CN210574558U

CN210574558U - Demonstration device for liquid acting on bottom surface of container

Info

Publication number: CN210574558U
Application number: CN201920622168.4U
Authority: CN
Inventors: 郝杰
Original assignee: Nanjing Polytechnic Institute
Current assignee: Nanjing Polytechnic Institute
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-05-19
Anticipated expiration: 2029-05-05

Abstract

A demonstration device for demonstrating the action of liquid on the bottom surface of a container comprises a transparent thin hose with a funnel, a funnel support, a telescopic rod with a scale mark, a support annular base, a hose connector, an upper container sealing cover, a container, an electronic pressure meter, an electronic scale, a lower container sealing cover, a flat piston, a mobile phone and a scale mark, wherein the funnel support is sleeved at the top end of the telescopic rod and is inserted and hung on the funnel on the transparent thin hose with the funnel, the upper container sealing cover is fixed at the upper middle part of the container, the support annular base is arranged on the upper container sealing cover, the bottom end of the telescopic rod is fixed on the support annular base, the other end of the transparent thin hose with the funnel is inserted and hung on the hose connector on the upper container sealing cover, the flat piston is arranged in the container, the electronic pressure meter is arranged between the flat piston and the lower container sealing cover, the lower container sealing cover is, the students can observe the display data of the electronic pressure gauge and the electronic scale in real time through the network.

Description

Demonstration device for liquid acting on bottom surface of container

Technical Field

The utility model relates to a liquid is to presentation device of container bottom surface effect belongs to experiment teaching technical field.

Background

The patent of 'liquid is to pressure intensity presentation device of household utensils bottom surface' with application number 2019103532760, let the student realize clearly, liquid is to the pressure size of household utensils bottom surface, can not simply think equal to the gravity of the liquid that holds in the household utensils, deepen difference and the contact to pressure, pressure and gravity, based on 'liquid is to the pressure intensity presentation device of household utensils bottom surface', reapply cell-phone conveying video image function, let the student observe the electronic pressure gauge in real time through the network, the display data of electronic scale, this has not only improved the visibility, still help the student to participate in the interdynamic actively, improve classroom teaching effect.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: a flat piston is arranged in a transparent vessel, an upper sealing cover of the vessel is fixed, an electronic pressure gauge is arranged between the flat piston and a lower sealing cover of the vessel, the lower sealing cover of the vessel is screwed on a lower port of the vessel, the vessel is arranged on an electronic scale, a transparent thin hose with a funnel is inserted into a hose connector on the upper sealing cover of the vessel, and under the condition that the gravity of the whole device is not changed, the reading of the electronic pressure gauge can be seen to change along with the change of the height of the funnel.

The utility model provides a technical scheme that its technical problem adopted is: the utility model discloses by take transparent thin hose of funnel, funnel support, take scale mark telescopic link, support ring base, hose connection, household utensils on closing cap, household utensils, electron pressure meter, electronic scale, household utensils under closing cap, dull and stereotyped piston, cell-phone, scale mark constitute characterized by: the one end of funnel support is closed ring, and the suit takes scale mark telescopic link top, the other end is not closed ring, be used for inserting the funnel of hanging on taking the transparent thin hose of funnel, be carved with the scale mark on the household utensils, the closing cap is fixed at the last middle part of household utensils on the household utensils, support ring base lays on the closing cap on the household utensils, take scale mark telescopic link bottom mounting on support ring base, take the transparent thin hose's of funnel other end to peg graft on the hose interface on the closing cap on the household utensils, dull and stereotyped piston is arranged in the household utensils, electron pressure gauge lays between the closing cap under dull and stereotyped piston and the household utensils, the closing cap connects under the household utensils soon under the household utensils on the port, the closing cap presses on the electronic scale under the household utensils, whole device is arranged in on the electronic scale promptly, with cell-phone conveying video image function.

The vessel is characterized in that: the household utensils are barrel-shaped, scale marks are carved on the side face of the household utensils, zero scale lines of the scale marks are level with the lower plane of the upper sealing cover of the household utensils, the upper sealing cover of the household utensils is fixedly sealed on the upper middle part of the household utensils, a cylindrical concave space is formed from the cover face of the upper sealing cover of the household utensils to the upper opening end of the household utensils, the lower sealing cover of the household utensils is concave, internal threads are formed on the inner side of the cover opening of the lower sealing cover of the household utensils, external threads are formed on the outer side of the lower.

The flat piston is characterized in that: the flat piston is made of transparent material, and the diameter of the flat piston is suitable for ensuring that the flat piston is matched with the inner wall of the vessel barrel and liquid is not leaked out.

The electronic pressure gauge is characterized in that: the electronic pressure gauge is in a flat circular truncated cone shape.

Due to the adoption of the technical scheme, the utility model has the advantages and positive effect be: under the condition that the gravity of the whole device is not changed, the reading of the electronic pressure gauge can be seen to change along with the change of the height of the funnel, namely the pressure and the pressure of the liquid on the bottom surface of the vessel change along with the height of the liquid level of the vessel, and the device has the advantages of high demonstration visibility, simple structure, economy and practicability.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view showing the structural connection, cross section and enlargement of the lower sealing cover, the plate piston and the electronic pressure gauge of the vessel.

Fig. 3 is an enlarged schematic view of the structural connection of the transparent thin hose with the funnel, the funnel support, the telescopic rod with the scale mark and the annular base of the support of the utility model.

In the figure, 1, a transparent thin hose with a funnel, 2, a funnel support, 3, a telescopic rod with a scale mark, 4, a support annular base, 5, a hose connector, 6, a vessel upper sealing cover, 7, a vessel, 8, an electronic pressure gauge, 9, an electronic scale, 10, a vessel lower sealing cover, 11, a flat piston, 12, a scale mark and 13, a mobile phone are arranged.

Detailed Description

In the figures 1, 2 and 3, one end of a funnel support 2 is a closed ring, and is sleeved on the top end of a telescopic rod 3 with a scale mark, the other end is an unclosed ring, and is used for inserting and hanging a funnel on a transparent thin hose 1 with the funnel, a scale mark 12 is carved on a vessel 7, an upper vessel sealing cover 6 is fixed on the upper middle part of the vessel 7, a support annular base 4 is arranged on the upper vessel sealing cover 6, the bottom end of the telescopic rod 3 with the scale mark is fixed on the support annular base 4, the other end of the transparent thin hose 1 with the funnel is inserted on a hose connector 5 on the upper vessel sealing cover 6, a flat piston 11 is arranged in the vessel 7, an electronic pressure gauge 8 is arranged between the flat piston 11 and a lower vessel sealing cover 10, the lower vessel sealing cover 10 is screwed on the lower port of the vessel 7, the lower vessel sealing cover 10 is pressed on an electronic scale 9, a mobile phone 13 is used for transmitting a, Display data of the electronic scale 9.

The utility model discloses relevant part and instructions: and (3) putting and zeroing of the electronic pressure gauge: the flat piston is put into the vessel from the lower port of the vessel, the electronic pressure gauge is clamped under the flat piston, namely, right above the lower sealing cover of the vessel, the lower sealing cover of the vessel is screwed on the lower port of the vessel and pushes the flat piston to move upwards at the same time, and the lower sealing cover of the vessel slowly retracts until the reading of the electronic pressure gauge is zero; the demonstration that the pressure intensity of liquid to the bottom surface of a vessel is increased along with the increase of the height of the liquid level is realized by stretching a plurality of telescopic rods with scale marks, a funnel-containing transparent thin hose which is horizontally arranged in a rotating mode in an original disc is gradually straightened, the liquid level is increased, the pressure of a piston to an electronic pressure gauge is gradually increased, the reading of an electronic scale is kept unchanged, the pressure of the liquid to the bottom surface of the vessel is shown to be two different forces from the weight (gravity) of a device, even if the weight of the vessel is not considered, the pressure intensity cannot be simply considered to be equal, and specific; the zero-height scale line with the scale mark telescopic rod is also level with the lower plane of the upper seal cover of the vessel, so that the thickness of the upper seal cover of the vessel and the thickness of the annular base of the bracket are considered when the lowest scribing line of the telescopic rod is scribed.

Claims

1. The demonstration device of liquid to container bottom surface effect comprises taking transparent thin hose of funnel, funnel support, taking scale mark telescopic link, support ring base, hose connector, household utensils upper cover, household utensils, electron pressure meter, electronic scale, household utensils lower cover, dull and stereotyped piston, cell-phone, scale mark, characterized by: one end of a funnel support (2) is a closed ring, the funnel support is sleeved at the top end of a telescopic rod (3) with a scale mark, the other end of the funnel support is an unclosed ring and used for being inserted and hung with a funnel on a transparent thin hose (1) with the funnel, the side surface of a vessel (7) is carved with the scale mark (12), an upper seal cover (6) of the vessel is fixed at the upper middle part of the vessel (7), a support ring base (4) is arranged on the upper seal cover (6) of the vessel, the bottom end of the telescopic rod (3) with the scale mark is fixed on the support ring base (4), the other end of the transparent thin hose (1) with the funnel is inserted and connected on a hose interface (5) on the upper seal cover (6) of the vessel, a flat piston (11) is arranged in the vessel (7), an electronic pressure gauge (8) is arranged between the flat piston (11) and a lower seal cover (10) of the vessel, the lower seal cover (10) of the vessel is screwed on the, the mobile phone (13) is used for transmitting video images, and students can observe display data of the electronic pressure gauge (8) and the electronic scale (9) in real time through a network.

2. A demonstration device for the effects of a liquid on the base of a container as claimed in claim 1 wherein: the household utensils are characterized in that the household utensils (7) are barrel-shaped, scale marks (12) are carved on the side faces of the household utensils, an upper sealing cover (6) of the household utensils is fixedly sealed at the upper middle part of the household utensils (7), a cylindrical concave space is formed from the covering face of the upper sealing cover (6) of the household utensils to the upper opening end of the household utensils (7), a lower sealing cover (10) of the household utensils is concave, internal threads are formed on the inner side of a covering opening of the household utensils, external threads are formed on the outer side of the lower opening end of the household utensils (7), and the household.

3. A demonstration device for the effects of a liquid on the base of a container as claimed in claim 1 wherein: the flat piston (11) is made of transparent material, and the diameter of the flat piston is larger than the diameter of the flat piston so as to ensure that the flat piston (11) is matched with the inner wall of the round barrel of the vessel (7) and liquid is prevented from seeping out.