CN209855396U

CN209855396U - Gear box

Info

Publication number: CN209855396U
Application number: CN201821756192.9U
Authority: CN
Inventors: 龙胜雄; 王金奎
Original assignee: Romance Science And Technology Ltd Of Shenzhen
Current assignee: Shenzhen Romans Smart Home Co.,Ltd.
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2019-12-27
Anticipated expiration: 2028-10-29

Abstract

The utility model relates to a lock accessory field, in particular to a gearbox, which comprises a gearbox body, a power output gear set, an automatic power input gear set, a clutch component, a lock core component, an emergency component and a driving gear, wherein the driving gear comprises a first meshing area meshed with the power output gear set and a first keep-out area disengaged with the power output gear set; when the driving gear rotates along with the lock core assembly or the emergency assembly to be meshed with the power output gear set, the clutch assembly is in a separated state; when the driving gear rotates along with the lock core assembly or the emergency assembly to be disengaged from the power output gear set, the clutch assembly is in a combined state, and the automatic power input gear set drives the power output gear set to output power. Overall structure is very simple to it is effective convenient, can realize the tool to lock unblock through different modes under any circumstance, need not too high required precision.

Description

Gear box

Technical Field

The utility model relates to a lock accessory field, concretely relates to gearbox.

Background

The existing anti-theft door on the market has uneven quality, the lock is one of important consideration indexes of the anti-theft safety performance of the door, almost all locks are mechanical, the main spring bolt is cylindrical or square, the purpose of opening and closing the lock is achieved by twisting the stroke block in the lock body through external force, the lock body has a complex structure, various accessories and a large failure rate, and the lock body cannot be matched with the emerging intelligent lock.

The common intelligent lock is different from the traditional mechanical lock, is a lock which can be more intelligent in the aspects of user identification, safety, management and the like, and controls the opening and closing of the anti-theft door by using an intelligent remote control mode.

However, the existing intelligent lock drives the lock tongue to perform locking and unlocking operations through the motor, when the power is off, the related transmission structure for manually opening the anti-theft door through the key is complex, and the situation that the internal structure is blocked or fails and the lock cannot be unlocked easily occurs; and the intelligence lock need carry out the manual switch lock through emergency device, current emergency device needs clutch device to mutually support, and clutch device is equipped with the separation and reunion board, drives the separation and reunion board through emergency device and removes the separation and reunion position, unblanks again, so, very strict to the requirement of separation and reunion board displacement, the condition that the unable accurate removal of separation and reunion board targets in place takes place easily to, when user's hand is twisted emergency device, often need great dynamics just can accomplish the operation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a gearbox, it is complicated to solve the gearbox structure, the higher problem of required precision.

In order to solve the technical problem, the utility model provides a gearbox, including gearbox body, power take off gear train, locate in the gearbox body by motor drive's automatic power input gear train, establish the clutch assembly between power take off gear train and automatic power input gear train, respectively with clutch assembly drive connection's lock core subassembly and emergent subassembly, the gearbox still includes drive gear, drive gear includes the first meshing area with the meshing of power take off gear train and the first space area of keeping away that breaks away from the meshing with the power take off gear train; when the driving gear rotates along with the lock core assembly or the emergency assembly to be meshed with the power output gear set, the clutch assembly is in a separated state; when the driving gear rotates to be disengaged from the power output gear set along with the lock core assembly or the emergency assembly, the clutch assembly is in a combined state, and the automatic power input gear set drives the power output gear set to output power.

Wherein, the preferred scheme is: the clutch component comprises a clutch rod, a middle-stage change gear arranged at one end of the clutch rod, a middle-stage change small gear coaxially arranged with the middle-stage change gear and a clutch mating piece arranged at the other end of the clutch rod; when the driving gear rotates along with the lock core assembly or the emergency assembly to be meshed with the power output gear set, one end of the clutch rod descends, the other end of the clutch rod ascends, and the middle-stage variable-speed wheel and the middle-stage variable-speed small wheel are arranged in a separated mode; when the driving gear rotates to be disengaged from the power output gear set along with the lock core assembly or the emergency assembly, the medium-speed change wheel and the medium-speed change small wheel are combined.

Wherein, the preferred scheme is: be equipped with first recess on the separation and reunion mating member, when drive gear rotated to breaking away from the meshing with power take off gear train along with lock core subassembly or emergent subassembly, clutch lever one end was located first recess.

Wherein, the preferred scheme is: the middle-stage variable-speed wheel is provided with a bulge, the middle-stage variable-speed small wheel is provided with a second groove which is combined with or separated from the bulge under the driving of the lock cylinder assembly or the emergency assembly, or the middle-stage variable-speed small wheel is provided with a bulge, and the middle-stage variable-speed wheel is provided with a second groove which is combined with or separated from the bulge under the driving of the lock cylinder assembly or the emergency assembly.

Wherein, the preferred scheme is: and auxiliary sliding grooves are formed in two sides of the first groove.

Wherein, the preferred scheme is: the end edges of the adjacent auxiliary chutes are tangentially arranged.

Wherein, the preferred scheme is: the protrusions are provided with frustum tables.

Wherein, the preferred scheme is: the separation and reunion fitting piece is clutch gear, the lock core subassembly includes the lock core gear that lock core and peripheral lock core set up, the lock core drives lock core gear revolve, lock core gear drives clutch gear revolve.

Wherein, the preferred scheme is: the lock cylinder gear comprises a second meshing area meshed with the clutch gear and a second clearance area disengaged from the clutch gear, and when the driving gear rotates along with the lock cylinder component or the emergency component to be meshed with the power output gear set, the lock cylinder gear is meshed with the clutch gear; when the driving gear rotates to be disengaged from the power output gear set along with the lock cylinder assembly or the emergency assembly, the lock cylinder gear is disengaged from the clutch gear.

Wherein, the preferred scheme is: the emergency assembly comprises an emergency knob coaxially and fixedly arranged with the clutch gear, and the emergency knob drives the clutch gear to rotate.

Wherein, the preferred scheme is: the clutch assembly further comprises a first clutch spring for pressing down the middle-stage variable-speed wheel, a shaft sleeved with the middle-stage variable-speed wheel is a clutch shaft, and the first clutch spring is arranged between the middle-stage variable-speed wheel and the clutch shaft or a cover plate of the gearbox body; when drive gear rotated to and disengaged with power take off gear train along with lock core subassembly or emergent subassembly, separation and reunion fitting piece drive clutch lever is in steady state, first separation and reunion spring pushes down medium-grade change gear, medium-grade change gear combines with the setting of medium-grade variable speed steamboat.

Wherein, the preferred scheme is: one end of the middle-stage speed changing wheel is provided with an extending part, and one end of the clutch rod is abutted against the extending part; when the driving gear rotates to be meshed with the power output gear set along with the lock cylinder assembly or the emergency assembly, one end of the clutch rod is driven by the clutch gear to descend, the other end of the clutch rod ascends, the extending part is warped, and the middle-stage speed change wheel is separated from the middle-stage speed change small wheel.

Wherein, the preferred scheme is: the clutch assembly further comprises a torsion spring and a second clutch spring which is coaxially arranged with the middle-stage speed change wheel, and one end of the torsion spring is abutted against the clutch rod; when the driving gear rotates along with the lock core assembly or the emergency assembly to be disengaged from the power output gear set, the clutch gear drives the clutch rod to be in a stable state, the torsion spring is in a force accumulation state, and the second clutch spring is in a compressed state, so that the middle-stage speed change wheel and the middle-stage speed change small wheel are combined; when the driving gear rotates to be meshed with the power output gear set along with the lock cylinder assembly or the emergency assembly, the clutch gear drives one end of the clutch rod to descend, the other end of the clutch rod to ascend, the torsion spring is in a releasing state, and the second clutch spring is in a releasing state, so that the medium-speed change gear and the medium-speed change small gear are arranged in a separated mode.

Wherein, the preferred scheme is: the automatic power input gear set comprises a gear assembly, a worm and a worm wheel meshed with the worm, the gear assembly is provided with a front-stage speed change wheel which is coaxially and fixedly arranged with the worm wheel and meshed with a middle-stage speed change wheel, and the height of the front-stage speed change wheel is larger than or equal to the stroke of the middle-stage speed change wheel in the clutch process.

The utility model has the advantages that, compared with the prior art, the utility model discloses a design a gearbox, accessible plug subassembly or emergent subassembly drive clutch assembly accomplish the separation and reunion operation for automatic power input gear train and power output gear train separation setting, and plug subassembly or emergent subassembly do not drive clutch assembly, automatic power input gear train and power output gear train combine to set up, are driven power output gear train output power by automatic power input gear train, and overall structure is very simple, and is effective convenient, can realize the tool to lock unblock through different modes under any circumstances, need not too high required precision; in addition, the lock cylinder gear or the emergency knob can drive the driving gear to rotate, the driving gear drives the power output gear set to output power, therefore, a user only needs to directly screw the lock cylinder or the emergency knob, the clutch and the unlocking operation can be simultaneously realized, and the operation is very simple and convenient.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is an exploded view of the transmission of the present invention;

FIG. 2 is a schematic diagram of an embodiment of the transmission of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic view of a medium speed gear of the present invention;

FIG. 5 is a schematic representation of another embodiment of a transmission of the present invention;

fig. 6 is a partially enlarged view of fig. 5.

Detailed Description

The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the present invention provides a preferred embodiment of a transmission.

The gearbox is mounted on the lock and used for driving the lock to unlock. The gearbox comprises a gearbox body 10, a power output gear set, an automatic power input gear set, a clutch assembly, a lock cylinder assembly and an emergency assembly, wherein the automatic power input gear set is arranged in the gearbox body 10 and driven by a motor 31; when the clutch assembly is not driven by the lock cylinder assembly or the emergency assembly, the automatic power input gear set and the power output gear set are combined, and the automatic power input gear set drives the power output gear set to output power. Overall structure is very simple to it is effective convenient, can realize the tool to lock unblock through different modes under any circumstance, also need not too high required precision.

Specifically, referring to fig. 1, the clutch assembly includes a clutch lever 21, a middle speed change gear 11 provided at one end of the clutch lever 21 and drivingly connected to the clutch lever 21, a middle speed change small gear 12 coaxially provided with the middle speed change gear 11, and a clutch partner provided at the other end of the clutch lever 21, the clutch lever 21 being a clutch lever mounted on the transmission case 10. When the lock core assembly or the emergency assembly drives the clutch matching piece to rotate, the clutch matching piece presses one end of the clutch rod 21 downwards, when one end of the clutch rod 21 descends, the other end of the clutch rod is bound to ascend, the middle-stage speed change wheel 11 also ascends along with the clutch rod and is arranged separately from the middle-stage speed change small wheel 12, namely, the middle-stage speed change wheel 11 and the middle-stage speed change small wheel 12 cannot influence each other at the moment. When the clutch matching piece is not driven to rotate by the lock core assembly or the emergency assembly, the clutch rod 21 is in a stable state, and the middle-stage variable-speed wheel 11 is combined with the middle-stage variable-speed small wheel 12.

Further, referring to fig. 1 and 2, the clutch mating member is provided with a first groove 221. When the plug assembly or the emergency assembly drives the clutch mating member to rotate, the clutch lever 21 is gradually separated from the first groove 221, at this time, the clutch lever 21 is pressed down by the downward pressure of the clutch mating member, and the other end of the clutch lever 21 is lifted, so that the middle-stage speed change wheel 11 and the middle-stage speed change small wheel 12 are separated. When the clutch mating member is not driven by the lock cylinder assembly or the emergency assembly to rotate, one end of the clutch lever 21 is located in the first groove 221, even if one end of the clutch lever 21 tends to rise, but the upper end surface of one end of the clutch lever 21 is abutted against the bottom end surface of the first groove 221, one end of the clutch lever 21 is limited in the first groove 221, the clutch lever 21 is in a stable state, one end of the clutch lever 21 does not continue to rise, at the moment, the middle-stage speed change wheel 11 is pressed by the other end of the clutch lever 21, the middle-stage speed change wheel 11 is combined with the middle-stage speed change small wheel 12, the automatic power input gear set drives the middle-stage speed change wheel 11 to rotate, the middle-stage speed change wheel 11 drives the middle-stage speed change small wheel 12 to rotate, and the middle-stage speed change small wheel 12 drives the power output gear set to output power.

Still further, referring to fig. 3 and 4, a protrusion 121 is disposed on the medium speed change wheel 11, a second groove 111 adapted to the protrusion 121 is disposed on the small medium speed change wheel 12, and under the driving action of the plug assembly or the emergency assembly, the protrusion 121 extends into or out of the second groove 111 to achieve the mutual combination or separation, so that the medium speed change wheel 11 and the small medium speed change wheel 12 are combined or separated; or, a second groove 111 is arranged on the small middle-stage speed change wheel 12, a second groove 111 matched with the protrusion 121 is arranged on the small middle-stage speed change wheel 11, and the protrusion 121 extends into or out of the second groove 111 under the driving action of the lock core assembly or the emergency assembly to realize the mutual combination or separation, so that the small middle-stage speed change wheel 11 and the small middle-stage speed change wheel 12 are combined or separated; or, the middle-stage speed-changing wheel 11 is provided with a second groove 111 and a protrusion 121, the small middle-stage speed-changing wheel 12 is also provided with the second groove 111 and the protrusion 121, and the protrusion 121 extends into or out of the second groove 111 under the driving action of the plug assembly or the emergency assembly to realize the mutual combination or separation, so that the middle-stage speed-changing wheel 11 and the small middle-stage speed-changing wheel 12 are combined or separated. It should be noted that when the protrusion 121 is combined with the second groove 111, that is, the middle-stage transmission wheel 11 is combined with the middle-stage transmission small wheel 12, at this time, the middle-stage transmission wheel 11 and the middle-stage transmission small wheel 12 are mutually driven to rotate, that is, the rotation of the middle-stage transmission wheel 11 drives the middle-stage transmission small wheel 12 to rotate, and the rotation of the middle-stage transmission small wheel 12 also drives the middle-stage transmission wheel 11 to rotate. When the projection 121 and the second groove 111 are disengaged, that is, the middle speed changing wheel 11 and the middle speed changing small wheel 12 are disengaged, the middle speed changing wheel 11 and the middle speed changing small wheel 12 do not affect each other.

Referring to fig. 4, the two sides of the first groove 111 are provided with auxiliary sliding grooves 112, and the auxiliary sliding grooves 112 are used for the auxiliary protrusions 121 to extend into the first groove 111. The middle-stage variable-speed wheel 11 is driven by the lock core assembly or the emergency assembly to gradually approach the middle-stage variable-speed small wheel 12, when the middle-stage variable-speed wheel 11 just contacts the middle-stage variable-speed small wheel 12, the position of the protrusion 121 may not be just opposite to the position of the first groove 111, the protrusion 121 firstly contacts the auxiliary chute 112, the auxiliary chute 112 is provided with a certain gradient, the middle-stage variable-speed wheel 11 then moves towards the middle-stage variable-speed small wheel 12, and the protrusion 121 gradually slides from the auxiliary chute 112 to the first groove 111 so as to extend into the first groove 111. Preferably, the end edges of the adjacent auxiliary chutes 112 are tangentially arranged, and the protrusions 121 must be able to extend into the first grooves 111 regardless of the rotation of the middle speed change wheel 11 and the middle speed change small wheel 12, thereby ensuring that the clutch does not fail.

Preferably, referring to fig. 3, the protrusion 121 is provided with a frustum 1211 adapted to the auxiliary sliding groove 112, and a slope of the frustum 1211 is matched with a slope of the auxiliary sliding groove 112 to facilitate the protrusion 121 to slide from the auxiliary sliding groove 112 to the first groove 111. Of course, the slope of the frustum 1211 may not be limited, and the protrusion 121 may be assisted to slide from the auxiliary chute 112 to the second groove 111.

Specifically, referring to fig. 1 and fig. 2, the clutch mating member is a clutch gear 22, the plug assembly includes a plug 41 and a plug gear 42 disposed on the peripheral plug 41, the plug gear 42 rotates along with the rotation of the plug 41, and the plug gear 42 drives the clutch gear 22 to rotate.

Still more specifically, with reference to fig. 1 and 2, the panic assembly comprises a panic knob 51 arranged coaxially to the clutch gear 22, which brings about the rotation of the clutch gear 22 if the panic knob 51 is screwed.

When the key cylinder 41 does not rotate, the second space-avoiding area 421 faces the clutch gear 22, that is, the gear teeth of the clutch gear 22 are located in the second space-avoiding area 421, and even if the emergency knob 51 drives the clutch gear 22 to rotate, the clutch gear 22 and the key cylinder gear 42 are in a rotating space state, the key cylinder gear 42 cannot rotate along with the gear teeth. When the key cylinder 41 drives the key cylinder gear 42 to rotate, the second meshing area 422 is meshed with the clutch gear 22, and the key cylinder gear 42 drives the clutch gear 22 to rotate.

Further, referring to fig. 1, the manual power input assembly includes a driving gear 61 fixed coaxially with the clutch gear 22, that is, the driving gear 61 is also rotated by the rotation of the emergency knob 51, and the driving gear 61 is provided at one side of the power output gear set.

When the lock core 41 is screwed, the lock core gear 42 drives the clutch gear 22 and the driving gear 61 to synchronously rotate, the clutch gear 22 drives one end of the clutch rod 21 to descend, and the other end of the clutch rod to ascend, at the moment, the middle-stage speed change wheel 11 and the middle-stage speed change small wheel 12 are arranged in a separated mode, the driving gear 61 is in driving connection with the power output gear set, and the driving gear 61 continues to rotate along with the rotation of the lock core gear 42 to drive the power output gear set to output power. Or, when the emergency knob 51 is screwed, the clutch gear 22 and the driving gear 61 are driven to synchronously rotate, the clutch gear 22 drives one end of the clutch rod 21 to descend, and the other end of the clutch rod to ascend, at this time, the intermediate speed change wheel 11 and the intermediate speed change small wheel 12 are separately arranged, the driving gear 61 is in driving connection with the power output gear set, and the driving gear 61 continues to rotate along with the rotation of the emergency knob 51 to drive the power output gear set to output power. Therefore, the clutch and the unlocking operation can be realized at the same time only by directly screwing the lock cylinder 41 or the emergency knob 51, the whole structure is extremely simple, and the operation is extremely simple and convenient.

The driving gear 61 includes a first space avoiding area 611 disengaged from the power output gear set and a first space avoiding area 612 engaged with the power output gear set, and when the lock cylinder 41 or the emergency knob is not rotated, the first space avoiding area 611 faces the power output gear set, so that when the automatic power input gear set drives the power output gear set to perform power output, the driving gear 61 is not driven to rotate, and the clutch gear 22, the lock cylinder gear 42 and the emergency knob 51 are not driven to rotate; when the lock cylinder gear 42 or the emergency knob 51 rotates, the first meshing area 612 is also meshed with the power output gear set, and the emergency knob 51 or the lock cylinder gear 42 rotates to drive the driving gear 61 to rotate to drive the power output gear set to output power.

Still further, referring to fig. 5 and 6, the clutch lever 21 is fixed to the transmission case 10 by a screw 28, the clutch assembly further includes a first clutch spring 27 fixed coaxially with the intermediate gear 11, and a common shaft of the two is fixed to the transmission case, the shaft is a clutch shaft, the intermediate gear 11 and the first clutch spring 27 only move on the clutch shaft, and the first clutch spring 27 is disposed between the intermediate gear 11 and the clutch shaft or a cover plate of the transmission case 10; specifically, referring to fig. 5, the first clutch spring 27 has one end abutting the clutch lever 21 and the other end abutting the intermediate transmission wheel 11. In consideration of the stroke, the transmission case 10 is provided with a protrusion at one end, and the clutch shaft is lengthened. When the lock core component or the emergency component does not press one end of the clutch lever 21, namely, the clutch gear 22 does not rotate, one end of the clutch lever 21 is positioned in the first groove 221, the clutch lever 21 is in a stable state, the first clutch spring 27 is in a compressed state, and a certain elastic force is given to the medium-speed gear wheel 11, so that the medium-speed gear wheel 11 and the small medium-speed gear wheel 12 are combined.

Further, referring to fig. 6, the top end of the middle gear 11 is provided with an extending portion 111, one end of the clutch lever 21 abuts against the extending portion 111, when the key cylinder gear 42 or the emergency knob 51 drives the clutch gear 22 to rotate, the clutch gear 22 presses one end of the clutch lever 21, which is pressed down, descends, the other end, which is not pressed down, ascends, and tilts the extending portion 111, so that the middle gear 11 ascends and is separated from the small middle gear. Of course, the extension 111 may not be provided in the intermediate transmission gear 11, the clutch lever 21 directly abuts against the main body of the intermediate transmission gear 11, and the clutch lever 21 drives the intermediate transmission gear 11 to ascend during the ascending process. In summary, the intermediate transmission wheel 11 and the intermediate transmission small wheel 12 are clutched.

Or, referring to fig. 1 and 2, the clutch lever 21 is fixed to the transmission case 10 by a screw 25, the clutch assembly further includes a torsion spring 23 and a second clutch spring 24 coaxially fixed to the middle gear 11 and located in the middle gear 11, one end of the torsion spring 23 abuts against the clutch lever 21, and the torsion spring 23 is fixed to the transmission by a screw 26. When the clutch lever 21 is not pressed down by the plug assembly or the emergency assembly, that is, the clutch gear 22 is not rotated, one end of the clutch lever 21 is located in the first groove 221, the clutch lever 21 is in a stable state, the torsion spring 23 is in a force accumulation state, the second clutch spring 24 is in a compression state, and the force of the torsion spring 23 is greater than that of the second clutch spring 24, so that the medium speed change gear 11 is combined with the medium speed change small gear 12. When clutch lever 21 is pushed down to plug subassembly or emergent subassembly, clutch lever 21 receives the one end decline of holding down force, and the one end that does not receive the holding down force rises, gives torsional spring 23 one end effort, torsional spring 23 is in the power of putting state, second separation and reunion spring 24 changes into the release state, and under second separation and reunion spring 24's elastic force effect, well level change wheel 11 rises to with well level change speed steamboat 12 separation settings. In summary, the intermediate transmission wheel 11 and the intermediate transmission small wheel 12 are clutched.

Of course, the gearbox also can be not so complicated, for example, the lock core subassembly only is equipped with the extruded article, lock core 41 or emergent knob 51 rotate and drive the extruded article work, clutch lever 21 and middle gear change wheel 11 fixed connection, extrude clutch lever 21 one end through the extruded article, the extruded article mutually supports with clutch lever 21, can drive clutch lever 21 one end and descend, and the clutch lever 21 other end rises, drives middle gear change wheel 11 and rises.

In this embodiment, refer to fig. 1, the automatic power input gear train includes gear assembly, worm 32 and the worm wheel 33 with worm 32 meshing, the gear assembly is equipped with worm wheel 33 coaxial set firmly and with the preceding stage change gear 34 of middle-stage change gear 11 meshing, when protruding 121 combines with second recess 111, motor 31 drive worm 32 rotates, worm 32 drives worm wheel 33 and rotates, worm wheel 33 drives preceding stage change gear 34 and rotates, preceding stage change gear 34 drives middle-stage change gear 11 and rotates, middle-stage change gear 11 drives middle-stage change pinion 12 and rotates, middle-stage change pinion 12 drives power output gear train output power, drives the tool to lock unblock. Preferably, the height of the front stage transmission wheel 34 is greater than or equal to the stroke of the intermediate stage transmission wheel 11 during the clutching operation, so that the front stage transmission wheel 34 and the intermediate stage transmission wheel 11 are always engaged, and the situation that the intermediate stage transmission wheel 11 cannot be brought back into engagement with the front stage transmission wheel 34 when the intermediate stage transmission wheel 11 is disengaged from the intermediate stage small transmission wheel 12 and then engaged is avoided.

In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a gearbox, includes gearbox body, power take off gear train, locates the gearbox in vivo by motor drive's automatic power input gear train, establish the clutch assembly between power take off gear train and automatic power input gear train, respectively with clutch assembly drive connected's lock core subassembly and emergent subassembly, its characterized in that: the gearbox also comprises a driving gear, wherein the driving gear comprises a first meshing area meshed with the power output gear set and a first clearance area disengaged from the power output gear set; when the driving gear rotates along with the lock core assembly or the emergency assembly to be meshed with the power output gear set, the clutch assembly is in a separated state; when the driving gear rotates to be disengaged from the power output gear set along with the lock core assembly or the emergency assembly, the clutch assembly is in a combined state, and the automatic power input gear set drives the power output gear set to output power.

2. The transmission of claim 1, wherein: the clutch component comprises a clutch rod, a middle-stage change gear arranged at one end of the clutch rod, a middle-stage change small gear coaxially arranged with the middle-stage change gear and a clutch mating piece arranged at the other end of the clutch rod; when the driving gear rotates along with the lock core assembly or the emergency assembly to be meshed with the power output gear set, one end of the clutch rod descends, the other end of the clutch rod ascends, and the middle-stage variable-speed wheel and the middle-stage variable-speed small wheel are arranged in a separated mode; when the driving gear rotates to be disengaged from the power output gear set along with the lock core assembly or the emergency assembly, the medium-speed change wheel and the medium-speed change small wheel are combined.

3. The transmission of claim 2, wherein: be equipped with first recess on the separation and reunion mating member, when drive gear rotated to breaking away from the meshing with power take off gear train along with lock core subassembly or emergent subassembly, clutch lever one end was located first recess.

4. A gearbox according to claim 3, characterised in that: the middle-stage variable-speed wheel is provided with a bulge, the middle-stage variable-speed small wheel is provided with a second groove which is combined with or separated from the bulge under the driving of the lock cylinder assembly or the emergency assembly, or the middle-stage variable-speed small wheel is provided with a bulge, and the middle-stage variable-speed wheel is provided with a second groove which is combined with or separated from the bulge under the driving of the lock cylinder assembly or the emergency assembly.

5. The transmission of claim 4, wherein: and auxiliary sliding grooves are formed in two sides of the first groove.

6. The transmission of claim 5, wherein: the end edges of the adjacent auxiliary chutes are tangentially arranged.

7. The transmission of claim 6, wherein: the protrusions are provided with frustum tables.

8. A gearbox according to any one of claims 2 to 7, wherein: the separation and reunion fitting piece is clutch gear, the lock core subassembly includes the lock core gear that lock core and peripheral lock core set up, the lock core drives lock core gear revolve, lock core gear drives clutch gear revolve.

9. The transmission of claim 8, wherein: the lock cylinder gear comprises a second meshing area meshed with the clutch gear and a second clearance area disengaged from the clutch gear, and when the driving gear rotates along with the lock cylinder component or the emergency component to be meshed with the power output gear set, the lock cylinder gear is meshed with the clutch gear; when the driving gear rotates to be disengaged from the power output gear set along with the lock cylinder assembly or the emergency assembly, the lock cylinder gear is disengaged from the clutch gear.

10. The transmission of claim 8, wherein: the emergency assembly comprises an emergency knob coaxially and fixedly arranged with the clutch gear, and the emergency knob drives the clutch gear to rotate.

11. The transmission of claim 8, wherein: the clutch assembly further comprises a first clutch spring for pressing down the middle-stage variable-speed wheel, a shaft sleeved with the middle-stage variable-speed wheel is a clutch shaft, and the first clutch spring is arranged between the middle-stage variable-speed wheel and the clutch shaft or a cover plate of the gearbox body; when drive gear rotated to and disengaged with power take off gear train along with lock core subassembly or emergent subassembly, separation and reunion fitting piece drive clutch lever is in steady state, first separation and reunion spring pushes down medium-grade change gear, medium-grade change gear combines with the setting of medium-grade variable speed steamboat.

12. The transmission of claim 11, wherein: one end of the middle-stage speed changing wheel is provided with an extending part, and one end of the clutch rod is abutted against the extending part; when the driving gear rotates to be meshed with the power output gear set along with the lock cylinder assembly or the emergency assembly, one end of the clutch rod is driven by the clutch gear to descend, the other end of the clutch rod ascends, the extending part is warped, and the middle-stage speed change wheel is separated from the middle-stage speed change small wheel.

13. The transmission of claim 8, wherein: the clutch assembly further comprises a torsion spring and a second clutch spring which is coaxially arranged with the middle-stage speed change wheel, and one end of the torsion spring is abutted against the clutch rod; when the driving gear rotates along with the lock core assembly or the emergency assembly to be disengaged from the power output gear set, the clutch gear drives the clutch rod to be in a stable state, the torsion spring is in a force accumulation state, and the second clutch spring is in a compressed state, so that the middle-stage speed change wheel and the middle-stage speed change small wheel are combined; when the driving gear rotates to be meshed with the power output gear set along with the lock cylinder assembly or the emergency assembly, the clutch gear drives one end of the clutch rod to descend, the other end of the clutch rod to ascend, the torsion spring is in a releasing state, and the second clutch spring is in a releasing state, so that the medium-speed change gear and the medium-speed change small gear are arranged in a separated mode.

14. The transmission of claim 2, wherein: the automatic power input gear set comprises a gear assembly, a worm and a worm wheel meshed with the worm, the gear assembly is provided with a front-stage speed change wheel which is coaxially and fixedly arranged with the worm wheel and meshed with a middle-stage speed change wheel, and the height of the front-stage speed change wheel is larger than or equal to the stroke of the middle-stage speed change wheel in the clutch process.