CN1584374A - Plastic sluice valves - Google Patents
Plastic sluice valves Download PDFInfo
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- CN1584374A CN1584374A CN 200410022735 CN200410022735A CN1584374A CN 1584374 A CN1584374 A CN 1584374A CN 200410022735 CN200410022735 CN 200410022735 CN 200410022735 A CN200410022735 A CN 200410022735A CN 1584374 A CN1584374 A CN 1584374A
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- valve
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Abstract
A plastic gate consists of a cap, a rod, a plate, a wheel and a plastic body. The plate is located in the body. The wheel is fixed with the rod. Another end of the rod is inserted through the cap and is thread-connected with the plate to form a moving pair. A valve seat is matched with the plate and has two openings at the both sides of the plate. The inlet and outlet at the both ends of the plastic body are connected with the said both openings respectively. The valve seat is formed with a primary annular part and a secondary annular part, which are embedded in the plastic body respectively. The opening of the embedded part is corresponded to the one on the basement.
Description
Technical field
The present invention relates to a kind of valve, especially a kind of Plastic sluice valves.
Background technique
China's utility model patent discloses a kind of gate valve ZL03233073.1 number, this gate valve has valve body, flashboard and flashboard on-off structure, in valve body, be provided with runner, the two ends of this runner have inflow port respectively and go out head piece, it is characterized in that the inflow port of valve body and go out all thermofusible spigot formula interfaces of head piece for making by plastic materials, simultaneously, this patent has also proposed the scheme that allows valve body be made of metal internal layer and plastic outer layer.The gate valve that this patent provides can directly utilize thermofusible spigot formula interface to be connected with plastic pipe, avoids using in connection procedure similar links such as flange, the corresponding reliability that connects that improved, and help reducing pipeline cost and maintenance cost.In addition, when employing allows the optimized project that valve body is made of metal internal layer and plastic outer layer, can also save the consumption of metallic material, reduce the manufacture cost of valve.Therefore, above-mentioned existing gate valve exists certain advantage.But by recent discovering, the consumption of metal is still bigger in the said goods, the corresponding manufacture cost that is unfavorable for further reducing product, thereby the defective of existing.
Summary of the invention
The objective of the invention is the structure of above-mentioned existing product is done further to improve, provide a kind of metal consumption still less, Plastic sluice valves that the product cost is lower.
Plastic sluice valves of the present invention has valve gap, valve rod, flashboard, handwheel and plastics valve body, flashboard is positioned at the plastics valve body, has the valve gap connection mouth that matches with valve gap at the top of plastics valve body, described valve gap is fixedlyed connected with the plastics valve body and this valve gap connection mouth is sealed, one end of described valve rod is fixedlyed connected with handwheel, the other end of described valve rod passes valve gap and is threaded with flashboard and constitutes kinematic pair, in the plastics valve body, be provided with the valve seat that matches with flashboard, described valve seat has and is positioned at flashboard both sides and the first valve seat opening that matches with flashboard and the second valve seat opening, described plastics two ends of valve body has the inflow port that is connected with the first valve seat opening and the second valve seat opening respectively and goes out head piece, it is characterized in that described valve seat is made of the first ring-type valve-seat insert piece that is positioned at the flashboard both sides and the second ring-type valve-seat insert piece, the described first ring-type valve-seat insert piece and the second ring-type valve-seat insert piece are pre-buried respectively and be mounted on the plastics valve body, and the described first valve seat opening and the second valve seat opening are served as by the opening on the first ring-type valve-seat insert piece and the second ring-type valve-seat insert piece respectively.
The above-mentioned first ring-type valve-seat insert piece among the present invention and the second ring-type valve-seat insert piece be all non-to refer in particular to circular valve-seat insert piece, as being the square-outside and round-inside valve-seat insert piece of (containing ellipse).Above-mentioned valve-seat insert piece can adopt various high-abrasive materials to make, for example, can adopt metal or have higher-strength and wear-resisting plastic materials, make as ultra-high molecular weight polyethylene (containing modified ultra-high molecular weight polyethylene), polyoxymethylene (containing modified polyacetal), nylon etc.Simultaneously, according to actual needs, the above-mentioned first ring-type valve-seat insert piece can also adopt different materials to make respectively with the second ring-type valve-seat insert piece.
The wear resistance of ultra-high molecular weight polyethylene (containing modified ultra-high molecular weight polyethylene) is far superior to Cuprum alloy, when adopting ultra-high molecular weight polyethylene as the Manufacturing material of above-mentioned valve-seat insert piece, because the plastic materials of valve body generally is TPO (as polyethylene, a polypropylene), the material of inserts material and valve body is exactly same class material, when processing technology is appropriate, the ultra-high molecular weight polyethylene inserts just can combine together with the valve body plastics, leaks thereby can avoid preferably producing between valve seat and the valve body.Therefore, the present invention recommends to use the Manufacturing material of ultra-high molecular weight polyethylene as valve-seat insert piece.
In the present invention, above-mentioned plastics valve body is actually a kind of valve body of producing based on plastic materials, it both can be a kind of valve body of being made by pure plastic materials, but also can be the valve body (as be provided with the valve body of metal frame in plastic basis material) that different materials is composited.
In the present invention, owing to only adopted the higher high-abrasive material of cost in the valve seat location that contacts with flashboard, scurf resistance is had relatively high expectations, and allow all the other parts of valve body mainly be made of plastics (being the plastics valve body), thereby both guaranteed that valve had sufficiently long working life, can reduce the manufacture cost of valve again significantly.
The present invention can also do following further improvement:
Connecting part between described first ring-type valve-seat insert piece and plastics valve body is provided with the concavo-convex snap-together type structure of ring-type, connecting part between described second ring-type valve-seat insert piece and plastics valve body also is provided with the concavo-convex snap-together type structure of ring-type, prevents seepage and the effect that prevents that valve-seat insert piece longshore current road axis is loosening between valve-seat insert piece and the plastics valve body thereby play.
Connecting part between described first ring-type valve-seat insert piece and plastics valve body is provided with the anti-rotation structure that prevents the rotation of the first ring-type valve-seat insert piece, connecting part between described second ring-type valve-seat insert piece and plastics valve body is provided with the anti-rotation structure that prevents the rotation of the second ring-type valve-seat insert piece, prevents that valve-seat insert piece is along the loosening effect of himself ring heart revolving ability thereby play.Herein, set anti-rotation structure can adopt the concaveconvex structure that is arranged between valve-seat insert piece and the plastics valve body usually, but also can adopt similar lock structures such as the keyway that is inserted between valve-seat insert piece and the plastics valve body or locking pin.
Be provided with pre-buried and be mounted in connection mouth inserts on the plastics valve body at the inwall of the valve gap connection mouth of plastics valve body, allow valve gap be threaded with this connection mouth inserts, this kind structure is easy to realize simply and easily being connected of plastics valve body and valve gap.Certainly, in the solution of the present invention, do not get rid of and adopt other Placement (be connected as flange-type etc.) between plastics valve body and the valve gap.
In addition, in the present invention, the inflow port of plastics valve body and go out that head piece can be respectively the flange join type inflow port and flange join type goes out head piece also can be respectively thermofusible spigot formula inflow port and the thermofusible spigot formula goes out head piece.When adopting thermofusible spigot formula inflow port and thermofusible spigot formula to go out head piece, the inwall that can also be respectively goes out head piece in thermofusible spigot formula inflow port and thermofusible spigot formula is provided with electric heating wire, so that the construction and installation of product.
Compared with the aforementioned existing similar products, Plastic sluice valves of the present invention has reduced the manufacture cost of product significantly under the prerequisite that still has than the long life, thereby has use value.Simultaneously, in the present invention, the first ring-type valve-seat insert piece and the second ring-type valve-seat insert piece are all can be when the injection moulding valve body pre-buried and be mounted on the plastics valve body, rather than valve seat after completing, is installed separately valve body again, this not only makes valve-seat insert piece more tight and firm with combining of plastics valve body, the working life that helps improving the quality of product and prolong product, but also the characteristics that when the injection-moulded plastic valve body, are easy to embed inserts have been utilized fully, reduce the following process that valve is made, made things convenient for the making of valve.
Content of the present invention further illustrates with the following Examples, but content of the present invention is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is the structural representation when Plastic sluice valves is in closed condition among the embodiment 1.
Fig. 2 is the structural representation when Plastic sluice valves is in opening state among the embodiment 1.
Fig. 3 is the plastic valve body structure schematic representation of Plastic sluice valves among Fig. 1.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the plan view of Fig. 3.
Fig. 6 is the structural representation of the first ring-type valve-seat insert piece among Fig. 1.
Fig. 7 is the side view of Fig. 6.
Fig. 8 is the structural representation of the second ring-type valve-seat insert piece among Fig. 1.
Fig. 9 is the side view of Fig. 8.
Figure 10 is the structural representation of Plastic sluice valves among the embodiment 4.
Figure 11 is the structural representation of Plastic sluice valves among the embodiment 5.
Embodiment
Embodiment 1: shown in Fig. 1～9, Plastic sluice valves in the present embodiment has valve gap 1, valve rod 2, flashboard 3, handwheel 4 and plastics valve body 5, flashboard 3 is positioned at plastics valve body 5, has the valve gap connection mouth 6 that matches with valve gap 1 at the top of plastics valve body 5, described valve gap 1 is fixedlyed connected with plastics valve body 5 and this valve gap connection mouth 6 is sealed, one end of described valve rod 2 is fixedlyed connected with handwheel 4, the other end of described valve rod 2 passes valve gap 1 and is threaded with flashboard 3 and constitutes kinematic pair, in plastics valve body 5, be provided with the valve seat that matches with flashboard 3, described valve seat has and is positioned at flashboard 3 both sides and the first valve seat opening 7 that matches with flashboard 3 and the second valve seat opening 8, the two ends of described plastics valve body 5 have the inflow port 9 that is connected with the first valve seat opening 7 and the second valve seat opening 8 respectively and go out head piece 10, it is characterized in that described valve seat is made of the first ring-type valve-seat insert piece 11 that is positioned at flashboard 3 both sides and the second ring-type valve-seat insert piece 12, the described first ring-type valve-seat insert piece 11 and the second ring-type valve-seat insert piece 12 are pre-buried respectively and be mounted on the plastics valve body 5, and the described first valve seat opening 7 and the second valve seat opening 8 are served as by the opening on the first ring-type valve-seat insert piece 11 and the second ring-type valve-seat insert piece 12 respectively.
The connecting part of present embodiment between the first ring-type valve-seat insert piece 11 and plastics valve body 5 is provided with the concavo-convex snap-together type structure 13 of ring-type, connecting part between the second ring-type valve-seat insert piece 12 and plastics valve body 5 also is correspondingly provided with the concavo-convex snap-together type structure 14 of ring-type, with the seepage that prevents to occur between valve- seat insert piece 11,12 and the plastics valve body 5, and prevent that valve- seat insert piece 11,12 longshore current road axis from occurring loosening.
Meanwhile, the present embodiment also connecting part between described first ring-type valve-seat insert piece 11 and plastics valve body 5 is provided with the anti-rotation structure 15 that prevents the rotation of the first ring-type valve-seat insert piece, and the connecting part between described second ring-type valve-seat insert piece 12 and plastics valve body 5 is provided with the anti-rotation structure 16 that prevents the rotation of the second ring-type valve-seat insert piece.Herein, above-mentioned anti-rotation structure 15,16 is respectively the lug-shaped structure that is arranged on above-mentioned valve- seat insert piece 11,12 outer rims, after in valve-seat insert piece is embedded in the plastics valve body, it is loosening that this kind lug-shaped structure can prevent effectively that valve-seat insert piece from encircling heart revolving ability along himself.
Except that above-mentioned valve-seat insert piece is set, present embodiment also is provided with pre-buried and is mounted in connection mouth inserts 17 on the plastics valve body at the inwall of the valve gap connection mouth 6 of plastics valve body, described valve gap 1 is threaded with this connection mouth inserts 17, thereby realized being connected of valve body and valve gap simply and easily, and having guaranteed that its connection part has enough intensity, herein connection mouth inserts 17 is made by metallic material.
In the present embodiment, the above-mentioned first ring-type valve-seat insert piece 11 and the second ring-type valve-seat insert piece 12 are made by the ultra-high molecular weight polyethylene plastics.The ultra-high molecular weight polyethylene plastics that adopted in the present embodiment are the commercially available prod for the ultra-high molecular weight polyethylene that second auxiliary factory, Beijing produces.
Embodiment 2: the Plastic sluice valves of present embodiment is similar to embodiment 1, and different is, the first ring-type valve-seat insert piece 11 in the present embodiment and the second ring-type valve-seat insert piece 12 are made by acetal plastic.
Embodiment 3: the Plastic sluice valves of present embodiment is similar to embodiment 1, and different is, the first ring-type valve-seat insert piece 11 in the present embodiment and the second ring-type valve-seat insert piece 12 are made by Nylon.
Embodiment 4: as shown in figure 10, the Plastic sluice valves of present embodiment is similar to embodiment 1, and different is: in the present embodiment, the first ring-type valve-seat insert piece 11 and the second ring-type valve-seat insert piece 12 are made by metallic material.
Embodiment 5: as shown in figure 11, the Plastic sluice valves of present embodiment is similar to embodiment 1, and different is: in the present embodiment, the first ring-type valve-seat insert piece 11 and the second ring-type valve-seat insert piece 12 are made by ultra-high molecular weight polyethylene plastics and metallic material respectively.In addition, present embodiment is provided with electric heating wire 18,19 at the inwall that thermofusible spigot formula inflow port and thermofusible spigot formula go out head piece respectively, thereby makes this Plastic sluice valves more quick and easy when being connected with the plastic pipe thermofusible spigot.
Claims (10)
1, a kind of Plastic sluice valves, has valve gap, valve rod, flashboard, handwheel and plastics valve body, flashboard is positioned at the plastics valve body, has the valve gap connection mouth that matches with valve gap at the top of plastics valve body, described valve gap is fixedlyed connected with the plastics valve body and this valve gap connection mouth is sealed, one end of described valve rod is fixedlyed connected with handwheel, the other end of described valve rod passes valve gap and is threaded with flashboard and constitutes kinematic pair, in the plastics valve body, be provided with the valve seat that matches with flashboard, described valve seat has and is positioned at flashboard both sides and the first valve seat opening that matches with flashboard and the second valve seat opening, described plastics two ends of valve body has the inflow port that is connected with the first valve seat opening and the second valve seat opening respectively and goes out head piece, it is characterized in that described valve seat is made of the first ring-type valve-seat insert piece that is positioned at the flashboard both sides and the second ring-type valve-seat insert piece, the described first ring-type valve-seat insert piece and the second ring-type valve-seat insert piece are pre-buried respectively and be mounted on the plastics valve body, and the described first valve seat opening and the second valve seat opening are served as by the opening on the first ring-type valve-seat insert piece and the second ring-type valve-seat insert piece respectively.
2, Plastic sluice valves as claimed in claim 1, it is characterized in that the connecting part between described first ring-type valve-seat insert piece and plastics valve body is provided with the concavo-convex snap-together type structure of ring-type, the connecting part between described second ring-type valve-seat insert piece and plastics valve body also is provided with the concavo-convex snap-together type structure of ring-type.
3, Plastic sluice valves as claimed in claim 1, it is characterized in that the connecting part between described first ring-type valve-seat insert piece and plastics valve body is provided with the anti-rotation structure that prevents the rotation of the first ring-type valve-seat insert piece, the connecting part between described second ring-type valve-seat insert piece and plastics valve body is provided with the anti-rotation structure that prevents the rotation of the second ring-type valve-seat insert piece.
4, Plastic sluice valves as claimed in claim 1 is characterized in that inwall at the valve gap connection mouth of plastics valve body is provided with pre-buried and is mounted in connection mouth inserts on the plastics valve body, and described valve gap is threaded with this connection mouth inserts.
5, Plastic sluice valves as claimed in claim 1 is characterized in that one of at least the first ring-type valve-seat insert piece and second ring-type valve-seat insert piece made by metallic material.
6, Plastic sluice valves as claimed in claim 1 is characterized in that one of at least the first ring-type valve-seat insert piece and second ring-type valve-seat insert piece made by the ultra-high molecular weight polyethylene plastics.
7, Plastic sluice valves as claimed in claim 1 is characterized in that one of at least the first ring-type valve-seat insert piece and second ring-type valve-seat insert piece made by acetal plastic.
8, Plastic sluice valves as claimed in claim 1 is characterized in that one of at least the first ring-type valve-seat insert piece and second ring-type valve-seat insert piece made by Nylon.
9,, it is characterized in that described inflow port and go out head piece being respectively inwall and going out head piece by thermofusible spigot formula inflow port and the thermofusible spigot formula that plastic materials constitutes as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 described Plastic sluice valves.
10, plastic stop valve as claimed in claim 9 is characterized in that respectively the inwall that goes out head piece in thermofusible spigot formula inflow port and thermofusible spigot formula is provided with electric heating wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410022735 CN1584374A (en) | 2004-06-07 | 2004-06-07 | Plastic sluice valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410022735 CN1584374A (en) | 2004-06-07 | 2004-06-07 | Plastic sluice valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1584374A true CN1584374A (en) | 2005-02-23 |
Family
ID=34600698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410022735 Pending CN1584374A (en) | 2004-06-07 | 2004-06-07 | Plastic sluice valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1584374A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781448A (en) * | 2017-11-24 | 2018-03-09 | 泗县金皖泵业有限公司 | A kind of antifreeze ball valve |
| CN113339511A (en) * | 2020-03-03 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve nut seat structure and mounting method thereof |
-
2004
- 2004-06-07 CN CN 200410022735 patent/CN1584374A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781448A (en) * | 2017-11-24 | 2018-03-09 | 泗县金皖泵业有限公司 | A kind of antifreeze ball valve |
| CN113339511A (en) * | 2020-03-03 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve nut seat structure and mounting method thereof |
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