Easy-to-flatten sand tray for teaching demonstration
By setting up chutes and scraper structures on the sand tray for teaching demonstration, the problem of inconvenience of sand scraping is solved, and efficient sand smoothing and convenient teaching demonstration effects are achieved.
Patent Information
- Application Number
- CN202322058854.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-02
- Publication Date
- 2025-07-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing sand trays for teaching demonstrations lack convenient sand scraping tools, resulting in poor scraping effect and inconvenient use.
A sand disk for teaching demonstration with chutes and scrapers was designed. The chute was equipped with scraper ends. The scraper slides in the chute to level the sand. It was equipped with a water storage tank, a water pump and drainage holes to meet the watering and drainage needs. The slide rail was an upward-facing prismatic structure to prevent sand from accumulation.
It realizes efficient scraping and smoothing of the sand surface, which is easy to use, and has watering and drainage functions, enhancing the convenience of operation during the demonstration process.
Smart Images
Figure CN223092505U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of teaching aids, and particularly to a sand plate for teaching demonstration. Background Art
[0002] In teaching, some scenarios can be described on a blackboard. For example, draw icons on the blackboard and explain them, or use slides, or use animations for demonstration. However, using such demonstration tools is not vivid enough and lacks the hands-on ability of students. In the process of communicating with peers, some use sand plates to assist in education. The sand plate includes a horizontally arranged plate surface for containing sand grains. The periphery of the plate surface has a protruding surrounding plate. The surrounding plate includes a left surrounding plate on the left side, a right surrounding plate on the right side, a front surrounding plate on the front side, and a rear surrounding plate on the rear side. There is a layer of sand on the plate surface. During use, buildings, roads, and fields can be formed on the sand for demonstration.
[0003] In the prior art, there is no component provided on the sand plate to help level it. During use, the surface of the sand plate often needs to be leveled. In the prior art, a ruler is used to scrape the sand flat, which has the disadvantages of inconvenient use and poor scraping effect. Summary of the Invention
[0004] The purpose of the utility model is to address the above-mentioned drawbacks and provide a sand plate for teaching demonstration that is convenient for leveling the sand on the sand plate, has a good leveling effect, and is convenient to use.
[0005] The technical solution of the utility model is realized as follows: A sand plate for teaching demonstration that is convenient for leveling includes a horizontally arranged plate surface for containing sand grains. The periphery of the plate surface has a protruding surrounding plate. The surrounding plate includes a left surrounding plate on the left side, a right surrounding plate on the right side, a front surrounding plate on the front side, and a rear surrounding plate on the rear side. The surrounding plate encloses a sand-containing groove, and the bottom surface of the sand-containing groove is a bottom plate. There is a layer of sand in the sand-containing groove. Its characteristics are that: there are horizontally arranged chutes on the inner sides of the left surrounding plate and the right surrounding plate. The chutes are at the upper part near the inner sides of the left surrounding plate and the right surrounding plate, and both ends of the chutes are close to the front surrounding plate and the rear surrounding plate respectively. It also includes a scraper. Both ends of the scraper have scraper ends installed in the chutes. The scraper ends are installed in the chutes and slide in the chutes. The lower surface of the scraper can level the sand; below the chutes is a slide rail, and the slide rail is a rhombus structure facing upwards; there are cleaning sponge blocks in front of and behind the scraper ends, and the upper surface of the sand is below the chutes.
[0006] Furthermore, this sanding disc further includes a water storage tank and a water pump. The water pump is connected to the water storage tank by an inlet pipe and has an outlet pipe connected to it. The outlet pipe is a flexible hose that can be bent. There are support rods on the disc surface, and there are clamping parts on the support rods that clamp the hose, and the hose is clamped on the clamping parts. The water pump is connected to a storage battery through a switch. There are also drain holes on the bottom panel, and there is a water receiving tank below the drain holes.
[0007] Furthermore, there is a mesh layer below the sand-containing groove. There is a distance between the mesh layer and the bottom panel. The sand is on top of the mesh layer. The mesh layer has small holes, and the diameter of the small holes is smaller than the diameter of the sand.
[0008] The beneficial effects of the present utility model are as follows: Such a sanding disc for teaching demonstrations is convenient for leveling the sand on the sanding disc and has the advantages of good leveling effect and convenient use. Description of the Drawings
[0009] Figure 1 is a top view structural schematic diagram of the present utility model.
[0010] Figure 2 is Figure 1 a sectional schematic diagram in the A - A direction of
[0011] Figure 3 is Figure 2 an enlarged view at B in
[0012] Figure 4 is a structural schematic diagram of the disc surface of the present utility model.
[0013] Figure 5 is a top view structural schematic diagram of the end part of the scraper.
[0014] Figure 6 is a structural schematic diagram of the scraper of the present utility model.
[0015] Wherein: 1. Disc surface; 21. Left enclosing plate; 22. Right enclosing plate; 23. Front enclosing plate; 24. Rear enclosing plate; 25. Sand-containing groove; 26. Bottom panel; 261. Drain hole; 27. Slide groove; 271. Slide rail; 3. Sand; 4. Scraper; 41. End of the scraper; 5. Sponge block; 6. Mesh layer; 7. Water pump; 71. Inlet pipe; 72. Outlet pipe; 73. Water storage tank; 8. Support rod; 81. Clamping part; 9. Water receiving tank; 10. Hair dryer; 101. Air outlet; 102. Connecting rod. Detailed Embodiments
[0016] The present utility model will be further described below with reference to the drawings.
[0017] As Figure 1 、2 As shown in Figures 3, 4, and 5, a sand tray for teaching demonstration that is easy to level includes a horizontally arranged tray surface 1 for containing sand grains. The periphery of the tray surface has a protruding enclosing plate. The enclosing plate includes a left enclosing plate 21 on the left side, a right enclosing plate 22 on the right side, a front enclosing plate 23 on the front side, and a rear enclosing plate 24 on the rear side. The enclosing plate encloses a sand-containing groove 25, and the bottom surface of the sand-containing groove is a bottom plate 26. There is a layer of sand 3 in the sand-containing groove. Its characteristics are: there are horizontally arranged sliding grooves 27 on the inner sides of the left enclosing plate and the right enclosing plate. The sliding grooves are located at the upper part near the inner sides of the left enclosing plate and the right enclosing plate, and both ends of the sliding grooves are close to the front enclosing plate and the rear enclosing plate respectively. It also includes a scraping plate 4. Both ends of the scraping plate have scraping plate ends 41 installed in the sliding grooves. The scraping plate ends are installed in the sliding grooves and slide in the sliding grooves, and the sand can be leveled under the scraping plate; below the sliding grooves is a slide rail 271, and the slide rail is a rhombus structure facing upwards; there are cleaning sponge blocks 5 in front of and behind the scraping plate ends, and the upper surface of the sand is below the sliding grooves.
[0018] When the utility model is in use, to level the sand layer, as long as the scraping plate is pulled back and forth, the scraping plate moves back and forth in the sliding groove once, and the sand layer can be leveled, achieving the purpose of the utility model.
[0019] Since the slide rail is below the sliding groove and the slide rail is a rhombus structure facing upwards, sand will not accumulate on the slide rail; and since there are cleaning sponge blocks in front of and behind the scraping plate ends, even if there is sand on the slide rail, it can be cleaned during the scraping process of the scraping plate by using the sponge blocks, keeping the leveled sand surface flat.
[0020] Furthermore, the sand tray also includes a water storage tank 73 and a water pump 7. The water pump is connected to the water storage tank by a water inlet pipe 71, and there is also a water outlet pipe 72 connected to the water pump. The water outlet pipe is a flexible hose that can be bent. There is a support rod 8 on the tray surface, and there is a clamping member 81 on the support rod for clamping the hose. The hose is clamped on the clamping member. The water pump is connected to a storage battery through a switch, and there is also a drain hole 261 on the bottom plate, and there is a water receiving tank 9 below the drain hole.
[0021] During the demonstration process, sometimes it is necessary to water the sand, which can meet the watering requirement; in addition, the setting of the drain hole and the water receiving tank also facilitates drainage.
[0022] Furthermore, there is a mesh layer 6 below the sand-containing groove. There is a distance between the mesh layer and the bottom plate, and the sand is on the mesh layer. The mesh layer has small holes, and the diameter of the small holes is smaller than the diameter of the sand.
[0023] The present utility model is configured in this way to facilitate the drainage of the water drained from the sand.
[0024] Furthermore, a hair dryer 10 is also installed on this sand tray. The hair dryer is connected to a storage battery through a switch. The hair dryer has a blowing port 101, and the blowing port is connected to the upper surface of the surrounding plate by a connecting rod 102.
[0025] The present utility model is configured in this way and also meets the requirement of wind force needed during the demonstration.
[0026] The above are only specific embodiments of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.
Claims
1. A sand tray for teaching demonstration that is convenient for leveling, which includes a horizontally arranged disk surface for holding sand grains. There are protruding side plates around the disk surface. The side plates include a left side plate on the left, a right side plate on the right, a front side plate in the front, and a rear side plate at the rear. The side plates enclose a sand-holding groove. The bottom surface of the sand-holding groove is a bottom plate. There is a layer of sand in the sand-holding groove. Its characteristics are: The inner sides of the left and right enclosing plates are provided with horizontally arranged chutes. The chutes are located at the upper parts near the inner sides of the left and right enclosing plates. The two ends of the chutes are respectively close to the front enclosing plate and the rear enclosing plate. It further includes a scraper. Both ends of the scraper are provided with scraper ends installed in the chutes. The scraper ends are installed in the chutes and slide in the chutes. The lower surface of the scraper can level the sand. Below the chutes are slide rails, and the slide rails are upward rhombus structures. There are cleaning sponge blocks in front of and behind the scraper ends. The upper surface of the sand is below the chutes.
2. The teaching demonstration sand table for facilitating leveling according to claim 1, wherein: This sand tray further includes a water storage tank and a water pump. The water pump is connected to the water storage tank by an inlet pipe, and there is also an outlet pipe connected to the water pump. The outlet pipe is a flexible hose that can be bent. There are support rods on the upper surface of the tray. There are clamping members on the support rods, and the hose is clamped on the clamping members. The water pump is connected to a storage battery through a switch. There are also drain holes on the bottom panel, and there is a water receiving tank below the drain holes.
3. The teaching demonstration sand table for facilitating leveling according to claim 2, wherein: There is also a mesh layer below the sand-containing groove. There is a distance between the mesh layer and the bottom panel. The sand is on the upper surface of the mesh layer. The mesh layer is provided with small holes, and the diameter of the small holes is smaller than the diameter of the sand.