CN2118877U

CN2118877U - Improved single-way intermediate valve

Info

Publication number: CN2118877U
Application number: CN 92200512
Authority: CN
Inventors: 余政龙
Original assignee: CHENGLONG PLASTIC FACTORY Co Ltd
Current assignee: CHENGLONG PLASTIC FACTORY Co Ltd
Priority date: 1992-01-06
Filing date: 1992-01-06
Publication date: 1992-10-14

Abstract

The utility model provides an improved single-way intermediate valve, particularly an intermediate check valve block series which is movably arranged between a fixed seat and a bolt. The intermediate check valve block forms a circular disc shape, and the upper and lower convex parts of the intermediate check valve block are provided with guide columns to form a flat turbinate shape. Thus, the intermediate check valve block is provided with the function of axial movement, can be hidden and protected, and can carry out stably guiding and plug-stopping. The utility model can particularly enhance the accuracy of stopping the reverse flow and prolongs the service life of the check valve block. The utility model has the advantages of practicability and good economical benefits.

Description

Improved single-way intermediate valve

The utility model ties up to provides a kind of improved unidirectional intervening valve, its structure characteristic is: the hollow bolt that is situated between between dictyosome fixed base and fixed base is spirally connected, and between bolt and fixed base sheathed one feasible axially displaced check valve piece, in order to do making in this check valve piece is hidden in, especially have stable and safe start, with rate of reducing the wastage and the correct economic, practical benefit of preventing backflow.

Press, in the past the water pipe adapter of Water-pumping motor has two kinds: the one, and the irony valve, the one, the plastic cement valve, it all is to use screwing togather of screw and form a complete valve with a rubber washer with pad in the middle of the two flange fixed bases.So, if with the irony valve, the phenomenon that water and iron produce oxidation therefore in use, easily takes place, and iron is got rusty because of being based on irony in its material, causes the life-span of valve use to shorten.And because of the combination of two fixed bases is irony in use, running vibrations that can Yin Mada, and make the junction produce the phenomenon that pitches, so that fluid produces and leak, cause the Consumer to use and operation on inconvenience.The someone is long-pending being studied of considering of pains for this reason, through experiment for several times, the appearance of plastic cement valve is arranged finally, the former appearance of thinking this plastic cement valve, the puzzlement that can address the above problem, and bring Consumer one big Gospel, where you are and where it's at you see, after using, has following new problem to produce again:

One. when using some because of the packing ring of two flange fixed base centres in the future, the phenomenon that has corruption takes place, let out outside the fluid and cause, person very, if in conjunction with locking the time, the excessive rubber washer that also can take place of torsion produces distortion, causes closed intensity to be had a greatly reduced quality, and because the loss ratio height of packing ring more becomes Consumer's burden economically.

Two. commonly use the combination of two flange fixed bases, be to screw togather equally with the metal screw, be to be exposed to for a long time daylight, under the erosion of rainwater, easily produce oxidation and get rusty, so that when packing ring damages, pull down heavily to change and produce screw and do not open and rupture in fixed base, the valve that certainly will more renew again again, and cause Consumer's burden bigger, and in the restriction of changing, must be subjected to when adorning instrument.

Three. the inner flange of two fixed bases is rectangular shape, when water (flow) direction enters pipeline, water fills impact and produces whirlpool to the right angle flange near the right angle flange, make flow velocity produce resistance and increase the load of motor, cause Water-pumping motor because of the current load needs to consume more electric power greatly, produce the meaningless waste of electric power.

Four. the check valve piece combination in the conventional valve, a packing ring passes through by a screw in system, use a screw thereby mutually combine and be integral with corner block, because of being exposed in the water for a long time, cause the screw of check valve piece to produce oxidation and get rusty, these current are still irrelevant if be used for usefulness of industry or irrigation, but if be that to be used for the Consumer edible, understand getting rusty of coping screw and Consumer's health is exerted an adverse impact.

All innovation and creation are at the needs that Consumer and dealer are provided, and the puzzlement that solution Consumer and dealer are met in daily life, yet conventional valve, fail not only to provide that Consumer and dealer's is required, what is more, cause the Consumer economically burden and influence the health of Consumer's health, be under the popular situation of unfavorable consumption, gradually by the dealer and consumption is popular abandons.

The main purpose of the utility model; tying up to provides a kind of improved unidirectional intervening valve that protective function is ended and hidden to correct firm displacement envelope that has; especially line check valve piece both ends of the surface convex with guide pillar; and be sheathed between fixed base and hollow bolt spacing; and can be axially movable displacement is actively reached to reach the contrary economic, practical benefit of returning leak-stopping and prolonging check valve piece working life.

A purpose again of the utility model, tying up to provides a kind of improved unidirectional intervening valve that conveniently takes off the dictyosome fixed base that has, especially refer to that dictyosome fixed base one end is netted end in addition and is the screw adapter section, be one-body molded, special energy direct and bolt and fixed base combination, impel flow through valve and water handle through filtering, stop up preventing, guarantee that valve normally brings into play function of use.

Now in conjunction with the accompanying drawings, the utility model is elaborated, among the figure:

Fig. 1: the three-dimensional exploded view that is the utility model.

Fig. 1-A: the check valve piece combination of side view that is the utility model.

Fig. 2: the three-dimensional built-up section sectional view that is the utility model.

Fig. 3: the section effect schematic representation that is the utility model.

The utility model owner will comprise that members such as a dictyosome fixed base 3, a bolt 4, a check valve piece 5, a packing ring 60 and a fixed base 6 form; Wherein,

Fixed base 6 is to be to have the convex hollow article of circular row in conjunction with edge, its inner middle section is provided with the filter 61 that the netted Boulez middle-end of a tool has guide hole 611, be arranged with an annular binding groove 612 in filter 61 front-end face circular rows, in order to do embedding combination for packing ring 60, the leading portion internal diameter then is provided with an internal thread segment 62, is one-body molded;

Check valve piece 5 its inside are combined with the bigger bond of proportion, in order to do promoting check valve piece 5 return voluntarily for producing bigger gravity, its both ends of the surface central shaft is to convexing with

guide pillar

51,52, and front end is concaved with a circular row engagement groove 53, in order to do embedding combination for a rubber washer 54, the guide hole 611 of fixed base 6 was fastened by guide pillar 52 by system, and located a fixed base 6 leading portion centre, and spacing with a bolt 4 spiral shells knot;

Bolt 4 is to be hollow article, the surface is an outside thread 41 entirely, one end diametric plane is set as the dictyosome 42 with concentric guide hole 421, and be provided with one in conjunction with flange 422 in dictyosome 42 inner side surface circular rows, in order to do by other section and fixed base 6 internal thread segment 62 spiral shells knot, and fasten knot by the guide hole 421 and the guide pillar 51 of check valve piece 4, and make check valve piece 5 be subjected to 611,421 guiding of two guide holes to be in bolt 4 inside, in order to do doing correct axially displaced motion, and then correct the resistance in conjunction with flange 422 sealings, reflux to reach certain prevention;

Dictyosome fixed base 3 is one-body molded, and is hollow structure shape body, its front-end face sealing, and preceding section surface is equipped with the straight shape open-work 31 of most inleakages, other then is provided with internal thread segment 32 by the section internal diameter, in order to do with bolt 4 before the section spiral shell tie, and with fixed base 6 terminations.

By the combination of aforementioned each member, because of fixed base 6 and bolt 4 spiral shells knot, its both middle-ends have been fastened and have been with a check valve piece 5, and make this check valve piece 5 be subjected to the guiding of guide hole 611,421, only can do axially displacedly, and have the function of safety check; And,

guide pillar

51,52 bolts knots (as shown in Figure 3) because of its guide hole 611,421 and check valve piece 5, especially it is axially displaced to guide check valve piece 5 to do according to the axle center, so produce correct compacting sealing bolt 4 in conjunction with flange 422, to reach certain leak-stopping and to prevent the Practical Benefit of backflow; Moreover; it is (concentric with bolt 4 that this check valve piece 5 is in the shaft core position of bolt 4 forever; its external diameter and bolt internal diameter keep constant space), and can not produce skew, and be subjected to the duplicate protection of bolt 4, fixed base 6 and dictyosome fixed base 3; especially can make it avoid foreign object or add factor and produce damage; when when using, desire to be advanced into the water of valve inside, all earlier through 3 filterings of dictyosome fixed base; the spy can effectively prevent check valve piece 5 wearing and tearing, becomes so that the economic benefit that increases the service life is double.

Moreover, the combination of fixed base 6, packing ring 60, check valve piece 5 and bolt 4, the complete valve of having got everything ready function also can be taken off check valve piece 5 conversion and is changed to general water pipe adapter; Or, have the pond of dirt with cooperation with dictyosome fixed base 3 row and aforementioned components combination again, and as the filtering usefulness of drawing water, can reduce own friction damage of suction pump and valve especially, be to have the diversified purposes conversion of one to select for use.

To sum up institute is old, and the utility model really has the structure content of commonly using product innovation, also can reach more correctly to seal function Practical Benefit enhancement more than leak-stopping and the conversion purposes.

Claims

1, a kind of improved unidirectional intervening valve is characterized in that mainly comprising:

One fixed base is one-body molded, and is hollow tube, and inner middle section is established one and had the filter that netted Boulez middle-end has a guide hole, is concaved with engagement groove in this filter front-end face circular row, and the leading portion internal diameter is provided with internal thread segment;

One packing ring is that embedding is ringwise tied in the engagement groove of fixed base and located;

One check valve piece is one-body molded, and the centre is the protruding cardinal principle of dish type, forward and backward both ends of the surface convex with each guide pillar, in middle dish type leading portion then in conjunction with a rubber washer;

One bolt system is hollow tube, and the one end is provided with the dictyosome of concentric guide hole, be provided with one in conjunction with flange in this dictyosome inner side surface circular row, and the surface is an outside thread;

By the combination of aforementioned components, check valve piece is fastened cover with the bolt of mutual spiral shell knot and the guide hole of fixed base respectively with two guide pillars, and is positioned at bolt and fixed base inside, and must do axial correcting and displacement up and down.

2, unidirectional according to claim 1 intervening valve; It is characterized in that, the feasible direct spiral shell knot bolt combination of fixed base, and can constitute general pipe joint.

3, unidirectional according to claim 1 intervening valve; It is characterized in that, but the bolt leading portion also spiral shell tie a leading portion end face seal, outer diametric plane circular row has provided the dictyosome fixed base of open-work, in order to the filtering foreign material.