CN207814573U - A kind of pressure-regulating valve - Google Patents

Abstract

This application provides a kind of pressure-regulating valves, including valve body, wherein further includes：Spool, spring, valve deck and strainer, there is the epicoele and cavity of resorption being mutually communicated in the valve body, the spool is movably arranged on the lower intracavitary of the valve body, the valve deck is arranged in the lower end of the valve body, the spring is arranged in the lower intracavitary, and the spring is kept out between the spool and the valve deck, the strainer is locked at the upper end of the valve body by being clasped, it is arranged with sealing ring on the periphery of the valve body, several side openings are offered in the middle part of the valve body, when the pressure of the upper intracavitary reaches preset value, the open-top spool of fluid is flowed out from the side opening, when the pressure of the upper intracavitary is less than preset value, the spool withstands the side opening.Pressure-regulating valve provided by the present application, since parts are less, installation procedure is few, thus production efficiency greatly improves.

Description

A kind of pressure-regulating valve

Technical field

The utility model is related to regulating valve technical fields, more particularly to a kind of pressure-regulating valve.

Background technology

Pressure-regulating valve is used in the hydraulic system of the Work machine of automatic running, and many hydraulic pumps are equipped with bypass Flow path, to adjust pressurization size of the hydraulic pump to liquid.Pressure-regulating valve is provided in bypass flow path, adjustment process passes through The spring reaction highly pressurised liquid being arranged in regulating device pushes spool to being sealed into fluid passage the active force of spool Stifled, still, existing pressure-regulating valve parts are more, and installation procedure is more, and production efficiency is not high.

Utility model content

The purpose of this utility model is to provide a kind of pressure-regulating valve, solve existing pressure-regulating valve parts compared with More, installation procedure is more, the not high problem of production efficiency.

In order to solve the above technical problems, the utility model provides the following technical solutions：

A kind of pressure-regulating valve, including valve body, wherein further include：Spool, spring, valve deck and strainer, the interior tool of the valve body There are the epicoele and cavity of resorption being mutually communicated, the spool to be movably arranged on the lower intracavitary of the valve body, the valve deck is arranged described The lower end of valve body, the spring is arranged in the lower intracavitary, and the spring is kept out between the spool and the valve deck, institute The upper end that strainer is locked at the valve body by being clasped is stated, sealing ring, the valve body are arranged on the periphery of the valve body Middle part offer several side openings, when the pressure of the upper intracavitary reaches preset value, the open-top spool of fluid is from the side Hole is flowed out, and when the pressure of the upper intracavitary is less than preset value, the spool withstands the side opening.

Further, the spool includes lower protruding block and the connecting plate that is arranged in the lower protruding block, the connecting plate Upper surface can be kept out in the inner convex platform lower end of the valve body.

Further, one end of the spring is set in the protrusion of the lower protruding block, another end cap of the spring It is located on the locating ring of the valve deck.

Further, the through-hole penetrated through with the cavity of resorption is offered in the middle part of the valve deck.

Further, the valve deck is connect by screw thread with the valve body.

Further, there is fin on the inner wall of the strainer, have and the fin on the periphery of the valve body upper end Compatible groove.

Further, the diameter of the cavity of resorption is more than the diameter of the epicoele.

The utility model has the advantages that it can be seen from above-mentioned technical proposal：

1. since pressure-regulating valve provided by the utility model includes：Spool, spring, valve deck and strainer, thus part it is few, Installation procedure is few, production efficiency is high.

2. pressure-regulating valve provided by the utility model, adjustable by adjusting position of the valve deck in the valve body Pressure preset is saved, the pressure of pressure valve can be easily and accurately adjusted.

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.

Fig. 1 is the cross-sectional view of the utility model.

Fig. 2 is the dimensional structure diagram of the utility model.

Fig. 3 is the partial structural diagram of Fig. 2 of the utility model.

Reference sign：

Strainer -1, sealing ring -2, valve body -3, side opening -33, inner convex platform -34, epicoele -35, cavity of resorption -36, spool -4, connection Plate -41, lower protruding block -42, spring -5, valve deck -6, locating ring -61.

Specific implementation mode

The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by right It is required that the multitude of different ways for limiting and covering is implemented.

The application is described further below with reference to Fig. 1 to Fig. 3, a kind of pressure-regulating valve as shown in Figure 1, including valve Body 3 further includes：Spool 4, spring 5, valve deck 6 and strainer 1, the valve body 3 is interior to have the epicoele 35 being mutually communicated and cavity of resorption 36, The spool 4 is movably arranged in the cavity of resorption 36 of the valve body 3, and the valve deck 6 is arranged in the lower end of the valve body 3, the bullet Spring 5 is arranged in the cavity of resorption 36, and the spring 5 is kept out between the spool 4 and the valve deck 6, and the strainer 1 passes through It is clasped and is locked at the upper end of the valve body 3, sealing ring 2, the middle part of the valve body 3 are arranged on the periphery of the valve body 3 Several side openings 33 are offered, when the pressure in the epicoele 35 reaches preset value, the open-top spool 4 of fluid is from the side opening 33 flow out, and when the pressure in the epicoele 35 is less than preset value, the spool 4 withstands the side opening 33, and the utility model carries The pressure-regulating valve part of confession is few, small, simple in structure, cost-effective.

The sealing ring 2 is set on the periphery of the epicoele 35, specifically, the sealing ring 2 is O-ring seals, is adopted It is made of fluorubber material.

As shown in Figure 1, the spool 4 includes lower protruding block 42 and the connecting plate 41 being arranged in the lower protruding block 42, it is described The upper surface of connecting plate 41 can be kept out in 34 lower end of inner convex platform of the valve body 3.

Specifically, the inner convex platform 34 is between the epicoele 35 and cavity of resorption 36.

As shown in figure 3, one end of the spring 5 is set in the protrusion of the lower protruding block 42, the other end of the spring 5 It is set on the locating ring 61 of the valve deck 6 so that 5 stable work in work of the spring.

As shown in Figure 1, the middle part of the valve deck 6 offers the through-hole penetrated through with the cavity of resorption 36.

The valve deck 6 is connect by screw thread with the valve body 3, by adjusting position of the valve deck 6 in the valve body 3 It sets, the pressure preset is adjusted, can easily and accurately adjust the pressure of pressure valve.

There is fin on the inner wall of the strainer 1, have on the periphery of 3 upper end of the valve body compatible with the fin Groove realizes that the strainer 1 and 3 upper end of the valve body are clasped locking.

The diameter of the cavity of resorption 36 is more than the diameter of the epicoele 35.

Several side openings 33 are uniformly distributed along the circumferential direction of the valve body 3.

Preferably, the number of the side opening 33 is 3.

The strainer 1 is made of nylon plastic(s) and screen cloth, and the valve body 3 is made of stainless steel, and the spool 4 uses Stainless steel and fluorubber are made.

As shown in Figure 1, when assembly, sealing ring 2 is first loaded onto on the valve body 3, then be pressed into the strainer 1, the strainer 1 Pass through the upper end locking being clasped with the valve body 3.It is then charged into spool 4 and spring 5, is finally screwed into the valve deck 6, it is described It is screw-thread fit between valve deck 6 and the valve body 3.Test determine the pressure-regulating valve by pressure after, in the valve Two points of sleeving and riveting fix the valve deck 6 on body 3, and installation procedure is few, production efficiency is high.

When the pressure in the epicoele 35 reaches the preset pressure value of the pressure-regulating valve, the open-top spool of fluid 4 flow out from the side opening 33 of the valve body 3, when the pressure in the epicoele 35 is less than the preset pressure value of the pressure-regulating valve When, the spool 4 is tightly abutted against the lower end of the inner convex platform 34 under the elastic acting force of the spring 5, by the side opening 33 sealings, at this point, the pressure-regulating valve is closed.

The preferred embodiment that these are only the utility model, is not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (7)

1. a kind of pressure-regulating valve, including valve body (3), which is characterized in that further include：Spool (4), spring (5), valve deck (6) and Strainer (1), the valve body (3) is interior, and there is the epicoele (35) being mutually communicated and cavity of resorption (36), the spool (4) to be movably arranged on institute In the cavity of resorption (36) for stating valve body (3), in the lower end of the valve body (3), the spring (5) is arranged in institute for valve deck (6) setting It states in cavity of resorption (36), and the spring (5) is kept out between the spool (4) and the valve deck (6), the strainer (1) passes through It is clasped and is locked at the upper end of the valve body (3), sealing ring (2), the valve body are arranged on the periphery of the valve body (3) (3) several side openings (33) are offered in the middle part of, when the pressure in the epicoele (35) reaches preset value, the open-top valve of fluid Core (4) is flowed out from the side opening (33), and when the pressure in the epicoele (35) is less than preset value, the spool (4) keeps out residence State side opening (33).

2. pressure-regulating valve according to claim 1, which is characterized in that the spool (4) includes lower protruding block (42) and sets The connecting plate (41) in the lower protruding block (42) is set, the upper surface of the connecting plate (41) can be kept out in the valve body (3) Inner convex platform (34) lower end.

3. pressure-regulating valve according to claim 2, which is characterized in that one end of the spring (5) be set in it is described under In the protrusion of convex block (42), the other end of the spring (5) is set on the locating ring (61) of the valve deck (6).

4. pressure-regulating valve according to claim 3, which is characterized in that offered in the middle part of the valve deck (6) with it is described The through-hole of cavity of resorption (36) perforation.

5. pressure-regulating valve according to claim 4, which is characterized in that the valve deck (6) passes through screw thread and the valve body (3) it connects.

6. pressure-regulating valve according to claim 1, which is characterized in that have fin, institute on the inner wall of the strainer (1) Stating has groove compatible with the fin on the periphery of valve body (3) upper end.

7. pressure-regulating valve according to claim 1, which is characterized in that the diameter of the cavity of resorption (36) is more than the epicoele (35) diameter.