CN220133727U - Output mechanism, gear box and electronic lock - Google Patents

Abstract

The utility model belongs to the technical field of mechanical structures, and particularly relates to an output mechanism, a gear box and an electronic lock, wherein the output mechanism comprises an output gear, a transmission piece and an output lock tongue, the output gear is provided with a first meshing part and a second meshing part, the output gear is meshed with an external transmission mechanism through the first meshing part to rotate, the output gear is meshed with the transmission piece through the second meshing part to drive the transmission piece to linearly move, and the output lock tongue is elastically fixed with the transmission piece and can linearly move along with the transmission piece; the gearbox comprises an output mechanism, a transmission mechanism and a driving mechanism, wherein the transmission mechanism is arranged between the output mechanism and the driving mechanism, and the output mechanism and the driving mechanism are in meshed transmission with the transmission mechanism. The output mechanism, the gear box and the electronic lock provided by the utility model can simultaneously give consideration to the functions of motorized locking, unlocking and manual locking and unlocking.

Description

Output mechanism, gear box and electronic lock

Technical Field

The utility model belongs to the technical field of mechanical structures, and particularly relates to an output mechanism, a gear box and an electronic lock.

Background

Currently, electronic locks are widely used in various fields, such as automatic door opening structures of refrigerators, lock structures of glove boxes, intelligent door locks, and the like. The electronic lock comprises an output mechanism, a gear box and a driving part, wherein the gear box is usually composed of a series of gear transmission mechanisms, the gear box starts to rotate under the driving action of the driving part, and the output mechanism is in meshed transmission with the gear box to realize locking and unlocking actions. However, the use of the existing electronic lock is dependent on the normal energization of the driving member, and when power failure or other unexpected situations occur, the electronic lock cannot be used normally.

Disclosure of Invention

The embodiment of the utility model aims to provide an output mechanism, a gear box and an electronic lock, which are used for solving the technical problem that the electronic lock cannot simultaneously give consideration to the functions of motorized locking and unlocking and manual locking and unlocking in the prior art.

The first aspect of the embodiment of the utility model provides an output mechanism, which comprises an output gear, a transmission piece and an output lock tongue, wherein the output gear is provided with a first meshing part and a second meshing part, the output gear is meshed with an external transmission mechanism for rotation through the first meshing part, the output gear is meshed with the transmission piece through the second meshing part for transmission and drives the transmission piece to linearly move, and the output lock tongue is elastically fixed with the transmission piece and can linearly move along with the transmission piece.

In one embodiment of the first aspect, the profile of the output gear is provided with meshing teeth to form the first meshing portion, the output gear is internally provided with a thread groove to form the second meshing portion, the profile of the transmission member is provided with thread teeth for being in threaded engagement with the thread groove, and the transmission member is movable in the axial direction of the output gear through meshing transmission of the thread teeth and the thread groove.

In one embodiment of the first aspect, the output mechanism includes a housing, the output gear is rotatably mounted in the housing, the output lock tongue includes a lock head portion and a lock rod portion that are connected to each other, the lock head portion is in a non-cylindrical structure, the housing is correspondingly provided with a first telescopic hole through which the lock head portion passes, a shape of the first telescopic hole is adapted to a shape of the lock head portion, and the lock head portion and the first telescopic hole cooperate to form a first rotation limiting structure so as to limit rotation between the output lock tongue and the housing;

the transmission part is provided with a containing groove, the output lock tongue is arranged in the containing groove in a penetrating way, the transmission part is correspondingly provided with a second telescopic hole for the lock head part to penetrate out of the containing groove, the shape of the second telescopic hole is matched with that of the lock head part, and the lock head part and the second telescopic hole are matched to form a second rotation limiting structure so as to limit the rotation between the output lock tongue and the transmission part; and/or the lock rod part is of a non-cylindrical structure, the shape of the accommodating groove is matched with that of the lock rod part, and the lock rod part is matched with the accommodating groove to form a third rotation limiting structure so as to limit the rotation between the output lock tongue and the transmission piece.

In one embodiment of the first aspect, the output mechanism includes an elastic abutment assembly, and the elastic abutment assembly is configured to elastically fix the output bolt to the accommodating groove along a moving direction of the transmission member.

In one embodiment of the first aspect, the resilient abutment assembly comprises:

the abutting structure comprises an abutting flange and an abutting step, the abutting flange is arranged on the inner wall of the accommodating groove, the abutting step is formed at the joint of the lock head part and the lock rod part, and the abutting step is positioned in the accommodating groove and can abut against the abutting flange;

and one end of the elastic piece is connected with the end part of the lock rod part, and the other end of the elastic piece is connected with the shell so that the lock rod part is abutted between the abutting flange and the elastic piece.

In one embodiment of the first aspect, an auxiliary pull member is disposed on the lock rod portion, one end of the auxiliary pull member is connected to the lock rod portion, and the other end of the auxiliary pull member penetrates out of the housing.

In one embodiment of the first aspect, the lock lever portion is provided with a first groove and a second groove which are mutually communicated, a stop wall is formed between the first groove and the second groove, the auxiliary pull member comprises a pressing block and a pull member which are mutually connected, the pressing block is arranged in the first groove, the pull member penetrates through the second groove and penetrates out of the shell, and the pressing block is in butt joint with the stop wall.

In one embodiment of the first aspect, the thread teeth are distributed with at least two sections at intervals along the side circumference of the transmission member.

In a second aspect, a gearbox is provided, including output mechanism, drive mechanism and actuating mechanism, output mechanism is as above output mechanism, drive mechanism set up in output mechanism with actuating mechanism between, output mechanism with actuating mechanism all with the meshing transmission of drive mechanism.

In a third aspect, there is provided an electronic lock comprising a gearbox as described above.

The output mechanism, the gear box and the electronic lock provided by the utility model have the beneficial effects that:

compared with the prior art, the output mechanism disclosed by the utility model has the advantages that the first meshing part of the output gear is meshed with the external transmission mechanism, the output gear rotates under the action of the external transmission mechanism, and meanwhile, the transmission member can linearly move by utilizing the meshing of the second meshing part of the output gear and the transmission member, so that the output lock tongue elastically fixed with the transmission member can realize the action of extending and retracting, and further realize the motorized locking and unlocking functions; meanwhile, the extension and retraction actions of the output lock tongue can be directly realized by manually pushing and pulling the output lock tongue, so that the locking and unlocking functions can be realized by manual operation;

the gear box provided by the utility model adopts the output mechanism provided by the utility model, so that the gear box can take the functions of motorized locking and unlocking and manual locking and unlocking into consideration;

the electronic lock provided by the utility model adopts the gear box provided by the utility model, and can realize the functions of mechanical locking and unlocking and manual locking and unlocking, so that the electronic lock can be normally used even when power is off or other unexpected conditions occur.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a gear box according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a gearbox with a housing removed according to an embodiment of the present utility model;

FIG. 3 is an enlarged partial schematic view of FIG. 2A;

fig. 4 is a schematic cross-sectional structure of an output mechanism according to an embodiment of the present utility model;

fig. 5 is an exploded view of an output mechanism according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1-an output mechanism; 10-a housing; 11-an output gear; 12-a transmission member; 13-outputting a lock tongue;

100-upper shell cover; 101-a lower housing; 102-assembling the cavity; 103-bearing; 110-meshing teeth; 111-thread grooves; 112-a gasket; 113-jack-up structure; 120-thread teeth; 121-a receiving groove; 122-a second expansion aperture; 130-a lock head; 131-a lock lever portion; 132-auxiliary pull; 140-an abutment structure; 141-an elastic member;

1000-first telescopic hole; 1001-sealing ring; 1310-a first slot; 1311-a second groove; 1312-a stop wall; 1313-mounting ports; 1320-briquetting; 1321-pull; 1400-abutment steps; 1401-an abutment flange;

2-a transmission mechanism; 20-worm; 21-a first double gear; 22-a second double gear; 23-a clutch gear set;

230-clutch rotating shaft; 231-clutch bracket; 232-a spring; 233-clutch gear;

3-a driving mechanism; 30-motor.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 2 and fig. 4 to fig. 5, an output mechanism according to an embodiment of the present utility model will be described. The output mechanism 1 comprises an output gear 11, a transmission member 12 and an output lock tongue 13, wherein the output gear 11 is provided with a first meshing part and a second meshing part, the output gear 11 is meshed with an external transmission mechanism for rotation through the first meshing part, the output gear 11 is meshed with the transmission member 12 for transmission through the second meshing part and drives the transmission member 12 to linearly move, and the output lock tongue 13 is elastically fixed with the transmission member 12 and can linearly move along with the transmission member 12.

Compared with the prior art, the output mechanism 1 provided by the utility model can realize the motorized locking and unlocking functions by being matched with the external transmission mechanism 2, and can realize the locking and unlocking functions by manual operation.

Specifically, the working principle of motorized locking and unlocking is as follows: the first meshing part of the output gear 11 is meshed with an external transmission mechanism, the output gear 11 rotates under the action of the external transmission mechanism, and at the same time, the transmission member 12 can linearly move by utilizing the meshing of the second meshing part of the output gear 11 and the transmission member 12, so that the output lock tongue 13 elastically fixed with the transmission member 12 can realize the action of extending and retracting, and further realize the functions of mechanically locking and unlocking.

The working principle of manual locking and unlocking is as follows: because the transmission piece 12 is only elastically fixed with the output lock tongue 13, the output lock tongue 13 can be stretched out and retracted by manually pushing and pulling the output lock tongue 13, namely, the locking and unlocking functions are realized by manual operation.

Therefore, the output mechanism 1 provided by the utility model has the great advantage that the manual locking and unlocking functions of the output mechanism 1 do not need to depend on a clutch mechanism, and the manual locking and unlocking functions of the output mechanism 1 are not affected even if the output gear 11 is in a meshed state with the external transmission mechanism 2.

In another embodiment of the present utility model, as shown in fig. 2 and 4 to 5, the outer profile of the output gear 11 is provided with the engaging teeth 110 to form the first engaging portion, the inner portion of the output gear 11 is provided with the thread groove 111 to form the second engaging portion, the outer profile of the transmission member 12 is provided with the thread teeth 120 for being in threaded engagement with the thread groove 111, and the transmission member 12 can move along the axial direction of the output gear 11 through the engagement transmission of the thread teeth 120 and the thread groove 111.

The output gear 11 is meshed with the external transmission mechanism 2 by utilizing the meshing teeth 110 of the outline of the output gear, the output gear 11 rotates under the transmission of the external transmission mechanism 2, meanwhile, the transmission member 12 in threaded fit with the thread groove 111 of the output gear 11 moves along the axial direction of the output gear 11, and the reciprocating motion of the transmission member 12 can be realized by adjusting the steering of the external transmission mechanism 2 to the output gear 11, so that the output lock tongue 13 moving along with the transmission member 12 can move along the axial direction of the output gear 11, and further the retracting and extending actions of the output lock tongue 13 are realized, namely the motorized locking and unlocking functions are realized.

In addition, the output mechanism 1 provided by the utility model uses the output gear 11 as a transmission member connected with the external transmission mechanism 2, meanwhile, the output gear 11 also serves as a transmission member matched with the transmission member 12, and the transmission member 12 is accommodated in the output gear 11 by using the thread groove 111 of the output gear 11, so that the whole structure of the output mechanism 1 is more compact, and the space occupation ratio of the output mechanism 1 is greatly saved.

In another embodiment of the present utility model, the thread teeth 120 of the driving member 12 are annularly distributed along the side circumference of the driving member 12, i.e., the thread teeth 120 herein are looped along the side Zhou Wanzheng of the driving member 12. Preferably, in another embodiment of the present utility model, referring to fig. 5, the thread teeth 120 of the transmission member 12 are spaced apart along the side circumference of the transmission member 12 by at least two segments, specifically, the thread teeth 120 are spaced apart along the side circumference of the transmission member 12 by two segments, and the two segments of thread teeth 120 are located at opposite sides of the transmission member 12. Alternatively, the thread teeth 120 may be three sections spaced apart along the side circumference of the driving member 12, and the three sections of thread teeth 120 may be uniformly spaced apart along the side circumference of the driving member 12. The thread teeth 120 may be four segments spaced along the side circumference of the driving member 12, and the four segments of thread teeth 120 may be uniformly distributed along four sides of the side circumference of the driving member 12. Correspondingly, when the number of segments of the thread tooth 120 is more, and so on. With this structure, the structure of the screw teeth 120 can be reduced and the cost can be reduced on the basis of ensuring that the transmission member 12 can be engaged with the screw grooves 111 for transmission.

In another embodiment of the present utility model, referring to fig. 4 and 5, the output mechanism 1 includes a housing 10, an output gear 11 is rotatably mounted in the housing 10, the output lock tongue 13 includes a lock head 130 and a lock rod 131 that are connected to each other, the lock head 130 has a non-cylindrical structure, the housing 10 is correspondingly provided with a first telescopic hole 1000 through which the lock head 130 passes, the shape of the first telescopic hole 1000 is adapted to the shape of the lock head 130, and the lock head 130 cooperates with the first telescopic hole 1000 to form a first rotation limiting structure to limit rotation between the output lock tongue 13 and the housing 10. The transmission member 12 is provided with a containing groove 121, the output lock tongue 13 is arranged in the containing groove 121 in a penetrating manner, the transmission member 12 is correspondingly provided with a second telescopic hole 122 for the lock head part 130 to penetrate out of the containing groove 121, the shape of the second telescopic hole 122 is matched with that of the lock head part 130, and the lock head part 130 and the second telescopic hole 122 are matched to form a second rotation limiting structure so as to limit rotation between the output lock tongue 13 and the transmission member 12. The lock head 130 passes through the second telescopic hole 122 to pass through the accommodating groove 121 and can continuously pass through the casing 10 for being matched with an external structure to realize locking and unlocking functions. At least a part of the lock lever portion 131 is accommodated in the accommodation groove 121.

The rotation of the output bolt 13 relative to the housing 10 can be limited by the fit of the non-cylindrical lock head 130 and the first telescopic hole 1000 with the shape being adapted, and at the same time, the rotation of the transmission member 12 relative to the output bolt 13 can be limited by the fit of the non-cylindrical lock head 130 and the second telescopic hole 122 of the adapted transmission member 12, that is, the rotation of the transmission member 12 relative to the housing 10 is limited by the fit of the first rotation limiting structure and the second rotation limiting structure, so that the transmission member 12 can move along the axial direction of the output gear 11 when the output gear 11 rotates.

In addition, the output lock tongue is accommodated in the accommodating groove 121 of the transmission member 12, so that the structure of the output mechanism 1 is more compact, and the space occupation ratio of the output mechanism 1 is saved.

In other embodiments, the locking bar 131 may be configured in a non-cylindrical structure, the shape of the accommodating groove 121 is adapted to the shape of the locking bar 131, and the locking bar 131 and the accommodating groove 121 cooperate to form a third rotation limiting structure to limit rotation between the output bolt 13 and the transmission member 12. With this structure, the output tongue 13 can be restrained from rotating relative to the transmission member 12. The third rotation limiting structure and the first rotation limiting structure cooperate to limit the rotation of the transmission member 12 relative to the housing 10. It should be added that the shape of the accommodating groove 121 extends to a certain height in the axial direction, so as to ensure that the output bolt 13 can move up and down in the accommodating groove 121.

In another embodiment of the present utility model, referring to fig. 4 and 5, a sealing ring 1001 is disposed at the first telescopic hole 1000 of the housing 10, and the sealing ring 1001 is sleeved on the output lock tongue 13 and abuts against the housing 10, so as to prevent water from leaking from the outside into the housing 10.

In another embodiment of the present utility model, referring to fig. 4, the housing 10 includes an upper housing cover 100 and a lower housing 101, the upper housing cover 100 is matched with the lower housing 101 up and down and forms an assembling cavity 102 therein, and the output gear 11 is rotatably disposed in the assembling cavity 102. Further, a bearing 103 is mounted in the assembly chamber 102, and an outer ring of the bearing 103 is fixedly connected to the lower housing 101, and an inner ring of the bearing 103 is fixedly connected to the output gear 11, so that the output gear 11 can be rotatably disposed in the housing 10. Further, a protruding ring protruding radially is provided on the outer circumference of the output gear 11, and the engaging teeth 110 are provided on the outer contour of the protruding ring, and the bearing 103 is juxtaposed up and down with the protruding ring and is fitted over the outer circumference of the output gear 11.

In another embodiment of the present utility model, referring to fig. 4, a spacer 112 is disposed between the output gear 11 and the housing 10, and the spacer 112 is used to limit the output gear 11, so as to avoid the possibility that the output gear 11 is easy to move up and down. Meanwhile, a gasket groove (not shown) adapted to the gasket 112 is formed on the housing 10, so that the gasket 112 is prevented from being displaced.

In another embodiment of the present utility model, referring to fig. 4, a jacking structure 113 is disposed on an end surface of the output gear 11 near the gasket 112, and the output gear 11 contacts the gasket 112 through the jacking structure 113, so that friction between the output gear 11 and the gasket 112 can be reduced when the output gear 11 rotates.

In another embodiment of the present utility model, referring to fig. 4 and 5, the output mechanism 1 includes an elastic abutting component for elastically fixing the output bolt 13 to the accommodating groove 121 along the moving direction of the transmission member 12 (the axial direction of the output gear 11).

Under the condition of locking and unlocking in a maneuvering way, the output lock tongue 13 and the transmission piece 12 are fixed in a propping way by adopting an elastic propping component, so that the output lock tongue 13 can synchronously move with the transmission piece 12, and further the output lock tongue 13 can extend and retract.

Under the condition of manual locking and unlocking, the elastic locking assembly is only used for locking and fixing, and the external force is applied, so that the elastic fixing of the elastic locking assembly to the output lock tongue 13 can be relieved, the output lock tongue 13 can be manually pushed and pulled, and the manual locking and unlocking actions are completed.

In another embodiment of the present utility model, referring to fig. 4 and 5, the elastic abutting assembly includes an abutting structure 140 and an elastic member 141, and the abutting structure 140 and the elastic member 141 cooperate to elastically fix the locking lever 131 to the transmission member 12. Specifically, the abutting structure 140 includes an abutting flange 1401 and an abutting step 1400, the abutting flange 1401 is provided on the inner wall of the accommodating groove 121, the abutting step 1400 is formed at the connection portion between the lock head portion 130 and the lock lever portion 131, and the abutting step 1400 is located in the accommodating groove 121 and can abut against the abutting flange 1401. One end of the elastic member 141 is connected to an end of the lock lever portion 131, and the other end of the elastic member 141 is connected to the housing 10 so that the lock lever portion 131 is abutted between the abutment flange 1401 and the elastic member 141.

Under the condition of locking and unlocking in a motor way, the abutting step 1400 of the output lock tongue 13 is abutted against the abutting flange 1401 by the elastic piece 141, when the transmission piece 12 moves upwards under the transmission of the output gear 11, the elastic piece 141 can always abut against the output lock tongue 13 to move upwards together with the transmission piece 12, when the transmission piece 12 moves downwards under the transmission of the output gear 11, the transmission piece 12 presses the abutting step 1400 through the abutting flange 1401, and meanwhile, the end face of the lock rod part 131 presses the elastic piece 141 to move downwards together.

Under the condition of manual locking and unlocking, the output lock tongue 13 can be retracted by manually pulling the output lock tongue 13 to move downwards, the elastic piece 141 can be compressed while the output lock tongue 13 moves downwards, and the output lock tongue 13 is reset and extended by canceling the external force (releasing the output lock tongue 13) and applying elastic force to the output lock tongue 13 by the elastic piece 141.

In another embodiment of the present utility model, referring to fig. 4 and 5, an auxiliary pull member 132 is disposed on the lock rod portion 131, one end of the auxiliary pull member 132 is connected to the lock rod portion 131, and the other end of the auxiliary pull member 132 penetrates out of the housing 10.

Under the condition that manual locking and unlocking are needed, the auxiliary pulling piece 132 is pulled to push and pull the output lock tongue 13, so that the output lock tongue 13 can be extended and retracted.

In another embodiment of the present utility model, the lock lever portion 131 is provided with a first slot 1310 and a second slot 1311 which are mutually communicated, a stop wall 1312 is formed between the first slot 1310 and the second slot 1311, the auxiliary pull member 132 includes a pressing block 1320 and a pull member 1321 which are mutually connected, the pressing block 1320 is disposed in the first slot 1310, the pull member 1321 passes through the second slot 1311 and passes out of the housing 10, and the pressing block 1320 abuts against the stop wall 1312.

The auxiliary pulling piece 132 is caught in the first groove 1310 by abutting the pressing piece 1320 against the stopper wall 1312, and the pulling piece 1321 which is pulled out of the housing 10 is pulled by a person, and the pressing piece 1320 presses the stopper wall 1312 of the output tongue 13 and moves downward. The auxiliary pulling piece 132 and the output lock tongue 13 adopt the connecting structure, so that the connecting stability of the auxiliary pulling piece and the output lock tongue 13 can be improved.

In another embodiment of the present utility model, the pull member 1321 may be a pull rod or a pull cord, and in this embodiment, the pull member 1321 is preferably a pull cord, so as to make the installation of the auxiliary pull member 132 and the application of the output mechanism 1 more flexible. The pull rope can be a steel wire rope.

In another embodiment of the present utility model, a mounting port 1313 is formed on a side circumference of the locking bar portion 131 of the output locking tongue 13, the mounting port 1313 is in communication with the first slot 1310, and the mounting port 1313 is used for the pressing block 1320 of the auxiliary pulling member 132 to pass through and be placed in the first slot 1310, so as to facilitate taking and placing the pressing block 1320.

Referring to fig. 1 to 3, the present utility model further provides a gear box, which includes an output mechanism 1, a transmission mechanism 2, and a driving mechanism 3. The output mechanism 1 is the output mechanism 1 described above. The transmission mechanism 2 is arranged between the output mechanism 1 and the driving mechanism 3, and the output mechanism 1 and the driving mechanism 3 are meshed with the transmission mechanism 2 for transmission.

The gear box provided by the utility model adopts the output mechanism 1 provided by the utility model, so that the gear box can realize the functions of mechanical locking and unlocking and manual locking and unlocking.

In another embodiment of the present utility model, referring to fig. 2, the driving mechanism 3 is specifically a motor 30, and further a dc motor 30 may be used.

Because the gear box provided by the utility model adopts the output mechanism 1 provided by the utility model, the manual locking and unlocking functions can be realized by directly manually pushing and pulling the output lock tongue 13, and therefore, the transmission mechanism 2 can adopt a common gear structure as the transmission mechanism 2 and can also adopt a clutch transmission mechanism.

Specifically, when a common gear structure (not shown in the figure) is adopted as a transmission mechanism, the transmission mechanism comprises a worm and a transmission gear, the worm is arranged on a rotating shaft of the motor, the transmission gear is a duplex gear, the transmission gear comprises an inclined tooth part and a straight tooth part, the inclined tooth part is meshed with the worm, and the straight tooth part is meshed with the output gear. After the motor is started, power is transmitted to the output gear through the worm and the transmission gear in sequence.

Referring to fig. 2 and 3, when a clutch transmission is used as the transmission 2, the clutch transmission, that is, the clutch transmission and the output 1 have an engaged state and a disengaged state therebetween. When the clutch transmission mechanism is in a meshed state with the output mechanism 1, the clutch transmission mechanism is in meshed transmission with the output gear 11; when the clutch transmission mechanism is in a disengaged state with the output mechanism 1, the clutch transmission mechanism is disengaged from the output gear 11.

In this embodiment, the clutch transmission mechanism is a clutch transmission mechanism in the prior art, for example, a clutch transmission mechanism disclosed in chinese patent application No. 201910269296. Specifically, the clutch transmission mechanism comprises a worm 20, a first duplex gear 21, a second duplex gear 22 and a clutch gear set 23 which are arranged on the rotating shaft of the motor 30, wherein the first duplex gear 21 is meshed with the worm 20 and the second duplex gear 22 for transmission. The clutch gear set 23 comprises a clutch rotating shaft 230, a clutch bracket 231, a spring 232 and a clutch gear 233, wherein the clutch bracket 231 is elliptical, one side of the clutch bracket 231 is coaxially arranged with the second duplex gear 22, the other side of the clutch bracket 231 is fixedly arranged with the clutch rotating shaft 230, the spring 232 is sleeved on the clutch rotating shaft 230, the clutch gear 233 is rotatably sleeved on the clutch rotating shaft 230, the spring 232 presses the clutch gear 233 on the clutch bracket 231 through elasticity, and the clutch gear 233 can simultaneously be meshed with the second duplex gear 22 and the output gear 11 for transmission.

When the motor 30 is started, the worm 20 drives the first duplex gear 21 to rotate, the first duplex gear 21 drives the second duplex gear 22 to rotate, and meanwhile, the clutch support 231 coaxially installed with the first duplex gear 21 rotates, so that the clutch gear 233 installed on the clutch support 231 can rotate around the second duplex gear 22 like a planet until being meshed with the output gear 11, and meanwhile, the clutch gear 233 rotates under the drive of the second duplex gear 22, and further drives the output gear 11 to rotate. Forward and reverse rotation of the output gear 11 is realized by switching forward and reverse rotation of the motor 30, so that upward extension or downward retraction of the output lock tongue 13 is realized, and further, the functions of motorized locking and unlocking are realized. When the clutch bracket 231 rotates until the clutch gear 233 is disengaged from the output gear 11, the output gear 11 can freely rotate at this time, so as to facilitate manual locking and unlocking.

The utility model also provides an electronic lock comprising the gear box.

The electronic lock provided by the utility model adopts the gear box provided by the utility model, and can realize the functions of mechanical locking and unlocking and manual locking and unlocking, so that the electronic lock can be normally used even when power is off or other unexpected conditions occur.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides an output mechanism, its characterized in that includes output gear, driving medium and output spring bolt, output gear has first meshing portion and second meshing portion, output gear passes through first meshing portion and external transmission mechanism meshing rotation, output gear pass through second meshing portion with the driving medium meshing transmission drives driving medium rectilinear movement, output spring bolt with the driving medium elastic fixation and can follow driving medium rectilinear movement.

2. An output mechanism as claimed in claim 1, wherein the profile of the output gear is provided with engagement teeth to form the first engagement portion, the output gear is internally provided with a thread groove to form the second engagement portion, the profile of the transmission member is provided with thread teeth for screw-fitting with the thread groove, and the transmission member is movable in the axial direction of the output gear by engagement transmission of the thread teeth with the thread groove.

3. The output mechanism as claimed in claim 2, wherein the output mechanism comprises a housing, the output gear is rotatably mounted in the housing, the output lock tongue comprises a lock head part and a lock rod part which are connected with each other, the lock head part is of a non-cylindrical structure, the housing is correspondingly provided with a first telescopic hole for the lock head part to pass through, the shape of the first telescopic hole is matched with that of the lock head part, and the lock head part is matched with the first telescopic hole to form a first rotation limiting structure so as to limit rotation between the output lock tongue and the housing;

the transmission part is provided with a containing groove, the output lock tongue is arranged in the containing groove in a penetrating way, the transmission part is correspondingly provided with a second telescopic hole for the lock head part to penetrate out of the containing groove, the shape of the second telescopic hole is matched with that of the lock head part, and the lock head part and the second telescopic hole are matched to form a second rotation limiting structure so as to limit the rotation between the output lock tongue and the transmission part; and/or the lock rod part is of a non-cylindrical structure, the shape of the accommodating groove is matched with that of the lock rod part, and the lock rod part is matched with the accommodating groove to form a third rotation limiting structure so as to limit the rotation between the output lock tongue and the transmission piece.

4. An output mechanism as claimed in claim 3, wherein the output mechanism includes an elastic abutment assembly for elastically securing the output dog to the receiving slot in a direction of movement of the driving member.

5. The output mechanism of claim 4, wherein said resilient abutment assembly comprises:

the abutting structure comprises an abutting flange and an abutting step, the abutting flange is arranged on the inner wall of the accommodating groove, the abutting step is formed at the joint of the lock head part and the lock rod part, and the abutting step is positioned in the accommodating groove and can abut against the abutting flange;

and one end of the elastic piece is connected with the end part of the lock rod part, and the other end of the elastic piece is connected with the shell so that the lock rod part is abutted between the abutting flange and the elastic piece.

6. An output mechanism as claimed in any one of claims 3 to 5, wherein the locking lever portion is provided with an auxiliary pull member, one end of the auxiliary pull member is connected to the locking lever portion, and the other end of the auxiliary pull member passes out of the housing.

7. The output mechanism as set forth in claim 6, wherein said locking bar portion is provided with a first slot and a second slot which are in communication with each other, a stopper wall is formed between said first slot and said second slot, said auxiliary pull member comprises a pressing block and a pull member which are connected with each other, said pressing block is disposed in said first slot, said pull member passes through said second slot and passes out of said housing, and said pressing block abuts against said stopper wall.

8. An output mechanism as claimed in any one of claims 2 to 5 and 7 wherein said screw threads are spaced apart along a side periphery of said drive member by at least two segments.

9. A gear box, characterized by comprising an output mechanism, a transmission mechanism and a driving mechanism, wherein the output mechanism is the output mechanism according to any one of claims 1-8, the transmission mechanism is arranged between the output mechanism and the driving mechanism, and the output mechanism and the driving mechanism are meshed with the transmission mechanism for transmission.

10. An electronic lock comprising a gearbox according to claim 9.