CN105134972A - Novel check valve - Google Patents
Novel check valve Download PDFInfo
- Publication number
- CN105134972A CN105134972A CN201510516806.0A CN201510516806A CN105134972A CN 105134972 A CN105134972 A CN 105134972A CN 201510516806 A CN201510516806 A CN 201510516806A CN 105134972 A CN105134972 A CN 105134972A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- rotating shaft
- shrouding
- movable cavity
- 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.)
- Withdrawn
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
- F16K1/04—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
Abstract
The invention relates to a novel check valve. The novel check valve is characterized by further comprising a sealing plate, a valve deck and a rotating shaft; the sealing plate is connected to an opening of the top of the valve body; the valve deck is connected to the top of the sealing plate; a sealing cavity is defined between the valve deck and the sealing plate; the upper portion of the valve rod penetrates out of the sealing plate and is located in the sealing cavity; the valve rod and the sealing plate are in threaded connection; the valve deck is provided with a movable cavity for the valve rod to ascend and descend; the top of the valve rod is located in the movable cavity; a sealing ring is arranged on the peripheral wall of the movable cavity; a pressing nut is arranged on the top of the movable cavity; the bottom of the pressing nut is tightly pressed on the sealing ring; and a dustproof cover is arranged on the top of the pressing nut. According to the novel check valve, a hand wheel is independently arranged on the rotating shaft, the rotating shaft and the valve rod are provided with a driving gear and a driven gear which are meshed respectively, opening and closing of the check valve mean ascending and descending of a valve clack, the hand wheel and the valve rod do not occupy space any more, and therefore people can conveniently operate the novel check valve in places with small space.
Description
Technical field
The present invention relates to a kind of novel cutoff valve.
Background technique
Stop valve is often installed on the pipeline of water supply, air feed and heating, for the flowing medium carried in cutting out pipeline.Conventional stop valve generally comprises valve body, valve rod, flap and be connected to the handwheel of valve stem top, stem lower portion is arranged in body cavity, flap is connected to stem bottom, we know, flap is the open-shut device of stop valve, its effect is similar to a stopper, can be pressed on the sealing surface that is provided with in body cavity, when opening/shutting valve, rotation hand wheel, flap just can do elevating movement by the vertical center line along sealing surface under the drive of valve rod, final away from sealing surface or be pressed on sealing surface, realize the keying of valve, according to this forms of motion of flap, the size of valve openings and the stroke direct proportionality of flap, what namely valve rod drove flap to rise is higher, the opening of valve is also larger, otherwise it is less.Clearly, the functional reliability of existing stop valve is unquestionable, but problem is: the lifting of handwheel and valve rod can take certain space, if stop valve is just arranged on less place, space, just meet above handwheel or around again and have object, then be not easy to very much people operate on it, even the lifting of handwheel and valve rod also can be restricted.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of technological scheme of novel cutoff valve.
Described a kind of novel cutoff valve, comprise valve body, valve rod, flap and handwheel, described valve body is provided with intake tunnel and exhalant canal, described stem lower portion is arranged in body cavity, described flap is connected to stem bottom, characterized by further comprising shrouding, valve gap and rotating shaft, described shrouding is connected to body top open-mouth, described valve gap is connected to shrouding top, a Seal cage is with between described valve gap and shrouding, Seal cage is positioned at after described valve rod top passes shrouding, valve rod is threaded with shrouding, described valve gap is provided with the movable cavity for valve rod lifting, valve stem top is positioned at movable cavity, movable cavity perisporium is provided with seal ring, gland nut is equipped with at movable cavity top, be pressed on bottom gland nut on seal ring, dust cover is equipped with at gland nut top.
Described a kind of novel cutoff valve, is characterized in that described rotating shaft is positioned at Seal cage and parallel with valve rod, is rotatably connected with shrouding bottom rotating shaft, in the middle part of rotating shaft, driving gear is housed.
Described a kind of novel cutoff valve, it is characterized in that described valve rod being equipped with the driven gear be meshed with driving gear, rotating shaft top is connected with handwheel after passing valve gap, and rotating shaft top and valve gap are rotatably connected.
The present invention and prior art handwheel are connected to valve stem top, when causing opening/shutting valve, it is different that valve rod one lifting followed by handwheel, handwheel is contained in separately in rotating shaft by stop valve of the present invention, and an intermeshing driving gear and driven gear are installed respectively in rotating shaft and valve rod, when opening/shutting valve, rotation hand wheel, axis of rotation, driving gear by transmission of torque to driven gear, valve rod drives flap to rise, flap is away from the sealing surface in body cavity, valve opening, if opposite spin handwheel, valve rod drives flap to decline, final flap is pressed on sealing surface, valve closing, in the whole process of opening/shutting valve, we are not difficult to find out, what be elevated is only valve rod, driven gear and flap, handwheel only rotates and is not together elevated with it, and the lifting of valve rod is only up and down in movable cavity, valve body is not exposed in its top, therefore, the keying of stop valve of the present invention, the i.e. lifting of flap, handwheel and valve rod will no longer take up room, and then be greatly convenient for people to the place less in space and operate on it.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described:
As shown in Figure 1, in this embodiment, stop valve of the present invention comprises valve body 7, flap 6, valve rod 12, shrouding 10, valve gap 13, rotating shaft 3 and handwheel 1, valve body 7 is provided with intake tunnel 8 and exhalant canal 5, valve rod 12 bottom is arranged in valve body 7 inner chamber, flap 6 is connected to bottom valve rod 12, shrouding 10 is bolted at valve body 7 open-topped place, valve gap 13 is bolted at shrouding 10 top, sealing gasket 9 is provided with between shrouding 10 and valve body 7 and between valve gap 13 and shrouding 10, a Seal cage 14 is with between valve gap 13 and shrouding 10, Seal cage 14 is positioned at after valve rod 12 top passes shrouding 10, valve rod 12 is threaded with shrouding 10, valve gap 13 is provided with the movable cavity 2 be elevated for valve rod 12, the axial length of this movable cavity 2 can be arranged according to the lifting travel of flap 6 and valve rod 12, be a bit larger tham its stroke, valve rod 12 top is positioned at movable cavity 2, movable cavity 2 perisporium is provided with seal ring 15, after valve is closed completely, still some is stayed in movable cavity 2 and contacts with seal ring 15 at valve rod 12 top, to guarantee sealing, when after valve opening, valve rod 12 rises, the axial length that valve rod 12 is positioned at movable cavity 2 can increase greatly, sealability is strengthened, ensure that the sealing after valve opening, gland nut 16 is equipped with at movable cavity 2 top, be pressed on seal ring 15 bottom gland nut 16, dust cover 17 is equipped with at gland nut 16 top, the effect of dust cover 17 prevents extraneous dust from entering in movable cavity 2, rotating shaft 3 is positioned at Seal cage 14 and parallel with valve rod 12, be rotatably connected by bearing and shrouding 10 bottom rotating shaft 3, driving gear 4 is housed in the middle part of rotating shaft 3, the driven gear 11 be meshed with driving gear 4 valve rod 12 is equipped with, the axial length of driving gear 4 is greater than the axial length of driven gear 11, concrete length can be arranged according to the lifting travel of flap 6 and valve rod 12, in a specific embodiment, the axial length of driving gear 4 is 6 times of driven gear 11 axial length, rotating shaft 3 top is connected with handwheel 1 after passing valve gap 13, rotating shaft 3 top is rotatably connected by bearing and valve gap 13, Sealing is provided with between rotating shaft 3 and valve gap 13.
The using method of stop valve of the present invention is: as shown in Figure 1, when being rotated counterclockwise handwheel 1, rotating shaft 3 is rotated thereupon, driving gear 4 by transmission of torque to driven gear 11, valve rod 12 drives flap 6 spiral, flap 6 is away from the sealing surface in valve body 7 inner chamber, and intake tunnel 8 and exhalant canal 5 are connected, valve opening; Otherwise if turn clockwise handwheel 1, valve rod 12 drives flap 6 spiral to decline, and final flap 6 is pressed on sealing surface, intake tunnel 8 and exhalant canal 5 disconnect, valve closing.
Claims (3)
1. a novel cutoff valve, comprise valve body, valve rod, flap and handwheel, described valve body is provided with intake tunnel and exhalant canal, described stem lower portion is arranged in body cavity, described flap is connected to stem bottom, characterized by further comprising shrouding, valve gap and rotating shaft, described shrouding is connected to body top open-mouth, described valve gap is connected to shrouding top, a Seal cage is with between described valve gap and shrouding, Seal cage is positioned at after described valve rod top passes shrouding, valve rod is threaded with shrouding, described valve gap is provided with the movable cavity for valve rod lifting, valve stem top is positioned at movable cavity, movable cavity perisporium is provided with seal ring, gland nut is equipped with at movable cavity top, be pressed on bottom gland nut on seal ring, dust cover is equipped with at gland nut top.
2. a kind of novel cutoff valve according to claim 1, is characterized in that described rotating shaft is positioned at Seal cage and parallel with valve rod, is rotatably connected with shrouding bottom rotating shaft, in the middle part of rotating shaft, driving gear is housed.
3. a kind of novel cutoff valve according to claim 2, it is characterized in that described valve rod being equipped with the driven gear be meshed with driving gear, rotating shaft top is connected with handwheel after passing valve gap, and rotating shaft top and valve gap are rotatably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516806.0A CN105134972A (en) | 2015-08-21 | 2015-08-21 | Novel check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516806.0A CN105134972A (en) | 2015-08-21 | 2015-08-21 | Novel check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105134972A true CN105134972A (en) | 2015-12-09 |
Family
ID=54720446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510516806.0A Withdrawn CN105134972A (en) | 2015-08-21 | 2015-08-21 | Novel check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965006A (en) * | 2018-01-18 | 2018-04-27 | 泉州市泉港星图人工智能科技研究所 | Modified open air above ground hydrant and its method of work |
| CN110469713A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of adjustable type shut-off valve |
-
2015
- 2015-08-21 CN CN201510516806.0A patent/CN105134972A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965006A (en) * | 2018-01-18 | 2018-04-27 | 泉州市泉港星图人工智能科技研究所 | Modified open air above ground hydrant and its method of work |
| CN110469713A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of adjustable type shut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151209 |
|
| WW01 | Invention patent application withdrawn after publication |