Anti-slip type opposite clamping butterfly valve
Technical Field
The utility model relates to the field of valves, in particular to an anti-slip type wafer butterfly valve.
Background
The butterfly valve is a regulating valve with simple structure, and the butterfly valve for controlling the opening and closing of a low-pressure pipeline medium is a valve with a closing part which is a disc and rotates around a valve shaft to open and close.
The wafer butterfly valve has simple structure, small volume, light weight, simple operation and good fluid control property, and only consists of a few parts; the manual butterfly valve of current wafer-type has certain drawback when using, wafer-type butterfly valve can not bear great water pressure, its bearing capacity is relatively weak, when rivers are too big or external effort is too big, cause the valve body mounted position to take place the skew slip easily, and wafer-type is higher to the construction precision requirement, if the flange on two sides is not centering, the bolt can receive great shearing force, the valve takes place the skew easily and slides and lead to leaking consequently need urgently to research and develop a connection stability good, bearing capacity is strong, can bear great rivers impact force, still possess the anti-skidding formula wafer-type butterfly valve that prevents to lead to valve body mounted position slip skew because of the rivers impact force simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects that the traditional wafer-type butterfly valve is weak in bearing capacity, and the mounting position of a valve body is easy to deviate and slide when water flow is overlarge or external acting force is overlarge.
The utility model is achieved by the following specific technical means:
an anti-slip type wafer butterfly valve comprises a valve body, a support frame, a turbine rotator, a hand wheel, an inner bushing, an upper shaft sleeve, a lower shaft sleeve, a valve rod, a pin, a butterfly plate, a sealing ring, a pressing ring, a packing gland, a bottom cover and a sealing gasket; the valve body is provided with a water through hole, the outer surface of the valve body is provided with a boss, and the boss is provided with a shaft hole communicated with the water through hole; the support frame is positioned at the upper end of the valve body and is fixedly connected with a boss arranged at the upper end of the valve body through a bolt; the turbine rotator is positioned above the support frame and is fixedly connected to the support frame through a bolt; the hand wheel is fixedly connected with an input rotating shaft of the turbine rotator through a bolt; the inner bushing is arranged on the surface of a limber hole arranged on the valve body; the upper shaft sleeve is arranged in a shaft hole arranged on a boss at the upper end of the valve body; the lower shaft sleeve is arranged in a shaft hole arranged on a boss at the lower end of the valve body; the valve rod penetrates through the valve body limber hole and is arranged in the shaft holes of the bosses at the upper end and the lower end of the valve body, the valve rod is rotatably connected with the valve body through the upper shaft sleeve and the lower shaft sleeve, and the upper end of the valve rod extends into the turbine rotator and is connected with the output shaft of the turbine rotator; the valve rod is provided with a pin hole, the butterfly plate is provided with a mounting hole, and the butterfly plate is positioned in a through hole arranged on the valve body, is mounted on the valve rod through the mounting hole and is fixedly connected with the valve rod through a pin; the sealing ring is arranged on one side of the butterfly plate, the pressing ring is positioned on one side of the sealing ring, and the pressing ring is fixed on the butterfly plate through a bolt and is clamped and fixed between the butterfly plate and the pressing ring; the filler is positioned in the shaft holes at the upper end and the lower end of the valve body; the packing gland is positioned above the valve body and is fixedly connected with the valve body through a bolt, and the lower end of the packing gland extends into the shaft hole to extrude the packing arranged at the upper end of the packing gland; the bottom cover is positioned at the lower end of the valve body and is fixedly connected with the valve body through a bolt, and the upper end of the bottom cover extends into the axial hole of the valve body to extrude the filler arranged at the lower end; a sealing gasket is arranged between the valve body and the bottom cover.
Furthermore, the device also comprises an O-shaped sealing ring; the valve rod is provided with a groove; the two O-shaped sealing rings are positioned in the shaft holes at the upper end and the lower end of the valve body, are close to one side of the water through hole, are positioned between the valve rod and the valve body, and are arranged in a groove formed in the valve rod.
Furthermore, the outer surface of the valve body is provided with an anti-skidding clamping block and a hanging lug, and the hanging lug is provided with a guide bolt hole.
Furthermore, the neck bush is provided with an opening for the valve rod to pass through, and the neck bush is made of rubber and wraps the surface of the valve body limber hole.
Furthermore, the contact end face of the butterfly plate and the fluid is arc-shaped and is provided with a reinforcing rib.
Furthermore, the surface of the pin is plated with an anti-corrosion zinc-plating coating.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model has the advantages of good connection stability, strong bearing capacity, capability of bearing larger water flow impact force and the effect of preventing the sliding deviation of the installation position of the valve body caused by the water flow impact force; the valve body is fixed through the guide bolt hole that the valve body hangers was established to the stud when the assembly, reinforcing is to disk seat connection stability, antiskid fixture block joint simultaneously on two pipeline flange surfaces, further strengthen valve body and pipeline flange joint steadiness, prevent to meet high pressure, the medium that the impact force is big strikes and leads to the mounted position to take place the skew slip, and still be equipped with the locating pin hole on the antiskid fixture block, improve valve body and pipeline flange mounted position precision through the locating pin, still possess the effect that prevents the valve body and slide the skew simultaneously, make the valve open and close the moment, the valve body can bear the impact of bigger pressure, and self mounted position can not the skew.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic front view of the present invention.
FIG. 3 is a schematic side view of the present invention.
Fig. 4 is a schematic cross-sectional structure of the present invention.
The labels in the figures are: 1-valve body, 2-support frame, 3-turbine rotator, 4-handwheel, 5-inner bushing, 6-upper shaft sleeve, 7-lower shaft sleeve, 8-valve rod, 9-pin, 10-butterfly plate, 11-sealing ring, 12-pressing ring, 13-packing, 14-packing gland, 15-bottom cover, 16-sealing gasket and 17-O-shaped sealing ring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
examples
An anti-slip type wafer butterfly valve is shown in figures 1-4 and comprises a valve body 1, a support frame 2, a turbine rotator 3, a hand wheel 4, an inner bushing 5, an upper shaft sleeve 6, a lower shaft sleeve 7, a valve rod 8, a pin 9, a butterfly plate 10, a sealing ring 11, a pressing ring 12, a packing 13, a packing gland 14, a bottom cover 15 and a sealing gasket 16; the valve body 1 is provided with a water through hole, the outer surface of the valve body is provided with a boss, and the boss is provided with a shaft hole communicated with the water through hole; the support frame 2 is positioned at the upper end of the valve body 1 and is fixedly connected with a boss arranged at the upper end of the valve body 1 through a bolt; the turbine rotator 3 is positioned above the support frame 2 and is fixedly connected to the support frame 2 through bolts; the hand wheel 4 is fixedly connected with an input rotating shaft of the turbine rotator 3 through a bolt; the inner bushing 5 is arranged on the surface of a water through hole arranged on the valve body 1; the upper shaft sleeve 6 is arranged in a shaft hole arranged on a boss at the upper end of the valve body 1; the lower shaft sleeve 7 is arranged in a shaft hole arranged on a boss at the lower end of the valve body 1; the valve rod 8 passes through the water through hole of the valve body 1 and is arranged in shaft holes arranged on bosses at the upper end and the lower end of the valve body 1, is rotatably connected with the valve body 1 through an upper shaft sleeve 6 and a lower shaft sleeve 7, and the upper end of the valve rod extends into the turbine rotator 3 and is connected with an output shaft of the turbine rotator 3; a pin 9 hole is formed in the valve rod 8, a mounting hole is formed in the butterfly plate 10, the butterfly plate 10 is located in a water through hole formed in the valve body 1, is mounted on the valve rod 8 through the mounting hole, and is fixedly connected with the valve rod 8 through the pin 9; the sealing ring 11 is arranged on one side of the butterfly plate 10, the pressing ring 12 is arranged on one side of the sealing ring 11, the pressing ring 12 is fixed on the butterfly plate 10 through bolts, and the sealing ring 11 is clamped and fixed between the butterfly plate 10 and the pressing ring 12; the packing 13 is positioned in the shaft holes at the upper end and the lower end of the valve body 1; the packing gland 14 is positioned above the valve body 1, is fixedly connected with the valve body 1 through a bolt, and the lower end of the packing gland extends into the shaft hole to extrude the packing 13 arranged at the upper end of the packing gland; the bottom cover 15 is positioned at the lower end of the valve body 1 and is fixedly connected with the valve body 1 through a bolt, and the upper end of the bottom cover 15 extends into the shaft hole of the valve body 1 to extrude the packing 13 arranged at the lower end; a sealing gasket 16 is also arranged between the valve body 1 and the bottom cover 15.
Also comprises an O-shaped sealing ring 17; the valve rod 8 is provided with a groove; the two O-shaped sealing rings 17 are positioned in shaft holes at the upper end and the lower end of the valve body 1, are close to one side of the water through hole, are positioned between the valve rod 8 and the valve body 1, and are arranged in a groove formed in the valve rod 8.
The outer surface of the valve body 1 is provided with an anti-skid clamping block and a hanging lug, and the hanging lug is provided with a guide bolt hole.
The inner bushing 5 is provided with an opening through which the valve rod 8 passes, and the inner bushing 5 is made of rubber and wraps the surface of the limber hole of the valve body 1.
The contact end face of the butterfly plate 10 and the fluid is arc-shaped and is provided with a reinforcing rib.
The surface of the pin 9 is plated with an anti-corrosion zinc-plating coating.
The working principle is as follows: the butterfly valve is connected between two pipeline flanges in a butt-clamping mode through a stud, the hand wheel 4 is rotated to enable the turbine rotator 3 to drive the valve rod 8 connected with an output shaft of the turbine rotator to rotate, the opening and closing of the butterfly plate 10 are controlled by controlling the rotation of the valve rod 8, the circulation and the disconnection of fluid are controlled, an O-shaped sealing ring 17 and a packing 13 are arranged in a shaft hole of the valve body 1 to realize multiple sealing, the fluid is prevented from leaking from the shaft hole of the valve body 1, meanwhile, the packing gland 14 and a bottom cover 15 extrude the packing 13, the packing 13 is deformed, the sealing effect is improved, meanwhile, a sealing gasket 16 is arranged between the bottom cover 15 below the valve body 1 and the valve body 1, and the sealing performance of the matching of the shaft hole of the valve body 1 and the valve rod 8 is further improved; when assembling, the double-end screw passes through the guide bolt hole arranged on the hanger of the valve body 1 to fix the valve body 1, the connection stability of the valve seat is enhanced, meanwhile, the anti-skidding clamping block is clamped on the outer surfaces of the two pipeline flanges, the stability of the valve body 1 and the pipeline flange connection is further enhanced, high pressure is prevented from being met, the installation position is prevented from deviating and sliding due to medium impact with large impact force, the anti-skidding clamping block is further provided with the positioning pin 9 hole, the accuracy of the installation position of the valve body 1 and the pipeline flange is improved through the positioning pin 9, meanwhile, the effect of preventing the sliding deviation of the valve body 1 is also achieved, the valve body 1 can bear the impact with larger pressure in the opening and closing moment, and the installation position of the valve body can not deviate.
Wherein, also comprises an O-shaped sealing ring 17; the valve rod 8 is provided with a groove; two O-shaped sealing rings 17 are arranged, are positioned in the shaft holes at the upper end and the lower end of the valve body 1 and close to one side of the water through hole, are positioned between the valve rod 8 and the valve body 1, and are arranged in a groove arranged on the valve rod 8; the sealing performance of the matching between the shaft hole of the valve body 1 and the valve rod 8 is further enhanced by adding the O-shaped sealing ring 17, and the leakage of a liquid medium is prevented.
Wherein, the outer surface of the valve body 1 is provided with an anti-skid fixture block and a hanging lug, and the hanging lug is provided with a guide bolt hole; the stability of connection and fixation of the valve seat is enhanced, the valve seat can bear the impact of larger pressure when encountering high-pressure and high-impact medium impact, and the installation position of the valve seat cannot deviate.
Wherein, the inner bushing 5 is provided with an opening for the valve rod 8 to pass through, and the inner bushing 5 is made of rubber and wraps the surface of the water through hole of the valve body 1; the effect of increasing the sealing is achieved.
Wherein, the contact end surface of the butterfly plate 10 and the fluid is arc-shaped and is provided with a reinforcing rib; the direction of fluid impact can be changed, so that the destructive force generated by the direct impact of the fluid on the butterfly plate 10 is reduced, a certain buffering effect is also provided for the fluid, and the fluid impact resistance of the butterfly plate 10 is greatly improved.
Wherein, the surface of the pin 9 is plated with an anti-corrosion zinc-plating coating; prevent that pin 9 from rustting after long-time the use, thereby it influences the sealed effect of butterfly valve to lead to the linkage effect variation of valve rod 8 and butterfly plate 10.
Although the present disclosure has been described in detail with reference to the exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present disclosure.