CN108397556B - Valve body mechanism - Google Patents

Valve body mechanism Download PDF

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Publication number
CN108397556B
CN108397556B CN201810469328.6A CN201810469328A CN108397556B CN 108397556 B CN108397556 B CN 108397556B CN 201810469328 A CN201810469328 A CN 201810469328A CN 108397556 B CN108397556 B CN 108397556B
Authority
CN
China
Prior art keywords
valve
valve body
bearing
connecting piece
shaft
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.)
Active
Application number
CN201810469328.6A
Other languages
Chinese (zh)
Other versions
CN108397556A (en
Inventor
钟平
郭峰
董鸿
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.)
Dianduo Electromechanical Engineering Jiangsu Co ltd
Original Assignee
Dianduo Electromechanical Engineering Jiangsu 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 Dianduo Electromechanical Engineering Jiangsu Co ltd filed Critical Dianduo Electromechanical Engineering Jiangsu Co ltd
Priority to CN201810469328.6A priority Critical patent/CN108397556B/en
Publication of CN108397556A publication Critical patent/CN108397556A/en
Application granted granted Critical
Publication of CN108397556B publication Critical patent/CN108397556B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/224—Details of bearings for the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)
  • Check Valves (AREA)

Abstract

The invention discloses a valve body mechanism, comprising: a valve body; the rubber coating blade is arranged in the valve body; the valve shaft is fixedly connected with the rubber coating blade; the first bearing is arranged at the end part of the valve body and is connected with the valve shaft, and the second bearing is arranged at the other end of the valve body and is connected with the valve shaft; the first valve cover is arranged outside the valve body and connected with the valve body, the first valve cover is connected with the first bearing, the second valve cover is arranged outside the valve body and connected with the valve body, and the second valve cover is connected with the second bearing. The sealing mechanism at the end part of the valve body has good sealing effect, can better protect the valve shaft and reduces the possibility of leakage.

Description

Valve body mechanism
Technical Field
The invention relates to the technical field of valve sealing, in particular to a valve body mechanism.
Background
The valve is an important control pipeline component and has the main functions of adjusting the opening and closing, the flow direction, the pressure and the like of fluid in a pipeline. Valves are a critical part of the whole device and system, particularly in the industries of petroleum, chemical industry and the like, and once failure or medium leakage can cause catastrophic events such as virulent release, explosion and the like, the valves can cause great economic loss and casualties. Therefore, for valves, the choice of a suitable sealing structure is critical.
Disclosure of Invention
The present invention aims to provide a valve body mechanism that solves one or more of the above-mentioned problems of the prior art.
The present invention provides a valve body mechanism, comprising:
A valve body;
the rubber coating blade is arranged in the valve body;
the valve shaft is fixedly connected with the rubber coating blade;
the first bearing is arranged at the end part of the valve body and is connected with the valve shaft, and the second bearing is arranged at the other end of the valve body and is connected with the valve shaft;
The first valve cover is arranged outside the valve body and connected with the valve body, the first valve cover is connected with the first bearing, the second valve cover is arranged outside the valve body and connected with the valve body, and the second valve cover is connected with the second bearing.
In some embodiments, the encapsulated blade has a length a and the valve body has a length D, with length a being greater than length D.
In some embodiments, the valve shaft comprises a first valve shaft fixedly connected to the encapsulation vane and a second valve shaft fixedly connected to the encapsulation vane.
In some embodiments, the encapsulated vane includes a valve plate, a first connector with which the first valve shaft is fixedly connected, and a second connector with which the second valve shaft is fixedly connected;
The first connecting piece is a cylinder, a square through hole is arranged in the middle of the cylinder, a first groove and a second groove are symmetrically arranged on the outer surface of the cylinder, the first groove and the second groove are grooves formed by cutting through the outer surface to the square through hole along the axial direction of the cylinder, the second connecting piece has the same structure as the first connecting piece,
The valve plate is a circular valve plate, a first notch and a second notch are formed in the end portion of the valve plate, the first notch and the second notch are symmetrically arranged about the center of the circle of the valve plate, the first connecting piece is fixedly connected with the first notch of the valve plate, and the second connecting piece is fixedly connected with the second notch of the valve plate;
The upper surface of the valve plate is provided with a first rubber coating layer, the lower surface of the valve plate is provided with a second rubber coating layer, the surface of the first connecting piece is wrapped with a third rubber layer, one end of the first connecting piece, which is far away from the valve plate, is provided with a first annular rubber boss, the surface of the second connecting piece is wrapped with a fourth rubber layer, and one end of the second connecting piece, which is far away from the valve plate, is provided with a second annular rubber boss;
The first bearing is abutted with the third rubber layer, the second bearing is abutted with the fourth rubber layer, the first annular rubber boss is abutted with the valve body, and the second annular rubber boss is abutted with the valve body.
In some embodiments, the first valve cap is connected to the valve body by a bolt or flange and the second valve cap is connected to the valve body by a bolt or flange.
In some embodiments, the first bearing outer sleeve is provided with a first shaft sleeve, the first shaft sleeve outer side is provided with external threads, the first valve cover is provided with internal threads, the first valve cover is connected with the first shaft sleeve through threaded engagement, a first sealing gasket is arranged between the first shaft sleeve and the valve body in an abutting mode, the second bearing outer sleeve is provided with a second bearing sleeve, the second valve cover is provided with external threads, the second valve cover is provided with internal threads, the second valve cover is connected with the second bearing sleeve through threaded engagement, the second bearing sleeve is in abutting mode with the rubber coating blade, and a second sealing gasket is arranged between the second bearing sleeve and the valve body.
In some embodiments, the first valve cap is provided with internal threads, the first bearing is provided with external threads on the outer side, the first valve cap is connected with the first bearing through threaded engagement, a first sealing gasket is arranged between the first bearing and the valve body, the second valve cap is provided with internal threads, the second valve cap is provided with external threads on the outer side, the second valve cap is connected with the second bearing through threaded engagement, and a second sealing gasket is arranged between the second bearing and the valve body.
In some embodiments, the encapsulated vane comprises a valve plate, the valve plate is rectangular, a square through hole is arranged in the middle of the valve plate, the valve shaft penetrates through the square through hole and is connected with the valve body, a first rubber coating layer is arranged on the upper surface of the edge of the valve plate, and a second rubber coating layer is arranged on the lower surface of the edge of the valve plate.
The beneficial effects are that: the sealing mechanism at the end part of the valve body has good sealing effect, can better protect the valve shaft and reduces the possibility of leakage.
Drawings
FIG. 1 is a schematic view of a valve mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of a valve mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic view of an encapsulated blade according to an embodiment of the present invention;
FIG. 4 is a schematic view of a valve plate of an encapsulated vane in accordance with one embodiment of the present invention;
FIG. 5 is a schematic view of a first connector for an encapsulated blade according to an embodiment of the present invention;
FIG. 6 is a schematic view of a valve mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic view of a part of a valve mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic view of an encapsulated blade according to an embodiment of the present invention;
FIG. 9 is a schematic view of an encapsulated blade configuration in accordance with an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1 of the drawings,
A valve body mechanism comprising:
A valve body 20;
The rubber coating blade 10, the rubber coating blade 10 locates in valve block 20;
a valve shaft 40, the valve shaft 40 being fixedly connected with the encapsulated vane 10;
A first bearing 31 and a second bearing 32, the first bearing 31 being provided at an end of the valve body 20 and connected to the valve shaft 40, the second bearing 32 being provided at the other end of the valve body 20 and connected to the valve shaft 40;
A first valve cover 51 and a second valve cover 52, the first valve cover 51 is provided outside the valve body 20 and connected to the valve body 20, the first valve cover 51 is connected to the first bearing 31, the second valve cover 52 is provided outside the valve body 20 and connected to the valve body 20, and the second valve cover 52 is connected to the second bearing 32.
Further, two ends of the rubber coating blade 10 are abutted against the valve body 20, the length of the rubber coating blade 10 is A, the length of the valve body 20 is D, and the length A is larger than the length D.
The rubber bosses at two ends of the rubber coating blade are extruded, so that a first seal is formed between the rubber coating blade and the valve body.
Further, the valve shaft 40 includes a first valve shaft 41 and a second valve shaft 42, the first valve shaft 41 is fixedly connected with the encapsulation blade 10, and the second valve shaft 42 is fixedly connected with the encapsulation blade 10.
As shown in the figure 3 of the drawings,
Further, the encapsulated vane 10 comprises a valve plate 101, a first connecting piece 102 and a second connecting piece 103, wherein the first valve shaft 41 is fixedly connected with the first connecting piece 102, and the second valve shaft 42 is fixedly connected with the second connecting piece 103;
As shown in figure 4 of the drawings,
The first connecting piece 102 is a cylinder, a square through hole 121 is formed in the middle of the cylinder, a first groove 122 and a second groove 123 are formed in the outer surface of the cylinder, the first groove 122 and the second groove 123 are symmetrically formed, the first groove 122 and the second groove 123 are grooves formed by cutting through the outer surface of the cylinder to the square through hole 121 along the axial direction of the cylinder, and the second connecting piece 103 is identical to the first connecting piece 102 in structure.
Wherein, the first valve shaft 41 is inserted into the square through hole 121 and fixedly connected with the first connector 102 by welding or the like; the second valve shaft 42 is also fixedly connected to the second connector 103 in the manner described above.
As shown in figure 5 of the drawings,
The valve plate 101 is a circular valve plate, a first notch 111 and a second notch 112 are arranged at the end part of the valve plate 101, the first notch 111 and the second notch 112 are symmetrically arranged about the center of the valve plate 101, the first connecting piece 102 is fixedly connected with the first notch 111 of the valve plate 101, and the second connecting piece 103 is fixedly connected with the second notch 112 of the valve plate 101;
The first notch 111 of the valve plate 101 is inserted into the first groove 122 and the second groove 123 of the first connecting member 102, and is fixedly connected by welding or the like, and the second connecting member 103 is also fixedly connected with the second notch 112 of the valve plate 101.
The upper surface of the valve plate 101 is provided with a first rubber coating layer 104, the lower surface of the valve plate 101 is provided with a second rubber coating layer 105, the surface of the first connecting piece 102 is wrapped with a third rubber layer 106, one end of the first connecting piece 102, which is far away from the valve plate 101, is provided with a first annular rubber boss 108, the surface of the second connecting piece 103 is wrapped with a fourth rubber layer 107, and one end of the second connecting piece 103, which is far away from the valve plate 101, is provided with a second annular rubber boss 109; wherein the first rubber coating layer 104 and the second rubber coating layer 105 are reinforced and connected by a rubber connector penetrating through a through hole provided in the valve plate 101.
The first bearing 31 is in contact with the third rubber layer 106, the second bearing 32 is in contact with the fourth rubber layer 107, the first annular rubber boss 108 is in contact with the valve body 20, and the second annular rubber boss 109 is in contact with the valve body 20.
The first bearing 31 is abutted against the third rubber layer 106, and the first valve cover 51 is screwed down, so that the first bearing 31 and the third rubber layer 106 are extruded, and a good sealing effect is achieved; the second bearing 32 abuts the fourth rubber layer 107, as well.
The first annular rubber boss 108 is abutted against the valve body 20, and the rubber-coated blade 10 is larger than the valve body 20 in size, so that the first annular rubber boss 108 and the valve body 20 are extruded, and a good sealing effect is obtained; the second annular rubber boss 109 abuts the valve body 20, as well.
Further, the first valve cap 51 is connected to the valve body 20 by a bolt or a flange, and the second valve cap 52 is connected to the valve body 20 by a bolt or a flange.
The valve cover is fixed on the valve body through bolts or flanges, and the bearing and the rubber coating blade are extruded by tightening the bolts or flanges of the valve cover to form a second seal
As shown in the figure 2 of the drawings,
Further, the first shaft sleeve 60 is sleeved outside the first bearing 31, the external thread is arranged outside the first shaft sleeve 60, the first valve cover 51 is provided with the internal thread, the first valve cover 51 is connected with the first shaft sleeve 60 through thread engagement, the first shaft sleeve 60 is abutted against the rubber coating blade 10, the first sealing gasket 61 is arranged between the first shaft sleeve 60 and the valve body 20, the second bearing 32 is sleeved outside the second bearing, the external thread is arranged outside the second bearing, the internal thread is arranged on the second valve cover 52, the second valve cover 52 is connected with the second bearing through thread engagement, and the second bearing sleeve is abutted against the rubber coating blade 10, and the second sealing gasket is arranged between the second bearing sleeve and the valve body 20.
The end part of the valve body is provided with a multiple sealing structure, the shaft sleeve is contacted with the rubber coating blade, and the two ends of the rubber coating blade are extruded due to the fact that the size A of the rubber coating blade is larger than the size D of the valve body, so that a first seal is formed between the rubber coating blade and the valve body; by screwing the valve cover, the valve body, the shaft sleeve and the sealing gasket between the valve body and the shaft sleeve are tightly matched to form a second seal; the internal thread of the valve cover and the external thread of the shaft sleeve form a third seal through the threads between the internal thread of the valve cover and the external thread of the shaft sleeve and the added thread glue; by tightening the valve cap, the bearing and the encapsulated vane are squeezed to form a fourth seal.
As shown in figures 6 and 7 of the drawings,
Further, the first valve cover 51 is provided with an internal thread, the outer side of the first bearing 31 is provided with an external thread, the first valve cover 51 is connected with the first bearing 31 through threaded engagement, a first sealing gasket 61 is arranged between the first bearing 31 and the valve body 20, the second valve cover 52 is provided with an internal thread, the outer side of the second bearing 32 is provided with an external thread, the second valve cover 52 is connected with the second bearing 32 through threaded engagement, and a second sealing gasket is arranged between the second bearing 32 and the valve body 20.
By adopting the design, the metal welding is replaced by adopting the threaded fixation, so that the workload of welding can be reduced, the cost can be saved, and the sealing effect can be improved by simply screwing the valve cover. And the assembly mode is quicker and more convenient.
As shown in figures 8 and 9 of the drawings,
Further, the rubber coating blade 10 comprises a valve plate 101, the valve plate 101 is rectangular, a square through hole 11 is formed in the middle of the valve plate 101, the valve shaft 40 penetrates through the square through hole 11 and is connected with the valve body 20, a first rubber coating layer 104 is arranged on the upper surface of the edge of the valve plate 101, and a second rubber coating layer 105 is arranged on the lower surface of the edge of the valve plate 101.
The rubber coating blade 10 comprises a rectangular valve plate, a plurality of through holes are formed in the edge of the valve plate, a first rubber coating layer 104 is arranged on the upper surface of the edge of the valve plate, a second rubber coating layer 105 is arranged on the lower surface of the edge of the valve plate, and the first rubber coating layer 104 and the second rubber coating layer 105 are connected through reinforcing rubber connectors penetrating through the through holes 12.
The sealing mechanism at the end part of the valve body in the embodiment provided by the invention has good sealing effect, can better protect the valve shaft and reduces the possibility of leakage.
The above description is only of a preferred form of the invention, it being understood that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the inventive concept, which shall be regarded as being within the scope of the invention.

Claims (2)

1. A valve body mechanism, comprising:
A valve body (20);
the rubber coating blade (10), the rubber coating blade (10) is arranged in the valve body (20);
a valve shaft (40), the valve shaft (40) being fixedly connected with the encapsulated vane (10);
a first bearing (31) and a second bearing (32), wherein the first bearing (31) is arranged at the end part of the valve body (20) and is connected with the valve shaft (40), and the second bearing (32) is arranged at the other end of the valve body (20) and is connected with the valve shaft (40);
A first valve cover (51) and a second valve cover (52), wherein the first valve cover (51) is arranged outside the valve body (20) and is connected with the valve body (20), the first valve cover (51) is connected with the first bearing (31), the second valve cover (52) is arranged outside the valve body (20) and is connected with the valve body (20), and the second valve cover (52) is connected with the second bearing (32);
Wherein: the two ends of the rubber coating blade (10) are abutted against the valve body (20), the length of the rubber coating blade (10) is A, the length of the valve body (20) is D, and the length A is larger than the length D; the valve shaft (40) comprises a first valve shaft (41) and a second valve shaft (42), the first valve shaft (41) is fixedly connected with the encapsulation blade (10), and the second valve shaft (42) is fixedly connected with the encapsulation blade (10); the rubber coating blade (10) comprises a valve plate (101), a first connecting piece (102) and a second connecting piece (103), wherein the first valve shaft (41) is fixedly connected with the first connecting piece (102), and the second valve shaft (42) is fixedly connected with the second connecting piece (103);
The first connecting piece (102) is a cylinder, a square through hole (121) is arranged in the middle of the cylinder, a first groove (122) and a second groove (123) are arranged on the outer surface of the cylinder, the first groove (122) and the second groove (123) are symmetrically arranged, the first groove (122) and the second groove (123) are grooves formed by cutting through the outer surface to the square through hole (121) along the axial direction of the cylinder, the second connecting piece (103) has the same structure as the first connecting piece (102),
The valve plate (101) is a round valve plate, a first notch (111) and a second notch (112) are formed in the end portion of the valve plate (101), the first notch (111) and the second notch (112) are symmetrically arranged with respect to the circle center of the valve plate (101), the first connecting piece (102) is fixedly connected with the first notch (111) of the valve plate (101), and the second connecting piece (103) is fixedly connected with the second notch (112) of the valve plate (101);
The novel valve plate is characterized in that a first rubber coating layer (104) is arranged on the upper surface of the valve plate (101), a second rubber coating layer (105) is arranged on the lower surface of the valve plate (101), a third rubber layer (106) is wrapped on the surface of the first connecting piece (102), a first annular rubber boss (108) is arranged at one end, far away from the valve plate (101), of the first connecting piece (102), a fourth rubber layer (107) is wrapped on the surface of the second connecting piece (103), and a second annular rubber boss (109) is arranged at one end, far away from the valve plate (101), of the second connecting piece (103);
The first bearing (31) is abutted against the third rubber layer (106), the second bearing (32) is abutted against the fourth rubber layer (107), the first annular rubber boss (108) is abutted against the valve body (20), and the second annular rubber boss (109) is abutted against the valve body (20);
the first valve cover (51) is connected with the valve body (20) through a bolt or a flange, and the second valve cover (52) is connected with the valve body (20) through a bolt or a flange;
the novel valve is characterized in that a first shaft sleeve (60) is sleeved outside the first bearing (31), external threads are arranged on the outer side of the first shaft sleeve (60), internal threads are arranged on the first valve cover (51), the first valve cover (51) is connected with the first shaft sleeve (60) through threaded engagement, the first shaft sleeve (60) is abutted to the rubber coating blade (10), a first sealing gasket (61) is arranged between the first shaft sleeve (60) and the valve body (20), a second bearing sleeve is sleeved outside the second bearing sleeve, external threads are arranged on the outer side of the second bearing sleeve, internal threads are arranged on the second valve cover (52), the second valve cover (52) is connected with the second bearing sleeve through threaded engagement, and a second sealing gasket is arranged between the second bearing sleeve and the valve body (20).
2. A valve body mechanism, comprising:
A valve body (20);
the rubber coating blade (10), the rubber coating blade (10) is arranged in the valve body (20);
a valve shaft (40), the valve shaft (40) being fixedly connected with the encapsulated vane (10);
a first bearing (31) and a second bearing (32), wherein the first bearing (31) is arranged at the end part of the valve body (20) and is connected with the valve shaft (40), and the second bearing (32) is arranged at the other end of the valve body (20) and is connected with the valve shaft (40);
A first valve cover (51) and a second valve cover (52), wherein the first valve cover (51) is arranged outside the valve body (20) and is connected with the valve body (20), the first valve cover (51) is connected with the first bearing (31), the second valve cover (52) is arranged outside the valve body (20) and is connected with the valve body (20), and the second valve cover (52) is connected with the second bearing (32);
Wherein: the two ends of the rubber coating blade (10) are abutted against the valve body (20), the length of the rubber coating blade (10) is A, the length of the valve body (20) is D, and the length A is larger than the length D; the valve shaft (40) comprises a first valve shaft (41) and a second valve shaft (42), the first valve shaft (41) is fixedly connected with the encapsulation blade (10), and the second valve shaft (42) is fixedly connected with the encapsulation blade (10); the rubber coating blade (10) comprises a valve plate (101), a first connecting piece (102) and a second connecting piece (103), wherein the first valve shaft (41) is fixedly connected with the first connecting piece (102), and the second valve shaft (42) is fixedly connected with the second connecting piece (103);
The first connecting piece (102) is a cylinder, a square through hole (121) is arranged in the middle of the cylinder, a first groove (122) and a second groove (123) are arranged on the outer surface of the cylinder, the first groove (122) and the second groove (123) are symmetrically arranged, the first groove (122) and the second groove (123) are grooves formed by cutting through the outer surface to the square through hole (121) along the axial direction of the cylinder, the second connecting piece (103) has the same structure as the first connecting piece (102),
The valve plate (101) is a round valve plate, a first notch (111) and a second notch (112) are formed in the end portion of the valve plate (101), the first notch (111) and the second notch (112) are symmetrically arranged with respect to the circle center of the valve plate (101), the first connecting piece (102) is fixedly connected with the first notch (111) of the valve plate (101), and the second connecting piece (103) is fixedly connected with the second notch (112) of the valve plate (101);
The novel valve plate is characterized in that a first rubber coating layer (104) is arranged on the upper surface of the valve plate (101), a second rubber coating layer (105) is arranged on the lower surface of the valve plate (101), a third rubber layer (106) is wrapped on the surface of the first connecting piece (102), a first annular rubber boss (108) is arranged at one end, far away from the valve plate (101), of the first connecting piece (102), a fourth rubber layer (107) is wrapped on the surface of the second connecting piece (103), and a second annular rubber boss (109) is arranged at one end, far away from the valve plate (101), of the second connecting piece (103);
The first bearing (31) is abutted against the third rubber layer (106), the second bearing (32) is abutted against the fourth rubber layer (107), the first annular rubber boss (108) is abutted against the valve body (20), and the second annular rubber boss (109) is abutted against the valve body (20);
the first valve cover (51) is connected with the valve body (20) through a bolt or a flange, and the second valve cover (52) is connected with the valve body (20) through a bolt or a flange;
The first valve cover (51) is provided with internal threads, the outer side of the first bearing (31) is provided with external threads, the first valve cover (51) and the first bearing (31) are connected through thread engagement, a first sealing gasket (61) is arranged between the first bearing (31) and the valve body (20), the second valve cover (52) is provided with internal threads, the outer side of the second bearing (32) is provided with external threads, the second valve cover (52) and the second bearing (32) are connected through thread engagement, and a second sealing gasket is arranged between the second bearing (32) and the valve body (20).
CN201810469328.6A 2018-05-16 2018-05-16 Valve body mechanism Active CN108397556B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406441A (en) * 1981-01-14 1983-09-27 Voest-Alpine Aktiengesellschaft Butterfly valve
JPH09296867A (en) * 1996-04-30 1997-11-18 Tomoe Gijutsu Kenkyusho:Kk Shaft seal unit for butterfly
JP2004019784A (en) * 2002-06-17 2004-01-22 Tomoe Tech Res Co Triple eccentricity type butterfly valve
CN201705956U (en) * 2010-06-25 2011-01-12 鞍山亨通阀门有限公司 Slag flushing valve
WO2013008268A1 (en) * 2011-07-11 2013-01-17 三菱電機株式会社 Shaft seal structure for valve
CN105202201A (en) * 2015-10-16 2015-12-30 江苏康创自控工程有限公司 High-sealability dust-proof butterfly valve
CN205090008U (en) * 2015-11-06 2016-03-16 浙江创兴化工设备有限公司 Baffle valve
CN105715806A (en) * 2014-12-01 2016-06-29 天津奇昌阀门制造有限公司 High-precision anti-corrosion rubber sealing butterfly valve
CN208268428U (en) * 2018-05-16 2018-12-21 点夺机电工程江苏有限公司 A kind of sealing mechanism of valve end

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406441A (en) * 1981-01-14 1983-09-27 Voest-Alpine Aktiengesellschaft Butterfly valve
JPH09296867A (en) * 1996-04-30 1997-11-18 Tomoe Gijutsu Kenkyusho:Kk Shaft seal unit for butterfly
JP2004019784A (en) * 2002-06-17 2004-01-22 Tomoe Tech Res Co Triple eccentricity type butterfly valve
CN201705956U (en) * 2010-06-25 2011-01-12 鞍山亨通阀门有限公司 Slag flushing valve
WO2013008268A1 (en) * 2011-07-11 2013-01-17 三菱電機株式会社 Shaft seal structure for valve
CN105715806A (en) * 2014-12-01 2016-06-29 天津奇昌阀门制造有限公司 High-precision anti-corrosion rubber sealing butterfly valve
CN105202201A (en) * 2015-10-16 2015-12-30 江苏康创自控工程有限公司 High-sealability dust-proof butterfly valve
CN205090008U (en) * 2015-11-06 2016-03-16 浙江创兴化工设备有限公司 Baffle valve
CN208268428U (en) * 2018-05-16 2018-12-21 点夺机电工程江苏有限公司 A kind of sealing mechanism of valve end

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