A liquid pressure demonstration device

Abstract

This utility model relates to the field of teaching equipment technology and discloses a liquid pressure demonstration device, including a water storage bottle with demonstration components around the bottom. The water storage bottle is filled with liquid. A bottle cap is threaded to the top of the water storage bottle, and a second hose is connected to the top of the bottle cap. One end of the second hose is connected to a water tank, which is used to add liquid to the inside of the water storage bottle. A folding component is provided at the bottom of the water storage bottle, and an adjustment component is provided on the second hose. As the liquid in the water storage bottle rises, the liquid pressure changes continuously, and the slider slides accordingly inside the first groove. By observing the sliding of the slider, the liquid pressure can be demonstrated intuitively, making the abstract concept of liquid pressure concrete and perceptible. Utilizing the property that liquid has pressure and that pressure increases with depth, no additional complex devices are needed. Through a simple water-adding process, the liquid naturally enters the inside of the first groove and exerts pressure on the slider.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, specifically a liquid pressure demonstration device. Background Technology

[0002] Liquid pressure, or hydraulic pressure for short, refers to the pressure exerted by the weight of a liquid within the bottom, inner walls, and interior of a container. In physics teaching and science popularization, liquid pressure is an important yet abstract concept. Liquid pressure increases with depth; however, this property is often difficult for students to grasp through theoretical explanation alone, hindering their intuitive understanding. Therefore, appropriate demonstration equipment is needed to assist teaching and help students better master this knowledge.

[0003] Existing demonstration devices lack intuitiveness and dynamism when demonstrating changes in liquid pressure. They may only present the relationship between liquid pressure and depth through static data display or simple charts, making it difficult for students to directly observe the actual effects of changes in liquid pressure. Therefore, a liquid pressure demonstration device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a liquid pressure demonstration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid pressure demonstration device, including a water storage bottle, with demonstration components arranged around the bottom of the water storage bottle, and liquid being added inside the water storage bottle;

[0006] The top of the water storage bottle is threaded with a bottle cap, and the top of the bottle cap is connected to a second hose. One end of the second hose is connected to a water tank, which is used to fill the liquid into the inside of the water storage bottle.

[0007] The bottom of the water storage bottle is equipped with a folding component, and the second hose is equipped with an adjustment component;

[0008] The demonstration component includes several fixed frames. The fixed frame has a first sliding groove inside. A slider is seamlessly slidably connected to the inside of the first sliding groove. A pull rod that moves through one side of the fixed frame is fixed to one side of the slider. A first flexible tube is fixed to one end of the fixed frame.

[0009] Preferably, the two ends of the first hose are connected to the water storage bottle and the first slide groove, respectively. When liquid is added to the inside of the water storage bottle, the liquid pushes the slider to slide inside the first slide groove.

[0010] Preferably, the folding assembly includes a base, a plurality of support frames are fixed to the outside of the base, a connecting plate is hinged to one side of the support frame, and the fixing frame is fixed to the top of the connecting plate.

[0011] Preferably, the bottom of the inner wall of the support frame is fixed with a limiting block, which is used to limit the connection plate when the top of the limiting block contacts the connecting plate.

[0012] Preferably, the water storage bottle is fixed with several first magnets on the outside, and the fixing frame is fixed with second magnets on the outside. When the first magnets and the second magnets are magnetically connected, the demonstration component is in a folded storage state.

[0013] Preferably, the base is fixed to the bottom of the water storage bottle, and the water storage bottle has scale lines on its outer side.

[0014] Preferably, the adjustment component includes a housing, the inner wall of which is provided with a second sliding groove, the second sliding groove being inclined, and a rotating shaft being slidably connected to the inner side of the second sliding groove.

[0015] Preferably, as described above, a roller is fixedly sleeved on the outside of the rotating shaft, the outside of the roller is provided with anti-slip texture, the roller is rotatably connected to the outside of the second hose, and the housing is sleeved on the outside of the second hose.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0017] 1. As the liquid level in the water bottle rises, the liquid pressure changes continuously, and the slider slides accordingly inside the first groove. Observing the sliding of the slider provides a direct demonstration of liquid pressure, making the abstract concept of liquid pressure concrete and tangible. Utilizing the property that liquids have pressure and that pressure increases with depth, no additional complex devices are needed. Through a simple water-adding process, the liquid naturally enters the inside of the first groove and exerts pressure on the slider, thus achieving the demonstration function. The structure is ingenious and the operation is simple.

[0018] 2. When demonstrating liquid pressure, the connecting plate is in the unfolded state, and the top of the limiting block contacts the connecting plate and acts as a limit, which can effectively ensure that the demonstration component is in a stable working position. When the liquid pressure is not needed, simply rotate the connecting plate around the hinge point, and the second magnet moves closer to the first magnet. When the two are magnetically connected, the demonstration component is in a folded storage state. The fixing frame can be magnetically attached to the outside of the water bottle, which greatly saves the space required for equipment storage and makes it convenient to store and organize the equipment in a limited space. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the main cross-sectional structure of the fixing frame of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the second groove of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Water storage bottle; 2. Demonstration component; 21. Fixing frame; 22. First slide rail; 23. Pull rod; 24. Slider; 25. First hose; 3. Folding component; 31. First magnet; 32. Support frame; 33. Base; 34. Limiting block; 35. Connecting plate; 36. Second magnet; 4. Scale line; 5. Bottle cap; 6. Adjustment component; 61. Housing; 62. Second slide rail; 63. Rotating shaft; 64. Roller; 7. Second hose; 8. Water tank. Detailed Implementation

[0026] 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.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Example

[0029] Please see Figure 1-5 This utility model provides a technical solution: a liquid pressure demonstration device, including a water storage bottle 1, a demonstration component 2 around the bottom of the water storage bottle 1, and liquid inside the water storage bottle 1; a bottle cap 5 is threadedly connected to the top of the water storage bottle 1 to ensure sealing; after the demonstration, the bottle cap 5 can be removed to pour out the liquid inside the water storage bottle 1; a second hose 7 is connected to the top of the bottle cap 5, and one end of the second hose 7 is connected to a water tank 8, which is used to fill the water storage bottle 1 with liquid; when a demonstration is needed, liquid is injected into the water storage bottle 1 through the water tank 8, and the liquid flows into the water storage bottle 1 through the second hose 7; the water storage bottle 1, the fixing frame 21, the first hose 25, the second hose 7 and the water tank 8 are all made of transparent plastic; a folding component 3 is provided at the bottom of the water storage bottle 1, and an adjustment component 6 is provided on the second hose 7;

[0030] Demonstration component 2 includes several fixed frames 21. Each fixed frame 21 has a first sliding groove 22 inside. A slider 24 is seamlessly slidably connected to the inner side of the first sliding groove 22. A pull rod 23, which moves through one side of the fixed frame 21, is fixed to one end of each fixed frame 21. A first flexible hose 25, with all hoses of the same height, is fixed to one end of each fixed frame 21. Both ends of the first flexible hose 25 are connected to a water storage bottle 1 and the first sliding groove 22, respectively. When liquid is added to the water storage bottle 1, the liquid pushes the slider 24 to slide inside the first sliding groove 22. When the liquid level in the water storage bottle 1 rises, the liquid enters the first sliding groove 22 through the first flexible hose 25, generating a hydraulic thrust on the slider 24, causing it to slide along the first sliding groove 22. The displacement distance of the slider 24 is proportional to the liquid pressure, visually demonstrating the pressure change.

[0031] The folding assembly 3 includes a base 33, which is made of metal and is relatively heavy. This prevents the fixing frame 21 from being unstable and tipping over when it is attached to the side of the water bottle 1. Several support frames 32 are fixed to the outside of the base 33. A connecting plate 35 is hinged to one side of the support frame 32. The fixing frame 21 is fixed to the top of the connecting plate 35. A limit block 34 is fixed to the bottom of the inner wall of the support frame 32. When the top of the limit block 34 contacts the connecting plate 35, it is used to limit the connecting plate 35. The connecting plate 35 rotates around the hinge point to a horizontal position. The limit block 34 limits the bottom of the connecting plate 35, ensuring that the demonstration assembly 2 unfolds stably. This pushes the connecting plate 35 to rotate upward, so that the second magnet 36 on the outside of the fixing frame 21 is magnetically connected to the first magnet 31 on the outside of the water bottle 1, achieving compact storage of the demonstration assembly 2.

[0032] Several first magnets 31 are fixed to the outside of the water bottle 1, and second magnets 36 are fixed to the outside of the fixing frame 21. When the first magnets 31 and the second magnets 36 are magnetically connected, the demonstration component 2 is in a folded storage state. When it is not necessary to demonstrate liquid pressure, the connecting plate 35 is rotated around the hinge point, so that the second magnets 36 move closer to the first magnets 31, and the fixing frame 21 is magnetically attracted to the outside of the water bottle 1. The magnets are neodymium iron boron magnets. The base 33 is fixed to the bottom of the water bottle 1. The outside of the water bottle 1 is provided with scale lines 4. During the process of adding liquid into the water bottle 1 and demonstrating liquid pressure, the depth of the liquid in the water bottle 1 can be accurately read by observing the scale lines 4.

[0033] The adjusting component 6 includes a housing 61, with a second groove 62 on the inner wall of the housing 61. The second groove 62 is inclined, and a rotating shaft 63 is slidably connected to the inner side of the second groove 62. A roller 64 is fixedly sleeved on the outer side of the rotating shaft 63. The outer side of the roller 64 is provided with anti-slip texture (not shown in the figure). The roller 64 is slidably connected to the outer side of the second hose 7. The housing 61 is sleeved on the outer side of the second hose 7. The rotating shaft 63 slides to change the degree of compression of the roller 64 on the second hose 7, thereby adjusting the flow rate of liquid in the water tank 8 into the water storage bottle 1.

[0034] Working principle: Liquid is added to the water storage bottle 1. The water tank 8 adds liquid to the water storage bottle 1 through the second hose 7. As the liquid level in the water storage bottle 1 rises, the liquid enters the inner side of the first slide groove 22 through the first hose 25. Since the liquid has pressure and the pressure increases with depth, the liquid entering the inner side of the first slide groove 22 exerts pressure on the slider 24, pushing the slider 24 to slide inside the first slide groove 22. By observing the sliding of the slider 24, the liquid pressure can be demonstrated intuitively.

[0035] When demonstrating liquid pressure, the connecting plate 35 is in the unfolded state. At this time, the top of the limiting block 34 contacts the connecting plate 35, which limits the connecting plate 35 and ensures that the demonstration component 2 is in a stable working position so as to accurately demonstrate liquid pressure. When it is not necessary to demonstrate liquid pressure, the connecting plate 35 is rotated around the hinge point, thereby driving the fixed frame 21 to move. As the connecting plate 35 rotates, the second magnet 36 moves closer to the first magnet 31. When the first magnet 31 and the second magnet 36 are magnetically connected, the demonstration component 2 is in the folded storage state, and the fixed frame 21 is magnetically attracted to the outside of the water storage bottle 1, saving space and making it convenient for the storage and carrying of the equipment.

[0036] When it is necessary to adjust the flow rate of liquid from water tank 8 into water storage bottle 1, the rotating shaft 63 is slid within the second slide groove 62. The sliding of the rotating shaft 63 drives the roller 64 to move. Since the roller 64 is connected to the outside of the second hose 7 and has anti-slip texture on its outside, the sliding of the rotating shaft 63 changes the degree of compression of the roller 64 onto the second hose 7. When the degree of compression of the roller 64 onto the second hose 7 increases, the cross-sectional area of ​​the liquid flow in the second hose 7 becomes smaller, and the flow rate slows down; when the degree of compression of the roller 64 onto the second hose 7 decreases, the cross-sectional area of ​​the liquid flow in the second hose 7 becomes larger, and the flow rate speeds up, thereby achieving flow rate adjustment.

[0037] In summary, as the liquid level in the water storage bottle 1 rises and the liquid pressure changes, the slider 24 slides accordingly inside the first groove 22. Observing the sliding of the slider 24 provides a direct demonstration of liquid pressure, making the abstract concept of liquid pressure concrete and perceptible. Utilizing the property that liquids have pressure and that pressure increases with depth, no additional complex devices are needed. Through a simple water-adding process, the liquid naturally enters the inside of the first groove 22 and exerts pressure on the slider 24, thus achieving the demonstration function. The structure is ingenious and the operation is simple.

[0038] When demonstrating liquid pressure, the connecting plate 35 is in the unfolded state, and the top of the limiting block 34 contacts the connecting plate 35 and acts as a limit to it, which can effectively ensure that the demonstration component 2 is in a stable working position. When it is not necessary to demonstrate liquid pressure, simply rotate the connecting plate 35 around the hinge point, and the second magnet 36 moves closer to the first magnet 31. When the two are magnetically connected, the demonstration component 2 is in the folded storage state, and the fixing frame 21 can be magnetically attached to the outside of the water storage bottle 1, which greatly saves the space required for equipment storage and makes it convenient to store and organize the equipment in a limited space.

[0039] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A liquid pressure demonstration apparatus comprising a water storage bottle (1), characterized in that, The water storage bottle (1) is equipped with a demonstration component (2) around its bottom, and the water storage bottle (1) is filled with liquid; The top of the water storage bottle (1) is threaded with a bottle cap (5), and the top of the bottle cap (5) is connected to a second hose (7). One end of the second hose (7) is connected to a water tank (8), which is used to fill the liquid into the inside of the water storage bottle (1). The water storage bottle (1) is provided with a folding component (3) at the bottom, and the second hose (7) is provided with an adjusting component (6); The demonstration component (2) includes several fixed frames (21). The fixed frame (21) has a first sliding groove (22) inside. A slider (24) is seamlessly connected to the inner side of the first sliding groove (22). A pull rod (23) that moves through one side of the fixed frame (21) is fixed on one side of the slider (24). A first flexible hose (25) is fixed at one end of the fixed frame (21).

2. A liquid pressure demonstration apparatus according to claim 1, wherein The two ends of the first hose (25) are connected to the water storage bottle (1) and the first slide groove (22) respectively. When liquid is added to the inside of the water storage bottle (1), the liquid pushes the slider (24) to slide inside the first slide groove (22).

3. A liquid pressure demonstration apparatus according to claim 1, wherein The folding assembly (3) includes a base (33), a plurality of support frames (32) are fixed on the outside of the base (33), a connecting plate (35) is hinged to one side of the support frame (32), and the fixing frame (21) is fixed to the top of the connecting plate (35).

4. A liquid pressure demonstration apparatus according to claim 3, wherein A limiting block (34) is fixed at the bottom of the inner wall of the support frame (32). When the top of the limiting block (34) contacts the connecting plate (35), it is used to limit the connecting plate (35).

5. A liquid pressure demonstration apparatus according to claim 4, wherein The water storage bottle (1) is fixed with several first magnets (31) on the outside, and the fixing frame (21) is fixed with second magnets (36) on the outside. When the first magnets (31) and the second magnets (36) are magnetically connected, the demonstration component (2) is in a folded storage state.

6. A liquid pressure demonstration apparatus according to claim 5, wherein The base (33) is fixed to the bottom of the water storage bottle (1), and the water storage bottle (1) has scale lines (4) on the outside.

7. A liquid pressure demonstration apparatus as claimed in claim 1, wherein The adjustment component (6) includes a housing (61), and a second sliding groove (62) is provided on the inner wall of the housing (61). The second sliding groove (62) is inclined, and a rotating shaft (63) is slidably connected to the inner side of the second sliding groove (62).

8. A liquid pressure demonstration apparatus according to claim 7, wherein A roller (64) is fixedly sleeved on the outside of the rotating shaft (63). The roller (64) has anti-slip texture on the outside. The roller (64) is tumblingly connected to the outside of the second hose (7). The housing (61) is sleeved on the outside of the second hose (7).

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