CN204403489U - A kind of piston type pressure maintaining valve - Google Patents
A kind of piston type pressure maintaining valve Download PDFInfo
- Publication number
- CN204403489U CN204403489U CN201520022331.5U CN201520022331U CN204403489U CN 204403489 U CN204403489 U CN 204403489U CN 201520022331 U CN201520022331 U CN 201520022331U CN 204403489 U CN204403489 U CN 204403489U
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- Prior art keywords
- piston
- housing
- hole
- pressure maintaining
- maintaining valve
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Abstract
The utility model discloses a kind of piston type pressure maintaining valve, the spring comprising inlet attack, outlet connection, housing, valve seat, piston and be arranged between housing and piston; This piston type pressure maintaining valve reliability is high, range of regulation is controlled by the elastic force of spring, structure is simple, compact, working principle is simple, and can according to different usage requirements, adopt the pressure regulation spectrum of spring to pressure maintaining valve of different-stiffness to set, applied widely, the voltage-regulation voltage-stabilization that can be used for the various gas such as air, nitrogen, rock gas of p-45 DEG C ~ 55 DEG C controls.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of piston type pressure maintaining valve.
Background technique
At present, gas pressure maintaining valve adopts diaphragm type pressure maintaining valve usually, and diaphragm type pressure maintaining valve needs to regularly replace spool, seal spool and diaphragm, causes the use of pressure maintaining valve, maintenance cost higher; Diaphragm type pressure maintaining valve often needs manual tune outlet pressure in use, uses operation more complicated, and easily occurs diaphragm gas leakage or misoperation pressure adjusting lever, and causes the change of outlet pressure, thus affects the using effect of pressure maintaining valve.
Model utility content
Technical problem to be solved in the utility model is to provide that a kind of structure is simple, easy for installation, reliability is high, long service life and non-maintaining piston type pressure maintaining valve.
For solving the problems of the technologies described above, the utility model have employed a kind of piston type pressure maintaining valve, comprise the gas channel be made up of inlet attack, outlet connection and housing, described inlet attack and outlet connection are arranged on the two ends, left and right of housing respectively, and described enclosure interior is set to the housing cavity of conducting; Be provided with step in described housing cavity, housing cavity is divided into the left chamber of isolation and right chamber by step, and described step is provided with step hole, and step hole is communicated with left chamber and right chamber, and the housing at place, described right chamber is provided with the exhaust port with extraneous conducting; Be provided with valve seat in described left chamber, gas enters housing cavity by valve seat, valve seat is provided with valve base sealing block; Piston is provided with in described housing cavity, piston is hollow structure, and piston left end is provided with air inlet through hole, and the right side of right-hand member is provided with air outlet hole, described piston left end coordinates and is arranged in step hole, the air outlet hole on the right side of right-hand member and being sealed and matched between outlet connection left side; Be provided with spring between described piston and housing, described spring is arranged between the left side of piston right-hand member and step right side; Between described inlet attack and housing, between outlet connection and housing, between piston and step hole, between piston and housing, be provided with seal ring.
As of the present utility model preferred further, described valve seat is provided with inlet hole, and described inlet hole is arranged along valve seat circumferencial direction.
As of the present utility model preferred further, the air outlet hole on described piston is arranged along the right side circumferencial direction of piston right-hand member.
As of the present utility model preferred further, be provided with O type circle between described inlet attack and housing, between outlet connection and housing, between described piston and step hole, between piston and housing, be provided with y-type seal ring.
As of the present utility model preferred further, described exhaust port is connected with exhaust joint.
The beneficial effect that the utility model has:
1) reliability is high, controls range of regulation by the elastic force of spring, more stable to the regulation range of outlet pressure;
2) structure is simple, compact, and working principle is simple, can realize ventilation, exhaust easy motion more than 1,000,000 times, long service life;
3) in this pressure maintaining valve, the stroke of piston movement is short, is quick on the draw, and in the moment of ventilation, piston can move in time, thus reaches the object of pressure-reduced and-regulated;
4) easy to use, this pressure maintaining valve, according to different usage requirements, can adopt the spring of different-stiffness just to set the pressure regulation spectrum of pressure maintaining valve when dispatching from the factory, and does not need manually to regulate in using process.
5) applied widely, the voltage-regulation voltage-stabilization being applicable to the various gas such as air, nitrogen, rock gas of p-45 DEG C ~ 55 DEG C controls.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the main TV structure schematic diagram of piston in the utility model.
Fig. 3 is the right TV structure schematic diagram of piston in the utility model.
Fig. 4 is the right TV structure schematic diagram of valve seat in the utility model.
Fig. 5 be in Fig. 4 A-A to sectional view.
In figure: 1, inlet attack, 2, valve seat, 3, valve base sealing block, 4, housing, 5, piston, 6, outlet connection, 7, exhaust port, the 8, the one O type circle, 9, the first y-type seal ring, 10, exhaust joint, 11, spring, 12, the second y-type seal ring, the 13, the 2nd O type circle, 14, inlet hole, 15, gas-entered passageway, 16, left chamber, 17, right chamber, 18, step, 19, step hole, 20, air outlet hole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of piston type pressure maintaining valve as shown in Fig. 1 to 5, comprise the gas channel be made up of inlet attack 1, outlet connection 6 and housing 4, described inlet attack 1 and outlet connection 6 are arranged on the two ends, left and right of housing 4 respectively, and described housing 4 inside is set to the housing cavity of conducting; Step 18 is provided with in described housing cavity, housing cavity is divided into left chamber 16 and the right chamber 17 of isolation by step 18, described step 18 is provided with step hole 19, and step hole 19 is communicated with left chamber 16 and right chamber 17, and the housing 4 at place, described right chamber 17 is provided with the exhaust port 7 with extraneous conducting; Be provided with valve seat 2 in described left chamber 16, gas enters housing cavity by valve seat 2, valve seat 2 is provided with valve base sealing block 3; Piston 5 is provided with in described housing cavity, piston 5 is hollow structure, piston 5 left end is provided with air inlet through hole 15, the right side of right-hand member is provided with air outlet hole 20, described piston 5 left end coordinates and is arranged in step hole 19, the air outlet hole 20 on the right side of right-hand member and being sealed and matched between outlet connection 6 left side; Be provided with spring 11 between described piston 5 and housing 4, described spring 11 is arranged between the left side of piston 5 right-hand member and step 18 right side; Between described inlet attack 1 and housing, between outlet connection 6 and housing, between piston 5 and step hole 19, between piston 5 and housing, be provided with seal ring.
As shown in Figure 4,5, in the utility model, valve seat 2 is fixedly installed in left chamber 16, and and be sealed and matched between housing 4 inwall, valve seat 2 is provided with inlet hole 14, inlet hole 14 is arranged along valve seat 2 circumferencial direction; Gas, through inlet attack 1, is entered in left chamber 16 by the inlet hole 14 on valve seat 2.
As shown in Figure 2,3, air outlet hole 20 in the utility model on piston 5 is arranged along the right side circumferencial direction of piston 5 right-hand member, gas in left chamber 16 enters in piston 5 cavity by the air inlet through hole 15 of piston 5, piston 5 is moved to the left under the influence of air pressure, the right side of piston 5 right-hand member is made to be separated with outlet connection 6 end face, gas in piston 5 cavity enters the right chamber 17 of housing from air outlet hole 20, and the gas through outlet joint 6 in right chamber 17 is discharged.
As shown in Figure 1, an O type circle 8 is provided with between described inlet attack 1 and housing, be provided with the 2nd O type circle 13 between outlet connection 6 and housing, between described piston 5 and step hole 19, be provided with the second y-type seal ring 12, between piston 5 and housing, be provided with the first y-type seal ring 9.
Described exhaust port 7 is connected with exhaust joint 10.
The inlet attack 1 of this pressure maintaining valve, outlet connection 6 is connected with housing 4 by bolt, one O type circle 8 is installed in the seal groove of inlet attack 1, valve base sealing block 3 is installed on valve seat 2, valve seat 2 is installed in housing 4, piston 5 is arranged on the step hole 19 in housing, second y-type seal ring 12 is installed in the seal groove in housing 4 on step hole 19, and piston 5 left end just can be allowed through step hole 19, and and be sealed and matched between step hole 19, first y-type seal ring 9 is installed in piston seal groove, one O RunddichtringO 8 is installed on outlet connection 6, exhaust joint 10 is connected with the air outlet hole 20 on housing by screw thread, exhaust joint 10 is sealed by seal ring with the connection part of air outlet hole 20.
Below in conjunction with the structure of pressure maintaining valve, be described in detail as follows to the working procedure of pressure maintaining valve: gas accesses from inlet attack 1, the left chamber 16 of housing 4 is entered into by the inlet hole 14 on valve seat 2, gas stores in left chamber 16, and enter in piston 5 by the air inlet through hole 15 of piston 5, gas stores in piston 5, and produce the end motion left of pressure reversal promotion piston 5, piston 5 is made to move to certain distance left and be stabilized in fixed position, now gas enters in right chamber 17 by the air outlet hole 20 on piston 5, then gas is discharged by outlet connection 6, and then ensure that gas is with stable Output pressure, realize the object of Pressure-stabilizing pressure reducing.
Control range of regulation by the elastic force of spring 11 in this piston type pressure maintaining valve, and according to different usage requirements, adopt the spring 11 of different-stiffness to realize gas pressure decompression in various degree.
This piston type pressure maintaining valve, suction port range of regulation 1 ~ 1.4MPa, outlet pressure 0.77 ~ 0.78MPa, air mass flow 102KG/h, gas discharge 57KG/h, operating temperature is-45 DEG C ~ 55 DEG C.
The utility model is not limited to above-described embodiment; on the basis of technological scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some of them technical characteristics to replace and distortion, these are replaced and are out of shape all in protection domain of the present utility model.
Claims (5)
1. a piston type pressure maintaining valve, it is characterized in that: comprise the gas channel be made up of inlet attack (1), outlet connection (6) and housing (4), described inlet attack (1) and outlet connection (6) are arranged on the two ends, left and right of housing (4) respectively, and described housing (4) inside is set to the housing cavity of conducting;
Step (18) is provided with in described housing cavity, housing cavity is divided into left chamber (16) and right chamber (17) of isolation by step (18), described step (18) is provided with step hole (19), step hole (19) is communicated with left chamber (16) and right chamber (17), and the housing (4) at described right chamber (17) place is provided with and the exhaust port of extraneous conducting (7);
Be provided with valve seat (2) in described left chamber (16), gas enters housing cavity by valve seat (2), valve seat (2) is provided with valve base sealing block (3);
Piston (5) is provided with in described housing cavity, piston (5) is hollow structure, piston (5) left end is provided with air inlet through hole (15), the right side of right-hand member is provided with air outlet hole (20), the cooperation of described piston (5) left end is arranged in step hole (19), is sealed and matched between the air outlet hole (20) on the right side of right-hand member and outlet connection (6) left side;
Be provided with spring (11) between described piston (5) and housing (4), described spring (11) is arranged between the left side of piston (5) right-hand member and step (18) right side;
Seal ring is provided with between described inlet attack (1) and housing, between outlet connection (6) and housing, between piston (5) and step hole (19), between piston (5) and housing.
2. piston type pressure maintaining valve according to claim 1, is characterized in that: described valve seat (2) is provided with inlet hole (14), and described inlet hole (14) is arranged along valve seat (2) circumferencial direction.
3. piston type pressure maintaining valve according to claim 1 and 2, is characterized in that: the air outlet hole (20) on described piston (5) is arranged along the right side circumferencial direction of piston (5) right-hand member.
4. piston type pressure maintaining valve according to claim 3, it is characterized in that: between described inlet attack (1) and housing, between outlet connection (6) and housing, be provided with O type circle, between described piston (5) and step hole (19), between piston (5) and housing, be provided with y-type seal ring.
5. piston type pressure maintaining valve according to claim 4, is characterized in that: described exhaust port (7) is connected with exhaust joint (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022331.5U CN204403489U (en) | 2015-01-13 | 2015-01-13 | A kind of piston type pressure maintaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022331.5U CN204403489U (en) | 2015-01-13 | 2015-01-13 | A kind of piston type pressure maintaining valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403489U true CN204403489U (en) | 2015-06-17 |
Family
ID=53427349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520022331.5U Expired - Fee Related CN204403489U (en) | 2015-01-13 | 2015-01-13 | A kind of piston type pressure maintaining valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403489U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523752A (en) * | 2016-08-29 | 2017-03-22 | 浙江威腾阀门有限公司 | Spring operated type pressure-control pressure maintaining device |
| CN110608305A (en) * | 2018-06-15 | 2019-12-24 | 芜湖美的厨卫电器制造有限公司 | Gas valve device and gas water heater |
| CN110820013A (en) * | 2019-11-25 | 2020-02-21 | 陈雨 | Electrolytic cell nitrogen gas voltage stabilizing device |
-
2015
- 2015-01-13 CN CN201520022331.5U patent/CN204403489U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523752A (en) * | 2016-08-29 | 2017-03-22 | 浙江威腾阀门有限公司 | Spring operated type pressure-control pressure maintaining device |
| CN106523752B (en) * | 2016-08-29 | 2019-01-18 | 浙江威腾阀门有限公司 | Spring-action pressure controls pressurizer |
| CN110608305A (en) * | 2018-06-15 | 2019-12-24 | 芜湖美的厨卫电器制造有限公司 | Gas valve device and gas water heater |
| CN110608305B (en) * | 2018-06-15 | 2024-02-20 | 芜湖美的厨卫电器制造有限公司 | Gas valve device and gas water heater |
| CN110820013A (en) * | 2019-11-25 | 2020-02-21 | 陈雨 | Electrolytic cell nitrogen gas voltage stabilizing device |
| CN110820013B (en) * | 2019-11-25 | 2021-07-06 | 台州衡力金属制品有限公司 | Electrolytic cell nitrogen gas voltage stabilizing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20170113 |