CN211602314U - But fast loading and unloading stainless steel pipe leakproofness test unit - Google Patents
But fast loading and unloading stainless steel pipe leakproofness test unit Download PDFInfo
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- CN211602314U CN211602314U CN202020281377.XU CN202020281377U CN211602314U CN 211602314 U CN211602314 U CN 211602314U CN 202020281377 U CN202020281377 U CN 202020281377U CN 211602314 U CN211602314 U CN 211602314U
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Abstract
The utility model discloses a but fast loading and unloading stainless steel pipe leakproofness test unit, including clamping body, sealing washer and lock nut, be provided with the sealing washer in the hole of clamping body, the sealing washer cover is served at stainless steel pipe opening to in inserting the hole of clamping body, lock nut passes through threaded connection with the clamping body and accomplishes sealedly on the sealing washer with stainless steel pipe open end locking. The utility model discloses but fast loading and unloading stainless steel pipe leakproofness test unit, the structure is small and exquisite reliable, guarantees test unit's gas tightness, and the examination stainless steel pipe loading and unloading that awaits measuring is convenient, can be used to manual or automatic gas tightness test.
Description
Technical Field
The utility model relates to a stainless steel pipe welding leakproofness test field, concretely relates to but fast loading and unloading stainless steel pipe leakproofness test unit.
Background
Stainless steel has been widely used in industry, construction industry, home decoration industry and food medical industry due to its good high temperature resistance and corrosion resistance. Among them, the stainless steel welded pipe and the stainless steel tension member are most widely used, and the current method for testing the air tightness of the large stainless steel pipe comprises the steps of plugging two ends and performing a pressurized water seal test. For the air tightness test of small stainless steel welded pipes or stainless steel stretching pieces, it is proposed that one end of a stainless steel welded pipe is tightly supported on a flexible sealing plate with an air vent of an air source, and the other end of the stainless steel welded pipe is placed in water to test the air tightness.
Purpose of the utility model
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a but fast loading and unloading stainless steel pipe leakproofness test unit, the small and exquisite reliability of structure, the examination stainless steel pipe loading and unloading that awaits measuring are convenient for manual or automatic air tightness test.
The technical scheme is as follows: in order to achieve the above object, the unit for testing the sealing performance of the stainless steel round tube capable of being rapidly assembled and disassembled according to the present invention comprises a clamping body, a sealing ring and a locking nut, wherein the sealing ring is arranged in an inner hole of the clamping body, the sealing ring is sleeved on an opening end of the stainless steel tube and is inserted into the inner hole of the clamping body, the locking nut and the clamping body are in threaded connection to lock the opening end of the stainless steel tube on the sealing ring to complete sealing, and good air tightness is ensured; the stainless steel pipe is a stainless steel pipe to be tested.
The inner hole is formed in one end, matched with the locking nut, of the clamping body; the inner hole is provided with a groove for placing a sealing ring.
Preferably, the outer wall of one side of the clamping body is provided with a first thread, the clamping body is connected with an air inlet interface of an external air source through the first thread, the outer wall of the other side of the clamping body is provided with a second thread which is connected with a locking nut, and the second thread is provided with four tightening seams along the axial direction. Therefore, the corrosion resistance of the test unit is ensured, meanwhile, certain deformation capacity is realized, and the stainless steel round pipe is locked in the clamping body under the cooperation of the locking nut.
Further, the groove is 5-10mm away from the tail end of the tightening seam.
Preferably, the second thread is a conical thread with a taper of 16: 1.
Preferably, the locking nut is a cylindrical nut, and is matched with the second thread, and the length of the locking nut covers the whole second thread.
Wherein, the hole is clearance fit with the stainless steel round tube, and the clearance is less than 0.03 mm.
Preferably, the sealing ring is a YX type sealing ring for a shaft, is made of silica gel and HAs a Shore hardness of 60 HA. The YX-shaped sealing ring can withstand long-term clamping of a stainless steel round pipe, and the silica gel material can ensure good air tightness.
Furthermore, the sealing ring is tightly pressed on the stainless steel round pipe after being locked by the locking nut.
Preferably, the clamping body is made of red copper.
Furthermore, one end of the stainless steel round pipe is open, the other end of the stainless steel round pipe is closed, the stainless steel round pipe is not limited to a regular equal-diameter round pipe, and the stainless steel round pipe can also be a variable-diameter stretching part only by meeting the requirement that the clamping part is the equal-diameter round pipe.
The working principle is as follows: connecting the clamp body with an external air source through a first thread, and closing the air source; the opening end of a stainless steel round pipe to be tested is arranged in an inner hole of the clamping body and is tightly propped; the clamp body and the lock nut are connected through the second thread, and the clamp body is made of red copper, so that the product deforms under the matching of the cylindrical nut (the lock nut) and the conical nut (the second thread), the sealing ring is extruded, and the sealing ring is tightly pressed on the stainless circular tube to be tested, so that the air tightness of the testing unit is ensured; putting the closed end of the stainless steel round pipe to be tested into water, starting up a gas source, ensuring the air pressure to be 0.5Mpa, ventilating for 1 minute, and observing if bubbles are generated, the tightness of the stainless steel round pipe to be tested is poor, and the tightness is good if no bubbles are generated.
Has the advantages that: compared with the prior art, the utility model has the advantages of as follows:
the utility model discloses but fast loading and unloading stainless steel pipe leakproofness test unit is rational in infrastructure, and the setting is simple, can be used for small-size stainless steel pipe welding leakproofness test field.
1. The test unit is corrosion resistant, the clamping is fast and convenient, and no large external force is needed;
2. the device is suitable for the air tightness test of various stainless steel pipes or stretching pieces;
3. the structure is small and exquisite, and is with low costs.
Drawings
FIG. 1 is a schematic structural view of a unit for testing the sealing performance of a stainless steel round tube which can be quickly assembled and disassembled;
FIG. 2 is a front cross-sectional view of the center fitting body of the present invention;
fig. 3 is a side view of the fixture of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Examples
As shown in fig. 1-3, a unit for testing the tightness of a stainless steel round tube, which can be quickly assembled and disassembled, comprises a clamping body 1, a sealing ring 2 and a locking nut 3, wherein an inner hole 12 of the clamping body 1 is provided with the sealing ring 2, specifically, the inner hole 12 is arranged at one end of the clamping body 1 matched with the locking nut 3, and the inner hole 12 is provided with a groove 13 for placing the sealing ring 2; the clamping body 1 is made of red copper, a first thread 11 is arranged on the outer wall of one side of the clamping body 1 and connected with a thread on an air inlet connector 5 of an external air source, a second thread 14 is arranged on the outer wall of the other side of the clamping body 1 and connected with a locking nut 3, four tightening seams 15 are axially arranged on the second thread 14, and the distance between the grooves and the tail ends of the tightening seams is 5-10 mm; therefore, the corrosion resistance of the test unit is ensured, meanwhile, a certain deformation capacity is realized, and the stainless steel round tube 4 is locked in the clamping body 1 under the cooperation of the locking nut 3. The second threads 14 are conical threads with a taper of 16: 1; the lock nut 3 is a cylindrical thread and is matched with the second thread 14, and the length of the lock nut covers the whole second thread 14.
The sealing ring 2 is sleeved on the stainless steel round tube 4 and inserted into a groove 13 in an inner hole 12 of the clamping body 1, the inner hole 12 is in clearance fit with the stainless steel round tube 4, and the clearance is smaller than 0.03 mm; after the sealing ring 2 is locked by the locking nut 3 and the second thread 14, the clamp body 1 deforms to press the sealing ring 2 on the stainless steel round pipe 4; the sealing ring 2 is an axial YX-shaped sealing ring made of silica gel and HAs a Shore hardness of 60 HA. Adopt YX type sealing washer can stand the long-term clamping of the stainless steel pipe of awaiting measuring, and good gas tightness can be guaranteed to the silica gel material, and stainless steel pipe 4 is the stainless steel pipe of awaiting measuring, and one end is the opening, and one end is for closing, and is not limited to regular isodiametric pipe. Finally, the locking nut 3 is connected with the clamping body 1 through a second thread 14 to lock the stainless steel round pipe (4) on the sealing ring 2 to complete sealing, and good air tightness is guaranteed.
During testing, one end of the clamping body 1 is connected with the air inlet interface 5 of the air source interface, the sealing ring 2 is arranged in the groove 13 of the clamping body 1, one end of the cylindrical surface (open end) of the stainless steel tube 4 is arranged in the clamping body 4 and is tightly propped, then the locking nut 3 is screwed on the clamping body 1 through the second thread 14, finally, the rest part of the stainless steel tube 4 to be tested is placed in water, and the air tightness of the stainless steel tube is checked by observing whether bubbles exist.
Specifically, the clamp body 1 and the air inlet interface 5 of the external air source are connected through the first thread 11, and the air source is closed; the open end of a stainless steel round pipe to be tested is arranged in the inner hole 12 of the clamping body 1 and is tightly propped; the clamp body 1 and the locking nut 3 are connected through the second thread 14, and the clamp body 1 is made of red copper, so that the product deforms under the matching of the cylindrical nut (the locking nut 3) and the conical nut (the second thread 14), the sealing ring 2 is extruded, and the sealing ring 2 is pressed on a stainless circular tube to be tested, so that the air tightness of the testing unit is ensured; putting the closed end of the stainless steel round pipe to be tested into water, starting up a gas source, ensuring the air pressure to be 0.5Mpa, ventilating for 1 minute, and observing if bubbles are generated, the tightness of the stainless steel round pipe to be tested is poor, and the tightness is good if no bubbles are generated.
Claims (9)
1. The utility model provides a but quick assembly disassembly stainless steel pipe leakproofness test unit, its characterized in that, includes clamping body (1), sealing washer (2) and lock nut (3), be provided with sealing washer (2) in hole (12) of clamping body (1), sealing washer (2) cover is held at stainless steel pipe (4) opening, and in inserting hole (12) of clamping body (1), lock nut (3) and clamping body (1) accomplish sealed through threaded connection with stainless steel pipe (4) open end locking on sealing washer (2).
2. The quick detachable stainless steel round tube tightness test unit according to claim 1, characterized in that the inner hole (12) is arranged at one end of the clamping body (1) matched with the locking nut (3); the inner hole (12) is provided with a groove (13) for placing the sealing ring (2).
3. The unit for testing the tightness of the stainless steel round pipe capable of being rapidly assembled and disassembled according to claim 1, wherein a first thread (11) is formed in the outer wall of one side of the clamping body (1), the clamping body (1) is connected with an air inlet interface (5) of an external air source through the first thread (11), a second thread (14) is formed in the outer wall of the other side of the clamping body and connected with a locking nut (3), and four tightening seams (15) are axially formed in the second thread (14).
4. The quick release stainless steel round tube sealability test unit of claim 3 wherein the second thread (14) is a conical thread with a taper of 16: 1.
5. A quick-release stainless steel round tube tightness test unit according to claim 3, characterized in that the locking nut (3) is a cylindrical nut, which is engaged with the second thread (14) and has a length that covers the entire second thread (14).
6. The quick release stainless steel round tube tightness test unit according to claim 1, wherein the inner hole (12) is in clearance fit with the stainless steel round tube (4), and the clearance is less than 0.03 mm.
7. The unit for testing the tightness of a stainless steel round tube capable of being rapidly assembled and disassembled according to claim 1, wherein the sealing ring (2) is a YX-shaped sealing ring for a shaft, is made of silica gel, and HAs a Shore hardness of 60 HA.
8. The unit for testing the tightness of a stainless steel round pipe capable of being rapidly assembled and disassembled according to claim 1, wherein the clamping body (1) is made of red copper.
9. A quick release stainless steel round tube tightness test unit according to claim 1, characterized in that the stainless steel round tube (4) is open at one end and closed at the other end, and is not limited to a regular equal diameter round tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020281377.XU CN211602314U (en) | 2020-03-09 | 2020-03-09 | But fast loading and unloading stainless steel pipe leakproofness test unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020281377.XU CN211602314U (en) | 2020-03-09 | 2020-03-09 | But fast loading and unloading stainless steel pipe leakproofness test unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211602314U true CN211602314U (en) | 2020-09-29 |
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ID=72580484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020281377.XU Active CN211602314U (en) | 2020-03-09 | 2020-03-09 | But fast loading and unloading stainless steel pipe leakproofness test unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211602314U (en) |
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2020
- 2020-03-09 CN CN202020281377.XU patent/CN211602314U/en active Active
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 225600 Changjiang Road, Gaoyou Economic Development Zone, Yangzhou City, Jiangsu Province (in science and technology entrepreneurship center) Patentee after: Shoukai High-tech (Jiangsu) Co.,Ltd. Address before: 225600 Changjiang Road, Gaoyou Economic Development Zone, Yangzhou City, Jiangsu Province (in science and technology entrepreneurship center) Patentee before: SOOK AUTOMOTIVE COMPONENTS (JIANGSU) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |