CN2238431Y

CN2238431Y - Automatic exhaust type pressure gauge

Info

Publication number: CN2238431Y
Application number: CN 95220732
Authority: CN
Inventors: 黄添财
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-17
Filing date: 1995-08-17
Publication date: 1996-10-23
Anticipated expiration: 2005-08-17

Abstract

The utility model relates to an automatic exhaust type pressure gauge. The inner part and the lower part of a setting part provided with a hollow sleeve barrel are respectively provided with a control part whose lower part is provided with a gas storage part. The control part comprises a spring member and a detection chamber. The upper end of the spring member is abutted on the hollow sleeve barrel, and the lower end is abutted on the outlet of the detection chamber. The elastic force of the spring member is altered following the setting for the pressure limit of the setting part. The force for abutting on the outlet of the detection chamber is controlled. When the pressure exceeds, the pressure can be automatically released. The pressure can be stably kept within the range of setting pressure.

Description

But automatic vent tensimeter

But the utility model relates to a kind of automatic vent tensimeter, particularly relates to a kind ofly can adjusting pressure limit arbitrarily and setting the working pressure limit, but and discharges the automatic vent tensimeter that surpasses the unnecessary pressure of the set limit automatically.

In the plant produced manufacture process, often must be noted that the control of pressure, if pressure is too high, cause danger easily, gently then cause defective products, heavy then cause explosive incident, particularly the reactive tank in the chemical plant is more wanted the control of exactissima diligentia pressure.In addition, in daily life, also there are a lot of situations to must be noted that the control of pressure,,, cause the inconvenience in the use, even cause the danger of life if the inner gaseous tension that is filled is excessive as the tire pressure of doughnut, the ball pressure of basketball etc., as blow out etc.

The pressure gauge that uses mainly is to belong to unifunctional pressure survey at present, if it is excessive to want to take precautions against the interior pressure of operative installations, general all is to install the mode of safety valve additional, when working pressure oversteps the extreme limit, just unnecessary pressure is discharged to the external world by safety valve, this kind mode goes for the large-scale plants such as reactive tank in the picture chemical plant, but for then being suitable for as small articles such as doughnut or basketballs, so it is small articles can only be controlled according to the mode of range estimation or hand monitor pressures, very inconvenient.

But the purpose of this utility model is to provide a kind of automatic vent tensimeter, can adjust pressure limit arbitrarily and set the working pressure limit, and discharge the unnecessary pressure that surpasses the set limit automatically.

For achieving the above object, but the utility model proposes a kind of automatic vent tensimeter, it is characterized in that:

This tensimeter comprises a configuration part, a control part and a gas storage portion;

This configuration part is made of a setting bar, a pointer and a face, and this setting bar inside is provided with a hollow sleeve, and the wall place of this hollow sleeve is provided with first screw thread and a relief hole passage, and this pointer and face are located on this setting bar in regular turn;

This control part is by a bullet spare made from elastic material, a positioning body and a detecting chamber constitute, the lower end of this positioning body has a folder cage structure of clamping this bullet spare of location, the upper end is sleeved in the hollow sleeve of this configuration part, this detecting chamber comprises a hollow measuring chamber that has the hollow chamber to be measured of first fastener and be located at this upper end, chamber to be measured, the lower end of this bullet spare props up this measuring chamber upper end outlet, this measuring chamber edge wall is provided with second screw thread, this second screw thread connects airtight mutually with first screw thread of this hollow sleeve, and this bullet spare and positioning body are fixed on the inside of this hollow sleeve;

This gas storage portion comprises a hollow bottom shell body and the air chamber of receiving that is located at this hollow bottom shell body inside and has second fastener, this receives air chamber and be provided with a vent cap that is in communication with the outside, first fastener driving fit mutually of this second fastener and this control part, this control part and gas storage portion form one.

Wherein, this face is provided with a display part that shows pressure use present situation.

Wherein, this display part comprises a transparent tube with numerical value or mark and an elastic component that is located in this transparent tube, and this elastic component one end is fixed on an end of this transparent tube with screw, and the other end then is provided with a stops; This transparent tube is provided with a passage that joins with this air pressure duct of receiving air chamber near an end of this stops.

Wherein, the relief hole passage of this configuration part communicates with the external world.

Wherein, relief hole passage one end of this configuration part is provided with elasticity and ends portion, and the outlet of this relief hole passage is blocked by this elasticity portion of ending.

Wherein, the hollow sleeve lower end of this configuration part protrudes in the lower edge of this setting bar.

Wherein, the pointer of this configuration part and face are set in the lower edge that this hollow sleeve lower end protrudes in this setting bar.

Wherein, the bullet spare of this control part is shaped to volute spring moulding or horseshoe type moulding.

Wherein, the measuring chamber upper end open place of this control part is provided with one and accepts logical seat, and this upper shed of accepting logical seat is bigger than under shed, and under shed is provided with a through hole that passes straight through to this chamber to be measured.

Wherein, this shell fragment lower end is provided with a recessed cap in location, and this is located and is provided with a lock gas spare in the recessed cap, and this lock gas spare places this to accept logical seat, and closely seals the upper end outlet of this measuring chamber.

Wherein, the appearance of this lock gas spare is spheroid appearance, piston appearance or the appearance of inverted triangle cylinder.

Wherein, the bullet spare of this control part upper end is provided with two salient points, and this positioning body is fixed between two salient points.

Wherein, between the bullet spare of this control part and positioning body, be to articulate fixing with screw or rivet.

Wherein, this first fastener is to pin or coat the driving fit mutually of chimeric mode with screw locking, screw thread with this second fastener.

But automatic vent tensimeter of the present utility model, utilize the simple setting step that this sets bar of adjusting, just can adjust the distance between the outlet of this positioning body and measuring chamber, to adjust the elastic force of this bullet spare, control the pressure limit situation in the use, reach stable remaining on and set in the pressure limit, and manufacture the effect of simple and element lighting.

Below by most preferred embodiment and accompanying drawing but automatic vent tensimeter of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the decomposition assembling synoptic diagram of the utility model preferred embodiment.

Fig. 2 is the part synoptic diagram of configuration part in the utility model preferred embodiment.

Fig. 3 is the assembling diagrammatic cross-section of the utility model preferred embodiment.

Fig. 4 is the pressure release action synoptic diagram of the utility model preferred embodiment.

Fig. 5 is another preferred embodiment schematic perspective view of the utility model.

As shown in Figure 1, the utility model comprises a configuration part 10, a control part 20 and a gas storage portion 30.

As shown in Figure 1, this configuration part 10 comprises a setting bar 11, a pointer 12 and a face 13.

Cooperate shown in Figure 2, these setting bar 11 outer upper ends are provided with a torsional part 115, with convenient this setting bar 11 that rotates, set bar 11 inside and be provided with a hollow sleeve 110, the inner upper end of this hollow sleeve 110 is provided with a small-sized screens groove 113, and the wall place is provided with first screw thread 111 and a relief hole passage 112, this relief hole passage 112 communicates with the external world, and be provided with a vent 116 near an end of these hollow sleeve 110 inner spaces, this vent 116 is discharged these hollow sleeve 110 internal gas extraneous, this relief hole passage 112 is provided with an elasticity near an extraneous end and ends portion 114, it is that a tool spring function and an end are provided with detent plug that this elasticity is ended portion 114, the outlet of this vent 116 is blocked, avoid introduced contaminants or liquid to infiltrate, and cause the damage of body.The shape of this detent plug and material as long as it is just passable to prevent that introduced contaminants or liquid from infiltrating, can be piston-like, upside-down triangle shape, spherical shape etc. without limits, and the material of this detent plug can be iron and steel, plastic cement, glass etc.

This pointer 12 is the general pointer that uses, one end of this pointer 12 is provided with a pointer perforation 121, this setting bar 11 runs through this pointer perforation 121, and this pointer 12 is fixed on the setting bar 11, this pointer can be set with the rotation of setting bar 11 show the pressure limit value that will set.

This face 13 is inscription dishes that a portrayal has numerical value, the center is provided with a face perforation 131, this setting bar 11 runs through this face perforation 131, and this face 13 is fixed on the setting bar 11, and be positioned at the below of this pointer 12, this face 13 is for these pointer 12 indications, with the pressure limit value of determining to set.

In addition, can not infiltrate impurity, can install a perspective portion 14 additional by the external world in order to protect the utility model, the material of this perspective portion 14 without limits, so long as transparent material just can, as glass, clear plastic, acryl, PC etc., with PC material the best.

The mode that this pointer 12 and face 13 are fixed on this setting bar 11 without limits, for example can directly be sleeved on this setting bar 11 or and fix with welding manner, employed mode in also can embodiment, as shown in Figure 2, the lower end of this hollow sleeve 110 protrudes in the lower edge of this setting bar 11 slightly, this pointer 12 and face 13 are set in the lower edge that this protrudes in this setting bar 11 slightly, and make pointer 12 and face 13 be sandwiched in this outstanding lower edge.

As shown in Figure 1, this control part 20 comprises a bullet spare 21, a positioning body 22 and a detecting chamber 23.

This bullet spare 21 is made with resilient material, and shape is not particularly limited, as long as it is just passable to have vertical direction elastic force, as volute spring moulding, horseshoe type moulding etc., with employed horseshoe type moulding the best in the present embodiment.

These positioning body 22 lower ends have a folder cage structure, this bullet spare 21 can be clamped the location, avoid when the upper and lower displacement controlled pressure, and this bullet spare 21 produces offset phenomena, and can't positively grasp the control of pressure.The upper end of this positioning body 22 is provided with a small-sized screens cylinder 221, and this screens cylinder 221 is sleeved in the screens groove 113 of above-mentioned configuration part 11 hollow sleeves 110, can set with the adjustment of this configuration part 11, and correctly adjust the elastic force of this bullet spare 21.The folder cage structure appearance of this positioning body 22 has no particular limits, as long as this bullet spare 21 can be clamped fixing just passable.In addition, for fear of this positioning body 22 control this bullet spare 21 elastic force the time, produce the phenomenon of slippage because of upper and lower displacement, can be provided with two salient points 211 in this bullet spare 21 upper ends as employed mode in the present embodiment, and this positioning body 22 is arranged on 211 of two salient points, to avoid slippage, in addition, also can screw (or rivet) mode, articulate this bullet spare 21 and positioning body 22 fixing.

This detecting chamber 23 comprises a hollow chamber 232 to be measured and a hollow measuring chamber 233 that is located at 232 upper ends, this hollow chamber to be measured with first fastener 231, cooperate shown in Figure 3, the lower end of this bullet spare 21 props up this measuring chamber 233 upper ends outlet, when the pressure of being gone out by these measuring chamber 233 outlet inside is excessive, just the bullet spare 21 that covers measuring chamber 233 outlets up can be pushed away, and overpressure is discharged, to carry out pressure release control.These measuring chamber 233 edge walls are provided with second screw thread 234, the shape of this second screw thread 234, size and location all cooperate first screw thread 111 of above-mentioned setting bar 11 hollow sleeves 110, and this second screw thread 234 and first screw thread 111 are screwed, and can set the spinning movement of bar 11 according to this, set bar 11 generation upper and lower displacement effects and make.Along with this second screw thread 234 and first screw thread 111 engage, this configuration part 10 and control part 20 are connected to one, and, be fixed on really in this setting bar 11 this bullet spare 21 and positioning body 22.

Set with this rotation of setting bar 11, this setting bar 11 can carry out the upper and lower displacement action on this measuring chamber 233, to adjust the elastic force of this bullet spare 21, just adjusts the strength that control this bullet spare 21 is pushed down these measuring chamber 233 outlets, to reach the effect of controlled pressure.In addition, can positively push down this measuring chamber 233 exits in order to make this bullet spare 21, can be because of not causing the phenomenon of the displacement that comes off after repeatedly using.Therefore, be provided with a recessed cap 212 in location in the lower end of this shell fragment 21, and locate at this lock gas spare 213 is set in the recessed cap 212, this lock gas spare 213 is equipped in this and locatees in the recessed cap 212, and not slippage.In addition, in order to strengthen bed knife, as shown in Figure 3, be provided with one at these measuring chamber 233 endpiece and accept logical seat 235, it is bigger than under shed that this accepts 235 upper sheds of logical seat, and form a support seat, and this lock gas spare 213 is placed on this and accepts in the logical seat 235, this lock gas spare 213 can be blocked in upper shed place, and prop up under shed and block.This under shed of accepting logical seat 235 passes straight through to 232 places, chamber to be measured with a through hole, when gas by chamber 232 to be measured in during toward upper punch, just can lock gas spare 213 auxiliary controlled pressures by this.As long as it is just passable that the shape of this lock gas spare 213 can be accepted this under shed sealing of logical seat 235, as spheroid appearance, piston appearance or the appearance of inverted triangle cylinder, with spheroid appearance the best.

As shown in Figure 1, this gas storage portion 30 comprise a hollow bottom shell body 31 and one be located at this hollow bottom shell body 31 inner and have one second fastener 33 receive air chamber 32, this is received air chamber 32 and is provided with a vent cap 34, and this vent cap 34 is imported this with ambient atmos and received and measure in the air chamber 32.The set position of this vent cap 34 without limits, can by this bottom shell body 31 either party to run through in and feed and receive air chamber 32 inside, as the lateral margin face by bottom shell body 31 run through into or by the bottom surface of bottom shell body 31 run through into.First fastener, the 231 mutual driving fits of this second fastener 33 and this control part 20, make this control part 20 and gas storage portion 30 form one, therefore shape, the size and location of this first and

second fastener

231,33 must be in correspondence with each other, and combination can be according to general device combination commonly used, as use modes such as screw is locked, screw thread pins, coating is chimeric to engage, pinning with the screw thread of being lifted in the present embodiment is the best.In order to prevent seepage, 30 in this control part 20 and gas storage portion can add a packing ring 35, and the material of this packing ring 35 is cork, rubber etc.

As shown in Figure 3, during assembling, setting bar 11 with this configuration part 10 runs through this pointer 12 and face 13 in regular turn, respectively the bullet spare 21 of this control part 20 and positioning body 22 (or together with lock gas 213) are positioned over the endpiece of this measuring chamber 233 again, first screw thread 111 of the hollow sleeve 110 of this setting bar 11 is connected airtight mutually with second screw thread 234 of this measuring chamber 233 to be closed, this positioning body 22 is positioned in this screens groove 113, again this gas storage portion 30 is fixed in the lower end of this control part 20, but just finishes the manometric assembling of automatic vent of the present utility model.Produce upper and lower displacement along with the adjustment start of this setting bar 11, and then adjust the distance between this positioning body 22 and measuring chamber 233 outlets, the elastic force of this bullet spare 21 is adjusted in control by this, with controlled pressure size and releasing pressure automatically.

As shown in Figure 4, when working pressure surpassed set pressure limit, the gaseous tension in this measuring chamber 233 will be toward upper punch, and will lock the endpiece that gas spare 213 up pushes away measuring chamber 233, air pressure inside is discharged outward, and be discharged outside to from this relief hole passage 112.

In order to protect this configuration part 10 and the control part 20 can seepage, perspective portion 14 peripheries of this configuration part 10 can be increased (figure does not show), and with control part 20 driving fit mutually, to prevent extraneous seepage.Also can install sheath (figure does not show) protection additional in whole outer rim of the present utility model.

For can be more certain the pressure state of understanding in using, as shown in Figure 5, add a display part 15 on the face 13 of this configuration part 10, the structure of this display part 15 and installation position do not have certain restriction, as long as can show that the present situation of pressure just can in using, elastic force coil 154 of installing in a transparent tube with numerical value or mark for example, one end of this elastic force coil 154 is adjusted screw 151 with one and is pinned and be fixed on an end of this transparent tube, this adjustment screw 151 has a ventilation holes, the rotation of this adjustment screw 151 of mat is advanced and is retreated, adjust the elastic force of this elastic force coil 154, the other end of this elastic force coil 154 then is provided with a stops 152, and be connected on this air pressure duct 34 with a siphunculus 153, when gas enters in this siphunculus 153, because of pressure extrusion, make this stops 152 in this transparent tube, produce displacement, and the indicated pressure present situation.In addition, the position that this display part 15 is installed can be in any position on this face 13, as outer rim, the lower left corner or other places of reading easily.

Claims

But 1, a kind of automatic vent tensimeter is characterized in that:

This tensimeter comprises a configuration part, a control part and a gas storage portion;

This configuration part is made of a setting bar, a pointer and a face, and this setting bar inside is provided with a hollow sleeve, and the wall place of this hollow sleeve is provided with first screw thread and a relief hole passage, and this pointer and face are located on this setting bar in regular turn;

This control part is by a bullet spare made from elastic material, a positioning body and a detecting chamber constitute, the lower end of this positioning body has a folder cage structure of clamping this bullet spare of location, the upper end is sleeved in the hollow sleeve of this configuration part, this detecting chamber comprises a hollow measuring chamber that has the hollow chamber to be measured of first fastener and be located at this upper end, chamber to be measured, the lower end of this bullet spare props up this measuring chamber upper end outlet, this measuring chamber edge wall is provided with second screw thread, this second screw thread connects airtight mutually with first screw thread of this hollow sleeve, and this bullet spare and positioning body are fixed on the inside of this hollow sleeve;

This gas storage portion comprises a hollow bottom shell body and the air chamber of receiving that is located at this hollow bottom shell body inside and has second fastener, this receives air chamber and be provided with a vent cap that is in communication with the outside, first fastener driving fit mutually of this second fastener and this control part, this control part and gas storage portion form one.
But 2, automatic vent tensimeter as claimed in claim 1 is characterized in that: this face is provided with one and shows that pressure uses the display part of present situation.
But 3, automatic vent tensimeter as claimed in claim 2, it is characterized in that: this display part comprises a transparent tube and an elastic component that is located in this transparent tube with numerical value or mark, this elastic component one end is fixed on an end of this transparent tube with screw, and the other end then is provided with a stops; This transparent tube is provided with a passage that joins with this air pressure duct of receiving air chamber near an end of this stops.
But 4, automatic vent tensimeter as claimed in claim 1 is characterized in that: the relief hole passage of this configuration part communicates with the external world.
But 5, automatic vent tensimeter as claimed in claim 1 is characterized in that: relief hole passage one end of this configuration part is provided with elasticity and ends portion, and the outlet of this relief hole passage is blocked by this elasticity portion of ending.
But 6, automatic vent tensimeter as claimed in claim 1, it is characterized in that: the hollow sleeve lower end of this configuration part protrudes in the lower edge of this setting bar.
But 7, automatic vent tensimeter as claimed in claim 6 is characterized in that: the pointer of this configuration part and face are set in the lower edge that this hollow sleeve lower end protrudes in this setting bar.
But 8, automatic vent tensimeter as claimed in claim 1 is characterized in that: the bullet spare of this control part be shaped to volute spring moulding or horseshoe type moulding.
But 9, automatic vent tensimeter as claimed in claim 1 is characterized in that: the measuring chamber upper end open place of this control part is provided with one and accepts logical seat, and this upper shed of accepting logical seat is bigger than under shed, and under shed is provided with a through hole that passes straight through to this chamber to be measured.
But 10, automatic vent tensimeter as claimed in claim 9 is characterized in that: this shell fragment lower end is provided with a recessed cap in location, and this is located and is provided with a lock gas spare in the recessed cap, and this lock gas spare places this to accept logical seat, and closely seals the upper end outlet of this measuring chamber.
But 11, automatic vent tensimeter as claimed in claim 10 is characterized in that: the appearance of this lock gas spare is spheroid appearance, piston appearance or the appearance of inverted triangle cylinder.
But 12, automatic vent tensimeter as claimed in claim 1 is characterized in that: the bullet spare upper end of this control part is provided with two salient points, and this positioning body is fixed between two salient points.
But 13, automatic vent tensimeter as claimed in claim 1 is characterized in that: between the bullet spare of this control part and positioning body, be to articulate fixing with screw or rivet.
But 14, automatic vent tensimeter as claimed in claim 1 is characterized in that: this first fastener is to pin or coat the driving fit mutually of chimeric mode with screw locking, screw thread with this second fastener.