CN208919410U - A kind of swing check valve - Google Patents

Abstract

The utility model discloses a kind of swing check valves, including valve body and valve deck, valve deck is fixedly installed with by fixing bolt at the center of the body top, the side of the valve deck bottom, which is bolted, is equipped with mounting base, the mounting base bottom is rotatably connected to connecting rod by shaft, the connecting rod is bolted far from one end of mounting base and is equipped with fixed disk, the fixed disk side, which is bolted, is equipped with flap, the valve inner is bolted close to the side of water inlet to be equipped with into water short tube, the water inlet short tube outer wall, which is bolted, is equipped with annular stop circle, this swing check valve is covered by flap in water inlet short tube outer wall, when the water of valve inner flows back in this way, flap can stop water flow completely, prevent water from flowing back, and the position of flap is limited by annular stop circle, it is anti- Only flap is stuck in into water short tube outer wall, and the water flow facilitated in water inlet washes flap open.

Description

A kind of swing check valve

Technical field

The utility model relates to check-valves technical field, specially a kind of swing check valve.

Background technique

Check-valves refers to opening and closing element for round flap and by own wt and pressure medium generation movement to block medium to fall A kind of valve of stream, belongs to automatic valve class, and also known as non-return valve, check valve, return valve or isolating valve, flap motion mode is divided into lifting Formula and swing type；Wherein swing check valve has a flap that is tilting and being pivoted, working principle and lift-type check Valve is similar, and check-valves is commonly used for the bottom valve of water plug, can prevent the reflux of water, and only valve is applied in combination with shut-off valve admittedly, can Play the role of security isolation.

1. existing swing check valve, in closed state, there are certain gaps between ball valve and water inlet short tube, so Water flow inside rear valve body can flow back along gap, to influence the normal use of check-valves.

2. existing swing check valve is opened, flap is rushed by water flow, and then flap can be touched with valve interior wall It hits, after long-term use, flap can be damaged, so that check-valves can not block water to flow back.

Utility model content

The purpose of this utility model is to provide a kind of swing check valves, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of swing check valve, including valve body and Valve deck is fixedly installed with valve deck by fixing bolt at the center of the body top, and the side of the valve deck bottom passes through spiral shell Bolt is fixedly installed with mounting base, and the mounting base bottom is rotatably connected to connecting rod by shaft, and the connecting rod is far from installation One end of seat, which is bolted, is equipped with fixed disk, and the fixed disk side, which is bolted, is equipped with flap, the valve Body one end offers water inlet, and the valve body other end offers water outlet, and the valve inner is logical close to the side of water inlet It crosses bolt to be fixedly installed with into water short tube, the water inlet short tube outer wall, which is bolted, is equipped with annular stop circle.

Preferably, the side of the valve interior wall, which is bolted, is equipped with support rod, and the support rod is far from valve body One end of inner wall, which is bolted, is equipped with press block, and the press block is located on the rotation track of fixed disk.

Preferably, the flap is round tube closed at one end, and the bottom of the flap inner wall is bonded with rubber spacer.

Preferably, the annular stop circle is used to limit the position of flap.

Preferably, the crevice place between the valve body and valve deck is uniformly bonded with seal washer.

Compared with prior art, the utility model has the beneficial effects that

1, the utility model is covered by flap in water inlet short tube outer wall, the water reflux of such valve inner, and flap can Water flow is stopped completely, prevents water from flowing back, and limits the position of flap by annular stop circle, and flap is prevented to be stuck in into water Short tube outer wall, the water flow facilitated in water inlet wash flap open.

2, when flap is washed open by water flow, flap rotates the utility model around mounting base, and then flap turns to press Block position supports flap by pressing block, prevents flap from colliding with valve interior wall, avoid flap and occur because of collision Damage, to improve the service life of flap.

Detailed description of the invention

Fig. 1 is the utility model main view cross-sectional close structural schematic diagram；

Fig. 2 is the utility model main view section opening structure schematic diagram；

Fig. 3 is the portion A structural schematic diagram in Fig. 1.

In figure: 1- valve body；11- water inlet；12- water outlet；13- water inlet short tube；14- annular stop circle；15- support rod； 16- presses block；2- valve deck；21- fixing bolt；22- mounting base；23- shaft；24- connecting rod；25- fixed disk；26- flap.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of swing check valve, including valve body 1 and valve Lid 2 is fixedly installed with valve deck 2 by fixing bolt 21 at the center at 1 top of the valve body, and the side of 2 bottom of valve deck is logical It crosses bolt and is fixedly installed with mounting base 22,22 bottom of mounting base is rotatably connected to connecting rod 24, the company by shaft 23 Extension bar 24 is bolted far from one end of mounting base 22 is equipped with fixed disk 25, and 25 side of fixed disk is solid by bolt Dingan County is equipped with flap 26, and described 1 one end of valve body offers water inlet 11, and 1 other end of valve body offers water outlet 12, described 1 inside of valve body is bolted close to the side of water inlet 11 to be equipped with into water short tube 13, and 13 outer wall of water inlet short tube is logical It crosses bolt and is fixedly installed with annular stop circle 14.

The side of 1 inner wall of valve body, which is bolted, is equipped with support rod 15, and the support rod 15 is far from valve body 1 One end of wall, which is bolted, is equipped with press block 16, and the press block 16 is located on the rotation track of fixed disk 25, works as valve When valve 26 is washed open by water flow, flap 26 is rotated around mounting base 22, and then flap 26 turns to press 16 position of block, passes through press Block 16 supports flap 26, prevents flap 26 from colliding with 1 inner wall of valve body, avoids flap 26 and is damaged because of collision, To improve the service life of flap 26.

The flap 26 is round tube closed at one end, and the bottom of 26 inner wall of flap is bonded with rubber spacer, by flap 26 are arranged to circular tube structure, facilitate 26 sets of flap in water inlet 13 outer wall of short tube, then by 26 inner wall adhesive rubber of flap Bed course, the leakproofness for increasing flap 26 between short tube 13 of intaking.

The annular stop circle 14 is used to limit the position of flap 26, and the position of flap 26 is limited by annular stop circle 14 It sets, prevents flap 26 to be stuck in the water flow facilitated in water inlet 11 into 13 outer wall of water short tube and wash flap 26 open.

Crevice place between the valve body 1 and valve deck 2 is uniformly bonded with seal washer, is improved by increasing seal washer Leakproofness between valve body 1 and valve deck 2.

Working principle: when in use, water flow is entered by water inlet 11, and then water flow washes flap 26 open, then flap 26 are rotated up around mounting base 22, and then flap 26 turns to press 16 position of block, support flap 26 by pressing block 16, It prevents flap 26 from colliding with 1 inner wall of valve body, avoids flap 266 and be damaged because of collision, to improve flap 26 Service life, when the water flow stops, flap 26 loses the impact force of water flow, then flap 26 around mounting base 22 downwards turn Dynamic, when then being flowed back by 26 sets of the flap water inside water inlet 13 outer wall of short tube, such valve body 1, flap 26 can hinder completely Water flow is blocked, prevents water from flowing back.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of swing check valve, including valve body (1) and valve deck (2), it is characterised in that: the center at the top of the valve body (1) Place is fixedly installed with valve deck (2) by fixing bolt (21), and the side of valve deck (2) bottom, which is bolted, to be equipped with It fills seat (22), mounting base (22) bottom is rotatably connected to connecting rod (24) by shaft (23), and the connecting rod (24) is remote One end from mounting base (22), which is bolted, to be equipped with fixed disk (25), and fixed disk (25) side is bolted It is equipped with flap (26), described valve body (1) one end offers water inlet (11), and valve body (1) other end offers water outlet (12), the internal side close to water inlet (11) of the valve body (1), which is bolted, is equipped with into water short tube (13), it is described into Water short tube (13) outer wall, which is bolted, is equipped with annular stop circle (14).

2. a kind of swing check valve according to claim 1, it is characterised in that: the side of valve body (1) inner wall is logical It crosses bolt to be fixedly installed with support rod (15), the support rod (15) is bolted peace far from one end of valve body (1) inner wall Equipped with press block (16), press block (16) is located on the rotation track of fixed disk (25).

3. a kind of swing check valve according to claim 1, it is characterised in that: the flap (26) is closed at one end The bottom of round tube, flap (26) inner wall is bonded with rubber spacer.

4. a kind of swing check valve according to claim 1, it is characterised in that: the annular stop circle (14) is for limiting Determine the position of flap (26).

5. a kind of swing check valve according to claim 1, it is characterised in that: between the valve body (1) and valve deck (2) Crevice place be uniformly bonded with seal washer.