Biological staining reaction teaching device

Abstract

The utility model discloses a biological staining reaction teaching device, and particularly relates to the technical field of staining reaction teaching, comprising a platform table, the upper end of the platform table is provided with a visual angle adjusting device capable of adjusting the visual angle height of a beaker and a test tube, and the visual angle adjusting device is used for conveniently adjusting the visual angle height of the beaker and the test tube; the visual angle adjusting device comprises three connecting frames, the three connecting frames are arranged at the upper end of the platform table, sliding grooves and limiting holes are formed in the inner sides of the connecting frames, and the sliding grooves communicate with the limiting holes; a universal bracket device capable of limiting and mounting the beaker and the test tube is arranged at the upper end of the visual angle adjusting device and is used for supporting the beaker and the test tube so that the beaker and the test tube can be used together. By arranging the universal support device, supporting of beakers and test tubes is facilitated, use of redundant supports is reduced, by arranging the visual angle adjusting device, the visual angle height of the beakers and the test tubes can be conveniently adjusted, and the problem that students in the back row obscure observation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dyeing reaction teaching, and more specifically, to a high school biology dyeing reaction teaching device. Background Art

[0002] Biology is a compulsory course for high school science students. When teachers teach, dyeing reactions and other contents need to be explained in conjunction with experimental results to facilitate students' more intuitive understanding. For this purpose, a high school biology dyeing reaction teaching device is proposed.

[0003] Most of the existing high school biology staining reaction teaching devices place an alcohol lamp to heat the beaker to observe the staining reaction. However, since the beaker is placed on the podium, the observation angle is low, and the observation of students in the back row is blurry. In addition, when the existing high school biology staining reaction teaching device heats the beaker and test tube, it is necessary to select a support frame, which is troublesome to replace the beaker and test tube. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiment of the utility model provides a biological staining reaction teaching device, and the technical problems to be solved are: the low observation angle affects the observation of students in the back row and the problem of troublesome replacement of beakers and test tubes.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a biological dyeing reaction teaching device, including a podium table:

[0006] The upper end of the podium table is provided with a viewing angle adjustment device capable of adjusting the viewing angle height of the beaker and the test tube, which is used to conveniently adjust the viewing angle height of the beaker and the test tube;

[0007] The viewing angle adjustment device includes three connection frames, which are respectively arranged at the upper ends of the podium table, and the inner sides of the connection frames are provided with a slide groove and a limit hole, and the slide groove and the limit hole are connected;

[0008] A universal bracket device capable of limiting the installation of the beaker and the test tube is provided at the upper end of the viewing angle adjustment device, and is used to support the beaker and the test tube so that the beaker and the test tube can be used together.

[0009] In a preferred embodiment, a movable support rod is movably provided inside the connecting frame, and limiting connecting rods are fixedly provided on both sides of the lower end of the movable support rod. The limiting connecting rod is located inside the slide groove, and the size of the limiting connecting rod is adapted to the size of the limiting hole.

[0010] In a preferred embodiment, a hinge base is movably provided on the upper end of the movable support rod.

[0011] In a preferred embodiment, the universal bracket device includes a heat conduction platform, which is fixedly arranged on the upper end of the hinge base, a heating cavity is provided at the lower end of the heat conduction platform, and a beaker limiting groove is provided at the upper end of the heating cavity.

[0012] In a preferred embodiment, a test tube limiting groove is provided on the inner side of the heat conduction platform, and the test tube limiting groove is located between the heating cavity and the beaker limiting groove.

[0013] In a preferred embodiment, a heat-conducting protrusion is movably provided on the inner side of the test tube limiting groove, and a beaker is movably provided on the upper end of the test tube limiting groove.

[0014] In a preferred embodiment, a faucet is fixedly provided at the upper end of the podium table, a wash basin is provided on one side of the upper end of the podium table, the wash basin is located at the lower end of the faucet, a limiting groove is provided at the upper end of the podium table, a support block is movably provided inside the limiting groove, an alcohol lamp is movably provided on the upper end of the support block, and the alcohol lamp is located at the lower end of the universal bracket device.

[0015] The technical effects and advantages of the utility model are as follows: by providing a universal bracket device, beakers and test tubes can be used together, reducing the use of redundant brackets, and the beaker is placed through the beaker limiting groove opened at the upper end of the heat conduction table. When the test tube needs to be replaced, the heat conduction protrusion in the test tube limiting groove is taken out, and the test tube is inserted into the test tube limiting groove, thereby realizing the universal use of the beaker and the test tube, reducing the replacement of redundant brackets, and because the heat conduction protrusion can conduct heat, when the beaker is placed and heated by the alcohol lamp, the effect of heat conduction heating with the heat conduction table can be achieved; the utility model is provided with a viewing angle adjustment The device is conducive to conveniently adjusting the viewing angle height of the beaker and test tube to avoid the problem of blurred vision. Three hinge bases are arranged at the lower end of the heat conduction table, so that the three movable support rods can rotate around the hinge bases, and the limit connecting rods on both sides of the lower end of the movable support rods slide in the slide groove. When the visual height needs to be increased, the heat conduction table is pulled upward and the limit connecting rods are used to slide in the slide groove. When the height adjustment is completed, the heat conduction table is released and the limit connecting rods are slid into the limit holes, thus forming a triangular bracket to support the heat conduction table, thereby achieving the effect of facilitating the adjustment of the display height as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is an exploded view of the utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the universal bracket device of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the viewing angle adjustment device of the present utility model.

[0021] The accompanying drawings are marked as follows: 1. podium table; 2. universal bracket device; 3. viewing angle adjustment device; 4. faucet; 5. wash basin; 6. limit groove; 7. support block; 8. alcohol lamp; 9. beaker; 21. heat transfer table; 22. heating chamber; 23. heat transfer protrusion; 24. beaker limit groove; 25. test tube limit groove; 31. connecting frame; 32. slide groove; 33. limit hole; 34. movable support rod; 35. limit connecting rod; 36. hinge base. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1 and 2 As shown, the utility model provides a high school biology staining reaction teaching device, including a podium table 1: a faucet 4 is fixedly arranged on the upper end of the podium table 1, a wash basin 5 is provided on one side of the upper end of the podium table 1, the wash basin 5 is located at the lower end of the faucet 4, a limiting groove 6 is provided on the upper end of the podium table 1, a support block 7 is movably provided inside the limiting groove 6, an alcohol lamp 8 is movably provided on the upper end of the support block 7, and the alcohol lamp 8 is located at the lower end of the universal bracket device 2.

[0024] In order to reduce the use of redundant brackets, a universal bracket device 2 capable of limiting the installation of beakers and test tubes is provided at the upper end of the viewing angle adjustment device 3, which is used to support the beaker and the test tube so that the beaker and the test tube can be used together;

[0025] like Figure 3As shown, the universal bracket device 2 includes a heat conduction platform 21, which is fixedly arranged at the upper end of the hinge base 36, a heating chamber 22 is provided at the lower end of the heat conduction platform 21, a beaker limiting groove 24 is provided at the upper end of the heating chamber 22, a test tube limiting groove 25 is provided inside the heat conduction platform 21, the test tube limiting groove 25 is located between the heating chamber 22 and the beaker limiting groove 24, a heat conduction protrusion 23 is movably provided inside the test tube limiting groove 25, and a heat conduction protrusion 23 is movably provided at the upper end of the test tube limiting groove 25 There is a beaker 9, which is placed in a beaker limiting groove 24 provided at the upper end of a heat conducting platform 21. When a test tube needs to be replaced, the heat conducting protrusion 23 in the test tube limiting groove 25 is taken out, and the test tube is inserted into the test tube limiting groove 25, thereby realizing the universal use of the beaker 9 and the test tube, and reducing the replacement of redundant brackets. Because the heat conducting protrusion 23 can conduct heat, when the beaker 9 is placed and heated by an alcohol lamp, the heat conducting heating effect together with the heat conducting platform 21 can be achieved.

[0026] Further, in order to conveniently adjust the viewing angle height of the beaker and test tube, a viewing angle adjustment device 3 capable of adjusting the viewing angle height of the beaker and test tube is provided at the upper end of the podium table 1, which is used to conveniently adjust the viewing angle height of the beaker and test tube;

[0027] like Figure 4 As shown, the viewing angle adjustment device 3 includes three connecting frames 31, which are respectively arranged at the upper end of the podium table 1. A slide groove 32 and a limit hole 33 are opened on the inner side of the connecting frame 31. The slide groove 32 and the limit hole 33 are connected. A movable support rod 34 is movably arranged on the inner side of the connecting frame 31. Limit connecting rods 35 are fixedly arranged on both sides of the lower end of the movable support rod 34. The limit connecting rod 35 is located on the inner side of the slide groove 32. The size of the limit connecting rod 35 is adapted to the size of the limit hole 33. A hinge base 36 is movably arranged on the upper end of the movable support rod 34. Three hinge bases 36 are provided at the lower end of 21, so that the three movable support rods 34 can rotate around the hinge bases 36, and the limiting connecting rods 35 on both sides of the lower end of the movable support rods 34 slide in the slide grooves 32. When the visual height needs to be increased, the heat conducting platform 21 is pulled upward and the limiting connecting rods 35 are used to slide in the slide grooves 32. When the height adjustment is completed, the heat conducting platform 21 is released and the limiting connecting rods 35 are slid into the limiting holes 33, thereby forming a triangular bracket to support the heat conducting platform 21, thereby achieving the effect of facilitating the adjustment of the display height as a whole.

[0028] When the utility model is in use, the visual height is adjusted through the viewing angle adjustment device 3. After the adjustment is completed, the beaker 9 or the test tube is placed on the universal bracket device 2, and then the support block 7 is placed in the limit groove 6, and the alcohol lamp 8 is placed on the support block 7. The alcohol lamp 8 is ignited, so that the beaker 9 or the test tube can be heated. After the reaction biological reaction teaching is completed, the beaker 9 and the test tube are placed in the wash basin 5 and cleaned through the faucet 4 to prepare for the next use.

[0029] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A biological dyeing reaction teaching device, comprising a podium table (1), characterized in that: The upper end of the podium table (1) is provided with a viewing angle adjustment device (3) capable of adjusting the viewing angle height of the beaker and the test tube, and is used to conveniently adjust the viewing angle height of the beaker and the test tube; The viewing angle adjustment device (3) comprises three connection frames (31), the three connection frames (31) are respectively arranged at the upper end of the podium table (1), a slide groove (32) and a limit hole (33) are provided on the inner side of the connection frame (31), and the slide groove (32) and the limit hole (33) are connected; The upper end of the viewing angle adjustment device (3) is provided with a universal support device (2) capable of limiting the installation of the beaker and the test tube, and is used to support the beaker and the test tube so that the beaker and the test tube can be used together.

2. A biological dyeing reaction teaching device according to claim 1, characterized in that: A movable support rod (34) is movably provided inside the connection frame (31), and position-limiting connecting rods (35) are fixedly provided on both sides of the lower end of the movable support rod (34), respectively. The position-limiting connecting rod (35) is located inside the slide groove (32), and the size of the position-limiting connecting rod (35) matches the size of the position-limiting hole (33).

3. A biological dyeing reaction teaching device according to claim 2, characterized in that: A hinge base (36) is movably provided at the upper end of the movable support rod (34).

4. A biological dyeing reaction teaching device according to claim 3, characterized in that: The universal support device (2) comprises a heat conducting platform (21), the heat conducting platform (21) being fixedly arranged on the upper end of the hinge base (36), a heating cavity (22) being provided at the lower end of the heat conducting platform (21), and a beaker limiting groove (24) being provided at the upper end of the heating cavity (22).

5. A biological dyeing reaction teaching device according to claim 4, characterized in that: A test tube limiting groove (25) is provided on the inner side of the heat conducting platform (21), and the test tube limiting groove (25) is located between the heating chamber (22) and the beaker limiting groove (24).

6. A biological dyeing reaction teaching device according to claim 5, characterized in that: A heat-conducting protrusion (23) is movably provided inside the test tube limiting groove (25), and a beaker (9) is movably provided at the upper end of the test tube limiting groove (25).

7. A biological dyeing reaction teaching device according to claim 1, characterized in that: A faucet (4) is fixedly provided at the upper end of the podium table (1); a wash basin (5) is provided on one side of the upper end of the podium table (1); the wash basin (5) is located at the lower end of the faucet (4); a limit groove (6) is provided at the upper end of the podium table (1); a support block (7) is movably provided inside the limit groove (6); an alcohol lamp (8) is movably provided at the upper end of the support block (7); and the alcohol lamp (8) is located at the lower end of the universal bracket device (2).

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