CN201302011Y

CN201302011Y - Pressure regulating valve

Info

Publication number: CN201302011Y
Application number: CNU200820199217XU
Authority: CN
Inventors: 王洪仁; 彭宗元; 上猛军
Original assignee: ZHEJIANG DANAU MACHINERY CO Ltd
Current assignee: ZHEJIANG DANAU INDUSTRIES CO., LTD.
Priority date: 2008-11-17
Filing date: 2008-11-17
Publication date: 2009-09-02
Anticipated expiration: 2018-11-17

Abstract

The utility model discloses a pressure regulating valve, comprising a valve body. The pressure regulating valve further comprises a valve lever and a check lever, wherein a pressure regulating spring is arranged on the valve lever,and a check spring is arranged on the check lever; the valve body is internally provided with a water inlet chamber, a return chamber and a water outlet chamber, wherein the water inlet chamber is provided with at least one water inlet, the flow return chamber is provided with at least one flow return port, the water outlet chamber is provided with a water outlet, and the water inlet chamber is respectively communicated with the flow return chamber and the water outlet chamber; a valve seat is arranged between the water inlet chamber and the flow return chamber, the water inlet chamber is communicated with the flow return chamber through the valve seat, the water inlet chamber is internally provided with a water return spring; a steel ball used for closing the communication of the water inlet chamber with the return chamber is arranged between the water return spring and the valve seat; one end of the valve lever extends into the flow return chamber and is installed on the valve seat; the valve lever is matched with the steel ball; the other end of the valve lever is connected with the pressure regulating handle; and the check lever is arranged in the water outlet chamber. The utility model has reliable working and convenient use.

Description

A kind of pressure regulator valve

Technical field

The utility model belongs to the technical field of atmospheric control parts, more particularly, relates to a kind of pressure regulator valve.

Background technique

At present, traditional pressure regulator valve has generally comprised valve body, be provided with suction port and air outlet on valve body, spool is housed in the valve body, the valve rod in spool and the valve body is connected, form sealing pair by corresponding four sides in spool and the valve body, reach the purpose of pressure regulation, but, cause the interior corresponding concave surface of spool and valve body through deforming easily behind the multiple impact or damaging owing to adopt said structure, it is bad that sealing will become, and influences the proper functioning of pressure regulator valve.How to solve the normal working performance of pressure regulator valve, become problem demanding prompt solution.

The model utility content

The technical problems to be solved in the utility model provides a kind of reliable operation, pressure regulator valve easy to use.

In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme:

A kind of pressure regulator valve comprises valve body, it is characterized in that: also comprise valve rod, check lever, be provided with pressure adjusting spring on valve rod, be provided with check spring on check lever; Be provided with intake chamber, refluxing chamber and water-supplying chamber in valve body, described intake chamber has at least one water intake, and refluxing chamber has at least one backflow mouth of a river, and water-supplying chamber has water outlet; Described intake chamber is communicated with refluxing chamber, water-supplying chamber respectively; Between intake chamber and refluxing chamber, be provided with valve seat, intake chamber is communicated with refluxing chamber by valve seat, in intake chamber, be provided with the backwater spring, between backwater spring and valve seat, be provided with the steel ball that is used to seal intake chamber, refluxing chamber connection, one end of valve rod stretches in the refluxing chamber and is contained on the valve seat, valve rod matches with steel ball, and the valve rod the other end is connected with adjusting pressuring handle; Check lever is located in the water-supplying chamber.

The utility model also comprises the adjusting pressuring handle lid, and this adjusting pressuring handle lid is connected with adjusting pressuring handle.

On valve rod, be provided with stop nut.

The utility model is provided with intake chamber, refluxing chamber and water-supplying chamber owing to adopted said structure in valve body, described intake chamber has at least one water intake, and refluxing chamber has at least one backflow mouth of a river, and water-supplying chamber has water outlet; Described intake chamber is communicated with refluxing chamber, water-supplying chamber respectively; Between intake chamber and refluxing chamber, be provided with valve seat, intake chamber is communicated with refluxing chamber by valve seat, in intake chamber, be provided with the backwater spring, between backwater spring and valve seat, be provided with the steel ball that is used to seal intake chamber, refluxing chamber connection, one end of valve rod stretches in the refluxing chamber and is contained on the valve seat, valve rod matches with steel ball, and the valve rod the other end is connected with adjusting pressuring handle; Check lever is located in the water-supplying chamber.In the utility model,, thereby make the utility model reliable operation, easy to use by the work that matches of valve rod, steel ball, check lever, pressure adjusting spring, check spring etc.

After the detailed description of reading mode of execution of the present utility model in conjunction with the accompanying drawings, it is clearer that characteristics of the present utility model and advantage will become.

Description of drawings

Fig. 1 is the sectional view of mode of execution of the present utility model;

Fig. 2 is the structural representation of the valve seat of mode of execution of the present utility model;

Fig. 3 is the structural representation of mode of execution of the present utility model.

Embodiment

With a mode of execution the utility model is described in further detail below, but should illustrates, protection domain of the present utility model is not limited only to this.

Consult Fig. 1: a kind of pressure regulator valve, comprise valve body 7, it also comprises valve rod 6, check lever 10, is provided with pressure adjusting spring 4 on valve rod 6, is provided with check spring 9 on check lever 10.In valve body 7, be provided with intake chamber 15, refluxing chamber 17 and water-supplying chamber 16; Intake chamber 15 has two water intakes, is respectively first water outlet 13 and second water outlet 14, sees Fig. 1; Refluxing chamber 17 has two backflow mouths of a river, is respectively the first backflow mouth of a river 18 and the second backflow mouth of a river 19, sees Fig. 3; Water-supplying chamber 16 has water outlet 20; Intake chamber 15 is communicated with refluxing chamber 17, water-supplying chamber 16 respectively.Between intake chamber 15 and refluxing chamber 17, be provided with valve seat 8, intake chamber 15 is communicated with refluxing chamber 17 by valve seat 8, in intake chamber 15, be provided with backwater spring 12, between backwater spring 12 and valve seat 8, be provided with the steel ball 11 that is used to seal intake chamber 15, refluxing chamber 17 connections, one end of valve rod 6 stretches in the refluxing chamber 17 and is contained on the valve seat 8, valve rod 6 matches with steel ball 11, and valve rod 6 the other ends are connected with adjusting pressuring handle 2; Check lever 10 is located in the water-supplying chamber 16.Present embodiment also comprises adjusting pressuring handle lid 1, and this adjusting pressuring handle lid 1 is connected with adjusting pressuring handle 2.Be provided with stop nut 5 on valve rod 6, pressure adjusting spring 4 also is equipped with pressure adjusting spring pad 3.Wherein, the precision of steel ball 11 can be accomplished very high, and steel ball 11 does not have rigidity to fix again, so it is very tight that passage between intake chamber 15 and the refluxing chamber 17 can be accomplished, thereby the pressure regulation precision is improved.

When present embodiment was used, valve rod 6 broke away from valve rod 6 and steel ball 11 under the effect of pressure adjusting spring 4.Backwater spring 12 withstands on steel ball 11 in the valve seat 8, makes intake chamber 15 lead to refluxing chamber 17 these passages and is disconnected.Check lever 10 is being with O type circle 21 to form a half-duplex channel under the effect of check spring 9, makes the fluid can only be from refluxing chamber 17 to intake chamber 15, and can not be from intake chamber 15 to refluxing chamber 17.Intake chamber 15 communicates with first water intake 13 or second water intake 14, and refluxing chamber 17 communicates with first refluxing opening 18 or second refluxing opening 19, and water-supplying chamber 16 communicates with outlet 20.When fluid enters intake chamber 15 from first water intake 13,,, lead to outlet 20 from water-supplying chamber 16 again and come out so fluid can only lead to water-supplying chamber 16 from intake chamber 15 owing to the passage of intake chamber 15 to refluxing chamber 17 is cut off.Hydrodynamic pressure rising when water-supplying chamber 16, can pass to valve rod 6 to the inclined hole of refluxing chamber 17 by water-supplying chamber 16, when pressure is elevated to compressive force above pressure adjusting spring 4, can make valve rod 6 to steel ball 11 motions, thereby promote steel ball 11, so just opened the passage of intake chamber 15 to refluxing chamber 17, at this moment can enter into refluxing chamber 17 from intake chamber 15 by some fluid, flow out to first refluxing opening 18 or second refluxing opening 19 from refluxing chamber 17 again, thereby lowered whole pressure, the pressure of water-supplying chamber 16 and the pressure of pressure adjusting spring 4 are balanced each other.When outlet 20 no longer goes out fluid, and the fluid that enters from first water intake 13 does not stop, will make first water intake 13, intake chamber 15, water-supplying chamber 16, outlet 20 pressure constantly to rising, the pressure of water-supplying chamber 16 raises, will pass to valve rod 6, make valve rod 6 promote steel ball 11 and open the return flow line, open return flow line one, the pressure of first water intake 13, intake chamber 15 is descended, and water-supplying chamber 16 has been because there has been the existence of check lever 10 can't make fluid be back to intake chamber 15 step-downs from water-supplying chamber 16, and water-supplying chamber 16 remains the maximum pressure district.Intake chamber 15 is back to refluxing chamber 17 back pressure by steel ball 11 to be reduced, active force to steel ball 11 also descends, and the thrust of 6 pairs of steel balls 11 of valve rod does not descend, and just makes the two sides imbalance, the motion amplitude that valve rod 6 promotes steel ball 11 is bigger, until the motion amplitude maximum.At this moment, first water intake 13, intake chamber 15 drop to minimum because of the pressure that communicates with refluxing chamber 17.

Though described mode of execution of the present utility model in conjunction with the accompanying drawings; but those skilled in the art can make various distortion or modification within the scope of the appended claims; as long as be no more than the described protection domain of claim of the present utility model, all should be within protection domain of the present utility model.

Claims

1, a kind of pressure regulator valve includes valve body, it is characterized in that: also comprise valve rod, check lever, be provided with pressure adjusting spring on valve rod, be provided with check spring on check lever; Be provided with intake chamber, refluxing chamber and water-supplying chamber in valve body, described intake chamber has at least one water intake, and refluxing chamber has at least one backflow mouth of a river, and water-supplying chamber has water outlet; Described intake chamber is communicated with refluxing chamber, water-supplying chamber respectively; Between intake chamber and refluxing chamber, be provided with valve seat, intake chamber is communicated with refluxing chamber by valve seat, in intake chamber, be provided with the backwater spring, between backwater spring and valve seat, be provided with the steel ball that is used to seal intake chamber, refluxing chamber connection, one end of valve rod stretches in the refluxing chamber and is contained on the valve seat, valve rod matches with steel ball, and the valve rod the other end is connected with adjusting pressuring handle; Check lever is located in the water-supplying chamber.

2, pressure regulator valve according to claim 1 is characterized in that: also comprise the adjusting pressuring handle lid, this adjusting pressuring handle lid is connected with adjusting pressuring handle.

3, pressure regulator valve according to claim 1 is characterized in that: be provided with stop nut on valve rod.