Portable teaching aid box

Abstract

The utility model relates to a portable teaching aid box, which comprises a box body, a box cover, a drawing placing plate, a mounting bracket, a fixed placing plate, a test tube placing rack and a beaker placing rack, the box cover is rotatably arranged on the upper side of the box body, the mounting bracket is fixedly arranged in the box body, the drawing placing plate is arranged between the mounting bracket and the box body through a sliding rail, and the fixed placing plate is arranged on the box body. The fixed placement plate is fixedly mounted on the upper side of the mounting bracket, and through the test tube placement rack and the beaker placement rack, test tubes and beakers can be placed in the test tube placement rack and the beaker placement rack when the test tubes and the beakers are moved, so that the test tubes can be stably clamped by the test tube placement rack, and the beakers can be stably clamped by the beaker placement rack; therefore, the problems that when an existing teaching aid box moves, test tubes and beakers cannot be stably clamped, the test tubes and the beakers are likely to collide with the peripheral sides of the clamping grooves, and the test tubes and the beakers are likely to collide with the box body to cause damage due to separation from the clamping grooves are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tool boxes, in particular to a portable teaching tool box. Background Art

[0002] When teaching chemistry, it is usually necessary to use various teaching aids to conduct reaction experiments in order to explain the chemistry course in detail. Existing chemical experiment teaching aids are usually only placed on pallets for transportation. This placement method is not safe and is easily damaged during transportation to the classroom.

[0003] After searching, the Chinese patent with announcement number: CN218483942U discloses a portable teaching aid box, which belongs to the technical field of teaching aid boxes, including a teaching aid box body, and movable wheels are fixedly installed at both ends of the bottom edge of the teaching aid box body near the front surface. In the utility model, such a portable teaching aid box can drive the experimental teaching aids to move relatively lightly through the telescopic pull rod and the movable wheels, making the movement more convenient, and the experimental teaching aids are all placed in the card slot of the storage tray to prevent damage caused by mutual collision during movement. The stepper motor can drive the teaching aid placement frame so that the experimental teaching aids placed inside can be taken out, and the experimental tray on the top can also be adjusted in this way, so that when the teaching aid box is placed on the desktop, the height can be adjusted and the experiment can be carried out on the top of the experimental tray, so that the students under the podium can watch the experimental process more clearly, improving the teaching efficiency.

[0004] When this patent is actually used, there are the following defects:

[0005] In this patent, the experimental teaching aids are all placed in the slots of the storage tray to prevent damage caused by collision when moving. However, the existing test tubes and beakers are of different sizes. When the test tubes and beakers are placed in the slots of the storage tray, the device cannot fix the test tubes and beakers. As a result, when moving, the test tubes and beakers are prone to collision with the sides of the slots, or the test tubes and beakers are separated from the slots and collide with the box body, causing damage. Utility Model Content

[0006] In view of the existing patents, experimental teaching aids are all placed in the card slots of the storage tray to prevent damage caused by collision when moving. However, the existing chemical experimental teaching aids are of different sizes. When the chemical experimental teaching aids are placed in the card slots of the storage tray, the device cannot fix the chemical experimental teaching aids. Therefore, when moving, the chemical experimental teaching aids are prone to collision with the sides of the card slots, and the chemical experimental teaching aids are separated from the card slots and collide with the box body to cause damage. The utility model provides a portable teaching aid box.

[0007] The technical solution adopted by the utility model is: a portable teaching aid box, comprising a box body, a box cover, a pull-out placement plate, a mounting bracket, a fixed placement plate, a test tube placement rack and a beaker placement rack, the box cover is rotatably mounted on the upper side of the box body, the mounting bracket is fixedly mounted in the box body, the pull-out placement plate is mounted between the mounting bracket and the box body through a slide rail, the fixed placement plate is fixedly mounted on the upper side of the mounting bracket, the seven test tube placement racks and the eight beaker placement racks are all arranged on the upper side of the fixed placement plate, and the fixed placement plate is located between the box cover and the pull-out placement plate.

[0008] By setting up the test tube rack and the beaker rack, the test tube and the beaker can be placed in the test tube rack and the beaker rack when moving the test tube and the beaker, so that the test tube rack can stably clamp the test tube, and the beaker rack can stably clamp the beaker.

[0009] Furthermore, the beaker placement rack comprises a placement frame, a partition, a placement table, a fixing plate, a connecting rod, an elastic telescopic rod and a rubber clamping block.

[0010] Furthermore, the partition is fixedly installed between the inner walls of the placing frame, the placing platform is elastically installed between the inner walls of the partition, the placing platform is located at the center of the partition, the fixed plate is fixedly installed between the inner walls of the placing frame, the fixed plate is located on one side of the placing platform, the two connecting rods are respectively slidably installed on both sides of the two fixed plates, and card slots are opened on both sides of the placing platform, the two card slots correspond to one end of the two connecting rods, the two elastic telescopic rods are respectively fixedly installed on both sides of the placing frame and between the two connecting rods, and the two rubber clamping blocks are respectively fixedly installed on the other end of the connecting rod.

[0011] Beakers of different sizes can be clamped by means of the arranged elastic telescopic rod and the rubber clamping block.

[0012] Furthermore, the test tube placement rack includes a fixing column, a rubber extrusion block, a protrusion, a tapered rod, a connecting column, a rubber pad, a limiting rod and a fixing rack.

[0013] Furthermore, the fixing column is fixedly installed between the inner walls of the fixing frame, four sliding grooves are opened on the circumference of the fixing frame, the four rubber extrusion blocks are respectively slidably installed in the four sliding grooves, the four protrusions are respectively fixedly installed on one side of the four rubber extrusion blocks, the conical rod is fixedly installed at one end of the connecting column, the rubber pad is fixedly installed at the other end of the connecting column, the connecting column is elastically installed between the inner walls of the fixing column, the conical rod corresponds to the four protrusions, and the limit rod is rotatably installed on the upper side of the fixing frame.

[0014] The rubber extrusion block, bumps and tapered rods can stably place beakers of different sizes in the fixed frame.

[0015] Furthermore, two glass rod placement grooves, a measuring cylinder placement groove and a chemical material placement groove are respectively arranged on the upper side of the pull-out placement plate, two sliding baffles are slidably installed between the inner walls of the chemical material placement grooves, and a handle is fixedly installed on one side of the pull-out placement plate.

[0016] By providing the sliding baffle and the chemical material placement groove, chemical material storage devices of different sizes can be stably placed in the chemical material placement groove.

[0017] Furthermore, four universal wheels are fixedly installed on the lower side of the box body, two handles are fixedly installed on both sides of the box body, a fixing buckle is provided between the box body and the box cover, and a telescopic pull rod is fixedly installed on one side of the box body.

[0018] The telescopic pull rod and universal wheels can facilitate users to move the device.

[0019] The beneficial effects of the utility model are as follows: compared with the prior art, in the utility model;

[0020] By setting up the test tube placement rack and the beaker placement rack, the test tube and the beaker can be placed in the test tube placement rack and the beaker placement rack when moving the test tube and the beaker, so that the test tube placement rack can stably clamp the test tube and the beaker placement rack can stably clamp the beaker, thereby effectively avoiding the problem that the existing teaching aid box cannot stably clamp the test tube and the beaker when moving, and the test tube and the beaker are prone to collision with the side of the card slot, and are separated from the card slot and the box body to cause damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the teaching aid box of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the pull-out placement plate and the fixed placement plate of the utility model;

[0023] Figure 3 This is a structural schematic diagram of a beaker placement rack of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a test tube placement rack of the utility model.

[0025] The markings in the figure are: 1. Box body; 2. Universal wheel; 3. Handle; 4. Telescopic pull rod; 5. Box cover; 6. Fixed buckle; 7. Pull-out placement plate; 8. Handle; 9. Mounting bracket; 10. Fixed placement plate; 11. Chemical material placement slot; 12. Glass rod placement slot; 13. Measuring cylinder placement slot; 14. Sliding baffle; 16. Test tube placement rack; 17. Beaker placement rack; 18. Partition; 19. Placement table; 20. Slot; 21. Fixed plate; 24. Connecting rod; 25. Elastic telescopic rod; 26. Rubber clamping block; 27. Placement frame; 28. Fixed column; 29. ​​Rubber extrusion block; 30. Bump; 31. Conical rod; 32. Connecting column; 33. Rubber pad; 34. Limit rod; 36. Fixed frame. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following is combined with Figure 1-4 The utility model is further described.

[0029] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a portable teaching aid box.

[0030] The specific technical scheme includes a box body 1, a box cover 5, a pull-out placement plate 7, a mounting bracket 9, a fixed placement plate 10, a test tube placement rack 16 and a beaker placement rack 17. The box cover 5 is rotatably installed on the upper side of the box body 1, the mounting bracket 9 is fixedly installed in the box body 1, the pull-out placement plate 7 is installed between the mounting bracket 9 and the box body 1 through a slide rail, the fixed placement plate 10 is fixedly installed on the upper side of the mounting bracket 9, seven test tube placement racks 16 and eight beaker placement racks 17 are all arranged on the upper side of the fixed placement plate 10, and the fixed placement plate 10 is located between the box cover 5 and the pull-out placement plate 7.

[0031] Reference Figure 3The beaker placement rack 17 of this embodiment includes a placement frame 27, a partition 18, a placement platform 19, a fixed plate 21, a connecting rod 24, an elastic telescopic rod 25 and a rubber clamping block 26. The partition 18 is fixedly installed between the inner walls of the placement frame 27, the placement platform 19 is elastically installed between the inner walls of the partition 18, the placement platform 19 is located at the center of the partition 18, the fixed plate 21 is fixedly installed between the inner walls of the placement frame 27, the fixed plate 21 is located on one side of the placement platform 19, the two connecting rods 24 are respectively slidably installed on both sides of the two fixed plates 21, and the two sides of the placement platform 19 are provided with card grooves 20, and the two card grooves 20 correspond to one end of the two connecting rods 24, the two elastic telescopic rods 25 are respectively fixedly installed on both sides of the placement frame 27 and between the two connecting rods 24, and the two rubber clamping blocks 26 are respectively fixedly installed on the other ends of the connecting rods 24. By setting the elastic telescopic rod 25 and the rubber clamping block 26, the beaker can be placed in the placement frame 27 and placed on the placement table 19, and then the beaker is pressed down to drive the placement table 19 to move downward. Then, when the slot 20 on one side of the placement table 19 is aligned with the connecting rod 24, the connecting rod 24 is pulled to move by the elastic force of the elastic telescopic rod 25, and the movement of the connecting rod 24 drives the rubber clamping block 26 to move to clamp the beaker. When clamping beakers of different sizes, the rubber clamping block 26 can make one end of the connecting rod 24 inserted into the slot 20 at different depths after contacting the beaker, thereby clamping beakers of different sizes.

[0032] Reference Figure 4 The test tube placement rack 16 of this embodiment includes a fixed column 28, a rubber extrusion block 29, a protrusion 30, a tapered rod 31, a connecting column 32, a rubber pad 33, a limiting rod 34 and a fixing frame 36. The fixed column 28 is fixedly installed between the inner walls of the fixing frame 36. Four sliding grooves are opened on the circumference of the fixing frame 36. Four rubber extrusion blocks 29 are respectively slidably installed in the four sliding grooves. Four protrusions 30 are respectively fixedly installed on one side of the four rubber extrusion blocks 29. The tapered rod 31 is fixedly installed at one end of the connecting column 32. The rubber pad 33 is fixedly installed at the other end of the connecting column 32. The connecting column 32 is elastically installed between the inner walls of the fixed column 28. The tapered rod 31 corresponds to the four protrusions 30. The limiting rod 34 is rotatably installed on the upper side of the fixing frame 36.

[0033] By means of the rubber squeezing block 29, the protrusion 30 and the tapered rod 31, the test tube can be inserted into the fixing frame 36 so that the fixing column 28 is inserted into the test tube, and then the bottom of the test tube contacts the rubber pad 33, and drives the rubber pad 33 and the connecting column 32 to move downward, and the connecting column 32 moves downward to drive the tapered rod 31 to move, and the tapered rod 31 moves and is inserted between the four protrusions 30, so that the protrusion 30 drives the rubber squeezing block 29 to move and squeeze the inner wall of the test tube, so that the test tube is stably placed in the fixing frame 36. When encountering test tubes of different sizes, the rubber squeezing block 29 can be extended to different lengths to clamp the test tube according to the insertion depth of the tapered rod 31, so that beakers of different sizes can be stably placed in the fixing frame 36.

[0034] Reference Figure 1-2 In this embodiment, two glass rod placement grooves 12, a measuring cylinder placement groove 13 and a chemical material placement groove 11 are respectively provided on the upper side of the pull-out placement plate 7, two sliding baffles 14 are slidably installed between the inner walls of the chemical material placement groove 11, a handle 8 is fixedly installed on one side of the pull-out placement plate 7, four universal wheels 2 are fixedly installed on the lower side of the box body 1, two handles 3 are fixedly installed on both sides of the box body 1, a fixed buckle 6 is provided between the box body 1 and the box cover 5, and a telescopic pull rod 4 is fixedly installed on one side of the box body 1.

[0035] By means of the sliding baffle 14 and the chemical material placement groove 11, the sliding baffle 14 can be moved to fit chemical material storage devices of different sizes and limit them, so that chemical material storage devices of different sizes can be stably placed in the chemical material placement groove 11. By means of the telescopic rod 4 and the universal wheel 2, the box body 1 can be pulled by extending the telescopic rod 4 and then pulling the telescopic rod 4 and the universal wheel 2, so that it is convenient for users to move the device.

[0036] In order for those skilled in the art to fully understand the technical solution, this application makes the following overall summary:

[0037] When in use, the test tube and the beaker are placed in the test tube rack 16 and the beaker rack 17, so that the test tube rack 16 can stably clamp the test tube, and the beaker rack 17 can stably clamp the beaker. Then, the chemical material storage device, the glass rod, and the measuring cylinder are placed in the pull-out placement plate 7, and the chemical material storage device is fixed by moving the sliding baffle 14. Then, the box cover 5 is tightly closed with the box body 1 through the fixing buckle 6, and then the telescopic pull rod 4 is extended, and then the telescopic pull rod 4 and the universal wheel 2 are pulled to drive the box body 1 to move, so that the box body 1 can be stably moved.

[0038] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0039] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable teaching aid box, characterized in that: The invention comprises a box body (1), a box cover (5), a drawer plate (7), a mounting bracket (9), a fixed mounting plate (10), a test tube mounting rack (16) and a beaker mounting rack (17); the box cover (5) is rotatably mounted on the upper side of the box body (1); the mounting bracket (9) is fixedly mounted in the box body (1); the drawer plate (7) is mounted between the mounting bracket (9) and the box body (1) via a slide rail; the fixed mounting plate (10) is fixedly mounted on the upper side of the mounting bracket (9); the seven test tube mounting racks (16) and the eight beaker mounting racks (17) are all arranged on the upper side of the fixed mounting plate (10); and the fixed mounting plate (10) is located between the box cover (5) and the drawer plate (7).

2. A portable teaching aid box according to claim 1, characterized in that: The beaker placement rack (17) comprises a placement frame (27), a partition (18), a placement platform (19), a fixing plate (21), a connecting rod (24), an elastic telescopic rod (25) and a rubber clamping block (26).

3. A portable teaching aid box according to claim 2, characterized in that: The partition (18) is fixedly installed between the inner walls of the placement frame (27), the placement platform (19) is elastically installed between the inner walls of the partition (18), the placement platform (19) is located at the center of the partition (18), the fixed plate (21) is fixedly installed between the inner walls of the placement frame (27), the fixed plate (21) is located on one side of the placement platform (19), the two connecting rods (24) are respectively slidably installed on both sides of the two fixed plates (21), both sides of the placement platform (19) are provided with card grooves (20), the two card grooves (20) correspond to one end of the two connecting rods (24), the two elastic telescopic rods (25) are respectively fixedly installed on both sides of the placement frame (27) and between the two connecting rods (24), and the two rubber clamping blocks (26) are respectively fixedly installed on the other end of the connecting rod (24).

4. A portable teaching aid box according to claim 1, characterized in that: The test tube placement rack (16) comprises a fixing column (28), a rubber extrusion block (29), a convex block (30), a tapered rod (31), a connecting column (32), a rubber pad (33), a limiting rod (34) and a fixing rack (36).

5. A portable teaching aid box according to claim 4, characterized in that: The fixing column (28) is fixedly mounted between the inner walls of the fixing frame (36); four sliding grooves are opened on the circumference of the fixing frame (36); the four rubber extrusion blocks (29) are respectively slidably mounted in the four sliding grooves; the four protrusions (30) are respectively fixedly mounted on one side of the four rubber extrusion blocks (29); the conical rod (31) is fixedly mounted on one end of the connecting column (32); the rubber pad (33) is fixedly mounted on the other end of the connecting column (32); the connecting column (32) is elastically mounted between the inner walls of the fixing column (28); the conical rod (31) corresponds to the four protrusions (30); and the limiting rod (34) is rotatably mounted on the upper side of the fixing frame (36).

6. A portable teaching aid box according to claim 1, characterized in that: Two glass rod placement grooves (12), a measuring cylinder placement groove (13) and a chemical material placement groove (11) are respectively provided on the upper side of the pull-out placement plate (7); two sliding baffles (14) are slidably installed between the inner walls of the chemical material placement groove (11); and a handle (8) is fixedly installed on one side of the pull-out placement plate (7).

7. A portable teaching aid box according to claim 1, characterized in that: Four universal wheels (2) are fixedly mounted on the lower side of the box body (1), two handles (3) are fixedly mounted on both sides of the box body (1), a fixing buckle (6) is provided between the box body (1) and the box cover (5), and a telescopic pull rod (4) is fixedly mounted on one side of the box body (1).

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