CN210039309U

CN210039309U - Siphon experiment demonstration device

Info

Publication number: CN210039309U
Application number: CN201920171585.1U
Authority: CN
Inventors: 张占文
Original assignee: Guangzhou Saines Education Technology Co Ltd
Current assignee: Guangzhou Saines Education Technology Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-02-07
Anticipated expiration: 2029-01-30

Abstract

The utility model provides a siphon experiment demonstration device, which comprises a support with a step-shaped slope surface, wherein a plurality of containers with open tops are sequentially arranged on the support along the step-shaped slope surface, the containers are connected with the support, the containers from top to bottom on the support are respectively provided with a straw, one end of the straw is positioned in the container, and the other end of the straw extends out of the container and is positioned in the container adjacent to the straw; the siphon experiment demonstration device has the advantages of simple and reasonable structure, and capability of enabling students to visually know the physical phenomenon of siphon.

Description

Siphon experiment demonstration device

Technical Field

The utility model belongs to the technical field of physical experiment teaching equipment, concretely relates to siphon experiment presentation device.

Background

Physics is the subject of studying the most general laws of motion and basic structures of substances. As the leading subject of natural science, physical studies are as large as the universe and as small as the most basic motion forms and laws of all substances such as basic particles, and therefore, the method becomes the research foundation of other natural science subjects. The theoretical structure of the system fully uses mathematics as the working language of the system, and experiments are used as the only standard for checking the theoretical correctness, which is the most precise natural science subject at present. Siphon (syphonage) is a phenomenon of utilizing the action force of liquid level difference to fill liquid in an inverted U-shaped tubular structure, then one end with a high opening is placed in a container filled with liquid, and the liquid in the container can continuously flow out to a lower position through a siphon tube. The essence of the siphon is due to the liquid pressure and the atmospheric pressure. Under the combined action of atmospheric pressure and liquid pressure, water moves in one direction. However, if the physical phenomena related to siphoning are only taught to the school-age children through abstract, boring and complex theoretical knowledge, the physical knowledge can not be accepted and understood by students, but also the contradiction psychology of the physics can be caused, so that the students cannot achieve the required teaching results; therefore, it is necessary to provide a simple and easy-to-operate experimental device capable of intuitively reflecting the corresponding physical phenomena, so that students can experience the physical phenomena by themselves, and learn the corresponding physical knowledge in the experience of the corresponding physical phenomena, thereby improving the corresponding teaching effect.

Disclosure of Invention

In view of this, the utility model aims at providing a simple structure is reasonable, can make the student image audio-visually know the experimental apparatus of siphon physics phenomenon.

In order to solve the technical problem, the utility model discloses the technical scheme who uses is:

the utility model provides a siphon experiment presentation device, includes that one has the domatic support of step form, it has a plurality of open-top's container to set gradually along its step form domatic on the support, a plurality of containers also are the step form setting, be provided with the straw on the container from top to bottom on the support respectively, the first end of every straw is located the container of top, and the second end stretches out the container of top is outer and stretch into rather than in the adjacent container of below, the first end of straw is higher than the second end of straw.

Preferably, a collecting box is further arranged at the lowest part of the step-shaped slope surface on the support and is used for collecting liquid flowing out of the container adjacent to the collecting box.

Preferably, the straw has a U-bend formed thereon, the U-bend extending through and being sealed to the container wall, the U-bend being located at a height on the container not exceeding 3/4.

Preferably, one end of the straw positioned in the container extends to the bottom of the container, the other end of the straw extending out of the container extends to the other container adjacent to the container, and the other end of the straw extending out of the container is lower than the end of the straw positioned in the container.

Preferably, the support is further provided with a water circulation device, the water circulation device comprises a water inlet pipe, a water outlet pipe and a water pump, the water inlet pipe is communicated with the collection box, the water outlet pipe is communicated with the container positioned at the top of the support, the water pump is connected with the water inlet pipe and the water outlet pipe, and the water pump is fixedly connected with the support.

Preferably, the container is a transparent container, the slow collecting box is a transparent collecting box, and the straw is a transparent straw.

Preferably, the holder is formed by stacking a plurality of containers.

Preferably, the first end of the suction pipe penetrates through the side wall of the container positioned above and extends into the container, and the second end of the suction pipe extends into the container positioned below from the top opening of the container positioned below.

The beneficial effects of the utility model are mainly embodied in that: because the support is provided with the plurality of containers which are sequentially heightened and the suction pipes which are mutually matched with the containers, when liquid such as water is poured in the container which is positioned at the highest position on the support, the water can flow into the container adjacent to the suction pipe through the suction pipe and the siphon principle when the water flows over the highest position of the U-shaped bend on the suction pipe, and when the water in the previous container flows into the next container and the water flows over the highest position of the U-shaped bend on the suction pipe, the water can flow into the next container again until reaching the lowest position. Therefore, the physical phenomenon of siphon is visually and intuitively displayed to students, and the cognition of the students on the physics is deepened, and the corresponding teaching effect is improved.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic structural view of a siphon experiment demonstration apparatus of the present invention;

fig. 2 is a schematic structural view of a first embodiment of a siphon experiment demonstration apparatus of the present invention;

fig. 3 is a schematic structural diagram of a second embodiment of the siphon experiment demonstration apparatus of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it is understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and only describe the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention; in addition, in the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a welding fixing manner, a pin fixing manner, or the like, which is commonly used in the prior art, and therefore, detailed description thereof is omitted in this embodiment.

As shown in fig. 1, the present embodiment provides a siphon experiment demonstration apparatus, including a support 1 having a step-shaped slope surface, a plurality of open-topped containers 2 are sequentially arranged on the support 1 along the step-shaped slope surface, three containers 2 are provided in the present embodiment, of course, the number of the containers 2 can be flexibly configured according to the same use requirements, the containers 2 are clamped with the support 1 or fixed by bolts, the containers 2 from top to bottom on the support 1 are respectively provided with a suction pipe 3, one end of the suction pipe 3 is located in the container 2, and the other end extends out of the container 2 and is located in the container 2 adjacent thereto. When the siphon experiment demonstration device is demonstrated, water is injected into the container 2 which is positioned on the support 1 and is positioned at the highest position, when the water is not connected to the highest position of the U-shaped bend 31 on the suction pipe 3 on the container, the water can flow into the container 2 adjacent to the water through the suction pipe 3, and when the liquid level in the container 2 is lower than the highest position of the suction pipe 3, the water can still continuously flow out in a siphon phenomenon until the water in the container 2 is sucked to be dry; when the water in the previous container 2 flows into the next container 2 and the water has passed the highest point of the U-bend 31 of the suction pipe 3, it will flow again to the next container 2, to the lowest point. Therefore, the physical phenomenon of siphon is visually and intuitively shown to students, and meanwhile, the water in the container 2 flows downwards step by step under the siphon action, so that the interestingness of the experiment is increased.

In the preferred embodiment, as shown in fig. 1, a collecting box 4 is further arranged at the lowest part of the step-shaped slope surface on the support 1, and the collecting box 4 is used for collecting the liquid flowing out from the container 2 adjacent to the collecting box 4, so that the use convenience of the experiment demonstration device is improved.

In the preferred embodiment, as shown in figure 1, the suction pipe 3 is provided with a U-bend 31, the U-bend 31 penetrates through the wall of the container 2 and is sealed with the container 2, the U-bend 31 is positioned on the container 2 at a height not exceeding 3/4, and the highest point of the U-bend is not higher than the height of the container 2, so that the water in the container 2 can flow out automatically when the water level is higher than the U-bend, and the phenomenon that the water cannot flow out automatically and form siphon when the height of the U-bend 31 of the suction pipe 3 is higher than the height of the container 2 is avoided.

In the preferred embodiment, as shown in fig. 1, one end of the suction pipe 3 inside the container 2 extends to the bottom of the container 2 to help suck out all the liquid in the container 2, the other end of the suction pipe 3 extending out of the container 2 extends into another container 2 adjacent to the container 2, and the other end extending out of the container 2 is lower than the end of the suction pipe in the container 2, i.e. the length of the suction pipe 3 extending out of the container 2 is greater than the length of the suction pipe in the container 2, so that the liquid at the highest point in the suction pipe 3 can move to the lower nozzle under the action of gravity, and negative pressure is generated inside the suction pipe 3, which causes the liquid at the higher nozzle to be sucked into the highest point.

As shown in fig. 2, in another embodiment, a water circulation device 5 is further disposed on the support 1, the water circulation device 5 includes a water inlet pipe 51, a water outlet pipe 52 and a water pump 53, the water inlet pipe 51 is communicated with the collection box 4, the water outlet pipe 52 is communicated with the container 2 located at the top of the support 1, the water pump 53 is connected with the water inlet pipe 51 and the water outlet pipe 52, the water pump 53 is fixed to the support 1 through bolts, when water flows into the collection box 4 from the container 2, the water pump 53 is started, and the water pump 53 sends the water in the collection box 4 into the highest container 2 on the support 1, so that the siphon experiment demonstration device can perform circulation demonstration, and the convenience in use of the demonstration device is improved.

As shown in fig. 1 and 2, in the preferred embodiment, the container 2 and the collection box 4 are both transparent; the suction pipe 3 is a transparent suction pipe 3; the transparent container 2, the collecting box 4 and the straw 3 can help students clearly observe the flowing condition of water in the container 2 and the straw 3 when the demonstration device is used for demonstration, so that the understanding of the students on the physical phenomenon of siphon is deepened.

In another embodiment, as shown in fig. 3, in this embodiment, the support 1 is formed by stacking a plurality of containers 2 and forming a slope with a step shape, and then a plurality of open-topped containers 2 are sequentially arranged along the step shape slope, the plurality of containers 2 on the support 1 are arranged in a step shape, the containers 2 from top to bottom on the support 1 are respectively provided with a suction pipe 3, a first end of each suction pipe 3 is located in the upper container 2, a second end of each suction pipe 3 extends out of the upper container 2 and into the opening of the lower container 2 adjacent to the upper container, the first end of each suction pipe 3 is higher than the second end of the suction pipe 3, and a liquid level difference can be formed when the first end of each suction pipe is higher than the second end of the suction pipe 3, so as to form a siphon action. A collecting box 4 is also arranged on the support 1 at the lowest part of the step-shaped slope surface, the collecting box 4 can use the container 2, and the collecting box 4 is used for collecting the liquid flowing out from the container 2 adjacent to the collecting box 4. The suction pipe 3 is provided with a U-shaped bend 31, the U-shaped bend 31 penetrates through the wall of the container and is sealed with the container 2, the U-shaped bend is positioned on the container at a height not exceeding 3/4, the water in the container 2 can flow out automatically when the water level is higher than the U-shaped bend, and the phenomenon that the water cannot flow out automatically and form siphon when the height of the U-shaped bend 31 of the suction pipe 3 is higher than the height of the container 2 is avoided.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a siphon experiment presentation device which characterized in that: including a support that has step slope surface, set gradually a plurality of open-top's container along its step slope surface on the support, a plurality of containers also are the step setting, be provided with the straw on the container from top to bottom on the support respectively, the first end of every straw is located the container of top, and the second end stretches out outside the container of top and stretch into rather than the adjacent container of below in, the first end of straw is higher than the second end of straw.

2. A siphon experiment demonstration apparatus according to claim 1, characterised in that: and a collecting box is also arranged at the lowest part of the step-shaped slope surface on the support and is used for collecting liquid flowing out of the container adjacent to the collecting box.

3. A siphon experiment demonstration apparatus according to claim 1, characterised in that: the straw has a U-shaped bend extending through and sealed to the container wall, the U-shaped bend being located at a height on the container not exceeding 3/4.

4. A siphon experiment demonstration apparatus according to claim 3, characterised in that: one end of the straw positioned in the container extends to the bottom of the container, the other end of the straw extending out of the container extends to the other container adjacent to the container, and the other end of the straw extending out of the container is lower than the end of the straw positioned in the container.

5. A siphon experiment demonstration apparatus according to claim 1, characterised in that: the water circulation device is further arranged on the support and comprises a water inlet pipe, a water outlet pipe and a water pump, the water inlet pipe is communicated with the collection box, the water outlet pipe is communicated with a container located at the top of the support, the water pump is connected with the water inlet pipe and the water outlet pipe, and the water pump is fixedly connected with the support.

6. A siphon experiment demonstration apparatus according to claim 2, characterised in that: the container is a transparent container, the collecting box is a transparent collecting box, and the straw is a transparent straw.

7. A siphon experiment demonstration apparatus according to claim 1, characterised in that: the holder is formed by stacking a plurality of containers.

8. A siphon experiment demonstration apparatus according to claim 1, characterised in that: the first end of the straw penetrates through the side wall of the container positioned above and extends into the container, and the second end of the straw extends into the container below from the opening at the top of the container positioned below.