CN211039699U - Valve for pressure display - Google Patents
Valve for pressure display Download PDFInfo
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- CN211039699U CN211039699U CN201922227854.4U CN201922227854U CN211039699U CN 211039699 U CN211039699 U CN 211039699U CN 201922227854 U CN201922227854 U CN 201922227854U CN 211039699 U CN211039699 U CN 211039699U
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Abstract
The utility model relates to a fire extinguishing system equipment technical field, concretely relates to valve for pressure display. The pressure display valve comprises a valve body and a valve cover, wherein the valve body is provided with an air vent, the air vent extends from the bottom of the valve body to the top of the valve body, the top of the valve cover is provided with an interface groove, the interface groove is used for mounting a pressure display, the bottom of the interface groove is provided with a sliding cavity communicated with the air vent, a valve core is inserted into the sliding cavity in a sliding mode, the top of the valve core extends into the interface groove, and the outer surface of the valve core is axially provided with an air vent groove; the valve core O-shaped ring is fixedly sleeved at the bottom of the valve core, and the valve core O-shaped ring seals the sliding cavity when the bottom of the valve core slides to be flush with the bottom end of the sliding cavity. The utility model aims at solving the problem that the pressure gas still exists between the pipelines that the pressure display is linked together, the pressure display can not show the pressure condition in real time again, leads to the gas leakage in the fire extinguishing agent bottle.
Description
Technical Field
The utility model relates to a fire extinguishing system equipment technical field, concretely relates to valve for pressure display.
Background
Pressure displays are used to measure and indicate instruments that are above ambient pressure and are very common in fire fighting equipment. For example, for measuring and displaying the gas pressure in a fire suppressant bottle.
The valve for measuring and displaying pressure in the prior art is mostly composed of a gas pressure display valve and a pressure display, wherein one end of the gas pressure display valve is communicated with a fire extinguishing agent bottle, the other end of the gas pressure display valve is connected with the pressure display, pressure gas of the fire extinguishing agent bottle enters the pressure display through the gas pressure display valve, and then the pressure in the fire extinguishing agent bottle is displayed through the pressure display.
However, in actual operation, when the gas pressure display valve is opened, the pressure display communicates with the fire extinguishing agent bottle, and the pressure display displays the pressure inside the fire extinguishing agent bottle. When the gas pressure display valve is closed, the pressure display is isolated from the fire extinguishing agent bottle, and at the moment, because pressure gas still exists between pipelines communicated with the gas pressure display valve and the pressure display, the pressure gauge still displays pressure, and an operator cannot accurately determine whether the gas pressure display valve is closed. Therefore, when the pressure indicator is removed, gas leakage from the fire extinguishing agent bottle is likely to occur.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a valve for pressure display to solve when taking off pressure display, pressure gas still exists between the pipeline that pressure display is linked together, and pressure display can not show the pressure condition in real time again, leads to the problem of the gas leakage in the fire extinguishing agent bottle easily.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a valve for pressure display, includes valve body and valve gap, the valve gap lid closes the top of valve body, the valve body is equipped with the air vent, the air vent extends to the top of valve body from the bottom of valve body, the top of valve gap is equipped with the interface groove, the interface groove is used for installing pressure display, and the bottom in interface groove is equipped with the intercommunication the sliding chamber of air vent still includes:
the valve core is inserted in the sliding cavity in a sliding mode, the top of the valve core extends into the interface groove, and a vent groove is axially formed in the outer surface of the valve core;
and the valve core O-shaped ring is fixedly sleeved at the bottom of the valve core, and the valve core O-shaped ring seals the sliding cavity when the bottom of the valve core slides to be flush with the bottom end of the sliding cavity.
When the technical scheme is adopted, when the pressure display is installed, the pressure display is inserted in the interface groove in a sealing mode, the valve core is pressed at the bottom of the pressure display, the valve core slides downwards in the sliding cavity, the valve core O-shaped ring is pushed to be separated from the valve cover through the valve core, the vent hole is communicated with the vent groove, gas in the fire extinguishing agent bottle can enter the vent groove, and the pressure in the fire extinguishing agent bottle is displayed through the test of the pressure display.
Furthermore, the bottom of the interface groove is hinged with a connecting piece, the movable end of the connecting piece is fixedly sleeved on the top of the valve core, one side of the connecting piece, which is close to the valve core, is provided with a return spring, and two ends of the return spring are respectively and fixedly connected with the bottom of the connecting piece and the groove bottom of the interface groove.
Through connecting piece and reset spring's setting, the connecting piece can not only carry on spacingly to the case, takes off the back when pressure display moreover, can make the case can quick rebound through reset spring's back for case "O" type circle seals the air channel, and then can seal the gas in the fire extinguishing agent bottle sooner.
Further, the bottom of the valve cover is provided with a step groove with a downward notch, the step groove is sleeved with the top of the valve body in a sealing mode, and the bottom of the step groove is provided with an O-shaped ring of the valve cover.
Through installing valve gap "O" type circle in the bottom of step groove, prevent that gas from revealing from the valve gap, can seal the gas in the fire extinguishing agent bottle better.
Further, the top of the vent hole is provided with a gas buffer sleeve, the lower half part of the gas buffer sleeve is fixedly connected with the vent hole, an airflow gap exists between the upper half part of the gas buffer sleeve and the vent hole, the bottom of the gas buffer sleeve is provided with a buffer hole, and the buffer hole is communicated with the bottom of the airflow gap.
Through the setting of gaseous cushion collar, avoid the case when the downstream, atmospheric pressure direct action in the fire extinguishing agent bottle is in the bottom of case for pressure indicator can install in the interface groove faster more conveniently.
Further, the bottom of the sliding cavity is flared.
Through the arrangement of the flaring, the valve core O-shaped ring can be moved conveniently, and the sealing effect of the valve core O-shaped ring is better.
Furthermore, the interface groove circumference is equipped with the dashpot, slidable mounting has the interface sealing washer from top to bottom in the dashpot, and has the space between the cell wall of interface sealing washer and dashpot.
Through the setting of dashpot and interface sealing washer, when pressure display was taken off to needs, through removing pressure display to drive interface sealing washer rebound, the residual gas of pressure display bottom passes through the space discharge of dashpot, and then can avoid when pressure display demolishs, the gas leakage in the fire extinguishing agent bottle probably appears, or the condition that pressure display atress flew out.
The beneficial effect that this scheme produced is: by arranging the interface groove in the valve cover and arranging the valve core and the valve core O-shaped ring at the same time, when the pressure display is installed, the bottom of the pressure display presses the valve core, so that gas in the fire extinguishing agent bottle can enter the vent groove, and the pressure in the fire extinguishing agent bottle is tested and displayed through the pressure display, so that the pressure in the fire extinguishing agent bottle is displayed; when the pressure display is taken down, the gas can be sealed through the valve core and the valve core O-shaped ring, and then the gas in the fire extinguishing agent bottle can be prevented from leaking.
Drawings
Fig. 1 is a schematic diagram of a state of the pressure display installed in a valve for the pressure display according to the present invention.
Fig. 2 is a schematic diagram of a state of the pressure display when the pressure display is taken out of the valve for the pressure display.
Fig. 3 is a sectional view of the interface sealing ring in the valve for pressure display according to the present invention.
Fig. 4 is a sectional view of a connector of the present invention used in a valve of a pressure display.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the valve comprises a valve body 1, a vent hole 11, a valve cover 2, a connector groove 21, a sliding cavity 22, a buffer groove 23, a valve core 3, a vent groove 31, a valve core O-shaped ring 4, a connecting piece 5, a return spring 6, a gas buffer sleeve 7, a buffer hole 71, a connector sealing ring 8 and a pressure display 9.
As shown in fig. 1 to 4, a valve for a pressure display comprises a valve body 1, a valve cover 2, a valve core 3 and a valve core "O" shaped ring 4, wherein the valve cover 2 covers the top of the valve body 1, the valve body 1 is provided with a vent hole 11, the vent hole 11 extends from the bottom of the valve body 1 to the top of the valve body 1, the top of the valve cover 2 is provided with a connector groove 21, the connector groove 21 is used for installing a pressure display 9, and the bottom of the connector groove 21 is provided with a sliding cavity 22 communicated with the vent hole 11. The valve core 3 is inserted in the sliding cavity 22 in a sliding manner, the top of the valve core 3 extends into the interface groove 21, and the outer surface of the valve core 3 is axially provided with a vent groove 31. The valve core O-shaped ring 4 is fixedly sleeved at the bottom of the valve core 3, and the valve core O-shaped ring 4 seals the sliding cavity 22 when the bottom of the valve core 3 slides to be flush with the bottom end of the sliding cavity 22.
In this embodiment, as shown in fig. 1 and 4, the bottom of the port groove 21 is hinged with a connecting piece 5, the movable end of the connecting piece 5 is fixedly sleeved on the top of the valve core 3, the right side of the connecting piece 5 is provided with a return spring 6, and the upper end and the lower end of the return spring 6 are respectively and fixedly connected with the bottom of the connecting piece 5 and the groove bottom of the port groove 21. The connecting element 5 can be composed of a fixing ring and a connecting plate with a flexible connection. Through connecting piece 5 and reset spring 6's setting, connecting piece 5 can not only carry on spacingly to case 3, takes off the back when pressure display 9 moreover, can make case 3 can quick rebound through reset spring 6's restoration for case "O" type circle 4 seals vent groove 31, and then can seal the gas in the fire extinguishing agent bottle sooner.
Wherein, the bottom of the valve cover 2 is provided with a step groove with a downward notch, the step groove is hermetically sleeved at the top of the valve body 1, and the bottom of the step groove is provided with a valve cover O-shaped ring. Through installing valve gap "O" type circle in the bottom of step groove, prevent that gas from revealing from valve gap 2, can seal the gas in the fire extinguishing agent bottle better.
In this embodiment, as shown in fig. 1 and 3, a buffer groove 23 is circumferentially arranged in the middle of the interface groove 21, the interface seal ring 8 is vertically slidably mounted in the buffer groove 23, and a gap exists between the interface seal ring 8 and a groove wall of the buffer groove 23. Through the setting of dashpot 23 and interface sealing washer 8, when pressure display 9 is taken off to needs, through removing pressure display 9 to drive interface sealing washer 8 and upwards remove, the residual gas of pressure display 9 bottom passes through the space discharge of dashpot 23, and then can avoid when pressure display 9 demolishs, the gas leakage in the fire extinguishing agent bottle probably appears, or the condition that the pressure display 9 atress flew out.
When the pressure display 9 is used, referring to fig. 1, the pressure display 9 is hermetically inserted in the interface groove 21, the bottom of the pressure display 9 presses the valve core 3, so that the valve core 3 slides downwards for 2mm-3mm in the sliding cavity 22, meanwhile, the return spring 6 is compressed, and the connecting piece 5 slides downwards along with the valve core 3; and then the valve core 3 pushes the valve core O-shaped ring 4 to be separated from the valve cover 2, so that the vent hole 11 is communicated with the vent groove 31, and then the gas in the fire extinguishing agent bottle can enter the vent groove 31, and the pressure in the fire extinguishing agent bottle is displayed through the test of the pressure display 9.
When the pressure display 9 is disassembled, referring to fig. 2, the reset spring 6 resets to push the connecting piece 5 to slide upwards, so as to drive the valve core 3 to move upwards, and meanwhile, the valve core 3 is under the action of the internal air pressure of the container, so that the valve core O-shaped ring 4 seals the vent groove 31, thereby avoiding the gas leakage in the fire extinguishing agent bottle and achieving the sealing effect. Meanwhile, when the pressure display 9 is taken out, the interface sealing ring 8 moves upwards along with the pressure display 9, so that gas in the vent groove 31 can be discharged in time, the test display of the pressure display 9 is cleared, and the situations that the gas in the fire extinguishing agent bottle leaks under the condition that the valve core O-shaped ring 4 does not seal the vent groove 31 or the pressure in the vent groove 31 is too high and the pressure display 9 is stressed and flies out are avoided.
In order to facilitate the installation of the pressure display 9, the top of the vent hole 11 is provided with an air buffer sleeve 7, the lower half part of the air buffer sleeve 7 is fixedly connected with the vent hole 11, an air flow gap exists between the upper half part of the air buffer sleeve 7 and the vent hole 11, the bottom of the air buffer sleeve 7 is provided with a buffer hole 71, and the buffer hole 71 is communicated with the bottom of the air flow gap. Wherein the bottom of the sliding cavity 22 is flared. Through the setting of gas cushion collar 7, atmospheric pressure enters into the clearance and passes case "O" type circle 4 again, avoids case 3 when the downward movement, and the pressure that the atmospheric pressure produced in the fire extinguishing agent bottle directly acts on the bottom of case 3 for pressure display 9 can install in interface groove 21 more fast more conveniently. Through the arrangement of the flaring, the valve core O-shaped ring 4 is convenient to move, and the sealing effect of the valve core O-shaped ring 4 is better.
According to the technical scheme, the connector groove 21 is formed in the valve cover 2, the valve core 3 and the valve core O-shaped ring 4 are arranged, when the pressure display 9 is installed, the valve core 3 is pressed by the bottom of the pressure display 9, so that gas in the fire extinguishing agent bottle can enter the vent groove 31, the pressure in the fire extinguishing agent bottle is tested and displayed through the pressure display 9, and the pressure in the fire extinguishing agent bottle is displayed; when the pressure display 9 is taken down, the gas can be sealed through the valve core 3 and the valve core O-shaped ring 4, and then the gas in the fire extinguishing agent bottle can be prevented from leaking.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. The utility model provides a valve for pressure display, includes valve body and valve gap, the valve gap lid closes the top of valve body, its characterized in that, the valve body is equipped with the air vent, the air vent extends to the top of valve body from the bottom of valve body, the top of valve gap is equipped with the interface groove, the interface groove is used for installing pressure display, and the bottom in interface groove is equipped with the intercommunication the sliding chamber of air vent still includes:
the valve core is inserted in the sliding cavity in a sliding mode, the top of the valve core extends into the interface groove, and a vent groove is axially formed in the outer surface of the valve core;
and the valve core O-shaped ring is fixedly sleeved at the bottom of the valve core, and the valve core O-shaped ring seals the sliding cavity when the bottom of the valve core slides to be flush with the bottom end of the sliding cavity.
2. The valve for pressure display according to claim 1, wherein the bottom of the interface slot is hinged with a connecting piece, the movable end of the connecting piece is fixedly sleeved on the top of the valve core, one side of the connecting piece close to the valve core is provided with a return spring, and two ends of the return spring are respectively fixedly connected with the bottom of the connecting piece and the slot bottom of the interface slot.
3. The valve for the pressure display of claim 2, wherein the bottom of the valve cover is provided with a stepped groove with a downward notch, the stepped groove is sleeved on the top of the valve body, and the bottom of the stepped groove is provided with a valve cover O-shaped ring.
4. The valve for a pressure display of claim 1, wherein: the top of the vent hole is provided with a gas buffer sleeve, the lower half part of the gas buffer sleeve is fixedly connected with the vent hole, an airflow gap exists between the upper half part of the gas buffer sleeve and the vent hole, the bottom of the gas buffer sleeve is provided with a buffer hole, and the buffer hole is communicated with the bottom of the airflow gap.
5. The valve for a pressure display of claim 4, wherein the bottom of the sliding chamber is flared.
6. The valve for the pressure display of claim 1, wherein the interface groove is circumferentially provided with a buffer groove, the interface sealing ring is slidably mounted in the buffer groove up and down, and a gap exists between the interface sealing ring and the groove wall of the buffer groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922227854.4U CN211039699U (en) | 2019-12-13 | 2019-12-13 | Valve for pressure display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922227854.4U CN211039699U (en) | 2019-12-13 | 2019-12-13 | Valve for pressure display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039699U true CN211039699U (en) | 2020-07-17 |
Family
ID=71567303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922227854.4U Active CN211039699U (en) | 2019-12-13 | 2019-12-13 | Valve for pressure display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039699U (en) |
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2019
- 2019-12-13 CN CN201922227854.4U patent/CN211039699U/en active Active
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