CN203335941U

CN203335941U - Multifunctional combination valve

Info

Publication number: CN203335941U
Application number: CN201320353203XU
Authority: CN
Inventors: 王汉洲; 叶建中; 邱晓来; 黄明金; 吴寿敬
Original assignee: CHAODA VALVE GROUP Co Ltd
Current assignee: CHAODA VALVE GROUP Co Ltd
Priority date: 2013-06-18
Filing date: 2013-06-18
Publication date: 2013-12-11
Anticipated expiration: 2023-06-18

Abstract

The utility model discloses a multifunctional combination valve. The multifunctional combination valve comprises a valve body, a valve seat assembly, a valve deck and a ball body assembly. The ball body assembly comprises a ball body and a valve rod in linkage match with the ball body. The valve seat assembly comprises a valve seat. The valve body is provided with a valve body flow channel and a valve cavity formed in the valve body flow channel. The ball body is arranged in the valve cavity and provided with a ball body flow channel. A check valve element assembly is arranged in the portion of one side, opposite to the ball body, of the valve body flow channel on the valve body comprises a check valve plate, and the valve body flow channel is provided with a check valve seat which is correspondingly in sealing match with the check valve plate. The multifunctional combination valve has the advantages that the structure is compact, the cutting-off function and the automatic checking function are provided, the standard structure length of a ball valve is not changed, internal parts can be disassembled on line, on-line maintenance is achieved, the influence of medium washing is avoided, the torque is low in the opening and closing processes, and friction is avoided.

Description

A kind of Multifunctional combined valve

Technical field

The utility model relates to valve field, specifically refers to a kind of Multifunctional combined valve with cut-out and non-return.

Background technique

Carry or install operating power at pipeline and all derive from pump, a safety check and a cut-off valve generally all will be installed in series after pump, two deck valve doors are installed and just installing space are proposed to higher requirement, also will be higher to installation specification, directly affected installation and normal use of valve site.

Summary of the invention

The purpose of this utility model is the shortcoming and defect existed in order to overcome prior art, and a kind of have cut-out and automatic braking function are provided, and does not change the Multifunctional combined valve of ball valve normal structure length.

For achieving the above object, the technological scheme of this valve is to include valve body, valve component, valve gap and spheroid assembly, the valve rod that this spheroid assembly includes spheroid and is linked with spheroid, described valve component includes the spheroid valve seat, be provided with valve flowing channel on described valve body and be positioned at the valve pocket on valve flowing channel, described sphere installation is in valve pocket, be provided with the spheroid runner on this spheroid, relatively in the valve flowing channel of spheroid one side, be provided with the check valve spool assembly on valve body, this mangetic core assembly includes the non-return valve block, be provided with the Boilor check valve seat that be sealed and matched corresponding to the non-return valve block on described valve flowing channel.

By this setting, under the prerequisite that does not change ball valve normal structure length, be provided with corresponding check valve spool assembly in valve flowing channel, it is had simultaneously and cut off and the automatic braking function, and overall space arranges compactness, installation footprint is little.

Further arranging is that described check valve spool assembly is the Bivalved check valve mangetic core assembly, this Bivalved check valve mangetic core assembly includes positioning plate, valve shaft and reduction torsion spring, described positioning plate is fixedly installed in the fluid valve road, valve shaft is arranged on positioning plate, described non-return valve block includes two flaps, these two flaps are relatively symmetrical and all with valve shaft, connect, the two be take valve shaft and does rotary opening and closing action as axle center, described reduction torsion spring cover is arranged on bearing pin, and two presser feets of reduction torsion spring are positioned respectively on two flaps of both sides.By this setting, a kind of Bivalved check valve mangetic core assembly structure that valve flowing channel is installed that is suitable for is provided, mechanism arranges conveniently, good stability.

This arranges described check valve spool assembly can also be butterfly shaped check valve mangetic core assembly or Swing check valve mangetic core assembly.

Further arranging is that described spheroid valve seat is single valve seat, be installed on the valve interior wall of spheroid one side, on the relative spheroid runner one side outer wall of described spheroid, projection is provided with the ring packing sphere, this ring packing sphere and the same centre of sphere of spheroid, and this ring packing sphere and spheroid valve seat are equipped with in the closed condition lower seal at ball valve, described spheroid assembly also includes lower rotary shaft, described valve rod and lower rotary shaft are arranged at respectively the upper and lower two ends of spheroid, and described valve rod and lower rotary shaft coaxially arrange, the centre of sphere of described ring packing sphere and spheroid is not on the axis of valve rod and lower rotary shaft, form eccentric setting.

By this setting, while opening valve, valve rod is rotated counterclockwise and drives spheroid moment disengaging spheroid valve seat, whole open the valve process in the spheroid sealing surface of seat without any contacting, after valve wide open, the spheroid runner is communicated with fully with valve flowing channel, and along with the aperture increase gap of valve is larger, when opening valve fully, ring packing sphere and the spheroid sealing surface of seat of spheroid have gap, but spheroid still can block whole spheroid sealing surface of seat, prevent that the spheroid valve seat from exposing fully and being washed away damage by medium, in the valve opening and closing process, moment of torsion is very low;

During throttle down, after rotation valve rod, the ring packing sphere of spheroid gradually near the spheroid valve seat until close fully.

At present, in traditional upper-mounting type ball valve, the overwhelming majority is the double-valve-seat structure, and spheroid is tightly embraced in centre by two valve seats, close contact all the time in switching process, and large, the online dismounting of moment of torsion is very difficult; And wherein the small part upper-mounting type ball valve is the single valve seat ball valve, the spheroid of its setting is hemisphere or scarce ball, and after valve open, valve seat exposes fully, and very easily by medium, is washed away damage.Therefore, adopt technique scheme, the utility model can be dismantled internals and on-line maintenance maintenance online, and not washed away by medium, has low moment of torsion, frictionless advantage.

By this setting, in dismounting during internals, whole spheroid assembly is by integral demounting, convenient disassembly, and also this arranges, and the installation of spheroid assembly is also more convenient.

Further arrange is the bottom sphere that described lower rotary shaft includes the axial sphere that is positioned at its avris section and is positioned at its bottom.By this setting, in dismounting during internals, because the lower rotary shaft of spheroid assembly is the setting of two spheres (axle center sphere and bottom sphere), so, as long as the spheroid assembly is tilted to break away from the spheroid sealing surface of seat fully slightly, dismantle very convenient.

Further arranging is that described valve component also includes valve seat insert, trim ring, trim ring Returnning spring and sand prevention ring, or described valve component includes the gasket seal that is arranged at spheroid valve seat inboard.

Further arrange is that described spheroid valve seat adopts the screw thread axis hole on spiral way and valve interior wall to form detachable screw thread secure fit.By this setting, not only facilitate the installation of spheroid valve seat, and spheroid valve seat convenient disassembly.

The bottom that further setting is the spheroid valve seat is provided with the dismounting groove.This setting, convenient adjustment and the dismounting that the ball valve seat is put.

In sum, the utlity model has compact structure, have and cut off and the automatic braking function, and do not change ball valve normal structure length, but also have, can dismantle online the maintenance of internals, on-line maintenance, be not subject to that medium washes away, low moment of torsion in switching process, without advantages such as frictions.

Below in conjunction with specification drawings and specific embodiments, the utility model is described further.

The accompanying drawing explanation

Structural drawing when Fig. 1 is the utility model embodiment closed condition;

Fig. 2 is the utility model embodiment spheroid valve seat assembly structure enlarged view;

Structural drawing when Fig. 3 is the utility model embodiment full-gear;

Fig. 4 is the utility model embodiment's spheroid assembly graphics;

Fig. 5 is that in the utility model spheroid assembly, spheroid and valve rod and lower eccentric shaft specifically arrange figure.

Embodiment

Below by embodiment, the utility model is specifically described; only for the utility model is further described; can not be interpreted as the restriction to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned model utility.

Embodiment of the present utility model as Figure 1-4, include valve body 1, valve component, valve gap 3 and spheroid assembly, the valve rod 42 that this spheroid assembly includes spheroid 41 and is linked with spheroid, the gasket seal 22 that described valve component includes spheroid valve seat 21 and is arranged at spheroid valve seat 21 inboards.

In addition, be provided with valve flowing channel 11 on the described valve body 1 of the present embodiment and be positioned at the valve pocket 12 on valve flowing channel, described spheroid 41 is installed in valve pocket 12, be provided with spheroid runner 411 on this spheroid 41, described spheroid valve seat 21 is single valve seat, be installed on the valve interior wall of spheroid 41 1 sides, on the relative spheroid runner one side outer wall of described spheroid 41, projection is provided with ring packing sphere 412, this ring packing sphere 412 and the same centre of sphere of spheroid 41, and this ring packing sphere 412 is equipped with in the closed condition lower seal at ball valve with spheroid valve seat 21, described spheroid assembly also includes lower rotary shaft 43, described valve rod 42 and lower rotary shaft 43 are arranged at respectively the upper and lower two ends of spheroid, and described valve rod 42 and lower rotary shaft 43 coaxially arrange, the centre of sphere of described ring packing sphere 412 and spheroid is not on the axis of valve rod 42 and lower rotary shaft 43, form eccentric setting, this arranges convenient online dismounting.

For the ease of dismounting, this spheroid valve seat 21 adopts the screw thread axis hole on spiral way and valve interior wall to form detachable screw thread secure fit, and the bottom of spheroid valve seat 21 is provided with dismounting groove 211.

In addition, on the present embodiment valve body 1, relatively in the valve flowing channel of spheroid one side, be provided with check valve spool assembly 5, this mangetic core assembly includes non-return valve block 51, is provided with the Boilor check valve seat that be sealed and matched 13 corresponding to the non-return valve block on described valve flowing channel.The described check valve spool assembly 5 of the present embodiment is the Bivalved check valve mangetic core assembly, this Bivalved check valve mangetic core assembly includes positioning plate 52, valve shaft 53 and reduction torsion spring 54, described positioning plate 52 is fixedly installed in fluid valve road 11, valve shaft 53 is arranged on positioning plate 52, described non-return valve block 51 includes two flaps 511, these two flaps 511 are relatively symmetrical and all with valve shaft, connect, the two be take valve shaft 53 and does rotary opening and closing action as axle center, described reduction torsion spring 54 covers are arranged on bearing pin 53, two presser feets of reduction torsion spring 54 are positioned respectively on two flaps 511 of both sides.

Certainly, check valve spool assembly 5 described in the utility model can also be common be butterfly shaped check valve mangetic core assembly or Swing check valve mangetic core assembly.

The normal flow direction of combination brake switch and proporting of the present utility model is spheroid 41 toward check valve mangetic core assemblies 5, and the non-return direction of this check valve spool assembly 5 is valve body lateral valve flowing channel non-return, to prevent medium, flows backwards, as shown in Fig. 3 arrow.Certainly for other, need, such as prevent in combination brake switch and proporting medium blow back into the pipeline be connected in, the non-return direction of this check valve spool assembly 5 can be done contrary setting.

In addition, the bottom sphere 432 that the described lower rotary shaft 43 of the present embodiment includes the axial sphere 431 that is positioned at its avris section and is positioned at its bottom.

Claims

1. a Multifunctional combined valve, include valve body, valve component, valve gap and spheroid assembly, the valve rod that this spheroid assembly includes spheroid and is linked with spheroid, described valve component includes the spheroid valve seat, be provided with valve flowing channel on described valve body and be positioned at the valve pocket on valve flowing channel, described sphere installation is in valve pocket, be provided with the spheroid runner on this spheroid, it is characterized in that: on valve body, relatively in the valve flowing channel of spheroid one side, be provided with the check valve spool assembly, this mangetic core assembly includes the non-return valve block, be provided with the Boilor check valve seat that be sealed and matched corresponding to the non-return valve block on described valve flowing channel.

2. a kind of Multifunctional combined valve according to claim 1, it is characterized in that: described check valve spool assembly is the Bivalved check valve mangetic core assembly, this Bivalved check valve mangetic core assembly includes positioning plate, valve shaft and reduction torsion spring, described positioning plate is fixedly installed in the fluid valve road, valve shaft is arranged on positioning plate, described non-return valve block includes two flaps, these two flaps are relatively symmetrical and all with valve shaft, connect, the two be take valve shaft and does rotary opening and closing action as axle center, described reduction torsion spring cover is arranged on bearing pin, two presser feets of reduction torsion spring are positioned respectively on two flaps of both sides.

3. a kind of Multifunctional combined valve according to claim 1, it is characterized in that: described check valve spool assembly is butterfly shaped check valve mangetic core assembly or Swing check valve mangetic core assembly.

4. according to the described a kind of Multifunctional combined valve of one of claim 1-3, it is characterized in that: described spheroid valve seat is single valve seat, be installed on the valve interior wall of spheroid one side, on the relative spheroid runner one side outer wall of described spheroid, projection is provided with the ring packing sphere, this ring packing sphere and the same centre of sphere of spheroid, and this ring packing sphere and spheroid valve seat are equipped with in the closed condition lower seal at ball valve, described spheroid assembly also includes lower rotary shaft, described valve rod and lower rotary shaft are arranged at respectively the upper and lower two ends of spheroid, and described valve rod and lower rotary shaft coaxially arrange, the centre of sphere of described ring packing sphere and spheroid is not on the axis of valve rod and lower rotary shaft, form eccentric setting.

5. a kind of Multifunctional combined valve according to claim 4, is characterized in that: the bottom sphere that described lower rotary shaft includes the axial sphere that is positioned at its avris section and is positioned at its bottom.

6. a kind of Multifunctional combined valve according to claim 4, it is characterized in that: described valve component also includes valve seat insert, trim ring, trim ring Returnning spring and sand prevention ring, or described valve component includes the gasket seal that is arranged at spheroid valve seat inboard.

7. a kind of Multifunctional combined valve according to claim 4 is characterized in that: described spheroid valve seat adopts the screw thread axis hole on spiral way and valve interior wall to form detachable screw thread secure fit.

8. a kind of Multifunctional combined valve according to claim 4, it is characterized in that: the bottom of spheroid valve seat is provided with the dismounting groove.