CN105571787A - PE ball valve port sealing mechanism - Google Patents
PE ball valve port sealing mechanism Download PDFInfo
- Publication number
- CN105571787A CN105571787A CN201510976293.1A CN201510976293A CN105571787A CN 105571787 A CN105571787 A CN 105571787A CN 201510976293 A CN201510976293 A CN 201510976293A CN 105571787 A CN105571787 A CN 105571787A
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- China
- Prior art keywords
- end cap
- end cover
- ball valve
- plate
- cover body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/022—Test plugs for closing off the end of a pipe
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a PE ball valve port sealing mechanism, comprising an end cover module, an end cover positioning module and a driving module. The end cover module comprises an end cover main body, an end cover positioning plate in fixed connection with the tail of the end cover main body, an extruding sleeve sleeving the end cover main body and capable of sliding along the end cover main body, a sleeve positioning plate sleeving the end cover main body and fixed to the tail of the extruding sleeve, and locking mechanisms arranged in the end cover main body. The end cover main body is also sleeved by a sealing ring; the front end sidewall of the end cover main body is provided with a position-restricted projection of the sealing ring; the sealing ring is limited between the position-restricted projection and the front end of the extruding sleeve; at least one test pore is arranged to penetrate the end cover main body and the end cover positioning plate. In order to solve the problems that a current ball valve is inconvenient to clamp, and is easy to deform, thereby influencing test precision, the invention provides the PE ball valve port sealing mechanism which avoids stress on a ball valve end face, is fast to replace, prevents the ball valve from being clamped and deformed, and is provided with a locking function.
Description
Technical field
The present invention relates to ball valve air tightness test machine field, particularly relate to a kind of port sealing mechanism of PE ball valve.
Background technology
Ball valve makes opening and closing element with the spheroid of band manhole, and spheroid rotates with valve rod, to realize the valve of switching motion.Ball valve is mainly used as cut-out, distributes and change the flow direction of medium.
Industrial polythene PE ball valve is the important control assembly of PE pipe network, requires with pressure gas to be that medium carries out experiments of sealing performance before therefore using.When prior art is tested ball valve, usual employing sealing gasket or O-ring seal are placed in the outside at ball valve two ends, be clamped in ball valve two ends with the force application apparatus such as cylinder or lifting jack simultaneously, thus sealing gasket or O-ring seal and ball valve two ends are formed seal, ball valve after whole sealing is immersed in the water, then passes into pressure gas toward ball valve inside and check its sealing property.
Above-mentioned test method has following shortcoming: 1, operating process is complicated, and its frame heavier-weight, need be immersed in the water frame by external unit, and the installation of ball valve also comparatively bothers, 2, adopt lifting jack to press down pressing plate thus ball valve is sealed and O-ring seal to be placed in ball valve two ends outside, and by cylinder clamping when ball valve two ends seal, the all more difficult control of dynamics of both, the words that the power pressing down or clamp is inadequate, the sealing of pressing plate and ball valve end may be made not firm, thus the accuracy of impact test, bring qualitative erroneous judgement, the words that the power pressing down or clamp is excessive, ball valve can be made to deform, cause the out-of-flatness of ball valve end face, thus make cannot form sealing between ball valve and pressing plate, bring qualitative erroneous judgement, in addition, the words that the power pressing down or clamp is excessive, also directly ball valve can be damaged.
Summary of the invention
In order to solve, the clamping of current ball valve is inconvenient, the problem of the easy deformation effect measuring accuracy of ball valve in the present invention, proposes that a kind of ball valve end face does not stress, convenient replacing, ball valve can not be made to be clamped distortion and have the port sealing mechanism of the PE ball valve of automatic stopping function.
To achieve these goals, the present invention is by the following technical solutions: a kind of port sealing mechanism of PE ball valve, the end cap location-plate comprise end cap module, end cap locating module and driver module, described end cap module comprises end cover body, fixed with end cover body afterbody, be set in end cover body can be slided along end cover body compression sleeve, be set in end cover body and the sleeve location-plate fixed with compression sleeve afterbody and the stopping mechanism be arranged in end cover body; Described end cover body is also arranged with O-ring seal, and end cover body front end side wall is provided with the spacing preiection of O-ring seal, and O-ring seal is spacing between spacing preiection and compression sleeve front end; Run through end cover body and end cap location-plate and be provided with at least one test pore; Described stopping mechanism comprises a retreat stop block, contiguous block, a piston and a returning spring, and described end cover body front end face offers piston slideway, and described piston is slidably disposed in piston slideway; Described end cover body sidewall offers the storage tank of retreat stop block, described compression sleeve offers the perforate allowing retreat stop block to pass, described retreat stop block can move up and down in storage tank, and the storage tank of retreat stop block is communicated with the piston slideway of piston; Described retreat stop block inside is provided with two fixed pulleys; 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 stretch between two fixed pulleys of retreat stop block, drives retreat stop block to move up and down; Described contiguous block is also arranged with a returning spring for piston revert; Described end cap locating module comprises end cap installing plate and drives contiguous block, the end cap location-plate of described end cap module is bolted on end cap installing plate, and described end cap installing plate is also provided with test pore with the test pore correspondence position of end cap location-plate; Described driving contiguous block front end is provided with some plugs and plays bolt, the smooth section that bolt played by described plug runs through the setting of end cap installing plate, end cap installing plate is limited in plug and beats bolt smooth section, bolt smooth section can be beaten at plug to slide, the cap portion that bolt played by plug is corresponding with the both sides of sleeve location-plate, can move forward by drive sleeve location-plate, be connected with driver module on rear side of described driving contiguous block.
As preferably, described spacing preiection is provided with the identical chamfering of gradient with compression sleeve front end for the face that O-ring seal is spacing.
As preferably, described end cap location-plate is in " work " font, and described both sides, sleeve location-plate rear surface are provided with projection, and projection is fastened in the breach of end cap location-plate both sides, and described plug beats that the cap portion of bolt is corresponding with bump position to be arranged.
As preferably, four angles are respectively provided with a bolt positioning hole with described end cap location-plate, and described bolt positioning hole is the aircraft hole of quick detach.
As preferably, described end cover body is provided with two stopping mechanisms, and two stopping mechanisms are arranged along end cap central axisymmetrical.
As preferably, described driver module is cylinder, and the cylinder axis of cylinder is connected with driving contiguous block.
As preferably, be arranged with the locating slot of a circle sealing ring outside described end cap installing plate docks side test pore with end cap location-plate, locating slot is coaxially arranged with test pore, is provided with sealing ring in locating slot.
Therefore, the present invention has following beneficial effect: the end cover designs of stretching formula in 1, adopting, and ball valve end face does not stress, and improves measuring accuracy; 2, adopt the sealing of extruding expansion O-ring seal, when stretching mobile in end cap can not with wall friction in ball valve, convenient plug; 3, be provided with stopping mechanism, prevent measuring air pressure excessive, end cap retreats, and affects measuring accuracy.
Accompanying drawing explanation
Fig. 1 is 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 vertical view of end cap module of the present invention.
Fig. 5 is the cut-open 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 cut-open view of B-B in Fig. 6.
Fig. 8 is the right view of Fig. 6.
Fig. 9 is the left view of Fig. 6.
Figure 10 is the structural representation of end cap module using 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: driver module; 1b: end cap locating module; 1c: end cap module; 1: end cover body; 2: compression sleeve; 3: sleeve location-plate; 4: end cap location-plate; 5: bolt positioning hole; 6: perforate; 7: retreat stop block; 8: O-ring seal; 9: piston slideway; 10: test pore; 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: bolt played by plug; 24: drive contiguous block; 25: cylinder; 26: locating slot.
Embodiment
Below in conjunction with accompanying drawing and specific embodiments, the present invention will be further described.
A kind of port sealing mechanism of PE ball valve, as shown in Figures 1 to 9, the end cap location-plate 4 comprise end cap module 1c, end cap locating module 1b and driver module 1a, described end cap module 1c comprises the end cover body 1 of a cylindrical shape, fixed with end cover body 1 afterbody, be set in end cover body 1 can be slided along end cover body 1 compression sleeve 2, be set in end cover body 1 and the sleeve location-plate 3 fixed with compression sleeve 2 afterbody and two stopping mechanisms 13 be arranged in end cover body 1; Described end cover body 1 is also arranged with O RunddichtringO 8, end cover body 1 front end side wall is provided with the spacing preiection 12 of O-ring seal 8, O-ring seal 8 is spacing between spacing preiection 12 and compression sleeve 2 front end, and described spacing preiection 12 and compression sleeve 2 front end are provided with the chamfering being all provided with 45 degree of gradients for the face that O-ring seal 8 is spacing; Run through end cover body 1 and end cap location-plate 4 and be provided with a test pore 10.
Described end cap location-plate 4 is in " work " font, described both sides, sleeve location-plate 3 rear surface are provided with projection 11, projection 11 is fastened in the breach of end cap location-plate both sides, compression sleeve 2 can being prevented when moving forward and backward crush seal circle 8 along end cover body 1, rotating.Described plug beats that the cap portion of bolt 23 is corresponding with projection 11 position to be arranged, and can promote projection 11 and move forward, and then promotes compression sleeve 2 and move forward, crush seal circle 8.
Two described stopping mechanisms 13 are arranged along end cap central axisymmetrical, each stopping mechanism 13 comprises square retreat stop block 7, contiguous block 15, piston 14 and a returning spring 16, described end cover body 1 front end face offers piston slideway 9, and described piston 14 is slidably disposed in piston slideway 9; Described end cover body 1 sidewall offers the storage tank 19 of retreat stop block 7, described compression sleeve 2 offers the perforate 6 allowing retreat stop block 7 to pass, described retreat stop block 7 can move up and down in storage tank 19, and the storage tank 19 of retreat stop block 7 is communicated with the piston slideway 9 of piston 14; Described retreat stop block 7 inside is provided with two fixed pulleys 18; Described contiguous block 15 one end is connected with piston 14, the other end is in the knee 17 to end cap central axis bending, described knee 17 can stretch between two fixed pulleys 18 of retreat stop block 7, retreat stop block 7 is driven to move up and down, when piston 14 retreats, drive contiguous block 15 to retreat, the knee 17 of the fixed pulley 18 in retreat stop block 7 on rear side of contiguous block 15 rolls, and drives on retreat stop block 7 and moves; On the contrary, piston 14 moves forward, and drive contiguous block 15 to move forward, the knee 17 of the fixed pulley 18 in retreat stop block 7 on rear side of contiguous block 15 rolls, and drives retreat stop block 7 to move down; Described contiguous block 15 is also arranged with a returning spring 16 of replying for piston 14.
4 four angles are respectively provided with a bolt positioning hole 5 with described end cap location-plate, the aircraft hole that described bolt positioning hole 5 is installed for ease of bolt.
Described end cap locating module 1b comprises end cap installing plate 22 and drives contiguous block 24, the end cap location-plate 4 of described end cap module 1c is bolted on end cap installing plate 22, described end cap installing plate 22 is also provided with test pore 10 correspondence position of end cap location-plate 4 and tests pore 10, the locating slot 26 of a circle sealing ring is arranged with outside described end cap installing plate 22 docks side test pore 10 with end cap location-plate 4, locating slot 26 is coaxially arranged with test pore 10, is provided with sealing ring in locating slot 26; Described driving contiguous block 24 front end is provided with some plugs and plays bolt 23, the smooth section that bolt 23 played by described plug runs through end cap installing plate 22 and arranges, end cap installing plate 22 is limited in plug and beats bolt 23 smooth section, bolt 23 smooth section can be beaten at plug to slide, the cap portion that bolt 23 played by plug is corresponding with the both sides of sleeve location-plate 3, can move forward by drive sleeve location-plate 3, be connected with driver module 1a on rear side of described driving contiguous block 24.
Such setting, whole end cap module 1c is just quick detach end cap, only need unscrew the set bolt at end cap location-plate 4 four angles, whole end cap module 1c just can disassemble replacing by aircraft hole, as shown in Figure 2, and be provided with sealing ring mechanism due to end cap installing plate 22 and end cap location-plate 4 interface, the sealing property of quick detach end cap test pore 10 can be ensured.
Also be provided with the baffle plate 20 for end cover body 1 retaining on front side of described end cap module 1c, in the middle of baffle plate 20, offer the perforate allowing end cover body 1 to pass.
During use, cylinder 25 drives whole end cap locating module 1b and end cap module 1c to move, owing to being provided with O-ring seal 8 between the spacing preiection 12 of end cap module 1c and compression sleeve 2, now, and can not relative sliding between end cover body 1 and compression sleeve 2.After end cover body 1 stretches into one end of ball valve 21, end cap installing plate 22 both sides are stopped by frame, stop reach, driver module 1a beats by plug the projection 11 that bolt 23 continues to promote sleeve location-plate 3 both sides on rear side of compression sleeve 2, compression sleeve 2 continues reach, crush seal circle 8, and O-ring seal 8 expanding extruding is at ball valve 21 inwall, realize sealing, as shown in Figure 10; By the test pore 10 of end cover inside, ventilation pressurization in ball valve 21, air pressure increases at any time, piston 14 pressurized in end cover body 1 retreats, and drive contiguous block 15 to retreat, the knee 17 of the fixed pulley 18 in retreat stop block 7 on rear side of contiguous block 15 rolls, drive on retreat stop block 7 and move, be limited on the baffle plate 20 of testing apparatus, prevent whole end cover from retreating by close beta air pressure increases, affect measuring accuracy.After test terminates, air pressure inside is got rid of in test pore 10, ball valve 21 internal gas pressure reduces, piston 14 is due to the effect of returning spring 16, reply reach, contiguous block 15 is driven to move forward, the knee 17 of fixed pulley 18 in retreat stop block 7 on rear side of contiguous block 15 rolls, retreat stop block 7 is driven to move down, lift restrictions, cylinder 25 bounces back, end cap module 1c and end cap locating module 1b is pulled to retreat, bolt 23 stopping pushing projection 11 beaten by plug simultaneously, O-ring seal 8 is replied and is reduced, stop extruding ball valve 21 inwall, end cover body 1 shifts out in ball valve 21 end face, namely the test of a ball valve 21 is completed.
Claims (8)
1. the port sealing mechanism of a PE ball valve, comprise end cap module (1c), end cap locating module (1b) and driver module (1a), it is characterized in that: described end cap module (1c) comprise end cover body (1), the end cap location-plate (4) fixing with end cover body (1) afterbody, be set in end cover body (1) can be slided along end cover body (1) compression sleeve (2), be set in end cover body (1) upper and the sleeve location-plate (3) fixed with compression sleeve (2) afterbody and the stopping mechanism (13) be arranged in end cover body (1); Described end cover body (1) is also arranged with O-ring seal (8), and end cover body (1) front end side wall is provided with the spacing preiection (12) of O-ring seal (8), and O-ring seal (8) is spacing between spacing preiection (12) and compression sleeve (2) front end; Run through end cover body (1) and end cap location-plate (4) and be provided with at least one test pore (10);
Described stopping mechanism (13) comprises a retreat stop block (7), contiguous block (15), a piston (14) and a returning spring (16), described end cover body (1) front end face offers piston slideway (9), and described piston (14) is slidably disposed in piston slideway (9); Described end cover body (1) sidewall offers the storage tank (19) of retreat stop block (7), described compression sleeve (2) offers the perforate (6) allowing retreat stop block (7) to pass, described retreat stop block (7) can move up and down in storage tank (19), and the storage tank (19) of retreat stop block (7) is communicated with the piston slideway (9) of piston (14); Described retreat stop block (7) inside is provided with two fixed pulleys (18); Described contiguous block (15) one end is connected with piston (14), the other end is in the knee (17) to end cap central axis bending, described knee (17) can stretch between two fixed pulleys (18) of retreat stop block (7), drives retreat stop block (7) to move up and down; Described contiguous block (15) is also arranged with a returning spring (16) of replying for piston (14);
Described end cap locating module (1b) comprises end cap installing plate (22) and drives contiguous block (24), the end cap location-plate (4) of described end cap module (1c) is bolted on end cap installing plate (22), and described end cap installing plate (22) test pore (10) correspondence position that is upper and end cap location-plate (4) is also provided with tests pore (10); Described driving contiguous block (24) front end is provided with some plugs and plays bolt (23), the smooth section that bolt (23) played by described plug runs through end cap installing plate (22) setting, end cap installing plate (22) is limited in plug and beats bolt (23) smooth section, bolt (23) smooth section can be beaten at plug to slide, the cap portion that bolt (23) played by plug is corresponding with the both sides of sleeve location-plate (3), can move forward by drive sleeve location-plate (3), described driving contiguous block (24) rear side is connected with driver module (1a).
2. the port sealing mechanism of a kind of PE ball valve according to claim 1, is characterized in that: described spacing preiection (12) is provided with the identical chamfering of gradient with compression sleeve (2) front end for the face that O-ring seal (8) is spacing.
3. the port sealing mechanism of a kind of PE ball valve according to claim 1, it is characterized in that: described end cap location-plate (4) is in " work " font, described sleeve location-plate (3) both sides, rear surface are provided with projection (11), projection (11) is fastened in the breach of end cap location-plate both sides, and described plug beats that the cap portion of bolt (23) is corresponding with projection (11) position to be arranged.
4. the port sealing mechanism of a kind of PE ball valve according to claim 1 or 3, is characterized in that: (4) four angles are respectively provided with a bolt positioning hole (5) with described end cap location-plate, the aircraft hole that described bolt positioning hole (5) is quick detach.
5. the port sealing mechanism of a kind of PE ball valve according to claim arbitrary in claims 1 to 3, it is characterized in that: described end cover body (1) is provided with two stopping mechanisms (13), two stopping mechanisms (13) are arranged along end cap central axisymmetrical.
6. the port sealing mechanism of a kind of PE ball valve according to claim 4, is characterized in that: described end cover body (1) is provided with two stopping mechanisms (13), and two stopping mechanisms (13) are arranged along end cap central axisymmetrical.
7. the port sealing mechanism of a kind of PE ball valve according to claim 1, is characterized in that: described driver module (1a) is cylinder (25), and the cylinder axis of cylinder (25) is connected with driving contiguous block (24).
8. the port sealing mechanism of a kind of PE ball valve according to claim 1, it is characterized in that: the locating slot (26) being arranged with a circle sealing ring outside described end cap installing plate (22) docks side test pore (10) with end cap location-plate (4), locating slot (26) is coaxially arranged with test pore (10), and locating slot is provided with sealing ring in (26).
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105571787A true CN105571787A (en) | 2016-05-11 |
| CN105571787B CN105571787B (en) | 2017-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510976293.1A Expired - Fee Related CN105571787B (en) | 2015-12-22 | 2015-12-22 | A kind of port sealing mechanism of PE ball valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105571787B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426154A (en) * | 2019-07-15 | 2019-11-08 | 合肥和瑞机械制造有限公司 | A kind of multifunctional pipe air-tightness detection device |
| 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 |
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| 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 |
-
2015
- 2015-12-22 CN CN201510976293.1A patent/CN105571787B/en not_active Expired - Fee Related
Patent Citations (7)
| 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426154A (en) * | 2019-07-15 | 2019-11-08 | 合肥和瑞机械制造有限公司 | A kind of multifunctional pipe air-tightness detection device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105571787B (en) | 2017-09-29 |
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