CN114458097A

CN114458097A - Lock body and lock with same

Info

Publication number: CN114458097A
Application number: CN202210121799.4A
Authority: CN
Inventors: 张季冬
Original assignee: Jiangsu Dongguan Intelligent Technology Co ltd
Current assignee: Jiangsu Dongguan Intelligent Technology Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-05-10
Anticipated expiration: 2042-02-09
Also published as: CN114458097B

Abstract

The application discloses lock body and have its tool to lock includes: a lock case; the lock bolt is telescopically arranged on the lock shell so as to move between a first extending position and a first retracting position; the bolt safety structure is arranged on the bolt and comprises a first moving part, the first moving part is movably arranged on the bolt to move between a first position and a second position, and when the bolt is located at a first extending position and the first moving part is located at the first position, the first moving part is matched with the lock shell to limit the retraction of the bolt; when the bolt is located first extended position and first moving part is located the second position, the bolt can retract relative to the bolt. The application provides a lock body and have its tool to lock for the spring bolt can lock so that it can not retract through spring bolt insurance structure when inserting the lock hole, avoids inserting the condition that the spring bolt in the lock hole appears retracting when receiving superstrong external force, is showing the security performance who has improved the tool to lock.

Description

Lock body and lock with same

Technical Field

The invention relates to the technical field of locks, in particular to a lock body and a lock with the lock body.

Background

Push-down locks are one of the common locks, and are opened or locked by a user pressing down an operating handle of the lock to rotate the lock. When the door structure locks the door through the downward pressing type lockset, the spring bolt is inserted into the lock hole so as to lock the door.

However, the spring bolt of push-down tool to lock is in telescopic state always, and when the lock body received superstrong thrust, the condition that the spring bolt can appear retracting for the tool to lock is opened, makes the security performance of tool to lock lower.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a lock body and a lock having the same.

In a first aspect, the present application provides a lock body comprising:

a lock case;

the lock bolt is movably arranged on the lock shell and moves between a first extending position and a first retracting position;

the bolt safety structure comprises a first moving part, the first moving part is movably arranged on the bolt to move between a first position and a second position, and when the bolt is located at a first extending position and the first moving part is located at the first position, the first moving part is matched with the lock shell to limit the retraction of the bolt; when the bolt is located first extended position and first moving part is located the second position, the bolt can retract relative to the bolt.

Furthermore, the lock shell is provided with a first abutting part, and the first movable part is provided with a second abutting part;

when the bolt is located at the first extending position and the first movable piece is located at the first position, the first abutting part and the second abutting part are abutted and matched in the retraction direction of the bolt to limit the retraction of the bolt; when the bolt is located the first extended position and the first movable piece is located the second position, the second butt joint portion dodges the first butt joint portion to make the bolt retract relative to the bolt.

The bolt safety structure further comprises a first pushing piece arranged on the bolt, the first pushing piece is provided with a second extending position extending out of the surface of the bolt and a second retracting position retracting to the bolt, and the first pushing piece is movably arranged to move between the second extending position and the second retracting position;

when the first pushing piece is in the first extending position, the first moving piece is pushed to the first position by the first pushing piece; when the first movable piece moves to the first retracted position, the first pushing piece is pushed out of the moving path of the first movable piece, so that the first movable piece can move to the first position.

Furthermore, the bolt safety structure further comprises a first elastic structure, wherein two ends of the first elastic structure are respectively abutted to the first moving part and the first pushing part, and provide elastic force moving towards the first position and elastic force moving towards the second extending position towards the first pushing part for the first moving part.

Furthermore, the first elastic structure is a first torsion spring, and two ends of the first torsion spring are respectively abutted with the first moving part and the first pushing part.

Further, the first movable member is pivotally coupled to the latch bolt for movement between a first position and a second position.

Further, the bolt is rotatably disposed in the housing for movement between a first extended position and a first retracted position.

Furthermore, the lock shell is also provided with a handle rotating shaft and a transmission assembly, the handle rotating shaft is in driving connection with the lock tongue and the first moving part through the transmission assembly, and the handle rotating shaft is used for enabling an indoor rotating handle to be rotatably connected to the lock shell;

when the handle rotating shaft rotates by a first preset angle along the unlocking direction from the initial position, the transmission assembly drives the first movable member to rotate under the driving of the handle rotating shaft so as to enable the first movable member to rotate to the second position; when the handle rotating shaft rotates along the unlocking direction and continues to rotate for a second preset angle, the transmission assembly drives the lock tongue to rotate to a first retraction position under the driving of the handle rotating shaft.

Further, the transmission assembly includes:

the first transmission piece is sleeved on the handle rotating shaft and provided with a first driving part;

the second pushing piece is provided with a pushing part which is used for being matched with the first moving piece in a pushing mode, can be rotatably arranged on the lock shell, and pushes the first moving piece to rotate from the first position to the second position through the pushing part in the rotating process;

the first rotating piece is rotatably connected to the lock shell and provided with an accommodating groove and a first driving matching part used for matching with the first driving part;

the first transmission piece is connected with the lock tongue, one end of the first transmission piece is inserted into the accommodating groove, a first gap is formed between the insertion end of the first transmission piece and the groove wall of the accommodating groove, and the first gap is used for avoiding the first transmission piece when the first transmission piece rotates during the period that the handle rotating shaft rotates by a first preset angle;

when the handle rotating shaft rotates for a first preset angle, the handle rotating shaft drives the first transmission piece to rotate, so that the first transmission piece drives the first rotation piece to rotate through the matching of the first driving part and the first driving matching part, and the first rotation piece drives the second pushing piece to rotate, so that the first moving piece rotates to a second position; when the handle rotating shaft rotates by a second preset angle, the handle rotating shaft drives the first transmission piece to rotate, so that the first transmission piece drives the first transmission piece to rotate through the matching of the first driving part and the first driving matching part, the first transmission piece drives the second transmission piece to move, and the second transmission piece drives the lock tongue to rotate to the first retraction position.

Furthermore, the lock tongue and the second pushing piece are both rotationally connected to the lock shell through a first rotating shaft.

Furthermore, the lock tongue comprises a lock tongue body and a first rotating shaft connecting part which are connected, the lock tongue is rotatably connected to the first rotating shaft through the first rotating shaft connecting part, the second transmission piece is connected to the first rotating shaft connecting part, and the second transmission piece and the lock tongue body are respectively positioned on two sides of the first rotating shaft to form a first lever structure;

and/or the second pushing piece further comprises a second rotating shaft connecting part and a second driving matching part, the pushing part and the second driving matching part are both connected with the second rotating shaft connecting part, and the pushing part and the second driving matching part are respectively positioned on two sides of the first rotating shaft to form a second lever structure.

Furthermore, the number of the first rotating members is two, the second transmission member is located between the two first rotating members, two ends of each first rotating member are respectively inserted into the accommodating grooves in the two first rotating members, each first rotating member is provided with two first driving portions, and the two first driving portions are respectively matched with the first driving portions in the two first rotating members in a one-to-one correspondence manner.

Furthermore, the lock shell is further provided with a safety lock and a second rotating part, the safety lock comprises a lock cylinder and a third pushing part, the third pushing part is arranged on the inner side of the lock cylinder and rotates together with the lock cylinder, the third pushing part is eccentrically arranged relative to the axis of the lock cylinder, the second rotating part is rotatably arranged in the lock shell, the second rotating part is provided with a second driving part and a third driving matching part, the third pushing part is in driving matching with the third driving matching part to drive the second rotating part to rotate, and the second rotating part is matched with the first driving matching part to drive the first rotating part to rotate through the second driving part when rotating.

In a second aspect, the present application further provides a lock including a lock body.

And when the lock tongue is positioned in the lock hole, the pushing piece pushes a first pushing piece in the lock tongue safety structure so that the first pushing piece is positioned at a second retraction position.

The application provides a lock body and have its tool to lock, through be equipped with spring bolt insurance structure on the spring bolt, first moving part in the spring bolt insurance structure movably sets up in the spring bolt in order to remove between primary importance and second place, when the spring bolt is located first extended position and first moving part is located the primary importance, first moving part and lock shell cooperation are in order to restrict the spring bolt and return, when the spring bolt is located first extended position and first moving part is located the second place, the relative spring bolt of spring bolt can return, make the spring bolt can lock so that it can not return through spring bolt insurance structure when inserting the lock hole, the condition of returning appears when receiving super strong external force in the spring bolt of avoiding inserting in the lock hole, the security performance who has showing and improving the tool to lock.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a lock provided in an embodiment of the present application;

fig. 2 is a perspective view of a lock body provided in an embodiment of the present application;

FIG. 3 is a perspective view from another perspective of the structure shown in FIG. 2;

figure 4 is a perspective view of a portion of the lock body provided in the embodiments of the present application;

FIG. 5 is a perspective view from another perspective of the structure shown in FIG. 4;

FIG. 6 is a schematic structural diagram of a lock case according to an embodiment of the present application;

fig. 7 is a schematic view of a bolt structure provided in an embodiment of the present application;

fig. 8 is a schematic view of a position of the first movable member in the tongue according to an embodiment of the present disclosure.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

Referring to fig. 1, the present application provides a lock body and a lock with the lock body, when the lock is assembled to a door structure, the lock body of the lock is installed on the door, and a lock seat of the lock is installed on a door frame. The lock body is at least provided with an indoor rotary handle 400, and the lock is unlocked by rotating the indoor rotary handle 400. The lock provided by the application can be used for household or public use, and can be used as a door lock on vehicles such as trains and high-speed rails.

With continuing reference to figure 1 and with further reference to figures 2-3 and 6-8, embodiments of the present application provide a lock body comprising:

a lock case 100;

a latch bolt 200, the latch bolt 200 being movably disposed at the lock case 100 to move between a first extended position and a first retracted position;

the safety structure of the lock tongue 200, the safety structure of the lock tongue 200 includes a first movable member 310, the first movable member 310 is movably disposed on the lock tongue 200 to move between a first position and a second position, wherein, when the lock tongue 200 is located at a first extended position and the first movable member 310 is located at the first position, the first movable member 310 cooperates with the lock case 100 to limit the retraction of the lock tongue 200; when the latch bolt 200 is in the first extended position and the first movable member 310 is in the second position, the latch bolt 200 is able to retract relative to the latch bolt 200.

In this embodiment, the lock body includes a lock case 100, a bolt 200, and a bolt 200 securing structure, the bolt 200 is mounted to the lock case 100, and the bolt 200 securing structure is mounted to the bolt 200. The lock case 100 is formed with a mounting cavity 101 for mounting the latch bolt 200 and the like. The latch bolt 200 is movably disposed in the housing 100 to move between a first extended position and a first retracted position. The housing 100 is provided with a first opening through which the bolt 200 extends out of the surface of the housing 100 when in a first extended position and through which the bolt 200 may be fully or largely retracted into the mounting cavity 101 when in a first retracted position.

The deadbolt 200 safety feature includes a first movable member 310, the first movable member 310 having a first position and a second position relative to the deadbolt 200 and being movable between the first position and the second position. When the latch bolt 200 is located at the first extended position and the first movable member 310 is located at the first position, the first movable member 310 cooperates with the lock case 100 to lock the latch bolt 200, so as to limit the retraction of the latch bolt 200; when the latch bolt 200 is located at the first extended position and the first movable member 310 is located at the second position, the engagement between the first movable member 310 and the lock case 100 is released, so that the latch bolt 200 can be retracted relative to the latch bolt 200.

The use process of the lock body can be as follows: during locking, the latch bolt 200 is inserted into the lock hole and located at the first extended position, and then the first movable member 310 is moved to the first position to lock the latch bolt 200 so that it cannot retract; when the lock is unlocked, the first movable member 310 is moved to the second position, at this time, the lock tongue 200 can be extended and retracted, and the lock tongue 200 can be driven to retract by rotating the handle 400 in the rotating chamber, so that the lock tongue 200 exits from the lock hole.

The lock body provided by the embodiment, through being equipped with the bolt 200 safety structure on the bolt 200, the first moving part 310 in the bolt 200 safety structure is movably arranged on the bolt 200 to move between the first position and the second position, when the bolt 200 is located at the first extended position and the first moving part 310 is located at the first position, the first moving part 310 cooperates with the lock case 100 to limit the bolt 200 to retract, when the bolt 200 is located at the first extended position and the first moving part 310 is located at the second position, the bolt 200 can retract relative to the bolt 200, so that the bolt 200 can be locked through the bolt 200 safety structure when being inserted into the lock hole to make the bolt 200 not retract, the situation that the bolt 200 inserted into the lock hole retracts when being subjected to an ultra-strong external force is avoided, and the safety performance of the lock is remarkably improved.

The lock case 100 may include a bottom wall 110 and two side walls 120, the two side walls 120 are disposed on the bottom wall 110 and located on two opposite sides of the bottom wall 110, and the installation cavity 101 is formed between the bottom wall 110 and the two side walls 120. The first opening is located in one of the sidewall portions 120.

In some embodiments of the present application, the lock housing 100 is provided with a first abutment 130 and the first movable member 310 is provided with a second abutment;

when the latch bolt 200 is located at the first extended position and the first movable member 310 is located at the first position, the first abutting portion 130 and the second abutting portion are in abutting engagement in the retraction direction of the latch bolt 200 to limit the retraction of the latch bolt 200; when the latch bolt 200 is in the first extended position and the first movable member 310 is in the second position, the second abutment portion is clear of the first abutment portion 130 to enable retraction of the latch bolt 200 relative to the latch bolt 200.

In this embodiment, the lock case 100 is provided with a first abutting portion 130, the first movable member 310 is provided with a second abutting portion corresponding to the first abutting portion 130, and the first abutting portion 130 and the second abutting portion can be abutted and matched. When the latch bolt 200 is located at the first extended position and the first movable member 310 is located at the first position, the first abutting portion 130 and the second abutting portion are in abutting engagement in the retracting direction of the latch bolt 200 to limit the retraction of the latch bolt 200. When the latch bolt 200 is in the first extended position and the first movable member 310 is in the second position, the second abutment portion avoids the first abutment portion 130 in the retraction direction of the latch bolt 200, so that the latch bolt 200 can be retracted relative to the latch bolt 200. The lock case 100 and the first movable element 310 are in abutting engagement with each other through the first abutting portion 130 and the second abutting portion, so that the strength and stability of locking the latch tongue 200 are good.

Referring to fig. 1-5 and 7-8, the first movable member 310 moves in a rotational manner, that is, the first movable member 310 is rotatably connected to the latch tongue 200 to move between the first position and the second position. Of course, in other embodiments not shown in the present application, the movement manner of the first movable member 310 may also be a translation manner, and the present application does not limit this. For example: the first movable member 310 is movable in an up-and-down direction to switch between the first position and the second position.

Referring to fig. 1-5 and 7-8, the movement of the latch tongue 200 is rotational, i.e., the latch tongue 200 is rotationally coupled to the housing 100 to move between a first extended position and a first retracted position. Of course, in other embodiments not shown in the present application, the movement mode of the latch 200 may also be a translation mode, and the present application does not limit this. For example: the latch tongue 200 is translated in the width direction of the lock case 100 to perform a telescopic motion.

Wherein the second position is below the first position, with reference to fig. 1-5 and 7-8. Of course, in the embodiment not shown in the drawings of the present application, the second position may be located above the first position, and the like, which is not limited in the present application.

Referring to fig. 1-8, the first abutting portion 130 and the second abutting portion are in surface-to-surface contact when in abutting engagement, specifically: the first abutting portion 130 has a first abutting surface 131, the second abutting portion has a second abutting surface 311, the first abutting portion 130 and the second abutting portion are abutted and matched through the first abutting surface 131 and the second abutting surface 311, that is, when the first movable element 310 is located at the first position, the first abutting surface 131 and the second abutting surface 311 are mutually attached and abutted and matched in the retraction direction of the bolt 200, so that the first abutting portion 130 and the second abutting portion can be in surface contact and have a larger abutting contact area, the stability of abutting and matching is improved, and the abrasion of the abutting portions is reduced. Of course, in the embodiment of the present application, which is not shown in the drawings, the first abutting portion 130 and the second abutting portion are in face line contact or the like at the time of abutting engagement, and the present application does not limit this.

As shown in fig. 1 to 6, the first abutting portion 130 may be a first abutting plate, one end of which is fixedly connected to the top wall of the first opening and the other end of which is suspended into the first opening. The latch tongue 200 is provided with an avoidance notch, and the first abutting portion 130 is avoided through the avoidance notch, and the first movable member 310 is disposed at the avoidance notch. The overhanging section of the first abutting plate is provided with a first abutting surface 131 on the side far away from the installation cavity 101. The first movable member 310 is provided with a first groove, and a groove wall surface of the first groove close to the head end of the latch bolt 200 is a second abutting surface 311. The head end of the latch bolt 200 should be understood as the end of the latch bolt 200 that enters the lock hole first when inserted into the lock hole.

In some embodiments of the present application, the deadbolt 200 safety feature further comprises a first pusher 330 disposed on the deadbolt 200, the first pusher 330 having a second extended position extending beyond a surface of the deadbolt 200 and a second retracted position retracted into the deadbolt 200, the first pusher 330 movably disposed to move between the second extended position and the second retracted position;

when in the second extended position, a portion of the first pushing member 330 extends into a moving path of the first movable member 310 between the first position and the second position, and abuts against and cooperates with the first movable member 310 to limit the first movable member 310 from moving to the first position; in the second retracted position, the first pusher 330 exits the path of travel of the first movable member 310 to enable the first movable member 310 to move to the first position.

In this embodiment, the safety structure of the locking bolt 200 further includes a first pushing member 330, and the first pushing member 330 is movably disposed on the locking bolt 200 to move between a second extended position and a second retracted position. In the second extended position, a portion of the first pusher 330 extends into a path of movement of the first movable member 310 between the first and second positions and cooperates in abutment with the first movable member 310 to limit movement of the first movable member 310 to the first position such that the locking bolt 200 cannot be locked. In the second, retracted position, the first pusher 330 exits the path of travel of the first movable member 310 to bypass movement of the first movable member 310 to enable the first movable member 310 to move to the first position to enable the locking bolt 200 to be locked.

When the bolt 200 is inserted into the lock hole, the first pushing member 330 can directly push the first pushing member 330 conveniently, and the bolt 200 does not need to be stretched when the first pushing member 330 extends out of the surface of the bolt 200. In the second retracted position, the first pusher 330 is fully or mostly retracted to the bolt 200.

The locking bolt 200 has a receiving cavity 211, and the first pushing member 330 is installed in the receiving cavity 211. The receiving cavity 211 is communicated with an inner cavity of the avoiding gap, the receiving cavity 211 penetrates through the head of the lock tongue 200 and is formed with a second opening 212, and the first pushing member 330 can extend out of the surface of the lock tongue 200 through the second opening 212 and retract to the lock tongue 200. The first movable member 310 is rotatably connected to the latch tongue 200 via the second rotating shaft 220. The first pushing member 330 has a first guide slot 331 therethrough, and the second rotating shaft 220 passes through the first guide slot 331 and moves along the first guide slot 331, so as to improve the direction accuracy of the first pushing member 330 during moving.

The first pushing member 330 is provided with a third abutting portion 332, the first movable member 310 is provided with a fourth abutting portion 312, and the third abutting portion 332 and the fourth abutting portion 312 are arranged in an overlapping manner in the moving direction of the first movable member 310. When the first pushing member 330 is in the second extended position, the third abutting portion 332 extends into a moving path of the first moving member 310 between the first position and the second position, and abuts against and cooperates with the fourth abutting portion 312 to limit the first moving member 310 from moving to the first position; when the first pusher 330 is in the second retracted position, the third abutment 332 exits the path of travel of the first movable member 310 to enable the first movable member 310 to move to the first position, where the third abutment 332 is located on the downstream side of the path of travel of the first movable member 310 in the retraction direction.

The first movable member 310 is provided with a pushing engagement portion 313, and the pushing portion 1521 drives the movable member to switch from the first position to the second position by pushing the pushing engagement portion 313. The urging engagement portion 313 and the fourth abutment portion 312 are respectively located at both ends of the first movable member 310.

In some embodiments of the present application, the safety structure of the locking tongue 200 further includes a first elastic structure, two ends of which respectively abut against the first movable member 310 and the first pushing member 330, and provide the first movable member 310 with an elastic force moving toward the first position and an elastic force moving toward the second protruding position toward the first pushing member 330.

In the present embodiment, the first movable member 310 can be provided with an elastic force moving towards the first position and an elastic force moving towards the second protruding position by the first elastic structure, specifically: when the first pushing member 330 is switched from the second extending position to the second retracting position, the first movable member 310 can move to the first position under the driving of the elastic force provided by the first elastic structure; when the first movable member 310 is located at the second position and the pushing engagement between the pushing member and the first pushing member 330 is released, the first pushing member 330 can move to the second extending position under the driving of the elastic force provided by the first elastic structure.

The first elastic structure may be a first torsion spring 320, the first torsion spring 320 is sleeved on the second rotating shaft 220, and two ends of the first torsion spring 320 are respectively abutted against the first moving member 310 and the first pushing member 330.

In some embodiments of the present application, the lock case 100 is further provided with a handle rotation shaft 140 and a transmission assembly, the handle rotation shaft 140 is drivingly connected to both the bolt 200 and the first movable member 310 through the transmission assembly, and the handle rotation shaft 140 is used for rotatably connecting the indoor rotary handle 400 to the lock case 100;

when the handle rotating shaft 140 rotates from the initial position to the first preset angle along the unlocking direction, the transmission assembly drives the first movable member 310 to rotate under the driving of the handle rotating shaft 140, so that the first movable member 310 rotates to the second position; when the handle rotating shaft 140 rotates in the unlocking direction to continue to rotate by a second preset angle, the transmission assembly drives the latch bolt 200 to rotate to the first retraction position under the driving of the handle rotating shaft 140.

In this embodiment, the latch tongue 200 and the first movable member 310 are both rotatably disposed on the lock case 100. The lock case 100 is further provided with a handle rotating shaft 140 and a transmission assembly, wherein the handle rotating shaft 140 is drivingly connected with the bolt 200 and the second pushing member 152 through the transmission assembly so as to drive the bolt 200 and the first movable member 310 to rotate.

When the handle rotating shaft 140 rotates from the initial position to the first preset angle along the unlocking direction, the rotation of the handle rotating shaft 140 drives the transmission assembly to move, and the transmission assembly drives the first movable member 310 to rotate to the second position when moving. When the handle rotating shaft 140 rotates along the unlocking direction to continue to rotate by a second preset angle, the rotation of the handle rotating shaft 140 continues to drive the transmission assembly to move, and the transmission assembly drives the bolt 200 to rotate to the first retraction position under the drive of the handle rotating shaft 140. It should be appreciated that the first movable member 310 rotates with the latch bolt 200 while the handle rotation shaft 140 rotates in the unlocking direction to continue to rotate by the second preset angle.

The first preset angle can be smaller than the second preset angle, and the specific angle value can be reasonably set according to actual requirements.

The indoor rotation handle 400 is mounted on the handle rotation shaft 140, and the indoor rotation handle 400 rotates to drive the handle rotation shaft 140 to rotate. The initial position of the handle rotation shaft 140 is a position in which the indoor rotary handle 400 is in a state where no external force is applied, and the latch tongue 200 is in the first extended position.

In this embodiment, by rotating the handle rotating shaft 140 in the unlocking direction, the lock of the latch bolt 200 can be released and the latch bolt 200 retracts after the lock is released, so that the operation is simple and the user experience is good.

Referring to fig. 4-5, in some embodiments of the present application, a transmission assembly includes:

the first transmission piece 151, the first transmission piece 151 is sleeved on the handle rotating shaft 140, and the first transmission piece 151 is provided with a first driving part 1511;

the second pushing member 152 is provided with a pushing portion 1521 used for being pushed and matched with the first movable member 310, the second pushing member 152 is rotatably arranged on the lock case 100, and the first movable member 310 is pushed by the pushing portion 1521 to rotate from the first position to the second position in the rotating process;

the first rotating member 153 is rotatably connected to the lock case 100, and the first rotating member 153 is provided with an accommodating groove 1531 and a first driving matching part 1532 for matching with the first driving part 1511;

the second transmission member 154 is connected to the latch tongue 200, one end of the second transmission member 154 is inserted into the accommodating groove 1531, and a first gap 1541 is formed between the insertion end of the second transmission member 154 and a groove wall of the accommodating groove 1531, the first gap 1541 is used for enabling the first transmission member 153 to avoid the second transmission member 154 when the handle rotating shaft 140 rotates by a first preset angle;

when the handle rotating shaft 140 rotates by a first preset angle, the handle rotating shaft 140 drives the first transmission member 151 to rotate, so that the first transmission member 151 drives the first rotation member 153 to rotate through the cooperation between the first driving portion 1511 and the first driving engagement portion 1532, so that the first rotation member 153 drives the second pushing member 152 to rotate, and the first movable member 310 rotates to the second position; when the handle rotating shaft 140 rotates by the second preset angle, the handle rotating shaft 140 drives the first transmission member 151 to rotate, so that the first transmission member 151 drives the first transmission member 153 to rotate through the cooperation between the first driving portion 1511 and the first driving matching portion 1532, so that the first transmission member 153 drives the second transmission member 154 to move, and the second transmission member 154 drives the lock tongue 200 to rotate to the first retracted position.

In the present embodiment, the transmission assembly includes a first transmission member 151, a second transmission member 154, a second pushing member 152 and a first rotating member 153. The first transmission member 151 is sleeved on the handle rotation shaft 140 and can rotate along with the handle rotation shaft 140. The first rotating member 153 is provided with a first driving portion 1511. The first rotating member 153 is rotatably connected to the lock housing 100 by a third rotating shaft 1533, the first rotating member 153 has a receiving cavity 1531 and a first driving engagement portion 1532, and the first driving engagement portion 1532 is configured to be in driving engagement with the first driving portion 1511. The second pushing member 152 is rotatably disposed on the lock case 100 and has a pushing portion 1521, and the second pushing member 152 pushes the first movable member 310 to rotate from the first position to the second position through the pushing portion 1521 in the rotating process. The second transmission member 154 is connected to the latch tongue 200, one end of the second transmission member 154 is inserted into the receiving groove 1531, and a first gap 1541 is formed between the insertion end of the second transmission member 154 and a groove wall of the receiving groove 1531, the first gap 1541 is used for the first transmission member 153 to avoid the second transmission member 154 when the handle rotating shaft 140 rotates by a first predetermined angle.

The process of the handle rotating shaft 140 driving the first movable member 310 and the latch bolt 200 to rotate through the transmission assembly is as follows:

when the handle rotating shaft 140 rotates by a first preset angle, the handle rotating shaft 140 drives the first transmission member 151 to rotate, the first transmission member 151 rotates by driving the first rotation member 153 to rotate through the cooperation between the first driving portion 1511 and the first driving engagement portion 1532, the first rotation member 153 drives the second pushing member 152 to rotate again when rotating, and the second pushing member 152 rotates to rotate the first movable member 310 from the first position to the second position, so that the lock of the lock tongue 200 is released. During the rotation of the first rotating member 153 driven by the first transmission member 151, the first rotating member 153 does not drive the second transmission member 154 to move due to the existence of the first gap 1541, and the lock tongue 200 does not move.

When the handle rotating shaft 140 continues to rotate to the second preset angle along the unlocking direction, the handle rotating shaft 140 drives the first transmission member 151 to continue to rotate, and when the first transmission member 151 continues to rotate, the first transmission member 153 drives the second transmission member 154 to rotate through the cooperation between the first driving portion 1511 and the first driving matching portion 1532, so that the second transmission member 154 drives the lock tongue 200 to rotate to the first retraction position, thereby unlocking the lock tongue. The first movable member 310 rotates along with the latch tongue 200, and the latch tongue 200 is not locked.

The first transmission member 151 may be a transmission wheel, and the first driving portion 1511 may be a first protrusion protruding from an outer periphery of the transmission wheel. The first rotating member 153 may be a rotating rack, a first driving engagement portion 1532 is disposed on a side of the rotating rack close to the first driving portion 1511, and the first driving engagement portion 1532 and the first driving portion 1511 can engage with each other, so that the driving wheel drives the rotating rack to rotate around the third rotating shaft 1533 through the engagement of the first driving engagement portion 1532 and the first driving portion 1511 when rotating along with the handle rotating shaft 140. The first driving engagement portion 1532 may be a second protrusion protruding from the outer side of the rotating frame, and may be in the form of a block, a plate, or the like, which is not limited in this application. The connection between the first driving engagement portion 1532 and the rotating frame may be a fixed connection or an integral connection, which is not limited in this application.

In some embodiments of the present application, the bolt 200 and the second pushing member 152 are both rotatably connected to the lock case 100 through the first rotating shaft 160, which not only simplifies the structure, but also helps the second pushing member 152 to push and engage the bolt 200.

In some embodiments of the present application, the latch bolt 200 includes a bolt body 210 and a first rotation shaft connection part 230, the bolt 200 is rotatably connected to the first rotation shaft 160 through the first rotation shaft connection part 230, a second transmission piece 154 is connected to the first rotation shaft connection part 230, and the second transmission piece 154 and the bolt body 210 are respectively located at two sides of the first rotation shaft 160 to form a first lever structure;

and/or the second pushing member 152 further includes a second spindle connecting portion 1522 and a second driving matching portion 1523, the pushing portion 1521 and the second driving matching portion 1523 are both connected to the second spindle connecting portion 1522, and the pushing portion 1521 and the second driving matching portion 1523 are respectively located at two sides of the first spindle 160 to form a second lever structure.

In this embodiment, the second transmission piece 154 and the bolt body 210 are respectively located at two sides of the first rotating shaft 160, so that the overall structure formed by the bolt 200 and the second transmission piece 154 is a first lever structure, which not only facilitates driving of the bolt 200, but also helps to reduce the driving force required to be applied when the transmission assembly drives the bolt 200 to rotate; and/or, the pushing portion 1521 and the second driving matching portion 1523 are respectively located at two sides of the first rotating shaft 160, so that the second pushing member 152 is a second lever structure, which is configured to facilitate driving of the first movable member 310 and also help to reduce the driving force required to be applied by the transmission assembly when the transmission assembly drives the first movable member 310 to rotate.

The second transmission member 154 may include a rod portion 1543 and a connecting portion 1542, one end of the connecting portion 1542 is rotatably connected to the first rotating shaft 160, and the other end is connected to the rod portion 1543, and one end of the rod portion 1543 is inserted into the receiving groove 1531. The connecting portion 1542 may be block-shaped, plate-shaped, or the like, which is not limited in the present application.

In some embodiments of the present application, a second elastic structure is disposed between the lock case 100 and the bolt 200, and the second elastic structure is abutted against the lock case 100 and the bolt 200 respectively to increase the elastic force of the bolt 200 moving towards the first extending position, so that the bolt 200 automatically returns to the first extending position from the first retracting position when the external force of the rotating handle is removed.

Wherein, the second elastic structure may be a second torsion spring 170. When the latch tongue 200 is rotatably connected to the first rotating shaft 160, the second torsion spring 170 is sleeved with the first rotating shaft 160, and two ends of the second torsion spring 170 are respectively abutted to the lock case 100 and the latch tongue 200.

In some embodiments of the present application, the number of the first rotating members 153 is two, the second transmission member 154 is located between the two first rotating members 153, two ends of the first rotating members 153 are respectively inserted into the accommodating grooves 1531 of the two first rotating members 153, the first transmission member 151 is provided with two first driving portions 1511, and the two first driving portions 1511 are respectively matched with the first driving portions 1511 of the two first rotating members 153 in a one-to-one correspondence manner.

In this embodiment, by providing two first rotating members 153, two ends of the first rotating members 153 are respectively inserted into the accommodating grooves 1531 of the two first rotating members 153, the first rotating member 151 is provided with two first driving portions 1511, the two first driving portions 1511 are respectively matched with the first driving portions 1511 of the two first rotating members 153 in a one-to-one correspondence manner, not only can the lock meet the requirement of installation of a left door and a right door, and the universality of the lock is improved, but also the transmission assembly can drive the lock tongue 200 and the first moving member 310 more stably, thereby avoiding the problem that the second transmission member 154 deflects under the driving of the single first rotating member 153.

It should be understood that when the lock is installed on a left-handed door or a right-handed door, the unlocking directions of the handle rotation are opposite, but because the number of the first rotating members 153 is two and the first rotating member 151 is provided with two first driving portions 1511, and meanwhile, the two first driving portions 1511 are respectively matched with the first driving portions 1511 of the two first rotating members 153 in a one-to-one correspondence manner, the handle rotation can drive the first moving member 310 and the latch tongue 200 to rotate when the handle rotation is in the initial position along the forward and reverse directions, and then the lock of the latch tongue 200 is released and the latch tongue 200 retracts.

In some embodiments of the present application, the third torsion spring 180 is sleeved on the handle rotation shaft 140, the lock case 100 is provided with a stopper 190, the stopper 190 is located between two ends of the third torsion spring 180, and any end of the third torsion spring 180 can be in backstop fit with the stopper 190 in the rotation direction along the handle rotation shaft 140 to provide elastic force for the handle rotation shaft 140 to rotate towards the initial position, so that when the handle rotation shaft 140 rotates at the initial position, one end of the third torsion spring 180 is in backstop fit with the stopper 190 to enable the third torsion spring 180 to provide elastic force for the handle rotation shaft 140, so as to drive the handle rotation shaft 140 to rotate back to the initial position.

In some embodiments of the present application, the lock case 100 is further provided with a safety lock 500 and a second rotating member 530, the safety lock 500 includes a lock cylinder 510 and a third pushing member 520, the third pushing member 520 is disposed inside the lock cylinder 510 and rotates together with the lock cylinder 510, the third pushing member 520 is disposed eccentrically with respect to an axis of the lock cylinder 510, the second rotating member 530 is rotatably disposed in the lock case 100, the second rotating member 530 is provided with a second driving portion 531 and a third driving engagement portion 532, the third pushing member 520 is in driving engagement with the third driving engagement portion 532 to drive the second rotating member 530 to rotate, and when the second rotating member 530 rotates, the second driving portion 531 is engaged with the first driving engagement portion 1532 to drive the first rotating member 153 to rotate.

In the present embodiment, the lock body is further provided with a safety lock 500, the safety lock 500 is disposed on the lock body, and the safety lock 500 can be unlocked by a mechanical key. The safety lock 500 comprises a lock cylinder 510 and a third pushing member 520, the third pushing member 520 is arranged on the inner side of the lock cylinder 510 and rotates together with the lock cylinder 510, the third pushing member 520 is eccentrically arranged relative to the axis of the lock cylinder 510, the second rotating member 530 is rotatably arranged on the lock case 100 through a fourth rotating shaft, the second rotating member 530 is provided with a second driving portion 531 and a third driving matching portion 532, the second driving portion 531 is matched with the first driving matching portion 1532, and the third pushing member 520 is matched with the third driving matching portion 532.

When the mechanical key is used for unlocking, the key can drive the lock cylinder 510 to rotate, the lock cylinder 510 can drive the third pushing piece 520 to eccentrically rotate when rotating, the third pushing piece 520 can be matched with the third driving matching part 532 of the second rotating piece 530 to drive the second rotating piece 530 to rotate when eccentrically rotating, the second rotating piece 530 can be matched with the first driving matching part 1532 through the second driving part 531 to drive the first rotating piece 153 to rotate when rotating, and the first rotating piece 153 can drive the first moving piece 310 to move to the second position and drive the lock bolt 200 to move to the first retraction position when rotating.

The second driving portion 531 and the third driving matching portion 532 are respectively located at two sides of the fourth rotating shaft, so that the second rotating member 530 has a third lever structure, which not only facilitates driving the first rotating member 153, but also helps to reduce the driving force required to be applied when the second rotating member 530 drives the first rotating member 153 to rotate.

The embodiment of the application also provides a lockset, which comprises a lock body.

In some embodiments of the present application, the lock further comprises a pushing member, the pushing member is configured to be mounted in the lock hole, and when the lock tongue 200 is located in the lock hole, the pushing member pushes the first pushing member 330 in the safety structure of the lock tongue 200, so that the first pushing member 330 is located in the second retracted position.

The pushing member may be a block structure, and the like, which is not limited in the present application.

It will be understood that any orientation or positional relationship indicated above with respect to the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., is based on the orientation or positional relationship shown in the drawings and is for convenience in describing and simplifying the invention, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered limiting of the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means three or more unless otherwise specified.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A lock body, comprising:

a lock case;

the lock comprises a lock shell, a lock tongue and a lock bolt, wherein the lock tongue is movably arranged on the lock shell so as to move between a first extending position and a first retracting position;

the bolt safety structure comprises a first moving part, the first moving part is movably arranged on the bolt to move between a first position and a second position, and when the bolt is located at the first extending position and the first moving part is located at the first position, the first moving part is matched with the lock shell to limit the retraction of the bolt; when the lock tongue is located at the first extending position and the first movable piece is located at the second position, the lock tongue can retract relative to the lock tongue.

2. A lock body according to claim 1, characterized in that the lock housing is provided with a first abutment and the first moveable member is provided with a second abutment;

when the bolt is located at the first extending position and the first movable member is located at the first position, the first abutting part and the second abutting part are in abutting fit in the retraction direction of the bolt so as to limit retraction of the bolt; when the lock tongue is located at the first extending position and the first movable piece is located at the second position, the second abutting part avoids the first abutting part so that the lock tongue can retract relative to the lock tongue.

3. The lock of claim 1, wherein the deadbolt guard structure further comprises a first pusher member disposed on the deadbolt, the first pusher member having a second extended position extending beyond a surface of the deadbolt and a second retracted position retracted into the deadbolt, the first pusher member movably disposed to move between the second extended position and the second retracted position;

when the first pushing piece is in the first extending position, the first pushing piece is partially extended into a moving path of the first movable piece between the first position and the second position and is in abutting fit with the first movable piece so as to limit the first movable piece from moving to the first position; when the first pushing piece is in the first retraction position, the first pushing piece is pushed out of the moving path of the first movable piece, so that the first movable piece can move to the first position.

4. The lock of claim 3, wherein said deadbolt guard structure further comprises a first resilient structure having opposite ends abutting said first movable member and said first push member, respectively, and providing a spring force to said first movable member moving toward said first position and a spring force to said first push member moving toward said second extended position.

5. The lock of claim 4, wherein said first resilient structure is a first torsion spring, and both ends of said first torsion spring abut said first movable member and said first urging member, respectively.

6. A lock according to any of claims 1-5, characterized in that the first movable member is pivotally connected to the locking bolt for movement between the first and second positions.

7. A lock body according to claim 6, wherein the bolt is rotatably arranged in the housing for movement between the first extended position and the first retracted position.

8. The lock body of claim 7, wherein the lock shell is further provided with a handle rotating shaft and a transmission assembly, the handle rotating shaft is in driving connection with the bolt and the first movable member through the transmission assembly, and the handle rotating shaft is used for allowing an indoor rotating handle to be rotatably connected to the lock shell;

when the handle rotating shaft rotates by a first preset angle from an initial position along an unlocking direction, the transmission assembly drives the first movable member to rotate under the driving of the handle rotating shaft so as to enable the first movable member to rotate to the second position; when the handle rotating shaft rotates along the unlocking direction and continues to rotate for a second preset angle, the transmission assembly drives the lock tongue to rotate to the first retraction position under the driving of the handle rotating shaft.

9. The lock body of claim 8, wherein said transmission assembly comprises:

the second pushing piece is provided with a pushing part which is used for being matched with the first movable piece in a pushing mode, can be rotatably arranged on the lock shell, and pushes the first movable piece to rotate from the first position to the second position through the pushing part in the rotating process;

the first rotating piece is rotatably connected to the lock shell and provided with an accommodating groove and a first driving matching part matched with the first driving part;

the second transmission piece is connected to the lock tongue, one end of the second transmission piece is inserted into the accommodating groove, a first gap is formed between the insertion end of the second transmission piece and the groove wall of the accommodating groove, and the first gap is used for avoiding the second transmission piece when the first transmission piece rotates during the period that the handle rotating shaft rotates by the first preset angle;

when the handle rotating shaft rotates by the first preset angle, the handle rotating shaft drives the first transmission piece to rotate, so that the first transmission piece drives the first rotation piece to rotate through the matching of the first driving part and the first driving matching part, and the first rotation piece drives the second pushing piece to rotate so as to enable the first moving piece to rotate to the second position; when the handle rotating shaft rotates by the second preset angle, the handle rotating shaft drives the first transmission piece to rotate, so that the first transmission piece drives the first transmission piece to rotate through the matching of the first driving part and the first driving matching part, and the first transmission piece drives the second transmission piece to move, so that the second transmission piece drives the lock tongue to rotate to a first retraction position.

10. A lock body according to claim 9, wherein the bolt and the second push member are both rotatably connected to the housing by a first shaft.

11. The lock body of claim 10, wherein the bolt comprises a bolt body and a first rotating shaft connecting part, the bolt is rotatably connected to the first rotating shaft through the first rotating shaft connecting part, the second transmission member is connected to the first rotating shaft connecting part, and the second transmission member and the bolt body are respectively located at two sides of the first rotating shaft to form a first lever structure;

12. The lock of claim 9, wherein the number of the first rotating members is two, the second transmission member is located between the two first rotating members, and two ends of the first rotating members are respectively inserted into the receiving slots of the two first rotating members, the first transmission member is provided with two first driving portions, and the two first driving portions are respectively matched with the first driving portions of the two first rotating members in a one-to-one correspondence manner.

13. The lock body of claim 9, wherein the lock housing further comprises a safety lock and a second rotating member, the safety lock comprises a lock cylinder and a third pushing member, the third pushing member is disposed inside the lock cylinder and rotates with the lock cylinder, the third pushing member is disposed eccentrically with respect to an axis of the lock cylinder, the second rotating member is rotatably disposed in the lock housing, the second rotating member is provided with a second driving portion and a third driving matching portion, the third pushing member is in driving matching with the third driving matching portion to drive the second rotating member to rotate, and when the second rotating member rotates, the second driving portion is matched with the first driving matching portion to drive the first rotating member to rotate.

14. A lock comprising a lock body according to any one of claims 1 to 13.

15. The lock of claim 14, further comprising a pusher configured to fit in a lock cavity, wherein the pusher pushes a first pusher in the deadbolt lock mechanism when the deadbolt is in the lock cavity such that the first pusher is in the second, retracted position.