CN213847211U

CN213847211U - Linkage assembly, camera linkage mechanism and electronic equipment

Info

Publication number: CN213847211U
Application number: CN202022562056.XU
Authority: CN
Inventors: 何伟; 杨小云; 徐伟; 李心琪
Original assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Current assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-30
Anticipated expiration: 2030-11-06

Abstract

The application provides a linkage subassembly, camera link gear and electronic equipment, wherein the linkage subassembly includes drive arrangement, box body, connecting axle, cam, connecting rod component and connecting piece. The box body is provided with an opening and closing cover. The driving device drives the connecting shaft to rotate. The cam is mounted on the connecting shaft and rotates around the connecting shaft. One end of the connecting rod component is matched with the cam and moves along the tangential direction of the edge of the cam, and the other end of the connecting rod component is movably matched with the opening and closing cover so as to open or close the opening and closing cover. The connecting piece is located the box body, and the one end of connecting piece is connected in the connecting axle and is revolved around the connecting axle and rotate to make the other end of connecting piece stretch out the box body or withdraw in the box body. The linkage assembly can synchronously control the actions of the two driven parts of the connecting rod mechanism and the connecting piece through a single driving device, so that the cover opening and closing and the connecting piece can be effectively avoided in space and time, the interference is avoided, and the manufacturing cost is greatly reduced.

Description

Linkage assembly, camera linkage mechanism and electronic equipment

Technical Field

The application belongs to the technical field of electronic equipment, and more specifically relates to a linkage assembly, a camera linkage mechanism and electronic equipment.

Background

Nowadays, with the continuous deepening of internet technology, the functions of entertainment equipment such as televisions are more diversified, and televisions with cameras appear on the market. In order to increase the screen occupation ratio and the attractiveness of a television, a hidden camera is adopted to be the choice of a plurality of television manufacturers, and a lifting camera and a rotary camera are common. To the structure of the rotary camera, a dust cover is generally arranged after the camera is retracted. The prior art generally adopts two sets of power modules to realize the rotation action of two parts of shield and camera respectively, but this kind of design has following shortcoming: firstly, when the unscrewing mechanism for rotating the dustproof cover breaks down, the camera impacts the dustproof cover, so that the camera is damaged and scrapped; secondly, two sets of unscrewing mechanisms are needed, the structure is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a linkage assembly, a camera linkage mechanism and electronic equipment to solve the technical problem that the rotary camera structure in the prior art can cause the camera to be knocked and damaged when the cover is opened and the fault occurs.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a linkage assembly is provided, which includes a driving device, a box body, a connecting shaft, a cam, a connecting rod member and a connecting piece. The box body is internally provided with a cavity and is provided with an opening and closing cover. The driving device drives the connecting shaft to rotate. The cam is mounted on the connecting shaft and rotates around the connecting shaft. One end of the connecting rod component is matched with the cam and moves along the tangential direction of the edge of the cam, and the other end of the connecting rod component is movably matched with the opening and closing cover so as to open or close the opening and closing cover. The connecting piece is located the box body, and the one end of connecting piece is connected in the connecting axle and is revolved around the connecting axle and rotate to make the other end of connecting piece stretch out the box body or withdraw in the box body.

Optionally, the link member includes a first rolling member, a first link, a second link, a third link, and a second rolling member, the first rolling member is engaged with the cam and moves along a tangential direction of the edge of the cam, one end of the first link is connected to the first rolling member, the first link, the second link, and the third link are sequentially connected, and the second rolling member is connected to an end of the third link and movably engages with an inner surface of the opening and closing cover.

Optionally, the first rolling member and the second rolling member are both rollers or bearings.

Optionally, the first link, the second link, and the third link are integrally formed.

Optionally, an included angle between the first link and the second link is a right angle or an obtuse angle, and an included angle between the second link and the third link is a right angle or an obtuse angle.

Optionally, the junction of the second link and the third link is fixed to the box.

Optionally, the linkage assembly includes an elastic member, one end of the elastic member is connected to a connection position of the second connecting rod and the third connecting rod, and the other end of the elastic member is fixed to the inner surface of the opening and closing cover; in the process of opening the opening and closing cover, the elastic piece deforms, and after the connecting piece extends out of the box body to the maximum stroke position, the opening and closing cover is closed again under the action of the elastic piece.

Optionally, the linkage assembly includes a transmission device, the driving device drives the connecting shaft to rotate through the transmission device, and the transmission device is a parallel shaft transmission gearbox, a planetary transmission gearbox or a combination of the two.

According to another aspect of the present application, there is further provided a camera linkage mechanism comprising the linkage assembly of any one of the above and a camera. The camera is arranged at the end part of the connecting piece and extends out of the box body or retracts into the box body along with the connecting piece.

According to yet another aspect of the present application, there is further provided an electronic device including the camera linkage mechanism described above.

The application provides a linkage subassembly's beneficial effect lies in: compared with the prior art, the linkage assembly can synchronously control the actions of the two driven parts of the connecting rod mechanism and the connecting piece through a single driving device, so that the connecting piece extends out of the box body or is retracted into the box body when the cover is opened or closed through the connecting rod mechanism. Therefore, the opening and closing cover and the connecting piece are effectively avoided in space and time, and interference is avoided. Compared with the prior art which needs two sets of independent rotating mechanisms, the linkage mechanism has simpler structure and greatly reduces the manufacturing cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a camera linkage mechanism provided in an embodiment of the present application, wherein the camera linkage mechanism includes the linkage assembly;

fig. 2 is a schematic perspective view of a camera linkage mechanism provided in an embodiment of the present application from another view angle;

fig. 3 is a schematic structural view of a camera linkage mechanism provided in the embodiment of the present application in an initial closed state of an opening and closing cover;

fig. 4 is a schematic structural diagram of a camera linkage mechanism provided in an embodiment of the present application in a half-open state;

FIG. 5 is a schematic view of a camera linkage mechanism according to an embodiment of the present application, in which a camera is fully extended and an opening/closing cover is closed.

Wherein, in the figures, the respective reference numerals:

1-a linkage assembly; 10-a drive device; 20-a box body; 21-opening and closing the cover; 22-a housing; 23-a cover plate; 30-a connecting shaft; 40-cam; 50-a linkage mechanism; 51-a first rolling member; 52-a first link; 53-a second link; 54-a third link; 55-a second rolling member; 60-a connector; 70-a transmission; 80-a resilient member; 2-camera.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application 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 merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" 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 will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2 together, a linkage assembly 1 according to an embodiment of the present application will now be described. The linkage assembly 1 includes a driving device 10, a case 20, a connecting shaft 30, a cam 40, a link member 50, and a connecting member 60.

The driving device 10 is a power source of the whole linkage assembly 1 and can be electrically connected with the control circuit through a terminal wire. Optionally, the driving device 10 is a motor.

The box 20 has a cavity therein, and the box 20 has a dust-proof opening/closing cover 21. Specifically, the box 20 includes a housing 22 and a cover 23, the housing 22 forms the cavity therein and is used for fixing other components of the linkage assembly 1, and in addition, the housing 22 is also used for fixing the whole linkage assembly 1 to other devices such as electronic devices. The cover plate 23 is fixed to the housing 21 by fasteners such as screws. The opening and closing cover 21 is composed of two side walls which are vertically connected into a whole, that is, the opening and closing cover 21 is a two-sided body which is vertical to each other, and one end of the opening and closing cover 21 is rotatably connected to the housing 22 through a rotating shaft, so that the opening and closing of the opening and closing cover 21 are realized. The opening and closing cover 21, the shell 22 and the cover plate 23 are matched to realize the sealing of the box body. In other embodiments, the opening and closing cover 21 can be designed in other reasonable shapes, such as a circular arc.

Further, the linkage assembly 1 further includes a transmission device 70, and an input end of the transmission device 70 is fixedly connected with an output shaft of the driving device 10. Alternatively, the transmission 70 is a gearbox, for example the transmission 70 is a parallel shaft transmission gearbox, a planetary transmission gearbox, or a combination of both. In this embodiment, the transmission device 70 is a planetary transmission gear box, which can effectively reduce the overall volume of the linkage assembly 1.

The connecting shaft 30 is fixedly connected to an output end of the transmission device 70, for example, the connecting shaft 30 and the transmission device 70 are fixed through a D-shaped limiting hole, so that the connecting shaft 30 can rotate along with the power output of the transmission device 70. The axes of the driving device 10, the transmission device 70 and the connecting shaft 30 are parallel, and the driving device 10 drives the connecting shaft 30 to rotate through the transmission device 70. In this embodiment, the driving device 10 and the transmission device 70 are both located outside the box 20, one end of the connecting shaft 30 is connected to the transmission device 70, the other end of the connecting shaft 30 penetrates and extends into the box 20, and the cam 40, the link member 50 and the connecting shaft 60 are all located in a cavity of the box 20.

The cam 40 is fixedly mounted on the connecting shaft 30, and the cam 40 is not displaced in the axial direction of the connecting shaft 30. The cam 40 rotates together with the connecting shaft 30 about the axis of the connecting shaft 30. Alternatively, the cam 40 is a symmetrical structure.

One end of the link member 50 is engaged with the cam 40 and moves in a tangential direction of an edge of the cam 40, and the other end of the link member 50 is movably engaged with the opening and closing cover 21 to open or close the opening and closing cover 21 by the operation of the link member 50.

Specifically, the link member 50 includes a first roller 51, a first link 52, a second link 53, a third link 54, and a second roller 55. Wherein the first rolling member 51 and the cam 40 are engaged and move in a tangential direction of the edge of the cam 40. Optionally, the first rolling member 51 is a roller or a bearing. One end of the first link 52 is connected to the first rolling member 51, the other end of the first link 52 is connected to one end of the second link 53, and the other end of the second link 53 is connected to one end of the third link 54. That is, the first link 52, the second link 53, and the third link 54 are connected in sequence. Wherein the junction of the second link 53 and the third link 54 is fixed to the housing 22 of the case 20. The other end of the third link 54 is connected to a second rolling member 55, and the second rolling member 55 is movably engaged with the inner surface of the opening/closing cover 21, that is, the second rolling member 55 is movable on the inner surface of the opening/closing cover 21, thereby opening or closing the opening/closing cover 21. Optionally, the second rolling member 55 is a roller or a bearing.

In the present embodiment, the first link 52, the second link 53, and the third link 54 are three independent links. In other embodiments, the first link 52, the second link 53 and the third link 54 may be integrally formed.

The angle between the first link 52 and the second link 53 is a right angle or an obtuse angle. The angle between the second link 53 and the third link 54 is also a right angle or an obtuse angle.

The connector 60 is located in a cavity of the case 20. One end of the link 60 is fixedly connected to the connecting shaft 30 and rotates about the axis of the connecting shaft 30 with the connecting shaft 30. The connecting member 60 is fixed in a limited manner by the snap spring along the axial direction of the connecting shaft 30, so that the connecting member 60 has no axial displacement. Optionally, in this embodiment, the connecting member 60 is an L-shaped link. Since the connecting shaft 30 drives the cam 40 to rotate around the connecting shaft 30, the cam 40 pushes one end of the link member 50, so that the link member 50 rotates around the connection between the second link 53 and the third link 54, and thus the other end of the link member 50 pushes the inner surface of the opening and closing cover 21, so that the opening and closing cover 21 rotates around the rotating shaft to open or close; on the other hand, the connecting shaft 30 also drives one end of the link 60 to rotate, so that the other end of the link 60 synchronously rotates to be protruded out of the case 20 or retracted into the case 20 while the opening and closing cover 21 is opened or closed.

Further, the linkage assembly further comprises a bearing, and the bearing is arranged at the end of the connecting shaft 30 and is matched with the shell 22, so that the connecting shaft 30, the cam 40 and the connecting piece 60 are ensured to be stably installed.

The linkage assembly 1 further comprises an elastic member 80. One end of the elastic member 80 is connected to the connection point of the second link 53 and the third link 54, and the other end of the elastic member 80 is fixed to the inner surface of the opening and closing cover 21. In the process of opening the opening/closing cover 21, the elastic member 80 is deformed due to the change in the position of the opening/closing cover 21. When the connecting member 60 extends out of the box body 20 to the maximum stroke position, the opening and closing cover 21 is closed again by the elastic force of the elastic member 80.

The working process of the linkage assembly 1 is as follows: as shown in fig. 3, in the initial state, the opening and closing cover 21 is closed, the first rolling member 51 is in contact engagement with the first position of the cam 40, the connecting member 60 is also received in the cavity in the case 20, and the elastic member 80 is in a natural state. As shown in fig. 4, when it is required to open the opening and closing cover 21 and extend the connecting member 60 out of the box 20, the driving device 10 operates and drives the connecting shaft 30 to rotate through the transmission device 70, taking the direction shown in fig. 4 as an example, the connecting shaft 30 drives the cam 40 to rotate counterclockwise, the cam 40 drives the link member 50 to move relatively, so that the link member 50 pushes and gradually opens the opening and closing cover 21, and at this time, the first rolling member 51 is in contact with the second position of the cam 40. The elastic member 80 is deformed according to the position change of the opening/closing cover 21 during the opening of the opening/closing cover 21. Meanwhile, the connecting shaft 30 drives the connecting member 60 to rotate counterclockwise, so that the connecting member 60 gradually extends out of the case 20. The condition shown in fig. 4 is that the link 60 is extended approximately to a half stroke position, i.e., in a half open condition. As the driving device 10 drives the connecting shaft 30 to continue rotating, the cam 40 continues rotating counterclockwise, the position where the connecting rod member 50 and the cam 40 are in cooperative contact is a curved surface with a small radian and close to a vertical line, that is, the cam 40 is at a far rest position, at this time, the cam 40 drives the connecting rod member 50 to have a small amplitude movably, and the opening and closing cover 21 is hardly pushed to continue to be opened, that is, the opening and closing cover 21 is already opened to the maximum; but at this time, the link 60 continues to rotate counterclockwise together with the link shaft 30, so that the link 60 further protrudes out of the case 20. Further, as the driving device 10 drives the connecting shaft 30 to continue rotating, the connecting member 60 continues rotating and extends out of the box body 20 to the maximum stroke position, and at this time, the engagement between the cam 40 and the link member 50 is in the return stage, that is, the pushing-open action of the link member 50 on the opening and closing cover 21 is gradually weakened, so that the opening and closing cover 21 is gradually re-closed under the elastic force of the elastic member 80. As shown in fig. 5, fig. 5 is a state that the connecting element 60 has been extended out of the box body 20 to the maximum stroke position, that is, at this time, the connecting element 60 has been fully extended out of the box body 20, the first rolling element 51 is in contact engagement with the third position of the cam 40, the link member 50 returns to the initial state, the opening and closing cover 21 is in the fully closed and closed state under the action of the elastic element 80, and the elastic element 80 returns to the initial natural state.

Conversely, when the connecting element 60 needs to be retracted into the box body, the operation is the same. Firstly, the driving device 10 drives the connecting shaft 30 to rotate reversely, the connecting shaft 30 drives the cam 40 to rotate reversely, the cam 40 drives the link mechanism 50 to move relatively, so that the link mechanism 50 pushes and gradually opens the opening and closing cover 21 until the opening and closing cover 21 is completely opened, and in the process, the elastic piece 80 deforms along with the position change of the opening and closing cover 21; at the same time, the connecting shaft 30 drives the connecting member 60 to rotate reversely, so that the connecting member 60 is gradually retracted into the case 20. As the driving device 10 drives the connecting shaft 30 to continue to rotate reversely, the connecting element 60 continues to rotate until it is completely retracted into the box body 20, and at this time, the cooperation between the cam 40 and the link member 50 is in the return stage again, that is, the pushing action of the link member 50 on the opening and closing cover 21 is gradually weakened, so that the opening and closing cover 21 is gradually closed again under the elastic force of the elastic element 80.

Compared with the prior art, the linkage assembly 1 provided by the present application can synchronously control the actions of the two components of the link member 50 and the connecting member 60 by using one driving device 10, so that the link member 50 opens or closes the opening and closing cover 21, and the connecting member 60 correspondingly extends out of the box body 20 or retracts into the box body 20. The opening and closing of the opening and closing cover 21 and the extending and retracting actions of the connecting piece 60 are synchronous and do not interfere with each other, that is, the connecting piece 60 does not collide with the opening and closing cover when extending or retracting, and effective cooperation and avoidance in time and space are realized. The closing action after the opening and closing cover 21 is opened is realized by the elastic piece 80 connected with the opening and closing cover, and the reliability is improved.

Further, according to another aspect of the present application, the present application also provides a camera linkage mechanism, which includes the above-mentioned linkage assembly 1 and the camera 2. The camera 2 is mounted on the end of the connecting member 60 remote from the connecting shaft 30. Thus, the camera 2 is extended out of the case 20 or retracted into the case 20 along with the connection member 30. The camera linkage mechanism can be applied to electronic equipment, such as a television with a camera. In practical application, the action of the driving device 10 can be automatically controlled through a program, so that when the camera 2 needs to be started to work, the driving device 10 drives the connecting shaft 30 to rotate through the transmission device 70, on one hand, the connecting shaft 30 sequentially passes through the cam 40 and the link mechanism 50 to open the opening and closing cover 21, on the other hand, the connecting shaft 30 drives the connecting piece 60 to rotate, and meanwhile, the camera 2 extends out of the box body 20 along with the rotation of the connecting piece 60 to perform shooting work. On the contrary, when the camera 2 needs to stop working, the driving device 10 drives the connecting shaft 30 to rotate through the transmission device 70, the connecting shaft 30 drives the connecting piece 60 to rotate on one hand, the camera 2 is retracted into the box body 20 along with the rotation of the connecting piece 60, meanwhile, the connecting shaft 30 sequentially passes through the cam 40 and the link mechanism 50 to close the opening and closing cover 21 on the other hand, and thus, the camera 2 is hidden and stored in the box body 20 to play a dustproof role.

Further, according to another aspect of the present application, the present application further provides an electronic device including the camera linkage mechanism described above. The electronic device may be a television, an industrial camera, or the like.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A linkage assembly, comprising:

a drive device;

the box body is internally provided with a cavity and is provided with an opening and closing cover;

the driving device drives the connecting shaft to rotate;

the cam is mounted on the connecting shaft and rotates around the connecting shaft;

one end of the connecting rod component is matched with the cam and moves along the tangential direction of the edge of the cam, and the other end of the connecting rod component can be movably matched with the opening and closing cover so as to open or close the opening and closing cover;

the connecting piece, the connecting piece is located in the box body, the one end of connecting piece connect in the connecting axle is around the connecting axle is rotatory, so that the other end of connecting piece stretches out outside the box body or withdraws in the box body.

2. The linkage assembly according to claim 1, wherein the link member includes a first roller, a first link, a second link, a third link, and a second roller, the first roller and the cam are engaged and move in a tangential direction of the cam rim, one end of the first link is connected to the first roller, the first link, the second link, and the third link are connected in sequence, and the second roller is connected to an end of the third link and movably engages an inner surface of the opening and closing cover.

3. A linkage assembly according to claim 2, wherein the first and second rolling members are both rollers or bearings.

4. A linkage assembly according to claim 2, wherein said first link, said second link and said third link are integrally formed.

5. A linkage assembly according to claim 2, wherein the angle between the first link and the second link is a right angle or an obtuse angle, and the angle between the second link and the third link is a right angle or an obtuse angle.

6. A linkage assembly according to claim 2, wherein the junction of the second link and the third link is fixed to the box.

7. A linkage assembly according to any one of claims 2 to 6, wherein the linkage assembly includes a resilient member, one end of the resilient member being connected to the junction of the second link and the third link, the other end of the resilient member being secured to the inner surface of the open/close cover; in the process of opening the opening and closing cover, the elastic piece deforms, and after the connecting piece extends out of the box body to the maximum stroke position, the opening and closing cover is closed again under the action of the elastic piece.

8. A linkage assembly according to any one of claims 1 to 6, wherein the linkage assembly includes a transmission through which the drive means drives the connecting shaft in rotation, the transmission being a parallel axis drive gearbox, a planetary drive gearbox or a combination of both.

9. A camera linkage mechanism, comprising:

a linkage assembly according to any one of claims 1 to 8;

the camera is installed at the end part of the connecting piece and extends out of the box body or retracts into the box body along with the connecting piece.

10. An electronic device, characterized in that the electronic device comprises the camera linkage according to claim 9.