CN201121741Y - Current limiting one-way valve - Google Patents

Abstract

The utility model discloses a current limiting rebound valve comprising a valve body, a valve cover and a valve core; the valve body is buckled with the valve cover; a hollow hole is arranged on the valve cover, and an elastic O-shaped ring is sleeved on the hollow hole; one end of the valve core movably passes through the hollow hole of the valve cover, the other end is sleeved with an elastic sealing ring, and a spring is propped between the valve cover and the valve core; the outer wall of the valve body is sleeved with a sealing ring. Compared with the rebound valve in the prior art, the current limiting valve cover and the valve body adopt the tight fit way of buckling, so as to enable the whole structure of the rebound valve to be firmer; the purposes of fast stopping water and preventing water from backward flowing can be realized through arranging the spring and the sealing ring on the valve core; besides, the limitation to the water flow can be realized through the elastic O-shaped ring on the valve cover, thereby achieving best water-saving effect.

Description

Check valve of current limiter

Technical field

The utility model relates to a kind of valve, is meant a kind of one-way valve with current-limiting function especially.

Background technique

The structure that existing one-way valve adopts can be referring to Chinese patent literature in the disclosed ZL02269172.3 one-way valve of 2003.08.13, though its structure is simple, sealing is slow in one's movements, is unfavorable for water saving, and can't realizes the current quantitative limitation.

Summary of the invention

At the defective that exists in the prior art, the utility model provides a kind of structure firm Check valve of current limiter, and this one-way valve can be realized quick sealing, prevents aqueous reflux, and can limit flow of inlet water, reaches significant water-saving result.

For achieving the above object, technical solution of the present invention is:

Check valve of current limiter comprises valve body, valve gap and spool, the fixedly connected valve gap of described valve body; Offer hollow hole on the described valve gap, an elastic O-ring is thereon sheathed; Described spool one end activity is arranged in the hollow hole of valve gap, and the other end is arranged with an elastic seal ring, and a spring is resisted against between valve gap and the spool.

Described valve gap is connected with the valve body buckle.

Valve outer wall is arranged with a seal ring.

The usefulness of technique scheme is:

Compare with one-way valve of the prior art, current limliting valve gap and valve body are adopted the drive fit mode that fastens, make one-way valve whole in conjunction with more firm; Realize quick sealing by the spring and the seal ring that are provided with on the spool, prevent the purpose of aqueous reflux; Also, realize restriction water flow size, reach splendid water-saving result with this by the elastic O-ring on the valve gap.

Description of drawings

Fig. 1 is the utility model state of rest structural representation;

Fig. 2 is the utility model water outlet status architecture schematic representation.

Embodiment

The utility model now is described in conjunction with the accompanying drawings and embodiments.

Check valve of current limiter as shown in Figure 1, 2 comprises valve body 5, valve gap 1 and spool 4, and valve gap 1 is connected to a firm integral body with valve body 5 buckles.

Described valve body 5 outer walls are arranged with a seal ring 6, the sealing that sealing circle 6 is realized between Check valve of current limiter and the counterpart.

Offer a hollow hole on the described valve gap 1, an elastic O-ring 2 is thereon sheathed.

Described spool 4 one end activities are arranged in the hollow hole of valve gap 1, the other end is arranged with an elastic seal ring 8, as shown in Figure 1: when Check valve of current limiter during in state of rest, this elastic seal ring 8 tightly is resisted against between spool 4 and valve body 5 inwalls, and a spring 3 is resisted against between valve gap 1 and the spool 4.

As shown in Figure 2: when feed-water end 9 water sources were opened, spool 4 was subjected to the pipeline hydraulic action, and the resistance that overcomes spring 3 moves toward waterexit end 10, makes elastic seal ring 8 leave valve body 5 inwalls, and 10 directions move towards the waterexit end, thereby realized water flowing.At this moment, elastic O-ring 2 is subjected to the effect of hydraulic pressure, and its shape of cross section changes with the variation of hydraulic pressure, and then changes the discharge area of current through valve gap 1, realizes the purpose of restriction water flow size.When feed-water end 9 water sources were closed, spool 4 was moved toward feed-water end 9 by the restoring force effect of spring 3 elastic force, elastic seal ring 8 and valve body 5 inwalls is tightly fit together, thereby realize quick sealing, reaches the purpose that prevents aqueous reflux.Adopt the Check valve of current limiter of said structure whole more firm, and water-saving result is more excellent in conjunction with getting.

Claims (3)

1, Check valve of current limiter comprises valve body (5), valve gap (1) and spool (4), it is characterized in that described:

Valve body (5): its fixedly connected valve gap (1);

Valve gap (1): offer hollow hole on it, an elastic O-ring (2) is thereon sheathed;

Spool (4): the activity of one end is arranged in the hollow hole of valve gap (1), and the other end is arranged with an elastic seal ring (8), and a spring (3) is resisted against between valve gap (1) and the spool (4).

2, Check valve of current limiter as claimed in claim 1 is characterized in that: described valve gap (1) is connected with valve body (5) buckle.

3, Check valve of current limiter as claimed in claim 1 or 2 is characterized in that: valve body (5) outer wall is arranged with a seal ring (6).

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