CN212867187U

CN212867187U - Speed reducer with clutch mechanism for lock

Info

Publication number: CN212867187U
Application number: CN202021514185.5U
Authority: CN
Inventors: 厉毅; 华宏伟
Original assignee: Zhejiang Laiyou Technology Co ltd
Current assignee: Zhejiang Laiyou Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-02
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to a tool to lock is with speed reduction device who takes clutching mechanism, including reducing gear box, reduction gear group, driving motor and clutching mechanism, reduction gear group sets up in the reducing gear box, clutching mechanism and driving motor all set up on the reducing gear box, and driving motor's output passes through reduction gear group and is connected with the clutching mechanism transmission. Compared with the prior art, the problem of insufficient space of the lock body is reasonably solved by integrally designing the reduction gear set and the clutch mechanism; the power clutch of the manual mechanism and the electric mechanism can be realized, and the structure is simple, stable and reliable; meanwhile, the lock tongue can be matched with a rack driving mechanism, so that the moving direction of the lock tongue is consistent with the power transmission direction, and the power transmission efficiency is high.

Description

Speed reducer with clutch mechanism for lock

Technical Field

The utility model belongs to intelligence lock articles for use field, specifically speaking relates to a speed reduction gear with clutching mechanism for tool to lock.

Background

The reducer is a common power conversion mechanism and has different application requirements in different application fields. In an automatic control system, the situation that manual power output and electric power output act on a load simultaneously often exists, at this time, if the electric power is not separated, the manual torque force needs to be multiplied by more than the load torque force to rotate the load, when the load torque force is large enough, the corresponding electric driving force and self-locking force are also large, and after the load force and the self-locking force are superposed, the manual rotation load is very laborious and even cannot rotate. In the design of the full-automatic lock body, the problem is the first problem, and besides the problem that the clutch of the manual power output and the electric power output needs to be solved, the problem of efficiency and the problem that the assembly can be achieved in structural size also need to be solved. The existing clutch technology of the full-automatic lock body comprises two directions of manual clutch and automatic clutch, wherein the manual clutch refers to the mode that a power gear is separated from the clutch through external force generated manually, the automatic clutch adopts the principle of spring friction force, when the manual force is smaller than the friction force, a load rotates along with electric power, when the manual force is larger than the friction force, the load rotates along with the manual power, the torque output by the mode is limited by the friction force, and other technical means are required to reduce the manual force in practical application; another way of automatic clutch is to use a balance wheel technique, i.e. a balance wheel is arranged in the speed reducing mechanism, the balance wheel rotates to the next gear under inertia and combines with the next gear to output power when the electric power disappears, then the balance wheel loses the inertia force and disengages from the next gear when the electric power disappears, but this way has a problem that when the electric power drives the load to rotate to the position limit of the load and can not rotate reversely, the balance wheel and the next gear are in an engaged state, at this time, if the motor is damaged and can not rotate, the manual force and the automatic force can not realize the clutch, which is a serious safety hazard. Therefore, compared with two technical characteristics of manual operation and automatic operation, manual operation is the most reliable mode, only one design problem exists, namely the selection of power and the design of a speed reducer must meet the assembly requirement of a lock body space, in order to reduce the volumes of the power and the speed reducer, the currently adopted design scheme mainly adopts a worm and gear speed reducing mechanism or a planetary speed reducer matched with a bevel gear and the like, and the two modes have the main problems of low efficiency, small output torque or high energy consumption under the same output torque force.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a tool to lock is with decelerator of taking clutching mechanism for solve current full-automatic electronic lock body consumption big, power is little and poor stability's not enough.

The speed reduction device with the clutch mechanism for the lockset comprises a reduction gearbox, a reduction gear set, a driving motor and a clutch mechanism, wherein the reduction gear set is arranged in the reduction gearbox, the clutch mechanism and the driving motor are both arranged on the reduction gearbox, and the output end of the driving motor is in transmission connection with the clutch mechanism through the reduction gear set.

Further, reduction gear set includes starting gear, multistage reduction gear subassembly and power take off gear, clutching mechanism includes separation and reunion axle, output gear, separation and reunion circle and separation and reunion pressure spring, starting gear sets up at the driving motor output and is connected with power take off gear transmission through multistage reduction gear subassembly, output gear, separation and reunion circle and separation and reunion pressure spring are all established on the separation and reunion epaxially, power take off gear also overlaps and establishes on the separation and reunion axle and is connected with separation and reunion circle transmission through power take off shaft.

Still further, multistage reduction gear assembly includes first order reduction gear set, second level reduction gear set, third reduction gear set and fourth reduction gear set, the gear that starts step is connected with first order reduction gear set transmission, first order reduction gear set, second level reduction gear set, third reduction gear set and fourth reduction gear set are the transmission in proper order and are connected, fourth reduction gear set is connected with power take off gear transmission, and second level reduction gear set and the coaxial setting of fourth reduction gear set simultaneously, third reduction gear set and the coaxial setting of power take off gear.

Furthermore, the clutch ring is combined with the output gear under the action of the clutch pressure spring, and the clutch ring is driven to rotate through the power output shaft so as to drive the output gear to synchronously rotate; after the clutch ring is pushed by external force and is separated from the output gear, the output gear does not rotate along with the power output shaft any more.

Furthermore, the clutch ring is sleeved on the power output shaft, at least one flat position is arranged on the power output shaft, the clutch ring is provided with a bulge matched with the flat position, and the flat position can ensure that the clutch ring rotates synchronously with the power output shaft and can also ensure that the clutch ring can move axially along the power output shaft.

Furthermore, the reduction gearbox comprises a first shell and a second shell, the clutch mechanism is arranged on one side of the first shell, the driving motor is arranged on one side of the second shell, and the reduction gear set is arranged in a containing space formed by combining the first shell and the second shell.

Compared with the prior art, the tool to lock is with speed reduction gear who takes clutching mechanism as follows technical effect:

1. based on the existing structure of the standard matching lock body, the problem of insufficient space of the lock body is reasonably solved by integrally designing the reduction gear set and the clutch mechanism, and the practical requirement is met;

2. the power clutch of the manual mechanism and the electric mechanism can be realized, and the structure is simple, stable and reliable;

3. the bolt can be matched with the rack driving mechanism, so that the moving direction of the bolt is consistent with the power transmission direction, and the power transmission efficiency is high.

Drawings

FIG. 1 is a schematic perspective view of a reduction gear with a clutch mechanism for a lock;

FIG. 2 is an exploded view of a lock with a reduction gear box housing with a clutch mechanism and a position of the clutch mechanism;

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The following description is of the preferred embodiment of the present invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the invention. The protection scope of the present invention is subject to the limitations defined by the appended claims.

The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.

Examples

As shown in fig. 1-2, a speed reducer with a clutch mechanism for a lock comprises a reduction gearbox 5, a reduction gear set 6, a driving motor 7 and the clutch mechanism, wherein the reduction gear set 6 is arranged in the reduction gearbox 5, the clutch mechanism and the driving motor 7 are both arranged on the reduction gearbox 5, and the output end of the driving motor 7 is in transmission connection with the clutch mechanism through the reduction gear set 6.

Preferably, reduction gear set 6 includes starting gear 7a, multistage reduction gear assembly and power take off gear 6e, clutching mechanism includes separation and reunion axle 1, output gear 2, separation and reunion circle 3 and separation and reunion pressure spring 4, starting gear 7a sets up at driving motor 7 output and is connected with power take off gear 6e transmission through multistage reduction gear assembly, output gear 2, separation and reunion circle 3 and separation and reunion pressure spring 4 are all established on separation and reunion axle 1, power take off gear 6e also overlaps and establishes on separation and reunion axle 1 and be connected with separation and reunion circle 3 transmission through power take off shaft 6 f.

More preferably, the multistage reduction gear assembly comprises a first reduction gear set 6a, a second reduction gear set 6b, a third reduction gear set 6c and a fourth reduction gear set 6d, the starting gear 7a is in transmission connection with the first reduction gear set 6a, the second reduction gear set 6b, the third reduction gear set 6c and the fourth reduction gear set 6d are in transmission connection in sequence, and the fourth reduction gear set 6d is in transmission connection with a power output gear 6 e.

As shown in fig. 2, the first-stage reduction gear set 6a is provided with a first large tooth 6a1 and a first small tooth 6a2, the second-stage reduction gear set 6b is provided with a second large tooth 6b1 and a second small tooth 6b2, the third-stage reduction gear set 6c is provided with a third large tooth 6c1 and a third small tooth 6c2, and the fourth-stage reduction gear set 6d is provided with a fourth large tooth 6d1 and a fourth small tooth 6d 2.

The first large tooth 6a1 is meshed with a starting gear 7a, the first stage small tooth 6a2 is meshed with the second stage large tooth 6b1, the second stage small tooth (6b2) is meshed with the third stage large tooth (6c1), the third stage small tooth 6c2 is meshed with the fourth stage large tooth (6d1), the fourth stage small tooth (6d2) is meshed with a power output gear 6e, meanwhile, the second stage reduction gear set 6b is coaxially arranged with the fourth stage reduction gear set 6d, and the third stage reduction gear set 6c is coaxially arranged with the power output gear 6e, so that the required structural space can be reduced by adopting the structural design of coaxial distribution of the reduction gear sets with different rotating speeds.

More preferably, the clutch ring 3 is combined with the output gear 2 under the action of the clutch compression spring 4, and the clutch ring 3 is driven to rotate through the power output shaft 6f so as to drive the output gear 2 to synchronously rotate; after the clutch ring 3 is pushed by external force and separated from the output gear 2, the output gear 2 does not rotate along with the power output shaft 6 f.

More preferably, the clutch ring 3 is sleeved on the power output shaft 6f, at least one flat position 6f1 is arranged on the power output shaft 6f, the clutch ring 3 is provided with a protrusion matched with the flat position 6f1, and the flat position 6f1 can ensure that the clutch ring 3 rotates synchronously with the power output shaft 6f and can also ensure that the clutch ring 3 can move axially along the power output shaft 6 f.

More preferably, the reduction gearbox 5 comprises a first shell 5a and a second shell 5b, the clutch mechanism is arranged on one side of the first shell 5a, the driving motor 7 is arranged on one side of the second shell 5b, and the reduction gear set 6 is arranged in a containing space formed by combining the first shell 5a and the second shell 5 b.

When the clutch mechanism works, the power output gear 6e rotates, the clutch ring 3 positioned on the rotating shaft of the power output gear 6e is combined with the clutch gear 2 under the action of the clutch spring 4, the power output gear 6e drives the clutch ring 3 to rotate when rotating, and the clutch ring 3 drives the clutch gear 2 to rotate; when the external force pushes the clutch ring 3 to overcome the spring force of the clutch spring 4 to move towards the disengaging direction, so that the clutch ring 3 is disengaged from the clutch gear 2, the clutch gear 2 does not rotate along with the clutch shaft any more. The output shaft of the power output gear 6e is provided with a flat position, the clutch ring 3 is loosely matched with the output shaft of the power output gear 6e, the clutch ring 3 can move along the output shaft of the power output gear 6e in the radial direction, the clutch ring 3 and the power output gear 6e synchronously rotate through a deviation structure, the clutch gear 2 and the power output gear 6e are positioned on the third-stage reduction gear set 6c, the clutch gear 2 and the power output gear 6e are not directly connected and driven, and synchronous rotation is formed through meshing of the clutch ring 3.

In the lockset structure, the output gear 2 is in transmission connection with a bolt driving rack of the door lock, the output of the driving motor 7 can be transmitted to the output gear 2 through a clutch mechanism after passing through the reduction gear set 6 in the working process, and the output gear 2 drives the bolt of the door lock to lock or open the door; the clutch ring 3 is connected with a transmission piece for manually opening the door, when the door lock is opened by a key, the transmission piece drives the clutch ring 3 to be separated from the output gear 2, and the manual key is normally used for controlling the lock tongue of the door lock to lock the door or open the door.

As can be seen from the above description of the embodiments of the present invention, the present invention has the following technical effects:

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a speed reduction gear of taking clutching mechanism for tool to lock which characterized in that: the automatic clutch device is characterized by comprising a reduction gearbox (5), a reduction gear set (6), a driving motor (7) and a clutch mechanism, wherein the reduction gear set (6) is arranged in the reduction gearbox (5), the clutch mechanism and the driving motor (7) are both arranged on the reduction gearbox (5), and the output end of the driving motor (7) is in transmission connection with the clutch mechanism through the reduction gear set (6).

2. A reduction gear with a clutch mechanism for a lock according to claim 1, wherein: reduction gear group (6) are including starting gear (7a), multistage reduction gear subassembly and power take off gear (6e), clutching mechanism includes separation and reunion axle (1), output gear (2), separation and reunion circle (3) and separation and reunion pressure spring (4), starting gear (7a) set up and are connected with power take off gear (6e) transmission at driving motor (7) output and through multistage reduction gear subassembly, output gear (2), separation and reunion circle (3) and separation and reunion pressure spring (4) are all established on separation and reunion axle (1), power take off gear (6e) also establish on separation and reunion axle (1) and be connected with separation and reunion circle (3) transmission through power take off shaft (6 f).

3. A reduction gear with a clutch mechanism for a lock according to claim 2, wherein: the multi-stage reduction gear assembly comprises a first-stage reduction gear set (6a), a second-stage reduction gear set (6b), a third-stage reduction gear set (6c) and a fourth-stage reduction gear set (6d), the starting gear (7a) is in transmission connection with the first-stage reduction gear set (6a), the second-stage reduction gear set (6b), the third-stage reduction gear set (6c) and the fourth-stage reduction gear set (6d) are in transmission connection in sequence, and the fourth-stage reduction gear set (6d) is in transmission connection with a power output gear (6 e); meanwhile, the second-stage reduction gear set (6b) and the fourth-stage reduction gear set (6d) are coaxially arranged, and the third-stage reduction gear set (6c) and the power output gear (6e) are coaxially arranged.

4. A reduction gear with a clutch mechanism for a lock according to claim 2 or 3, wherein: the clutch ring (3) is combined with the output gear (2) under the action of the clutch pressure spring (4), and the clutch ring (3) is driven to rotate through the power output shaft (6f) so as to drive the output gear (2) to synchronously rotate; after the clutch ring (3) is pushed by external force and is separated from the output gear (2), the output gear (2) does not rotate along with the power output shaft (6 f).

5. A reduction gear with a clutch mechanism for a lock according to claim 2 or 3, wherein: clutch ring (3) cover is established on power output shaft (6f), power output shaft (6f) is last to be provided with a flat position (6f1) at least, clutch ring (3) are provided with the arch of mutually supporting with flat position (6f1), flat position (6f1) can guarantee clutch ring (3) follow power output shaft (6f) synchronous revolution, also can guarantee that clutch ring (3) can follow power output shaft (6f) axial displacement.

6. A reduction gear with a clutch mechanism for a lock according to any one of claims 1 to 3, wherein: the reduction gearbox (5) comprises a first shell (5a) and a second shell (5b), the clutch mechanism is arranged on one side of the first shell (5a), the driving motor (7) is arranged on one side of the second shell (5b), and the reduction gear set (6) is arranged in a containing space formed by combining the first shell (5a) and the second shell (5 b).