CN203214991U - Low-leakage high-sealing valve - Google Patents
Low-leakage high-sealing valve Download PDFInfo
- Publication number
- CN203214991U CN203214991U CN 201320248552 CN201320248552U CN203214991U CN 203214991 U CN203214991 U CN 203214991U CN 201320248552 CN201320248552 CN 201320248552 CN 201320248552 U CN201320248552 U CN 201320248552U CN 203214991 U CN203214991 U CN 203214991U
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- CN
- China
- Prior art keywords
- valve
- joint
- push rod
- low
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
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Abstract
The utility model discloses a low-leakage high-sealing valve. A connector (5) is connected to the upper end of a valve body (1), a gas channel (8) is arranged in the valve body (1), an air inlet hole (9) and an air outlet hole (10) are arranged in a valve ejector rob (2), an air outlet channel (11) is arranged in the connector (5), one end of a spring (3) abuts against the valve ejector rob (2), the other end of the spring (3) abuts against the connector (5), and a seal ring (4) is embedded on the valve ejector rob (2) and forms the valve with the connector (5). The low-leakage high-sealing valve further comprises a returning handle (6), the lower end of the valve ejector rob (2) is slidably connected in the connector (5), and the upper end of the valve ejector rob (2) is connected with the returning handle (6) after extending out of the connector (5). Workers only need to use the returning handle to drive the valve ejector rob to perform pressing downwards, the valve is opened, gas is led to the air outlet channel from an air chamber to be discharged out of a pipe, special tools are not utilized, and the low-leakage high-sealing valve is extremely convenient to operate; simultaneously, labor intensity is greatly reduced, and production efficiency is improved.
Description
Technical field
The utility model relates to the technical field of valve, specifically is a kind of for the low high envelope valve of letting out in the fire-fighting system.
Background technique
Low let out high envelope valve, be on the combined distribution system afflux pipeline in the fire-fighting system and the propellant pilot line on as the control valve of the gas of releasing.As shown in Figure 1, the low high envelope valve of letting out of prior art comprises valve body 01, valve 02, seal ring 03, spring 04 and joint 05, valve 02 is slidingly connected in the valve body 01, joint 05 is connected the upper end of valve body 01, one end and the joint 05 of spring 04 push against, the upper end of the other end and valve 02 pushes against, and seal ring 03 is embedded on the valve 02 and with joint 05 and forms valve; Space between joint 05, valve body 01 and valve 02 three forms air chamber 06, has gas channel 07 on the valve body 01, valve 02 lower end has the inlet hole 08 that communicates with gas channel 07, this inlet hole 08 communicates with air chamber 06 by air outlet hole 09, has the outlet passageway 010 that communicates with air chamber 06 in the joint 05.Under the normal condition, when namely system pressure was low, valve was opened, outside gas is released pipeline from gas channel 07, inlet hole 08, air outlet hole 09, air chamber 06 and outlet passageway 010 successively.When system pressure raise and reaches the force value of setting, valve 02 rose to seal ring 03 and joint 05 even at the cost of one's life, and the gas in the pipeline is enclosed in the inside.
But the low high envelope valve of letting out of above-mentioned this structure has following shortcoming:
1) owing to when system's internal pressure is higher, the low valve closing of letting out high envelope valve, and before using next time, must get rid of the gas that accumulates in the pipeline, therefore, from pipeline, pull down whole valve by instrument, pulling down and reinstalling all needs and even special tool, very inconvenient; Simultaneously, labor intensity is big, and manufacturing efficiency is low;
2) simultaneously, wholely low let out high envelope valve and be threaded in the pipeline, frequent remove and install the damage that can cause screw thread, thereby shorten the working life of valve;
3) owing to there is the residual gas with certain pressure in the pipeline, therefore, unsafe accident appears easily when pulling down in addition.
The model utility content
Technical problem to be solved in the utility model is, provide a kind of need not dismounting, easy to operate, increase the service life and the safe low high envelope valve of letting out.
For solving the problems of the technologies described above, the low high envelope valve of letting out that the utility model provides, comprise valve body, valve push rod, joint, spring and seal ring, described joint is connected the valve body upper end, has gas channel in the valve body, have inlet hole and air outlet hole in the valve push rod, has outlet passageway in the joint, one end and the valve push rod of spring push against, the other end and joint push against, and seal ring is embedded on the valve push rod and with joint and forms valve, and it also comprises reseting handle, the lower end of described valve push rod is slidingly connected in the joint, and the upper end is connected with reseting handle after stretching out joint.
The upper end of described valve push rod and reseting handle are for being threaded.
Form air chamber between described joint and the valve push rod, described gas channel communicates with inlet hole, and inlet hole communicates with air outlet hole, and air outlet hole communicates with air chamber, and air chamber communicates with outlet passageway.
After adopting above structure, the utility model compared with prior art has the following advantages:
1) owing to the length with valve push rod increases, and outside joint, be connected with reseting handle, therefore, when pipeline inner accumulated gas reaches setting pressure, as long as reseting handle is driven valve push rod to pressing down, valve open, gas are just outside air chamber leads to the outlet passageway discharge conduit, do not need to use special tool, operation is very easy; Simultaneously, reduce labor intensity greatly, enhance productivity;
2) simultaneously, during owing to the residual gas in the pipeline of releasing, need not to pull down the whole low high envelope valve of letting out, therefore, can not cause the damage of the screw thread of valve and pipeline joint, thereby prolong the working life of valve;
3) same, the residual gas with certain pressure that exists in the pipeline can not gone out quickly yet, thereby avoid occurring unsafe accident.
Description of drawings
Fig. 1 is the low structural representation of letting out high envelope valve in the prior art.
Fig. 2 is the low structural representation of letting out high envelope valve of the utility model.
Wherein:
In the prior art: 01, valve body; 02, valve; 03, seal ring; 04, spring; 05, joint; 06, air chamber; 07, gas channel; 08, inlet hole; 09, air outlet hole; 010, outlet passageway;
The utility model: 1, valve body; 2, valve push rod; 3, spring; 4, seal ring; 5, joint; 6, reseting handle; 7, air chamber; 8, gas channel; 9, inlet hole; 10, air outlet hole; 11, outlet passageway.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
By the low structural representation of letting out high envelope valve of the utility model shown in Figure 2 as can be known, it comprises valve body 1, valve push rod 2, joint 5, spring 3 and seal ring 4, described joint 5 is connected valve body 1 upper end, has gas channel 8 in the valve body 1, have inlet hole 9 and air outlet hole 10 in the valve push rod 2, have outlet passageway 11 in the joint 5, an end and the valve push rod 2 of spring 3 push against, the other end and joint 5 push against, and seal ring 4 is embedded on the valve push rod 2 and with joint 5 and forms valve.It also comprises reseting handle 6, and the lower end of described valve push rod 2 is slidingly connected in the joint 5, and the upper end is stretched out joint 5 backs and is connected with reseting handle 6.In the present embodiment, the upper end of described valve push rod 2 and reseting handle 6 are for being threaded.
Form air chamber 7 between described joint 5 and the valve push rod 2, described gas channel 8 communicates with inlet hole 9, and inlet hole 9 communicates with air outlet hole 10, and air outlet hole 10 communicates with air chamber 7, and air chamber 7 communicates with outlet passageway 11.
Low working principle of letting out high envelope valve is in the utility model: be in opening state under the normal condition, when equipment had gas to leak the situation of (pressure of gas leakage is lower than 0.2MPa), the gas of this part was just discharged from low letting out the high envelope valve; And when gas pressure during greater than 0.2Mpa, the low valve closing of letting out high envelope valve; Recover valve and under normal circumstances be in opening state, only need click reseting handle 6, the gas of pipeline inner accumulated is successively by outside gas-entered passageway 8, inlet hole 9, air outlet hole 10, air chamber 7 and outlet passageway 11 discharge conduits.
Claims (3)
1. let out high envelope valve for one kind low, comprise valve body (1), valve push rod (2), joint (5), spring (3) and seal ring (4), described joint (5) is connected valve body (1) upper end, has gas channel (8) in the valve body (1), have inlet hole (9) and air outlet hole (10) in the valve push rod (2), has outlet passageway (11) in the joint (5), one end of spring (3) and valve push rod (2) push against, the other end and joint (5) push against, seal ring (4) is embedded in valve push rod (2) upward and forms valve with joint (5), it is characterized in that: it also comprises reseting handle (6), the lower end of described valve push rod (2) is slidingly connected in the joint (5), and the upper end is stretched out joint (5) back and is connected with reseting handle (6).
2. the low high envelope valve of letting out according to claim 1 is characterized in that: the upper end of described valve push rod (2) and reseting handle (6) are for being threaded.
3. the low height of letting out according to claim 1 seals valve, it is characterized in that: form air chamber (7) between described joint (5) and the valve push rod (2), described gas channel (8) communicates with inlet hole (9), inlet hole (9) communicates with air outlet hole (10), air outlet hole (10) communicates with air chamber (7), and air chamber (7) communicates with outlet passageway (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320248552 CN203214991U (en) | 2013-05-09 | 2013-05-09 | Low-leakage high-sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320248552 CN203214991U (en) | 2013-05-09 | 2013-05-09 | Low-leakage high-sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214991U true CN203214991U (en) | 2013-09-25 |
Family
ID=49204530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320248552 Expired - Fee Related CN203214991U (en) | 2013-05-09 | 2013-05-09 | Low-leakage high-sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883761A (en) * | 2014-02-28 | 2014-06-25 | 宁波三安制阀有限公司 | Manual container valve |
-
2013
- 2013-05-09 CN CN 201320248552 patent/CN203214991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883761A (en) * | 2014-02-28 | 2014-06-25 | 宁波三安制阀有限公司 | Manual container valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20180509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |