CN204312719U - A kind of axis is without pin spline joint butterfly valve - Google Patents

A kind of axis is without pin spline joint butterfly valve Download PDF

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Publication number
CN204312719U
CN204312719U CN201420688245.3U CN201420688245U CN204312719U CN 204312719 U CN204312719 U CN 204312719U CN 201420688245 U CN201420688245 U CN 201420688245U CN 204312719 U CN204312719 U CN 204312719U
Authority
CN
China
Prior art keywords
valve
butterfly
valve shaft
butterfly plate
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420688245.3U
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Chinese (zh)
Inventor
裴叶青
李成
段淑清
庞慧高
常博
张国营
国伟兴
曹亚男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN AOTESI VALVE MANUFACTURING Co Ltd
Original Assignee
TIANJIN AOTESI VALVE MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN AOTESI VALVE MANUFACTURING Co Ltd filed Critical TIANJIN AOTESI VALVE MANUFACTURING Co Ltd
Priority to CN201420688245.3U priority Critical patent/CN204312719U/en
Application granted granted Critical
Publication of CN204312719U publication Critical patent/CN204312719U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of axis without pin spline joint butterfly valve, its valve shaft and butterfly plate are solidly installed by the spline on valve shaft, described butterfly plate is integrated to be made, be shaped with the valve shaft through hole with the spline tabling of valve shaft in the axis position of this butterfly plate, this butterfly plate can closely be set on valve shaft.This butterfly valve due to this butterfly plate be what be connected without pin with the Placement of valve body, long-time use after, because medium is to the corrosion of butterfly valve thus the phenomenon causing valve shaft position to reveal generation, thus the working life of this butterfly valve can not be improve.

Description

A kind of axis is without pin spline joint butterfly valve
Technical field
The utility model belongs to valve technology field, and especially a kind of axis is without pin spline joint butterfly valve.
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.
At present, the butterfly plate of existing butterfly valve mostly links together with pin and valve shaft, and after long-time use, the butterfly plate at the perishable pin place of medium, easily causes the spindle nose position of valve shaft to reveal, shorten the working life of butterfly valve; And, 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; In addition, butterfly plate is in the using process of reality sometimes, and 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.
Model utility content
The purpose of this utility model is the deficiency overcoming original technology, provides that a kind of design science is reasonable, structure is simple, drastically increase sealability, improve working life, improve working efficiency, expand the axis of using scope without pin spline joint butterfly valve.
The technological scheme that the utility model technical solution problem adopts is:
A kind of axis is without pin spline joint butterfly valve, described butterfly valve comprises valve body, valve shaft, worm gearing, axle sleeve, butterfly plate and lower cover, described butterfly plate co-axial seal is installed in the valve seat of valve body, valve body upper, lower two planes coaxially arrange worm gearing and lower cover respectively, the spindle nose position of this valve shaft is fixedly mounted with worm gearing by pin, the outer coaxial package valve body successively from top to bottom of valve shaft below this worm gearing, butterfly plate and lower cover, described valve shaft and between valve body and lower cover co-axial seal be set with axle sleeve, described valve shaft and butterfly plate are solidly installed by the spline on valve shaft, described butterfly plate is integrated to be made, the valve shaft through hole with the spline tabling of valve shaft is shaped with in the axis position of this butterfly plate, this butterfly plate can closely be set on valve shaft.
And, 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 valve 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 valve shaft.
And, described in what hold out against projection is bit copper face towards valve shaft bottom surface place.
Advantage of the present utility model and good effect are:
1, this butterfly valve due to this butterfly plate be what be connected without pin with the Placement of valve body, long-time use after, because medium is to the corrosion of butterfly valve thus the phenomenon causing valve shaft position to reveal generation, thus the working life of this butterfly valve can not be improve.
2, this butterfly valve is provided with adjusting bolt nut due to this butterfly valve 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 on adjusting bolt nut, during lower motion, can to hold out against or away from valve 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, save 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.
3, this butterfly valve what hold out against projection is bit copper face towards valve shaft bottom surface place, effectively prevent the generation holding out against the fault phenomenon of projection when holding out against the bottom surface of valve shaft, extend 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 is to partial cross-sectional cut-away view (not comprising worm gearing);
Fig. 3 be B-B in Fig. 2 to butterfly valve and the enlarged schematic partial view in linkage structure cross section of valve shaft;
Fig. 4 is the C portion structure enlarged diagram in Fig. 2.
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 axis is without pin spline joint butterfly valve, as Fig. 1, shown in Fig. 2 and Fig. 3, described butterfly valve comprises valve body 2, valve shaft 5, worm gearing 1, axle sleeve (in figure non-label), butterfly plate 4 and lower cover 6, described butterfly plate co-axial seal is installed in the valve seat 3 of valve body, valve body upper, lower two planes coaxially arrange worm gearing and lower cover respectively, the spindle nose position of this valve shaft is fixedly mounted with worm gearing by pin, the outer coaxial package valve body successively from top to bottom of valve shaft below this worm gearing, butterfly plate and lower cover, described valve shaft and between valve body and lower cover co-axial seal be set with axle sleeve.
Innovative point of the present utility model is:
(1) described valve shaft and butterfly plate are solidly installed by the spline 7 on valve shaft, and described butterfly plate is integrated to be made, and be shaped with the valve shaft through hole with the spline tabling of valve shaft in the axis position of this butterfly plate, this butterfly plate can closely be set on valve shaft; Because this butterfly plate is what be connected without pin with the Placement of valve body, long-time use after, because medium is to the corrosion of butterfly valve thus the phenomenon causing valve shaft position to reveal generation, thus the working life of this butterfly valve can not be improve;
As shown in Figure 4, 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 8, 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 valve shaft and hold out against projection 9, this holds out against projection on adjusting bolt nut, during lower motion, can to hold out against or away from valve 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 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 valve 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) what hold out against projection described in is bit copper face 10 towards valve shaft bottom surface place, effectively prevent the generation holding out against the fault phenomenon of projection when holding out against the bottom surface of valve shaft, extend the working life of this butterfly valve, further increase the convenience of use, improve the sealability of butterfly valve.

Claims (3)

1. an axis is without pin spline joint butterfly valve, described butterfly valve comprises valve body, valve shaft, worm gearing, axle sleeve, butterfly plate and lower cover, described butterfly plate co-axial seal is installed in the valve seat of valve body, upper and lower two planes of valve body coaxially arrange worm gearing and lower cover respectively, the spindle nose position of this valve shaft is fixedly mounted with worm gearing by pin, valve shaft below this worm gearing outer from top to bottom coaxial package valve body, butterfly plate and lower cover successively, described valve shaft and between valve body and lower cover co-axial seal be set with axle sleeve, it is characterized in that:
Described valve shaft and butterfly plate are solidly installed by the spline on valve shaft, and described butterfly plate is integrated to be made, and be shaped with the valve shaft through hole with the spline tabling of valve shaft in the axis position of this butterfly plate, this butterfly plate can closely be set on valve shaft.
2. axis according to claim 1 is without pin spline joint butterfly valve, it is characterized in that: 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 valve shaft and hold out against projection, this holds out against projection on adjusting bolt nut, during lower motion, can to hold out against or away from valve shaft.
3. axis according to claim 2 is without pin spline joint butterfly valve, it is characterized in that: described in what hold out against projection is bit copper face towards valve shaft bottom surface place.
CN201420688245.3U 2014-11-18 2014-11-18 A kind of axis is without pin spline joint butterfly valve Expired - Fee Related CN204312719U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420688245.3U CN204312719U (en) 2014-11-18 2014-11-18 A kind of axis is without pin spline joint butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420688245.3U CN204312719U (en) 2014-11-18 2014-11-18 A kind of axis is without pin spline joint butterfly valve

Publications (1)

Publication Number Publication Date
CN204312719U true CN204312719U (en) 2015-05-06

Family

ID=53135037

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420688245.3U Expired - Fee Related CN204312719U (en) 2014-11-18 2014-11-18 A kind of axis is without pin spline joint butterfly valve

Country Status (1)

Country Link
CN (1) CN204312719U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150506

Termination date: 20151118

EXPY Termination of patent right or utility model