CN102042427A - Backflushing valve - Google Patents

Abstract

The invention relates to a valve capable of back flushing and cleaning impurities in storage substances under the conditions of not dismounting a pipeline and not changing the motion direction of fluid at the inlet and the outlet of the valve. The valve comprises a valve body, a valve core, a handle, and the like, wherein the valve body is provided with four entrances, and the valve core is tightly matched with the valve body through four sealing rings. In the valve core, an arc groove is arranged at one side of a fixed valve plate, two arc grooves are arranged at one side of a movable valve plate, and the groove sides of the two valve plates are opposite. The handle is rotated to drive the movable valve plate to rotate and change the groove position of the movable valve plate so as to change the motion direction of the fluid.

Description

Back flush valves

Technical field

The present invention relates to a kind of need not dismantle pipeline and do not change the import of valve and outlet fluid motion direction, can back flush cleaning storing object in the valve of impurity.

Background technique

In filter plant, filter core is topmost parts, and after after a while, along with increasing of impurity in the filter core, filtering effect is reduced, even stop up, so filter core needs periodic replacement, increases user cost.The present invention can make prolong the working life of filter core.

Summary of the invention

The valve that the present invention is made up of valve body, spool, handle etc., valve body has a cylinder type valve core chamber, and four import and export are arranged on the valve body, is used for connecting tube, and the inner communicates with valve core chamber by four perforates.Four perforates are circle distribution, and its angle is 72 °, 72 °, 72 °, 144 °.

Spool is made up of spool drain pan, fixed valve plate, moving valve plate, compressing tablet, valve core shell and seal ring, and the spool drain pan has four holes, and perforate is circle distribution, and its angle is 72 °, 72 °, 72 °, 144 °, four seal rings adorn respectively with four holes in.Fixed valve plate is cylindrical, and four holes are arranged on it, is circle distribution, and its angle is 72 °, 72 °, 72 °, 144 °, and arc groove is arranged one, links with a hole wherein.Moving valve plate is cylindrical, with the fixed valve plate corresponding surface on have the twice arc groove, and radian equates.

Four holes on the fixed valve plate are corresponding respectively with four holes of valve body, and by four seal ring sealings.

Compressing tablet is by recessed the matching on boss and the moving valve plate.

Pressure ring is that the spool in the valve core chamber of packing into is compressed.

Handle matches with compressing tablet in the spool, and is fixed as one with clamping bolt, and the bolt outside is fastened on the handle with decorating cap.Handle with sleeve can order about moving valve plate by compressing tablet and rotate.

Description of drawings

Fig. 1 is that valve parts constitutional diagram Fig. 2 is a spool part constitutional diagram

Fig. 3 is that valve body front elevation Fig. 4 is Fig. 3 valve body A-A sectional drawing

Fig. 5 is that valve body left view Fig. 6 is Fig. 5 valve body B-B sectional drawing

Fig. 7 is that Spool assembly figure Fig. 8 is Fig. 7 spool C-C sectional drawing

Fig. 9 is that spool drain pan front elevation Figure 10 is Fig. 9 spool drain pan D-D sectional drawing

Figure 11 is that spool drain pan plan view Figure 12 is Figure 11 spool drain pan E-E sectional drawing

Figure 13 is that fixed valve plate front elevation Figure 14 is Figure 13 fixed valve plate F-F sectional drawing

Figure 15 is that fixed valve plate left view Figure 16 is Figure 15 fixed valve plate G-G sectional drawing

Figure 17 is that moving valve plate front elevation Figure 18 is Figure 17 moving valve plate H-H sectional drawing

Figure 19 is that moving valve plate plan view Figure 20 is Figure 19 moving valve plate I-I sectional drawing

Figure 21 is that compressing tablet normal axomometric drawing Figure 22 is the compressing tablet left view

Figure 23 is that compressing tablet plan view Figure 24 is Figure 23 compressing tablet J-J sectional drawing

Application schematic representation when the application schematic representation Figure 26 when Figure 25 is just opening for valve is valve closing

Application schematic representation when Figure 27 is the valve backwash

Embodiment

As shown in Figure 1, the valve formed by valve body (100), spool (200), pressure ring (300), handle (400), clamping bolt (401), decorating cap (402) etc. of the present invention.

As shown in Figure 3, Figure 4, valve body (100) has a cylinder type valve core chamber (110), at valve body (100) four import and export (101) (102) (103) (104) are arranged, the inner communicates with valve core chamber (110) by four perforates (111) (112) (113) (114) respectively.And hole (111) (112) (113) (114) is circle distribution, and the angle between the heart of hole is respectively 72 °, 72 °, 72 °, 144 °.

As shown in Figure 2, spool (200) is made up of spool drain pan (220), fixed valve plate (230), moving valve plate (240), compressing tablet (250), valve core shell (260) and four seal rings (211) (212) (213) (214).

Shown in Fig. 9,13,17,21, it is corresponding with four holes (231) (232) (233) (234) on fixed valve plate (230) that spool drain pan (220) has four holes (221) (222) (223) (224), be circle distribution, the angle between the heart of hole is respectively 72 °, 72 °, 72 °, 144 °.One side (with the moving valve plate corresponding surface) in fixed valve plate (230) has arc groove (235), links with wherein a hole (234).On the one side (with the fixed valve plate corresponding surface) of moving valve plate (240), have twice arc groove (243) (244).The radian of groove (235), (243), (244) equates.Compressing tablet (250) matches with recessed (241) (242) on the moving valve plate (240) by boss (251) (252).

Fig. 1, shown in Figure 2, in four holes (221) (222) (223) (224) of four seal rings (211) (212) (213) (214) dress and spool drain pan (220), one end contacts with fixed valve plate (230), the other end contacts with valve core chamber (110), and corresponding one by one with four perforates (111) (112) (113) (114) of valve body.

Pressure ring (300) is fixed spool (200) in valve core chamber (110).

Handle (400) is fixed as one by the compressing tablet (250) in clamping bolt (401) and the spool (200), and fastens with decorating cap (402).When handle with sleeve (400), torsion is passed to moving valve plate (240) by compressing tablet (250), drives moving valve plate (240) rotation, changes the position of groove (243) (244), to realize the change of pipeline fluid movement direction.

Below in conjunction with accompanying drawing, the work schematic representation of valve under kind of situation is given a baby a bath on the third day after its birth in positive open and close, recoil is described.

As shown in figure 25; Be the application principle floor map of valve when just opening; When valve is in " just opening " position; （243） （244）， （）： （101）--- （111）--- （211）--- （231）--- （243）--- （232）--- （212）--- （112）--- （102）--- （521）--- （501）--- （510）--- （502）--- （522）--- （104）--- （114）--- （214）--- （234）--- （244）--- （233）--- （213）--- （113）--- （103）---。

When handle (400) rotates counterclockwise 36 °, valve is in the off-position, when promptly moving valve plate groove (243) (244) is in as shown in figure 26 the position, is the valve closing state.

36 ° of of of of of counterclockwise again of When handle (400) rotates; Valve is in " backwash " position; Be that moving valve plate groove (243) (244) is when being in as shown in figure 27 the position; ， （）： （101）--- （111）--- （211）--- （231）--- （243）--- （235）--- （234）--- （214）--- （114）--- （104）--- （522）--- （502）--- （510）--- （501）--- （521）--- （102）--- （112）--- （212）--- （232）--- （244）--- （233）--- （213）--- （113）--- （103）---。

Claims (6)

1. valve of forming by valve body (100), spool (200), compressing tablet (300), handle (400) etc., it is characterized in that valve body has a cylinder type valve core chamber, four import and export (101) (102) (103) (104) are arranged on the valve body, communicate with valve core chamber (110) by four perforates (111) (112) (113) (114) respectively.Hole (111) (112) (113) (114) is circle distribution, and its angle is respectively 72 °, and 72 °, 72 °, 144 °.

2. according to claim 1, spool (200) is made up of spool drain pan (220), fixed valve plate (230), moving valve plate (240), pressure ring (250), valve core shell (260) and seal ring (211) (212) (213) (214).

3. as described in the claim 2, it is corresponding that spool drain pan (220) has four holes (231) (232) (233) (234) of opening on four holes and the fixed valve plate (230), corresponding with four perforates (101) (102) (103) (104) of valve body (100) when assembling simultaneously, and by seal ring (211) (212) (213) (214) and valve body sealing.

4. as described in the claim 2, fixed valve plate (230) is cylindrical, has one circular groove (235) on its one side, links to each other with wherein a hole (234).

5. as described in the claim 2, moving valve plate (240) is cylindrical, has twice circular groove (243) (244) on its one side.

6. as described in the claim 2, fixed valve plate (230) is a combination with moving valve plate (240), and it is relative to have a face of groove.

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