CN215000176U - End sealing structure for air tightness detection of HDPE double-wall corrugated pipe - Google Patents
End sealing structure for air tightness detection of HDPE double-wall corrugated pipe Download PDFInfo
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- CN215000176U CN215000176U CN202121252014.4U CN202121252014U CN215000176U CN 215000176 U CN215000176 U CN 215000176U CN 202121252014 U CN202121252014 U CN 202121252014U CN 215000176 U CN215000176 U CN 215000176U
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Abstract
The utility model discloses an end sealing structure for detecting the air tightness of HDPE double-wall corrugated pipe, which comprises an installation supporting structure arranged inside one end of the corrugated pipe, wherein the installation supporting structure comprises a supporting block which is integrally of a cylindrical structure, a first sealing air bag is sleeved on the supporting block, the first sealing air bag is connected with a first air supply pipe, the far end of the first air supply pipe extends to the outside of the end face of the corrugated pipe and is used for being connected with an inflating device, and after the sealing air bag expands, the first sealing air bag can be attached to and supported on the supporting block and the inner circumferential surface of the corrugated pipe; the installation supporting structure further comprises a supporting barrel which is of a barrel-shaped structure, the supporting barrel sleeve is arranged at the end part of the corrugated pipe, an annular mounting groove is formed in the position, corresponding to the supporting block, on the inner peripheral wall of the supporting barrel, and a second sealing air bag is arranged in the mounting groove. The utility model has the characteristics of simple structure, the gas tightness is better, can be better avoid the bellows tip to warp, the reliability is higher.
Description
Technical Field
The utility model belongs to the technical field of HDPE double-walled bellows, concretely relates to end seal structure is used in HDPE double-walled bellows gas tightness detection.
Background
The HDPE double-wall corrugated pipe is produced by adopting advanced compounding technology, utilizing the characteristics of good toughness of polyethylene material and high strength of polypropylene material, using proper amount of polyethylene material and polypropylene main material as main high-molecular material, filling auxiliary material and using advanced formula and adopting high-temperature polymerization to make composite extrusion.
In the air tightness detection and actual construction and installation processes of the HDPE double-wall corrugated pipe, one end of the HDPE double-wall corrugated pipe needs to be sealed. The applicant has designed a HEPE double-wall bellows end sealing device of patent No. (CN212617033U), comprising an inner plate and an outer plate, both of which are located inside the bellows and are arranged perpendicular to the axis of the bellows; an outward supporting shaft is fixedly connected to the inner plate, the outer end of the supporting shaft penetrates through the abdicating hole in the outer plate and extends to the outside, and an outer plate axial limiting structure is arranged between the outer plate and the supporting shaft to limit the outer plate to move outwards; a cylindrical supporting block is arranged between the inner plate and the outer plate, and a mounting hole is formed in the supporting block and is used for a supporting shaft to pass through; and form annular installation space between inner panel, planking and the supporting shoe be provided with wholly and be annular sealed gasbag in the installation space, be connected with the air supply pipe on the sealed gasbag, the air supply pipe distal end extends to the outside and forms the air feed link, and the air feed link is used for linking to each other with aeration equipment and aerifys, and sealed gasbag inflation back, the utility model has the advantages of can adjust according to sealed demand better. However, in practice, the applicant has found that the end of the bellows is subjected to an outwardly expanding force which deforms the end of the bellows; when the internal pressure reaches a certain degree, a single air bag is adopted for sealing, and the phenomenon of leakage still exists. And when the pressure in the corrugated pipe is increased, the whole sealing structure has a large risk of falling off.
Therefore, how to provide an end sealing structure for airtightness detection of an HDPE double-wall corrugated pipe, which has a simple structure, better airtightness, better capability of avoiding deformation of the end of the corrugated pipe, and higher reliability, is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a simple structure, the gas tightness is better, can be better avoid bellows tip to warp, the higher HDPE double-walled bellows gas tightness of reliability detects uses end seal structure.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an end sealing structure for gas tightness detection of an HDPE double-wall corrugated pipe comprises an installation supporting structure arranged inside one end of the corrugated pipe, wherein the installation supporting structure comprises a supporting block which is integrally in a cylindrical structure, a first sealing air bag is sleeved on the supporting block, a first air supply pipe is connected to the first sealing air bag, the far end of the first air supply pipe extends to the outside of the end face of the corrugated pipe and is used for being connected with an inflating device, and after the sealing air bag expands, the first sealing air bag can be attached to and supported on the supporting block and the inner circumferential surface of the corrugated pipe; the installation and support structure is characterized by also comprising a support barrel in a barrel-shaped structure, wherein the support barrel is sleeved at the end part of the corrugated pipe, an annular installation groove is formed in the position, corresponding to the support block, on the inner peripheral wall of the support barrel, a second sealing air bag is arranged in the installation groove, a circle of annular arrangement groove is formed in the bottom surface inside the support barrel, and a third sealing air bag is arranged in the arrangement groove; and the second sealed air bag and the third sealed air bag are respectively connected with a second air supply pipe and a third air supply pipe, the far ends of the second air supply pipe and the third air supply pipe respectively extend to the outside and are used for being connected with inflating equipment, the second sealed air bag is enabled to be attached and supported on the outer circumferential surface of the corrugated pipe, and the third sealed air bag is attached and supported on the end surface of the corrugated pipe.
Thus, in the structure, the first sealing air bag, the second sealing air bag and the third sealing air bag can be adopted to seal the corrugated pipe at the same time, so that the air tightness is better. And first sealed gasbag is to providing the outside expanded power that rises to the bellows, and the second sealed gasbag is to think the bellows to provide the power that presss from both sides tight inside and draw in, and first sealed gasbag and second sealed gasbag still press from both sides tight the bellows tip when can sealing up the bellows, can be better avoid whole structure to deviate from the bellows tip, can also be better avoid the bellows tip to warp. The third sealing air bag can seal the end face of the corrugated pipe, and the sealing reliability is further improved.
As optimization, the mounting and supporting structure further comprises an inner plate and an outer plate which are arranged on two sides of the supporting block, an outward supporting shaft is fixedly connected on the inner plate, the outer end of the supporting shaft penetrates through the supporting block and the outer plate and is connected and fixed in a fixing hole arranged in the supporting barrel, a through hole is arranged on the outer circumferential surface of the supporting block, and the inner end of the through hole is intersected with the mounting hole arranged in the supporting block; the supporting shaft is of a hollow shaft structure, and the outer end of the supporting shaft is provided with a plug; correspond on the back shaft the through-hole is provided with first passing hole, and the distal end of first air supply pipe passes in proper order the through-hole, pass hole and prop up the epaxial hole of axle and wear out to the outer terminal surface outside of back shaft from the connecting hole on the end cap.
Like this, whole installation bearing structure is simpler, design more reasonable and make things convenient for arranging of first air supply pipe more.
Preferably, a second through hole is formed at the outer end of the support shaft, and the distal end of the second air supply pipe penetrates through the second through hole and is connected with the outer end of the first air supply pipe.
Like this, structural design is more reasonable, can make things convenient for arranging of second air supply pipe to set up more.
Preferably, a circle of annular mounting protrusion is arranged on the inner circumferential wall of the supporting barrel, and the mounting groove is formed in the mounting protrusion.
Like this, through design installation arch, the shaping obtains the mounting groove better.
Preferably, a circle of annular mounting protrusion is arranged on the bottom surface of the supporting barrel, and the mounting protrusion is provided with the mounting groove.
Like this, through design arrangement protrusion, can the shaping better obtain the arrangement groove.
Preferably, the outer side surface of the inner plate and the inner side surface of the outer plate are both provided with sealing gaskets, and the two side surfaces of the first sealing air bag are respectively attached and supported on the sealing gaskets.
Therefore, the first sealing air bag has better sealing effect, and simultaneously has the effect of protecting the first sealing air bag.
As optimization, the whole outer circumferential surface of the supporting block is an inwards concave arc-shaped surface.
Like this, structural design is more reasonable, and the area of contact with first sealed gasbag is bigger.
Preferably, the supporting block is made of rubber.
Therefore, the structure is simpler, and the material selection is more reasonable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to FIG. 1: an end sealing structure for gas tightness detection of an HDPE double-wall corrugated pipe comprises an installation supporting structure arranged inside one end of a corrugated pipe 1, wherein the installation supporting structure comprises a supporting block 2 which is integrally of a cylindrical structure, a first sealing air bag 3 is sleeved on the supporting block, a first air supply pipe 4 is connected to the first sealing air bag, the far end of the first air supply pipe extends to the outside of the end face of the corrugated pipe and is used for being connected with an inflating device, and after the sealing air bag expands, the first sealing air bag can be attached to and supported on the supporting block and the inner circumferential surface of the corrugated pipe; the installation supporting structure also comprises a supporting barrel 5 which is of a barrel-shaped structure, the supporting barrel is sleeved at the end part of the corrugated pipe, an annular installation groove is arranged on the inner peripheral wall of the supporting barrel and at a position corresponding to the supporting block, a second sealing air bag 6 is arranged in the installation groove, a circle of annular arrangement groove is arranged on the inner bottom surface of the supporting barrel, and a third sealing air bag 7 is arranged in the arrangement groove; and the second sealed air bag and the third sealed air bag are respectively connected with a second air supply pipe 8 and a third air supply pipe 9, the far ends of the second air supply pipe and the third air supply pipe respectively extend to the outside and are used for being connected with inflating equipment, the second sealed air bag is attached and supported on the outer circumferential surface of the corrugated pipe, and the third sealed air bag is attached and supported on the end surface of the corrugated pipe.
Thus, in the structure, the first sealing air bag, the second sealing air bag and the third sealing air bag can be adopted to seal the corrugated pipe at the same time, so that the air tightness is better. And first sealed gasbag is to providing the outside expanded power that rises to the bellows, and the second sealed gasbag is to think the bellows to provide the power that presss from both sides tight inside and draw in, and first sealed gasbag and second sealed gasbag still press from both sides tight the bellows tip when can sealing up the bellows, can be better avoid whole structure to deviate from the bellows tip, can also be better avoid the bellows tip to warp. The third sealing air bag can seal the end face of the corrugated pipe, and the sealing reliability is further improved.
In this specific embodiment, the mounting and supporting structure further comprises an inner plate 10 and an outer plate 11 which are arranged at two sides of the supporting block, an outward supporting shaft 12 is fixedly connected to the inner plate, the outer end of the supporting shaft passes through the supporting block and the outer plate and is fixedly connected to a fixing hole of the supporting barrel, a through hole is arranged on the outer circumferential surface of the supporting block, and the inner end of the through hole is intersected with the mounting hole of the supporting block; the supporting shaft is of a hollow shaft structure, and the outer end of the supporting shaft is provided with a plug 13; correspond on the back shaft the through-hole is provided with first passing hole, and the distal end of first air supply pipe passes in proper order the through-hole, pass hole and prop up the epaxial hole of axle and wear out to the outer terminal surface outside of back shaft from the connecting hole on the end cap.
Like this, whole installation bearing structure is simpler, design more reasonable and make things convenient for arranging of first air supply pipe more.
In the embodiment, a second through hole is formed at the outer end of the support shaft, and the distal end of the second air supply pipe penetrates through the second through hole and is connected with the outer end of the first air supply pipe.
Like this, structural design is more reasonable, can make things convenient for arranging of second air supply pipe to set up more.
In this embodiment, a ring of annular mounting protrusions 14 are provided on the inner circumferential wall of the support barrel, and the mounting grooves are provided on the mounting protrusions.
Like this, through design installation arch, the shaping obtains the mounting groove better.
In the specific embodiment, a circle of annular mounting protrusion 15 is arranged on the bottom surface of the support barrel, and the mounting protrusion is provided with the mounting groove.
Like this, through design arrangement protrusion, can the shaping better obtain the arrangement groove.
In the present embodiment, the gaskets 16 are provided on both the outer side surface of the inner panel and the inner side surface of the outer panel, and both side surfaces of the first airbag are respectively attached to and supported by the gaskets.
Therefore, the first sealing air bag has better sealing effect, and simultaneously has the effect of protecting the first sealing air bag.
In this embodiment, the outer circumferential surface of the supporting block is an arc surface that is concave as a whole.
Like this, structural design is more reasonable, and the area of contact with first sealed gasbag is bigger.
In this embodiment, the supporting block is made of rubber.
Therefore, the structure is simpler, and the material selection is more reasonable.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. An end sealing structure for gas tightness detection of an HDPE double-wall corrugated pipe comprises an installation supporting structure arranged inside one end of the corrugated pipe, wherein the installation supporting structure comprises a supporting block which is integrally in a cylindrical structure, a first sealing air bag is sleeved on the supporting block, a first air supply pipe is connected to the first sealing air bag, the far end of the first air supply pipe extends to the outside of the end face of the corrugated pipe and is used for being connected with an inflating device, and after the sealing air bag expands, the first sealing air bag can be attached to and supported on the supporting block and the inner circumferential surface of the corrugated pipe; the installation and support structure is characterized by also comprising a support barrel in a barrel-shaped structure, wherein the support barrel is sleeved at the end part of the corrugated pipe, an annular installation groove is formed in the position, corresponding to the support block, on the inner peripheral wall of the support barrel, a second sealing air bag is arranged in the installation groove, a circle of annular arrangement groove is formed in the bottom surface inside the support barrel, and a third sealing air bag is arranged in the arrangement groove; and the second sealed air bag and the third sealed air bag are respectively connected with a second air supply pipe and a third air supply pipe, the far ends of the second air supply pipe and the third air supply pipe respectively extend to the outside and are used for being connected with inflating equipment, the second sealed air bag is enabled to be attached and supported on the outer circumferential surface of the corrugated pipe, and the third sealed air bag is attached and supported on the end surface of the corrugated pipe.
2. The end sealing structure for airtightness detection of HDPE double-wall corrugated pipe according to claim 1, wherein: the mounting and supporting structure also comprises an inner plate and an outer plate which are arranged at two sides of the supporting block, an outward supporting shaft is fixedly connected on the inner plate, the outer end of the supporting shaft penetrates through the supporting block and the outer plate and is fixedly connected in a fixing hole arranged in the supporting barrel, a through hole is arranged on the outer circumferential surface of the supporting block, and the inner end of the through hole is intersected with a mounting hole arranged in the supporting block; the supporting shaft is of a hollow shaft structure, and the outer end of the supporting shaft is provided with a plug; correspond on the back shaft the through-hole is provided with first passing hole, and the distal end of first air supply pipe passes in proper order the through-hole, pass hole and prop up the epaxial hole of axle and wear out to the outer terminal surface outside of back shaft from the connecting hole on the end cap.
3. The end sealing structure for airtightness detection of HDPE double-wall corrugated pipe according to claim 2, wherein: and a second through hole is formed at the outer end of the support shaft, and the distal end of the second air supply pipe penetrates through the second through hole and is connected with the outer end of the first air supply pipe.
4. The end sealing structure for airtightness detection of HDPE double-wall corrugated pipe according to claim 1, wherein: the inner peripheral wall of the supporting barrel is provided with a circle of annular mounting protrusion, and the mounting groove is arranged on the mounting protrusion.
5. The end sealing structure for airtightness detection of HDPE double-wall corrugated pipe according to claim 4, wherein: a circle of annular mounting protrusion is arranged on the bottom surface of the supporting barrel, and the mounting groove is formed in the mounting protrusion.
6. The end sealing structure for airtightness detection of HDPE double-wall corrugated pipe according to claim 1, wherein: the outer side surface of the inner plate and the inner side surface of the outer plate are both provided with sealing gaskets, and the two side surfaces of the first sealing air bag are respectively attached and supported on the sealing gaskets.
7. The end sealing structure for airtightness detection of HDPE double-wall corrugated pipe according to claim 1, wherein: the whole outer circumferential surface of the supporting block is an inwards concave arc-shaped surface.
8. The end sealing structure for airtightness detection of HDPE double-wall corrugated pipe according to claim 1, wherein: the supporting block is made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252014.4U CN215000176U (en) | 2021-06-05 | 2021-06-05 | End sealing structure for air tightness detection of HDPE double-wall corrugated pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252014.4U CN215000176U (en) | 2021-06-05 | 2021-06-05 | End sealing structure for air tightness detection of HDPE double-wall corrugated pipe |
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| CN215000176U true CN215000176U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121252014.4U Active CN215000176U (en) | 2021-06-05 | 2021-06-05 | End sealing structure for air tightness detection of HDPE double-wall corrugated pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429348A (en) * | 2023-06-12 | 2023-07-14 | 临沂市计量检定所 | Tightness detection device of environmental protection equipment |
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2021
- 2021-06-05 CN CN202121252014.4U patent/CN215000176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429348A (en) * | 2023-06-12 | 2023-07-14 | 临沂市计量检定所 | Tightness detection device of environmental protection equipment |
| CN116429348B (en) * | 2023-06-12 | 2023-09-12 | 临沂市计量检定所 | Tightness detection device of environmental protection equipment |
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