CN220469613U - Electronic door lock - Google Patents

Abstract

The application relates to the tool to lock field, provides an electronic door lock, include: a housing for connection to an external support; the transmission assembly is arranged in the shell and comprises a turntable, and an arc-shaped convex area is arranged on the outer edge of the turntable; the limiting component is arranged in the shell; the limiting assembly comprises an elastic piece, a first limiting part and a second limiting part; the first spacing portion sets up on the arc protruding district, and the second spacing portion sets up on the elastic component, and the one end of elastic component is connected on the casing, and first spacing portion matches with the second spacing portion, and the elastic component extrudes and fixes the carousel through first spacing portion. The beneficial lies in that, can play the effect that carries out spacingly to the carousel through the elastic component extrusion carousel in the spacing subassembly, the produced vibration just can not lead to the carousel to rotate when the motor drives the drive gear and takes off so as to avoid influencing the electronic door lock and detect the switch lock state, guarantee going on smoothly of door lock switch lock.

Description

Electronic door lock

Technical Field

The application relates to the technical field of locks, in particular to an electronic door lock.

Background

The existing electronic door lock generally has two control modes, namely, the electronic door lock is automatically opened and closed under the control of a motor in the door lock, and the electronic door lock is manually opened and closed by a user manually rotating a handle on the door lock or pressing a button on the door lock. In order to be compatible with the functions of automatic unlocking and manual unlocking of the electronic door lock, a return-to-release mechanism is generally arranged in the electronic door lock, and the door lock is controlled to reset after unlocking or locking of the door lock is completed. For example, an electric lock proposed in the document 201810621618.8 is provided with a clutch mechanism on the lock, so that the motor can drive the gear in the lock to reset after unlocking or locking is completed.

Generally, a driving motor for driving the lock tongue to move is arranged in the electronic door lock, a sensor and a baffle plate are further arranged on the back-off mechanism, the sensor controls the rotation direction of the driving motor by detecting the position of the baffle plate, so that the back-off reset of the door lock is realized, and the position of the baffle plate is ensured to be motionless in the back-off reset process. However, during the rotation of the motor, the motor inevitably generates vibration during the operation or the motor is in an agenda under certain conditions, so that the sensor cannot determine the open/close state of the door lock, and the door lock cannot be opened or closed normally.

Accordingly, there is room for improvement in the art.

Disclosure of Invention

In view of the shortcomings of the prior art, the application provides an electronic door lock, which can limit a rotary table in the process of returning and taking off the electronic door lock, prevent the rotary table from rotating due to vibration generated by returning and taking off a driving gear, and ensure smooth operation of opening and closing the electronic door lock.

In order to solve the door lock and return and take off in-process carousel and rotate this problem because of the vibration, this application has proposed an electronic door lock, include:

a housing for connection to an external support;

the transmission assembly is arranged in the shell and comprises a turntable, and an arc-shaped convex area is arranged on the outer edge of the turntable;

the limiting component is arranged in the shell;

the limiting assembly comprises an elastic piece, a first limiting part and a second limiting part; the first spacing portion sets up on the arc protruding district, and the second spacing portion sets up on the elastic component, and the one end of elastic component is connected on the casing, and first spacing portion matches with the second spacing portion, and the elastic component extrudes and fixes the carousel through first spacing portion.

The first limiting part comprises a first protruding part, and the second limiting part comprises two first concave parts;

or the first limiting part comprises a second concave part, and the second limiting part comprises two second convex parts.

The elastic piece comprises a circular ring and a plate spring, the circular ring is connected to the shell, one end of the plate spring is connected to the circular ring, and a first protruding portion is formed at one end, deviating from the circular ring, of the plate spring.

The angle rotated by the turntable when the electronic door lock is unlocked or locked is a first angle, and the size of the included angle of the two first concave parts or the two second convex parts relative to the center of the turntable is equal to the size of the first angle.

The electronic door lock further comprises a rotating shaft, the rotating shaft is rotationally connected to the shell, the rotating disc is arranged at one end of the rotating shaft, and the rotating shaft and the rotating disc synchronously rotate.

The transmission assembly further includes:

the motor is connected to the shell, and a first gear is connected to the motor;

the driving gear is sleeved on the rotating shaft and meshed with the first gear.

The rotary table is also provided with a first bulge, and the rotary shaft is provided with a second groove matched with the first bulge;

and/or the turntable is also provided with a first groove, and the rotating shaft is provided with a second bulge matched with the first groove

The driving gear is provided with a bulge which is used for abutting against two ends of the arc-shaped bulge area and driving the turntable.

The electronic door lock also comprises a fixing piece, and the turntable is fixedly connected to the rotating shaft through the fixing piece.

The door lock still includes detection component, and detection component includes: a first sensing element, a second sensing element, a third sensing element, a first feedback element, and a second feedback element;

the first sensing element and the second sensing element are connected to the shell, the first sensing element and the second sensing element are arranged at intervals, and an included angle between the first sensing element and the second sensing element is a first angle; the first sensing element and the second sensing element are used for detecting the first feedback element;

the third sensing element is connected to the shell and is used for detecting the second feedback element;

the first feedback element and the second feedback element are both connected to the turntable.

The beneficial lies in that through setting up first depressed part or first bulge and set up the second bulge or the second depressed part that match with above-mentioned two in the one end of elastic component on the carousel, can prevent that the carousel from rotating because of the vibration at the in-process that the back of lock takes off, when unblanked or close the lock when needs, rotate the carousel and can make the elastic component receive the extrusion for first depressed part or first bulge and second bulge or second depressed part separate mutually, can not interfere normal switch lock flow.

Drawings

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

Fig. 1 is a schematic diagram of the overall structure of an electronic door lock according to the present embodiment;

FIG. 2 is a schematic view of the structure of the handle assembly provided in this embodiment;

fig. 3 is a schematic structural view of a turntable provided in the present embodiment;

fig. 4 is a schematic structural view of a driving gear provided in the present embodiment;

FIG. 5 is a schematic view of the structure of the elastic member according to the present embodiment;

fig. 6 is a sectional view of the electronic door lock provided in the present embodiment;

fig. 7 is a schematic view of the door lock provided in the present embodiment in a closed state;

fig. 8 is a schematic view of the door lock provided in the present embodiment in an unlocked state but with the drive gear not disengaged;

fig. 9 is a schematic diagram of the door lock provided in the present embodiment in an unlocked state and the driving gear completed.

In the figure:

10. a transmission assembly; 11. a turntable; 111. an arc-shaped convex area; 12. a drive gear; 121. a protrusion; 20. a limit component; 21. an elastic member; 211. a circular ring; 212. a leaf spring; 22. a protruding portion; 23. a recessed portion; 30. a detection assembly; 31. a first sensing element; 32. a second inductive element; 33. a third inductive element; 34. a fourth inductive element; 35. a first feedback element; 36. a second feedback element; 37. a third feedback element; 40. a rotating shaft; 50. a housing; 60. a handle assembly; 61. a transmission shaft; 62. a handle.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. 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 application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In addition, the technical features described above in the different embodiments of the present utility model may be combined with each other as long as they do not collide with each other.

The back-off refers to the process that the motor drives the driving gear 12 to rotate to adjust the abutting position of the driving gear 12 and the turntable 11 after the electronic door lock is unlocked or locked, and the turntable 11 does not rotate during the back-off process. Referring to fig. 1, in order to prevent the turntable 11 from rotating due to vibration during the back-off process, the present application proposes an electronic door lock, which includes a housing 50, a rotating shaft 40, a transmission assembly 10, a limiting assembly 20, a handle assembly 60, and a detecting assembly 30.

The housing 50 is used to lock the entire door lock to the door, the interior of which is used to house other components, and the housing 50 is internally provided with a circuit board for powering the electrical components within the housing 50.

Referring to fig. 2, the handle assembly 60 includes a transmission shaft 61 and a handle 62, one end of the transmission shaft 61 is connected with the rotation shaft 40 and rotates along with the rotation shaft 40, a groove for unlocking is provided on the transmission shaft 61, and the switch lock can be realized by rotating the rotation shaft 40. A handle 62 is provided on the drive shaft 61 at an end facing away from the rotation shaft 40, and a user can manually close or open the lock by rotating the handle 62. The housing 50 is provided with a circular hole for accommodating the transmission shaft 61 and the rotation shaft 40, so that the transmission shaft 61 and the rotation shaft 40 are rotatably connected to the housing 50.

Referring to fig. 3 and 4, the transmission assembly 10 in the present application includes three parts, namely a turntable 11, a motor and a driving gear 12, wherein the turntable 11 and the driving motor are disposed at one end of the rotating shaft 40 facing away from the handle assembly 60. Specifically, in the present embodiment the drive gear 12 is located between the handle assembly 60 and the turntable 11; the driving gear 12 is sleeved on the rotating shaft 40, and the driving gear 12 does not directly drive the rotating shaft 40 to rotate.

In addition, the turntable 11 in the present embodiment is clamped on the rotating shaft 40. The turntable 11 in this embodiment is divided into an inner ring and an outer ring, the inner ring is provided with a protrusion 22 extending toward the center of the circle, specifically, two protrusions disposed on the inner wall of the inner ring, and the rotating shaft 40 is provided with a recess 23 matching with the protrusion 22. It will be apparent to those skilled in the art that the engaging connection between the rotating shaft 40 and the rotating disc 11 may be achieved by providing the protruding portion 22 on the rotating shaft 40 and the recessed portion 23 on the rotating disc 11, or by providing the recessed portion 23 and the protruding portion 22 on the rotating disc 11 and providing the corresponding protruding portion 22 and the recessed portion 23 on the rotating shaft 40; of course, the turntable 11 and the rotating shaft 40 can be connected together by adopting a spline connection or other connection modes.

Referring to fig. 3, an arc-shaped protruding area 111 is further disposed on the outer wall of the outer ring of the rotary disc 11 in the present embodiment, a protrusion 121 extending toward the arc-shaped protruding area 111 is disposed on the driving gear 12, and the protrusion 121 in the present embodiment is a protruding block, so that the rotary disc 11 can be driven to rotate by being prevented from abutting against two ends of the arc-shaped protruding area 111, thereby realizing a switch lock. Thus, the motor drives the driving gear 12 to rotate so as to drive the rotating shaft 40 to rotate, thereby realizing automatic locking and unlocking.

A fixing member is also attached to the end of the shaft 40 facing away from the handle assembly 60, and the fixing member can be attached to the shaft 40 and fix the turntable 11. In this embodiment, the fixing member is two sections of positioning slots, and positioning blocks matched with the positioning slots are correspondingly arranged at the inner ring of the turntable 11, so that the rotating shaft 40 and the turntable 11 can be connected together in a clamping manner; of course, those skilled in the art may use other connection means to connect the rotary shaft 40 to the turntable 11.

For convenience of description, an angle through which the turntable 11 is rotated during the opening and closing of the lock will be defined as a first angle.

Referring to fig. 3 and 5, the limiting assembly 20 in the present embodiment includes an elastic member 21, a protruding portion 22 disposed on the elastic member 21, and two recessed portions 23 disposed on the arc protruding regions. Specifically, the elastic member 21 in the present embodiment includes a ring 211 and a plate spring 212, the turntable 11 is located in the ring 211, and the ring 211 is connected to the housing 50 to fix the elastic member 21; the leaf spring 212 is the arc, leaf spring 212 sets up in the outer fringe department of ring 211, the one end of leaf spring 212 is fixed on ring 211 and is exerted pressure along the direction towards the centre of a circle of ring 211, be provided with bulge 22 on the one side of leaf spring 212 towards carousel 11, bulge 22 sets up the one end of the junction of deviating from other rings 211 on leaf spring 212, form bulge 22 through the mode of crooked leaf spring 212 one end, be provided with two concave parts 23 that match with above-mentioned bulge 22 on arc protruding region 111, what is required is, the size of the big first angle of contained angle of size for the centre of a circle of carousel 11 between two concave parts 23 equals. Under the state that the electronic door lock is in unlocking or locking, the protruding part 22 is always matched with one of the two concave parts 23, and the function of fixing the rotary table 11 can be achieved, so that when the motor drives the driving gear 12 to return and take off, even if the door lock vibrates at the moment, the rotary table 11 can not rotate under the fixation of the limiting assembly 20, and the situation that the door lock cannot be detected at the moment is avoided, and the smooth operation of the switch lock is influenced. When unlocking or locking is needed, the plate spring 212 can be pressed by only rotating the rotary disc 11 to separate the convex part 22 from the concave part 23, so that the limit component 20 does not interfere with the unlocking and locking process of the electronic door lock.

It will of course be obvious to a person skilled in the art that it is also possible to provide the projections 22 on the arcuate raised areas 111 and the recesses 23 on the elastic members 21.

Referring to fig. 3, 4 and 6, the electronic door lock further includes a detecting component 30 for detecting a state of the door lock and a rotation direction of the motor.

The detecting assembly 30 in the present embodiment includes a first sensing element 31, a second sensing element 32, a third sensing element 33, a fourth sensing element 34, a first feedback element 35, a second feedback element 36, and a third feedback element 37. The first sensing element 31, the second sensing element 32 and the fourth sensing element 34 are optocoupler sensors, and the third sensing element 33 is a hall sensor; and the first sensing element 31, the second sensing element 32, the third sensing element 33 and the fourth sensing element 34 are all arranged on a circuit board in the shell 50. The first feedback element 35 and the second feedback element 36 in this embodiment are both connected to the turntable 11, both connected to the same end of the arcuate raised area 111. The first feedback element 35 is a light shielding baffle, the first sensing element 31 and the second sensing element 32 are used for detecting the first feedback element 35, the first sensing element 31 and the second sensing element 32 are both arranged on the motion track of the first feedback element 35, and the included angle between the first sensing element 31 and the second sensing element 32 relative to the circle center of the turntable 11 is equal to the first angle. The third sensor element 33 is arranged on the movement path of the second feedback element 36, and the second feedback element 36 is made of a magnet and can therefore be detected by a hall sensor, i.e. the third sensor element 33. In the present embodiment, the third sensing element 33 is disposed near the first sensing element 31, and when the second feedback element 36 is located at the third sensing element 33, the door lock is in the locked state, and when the third sensing element 33 cannot detect the second feedback element 36, the door lock is indicated to be in the locked state.

Taking the automatic unlocking process as an example, referring to fig. 7 to 9, in the automatic unlocking process, the first feedback element 35 rotates from the first sensing element 31 to the second sensing element 32, and the protrusion 121 abuts against one side of the arc-shaped protrusion area and drives the arc-shaped protrusion area rotating turntable 11 to rotate. After the second sensing element 32 detects the first feedback element 35, indicating that unlocking is complete, the motor stops rotating and begins to rotate in the opposite direction (relative to the direction of rotation of the first feedback element 35) and the back-off process begins.

When the lock is released, the motor drives the driving gear 12 to rotate, so that the protrusion 121 is abutted against the other end of the arc-shaped protrusion area 111, and smooth locking is ensured.

The third feedback element 37 is also a shading baffle, the third feedback element 37 is arranged on the driving gear 12, and an included angle between the third feedback element 37 and the protrusion 121 relative to the center of the driving gear 12 is equal to an included angle between two ends of the arc-shaped protrusion area 111 relative to the center of the turntable 11. In this embodiment the fourth sensing element 34 is arranged close to the second sensing element 32 and the motor immediately shuts off the power when the fourth sensing element 34 detects the third feedback element 37.

In summary, in the present application, the limit assembly 20 is provided to prevent the turntable 11 from rotating due to the vibration generated by the motor during the back-off process, so that the displacement occurs between the sensing element and the feedback element in the detection assembly 30, and the problem that the electronic door lock cannot detect the state of the door lock occurs; the elastic piece 21 in the limiting component 20 can limit the rotary disc 11, and can not interfere with the normal unlocking and locking of the door lock.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. An electronic door lock, comprising:

a housing for connection to an external support;

the transmission assembly is arranged in the shell and comprises a turntable, and an arc-shaped protruding area is arranged on the outer edge of the turntable;

the limiting component is arranged in the shell;

the limiting assembly comprises an elastic piece, a first limiting part and a second limiting part; the first limiting part is arranged on the arc-shaped protruding area, the second limiting part is arranged on the elastic piece, one end of the elastic piece is connected to the shell, the first limiting part is matched with the second limiting part, and the elastic piece extrudes and fixes the rotary table through the first limiting part.

2. The electronic door lock of claim 1, wherein the first limiting portion comprises a first protruding portion and the second limiting portion comprises two first recessed portions;

or the first limiting part comprises a second concave part, and the second limiting part comprises two second convex parts.

3. The electronic door lock according to claim 2, wherein the elastic member includes a circular ring connected to the housing and a plate spring having one end connected to the circular ring, and having one end facing away from the circular ring formed with a first projection.

4. The electronic door lock according to claim 3, wherein an angle through which the turntable rotates when the electronic door lock is unlocked or locked is a first angle, and an included angle between the two first concave portions or the two second convex portions with respect to the center of the turntable is equal to the first angle.

5. The electronic door lock of claim 1, further comprising a rotating shaft rotatably connected to the housing, wherein the turntable is disposed at one end of the rotating shaft, and wherein the rotating shaft rotates in synchronization with the turntable.

6. The electronic door lock of claim 5, wherein the transmission assembly further comprises:

the motor is connected to the shell, and a first gear is connected to the motor;

the driving gear is sleeved on the rotating shaft and meshed with the first gear.

7. The electronic door lock according to claim 5, wherein a first protrusion is further provided on the turntable, and a second groove matched with the first protrusion is provided on the rotating shaft;

and/or the turntable is also provided with a first groove, and the rotating shaft is provided with a second protrusion matched with the first groove.

8. The electronic door lock according to claim 6, wherein the driving gear is provided with a protrusion for abutting against both ends of the arc-shaped protrusion area and driving the turntable.

9. The electronic door lock of claim 5, further comprising a securing member, the turntable being fixedly coupled to the spindle by the securing member.

10. The electronic door lock of claim 3, further comprising a detection assembly comprising: a first sensing element, a second sensing element, a third sensing element, a first feedback element, and a second feedback element;

the first sensing element and the second sensing element are connected to the shell, the first sensing element and the second sensing element are arranged at intervals, and an included angle between the first sensing element and the second sensing element is a first angle; the first sensing element and the second sensing element are used for detecting the first feedback element;

the third sensing element is connected to the housing and is used for detecting the second feedback element;

the first feedback element and the second feedback element are both connected to the turntable.