CN112523607B - Door lock and linkage type unlocking mechanism thereof - Google Patents
Door lock and linkage type unlocking mechanism thereof Download PDFInfo
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- CN112523607B CN112523607B CN201910889225.XA CN201910889225A CN112523607B CN 112523607 B CN112523607 B CN 112523607B CN 201910889225 A CN201910889225 A CN 201910889225A CN 112523607 B CN112523607 B CN 112523607B
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- linkage
- transmission
- groove
- unlocking
- back locking
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- 230000007246 mechanism Effects 0.000 title claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 117
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 16
- 230000013011 mating Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000006978 adaptation Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
- E05B1/003—Handles pivoted about an axis perpendicular to the wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/0013—Followers; Bearings therefor
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/146—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other locks with two or more bolts, each bolt itself being a tumbler
Abstract
The invention discloses a door lock and a linkage unlocking mechanism thereof, wherein the linkage unlocking mechanism is used for unlocking linkage of a door lock bolt and a counter lock mechanism, a gear transmission column and the bolt are coaxially and rotatably arranged, a linkage piece can linearly displace relative to a door lock middle frame, the linkage piece is provided with a rack which is meshed with a gear of the gear transmission column and is matched with the gear, and a transmission contact surface and a first groove which is matched with a handle pulling block are arranged on the linkage piece; and is configured to: when the back locking knob block rotates to a back locking working position along a first direction, the back locking working surface is matched with the elastic piece, and the transmission column is propped against the transmission contact surface; the handle pulling block can drive the linkage piece to displace through the first groove, and the transmission column propped against the transmission contact surface can drive the anti-lock knob block to rotate along the second direction until the unlocking working surface is matched with the elastic piece. By applying the scheme, the method has good safety and adaptation stability on the basis of effectively improving user experience.
Description
Technical Field
The invention relates to the technical field of door lock safety control, in particular to a door lock and a linkage type unlocking mechanism thereof.
Background
With the continuous development of social economy, the safety of work and home environment is also becoming more and more concerned, and people put higher demands on the safety management of door locks. As is well known, a door lock mostly has a back locking function, for example, a push-pull door lock realizes the back locking function by using a back locking mechanism such as a back locking knob, a back locking button, etc., so as to shield an unlocking function outside the door or lock the unlocking structure, so that a stranger can not unlock the door lock from outside the door, and the protection and guarantee functions are played.
In the prior art, the back locking structure of the push-pull lock is generally separated from the push-pull unlocking structure, and when in actual operation, a person in the door needs to release the back locking first to further open the push-pull lock, and the structure is complex and the operation is troublesome.
In view of this, what is needed is to optimally design the structure of the existing door lock, and on the basis of simplifying the structure, the operability of unlocking and unlocking the door lock can be effectively improved, so that the user experience is effectively improved.
Disclosure of Invention
In order to solve the technical problems, the invention provides a door lock with an optimized structure and a linkage unlocking mechanism thereof, so as to comprehensively improve user experience.
The invention provides a linkage unlocking mechanism which is used for unlocking linkage between a door lock bolt and a counter-locking mechanism, wherein the counter-locking mechanism comprises a counter-locking knob block, and the counter-locking knob block comprises a gear transmission column, a linkage piece and an elastic piece arranged on a door lock middle frame: the gear transmission column and the lock tongue are coaxially and rotatably arranged; the linkage piece can linearly displace relative to the door lock middle frame and is provided with a rack which is meshed with a gear of the gear transmission column and is matched with the gear, and the linkage piece is provided with a transmission contact surface and a first groove which is matched with the handle pulling block; the outer circumferential surface of the back locking knob block is matched with the elastic piece, a back locking working surface, a transition surface and an unlocking working surface are sequentially arranged along the circumferential direction, and the back locking knob block is pressed against the elastic piece through the transition surface to be deformed and switched between an unlocking state and a back locking state; the back lock knob block is provided with a transmission column matched with the transmission contact surface and is configured to: when the back locking knob block rotates to a back locking working position along a first direction, the back locking working surface is matched with the elastic piece in a fitting way, and the transmission column is abutted against the transmission contact surface; the handle pulling block can drive the linkage piece to displace through the first groove, and the transmission column which is propped against the transmission contact surface can drive the anti-lock knob block to rotate along the second direction until the unlocking working surface is matched with the elastic piece; one of the first direction and the second direction is a clockwise direction, and the other is a counterclockwise direction.
Preferably, the elastic piece is a spring piece connected with the middle frame, the counter locking working surface and the unlocking working surface which are matched with the spring piece are both planes, and the transition surface is an arc transition surface.
Preferably, the two ends of the spring piece are bent at right angles.
Preferably, the linkage piece comprises a rack transmission plate and a linkage plate which are fixedly connected; the rack transmission plate is provided with the racks and the first groove; the linkage plate is provided with a second groove, the transmission contact surface is formed on the groove wall of the second groove perpendicular to the linear displacement direction, and the second groove is provided with a space which is suitable for the rotation amplitude of the transmission column.
Preferably, the rack gear plate has a third groove, and the rack is formed at a sidewall of the third groove.
Preferably, the meshing teeth on the gear transmission column are arranged in a sector shape; the side walls of the two sides of the third groove are respectively and oppositely provided with the racks, and gears on the gear transmission column can be meshed with the first racks or the second racks.
Preferably, the anti-lock knob block is symmetrically provided with two transmission columns, and the geometric center connecting line of the two transmission columns is parallel to the unlocking working surface; correspondingly, the second groove of the linkage plate is provided with two transmission contact surfaces, and the first transmission column and the first transmission contact surface, and the second transmission column and the second transmission contact surface are respectively positioned on the same side; the first transmission contact surface and the second transmission contact surface are respectively positioned at two sides of the rotation center of the back lock knob block along the direct displacement direction; and is configured to: the first transmission column, the first transmission contact surface and the first rack are a working group, and the second transmission column, the second transmission contact surface and the second rack are a working group.
Preferably, a direct displacement matching pair is arranged between the linkage plate and the middle frame.
Preferably, the size of the first groove is larger than the size of the handle pulling block along the linear displacement direction of the linkage piece.
The invention also provides a door lock, which comprises a middle frame, and a handle and an anti-lock knob which are positioned at one side of the middle frame; the device also comprises a linkage unlocking mechanism as described above.
Aiming at the door lock with the back locking function, the invention creatively provides a linkage unlocking mechanism so as to realize the unlocking linkage of the door lock bolt and the back locking mechanism. Specifically, the outer peripheral surface of the back locking knob block is matched with the elastic piece, a back locking working surface, a transition surface and an unlocking working surface are sequentially arranged along the circumferential direction, and the linkage relation between the back locking knob block and the lock tongue of the door lock is realized by utilizing a transmission column and a linkage piece which are arranged on the back locking knob block. When the door is in back locking operation, the back locking knob block rotates until the back locking working surface of the back locking knob block is matched with the elastic piece, and meanwhile, the transmission column on the back locking knob block is propped against the transmission contact surface on the linkage piece; namely, in the back locking working state, a preliminary adapting relation of unlocking linkage is constructed through the transmission column and the transmission contact surface. When the handle is operated in the door to unlock, the handle pulling block can drive the handle pulling block to linearly displace through the first groove on the linkage piece, and in the displacement process, the transmission contact surface on the linkage piece pushes the transmission column and drives the reverse locking knob block to reversely rotate until the unlocking working surface and the elastic piece are properly matched, so that reliable unlocking is realized. Compared with the prior art, the invention has the following beneficial technical effects:
first, the rack and the gear drive post meshing transmission that set up on the linkage of this scheme are through it, at the in-process that the operating handle was unblocked, drive the spring bolt and unblanked through the gear drive post that sets up with the coaxial rotation of spring bolt, from this, can realize opening anti-locking mechanism and main lock tongue in step when the door handle, utilize the cooperation transmission between linkage board and the anti-locking knob piece to realize releasing anti-locking mechanism's setting when the push-and-pull door handle opens main lock tongue, simplified the operation of indoor personnel's unblanking, have simple structure and the higher characteristics of reliability. The scheme can be directly applied to the existing electronic door lock body, and has higher practical application value; particularly, the door can be unlocked through the handle of the sliding door in the back locking state, particularly, escape can be realized rapidly under critical conditions, and the door has an obvious emergency guarantee function.
In the second preferred scheme of the invention, the elastic piece adopts a spring piece connected with the middle frame, the locking working surface and the unlocking working surface of the locking knob block are planes matched with the spring piece, and in the actual working process, when the locking and unlocking operations are carried out, the arc transition surface acts on the middle section of the spring piece, so that the acting force of the rotating reset of the locking knob block is provided by pressing the deformation energy stored after the deformation of the spring piece. The arrangement is that the plane matching pair is adopted for determining and enabling the back locking knob block to be kept in a back locking working position or an unlocking working position, so that the device has good safety and adaptation stability; in addition, the processing assembly manufacturability of the design is good.
Thirdly, in another preferred scheme of the invention, the linkage piece adopts a split type design, and is formed by fixedly connecting a rack transmission plate and a linkage plate; wherein, the structure with handle pull out piece and gear drive post adaptation is located rack drive board, and the structure with the drive post adaptation of lock knob piece is located the linkage board. On the basis of meeting unlocking linkage function, split type design can make full use of the assembly space of lock center, and split type design can effectively reduce part processing manufacturing cost simultaneously.
Fourth, in a further preferred embodiment of the present invention, the driving structure is designed as two working groups, the driving post, the driving contact surface and the rack are designed as two, the first driving post, the first driving contact surface and the first rack are designed as one working group, and the second driving post, the second driving contact surface and the second rack are designed as one working group. The arrangement can be selected according to the lock body structures in different door opening directions, and the adaptability of the linkage unlocking structure is improved.
Drawings
FIG. 1 is an exploded view of an assembly of a door lock according to an embodiment;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is an exploded view of the assembly of the anti-lock knob block, the elastic member and the linkage member according to the embodiment;
FIG. 4 is a schematic diagram showing the cooperation between the locking knob block and the elastic member in the locking state;
FIG. 5 is a schematic diagram showing the mating relationship between the lock knob block and the elastic member in the unlock operation state;
FIG. 6 is a schematic view of the linkage unlocking mechanism in an unlocked state with the main latch open;
FIG. 7 is a schematic view of a linkage unlocking mechanism in a locked state;
fig. 8 is a schematic view of the linkage unlocking mechanism in an unlocked state.
In the figure:
the middle frame 1, the channel 11, the limit guide post 12, the handle 2, the handle pulling block 21, the back lock knob 3, the back lock knob block 4, the first transmission post 411, the second transmission post 412, the back lock working surface 42, the transition surface 43, the unlocking working surface 44, the elastic piece 5, the linkage piece 6, the rack transmission plate 61, the third groove 611, the first rack 6111, the second rack 6112, the first groove 612, the linkage plate 62, the second groove 621, the first transmission contact surface 6211, the second transmission contact surface 6212, the gear transmission post 7, the gear 71, the square pin hole 72 and the positioning point 73.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Without losing generality, the technical scheme of the linkage unlocking mechanism is described in detail by the sliding door lock shown in fig. 1, and after the assembly is completed, the handle 2 and the counter lock knob 3 on one side of the middle frame 1 are positioned on the inner side of the door, so that a user can perform corresponding operation in the door. It should be understood that the main tongue extending functional structure of the sliding door lock does not constitute a substantial limitation on the linkage structure mechanism claimed in the present application.
Referring to fig. 1 and 2, fig. 1 is an exploded view illustrating an assembly of the door lock according to the present embodiment; fig. 2 is a side view of fig. 1. The counter lock mechanism of the door lock is shown in the figure to apply a rotational force to the counter lock knob block 4 through the counter lock knob 3 so that the counter lock knob block 4 rotates to the counter lock operation state.
In this scheme, the linkage release mechanism is used for the unblock linkage of lock spring bolt (not shown in the figure) and locking mechanism, specifically includes locking knob piece 4, elastic component 5, linkage piece 6 and with the coaxial gear drive post 7 that rotates the setting of spring bolt in this linkage relation.
Wherein, a gear 71 meshed with the rack is arranged on the gear transmission column 7; here, the gear post 7 is connected to a square drive pin (not shown in the drawing) via a square pin hole 72, and the extension and retraction of the main tongue is controlled by the square drive pin.
The linkage 6 which can be displaced linearly relative to the door lock middle frame 1 is provided with racks (6111, 6112) which are meshed and matched with the gear 71 of the gear transmission column 7, and can be used as a positioning mark when the gear 71 is installed with the first rack 6111 through a positioning point 73. And, the linkage member 6 is also provided with transmission contact surfaces (6211, 6212) and a first groove 612 matched with the handle pulling block 21, specifically, the handle pulling block 21 passes through a channel on the middle frame 2 and contacts with the first groove 612; here, the drive contact surfaces (6211, 6212) are used for a press fit with drive posts (411, 412) on the counter lock knob block 4.
Wherein the elastic member 5 provided on the door lock middle frame 1 is fitted to the outer circumferential surface of the anti-lock rotation block 4. The outer peripheral surface of the anti-lock rotating block 4 is sequentially provided with an anti-lock working surface 42, a transition surface 43 and an unlocking working surface 44 along the circumferential direction, and the anti-lock rotating block 4 is pressed against the elastic piece 5 through the transition surface 43 to be deformed and switched between an unlocking state and an anti-lock state.
Referring to fig. 3, an exploded view of the assembly relationship of the lock knob block 4, the elastic member 5 and the linkage member 6 is shown. Is configured to: when the back locking knob block 5 rotates to a back locking working position along the first direction, the back locking working surface 42 on the back locking knob block is matched with the elastic piece 5 in a fitting way, as shown in fig. 4, and the transmission columns (411 and 412) are abutted against the transmission contact surfaces (6211 and 6212); the handle pulling block 21 can drive the linkage piece 6 to displace through the first groove 612, and the transmission columns (411, 412) which are propped against the transmission contact surfaces (6211, 6212) can drive the anti-lock knob block 4 to rotate along the second direction until the unlocking working surface 44 is properly matched with the elastic piece 5, as shown in fig. 5; one of the first direction and the second direction is a clockwise direction, and the other is a counterclockwise direction. It should be appreciated that the specific direction may be determined based on the door opening direction and the counter lock mechanism, corresponding to the counter lock or unlock rotation operation.
When in use, when in door back locking operation, the back locking knob block 4 rotates until the back locking working surface 42 of the back locking knob block is matched with the elastic piece 5, and meanwhile, the first transmission column 411 (taking the transmission column as a linkage relation object) on the back locking knob block 4 is propped against the first transmission contact surface 6211 on the linkage piece 6; that is, in the counter-locking operating state, a preliminary mating relationship of the unlocking linkage is established by the first drive post 411 and the first drive contact surface 6211. When the handle 2 is operated in the door to perform unlocking operation, the handle pulling block 21 can drive the handle pulling block to linearly displace downwards through the first groove 612 on the linkage piece 6, and in the displacement process, the first transmission contact surface 6211 on the linkage piece 6 pushes the first transmission column 411 and drives the anti-locking knob block 4 to rotate in the reverse time direction until the unlocking working surface 44 is properly matched with the elastic piece 5, so that reliable unlocking is realized.
Meanwhile, in the unlocking process of the operating handle 2, the gear transmission column 7 coaxially rotated with the lock tongue drives the lock tongue to unlock, so that the counter lock mechanism and the main lock tongue can be synchronously opened when the door handle is operated.
It should be noted that, the elastic member 5 may be implemented in different manners, for example, may be a spring piece connected to the middle frame 1, as long as it can be adapted to the locking rotation block 4 and remains in the locked or unlocked operation state. For example, but not limited to, the preferred embodiment is shown in the drawings, wherein the elastic member 5 is a spring piece with two ends inserted into the channel 11 of the middle frame 1; in the locked state, the back lock knob block 4 is rotated to make the back lock working surface 42 and the long straight surface on the spring piece fit, at this time, the device is in the back lock state, and the transmission columns (411, 412) on the back lock knob block 4 are contacted with the transmission contact surfaces (6211, 6212) on the linkage piece 6. Of course, it is also possible to provide that one end of the spring piece is inserted into a channel (not shown in the figure) of the middle frame 1, that is, only the spring piece with one end connected to the middle frame can be also adapted to the counter-lock rotating block 4, and the counter-lock rotating block 4 is switched between the unlocked state and the counter-lock state by press-fit deformation.
Preferably, the two ends of the spring piece are bent at right angles and are matched with the channel 11, and the two ends of the spring piece are embedded in the channel 11, and the outside of the channel 11 is fixedly connected with the middle frame 2 to limit the spring piece to move out of the channel 11. On the one hand, when the back locking and unlocking operations are carried out, the arc transition surface 43 acts on the middle section of the spring piece, so that the two ends of the spring piece can generate adaptable micro displacement in the channel 11, the side wall of the channel 11 can restrict the integral deformation of the spring piece, and the deformation stored after deformation can provide the acting force for the rotation and reset of the back locking knob block. The arrangement is that the plane matching pair is adopted for determining and enabling the back locking knob block to be kept at the back locking working position or the unlocking working position, and the back locking knob block has better processing and assembling technology.
As shown in the figure, the locking working surface 42 and the unlocking working surface 44 which are matched with the spring piece are both plane, and of course, the locking working surface and the unlocking working surface have better adaptation stability and simple and reliable structure besides meeting the requirements of determining and maintaining the locking working state or the unlocking working state; the transition surface 43 is a circular arc transition surface, that is, the rotational adaptation process corresponds to a "cam working surface" to ensure smooth implementation of the above-described switching dynamic fit relationship.
To further control the manufacturing costs, the linkage 6 is of split design. As shown in the figure, the linkage member 6 is fixedly connected by a rack transmission plate 61 and a linkage plate 62; wherein, a first groove 612 adapted to the handle pulling block 21 and racks (6111, 6112) adapted to the gear driving post 7 are formed on the rack driving plate 61, the rack driving plate 61 has a third groove 611, and the racks are formed on the side wall of the third groove 611. Wherein the transmission contact surfaces (6211, 6212) are formed in the linkage plate 62, the linkage plate 62 has a second groove 621, the transmission contact surfaces (6211, 6212) are formed in the groove wall perpendicular to the linear displacement direction of the second groove 621, and the second groove 621 has a space adapted to the rotation amplitude of the transmission posts (411, 412) so that the rotation process is not interfered.
In practice, the rack gear plate 61 and the link plate 62 may be connected by rivets or screw fasteners, and of course, may be fixed by welding. On the basis of meeting unlocking linkage function, split type design can make full use of the assembly space of lock center, and split type design can effectively reduce part processing manufacturing cost simultaneously.
It can be understood that a direct displacement matching pair is arranged between the structure of the linkage plate 6 and the middle frame 1, for example, but not limited to, a limit guide post 12 is arranged on the middle frame 1 at two sides of the linkage plate 6, and the limit guide post and two side plates of the linkage plate 6 are matched along the direction of the two sides to form the above-mentioned linear displacement matching pair; of course, the design can also be adopted, a slot (not shown in the figure) is formed in a proper position in the middle of the linkage plate 6, and the spacing guide post can be also used for matching with the slot, so that the space layout can be reasonably performed.
In order to further improve the adaptability of the linkage unlocking structure, two linkage structure working groups can be provided, so that the two linkage structure working groups can be selected according to the lock body structures in different door opening directions. Firstly, the meshing teeth on the gear transmission column 7 are arranged in a sector shape, namely, in a range of less than 180 degrees; accordingly, racks are oppositely provided at both side walls of the third groove 611, respectively, so that the gears 71 on the gear post 7 can be engaged with the first rack 6111 or the second rack 6112.
In addition, two transmission columns (411, 412) are symmetrically arranged on the back lock knob block 4, wherein the symmetry refers to that the transmission columns are symmetrically arranged relative to the rotation center of the back lock knob block 4, and the geometric center connecting line of the two transmission columns (411, 412) is parallel to the unlocking working surface so as to ensure that the back lock and unlocking action amplitudes of the two working groups are completely consistent; correspondingly, the second slot 621 of the linkage plate 62 has two drive contact surfaces (6211, 6212), the first drive post 411 and the first drive contact surface 6211, the second drive post 412 and the second drive contact surface 6212 being on the same side, respectively; along the direction of direct displacement, the first transmission contact surface 6211 and the second transmission contact surface 6212 are respectively positioned at two sides of the rotation center of the anti-lock knob block 4, namely, are oppositely designed; and is configured to: the first drive post 411, the first drive contact surface 6211 and the first rack 6111 are a working set, i.e. in the first application case, the gear 71 is meshed with the first rack 6111; the second drive post 412, the second drive contact surface 6212 and the second rack 6112 are one working set, i.e. in a second application case, the gear 71 is engaged with the second rack 6112. Therefore, the lock body structure with different door opening directions can be selected and used alternatively.
In addition, along the linear displacement direction of the linkage member 6, the size of the first groove 612 is larger than that of the handle pulling block 21, and in the non-locked state, the handle pulling block 21 is located at the middle position of the first groove 612, and the upper and lower parts have reserved travel gaps so as to avoid unnecessary interference.
The working principle of the linkage unlocking mechanism according to the present embodiment will be briefly described below with reference to the first rack 6111, the first transmission column 411, and the first transmission contact surface 6211 as the door lock assembly relationship of the working group, and with reference to the main lock tongue retracted non-locked state shown in fig. 6 as the initial state.
In the state of unlocking the main bolt shown in fig. 6, the handle pulling block 21 is located at the middle position of the first groove 612, the unlocking working surface 44 on the back locking knob block 4 is attached to the long straight surface on the spring piece 3, and referring to fig. 5, the driving posts (411, 412) are located at the middle position of the third groove 611 of the linkage plate 62 and are not in contact with the driving contact surfaces (6211, 6212), and the positioning point 73 is located at the middle position of the gear-rack meshing part.
And (3) back locking: when the back lock knob block 4 is turned to the back lock operation position shown in fig. 7, the back lock operation surface 42 on the back lock knob block 4 is attached to the long straight surface on the spring plate 3, and referring to fig. 4, the first transmission column 411 contacts the first transmission contact surface 6211. The other relative positional relationships are the same as those of the non-locked state of fig. 6;
unlocking: when the handle 2 is pushed inwards relative to the surface of the inner panel middle frame 1, the handle pulling block 21 swings downwards by a certain angle along with the swinging of the handle 2; at this time, the handle pulling block 21 contacts with the square groove contact surface on the first groove 612 to push the rack transmission plate 61 to do linear motion, and the linkage plate 62 moves along with the rack transmission plate 61 in the same direction; because the first transmission column 411 is in contact with the first transmission contact surface 6211, the linkage plate 62 pushes the locking knob block 4 to perform rotary motion, and when the unlocking working surface 44 on the locking knob block 4 is attached to the long straight surface on the spring piece 3, the locking knob block 4 stops rotating, and at the moment, the locking function of the locking mechanism is released; please refer to the unlock state diagram of fig. 8.
At the same time, the gear 71 is meshed with the first rack 6111 for transmission, the linear motion of the rack transmission plate 61 drives the gear transmission column 7 to rotate, the gear transmission column 7 is connected with a square transmission pin through a square pin hole 72, and the square transmission pin and the gear transmission column 7 rotate in the same direction, so that the anti-lock mechanism and the main lock tongue are synchronously opened when the door handle is pushed and pulled.
In addition to the above-mentioned linkage unlocking mechanism, this embodiment also provides a door lock, which includes a middle frame 1, and functional components such as a handle 2 and a locking knob 3 located at one side of the middle frame 1; the linkage unlocking mechanism is further included. Preferably, the door lock is a push-pull door lock. Here, other functions of the door lock are not the core points of the present application, and thus are not described herein.
It should be noted that the above examples provided in this embodiment are not limited to the door lock assembly relationship using the first rack 6111, the first driving post 411, and the first driving contact surface 6211 as the power driving working set as shown in the drawings, and it should be understood that the core concept is within the scope of the present application. In addition, the locking mechanism connected with the locking knob can be an electronic locking mechanism, a mechanical locking mechanism or a combination of various locking structures, and the combination can be realized based on the prior art, so that the description is omitted herein.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The linkage unlocking mechanism is used for unlocking linkage of a door lock bolt and a back locking mechanism, and the back locking mechanism comprises a back locking knob block and is characterized by comprising:
the gear transmission column is coaxially and rotatably arranged with the lock tongue;
the linkage piece can linearly displace relative to the door lock middle frame and is provided with a rack which is meshed with the gear of the gear transmission column and is matched with the gear, the linkage piece is provided with a transmission contact surface and a first groove which is matched with a handle pulling block, and the handle pulling block passes through a groove on the door lock middle frame and is contacted with the first groove; and
an elastic piece arranged on the door lock middle frame;
the outer circumferential surface of the back locking knob block is matched with the elastic piece, a back locking working surface, a transition surface and an unlocking working surface are sequentially arranged along the circumferential direction, and the back locking knob block is pressed against the elastic piece through the transition surface to be deformed and switched between an unlocking state and a back locking state; the back lock knob block is provided with a transmission column matched with the transmission contact surface and is configured to: when the back locking knob block rotates to a back locking working position along a first direction, the back locking working surface is matched with the elastic piece in a fitting way, and the transmission column is abutted against the transmission contact surface; the handle pulling block can drive the linkage piece to displace through the first groove, and the transmission column which is propped against the transmission contact surface can drive the anti-lock knob block to rotate along the second direction until the unlocking working surface is matched with the elastic piece;
one of the first direction and the second direction is a clockwise direction, and the other is a counterclockwise direction.
2. The linkage unlocking mechanism according to claim 1, wherein the elastic piece is a spring piece connected with the middle frame, the back locking working surface and the unlocking working surface which are matched with the spring piece are both planes, and the transition surface is an arc transition surface.
3. The interlocking unlocking mechanism according to claim 2, wherein both end portions of the spring piece are bent at right angles.
4. The linkage unlocking mechanism according to claim 1, wherein the linkage member comprises fixedly connected:
a rack drive plate having the rack and the first groove; and
the linkage plate is provided with a second groove, the transmission contact surface is formed on the groove wall of the second groove, which is perpendicular to the linear displacement direction, and the second groove is provided with a space which is suitable for the rotation amplitude of the transmission column.
5. The linkage unlocking mechanism according to claim 4, wherein the rack gear plate has a third groove, and the rack is formed at a side wall of the third groove.
6. The linkage unlocking mechanism according to claim 5, wherein the meshing teeth on the gear drive column are arranged in a fan shape; the side walls of the two sides of the third groove are respectively and oppositely provided with the racks, and gears on the gear transmission column can be meshed with the first racks or the second racks.
7. The linkage unlocking mechanism according to claim 6, wherein the two transmission columns are symmetrically arranged on the back locking knob block, and a geometric center connecting line of the two transmission columns is parallel to the unlocking working surface; correspondingly, the second groove of the linkage plate is provided with two transmission contact surfaces, and the first transmission column and the first transmission contact surface, and the second transmission column and the second transmission contact surface are respectively positioned on the same side; the first transmission contact surface and the second transmission contact surface are respectively positioned at two sides of the rotation center of the back lock knob block along the direct displacement direction; and is configured to: the first transmission column, the first transmission contact surface and the first rack are a working group, and the second transmission column, the second transmission contact surface and the second rack are a working group.
8. The linkage unlocking mechanism according to any one of claims 4 to 7, wherein a direct displacement mating pair is provided between the linkage plate and the middle frame.
9. The linkage unlocking mechanism according to claim 1, wherein the first groove has a size larger than that of the handle block along the linear displacement direction of the linkage member.
10. The door lock comprises a middle frame, a handle and a back locking knob, wherein the handle and the back locking knob are positioned on one side of the middle frame; a linkage unlocking mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910889225.XA CN112523607B (en) | 2019-09-19 | 2019-09-19 | Door lock and linkage type unlocking mechanism thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910889225.XA CN112523607B (en) | 2019-09-19 | 2019-09-19 | Door lock and linkage type unlocking mechanism thereof |
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| CN112523607A CN112523607A (en) | 2021-03-19 |
| CN112523607B true CN112523607B (en) | 2024-02-06 |
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| CN201910889225.XA Active CN112523607B (en) | 2019-09-19 | 2019-09-19 | Door lock and linkage type unlocking mechanism thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7543469B1 (en) * | 2008-04-07 | 2009-06-09 | Sun-Castle Global Precision Technology Co., Ltd. | Mechanism of electronic door lock |
| CN103276956A (en) * | 2013-06-08 | 2013-09-04 | 胡政花 | Automatic anti-theft lock |
| CN103924845A (en) * | 2014-04-25 | 2014-07-16 | 广州市亚太天能信息技术有限公司 | Intelligent door lock capable of being locked outside door and double locked inside door conveniently |
| CN210798508U (en) * | 2019-09-19 | 2020-06-19 | 云丁网络技术(北京)有限公司 | Door lock and linkage type unlocking mechanism thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4952626B2 (en) * | 2008-03-14 | 2012-06-13 | 住友電装株式会社 | Coil device |
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2019
- 2019-09-19 CN CN201910889225.XA patent/CN112523607B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7543469B1 (en) * | 2008-04-07 | 2009-06-09 | Sun-Castle Global Precision Technology Co., Ltd. | Mechanism of electronic door lock |
| CN103276956A (en) * | 2013-06-08 | 2013-09-04 | 胡政花 | Automatic anti-theft lock |
| CN103924845A (en) * | 2014-04-25 | 2014-07-16 | 广州市亚太天能信息技术有限公司 | Intelligent door lock capable of being locked outside door and double locked inside door conveniently |
| CN210798508U (en) * | 2019-09-19 | 2020-06-19 | 云丁网络技术(北京)有限公司 | Door lock and linkage type unlocking mechanism thereof |
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| CN112523607A (en) | 2021-03-19 |
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