CN208968753U - Welding bellows device for detecting leak point - Google Patents
Welding bellows device for detecting leak point Download PDFInfo
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- CN208968753U CN208968753U CN201821884657.9U CN201821884657U CN208968753U CN 208968753 U CN208968753 U CN 208968753U CN 201821884657 U CN201821884657 U CN 201821884657U CN 208968753 U CN208968753 U CN 208968753U
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- type seal
- leak point
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Abstract
The utility model provides a kind of welding bellows device for detecting leak point, including upper mounted plate, bottom plate, link mechanism, hold-down mechanism and extraction air pipe；A plurality of spaced upper ring type seal is removably connected on upper mounted plate bottom surface；A plurality of spaced lower ring type seal is removably connected on bottom plate top surface；Link mechanism includes the connecting rod for connecting upper mounted plate and bottom plate, and adjusts the tightening mechanism of connecting rod and upper mounted plate and/or the fixed position of bottom plate；Hold-down mechanism is equipped at least two, is respectively arranged on upper mounted plate and/or bottom plate, including the pressing plate abutted against with the side wall of ripple pipe flange；Extraction air pipe is set on the top surface of upper mounted plate.Welding bellows device for detecting leak point provided by the utility model can be sealed fixation, using flexible, fixation to the bellows of different-diameter, different collapsing lengths.
Description
Technical field
The utility model belongs to pipeline vacuum leak hunting equipment technical field, is to be related to a kind of welding ripple more specifically
Pipe device for detecting leak point.
Background technique
Welding bellows be it is a kind of utilize metal tube flexible and flexible made by precision welding technology, both ends welding
Flange forms bellows group, can so answer external needs reciprocating together with other moving components.Welding bellows
It is big with stroke, the characteristics of good airproof performance, it is able to achieve the exchange of atmosphere and vacuum environment, is widely used in semiconductor and sets
The fields such as standby, aerospace.
Welding bellows must do stringent performing leak test before being mounted on equipment, if the welding bellows in equipment
Occur to leak to be also required to disassemble to carry out leak detection test, to determine that leak source is repaired.Because welding bellows tube wall is thin, flexible
Amount is big, in leak detection needs that welding bellows is fixed, to prevent from compressing and distort.
Welding bellows device for detecting leak point in the prior art includes upper mounted plate, bottom plate, and is fixedly connected
The connecting rod of upper mounted plate and bottom plate, upper mounted plate and bottom plate are equipped with groove, and two end flanges of bellows are equipped with
Seal groove, embedded sealing ring between flange sealing trough and fixed plate groove, so that bellows is fixed.
Welding bellows device for detecting leak point in the prior art predominantly detects fixed dimension and ripple pipe flange must be certainly
The bellows of type with sealing ring, leak detection different size model needs replacing different leakage detection apparatus, and leakage detection apparatus does not have
Versatility is not able to satisfy the demand hunted leak to plurality of specifications bellows, and be equipped with excessive particular detection device both without
Ji, and it is unfavorable for the rapidity and convenience of maintenance.
In addition, some leak sources of welding bellows only just will appear in specific telescopic location in maintenance, hunting leak
It hunts leak in the process sometimes for the different telescopic locations to welding bellows, and in the prior art for being fixedly welded ripple
The distance between two fixed plates of pipe be it is fixed, be not able to satisfy above-mentioned detection demand.
Utility model content
The purpose of this utility model is to provide a kind of welding bellows device for detecting leak point, it is intended to solve in the prior art
It is existing be not able to satisfy to plurality of specifications bellows carry out leak detection and cannot be to the skill that bellows difference telescopic location is hunted leak
Art problem.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of welding bellows leak source detection
Device, comprising:
Upper mounted plate is removably connected with a plurality of interval setting on bottom surface and upper ring type seal that radius is sequentially increased,
The central point of a plurality of upper ring type seal is overlapped；The upper ring type seal is used for and bellows flanged joint；
Bottom plate is removably connected with a plurality of interval setting on top surface and lower ring type seal that radius is sequentially increased,
The central point of a plurality of lower ring type seal is overlapped, and the lower ring type seal is used for and bellows flanged joint；
Link mechanism, the connecting rod including connecting fixed plate and the bottom plate, and adjust the connection
The tightening mechanism of bar and the fixed position of fixed plate and/or the bottom plate；The connecting rod is equipped at least two；
Hold-down mechanism is equipped at least two, is respectively arranged on fixed plate and/or the bottom plate, including
The pressing plate abutted against with the side wall of ripple pipe flange；
Extraction air pipe is set on the top surface of fixed plate, for connecting leak detector or gas source.
Further, the pressing plate is arc panel；The hold-down mechanism further includes the mobile bar connecting with the pressing plate, set
Fixing sleeve in the mobile bar；The central axis of the center line of the fixing sleeve and the mobile bar；The fixation
Set is connect with fixed plate or the bottom plate.
Further, the hold-down mechanism further includes the fixed link in the fixing sleeve, and is sleeved on described
Adapter sleeve in fixed link；The centerline collineation of the center line of the fixed link and the fixing sleeve；
First through hole is respectively equipped on fixed plate, the bottom plate, it is logical that the fixed link passes through described first
Hole, the fixing sleeve, the adapter sleeve are located at the both ends of the first through hole.
Further, fixed plate, be equipped at least two at equal intervals respectively on the bottom plate and be angularly distributed
The hold-down mechanism.
Further, the link mechanism further includes two screw rods for connecting fixed plate Yu the bottom plate；
The tightening mechanism is to be set on the screw rod to tighten nut；It is described to tighten nut and fixed plate end face or described
Bottom plate end face abuts.
Further, it is set on fixed plate there are two symmetrically arranged upper connecting ear, in each upper connecting ear
It is equipped with the second through-hole, the upper end of the screw rod passes through second through-hole；It is set with described in two on each screw rod
Nut is tightened, and two tighten nut and abut against respectively with the upper surface of the upper connecting ear, lower end surface；
It is set on the bottom plate there are two symmetrically arranged lower connecting ear, is equipped in each lower connecting ear blind
Hole, the lower end of the screw rod are fixed in the blind hole.
Further, the extraction air pipe includes the suction interface for connecting leak detector, and for connecting gas source
Adapter.
The beneficial effect of welding bellows device for detecting leak point provided by the utility model is: compared with prior art,
The utility model welding bellows device for detecting leak point, upper mounted plate are equipped with a plurality of upper ring type seal, set on bottom plate
There is a plurality of lower ring type seal, every upper ring type seal, every lower ring type seal can be correspondingly connected with a kind of ripple of specification
Pipe flange makes the device have versatility so that the device can fix the bellows of different size model；In addition, connection
The spacing of upper mounted plate and bottom plate is adjusted by tightening mechanism for bar, and then adjusts the collapsing length of bellows, to make
The device meets the requirement hunted leak to bellows difference telescopic location；Furthermore the device is equipped with hold-down mechanism and is used for wave
Line pipe flange compresses, and limitation flange is mobile, to make flange fixation.
Welding bellows device for detecting leak point provided by the utility model can be to the wave of different-diameter, different collapsing lengths
Line pipe is sealed fixation, using flexible, fixation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of welding bellows device for detecting leak point provided by the embodiment of the utility model；
Fig. 2 is the structural representation of the upper mounted plate of welding bellows device for detecting leak point provided by the embodiment of the utility model
Figure；
Fig. 3 is the structural representation of the bottom plate of welding bellows device for detecting leak point provided by the embodiment of the utility model
Figure；
Fig. 4 is the structural representation of the hold-down mechanism of welding bellows device for detecting leak point provided by the embodiment of the utility model
Figure.
In figure: 10, upper mounted plate；11, upper ring type seal；12, upper connecting ear；13, the second through-hole；14, first through hole；
20, bottom plate；21, lower ring type seal；22, lower connecting ear；23, blind hole；30, link mechanism；31, connecting rod；32, it tightens
Nut；40, hold-down mechanism；41, pressing plate；42, mobile bar；43, fixing sleeve；44, fixed link；45, adapter sleeve；50, extraction tracheae
Road；51, suction interface；52, adapter；60, bellows；61, flange.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
Referring to Fig. 1, existing be illustrated welding bellows device for detecting leak point provided by the utility model.The welding
Bellows device for detecting leak point, including upper mounted plate 10, bottom plate 20, link mechanism 30, hold-down mechanism 40 and extraction tracheae
Road 50.
The upper ring type seal that a plurality of interval is arranged and radius is sequentially increased is removably connected on 10 bottom surface of upper mounted plate
11, the central point of a plurality of upper ring type seal 11 is overlapped, referring to Fig.2, upper ring type seal 11 is made of silastic material, on
Ring type seal 11 with the flange 61 of bellows 60 for connecting.A plurality of interval is removably connected on 20 top surface of bottom plate to set
It sets and lower ring type seal 21 that radius is sequentially increased, the central point of a plurality of lower ring type seal 21 is overlapped, refering to Fig. 3, lower ring
Shape sealing ring 21 is made of silastic material, and lower ring type seal 21 with the flange 61 of bellows 60 for connecting.
Link mechanism 30 include connection upper mounted plate 10 and bottom plate 20 connecting rod 31, and adjust connecting rod 31 and
Upper mounted plate 10 and/or the tightening mechanism of the fixed position of bottom plate 20.Hold-down mechanism 40 is equipped at least two, is respectively arranged at
On upper mounted plate 10 and/or bottom plate 20, including the pressing plate 41 abutted against with the side wall of flange 61.Extraction air pipe 50 is arranged
In on the top surface of upper mounted plate 10, for connecting leak detector or gas source.
Specifically, 10 bottom surface of upper mounted plate is equipped with a plurality of upper annular groove, and upper 11 top of ring type seal is flush-mounted in upper
In annular groove.The central point of a plurality of upper ring type seal 11 is overlapped with the central point of upper mounted plate 10, every upper ring packing
The lower part of circle 11 can correspond in a kind of seal groove of 60 flange 61 of bellows of specification.20 top surface of bottom plate is equipped with
A plurality of lower annular groove, lower 21 lower part of ring type seal is in lower annular groove.The center of a plurality of lower ring type seal 21
Point is overlapped with the central point of bottom plate 20, and the top of every lower ring type seal 21 can correspond to the ripple flush-mounted in a kind of specification
In the seal groove of 60 flange 61 of pipe.
Before bellows 60 and upper mounted plate 10, bottom plate 20 are installed, a plurality of upper ring type seal 11 can be all flush-mounted in
Upper mounted plate 10, a plurality of lower ring type seal 21 can be all on bottom plates 20, when installation, as long as by the close of flange 61
Sealing groove is inserted in upper ring type seal 11 compatible with 61 size of the flange, on lower ring type seal 21, due to upper annular
Sealing ring 11, lower ring type seal 21 have elasticity, in addition to nested upper ring type seal 11, lower ring type seal 21, remaining
Upper ring type seal 11, lower ring type seal 21 are compressed by flange 61 respectively, will not influence upper mounted plate 10, bottom plate 20 with
The connection of flange 61.
It, can also be on upper mounted plate 10, bottom plate 20 only before bellows 60 and upper mounted plate 10, bottom plate 20 are installed
It is embedded in upper ring type seal 11 corresponding with 61 size of flange, lower ring type seal 21.
The process of the fixation bellows 60 of welding bellows device for detecting leak point provided by the utility model is as follows:
The seal groove of 60 liang of end flanges 61 of bellows is nested in upper ring type seal 11, lower ring type seal respectively first
On 21.Then upper mounted plate 10 and bottom plate 20 are connected using connecting rod 31, using tightening mechanism adjust connecting rod 31 with it is upper
Fixed plate 10 and/or with the fixation position of bottom plate 20 and fasten, i.e. adjusting connecting rod 31 is located at upper mounted plate 10 under
Length between fixed plate 20 makes the telescopic location of bellows 60 meet leak detection test to adjust the collapsing length of bellows 60
Demand, and the position of connecting rod 31 can be fixed in tightening mechanism, so that flange 61 is by being axially secured in a press.Finally adjust
The fixation position for saving hold-down mechanism 40, by the side wall of 41 supported flange 61 of pressing plate, so that flange 61 is by being radially secured in a press.
Welding bellows device for detecting leak point provided by the utility model is set on upper mounted plate 10 compared with prior art
There are a plurality of upper ring type seal 11, bottom plate 20 to be equipped with a plurality of lower ring type seal 21, it is every upper ring type seal 11, every
Ring type seal 21 can be correspondingly connected with a kind of ripple pipe flange 61 of specification under item, so that the device can fix different size
The bellows 60 of model, makes the device have versatility；In addition, connecting rod 31 by tightening mechanism be adjusted upper mounted plate 10 with
The spacing of bottom plate 20, and then the collapsing length of bellows 60 is adjusted, so that device satisfaction be made to stretch 60 difference of bellows
It condenses the requirement set and hunted leak；Furthermore the device is equipped with hold-down mechanism 40 for compressing ripple pipe flange 61, limits flange
61 move radially, so that 61 fixation of flange.
Welding bellows device for detecting leak point provided by the utility model can be to the wave of different-diameter, different collapsing lengths
Line pipe is sealed fixation, using flexible, fixation.
Hold-down mechanism 40 applies radial pressure to flange 61, is moved radially with limiting flange 61, in order to keep flange 61 radial
Stress balance, as a kind of specific embodiment of welding bellows device for detecting leak point provided by the utility model, upper fixation
It is equipped at least two hold-down mechanisms 40 on plate 10, bottom plate 20 at equal intervals respectively, refering to fig. 1.And multiple hold-down mechanisms 40 etc.
Angular distribution, so that 61 radial force of flange balances.
Specifically, pressing plate 41 is arc panel, and the lateral surface of intrados and flange 61 fits.Due to the wave of different size
The diameter of line pipe flange 61 is different, to be bonded pressing plate 41 completely with flange 61, needs pressing plate 41 can be along the diameter of flange 61
To movement, to achieve the goals above, one kind as welding bellows device for detecting leak point provided by the utility model is specific
Embodiment, hold-down mechanism 40 further include the mobile bar 42 connecting with pressing plate 41 and the fixing sleeve being sleeved in mobile bar 42
43, radial parallel, the center line of mobile bar 42 and the central axis of fixing sleeve 43 of the center line and flange 61 of mobile bar 42；
Fixing sleeve 43 is connect with upper mounted plate 10, bottom plate 20.Fixing sleeve 43 is equipped with radial through-hole, and mobile bar 42 passes through radial logical
Hole, and can be moved along fixing sleeve 43, thus it is mobile with dynamic pressure plate 41, so that pressing plate 41 is bonded with flange 61 and supported flange 61.
Specifically, can be to be threadedly coupled between mobile bar 42 and fixing sleeve 43, moving in rotation bar 42 can make pressing plate 41 mobile.
In order to be stably connected with hold-down mechanism 40 with upper mounted plate 10, bottom plate 20, as provided by the utility model
A kind of specific embodiment of welding bellows device for detecting leak point, hold-down mechanism 40 further include consolidating in fixing sleeve 43
Fixed pole 44, and the adapter sleeve 45 being sleeved in fixed link 44, the center line of fixed link 44 and the centerline collineation of fixing sleeve 43,
Referring to Fig. 4, being respectively equipped with first through hole 14 on upper mounted plate 10, bottom plate 20, fixed link 44 passes through first through hole 14, Gu
Surely set 43, adapter sleeve 45 are located at the both ends of first through hole 14.Specifically, screw thread company can be used in adapter sleeve 45 and fixed link 44
It connects, fixed link 44 can be fixed in first through hole 14 by adapter sleeve 45.
Hold-down mechanism 40 can also apply axis to upper mounted plate 10, bottom plate 20 other than applying radial force to flange 61
On the one hand Xiang Li, i.e. adapter sleeve 45 can fix the position of fixed link 44, on the other hand can also apply to upper mounted plate 10 and be pressed downward
Power applies upward pressure to bottom plate 20, compresses two fixed plates, further compresses two flanges 61.
Referring to Fig. 1, a kind of specific embodiment party as welding bellows device for detecting leak point provided by the utility model
Formula, connecting rod 31 are screw rod, if there are two.Tightening mechanism is to be set on screw rod to tighten nut 32；Tighten nut 32 with it is upper
10 end face of fixed plate or 20 end face of bottom plate abut.
Specifically, it sets on upper mounted plate 10 there are two symmetrically arranged upper connecting ear 12, is all provided in each upper connecting ear 12
There is the second through-hole 13, the upper end of screw rod passes through the second through-hole 13；It is set with two on each screw rod and tightens nut 32, and two
Nut 32 is tightened to abut against with the upper surface of upper connecting ear 12, lower end surface respectively.It is symmetrical arranged there are two being set on bottom plate 20
Lower connecting ear 22, be equipped with blind hole 23 in each lower connecting ear 22, the lower end of screw rod is fixed in blind hole 23.Screw rod with it is upper
The fixation position of fixed plate 10 can be adjusted by tightening nut 32.When the leak source for needing to detect the different telescopic locations of bellows 60
When, that is, when needing to adjust the length of bellows 60, need to only back out 10 top surface of upper mounted plate tightens nut 32, mobile upper mounted plate
10, so that upper mounted plate 10 is in desired detection position, then screw on removed from upper mounted plate 10 tighten nut 32, and twist
Two on dynamic screw rod tighten nut 32, are in close contact the two with the upper surface of upper mounted plate 10, lower end surface respectively.Even
The structure of linkage 30 is simple, convenient for operation.
Referring to Fig. 1, a kind of specific embodiment party as welding bellows device for detecting leak point provided by the utility model
Formula, extraction air pipe 50 include suction interface 51 and adapter 52.Suction interface 51 connects leak detector, to taking out inside bellows 60
Vacuum, to carry out negative pressure leakage detection to bellows 60.Adapter 52 connects gas source, to 60 inner inflatable of bellows, thus to wave
Line pipe 60 carries out positive pressure leak detection.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (8)
1. welding bellows device for detecting leak point characterized by comprising
Upper mounted plate is removably connected with a plurality of interval setting on bottom surface and upper ring type seal that radius is sequentially increased, a plurality of
The central point of the upper ring type seal is overlapped, and the upper ring type seal is used for and bellows flanged joint；
Bottom plate is removably connected with a plurality of interval setting on top surface and lower ring type seal that radius is sequentially increased, a plurality of
The central point of the lower ring type seal is overlapped, and the lower ring type seal is used for and bellows flanged joint；
Link mechanism, the connecting rod including connecting fixed plate and the bottom plate, and adjust the connecting rod and
Fixed plate and/or the tightening mechanism of the fixed position of the bottom plate；The connecting rod is equipped at least two；
Hold-down mechanism, be equipped at least two, be respectively arranged on fixed plate and/or the bottom plate, including with wave
The pressing plate that the side wall of line pipe flange abuts against；
Extraction air pipe is set on the top surface of fixed plate, for connecting leak detector or gas source.
2. welding bellows device for detecting leak point as described in claim 1, it is characterised in that: the pressing plate is arc panel；Institute
State the fixing sleeve that hold-down mechanism further includes the mobile bar connecting with the pressing plate, is sleeved in the mobile bar；The fixing sleeve
Center line and the mobile bar central axis；The fixing sleeve is connect with fixed plate or the bottom plate.
3. welding bellows device for detecting leak point as claimed in claim 2, it is characterised in that: the hold-down mechanism further includes embedding
Loaded on the fixed link in the fixing sleeve, and the adapter sleeve being sleeved in the fixed link；The center line of the fixed link with
The centerline collineation of the fixing sleeve；
First through hole is respectively equipped on fixed plate, the bottom plate, the fixed link passes through the first through hole, institute
State fixing sleeve, the adapter sleeve is located at the both ends of the first through hole.
4. welding bellows device for detecting leak point as claimed in claim 3, it is characterised in that: fixed plate, it is described under
It is equipped at least two hold-down mechanisms in fixed plate at equal intervals respectively.
5. such as welding bellows device for detecting leak point of any of claims 1-4, it is characterised in that: the connecting rod
For screw rod, if there are two；The tightening mechanism is to be set on the screw rod to tighten nut；It is described tighten nut and it is described on
Fixed plate end face or the bottom plate end face abut.
6. welding bellows device for detecting leak point as claimed in claim 5, it is characterised in that: fixed plate is equipped with two
A symmetrically arranged upper connecting ear, the second through-hole is equipped in each upper connecting ear, and the upper end of the screw rod passes through described
Second through-hole；Tighten nut described in being set with two on each screw rod, and two tighten nut respectively with the upper company
Upper surface, the lower end surface of lug abut against；
It is set on the bottom plate there are two symmetrically arranged lower connecting ear, is equipped with blind hole in each lower connecting ear, institute
The lower end for stating screw rod is fixed in the blind hole.
7. the welding bellows device for detecting leak point as described in any one of claim 1-4 or 6, it is characterised in that: the pumping
Blowdown piping includes the suction interface for connecting leak detector, and the adapter for connecting gas source.
8. welding bellows device for detecting leak point as claimed in claim 5, it is characterised in that: the extraction air pipe includes using
In the suction interface of connection leak detector, and the adapter for connecting gas source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884657.9U CN208968753U (en) | 2018-11-15 | 2018-11-15 | Welding bellows device for detecting leak point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884657.9U CN208968753U (en) | 2018-11-15 | 2018-11-15 | Welding bellows device for detecting leak point |
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| Publication Number | Publication Date |
|---|---|
| CN208968753U true CN208968753U (en) | 2019-06-11 |
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| CN201821884657.9U Active CN208968753U (en) | 2018-11-15 | 2018-11-15 | Welding bellows device for detecting leak point |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211481A (en) * | 2018-11-15 | 2019-01-15 | 中国电子科技集团公司第十三研究所 | Welding bellows device for detecting leak point |
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2018
- 2018-11-15 CN CN201821884657.9U patent/CN208968753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211481A (en) * | 2018-11-15 | 2019-01-15 | 中国电子科技集团公司第十三研究所 | Welding bellows device for detecting leak point |
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