CN217001277U - Linkage assembly and lock body - Google Patents

Abstract

The utility model provides a linkage assembly and a lock body, wherein the linkage assembly is accommodated in a shell of the lock body and comprises a first linkage piece movably connected with a signal tongue assembly, a second linkage piece movably connected with a lock tongue assembly and limiting, and a third linkage piece connecting the first linkage piece and the second linkage piece, wherein the third linkage piece is provided with a limiting blocking wall, the first linkage piece and the third linkage piece are connected in a stacking mode and are abutted against the limiting blocking wall, and one end, far away from the limiting blocking wall, of the second linkage piece and one end, away from the limiting blocking wall, of the third linkage piece are sleeved and connected and are in limiting connection. According to the linkage assembly, the first linkage member, the second linkage member and the third linkage member are arranged, the first linkage member is movably connected with the signal tongue assembly, the third linkage member is provided with the limiting blocking wall, and the first linkage member and the third linkage member are connected in a stacking mode and are abutted against the limiting blocking wall, so that the problems that the connection structure of the lock tongue assembly and the signal tongue assembly is complex, the installation is inconvenient and the cost is high in the conventional linkage assembly structure are solved.

Description

Linkage assembly and lock body

Technical Field

The utility model relates to a linkage assembly and a lock body, and relates to the field of door lock equipment.

Background

Along with the continuous development of science and technology, the lock has also had very big development, and intelligence lock is in due transit, compares in traditional mechanical lock, and intelligence lock is more intelligent in user identification, security, managerial aspect, has security, convenience.

The linkage assembly is a common structure in the lockset and is used for linking a signal tongue assembly, a lock tongue assembly and the like in the lockset. The structure is comparatively complicated among the existing linkage subassembly, has set up multiple connection structure in order to realize the linkage between signal tongue subassembly and the spring bolt subassembly, and inconvenient installation just cost is higher in the production.

Accordingly, there is a need for a new linkage assembly and lock body to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel linkage assembly and a lock body, and solves the problems of complex structure, inconvenience in installation and high cost of the existing linkage assembly.

In order to achieve the above purpose, the present invention provides a linkage assembly, which is accommodated in a housing of a lock body and is used for linking a lock tongue assembly and a signal tongue assembly of the lock body, the linkage assembly includes a first linkage movably connected to the signal tongue assembly, a second linkage movably connected to the lock tongue assembly and limiting the lock tongue assembly, and a third linkage connecting the first linkage and the second linkage, the third linkage is provided with a limiting blocking wall, the first linkage is connected to the third linkage in a stacked manner and is abutted against the limiting blocking wall, and the second linkage and one end of the third linkage, which is far away from the limiting blocking wall, are sleeved and connected and are connected in a limiting manner.

As a further improvement of the utility model, the linkage assembly further comprises a connecting piece fixed in the shell, the first linkage piece and the third linkage piece are connected in a stacking manner through the connecting piece, the first linkage piece is connected with the connecting piece in a circumferential rotation manner, and the third linkage piece is connected with the connecting piece in a limiting manner.

As a further improvement of the present invention, the first linkage member includes a first end portion close to and movably connected to the signal tongue assembly and a second end portion away from the signal tongue assembly and abutted to the limit blocking wall, the first end portion is provided with an abutting portion protruding out of a surface of the first linkage member, the abutting portion is configured to abut to and be driven by the signal tongue assembly, and the first linkage member circumferentially rotates in a first direction with the connection member as a rotation axis.

As a further improvement of the present invention, the second linkage member includes a sliding limiting hole for accommodating the connecting member, and the third linkage member is connected to the housing in a sliding manner along the second direction and is limited by the connecting member.

As a further improvement of the present invention, the second linkage member includes a first portion and a second portion that are disposed at an interval, one end of the third linkage member that is away from the signal tongue assembly is clamped between the first portion and the second portion, the linkage assembly further includes a holding member, and the holding member sequentially penetrates through the first portion, the third linkage member, and the second portion, and is fixedly connected to the housing.

As a further improvement of the present invention, the second linkage member further includes a guide post penetrating through the first portion and the second portion and fixedly connected to the housing, and the second linkage member rotates circumferentially with the guide post as a rotation axis.

As a further improvement of the present invention, the second linkage member further includes an elastic resetting member for providing an elastic force for the second linkage member to abut against the latch bolt assembly, the elastic resetting member includes an installation portion and two elastic extension arms formed by extending obliquely outward from the installation portion, the installation portion is sleeved on the guide post, and the two elastic extension arms abut against the holding member and the fixing member disposed in the housing for limiting the second linkage member, respectively.

The utility model provides a lock body which comprises a shell, a lock tongue component and a signal tongue component, wherein the lock tongue component and the signal tongue component are at least partially accommodated in the shell, and the linkage component is adopted.

As a further improvement of the present invention, the lock body includes a transmission assembly and at least one driving assembly, and the driving assembly is movably connected to the linkage assembly through the transmission assembly to drive the latch bolt assembly to extend out of or retract into the housing.

As a further improvement of the present invention, the lock body further comprises a dead bolt assembly, and the dead bolt assembly is connected with the linkage assembly, connected with the transmission assembly, and connected with the driving assembly through the transmission assembly.

As a further improvement of the present invention, the lock body further comprises at least one touch switch, and the touch switch is in signal connection with the driving component to drive the dead bolt component to extend or retract into the shell.

As a further improvement of the present invention, the touch switch is disposed close to the signal tongue assembly, and includes a switch body and an elastic arm disposed at an angle to the switch body, when the signal tongue assembly is compressed into the housing, the signal tongue assembly abuts against the elastic arm to send a door-locking signal, and when the signal tongue assembly extends out of the housing, the signal tongue assembly is separated from the elastic arm to send an unlocking signal.

As a further improvement of the utility model, the transmission assembly comprises a first transmission assembly and a second transmission assembly which are in linkage connection, the first transmission assembly comprises a first poking tooth sheet and a poking piece which are coaxially arranged and synchronously rotate, the second transmission assembly comprises a second poking tooth sheet and a bottom poking sheet which are coaxially arranged, and the first poking tooth sheet and the second poking tooth sheet are in meshed connection.

As a further improvement of the utility model, the square tongue assembly comprises a square tongue, a pulling part fixedly connected with the square tongue, and a pushing part movably connected with the pulling part, wherein the pulling part is in limit connection with the toggling part and is driven by the toggling part to drive the square tongue to extend out of or retract into the shell, one end of the pushing part can be movably connected with the driving assembly, and the other end of the pushing part is movably connected with the bottom toggling piece.

As a further improvement of the utility model, the driving assembly is a lock cylinder assembly, the lock cylinder assembly comprises a lock cylinder and a lock cylinder shifting wheel which rotate synchronously, and the lock cylinder shifting wheel is movably connected with the shifting piece and movably abutted against one end of the pushing piece close to the lock cylinder shifting wheel; when the lock cylinder shifting wheel abuts against the shifting piece, the lock cylinder shifting wheel rotates along a third direction to drive the square bolt to retract into the shell; when the lock cylinder shifting wheel is abutted against one end, close to the lock cylinder shifting wheel, of the pushing piece and rotates in the third direction, the pushing piece moves in the fourth direction and drives the bottom shifting piece to rotate in the third direction, so that the second linkage piece moves in the direction opposite to the third direction, and the limit of the lock bolt assembly is relieved.

As a further improvement of the present invention, the driving assembly is a motor assembly, the motor assembly is engaged with the second transmission assembly, and the second transmission assembly is connected with the dead bolt assembly through the first transmission assembly to drive the dead bolt assembly to extend out of or retract into the housing.

As a further improvement of the present invention, the driving assembly is a motor assembly, the motor assembly is engaged with a gear shifting wheel of the second transmission assembly, the gear shifting wheel and the second shifting piece are coaxially arranged and synchronously rotate, the gear shifting wheel is in transmission connection with the bottom shifting piece and rotates in the same direction, the bottom shifting piece is movably connected with the second linkage member, and the limit of the lock tongue assembly is limited or released through the second linkage member.

The utility model has the beneficial effects that: according to the linkage assembly, the first linkage member, the second linkage member and the third linkage member are arranged, the first linkage member is movably connected with the signal tongue assembly, the third linkage member is provided with the limiting blocking wall, and the first linkage member and the third linkage member are connected in a stacking mode and are abutted against the limiting blocking wall, so that the problems that the connection structure of the lock tongue assembly and the signal tongue assembly is complex, the installation is inconvenient and the cost is high in the conventional linkage assembly structure are solved.

Drawings

Figure 1 is a perspective view of a lock body according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

FIG. 3 is a side view of the latch of FIG. 1 with the second housing removed.

Fig. 4 is a perspective view of the linkage assembly of fig. 2.

Fig. 5 is a perspective view of the first linkage of fig. 4.

Fig. 6 is a perspective view of the second linkage member of fig. 4.

Fig. 7 is a perspective view of the second linkage member of fig. 4 at another angle.

Fig. 8 is a perspective view of the third link of fig. 3.

Fig. 9 is a perspective view of the front peripheral wall in fig. 2.

FIG. 10 is a perspective view of the tongue assembly of FIG. 2.

Fig. 11 is a perspective view of the transmission assembly of fig. 2.

Fig. 12 is a perspective view of the plug assembly of fig. 2.

Fig. 13 is a perspective view of the touch switch of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 3, the present invention discloses a lock body 200, which includes a linkage assembly 100, a housing 20, a signal tongue assembly 30, a locking tongue assembly 40, a square tongue assembly 50, a transmission assembly 60, a driving assembly 70 and a touch switch 80. In the embodiment of the present application, the lock body 200 is an intelligent door lock, and is installed on a door.

Referring to fig. 4, the linkage assembly 100 includes a first linkage 1, a second linkage 2, a third linkage 3, a connecting member 4 and a holder 5. Linkage assembly 100 is used to link signal tongue assembly 30 and drive assembly 60 while limiting bolt assembly 40. The linkage assembly 100 is disposed within the housing 20.

Referring to fig. 5, the first link member 1 includes a first end portion 11 and a second end portion 12. The first link 1 is movably connected to the signal tongue assembly 30, and is used for linking the third link 3 and the signal tongue assembly 30. The first end portion 11 is adjacent to the signal tongue assembly 30 and is movably connected to the signal tongue assembly 30. The first end portion 11 includes an abutting portion 111, and the abutting portion 111 protrudes from a surface of the first link 1, and is cylindrical in the embodiment of the present application, configured to abut against the signal tongue assembly 30, and is driven by the signal tongue assembly 30. The second end 12 is distal from the signal tongue assembly 30 and abuts the limit stop wall 32. The first link 1 rotates circumferentially in a first direction about the connecting member 4 as a rotation axis.

In the process of changing the lock body 200 from the unlocking state to the door locking state, the second end portion 12 abuts against the limiting blocking wall 32 and is driven by the limiting blocking wall 32 to rotate circumferentially by taking the connecting piece 4 as a rotating shaft; in the process of changing the lock body 200 from the door locking state to the unlocking state, the signal tongue assembly 30 is changed from being completely retracted in the housing 20 to being partially exposed outside the housing 20, and the first end portion 11 of the first linkage member 1 is driven by the signal tongue assembly 30 to rotate circumferentially around the connecting member 4 as a rotating shaft. In the embodiment of the present application, during the process of the signal tongue assembly 30 being forced to retract into the housing 20, the first direction is counterclockwise with reference to the direction of the drawing in fig. 3, and when the signal tongue assembly 30 is at least partially exposed out of the housing 20, the first direction is clockwise with reference to the direction of the drawing in fig. 3.

Referring to fig. 6 and 7, the second linkage member 2 includes a first portion 21, a second portion 22, a guide post 23, an elastic restoring member 24 and a fixing member 25. The second linkage member 2 is rotatably connected with the third linkage member 3, movably connected with the transmission assembly 60, and used for linking the third linkage member 3 and the transmission assembly 60 and limiting the bolt assembly 40.

The first portion 21 and the second portion 22 are spaced apart from each other and are configured to clamp the third link 3, specifically, the first portion 21 and the second portion 22 are made of the same plate material, the second portion 22 is bent above the first portion 21 by bending and stamping, and the first portion 21 and the second portion 22 are spaced apart from each other, and the third link 3 is clamped between the first portion 21 and the second portion 22 by the retainer 5. Guide post 23 is a cylinder installed on housing 20, penetrates first portion 21 and second portion 22 and is fixedly connected with housing 20, and second linkage 2 uses guide post 23 as a rotation axis to rotate circumferentially, and plays a role in linking third linkage 3 and transmission assembly 60 and limiting lock tongue assembly 40. The elastic restoring member 24 includes a mounting portion 241 and two elastic extension arms 242 extending obliquely outward from the mounting portion 241. The mounting portion 241 is disposed on the guiding post 23, and the two elastic extension arms 242 are respectively abutted against the fixing member 5 and the fixing member 25 disposed in the housing 20 for limiting the second linkage member 2. The fixing member 25 is disposed in the housing 20 and has a cylindrical shape, and is used for limiting the second linkage member 2 to prevent over-rotation. In the process that the second linkage member 2 rotates around the guide post 23, the position between the mounting portion 241 sleeved on the guide post 23 and the two elastic extension arms 242 is changed, and the elastic extension arms 242 generate elastic force, which can facilitate the second linkage member 2 to restore its own state. Under the condition that the second linkage member 2 is not forced to the external acting force, the second linkage member 2 is abutted against the fixed member 25 under the action of the elastic reset member 24 and is limited by the fixed member 25.

Referring to fig. 8, the third link 3 includes a link body 31, a limit wall 32 and a sliding limit hole 33. The third linkage member 3 is rotatably connected to the first linkage member 1 and the second linkage member 2, and is used for linking the first linkage member 1 and the second linkage member 2. Under the linkage of the third link 3, the rotation directions of the first link 1 and the second link 2 are the same. The limit stop wall 32 is perpendicular to the linkage body 31. The first linkage member 1 is connected with the linkage body 31 in a stacked mode and is abutted against the limit stop wall 32, and the second linkage member 2 is connected with one end, far away from the limit stop wall 32, of the linkage body 31 in a sleeved mode and is in limit connection. The slide limiting hole 33 is used for fixing the third link 3, and the third link 3 is connected with the casing 20 in a sliding manner along the second direction and limited by the connecting piece 4. In the embodiment of the present application, there are two slide limiting holes 33, and the slide limiting holes 33 are waist holes. The third link 3 can slide in the slide restricting hole 33 in the longitudinal direction of the waist hole. The two sliding limiting holes 33 are arranged in a staggered manner, so that the sliding of the third linkage 3 is facilitated.

The connecting pieces 4 are fixed in the shell 20, the connecting pieces 4 are installed in the sliding limiting holes 33 and are arranged in one-to-one correspondence to the sliding limiting holes 33, and the third connecting pieces 3 are connected with the connecting pieces 4 in a sliding mode. In the embodiment of the present application, there are two sliding limiting holes 33, and there are two corresponding connecting members 4. One connecting piece 4 connects the first linkage piece 1 and the third linkage piece 3 in a stacked manner, the first linkage piece 1 is connected with the connecting piece 4 in a circumferential rotation manner, and the other connecting piece 4 fixes the third linkage piece 3 on the shell 20 in a sliding manner.

The retainer 5 is used to connect the second and third links 2, 3 together. In the embodiment of the present application, the retainer 5 is cylindrical, sequentially penetrates through the first portion 21, the third link 3 and the second portion 22, and is fixedly connected to the housing 20.

Referring to fig. 2 and 9, the housing 20 includes a first housing 201 and a second housing 202 disposed opposite to each other, and a front wall 203 connected to the first housing 201 and the second housing 202, the first housing 201, the second housing 202 and the front wall 203 enclose an accommodating space, and the signal tongue assembly 30, the locking tongue assembly 40 and the dead tongue assembly 50 are at least partially accommodated in the accommodating space of the housing 20 and slidably connected to the housing 20. The transmission assembly 60, the driving assembly 70 and the touch switch 80 are all accommodated in the accommodating space. Front perimeter wall 203 is also provided with signal tongue inlet and outlet 2031 for allowing signal tongue assembly 30 to enter and exit housing 20, tongue inlet and outlet 2032 for allowing tongue assembly 50 to enter and exit housing 20, and tongue inlet and outlet 2033 for allowing tongue assembly 40 to enter and exit housing 20.

The signal tongue assembly 30 is used to feedback the state of the lock body 200 in cooperation with the touch switch 80. Under the condition that the signal tongue assembly 30 is not subjected to external force, the signal tongue assembly 30 is partially exposed out of the shell 20, and under the action of external force, namely when the door is closed, because the door frame is not provided with a corresponding concave part of the signal tongue assembly 30, the signal tongue assembly 30 is completely contracted into the shell 20 under the force, in the process, the signal tongue assembly 30 contacts the touch switch 80 and sends a signal, the driving assembly 70 drives the lock body 200 according to the signal, and the square tongue assembly 50 is partially extended out of the shell 20, so that the locking of the lock body 200 is realized.

Latch bolt assembly 40 is movably connected to linkage assembly 100, and at least partially accommodated in housing 20 for locking the door, and latch bolt assembly 40 is partially exposed out of housing 20 due to its own elastic force without being subjected to external force. In an embodiment of the present application, locking bolt assembly 40 is a scissor bolt assembly. When linkage assembly 100 is not stressed, locking bolt assembly 40 abuts against linkage assembly 100, is limited by second linkage member 2, is exposed out of shell 20 all the time, and cannot be completely contracted into shell 20 even under instant stress; in the process of changing the lock body 200 from the door locking state to the unlocking state, the linkage assembly 100 moves, and at this time, the locking bolt assembly 40 is no longer limited by the second linkage member 2, can freely extend and retract, is partially exposed out of the housing 20 without being stressed, and retracts into the housing 20 under being stressed.

Referring to fig. 10, the latch assembly 50 includes a latch 501, a pulling member 502 and a pushing member 503, and the latch assembly 50 is used for locking a door when the latch assembly 50 is partially exposed from the housing 20. The tongue assembly 50 is connected to the transmission assembly 60 and to the drive assembly 70. The pulling member 502 is fixedly connected with the square tongue 501 and is in limit connection with the shifting member 6012 of the transmission assembly 60, and the pulling member 502 is driven by the shifting member 6012 to move so as to drive the square tongue 501 to partially expose out of the housing 20 or completely retract into the housing 20, thereby realizing the door locking function. The end of the pushing member 503 close to the signaling tongue assembly 30 can be movably connected with the plug assembly 701 of the driving assembly 70, and the end far from the signaling tongue assembly 30 is movably connected with the bottom pick 6022 of the transmission assembly 60. The lock core assembly 701 rotates to enable the pushing piece 503 movably connected with the lock core assembly to move, one end, far away from the signal tongue assembly 30, of the pushing piece 503 pushes the bottom shifting piece 6022 of the transmission assembly 60 at this time, and the bottom shifting piece 6022 is forced to rotate to push the second linkage piece 2 connected with the bottom shifting piece 6022 to rotate. The pusher 503 is used for linkage of the plug assembly 701 and the linkage assembly 100.

Referring to fig. 11, the transmission assembly 60 includes a first transmission assembly 601 and a second transmission assembly 602. The transmission assembly 60 is connected to the drive assembly 70 and the linkage assembly 100 for transmitting drive changes made by the drive assembly 70 to the linkage assembly 100. The first transmission assembly 601 includes a first shifting tooth piece 6011 and a shifting member 6012, wherein the first shifting tooth piece 6011 and the shifting member 6012 are coaxially disposed and rotate synchronously. The second drive assembly 602 includes a second gear piece 6021 and a bottom gear piece 6022, with the second gear piece 6021 and the bottom gear piece 6022 being coaxially disposed. The first shifting tooth piece 6011 and the second shifting tooth piece 6021 are located at the same height and are in meshed connection. The first shifting tooth piece 6011 and the second shifting tooth piece 6021 rotate in opposite directions.

Drive assembly 70 is used to drive lock body 200 to change the state of one or more of deadbolt assembly 40, and deadbolt assembly 50. In the embodiment of the present application, the driving assembly 70 includes a lock core assembly 701 and a motor assembly 702, and in other embodiments of the present application, the driving assembly 70 may further include a handle assembly, a fingerprint identification assembly, a face identification assembly, and the like, as long as the driving function can be performed, which is not limited thereto.

Referring to fig. 12, the plug assembly 701 includes a plug 7011 and a plug thumbwheel 7012. The lock cylinder 7011 and the lock cylinder dial wheel 7012 rotate synchronously, the lock cylinder dial wheel 7012 is movably connected with the dial piece 6012 and movably abutted against one end of the pushing piece 503 close to the lock cylinder dial wheel 7012; when the lock cylinder shifting wheel 7012 abuts against the shifting piece 6012, the shifting piece 6012 rotates in the third direction to drive the square tongue 501 to retract into the housing 20; when the lock cylinder dial wheel 7012 abuts against one end of the pushing member 503 close to the lock cylinder dial wheel 7012, the pushing member 503 moves along the fourth direction and drives the bottom dial plate 6022 to rotate along the direction opposite to the third direction, so that the second linkage member 2 moves along the direction opposite to the fourth direction, and the limit of the lock tongue assembly 40 is released.

The motor assembly 702 is in meshing engagement with the bottom driver plate 6022 of the second drive assembly 602, and the motor assembly 702 is also used to drive the lock body 200. Specifically, the motor assembly 702 rotates to drive the bottom shifting block 6022 to rotate, the bottom shifting block 6022 and the second shifting tooth block 6021 are coaxially arranged, and the second shifting tooth block 6021 is in transmission connection with the bottom shifting block 6022 and rotates in the same direction. Bottom shifting plate 6022 is movably connected with second linkage member 2 and limits or releases limiting bolt assembly 40 through second linkage member 2.

Referring to fig. 13, the touch switch 80 includes a switch body 801, an elastic arm 802, and a second fixing member 803. The lock body 200 includes at least one touch switch 80, and the touch switch 80 is in signal communication with the driving assembly 70 to drive the deadbolt assembly 50 out of or into the housing 20. The switch body 801 of the touch switch 80 is disposed in the first casing 201 of the casing 20 through the second fixing member 803, and the elastic arm 802 is disposed at an angle to the switch body 801. In the embodiment of the present application, two touch switches 80 are provided in total. A touch switch 80 is disposed near the signal tongue assembly 30, when the signal tongue assembly 30 is compressed into the housing 20 by a force, the signal tongue assembly 30 abuts against the elastic arm 802 of the touch switch 80, so that the touch switch 80 sends out a signal, the signal can be determined by the signal that the signal tongue assembly 30 is completely retracted into the housing 20, and the driving assembly 70 drives the square tongue assembly 50 to partially expose out of the housing 20, thereby realizing door locking. When signal tongue assembly 30 transitions from fully retracted within housing 20 to extended out of housing 20, signal tongue assembly 30 disengages from resilient arm 802, and touch switch 80 signals, and drive assembly 70 drives tongue assembly 50 to retract into housing 20, thereby unlocking the lock. Another touch switch 80 is disposed near bolt assembly 40, and when bolt assembly 40 is completely retracted into housing 20 from partially exposed out of housing 20, bolt assembly 40 abuts against elastic arm 802 of touch switch 80, so that touch switch 80 sends out a signal, which can determine that bolt assembly 40 is no longer limited by linkage assembly 100, that is, signal bolt assembly 30 is partially exposed out of housing 20, and lock body 200 is in an unlocked state. The tongue assembly 50 is fully retracted within the housing 20.

The lock body 200 of the present application has two states, an unlocked state and a locked state. Specifically, lock body 200 is installed on a door, when the door is opened, signal tongue assembly 30 and locking tongue assembly 40 are partially exposed out of housing 20, and dead bolt assembly 50 is completely retracted in housing 20, at this time, signal tongue assembly 30 is directly forced to move by pressing it into housing 20, locking tongue assembly 40 and dead bolt assembly 50 cannot move by applying force, and lock body 200 is in an unlocked state. When the user closes the door, because the door frame is not provided with the recess corresponding to the signal tongue assembly 30, the signal tongue assembly 30 is completely retracted into the housing 20 by the force of the door frame, and at this time, the locking tongue assembly 40 and the square tongue assembly 50 are partially exposed out of the housing 20 and directly apply force to the locking tongue assembly and cannot be pressed and moved in the housing 20, so that the lock body 200 is in a door locking state. Two ways from a door locking state to an unlocking state, namely door opening, are available, one way is that a user adopts a key to complete the operation through the lock cylinder component 701; the other is user-inoperable, which is accomplished autonomously by the electromechanical component 702. The door closing mode from the door locking state to the unlocking state is automatically completed through the motor assembly 702

During the transition from the door-locked state to the door-unlocked state by plug assembly 701, signal tongue assembly 30 is fully retracted into housing 20 in the door-locked state, and bolt assembly 40 and deadbolt assembly 50 are partially exposed out of housing 20. At this time, the user inserts the key into the lock cylinder 7011 to rotate, the lock cylinder 7011 rotates in the third direction, i.e., clockwise with reference to the direction of the drawing in fig. 3, the lock cylinder dial 7012 rotates in the same direction as the lock cylinder 7011, the lock cylinder dial 7012 is movably connected to the toggle member 6012, and the toggle member 6012 is driven to rotate in the direction opposite to the third direction, i.e., counterclockwise. The rotating shifting member 6012 drives the pulling member 502 to move, and pulls the tongue 501 partially exposed out of the housing 20, so that the tongue assembly 50 is completely retracted into the housing 20. The pushing member 503 is moved from a position originally far away from the lock cylinder thumb wheel 7012 to a position close to the lock cylinder thumb wheel 7012, and one end of the pushing member 503 close to the lock cylinder thumb wheel 7012 can be movably abutted against the lock cylinder thumb wheel 7012 at this time. Then, the key continues to rotate the plug assembly 701 in the third direction, the plug thumb wheel 7012 drives the pushing member 503 to move in the fourth direction, i.e., from bottom to top with reference to the direction of the drawing in fig. 3, and one end of the pushing member 503, which is far away from the plug thumb wheel 7012, abuts against the bottom thumb piece 6022 during movement, so as to drive the bottom thumb piece 6022 to rotate in the third direction, i.e., clockwise with reference to the direction of the drawing in fig. 3. The bottom shifting plate 6022 is movably connected to the second linkage member 2 to drive the second linkage member 2 to rotate in a direction opposite to the third direction, i.e., counterclockwise. Second linkage member 2 is far away from bolt assembly 40 after rotating, can not contradict bolt assembly 40 and spacing. In the process of opening the door from the door locking state to the door unlocking state, due to the fact that the door can be pulled open, the lock bolt assembly 40 can be stressed to contract into the shell 20 and cannot block the door opening process, and after the door opening process is completed, due to the effect of self elasticity, the lock bolt assembly 40 can pop out again and is partially exposed out of the shell 20. The second linkage member 2 rotating in the opposite direction to the third direction simultaneously drives the linked third linkage member 3 to slide in the second direction, i.e. from top to bottom with reference to the direction of the drawing in fig. 3, the third linkage member 3 sliding in the second direction drives the second end 12 of the first linkage member 1 through the limiting stop wall 32, so that the first linkage member 1 rotates in the first direction, i.e. counterclockwise with reference to the direction of the drawing in fig. 3, at this time, the rotating first end 11 abuts against the signal tongue assembly 30 and limits the signal tongue assembly 30, and when the lock body 200 is separated from the door frame and the change from the door locking state to the unlocking state is completed, the signal tongue assembly 30 is limited by the first linkage member 1, and cannot be changed from a state of being completely contracted in the housing 20 to a state of being partially exposed outside the housing 20 by its own elastic force. The above is a complete process from the locked state to the unlocked state by the plug assembly 701.

During the process of changing from the door-locking state to the door-unlocking state by the motor assembly 702, the signal tongue assembly 30 is completely retracted into the housing 20 in the door-locking state, and the locking tongue assembly 40 and the square tongue assembly 50 are partially exposed out of the housing 20. At this time, the motor assembly 702 drives the engaged second transmission assembly 602 to rotate, the second transmission assembly 602 is engaged with the first transmission assembly 601, and drives the toggle member 6012 of the first transmission assembly 601 to rotate in a direction opposite to the third direction, that is, to rotate counterclockwise with reference to the direction of the drawing in fig. 3, the toggle member 6012 drives the pull member 502 to move, and pulls the tongue 501 partially exposed out of the housing 20, so that the tongue assembly 50 is completely retracted into the housing 20. At the same time, the bottom dial 6022 in the second transmission assembly 602 drives the second linkage member 2 to rotate in a direction opposite to the third direction, i.e., in a counterclockwise direction with respect to the direction of the drawing in fig. 3. The second linkage member 2 rotating in the opposite direction to the third direction simultaneously drives the linked third linkage member 3 to slide in the second direction, i.e. from top to bottom with reference to the direction of the drawing in fig. 3, the third linkage member 3 sliding in the second direction drives the second end 12 of the first linkage member 1 through the limiting stop wall 32, so that the first linkage member 1 rotates in the first direction, i.e. counterclockwise with reference to the direction of the drawing in fig. 3, at this time, the rotating first end 11 abuts against the signal tongue assembly 30 and limits the signal tongue assembly 30, and when the lock body 200 is separated from the door frame and the change from the door locking state to the unlocking state is completed, the signal tongue assembly 30 is limited by the first linkage member 1, and cannot be changed from a state of being completely contracted in the housing 20 to a state of being partially exposed outside the housing 20 by its own elastic force.

After the process of changing from the door-locking state to the unlocking state is completed, the plug assembly 701 or the motor assembly 702 does not drive the second linkage member 2 to rotate any more, at this time, under the action of the elastic force of the signal tongue assembly 30 and the elastic force of the elastic resetting member 24 of the second linkage member 2, the first linkage member 1 and the second linkage member 2 rotate clockwise with respect to the third direction, that is, with the direction of the drawing in fig. 3 as the reference, until the second linkage member 2 is stopped when being limited and abutted by the fixing member 25, at this time, the second linkage member 2 limits the lock tongue assembly 40 partially exposed out of the housing 20, the first linkage member 1 does not limit the signal tongue assembly 30 any more, and the signal tongue assembly 30 partially exposes out of the housing 20 under the action of its own elastic force.

During the transition from the unlocked state to the door-locked state by motor assembly 702, signal tongue assembly 30 and locking tongue assembly 40 are partially exposed from housing 20 in the unlocked state, and deadbolt assembly 50 is fully retracted within housing 20. When the door is closed into the door frame, the door frame is provided with the concave part corresponding to the bolt assembly 40, the bolt assembly 40 freely stretches and retracts to enter the corresponding concave part in the door frame, and the part of the bolt assembly 40 still remains exposed out of the shell 20, but the concave part corresponding to the signal bolt assembly 30 is not arranged in the door frame, so that the signal bolt assembly 30 always receives the force of the door frame and is completely retracted into the shell 20, and the signal bolt assembly 30 contacts the touch switch 80 in the retracting process to send a signal. After receiving the signal that the signal tongue assembly 30 is completely retracted into the housing 20, the motor assembly 702 rotates to drive the bottom dial plate 6022 rotationally connected to the motor assembly 702, the bottom dial plate 6022 rotates in a third direction, at this time, the third direction is a counterclockwise direction with reference to the direction of the drawing in fig. 3, the bottom dial plate 6022 drives the second dial plate 6021 coaxially and simultaneously rotating, and the second dial plate 6021 drives the first dial plate 6011 engaged with the second dial plate 6011 to rotate in a direction opposite to the third direction, that is, in this time, in a clockwise direction with reference to the direction of the drawing in fig. 3. The shifting member 6012 and the first shifting tooth piece 6011 rotate coaxially and in the same direction to drive the pulling member 502 to move, and at this time, the square tongue assembly 50 is partially exposed out of the housing 20 from being completely retracted into the housing 20. Meanwhile, the bottom shifting piece 6022 which rotates anticlockwise cannot be connected with the second linkage part 2, and the second linkage part 2 is not driven by the bottom shifting piece 6022. The above is a complete process from the unlocked state to the locked state by the motor assembly 702.

In summary, the linkage assembly 100 of the present invention includes the first linkage member 1, the second linkage member 2, and the third linkage member 3, the first linkage member 1 is movably connected to the signal tongue assembly 30, the third linkage member 3 is provided with the limit stop wall 32, and the first linkage member 1 and the third linkage member 3 are connected in a stacked manner and abut against the limit stop wall 32, so as to solve the problems of the prior linkage assembly structure that the connection structure of the signal tongue assembly and the signal tongue assembly is complex, the installation is not easy, and the cost is high.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims (17)

1. A linkage assembly, characterized by: the linkage assembly is accommodated in a shell of the lock body and is used for linkage connection of a spring bolt assembly and a signal tongue assembly of the lock body, the linkage assembly comprises a first linkage piece movably connected with the signal tongue assembly, a second linkage piece movably connected with the spring bolt assembly and limited by the spring bolt assembly, and a third linkage piece connected with the first linkage piece and the second linkage piece, a limiting blocking wall is arranged on the third linkage piece, the first linkage piece is connected with the third linkage piece in a stacking mode and abutted against the limiting blocking wall, and the second linkage piece is connected with a sleeve of the third linkage piece far away from the limiting blocking wall in a limiting mode.

2. A linkage assembly according to claim 1, wherein: the linkage assembly further comprises a connecting piece fixed in the shell, the first linkage piece and the third linkage piece are connected in a stacking mode through the connecting piece, the first linkage piece is connected with the connecting piece in a circumferential rotating mode, and the third linkage piece is connected with the connecting piece in a limiting mode.

3. The linkage assembly according to claim 2, wherein: the first linkage piece comprises a first end portion and a second end portion, the first end portion is close to the signal tongue assembly and movably connected with the signal tongue assembly, the second end portion is far away from the signal tongue assembly and abutted to the limiting blocking wall, an abutting portion protruding out of the surface of the first linkage piece is arranged at the first end portion, the abutting portion is configured to be abutted to the signal tongue assembly and driven by the signal tongue assembly, and the first linkage piece circumferentially rotates along a first direction by taking the connecting piece as a rotating shaft.

4. The linkage assembly according to claim 2, wherein: the third link comprises a sliding limiting hole for accommodating the connecting piece, and the third link is connected with the shell in a sliding mode along the second direction and limited by the connecting piece.

5. The linkage assembly according to claim 1, wherein: the second linkage piece comprises a first part and a second part which are arranged at intervals, one end, far away from the signal tongue assembly, of the third linkage piece is clamped between the first part and the second part, the linkage assembly further comprises a fixing piece, and the fixing piece penetrates through the first part, the third linkage piece and the second part in sequence and is fixedly connected with the shell.

6. A linkage assembly according to claim 5, wherein: the second linkage piece also comprises a guide post which penetrates through the first part and the second part and is fixedly connected with the shell, and the guide post is used as a rotating shaft to rotate in the circumferential direction.

7. A linkage assembly according to claim 6, wherein: the second linkage still includes does the second linkage butt the spring bolt subassembly provides the elasticity piece that resets of elasticity, elasticity piece that resets includes the installation department and certainly the installation department leans out two elasticity extension arms that extend the formation, the installation department cover is established on the guide post, two elasticity extension arm respectively with fixing piece and setting are in be used for spacingly in the casing the mounting butt of second linkage.

8. A lock body is characterized in that: comprising a housing, a deadbolt assembly and a signal tongue assembly housed at least partially within the housing, and a linkage assembly according to any one of claims 1-7.

9. The lock body of claim 8, wherein: the lock body comprises a transmission assembly and at least one driving assembly, and the driving assembly is movably connected with the linkage assembly through the transmission assembly so as to drive the bolt assembly to extend out of or retract into the shell.

10. The lock body of claim 9, wherein: the lock body further comprises a square tongue assembly, the square tongue assembly is connected with the linkage assembly, connected with the transmission assembly and connected with the driving assembly through the transmission assembly.

11. The lock body of claim 10, wherein: the lock body further comprises at least one touch switch, and the touch switch is in signal connection with the driving assembly to drive the dead bolt assembly to extend out of or retract into the shell.

12. The lock body of claim 11, wherein: the touch switch is close to the signal tongue assembly and comprises a switch body and an elastic arm arranged at an included angle with the switch body, when the signal tongue assembly is compressed into the shell, the signal tongue assembly is abutted to the elastic arm to send a door locking signal, and when the signal tongue assembly extends out of the shell, the signal tongue assembly is separated from the elastic arm to send an unlocking signal.

13. The lock body of claim 10, wherein: the transmission assembly comprises a first transmission assembly and a second transmission assembly which are connected in a linkage mode, the first transmission assembly comprises a first tooth shifting piece and a shifting piece which are coaxially arranged and synchronously rotate, the second transmission assembly comprises a second tooth shifting piece and a bottom shifting piece which are coaxially arranged, and the first tooth shifting piece is meshed with the second tooth shifting piece.

14. The lock body of claim 13, wherein: the square tongue assembly comprises a square tongue, a pulling piece fixedly connected with the square tongue and a pushing piece movably connected with the pulling piece, the pulling piece is connected with the stirring piece in a limiting mode and driven by the stirring piece to drive the square tongue to extend out of or retract into the shell, one end of the pushing piece can be movably connected with the driving assembly, and the other end of the pushing piece is movably connected with the bottom stirring piece.

15. The lock body of claim 14, wherein: the driving assembly is a lock cylinder assembly, the lock cylinder assembly comprises a lock cylinder and a lock cylinder shifting wheel which rotate synchronously, and the lock cylinder shifting wheel is movably connected with the shifting piece and movably abutted against one end, close to the lock cylinder shifting wheel, of the pushing piece; when the lock cylinder shifting wheel abuts against the shifting piece, the lock cylinder shifting wheel rotates along a third direction to drive the square bolt to retract into the shell; when the lock cylinder shifting wheel is abutted against one end, close to the lock cylinder shifting wheel, of the pushing piece and rotates in the third direction, the pushing piece moves in the fourth direction and drives the bottom shifting piece to rotate in the third direction, so that the second linkage piece moves in the direction opposite to the third direction, and the limit on the lock tongue assembly is relieved.

16. The lock body of claim 14, wherein: the driving assembly is a motor assembly, the motor assembly is meshed with the second transmission assembly, and the second transmission assembly is connected with the square tongue assembly through the first transmission assembly so as to drive the square tongue assembly to extend out of or retract into the shell.

17. The lock body of claim 14, wherein: the driving assembly is a motor assembly, the motor assembly is meshed with a gear shifting wheel of the second transmission assembly, the gear shifting wheel and the second shifting piece are coaxially arranged and synchronously rotate, the gear shifting wheel is in transmission connection with the bottom shifting piece and rotates in the same direction, the bottom shifting piece is movably connected with the second linkage piece, and the limit of the spring bolt assembly is limited or relieved through the second linkage piece.

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