CN110528966B

CN110528966B - Lock set

Info

Publication number: CN110528966B
Application number: CN201910867247.6A
Authority: CN
Inventors: 龙胜雄; 王金奎
Original assignee: Shenzhen Romans Smart Home Co ltd
Current assignee: Shenzhen Romans Smart Home Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2024-09-06
Anticipated expiration: 2039-09-12
Also published as: CN110528966A

Abstract

The invention relates to the field of door locks, in particular to a lockset which comprises an inner lock body, an outer lock body and a driving rod, wherein the inner lock body comprises an inner handle, an inner rotary disc, an inner clutch device and an inner rod seat fixedly connected with the inner rotary disc, the inner handle is connected with the inner rotary disc and can drive the inner rotary disc to rotate along an unlocking or locking direction, and the inner clutch device can lock or unlock the inner rotary disc to rotate along the unlocking direction. The outer lock body comprises an outer handle, an outer rotary table and an outer clutch device, wherein the outer handle is connected with the outer rotary table and can drive the outer rotary table to rotate along the unlocking or locking direction, an outer rod seat and a rod sleeve which is rotationally sleeved with the outer rod seat are fixedly arranged on the outer rotary table, the outer clutch device can lock or unlock the rotation of the rod sleeve and the outer rod seat, and the inner rod seat and the rod sleeve are used for connecting the same driving rod. The double clutch of the lockset is formed by arranging the inner clutch device and the outer clutch device, illegal molecules can be prevented from unlocking through knocking the outer shell, unlocking through clamping pieces or unlocking through violence, and the safety performance of the lockset is improved.

Description

Lock set

Technical Field

The invention relates to the field of door locks, in particular to a lockset.

Background

The general door lock is provided with an outdoor panel, an indoor panel, an inner lock body and an outer lock body, wherein the indoor panel is provided with an indoor handle, and the indoor handle is provided with an inner handle rotating shaft; an outdoor handle is arranged on the outdoor panel, and an outer handle rotating shaft is arranged on the outdoor handle. When an illegal person knocks the outdoor panel to cause the outdoor panel to be damaged or fall off, the driving rod connecting the indoor handle and the outdoor handle can be exposed, and the driving rod is clamped outdoors to rotate by using tools such as clamping pieces, steel sheets and inserting pieces, so that the driving rod drives the lock tongue to move, and the unlocking purpose is achieved. Knocking the outdoor panel can also cause the clutch pin of the outer lock body to withdraw from the clutch hole due to vibration, so that the clutch is unlocked, and an illegal person can rotate the outdoor handle to unlock. For locks with clutch devices only on the inner lock body, when the outdoor handle is twisted hard, the driving rod may rotate to cause the lock tongue to move.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a lockset aiming at the defects in the prior art, and aims to solve the problems that the prior lockset is easy to unlock by knocking, illegal unlocking by adopting an inserting piece type tool or illegal unlocking by violently twisting a handle.

The technical scheme adopted for solving the technical problems is as follows: the lock comprises an inner lock body and an outer lock body, wherein the inner lock body comprises an inner handle, an inner rotary disc, an inner clutch device and an inner rod seat fixedly connected with the inner rotary disc; the inner handle is connected with the inner rotary disc and can drive the inner rotary disc to rotate along the unlocking or locking direction, and the inner clutch device can lock or unlock the inner rotary disc to rotate along the unlocking direction; the outer lock body comprises an outer handle, an outer rotary disc and an outer clutch device; the outer handle is connected with the outer rotary disc and can drive the outer rotary disc to rotate along the unlocking or locking direction; the outer rotating disc is fixedly provided with an outer rod seat and a rod sleeve which is rotationally sleeved with the outer rod seat, and the outer clutch device can lock or unlock the rotation of the rod sleeve and the outer rod seat; the inner rod seat and the rod sleeve are used for connecting the same driving rod.

Further, an inner clutch groove is formed in the inner rotary disc, the inner clutch device comprises a first clutch pin capable of extending into or exiting from the inner clutch groove and a driving device capable of driving the first clutch pin to move, and when the first clutch pin extends into the inner clutch groove, rotation of the inner rotary disc in the unlocking direction is locked.

Further, the inner lock body also comprises a separating block and an elastic pushing mechanism capable of pushing the separating block to move; the separating block and the inner rotating plate are movably arranged, and the separating block comprises a main body part and an ejection part capable of ejecting the first clutch pin out of the inner clutch groove during movement, wherein the ejection part is arranged on the main body part and stretches into the inner clutch groove; one end of the elastic pushing mechanism extends out of the outer side of the inner handle, and the other end extends into the inner side of the inner handle and is connected with the separation block.

Further, a first through hole which is arranged in a penetrating way along the axial direction is formed in the middle of the inner rotating disc; the inner handle comprises an inner holding part and an inner connecting part, wherein the inner holding part is used for fixedly connecting the inner turntable, and the inner connecting part is provided with a second through hole corresponding to the first through hole; the elastic pushing mechanism comprises a key with one end extending out of the second through hole and the other end connected with the main body part of the separation block, and a first elastic piece for pushing the key to reset; pressing the key can push the main body part to drive the ejection part to move in the inner clutch groove, and the first clutch pin is ejected out of the inner clutch groove.

Further, the pushing part is connected to the side surface of the main body part, extends outwards relative to the main body part, and is provided with a pushing inclined surface for pushing the first clutch pin at one end extending outwards.

Further, a guide chute for the first clutch pin to slide when the inner rotating disc rotates along the locking direction is arranged on the side wall of the inner rotating disc; the guide chute is communicated with the inner clutch groove, and the depth of the guide chute is gradually reduced from one end close to the inner clutch groove to the other end.

Further, a first boss is arranged on the inner rotary table; the inner rod seat is arranged on the first boss, and a movable space of the separation block is formed between the inner rod seat and the inner rotary plate.

Further, the number of the first bosses is two, and the first bosses are symmetrically arranged at the edge position of the inner rotating disc; the first boss is provided with a groove, the inner rod seat comprises a seat main body for connecting a driving rod and two connecting lugs reversely arranged on the seat main body, and the connecting lugs are fixed in the groove.

Further, a second boss is further arranged on the inner rotary table, and the inner clutch groove is formed between the first boss and the second boss.

Further, the inner lock body further comprises an inner shell, two inner clutch grooves and first reversing nails extending towards the inner shell are symmetrically arranged on the inner rotary disc, a first torsion spring is arranged between the inner rotary disc and the inner shell, and two first positioning protrusions distributed on two sides of the inner rotary disc are arranged on the inner shell; the first reversing nail is abutted against the first free end of the torsion spring, and one of the first positioning protrusions is abutted against the second free end; after the inner rotating disc rotates 180 degrees, the first reversing nails can be switched to abut against the second free ends, and the first free ends abut against the other first positioning protrusions.

Further, the outer clutch device comprises a clutch and a second clutch pin movably arranged on the outer rotary disc, a first clutch hole is formed in the outer rod seat, a second clutch hole is formed in the rod sleeve, and when the rod sleeve rotates relative to the outer rod seat until the first clutch hole corresponds to the second clutch hole, the second clutch pin can extend into the first clutch hole and the second clutch hole to lock the rotation of the rod sleeve and the outer rod seat.

Further, a limiting mechanism for limiting the rotation angle of the rod sleeve relative to the outer rod seat is arranged between the rod sleeve and the outer rod seat.

Further, the limiting mechanism comprises a protrusion arranged on one of the rod sleeve and the outer rod seat and a non-circular groove arranged on the other of the rod sleeve and the outer rod seat, and when the rod sleeve rotates relative to the outer rod seat, the protrusion moves in the non-circular groove.

Further, the outer rod seat is provided with an inner cavity for sleeving the rod sleeve, the non-whole-circle groove is formed in the outer end of the inner cavity of the outer rod seat, and the bulge is formed in the position, corresponding to the non-whole-circle groove, of the outer wall of the rod sleeve.

Further, the outer lock body further comprises a rod sleeve pressing piece, a rod hole for connecting the driving rod is formed in the rod sleeve, the rod sleeve pressing piece is arranged at the outer end of the outer rod seat, the rod sleeve is limited in the inner cavity of the outer rod seat, and a third through hole corresponding to the rod hole is formed in the rod sleeve pressing piece.

Further, a second clutch seat is arranged on the outer rotary table, the second clutch pin is movably arranged in the second clutch seat, and a second elastic piece for applying force for enabling the second clutch pin to move in the direction of separating from the second clutch hole is also arranged in the second clutch seat.

Further, the outer rotary table is provided with a second reversing nail and two second clutch seats which are symmetrically arranged, each second clutch seat is internally provided with a second clutch pin and a second elastic piece, the outer rod seat is symmetrically provided with two first clutch holes, and the rod sleeve is symmetrically provided with two second clutch holes.

Further, the clutch comprises an ejector capable of ejecting the second clutch pin and a driver for driving the ejector to move.

Further, the lockset further comprises a biological feature collector, the biological feature collector is arranged on the outer handle, a wiring channel penetrating through the rotary disc is arranged in the middle of the outer rotary disc, the inside of the guide handle connected with the biological feature collector is penetrated through the wiring channel, and the wiring channel extends out of the outer rotary disc.

The lock has the advantages that the rotation of the inner rotating disc along the unlocking direction is locked through the cooperation of the inner rotating disc of the inner lock body and the inner clutch device, and meanwhile, the rotation of the driving rod connected with the inner rod seat is locked, so that the driving rod is prevented from being rotated by an inserting piece type tool outdoors, and the lock tongue is driven to move, thereby achieving the purpose of illegal unlocking. And the outer clutch device can realize the linkage of the rod sleeve and the outer rod seat, and the outer rotary table can rotate to drive the outer rod seat and the rod sleeve to rotate together so as to drive the driving rod connected with the rod sleeve to rotate to realize unlocking or locking. The inner clutch device and the outer clutch device are arranged to form double clutch of the lockset, illegal molecules can be prevented from unlocking the lockset by knocking the outer shell, unlocking the clamping piece or unlocking the lockset violently, and the safety performance of the lockset is improved.

Drawings

The invention will now be described in further detail with reference to the drawings and examples, in which:

FIG. 1 is a schematic diagram of a combined state of an inner lock body and an outer lock body of a lock provided by the invention;

FIG. 2 is a schematic view of an exploded construction of the inner lock body provided by the present invention;

FIG. 3 is a schematic view of an exploded construction of the inner lock body provided by the present invention;

FIG. 4 is a schematic view of an exploded construction of an outer lock body provided by the present invention;

FIG. 5 is a schematic view of an exploded construction of the outer lock body provided by the present invention;

FIG. 6 is a schematic perspective view of the inner dial and the separation block of the inner lock body;

FIG. 7 is a schematic perspective view of the drive mechanism of the inner lock body;

FIG. 8 is a schematic cross-sectional view of the inner lock body;

FIG. 9 is a schematic view of the partially enlarged structure of FIG. 8;

FIG. 10 is an enlarged partial schematic view of the torsion spring mechanism of the inner lock body;

FIG. 11 is a schematic perspective view of the sleeve and seat of the outer lock body;

FIG. 12 is a schematic perspective view of an outer turntable;

FIG. 13 is a schematic cross-sectional view of an outer lock body;

Fig. 14 is an enlarged partial schematic view of fig. 13.

Detailed Description

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

It should be noted that the description of the present application uses spatially relative terms, such as "bottom," "side," "upper," "lower," "front," and the like, for convenience of description to describe one element or feature as illustrated in the figures in spatial locality with respect to another element or feature. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the component or feature depicted in the figures.

As shown in fig. 1 to 5, the present invention provides a lock, comprising an inner lock body 1 and an outer lock body 2, wherein the inner lock body 1 comprises an inner shell 11, an inner handle 12 arranged outside the inner shell 11, an inner rotating disc 13 and an inner clutch device 14 arranged inside the inner shell 11, the inner shell 11 comprises an inner panel 111 and an inner cover plate 112 fixedly connected with the inner panel 111, the inner cover plate 112 is tightly attached to the inner side of a door plate, and an inner cavity is formed between the inner panel 111 and the inner cover plate 112. The inner rotary disk 13 is disposed in the inner cavity, and the inner rotary disk 13 can rotate along an unlocking or locking direction, preferably, the unlocking direction is a pressing direction of the inner handle 12, and the locking direction is a lifting direction of the inner handle 12. The inner rotary plate 13 is fixedly connected with the inner handle 12, the inner handle 12 can drive the inner rotary plate 13 to rotate, an inner rod seat 132 is fixedly arranged at one end of the inner rotary plate 13, a connecting hole 1321 for connecting the driving rod 3 is formed in the inner rod seat 132, unlocking or locking power can be output by the driving rod 3 under the driving of the inner rotary plate 13, and the inner clutch device 14 can lock or unlock the inner rotary plate 13 to rotate along the unlocking direction. The outer lock body 2 comprises an outer shell 21, an outer handle 22 and an unlocking signal collector 23 which are arranged on the outer side of the outer shell 21, an outer rotary disc 24 and an outer clutch device 25 which are arranged on the inner side of the outer shell 21, the outer shell 21 comprises an outer panel 211 and an outer cover plate 212 fixedly connected with the outer panel 211, an outer accommodating cavity is formed between the outer panel 211 and the outer cover plate 212, the outer handle 22 comprises an outer holding part 221 and an outer connecting part 222 fixedly connected with the outer holding part 221, and the outer holding part 221 and the outer connecting part 222 are integrally formed. The outer rotating disc 24 can rotate along the unlocking or locking direction, the unlocking or locking direction of the outer rotating disc 24 is matched with the inner rotating disc 13, the pressing direction of the outer handle 22 is the unlocking direction, the lifting direction is the locking direction, the outer rotating disc 24 is arranged in the outer accommodating cavity, a shaft lever 241 is arranged on one side of the outer rotating disc 24, a shaft hole 2221 corresponding to the shaft lever 241 is arranged on the outer connecting part 222, a fourth hole 2111 matched with the shaft lever 241 is arranged on the outer panel 211, the shaft lever 241 is arranged in the fourth hole 2111 in a penetrating manner and is clamped in the shaft hole 2221, Preferably, the shaft lever 241 and the shaft hole 2221 are respectively provided with corresponding threads, the screw 26 is inserted between the shaft lever 241 and the shaft hole 2221 to realize the fixed connection between the shaft lever 241 and the shaft hole 2221, and the outer handle 22 may drive the outer rotating disc 24 to rotate together so as to transmit unlocking power. The outer rotating disc 24 is fixedly provided with an outer rod seat 242 and a rod sleeve 244 movably sleeved with the outer rod seat 242, and the rod sleeve 244 and the inner rod seat 132 are used for connecting the same driving rod 3. The outer clutch 25 can lock or unlock the rotation of the sleeve 244 and the outer rod base 242, and rotating the outer rotating disc 24 can drive the outer rod base 242 to rotate together. The unlocking signal collector 23 is fixed on the outer shell 21 and is electrically connected with a main control module (not shown in the figure), the unlocking signal collector 23 receives input information and then sends the input information to the main control module for comparison, if the input information meets the requirements, the main control module sends an electronic instruction to the inner clutch device 14 and the outer clutch device 25, the inner clutch device 14 unlocks the rotation of the inner rotating disc 13 along the unlocking direction, the outer clutch device 25 locks the rotation of the rod sleeve 244 and the outer rod seat 242, and the outer handle 22 rotates to drive the outer rotating disc 24 to drive the driving rod 3 to rotate so as to drive the lock tongue to move for unlocking. Preferably, the unlocking signal collector 23 is a biological feature collector, a password input module or an IC card sensing module, etc., the unlocking signal collector 23 is electrically connected with a main control module, and the main control module can identify information from the unlocking signal collector 23. The double clutch of the lockset is formed by arranging the inner clutch device 14 and the outer clutch device 25, so that illegal molecules are prevented from directly driving the outer rotary disc 24 to drive the driving rod 3 to rotate for unlocking or unlocking by using clamping pieces through violent twisting of the outer handle 22.

As shown in fig. 1, 2 and 6, the inner rotary disk 13 is further provided with an inner clutch groove 131. The inner clutch device 14 is fixed on the inner panel 111, and comprises a first clutch pin 141 capable of extending into or exiting from the inner clutch slot 131, and a driving device 142 connected with the first clutch pin 141, wherein the driving device 142 can drive the first clutch pin 141 to extend into or retract from the inner clutch slot 131 after receiving an electronic instruction, when the first clutch pin 141 extends into the inner clutch slot 131, the rotation of the inner rotary disk 13 along the unlocking direction is locked, and when the first clutch pin 141 exits from the inner clutch slot 131, the rotary disk can rotate along the unlocking direction. The inner clutch groove 131 and the first clutch pin 141 can be matched to lock the inner rotary disk 13 to rotate along the unlocking direction, and meanwhile, the driving rod 3 connected with the inner rotary disk 13 is locked to rotate, so that the driving rod 3 is prevented from being rotated by an inserting piece type tool outdoors, the lock tongue is driven to move, the purpose of illegally unlocking is achieved, and the first clutch pin 141 is difficult to shake out of the inner clutch groove 131 by knocking the inner shell 11. Even if the outer lock body is removed, the first clutch pin 141 and the inner clutch groove 131 are still matched to limit the rotation of the driving rod 3 along the unlocking direction, and an illegal molecule cannot achieve the purpose of illegal unlocking by rotating the driving rod 3. The lock further comprises a separating block 15 and an elastic pushing mechanism 16 capable of pushing the separating block 15 to move, wherein the separating block 15 and the inner rotating disc 13 are movably arranged, the separating block 15 can move relative to the inner rotating disc 13, the separating block 15 comprises a main body 151 and an ejection portion 152 capable of pushing the first clutch pin 141 out of the inner clutch groove 131 during movement, and the ejection portion 152 is arranged on the main body 151 and stretches into the inner clutch groove 131. The ejector 152 is movable in the inner clutch groove 131 when the separation block 15 moves relative to the inner rotor 13. one end of the elastic pushing mechanism 16 extends out of the inner housing 11, and the other end extends into the inner side (accommodating cavity) of the inner housing 11 and is connected with the separating block 15. The middle part of the inner rotary disk 13 is provided with a first through hole 133 penetrating through the inner rotary disk 13 along the axial direction, the inner handle 12 comprises an inner holding part 121 and an inner connecting part 122 for fixedly connecting the inner rotary disk 13, the inner holding part 121 and the inner connecting part 122 are integrally formed, the inner connecting part 122 is provided with a second through hole 1221 corresponding to the first through hole 133 in position, and the inner panel 111 is provided with a fifth through hole 1111 corresponding to the first through hole 133 and the second through hole 1221 in position. The elastic pushing mechanism 16 comprises a key 161 with one end extending from the second through hole 1221 and the other end connected with the main body 151 of the separating block 15, and a first elastic member 162 for pushing the key 161 to reset, pressing the key 161 can push the main body 151 to drive the ejector 152 to move in the inner clutch slot 131, the first clutch pin 141 extends into the inner clutch slot 131 and is positioned at the front end of the ejector 152 in the moving direction, the ejector 152 moving forward can push the first clutch pin 141 and the first clutch pin 141 out of the inner clutch slot 131, Therefore, when the inner rotary table 13 is unlocked to rotate along the unlocking direction, in the process, the resistance when the key 161 is pressed to push the main body 151 mainly comes from the first clutch pin 141 and the first elastic piece 162, the resistance is small, the pressing is light, and the use experience is good. The inner handle 12 transmits unlocking power through the inner rotary table 13, the driving rod 3 is driven to rotate by the key 161 and the separating block 15 instead of outputting the unlocking power, and the inner handle 12 is rotated by the arrangement that the inner rotary table 13 transmitting the unlocking power is separated from the separating block 15 for unlocking the rotation of the inner rotary table 13, so that the force required by the rotation of the inner rotary table 13 is small. The first elastic member 162 may push the key 161 to reset, and when the inner handle 12 is rotated, the key 161 must be pressed and the first clutch pin 141 is kept to move out of the inner clutch slot 131, and the inner handle 12 may drive the inner rotating disc 13 to rotate along the unlocking direction, thereby solving the potential safety hazard of unlocking by illegal molecules from the cat eye.

As shown in fig. 6, the pushing portion 152 is connected to a side surface of the main body 151 and extends outwards relative to the main body 151, an end of the pushing portion 152 extending outwards is provided with a pushing inclined surface 1521 for pushing the first clutch pin 141, and the thickness of the pushing inclined surface 1521 gradually decreases along the outwards extending direction, preferably, the end of the pushing inclined surface 1521 still has a certain thickness, and after the first clutch pin 141 is moved out of the inner clutch slot 131, the end of the pushing inclined surface 1521 abuts against the first clutch pin 141. Preferably, the main body 151 is integrally formed with the ejector 152. The ejector 152 is connected to the side of the main body 151 and extends outwards relative to the main body 151, so that the thickness of the separating block 15 is smaller, so that the whole structure of the lock is thinner.

As shown in fig. 6, a guiding chute 134 for the first clutch pin 141 to slide when the inner rotary disk 13 rotates in the locking direction is provided on the side wall of the inner rotary disk 13, the guiding chute 134 communicates with the inner clutch slot 131, and the depth of the guiding chute 134 gradually decreases from one end close to the inner clutch slot 131 to the other end. The first clutch pin 141 can move out of the inner clutch groove 131 from the guide chute 134, so that the first clutch pin 141 does not lock the rotation of the inner rotary disk 13 in the locking direction, and when the door is closed, the inner rotary disk 13 is driven to rotate by rotating the inner handle 12 in the locking direction, thereby driving the driving rod 3 to lock.

As shown in fig. 1, 2 and 6, the inner rod seat 132 is used to connect the driving rod 3, and the driving rod 3 is used to drive the lock cylinder to push the lock tongue to move to unlock or lock, preferably, the driving rod 3 is a square rod, but in other embodiments, the driving rod 3 may be in other shapes. Because the inner rod seat 132 is fixedly connected with the inner rotary disk 13, the inner rotary disk 13 can drive the driving rod 3 to rotate by driving the inner rod seat 132 to rotate. The inner rotating disc 13 is provided with a first boss 135, the inner rod seat 132 is fixedly mounted on the first boss 135, and a movable space of the separating block 15 is formed between the inner rod seat 132 and the inner rotating disc 13, so as to limit a movement space of the pushing portion 152 in the inner clutch groove 131. Preferably, the number of the first bosses 135 is two, and the first bosses 135 are symmetrically disposed at the edge of the inner rotary disk 13, a groove 1351 is provided on the first boss 135, the inner rod seat 132 includes a seat main body 1322 for connecting the driving rod 3 and a connecting lug 1323 reversely disposed on the seat main body 1322, screw holes are provided on the connecting lug 1323 and the groove 1351, the connecting lug 1323 is fixed in the groove 1351 through threaded connection, and by disposing the groove 1351 on the first boss 135, when the inner rotary disk 13 drives the inner rod seat 132 to rotate, the groove 1351 of the first boss 135 can also apply pushing force to the inner rod seat 132 by itself, thereby increasing structural stability between the inner rod seat 132 and the inner rotary disk 13. The inner rotating disc 13 is further provided with a second boss 136, two inner clutch grooves 131 are formed between the first boss 135 and the second boss 136, the second bosses 136 are symmetrically arranged at the edge positions of the inner rotating disc 13, two inner clutch grooves 131 are formed and symmetrically arranged, and correspondingly, the number of the push parts 152 is two and respectively extend into the two inner clutch grooves 131. In other embodiments, the inner clutch groove 131 may also be provided on the first boss 135.

As shown in fig. 1, 2, and 6 to 10, the elastic pushing mechanism 16 further includes a key lever 163, the key lever 163 is disposed through the first through hole 133, the second through hole 1221, and the fifth through hole 1111, one end of the key lever 163 is fixedly connected to the main body 151 of the separation block 15, the other end of the key lever 163 is fixedly connected to the key 161, the key lever 163, the separation block 15, and the key 161 are all fixed through threaded connection, and pressing the key 161 can push the key lever 163 to drive the push top 152 to move in the inner clutch groove 131. The inner connecting portion 122 is provided with a key cavity, the key 161 is disposed in the key cavity, the first elastic member 162 is a spring, the spring is sleeved outside the key lever 163, and two ends of the spring respectively abut against the bottom of the key cavity and the lower surface of the key 161. Preferably, the key cavity is composed of a first cavity and a second cavity which are mutually communicated but have different diameters, the diameter of the first cavity is smaller than that of the second cavity, the spring is located in the first cavity, a key cap is arranged at one end of the key 161 facing the outside of the inner connecting part 122, the key cap is arranged in the second cavity, the diameter of the key cap is larger than that of the first cavity and smaller than or equal to that of the second cavity, the key cap cannot continue to move along the original direction when being pressed against the bottom of the second cavity, and after the external force applied to the key cap is removed, the compressed spring pushes the key cap to reset under the action of restoring force and drives the separation block 15 to reset through the key rod 163 fixedly connected with the key 161. The inner rotary table 13 is further provided with a sleeve extending towards the inner handle 12, the inner connecting portion 122 is provided with a cavity corresponding to the sleeve, the sleeve is fixedly connected with the cavity, and when the inner handle 12 is rotated, the sleeve drives the inner rotary table 13 to rotate together.

As shown in fig. 1, 2 and 6 to 10, the inner rotating disc 13 is symmetrically provided with two inner clutch grooves 131 formed by the first boss 135 and the second boss 136 and a first reversing nail 138 extending toward the inner panel 111, a first torsion spring 17 is disposed between the inner rotating disc 13 and the inner panel 111, the first torsion spring 17 has a first free end 171 and a second free end (not shown in the drawings), the inner panel 111 is provided with two first positioning protrusions symmetrically distributed on two sides of the inner rotating disc 13, and the first free end 171 and the second free end respectively abut against the two first positioning protrusions. When the first reversing nail 138 is simultaneously abutted against the first free end 171 of the first torsion spring 17, one of the first positioning projections is abutted against the second free end; after the inner disk 13 rotates 180 degrees, the first reversing nail 138 can be switched to abut against the second free end, and the first free end 171 abuts against the other first positioning protrusion. When the inner handle 12 is turned to unlock or lock, the inner rotary disk 13 drives the first reversing nail 138 to push the first free end 171 or the second free end of the first torsion spring 17 which is abutted against the first reversing nail 138 to rotate together, and after the inner handle 12 is released, the compressed first torsion spring 17 pushes the inner rotary disk 13 and the inner handle 12 to reset under the action of restoring force. The inner rotary disk 13 rotates 180 degrees and drives the other inner clutch groove 131 to rotate 180 degrees, and the first clutch pin 141 cooperates with the inner clutch groove 131 to lock or unlock the rotation of the inner rotary disk 13. Through set up first boss 135 and second boss 136 on the inner rotating disk 13 symmetry and set up two pushing parts 152 on the separation piece 15, rotate inner rotating disk 13180 degrees back for inner handle 12 with inner rotating disk 13 fixed connection also can rotate 180 degrees, thereby realize the switching of the left side of inner handle 12 and the state of opening the door to the right side. Preferably, the inner clutch 14 further includes a first clutch seat 143, the first clutch seat 143 is located between the driving device 142 and the inner rotating disc 13, the first clutch seat 143 is fixedly connected to the inner panel 111, and the first free end 171 and the second free end of the first torsion spring 17 rotate between the first clutch seat 143 and the first positioning protrusion, so as to limit the rotation angle of the first torsion spring 17, and avoid the first torsion spring 17 from being easily damaged due to over-compression. The first clutch seat 143 is provided with a clutch hole 431, the first clutch pin 141 is inserted into the clutch hole 431 and extends into or exits from the inner clutch slot 131, and the first clutch seat 143 is matched with the first clutch pin 141, so that displacement or damage of the first clutch pin 141 caused by overlarge rotation force of the inner turntable 13 is avoided.

As shown in fig. 3, 4 and 11, the outer clutch device 25 includes a clutch 251 and a second clutch pin 243 movably disposed on the outer rotating disc 24, a first clutch hole 2421 is disposed on the outer lever seat 242, a second clutch hole 2441 is disposed on the lever sleeve 244, when the lever sleeve 244 rotates relative to the outer lever seat 242 until the second clutch hole 2441 corresponds to the first clutch hole 2421, the second clutch pin 243 can extend into the first clutch hole 2421 and the second clutch hole 2441, thereby locking the rotation of the outer lever seat 242 and the lever sleeve 244, when the outer rotary table 24 rotates to drive the outer rod base 242 to rotate together, the outer rod base 242 transmits power to the rod sleeve 244 through the second clutch pin 243, so that the rod sleeve 244 also rotates to unlock or lock the lock. when the second clutch pin 243 exits the second clutch hole 2441, the outer rotating disc 24 cannot drive the rod sleeve 244 to rotate together, so that the outer handle 22 is rotated in idle rotation. The second clutch pin 243 is difficult to vibrate to extend into the first clutch hole 2421 and the second clutch hole 2441 by knocking the outer housing 21 of the lock, so as to achieve unlocking, and the first clutch hole 2421 and the second clutch hole 2441 may be dislocated when knocking, and the second clutch pin 243 is difficult to extend into the second clutch hole 2441 even if extending into the first clutch hole 2421, thereby improving the safety performance and the anti-theft performance of the lock. preferably, a limiting mechanism for limiting the rotation angle of the rod sleeve 244 relative to the outer rod seat 242 is arranged between the rod sleeve 244 and the outer rod seat 242, the limiting mechanism comprises a protrusion 2442 arranged on one of the rod sleeve 244 and the outer rod seat 242 and a non-circular groove 2422 arranged on the other, when the rod sleeve 244 rotates relative to the outer rod seat 242, the protrusion 2442 moves in the non-circular groove 2422, the relative rotation between the rod sleeve 244 and the outer rod seat 242 is limited by the cooperation of the protrusion 2442 and the non-circular groove 2422, when the rod sleeve 244 and the outer rod seat 242 are rotated to a certain angle, The other will limit its continued rotation in the original direction of rotation. The outer stem block 242 is provided with an inner cavity 2423 for receiving the stem sleeve 244, and the stem sleeve 244 is rotatable relative to the outer stem block 242 within the inner cavity 2423. Preferably, the non-circular groove 2422 is disposed at the outer end of the inner cavity 2423 of the outer stem base 242, so that the stem sleeve 244 is mounted on the outer stem base 242, the protrusion 2442 is disposed on the outer wall of the stem sleeve 244 and corresponds to the non-circular groove 2422, the non-circular groove 2422 is formed by partially recessing the inner side wall of the outer stem base 242 and surrounding the outer side wall of the outer stem base 242, and in other embodiments, the non-circular groove 2422 may be formed by through grooves passing through the inner side wall and the outer side wall of the outer stem base 242. The lock further comprises a rod sleeve pressing piece 27, a rod hole 2443 for connecting the driving rod 3 is formed in the rod sleeve 244, the rod sleeve pressing piece 27 is arranged at the outer end part of the outer rod seat 242 and fixedly connected with the outer rod seat 242, the rod sleeve 244 is limited in an inner cavity 2423 of the outer rod seat 242, a third through hole 271 corresponding to the rod hole 2443 is formed in the rod sleeve pressing piece 27, the driving rod 3 penetrates through the third through hole 271 and the rod hole 2443, and when the second clutch pin 243 stretches into the first clutch hole 2421 and the second clutch hole 2441, the outer rotating disc 24 is rotated to drive the rod sleeve 244 to rotate together so as to drive the driving rod 3 to drive the lock tongue to move to unlock or lock.

As shown in fig. 3, 4, 11 and 12, the outer rotating disc 24 is provided with a second clutch seat 245, the second clutch pin 243 is movably disposed in the second clutch seat 245, the second clutch pin 243 moves in the second clutch seat 245 to extend into or withdraw from the first clutch hole 2421 and the second clutch hole 2441, a third clutch hole 2451 penetrating through two ends is disposed in the second clutch seat 245, the third clutch hole 2451 corresponds to the second clutch hole 2441 and the first clutch hole 2421, the second clutch pin 243 is movably disposed in the third clutch hole 2451, When the second clutch pin 243 is located in the first clutch hole 2421 and the second clutch hole 2441, one end of the second clutch pin 243 is still located in the third clutch hole 2451, and when the second clutch pin 243 links the rod sleeve 244 and the outer rod seat 242, the second clutch seat 245 can make the stress distribution of the second clutch pin 243 more uniform, so as to avoid the breakage of the second clutch pin 243 due to overlarge rotation force. The second clutch seat 245 is further provided therein with a second elastic member 2452 for applying a force for moving the second clutch pin 243 in a direction of separating from the second clutch hole 2441, the second elastic member 2452 is a spring, the spring is sleeved on the second clutch pin 243, the spring is disposed in the third clutch hole 2451, when the second clutch pin 243 is forced to extend into the second clutch hole 2441, the spring is compressed to generate an elastic restoring force, after the external force is removed, the second clutch pin 243 is restored under the action of the elastic restoring force, when the outer housing 21 is knocked, the second clutch seat 245 dampens the second clutch pin 243, the spring may also restrict the movement of the second clutch pin 243 in the direction of the second clutch hole 2441, so that it is substantially impossible for the second clutch pin 243 to enter the second clutch hole 2441 due to the shock of the knocking. Preferably, the outer rotating disc 24 is provided with a second reversing nail 246 and two second clutch seats 245 symmetrically arranged, each second clutch seat 245 is internally provided with a second clutch pin 243 and a second elastic member 2452 pushing the second clutch pin 243 to reset, the outer rod seat 242 is symmetrically provided with two first clutch holes 2421, the rod sleeve 244 is symmetrically provided with two second clutch holes 2441, and the two third clutch holes 2451 correspond to the two second clutch holes 2441. A second torsion spring 28 is disposed between the outer rotating disc 24 and the outer panel 211, the second torsion spring 28 has a third free end 281 and a fourth free end 282, two second positioning protrusions (not shown in the drawing) symmetrically distributed on two sides of the outer rotating disc 24 are disposed on the outer panel 211, the third free end 281 and the fourth free end 282 respectively abut against the two second positioning protrusions, and when the second reversing nail 246 simultaneously abuts against the third free end 281 of the second torsion spring 28, one of the second positioning protrusions abuts against the fourth free end 282; After the outer rotating disc 24 rotates 180 degrees, the second reversing nail 246 may be switched to abut against the fourth free end 282, the third free end 281 abuts against another second positioning protrusion, when the outer handle 22 is rotated to unlock or lock, the outer rotating disc 24 drives the second reversing nail 246 to push the third free end 281 or the fourth free end 282 of the second torsion spring 28 abutting against the second reversing nail 246 to rotate together, and after the outer handle 22 is released, the compressed second torsion spring 28 pushes the outer rotating disc 24 and the outer handle 22 to reset under the action of restoring force.

As shown in fig. 3, 4, and 10 to 14, the clutch 251 is disposed on the outer housing 21, and includes an ejector 2511 capable of ejecting the second clutch pin 243 and a driver 2512 for driving the ejector 2511 to move, where the driver 2512 is electrically connected to the main control module, a wiring channel penetrating the outer rotating disc 24 is disposed in the middle of the outer rotating disc 24, and a guide passing through the outer handle 22 and connected to the unlocking signal collector 23 is disposed in the wiring channel and extends out of the outer rotating disc 24 from the wiring channel. The main control module may send an electronic instruction to the driver 2512, after the driver 2512 receives the electronic instruction, the driver 2512 may drive the ejector 2511 to eject the second clutch pin 243 to extend into the second clutch hole 2441, after the driver 2512 drives the ejector 2511 to reset, the second clutch pin 243 that loses the acting force of the ejector 2511 resets under the action of the second elastic member 2452. After the second reversing nail 246 is loosened and the outer rotating disc 24 is rotated 180 degrees, the other second clutch pin 243 symmetrically arranged is matched with the ejector 2511, and correspondingly, the outer handle 22 fixedly connected with the outer rotating disc 24 is also rotated 180 degrees, so that the left door or the right door of the outer handle 22 is realized. Preferably, the pushing element 2511 is in a circular arc shape, and when the driver 2512 drives the pushing element 2511 to move towards the second clutch hole 2441 to abut against the outer rotating disc 24, the pushing element 2511 abuts against the side wall of the outer rotating disc 24, so as to ensure that the pushing element 2511 always abuts against the second clutch pin 243 when the outer rotating disc 24 rotates, so as to keep the state of extending into the second clutch hole 2441.

When the door is unlocked from outside, the unlocking signal collector 23 sends the collected information to the main control module, for meeting the requirements, the main control module outputs an electronic instruction to the driving device 142 and the driver 2512, the driving device 142 drives the first clutch pin 141 to withdraw from the inner clutch groove 131 after receiving the electronic instruction, the inner rotating disc 13 is unlocked to rotate along the unlocking direction, the driver 392 drives the second clutch pin 243 to extend into the first clutch hole 2421 and the second clutch hole 2441 after receiving the electronic instruction, and then the outer handle 22 is rotated to drive the driving rod 3 to drive the lock tongue to move and unlock. When unlocking from the door, pressing the key 161 pushes the pushing portion 152 to move, so as to push the first clutch pin 141 out of the inner clutch groove 131, at this time, the second clutch pin 243 does not extend into the first clutch hole 2421 and the second clutch hole 2441, and rotating the inner handle 12 drives the driving rod 3 to rotate to unlock.

It should be understood that the foregoing embodiments are merely illustrative of the technical solutions of the present invention, and not limiting thereof, and that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art; all such modifications and substitutions are intended to be included within the scope of this disclosure as defined in the following claims.

Claims

1. The utility model provides a tool to lock, includes interior lock body and outer lock body, its characterized in that:

the inner lock body comprises an inner handle, an inner rotary disc, an inner clutch device and an inner rod seat fixedly connected with the inner rotary disc; the inner handle is connected with the inner rotary disc and can drive the inner rotary disc to rotate along the unlocking or locking direction, and the inner clutch device can lock or unlock the inner rotary disc to rotate along the unlocking direction;

The outer lock body comprises an outer handle, an outer rotary disc and an outer clutch device; the outer handle is connected with the outer rotary disc and can drive the outer rotary disc to rotate along the unlocking or locking direction; the outer rotating disc is fixedly provided with an outer rod seat and a rod sleeve which is rotationally sleeved with the outer rod seat, and the outer clutch device can lock or unlock the rotation of the rod sleeve and the outer rod seat;

the inner rod seat and the rod sleeve are used for connecting the same driving rod;

The inner rotary table is provided with an inner clutch groove, the inner clutch device comprises a first clutch pin which can extend into or withdraw from the inner clutch groove and a driving device which can drive the first clutch pin to move, when the first clutch pin extends into the inner clutch groove, the rotation of the inner rotary table along the unlocking direction is locked, and when the first clutch pin withdraws from the inner clutch groove, the rotary table can rotate along the unlocking direction;

The outer clutch device comprises a clutch and a second clutch pin movably arranged on the outer turntable, and the clutch comprises an ejector piece capable of ejecting the second clutch pin and a driver for driving the ejector piece to move; the outer rod seat is provided with a first clutch hole, the rod sleeve is provided with a second clutch hole, and when the rod sleeve rotates relative to the outer rod seat until the first clutch hole corresponds to the second clutch hole, the second clutch pin can extend into the first clutch hole and the second clutch hole to lock the rod sleeve and the outer rod seat from rotating.

2. The lock of claim 1, wherein the inner lock body further comprises a release block and an elastic pushing mechanism capable of pushing the release block to move; the separating block and the inner rotating plate are movably arranged, and the separating block comprises a main body part and an ejection part capable of ejecting the first clutch pin out of the inner clutch groove during movement, wherein the ejection part is arranged on the main body part and stretches into the inner clutch groove; one end of the elastic pushing mechanism extends out of the outer side of the inner handle, and the other end extends into the inner side of the inner handle and is connected with the separation block.

3. The lock according to claim 2, wherein a first through hole penetrating along the axial direction is formed in the middle of the inner rotary disc; the inner handle comprises an inner holding part and an inner connecting part, wherein the inner holding part is used for fixedly connecting the inner turntable, and the inner connecting part is provided with a second through hole corresponding to the first through hole; the elastic pushing mechanism comprises a key with one end extending out of the second through hole and the other end connected with the main body part of the separation block, and a first elastic piece for pushing the key to reset; pressing the key can push the main body part to drive the ejection part to move in the inner clutch groove, and the first clutch pin is ejected out of the inner clutch groove.

4. The lock according to claim 2, wherein the ejector portion is connected to a side surface of the main body portion, extends outwardly with respect to the main body portion, and has an ejector slope at an end extending outwardly for ejecting the first release pin.

5. The lock according to claim 2, wherein a guide chute for sliding the first clutch pin when the inner rotor rotates in the locking direction is provided on a side wall of the inner rotor; the guide chute is communicated with the inner clutch groove, and the depth of the guide chute is gradually reduced from one end close to the inner clutch groove to the other end.

6. The lock according to claim 2, wherein the inner dial is provided with a first boss; the inner rod seat is arranged on the first boss, and a movable space of the separation block is formed between the inner rod seat and the inner rotary plate.

7. The lock according to claim 6, wherein the number of the first bosses is two, and the first bosses are symmetrically arranged at the edge position of the inner rotary disc; the first boss is provided with a groove, the inner rod seat comprises a seat main body for connecting a driving rod and two connecting lugs reversely arranged on the seat main body, and the connecting lugs are fixed in the groove.

8. The lock of claim 6, wherein the inner dial is further provided with a second boss, and the inner clutch groove is formed between the first boss and the second boss.

9. The lock according to claim 2, wherein the inner lock body further comprises an inner shell, the inner turntable is symmetrically provided with two inner clutch grooves and first reversing nails extending towards the inner shell, a first torsion spring is arranged between the inner turntable and the inner shell, and the inner shell is provided with two first positioning protrusions distributed on two sides of the inner turntable; the first reversing nail is abutted against the first free end of the torsion spring, and one of the first positioning protrusions is abutted against the second free end; after the inner rotating disc rotates 180 degrees, the first reversing nails can be switched to abut against the second free ends, and the first free ends abut against the other first positioning protrusions.

10. The lock according to claim 1, wherein a limiting mechanism is provided between the sleeve and the outer rod seat for limiting the angle of rotation of the sleeve relative to the outer rod seat.

11. The lock of claim 10, wherein the stop mechanism includes a protrusion on one of the sleeve and the outer hub and a non-circular recess on the other, the protrusion moving within the non-circular recess when the sleeve rotates relative to the outer hub.

12. The lock according to claim 11, wherein the outer rod seat is provided with an inner cavity for sleeving the rod sleeve, the non-circular groove is formed in the outer end of the inner cavity of the outer rod seat, and the protrusion is formed in a position, corresponding to the non-circular groove, of the outer wall of the rod sleeve.

13. The lock according to claim 12, wherein the outer lock body further comprises a rod sleeve pressing piece, wherein the rod sleeve pressing piece is provided with a rod hole for connecting a driving rod, the rod sleeve pressing piece is arranged at the outer end part of the outer rod seat, the rod sleeve is limited in the inner cavity of the outer rod seat, and the rod sleeve pressing piece is provided with a third through hole corresponding to the rod hole.

14. The lock according to claim 1, wherein the outer rotary plate is provided with a second clutch seat, the second clutch pin is movably disposed in the second clutch seat, and a second elastic member for applying a force for moving the second clutch pin in a direction of separating from the second clutch hole is further disposed in the second clutch seat.

15. The lock according to claim 14, wherein the outer rotary disc is provided with a second reversing nail and two second clutch seats symmetrically arranged, each second clutch seat is internally provided with the second clutch pin and a second elastic piece, the outer rod seat is symmetrically provided with two first clutch holes, and the rod sleeve is symmetrically provided with two second clutch holes.

16. The lock according to claim 1, further comprising a biometric feature collector disposed on the outer handle, wherein a routing channel penetrating the turntable is provided in the middle of the outer turntable, and a guide handle connected to the biometric feature collector is inserted into the routing channel and extends out of the outer turntable from the routing channel.