CN110735949A - Full-sealed pneumatic three-way valve - Google Patents

Full-sealed pneumatic three-way valve Download PDF

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Publication number
CN110735949A
CN110735949A CN201911127687.4A CN201911127687A CN110735949A CN 110735949 A CN110735949 A CN 110735949A CN 201911127687 A CN201911127687 A CN 201911127687A CN 110735949 A CN110735949 A CN 110735949A
Authority
CN
China
Prior art keywords
pipeline
valve body
rotating shaft
cylinder
shaft sleeve
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.)
Pending
Application number
CN201911127687.4A
Other languages
Chinese (zh)
Inventor
温晓彤
温宏昕
关继胜
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.)
SHENYANG GD ELECTRIC EQUIPMENT Co Ltd
Original Assignee
SHENYANG GD ELECTRIC EQUIPMENT 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 SHENYANG GD ELECTRIC EQUIPMENT Co Ltd filed Critical SHENYANG GD ELECTRIC EQUIPMENT Co Ltd
Priority to CN201911127687.4A priority Critical patent/CN110735949A/en
Publication of CN110735949A publication Critical patent/CN110735949A/en
Pending legal-status Critical Current

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    • 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • 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
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

The invention relates to a fully-sealed pneumatic three-way valve, which comprises a th pipeline, a second pipeline, a valve body and a third pipeline, wherein the th pipeline and the second pipeline are communicated with a th end of the valve body, the other th end of the valve body is communicated with the third pipeline, a cylinder seat for fixing a cylinder is connected with the cylinder, the cylinder seat is fixed with the th pipeline or the second pipeline, an expansion rod of the cylinder is hinged with a end of a crank, the other end of the crank is connected with a rotating shaft, the bearing seat is positioned outside the valve body, the end of the rotating shaft is inserted into the bearing seat, the other end of the rotating shaft passes through the valve body, the end of the rotating shaft is limited inside the valve body, the rotating shaft positioned inside the valve body is connected with a plug, the surface of the rotating shaft, which is tightly attached to the inner wall of the valve body, is larger than a pipeline port of a th pipeline and a pipeline port of the second pipeline, and a limit stop iron is arranged on the inner.

Description

Full-sealed pneumatic three-way valve
Technical Field
The invention belongs to the technical field of valves for controlling discharge of powder or mixed materials, and particularly relates to a fully-sealed pneumatic three-way valve.
Background
At present, three-way valves in China are various in general, including pneumatic three-way valves and electro-hydraulic three-way valves, but are rarely used in powder conveying because common three-way valves are difficult to meet normal use under the condition of wind pressure, and the requirement on the sealing performance of the valve is high.
In the aspect of three-way conduction for conveying powder in China, the method gradually develops to the method of adopting a three-way valve to carry out exchange conduction by adopting two or more pipeline butterfly valves to carry out exchange conduction control so as to cut off or select powder conveying in a conduction pipeline, thereby achieving the purpose of opening and closing or selectively adjusting a conveying pipeline.
Therefore, there is a need for pneumatic three-way valves that are economical and practical and can achieve a full seal.
Disclosure of Invention
Object of the Invention
In order to solve the problem of sealing powder with wind pressure during conveying and the switching problem of interchange conduction of the three-way valve, the invention provides full-sealed pneumatic three-way valves.
Technical scheme
full-sealed pneumatic three-way valve, including pipeline, the second pipeline, valve body and third pipeline, 0 th pipeline and second pipeline and valve body 1 end intercommunication, the valve body another 2 end and third pipeline intercommunication, a cylinder block and a cylinder for fixing the cylinder are connected, the cylinder block is fixed with 3 th pipeline or second pipeline, the telescopic link of cylinder and the end of crank are articulated, another end of crank is connected with the axis of rotation, the bearing frame is located outside the valve body, the bearing frame is fixed on th pipeline and second pipeline, the distance from the bearing frame to th pipeline and second pipeline equals, the end of axis of rotation inserts the bearing frame, another end of axis of rotation has passed the valve body, the end of axis of rotation that inserts the valve body limits inside the valve body, the axis of rotation that is located the valve body inboard is connected with the shutoff, the valve body inner wall that the axis of rotation passed is hugged closely with the shutoff, the face that the shutoff hugged closely the valve body inner wall is greater than the pipeline mouth of pipeline and the pipeline mouth of second pipeline.
cylinder shafts penetrate through the side wall of the cylinder seat, the cylinder shaft connects the cylinder seat with the main body of the cylinder at . the plug comprises a shaft sleeve, a connecting plate, a plug piece, a shaft sleeve bottom plate and a shaft sleeve spring, the rotating shaft is connected with the shaft sleeve in the valve body through the connecting plate, the end of the shaft sleeve is connected with the shaft sleeve bottom plate, the shaft sleeve bottom plate is positioned at the side close to the third pipeline, the shaft sleeve spring is arranged in the shaft sleeve, the plug piece extruding the shaft sleeve spring is inserted at the other end of the shaft sleeve, and the surface of the plug piece tightly attached to the inner wall of the valve body is larger than the pipeline port of the .
The tip that the axis of rotation is located the valve body is big head end, and the tip that the axis of rotation inserted the bearing frame is little head end, and the radius size of axis of rotation cross section diminishes from big head end to little head end step by step, and the axis of rotation is equipped with the recess that is used for connecting the crank, the crank be equipped with axis of rotation recess assorted recess, the recess of axis of rotation and the recess of crank are through inserting the key and connect axis of rotation and crank at plays.
The outer side of the rotating shaft, which is positioned on the valve body, is sleeved with a tension spring and a nut, the nut is fixed on the rotating shaft through the external thread of the rotating shaft, and the nut and the valve body compress the tension spring tightly.
And a washer is arranged between the tensioning spring and the nut.
The connecting plate is provided with a reinforcing plate, and two ends of the connecting plate are provided with semicircular grooves connected with the shaft sleeve and the rotating shaft.
The crank is bent.
And the joint of the valve body and the outer ring of the third pipeline is respectively provided with a matched groove, and a sealing rubber strip is arranged in each groove.
The whole shape of the section of the sealing rubber strip is fan-shaped, three cavities are arranged inside the sealing rubber strip and are positioned on the left side, the right side and the lower side, vertical reinforcing ribs are arranged in the middle of the cavities on the left side and the right side, and the lower ends of the reinforcing ribs are separated towards the two sides to form cavities on the lower side.
The advantages and effects are as follows:
the three-way valve has the advantages of good sealing performance, smooth three-way switching, simple operation, economy, practicality, stable work, low failure rate and long service life, and is very environment-friendly in the using process.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a front view taken along the valve body;
FIG. 3 is a front view of the bearing housing;
FIG. 4 is a schematic view of the connection of the cylinder, cylinder block, crank and rotating shaft;
FIG. 5 is a schematic view of a rotating shaft;
FIG. 6 is a cross-sectional view of a groove of a rotating shaft;
FIG. 7 is a schematic view of a connection plate;
FIG. 8 is a schematic view of the crank and pivot shaft connection;
FIG. 9 is a schematic view of the connection of the locking piece, the bushing and the bushing spring;
FIG. 10 is a perspective view of a cylinder block;
FIG. 11 is a view of the cylinder block being secured to either the th tube or the second tube;
FIG. 12 is a schematic view of a joint strip;
description of reference numerals:
1. pipeline, 2, second pipeline, 3, bearing seat, 4, cylinder, 5, cylinder seat, 6, crank, 7, tension spring, 8, valve body, 9, plug, 10, shaft sleeve, 11, shaft sleeve spring, 12, rotation shaft, 13, sealing rubber strip, 14, connecting plate, 15, limiting stop iron, 16, third pipeline, 17, shaft sleeve bottom plate, 18, reinforcing plate, 19, cylinder shaft, 20, nut, 21 and gasket.
Detailed Description
The invention is further described with reference to the following drawings:
as shown in fig. 1-12, full-sealed pneumatic three-way valve includes pipeline 1, second pipeline 2, valve body 8 and third pipeline 16, th pipeline 1 and second pipeline 2 are communicated with valve body 8 , th pipeline 1 and second pipeline 2 are welded to th end of valve body 8, th end of valve body 8 is communicated with third pipeline 16, 825 th end of valve body 8 is fixed to third pipeline 16 by bolts, cylinder seat 5 and cylinder 4 for fixing cylinder 4 are connected, manufacturer of cylinder 4 is Ningbo special pneumatic complete equipment limited company, model number of cylinder 4 is SC-63X200, cylinder seat 5 is fixed to th pipeline 1 or second pipeline 2, telescopic rod of cylinder 4 is hinged to th end of crank 6, th end of crank 6 is connected to rotating shaft 12, bearing seat 3 is located outside valve body 8, rotating shaft 3 is fixed to th pipeline 1 and second pipeline 2, connecting plate is inserted into the second pipeline 2 to connect with valve body 587, connecting plate of valve body 3, connecting plate is inserted into connecting plate of valve body 8, connecting plate 3 is inserted into valve body 16, connecting plate 3, connecting plate for limiting inner wall of valve body, rotating shaft 3 is inserted into connecting plate 3, rotating shaft 3 connecting plate connecting the valve body 3, rotating shaft 3 connecting plate connecting the valve body 14 connecting the valve body, rotating shaft 3 connecting plate connecting the valve body connecting plate connecting the valve body, rotating shaft connecting plate connecting the valve body connecting plate connecting the valve body, rotating shaft connecting plate connecting the valve body connecting plate.
cylinder shafts 19 penetrate through the side wall of the cylinder seat 5, the cylinder shafts 19 connect the cylinder seat 5 and the main body of the cylinder 4 to , and the cylinder shafts 19 are used for adjusting the position of the cylinder 4.
The plug comprises a shaft sleeve 10, a connecting plate 14, a plug sheet 9, a shaft sleeve bottom plate 17 and a shaft sleeve spring 11, wherein a rotating shaft 12 and the shaft sleeve 10 in a valve body 8 are welded at through the connecting plate 14, the end of the shaft sleeve 10 is connected with the shaft sleeve bottom plate 17, the shaft sleeve bottom plate 17 is welded at the bottom of the shaft sleeve 10, the shaft sleeve bottom plate 17 is positioned at the side close to a third pipeline 16, the shaft sleeve spring 11 is arranged in the shaft sleeve 10, the shaft sleeve spring 11 is welded on the shaft sleeve bottom plate 17, a plug sheet 9 for extruding the shaft sleeve spring 11 is inserted at the other end of the shaft sleeve 10, the shaft sleeve spring 11 is used for tightly attaching the plug sheet 9 to the inner wall of the valve body 8, the inner wall of the valve body 8 is a polished metal wall, the plug sheet 9 is a polished metal sheet, the surface of the plug sheet 9 tightly attached to the inner wall of the valve body 8 is larger than the pipeline opening of a pipeline 1 and the pipeline opening of a second pipeline 2, the plug sheet is welded by a block and a sheet.
The tip that axis of rotation 12 is located the valve body 8 is big end, and the tip that axis of rotation 12 inserts bearing frame 3 is little end, and the radius size of axis of rotation 12 cross section diminishes progressively from big end to little end step by step, and axis of rotation 12 is equipped with the recess that is used for connecting crank 6, crank 6 be equipped with axis of rotation 12 recess assorted recess, the recess of axis of rotation 12 and the recess of crank 6 are through inserting the key with axis of rotation 12 and crank 6 connection play.
The outer side of the valve body 8 on the rotating shaft 12 is sleeved with a tensioning spring 7 and a nut 20, the nut 20 is fixed on the rotating shaft 12 through the external thread of the rotating shaft 12, the tensioning spring 7 is tightly pressed by the nut 20 and the valve body 8, and the tensioning spring 7 is used for tensioning the rotating shaft 12, so that the plug piece 9 can be tightly attached to the inner wall of the valve body 8.
A washer 21 is arranged between the tension spring 7 and the nut 20, and the washer 21 is used for fixing with the tension spring 7.
The connecting plate 14 is provided with a reinforcing plate 18, two ends of the connecting plate 14 are provided with semicircular grooves connected with the shaft sleeve 10 and the rotating shaft 12, and the reinforcing plate 18 is used for increasing the stability of the connecting plate 14.
The crank 6 is curved.
The outer ring joints of the valve body 8 and the third pipeline 16 are respectively provided with a matched groove, a sealing rubber strip 13 is arranged in the groove, and the sealing rubber strip 13 is used for better sealing the valve body 8 and the third pipeline 16 and preventing fine powder from being scattered from the space between the valve body 8 and the third pipeline 16 under the action of high pressure.
The whole shape of joint strip 13 cross-section is fan-shaped like, and joint strip 13 is inside to be equipped with three cavity, and the cavity is located left and right sides and downside, and the cavity intermediate position of the left and right sides is equipped with vertical strengthening rib, and the strengthening rib is in order to reduce joint strip 13 deformation at the extruded in-process, guarantees sealedly, and joint strip 13 shape, the strengthening rib lower extreme is separately to both sides, has formed the cavity of downside.
When the fully-sealed pneumatic three-way valve works, the blocking piece 9 covers the th pipeline 1 opening, powder with air pressure is conveyed from the third pipeline 16 opening, the powder can only be blown out from the second pipeline 2 opening, pipeline switching is needed when a specified amount of powder is conveyed, when the pipelines are switched, the air cylinder 4 is started, the telescopic rod of the air cylinder 4 pushes the crank 6, the crank 6 drives the rotating shaft 12 end to rotate, the other end of the rotating shaft 12 drives the blocking piece 9 in the shaft sleeve 10 to rotate through the connecting plate 14, the blocking piece 9 rotates from the th pipeline 1 opening to the second pipeline 2 opening, the position of the connecting plate 14 is limited through the limiting blocking iron 15, the blocking piece 9 can cover the opening of the second pipeline 2, at the moment, the powder can only be blown out from the th pipeline 1 opening, switching and conducting from the second pipeline 2 to the th pipeline 1 are realized, and the rest on, and switching and conducting from the th pipeline 1 to the second pipeline 2 can also be realized.

Claims (10)

  1. The utility model provides a kind of totally enclosed pneumatic three-way valve, a serial communication port, including 829 4 pipeline (1), second pipeline (2), valve body (8) and third pipeline (16), th pipeline (1) and second pipeline (2) and valve body (8) end intercommunication, valve body (8) in addition 4832 end and third pipeline (16) intercommunication, cylinder block (5) and cylinder (4) for fixed cylinder (4) are connected, cylinder block (5) are fixed with pipeline (1) or second pipeline (2), the telescopic link of cylinder (4) and the end of rocking handle (6) are articulated, another end and rotation axis (12) of rocking handle (6) are connected in addition, bearing frame (3) are located outside valve body (8), bearing frame (3) are fixed on pipeline (1) and second pipeline (2), rotation axis (3) hug closely to rotation axis (1) and second pipeline (2) the distance of rotation axis (12) is equal, the inboard shutoff pipeline (2) of valve body (8) end (5398) is inserted to valve body (3), the shutoff valve body (8) inner wall (5398) inner wall (9) of the inner side restriction pipeline (12) that the inner wall (12) inserted in addition, the valve body (8) and the shutoff valve body (8) are connected with the rotation axis (8) of rotation axis (8), the rotation axis (9) of rotating shaft (8) and the rotation axis (8) of rotating shaft (.
  2. 2. The fully sealed pneumatic three-way valve according to claim 1, wherein cylinder shafts (19) pass through the side wall of the cylinder seat (5), and the cylinder shafts (19) connect the cylinder seat (5) and the main body of the cylinder (4) at .
  3. 3. The fully-sealed pneumatic three-way valve according to claim 1, characterized in that the plug comprises a shaft sleeve (10), a connecting plate (14), a plug (9), a shaft sleeve bottom plate (17) and a shaft sleeve spring (11), the rotating shaft (12) is connected with the shaft sleeve (10) in the valve body (8) through the connecting plate (14), the end of the shaft sleeve (10) is connected with the shaft sleeve bottom plate (17), the shaft sleeve bottom plate (17) is positioned at the side close to the third pipeline (16), the shaft sleeve spring (11) is arranged in the shaft sleeve (10), the plug (9) extruding the shaft sleeve spring (11) is inserted at the other end of the shaft sleeve (10), and the surface of the plug (9) tightly attached to the inner wall of the valve body (8) is larger than the pipeline port of the pipeline (1) and the pipeline port of the second pipeline (2).
  4. 4. A fully sealed pneumatic three-way valve according to claim 3, characterised in that: the connecting plate (14) is provided with a reinforcing plate (18), and two ends of the connecting plate (14) are provided with semicircular grooves connected with the shaft sleeve (10) and the rotating shaft (12).
  5. 5. The fully-sealed pneumatic three-way valve according to claim 1 is characterized in that the end part of the rotating shaft (12) positioned in the valve body (8) is a large end, the end part of the rotating shaft (12) inserted into the bearing seat (3) is a small end, the radius of the cross section of the rotating shaft (12) is gradually reduced from the large end to the small end, the rotating shaft (12) is provided with a groove for connecting the crank (6), the crank (6) is provided with a groove matched with the groove of the rotating shaft (12), and the groove of the rotating shaft (12) and the groove of the crank (6) connect the rotating shaft (12) and the crank (6) together at through an inserted key.
  6. 6. The fully sealed pneumatic three-way valve according to claim 5, wherein: the outer side of the rotating shaft (12) located on the valve body (8) is sleeved with a tensioning spring (7) and a nut (20), the nut (20) is fixed on the rotating shaft (12) through the external thread of the rotating shaft (12), and the tensioning spring (7) is compressed by the nut (20) and the valve body (8).
  7. 7. The fully sealed pneumatic three-way valve according to claim 6, wherein: and a washer (21) is arranged between the tension spring (7) and the nut (20).
  8. 8. The fully sealed pneumatic three-way valve according to claim 1, wherein: the crank (6) is bent.
  9. 9. The fully sealed pneumatic three-way valve according to claim 1, wherein: and the joint of the valve body (8) and the outer ring of the third pipeline (16) is respectively provided with a matched groove, and a sealing rubber strip (13) is arranged in each groove.
  10. 10. A fully sealed pneumatic three-way valve according to claim 9, characterised in that: the integral shape of the cross section of the sealing rubber strip (13) is fan-shaped, three cavities are arranged inside the sealing rubber strip (13), the cavities are located on the left side, the right side and the lower side, vertical reinforcing ribs are arranged in the middle of the cavities on the left side and the right side, the lower ends of the reinforcing ribs are separated towards two sides, and the cavities on the lower side are formed.
CN201911127687.4A 2019-11-18 2019-11-18 Full-sealed pneumatic three-way valve Pending CN110735949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911127687.4A CN110735949A (en) 2019-11-18 2019-11-18 Full-sealed pneumatic three-way valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911127687.4A CN110735949A (en) 2019-11-18 2019-11-18 Full-sealed pneumatic three-way valve

Publications (1)

Publication Number Publication Date
CN110735949A true CN110735949A (en) 2020-01-31

Family

ID=69273033

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911127687.4A Pending CN110735949A (en) 2019-11-18 2019-11-18 Full-sealed pneumatic three-way valve

Country Status (1)

Country Link
CN (1) CN110735949A (en)

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