A magnetic clutch and an intelligent door lock and door comprising the same

Abstract

The present invention discloses a magnetic clutch and a smart door lock and door containing the same. The magnetic clutch comprises: a shell, which is columnar, and an emergency hole extending to the side wall of a magnet fixing seat is provided on the shell; a clutch mechanism comprises a driving motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin, and a clutch connecting plate. The driving motor, the magnet fixing seat, and the first magnet are connected in sequence, and the second magnet and the clutch pin are connected in sequence. The first magnet and the second magnet both have N magnetic poles and S magnetic poles in the radial direction of the shell; an opening needle is used to insert the emergency hole, push the magnet fixing seat to rotate so that the relative magnetic poles of the first magnet and the second magnet are the same or opposite, and push the clutch pin to engage or separate with the clutch connecting plate. When the electronic opening method of the smart lock fails, the present invention uses an opening needle to insert the emergency hole to operate the opening and locking of the smart door lock. The structure is simple and easy to operate, and the structure of the smart lock is also simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic locks, and in particular to a magnetic clutch and an intelligent door lock and door comprising the same. Background Art

[0002] Electronic locks are a comprehensive product that combines electronic technology, integrated circuit design, a large number of electronic components, and a variety of innovative identification technologies. Types of electronic locks include fingerprint locks, electronic password locks, induction locks, and smart locks. Currently, smart locks are becoming more and more abundant, and there are many ways to open them. However, in order to prevent the electronic opening method of smart door locks from failing and being unable to open the door, smart door locks usually retain the rarely used mechanical key opening method as an emergency opening method. The structure of the mechanical key opening method is relatively complex compared to other methods, but it is the last guarantee for opening when the electronic opening method of the smart lock fails. As a result, some smart locks that pursue a minimalist style cannot abandon the mechanical key opening method that affects the minimalist style. Therefore, research on solving the problem of smart door locks without mechanical key opening methods needs further development. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a magnetic clutch, comprising:

[0004] The housing is columnar and is provided with an emergency hole extending to the side wall of the magnet fixing seat;

[0005] A clutch mechanism, comprising a drive motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin, and a clutch connecting plate arranged in sequence along the axial direction in the housing, wherein the drive motor, the magnet fixing seat, and the first magnet are connected in sequence, and the second magnet and the clutch pin are connected in sequence, and the first magnet and the second magnet both have N magnetic poles and S magnetic poles in the radial direction of the housing, and the drive motor drives the first magnet and the second magnet to have the same magnetic poles relative to each other, thereby driving the clutch pin to engage with the clutch connecting plate, and the drive motor drives the first magnet and the second magnet to have opposite magnetic poles relative to each other, thereby driving the clutch pin to separate from the clutch connecting plate;

[0006] An opening pin is used to be inserted into the emergency hole to push the magnet fixing seat to rotate until the N magnetic pole of the first magnet is opposite to the N magnetic pole of the second magnet, so that the second magnet pushes the clutch pin to move to engage with the clutch connecting piece.

[0007] When the opening needle is pulled out from the emergency hole, it drives the magnet fixing seat to rotate until the N pole of the first magnet is opposite to the S pole of the second magnet, so that the second magnet pulls the clutch pin to move and separate from the clutch connecting plate.

[0008] Optionally, a limiting structure is provided on the shell and the magnet fixing seat so that the magnet fixing seat does not rotate more than 180 degrees.

[0009] Optionally, the opening needle is made of elastic material.

[0010] Optionally, a track groove is provided in the housing, the clutch pin is installed in the track groove, and the track groove limits the rotation of the clutch pin.

[0011] Optionally, the clutch connecting plate has an elliptical hole, and the clutch pin has an elliptical protrusion, and the elliptical protrusion is used to engage with and disengage from the elliptical hole.

[0012] The present invention also provides an intelligent door lock, comprising the magnetic clutch described above, wherein the clutch connecting plate is connected to the lock body, and the driving motor is connected to the handle.

[0013] The present invention also provides a door, comprising the above-mentioned smart door lock.

[0014] When the electronic opening method of the smart lock fails, the invention can use an opening pin to insert into the emergency hole to operate the opening and closing of the smart door lock. Compared with the previous smart door lock that retains the mechanical key opening method, the structure is simple, the operation is convenient, and the structure of the smart lock is also simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above-mentioned features and technical advantages of the present invention will become clearer and easier to understand by describing its embodiments in conjunction with the following drawings.

[0016] Figure 1 is an exploded view showing a magnetic clutch according to an embodiment of the present invention;

[0017] Figure 2 2 is a schematic diagram of a lower shell according to an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of a ring magnet according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The embodiments of the present invention will be described below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the described embodiments may be modified in various ways or combinations thereof without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of the claims. In addition, in this specification, the drawings are not drawn to scale and the same reference numerals represent the same parts.

[0020] The magnetic clutch of this embodiment includes an upper shell 1, a lower shell 2, a clutch mechanism, and an opening needle 8. The upper shell 1 and the lower shell 2 are buckled together to form a shell. The shell is a columnar body, and a motor slot, a fixed seat slot and a track slot are sequentially arranged in the shell along the axial direction. Taking the lower shell 2 as an example, a lower shell motor slot 21, a lower shell fixed seat slot 22 and a lower shell track slot 23 are arranged in the lower shell 2. The upper shell 1 and the lower shell 2 are connected and fixed, the drive motor 3 is installed in the motor slot, and the magnet fixing seat is installed in the fixing seat slot.

[0021] The clutch mechanism includes a drive motor 3, a magnet fixing seat 4, a first magnet 5 with N pole and S pole, a second magnet 10 with N pole and S pole, a clutch pin 6, and a clutch connecting plate 7, which are sequentially arranged along the axis of the shell, wherein the drive motor 3, the magnet fixing seat 4, and the first magnet 5 are sequentially connected, and the second magnet 10 and the clutch pin 6 are sequentially connected. Specifically, a central axis is provided at one end of the drive motor 3, and the central axis on the drive motor 3 is coaxially connected to the magnet fixing seat 4. A magnet fixing groove is provided on the magnet fixing seat 4, and the first magnet 5 is embedded in the magnet fixing groove.

[0022] Similarly, a magnet fixing groove is also provided on the clutch pin 6, and the second magnet 10 is embedded in the magnet fixing groove. The clutch pin 6 is installed in the track groove of the housing, and the track groove restricts the clutch pin 6 from rotating in a circle and can only move in an axial direction.

[0023] The driving motor can drive the magnet fixing seat 4 to rotate, and by rotating a certain angle, the relative magnetic poles of the first magnet 5 and the second magnet 10 are the same or opposite. 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. By making the relative magnetic poles of the first magnet 5 and the second magnet 10 the same, the second magnet 10 is pushed to move axially, thereby driving the clutch pin 6 to engage with the clutch connecting plate. By making the relative magnetic poles of the first magnet 5 and the second magnet 10 opposite, the second magnet 10 is attracted to move axially, thereby driving the clutch pin 6 to separate from the clutch connecting plate.

[0024] An emergency hole 9 extending to the side wall of the magnet fixing seat is provided on the housing and can extend into the side wall. When the driving motor fails and cannot drive the magnetic clutch to operate, the opening needle 8 is used to insert into the emergency hole 9, push the magnet fixing seat 4 to rotate until the N magnetic pole of the first magnet is opposite to the N magnetic pole of the second magnet, and push the second magnet 10 to move axially, thereby driving the clutch pin 6 to engage with the clutch connecting plate.

[0025] When the opening needle 8 is pulled out from the emergency hole, the magnet fixing seat 4 is driven to reverse, so that the N pole of the first magnet is opposite to the S pole of the second magnet, thereby attracting the second magnet 10 to move axially, thereby driving the clutch pin 6 to separate from the clutch connecting plate.

[0026] The opening pin is made of elastic material and can be metal.

[0027] A limiting boss (not shown) is provided on the housing, and a limiting boss is also provided on the magnet fixing seat 4. The limiting boss is used to limit the rotation angle of the magnet fixing seat 4, so that it can only rotate no more than 180° when pushed or pulled by the opening needle 8. Specifically, when the opening needle pushes the magnet fixing seat 4 to rotate until its limiting boss contacts one side of the limiting boss of the housing, the N magnetic pole of the first magnet is opposite to the N magnetic pole of the second magnet 10. Under the effect of the principle that the same poles of magnets repel each other, the second magnet 10 is driven by the magnetic force to drive the clutch pin to move axially toward the clutch connecting piece 7, thereby engaging with the clutch connecting piece 7.

[0028] When the opening needle pulls the magnet fixing seat 4 to rotate in the opposite direction until its limiting boss contacts the other side of the limiting boss of the shell, the N pole of the first magnet is opposite to the S pole of the second magnet 10. Under the action of the principle of magnet polarity, the second magnet 10 is attracted by the magnetic force to drive the clutch pin to move axially away from the clutch connecting plate 7, thereby separating from the clutch connecting plate 7.

[0029] Furthermore, friction patterns are arranged in the emergency hole.

[0030] Furthermore, the emergency hole is an eccentric hole.

[0031] Furthermore, the clutch connecting plate 7 has an elliptical hole 71 in the axial direction, and the clutch pin 6 has an elliptical protrusion 61 in the axial direction, and the elliptical protrusion 61 is used to engage with and disengage from the elliptical hole 71 .

[0032] Furthermore, the first magnet and the second magnet have installation marks, such as cutouts, so that when the first magnet and the second magnet are installed, the magnetic poles of the first magnet and the second magnet can be opposite to each other.

[0033] The present invention also provides an intelligent door lock, comprising the magnetic clutch described above, wherein the clutch connecting plate is connected to the lock body, and the driving motor is connected to the handle.

[0034] When opening the door, when the door lock is locked, after the user successfully verifies using fingerprint, password or other means, the driving motor 3 drives the magnet fixing seat 4 to rotate 180 degrees clockwise to the side of the limiting boss of the shell, so that the N pole of the first magnet is opposite to the N pole of the second magnet 10. Under the action of the principle that like poles of magnets repel each other, the second magnet 10 drives the clutch pin 6 to move in the direction of the clutch connecting plate 7 under the action of magnetic force. The elliptical protrusion 61 on the clutch pin 6 is inserted into the elliptical hole 71 of the clutch connecting plate 7, connecting the handle and the lock body. The handle is operated to open the lock body, thereby realizing the door opening function.

[0035] After the door is opened, the handle rebounds, and the driving motor 3 drives the magnet fixing seat 4 to rotate 180 degrees counterclockwise to the other side of the limiting boss of the shell, so that the N pole of the first magnet is opposite to the S pole of the second magnet 10. Under the action of the principle of attraction between opposite poles of magnets, the second magnet 10 drives the clutch pin 6 to move away from the clutch connecting plate 7 under the action of magnetic force. The elliptical protrusion 61 on the clutch pin 6 leaves the elliptical hole 71 of the clutch connecting plate 7, disconnecting the connection between the handle and the lock body, thereby realizing idling of the handle.

[0036] When the electronic opening method of the smart lock fails, the opening needle 8 can be used to insert the emergency hole 9, push the magnet fixing seat 4 to rotate until the N pole of the first magnet is opposite to the N pole of the second magnet, and push the second magnet 10 to move axially, thereby driving the clutch pin 6 to engage with the clutch connecting plate, and the elliptical protrusion 61 on the clutch pin 6 is inserted into the elliptical hole 71 of the clutch connecting plate 7, connecting the handle and the lock body, and realizing the door opening function.

[0037] When the opening needle 8 is pulled out from the emergency hole, the magnet fixing seat 4 is driven to reverse, so that the N pole of the first magnet is opposite to the S pole of the second magnet, thereby attracting the second magnet 10 to move axially, thereby driving the clutch pin 6 to separate from the clutch connecting plate, disconnecting the connection between the handle and the lock body, and realizing the idling of the handle.

[0038] The present invention also provides a door, comprising the above-mentioned smart door lock.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic clutch, characterized in that: include: The housing is columnar and is provided with an emergency hole extending to the side wall of the magnet fixing seat; A clutch mechanism, comprising a drive motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin, and a clutch connecting plate arranged in sequence along the axial direction in the housing, wherein the drive motor, the magnet fixing seat, and the first magnet are connected in sequence, and the second magnet and the clutch pin are connected in sequence, and the first magnet and the second magnet both have N magnetic poles and S magnetic poles in the radial direction of the housing, and the drive motor drives the first magnet and the second magnet to have the same magnetic poles relative to each other, thereby driving the clutch pin to engage with the clutch connecting plate, and the drive motor drives the first magnet and the second magnet to have opposite magnetic poles relative to each other, thereby driving the clutch pin to separate from the clutch connecting plate; An opening pin is used to be inserted into the emergency hole to push the magnet fixing seat to rotate until the N magnetic pole of the first magnet is opposite to the N magnetic pole of the second magnet, so that the second magnet pushes the clutch pin to move to engage with the clutch connecting piece. When the opening pin is pulled out from the emergency hole, it drives the magnet fixing seat to rotate until the N pole of the first magnet is opposite to the S pole of the second magnet, so that the second magnet pulls the clutch pin to move and separate from the clutch connecting piece. A friction pattern is arranged in the emergency hole. The emergency hole is an eccentric hole.

2. The magnetic clutch according to claim 1, characterized in that: A limiting structure is provided on the shell and the magnet fixing seat so that the magnet fixing seat does not rotate more than 180 degrees.

3. The magnetic clutch according to claim 1, characterized in that: The opening needle is made of elastic material.

4. The magnetic clutch according to claim 1, characterized in that: A track groove is arranged in the shell, the clutch pin is installed in the track groove, and the track groove limits the rotation of the clutch pin.

5. The magnetic clutch according to claim 1, characterized in that: The clutch connecting plate has an elliptical hole, and the clutch pin has an elliptical protrusion, and the elliptical protrusion is used for engaging with and separating from the elliptical hole.

6. The magnetic clutch according to claim 1, characterized in that: The first magnet and the second magnet are ring-shaped.

7. A smart door lock, characterized in that: It comprises the magnetic clutch as described in any one of claims 1 to 6, wherein the clutch connecting plate is connected to the lock body, and the driving motor is connected to the handle.

8. A door, characterized in that: Including the smart door lock as described in claim 7.

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