CN105258860A - Gas meter sealing performance detection apparatus with duplex quick clamping device - Google Patents
Gas meter sealing performance detection apparatus with duplex quick clamping device Download PDFInfo
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- CN105258860A CN105258860A CN201510810162.6A CN201510810162A CN105258860A CN 105258860 A CN105258860 A CN 105258860A CN 201510810162 A CN201510810162 A CN 201510810162A CN 105258860 A CN105258860 A CN 105258860A
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- gas meter
- half round
- duplex
- quick clamping
- gas
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Abstract
The invention discloses a gas meter sealing performance detection apparatus with a duplex quick clamping device. The gas meter sealing performance detection apparatus comprises a detection unit and the duplex quick clamping device; the duplex quick clamping device is provided with two fixed semicircular nuts which are respectively used for supporting two gas pipes through gas pipe threaded sections; two moving semicircular nuts which can only move upwards and downwards are arranged above the openings of the two fixed semicircular nuts; the fixed semicircular nuts and the moving semicircular nuts can clamp the gas pipe threaded sections based on threaded fit; the two moving semicircular nuts are connected with each other through a connecting plate; the upper end of the connecting plate is connected with the quick clamping mechanism; and the preferably, the quick clamping mechanism comprises a screw tightening and eccentric wheel or cam pressing structure. The gas meter sealing performance detection apparatus of the invention has the advantages of simple structure, diverse forms, reliable clamping, and little possibility of damaging gas pipe screw threads.
Description
Technical field
Patent of the present invention relates to a kind of gas meter sealing detection equipment, particularly a kind of gas meter leak-testing apparatus with duplex fast fixture.
Background technology
Gas meter is the instrument for measuring gas consumption, and metering movement is arranged in watchcase, and gas meter is connected with source of the gas and gas equipment end with escape pipe respectively by draft tube.The type of attachment of the tracheae of existing domestic gas meter is arranged to be threaded usually, and therefore, the tracheae of gas meter has external thread structure, to be connected with source of the gas and gas equipment end pipeline respectively.The sealing of gas meter watchcase not only directly affects metering accuracy, and prior relating to uses gas safety.For this reason, need to carry out sealing propertytest before gas meter dispatches from the factory.Checkout equipment comprises detecting unit and gas meter positioning clamping device, and detecting unit is used for, by after the turnover tracheae shutoff of gas meter sealing, inflating in watchcase, the leakage rate of test watchcase in setting-up time or Pressure Drop.Existing detecting unit technical perfection, can realize automatic plugging easily, inflate and the warning that exceeds standard.But because gas meter watchcase is thin-wall case structure, the clamping of detection is fixing can only be selected on tracheae.Existing installation way is, gas-pipe thread section is set with nut, carries out watchcase and fixes by straining or compress the axially displaced mode of this nut restriction nut, to resist the thrust that sealing detection end socket his-and-hers watches hull shape becomes.The non-productive operation of its clamping is loaded down with trivial details, and easily causes gas-pipe thread to pull, particularly when two nuts screw togather position front-back staggered, particularly outstanding because axial limiting bearing distribution is uneven.For this reason, require further improvement.
Summary of the invention
Object of the present invention is exactly for the deficiencies in the prior art, provides that a kind of structure is simple, reliable clamping, and not easily gas-pipe thread is formed to the gas meter leak-testing apparatus with duplex fast fixture of injury.
For achieving the above object, the present invention adopts following technical scheme.
A kind of gas meter leak-testing apparatus with duplex fast fixture, comprise detecting unit and duplex fast fixture, duplex fast fixture is provided with and is respectively used to support two of two tracheaes by gas-pipe thread section and fixes half round nut, two overthe openings fixing half round nut are respectively equipped with two only movable half round nuts moving up and down, fix half round nut and movable half round nut for being formed the clamping to gas-pipe thread section by threaded engagement, two movable half round nuts are connected by a plate, and web joint upper end is connected with quick clamping mechanism.
Adopt the present invention of preceding solution, for during to Natural gas meter inspection, gas meter watchcase is fastened by two semicircle nut clip on the duplex fast fixture of threaded engagement in gas-pipe thread section, and the synchronous clamping realizing two tracheaes by quick clamping mechanism and web joint is fixed, its clamping is firmly leaned on, thus when can effectively reduce or avoid compression or sealing propertytest, to the damage of gas-pipe thread, and clamp speeds is fast.
Preferably, described quick clamping mechanism comprises spiral and tightens bar, and spiral is tightened bar and is connected with described web joint by front end, and spiral is tightened on bar and is formed with groove, and groove is made up of two sections of helicla flutes and a straight trough; Or groove is less than 90 ° by two sections of helicla flutes and a lead angle lead angle α and the interlude helicla flute being more than or equal to 75 ° forms; Two sections of helicla flutes are communicated with by straight trough or interlude helicla flute, are sliding combined with the guide finger that position is fixing in groove.With when placing or take out watchcase, movable half round nut and fix between half round nut there is enough large space, and clamping and unclamping rapidly.
Preferred further, two sections of spiral fluted lead angles in described groove are between 3 ° ~ 7 °.To make movable half round nut in the position clamped or exit, spiral is tightened bar and is in self-locking state.Guarantee watchcase reliable clamping.
Preferred further, described web joint and spiral are tightened bar and are formed removable being fixedly connected with by helicitic texture.So that dismounting, maintaining and replacing.
Preferably, described quick clamping mechanism comprises the push rod be slidably located in fixing ram seat, push rod front end is connected with described web joint by front end, push rod is set with the spring between ram seat and web joint, putting back-end abuts eccentric wheel or cam, and eccentric wheel or cam are connected on fixing support by bearing pin is rotating.To be rotated the compression of tracheae on formation activity half round nut his-and-hers watches shell by eccentric wheel or cam, spring reset exits fast and traveling nut is backed out.It is easy to operate, rapidly, fast
Preferably, describedly the guide frame being formed through guidepost between half round nut and movable half round nut and leading is fixed.Cause screw thread on tracheae to be weighed wounded to avoid traveling nut to misplace, and compress reliable.
The invention has the beneficial effects as follows, structure is simple, various informative, reliable clamping, and not easily to gas-pipe thread formed injury.
Accompanying drawing explanation
Fig. 1 is the structural representation of 1 duplex fast fixture in the embodiment of the present invention.
Fig. 2 is the structural representation that in the embodiment of the present invention 1, bar tightened by spiral.
Fig. 3 is the structural representation that in the embodiment of the present invention 2, bar tightened by spiral.
Fig. 4 is the structural representation of 1 duplex fast fixture in the embodiment of the present invention 3.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated, but therefore do not limit the present invention among described scope of embodiments.
Embodiment 1, see Fig. 1, Fig. 2, a kind of gas meter leak-testing apparatus with duplex fast fixture, comprise detecting unit and duplex fast fixture, duplex fast fixture is provided with and is respectively used to support two of two tracheaes by gas-pipe thread section and fixes half round nut 1, two overthe openings fixing half round nut 1 are respectively equipped with two only movable half round nuts 2 moving up and down, fix half round nut 1 and movable half round nut 2 for being formed the clamping to gas-pipe thread section by threaded engagement, two movable half round nuts 2 are connected by a plate 3, web joint 3 upper end is connected with quick clamping mechanism.
Wherein, quick clamping mechanism comprises spiral and tightens bar 5, spiral is tightened bar 5 and is connected with described web joint 3 by front end, web joint 3 and spiral are tightened bar 5 and are formed removable being fixedly connected with by helicitic texture, the diameter tightening the formation of bar 5 front end especially by spiral is slightly smaller than the spiro rod section of main paragraph and is screwed on spiro rod section through the hexagonal nut in the part of web joint 3, and hexagonal nut is fixed web joint 3; Spiral is tightened on bar 5 and is formed with groove 5a, and two sections of helicla flutes and a lead angle lead angle α are less than 90 ° and are more than or equal to the interlude helicla flute composition of 75 °, and two sections of helicla flutes are communicated with by straight trough or interlude helicla flute; The guide finger 4 that position is fixing is sliding combined with in groove 5a; Two sections of spiral fluted lead angle β in groove 5a are between 3 ° ~ 7 °; Fix the guide frame being formed through guidepost 13 between half round nut 1 and movable half round nut 2 and leading; Specifically comprise and be installed in the guidepost 13 that fixes half round nut 1 outer end respectively, movable half round nut 2 is provided with the pilot hole 2a with this guidepost 13 clearance fit.
The guidepost 13 of the present embodiment also can be installed on movable half round nut 2, fixes corresponding site on half round nut 1 and arranges described pilot hole.
Embodiment 2, see Fig. 3, described groove 5a is made up of two sections of helicla flutes and a straight trough.
All the other structures of the present embodiment are identical with embodiment 1, do not repeat them here.
Embodiment 3, see Fig. 4, described quick clamping mechanism comprises the push rod 7 be slidably located in fixing ram seat 6, push rod 7 front end is connected with described web joint 3 by front end, push rod 7 is set with the spring 8 between ram seat 6 and web joint 3, push rod 7 rear end abuts eccentric wheel 9, and eccentric wheel 9 is connected on fixing support 11 by bearing pin 10 is rotating, and eccentric wheel 9 is connected with the handle 12 rotated for pulling it.
Support 11 in the present embodiment can form one with ram seat 6; Eccentric wheel 9 in the present embodiment can adopt cam to substitute.
All the other structures of the present embodiment are identical with embodiment 1 or 2, do not repeat them here.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (6)
1. one kind has the gas meter leak-testing apparatus of duplex fast fixture, comprise detecting unit and duplex fast fixture, it is characterized in that, described duplex fast fixture is provided with and is respectively used to support two of two tracheaes by gas-pipe thread section and fixes half round nut (1), two overthe openings fixing half round nut (1) are respectively equipped with two only movable half round nuts (2) moving up and down, fix half round nut (1) and movable half round nut (2) for being formed the clamping to gas-pipe thread section by threaded engagement, two movable half round nuts (2) are connected by a plate (3), web joint (3) upper end is connected with quick clamping mechanism.
2. the gas meter leak-testing apparatus with duplex fast fixture according to claim 1, it is characterized in that, described quick clamping mechanism comprises spiral and tightens bar (5), spiral is tightened bar (5) and is connected with described web joint (3) by front end, spiral is tightened on bar (5) and is formed with groove (5a), and groove (5a) is made up of two sections of helicla flutes and a straight trough; Or groove (5a) is less than 90 ° by two sections of helicla flutes and a lead angle lead angle α and the interlude helicla flute being more than or equal to 75 ° forms; Two sections of helicla flutes are communicated with by straight trough or interlude helicla flute, are sliding combined with the guide finger (4) that position is fixing in groove (5a).
3. the gas meter leak-testing apparatus with duplex fast fixture according to claim 2, is characterized in that, two sections of spiral fluted lead angle β in described groove (5a) are between 3 ° ~ 7 °.
4. the gas meter leak-testing apparatus with duplex fast fixture according to claim 2, is characterized in that, described web joint (3) and spiral are tightened bar (5) and formed removable being fixedly connected with by helicitic texture.
5. the gas meter leak-testing apparatus with duplex fast fixture according to claim 1, it is characterized in that, described quick clamping mechanism comprises the push rod (7) be slidably located in fixing ram seat (6), push rod (7) front end is connected with described web joint (3) by front end, push rod (7) is set with the spring (8) be positioned between ram seat (6) and web joint (3), push rod (7) rear end abuts eccentric wheel or cam (9), eccentric wheel or cam (9) are connected on fixing support (11) by bearing pin (10) is rotating.
6. according to the gas meter leak-testing apparatus with duplex fast fixture in Claims 1 to 5 described in any one claim, it is characterized in that, describedly fix the guide frame being formed through guidepost (13) between half round nut (1) and movable half round nut (2) and leading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810162.6A CN105258860A (en) | 2015-11-21 | 2015-11-21 | Gas meter sealing performance detection apparatus with duplex quick clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810162.6A CN105258860A (en) | 2015-11-21 | 2015-11-21 | Gas meter sealing performance detection apparatus with duplex quick clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105258860A true CN105258860A (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510810162.6A Pending CN105258860A (en) | 2015-11-21 | 2015-11-21 | Gas meter sealing performance detection apparatus with duplex quick clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105258860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622888A (en) * | 2016-12-14 | 2017-05-10 | 苏州博众精工科技有限公司 | Ring-shaped piece clamping mechanism |
| CN109514221A (en) * | 2018-12-14 | 2019-03-26 | 东华机械有限公司 | A kind of fitting device and control mode to move along a straight line and rotary motion is integrated |
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| CN201128117Y (en) * | 2007-11-20 | 2008-10-08 | 扬动股份有限公司 | Large-stroke helical quick clamping device |
| KR100902344B1 (en) * | 2008-08-22 | 2009-06-12 | 주식회사 대덕기술 | Clamping device for gas meter tester |
| CN101829970A (en) * | 2010-05-21 | 2010-09-15 | 宁海县海浴铝业有限公司 | Workpiece-pressing jig |
| CN202388284U (en) * | 2011-11-28 | 2012-08-22 | 浙江吉利汽车研究院有限公司 | Clamp |
| CN202869745U (en) * | 2012-09-24 | 2013-04-10 | 中宇建材集团有限公司 | Water test clamp for double-handle faucet |
| CN202886207U (en) * | 2012-10-20 | 2013-04-17 | 常州群星制冷设备有限公司 | High-pressure sealing device |
| US20130112448A1 (en) * | 2011-04-28 | 2013-05-09 | Hilti Aktiengesellschaft | Hand-held power tool |
| CN103273438A (en) * | 2013-04-27 | 2013-09-04 | 燕山大学 | Optical fiber fixing clamp |
| CN203282391U (en) * | 2013-05-22 | 2013-11-13 | 重庆市界石燃气设备有限公司 | Clamp for calibrating device of gas meter |
| CN103481220A (en) * | 2013-09-23 | 2014-01-01 | 北京北方车辆集团有限公司 | Cam type pressing device |
| CN204195668U (en) * | 2014-10-23 | 2015-03-11 | 采埃孚富奥底盘技术(长春)有限公司 | A kind of eccentric wheel press-loading apparatus |
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2015
- 2015-11-21 CN CN201510810162.6A patent/CN105258860A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128117Y (en) * | 2007-11-20 | 2008-10-08 | 扬动股份有限公司 | Large-stroke helical quick clamping device |
| KR100902344B1 (en) * | 2008-08-22 | 2009-06-12 | 주식회사 대덕기술 | Clamping device for gas meter tester |
| CN101829970A (en) * | 2010-05-21 | 2010-09-15 | 宁海县海浴铝业有限公司 | Workpiece-pressing jig |
| US20130112448A1 (en) * | 2011-04-28 | 2013-05-09 | Hilti Aktiengesellschaft | Hand-held power tool |
| CN202388284U (en) * | 2011-11-28 | 2012-08-22 | 浙江吉利汽车研究院有限公司 | Clamp |
| CN202869745U (en) * | 2012-09-24 | 2013-04-10 | 中宇建材集团有限公司 | Water test clamp for double-handle faucet |
| CN202886207U (en) * | 2012-10-20 | 2013-04-17 | 常州群星制冷设备有限公司 | High-pressure sealing device |
| CN103273438A (en) * | 2013-04-27 | 2013-09-04 | 燕山大学 | Optical fiber fixing clamp |
| CN203282391U (en) * | 2013-05-22 | 2013-11-13 | 重庆市界石燃气设备有限公司 | Clamp for calibrating device of gas meter |
| CN103481220A (en) * | 2013-09-23 | 2014-01-01 | 北京北方车辆集团有限公司 | Cam type pressing device |
| CN204195668U (en) * | 2014-10-23 | 2015-03-11 | 采埃孚富奥底盘技术(长春)有限公司 | A kind of eccentric wheel press-loading apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622888A (en) * | 2016-12-14 | 2017-05-10 | 苏州博众精工科技有限公司 | Ring-shaped piece clamping mechanism |
| CN106622888B (en) * | 2016-12-14 | 2019-07-05 | 博众精工科技股份有限公司 | Annular element clamping device |
| CN109514221A (en) * | 2018-12-14 | 2019-03-26 | 东华机械有限公司 | A kind of fitting device and control mode to move along a straight line and rotary motion is integrated |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |