CN2326949Y - Pressure indicator - Google Patents

Abstract

The utility model relates to a pressure indicator, comprising a pedestal, a pedestal body, a diaphragm, a plunger piston, an elastic element and a swing element, wherein, the surrounding wall of the pedestal body is provided with a viewing hole, the bottom of the pedestal body is connected to the pedestal, the circumference of the diaphragm is arranged between the pedestal and the pedestal body in an air-tight method, the plunger piston is arranged in the pedestal body and can move up and down, the plug part of the plunger piston is tight contacted with the diaphragm, the elastic element is elastically butted on the plug part of the plunger piston, and the swing element is provided with a body part and an indicating part which is connected with the body part. The swing element is arranged in the space of the pedestal body, which causes the indicating part to move up and down; the indicating part is corresponding to the viewing hole; the swing element is supported through the plunger piston to change the position of the indicating part.

Description

Pressure indicator

The utility model is a device of detecting hydrodynamic pressure about a kind of, detailed is meant a kind of pressure indicator.

Press, known to the skill of just going ahead of the rest, in fluid machinery or fluid circuit, whether there is fluid to exist for detecting, all be to be provided with tensimeter, whether there is fluid to exist by the reading on the tensimeter in the pipeline to detect, yet the reading on the tensimeter, scale and pointer are all quite tiny, when the reading of range estimation on the tensimeter and inconvenient, and in many occasions, user or operator do not need to understand force value, need only know that whether having fluid to exist in the pipeline gets final product, the phenomenon that manometric difficult sight is looked becomes the inconvenience on a kind of the use on the contrary.

Fundamental purpose of the present utility model is to provide a kind of pressure indicator, the existence that obtains whether having in the pipeline fluid that it can be directly, understand.

Another purpose of the present utility model is to provide a kind of pressure indicator, and it can not cause the inconvenience in the observation.

A kind of pressure indicator of the utility model is characterized in that, includes: a base in order to the communication of fluid path;

One has the pedestal in a space in inside; Be to be provided with an observation hole on the perisporium of pedestal, be communicated with this space; This pedestal bottom is to be connected in this base; The one, be the barrier film of a soft object, its periphery is to be located between this base and this pedestal in airtight mode; One plunger has the post portion that a piston part and is fixedly arranged on this piston part, and this plunger is to be located in the space of this pedestal in this post portion mode up, but and upper and lower displacement, this piston part is to paste to touch in this barrier film; One flexible member is located in the space of this pedestal, and elastic top is held in the piston part of this plunger; One swing component has the whole body portion; One articulated section is to be located at this body portion; One sign portion also is located at this body portion; This swing component is to be hubbed in the space of this pedestal with this articulated section, but makes this sign portion upper and lower displacement, this sign portion and corresponding to this observation hole; This swing component is to be positioned at this post portion top, held by this post portion, to change the position of this sign portion; Wherein: this pedestal more includes: a dividing plate is to be located in this pedestal volume inside, and pedestal inside is separated into a upper chamber and a lower chamber, and a perforation is to be located at this dividing plate; This barrier film, plunger and flexible member are to be located in this lower chamber, and this post portion is extended through this upper chamber from this perforation; This swing component is to be located in this upper chamber; This observation hole is a perisporium of being located at this upper chamber; More include: a loam cake, its side face are to establish convex lens, and this loam cake is to be covered on this pedestal top, and these convex lens are to be right against this observation hole; Other includes: one second flexible member, and be to be located in this pedestal volume inside, and be held in this swing component, make this swing component keep moving toward this post position; Wherein: this articulated section is to be located at this body portion one end; This sign portion is located at this body portion other end, and this sign portion one has the lamellar body of predetermined arc length, is predetermined angle with this body portion; This swing component is to be hubbed in this pedestal with this pivoting part, and to articulate position be fulcrum and angular displacement and be able to it; Wherein: be to establish one to make the airtight O shape ring of maintenance between this post portion and this perforation in this perforation; Wherein: the bottom of this base is to establish a junction, is to have a through hole in this connecting portion.

Be the effect that can further understand the purpose of this utility model, feature and be reached, below lift preferred embodiment of the present utility model now, and after conjunction with figs. is described in more detail in, wherein, being arranged to of accompanying drawing:

Fig. 1 is the sectional view of the utility model one preferred embodiment, and shows stress-free state.

Fig. 2 generally is same as Fig. 1, shows the state when being stressed start.

Fig. 3 is the sectional view of the another preferred embodiment of the utility model.

Fig. 4 is another user mode of the present utility model.

At first see also Fig. 1, pressure indicator 10 provided by the utility model is to include:

One base 20 can be the body of a utensil that flows for fluid, and also or comparatively simple structure as shown in the figure, this base is in order to be communicated with the fluid passage.If this base is the body for a utensil, then its inside has the fluid passage naturally; If this base 20 is as shown in the figure, then must establish a connecting portion 24 with through hole 22 in addition, to connect fluid passage.

One pedestal 30 is the objects that all are opening for a top, has a space in inside; One dividing plate 32 is separated into a upper chamber 34 and a lower chamber 36 with pedestal 30 volume inside, on this dividing plate 32 and establish a perforation 38 and be communicated with these two rooms 34,36.In addition, this pedestal 30 is to be provided with an observation hole 35 in the perisporium of this upper chamber 34.These pedestal 30 bottoms are to be fixed in this base 20 in the mode that is spirally connected or other are equivalent.

One barrier film 40 is to be the rubber material, and its periphery is located between this base 20 and this pedestal 30, makes between this base and this pedestal to keep airtight conditions.This barrier film 40 can be subjected to this with fluid passage that this base 20 is communicated with in the start of fluid institute.

One plunger 50, have a piston part 52 and and be fixedly arranged on the axial post portion 54 in this piston part 52, this plunger 50 is to be located in the lower chamber 36 of this pedestal 30, but and upper and lower displacement, this piston part 52 is to paste to touch in this barrier film 40, and the free end of this post portion 54 then is extended through this upper chamber 34 from this perforation 38.

One flexible member 55 is located at this lower chamber 36, and the one end also is held in the piston part 52 of this plunger 50, and its elastic force is to make this barrier film 40 and this plunger 50 in not being subjected to external force to do the time spent, keeps the state toward these base 20 displacements.

One O shape ring 56 is located in this perforation 38, in order to airtight perforation 38 and this post portion 54 of being somebody's turn to do, prevents the airtight measure that fluid leaks as second road.

One swing component 60 has the auricle shape articulated section 64 that the whole body portion 62, two is located at this body portion one end, and a sign portion 66 that is located at these body portion 62 other ends.In this preferred embodiment, this sign portion 66 one has the lamellar body of predetermined arc length, is predetermined angle with this body portion 62, and the outer peripheral face of its arc also scribbles red the sign, as eye-catching usefulness.This swing component 60 is to be located at this upper chamber 34, is hubbed at this articulated section 64 with a latch 67, makes that articulating the position with it is that fulcrum is swung.The body portion 62 of this swing component 60 must be held by this post portion 54, and this sign portion 66 is corresponding to this observation hole 35.

One loam cake 70 is installing one convex lens 72 in the default breach of its side face, and this loam cake 70 is to be covered on this pedestal 30 tops, and these convex lens 72 are to be right against this observation hole 35, when seeing through this convex lens 72 and seeing this sign portion 66 toward in, is the effect with amplification.

This preferred embodiment is that the connecting portion 24 of this base 20 is connected on the fluid pipeline 80 (shown in Fig. 1 imaginary line) when using, so that the pressure of fluid must see through this through hole 22 and pass in this barrier film 40.

When having work purpose fluid in the pipeline 80, that is the hydrodynamic pressure in the pipeline is not during greater than an atmospheric pressure, and this barrier film 40 promptly is not subjected to the air pressure institute start in the pipeline.Therefore, this flexible member 55 be direction with accompanying drawing with this plunger 50 and the 40 downward ejections of this barrier film, make barrier film and plunger be moved to the position of lower dead center shown in Figure 1 downwards.At this moment, it is shorter that the post portion 54 of this plunger 50 convexedly stretches in the length of this upper chamber 34, this swing component 60 is not upwards held by this post portion 54, and gravity falls within lower position naturally down, this sign portion 66 also just is positioned at this observation hole 35 dead asterns, the user from this convex lens 72 toward interior prestiges to this observation hole 35, can see this eye-catching sign portion 66, because red effect with caution, so after seeing this sign portion 66, be clearly to inform not had the purpose fluid in user's pipeline, or the quantity not sufficient of purpose fluid.

Otherwise, when having the purpose fluid in the pipeline, promptly having bigger air pressure, this air pressure is to see through this through hole 22 and this barrier film 40 of ejection, barrier film 40 and plunger 50 are stressed and upwards be moved to top dead centre shown in Figure 2, and compress this flexible member 55.This post portion 54 is promptly because of moving on the plunger 50, and in this upper chamber 34, upwards protrude out long length, and the body portion 62 of this swing component 60 is upwards held, make swing component 60 produce beat, this sign portion 66 and the higher position of angular displacement to, and leave this observation hole 35.This moment, the user hoped when this observation hole, can't see the sign portion 66 of this redness, showed the fluid abundance, need not replenish.

Fluid in pipeline is reduced to certain amount, and when making its pressure can't make progress barrier film 40 and plunger 50, this flexible member 55 is about to this barrier film and the downward ejection of plunger in the position of Fig. 1, and the fluid deficiency with in the caution user pipeline has to be replaced or additional.

In first preferred embodiment, this connecting portion 24 is joints, in order to be connected in fluid circuit.In second preferred embodiment shown in Figure 3, be with the difference of first preferred embodiment: this connecting portion 34 is internal threads, has this through hole 22 in this internal thread.

In above-mentioned two preferred embodiments, this pressure indicator 10 is to install use in normal mode.In the preferred embodiment shown in Figure 4, show that then this indicator 10 is to install with inverse manner, at this moment, in this upper chamber 34, must install one second flexible member 85 separately, one end of this flexible member 85 is that elastic top is held in this swing component 60, with so that the state that this swing component 60 keeps towards these post portion 54 displacements, so that when in the pipeline during no fluid, this sign portion 66 can overcome the state of gravity fall, and correct observation hole 35 rears that are displaced to.

Pressure indicator provided by the utility model has following effect:

One, in using, see when looking this pressure indicator, need only by whether can seeing this marking part, Get final product the clear and definite existence whether fluid is arranged in the pipeline of learning, the indication that provides is straightforward.

Two, design of the present utility model is to make the sign that whether has force value in the pipeline be easy to observation, Do not have the situation that is difficult to differentiate, so can improve the convenience in the use.

Three, the distance of fall of this marking part all is by the start of the institute of the air pressure in the pipeline, by this sign The number of the area that section manifests in observation hole can show the fluid storage in the fluid circuit.

Four, the demonstration of swing component of the present utility model is the person's that is conformable to the normal operation custom, that is, When the state of the flow " deficiency " of fluid or " nothing ", this red marking part just can show, Redness has warning function, can cause that the user notes. When Fluid Volume was sufficient, this marking part was not namely Can show.

Five, swing component of the present utility model is to utilize the design of balance pivot in a side, utilizes gravity to come restoring mechanism, and fiduciary level and simplification improve.Moreover, utilize the relation of lever ratio, can reach the effect of little stroke, big swing, whether show with obvious differentiation.

Six, structure of the present utility model can be used as second road protection of airtight effect when if this O shape ring is set, and utilizes little O shape to encircle the leakage that breakage caused that prevents big diaphragm, increases security.

Seven, the utility model utilization increases the area of this barrier film, can increase perceptibility, has the effect of amplification, can detect in order to carry out minute-pressure, detects the fluid under the minimum pressure.When the utility model detects as minute-pressure, because the air pressure of micro pressure gas is little, be difficult for the situation that leaks, so this O shape ring need not be set.

Eight, utilize the adjustment of the elastic force of this flexible member, can change the required detecting point of detecting value.

Nine, the utility model provides an easy mechanism, to reach practical effect, is a product that does not need tool professional training to use, and is a manometric substitute, and security is also than the pressure gauge height.

Claims (7)

1. a pressure indicator is characterized in that, includes:

One base in order to the communication of fluid path;

One has the pedestal in a space in inside; Be to be provided with an observation port on the perisporium of pedestal, be communicated with this space; This pedestal bottom is to be connected in this base;

The one, be the barrier film of a soft object, its periphery is to be located between this base and this pedestal in airtight mode;

One plunger has the post portion that a piston part and is fixedly arranged on this piston part, and this plunger is to be located in the space of this pedestal in this post portion mode up, but and upper and lower displacement, this piston part is to paste to touch in this barrier film;

One flexible member is located in the space of this pedestal, and elastic top is held in the piston part of this plunger;

One swing component has the whole body portion; One articulated section is to be located at this body portion; One sign portion also is located at this body portion; This swing component is to be hubbed in the space of this pedestal with this articulated section, but makes this sign portion upper and lower displacement, this sign portion and corresponding to this observation hole; This swing component is to be positioned at this post portion top, held by this post portion, to change the position of this sign portion.

2. pressure indicator as claimed in claim 1 is characterized in that, wherein: this pedestal more includes: a dividing plate is to be located in this pedestal volume inside, and pedestal inside is separated into a upper chamber and a lower chamber, and a perforation is to be located at this dividing plate; This barrier film, plunger and flexible member are to be located in this lower chamber, and this post portion is extended through this upper chamber from this perforation; This swing component is to be located in this upper chamber; This observation hole is a perisporium of being located at this upper chamber.

3. pressure indicator as claimed in claim 1 or 2 is characterized in that, more includes: a loam cake, its side face are to establish convex lens, and this loam cake is to be covered on this pedestal top, and these convex lens are to be right against this observation hole.

4. pressure indicator as claimed in claim 1 is characterized in that other includes: one second flexible member, and be to be located in this pedestal volume inside, and be held in this swing component, make this swing component keep moving toward this post position.

5. pressure indicator as claimed in claim 1 is characterized in that, wherein: this articulated section is to be located at this body portion one end; This sign portion is located at this body portion other end, and this sign portion one has the lamellar body of predetermined arc length, is predetermined angle with this body portion; This swing component is to be hubbed in this pedestal with this pivoting part, and to articulate position be fulcrum and angular displacement and be able to it.

6. pressure indicator as claimed in claim 2 is characterized in that, wherein: be to establish one to make the airtight O shape ring of maintenance between this post portion and this perforation in this perforation.

7. pressure indicator as claimed in claim 1 is characterized in that, wherein: the bottom of this base is to establish a junction, is to have a through hole in this connecting portion.

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