Push-pull type electronic blackboard

Abstract

The utility model relates to the technical field of electronic blackboards, and particularly discloses a push-pull type electronic blackboard which comprises a rear supporting plate, a sliding assembly is arranged at the top of the rear supporting plate, a display screen is fixedly installed in the center of the front end of the rear supporting plate, and supporting bodies are fixedly arranged at the lower positions of the two sides of the display screen and the front end face of the rear supporting plate. The lower end of the supporting body is connected with a telescopic assembly providing push-pull power, one side of the supporting body is fixedly provided with a supporting connecting assembly playing a bearing role, the upper end of the supporting body is fixedly provided with a fixing base, the fixing base is provided with a moving assembly, and the front side of the supporting body is provided with a dust cover. The push-and-pull action is achieved through the arrangement of the telescopic assembly, the supporting and connecting assembly, the moving assembly and the sliding assembly, the dust cover is arranged at the front end of the sliding assembly to isolate most dust, and by replacing a traditional push-and-pull mechanism, the problem that matching is affected due to the fact that dust is accumulated in a sliding groove is solved.

Description

Technical Field

[0001] This utility model relates to the field of electronic blackboard technology, and in particular to a push-pull electronic blackboard. Background Technology

[0002] An electronic blackboard is a technological electronic product that replaces the traditional blackboard. It integrates LCD screen technology and computer technology. In the process of ideological and political education, it can display and play pictures, texts and videos on the blackboard. When used in conjunction with a writing board, it can help teachers to teach better.

[0003] Most existing electronic blackboards have a problem where the rollers between the movable writing board and the fixed frame easily generate dust when writing or erasing chalk. The dust accumulates in the rollers and rollers, affecting their fit. Over time, this will shorten the lifespan of the blackboard, which needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a push-pull electronic blackboard in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A push-pull electronic blackboard includes a rear support plate with a sliding component on the top. A display screen is fixedly installed at the center of the front end of the rear support plate. Support bodies are fixedly installed on both sides of the display screen at lower positions and to the front end of the rear support plate. A telescopic component that provides push-pull power is connected to the lower end of the support body. A support connecting component that serves to support is fixedly installed on one side of the support body. A fixed base is fixedly installed on the upper end of the support body. A movable component is installed on the fixed base. A connecting rod is connected to one end of the telescopic component, the support connecting component, and the movable component. The lower end of the connecting rod is rotatably connected to the telescopic component, the lower middle part of the connecting rod is rotatably connected to the support connecting component, and the upper end of the connecting rod is rotatably connected to the movable component. A dust cover is provided on the front side of the support body.

[0007] Further configuration: The sliding assembly includes a top plate fixedly installed on the front end face of the rear support plate, and a slide rail is provided on the upper end face of the top plate, with a sliding pair slidably installed in the slide rail.

[0008] Further configuration: The telescopic component includes a connecting seat fixedly installed at the lower end of the support body, a connecting piece rotatably installed on the connecting seat, a telescopic cylinder fixedly installed on the end face of the connecting piece, a first connecting frame fixedly installed at the telescopic end of the telescopic cylinder, and the first connecting frame rotatably installed with the connecting rod.

[0009] Further configuration: The support connection assembly includes a support base fixedly installed on the side end face of the support body, and a second connecting frame fixedly installed at the end of the support base. The second connecting frame is rotatably installed at the lower position of the middle end of the connecting rod.

[0010] Further configuration: The movable component includes a slide seat fixedly installed on the upper surface of the fixed base, a T-shaped slider slidably installed on the slide seat, a second connecting rod rotatably installed at one end of the slider, the other end of the second connecting rod rotatably connected to the connecting rod, a writing board fixedly installed on the upper surface of the slider, and a sliding component fixedly connected to the upper surface of the writing board.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a telescopic component, a support connection component, a moving component, and a sliding component to realize the push-pull action, and the front end of the sliding component is provided with a dust cover to isolate most of the dust, the problem of dust accumulation in the slide groove and affecting the fit is solved by replacing the traditional push-pull mechanism. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is an isometric view of a push-pull electronic blackboard according to the present invention;

[0014] Figure 2 This is an internal structural diagram of a push-pull electronic blackboard according to the present invention;

[0015] Figure 3 This is a partial view of the internal structure of a push-pull electronic blackboard according to the present invention;

[0016] Figure 4 This is a partial view of a push-pull electronic blackboard according to the present invention.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. Rear support plate; 11. Top plate; 12. Display screen; 13. Dust cover; 14. Slide rail; 2. Support body; 21. Connecting seat; 22. Support seat; 23. Fixed seat; 24. Slide rail seat; 25. Connecting piece; 26. Telescopic cylinder; 27. First connecting frame; 28. Second connecting frame; 29. ​​Connecting rod; 201. Second connecting rod; 202. Sliding piece; 203. Writing board; 213. Sliding pair. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figures 1-4 As shown, a push-pull electronic blackboard includes a rear support plate 1. A sliding component is provided on the top of the rear support plate 1. A display screen 12 is fixedly installed at the center of the front end of the rear support plate 1. Support bodies 2 are fixedly installed on both sides of the display screen 12 at lower positions and fixed to the front end of the rear support plate 1. A telescopic component that provides push-pull power is connected to the lower end of the support body 2. A support connecting component that serves to support is fixedly installed on one side of the support body 2. A fixed seat 23 is fixedly installed on the upper end of the support body 2. A movable component is installed on the fixed seat 23. A connecting rod 29 is connected to one end of the telescopic component, the support connecting component, and the movable component. The lower end of the connecting rod 29 is rotatably connected to the telescopic component. The lower middle position of the connecting rod 29 is rotatably connected to the support connecting component. The upper end of the connecting rod 29 is rotatably connected to the movable component. A dust cover 13 is provided on the front side of the support body 2.

[0023] In this embodiment, the sliding assembly includes a top plate 11 fixedly installed on the top front end face of the rear support plate 1. The upper end face of the top plate 11 is provided with a slide rail 14, and a sliding pair 213 is slidably installed in the slide rail 14.

[0024] In this embodiment: the telescopic component includes a connecting seat 21 fixedly installed at the lower end of the support body 2, a connecting member 25 rotatably installed on the connecting seat 21, a telescopic cylinder 26 fixedly installed on the end face of the connecting member 25, a first connecting frame 27 fixedly installed at the telescopic end of the telescopic cylinder 26, and the first connecting frame 27 rotatably installed with the connecting rod 29; the support connection component includes a support seat 22 fixedly installed on the side end face of the support body 2, a second connecting frame 28 fixedly installed at the end of the support seat 22, and the second connecting frame 28 rotatably installed with the connecting rod 29 at a lower position near the middle; the moving component includes a sliding seat 24 fixedly installed on the upper end face of the fixed seat 23, and a sliding component is mounted on the sliding seat 24. A T-shaped sliding member 202 is provided. A second connecting rod 201 is rotatably mounted on one end of the sliding member 202. The other end of the second connecting rod 201 is rotatably connected to the connecting rod 29. A writing board 203 is fixedly mounted on the upper surface of the sliding member 202. A sliding pair 213 is fixedly connected to the upper surface of the writing board 203. When it is necessary to open or close the writing board 203, the telescopic cylinder 26 extends and retracts, causing the first connecting frame 27 to move, while the second connecting frame 28 is fixed in position. Through the lever principle, the upper end of the connecting rod 29 swings left and right, thereby causing the second connecting rod 201 to move left and right, thus enabling the sliding member 202 and the writing board 203 on the sliding pair 213 to be opened or closed.

[0025] The working principle and usage process of this utility model are as follows: When using the device, a large amount of dust will fall when writing on the writing board 203. The dust cover 13 will isolate most of the dust. When it is necessary to open or close the writing board 203, the telescopic cylinder 26 extends and retracts, driving the first connecting frame 27 to move, while the second connecting frame 28 is fixed in position. Through the lever principle, the upper end of the connecting rod 29 swings left and right, thereby driving the second connecting rod 201 to move left and right. This allows the writing board 203 on the sliding part 202 and the sliding pair 213 to be opened or closed. By replacing the traditional push-pull mechanism, the problem of dust accumulating in the slide groove and affecting the fit is solved.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A push-pull electronic blackboard, comprising a back support plate (1), the top of the back support plate (1) is provided with a sliding assembly, and a display screen (12) is fixedly installed at the center of the front end of the back support plate (1), characterized in that: The display screen (12) is provided with a support main body (2) fixedly arranged at the lower position on both sides of the display screen (12) and the front end face of the rear support plate (1), the support main body (2) is connected with an extension assembly providing a push-pull power at the lower end, a support connecting assembly is fixedly installed at one side of the support main body (2) and plays a supporting role, a fixing seat (23) is fixedly installed at the upper end of the support main body (2), a moving assembly is installed on the fixing seat (23), the extension assembly, the support connecting assembly and the moving assembly are connected with a connecting rod (29) at one end, the connecting rod (29) is rotatably connected with the extension assembly at the lower end, the connecting rod (29) is rotatably connected with the support connecting assembly at the lower position of the middle end, and the connecting rod (29) is rotatably connected with the moving assembly at the upper end, and a dust cover (13) is arranged on the front side of the support main body (2).

2. The push-pull electronic blackboard according to claim 1, wherein: The sliding assembly comprises a top plate (11) fixedly installed on the top front end face of the rear support plate (1), and a sliding channel (14) is arranged on the upper end face of the top plate (11), and a sliding subassembly (213) is slidably installed in the sliding channel (14).

3. The push-pull electronic whiteboard according to claim 1, wherein: The extension assembly comprises a connecting seat (21) fixedly installed at the lower end of the support main body (2), a connecting piece (25) is rotatably installed on the connecting seat (21), an extension cylinder (26) is fixedly arranged on the end face of the connecting piece (25), a first connecting frame (27) is fixedly installed on the extension end of the extension cylinder (26), and the first connecting frame (27) is rotatably installed with the connecting rod (29).

4. The push-pull electronic whiteboard of claim 1, wherein: The support connecting assembly comprises a support seat (22) fixedly installed on the side end face of the support main body (2), a second connecting frame (28) is fixedly installed on the end of the support seat (22), and the second connecting frame (28) is rotatably installed with the lower position of the middle end of the connecting rod (29).

5. The push-pull electronic whiteboard of claim 2, wherein: The moving assembly comprises a sliding groove seat (24) fixedly installed on the upper end face of the fixing seat (23), a sliding piece (202) in a T-shaped form is slidably installed on the sliding groove seat (24), a second connecting rod (201) is rotatably installed at one end of the sliding piece (202), the other end of the second connecting rod (201) is rotatably connected with the connecting rod (29), a writing board (203) is fixedly installed on the upper end face of the sliding piece (202), and the sliding subassembly (213) is fixedly connected with the upper end face of the writing board (203).

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