CN202396250U - Discharge pressure regulating valve - Google Patents
Discharge pressure regulating valve Download PDFInfo
- Publication number
- CN202396250U CN202396250U CN2011205627872U CN201120562787U CN202396250U CN 202396250 U CN202396250 U CN 202396250U CN 2011205627872 U CN2011205627872 U CN 2011205627872U CN 201120562787 U CN201120562787 U CN 201120562787U CN 202396250 U CN202396250 U CN 202396250U
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- China
- Prior art keywords
- valve
- pressure control
- control channel
- hydraulic pressure
- water
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- 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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- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a discharge pressure regulating valve, which comprises a valve body. The valve body is provided with a water inlet passage at one end and a water discharge passage at the other end. The valve body is further provided with a water pressure control passage comprising a valve port. The water inlet passage and the water discharge passage are communicated with each other through the valve port. A valve seat with a middle through hole is reserved in the water pressure control passage. A valve stem approximately in an inverted T shape is sleeved on the middle through hole of the valve seat. The lower end of the valve stem is disposed at the valve port. A cylindrical nut is connected with the water pressure control passage in a threaded manner. The inner top of the cylindrical nut mutually acts with the top end of the valve stem through a compression spring. Water seal is formed between the valve stem and the outer side of the water pressure control passage. An air hole is reserved at the inner top of the cylindrical nut. Pressure difference between the water inlet end and the water discharge end of the discharge pressure regulating valve can be conveniently and optionally adjusted within a large certain range, and the discharge pressure regulating valve is widely applicable and helps to reduce service cost.
Description
Technical field
The utility model relates to waterpower adjustment valve technology field, especially a kind of discharge pressure control valve of irrigating usefulness.
Background technology
Agricultural irrigation generally is to match to use or annotate with irrigation installation to irritate time control and make the water yield and discharge pressure with the discharge pressure control valve; Help protecting the usefulness of irrigation installation, performance irrigation installation; Annotating the effect that can play water saving when irritating, but existing most of discharge pressure control valves of irrigating usefulness, and the pressure reduction of its water inlet and water side is fixing; The control valve of indivedual scalable pressure reduction; Adjustable extent is little and adjustment is inconvenient, and when so just being difficult to satisfy intake pressure and variation occurring or the use needs when needing the Different Irrigation operating mode, the scope of application is less; Different irrigation installations will be selected the control valve of different pressures grade for use simultaneously, and consumption worker consuming time increases use cost.
The utility model content
The technical problem that the utility model will solve provides a kind of discharge pressure control valve, and the pressure reduction of its water inlet and water side can freely be adjusted within the specific limits, and is easy to adjust and adjusting range is bigger, applied widely, helps reducing use cost.
For achieving the above object, the technical scheme of the utility model is: a kind of discharge pressure control valve comprises valve body; One end of valve body is provided with intake tunnel, and the other end of valve body is provided with exhalant canal, also is provided with hydraulic pressure control channel on the valve body; Hydraulic pressure control channel comprises a valve port, and described intake tunnel and exhalant canal are connected through valve port, and the valve seat that has through hole in the middle of is arranged in the hydraulic pressure control channel; Be with on the intermediate throughholes of valve seat one be roughly inverted T-shaped valve rod; The lower end of valve rod places the valve port place, and a cylindrical shape nut is connected through screw thread with hydraulic pressure control channel, applies active force each other through a compression spring between the top that the cylindrical shape nut is inboard and the top of valve rod; The outside water-stop that forms of valve rod and hydraulic pressure control channel, the inboard top of cylindrical shape nut is provided with air-vent.
Further improve; The fixed cover of the fixing tubulose in the top of described hydraulic pressure control channel; The fixed cover outer surface of upper is provided with one section external screw thread, and the cylindrical shape nut is spun on the external screw thread of fixed cover outer surface of upper, and the compression spring is in the middle of the fixed cover; The open stroke of screw thread can be longer like this, makes that the adjusting range of pressure is bigger.
Lock through screw thread with the top of hydraulic pressure control channel mutually the bottom of preferred described fixed cover; The lower surface of fixed cover also is pressed with a sealing gasket; The installation of fixed cover and hydraulic pressure control channel is more convenient like this, and makes valve rod and hydraulic pressure control channel outside form water-stop.
Further improve again; A spring base is fixed on the top of described valve rod, the fixing push rod in top that the cylindrical shape nut is inboard, and described compression spring one end is against on the spring base, the other end is enclosed within on the push rod; Can prevent to compress the top that spring breaks away from valve rod, improve pressure controlled reliability.
Further improve again, said hydraulic pressure control channel with respect to intake tunnel and exhalant canal for being obliquely installed.
The utility model moves up and down with respect to hydraulic pressure control channel through the cylindrical shape nut; Make the compression spring compress or open; Apply different power by the compression spring to valve rod again, thus the pressure reduction of adjustment valve inleting water passage and exhalant canal, and the pressure reduction of its water inlet and water side just can freely be adjusted within the specific limits; Through the cylindrical shape nut clockwise or be rotated counterclockwise the reaction force of adjusting the compression spring, its adjustment is more convenient and adjusting range is bigger; Bigger because of the adjusting range of its discharge pressure simultaneously, just can adapt to the more multiple irrigation installation or the needs of different operating modes, applied widely, help reducing use cost.
Description of drawings
Fig. 1 is that the utility model discharge pressure is peaked structure cutaway view;
Fig. 2 is that the utility model discharge pressure is the structure cutaway view of minimum of a value.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the utility model is done further explain.
Shown in Figure 1, a kind of discharge pressure control valve comprises valve body 10; One end of valve body 10 is provided with intake tunnel 1; The other end of valve body 10 is provided with exhalant canal 2, also is provided with hydraulic pressure control channel 3 on the valve body 10, and hydraulic pressure control channel 3 can be obliquely installed with respect to intake tunnel 1 and exhalant canal 2;
Hydraulic pressure control channel 3 comprises a valve port 31, and intake tunnel 1 is connected through valve port 31 with exhalant canal 2, and hydraulic pressure control channel has the valve seat 4 that has through hole in the middle of for 3 li; Be with on the intermediate throughholes of valve seat 4 one be roughly inverted T-shaped valve rod 5; The lower end of valve rod 5 places valve port 31 places, the fixed cover 32 of the fixing tubulose in the top of hydraulic pressure control channel 3, and lock through screw thread with the top of hydraulic pressure control channel 3 mutually the bottom of described fixed cover 32; The lower surface of fixed cover 32 also is pressed with a sealing gasket 33; Make valve rod 5 and hydraulic pressure control channel 3 outsides form water-stops, fixed cover 32 outer surface of upper are provided with one section external screw thread, and a cylindrical shape nut 6 is spun on the external screw thread of fixed cover 32 outer surface of upper; Cylindrical shape nut 6 inboard tops are provided with air-vent, prevent that cylindrical shape nut 6 inboards from forming vacuum and revolving motionless;
A spring base 51 is fixed on the top of valve rod 5; The top of spring base 51 and valve rod 5 can use screw 52 to lock mutually; A push rod 61 is fixed at cylindrical shape nut 6 inboard tops; Cylindrical shape nut 6 inboard tops can use screw 62 to lock mutually with push rod 61, and compression spring 7 one ends are against on the spring base 51, the other end is enclosed within on the push rod 61, and compression spring 7 just is in the middle of the fixed cover 32.
Fig. 1 further shows; Compression spring 7 is compressed to the shortest length by the push rod on the cylindrical shape nut 6 61; The power that compression spring 7 is applied on the valve rod 5 is maximum, so the pressure of water outlet in the exhalant canal 2 is also maximum, and this moment, the pressure reduction of intake tunnel 1 and exhalant canal 2 was minimum.
Shown in Figure 2, move to top on the cylindrical shape nut 6, compression spring 7 reaches the longest, and the power that compression spring 7 is applied on the valve rod 5 is minimum, so the pressure of water outlet in the exhalant canal 2 is also minimum, and this moment, the pressure reduction of intake tunnel 1 and exhalant canal 2 was maximum.
Below only be preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection domain of this case.
Claims (5)
1. a discharge pressure control valve comprises valve body, and an end of valve body is provided with intake tunnel; The other end of valve body is provided with exhalant canal, it is characterized in that: also be provided with hydraulic pressure control channel on the valve body, hydraulic pressure control channel comprises a valve port; Described intake tunnel and exhalant canal are connected through valve port; The valve seat that has through hole in the middle of one is arranged in the hydraulic pressure control channel, be with on the intermediate throughholes of valve seat one be roughly inverted T-shaped valve rod, the lower end of valve rod places the valve port place; One cylindrical shape nut is connected through screw thread with hydraulic pressure control channel; Apply active force each other through a compression spring between the top that the cylindrical shape nut is inboard and the top of valve rod, the outside water-stop that forms of valve rod and hydraulic pressure control channel, the inboard top of cylindrical shape nut is provided with air-vent.
2. a kind of discharge pressure control valve according to claim 1; It is characterized in that: the fixed cover of the fixing tubulose in the top of described hydraulic pressure control channel; The fixed cover outer surface of upper is provided with one section external screw thread; The cylindrical shape nut is spun on the external screw thread of fixed cover outer surface of upper, and the compression spring is in the middle of the fixed cover.
3. a kind of discharge pressure control valve according to claim 2 is characterized in that: lock through screw thread with the top of hydraulic pressure control channel mutually the bottom of described fixed cover, and the lower surface of fixed cover also is pressed with a sealing gasket.
4. according to each described a kind of discharge pressure control valve of claim 1 to 3; It is characterized in that: a spring base is fixed on the top of described valve rod; The fixing push rod in top that the cylindrical shape nut is inboard, described compression spring one end is against on the spring base, the other end is enclosed within on the push rod.
5. according to each described a kind of discharge pressure control valve of claim 1 to 3, it is characterized in that: said hydraulic pressure control channel with respect to intake tunnel and exhalant canal for being obliquely installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205627872U CN202396250U (en) | 2011-12-29 | 2011-12-29 | Discharge pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205627872U CN202396250U (en) | 2011-12-29 | 2011-12-29 | Discharge pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202396250U true CN202396250U (en) | 2012-08-29 |
Family
ID=46693940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205627872U Expired - Fee Related CN202396250U (en) | 2011-12-29 | 2011-12-29 | Discharge pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202396250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604649A (en) * | 2015-02-27 | 2015-05-13 | 新疆水利水电科学研究院 | Multi-functional low-power-consumption water-saving irrigation device and system |
-
2011
- 2011-12-29 CN CN2011205627872U patent/CN202396250U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604649A (en) * | 2015-02-27 | 2015-05-13 | 新疆水利水电科学研究院 | Multi-functional low-power-consumption water-saving irrigation device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20201229 |