CN105651461A - Internally-stretched sealed valve test machine - Google Patents
Internally-stretched sealed valve test machine Download PDFInfo
- Publication number
- CN105651461A CN105651461A CN201510977434.1A CN201510977434A CN105651461A CN 105651461 A CN105651461 A CN 105651461A CN 201510977434 A CN201510977434 A CN 201510977434A CN 105651461 A CN105651461 A CN 105651461A
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- CN
- China
- Prior art keywords
- end cap
- cover body
- plate
- end cover
- ball valve
- 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.)
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Classifications
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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
Abstract
The invention discloses an internally-stretched sealed valve test machine, and relates to the field of a ball valve airtightness test machine. The internally-stretched sealed valve test machine comprises a machine frame, sealing mechanisms which are arranged at the two sides of the internal part of the machine frame, and a ball valve positioning mechanism which is arranged between the two sealing mechanisms. The two sealing mechanisms are oppositely arranged. Each sealing mechanism comprises an end cap module, an end cap positioning module and a driving module. The end cap module comprises an end cap body, an end cap positioning plate, an extruding sleeve which sleeves the end cap body and can slide along the end cap body, a sleeve positioning plate and a stop mechanism which is arranged in the end cap body, wherein the end cap positioning plate and the tail part of the end cap body are fixed, and the sleeve positioning plate sleeves the end cap body and the sleeve positioning plate and the tail part of the extruding sleeve are fixed. According to the internally-stretched sealed valve test machine, the end surface of the ball valve is not subjected to force, the ball valve is not clamped to deform and the end cap has an automatic stop function so that the problems that the existing ball valve is inconvenient in clamping and the ball valve is liable to deform to influence test precision can be solved.
Description
Technical field
The present invention relates to ball valve air tightness test machine field, particularly relate to a kind of in stretch formula seal valve-testing machine.
Background technology
Ball valve is to make opening and closing element with the spheroid with manhole, and spheroid rotates with valve rod, to realize the valve of switching motion. Ball valve is mainly used as cut-out, distribution and changes the flow direction of medium.
Industrial polythene PE ball valve is the important control parts of PE pipe network, requires to carry out experiments of sealing performance for medium compressing gas before therefore using. When ball valve is tested by prior art, sealing gasket or sealing ring is generally adopted to be placed in the outside at ball valve two ends, it is clamped in ball valve two ends with the force application apparatus such as cylinder or jack simultaneously, so that sealing gasket or sealing ring and two ends of ball valve are formed and seal, ball valve after whole sealing is immersed in the water, then inside ball valve, passes into compression its sealing property of gas examination.
Above-mentioned test method has the disadvantages that 1, operating process is complicated, its frame heavier-weight, frame need to be immersed in the water by external equipment, and the installation of ball valve also comparatively bothers, 2, adopt pressing plate under jack thus ball valve being sealed and sealing ring is placed in outside ball valve two ends, and by cylinder clamping when ball valve two ends seal, the all more difficult control of the dynamics of both, the words that the lower power pressed or clamp is inadequate, pressing plate may be made not firm with the sealing of ball valve end, thus affecting the accuracy of test, bring qualitative erroneous judgement, the words that the lower power pressed or clamp is excessive, ball valve can be made to deform, cause ball valve end face out-of-flatness, so that sealing cannot be formed between ball valve and pressing plate, bring qualitative erroneous judgement, additionally, the words that the lower power pressed or clamp is excessive, it is likely to and directly damages ball valve.
Summary of the invention
The present invention is to solve that current ball valve clamping inconvenience, ball valve are easily deformed the problem affecting measuring accuracy, it is proposed to stretch formula sealing in a kind of, ball valve end face does not stress, the held deformation of ball valve and end cap will not be made to have the valve-testing machine of automatic stopping function.
To achieve these goals, the present invention is by the following technical solutions: stretch the valve-testing machine that formula seals in a kind of, including frame, ball valve detent mechanism between the sealing mechanism being arranged on machine frame inside both sides and two sealing mechanisms, the sealing mechanism of two is oppositely arranged;Described sealing mechanism includes end cap module, end cap locating module and drives module, described end cap module includes the fixing end cap location-plate of end cover body and end cover body afterbody, be set in end cover body can along the compression sleeve that end cover body is slided, be set in end cover body and the sleeve location-plate fixing with compression sleeve afterbody and the stopping mechanism that is arranged in end cover body; Also being arranged with sealing ring in 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 compression sleeve front end; Run through end cover body and end cap location-plate is provided with at least one test pore; Described stopping mechanism includes a retreat stop block, a 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; Offering the storage tank of retreat stop block on described end cover body sidewall, described compression sleeve offers the perforate allowing retreat stop block traverse, described retreat stop block can move up and down in storage tank, and the storage tank of retreat stop block connects with the piston slideway of piston; Two fixed pulleys it are provided with inside described retreat stop block; Described contiguous block one end is connected with piston, and the other end is in the knee of 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 frame is provided with baffle plate spacing after stretching out for retreat stop block, offers the perforate allowing end cover body traverse in the middle of described baffle plate; Described end cap locating module includes end cap installing plate and drives contiguous block, described end cap installing plate both sides are provided with polished rod guiding mechanism, the end cap location-plate of described end cap module is fixed on end cap installing plate, described driving contiguous block runs through end cap installing plate by some connecting rods and is connected with the sleeve location-plate of end cap module, can move forward by drive sleeve location-plate, be connected with driving module on rear side of described driving contiguous block; Described ball valve detent mechanism includes two V-type bracing frames and four limiting plates, and two described V-type bracing frames are located on the straight line that two sealing mechanisms connect, for sustaining ball valve; Rectangular four the some positional symmetry of four described limiting plates are arranged, for ball valve center valve body screens.
As preferably, described spacing preiection is provided with, for the face that sealing ring is spacing, the chamfering that gradient is identical with compression sleeve front end.
As preferably, described end cap location-plate is " 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 connecting rod is connected with projection.
As preferably, described end cap location-plate is respectively provided with a bolt positioning hole on four angles, and described bolt positioning hole is the aircraft hole of Quick Release.
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 driving module is cylinder, and the cylinder body of cylinder is fixed in frame, and the cylinder axis of cylinder is connected with driving contiguous block.
Therefore, there is advantages that 1, adopt in stretch the end cover designs of formula, ball valve end face does not stress, and improves measuring accuracy; 2, extruding expansion sealing ring is adopted to seal, will not with wall friction in ball valve when stretching mobile in end cap, convenient plug;3, being provided with stopping mechanism, it is prevented that measuring air pressure is excessive, end cap retreats, and affects measuring accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of test mode of the present invention.
Fig. 3 is the structural representation of sealing mechanism of the present invention.
Fig. 4 is the structural representation of end cap module of the present invention.
Fig. 5 is the structural representation of end cap another angle of module of the present invention.
Fig. 6 is the top view of end cap module of the present invention.
Fig. 7 is the sectional view of A-A in Fig. 6.
Fig. 8 is the front view of end cap module of the present invention.
Fig. 9 is the sectional view of B-B in Fig. 8.
Figure 10 is the right view of Fig. 8.
Figure 11 is the left view of Fig. 8.
Figure 12 is the structural representation that end cap module of the present invention uses state.
Figure 13 is the structural representation of end cap locating module of the present invention.
1a: frame; 1b: ball valve detent mechanism; 1c: drive module; 1d: end cap locating module; 1e: 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: sealing ring; 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: connecting rod; 24: drive contiguous block; 25: cylinder; 26: polished rod; 27:V type bracing frame; 28: limiting plate.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiments, the present invention will be further described.
Stretching the valve-testing machine that formula seals in a kind of, as shown in figure 1 to figure 13, including frame 1a, be arranged on the ball valve detent mechanism 1b between sealing mechanism and two sealing mechanisms of both sides inside frame 1a, the sealing mechanism of two is oppositely arranged; Described sealing mechanism include end cap module 1e, end cap locating module 1d and drive module 1c, described end cap module 1e to include the end cover body 1 of a cylindrical shape and the fixing end cap location-plate 4 of end cover body 1 afterbody, be set in end cover body 1 can along the compression sleeve 2 that end cover body 1 is slided, be set in end cover body 1 and the sleeve location-plate 3 fixing with compression sleeve 2 afterbody and two stopping mechanisms 13 being 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 sealing ring 8, sealing ring 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 designed with 45 degree of gradients for the face that sealing ring 8 is spacing; Run through end cover body 1 and end cap location-plate 4 is 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, it is possible to prevents compression sleeve 2 when moving forward and backward crush seal circle 8 along end cover body 1, rotates. Described connecting rod 23 is connected with projection 11, it is possible to promote projection 11 to move forward, and then promotes compression sleeve 2 to move forward, crush seal circle 8.
Two described stopping mechanisms 13 are arranged along end cap central axisymmetrical, each stopping mechanism 13 includes square retreat stop block 15, piston 14 of 7, contiguous block and a returning spring 16, offering piston slideway 9 on described end cover body 1 front end face, 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 traverse, described retreat stop block 7 can move up and down in storage tank 19, and the storage tank 19 of retreat stop block 7 connects with the piston slideway 9 of piston 14; Described retreat stop block 7 is internal is provided with two fixed pulleys 18; Described contiguous block 15 one end is connected with piston 14, the other end is 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, driving contiguous block 15 to retreat, the fixed pulley 18 in retreat stop block 7 rolls along the knee 17 on rear side of contiguous block 15, drives and moves on retreat stop block 7; On the contrary, piston 14 moves forward, and drives contiguous block 15 to move forward, and the fixed pulley 18 in retreat stop block 7 rolls along the knee 17 on rear side of contiguous block 15, drives retreat stop block 7 to move down; Described contiguous block 15 is also arranged with a returning spring 16 for piston 14 reply.
4 four angles of described end cap location-plate are respectively provided with a bolt positioning hole 5, the aircraft hole that described bolt positioning hole 5 is installed for ease of bolt.
Described end cap locating module 1d includes end cap installing plate 22 and drives contiguous block 24, described end cap installing plate 22 both sides are provided with polished rod 26 guiding mechanism, the end cap location-plate 4 of described end cap module 1e is bolted on end cap installing plate 22, described driving contiguous block 24 runs through end cap installing plate 22 by four connecting rods 23 and is connected with the sleeve location-plate 3 of end cap module 1e, can move forward by drive sleeve location-plate 3, be connected with driving module 1c on rear side of described driving contiguous block 24. As shown in figure 13, described end cap installing plate 22 is provided with and can allow the through hole of connecting rod 23 traverse, end cap installing plate 22 is limited between driving contiguous block 24 and end cap location-plate 4, and drives the thickness more than end cap installing plate 22 of connecting rod 23 length between contiguous block 24 and end cap location-plate 4.
Frame 1a is additionally provided with on front side of described end cap module 1e the baffle plate 20 for end cover body 1 retaining, in the middle of baffle plate 20, offers the perforate allowing end cover body 1 traverse.
Described ball valve detent mechanism 1b includes two V-type bracing frames 27 and four limiting plates 28, and two described V-type bracing frames 27 are located on the straight line that two sealing mechanisms connect, for the valve arm at sustaining ball valve 21 two ends; Rectangular four the some positional symmetry of four described limiting plates 28 are arranged, for ball valve 21 center valve body screens, it is prevented that ball valve 21 is internal in pressure process, and left and right skew occurs ball valve, affects test result.
During use, being first put in frame 1a by ball valve 21, the valve arm of ball valve 21 both sides is respectively supported on two V-type bracing frames 27, and center valve body is placed in four limiting plate 28 realizing middle limitings; Start the cylinder 25 of frame 1a both sides, cylinder 25 drives whole end cap locating module 1d and end cap module 1e to move, owing to being provided with sealing ring 8 between spacing preiection 12 and the compression sleeve 2 of end cap module 1e, now, will 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 1a, stop reach, module 1c is driven to continue to press on the projection 11 of sleeve location-plate 3 both sides on rear side of compression sleeve 2 by connecting rod 23, compression sleeve 2 continues reach, crush seal circle 8, and sealing ring 8 expanding extruding is at ball valve 21 inwall, realize sealing, as shown in figure 12;By the test pore 10 within end cover, ventilation pressurization in ball valve 21, air pressure increases at any time, piston 14 pressurized in end cover body 1 retreats, and drives contiguous block 15 to retreat, and the fixed pulley 18 in retreat stop block 7 rolls along the knee 17 on rear side of contiguous block 15, drive and retreat stop block 7 moves, it is limited on the baffle plate 20 of frame 1a, it is prevented that whole end cover is increased by close beta air pressure and retreats, and affects 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, fixed pulley 18 in retreat stop block 7 rolls along the knee 17 on rear side of contiguous block 15, retreat stop block 7 is driven to move down, lift restrictions, cylinder 25 bounces back, end cap module 1e and end cap locating module 1d is pulled to retreat, connecting rod 23 pulls projection 11 to retreat simultaneously, sealing ring 8 is replied and is reduced, stop extruding ball valve 21 inwall, end cover body 1 removes in ball valve 21 end face, namely the test of a ball valve 21 is completed.
Claims (7)
1. stretching the valve-testing machine that formula seals in, including frame (1a), be arranged on the ball valve detent mechanism (1b) between sealing mechanism and two sealing mechanisms of both sides inside frame (1a), the sealing mechanism of two is oppositely arranged; It is characterized in that:
Described sealing mechanism includes end cap module (1e), end cap locating module (1d) and drives module (1c), described end cap module (1e) includes the fixing end cap location-plate (4) of end cover body (1) and end cover body (1) afterbody, be set in end cover body (1) in can along the compression sleeve (2) that end cover body (1) slides, be set in that end cover body (1) is upper and the sleeve location-plate (3) fixed with compression sleeve (2) afterbody and the stopping mechanism (13) being arranged in end cover body (1); Also being arranged with sealing ring (8) in described end cover body (1), end cover body (1) front end side wall is provided with the spacing preiection (12) of sealing ring (8), and sealing ring (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) is provided with at least one test pore (10);
Described stopping mechanism (13) includes a retreat stop block (7), a contiguous block (15), a piston (14) and a returning spring (16), offering piston slideway (9) on described end cover body (1) front end face, 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) traverse, described retreat stop block (7) can move up and down in storage tank (19), and the storage tank (19) of retreat stop block (7) connects with the piston slideway (9) of piston (14); Described retreat stop block (7) is internal is provided with two fixed pulleys (18); Described contiguous block (15) one end is connected with piston (14), the other end is 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 one for returning spring (16) that piston (14) is replied;
Described frame (1a) is provided with baffle plate (20) spacing after stretching out for retreat stop block (7), offers the perforate allowing end cover body (1) traverse in the middle of described baffle plate (20);
Described end cap locating module (1d) includes end cap installing plate (22) and drives contiguous block (24), described end cap installing plate (22) both sides are provided with polished rod (26) guiding mechanism, the end cap location-plate (4) of described end cap module (1e) is fixed on end cap installing plate (22), described driving contiguous block (24) runs through end cap installing plate (22) by some connecting rods (23) and is connected with the sleeve location-plate (3) of end cap module (1e), can moving forward by drive sleeve location-plate (3), described driving contiguous block (24) rear side is connected with driving module (1c);
Described ball valve detent mechanism (1b) includes two V-type bracing frames (27) and four limiting plates (28), and two described V-type bracing frames (27) are located on the straight line that two sealing mechanisms connect, for sustaining ball valve (21); Rectangular four the some positional symmetry of four described limiting plates (28) are arranged, for ball valve (21) center valve body screens.
2. according to claim 1 a kind of in stretch formula seal valve-testing machine, it is characterised in that: described spacing preiection (12) is provided with, for the face that sealing ring (8) is spacing, the chamfering that gradient is identical with compression sleeve (2) front end.
3. according to claim 1 a kind of in stretch formula seal valve-testing machine, it is characterized in that: described end cap location-plate (4) is " 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 connecting rod (23) is connected with projection (11).
4. in a kind of according to claim 1 or 3, stretch the valve-testing machine that formula seals, it is characterised in that: (4) four angles of described end cap location-plate are respectively provided with a bolt positioning hole (5), the aircraft hole that described bolt positioning hole (5) is Quick Release.
5. in a kind of according to any claim in claims 1 to 3, stretch the valve-testing machine that formula seals, 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. according to claim 4 a kind of in stretch the valve-testing machine that formula seals, it is characterised 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. according to claim 1 a kind of in stretch formula seal valve-testing machine, it is characterized in that: described driving module (1c) is cylinder (25), the cylinder body of cylinder (25) is fixed in frame (1a), and the cylinder axis of cylinder (25) is connected with driving contiguous block (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977434.1A CN105651461B (en) | 2015-12-22 | 2015-12-22 | The sealed valve-testing machine of formula is stretched in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977434.1A CN105651461B (en) | 2015-12-22 | 2015-12-22 | The sealed valve-testing machine of formula is stretched in one kind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105651461A true CN105651461A (en) | 2016-06-08 |
| CN105651461B CN105651461B (en) | 2017-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977434.1A Expired - Fee Related CN105651461B (en) | 2015-12-22 | 2015-12-22 | The sealed valve-testing machine of formula is stretched in one kind |
Country Status (1)
| Country | Link |
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| CN (1) | CN105651461B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108871707A (en) * | 2018-08-22 | 2018-11-23 | 邹凯 | A kind of leakage detection apparatus of natural gas ball valve |
| CN108896254A (en) * | 2018-07-09 | 2018-11-27 | 陈永杰 | A kind of pressure maintaining module of polyethylene ball valve |
| CN110220067A (en) * | 2019-06-10 | 2019-09-10 | 赵桂凤 | A kind of sealing pressure maintaining capping of gas ductwork |
| CN110823463A (en) * | 2019-11-29 | 2020-02-21 | 陈美香 | Method and equipment for detecting air tightness of precision three-way valve |
| CN111238737A (en) * | 2018-11-29 | 2020-06-05 | 博世汽车部件(苏州)有限公司 | Plugging device and leakage test equipment |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896254A (en) * | 2018-07-09 | 2018-11-27 | 陈永杰 | A kind of pressure maintaining module of polyethylene ball valve |
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| CN108871707A (en) * | 2018-08-22 | 2018-11-23 | 邹凯 | A kind of leakage detection apparatus of natural gas ball valve |
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| CN111238737B (en) * | 2018-11-29 | 2023-10-27 | 博世汽车部件(苏州)有限公司 | Plugging device and leakage testing equipment |
| CN110220067A (en) * | 2019-06-10 | 2019-09-10 | 赵桂凤 | A kind of sealing pressure maintaining capping of gas ductwork |
| 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 |
| CN110823463A (en) * | 2019-11-29 | 2020-02-21 | 陈美香 | Method and equipment for detecting air tightness of precision three-way valve |
| 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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| CN105651461B (en) | 2017-11-07 |
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