CN108589832A - Pressure limiting valve applied to water supply pipe - Google Patents
Pressure limiting valve applied to water supply pipe Download PDFInfo
- Publication number
- CN108589832A CN108589832A CN201810677971.8A CN201810677971A CN108589832A CN 108589832 A CN108589832 A CN 108589832A CN 201810677971 A CN201810677971 A CN 201810677971A CN 108589832 A CN108589832 A CN 108589832A
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- lateral wall
- sealing
- circulation passage
- wall
- piston
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 238000007789 sealing Methods 0.000 claims abstract description 117
- 238000012856 packing Methods 0.000 claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/02—Public or like main pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of pressure limiting valves applied to water supply pipe, including：Valve body；The inner wall of valve seat equipped with the first lateral wall, the second lateral wall and the first connection chamber, the first connection chamber is equipped with the first sealing, through-hole and the second sealing；Piston equipped with third lateral wall, the 4th lateral wall and the second connection chamber, piston can be moved back and forth along the direction of water inlet end to water outlet；And it is abutted with the first lateral wall and dynamic clamping head and quiet clamping head that third lateral wall abuts；When piston is in first position, the 4th lateral wall and the second both seals coordinate, and the first circulation passage, the second connection chamber, the first connection chamber, through-hole and clearance channel are connected to；When piston is in the second position, the 4th lateral wall and the second sealing and the first sealing seal cooperation, and the 4th lateral wall seals through-hole.The pressure limiting valve applied to water supply pipe of the present invention can play the role of voltage stabilizing pressure limiting, ensure the normal use with water end.
Description
Technical field
The present invention relates to water supply pipe protective device technical fields, and in particular to a kind of pressure limiting applied to water supply pipe
Valve.
Background technology
With the continuous quickening of urbanization process, water supply pipline system also becomes increasingly complicated, to meet skyscraper
The hydraulic pressure of water supply requirement, water supply pipline system also becomes higher and higher, and for low layer water end (W.E.), higher hydraulic pressure can exist
Security risk is susceptible to the problem of pipe breakage is with leakage, influences the normal use of pipeline, meanwhile, carrying out long range confession
In the pipeline of water, it is turned on and off suddenly by water pump, valve and pipeline is vented the factors such as unsmooth is influenced, the water in pipeline
Pressure will appear violent pressure oscillation to form water hammer effect, and pressure can reach 1.5 times~3 times of service pressure,
Strong rivers shock wave is easy tod produce, pipeline judder, pipe joint is caused to disconnect, valve is destroyed and uses drainage facility.
Traditional water supply pipline system usually installs voltage stabilizing pressure limiting device or a whole set of water supply pipe only on large-scale main line
System is fitted without any voltage stabilizing pressure limiting device, for water end, when the hydraulic pressure in pipeline is higher, can not play steady
It presses, the effect of pressure limiting, is unfavorable for the normal use with water end.
Invention content
Based on this, it is necessary to provide a kind of pressure limiting valve applied to water supply pipe, voltage stabilizing pressure limiting, energy can be played the role of
Enough normal uses ensured with water end.
Its technical solution is as follows：
A kind of pressure limiting valve applied to water supply pipe, including：Valve body, the valve body be equipped with it is first-class all
Road, first circulation passage are equipped with water inlet end and water outlet；Valve seat, the valve seat are set in first circulation passage,
And the valve seat is arranged close to the water inlet end, the valve seat includes the second of the first lateral wall and close water inlet end setting
The inner wall sealing of lateral wall, first lateral wall and first circulation passage coordinates, second lateral wall and described the
The clearance channel to be formed and be connected to first circulation passage, the interior company of being equipped with of the valve seat is arranged in the inner wall interval of one circulation passage
Lead to the first connection chamber of first circulation passage, described first is connected to water inlet end described in the inner wall upper edge of chamber to the water outlet
Direction be equipped with the first sealing, through-hole and the second sealing successively, the through-hole is connected to chamber and the gap with described first
Channel is connected to；Piston, the piston are set in first circulation passage, and the piston can be along the water inlet end to institute
The direction for stating water outlet moves back and forth, and the piston be arranged close to the water outlet, the piston include third lateral wall with
4th lateral wall, the third lateral wall are arranged close to the water outlet, the radially facing surface of the third lateral wall and liquid
Product radially contacts with area more than the 4th lateral wall and liquid, and the third lateral wall is interior with first circulation passage
Wall sealing cooperation, the 4th lateral wall are set to the first connection intracavitary, the connection water outlet are additionally provided in the piston
Hold the second connection chamber for being connected to chamber with described first；And dynamic clamping head and quiet clamping head, the dynamic clamping head and quiet clamping head is for making the piston reset；
When the piston is in first position, the 4th lateral wall coordinates with second both seals, and described first-class
Circulation passage, the second connection chamber, the first connection chamber, the through-hole and the clearance channel are connected to；When the piston
When in the second position, the 4th lateral wall seals cooperation, and institute with second sealing and first sealing
It states the 4th lateral wall and seals the through-hole.
Above application is in the pressure limiting valve of water supply pipe, in use, the water inlet end of the first circulation passage is connected to water source, it will
The water outlet of first circulation passage is connected to with water end, and when being opened with water end, piston is in first position, at this point, living
Plug the 4th lateral wall with first be connected on the inner wall of chamber the second both seals cooperation, due to the first lateral wall with it is first-class
The inner wall sealing of circulation passage coordinates, and the water entered in the first circulation passage through water inlet end through through-hole enters the after flowing through clearance channel
One connection intracavitary, by second connection chamber by flow into the water outlet of the first circulation passage, eventually enter into water end, with water end
Water can just be commonly used；When being closed with water end, since the third lateral wall and the inner wall sealing of the first circulation passage of piston are matched
It closes, and the area that radially contacts with of third lateral wall and water radially contacts with area more than the 4th lateral wall and water, according to Pascal
Principle, the power acted on third lateral wall are more than the power acted on the 4th lateral wall, to act force difference value, in turn
The elastic force of dynamic clamping head and quiet clamping head is overcome to act on so that piston is towards water inlet extreme direction movement, until the 4th lateral wall and the first sealing
Portion's sealing cooperation, at this point, piston is in the second position, through-hole is sealed by the 4th lateral wall, and clearance channel is connected to chamber with first
Cut-off to end water inlet end and water outlet, and then forms one surely between the second connection chamber and pipeline with water end
Fixed low pressure closed environment will not even if the hydraulic pressure in pipeline between the water inlet end and water source of the first circulation passage is got higher
On causing impact with the pipeline of water end and influencing, when being opened with water end, which is destroyed, multiple in elasticity
Under the action of the part of position the 4th lateral wall and the first hermetic unit from and reset, the first circulation passage, the second connection chamber, first are connected to
Chamber, through-hole and clearance channel are connected, and water can be just commonly used again with water end.The embodiment of the present invention is applied to water supply pipe
Pressure limiting valve, when being closed with water end, can pressure limiting valve and between water end formed low pressure closed environment, play stabilization
With the effect of the descaling line pressure of water conservation end, the risk that rupture and leakage occur with the pipeline of water end is reduced, is extended
With the service life of the pipeline of water end, it is also possible to prevent with water end pipeline pipeline vibration caused by water hammer effect, pipe
Road joint breaking and the problem of destroyed with drainage facility, ensures the normal use with water end, meanwhile, pressure limiting valve size, the volume
Smaller, lighter in weight is conducive to save material, reduces input, energy conservation and environmental protection.
Technical solution is illustrated further below：
The valve body includes the first valve body and the second valve body in one of the embodiments, and first valve body is set
There are the first connecting pin and the second circulation passage, the piston and the dynamic clamping head and quiet clamping head to be set in second circulation passage,
Second valve body is equipped with second connection end and third circulation passage, and the valve seat is set in the third circulation passage, and
The second connection end is tightly connected with first connecting pin, and the third circulation passage is connected with second circulation passage
It is logical to form first circulation passage.Valve body include the first valve body and the second valve body, it may be convenient to valve seat, piston and
Dynamic clamping head and quiet clamping head is dismounted, and the repair in later stage is also allowed for.
First lateral wall is equipped with the first groove in one of the embodiments, and the is equipped in first groove
One sealing ring, the inner wall of the third circulation passage coordinate with first sealing ring sealing.Utilize first in the first groove
Sealing ring realizes that the sealing of valve seat and the second valve body coordinates.
Be additionally provided on first lateral wall in one of the embodiments, first protrusion, it is described first protrusion with it is described
Second connection end abuts against.It using the abutting of the first protrusion and second connection end, prevents valve seat from falling off from the second valve body, ensures
The stability and leakproofness that coordinate between valve seat and the second valve body.
The through-hole is multiple, circumferential direction of multiple through-holes along second lateral wall in one of the embodiments,
Setting.It prevents from supplying water caused by single through-hole blocks and terminate.
First sealing includes the second groove of the inner wall for being opened in the first connection chamber in one of the embodiments,
And it is set to the second sealing ring in second groove, when the dynamic clamping head and quiet clamping head is in the second state, outside the described 4th
Side wall coordinates with second sealing ring sealing.Using the second sealing ring in the second groove, when the 4th lateral wall move to
When second sealing ring contacts, good through-hole can be sealed.
Second groove includes the 5th side wall in one of the embodiments, and the 5th side wall is far from described second
Sealing is arranged, and the 5th side wall is equipped with the first packing groove.Under the action of frictional force, the second sealing ring is close to the 5th side
Wall is simultaneously deformed, and deformed second sealing ring fills up the first packing groove, to increase the second sealing ring and the 4th outside
The contact area of wall so that sealed between the second sealing ring and the 4th lateral wall even closer.
Second sealing includes the third groove for the inner wall for being opened in the first connection chamber in one of the embodiments,
And it is set to the third sealing ring in the third groove, when the dynamic clamping head and quiet clamping head is in first state and the second state,
4th lateral wall coordinates with third sealing ring sealing.Utilize the third sealing ring in third groove so that piston
The inner wall that 4th lateral wall can be connected to chamber with first realizes good sealing.
The third groove includes the 6th side wall in one of the embodiments, and the 6th side wall is close to described first
Sealing is arranged, and the 6th side wall is equipped with the second packing groove.Under the action of frictional force, third sealing ring is close to the 6th side
Wall is simultaneously deformed, and deformed third sealing ring fills up the second packing groove, to increase third sealing ring and the 4th outside
The contact area of wall so that sealed between third sealing ring and the 4th lateral wall even closer.
The valve seat includes ontology and pedestal in one of the embodiments, and the ontology is equipped with first outside
Wall, second lateral wall and the first connection chamber, the pedestal are tightly connected with second lateral wall.Pedestal and second
The sealed connection of lateral wall, it may be convenient to valve seat be dismounted, subsequent repair is facilitated.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pressure limiting valve applied to water supply pipe of one embodiment；
Fig. 2 is in structural representation when first state for the dynamic clamping head and quiet clamping head of the pressure limiting valve applied to water supply pipe of Fig. 1
Figure；
The dynamic clamping head and quiet clamping head of the pressure limiting valve applied to water supply pipe of Fig. 3 Fig. 1 is in structural schematic diagram when the second state；
Fig. 4 is the structural schematic diagram of one embodiment of the piston of the pressure limiting valve applied to water supply pipe of Fig. 1；
Fig. 5 is the structural schematic diagram of another embodiment of the piston of the pressure limiting valve applied to water supply pipe of Fig. 1.
Reference sign：
10, pressure limiting valve, 100, valve body, 101, water inlet end, 102, water outlet, the 110, first valve body, 111, second
Circulation passage, the 120, second valve body, 121, third circulation passage, the 130, first circulation passage, 140, clearance channel, 200, valve seat,
210, the first lateral wall, the 211, first sealing ring, the 212, first protrusion, 213, third sealing ring, the 220, second lateral wall, 221,
Through-hole, the 222, second sealing ring, 230, pedestal, 300, piston, 310, third lateral wall, the 311, first contact surface, the 320, the 4th
Lateral wall, the 321, second contact surface, the 330, second connection chamber, the 400, dynamic clamping head and quiet clamping head, 3111, third contact surface, the 3112, the 4th
Contact surface.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only solving
The present invention is released, protection scope of the present invention is not limited.
It should be noted that when element is referred to as " being set to ", " being fixedly arranged on " another element, it can be directly another
On a element or there may also be elements placed in the middle.When element is referred to as " being fixedly arranged on " another element, or with another yuan
Part " is fixedly connected ", can be the mode that is detachably fixed between them can also be non-removable fixed form.When a member
Part is considered as " connection ", " sealed connection " another element, it can be directly to another element or may be same
When there are centering elements.Term as used herein " vertical ", " horizontal ", "left", "right", "upper", "lower" and similar
Statement for illustrative purposes only, be not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the constraint present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant Listed Items.
The similar term such as heretofore described " first ", " second ", " third " does not represent specific quantity and sequence, only
It is the differentiation for title.
As shown in Figure 1 to Figure 3, one embodiment of the present of invention discloses a kind of pressure limiting valve 10 applied to water supply pipe,
Including：Valve body 100, valve body 100 are equipped with the first circulation passage 130, and the first circulation passage 130 is equipped with water inlet end 101
With water outlet 102；Valve seat 200, valve seat 200 is set in the first circulation passage 130, and valve seat 200 is set close to water inlet end 101
Set, valve seat 200 includes the first lateral wall 210 and the second lateral wall 220 for being arranged close to water inlet end 101, the first lateral wall 210 with
The inner wall sealing of first circulation passage 130 coordinates, and shape is arranged in the inner wall interval of the second lateral wall 220 and the first circulation passage 130
At the clearance channel 140 being connected to the first circulation passage 130, the first company of the first circulation passage 130 of connection is equipped in valve seat 200
The direction of cavity (not shown), inner wall upper edge water inlet end 101 to the water outlet 102 of the first connection chamber is equipped with the first sealing successively
Portion, through-hole 221 and the second sealing, through-hole 221 is connected to chamber with first and clearance channel 140 is connected to；Piston 300, piston 300
It is set in the first circulation passage 130, piston 300 can be moved back and forth along the direction of water inlet end 101 to water outlet 102, and living
Plug 300 is arranged close to water outlet 102, and piston 300 includes third lateral wall 310 and the 4th lateral wall 320, third lateral wall 310
It is arranged close to water outlet 102, third lateral wall 310 radially contacts with area more than the 4th lateral wall 320 and liquid with liquid
Area, the inner wall sealing cooperation of third lateral wall 310 and the first circulation passage 130 are radially contacted with, the 4th lateral wall 320 is set to
First is connected to intracavitary, and the second connection chamber 330 that connection water outlet 102 is connected to chamber with first is additionally provided in piston 300；And elasticity is multiple
Position part 400, dynamic clamping head and quiet clamping head 400 is for making piston 300 reset；When piston 300 is in first position, the 4th lateral wall 320
Coordinate with the second both seals, and the first circulation passage 130, second connection chamber 330, first is connected to chamber, through-hole 221 and gap
Channel 140 is connected to；When piston 300 is in the second position, the 4th lateral wall 320 and the second sealing and the first sealing are equal
Sealing cooperation, and the 4th lateral wall 320 seals through-hole 221.
The pressure limiting valve 10 applied to water supply pipe of above-described embodiment, in use, by the water inlet end of the first circulation passage 130
101 are connected to water source, and the water outlet 102 of the first circulation passage 130 is connected to with water end, living when being opened with water end
Plug 300 is in first position, at this point, the 4th lateral wall 320 of piston 300 is connected to the second sealing on the inner wall of chamber with first
Sealing cooperation enters first since the inner wall sealing of the first lateral wall 210 and the first circulation passage 130 coordinates through water inlet end 101
Water in circulation passage 130 flows through enters the first connection intracavitary after clearance channel 140 through through-hole 221, passes through the second connection chamber 330
And the water outlet 102 of the first circulation passage 130 is flowed into, it eventually enters into water end, water can be just commonly used with water end；When with water
When end is closed, since the third lateral wall 310 of piston 300 and the inner wall sealing of the first circulation passage 130 coordinate, and outside third
The area that radially contacts with of side wall 310 and water radially contacts with area more than the 4th lateral wall 320 and water, according to pascal's principle,
The power acted on third lateral wall 310 is more than the power acted on the 4th lateral wall 320, to act force difference value, into
And the elastic force of dynamic clamping head and quiet clamping head 400 is overcome to act on so that piston 300 is moved towards 101 direction of water inlet end, until the 4th lateral wall
320 and first both seals coordinate, at this point, piston 300 be in the second position, through-hole 221 by the 4th lateral wall 320 it is close
Envelope, clearance channel 140 are connected to chamber cut-off with first, to end water inlet end 101 and water outlet 102, and then in the second connection
Chamber 330 and between the pipeline of water end formed a stable low pressure closed environment, even if the water inlet of the first circulation passage 130
The hydraulic pressure in pipeline between end 101 and water source is got higher, will not be on causing impact with the pipeline of water end and influencing, when with water
When end is opened, which is destroyed, the 4th lateral wall 320 and first close under the action of dynamic clamping head and quiet clamping head 400
Envelope part from and reset, the first circulation passage 130, second is connected to chamber 330, first and is connected to chamber, through-hole 221 and clearance channel 140
It is connected, water can be just commonly used again with water end.The pressure limiting valve 10 applied to water supply pipe of the embodiment of the present invention, when with water
When end is closed, end of stablizing and restrict water supply can be played in pressure limiting valve 10 and with low pressure closed environment is formed between water end
The effect of the descaling line pressure at end reduces the risk that rupture and leakage occur with the pipeline of water end, extends with water end
The service life of pipeline, be also possible to prevent with water end pipeline pipeline vibration caused by water hammer effect, pipe joint fracture and
The problem of being destroyed with drainage facility ensure with the normal use of water end, meanwhile, 10 size of pressure limiting valve, the small volume, weight compared with
Gently, be conducive to save material, reduce input, energy conservation and environmental protection.
It is said, the dynamic clamping head and quiet clamping head 400 of the embodiment of the present invention can be the bullet being sheathed on piston 300
The elasticity that spring can also be the elastic being set on the 4th lateral wall 320 or be set on the inner wall of the first circulation passage 130
Column, only need to meet piston 300 can reset under the action of dynamic clamping head and quiet clamping head 400.The radial direction of third lateral wall 310 and water
What contact area was more than the 4th lateral wall 320 and water radially contacts with area, as shown in figure 4, in one embodiment, on the outside of third
The area for radially contacting with area and being set as the first contact surface 311 of wall 310 and water, the 4th lateral wall 320 are radially contacted with water
Area is set as the area of the second contact surface 321, i.e. the wall thickness of third lateral wall 310 is more than the wall thickness of the 4th lateral wall 320；Such as
Shown in Fig. 5, in another embodiment, third lateral wall 310 and the area that radially contacts with of water include third contact surface 3111
The area that radially contacts with of the area of area and the 4th contact surface 3112, the 4th lateral wall 320 and water is set as the second contact surface 321
Area, i.e. the cross-sectional area for radially contacting with area and not only including its wall thickness of third lateral wall 310 and water further includes step groove
Step surface and liquid contact area.
As shown in Figures 2 and 3, on the basis of the above embodiments, valve body 100 includes the first valve body 110 and second
Valve body 120, the first valve body 110 are equipped with the first connecting pin (not shown) and the second circulation passage 111, piston 300 and elastic reset
Part 400 is set in the second circulation passage 111, and the second valve body 120 is equipped with second connection end (not shown) and third circulation passage
121, valve seat 200 is set in third circulation passage 121, and second connection end is tightly connected with the first connecting pin, third circulation
Channel 121 is connected to form the first circulation passage 130 with the second circulation passage 111.Valve body 100 includes the first valve body 110
With the second valve body 120, the first valve body 110 is equipped with water outlet 102, and the second valve body 120 is equipped with water inlet end 101, by piston 300
And dynamic clamping head and quiet clamping head 400 is set in the second circulation passage 111 of the first valve body 110, the third lateral wall 310 of piston 300 with
The inner wall sealing of second circulation passage 111 coordinates, and valve seat 200 is set in the third circulation passage 121 of the second valve body 120,
The inner wall sealing of the first lateral wall 210 and third circulation passage 121 of valve seat 200 coordinates, the second lateral wall 220 of valve seat 200
It is arranged with the inner wall relative spacing of third circulation passage 121, so as to easily to valve seat 200, piston 300 and elastic reset
Part 400 is dismounted, and the repair in later stage is also allowed for.The sealed connection of the present embodiment second connection end and the first connecting pin, can be with
The mode being connected through a screw thread is realized, can also be realized in such a way that sealing ring coordinates with groove, only need to be met and can reach
Seal request.
Further, the first lateral wall 210 is equipped with the first groove (not shown), and the first sealing ring is equipped in the first groove
211, the inner wall of third circulation passage 121 and the sealing of the first sealing ring 211 coordinate.Utilize the first sealing ring in the first groove
211, realize that the sealing of valve seat 200 and the second valve body 120 coordinates.
Further, the first protrusion 212, the first protrusion 212 and second connection end phase are additionally provided on the first lateral wall 210
It abuts.Using the abutting of the first protrusion 212 and second connection end, prevents valve seat 200 from falling off from the second valve body 120, ensure that
The stability and leakproofness coordinated between valve seat 200 and the second valve body 120.
As shown in Figures 2 and 3, based on any of the above embodiments, through-hole 221 is multiple, and multiple through-holes 221 are along the
Two lateral walls 220 it is circumferentially disposed.Multiple through-holes 221 are circumferentially disposed along the second lateral wall 220, even if 221 quilt of single through-hole
Blocking also can guarantee that water can normally circulate in the first circulation passage 130.
As shown in Figures 2 and 3, based on any of the above embodiments, the first sealing includes being opened in the first connection
Second groove (not shown) of the inner wall of chamber and the second sealing ring 222 being set in the second groove, at dynamic clamping head and quiet clamping head 400
When the second state, the 4th lateral wall 320 and the sealing of the second sealing ring 222 coordinate.Utilize the second sealing ring in the second groove
222, when the 4th lateral wall 320, which is moved to, to be contacted with the second sealing ring 222, good through-hole 221 can be sealed, made
The first connection intracavitary can not be flowed by the water of through-hole 221 by obtaining, and ensured the water outlet 102 of the first circulation passage 130 and used water last
A stable low pressure closed environment can be formed between end.
Further, the second groove includes the 5th side wall (not shown), and the 5th side wall is arranged far from the second sealing, and the 5th
Side wall is equipped with the first packing groove (not shown).4th lateral wall 320 of piston 300 is moved to be contacted with the second sealing ring 222,
When piston 300 continues to move towards the water inlet end 101 of the first circulation passage 130, under the action of frictional force, the second sealing ring
222 are close to the 5th side wall and are deformed, and deformed second sealing ring 222 fills up the first packing groove, to increase second
The contact area of sealing ring 222 and the 4th lateral wall 320 so that sealed between the second sealing ring 222 and the 4th lateral wall 320
It is even closer.First packing groove of the present embodiment can be the internal wall transitions position for being opened in the second groove and being connected to chamber with first
Groove or guiding surface, need to only meet the deformation of the second sealing ring 222 can fill up the first packing groove, increase the second sealing ring 222
With the contact area of the 4th lateral wall 320.
In one embodiment, the first sealing includes multiple second grooves and multiple be set in the second groove
Two sealing rings 222.Using the comprehensive function of multiple second grooves and the second sealing ring 222, ensure that the 4th lateral wall 320 can be right
Through-hole 221 carries out good sealing.
As shown in Figures 2 and 3, based on any of the above embodiments, the second sealing includes being opened in the first connection
The third groove (not shown) of the inner wall of chamber and the third sealing ring 213 being set in third groove, at dynamic clamping head and quiet clamping head 400
When first state and the second state, the 4th lateral wall 320 coordinates with the sealing of third sealing ring 213.Using in third groove
Third sealing ring 213 so that the inner wall that the 4th lateral wall 320 of piston 300 can be connected to chamber with first realizes good sealing.
Further, third groove includes the 6th side wall (not shown), and the 6th side wall is arranged close to the first sealing, and the 6th
Side wall is equipped with the second packing groove (not shown).When the 4th lateral wall 320 of piston 300 is moved towards 101 direction of water inlet end,
Under the action of frictional force, third sealing ring 213 is close to the 6th side wall and is deformed, and deformed third sealing ring 213 is filled out
Full second packing groove, to increase the contact area of third sealing ring 213 and the 4th lateral wall 320 so that third sealing ring
213 and the 4th seal between lateral wall 320 it is even closer.Second packing groove of the present embodiment can be opened in third groove
The groove or guiding surface at the internal wall transitions position for being connected to chamber with first, need to only meet the deformation of third sealing ring 213 can fill up
Second packing groove increases the contact area of third sealing ring 213 and the 4th lateral wall 320.
In one embodiment, the second sealing includes multiple third grooves and multiple be set in third groove
Three sealing rings 213.Using the comprehensive function of multiple third grooves and third sealing ring 213, ensure that the 4th lateral wall 320 can be right
Through-hole 221 carries out good sealing.
In one embodiment, using the first packing groove and the second packing groove the 4th lateral wall 320 is connected to first
The inner wall of chamber combines even closer, when dynamic clamping head and quiet clamping head 400 is in the second state, can not be flowed by the water of through-hole 221
First connection intracavitary ensures the water outlet 102 of the first circulation passage 130 and stable low with that can form one between water end
Press closed environment.
As shown in Figures 2 and 3, based on any of the above embodiments, valve seat 200 includes ontology (not shown) and pedestal
230, ontology is equipped with the first lateral wall 210, the second lateral wall 220 and first is connected to chamber, pedestal 230 and the second lateral wall 220
It is tightly connected.The sealed connection of pedestal 230 and the second lateral wall 220, it may be convenient to valve seat 200 be dismounted, after convenient
Continuous repair.The mode that the sealed connection of the present embodiment can be connected through a screw thread is realized, the side of interference fit can also be passed through
Formula is realized, only need to meet seal request.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the constraint to patent of invention range therefore be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of pressure limiting valve applied to water supply pipe, which is characterized in that including：
Valve body, the valve body are equipped with the first circulation passage, and first circulation passage is equipped with water inlet end and water outlet；
Valve seat, the valve seat is set in first circulation passage, and the valve seat is arranged close to the water inlet end, the valve
Seat includes the first lateral wall and the second lateral wall close to water inlet end setting, and first lateral wall circulates with described first
The inner wall sealing in channel coordinates, and the inner wall interval of second lateral wall and first circulation passage is arranged to be formed and described the
The clearance channel of one circulation passage connection, interior the first connection chamber for being equipped with connection first circulation passage of the valve seat are described
The direction of water inlet end to the water outlet described in the inner wall upper edge of first connection chamber is equipped with the first sealing, through-hole and second successively
Sealing, the through-hole is connected to chamber with described first and the clearance channel is connected to；
Piston, the piston are set in first circulation passage, and the piston can be along the water inlet end to the water outlet
The direction at end moves back and forth, and the piston is arranged close to the water outlet, and the piston includes outside third lateral wall and the 4th
Side wall, the third lateral wall are arranged close to the water outlet, and the area that radially contacts with of the third lateral wall and liquid is more than
4th lateral wall and liquid radially contact with area, the inner wall sealing of the third lateral wall and first circulation passage
Cooperation, the 4th lateral wall are set to the first connection intracavitary, the connection water outlet and institute are additionally provided in the piston
State the second connection chamber of the first connection chamber；And
Dynamic clamping head and quiet clamping head, the dynamic clamping head and quiet clamping head is for making the piston reset；
When the piston is in first position, the 4th lateral wall and second both seals coordinate, and described the
One circulation passage, the second connection chamber, the first connection chamber, the through-hole and the clearance channel are connected to；
When the piston is in the second position, the 4th lateral wall and second sealing and first sealing are equal
Sealing cooperation, and the 4th lateral wall seals the through-hole.
2. the pressure limiting valve according to claim 1 applied to water supply pipe, which is characterized in that the valve body includes the
One valve body and the second valve body, first valve body are equipped with the first connecting pin and the second circulation passage, the piston and the elasticity
Return unit is set in second circulation passage, and second valve body is equipped with second connection end and third circulation passage, described
Valve seat is set in the third circulation passage, and the second connection end and first connecting pin are tightly connected, and described the
Three circulation passages are connected to form first circulation passage with second circulation passage.
3. the pressure limiting valve according to claim 2 applied to water supply pipe, which is characterized in that set on first lateral wall
There is the first groove, the first sealing ring is equipped in first groove, the inner wall of the third circulation passage is sealed with described first
Circle sealing cooperation.
4. the pressure limiting valve according to claim 3 applied to water supply pipe, which is characterized in that on first lateral wall also
Equipped with the first protrusion, first protrusion is abutted against with the second connection end.
5. the pressure limiting valve according to claim 1 applied to water supply pipe, which is characterized in that the through-hole be it is multiple, it is more
A through-hole is circumferentially disposed along second lateral wall.
6. the pressure limiting valve according to claim 1 applied to water supply pipe, which is characterized in that first sealing includes
The second sealing ring for being opened in the second groove of the inner wall of the first connection chamber and being set in second groove, when the elasticity
When return unit is in the second state, the 4th lateral wall coordinates with second sealing ring sealing.
7. the pressure limiting valve according to claim 6 applied to water supply pipe, which is characterized in that second groove includes the
Five side walls, the 5th side wall are arranged far from second sealing, and the 5th side wall is equipped with the first packing groove.
8. the pressure limiting valve according to claim 1 applied to water supply pipe, which is characterized in that second sealing includes
The third sealing ring for being opened in the third groove of the inner wall of the first connection chamber and being set in the third groove, when the elasticity
When return unit is in first state and the second state, the 4th lateral wall coordinates with third sealing ring sealing.
9. the pressure limiting valve according to claim 8 applied to water supply pipe, which is characterized in that the third groove includes the
Six side walls, the 6th side wall are arranged close to first sealing, and the 6th side wall is equipped with the second packing groove.
10. being applied to the pressure limiting valve of water supply pipe according to claim 1 to 9 any one of them, which is characterized in that the valve seat
Including ontology and pedestal, the ontology is equipped with first lateral wall, second lateral wall and the first connection chamber, institute
Pedestal is stated to be tightly connected with second lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810677971.8A CN108589832A (en) | 2018-06-27 | 2018-06-27 | Pressure limiting valve applied to water supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810677971.8A CN108589832A (en) | 2018-06-27 | 2018-06-27 | Pressure limiting valve applied to water supply pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108589832A true CN108589832A (en) | 2018-09-28 |
Family
ID=63634022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810677971.8A Pending CN108589832A (en) | 2018-06-27 | 2018-06-27 | Pressure limiting valve applied to water supply pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108589832A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442070A (en) * | 2018-12-12 | 2019-03-08 | 珠海爱迪生智能家居股份有限公司 | The pressure limit valve of adjustable pressure |
| CN111981210A (en) * | 2020-08-06 | 2020-11-24 | 安徽国登管业科技有限公司 | Antibacterial PE water supply pipe with water hammer resistance effect |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201706022U (en) * | 2010-04-03 | 2011-01-12 | 珠海市舒丽玛温控卫浴设备有限公司 | Pressure limiting control valve |
| CN205715869U (en) * | 2016-05-03 | 2016-11-23 | 浙江华益精密机械股份有限公司 | A kind of pressure maintaining valve |
| CN208486318U (en) * | 2018-06-27 | 2019-02-12 | 日丰企业（佛山）有限公司 | Pressure limiting valve applied to water supply pipe |
-
2018
- 2018-06-27 CN CN201810677971.8A patent/CN108589832A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201706022U (en) * | 2010-04-03 | 2011-01-12 | 珠海市舒丽玛温控卫浴设备有限公司 | Pressure limiting control valve |
| CN205715869U (en) * | 2016-05-03 | 2016-11-23 | 浙江华益精密机械股份有限公司 | A kind of pressure maintaining valve |
| CN208486318U (en) * | 2018-06-27 | 2019-02-12 | 日丰企业（佛山）有限公司 | Pressure limiting valve applied to water supply pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442070A (en) * | 2018-12-12 | 2019-03-08 | 珠海爱迪生智能家居股份有限公司 | The pressure limit valve of adjustable pressure |
| CN109442070B (en) * | 2018-12-12 | 2023-12-05 | 珠海爱迪生智能家居股份有限公司 | Pressure limiting valve capable of adjusting pressure |
| CN111981210A (en) * | 2020-08-06 | 2020-11-24 | 安徽国登管业科技有限公司 | Antibacterial PE water supply pipe with water hammer resistance effect |
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