1322 may be provided in a slot structure matching with the latch, so that the push block 132 may be engaged with 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 push block 132, wherein the restoring member 133 is disposed between the push block 132 and the locking member 131 and abuts against the push block 132 and the locking member 131. Wherein the return 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 protruding portion 1215 of the latch 121 may be provided with a slot that mates with the latch 1322, and when the latch 1322 is snapped into the slot of the protruding portion 1215, the latch 121 may also abut against the push 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 in the drawings), where the pushing block 132 is connected to the driving portion and slides under the driving force of the driving portion, and selectively abuts against the latch fixing portion 122 and the locking member 131 during the sliding process, it should be noted that the abutment refers to that the locking member 131 abuts against the latch fixing portion 122, and at this time, the latch 121 cannot move due to the abutment of the locking member 131 against the latch 121. The driving part can be a motor or a transmission mechanism which is driven by a mechanical key.

The driving portion may drive the pushing member 132 to slide between a first position and a second position, where the first position may be an initial position of the pushing member 132, where the first position is a position where the pushing member 132 is located when the clamping block 1323 is embedded in the clamping slot 1225, when the pushing member 132 is not stressed, the pushing member 132 may be in the first position, and the restoring member 133 is in a free state, where the free state is a state where the restoring member 133 is not acted by an external force, and when the pushing member 132 is in the first position, the pushing member 132 cannot slide relative to the latch fixing portion 122 due to the clamping block 1323 being embedded in the clamping slot 1225, and the latch 121 cannot rotate due to the abutting of the pushing member 132 and the latch 121; the second position refers to a position where the clamping block 1323 of the push block 132 slides away from the clamping groove 1225, when the push block 132 receives a driving force, the push block 132 pushes the return piece 133, overcomes the elastic force of the return piece 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, and the latch 121 can rotate due to the fact that the push block 132 can move relative to the latch 121, and when the external force acting on the push block 132 disappears, the return piece 133 can move from the second position to the first position under the action of the restoring force of the return piece 133.

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

When assembled, the latch rod 1221 sequentially penetrates through the through hole of the through baffle plate 142, the spring and the assembly hole 1315 of the locking piece 131, and then is rotationally connected with the latch 121, and the latch rod 1221 can slide along the axial direction of the latch hole 112; wherein 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 locking blocks 1323 can be selectively inserted into the locking grooves 1225, and the restoring member 133 is assembled between the locking member 131 and the pushing block 132 and respectively abuts against the locking member 131 and the pushing block 132. The baffle plate 142 may be fixed to the lock housing 110, wherein the baffle plate 142 may block the latch rod 1221 from further sliding when the latch rod 1221 slides toward the latch hole 112 until the blocking portion 122 abuts against the baffle plate 142. By sleeving the elastic member 141 on the latch rod 1221, 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 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 on the inclined tongue 121, at this time, when the inclined tongue surface 1211 is stressed, the inclined tongue 121 can be driven to rotate, at this time, during the rotation, one end of the protruding part 1215 of the inclined tongue 121 is separated from the locking piece 131, and the other end is supported on the locking piece 131 and presses the locking piece 131, so that the inclined tongue 121 can push the locking piece 131 to slide, and meanwhile, the locking piece 131 pushes the elastic piece 141 to be compressed in the sliding process, and the locking piece 131 is always abutted against the inclined tongue 121 due to the resilience of the elastic piece 141; when the latch 121 is rotated to a certain angle, for example: when the included angle formed between the protrusion surface 1217 and the first plate 1311 of the locking member 131 is 45 ° and the force acting on the latch 121 disappears, the locking member 131 is separated from the locking member 131 due to the fact that only one end of the protrusion 1215 abuts against the locking member 131 under the resilience force of the elastic member 141, and one end of the protrusion 1215 abuts against the locking member 131, so that the protrusion 1215 is subjected to the opposite steering force, and the latch 121 reversely rotates until the protrusion surface 1217 abuts against the first plate 1311.

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

In some applications, the door lock 100 is installed in a door body with the tongue face 1211 of the tongue 121 exposed outside the door body and facing outdoors and the abutment face 1212 of the tongue 121 facing indoors. For example, when the door lock 100 is closed, the locking mechanism 130 does not limit the rotation of the latch 121, and during the closing process, the latch surface 1211 abuts against the door frame and is acted by the door frame, so that the latch 121 can rotate relative to the latch fixing portion 122, in addition, the latch 121 is acted by the force along the axial direction of the latch bolt hole 112, the latch 121 can be partially retracted into the latch bolt hole 112, and the latch 121 can slide into the latch hole on the door frame during the rotation process; for example, when locking is performed, the rotation of the latch 121 can be restricted by the locking mechanism 130, and at this time, the abutment surface 1212 of the latch 121 is parallel to and abuts against the inner side surface in the door frame, and the latch 121 is locked by the locking mechanism 130, so that the latch 121 cannot rotate. For example, when unlocking, the locking mechanism 130 can be used for releasing the limit of the latch 121, so that the latch 121 can rotate, when a user pushes the door, the latch 1211 is propped against the door frame, at this time, the latch 1211 is stressed to rotate the latch 121, and in the door opening process, the latch 121 can partially retract into the latch hole 112 due to the fact that the latch 121 is simultaneously stressed along the direction of the latch hole 112, but the latch 121 does not need to completely retract into the latch hole 112, so that the sliding stroke of the latch 121 is reduced, and when the latch 1211 rotates to be approximately parallel to the door frame, the latch 121 slides out of the lock hole of the door frame, so that unlocking is realized. In some application environments, a certain gap is formed between the door body and the door frame, when the latch 121 rotates to a certain angle, the latch surface 1211 can rotate to be approximately parallel to the surface of the door frame, and the latch 121 can slide out of the lock hole of the door frame through rotation, so that unlocking is realized.

Through rotationally connecting the latch 121 to the latch fixing portion 122, and remove the restriction to the latch 121 through locking mechanism 130, when the user pushes away the door or pulls away the door, the latch 121 can realize unblanking through rotating and sliding away the lockhole of lock, the extension of latch 121 normal running fit latch fixing portion 122, whole latch subassembly 120 is shorter along the stroke of latch hole 112 axial sliding when unblanking, realize unblanking in the shorter stroke, make the user can be shorter when using the door handle to rotate the rotation stroke, thereby can reduce the flexible stroke of latch 121, realize quick unblanking, in addition, also can avoid latch 121 to appear blocking when retrieving to lock shell 110 scheduling problem, in addition, also can effectively reduce the life who improves return mechanism 140, avoid latch subassembly 120 excessively compressing elastic component 141.

In this embodiment, the latch fixing portion 122 is rotatably disposed in the lock case 110, and the latch 121 is driven to rotate together by rotating the latch fixing portion 122, so that the latch 121 can be reversed, and thus different door opening directions can be adapted. The reversing means that the door is pushed to open or pulled to open. It will be appreciated that the tongue 1211 needs to face in a different direction when opening the door in a different direction.

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 to limit the rotation of the latch bolt fixing portion 122, and it should be noted that the limiting mechanism 150 may be used to limit 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 may be limited by the limiting mechanism 150.

Specifically, as shown in fig. 10, in the present embodiment, the limiting mechanism 150 includes a reversing segment 151, where the reversing segment 151 is disposed in the lock housing 110, and the reversing segment 151 is provided with a first clip leg 1511 and a second clip leg 1512, where the first clip leg 1511 and the second clip leg 1512 are bent towards the same side of the reversing segment 151, and form a clip gap 1513 for clipping the latch rod 1221.

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

As an example, the commutator segments 151 may be rotatably disposed on the bottom case 113, for example: the reversing piece 151 can rotate at a first rotating position and a second rotating position, when the reversing piece 151 is positioned at the first rotating position, the inclined tongue rod 1221 can be clamped into the clamping gap 1513, and the blocking part 1222 abuts against the reversing piece 151; when the commutator segment 151 rotates from the first rotation position to the second rotation position, as shown in fig. 11 (the commutator segment 151 is in the second rotation position), at this time, the commutator segment 151 is far away from the latch rod 1221, so that the latch rod 1221 is separated from the engagement gap 1513, and since the blocking portion 1222 does not abut against the commutator segment 151, a user can completely pull the latch 121 out of the latch hole 112 to rotate, and rotate the latch 121 while driving the latch rod 1221 to rotate about the axis of the mounting hole 1315 as the rotation center, so as to reverse the latch surface 1211 of the latch 121, for example, when the latch 121 rotates 180 degrees, the latch surface 1211 of the latch 121 can face in the opposite direction, so as to adapt to the door opening directions of different doors. In addition, in some embodiments, as shown in fig. 10, the reversing piece 151 is further provided with a reversing block 1514, wherein the reversing block 1514 is connected to the reversing piece 151 and is embedded in the reversing hole 1137 on the bottom plate 1131 towards the bottom plate 1131, or the reversing block 1514 can also extend out of the reversing hole 1137, so as to facilitate the operation of the user outside the lock housing 110. The user can selectively clamp the latch fixing portion 122 into the clamping gap 1513 or away from the clamping gap 1513 by pulling the reversing block 1514 to rotate.

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

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

Specifically, referring to fig. 11, in the present embodiment, the pull plate assembly 134 includes a first pull plate 1341 and a second pull plate 1342, wherein the first pull plate 1341 is slidably disposed on the bottom plate 1131, wherein a sliding direction of the first pull plate 1341 is substantially perpendicular to an axial direction of the latch hole 112, and the first pull plate 1341 selectively abuts against the push block 132 during sliding to push the push block 132 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 together, 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 strip shape; the surface of the second pulling plate 1342 facing the first pulling plate 1341 is provided with a sliding post (not shown) cooperating with the sliding groove 1343, wherein the sliding post is slidably disposed in the sliding groove 1343. When the second pulling plate 1342 slides, the sliding column slides along the sliding groove 1343 for a certain distance and slides until the sliding column abuts 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 towards the pushing block 132.

Further, in the present embodiment, the first pulling plate 1341 is provided with a first guide hole 1344, wherein the first guide hole 1344 penetrates 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, wherein the first guiding hole 1344 mates with the second guiding hole 1345.

In some embodiments, only the first pulling plate 1341 or the second pulling plate 1342 may be provided.

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

In this embodiment, the driving mechanism 135 further includes a shift fork 1352 and a shift sleeve 1351, wherein the shift fork 1352 is rotatably assembled on one of the assembly holes 1136 and is in driving engagement with the first pull plate 1341, the shift fork 1352 can rotate about the axis of the assembly hole 1136 as a rotation center, and during the rotation process, the shift fork 1352 can shift the first pull plate 1341 towards the push block 132, so that the first pull plate 1341 pushes the push block 132 from the first position to the second position, and further the locking mechanism 120 releases the restriction on the latch 121. The shifting fork 1352 may be used to connect with the door handle, and when the door handle is turned, the shifting fork 1352 may be driven to rotate.

The pulling sleeve 1351 is rotatably assembled in the other assembly hole 1136 and is in transmission fit with the second pulling plate 1342, wherein the pulling sleeve 1351 can rotate around the axis of the assembly hole 1136 as a rotation center, during the rotation process, the pulling sleeve can stir the second pulling plate 1342 to move towards the pushing block 132, when the sliding post of the second pulling plate 1342 slides to abut against the first pulling plate 1341, at this time, the first pulling plate 1341 can drive the second pulling plate 1342 to move towards the pushing block 132 together, so that the second pulling plate 1342 and the pushing block 132 move from the first position towards the second position, and the locking mechanism 120 releases the restriction on the latch 121. The dial sleeve may be in driving connection with a drive (e.g., a motor) of the door lock 100, or may be in driving connection with a transmission driven by a mechanical key. When the key is used for opening the door, the transmission mechanism in transmission fit with the key can drive the first pulling plate 1341 or the second pulling plate 1342 to slide, the pulling plate assembly 134 slides towards the second position in the sliding process, so that the locking mechanism 120 releases the limit of the inclined tongue 121, the inclined tongue 121 is in rotation fit with the expansion and contraction of the inclined tongue fixing part 122, the whole inclined tongue assembly 120 is shorter in stroke along the lock tongue hole 112 during unlocking, unlocking is realized in the shorter stroke, and the rotating stroke of a user during rotation by using the key can be shorter.

Further, in some embodiments, the shift fork 1352 and the shift collar 1351 may be in driving engagement with the first pulling plate 1341 or the second pulling plate 1342 at the same time.

In summary, the door lock 100 provided in this embodiment is rotationally connected to the latch fixing portion 122 through the latch 121, when the door lock 100 is unlocked, the latch 121 is rotated under the action of the door frame by releasing the restriction of the latch mechanism 130 when the door body is pushed, so that the latch 121 can slide away from the lock hole of the door frame rapidly, and meanwhile, the latch 121 does not need to be completely retracted into the latch hole 112, so that the sliding stroke of the latch 121 can be reduced, and rapid unlocking is realized.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A door lock, comprising:

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

The inclined tongue component comprises an inclined tongue fixing part and an inclined tongue, the inclined tongue fixing part is arranged in the lock shell and is positioned in the accommodating cavity, the inclined tongue fixing part is arranged in the lock shell in a sliding manner along the axial direction of the lock tongue hole, the inclined tongue is rotationally connected to the inclined tongue fixing part, the rotation axis of the inclined tongue is mutually perpendicular to the axis of the lock tongue hole, the inclined tongue is provided with an inclined tongue surface, and at least part of the inclined tongue surface extends out of the lock tongue hole and drives the inclined tongue to rotate when the inclined tongue surface is stressed;

The locking mechanism is arranged in the accommodating cavity and used for selectively limiting the rotation of the inclined tongue, the locking mechanism comprises a locking piece, a push block, a driving part and a restoring piece used for resetting the push block, the locking piece is propped against the inclined tongue and is slidingly assembled in the accommodating cavity, the push block is movably assembled in the accommodating cavity and selectively propped against the locking piece, the push block is connected with the driving part and slides under the driving of the driving part, and is selectively propped against the inclined tongue fixing part and the locking piece in the sliding process; and

And the restoring mechanism is arranged in the accommodating cavity and used for resetting the inclined tongue.

2. The door lock according to claim 1, wherein the locking member is slidably fitted to the latch fixing portion in an axial direction of the latch hole, the latch 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 when the first engaging portion is engaged with the second engaging portion, the push block abuts against the locking member and the latch fixing portion.

3. The door lock according to claim 2, wherein the lock case is provided with a guide groove provided along an axial direction of the latch bolt hole, the locking member is provided with a guide block fitted with the guide groove, and the guide block is slidably provided in the guide groove.

4. The door lock according to claim 2, wherein the locking member includes a first plate body and a second plate body, the first plate body and the second plate body are disposed opposite to each other, the first plate body abuts against the inclined tongue, the locking member is provided with an assembly hole, the assembly hole penetrates through the first plate body and the second plate body, the inclined tongue fixing portion penetrates through the assembly hole to be connected with the inclined tongue, the first engaging portion is located between the first plate body and the second plate body, and when the second engaging portion is engaged with the first engaging portion, the push block abuts against the first plate body and the second plate body.

5. The door lock according to claim 4, wherein the return mechanism includes an elastic member having one end abutting against the second plate body and the other end fixed to the lock case.

6. The door lock according to claim 2, wherein the first engaging portion includes a locking groove provided in the latch fixing portion, and the second engaging portion includes a locking block provided in the push block, and the locking block is selectively inserted into the locking groove during sliding of the push block.

7. The door lock of claim 1, wherein the locking mechanism further comprises a pulling plate assembly and a driving mechanism for driving the pulling plate assembly, the pulling plate assembly selectively driving the push block to move and fitting in the receiving cavity.

8. The door lock of claim 7, wherein the lock housing further comprises a guide mechanism for guiding the pulling plate assembly.

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

10. The door lock according to claim 9, wherein the latch fixing portion includes a latch lever rotatably connected to the latch and slidably disposed along an axial direction of the latch hole, and a blocking portion connected to an end portion of the latch lever away from the latch and bent with respect to the latch lever, and the limiting mechanism includes a commutator bar disposed in the lock case and abutting against the blocking portion.