CN210687024U - Take filtering capability's butterfly valve - Google Patents

Abstract

The utility model relates to a take filtering capability's butterfly valve, including valve body, disk seat, butterfly plate and valve rod, the disk seat the butterfly plate is connected, the disk seat external diameter with valve body internal diameter interference fit, the valve body be equipped with the hole is opened and close in the valve rod complex, the valve rod with the butterfly plate linkage sets up, still including filtering the lid, filter the lid with the valve body is connected, it is equipped with a plurality of filtration pores to filter the lid terminal surface, filter the distance of pore to valve rod pivot and be greater than the radius of butterfly plate. The utility model provides a can reduce the butterfly valve of taking filtering capability of the wearing and tearing that the disk seat caused when the medium passes with the large granule impurity in the filter medium.

Description

Take filtering capability's butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field, specific theory relates to a take filtering capability's butterfly valve.

Background

The butterfly valve is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media. The ventilation butterfly valve is applied to dust-containing cold air or hot air gas pipelines of ventilation and environmental protection projects in the industries of chemical engineering, building materials, power stations, glass and the like, and is used as a pipeline control device for regulating the flow or cutting off a gas medium. The valve of this type should be generally installed horizontally in the pipeline. The ventilating butterfly valve is a non-closed butterfly valve, and is widely applied to various pipelines in the production processes of building materials, metallurgy, mines, electric power and the like, and is used for communicating, opening and closing or adjusting the quantity of media. The novel structure is designed and manufactured by adopting a novel structure form of welding a central line type disc plate and a short structure steel plate, has compact structure, light weight, convenient installation, small flow resistance and large circulation, avoids the influence of high-temperature expansion, is light and convenient to operate, has no connecting rod, bolt and the like in the structure, works reliably and has long service life. Can be installed in multiple stations without being influenced by the flow direction of the medium.

But the disk seat can expose outside when the butterfly valve structure reason butterfly valve is opened, just can continuously receive the washing away of medium in the pipeline, just can make the disk seat wearing and tearing if there is large granule impurity in the medium, the disk seat just can reduce after wearing and tearing, can't accomplish even sealed, so just will change the disk seat or change the butterfly valve, very troublesome.

SUMMERY OF THE UTILITY MODEL

To sum up, for overcoming prior art's not enough, the utility model provides a can reduce the butterfly valve of taking filtering capability of the wearing and tearing that the disk seat caused when the medium passes with the large granule impurity in the filter medium.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a take filtering capability's butterfly valve, includes valve body, disk seat, butterfly plate and valve rod, the disk seat the butterfly plate is connected, the disk seat external diameter with valve body internal diameter interference fit, the valve body be equipped with the hole is opened and close in the valve rod complex, the valve rod with the butterfly plate linkage sets up, still including filtering the lid, filter the lid with the valve body is connected, it is equipped with a plurality of filtration pores to filter the lid terminal surface, it is greater than to filter the distance of pore to valve rod pivot the radius of butterfly plate.

So set up, the valve rod is rotatory to be driven and is rotated rather than the butterfly plate of linkage together, the disk seat of being connected with the butterfly plate leaves the valve body, the medium passes from the butterfly plate both sides, and the medium that passes through the butterfly plate has first passed through the filter lid of being connected with the valve body before reaching the butterfly plate, the medium passes through the filter lid from the filtration hole that filters on covering, wherein the impurity that the biggest cross-section is greater than the filtration hole is blocked outside filtering the hole completely, can't pass and filter the lid, only have the granule that the biggest cross-section is less than the filtration hole in the medium that passes through the filter lid, the wearing and tearing that cause when the medium passes have been reduced to the disk.

Further, the filtering cover comprises a filtering pipeline and a net cover, the filtering holes are formed in the net cover, the filtering pipeline is connected with the net cover, and the filtering pipeline is connected with the valve body.

So set up, filter the lid and need not to change whole filter cover after long-term by the large granule erodees wearing and tearing for a long time, only need change the screen cover can.

Further, still including adjusting the lid and adjusting the pole, a filtering conduit side end face is equipped with the recess, the recess is straight notch, the recess diameter with adjust the lid cooperation, it is equipped with a plurality of adjustment tanks to adjust the lid, adjustment tank quantity with filter hole quantity cooperation, the adjustment tank width with filter hole cooperation, the recess outer wall is equipped with the regulation mouth that runs through filtering conduit, the regulation mouth is equipped with the internal thread, adjust the pole and be equipped with the external screw thread with interior screw-thread fit, it is equipped with the ring channel to adjust the pole, the ring channel is equipped with the sealing washer, adjust the pole with adjust the lid linkage setting.

So set up, the rotation regulation pole, it just can reciprocate in adjusting the mouth just to adjust the pole, follow and reciprocate together with the regulation lid that sets up of linking, and the medium that gets into the regulation mouth then can be blockked by the sealing washer, can not flow, the adjustment tank just aligns with the filtration pore when adjusting the lid and being located the recess minimum, all filtration pores all are in the state of leading to entirely, when adjusting the lid along with adjusting the pole and rise, it is downthehole that the part that does not have the adjustment tank gets into the filtration to adjust to cover, it is littleer to filter the granule that the pore area diminishes can pass through, the position of adjusting the lid is higher, the area of filtering the pore is littleer, the granule that can pass through is just also littleer, the medium after the filtration just is.

Further, the distance between the centers of the grooves is smaller than the vertical height of the single filter hole.

So set up, even adjust the lid and be located the highest position, filter the hole and also can not blocked by adjusting the lid completely, still can pass through by the medium, can not appear closing completely and lead to the medium to be adjusted lid and screen cover and block unable outflow to constantly exert the condition that effort leads to adjusting lid and screen cover to damage to adjusting lid and screen cover.

Further, the adjusting opening is arranged above the filtering pipeline.

So set up, the medium because gravity reason, the power of flow direction regulation mouth can be less than the condition of setting in the filter tube below, has reduced the possibility that the filtration pore was revealed.

Drawings

Fig. 1 is a left side half-sectional view of the embodiment of the present invention.

Fig. 2 is a front partial sectional view of an embodiment of the present invention.

Fig. 3 is a sectional view taken along the plane a-a of fig. 2.

Fig. 4 is an enlarged view of a portion B of fig. 2.

Fig. 5 is an exploded view of the filter cover according to the embodiment of the present invention.

The reference numbers in the figures mean: 1. the novel butterfly valve comprises a valve body, 101 opening and closing holes, 2 valve seats, 3 butterfly plates, 4 valve rods, 5 filter covers, 501 filter pipelines, 5011 adjusting ports, 50111 internal threads, 5012 adjusting rods, 50121 annular grooves, 50122 sealing rings, 50123 external threads, 5013 grooves, 502 screen covers, 5021 filter holes, 6 adjusting covers and 601 adjusting grooves.

Detailed Description

The present embodiment is only an explanation of the present embodiment, and it is not a limitation of the present embodiment, and a person skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present embodiment.

Referring to the attached drawings, the utility model provides the following technical scheme: the utility model provides a take filtering capability's butterfly valve, includes valve body 1, disk seat 2, butterfly plate 3 and valve rod 4, disk seat 2 butterfly plate 3 is connected, 2 external diameters of disk seat with 1 internal diameter interference fit of valve body, valve body 1 be equipped with the hole 101 is closed in 4 complexs of valve rod complex opening, valve rod 4 with 3 linkage settings of butterfly plate still include filter lid 5, filter lid 5 with valve body 1 is connected, filter lid 5 terminal surfaces is equipped with a plurality of filtration holes 5021, the distance of filtering the hole to 4 pivots of valve rod is greater than the radius of butterfly plate 3.

So set up, the rotatory butterfly plate 3 that drives rather than the linkage of valve rod 4 rotates together, disk seat 2 connected with butterfly plate 3 leaves valve body 1, the medium passes from butterfly plate 3 both sides, and the medium that passes through butterfly plate 3 has passed through the filter lid 5 of being connected with valve body 1 earlier before reaching butterfly plate 3, the medium passes through filter lid 5 from filtering hole 5021 on the filter lid 5, wherein the impurity that the biggest cross-section is greater than filter hole 5021 is blocked outside filtering the hole completely, can't pass filter lid 5, only have the granule that the biggest cross-section is less than filter hole 5021 in the medium of passing filter lid 5, the wearing and tearing that the disk seat 2 caused when the medium passes have been reduced, the life of butterfly valve has been prolonged.

Further, the filter cover 5 comprises a filter pipeline 501 and a mesh cover 502, the filter holes are formed in the mesh cover 502, the filter pipeline 501 is connected with the mesh cover 502, and the filter pipeline 501 is connected with the valve body 1.

So set up, filter lid 5 need not to change whole filter lid 5 after being washed out the wearing and tearing for a long time by the large granule for a long time, only need change the screen cover 502 can.

Further, still include adjusting lid 6 and adjusting pole 5012, filtering conduit 501 a side end face is equipped with recess 5013, recess 5013 is the straight notch, recess 5013 diameter with adjust lid 6 cooperation, it is equipped with a plurality of adjustment tank 601 to adjust lid 6, adjustment tank 601 quantity with filter 5021 quantity cooperation, adjustment tank 601 width with filter 5021 cooperation, recess 5013 outer wall is equipped with the regulation mouth 5011 that runs through filtering conduit 501, regulation mouth 5011 is equipped with internal thread 50111, adjust pole 5012 be equipped with internal thread 50111 complex external screw thread 50123, it is equipped with ring channel 50121 to adjust pole 5012, ring channel 50121 is equipped with sealing washer 50122, adjust pole 5012 with adjusting lid 6 linkage sets up.

With the arrangement, the adjusting rod 5012 is rotated, the adjusting rod 5012 moves up and down in the adjusting port 5011, the adjusting cover 6 which is linked with the adjusting rod moves up and down together, the medium entering the adjusting port 5011 is blocked by the sealing ring 50122 and does not flow out, when the adjusting cover 6 is located at the lowest point of the groove 5013, the adjusting groove 601 is just aligned with the filtering holes 5021, all the filtering holes 5021 are in a full-through state, when the adjusting cover 6 rises along with the adjusting rod 5012, the part of the adjusting cover 6 without the adjusting groove 601 enters the filtering holes 5021, the area of the filtering holes 5021 is smaller, the passing particles are smaller, the higher the position of the adjusting cover 6 is, the smaller the area of the filtering holes 5021 is, the passing particles are smaller, the abrasion of the filtered medium to the valve seat 2 through the butterfly plate 3 is smaller, and the service life of the butterfly valve is further prolonged.

Further, the distance between the centers of the grooves 5013 is smaller than the vertical height of the single filter hole 5021.

So set up, even adjust lid 6 and be located the highest position, filter hole 5021 also can not be blocked by adjusting lid 6 completely, still can be passed through by the medium, can not appear closing completely and lead to the medium to be blockked by adjusting lid 6 and wire mesh cover 502 and can't flow to constantly exert the condition that the effort leads to adjusting lid 6 and wire mesh cover 502 to damage to adjusting lid 6 and wire mesh cover 502.

Further, the adjustment orifice 5011 is disposed above the filter conduit 501.

So arranged, the medium will flow to the adjustment orifice 5011 less force due to gravity than the situation under the filter pipe 501, reducing the possibility of leakage from the filter orifice 5021.

Although 1, valve body, 101, opening and closing hole, 2, valve seat, 3, butterfly plate, 4, valve stem, 5, filter cap, 501, filter pipe, 5011, adjustment port, 50111, internal thread, 5012, adjustment stem, 50121, annular groove, 50122, seal ring, 50123, external thread, 5013, groove, 502, mesh cap, 5021, filter hole, 6, adjustment cap, 601, adjustment groove are used more frequently, these terms are used only for convenience of describing and explaining the essence of the present embodiment, and they are interpreted as any additional limitations contrary to the spirit of the present embodiment.

Claims (5)

1. The utility model provides a take filtering capability's butterfly valve, includes valve body, disk seat, butterfly plate and valve rod, the disk seat the butterfly plate is connected, the disk seat external diameter with valve body internal diameter interference fit, the valve body be equipped with the hole is opened and close in the valve rod complex, the valve rod with the butterfly plate linkage sets up its characterized in that: the butterfly valve is characterized by further comprising a filtering cover, the filtering cover is connected with the valve body, a plurality of filtering holes are formed in the end face of the filtering cover, and the distance from each filtering hole to the valve rod rotating shaft is larger than the radius of the butterfly plate.

2. The butterfly valve with the filtering function according to claim 1, wherein: the filter cover comprises a filter pipeline and a net cover, the filter holes are formed in the net cover, the filter pipeline is connected with the net cover, and the filter pipeline is connected with the valve body.

3. The butterfly valve with the filtering function according to claim 2, wherein: still including adjusting the lid and adjusting the pole, a filtering conduit side end face is equipped with the recess, the recess is straight notch, the recess diameter with adjust the lid cooperation, it is equipped with a plurality of adjustment tanks to adjust the lid, adjustment tank quantity with filter hole quantity cooperation, the adjustment tank width with filter hole cooperation, the recess outer wall is equipped with the regulation mouth that runs through filtering conduit, the regulation mouth is equipped with the internal thread, adjust the pole be equipped with interior screw-thread fit's external screw thread, it is equipped with the ring channel to adjust the pole, the ring channel is equipped with the sealing washer, adjust the pole with adjust the lid linkage setting.

4. The butterfly valve with the filtering function according to claim 3, wherein: the distance between the centers of the grooves is smaller than the vertical height of the single filter hole.

5. The butterfly valve with the filtering function according to claim 3, wherein: the adjusting port is arranged above the filtering pipeline.

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