A kind of multifunction valve
Technical field
The utility model relates to a kind of valve, especially a kind of multifunction valve that is used for the process equipment of industries such as medicine, biology and food.
Background technique
That sells in the market is used for medicine, valve on the process equipment of industries such as biology and food all is the valve of individualism, but often discovery need be installed multiple valve simultaneously on same pipeline in the process equipment of these industries, for example just stop valve need be installed simultaneously on the pipeline between fermenting tub in medical manufacturing mechanism and the refinement jar, throttle valve and membrane valve, these valves are installed when not only taking a lot of work respectively on same pipeline, and in process of production owing to need the operating stem of control too much to bother very much, a plurality of valves are installed in addition simultaneously can increase equipment cost.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of multifunction valve, and this multifunction valve has possessed the function of stop valve and throttle valve simultaneously.
For this reason, the multifunction valve that the utility model provides comprises valve body, valve gap and valve rod, and valve rod is provided with flap, and flap comprises by flap and taper valve, wherein taper valve with interconnect by flap, taper valve can be relatively by flap along axial direction elastic telescopic up and down; The corresponding taper valve in the material inlet place of valve body is provided with the conical surface, the inwall at contiguous material inlet place is provided with by the flap fitting surface on the valve body, when valve rod compresses downwards taper valve can with conical surface drive fit, by flap can with by flap fitting surface drive fit.
Because the valve rod of the utility model multifunction valve is provided with interconnective taper valve and ends flap, taper valve can be relatively by flap elastic telescopic up and down vertically, the corresponding taper valve in the material inlet place of valve body is provided with the conical surface, the inwall at contiguous material inlet place is provided with by the flap fitting surface on the valve body, when valve rod compresses downwards taper valve can with conical surface drive fit, by flap can with by flap fitting surface drive fit.When the utility model multifunction valve is closed the drive fit of the taper valve and the conical surface and by flap with the valve interior wall at contiguous material inlet place on the drive fit by the flap fitting surface realized the double seal effect, this sealing effect has met or exceeded the sealing effect that stop valve and membrane valve are installed respectively, the flow pass of material slowly becomes big in the process of moving on the taper valve when the utility model multifunction valve is slowly opened, this structure can replace the function of throttle valve substantially, so the utility model multifunction valve can replace stop valve, realize three-in-one control on the basis of throttle valve and membrane valve.
Description of drawings
Fig. 1 is the structural representation of the utility model multifunction valve.
Fig. 2 is the structural representation of the last flap among Fig. 1.
Fig. 3 is the structural representation of the spring seat among Fig. 1.
Fig. 4 is the structural representation of the lower Disc among Fig. 1.
Fig. 5 is the structural representation of the taper valve among Fig. 1.
Fig. 6 is the structural representation of the barrier film lobe among Fig. 1.
Fig. 7 is the plan view of the barrier film lobe among Fig. 1.
Fig. 8 is the structural representation of Fig. 1 septation.
In each accompanying drawing: 1, valve body, 2, valve gap, 3, valve rod, 4, the conical surface, 5, by flap, 6, taper valve, 7, material inlet, 8, by the flap fitting surface, 9, last flap, 10, lower Disc, 11, spring groove, 12, elastic component, 13, the barrier film lobe, 14, barrier film, 15, outlet valve, 16, T shape spring seat, 17, ladder surface, 18, seal ring, 19, sealing gasket, 20, pad, 21, connecting rod, 22, locating slot, 23, center through hole, 24, locating bump, 25, the annular step tread, 26, boss, 27, guiding groove, 28, guiding projection, 29, pipe fitting, 30, the long pin of spring seat.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model multifunction valve comprises valve body 1, valve gap 2 and valve rod 3, valve rod 3 tops have outside thread, valve gap 2 is provided with the internal thread with the outside thread of valve rod 3 coupling, valve rod 3 is provided with flap, flap comprises by flap 5 and taper valve 6, wherein taper valve 6 with interconnect by flap 5, taper valve 6 can be relatively by flap 5 along axial direction elastic telescopic up and down; The corresponding taper valve 6 in material inlet 7 places of valve body 1 is provided with the conical surface 4, the inwall at contiguous material inlet 7 places is provided with by flap fitting surface 8 on the valve body 1, when valve rod 3 compresses downwards taper valve 6 can with the conical surface 4 drive fits, by flap 5 can with by flap fitting surface 8 drive fits.In the present embodiment in order to realize that taper valve 6 ends the elastic telescopic up and down of flap 5 relatively, constitute by last flap 9 and lower Disc 10 by flap 5, last flap 9 and lower Disc 10 are threaded, court is arranged with spring groove 11 in the last flap 9, be provided with elastic component 12 in the spring groove 11, elastic component 12 belows are pressed with T shape spring seat 16, T shape spring seat 16 passes lower Disc 10 and is connected with taper valve 6, the pipe fitting 29 that has internal thread on the taper valve 6, the capable spring seat 11 of T is threaded with pipe fitting 29 by the long pin 30 of externally threaded spring seat that has that it extends downwards.
As shown in Figure 1, for the top that the makes the utility model multifunction valve material that can not deposit, and flap 3 can not contacted with material easily cause corrosion, on the valve rod 3 of flap 5 tops, also be provided with barrier film lobe 13 and barrier film 14, valve rod 3 bottoms are connected with barrier film lobe 13, valve rod 3 can rotate relative to barrier film lobe 13, by being provided with connecting rod 21 above the flap 5, connecting rod 21 passes barrier film 14 and is connected with barrier film lobe 13, barrier film 14 clamps by barrier film lobe 13 with by flap 5, and barrier film 14 peripheries are sandwiched between valve gap 3 and the valve body 1.The existence of barrier film lobe 13 in the present embodiment can be played the effect of support to barrier film 14, and the support owing to barrier film lobe 13 when barrier film 14 is subjected to impacting energetically of material can not broken barrier film 14 easily.
As Fig. 6, Fig. 7, shown in Figure 8, in order to make barrier film lobe 13, barrier film 14 and tight more to prevent that material from infiltrating from three's junction by the cooperation of flap 5, and then cause corrosion to valve rod, barrier film lobe 13 bottom central authorities offer locating slot 22, offer center through hole 23 on the barrier film 14, be provided with locating bump 24 around the barrier film 14 upper face center through holes 23 with locating slot 22 couplings, the bottom of center through hole 23 is provided with annular step tread 25 on the barrier film 14, and the bottom of ending the upper surface connecting rod 21 of flap 5 is provided with boss 26; Connecting rod 21 passes center through hole 23 and is threaded with barrier film lobe 13, locating bump 24 enters in the locating slot 22, locating bump 24 and locating slot 22 each wall drive fit, boss 26 enters the position that annular step tread 25 is set on the center through hole 23, boss 26 and annular step tread 24 drive fits.Valve rod 3 is isolated in the top of barrier film 14 in the present embodiment, generally can not contact with material, so valve rod 3 can not corroded easily.
As Fig. 1, shown in Figure 7, for barrier film lobe 13 can not rotated or disengaging configuration under the control of valve rod 3 easily, the both sides of barrier film lobe 13 is provided with guiding groove 27, corresponding guiding groove 27 is provided with guiding projection 28 on the inwall of valve gap 2, guiding projection 28 enters in the guiding groove 27, and barrier film lobe 13 moves on the routes that guiding projection 28 and guiding groove 27 limit jointly when valve rod 3 rotates.
As shown in Figure 1, sealing effect when the utility model multifunction valve is closed is better, valve body 1 inwall at material inlet 7 places is provided with ladder surface 17, ladder surface 17 is provided with the band conical surface 4 and ends the seal ring 18 of flap fitting surface 8, the conical surface 4 drive fits of taper valve 6 and seal ring 18 when valve rod 3 compresses downwards, by the seal ring 18 at flap 5 and contiguous material inlet 7 places by flap fitting surface 8 drive fits.
As shown in Figure 1, the discharging of dirty gas and the sterilization in the production process in the pipeline when producing for convenience, valve body 1 bottom also is provided with the outlet valve 15 to outside opening, and outlet valve 15 is a kind of quick type ball valves.
The working method of the utility model multifunction valve is: when needing throttle down, at first rotation valve rod 3, valve rod 3 rotates drive barrier film lobe 13 to pressing down relative to barrier film lobe 13 and valve gap 2, barrier film lobe 13 drives barrier film 14 again and presses down by flap 5, taper valve 6 at first contacts with the conical surface 4 at material inlet 7 places in this process, because taper valve 6 can end flap 5 elastic telescopics relatively, at this moment taper valve 6 at first with conical surface drive fit, then continue to press down the back by flap 5 again with contiguous material inlet 7 by flap fitting surface 8 drive fits; When needs are opened valve, same rotation valve rod 3 makes its rising, barrier film lobe 13, barrier film 14 and all rise by flap 5, in the process that rises, at first unclamp and the drive fit of ending flap fitting surface 8 by flap 5, then taper valve 6 drive fit with the conical surface 4 of coming up, the area of valve open slowly becomes greatly in this process, up to all opening.Whole operating process septations 14 all the time under the fixing situation of periphery its central position moving up and down, identical with the motion mode of the barrier film of membrane valve.