CN112554656A - Magnetic clutch and contain its intelligent lock and door - Google Patents

Magnetic clutch and contain its intelligent lock and door Download PDF

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Publication number
CN112554656A
CN112554656A CN202011373008.4A CN202011373008A CN112554656A CN 112554656 A CN112554656 A CN 112554656A CN 202011373008 A CN202011373008 A CN 202011373008A CN 112554656 A CN112554656 A CN 112554656A
Authority
CN
China
Prior art keywords
clutch
magnet
pin
magnetic
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011373008.4A
Other languages
Chinese (zh)
Inventor
赵建平
肖骞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Mingmen Locks Industry Co Ltd
Original Assignee
Guangdong Mingmen Locks Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Mingmen Locks Industry Co Ltd filed Critical Guangdong Mingmen Locks Industry Co Ltd
Priority to CN202011373008.4A priority Critical patent/CN112554656A/en
Publication of CN112554656A publication Critical patent/CN112554656A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0013—Followers; Bearings therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/0026—Clutches, couplings or braking arrangements
    • E05B2047/0028—Clutches, couplings or braking arrangements using electromagnetic means

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  • Lock And Its Accessories (AREA)

Abstract

The invention discloses a magnetic clutch and an intelligent door lock and a door comprising the same, wherein the magnetic clutch comprises: the shell is columnar, and a stop groove is formed in the shell; the clutch mechanism comprises a driving motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin and a clutch connecting piece which are sequentially arranged in the shell along the axial direction, the driving motor, the magnet fixing seat and the first magnet are sequentially connected, the second magnet and the clutch pin are sequentially connected, the first magnet and the second magnet are both provided with a radial N magnetic pole and a radial S magnetic pole in the shell, the magnetic poles of the first magnet and the second magnet which are opposite are driven by the driving motor to be the same or opposite, and the clutch pin and the clutch connecting piece are driven to be jointed or separated; and the clutch stop pin is embedded in the side wall of the clutch pin, and when the external magnetic force applied to the clutch stop pin is greater than the attraction force of the magnet to the clutch stop pin, a part of the clutch stop pin slides into the stop groove, so that the clutch pin cannot move.

Description

Magnetic clutch and contain its intelligent lock and door
Technical Field
The invention relates to the technical field of electronic locks, in particular to a magnetic clutch, an intelligent door lock comprising the same and an intelligent door.
Background
The intelligent door lock is a comprehensive product combining an electronic technology, an integrated circuit design, a large number of electronic components and various innovative identification technologies. The types of intelligent door locks include fingerprint locks, electronic coded locks, induction locks, intelligent locks, and the like. The intelligent door lock mainly comprises an elastic clutch device and a magnetic clutch device, wherein the elastic clutch device uses elastic materials as coupling transmission components, and is characterized in that the transmission mode is direct contact transmission, the parts are abraded due to movement, the service life of the clutch device is influenced to a certain extent, and the requirement on the assembly size precision of the parts is higher; the magnetic clutch device uses the magnet as a coupling transmission component and is characterized in that the rotation mode is non-contact transmission driven by the attraction force and the repulsion force of the magnet, and parts have no relative contact friction, so the service life of the clutch device is long, and the assembly size precision requirement of the parts is low. However, the magnetic clutch device is easily affected by external magnetic force, and misoperation is generated to unlock the lockset, so that the safety of the lockset is greatly reduced. At present, no better solution is available.
Disclosure of Invention
To solve the above problems, the present invention provides a magnetic clutch including:
the clutch pin comprises a shell, a clutch connecting piece and a locking pin, wherein the shell is columnar, a stop groove is formed in the shell, and the stop groove is formed in the position where the clutch pin is separated from the clutch connecting piece;
the clutch mechanism comprises a driving motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin and a clutch connecting piece, which are sequentially arranged in the shell along the axial direction, wherein the driving motor, the magnet fixing seat and the first magnet are sequentially connected, the second magnet and the clutch pin are sequentially connected, the first magnet and the second magnet are both provided with an N magnetic pole and an S magnetic pole in the radial direction of the shell, the magnetic poles opposite to the first magnet and the second magnet are driven to be the same through the driving motor, so that the clutch pin is driven to be jointed with the clutch connecting piece, and the magnetic poles opposite to the first magnet and the second magnet are driven to be opposite through the driving motor, so that the clutch pin is driven to be separated from the clutch connecting piece;
a clutch stop pin embedded on a sidewall of the clutch pin,
under the condition that the clutch pin is separated from the clutch connecting piece, when the external magnetic force applied to the clutch stop pin is larger than the attraction force of the magnet of the clutch mechanism to the clutch stop pin, a part of the clutch stop pin slides into the stop groove, so that the clutch pin cannot move.
Optionally, a limiting structure is arranged on the housing and the magnet fixing seat, so that the magnet fixing seat rotates by no more than 180 degrees.
Optionally, the clutch stop pin is made of a magnetically permeable material.
Optionally, a track groove is provided in the housing, the clutch pin being mounted in the track groove, the track groove limiting rotation of the clutch pin.
Optionally, the clutch connecting plate has an oval hole in the axial direction, and the clutch pin has an oval projection in the axial direction for engaging and disengaging with the oval hole.
Optionally, the first magnet and the second magnet are ring-shaped.
The invention also provides an intelligent door lock which comprises the magnetic clutch, wherein the clutch connecting sheet is connected with the lock body, and the driving motor is connected with the handle.
The invention also provides a door, which comprises the intelligent door lock.
According to the invention, the clutch stop pin is arranged, so that under the condition that the lock body is locked, if the external magnetic force is greater than the suction force of the magnetic force on the magnetic clutch to the clutch pin, part of the clutch stop pin can enter the stop groove, so that the clutch pin can not move, and the condition that the lock body is opened by misoperation due to the interference of the external magnetic force under the condition that the lock body is locked is prevented.
Drawings
The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
FIG. 1 is an exploded view of a magnetic clutch illustrating an embodiment of the present invention;
fig. 2 is a schematic view showing a lower case of the embodiment of the present invention.
Fig. 3 is a schematic view showing a ring magnet according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.
The magnetic clutch of the embodiment comprises an upper shell 1, a lower shell 2, a clutch mechanism and a clutch stop pin 8. The upper shell 1 and the lower shell 2 are buckled to form a shell. The casing is a cylindrical body, and a motor groove, a fixed seat groove and a track groove are sequentially arranged in the casing along the axial direction, and a lower casing motor groove 21, a lower casing fixed seat groove 22 and a lower casing track groove 23 are arranged in the lower casing 2 by taking the lower casing 2 as an example. Go up casing 1 and casing 2 connection fixed down, driving motor 3 installs in the motor groove, and the magnet fixing base is installed in the fixing base groove.
Clutch device includes that the axis along the casing sets gradually driving motor 3, magnet fixing base 4, N magnetic pole and S magnetic pole be with the first magnet 5 of the body, N magnetic pole and S magnetic pole be with the second magnet 10 of the body, separation and reunion round pin 6, separation and reunion connection piece 7 of the body, and wherein, driving motor 3, magnet fixing base 4, first magnet 5 connect gradually, and second magnet 10, separation and reunion round pin 6 connect gradually. Specifically, a central shaft is arranged at one end of the driving motor 3, and the central shaft on the driving motor 3 is coaxially connected with the magnet fixing seat 4. A magnet fixing groove is formed in the magnet fixing seat 4, and the first magnet 5 is embedded in the magnet fixing groove. Preferably, the first magnet 5 and the second magnet 10 are annular.
Similarly, a magnet fixing groove is also provided in the clutch pin 6, and the second magnet 10 is fitted in the magnet fixing groove. The clutch pin 6 is mounted in a track groove of the housing, which limits the clutch pin 6 not to perform a circular rotation motion but to move only in an axial direction.
The driving motor can drive the magnet fixing seat 4 to rotate, and the relative magnetic poles of the first magnet 5 and the second magnet 10 are the same or opposite by rotating a certain angle, specifically, the N magnetic pole of the first magnet 5 is opposite to the N magnetic pole of the second magnet 10, or the N magnetic pole of the first magnet 5 is opposite to the S magnetic pole of the second magnet 10, and the relative magnetic poles of the first magnet 5 and the second magnet 10 are the same, so that the second magnet 10 is pushed to move along the axial direction, and the clutch pin 6 is driven to be engaged with the clutch connecting piece. The opposite magnetic poles of the first magnet 5 and the second magnet 10 are opposite to each other, so that the second magnet 10 is attracted to move along the axial direction, and the clutch pin 6 is driven to be separated from the clutch connecting piece.
The shell is provided with a limiting boss (not shown), the magnet fixing seat 4 is also provided with a limiting boss, and the rotating angle of the magnet fixing seat 4 is limited by the limiting boss, so that the magnet fixing seat can only rotate by no more than 180 degrees.
A stop groove 14 is arranged in the housing, and a clutch stop pin 8 is embedded in the side wall of the clutch pin 6 and does not exceed the outer wall surface of the clutch pin. When the external magnetic force applied to the clutch stop pin is larger than the attraction force of the first magnet to the clutch stop pin, a part of the clutch stop pin slides into the stop groove 14, so that the magnetic force of the external magnetic force to the first magnet and the second magnet of the magnetic clutch is prevented from interfering, and misoperation is prevented.
The radial symmetry of the clutch pin 6 has two limit bosses 63, correspondingly, in the housing there are axial track grooves in which the limit bosses 63 are embedded, so that the clutch pin 6 can only move axially. Mounting holes 62 may be provided on the limit bosses 63 of the clutch pin 6, preferably, the mounting holes 62 are provided on both the limit bosses 63, the clutch stopper pin 8 is placed in the mounting holes 62, the stopper groove 14 is provided in the track groove, and the stopper groove 14 is provided at a position where the clutch pin 6 is separated from the clutch coupling piece 7. When no external magnetic force is influenced, the clutch stop pin 8 is attracted by the first magnet, and the clutch stop pin 8 cannot exceed the radial end face of the limiting boss 63 of the clutch pin 6. When the clutch stop pin 8 is subjected to an external magnetic force greater than the attraction force of the first magnet of the clutch mechanism to the clutch stop pin 8, a part of the clutch stop pin 8 slides into the stop groove 14. It should be noted that the attraction force applied to the clutch stop pin 8 is not limited to the first magnet, and there may be an attraction force also applied to the clutch stop pin 8 by the second magnet, so that when the external magnetic force applied to the clutch stop pin 8 is greater than the attraction force applied to the clutch stop pin 8 by the magnet of the clutch mechanism, a part of the clutch stop pin 8 slides into the stop groove 14.
Further, the clutch connecting plate 7 has an oval hole 71 in the axial direction, and the clutch pin 6 has an oval projection 61 in the axial direction, and the oval projection 61 is adapted to engage with and disengage from the oval hole 71.
Further, the first magnet and the second magnet are provided with mounting marks, such as notches, so that the magnetic poles of the first magnet and the second magnet can be opposite when the first magnet and the second magnet are mounted.
The invention also provides an intelligent door lock which comprises the magnetic clutch, the clutch connecting piece is connected with the lock body, and the driving motor is connected with the handle.
When opening the door, under door shutting lock state, the user uses the fingerprint, password or other modes verify after successful, driving motor 3 drives magnet fixing base 4 clockwise rotation 180 degrees to the spacing boss one side position of casing, make the N magnetic pole of first magnet relative with the N magnetic pole of second magnet 10, under the effect of magnet homopolar repulsion principle, second magnet 10 removes to the direction that drives separation and reunion round pin 6 to separation and reunion connection piece 7 under magnetic force, oval protruding 61 on the separation and reunion round pin 6 inserts in the oval hole 71 of separation and reunion connection piece 7, connect handle and lock body, the operation handle makes the lock body open, can realize the function of opening the door.
Handle kick-backs after opening the door, make the lock body close, driving motor 3 drives 4 anticlockwise rotations 180 degrees spacing boss opposite side positions to the casing of magnet fixing base simultaneously, make the N magnetic pole of first magnet relative with the S magnetic pole of second magnet 10, under the effect of magnet heteropolar attraction principle, second magnet 10 removes to the direction that drives separation and reunion round pin 6 to keeping away from separation and reunion connection piece 7 under magnetic force, the oval protruding 61 on the separation and reunion round pin 6 leaves the oval hole 71 of separation and reunion connection piece 7, the connection of handle and lock body has been broken off, the handle of operating again can not drive the lock body action.
When the intelligent door lock is acted by external magnetic force in a locking state, the intelligent door lock can be interfered by external magnetic force, the clutch pin 6 can be possibly engaged with the clutch connecting sheet 7, and the handle can be operated to open the lock body, which is caused by the external magnetic force interference. Under the action of external magnetic force, when the attraction of the external magnetic force to the clutch stop pin 8 is larger than the attraction of the magnet to the clutch stop pin 8, a part of the clutch stop pin 8 slides into the stop groove 14, so that the axial movement of the clutch pin 6 can be limited, the connection between the handle and the lock body is prevented, and the lock body can be opened by operating the handle in a locking state.
The invention further provides a door, which comprises the intelligent door lock.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A magnetic clutch, comprising:
the clutch pin comprises a shell, a clutch connecting piece and a locking pin, wherein the shell is columnar, a stop groove is formed in the shell, and the stop groove is formed in the position where the clutch pin is separated from the clutch connecting piece;
the clutch mechanism comprises a driving motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin and a clutch connecting piece, which are sequentially arranged in the shell along the axial direction, wherein the driving motor, the magnet fixing seat and the first magnet are sequentially connected, the second magnet and the clutch pin are sequentially connected, the first magnet and the second magnet are both provided with an N magnetic pole and an S magnetic pole in the radial direction of the shell, the magnetic poles opposite to the first magnet and the second magnet are driven to be the same through the driving motor, so that the clutch pin is driven to be jointed with the clutch connecting piece, and the magnetic poles opposite to the first magnet and the second magnet are driven to be opposite through the driving motor, so that the clutch pin is driven to be separated from the clutch connecting piece;
a clutch stop pin embedded on a sidewall of the clutch pin,
under the condition that the clutch pin is separated from the clutch connecting piece, when the external magnetic force applied to the clutch stop pin is larger than the attraction force of the magnet of the clutch mechanism to the clutch stop pin, a part of the clutch stop pin slides into the stop groove, so that the clutch pin cannot move.
2. The magnetic clutch of claim 1, wherein a limit structure is disposed on the housing and the magnet holder such that the magnet holder does not rotate more than 180 degrees.
3. Magnetic clutch according to claim 1,
the clutch stop pin is made of magnetic conductivity materials.
4. Magnetic clutch according to claim 1,
a track groove is formed in the shell, the clutch pin is installed in the track groove, and the track groove limits rotation of the clutch pin.
5. Magnetic clutch according to claim 1,
the clutch connecting piece is provided with an oval hole along the axial direction, the clutch pin is provided with an oval bulge along the axial direction, and the oval bulge is used for being connected with and separated from the oval hole.
6. Magnetic clutch according to claim 1,
the first magnet and the second magnet are annular.
7. An intelligent door lock, characterized in that, includes the magnetic clutch of claim 1 to 6, the separation and reunion connection piece is connected with the lock body, driving motor is connected with the handle.
8. A door comprising the intelligent door lock of claim 7.
CN202011373008.4A 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door Withdrawn CN112554656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011373008.4A CN112554656A (en) 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011373008.4A CN112554656A (en) 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door

Publications (1)

Publication Number Publication Date
CN112554656A true CN112554656A (en) 2021-03-26

Family

ID=75045332

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011373008.4A Withdrawn CN112554656A (en) 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door

Country Status (1)

Country Link
CN (1) CN112554656A (en)

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Application publication date: 20210326

WW01 Invention patent application withdrawn after publication