Contrast explaining board

Abstract

The utility model belongs to the technical field of infant knowledge teaching equipment, and particularly relates to a contrast explaining board which comprises a bottom board, a supporting board is fixedly installed at the top of the bottom board, a folding mechanism is arranged on the surface of the supporting board, two contrast boards are rotatably connected to the inner wall of the inner side of a connecting rod, and the two contrast boards are connected through a connecting rod. A rotating hole is formed in the inner side of the connecting rod; the folding mechanism comprises a placement groove, the placement groove is formed in the surface of the supporting plate, and an inner cavity of the placement groove is rotationally connected with a connecting rod; by arranging the folding mechanism, the contrast boards after explanation can be stored, the storage area of the contrast boards is reduced, the contrast boards make contact with one another, meanwhile, a connecting rod is rotated, the connecting rod is rotated by 90 degrees in the opposite direction, and therefore the contrast boards enter an inner cavity of a containing groove, storage of the contrast boards is completed, and folding storage of the contrast boards is achieved; and the storage space of the contrast plate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of children's knowledge teaching equipment, in particular to a comparison explanation board. Background Art

[0002] Teaching preschool knowledge in higher vocational schools is a systematic and multifaceted process, which aims to cultivate future professionals in the field of preschool education. In the process of explaining preschool knowledge, a comparative method will be used to facilitate students to understand the corresponding preschool knowledge. At this time, a comparative explanation board will be used.

[0003] The comparison explanation board usually consists of two display boards and a support rod, and the position is relatively fixed. After the explanation of knowledge to children is completed, the comparison explanation board needs to be stored. Since the display board and the support rod are fixedly connected, it is difficult to store the display board, which can easily cause damage to the display board. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, since the display board and the support rod are fixedly connected, it is difficult to store the display board, which easily leads to damage of the display board. The utility model proposes a comparison and explanation board.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a comparison and explanation board, comprising a bottom plate, a support plate fixedly mounted on the top of the bottom plate, and a folding mechanism provided on the surface of the support plate;

[0006] The folding mechanism includes a placement slot, which is opened on the surface of the support plate, and the inner cavity of the placement slot is rotatably connected to a connecting rod, and the inner wall of the inner side of the connecting rod is rotatably connected to a control plate, and the number of the control plates is two, and a rotation hole is opened on the inner side of the connecting rod, and a fixing rod is threadedly connected to the inner wall of the rotation hole, one end of the fixing rod passes through the inner cavity of the rotation hole, and a positioning plate is fixedly installed on one end of the fixing rod, one side of the positioning plate is in contact with the surfaces of the two control plates, and a limiting block is fixedly installed on the top of the support plate, and the inner side of the limiting block is in contact with the surface of the connecting rod.

[0007] Preferably, a docking hole is provided on one side of the limit block and the connecting rod, and an inserting rod is slidably connected to the inner cavity of the docking hole.

[0008] Preferably, a pull rope is fixedly installed on one end of the insertion rod, and one end of the pull rope is fixedly connected to one side of the limit block.

[0009] Preferably, the inner wall of the support plate is rotatably connected to a fixing plate, the inner wall of the fixing plate is threadedly connected to a positioning rod, and the surface of the positioning rod is threadedly connected to the inner wall of the support plate.

[0010] Preferably, rotating blocks are fixedly mounted on both sides of the support plate, and the inner walls of the rotating blocks are rotatably connected to a placement plate.

[0011] Preferably, a damping shaft is provided on the inner wall of the rotating block, and the inner wall of the rotating block is rotatably connected to the surface of the placement plate via the damping shaft.

[0012] Preferably, a friction pad is fixedly mounted on the bottom of the base plate, and the friction pad is made of rubber.

[0013] The utility model is beneficial in that:

[0014] The utility model is provided with a folding mechanism, which can store the control board after the explanation is completed, reduce the storage area of ​​the control board, make the control boards contact each other, and at the same time rotate the connecting rod to rotate the connecting rod 90 degrees in the opposite direction, so that the control board enters the inner cavity of the placement groove, completing the storage of the control board, thereby realizing the folding storage of the control board and reducing the storage space of the control board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the rotating hole, the fixing rod and the positioning plate of the utility model;

[0018] Figure 3 This is a structural diagram of the fixing plate and the positioning rod of the utility model;

[0019] Figure 4 This is a structural diagram of the insertion rod, docking hole and pull rope of the utility model.

[0020] In the figure: 1. Base plate; 2. Support plate; 3. Folding mechanism; 301. Placement slot; 302. Connecting rod; 303. Control plate; 304. Rotation hole; 305. Fixing rod; 306. Positioning plate; 307. Limit block; 4. Docking hole; 5. Insertion rod; 6. Pull rope; 7. Fixing plate; 8. Positioning rod; 9. Rotation block; 10. Placement plate; 11. Damping shaft; 12. Friction pad. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The following is combined with Figure 1-4 To further explain this application,

[0023] The embodiment of the present application discloses a comparative explanation board. Figure 1 、 Figure 2 and Figure 4 A comparison and explanation board includes a base plate 1, a support plate 2 is fixedly installed on the top of the base plate 1, and a folding mechanism 3 is provided on the surface of the support plate 2;

[0024] The folding mechanism 3 includes a placement slot 301, which is provided on the surface of the support plate 2. The inner cavity of the placement slot 301 is rotatably connected to a connecting rod 302, and the inner wall of the inner side of the connecting rod 302 is rotatably connected to a control plate 303. There are two control plates 303. A rotation hole 304 is provided on the inner side of the connecting rod 302, and a fixing rod 305 is threadedly connected to the inner wall of the rotating hole 304. One end of the fixing rod 305 passes through the inner cavity of the rotating hole 304, and a positioning plate 306 is fixedly installed on one end of the fixing rod 305. One side of the positioning plate 306 contacts the surfaces of the two control plates 303. A limit block 307 is fixedly installed on the top of the support plate 2, and the inner side of the limit block 307 contacts the surface of the connecting rod 302.

[0025] Reference Figure 4 , a docking hole 4 is opened on one side of the limit block 307 and the connecting rod 302, and the inner cavity of the docking hole 4 is slidably connected with the insertion rod 5. Through the sliding connection between the docking hole 4 and the insertion rod 5, when the connecting rod 302 contacts the inner side of the limit block 307, the docking hole 4 of the connecting rod 302 and the docking hole 4 of the limit block 307 will coincide with each other, and the position of the connecting rod 302 is fixed by inserting the insertion rod 5;

[0026] Reference Figure 4 , a pull rope 6 is fixedly installed at one end of the insertion rod 5, and one end of the pull rope 6 is fixedly connected to one side of the limit block 307. By setting the pull rope 6, the insertion rod 5 can be connected to the limit block 307 to avoid the loss of the insertion rod 5;

[0027] Reference Figure 3The inner wall of the support plate 2 is rotatably connected to the fixing plate 7, and the inner wall of the fixing plate 7 is threadedly connected to the positioning rod 8. The surface of the positioning rod 8 is threadedly connected to the inner wall of the support plate 2. By setting the fixing plate 7 and the positioning rod 8, when the control plate 303 enters the inner cavity of the placement groove 301, the position of the fixing plate 7 can be fixed by the threaded connection between the positioning rod 8 and the support plate 2, thereby limiting the rotation angle of the control plate 303 and preventing the control plate 303 from shaking in the inner cavity of the placement groove 301;

[0028] Reference Figure 1 , both sides of the support plate 2 are fixedly installed with a rotating block 9, and the inner wall of the rotating block 9 is rotatably connected to the placement plate 10. By setting the rotating block 9 and the placement plate 10, the teacher can place temporary tools in the inner cavity of the placement plate 10. The support of the placement plate 10 on the tools can facilitate the teacher to take temporary tools and assist in explaining knowledge to the children;

[0029] Reference Figure 1 The inner wall of the rotating block 9 is provided with a damping shaft 11, and the inner wall of the rotating block 9 is rotatably connected to the surface of the placement plate 10 through the damping shaft 11. By providing the damping shaft 11, the position of the placement plate 10 after rotation can be fixed. When the placement plate 10 contacts one side of the support plate 2, the position of the placement plate 10 can be fixed, thereby realizing the folding and storage of the placement plate 10;

[0030] Reference Figure 1 A friction pad 12 is fixedly installed at the bottom of the base plate 1. The friction pad 12 is made of rubber. By providing the friction pad 12, the contact friction between the base plate 1 and the ground can be increased, and the stability of the base plate 1 when supporting the support plate 2 and the control plate 303 can be increased;

[0031] Working principle: In the process of explaining children's knowledge, a comparison method is used to describe the corresponding children's knowledge. At this time, the user rotates the connecting rod 302 to rotate the connecting rod 302 90 degrees, so that the surface of the connecting rod 302 contacts the inner side of the limit block 307, so that the connecting rod 302 remains in a vertical state, and at the same time rotates the fixing rod 305. Through the rotation of the fixing rod 305, part of the positioning plate 306 is driven to move out of the inner cavity of the rotating hole 304 and contact with the unfolded control plate 303, thereby limiting the rotation angle of the control plate 303, so that the control plate 303 is unfolded, and the pictures of the children's related knowledge are compared with the The pictures of the control materials are fixed on the surfaces of the two control plates 303 respectively, so that the relevant knowledge of the children and the control materials are displayed at the same time, thereby realizing the explanation of knowledge to the children. When the use is finished, the fixing rod 305 is rotated to drive the positioning plate 306 to re-enter the inner cavity of the rotating hole 304, and the control plates 303 are rotated at the same time so that the control plates 303 contact each other. At the same time, the connecting rod 302 is rotated so that the connecting rod 302 is rotated 90 degrees in the opposite direction, so that the control plates 303 enter the inner cavity of the placement groove 301, completing the storage of the control plates 303, thereby realizing the folding storage of the control plates 303 and reducing the storage space of the control plates 303.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A comparison and explanation board, characterized in that: It comprises a bottom plate (1), a support plate (2) is fixedly mounted on the top of the bottom plate (1), and a folding mechanism (3) is provided on the surface of the support plate (2); The folding mechanism (3) comprises a placement groove (301), the placement groove (301) is provided on the surface of the support plate (2), the inner cavity of the placement groove (301) is rotatably connected to a connecting rod (302), the inner wall of the inner side of the connecting rod (302) is rotatably connected to a control plate (303), the number of the control plates (303) is two, a rotation hole (304) is provided on the inner side of the connecting rod (302), the inner wall of the rotation hole (304) is threadedly connected to a fixing rod (305), one end of the fixing rod (305) passes through the inner cavity of the rotation hole (304), one end of the fixing rod (305) is fixedly installed with a positioning plate (306), one side of the positioning plate (306) contacts the surfaces of the two control plates (303), a limit block (307) is fixedly installed on the top of the support plate (2), and the inner side of the limit block (307) contacts the surface of the connecting rod (302).

2. A comparison explanation board according to claim 1, characterized in that: A docking hole (4) is provided on one side of the limit block (307) and the connecting rod (302), and an inserting rod (5) is slidably connected to the inner cavity of the docking hole (4).

3. A comparison explanation board according to claim 2, characterized in that: A pull rope (6) is fixedly mounted on one end of the insertion rod (5), and one end of the pull rope (6) is fixedly connected to one side of the limit block (307).

4. The comparison and explanation board according to claim 1, characterized in that: The inner wall of the support plate (2) is rotatably connected to a fixing plate (7), the inner wall of the fixing plate (7) is threadedly connected to a positioning rod (8), and the surface of the positioning rod (8) is threadedly connected to the inner wall of the support plate (2).

5. The comparison explanation board according to claim 1, characterized in that: Rotating blocks (9) are fixedly mounted on both sides of the support plate (2); the inner wall of the rotating block (9) is rotatably connected to a placement plate (10); and a placement groove (301) is provided on the top of the placement plate (10).

6. A comparison and explanation board according to claim 5, characterized in that: The inner wall of the rotating block (9) is provided with a damping rotating shaft (11), and the inner wall of the rotating block (9) is rotationally connected to the surface of the placement plate (10) via the damping rotating shaft (11).

7. The comparison and explanation board according to claim 1, characterized in that: A friction pad (12) is fixedly mounted on the bottom of the base plate (1), and the friction pad (12) is made of rubber.

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