CN201443117U - Piston-type flush valve - Google Patents

Piston-type flush valve Download PDF

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Publication number
CN201443117U
CN201443117U CN2009200306115U CN200920030611U CN201443117U CN 201443117 U CN201443117 U CN 201443117U CN 2009200306115 U CN2009200306115 U CN 2009200306115U CN 200920030611 U CN200920030611 U CN 200920030611U CN 201443117 U CN201443117 U CN 201443117U
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China
Prior art keywords
valve
spool
piston
ring
type
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009200306115U
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Chinese (zh)
Inventor
彭东
于兴义
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Individual
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Individual
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Priority to CN2009200306115U priority Critical patent/CN201443117U/en
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Publication of CN201443117U publication Critical patent/CN201443117U/en
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Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a piston-type flush valve; a valve core is sleeved in a valve cavity; the bottom of the valve core seals a water outlet of the valve; a valve core is connected with the valve by thread; the convex flange of the upper part of a valve stem is located in a shaft hole of the valve cover; the valve stem is connected with a button sleeved with a cylindrical spring by thread; the inner wall of the valve cavity is provided with a diversion trough extending into the open end of the valve, and the open end of the valve is provided with a small groove; a diversion pipe below the valve core is inserted into the water outlet, and a conical ring is extended outside the top of the diversion pipe and arranged in the valve core; the valve stem is provided with circular convex ribs with two sets of gaskets at intervals; and the conical ring can move between the two convex ribs along the valve stem. The convex ribs limit the movement of the valve core in the inner cavity of the valve and realize limiting sealing, the valve stem is pressed by the button and leads the valve core to move up under the internal and external pressure difference to open the water outlet; and when the pressure of the pipeline is over, the valve stem automatically moves down to open the valve core to drain water, so as to realize relief protection to the pipeline connected with a piston valve; and the piston-type flush valve has simple structure and small size, can be flexibly arranged outside a pressure water tank and meet different installation requirements.

Description

A kind of piston-type flushometer
Technical field
The utility model relates to the lavatory with the flushing valve in the pressure flushing system, can externally be installed on the outer a kind of piston-type flushometer of pressure water tank especially.
Background technology
The disclosed pressure type flushing system of Chinese patent CN2677468Y structure-improved, its operating principle is to be stamped certain water in the pressure water tank, and be pressurized to the pressure of setting, water tank is built-in with a flushing valve, water can be discharged after opening, tank pressure descends, and drops to certain force value flushing valve and closes; Flushing valve is built-in, and to be installed in the water tank volume requirement to water tank bigger, its mounting means in water tank is very single, the flushing valve of therefore existing built-in installation can't adapt to the needs of present pressure water tank volume miniaturization design and Installation Flexibility thereof, and existing flushing valve does not have the releasing pressure automatically function, in case water tank hydraulic pressure is too high, damage the pipeline of water tank and connection thereof easily.
The utility model content
For solving the problem that the built-in installation of traditional pressure water tank flushing valve is brought, the utility model is intended to propose externally to be installed on outside all kinds of pressure water tanks and a kind of piston-type flushometer of suitable mutually with it.
The technical scheme in the invention for solving the above technical problem is: a kind of piston-type flushometer, spool is inserted in the valve pocket of valve body, the valve rod that is with taper spring inserts in the spool, valve gap is connected with the valve body threaded engagement, convex edge, valve rod top is in the axis hole of valve gap, and the threaded rod of valve rod upper epitaxial is threaded with the button that is with cylindrical spring; It is characterized in that:
Body wall is provided with water inlet, water inlet over against the valve pocket inwall be provided with a guiding gutter and extend to the valve body openings end, the valve core opening end face is provided with sulculus;
The upper and lower part of the spool of corresponding water inlet is provided with rubber cushion, water stop gel ring respectively, and rubber cushion is pressed mutually with valve cavity wall and touched, and water stop gel ring touches with pressing mutually with the contra bevel of the delivery port of valve body; Spool has the mozzle of muscle in addition, and flow-directing shroud inserts in the delivery port of valve body, and mozzle top extension has a frustum ring to be in the spool;
Valve rod is provided with at interval two ring-type convex tendons is set, and the cannelure on the convex tendon is with sealing ring, and the frustum ring in the spool can move between two convex tendons along valve rod.
Interior step anchor ring spacing in the axis hole of the convex edge on valve rod of the present utility model top and valve gap bottom is 0.5mm-1mm, so that move up and down by button rotation fine adjustment valve rod, the elasticity of frustum ring in the sealing ring of the convex tendon on the control valve rod and the spool, guarantee its tightness, guarantee that the body cavity of valve core cavity and valve gap below constitutes a pressure chamber.Spool face between rubber cushion and the water stop gel ring is an anchor ring groove, and the current that advanced in the water inlet can be full of the space between spool and its valve body.Push up mutually with valve gap at the taper spring top, and taper spring bottom is formed annular groove bottom between valve wall and frustum ring, and spool is subjected to the pressure of taper spring that water stop gel ring spool under and the tight pressure of contra bevel of delivery port are touched, and delivery port is sealed.The area of the following radially anchor ring of convex edge is less than the valve rod area of the last oblique anchor ring of the convex tendon of below; make hydraulic pressure in water tank greater than when setting value; spool rises under the effect of differential water pressures; thereby current flow out from valve body and make pipeline pressure descend, and the pipeline that is connected with the utility model is carried out decompression protection.Male-pipe portion on the valve body is with the O RunddichtringO; The valve stem that is arranged in the axis hole of valve gap is provided with an O type rubber ring, guarantees the tightness of valve pocket.Be axially arranged with four flow deflectors at the valve rod lower end edge, flow deflector is arranged in the mozzle of spool bottom, and when the convex tendon of valve rod below separated with spool, the water in the spool flowed out from mozzle along flow deflector, flows to delivery port in the lump with the water inlet of water inlet.What another embodiment of the present utility model adopted is: the valve pocket inwall of valve body is not established guiding gutter, is provided with small through hole on the anchor ring groove of spool and is communicated with valve core cavity being positioned at.
The beneficial effects of the utility model are: by limit spool moving and carry out spacing sealing in body cavity at the convex tendon on the valve rod, valve rod makes spool move under the effect of external and internal pressure difference to open delivery port by button press and carries out draining, and when the pipeline overvoltage, move on spool is automatic, the pipeline that is connected with piston valve is carried out decompression protection; The utility model is simple in structure, volume is little, can be installed on the pressure water tank outside flexibly, satisfies different installation needs.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model;
Fig. 2 is a package assembly three-dimensional exploded view of the present utility model;
State diagram when Fig. 3 is spool retaining of the present utility model;
Fig. 4 is the stereogram of valve body of the present utility model;
Fig. 5 is the A portion enlarged drawing of Fig. 3;
State diagram during Fig. 6 spool draining of the present utility model;
Fig. 7 is the B portion enlarged drawing of Fig. 6;
The spool of Fig. 8 utility model is opened the structural representation of outlet along valve rod rising worker under the pressure differential effect;
Fig. 9 is this novel valve rod decompression protection force analysis figure under the situation of overvoltage;
Figure 10 is the structure sectional view of the embodiment two of utility model;
Figure 11 is the stereogram of spool of the embodiment two of utility model;
Among the figure:
1. button; 2. cylindrical spring;
3. valve gap; 31. axis hole; 32. interior step anchor ring;
4. valve body; 41. male-pipe; 42. valve pocket; 43. water inlet; 44. delivery port; 45. guiding gutter; 46. contra bevel.
5. taper spring;
6. spool; 61. anchor ring groove; 62. rubber cushion; 63. water stop gel ring; 64. mozzle; 65. muscle; 66. frustum ring; 67. sulculus; 68. annular groove;
7. valve rod; 71. convex edge; 72. following radially anchor ring; 73. convex tendon; 74. sealing ring; 75. go up oblique anchor ring; 76. flow deflector; 77. threaded rod; 78.O type rubber ring;
8.O RunddichtringO; 9. small through hole.
The specific embodiment
Below in conjunction with accompanying drawing and each embodiment the utility model is further specified.
Embodiment one:
As Fig. 1~a kind of piston-type flushometer shown in Figure 3, form by button 1, cylindrical spring 2, valve gap 3, valve rod 7, taper spring 5, spool 6, valve body 4 and seal.As shown in Figure 4, valve body 4 sidewalls are provided with water inlet 43, water inlet 43 over against valve pocket 42 inwalls be provided with a guiding gutter 45 and extend to valve body 4 openends, spool 6 open ends are provided with sulculus 67, spool 6 is inserted in the valve pocket 42 of valve body 4, the upper and lower part of the spool 6 of corresponding water inlet 43 is provided with rubber cushion 62, water stop gel ring 63 respectively, spool 6 surfaces between rubber cushion 62 and the water stop gel ring 63 are an anchor ring groove 61, rubber cushion 62 is pressed mutually with valve pocket 42 walls and is touched, and water stop gel ring 63 is pressed mutually with the contra bevel 46 of the delivery port 44 of valve body 4 and touched; Spool 6 has the mozzle 64 of muscle 65 in addition, and mozzle 64 covers insert in the delivery port 44 of valve body 4, and mozzle 64 top extensions have a frustum ring 66 to be in the spool 6.The valve rod 7 that is with taper spring 5 inserts in the spool 6, and push up mutually with valve gap 3 at taper spring 5 tops, and taper spring 5 bottoms are formed annular groove 68 bottoms between valve wall and frustum ring 66; Valve rod 7 is provided with two ring-type convex tendons 73 is set at interval, cannelure on the convex tendon 73 is with sealing ring 74, frustum ring 66 in the spool 6 can move 73 of two convex tendons along valve rod 7, is axially arranged with four flow deflectors 76 at valve rod 7 lower end edges, and flow deflector 76 is arranged in the mozzle 64 of spool 6 bottoms.41 ones of male-pipes on the valve body 4 are with O RunddichtringO 8, valve gap 3 is connected with valve body 4 threaded engagement, convex edge, valve rod 7 top 71 is in the axis hole 31 of valve gap 3,7 ones of valve rods in the axis hole 31 of valve gap 3 are provided with an O type rubber ring 78, as shown in Figure 5, interior step anchor ring 32 space D in the convex edge 71 on valve rod 7 tops and the axis hole 31 of valve gap 3 bottoms are 0.5mm, the area of the following radially anchor ring 72 of convex edge 71 is less than valve rod 7 area of the last oblique anchor ring 75 of the convex tendon 73 of below, and the threaded rod 77 of valve rod 7 upper epitaxial is threaded with the button 1 that is with cylindrical spring 2; So far finish assembling of the present utility model.
As shown in Figure 3, the water energy pipeline of pressure water tank enters the water inlet 43 of valve body 4 sides, pressure flow riddles between the anchor ring groove 61 of valve body 4 inwalls and spool 6, inject valve gap 3 and the formed space of spool 6 inner chambers through the guiding gutter on valve pocket 42 inwalls 45 again, frustum ring 66 in spool 6 inner chambers is pressed mutually with the ring-type convex tendon 73 of the band sealing ring 74 of valve rod 7 belows and is touched at this moment, till valve pocket 42 fills with water of whole valve body 4.As Fig. 6~shown in Figure 7, applying light button 1, cylindrical spring 2 compressions, button 1 drives connected valve rod 7 and moves down, make the ring-type convex tendon 73 of valve rod 7 belows separate with frustum ring 66 in the spool 6, the water of spool 6 inner chambers flows out along the flow deflector on the valve rod 7 76 through mozzle 64, the water that flows out flows out from the delivery port 44 of valve body 4 bottoms, then this moment, spool 6 was opened draining and pressure release, make the spool 6 inside and outside pressure differentials (spool 6 inner chambers form negative pressure) that form, as shown in Figure 8, float along valve rod 7 at this action of pressure bottom spool 6, compression taper spring 5 rises to another ring-type convex tendon 73 and spacing by it up to spool 6, and spool 6 rises, cause the water stop gel ring 63 on the spool 6 to be separated with valve pocket 42 interior delivery port 44 place's contra bevels 46, open delivery port 44, make water inlet 43 and delivery port 44 communicated drainage, the water in the pressure water tank is discharged fast through the utility model.
The utlity model has the decompression protection function; as shown in Figure 9; if water tank hydraulic pressure is by force P; F1 is the downforce of 6 pairs of valve rods 7 of spool; F2 is the upward pressures of spool 6 inner chamber hydraulic pressure to valve rod 7, and F3 is the upward pressure of 2 pairs of valve rods 7 of cylindrical spring, and F4 is the downforce of spool 6 inner chamber hydraulic pressure to valve rod 7; A2 is the active force area of F2, and A4 is the active force area of F4.F3=F1 during the anhydrous pressure condition of valve body 4; F1+F4=F2+F3 when hydraulic pressure is arranged; F1=F2+F3-F4=F2+P * (A2-A4) then; because the area A 2 of the following radially anchor ring 72 of convex edge 71 is less than valve rod 7 area A 4 of the last oblique anchor ring 75 of the convex tendon 73 of below; be A2<A4; so when the pressure water tank overvoltage (pressure that surpasses design); F1≤0; then mean the seal failure of 7 of spool 6 and valve rods; spool 6 inner chamber current are discharged and pressure release; when pressure drops to certain numerical value; spool 6 rises under the effect of differential water pressures, opens the delivery port 44 of valve body 4, and press water is discharged from the delivery port 44 of valve body 4; water flows out valve body 4 to be made and pressure water tank of the present utility model and pipeline pressure decline, plays the effect of protection pressure water tank and pipeline.
Embodiment two:
A kind of piston-type flushometer as shown in figure 10, valve pocket 42 inwalls of its valve body 4 are not established guiding gutter 45, as shown in figure 11, be provided with a small through hole 9 on the anchor ring groove 61 of spool 6 and be communicated with spool 6 inner chambers being positioned at, other structure, operating principle and embodiment are with embodiment one.

Claims (8)

1. piston-type flushometer, spool is inserted in the valve pocket of valve body, and the valve rod that is with taper spring inserts in the spool, and valve gap is connected with the valve body threaded engagement, convex edge, valve rod top is in the axis hole of valve gap, and the threaded rod of valve rod upper epitaxial is threaded with the button that is with cylindrical spring; It is characterized in that:
Body wall is provided with water inlet, water inlet over against the valve pocket inwall be provided with a guiding gutter and extend to the valve body openings end, the valve core opening end face is provided with sulculus;
The upper and lower part of the spool of corresponding water inlet is provided with rubber cushion, water stop gel ring respectively, and rubber cushion is pressed mutually with valve cavity wall and touched, and water stop gel ring is pressed mutually with the contra bevel of the delivery port of valve body and touched; Spool has the mozzle of muscle in addition, and flow-directing shroud inserts in the delivery port of valve body, and mozzle top extension has a frustum ring to be in the spool;
Valve rod is provided with at interval two ring-type convex tendons is set, and the cannelure on the convex tendon is with sealing ring, and the frustum ring in the spool can move between two convex tendons along valve rod.
2. a kind of piston-type flushometer as claimed in claim 1 is characterized in that: the interior step anchor ring space D in the axis hole of the convex edge on valve rod top and valve gap bottom is 0.5mm-1mm.
3. a kind of piston-type flushometer as claimed in claim 1 is characterized in that: the spool face between rubber cushion and the water stop gel ring is an anchor ring groove.
4. a kind of piston-type flushometer as claimed in claim 1 is characterized in that: push up mutually with valve gap at the taper spring top, and the taper spring bottom is formed annular groove bottom between valve wall and frustum ring.
5. a kind of piston-type flushometer as claimed in claim 1 is characterized in that: the area of the following radially anchor ring of convex edge is less than the valve rod area of the last oblique anchor ring of the convex tendon of below.
6. a kind of piston-type flushometer as claimed in claim 1 is characterized in that: the male-pipe portion on the valve body is with 0 RunddichtringO; The valve stem that is arranged in the axis hole of valve gap is provided with an O type rubber ring.
7. as claim 1,2,5 or 6 described a kind of piston-type flushometers, it is characterized in that: be axially arranged with four flow deflectors at the valve rod lower end edge, flow deflector is arranged in the mozzle of spool bottom.
8. as claim 1 or 3 described a kind of piston-type flushometers, it is characterized in that: the valve pocket inwall of valve body is not established guiding gutter, is provided with small through hole on the anchor ring groove of spool and is communicated with valve core cavity being positioned at.
CN2009200306115U 2009-07-23 2009-07-23 Piston-type flush valve Expired - Lifetime CN201443117U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200306115U CN201443117U (en) 2009-07-23 2009-07-23 Piston-type flush valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200306115U CN201443117U (en) 2009-07-23 2009-07-23 Piston-type flush valve

Publications (1)

Publication Number Publication Date
CN201443117U true CN201443117U (en) 2010-04-28

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ID=42547792

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200306115U Expired - Lifetime CN201443117U (en) 2009-07-23 2009-07-23 Piston-type flush valve

Country Status (1)

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CN (1) CN201443117U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013143431A1 (en) * 2012-03-30 2013-10-03 Li Feiyu Flushing mechanism
CN107165238A (en) * 2016-03-08 2017-09-15 慈溪三和智能卫浴有限公司 A kind of warm-water toilet seat water tank Manual water drain valve and warm-water toilet seat device
CN107214010A (en) * 2017-07-14 2017-09-29 宁波汇力电器有限公司 A kind of band closes the discharging device of rifle stopping function
CN107620814A (en) * 2017-09-26 2018-01-23 江烨 Switch valve with temperature adjustment
CN108104225A (en) * 2018-02-06 2018-06-01 胡建廷 A kind of fluid power opens tonifying Qi toilet flusher certainly
CN108915052A (en) * 2018-06-19 2018-11-30 厦门建霖健康家居股份有限公司 A kind of water-saving hydraulically-controlled type flushing valve structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013143431A1 (en) * 2012-03-30 2013-10-03 Li Feiyu Flushing mechanism
CN107165238A (en) * 2016-03-08 2017-09-15 慈溪三和智能卫浴有限公司 A kind of warm-water toilet seat water tank Manual water drain valve and warm-water toilet seat device
CN107214010A (en) * 2017-07-14 2017-09-29 宁波汇力电器有限公司 A kind of band closes the discharging device of rifle stopping function
CN107620814A (en) * 2017-09-26 2018-01-23 江烨 Switch valve with temperature adjustment
CN108104225A (en) * 2018-02-06 2018-06-01 胡建廷 A kind of fluid power opens tonifying Qi toilet flusher certainly
CN108915052A (en) * 2018-06-19 2018-11-30 厦门建霖健康家居股份有限公司 A kind of water-saving hydraulically-controlled type flushing valve structure
CN108915052B (en) * 2018-06-19 2022-06-21 厦门建霖健康家居股份有限公司 Water-saving hydraulic control type flushing valve structure

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Hai Yi (Xiamen) building materials industry Co., Ltd.

Assignor: Yu Xingyi|Peng Dong

Contract record no.: 2010350000155

Denomination of utility model: Piston-type flush valve

Granted publication date: 20100428

License type: Exclusive License

Record date: 20100713

CX01 Expiry of patent term

Granted publication date: 20100428

CX01 Expiry of patent term