CN114033252B - Clutch and lock body - Google Patents

Abstract

The invention provides a clutch and a lock body. Wherein, the clutch includes: a first connecting member; a second connecting member; the first connecting piece and the third connecting piece are provided with a first bulge and a second bulge respectively; a clutch member having a clutch projection; when the clutch piece is positioned at the first butt joint position, the clutch bulge is circumferentially aligned with the first bulge, and when the first connecting piece or the third connecting piece rotates towards the first direction, the second connecting piece is driven to rotate; when the first connecting piece or the third connecting piece rotates to a second direction opposite to the first direction, the second connecting piece is not driven to rotate; when the clutch piece is positioned at the second butt joint position, the clutch bulge is circumferentially aligned with the second bulge, and the first connecting piece or the third connecting piece does not drive the second connecting piece to rotate when rotating towards the first direction; when the first connecting piece or the third connecting piece rotates towards the second direction, the second connecting piece is driven to rotate. The invention solves the problem that the dead bolt is easy to be mistakenly knocked out when the lock body in the prior art is not closed.

Description

Clutch and lock body

Technical Field

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

Background

At present, a lock body on the market is usually designed only in the direction of pressing down to open a door when in gear engagement, and a dead bolt can be directly punched out when being lifted. In the state of not closing the door, if the user carelessly drives out the square bolt, the square bolt can strike the door frame when closing the door, and damage is caused to the door and the lock.

Disclosure of Invention

The invention mainly aims to provide a clutch and a lock body, and aims to solve the problem that a dead bolt is easily mistakenly knocked out when a door is not closed by the lock body in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a clutch including: a first connecting member; a second connecting member; the first connecting piece, the second connecting piece and the third connecting piece are axially and sequentially overlapped, the surfaces of the first connecting piece and the third connecting piece facing the second connecting piece are respectively provided with a first bulge and a second bulge, and the distances from the first bulge to the center of the clutch are different from the distances from the second bulge to the center of the clutch; the clutch piece is radially and movably arranged on the second connecting piece and provided with a clutch bulge, the first bulge and the second bulge are respectively positioned on two sides of the clutch bulge, and the clutch piece is provided with a first butt joint position and a second butt joint position; when the clutch piece is positioned at the first butt joint position, the clutch bulge is circumferentially aligned with the first bulge and staggered with the second bulge, when the first connecting piece or the third connecting piece rotates towards the first direction, the first bulge extrudes the clutch bulge, and the first connecting piece or the third connecting piece drives the second connecting piece to rotate; when the first connecting piece or the third connecting piece rotates to a second direction opposite to the first direction, the clutch bulge and the second bulge are staggered, and the first connecting piece or the third connecting piece does not drive the second connecting piece to rotate; when the clutch piece is positioned at the second butt joint position, the clutch bulge is circumferentially aligned with the second bulge and staggered with the first bulge, when the first connecting piece or the third connecting piece rotates towards the first direction, the clutch bulge is staggered with the first bulge, and the first connecting piece or the third connecting piece does not drive the second connecting piece to rotate; when the first connecting piece or the third connecting piece rotates towards the second direction, the second protrusion extrudes the clutch protrusion, and the first connecting piece or the third connecting piece drives the second connecting piece to rotate.

Furthermore, the clutch also comprises a pin, the pin is arranged between one of the first connecting piece and the third connecting piece and the second connecting piece, the first connecting piece or the third connecting piece drives the second connecting piece to synchronously rotate through the pin when rotating towards the second direction, and the third connecting piece or the first connecting piece drives the second connecting piece to rotate through the extrusion clutch bulge when rotating towards the first direction.

Further, the pin is movably arranged and can be switched between positions extending into the first connecting piece and positions extending into the third connecting piece, so that the matching relation between the first connecting piece and the second connecting piece and the matching relation between the third connecting piece and the second connecting piece are changed.

Furthermore, the side face of one end, extending into the second connecting piece, of the clutch piece extends along the axial direction of the clutch, a clutch bulge is formed, clutch bulges are arranged on two sides, facing the first connecting piece and the third connecting piece, of the clutch piece, and the clutch bulges on the two sides are respectively matched with the first bulge and the second bulge.

Furthermore, the clutch piece is provided with an avoidance concave part, when the first protrusion or the second protrusion is not circumferentially aligned with the clutch protrusion, the first protrusion or the second protrusion is circumferentially aligned with the avoidance concave part, and the first protrusion or the second protrusion moves in the avoidance concave part and does not drive the second connecting piece to rotate.

Further, the clutch further comprises a reset piece, wherein the reset piece is connected with the second connecting piece and provides reset force for the second connecting piece to rotate towards the initial state.

Furthermore, the clutch also comprises a clutch core matched with the unlocking key, the clutch core is rotatably arranged, the second connecting piece is sleeved outside the clutch core, the peripheral surface of the clutch core is provided with a plurality of steps with different depths, and when the clutch core rotates, the step surfaces of the steps extrude the clutch piece and enable the clutch piece to be switched between the first butt joint position and the second butt joint position.

According to another aspect of the present invention, there is provided a lock body comprising: a latch bolt; in the clutch, the clutch is in driving fit with the lock tongue, and the first connecting piece and the third connecting piece of the clutch are respectively connected with each handle and driven by the handles to rotate towards the first direction or the second direction so as to drive the lock tongue to unlock; and the driving assembly is in driving connection with the clutch piece of the clutch and can drive the clutch piece to move between the first butt-joint position and the second butt-joint position.

Furthermore, the lock body also comprises a detection assembly, and the detection assembly is positioned on the motion path of at least one of the first connecting piece, the second connecting piece, the third connecting piece and the lock tongue and can detect the state of at least one of the first connecting piece, the second connecting piece, the third connecting piece and the lock tongue.

Furthermore, the lock body further comprises an electric control plate, the detection assembly and the driving assembly are electrically connected with the electric control plate, and the electric control plate receives the state signals detected by the detection assembly and controls the action of the driving assembly according to the state signals.

Further, the lock body still includes the auto-lock subassembly, and the auto-lock subassembly includes: the self-locking bolt is movably arranged and is provided with a stopping position extending into the movement path of the bolt and an avoiding position retreating from the movement path of the bolt; and at least one part of the self-locking driving assembly can extend into or withdraw from the self-locking bolt so as to lock the self-locking bolt at the stopping position or unlock the self-locking bolt from the stopping position.

By applying the technical scheme of the invention, the clutch piece is arranged, and the clutch bulge of the clutch piece is in gear engagement or free fit with the first bulge and the second bulge on the first connecting piece or the third connecting piece as required, specifically, when the clutch piece is positioned at the first butt joint position, the clutch bulge is circumferentially aligned with the first bulge and staggered with the second bulge, at the moment, the clutch bulge can be in extrusion fit with the first bulge but cannot be matched with the second bulge, and because the first bulge is positioned on one side of the clutch bulge, when the first connecting piece or the third connecting piece rotates towards the first direction, the first bulge can be extruded, so that the effect that the first connecting piece or the third connecting piece drives the second connecting piece to rotate is realized; if the first connecting piece or the third connecting piece rotates towards the second direction, the clutch bulge and the first bulge are separated at the moment, the two parts do not have the extrusion driving effect, and the clutch bulge and the second bulge are staggered, so that the first connecting piece or the third connecting piece does not drive the second connecting piece to rotate, namely, when the clutch piece is positioned at the first butt joint position, the first direction of the first connecting piece or the third connecting piece is engaged with the gear, and the second direction is free. Similarly, when the clutch member is located at the second butt joint position, the clutch projection is circumferentially aligned with the second projection and is staggered with the first projection, and at the moment, if the first connecting member or the third connecting member rotates towards the first direction, the clutch projection is separated from the second projection, the two projections are not driven by extrusion, and the first connecting member or the third connecting member does not drive the second connecting member to rotate because the clutch projection is staggered with the first projection; if the first connecting piece or the third connecting piece rotates towards the second direction, the second protrusion can extrude the clutch protrusion, so that the first connecting piece or the third connecting piece drives the second connecting piece to rotate, namely, when the clutch piece is located at the second butt joint position, the second direction of the first connecting piece or the third connecting piece is engaged with the gear, and the first direction is free. Above-mentioned mode of setting up makes the clutch form and pushes down and lift two free modes, and the lock body is inside and outside handle can not push down when unblanking and can lift and beat the spring bolt when using, and outside handle can push down when unblanking inside and outside handle lift and all can not beat the spring bolt to the condition that the spring bolt was beaten when having avoided personnel's maloperation to lead to not closing the door, reliability and the security of guaranteeing to use.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic construction of the clutch of the present invention;

fig. 2 is a schematic structural diagram of a lock body according to a first embodiment of the invention;

figure 3 shows a schematic view of the lock body of figure 2 with the clutch member in a first docking position;

figure 4 shows a schematic view of the lock body of figure 3 with the third connecting member rotating the second connecting member to strike the square bolt;

figure 5 shows a schematic view of the lock body of figure 2 with the clutch member in a second docking position;

FIG. 6 is a schematic diagram showing the engagement of the clutch member of the clutch of FIG. 2 with a first coupling member;

FIG. 7 is a schematic diagram showing the engagement of the clutch member of the clutch of FIG. 2 with a third connecting member;

figure 8 shows a schematic structural view of a lock body in a second embodiment of the invention when a self-locking bolt obstructs retraction of a dead bolt;

figure 9 shows a schematic structural view of the self-locking driving assembly of the lock body in figure 8 when the self-locking bolt is unlocked;

figure 10 shows a schematic view of the lock body of figure 8 when the deadbolt blocks extension of the dead bolt.

Wherein the figures include the following reference numerals:

10. a first connecting member; 11. a first protrusion; 20. a second connecting member; 21. a connecting body; 22. a latch toggle piece; 23. a dead bolt transmission part; 30. a third connecting member; 31. a second protrusion; 40. a clutch member; 41. a clutch projection; 42. avoiding the concave part; 50. a reset member; 60. a clutch core; 70. a latch bolt; 80. a drive assembly; 90. a detection component; 100. an electric control board; 110. a self-locking assembly; 111. a self-locking bolt; 112. a self-locking drive assembly.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to inner and outer relative to the profile of the components themselves, but the above directional terms are not intended to limit the invention.

The invention provides a clutch and a lock body, aiming at solving the problem that a dead bolt is easy to be mistakenly knocked out when a lock body in the prior art is not closed.

Example one

The clutch of the lock body shown in fig. 1 to 7 comprises a first connecting piece 10, a second connecting piece 20, a third connecting piece 30 and a clutch piece 40, wherein the first connecting piece 10, the second connecting piece 20 and the third connecting piece 30 are axially overlapped in sequence, the surfaces of the first connecting piece 10 and the third connecting piece 30 facing the second connecting piece 20 are respectively provided with a first bulge 11 and a second bulge 31, and the distances from the first bulge 11 to the center of the clutch to the second bulge 31 are different; the clutch member 40 is radially movably disposed on the second connecting member 20, the clutch member 40 has a clutch projection 41, the first projection 11 and the second projection 31 are respectively located on both sides of the clutch projection 41, and the clutch member 40 has a first butt position and a second butt position; when the clutch member 40 is located at the first butt position, the clutch protrusion 41 is circumferentially aligned with the first protrusion 11 and is staggered with the second protrusion 31, when the first connecting member 10 or the third connecting member 30 rotates in the first direction, the first protrusion 11 presses the clutch protrusion 41, and the first connecting member 10 or the third connecting member 30 drives the second connecting member 20 to rotate; when the first connecting piece 10 or the third connecting piece 30 rotates in a second direction opposite to the first direction, the clutch protrusion 41 and the second protrusion 31 are staggered, and the first connecting piece 10 or the third connecting piece 30 does not drive the second connecting piece 20 to rotate; when the clutch member 40 is located at the second butt joint position, the clutch projection 41 is circumferentially aligned with the second projection 31 and is staggered with the first projection 11, when the first connecting member 10 or the third connecting member 30 rotates towards the first direction, the clutch projection 41 is staggered with the first projection 11, and the first connecting member 10 or the third connecting member 30 does not drive the second connecting member 20 to rotate; when the first connecting member 10 or the third connecting member 30 rotates in the second direction, the second protrusion 31 presses the engaging and disengaging protrusion 41, and the first connecting member 10 or the third connecting member 30 drives the second connecting member 20 to rotate.

In the present embodiment, the clutch member 40 is provided, and the clutch protrusion 41 of the clutch member 40 is engaged with the first protrusion 11 and the second protrusion 31 on the first connecting member 10 or the third connecting member 30 in a gear-engaging or free-engaging manner as required, specifically, as shown in fig. 3, when the clutch member 40 is located at the first engaging position, the clutch protrusion 41 is circumferentially aligned with the first protrusion 11 and is staggered with the second protrusion 31, at this time, the clutch protrusion 41 can be press-engaged with the first protrusion 11 but cannot be engaged with the second protrusion 31, because the first protrusion 11 is located at one side of the clutch protrusion 41, when the first connecting member 10 or the third connecting member 30 rotates in the first direction, the first protrusion 11 can press the clutch protrusion 41, so that the first connecting member 10 or the third connecting member 30 drives the second connecting member 20 to rotate; if the first connecting member 10 or the third connecting member 30 rotates in the second direction, the engaging and disengaging protrusion 41 is separated from the first protrusion 11, and there is no pressing driving function between the engaging and disengaging protrusion 41 and the second protrusion 31, and therefore the first connecting member 10 or the third connecting member 30 does not drive the second connecting member 20 to rotate, that is, when the engaging and disengaging member 40 is located at the first mating position, the first direction engaging portion of the first connecting member 10 or the third connecting member 30 is engaged, and the second direction is free. Similarly, as shown in fig. 5, when the clutch member 40 is located at the second butt position, the clutch projection 41 is circumferentially aligned with the second projection 31 and is offset from the first projection 11, at this time, if the first connecting member 10 or the third connecting member 30 rotates in the first direction, the clutch projection 41 is separated from the second projection 31, there is no pressing action therebetween, and the first connecting member 10 or the third connecting member 30 does not drive the second connecting member 20 to rotate because the clutch projection 41 is offset from the first projection 11; if the first connecting member 10 or the third connecting member 30 rotates in the second direction, the second protrusion 31 can press the clutch protrusion 41, so that the first connecting member 10 or the third connecting member 30 drives the second connecting member 20 to rotate, that is, when the clutch member 40 is located at the second docking position, the second direction of the first connecting member 10 or the third connecting member 30 is engaged and the first direction is free. The arrangement mode enables the clutch to form a pressing and lifting double-free mode, when the outer handle of the lock body is used, the inner handle and the outer handle can lift up to open the lock tongue 70 when the lock body cannot be pressed down to open the lock, and when the outer handle can be pressed down to open the lock, the inner handle and the outer handle can lift up to open the lock tongue 70, so that the situation that the lock tongue 70 is opened when a person is not closed due to misoperation is avoided, and the use reliability and safety are guaranteed.

In the embodiment, the lock body including the clutch is applied to the cabinet body as an example, and accordingly, the lock body is installed on the cabinet door, the first connecting member 10 is engaged with the inner handle, the third connecting member 30 is engaged with the outer handle, the first direction is a direction of lifting the handle, and the second direction is a direction of pressing the handle. According to the matching mode, when the door is closed, the clutch member 40 is located at the first butt joint position, at the moment, the inner handle is lifted up to open the lock tongue 70, and the outer handle is pressed down to unlock the lock body, so that the cabinet door is locked; when the door is opened, the clutch member 40 is located at the second butt joint position, the outer handle is pressed down to unlock the lock body, the cabinet door can be opened, and meanwhile, the inner handle and the outer handle are lifted upwards to prevent the lock tongue 70 from being knocked out, so that the situation that the lock tongue 70 is knocked out when the door is not closed is avoided. The cross-sections in fig. 3 to 5 each show the fitting relationship between the third connector 30 and the second connector 20, and the fitting relationship between the first connector 10 and the second connector 20 is the same. Of course, the specific application scenario of the lock body, the specific matching handles of the first connecting member 10 and the third connecting member 30, etc. can be changed as required, and the above-mentioned effects can also be achieved.

In this embodiment, the first connecting member 10 and the third connecting member 30 are both provided with the first protrusion 11 and the second protrusion 31, and the first connecting member 10 and the third connecting member 30 are symmetrically arranged, that is, the clutch member 40 is engaged with both the first connecting member 10 and the third connecting member 30 simultaneously, when the clutch member 40 is located at the first mating position, the first connecting member 10 and the third connecting member 30 rotate in the first direction, and the first protrusion 11 on each of the first connecting member 10 and the third connecting member 30 drives the second connecting member 20 to rotate; when the clutch member 40 is located at the second docking position, the first connecting member 10 and the third connecting member 30 rotate in the second direction, and the second connecting member 20 is driven to rotate by the respective second protrusions 31.

In order to ensure that the inner handle can be pressed down to unlock the lock body whenever, the clutch of the present embodiment further includes a pin, the pin penetrates between one of the first connecting piece 10 and the third connecting piece 30 and the second connecting piece 20 along the axial direction of the clutch, because the first connecting piece 10 of the present embodiment is matched with the inner handle, the pin of the present embodiment penetrates between the first connecting piece 10 and the second connecting piece 20, and a one-way transmission mode is adopted between the pin and the first connecting piece 10, that is, the inner handle is pressed down, when the first connecting piece 10 rotates towards the second direction, the first connecting piece 10 can extrude the pin to enable the second connecting piece 20 to synchronously rotate towards the second direction, if the first connecting piece 10 rotates towards the first direction, the first connecting piece 10 can be separated from the pin, and the second connecting piece 20 cannot be driven to rotate. Like this, on the one hand, no matter how the position of separation and reunion piece 40 is, interior handle is pushed down and all can drive second connecting piece 20 through the pin and rotate, realizes the unblock, and on the other hand setting of pin can not produce the influence to lifting of interior handle, can't drive second connecting piece 20 through the pin when interior handle lifts promptly and rotate to interior, outer handle all can't drive spring bolt 70 when guaranteeing not closing the door.

It should be noted that when the clutch 40 is located at the second docking position, the way of driving the second connecting member 20 to rotate by the pin when the inner handle is pressed down does not conflict with the way of driving the second connecting member 20 to rotate by the clutch 40, the two can be performed simultaneously, the action results are consistent, and the pin is used for ensuring that the inner handle can be unlocked by pressing down at any time. The third connecting member 30 of the outer handle is engaged with the clutch member 40 by pressing the engaging protrusion 41 to rotate the second connecting member 20.

In the present embodiment, the pin is movably disposed and can be switched between positions of extending into the first connecting member 10 and extending into the third connecting member 30, that is, the pin is retained on the second connecting member 20, and the matching relationship between the first connecting member 10 and the third connecting member 30 can be adjusted and changed as required. Like this, the same first connecting piece 10 of cooperation structure and the mode of setting up of third connecting piece 30 for the clutch of this embodiment can be according to installation needs such as switch door direction and adjust inside and outside direction, first connecting piece 10 both can with interior handle cooperation also can with outer handle cooperation, third connecting piece 30 is the same, only need during the installation according to the demand adjustment pin's of installation direction the position can, thereby the adaptability of clutch has been increased, make the clutch can use in the scene of difference. When the handles of the first connecting member 10 and the third connecting member 30 are exchanged, the aforementioned matching relationship, operation manner, and the like may be exchanged accordingly. Of course, if the pressing-down unlocking of the inner handle is also controlled, the pin is not needed, and at the moment, whether the pressing-down unlocking of the inner handle can be controlled by the clutch piece 40 or not can be controlled.

As shown in fig. 3 to 5, the first projection 11 and the second projection 31 are closely arranged in the radial direction of the clutch, the first projection 11 is closer to the center of the clutch than the second projection 31, and they are circumferentially staggered, and the clutch member 40 is located between the first projection 11 and the second projection 31 in the circumferential direction, so that the radial movement of the clutch member 40 can change the clutch projection 41 between a first butt position engaged with the first projection 11 and a second butt position engaged with the second projection 31. Of course, the specific arrangement between the first protrusion 11 and the second protrusion 31 may be changed as needed.

The clutch member 40 of the present embodiment extends into one end side of the second connecting member 20 along the axial direction of the clutch and forms a clutch protrusion 41, and because the first connecting member 10 and the third connecting member 30 are located at both sides of the second connecting member 20, the clutch member 40 has the clutch protrusion 41 at positions symmetrical to both sides of the first connecting member 10 and the third connecting member 30, so that the clutch member 40 forms a T-shaped structure, and two clutch protrusions 41 are located at opposite ends of the T-shaped structure, so that the clutch protrusions 41 at both sides can be respectively engaged with the first protrusion 11 and the second protrusion 31 on the first connecting member 10 and the third connecting member 30. Of course, the arrangement positions of the clutch protrusions 41 can also be adjusted as required, for example, two clutch protrusions 41 are asymmetrically arranged on both sides of the clutch member 40, and accordingly, the specific arrangement modes of the first protrusions 11 and the second protrusions 31 can be adjusted synchronously, as long as it is ensured that the two clutch protrusions 41 can be respectively matched with the first protrusions 11 and the second protrusions 31 when the clutch member 40 moves radially.

In the present embodiment, in order to avoid interference between the clutch member 40 and the second projection 31 when the clutch member 40 is engaged with the first projection 11, the clutch member 40 is provided with an escape recess 42. When the first protrusion 11 or the second protrusion 31 is not circumferentially aligned with the clutch protrusion 41, the first protrusion 11 or the second protrusion 31 is circumferentially aligned with the avoiding recess 42, and at this time, if the first connecting member 10 or the third connecting member 30 rotates relative to the second connecting member 20, the first protrusion 11 or the second protrusion 31 can move in the avoiding recess 42, so that interference between the first protrusion 11 or the second protrusion 31 and the clutch member 40 is avoided, it is ensured that the corresponding connecting member does not drive the second connecting member 20 to rotate, and the reliability of movement is ensured. As shown in fig. 6 and 7, for the present embodiment, since the clutch member 40 is located close to the center of the clutch member when in the first butt position, at this time, interference may occur between the connection rod portion of the clutch member 40 and the second projection 31, and in order to avoid this, an avoidance recess 42 is provided so that at this time, the avoidance recess 42 is circumferentially aligned with the second projection 31, and the clutch member 40 does not affect the movement of the second projection 31; since the clutch member 40 is far from the center of the clutch when located at the second docking position, the clutch member 40 is separated from the first protrusion 11, and there is naturally no interference therebetween, and if there is interference between the clutch member 40 and the first protrusion 11 at this time, an avoiding recess 42 may be correspondingly provided for avoiding. Of course, when the specific arrangement manner of the first protrusion 11 and the second protrusion 31 is changed, the specific position of the avoidance concave portion 42 and the matched protrusion may be changed correspondingly, and the number of the avoidance concave portions 42 may be only one, or may be a plurality as needed.

In this embodiment, the clutch further includes a reset piece 50, the reset piece 50 is a spring, one end of the reset piece 50 is connected with the second connecting piece 20, and the other end is connected with the inner wall of the lock body, so as to provide a reset force to the initial state rotation for the second connecting piece 20, so that the second connecting piece 20 is always in the initial state when not being driven. It should be noted that the initial state of the second link 20 is a position where the second link 20 is not driven by the first link 10 or the third link 30, that is, a position where the second link 20 does not drive the latch bolt 70 to unlock.

As shown in fig. 1, the clutch further includes a clutch core 60 engaged with the unlocking key, the clutch core 60 is rotatably disposed at the center of the clutch, the first connecting member 10, the second connecting member 20 and the third connecting member 30 are all sleeved outside the clutch core 60, the circumferential surface of the clutch core 60 has a plurality of steps, the plurality of steps includes a first step and a second step, and since the clutch member 40 of the present embodiment has two positions, the number of steps is two, that is, the first step and the second step are described above, and the two steps extend circumferentially and have different depths. The depth of the step here means the distance between the step surface and the center of the clutch core 60, and the step surface is shallower when the distance is larger, and the step surface is deeper when the distance is smaller. Since the first protrusion 11 and the second protrusion 31 are arranged in a direction away from the center of the clutch, the first step is the deepest and the second step is the shallowest. When clutch member 40 is aligned with the step having the deepest depth, i.e., the first step, clutch member 40 has a large movement space due to the depth of the first step, so that clutch member 40 can be switched between the first docking position and the second docking position; when clutch 40 is aligned with the step of the shallowest depth, i.e., the second step, clutch 40 has no space for radial play because the depth of the second step is shallow, so that clutch 40 can only be in one position, i.e., the second docking position. Of course, when the specific arrangement of the first protrusions 11 and the second protrusions 31 is changed, the positions of the steps and the corresponding relationship with the positions of the clutch member 40 may be changed accordingly.

The clutch core 60 of the embodiment has multiple functions, one of which is that when the clutch is installed, the position of the clutch core 60 can be adjusted according to the requirement, if the clutch core 60 is not needed to play a role, the clutch core 60 can be fixedly arranged, the first step of the clutch core is aligned with the clutch member 40, and at the moment, the clutch core 60 does not play a role in controlling the movement of the clutch member 40; if the clutch core 60 needs to play a role, the clutch core 60 is set to be matched with an unlocking key, the unlocking key can drive the clutch core 60 to rotate, two steps of the clutch core 60 can be respectively matched with the clutch piece 40, so that the clutch core 60 can control the clutch piece 40, and the gear engagement conversion of pressing and lifting can be realized. Secondly, the clutch core 60 can play a role in emergency unlocking, and when the clutch core 60 rotates, the step side wall of the clutch core 60 can extrude the clutch member 40, so that the clutch member 40 is switched between the first butt joint position and the second butt joint position, and the emergency unlocking of the clutch is realized. Of course, when the specific arrangement of the first protrusions 11 and the second protrusions 31 is changed, the specific engagement between the clutch core 60 and the clutch member 40 is changed, but the above-mentioned engagement effect can still be achieved.

The step of the present embodiment is formed by a recess opened on the peripheral surface of the clutch core 60, and specifically, the present embodiment is opened with a recess on the peripheral surface of the clutch core 60, so that two steps are formed between the recess and the outer surface of the clutch core 60. The arrangement specific to the present embodiment is such that the bottom surface of the recess serves as a first step and the entire outer surface of the clutch core 60 serves as a second step. Of course, the steps may also be formed by protrusions, the number of steps may also be changed as desired, and correspondingly, the number of recesses may also be changed accordingly.

As shown in fig. 2 to fig. 5, the present embodiment further provides a lock body, which includes a locking tongue 70, and the above-mentioned clutch and driving assembly 80, the clutch is in driving fit with the locking tongue 70, the first connecting member 10 and the third connecting member 30 of the clutch are respectively connected with each handle, and are driven by the handle to rotate towards the first direction or the second direction, so as to drive the locking tongue 70 to unlock; the drive assembly 80 is drivingly connected to the clutch member 40 of the clutch and is configured to drive the clutch member 40 between a first docking position and a second docking position.

The latch tongue 70 of the present embodiment includes a plurality of types, specifically including a latch tongue, an end latch tongue, and a dead bolt, wherein the latch tongue and the dead bolt both play a locking role, the dead bolt plays a main locking role, and the end latch tongue is used for accurately detecting the opening and closing actions of the cabinet door. Correspondingly, the second connecting member 20 of the present embodiment also includes a plurality of sub-components, specifically, includes a connecting body 21, a latch toggle member 22 and a latch driver member 23, wherein the connecting body 21 is a main portion of the second connecting member 20, the clutch member 40, the first connecting member 10 and the third connecting member 30 are all engaged with the connecting body 21, and the latch toggle member 22 and the latch driver member 23 are also engaged with the connecting body 21 and rotate under the pressing of the connecting body 21.

The latch toggle 22 and the connecting body 21 of the present embodiment are engaged in a one-way transmission manner. Specifically, the end surface of the connecting body 21 and the inner side of the latch toggle 22 are provided with protrusions, and the protrusions of the latch toggle 22 and the connecting body 21 are located on the same rotation path. Thus, when the handle is pressed down, the connecting body 21 rotates, the lug on the connecting body extrudes the lug on the latch bolt stirring piece 22, the connecting body 21 drives the latch bolt stirring piece 22 to rotate together through extrusion transmission among the lugs, and one end of the latch bolt stirring piece 22 extends into a motion path of the latch bolt, so that the latch bolt is extruded and driven to retract into the lock body to be unlocked when the latch bolt stirring piece 22 rotates; when the handle is released, the connecting body 21 reversely rotates to reset, at the moment, the lug on the connecting body 21 is separated from the lug on the latch bolt stirring piece 22, the rotation of the connecting body 21 cannot influence the latch bolt stirring piece 22, but the latch bolt automatically extends and locks under the action of a spring of the latch bolt, and the reset of the latch bolt drives the latch bolt stirring piece 22 to reversely rotate for resetting; when the handle is lifted, the latch bolt has completed its reset, while the projection on the connecting body 21 remains separated from the projection on the latch bolt toggle 22, so that the latch bolt toggle 22 remains stationary at this time.

Different from the above arrangement, the tongue transmission member 23 and the connecting body 21 of the present embodiment adopt an intermittent bidirectional transmission matching manner. Specifically, the outer edge of the connecting body 21 is provided with two protrusions at intervals in the circumferential direction, a convex column is arranged on the tongue transmission piece 23, the convex column extends into the interval between the two protrusions, and the length of the interval is greater than the diameter of the convex column. Therefore, when the handle is pressed down, the connecting body 21 rotates, the two protrusions rotate, one of the two protrusions abuts against the extrusion convex column, the convex column is pressed to rotate synchronously, the connecting body 21 drives the square tongue transmission piece 23 to rotate together, the square tongue transmission piece 23 rotates to drive the square tongue to retract into the lock body, and unlocking is achieved; when the handle is released and the handle is restored to the unstressed initial position, the connecting body 21 rotates reversely, the convex column is separated from the protrusions, and the convex column and the two protrusions are not in extrusion fit, so that the connecting body 21 does not drive the dead bolt transmission piece 23 to rotate, the dead bolt is kept retracted into the lock body, and the lock body is kept unlocked; when the handle is lifted upwards, the connecting body 21 continues to rotate reversely, the convex column is in extrusion fit with the other convex column and synchronously rotates under the extrusion of the convex column, so that the connecting body 21 drives the dead bolt transmission piece 23 to rotate reversely together, and the dead bolt transmission piece 23 rotates to drive the dead bolt to lock the lock body, thereby realizing locking.

In the embodiment, the rear end of the square tongue is provided with the rod piece and the rotating wheel, the rotating wheel is matched with the rod piece, the rod piece is matched with the square tongue, part of the outer edge of the rotating wheel is provided with the meshing teeth, correspondingly, part of the outer edge of the square tongue transmission member 23 is also provided with the meshing teeth, the two parts of the meshing teeth are meshed with each other, so that when the square tongue transmission member 23 rotates, the rotating wheel is driven to rotate through the meshing relation, the rotating wheel drives the rod piece to move, and the rod piece drives the square tongue to move so as to realize shooting and retraction. Simultaneously this embodiment still is provided with the torsional spring in the lock body, the one end and the runner butt of torsional spring to for the runner provides the power that hinders the square tongue to beat the lock body, like this, when the release handle, the square tongue keeps the lock body of withdrawing under the effect of torsional spring, thereby avoids rocking the condition such as lead to the problem of unexpected beating, guarantees to keep the stability of unblock.

In this embodiment, the lock body further includes a detection assembly 90, and the detection assembly 90 is located on a movement path of at least one of the first connecting member 10, the second connecting member 20, the third connecting member 30 and the locking bolt 70, and is capable of detecting a state of at least one of the first connecting member 10, the second connecting member 20, the third connecting member 30 and the locking bolt 70. Correspondingly, the lock body further comprises an electric control board 100, the detection assembly 90 and the driving assembly 80 are electrically connected with the electric control board 100, and the electric control board 100 receives the state signal detected by the detection assembly 90 and controls the action of the driving assembly 80 according to the state signal. Through the state detection to parts such as clutch, cabinet door, on the one hand can judge the open and close door of cabinet door, unblock state, realize state feedback, on the other hand coordinates the linkage of each part, realizes automatic control, avoids not closing the door and the condition that spring bolt 70 beats out. Specifically, when the detecting assembly 90 detects that the door is closed, the electronic control board 100 controls the driving assembly 80 to operate, and the driving assembly 80 drives the clutch member 40 to switch to the first butt-joint position, at which time the inner and outer handles can be lifted to strike out the square tongue; when the electric control board 100 receives a door opening signal, the driving assembly 80 drives the clutch member 40 to switch to the second butt joint position, and at the moment, the outer handle can be pressed down to unlock; if the door opening signal is received but the user does not open the door, the locking is delayed, the clutch piece 40 is switched to the first butt-joint position again, and the outer handle cannot be pressed down to unlock the door.

Example two

The difference from the first embodiment is that the lock body of the present embodiment further includes a self-locking assembly 110.

As shown in fig. 8 to 10, in the present embodiment, the self-locking assembly 110 is used to control the dead bolt that performs the main locking function, so as to perform the double locking function, and further ensure the safety of the lock body. The self-locking assembly 110 can be electrically connected with the electric control board 100, and when special conditions are met, the dead bolt can be locked through the self-locking assembly 110, and even if the clutch is unlocked, the lock body cannot be unlocked. If the thief has a password error for multiple times, the self-locking component 110 locks the dead bolt; when a person is followed, the user can open the door by using a preset protection code, the door is quickly closed after the door is opened, the self-locking assembly 110 locks the square bolt, and the like. And after the safety is confirmed, the unlocking password is used, and the self-locking is released.

The self-locking assembly 110 of the embodiment comprises a self-locking bolt 111 and a self-locking driving assembly 112, wherein the self-locking bolt 111 is movably arranged and is provided with a stopping position extending into a movement path of the dead bolt and an avoiding position retreating from the movement path of the dead bolt, and when the self-locking bolt 111 is positioned at the stopping position, the self-locking bolt 111 blocks the movement path of the dead bolt retracting or extending, so that the control of the movement of the dead bolt in two directions is realized. Of course, the self-locking bolt 111 may control only the retraction movement of the bolt. When the self-locking driving assembly 112 extends into the locking groove, the self-locking bolt 111 is kept at a stopping position and cannot move due to stopping of the self-locking driving assembly 112, and the dead bolt cannot extrude the self-locking bolt 111 out of a moving path of the dead bolt, so that the dead bolt cannot retract or extend; when the self-locking driving assembly 112 exits the locking groove, the self-locking bolt 111 is unlocked from the stopping position, and the self-locking bolt 111 can move to the avoiding position under the extrusion of the dead bolt, so that the dead bolt is unlocked. The auto-lock assembly 110 further includes a spring, which abuts against the auto-lock latch 111 and provides an elastic force for the auto-lock latch 111 to move to the stopping position, so that the auto-lock latch 111 always tends to move to the stopping position, and automatically resets to the stopping position after the dead bolt is retracted or ejected.

The drive assembly 80 and auto-lock drive assembly 112 of this embodiment's structure is the same basically, it all includes the motor, connecting rod and spring, be provided with radial projection on the output shaft of motor, the projection stretches into in the clearance of spring, the spring is connected with the connecting rod, the one end of connecting rod with separation and reunion spare 40 drive be connected or with the locking groove cooperation of auto-lock spring bolt 111, when motor drive output shaft rotates, protruding extrusion spring, spring extrusion connecting rod, the connecting rod can axial motion, thereby drive separation and reunion spare 40 motion or stretch into and withdraw from the locking groove, realize the change of clutch or auto-lock subassembly 110 states. Of course, other configurations of drive assembly 80 and self-locking drive assembly 112 may be used as desired.

It should be noted that, a plurality in the above embodiments means at least two.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the problem that the dead bolt is easily mistakenly knocked out when the lock body in the prior art is not closed is solved;

2. the clutch forms a pressing and lifting double free mode, so that the situation that the lock tongue is knocked out when the door is not closed due to misoperation of personnel is avoided, and the use reliability and safety are ensured;

3. the clutch core can also realize the gear shifting of pressing and lifting, and has the function of emergency unlocking;

4. the electric control plate is matched with the detection assembly to detect the actions of the lock body and the cabinet door, coordinate the linkage of all parts, realize automatic control and avoid the situation that a lock tongue is opened without closing the door;

5. the self-locking assembly plays a role in double locking, and the safety of the lock body is further ensured.

It is to be understood that the above-described embodiments are only a few, and not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

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

Claims (11)

1. A clutch, comprising:

a first connecting member (10);

a second connecting member (20);

the first connecting piece (10), the second connecting piece (20) and the third connecting piece (30) are axially overlapped in sequence, the surfaces of the first connecting piece (10) and the third connecting piece (30) facing the second connecting piece (20) are respectively provided with a first bulge (11) and a second bulge (31), and the distances from the first bulge (11) to the clutch center to the second bulge (31) are different;

a clutch member (40), the clutch member (40) being radially movably disposed on the second connecting member (20), the clutch member (40) having a clutch projection (41), the first projection (11) and the second projection (31) being respectively located on both sides of the clutch projection (41), the clutch member (40) having a first butt position and a second butt position;

when the clutch piece (40) is located at the first butt joint position, the clutch bulge (41) is circumferentially aligned with the first bulge (11) and staggered with the second bulge (31), when the first connecting piece (10) or the third connecting piece (30) rotates towards a first direction, the first bulge (11) extrudes the clutch bulge (41), and the first connecting piece (10) or the third connecting piece (30) drives the second connecting piece (20) to rotate; when the first connecting piece (10) or the third connecting piece (30) rotates in a second direction opposite to the first direction, the clutch protrusion (41) is staggered with the second protrusion (31), and the first connecting piece (10) or the third connecting piece (30) does not drive the second connecting piece (20) to rotate;

when the clutch member (40) is in the second butt position, the clutch projection (41) is circumferentially aligned with the second projection (31) and is offset from the first projection (11), and when the first coupling member (10) or the third coupling member (30) is rotated in the first direction, the clutch projection (41) is offset from the first projection (11), and the first coupling member (10) or the third coupling member (30) does not rotate the second coupling member (20); when the first connecting piece (10) or the third connecting piece (30) rotates towards the second direction, the second protrusion (31) extrudes the clutch protrusion (41), and the first connecting piece (10) or the third connecting piece (30) drives the second connecting piece (20) to rotate.

2. The clutch according to claim 1, characterized in that the clutch further comprises a pin arranged between the second connecting member (20) and one of the first connecting member (10) and the third connecting member (30), wherein the pin drives the second connecting member (20) to rotate synchronously when the first connecting member (10) or the third connecting member (30) rotates in the second direction, and the pin drives the second connecting member (20) to rotate by pressing the clutch projection (41) when the third connecting member (30) or the first connecting member (10) rotates in the first direction.

3. Clutch according to claim 2, wherein the pin is movably arranged and can be switched between a position protruding into the first connection member (10) and a position protruding into the third connection member (30) to change the engagement of the second connection member (20) with both the first connection member (10) and the third connection member (30).

4. A clutch according to claim 3, characterized in that the side of one end of the clutch member (40) which protrudes into the second connecting member (20) extends in the axial direction of the clutch and forms the clutch projection (41), and the clutch member (40) has the clutch projection (41) on both sides which face the first connecting member (10) and the third connecting member (30), and the clutch projections (41) on both sides are respectively engaged with the first projection (11) and the second projection (31).

5. Clutch according to claim 1, characterized in that the clutch part (40) has an escape recess (42), and in that the first projection (11) or the second projection (31) is circumferentially aligned with the escape recess (42) when the first projection (11) or the second projection (31) is not circumferentially aligned with the clutch projection (41), and in that the first projection (11) or the second projection (31) moves in the escape recess (42) without rotating the second coupling part (20).

6. The clutch according to claim 1, further comprising a reset member (50), wherein the reset member (50) is connected to the second coupling member (20) and provides a reset force for the second coupling member (20) to rotate to an initial state.

7. The clutch according to claim 1, characterized in that the clutch further comprises a clutch core (60) engaged with the unlocking key, the clutch core (60) is rotatably disposed, the second connecting member (20) is sleeved outside the clutch core (60), the peripheral surface of the clutch core (60) is provided with a plurality of steps with different depths, and when the clutch core (60) rotates, the step surfaces of the steps press the clutch member (40) and the clutch member (40) is switched between the first butt-joint position and the second butt-joint position.

8. A lock body, comprising:

a latch tongue (70);

the clutch of any one of claims 1 to 7, wherein the clutch is in driving fit with the latch bolt (70), and the first connecting piece (10) and the third connecting piece (30) of the clutch are respectively connected with each handle and driven by the handles to rotate in a first direction or a second direction so as to drive the latch bolt (70) to unlock;

a drive assembly (80), the drive assembly (80) being in driving connection with the clutch member (40) of the clutch and being capable of driving the clutch member (40) between a first docking position and a second docking position.

9. A lock body according to claim 8, characterized in that it further comprises a detection assembly (90), said detection assembly (90) being located on the movement path of at least one of said first connector (10), said second connector (20), said third connector (30), said bolt (70) and being capable of detecting the state of at least one of said first connector (10), said second connector (20), said third connector (30), said bolt (70).

10. A lock body according to claim 9, characterized in that it further comprises an electronic control board (100), said detection assembly (90) and said driving assembly (80) being electrically connected to said electronic control board (100), said electronic control board (100) receiving a status signal detected by said detection assembly (90) and controlling the action of said driving assembly (80) according to said status signal.

11. A lock body according to claim 8, characterized in that the lock body further comprises a self-locking assembly (110), the self-locking assembly (110) comprising:

the self-locking bolt (111) is movably arranged and is provided with a stopping position extending into the movement path of the bolt (70) and an avoiding position retreating from the movement path of the bolt (70);

a self-locking driving assembly (112), at least a part of the self-locking driving assembly (112) can extend into or withdraw from the self-locking bolt (111) to lock the self-locking bolt (111) at the stop position or unlock the self-locking bolt from the stop position.

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