Water pump experiment teaching device and use method

Abstract

The invention relates to a water pump experiment teaching device and a use method, and relates to the technical field of teaching equipment, the device comprises a transparent silo, a needle cylinder piston, a one-way valve group, an air exhaust and inflation pipe and a water outlet pipe, the transparent silo is provided with at least three chambers from top to bottom, a one-way valve set which can only be opened upwards is arranged between every two adjacent cavities in the vertical direction, the cavity located in the middle is connected with an air exhaust and inflation pipe, the air exhaust and inflation pipe is provided with a needle cylinder piston in a matched mode, the cavity located at the top end is provided with a water outlet pipe, and the bottom of the cavity located at the bottom end is provided with a water inlet. According to the water pump experiment teaching device, by adopting transparent materials and simple assemblies, the cost is reduced, students can visually observe and understand the working principle of a piston type water pump, and the water pump experiment teaching device has high teaching value and environmental protection significance.

Description

Technical Field

[0001] The invention belongs to the technical field of teaching equipment, and in particular relates to a water pump experimental teaching device and a use method thereof. Background Art

[0002] Existing piston pump teaching models are mostly made of opaque materials, so students cannot directly observe the working state of the internal valves and find it difficult to understand their working principles. In addition, the components of existing models are mostly made of special parts, which are costly and do not conform to the concept of green environmental protection.

[0003] Therefore, how to provide a water pump experimental teaching device and a method of use is a technical problem that those skilled in the art need to solve urgently. Summary of the invention

[0004] Aiming at the defects of the existing experimental devices, a water pump experimental teaching device and its use method are proposed. By using transparent materials such as transparent plastic bottles as the main body and combining spherical components with moderate density such as bottle caps with holes and glass beads as valves, students can clearly and intuitively observe the working status of the valve, so as to better understand and master the working principle of the piston water pump. Moreover, the product components are derived from life, which helps students establish a green and environmentally friendly life concept.

[0005] In order to solve the above technical problems, the present invention includes the following technical solutions:

[0006] A water pump experimental teaching device comprises a transparent silo, a syringe piston, a one-way valve group, an air suction and inflation pipe and a water outlet pipe, wherein the transparent silo is provided with at least three chambers from top to bottom, a one-way valve group which can only be opened upward is provided between two vertically adjacent chambers, the chamber in the middle is connected to the air suction and inflation pipe, the air suction and inflation pipe is equipped with the syringe piston, the chamber at the top end is provided with a water outlet pipe, and the bottom of the chamber at the bottom end is provided with a water inlet.

[0007] Furthermore, the transparent silo is made of a transparent plastic bottle or an acrylic bottle. The chambers of the transparent silo can be fixed and connected by pressing without additional connectors.

[0008] Furthermore, the one-way valve assembly comprises a bottle cap with a hole and a spherical component.

[0009] Furthermore, in order to facilitate material acquisition and save costs, the spherical components are glass beads.

[0010] Furthermore, the water outlet pipe and the air suction and inflation pipe are connected to the transparent silo by hot melt adhesive or special buckles.

[0011] Furthermore, the air pressure difference formed by the push-pull operation of the syringe piston draws water from a low place to a high place.

[0012] Furthermore, water enters through the water inlet at the bottom of the chamber at the bottom end, and the flow direction is controlled by the one-way valve group at the top of the chamber at the bottom end.

[0013] The present invention also provides a method for using the water pumping experiment teaching device, and provides the water pumping experiment teaching device for standby use. The method for using the water pumping experiment teaching device includes:

[0014] When the syringe piston is pulled outward, the air pressure in the middle chamber decreases, and the one-way valve group above it is closed under the action of atmospheric pressure. The atmospheric pressure pushes water from the one-way valve group at the top of the chamber at the bottom into the middle chamber;

[0015] When the syringe piston is pushed inward, the one-way valve group at the top of the chamber at the bottom is closed by the water flow in the chamber above it, and at the same time, the one-way valve group at the top of the chamber in the middle is opened, and water enters above the one-way valve group at the top of the chamber in the middle.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] The present invention provides a water pump experimental teaching device, comprising a transparent silo, a syringe piston, a one-way valve group, an air suction and inflation pipe and a water outlet pipe. The transparent silo is provided with at least three chambers from top to bottom, a one-way valve group that can only be opened upward is provided between two vertically adjacent chambers, the chamber located in the middle is connected to the air suction and inflation pipe, the air suction and inflation pipe is equipped with a syringe piston, the chamber located at the top is provided with a water outlet pipe, and the bottom of the chamber located at the bottom is provided with a water inlet. The water pump experimental teaching device, by adopting transparent materials and simple components, not only reduces the cost, but also enables students to intuitively observe and understand the working principle of the piston water pump, and has high teaching value and environmental protection significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the structure of a water pump experimental teaching device according to an embodiment of the present invention.

[0019] In the figure:

[0020] 1-water outlet pipe, 2-chamber at the top, 3-spherical component in the first one-way valve group, 4-hole in the first one-way valve group, 5-chamber at the middle, 6-spherical component in the second one-way valve group, 7-hole in the second one-way valve group, 8-chamber at the bottom, 9-vacuum and inflation tube, 10-syringe piston. DETAILED DESCRIPTION

[0021] The following is a further detailed description of a pumping machine experimental teaching device and a method of use provided by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the accompanying drawings, but this cannot be a limitation of the technical solution of the present invention.

[0022] Embodiment 1

[0023] Combine the following Figure 1 , and detailed description of the structural composition of the water pump experimental teaching device.

[0024] A water pump experimental teaching device includes a transparent silo, a syringe piston 10, a one-way valve group, an air suction and inflation pipe 9, and a water outlet pipe 1. The transparent silo is provided with at least three chambers from top to bottom, such as a chamber 2 at the top, a chamber 5 at the middle, and a chamber 8 at the bottom. A one-way valve group that can only be opened upward is provided between two vertically adjacent chambers. A first one-way valve group is provided between the chamber 2 at the top and the chamber 5 at the middle, and the first one-way valve group includes a spherical component 3 in the first one-way valve group and a hole 4 in the first one-way valve group. A second one-way valve group is provided between the chamber 5 at the middle and the chamber 8 at the bottom, and the second one-way valve group includes a spherical component 6 in the second one-way valve group and a hole 7 in the second one-way valve group. The chamber 5 at the middle is connected to the air suction and inflation pipe 9, and the air suction and inflation pipe 9 is equipped with a syringe piston 10. The chamber 2 at the top is provided with a water outlet pipe 1, and the bottom of the chamber 8 at the bottom is provided with a water inlet.

[0025] In this embodiment, more preferably, the transparent silo is made of a transparent plastic bottle or an acrylic bottle. The chambers of the transparent silo can be fixed and connected by pressing without additional connectors.

[0026] In this embodiment, more preferably, the one-way valve assembly includes a bottle cap with a hole and a spherical component.

[0027] In this embodiment, in order to facilitate material acquisition and save costs, the spherical components are glass beads.

[0028] In this embodiment, the water outlet pipe 1 and the air suction and inflation pipe 9 are connected to the transparent silo by hot melt adhesive or special buckles.

[0029] In this embodiment, the air pressure difference formed by the push-pull operation of the syringe piston 10 draws water from a low place to a high place.

[0030] In this embodiment, water enters through the bottom water inlet of the chamber 8 at the bottom end, and the flow direction is controlled by the one-way valve group at the top of the chamber 8 at the bottom end.

[0031] Please continue to refer to Figure 1 This embodiment also provides a method for using the water pumping experimental teaching device, and provides the water pumping experimental teaching device for standby use. The method includes:

[0032] When the syringe piston 10 is pulled outward, the air pressure in the middle chamber 5 decreases, and the one-way valve group above it is closed under the action of atmospheric pressure, that is, the spherical member 3 in the first one-way valve group blocks the hole 4 in the first one-way valve group, and the atmospheric pressure pushes water from the one-way valve group at the top of the chamber 8 at the bottom into the middle chamber 5;

[0033] When the syringe piston 10 is pushed inward, the one-way valve group at the top of the chamber 8 at the bottom is closed under the action of the water flow in the chamber above it, that is, water opens the spherical component 6 in the second one-way valve group through the hole 7 in the second one-way valve group and enters the chamber 5 in the middle. At the same time, the one-way valve group at the top of the chamber 5 in the middle opens, and water enters the top of the one-way valve group at the top of the chamber in the middle.

[0034] The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. The above embodiments only express several embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A water pump experimental teaching device, characterized in that: It includes a transparent silo, a syringe piston, a one-way valve group, an air suction and inflation pipe and a water outlet pipe. The transparent silo is provided with at least three chambers from top to bottom, a one-way valve group that can only be opened upward is provided between two vertically adjacent chambers, the chamber in the middle is connected to the air suction and inflation pipe, the air suction and inflation pipe is equipped with the syringe piston, the chamber at the top is provided with a water outlet pipe, and the bottom of the chamber at the bottom is provided with a water inlet.

2. The pumping machine experimental teaching device according to claim 1 is characterized in that: The transparent silo is made of transparent plastic bottles or acrylic bottles.

3. The pumping machine experimental teaching device according to claim 1 is characterized in that: The one-way valve assembly comprises a bottle cap with a hole and a spherical component.

4. The water pump experimental teaching device according to claim 3, characterized in that: The spherical members are glass beads.

5. The water pump experimental teaching device according to claim 1, characterized in that: The water outlet pipe and the air suction and inflation pipe are connected to the transparent silo by hot melt adhesive or special buckles.

6. The water pump experimental teaching device according to claim 1, characterized in that: The air pressure difference formed by the push-pull operation of the syringe piston draws water from a low place to a high place.

7. The water pump experimental teaching device according to claim 1, characterized in that: Water enters through the water inlet at the bottom of the chamber, and the flow direction is controlled by a one-way valve group at the top of the chamber at the bottom.

8. The method for using the water pump experimental teaching device according to any one of claims 1 to 7, characterized in that: The pumping machine experimental teaching device is provided as a standby device, and the method of using the device includes: When the syringe piston is pulled outward, the air pressure in the middle chamber decreases, and the one-way valve group above it is closed under the action of atmospheric pressure. The atmospheric pressure pushes water from the one-way valve group at the top of the chamber at the bottom into the middle chamber; When the syringe piston is pushed inward, the one-way valve group at the top of the chamber at the bottom is closed by the water flow in the chamber above it, and at the same time, the one-way valve group at the top of the chamber in the middle is opened, and water enters above the one-way valve group at the top of the chamber in the middle.

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