Specimen manufacturing device for primary school science teaching

Abstract

The utility model discloses a specimen making device for primary school science teaching, and relates to the technical field of specimen making devices, the specimen making device comprises an L-shaped bottom plate, an overturning groove and a side inverted L-shaped top plate, the top of the side inverted L-shaped top plate is provided with a pressing assembly extending to the lower part of the side inverted L-shaped top plate, and the pressing assembly is used for pressing a plant specimen; the pressing assembly comprises a pressing unit and a limiting unit; the pressing unit is used for pressing the multiple layers of plant specimens; and the limiting unit is used for limiting and locking the overturning of the side inverted L-shaped top plate. By arranging the L-shaped bottom plate, the side inverted L-shaped top plate and the pressing assembly, plant specimens can be pressed conveniently, when absorbent paper needs to be replaced, only the knob needs to be screwed to enable the pressing plate to relieve extrusion on the plant specimens, then the side inverted L-shaped top plate and the pressing assembly are turned over and opened integrally, operation is easy and convenient, and operation of pupils is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of specimen preparation devices, specifically a specimen preparation device for primary school science teaching. Background Technology

[0002] The goal of primary school science education is to enable students to master basic scientific knowledge, including fundamental knowledge in fields such as life science, physical science, and earth and space science; to cultivate students' scientific inquiry abilities, enabling them to raise questions, make hypotheses, design experiments, collect evidence, and draw conclusions; to stimulate students' interest and curiosity in science; to cultivate students' innovative awareness and practical abilities; and to foster a scientific attitude of seeking truth from facts.

[0003] Specimen making can cultivate primary school students' observation and practical abilities, stimulate their interest, and enhance their understanding of scientific knowledge. It is one of the regular teaching projects in primary school science teaching. The current process of making plant herbarium specimens in primary school science teaching is as follows: collection, sorting, pressing, changing paper, binding, and labeling. Among these, when pressing, primary school students usually use the weight of the book to press, which is prone to insufficient pressing force, resulting in failure. It also takes up the primary school students' textbooks. Based on this, a specimen making device for primary school science teaching is provided. Utility Model Content

[0004] The purpose of this invention is to provide a specimen preparation device for primary school science teaching in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a specimen preparation device for primary school science teaching, comprising an L-shaped base plate, a flipping groove, and a side-tilted L-shaped top plate. The flipping groove is opened at one end of the vertical part of the L-shaped base plate and completely extends to the other end of the vertical part. The side-tilted L-shaped top plate is rotatably connected to the inside of the flipping groove and extends to the top of the L-shaped base plate. A pressing component is provided on the top of the side-tilted L-shaped top plate, extending to the bottom of the side-tilted L-shaped top plate. The pressing component is used to press the plant specimen.

[0006] The pressing assembly includes a pressing unit and a limiting unit;

[0007] The compression unit is used to compress multi-layered plant specimens;

[0008] The limiting unit is used to limit and lock the flipping of the side-tilting L-shaped top plate.

[0009] As a further embodiment of this utility model: the clamping unit includes a pressure plate, a fixed round seat, a knob, a stud, and a limiting round block;

[0010] The fixed round seat is fixed to the middle of the top of the pressure plate, and the pressure plate is distributed below the side-inverted L-shaped top plate and fits against the end face of the output part of the L-shaped bottom plate;

[0011] The knob, stud, and limiting block are connected and fixed in sequence from top to bottom. The knob is distributed above the side-inverted L-shaped top plate. The stud is connected to the upper and lower ends of the side-inverted L-shaped top plate and the fixed round seat in sequence. The limiting block is rotatably connected to the inside of the fixed round seat.

[0012] Turning the knob moves the pressure plate up and down, and lowering the pressure plate is used to compress multi-layered plant specimens.

[0013] As a further improvement of this utility model: the limiting unit includes an n-type insert;

[0014] The n-shaped insert is fixed to one end of the top of the pressure plate. One vertical part of the n-shaped insert is attached to one end of the vertical part of the L-shaped base plate and passes through the upper and lower ends of the tilted L-shaped top plate. The other vertical part of the n-shaped insert is attached to the other end of the vertical part of the L-shaped base plate. The engagement between the n-shaped insert and the vertical part of the L-shaped base plate is used to achieve the flipping limit of the tilted L-shaped top plate.

[0015] As a further improvement of this utility model: the side-inverted L-shaped top plate is provided with a straight groove for the vertical part of the n-shaped insert to slide up and down, and the side-inverted L-shaped top plate is provided with a threaded hole that matches the stud.

[0016] As a further improvement of this utility model: the vertical height of the flipping groove is greater than the height of the vertical part of the side-inverted L-shaped top plate, and the height from the bottom of the vertical part of the side-inverted L-shaped top plate to the bottom of the inner wall of the flipping groove is greater than the thickness of the vertical part of the n-shaped insert.

[0017] As a further embodiment of this utility model: the outer wall dimension of the pressure plate matches the outer wall dimension of the transverse portion of the L-shaped base plate, and the outer wall dimension of the transverse portion of the pressure plate and the L-shaped base plate is larger than the outer wall dimension of the absorbent paper of the plant specimen.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] By setting up an L-shaped base plate, a side-tilting L-shaped top plate, and a pressing component, plant specimens can be easily pressed. When it is necessary to replace the absorbent paper, simply turn the knob to release the pressure plate from the plant specimen, and then flip the side-tilting L-shaped top plate and pressing component together to open it. The operation is simple and convenient, making it easy for primary school students to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2This is a structural schematic diagram of the side-tilting L-shaped top plate of this utility model in its flipped-open state;

[0022] Figure 3 This is a structural cross-sectional view of the side-tilted L-shaped top plate of this utility model in its closed state;

[0023] Figure 4 This is a cross-sectional exploded view of the present invention.

[0024] In the diagram: 1. L-shaped base plate; 2. Flip groove; 3. Side-tilting L-shaped top plate; 4. Straight groove opening; 5. Threaded hole; 6. Pressing assembly; 601. Pressure plate; 602. Fixed round seat; 603. N-shaped insert; 604. Knob; 605. Stud; 606. Limiting round block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 In this embodiment of the utility model, a specimen preparation device for primary school science teaching includes an L-shaped base plate 1, a flipping groove 2, and a side-tilted L-shaped top plate 3. The flipping groove 2 is opened at one end of the vertical part of the L-shaped base plate 1 and completely extends to the other end of the vertical part. The side-tilted L-shaped top plate 3 is rotatably connected to the inside of the flipping groove 2 and extends to the top of the L-shaped base plate 1. A pressing component 6 is provided on the top of the side-tilted L-shaped top plate 3 and extends to the bottom of the side-tilted L-shaped top plate 3. The pressing component 6 is used to press the plant specimen.

[0027] The pressing assembly 6 includes a pressing unit and a limiting unit. The pressing unit is used to press the multi-layer plant specimens, and the limiting unit is used to limit and lock the flipping of the side-tilted L-shaped top plate 3.

[0028] The clamping unit includes a pressure plate 601, a fixed round seat 602, a knob 604, a stud 605, and a limiting round block 606;

[0029] The fixed round seat 602 is fixed to the top center of the pressure plate 601. The pressure plate 601 is distributed below the side-inverted L-shaped top plate 3 and is in contact with the output end face of the L-shaped bottom plate 1.

[0030] The knob 604, stud 605, and limiting block 606 are connected and fixed in sequence from top to bottom. The knob 604 is located above the side-tilted L-shaped top plate 3. The stud 605 is connected to the upper and lower ends of the side-tilted L-shaped top plate 3 and the fixed round seat 602 in sequence. The limiting block 606 is rotatably connected to the inside of the fixed round seat 602.

[0031] The knob 604 is turned to move the pressure plate 601 up and down, and the pressure plate 601 is moved down to press the multi-layered plant specimens.

[0032] The limiting unit includes an n-type insert 603;

[0033] The n-shaped insert 603 is fixed to one end of the top of the pressure plate 601. One vertical part of the n-shaped insert 603 is attached to one end of the vertical part of the L-shaped base plate 1 and passes through the upper and lower ends of the tilted L-shaped top plate 3. The other vertical part of the n-shaped insert 603 is attached to the other end of the vertical part of the L-shaped base plate 1. The engagement between the n-shaped insert 603 and the vertical part of the L-shaped base plate 1 is used to achieve the flipping limit of the tilted L-shaped top plate 3.

[0034] The side-tilted L-shaped top plate 3 has a straight groove 4 for the vertical part of the n-shaped insert 603 to slide vertically and vertically, and the side-tilted L-shaped top plate 3 has a threaded hole 5 that matches the stud 605.

[0035] In this embodiment, the specimen preparation device is used as follows:

[0036] First, turn the knob 604 to drive the screw 605 to rotate, so that the screw 605 moves upward with the cooperation of the threaded hole 5. This causes the pressure plate 601 and the n-shaped insert 603 to move upward as a whole. When the bottom of the vertical part of the n-shaped insert 603 moves up to the flip groove 2 area, the flipping limit on the side-tilted L-shaped top plate 3 is released. At this time, the side-tilted L-shaped top plate 3 and the pressing assembly 6 are flipped together, thus removing the obstruction above the L-shaped bottom plate 1.

[0037] Next, a layer of absorbent paper can be laid on the upper surface of the horizontal part of the L-shaped base plate 1. Then, the collected plant specimens are placed on the absorbent paper. After arranging the plant specimens, another layer of absorbent paper is laid on top of the plant specimens. Then, another layer of plant specimens can be placed. This process is repeated to place multiple layers of plant specimens. (It should be noted that: a layer of plant specimens can also be pressed down. The top layer of the plant specimens after they are laid out is absorbent paper.)

[0038] Next, the tilted L-shaped top plate 3 and the pressing assembly 6 are flipped and reset as a whole. At this time, the horizontal part of the tilted L-shaped top plate 3, the pressing plate 601 and the horizontal part of the L-shaped bottom plate 1 are in a horizontal parallel state. Then, the knob 604 is turned in the opposite direction, so that the screw 605 moves down and pushes the pressing plate 601 and the n-shaped insert 603 to move down as a whole. (It should be noted that the limiting round block 603 rotates relative to the fixed round seat 602, while the pressing plate 601 is attached to the vertical end face of the L-shaped bottom plate, so that it can remain stable and not rotate.) Finally, the lower surface of the pressing plate 601 is tightly attached to the upper surface of the plant specimen after it has been laid, so as to realize the pressing operation of the plant specimen.

[0039] At the same time, the n-shaped insert 603 moves down so that its bottom end moves below the flip groove 2, that is, the n-shaped insert 603 is engaged with the vertical part of the L-shaped bottom plate 1. This can prevent the side-tilting L-shaped top plate 3 from flipping, thereby achieving the stability of the pressing state of the pressure plate 601.

[0040] When it is necessary to replace the absorbent paper, simply turn the knob 604 to release the pressure plate 601 from squeezing the plant specimen, and then flip the side-tilted L-shaped top plate 3 and the pressing component 6 to open them. The operation is simple and convenient, making it easy for primary school students to operate.

[0041] Please refer to this carefully. Figures 1-4 The vertical height of the flip groove 2 is greater than the vertical height of the side-tilted L-shaped top plate 3, and the height from the bottom of the vertical part of the side-tilted L-shaped top plate 3 to the bottom of the inner wall of the flip groove 2 is greater than the thickness of the vertical part of the n-shaped insert 603.

[0042] In this embodiment, it should be noted that the longitudinal width of the n-type insert 603 is smaller than the longitudinal width of the flip groove 2.

[0043] This allows the vertical part of the n-shaped insert 603 to be inserted through the flipping slot 2 when the side-tilting L-shaped top plate 3 is flipped open, ensuring that the side-tilting L-shaped top plate 3 flips smoothly.

[0044] Please refer to this carefully. Figures 1-4 The outer wall dimensions of the pressing plate 601 match the outer wall dimensions of the transverse portion of the L-shaped base plate 1, and the outer wall dimensions of the pressing plate 601 and the transverse portion of the L-shaped base plate 1 are larger than the outer wall dimensions of the absorbent paper of the plant specimen.

[0045] In this embodiment: This structure enables the complete compression of the plant specimen, ensuring that the absorbent paper is fully compressed and thus guaranteeing the successful preparation of the plant specimen.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A specimen making device for primary school science teaching, comprising an L-shaped base plate (1), a turnover groove (2) and a side-inverted L-shaped top plate (3), the turnover groove (2) is opened at one end of the vertical part of the L-shaped base plate (1) and completely penetrates to the other end of the vertical part, and the side-inverted L-shaped top plate (3) is rotationally connected to the inner side of the turnover groove (2) and extends above the L-shaped base plate (1), characterized in that, The top of the side-inverted L-shaped top plate (3) is provided with a pressing assembly (6) extending below the side-inverted L-shaped top plate (3), which is used for pressing operation on the plant specimen; The pressing assembly (6) comprises a pressing unit and a limiting unit; The pressing unit is used for pressing operation on the multi-layer plant specimen; The limiting unit is used for limiting and locking the overturning of the side-inverted L-shaped top plate (3).

2. The specimen making device for elementary science teaching according to claim 1, characterized in that, The pressing unit comprises a pressing plate (601), a fixed round seat (602), a knob (604), a stud (605) and a limiting round block (606); The fixed round seat (602) is fixed to the top middle part of the pressing plate (601), and the pressing plate (601) is distributed below the side-inverted L-shaped top plate (3) and is attached to the output end face of the L-shaped bottom plate (1); The knob (604), the stud (605) and the limiting round block (606) are sequentially connected and fixed from top to bottom, the knob (604) is distributed above the side-inverted L-shaped top plate (3), the stud (605) is sequentially connected to the upper and lower ends of the side-inverted L-shaped top plate (3) and the fixed round seat (602), and the limiting round block (606) is rotationally connected to the inner side of the fixed round seat (602); The knob (604) is twisted to realize the up-and-down movement of the pressing plate (601), and the multi-layer plant specimen is pressed by the downward movement of the pressing plate (601).

3. The specimen making device for elementary science teaching according to claim 2, characterized in that, The limiting unit comprises an n-shaped plug block (603); The n-shaped plug block (603) is fixed to one end of the top of the pressing plate (601), one vertical part of the n-shaped plug block (603) is attached to one end of the vertical part of the L-shaped bottom plate (1) and penetrates through the upper and lower ends of the side-inverted L-shaped top plate (3), and the other vertical part of the n-shaped plug block (603) is attached to the other end of the vertical part of the L-shaped bottom plate (1), and the overturning of the side-inverted L-shaped top plate (3) is limited by the clamping of the n-shaped plug block (603) and the vertical part of the L-shaped bottom plate (1).

4. The specimen making device for elementary science teaching according to claim 3, characterized in that, Straight slots (4) are formed in the side-inverted L-shaped top plate (3) for the vertical part of the n-shaped plug block (603) to slide up and down, and screw thread holes (5) are formed in the side-inverted L-shaped top plate (3) to match the studs (605).

5. The specimen making device for elementary science teaching according to claim 3, characterized in that, The vertical height of the overturning groove (2) is greater than the vertical height of the side-inverted L-shaped top plate (3), and the height from the bottom of the vertical part of the side-inverted L-shaped top plate (3) to the inner wall of the overturning groove (2) is greater than the thickness of the vertical part of the n-shaped plug block (603).

6. The specimen making device for elementary science teaching according to claim 2, characterized in that, The outer wall size of the pressing plate (601) matches the outer wall size of the horizontal part of the L-shaped bottom plate (1), and the outer wall size of the pressing plate (601) and the horizontal part of the L-shaped bottom plate (1) is greater than the outer wall size of the water-absorbing paper of the plant specimen.

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