CN212359382U

CN212359382U - Novel motor clutch mechanism for fingerprint lock

Info

Publication number: CN212359382U
Application number: CN202020925550.5U
Authority: CN
Inventors: 舒金伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-15
Anticipated expiration: 2030-05-26

Abstract

The utility model relates to a novel motor clutch for fingerprint lock, including the pedestal and connect in the lid of pedestal one end, form the installation cavity between pedestal and the lid, set up driving motor in the installation cavity and push away the frame, pedestal one side is equipped with the breach that supplies to push away the frame and pass through, its characterized in that: be connected with the eccentric wheel on driving motor's the motor shaft, the other end that the motor shaft is connected relatively to the eccentric wheel is equipped with the eccentric part, thereby the eccentric part of eccentric wheel drives through linkage structure and pushes away the frame up-and-down motion and realize leaving, closing of fingerprint lock, the beneficial effects of the utility model are that: the clutch response speed is high, the generated noise is low, the user experience is greatly improved, and the service life of the device is long.

Description

Novel motor clutch mechanism for fingerprint lock

Technical Field

The utility model relates to a motor clutch of fingerprint lock, concretely relates to novel motor clutch for fingerprint lock.

Background

The fingerprint lock is an intelligent lock taking human fingerprints as an identification carrier and means, and is a perfect crystal of a computer information technology, an electronic technology, a mechanical technology and a modern hardware technology. Fingerprint locks generally consist of two parts, an electronic identification and control part and a mechanical linkage system. The uniqueness and the irreproducibility of the fingerprint determine that the fingerprint lock is the safest lock type of all the current locks. Besides fingerprint identification, the fingerprint lock should be equipped with an emergency mechanical key according to national regulations. The core component of fingerprint lock includes: mainboard, clutch (i.e. clutch mechanism), fingerprint collection ware, cryptography, microprocessor (CPU), intelligent emergency key, power supply unit (battery charger transformer etc.). According to the uniqueness of each fingerprint, the fingerprint is determined to be used as a key. The fingerprint of the individual is stored in advance by means of prestoring in the system. When the user has access requirement, the fingerprint sensor collects the characteristic information of the user fingerprint, and the fingerprint characteristic value is sent to the fingerprint identification chip for analysis and comparison to determine whether the user has access authority. If the user has the access right, after the verification is passed, the fingerprint identification chip outputs a control signal to drive the gated direct current motor to realize the control of the gate; if the user does not have corresponding authority, the information of authentication failure can be given after the authentication. At present, fingerprint locks are applied to the fields of mobile phones, door locks, attendance machines, luggage cases and the like.

At present, the clutch mechanism in the fingerprint lock adopts the patent numbers as follows: the structure that publishes in CN 201546493U, including the motor promptly, drive gear group and shell, the spout, the motor push rod, the push rod spring, the shell sets up on the spout, including a motor, an end cap, a controller, and a cover plate, drive gear group, motor push rod and push rod spring set up in the shell, motor and drive gear group, motor push rod links to each other in proper order, motor push rod links to each other with the push rod spring, the top of push rod spring links to each other with the push pedal, thereby promote the operation of leaving and closing of push pedal motion realization lock through the motor during the use, specifically, the motor rotates and drives drive gear group and rotate, it rotates and then drives the push rod spring up-and-down motion to drive the push pedal through the positive and negative.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to solve the above-mentioned deficiencies of the prior art,

a novel motor clutch mechanism for a fingerprint lock is provided.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a novel motor clutch for fingerprint lock, is including the pedestal and connect in the lid of pedestal one end, form the installation cavity between pedestal and the lid, set up driving motor in the installation cavity and push away the frame, pedestal one side is equipped with the breach that supplies to push away the frame and pass through, its characterized in that: the motor shaft of the driving motor is connected with an eccentric wheel, the other end of the eccentric wheel, which is relatively connected with the motor shaft, is provided with an eccentric part, and the eccentric part of the eccentric wheel drives the pushing frame to move up and down through a linkage structure, so that the separation and the combination of the fingerprint lock are realized.

Adopt above-mentioned technical scheme, fingerprint lock motor clutch on the market all adopts motor drive transmission gear group, transmission gear group linkage push rod rethread push rod linkage push rod spring realizes the operation of leaving and closing, because transmission gear group is gear wheel and little gear engagement, through the motor drive pinion, drive gear wheel revolve by the pinion again, promptly the motor need drive the pinion and rotate more number of turns and just can drive a week or two weeks of the rotatory turn of gear wheel and then realize once the operation of leaving or once closing by the pinion, gear rotation ratio generally is 5: 1, this in-process motor rotates the energy that many circles caused the consumption more, and need wait for the pinion to bend rotatory a week or two weeks of gear wheel, the time that consumes is longer, the performance is once to leave, it is longer to close operation response time, approximately between 100ms-300ms, the drive time is long, and the noise that the motor does not stop rotatory in-process production just also is big, user experience feels relatively poor, and the utility model discloses a driving motor drives the eccentric wheel and rotates, drives linkage structure through the eccentric wheel and drive the frame by linkage structure again and realize the operation of leaving, closing, the motor only needs to drive the eccentric part on the eccentric wheel and rotates 180 and can make to push away the frame and accomplish once closing or the operation of leaving, single response time is about 30ms greatly, has promoted response time greatly, and has practiced thrift power consumption.

The novel motor clutch mechanism for the fingerprint lock can be further set as follows: the linkage structure comprises a linkage block, wherein two ends of the linkage block are abutted against two ends of the pushing frame through a retaining piece, a linkage part is arranged on one side of the linkage block, a linkage groove is formed in the linkage part, the inner diameter of the linkage part is larger than that of the eccentric part, the eccentric part of the eccentric wheel can drive the eccentric part to rotate, and the eccentric part of the eccentric wheel penetrates through the linkage groove.

Adopt above-mentioned technical scheme, because the separation and reunion operation is accomplished by the push pedal of push rod spring drive among the traditional clutching mechanism, the push rod spring is because compressed for a long time, kick-backs, will cause whole clutching mechanism to become invalid after the push rod spring damages, therefore, traditional clutching mechanism is very high to the requirement of spring, must be the essence, otherwise the motor rotates the in-process, because of changeing epaxial salient point and the continuous friction of spring, arouse the spring rupture easily, lead to the motor to rotate the back, the stroke can not be pushed away, can't carry out the separation and reunion action, the performance is for not opening the door, and the utility model discloses a holder keeps linkage piece both ends and pushes away the state that the frame offsets, and the effect of holder keeps the push pedal to resume original state after receiving the extrusion, does not have all the other external forces and holder.

The novel motor clutch mechanism for the fingerprint lock can be further set as follows: the holding piece comprises two oppositely arranged holding push rods, the two holding push rods are connected through a return spring and are abutted against the two ends of the pushing frame under the action of the return spring, and the holding push rods are limited in the linkage block through a limiting structure.

By adopting the technical scheme, the two oppositely-arranged retaining push rods are arranged, one ends of the two retaining push rods are abutted against the pushing frame, the other ends of the two retaining push rods are connected through the reset spring, the retaining push rods can be restored to the original state after being extruded, other external force and the reset spring are not rubbed, the reset spring can not be broken, the retaining push rods are limited in the linkage block through the limiting structure, the compactness of the device is improved, and the retaining push rods and the linkage block are prevented from being disassembled.

The novel motor clutch mechanism for the fingerprint lock can be further set as follows: the limiting structure comprises a sliding groove with one open end, which is formed in the middle of a linkage block, connecting holes for the push rod to pass through are formed in the two ends of the sliding groove of the linkage block, a spring connecting seat with the same shape as the cross section of the sliding groove is arranged at one end of the push rod and penetrates through the connecting holes, bosses are arranged on the spring connecting seat, and the two ends of the reset spring are connected to the spring connecting seat through the bosses respectively.

By adopting the technical scheme, the middle part of the linkage block is provided with the chute with one open end, one end of the push rod is kept to penetrate through the connecting hole to be arranged in the chute, and is limited in the chute through the spring connecting seat, so that the push rod can only move along the chute, and the reset spring not only can play a reset role, but also can be connected to the spring connecting seat through the boss to ensure the coaxiality of the two push rods.

The novel motor clutch mechanism for the fingerprint lock can be further set as follows: the installation cavity is provided with a gear block below the eccentric part, and two groups of concave surfaces with the same shape as the eccentric part are arranged on the gear block at intervals.

Adopt above-mentioned technical scheme, because the eccentric part needs to drive the linkage piece activity through the link slot when the eccentric wheel rotates, consequently, the link slot internal diameter is greater than the external diameter of eccentric part, it can take place the friction with the link slot is inside at the necessary meeting of eccentric part drive link slot when linkage piece carries out the linkage to the linkage piece, it is more thin more probably to lead to the eccentric part to be worn down after long-term the use, thereby lead to the stroke not to reach the distance of separation and reunion, consequently set up the concave surface that the gear piece set up on the gear piece and be unanimous with eccentric part shape, rotate to get into behind the concave surface when the eccentric part, thereby guarantee that the stroke is in the state that can carry out the separation and reunion all the time, the condition that the stroke that the eccentric part wearing and tearing caused is not up to.

The novel motor clutch mechanism for the fingerprint lock can be further set as follows: the installation cavity is provided with a driving motor installation groove at a position corresponding to the driving motor, and the driving motor is installed in the driving motor installation groove.

By adopting the technical scheme, the driving motor mounting groove is formed in the mounting cavity to fix the driving motor in the driving motor mounting groove, so that the compactness of the device is effectively improved, and the failure of the device caused by the displacement of the motor in the use process is prevented.

The novel motor clutch mechanism for the fingerprint lock can be further set as follows: the eccentric part is a circular bump.

By adopting the technical scheme, the eccentric part is set to be the circular convex block, so that the processing is convenient.

The utility model has the advantages that: the clutch response speed is high, the generated noise is low, the user experience is greatly improved, and the service life of the device is long.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is an explosion structure diagram of the embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a linkage block according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic structural view of a holder according to an embodiment of the present invention.

Detailed Description

Referring to fig. 1-4: a new kind of motor clutch mechanisms used for fingerprint lock, including the base 1 and connects to the cover 2 of one end of the base 1, can pass the buckle structural connection between base 1 and cover 2 and can also pass the conventional threaded connection trough 11 set up in the base 1, set up the attachment hole 21 on the cover 2, connect both of them through the bolt, form the installation cavity between base 1 and cover 2, set up driving motor 3 and push away the shelf 4 in the installation cavity, there is gap 12 for pushing away shelf 4 to pass on one side of the base 1, connect with the eccentric wheel 32 on the motor shaft 31 of the driving motor 3, the eccentric wheel 32 connects the other end of the motor shaft 31 relatively and has eccentric portions 321, the eccentric portion 321 of the eccentric wheel 32 drives the push away shelf 4 to move up and down along the gap 12 through the linkage structure thus realize the separation, closing of the fingerprint lock, the linkage structure includes the linkage block 5, the two ends of the linkage block 5 are supported against with the two ends of, one side of the linkage block 5 is provided with a linkage part 51, the linkage part 51 is provided with a linkage groove 52 which has an inner diameter larger than that of the eccentric part 321 and can allow the eccentric wheel 32 to drive the eccentric part 321 to rotate, the eccentric part 321 of the eccentric wheel 32 is arranged in the linkage groove 52 in a penetrating way, the retaining piece comprises two oppositely arranged retaining push rods 6, the two retaining push rods 6 are connected through a return spring 7 and are abutted against the two ends of the push frame 4 under the action of the return spring 7, the retaining push rods 6 are limited in the linkage block 5 through a limiting structure, the limiting structure comprises a sliding groove 53 with one open end formed in the middle of the linkage block 5, the linkage block 5 is provided with connecting holes 531 at the two ends of the sliding groove 53 for the retaining push rods 6 to pass through, one end of the retaining push rod 6 is provided with a spring connecting seat 61 which has the same shape with the cross section of the sliding groove 53 through the connecting hole 531, the installation cavity is provided with gear piece 8 below eccentric portion 321, the interval is equipped with two sets of concave surfaces 81 unanimous with eccentric portion 321 shape on gear piece 8, the installation cavity is equipped with driving motor mounting groove 13 in the corresponding position of driving motor 3, driving motor 3 installs in driving motor mounting groove 13, eccentric portion 321 is circular lug, because fingerprint lock generally adopts the battery as the power, clutch mechanism just can't pass through motor drive when the battery does not have the electricity, for this reason the opposite side of seting up breach 12 relatively at the pedestal is equipped with the spread groove that supplies mechanical lock core male.

Claims

1. The utility model provides a novel motor clutch for fingerprint lock, is including the pedestal and connect in the lid of pedestal one end, form the installation cavity between pedestal and the lid, set up driving motor in the installation cavity and push away the frame, pedestal one side is equipped with the breach that supplies to push away the frame and pass through, its characterized in that: the motor shaft of the driving motor is connected with an eccentric wheel, the other end of the eccentric wheel, which is relatively connected with the motor shaft, is provided with an eccentric part, and the eccentric part of the eccentric wheel drives the pushing frame to move up and down through a linkage structure, so that the separation and the combination of the fingerprint lock are realized.

2. The novel motor clutch mechanism for the fingerprint lock as claimed in claim 1, characterized in that: the linkage structure comprises a linkage block, wherein two ends of the linkage block are abutted against two ends of the pushing frame through a retaining piece, a linkage part is arranged on one side of the linkage block, a linkage groove is formed in the linkage part, the inner diameter of the linkage part is larger than that of the eccentric part, the eccentric part of the eccentric wheel can drive the eccentric part to rotate, and the eccentric part of the eccentric wheel penetrates through the linkage groove.

3. The novel motor clutch mechanism for the fingerprint lock as claimed in claim 2, characterized in that: the holding piece comprises two oppositely arranged holding push rods, the two holding push rods are connected through a return spring and are abutted against the two ends of the pushing frame under the action of the return spring, and the holding push rods are limited in the linkage block through a limiting structure.

4. The novel motor clutch mechanism for the fingerprint lock as claimed in claim 3, characterized in that: the limiting structure comprises a sliding groove with one open end, which is formed in the middle of a linkage block, connecting holes for the push rod to pass through are formed in the two ends of the sliding groove of the linkage block, a spring connecting seat with the same shape as the cross section of the sliding groove is arranged at one end of the push rod and penetrates through the connecting holes, bosses are arranged on the spring connecting seat, and the two ends of the reset spring are connected to the spring connecting seat through the bosses respectively.

5. The novel motor clutch mechanism for the fingerprint lock according to any one of claims 2 to 4, characterized in that: the installation cavity is provided with a gear block below the eccentric part, and two groups of concave surfaces with the same shape as the eccentric part are arranged on the gear block at intervals.

6. The novel motor clutch mechanism for the fingerprint lock as claimed in claim 5, characterized in that: the installation cavity is provided with a driving motor installation groove at a position corresponding to the driving motor, and the driving motor is installed in the driving motor installation groove.

7. The novel motor clutch mechanism for the fingerprint lock as claimed in claim 5, characterized in that: the eccentric part is a circular bump.