CN209745499U - Steel pipe gas tightness detection device - Google Patents
Steel pipe gas tightness detection device Download PDFInfo
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- CN209745499U CN209745499U CN201920519937.8U CN201920519937U CN209745499U CN 209745499 U CN209745499 U CN 209745499U CN 201920519937 U CN201920519937 U CN 201920519937U CN 209745499 U CN209745499 U CN 209745499U
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- steel pipe
- pipe
- bag
- sealing
- internal thread
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Abstract
The utility model discloses a steel pipe gas tightness detection device relates to small-bore steel pipe detection area, this steel pipe gas tightness detection device, including pressure instrument, pressure instrument's one end and one side fixed connection of seal bag, one side that pressure instrument was kept away from to the seal bag is provided with the steel pipe, the equal swing joint in mouth of pipe at steel pipe both ends has the connecting seal piece, two the looks remote site of connecting the sealing member all extends to the inside of steel pipe, two connecting seal piece deviate from the end respectively with seal bag and compression bag's opposite face fixed connection, one side that the steel pipe was kept away from to the compression bag is provided with discharge valve, discharge valve's pneumatic valve mouth swing joint has the air pump. The utility model discloses a set up pressure instrument, seal bag, connection sealing member, compression bag and air pump, solved and need transport the water source when detecting the steel pipe gas tightness through water, and detect the inconvenient recycle in inside water source of back steel pipe, detect comparatively trouble problem.
Description
Technical Field
The utility model relates to a small-bore steel pipe detects technical field, specifically is a steel pipe gas tightness detection device.
Background
The perambulator is the tool bogie that the outdoor activities of a kind of for the baby facilitates and designs, there are various motorcycle types, it is the perambulator that children of generally 1 to 2 years old played, it is the toy car that has the wheel to play more than 2 years old, the perambulator can bring certain benefit for child's intellectual development, increase child's brain development, the steel pipe can generally be used to the perambulator when processing manufacturing simultaneously, usually small-bore steel pipe, the small-bore steel pipe of external diameter just can be called as small-bore steel pipe, small-bore steel pipe can also divide into: the seamless small-diameter steel pipe and the straight-seam (also called as welding) small-diameter steel pipe are generally under the outer diameter 89 of the steel pipe, and can be generally called as small-diameter steel pipes which can be divided into hot-rolled pipes, cold-drawn pipes, extruded pipes and the like according to different production methods, the small-diameter steel pipes of the baby carriage generally need to be welded in the use process, the welded steel pipes are divided into furnace welded pipes, electric welded pipes and automatic arc welded pipes according to different welding processes, the welded steel pipes are divided into straight-seam welded pipes and spiral welded pipes according to different welding forms, the welded pipes can be used for water pipelines, gas pipelines, heating pipelines, electric appliance pipelines and the like, the welded pipes are the seamed steel pipes, and the air tightness of the steel pipes is generally detected by water.
Because the water need transport the water source when detecting steel pipe gas tightness, sealed after being full of the water source with steel pipe inside, and detect the inconvenient recycle of the inside water source of back steel pipe, it is comparatively troublesome to detect.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a steel pipe gas tightness detection device has solved and has need transport the water source when detecting the steel pipe gas tightness through water, and detects the inconvenient recycle in inside water source of back steel pipe, detects comparatively trouble problem.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a steel pipe gas tightness detection device, includes pressure instrument, pressure instrument's one end and one side fixed connection of seal bag, one side that pressure instrument was kept away from to the seal bag is provided with the steel pipe, the equal swing joint in the mouth of pipe at steel pipe both ends has the connection sealing member, two the looks remote site of connecting the sealing member all extends to the inside of steel pipe, two the opposite face fixed connection who deviates from the end of connecting the sealing member respectively with seal bag and compression bag, one side that the steel pipe was kept away from to the compression bag is provided with discharge valve, discharge valve's pneumatic valve mouth swing joint has the air pump, compression bag and seal bag all are linked together with the steel pipe through.
Preferably, the connecting sealing element comprises a sealing plug, an external thread pipe, a sealing ring, an internal thread pipe, a connecting pipe and a rubber plug, the sealing plug is fixedly connected with one end of the external threaded pipe, the sealing plug is movably connected inside the steel pipe, the sealing ring is movably sleeved on the surface of the external threaded pipe, and the sealing ring is lapped at one end of the steel pipe, one end of the sealing ring far away from the steel pipe is fixedly connected with one end of the internal threaded pipe, the inner wall of the internal threaded pipe is in threaded connection with the surface of the external threaded pipe, one end of the internal threaded pipe, which is far away from the steel pipe, is provided with an air hole, the rubber plug is fixedly connected with one side of the inner wall of the internal thread pipe close to the air hole, one end of the rubber plug far away from the internal thread pipe extends to the inside of the sealing plug, the connecting pipe fixed connection is in the one end that the steel pipe was kept away from to the internal thread pipe, sealing bag and compression bag fixed connection respectively deviate from the end at two connecting pipes.
Preferably, the inner wall of the sealing plug is in a round table shape, the surface of the rubber plug is movably connected with the inner wall of the sealing plug, and the shape of the sealing plug is matched with that of the rubber plug.
Preferably, the sealing plug is fixedly connected to the axis position of the internal thread pipe, and the air holes are annularly distributed at one end of the internal thread pipe.
(III) advantageous effects
The utility model provides a steel pipe gas tightness detection device possesses following beneficial effect:
The utility model discloses a through setting up pressure instrument, the seal bag, connect the sealing member, compression bag and air pump, the steel pipe need not to pass through the support to support, can directly cross on ground and detect, the equipment that detects is the disconnect-type, can adapt to the steel pipe of different length, draw the air in the seal bag through the air pump, the circulation of air is through the steel pipe, after finishing drawing, seal up the discharge valve with sealed lid, observe the seal bag atmospheric pressure size that pressure instrument detected, because the gas in the seal bag is evacuated, outside atmospheric pressure is greater than the atmospheric pressure in the seal bag, if the steel pipe gas tightness is good, the pressure instrument registration is unchangeable, if the steel pipe gas tightness is relatively poor, the steel pipe leaks gas after the outside atmospheric pressure of steel pipe is greater than the inside atmospheric pressure of steel pipe, the pressure instrument registration changes, reach and use conveniently, convenient to detect, and the purpose of quick, and the water source in the steel pipe is inconvenient to recycle after detection, and the detection is troublesome.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front sectional view of the connecting and sealing member of the present invention;
FIG. 3 is a left side view of the compression bag of the present invention;
Fig. 4 is a right sectional view of the utility model at a-a position in fig. 1.
in the figure: 1. a pressure gauge; 2. sealing the bag; 3. a steel pipe; 4. connecting a sealing element; 401. a sealing plug; 402. an externally threaded tube; 403. a seal ring; 404. an internally threaded tube; 405. a connecting pipe; 406. a rubber plug; 5. compressing the bag; 6. an exhaust valve; 7. an air pump; 8. and (4) air holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a technical solution: a steel pipe air tightness detection device comprises a pressure instrument 1, wherein the pressure instrument 1 is used for detecting the air pressure inside a sealing bag 2, when the air pressure inside the sealing bag 2 is different, the number of the pressure instrument 1 is correspondingly changed, one end of the pressure instrument 1 is fixedly connected with one side of the sealing bag 2, one side, far away from the pressure instrument 1, of the sealing bag 2 is provided with a steel pipe 3, pipe orifices at two ends of the steel pipe 3 are movably connected with connecting sealing parts 4, opposite ends of the two connecting sealing parts 4 extend into the steel pipe 3, deviating ends of the two connecting sealing parts 4 are respectively fixedly connected with opposite surfaces of the sealing bag 2 and a compression bag 5, one side, far away from the steel pipe 3, of the compression bag 5 is provided with an exhaust valve 6, the exhaust valve 6 exhausts air but does not intake air, when the air inside the compression bag 5 is exhausted, air cannot be sucked backwards, a valve port of the exhaust valve 6, the pneumatic valve mouth swing joint of discharge valve 6 has air pump 7, compression bag 5 and seal bag 2 all are linked together through connecting sealing member 4 and steel pipe 3, air pump 7 is electronic air pump, use electric power as the air pump of power, through the incessant compressed air of electric power, produce atmospheric pressure, the power supply mode of air pump 7 is external power source, the inside of seal bag 2 and compression bag 5 all fills up the cotton fibre, the outer packing bag of seal bag 2 and compression bag 5 is the plastic bag, form through nylon and plastics complex.
as a technical optimization scheme of the utility model, the connection sealing element 4 comprises a sealing plug 401, an external thread pipe 402, a sealing ring 403, an internal thread pipe 404, a connecting pipe 405 and a rubber plug 406, the sealing plug 401 is fixedly connected with one end of the external thread pipe 402, the sealing plug 401 is movably connected with the inside of the steel pipe 3, the sealing ring 403 is movably sleeved on the surface of the external thread pipe 402, the sealing ring 403 is lapped on one end of the steel pipe 3, one end of the sealing ring 403 far away from the steel pipe 3 is fixedly connected with one end of the internal thread pipe 404, the inner wall of the internal thread pipe 404 is in threaded connection with the surface of the external thread pipe 402, one end of the internal thread pipe 404 far away from the steel pipe 3 is provided with an air hole 8, the rubber plug 406 is fixedly connected with one side of the inner wall of the internal thread pipe 404 close to the air hole 8, one end, sealing bag 2 and compression bag 5 fixed connection respectively deviate from the end at two connecting pipes 405, and the sealing plug 401 material is soft rubber, and sealing plug 401 and external screw thread pipe 402 are for being connected a body structure, and gas pocket 8 plays the effect of intercommunication, guarantees that connecting seal 4 is linked together with sealing bag 2, compression bag 5 and steel pipe 3.
As a technical optimization scheme, sealing plug 401's inner wall is the round platform form, rubber plug 406's surface and sealing plug 401's inner wall swing joint, sealing plug 401's shape and rubber plug 406's shape looks adaptation, and rubber plug 406 includes chock plug and gag lever post, and the chock plug is the laminating of round platform form and sealing plug 401's inner wall, and sealing plug 401's inner wall aperture reduces along the direction of keeping away from external screw tube 402 gradually.
As a technical optimization scheme of the utility model, sealing plug 401 fixed connection is in the axis position department of internal thread pipe 404, and gas pocket 8 is the one end of internal thread pipe 404 that the annular distributes, guarantees external thread pipe 402 and connecting pipe 405 intercommunication through gas pocket 8.
When in use, firstly, the steel pipe 3 is transversely placed on the ground, two connecting sealing pieces 4 are installed at two ends of the steel pipe 3, when in installation, firstly, a sealing plug 401 carrying an external threaded pipe 402 is pressed into the steel pipe 3 from the pipe opening of the steel pipe 3, the sealing plug 401 is tightly attached to the inner wall of the steel pipe 3, part of the external threaded pipe 402 is exposed outside the steel pipe 3, a rubber plug 406 is inserted into the sealing plug 401 along the pipe opening of the external threaded pipe 402, the internal threaded pipe 404 is sleeved on the surface of the external threaded pipe 402 in a threaded manner, the internal threaded pipe 404 is rotated, the internal threaded pipe 404 rotates along the thread direction to move to one side close to the steel pipe 3, at the moment, the sealing ring 403 is tightly attached to the pipe opening of the steel pipe 3, the plug head of the rubber plug 406 moves to the position with smaller hole diameter of the sealing plug 401 and tightly presses the inner wall of the, the two connecting sealing parts 4 are connected with the steel pipe 3 in the same way, namely the sealing bag 2 and the compression bag 5 are connected with two ends of the steel pipe 3 in a sealing way, a pump opening of the air pump 7 is sleeved on the exhaust valve 6 of the compression bag 5 and is connected with the power supply of the air pump 7, the air pump 7 works, the air in the sealing bag 2 is gradually exhausted through the connecting sealing parts 4, the steel pipe 3, the compression bag 5 and the connecting sealing parts 4, the compression bag 5 and the sealing bag 2 are in a compression shape, the air pump 7 is taken down and the exhaust valve 6 is closed by the sealing cover, at the moment, the air pressure of the sealing bag 2 detected by the pressure instrument 1 is observed, as the air in the sealing bag 2 is pumped out, the sealing bag 2, the compression bag 5 and the connecting sealing parts 4 are in a sealing state, the external air pressure is larger than the air pressure in the sealing bag 2, if the air tightness of the steel pipe 3 is good, the indication of the pressure instrument 1, air in the external environment is pressed into the steel pipe 3 from the welding seam of the steel pipe 3, so that the air enters the sealing bag 2, and the reading of the pressure instrument 1 is changed.
To sum up can, the utility model discloses a set up pressure instrument 1, seal bag 2, connect sealing member 4, compression bag 5 and air pump 7, solved and need transport the water source when detecting 3 gas tightness of steel pipe through water, and detect the inconvenient recycle in inside water source of back steel pipe 3, detect comparatively trouble problem.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a steel pipe gas tightness detection device, includes pressure instrument (1), its characterized in that: one end of pressure instrument (1) and one side fixed connection of seal bag (2), one side that pressure instrument (1) was kept away from in seal bag (2) is provided with steel pipe (3), the equal swing joint in the mouth of pipe at steel pipe (3) both ends has connecting seal piece (4), two the looks remote site of connecting seal piece (4) all extends to the inside of steel pipe (3), two the end that deviates from of connecting seal piece (4) respectively with the opposite face fixed connection of seal bag (2) and compression bag (5), one side that steel pipe (3) were kept away from in compression bag (5) is provided with discharge valve (6), the pneumatic valve mouth swing joint of discharge valve (6) has air pump (7), compression bag (5) and seal bag (2) all are linked together through connecting seal piece (4) and steel pipe (3).
2. The steel pipe airtightness detection apparatus according to claim 1, wherein: connect sealing member (4) including sealing plug (401), external screw tube (402), sealing washer (403), internal thread pipe (404), connecting pipe (405) and rubber buffer (406), sealing plug (401) fixed connection is in the one end of external screw tube (402), sealing plug (401) swing joint is in the inside of steel pipe (3), sealing washer (403) activity cup joints the surface at external screw tube (402), and sealing washer (403) overlap joint is in the one end of steel pipe (3), the one end that steel pipe (3) were kept away from in sealing washer (403) and the one end fixed connection of internal thread pipe (404), the inner wall of internal thread pipe (404) and the surface threaded connection of external screw tube (402), air hole (8) have been seted up to the one end that steel pipe (3) were kept away from in internal thread pipe (404), rubber buffer (406) fixed connection is in one side that internal thread pipe (404) inner wall is close to air hole (8), the one end that internal thread pipe (404) was kept away from in rubber buffer (406) extends to the inside of sealing plug (401), the one end of steel pipe (3) is kept away from in internal thread pipe (404) fixed connection connecting pipe (405), sealing bag (2) and compression bag (5) fixed connection are respectively in deviating from the end of two connecting pipes (405).
3. The steel pipe airtightness detection apparatus according to claim 2, wherein: the inner wall of the sealing plug (401) is in a round table shape, the surface of the rubber plug (406) is movably connected with the inner wall of the sealing plug (401), and the shape of the sealing plug (401) is matched with that of the rubber plug (406).
4. The steel pipe airtightness detection apparatus according to claim 2, wherein: the sealing plug (401) is fixedly connected to the axis position of the internal thread pipe (404), and the air holes (8) are annularly distributed at one end of the internal thread pipe (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519937.8U CN209745499U (en) | 2019-04-16 | 2019-04-16 | Steel pipe gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519937.8U CN209745499U (en) | 2019-04-16 | 2019-04-16 | Steel pipe gas tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209745499U true CN209745499U (en) | 2019-12-06 |
Family
ID=68721179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920519937.8U Expired - Fee Related CN209745499U (en) | 2019-04-16 | 2019-04-16 | Steel pipe gas tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209745499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873628A (en) * | 2020-01-16 | 2020-03-10 | 潍坊东方钢管有限公司 | External detection device for airtightness of non-uniform-diameter pipelines |
| CN113681227A (en) * | 2021-09-29 | 2021-11-23 | 中国航发动力股份有限公司 | Pipeline joint part welding tool structure and pipeline port limiting detection method |
-
2019
- 2019-04-16 CN CN201920519937.8U patent/CN209745499U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873628A (en) * | 2020-01-16 | 2020-03-10 | 潍坊东方钢管有限公司 | External detection device for airtightness of non-uniform-diameter pipelines |
| CN113681227A (en) * | 2021-09-29 | 2021-11-23 | 中国航发动力股份有限公司 | Pipeline joint part welding tool structure and pipeline port limiting detection method |
| CN113681227B (en) * | 2021-09-29 | 2023-11-03 | 中国航发动力股份有限公司 | Pipeline joint part welding tool structure and pipeline port limit detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20210416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |