CN214835483U - Door lock - Google Patents

Abstract

A door lock is provided with a lock latch, a lock core, a lock bolt and a rotating piece, wherein the lock latch is provided with a top rotating piece, a clutch transmission set, a reduction gear set and a motor, when the reduction gear set is driven by the motor, the clutch transmission set is immediately driven to be linked with the lock bolt to move, when the lock core is manually driven to rotate and the top rotating piece is linked to rotate, the top rotating piece pushes the clutch transmission set to perform clutch action, so that the clutch transmission set only drives the lock bolt to move, and the door lock can be locked or unlocked.

Description

Door lock

Technical Field

The present invention relates to a door lock, and more particularly to a door lock with a clutch mechanism for converting an electric mode into a manual mode.

Background

According to, the door lock is mainly assembled on the door in a matching manner, the door lock has various aspects, the design of the general door lock is that the key is opened or closed from the outside of the door, the inside of the door is opened or closed in a rotating manner, in addition, the door lock with higher grade is designed into an electric mode, for example, the door lock is operated by the password or fingerprint from the outside of the door, the door lock with the electric mode is the technology disclosed in U.S. patent No. US 10364594B 2, however, the door lock with the electric mode cannot be operated due to a fault, so the design of the manual mode is required at the same time, but the structure of converting the electric mode into the manual mode is complicated at present, the assembly is not easy, and the manufacturing cost is higher, therefore, the inventor of the present invention develops the door lock with a simple structure aiming at the above defects, and further reduces the manufacturing cost.

Disclosure of Invention

Therefore, the present invention is directed to a door lock with a simple structure to reduce the manufacturing cost.

Therefore, the utility model discloses the lock has an enclosing cover, an inner cup with this enclosing cover montage, a hasp of locating between this inner cup and this enclosing cover, a lock heart that sets up between this enclosing cover and this hasp, a spring bolt that links with this hasp to and the rotatory piece of this interior cover is located to a pivot, wherein: the lock bolt is provided with a first lock casing, a second lock casing butted with the first lock casing, and a top rotating piece, a clutch transmission group, a reduction gear group and a motor which are arranged between the first lock casing and the second lock casing, wherein the top rotating piece is cylindrical and is pivoted on the first lock casing, one end surface of the top rotating piece protrudes to form two corresponding top abutting parts, simultaneously, both sides of the top rotating piece are respectively provided with a protruding wing, a through hole is axially penetrated through, the clutch transmission group comprises a linkage gear pivoted on the top rotating piece, a clutch gear pivoted on the second lock casing, and an elastic piece pressed between the clutch gear and the second lock casing, the inner ring surface of the linkage gear is provided with two first grooves arranged oppositely, and two second grooves which are opposite to the first grooves and are arranged oppositely, the first grooves are provided for the protruding wings to be correspondingly embedded, and allow the protruding wings to rotate in the corresponding first grooves by a proper angle, the clutch gear is axially adjacent to the linkage gear, two opposite corresponding caulking grooves are formed on the inner ring surface of the clutch gear, two opposite corresponding protruding keys are arranged on the end surface of the linkage gear in a protruding mode, the caulking grooves are used for the corresponding embedding of the abutting parts, the protruding keys are correspondingly embedded into the second grooves, each protruding key can rotate in each second groove by a proper angle, and the speed reduction gear set is meshed with the clutch gear and can be driven by the motor to drive the clutch gear to rotate; the lock core is provided with a key control part arranged in the outer cover and a rotating handle extending from the key control part, and the rotating handle penetrates through the through hole of the top rotating piece and can drive the top rotating piece to rotate; the lock tongue is provided with a rack meshed with the linkage gear and a tongue lock part extending from the rack, and the rack can be driven by the linkage gear to drive the tongue lock part to slide; the rotating piece is connected with the rotating handle, and the rotating handle can be driven to rotate when the rotating piece is rotated.

When the reduction gear set is driven by the motor, the clutch gear is immediately driven to rotate, the clutch gear drives the linkage gear to rotate through the convex key, and then the linkage gear moves in linkage with the rack and the tongue lock part, when the rotating handle is manually driven to rotate, the jacking piece rotates along with the rotating handle, the jacking part jacks the clutch gear to axially displace, the elastic piece is compressed, the convex key is separated from the second groove, and the jacking piece continuously rotates to enable the convex wing to drive the linkage gear to rotate, so that the rack and the tongue lock part are linked to move. The utility model discloses the lock lets this lock can switch smoothly at electronic mode and manual mode through the design of the separation and reunion transmission group of this hasp, however the simple structure of each component of this separation and reunion transmission group for the holistic simple structure of this lock is also comparatively simple and easy in the equipment, and then save material cost and assembly cost.

In an embodiment of the present invention, an outer screw portion is formed on the outer lid, and an inner screw portion is formed on the inner lid, the inner screw portion being capable of being screwed with the outer screw portion, so that the outer lid and the inner lid are relatively connected.

Drawings

FIG. 1 is a perspective view of a door lock in accordance with a preferred embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a preferred embodiment of the door lock of the present invention;

FIG. 3 is an exploded perspective view of a door lock in accordance with a preferred embodiment of the present invention;

fig. 4 is an exploded perspective view of the clutch transmission set, the reduction gear set and the latch of the door lock according to a preferred embodiment of the present invention;

fig. 5 is a front view of the clutch transmission set, the reduction gear set and the latch of the door lock according to the preferred embodiment of the present invention;

FIG. 6 is a side schematic view of FIG. 5;

FIG. 7 is a schematic diagram of the actions continued from FIG. 5;

FIG. 8 is a side schematic view of FIG. 7;

FIG. 9 is a schematic diagram of the actions continued from FIG. 7;

FIG. 10 is a side schematic view of FIG. 9;

FIG. 11 is a schematic diagram of the actions continued from FIG. 9;

fig. 12 is a schematic diagram of the operation continued from fig. 11.

[ notation ] to show

1 door lock

11 outer cover

111 outer screw part

12 inner cap

121 internal screw part

13 lock core

131 key control part

132 rotating handle

14 bolt

141 rack

142 tongue lock part

15 rotating member

2 lock bolt

21 first bolt housing

211 pivoting ring

22 second bolt housing

221 adapting ring

3 top rotating piece

31 abutting part

32 protruding wing

33 through hole

4-clutch transmission set

41 interlocking gear

411 first groove

412 second groove

42 clutch gear

421 caulking groove

422 protruding key

43 elastic member

5 reduction gear set

6 Motor

7 tongue sheath

Detailed Description

Referring to fig. 1 to 6, a door lock according to a preferred embodiment of the present invention is capable of being locked or unlocked in an electric mode or a manual mode, and includes an outer cover 11, an inner cover 12 screwed with the outer cover 11, a latch 2 disposed between the inner cover 12 and the outer cover 11, a lock cylinder 13 disposed between the outer cover 11 and the latch 2, a latch bolt 14 connected with the latch 2, and a rotary member 15 pivoted to the inner cover 12, wherein an outer screw portion 111 is formed on the outer cover 11, an inner screw portion 121 is formed on the inner cover 12, and the inner screw portion 121 is screwed with the outer screw portion 111 to relatively assemble the outer cover 11 and the inner cover 12.

The latch 2 has a first casing 21, a second casing 22 butt jointed with the first casing 21, and a top rotating member 3, a clutch transmission group 4, a reduction gear group 5 and a motor 6 arranged between the first casing 21 and the second casing 22, the center of the first casing 21 forms a hollow pivot joint ring 211, the center of the second casing 22 also forms a hollow bearing ring 221, the top rotating member 3 is cylindrical and pivot-arranged in the pivot joint ring 211, one end surface thereof protrudes to form two corresponding top abutting parts 31, and a protruding wing 32 is respectively formed on two sides and axially penetrates through a through hole 33; the clutch transmission set 4 comprises a linking gear 41 pivoted on the top rotating member 3, a clutch gear 42 pivoted on the receiving ring 221, and an elastic member 43 sleeved on the receiving ring 221 and abutting between the clutch gear 42 and the second bolt housing 22, wherein the inner annular surface of the linking gear 41 is provided with two first grooves 411 arranged oppositely, and two second grooves 412 arranged oppositely and oppositely relative to the first grooves 411, the first grooves 411 are used for correspondingly embedding the protruding wings 32 and allowing the protruding wings 32 to rotate in the corresponding first grooves 411 by a proper angle, the clutch gear 42 is axially adjacent to the linking gear 41, the inner annular surface thereof is provided with two opposite corresponding embedding grooves 421, and two opposite corresponding protruding keys 422 are convexly arranged towards the end surface of the linking gear 41, the embedding grooves 421 are used for correspondingly embedding the top abutting part 31, the said protruding keys 422 are correspondingly inserted into the said second grooves 412, and each protruding key 422 can rotate in each second groove 412 by a proper angle, the speed reduction gear set 5 is composed of several gears with different sizes, which are respectively axially disposed on the first bolt housing 21 and the second bolt housing 22, and engaged with the clutch gear 42, and driven by the motor 6 to drive the clutch gear 42 to rotate.

The lock core 13 has a key control portion 131 disposed in the outer cover 11, and a rotation handle 132 extending from the key control portion 131, the rotation handle 132 can pass through the through hole 33 of the top rotation member 3 and can drive the top rotation member 3 to rotate, and the structural design between the key control portion 131 and the rotation handle 132 is a conventional technology (refer to taiwan patent application No. 091202818), which is not the characteristic of the present application, and therefore, it is not described herein again.

The lock tongue 14 is assembled inside a tongue sheath 7, and assembled on the door through the tongue sheath 7, the lock tongue 14 and the tongue sheath 7 are inserted between the first bolt housing 21 and the second bolt housing 22, and the connection structure is not the characteristics of the present case, and it is not repeated herein, the lock tongue 14 has a rack 141 engaged with the interlocking gear 41, and a tongue lock portion 142 extended from the rack 141, the rack 141 can be driven by the interlocking gear 41 to interlock the tongue lock portion 142 to slide relative to the tongue sheath 7, thereby forming a locked or unlocked state.

The rotating member 15 passes through the receiving ring 221 and is connected to the rotating handle 132, and when the rotating member 15 is rotated, the rotating handle 132 is driven to rotate, so as to drive the clutch transmission set 4, and it should be noted that the rotating handle 132 can rotate relative to the key control portion 131.

The electric locking process of the door lock 1 of the utility model is firstly carried out in the electric mode from the unlocked state of the figures 5 and 6, the clutch gear 42 is driven by the motor 6 through the reduction gear set 5 to rotate ninety degrees in the direction indicated by the arrow in fig. 5 to the position shown in fig. 7 and 8, however the process of rotating the clutch gear 42, the protruding key 422 is inserted into the second groove 412, and drives the linking gear 41 to rotate and the rack 141 to move, when the clutch gear 42 rotates, the rotation of the top rotating member 3 is linked by the engagement between the caulking groove 421 and the abutting portion 31, and the rotation of the rotating handle 132 and the rotating member 15 is followed, if the electric unlocking is required, the motor 6 drives the reduction gear set 5 to reversely couple the clutch gear 42 and the coupling gear 41.

When the door lock 1 is in the locked state shown in fig. 7, if a key is inserted into the key control portion 131 from the outside, so as to make the rotating handle 132 drive the rotating member 3 to rotate counterclockwise to the position shown in fig. 9, in this process, the protruding wing 32 of the rotating member 3 moves from one end of the first groove 411 to the other end without linking the linking gear 41, at the same time, the abutting portion 31 of the rotating member 3 slides in the corresponding caulking groove 421, thereby gradually pushing the clutch gear 42 to retreat, and as shown in fig. 10, the elastic member 43 is compressed until the abutting portion 31 disengages from the caulking groove 421 and abuts against the end surface of the clutch gear 42, at this time, the protruding key 422 of the clutch gear 42 disengages from the second groove 412, so that the clutch gear 42 completely disengages from the linking gear 41, and the linking gear 41 is no longer pulled by the clutch gear 42 and the reduction gear set 5, when the top rotating member 3 is rotated counterclockwise to the state shown in fig. 11, the protruding wing 32 of the top rotating member 3 drives the linking gear 41 to rotate, and further links the lock tongue 14 to the unlocking position, at this time, the operator rotates the rotating handle 132 to the position shown in fig. 12 to complete manual unlocking, and finally, the motor 6 is electrically controlled or the rotating member 15 drives the clutch gear 42 to rotate to the position where the caulking groove 421 corresponds to the top abutting portion 31, and the top abutting portion 31 is inserted into the caulking groove 421 through the pushing of the elastic member 43, so that the electric locking state can be recovered.

The utility model discloses lock 1 lets this lock 1 switch smoothly with manual mode in electronic mode through the design of the separation and reunion transmission group 4 of this hasp 2, however the simple structure of each component of this separation and reunion transmission group 4 for the holistic simple structure of this lock 1 is also comparatively simple and easy in the equipment, and then save material cost and assembly cost.

Claims (2)

1. A door lock is characterized in that the door lock is provided with an outer cover, an inner cover assembled with the outer cover, a lock bolt arranged between the inner cover and the outer cover, a lock core arranged between the outer cover and the lock bolt, a lock bolt connected with the lock bolt, and a rotating piece pivoted on the inner cover, wherein:

the lock bolt is provided with a first lock casing, a second lock casing butted with the first lock casing, a top rotating piece, a clutch transmission set, a reduction gear set and a motor, wherein the top rotating piece is arranged between the first lock casing and the second lock casing, the top rotating piece is cylindrical and is pivoted on the first lock casing, one end surface of the top rotating piece is protruded to form two corresponding top abutting parts, simultaneously, protruding wings are respectively formed at two sides and axially penetrate through a through hole, the clutch transmission set comprises a linkage gear pivoted on the top rotating piece, a clutch gear pivoted on the second lock casing and an elastic piece pressed between the clutch gear and the second lock casing, the inner ring surface of the linkage gear is provided with two first grooves arranged in opposite directions, and two second grooves which are staggered relative to the first grooves and are arranged in opposite directions, the first grooves are correspondingly embedded for the protruding wings, the clutch gear is axially adjacent to the linkage gear, two opposite corresponding caulking grooves are formed on the inner ring surface of the clutch gear, two opposite corresponding protruding keys are arranged on the end surface of the linkage gear in a protruding mode, the caulking grooves are used for enabling the abutting parts to be correspondingly embedded, the protruding keys are correspondingly embedded into the second grooves, each protruding key can rotate in each second groove by a proper angle, and the speed reduction gear set is meshed with the clutch gear and can be driven by the motor to drive the clutch gear to rotate;

the lock core is provided with a key control part arranged in the outer cover and a rotating handle extending from the key control part, and the rotating handle penetrates through the through hole of the top rotating piece and can drive the top rotating piece to rotate;

the lock tongue is provided with a rack meshed with the linkage gear and a tongue lock part extending from the rack, and the rack can be driven by the linkage gear to drive the tongue lock part to slide;

the rotating piece is connected with the rotating handle, and the rotating handle can be driven to rotate when the rotating piece is rotated;

when the reduction gear set is driven by the motor, the clutch gear is immediately driven to rotate, the clutch gear drives the linkage gear to rotate through the convex key, and then the linkage gear moves in linkage with the rack and the tongue lock part, when the rotating handle is manually driven to rotate, the jacking piece rotates along with the rotating handle, the jacking part jacks the clutch gear to axially displace, the elastic piece is compressed, the convex key is separated from the second groove, and the jacking piece continuously rotates to enable the convex wing to drive the linkage gear to rotate, so that the rack and the tongue lock part are linked to move.

2. The door lock of claim 1, wherein the outer cover has an outer screw portion formed thereon, and the inner cover has an inner screw portion formed thereon, the inner screw portion being capable of being screw-coupled with the outer screw portion to allow the outer cover and the inner cover to be relatively assembled.

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