Science popularization sandbox

Abstract

According to the science popularization sandbox, a box cavity of a transparent box body is divided into a first box cavity and a second box cavity by a longitudinal partition plate; the first box cavity is used for placing a first contrast, an observation table is arranged in the second box cavity, the top cavity is used for placing a second contrast, and a searchlight is arranged on the upper side surface of the observation table; the cavity wall of the second box cavity is provided with a magnifying lens for comparing the first comparison object with the second comparison object; and the box body is provided with a sounding opening at the top of the first box cavity. Sand grains and contrast objects are placed in different spaces, and the sensory concept of the particle size of a microminiature object is established through visual vision and touch. Sand grains with different particle sizes can be replaced by rotating the first box cavity, contrast objects with different sizes can be replaced by rotating the second box cavity, and the observation and comparison effects are enhanced by using the magnifying lens and light illumination; and the sand grains are pulled in by utilizing the movable second sub-box, so that the transverse and longitudinal comparison is facilitated, a good way is provided for cultivating the visual perception ability of teenagers to tiny objects, and the device has very high practicability and wide applicability.

Description

Technical Field

[0001] The invention relates to a popular science sandbox and belongs to the technical field of popular science tools. Background Art

[0002] With the development of science and technology and socio-economic development, as well as urbanization and urban expansion, most people (especially young people) have fewer and fewer opportunities to directly contact and touch nature. What they gain from books and classrooms is only conceptual knowledge. Even when playing in sand pits and beaches, they use modeling toys such as shovels, buckets, and plates to shape and build sand castles. They lack intuitive judgment on aspects such as roughness and particle size.

[0003] At present, no suitable device has been found to help teenagers provide sensory touch experience and cultivate life experience. This design scheme aims to solve the problem of the lack of intuitive touch of teenagers in the existing technology. Through a special sandbox, visitors can observe, touch and compare with familiar objects in life, establish the sensory concept of the particle size of micro-objects, and help to describe, metaphorically and compare things in a vivid way. At the same time, this scheme also takes into account the need for cleanliness of indoor exhibitions, and limits the removal of sand and soil during the touching process. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a science popularization sandbox.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A popular science sandbox, comprising a transparent box body, wherein a box cavity of the box body is divided into a first box cavity and a second box cavity by a longitudinal partition;

[0007] The first box cavity is used to place a first contrast object, and an observation platform is provided in the second box cavity. The observation platform is used to place a second contrast object, or the second contrast object and the first contrast object; a searchlight is provided on the upper side of the observation platform;

[0008] The cavity wall of the second box cavity is provided with a magnifying glass for comparing the first comparison object with the second comparison object;

[0009] The box body is provided with a probe port at the top of the first box cavity.

[0010] The first comparison object includes sand; the second comparison object includes at least one of salt, millet, rapeseed, corn flour, and hair.

[0011] The above-mentioned sounding port is provided with a soft brush for removing sand.

[0012] The first box cavity is an annular cylinder, and a shaft is arranged inside the ring; along the circumferential direction, the first box cavity is divided into a plurality of sub-boxes by a plurality of built-in leaf plates; the plurality of sub-boxes are used to place a plurality of first comparison objects with different particle sizes;

[0013] In the longitudinal direction, the sub-box includes a first sub-box in the upper part and a second sub-box in the lower part. A radial slide rail is provided on the contact surface between the first sub-box and the second sub-box.

[0014] In the circumferential direction, an annular groove is provided at the bottom of the second sub-box.

[0015] In the radial direction, a straight groove with its end facing the second cavity is provided on the bottom surface of the first cavity. The cross-section of the straight groove is rectangular. A screw rod is placed in the straight groove and is sleeved with a rectangular nut. The upper end of the nut is placed in the annular groove. The end of the screw rod is engaged with a shaft rod at the middle axis through bevel gears.

[0016] The screw rod driven by the shaft rod causes the nut to move along the straight groove, pushing the second sub-box to slide back and forth along the slide rail.

[0017] Furthermore, the contact surface between the first sub-box and the second sub-box is flush with the observation table. The bottom of the observation table is hollow, and the second sub-box can slide radially into the bottom of the observation table.

[0018] Still further, in the longitudinal direction, the second cavity includes a third sub-box in the upper part and a fourth sub-box in the lower part. The cross-section of the third sub-box is annular and is divided into several sub-cavities for placing second contrast objects of different particle sizes or diameters.

[0019] The fourth sub-box is hollow, and the second sub-box can slide radially into the fourth sub-box.

[0020] The beneficial effects of the present invention are as follows:

[0021] A popular science sand box of the present invention places sand grains and contrast objects in different spaces, and through intuitive vision and touch, establishes a sensory concept of the particle size of micro-small things. Different particle size sand grains are replaced by rotating and switching the first cavity, different sized contrast objects are replaced by rotating and switching the second cavity, and the observation and comparison effect is enhanced by using a magnifying glass and lighting; the movable second sub-box is used to pull in the sand grains, facilitating comparison in the horizontal and longitudinal directions.

[0022] The popular science sand box of the present invention forms an intuitive visual and tactile sense by comparing familiar and commonly contacted items in life and directly touching and feeling the size of the sand grains, cultivating the touching ability and the cognition of the size of micro-small things for teenagers and young children. Its structure is simple, easy to use, portable, beautiful, low in cost, small in occupied space, easy to exhibit, does not cause dust, and can mobilize multiple senses such as eyes and hands to experience the size of the sand grains, which is a very good way to cultivate teenagers' intuitive perception ability of micro-small things, and has strong practicability and wide applicability. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the popular science sand box of Embodiment 1.

[0024] Figure 2 It is a schematic structural diagram of the popular science sandbox of Example 2.

[0025] Figure 3 It is a top view of the schematic structural diagram of the popular science sandbox of Example 3.

[0026] Figure 4 It is a side view of the schematic structural diagram of the shaft rod and the screw rod 19.

[0027] Figure 5 It is a top view of the schematic structural diagram of the shaft rod and the screw rod 19.

[0028] The meanings of the marks in the drawings are as follows: 1. First box cavity, 2. Second box cavity, 3. Observation table, 4. Searchlight, 5. Magnifying glass, 6. Penetration port, 7. Soft brush, 8. Page board, 9. Shaft rod, 10. Sub-box, 11. Sub-cavity, 12. First sub-box, 13. Second sub-box, 14. Third sub-box, 15. Fourth sub-box, 16. Straight groove, 17. Annular groove, 18. Nut, 19. Screw rod. Specific embodiments

[0029] The present invention will be specifically introduced below in conjunction with the drawings and specific embodiments.

[0030] Example 1

[0031] The popular science sandbox has a transparent box body as the main body.

[0032] A longitudinal partition is provided inside the box body to divide the box cavity of the box body into a first box cavity 1 and a second box cavity 2.

[0033] The first box cavity 1 is used for placing sand samples.

[0034] An observation table 3 is provided in the second box cavity 2. A comparison dish (a suitable comparison dish can be set according to the needs of the comparison object) is provided on the table top of the observation table for placing comparison objects such as sand grains, salt, millet, rapeseed, corn flour, hair, etc. A searchlight 4 is provided on the upper side of the observation table 3 for irradiating the items on the observation table for observation. A magnifying glass 5 is provided above the observation table in the second box cavity 2 for magnifying the sand grains and comparison objects for better observation and comparison.

[0035] A penetration port 6 leading to the first box cavity 1 is provided on the top surface of the box body. The penetration port 6 is a limiting hole in the shape of a palm in the direction of the fingers when looking down, and a soft brush 7 is provided. The hand can be inserted into the first box cavity 1 through the penetration port 6 to touch the sand grains inside, feel and establish a sense of the particle size of the sand grains. The soft brush 7 is used to scrape off the sand grains attached to the hand back into the first box cavity 1 when the hand is withdrawn. Preferably, the size of the penetration port 6 is only large enough for the hand to be inserted when it is open, and not when it is clenched.

[0036] Example 2

[0037] Based on the structure of Embodiment 1, the first box cavity 1 is arranged as an annular cylinder, and a shaft rod 9 is arranged inside the ring. That is, the first box cavity 1 can rotate based on the shaft rod 9.

[0038] The first box cavity 1 is divided into several sub-boxes 10 by a number of radial page plates 8 arranged inside.

[0039] Longitudinally, the sub-box 10 includes a first sub-box 12 in the upper part and a second sub-box 13 in the lower part which are stacked, and a radial slide rail is provided on the contact surface between the first sub-box 12 and the second sub-box 13; circumferentially, an annular groove 17 is provided at the bottom of the bottom box of the second sub-box 13; radially, a straight groove 16 whose end faces the second box cavity 2 is provided on the bottom surface of the first box cavity 1; the cross-section of the straight groove 16 is rectangular, a screw rod 19 is placed in the straight groove 16, and a rectangular nut 18 is sleeved on the screw rod 19, the upper end of the nut 18 is placed in the annular groove 17 and is fixedly connected to the bottom of the second sub-box; the end of the screw rod 19 is tooth-connected to the shaft rod 9 at the central axis through bevel gears; the screw rod 19 driven by the shaft rod 9 makes the nut 18 move along the straight groove 16, pushing the second sub-box 13 to slide reciprocally along the slide rail. That is, the bottom surface of the second sub-box 13 is attached to the bottom surface of the cavity of the first box cavity 1. Rotate the shaft rod 9, which drives the screw rod 19 to rotate in the straight groove 16, and then drives the nut 18 to move in the straight groove 16. The nut 18 (the upper end of the nut 18 protrudes from the groove surface of the straight groove 16 in the annular groove 17) pushes the inner wall of the annular groove 17 of the second sub-box 13, so that the second sub-box 13 slides relative to the first sub-box 12 along the slide rail. At this time, the first sub-box 12 is in a relatively static state.

[0040] The contact surface between the first sub-box 12 and the second sub-box 13 is flush with the observation table 3. The bottom of the observation table 3 is hollow, and the cavity of the second sub-box 13 can slide into the bottom of the observation table 3 along the radial direction. That is, when the second sub-box 13 moves to the bottom of the observation table 3, the sand grains can be compared with salt, millet, rapeseed, corn flour, hair, etc. from different longitudinal and transverse angles.

[0041] After the comparison is completed, rotate the shaft rod 9 in the reverse direction, so that the second sub-box 13 returns to the bottom of the first sub-box 12, and at the same time the nut 18 is placed in the annular groove 17.

[0042] Lift the shaft rod 9 appropriately so that the tooth-connected part between the shaft rod 9 and the screw rod 19 is disengaged. Then rotate the first box cavity 1 to rotate the sub-box 10 storing sand grains of different particle sizes to face the first box cavity 1, that is, place it above the screw rod 19.

[0043] Repeat the above operations to compare sand grains of different particle sizes with salt, millet, rapeseed, corn flour, hair, etc.

[0044] Embodiment 3

[0045] Based on the structure of Embodiment 2, the second box cavity 2 is arranged in a ring shape, surrounding the first box cavity 1 and rotatable based on the first box cavity 1.

[0046] In the longitudinal direction, based on the observation table 3, the upper part of the second box cavity 2 is a closed third sub-box 14 in a ring shape. In the circumferential direction, the third sub-box 14 is also divided into several sub-cavities 11 for placing second contrast agents with different particle sizes or diameters.

[0047] The lower part of the second box cavity 2 is a fourth sub-box 15 that is open relative to the second sub-box 13. That is, the second sub-box 13 can slide radially into the fourth sub-box 15 and be placed at the bottom of the third sub-box 14.

[0048] 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 above embodiments do not limit the present invention in any form. Any technical solutions obtained by using equivalent replacements or equivalent transformations fall within the protection scope of the present invention.

Claims

1. Popular Science Sandbox, characterized by: It comprises a transparent box body, wherein the box cavity of the box body is divided into a first box cavity and a second box cavity by a longitudinal partition; The first box cavity is used to place a first comparison object. An observation platform is provided in the second box cavity, and the observation platform is used to place the second contrast object, or the second contrast object and the first contrast object; a searchlight is provided on the upper side of the observation platform; The cavity wall of the second box cavity is provided with a magnifying glass for comparing the first comparison object with the second comparison object; The box body is provided with a probe port at the top of the first box cavity.

2. The popular science sandbox according to claim 1, characterized in that: The first comparison object includes sand; the second comparison object includes at least one of salt, millet, rapeseed, corn flour, and hair.

3. The popular science sandbox according to claim 1, characterized in that: The probing opening is a limiting hole in the shape of a palm viewed from above in the direction of the fingers.

4. The popular science sandbox according to claim 1, characterized in that: The probe port is provided with a soft brush.

5. The popular science sandbox according to claim 1, characterized in that: The table top of the observation platform is provided with a comparison dish.

6. The popular science sandbox according to claim 1, characterized in that: The first box cavity is an annular cylinder, and a shaft is arranged inside the ring; The first box cavity is divided into a plurality of sub-boxes by a plurality of built-in radial leaf plates; the plurality of sub-boxes are used to place a plurality of first comparison objects with different particle sizes; In the longitudinal direction, the sub-box comprises a first sub-box at the upper part and a second sub-box at the lower part, and the contact surfaces of the first sub-box and the second sub-box are provided with radial slide rails; Along the circumferential direction, the bottom box of the second sub-box is provided with an annular groove; In radial direction, the bottom surface of the first box cavity is provided with a straight groove whose end faces the second box cavity; the cross section of the straight groove is rectangular, the screw is placed in the straight groove, and a rectangular nut is sleeved therein, and the upper end of the nut is placed in the annular groove; the end of the screw is connected to the shaft at the central axis through the helical gear teeth; The screw rod linked by the shaft rod enables the nut to move along the straight groove, pushing the second sub-box to slide back and forth along the slide rail.

7. The popular science sandbox according to claim 6, characterized in that: The contact surfaces of the first sub-box and the second sub-box are flush with the observation platform. The bottom of the observation platform is hollow, and the second sub-box can slide into the bottom of the observation platform in the radial direction.

8. The popular science sandbox according to claim 7, characterized in that: In the longitudinal direction, the second box cavity comprises a third sub-box at the upper part and a fourth sub-box at the lower part, the third sub-box has a circular cross section and is divided into a plurality of sub-cavities, and the plurality of sub-cavities are used to place second comparison objects with different particle sizes or diameters; The fourth sub-box is hollow, and the second sub-box can slide into the fourth sub-box in the radial direction.

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