CN202597731U - Tri-eccentric hard sealing worm gear butterfly valve - Google Patents
Tri-eccentric hard sealing worm gear butterfly valve Download PDFInfo
- Publication number
- CN202597731U CN202597731U CN 201220153762 CN201220153762U CN202597731U CN 202597731 U CN202597731 U CN 202597731U CN 201220153762 CN201220153762 CN 201220153762 CN 201220153762 U CN201220153762 U CN 201220153762U CN 202597731 U CN202597731 U CN 202597731U
- Authority
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- China
- Prior art keywords
- valve
- worm gear
- valve body
- butterfly
- valve rod
- 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 provides a tri-eccentric hard sealing worm gear butterfly valve which comprises a worm gear head, a packing gland, a bracket, a packing, a valve body, a shaft sleeve, a valve seat, a gland, a cylindrical pin, a valve rod, a butterfly plate, metal gaskets and a lower end cover and is characterized in that the bracket is arranged at the lower end of the worm gear head and is provided with the packing gland, the packing gland is fixedly connected to the bracket through a double end stud and a nut A, the valve body is arranged at the lower end of the bracket, the bracket and the valve body are fixedly connected through a bolt and a nut B to form a whole structure, the valve rod is arranged in the valve body, a shaft sleeve is arranged between the valve body and the valve rod, and the packing is arranged at the upper part of the shaft sleeve. According to the tri-eccentric hard sealing worm gear butterfly valve provided by the utility model, the valve seat and the butterfly plate are arranged in the valve, the valve seat is pressed by the gland and fixed to the butterfly plate by a screw A, the valve rod and the butterfly plate are fixed by the cylindrical pin to form a whole body, the lower end cover is arranged at the lowest end of the valve, and the metal gaskets are respectively added at the lower ends of the lower end cover and the valve body and fixedly connected by a screw B. The tri-eccentric hard sealing worm gear butterfly valve resists corrosion, abrasion flushing and high temperature.
Description
Technical field
The utility model belongs to valve and makes the field, especially relates to a kind of three eccentric hard sealing worm gear butterfly valves.
Background technique
The valve that the valve industry is generally used is metal valve; The existing history that goes up a century of the use of metal valve; Though metal valve receives the restriction of metallic material attribute through the improvement of structure and material, can not adapt to the demand of bad working environments such as increasingly high wearing and tearing, deep-etching; Be mainly reflected in the weak point in working life, reveal the stability that has seriously influenced system's operation greatly.Traditional metal valve is badly in need of reforming completely from aspects such as material, structure and manufacturing process.
The model utility content
The purpose of the utility model provides and a kind ofly can improve the corrosion-resistant, wear-resistant of valve greatly and wash away; And resistance to high temperature; Prolong the working life of valve greatly, improve Security, the stability of corollary equipment operational system, alleviated working strength of workers; Practiced thrift maintenance cost, three eccentric hard sealing worm gear butterfly valves of good economy performance.
The technological scheme of the utility model is: a kind of three eccentric hard sealing worm gear butterfly valves, comprise worm gear head, Gland, support, filler, valve body, axle sleeve, valve seat, gland, straight pin, valve rod, butterfly plate, metallic shim and lower end cap, and it is characterized in that: be provided with worm gear in the worm gear head; Worm gear and valve rod worm screw partly mesh, and worm gear head lower end is provided with support, and support is provided with Gland; Gland is fixedly connected on the support through stud and nut A, and the support lower end is provided with valve body, and it is an overall structure that support is fixedly connected through screw bolt and nut B with valve body; Be provided with valve rod in the valve body, be provided with axle sleeve between valve body and the valve rod, axle sleeve top is provided with filler; Be provided with valve seat and butterfly plate in the utility model chamber, valve seat is glanded to be pushed down, and is fixed on the butterfly plate with screw A; Valve rod is provided with four pin holes; Butterfly plate is provided with four cotter slots, and four straight pins are passed four pin holes on the valve rod respectively, four cotter slot bottom lands on butterfly plate; Valve rod and butterfly plate are fixed as one; The utility model is provided with lower end cap bottom, and lower end cap adds metallic shim with valve body lower end and is fixedly connected with screw B, and flow-passing surface has also installed wear-resisting pipe additional in the utility model valve body chamber.
Said filler is the Expanded graphite circle.
Said valve seat is a ceramic material.
Said metallic shim is that stainless steel adds Graphite pad.
Said wear-resisting pipe is a ceramic material.
Advantage and the good effect that the utlity model has are: improved the corrosion-resistant, wear-resistant of valve greatly and washed away; And resistance to high temperature, prolong working life of valve greatly, improve Security, the stability of corollary equipment operational system; Alleviated working strength of workers; Practiced thrift maintenance cost, good economy performance is the desirable alternative of the high gear valve of import.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure:
1, worm gear head 2, nut A 3, wear-resisting pipe 4, Gland 5, nut B
6, support 7, filler 8, valve body 9, axle sleeve 10, valve seat
11, gland 12, screw A 13, straight pin 14, valve rod 15, butterfly plate
16, metallic shim 17, screw B 18, lower end cap
Embodiment
Preferred embodiment in the face of the utility model is elaborated down.
As shown in Figure 1, the utility model provides a kind of three eccentric hard sealing worm gear dish valves, comprises worm gear head 1, Gland 4, support 6, filler 7, valve body 8, axle sleeve 9, valve seat 10, gland 11, straight pin 13, valve rod 14, butterfly plate 15, metallic shim 16 and lower end cap 18; It is characterized in that: be provided with worm gear in the worm gear head 1, worm gear and valve rod 14 worm screws partly mesh, and worm gear head lower end is provided with support 6; Support 6 is provided with Gland 4, and Gland 4 is fixedly connected on the support 6 through stud and nut A2, and support 6 lower ends are provided with valve body 8; It is an overall structure that support 6 is fixedly connected through screw bolt and nut B5 with valve body 8, is provided with valve rod 14 in the valve body 8, is provided with axle sleeve 9 between valve body 8 and the valve rod 14; Axle sleeve 9 tops are provided with filler 7, are provided with valve seat 10 and butterfly plate 15 in the utility model chamber, and valve seat 10 is glanded 11 and pushes down; And be fixed on the butterfly plate 15 with screw A12, valve rod 14 is provided with four pin holes, and butterfly plate 15 is provided with four cotter slots; Four straight pins 13 are passed four pin holes on the valve rod 14 respectively; Four cotter slot bottom lands on butterfly plate 15 are fixed as one valve rod 14 and butterfly plate 15, and the utility model is provided with lower end cap 18 bottom; Lower end cap 18 adds metallic shim 16 with valve body 8 lower ends and is fixedly connected with screw B17, and flow-passing surface has also installed wear-resisting pipe 3 additional in the utility model valve body 8 chambeies.
Said filler 7 is the Expanded graphite circle.
Said valve seat 10 is a ceramic material.
Said metallic shim 16 adds Graphite pad for stainless steel.
Said wear-resisting pipe 3 is a ceramic material.
More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.
Claims (4)
1. an eccentric hard sealing worm gear butterfly valve comprises worm gear head, Gland, support, filler, valve body, axle sleeve, valve seat, gland, straight pin, valve rod, butterfly plate, metallic shim and lower end cap, it is characterized in that: be provided with worm gear in the worm gear head; Worm gear and valve rod worm screw partly mesh, and worm gear head lower end is provided with support, and support is provided with Gland; Gland is fixedly connected on the support through stud and nut A, and the support lower end is provided with valve body, and it is an overall structure that support is fixedly connected through screw bolt and nut B with valve body; Be provided with valve rod in the valve body, be provided with axle sleeve between valve body and the valve rod, axle sleeve top is provided with filler; Be provided with valve seat and butterfly plate in the utility model chamber, valve seat is glanded to be pushed down, and is fixed on the butterfly plate with screw A; Valve rod is provided with four pin holes, and butterfly plate is provided with four cotter slots, and four straight pins are passed four pin holes on the valve rod respectively; Four cotter slot bottom lands on butterfly plate are fixed as one valve rod and butterfly plate, and the utility model is provided with lower end cap bottom; Lower end cap adds metallic shim with valve body lower end and is fixedly connected with screw B, and flow-passing surface has also installed wear-resisting pipe additional in the utility model chamber.
2. according to claim 1 a kind of three eccentric hard sealing worm gear butterfly valves, it is characterized in that: said filler is the Expanded graphite circle.
3. according to claim 1 a kind of three eccentric hard sealing worm gear butterfly valves, it is characterized in that: said valve seat is a ceramic material.
4. according to claim 1 a kind of three eccentric hard sealing worm gear butterfly valves, it is characterized in that: said wear-resisting pipe is a ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153762 CN202597731U (en) | 2012-04-09 | 2012-04-09 | Tri-eccentric hard sealing worm gear butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153762 CN202597731U (en) | 2012-04-09 | 2012-04-09 | Tri-eccentric hard sealing worm gear butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597731U true CN202597731U (en) | 2012-12-12 |
Family
ID=47315270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220153762 Expired - Fee Related CN202597731U (en) | 2012-04-09 | 2012-04-09 | Tri-eccentric hard sealing worm gear butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154304A (en) * | 2014-08-18 | 2014-11-19 | 南通常测机电股份有限公司 | Exhaust back pressure valve |
-
2012
- 2012-04-09 CN CN 201220153762 patent/CN202597731U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154304A (en) * | 2014-08-18 | 2014-11-19 | 南通常测机电股份有限公司 | Exhaust back pressure valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140409 |