CN105571787B - A kind of port sealing mechanism of PE ball valves - Google Patents

A kind of port sealing mechanism of PE ball valves Download PDF

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Publication number
CN105571787B
CN105571787B CN201510976293.1A CN201510976293A CN105571787B CN 105571787 B CN105571787 B CN 105571787B CN 201510976293 A CN201510976293 A CN 201510976293A CN 105571787 B CN105571787 B CN 105571787B
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CN
China
Prior art keywords
end cap
cover body
end cover
plate
location
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Expired - Fee Related
Application number
CN201510976293.1A
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Chinese (zh)
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CN105571787A (en
Inventor
刘钢海
王铁苗
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China Jiliang University
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China Jiliang University
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Priority to CN201510976293.1A priority Critical patent/CN105571787B/en
Publication of CN105571787A publication Critical patent/CN105571787A/en
Application granted granted Critical
Publication of CN105571787B publication Critical patent/CN105571787B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/022Test plugs for closing off the end of a pipe

Abstract

The invention discloses a kind of port sealing mechanism of PE ball valves, including end cap module, end cap locating module and drive module, described end cap module includes end cover body, the end cap location-plate fixed with end cover body afterbody, is set in the extruding sleeve that can be slided in end cover body along end cover body, is set in end cover body and with extruding the sleeve location-plate that sleeve afterbody is fixed and the stopping mechanism being arranged in end cover body;Sealing ring is also arranged with described end cover body, end cover body front end side wall is provided with the spacing preiection of sealing ring, and sealing ring is spacing between spacing preiection and extruding barrel forward end;Through end cover body and end cap location-plate provided with least one test stomata.The present invention proposes that a kind of ball valve end face does not stress, convenient replacing, will not make the port sealing mechanism of the clamped deformation of ball valve and the PE ball valves with automatic stopping function to solve the problem of clamping of current ball valve is inconvenient, ball valve is easily deformed influence measuring accuracy.

Description

A kind of port sealing mechanism of PE ball valves
Technical field
The present invention relates to ball valve air tightness test machine field, more particularly to a kind of port sealing mechanism of PE ball valves.
Background technology
Ball valve is to make opening and closing element with the spheroid with manhole, and spheroid is rotated with valve rod, to realize the valve of switching motion. Ball valve is mainly used as cut-out, distribution and the flow direction for changing medium.
Industrial polythene PE ball valve is the important control unit of PE pipe networks, therefore is required using preceding using compressed gas as medium Carry out experiments of sealing performance.When prior art is tested ball valve, the outer of ball valve two ends is generally placed in using sealing gasket or sealing ring Portion, while ball valve two ends are clamped in force application apparatus such as cylinder or jack, so that sealing gasket or sealing ring and ball valve two End forms sealing, and the ball valve after whole sealing is immersed in the water, then examines its sealing toward compressed gas is passed through inside ball valve Energy.
Above-mentioned test method has the disadvantages that:1st, operating process is complicated, and its frame heavier-weight need to be by external equipment Frame is immersed in the water, and the installation of ball valve is also more bothered;2nd, pressing plate is pushed so as to close to ball valve progress using jack Envelope and sealing ring are placed in outside ball valve two ends, and when being sealed with cylinder clamping at ball valve two ends, the dynamics of both is all It is more difficult to control, if the power that pushes or clamps is inadequate, pressing plate and the sealing of ball valve end may be made not firm, so as to influence to try The accuracy tested, brings the erroneous judgement in quality, if the power for pushing or clamping is excessive, ball valve can be made to deform, cause ball valve End face out-of-flatness, so that can not form sealing between ball valve and pressing plate, brings the erroneous judgement in quality, in addition, pushing or pressing from both sides If tight power is excessive, ball valve also can be directly damaged.
The content of the invention
The present invention proposes to solve the problem of current ball valve clamping is inconvenient, ball valve is easily deformed influence measuring accuracy A kind of ball valve end face does not stress, convenient replacing, will not make the clamped deformation of ball valve and the PE ball valves with automatic stopping function Port sealing mechanism.
To achieve these goals, the present invention uses following technical scheme:A kind of port sealing mechanism of PE ball valves, including End cap module, end cap locating module and drive module, described end cap module include end cover body, fixed with end cover body afterbody End cap location-plate, be set in the extruding sleeve that can be slided in end cover body along end cover body, be set in end cover body and with The extruding sleeve afterbody sleeve location-plate fixed and the stopping mechanism being arranged in end cover body;In described end cover body also Sealing ring is arranged with, end cover body front end side wall is provided with the spacing preiection of sealing ring, and sealing ring is spacing in spacing preiection and crowded Between pressure barrel forward end;Through end cover body and end cap location-plate provided with least one test stomata;Described stopping mechanism bag Include and offer work on a retreat stop block, a contiguous block, a piston and a returning spring, described end cover body front end face Slideway is filled in, described piston is slidably disposed in piston slideway;Retreat stop block is offered on described end cover body side wall The perforate for allowing retreat stop block to pass through is offered on storage tank, described extruding sleeve, described retreat stop block can be made in storage tank Move up and down, and the storage tank of retreat stop block is connected with the piston slideway of piston;Provided with two fixed pulleys inside described retreat stop block; Described contiguous block one end is connected with piston, and the other end is in the knee to end cap central axis bending, and described knee can be stretched into Between two fixed pulleys of retreat stop block, driving retreat stop block moves up and down;One is also arranged with described contiguous block is used to live Get back into multiple returning spring;Described end cap locating module includes end cap installing plate and drive connection block, the end cap module End cap location-plate is bolted on end cap installing plate, with the test stomata of end cap location-plate on described end cap installing plate Correspondence position also is provided with testing stomata;Bolt is played in described drive connection block front end provided with some plugs, and the plug beats the light of bolt Sliding section is set through end cap installing plate, and end cap installing plate is limited in plug and beats bolt smooth section, can be beaten bolt smooth section in plug and be slided, The cap portion that plug plays bolt is corresponding with the both sides of sleeve location-plate, can drive sleeve location-plate move forward, after described drive connection block Side is connected with drive module.
Preferably, described spacing preiection is identical provided with gradient with the face that extruding barrel forward end is spacing for sealing ring Chamfering.
Preferably, described end cap location-plate is in " work " font, surface both sides are provided with convex after described sleeve location-plate Block, projection is fastened in the breach of end cap location-plate both sides, and the cap portion that described plug plays bolt is correspondingly arranged with bump position.
Preferably, a bolt positioning hole is respectively provided with described four angles of end cap location-plate, described bolt positioning Hole is the aircraft hole of Quick Release.
Preferably, described end cover body is provided with two stopping mechanisms, two stopping mechanisms are along end cap central axis It is symmetrical arranged.
Preferably, described drive module is cylinder, the cylinder axis of cylinder are connected with drive connection block.
Preferably, described end cap installing plate docks the test stomata periphery of side with end cap location-plate provided with a circle sealing The locating slot of ring, locating slot is coaxially disposed with test stomata, and sealing ring is provided with locating slot.
Therefore, the present invention has the advantages that:1st, using the interior end cover designs for stretching formula, ball valve end face does not stress, carried High measuring accuracy;2nd, will not be convenient to insert with wall friction in ball valve when stretching mobile in end cap using extruding expansion sealing ring sealing Pull out;3rd, provided with stopping mechanism, prevent measuring air pressure excessive, end cap is retreated, influence measuring accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of end cap module of the present invention.
Fig. 3 is the structural representation of another angle of end cap module of the present invention.
Fig. 4 is the top view of end cap module of the present invention.
Fig. 5 is the sectional view of A-A in Fig. 4.
Fig. 6 is the front view of end cap module of the present invention.
Fig. 7 is the sectional view of B-B in Fig. 6.
Fig. 8 is Fig. 6 right view.
Fig. 9 is Fig. 6 left view.
Figure 10 is the structural representation of end cap module use state of the present invention.
Figure 11 is the structural representation of end cap locating module of the present invention.
Figure 12 is the structural representation of another angle of end cap locating module of the present invention.
1a:Drive module;1b:End cap locating module;1c:End cap module;1:End cover body;2:Extrude sleeve;3:Sleeve Location-plate;4:End cap location-plate;5:Bolt positioning hole;6:Perforate;7:Retreat stop block;8:Sealing ring;9:Piston slideway;10:Test Stomata;11:Projection;12:Spacing preiection;13:Stopping mechanism;14:Piston;15:Contiguous block;16:Returning spring;17:Knee; 18:Fixed pulley;19:Storage tank;20:Baffle plate;21:Ball valve;22:End cap installing plate;23:Plug plays bolt;24:Drive connection block; 25:Cylinder;26:Locating slot.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of port sealing mechanism of PE ball valves, as shown in Figures 1 to 9, including end cap module 1c, end cap locating module 1b Include the end cover body 1 of a cylindrical shape with drive module 1a, described end cap module 1c, fixed with the afterbody of end cover body 1 End cap location-plate 4, be set in end cover body 1 the extruding sleeve 2 that can be slided along end cover body 1, be set in end cover body 1 And with extruding the sleeve location-plate 3 that the afterbody of sleeve 2 is fixed and two stopping mechanisms 13 being arranged in end cover body 1;Described O-ring seal 8 is also arranged with end cover body 1, the front end side wall of end cover body 1 is provided with the spacing preiection 12 of sealing ring 8, sealing Enclose 8 spacing between spacing preiection 12 and extruding sleeve 2 front end, described spacing preiection 12 and extruding sleeve 2 front end is used for close The spacing face of seal 8 is provided with the chamfering for being designed with 45 degree of gradients;Through end cover body 1 and end cap location-plate 4 provided with a survey Gas testing hole 10.
Described end cap location-plate 4 is in " work " font, and surface both sides are provided with projection 11 after described sleeve location-plate 3, convex Block 11 is fastened in the breach of end cap location-plate both sides, can prevent extruding sleeve 2 from moving forward and backward crush seal along end cover body 1 When enclosing 8, rotate.Described plug beats the cap portion of bolt 23 and the position of projection 11 is correspondingly arranged, and projection 11 can be promoted to move forward, And then promote extruding sleeve 2 to move forward, crush seal circle 8.
Two described stopping mechanisms 13 are set along end cap central axisymmetrical, and each stopping mechanism 13 is square including one Retreat stop block 7, a contiguous block 15, a piston 14 and a returning spring 16, open up on the described front end face of end cover body 1 There is piston slideway 9, described piston 14 is slidably disposed in piston slideway 9;Offered on the described side wall of end cover body 1 The perforate 6 for allowing retreat stop block 7 to pass through, described retreat stop block 7 are offered on the storage tank 19 of retreat stop block 7, described extruding sleeve 2 It can be moved up and down in storage tank 19, and the storage tank 19 of retreat stop block 7 is connected with the piston slideway 9 of piston 14;Described stops The inside of block 7 is moved back provided with two fixed pulleys 18;Described one end of contiguous block 15 is connected with piston 14, and the other end is in end cap central axle The knee 17 of line bending, described knee 17 can be stretched between two fixed pulleys 18 of retreat stop block 7, above and below the driving work of retreat stop block 7 It is mobile, when piston 14 is retreated, drive contiguous block 15 to retreat, knee of the fixed pulley 18 in retreat stop block 7 along the rear side of contiguous block 15 17 are rolled, and driving retreat stop block 7 is moved up;On the contrary, piston 14 moves forward, contiguous block 15 is driven to move forward, the edge of fixed pulley 18 in retreat stop block 7 The knee 17 for the rear side of contiguous block 15 is rolled, and driving retreat stop block 7 is moved down;One is also arranged with described contiguous block 15 is used to live The returning spring 16 that plug 14 is replied.
A bolt positioning hole 5 is respectively provided with described 4 four angles of end cap location-plate, described bolt positioning hole 5 is just The aircraft hole installed in bolt.
Described end cap locating module 1b includes end cap installing plate 22 and drive connection block 24, the end of the end cap module 1c Lid location-plate 4 is bolted on end cap installing plate 22, the test on described end cap installing plate 22 with end cap location-plate 4 The correspondence position of stomata 10 also is provided with testing stomata 10, and described end cap installing plate 22 docks the test gas of side with end cap location-plate 4 Locating slot 26 of the periphery of hole 10 provided with a circle sealing ring, locating slot 26 is coaxially disposed with test stomata 10, is provided with locating slot 26 Sealing ring;Bolt 23 is played in the described front end of drive connection block 24 provided with some plugs, and the smooth section for playing bolt 23 of filling in is through end Lid installing plate 22 is set, and end cap installing plate 22 is limited in plug and beats the smooth section of bolt 23, can be beaten the smooth section of bolt 23 in plug and be slided, plug Beat bolt 23 cap portion it is corresponding with the both sides of sleeve location-plate 3, can drive sleeve location-plate 3 move forward, described drive connection block 24 rear sides are connected with drive module 1a.
In this way, whole end cap module 1c is just Quick Release end cap, the fixation spiral shell at 4 four angles of end cap location-plate only need to be unscrewed Bolt, whole end cap module 1c can just disassemble replacing by aircraft hole, as shown in Fig. 2 and due to the He of end cap installing plate 22 The interface of end cap location-plate 4 can ensure that Quick Release end cap tests the sealing property of stomata 10 provided with sealing ring mechanism.
It is additionally provided with the middle of the baffle plate 20 for the retaining of end cover body 1, baffle plate 20 and offers on front side of described end cap module 1c The perforate for allowing end cover body 1 to pass through.
In use, cylinder 25 drives whole end cap locating module 1b and end cap module 1c to move, due to end cap module 1c's Sealing ring 8 is provided between spacing preiection 12 and extruding sleeve 2, now, will not be slided relatively between end cover body 1 and extruding sleeve 2 It is dynamic.After end cover body 1 stretches into one end of ball valve 21, the both sides of end cap installing plate 22 are stopped by frame, stop reach, drive module 1a beats the projection 11 that bolt 23 continues to press on the both sides of 2 rear side sleeve location-plate of extruding sleeve 3 by plug, before extruding sleeve 2 continues Move, crush seal circle 8, the expanding extruding of sealing ring 8 realizes sealing, as shown in Figure 10 in the inwall of ball valve 21;By in end cover The compression of piston 14 in ventilation pressurization in the test stomata 10 in portion, past ball valve 21, at any time air pressure increase, end cover body 1 is retreated, band Dynamic contiguous block 15 is retreated, and knee 17 of the fixed pulley 18 in retreat stop block 7 along the rear side of contiguous block 15 is rolled, on driving retreat stop block 7 Move, be limited on the baffle plate 20 of test equipment, prevent whole end cover from being increased by close beta air pressure and retreated, influence test Precision.After test terminates, air pressure inside is excluded out of test stomata 10, and air pressure reduces in ball valve 21, and piston 14 is due to replying The effect of spring 16, replys reach, drives contiguous block 15 to move forward, and the fixed pulley 18 in retreat stop block 7 is along the rear side of contiguous block 15 Knee 17 is rolled, and driving retreat stop block 7 is moved down, and is lifted restrictions, cylinder 25 bounces back, pulling end cover module 1c and end cap locating module 1b Retreat, stop pushing projection 11 while plug plays bolt 23, sealing ring 8, which is replied, to be reduced, and stops the extruding inwall of ball valve 21, end cover body 1 removes out of ball valve 21 end face, that is, completes the test of a ball valve 21.

Claims (8)

1. a kind of port sealing mechanism of PE ball valves, including end cap module(1c), end cap locating module(1b)And drive module (1a), described end cap module(1c)Including end cover body(1)With end cover body(1)The end cap location-plate that afterbody is fixed(4)、 It is set in end cover body(1)On can be along end cover body(1)The extruding sleeve of slip(2), be set in end cover body(1)Above and with squeezing Gland cylinder(2)The sleeve location-plate that afterbody is fixed(3)And it is arranged on end cover body(1)Interior stopping mechanism(13);Described end Lid main body(1)On be also arranged with sealing ring(8), end cover body(1)Front end side wall is provided with sealing ring(8)Spacing preiection (12), sealing ring(8)It is spacing in spacing preiection(12)With extruding sleeve(2)Between front end;Through end cover body(1)It is fixed with end cap Position plate(4)Provided with least one test stomata(10), it is characterised in that:Described stopping mechanism(13)Including a retreat stop block (7), a contiguous block(15), a piston(14)With a returning spring(16), described end cover body(1)Opened on front end face Provided with piston slideway(9), described piston(14)It is slidably disposed on piston slideway(9)It is interior;Described end cover body(1)Side Retreat stop block is offered on wall(7)Storage tank(19), described extruding sleeve(2)On offer permission retreat stop block(7)Pass through Perforate(6), described retreat stop block(7)Can be in storage tank(19)Inside move up and down, and retreat stop block(7)Storage tank(19)With work Plug(14)Piston slideway(9)Connection;Described retreat stop block(7)Inside is provided with two fixed pulleys(18);Described contiguous block (15)One end and piston(14)It is connected, the other end is in the knee to end cap central axis bending(17), described knee(17)Can Stretch into retreat stop block(7)Two fixed pulleys(18)Between, drive retreat stop block(7)Move up and down;Described contiguous block(15)On Also being arranged with one is used for piston(14)The returning spring of reply(16);
Described end cap locating module(1b)Including end cap installing plate(22)With drive connection block(24), the end cap module(1c) End cap location-plate(4)It is bolted on end cap installing plate(22)On, described end cap installing plate(22)Upper and end cap is fixed Position plate(4)Test stomata(10)Correspondence position also is provided with testing stomata(10);Described drive connection block(24)Front end is provided with Some plugs play bolt(23), the plug plays bolt(23)Smooth section run through end cap installing plate(22)Set, end cap installing plate (22)It is limited in plug and plays bolt(23)Smooth section, can play bolt in plug(23)Smooth section is slided, and plug plays bolt(23)Cap portion with Sleeve location-plate(3)Both sides correspondence, can drive sleeve location-plate(3)Reach, described drive connection block(24)Rear side is with driving Dynamic model block(1a)It is connected.
2. a kind of port sealing mechanism of PE ball valves according to claim 1, it is characterised in that:Described spacing preiection (12)With extruding sleeve(2)Front end is used for sealing ring(8)Spacing face is provided with gradient identical chamfering.
3. a kind of port sealing mechanism of PE ball valves according to claim 1, it is characterised in that:Described end cap location-plate (4)In " work " font, described sleeve location-plate(3)Surface both sides are provided with projection afterwards(11), projection(11)End cap is fastened on to determine In the breach of position plate both sides, described plug plays bolt(23)Cap portion and projection(11)Position is correspondingly arranged.
4. a kind of port sealing mechanism of PE ball valves according to claim 1 or 3, it is characterised in that:Described end cap is determined Position plate(4)A bolt positioning hole is respectively provided with four angles(5), described bolt positioning hole(5)For the aircraft hole of Quick Release.
5. a kind of port sealing mechanism of PE ball valves according to any claim in claims 1 to 3, its feature exists In:Described end cover body(1)Provided with two stopping mechanisms(13), two stopping mechanisms(13)Along end cap central axisymmetrical Set.
6. a kind of port sealing mechanism of PE ball valves according to claim 4, it is characterised in that:Described end cover body (1)Provided with two stopping mechanisms(13), two stopping mechanisms(13)Set along end cap central axisymmetrical.
7. a kind of port sealing mechanism of PE ball valves according to claim 1, it is characterised in that:Described drive module (1a)For cylinder(25), cylinder(25)Cylinder axis and drive connection block(24)Connection.
8. a kind of port sealing mechanism of PE ball valves according to claim 1, it is characterised in that:Described end cap installing plate (22)With end cap location-plate(4)Dock the test stomata of side(10)Locating slot of the periphery provided with a circle sealing ring(26), locating slot (26)With test stomata(10)It is coaxially disposed, locating slot(26)It is interior to be provided with sealing ring.
CN201510976293.1A 2015-12-22 2015-12-22 A kind of port sealing mechanism of PE ball valves Expired - Fee Related CN105571787B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510976293.1A CN105571787B (en) 2015-12-22 2015-12-22 A kind of port sealing mechanism of PE ball valves

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Application Number Priority Date Filing Date Title
CN201510976293.1A CN105571787B (en) 2015-12-22 2015-12-22 A kind of port sealing mechanism of PE ball valves

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CN105571787B true CN105571787B (en) 2017-09-29

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113281033A (en) * 2021-06-18 2021-08-20 安徽国钦智能科技有限公司 Automatic detection device and detection method for ball valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824116B1 (en) * 2003-12-17 2004-11-30 Alex Woo Valve of infrared operated automatic water supplier
CN202305129U (en) * 2011-10-26 2012-07-04 埃泰克汽车电子(芜湖)有限公司 Quick connector for air tightness test
CN103291913A (en) * 2013-05-22 2013-09-11 中国航天科技集团公司第六研究院第十一研究所 Piston retaining device for gel fuel supercritical research experiments
CN204228344U (en) * 2014-12-12 2015-03-25 杭州戴雷科技有限公司 A kind of end cover mechanism of ball valve air tightness test machine
CN204647714U (en) * 2015-06-02 2015-09-16 宁波市宇华电器有限公司 Ball valve test sealing mechanism
CN204694409U (en) * 2015-06-30 2015-10-07 杭州欣卓科技有限公司 PE ball valve air tightness test machine
CN105043675A (en) * 2015-09-11 2015-11-11 王国良 Ball valve gas tightness test apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824116B1 (en) * 2003-12-17 2004-11-30 Alex Woo Valve of infrared operated automatic water supplier
CN202305129U (en) * 2011-10-26 2012-07-04 埃泰克汽车电子(芜湖)有限公司 Quick connector for air tightness test
CN103291913A (en) * 2013-05-22 2013-09-11 中国航天科技集团公司第六研究院第十一研究所 Piston retaining device for gel fuel supercritical research experiments
CN204228344U (en) * 2014-12-12 2015-03-25 杭州戴雷科技有限公司 A kind of end cover mechanism of ball valve air tightness test machine
CN204647714U (en) * 2015-06-02 2015-09-16 宁波市宇华电器有限公司 Ball valve test sealing mechanism
CN204694409U (en) * 2015-06-30 2015-10-07 杭州欣卓科技有限公司 PE ball valve air tightness test machine
CN105043675A (en) * 2015-09-11 2015-11-11 王国良 Ball valve gas tightness test apparatus

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