CN203477400U - Double-piece two-way seal knife gate valve - Google Patents
Double-piece two-way seal knife gate valve Download PDFInfo
- Publication number
- CN203477400U CN203477400U CN201320605189.8U CN201320605189U CN203477400U CN 203477400 U CN203477400 U CN 203477400U CN 201320605189 U CN201320605189 U CN 201320605189U CN 203477400 U CN203477400 U CN 203477400U
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- China
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- valve
- valve body
- flashboard
- stuffing box
- knife gate
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- Expired - Fee Related
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Abstract
The utility model discloses a double-piece two-way seal knife gate valve. According to the technical scheme, the double-piece two-way seal knife gate valve comprises a valve body, a valve seat arranged on the valve body, a gate segment, a support, a valve rod and a hand wheel, wherein the valve rod and the hand wheel are arranged on the support. One end of the valve rod is connected with the gate segment, and the other end of the valve rod is connected with the hand wheel in a linkage mode; the valve body comprises a left valve body and a right valve body which are connected in a riveting mode; a groove is formed in the portion, corresponding to the joint of the left valve body and the right valve body, of the valve seat and is matched with the gate segment in size; the groove is filled with an elastic sealing element, and the portion, corresponding to the opening of the groove, of the elastic sealing element is flush with the valve seat; a stuffing box and a stuffing box gland used for sealing the opening of the stuffing box are arranged on the side, corresponding to the support, of the valve body and are provided with through holes respectively, wherein the gate segment can penetrate through the through holes, stuffing is arranged in the stuffing box, and an elastic element is arranged between the stuffing and the stuffing box. Because the double-piece two-way seal knife gate valve is provided with the left valve body and the right valve body, production and machining are facilitated, meanwhile, impurities can be effectively prevented from accumulating on the valve seat, and sealing performance is good.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of two-piece type two way sealed knife gate valve.
Background technique
Cutter type gate valve is mainly as regulating and cut-off device, be applied on the pipelines such as tap water, sewage, building, oil, chemical industry, food, medicine, light textile, electric power, boats and ships, metallurgy, energy system, it is on the basis of common gate valve, changes dull and stereotyped valve plate into knife type valve plate; The problems such as cutter type gate valve is little with its volume, flow resistance is little, lightweight, easy installation, the advantage such as quick detachable have solved the class valves such as common gate valve, plate valve, ball valve, stop valve, modulating valve, butterfly valve flow resistance is large, weight large, difficultly install, floor space is large.
Cutter type gate valve in the market, what have is provided with groove on valve seat, flashboard embeds in groove and coordinates the effect that sealing is dammed that realizes with Sealing, and then this cutter type gate valve in use exists valve body and valve seat to be difficult for processing, and fluid impurity is easily piled up in groove; And the cutter type gate valve also having, its valve base inner wall makes inner wall sealing face smooth by fine finishing, flashboard is directly conflicted to realize with valve base inner wall and is sealed, yet this fine finishing difficulty is higher, and when this cutter type gate valve is applied to dam some fluids with solid particle, due to washing away for a long time with solid particle fluid, make valve base sealing surface wear, cause poor sealing, affect the working life of valve, still there is improved space in cutter type gate valve of the prior art therefore.
Model utility content
The deficiency existing for prior art, the utility model provides a kind of two-piece type two way sealed knife gate valve, and this two-piece type two way sealed knife gate valve is provided with left and right two valve bodies, facilitates production and processing, can effectively avoid impurity on valve seat to pile up simultaneously, and favorable sealing property.
For achieving the above object, the utility model provides following technological scheme: a kind of two-piece type two way sealed knife gate valve, comprise valve body, be located at the valve seat on valve body, flashboard, support and be located at valve rod and the handwheel on support, valve rod one end is connected with flashboard, the other end and handwheel are connected, valve body comprises left valve barrel and right valve barrel, left valve barrel and right valve barrel riveting, the joint of the corresponding left valve barrel of valve seat and right valve barrel is provided with groove, the size of groove and described flashboard are suitable, in groove, fill up elastomer seal, elastomer seal respective slot aperture position and valve seat flush.
By adopting technique scheme, valve body comprises left valve barrel and right valve barrel, and left valve barrel and right valve barrel riveting, by the setting of left and right two valve bodies, make the easier production and processing of this two-piece type two way sealed knife gate valve; The joint of the corresponding left valve barrel of valve seat and right valve barrel is provided with groove, the size of groove and described flashboard are suitable, in groove, fill up elastomer seal, elastomer seal respective slot aperture position and valve seat flush, when this gate valve is closed, flashboard and elastomer seal are conflicted and are embedded in groove, reach sealing effect; When this gate valve is opened, elastomer seal resets under elastic potential energy effect, and elastomer seal is mutually concordant with slot opening, has effectively avoided impurity particle to pile up on valve seat.
The utility model is further set to, corresponding support one side of described valve body is provided with the Gland of stuffing box and shutoff stuffing box opening, stuffing box and Gland are equipped with the through hole passing for flashboard, are provided with filler in stuffing box, between filler and stuffing box, are provided with elastic component.
By adopting technique scheme, filler is arranged in stuffing box by Gland shutoff, and flashboard is arranged on stuffing box and Gland by through hole, and the inconsistent realization sealing of filler and flashboard prevents that flowing medium from going out to spill from stuffing box; Between filler and stuffing box, be provided with elastic component, guarantee the contact force between filler and flashboard, further strengthened the seal action of filler.
The utility model is further set to, and is provided with the spacing block set that prevents that elastomer seal from deviating from described groove.
By adopting technique scheme, spacing block set makes elastomer seal more solid and reliable with being connected of valve body, avoid elastomer seal to deviate from valve body in valve body working procedure and affect its sealability, guaranteeing that the service behaviour of this two-piece type two way sealed knife gate valve is more stable.
The utility model is further set to, and the corresponding valve rod of described flashboard one end is threaded connection part and threaded stem is in transmission connection.
By adopting technique scheme, when opening or closing this gate valve, by pulling handwheel, be with ovable valve stem to rotate, valve rod is threaded connection part and the transmission of flashboard screw thread, thereby while realizing valve rod rotation, drive flashboard to rise or decline, and then controlling the keying of this gate valve.
The utility model is further set to, and described valve body is made by spheroidal graphite cast iron, and valve body surface is provided with epoxy resin baking vanish coating.
By adopting technique scheme, valve body is made by spheroidal graphite cast iron, makes valve body have good shock resistance, and Wear-resistant corrosion-resistant; Valve body surface is provided with epoxy resin baking vanish coating, makes valve body surface nontoxic, and health is anticorrosive, and specious.
The utility model is further set to, and described flashboard is made by stainless steel material.
By adopting technique scheme, flashboard is made by stainless steel material, avoids flowing medium to cause corrosion to flashboard and affects the sealability of this gate valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model two-piece type two way sealed knife gate valve while closing;
Fig. 2 is the A portion enlarged view of Fig. 1;
Structural representation when Fig. 3 is the unlatching of the utility model two-piece type two way sealed knife gate valve;
Fig. 4 is the B portion enlarged view of Fig. 3.
Reference character: 1, valve body; 11, left valve barrel; 12, right valve barrel; 2, valve seat; 3, support; 4, valve rod; 5, handwheel; 6, groove; 61, elastomer seal; 62, spacing block set; 7, stuffing box; 71, Gland; 72, filler; 73, elastic component; 8, flashboard; 9, threaded connector.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model two-piece type two way sealed knife gate valve embodiment is described further.
A kind of two-piece type two way sealed knife gate valve, comprise valve body 1, be located at valve seat 2, flashboard 8, the support 3 on valve body 1 and be located at valve rod 4 and the handwheel 5 on support 3, valve rod 4 one end are connected with flashboard 8, the other end and handwheel 5 are connected, valve body 1 comprises left valve barrel 11 and right valve barrel 12, left valve barrel 11 and right valve barrel 12 rivetings, the joint of the corresponding left valve barrel 11 of valve seat 2 and right valve barrel 12 is provided with groove 6, the size of groove 6 and described flashboard 8 are suitable, in groove 6, fill up elastomer seal 61, elastomer seal 61 respective slot 6 aperture positions and valve seat 2 flush.
By adopting technique scheme, when opening this gate valve, flashboard 8 is subject to the mechanical compression effect of valve rod 4, be pressed in the groove 6 on valve seat 2, be close to and realize sealing with elastomer seal 61, by pulling handwheel 5 band ovable valve stem 4 interlocks, valve rod 4 drives flashboard 8 to move upward, and flashboard 8 moves apart elastomer seal 61 this gate valve is opened; When closing this gate valve, rotate backward handwheel 5 band ovable valve stem 4 interlocks, valve rod 4 drives flashboard 8 to move downward, and flashboard 8 is moved to groove 6 places and be close to and realize sealing with elastomer seal 61; Valve body 1 comprises left valve barrel 11 and right valve barrel 12, and left valve barrel 11 and right valve barrel 12 rivetings, by the setting of left and right two valve bodies 1, make the easier production and processing of this two-piece type two way sealed knife gate valve; The joint of the corresponding left valve barrel 11 of valve seat 2 and right valve barrel 12 is provided with groove 6, the size of groove 6 and described flashboard 8 are suitable, in groove 6, fill up elastomer seal 61, elastomer seal 61 respective slot 6 aperture positions and valve seat 2 flush, when this gate valve is closed, flashboard 8 is conflicted and embeds in groove 6 with elastomer seal 61, reaches sealing effect; When this gate valve is opened, elastomer seal 61 resets under elastic potential energy effect, and elastomer seal 61 is mutually concordant with groove 6 openings, has effectively avoided impurity particle to pile up on valve seat 2.
Corresponding support 3 one sides of described valve body 1 are provided with the Gland 71 of stuffing box 7 and shutoff stuffing box 7 openings, and stuffing box 7 and Gland 71 are equipped with the through hole passing for flashboard 8, are provided with filler 72 in stuffing box 7, between filler 72 and stuffing box 7, are provided with elastic component 73.
By adopting technique scheme, filler 72 is arranged in stuffing box 7 by Gland 71 shutoff, flashboard 8 is arranged on stuffing box 7 and Gland 71 by through hole, and filler 72 and the inconsistent realization sealing of flashboard 8 prevent that flowing medium from going out to spill from stuffing box 7; Between filler 72 and stuffing box 7, be provided with elastic component 73, this elastic component 73 can be spring, shell fragment or other elastic materials, guarantees the contact force between filler 72 and flashboard 8, has further strengthened the seal action of filler 72.
In described groove 6, be provided with the spacing block set 62 that prevents that elastomer seal 61 from deviating from.
By adopting technique scheme, spacing block set 62 makes elastomer seal 61 more solid and reliable with being connected of valve body 1, avoid elastomer seal 61 to deviate from valve body 1 in valve body 1 working procedure and affect its sealability, guaranteeing that the service behaviour of this two-piece type two way sealed knife gate valve is more stable.
The corresponding valve rod of described flashboard 84 one end are threaded connection part 9 and are in transmission connection with valve rod 4 screw threads.
By adopting technique scheme, when opening or closing this gate valve, by pulling handwheel 5, be with ovable valve stem 4 to rotate, valve rod 4 is threaded connection part 9 and flashboard 8 screw thread transmissions, thereby while realizing valve rod 4 rotation, drive flashboard 8 to rise or decline, and then control the keying of this gate valve.
Described valve body 1 is made by spheroidal graphite cast iron, and valve body 1 surface is provided with epoxy resin baking vanish coating.
By adopting technique scheme, valve body 1 is made by spheroidal graphite cast iron, makes valve body 1 have good shock resistance, and Wear-resistant corrosion-resistant; Valve body 1 surface is provided with epoxy resin baking vanish coating, makes valve body 1 surface poisonless, and health is anticorrosive, and specious.
Described flashboard 8 is made by stainless steel material.
By adopting technique scheme, flashboard 8 is made by stainless steel material, avoids flowing medium to cause corrosion to flashboard 8 and affects the sealability of this gate valve.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a two-piece type two way sealed knife gate valve, comprise valve body, be located at valve seat, flashboard, the support on valve body and be located at valve rod and the handwheel on support, valve rod one end is connected with flashboard, the other end and handwheel are connected, it is characterized in that: described valve body comprises left valve barrel and right valve barrel, left valve barrel and right valve barrel riveting, the joint of the corresponding left valve barrel of described valve seat and right valve barrel is provided with groove, the size of groove and described flashboard are suitable, in groove, fill up elastomer seal, elastomer seal respective slot aperture position and valve seat flush.
2. a kind of two-piece type two way sealed knife gate valve according to claim 1, it is characterized in that: corresponding support one side of described valve body is provided with the Gland of stuffing box and shutoff stuffing box opening, stuffing box and Gland are equipped with the through hole passing for flashboard, in described stuffing box, be provided with filler, between filler and stuffing box, be provided with elastic component.
3. a kind of two-piece type two way sealed knife gate valve according to claim 1 and 2, is characterized in that: in described groove, be provided with the spacing block set that prevents that elastomer seal from deviating from.
4. a kind of two-piece type two way sealed knife gate valve according to claim 3, is characterized in that: the corresponding valve rod of described flashboard one end is threaded connection part and threaded stem is in transmission connection.
5. a kind of two-piece type two way sealed knife gate valve according to claim 4, is characterized in that: described valve body is made by spheroidal graphite cast iron, and valve body surface is provided with epoxy resin baking vanish coating.
6. a kind of two-piece type two way sealed knife gate valve according to claim 5, is characterized in that: described flashboard is made by stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605189.8U CN203477400U (en) | 2013-09-27 | 2013-09-27 | Double-piece two-way seal knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605189.8U CN203477400U (en) | 2013-09-27 | 2013-09-27 | Double-piece two-way seal knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477400U true CN203477400U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605189.8U Expired - Fee Related CN203477400U (en) | 2013-09-27 | 2013-09-27 | Double-piece two-way seal knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477400U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594350A (en) * | 2017-03-03 | 2017-04-26 | 上海巨良电磁阀制造有限公司 | Knife gate type high-temperature zero-leakage electromagnetic valve |
| CN107542941A (en) * | 2017-09-13 | 2018-01-05 | 中国船舶重工集团公司第七〇九研究所 | A kind of valve seat back springing type gate valve |
| CN108051155A (en) * | 2017-12-06 | 2018-05-18 | 霍山嘉远智能制造有限公司 | A kind of water-pressure sealed method of two halves knife valve |
| CN108547988A (en) * | 2018-04-03 | 2018-09-18 | 云峰科技（北京）有限公司 | A kind of knife gate valve of flashboard week side seal |
-
2013
- 2013-09-27 CN CN201320605189.8U patent/CN203477400U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594350A (en) * | 2017-03-03 | 2017-04-26 | 上海巨良电磁阀制造有限公司 | Knife gate type high-temperature zero-leakage electromagnetic valve |
| CN106594350B (en) * | 2017-03-03 | 2024-03-15 | 上海巨良电磁阀制造有限公司 | Knife switch type high temperature zero leakage electromagnetic valve |
| CN107542941A (en) * | 2017-09-13 | 2018-01-05 | 中国船舶重工集团公司第七〇九研究所 | A kind of valve seat back springing type gate valve |
| CN108051155A (en) * | 2017-12-06 | 2018-05-18 | 霍山嘉远智能制造有限公司 | A kind of water-pressure sealed method of two halves knife valve |
| CN108051155B (en) * | 2017-12-06 | 2019-09-27 | 霍山嘉远智能制造有限公司 | A kind of water-pressure sealed method of two halves knife valve |
| CN108547988A (en) * | 2018-04-03 | 2018-09-18 | 云峰科技（北京）有限公司 | A kind of knife gate valve of flashboard week side seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20180927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |