CN202790743U - Direct-flow regulating valve - Google Patents
Direct-flow regulating valve Download PDFInfo
- Publication number
- CN202790743U CN202790743U CN 201220364381 CN201220364381U CN202790743U CN 202790743 U CN202790743 U CN 202790743U CN 201220364381 CN201220364381 CN 201220364381 CN 201220364381 U CN201220364381 U CN 201220364381U CN 202790743 U CN202790743 U CN 202790743U
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- valve
- valve body
- spool
- rod
- direct current
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Abstract
The utility model provides a direct-flow regulating valve, belongs to the technical field of valve manufacture and solves the problems that a valve passage of the existing regulating valve is flexural, fluid experiences high flowing resistance and the like. The direct-flow regulating valve comprises a valve block with an inner cavity. The valve block is provided with a left water inlet and a right water outlet. A spool is disposed in the valve body. The inner end of a valve stem is connected with the spool. An outer end of the valve stem extends out of the valve body to be connected with a hand wheel. The spool is provided with a connecting rod connected with the valve body in a threaded manner, and the connecting rod is disposed along a connecting line of the water inlet and outlet of the valve body. The valve stem is perpendicular to the connecting rod and is provided with a worm. A worm gear meshing with the worm is axially and connectedly fixed in the valve block. The worm gear is fixedly connected with the periphery of the worm gear. The direct-flow regulating valve has the advantages that the fluid flowing through the valve block experiences low resistance, the valve is high in flow capacity and the like.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, relates to a kind of modulating valve, particularly a kind of direct current type modulating valve.
Background technique
In the automatic control of modern plant, modulating valve plays a very important role, by accepting the control signal of regulation unit output, remove to change the process parameters such as rate-of flow, pressure, temperature, liquid level by power operation, reach correct distribution and the control of medium.
Modulating valve generally comprises inner the be valve body of cavity, spool, valve rod and handwheel, spool is positioned at valve body, the inner of valve rod links to each other with spool, the outer end of valve rod is stretched out outside the valve body and is linked to each other with handwheel, one side of valve body is water intake, opposite side is water outlet, the shape of existing valve body generally is T-shaped or inclined, fluid enters the spool of flowing through, valve core case from the water intake of valve body lower portion and goes out from the water outlet on valve body top, perhaps fluid from the water intake on valve body top enter the spool of flowing through, valve core case flows out from the water outlet of valve body lower portion.
But the valve body of this kind structure, when fluid process valve body, because the passage of valve inner is tortuous, fluid enters and impacts first valve interior wall behind the valve body and change direction, flow to spool, valve core case after, again impact valve interior wall and change direction, make fluid in the valve body of flowing through, the resistance that runs into is large, and the fluid circulation has some setbacks, negotiability is poor, and the phenomenons such as meeting generation eddy current, turbulent flow cause damage to the internal surface of valve in the valve body.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, and the direct current type that a kind of resistance coefficient is little, negotiability is strong modulating valve is provided.
The purpose of this utility model can realize by following technical proposal: a kind of direct current type modulating valve, comprise the inner valve body of cavity that is, the left and right sides of valve body is respectively water intake and water outlet, has spool in the described valve body, valve rod is inner to link with spool, the valve rod outer end stretches out valve body and handwheel links, it is characterized in that, have the coupling rod that is connected with valve body screw thread and coupling rod on the described spool along line direction setting between valve inleting water mouth and the water outlet, above-mentioned valve rod and coupling rod are perpendicular, have worm screw on the described valve rod, axially be fixedly connected with the worm gear that is meshed with above-mentioned worm screw in the described valve body, described worm gear and above-mentioned coupling rod circumferentially are connected.
Has coupling rod on the spool of this direct current type modulating valve, coupling rod is connected with valve body screw thread, coupling rod arranges along the water intake of valve body and the line direction between the water outlet, and coupling rod and valve rod are perpendicular, and namely the water intake of valve body and water outlet are to be on the straight line, and fluid is when flowing to valve body, fluid flows along beeline channel, the resistance that is subject to is little, and it is smooth and easy to flow, and negotiability is strong.Has worm screw on the valve rod, axially be fixed with worm gear in the valve body, worm gear is meshed with worm screw, rotatable handle, and handle band ovable valve stem, worm screw are rotated, worm screw drives the worm gear rotation, change sense of rotation, because worm gear and coupling rod circumferentially are connected the rotation of worm gear drives coupling rod, always be with movable valve plug to move axially along valve body, the function that makes spool play unlatching, close and control.
In above-mentioned a kind of direct current type modulating valve, have joining plate in the described valve body, above-mentioned worm-wheel shaft is to connecting firmly on joining plate.Joining plate is connected mutually with valve body, is that worm gear is connected in the carrier on the valve body, and worm-wheel shaft is to connecting firmly on joining plate, and linking with worm screw reaches the purpose that changes the handwheel transmission direction.
In above-mentioned a kind of direct current type modulating valve, have coupling tunnel in the described valve body, have tapped hole on the described coupling tunnel, above-mentioned coupling rod is positioned at coupling tunnel and both are threaded.Have outside thread on the coupling rod, it is threaded and is located in the tapped hole of coupling tunnel in the valve body, and coupling rod is linked to each other with the coupling tunnel screw thread.
In above-mentioned a kind of direct current type modulating valve, described coupling tunnel connects firmly on joining plate.Coupling tunnel is connected on the joining plate, and coupling tunnel is fixed in the valve body, thereby coupling rod and spool are positioned in the valve body.
In above-mentioned a kind of direct current type modulating valve, described coupling tunnel end has laterally the connecting base that protrudes, and a fastening piece is through on connecting base and the joining plate coupling tunnel and joining plate are connected mutually.Be through on connecting base and the joining plate by fastening piece coupling tunnel and joining plate are connected mutually, coupling tunnel is fixed in the valve body, simple in structure.
In above-mentioned a kind of direct current type modulating valve, described coupling rod and spool are the integral type structure.Integral structure structural stability, spool be during by fluid impact, good stability.
In above-mentioned a kind of direct current type modulating valve, described spool sidepiece has seal ring.Seal ring has strengthened the sealability of valve, and when valve was in closed condition, fluid can not be from the slit seepage between valve body and the spool.
In above-mentioned a kind of direct current type modulating valve, described spool end has the guide rod that is shaft-like, has guiding element in the described valve body, and above-mentioned guide rod is through at the guiding element place.The existence of guide rod and guiding element has strengthened the stability of spool, even valve body inner fluid flow is larger, fluid is larger to the impact force of spool, and spool can not rock yet, and noise is little, and the precision of spool control flow is high.
In above-mentioned a kind of direct current type modulating valve, described guiding element is strip and has the pilot hole that is complementary with guide rod thereon, and above-mentioned guide rod is positioned at the pilot hole place.Guide rod and pilot hole are complementary, basic drive fit, and guide rod is arranged in pilot hole, makes spool when mobile, plays the location and makes the more stable effect of spool.
Compared with prior art, a kind of direct current type modulating valve of providing of the utility model has the following advantages:
1, the water intake of this direct current type modulating valve and water outlet are on same straight line, and flow flows along beeline channel when valve body, and the resistance that is subject to is little, and it is smooth and easy to flow, and negotiability is strong.
2, this direct current type modulating valve changes the moving direction of spool by worm gear and worm screw, and is simple in structure.
3, be fixed with guiding element on the valve body of this direct current type modulating valve, have guide rod on the spool, guide rod is arranged in the pilot hole of guiding element, makes the stability of spool better.
Description of drawings
Fig. 1 is the overall structure sectional view of this direct current type modulating valve.
Fig. 2 is the right elevation of this direct current type modulating valve.
Among the figure, 1, valve body; 2, water intake; 3, water outlet; 4, spool; 5, valve rod; 6, handwheel; 7, coupling rod; 8, worm screw; 9, worm gear; 10, joining plate; 11, coupling tunnel; 12, tapped hole; 13, connecting base; 14, fastening piece; 15, seal ring; 16, guide rod; 17, guiding element; 18, pilot hole.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the direct current type modulating valve that the utility model provides comprises valve body 1, spool 4, valve rod 5 and handwheel 6 etc., the inside of valve body 1 is cavity, its left side is water intake 2, the right side is water outlet 3, the outer end of valve rod 5 is stretched out outside the valve body 1 and handwheel 6 links, valve rod 5 is positioned on the end of valve body 1 and has worm screw 8, the left side of worm screw 8 has joining plate 10, joining plate 10 is connected mutually with valve body 1, the left side of joining plate 10 is fixed with coupling tunnel 11, one end of coupling tunnel 11 has tapped hole 12, and the end of the other end has the connecting base 13 that protrudes laterally, has attachment hole on the connecting base 13, the attachment hole that passes on the connecting base 13 by fastening piece 14 is connected coupling tunnel 11 and joining plate 10 mutually, and fastening piece 14 of the present utility model is screw.The opposite side of joining plate 10 axially is fixed with worm gear 9, as shown in Figure 2, worm gear 9 is meshed with worm screw 8, at handwheel 6 band ovable valve stems 5, when worm screw 8 is rotated, worm screw 8 drives worm gears 9 rotations, the circumference of valve rod 5 is rotatablely moved become worm gear 9 rotatablely moving along valve rod 5 axial directions.
Spool 4 is integral structures with coupling rod 7, the outside of coupling rod 7 has screw thread, coupling rod 7 arranges along the line direction between valve body 1 water intake 2 and the water outlet 3, and coupling rod 7 is perpendicular with valve rod 5, coupling rod 7 screw threads are located in the tapped hole 12 of coupling tunnel 11, and the other end of coupling rod 7 and worm gear 9 circumferentially are connected, and this kind structure makes rotatablely moving of handwheel 6 be converted into the left and right sides translational motion of spool 4.
The sidepiece of spool 4 has seal ring 15, and when valve was in closed condition, seal ring 15 prevented that fluid is from the slit seepage between spool 4 and the valve body 1, good seal performance.The end of spool 4 has the guide rod 16 that is shaft-like, has the guiding element 17 that is strip in the valve body 1, has the pilot hole 18 that is complementary with guide rod 16 on the guiding element 17, guide rod 16 is located in the pilot hole 18, guide rod 16 and pilot hole 18 basic drive fits, even the fluid impact power that spool 4 is subject to is larger, spool 4 can not rock yet, good stability, noise is little.
The direct current type modulating valve that the utility model provides makes spool 4 become left and right sides translational motion from of the prior art moving up and down by worm screw 8 and worm gear 9, thereby the water outlet 3 of realizing valve body 1 is located along the same line with water intake 2, reduce the resistance of flow when valve body 1 is interior, improved the negotiability of fluid, made the performance of the adjusting of modulating valve and distribution good, precision is high.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as valve body 1, water intake 2, water outlet 3, spool 4, valve rod 5, handwheel 6, coupling rod 7, worm screw 8, worm gear 9, joining plate 10, coupling tunnel 11, tapped hole 12, connecting base 13, fastening piece 14, seal ring 15, guide rod 16, guiding element 17, pilot hole 18, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (9)
1. direct current type modulating valve, comprise the inner valve body of cavity (1) that is, the left and right sides of valve body (1) is respectively water intake (2) and water outlet (3), has spool (4) in the described valve body (1), valve rod (5) is inner to link with spool (4), valve rod (5) outer end is stretched out valve body (1) and is linked with handwheel (6), it is characterized in that, having the coupling rod (7) and the coupling rod (7) that are threaded with valve body (1) on the described spool (4) arranges along line direction between valve body (1) water intake (2) and the water outlet (3), above-mentioned valve rod (5) is perpendicular with coupling rod (7), has worm screw (8) on the described valve rod (5), axially be fixedly connected with the worm gear (9) that is meshed with above-mentioned worm screw (8) in the described valve body (1), described worm gear (9) circumferentially is connected with above-mentioned coupling rod (7).
2. direct current type modulating valve according to claim 1 is characterized in that, has joining plate (10) in the described valve body (1), and above-mentioned worm gear (9) axially connects firmly on joining plate (10).
3. direct current type modulating valve according to claim 2, it is characterized in that, have coupling tunnel (11) in the described valve body (1), have tapped hole (12) on the described coupling tunnel (11), above-mentioned coupling rod (7) is positioned at coupling tunnel (11) and both are threaded.
4. direct current type modulating valve according to claim 2 is characterized in that, described coupling tunnel (11) connects firmly on joining plate (10).
5. direct current type modulating valve according to claim 3, it is characterized in that, described coupling tunnel (11) end has laterally the connecting base (13) that protrudes, and a fastening piece (14) is through on connecting base (13) and the joining plate (10) coupling tunnel (11) and joining plate (10) are connected mutually.
6. according to claim 1 and 2 or 3 or 4 or 5 described direct current type modulating valve, it is characterized in that described coupling rod (7) is the integral type structure with spool (4).
7. according to claim 1 and 2 or 3 or 4 or 5 described direct current type modulating valve, it is characterized in that described spool (4) sidepiece has seal ring (15).
8. according to claim 1 and 2 or 3 or 4 or 5 described direct current type modulating valve, it is characterized in that, described spool (4) end has the guide rod (16) that is shaft-like, has guiding element (17) in the described valve body (1), and above-mentioned guide rod (16) is through at guiding element (17) and locates.
9. direct current type modulating valve according to claim 8 is characterized in that, described guiding element (17) is strip and has the pilot hole (18) that is complementary with guide rod (16) thereon, and above-mentioned guide rod (16) is positioned at pilot hole (18) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364381 CN202790743U (en) | 2012-07-26 | 2012-07-26 | Direct-flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364381 CN202790743U (en) | 2012-07-26 | 2012-07-26 | Direct-flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790743U true CN202790743U (en) | 2013-03-13 |
Family
ID=47818007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220364381 Expired - Lifetime CN202790743U (en) | 2012-07-26 | 2012-07-26 | Direct-flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777644A (en) * | 2012-07-26 | 2012-11-14 | 卓旦春 | Straight-flow regulating valve |
| CN111033100A (en) * | 2017-06-19 | 2020-04-17 | 日本恒温装置株式会社 | Cold and hot water switching tap |
-
2012
- 2012-07-26 CN CN 201220364381 patent/CN202790743U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777644A (en) * | 2012-07-26 | 2012-11-14 | 卓旦春 | Straight-flow regulating valve |
| CN102777644B (en) * | 2012-07-26 | 2013-12-25 | 卓旦春 | Straight-flow regulating valve |
| CN111033100A (en) * | 2017-06-19 | 2020-04-17 | 日本恒温装置株式会社 | Cold and hot water switching tap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20131225 |
|
| RGAV | Abandon patent right to avoid regrant |