CN2586020Y - Environmental protection flexible soft sealed centitheft gate valve - Google Patents
Environmental protection flexible soft sealed centitheft gate valve Download PDFInfo
- Publication number
- CN2586020Y CN2586020Y CN 02245003 CN02245003U CN2586020Y CN 2586020 Y CN2586020 Y CN 2586020Y CN 02245003 CN02245003 CN 02245003 CN 02245003 U CN02245003 U CN 02245003U CN 2586020 Y CN2586020 Y CN 2586020Y
- Authority
- CN
- China
- Prior art keywords
- valve
- theft
- gate valve
- environment protection
- flashboard
- 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
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Abstract
The utility model relates to an environmental protection flexible soft sealed theftproof gate valve, which belongs to a gate valve used for a drinking water system. The utility model is mainly composed of a valve body, a valve cap, a gate plate arranged on a flow channel of the valve body, a valve stem connected with the gate plate and a sealed structure of the valve stem. The whole gate plate is coated with a nontoxic elastic material layer, and in inner cavity of the valve is covered with a nontoxic plastic spraying coating layer. The utility model having no pollution on water quality is suitable for the drinking water system.
Description
Technical field
The utility model relates to valve, makes the field especially for the gate valve of potable water.
Background technique
At present, the employed gate valve of running water system mainly contains rising stem (RS.) (lifting bar) gate valve and dark bar (swingle) gate valve two classes, and its flashboard has the branch of wedge-type and parallel type, based on wedge-type.Above-mentioned existing gate valve is applied to directly drink in the running water system of level, and there are the following problems and deficiency, and valve body, valve gap are cast iron, the part that contacts with medium is general steel, easy-to-rust, in long-term the use, whole valve cavity (inner valve body and valve gap constitute) becomes water pollution source; The flashboard that adopts the base metal material in use, frequently reciprocally upper and lower moving, sealing surface easily abrades, weares and teares, and loses seal action first, second fricative break flour grit becomes another water pollution source; The valve body lower portion of existing common gate valve has groove, piles up foreign material easily, causes the tight and fluid resistance increase of valve closing; Existing common gate valve adopts operated by handwheel, and the non-management employee is careless switch also, and the user mode of change valve like this, is not utilized the management of potable water system.
The model utility content
The purpose of this utility model is to provide a kind of environment protection elastic soft seal theft-proof gate valve at the deficiencies in the prior art part, to reach the pollution of minimizing to potable water.This purpose is realized by following design: a kind of environment protection elastic soft seal theft-proof gate valve comprises valve body, valve gap, place the flashboard on the valve body fluid passage, the valve rod that connects with flashboard, valve rod leak-proof structure, cladding has one deck nontoxic elastic material on the described whole flashboard; Described valve cavity is topped nontoxic sprayed plastic coat.From technique scheme as seen, cladding one deck nontoxic elastic material on the whole flashboard, and at the topped nontoxic sprayed plastic coat of valve cavity (being the inner chamber that valve body and valve gap constitute), take above measure, all adopt the non-toxic material of avoiding polluted water with the contacted material of medium in the valve on the one hand, directly played and reduced the effect that water pollutes; On the other hand, flashboard integral body is Flexible disc through the cladding of elasticity non-toxic material, has reduced the scratch of moving sealing surface, has prolonged the flashboard life-span, simultaneously, has also played from another point of view and has reduced the effect that water pollutes.
Description of drawings
Fig. 1 is this novel embodiment's a erection drawing;
Fig. 2 Fig. 3 is respectively the plan view and the left view of flashboard shown in Figure 1;
Fig. 4 is the plan view (amplification) of valve rod shown in Figure 1;
Fig. 5 is the stereogram of protecting cover shown in Figure 1.
Embodiment
Fig. 1 illustrates, and valve body 1 valve gap 9 adopts flange-type, (flange gasket 5 in the liner) to connect with socket head screw 14, and is tight with sealing with wax in the countersunk seat.It is smooth that the fluid passage of valve body 1 is straight, is equivalent to one section direct piping, can effectively prevent dirt, sedimentation and cause valve closing tight or damage, and compare with the fluted valve body in existing common gate valve bottom, reduced fluid resistance.Valve cavity (valve body and valve gap form jointly among Fig. 1) is topped nontoxic sprayed plastic coat.Valve rod 6 is a swingle, and countersunk head is among valve gap 9, and valve rod 6 top shape of cross sections are polygonal, can adopt the shape shown in Fig. 4: its three angles are all cut the equilateral triangle of a part, and institute cuts part and is isosceles triangle, and area equates.Valve rod 6 head special shapes, general tool can't open and close it, must could open and close with special tool.Protecting cover 13 is connected with valve gap 9 open top spirals; Protecting cover 13 top cambered surfaces are provided with two blind holes that match with special tool (referring to Fig. 5), and general tool can not be operated it, plays antitheft effect.Valve rod leak-proof structure is made up of O RunddichtringO 10, packing ring 11, gland 12.Boss folder on the valve rod 6 leans against between the fin lower edge and liner 8 (Cuprum alloy material) of valve gap 9, and liner 8 places on the back-up ring 7; Back-up ring 7 is embedded among the draw-in groove of valve gap 9.Whole flashboard 2 (referring to Fig. 2 Fig. 3) is gone up cladding one deck nontoxic elastic material, preferably adopts rubber (other is as nontoxic rubber and plastic material, the elastic plastic material of health level etc.).Flashboard 2 wedge shape flashboard preferably shown in Figure 3 (its sealing surface is a wedge shape).Flashboard 2 connects firmly through Cock screw 4 and nut 3, and nut 3 connects with valve rod 6 spirals, constitutes the spiral motion pair.In the use, during Open valve, use the special instrument protecting cover of outwarding winding, use special tool turn valve rod 6, valve rod 6 is pressed against rotation on the liner 8, and nut 3 drives flashboards 2 and rises along the valve rod spiral, and valve is the unlatching situation; During throttle down, the counterrotating valve rod, nut 3 drives under flashboard 2 screws, finishes the valve closing operation.
Compare with existing common gate valve, this is novel to have following features and advantage: 1, valve cavity and outer surface all adopt nothing The poison sprayed plastic coat, the cladding of flashboard is all-round excellent matter rubber, the part of other and medium contact all adopts stainless steel or copper alloy manufacturing, Has good etch resistant properties, not polluted water; 2, the keying of valve must be used special specific purpose tool, has to be convenient to management and anti-Steal function; 3, valve body lower portion is direct piping, and valve closing is tight, the fluid resistance minimum; 4, flexible disc sealing property Well. Flashboard adopts precision die once compressing, consistent fully exchange (the existing common gate valve of realizing of all paddle sizes Flashboard adopts base metal material or other metal material of built-up welding, and processing dimension can not guarantee in full accord, and flashboard and valve body are wanted One by one single pairing can not be exchanged); During maintenance, whole deck valve door must not pulled down from pipeline, valve gap need only be unloaded, just Can realize Fast-Maintenance and change flashboard, reduce maintenance man-hours and expense, reduce use cost.
Claims (10)
1, a kind of environment protection elastic soft seal theft-proof gate valve comprises valve body, and valve gap places the flashboard on the valve body fluid passage, the valve rod that connects with flashboard, and valve rod leak-proof structure is characterized in that, described whole flashboard (2) is gone up cladding one deck nontoxic elastic material; Described valve cavity is topped nontoxic sprayed plastic coat.
2, environment protection elastic soft seal theft-proof gate valve according to claim 1 is characterized in that, described flashboard (2) is the wedge-type flashboard; Described nontoxic elastic material is a rubber.
3, environment protection elastic soft seal theft-proof gate valve according to claim 1 and 2 is characterized in that, described valve rod (6) is a swingle, and countersunk head is among valve gap (9), and valve rod top shape of cross section is a polygonal.
4, environment protection elastic soft seal theft-proof gate valve according to claim 3 is characterized in that, described valve rod (6) top shape of cross section is all cut a part of equilateral triangle for its three angles, and it is that isosceles triangle and area equate that part is cut by institute.
5, environment protection elastic soft seal theft-proof gate valve according to claim 3 is characterized in that, described flashboard (2) connects firmly with a nut (3), and nut (3) connects with valve rod (6) spiral again, constitutes the spiral motion pair.
6, environment protection elastic soft seal theft-proof gate valve according to claim 5 is characterized in that, described flashboard (2) connects firmly through Cock screw (4) and nut (3).
7, environment protection elastic soft seal theft-proof gate valve according to claim 6 is characterized in that, boss on the described valve rod (6) folder leans against the fin lower edge of valve gap (9) and places between the liner (8) on the back-up ring (7); Ring washer (7) be embedded valve gap (9) draw-in groove among.
8, environment protection elastic soft seal theft-proof gate valve according to claim 3 is characterized in that, also comprises protecting cover (13), and protecting cover (13) connects with valve gap (9) open top spiral; Protecting cover (13) top cambered surface is provided with two blind holes.
9, environment protection elastic soft seal theft-proof gate valve according to claim 1 and 2 is characterized in that, the fluid passage in the described valve body (1) is a direct piping.
10, environment protection elastic soft seal theft-proof gate valve according to claim 1 and 2 is characterized in that, described valve body (1) adopts socket head screw (14) to be connected with valve gap (9), and is tight with sealing with wax in the countersunk seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245003 CN2586020Y (en) | 2002-12-03 | 2002-12-03 | Environmental protection flexible soft sealed centitheft gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245003 CN2586020Y (en) | 2002-12-03 | 2002-12-03 | Environmental protection flexible soft sealed centitheft gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2586020Y true CN2586020Y (en) | 2003-11-12 |
Family
ID=33716748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02245003 Expired - Fee Related CN2586020Y (en) | 2002-12-03 | 2002-12-03 | Environmental protection flexible soft sealed centitheft gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2586020Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369179A (en) * | 2016-12-05 | 2017-02-01 | 成都乘风阀门有限责任公司 | Structure of internally-surfaced gate valve |
| CN112728141A (en) * | 2021-01-14 | 2021-04-30 | 芜湖市金贸流体科技股份有限公司 | Buried elastic seat seal gate valve |
| CN114278747A (en) * | 2022-01-22 | 2022-04-05 | 芜湖市金贸流体科技股份有限公司 | Screw mouth soft seal gate valve capable of effectively reducing fluid resistance and use method |
-
2002
- 2002-12-03 CN CN 02245003 patent/CN2586020Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369179A (en) * | 2016-12-05 | 2017-02-01 | 成都乘风阀门有限责任公司 | Structure of internally-surfaced gate valve |
| CN112728141A (en) * | 2021-01-14 | 2021-04-30 | 芜湖市金贸流体科技股份有限公司 | Buried elastic seat seal gate valve |
| CN114278747A (en) * | 2022-01-22 | 2022-04-05 | 芜湖市金贸流体科技股份有限公司 | Screw mouth soft seal gate valve capable of effectively reducing fluid resistance and use method |
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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 |