CN204405252U - A kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure - Google Patents
A kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure Download PDFInfo
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- CN204405252U CN204405252U CN201420548194.4U CN201420548194U CN204405252U CN 204405252 U CN204405252 U CN 204405252U CN 201420548194 U CN201420548194 U CN 201420548194U CN 204405252 U CN204405252 U CN 204405252U
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- China
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- compensating device
- bearing pin
- straight tube
- air pressure
- end part
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Abstract
The utility model provides a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure, length compensating device center is socketed throughly and is provided with guiding bearing pin, guiding bearing pin be socketed with sleeve away from port compensating device one end, the rear end of sleeve arranges lock casting die, the other end termination of guiding bearing pin arranges packoff, and the below of guiding bearing pin is provided with mobile pressing table.It is simple that the utility model provides structure, can make compensating approach to ensure bubble-tight a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure to the error in length between the out-of-flatness in end socket of pipe fitting face and multitube.
Description
Technical field
The utility model relates to pipeline testing apparatus field, is specifically related to a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure.
Background technology
Pipe fitting need carry out air tightness test after it has been manufactured mostly, whether there is leak source to detect pipe fitting under the pressure of regulation.Current detection air tightness of pipe fitting usually cannot compress due to the port out-of-flatness of pipe fitting when multitube test and cause gas leakage, but not pipe fitting itself has gas leakage point, so just cause erroneous judgement, when having again multitube to test, the length difference existed between multitube causes short tube cannot be compacted and leak gas, and causes erroneous judgement.
And for example, Authorization Notice No. is the test device for air tightness of a kind of pipe fitting disclosed in the application for a patent for invention of number CN 102735404 A, comprise tank, it is characterized in that: the top of described tank is provided with frame moving up and down, the two ends of frame are respectively arranged with transversely movable support, two supports are respectively arranged with one group of mutually corresponding end sealing joint, end sealing joint is connected with air pump by tracheae.The problem of the test result erroneous judgement that the difference that this invention still cannot solve length between multitube and port flatness is brought.
Prior art has very high requirement when detection pipe fitting to the flatness of pipe port, not so cannot compress, also have requirement simultaneously to the consistance of the length of pipe fitting.If length has little difference such as cause short pipe fitting to compress when multitube detects and leak gas, but not the impermeability of short pipe fitting is defective, will cause erroneous judgement like this.
The utility model can carry out single correction by length compensating device to length, use port compensating device to carry out correction to port simultaneously, these two corrections are carried out simultaneously, and the utility model can multiple cascade, mutual interference would not be produced like this when multitube test, ensure that 0 False Rate of test effect, improve testing efficiency and accuracy.
Utility model content
It is simple that the utility model provides structure, can make compensating approach to ensure bubble-tight a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure to the error in length between the out-of-flatness in end socket of pipe fitting face and multitube.
In order to achieve the above object, the utility model adopts following technical scheme: comprise for adapting to length of straight pipe, the length compensating device of correction is carried out to length of straight pipe and is arranged on described length compensating device, for carrying out the port compensating device of correction to the flatness of the straight tube mouth of pipe, it is characterized in that: described length compensating device center is socketed the direction of motion be provided with for the described length compensating device that leads throughly, guarantee being swift in response and the guiding bearing pin of Position location accuracy of described length compensating device, described guiding bearing pin be socketed with described guiding bearing pin supporting away from described port compensating device one end, can when the work of described length compensating device the sleeve of rock-steady structure, the rear end of described sleeve is provided with and fits through with described guide finger shaft locking to compress the lock casting die of described sleeve with described guiding bearing pin, the other end termination of described guiding bearing pin is provided with to coordinate with the filling liquid in pipeline thus complete and compresses from pipe interior the packoff that inwall carrys out closed conduit successively, the below of described guiding bearing pin is provided with can by the mobile mobile pressing table revised length correction and increase tightness.
Preferred as one, described length compensating device comprises radial section diameter by end to the spring being provided with described port compensating device end and diminishing, and the spacing of spring is also diminished to being provided with described port compensating device end by end.
Preferred as one, described length compensating device also comprises the gap be arranged in the middle of described spring, can provide the damping gasket of damping action for the deformation process of described spring, the diameter of described damping gasket is identical with the diameter of the radial section of the described spring of its position.
Preferred as one, described guiding bearing pin smooth surface, and its overall diameter is identical with the internal diameter at the minimum place of described spring.
Preferred as one, described damping gasket is socketed on guiding bearing pin, and described damping gasket offers the pad opening completing socket with described guiding bearing pin.
Preferred as one, the described pad opening of the damping gasket described in polylith is circumferentially arranged according to the offset angular of 30 ° same.
Preferred as one, described port compensating device comprises and is arranged on foremost, with the correction pad of port of steel pipe contact position and be arranged on described correction pad rear end and be used for gaining in strength the supporting steel plate playing and compress effect to described correction pad.
Preferred as one, described supporting steel plate core convexes to form convex bolt, and described convex bolt runs through described correction pad, and concentric with described correction pad.
Preferred as one, described mobile pressing table comprises transfer table, lower fixed station and pulley, and described pulley is arranged in the middle of described transfer table and described lower fixed station.
Preferred as one, described pulley is arranged with fixing central axis.
To sum up, the utility model has the following advantages:
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment damping gasket;
Number in the figure is as follows:
1-length compensating device, 2-port compensating device, 3-lead that bearing pin, 4-sleeve, 5-lock casting die, 6-packoff, 7-move fixed station, 703-pulley under pressing table, 8-pressure transducer, 101-spring, 102-damping gasket, 1021-pad opening, 201-correction pad, 202-supporting steel plate, the convex bolt of 2021-, 701-transfer table, 702-.
Embodiment
Below in conjunction with accompanying drawing, with embodiment, the utility model is described in further detail.
As shown in Figure 1, the present embodiment comprises for adapting to length of straight pipe, the length compensating device 1 of correction is carried out to length of straight pipe and is arranged on length compensating device 1, for carrying out the port compensating device 2 of correction to the flatness of the straight tube mouth of pipe, length compensating device 1 center is socketed the direction of motion be provided with for the length compensating device 1 that leads throughly, guarantee being swift in response and the guiding bearing pin 3 of Position location accuracy of length compensating device 1, guiding bearing pin 3 be socketed with the bearing pin 3 that leads supporting away from port compensating device 2 one end, can when length compensating device 1 works the sleeve 4 of rock-steady structure, the rear end of sleeve 4 is provided with to fit through with the bearing pin 3 that leads locks with the bearing pin 3 that leads the lock casting die 5 carrying out clamp sleeve, lock casting die 5 is the nut of two same sizes, the end of guiding bearing pin 3 is provided with the screw rod with nut screw connection.The other end termination of guiding bearing pin 3 is provided with to coordinate with the filling liquid in pipeline thus complete and compresses from pipe interior the packoff 6 that inwall carrys out closed conduit successively, and the below of guiding bearing pin 3 is provided with can by the mobile mobile pressing table 7 revising length correction and increase tightness.
As shown in Figure 1, the length compensating device 1 of the present embodiment comprises radial section diameter by end to the spring 101 being provided with port compensating device 2 end and diminishing, and the spacing of spring 101 is also diminished to being provided with port compensating device 2 end by end.Length compensating device 1 also comprises the gap be arranged in the middle of spring 101, and can provide the damping gasket 102 of damping action for the deformation process of spring 101, the diameter of damping gasket 102 is identical with the diameter of the radial section of the spring 101 of its position.Guiding bearing pin 3 smooth surface, and its overall diameter is identical with the internal diameter at the minimum place of spring 101.
As shown in Figures 1 and 2, the damping gasket 102 of the present embodiment is socketed on guiding bearing pin 3, and damping gasket offers can snap in the pad opening 1021 that guiding bearing pin 3 completes socket.The pad opening 1021 of polylith damping gasket 102 is circumferentially arranged according to the offset angular of 30 ° same, and damping gasket adopts rubber sheet gasket.
As shown in Figure 1, the port compensating device 2 of the present embodiment comprises and is arranged on foremost, with the correction pad 201 of port of steel pipe contact position and be arranged on correction pad 201 rear end and be used for gaining in strength the supporting steel plate 202 playing and compress effect to correction pad.Supporting steel plate 202 core convexes to form convex bolt 2021, convex bolt 2021 runs through correction pad 201, and it is concentric with correction pad 201, the other end of convex bolt 2021 removably connects mutually with packoff 6, packoff 6 is a rubber plug, and the shape of packoff and size all adjust according to the specification of institute's test tube part.
As shown in Figure 1, the mobile pressing table 7 of the present embodiment comprises transfer table 701, lower fixed station 702 and pulley 703, and it is middle with lower fixed station 702 that pulley 703 is arranged on transfer table 701.Pulley 703 is arranged with fixing central axis.The lower bottom of fixed station 702 is connected with the main body of checkout equipment, when work, pulley 703 rotates, transfer table 701 is driven to move forward, pressure transducer 8 is provided with between correction pad 201 and supporting steel plate 202, current compression dynamics can be judged, when the compression dynamics of the port of pipe fitting reaches preset value time, transfer table 701 stops mobile.
The utility model is revised so can test multiple pipe fitting simultaneously owing to can make the flatness of length and port all simultaneously, and do not need to pipe fitting batch and consistance have too high requirement.
More than illustrate it is only to explanation of the present utility model, those of ordinary skill in the art's can completely is made to implement this programme, but be not to restriction of the present utility model, those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this instructions, and these are all not creative amendments.As long as but be all subject to the protection of Patent Law in right of the present utility model.
Claims (10)
1. a minor diameter straight tube air pressure compactness test end part seal automatic compensation structure, comprise for adapting to length of straight pipe, the length compensating device (1) of correction is carried out to length of straight pipe and is arranged on described length compensating device (1), for carrying out the port compensating device (2) of correction to the flatness of the straight tube mouth of pipe, it is characterized in that: described length compensating device (1) center is socketed the direction of motion be provided with for described length compensating device (1) of leading throughly, guarantee being swift in response and the guiding bearing pin (3) of Position location accuracy of described length compensating device (1), described guiding bearing pin (3) be socketed with described guiding bearing pin (3) supporting away from described port compensating device (2) one end, can when the work of described length compensating device (1) sleeve (4) of rock-steady structure, the rear end of described sleeve (4) is provided with the lock casting die (5) fitting through with described guiding bearing pin (3) and lock to compress described sleeve with described guiding bearing pin (3), the other end termination of described guiding bearing pin (3) is provided with to coordinate with the filling liquid in pipeline thus complete and compresses from pipe interior the packoff (6) that inwall carrys out closed conduit successively, the below of described guiding bearing pin (3) is provided with can by the mobile mobile pressing table (7) revised length correction and increase tightness.
2. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 1, it is characterized in that: described length compensating device (1) comprises radial section diameter and holds to being provided with described port compensating device (2) spring (101) diminished by end, and the spacing of spring (101) is also diminished to being provided with described port compensating device (2) end by end.
3. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 2, it is characterized in that: described length compensating device (1) also comprises the gap be arranged in the middle of described spring (101), can provide the damping gasket (102) of damping action for the deformation process of described spring (101), the diameter of described damping gasket (102) is identical with the diameter of the radial section of the described spring (101) of its position.
4. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 3, it is characterized in that: described guiding bearing pin (3) smooth surface, and its overall diameter is identical with the internal diameter at described spring (101) minimum place.
5. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 4, it is characterized in that: described damping gasket (102) is socketed in guiding bearing pin (3), and described damping gasket offers the pad opening (1021) be socketed with described guiding bearing pin (3).
6. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 3, is characterized in that: the described pad opening (1021) of the damping gasket (102) described in polylith is circumferentially arranged according to the offset angular of 30 ° same.
7. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 1, it is characterized in that: described port compensating device (2) comprises and is arranged on foremost, with the correction pad (201) of port of steel pipe contact position and be arranged on described correction pad (201) rear end and be used for gaining in strength the supporting steel plate (202) playing and compress effect to described correction pad.
8. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 7, it is characterized in that: described supporting steel plate (202) core convexes to form convex bolt (2021), described convex bolt (2021) runs through described correction pad (201), and concentric with described correction pad (201).
9. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 1, it is characterized in that: described mobile pressing table (7) comprises transfer table (701), lower fixed station (702) and pulley (703), it is middle with described lower fixed station (702) that described pulley (703) is arranged on described transfer table (701).
10. a kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure according to claim 9, is characterized in that: described pulley (703) is arranged with fixing central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548194.4U CN204405252U (en) | 2014-09-23 | 2014-09-23 | A kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548194.4U CN204405252U (en) | 2014-09-23 | 2014-09-23 | A kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure |
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| Publication Number | Publication Date |
|---|---|
| CN204405252U true CN204405252U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420548194.4U Expired - Fee Related CN204405252U (en) | 2014-09-23 | 2014-09-23 | A kind of minor diameter straight tube air pressure compactness test end part seal automatic compensation structure |
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| CN (1) | CN204405252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215399B (en) * | 2014-09-23 | 2017-01-11 | 安吉恒盛热能机械有限公司 | Automatic compensating structure for end part sealing of small-diameter straight pipe in air pressure density test |
-
2014
- 2014-09-23 CN CN201420548194.4U patent/CN204405252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215399B (en) * | 2014-09-23 | 2017-01-11 | 安吉恒盛热能机械有限公司 | Automatic compensating structure for end part sealing of small-diameter straight pipe in air pressure density test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |