CN105650287A - High-sealed adjusting butterfly valve - Google Patents

Abstract

The invention relates to a high-sealed adjusting butterfly valve. A supporting seat and the inner side of the upper plane of a valve body are movably mounted together through a small bolt and nut; the heights of the supporting seat and the valve body can be adjusted through an outer bolt and nut and an inner bolt and nut; a lower cover and the valve body are movably mounted together through an adjusting bolt and nut; a center shaft part of the lower cover and a lower shaft are coaxially provided with an ejecting convex column; and when the adjusting bolt and nut moves up and down, the ejecting convex column can be butted against or far from the lower shaft. The butterfly valve adjusts the up-down movement of a butterfly plate according to actual conditions, so that the tightness of the butterfly valve is improved, more convenience is brought for users to use, the production cost of enterprises is reduced, the butterfly valve can be used in different occasions, the convenience is brought to use, and the use range of the butterfly valve is widened; and as the valve body is ductile iron, and a sealing surface of the valve body has overlaying stainless steel, the service life of the sealing surface is greatly prolonged, and the service life of the butterfly valve is further prolonged.

Description

The adjustment butterfly valve of high sealing

Technical field

The invention belongs to valve technology field, the adjustment butterfly valve of especially a kind of high sealing.

Background technology

Valve (famen) is the function unit in fluid delivery system, has cut-off, adjustment, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief. For the valve of fluid control system, various valves used from the simplest stopping valve to very complicated robot control system(RCS), its kind and specification are quite various. Valve can be used for controlling the flowing of all kinds fluids such as air, water, steam, various corrosive medium, mud, oil product, liquid metal and radiating medium. Industrial valves door type is varied, is widely used in the industries such as chemical industry, food, water, electricity, mainly plays Flow-rate adjustment and the cut-off effect of fluid medium.

The butterfly plate of butterfly valve of the prior art is in the process used, owing to operating for a long time, along with the prolongation of duration of service, under waiting the impact of other factors under gravity, butterfly plate can move downward, thus can greatly reduce the stopping property of butterfly valve, bring great inconvenience to the use of user, also can give simultaneously and use enterprise to cause financial loss; And, butterfly plate is in the use procedure of reality sometimes, and the height of the butterfly plate used due to different occasions is also not quite similar, and owing to the installation position of butterfly plate is certain, therefore also brings inconvenience to use, reduces the use range of butterfly valve. In addition, the trim of the valve body of existing butterfly valve due to the frequency used higher, very easily wear damage, cause the work-ing life of butterfly valve shorter, bring loss to manufacturing enterprise, it is to increase the production efficiency of enterprise, also greatly wastes resource simultaneously.

Summary of the invention

It is an object of the invention to overcome the weak point of original technology, it is provided that a kind of design scientific and reasonable, structure simple, drastically increase sealing property, improve work-ing life, improve working efficiency, expand the adjustment butterfly valve of the high sealing of use range.

The technical scheme that technical solution problem of the present invention adopts is:

An adjustment butterfly valve for high sealing, comprises valve body, upper axle, bearing, axle sleeve, butterfly plate, lower axle and Xia Gai, and described butterfly plate is coaxially installed in valve body, axle on coaxial package on the valve body above this butterfly plate, axle under coaxial package on the valve body below this butterfly plate;This bearing settlement in the top of valve body and coaxial package outside upper axle, coaxial sealing suit axle sleeve outside upper axle between axle with valve body on this; On lower axle below described valve body, coaxial seal cartridge loads lid,

Described valve body is ball iron, the sealing surface weld deposit stainless steel layer of this valve body;

Outside the bottom surface upward axis of described bearing extend and along the circumferential direction uniform interval be shaped with major thread connection through hole, extend outside the upper plane upward axis of described valve body and it is shaped with and connects the corresponding outside screw connection through hole in hole with major thread, connect through hole and outside screw through this major thread to connect through hole whorl engagement outer bolt nut is installed, by this outer bolt nut by bearing together with on valve body, the outside of plane is movably arranged on; The bottom surface upward axis side of described bearing extends internally and is shaped with minor thread and connects through hole, the upper plane of valve body is shaped with and connects the corresponding blind screw hole of through hole with minor thread, through hole and blind screw hole internal thread engagement installation one inner bolt nut is connected at minor thread, by this little bolt nut by bearing together with on valve body, the inner side of plane is movably arranged on, the height of this bearing and valve body can be adjusted by this outer bolt nut and inner bolt nut;

The periphery of described lower lid is along the circumferential direction shaped with the through hole that is threaded in uniform interval, the lower plane of valve body is shaped with the be threaded blind hole corresponding with screw thread through hole, this through hole that is threaded engages with the blind hole internal thread that is threaded installs adjusting bolt nut, together with by this adjusting bolt nut lower lid being movably arranged on valve body, coaxially it is shaped with one at the axis position of this lower lid and lower axle and holds out against convex post, this holds out against convex post when the upper and lower motion of adjusting bolt nut, it is possible to hold out against or away from lower axle.

And, described in hold out against convex post towards lower axle place for weldering copper face.

Advantage and the positively effect of the present invention be:

1, this butterfly valve is provided with outer bolt nut, inner bolt nut, adjusting bolt nut and holds out against convex post, by regulating outer bolt nut and inner bolt nut can adjust the height of this bearing and valve body, thus drive butterfly plate to move up and down, thus the height of Indirect method butterfly plate; This holds out against convex post when the upper and lower motion of adjusting bolt nut, can hold out against or away from lower axle, thus indirectly regulate the motion up or down of butterfly plate, thus the up and down motion of butterfly plate is adjusted according to practical situation, thus improve the stopping property of butterfly valve, bring great convenience to the use of user, saved the production cost of enterprise; In addition, owing to this butterfly plate is in the use procedure of reality, it is possible to carry out the height of upper and lower adjustment butterfly plate according to practical situation, meet the use of different occasion, bring facility to use, expand the use range of this butterfly valve; Owing to this valve body is ball iron, built-up welding stainless steel is worn in the sealing of this valve body, greatly extends the work-ing life in sealing face, thus extends the work-ing life of this butterfly valve further.

2, this butterfly valve what hold out against convex post is weldering copper face towards lower axle place, effectively prevent the generation holding out against the fault phenomenon of convex post when holding out against lower axle, extend the work-ing life of this butterfly valve, further increase the accessibility of use, it is to increase the sealing property of butterfly valve.

Accompanying drawing explanation

Fig. 1 is the structural front view of the present invention;

The A-A that Fig. 2 is Fig. 1 partly cuts open figure to cross section;

Fig. 3 is the top perspective view of Fig. 1;

Fig. 4 is the III bilge construction enlarged diagram in Fig. 2;

Fig. 5 is the I bilge construction enlarged diagram in Fig. 2;

Fig. 6 is the II bilge construction enlarged diagram in Fig. 3.

Embodiment:

For content, the Characteristic of the present invention can be understood further, hereby enumerate following examples, and coordinate accompanying drawing to be described in detail as follows. It should be noted that, the present embodiment is descriptive, is not limited, can not thus limit protection scope of the present invention.

The adjustment butterfly valve of a kind of high sealing, as shown in Figure 1, Figure 2 and Figure 3, comprise valve body 1, upper axle 5, bearing 3, axle sleeve 6, butterfly plate 2, lower axle 7 and lower lid 4, described butterfly plate is coaxially installed in valve body, axle on coaxial package on valve body above this butterfly plate, axle under coaxial package on the valve body below this butterfly plate; This bearing settlement in the top of valve body and coaxial package outside upper axle, coaxial sealing suit axle sleeve outside upper axle between axle with valve body on this; On lower axle below described valve body, coaxial seal cartridge loads lid.

The innovative point of the present invention is:

(1) as shown in Figure 4, outside the bottom surface upward axis of described bearing extend 13 and along the circumferential direction uniform interval be shaped with major thread connection through hole (in figure non-label), extend 12 outside the upper plane upward axis of described valve body and it is shaped with and connects corresponding outside screw connection through hole (in figure non-label) in hole with major thread, connect through hole and outside screw through this major thread to connect through hole whorl engagement outer bolt nut 8 is installed, by this outer bolt nut by bearing together with on valve body, the outside of plane is movably arranged on, the bottom surface upward axis side of described bearing extends internally 10 and is shaped with minor thread and connects through hole (in figure non-label), in the upper plane of valve body, 11 are shaped with the blind screw hole (in figure non-label) corresponding with minor thread connection through hole, through hole and blind screw hole internal thread engagement installation one inner bolt nut 9 is connected at minor thread, by this little bolt nut by bearing together with on valve body, the inner side of plane is movably arranged on, the height of this bearing and valve body can be adjusted by this outer bolt nut and inner bolt nut, thus drive butterfly plate to move up and down, thus the height of Indirect method butterfly plate,

The periphery of described lower lid is along the circumferential direction shaped with the through hole that is threaded (in figure non-label) in uniform interval, the lower plane of valve body is shaped with the be threaded blind hole (in figure non-label) corresponding with screw thread through hole, this through hole that is threaded engages with the blind hole internal thread that is threaded installs adjusting bolt nut 14, together with by this adjusting bolt nut lower lid being movably arranged on valve body, coaxially it is shaped with one at the axis position of this lower lid and lower axle and holds out against convex post 16, this holds out against convex post on adjusting bolt nut, during lower motion, can hold out against or away from lower axle, thus indirectly regulate the motion up or down of butterfly plate, thus the up and down motion of butterfly plate is adjusted according to practical situation.

This butterfly valve is provided with outer bolt nut, inner bolt nut, adjusting bolt nut and holds out against convex post, by regulating outer bolt nut and inner bolt nut can adjust the height of this bearing and valve body, thus drive butterfly plate to move up and down, thus the height of Indirect method butterfly plate; This holds out against convex post when the upper and lower motion of adjusting bolt nut, can hold out against or away from lower axle, thus indirectly regulate the motion up or down of butterfly plate, thus the up and down motion of butterfly plate is adjusted according to practical situation, thus improve the stopping property of butterfly valve, bring great convenience to the use of user, saved the production cost of enterprise; In addition, owing to this butterfly plate is in the use procedure of reality, it is possible to carry out the height of upper and lower adjustment butterfly plate according to practical situation, meet the use of different occasion, bring facility to use, expand the use range of this butterfly valve.

(2) as shown in Figure 5, described what hold out against convex post is weldering copper face 15 towards lower axle place, effectively prevent the generation holding out against the fault phenomenon of convex post when holding out against lower axle, extends the work-ing life of this butterfly valve, further increase the accessibility of use, it is to increase the sealing property of butterfly valve.

(3) as shown in Figure 6, described valve body is ball iron, the sealing surface weld deposit stainless steel layer 17 of this valve body, owing to this valve body is ball iron, built-up welding stainless steel is worn in the sealing of this valve body, greatly extends the work-ing life in sealing face, thus extends the work-ing life of this butterfly valve further.

Claims (2)

1. an adjustment butterfly valve for high sealing, comprises valve body, upper axle, bearing, axle sleeve, butterfly plate, lower axle and Xia Gai, and described butterfly plate is coaxially installed in valve body, axle on coaxial package on the valve body above this butterfly plate, axle under coaxial package on the valve body below this butterfly plate; This bearing settlement in the top of valve body and coaxial package outside upper axle, coaxial sealing suit axle sleeve outside upper axle between axle with valve body on this; On lower axle below described valve body, coaxial seal cartridge loads lid, it is characterised in that:

Described valve body is ball iron, the sealing surface weld deposit stainless steel layer of this valve body;

Outside the bottom surface upward axis of described bearing extend and along the circumferential direction uniform interval be shaped with major thread connection through hole, extend outside the upper plane upward axis of described valve body and it is shaped with and connects the corresponding outside screw connection through hole in hole with major thread, connect through hole and outside screw through this major thread to connect through hole whorl engagement outer bolt nut is installed, by this outer bolt nut by bearing together with on valve body, the outside of plane is movably arranged on; The bottom surface upward axis side of described bearing extends internally and is shaped with minor thread and connects through hole, the upper plane of valve body is shaped with and connects the corresponding blind screw hole of through hole with minor thread, through hole and blind screw hole internal thread engagement installation one inner bolt nut is connected at minor thread, by this little bolt nut by bearing together with on valve body, the inner side of plane is movably arranged on, the height of this bearing and valve body can be adjusted by this outer bolt nut and inner bolt nut;

The periphery of described lower lid is along the circumferential direction shaped with the through hole that is threaded in uniform interval, the lower plane of valve body is shaped with the be threaded blind hole corresponding with screw thread through hole, this through hole that is threaded engages with the blind hole internal thread that is threaded installs adjusting bolt nut, together with by this adjusting bolt nut lower lid being movably arranged on valve body, coaxially it is shaped with one at the axis position of this lower lid and lower axle and holds out against convex post, this holds out against convex post when the upper and lower motion of adjusting bolt nut, it is possible to hold out against or away from lower axle.

2. the adjustment butterfly valve of high sealing according to claim 1, it is characterised in that: described in hold out against convex post towards lower axle place for weldering copper face.