CN208295221U - Civilian pressure reducing valve - Google Patents
Civilian pressure reducing valve Download PDFInfo
- Publication number
- CN208295221U CN208295221U CN201820749231.6U CN201820749231U CN208295221U CN 208295221 U CN208295221 U CN 208295221U CN 201820749231 U CN201820749231 U CN 201820749231U CN 208295221 U CN208295221 U CN 208295221U
- Authority
- CN
- China
- Prior art keywords
- anticreep
- sealing
- pressure reducing
- reducing valve
- sealing ring
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of civilian pressure reducing valve, belongs to valve technology field.It solves the problems, such as that existing pressure reducing valve has poor sealing effect when closed.This civilian pressure reducing valve, including internal valve body, the flap set on the intracorporal valve rod of valve and set on valve rod lower end with cavity, there is water inlet end and water outlet on valve body, the sealing being oppositely arranged with flap is equipped in cavity, the middle part of sealing has the runner of connection water inlet end and water outlet, there is the sealing ring around the annular protrusion of runner setting and positioned at annular protrusion outer ring on sealing, the height of sealing ring is higher than the height of annular protrusion, and the disconnecting prevention structure for preventing sealing ring from falling off is additionally provided between sealing and sealing ring.The utility model has many advantages, such as that sealing effect is good, structural stability is good.
Description
Technical field
The utility model belongs to valve technology field, is related to a kind of civilian pressure reducing valve.
Background technique
From hydromechanical angle analysis, pressure reducing valve is the restricting element that a local resistance can change, i.e., by changing
Traitorous flow area changes flow velocity and fluid dynamic energy, to cause the different pressure losses, achievees the purpose that decompression with this.
Finally, by the adjusting of control and regulating system, so that the fluctuation of downstream pressure and spring dynamic balance, make downstream pressure certain
Error range in keep constant.
Existing pressure reducing valve, including valve body, valve rod, valve deck and strainer are provided with the influent stream road for media flow in valve body
Runner out, the lower end of valve rod are provided with flap, and valve rod upper end is provided with diaphragm, diaphragm and valve rod, valve body can be formed one it is close
The chamber closed, lower surface in influent stream road and the out upper surface in runner, which are provided with, to be cooperated with flap to control the gear of rate-of flow
Block, strainer are wrapped on the outer circumference surface of valve rod, and the diameter of flap is greater than the aperture that block is formed, and valve body lower portion, which is provided with, to be used for
The pilot hole of valve rod positioning, the upper surface in runner is disposed radially the runner of transmitting pressure out, and medium can pass through the stream
Road flows into chamber, and valve body lower portion is provided with the bonnet for flap positioning, and valve body lower portion is offered determines for bonnet positioning
Position hole.When existing pressure reducing valve is closed, due to its unreasonable structural design, there are problems that poor sealing effect.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of people that sealing effect is good
Use pressure reducing valve.
The purpose of this utility model can be realized by the following technical scheme:
Civilian pressure reducing valve, including internal valve body, the valve set on the intracorporal valve rod of valve and set on valve rod lower end with cavity
Valve has water inlet end and water outlet on the valve body, and the sealing being oppositely arranged with flap is equipped in the cavity, described
The middle part of sealing has the runner of connection water inlet end and water outlet, which is characterized in that has on the sealing around stream
The annular protrusion that road is arranged and the sealing ring positioned at annular protrusion outer ring, the height of the sealing ring are higher than the height of annular protrusion
Degree, is additionally provided with the disconnecting prevention structure for preventing sealing ring from falling off between the sealing and sealing ring.
In above-mentioned civilian pressure reducing valve, the sealing has positioning plane, the ring towards one end of flap
Shape protrusion is set in positioning plane, and the disconnecting prevention structure includes the anticreep column with head end of several fixations on the positioning plane
With the anticreep hole being correspondingly arranged with anticreep column being set on sealing ring, the aperture in the anticreep hole is gradually increased from outside to inside, institute
The outer diameter for stating anticreep column cap end is greater than the minimum-value aperture in anticreep hole.
In above-mentioned civilian pressure reducing valve, several anticreep columns are uniformly distributed along the central axes of annular protrusion, described
The quantity in anticreep hole is the integral multiple of anticreep column quantity, and several anticreep holes are uniformly distributed along the central axes of annular protrusion.
In above-mentioned civilian pressure reducing valve, the anticreep column is 3-6.
In above-mentioned civilian pressure reducing valve, the anticreep column is 3.The integral multiple that the quantity in anticreep hole is 3, can be
3,6,9 ... is a, and anticreep column can be made quickly to navigate in anticreep hole, convenient for the Fast Installation of sealing ring.
In above-mentioned civilian pressure reducing valve, there is the guide cone being coaxially disposed with anticreep column on the head end of the anticreep column
The minimum outer diameter in face, the guiding conical surface is less than the minimum diameter in anticreep hole.When installation, anticreep hole is directed at anticreep column, pressing
Sealing ring make be oriented to the conical surface progress into anticreep hole, sealing ring be pressurized generate flexible deformation, when anticreep column head end completely into
After entering into anticreep hole, sealing ring resets, and the head end of anticreep column is completely encapsulated in anticreep hole, can prevent the de- of sealing ring
It falls.
Have the annular being coaxially disposed with annular protrusion recessed in above-mentioned civilian pressure reducing valve, in the positioning plane
Slot, several anticreep columns are uniformly set to the bottom of annular groove, and the sealing ring is set in the annular groove.
In above-mentioned civilian pressure reducing valve, the outer rim of the annular protrusion is arc-shaped.
Compared with prior art, this civilian pressure reducing valve has the advantage that
When closing pressure reducing valve, the gasket on flap is resisted against on annular protrusion and sealing ring simultaneously, is formed dual close
Envelope blocks runner, and sealing effect is good；Sealing ring is fixed by disconnecting prevention structure simultaneously, good anti-drop effect, structural stability is high.
Detailed description of the invention
Fig. 1 is the partial structure diagram of preferred embodiment provided by the utility model.
Fig. 2 is that the utility model provides in Fig. 1 enlarged diagram at A.
Fig. 3 is the structural schematic diagram of anticreep column provided by the utility model.
In figure, 1, valve body；2, flap；3, water inlet end；4, water outlet；5, sealing；6, runner；7, annular protrusion；8, close
Seal；9, plane is positioned；10, head end；11, anticreep column；12, anticreep hole；13, it is oriented to the conical surface；14, annular groove.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Civilian pressure reducing valve as shown in Figure 1 including the internal valve body 1 with cavity, the valve rod in valve body 1 and is set to
The flap 2 of valve rod lower end has water inlet end 3 and water outlet 4 on valve body 1, is equipped with the sealing being oppositely arranged with flap 2 in cavity
5, the middle part of sealing 5 has the runner 6 of connection water inlet end 3 and water outlet 4.There is the ring being arranged around runner 6 on sealing 5
Shape protrusion 7 and sealing ring 8 positioned at 7 outer ring of annular protrusion, the height of sealing ring 8 are higher than the height of annular protrusion 7, sealing 5
The disconnecting prevention structure for preventing sealing ring 8 from falling off is additionally provided between sealing ring 8.
As shown in Fig. 2, having positioning plane 9 towards one end of flap 2 in sealing 5, annular protrusion 7 is set to positioning plane
On 9, disconnecting prevention structure includes several anticreep columns 11 with head end 10 being fixed in positioning plane 9 and on sealing ring 8
The anticreep hole 12 being correspondingly arranged with anticreep column 11, the aperture in anticreep hole 12 are gradually increased from outside to inside, 11 head end 10 of anticreep column
Outer diameter is greater than the minimum-value aperture in anticreep hole 12.
Several anticreep columns 11 are uniformly distributed along the central axes of annular protrusion 7, and the quantity in anticreep hole 12 is 11 quantity of anticreep column
Integral multiple, several anticreep holes 12 are uniformly distributed along the central axes of annular protrusion 7.According to actual use situation, anticreep column is set
11 be 3-6.
In the present embodiment, anticreep column 11 is 3, and the quantity in anticreep hole 12 is 6, anticreep column 11 can be made quickly to navigate to anti-
In de- hole 12, convenient for the Fast Installation of sealing ring 8.
As shown in figure 3, having the guiding conical surface 13 being coaxially disposed with anticreep column 11, guide cone on the head end 10 of anticreep column 11
The minimum outer diameter in face 13 is less than the minimum diameter in anticreep hole 12.When installation, anticreep hole 12 is directed at anticreep column 11, by pressure seal ring
8 progress into the guiding conical surface 13 in anticreep hole 12, and sealing ring 8, which is pressurized, generates flexible deformation, when the head end 10 of anticreep column 11 is complete
After being entered in anticreep hole 12 entirely, sealing ring 8 resets, and the head end 10 of anticreep column 11 is completely encapsulated in anticreep hole 12, can be prevented
Only sealing ring 8 falls off.
As shown in Fig. 2, there are the annular groove 14 being coaxially disposed with annular protrusion 7, several anticreep columns 11 in positioning plane 9
It is uniformly set to the bottom of annular groove 14, sealing ring 8 is set in the annular groove 14.When closing pressure reducing valve, on flap 2
Gasket is resisted against on annular protrusion 7 and sealing ring 8 simultaneously, is formed dual-seal and is blocked runner 6, sealing effect is good.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
1. a kind of civilian pressure reducing valve including the internal valve body (1) with cavity, the valve rod being set in valve body (1) and is set to valve rod
The flap (2) of lower end has water inlet end (3) and water outlet (4) on the valve body (1), is equipped in the cavity and flap
(2) sealing (5) being oppositely arranged, the middle part of the sealing (5) have the runner of connection water inlet end (3) and water outlet (4)
(6), which is characterized in that have on the sealing (5) around the annular protrusion (7) of runner (6) setting and positioned at convex annular
The sealing ring (8) of (7) outer ring is played, the height of the sealing ring (8) is higher than the height of annular protrusion (7), the sealing (5)
The disconnecting prevention structure for preventing sealing ring (8) from falling off is additionally provided between sealing ring (8).
2. civilian pressure reducing valve according to claim 1, which is characterized in that the sealing (5) is towards the one of flap (2)
End has positioning plane (9), and the annular protrusion (7) is set in positioning plane (9), if the disconnecting prevention structure includes solid
The anticreep column (11) with head end (10) that is scheduled in positioning plane (9) and right with anticreep column (11) on sealing ring (8)
The aperture in the anticreep hole (12) that should be arranged, the anticreep hole (12) is gradually increased from outside to inside, anticreep column (11) head end
(10) outer diameter is greater than the minimum-value aperture of anticreep hole (12).
3. civilian pressure reducing valve according to claim 2, which is characterized in that several anticreep columns (11) are along annular protrusion
(7) central axes are uniformly distributed, and the quantity of the anticreep hole (12) is the integral multiple of anticreep column (11) quantity, and several described prevents
De- hole (12) are uniformly distributed along the central axes of annular protrusion (7).
4. civilian pressure reducing valve according to claim 3, which is characterized in that the anticreep column (11) is 3-6.
5. civilian pressure reducing valve according to claim 4, which is characterized in that the anticreep column (11) is 3.
6. civilian pressure reducing valve according to claim 2, which is characterized in that have on the head end (10) of the anticreep column (11)
It is less than anticreep hole (12) with the minimum outer diameter of the guiding conical surface (13) of anticreep column (11) coaxial arrangement, the guiding conical surface (13)
Minimum diameter.
7. civilian pressure reducing valve according to claim 2, which is characterized in that have and annular in the positioning plane (9)
The annular groove (14) of raised (7) coaxial arrangement, several anticreep columns (11) are uniformly set to the bottom of annular groove (14),
The sealing ring (8) is set in the annular groove (14).
8. civilian pressure reducing valve according to claim 1, which is characterized in that the outer rim of the annular protrusion (7) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749231.6U CN208295221U (en) | 2018-05-18 | 2018-05-18 | Civilian pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749231.6U CN208295221U (en) | 2018-05-18 | 2018-05-18 | Civilian pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208295221U true CN208295221U (en) | 2018-12-28 |
Family
ID=64728306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820749231.6U Expired - Fee Related CN208295221U (en) | 2018-05-18 | 2018-05-18 | Civilian pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208295221U (en) |
-
2018
- 2018-05-18 CN CN201820749231.6U patent/CN208295221U/en not_active Expired - Fee Related
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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: 20181228 Termination date: 20210518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |