CN209708437U - A kind of small pressure gage containing balanced valve - Google Patents
A kind of small pressure gage containing balanced valve Download PDFInfo
- Publication number
- CN209708437U CN209708437U CN201920143136.6U CN201920143136U CN209708437U CN 209708437 U CN209708437 U CN 209708437U CN 201920143136 U CN201920143136 U CN 201920143136U CN 209708437 U CN209708437 U CN 209708437U
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- tube
- liquid level
- rubber hose
- lever
- small pressure
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of small pressure gage containing balanced valve, including measuring cup, rubber hose, U-tube and support base, the U-tube is fixed on support base, described rubber hose one end and an end of U-tube connect, eardrum is simultaneously put into measuring cup by support tube by other end installation eardrum, and the liquid level equilibrium valve being balanced by intake method to liquid level in U-tube is installed in the junction of the rubber hose and U-tube.The utility model can realize that air pressure is equal to external ambient air pressure in rubber hose, to quickly and easily realize the liquid level rebalancing in U-tube, avoids and carries out plug to the junction of rubber hose by the air inlet of liquid level equilibrium valve.
Description
Technical field
The utility model relates to a kind of small pressure gage containing balanced valve, belongs to middle and primary schools' experiment equipment technical field.
Background technique
In the liquid pressure experiment of junior physics course, traditional method is to be connect using U-tube with rubber hose, rubber
Glue hose other end connects eardrum and enters the measuring cup equipped with liquid.Changed by the height of U-tube both ends color water column, shows liquid
The variation of body pressure difference.
In actual experiment, since it is desired that injecting coloured liquid in U-tube, the eardrum at water surface sealing portion exists
There may be leakage after being used for multiple times, the interconnecting piece of rubber hose and U-tube after a number of uses there is also air leak case,
Cause U-tube in air can not balance liquid level.
So the teachers and students in liquid level pressure intensity testing need ceaselessly plug U-tube, to topple over color liquid, balance liquid level.
Cause the non-productive work in experiment many in this way, and is easy to damage experimental apparatus.It reveals if generated without being found, it will be straight
Connect influence experiment effect.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, providing a kind of small pressure containing balanced valve
Strong meter, can effectively avoid the non-productive work in experiment, protects to experimental apparatus, guarantee experiment effect.
The technical solution adopted in the utility model is such that
A kind of small pressure gage containing balanced valve, including measuring cup, rubber hose, U-tube and support base, the U-tube are solid
It is scheduled on support base, the end connection of described rubber hose one end and U-tube, other end installation eardrum simultaneously passes through support tube
Eardrum is put into measuring cup, the junction installation of the rubber hose and U-tube carries out liquid level in U-tube by intake method
The liquid level equilibrium valve of balance.
By adopting the above-described technical solution, the utility model can realize rubber hose by the air inlet of liquid level equilibrium valve
Interior air pressure is equal to external ambient air pressure, to quickly and easily realize the liquid level rebalancing in U-tube, avoids to rubber hose
Junction carry out plug.
Preferably, the liquid level equilibrium valve includes hard tube, a support arm is installed on the hard tube outer wall, on support arm
Portion's rotary type connects lever, and compression reset spring is installed in described lever one end, and reset spring is fixed on hard tube, the lever
The other end installs sealing element, also opens up stomata on the hard tube wall, no external force sealing element when on lever is blocked stomata, had
Sealing element is detached from stomata outward when pressed by external force lever further compression reseting spring.The effect of liquid level equilibrium valve is, in reality
Air leakage occurs during testing, in rubber hose to be caused not needing the company to rubber hose after liquid level is uneven in U-tube
The place of connecing carries out plug, and directly pressing lever compression reseting spring makes disengagement of seal member stomata that rubber hose can be realized
Interior air pressure is equal to external ambient air pressure, so that very convenient quickly carry out rebalancing to liquid level in U-tube.
Preferably, the reseting spring sleeve is on a positioning column, positioning column is fixedly mounted on hard tube outer wall, positioning
Column upper end passes through the strip-shaped hole on lever.The setting of positioning column can effectively prevent reset spring when compressed or reset when side
To deflecting, so that lever rotates in a plane always, to guarantee that sealing element can accurately be embedded into every time
Sealing is carried out in stomata.
Preferably, the support base corresponds to the scale of setting display two sides liquid level in position among U-tube at it
Ruler.Graduated scale and support base are integrated, scale is facilitated to read.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged drawing that the balanced valve for being is marked in Fig. 1.
Marked in the figure:
1 is support tube, and 2 be measuring cup, and 3 be eardrum, and 4 be rubber hose, and 5 be liquid level equilibrium valve, and 6 be U-tube, and 7 be support
Seat；
51 be hard tube, and 52 be sealing element, and 53 be stomata, and 54 be lever, and 55 be support arm, and 56 be positioning column, and 57 be bar shaped
Hole, 58 be reset spring.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
Embodiment:
As shown in Figure 1, a kind of small pressure gage containing balanced valve, including measuring cup 2, rubber hose 4, U-tube 6 and support base
7, the U-tube 6 is fixed on support base 7, and described 4 one end of rubber hose is connect with an end of U-tube 6, other end peace
Eardrum 3 is simultaneously put into measuring cup 2 by support tube 1 by dress eardrum 3, and the junction installation of the rubber hose 4 and U-tube 6 passes through
The liquid level equilibrium valve 5 that intake method is balanced liquid level in U-tube 6.
The liquid level equilibrium valve 5 installs a support arm 55 as shown in Fig. 2, including hard tube 51 on 51 outer wall of hard tube,
55 top rotary type of support arm connects lever 54, and compression reset spring 58 is installed in described 54 one end of lever, and reset spring 58 is solid
It is scheduled on hard tube 51,54 other end of lever installs sealing element 52, stomata 53 is also opened up on 51 wall of hard tube, without outer masterpiece
Sealing element 52 blocks stomata 53 when on lever 54, sealing element when having pressed by external force 54 further compression reseting spring 58 of lever
52 are detached from stomata 53 outward.
58 sets of the reset spring on a positioning column 56, positioning column 56 is fixedly mounted on 51 outer wall of hard tube, positioning
56 upper end of column passes through the strip-shaped hole 57 on lever 54.
The support base 7 corresponds to the graduated scale of the intermediate position of U-tube 6 setting display two sides liquid level at it.
Claims (4)
1. a kind of small pressure gage containing balanced valve, including measuring cup (2), rubber hose (4), U-tube (6) and support base (7), institute
It states U-tube (6) to be fixed on support base (7), described rubber hose (4) one end is connect with an end of U-tube (6), another
Eardrum (3) is simultaneously put into measuring cup (2) by support tube (1) by end installation eardrum (3), it is characterised in that: the rubber hose (4)
The liquid level equilibrium valve (5) being balanced by intake method to U-tube (6) interior liquid level is installed with the junction of U-tube (6).
2. a kind of small pressure gage containing balanced valve according to claim 1, it is characterised in that: the liquid level equilibrium valve
(5) include hard tube (51), a support arm (55), the connection of support arm (55) top rotary type are installed on hard tube (51) outer wall
Compression reset spring (58) are installed in lever (54), described lever (54) one end, and reset spring (58) is fixed on hard tube (51),
Lever (54) other end installs sealing element (52), also opens up stomata (53) on hard tube (51) wall, no external force exists
Sealing element (52) blocks stomata (53) when on lever (54), have pressed by external force lever (54) further compression reseting spring (58) when
Sealing element (52) is detached from stomata (53) outward.
3. a kind of small pressure gage containing balanced valve according to claim 2, it is characterised in that: the reset spring (58)
It covers on a positioning column (56), positioning column (56) is fixedly mounted on hard tube (51) outer wall, and positioning column (56) upper end passes through thick stick
Strip-shaped hole (57) on bar (54).
4. a kind of small pressure gage containing balanced valve according to claim 1,2 or 3, it is characterised in that: the support base
(7) in the graduated scale that it corresponds to the intermediate position setting display two sides liquid level of U-tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920143136.6U CN209708437U (en) | 2019-01-28 | 2019-01-28 | A kind of small pressure gage containing balanced valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920143136.6U CN209708437U (en) | 2019-01-28 | 2019-01-28 | A kind of small pressure gage containing balanced valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209708437U true CN209708437U (en) | 2019-11-29 |
Family
ID=68640611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920143136.6U Active CN209708437U (en) | 2019-01-28 | 2019-01-28 | A kind of small pressure gage containing balanced valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209708437U (en) |
-
2019
- 2019-01-28 CN CN201920143136.6U patent/CN209708437U/en active Active
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