CN218725106U - Cut a expander gas tightness inspection frock - Google Patents
Cut a expander gas tightness inspection frock Download PDFInfo
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- CN218725106U CN218725106U CN202222930978.0U CN202222930978U CN218725106U CN 218725106 U CN218725106 U CN 218725106U CN 202222930978 U CN202222930978 U CN 202222930978U CN 218725106 U CN218725106 U CN 218725106U
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- expander
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Abstract
The utility model relates to a cut a expander gas tightness inspection frock, its technical essential is: the connecting rod comprises a front clamping plate, a rear clamping plate, a connecting rod, a sealing sleeve and a positioning sleeve, wherein a reducing external thread section is arranged at the other end of the connecting rod, a threaded hole connected with the reducing external thread section is formed in the center of the front clamping plate, a first sealing ring is embedded on the reducing external thread section and the transition end face of the connecting rod, a second sealing ring arranged around the central hole of the front clamping plate is embedded on the inner side face of the front clamping plate, a hole for the connecting rod to pass through is formed in the center of the rear clamping plate, a third sealing ring arranged around the central hole of the rear clamping plate is embedded on the inner side face of the rear clamping plate, the connecting rod is in threaded connection with the positioning sleeve, the sealing sleeve is clamped between the positioning sleeve and the rear clamping plate, a fourth sealing ring in contact with the outer wall of the connecting rod and the rear clamping plate is embedded at one end of the inner ring face of the sealing sleeve, a front sealing plate avoiding groove is additionally formed in the front clamping plate, and a through hole for communicating the inside with the outside of an expander is formed in the connecting rod. The trouble problem of current inspection frock installation is solved to this frock, does not need the sealed flange that uses of installation, makes the expander reach the self sealss fast, labour saving and time saving to reach short-term test's purpose.
Description
Technical Field
The utility model relates to a mutual inductor is with metal expander technical field, concretely relates to plant silk expander gas tightness inspection frock.
Background
The metal expander is a compensating element connected to the oil conservator of the mutual inductor, and when the volume of the insulating oil in the mutual inductor changes due to temperature change, the volume of the main body of the expander changes correspondingly, so that the volume compensation effect is achieved. The metal expander comprises a front sealing plate, a rear sealing plate and a corrugated pipe welded between the front sealing plate and the rear sealing plate, wherein the center of the front sealing plate is provided with a front hole used for connecting the oil injection nozzle, and the center of the rear sealing plate is provided with a rear hole used for installing an oil conservator connecting piece. The wire-cutting expander is one of expanders and is characterized in that a plurality of studs are welded on the periphery of a front hole of a front sealing plate and used for fixing an oil injection tool of a mutual inductor.
During the use, plant silk expander inner space and mutual-inductor intercommunication, and because the mutual-inductor needs to satisfy the requirement of totally enclosed when moving, the place welding needs to carry out the gas tightness inspection after accomplishing to confirm whether there is the seepage problem in welding seam department, ensure that the product is qualified. At present, when the air tightness of the time-planting expander is detected, the front part and the rear part of the expander are required to be respectively provided with the sealing flanges, and then the detection tool is arranged between the two sealing flanges, so that the process is troublesome, and the quick detection is not facilitated.
Disclosure of Invention
An object of the utility model is to provide a rational in infrastructure, use reliable silk expander gas tightness inspection frock of planting solves the trouble problem of current inspection frock installation, does not need the sealed flange that uses of installation, makes the expander reach the self sealss fast, labour saving and time saving to reach the purpose of short-term test.
The technical scheme of the utility model is that:
the utility model provides a cut silk expander gas tightness inspection frock which the technical essential is: the wire cutting device comprises a front clamping plate, a rear clamping plate, a connecting rod, a sealing sleeve and a positioning sleeve, wherein the front clamping plate is used for being attached to a front sealing plate of an expander, the rear clamping plate is used for being attached to a rear sealing plate of the expander, the connecting rod is used for penetrating through center holes of the front and rear sealing plates, the sealing sleeve and the positioning sleeve are arranged at one end of the connecting rod, a reducing external threaded section is arranged at the other end of the connecting rod, a threaded hole is formed in the center of the front clamping plate and connected with the reducing external threaded section, a first sealing ring is embedded on the reducing external threaded section and the transition end face of the connecting rod, a second sealing ring which is arranged around the center hole of the front sealing plate is embedded on the inner side face of the front clamping plate, a hole for the connecting rod to penetrate through is formed in the inner side face of the rear clamping plate, the connecting rod is in threaded connection with the positioning sleeve, the sealing sleeve is clamped between the positioning sleeve and the rear clamping plate, a fourth sealing ring which is in contact with the outer wall of the connecting rod and the rear clamping plate is embedded at one end of the inner face of the sealing sleeve, a front clamping plate is additionally provided with a front wire cutting avoiding groove, and a through hole which the expander is arranged on the connecting rod and the outside.
Foretell fall into silk inflation gas tightness inspection frock, the interior anchor ring of abutment sleeve is equipped with interior screw thread section, and abutment sleeve keeps away from back cardboard end and is equipped with twist grip to twist soon the manual work.
According to the wire-cutting expander airtightness inspection tool, the expanding end plate connected with the rear clamping plate is arranged at one end of the sealing sleeve, the fourth sealing ring is located on the inner annular surface of the expanding end plate, and the outer diameter of the other end of the sealing sleeve is smaller than that of the positioning sleeve.
According to the air tightness test tool for the wire cutting expander, the through hole is formed by a concentric axial hole starting from the diameter-reducing external thread section and extending into the connecting rod and a radial hole connected with the inner end of the concentric axial hole.
According to the air tightness inspection tool for the silk planting expander, the expanding section connected with the reducing external thread section is arranged at the position, close to the front sealing plate, of the connecting rod, and the inner end of the concentric axial hole and the radial hole are located in the expanding section.
Foretell cut silk expander gas tightness inspection frock, the end of the external screw thread section of undergauge is outstanding in preceding cardboard to connect compressed air and carry the pipe fitting.
Foretell cut silk expander gas tightness inspection frock, the quantity that the recess was dodged to preceding shrouding cut the silk is a plurality of, distributes around its center for dodge on the preceding shrouding welded double-screw bolt.
The utility model has the advantages that:
when the connecting rod is used, a sealing flange is not required to be installed, the connecting rod sequentially penetrates through the hole of the rear clamping plate, the central hole of the rear sealing plate and the central hole of the front sealing plate to be in threaded connection with the front clamping plate, and the connecting rod is rotationally positioned by utilizing the positioning sleeve. Compressed air is injected into the expander through the through holes, the expander corrugated pipe is naturally expanded under the pressure of the compressed air, the front and the rear sealing plates of the expander are stressed, the sealing ring structures on the front and the rear clamping plates are compressed, and the sealing state is achieved. And then, the whole expander and the tool are immersed in water for detection, and whether leakage exists at the welding seam of the expander or not is checked. Whole process operation is simple and convenient, and labour saving and time saving has solved the trouble problem of current inspection frock installation, makes the expander reach the self sealss fast to reach short-term test's purpose.
Drawings
Fig. 1 is an exploded view of the present invention;
FIG. 2 is a view showing the usage state of the present invention;
fig. 3 is a schematic view of the construction of the wire-planting expander.
In the figure: 1. the expansion device comprises a positioning sleeve, 2 sealing sleeves, 3 rear clamping plates, 4 third sealing rings, 5 connecting rods, 6 reducing external thread sections, 7 first sealing rings, 8 front clamping plates, 9 front sealing plate wire cutting avoiding grooves, 10 threaded holes, 11 concentric axial holes, 12 radial holes, 13 fourth sealing rings, 14 holes, 15 second sealing rings, 16 expanding end plates, 17 rotating handles, 18 rear sealing plates, 19 front sealing plates, 20 expander corrugated pipes and 21 studs.
Detailed Description
The invention is described in detail according to the attached drawings.
As shown in fig. 1 to 3, the wire-cutting expander airtightness inspection tool comprises a front clamping plate 8 for being attached to a front sealing plate 19 of an expander, a rear clamping plate 3 for being attached to a rear sealing plate 18 of the expander, a connecting rod 5 for penetrating through center holes of the front and rear sealing plates, a sealing sleeve 2 arranged at one end of the connecting rod 5, and a positioning sleeve 1. The other end of the connecting rod 5 is provided with a reducing external thread section 6, the center of the front clamping plate 8 is provided with a threaded hole 10 connected with the reducing external thread section 6, a first sealing ring 7 is embedded on the transition end face of the reducing external thread section 6 and the connecting rod 5, and a second sealing ring 15 arranged around the central hole of the front sealing plate 19 is embedded on the inner side face of the front clamping plate 8. The center of the rear clamping plate 3 is provided with a hole 14 for the connecting rod 5 to pass through, and the inner side surface of the rear clamping plate 3 is embedded with a third sealing ring 4 arranged around the center hole of the rear sealing plate. The connecting rod 5 is in threaded connection with the positioning sleeve 1, the sealing sleeve 2 is clamped between the positioning sleeve 1 and the rear clamping plate 3, and a fourth sealing ring 13 which is in contact with the outer wall of the connecting rod 5 and the rear clamping plate 3 is embedded at one end of the inner annular surface of the sealing sleeve 2. And a front seal plate wire planting avoiding groove 9 is additionally arranged on the front clamp plate 8. And the connecting rod 5 is provided with a through hole for communicating the inside of the expander with the outside.
In this embodiment, the inner annular surface of the positioning sleeve 1 is provided with an inner thread section, and the end of the positioning sleeve 1 away from the rear clamping plate 3 is provided with a rotating handle 17, so as to facilitate manual screwing. One end of the sealing sleeve 2 is provided with an expanding end plate 16 connected with the rear clamping plate 3, the fourth sealing ring 13 is positioned on the inner ring surface of the expanding end plate 16, and the outer diameter of the other end of the sealing sleeve 2 is smaller than that of the positioning sleeve 1.
The through hole on the connecting rod 5 is composed of a concentric axial hole 11 starting from the reducing external thread section 6 and extending into the connecting rod 5, and a radial hole 12 connected with the inner end of the concentric axial hole 11. And an expanding section connected with the reducing external thread section 6 is arranged at the position of the connecting rod 5 close to the front closing plate 19, and the inner end of the concentric axial hole 11 and the radial hole 12 are positioned in the expanding section. The tail end of the reducing external thread section 6 protrudes out of the front clamping plate 8 so as to be convenient for connecting a compressed air conveying pipe fitting.
The front sealing plate wire planting avoiding grooves 9 are distributed around the center of the front sealing plate wire planting avoiding grooves and are used for avoiding studs 21 welded on the front sealing plate 19.
When the screw-thread screw-driving device is used, the front clamping plate 8 is buckled on the outer side surface of the front sealing plate 19, so that each screw bolt 21 on the front sealing plate 19 is inserted into the corresponding front sealing plate screw-planting avoiding groove 9, and the screw hole 10 of the front clamping plate 8 is aligned with the central hole of the front sealing plate 19. The reducing external thread section 6 of the connecting rod 5 sequentially passes through the hole of the rear clamping plate 3, the central hole of the rear sealing plate 18 and the central hole of the front sealing plate 19 and then is in threaded connection with the threaded hole 10 of the front clamping plate 8, and then the positioning sleeve 1 is screwed down to realize positioning. Compressed air is injected into the expander through the through holes, the expander corrugated pipe 20 is naturally expanded under the pressure of the compressed air, the front sealing plate 19 and the rear sealing plate 18 of the expander are stressed, and the sealing ring structures on the front clamping plate and the rear clamping plate are tightly pressed to achieve a sealing state. And then, the whole expander and the tool are immersed in water for detection, and whether leakage exists at the welding seam of the expander or not is checked.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (7)
1. The utility model provides a cut silk expander gas tightness inspection frock which characterized in that: the wire cutting device comprises a front clamping plate, a rear clamping plate, a connecting rod, a sealing sleeve and a positioning sleeve, wherein the front clamping plate is used for being attached to a front sealing plate of an expander, the rear clamping plate is used for being attached to a rear sealing plate of the expander, the connecting rod is used for penetrating through center holes of the front and rear sealing plates, the sealing sleeve and the positioning sleeve are arranged at one end of the connecting rod, a reducing external threaded section is arranged at the other end of the connecting rod, a threaded hole is formed in the center of the front clamping plate and connected with the reducing external threaded section, a first sealing ring is embedded on the reducing external threaded section and the transition end face of the connecting rod, a second sealing ring which is arranged around the center hole of the front sealing plate is embedded on the inner side face of the front clamping plate, a hole for the connecting rod to penetrate through is formed in the inner side face of the rear clamping plate, the connecting rod is in threaded connection with the positioning sleeve, the sealing sleeve is clamped between the positioning sleeve and the rear clamping plate, a fourth sealing ring which is in contact with the outer wall of the connecting rod and the rear clamping plate is embedded at one end of the inner face of the sealing sleeve, a front clamping plate is additionally provided with a front wire cutting avoiding groove, and a through hole which the expander is arranged on the connecting rod and the outside.
2. The wire-cutting expander airtightness inspection tool according to claim 1, wherein: the inner ring surface of the positioning sleeve is provided with an inner thread section, and the end of the positioning sleeve, which is far away from the rear clamping plate, is provided with a rotating handle.
3. The wire-cutting expander airtightness inspection tool according to claim 1, wherein: one end of the sealing sleeve is provided with an expanding end plate connected with the rear clamping plate, the fourth sealing ring is positioned on the inner ring surface of the expanding end plate, and the outer diameter of the other end of the sealing sleeve is smaller than that of the positioning sleeve.
4. The wire-cutting expander airtightness inspection tool according to claim 1, wherein: the through hole is composed of a concentric axial hole which starts from the reducing external thread section and extends into the connecting rod and a radial hole connected with the inner end of the concentric axial hole.
5. The wire-cutting expander airtightness inspection tool according to claim 4, wherein: the connecting rod is provided with an expanding section connected with the reducing external thread section at a position close to the front sealing plate, and the inner end of the concentric axial hole and the radial hole are positioned in the expanding section.
6. The wire-cutting expander airtightness inspection tool according to claim 1, wherein: the tail end of the reducing outer thread section protrudes out of the front clamping plate.
7. The wire-cutting expander airtightness inspection tool according to claim 1, wherein: the front seal plate wire planting avoidance grooves are multiple in number, distributed around the centers of the front seal plate wire planting avoidance grooves and used for avoiding the studs welded on the front seal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222930978.0U CN218725106U (en) | 2022-11-04 | 2022-11-04 | Cut a expander gas tightness inspection frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222930978.0U CN218725106U (en) | 2022-11-04 | 2022-11-04 | Cut a expander gas tightness inspection frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218725106U true CN218725106U (en) | 2023-03-24 |
Family
ID=85604163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222930978.0U Active CN218725106U (en) | 2022-11-04 | 2022-11-04 | Cut a expander gas tightness inspection frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218725106U (en) |
-
2022
- 2022-11-04 CN CN202222930978.0U patent/CN218725106U/en active Active
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