CN105547598B - A kind of valve end sealing mechanism - Google Patents

A kind of valve end sealing mechanism Download PDF

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Publication number
CN105547598B
CN105547598B CN201510977479.9A CN201510977479A CN105547598B CN 105547598 B CN105547598 B CN 105547598B CN 201510977479 A CN201510977479 A CN 201510977479A CN 105547598 B CN105547598 B CN 105547598B
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CN
China
Prior art keywords
cover body
end cap
end cover
plate
location
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201510977479.9A
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Chinese (zh)
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CN105547598A (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 CN201510977479.9A priority Critical patent/CN105547598B/en
Publication of CN105547598A publication Critical patent/CN105547598A/en
Application granted granted Critical
Publication of CN105547598B publication Critical patent/CN105547598B/en
Expired - Fee Related legal-status Critical Current
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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 valve end sealing mechanism, 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, will not make the clamped deformation of ball valve and the valve end sealing mechanism with automatic stopping function to solve the problem of current ball valve clamping is inconvenient, ball valve is easily deformed influence measuring accuracy.

Description

A kind of valve end sealing mechanism
Technical field
The present invention relates to ball valve air tightness test machine field, more particularly to a kind of valve end sealing mechanism.
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, will not make the clamped deformation of ball valve and the valve end sealing mechanism with automatic stopping function.
To achieve these goals, the present invention uses following technical scheme:A kind of valve end sealing mechanism, including end cap Module, end cap locating module and drive module, the end that described end cap module includes end cover body, fixed with end cover body afterbody Lid 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 extruding The sleeve location-plate of sleeve afterbody fixation and the stopping mechanism being arranged in end cover body;Also it is arranged in described end cover body There is sealing ring, 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 extruded sleeve Between cylinder front end;Through end cover body and end cap location-plate provided with least one test stomata;Described stopping mechanism includes one Piston cunning is offered on individual retreat stop block, a contiguous block, a piston and a returning spring, described end cover body front end face Road, described piston is slidably disposed in piston slideway;The accommodating of retreat stop block is offered on described end cover body side wall Being offered on groove, described extruding sleeve allows the perforate that passes through of retreat stop block, above and below described retreat stop block can be made in storage tank Move, 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;It is described Contiguous block one end be connected with piston, the other end is in the knee to end cap central axis bending, and described knee can stretch into retaining Between two fixed pulleys of block, driving retreat stop block moves up and down;One is also arranged with described contiguous block to return for piston Multiple returning spring;Described end cap locating module includes end cap installing plate and drive connection block, the end cap of the end cap module Location-plate is fixed on end cap installing plate, and described drive connection block runs through end cap installing plate and end cap module by some connecting rods The connection of sleeve location-plate, can the reach of drive sleeve location-plate, be connected with drive module on rear side of described drive connection block.
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 described connecting rod is connected with projection.
Preferably, being respectively provided with a bolt positioning hole on described four angles of end cap location-plate.
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.
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.
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:Connecting rod;24:Drive connection block;25:Gas Cylinder.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of valve end sealing mechanism, as shown in Figures 1 to 9, including end cap module 1c, end cap locating module 1b and drive Dynamic model block 1a, described end cap module 1c include the end cover body 1 of a cylindrical shape, the end with the fixation of the afterbody of end cover body 1 Lid 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 The extruding sleeve 2 afterbody sleeve location-plate 3 fixed and two stopping mechanisms 13 being arranged in end cover body 1;Described end cap O-ring seal 8 is also arranged with main body 1, the front end side wall of end cover body 1 is provided with the spacing preiection 12 of sealing ring 8, sealing ring 8 It is spacing between spacing preiection 12 and extruding sleeve 2 front end, described spacing preiection 12 and extruding sleeve 2 front end is used for sealing ring 8 spacing faces are 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 test gas 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.
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 fixed on end cap installing plate 22, and described drive connection block 24 runs through end cap installing plate by four connecting rods 23 22 are connected with the end cap module 1c projection 11 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 cylinder 25, as shown in figure 11, and described end cap installing plate 22, which is provided with, can allow connecting rod 23 The through hole passed through, end cap installing plate 22 is limited between drive connection block 24 and end cap location-plate 4, and drive connection block 24 with The length of connecting rod 23 between end cap location-plate 4 is more than the thickness of end cap installing plate 22.
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 continues through the projection 11 that connecting rod 23 promotes the both sides of 2 rear side sleeve location-plate of extruding sleeve 3, and extruding sleeve 2 continues to move forward, squeezed Pressure seal ring 8, the expanding extruding of sealing ring 8 realizes sealing, as shown in Figure 10 in the inwall of ball valve 21;Inside end cover Ventilation pressurization in stomata 10, past ball valve 21 is tested, air pressure increases at any time, the compression of piston 14 in end cover body 1 is retreated, the company of drive Connect block 15 to retreat, knee 17 of the fixed pulley 18 in retreat stop block 7 along the rear side of contiguous block 15 is rolled, driving retreat stop block 7 is moved up, and is limited System prevents whole end cover from being increased by close beta air pressure and retreated on the baffle plate 20 of test equipment, influences measuring accuracy. 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 returning spring 16 Effect, reply reach, drive contiguous block 15 to move forward, knee 17 of the fixed pulley 18 in retreat stop block 7 along the rear side of contiguous block 15 Roll, driving retreat stop block 7 is moved down, and is lifted restrictions, cylinder 25 bounces back, retract drive connection block 24 and push projection 11, sealing ring 8 Reply and reduce, stop the extruding inwall of ball valve 21, while pulling end cover module 1c and end cap locating module 1b is retreated, end cover body 1 Removed out of ball valve 21 end face, that is, complete the test of a ball valve 21.

Claims (7)

1. a kind of valve end sealing mechanism, including end cap module(1c), end cap locating module(1b)And drive module(1a), institute The end cap module stated(1c)Including end cover body(1)With end cover body(1)The end cap location-plate that afterbody is fixed(4), be set in end Lid main 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 extruding sleeve (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 cover 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 Circle(8)It is spacing in spacing preiection(12)With extruding sleeve(2)Between front end;Through end cover body(1)With end cap location-plate(4)If There is at least one to test stomata(10), it is characterised in that:Described stopping mechanism(13)Including a retreat stop block(7), a company Connect block(15), a piston(14)With a returning spring(16), described end cover body(1)Piston cunning is offered on front end face Road(9), described piston(14)It is slidably disposed on piston slideway(9)It is interior;Described end cover body(1)Offered on the wall of side Retreat stop block(7)Storage tank(19), described extruding sleeve(2)On offer permission retreat stop block(7)The perforate passed through(6), institute The retreat stop block stated(7)Can be in storage tank(19)Inside move up and down, and retreat stop block(7)Storage tank(19)With piston(14)Work Fill in slideway(9)Connection;Described retreat stop block(7)Inside is provided with two fixed pulleys(18);Described contiguous block(15)One end and work Plug(14)It is connected, the other end is in the knee to end cap central axis bending(17), described knee(17)Retreat stop block can be stretched into(7) Two fixed pulleys(18)Between, drive retreat stop block(7)Move up and down;Described contiguous block(15)On be also arranged with one with In 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 fixed on end cap installing plate(22)On, described drive connection block(24)Pass through some connecting rods(23)Pass through Wear end cap installing plate(22)With end cap module(1c)Sleeve location-plate(3)Connection, can drive sleeve location-plate(3)Reach, institute The drive connection block stated(24)Rear side and drive module(1a)It is connected.
2. a kind of valve end sealing mechanism according to claim 1, it is characterised in that:Described spacing preiection(12)With Extrude sleeve(2)Front end is used for sealing ring(8)Spacing face is provided with gradient identical chamfering.
3. a kind of valve end sealing mechanism 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)It is fastened on end cap location-plate In the breach of both sides, described connecting rod(23)With projection(11)It is connected.
4. a kind of valve end sealing mechanism according to claim 1 or 3, it is characterised in that:Described end cap location-plate (4)A bolt positioning hole is respectively provided with four angles(5).
5. a kind of valve end sealing mechanism according to any claim in claims 1 to 3, it is characterised in that:Institute The end cover body stated(1)Provided with two stopping mechanisms(13), two stopping mechanisms(13)Set along end cap central axisymmetrical.
6. a kind of valve end sealing mechanism according to claim 4, it is characterised in that:Described end cover body(1)On Provided with two stopping mechanisms(13), two stopping mechanisms(13)Set along end cap central axisymmetrical.
7. a kind of valve end sealing mechanism 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.
CN201510977479.9A 2015-12-22 2015-12-22 A kind of valve end sealing mechanism Expired - Fee Related CN105547598B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510977479.9A CN105547598B (en) 2015-12-22 2015-12-22 A kind of valve end sealing mechanism

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Application Number Priority Date Filing Date Title
CN201510977479.9A CN105547598B (en) 2015-12-22 2015-12-22 A kind of valve end sealing mechanism

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CN105547598A CN105547598A (en) 2016-05-04
CN105547598B true CN105547598B (en) 2017-09-29

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110220067B (en) * 2019-06-10 2020-11-20 义乌市安航科技有限公司 Sealing pressure-maintaining sealing cover of gas pipe network

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
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
CN204556179U (en) * 2015-05-14 2015-08-12 杭州戴雷科技有限公司 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
CN204649359U (en) * 2015-06-02 2015-09-16 宁波市宇华电器有限公司 Inside stretch formula air tightness test block head
CN204758229U (en) * 2015-07-24 2015-11-11 杭州欣卓科技有限公司 End cover
CN105092233A (en) * 2015-09-11 2015-11-25 杭州戴雷科技有限公司 Ball valve test machine capable of carrying out airtightness tests and torque tests

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
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
CN204556179U (en) * 2015-05-14 2015-08-12 杭州戴雷科技有限公司 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
CN204649359U (en) * 2015-06-02 2015-09-16 宁波市宇华电器有限公司 Inside stretch formula air tightness test block head
CN204758229U (en) * 2015-07-24 2015-11-11 杭州欣卓科技有限公司 End cover
CN105092233A (en) * 2015-09-11 2015-11-25 杭州戴雷科技有限公司 Ball valve test machine capable of carrying out airtightness tests and torque tests

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