CN208535211U

CN208535211U - Ductile cast iron valve

Info

Publication number: CN208535211U
Application number: CN201820373759.8U
Authority: CN
Inventors: 吴展益; 景海鸥
Original assignee: Ruian Nanxing Machinery Co Ltd
Current assignee: Ruian Nanxing Machinery Co Ltd
Priority date: 2018-03-20
Filing date: 2018-03-20
Publication date: 2019-02-22
Anticipated expiration: 2028-03-20

Abstract

The utility model discloses a kind of ductile cast iron valves, including valve body, spool and valve rod, valve body is equipped with water inlet and water outlet, and water inlet two sides are equipped with buffer part, the arc-shaped shape setting of buffer part, valve seat is equipped between water inlet and water outlet, spherical spool is equipped in valve seat, spherical spool includes three sections of dividing bodies, is equipped with two layers of filter screen between three sections of dividing bodies, valve rod is fixedly connected on the dividing body of middle section, valve rod and valve seal are arranged.The design that the utility model passes through buffer part, reduce fluid to the impact at valve body import, it avoids valve body import end coating from being washed to which bring is damaged, by the design of two layers of filter screen, realizes secondary filtration, it is efficient to remove impurity in fluid, abrasion and impact that valve body is subject to are reduced, extends the valve body service life, finally by the lock core and bushing being connected on valve rod, ensure that valve rod will not rotate easily, ensure that valve body using safe.

Description

Ductile cast iron valve

Technical field

The utility model relates to valve technology field more particularly to a kind of ductile cast iron valves.

Background technique

Valve is the control unit in fluid treehole system, has cut-off, adjusting, water conservancy diversion, prevents adverse current, pressure stabilizing, shunting Or the functions such as overflow pressure relief.Existing valve in use, due to fluid by valve inlet end have souring, Under long term, valve inlet coating is caused to be washed, and then valve body is caused to damage, and existing valve pipe road is too long, Impurity can not exclude completely, and impurity flows into valve body and is easy to damage sealing surface, during valve body switch, close in valve body half-open half When state, water flow rapidly increases pressure, wears valve body, or even cause to reveal, in addition, there is no limit hold existing valve rod It easily rotates, causes valve body to use dangerous.

Utility model content

For the deficiency of above content, the utility model provide it is a kind of can effective impurity screening, reduce valve body wear, valve The ductile cast iron valve that bar will not be rotated arbitrarily and the service life is long.

To realize said effect, the utility model uses following scheme:

A kind of ductile cast iron valve, including valve body, spool and valve rod, it is characterised in that: the valve body be equipped with water inlet and Water outlet, the water inlet two sides are equipped with buffer part, the arc-shaped shape setting of buffer part, and the buffer part is equipped with buffering Block, the buffer stopper are arranged in circular arc state, are provided with spring between the buffer stopper and buffer part.

Further, the buffer part is equipped with the jack installed for spring.

Further, the buffer part both ends offer slot, and the both ends of the buffer stopper are respectively embedded into two end slots It is interior.

Further, the slot is set in buffer stopper end two sides there are two convex block, and the convex block is arranged in circular arc state, The side underbump is equipped with groove.

Using the above scheme, when fluid enters in valve body, segment fluid flow is impacted on buffer stopper, and impact passes through slow herein Block, spring elimination are rushed, another part fluid is acted on by groove and generates reaction force, the bubble that reaction force will contain in fluid It breaks up, reduces corrosive gas damage caused by valve body that bubble has, increase valve body service life, convex block is set to buffering Block end two sides act on to clamp buffer stopper in slot, preventing buffer stopper to be detached from and slot while also enhancing sealing effect, subtract Damage of the small fluid to spring.

Further, it is equipped with valve seat between the water inlet and water outlet, spherical spool is equipped in the valve seat, it is described Spherical spool includes three sections of dividing bodies, is equipped with two layers of filter screen between three sections of dividing bodies.

Further, the divisional plane of the dividing body is perpendicular to inner passage axis.

Further, two layers of filter screen includes close to the first filter screen of inlet end and close to water outlet end second Filter screen, the mesh aperture of first filter screen are greater than the mesh aperture of the second filter screen.

Further, the valve seat is fixedly connected with the valve body by dismountable banking pin.

Using the above scheme, the design of two layers of filter screen plays the effect of double-filtration, and first layer filter screen aperture is greater than Second layer filter screen aperture effectively removes impurities in water so that filter effect reaches more preferably, and in this scheme, filter screen is not using Become rusty Steel material, it is ensured that the sealing effect of valve body, valve seat are removably designed with valve body, change the rotatable angle model of valve body It encloses, is conducive to remove the impurity filtered out.

Further, valve rod is fixedly connected on the middle section dividing body, the valve rod and valve seal are arranged, described Valve rod upper end is connected with lockset, and the lockset includes the lock tube for blocking valve rod, the lock fixed in the lock tube equipped with screw and valve rod The middle part of core, the lock core is equipped with lockhole.

Further, it is equipped with bushing between the outer end and lock tube of the lock core, is equipped with depth in the middle part of the outer end of the bushing Greater than the through-hole of lockhole.

Using the above scheme, valve rod is connected in the middle part of three sections of dividing bodies one section, is consolidated lock core by the cooperation of screw and valve rod Fixed connection, lock core middle part are equipped with lockhole, and tool only compatible with lockhole can just be operated, so that valve rod will not arbitrarily turn It is dynamic, it is ensured that the safety of valve rod is also connected with bushing in this scheme outside lock core, is equipped with through-hole in bushing, is greater than by depth The design of lockhole more ensures the safety used so that simple tool is difficult to stress.

The beneficial effects of the utility model are: reducing fluid by the design of buffer part to the impact at valve body import, keeping away Exempt from valve body import end coating to be washed to which bring is damaged, by the design of two layers of filter screen, realizes secondary filtration, efficiently Impurity in fluid is removed, abrasion and impact that valve body is subject to are reduced, extends the valve body service life, finally by the lock core being connected on valve rod And bushing, ensure that valve rod will not rotate easily, ensure that valve body using safe.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is buffer part structural schematic diagram.

Fig. 3 is valve rod connection schematic diagram.

Specific embodiment

For the contents, features and effects that can further appreciate that the utility model, it is listed below embodiment, and cooperates attached drawing detailed Carefully it is described as follows.

As shown in Figure 1, 2, a kind of ductile cast iron valve, including valve body 1, spool 2 and valve rod 3, valve body 1 are equipped with water inlet 4 And water outlet 5,4 two sides of water inlet are equipped with buffer part 6, the setting of the arc-shaped shape of buffer part 6, buffer part is equipped with buffer stopper 61, Buffer stopper 61 is arranged in circular arc state, and 6 both ends of buffer part offer slot 62, and buffer stopper 61 connects by the way that slot 62 and valve body are fixed It connects, slot 62 is respectively provided with two arc-shaped convex blocks 63 in 61 end two sides of buffer stopper, and groove is equipped with below the convex block 63 of side 64, spring 65 is additionally provided between buffer stopper 61 and buffer part 6, buffer part 6 is equipped with the jack installed for spring 65.This design work Make principle are as follows: when fluid flows into valve body 1, buffer part 6 passes through the collective effect of buffer stopper 61, spring 65, groove 64, to impact force There is a good buffering effect, while reducing the abrasion and corrosion of valve body 1, extends 1 service life of valve body, the use of convex block 63 It is then to enhance sealing effect.

Further, it is equipped with valve seat between water inlet 4 and water outlet 5, spherical spool, spherical spool packet are equipped in valve Include three sections of dividing bodies, the divisional plane of dividing body is equipped with two layers of filter screen, tool between three sections of dividing bodies perpendicular to inner passage axis Body, two layers of filter screen includes the first filter screen 41 and close 5 the second filter screen of end 42 of water outlet close to 4 end of water inlet, the The mesh aperture of one filter screen 41 is greater than the mesh aperture of the second filter screen 42.

Preferably, valve seat is fixedly connected by dismountable banking pin with valve body 1.

In this design, the design of two layers of filter screen plays the effect of double-filtration, the difference of two layers of filter screen mesh size Filter effect is more improved, impurities in water is more effectively removed, valve seat is removably designed with valve body, and it is rotatable to change valve body Angular range is conducive to remove the impurity filtered out.

As shown in figure 3, it is further, valve rod 3, valve rod 3 are fixedly connected on the middle section dividing body 51 of three sections of dividing bodies With 1 sealed set of valve body, 3 upper end of valve rod is connected with lockset, and lockset includes the lock tube 52 for blocking valve rod 3, is equipped with screw in lock tube 52 The middle part of 53 lock cores 54 fixed with valve rod 3, lock core 54 is equipped with lockhole 55, and bushing is equipped between the outer end and lock tube 52 of lock core 54 56, the outer end middle part of bushing 56 is equipped with the through-hole 57 that depth is greater than lockhole 55.In this scheme, the cooperation of screw 53 and valve rod 3 will Lock core 54 is fixedly connected, and lockhole 55 is equipped in the middle part of lock core 54, and tool only compatible with lockhole 55 can just be operated, so that Valve rod 3 will not be rotated arbitrarily, it is ensured that the safety of valve rod 3 is also connected with bushing 56 in this scheme outside lock core 54, sets in bushing The through-hole 57 for having depth to be greater than lockhole 55 more ensures the safety used so that simple tool is difficult to stress.

The thing finally illustrated: being the preferred embodiment that embodiment is only the utility model above, rather than its limitations；Although The utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: its according to It is so possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution Range.

Claims

1. a kind of ductile cast iron valve, including valve body, spool and valve rod, it is characterised in that: the valve body is equipped with water inlet and goes out The mouth of a river, the water inlet two sides are equipped with buffer part, the arc-shaped shape setting of buffer part, between the water inlet and water outlet Spherical spool is equipped with equipped with valve seat, in the valve seat, the sphere shape spool includes dividing along perpendicular to inner passage axis Three sections of dividing bodies, two layers of filter screen, the middle section being located among three sections of dividing bodies point are equipped between three sections of dividing bodies It cuts and is fixedly connected with valve rod on body, the valve rod and valve seal are arranged, and the valve rod upper end is connected with lockset, and the lockset includes The lock tube of valve rod is blocked, the lock core fixed in the lock tube equipped with screw and valve rod, the middle part of the lock core is equipped with lockhole.

2. a kind of ductile cast iron valve according to claim 1, it is characterised in that: between the outer end and lock tube of the lock core The through-hole that depth is greater than lockhole is equipped with equipped with bushing, in the middle part of the outer end of the bushing.

3. a kind of ductile cast iron valve according to claim 1, it is characterised in that: the buffer part is equipped with buffer stopper, The buffer stopper is arranged in circular arc state, is provided with spring between the buffer stopper and buffer part.

4. a kind of ductile cast iron valve according to claim 3, the buffer part both ends offer slot, the buffering The both ends of block are respectively embedded into two end slots.

5. a kind of ductile cast iron valve according to claim 4, it is characterised in that: the slot is in buffer stopper end two sides If the convex block is arranged in circular arc state there are two convex block, the side underbump is equipped with groove.

6. a kind of ductile cast iron valve according to claim 1, it is characterised in that: the buffer part is equipped with to be installed for spring Jack.

7. a kind of ductile cast iron valve according to claim 1, it is characterised in that: the divisional plane of the dividing body perpendicular to Inner passage axis.

8. a kind of ductile cast iron valve according to claim 1, it is characterised in that: two layers of filter screen include close into First filter screen at mouth of a river end and close the second filter screen of water outlet end, the mesh aperture of first filter screen are greater than the second mistake The mesh aperture of strainer.

9. according to claim 1 to a kind of ductile cast iron valve described in any one in 8, it is characterised in that: the valve seat is logical Dismountable banking pin is crossed to be fixedly connected with the valve body.