CN113236869B - Sealing structure between pipeline and wall plate and ship - Google Patents
Sealing structure between pipeline and wall plate and ship Download PDFInfo
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- CN113236869B CN113236869B CN202110713024.1A CN202110713024A CN113236869B CN 113236869 B CN113236869 B CN 113236869B CN 202110713024 A CN202110713024 A CN 202110713024A CN 113236869 B CN113236869 B CN 113236869B
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- block
- pipeline
- elastic sealing
- wall
- outer sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
Abstract
The invention discloses a sealing structure between a pipeline and a wall plate and a ship, and belongs to the technical field of ships. In the sealing structure between the pipeline and the wall plate, the wall plate is provided with a mounting hole, the pipeline penetrates through the mounting hole and comprises an outer sleeve, an elastic sealing block and a filling block, the outer sleeve penetrates through the mounting hole, and the outer side wall of the outer sleeve is connected with the wall plate in a sealing manner; the elastic sealing block is arranged in the outer sleeve in a penetrating mode, a through hole is formed in the elastic sealing block, the pipeline is arranged in the through hole in a penetrating mode, the inner hole wall of the through hole abuts against the outer side wall of the pipeline, the outer side wall of the elastic sealing block abuts against the inner side wall of the outer sleeve, and an installation groove is formed in the elastic sealing block in the axial direction; the packing block is filled in the mounting groove, and the packing block is in interference fit with the mounting groove, so that the elastic sealing block is extruded between the outer sleeve and the pipeline. The ship comprises the sealing structure between the pipeline and the wall plate. The sealing structure between the pipeline and the wall plate and the ship improve the use safety, reduce the construction difficulty and improve the use adaptability.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a sealing structure between a pipeline and a wall plate and a ship.
Background
Among the prior art, the seal structure between pipeline and wallboard has two kinds of schemes: the first scheme is that the outer side wall of the pipeline is directly welded with the wall plate, however, the pipeline expands with heat and contracts with cold in the using process, the wall plate deforms along with the expansion, irreversible damage is easily formed on the wall plate, and the safe use is affected; the second scheme is that the sealing structure of the ROXTEC is arranged between the pipeline and the wallboard, the sealing structure of the ROXTEC comprises a rubber plug, the pipeline and the wallboard are sealed by extruding the rubber plug, the transverse compensation energy between the pipeline and the wallboard is too small due to the small elastic deformation of the rubber plug, and when the tolerance size of the pipeline is large, the rubber plug is difficult to meet the installation requirement.
Disclosure of Invention
An object of the present invention is to provide a sealing structure between a pipeline and a wall plate, which enables the pipeline and the wall plate to be connected in a sealing manner, thereby improving the use safety, reducing the construction difficulty, and improving the use adaptability.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a seal structure between pipeline and wallboard, has seted up the mounting hole on the wallboard, the pipeline wears to locate the mounting hole includes:
the outer sleeve is arranged in the mounting hole in a penetrating mode, and the outer side wall of the outer sleeve is connected with the wall plate in a sealing mode;
the elastic sealing block is arranged on the outer sleeve in a penetrating mode, a through hole is formed in the elastic sealing block, the pipeline is arranged in the through hole in a penetrating mode, the inner hole wall of the through hole abuts against the outer side wall of the pipeline, the outer side wall of the elastic sealing block abuts against the inner side wall of the outer sleeve, and an installation groove is formed in the elastic sealing block in the axial direction;
the filling block is filled in the mounting groove, and the filling block is in interference fit with the mounting groove, so that the elastic sealing block is extruded between the outer sleeve and the pipeline.
Optionally, the mounting groove is an annular groove, and the filling block is an annular block.
Optionally, the mounting groove is a wedge-shaped groove, the notch of the mounting groove is larger than the groove bottom, and the filling block is a wedge-shaped block matched with the wedge-shaped groove.
Optionally, the elastic sealing block is provided with two opposite mounting grooves, and the two mounting grooves are respectively provided with the filling block.
Optionally, the resilient sealing block and the filler block are connected by a fastener.
Optionally, the sealing device further comprises a cover plate fixedly arranged at an end of the elastic sealing block, so that the filling block is axially arranged between the cover plate and the elastic sealing block.
Optionally, the cover plate further comprises an adjusting pad, and the adjusting pad is arranged between the cover plate and the filling block.
Optionally, the elastic sealing block is a rubber block.
Optionally, the outer sleeve is a steel pipe, and the steel pipe and the wall plate are sealed by welding.
Another object of the present invention is to provide a ship which can improve safety in use, reduce difficulty in construction, and improve adaptability in use.
In order to achieve the purpose, the invention adopts the following technical scheme:
a ship comprises a wall plate, a pipeline penetrating through the wall plate and a sealing structure between the pipeline and the wall plate.
The invention has the beneficial effects that:
according to the sealing structure between the pipeline and the wall plate, the filling block is in interference fit with the mounting groove, and the filling block can extrude the wall of the mounting groove to enable the elastic sealing block to generate transverse deformation in the process of filling the mounting groove, so that the elastic sealing block is extruded on the outer sleeve and the pipeline, and the inner side wall of the outer sleeve is in sealing connection with the pipeline through the elastic sealing block; and the outer side wall of the outer sleeve is hermetically connected with the wall plate, so that the wall plate is hermetically connected with the pipeline through the outer sleeve, the sealing block and the filling block. The elastic deformation of the elastic sealing block is utilized, and the elastic deformation amount of the elastic sealing block is adjusted by extruding the sealing block, so that the sealing between the pipeline and the outer sleeve is realized, the structure is simple, and the installation is convenient. Because the coaxiality of the installation between the pipeline and the wall plate can be deviated certainly, the insertion depth of the filling block can be adjusted or the shape and the size of the filling block can be adjusted at the moment so as to adjust the deformation of the elastic sealing block and provide corresponding transverse compensation quantity, so that the elastic sealing block can achieve a better sealing effect. When the pipeline was because the axial and radial deformation that expend with heat and contract with cold arouse, the elastic sealing piece still can seal because the elastic action of self can be deformed thereupon, can not produce irreversible destruction to the wallboard, and the security is high, and this seal structure has better adaptability to service environment. The sizes of the filling block and the elastic sealing block can be adjusted according to the sizes of the pipeline and the outer sleeve, so that the use requirement is met.
According to the ship provided by the invention, by adopting the sealing structure between the pipeline and the wall plate, the elastic deformation of the elastic sealing block is utilized, and the sealing between the pipeline and the outer sleeve pipe is realized by extruding the sealing block, so that the structure is simple, and the installation is convenient; when the installation coaxiality deviation occurs between the pipeline and the wall plate, the sealing structure has better adaptability to the installation precision, and the construction difficulty is reduced because the coaxiality requirement on the pipeline installation is reduced. When axial and radial deformation that arouses, the elastic sealing piece can be along with the pipeline because the elastic action of self warp because expend with heat and contract with cold and carry out deformation, and this seal structure has better adaptability to service environment, has improved the safety in utilization.
Drawings
FIG. 1 is a cross-sectional view of a seal between a pipe and a wall panel provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a resilient seal block provided in accordance with an embodiment of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of a stuffing block provided in accordance with an embodiment of the present invention;
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
FIG. 6 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a conditioning pad according to an embodiment of the present invention.
In the figure:
100. a wall panel; 200. a pipeline;
1. an outer sleeve;
2. an elastic sealing block; 21. mounting grooves; 22. a through hole; 23. a first connection hole; 24. an opening;
3. filling blocks; 31. a second connection hole;
41. a bolt; 42. a nut;
5. a cover plate; 51. a third connection hole;
6. an adjustment pad; 61. and a fourth connecting hole.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
In the present embodiment, as shown in fig. 1, a wall plate 100 is provided with a mounting hole, a pipeline 200 is inserted into the mounting hole, and the sealing structure between the pipeline and the wall plate includes an outer sleeve 1, an elastic sealing block 2, and a filling block 3; specifically, the outer sleeve 1 is arranged in the mounting hole in a penetrating manner, and the outer side wall of the outer sleeve 1 is connected with the wall plate 100 in a sealing manner; the elastic sealing block 2 is arranged on the outer sleeve 1 in a penetrating mode, a through hole 22 is formed in the elastic sealing block 2, the pipeline 200 is arranged on the through hole 22 in a penetrating mode, the inner hole wall of the through hole 22 abuts against the outer side wall of the pipeline 200, the outer side wall of the elastic sealing block 2 abuts against the inner side wall of the outer sleeve 1, and the elastic sealing block 2 is axially provided with an installation groove 21; the filling block 3 is filled in the mounting groove 21, and the filling block 3 is in interference fit with the mounting groove 21, so that the elastic sealing block 2 is extruded between the outer sleeve 1 and the pipeline 200.
Because the filling block 3 is in interference fit with the mounting groove 21, in the process that the filling block 3 is filled in the mounting groove 21, the groove wall of the mounting groove 21 is extruded to enable the elastic sealing block 2 to generate transverse deformation, so that the elastic sealing block 2 is extruded on the outer sleeve 1 and the pipeline 200, and the inner side wall of the outer sleeve 1 is hermetically connected with the pipeline 200 through the elastic sealing block 2; and the outer side wall of the outer sleeve 1 is hermetically connected with the wall plate 100, so that the wall plate 100 is hermetically connected with the pipeline 200 through the outer sleeve 1, the sealing block and the filling block 3. The elastic deformation of the elastic sealing block 2 is utilized, and the elastic deformation of the elastic sealing block 2 is adjusted by extruding the sealing block, so that the sealing between the pipeline 200 and the outer sleeve 1 is realized, the structure is simple, and the installation is convenient. Because the coaxiality of the pipeline 200 and the wallboard 100 can deviate certainly, the insertion depth of the filling block 3 can be adjusted or the shape and the size of the filling block 3 can be adjusted at the moment so as to adjust the deformation of the elastic sealing block 2 and provide corresponding transverse compensation quantity, so that the sealing structure achieves a better sealing effect, has better adaptability to the installation precision, and reduces the construction difficulty due to the reduction of the coaxiality requirement on the installation of the pipeline 200. Pipeline 200 is because when the axial and radial deformation that expend with heat and contract with cold arouse, elastic sealing block 2 can be deformed thereupon owing to the elastic action of self, still can seal, can not produce irreversible destruction to wallboard 100, and the security is high, and this seal structure has better adaptability to service environment. The sizes of the filling block 3 and the elastic sealing block 2 can be adjusted according to the sizes of the pipeline 200 and the outer sleeve 1, so that the use requirement is met.
In particular, the filler block 3 is made of an elastic material, making it elastic, the elastic filler block 3 increasing the applicability of the sealing structure when the axial and radial deformations are caused by a deterioration of the installation coaxiality between the pipe 200 and the panel 100 or by a shrinkage of the thermal barrier of the pipe 200. In this embodiment, the elastic sealing block 2 is a rubber block, the filling block 3 is also a rubber block, and the rubber material has elasticity, is wear-resistant, cold-resistant and not easy to leak, so that the sealing structure can meet the requirements of strong applicability, wear resistance, good air tightness, good water tightness and the like.
Optionally, the outer sleeve 1 is a steel pipe, and the steel pipe is welded to the wall plate 100 for sealing, so as to achieve a sealed connection between the outer sleeve 1 and the wall plate 100. Specifically, the welding process of the steel pipe and the wall plate 100 is placed at the manufacturing stage of the ship body, and the welding process is moved forward, so that the difficulty of the sealing connection process between the pipeline 200 and the wall plate 100 is reduced.
As shown in fig. 2 to 5, optionally, the mounting groove 21 is an annular groove, and the filling block 3 is an annular block, so that the contact area between the filling block 3 and the mounting groove 21 is increased, the elastic deformation of the filling block 3 can be increased, and the sealing effect is improved.
As shown in fig. 2 to 5, optionally, the installation groove 21 is a wedge-shaped groove, the notch of the installation groove 21 is larger than the groove bottom, the filling block 3 is a wedge-shaped block adapted to the wedge-shaped groove, and the filling block 3 presses the elastic sealing block 2 during installation into the wedge-shaped groove, so that the elastic sealing block 2 generates a transverse deformation to press the pipeline 200 and the outer sleeve 1, and the deeper the installation depth of the wedge-shaped block in the installation groove 21 is, the larger the deformation of the elastic sealing block 2 is, which facilitates adjustment of the deformation amount of the elastic sealing block 2; and the side wall of wedge block and the side wall of wedge groove have the guide effect, make things convenient for installation filling block 3.
As shown in fig. 2 to 5, optionally, two opposite mounting grooves 21 are formed in the elastic sealing block 2, and the two mounting grooves 21 are respectively provided with the filling block 3, so that the contact area between the filling block 3 and the mounting grooves 21 is further increased, the elastic deformation of the filling block 3 can be increased, and the sealing effect is improved.
In this embodiment, as shown in fig. 1, the mounting grooves 21 are annular wedge-shaped grooves, and the two mounting grooves 21 are axially symmetrically formed along the elastic sealing block 2, and an upper wedge-shaped filling block and a lower wedge-shaped filling block 3 are adopted, so that the sealing effect and the sealing performance are improved, the reliability of the sealing structure is greatly improved, and the sealing structure can be used in a relatively complex environment. When the sealing device is installed, the elastic sealing block 2 is firstly bonded between the outer sleeve 1 and the pipeline 200 and is fixed temporarily, and then the wedge-shaped filling block 3 is pushed to the wedge-shaped groove direction of the sealing block for installation.
Alternatively, as shown in fig. 1, the elastic sealing block 2 and the filling block 3 are connected by a fastener, which improves the reliability of the connection between the filling block 3 and the elastic sealing block 2. In this embodiment, referring to fig. 2 and 3, the elastic sealing block 2 has a first connecting hole 23 axially formed at the bottom of the mounting groove 21, referring to fig. 4 and 5, the filling block 3 has a corresponding second connecting hole 31, referring to fig. 1, the bolt 41 sequentially passes through the second connecting hole 31 of the first filling block 3, the first connecting hole 23, and the second connecting hole 31 of the second filling block 3, and then is threadedly connected to the nut 42, so that the two filling blocks 3 are fixed to the elastic sealing block 2 by the bolt 41 and the nut 42.
Optionally, as shown in fig. 1 and 6, the sealing structure further includes a cover plate 5, the cover plate 5 is fixedly disposed at an end portion of the elastic sealing block 2, so that the filling block 3 is axially disposed between the cover plate 5 and the elastic sealing block 2, and the filling block 3 is compressed between the cover plate 5 and the elastic sealing block 2 by compressing the cover plate 5, so as to improve a deformation amount of the filling block 3, thereby improving a sealing effect. In this embodiment, the cover plate 5 is provided with a third connecting hole 51, the bolt 41 sequentially passes through the third connecting hole 51 of the first cover plate 5, the second connecting hole 31 of the first filling block 3, the first connecting hole 23, the second connecting hole 31 of the second filling block 3, and the third connecting hole 51 of the second cover plate 5, and then is in threaded connection with the nut 42, so that the two filling blocks 3 are respectively installed between the two cover plates 5 and the elastic sealing block 2.
Optionally, as shown in fig. 1 and 7, the sealing structure further includes an adjusting pad 6, the adjusting pad 6 is disposed between the cover plate 5 and the filling block 3, and by adding or reducing the adjusting pad, it is ensured that the pressure of the cover plate 5 on the filling block 3 is uniform, a better deformation amount is achieved, and the sealing effect is improved.
In this embodiment, the adjusting pad 6 is provided with a fourth connecting hole 61, and the bolt 41 sequentially passes through the third connecting hole 51 of the first cover plate 5, the fourth connecting hole 61 of the first adjusting pad 6, the second connecting hole 31 of the first filling block 3, the first connecting hole 23, the second connecting hole 31 of the second filling block 3, the fourth connecting hole 61 of the second adjusting pad 6, and the third connecting hole 51 of the second cover plate 5, and then is in threaded connection with the nut 42, so that each adjusting pad 6 is respectively installed between the corresponding filling block 3 and the corresponding cover plate 5. Due to the characteristics of the wedge-shaped structure, when the installation coaxiality of the pipeline 200 deviates, the depth of the two filling blocks 3 inserted into the installation grooves 21 of the elastic sealing block 2 can be adjusted, and the pressure balance of the cover plate 5 on the filling blocks 3 is ensured through the adjusting pad 6, so that the elastic deformation of the sealing blocks on the two sides is basically the same, and the sealing effect of the structure is ensured.
Optionally, the elastic sealing block 2 is provided with a plurality of first connecting holes 21 at even intervals along the circumferential direction, the filling block 3 is provided with a plurality of second connecting holes 31 at even intervals along the circumferential direction, the cover plate 5 is provided with a plurality of third connecting holes 51 at even intervals along the circumferential direction, the adjusting pad 6 is provided with a plurality of fourth connecting holes 61 at even intervals along the circumferential direction, and the first connecting holes 21, the second connecting holes 31, the third connecting holes 51 and the fourth connecting holes 61 are respectively arranged in a one-to-one correspondence manner, so that the connection reliability is improved.
In this embodiment, the side wall of the elastic sealing block 2 is provided with an opening 24, and the elastic sealing block 2 can be opened along the opening 24 when the elastic sealing block 2 needs to be opened, for example, when the elastic sealing block 2 needs to be detached, the elastic sealing block 2 can be opened along the opening 24 so as to be detached from the pipeline 200, and the two split sealing blocks are adhered by glue before being mounted to form the elastic sealing block 2, so as to realize sealing; further specifically, the elastic sealing block 2 comprises two separate sealing blocks. More specifically, the filling block 3, the cover plate 5 and the adjusting pad 6 are all of a split structure.
The present embodiment further provides a ship, which includes a wall plate 100, a pipe 200 penetrating the wall plate 100, and a sealing structure between the pipe and the wall plate. The elastic deformation of the elastic sealing block 2 is utilized, and the sealing block is extruded to seal the pipeline 200 and the outer sleeve 1, so that the structure is simple and the installation is convenient; when the installation coaxiality deviation occurs between the pipeline 200 and the wall plate 100, the sealing structure has better adaptability to the installation precision, and the construction difficulty is reduced because the coaxiality requirement for the installation of the pipeline 200 is reduced. When axial and radial deformation that arouses, elastic seal block 2 can be along with pipeline 200 because the elastic action of self is out of shape because expend with heat and contract with cold deformation, and this seal structure has better adaptability to service environment, has improved the safety in utilization.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a seal structure between pipeline and wallboard, has seted up the mounting hole on wallboard (100), and pipeline (200) are worn to locate the mounting hole, its characterized in that includes:
the outer sleeve (1) penetrates through the mounting hole, and the outer side wall of the outer sleeve (1) is connected with the wall plate (100) in a sealing manner;
the elastic sealing block (2) is arranged on the outer sleeve (1) in a penetrating mode, a through hole (22) is formed in the elastic sealing block (2), the pipeline (200) is arranged in the through hole (22) in a penetrating mode, the inner hole wall of the through hole (22) abuts against the outer side wall of the pipeline (200), the outer side wall of the elastic sealing block (2) abuts against the inner side wall of the outer sleeve (1), an installation groove (21) is formed in the elastic sealing block (2) in the axial direction, the installation groove (21) is a wedge-shaped groove, and the notch of the installation groove (21) is larger than the groove bottom;
the filling block (3) is filled in the mounting groove (21), the filling block (3) is a wedge-shaped block matched with the wedge-shaped groove, and the filling block (3) is in interference fit with the mounting groove (21), so that the elastic sealing block (2) is extruded between the outer sleeve (1) and the pipeline (200);
the cover plate (5) is fixedly arranged at the end part of the elastic sealing block (2), so that the filling block (3) is axially arranged between the cover plate (5) and the elastic sealing block (2);
the adjusting cushions (6) are arranged between the cover plate (5) and the filling block (3), and the number of the adjusting cushions (6) can be increased or reduced;
two opposite mounting grooves (21) are formed in the elastic sealing block (2), and the filling blocks (3) are respectively mounted on the two mounting grooves (21).
2. A sealing arrangement between a pipe and a wall plate according to claim 1, characterised in that the mounting groove (21) is an annular groove and the filling block (3) is an annular block.
3. Sealing structure between a pipe and a wall panel according to claim 1, characterized in that the elastic sealing block (2) and the filling block (3) are connected by means of fasteners.
4. A seal between a pipe and a wall plate according to any of claims 1-3, characterized in that the elastic sealing block (2) is a rubber block.
5. A sealing arrangement between a pipe and a wall plate according to any of claims 1-3, characterised in that the outer casing (1) is a steel pipe, which is sealed to the wall plate (100) by welding.
6. A ship, comprising a wall (100), a pipe (200) inserted through the wall (100), and a sealing structure between the pipe and the wall according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713024.1A CN113236869B (en) | 2021-06-25 | 2021-06-25 | Sealing structure between pipeline and wall plate and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713024.1A CN113236869B (en) | 2021-06-25 | 2021-06-25 | Sealing structure between pipeline and wall plate and ship |
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| Publication Number | Publication Date |
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| CN113236869A CN113236869A (en) | 2021-08-10 |
| CN113236869B true CN113236869B (en) | 2023-04-18 |
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| CN202110713024.1A Active CN113236869B (en) | 2021-06-25 | 2021-06-25 | Sealing structure between pipeline and wall plate and ship |
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| CN115163934A (en) * | 2022-05-09 | 2022-10-11 | 中国船舶重工集团公司第七一九研究所 | Pipeline cabin penetrating device for ship and ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201666413U (en) * | 2009-11-30 | 2010-12-08 | 比亚迪股份有限公司 | Waterproof wiring sleeve |
| CN201902553U (en) * | 2010-12-31 | 2011-07-20 | 陈元朋 | Ring-shaped elastic washer for mine gas pump drainage hole packer |
| JP6133246B2 (en) * | 2014-08-19 | 2017-05-24 | 古河電気工業株式会社 | Structure for fixing wall penetrating member to wall and method for constructing structure for fixing wall penetrating member to wall |
| CN207906615U (en) * | 2017-01-24 | 2018-09-25 | 黄良帅 | A kind of flexible cable plugging device |
| CN207514398U (en) * | 2017-11-09 | 2018-06-19 | 宁波市宇华电器有限公司 | A kind of wall pipe structure |
| CN209370616U (en) * | 2018-11-29 | 2019-09-10 | 广西壮族自治区城乡规划设计院 | A kind of water string convenient for safeguarding |
| CN210531778U (en) * | 2019-06-10 | 2020-05-15 | 王福州 | Sealing device for inspection well of heat distribution pipeline |
| CN210739583U (en) * | 2019-11-09 | 2020-06-12 | 华能瑞金发电有限责任公司 | Oil seepage prevention structure matched with thermal resistance temperature element for use |
| CN212564764U (en) * | 2020-06-29 | 2021-02-19 | 湖北万源安邦防水保温有限公司 | Novel waterproof structure of wall-penetrating pipeline |
| CN213452142U (en) * | 2020-08-26 | 2021-06-15 | 浙江信宇建设集团有限公司 | Water leakage prevention structure for reserved hole of toilet |
| CN112963626B (en) * | 2021-01-29 | 2022-11-15 | 广船国际有限公司 | Sealing structure of pipeline and ship |
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