CN207762286U - Detachable pressure ball valve - Google Patents

Abstract

The utility model discloses a kind of detachable pressure ball valves, including valve body, valve seat, spool sphere and the valve rod being connected with spool, the valve seat includes liquid feeding side valve seat and tapping side valve seat, release protrusion is equipped on the tapping side valve seat, the release protrusion protrudes from valve body fluid hole, and the release protrusion is adjacent with liquid-passing hole outlet end in the spool sphere under closed state, release protrusion inner surface is spherical surface, the spherical surface is in the spool sphere bearing surface on tapping side valve seat on same spherical surface, several release through-holes are provided on release protrusion, the release through-hole leads to valve body fluid hole；It is provided with positioning apparatus for circumferential direction between the valve rod and valve body.Using the detachable pressure ball valve of the utility model, it can mitigate the compression shock to ball valve outlet end in ball valve opening process.

Description

Detachable pressure ball valve

Technical field

The utility model is related to a kind of valve more particularly to a kind of improvement of ball valve.

Background technology

Ball valve is mainly used to do cut-out in pipeline or opens the flowing of medium, it only need with the operation being rotated by 90 ° and The rotating torque of very little can close tightly, simple in structure, compact, sealed reliable, easy to maintenance, be obtained in each row kind industry It is extensive to use.Since ball valve reaches maximum stream flow and only needs to be rotated by 90 ° from off state to fully opening, open and close Rapidly, to the resistance of flow also very little, this also brings a problem to process, and when ball valve is in pressure duct, ball valve is opened The high pressure opened in rear inlet end pipe road will be transmitted in the pipeline of outlet end rapidly, can be generated to outlet end pipeline apparent Impact, in certain specific occasions, such compression shock does not allow.

Utility model content

For the above-mentioned deficiency present in the prior art, the technical problem to be solved by the utility model is to provide one kind can Release ball valve, it can mitigate the compression shock to ball valve outlet end in ball valve opening process.

In order to solve the above-mentioned technical problem, a kind of detachable pressure ball valve of the utility model, including valve body, valve seat, valve ball Body and the valve rod being connected with spool, the valve seat includes liquid feeding side valve seat and tapping side valve seat, is set on the tapping side valve seat There is release protrusion, which protrudes from valve body fluid hole, and the release protrusion and the spool under closed state Liquid-passing hole outlet end is adjacent in sphere, and release protrusion inner surface is spherical surface, the spherical surface and the valve ball on tapping side valve seat Body bearing surface is on same spherical surface, and several release through-holes are provided on release protrusion, the release through-hole and valve body fluid hole Lead to；It is provided with positioning apparatus for circumferential direction between the valve rod and valve body.

In said structure, since the valve seat includes liquid feeding side valve seat and tapping side valve seat, in the tapping side valve seat It is equipped with release protrusion, which protrudes from valve body fluid hole, and under the release protrusion and closed state Liquid-passing hole outlet end is adjacent in spool sphere, and release protrusion inner surface is spherical surface, the spherical surface and the valve on tapping side valve seat Core sphere supports face is on same spherical surface, then as the spool sphere bearing surface on tapping side valve seat, is set to tapping side Sealing relationship is still kept between release protrusion on valve seat and spool sphere, in ball valve opening process, when in spool sphere When the input port of liquid-passing hole is led to ball valve inlet, due to release between the liquid-passing hole and the liquid outlet of ball valve in spool sphere The sealing function of protrusion and cannot temporarily lead to；Again due to being provided with several release through-holes on release protrusion, the release is logical Hole is led to valve body fluid hole, then in ball valve opening process release protrusion make the liquid outlet of spool sphere and ball valve still in When sealing state, the liquid-passing hole in spool sphere will be led to by the liquid outlet of release through-hole and ball valve, and the number of release through-hole Amount is limited with aperture, and the release through-hole in these limited quantities and aperture can only make the liquid stream at minimal amount of ball valve inlet end Into outlet end, the high pressure in inlet end pipe road will not be made to be transmitted in the pipeline of outlet end rapidly, thus can played One apparent release effect, will not generate apparent hydraulic shock, so as in ball valve opening process to outlet end pipeline Mitigate the compression shock to ball valve outlet end；Due also to being provided with positioning apparatus for circumferential direction between the valve rod and valve body, then Set positioning apparatus for circumferential direction can ensure that ball valve in opening process gradually open by fixed point, to ensure in release late gate It is just fully open, avoid the generation of ball valve outlet end compression shock.

A kind of preferred embodiment of the utility model, several release arrays of openings are each in same row at several rows The line of centres of release through-hole is a curve, which corresponds to the intersection of liquid-passing hole and release protrusion inner surface.It adopts With the embodiment, the release through-hole of participation release can be made in a row to increase in an orderly manner, convenient for improving release effect.

Another preferred embodiment of the utility model, the release through-hole are parallel to valve body fluid hole.Using the reality Mode is applied, release through-hole is vertical with tapping side valve seat, can be convenient for the manufacture of tapping side valve seat.

The cross section profile of another preferred embodiment of the utility model, release protrusion protrusion part is song Line, the curve correspond to the intersection of liquid-passing hole and release protrusion inner surface.Using the embodiment, release can be made to protrude Have between portion and spool sphere liquid-passing hole and explicitly contact and be detached from boundary position, needed for being rapidly reached after ball valve release Through-flow flow.

The utility model further preferred embodiment, the positioning apparatus for circumferential direction between the valve rod and valve body include peace Location hole on the positioning ball and valve rod in valve body in valve rod hole wall, positions and is equipped with spring, location hole between ball and valve body Position with positioning the position of ball it is corresponding.Using the embodiment, location structure is simple, can guarantee using effect.

Another further preferred embodiment of the utility model, the location hole along valve rod circumferential array, location hole Quantity is corresponding with the number of rows of release through-hole.Using the embodiment, can make stress-relief process in ball valve opening process gradually into Row, ensure outlet end mouth pressure it is steady promoted, flow is gradually increased.

Description of the drawings

The detachable pressure ball valve of the utility model is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is a kind of structural schematic diagram of specific implementation mode of the detachable pressure ball valve of the utility model；

Fig. 2 is the sectional view at the positions A-A in structure shown in Fig. 1；

Fig. 3 is schematic diagram of the structure shown in Fig. 2 in semi-open state；

Fig. 4 is the enlarged structure schematic diagram at release protrusion position in structure shown in Fig. 2；

Fig. 5 is the enlarged structure schematic diagram at positioning apparatus for circumferential direction position in structure shown in Fig. 1.

In figure：1- valve bodies, 2- spools sphere, 3- liquid feeding sides valve seat, 4- liquid-passing holes, 5- valve rods, 6- positioning apparatus for circumferential direction, 61- location holes, 62- positioning ball, 63- springs, 7- tapping sides valve seat, 8- releases protrusion, 9- release through-holes.

Specific implementation mode

In Fig. 1 and detachable pressure ball valve shown in Fig. 2, spool sphere 2 passes through liquid feeding side valve seat 3 and tapping side valve seat 7 It holds on valve body 1, liquid-passing hole 4 is equipped on spool sphere 2, spool sphere 2 with it by being connected and perpendicular to the valve of liquid-passing hole 4 Bar 5 is driven by handwheel and is rotated in the range of 90 degree, to realize the keying of ball valve, when spool sphere 2 turns to liquid-passing hole 4 and valve When the inlet and parallel liquid outlet of body 1, ball valve is in full open state.Referring to Fig. 4, it is equipped on the tapping side valve seat 7 Release protrusion 8, the release protrusion 8 protrude from 1 fluid hole of valve body, and the release protrusion 8 and the valve under closed state 4 outlet end of liquid-passing hole is adjacent in core sphere 2, and 8 inner surface of release protrusion is spherical surface, on the spherical surface and tapping side valve seat 7 Spool sphere bearing surface is on same spherical surface, and the cross section profile that release protrusion 8 protrudes part is curve, which corresponds to The intersection of liquid-passing hole 4 and 8 inner surface of release protrusion；Several release through-holes 9, the release are provided on release protrusion 8 Through-hole 9 and 1 fluid hole of valve body lead to and are parallel to 1 fluid hole of valve body, and several release through-holes 9 are arranged in several rows, in same row The line of centres of each release through-hole 9 is a curve, which corresponds to mutually passing through for liquid-passing hole 4 and 8 inner surface of release protrusion Line；Positioning apparatus for circumferential direction 6 is provided between valve rod 5 and valve body 1, referring to Fig. 5, positioning apparatus for circumferential direction 6 includes being mounted on valve body 1 The location hole 61 on positioning ball 62 and valve rod 5 in middle valve rod hole wall, positions and is equipped with spring 63 between ball 62 and valve body 1, positioning Ball 62 is mounted on by positioning sleeve on valve body 1 with spring 63, and location hole 61 is the conical bore processed on 5 outer surface of valve rod, Its position is corresponding with the positioning position of ball 62, and for each location hole 61 along 5 circumferential array of valve rod, the quantity of location hole 61 and release are logical The number of rows in hole 9 is corresponding.

Fig. 3 shows the effect schematic diagram of the semi-open state release protrusion of this detachable pressure ball valve 8, and liquid stream is from valve body 1 Inlet enters the liquid outlet of valve body 1 through liquid-passing hole 4 from release through-hole 9, and release through-hole 9 plays the pressure at 1 inlet end of valve body To the control action of current limliting release, until liquid-passing hole 4 starts to be detached from release protrusion 8 into Normal on state.

Some specific implementation modes of the utility model are only listed above, but the utility model is not limited to that, also More improvement and transformation can be made, such as several release through-holes 9 may not be and be arranged in several rows, and can be Arbitrary arrangement on release protrusion；The release through-hole 9 can not also be parallel to 1 fluid hole of valve body, and can be and go out liquid The angled setting in hole；The positioning apparatus for circumferential direction 6 can also use conventional other positioning devices.And so on, as long as It is improvement and transformation made on the basis of the utility model basic principle, is regarded as falling into the protection model of the utility model In enclosing.

Claims (6)

1. a kind of detachable pressure ball valve, including valve body（1）, valve seat, spool sphere（2）And with spool sphere（2）Connected valve rod （5）, it is characterised in that：The valve seat includes liquid feeding side valve seat（3）With tapping side valve seat（7）, in the tapping side valve seat（7）On Equipped with release protrusion（8）, the release protrusion（8）Protrude from valve body（1）In fluid hole, and the release protrusion（8）With pass Spool sphere under closed state（2）Middle liquid-passing hole（4）Outlet end is adjacent, release protrusion（8）Inner surface is spherical surface, the spherical surface With tapping side valve seat（7）On spool sphere bearing surface be on same spherical surface, in release protrusion（8）On be provided with several releases Through-hole（9）, the release through-hole（9）With valve body（1）Fluid hole leads to；In the valve rod（5）With valve body（1）Between be provided with circumferential direction Positioning device（6）.

2. detachable pressure ball valve according to claim 1, it is characterised in that：Several release through-holes（9）It is arranged in several It arranges, each release through-hole in same row（9）The line of centres be a curve, the curve correspond to liquid-passing hole（4）With release protrusion （8）The intersection of inner surface.

3. detachable pressure ball valve according to claim 1 or 2, it is characterised in that：The release through-hole（9）It is parallel to valve body （1）Fluid hole.

4. detachable pressure ball valve according to claim 1, it is characterised in that：The release protrusion（8）Protrude cutting for part Facial contour is curve, which corresponds to liquid-passing hole（4）With release protrusion（8）The intersection of inner surface.

5. detachable pressure ball valve according to claim 1, it is characterised in that：The valve rod（5）With valve body（1）Between circumferential direction Positioning device（6）Including being mounted on valve body（1）Positioning ball in middle valve rod hole wall（62）And valve rod（5）On location hole（61）, Position ball（62）With valve body（1）Between be equipped with spring（63）, location hole（61）Position with positioning ball（62）Position it is corresponding.

6. detachable pressure ball valve according to claim 5, it is characterised in that：The location hole（61）Along valve rod（5）Circumferential row Row, location hole（61）Quantity and release through-hole（9）Number of rows it is corresponding.