CN206918261U - A kind of adjustable pressure-reducing valve - Google Patents
A kind of adjustable pressure-reducing valve Download PDFInfo
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- CN206918261U CN206918261U CN201720800878.2U CN201720800878U CN206918261U CN 206918261 U CN206918261 U CN 206918261U CN 201720800878 U CN201720800878 U CN 201720800878U CN 206918261 U CN206918261 U CN 206918261U
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- piston
- valve
- pressing plate
- valve body
- bonnet
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Abstract
The utility model provides a kind of adjustable pressure-reducing valve, including valve body, the first piston is by recovering spring in groove, and valve rod is installed at the top of first piston, bonnet is installed at the top of the valve body, the upper end of the valve rod is extended in bonnet through valve rod support frame, and flap is provided with valve rod, second piston is fixed with the top of the valve rod, and compression spring is provided with the top of second piston, pressing plate is installed at the top of the compression spring, pressing plate fixed cover is installed at the top of the bonnet, the lower end of the screw rod is arranged on the top of pressing plate through pressing plate fixed cover, and adjusting knob is installed at the top of screw rod.The utility model is used cooperatively by first piston, recovery spring and second piston, it can effectively prevent flap and the valve body of through hole from causing to wear because the stroke of valve rod is excessive, pass through being used cooperatively for the first airtight and watertight padding and the second airtight and watertight padding, so that sealing improves, so as to improve the using effect of pressure-reducing valve.
Description
Technical field
The utility model belongs to valve technology field, and in particular to a kind of adjustable pressure-reducing valve.
Background technology
Pressure-reducing valve is the outlet pressure that inlet pressure is reduced to a certain needs by regulation, and relies on the energy of medium in itself
Amount, outlet pressure is set to keep stable valve automatically.From the viewpoint of hydrodynamics, pressure-reducing valve is that a local resistance can become
The restricting element of change, i.e., by changing orifice size, change the kinetic energy of flow velocity and fluid, cause the different pressure losses, from
And reach the purpose of decompression.Then by control and the regulation of regulating system, the fluctuation and spring force for making downstream pressure balance each other,
Downstream pressure is set to keep constant in certain error range.There are various adjustable pressure-reducing valves in the market, still
All there is the defects of certain in them, when people overexert, exactly cause the serious wear between flap and through hole, time length
, cause sealing poor, so as to largely effect on the using effect of pressure-reducing valve, and in general pressure-reducing valve sealing is poor, holds
The overflow easily at adjusting knob, in order to solve above-mentioned institute's produced problem, the utility model provides a kind of adjustable pressure-reducing valve.
The content of the invention
The purpose of this utility model is to provide a kind of adjustable pressure-reducing valve, asked with solve to propose in above-mentioned background technology
Topic.
To achieve these goals, the utility model is to realize by the following technical solutions：The adjustable decompression of one kind
Valve, including valve body, first piston and screw rod, set among the bottom in the valve body fluted, and through hole are provided with valve body,
The first piston is provided with valve rod by recovering spring in groove at the top of first piston, the top of the valve body
Portion is provided with bonnet, and the upper end in the valve body is provided with valve rod support frame, and the upper end of the valve rod is prolonged through valve rod support frame
Reach in bonnet, and flap is provided with valve rod, second piston is fixed with the top of the valve rod, and set at the top of second piston
Compression spring is equipped with, pressing plate is installed at the top of the compression spring, pressing plate fixed cover is installed at the top of the bonnet, it is described
The lower end of screw rod is arranged on the top of pressing plate through pressing plate fixed cover, and adjusting knob is provided with the top of screw rod.
Preferably, the flap is located at the surface of through hole, and flap is used cooperatively with through hole.
Preferably, the second airtight and watertight padding and first close is respectively arranged with the valve body of the upper and lower ends of the valve rod support frame
Packing material.
Preferably, the valve body is fixedly connected with bonnet by fixing bolt.
Preferably, the second piston and compression spring are integral type structure.
Preferably, the pressing plate fixed cover and bonnet are by threaded engagement connection, and are set between pressing plate fixed cover and bonnet
It is equipped with rubber seal.
Preferably, the screw rod is flexibly connected with pressing plate fixed cover by screw thread.
Preferably, bolt mounting holes are provided with left and right sides of the valve body.
The beneficial effects of the utility model：It is the adjustable structure of relief pressure valve advantages of simple, economical and practical, easy to use, lead to
Cross first piston, recover being used cooperatively for spring and second piston, can effectively prevent flap and the valve body of through hole due to
The stroke of valve rod is excessive and causes to wear, and passes through being used cooperatively for the first airtight and watertight padding and the second airtight and watertight padding so that sealing
Greatly improve, so as to substantially increase the using effect of pressure-reducing valve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1st, valve body, 2, bolt mounting holes, 3, through hole, 4, groove, 5, first piston, 6, recover spring, 7, valve rod,
8th, flap, 9, valve rod support frame, 10, bonnet, 11, fixing bolt, the 12, first airtight and watertight padding, the 13, second airtight and watertight padding, 14,
Two pistons, 15, compression spring, 16, pressing plate, 17, screw rod, 18, adjusting knob, 19, pressing plate fixed cover, 20, rubber seal.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of adjustable pressure-reducing valve, including valve body 1, first
Piston 5 and screw rod 17, fluted 4 being set among the bottom in valve body 1, and through hole 3 being provided with valve body 1, first piston 5 passes through
Recover spring 6 to be arranged in groove 4, and the top of first piston 5 is provided with valve rod 7, the top of valve body 1 is provided with bonnet 10,
Valve body 1 is fixedly connected with bonnet 10 by fixing bolt 11, and the upper end in valve body 1 is provided with valve rod support frame 9, valve rod 7 it is upper
End is extended in bonnet 10 through valve rod support frame 9, and flap 8 is provided with valve rod 7, and flap 8 is located at the surface of through hole 3,
And flap 8 is used cooperatively with through hole 3, the second airtight and watertight padding 13 is respectively arranged with the valve body 1 of the upper and lower ends of valve rod support frame 9
With the first airtight and watertight padding 12, the top of valve rod 7 is fixed with second piston 14, and the top of second piston 14 is provided with compression spring
15, second piston 14 and compression spring 15 are integral type structure, and the top of compression spring 15 is provided with pressing plate 16, the top of bonnet 10
Portion is provided with pressing plate fixed cover 19, and pressing plate fixed cover 19 and bonnet 10 are by threaded engagement connection, and pressing plate fixed cover 19 and valve
Rubber seal 20 is provided between lid 10, the lower end of screw rod 17 is arranged on the top of pressing plate 16, spiral shell through pressing plate fixed cover 19
Bar 17 is flexibly connected with pressing plate fixed cover 19 by screw thread, and the top of screw rod 17 is provided with adjusting knob 18, the left and right of valve body 1
Both sides are provided with bolt mounting holes 2.
Operation principle:In use, by rotating adjusting knob 18, adjusting knob 18 is downward with dynamic pressure plate 16 by screw rod 17
Compression spring 15 is pressed downward by motion, pressing plate 16 so that second piston 14 moves downward with ovable valve stem 7, so that flap 8 covers
On through hole 3, the spacing of flap 8 and through hole 3 is controlled to adjust the size of pressure by the movement of valve rod 7, the first sealing is filled out
The airtight and watertight padding 13 of material 12 and second is used cooperatively, and enables to the object in valve body 1 will not be from the connection of valve rod 7 and valve body 1
Overflow and influence the using effect of pressure-reducing valve in place.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (8)
- A kind of 1. adjustable pressure-reducing valve, it is characterised in that：Including valve body（1）, first piston（5）And screw rod（17）, the valve body （1）Set among interior bottom fluted（4）, and valve body（1）Inside it is provided with through hole（3）, the first piston（5）Pass through recovery Spring（6）Installed in groove（4）It is interior, and first piston（5）Top valve rod is installed（7）, the valve body（1）Top installation There is bonnet（10）, the valve body（1）Interior upper end is provided with valve rod support frame（9）, the valve rod（7）Upper end pass through valve rod branch Support（9）Extend to bonnet（10）It is interior, and valve rod（7）On be provided with flap（8）, the valve rod（7）Top be fixed with second Piston（14）, and second piston（14）Top be provided with compression spring（15）, the compression spring（15）Top be provided with Pressing plate（16）, the bonnet（10）Top pressing plate fixed cover is installed（19）, the screw rod（17）Lower end consolidate through pressing plate Fixed lid（19）Installed in pressing plate（16）Top, and screw rod（17）Top adjusting knob is installed（18）.
- A kind of 2. adjustable pressure-reducing valve according to claim 1, it is characterised in that：The flap（8）Positioned at through hole（3）'s Surface, and flap（8）With through hole（3）It is used cooperatively.
- A kind of 3. adjustable pressure-reducing valve according to claim 1, it is characterised in that：The valve rod support frame（9）Up and down The valve body at both ends（1）Inside it is respectively arranged with the second airtight and watertight padding（13）With the first airtight and watertight padding（12）.
- A kind of 4. adjustable pressure-reducing valve according to claim 1, it is characterised in that：The valve body（1）With bonnet（10）It is logical Cross fixing bolt（11）It is fixedly connected.
- A kind of 5. adjustable pressure-reducing valve according to claim 1, it is characterised in that：The second piston（14）With compressing bullet Spring（15）For integral type structure.
- A kind of 6. adjustable pressure-reducing valve according to claim 1, it is characterised in that：The pressing plate fixed cover（19）With bonnet （10）By threaded engagement connection, and pressing plate fixed cover（19）With bonnet（10）Between be provided with rubber seal（20）.
- A kind of 7. adjustable pressure-reducing valve according to claim 1, it is characterised in that：The screw rod（17）With pressing plate fixed cover （19）It is flexibly connected by screw thread.
- A kind of 8. adjustable pressure-reducing valve according to claim 1, it is characterised in that：The valve body（1）The left and right sides set It is equipped with bolt mounting holes（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720800878.2U CN206918261U (en) | 2017-07-04 | 2017-07-04 | A kind of adjustable pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720800878.2U CN206918261U (en) | 2017-07-04 | 2017-07-04 | A kind of adjustable pressure-reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918261U true CN206918261U (en) | 2018-01-23 |
Family
ID=61334777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720800878.2U Active CN206918261U (en) | 2017-07-04 | 2017-07-04 | A kind of adjustable pressure-reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206918261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486529A (en) * | 2019-08-29 | 2019-11-22 | 刘州豪 | A kind of Chemical Manufacture sewage draining valve |
| CN114673812A (en) * | 2022-03-10 | 2022-06-28 | 上海迹冷制冷设备有限公司 | Condensing pressure regulating valve |
-
2017
- 2017-07-04 CN CN201720800878.2U patent/CN206918261U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486529A (en) * | 2019-08-29 | 2019-11-22 | 刘州豪 | A kind of Chemical Manufacture sewage draining valve |
| CN114673812A (en) * | 2022-03-10 | 2022-06-28 | 上海迹冷制冷设备有限公司 | Condensing pressure regulating valve |
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| GR01 | Patent grant |