CN205331519U

CN205331519U - Y rising -down check valve that appears

Info

Publication number: CN205331519U
Application number: CN201520967834.XU
Authority: CN
Inventors: 陈玉国
Original assignee: YINGKOU ACE WITT VALVE Co Ltd
Current assignee: YINGKOU ACE WITT VALVE Co Ltd
Priority date: 2015-11-30
Filing date: 2015-11-30
Publication date: 2016-06-22
Anticipated expiration: 2025-11-30

Abstract

The utility model relates to a check valve trade technical field, in particular to Y rising -down check valve that appears, including valve body, disk seat and valve gap, the inner chamber of valve body control end is provided with disk seat and valve gap pretension board, and the last fixed surface of disk seat is provided with the valve clack, and the lateral wall of valve clack is provided with the keyway, and this keyway is through the inner chamber looks fixed connection of direction parallel key with the valve body, the valve clack passes through cylindrical spring and valve gap looks fixed connection, and the full thread double -screw bolt is connected valve gap pretension board and valve gap, and inlaying of control end inner chamber is equipped with segmentation holding ring, backing ring and sealing ring, seat sealing conical face's cone angle is 40 degrees, and valve sealing conical face's cone angle is 50 degrees. Using the utility model discloses the time, the device's sealing performance is good, does not leak, sealed no wear of face and scotch, the operation moment of torsion is little, opens and close the flexibility, compares with the like product to have higher cv value. The utility model has the advantages of simple structure, it is reasonable to set up, and the cost of manufacture is low.

Description

A kind of Y shape lift check valve

Technical field

This utility model relates to check-valves industry technology field, particularly to a kind of Y shape lift check valve。

Background technology

Valve is the element of the flow of streaming flow, pressure in confinement tube。It is divided into cut-out class valve according to application purpose difference and regulates class valve etc.。Cut off class valve and be used as cut-out fluid flowing, generally have gate valve, stop valve, check-valves etc.。

Wherein, Y shape lift check valve is valve relatively conventional in check-valves, jam when common Y shape lift returns valve to prevent flap from moving, at the runner exit place that valve body lumen coordinates with flap, one guiding rib is all set, the setting of this muscle not only reduces the flow area in exit, but also increase the resistance of convection cell, the Cv value of valve is made a big impact。Flap is after opening process and unlatching, and owing to the percussion of medium can produce to rotate, this rotation return spring to being arranged on flap produces moment of torsion, and spring is adversely affected, and sealing and operation to valve can exert an adverse impact。

Therefore be necessary the structure of existing Y shape lift check valve is carried out technological innovation further。

Summary of the invention

The purpose of this utility model is in that the defect for prior art and deficiency, it is provided that a kind of simple in construction, Y shape lift check valve reasonable in design, easy to use。

For achieving the above object, the technical solution adopted in the utility model is: a kind of Y shape lift check valve described in the utility model, including valve body, valve seat and valve gap, described valve body is provided with control end, entrance point and the port of export, the inner chamber of described control end is provided with valve seat, and it also includes full thread stud, and the upper surface of described valve seat is fixedly installed flap, the sidewall of described flap is provided with keyway, and this keyway is fixedly connected by the inner chamber of dive key Yu valve body；The inner chamber of described flap is embedded with cylindrical spring, the top of described cylindrical spring and valve gap are fixedly connected, the port of described control end is fixedly installed valve gap pretension plate, threadeding mutually with the screw of valve gap in described full thread stud one end after the through hole of valve gap pretension plate, the described full thread stud other end is threadeded mutually with nut；The draw-in groove of described control end inner chamber is embedded with split fix ring, and split fix ring is arranged between valve gap pretension plate and valve gap；Described control end internal chamber wall is embedded with gasket ring and sealing ring；Along control end axially, sealing ring is arranged between gasket ring and split fix ring；Always seeing along the footpath controlling end, gasket ring, sealing ring are arranged between valve gap and the internal chamber wall of valve body；The seat sealing cone of described valve seat matches with the valve sealing cone of valve body, and the cone angle of seat sealing cone is 40 degree, and the cone angle of valve sealing cone is 50 degree。

Further, the bottom of described cylindrical spring is embedded in the boss of valve seat upper surface。

Further, the center screw on described valve gap pretension plate surface is threaded lifting bolt。

After adopting said structure, this utility model has the beneficial effect that when using this utility model, and the good seal performance of this device does not leak, and sealing surface is without abrasion and scratch；In process of production, it is possible to save material, cost is reduced；Dismount that easy to maintenance fast operation moment of torsion is little, open and close flexibly, there is higher Cv value compared with similar products。This utility model has simple in construction, arranges rationally, the advantages such as cost of manufacture is low。

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of valve body；

Fig. 3 is valve seat and the structural representation of flap connection。

Description of reference numerals: 1, valve body；1-1, valve sealing cone；2, valve seat；2-1, seat sealing cone；3, dive key；4, flap；4-1, keyway；5, cylindrical spring；6, valve gap；7, gasket ring；8, sealing ring；9, split fix ring；10, valve gap pretension plate；11, full thread stud；12, nut；13, lifting bolt。

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is further described。

As Figure 1-3, a kind of Y shape lift check valve described in the utility model, including valve body 1, valve seat 2 and valve gap 6, described valve body 1 is provided with control end, entrance point and the port of export, the inner chamber of described control end is provided with valve seat 2, it also includes full thread stud 11, the upper surface of described valve seat 2 is fixedly installed flap 4, the sidewall of described flap 4 is provided with keyway 4-1, this keyway 4-1 is fixedly connected by the inner chamber of dive key 3 with valve body 1, it is prevented that the jam in the rotation of flap 4 and lifting process。The inner chamber of described flap 4 is embedded with cylindrical spring 5, the top of described cylindrical spring 5 and valve gap 6 are fixedly connected, the port of described control end is fixedly installed valve gap pretension plate 10, threadeding mutually with the screw of valve gap 6 in described full thread stud 11 one end after the through hole of valve gap pretension plate 10, described full thread stud 11 other end is threadeded with nut 12 phase；The draw-in groove of described control end inner chamber is embedded with split fix ring 9, and split fix ring 9 is arranged between valve gap pretension plate 10 and valve gap 6；Described control end internal chamber wall is embedded with gasket ring 7 and sealing ring 8；Along control end axially, sealing ring 8 is arranged between gasket ring 7 and split fix ring 9；Always seeing along the footpath controlling end, gasket ring 7, sealing ring 8 are arranged between the internal chamber wall of valve gap 6 and valve body 1。

The seat sealing cone 2-1 of described valve seat 2 matches with the valve sealing cone 1-1 of valve body 1, and the cone angle of seat sealing cone 2-1 is 40 degree, and the cone angle of valve sealing cone 1-1 is 50 degree；Valve valve base sealing adopts line contact sealing。

Further, the bottom of described cylindrical spring 5 is embedded in the boss of valve seat 2 upper surface。

Further, the center screw on described valve gap pretension plate 10 surface is threaded lifting bolt 13。

When using this utility model, the good seal performance of this device, do not leak, sealing surface is without abrasion and scratch；In process of production, it is possible to save material, cost is reduced；Dismount that easy to maintenance fast operation moment of torsion is little, open and close flexibly, there is higher Cv value compared with similar products。It addition, this simple in construction, reasonable in design, low cost of manufacture。

The above is only better embodiment of the present utility model, therefore all equivalences done according to the structure described in this utility model patent claim, feature and principle change or modify, and are all included in this utility model patent claim。

Claims

1. a Y shape lift check valve, including valve body (1), valve seat (2) and valve gap (6), described valve body (1) is provided with control end, entrance point and the port of export, the inner chamber of described control end is provided with valve seat (2), it is characterized in that: it also includes full thread stud (11), the upper surface of described valve seat (2) is fixedly installed flap (4), the sidewall of described flap (4) is provided with keyway (4-1), and this keyway (4-1) is fixedly connected by the inner chamber of dive key (3) Yu valve body (1)；The inner chamber of described flap (4) is embedded with cylindrical spring (5), the top of described cylindrical spring (5) and valve gap (6) are fixedly connected, the port of described control end is fixedly installed valve gap pretension plate (10), threadeding mutually with the screw of valve gap (6) in described full thread stud (11) one end after the through hole of valve gap pretension plate (10), described full thread stud (11) other end is threadeded mutually with nut (12)；The draw-in groove of described control end inner chamber is embedded with split fix ring (9), and split fix ring (9) is arranged between valve gap pretension plate (10) and valve gap (6)；Described control end internal chamber wall is embedded with gasket ring (7) and sealing ring (8)；Along control end axially, sealing ring (8) is arranged between gasket ring (7) and split fix ring (9)；Always seeing along the footpath controlling end, gasket ring (7), sealing ring (8) are arranged between the internal chamber wall of valve gap (6) and valve body (1)；

The seat sealing cone (2-1) of described valve seat (2) matches with the valve sealing cone (1-1) of valve body (1), and the cone angle of seat sealing cone (2-1) is 40 degree, and the cone angle of valve sealing cone (1-1) is 50 degree。

2. a kind of Y shape lift check valve according to claim 1, it is characterised in that: the bottom of described cylindrical spring (5) is embedded in the boss of valve seat (2) upper surface。

3. a kind of Y shape lift check valve according to claim 1, it is characterised in that: the center screw on described valve gap pretension plate (10) surface is threaded lifting bolt (13)。