Wall-mounted popular science exhibit for displaying relationship between fluid flow velocity and pressure intensity

Abstract

The utility model discloses a wall-mounted science popularization exhibit for displaying the relation between the flow velocity and the pressure intensity of fluid. A wall-mounted science popularization exhibit for displaying the relationship between the flow rate and the pressure intensity of fluid comprises a fixed main board, a placement assembly, a display assembly and a backflow assembly, the fixed main board comprises a positioning plate, positioning holes are formed in the four corners of the positioning plate, the placement assembly is installed in an inner cavity of the positioning plate, and the placement assembly comprises a display plate embedded in the inner cavity of the positioning plate. A containing groove and a fixing plate are welded to the lower end of the display plate, the fixing plate is installed at the lower end of the containing groove, a display assembly is installed in the containing groove and comprises a liquid storage bottle, and a lower end opening of the liquid storage bottle is communicated with a connecting pipe arranged above a display groove body. The color liquid can be recycled through the arranged backflow assembly, automatic circulation can be achieved through the design of the backflow assembly, the treatment process after the experiment is finished is simplified, and the repeated display efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a wall-mounted popular science exhibit for demonstrating the relationship between fluid flow velocity and pressure. Background Art

[0002] The wall-mounted popular science exhibit for demonstrating the relationship between fluid flow velocity and pressure mainly helps the public understand the basic concepts in fluid dynamics through intuitive demonstrations and interactive experiences. Through observation and participation, the audience can personally feel the relationship between fluid flow velocity and pressure.

[0003] In the existing wall-mounted popular science exhibits for demonstrating the relationship between fluid flow velocity and pressure, one end of a conveying container is usually connected to an observation vessel. The observation vessel is connected by multiple different pipe cross-sections, and observation rods are connected to each of the multiple different pipe cross-sections. Then, colored liquid is poured into the conveying container, so that the colored liquid flows into the observation vessel. The liquid flows into the observation rods connected above through the multiple different pipe cross-sections. The audience can perceive the changes in flow velocity and pressure by observing the height differences of the liquid levels in the observation rods on different pipe cross-sections.

[0004] However, this device has certain defects. After a group of experiments on the relationship between fluid flow velocity and pressure are demonstrated, the staff needs to drain the colored liquid from the end of the observation vessel, and the process of draining the liquid may take a certain amount of time. In the case of frequent demonstrations, this will affect the continuous display efficiency of the exhibit.

[0005] Therefore, it is necessary to provide a wall-mounted popular science exhibit for demonstrating the relationship between fluid flow velocity and pressure to solve the above technical problems. Summary of the Utility Model

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a wall-mounted popular science exhibit for demonstrating the relationship between fluid flow velocity and pressure. By the combined use of multiple parts in the provided reflux assembly, the recycled use of colored liquid can be realized. Through the design of the reflux assembly, automatic circulation can be achieved, the post-experiment processing flow can be simplified, and the repeated display efficiency can be improved.

[0007] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0008] The popular science exhibit for wall-mounted display of the relationship between fluid flow rate and pressure includes: a fixed main board, a placement component, a display component, and a reflux component. The fixed main board includes a positioning board with positioning holes at its four corners. Inside the cavity of the positioning board, a placement component is installed. The placement component includes a display board fitted into the cavity of the positioning board. At the lower end of the display board, a placement groove and a fixing plate are welded. The fixing plate is installed at the lower end of the placement groove. Inside the inner groove of the placement groove, a display component is installed. The display component includes a liquid storage bottle. The lower port of the liquid storage bottle is communicated with a connecting pipe provided above the display tank body. The display tank body is composed of a first tank body, a second tank body, and a third tank body. The through cavities of the first tank body and the third tank body are the same, and the through cavity of the second tank body is smaller than those of the first tank body and the third tank body. The reflux component includes a drain pipe communicated with the third tank body. The drain pipe penetrates through the placement groove and is communicated with a reflux box provided at the upper end of the fixing plate. The other end of the reflux box is provided with a reflux pipe. One end of the reflux pipe is connected to a pump in the reflux box, and the other end is communicated with the liquid storage bottle.

[0009] Preferably, two pins are also assembled inside the cavity of the positioning board. On the inner side of the end of the display board, there are card slots adapted to the pins. The display board is detachably installed inside the cavity of the positioning board through the pins.

[0010] Preferably, a push plate is further provided inside the cavity of the third tank body. On one side of the push plate, there is a push rod that penetrates through the third tank body.

[0011] Preferably, a push column is further provided inside the cavity of the liquid storage bottle. The push column can move up and down inside the cavity of the liquid storage bottle.

[0012] Preferably, both the display board and the placement groove are provided with card slots, and the display tank body is snapped into the card slots of the display board and the placement groove.

[0013] Preferably, the inner cavity of the positioning board has the same diameter as the display board, and the display board is completely fitted into the inner cavity of the positioning board.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] (1) By the combined use of multiple parts in the reflux component provided in the present utility model, the recycling of the colored liquid can be achieved. Through the design of the reflux component, automatic circulation can be realized, the post-experiment processing flow can be simplified, and the repeated display efficiency can be improved.

[0016] (2) By the combined use of the positioning board, pins, and display board provided in the present utility model, the quick positioning and installation of the display board can be realized. During actual use, only need to snap the display board into the inner cavity of the positioning board, and then fix the positioning board and the display board through the pins. Compared with the traditional method of using positioning bolts, the use of pins facilitates the disassembly and installation by the staff.

[0017] (3) By the combined use of the third groove body, the push plate, and the push rod provided in the present utility model, the adjustment of the inner cross-section of the third groove body can be realized. By adjusting the inner cross-section of the third groove body, the variation relationship between the flow velocity and the pressure when the fluid flows in pipelines with different cross-sectional areas can be more intuitively simulated and demonstrated. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the popular science exhibit for wall-mounted display of the relationship between fluid flow velocity and pressure provided by the present utility model;

[0019] Figure 2 It is a schematic diagram of the installation structure of the fixing component and the limiting component;

[0020] Figure 3 It is a schematic diagram of the display component structure;

[0021] Figure 4 It is a front view of the popular science exhibit for wall-mounted display of the relationship between fluid flow velocity and pressure.

[0022] Among them, the names corresponding to the reference numerals are: 100, fixed main board; 101, positioning board; 102, positioning hole; 103, plug; 200, placement component; 201, display board; 202, card slot; 203, placement groove; 204, fixing board; 300, display component; 301, liquid storage bottle; 302, push column; 303, connecting pipe; 304, first groove body; 305, second groove body; 306, third groove body; 307, push rod; 308, sealing ring sleeve; 309, push plate; 310, display pipe; 400, reflux component; 401, drain pipe; 402, reflux box; 403, reflux pipe. Detailed Embodiment

[0023] The present utility model will be further described below in conjunction with the description of the drawings and embodiments. The implementation manners of the present utility model include but are not limited to the following embodiments.

[0024] First Embodiment:

[0025] As Figures 1-4As shown in the figure, the present utility model provides a popular science exhibit for wall-mounted display of the relationship between fluid flow rate and pressure, including: a fixed main board 100, a placement component 200, a display component 300, and a reflux component 400. The fixed main board 100 includes a positioning board 101, and positioning holes 102 are provided at the four corners of the positioning board 101. A placement component 200 is installed inside the positioning board 101. The placement component 200 includes a display board 201 fitted inside the positioning board 101. A placement groove 203 and a fixing board 204 are welded to the lower end of the display board 201. The fixing board 204 is installed at the lower end of the placement groove 203. A display component 300 is installed in the inner groove of the placement groove 203. The display component 300 includes a liquid storage bottle 301. The lower port of the liquid storage bottle 301 is communicated with a connecting pipe 303 provided above the display tank body. The display tank body is composed of a first tank body 304, a second tank body 305, and a third tank body 306. The through cavities of the first tank body 304 and the third tank body 306 are the same. The through cavity of the second tank body 305 is smaller than the through cavities of the first tank body 304 and the third tank body 306. And display pipes 310 are communicated above all three tank bodies. The reflux component 400 includes a drain pipe 401 communicated with the third tank body 306. A control valve is provided at the connection between the third tank body 306 and the drain pipe 401. The drain pipe 401 penetrates through the placement groove 203 and is communicated with a reflux tank 402 provided at the upper end of the fixing board 204. The other end of the reflux tank 402 is provided with a reflux pipe 403. One end of the reflux pipe 403 is connected to a pump in the reflux tank 402, and the other end is communicated with the liquid storage bottle 301. During actual use, the staff starts the pump in the reflux tank 402, and the colored liquid in the reflux tank 402 is transported to the liquid storage bottle 301 through the reflux pipe 403 by the pump. The colored liquid flows from the liquid storage bottle 301 into the first tank body 304, the second tank body 305, and the third tank body 306 through the connecting pipe 303. When the three tank bodies are full, the colored liquid will flow into the display pipes 310 communicated above the three tank bodies respectively. Just observe the changes of the three tank bodies and the display pipes 310. When the display is over, by rotating the control valve at one end of the third tank body 306, the liquid directly flows back to the reflux tank 402 through the drain pipe 401. It should be noted here that the control valve is not drawn in the figure, and all three tank bodies and the display pipes 310 are made of transparent glass material.

[0026] Through the coordinated use of multiple parts in the reflux component 400 provided, the recycling of the colored liquid can be achieved. Through the design of the reflux component 400, automatic circulation can be realized, the processing flow after the experiment on the relationship between fluid flow rate and pressure is simplified, and the repeated display efficiency is improved.

[0027] Second Embodiment:

[0028] As Figures 1-2As shown in the figure, two pins 103 are also assembled in the inner cavity of the positioning plate 101. A clamping groove 202 adapted to the pins 103 is provided on the inner end side of the display board 201. The display board 201 is detachably installed in the inner cavity of the positioning plate 101 through the pins 103.

[0029] Through the combined use of the provided positioning plate 101, pins 103, and display board 201, the quick positioning and installation of the display board 201 can be achieved. During actual use, only need to snap the display board 201 into the inner cavity provided by the positioning plate 101, and then fix the positioning plate 101 and the display board 201 through the pins 103. Compared with the traditional method using positioning bolts, the use of pins 103 facilitates the disassembly and installation by the staff.

[0030] Third Embodiment:

[0031] As Figures 3-4 shown, a push plate 309 is also provided in the inner cavity of the third groove body 306. A push rod 307 is provided on one side of the push plate 309, and the push rod 307 penetrates through the third groove body 306.

[0032] Through the combined use of the provided third groove body 306, push plate 309, push rod 307, and sealing ring sleeve 308, the adjustment of the inner cross-section of the third groove body 306 can be achieved. By adjusting the inner cross-section of the third groove body 306, the change relationship between the flow velocity and pressure when the fluid flows in pipes with different cross-sectional areas can be more intuitively simulated and demonstrated.

[0033] Fourth Embodiment:

[0034] As Figure 4 shown, a push column 302 is also provided in the inner cavity of the liquid storage bottle 301, and the push column 302 can move up and down in the inner cavity of the liquid storage bottle 301.

[0035] By providing the push column 302 in the inner cavity of the liquid storage bottle 301, during actual use, when opening the control valve to drain the liquid, by pushing the push column 302 downward, the internal pressure becomes larger, further enabling the colored liquid to quickly drain from the groove body, thereby improving the liquid drainage efficiency.

[0036] Fifth Embodiment:

[0037] As Figures 1-2 shown, both the display board 201 and the placement groove 203 are provided with clamping positions, and the display groove body is snapped into the clamping positions of the display board 201 and the placement groove 203.

[0038] Through the clamping position design, the display groove body can be firmly fixed in the display board 201 and the placement groove 203, reducing the risk of displacement or dropping caused by improper operation or accidental collision. At the same time, the clamping position design can ensure that the display groove body remains stable during the display process, thus ensuring the accuracy and reliability of the fluid display experiment.

[0039] Sixth Embodiment:

[0040] As Figure 2 shown, the inner cavity provided in the positioning plate 101 has the same caliber as the display board 201, and the display board 201 is completely fitted into the inner cavity provided in the positioning plate 101.

[0041] During the display process, since the display board 201 is completely fitted into the inner cavity of the positioning plate 101, improving that the caliber of the display board 201 is exactly the same as that of the inner cavity of the positioning plate 101 can achieve precise matching, thereby improving the structural stability of the entire display device. During the display or experiment process, the error caused by structural shaking or movement can be reduced, so that the display experiment of the relationship between fluid flow rate and pressure is more accurate.

[0042] Working Principle: In actual use, the staff starts the pump in the return tank 402, and the colored liquid in the return tank 402 is transported to the liquid storage bottle 301 through the return pipe 403 by the pump. The colored liquid flows from the liquid storage bottle 301 into the first tank 304, the second tank 305, and the third tank 306 through the connecting pipe 30. When the three tanks are full, the colored liquid will flow into the display pipes 310 connected above the three tanks respectively. The changes of the three tanks and the display pipes 310 can be observed. When the display is over, by rotating the control valve at one end of the third tank 306, the liquid directly flows back to the return tank 402 through the drain pipe 401. After draining is completed, the control valve is closed. When another experiment is needed, only the pump in the return tank 402 needs to be started.

[0043] The above embodiments are only one of the preferred embodiments of the present invention and should not be used to limit the protection scope of the present invention. Any meaningless changes or touch-ups made on the main design concept and spirit of the present invention, as long as the technical problems solved are still the same as those of the present invention, should be included in the protection scope of the present invention.

Claims

1. A wall-mounted popular science exhibit showing the relationship between fluid velocity and pressure, characterized in that: include: A fixed mainboard (100), a placement component (200), a display component (300), and a reflux component (400), wherein the fixed mainboard (100) comprises a positioning plate (101), the positioning plate (101) is provided with positioning holes (102) at four corners, the inner cavity of the positioning plate (101) is provided with a placement component (200), the placement component (200) comprises a display plate (201) embedded in the inner cavity of the positioning plate (101), a placement groove (203) and a fixed plate (204) are welded at the lower end of the display plate (201), the fixed plate (204) is installed at the lower end of the placement groove (203), the inner groove of the placement groove (203) is provided with a display component (300), the display component (300) comprises a liquid storage bottle (301), the lower end of the liquid storage bottle (301) is connected to a connecting pipe (303) provided above the display groove body, and ... The display tank body is composed of a first tank body (304), a second tank body (305), and a third tank body (306). The first tank body (304) and the third tank body (306) have the same through cavity, the second tank body (305) has a smaller through cavity than the first tank body (304) and the third tank body (306), and the tops of the three tank bodies are connected to the display tube (310). The reflux assembly (400) includes a discharge tube connected to the third tank body (306). A control valve is provided at the connection point between the liquid pipe (401) and the third tank body (306) and the liquid discharge pipe (401). The liquid discharge pipe (401) passes through the placement tank (203) and is connected to a reflux box (402) provided at the upper end of the fixed plate (204). A reflux pipe (403) is provided at the other end of the reflux box (402). One end of the reflux pipe (403) is connected to a pump in the reflux box (402), and the other end is connected to the liquid storage bottle (301).

2. A wall-mounted popular science exhibit for displaying the relationship between fluid velocity and pressure according to claim 1, characterized in that: The inner cavity of the positioning plate (101) is also equipped with two latches (103); the inner end side of the display plate (201) is provided with a card slot (202) adapted to the latches (103); and the display plate (201) is detachably mounted on the inner cavity of the positioning plate (101) via the latches (103).

3. A wall-mounted popular science exhibit for displaying the relationship between fluid velocity and pressure according to claim 1, characterized in that: The inner cavity of the third groove body (306) is further provided with a push plate (309), and a push rod (307) is provided on one side of the push plate (309), and the push rod (307) passes through the third groove body (306).

4. A wall-mounted popular science exhibit for displaying the relationship between fluid velocity and pressure according to claim 1, characterized in that: The inner cavity of the liquid storage bottle (301) is also provided with a push column (302), and the push column (302) can move up and down in the inner cavity of the liquid storage bottle (301).

5. The wall-mounted popular science exhibit for displaying the relationship between fluid velocity and pressure according to claim 2, characterized in that: The display board (201) and the placement slot (203) are both provided with a locking position, and the display slot body is locked into the locking position of the display board (201) and the placement slot (203).

6. A wall-mounted popular science exhibit for displaying the relationship between fluid velocity and pressure according to claim 5, characterized in that: The inner cavity of the positioning plate (101) has the same diameter as the display plate (201), and the display plate (201) is completely embedded in the inner cavity of the positioning plate (101).

Images