Combined butterfly valve with double-pressure adjustment
Technical Field
The invention relates to a sewage pipeline valve, in particular to a composite butterfly valve with double-pressure regulation.
Background
The operating torque of butterfly valve is little, and the installation space is little and in the middle of the light in weight quilt is administered sewage in the wide use, especially can avoid the jam condition that silt caused at the in-process that flows because butterfly valve self opens the valve gap greatly under the environment of many mud, but still some problems need improve in the use:
because the butterfly valve is closed quickly, silt particles are accumulated near the butterfly plate along a part with large inner flow inertia, the valve is opened difficultly during secondary opening, particularly, the bottom edge is abraded seriously, and the sealing performance of the inner wall of the valve body is reduced in a long time.
Disclosure of Invention
In order to solve the problems, the invention provides a composite butterfly valve with double-pressure regulation.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a combined type butterfly valve with two pressure regulations, its structure includes: the double-control valve seat is horizontally arranged at the top of the base, the end of the external sleeve head is mutually nested with the end at the rear end of the double-control valve seat, the vertical support is vertically fixed at the top of the double-control valve seat and is connected with the gear box, a gear inside the gear box is tightly matched with a rotating shaft of the control valve, the control valve is fixed at the left side of the control valve seat and is mutually vertical to the control valve seat, the control valve is arranged at the top of the double-control valve seat, and the internal structure of the double-control valve seat comprises: the anti-stacking device comprises a movable flow cavity, a second valve clack, an anti-stacking bottom block, a composite control rod and a first valve clack, wherein the inner wall of the movable flow cavity is tightly attached to the periphery of the second valve clack, the anti-stacking bottom block is fixedly welded to the bottom side of the inner wall of the movable flow cavity, the composite control rod vertically penetrates through the center lines of the first valve clack and the second valve clack, and the composite control rod is connected with a gear box at the top.
As a further improvement of the invention, the movable flow cavity consists of a spacing tube cavity, a control base and a limiting ring block, the spacing tube cavity and the control base at the top are welded and fixed to form an integral structure, the inner diameter of the spacing tube cavity is consistent with the outer diameter of the second valve clack, and the limiting ring block is fixed at the bottom of the spacing tube cavity and attached to the top surface of the base.
As a further improvement of the invention, the first valve clack is composed of an adjusting clack body, an adjusting inner rod and a protection outer rod, wherein the middle part of the adjusting clack body is vertically divided into a line and tightly attached to the adjusting inner rod, the adjusting inner rod vertically penetrates through the interior of the protection outer rod, and the protection outer rod is welded at the top end of the second valve clack.
As a further improvement of the invention, the adjusting petal body consists of a spacer, a partition plate, a sealing elastic ring, a micro foot support and a homotheter, wherein the spacer is horizontally arranged at the top of the partition plate, the partition plate is mutually nested with the surrounding sealing elastic ring, the micro foot support is provided with more than two inner rings which are fixedly connected with the sealing elastic ring through glue, and the homotheter is arranged at the bottom of the partition plate and is mutually parallel to the spacer at the top.
As a further improvement of the invention, the spacer consists of a blending plate, a top lifting tooth, a bottom lifting tooth, a return elastic rod and a spring body, wherein the blending plate is tightly attached to the end surface of the top lifting tooth, the axis of the top lifting tooth is matched with the return elastic rod, a small gap is formed between the axis of the top lifting tooth and the return elastic rod, the spring body is arranged around the return elastic rod and is vertically fixed in an inner groove of the blending plate, and the bottom lifting tooth is connected to the top of the sealing elastic ring through glue.
As a further improvement of the invention, the pipe diameters of the two sides of the spacing pipe cavity are different, and the pipe diameter of the right side is nested in the spacing pipe cavity.
As a further improvement of the invention, the raised guide teeth on the surface of the second valve flap are arranged in an annular array.
As a further improvement of the invention, the top lifting tooth and the bottom lifting tooth rotate around the axes of the return elastic rod.
As a further improvement of the invention, the edge of the inflow opening part of the movable flow cavity is in an oblique angle shape.
The invention has the beneficial effects that:
aiming at the problem that the valve leaf of the butterfly valve is difficult to open in a sediment-rich environment, the invention improves the method and controls the water flow in a double-valve-flap mode, so that the flow is more stably regulated, the sediment deposited around the small valve flap after opening can be mixed with the liquid along the diversion trench of the second valve flap, and the excessive friction with the sediment can be avoided by opening the main valve flap again.
In conclusion, the invention enables sediment at the bottom to actively flow along with water flow again in a flow control mode of the double-control valve flap after improvement, thereby avoiding the conditions that the second valve flap is blocked by the sediment when being opened, so that the opening is difficult, and the sealing performance is reduced due to abrasion in the process of contacting with the sediment.
Drawings
Fig. 1 is a schematic structural diagram of a composite butterfly valve with dual pressure regulation according to the present invention.
FIG. 2 is a schematic structural view of the double control valve seat of the present invention.
Fig. 3 is a schematic structural view of a movable flow chamber of the present invention.
Fig. 4 is a schematic view of a first valve flap structure of the present invention.
Fig. 5 is a schematic structural diagram of an adjusting flap body according to the present invention.
Fig. 6 is a schematic view of the spacer structure of the present invention.
Fig. 7 is a schematic view of the contraction of the sealing ring according to the present invention.
Fig. 8 is a schematic perspective view of a second flap according to the present invention.
Fig. 9 is a schematic perspective view of the adjusting inner rod and the protective outer rod according to the present invention.
In the figure: the double-control valve comprises a double-control valve seat-1, a base-2, an external sleeve-3, a vertical support-4, a gear box-5, a control valve-6, a flow control valve-7, a movable flow cavity-11, a second valve flap-12, an anti-stack bottom block-13, a composite control rod-14, a first valve flap-15, a spacing tube cavity-111, a control base-112, a limit ring block-113, an adjusting flap body-151, an adjusting inner rod-152, a protective outer rod-153, a spacer-1511, a separation plate-1512, a sealing elastic ring-1513, a micro foot support-1514, an isotope device-1515, a mixing plate-15 a, a top lifting tooth-15 b, a bottom lifting tooth-15 c, a return elastic rod-15 d and a spring body-15 e.
Detailed Description
In order to make the technical means, the creation features, the achievement objects and the effects of the present invention easy to understand, fig. 1 to 9 schematically show the structure of the double control valve seat according to the embodiment of the present invention, and the present invention will be further described with reference to the following detailed description.
Examples
As shown in fig. 1 to 9, the present invention provides a composite butterfly valve with dual pressure adjustment, which structurally comprises: the double-control valve seat comprises a double-control valve seat 1, a base 2, an external sleeve head 3, a vertical support 4, a gear box 5, a first control valve 6 and a second flow control valve 7, wherein the double-control valve seat 1 is horizontally arranged at the top of the base 2, the end head of the external sleeve head 3 is mutually nested with the end head at the rear end of the double-control valve seat 1, the vertical support 4 is vertically fixed at the top of the double-control valve seat 1 and is connected with the gear box 5, a gear inside the gear box 5 is tightly matched with a rotating shaft of the first control valve 6, the first control valve 6 is fixed at the left side of the second flow control valve 7 and is mutually vertical to the first control valve and the second control valve, the second flow control: the anti-piling-up device comprises a movable flow cavity 11, a second valve clack 12, an anti-piling-up bottom block 13, a composite control rod 14 and a first valve clack 15, wherein the periphery of the inner wall of the movable flow cavity 11 is tightly attached to the periphery of the second valve clack 12, the anti-piling-up bottom block 13 is welded and fixed to the bottom side of the inner wall of the movable flow cavity 11, the composite control rod 14 vertically penetrates through the center lines of the first valve clack 15 and the second valve clack 12, the composite control rod 14 is connected with a gear box 5 at the top, and the anti-piling-up bottom block 13 is arranged at the bottom of the movable flow cavity 11, so that sand and soil are prevented from being scattered and.
As a further improvement of the present invention, the movable flow chamber 11 is composed of a spacing tube chamber 111, a control base 112, and a stop ring block 113, the spacing tube chamber 111 and the control base 112 at the top are welded and fixed to form an integral structure, the inner diameter of the spacing tube chamber 111 is identical to the outer diameter of the second valve flap 12, the stop ring block 113 is fixed at the bottom of the spacing tube chamber 111 and is attached to the top surface of the base 2, the stop ring block 113 enables the spacing tube chamber 111 to be fixed well when rotating, and avoids random rotation of the spacing tube chamber 111 when opening the control one valve 6 and the flow control two valves 7.
As a further improvement of the present invention, the first valve flap 15 is composed of an adjusting flap body 151, an inner adjusting rod 152, and an outer protecting rod 153, wherein a vertical line at the middle of the adjusting flap body 151 is tightly attached to the inner adjusting rod 152, the inner adjusting rod 152 vertically penetrates through the inner part of the outer protecting rod 153, and the outer protecting rod 153 is welded at the top end of the second valve flap 12.
As a further improvement of the present invention, the adjusting flap 151 is composed of a spacer 1511, a partition 1512, a sealing elastic ring 1513, a micro-foot support 1514, and a co-location device 1515, wherein the spacer 1511 is horizontally installed on the top of the partition 1512, the partition 1512 is nested with the surrounding sealing elastic ring 1513, the micro-foot support 1514 is provided with more than two inner rings fixed on the sealing elastic ring 1513 by glue connection, the co-location device 1515 is installed on the bottom of the partition 1512 and is parallel to the spacer 1511 on the top, the micro-foot support 1514 can provide a certain elasticity to allow the sealing elastic ring 1513 to be buckled between the two when the sealing elastic ring 1513 is flush with the second valve flap 12, so that the sealing performance is greatly improved, and the service life of the sealing ring 1513 can be prolonged due to the action of the spacer 1511 when the sealing ring is opened.
As a further improvement of the present invention, the spacer 1511 comprises a matching plate 15a, a top lifting tooth 15b, a bottom lifting tooth 15c, a return elastic rod 15d, and a spring body 15e, the matching plate 15a is tightly attached to the end surface of the top lifting tooth 15b, the axis of the top lifting tooth 15b is engaged with the axis of the return elastic rod 15d and has a small gap, the spring body 15e is disposed around the return elastic rod 15d and vertically fixed in an inner groove of the matching plate 15a, and the bottom lifting tooth 15c is glued to the top of the sealing elastic ring 1513.
As a further improvement of the invention, the pipe diameters of the two sides of the spacing pipe cavity 111 are different, the pipe diameter of the right side is nested in the spacing pipe cavity 111, and the pipe diameter along the water flow direction is from large to small, so that the sealing performance can be improved, and the leakage condition can be reduced.
As a further improvement of the invention, the raised guide teeth arranged on the surface of the second valve clack 12 are arranged in an annular array, and rotate in the process that the water body flows from the middle hole to roll up sediment settled inside.
As a further improvement of the invention, the axes of the top lifting tooth 15b and the bottom lifting tooth 15c rotate around the return elastic rod 15d, so that on one hand, the lifting stability can be ensured, and on the other hand, the lifting is more accurate in returning, and the situation of clamping caused by non-concentricity is avoided.
As a further improvement of the invention, the edge of the inflow opening part of the movable flow cavity 11 is in an oblique angle shape, so that the flow resistance is effectively reduced, and the condition of erosion corrosion is avoided.
The working principle is as follows:
in the installation process, the double-control valve seat 1 is fixed behind the top of the base 2 and is connected with the outer pipe through the external sleeve head 3, and the gear box 5 is arranged on the upper end sealing elastic ring 1513 of the vertical support 4 to avoid water vapor erosion caused by over-close.
Wherein control a valve 6 and accuse and flow two valves 7 and control first valve clack 15 and second valve clack 12 in the middle of the chamber 11 that flows of activity respectively, because the washing away of bottom silt is comparatively serious, consequently the mar appears easily, and the condition that causes the diapire more and more thin for a long time, consequently the bottom welding of the chamber 11 that flows of activity prevents piling cutting apart of bottom piece 13 and be used for silt, just protects the cavity bottom.
First valve clack 15 is opened earlier in the use, makes inside circulation, and the inside top of opening first valve clack 15 in-process spacer 1511 rises tooth 15b and the inside bottom and rises tooth 15c and crisscross action earlier makes sealed elastic ring 1513 retract to inside the cavity of division board 1512, can avoid the condition of wearing and tearing rubber circle, improves its life.
Open first valve clack 15 and make inside rivers wash through from the middle part of second valve clack 12 to because there is the microgroove of water conservancy diversion in the second valve clack 12 surface to make rivers rotate gradually, fully stir the messenger and flow out to the accumulational silt at inner wall and second valve clack 12 edge, can open second valve clack 12 very easily this moment, the condition that the jam can not appear in the edge is very convenient simultaneously.
The water valve is closed by closing the second valve clack 12 and then closing the first valve clack 15, so that water resistance can be reduced, resistance in the closing process is smaller, influence of water flow on the valve clacks is reduced, and the elastic sealing ring 1513 returns to be sealed again under the action of the micro foot support 1514 after the first valve clack 15 is closed successfully.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.