CN106402447A - Pressure reducing valve device - Google Patents
Pressure reducing valve device Download PDFInfo
- Publication number
- CN106402447A CN106402447A CN201610957434.XA CN201610957434A CN106402447A CN 106402447 A CN106402447 A CN 106402447A CN 201610957434 A CN201610957434 A CN 201610957434A CN 106402447 A CN106402447 A CN 106402447A
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- Prior art keywords
- main chamber
- diaphragm
- chamber part
- pressure
- pressure control
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract description 3
- 210000004907 gland Anatomy 0.000 abstract 2
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 230000033228 biological regulation Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000035882 stress Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- 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
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
- F16K31/1264—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded with means to allow the side on which the springs are positioned to be altered
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a pressure reducing valve device which comprises a valve body provided with a water inlet pipe and a water outlet pipe. The upper portion of the valve body is connected with an adjusting piece used for adjusting the preset pressure value. The pressure reducing valve device further comprises a pressure control threaded rod, a pressure control threaded plate, a spring, a fixing nut, a pressure control spacer, a gasket, a membrane, an adapting piece, a connecting rod and a gland nut which are arranged in the valve body. A main cavity piece is provided with a water inlet and a water passing hole, wherein water flow flows from the water inlet pipe to the water outlet pipe through the water inlet, and the lower space of the main cavity piece communicates with the space between the main cavity piece and the membrane through the water passing hole. By the adoption of the structural design, the number of moving parts is small, the moving parts are concentrated, friction force between internal structures is small, movement of a valve element part is smooth, and adjustment of water pressure is more sensitive. Moving parts with high friction force of an ordinary pressure reducing valve are replaced with the gland nut and a sealing pad, so that influences, caused by friction force, on the connecting rod are small, movement is smooth, the sensitivity of water pressure adjustment is improved correspondingly, the problem that the number of the moving parts and sealing parts is too large is solved, and thus the sealing performance is good.
Description
Technical field
A kind of the present invention relates to valve technology field, more particularly, it relates to relief valve unit.
Background technology
Pressure-reducing valve is by adjusting flow of media situation, inlet pressure being reduced to the outlet pressure of a certain needs, and rely on
The energy of medium itself makes outlet pressure automatically keep stable valve.
From the viewpoint of hydrodynamics, pressure-reducing valve is the restricting element that a local resistance can change, that is, pass through to change
Orifice size, making flow velocity and the kinetic energy of fluid change, causing the different pressure losses, thus reaching the purpose of decompression.Then according to
By controlling the regulation with regulating system, so that the fluctuation of downstream pressure and spring force is balanced each other, make downstream pressure in certain error
In the range of keep constant.
Pressure-reducing valve common at present, moveable element is more and relatively decentralized, also there is excessive sealed diameter simultaneously so that
Frictional force between its internal structure is larger, leads to the action of valve element part not prompt enough, the regulation of flow of media pressure is inadequate
Sensitive.Meanwhile, the sealing effectiveness of the bushing of one of its internal main chamber part and movable part is not good, by working of plastics draw taper
Impact larger and then lead to valve element action not smooth so that O-ring needs the larger magnitude of interference, again such that medium flow field
The regulation of logical pressure is not sensitive.
In addition, moveable element more and relatively decentralized so that being difficult to excellent sealing between each part, dielectric leakage point is relatively
More.
In sum, the effect of easing stress how efficiently solving pressure-reducing valve is not prompt enough and the problems such as sealing effectiveness is poor,
It is current those skilled in the art's urgent problem.
Content of the invention
In view of this, it is an object of the invention to provide a kind of relief valve unit, the structure design of this relief valve unit can
Not prompt enough and the problems such as sealing effectiveness is poor with the effect of easing stress that efficiently solves pressure-reducing valve.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of relief valve unit, including the valve body being provided with water inlet pipe, outlet pipe, the top of valve body is connected with pre- for adjusting
If the regulating part of pressure value, the main chamber part, the isolation master that are provided with water inlet and water hole that also include that bottom and valve seal connect
The diaphragm of chamber part and valve inner superjacent air space and the adaptor of insertion diaphragm, water inlet is circulated to out by water inlet pipe for current
Water pipe, water hole connects the space between the lower space of main chamber part and main chamber part and diaphragm, and diaphragm top is additionally provided with fixing company
Switch through fitting and compress the fixing nut of pressure control pad, adaptor lower thread is connected with connecting rod, connecting rod lower thread is even
It is connected to clamp nut, clamp nut is provided with sealing gasket, the diameter phase of the bottom opening of the external diameter of clamp nut and main chamber part
Coupling, the upper surface of pressure control pad pushes against spring, and spring upper end pushes against pressure control spiral shell disk, also include respectively with pressure control spiral shell disk and
The threaded pressure control screw rod of regulating part.
Preferably, in above-mentioned relief valve unit, the internal whorl of main chamber part is connected with the external thread piece for connecting rod insertion,
Main chamber part is provided with the first groove, and pushing against between external thread piece and the first groove has the first O-ring.
Preferably, in above-mentioned relief valve unit, regulating part includes the end cap being fixedly connected with the top of valve body and button sets
In end upper part of the cover adjusting knob, adjusting knob and pressure control screw rod are connected by screw.
Preferably, in above-mentioned relief valve unit, all dismountable connection of end cap and adjusting knob and valve body, adjusting knob
Periphery be provided with for increase friction multiple pits.
Preferably, in above-mentioned relief valve unit, between end cap and diaphragm, compression has for avoiding the end cap in rundown process
Damage the packing ring of diaphragm.
Preferably, in above-mentioned relief valve unit, between main chamber part and valve body, it is provided with the second O-ring, the bottom of main chamber part sets
There is the groove for installing the second O-ring.
Preferably, in above-mentioned relief valve unit, the top of clamp nut be provided with for position limiting sealed pad the second groove and
Strengthen the first annular projection of sealing with sealing gasket.
Preferably, in above-mentioned relief valve unit, diaphragm is specially the rubber diaphragm that surface is provided with grid cloth, and adaptor sets
There is the 3rd groove, the bottom of rubber diaphragm is provided with the second annular protrusion with the 3rd groove sealing cooperation.
Preferably, in above-mentioned relief valve unit, connecting rod is specially stainless steel connecting rod, and fixing nut is specially stainless steel
Fixing nut.
The relief valve unit that the present invention provides, including the valve body being provided with water inlet pipe, outlet pipe, the top of valve body is connected with use
In the regulating part adjusting preset pressure value, also include the main chamber being provided with water inlet and water hole that bottom and valve seal connect
Part, the isolation main chamber part and diaphragm of valve inner superjacent air space and the adaptor of insertion diaphragm, water inlet supplies current by intaking
Pipe is circulated to outlet pipe, and water hole connects the space between the lower space of main chamber part and main chamber part and diaphragm, and diaphragm top is also
It is provided with the fixing nut being fixedly connected adaptor and compressing pressure control pad, adaptor lower thread is connected with connecting rod, connecting rod
Lower thread is connected with clamp nut, and clamp nut is provided with sealing gasket, and the bottom of the external diameter of clamp nut and main chamber part is opened
Mouthful diameter match, the upper surface of pressure control pad pushes against spring, and spring upper end pushes against pressure control spiral shell disk, also include respectively with
Pressure control spiral shell disk and the threaded pressure control screw rod of regulating part.
Application the present invention provide relief valve unit when, enter relief valve unit current pass through main chamber part on cross water
Hole, hydraulic pressure acts on diaphragm.When hydraulic pressure is more than pressure-reducing valve preset pressure value, diaphragm will be deformed by hydraulic pressure jack-up, on diaphragm
Fixing adaptor is synchronized with the movement, and the connecting rod threadeded with adaptor is also to be lifted, the sealing gasket of connecting rod bottom with
The bottom opening rising and pushing against main chamber part, water stream channel be cut off, pressure-reducing valve water outlet end pressure no longer be subject to water inlet end
Pressure influence, thus reach the effect of voltage stabilizing.
The preset pressure value of pressure-reducing valve can be adjusted, and controls pressure control screw rod to rotate using regulating part, pressure control spiral shell disk
Highly change, during pressure control spiral shell disk compression spring, spring stress increases, and that is, preset pressure increases.Conversely, on pressure control spiral shell disk
Rise, spring relaxation stress reduces, you can reduce preset pressure.
Using said structure design, moving component is less and relatively concentrates, and the frictional force between internal structure is less, then valve element
Partial action is smooth, and the regulation of current circulating pressure is more sensitive.Clamp nut and sealing gasket substituted for general pressure-reducing valve and rub
The larger moving component of wiping power so that the friction effects being only subject between connecting rod and main chamber part that move up and down of connecting rod,
Connecting rod motion is more smooth, also accordingly improves the sensitivity of pressure medium regulation.
Meanwhile, the relief valve unit that the present invention provides avoids moving component and the excessive problem of seal member so that close
Sealing property is good.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is main structure diagram when relief valve unit provided in an embodiment of the present invention is opened；
Fig. 2 is main structure diagram during relief valve unit closure provided in an embodiment of the present invention；
Fig. 3 is the disassemblying structure schematic diagram of relief valve unit provided in an embodiment of the present invention；
Fig. 4 is the structural representation of main chamber part provided in an embodiment of the present invention；
Fig. 5 is another viewing angle constructions schematic diagram of Fig. 4；
Fig. 6 is the structural representation of clamp nut provided in an embodiment of the present invention；
Fig. 7 is the bottom surface structure schematic diagram of diaphragm provided in an embodiment of the present invention；
Fig. 8 is the structural representation of adaptor provided in an embodiment of the present invention.
In accompanying drawing, mark is as follows：
Valve body 1, water inlet pipe 2, outlet pipe 3, adjusting knob 4, end cap 5, main chamber part 6, water inlet 7, diaphragm 8, adaptor 9,
Fixing nut 10, connecting rod 11, clamp nut 12, spring 13, pressure control screw rod 14, pressure control spiral shell disk 15, external thread piece 16, an O
Type circle 17, packing ring 18, pressure control pad 19, the second O-ring 20, groove 21, sealing gasket 22, first annular raised 23, the first groove
24th, the second annular protrusion 25, the second groove 26, the 3rd groove 27, water hole 28.
Specific embodiment
The embodiment of the invention discloses a kind of relief valve unit, lead to not in time reduce pressure with the on-off action avoiding pressure-reducing valve
Effect on driving birds is not good, improves the ageing of decompression process, improves the sealing of pressure-reducing valve simultaneously.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1-Fig. 5, Fig. 1 is that front view structure when relief valve unit provided in an embodiment of the present invention is opened is illustrated
Figure；Fig. 2 is main structure diagram during relief valve unit closure provided in an embodiment of the present invention；Fig. 3 is the embodiment of the present invention
The disassemblying structure schematic diagram of the relief valve unit providing；Fig. 4 is the structural representation of main chamber part 6 provided in an embodiment of the present invention；
Fig. 5 is the structural representation of clamp nut 12 provided in an embodiment of the present invention.The arrow of in figure is the direction instruction of current.
The embodiment provides a kind of relief valve unit, including the valve body 1 being provided with water inlet pipe 2, outlet pipe 3, valve
The top of body 1 is connected with the regulating part for adjusting preset pressure value, also includes bottom and valve body 1 is tightly connected is provided with into water
Mouthfuls 7 and the diaphragm 8 of main chamber part 6, isolation main chamber part 6 and valve body 1 inner upper space of water hole 28 and turning of insertion diaphragm 8
Fitting 9, water inlet 7 is circulated to outlet pipe 3 for current by water inlet pipe 2, and water hole 28 connects lower space and the main chamber of main chamber part 6
Space between part 6 and diaphragm 8, diaphragm 8 top is additionally provided with the fixing nut being fixedly connected adaptor 9 and compressing pressure control pad 19
10, adaptor 9 lower thread is connected with connecting rod 11, and connecting rod 11 lower thread is connected with clamp nut 12, clamp nut 12
On sealing gasket 22 is installed, the diameter of the bottom opening of the external diameter of clamp nut 12 and main chamber part 6 matches, pressure control pad 19
Upper surface pushes against a spring 13, and spring 13 upper end pushes against pressure control spiral shell disk 15, also include respectively with pressure control spiral shell disk 15 and regulating part
Threaded pressure control screw rod 14.
During the relief valve unit that application above-described embodiment provides, the current entering relief valve unit pass through on main chamber part 6
Water hole 28, hydraulic pressure acts on diaphragm 8.When hydraulic pressure is more than pressure-reducing valve preset pressure value, diaphragm 8 will be become by hydraulic pressure jack-up
Shape, on diaphragm 8, fixing adaptor 9 is synchronized with the movement, and the connecting rod 11 threadeded with adaptor 9 is also to be lifted, connecting rod
The sealing gasket 22 of 11 bottoms rises therewith and pushes against the bottom opening of main chamber part 6, and water stream channel is cut off, pressure-reducing valve water outlet
End pressure is no longer subject to water inlet end pressure influence, thus reaching the effect of voltage stabilizing.
The preset pressure value of pressure-reducing valve can be adjusted, and controls pressure control screw rod 14 to rotate using regulating part, pressure control spiral shell disk
15 height changes, and during pressure control spiral shell disk 15 compression spring 13, spring 13 stress increases, and that is, preset pressure increases.Conversely, control
Pressure spiral shell disk 15 rises, and spring 13 loosens stress and reduces, you can reduce preset pressure.
Using said structure design, moving component is less and relatively concentrates, and the frictional force between internal structure is less, then valve element
Partial action is smooth, and the regulation of current circulating pressure is more sensitive.Clamp nut 12 and sealing gasket 22 substituted for typically reducing pressure
The larger moving component of valve frictional force is so that moving up and down of connecting rod 11 is only subject to rubbing between connecting rod 11 and main chamber part 6
Wiping power affect, connecting rod 11 move more smooth, also accordingly improve pressure medium regulation sensitivity.
Meanwhile, the relief valve unit that above-described embodiment provides avoids moving component and the excessive problem of seal member, makes
Obtain favorable sealing property.
It is noted that can preferably four water holes 28 symmetrical with regard to main chamber part 6, improved water efficiency and film
Piece 8 is subject to the uniformity of water flow pressure.
In order to optimize the using effect of main chamber part 6 in above-described embodiment, the internal whorl of main chamber part 6 is connected with and supplies connecting rod
The external thread piece 16 of 11 insertions, main chamber part 6 is provided with the first groove 24, and pushing against between external thread piece 16 and the first groove 24 has first
O-ring 17.First O-ring 17 can effectively improve the sealing effectiveness between connecting rod 11 and main chamber part 6, external thread piece 16 simultaneously
First O-ring 17 can be pressed at the first groove 24 of main chamber part 6, it is to avoid the first O-ring 17 is deviate from, external thread piece 16 is also
The function of the motion process guiding for connecting rod 11 can be played, assist more stable the moving along preset path of connecting rod 11.
In order to optimize the using effect of regulating part in above-described embodiment, regulating part includes being fixedly connected with the top of valve body 1
End cap 5 and the adjusting knob 4 located at end cap 5 top for the button, adjusting knob 4 and pressure control screw rod 14 are connected by screw.Rotate
Adjusting knob 4 drives pressure control screw rod 14 to rotate, and changes the height of pressure control spiral shell disk 15, and then the tightness of change spring 13, real
Show the regulation to pressure-reducing valve preset pressure value.It is split-type structural by preferred regulating part, it is more square with the connection of valve body 1
Just, adjust process more flexible.
In order to optimize the using effect of regulating part in above-described embodiment, end cap 5 and adjusting knob 4 and valve body 1 further
All dismountable connection, the periphery of adjusting knob 4 is provided with the multiple pits for increasing friction.By preferred end cap 5 and tune
Section knob 4 and all dismountable connection of valve body 1, the dismounting of regulating part and regulation operation are all more flexible, and arbitrary portion damages
Can very easily overhaul or change.The periphery of preferably adjusting knob 4 is provided with multiple pits simultaneously, increases adjusting knob
Frictional force between 4 and the hand of user, facilitates the operation of user's rotation of adjustment knob 4, is difficult to send out in rotary course
Green hand slides phenomenon.
In order to optimize the using effect of diaphragm 8 in above-described embodiment, between end cap 5 and diaphragm 8, compression has for avoiding twisting
End cap 5 during tight damages the packing ring 18 of diaphragm 8, and packing ring 18 is located at the lower section of pressure control pad 19.Packing ring 18 and pressure control pad
19 are placed on above diaphragm 8, can protect diaphragm 8 when end cap 5 is tightened with valve body 1, prevent diaphragm 8 from being hurt by end cap 5, and plus
Big malleation area, improves the sensitivity of diaphragm 8 induction pressure.
In order to optimize the using effect of main chamber part 6 in above-described embodiment further, between main chamber part 6 and valve body 1, it is provided with
Two O-ring 20, the bottom of main chamber part 6 is provided with the groove 21 for installing the second O-ring 20.Second O-ring 20 can effectively carry
Sealing effectiveness between the bottom of high main chamber part 6 and valve body 1.
In order to optimize the using effect of clamp nut 12 in above-described embodiment, the top of clamp nut 12 is provided with for spacing
Second groove 26 of sealing gasket 22 and with sealing gasket 22 reinforcement sealing first annular raised 23.Sealing gasket 22 can cut off in time
The circulation of current is so that the water flow pressure of outlet pipe 3 is no longer affected by the water flow pressure of water inlet pipe 2.Second groove 26 and first
Annular protrusion 23 all can optimize installation and the sealing effectiveness of sealing gasket 22.
In order to optimize the using effect of diaphragm 8 in previous embodiment further, diaphragm 8 is specially surface and is provided with grid cloth
Rubber diaphragm, adaptor 9 is provided with the 3rd groove 27, and the bottom of rubber diaphragm is provided with the 3rd groove 27 sealing cooperation second
Annular protrusion 25.More preferably, and the grid cloth preferably set up increased the intensity of rubber diaphragm to the toughness of rubber diaphragm, allows rubber membrane
Piece can bear bigger pressure, and keeps high flexibility.The cooperation of the second annular protrusion 25 and the 3rd groove 27 can optimize rubber
Sealing effectiveness between glue film and adaptor 9.
In order to optimize the using effect of connecting rod 11 and fixing nut 10 in above-described embodiment, connecting rod 11 is specially stainless
Steel connecting rod, fixing nut 10 is specially stainless steel fixing nut.Preferably employ stainless steel connecting rod and stainless steel fixing nut,
Make that the corresponding annexation of this device is more stable, simultaneously corrosion-resistant, service life is longer.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Also, it should be noted in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant meaning
Covering comprising of nonexcludability, so that including a series of process of key elements, method, article or equipment not only include that
A little key elements, but also include other key elements being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element being limited by sentence "including a ...", does not arrange
Remove and also there is other identical element in the process including described key element, method, article or equipment.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (9)
1. a kind of relief valve unit, including the valve body (1) being provided with water inlet pipe (2), outlet pipe (3), the top of described valve body (1) is even
It is connected to for the regulating part that adjusts preset pressure value it is characterised in that also including bottom and described valve body (1) is tightly connected sets
There are main chamber part (6), isolation main chamber part (6) and described valve body (1) the inner upper space of water inlet (7) and water hole (28)
Diaphragm (8) and diaphragm (8) described in insertion adaptor (9), described water inlet (7) supply current by described water inlet pipe (2) flow
Pass to described outlet pipe (3), described water hole (28) connect the lower space of main chamber part (6) and main chamber part (6) with
Space between described diaphragm (8), described diaphragm (8) top is additionally provided with and is fixedly connected described adaptor (9) and compresses pressure control pad
The fixing nut (10) of piece (19), adaptor (9) lower thread is connected with connecting rod (11), and connecting rod (11) lower thread connects
There is clamp nut (12), described clamp nut (12) is provided be engaged with the bottom opening of main chamber part (6) close
Packing (22), the diameter of the external diameter of described clamp nut (12) and the bottom opening of main chamber part (6) matches, described pressure control
The upper surface of pad (19) pushes against spring (13), and described spring (13) upper end pushes against pressure control spiral shell disk (15), also includes respectively
The pressure control screw rod (14) threadeded with described pressure control spiral shell disk (15) and described regulating part.
2. relief valve unit according to claim 1 is it is characterised in that the internal whorl of main chamber part (6) is connected with
For the external thread piece (16) of described connecting rod (11) insertion, main chamber part (6) is provided with the first groove (24), described external thread piece
(16) pushing against and described first groove (24) between has the first O-ring (17).
3. relief valve unit according to claim 2 is it is characterised in that described regulating part includes and described valve body (1)
End cap (5) that top the is fixedly connected and button adjusting knob (4) located at described end cap (5) top, described adjusting knob (4) and
Described pressure control screw rod (14) is connected by screw.
4. relief valve unit according to claim 3 it is characterised in that described end cap (5) and described adjusting knob (4) with
And all dismountable connection of described valve body (1), the periphery of described adjusting knob (4) is provided with for increasing the multiple recessed of friction
Hole.
5. relief valve unit according to claim 4 is it is characterised in that press between described end cap (5) and described diaphragm (8)
Tightly have for avoiding the described end cap (5) in rundown process to damage the packing ring (18) of described diaphragm (8).
6. the relief valve unit according to any one of claim 1 to 5 is it is characterised in that main chamber part (6) and described valve
It is provided with the second O-ring (20), the bottom of main chamber part (6) is provided with for installing described second O-ring (20) between body (1)
Groove (21).
7. relief valve unit according to claim 6 it is characterised in that the top of described clamp nut (12) be provided with for
Second groove (26) of spacing described sealing gasket (22) and the first annular projection (23) strengthening sealing with described sealing gasket (22).
8. relief valve unit according to claim 7 is provided with net it is characterised in that described diaphragm (8) is specially surface
The rubber diaphragm of lattice cloth, described adaptor (9) is provided with the 3rd groove (27), and the bottom of described rubber diaphragm is provided with and the described 3rd
Second annular protrusion 25 of groove (27) sealing cooperation).
9. relief valve unit according to claim 8 is it is characterised in that described connecting rod (11) is specially stainless steel connection
Bar, described fixing nut (10) is specially stainless steel fixing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957434.XA CN106402447A (en) | 2016-11-03 | 2016-11-03 | Pressure reducing valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957434.XA CN106402447A (en) | 2016-11-03 | 2016-11-03 | Pressure reducing valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402447A true CN106402447A (en) | 2017-02-15 |
Family
ID=58013831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610957434.XA Pending CN106402447A (en) | 2016-11-03 | 2016-11-03 | Pressure reducing valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402447A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058533A (en) * | 2018-10-18 | 2018-12-21 | 塔罗斯控股有限公司 | A kind of pressure reducing valve |
| CN113018964A (en) * | 2021-03-03 | 2021-06-25 | 杨天文 | Cutting fluid filtering device and system thereof |
| CN114562597A (en) * | 2022-02-08 | 2022-05-31 | 浙江伯特利科技股份有限公司 | Spring film type pressure reducing valve for cold and hot water pipe network |
| US12061487B2 (en) | 2022-06-01 | 2024-08-13 | Husqvarna | Pressure reducer |
Citations (9)
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| US12061487B2 (en) | 2022-06-01 | 2024-08-13 | Husqvarna | Pressure reducer |
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Application publication date: 20170215 |