CN110513487A - A kind of pressure reducing valve - Google Patents
A kind of pressure reducing valve Download PDFInfo
- Publication number
- CN110513487A CN110513487A CN201910718110.4A CN201910718110A CN110513487A CN 110513487 A CN110513487 A CN 110513487A CN 201910718110 A CN201910718110 A CN 201910718110A CN 110513487 A CN110513487 A CN 110513487A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve seat
- diaphragm
- pressure reducing
- 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.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000005192 partition Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 18
- 239000011148 porous material Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- F16K1/32—Details
-
- 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention provides a kind of pressure reducing valves, belong to technical field of valve manufacturing.It solves the problems such as existing structure of relief pressure valve is not compact.This pressure reducing valve includes valve body, valve rod and spool, have in valve body on partition and partition with through-hole, body cavity is divided into intake antrum and water chamber by partition, valve body, which is fixed between valve deck and valve body and valve deck, is installed with diaphragm, the lower end of valve rod is pierced by through-hole and is fixedly connected with spool, the upper end of valve rod is fixedly connected with diaphragm, the pressure adjusting structure of regulating valve stem axial compressive force is equipped in valve deck, valve body is equipped with the limbers for being connected to diaphragm lower part and water chamber, tubular valve seat is fixed between valve body and valve rod, valve seat offers the water hole that several radial directions penetrate through and are connected to intake antrum, the filter screen for being cylindrical in shape and being provide with water hole is cased with outside valve seat, both the water inlet end of valve body and water outlet outer wall all have external screw thread, the two inner wall all has internal screw thread.The present invention has many advantages, such as compact-sized, easy to connect.
Description
Technical field
The invention belongs to technical field of valve manufacturing, are related to a kind of pressure reducing valve.
Background technique
Pressure reducing valve is inlet pressure to be reduced to the outlet pressure of a certain needs, and by the energy of medium itself by adjusting
Amount, makes outlet pressure automatically keep stable valve.Such as Chinese patent literature data discloses a kind of filter-type film decompression
Valve [application number: 201110239882.3；Authorization Notice No.: CN102425692A] comprising valve body, decompressor, filtering dress
It sets, water stream channel is provided in valve body, filter device and decompressor are arranged in valve body, and filter device is arranged in decompressor
Between water stream channel water inlet, filter device includes filter screen, and filter screen is cylindricality, is provided on the side wall in the middle part of filter screen scarce
Mouthful, the vertical side of the two of notch is equipped with fixed part, is provided with the first putting hole in valve body, and the first putting hole is communicated with water stream channel,
Filter screen is arranged in the first putting hole, and the side that the first putting hole intersects with water stream channel is provided with compatible with fixed part solid
Determine slot.
Above-mentioned pressure reducing valve is by changing filter screen structure, so that the positioning of filter screen is convenient, but water inlet and water outlet
Mouth all only has internal screw thread, so that connection is not convenient enough, and the setting of filter screen increases valve volume, for filter screen and
The installation of valve rod, then increase filter screen end cap and valve rod end cap on valve body, and installation is also not convenient enough.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, a kind of compact-sized, assembling side is provided
Just and pressure reducing valve easy to connect.
Object of the invention can be realized by the following technical scheme: a kind of pressure reducing valve, including valve body, valve rod and spool,
With having through-hole on partition and partition in the valve body, body cavity is divided into intake antrum and water outlet by the partition
Chamber, the valve body, which is fixed between valve deck and valve body and valve deck, is installed with diaphragm, and the lower end of the valve rod is pierced by through-hole simultaneously
It is fixedly connected with spool, upper end and the diaphragm of valve rod are fixedly connected with, and the pressure regulation knot of regulating valve stem axial compressive force is equipped in the valve deck
Structure, the valve body are equipped with the limbers for being connected to diaphragm lower part and water chamber, which is characterized in that the valve body and valve rod
Between be fixed with tubular valve seat, the valve seat offers the water hole that several radial directions penetrate through and are connected to intake antrum,
The filter screen for being cylindrical in shape and being provide with water hole is cased with outside the valve seat, outside both the water inlet end of the valve body and water outlet
Wall all has external screw thread, the two inner wall all has internal screw thread.
In a kind of above-mentioned pressure reducing valve, the water inlet end of the valve body and/or water outlet are connected with six by external screw thread
Angle cap is equipped with adapter tube in the hexagonal nuts, the cap edge that hexagonal nuts had radially-inwardly turn down, and cap is along contacting at adapter tube tool
The outside for the flange that some radially outward turns down, the flange inside are equipped with cricoid gasket.
In a kind of above-mentioned pressure reducing valve, there is the valve body upper end of shoulder block and limbers to be located on shoulder block, described
Valve seat there is the flanging for radially outward turning down and being located on shoulder block, the flanging have multiple circumferential directions it is uniformly distributed and axially through
Intercommunicating pore, the bottom of the flanging has the annular groove for being connected to intercommunicating pore and limbers upper end.
In a kind of above-mentioned pressure reducing valve, the valve seat has the guide cylinder for being in cone cylinder shape and coaxially wearing for valve rod.
In a kind of above-mentioned pressure reducing valve, the lower end of the valve seat is pierced by through-hole setting and the lower end of valve seat has outer cone
Face is equipped with sealing ring one between the valve seat and through-hole wall, the lower end of the filter screen is fixed in valve seat and through-hole
Between wall.
In a kind of above-mentioned pressure reducing valve, the upper end that the valve rod stretches out guide cylinder has the protrusion of radially protruding,
The valve seat has the mounting groove for accommodating protrusion, and the protrusion is embedded with the sealing ring for being sealed in installation groove groove wall
Two, the valve body is equipped with sealing ring three between the inner wall and valve seat on the downside of shoulder block.
In a kind of above-mentioned pressure reducing valve, the edge of the diaphragm has flange collar that is downwardly projecting and being in round, described
Valve seat top braces have baffle ring annular in shape, the flange collar contacts at the top surface of baffle ring, and the inner ring of the baffle ring has
The rib flipped up.
In a kind of above-mentioned pressure reducing valve, the pressure adjusting structure includes spring, top board, lower platen and screw rod, described
Lower platen be located on diaphragm, bolt passes through lower platen, diaphragm and is fixedly connected with valve rod, and the bottom end of the spring contradicts
There is the flanging flipped up on the lower platen and edge of lower platen, the top of spring contacts at top board, the upper pressure
Plate middle concave part is at groove, and the screw rod passes through at the top of valve deck and the lower end of screw rod contacts in groove, the valve deck
Top bottom surface be embedded with the nut one connecting with screw flight, screw rod is also threaded with the nut positioned at top surface at the top of valve deck
Two.Flanging plays the role of stopping moving outside spring bottom end, so that spring works are stablized, by rotating screw rod, screw rod axial displacement
To increase or decrease the pressure applied to spring, thus amount of force of the adjustment spring to diaphragm.
Compared with prior art, filter screen is integrated on the outside of valve rod by this pressure reducing valve, reasonable in design, occupies intake antrum
Space is small, compact-sized, and easy to assembly, and water inlet end and water outlet are easy to connect, and diaphragm lower part is anti-by water outlet cavity pressure
Feedback is timely, good operating stability.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of this pressure reducing valve.
Fig. 2 is the structure sectional view of this pressure reducing valve.
Fig. 3 is the schematic enlarged-scale view in Fig. 2 at circle A.
In figure, 1, valve body；2, valve rod；3, spool；4, partition；5, intake antrum；6, water chamber；7, valve deck；8, diaphragm；81,
Flange collar；9, limbers；10, valve seat；101, flanging；102, intercommunicating pore；103, annular groove；104, guide cylinder；11, water hole；
12, filter screen；13, external screw thread；14, internal screw thread；15, hexagonal nuts；151, cap edge；16, it takes over；161, flange；17, gasket；18,
Shoulder block；19, sealing ring one；20, protrusion；21, sealing ring two；22, sealing ring three；23, baffle ring；231, rib；24, spring；
25, top board；26, lower platen；261, flanging；27, screw rod；28, bolt；29, nut one；30, nut two.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, Figure 2 and Figure 3, this pressure reducing valve includes valve body 1, valve rod 2 and spool 3, have in valve body 1 partition 4 and
There is through-hole, 1 inner cavity of valve body is divided into intake antrum 5 and water chamber 6 by partition 4, and valve body 1 is fixed with valve deck 7 and valve body on partition 4
Diaphragm 8 is installed between 1 and valve deck 7, the lower end of valve rod 2 is pierced by through-hole and is fixedly connected with spool 3, the upper end of valve rod 2 and diaphragm 8
It is fixedly connected with, the pressure adjusting structure of 2 axial compressive force of regulating valve stem is equipped in valve deck 7, valve body 1, which is equipped with, to be connected to 8 lower part of diaphragm and go out
The limbers 9 of water cavity 6 is fixed with tubular valve seat 10 between valve body 1 and valve rod 2, valve seat 10 is opened up to be penetrated through there are four radial
And be connected to the water hole 11 of intake antrum 5, water hole 11 is circumferential to be distributed on valve seat 10, be cased with outside valve seat 10 be cylindrical in shape and incited somebody to action
The filter screen 12 that water hole 11 is provide with, both the water inlet end of valve body 1 and water outlet outer wall all have external screw thread 13, the two inner wall has
There is internal screw thread 14.
Valve seat 10 plays position-limiting action to filter screen 12 in this pressure reducing valve, and filter screen 12 is integrated in 2 outside of valve rod, and structure is set
Rationally, occupancy 5 space of intake antrum is small for meter, so that it is compact-sized, and when assembling, spool 3, valve rod 2, valve seat 10, filter screen 12
The top that can connect from valve body 1 for valve deck 7 is packed into valve body 1, easy to assembly, and no setting is required the multiple apertures of valve body 1 simultaneously match stifled
Head simplifies structure, and improves packaging efficiency, and in addition the water inlet end of valve body 1 and water outlet supply have internal screw thread 14 or outer spiral shell
The pipeline of line 13 connects, easy to connect.
The water inlet end of valve body 1 and/or water outlet pass through external screw thread 13 and are connected with hexagonal nuts 15, are equipped with and connect in hexagonal nuts 15
Pipe 16, the cap radially-inwardly turned down that hexagonal nuts 15 has contact at the flange radially outward turned down that adapter tube 16 has along 151
161 outside is equipped with cricoid gasket 17 on the inside of flange 161.Adapter tube 16 can be metal internal thread adapter tube or PPR adapter tube, use
Person formulates according to demand, improves the convenience of connection, and water outlet is connected with hexagonal nuts 15 in the present embodiment, and adapter tube 16 is metal
Internal screw thread adapter tube.
Further to describe in detail, pressure adjusting structure includes spring 24, top board 25, lower platen 26 and screw rod 27 in the present embodiment, under
Pressing plate 26 is located on diaphragm 8, and a bolt 28 passes through lower platen 26, diaphragm 8 and is fixedly connected with valve rod 2, and the bottom end of spring 24 is supported
Touching has the flanging 261 flipped up on the lower platen 26 and edge of lower platen 26, and the top of spring 24 contacts at top board
25,25 middle concave part of top board is at groove, and screw rod 27 passes through 7 top of valve deck and the lower end of screw rod 27 and contacts in groove, valve
The top bottom surface of lid 7 is embedded with the nut 1 being threadedly coupled with screw rod 27, and screw rod 27 is also threaded with positioned at 7 top of valve deck
The nut 2 30 of top surface.
There is valve body 1 upper end of shoulder block 18 and limbers 9 to be located on shoulder block 18, and valve seat 10 has radially outward fold and position
In the flanging 101 on shoulder block 18, flanging 101 have multiple circumferential directions it is uniformly distributed and axially through intercommunicating pore 102, the bottom of flanging 101
Portion has the annular groove 103 for being connected to 9 upper end of intercommunicating pore 102 and limbers.10 axial limiting of valve seat is firm in this way, and annular is recessed
The setting of slot 103, intercommunicating pore 102 is so that limbers 9 is connected to 8 lower part of diaphragm, and 8 lower part of diaphragm is by 6 pressure feedback of water chamber
In time；Valve seat 10 has the guide cylinder 104 for being in cone cylinder shape and coaxially wearing for valve rod 2, and guide cylinder 104 plays guiding role, makes
It is steady to obtain 2 axial displacement of valve rod, and guide cylinder 104 avoids water impact valve rod 2 and valve rod 2 is caused to shake, and avoids valve rod 2
Smooth water outlet is influenced to 7 side axial displacement of valve deck by water impact.
The lower end of valve seat 10 is pierced by through-hole setting and the lower end of valve seat 10 has male cone (strobilus masculinus), between valve seat 10 and through-hole wall
Equipped with sealing ring 1, the lower end of filter screen 12 is fixed between valve seat 10 and through-hole wall.Through-hole wall has step, valve seat
The 10 compression steps with radially protruding, so that sealing ring 1 is located at step and compresses between step, to realize sealing ring
One 19 positioning, sealing ring 1 ensure that the leakproofness between valve seat 10 and through-hole wall, and the lower end of filter screen 12 is by valve seat
10 are pressed in through-hole wall to realize the fixation of 12 lower end of filter screen, and the lower end that valve seat 10 protrudes through-hole is sealed for spool 3 to mention
High sealing effect.
The upper end that valve rod 2 stretches out guide cylinder 104 has the protrusion 20 of radially protruding, and valve seat 10, which has, accommodates protrusion 20
Mounting groove, protrusion 20 is embedded with the sealing ring 2 21 for being sealed in installation groove groove wall, valve body 1 in the downside of shoulder block 18 inner wall and
Sealing ring 3 22 is equipped between valve seat 10.Mounting groove cooperation protrusion 20 makes 2 axial displacement of valve rod more steady, sealing ring two
21 ensure that the leakproofness between valve rod 2 and valve seat 10, and sealing ring 3 22 ensure that the leakproofness between valve seat 10 and valve body 1,
The water of 8 cavity of resorption of diaphragm is avoided to leak to intake antrum 5 between valve seat 10 and valve body 1, to guarantee job stability.
The edge of diaphragm 8 has flange collar 81 that is downwardly projecting and being in round, and 10 top braces of valve seat have baffle ring annular in shape
23, flange collar 81 contacts at the top surface of baffle ring 23, and the inner ring of baffle ring 23 has the rib 231 flipped up.The edge top of diaphragm 8
It is compressed by valve deck 7 so that flange collar 81 contacts at the top surface of baffle ring 23, rib 231 plays barrier effect, and 8 deformation of diaphragm is avoided to make
Flange collar 81 is detached between valve deck 7 and baffle ring 23, ensure that the stability that diaphragm 8 works, and baffle ring 23 plays flange collar 81
The effect that position is promoted, so that 8 lower part of diaphragm swimmingly leads to having a type chamber between valve seat 10 convenient for water in water chamber 6
Limbers 9, annular groove 103, intercommunicating pore 102 are crossed to enter in the type chamber of 8 lower part of diaphragm, so that 8 lower part of diaphragm is discharged
6 pressure feedback of chamber is timely.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiments are merely illustrative of the spirit of the present invention.Those skilled in the art
It can make various modifications or additions to the described embodiments or be substituted in a similar manner, but can't be inclined
From spirit or beyond the scope defined by the appended claims of the invention.
Claims (8)
- Have 1. a kind of pressure reducing valve, including valve body (1), valve rod (2) and spool (3), in the valve body (1) partition (4) and every There is through-hole, valve body (1) inner cavity is divided into intake antrum (5) and water chamber (6), the valve by the partition (4) on plate (4) Body (1), which is fixed between valve deck (7) and valve body (1) and valve deck (7), is installed with diaphragm (8), and the lower end of the valve rod (2) is pierced by Through-hole is simultaneously fixedly connected with spool (3), and upper end and the diaphragm (8) of valve rod (2) are fixedly connected with, and regulating valve is equipped in the valve deck (7) The pressure adjusting structure of bar (2) axial compressive force, the valve body (1) are equipped with the water flowing for being connected to diaphragm (8) lower part and water chamber (6) Hole (9), which is characterized in that be fixed with tubular valve seat (10), the valve seat between the valve body (1) and valve rod (2) (10) water hole (11) that several radial directions penetrate through and are connected to intake antrum (5) is offered, the valve seat (10) is cased with outside is in Tubular and the filter screen (12) for being provide with water hole (11), both the water inlet end of the valve body (1) and water outlet outer wall have There are external screw thread (13), the two inner wall to all have internal screw thread (14).
- 2. a kind of pressure reducing valve according to claim 1, which is characterized in that the water inlet end of the valve body (1) and/or water outlet End is connected with hexagonal nuts (15) by external screw thread (13), is equipped in the hexagonal nuts (15) adapter tube (16), hexagonal nuts (15) The cap radially-inwardly turned down having contacts at the flange radially outward turned down that adapter tube (16) has along (151) along (151), cap (161) outside, the flange (161) inside are equipped with cricoid gasket (17).
- 3. a kind of pressure reducing valve according to claim 1 or 2, which is characterized in that the valve body (1) have shoulder block (18) and The upper end of limbers (9) is located on shoulder block (18), and the valve seat (10), which has, radially outward to be turned down and be located on shoulder block (18) Flanging (101), the flanging (101) have multiple circumferential directions it is uniformly distributed and axially through intercommunicating pore (102), the flanging (101) bottom has the annular groove (103) for being connected to intercommunicating pore (102) and limbers (9) upper end.
- 4. a kind of pressure reducing valve according to claim 3, which is characterized in that the valve seat (10) has in cone cylinder shape and supplies The guide cylinder (104) that valve rod (2) is coaxially worn.
- 5. a kind of pressure reducing valve according to claim 4, which is characterized in that the lower end of the valve seat (10) is pierced by through-hole and sets It sets and the lower end of valve seat (10) has male cone (strobilus masculinus), sealing ring one (19), institute are equipped between the valve seat (10) and through-hole wall The lower end for the filter screen (12) stated is fixed between valve seat (10) and through-hole wall.
- 6. a kind of pressure reducing valve according to claim 5, which is characterized in that the valve rod (2) stretches out guide cylinder (104) Upper end has the protrusion (20) of radially protruding, and the valve seat (10) has the mounting groove for accommodating protrusion (20), described Protrusion (20) is embedded with the sealing ring two (21) for being sealed in installation groove groove wall, and the valve body (1) is on the downside of shoulder block (18) Sealing ring three (22) is equipped between inner wall and valve seat (10).
- 7. a kind of pressure reducing valve according to claim 6, which is characterized in that the edge of the diaphragm (8) has downwardly convex Out and in the flange collar (81) of round, the valve seat (10) top braces have baffle ring annular in shape (23), the flange collar (81) The top surface of baffle ring (23) is contacted at, the inner ring of the baffle ring (23) has the rib (231) flipped up.
- 8. a kind of pressure reducing valve according to claim 1 or 2, which is characterized in that the pressure adjusting structure include spring (24), Top board (25), lower platen (26) and screw rod (27), the lower platen (26) are located on diaphragm (8), and a bolt (28) is worn It crosses lower platen (26), diaphragm (8) and is fixedly connected with valve rod (2), the bottom end of the spring (24) contacts on lower platen (26) And the edge of lower platen (26) has the flanging (261) flipped up, the top of spring (24) contacts at top board (25), described Top board (25) middle concave part at groove, the screw rod (27) passes through at the top of valve deck (7) and the lower end of screw rod (27) is supported It touches in groove, the top bottom surface of the valve deck (7) is embedded with the nut one (29) being threadedly coupled with screw rod (27), screw rod (27) also it is threaded with the nut two (30) positioned at top surface at the top of valve deck (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718110.4A CN110513487A (en) | 2019-08-05 | 2019-08-05 | A kind of pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718110.4A CN110513487A (en) | 2019-08-05 | 2019-08-05 | A kind of pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110513487A true CN110513487A (en) | 2019-11-29 |
Family
ID=68625108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910718110.4A Pending CN110513487A (en) | 2019-08-05 | 2019-08-05 | A kind of pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513487A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205331536U (en) * | 2016-03-14 | 2016-06-22 | 浙江卡博铜业有限公司 | Discharge structure of relief pressure valve valve rod department |
| CN205781168U (en) * | 2016-06-28 | 2016-12-07 | 玉环威尔达铜业有限公司 | A kind of balanced valve |
| CN205896308U (en) * | 2016-08-15 | 2017-01-18 | 浙江恒捷铜业有限公司 | Pressure reducing valve |
| CN210318520U (en) * | 2019-08-05 | 2020-04-14 | 浙江卡博铜业有限公司 | Pressure reducing valve |
-
2019
- 2019-08-05 CN CN201910718110.4A patent/CN110513487A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205331536U (en) * | 2016-03-14 | 2016-06-22 | 浙江卡博铜业有限公司 | Discharge structure of relief pressure valve valve rod department |
| CN205781168U (en) * | 2016-06-28 | 2016-12-07 | 玉环威尔达铜业有限公司 | A kind of balanced valve |
| CN205896308U (en) * | 2016-08-15 | 2017-01-18 | 浙江恒捷铜业有限公司 | Pressure reducing valve |
| CN210318520U (en) * | 2019-08-05 | 2020-04-14 | 浙江卡博铜业有限公司 | Pressure reducing valve |
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