CN202597826U - Pressure maintaining valve - Google Patents

Pressure maintaining valve Download PDF

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Publication number
CN202597826U
CN202597826U CN 201220226930 CN201220226930U CN202597826U CN 202597826 U CN202597826 U CN 202597826U CN 201220226930 CN201220226930 CN 201220226930 CN 201220226930 U CN201220226930 U CN 201220226930U CN 202597826 U CN202597826 U CN 202597826U
Authority
CN
China
Prior art keywords
valve
valve body
chamber
pressure
spool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220226930
Other languages
Chinese (zh)
Inventor
陆宝宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Hongchang Electrical Appliance Technology Co Ltd
Original Assignee
JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO Ltd filed Critical JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO Ltd
Priority to CN 201220226930 priority Critical patent/CN202597826U/en
Application granted granted Critical
Publication of CN202597826U publication Critical patent/CN202597826U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model belongs to valve types and particularly relates to a pressure maintaining valve which comprises a valve body, a valve cover and a valve core, wherein the valve cover and the valve body are fixed through screws. The Pressure maintaining valve is characterized in that an adjusting nut is arranged on the valve cover and provided with a spring, the other end of the spring is located on a fixing seat which is provided with a fixing joint in an embedded and sleeved mode, and a membrane piece and a position-limiting piece are connected with the fixing joint in sequence. The upper portion of the valve core is screwed in the fixing joint, and the lower portion of the valve core is installed in a valve body middle hole of the valve body, wherein the valve body is divided into a water inlet chamber, a pressure adjusting chamber and a water outlet chamber, T-shaped through holes are arranged inside the valve core, and the through holes arranged on two sides of the valve core are respectively guided to the water inlet chamber and the water outlet chamber, and the other side of the valve core is guided to the pressure adjusting chamber. The pressure maintaining valve is simple in structure, can automatically adjust the pressure of a water supplying system, enables the water pressure to be stable, and at the same time, improves the service life of instruments and apparatus.

Description

Pressure maintaining valve
Technical field
The utility model relates to valve type, specifically is a kind of pressure maintaining valve.
Background technique
Water-supply systems pressure is unstable through regular meeting at present; When intake pressure changes or flow when changing; Hydraulic pressure often has bigger variation; Even can surpass the pressure that back level filter, flowmeter, inlet valve can bear and cause and the damage of above-mentioned instrument influence its normal operation, cause user's unnecessary loss.
Summary of the invention
The purpose of the utility model is the deficiency to existing technology, provides a kind of user can be own to regulate hydraulic pressure and the inside pressure maintaining valve that carries out the pressure adjustment automatically after mixing up hydraulic pressure according to demand.
The technological scheme of the utility model is following:
A kind of pressure maintaining valve comprises valve body, valve gap, spool, and valve gap and valve body are screwed; It is characterized in that: adjusting nut is arranged on the valve gap, and adjusting nut has spring, and the spring the other end is on fixed base; Fixed base is nested with permanent joint, and spool top is successively through banking stop and diaphragm mesopore, through being threaded in permanent joint; Pack in the valve body mesopore of valve body in the spool bottom, and valve body is divided into intake chamber, surge-chamber, water-supplying chamber, and the T-shaped through hole is arranged in the spool; Wherein both sides through-hole guides intake chamber and water-supplying chamber, opposite side guiding surge-chamber.
O type circle is housed between the utility model spool and valve body, spool and cartridge cover, is used for sealing.
The utility model adopts the self balancing principle of pressure, and when intake chamber pressure became big, spool moved under the drive of diaphragm and fixed base, and the increase of the pressure of surge-chamber also promotes to move on the spool, reduces flow of inlet water, to reduce pressure; When inlet pressure diminishes; The resilience under the reaction force of spring of diaphragm and fixed base; The drive spool moves down, and has increased flow of inlet water, and makes the water of surge-chamber reflux out; Further drive spool and move down, so repeatedly to reach the purpose of the water pressure scope of regulating and be stabilized in user's appointment fast.The utility model is simple in structure, can adjust the pressure of water system voluntarily, thereby make stable water pressure, has also prolonged the working life of instrument simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of pressure maintaining valve comprises valve body 10, valve gap 2, spool 8; It is characterized in that: adjusting nut 1 is arranged on the valve gap 2, and adjusting nut 1 has spring 3, and spring 3 the other ends are on fixed base 4; Fixed base 4 is nested with permanent joint 5, and connects a diaphragm 6 and a banking stop 7 successively, and spool 8 tops screw in permanent joint 5; The bottom is contained in the valve body mesopore 17 of valve body 10, and valve body 10 is divided into intake chamber 13, surge-chamber 14, water-supplying chamber 15, and T-shaped through hole 16 is arranged in the spool 8; Wherein both sides through-hole guides intake chamber 13 and water-supplying chamber 15, opposite side guiding surge-chamber 14.
10 of the utility model spool 8 and valve bodies have an O type circle 9, and spool 8 is loaded onto the 2nd O type circle 12 with cartridge cover 11.
The utility model makes 10 surge-chamber pressure of spool 8 and valve body change automatically with intake pressure under T-shaped through hole 16 effects of spool 8.When intake pressure during greater than a certain value; Diaphragm 6 meeting pressurizeds also move up, and drive on the spool 8 and move, and the water capacity that branches to surge-chamber 14 simultaneously also increases; The cavity pressure of surge-chamber 14 increases; Also promote to move on the spool 8, the water flowing area of valve body mesopore 17 is reduced, and under spring 3 pressure effects, discharge pressure is stabilized under a certain value; When valve body mesopore 17 water flowing areas reduced to certain value, when the pressure of spring 3, spring 3 promoted fixed bases 4 related diaphragms 6 and descends together with spool 8 under the chamber pressure of surge-chamber 14, and the water flowing area of valve body mesopore 17 increases, and makes the discharge pressure increase; The variation of intake pressure is carried out the circulation of front repeatedly, reaches discharge pressure and is stabilized in a certain scope.
The utility model range hydraulic pressure can be set through turn adjusting nut 1.

Claims (3)

1. a pressure maintaining valve comprises valve body, valve gap, spool, and valve gap and valve body are screwed; It is characterized in that: adjusting nut is arranged on the valve gap, and adjusting nut has spring, and the spring the other end is on fixed base; Fixed base is nested with permanent joint, connects a diaphragm and a banking stop successively, and spool top screws in permanent joint; Pack in the valve body mesopore of valve body in the bottom, and valve body is divided into intake chamber, surge-chamber, water-supplying chamber, and the T-shaped through hole is arranged in the spool; Wherein two side through hole lead respectively intake chamber and water-supplying chamber, opposite side guiding surge-chamber.
2. pressure maintaining valve according to claim 1 is characterized in that: between spool and valve body, between spool and cartridge cover O type circle is housed.
3. pressure maintaining valve according to claim 1 and 2 is characterized in that: range hydraulic pressure can be set through the turn adjusting nut.
CN 201220226930 2012-05-17 2012-05-17 Pressure maintaining valve Expired - Lifetime CN202597826U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220226930 CN202597826U (en) 2012-05-17 2012-05-17 Pressure maintaining valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220226930 CN202597826U (en) 2012-05-17 2012-05-17 Pressure maintaining valve

Publications (1)

Publication Number Publication Date
CN202597826U true CN202597826U (en) 2012-12-12

Family

ID=47315365

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220226930 Expired - Lifetime CN202597826U (en) 2012-05-17 2012-05-17 Pressure maintaining valve

Country Status (1)

Country Link
CN (1) CN202597826U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104534138A (en) * 2014-11-24 2015-04-22 西南石油大学 Ground constant-pressure throttling valve
CN109282063A (en) * 2018-10-31 2019-01-29 余姚市普润净水设备有限公司 Voltage-stabilizing combined solenoid valve
CN110230718A (en) * 2019-05-30 2019-09-13 农业农村部南京农业机械化研究所 Unvarying pressure anti-dripping valve
CN111248795A (en) * 2020-03-15 2020-06-09 西北工业大学 Pressure-stabilizing temperature-equalizing self-suction shower

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104534138A (en) * 2014-11-24 2015-04-22 西南石油大学 Ground constant-pressure throttling valve
CN109282063A (en) * 2018-10-31 2019-01-29 余姚市普润净水设备有限公司 Voltage-stabilizing combined solenoid valve
CN110230718A (en) * 2019-05-30 2019-09-13 农业农村部南京农业机械化研究所 Unvarying pressure anti-dripping valve
CN110230718B (en) * 2019-05-30 2020-05-22 农业农村部南京农业机械化研究所 Constant pressure anti-drip valve
CN111248795A (en) * 2020-03-15 2020-06-09 西北工业大学 Pressure-stabilizing temperature-equalizing self-suction shower

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Pressure maintaining valve

Effective date of registration: 20140925

Granted publication date: 20121212

Pledgee: Agricultural Bank of China Limited by Share Ltd Jinhua Economic Development Zone Branch

Pledgor: JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO., LTD.

Registration number: 2014990000810

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20161206

Granted publication date: 20121212

Pledgee: Agricultural Bank of China Limited by Share Ltd Jinhua Economic Development Zone Branch

Pledgor: JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO., LTD.

Registration number: 2014990000810

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Pressure maintaining valve

Effective date of registration: 20170608

Granted publication date: 20121212

Pledgee: Agricultural Bank of China Limited by Share Ltd Jinhua Economic Development Zone Branch

Pledgor: JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO., LTD.

Registration number: 2017990000422

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20180308

Granted publication date: 20121212

Pledgee: Agricultural Bank of China Limited by Share Ltd Jinhua Economic Development Zone Branch

Pledgor: JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO., LTD.

Registration number: 2017990000422

PC01 Cancellation of the registration of the contract for pledge of patent right
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 321000 No. 788 Xinhong Road, Qiubin Street, Wucheng District, Jinhua City, Zhejiang Province

Patentee after: Zhejiang Hongchang Electrical Appliance Technology Co., Ltd.

Address before: 321017 No. 161 Binhong West Road, Jinhua City, Zhejiang Province

Patentee before: JINHUA HONGCHANG ELECTRICAL EQUIPMENT CO., LTD.

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Pressure maintaining valve

Effective date of registration: 20191220

Granted publication date: 20121212

Pledgee: Agricultural Bank of China Limited by Share Ltd Jinhua Economic Development Zone Branch

Pledgor: Zhejiang Hongchang Electrical Appliance Technology Co., Ltd.

Registration number: Y2019330000354

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20201217

Granted publication date: 20121212

Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Economic Development Zone Branch

Pledgor: JINHUA HONGCHANG ELECTRLCAL EQUIPMENT Co.,Ltd.

Registration number: Y2019330000354

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20121212