CN205938026U - Adjustable no diaphragm formula pressure regulating valve - Google Patents

Abstract

The utility model discloses an adjustable no diaphragm formula pressure regulating valve, including valve casing and end cover, the right -hand member integrated into one piece of valve casing has an into oil pipe, and the inside sliding connection of valve casing has a disk seat, seted up the through -hole on the disk seat, the mid -mounting of disk seat right -hand member have with the valve head that advances oil pipe left end looks adaptation, the left end of disk seat is connected with the pressure spring, and the other end of pressure spring is connected with the right flank of end cover, the right flank of end cover still integrated into one piece has cylindric connection mounting, connects the mounting side surface and has seted up the external screw thread. The utility model discloses a cooperation of end cover, connection mounting and valve casing can be adjusted by the comparatively convenient tautness to the pressure spring to played the effect to fuel pressure regulation, it is comparatively convenient to adjust, simultaneously the utility model discloses cancelled the setting of diaphragm, avoided that the diaphragm is ageing, the emergence of deformation and short -lived scheduling problem.

Description

A kind of scalable no diaphragm pressure regulating valve

Technical field

This utility model is related to pressure-regulating valve technical field, specially a kind of scalable no diaphragm pressure regulating valve.

Background technology

The pressure-regulating valve of prior art, including valve gap, valve body, valve seat, core assembly, diaphragm, diaphragm spring and spring Seat, valve gap presses at diaphragm with valve body and is fixedly connected, and core assembly is fixedly connected with diaphragm and spring base, and diaphragm spring is arranged In valve gap, one end of diaphragm spring acts on diaphragm by spring base, and the other end is contacted with the bottom surface of valve gap, core assembly Sealing surface in the presence of diaphragm spring the sealed end pressure contact with valve seat, valve seat is arranged on valve seat support, and valve seat props up It is fixedly connected in frame insertion valve body and with valve seal, valve seat support is provided with the oil outlet gone out for fuel oil, in valve body It is provided with the oil nozzle joint entering for fuel oil and inlet nozzle.This pressure-regulating valve needs higher to the mounting process of diaphragm Require, the concordance installing rear product is poor, need to carry out adjustment one by one, in addition diaphragm easily aging breakage.Exist and adjust The inconvenient problem with short life.

Utility model content

The purpose of this utility model is to provide a kind of scalable no diaphragm pressure regulating valve, to solve above-mentioned background skill The problem proposing in art.

For achieving the above object, this utility model provides following technical scheme：A kind of scalable no diaphragm pressure is adjusted Valve, including valve casing and end cap, integrally formed with oil inlet pipe, the internal slide of valve casing is connected with valve seat to the right-hand member of described valve casing, institute State and through hole is offered on valve seat, the middle part of valve seat right-hand member is provided with the valve head being adapted with oil inlet pipe left end, a left side for described valve seat End is connected with stage clip, and the other end of stage clip is connected with the right flank of end cap, and the right flank of described end cap is also integrally formed with cylinder The connection fixture of shape, connection fixture side surface offers external screw thread, and this connection fixture passes through external screw thread and valve casing left end Female thread that medial surface opens up connects, the left surface of described end cap integrally formed with flowline, the inner chamber of this flowline and valve casing Connection.

Preferably, the quantity of described through hole is no less than four, and the equidistant circumference being circumferentially positioned at valve head of through hole.

Preferably, the lateral surface of described connection fixture right-hand member is embedded with the sealing ring of ring-type.

Preferably, the left end of described stage clip is located at the inner side of connection fixture.

Compared with prior art, the beneficial effects of the utility model are：This scalable no diaphragm pressure regulating valve, utilizes The valve head being adapted with oil inlet pipe is sealed to oil inlet pipe, and preferably, mounting process is simple, and stage clip can be to valve seat for sealing effectiveness Carry out compensating roller, simultaneously worked as the effect that valve head is adjusted, sealing ring can be to the junction of connection fixture and valve casing Sealed, it is to avoid fuel oil is revealed from junction, this utility model passes through the cooperation of end cap, connection fixture and valve casing, can Conveniently the tautness of stage clip being adjusted, thus serving the effect that fuel pressure is adjusted, adjusting more convenient, This utility model eliminates the setting of diaphragm simultaneously, it is to avoid diaphragm is aging, deformation and generation the problems such as short life.

Brief description

Fig. 1 is this utility model cross-sectional view.

In figure：1 valve casing, 2 oil inlet pipes, 3 valve heads, 4 valve seats, 5 flowlines, 6 end caps, 7 sealing rings, 8 stage clips, 9 through holes, 10 companies Connect fixture.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of this utility model protection.

Refer to Fig. 1, this utility model provides a kind of technical scheme：A kind of scalable no diaphragm pressure regulating valve, bag Include valve casing 1 and end cap 6, integrally formed with oil inlet pipe 2, the internal slide of valve casing 1 is connected with valve seat 4, valve seat 4 to the right-hand member of valve casing 1 On offer through hole 9, the quantity of through hole 9 is no less than four, and the equidistant circumference being circumferentially positioned at valve head 3 of through hole 9, valve seat The middle part of 4 right-hand members is provided with the valve head 3 being adapted with oil inlet pipe 2 left end, using the valve head 3 being adapted with oil inlet pipe 2 to oil-feed Pipe 5 is sealed, and preferably, mounting process is simple for sealing effectiveness, and the left end of valve seat 4 is connected with stage clip 8, the other end of stage clip 8 with The right flank of end cap 6 connects, and the left end of stage clip 8 is located at the inner side of connection fixture 10, and stage clip 8 can carry out elastic to valve seat 4 Adjust, simultaneously worked as the effect that valve head 3 is adjusted, the right flank of end cap 6 is also integrally formed with cylindric connection fixture 10, the lateral surface of connection fixture 10 right-hand member is embedded with the sealing ring 7 of ring-type, and sealing ring 7 can be to connection fixture 10 and valve The junction of shell 1 is sealed, it is to avoid fuel oil is revealed from junction, and connection fixture 10 side surface offers external screw thread, and this is even Connect fixture 10 to be connected by the female thread that external screw thread is opened up with valve casing 1 left end medial surface, the left surface of end cap 6 integrally formed with Flowline 5, the inner space of this flowline 5 and valve casing 1, this utility model passes through end cap 6, connection fixture 10 and valve casing 1 Cooperation, can conveniently be adjusted to the tautness of stage clip 8, thus serving the effect that fuel pressure is adjusted, adjust Section is more convenient, and this utility model eliminates the setting of diaphragm simultaneously, it is to avoid diaphragm is aging, deformation and the problems such as short life Generation.

Operation principle：During utility model works, the right-hand member of oil inlet pipe 2 is connected with automobile oil supply pipe, and fuel oil is by fuel feeding Pipeline enters in oil inlet pipe 2, so that the pressure in oil inlet pipe 2 is increased, when in oil inlet pipe 2, pressure is more than or equal to the pressure of stage clip 8 When, valve head 3 is opened under fuel pressure effect, and part fuel oil enters through hole 9 and enters into discharge in flowline 5, now in oil inlet pipe 2 Reduced pressure, valve seat 4 drives valve head 3 to prop up oil inlet pipe 2 under stage clip 8 effect, and fuel oil stops discharging.

When needing stage clip 8 pressure is adjusted, rotary end cover 6, the deformation quantity of stage clip 8 changes, that is, right to valve head 3 The pressure of oil inlet pipe 2 left end changes, and regulation completes.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and spirit, repair Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of scalable no diaphragm pressure regulating valve, including valve casing (1) and end cap (6) it is characterised in that：Described valve casing (1) right-hand member is connected with valve seat (4), described valve seat (4) opens up integrally formed with oil inlet pipe (2), the internal slide of valve casing (1) There is through hole (9), the middle part of valve seat (4) right-hand member is provided with the valve head (3) being adapted with oil inlet pipe (2) left end, described valve seat (4) Left end is connected with stage clip (8), and the other end of stage clip (8) is connected with the right flank of end cap (6), and the right flank of described end cap (6) is also Integrally formed with cylindric connection fixture (10), connection fixture (10) side surface offers external screw thread, and this is connected Part (10) is connected by the female thread that external screw thread is opened up with valve casing (1) left end medial surface, and the left surface one of described end cap (6) becomes Type has the inner space of flowline (5), this flowline (5) and valve casing (1).

2. a kind of scalable according to claim 1 no diaphragm pressure regulating valve it is characterised in that：Described through hole (9) Quantity be no less than four, and the equidistant circumference being circumferentially positioned at valve head (3) of through hole (9).

3. a kind of scalable according to claim 1 no diaphragm pressure regulating valve it is characterised in that：Described it is connected The lateral surface of part (10) right-hand member is embedded with the sealing ring (7) of ring-type.

4. a kind of scalable according to claim 1 no diaphragm pressure regulating valve it is characterised in that：Described stage clip (8) Left end be located at connection fixture (10) inner side.