CN108487796B - Lock body with coupler knuckle - Google Patents
Lock body with coupler knuckle Download PDFInfo
- Publication number
- CN108487796B CN108487796B CN201810434295.1A CN201810434295A CN108487796B CN 108487796 B CN108487796 B CN 108487796B CN 201810434295 A CN201810434295 A CN 201810434295A CN 108487796 B CN108487796 B CN 108487796B
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- Prior art keywords
- lock
- transmission rod
- transverse transmission
- transverse
- arm
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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
- 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
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- 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
- E05B15/10—Bolts of locks or night latches
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- 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
- E05B15/10—Bolts of locks or night latches
- E05B15/101—Spring-retracted bolts
Abstract
The lock body with the coupler knuckle comprises a lock shell, wherein a bevel tongue component, a coupler knuckle piece, a first transverse transmission rod, a second transverse transmission rod, a first lock control shifting handle and a bevel tongue shifting fork are arranged in the lock shell; when the first lock control shifting handle carries out the first round of rotary unlocking, the first lock control shifting arm only shifts the first transverse transmission rod to move leftwards so as to enable the coupler knuckle head to swing back into the lock shell, and the second transverse transmission rod moves leftwards along with the first transverse transmission rod. When the first lock control shifting handle carries out the second round of rotary unlocking, the first lock control shifting handle only shifts the second transverse transmission rod to move leftwards to drive the inclined tongue shifting fork to rotate to retract the inclined tongue. When the first lock control shifting handle is used for implementing rotary locking, the first transverse transmission rod moves rightwards to enable the head of the coupler knuckle to swing out to stand in a locking state, and when the inclined tongue shifting fork does not obtain a command for withdrawing the inclined tongue, the inclined tongue is automatically reset and stretches out of the lock shell under the drive of the inclined tongue reset spring, and the inclined tongue shifting fork is reset. Thus simplifying the unlocking operation steps of the lock body.
Description
Technical Field
The invention relates to a lock body, in particular to a lock body with a coupler knuckle and a bevel tongue.
Background
In order to provide a better anti-theft effect, the lock body device is generally provided with multiple protection devices, for example, multiple lock bolts, such as a latch bolt, a square bolt, a hook bolt, and the like, are simultaneously arranged. An antitheft lock with a latch as disclosed in chinese patent No. CN201420014679.5, for example, comprises a lock housing and an auxiliary latch bolt assembly 10, a latch bolt assembly 16 and a latch bolt assembly disposed within the lock housing. The lock tongue assembly comprises a lock tongue plate 9 which is transversely arranged, a main lock tongue 11 which is riveted and fixed on the lock tongue plate 9, and a coupler knuckle steering shaft 6, wherein the coupler knuckle 8 is rotatably arranged on the coupler knuckle steering shaft 6. A knuckle torsion spring is provided between the knuckle 8 and the lock housing to maintain the knuckle 8 in a locked state. The latch assembly 16 includes a latch, a latch link positioned behind the latch, and a latch return spring mounted on the latch link. A handle connecting seat used for connecting with a handle square iron is also rotationally arranged in the lock shell, and a bevel bolt shifting fork used for being in transmission connection with the bevel bolt component 16 is arranged on the handle connecting seat. Although the complete unlocking process is not discussed in detail in this patent, it is known from the transmission connection between the internal components of the lock, which is characterized by the description and the related views in the specification, that if a user needs to unlock the lock from outside the door, he needs to rotate the lock cylinder by using a key, then toggle the transmission mechanism in the lock body by using the lock cylinder toggle arranged on the lock cylinder to drive the lock tongue plate 9 to drag the main lock tongue 11 and the hook tongue 8 to retract into the lock body, and then drive the handle engagement seat to rotate by turning the handle to retract the oblique tongue. All lock bolts on the anti-theft lock can be retracted into the lock shell to complete unlocking, and the operation is relatively complicated. Therefore, how to simplify the unlocking operation steps of the lock body by improving the structure of the lock body while considering the anti-theft performance is an urgent problem to be solved. Secondly, the structure of the lock body is very complex, which results in a large number of components in the lock body, for which reason further optimization is also required.
Disclosure of Invention
The invention provides a lock body with a coupler knuckle, which aims at overcoming the defects of the prior art and comprises a lock shell, wherein a first opening part and a second opening part which are separated left and right are arranged on a front side panel of the lock shell; at least a latch bolt component and a hook bolt piece are arranged in the lock shell; the latch assembly comprises a latch, a latch rod body positioned behind the latch, and a latch return spring capable of driving the latch to return, wherein the latch can longitudinally move so as to extend out of the first opening or retract into the lock shell; the coupler knuckle piece comprises a coupler knuckle connecting part and a coupler knuckle head part in a bent hook shape, and the coupler knuckle connecting part is rotatably arranged in the lock shell so that the coupler knuckle head part can swing out of the lock shell or swing back into the lock shell in the second opening part; the lock is characterized in that a first transverse transmission rod, a second transverse transmission rod, a first lock control shifting handle and a bevel tongue shifting fork are also arranged in the lock shell; wherein:
the first transverse transmission rod is arranged in the lock shell in a transversely movable manner; the first transverse transmission rod is in transmission connection with the coupler knuckle connecting part and can drive the coupler knuckle connecting part to rotate, so that the coupler knuckle head can swing out of the second opening part to stand in a locking state when the first transverse transmission rod moves rightwards, and conversely, the coupler knuckle head can swing back to the inside of the lock shell to lie on the side in an unlocking state when the first transverse transmission rod moves leftwards;
The second transverse transmission rod is arranged in the lock shell in a transversely movable manner, a differential transmission structure is arranged between the second transverse transmission rod and the first transverse transmission rod, the second transverse transmission rod can be driven to move leftwards when the first transverse transmission rod moves leftwards through the differential transmission structure, and the second transverse transmission rod can still continue to move leftwards after the first transverse transmission rod stops moving leftwards;
the first lock control shifting handle is used for responding to an unlocking instruction or a locking instruction and comprises a first lock control shifting handle main body and a first lock control shifting arm extending from the first lock control shifting handle main body, and the first lock control shifting handle main body is rotatably arranged in the lock shell;
when the first lock control shifting handle rotates in response to an unlocking instruction, the first lock control shifting arm is shifted to the first transverse transmission rod to implement first-stage shifting unlocking transmission, and is shifted to the second transverse transmission rod to implement second-stage shifting unlocking transmission; the first-stage toggle unlocking transmission means that when the first lock control shifting handle performs first-round rotary unlocking, the first lock control shifting arm only toggles the first transverse transmission rod to move leftwards so that the coupler knuckle head can swing back to the inside of the lock shell to be in an unlocking state; the second-stage toggle unlocking transmission means that when the first lock control shifting handle continues to rotate to implement the second-round rotary unlocking on the basis of implementing the first-stage toggle unlocking transmission, the first lock control shifting arm only shifts the second transverse transmission rod to continue to move leftwards;
When the first lock control shifting handle rotates in response to a locking instruction, the first lock control shifting arm shifts the first transverse transmission rod to move rightwards so that the coupler knuckle head swings out to stand in a locking state, and the second transverse transmission rod moves rightwards along with the first transverse transmission rod;
the inclined tongue shifting fork is rotatably arranged in the lock shell and used for responding to a driving instruction of the second transverse transmission rod to retract the inclined tongue; the latch shifting fork comprises a latch shifting arm which is shifted onto the latch rod body part and a transmission shifting arm which is positioned in the transverse movement stroke of the second transverse transmission rod, when the second transverse transmission rod is shiftedWhen the movable rod responds to an unlocking instruction and moves leftwards in the second-stage poking unlocking transmission, the second transverse transmission rod also pushes the transmission poking arm so that the inclined tongue poking arm of the inclined tongue poking fork can rotate and retract the inclined tongue into the lock shell, therebyLetting said incline The tongue shifting fork executes the instruction for retracting the inclined tongueThe method comprises the steps of carrying out a first treatment on the surface of the When the latch fork does not obtain the instruction of retracting the latch, the latch is automatically reset and extends out of the lock shell under the drive of the latch reset spring, and the latch fork is reset.
The first lock control shifting handle is mainly used for realizing locking control of the door lock by combining an external lock liner and a small handle type opening and closing door controller. The first lock control shifting handle is characterized in that the first lock control shifting handle can rotate at least two times, so that unlocking hand feeling is greatly improved, or the characteristics of a mechanical lock liner are met, unlocking force is reduced, service life of the lock liner is prolonged, and the like, and a coupler knuckle and an inclined tongue can be opened in a separated mode.
The first transverse transmission rod is an intermediate transition transmission piece arranged between the coupler knuckle piece and the first lock control shifting handle and can respond to an unlocking instruction or a locking instruction transmitted by the first lock control shifting handle to correspondingly drive the coupler knuckle to rotate so as to respectively execute instructions of withdrawing or shifting out the coupler knuckle. And when the coupler knuckle head is in a standing state, the coupler knuckle head is in a locking state, and otherwise, the coupler knuckle head is in a lateral lying state, the coupler knuckle head is in an unlocking state. The locking refers to the process and the result that the lock tongue ejects to lock the door leaf, and the unlocking refers to the process and the result that the lock tongue is retracted into the lock shell to unlock the door leaf.
The second transverse transmission rod is an intermediate transition transmission piece arranged between the latch shifting fork and the first lock control shifting handle and is driven by the first transverse transmission rod to move, and the second transverse transmission rod can respond to an unlocking instruction transmitted by the first lock control shifting handle to push the latch shifting fork to rotate so that the latch shifting fork can rotate to retract the latch into the lock shell, namely, the latch shifting fork executes an instruction for retracting the latch. If the unlocking instruction transmitted by the first lock control shifting handle fails (or ends), the inclined tongue shifting fork resets, and the second transverse transmission rod is also automatically reset fully or partially under the drive of the reset force of the inclined tongue shifting fork no matter whether the first transverse transmission rod resets or not.
The second transverse transmission rod and the first transverse transmission rod are in transmission connection through a differential transmission structure. The above features define a drive connection relationship and a drive connection structure between the second transverse drive rod and the first transverse drive rod. And a differential transmission connection relation is formed between the second transverse transmission rod and the first transverse transmission rod through a differential transmission structure. On the basis, the coupler knuckle and the inclined tongue can be retracted successively by matching the two rounds of rotary unlocking implemented by the first lock control shifting arm.
When the first lock control shifting handle is used for implementing the first round of rotary unlocking, the first lock control shifting arm only shifts the first transverse transmission rod to move leftwards, and the first lock control shifting arm only shifts the first transverse transmission rod to move leftwards and does not shift the second transverse transmission rod to move leftwards when the first lock control shifting handle is used for implementing the first round of rotary unlocking, but the phenomenon that other lock body internal components can be shifted simultaneously is not excluded. Likewise, when the first lock control shifting handle continues to rotate to implement the second round of rotary unlocking, the first lock control shifting arm only shifts the second transverse transmission rod to move, which can be interpreted as that when the first lock control shifting handle continues to rotate to implement the second round of rotary unlocking, the first lock control shifting arm only shifts the second transverse transmission rod to move leftwards and does not shift the first transverse transmission rod to move leftwards any more, but does not exclude that other lock inner components can be shifted to move simultaneously.
In the above-mentioned modified solution, although reference is made to the left and right directions or the left and right directions, this definition is mainly used for explaining the structure of the present invention, and the lock body of the present invention can be installed and used vertically and applied to the case where the first and second transverse transmission rods move up and down. In addition, the left and right are two opposite directions in the lateral direction. Referring to the state shown in fig. 1, the transverse direction and the longitudinal direction are two directions perpendicular to each other and simultaneously parallel to the paper surface on which fig. 1 is shown, the Y-axis direction is defined as being located in the longitudinal direction, and the X-axis is defined as being in the transverse direction.
Secondly, the dial-up connection used in the scheme means that not only can transmission connection be realized when torque is transmitted between the two, but also one party can transmit torque and mechanical control signals to the other party in a rotatable and toggle mode. For this purpose, the two components of the dial-up connection can be connected only when torque is transmitted, or can always be in leaning connection, hinging and the like, and the specific dial-up scheme can be set according to the requirements of the field.
According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: the latch assembly, the coupler knuckle member, the first transverse transmission rod, the second transverse transmission rod, the first lock control lever and the latch fork have the transmission connection relation described above. Thus, after the first lock control shifting handle responds to the unlocking instructions of the door opening and closing controllers such as the lock liner, the first-stage shifting unlocking transmission can be implemented to the first transverse transmission rod successively, the second-stage shifting unlocking transmission can be implemented to the second transverse transmission rod, and then the coupler knuckle and the inclined tongue can be retracted successively, namely, the coupler knuckle and the inclined tongue are retracted after two rounds of rotary unlocking are completed, and in the process, the other door opening and closing controller such as a handle is not required to be driven by a human hand to assist unlocking, so that the operation is simple and convenient. And the first lock control shifting handle adopts a grading shifting mode, so that the key inserted into the lock liner and the first lock control shifting handle are prevented or reduced from being broken due to the fact that the rotating resistance transmitted by the coupler knuckle part and the inclined tongue component is born at the same time, and the service lives of the lock body and the key are effectively prolonged. Therefore, the lock body with the coupler knuckle not only can improve the anti-theft performance of the lock body by simultaneously configuring the coupler knuckle and the inclined tongue, but also can simplify the unlocking operation steps of the lock body by reasonably arranging the transmission connection relation among the inclined tongue component, the coupler knuckle piece, the first transverse transmission rod, the second transverse transmission rod, the first lock control shifting handle and the inclined tongue shifting fork.
As for the differential transmission structure, there are various embodiments, two of which are provided below:
in a first embodiment, the differential transmission structure comprises a strip hole arranged on one transmission rod along the moving direction of the transmission rod and a protruding arm arranged on the other transmission rod, wherein the protruding arm is inserted into the strip hole; when the first transverse transmission rod moves leftwards, the protruding arm is combined to one side frame of the strip-shaped hole, so that the second transverse transmission rod can be driven to move leftwards, and after the first transverse transmission rod stops moving leftwards, the strip-shaped hole can still provide a avoidance space for the second transverse transmission rod to continue moving leftwards.
According to a further technical scheme, when the first transverse transmission rod moves rightwards, the protruding arm is combined to the frame on the other side of the strip hole, so that the second transverse transmission rod can be driven to move rightwards.
In a second embodiment, the differential transmission structure comprises a first transverse rod pushing arm arranged on the first transverse transmission rod and a second transverse rod left pushing arm arranged on the second transverse transmission rod, wherein the second transverse rod left pushing arm is positioned at the left side of the first transverse rod pushing arm and falls into the left moving stroke of the first transverse rod pushing arm; when the first transverse transmission rod moves leftwards, the first transverse rod pushing arm pushes the second transverse rod left pushing arm so as to drive the second transverse transmission rod to move leftwards, and after the first transverse transmission rod stops moving leftwards, the second transverse transmission rod can still continue to move leftwards.
The further technical scheme may be that a second horizontal rod right pushing arm is further arranged on the second horizontal transmission rod, and the first horizontal rod pushing arm is arranged between the second horizontal rod left pushing arm and the second horizontal rod right pushing arm; when the first transverse transmission rod moves rightwards, the first transverse rod pushing arm pushes the second transverse rod right pushing arm, so that the second transverse transmission rod can be driven to move rightwards.
In order to further enhance the anti-theft performance of the lock body, the further technical scheme may be that a latch limiting protrusion is further provided on the first transverse transmission rod, when the first transverse transmission rod moves rightwards to drive the coupler knuckle head to swing out of the lock housing, the latch limiting protrusion also moves rightwards to the rear of the latch and enables the latch not to be retracted into the lock housing, otherwise, when the first transverse transmission rod moves leftwards, the latch limiting protrusion also moves leftwards to the retraction stroke area of the latch so as to enable the latch to be freely retracted into the lock housing. Therefore, the first transverse transmission rod moving rightwards can drive the coupler knuckle head to swing out of the lock shell simultaneously or successively, and the inclined tongue is propped up and dead through the inclined tongue limiting protrusion, so that a thief is prevented from pushing the inclined tongue back into the lock shell by inserting a lamellar tool into a door slot, and the inclined tongue is enabled to have insertion prevention performance in a relatively simple structure.
Besides the above-mentioned switching of the hook tongue piece between the unlocking state and the locking state is realized by the first lock control shifting handle responding to the unlocking instruction or the locking instruction, the invention further provides the following technical scheme: the second lock control shifting handle is used for responding to an unlocking instruction or a locking instruction, the second lock control shifting handle, the first lock control shifting handle and the second lock control shifting handle are arranged left and right in the lock shell, the second lock control shifting handle comprises a second lock control shifting handle main body and a second lock control shifting arm extending from the second lock control shifting handle main body, and the second lock control shifting arm is shifted to the first transverse transmission rod; when the second lock control shifting handle rotates in response to a locking instruction, the second lock control shifting arm can shift the first transverse transmission rod to move rightwards so as to enable the coupler knuckle head to swing out and stand in a locking state; when the second lock control shifting handle rotates in response to an unlocking instruction, the second lock control shifting arm can shift the first transverse transmission rod to move leftwards so that the coupler knuckle head swings back to the inside of the lock shell in an unlocking state in the second opening part.
Further technical scheme can be that the second accuse lock is dialled the arm and is a pair of sheep horn form including second lock and dials the arm and the second and unblanks and dial the arm, be provided with on the first horizontal transfer line and can extend to a pair of first link arm between the sheep horn. In this way, when the second lock control shifting handle rotates in response to a locking instruction of the door opening and closing controller such as a door handle, the second lock control shifting arm can push the first transverse transmission rod to move rightwards through the first linkage arm so as to enable the coupler knuckle head to swing out to stand in a locking state; when the second lock control shifting handle rotates in response to an unlocking instruction of an opening and closing door controller such as a door handle, the second unlocking shifting arm can push the first transverse transmission rod to move leftwards through the first linkage arm so that the coupler knuckle head swings back to the inside and the side of the lock shell in an unlocking state in the second opening part.
According to the above scheme, in fact, the second lock control shifting arm is shifted to connect with the first transverse transmission rod, the second lock control shifting arm is in an independent claw shape, a pit or a groove capable of receiving the independent second lock control shifting arm is arranged on the first transverse transmission rod, and the second lock control shifting arm extends into the groove to be matched and transmitted with two sides of the groove.
The second lock control shifting handle is mainly used for combining an external door handle and other large-force door opening and closing controllers to realize one-time quick opening control of the door lock. Compared with the first lock control shifting handle, the second lock control shifting handle has the greatest characteristic that the coupler knuckle and the inclined tongue can be directly retracted once when the second lock control shifting handle rotates for one rotation or rotates for a rotation angle smaller than 180 degrees, so that quick unlocking is realized, and the unlocking efficiency is greatly improved.
The second lock control shifting handle and the first lock control shifting handle are arranged left and right in the lock shell, mainly define that the second lock control shifting handle and the first lock control shifting handle are not linked, are separated in space, are arranged left and right in the lock shell and are positioned at the side edge positions of the first transverse transmission rod and the second transverse transmission rod.
In order to achieve the retraction of the latch through rotating the second lock control shift lever, a further technical scheme may be that the second lock control shift lever is located on the right side of the latch fork, and when the second lock control shift lever rotates to retract the hook head into the lock housing in response to an unlocking command, the second lock control shift lever also pushes the latch fork to rotate so that the latch fork can retract the latch, namely, the latch fork executes a command of retracting the latch. Therefore, when a user needs to unlock, the user can send an unlocking instruction to the second lock control shifting handle by rotating the door opening and closing controller such as a door handle, so that the coupler knuckle head and the inclined tongue can be simultaneously or successively retracted into the lock shell, and the lock is simple, convenient and quick.
According to a further technical scheme, before the second lock control shifting handle starts to rotate in response to an unlocking instruction, a gap is reserved between the inclined tongue shifting fork and the second lock control shifting handle. Therefore, before or at the same time when the latch shifting fork starts to retract the latch, the second unlocking shifting arm of the second lock control shifting handle is combined with the first linkage arm to push the first transverse transmission rod to move leftwards preferentially, so that the latch limiting protrusion is enabled to move leftwards preferentially out of the retraction stroke area of the latch, the situation that the latch is blocked by the latch limiting protrusion still in the retraction stroke area of the latch when the latch retreats can be avoided, and further, the phenomenon that the latch limiting protrusion and the latch are mutually interfered and blocked to block the rotary unlocking of the second lock control shifting handle can be prevented.
Preferably, the gap is larger than a depth of the latch limiting protrusion extending to the rear of the latch in the left-right direction. The size of the gap is of course also dependent on the distance between the tongue limit projection and the rear wall surface of the tongue in the longitudinal direction, which gap may be small or even zero if the longitudinal distance is large. The latch is retracted and retracted, and the latch limiting protrusion is moved out of the rear of the latch, so that the comprehensive moving track between the latch limiting protrusion and the latch limiting protrusion is inclined.
Because of the above features and advantages of the present invention, it is applicable to lock body products having a knuckle and a tongue (or square) for this purpose.
Drawings
FIG. 1 is a schematic elevational view of a lock body with a knuckle utilizing the teachings of the present invention, with the upper housing omitted for clarity of illustration of the drive connection between the various internal components within the lock body; the first lock control shifting handle 31 is ready to be shifted with the first transverse transmission rod to implement the first-stage shifting unlocking transmission;
FIG. 2 is a schematic front plan view of a lock body with a knuckle according to the present invention, wherein a first lock lever 31 is shown after a first-stage toggle unlocking transmission is performed, so that a knuckle head swings back to the inside of the lock housing and is in an unlocking state;
FIG. 3 is a schematic front plan view of a lock body with a knuckle according to the present invention, wherein a first lock lever 31 is shown performing a second level toggle unlocking transmission to retract a latch bolt into a lock housing 1;
FIG. 4 is a schematic diagram of a first embodiment of the differential transmission structure;
FIG. 5 is a schematic diagram of a second embodiment of the differential transmission structure;
FIG. 6 is a schematic front plan view of a lock body with a knuckle embodying aspects of the present invention, with a second transverse drive rod above the first transverse drive rod omitted from the view shown in FIG. 1;
FIG. 7 is a schematic perspective view of the first transverse transmission rod;
fig. 8 is a schematic perspective view of the second transverse transmission rod.
Detailed Description
The structure of the lock body with the coupler knuckle applying the technical scheme of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 8, a lock body 100 with a knuckle includes a lock housing 1, a first opening (hidden by the knuckle assembly 400, not labeled) and a second opening (hidden by the knuckle member 500, not labeled) are provided on a front side panel 11 of the lock housing 1, which are separated left and right; at least the latch assembly 400 and the knuckle member 500 are disposed within the lock housing 1. The latch assembly 400 includes a latch 4, a latch rod body 41 located behind the latch 4, and a latch return spring 42 that is sleeved on the latch rod body 41 and is capable of driving the latch 4 to return, where the latch 4 is capable of moving longitudinally so as to be capable of extending or retracting into the lock housing 1 in the first opening. A pair of standing blocks, namely a front standing block 43 and a rear standing block 44, are sleeved on the tongue rod body 41, the front standing block 43 is positioned on the lock housing 1, and the rear standing block 44 is slidably arranged on a longitudinally extending chute of the lock housing 1. The tongue return spring 42 is arranged between the tongue 4 and the front upstanding piece 43. The coupler knuckle 500 includes a coupler knuckle connecting portion 51 and a coupler knuckle head portion 5 having a hook shape, and the coupler knuckle connecting portion 51 is rotatably disposed in the lock housing 1 so that the coupler knuckle head portion 5 can swing out of the lock housing 1 in the second opening portion to be in a standing state or swing back into the lock housing 1 to be in a side lying state.
A first transverse transmission rod 21, a second transverse transmission rod 22, a first lock control shifting handle 31 and a cam shifting fork 6 are also arranged in the lock housing 1. They are discussed in detail below, respectively.
As shown in fig. 6 and 7, a first cross bar elongated hole 216, a first cross bar boss 217 and a first link arm 212 that extend in the transverse direction are disposed at the left end position of the first transverse transmission rod 21, a first cross bar arc hole 214 that extends in the transverse direction and takes an arc shape, a knuckle driving post 213 disposed at the side of the first cross bar arc hole 214, and a second link arm 215 are disposed at the right end position of the first transverse transmission rod 21. The lock housing 1 is fixedly connected with a latch fork positioning column 13, a first housing guiding column 14 extending into the first cross bar strip hole 216 and a second housing guiding column 12 extending into the first cross bar arc hole 214. The first transverse transmission rod 21 can move transversely on the first shell guide post 14 and the second shell guide post 12 by means of the first transverse rod strip hole 216 and the first transverse rod arc hole 214. The first transverse transmission rod 21 is in transmission connection with the knuckle connecting part 51 and can drive the knuckle connecting part 51 to rotate. The knuckle connecting portion 51 is provided with a knuckle shaft hole (which is blocked by the second housing guide post 12 and is not marked) and a knuckle swing avoiding hole 53, and the knuckle swing avoiding hole 53 is substantially L-shaped. The knuckle connecting portion 51 is rotatably disposed on the second housing guide post 12 through the knuckle shaft hole, and is sleeved on the knuckle driving post 213 through the knuckle swing avoiding hole 53. A first torsion spring 71 is also provided between the knuckle drive post 213 and the second housing guide post 12 to maintain the knuckle head 5 swung out of the lock housing 1. A second torsion spring 72 is arranged between the first cross bar boss 217 on the first transverse transmission rod 21 and the latch fork positioning post 13 on the lock housing 1, and the second torsion spring 72 can also keep the hook bolt head 5 swinging out of the lock housing 1. Thus, when the first transverse transmission rod 21 moves rightwards, the right end portion of the first transverse transmission rod 21 swings clockwise under the cooperative guidance of the second casing guide post 12 and the first transverse rod arc hole 214, so that the coupler knuckle driving post 213 on the first transverse transmission rod 21 pushes the coupler knuckle connecting portion 51 to rotate clockwise, and the coupler knuckle head 5 swings out of the second opening portion to stand in the locked state, otherwise, when the first transverse transmission rod 21 moves leftwards, the coupler knuckle head 5 swings back to the inner side of the lock casing 1 to lie in the unlocked state.
As shown in fig. 6 and 8, a second cross bar pushing handle 224 and a second cross bar guiding protrusion 225 for pushing the latch fork 6 are disposed at the left end position of the second transverse transmission rod 22, and a second cross bar elongated hole 223 is disposed at the right end position of the second transverse transmission rod 22. A housing guide groove adapted to the second rail guide projection 225 is provided in an upper housing (not shown) of the lock housing 1. The second transverse transmission rod 22 is sleeved on the second shell guide post 12 through the second transverse rod strip hole 223, and the second transverse rod guide protrusion 225 extends into the shell guide groove. In this way, the second transverse transmission rod 22 is arranged in the lock housing 1 in a transversely movable manner by means of the combination of the second transverse rod guide projection 225 with the housing guide groove and the combination of the second transverse rod strip hole 223 with the second housing guide post 12 with a differential transmission structure with the first transverse transmission rod 21.
As shown in fig. 4, 7 and 8, the differential transmission structure includes a first rail push arm 211 disposed on the first transverse transmission rod 21 and located on the right side of the second linkage arm 215, and a second rail left push arm 221 disposed on the second transverse transmission rod 22, the second rail left push arm 221 being located on the left side of the first rail push arm 211 and falling within a stroke in which the first rail push arm 211 moves leftward. Thus, when the first transverse transmission rod 21 moves leftwards, the first transverse rod pushing arm 211 pushes the second transverse rod left pushing arm 221, so that the second transverse transmission rod 22 can be driven to move leftwards, and after the first transverse transmission rod 21 stops moving leftwards, the second transverse transmission rod 22 can still continue to move leftwards. In order to enable the first transverse transmission rod 21 to drive the second transverse transmission rod 22 to return when moving rightwards, a second transverse rod right push arm 222 is further arranged on the second transverse transmission rod 22, and the first transverse rod push arm 211 is arranged between the second transverse rod left push arm 221 and the second transverse rod right push arm 222. Thus, when the first transverse transmission rod 21 moves rightward, the first transverse rod pushing arm 211 pushes the second transverse rod right pushing arm 222, so that the second transverse transmission rod 22 can be driven to move rightward.
The differential transmission structure has various embodiments, and another differential transmission structure is shown in fig. 5. The differential transmission structure includes a long hole 220a provided on the second lateral transmission rod 22a and arranged in the moving direction thereof, and a protruding arm 211a provided on the first lateral transmission rod 21, the protruding arm 211a being inserted into the long hole 220a. Of course, in other embodiments, the raised arm 211a and the elongated hole 220a may also be interchanged, i.e., the raised arm 211a is provided on the second transverse transmission rod 22a and the elongated hole 220a is provided on the first transverse transmission rod 21 a. When the first transverse transmission rod 21 moves leftwards, the protruding arm 211a is combined with the left side frame 221a of the strip-shaped hole 220a so as to drive the second transverse transmission rod 22a to move leftwards, and after the first transverse transmission rod 21a stops moving leftwards, the strip-shaped hole 220a can still provide a avoidance space for the second transverse transmission rod 22a to continue moving leftwards. When the first transverse transmission rod 21a moves rightward, the protruding arm 211a is coupled to the right side frame 222a of the elongated hole 220a, so as to drive the second transverse transmission rod 22 to move rightward.
As shown in fig. 1, 2 and 3, the first lock control lever 31 is mainly used for realizing locking control of the door lock in combination with an external lock cylinder and is used for responding to an unlocking command or a locking command. In addition, in other embodiments, the first lock lever 31 may be an opening/closing door controller for coupling with an external small handle. The first lock control shift lever 31 includes a first lock control shift lever body 311 and a first lock control shift arm 310 extending from the first lock control shift lever body 311, where the first lock control shift lever body 311 is rotatably disposed in the lock housing 1.
As shown in fig. 1, 2 and 3, the latch fork 6 is rotatably provided on the latch fork positioning post 13 for retracting the latch 4 in response to a driving command of the second traverse transmission lever 22. The latch fork 6 includes a latch fork arm 62 which is withdrawn to the rear upstanding piece 44 on the latch lever body 41 and a transfer fork arm 61 which is positioned within the lateral travel of the second lateral drive lever 22.
As shown in fig. 1, 2 and 3, the process of the first lock control knob 31 for switching the coupler knuckle 500 and the latch assembly 400 between the unlocked state and the locked state in response to the unlocking command and the locking command of the mechanical lock cylinder is discussed in detail below.
When the first lock control shifting handle 31 rotates forward in response to the unlocking command of the mechanical lock container, the first lock control shifting arm 310 shifts the second linkage arm 215 of the first transverse transmission rod 21 to implement the first-stage shifting unlocking transmissionThe first-stage toggle unlocking transmission means that when the first lock control shifting handle 31 performs a first round of rotary unlocking, the first lock control shifting arm 310 only shifts the first transverse transmission rod 21 to move leftwards so that the knuckle head 5 can swing back to the inner side of the lock housing 1 to be in an unlocking state, and at this time, the first lock control shifting arm 310 does not shift the second transverse transmission rod 22 to move leftwards. The first transverse transmission rod 21 moving leftwards pushes the second transverse rod left pushing arm 221 on the second transverse transmission rod 22 through the first transverse rod pushing arm 211, so that the second transverse transmission rod 22 can be driven to move leftwards, and after the first transverse transmission rod 21 stops moving leftwards, the second transverse transmission rod 22 can still continue to move leftwards. Subsequently, the first lock control shifting arm 310 shifts to connect with the second horizontal rod right pushing arm 222 of the second transverse transmission rod 22 to implement second-stage shifting unlocking transmission. The second-stage toggle unlocking transmission means that when the first lock control shifting handle 31 continues to rotate to perform the second-round rotary unlocking on the basis of performing the first-stage toggle unlocking transmission, the first lock control shifting arm 310 only shifts the second transverse transmission rod 22 to continue to move leftwards and does not shift the first transverse transmission rod 21 to move leftwards. The second transverse transmission rod 22 moving leftwards pushes the transfer pulling arm 61 to further enable the latch pulling arm 62 of the latch pulling fork 6 to rotate to pull the rear standing block 44 of the latch assembly 400 longitudinally backwards so as to retract the latch 4 into the lock housing 1, thereby Let the institute The latch fork 6 executes an instruction to retract the latch 4. However, if the unlocking command transmitted from the first lock control shifting handle 31 fails (or ends), the latch shifting fork 6 does not obtain the command and torque for retracting the latch 4, the latch 4 is reset and extended out of the lock housing 1 under the elastic pushing action of the latch return spring 42, and drives the latch shifting fork 6 to be reset, and the second transverse transmission rod 22 is also fully or partially automatically reset under the driving of the reset force of the latch shifting fork 6, regardless of whether the first transverse transmission rod 21 is reset. It can be seen that the first locking lever 31 is characterized, at its greatest, by the possibility of performing at least two rotations, thus not only greatly increasing the openingThe hand feeling of the lock or the characteristics of the mechanical lock liner are met, the strength of unlocking force can be reduced, the service life of the lock liner is prolonged, and the coupler knuckle 5 and the inclined tongue 4 can be opened in a separated mode.
When the first lock control shifting handle 31 reversely rotates in response to a locking instruction of the mechanical lock liner, the first lock control shifting arm 310 shifts the first cross bar push arm 211 of the first transverse transmission rod 21 to move rightwards from shifting the first transverse transmission rod 21, so that the coupler knuckle head 5 swings out to stand in a locked state. The first transverse transmission rod 21 moving rightward pushes the second transverse rod right push arm 222 through the first transverse rod push arm 211 to drive the second transverse transmission rod 22 to move rightward. When the second transverse transmission rod 22 is separated from the latch fork 6, the latch fork 6 is not instructed to retract the latch 4, the latch 4 is automatically reset and extended out of the lock housing 1 under the drive of the latch reset spring 42, and the latch fork 6 is also reset.
As can be seen from the above, the latch assembly 400, the knuckle member 500, the first transverse transmission lever 21, the second transverse transmission lever 22, the first lock lever 31 and the latch fork 6 have the above-described driving connection relationship. In this way, after the first lock control shifting handle 31 responds to the unlocking command of the mechanical lock liner, the first-stage shifting unlocking transmission can be implemented to the first transverse transmission rod 21 successively, the second-stage shifting unlocking transmission can be implemented to the second transverse transmission rod 22, then the coupler knuckle and the inclined tongue 4 can be retracted successively, namely, the coupler knuckle head 5 and the inclined tongue 4 are retracted after two rounds of rotary unlocking are completed, and in the process, the operation of driving the door opening and closing controller such as a handle is not required to be completed by hands, so that the operation is simple and convenient. And the first lock control shifting handle 31 adopts a step shifting mode, so that the key inserted into the mechanical lock liner and the first lock control shifting handle 31 are prevented or reduced from being broken due to the fact that the rotation resistance transmitted by the coupler knuckle member 500 and the inclined bolt assembly 400 is born at the same time, and the service lives of the lock body 100 and the key are effectively prolonged. It can be seen that the lock body 100 with the coupler knuckle not only can improve the anti-theft performance of the lock body 100 by configuring the coupler knuckle and the latch bolt 4 at the same time, but also can simplify the unlocking operation steps of the lock body 100 by reasonably arranging the transmission connection relationship among the latch bolt assembly 400, the coupler knuckle piece 500, the first transverse transmission rod 21, the second transverse transmission rod 22, the first lock control shifting handle 31 and the latch bolt shifting fork 6.
As shown in fig. 6, in addition to the proposed switching of the latch assembly 400 and the knuckle member 500 between the unlocked and locked states in response to an unlocking or locking command of the mechanical lock cylinder by the first lock lever 31, the lock body 100 further includes a second lock lever 32 for responding to an unlocking or locking command. The second lock control shifting handle 32 is mainly used for combining an external door handle and other large-force opening and closing door controllers to realize one-time quick opening control of the door lock. Compared with the first lock control shifting handle 31, the second lock control shifting handle 32 has the greatest characteristic that the coupler knuckle head 5 and the inclined tongue 4 can be directly retracted at one time in one rotation or in rotation operation with a rotation angle smaller than 180 degrees, so that quick unlocking is realized, and the unlocking efficiency is greatly improved.
The second lock control shift lever 32 is not linked with the first lock control shift lever 31, and is spatially separated to present left and right positions which are arranged in the lock housing 1 and are located at the side positions of the first transverse transmission rod 21 and the second transverse transmission rod 22. The second lock control knob 32 is also located on the right side of the tongue shifter 6. The second lock lever 32 includes a second lock lever body 320 and second lock lever arms (321, 322) extending from the second lock lever body 320. A lever return spring 7 is provided between the second lock lever body 320 and the lock housing 1. The second lock control shifting arms (321, 322) are in a pair of claw shapes and comprise a second lock locking shifting arm 321 and a second lock unlocking shifting arm 322, and the first transverse transmission rod 21 is provided with a first linkage arm 212 which can extend between the pair of claw shapes. Thus, when the second lock control knob 32 is reversely rotated in response to a locking command of the door opening/closing controller such as the door handle, the second lock control knob 321 is engaged with the first link arm 212 to thereby shift the first traverse transmission lever 21 rightward to swing the knuckle head 5 out of standing in the locked state. When the second lock control shift lever 32 rotates in the forward direction in response to an unlocking instruction of an opening/closing door controller such as a door handle, the second unlocking shift arm 322 shifts the first link arm 212 to shift the first transverse transmission rod 21 to the left, and the knuckle head 5 swings back to the inside of the lock housing 1 in the unlocking state in the second opening portion. When the second lock control shift lever 32 rotates forward, the second lock control shift arm 321 on the second lock control shift lever 32 shifts the transmission shift arm 61 on the latch shift fork 6, so as to push the latch shift fork 6 to rotate, and further, the latch shift arm 62 of the latch shift fork 6 rotates to retract the latch 4, that is, the latch shift fork 6 executes an instruction of retracting the latch 4. Thus, when the user needs to unlock, the user can send an unlocking instruction to the second lock control shifting handle 32 by rotating the door handle, so that the coupler knuckle head 5 and the inclined tongue 4 can be simultaneously or successively retracted into the lock housing 1, and the lock is simple, convenient and quick.
According to the above scheme, in fact, the second lock control shifting arms (321, 322) are shifted to connect with the first transverse transmission rod 21, the second lock control shifting arms (321, 322) are combined into a single sheep horn shape, a pit or a groove capable of receiving the single sheep horn is formed in the first transverse transmission rod 21, and the single sheep horn stretches into the groove to be matched with two sides of the groove for transmission. Since this improvement is relatively simple, the relevant views are omitted.
As shown in fig. 1 and 7, in order to further enhance the anti-theft performance of the lock body 100, the first transverse transmission rod 21 is further provided with a latch bolt limiting protrusion 218, when the first transverse transmission rod 21 moves rightwards to drive the knuckle head 5 to swing out of the lock housing 1, the latch bolt limiting protrusion 218 also moves rightwards to the rear of the latch bolt 4 and prevents the latch bolt 4 from being retracted into the lock housing 1, whereas when the first transverse transmission rod 21 moves leftwards, the latch bolt limiting protrusion 218 also moves leftwards to the retraction stroke area of the latch bolt 4 so as to enable the latch bolt 4 to be freely retracted into the lock housing 1. In this way, the first transverse transmission rod 21 moving rightward can drive the coupler knuckle head 5 to swing out of the lock housing 1 simultaneously or successively, and the latch 4 is blocked by the latch limiting protrusion 218, so that a thief is prevented from pushing the latch 4 back into the lock housing 1 by inserting a sheet-shaped tool into a door slot, and the latch 4 has an anti-insertion property with a relatively simple structure.
Further, before the second lock control lever 32 starts to rotate in response to the unlocking command, a gap is reserved between the transmission lever 61 of the latch fork 6 and the second locking lever 321 of the second lock control lever 32. In this way, before or while the latch fork 6 starts to retract the latch 4, the second unlocking pulling arm 322 of the second lock control pulling handle 32 is combined with the first linkage arm 212 to push the first transverse transmission rod 21 to the left preferentially so that the latch limiting protrusion 218 moves out of the retraction stroke area of the latch 4 preferentially to the left, thus preventing the latch limiting protrusion 218 from being still in the retraction stroke area of the latch 4 and blocking the retraction of the latch 4 when the latch 4 is retracted, and further preventing the rotary unlocking of the second lock control pulling handle 32 due to the mutual interference and blocking of the latch limiting protrusion 218 and the latch 4. Wherein the clearance is preferably greater than the depth to which the tongue limit protrusion 218 extends in the left-right direction behind the tongue 4. The size of the gap is of course also dependent on the distance between the tongue limit projection 218 and the rear wall surface of the tongue 4 in the longitudinal direction. As shown in fig. 1 and 6, the gap may be small or even zero due to the large longitudinal spacing L. The latch 4 may be retracted and the latch stop protrusion 218 may be moved out of the rear of the latch 4, with the overall movement path therebetween being inclined.
Claims (10)
1. The lock body with the coupler knuckle comprises a lock shell, wherein a first opening part and a second opening part which are separated left and right are arranged on a front side panel of the lock shell; at least a latch bolt component and a hook bolt piece are arranged in the lock shell; the latch assembly comprises a latch, a latch rod body positioned behind the latch, and a latch return spring capable of driving the latch to return, wherein the latch can longitudinally move so as to extend out of the first opening or retract into the lock shell; the coupler knuckle piece comprises a coupler knuckle connecting part and a coupler knuckle head part in a bent hook shape, and the coupler knuckle connecting part is rotatably arranged in the lock shell so that the coupler knuckle head part can swing out of the lock shell or swing back into the lock shell in the second opening part; the lock is characterized in that a first transverse transmission rod, a second transverse transmission rod, a first lock control shifting handle and a bevel tongue shifting fork are also arranged in the lock shell; wherein:
the first transverse transmission rod is arranged in the lock shell in a transversely movable manner; the first transverse transmission rod is in transmission connection with the coupler knuckle connecting part and can drive the coupler knuckle connecting part to rotate, so that the coupler knuckle head can swing out of the second opening part to stand in a locking state when the first transverse transmission rod moves rightwards, and conversely, the coupler knuckle head can swing back to the inside of the lock shell to lie on the side in an unlocking state when the first transverse transmission rod moves leftwards;
The second transverse transmission rod is arranged in the lock shell in a transversely movable manner, a differential transmission structure is arranged between the second transverse transmission rod and the first transverse transmission rod, the second transverse transmission rod can be driven to move leftwards when the first transverse transmission rod moves leftwards through the differential transmission structure, and the second transverse transmission rod can still continue to move leftwards after the first transverse transmission rod stops moving leftwards;
the first lock control shifting handle is used for responding to an unlocking instruction or a locking instruction and comprises a first lock control shifting handle main body and a first lock control shifting arm extending from the first lock control shifting handle main body, and the first lock control shifting handle main body is rotatably arranged in the lock shell;
when the first lock control shifting handle rotates in response to an unlocking instruction, the first lock control shifting arm is shifted to the first transverse transmission rod to implement first-stage shifting unlocking transmission, and is shifted to the second transverse transmission rod to implement second-stage shifting unlocking transmission; the first-stage toggle unlocking transmission means that when the first lock control shifting handle performs first-round rotary unlocking, the first lock control shifting arm only toggles the first transverse transmission rod to move leftwards so that the coupler knuckle head can swing back to the inside of the lock shell to be in an unlocking state; the second-stage toggle unlocking transmission means that when the first lock control shifting handle continues to rotate to implement the second-round rotary unlocking on the basis of implementing the first-stage toggle unlocking transmission, the first lock control shifting arm only shifts the second transverse transmission rod to continue to move leftwards;
When the first lock control shifting handle rotates in response to a locking instruction, the first lock control shifting arm shifts the first transverse transmission rod to move rightwards so that the coupler knuckle head swings out to stand in a locking state, and the second transverse transmission rod moves rightwards along with the first transverse transmission rod;
the inclined tongue shifting fork is rotatably arranged in the lock shell and used for responding to a driving instruction of the second transverse transmission rod to retract the inclined tongue; the second transverse transmission rod responds to an unlocking command and moves leftwards in the second-stage poking unlocking transmission, and the second transverse transmission rod also pushes the transmission poking arm so that the tongue poking arm of the tongue poking fork can rotate to retract the tongue into the lock shell; when the latch fork does not obtain the instruction of retracting the latch, the latch is automatically reset and extends out of the lock shell under the drive of the latch reset spring, and the latch fork is reset.
2. A lock body with a knuckle according to claim 1, wherein the differential drive includes an elongated aperture provided in one of the drive bars along the direction of movement thereof and a raised arm provided in the other drive bar, the raised arm being inserted into the elongated aperture; when the first transverse transmission rod moves leftwards, the protruding arm is combined to one side frame of the strip-shaped hole, so that the second transverse transmission rod can be driven to move leftwards, and after the first transverse transmission rod stops moving leftwards, the strip-shaped hole can still provide a avoidance space for the second transverse transmission rod to continue moving leftwards.
3. A lock body with a knuckle according to claim 2, wherein when the first transverse drive rod moves to the right, the projecting arm engages the other side edge of the elongated aperture to drive the second transverse drive rod to move to the right as well.
4. The lock with knuckle of claim 1, wherein the differential drive includes a first rail push arm disposed on the first transverse drive link and a second rail left push arm disposed on the second transverse drive link, the second rail left push arm being located to the left of the first rail push arm and falling within the travel of the first rail push arm to the left; when the first transverse transmission rod moves leftwards, the first transverse rod pushing arm pushes the second transverse rod left pushing arm so as to drive the second transverse transmission rod to move leftwards, and after the first transverse transmission rod stops moving leftwards, the second transverse transmission rod can still continue to move leftwards.
5. The lock body with knuckle of claim 4, further comprising a second cross bar right push arm on the second transverse drive bar, the first cross bar push arm disposed between the second cross bar left push arm and the second cross bar right push arm; when the first transverse transmission rod moves rightwards, the first transverse rod pushing arm pushes the second transverse rod right pushing arm, so that the second transverse transmission rod can be driven to move rightwards.
6. A lock body with a knuckle according to claim 1, wherein the first transverse drive rod is further provided with a knuckle stop projection, when the first transverse drive rod moves rightwards to drive the knuckle head to swing out of the lock housing, the knuckle stop projection also moves rightwards to the rear of the knuckle and prevents the knuckle from being retracted into the lock housing, whereas when the first transverse drive rod moves leftwards, the knuckle stop projection also moves leftwards to the retraction stroke area of the knuckle to enable the knuckle to be freely retracted into the lock housing.
7. The lock body with a knuckle according to any one of claims 1 to 6, further comprising a second lock lever for being disposed left and right with the first lock lever in the lock housing in response to an unlock command or a lock up command, the second lock lever including a second lock lever body and a second lock lever arm extending from the second lock lever body, the second lock lever arm being adapted to toggle the first transverse transmission rod; when the second lock control shifting handle rotates in response to a locking instruction, the second lock control shifting arm can shift the first transverse transmission rod to move rightwards so as to enable the coupler knuckle head to swing out and stand in a locking state; when the second lock control shifting handle rotates in response to an unlocking instruction, the second lock control shifting arm can shift the first transverse transmission rod to move leftwards so that the coupler knuckle head swings back to the inside of the lock shell in an unlocking state in the second opening part.
8. The lock body with a knuckle according to claim 7, wherein the second lock-control toggle arm is in the shape of a pair of sheep horns including a second lock-up toggle arm and a second lock-release toggle arm, and the first transverse transmission rod is provided with a first linkage arm that can extend between the pair of sheep horns; or, the second lock control shifting arm is in an independent claw shape, and a pit or a groove capable of receiving the independent second lock control shifting arm is arranged on the first transverse transmission rod.
9. The lock with knuckle according to claim 7, wherein the second lock lever is located to the right of the knuckle fork, the second lock lever also pushing the knuckle fork to rotate to enable the knuckle fork to retract the knuckle when the second lock lever rotates to retract the knuckle head into the lock housing in response to an unlock command.
10. The lock with knuckle according to claim 9, wherein a gap is reserved between the latch fork and the second lock lever before the second lock lever begins to rotate in response to an unlock command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810434295.1A CN108487796B (en) | 2018-05-08 | 2018-05-08 | Lock body with coupler knuckle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810434295.1A CN108487796B (en) | 2018-05-08 | 2018-05-08 | Lock body with coupler knuckle |
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| CN108487796A CN108487796A (en) | 2018-09-04 |
| CN108487796B true CN108487796B (en) | 2023-09-29 |
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| CN108487796A (en) | 2018-09-04 |
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