CN2237759Y - One-way piston type valve - Google Patents
One-way piston type valve Download PDFInfo
- Publication number
- CN2237759Y CN2237759Y CN 95241869 CN95241869U CN2237759Y CN 2237759 Y CN2237759 Y CN 2237759Y CN 95241869 CN95241869 CN 95241869 CN 95241869 U CN95241869 U CN 95241869U CN 2237759 Y CN2237759 Y CN 2237759Y
- Authority
- CN
- China
- Prior art keywords
- piston rod
- inner chamber
- internal diameter
- valve body
- water outlet
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract 3
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Lift Valve (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a one-way piston valve, it contains valve body, piston rod, upper seal circle, lower seal circle, handle. The valve body is provided with a water inlet and a water outlet, the inner cavity of the valve body is divided into an upper section and a lower section, the upper section is a cylindrical inner cavity with the same upper inner diameter and lower inner diameter, and the lower section is a horn-shaped inner cavity with a larger upper part and a smaller lower part. The inner diameter of the upper end of the horn-shaped inner cavity is equal to that of the cylindrical inner cavity, and the inner diameter of the lower end of the horn-shaped inner cavity is equal to that of the water outlet. The diameter of the upper section of the piston rod is slightly smaller than that of the cylindrical inner cavity, the diameter of the lower section of the piston rod is slightly smaller than that of the water outlet, the upper section of the piston rod is provided with a sealing ring which is tightly fit with the surface of the cylindrical inner cavity to separate the upper part of the piston rod from the water inlet, and the lower section of the piston rod is provided with a lower sealing ring which is. Simple structure and long service life.
Description
The utility model belongs to valve technology field.
Valve commonly used comprises valve body, seal ring, handle and screw rod, promotes the seal ring circulation road of closing or fetch boiling water with screw rod.In order to prevent leaking under the closed condition, screw rod must be tightened, seal ring is pressed on the valve body, the long-term use, seal ring and screw rod all damage easily, shorten the life-span of valve, also the effect of influence joint liquid medicine resource.
The purpose of this utility model is to provide the single acting piston formula valve of the employing piston switch flow channel of growing a kind of working life.
The utility model comprises valve body, handle, piston rod and upper and lower seal ring.The body cavity hypomere is up big and down small tubaeform cavity.When piston rod was displaced downwardly to bottom dead center position, the lower seal on the piston-rod lower end was just blocked the lower end of tubaeform inner chamber, and effect of water pressure is stopped up the end opening of tubaeform inner chamber fully on lower seal, current are closed.To move on the piston rod, the seal ring on the piston-rod lower end enters the bigger part of internal diameter of tubaeform inner chamber, and current promptly flow out through the space between lower seal and the tubaeform inner chamber.Change the position of piston rod, promptly can regulate flows out the size of current.
Fig. 1 is a structural drawing of the present utility model.Wherein, 1 is valve body, and 2 is cylindrical inner chamber, and 3 is tubaeform inner chamber, and 4 is piston rod, and 5 is last seal ring, and 6 is lower seal, and 7 is handle, and 8 is water intake, and 9 is water outlet, and 10 is top dead center, and 11 is lower dead center.Below in conjunction with Fig. 1 the utility model is further described.Water intake 8 and water outlet 9 are arranged on the valve body 1.The inner chamber of valve body 1 is divided into two sections, epimere is the cylindrical inner chamber 2 that upper and lower internal diameter equates, hypomere is the up big and down small tubaeform inner chamber 3 of internal diameter, the upper end of tubaeform inner chamber 3 is a top dead center 10, this place's internal diameter equates with the internal diameter of cylindrical inner chamber 2, the lower end is a lower dead center 11, and this place's internal diameter equates with the internal diameter of water outlet 9.Piston rod is divided into two sections, and the diameter of epimere is slightly less than the internal diameter of cylindrical inner chamber 2, and the diameter of hypomere is slightly less than the internal diameter of water outlet 9.Seal ring 5 is housed on the epimere of piston rod, after loading onto, the internal surface driving fit of last seal ring 5 and cylindrical inner chamber 2, cut off water intake 8 and the intracavity space of last seal ring 5 with top, water can not be let out by last seal ring 5, when piston rod moved up and down, lower seal 6 can be moved between top dead center 10 and lower dead center 11.When lower seal 6 was loaded onto in piston rod 4 lower ends, its external diameter was slightly larger than water outlet 9 internal diameters, so when lower seal 6 was positioned at lower dead center 11, hydraulic action blocked water outlet 9 on lower seal 6 fully, thereby closed current; When driving lower seal 6, piston rod 4 leaves when moving in the tubaeform inner chamber 3 on the lower dead center 11, at this moment, the internal diameter of tubaeform inner chamber 3 is greater than the internal diameter of lower seal 6, current just can move on water outlet 9 flows out as continues lower seal 6 through the space between lower seal 6 and the tubaeform inner chamber 3, then current are big more, during to top dead center 10, the current maximum.Piston rod 4 is enclosed within the chamber of valve body 1, can make expedite straight line motion; Also can make screw thread and with this screw thread combination at the epimere of the epimere of piston rod 4 and valve body 1 inner chamber, piston rod 4 can be while rotating moving linearly.Handle 7 is installed on top at piston rod 4, in order to promote piston rod 4 motions.Valve body 1 and piston rod 4, handle 7 can be made with metallic material, also can be made of plastic.Last seal ring 5 and lower seal 6 can be made with rubber, can be made of plastic.
The utility model has the advantages that simple in structure, low cost of manufacture, long service life.
Claims (5)
1. a single acting piston formula valve is characterized in that comprising valve body (1), piston rod (4), goes up seal ring (5), lower seal (6), handle (7); Water intake (8) and water outlet (9) are arranged on the valve body (1), the inner chamber of valve body (1) is divided into upper and lower two sections, epimere is the cylindrical inner chamber (2) that upper and lower internal diameter equates, hypomere is the up big and down small tubaeform inner chamber (3) of internal diameter, the upper end of tubaeform inner chamber (3) is top dead center (10), this place's internal diameter equates that with the internal diameter of cylindrical inner chamber (2) lower end is lower dead center (11), and this place's internal diameter equates with the internal diameter of water outlet (9); Piston rod (4) is divided into two sections, and the diameter of epimere is slightly less than cylindrical inner chamber (2) internal diameter, and the hypomere diameter is slightly less than water outlet (9) internal diameter; Piston rod (4) is contained in the inner chamber of valve body (1), can unhinderedly move up and down, seal ring (5) is housed, after loading onto on its epimere, the internal surface driving fit of last seal ring (5) and cylindrical inner chamber (2) cuts off water intake (8) and the intracavity space of last seal ring (5) with top; Lower seal (6) is equipped with in the lower end of piston rod (4), its external diameter is slightly larger than water outlet (9) internal diameter, when lower seal (6) is positioned at lower dead center (11) when locating, hydraulic action can block water outlet (9) sealing on lower seal (6), and lower seal (6) can move up and down between lower dead center (11) and top dead center (10); Handle (7) is contained in piston rod (4) top.
2. according to the described single acting piston formula of claim 1 valve, it is characterized in that valve body (1), piston rod (4), handle (7) made by metallic material.
3. according to the described single acting piston formula of claim 1 valve, it is characterized in that valve body (1), piston rod (4), handle (7) are made of plastics.
4. according to the described single acting piston formula of claim 1 valve, it is characterized in that seal ring (5), lower seal (6) made by rubber.
5. according to the described single acting piston formula of claim 1 valve, it is characterized in that seal ring (5), lower seal (6) are made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241869 CN2237759Y (en) | 1995-07-13 | 1995-07-13 | One-way piston type valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241869 CN2237759Y (en) | 1995-07-13 | 1995-07-13 | One-way piston type valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237759Y true CN2237759Y (en) | 1996-10-16 |
Family
ID=33882938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95241869 Expired - Fee Related CN2237759Y (en) | 1995-07-13 | 1995-07-13 | One-way piston type valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237759Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589745A (en) * | 2019-10-12 | 2019-12-20 | 广州达意隆包装机械股份有限公司 | Filling valve and filling method thereof |
-
1995
- 1995-07-13 CN CN 95241869 patent/CN2237759Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589745A (en) * | 2019-10-12 | 2019-12-20 | 广州达意隆包装机械股份有限公司 | Filling valve and filling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |