CN203384448U - Pressure reducing valve provided with universal end covers - Google Patents

Abstract

The utility model discloses a pressure reducing valve provided with universal end covers. The pressure reducing valve provided with the universal end covers comprises a valve central spindle, a shaft sleeve, a sealing piece, a low pressure maintaining spring and the end covers installed at the two ends of the shaft sleeve respectively, wherein the valve central spindle is installed in the shaft sleeve and can slide along the shaft sleeve. Each end cover comprises a cover body and an outer end part, wherein the cover body forms an inner cavity of the end cover, the outer end part forms an outer cavity of the end cover, internal threads are arranged on the inner wall of the cover body, a through hole is formed in the center of the cover body, external threads matched with the internal threads of the cover body are arranged on the two sides of the shaft sleeve, the outer end part of the end cover is a cylinder in an approximately cylindrical shape, external threads or internal threads are arranged on the cylinder, and a first protruding ring extending along the through hole of the cover body to the inner cavity is arranged in the inner cavity of the end cover. The end covers are universal, free of adjustment, and capable of being matched with a water purifier for use.

Description

A kind of reduction valve with general end cap

Technical field

The utility model relates to the valve type technical field, more particularly, relates to a kind of reduction valve with general end cap for Drinking Water safety water supply devices such as household water filter, appliance water, piped direct-drinking water, high residential building districts.

Background technique

Along with the industrialized high speed development of urbanization, water resource pollution may continue to worsen, both urban and rural residents's health care consciousness improves constantly, the healthy water demand is grown with each passing day, household water filter has become the Chaoyang product of man and nature coordinated development, water purifier with its environmental protection sanitary economy easily characteristics more and more be subject to people favor, popularization and application is inexorable trends of current social development in huge numbers of families.Along with popularizing of household water filter, reduction valve has entered civil area, and it plays an important role at protection domestic water equipment and in improving domestic water safety, and application prospect widely will be arranged.

, even the reduction valve of the Drinking Water safety water supply device that is exclusively used in civil area is arranged, also there is the shortcoming that versatility is not strong in the household water filter reduction valve substitute material that still the industrial type reduction valve dwindles mostly at present, is difficult to displacement, to the user, makes troubles.

The model utility content

Technical problem to be solved in the utility model: for the deficiency of prior art, provide a kind of simple in structure, end cap can be general, avoid adjusting, being matched with the reduction valve used on water purifier, to overcome the deficiencies in the prior art.

The technical solution of the utility model is: a kind of reduction valve with general end cap, comprise poppet shaft, axle sleeve, Sealing, protect low pressing spring and be arranged on respectively the end cap at described axle sleeve two ends, described poppet shaft is arranged in axle sleeve and can slides along axle sleeve, described end cap comprises lid and outer end, formed the inner chamber of end cap by described lid, formed the exocoel of end cap by described outer end, described lid inwall is provided with internal thread, its center is provided with through hole, the both sides of described axle sleeve are respectively arranged with the outside thread suitable with the internal thread of described lid, the outer end of described end cap is cylindrical shell cylindraceous roughly, described cylindrical shell is provided with outside thread or internal thread, in the inner chamber of end cap, the first protruding ring extended along the inside cavity direction of the through hole of described lid.

Preferably, the pressurize edge of a knife that described the first protruding ring is the tubulose tooth shape.

Preferably, the inwall of described cylindrical shell is provided with internal thread, in the exocoel by the formed end cap of described cylindrical shell, along the outside cavity direction of the through hole of described lid, extends the second protruding ring.

Preferably, the longitudinally cutting face of described the second protruding ring is rectangle.

Preferably, be provided with exposing in zone of described axle sleeve outer wall the mistake proofing mark that indicates water (flow) direction.

Preferably, described poppet shaft front end is provided with plug.

Preferably, the plug of described poppet shaft can be resisted against on the first protruding ring.

Compared with prior art, the utlity model has following advantage.

1) reduction valve end cap highly versatile of the present utility model, end cap can be connected arbitrarily with the both sides of axle sleeve, and regardless of front and back, the installation direction of reduction valve is according to being illustrated in the water (flow) direction mark on the axle sleeve outer wall.

2) reduction valve end cap of the present utility model has respectively two kinds of specifications, be outer end be outer spiral shell literary composition structure or outer end be female thread structure, on selecting, only need determine according to the specification of external pipe arrangement, the end cap at axle sleeve two ends can be that unification is all externally threaded or unification is all internal thread, or be an end cap be externally threaded, another is internal thread, the applicability of end cap is very strong.

3) for reaching after generalization better effect of easing stress, reduction valve end cap of the present utility model is pressed into the plane soft rubber stopper of poppet shaft with the first protruding ring of endless knife bladed, this structure encapsulation is strong, it is tight to close, when downstream pressure reaches static pressure, the automatic tight closing of valve, go through 48 hours, keep static pressure constant, water-tight.The water purifier reduction valve is protected static pressure >=24 hour, can meet normal usage requirement, protects the static pressure function admirable.

3) reduction valve of the present utility model is provided with one of Bao Di Minus pressing spring, by valve core case respiratory cavity groove, props up the Brace spring at front end, and the spring the other end withstands the poppet shaft rear end, makes low hydraulic control valve often open and not reduce pressure.

4) reduction valve of the present utility model goes out the water steadying friction without dry sound, meets the usage requirement of household water filter safety and environmental protection, has improved Technical Economy and the ease of use of family by the Minus pressure valve.

The accompanying drawing explanation

The cut-away view of the reduction valve that Fig. 1 is the general end cap of the utility model band.

The part explosive view of the reduction valve that Fig. 2 is the general end cap of the utility model band.

The general end cap assembling schematic diagram of the reduction valve that Fig. 3 is the general end cap of the utility model band.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

Referring to Fig. 1-3, reduction valve with general end cap of the present utility model comprises poppet shaft 5, axle sleeve 3, Sealing, protect low pressing spring 4 and be arranged on respectively the end cap (2 at described axle sleeve two ends, 6), described poppet shaft 5 is arranged in axle sleeve 3 and can slides along axle sleeve, described end cap comprises lid and outer end, formed the inner chamber of end cap by described lid, formed the exocoel of end cap by described outer end, described lid inwall is provided with internal thread, its center is provided with through hole, the both sides of described axle sleeve are respectively arranged with the outside thread suitable with the internal thread of described lid, the outer end of described end cap is cylindrical shell cylindraceous roughly, described cylindrical shell is provided with outside thread or internal thread, in the inner chamber of end cap, the first protruding ring 8 extended along the inside cavity direction of the through hole of described lid.

The first protruding ring 8 is pressurize edges of a knife of tubulose tooth shape.The poppet shaft front end is provided with plug, the plug of poppet shaft can be resisted against on the first protruding ring, be pressed into the plane soft rubber stopper of poppet shaft with the first protruding ring of endless knife bladed, this structure encapsulation is strong, it is tight to close, when downstream pressure reaches static pressure, the automatic tight closing of valve, go through 48 hours, keep static pressure constant, water-tight.The water purifier reduction valve is protected static pressure >=24 hour, can meet normal usage requirement, protects the static pressure function admirable.

When the cylinder inboard wall of the outer end of end cap is provided with internal thread, in the exocoel by the formed end cap of described cylindrical shell, extend the second protruding ring 9 along the outside cavity direction of the through hole of described lid, the longitudinally cutting face of the second protruding ring 9 is rectangle, at the outside of the second protruding ring 9 assembling pad 1, makes end cap and external accessories form sealing.

Be provided with exposing in zone of axle sleeve 3 outer walls the mistake proofing mark 7 that indicates water (flow) direction, with the correct installation direction of prompting reduction valve.

As shown in Figure 3, the two ends of this reduction valve all are equipped with end cap 2, the cylinder inboard wall of the outer end of end cap 2 is provided with internal thread, in the exocoel by the formed end cap of described cylindrical shell, extend the second protruding ring 9 along the outside cavity direction of the through hole of described lid, and, at the inner chamber of end cap, be formed with the pressurize edge of a knife---first protruding ring 8 of tubulose tooth shape.This reduction valve be applicable to external accessories be all be with externally threaded.When reduction valve assembles, make the water (flow) direction of mistake proofing mark 7 when using of axle sleeve 3 outer walls can bring into play good decompression.

Referring to Fig. 1, the end cap of reduction valve also can adopt and adopt end cap 2 and end cap 6 simultaneously, and the outer end cylindrical shell of end cap 6 is provided with outside thread, in the inner chamber of end cap, and the first protruding ring 8 extended along the inside cavity direction of the through hole of described lid.End cap 6 can be placed in the influent side (not shown) of axle sleeve 3, also can be placed in the water outlet side (as shown in Figure 1) of axle sleeve 3, is mainly to determine according to the characteristics of the connection fittings of reduction valve both sides.

Above disclosed be only specific embodiment of the utility model; do not form the restriction to the utility model protection domain; all changes without the process creative work of doing according to technical solutions of the utility model, within all should dropping on protection domain model utility of the present utility model.

Claims (7)

1. the reduction valve with general end cap, comprise poppet shaft, axle sleeve, Sealing, protect low pressing spring and be arranged on respectively the end cap at described axle sleeve two ends, described poppet shaft is arranged in axle sleeve and can slides along axle sleeve, it is characterized in that: described end cap comprises lid and outer end, formed the inner chamber of end cap by described lid, formed the exocoel of end cap by described outer end, described lid inwall is provided with internal thread, its center is provided with through hole, the both sides of described axle sleeve are respectively arranged with the outside thread suitable with the internal thread of described lid, the outer end of described end cap is cylindrical shell cylindraceous roughly, described cylindrical shell is provided with outside thread or internal thread, in the inner chamber of end cap, the first protruding ring extended along the inside cavity direction of the through hole of described lid.

2. reduction valve according to claim 1, is characterized in that: the pressurize edge of a knife that described the first protruding ring is the tubulose tooth shape.

3. reduction valve according to claim 1, it is characterized in that: the inwall of described cylindrical shell is provided with internal thread, in the exocoel by the formed end cap of described cylindrical shell, along the outside cavity direction of the through hole of described lid, extends the second protruding ring.

4. reduction valve according to claim 3, it is characterized in that: the longitudinally cutting face of described the second protruding ring is rectangle.

5. according to the arbitrary described reduction valve of claim 1 to 4, it is characterized in that: exposing in zone of described axle sleeve outer wall, be provided with the mistake proofing mark that indicates water (flow) direction.

6. reduction valve according to claim 5, it is characterized in that: described poppet shaft front end is provided with plug.

7. reduction valve according to claim 6, it is characterized in that: the plug of described poppet shaft can be resisted against on the first protruding ring.

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