CN214659404U - Clutch mechanism of door lock and door lock - Google Patents

Abstract

The utility model relates to a clutch mechanism of a door lock, which comprises a handle connecting seat, a torsional spring, a clutch rotor and a clutch pin, wherein the handle connecting seat comprises a disc main body and a handle connecting part, two symmetrical shifting blocks are arranged on the disc main body, and at least one of the shifting blocks is detachably installed; a rotating station is concavely arranged in the middle of the second surface of the disc main body, and a clutch hole is formed in the side wall of the rotating station; the clutch pin is slidably arranged on the disc main body; the clutch rotor comprises a rotating main body and two symmetrical extension arms, and a clutch gap is arranged in the rotating main body; the two extension arms are formed by extending outwards from the side wall of the rotating main body; the tail ends of the two extension arms are provided with reset deflector rods; two extending feet are utilized to respectively exert reset elastic force on the two shifting blocks and the two reset shifting rods so as to keep the driving handle connecting seat and the clutch rotor to be restored to the initial positions. The clutch has the advantages of simple structure, stable structure and convenient assembly and disassembly.

Description

Clutch mechanism of door lock and door lock

Technical Field

The utility model belongs to the technical field of the lock and specifically relates to a clutch mechanism and lock of lock are related to.

Background

In order to improve the anti-theft safety performance of the modern door lock, a clutch is arranged between the linkage of the front handle and the rear handle, so that various illegal door lock opening modes can be effectively prevented. In addition, in order to make the door lock be suitable for being installed on two door bodies with different door opening directions, a structural component capable of being installed in a reversing mode is arranged on the handle connecting component, so that the handle can be installed in the two installation directions.

However, the existing door lock with the clutch structure and the reversing installation structure has a complex structure; the number of combined parts is large, and the looseness is easy to occur; the disassembly and the assembly are troublesome, and the function loss or the structural damage caused by the installation error is easy to occur; when a user opens the door through the rear handle, the user also needs to press the clutch switch for a long time to enable the handle connecting seat and the clutch rotor to keep linkage, and the user can press the handle to open the door, so that the door opening operation is inconvenient; and the clutch rotor often has position deviation to cause unsmooth unlocking or can not be unlocked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a clutch mechanism and lock of lock, its clutch structure is comparatively simple, stable in structure, easy dismounting.

The purpose of the utility model is realized through the following technical scheme:

a clutch mechanism of door lock comprises a handle connecting seat, a torsion spring, a clutch rotor and a clutch pin,

the handle connecting seat comprises a disc main body and a handle connecting part, and the handle connecting part is arranged on the first surface of the disc main body; two symmetrical shifting blocks are arranged on the first surface of the disc main body and positioned on two sides of the handle connecting part, and at least one of the shifting blocks is detachably mounted;

a rotating station is concavely arranged in the middle of the second surface of the disc main body, and a clutch hole is formed in the side wall of the rotating station; the clutch pin is slidably arranged on the disc main body, and the first end of the clutch pin is telescopically inserted into the rotating station from the clutch hole by sliding the clutch pin;

the clutch rotor comprises a rotating main body and two symmetrical extension arms, and a clutch gap is formed in the rotating main body; the two extension arms are formed by extending outwards from the side wall of the rotating main body; the tail ends of the two extension arms are provided with reset deflector rods;

the clutch rotor is rotatably arranged in the rotating station;

two tail ends of the torsion spring extend to form two symmetrical extending feet; after the torsional spring stores elastic potential energy, the two shifting blocks and/or the two reset shifting rods are used for respectively clamping and limiting the two extending feet, so that the torsional spring keeps deforming and stores the elastic potential energy;

the two reset deflector rods and the two deflector blocks are respectively positioned at the same side of the two extending pins; the two extending pins are used for applying reset elasticity to the two shifting blocks and the two reset shifting rods respectively so as to keep and drive the handle connecting seat and the clutch rotor to return to the initial positions;

when the clutch gap is overlapped with the clutch hole, the first end of the clutch pin can be inserted into the rotating station from the clutch hole and deeply enters the clutch gap, so that the handle connecting seat is in linkage connection with the clutch rotor; when the clutch pin is withdrawn from the rotating station, the handle connecting seat and the clutch rotor are separated from linkage.

Furthermore, in the scheme, the first step of the method,

the two extending arms are respectively provided with a through hole, and the positions of the two through holes respectively correspond to the two shifting blocks.

Furthermore, in the scheme, the first step of the method,

the inner side wall of the rotating station is convexly provided with a back locking shifting block;

a reverse locking stop block is arranged on the rotating main body of the clutch rotor and positioned on one side of the reset deflector rod extending towards;

as long as the clutch notch is communicated with the clutch hole in an overlapping manner, the back locking shifting block abuts against the first side of the back locking stop block;

when the handle connecting seat is rotated, the reverse locking dog is pushed by the reverse locking shifting block in a butting mode, so that the handle connecting seat is driven in a linkage mode, the clutch rotor is driven to rotate in a linkage reverse locking mode, and the direction of the linkage reverse locking rotation is from the first side of the reverse locking dog to the second side of the reverse locking dog.

Furthermore, in the scheme, the first step of the method,

a through sliding chamber is arranged on the first surface of the disc main body, and the length of the clutch pin is greater than that of the sliding chamber;

the port of the sliding chamber close to the rotating station is communicated with the clutch hole of the rotating station;

the clutch pin is slidably disposed within the sliding chamber; and an elastic piece is arranged between the clutch pin and the sliding chamber and applies elastic force to the clutch pin to enable the clutch pin to always tend to be away from the rotating station.

Furthermore, in the scheme, the first step of the method,

the side wall of the rotating station is provided with two symmetrical and coaxial clutch holes;

two symmetrical and coaxial sliding chambers are arranged on the first surface of the disc main body, and ports of the two sliding chambers, which are close to the rotating station, are respectively communicated with the two clutch holes in a one-to-one manner;

the two sliding cavities are internally provided with the clutch pin and the elastic piece respectively;

when the handle connecting seat is at the initial position, the relative position of the handle connecting seat and the clutch rotor is in one installation direction; based on the initial position, the handle connecting seat is in the other mounting direction after rotating 180 degrees relative to the clutch rotor;

in the two installation directions, the linkage connection and the separation linkage of the handle connecting seat and the clutch rotor are realized through the clutch pin corresponding to one position respectively.

Furthermore, in the scheme, the first step of the method,

the inner side wall of the rotating station is convexly provided with a back locking shifting block;

two back locking stop blocks are arranged on the rotating main body of the clutch rotor and positioned on one side of the reset deflector rod extending towards;

the clutch notch is arranged between the second sides of the two reverse locking stop blocks; the two back locking stop blocks are symmetrical about the central line of the clutch notch; the straight line where the tail ends of the two reset deflector rods are located is perpendicular to the center line of the clutch notch;

in the two installation directions, as long as the clutch notch is overlapped and communicated with the clutch hole at the corresponding position, the back locking shifting block abuts against the first side of one of the back locking stop blocks close to the back locking shifting block.

Furthermore, in the scheme, the first step of the method,

the handle connecting seat is connected with the clutch rotor in a telescopic mode, and the clutch pin is driven to slide between the handle connecting seat and the clutch rotor in a telescopic mode through the switch unit so as to control the handle connecting seat and the clutch rotor to achieve linkage connection or separation linkage.

A door lock comprises a lock body, a front panel unit and a rear panel unit, wherein the front panel unit and the rear panel unit are in linkage connection with the lock body through a linkage piece,

two symmetrical fixed limiting blocks are arranged inside the rear panel unit;

the door lock also comprises a clutch mechanism of any door lock in the scheme, and the clutch mechanism of the door lock is arranged in the rear panel unit;

the two fixed limiting blocks are used for respectively clamping and limiting the two extending feet, so that the torsion spring keeps deforming and stores the elastic potential energy, and the two fixed limiting blocks and the two shifting blocks are respectively positioned on the same side of the two extending feet;

one end of the linkage piece, which is connected with the rear panel unit, is connected with the clutch rotor.

Furthermore, in the scheme, the first step of the method,

the clutch mechanism comprises a switch unit, the switch unit comprises a switch shifting plate, clamping elastic sheets and a supporting plate, a shifting column extending out of the rear panel unit is arranged on the switch shifting plate, convex clamping points are arranged on the left side and the right side of the switch shifting plate, the clamping elastic sheets are respectively arranged on the left side and the right side of the switch shifting plate, an inward-bent arc-shaped part is arranged in the middle of each clamping elastic sheet, the switch shifting plate is shifted up and down, the arc-shaped part is extruded to deform when the clamping points pass through the arc-shaped part, and the arc-shaped part restores to the original shape after passing through the arc-shaped part so as to limit the clamping points above or below the arc-shaped part;

the switch shifting plate is connected with the supporting plate, and the switch shifting plate moves up and down to drive the supporting plate to move up and down so as to control the clutch pin to slide in a telescopic manner.

Furthermore, in the scheme, the first step of the method,

the switch shifting plate, the clamping elastic sheet and the supporting plate are all arranged below the handle connecting seat, and when the switch shifting plate is lifted on the shifting column, the supporting plate upwards presses the clutch pin positioned below the shifting column to realize the combination of the handle connecting seat and the clutch rotor.

The utility model discloses following beneficial effect has: the utility model discloses a clutch mechanism of lock, for prior art's clutch mechanism, the door lock clutch structure of this scheme is more simple, and the sectional part is few, and easy dismounting has saved certain elastic potential energy at the torsional spring when the torsional spring is installed, and the torsional spring can exert elasticity throughout for the shifting block and the driving lever that resets to this, is used for resetting, can self-calibration handle connecting seat and clutch rotor's position from this.

The utility model also discloses a lock installs above-mentioned clutch mechanism, has possessed the advantage of the mechanism of above-mentioned clutch from this.

Drawings

Fig. 1 is a schematic structural view of a clutch mechanism according to the present invention;

fig. 2 is an exploded schematic view of the clutch mechanism of the present invention;

fig. 3 is a schematic structural view of the clutch mechanism and the switch unit according to the present invention;

fig. 4 is an exploded schematic view of the rear panel unit of the door lock of the present invention;

fig. 5 is a schematic view of the internal structure of the rear panel unit of the door lock of the present invention;

fig. 6 is a schematic view of a partial structure of the rear panel unit of the door lock of the present invention.

The specific structure in the figure illustrates that: 1 handle connecting seat, 11 disc main parts, 111 shifting blocks, 112 first surfaces, 113 second surfaces, 114 rotating stations, 1141 unlocking shifting blocks, 15 clutch holes, 16 sliding chambers, 12 handle connecting parts, 2 torsion springs, 21 extending feet, 3 clutch rotors, 31 rotating main parts, 311 clutch notches, 32, 321 through holes, 33 reset shifting rods, 34 unlocking stops, 341 first sides, 342 second sides, 4 clutch pins, 41 elastic parts, 5 switch units, 51 switch shifting plates, 511 shifting columns, 512 clamping points, 52 clamping elastic sheets, 521 arc parts, 53 supporting plates, 01 rear panel units, 011 fixed limiting blocks and 02 handles.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

Referring to fig. 1-3, a clutch mechanism of a door lock includes a handle coupling seat 1, a torsion spring 2, a clutch rotor 3 and a clutch pin 4,

the handle connecting seat 1 comprises a disc main body 11 and a handle connecting part 12, wherein the handle connecting part 12 is arranged on a first surface 112 of the disc main body 11; two symmetrical shifting blocks 111 are arranged on the first surface 112 of the disc main body 11 and positioned on two sides of the handle connecting part 12, and at least one of the shifting blocks 111 is detachably mounted; preferably, in the scheme, one shifting block 111 is detachable, and the other shifting block 111 is fixed, so that referring to the angle shown in fig. 1, when the installation direction of the door handle needs to be changed, only the detachable shifting block 111 on the left side can be detached, and then the whole handle connecting seat 1 is rotated counterclockwise by 180 degrees, so that reversing can be realized;

referring to fig. 2, a rotation station 114 is concavely disposed in a middle portion of a second surface 113 (i.e., a back surface of the first surface 112) of the disc main body 11, and a clutch hole is disposed on a side wall of the rotation station 114; the clutch pin 4 is slidably disposed on the disc main body 11, and the first end of the clutch pin 4 is telescopically inserted into the rotation station 114 from the clutch hole by sliding the clutch pin 4; the clutch pin 4 is slidably arranged inside the disc main body 11, and the clutch hole is arranged inside the disc main body 11, namely the structure shown in fig. 2; or outside the first surface 112 of the disc body 11, in which case the handle connecting portion 12 is only required to be provided with the clutch hole of the rotating station 114, so that the clutch pin 4 can pass through the clutch hole and enter the rotating station 114.

Referring to fig. 2, the clutch rotor 3 includes a rotating main body 31 and two symmetrical extension arms 32, and a clutch gap 311 is provided in the rotating main body 31; two extension arms 32 are formed by extending outward from the side wall of the rotating body 31; the tail ends of the two extension arms 32 are provided with reset deflector rods 33;

the clutch rotor 3 is rotatably arranged in the rotating station 114; therefore, when the clutch notch 311 is aligned to the clutch hole 15, the clutch rotor 3 and the handle connecting seat 1 can be clamped by inserting the clutch pin 4, and the clutch rotor 3 can be driven to rotate together to realize unlocking when the handle connecting seat 1 is rotated.

Referring to fig. 3, two ends of the torsion spring 2 extend to form two symmetrical extending feet 21; after the torsion spring 2 stores elastic potential energy, the two extending feet 21 are respectively clamped and limited by the two shifting blocks 111 and/or the two reset shifting rods 33, so that the torsion spring 2 keeps deforming and stores the elastic potential energy;

the two reset shift levers 33 and the two shift blocks 111 are respectively located on the same side of the two extending legs 21; the two extending feet 21 are used for respectively applying reset elastic force to the two shifting blocks 11 and the two reset shifting rods 33 so as to keep and drive the handle connecting seat 1 and the clutch rotor 3 to be restored to the initial positions;

when the clutch notch 311 overlaps the clutch hole, the first end of the clutch pin can be inserted into the rotation station 114 from the clutch hole and go deep into the clutch notch 311, so that the handle connecting seat 1 and the clutch rotor 3 are linked; when the clutch pin 4 is removed from the rotating station 114, the handle connecting seat 1 and the clutch rotor 3 are separated from linkage. From this, this scheme is through setting up handle connecting seat 1, torsional spring 2 and clutch rotor 3, and the torsional spring blocks shifting block 111 and reset driving lever 33 respectively, can realize stirring handle connecting seat 1 and clutch rotor automatic re-setting, can realize the separation and reunion of handle connecting seat 1 and clutch rotor 3 through separation and reunion round pin 4, and it is thus visible, the clutch mechanism structure of this scheme is simpler.

Further, in the above scheme, two through holes 321 are respectively formed on the two extension arms 32, and the positions of the two through holes 321 respectively correspond to the two shifting blocks 111. Therefore, when the direction of the handle connecting seat 1 is adjusted by detaching the shifting block 111, the shifting block 111 is screwed out only by penetrating the through hole 321, the clutch rotor 33 is not required to be detached, and the dismounting is convenient.

Further, in the above scheme, referring to fig. 2, an anti-lock shifting block 1141 is convexly arranged on the inner side wall of the rotating station 114;

a back locking stop block 34 is arranged on the rotating body 31 of the clutch rotor 3 and positioned on one side of the reset deflector rod 33 extending towards;

as long as the clutch notch 311 is in overlapped communication with the clutch hole, the back locking shifting block abuts against the first side 341 of the back locking stop block 34; here, the first side 341 of the back lock stop 34 refers to the side away from the clutch notch 311, and the opposite, second side 342 of the back lock stop 34 refers to the side facing the clutch notch 311;

when the handle connecting seat 1 is rotated, the reverse locking stopper 34 is pushed by the reverse locking shifting block 1141 to realize that the handle connecting seat 1 is linked to drive the clutch rotor 3 to perform linkage reverse locking rotation, and the direction of the linkage reverse locking rotation is from the first side 341 of the reverse locking stopper to the second side 342 of the reverse locking stopper 34. From this, when needs carry out the back-locking, only need drive handle connecting seat 1 through the pull-up handle and rotate, the back-locking shifting block 1141 can stir back-locking 34, and then stir clutch rotor 3 and rotate and drive the back-locking.

Further, in the above solution, the first surface of the disc main body 11 is provided with a through sliding chamber, and the length of the clutch pin 4 is greater than the length of the sliding chamber;

and the port of the sliding chamber close to the rotating station 114 is communicated with the clutch hole of the rotating station 114;

with reference to fig. 3, the clutch pin 4 is slidably arranged in the sliding chamber; and an elastic member 41 is arranged between the clutch pin and the sliding chamber, and the elastic member 41 applies elastic force to the clutch pin 4 to enable the clutch pin 4 to always tend to be away from the rotating station 114. Therefore, when the door needs to be opened, the clutch pin 4 needs to be pressed into the rotating station 114 so that the clutch rotor 3 is combined with the handle connecting seat 1, the elastic piece 41 can push out the clutch pin 4 without pressing the clutch pin 4, and the condition that the door cannot be opened even when the handle rotates is ensured.

Further, in the above scheme, the side wall of the rotating station 114 is provided with two symmetrical and coaxial clutch holes;

two symmetrical and coaxial sliding chambers are arranged on the first surface 112 of the disc main body 11, and ports of the two sliding chambers, which are close to the rotating station 113, are respectively communicated with the two clutch holes in a one-to-one manner;

the two sliding chambers are respectively provided with the clutch pin 4 and the elastic piece 41;

when the handle connecting seat is at the initial position, the relative position of the handle connecting seat 1 and the clutch rotor 3 is in one installation direction; based on the initial position, the handle connecting seat 1 rotates 180 degrees relative to the clutch rotor 3 and then is in the other mounting direction;

in the two installation directions, the linkage connection and the separation linkage of the handle connecting seat 1 and the clutch rotor 3 are respectively realized through the clutch pin 4 corresponding to one of the positions. That is, only one unit capable of pushing the clutch pin 4 to move needs to be arranged, and no matter which installation direction is used, the unit can be at least aligned to one clutch pin 4, so that the linkage connection and the separation linkage of the handle connecting seat 1 and the clutch rotor 3 can be realized by pushing one clutch pin 4.

Further, in the above scheme, a reverse locking shifting block 1141 is convexly arranged on the inner side wall of the rotating station 113;

two back locking stoppers 34 are arranged on the rotating body 31 of the clutch rotor 3 and positioned on one side of the reset shift lever 33 extending towards;

the clutch notch 311 is opened between the second sides 342 of the two back locking stoppers 34; and the two back locking stoppers 34 are symmetrical about the center line of the clutch notch 311; the straight line where the tail ends of the two reset deflector rods 33 are located is perpendicular to the central line of the clutch notch 311;

in both of the installation directions, as long as the clutch notch 311 is in overlapping communication with the clutch hole at the corresponding position, the anti-lock shift block 1141 abuts against the first side 341 of one of the anti-lock stoppers 34 adjacent thereto. From this, can realize that no matter what kind of installation unwrapping wire handle connecting seat 1, no matter whether separation and reunion round pin 4 has to insert in separation and reunion breach 311, can both realize that anti-lock shifting block 1141 can promote one of them anti-lock dog 34 and realize the anti-lock.

Further, in the above scheme, referring to fig. 3, the handle connecting seat further includes a switch unit 5, and the switch unit 5 drives the clutch pin 4 to telescopically slide between the handle connecting seat 1 and the clutch rotor 3, so as to control the handle connecting seat 1 and the clutch rotor 3 to realize the linkage connection or the disengagement linkage.

Referring to fig. 4 to 6, a door lock includes a lock body (installed in a door body, not shown), a front panel unit (installed outside the door body, not shown), and a rear panel unit 01, wherein the front panel unit and the rear panel unit 01 are connected with the lock body through a linkage member (not shown),

two symmetrical fixed limiting blocks 011 are arranged inside the rear panel unit 01;

the door lock also comprises a clutch mechanism of any door lock in the scheme, and the clutch mechanism of the door lock is arranged in the rear panel unit 01;

the two fixed limiting blocks 011 respectively clamp and limit the two extending feet 21, so that the torsion spring 2 keeps deforming and stores the elastic potential energy, and the two fixed limiting blocks 011 and the two shifting blocks 111 are respectively positioned on the same side of the two extending feet 21; thus, the torsion spring 2 can be chucked in the rear panel unit 01 by the two fixed stoppers 011.

One end of the linkage piece connected with the rear panel unit 01 is connected with the clutch rotor 3.

Further, in the above scheme, the clutch mechanism includes a switch unit 5, the switch unit 5 includes a switch dial plate 51, a locking elastic sheet 52 and a supporting plate 53, the switch dial plate 51 is provided with a dial column 511 extending out of the rear panel unit 01, the left and right sides of the switch dial plate 51 are provided with convex locking points 512, the left and right sides of the switch dial plate 51 are respectively provided with the locking elastic sheet 52, the middle part of the locking elastic sheet 52 is provided with an arc portion 521 bent inward, the switch dial plate 51 is toggled up and down, the locking points 512 press the arc portion 521 to deform when passing through the arc portion 521, and after passing through the arc portion 521, the arc portion 521 returns to the original state to limit the locking points 512 above or below the arc portion 521;

the switch shifting plate 51 is connected with the supporting plate 53, and the switch shifting plate 51 moves up and down to drive the supporting plate 53 to move up and down so as to control the telescopic sliding of the clutch pin 4. Therefore, when the door is opened, the switch shifting plate 51 can move upwards to support the clutch pin 4 without supporting the shifting column 511 by hands at any time, and can be clamped by the clamping elastic sheet 52 only after being shifted upwards.

Further, in the above scheme, the switch dialing plate 51, the clamping spring 52 and the supporting plate 53 are all disposed below the handle connecting seat 1, and when the switch dialing plate 51 is lifted up through the dialing column 511, the supporting plate 53 presses the clutch pin 4 located below upwards to realize the combination of the handle connecting seat 1 and the clutch rotor 3.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, that is, all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims (10)

1. The utility model provides a clutch mechanism of lock, includes handle connecting seat, torsional spring, separation and reunion rotor and separation and reunion round pin, its characterized in that:

the handle connecting seat comprises a disc main body and a handle connecting part, and the handle connecting part is arranged on the first surface of the disc main body; two symmetrical shifting blocks are arranged on the first surface of the disc main body and positioned on two sides of the handle connecting part, and at least one of the shifting blocks is detachably mounted;

a rotating station is concavely arranged in the middle of the second surface of the disc main body, and a clutch hole is formed in the side wall of the rotating station; the clutch pin is slidably arranged on the disc main body, and the first end of the clutch pin is telescopically inserted into the rotating station from the clutch hole by sliding the clutch pin;

the clutch rotor comprises a rotating main body and two symmetrical extension arms, and a clutch gap is formed in the rotating main body; the two extension arms are formed by extending outwards from the side wall of the rotating main body; the tail ends of the two extension arms are provided with reset deflector rods;

the clutch rotor is rotatably arranged in the rotating station;

two tail ends of the torsion spring extend to form two symmetrical extending feet; after the torsional spring stores elastic potential energy, the two shifting blocks and/or the two reset shifting rods are used for respectively clamping and limiting the two extending feet, so that the torsional spring keeps deforming and stores the elastic potential energy;

the two reset deflector rods and the two deflector blocks are respectively positioned at the same side of the two extending pins; the two extending pins are used for applying reset elasticity to the two shifting blocks and the two reset shifting rods respectively so as to keep and drive the handle connecting seat and the clutch rotor to return to the initial positions;

when the clutch gap is overlapped with the clutch hole, the first end of the clutch pin can be inserted into the rotating station from the clutch hole and deeply enters the clutch gap, so that the handle connecting seat is in linkage connection with the clutch rotor; when the clutch pin is withdrawn from the rotating station, the handle connecting seat and the clutch rotor are separated from linkage.

2. A clutch mechanism for a door lock according to claim 1, wherein:

the two extending arms are respectively provided with a through hole, and the positions of the two through holes respectively correspond to the two shifting blocks.

3. A clutch mechanism for a door lock according to claim 1, wherein:

the inner side wall of the rotating station is convexly provided with a back locking shifting block;

a reverse locking stop block is arranged on the rotating main body of the clutch rotor and positioned on one side of the reset deflector rod extending towards;

as long as the clutch notch is communicated with the clutch hole in an overlapping manner, the back locking shifting block abuts against the first side of the back locking stop block;

when the handle connecting seat is rotated, the reverse locking dog is pushed by the reverse locking shifting block in a butting mode, so that the handle connecting seat is driven in a linkage mode, the clutch rotor is driven to rotate in a linkage reverse locking mode, and the direction of the linkage reverse locking rotation is from the first side of the reverse locking dog to the second side of the reverse locking dog.

4. A clutch mechanism for a door lock according to claim 1, wherein:

a through sliding chamber is arranged on the first surface of the disc main body, and the length of the clutch pin is greater than that of the sliding chamber;

the port of the sliding chamber close to the rotating station is communicated with the clutch hole of the rotating station;

the clutch pin is slidably disposed within the sliding chamber; and an elastic piece is arranged between the clutch pin and the sliding chamber and applies elastic force to the clutch pin to enable the clutch pin to always tend to be away from the rotating station.

5. The clutch mechanism for door lock according to claim 4, wherein:

the side wall of the rotating station is provided with two symmetrical and coaxial clutch holes;

two symmetrical and coaxial sliding chambers are arranged on the first surface of the disc main body, and ports of the two sliding chambers, which are close to the rotating station, are respectively communicated with the two clutch holes in a one-to-one manner;

the two sliding cavities are internally provided with the clutch pin and the elastic piece respectively;

when the handle connecting seat is at the initial position, the relative position of the handle connecting seat and the clutch rotor is in one installation direction; based on the initial position, the handle connecting seat is in the other mounting direction after rotating 180 degrees relative to the clutch rotor;

in the two installation directions, the linkage connection and the separation linkage of the handle connecting seat and the clutch rotor are realized through the clutch pin corresponding to one position respectively.

6. The clutch mechanism for door lock according to claim 5, wherein:

the inner side wall of the rotating station is convexly provided with a back locking shifting block;

two back locking stop blocks are arranged on the rotating main body of the clutch rotor and positioned on one side of the reset deflector rod extending towards;

the clutch notch is arranged between the second sides of the two reverse locking stop blocks; the two back locking stop blocks are symmetrical about the central line of the clutch notch; the straight line where the tail ends of the two reset deflector rods are located is perpendicular to the center line of the clutch notch;

in the two installation directions, as long as the clutch notch is overlapped and communicated with the clutch hole at the corresponding position, the back locking shifting block abuts against the first side of one of the back locking stop blocks close to the back locking shifting block.

7. A clutch mechanism for a door lock according to claim 1, wherein:

the handle connecting seat is connected with the clutch rotor in a telescopic mode, and the clutch pin is driven to slide between the handle connecting seat and the clutch rotor in a telescopic mode through the switch unit so as to control the handle connecting seat and the clutch rotor to achieve linkage connection or separation linkage.

8. The utility model provides a door lock, includes lock body, front panel unit and back panel unit, the front panel unit with through the linkage between the back panel unit with but lock body linkage connection its characterized in that:

two symmetrical fixed limiting blocks are arranged inside the rear panel unit;

the door lock further comprises a clutch mechanism of any one of the door locks as claimed in claims 1 to 7, the clutch mechanism of the door lock being installed in the rear panel unit;

the two fixed limiting blocks are used for respectively clamping and limiting the two extending feet, so that the torsion spring keeps deforming and stores the elastic potential energy, and the two fixed limiting blocks and the two shifting blocks are respectively positioned on the same side of the two extending feet;

one end of the linkage piece, which is connected with the rear panel unit, is connected with the clutch rotor.

9. A door lock according to claim 8, wherein:

the clutch mechanism comprises a switch unit, the switch unit comprises a switch shifting plate, clamping elastic sheets and a supporting plate, a shifting column extending out of the rear panel unit is arranged on the switch shifting plate, convex clamping points are arranged on the left side and the right side of the switch shifting plate, the clamping elastic sheets are respectively arranged on the left side and the right side of the switch shifting plate, an inward-bent arc-shaped part is arranged in the middle of each clamping elastic sheet, the switch shifting plate is shifted up and down, the arc-shaped part is extruded to deform when the clamping points pass through the arc-shaped part, and the arc-shaped part restores to the original shape after passing through the arc-shaped part so as to limit the clamping points above or below the arc-shaped part;

the switch shifting plate is connected with the supporting plate, and the switch shifting plate moves up and down to drive the supporting plate to move up and down so as to control the clutch pin to slide in a telescopic manner.

10. A door lock according to claim 9, wherein:

the switch shifting plate, the clamping elastic sheet and the supporting plate are all arranged below the handle connecting seat, and when the switch shifting plate is lifted on the shifting column, the supporting plate upwards presses the clutch pin positioned below the shifting column to realize the combination of the handle connecting seat and the clutch rotor.

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