CN113738194A - Manual-automatic integrated lock - Google Patents

Abstract

An automated manual latch comprising: the lock comprises a main lock tongue, a middle shifting handle, a lock cylinder shifting handle and a main driving disk, and is characterized in that the transmission between the middle shifting handle and the main driving disk is realized through a first differential mechanism, and the first differential mechanism comprises a section of first arc-shaped groove and a first bulge which can extend into the first arc-shaped groove, and the lock has the beneficial technical effects that: the first and the middle shifting handle can be driven by a driving device and can also be driven by a handle or a lock cylinder shifting handle; secondly, the middle shifting handle and the main bolt can keep a connection relationship all the time; thirdly, an avoiding space is formed between the main driving disc and the middle shifting handle, so that a driving device is not required to be driven when the middle shifting handle is reversed, and the handle or the lock cylinder shifting handle can be manually unlocked with small force; fourthly, the middle shifting handle and the main driving disc which are coaxially arranged have simple structures and stable transmission structures.

Description

Manual-automatic integrated lock

Technical Field

The invention relates to the technical field of locks, in particular to a lock which is provided with an electric driving device and a manual driving device and can realize automatic locking, unlocking and manual unlocking.

Background

The traditional lock is gradually replaced by an automatic electronic lock along with the technological progress, and most built-in driving devices of the automatic electronic locks on the market generally adopt motors with reduction boxes, and the motors can reduce the rotating speed of output ends and output larger torque after being adjusted by the reduction boxes, so that the lock tongue driven by the motors can be effectively extended or retracted at a reasonable speed. However, due to the reduction gearbox, it is difficult and laborious to drive the motor to rotate by an external manual member (such as a handle). In order to enable an automatic electronic lock to have both functions of electrically locking and unlocking and the capability of manually unlocking, the lock not only needs to have an automatic driving part and a manual driving part, but also needs to coordinate the actions of the two parts of mechanisms to realize manual driving. For example, the inventor of the present invention applies for a lock with an emergency unlocking structure in the earlier patent publication No. CN 109881988A, and the chinese patent invention with an emergency unlocking structure discloses a lock with automatic and manual functions, which includes a lock body, the lock body includes a lock housing, a dead bolt assembly for locking, a first toggle arm for driving the dead bolt assembly to realize locking and unlocking, and an electric mechanism for driving the first toggle arm to rotate, wherein the first toggle arm drives the dead bolt assembly to lock or unlock in a toggle manner; the lock also comprises a second shifting arm used for driving the dead bolt component to realize locking and unlocking and a manual driving mechanism used for driving the second shifting arm to rotate, the second shifting arm is rotatably arranged in the lock shell or is directly connected to the manual driving mechanism, when the manual driving mechanism is combined with the lock body, the second shifting arm can be driven by the manual driving mechanism to drive the dead bolt assembly to be locked or unlocked in a shifting mode, the electric mechanism drives the first shifting arm to complete locking or unlocking and further drives the first shifting arm to be separated from the dead bolt assembly and enables the first shifting arm to stay at a safe position, the first shifting arm stays at a safe position to enable the first shifting arm to avoid the square tongue component at the moment, the manual driving mechanism is used for locking or unlocking by utilizing the first shifting arm to stay at a safe position and driving the square bolt assembly to move through the second shifting arm. According to the technical scheme, the first toggle arm is mainly matched with the first recess on the side edge of the square bolt assembly to drive the square bolt assembly to be locked or unlocked, but obviously, the first toggle arm can be locked or unlocked only by rotating at least by a rotation angle of more than 360 degrees, and the speed of opening and closing the door is low due to the long rotation stroke.

Disclosure of Invention

In order to solve the problem of slow door opening and closing speed of the above-mentioned CN 109881988A patent application, the present invention firstly improves the toggle manner of the dead bolt assembly to increase the locking and unlocking speed, secondly further improves how to use the inner door handle or the lock core to unlock and lock the door in an emergency situation without conflict between the mechanisms, and further locks or unlocks the lock body including the oblique bolt. Therefore, the invention firstly provides a manual-automatic integrated lock, which comprises:

the main bolt is used for locking the door leaf;

the middle shifting handle is arranged on one side of the main bolt and is used for responding to the driving force of the handle to drive the main bolt to extend or retract;

the lock cylinder shifting handle is arranged on the other side of the main lock tongue and is used for responding to the driving force of the lock cylinder and driving the main lock tongue to extend or retract;

the main driving disc is coaxially arranged with the middle shifting handle and is used for driving the middle shifting handle to rotate clockwise or anticlockwise so as to drive the main lock tongue to extend out or retract;

the driving device is in meshed transmission connection with the main driving disc and is used for driving the main driving disc to rotate clockwise or anticlockwise according to instructions;

the mechanism is characterized in that transmission is realized between the middle shifting handle and the main driving disk through a first differential mechanism, the first differential mechanism comprises a section of first arc-shaped groove and a first bulge capable of extending into the first arc-shaped groove, the effective stroke defined by the first arc-shaped groove is larger than the width of the first bulge, the first arc-shaped groove and the first bulge are respectively arranged on the middle shifting handle and the main driving disk, so that the middle shifting handle and the main driving disk are driven to form transmission and have a first stroke difference of relative rotation through the matching between the first arc-shaped groove and the first bulge, the first stroke difference is used for providing an avoidance space for the main driving disk to rotate reversely relative to the middle shifting handle after the main driving disk drives the middle shifting handle to rotate to extend, and the avoidance space is automatically rotated reversely relative to the middle shifting handle when the main driving disk is driven by the driving device Thereafter, the main bolt can be manually retracted.

The main bolt is a component which is arranged in a shell of the lockset and can extend out or retract, and is commonly called a square bolt; the main lock tongue can partially extend out of the lock shell and be combined with the opposite lock box under the action of driving components such as the middle shifting handle and the lock cylinder shifting handle, so that the door leaf locking is realized.

The intermediate shifting handle is a member for transmitting the driving force of the main driving disk or the handle combined with the shaft to open or lock the door to drive the main bolt to extend or retract, that is, the intermediate shifting handle can be driven by the handle combined shaft to realize manual operation or driven by the driving device to realize automatic operation, and the intermediate shifting handle is an intermediate connecting member for connecting the main bolt with a manual driving mechanism and an electric mechanism.

The main driving disc is in meshing transmission connection with the output end of the driving device through a tooth structure arranged on the main driving disc, and the main driving disc is coaxially arranged with the middle shifting handle and can drive the middle shifting handle to rotate clockwise or anticlockwise. Since the output end of the driving device is generally a gear reduction mechanism, if the power is cut off and the intermediate handle or the main driving disk needs to be rotated, the intermediate handle or the main driving disk is reversely blocked by the driving device, the rotation resistance is very large, and the rotation is very difficult. Therefore, in order to solve the technical problem, the first stroke difference is arranged between the main driving disk and the middle shifting handle.

The driving device is connected with the controller mentioned below through signals, and drives the main driving disc to rotate clockwise or anticlockwise under the control of a signal instruction of the controller, so that the automatic control of the lock is realized. In one embodiment, the driving device comprises a motor, a reduction gear box and an output gear connected to the output end of the reduction gear box, and the output gear rotates and is in meshing transmission connection with the main driving disk; in another embodiment, the driving device comprises a motor, a reduction gear box and a screw rod connected to the output end of the reduction gear box, a nut is mounted on the screw rod, a rack is fixedly connected to the nut, and the rack can move back and forth and is in meshing transmission connection with the main driving disk.

The first differential mechanism comprises a first arc-shaped groove and a first protrusion, wherein the first arc-shaped groove and the first protrusion are respectively arranged on the middle shifting handle and the main driving disk; second, the first arc-shaped groove is arranged on the main driving disk, and the first bulge is arranged on the middle shifting handle. The first protrusion extends into the first arc-shaped groove, and the middle shifting handle can be driven by rotating the main driving disc.

Wherein the effective stroke defined by the first arc-shaped groove means that the extension length of the first arc-shaped groove is larger than the width of the first protrusion, the first protrusion can move in the first arc-shaped groove, and the maximum stroke of the first protrusion in the first arc-shaped groove relative to the first arc-shaped groove defines the effective stroke of the first protrusion in the first arc-shaped groove; because the main driving disk and the middle shifting handle are coaxially arranged and can rotate relatively, the effective stroke can be measured by the arc length or the rotating angle of the first bulge relative to the first arc-shaped groove.

The first stroke difference refers to a section of stroke of relative movement between the first protrusion and the first arc-shaped groove, and the first stroke difference may be smaller than or equal to an effective stroke defined by the first arc-shaped groove. The first intermediate shifting handle can be used as a driving part to rotate relative to the main driving disk, or the main driving disk can be used as a driving part to rotate relative to the intermediate shifting handle, and the main driving disk or the intermediate shifting handle can independently rotate the first stroke difference and is not dragged with the other component after rotation; secondly, the middle shifting handle or the main driving disk can rotate relatively to the other component after the first stroke difference is generated and rotate together.

The first stroke difference is used for providing an avoidance space for the main driving disc to rotate reversely relative to the middle shifting handle after the main driving disc drives the middle shifting handle to rotate to drive the main lock bolt to extend out, and the main lock bolt can be manually retracted after the main driving disc is driven by the driving device to rotate automatically reversely relative to the middle shifting handle to generate the avoidance space. This includes the following explanations: the automatic locking device has the advantages that the automatic locking function is achieved, the driving device drives the main driving disc to rotate, the main driving disc can be combined with the middle shifting handle to rotate together, and the rotating middle shifting handle drives the main lock tongue to extend out, so that automatic locking is achieved. And secondly, the automatic avoidance function is realized, and after the automatic locking action is completed, the main driving disk is driven by the driving device to rotate reversely so as to provide an avoidance space for the reverse rotation of the middle shifting handle. And thirdly, an automatic unlocking function, after the main driving disk rotates reversely to generate the avoidance space, the main driving disk can continue to rotate and then is combined with the middle shifting handle to rotate reversely together, so that the main lock tongue is withdrawn to realize automatic unlocking. Fourthly, manual unblock function main driving disc antiport appears dodge the space after, on the one hand the handle can also be responded to in the middle of dialling the handle thereby the drive of drive power realization antiport is driven the main spring bolt is retrieved and is realized manual unblock, on the other hand the lock courage is dialled the handle and also can be responded to the drive power of lock courage and drive the main spring bolt is retrieved and is realized manual unblock, no matter pass through when handle or lock courage are dialled the handle and are carried out manual unblock the handle is all needed to rotate in the middle of dialling, because the handle need not to be taken in the middle of dialling the main driving disc rotates (need not the backdrive drive arrangement), only needs to use less strength just can realize manual unblock. It needs to be noted that, in order to realize manual unlocking, the reverse rotation angle of the main driving disk only needs to satisfy the unlocking rotation angle which can enable the middle shifting handle to drive the main lock tongue to be recovered.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: firstly, the middle shifting handle can be driven by the driving device and can also be driven by the handle or the lock cylinder shifting handle, so that the lock has the functions of automatic driving and manual driving; secondly, the middle shifting handle and the main bolt can be always kept in a connection relationship, the automatic drive and the manual drive can be switched by the first differential mechanism arranged on the middle shifting handle and the main drive disk, the main bolt can be driven to extend out or retract only by rotating the first stroke difference at most, the maximum rotation angle of the main drive disk defined by the first stroke difference is not more than 180 degrees, compared with the traditional CN 109881988A patent, the rotation stroke is greatly shortened, and the operation time of the lock is favorably prolonged; thirdly, an avoidance space is formed between the main driving disc and the middle shifting handle, the driving device is not required to be driven when the middle shifting handle is reversely rotated, and the handle or the lock cylinder shifting handle realizes manual unlocking with smaller force, so that the convenience of unlocking the lock is favorably improved, and the unlocking can be realized through manual driving under emergency conditions; and fourthly, the middle shifting handle and the main driving disc which are coaxially arranged are simple in structure and stable in transmission structure, and the main lock tongue can be effectively driven to extend out or retract.

In order to allow the handle to be reset to an initial position after manual locking is completed, and the lock is maintained in a locked state after the handle is reset. The lock also comprises a handle combination shaft, wherein the handle combination shaft is coaxially arranged with the main driving disc and the middle shifting handle, and is used for transmitting the driving force of the handle to the middle shifting handle; the middle shifting handle and the handle combining shaft realize transmission through a second differential mechanism, the second differential mechanism comprises a section of second arc-shaped groove and a second bulge capable of extending into the second arc-shaped groove, the effective stroke defined by the second arc-shaped groove is larger than the width of the second bulge, the second arc-shaped groove and the second bulge are respectively arranged on the middle shifting handle and the handle combining shaft, so that transmission is formed between the middle shifting handle and the handle combining shaft through the matching of the second arc-shaped groove and the second bulge, and a second stroke difference of relative rotation is formed, and the second stroke difference is used for enabling the handle combining shaft to reset after the handle combining shaft drives the middle shifting handle to rotate to open the door.

The handle combination shaft is a transmission component for connecting the middle shifting handle and the handle, the handle combination shaft can be driven to rotate by rotating the handle so as to drive the middle shifting handle, but the first differential mechanism has the first stroke difference, and the middle shifting handle can be driven to rotate independently by the handle combination shaft. The resetting of the handle combination shaft means that the handle combination shaft can be rotated to the original initial position after being driven by the handle to rotate to the designated position. Wherein, since the handle is generally in a horizontal direction, the handle-combined shaft is also in a relatively stable horizontal position, i.e. the starting position, in use.

The second arc-shaped groove can be arranged on the middle shifting handle, and the second bulge is arranged on the handle combination shaft; or the second bulge can be arranged on the middle shifting handle, and the second arc-shaped groove is arranged on the handle combination shaft. The second stroke difference refers to a stroke of relative movement of the second protrusion in the second arc-shaped groove, and the second stroke difference can be smaller than or equal to an effective stroke defined by the second arc-shaped groove; but the second stroke difference is not less than the stroke of the middle shifting handle for driving the main bolt to extend or retract. Due to the second stroke difference, in the process that the main driving disc drives the middle shifting handle to drive the main bolt to extend or retract, the middle shifting handle can be free from driving the hand combining shaft, namely, the handle is always kept at the initial position in the process of locking and unlocking the automatic driving mechanism. Furthermore, a return spring may be disposed between the handle coupling shaft or the door handle and the lock housing, and the handle coupling shaft is allowed to be reversed back to the initial position after the unlocking operation is completed by the return spring. In a specific embodiment, the handle combining shaft and the handle are kept at the initial position under the action of the return spring, after the driving device completes the locking action and drives the main driving disc to rotate in the opposite direction independently, the handle is rotated to drive the handle combining shaft to rotate in the opposite direction, the handle combining shaft and the middle shifting handle are combined to form transmission connection and drive the middle shifting handle to rotate in the opposite direction so as to drive the main bolt to retract to realize door opening, the handle is released, and the handle combining shaft drives the handle to rotate in the opposite direction to return to the initial position under the action of the return spring. Due to the second stroke difference, the separation of the handle combination shaft and the middle poking handle during reverse rotation only brings the handle to rotate back to the initial position, so that the lock is kept in the locked state.

The lock comprises a main lock tongue locking door leaf, a lock core and a lock core, wherein the lock core is provided with a lock core handle, the lock core handle is provided with a lock core handle, and the lock core handle is provided with a lock core handle. The oblique tongue is a component capable of stretching and turning, and is used for temporarily locking a door (namely a windproof door) when the turned oblique tongue extends outwards, and the oblique tongue can be turned and retracted when a door leaf is pushed and pulled so as to open the door; the spring support further comprises a latch bolt return spring, and the latch bolt is kept extending outwards through the latch bolt return spring. The plug-in is a component which is combined with the latch bolt to limit the flip of the latch bolt, when the latch bolt is limited to rotate, the latch bolt can only stretch and retract like a common latch bolt, if the latch bolt is combined with the plug-in when the door leaf is closed, the door leaf is in a locked state and cannot be pushed away directly, and at the moment, a double-locking structure is formed by matching the main lock bolt. The main driving disc or the lock cylinder shifting handle can drive the plug-in, which means that the limitation of the rotation of the latch bolt can be removed together with the retraction of the main lock bolt through automatic control or manual control, so that the door can be opened, the function of temporarily locking the door by the door leaf is increased, and the safety of the lockset is greatly improved.

The technical scheme is that the plug-in unit comprises a plug-in unit, a plug-in unit and a latch bolt, wherein the plug-in unit is provided with the latch bolt, and the latch bolt is also required to synchronously remove the rotation limitation of the latch bolt when the plug-in unit is unlocked by the handle; the plug-in unit reset spring is used for driving the plug-in unit to reset to a position inserted on the oblique tongue. Therefore, when the handle is rotated to manually control and withdraw the main lock tongue, the handle combination shaft can drive the latch bolt shifting fork to push the plug-in unit to synchronously remove the limitation of the rotation of the latch bolt, and the reliability of manual unlocking is guaranteed.

Because the required rotation angle for withdrawing the main lock tongue and the required rotation angle for releasing the plug-in restriction by the latch bolt shifting fork are possibly different, in addition, the lock cylinder shifting handle can also release the restriction of the latch bolt rotation by means of the transmission of the latch bolt shifting fork, a further technical scheme can also be that the transmission between the latch bolt shifting fork and the handle combined shaft is realized by a third differential mechanism, the third differential mechanism comprises a section of third arc-shaped groove and a third bulge which can extend into the third arc-shaped groove, the effective stroke defined by the third arc-shaped groove is larger than the width of the third bulge, the third arc-shaped groove and the third bulge are respectively configured on the latch bolt shifting fork and the handle combined shaft, so that the transmission between the latch bolt shifting fork and the handle combined shaft is formed and the third stroke difference of the relative rotation is formed by the cooperation between the third arc-shaped groove and the third bulge, the third stroke difference is used for enabling the latch bolt shifting fork to independently rotate relative to the handle combination shaft when the handle combination shaft does not rotate and the latch bolt shifting fork is pushed to rotate by the lock cylinder shifting handle, so that the plug-in unit is further pushed. The third arc-shaped groove and the third protrusion are respectively arranged on the latch bolt shifting fork and the handle combining shaft, namely, the third arc-shaped groove is arranged on the latch bolt shifting fork, the third protrusion is arranged on the handle combining shaft, and the third arc-shaped groove is arranged on the handle combining shaft, and the third protrusion is arranged on the latch bolt shifting fork. And through the third travel difference between latch bolt shift fork and the handle combination axle, can enough let lock courage dial the handle independently promote latch bolt shift fork rotates in order to relieve the restriction of plug-in components, can pass through again the handle combination axle drives after rotating certain stroke latch bolt shift fork in order to reach and withdraw simultaneously main spring bolt and relieve the restriction of plug-in components to the latch bolt, this has satisfied and has all can unblank using different manual mechanism, improves greatly the use reliability of tool to lock.

In order to better coordinate the automatic control mechanism of the lock, the lock further comprises a controller, wherein the controller is used for driving the driving device to act and controlling the main driving disc to reset to a default normal position by means of the first stroke difference after the main bolt extends out; the default normal position is a position where the main driving disc is located after the main lock tongue extends out and the middle shifting handle can independently move reversely by a stroke which can enable the main lock tongue to retract. The controller can control the driving device to move forwards or backwards, and the driving device and the main driving disk can be controlled to perform appointed movement through the controller, so that the reliability of locking or unlocking the lockset is guaranteed.

In order to enable the controller to control the rotation stroke of the main driving disc, the controller may further be matched with a limit sensor in signal connection therewith to achieve automatic locking, unlocking and enabling the main driving disc to rotate to a specified position. The lock further comprises a locking signal sensor, wherein the locking signal sensor responds to a signal that the main bolt is extended and locked and transmits the signal that the main bolt is extended and locked to the controller, and the controller is used for controlling the main driving disc to return to a default normal position by means of the first stroke difference according to the signal that the main bolt is extended and locked. The lock further comprises a normal state signal sensor, the normal state signal sensor responds to a signal that the main driving disc is reset to a default normal state position and transmits the signal that the main driving disc is reset to the default normal state position to the controller, and the controller is used for controlling the main driving disc to stop according to the signal that the main driving disc is reset to the default normal state position. The lock further comprises a door opening signal sensor, the door opening signal sensor responds to a door leaf opening signal and transmits the door leaf opening signal to the controller, and the controller is used for controlling the driving device to drive the main driving disc to reset to a default normal position according to the door leaf opening signal.

Due to the characteristics and the advantages, the invention can be applied to the manual-automatic integrated lock.

Drawings

Fig. 1 is a schematic view of an exploded structure of a door leaf to which the lock is applied;

FIG. 2 is an exploded view of the lock;

FIG. 3 is a front view of the lock;

fig. 4 is a schematic structural view of the main bolt in an extended state;

fig. 5 is a schematic structural view of the main bolt in a retracted state;

FIG. 6 is a schematic view of the main drive disk rotated to a normal position;

fig. 7 is a schematic structural view of the intermediate shifting handle driving the main bolt to retract;

FIG. 8 is an exploded view of the intermediate lever, main drive disk and handle engagement shaft;

FIG. 9 is a schematic axial view of the middle handle;

FIG. 10 is a schematic view showing a structure of the handle coupling shaft in a side direction of the shaft;

fig. 11 is a schematic view of a combined structure of the middle shifting handle and the main driving disk, which shows a state when the main driving disk drives the middle shifting handle to rotate counterclockwise to realize locking;

fig. 12 is a schematic view of a combined structure of the middle handle and the main driving disk, which shows a state when the main driving disk alone rotates clockwise by the first stroke difference;

FIG. 13 is a schematic view of the combination structure of the middle handle and the handle joint shaft;

FIG. 14 is a schematic view of the combination of the handle coupling shaft and the latch fork;

fig. 15 is a control flow chart of the lock.

Detailed Description

The manual-automatic integrated lock is provided with an automatic driving mechanism and a manual driving mechanism, and in order to further improve the reliability and smoothness of switching between automatic operation and manual operation and ensure the convenience of using the lock, the structure of the manual-automatic integrated lock applying the technical scheme of the invention is further described with reference to the attached drawings. Various implementation details disclosed below may be selectively applied or combined in one embodiment even if not directly related or synergistic in functional terms, except where expressly specified to belong to equivalent or alternative embodiments.

The invention provides a manual-automatic integrated lock, as shown in fig. 1 and 2, comprising an outer panel 17, an inner panel 18 and a lock body 19 which are installed on a door leaf 16, wherein the lock body 19 is installed in the door leaf 16 through screws, the inner panel 18 is provided with a power supply box 181, a controller 15 and a door handle 14, the outer panel 17 is provided with an instruction receiver (such as a touch panel 171 and/or a fingerprint scanner 172) which is in signal connection with the controller 15, the instruction receiver is used for receiving an instruction signal of a user and transmitting the instruction signal to the controller 15, and the instruction signal of the user comprises a door opening instruction signal and can also comprise a locking instruction signal. The lock body comprises a shell 1, a main bolt 2 and a lock cylinder shifting handle 8, wherein the shell 1 comprises a front shell 11, a rear shell 12 and a side shell 13 connected between the front shell 11 and the rear shell 12, the front shell 11, the rear shell 12 and the side shell 13 jointly define a shell cavity 10, a main bolt hole is formed in the side shell 13, the main bolt 2 is arranged in the shell 11 and can extend out or retract, and at least part of the main bolt 2 can extend out of the shell 11 through the main bolt hole for locking a door leaf. And the lock cylinder shifting handle 8 is used for driving the main bolt 2 to extend out or retract into the shell cavity 10 by rotating the lock cylinder through a key.

In order to realize automatic control of the main bolt 2 to move back and forth, the lock further includes a driving device 3, the driving device 3 is in signal connection with the controller 15, in this embodiment, the driving device 3 is disposed in the housing cavity 10 and fixed on the housing 1, the driving device 3 includes a motor 31, a reduction gear box 32 and an output gear 33 connected to an output end of the reduction gear box 32, the driving device 3 is a power source for the lock to realize automatic locking or unlocking, a high-speed output of the motor 31 is reduced by the reduction gear box 32 and then drives the output gear 33 to output at a lower speed for stably driving the main bolt 2 to move, and the controller 15 can control the motor 31 to rotate forward or backward so as to realize driving the main bolt 2 to extend or retract. As an equivalent embodiment, the output mode of the driving device 3 may be reciprocating output of back and forth movement in addition to rotational output, the output end of the reduction gear box 32 of the driving device 3 is connected to a screw, a nut is mounted on the screw, a rack is fixedly connected to the nut, and the driving device 3 drives the rack to reciprocate back and forth by driving the screw to rotate forward or backward so as to drive the main bolt 2 to extend or retract. And the door handle 14 is used for manually driving the main bolt 2 to retract so as to realize unlocking.

To further explain how the driving device 3 drives the main bolt 2 to extend, lock, retract and unlock, as shown in fig. 2 to 9, the lock further includes a main driving disc 4 in meshing transmission connection with the output gear 33 of the driving device 3, and the main driving disc 4 can rotate clockwise or counterclockwise (the angle of the rotation track is about 60 °) under the driving of the driving device 3 and is adapted to the rotation angle of the door handle 14. The middle shifting handle 5 is arranged on one side of the main bolt 2, the middle shifting handle 5 and the main driving disk 4 are coaxially arranged, a first differential mechanism is arranged on the middle shifting handle 5 and the main driving disk 4, transmission is achieved between the middle shifting handle 5 and the main driving disk 4 through the first differential mechanism, the first differential mechanism comprises a section of first arc-shaped groove 41 and a first protrusion 51 which can extend into the first arc-shaped groove 41, in the embodiment, the first arc-shaped groove 41 is arranged on the main driving disk 4, and the first protrusion 51 is arranged on the middle shifting handle 5. As an equivalent embodiment, the first arc-shaped slot 41 is arranged on the middle shifting handle 5, and the first protrusion 51 is arranged on the main driving disk 4. The outer end of the middle shifting handle 5 is provided with a section of dentate structure, the shell cavity 10 is also provided with a linkage shifting block 21, the linkage shifting block 21 is rotatably arranged between the middle shifting handle 5 and the main bolt 2, one end of the linkage shifting block 21 is also provided with a section of dentate structure and is meshed with the middle shifting handle 5, and the other end of the linkage shifting block 21 is connected with the main bolt 2 and can push the main bolt 2 to extend and retract. In this embodiment, when the driving device 3 drives the main driving disc 4 to rotate clockwise, the main driving disc 4 can drive the middle shifting handle 5 to rotate clockwise, and further drive the main bolt 2 to extend out of the housing 11 of the lock through the linkage shifting block 21 to realize locking; on the contrary, when the driving device 3 drives the main driving disc 4 to rotate counterclockwise, the main driving disc 4 can drive the middle shifting handle 5 to rotate counterclockwise, and then the linkage shifting block 21 drives the main bolt 2 to retract into the housing cavity 10 of the lock to realize unlocking.

The lock can be manually unlocked through the door handle 14 or the lock cylinder handle 8, as shown in fig. 2 to 10, the lock further includes a handle coupling shaft 6, the handle coupling shaft 6 is coaxially installed with the main drive disk 4 and the middle handle 5, and the handle coupling shaft 6 is used for transmitting the driving force of the door handle 14 to the middle handle 5. In this way, the handle combination shaft 6 and the middle dial 5 can be driven to rotate counterclockwise by rotating the door handle 14 counterclockwise, and the main bolt 2 is driven to return to the housing cavity 10 of the lock through the linkage dial block 21, so as to realize unlocking. The lock core shifting handle 8 is arranged on the other side of the main lock bolt 2, a recess 211 is formed in the linkage shifting block 21, and the lock core shifting handle 8 can extend into the recess 211 and drive the linkage shifting block 21 to rotate so as to drive the main lock bolt 2 to move back and forth.

In order to improve the locking and unlocking speed of the lockset and ensure that an automatic driving mechanism and a manual driving mechanism can be smoothly implemented. As shown in fig. 2 to 12, the first arc-shaped groove 41 of the first differential mechanism is disposed on the main driving disk 4, the first protrusion 51 is disposed on the middle shifting handle 5, an effective stroke defined by the first arc-shaped groove 41 is greater than a width of the first protrusion 51, and the first arc-shaped groove 41 and the first protrusion 51 cooperate with each other to enable the middle shifting handle 5 and the main driving disk 4 to transmit and have a first stroke difference of relative rotation. The first stroke difference is a stroke of relative movement of the first protrusion 51 in the first arc-shaped groove 41. The first stroke difference is used for providing an avoidance space for the main driving disk 4 to rotate reversely relative to the middle shifting handle 5 after the main driving disk 4 drives the main bolt 2 to extend out with the middle shifting handle 5 rotating, and the main bolt 2 can be manually retracted after the main driving disk 4 is driven by the driving device 3 to rotate automatically reversely relative to the middle shifting handle 5 to generate the avoidance space. The first stroke difference may not be completely consistent with the effective stroke defined by the first arc-shaped groove 41, the reverse rotation angle of the main driving disc 4 only needs to satisfy the unlocking rotation angle which enables the middle shifting handle 5 to drive the main bolt 2 to recover, and the first stroke difference is not greater than the effective stroke defined by the first arc-shaped groove 41; meanwhile, in order to realize unlocking, the first stroke difference is required to be not smaller than the unlocking rotation angle of the middle shifting handle 5. It can be seen that the intermediate lever 5 can be driven by both the driving device 3 and the door handle 14 or the cylinder lever 8, which allows the lock to have both automatic and manual driving functions; secondly, the middle shifting handle 5 and the main bolt 2 can always keep a connection relationship, and the automatic driving and manual driving can drive the main bolt 2 to extend or retract to realize locking or unlocking only by rotating the first stroke difference at most through the first differential mechanism arranged on the middle shifting handle 5 and the main driving disk 4, so that the rotation stroke is greatly shortened compared with the prior patent CN 109881988A, and the response time of the lock is favorably prolonged.

The door handle 14 is generally required to be reset to an initial position (horizontal position) after manual locking is completed, and the lockset is required to be maintained in the locked state after the door handle 14 is reset. As shown in fig. 2 and 13, the middle shifting handle 5 and the handle coupling shaft 6 are driven by a second differential mechanism, the second differential mechanism includes a second arc-shaped groove 52 and a second protrusion 61 capable of extending into the second arc-shaped groove 52, the second arc-shaped groove 52 and the second protrusion 61 are respectively disposed on the middle shifting handle 5 and the handle coupling shaft 6, in this embodiment, the second arc-shaped groove 52 is disposed on the middle shifting handle 5, and the second protrusion 61 is disposed on the handle coupling shaft 6. The effective stroke defined by the second arc-shaped slot 52 is greater than the width of the second protrusion 61, so that the transmission between the middle shifting handle 5 and the handle combining shaft 6 is formed and a second stroke difference of relative rotation is formed through the cooperation between the second arc-shaped slot 52 and the second protrusion 61. The handle coupling shaft 6 is a transmission member for connecting the middle handle 5 and the door handle 14, but the handle coupling shaft 6 can drive the middle handle 5 to rotate independently because the first differential mechanism has the first stroke difference. Further, a return spring 63 may be further disposed between the handle combining shaft 6 and the housing 1 of the lock, and the handle combining shaft 6 and the door handle 14 are automatically rotated back to be reset after the unlocking action is completed through the return spring 63. In this embodiment, the handle coupling shaft 6 and the door handle 14 are kept at the initial position under the action of the return spring 63, after the driving device 3 completes the locking action and drives the main driving disc 4 to independently rotate in the opposite direction, the door handle 14 is rotated to drive the handle coupling shaft 6 to rotate in the opposite direction, the handle coupling shaft 6 and the middle toggle lever 5 are combined to form a transmission connection and drive the middle toggle lever 5 to rotate in the opposite direction so as to drive the main bolt 2 to retract to open the door, the door handle 14 is released, and the handle coupling shaft 6 drives the door handle 14 to rotate in the opposite direction to return to the initial position under the action of the return spring 63. Due to the second stroke difference, the separation of the handle coupling shaft 6 from the middle paddle 5 during reverse rotation only rotates the door handle 14 back to the starting position, so that the lock remains locked.

The lock can be provided with a latch mechanism as a secondary locking mechanism besides the main bolt 2 for locking the door leaf, and further has the technical scheme that as shown in fig. 2-8, the lock further comprises a reversible latch 71 and an insert 72 rotatably arranged on the side edge of the latch 71, the insert 72 is in transmission connection with the main driving disc 4 and the lock liner toggle handle 8, and the insert 72 is driven by the main driving disc 4 or the lock liner toggle handle 8 to act so as to further release the limitation on the rotation of the latch 71. The latch tongue 71 is a member capable of performing telescopic and turning activities, the latch tongue 71 is used for temporarily locking a door (namely, a windproof door) when extending outwards, the latch tongue 71 can be turned and retracted to open the door by pushing and pulling the door leaf, and the latch tongue 71 further comprises a latch tongue return spring 73, and the latch tongue 71 is kept extending outwards by the latch tongue return spring 73. Grooves are further formed in two sides of the latch tongue 71, the plug-in piece 72 is a member for limiting rotation of the latch tongue 71, when the plug-in piece 72 is inserted into the groove, the latch tongue 71 is limited to be incapable of being turned over and only capable of performing telescopic movement, at this time, the function of the plug-in piece is the same as that of a common latch tongue, the door leaf 16 cannot be opened by pushing and pulling, and the plug-in piece 72 needs to be driven to leave the groove of the latch tongue 71 through the main driving disc 4, the lock cylinder handle 8 or the door handle 14 to open the door.

The following describes in detail how the drive of the insert 72 is realized by the main drive disk 4, the cylinder handle 8 or the door handle 14:

the insert 72 is driven by the driving disk 4, as shown in fig. 2, 4 and 8, a driven disk 42 in meshing transmission with the driving disk 4 is further arranged between the driving disk 4 and the insert 72, a poking cylinder 43 is arranged on the driven disk 42, when the driving disk 4 rotates clockwise to drive the driven disk 42 to rotate counterclockwise for unlocking, the poking cylinder 43 on the driven disk 42 can simultaneously poke the insert 72 to enable the insert 72 to leave the groove of the latch tongue 71, so that the limit of the latch tongue 71 is also released while the main lock tongue 2 is retracted to realize simultaneous unlocking.

Through the lock core is dialled the handle 8 drive plug-in components 72, as shown in fig. 2 and 8, still be provided with intermediate connecting rod 81 between lock core dialling handle 8 and plug-in components 72, when lock core dialling handle 8 drives main spring bolt 2 withdraws, lock core dialling handle 8 can also push simultaneously intermediate connecting rod 81 in order to promote plug-in components 72 leave the recess of oblique tongue 71, has also relieved when letting main spring bolt 2 withdraw like this the restriction of oblique tongue 71 realizes unblock simultaneously.

When the door is opened by the door handle 14, the rotation restriction of the latch bolt 71 needs to be synchronously released so as to open the door, as shown in fig. 1, 2, 5 and 8, the door further comprises a latch bolt shift fork 9, the latch bolt shift fork 9 is coaxially installed with the handle coupling shaft 6, the main drive disc 4 and the intermediate shift lever 5, and the latch bolt shift fork 9 is used for transmitting the driving force of the handle coupling shaft 6 to the insert 72 so as to further restrict the rotation of the latch bolt 71; and a plug return spring 91, wherein the plug return spring 91 is used for driving the plug 72 to return to a position of being plugged on the oblique tongue 71. In this way, the handle coupling shaft 6 can drive the latch fork 9 to push the plug 72 to synchronously release the restriction of the rotation of the latch 71 while the door handle 14 is rotated to manually control the retraction of the main latch 2. Furthermore, the middle connecting rod 81 can be arranged between the latch bolt shifting fork 9 and the lock cylinder shifting handle 8, and the lock cylinder shifting handle 8 pushes the latch bolt shifting fork 9 to rotate by pushing the middle connecting rod 81, so that the limitation of the latch bolt 71 is removed.

Generally, the rotation angle required for withdrawing the main lock tongue 2 is different from the rotation angle required for releasing the limitation of the plug-in piece 72 by the latch bolt shifting fork 9, in addition, the lock cylinder shifting handle 8 can also further release the rotation limitation of the latch bolt 71 by the transmission of the latch bolt shifting fork 9, as shown in fig. 2 and 4-14, the transmission between the latch bolt shifting fork 9 and the handle combining shaft 6 is realized by a third differential mechanism, the third differential mechanism comprises a section of third arc-shaped groove 62 and a third bulge 92 capable of extending into the third arc-shaped groove 62, the stroke defined by the third arc-shaped groove 62 is larger than the width of the third bulge 92, and the third arc-shaped groove 62 and the third bulge 92 are respectively configured on the latch bolt 9 and the handle combining shaft 6, so that the latch bolt 9, the shifting fork are not only allowed by the matching between the third arc-shaped groove 62 and the third bulge 92, The handle combining shaft 6 forms transmission and has a third stroke difference of relative rotation, the third stroke difference is used for when the handle combining shaft 6 does not rotate, the latch bolt shifting fork 9 can independently rotate relative to the handle combining shaft 6 when the latch bolt shifting fork 9 is pushed to rotate by the lock cylinder shifting handle 8, so as to further push the insert 72. In this embodiment, the third arc-shaped slot 62 is provided on the handle coupling shaft 6 and the third projection 92 is provided on the latch yoke 9. And through the third stroke difference between the latch bolt shifting fork 9 and the handle combination shaft 6, the latch bolt shifting fork 9 can be pushed to independently rotate through the lock cylinder shifting handle 8 so as to remove the limitation of the plug-in piece 72, and the handle combination shaft 6 can drive the latch bolt shifting fork 9 after rotating a certain stroke so as to realize the simultaneous recovery of the main lock bolt 2 and the removal of the limitation of the plug-in piece 72 by adjusting the relative position of the handle combination shaft 6 and the latch bolt shifting fork 9.

As shown in fig. 6, the controller 15 is configured to drive the driving device 3 to operate, and control the main driving disc 4 to return to a default normal position by means of the first stroke difference after the main bolt 2 extends; the default normal position is a position where the main driving disc 4 is located after the main bolt 2 is extended, and the middle shifting handle 5 can independently move reversely by a stroke that the main bolt 2 can be retracted. The controller 15 can control the driving device 3 to move forward or backward so as to drive the main driving disk 4 to rotate forward or backward, and the controller 15 can control the driving device 3 to perform a specified moving action, which is beneficial to ensuring the reliability and stability of transmission.

In order to allow the controller 15 to accurately control the rotation stroke and the rotation position of the main driving disk 4, the controller 15 may further cooperate with a limit sensor in signal connection therewith to achieve automatic locking and unlocking and control the main driving disk 4 to rotate to a specified position. As shown in fig. 15, which is a control flowchart of the lock, the lock further includes a door closing signal sensor a1, after the door is closed, the door closing signal sensor a1 responds to a door closing in-place signal and transmits the door closing in-place signal to the controller 15, and the controller 15 is configured to drive the driving device 3 to move according to the door closing in-place signal, so as to extend and lock the main bolt 2. Further, the lock further comprises a locking signal sensor a2, the locking signal sensor a2 responds to the signal that the main bolt 2 is extended and locked and transmits the signal that the main bolt 2 is extended and locked to the controller 15, and the controller 15 is configured to control the main driving disc 4 to return to the default normal position by means of the first stroke difference according to the signal that the main bolt 2 is extended and locked. Further, the lock further comprises a normal state signal sensor A3, the normal state signal sensor A3 responds to a signal that the main driving disk 4 is reset to a default normal state position and transmits the signal that the main driving disk 4 is reset to the default normal state position to the controller 15, and the controller 15 is used for controlling the main driving disk 4 to stop according to the signal that the main driving disk 4 is reset to the default normal state position. Further, the instruction receiver can transmit a door opening instruction signal of a user to the controller 15, and the controller 15 is configured to control the driving device 3 to operate according to the door opening instruction signal of the user so as to enable the main bolt 2 to retract to the right position. Further, the lock further comprises a door opening signal sensor a4, the door opening signal sensor a4 responds to the signal that the door leaf 16 is opened and transmits the signal that the door leaf 16 is opened to the controller 15, and the controller 15 is configured to drive the door closing mechanism according to the signal that the door leaf 16 is opened, return to a default normal position by controlling the main driving disc 4 by means of the first stroke difference and wait for entering the next door closing action.

Claims (8)

1. An automated manual latch comprising:

the main bolt is used for locking the door leaf;

the middle shifting handle is arranged on one side of the main bolt and is used for responding to the driving force of the handle to drive the main bolt to extend or retract;

the lock cylinder shifting handle is arranged on the other side of the main lock tongue and is used for responding to the driving force of the lock cylinder and driving the main lock tongue to extend or retract;

the main driving disc is coaxially arranged with the middle shifting handle and is used for driving the middle shifting handle to rotate clockwise or anticlockwise so as to drive the main lock tongue to extend out or retract;

the driving device is in meshed transmission connection with the main driving disc and is used for driving the main driving disc to rotate clockwise or anticlockwise according to instructions;

the mechanism is characterized in that transmission is realized between the middle shifting handle and the main driving disk through a first differential mechanism, the first differential mechanism comprises a section of first arc-shaped groove and a first bulge capable of extending into the first arc-shaped groove, the effective stroke defined by the first arc-shaped groove is larger than the width of the first bulge, the first arc-shaped groove and the first bulge are respectively arranged on the middle shifting handle and the main driving disk, so that the middle shifting handle and the main driving disk are driven to form transmission and have a first stroke difference of relative rotation through the matching between the first arc-shaped groove and the first bulge, the first stroke difference is used for providing an avoidance space for the main driving disk to rotate reversely relative to the middle shifting handle after the main driving disk drives the middle shifting handle to rotate to extend, and the avoidance space is automatically rotated reversely relative to the middle shifting handle when the main driving disk is driven by the driving device Thereafter, the main bolt can be manually retracted.

2. The automated manual lock of claim 1, further comprising a handle coupling shaft coaxially installed with said main driving disk and said intermediate lever, said handle coupling shaft for transmitting a driving force of a handle to said intermediate lever; the middle shifting handle and the handle combining shaft realize transmission through a second differential mechanism, the second differential mechanism comprises a section of second arc-shaped groove and a second bulge capable of extending into the second arc-shaped groove, the effective stroke defined by the second arc-shaped groove is larger than the width of the second bulge, the second arc-shaped groove and the second bulge are respectively arranged on the middle shifting handle and the handle combining shaft, so that transmission is formed between the middle shifting handle and the handle combining shaft through the matching of the second arc-shaped groove and the second bulge, and a second stroke difference of relative rotation is formed, and the second stroke difference is used for enabling the handle combining shaft to reset after the handle combining shaft drives the middle shifting handle to rotate to open the door.

3. The manual-automatic integrated lock according to claim 2, further comprising a reversible latch bolt and an insert rotatably disposed at a side edge of the latch bolt, wherein the insert is in transmission connection with the main driving disc and the cylinder handle, and the insert is driven by the main driving disc or the cylinder handle to act so as to further release the restriction on the rotation of the latch bolt.

4. The manual-automatic integrated lock according to claim 3, further comprising a latch fork coaxially installed with the handle coupling shaft, the main driving disk and the intermediate lever, the latch fork being configured to transmit a driving force of the handle coupling shaft to the insert so as to further release the rotation restriction of the latch; the plug-in unit reset spring is used for driving the plug-in unit to reset to a position inserted on the oblique tongue.

5. The automatic integrated lock according to claim 4, characterized in that the transmission between the latch fork and the handle combined shaft is realized by a third differential mechanism, the third differential mechanism comprises a section of third arc-shaped groove and a third bulge which can extend into the third arc-shaped groove, the effective stroke defined by the third arc-shaped groove is larger than the width of the third bulge, the third arc-shaped groove and the third bulge are respectively arranged on the latch bolt shifting fork and the handle combining shaft, so that the latch bolt shifting fork and the handle combining shaft can form transmission and have a third stroke difference of relative rotation through the matching between the third arc-shaped groove and the third bulge, the third stroke difference is used for ensuring that when the handle combination shaft does not rotate and the latch bolt shifting fork is pushed by the lock cylinder shifting handle to rotate, the latch fork is independently rotatable relative to the handle engagement shaft to further advance the insert.

6. The automatic-manual integrated lock according to any one of claims 1-5, further comprising a controller, wherein the controller is configured to drive the driving device to operate, and control the main driving disc to return to a default normal position by means of the first stroke difference after the main bolt extends; the default normal position is a position where the main driving disc is located after the main lock tongue extends out and the middle shifting handle can independently move reversely by a stroke which can enable the main lock tongue to retract.

7. The lock as claimed in claim 6, further comprising a door-closing signal sensor, wherein the door-closing signal sensor responds to a door-closing in-place signal and transmits the door-closing in-place signal to the controller, and the controller is configured to drive the driving device to move to allow the main bolt to extend and lock according to the door-closing in-place signal.

8. The lock of claim 6, further comprising a locking signal sensor, wherein the locking signal sensor responds to the signal of the main bolt being locked and transmits the signal of the main bolt being locked and extended to the controller, and the controller is configured to reset the main drive disc to a default normal position by the first stroke difference according to the signal of the main bolt being locked and extended.

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