CN210510622U - Corrugated pipe assembly with sealing connection structure - Google Patents
Corrugated pipe assembly with sealing connection structure Download PDFInfo
- Publication number
- CN210510622U CN210510622U CN201921281721.9U CN201921281721U CN210510622U CN 210510622 U CN210510622 U CN 210510622U CN 201921281721 U CN201921281721 U CN 201921281721U CN 210510622 U CN210510622 U CN 210510622U
- Authority
- CN
- China
- Prior art keywords
- section
- limiting
- socket
- clamping
- disc body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model relates to a bellows subassembly with sealing connection structure, including two sections bellows that mutually support and connect, at least one port is equipped with the socket section on one of them section bellows, and at least one port is equipped with the socket section on another section bellows. The corrugated pipe assembly is reasonable in structure, convenient to install two sections of corrugated pipes, long in service life and good in sealing performance. The flanges are sleeved at the socket end and the socket end of the two sections of corrugated pipes respectively, then are butted, the positions of the flanges are aligned, and then are fixed by bolts, the two sections of corrugated pipes are installed and fastened, and the installation is very convenient. The preparation is convenient, and the preparation can be carried out without additional complex equipment.
Description
Technical Field
The utility model relates to a pipeline sealing field is very much for having the bellows subassembly of sealing connection structure.
Background
The metal corrugated pipe is used as a sensitive component, a damping component, a compensation component, a sealing component, a valve component and a pipeline connecting piece, and is widely applied to the fields of automatic control and measuring instruments, vacuum technology, mechanical industry, electric power industry, transportation, atomic energy industry and the like. The existing metal corrugated pipe connection mode comprises flange connection, welding, screw thread connection and quick connector connection, wherein a small-caliber metal hose is generally connected with the quick connector through screw threads, and a large caliber is generally connected with the flange and welded.
During welding, the welding device easily causes uneven welding and melting, poor sealing performance, complex structure, inconvenient installation, high construction cost and defective rate, and influences the tensile force contractibility of the corrugated pipe and the service life of the corrugated pipe.
Therefore, a bellows assembly with reasonable structure, convenient installation, long service life and good sealing performance is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bellows subassembly with sealing connection structure, this bellows subassembly is rational in infrastructure, connection simple to operate between the bellows is swift, long service life and leakproofness are good.
The utility model discloses a following technical scheme realizes:
a corrugated pipe assembly with a sealing connection structure comprises two sections of corrugated pipes which are mutually matched and connected, wherein at least one port on one section of corrugated pipe is provided with a socket section, at least one port on the other section of corrugated pipe is provided with a socket section,
the socket section is provided with an inserting section, a first limiting section and a first clamping section which are used for being inserted into the socket section in sequence from the port to the port at the other side in the extending direction,
the socket section is provided with a support section, a second limit section and a second clamping section in sequence from the port to the port on the other side in the extending direction,
the corrugated pipe assembly with the sealing connection structure also comprises a first flange clamped on the first clamping section, a second flange clamped on the second clamping section and a bolt assembly connected between the first flange and the second flange,
the first flange comprises a first annular disc body, the inner peripheral wall of the first annular disc body can penetrate through the insertion section and the first limiting section of the insertion section and then enter the first clamping section, and the inner peripheral wall of the first annular disc body is provided with first clamping bulges which can be buckled on the side wall of the first limiting bulge on one side, far away from the insertion section, of the first limiting bulge after entering the first clamping section and rotating;
the second limiting section of the socket section is provided with more than 1 section of second limiting bulges at intervals along the circumferential direction of the socket section; the second flange includes the annular disk body of second, the annular disk body of second in the inner peripheral wall can pass and hold section, the spacing section of second back entering second joint section of holding of socket section to be equipped with on the annular disk body of second internal peripheral wall and to put and keep away from the second joint arch on holding section one side lateral wall at the spacing arch of second after getting into second joint section and rotatory.
When the clamping device is used, the first flange plate and the second flange plate are respectively clamped and buckled on the first clamping section and the second clamping section and then fixed.
Furthermore, the number of the first limiting bulges of the socket section is more than two sections, and a first gap is formed between every two adjacent sections of the first limiting bulges;
the inner peripheral wall of the first annular disc body is sequentially provided with more than 2 second notches which respectively correspond to the first limiting bulges at intervals along the circumferential direction, and the first clamping bulges are formed between every two adjacent second notches; the inner peripheral diameter of each first clamping bulge of the first annular disc body is larger than or equal to the outer peripheral diameter of the socket section at the corresponding first notch, and the radian of each first clamping bulge in the circumferential direction is smaller than or equal to the radian of the corresponding first notch in the circumferential direction; the inner peripheral diameter of the first annular disc body at each second notch is larger than or equal to the outer peripheral diameter of the socket section at the corresponding first limiting bulge, and the radian of each second notch in the circumferential direction is larger than or equal to the radian of the corresponding first limiting bulge in the circumferential direction; the outer peripheral diameter of the socket section at the inserting section is smaller than or equal to the inner peripheral diameter of the socket section and the inner peripheral diameter of the first annular disc body at the first clamping bulge; the outer circumference diameter of the socket section at the first clamping section is smaller than or equal to the inner circumference diameter of the first annular disc body at the first clamping bulge;
the number of the second limiting bulges of the socket section is more than two sections, and a third gap is formed between every two adjacent sections of the second limiting bulges;
more than 2 fourth notches which respectively correspond to the second limiting bulges are sequentially arranged on the inner peripheral wall of the second annular disc body at equal intervals along the circumferential direction, and second clamping bulges are formed between every two adjacent fourth notches; the inner peripheral diameter of the second annular disc body at each fourth notch is greater than or equal to the outer peripheral diameter of the socket section at the corresponding second limiting bulge, and the radian of each fourth notch in the circumferential direction is greater than or equal to the radian of the corresponding second limiting bulge in the circumferential direction; the inner peripheral diameter of each second clamping bulge of the second annular disc body is larger than or equal to the outer peripheral diameter of the socket section at the corresponding third notch, and the radian of each second clamping bulge in the circumferential direction is smaller than or equal to the radian of the corresponding third notch in the circumferential direction; the outer circumference diameters of the socket section at the abutting section and the second clamping section are smaller than or equal to the inner circumference diameter of the second annular disc body at the second clamping bulge.
The principle and the using method of the scheme are as follows: during the use, with the protruding first spacing arch of first joint of first flange through first spacing section card to first joint section, with the protruding second joint of second flange through the spacing section of second to the second joint section of facing to the spacing arch of second, then with two sections bellows butt joints, rotatory first flange and second flange after that makes first spacing arch laminate with first joint arch mutually, the spacing arch of second with the protruding laminating mutually of second joint, then fix first flange and second flange with bolt assembly, obtain.
Further, to increase the sealing: the socket section inner wall on be equipped with an annular groove along the circumferencial direction, the annular groove inner ring be equipped with a sealing washer, the internal perisporium of sealing washer with the periphery tight fit setting of the section of inserting of socket section.
Further, in order to make the sealing effect better, the sealing ring does not shift: the annular groove is positioned on the inner wall of the second limiting section of the socket section, the inner side wall of the second limiting bulge of the second limiting section is provided with a limiting groove, the limiting groove is communicated with the annular groove,
the sealing ring comprises a sealing ring body and more than 2 second protrusions arranged around the periphery of the sealing ring body, and the number, shape, size and position of the second protrusions are matched with the limiting grooves in the second limiting section of the socket section.
Further, to increase stability: more than 2 through holes I for penetrating the bolt component are arranged on the first notch, the second notch, the third notch and the fourth notch, more than 2 through holes II for penetrating the bolt component are arranged on the second annular disc body,
the number, shape, size and position of the first through holes and the second through holes are matched. Furthermore, the diameter of the outer periphery of the insertion section is gradually increased towards the other end of the corrugated pipe along the axial direction of the insertion end; the inner wall of the joint of the socket section and the insertion section is gradually reduced towards the other end along the axial direction of the corrugated pipe from the socket end.
Compared with the prior art, the utility model discloses following beneficial effect has: the corrugated pipe assembly is reasonable in structure, convenient to install two sections of corrugated pipes, long in service life and good in sealing performance. The flanges are sleeved at the socket end and the socket end of the two sections of corrugated pipes respectively, then are butted, the positions of the flanges are aligned, and then are fixed by bolts, the two sections of corrugated pipes are installed and fastened, and the installation is very convenient. The preparation is convenient, and the preparation can be carried out without additional complex equipment.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic sectional structure diagram of the present invention.
Fig. 3 is an enlarged schematic view of a portion a of fig. 2.
Fig. 4 is a schematic view of a three-dimensional structure of a section of corrugated pipe with a socket end according to the present invention.
Fig. 5 is a schematic structural view of the first flange.
Fig. 6 is a schematic perspective view of a section of corrugated pipe with a female end according to the present invention.
Fig. 7 is a schematic structural view of the second flange.
Fig. 8 is a perspective view of the seal ring.
Fig. 9 is a reference view of an assembled state of embodiment 1 of the present invention.
Detailed Description
The invention is further described with reference to the following detailed description and the accompanying drawings.
Example 1
As shown in fig. 1-8, a bellows assembly with a sealing connection structure comprises two bellows 1 which are connected with each other in a matching manner, wherein at least one port of one bellows 1 is provided with a socket section 1-1, at least one port of the other bellows 1 is provided with a socket section 1-2,
the socket section 1-1 is provided with an inserting section 1-1-1, a first limiting section 1-1-2 and a first clamping section 1-1-3 which are used for inserting into the socket section 1-2 in sequence from the port to the port at the other side in the extending direction,
the socket section 1-2 is provided with a support section 1-2-1, a second limit section 1-2-2 and a second clamping section 1-2-3 in sequence from the port to the port at the other side in the extending direction,
the corrugated pipe assembly with the sealing connection structure also comprises a first flange 2-1 clamped on the first clamping section 1-1-3, a second flange 2-2 clamped on the second clamping section 1-2-3 and a bolt assembly 3 connected between the first flange 2-1 and the second flange 2-2,
the first limiting section 1-1-2 of the socket section 1-1 is provided with more than 1 section of first limiting bulges 1-1-2-1 at intervals along the circumferential direction of the socket section 1-1, the first flange 2-1 comprises a first annular disc body 2-1-1, the inner peripheral wall of the first annular disc body 2-1-1 can pass through the insertion section 1-1-1 of the socket section 1-1 and the first limiting section 1-1-2 and then enter the first clamping section 1-1-3, the inner peripheral wall of the first annular disc body 2-1-1 is provided with a first clamping bulge 2-1-3 which can be buckled on the side wall of one side of the first limiting bulge 1-1-2-1 far away from the insertion section 1-1-1 after entering the first clamping section 1-1-3 and rotating;
the second limiting section 1-2-2 of the socket section 1-2 is provided with more than 1 section of second limiting bulges 1-2-2-1 at intervals along the circumferential direction of the socket section 1-2; the second flange 2-2 comprises a second annular disc body 2-2-1, the inner peripheral wall of the second annular disc body 2-2-1 can penetrate through the abutting section 1-2-1 of the socket section 1-2 and the second limiting section 1-2-2 and then enters the second clamping section 1-2-3, and a second clamping protrusion 2-2-3 which can enter the second clamping section 1-2-3 and is buckled on the side wall of one side, far away from the abutting section 1-2-1, of the second limiting protrusion 1-2-2-1 after rotating is arranged on the inner peripheral wall of the second annular disc body 2-2-1.
When the clamping device is used, the first flange plate and the second flange plate are respectively clamped into and buckled on the first clamping section 1-1-3 and the second clamping section 1-2-3 and then fixed.
Further, to increase the sealing: an annular groove 5-1 is formed in the inner wall of the socket section 1-2 in the circumferential direction, a sealing ring 6 is arranged in the annular groove 5-1 in an inner ring mode, and the inner peripheral wall of the sealing ring is in close fit with the periphery of the insertion section 1-1-1 of the socket section 1-1.
Further, in order to make the sealing effect better, the sealing ring does not shift: the annular groove 5-1 is positioned on the inner wall of the second limiting section 1-2-2 of the socket section 1-2, the inner side wall of the second limiting bulge 1-2-2-1 of the second limiting section 1-2-2 is provided with a limiting groove 5-2, the limiting groove 5-2 is communicated with the annular groove 5-1,
the sealing ring 6 comprises a sealing ring body 6-1 and more than 2 second bulges 6-2 arranged around the periphery of the sealing ring body 6-1, and the number, shape, size and position of the second bulges 6-2 are matched with the limiting grooves 5-2 arranged on the second limiting sections 1-2-2 of the socket section 1-2.
Further, to increase stability: the number of the first gap 1-1-2-2, the second gap 2-1-2, the third gap 1-2-2 and the fourth gap 2-2-2 is 3.
Furthermore, more than 2 through holes I3-1 for penetrating the bolt assemblies 3 are arranged on the first annular disc body 2-1-1, more than 2 through holes II 3-2 for penetrating the bolt assemblies 3 are arranged on the second annular disc body 2-2-1,
the number, shape, size and position of the first through holes 3-1 are matched with those of the second through holes 3-2. Further, the diameter of the outer periphery of the insertion section 1-1-1 is gradually increased from the insertion end to the other end of the corrugated pipe 1 in the axial direction; the inner wall of the joint of the socket section 1-2 and the insertion section 1-1-1 is gradually reduced towards the other end along the axial direction from the socket end to the corrugated pipe 1.
In this embodiment, the ratio is preferably equal to or greater than or equal to or slightly less than or equal to.
During assembly, as shown in fig. 9, a first clamping protrusion of a first flange faces a first limiting protrusion, the first flange is connected to a first clamping section through a first limiting section 1-1-2, a second clamping protrusion of a second flange faces a second limiting protrusion, the second flange is connected to a second clamping section through a second limiting section, then two sections of corrugated pipes are connected in a butt joint mode, the first flange and the second flange are rotated, the first limiting protrusion 1-1-2-1 is attached to the first clamping protrusion 2-1-3, the second limiting protrusion 1-2-2-1 is attached to the second clamping protrusion 2-2-3, and then the first flange and the second flange are fixed through a bolt assembly through a screw assembly.
In this embodiment, the number of the first notch 1-1-2-2, the second notch 2-1-2, the third notch 1-2-2, and the fourth notch 2-2-2 is 3 for illustration. Any number of 1 or more than 2 is acceptable.
In the present embodiment, a socket section 1-1 is disposed at one port of one section of corrugated pipe 1, and a socket section 1-2 is disposed at one port of the other section of corrugated pipe 1, which is known to those skilled in the art, and it is also possible that a socket section 1-1 is disposed at one end of one section of corrugated pipe 1, and a socket section 1-2 is disposed at the other end of the one section of corrugated pipe 1. For use, it is also possible to provide the same socket section 1-1 or socket section 1-2 at both ends of a section of corrugated tubing.
While the present invention has been shown and described with reference to particular embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be limited, except as by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a bellows subassembly with sealing connection structure which characterized in that: comprises two sections of corrugated pipes (1) which are mutually matched and connected, wherein at least one port on one section of corrugated pipe (1) is provided with a socket section (1-1), at least one port on the other section of corrugated pipe (1) is provided with a socket section (1-2),
the socket section (1-1) is sequentially provided with an inserting section (1-1-1) for inserting into the socket section (1-2), a first limiting section (1-1-2) and a first clamping section (1-1-3) from the extending direction of the port to the port on the other side,
the socket section (1-2) is sequentially provided with a supporting section (1-2-1), a second limiting section (1-2-2) and a second clamping section (1-2-3) in the extending direction from the port to the port on the other side,
the corrugated pipe assembly with the sealing connection structure also comprises a first flange (2-1) clamped on the first clamping section (1-1-3), a second flange (2-2) clamped on the second clamping section (1-2-3) and a bolt assembly (3) connected between the first flange (2-1) and the second flange (2-2),
the first limiting section (1-1-2) of the socket section (1-1) is provided with more than 1 section of first limiting bulges (1-1-2-1) at intervals along the circumferential direction of the socket section (1-1), the first flange (2-1) comprises a first annular disc body (2-1-1), the inner peripheral wall of the first annular disc body (2-1-1) can penetrate through the insertion section (1-1-1) and the first limiting section (1-1-2) of the socket section (1-1) and then enters the first clamping section (1-1-3), and the inner peripheral wall of the first annular disc body (2-1-1) is provided with a first clamping section (1-1-3) which can be buckled on the first limiting bulges (1-1-2-1) after rotating and is far away from the insertion section (1-1-1) A first clamping bulge (2-1-3) on one side wall;
the second limiting section (1-2-2) of the socket section (1-2) is provided with more than 1 section of second limiting bulges (1-2-2-1) at intervals along the circumferential direction of the socket section (1-2); the second flange (2-2) comprises a second annular disc body (2-2-1), the inner peripheral wall of the second annular disc body (2-2-1) can penetrate through the abutting section (1-2-1) of the socket section (1-2) and the second limiting section (1-2-2) and then enters the second clamping section (1-2-3), and a second clamping bulge (2-2-3) which can enter the second clamping section (1-2-3) and is buckled on the second limiting bulge (1-2-2-1) after rotating is arranged on the inner peripheral wall of the second annular disc body (2-2-1) and is far away from the side wall of one side of the abutting section (1-2-1).
2. A bellows assembly with a sealing connection as claimed in claim 1, wherein: the number of the first limiting bulges (1-1-2-1) of the socket section (1-1) is more than two, and a first gap (1-1-2-2) is formed between two adjacent sections of the first limiting bulges (1-1-2-1);
the inner peripheral wall of the first annular disc body (2-1-1) is sequentially provided with more than 2 second notches (2-1-2) at intervals along the circumferential direction, the second notches (2-1-2) correspond to the first limiting bulges (1-1-2-1), and the first clamping bulges (2-1-3) are formed between every two adjacent second notches (2-1-2); the inner peripheral diameter of the first annular disc body (2-1-1) at each first clamping protrusion (2-1-3) is larger than or equal to the outer peripheral diameter of the socket section (1-1) at the corresponding first notch (1-1-2-2), and the radian of each first clamping protrusion (2-1-3) in the circumferential direction is smaller than or equal to the radian of the corresponding first notch (1-1-2-2) in the circumferential direction; the inner peripheral diameter of the first annular disc body (2-1-1) at each second notch (2-1-2) is larger than or equal to the outer peripheral diameter of the socket section (1-1) at the corresponding first limiting bulge (1-1-2-1), and the radian of each second notch (2-1-2) in the circumferential direction is larger than or equal to the radian of the corresponding first limiting bulge (1-1-2-1) in the circumferential direction; the outer peripheral diameter of the socket section (1-1) at the inserting section (1-1-1) is smaller than or equal to the inner peripheral diameter of the socket section () and the inner peripheral diameter of the first annular disc body (2-1-1) at the first clamping protrusion (2-1-3); the outer peripheral diameter of the socket section (1-1) at the first clamping section (1-1-3) is smaller than or equal to the inner peripheral diameter of the first annular disc body (2-1-1) at the first clamping bulge (2-1-3);
the number of the second limiting bulges (1-2-2-1) of the socket section (1-2) is more than two, and a third gap (1-2-2-2) is formed between two adjacent sections of the second limiting bulges (1-2-2-1);
more than 2 fourth notches (2-2-2) respectively corresponding to the second limiting bulges (1-2-2-1) are sequentially arranged on the inner peripheral wall of the second annular disc body (2-2-1) at equal intervals along the circumferential direction, and second clamping bulges (2-2-3) are formed between every two adjacent fourth notches (2-2-2); the inner peripheral diameter of each second annular disc body (2-2-1) at each fourth notch (2-2-2) is larger than or equal to the outer peripheral diameter of each socket section (1-2) at the corresponding second limiting bulge (1-2-2-1), and the radian of each fourth notch (2-2-2) in the circumferential direction is larger than or equal to the radian of the corresponding second limiting bulge (1-2-2-1) in the circumferential direction; the inner peripheral diameter of each second clamping protrusion (2-2-3) of the second annular disc body (2-2-1) is larger than or equal to the outer peripheral diameter of the corresponding socket section (1-2) at the corresponding third notch (1-2-2-2), and the radian of each second clamping protrusion (2-2-3) in the circumferential direction is smaller than or equal to the radian of the corresponding third notch (1-2-2-2) in the circumferential direction; the outer peripheral diameters of the socket section (1-2) at the abutting section (1-2-1) and the second clamping section (1-2-3) are smaller than or equal to the inner peripheral diameter of the second annular disc body (2-2-1) at the second clamping protrusion (2-2-3).
3. A bellows assembly with a sealing connection according to claim 1 or 2, wherein:
the inner wall of the socket section (1-2) is provided with an annular groove (5-1) along the circumferential direction, the inner ring of the annular groove (5-1) is provided with a sealing ring (6), and the inner peripheral wall of the sealing ring is tightly matched with the periphery of the insertion section (1-1-1) of the socket section (1-1).
4. A bellows assembly with a sealing connection according to claim 3, wherein:
the annular groove (5-1) is positioned on the inner wall of the second limiting section (1-2-2) of the socket section (1-2), a limiting groove (5-2) is arranged on the inner side wall of the second limiting bulge (1-2-2-1) of the second limiting section (1-2-2), the limiting groove (5-2) is communicated with the annular groove (5-1), and the groove bottom depth of the limiting groove (5-2) is greater than that of the annular groove (5-1);
the sealing ring (6) comprises a sealing ring body (6-1) and more than 2 second bulges (6-2) arranged around the periphery of the sealing ring body (6-1), and the number, shape, size and position of the second bulges (6-2) are matched with the limiting grooves (5-2) arranged on the second limiting section (1-2-2) of the socket section (1-2).
5. A bellows assembly with a sealing connection as claimed in claim 2, wherein:
the number of the first gaps (1-1-2-2), the second gaps (2-1-2), the third gaps (1-2-2-2) and the fourth gaps (2-2-2) is 3.
6. A bellows assembly with a sealing connection as claimed in claim 1, wherein: the first annular disc body (2-1-1) is provided with more than 2 through holes (3-1) for penetrating the bolt components (3), the second annular disc body (2-2-1) is provided with more than 2 through holes (3-2) for penetrating the bolt components (3),
the number, shape, size and position of the first through holes (3-1) and the second through holes (3-2) are matched.
7. A bellows assembly with a sealing connection as claimed in claim 1, wherein: the peripheral diameter of the insertion section (1-1-1) is gradually increased towards the other end of the corrugated pipe (1) along the axial direction of the insertion end; the inner wall of the joint of the socket section (1-2) and the insertion section (1-1-1) is gradually reduced towards the other end along the axial direction of the socket end towards the corrugated pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921281721.9U CN210510622U (en) | 2019-08-08 | 2019-08-08 | Corrugated pipe assembly with sealing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921281721.9U CN210510622U (en) | 2019-08-08 | 2019-08-08 | Corrugated pipe assembly with sealing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210510622U true CN210510622U (en) | 2020-05-12 |
Family
ID=70588345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921281721.9U Active CN210510622U (en) | 2019-08-08 | 2019-08-08 | Corrugated pipe assembly with sealing connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210510622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677095A (en) * | 2020-06-19 | 2020-09-18 | 中建富林集团有限公司 | Construction method of drainage pipeline |
-
2019
- 2019-08-08 CN CN201921281721.9U patent/CN210510622U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677095A (en) * | 2020-06-19 | 2020-09-18 | 中建富林集团有限公司 | Construction method of drainage pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101631852B1 (en) | Flange joint connection structure | |
| AU2231695A (en) | Friction sealed coupling for pipe | |
| CN210510622U (en) | Corrugated pipe assembly with sealing connection structure | |
| US20160258560A1 (en) | Joint for high-pressure pipes and joint structure | |
| WO2014009949A1 (en) | Adjustable pipe connector | |
| CN210978851U (en) | Direct insertion type pipe connecting device for connecting adjacent pipes | |
| KR20160079880A (en) | Device for coaxially connecting two pipelines, and an arrangement for disconnecting same | |
| CN103115211B (en) | Detachable pipe connector | |
| CN215806971U (en) | Large-caliber steel-plastic composite pipeline | |
| CA2732048C (en) | Split joint restraint device with dual pipe size capability | |
| CN210687389U (en) | Internal support device of pipeline crimping connector | |
| CN213018235U (en) | Reducing connection structure of pipeline | |
| CN111520562A (en) | Flange connecting device for improving stability of composite pipe structure | |
| CN218644982U (en) | Underwater quick joint | |
| CN215488197U (en) | Connection structure of aviation pipe fitting | |
| CN210860174U (en) | Gardens waterscape pipeline slot type connecting piece | |
| US20130207387A1 (en) | Pipe Connector | |
| CN213839972U (en) | Flexible non-metal pipeline connecting joint | |
| CN214119286U (en) | Pipeline connecting structure | |
| CN103123028B (en) | A kind of can multidirectional regulate compensate pipeline three-port structure | |
| CN220851180U (en) | Pipeline assembly | |
| CN216666792U (en) | Improved pipe fitting connecting device | |
| CN112096982A (en) | Vacuum pipeline reducing adapter flange | |
| CN219120027U (en) | Steel pipe convenient to connect | |
| CN217355992U (en) | Gas drainage pipe capable of improving sealing effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bellows assembly with sealed connection structure Effective date of registration: 20220517 Granted publication date: 20200512 Pledgee: Huangshong branch of rural credit cooperative association of Pingba District, Anshun City Pledgor: KANGMINGYUAN (GUIZHOU) TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2022980005699 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220915 Granted publication date: 20200512 Pledgee: Huangshong branch of rural credit cooperative association of Pingba District, Anshun City Pledgor: KANGMINGYUAN (GUIZHOU) TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2022980005699 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bellows assembly with sealed connection structure Effective date of registration: 20230307 Granted publication date: 20200512 Pledgee: Huangshong branch of rural credit cooperative association of Pingba District, Anshun City Pledgor: KANGMINGYUAN (GUIZHOU) TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980034242 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |