CN204312722U - A kind of adjustment butterfly valve of high sealing - Google Patents

Abstract

The utility model relates to a kind of adjustment butterfly valve of high sealing, by stove 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; Together with being movably arranged on valve body by lower cover by adjusting bolt nut, be coaxially shaped with one at the axis position of this lower cover and lower shaft and hold out against projection, this holds out against projection when the upper and lower motion of adjusting bolt nut, can hold out against or away from lower shaft.This butterfly valve moves up and down according to actual conditions adjustment butterfly plate, improves the sealing of butterfly valve, brings great convenience to the use of user, save the cost of production of enterprise, meet the use of different occasion, bring facility to use, expand the using scope of this butterfly valve; Because this valve body is magnesium iron, built-up welding stainless steel is worn in the sealing of this valve body, greatly extends the working life in sealing face, thus extends the working life of this butterfly valve further.

Description

A kind of adjustment butterfly valve of high sealing

Technical field

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

Background technique

Valve (famen) is the controlling component 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 liquid control system, various valves used from the simplest stop valve to very complicated robot control system(RCS), its kind and specification are quite various.Valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, 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 flowing 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 service time, under waiting the impact of other factors under gravity, butterfly plate can move downward, thus greatly can reduce the sealing of butterfly valve, bring great inconvenience to the use of user, also can give simultaneously and use enterprise to cause economic loss; And butterfly plate is in the using process of reality sometimes, the height of the butterfly plate used due to different occasions is also not quite similar, and because the mounting point of butterfly plate is certain, therefore also brings inconvenience to use, reduces the using scope of butterfly valve.In addition, the sealing surface of the valve body of existing butterfly valve due to the frequency used higher, very easily wear damage, causes the working life of butterfly valve shorter, brings loss to manufacturing enterprise, improve the manufacturing efficiency of enterprise, also greatly wastes resource simultaneously.

Model utility content

The purpose of this utility model is the deficiency overcoming original technology, provides the adjustment butterfly valve that a kind of design science is reasonable, structure simple, drastically increase sealability, improve working life, improve working efficiency, expand the high sealing of using scope.

The technological scheme that the utility model technical solution problem adopts is:

An adjustment butterfly valve for high sealing, comprise valve body, upper axle, bearing, axle sleeve, butterfly plate, lower shaft and lower cover, described butterfly plate is coaxially installed in valve body, axle on coaxial package on the valve body above this butterfly plate, coaxial package lower shaft on the valve body below this butterfly plate; This bearing settlement in the top of valve body and coaxial package outside upper axle, the outer co-axial seal suit of the upper axle on this between axle and valve body axle sleeve; Co-axial seal suit lower cover on lower shaft below described valve body,

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

The bottom surface upward axis extension of described bearing and along the circumferential direction uniform interval be shaped with major thread connecting through hole, the upper plane upward axis extension of described valve body is also shaped with the outside thread connecting through hole corresponding with major thread attachment hole, through this major thread connecting through hole and outside thread connecting through hole thread 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 connecting through hole, the upper plane of valve body is shaped with the blind screw hole corresponding with minor thread connecting through hole, at minor thread connecting through hole and blind screw hole internal thread engagement installation one inner bolt nut, by this stove 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 cover 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 tapped 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 cover being movably arranged on valve body, coaxially be shaped with one at the axis position of this lower cover and lower shaft and hold out against projection, this holds out against projection when the upper and lower motion of adjusting bolt nut, can hold out against or away from lower shaft.

And, described in what hold out against projection is bit copper face towards lower shaft place.

Advantage of the present utility model and good effect are:

1, this butterfly valve is provided with outer bolt nut, inner bolt nut, adjusting bolt nut and holds out against projection, by the height regulating outer bolt nut and inner bolt nut can adjust 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 projection when the upper and lower motion of adjusting bolt nut, can to hold out against or away from lower shaft, thus indirectly regulate the motion up or down of butterfly plate, thus moving up and down according to actual conditions adjustment butterfly plate, thus improve the sealing of butterfly valve, bring great convenience to the use of user, saved the cost of production of enterprise; In addition, because this butterfly plate is in the using process of reality, the height of upper and lower adjustment butterfly plate can be carried out according to actual conditions, meet the use of different occasion, bring facility to use, expand the using scope of this butterfly valve; Because this valve body is magnesium iron, built-up welding stainless steel is worn in the sealing of this valve body, greatly extends the working life in sealing face, thus extends the working life of this butterfly valve further.

2, this butterfly valve what hold out against projection is bit copper face towards lower shaft place, effectively prevent the generation holding out against the fault phenomenon of projection when holding out against lower shaft, extending the working life of this butterfly valve, further increase the convenience of use, improve the sealability of butterfly valve.

Accompanying drawing explanation

Fig. 1 is structural front view of the present utility model;

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

Fig. 3 be Fig. 1 overlook enlarged view;

Fig. 4 is the III portion structure enlarged diagram in Fig. 2;

Fig. 5 is the I portion structure enlarged diagram in Fig. 2;

Fig. 6 is the II portion structure enlarged diagram in Fig. 3.

Embodiment:

For content of the present utility model, Characteristic can be understood further, hereby exemplify 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 determinate, can not limit protection domain of the present utility model thus.

A kind of adjustment butterfly valve 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 shaft 7 and lower cover 4, described butterfly plate is coaxially installed in valve body, axle on coaxial package on valve body above this butterfly plate, coaxial package lower shaft on the valve body below this butterfly plate; This bearing settlement in the top of valve body and coaxial package outside upper axle, the outer co-axial seal suit of the upper axle on this between axle and valve body axle sleeve; Co-axial seal suit lower cover on lower shaft below described valve body.

Innovative point of the present utility model is:

(1) as shown in Figure 4, the bottom surface upward axis extension 13 of described bearing and along the circumferential direction uniform interval be shaped with major thread connecting through hole (in figure non-label), the upper plane upward axis extension 12 of described valve body is also shaped with the outside thread connecting through hole (in figure non-label) corresponding with major thread attachment hole, through this major thread connecting through hole and outside thread connecting through hole thread 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 be shaped with minor thread connecting 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 connecting through hole, at minor thread connecting through hole and blind screw hole internal thread engagement installation one inner bolt nut 9, by this stove 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 cover 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 tapped 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 cover being movably arranged on valve body, coaxially be shaped with one at the axis position of this lower cover and lower shaft and hold out against projection 16, this holds out against projection on adjusting bolt nut, during lower motion, can to hold out against or away from lower shaft, thus indirectly regulate the motion up or down of butterfly plate, thus moving up and down according to actual conditions adjustment butterfly plate.

This butterfly valve is provided with outer bolt nut, inner bolt nut, adjusting bolt nut and holds out against projection, by the height regulating outer bolt nut and inner bolt nut can adjust 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 projection when the upper and lower motion of adjusting bolt nut, can to hold out against or away from lower shaft, thus indirectly regulate the motion up or down of butterfly plate, thus moving up and down according to actual conditions adjustment butterfly plate, thus improve the sealing of butterfly valve, bring great convenience to the use of user, saved the cost of production of enterprise; In addition, because this butterfly plate is in the using process of reality, the height of upper and lower adjustment butterfly plate can be carried out according to actual conditions, meet the use of different occasion, bring facility to use, expand the using scope of this butterfly valve.

(2) as shown in Figure 5, described what hold out against projection is bit copper face 15 towards lower shaft place, effectively prevent the generation holding out against the fault phenomenon of projection when holding out against lower shaft, extending the working life of this butterfly valve, further increase the convenience of use, improve the sealability of butterfly valve.

(3) as shown in Figure 6, described valve body is magnesium iron, the sealing surface weld deposit stainless steel lining 17 of this valve body, because this valve body is magnesium iron, built-up welding stainless steel is worn in the sealing of this valve body, greatly extends the working life in sealing face, thus extends the working life of this butterfly valve further.

Claims (2)

1. an adjustment butterfly valve for high sealing, comprise valve body, upper axle, bearing, axle sleeve, butterfly plate, lower shaft and lower cover, described butterfly plate is coaxially installed in valve body, axle on coaxial package on the valve body above this butterfly plate, coaxial package lower shaft on the valve body below this butterfly plate; This bearing settlement in the top of valve body and coaxial package outside upper axle, the outer co-axial seal suit of the upper axle on this between axle and valve body axle sleeve; Co-axial seal suit lower cover on lower shaft below described valve body, is characterized in that:

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

The bottom surface upward axis extension of described bearing and along the circumferential direction uniform interval be shaped with major thread connecting through hole, the upper plane upward axis extension of described valve body is also shaped with the outside thread connecting through hole corresponding with major thread attachment hole, through this major thread connecting through hole and outside thread connecting through hole thread 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 connecting through hole, the upper plane of valve body is shaped with the blind screw hole corresponding with minor thread connecting through hole, at minor thread connecting through hole and blind screw hole internal thread engagement installation one inner bolt nut, by this stove 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 cover 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 tapped 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 cover being movably arranged on valve body, coaxially be shaped with one at the axis position of this lower cover and lower shaft and hold out against projection, this holds out against projection when the upper and lower motion of adjusting bolt nut, can hold out against or away from lower shaft.

2. the adjustment butterfly valve of high sealing according to claim 1, is characterized in that: described in what hold out against projection is bit copper face towards lower shaft place.