Orbital transfer eye protection blackboard

Abstract

The utility model discloses an orbital transfer eye protection blackboard which comprises a main body, the surface of one side of the main body is in an opening shape, a blackboard body is arranged on the side, corresponding to the opening, of the main body, the blackboard body comprises a fixed plate and a movable plate, the fixed plate is fixedly connected with the main body, a movable block is movably arranged in the main body, and the movable block is fixedly connected with the main body. The blackboard comprises a main body, a fixed plate and a movable plate are arranged on the surface of the main body, the movable plate is slidably connected with the main body through the movable block, a connecting rod connected with the movable plate is arranged on the surface of the movable block, a driving mechanism is arranged between the movable block and the main body, and blackboard films are attached to the surfaces of the fixed plate and the movable plate. A movable connecting rod is arranged on the surface of the movable block, so that when the movable plate is closed, after the movable block drives the movable plate to move, the movable plate can move to the same plane with the fixed plate under the action of the connecting rod to form a whole, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching equipment, in particular to a track-changing eye-protecting blackboard. Background Art

[0002] A blackboard does not specifically refer to a black board. In the traditional sense, it is a flat surface that can be written on repeatedly with chalk. The board is hard and is mostly used for teaching.

[0003] Blackboards are usually made of wood or frosted glass, and can be written on with chalk or other specific writing materials. They are mostly black, dark green, white or beige.

[0004] In order to facilitate use or adapt to multimedia equipment, existing teaching blackboards are mostly set to be movable. The blackboard is slidably connected to the wall through guide rails, pulleys and other devices. However, the movable board surface and the fixed board surface are usually located in two different planes, which is inconvenient to use. Therefore, a track-changing eye-protecting blackboard is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a track-changing eye-protection blackboard to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a track-changing eye-protection blackboard, comprising a main body, one side surface of the main body is in an open shape, and a blackboard is arranged on the side of the main body corresponding to the opening, the blackboard comprises a fixed plate and a movable plate, the fixed plate is fixedly connected to the main body, a movable block is movably arranged inside the main body, a connecting rod connected to the movable plate is arranged on the surface of the movable block, a driving mechanism is arranged between the movable block and the main body, and a blackboard film is attached to the surfaces of the fixed plate and the movable plate.

[0007] According to the above technical solution, the movable block is in the shape of a long strip, and the movable block is extended along the height direction of the main body. The upper and lower ends of the movable block are slidably connected to the inner surface of the main body. A strip groove is provided on the surface of one side of the movable block close to the movable plate. The number of the strip grooves is two, and the two strip grooves are respectively located at the upper and lower ends of the movable block, and the connecting rod is rotatably provided on the inner surface of the strip groove.

[0008] According to the above technical solution, there are two connecting rods in each strip groove, and the two connecting rods are arranged in parallel. One end of the connecting rod away from the strip groove is rotatably connected to a connecting piece, and the connecting piece is fixedly connected to the movable plate.

[0009] According to the above technical solution, a rotating groove extending in the same direction as the length direction of the movable block is provided inside the movable block, a transmission gear is rotatably provided on the inner surface of the rotating groove, the connecting rod is coaxially connected to the transmission gear, a groove is provided on the surface of the main body, and a fixed rack is fixedly connected to the inner surface of the main body, which is inserted into the groove and drives the transmission gear to rotate.

[0010] According to the above technical solution, the driving mechanism includes a transmission block fixedly connected to the surface of the movable block, a transmission sleeve is penetrated and movably provided on the end surface of the transmission block, an elastic element is provided between the transmission sleeve and the transmission block, and a transmission screw engaged with the transmission sleeve is rotatably provided inside the main body.

[0011] Compared with the prior art, the beneficial effect achieved by the utility model is as follows: the utility model is provided with a main body, a fixed plate and a movable plate are arranged on the surface of the main body, wherein the movable plate is slidably connected to the main body through a movable block, and a movable connecting rod is arranged on the surface of the movable block, so that when the movable plate is closed, the movable block drives the movable plate to move, and under the action of the connecting rod, the movable plate can be moved to the same plane as the fixed plate to form a whole, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model in a first state viewed from above;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a second state viewed from above;

[0015] Figure 3 It is a schematic diagram of the top cross-sectional structure of the utility model in the third state;

[0016] Figure 4 It is a schematic diagram of the structure of the movable block and the driving mechanism of the utility model;

[0017] In the figure: 1-main body, 2-fixed plate, 3-movable plate, 4-connecting rod, 5-movable block, 6-strip groove, 7-connecting piece, 8-rotating groove, 9-transmission gear, 10-groove, 11-fixed rack, 12-transmission block, 13-transmission sleeve, 14-transmission screw. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 The utility model provides a technical solution: a track-changing eye-protection blackboard, comprising a main body 1, one side of the main body 1 is open, so that the main body 1 is a frame structure, the main body 1 is fixed on the wall, and a blackboard is arranged on one side of the main body 1 corresponding to the opening, such as Figure 1 As shown, the blackboard includes a fixed plate 2 and a movable plate 3, the fixed plate 2 and the movable plate 3 are combined to form a whole, the fixed plate 2 is fixedly connected to the main body 1, a movable block 5 is movably arranged inside the main body 1, a connecting rod 4 connected to the movable plate 3 is arranged on the surface of the movable block 5, a driving mechanism is arranged between the movable block 5 and the main body 1, and the driving mechanism controls the movable block 5 to slide inside the main body 1, as shown in FIG. Figure 1 As shown, the movable block 5 is located at one end of the movable plate 3 away from the fixed plate 2. Under the action of the connecting rod 4, the movable plate 3 can move relative to the movable block 5, so that the movable plate 3 moves to a plane different from the fixed plate 2. Under the action of the driving mechanism, the movable block 5 drives the movable plate 3 to slide, so that the movable plate 3 is opened. The surfaces of the fixed plate 2 and the movable plate 3 are attached with a blackboard film. The blackboard film is fruit green as a whole, which is in line with the green teaching blackboard color recommended by UNESCO. The writing board surface is 180 degrees non-reflective and has a 4.85*4.85cm field grid, which is convenient for teachers to write on the blackboard;

[0020] Specifically, the movable block 5 is in the shape of an elongated strip, and the movable block 5 is extended along the height direction of the main body 1. The upper and lower ends of the movable block 5 are slidably connected to the inner surface of the main body 1. Specifically, rollers (not shown in the figure) can be rotatably arranged at the upper and lower ends of the movable block 5. The inner surface of the main body (1) is provided with a guide rail that cooperates with the rollers. Figure 4 As shown, a strip groove 6 is provided on one side surface of the movable block 5 close to the movable plate 3, the number of the strip grooves 6 is two, and the two strip grooves 6 are respectively located at the upper and lower ends of the movable block 5, the strip groove 6 is extended along the width direction of the movable block 5, and the connecting rod 4 is rotatably provided on the inner surface of the strip groove 6 to realize the movable connection between the movable plate 3 and the movable block 5;

[0021] Specifically, if Figure 4As shown, there are two connecting rods 4 in each strip groove 6, and the two connecting rods 4 are arranged in parallel. The end of the connecting rod 4 away from the strip groove 6 is rotatably connected with a connecting member 7, and the connecting member 7 is fixedly connected to the movable plate 3. The cross-section of the connecting member 7 is "L"-shaped, and a through hole is penetrated through the end face of the connecting member 7. The movable plate 3 can be fixed to the connecting member 7 by a fixing screw passing through the through hole.

[0022] Specifically, the movable block 5 is provided with a rotation groove 8 extending in the same direction as the length direction of the movable block 5. Figure 1 As shown, a transmission gear 9 is rotatably arranged on the inner surface of the rotating groove 8, and the transmission gear 9 is in a long strip shape, and the transmission gear 9 is extended in the same direction along the length direction of the movable block 5, and the connecting rod 4 is connected to the transmission gear 9 on the same axis, and a groove 10 is arranged on the surface of the main body 1, and a fixed rack 11 is fixedly connected to the inner surface of the main body 1, which is inserted into the groove 10 and drives the transmission gear 9 to rotate. Figure 1 As shown, this is the first state of the device, at which the fixed plate 2 and the movable plate 3 are in the same plane, and the fixed rack 11 is located in the groove 10, as shown in FIG. Figure 2 As shown, this is the second state of the device. At this time, the driving mechanism controls the movable block 5 to move. During the movement, the transmission gear 9 moves relative to the fixed rack 11, and the transmission gear 9 drives the corresponding connecting rod 4 to rotate. The connecting rod 4 drives the movable plate 3 to move, so that the movable plate 3 and the fixed plate 2 move to different planes, such as Figure 3 As shown, at this time, the movable block 5 continues to be driven by the driving mechanism, and the movable plate 3 is opened, which is the third state of the device;

[0023] Specifically, the driving mechanism includes a transmission block 12 fixedly connected to the surface of the movable block 5, such as Figure 4 As shown, a transmission sleeve 13 is movably provided through the end surface of the transmission block 12, and an elastic element is provided between the transmission sleeve 13 and the transmission block 12. The elastic element can be a spring sleeved on the outside of the transmission sleeve 13. Under the action of the elastic element, the transmission sleeve 13 is located at one end of the transmission block 12. A transmission screw 14 meshing with the transmission sleeve 13 is provided for rotation inside the main body 1. A driving motor for driving the transmission screw 14 to rotate is provided on the outer surface of the main body 1. The driving motor drives the transmission screw 14 to drive the movable block 5 to slide under the action of the threaded fit. Under the action of the elastic element, the transmission sleeve 13 will overcome the elastic element and move relative to the transmission block 12, so that a buffer can be generated when the movable plate 3 moves.

[0024] When the utility model is used, the fixed plate 2 and the movable plate 3 are in the same plane, and the fixed rack 11 is located in the groove 10. The movable block 5 is controlled by the driving mechanism to move. During the movement, the transmission gear 9 moves relative to the fixed rack 11, and the transmission gear 9 drives the corresponding connecting rod 4 to rotate, and the connecting rod 4 drives the movable plate 3 to move, so that the movable plate 3 and the fixed plate 2 move to different planes, and then the movable block 5 continues to be opened under the action of the driving mechanism.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A track-changing eye-protection blackboard, comprising a main body (1), characterized in that: One side surface of the main body (1) is in an open shape, and a blackboard is provided on the side of the main body (1) corresponding to the opening, the blackboard comprising a fixed plate (2) and a movable plate (3), the fixed plate (2) being fixedly connected to the main body (1), a movable block (5) being movably provided inside the main body (1), a connecting rod (4) connected to the movable plate (3) being provided on the surface of the movable block (5), a driving mechanism being provided between the movable block (5) and the main body (1), and a blackboard film being attached to the surfaces of the fixed plate (2) and the movable plate (3).

2. The track-changing eye-protection blackboard according to claim 1 is characterized in that: The movable block (5) is in the shape of an elongated strip and is arranged to extend in the height direction of the main body (1). The upper and lower ends of the movable block (5) are slidably connected to the inner surface of the main body (1). A strip groove (6) is arranged on the surface of one side of the movable block (5) close to the movable plate (3). The number of the strip grooves (6) is two, and the two strip grooves (6) are respectively located at the upper and lower ends of the movable block (5). The connecting rod (4) is rotatably arranged on the inner surface of the strip groove (6).

3. The track-changing eye-protection blackboard according to claim 2 is characterized in that: There are two connecting rods (4) in each strip groove (6), and the two connecting rods (4) are arranged in parallel. One end of the connecting rod (4) away from the strip groove (6) is rotatably connected to a connecting piece (7), and the connecting piece (7) is fixedly connected to the movable plate (3).

4. The track-changing eye-protection blackboard according to claim 3 is characterized in that: The movable block (5) is provided with a rotation groove (8) extending in the same direction as the length direction of the movable block (5), the inner surface of the rotation groove (8) is rotatably provided with a transmission gear (9), the connecting rod (4) is coaxially connected with the transmission gear (9), the surface of the main body (1) is provided with a groove (10), and the inner surface of the main body (1) is fixedly connected with a fixed rack (11) which is inserted into the groove (10) and drives the transmission gear (9) to rotate.

5. The track-changing eye-protection blackboard according to claim 4 is characterized in that: The driving mechanism comprises a transmission block (12) fixedly connected to the surface of the movable block (5); a transmission sleeve (13) is movably provided through the end surface of the transmission block (12); an elastic element is provided between the transmission sleeve (13) and the transmission block (12); and a transmission screw (14) meshing with the transmission sleeve (13) is rotatably provided inside the main body (1).

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