CN105675220A - Gas meter leak tester - Google Patents
Gas meter leak tester Download PDFInfo
- Publication number
- CN105675220A CN105675220A CN201610175927.8A CN201610175927A CN105675220A CN 105675220 A CN105675220 A CN 105675220A CN 201610175927 A CN201610175927 A CN 201610175927A CN 105675220 A CN105675220 A CN 105675220A
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- CN
- China
- Prior art keywords
- ring
- pocket watch
- cylinder
- web plate
- pull bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a gas meter leak tester, mainly solving the problems of false detection and leak detection possibility, limited visual field and low testing efficiency of a present tester, and comprises a liquid pool, a connection board, a plurality of meter hanging sealing mechanisms and an inflatable mechanism. The inner side wall of a liquid pool port is provided with two support arms; the connection board is hinged to the two support arms; the meter hanging cylinder of each meter hanging sealing mechanism is arranged on the connection board; one end of a pull bar is in connection with the piston rod of the meter hanging cylinder, and the other end is provided with a back-up ring; a positioning sleeve sleeves the pull bar, wherein one end is fixedly connected to the connection board, and the other end is provided with a positioning ring; a sealing ring sleeves the pull bar between the back-up ring and the positioning ring; the gas tube joint of the inflatable mechanism is in communication with the inflatable channel arranged on the piston rod of the meter hanging cylinder, and the inflatable through hole arranged on the pull bar. The inflatable mechanism is in cooperation with the meter hanging sealing mechanisms to test leak, the test visual field is wide, false detection is not easy to occur, and test efficiency is high.
Description
Technical field
The present invention relates to a kind of by observing the device that bubble carrys out the fluid sealability of test structure parts in liquid pool, especially a kind of gas meter leak tightness detection device.
Background technology
It is known that combustion gas table is that its stopping property is related to the safety of user's life and property, and therefore, it is one essential operation that combustion gas table carries out sealing propertytest in order to the accumulative flow measurement instrument flowing through combustion gas volume total amount. Gas meter leak tightness detection is general adopts dry type relative method and water examination method two kinds of modes, wherein, dry type relative method is filled with by dry air in combustion gas table, after pressure equilibrium, the pressure change of meter inner high voltage gas judges its stopping property, owing to pressure cannot reach balance within the short period of time, its detection efficiency is on the low side. Whether combustion gas table is filled and is then immersed in water with the air of certain pressure by water examination method, have bubble to judge whether combustion gas table has leakage situation to exist by observing in water, and this kind of method performance is directly perceived, and detection efficiency is higher.
At present, diaphragm gas meter adopts water examination method to carry out sealing propertytest mostly, it is clamped by shell of gas meter by meter clamping mechanism, then by pouring the air of certain pressure in airway his-and-hers watches, but lower clip junction on the shell of combustion gas table or body skin can be applied clamping force by its meter clamping mechanism clamping shell of gas meter, if the contact position of combustion gas table and meter clamping mechanism exists air-leak section, easily cause inspection by mistake, missing inspection. In addition, the existence of meter clamping mechanism makes the combustion gas table surrounding observation visual field be very restricted, and is unfavorable for observing, causes detection efficiency low.
Summary of the invention
In order to overcome the existence deficiency that leak detection inspection, may detect limited view, detection efficiency is low in prior art by mistake, the present invention provides the gas meter leak tightness detection device that a kind of reasonable in design, detection are reliable, detection broad view, detection efficiency are high.
The technical solution adopted for the present invention to solve the technical problems is: a kind of gas meter leak tightness detection device, it comprises a liquid pool, a plate, some pocket watch sealing mechanisms and inflation mechanism, the Chi Kou of liquid pool opens, it is characterized in that: be respectively equipped with two sway braces on the inner side-wall of liquid pool Chi Kou, the two ends of described web plate are hinged on two sway braces through hinged axle respectively;Each pocket watch sealing mechanism comprises a pocket watch cylinder, a pull bar, a locating sleeve and a sealing-ring, described pocket watch cylinder is arranged on the side of web plate, the through hole of the piston rod of pocket watch cylinder on web plate stretches another side to web plate, the cylinder body of pocket watch cylinder is offered an air inlet port and a return-air hole respectively, has entered the gas driven piston bar motion of air inlet port or return-air hole; One end of described pull bar is connected with piston rod, and the other end is provided with a back-up ring; Described locating sleeve is sleeved on pull bar, and its one end is fixed on web plate, and the other end is provided with a set ring; On the pull bar of described ring set between back-up ring and set ring; Each inflation mechanism comprises the inflation through hole that a gas-filled valve joint, being arranged on pocket watch cylinder is offered filling channel on the piston rod and and is opened on pull bar, and described gas-filled valve joint is connected with filling channel, inflation through hole.
It also comprises a switching mechanism, and described switching mechanism comprises a upset cylinder, a tooth bar and a gear, and described upset cylinder is fixed on the outer side wall of liquid pool Chi Kou, and described tooth bar is connected on the piston rod of upset cylinder and stretches the Chi Kou place to liquid pool; Described gear is fixed on web plate, and itself and tooth bar engage each other; Described upset cylinder drives rack drives gear to relatively rotate through its piston rod, orders about web plate and overturns between its pocket watch operation position to sealing detection station.
It also comprises a bracket, and through connecting, post is fixedly connected with the side of described web plate in the side of this bracket, and on the two ends of bracket, correspondence is provided with bearing pin respectively, and between this bearing pin and described hinged axle, hinge fills a connecting rod respectively.
Coaxially being provided with a rack tube in the periphery of described tooth bar, one end of this rack tube is fixed on liquid pool inner side-wall, and the other end corresponding gear has offered a notch.
Angle between the pocket watch operation position of described web plate, sealing detection station and horizontal plane is respectively 0 ° ,-90 °.
It is provided with a positioning spigot in described locating sleeve end.
Described liquid pool is fixed on a support.
The present invention comprises a liquid pool, a plate, some pocket watch sealing mechanisms and inflation mechanism, wherein, the inner side-wall of liquid pool Chi Kou is respectively equipped with two sway braces, the two ends of web plate are hinged on two sway braces through hinged axle respectively, pocket watch sealing mechanism comprises a pocket watch cylinder, one pull bar, one locating sleeve and a sealing-ring, pocket watch cylinder is arranged on web plate, one end of pull bar is connected with the piston rod of pocket watch cylinder, the other end is provided with a back-up ring, locating sleeve is sleeved on pull bar, its one end is fixed on web plate, the other end is provided with a set ring, on the pull bar of ring set between back-up ring and set ring, its reasonable in design, compared to meter clamping mechanism used in the prior art, it detects broad view, inflation mechanism comprises the inflation through hole that the filling channel and that a gas-filled valve joint, being arranged on pocket watch cylinder is opened on pocket watch cylinder piston rod is opened on pull bar, gas-filled valve joint is connected with filling channel, inflation through hole, coordinate pocket watch sealing mechanism that combustion gas table is carried out air-leakage test by inflation mechanism, not easily cause inspection by mistake, its detection is reliable, detection efficiency height.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a kind of structural representation of the pocket watch sealing mechanism of the present invention.
Figure marks: 1. liquid pool, 2. support, 3. pocket watch sealing mechanism, 301. pocket watch cylinders, 3011. air inlet port, 3012. return-air hole, 3013. piston rod, 302. pull bar, 3021. back-up ring, 303. locating sleeve, 3031. set ring, 3032. install only mouth, 304. sealing-ring, 4. inflation mechanism, 401. gas-filled valve joints, 402. filling channel, 403. inflation through holes, 5. switching mechanism, 501. upset cylinders, 502. tooth bar, 503. gear, 504. rack tube, 5041. notch, 6. web plate, 601. through hole, 7. sway brace, 8. hinged axle, 9. connect post, 10. bearing pin, 11. brackets, 12. connecting rods, 13. tube stubs.
Embodiment
In FIG, a kind of gas meter leak tightness detection device, it comprises a liquid pool 1, a plate 6, some pocket watch sealing mechanisms 3 and inflation mechanism 4. Wherein, liquid pool 1 can be filled with detection liquid, spacious on its Chi Kou.
For improving the stability of liquid pool 1, as shown in Figure 1, liquid pool 1 is weldingly fixed on a support 2.
In FIG, being welded and fixed two sway braces 7 on the inner side-wall being positioned at liquid pool 1 Chi Kou respectively, the two ends of web plate 6 are hinged on two sway braces 7 through hinged axle 8 respectively.
The quantity of pocket watch sealing mechanism 3 can set according to actual detection efficiency, and in the present embodiment, as shown in Figure 1, the quantity of pocket watch sealing mechanism 3 is set to six.
In fig. 2, each pocket watch sealing mechanism 3 comprises pocket watch cylinder 301, pull bar 302, locating sleeve 303 and a sealing-ring 304.
In Fig. 1, Fig. 2, pocket watch cylinder 301 is fixed with bolts the side at web plate 6, and the through hole 601 of the piston rod 3013 of pocket watch cylinder 301 on web plate 6 stretches another side to web plate 6.
As shown in Figure 2, having offered air inlet port 3011 and a return-air hole 3012 on the cylinder body of pocket watch cylinder 301 respectively, the gas entering air inlet port 3011 or return-air hole 3012 is for piston rod 3013 axially reciprocating.
In fig. 2, one end of pull bar 302 is connected with piston rod 3013 through screw thread, and on its other end, radial direction is provided with a back-up ring 3021. Locating sleeve 303 is sleeved on pull bar 302, and its one end is fixed in the inside groove of web plate 6, and the other end is provided with a set ring 3031. Sealing-ring 304 is sleeved on the pull bar 302 between back-up ring 3021 and set ring 3031. Wherein, sealing-ring 304 selects the elastomeric material that good springiness, wear resistance are strong, stopping property is high to make.
For ease of determining the suit location of combustion gas table and improve pocket watch efficiency, as shown in Figure 2, it is provided with a positioning spigot 3032 in locating sleeve 303 end.
In fig. 2, each inflation mechanism 4 comprises gas-filled valve joint 401, filling channel 402 and an inflation through hole 403, wherein, gas-filled valve joint 401 is assemblied on pocket watch cylinder 301, filling channel 402 is opened on piston rod 3013, inflation through hole 403 is opened on pull bar 302, and gas-filled valve joint 401 is connected with filling channel 402, inflation through hole 403.
For ease of the detection liquid driving combustion gas table to immerse, depart from liquid pool 1, it is achieved the automatization of combustion Natural gas meter inspection, as shown in Figure 1, the present invention also comprises a switching mechanism 5, and this switching mechanism 5 comprises upset cylinder 501, tooth bar 502 and a gear 503.
In FIG, upset cylinder 501 is fastened on through bolt on the outer side wall of liquid pool 1 Chi Kou, and tooth bar 502 is connected on the piston rod of upset cylinder 501 and stretches the Chi Kou place to liquid pool 1; Gear 503 is fixed on web plate 6, and itself and tooth bar 502 engage each other; Upset cylinder 501 drives tooth bar 502 driving gear 503 to relatively rotate through its piston rod, orders about web plate 6 and overturns between its pocket watch operation position to sealing detection station. It should be noted that, flip angle between operation position and sealing detection station can set according to needs of production, in the present embodiment, the angle between the pocket watch operation position of web plate 6, sealing detection station and horizontal plane is respectively 0 ° ,-90 °, and namely its flip angle is set as 90 °.
For saving material, improve upset efficiency, as shown in Figure 1, the preferably 90 ° of toothed segment of the flip angle between gear 503 respective operations station and sealing detection station.
For protection tooth bar, improve safety in utilization; a rack tube 504 coaxially it is provided with in the periphery of tooth bar 502; one end of this rack tube 504 is fastened on liquid pool 1 inner side-wall through bolt; the other end corresponding gear 503 has a notch 5041; gear 503 stretches into rack tube 504 by notch 5041, with tooth bar 502 engaged transmission.
For improving pocket watch sealing mechanism 3 when rotary movement to the pocket watch stability of combustion gas table, as shown in Figure 1, it is fixedly connected with a bracket 11 through connecting post 9 in the side of web plate 6, on the two ends of bracket 11, correspondence is welded with bearing pin 10 respectively, and between this bearing pin 10 and hinged axle 8, hinge fills a connecting rod 12 respectively. Bracket 11 can be combustion gas table and provides effectively support.
The present invention is in use, operation web plate 6 is in the pocket watch operation position of level, two tube stubs 13 of combustion gas table are plugged on two adjacent pocket watch sealing mechanisms 3 respectively, tube stub 13 end leans on the positioning spigot 3032 being provided with in locating sleeve 303 end, and the set ring 3031 of pull bar 302, sealing-ring 304 and locating sleeve 303 end stretches in the inner chamber of tube stub 13; It is inner that the return-air hole 3012 of control gas on pocket watch cylinder 301 cylinder body enters pocket watch cylinder 301, piston rod 3013 axially replys motion, piston rod 3013 drives pull bar 302 to slide to locating sleeve 303, the set ring 3031 that back-up ring 3021 and locating sleeve 303 end that pull bar 302 end is provided with is provided with extrudes sealing-ring 304, sealing-ring 304 is made to produce extruding distortion, again because pull bar 302 has certain rigidity, therefore sealing-ring 304 produces squeezing action power with the surface of internal cavity of tube stub 13, combustion gas table is directly hung in the air by pull bar 302, it is achieved pocket watch sealing function. Because combustion gas table surrounding is not by contact external force effect, thus effectively avoid the mistake inspection because external contact force factor causes, missing inspection. Handling upset cylinder 501 drives tooth bar 502 driving gear 503 to relatively rotate through its piston rod, order about web plate 6 and turn to detection station, now, combustion gas table submerge liquid pool 1 detection liquid in, in combustion gas table, it is filled with pressed gas by inflation mechanism 4, observes in detection liquid and whether have bubble to produce; After detection, stop in combustion gas table, being filled with pressed gas, reverse drive switching mechanism 5, make combustion gas table depart from test solution; It is inner that the control air inlet port 3011 of gas on pocket watch cylinder 301 cylinder body enters pocket watch cylinder 301, the axial stretching of piston rod 3013, and pull bar 302 is slipped away locating sleeve 303, and sealing-ring 304 recovers original state, is taken off by combustion gas table.
Present configuration is reasonable in design, and detection is reliable, detection broad view, detection efficiency height.
Claims (7)
1. a gas meter leak tightness detection device, it comprises a liquid pool, a plate, some pocket watch sealing mechanisms and inflation mechanism, the Chi Kou of liquid pool opens, it is characterized in that: be respectively equipped with two sway braces on the inner side-wall of liquid pool Chi Kou, the two ends of described web plate are hinged on two sway braces through hinged axle respectively; Each pocket watch sealing mechanism comprises a pocket watch cylinder, a pull bar, a locating sleeve and a sealing-ring, described pocket watch cylinder is arranged on the side of web plate, the through hole of the piston rod of pocket watch cylinder on web plate stretches another side to web plate, the cylinder body of pocket watch cylinder is offered an air inlet port and a return-air hole respectively, has entered the gas driven piston bar motion of air inlet port or return-air hole; One end of described pull bar is connected with piston rod, and the other end is provided with a back-up ring; Described locating sleeve is sleeved on pull bar, and its one end is fixed on web plate, and the other end is provided with a set ring;On the pull bar of described ring set between back-up ring and set ring; Each inflation mechanism comprises the inflation through hole that a gas-filled valve joint, being arranged on pocket watch cylinder is offered filling channel on the piston rod and and is opened on pull bar, and described gas-filled valve joint is connected with filling channel, inflation through hole.
2. a kind of gas meter leak tightness detection device according to claim 1, it is characterized in that: it also comprises a switching mechanism, described switching mechanism comprises a upset cylinder, a tooth bar and a gear, described upset cylinder is fixed on the outer side wall of liquid pool Chi Kou, and described tooth bar is connected on the piston rod of upset cylinder and stretches the Chi Kou place to liquid pool; Described gear is fixed on web plate, and itself and tooth bar engage each other; Described upset cylinder drives rack drives gear to relatively rotate through its piston rod, orders about web plate and overturns between its pocket watch operation position to sealing detection station.
3. a kind of gas meter leak tightness detection device according to claim 1 and 2, it is characterized in that: it also comprises a bracket, through connecting, post is fixedly connected with the side of described web plate in the side of this bracket, on the two ends of bracket, correspondence is provided with bearing pin respectively, and between this bearing pin and described hinged axle, hinge fills a connecting rod respectively.
4. a kind of gas meter leak tightness detection device according to claim 2, it is characterised in that: being coaxially provided with a rack tube in the periphery of described tooth bar, one end of this rack tube is fixed on liquid pool inner side-wall, and the other end corresponding gear has offered a notch.
5. a kind of gas meter leak tightness detection device according to claim 2, it is characterised in that: the angle between the pocket watch operation position of described web plate, sealing detection station and horizontal plane is respectively 0 ° ,-90 °.
6. a kind of gas meter leak tightness detection device according to claim 1, it is characterised in that: it is provided with a positioning spigot in described locating sleeve end.
7. a kind of gas meter leak tightness detection device according to claim 1, it is characterised in that: described liquid pool is fixed on a support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175927.8A CN105675220A (en) | 2016-03-27 | 2016-03-27 | Gas meter leak tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175927.8A CN105675220A (en) | 2016-03-27 | 2016-03-27 | Gas meter leak tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105675220A true CN105675220A (en) | 2016-06-15 |
Family
ID=56224190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610175927.8A Pending CN105675220A (en) | 2016-03-27 | 2016-03-27 | Gas meter leak tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105675220A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827549A (en) * | 2018-07-20 | 2018-11-16 | 丹东科泰仪器仪表有限公司 | Detect gas meter leak tightness measuring device |
| CN112649078A (en) * | 2020-12-31 | 2021-04-13 | 宜宾机电一体化研究所 | Clamping structure and suspension sealing structure for gas meter detection device |
-
2016
- 2016-03-27 CN CN201610175927.8A patent/CN105675220A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827549A (en) * | 2018-07-20 | 2018-11-16 | 丹东科泰仪器仪表有限公司 | Detect gas meter leak tightness measuring device |
| CN112649078A (en) * | 2020-12-31 | 2021-04-13 | 宜宾机电一体化研究所 | Clamping structure and suspension sealing structure for gas meter detection device |
| CN112649078B (en) * | 2020-12-31 | 2024-03-15 | 宜宾机电一体化研究所 | Clamping structure and hanging sealing structure for gas meter detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |
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| WD01 | Invention patent application deemed withdrawn after publication |