CN205254832U - Gas meter leakproofness detects with tight structure of quick clamp - Google Patents
Gas meter leakproofness detects with tight structure of quick clamp Download PDFInfo
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- CN205254832U CN205254832U CN201520932341.2U CN201520932341U CN205254832U CN 205254832 U CN205254832 U CN 205254832U CN 201520932341 U CN201520932341 U CN 201520932341U CN 205254832 U CN205254832 U CN 205254832U
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- half round
- round nut
- spiral
- gas meter
- quick
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Abstract
The utility model discloses a gas meter leakproofness detects with tight structure of quick clamp, include to be used for supporting tracheal fixed semicircle nut through the gas -pipe thread section that the opening top of fixed semicircle nut is equipped with a movable semicircle nut that only can reciprocate, fixed semicircle nut and activity semicircle nut are used for forming through screw -thread fit tightly to the clamp of gas -pipe thread section, and activity semicircle nut upper end is connected with quick clamping mechanism. Preferred, quick clamping mechanism include the spiral screw up with eccentric wheel or cam compact structure. The beneficial effects of the utility model are that, simple structure, it is various informative, press from both sides tightly reliably, and difficult formation the gas -pipe thread hurts.
Description
Technical field
The utility model patent relates to a kind of Natural gas meter inspection clamping device, particularly a kind of gas meter sealing inspectionSurvey and use Quick-clamped structure.
Background technology
Gas meter is the instrument for measuring gas consumption, and metering is arranged in watchcase with movement, and gas meter is by air inletPipe is connected with source of the gas and gas equipment end respectively with escape pipe. The type of attachment of the tracheae of existing family expenses gas meter is logicalStanding being set to is threaded, and therefore, the tracheae of gas meter has external thread structure, with respectively with source of the gas with use gasEquipment end pipeline connects. The sealing of gas meter watchcase not only directly affects metering accuracy, the more important thing is and relates toAnd use gas safety. For this reason, before dispatching from the factory, gas meter needs to carry out sealing propertytest. Because gas meter watchcase is thin-walledShell structure, detects fixing can only being chosen on tracheae. Existing installation way is, in gas-pipe thread sectionSuit is with nut, and carry out watchcase and fix by straining or compress the axially displaced mode of this nut restriction nut,The thrust becoming to resist sealing detection end socket his-and-hers watches hull shape. It is loaded down with trivial details that it clamps auxiliary operation, and easily cause tracheaeScrew thread is pulled, particularly in the time that two nuts screw togather position front-back staggered, because of axial limiting bearing distribution inequalityAnd it is particularly outstanding. For this reason, require further improvement.
Summary of the invention
The purpose of this utility model is exactly for the deficiencies in the prior art, provide a kind of simple in structure, clamping canLean on, and be difficult for gas-pipe thread to form the gas meter sealing propertytest Quick-clamped structure of injury.
For achieving the above object, the utility model adopts following technical scheme.
A kind of gas meter sealing propertytest Quick-clamped structure, comprises for supporting tracheae by gas-pipe thread sectionFix half round nut, the opening top of fixing half round nut is provided with a movable semicircle spiral shell moving up and down onlyMother, fixes half round nut and movable half round nut for form the clamping to gas-pipe thread section by threaded engagement,Movable half round nut upper end is connected with quick clamping mechanism.
The utility model that adopts aforementioned techniques scheme, gas meter watchcase is by two of threaded engagement in gas-pipe thread sectionIndividual semicircle nut clip fastens, and it is solid to realize the synchronous clamping of two tracheaes by quick clamping mechanism and connecting plateFixed, its clamping is firmly leaned on, thereby can effectively reduce or avoid compression or sealing propertytest time, to gas-pipe threadDamage, and clamp speeds is fast.
Preferably, described quick clamping mechanism comprises that spiral tightens bar, and spiral is tightened bar by front end and described workMoving half round nut connects, 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 ° and be more than or equal to 75 ° by two sections of helicla flutes and a lead angle lead angle αInterlude helicla flute composition; Straight trough or interlude helicla flute are communicated with two sections of helicla flutes, in groove, are slidably matchedThere is the fixing guide finger in position. With placing or take out when watchcase, movable half round nut with fix half round nutBetween there is enough large space, and clamp and unclamp rapidly.
Further preferred, two sections of spiral fluted lead angles in described groove are between 3 °～7 °. WithMake movable half round nut in the position that clamps or exit, spiral is tightened bar in self-locking state. Guarantee watchcase folderTight reliable.
Further preferred, described connecting plate and spiral are tightened bar and are formed removable fixing company by helicitic textureConnect. So that dismounting, maintaining and replacing.
Preferably, described quick clamping mechanism comprises the push rod being slidably located in fixing ram seat, pushes awayBar front end is connected with described connecting plate by front end, is set with the bullet between ram seat and connecting plate on push rodSpring, putting back-end butt has eccentric wheel or cam, and eccentric wheel or cam are connected to admittedly by bearing pin is rotatingOn fixed support. To rotate the compression of tracheae on formation activity half round nut his-and-hers watches shell by eccentric wheel or cam,Spring reset exits fast traveling nut is backed out. It is easy to operate, rapidly, fast
Preferably, described fix to be formed with between half round nut and movable half round nut lead by leadGuide frame. Cause screw thread on tracheae to be weighed wounded to avoid traveling nut dislocation, and compress reliable.
The beneficial effects of the utility model are, simple in structure, various informative, reliable clamping, and be difficult for gasGas thread forms injury.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation that in the utility model embodiment 1, spiral is tightened bar.
Fig. 3 is the structural representation that in the utility model embodiment 2, spiral is tightened bar.
Fig. 4 is the structural representation in the utility model embodiment 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but therefore the utility model is not limitAmong described scope of embodiments.
Embodiment 1, referring to Fig. 1, Fig. 2, a kind of gas meter sealing propertytest Quick-clamped structure, comprises useIn half round nut 1 of fixing that supports tracheae by gas-pipe thread section, the opening top of fixing half round nut 1 is provided withOne movable half round nut 2 moving up and down only, fixes half round nut 1 and movable half round nut 2 for passing throughThreaded engagement forms the clamping to gas-pipe thread section, and movable half round nut 2 upper ends are connected with quick clamping mechanism.
Wherein, quick clamping mechanism comprises that spiral tightens bar 5, and spiral is tightened bar 5 by front end and described activity halfRound nut 2 connects, and movable half round nut 2 is tightened bar 5 with spiral and formed removable fixing by helicitic textureConnect, specifically tighten by spiral the spiro rod section that diameter that bar 5 front ends form is slightly smaller than main paragraph and be screwed on workOn moving half round nut 2, and be locked by hex nut; Spiral is tightened on bar 5 and is formed with groove 5a, recessedGroove 5a is less than 90 ° and be more than or equal to the centre of 75 ° by two sections of helicla flutes and a lead angle lead angle αSection helicla flute composition; Straight trough or interlude helicla flute are communicated with two sections of helicla flutes, in groove 5a, are sliding combined withThe guide finger 4 that position is fixing; Two sections of spiral fluted lead angle β in groove 5a are between 3 °～7 °;Fix half round nut 1 both ends and be fixed with respectively a lead 4, movable half round nut 2 is provided with this leadsTo the pilot hole 2a of post 3 matched in clearance, form so that fix between half round nut 1 and movable half round nut 2There is the guide frame leading by lead 3.
The lead 3 of the present embodiment also can be installed on movable half round nut 2, fixes phase on half round nut 1Answer position that described pilot hole is set.
Embodiment 2, referring to 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, referring to Fig. 4, described quick clamping mechanism comprises and is slidably located at fixing ram seat 6On push rod 7, push rod 7 front ends are connected with described connecting plate 3 by front end, on push rod 7, are set with and are positioned at push rodSpring 8 between seat 6 and connecting plate 3, push rod 7 rear end butts have eccentric wheel 9, and eccentric wheel 9 passes through bearing pin10 rotating being connected on fixing support 11, eccentric wheel 9 is connected with the handle for pulling its rotation12。
Support 11 in the present embodiment can form one with ram seat 6; Eccentric wheel 9 in the present embodiment can be adoptedAlternative with cam.
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 utility model in detail. Should be appreciated that the common of this areaTechnical staff just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art pass through on the basis of existing technology according to design of the present utility modelThe available technical scheme of logical analysis, reasoning, or a limited experiment, all should be by claims instituteIn definite protection domain.
Claims (6)
1. a gas meter sealing propertytest Quick-clamped structure, is characterized in that, comprises for passing through tracheaeWhat thread segment supported tracheae fixes half round nut (1), and the opening top of fixing half round nut (1) is only provided with oneMovable half round nut moving up and down (2), fixes half round nut (1) and movable half round nut (2) and usesIn form the clamping to gas-pipe thread section by threaded engagement, movable half round nut (2) upper end is connected with fastClamp mechanism.
2. gas meter sealing propertytest Quick-clamped structure according to claim 1, is characterized in that,Described quick clamping mechanism comprises that spiral tightens bar (5), and spiral is tightened bar (5) by front end and described activity halfRound nut (2) connects, and spiral is tightened on bar (5) and is formed with groove (5a), and groove (5a) is by two sections of spiral shellsSpin slot and straight trough composition; Or groove (5a) is by two sections of helicla flutes and a lead angle lead angle αBe less than 90 ° and be more than or equal to the interlude helicla flute composition of 75 °; Straight trough or interlude helicla flute are by two sections of spiral shellsSpin slot is communicated with, and is sliding combined with the fixing guide finger in position (4) in groove (5a).
3. gas meter sealing propertytest Quick-clamped structure 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. gas meter sealing propertytest Quick-clamped structure according to claim 2, is characterized in that,Described movable half round nut (2) is tightened bar (5) with spiral and is formed removable being fixedly connected with by helicitic texture.
5. gas meter sealing propertytest Quick-clamped structure according to claim 1, is characterized in that,Described quick clamping mechanism comprises the push rod (7) being slidably located in fixing ram seat (6), push rod (7)Front end is connected with described movable half round nut (2) by front end, is set with and is positioned at ram seat (6) on push rod (7)And the spring (8) between movable half round nut (2), push rod (7) rear end butt has eccentric wheel or cam (9),Eccentric wheel or cam (9) are connected on fixing support (11) by bearing pin (10) is rotating.
6. use fast according to the gas meter sealing propertytest described in any one claim in claim 1～5Clamping structure, is characterized in that, describedly fixes shape between half round nut (1) and movable half round nut (2)Become to have by the guide frame of lead (3) guiding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932341.2U CN205254832U (en) | 2015-11-21 | 2015-11-21 | Gas meter leakproofness detects with tight structure of quick clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932341.2U CN205254832U (en) | 2015-11-21 | 2015-11-21 | Gas meter leakproofness detects with tight structure of quick clamp |
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| Publication Number | Publication Date |
|---|---|
| CN205254832U true CN205254832U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520932341.2U Active CN205254832U (en) | 2015-11-21 | 2015-11-21 | Gas meter leakproofness detects with tight structure of quick clamp |
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| Country | Link |
|---|---|
| CN (1) | CN205254832U (en) |
Cited By (4)
| 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 |
| CN108775843A (en) * | 2018-07-10 | 2018-11-09 | 安徽悦众车身装备有限公司 | A kind of rectangular vehicle fuel tank cap detecting tool |
| CN109882744A (en) * | 2019-04-25 | 2019-06-14 | 韦玉健 | A kind of fast accurate is not necessarily to the device for detecting sealability to pressurize to device |
| CN112350182A (en) * | 2020-11-06 | 2021-02-09 | 国网河北省电力有限公司邢台市任泽区供电分公司 | Protection device for power distribution equipment of power system |
-
2015
- 2015-11-21 CN CN201520932341.2U patent/CN205254832U/en active Active
Cited By (5)
| 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 |
| CN108775843A (en) * | 2018-07-10 | 2018-11-09 | 安徽悦众车身装备有限公司 | A kind of rectangular vehicle fuel tank cap detecting tool |
| CN109882744A (en) * | 2019-04-25 | 2019-06-14 | 韦玉健 | A kind of fast accurate is not necessarily to the device for detecting sealability to pressurize to device |
| CN112350182A (en) * | 2020-11-06 | 2021-02-09 | 国网河北省电力有限公司邢台市任泽区供电分公司 | Protection device for power distribution equipment of power system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |