CN110453989B - Mortise lock - Google Patents

Abstract

The invention provides a mortise lock, which comprises a first lock body assembly, a second lock body assembly and a third lock body assembly which are sequentially connected, wherein the first lock body assembly and the third lock body assembly are both in driving connection with the second lock body assembly and can control the second lock body assembly to switch between a locking state and an unlocking state, and the first lock body assembly comprises: a first lock body; the rotating component is rotatably arranged in the first lock body and provided with an operating end extending out of the first lock body, and is in driving connection with the second lock body assembly, so that the second lock body assembly can be controlled to be switched between a locking state and an unlocking state; the locking assembly is arranged in the rotating component, and the locking end of the locking assembly can extend into or withdraw from the first lock body and block or avoid relative rotation between the rotating component and the first lock body so as to lock or unlock the first lock body assembly. The invention solves the problem that the lock core of the mortise lock in the prior art bears larger torque.

Description

Mortise lock

Technical Field

The invention relates to the technical field of locks, in particular to a mortise lock.

Background

The existing mortise lock mostly adopts a quincuncial lock cylinder to directly drive a rotating shaft, and the lock body applies torsion to the lock cylinder, so that the lock cylinder bears larger torsion. Meanwhile, when the key is pulled out, the clearance deviation exists, so that when the key is pulled out, the marble in the lock cylinder can be forcibly rotated by a marble position with a certain probability, and the key can not be unlocked normally during subsequent unlocking.

Disclosure of Invention

The invention mainly aims to provide a mortise lock so as to solve the problem that a lock cylinder of the mortise lock in the prior art bears larger torque.

In order to achieve the above object, the present invention provides a mortise lock, including a first lock body assembly, a second lock body assembly, and a third lock body assembly connected in sequence, where the first lock body assembly and the third lock body assembly are both in driving connection with the second lock body assembly, and each of the first lock body assembly and the third lock body assembly is capable of controlling the second lock body assembly to switch between a locked state and an unlocked state, and the first lock body assembly includes: a first lock body; the rotating component is rotatably arranged in the first lock body and provided with an operating end extending out of the first lock body, and is in driving connection with the second lock body assembly, so that the second lock body assembly can be controlled to be switched between a locking state and an unlocking state; the locking assembly is arranged in the rotating component, and the locking end of the locking assembly can extend into or withdraw from the first lock body and block or avoid relative rotation between the rotating component and the first lock body so as to lock or unlock the first lock body assembly.

Further, the latch assembly includes: a lock core; the transmission shaft is in driving connection with the output end of the lock cylinder; at least one locking pin is provided with a locking end, the transmission shaft is provided with a protruding part, and when the transmission shaft rotates under the drive of the lock cylinder, the protruding part extrudes the locking pin so that the locking pin can withdraw from the first lock body.

Further, the latch assembly also includes a latch pin return member that abuts the latch pin and provides a return force for the latch pin to extend into the first lock body.

Further, the latch assembly further comprises: the lock cylinder sleeve is sleeved outside the lock cylinder, the lock cylinder sleeve and the lock cylinder are provided with movements along the axial direction of the rotating part and can be switched between a position where the rotating part extends and a position where the rotating part retracts, when the locking end extends into the first lock body, the lock cylinder sleeve retracts into the rotating part, the locking assembly is embedded in the rotating part, when the lock cylinder sleeve exits from the first lock body, the lock cylinder sleeve extends out of the rotating part, and a part of the locking assembly extends out of the operating end; and the two ends of the lock cylinder sleeve resetting piece are respectively abutted with the lock cylinder sleeve and the rotating part, and provide resetting force for the lock cylinder sleeve and the lock cylinder to extend out of the rotating part.

Further, the rotating member is provided with a through hole through which the locking pin passes, the first lock body is provided with a locking hole through which the locking pin passes, the locking pin passes through the through hole and then extends into the locking hole to lock the first lock body assembly, the through hole extends for a predetermined length along the axial direction of the rotating member, and when the lock cylinder and the lock cylinder sleeve move along the axial direction of the rotating member, the locking end of the locking pin moves in the through hole along the length direction of the through hole.

Further, the locking assembly also includes a wireless chip that mates with the unlocking key.

Further, the locking assembly further comprises a dustproof assembly, and the dustproof assembly is arranged at the unlocking hole of the locking assembly in a cover mode in an openable mode.

Further, the first lock body assembly further includes a handle assembly disposed between the first lock body and the rotating member and extending into the first lock body when the rotating member is reset in place.

Further, the first lock body has a connection hole for connection with the second lock body assembly, and the rotating member shields the connection hole when the first lock body assembly is locked.

Further, the mortise lock further includes at least one adjustment assembly disposed between the first lock body assembly and the second lock body assembly, and/or between the second lock body assembly and the third lock body assembly, to vary a distance between the first lock body assembly and the second lock body assembly, and/or between the second lock body assembly and the third lock body assembly.

Further, the adjusting assembly includes: adjusting the lock body; the connecting shaft is movably arranged in the adjusting lock body, and the first lock body component and the second lock body component and/or the second lock body component and the third lock body component are/is connected through the driving of the connecting shaft.

Further, an adjusting groove is formed in the connecting shaft, the adjusting assembly further comprises a check ring, and the check ring is connected with the adjusting lock body and stretches into the adjusting groove to control the axial movement range of the connecting shaft.

Further, the second lock body assembly includes: the second lock body is directly or indirectly connected with the first lock body; the locking piece is movably arranged in the second lock body and is switched between a locking position extending out of the second lock body and an unlocking position retracting back into the second lock body, so that the second lock body assembly is switched between a locking state and an unlocking state; the first clutch piece is in driving connection with the rotating part, is movably arranged in the second lock body and can be combined with or separated from the locking piece, and when the first clutch piece is combined with the locking piece, the rotating part drives the locking piece to switch between a locking position and an unlocking position through the first clutch piece; and when the third clutch piece is combined with the locking piece, the third lock body assembly drives the locking piece to switch between a locking position and an unlocking position through the third clutch piece.

Further, the first clutch member and the third clutch member have movements along the axial direction of the mortise lock, and synchronously move along the axial direction of the mortise lock, the first clutch member and the third clutch member have independent relative rotations, and when the first clutch member is separated from the locking member, the third clutch member is combined with the locking member, and when the first clutch member is combined with the locking member, the third clutch member is separated from the locking member.

Further, the second lock body assembly further includes: the rotating component is in driving connection with the first clutch component through the first intermediate shaft; the clutch reset piece is arranged between the first intermediate shaft and the first clutch piece, two ends of the clutch reset piece are respectively abutted with the first intermediate shaft and the first clutch piece, and the clutch reset piece provides movement for the first clutch piece to a position combined with the locking piece.

Further, the second lock body assembly further includes: the third intermediate shaft is arranged in the second lock body in a penetrating way; the shifting block is arranged in the second lock body and sleeved on the third intermediate shaft, the shifting block is in driving connection with the third clutch piece, the third intermediate shaft moves axially relative to the shifting block to drive the third clutch piece to be combined with the locking piece, the third intermediate shaft drives the shifting block to synchronously rotate, and the shifting block drives the third clutch piece to rotate to drive the locking piece to rotate.

Further, the third lock body assembly includes: a third lock body; the third rotating shaft is rotatably and axially movably arranged in the third lock body, is in driving connection with the third clutch piece and drives the third clutch piece to be combined with the locking piece and rotate.

By adopting the technical scheme, the rotating part is in driving connection with the second lock body assembly, and the locking assembly and the second lock body assembly are not in driving connection, so that the torsion of the second lock body assembly is only transmitted to the rotating part and not transmitted to the locking assembly, the influence of the torsion of the second lock body assembly on the locking assembly is avoided, the locking assembly mainly plays a role of locking the rotating part, when the first lock body assembly is locked, the locking end of the locking assembly extends into the first lock body by the rotating part, the rotating part cannot freely rotate, the first lock body assembly is kept locked, the second lock body assembly cannot be driven to unlock by the first lock body assembly, when the second lock body assembly is required to be unlocked by the first lock body assembly, the locking end of the locking assembly is firstly unlocked by using an unlocking key, the first lock body can be withdrawn, the rotating part can freely rotate, the rotating part is rotated by the manual rotation operation end of a user, the rotating part drives the second lock body assembly to change the state, the second lock body assembly is enabled to be switched to the unlocking state, and the unlocking of the second lock body assembly is enabled to be unlocked by the first lock body assembly. The above-mentioned setting mode has avoided the locking subassembly to receive great torsion, has guaranteed that the locking subassembly reliably works steadily to first lock body subassembly, second lock body subassembly and third lock body subassembly are the modularized design, be convenient for equipment and on-the-spot installation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic structural view of a mortise lock of the present invention;

FIG. 2 illustrates an exploded view of a first lock body assembly of the mortice lock of FIG. 1;

FIG. 3 shows a schematic view of the mortise lock of FIG. 1 in a locked configuration;

FIG. 4 is a schematic view of the mortice lock of FIG. 1 shown unlocked by a first lock body assembly;

FIG. 5 is a schematic view of the mortice lock of FIG. 1 shown unlocked by a third lock body assembly; and

fig. 6 shows a schematic view of the mortice lock of fig. 1 without the adjustment assembly.

Wherein the above figures include the following reference numerals:

10. a first lock body assembly; 11. a first lock body; 111. a connection hole; 12. a rotating member; 121. an operation end; 122. a via hole; 13. a latch assembly; 131. a lock core; 132. a transmission shaft; 1321. a protruding portion; 133. locking pin; 134. a latch pin reset member; 135. a lock core sleeve; 136. a lock cylinder sleeve resetting piece; 137. a wireless chip; 138. a dust-proof assembly; 14. a hand feel component; 141. a steel ball; 142. a steel ball resetting piece; 20. a second lock body assembly; 21. a second lock body; 22. a latch; 23. a first clutch member; 24. a third clutch member; 25. a first intermediate shaft; 26. a clutch reset member; 27. a third intermediate shaft; 28. a shifting block; 30. a third lock body assembly; 31. a third lock body; 32. a third rotating shaft; 33. a knob; 40. an adjustment assembly; 41. adjusting the lock body; 42. and a connecting shaft.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

The invention provides a mortise lock, which aims to solve the problem that a lock cylinder of the mortise lock in the prior art bears larger torque.

1-5, a mortice lock includes a first lock body assembly 10, a second lock body assembly 20 and a third lock body assembly 30 which are connected in sequence, wherein the first lock body assembly 10 and the third lock body assembly 30 are in driving connection with the second lock body assembly 20 and can control the second lock body assembly 20 to switch between a locking state and an unlocking state, the first lock body assembly 10 comprises a first lock body 11, a rotating part 12 and a locking assembly 13, the rotating part 12 is rotatably arranged in the first lock body 11 and provided with an operating end 121 extending out of the first lock body 11, and the rotating part 12 is in driving connection with the second lock body assembly 20 and can control the second lock body assembly 20 to switch between the locking state and the unlocking state; the locking assembly 13 is disposed within the rotational member 12, and a locking end of the locking assembly 13 is capable of extending into or out of the first lock body 11 and obstructing or avoiding relative rotation between the rotational member 12 and the first lock body 11 to lock or unlock the first lock body assembly 10.

In this embodiment, by providing the rotating member 12, the rotating member 12 is in driving connection with the second lock body assembly 20, and there is no driving connection relationship between the locking assembly 13 and the second lock body assembly 20, in this way, the torque of the second lock body assembly 20 is only transmitted to the rotating member 12, but not to the locking assembly 13, thereby avoiding the influence of the torque of the second lock body assembly 20 on the locking assembly 13, the locking assembly 13 mainly plays the role of locking the rotating member 12, when the first lock body assembly 10 is locked, as shown in fig. 3, the locking end of the locking assembly 13 extends into the first lock body 11 from the rotating member 12, so that the rotating member 12 cannot rotate freely, and the first lock body assembly 10 cannot be unlocked by driving the second lock body assembly 20 through the first lock body assembly 10, when the second lock body assembly 20 needs to be unlocked through the first lock body assembly 10, as shown in fig. 4, the locking end of the locking assembly 13 is firstly used to unlock the first lock body 11, the rotating member 12 can rotate freely, and the second lock body assembly 20 is unlocked through the rotating member 12 driven by the user, thereby changing the state of the first lock body assembly, and the lock body assembly 20 is unlocked by switching the rotating member 12. The arrangement mode avoids the large torsion force of the locking assembly 13, ensures that the locking assembly 13 works reliably and stably, and the first lock body assembly 10, the second lock body assembly 20 and the third lock body assembly 30 are of modularized design, so that the assembly and the field installation are convenient.

The mortise lock of this embodiment is mainly applied to a door lock, and when installed, the first lock body assembly 10 is installed toward the outside of the door, and the third lock body assembly 30 is installed toward the inside of the door. Of course, it can also be applied in other similar scenarios.

As shown in fig. 2 to 5, the latch assembly 13 includes a lock cylinder 131, a transmission shaft 132, and at least one latch pin 133, the transmission shaft 132 being drivingly connected to an output end of the lock cylinder 131; the locking pin 133 has a locking end, the driving shaft 132 has a protrusion 1321, and when the driving shaft 132 is rotated by the lock cylinder 131, the protrusion 1321 presses the locking pin 133 to withdraw the locking pin 133 from the first lock body 11.

Specifically, the end face of the rotating member 12 far away from the second lock body assembly 20 is provided with a mounting hole, the lock cylinder 131 is mounted in the mounting hole, the end face of the lock cylinder 131 with an unlocking hole is exposed out of the mounting hole, one end of the lock cylinder 131 extending into the mounting hole is the output end of the lock cylinder 131, one end of the transmission shaft 132 is connected with the output end of the lock cylinder 131, the other end of the transmission shaft 132 is provided with a protruding portion 1321, the protruding portion 1321 is used for poking the locking pin 133 to enable the locking pin 133 to withdraw from the first lock body 11, the two locking pins 133 in the embodiment are provided with two through holes, the two locking pins 133 penetrate through the through holes, and the two locking pins 133 can extend into the first lock body 11, correspondingly, the protruding portions 1321 are also provided with two, the two protruding portions 1321 respectively correspond to the two locking pins 133, after the lock cylinder 131 is unlocked, the lock cylinder 131 is driven by the unlocking key 131 to rotate, the transmission shaft 132 is driven by the lock cylinder 132, and the two protruding portions 1321 respectively squeeze the two locking pins 133, so that the two locking pins 133 withdraw from the first lock body 11 to realize synchronous rotation of the locking member 11. Of course, only one locking pin 133 may be provided, or more locking pins 133 may be provided, so long as it is ensured that all locking pins 133 can be driven to withdraw from the first lock body 11 at the same time when the transmission shaft 132 rotates.

In this embodiment, the latch assembly 13 further includes a latch pin reset member 134, and the latch pin reset member 134 is preferably a spring, and both ends of the latch pin reset member 134 respectively abut against the two latch pins 133 and provide reset force to the two latch pins 133 extending into the first lock body 11. When the protruding portion 1321 does not press the locking pin 133 any more, the two locking pins 133 can simultaneously extend into the first lock body 11 under the action of the locking pin resetting piece 134, so as to realize synchronous locking.

In this embodiment, the locking assembly 13 further includes a cylinder jacket 135 and a cylinder jacket resetting member 136, the cylinder jacket 135 being sleeved outside the cylinder 131, the cylinder jacket 135 and the cylinder 131 having a movement in the axial direction of the rotary member 12 and being capable of switching between a position where the rotary member 12 is extended and a position where the rotary member 12 is retracted, the cylinder jacket 135 being retracted into the rotary member 12 when the locking end is extended into the first lock body 11, the locking assembly 13 being embedded in the rotary member 12, the cylinder jacket 135 being extended out of the rotary member 12 when the cylinder jacket 135 is retracted from the first lock body 11, a portion of the locking assembly 13 being extended out of the operating end, as shown in fig. 3 and 4; the lock cylinder sleeve restoring member 136 is also preferably a spring, and both ends of the lock cylinder sleeve restoring member 136 respectively abut against the lock cylinder sleeve 135 and the rotary member 12, and provide restoring force to the lock cylinder sleeve 135 and the lock cylinder 131 extending out of the rotary member 12. The setting of lock core cover 135 is convenient for the installation of lock core 131 on the one hand, can provide certain protection for lock core 131, and on the other hand provides the butt position for lock core cover return 136, guarantees that the power of lock core cover return 136 can be stable to be acted on lock core 131. When the first lock body assembly 10 is locked, since the locking pin 133 is extended into the first lock body 11, the locking pin 133 blocks the axial movement of the cylinder jacket 135 and the cylinder 131 while blocking the rotation of the rotating member 12, so that the cylinder jacket 135 and the cylinder 131 are completely accommodated in the mounting hole of the rotating member 12 without being extended from the mounting hole; when the first lock body assembly 10 is unlocked, the locking pin 133 unlocks the rotating member 12 and simultaneously unlocks the axial movement of the lock cylinder sleeve 135 and the lock cylinder 131, and the lock cylinder sleeve 135 and the lock cylinder 131 axially move under the action of the lock cylinder sleeve resetting member 136 so that a part of the lock cylinder sleeve 135 and the lock cylinder 131 extend out of the mounting hole and are exposed out of the operating end, thereby facilitating the user to identify the state of the first lock body assembly 10, and when the lock cylinder 131 extends out of the mounting hole, the locking end of the locking pin 133 and the locking hole formed in the first lock body 11 are dislocated, so that even if the unlocking key is pulled out at this time, the first lock body assembly 10 can still be unlocked without being switched to be locked, and the condition that the inner pin of the lock cylinder is forcedly rotated by one pin position when the unlocking key is pulled out is avoided; when the first lock body assembly 10 needs to be locked again, only the lock cylinder 131 and the lock cylinder sleeve 135 need to be pressed, so that the lock cylinder 131 and the lock cylinder sleeve 135 stretch into the rotating part 12 again, the locking end is aligned with the locking hole on the first lock body 11 again, and the locking pin 133 stretches into the first lock body 11 again under the action of the locking pin resetting piece 134, so that resetting is realized.

Optionally, the transmission shaft 132 further has a limiting portion, and the lock cylinder sleeve 135 has a limiting boss matched with the limiting portion, where the limiting portion can limit the transmission shaft 132 to rotate within a certain angle range, so as to control the rotation range of the transmission shaft 132.

The lock cylinder sleeve 135 of the present embodiment not only covers the entire lock cylinder 131, but also extends to the position where the locking pin 133 is located, that is, the lock cylinder sleeve 135 is also provided in the section where the locking pin 133 is provided on the rotating member 12, as shown in fig. 2 and 3, and correspondingly, holes for the locking pin 133 and the locking pin resetting member 134 to pass through are also provided on the lock cylinder sleeve 135 in the radial direction, so as to ensure the installation of the locking pin 133 and the locking pin resetting member 134.

It should be noted that, the lock cylinder sleeve 135 and the outer shell portion of the lock cylinder 131 rotate synchronously with the rotating member 12, that is, except for the unlocking key inserted into the lock cylinder 131 to rotate and unlock, other portions will not rotate when the rotating member 12 does not rotate, after the lock cylinder 131 is unlocked, the lock cylinder 131 and the lock cylinder sleeve 135 extend out of the end face of the rotating member 12, at this time, the rotating member 12 rotates the rotating member 12, the lock cylinder 131, the lock cylinder sleeve 135 and the locking pin 133 together, and during resetting, the rotating member 12 needs to be rotated back to the original position before the lock cylinder 131 is pressed for resetting.

As shown in fig. 2, the rotating member 12 is provided with a through hole 122 through which the locking pin 133 passes, and the through hole 122 extends along the axial direction of the rotating member 12 by a predetermined length, the first lock body 11 is provided with a locking hole through which the locking pin 133 passes, the locking pin 133 passes through the through hole 122 and then extends into the locking hole to lock the first lock body assembly 10, the through hole 122 is preferably provided with a kidney-shaped hole, and the locking hole on the first lock body 11 and the hole on the lock cylinder sleeve 135 only need to be provided with a round hole with a diameter slightly larger than that of the locking pin 133, so that when the first lock body assembly 10 is unlocked, the locking pin 133 only needs to completely withdraw from the first lock body 11 and does not need to completely retract into the lock cylinder sleeve 135, and when the lock cylinder 131 and the lock cylinder sleeve 135 move along the length direction of the through hole 122 in the axial direction of the rotating member 12, the locking end of the locking pin 133 can move along the length direction of the through hole 122, thereby realizing axial movement after the lock cylinder 131 and the lock cylinder sleeve 135 are unlocked.

Optionally, the locking assembly 13 further comprises a wireless chip 137, the wireless chip 137 being matched to an unlocking key for the unlocking key to identify the identity of the mortice lock.

Optionally, the locking assembly 13 further includes a dust-proof assembly 138, and the dust-proof assembly 138 is openably and closably disposed at the unlocking hole of the locking assembly 13, so as to prevent dust from entering the lock cylinder 131, and prolong the service life of the lock cylinder 131.

As shown in fig. 2, the first lock body assembly 10 further includes a handle assembly 14, the handle assembly 14 being disposed between the first lock body 11 and the rotating member 12 and extending into the first lock body 11 when the rotating member 12 is reset into place. The hand feeling component 14 comprises a steel ball 141 and a steel ball reset piece 142, the steel ball 141 is positioned between the rotating component 12 and the first lock body 11, a small part of the steel ball 141 can extend into the first lock body 11, the steel ball reset piece 142 is abutted with the steel ball 141, and a reset force extending into the first lock body 11 is provided for the steel ball 141. Because the steel ball 141 is spherical, when the rotation part 12 is driven by the application of force, the first lock body 11 can squeeze the steel ball 141, so that the steel ball 141 exits the first lock body 11, the steel ball 141 does not influence the normal rotation of the rotation part 12 and does not play a locking role, when the rotation part 12 is reset, the rotation part 12 is reversed, and when the rotation part 12 rotates in place, the steel ball 141 stretches into the first lock body 11 again under the action of the steel ball reset piece 142, so that a user can generate a certain hand feeling, and the user can conveniently recognize that the rotation part 12 rotates in place.

In this embodiment, the first lock body 11 has a connection hole 111 for connecting with the second lock body assembly 20, and the first lock body assembly 10 and the second lock body assembly 20 are connected by means of screw connection, and similarly, the second lock body assembly 20 and the third lock body assembly 30 may also be connected by means of such connection, so as to achieve rapid assembly. Considering that the connection hole 111 and the screw are exposed, the maximum diameter of the operation end 121 of the rotation member 12 is larger than the distance between the connection hole 111 and the center line of the rotation member 12, and when the first lock body assembly 10 is locked, the operation end 121 of the rotation member 12 faces the connection hole 111, thereby shielding the connection hole 111, so that the first lock body assembly 10 cannot be detached from the outside when locked, and only the rotation member 12 can be detached after unlocking.

The operating end 121 of the rotating member 12 of the present embodiment is provided in a flat shape and is large in size so as to facilitate the user's operation of applying force.

In this embodiment, the mortise lock further includes at least one adjusting component 40, at least one adjusting component 40 is disposed between the first lock body component 10 and the second lock body component 20, and/or between the second lock body component 20 and the third lock body component 30, and the adjusting component 40 can adjust the installation distance between the first lock body component 10 and the second lock body component 20, and/or between the second lock body component 20 and the third lock body component 30, so that the overall length of the mortise lock can be correspondingly changed according to the thickness of the door, and the adaptability of the mortise lock is improved. For example, the mortise lock in fig. 1 is a manner in which two adjusting assemblies 40 are disposed on two sides of the second lock body assembly 20; the mortise lock of fig. 6 is provided without the adjustment assembly 40.

Specifically, the adjusting assembly 40 includes an adjusting lock 41 and a connecting shaft 42, and the adjusting lock 41 is provided with a through hole similar to the connecting hole 111, so that the adjusting assembly 40 is connected with the first lock assembly 10, the second lock assembly 20 and the third lock assembly 30 and each adjusting assembly 40 by screws, thereby realizing rapid assembly. The connecting shaft 42 is movably arranged in the adjusting lock body 41, and the connecting shaft 42 can rotate and axially move in the adjusting lock body 41, so that the connecting requirement of the first lock body assembly 10 and the third lock body assembly 30 is met, and the first lock body assembly 10 and the second lock body assembly 20 and/or the second lock body assembly 20 and the third lock body assembly 30 are/is in driving connection through the connecting shaft 42.

Optionally, an adjusting groove is formed on the connecting shaft 42, and the adjusting assembly 40 further includes a retainer ring fixedly connected with the adjusting lock body 41 and extending into the adjusting groove to control the axial movement range of the connecting shaft 42.

As shown in fig. 3 to 5, the second lock body assembly 20 includes a second lock body 21, a locking member 22, a first clutch member 23 drivingly connected to the rotating member 12, and a third clutch member 24 drivingly connected to the third lock body assembly 30, and the second lock body 21 is directly or indirectly connected to the first lock body 11; the lock 22 is rotatably provided in the second lock body 21 and is switched between a locked position where the second lock body 21 is extended and an unlocked position where the second lock body 21 is retracted, so that the second lock body assembly 20 is switched between a locked state and an unlocked state; the first clutch piece 23 is movably arranged in the second lock body 21 and can be combined with or separated from the locking piece 22, and when the first clutch piece 23 is combined with the locking piece 22, the rotating part 12 drives the locking piece 22 to switch between a locking position and an unlocking position through the first clutch piece 23; the third clutch member 24 is movably disposed in the second lock body 21 and is capable of being combined with or separated from the locking member 22, and when the third clutch member 24 is combined with the locking member 22, the third lock body assembly 30 drives the locking member 22 to switch between the locking position and the unlocking position through the third clutch member 24. Thus, the first lock assembly 10 controls locking and unlocking of the latch 22 by the first clutch 23, and the third lock assembly 30 controls locking and unlocking of the latch 22 by the third clutch 24. It should be noted that the first and third clutch members 23 and 24 are named for convenience in distinguishing the mating relationship, that is, the first clutch member 23 mates with the first lock assembly 10, and the third clutch member 24 mates with the third lock assembly 30, so that the second clutch member is not named.

The first clutch member 23 and the third clutch member 24 of this embodiment are not completely independent two components, but have a certain relationship, the first clutch member 23 and the third clutch member 24 have movement along the axial direction of the mortise lock, and the end surfaces of the first clutch member 23 and the third clutch member 24 close to each other abut against each other, so that the first clutch member 23 and the third clutch member 24 move synchronously along the axial direction of the mortise lock, and the relative rotation between the first clutch member 23 and the third clutch member 24 is independent from each other, as shown in fig. 4 and 5, when the first clutch member 23 is separated from the locking member 22, the third clutch member 24 is combined with the locking member 22, and when the first clutch member 23 is combined with the locking member 22, the third clutch member 24 is separated from the locking member 22. By the arrangement, the first lock body assembly 10 and the third lock body assembly 30 can be independent relatively, and the influence on the other by operating one of the first lock body assembly and the third lock body assembly is avoided.

In this embodiment, the second lock body assembly 20 further includes a first intermediate shaft 25 and a clutch reset member 26, where the rotating member 12 is in driving connection with the first clutch member 23 through the first intermediate shaft 25, the clutch reset member 26 is preferably a spring, the clutch reset member 26 is disposed between the first intermediate shaft 25 and the first clutch member 23, and two ends of the clutch reset member are respectively abutted with the first intermediate shaft 25 and the first clutch member 23, and provide a movement to the first clutch member 23 in a position combined with the locking member 22, so that the arrangement is that the rotating member 12 of the embodiment does not move in an axial direction, and cannot change the clutch member combined with the locking member 22, and cannot operate on the inner side of the door at the same time when the outer side of the door is unlocked, so that the lock core is unlocked only through the first lock body assembly 10, if the third clutch member 24 is abutted with the locking member 22, the requirement of unlocking the lock core is not met, and therefore, when the first clutch member 23 is abutted with the locking member 22 is required, the lock core is kept in abutment with the locking member, and thus the first clutch member 23 can not be unlocked by the first lock body assembly 30, and whether the requirement of unlocking the lock assembly is met or not can be met, or not, and the lock assembly is unlocked by the first lock member.

In this embodiment, the second lock body assembly 20 further includes a third intermediate shaft 27 and a dial block 28, where the third intermediate shaft 27 is disposed in the second lock body 21 in a penetrating manner and can abut against an end surface of the third clutch member 24; the shifting block 28 is arranged in the second lock body 21 and sleeved on the third intermediate shaft 27, the shifting block 28 is in driving connection with the third clutch piece 24, the shifting block 28 is not driven to move by the axial movement of the third intermediate shaft 27, the shifting block 28 is driven to synchronously rotate by the rotation of the third intermediate shaft 27, that is, the third intermediate shaft 27 has axial movement relative to the shifting block 28, so that the third clutch piece 24 is driven to be combined with the locking piece 22 to realize the clutch effect, the third intermediate shaft 27 can also drive the shifting block 28 to synchronously rotate, and the third clutch piece 24 is driven to rotate by the shifting block 28, so that the locking piece 22 is driven to rotate to realize the driving effect. In addition, the third intermediate shaft 27 is also a stepped shaft, which is also formed with a stepped surface that abuts against the dial block 28 when the third intermediate shaft 27 is axially moved by the third lock body assembly 30, thereby restricting the movement range of the third clutch member 24 to avoid over-movement. Similar to the naming of the first clutch member 23 and the third clutch member 24, the naming of the first intermediate shaft 25 and the third intermediate shaft 27 is also merely for convenience in distinguishing mating relationships.

In the present embodiment, the third lock assembly 30 includes a third lock body 31 and a third rotating shaft 32, the third rotating shaft 32 is rotatably and axially movably disposed in the third lock body 31, and the third rotating shaft 32 is drivingly connected with the third clutch member 24 and drives the third clutch member 24 to be combined with the locking member 22 and the third clutch member 24 to rotate. Because the third lock body assembly 30 is mounted inside the door, it generally does not require locking. When the mortise lock needs to be unlocked through the third lock body assembly 30, as shown in fig. 5, the third rotating shaft 32 is pressed first, so that the first clutch member 23 is separated from the locking member 22, the third clutch member 24 is combined with the locking member 22, and then the third rotating shaft 32 is rotated, and the third rotating shaft 32 can drive the locking member 22 to rotate to the unlocking position through the third clutch member 24 to unlock the mortise lock. When the third rotating shaft 32 is not pressed any more, the restoring force of the clutch restoring piece 26 acts on the first clutch piece 23, so that the third clutch piece 24 is separated from the locking piece 22, the first clutch piece 23 is combined with the locking piece 22 again, and the third clutch piece 24 moves axially and drives the third rotating shaft 32 to move axially reversely to realize restoring.

In addition, an oblate knob 33 may be mounted on the third rotating shaft 32, and the knob 33 may be integrally provided or may be separately provided so as to operate the third rotating shaft 32.

It should be noted that, in the above embodiments, a plurality refers to at least two.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

1. the problem that the lock core of the mortise lock in the prior art bears larger torque is solved;

2. the torsion of the second lock body assembly is only transmitted to the rotating part and not transmitted to the locking assembly, so that the influence of the torsion of the second lock body assembly on the locking assembly is avoided;

3. the first lock body assembly, the second lock body assembly, the third lock body assembly and the adjusting assembly are all in modularized design, so that the assembly and the field installation are convenient;

4. the state of the locking assembly is convenient to identify;

5. when the locking component is reset, an unlocking key is not required, and the operation can be completed only by pressing the lock core sleeve;

6. the adjusting component can be installed in a matching mode according to door thickness, can be suitable for door lock assembly of different door thicknesses, and is high in adaptability.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (17)

1. The utility model provides a lock with lock pin, its characterized in that includes first lock body subassembly (10), second lock body subassembly (20) and third lock body subassembly (30) that connect in order, just first lock body subassembly (10) with third lock body subassembly (30) all with second lock body subassembly (20) drive connection, and all can control second lock body subassembly (20) switch between locking state and unlocking state, first lock body subassembly (10) include:

a first lock body (11);

a rotating member (12), the rotating member (12) being rotatably arranged in the first lock body (11) and having an operating end (121) extending out of the first lock body (11), the rotating member (12) being in driving connection with the second lock body assembly (20) and being capable of controlling the second lock body assembly (20) to switch between the locked state and the unlocked state;

the locking assembly (13) is arranged in the rotating component (12), and a locking end of the locking assembly (13) can extend into or withdraw from the first lock body (11) and block or avoid relative rotation between the rotating component (12) and the first lock body (11) so as to lock or unlock the first lock body assembly (10).

2. A mortice lock according to claim 1 wherein the locking assembly (13) includes:

a lock cylinder (131);

the transmission shaft (132), the said transmission shaft (132) is connected with output end drive of the said lock core (131);

at least one locking pin (133), wherein the locking pin (133) is provided with the locking end, the transmission shaft (132) is provided with a protruding part (1321), and when the transmission shaft (132) is driven to rotate by the lock cylinder (131), the protruding part (1321) presses the locking pin (133) so as to enable the locking pin (133) to withdraw from the first lock body (11).

3. The mortice lock of claim 2 wherein the locking assembly (13) further includes a locking pin return (134), the locking pin return (134) abutting the locking pin (133) and providing a return force to the locking pin (133) extending into the first lock body (11).

4. The mortice lock of claim 2, wherein the locking assembly (13) further comprises:

a lock cylinder sleeve (135), wherein the lock cylinder sleeve (135) is sleeved outside the lock cylinder (131), the lock cylinder sleeve (135) and the lock cylinder (131) have movements along the axial direction of the rotating component (12) and can be switched between a position where the rotating component (12) extends and a position where the rotating component (12) is retracted, when the locking end extends into the first lock body (11), the lock cylinder sleeve (135) retracts into the rotating component (12), the locking assembly (13) is embedded in the rotating component (12), when the lock cylinder sleeve (135) exits from the first lock body (11), the lock cylinder sleeve (135) extends out of the rotating component (12), and a part of the locking assembly (13) extends out of the operating end;

the lock cylinder sleeve reset piece (136), two ends of the lock cylinder sleeve reset piece (136) are respectively abutted with the lock cylinder sleeve (135) and the rotating part (12), and provide reset force for the lock cylinder sleeve (135) and the lock cylinder (131) to extend out of the rotating part (12).

5. The mortice lock of claim 4 wherein the rotary member (12) is provided with a through hole (122) through which the locking pin (133) passes, the first lock body (11) is provided with a locking hole through which the locking pin (133) passes, the locking pin (133) passes through the through hole (122) and then extends into the locking hole to lock the first lock body assembly (10), and the through hole (122) extends a predetermined length in an axial direction of the rotary member (12), and when the lock cylinder (131) and the lock cylinder sleeve (135) move in the axial direction of the rotary member (12), a locking end of the locking pin (133) moves in the through hole (122) in a length direction of the through hole (122).

6. The mortice lock of claim 1 wherein the locking assembly (13) further includes a wireless code chip (137), the wireless code chip (137) matching the unlocking key.

7. The mortise lock according to claim 1, characterized in that the locking assembly (13) further comprises a dust-proof assembly (138), the dust-proof assembly (138) being openably and closably arranged at an unlocking hole of the locking assembly (13).

8. The mortice lock of claim 1 wherein the first lock body assembly (10) further includes a handle assembly (14), the handle assembly (14) being disposed between the first lock body (11) and the rotary member (12) and extending into the first lock body (11) when the rotary member (12) is reset in place.

9. A mortice lock according to claim 1 wherein the first lock body (11) has a connection aperture (111) for connection with the second lock body assembly (20), and the rotational member (12) obstructs the connection aperture (111) when the first lock body assembly (10) is locked.

10. The mortice lock according to claim 1, characterized in that the mortice lock further comprises at least one adjustment assembly (40), at least one adjustment assembly (40) being provided between the first lock body assembly (10) and the second lock body assembly (20) and/or between the second lock body assembly (20) and the third lock body assembly (30) to change the distance between the first lock body assembly (10) and the second lock body assembly (20) and/or between the second lock body assembly (20) and the third lock body assembly (30).

11. The mortice lock of claim 10, wherein the adjustment assembly (40) includes:

an adjustment lock body (41);

the connecting shaft (42) is movably arranged in the adjusting lock body (41), and the first lock body assembly (10) and the second lock body assembly (20) and/or the second lock body assembly (20) and the third lock body assembly (30) are/is connected in a driving way through the connecting shaft (42).

12. The mortice lock of claim 11 wherein the connecting shaft (42) is provided with an adjustment slot, the adjustment assembly (40) further including a collar, the collar being connected to the adjustment lock body (41) and extending into the adjustment slot to control the range of axial movement of the connecting shaft (42).

13. The mortice lock of any one of claims 1 to 12 wherein the second lock body assembly (20) includes:

a second lock body (21), the second lock body (21) is directly or indirectly connected with the first lock body (11);

a blocking member (22), the blocking member (22) being movably disposed within the second lock body (21) and being switched between a blocking position in which the second lock body (21) is extended and an unlocking position in which the second lock body (21) is retracted, so that the second lock body assembly (20) is switched between the blocking state and the unlocking state;

a first clutch member (23) in driving connection with the rotating member (12), wherein the first clutch member (23) is movably arranged in the second lock body (21) and can be combined with or separated from the locking member (22), and when the first clutch member (23) is combined with the locking member (22), the rotating member (12) drives the locking member (22) to switch between the locking position and the unlocking position through the first clutch member (23);

the third clutch piece (24) is in driving connection with the third lock body assembly (30), the third clutch piece (24) is movably arranged in the second lock body (21) and can be combined with or separated from the locking piece (22), and when the third clutch piece (24) is combined with the locking piece (22), the third lock body assembly (30) drives the locking piece (22) to switch between the locking position and the unlocking position through the third clutch piece (24).

14. A mortice lock according to claim 13 wherein the first clutch member (23) and the third clutch member (24) have a movement in the axial direction of the mortice lock and are in synchronous movement in the axial direction of the mortice lock, the first clutch member (23) and the third clutch member (24) have a relative rotation independent of each other, and the third clutch member (24) is coupled to the latch member (22) when the first clutch member (23) is decoupled from the latch member (22), and the third clutch member (24) is decoupled from the latch member (22) when the first clutch member (23) is coupled to the latch member (22).

15. The mortice lock of claim 13 wherein the second lock body assembly (20) further includes:

a first intermediate shaft (25), wherein the rotating component (12) is in driving connection with the first clutch (23) through the first intermediate shaft (25);

the clutch reset piece (26) is arranged between the first intermediate shaft (25) and the first clutch piece (23), two ends of the clutch reset piece are respectively abutted with the first intermediate shaft (25) and the first clutch piece (23), and the clutch reset piece (26) provides movement for the first clutch piece (23) to a position combined with the locking piece (22).

16. The mortice lock of claim 13 wherein the second lock body assembly (20) further includes:

a third intermediate shaft (27), wherein the third intermediate shaft (27) is arranged in the second lock body (21) in a penetrating way;

the shifting block (28), shifting block (28) are arranged in the second lock body (21) and are sleeved on the third intermediate shaft (27), the shifting block (28) is in driving connection with the third clutch piece (24), the third intermediate shaft (27) has axial movement relative to the shifting block (28) so as to drive the third clutch piece (24) to be combined with the locking piece (22), the third intermediate shaft (27) drives the shifting block (28) to synchronously rotate, and the shifting block (28) drives the third clutch piece (24) to rotate so as to drive the locking piece (22) to rotate.

17. The mortice lock of claim 13 wherein the third lock body assembly (30) includes:

a third lock body (31);

the third rotating shaft (32) is rotatably and axially movably arranged in the third lock body (31), the third rotating shaft (32) is in driving connection with the third clutch piece (24) and drives the third clutch piece (24) to be combined with the locking piece (22) and rotate the third clutch piece (24).