CN212478854U - Child lock switch structure of door lock, door lock and door thereof - Google Patents

Abstract

A child lock switch structure of a door lock and door thereof are provided, the child lock switch structure comprises: a handle joint and a limiting rod; when the gag lever post stretched into spacing dead slot, the part screens that the screens end was stretched into by the gag lever post of pushing down of spacing dead slot to the restriction handle connects the direction rotation that only can push down the screens end and keep away from the gag lever post and the reseing after this direction rotation. The door lock includes: a lock body, a handle member and a door lock panel; the switch structure of the child lock is arranged in the door lock panel; a door, the door lock is installed on a door main body. The scheme is a child lock switch structure of a door lock, and a limit empty groove which rotates relatively is arranged on a handle joint; when the child lock is opened, the handle piece can not press down the door, but can be lifted up to extend out of the main bolt of the lock body, so that the door is locked reversely; when the child lock is closed, the handle piece can be normally used, the main bolt extends out to realize counter locking when the handle piece is lifted up, and the door is opened when the handle piece is pressed down; the scheme provides the advantages of simple structure and high safety.

Description

Child lock switch structure of door lock, door lock and door thereof

Technical Field

The utility model relates to a lock technical field especially relates to a child's lock on-off structure of lock and lock AND gate thereof.

Background

When the existing door lock is in a child lock switch opening state, if the handle is in a door lock structure in an idle state, a user lifts and/or presses the handle at the moment, the door lock has no functional reaction, namely, the functions of opening the door and locking the door cannot be realized, the function is single, and the door lock has a complex structure, multiple assembly processes and high cost; in addition, if the handle is a fixed-state door lock structure, the handle cannot be lifted up or pressed down, for example, the chinese utility model patent with application number CN201822041264.8 or CN201320210378.5, the door lock structure related to these door lock structures or patents, if the handle needs to be lifted up to lock the door lock reversely, the child lock needs to be closed first, so that the handle is in a normal state, the handle can be lifted up to realize the reverse locking of the door lock, and the child lock is reopened after the reverse locking, which is inconvenient for users to use.

This two kinds of locks of taking child's lock structure, the operation in the user use is very inconvenient, does not conform to modern intelligent lock and brings convenient theory for the user, and the experience for the user is not good.

SUMMERY OF THE UTILITY MODEL

In order to solve the present lock of taking child to lock the structure, its function singleness, the structure is complicated, the operation uses inconvenient technical defect that leads to experiencing not good, the utility model aims to provide a child lock switch structure of lock, under the gag lever post of child lock stretched into the state of spacing dead slot, still can realize transmission control through rotating handle joint the main spring bolt stretches out. The door lock with the child lock structure is installed on a door, so that the door can be opened in a limited manner under the condition that the child lock is opened, the handle can be rotated to perform counter locking, and the function and the use convenience of a modern door lock are improved.

The utility model discloses still provide a lock, include: the child lock comprises a lock body, a handle piece and a door lock panel, wherein the child lock switch structure is installed in the door lock panel; the handle piece is arranged on the front surface of the door lock panel through a handle joint in a child lock switch structure; the lock body is also connected with the handle joint through the transmission connecting assembly, so that the handle piece can control the lock tongue of the lock body to stretch and retract to realize opening, closing and door locking.

The utility model discloses still provide a door, install on the door the lock can realize still can lifting the handle under the children's lock open mode through this lock and carry out the back lock.

To achieve the purpose, the utility model adopts the following technical proposal:

a child lock switch structure of a door lock comprises a handle joint and a limiting rod;

the handle joint comprises a disc main body, and a handle part and a main bolt of the door lock can be respectively connected to the disc main body so as to realize that the expansion of the main bolt can be controlled by rotating the handle part in a transmission way;

a limiting empty groove is formed in the disc surface of the disc main body, and the two tail ends of the limiting empty groove are respectively a pressing clamping end and a lifting clamping end;

one end of the limiting rod is aligned with the limiting empty groove; at least part of the limiting rod can slide in and out of the limiting empty groove in an adjustable mode;

when at least part of the limiting rod extends into the limiting empty groove, the downward pressing clamping end of the limiting empty groove is clamped by the part of the limiting rod extending into the limiting empty groove, so that the handle joint is limited to rotate only in the direction that the downward pressing clamping end is far away from the limiting rod and reset after rotating in the direction; and the rotatable angle of the handle joint in the direction at least can drive and control the extension of the main bolt.

Preferably, when at least part of the limiting rod extends into the limiting empty groove, the part, which is extended into the limiting empty groove, of the pressing clamping end of the limiting empty groove is clamped into an opening state of the child lock;

in the state that the child lock is opened, the direction in which the handle joint is limited to rotate only is the direction in which the handle piece is lifted and rotated.

Furthermore, the lock shell and the elastic reset component are also included;

a first limiting table and a second limiting table are arranged on the inner side surface of the lock shell;

the elastic reset assembly comprises a torsion spring and two raised deflector rods; the torsion spring is provided with two extending tail ends; the two convex deflector rods are respectively arranged on the disc surface of the disc main body;

after the torsion spring is screwed to store elastic potential energy, two extending tail ends of the torsion spring are respectively clamped and limited below the first limiting table and the second limiting table;

the handle joint is rotatably arranged on the lock shell and is positioned in the ring of the torsion spring; the two protruding deflector rods are respectively positioned above the two extending tail ends of the torsion spring;

when the handle connector is rotated, the handle connector can be pressed against one of the protruding deflector rods at the extending tail end, and the handle connector can be reset to the position before rotation by driving the pressed extending tail end to increase the elastic potential energy of the torsion spring.

According to some embodiments of the present invention, at least one of the two raised shift levers is detachably disposed on the disc surface of the disc main body; disassembling at least one of the raised deflector rods, rotating the handle joint, and then installing the disassembled raised deflector rod in situ, so that the reversing installation of the handle piece can be realized;

the limiting empty groove comprises a first limiting empty groove and a second limiting empty groove; and the limiting rod can adjustably slide in and out of the corresponding first limiting empty groove or the corresponding second limiting empty groove in two mounting directions of the handle piece.

Furthermore, the inner side surface of the lock shell is provided with a rotation limiting part, and the rotation limiting part is arranged on a rotation path of the protruding driving lever and used for limiting the rotation stroke of the protruding driving lever so as to limit the rotation angle of the handle joint.

Further, still include: a control mechanism including a control operation part and a connection assembly;

the control operation part is connected with the limiting rod through the connecting assembly so as to control the limiting rod to slide in and out of the limiting empty groove adjustably.

Further, still include: positioning the elastic piece and the switch base;

the limiting rod is adjustably and slidably arranged in the switch base;

the positioning elastic piece is arranged on the switch base and is positioned on the side edge of the limiting rod; the positioning elastic piece is provided with an elastically deformed arc end surface;

the limiting rod is provided with a positioning chuck; when the limiting rod stretches into and breaks away from the limiting empty groove, the positioning clamping head moves from one side of the arc end face to the other side of the arc end face through the arc end face.

A door lock, comprising: a lock body, a handle member, and a door lock panel;

the switch structure of the child lock is arranged in the door lock panel;

the handle piece is installed and connected to the handle joint and is positioned on the front side of the door lock panel;

the lock body is connected with the handle joint through a transmission component, and the handle piece is rotated to drive and control the bolt in the lock body to extend or retract;

wherein, the lock body comprises the main bolt.

Furthermore, the lock body comprises a latch bolt, a main bolt and a safety bolt;

the door lock also comprises a safety lock tongue control mechanism for controlling the switch of the safety lock tongue.

A door, comprising: a door body and a door lock as described above; the door lock is installed on the door main body.

The utility model has the advantages that:

this scheme is child lock switch structure of lock, simple structure, simple to operate, function increase when the cost reduction. The handle joint is provided with the limit empty groove with a certain radian; the limiting rod is aligned with the limiting empty groove and can slide in and out of the limiting empty groove in an adjustable mode. When the child lock is in an open state, namely the limiting rod is aligned with one end of the limiting empty groove and is adjusted to extend into the limiting empty groove, the downward pressing clamping end of the limiting empty groove is abutted against one side of the limiting rod and is clamped by the limiting rod, so that the handle joint is limited to rotate towards the direction of the limiting rod; meanwhile, in order to solve the technical problem of the existing child lock, the limiting empty groove is widened in radian to provide a stroke space for the limiting rod, so that the handle joint is limited to rotate only in the direction that the downward pressing clamping end is far away from the limiting rod and reset after rotating in the direction; meanwhile, when the handle joint rotates in the direction, the main bolt can be controlled to extend in a transmission mode.

Therefore, when the door lock with the child lock structure is installed on a door, the handle can be rotated towards the direction under the condition that the child lock is opened, so that the main lock tongue is controlled to extend in a transmission mode to realize back locking. The novel operating function has been brought for the user uses the lock, has promoted convenience and experience and feels, more accords with the convenient safe design theory again of modern intelligent lock, has overcome this technical problem that does not discover before the present case is put forward and is applied for.

Drawings

FIG. 1 is an exploded view of one embodiment of a child lock switch structure;

FIG. 2 is a schematic diagram of one of the panels of an embodiment of the handle adapter;

FIG. 3 is a schematic view of the structure of the spacing rod extending into the spacing groove according to an exemplary structure;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of an embodiment of the structure of the stop lever disengaged from the stop recess;

FIG. 6 is a schematic view of the position and configuration of the return spring with the handle adaptor installed in the housing;

fig. 7 is a schematic view of the structure of the handle joint.

Wherein:

a lock case 1; a first limit table 11 and a second limit table 12;

a handle joint 2; a limit empty slot 21; pressing down the clamping end 211; raising the clamping end 212; a first limit empty slot 2111 and a second limit empty slot 2122; a threaded hole 23; raised drivers 24 and 25; a connecting portion 26; a disc main body 27;

a handle member 3;

a switch base 4;

a limiting rod 5; a positioning chuck 51;

positioning the elastic member 6; a circular arc end surface 64; the side a and the side b of the arc end surface;

a control mechanism 7; a control operation unit 71; a connecting assembly 72;

a torsion spring 9; the extended end 91 of the torsion spring.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

To facilitate understanding of the present application, before describing the present application, it should be noted that the lock body generally includes a latch bolt, a main bolt and a safety bolt in the art. Basic operation of the door lock and its functions: when the child lock is in a closed state, the lifting handle can drive the main lock tongue to extend out to perform back locking; the handle is pressed down to drive and control the latch bolt and the main lock bolt to contract together so as to realize opening the door, at the moment, the handle is loosened, and only the latch bolt extends out again when the handle is reset; the safety lock tongue is controlled to extend and retract by a single component.

The utility model relates to a child lock switch structure of a door lock, which comprises a handle joint 2 and a limiting rod 5;

the handle joint 2 comprises a disc main body 27, and the handle part 3 of the door lock and a main bolt of the door lock can be respectively connected onto the disc main body 27 so as to realize that the expansion of the main bolt can be controlled by rotating the handle part 3 in a transmission way. Specifically, the middle parts of the two sides of the disc main body 27 are respectively provided with a connecting part 26 for being respectively connected with the handle part 3 and the main bolt. The handle connector 2 and the main bolt are connected in a transmission control mode through a transmission connecting piece, and the existing door lock can be referred to.

The disc main body 27 is provided with a limiting empty slot 21 on the surface, and the two ends of the limiting empty slot 21 are respectively a pressing-down clamping end 211 and a lifting-up clamping end 212. As shown in fig. 2, 3 or 6, the spacing empty groove 21 is sunken along the edge of the disc surface of the disc main body 27, and provides a stroke space for the part of the spacing rod 5 extending into the spacing empty groove 21. One end of the limiting rod 5 is aligned with the limiting empty groove 21; at least part of the limiting rod 5 can slide into and out of the limiting empty groove 21 in an adjustable mode. When at least part of the limiting rod 5 extends into the limiting hollow groove 21, the downward pressing clamping end 211 of the limiting hollow groove 21 is clamped by the part of the limiting rod 5 extending into the limiting hollow groove, so that the handle joint 2 is limited to rotate only in the direction that the downward pressing clamping end 211 is far away from the limiting rod 5 and reset after rotating in the direction; and the rotatable angle of the handle joint 2 in the direction can at least drive and control the main bolt to be fully extended. Further, as shown in fig. 2, the rotation angle of the handle member 3 in the direction is limited by the arc formed between the lower holding end 211 and the upper holding end 212 of the holding recess 21.

It can be understood that the handle member 3 is mounted on the handle joint 2, so that when the limiting rod 5 at least partially extends into the limiting empty groove 21, the rotatable direction, the rotating angle and the resetting of the handle member 3 are all synchronous with the handle joint 2. Thus, the handle member 3 cannot perform the reverse rotation of the direction; however, by rotating the operating handle member 3 in the direction, the driving control main bolt is extended to realize the back locking.

According to the conventional embodiment of the present invention, when at least a part of the limiting rod 5 extends into the limiting empty groove 21, the pressing-down position-locking end 211 of the limiting empty groove 21 is locked by the part of the limiting rod 5 extending into the limiting empty groove to be in the open state of the child lock; in the child lock open state, the direction in which the handle joint 2 is restricted to only being rotatable is the direction in which the handle member 3 is lifted and rotated. Area promptly children lock switch structure's lock normally installs on the door, and the rotation direction of 3 operations of handle spare is: the handle is pressed down to open the door (in the state that the child lock is closed), and the handle is lifted up to perform the back locking operation (namely, the main lock tongue extends out); of course, only be some embodiments, do not break away from the utility model discloses technical scheme reforms transform or other mounting means, all belongs to the scope of protection of the utility model.

In addition, the door lock with the child lock structure provided by the scheme generally refers to a rear lock installed in a room; of course, other mounting approaches or ways may be used as desired. As long as the function of structure and realization is like the utility model discloses, all belong to the utility model discloses a protection scope.

Therefore, the switch structure of the child lock of the door lock disclosed by the scheme is normally installed, when the child lock is opened, namely when the limiting rod 5 is adjusted to extend into the limiting empty groove 21, the limiting rod 5 abuts against one side of the lower clamping end 211, the clamping limiting handle joint 2 is used for pressing the clamping end 211 downwards to rotate towards the limiting rod 5, and therefore the handle piece 3 is limited by the clamping position and cannot be pressed to open the door; however, the handle joint 2 is provided with the limiting empty groove 21 which can rotate relatively, so that a stroke space is provided for the limiting rod 5, the handle piece 3 can be lifted up to drive and control the main bolt of the lock body to extend out, and the door is locked reversely. The function of the child lock is reserved, and meanwhile, the reverse locking operation can be conveniently completed under the condition that the child lock is opened. When the child lock is closed, namely the limiting rod 5 is separated from the limiting empty groove 21, the handle piece 3 can be lifted up to drive and control the main bolt to extend out to realize counter locking, the handle piece 3 can also be pressed down, and the main bolt and the oblique bolt are driven and controlled to contract to realize door opening. It should be noted that: the limiting rod 5 is not limited to a straight inserted rod as shown in the attached drawings, and as long as the limiting rod is provided with a limiting structure which can be adjusted to enter and exit the limiting empty groove 21, the limiting structure can form a clamping position with the downward pressing clamping end 211 to limit the downward pressing rotation of the handle part 3; meanwhile, spacing dead slot 21 can provide the stroke space for gag lever post 5 to thereby it stretches out to realize the back lock to lift 3 transmission control main lock tongues of handle spare, all belongs to the utility model discloses a protection scope.

Further, this child lock structure still includes: the lock shell 1 and the lock elastic reset component; a first limiting table 11 and a second limiting table 12 are arranged on the inner side surface of the lock shell 1;

the elastic reset component comprises a torsion spring 9 and two raised deflector rods 24 and 25; the torsion spring 9 is provided with two extending ends 91; the two convex deflector rods 24 and 25 are respectively arranged on the disc surface of the disc main body;

as shown in fig. 6, after the torsion spring 9 stores elastic potential energy by screwing, two extending ends 91 thereof are respectively arranged below the first limiting table 11 and below the second limiting table 12 in a clamping manner; therefore, the extending end 91 arranged below the first limiting table 11 can only rotate in the direction of pressing the handle member 3 downwards as shown in fig. 6; the other extending end 91 which is arranged below the second limit table 12 is limited and can only rotate in the direction of lifting the handle part 3 as shown in the state of fig. 6;

the handle joint 2 is rotatably mounted on the lock shell 1 (by a bearing or other rotating member) and is located in the coil of the torsion spring 9; and the two raised deflector rods 24 and 25 are respectively positioned above the two extending tail ends 91 of the torsion spring 9; specifically, the two raised shift levers 24 and 25 are also respectively located between the first limiting table 11 and the second limiting table 12; to facilitate the positional relationship, as shown in fig. 6, the two raised levers 24 and 25 are shown in positions corresponding to the two extending ends 91 of the torsion spring 9 when the handle adapter 2 is mounted in the lock case 1;

when the handle connector 2 is rotated, the raised shift levers 24 and 25 capable of pressing against one of the extended ends 91 drive the pressed extended end 91 (the torsion spring 9 is further tightened and deformed) to increase the elastic potential energy of the torsion spring 9, and when the external force for rotating the handle connector 2 is removed, the increased elastic potential energy is released to reset the handle connector 2 to the position before rotation.

Specifically, for example, as shown in fig. 6, the structure and position, in the initial state, the handle member 3 can be stabilized in the horizontal state due to the elastic potential energy stored in the torsion spring 9. Push down handle spare 3, be located the inboard protruding driving lever 24 of first spacing platform 11, drive the terminal 91 of extension that is located protruding driving lever 24 below and carry out clockwise rotation, and torsional spring 9 deformation is in order to increase elastic potential energy, removes the external force of pushing down that pushes down handle spare 3, and the elastic potential energy release of increase, and torsional spring 9 deformation resumes, drives handle joint 2 and handle spare 3 by the terminal 91 of extension of protruding driving lever 24 below and resumes the normal position. Similarly, the handle member 3 is lifted up, and the rotation and the return to the original position thereof are realized by the protruding shift lever 25 and the extended end 91 on the side of the second limit stop 12. Are presented herein for convenience of presentation only and should not be construed as limiting the invention.

In order to adapt to doors with different opening directions, according to some embodiments of the present invention, at least one of the two raised levers 24 and 25 is detachably disposed on the disc surface of the disc main body 27; at least one of the raised drivers 24 or 25 is removed, the handle adapter 2 is rotated (with other components mounted on the handle adapter 2, such as the handle member 3 and the connecting member for connecting the latch bolt, as referred to in the prior art), and the removed raised driver is mounted back on the disk surface of the disk main body 27 in situ, so that the handle member 3 can be mounted in a reversed manner. The limit empty slot 21 comprises a first limit empty slot 2111 and a second limit empty slot 2122; moreover, the limiting rod 5 can adjustably slide in and out of the corresponding first limiting empty groove 2111 or second limiting empty groove 2122 in the two mounting directions of the handle part 3; the position of the limiting rod 5 is unchanged, and the position of one limiting empty groove is matched with one installation direction, so that the limiting rod 5 can respectively correspond to the handle piece 3 in two different installation directions, and the child lock structure and the functions brought by the child lock structure are realized in the two installation directions. Meanwhile, at least one of the raised deflector rods 24 and 25 is detachably arranged on the disc surface of the disc main body, and the rapid reversing installation of the door lock can be realized by detaching the raised deflector rods according to the actual opening direction of the door. It will be appreciated that the two raised levers 24 and 25 are interchangeable in position, operating in the same manner, after the door lock has been installed in reverse, only in position and direction.

In order to facilitate the disassembly of the raised drivers 24 and 25, as shown in fig. 6-7, the handle adapter 2 is provided with a threaded hole 23; the raised deflector rod 25 can adopt a screw rod matched with the threaded hole 23; the raised shifting rod 25 is detachably screwed into the threaded hole 23 through threads. It will be appreciated that the raised levers 25 and/or 24 may be removably mounted on the disc surface of the disc body of the handlebar adapter 2 in this manner; or other removable configurations.

In order to prevent the handle piece 3 from rotating in a clockwise (or anticlockwise) single direction for an infinite angle to damage the torsion spring 9, the inner side surface of the lock shell 1 is provided with a rotation limiting part 13; the rotation limiting portion 13 is disposed on a rotation path of the protruding levers 24 and 25, and is configured to limit a rotation stroke of the protruding levers 24 and 25, so as to limit a rotation angle of the handle connector 2. For example, based on the position state shown in fig. 6, that is, the rotation of the handle member 3 in both clockwise and counterclockwise directions, the protruding levers 24 and 25 are respectively restricted to rotatably abut against the right and left ends of the rotation-restricting portion 13. It should be noted that the raised shift lever 24 is located on the disc surface of the disc main body facing the handle member 3, and is located at a symmetrical position of the raised shift lever 25; but should not be construed as limiting the invention.

In order to variably control the switching operation of the child lock, further, the child lock structure further includes: a control mechanism 7 including a control operation portion 71 and a connection assembly 72; the control operation part 71 is connected with the limiting rod 5 through the connecting component 72 so as to control the limiting rod 5 to adjustably slide in and out of the limiting empty groove 21. According to the utility model discloses a partial embodiment, control mechanism 7 set up in lock shell 1 surface can adopt to dial to turn round the isotwitch structure.

If a switch structure such as a toggle switch is adopted, when the opening state and the closing state of the child lock are switched, a user only needs to lift or lower the control operation part 71, and then the limiting rod 5 can be synchronously adjusted and controlled to stretch into or separate from the limiting empty groove 21, so that convenient operation is provided for the user.

Preferably, a prompt sign of the state of the child lock switch, such as "ON and OFF; open and close, etc.' to provide an intuitive door lock state for the user.

In order that the structure and the state of the child lock are more stable, the child lock further comprises: positioning elastic piece 6 and switch base 4; the limiting rod 5 is adjustably and slidably arranged in the switch base 4; the positioning elastic piece 6 is arranged on the switch base 4 and is positioned on the side edge of the limiting rod 5; the positioning elastic piece 6 is provided with an elastically deformed arc end surface 64; the limiting rod 5 is provided with a positioning chuck 51; when the limiting rod 5 extends into and breaks away from the limiting empty groove 21, the positioning chuck 51 passes through the arc end face 64, moves from one side of the arc end face 64 to the other side of the arc end face 64, and the positioning chuck 51 is limited by the arc end face 64, so that the limiting rod is stabilized at a certain position, and the opening state or the closing state of the child lock can be kept.

Specifically, as shown in fig. 5, the switch base 4 is installed in the lock case 1; the positioning elastic pieces 6 can be made of metal sheets or other materials with restorable elastic deformation, and in order to facilitate installation of the positioning elastic pieces 6, two ends of each of the two positioning elastic pieces 6 are bent and clamped into four limiting grooves on the switch base 4 so as to fix the two positioning elastic pieces 6 on the switch base 4; the two positioning elastic pieces 6 are provided with elastically deformed arc end surfaces 64, and the arc tops of the two arc end surfaces 64 of the two positioning elastic pieces 6 are arranged oppositely. The top end of the arc end surface 64 divides the space into two sides, when the limiting rod 5 needs to extend into the limiting empty groove 21, the positioning chuck 51 needs to move from the side a of the arc end surface 64 to the side b thereof by means of external force, and at the moment, the positioning chuck 51 presses the arc end surface 64 after being stressed, so that the arc end surface 64 is deformed, and the arc end surface 64 is deformed and restored after moving from the side a of the arc end surface 64 to the side b thereof; after the stress of the positioning chuck 51 is removed, the positioning chuck 51 stays at the side b under the non-stress action, so that the effect of limiting the limiting rod 5 in the limiting empty groove 21 is realized; the same principle applies to the movement from the side b to the side a, so that the stopper rod 5 is kept away from the stopper empty groove 21. Simple structure, and the location is accurate stable, and the location dop 51 can keep being in a side or b side, has realized that regulation control gag lever post 5 stretches into or breaks away from in spacing dead slot 21 accurately.

It can be understood that the above description is a structure of the toggle switch, so the shape of the limiting rod 5 and the installation control mechanism thereof are not limited to the example of the embodiment, and other switch structures can be adopted, and the purpose of the present invention is not separated from the present invention, and the limiting rod 5 with similar shape and/or different installation control mechanisms can be obtained, all belong to the protection scope of the present invention.

The utility model also provides a lock, include: a lock body, a handle member 3, and a door lock panel;

a child lock switch structure of any of the above embodiments is installed in the door lock panel; the lock case 1 in the child lock structure is introduced, for the main body part of the door lock panel, the door lock panel generally further includes a password input module, an index identification module, a camera, a panel cover and other functional components;

the handle piece 3 is installed and connected on the handle joint 2 and is positioned on the front surface of the door lock panel;

the lock body is connected with the handle joint 2 through a transmission component, and the handle piece 3 is rotated to drive and control the bolt in the lock body to extend or retract;

wherein, the lock body comprises the main bolt as described in any of the above embodiments.

Furthermore, the lock body comprises a latch bolt, a main bolt and a safety bolt; the door lock also comprises a safety lock tongue control mechanism for controlling the switch of the safety lock tongue. The safety lock tongue control mechanism is arranged on the front side of the door lock panel, and is convenient to operate.

The utility model also provides a door, include: a door body and a lock body; the lock body is mounted on the door main body; the lock body is the door lock of any embodiment, so that the door can realize the door lock function with the child lock structure.

In the description of the present invention, it is to be understood that the terms "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. A child lock switch structure of a door lock is characterized by comprising a handle joint and a limiting rod;

the handle joint comprises a disc main body, and a handle part and a main bolt of the door lock can be respectively connected to the disc main body so as to realize that the expansion of the main bolt can be controlled by rotating the handle part in a transmission way;

a limiting empty groove is formed in the disc surface of the disc main body, and the two tail ends of the limiting empty groove are respectively a pressing clamping end and a lifting clamping end;

one end of the limiting rod is aligned with the limiting empty groove; at least part of the limiting rod can slide in and out of the limiting empty groove in an adjustable mode;

when at least part of the limiting rod extends into the limiting empty groove, the downward pressing clamping end of the limiting empty groove is clamped by the part of the limiting rod extending into the limiting empty groove, so that the handle joint is limited to rotate only in the direction that the downward pressing clamping end is far away from the limiting rod and reset after rotating in the direction; and the rotatable angle of the handle joint in the direction at least can drive and control the extension of the main bolt.

2. A child lock switch structure of a door lock according to claim 1, wherein when at least a portion of the limiting rod extends into the limiting empty groove, a portion of a downward pressing position of the limiting empty groove, into which the limiting rod extends, is positioned in a child lock opening state;

in the state that the child lock is opened, the direction in which the handle joint is limited to rotate only is the direction in which the handle piece is lifted and rotated.

3. A child lock switch structure of a door lock according to claim 2, further comprising a lock case and a resilient return member;

a first limiting table and a second limiting table are arranged on the inner side surface of the lock shell;

the elastic reset assembly comprises a torsion spring and two raised deflector rods; the torsion spring is provided with two extending tail ends; the two convex deflector rods are respectively arranged on the disc surface of the disc main body;

after the torsion spring is screwed to store elastic potential energy, two extending tail ends of the torsion spring are respectively clamped and limited below the first limiting table and the second limiting table;

the handle joint is rotatably arranged on the lock shell and is positioned in the ring of the torsion spring; the two protruding deflector rods are respectively positioned above the two extending tail ends of the torsion spring;

when the handle connector is rotated, the handle connector can be pressed against one of the protruding deflector rods at the extending tail end, and the handle connector can be reset to the position before rotation by driving the pressed extending tail end to increase the elastic potential energy of the torsion spring.

4. A switch structure for a child lock of a door lock according to claim 3, wherein at least one of the two raised levers is detachably provided on the disc surface of the disc main body; disassembling at least one of the raised deflector rods, rotating the handle joint, and then installing the disassembled raised deflector rod in situ, so that the reversing installation of the handle piece can be realized;

the limiting empty groove comprises a first limiting empty groove and a second limiting empty groove; and the limiting rod can adjustably slide in and out of the corresponding first limiting empty groove or the corresponding second limiting empty groove in two mounting directions of the handle piece.

5. A switch structure of a child lock of a door lock according to claim 3, wherein a rotation limiting portion is provided on an inner side surface of the lock case, and the rotation limiting portion is provided on a rotation path of the raised lever to limit a rotation stroke of the raised lever so as to limit a rotation angle of the handle joint.

6. A switch structure of a child lock of a door lock according to claim 1, further comprising: a control mechanism including a control operation part and a connection assembly;

the control operation part is connected with the limiting rod through the connecting assembly so as to control the limiting rod to slide in and out of the limiting empty groove adjustably.

7. A switch structure of a child lock of a door lock according to claim 6, further comprising: positioning the elastic piece and the switch base;

the limiting rod is adjustably and slidably arranged in the switch base;

the positioning elastic piece is arranged on the switch base and is positioned on the side edge of the limiting rod; the positioning elastic piece is provided with an elastically deformed arc end surface;

the limiting rod is provided with a positioning chuck; when the limiting rod extends into or is separated from the limiting empty groove, the positioning clamping head moves from one side of the arc end face to the other side of the arc end face through the arc end face.

8. A door lock, comprising: a lock body, a handle member and a door lock panel;

a child lock switch structure according to any one of claims 1 to 7 is mounted in the door lock panel;

the handle piece is installed and connected to the handle joint and is positioned on the front side of the door lock panel;

the lock body is connected with the handle joint through a transmission component, and the handle piece is rotated to drive and control the bolt in the lock body to extend or retract;

wherein, including in the lock body: the main bolt.

9. The door lock of claim 8, wherein the lock body comprises a latch bolt, a main bolt and a safety bolt;

the door lock also comprises a safety lock tongue control mechanism for controlling the switch of the safety lock tongue.

10. A door, comprising: a door body and a door lock according to claim 8; the door lock is installed on the door main body.

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