CN202790616U - Anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve - Google Patents
Anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve Download PDFInfo
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- CN202790616U CN202790616U CN 201220468450 CN201220468450U CN202790616U CN 202790616 U CN202790616 U CN 202790616U CN 201220468450 CN201220468450 CN 201220468450 CN 201220468450 U CN201220468450 U CN 201220468450U CN 202790616 U CN202790616 U CN 202790616U
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- seal ring
- gate valve
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- flashboard
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Abstract
The utility model discloses an anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve, which overcomes the defects in the prior art that the manufacturing process of a soft sealing gate valve is complicated, the cost is high and the secondary pollution on fluid is easy to cause. The plastic gate valve comprises a valve body with a three-way structure, a valve cover, a valve rod and a gate plate, wherein the valve cover is arranged at the top end of the valve body and is movably connected with the valve body; one end of the valve rod penetrates through the valve cover and extends into the valve body and an adjusting hand wheel is arranged at the end part of the other end of the valve rod; the gate plate is arranged at one end of the valve rod; the gate plate is made of a composite plastic and the valve body and the valve cover are made of modified polyphenyl ether; and copper connecting pieces are arranged at two connector ends of the valve body. The anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve has a simple structure, can be formed by injection molding and is very convenient to machine. Therefore, the anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve is suitable for large-scale popularization and application.
Description
Technical field
The utility model relates to a kind of gate valve, specifically, is a kind of anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve.
Background technique
The application of gate valve in industry and daily life is all very extensive, especially on the convection cell delivering pipe in order to open and close fluid feed status.Soft sealing gate valve is as a kind of common structure in the gate valve, and it is mostly to be to be applied to the plumbing field, such as the valve part of water supply pipe in the daily life.Soft sealing gate valve mainly is comprised of valve body, valve gap and flashboard; At present, the main body part of soft sealing gate valve on the market all is to be made by metallic material such as cast irons basically, on the one hand, valve body, valve gap are mainly cast take cast iron as main passing through, the techniques such as polishing, sandblast, machining, plastic-blasting are finished, and procedure is many, and energy consumption is large, environment is seriously influenced, and the production and processing cost is higher; On the other hand, because soft sealing gate valve control fluid transport, therefore, after long-term the use, the parts such as the valve body of soft sealing gate valve, valve gap are easy to occur oxidation under the double action of air and fluid, and the phenomenons such as burn into gets rusty appear, not only can cause the opening and closing operations of soft sealing gate valve very difficult, and be easy to convection cell and cause secondary pollution, the serious harm public's safe and sanitary.
Flashboard is understood directly and the fluid contact in the conveyance conduit as the open-shut device of soft sealing gate valve, and it has vital effect in the application of soft sealing gate valve.In the prior art, the flashboard of soft sealing gate valve mainly is take cast iron as skeleton, and then coats outside one deck rubber.For middle-size and small-size soft sealing gate valve, its flashboard skeleton volume is all less, and it is very inconvenient cylinder iron to cast skeleton; Therefore, in the prior art, the flashboard skeleton of middle-size and small-size soft sealing gate valve adopts copper or metallurgical powder to process, make more; But the manufacture cost of copper is too high, and then has increased the manufacture cost of soft sealing gate valve product integral body; And metallurgical powder is all quite serious for the pollution of most of fluids.
How when guaranteeing the soft sealing gate valve function, the Novel soft sealed gate valve of research and development, a kind of environmental protection low-carbon (LC) of production, convection cell no secondary pollution, long service life is thirsted for solving and unsolved technical barrier with regard to becoming those skilled in the art always.
The model utility content
The purpose of this utility model is to overcome that soft sealing gate valve manufacture cost in the prior art is high, processing inconvenience, control fluid is caused the defective of secondary pollution easily, and a kind of anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve of simple in structure, safe and reliable, environmental protection is provided.
The technical solution adopted in the utility model is as follows: anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve, the valve body that comprises three-port structure, be arranged on the valve gap of this valve body top and its flexible connection, one end passes valve gap and extends to the valve rod that valve inner, the other end end are provided with adjusting handle, and the flashboard that is arranged on valve rod one end, described flashboard is the composite plastic flashboard, and described valve body and valve gap are made by Noryl, and is provided with the copper link in two interface end of valve body.
In order to improve sealability of the present utility model, be provided with combination seal mechanism at the connection part of described valve rod and valve gap, and this combination seal mechanism is positioned at valve gap.
Wherein, described combination seal mechanism comprises the first seal ring that is solidified as a whole with valve rod, and the second seal ring that is flexibly connected with valve gap; Wherein, described valve rod passes the first seal ring and the second seal ring.
Specifically, be provided with a groove at the top of described valve gap, and the inwall at this groove is provided with internal thread, then is provided with the outside thread that is complementary with internal thread on the outer wall of the second seal ring, and valve gap and the second seal ring are by the flexible connection that cooperates between internal thread and the outside thread.
Further, described valve gap and valve body are threaded connection, and the connection part between the two is provided with the 3rd seal ring.
For easy-to-operat, described the first seal ring, the second seal ring and the 3rd seal ring are clad type " O " shape seal ring.
Further, described composite plastic flashboard comprises the flashboard main body that is formed and had through hole by composite structrue layer, and be arranged in the through hole of flashboard main body and shape is complementary with it, in order to connect the copper bank spare of valve rod.
Further, described composite structrue layer is by the plastic skeleton that is wrapped in copper bank spare table wall, and the rubber layer that is coated on this plastic skeleton forms.
As a kind of optimal way, described plastic skeleton is made by engineering plastics or alloy plastic.
The table wall of described valve body and valve gap by electroplate, spray is crossed or silk-screen has protective paint layer.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is not only simple in structure, easy to process, and cost is very cheap, well below the product of same domain on the market, applies on a large scale for it and to have established favourable basis;
(2) the utility model is in conjunction with the structural advantages of conventional softer seal gate valve and the characteristics of conventional plastic valve, on the basis that keeps the soft sealing gate valve structure, valve body and valve gap are made by Noryl, to mould for the iron valve, environmental protection low-carbon (LC) not only, and process very convenient, and based on the characteristic of plastics, it can be by water decomposition, and is nonpoisonous and tasteless, thereby avoid getting rusty, can not cause secondary pollution by convection cell;
(3) the utility model adopts three seal structures, in the combination seal mechanism that the connection part setting of valve rod and valve gap is made of the first seal ring and the second seal ring, connection part at valve gap and valve body then is provided with the 3rd seal ring, carry out multi-layer sealed by this three seals circle to gate valve, effectively prevented the leakage of conveyance conduit inner fluid, thereby improved widely practicability of the present utility model, strengthened the competitiveness of product in market;
(4) the first seal ring, the second seal ring and the 3rd seal ring are clad type " O " shape seal ring in the utility model, it can realize sealing, can reduce again the friction between valve rod, valve body and the seal ring, reduce torsion, thereby so that the gate valve operation is simpler, switch is laborsaving more flexibly;
(5) since the heat-conduction-type of plastics far below metal, so the plastics valve body that the utility model adopts can effectively reduce the heat loss of fluid in transport process, especially for the control of the conveyance conduits such as hot water supply, Plastic sluice valves has greatly slowed down the cooling of hot water in the pipeline, thereby reaches energy-conservation purpose;
(6) flashboard in the utility model is on the fondational structure of existing flashboard, adopt the composite plastic flashboard, and use the plastic skeleton made by engineering plastics or alloy plastic and rubber layer as the main body of flashboard, with traditional iron, metal ingredient in copper flashboard or the metallurgical powder flashboard is rejected, combination by plastic skeleton and rubber layer, on the one hand, plastic skeleton itself is nonpoisonous and tasteless, water-fast, ageing-resistant, thus when realizing elastic soft sealing, avoided causing secondary pollution because of the former thereby convection cell of framework material, on the other hand, effective production control cost;
(7) plastic skeleton is made by engineering plastics or alloy plastic in the utility model, the toughness of engineering plastics or alloy plastic itself and self-enrichment are much larger than metallic material such as cast iron, copper, its to the destruction of rubber coated material much smaller than metallic material such as cast iron, copper, thereby the working life of greatly having improved product.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of flashboard in the utility model.
Wherein, the component names that reference character is corresponding is: 1-valve body, 2-valve gap, 3-valve rod, 4-flashboard, 5-adjusting handle, 6-copper link, 7-the first seal ring, 8-the second seal ring, 9-the 3rd seal ring, 10-copper bank spare, 11-plastic skeleton, 12-rubber layer.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment, and mode of execution of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, 2, anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve, its design principle is that the inertia and the plastics that utilize plastic chemistry to react can be by water decompositions, nonpoisonous and tasteless characteristics, on the basis that keeps existing soft sealing gate valve channel-type structural advantages, critical piece with seal gate valve: valve body 1, valve gap 2 are made by Noryl, to mould Dai Tie, not only solved the problem that conventional softer seal gate valve easy convection cell causes secondary pollution, and greatly having reduced the valve cost of production, product has boundless market prospects.
Valve body 1 is the structure of three-way pipeline, top at valve body 1 is provided with outside thread, the inwall of valve gap 2 then is provided with the internal thread that is complementary with outside thread, valve gap 2 is tightened on the valve body 1 by the cooperation between two screw threads, tradition valve body 1 and valve gap 2 are generally finished by techniques such as casting, polishing, sandblast, machining, plastic-blastings by cast iron, procedure is many, energy consumption is large, and environment is had a great impact; Valve body 1 and valve gap 2 all are once property molding and forming on injection machine in the present embodiment, numerous and diverse operation of having processed when having avoided adopting cast iron materials, the manufacturing efficiency of product and the up-to-standard rate of product have been accelerated, not only saved the energy, and when having overcome the conventional softer seal gate valve and having produced on the impact of environment.
In the present embodiment, valve gap 2 shapes are similar to steeple, and valve rod 3 inserts from its top, extend to the inside of valve body 1 in order to the end that flashboard 4 is installed, the other end is reserved in the outside of valve gap 2, usually, for easy to adjust, be positioned at an end of valve gap 2 outsides in order to adjusting handle 5 to be installed.When soft sealing gate valve is controlled the switching of fluid transport, the control perpendicular direction of the transmission direction of fluid and the flashboard of soft sealing gate valve, because fluid has certain pressure, so gate valve itself also must have certain crushing resistance, and the conventional plastic valve is plastic valve, the resistance to compression of its valve rod controlling component, torsional property are very weak, therefore, for resistance to compression, the anti-twisting property that guarantees soft sealing gate valve, the valve rod 3 in the present embodiment adopts the preferably metal making of resistance to compression, torsional property; Usually, in order to compress cost of production, valve rod 3 is take iron as best, if the phenomenons such as silk are drawn in appearance after will avoiding long-time the use fully, then the manufactured materials of valve rod 3 also can be selected stainless steel or copper.The production and processing of valve gap 2, not only can make in enormous quantities, and manufacturing efficiency is very high with the once property moulding on injection machine of corresponding mould take valve rod 3 as benchmark, and the up-to-standard rate of product also is far longer than utilizes tratitional technology to make soft sealing gate valve.
Soundness and tightness for the interface that guarantees valve body 2 two ends, respectively be provided with a link by the metal making that is fastenedly connected with it at valve body 2 two ends jointings, this link be shaped as the cylindrical of hollow, its inwall has been attacked internal thread, and is common, and the material of link can select the hardness such as iron, cylinder or stainless steel larger, the metallic material that resistance to compression is stronger, as a kind of optimal way, at the connection part of valve body 2 two ends jointings copper link 5 can be set, to avoid the corrosion of fluid.Add man-hour, take two copper links 5 as benchmark, valve body 1 once injection moulding is got final product on injection machine with corresponding mould.
Flashboard is as the open-shut device of soft sealing gate valve, the quality of its quality directly has influence on the quality of soft sealing gate valve finished product, the tradition flashboard is take cast iron as skeleton, for middle-size and small-size soft sealing gate valve, on the one hand, its skeleton is less, so process very inconveniently, on the other hand, flashboard 4 directly contacts with fluid, cast iron is easy to get rusty, and convection cell causes secondary pollution.Therefore, flashboard is used in copper or metallurgical powder as the skeleton of flashboard more in the prior art, and still, the manufacture cost of copper is too high, be difficult to large-scale use, and the pollution of metallurgical powder is relatively serious.Flashboard 4 in this enforcement is the composite plastic flashboard, and it mainly is comprised of two-part: the flashboard main body, and be arranged in the through hole of flashboard main body and shape is complementary with it, in order to connect the copper bank spare 10 of valve rod 3; Wherein, composite structrue layer is a design focal point of flashboard 4 in the present embodiment, and it is by the plastic skeleton 11 that is wrapped in copper bank spare 10 table walls, and the rubber layer 12 that is coated on this plastic skeleton 11 forms; Wherein, rubber layer 12 also can be replaced by layer of silica gel.The skeleton that will have thus flashboard now replaces with plastic skeleton, this plastic skeleton is generally selected alloy plastic or engineering plastics, its chemical inertness is strong, can not mix with most of fluids or react, in addition, alloy plastic or engineering plastics also have stronger resistance to compression, torsional property, can resist hydrodynamic pressure and can not produce large distortion.
Be provided with on the flashboard main body and run through the up and down through hole at two ends of flashboard main body, 10 of copper bank spares are arranged in this through hole and with the flashboard main body and are fastenedly connected; In order further to reduce production costs, improved the competitiveness of product in market, as a kind of preferred structure, the via design on the flashboard main body is step hole, copper bank spare 10 is arranged in the less hole of step hole mesoporous.Need to prove that the structure of copper bank spare 10 is all identical with copper link 6 with material, the two is that model varies in size, and is named respectively at this, is to distinguish for convenient.During production and processing, take copper bank spare 10 as benchmark, once the property molding and forming gets final product on injection machine, very convenient, by flashboard or semi-finished product that above-mentioned steps machines, it only has copper bank spare 10 and plastic skeleton 11, on this basis, coat one deck rubber layer 12 by the heat-vulcanized method at the table wall of plastic skeleton 11, namely finish the finished product of flashboard 4 and make.Utilize itself characteristic of plastics, on the one hand since the toughness of engineering plastics or alloy plastic itself and self-enrichment much larger than cast iron materials, so it to the destruction of rubber coated material much smaller than cast iron materials, thereby the working life of having improved product; On the other hand, form flexible sealing between rubber layer 12 and valve body 1 and the flashboard 4; Plastic skeleton 2 is own nonpoisonous and tasteless, water-fast, ageing-resistant, thereby when realizing elastic soft sealing, has avoided causing secondary pollution because of the former thereby convection cell of framework material.
In order better to realize present embodiment, also be provided with combination seal mechanism at the connection part of valve gap 2 and valve rod 3, this combination seal mechanism mainly is comprised of the first seal ring 7 and the second seal ring 8, and valve rod 3 passes the first seal ring 7 and the second seal ring 8 simultaneously; Wherein, the first seal ring 7 and valve rod 3 maintenance integrative-structures when valve gap 2 molding and forming, namely finished assembling; And be provided with outside thread at the outer wall of the second seal ring 8, simultaneously, be provided with a groove at the top of valve gap 2, and the inwall of this groove is provided with the internal thread that the outside thread on the outer wall with the second seal ring 8 is complementary, the second seal ring 8 by the outside thread on it and the cooperation between the internal thread to realize the flexible connection with valve gap 2.Connection part at valve gap 2 and valve body 1 also is provided with the 3rd seal ring 9, and the 3rd seal ring 9 is arranged on valve body 1 and attacks a threaded end; The first seal ring 7, the second seal ring 8 and the 3rd seal ring 9 are the clad type round section joint ring, and it can realize sealing, can reduce again the friction of valve rod 3, valve body 1 and seal ring, reduce torsion, thereby make switch laborsaving more flexibly.By this three seals circle gate valve is carried out multi-layer sealedly, effectively prevented the leakage of conveyance conduit inner fluid, thereby improved widely practicability of the present utility model, strengthened the competitiveness of product in market.
Product component after the molding and forming, be assembled into finished product after, also need carry out the pressure test in the water by valve test bed, whether meet NBS to judge finished product.Soft sealing gate valve can carry out according to user's request also that electroplating surface, spray cross, the following process such as silk-screen; And, by the change with copper bank spare 10 or copper link 6, can realize connecting with various ways such as screw thread, hot melts from different connecting tubes.
According to above-described embodiment, just can realize well the utility model.
Claims (10)
1. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve, the valve body (1) that comprises three-port structure, be arranged on the valve gap (2) of this valve body (1) top and its flexible connection, one end passes valve gap (2) and extends to valve body (1) inside, the other end end is provided with the valve rod (3) of adjusting handle (5), and the flashboard (4) that is arranged on valve rod (3) one ends, it is characterized in that: described flashboard (4) is the composite plastic flashboard, and described valve body (1) is made by Noryl with valve gap (2), and is provided with copper link (6) in two interface end of valve body (1).
2. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 1 is characterized in that: the connection part at described valve rod (3) and valve gap (2) is provided with combination seal mechanism, and this combination seal mechanism is positioned at valve gap (2).
3. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 2, it is characterized in that: described combination seal mechanism comprises the first seal ring (7) that is solidified as a whole with valve rod (3), and the second seal ring (8) that is flexibly connected with valve gap (2); Wherein, described valve rod (3) passes the first seal ring (7) and the second seal ring (8).
4. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 3, it is characterized in that: be provided with a groove at the top of described valve gap (2), and the inwall at this groove is provided with internal thread, then be provided with the outside thread that is complementary with internal thread on the outer wall of the second seal ring (8), valve gap (2) and the second seal ring (8) are by the flexible connection that cooperates between internal thread and the outside thread.
5. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 4 is characterized in that: described valve gap (2) is threaded connection with valve body (1), and the connection part between the two is provided with the 3rd seal ring (9).
6. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 5, it is characterized in that: described the first seal ring (7), the second seal ring (8) and the 3rd seal ring (9) are clad type " O " shape seal ring.
7. each described anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 1～6, it is characterized in that: described composite plastic flashboard comprises the flashboard main body that is formed and had through hole by composite structrue layer, and be arranged in the through hole of flashboard main body and shape is complementary with it, in order to connect the copper bank spare (10) of valve rod (3).
8. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 7, it is characterized in that: described composite structrue layer is by the plastic skeleton (11) that is wrapped in copper bank spare (10) table wall, and the rubber layer (12) that is coated on this plastic skeleton (11) forms.
9. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 8, it is characterized in that: described plastic skeleton (11) is made by engineering plastics or alloy plastic.
10. anti-rotten pollution-proof soft seal environmentally-friendly plastic gate valve according to claim 9 is characterized in that: the table wall of described valve body (1) and valve gap (2) by electroplate, spray is crossed or silk-screen has protective paint layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220468450 CN202790616U (en) | 2012-09-14 | 2012-09-14 | Anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220468450 CN202790616U (en) | 2012-09-14 | 2012-09-14 | Anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790616U true CN202790616U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220468450 Expired - Lifetime CN202790616U (en) | 2012-09-14 | 2012-09-14 | Anti-corrosion pollution-proof type soft sealing environment-friendly plastic gate valve |
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| Country | Link |
|---|---|
| CN (1) | CN202790616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829205A (en) * | 2012-09-14 | 2012-12-19 | 陈建峰 | Anti-corrosive anti-pollution environment-friendly plastic brake valve with flexible seal and machining process thereof |
-
2012
- 2012-09-14 CN CN 201220468450 patent/CN202790616U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829205A (en) * | 2012-09-14 | 2012-12-19 | 陈建峰 | Anti-corrosive anti-pollution environment-friendly plastic brake valve with flexible seal and machining process thereof |
| CN102829205B (en) * | 2012-09-14 | 2014-01-01 | 陈建峰 | Anti-corrosive anti-pollution environment-friendly plastic brake valve with flexible seal and machining process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140101 |
|
| RGAV | Abandon patent right to avoid regrant |