CN114673840B - High-pressure sealing joint and connecting method thereof - Google Patents
High-pressure sealing joint and connecting method thereof Download PDFInfo
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- CN114673840B CN114673840B CN202210175348.9A CN202210175348A CN114673840B CN 114673840 B CN114673840 B CN 114673840B CN 202210175348 A CN202210175348 A CN 202210175348A CN 114673840 B CN114673840 B CN 114673840B
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- ring
- connector
- round platform
- sealing
- buckle
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Classifications
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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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/022—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings used with sleeves or nipples for pipes of the same diameter, or with reduction pieces
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention belongs to the technical field of sealing joints, in particular to a high-pressure sealing joint and a connecting method thereof. The sealing assembly ensures the tightness of the connecting part, realizes stable connection of the connecting part of the pipe body by utilizing the mutual matching of the anti-falling assembly and the connecting sleeve, has simple structure, convenient installation and operation, low requirement on operators, convenient realization of quick connection of the pipe body and high efficiency of pipe body connection.
Description
Technical Field
The invention relates to the technical field of sealing joints, in particular to a high-pressure sealing joint and a connecting method thereof.
Background
In plant machinery, the joints of most pipe bodies are poor in tightness or troublesome to assemble, so that the equipment is time-consuming and labor-consuming to assemble, the joints are poor in tightness or liquid is leaked, and the problem is more serious when the surrounding environment is polluted, especially when the high-pressure internal medium is faced.
The existing pipe body sealing connector is usually connected by adopting butt welding or welding a flange, and then is connected through the flange, and besides adopting butt welding or welding the flange, the existing pipe body sealing connector can also be connected by adopting a clamping sleeve and the like.
However, the welding mode has higher requirements on site operators and equipment, complex working procedures, high construction difficulty and long construction period, and the cutting ferrule connection has extremely strict requirements on the size and the finish of the steel pipe and has extremely high cost.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a high-pressure sealing joint and a connecting method thereof, which solve the problems of complicated installation operation and lower installation efficiency of the traditional pipe body sealing joint.
(II) technical scheme
The invention adopts the following technical scheme for realizing the purposes:
the utility model provides a high-pressure sealing joint, includes sealing component, anticreep subassembly and adapter sleeve, anticreep subassembly is including the first round platform ring and the second round platform ring that mutually support and set up, and anticreep subassembly cover is established in sealing component's outside to anticreep subassembly's outside cover is equipped with the adapter sleeve, sealing component is including the first sealing washer and the second sealing washer of mutually supporting grafting to and the cover is established the go-between in the first sealing washer and the second sealing washer outside, the adapter sleeve is including mutually supporting complex first connector and second connector, and all overlaps on first connector and the second connector and be equipped with the anticreep ring.
Further, the outside integral type of first sealing washer is provided with first epitaxial plate, the outside integral type of second sealing washer is provided with the second epitaxial plate, and all sets up flutedly on the lateral wall of first epitaxial plate and second epitaxial plate to the integral type is provided with the outer cam with recess complex on the hookup ring inside wall, the first sealing washer of first epitaxial plate lower part is the round platform shape of inversion, and the first sealing washer on first epitaxial plate upper portion sets up with the inner wall cooperation of body, and the inner wall laminating of second sealing washer is contradicted in the round platform shape position department of first sealing washer lower part.
Further, the first round platform ring and the second round platform ring are all threaded connection on the thread groove of body end position department, and the grafting groove has been seted up to one side that first round platform ring is close to the second round platform ring to the integral type is provided with the grafting ring of grafting connection with the grafting groove on the second round platform ring, first round platform ring and second round platform ring all are the round platform shape, and the one end external diameter that first round platform ring and second round platform ring are close to each other is greater than the external diameter that the two kept away from one end each other.
Further, one side integral type that first connector is close to the second connector is provided with first buckle, and the second connector is close to the prediction integral type of first connector and is provided with the second buckle to the mounting groove of cooperation anticreep ring has all been seted up on first connector and the second connector, set up the first catching groove of cooperation second buckle on the outer wall of first connector, and second buckle and first catching groove joint are connected, set up the second catching groove of cooperation first buckle on the outer wall of second connector, and first buckle and second catching groove joint are connected.
Further, a method for connecting a high-pressure sealing joint comprises the following steps:
s1, firstly, sleeving anti-drop rings on two pipe bodies to be connected, and then sleeving a first connector and a second connector respectively;
s2, respectively and threadedly connecting the first round platform ring and the second round platform ring to thread grooves at the end parts of the two pipes to be connected together;
s3, then, the first sealing ring is arranged at the end part of one pipe body, and the second sealing ring is arranged at the end part of the other pipe body;
s4, butt-jointing the ends of the two pipe bodies together, inserting the first sealing ring into the second sealing ring, abutting the first epitaxial plate and the second epitaxial plate together, and sleeving the connecting ring on the outer sides of the first epitaxial plate and the second epitaxial plate;
and S5, finally, moving the first connecting head and the second connecting head to be close to each other on the two butted pipe bodies, enabling the first buckle to be clamped into the second buckle groove, enabling the second buckle to be clamped into the first buckle groove, then sleeving the anti-drop ring on the first connecting head and the second connecting head, further completing stable connection between the first connecting head and the second connecting head, tightly propping the first round platform ring by using the first connecting head and the second connecting head and tightly propping the second round platform ring, and stably connecting the end positions of the two pipe bodies together.
(III) beneficial effects
Compared with the prior art, the invention provides the high-pressure sealing joint and the connecting method thereof, which have the following beneficial effects:
according to the invention, the first sealing ring and the second sealing ring are connected together in a plugging manner through the arranged sealing assembly, and are arranged at the connecting position of the two pipe body ends, so that the sealing connection of the positions is realized, the tightness of the connection of the pipe bodies is ensured, the leakage of the pipe bodies in the using process is effectively avoided, the arrangement of the connecting rings is convenient for improving the tightness of the connecting position between the two pipe bodies, the sealing effect of the connecting position of the pipe bodies is further enhanced, the stable use of the pipe bodies is ensured, meanwhile, the stable limit of the connecting position of the pipe bodies is realized by the mutual matching of the anti-falling assembly and the connecting sleeve, the stable connection of the two pipe bodies is ensured, the falling-off during the subsequent use is effectively prevented, the stability of the connection is improved, the whole sealing connector has a simple structure, the installation operation is convenient, the requirement on operators is low, the quick connection of the pipe bodies is convenient, and the efficiency of the pipe body connection is high.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a cross-sectional view of a seal assembly of the present invention;
FIG. 3 is a schematic view of a seal assembly according to the present invention;
FIG. 4 is a schematic view of the structure of the anti-drop assembly according to the present invention;
FIG. 5 is a schematic view of a connecting sleeve according to the present invention;
FIG. 6 is a schematic view of the present invention in use.
In the figure: 1. a tube body; 101. a thread groove; 2. a seal assembly; 201. a first seal ring; 2011. a first epitaxial plate; 202. a second seal ring; 2021. a second epitaxial plate; 203. a connecting ring; 3. an anti-drop assembly; 301. a first round table ring; 3011. a plug-in groove; 302. a second round table ring; 3021. a plug ring; 4. connecting sleeves; 401. a first connector; 4011. a first buckle; 4012. a first buckling groove; 402. a second connector; 4021. a second buckle; 4022. a second buckling groove; 403. and (5) preventing the ring from falling off.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1 and 6, one embodiment of the present invention proposes: the utility model provides a high-pressure sealing joint, including sealing component 2, anticreep subassembly 3 and adapter sleeve 4, anticreep subassembly 3 includes first round platform ring 301 and the second round platform ring 302 that mutually support and set up, the setting of first round platform ring 301 and second round platform ring 302 is convenient for overlap in body 1 end position department, can prevent two bodies 1 after connecting after body 1 and drop, anticreep subassembly 3 and adapter sleeve 4 are together cooperated simultaneously, can be with the stable connection of end position of two bodies 1 together, effectually prevent to drop when later using, and anticreep subassembly 3 cover is established in sealing component 2's outside, and anticreep subassembly 3's outside cover is equipped with adapter sleeve 4, sealing component 2 includes first sealing washer 201 and second sealing washer 202 that mutually support and peg graft, first sealing washer 201 and second sealing washer 202's setting are convenient for peg graft and are connected together, the connecting sleeve 4 is arranged at the connecting position of the ends of the two pipe bodies 1 to realize the sealing connection of the positions, ensure the tightness of the connection between the pipe bodies 1, effectively avoid the leakage and the like of the pipe bodies 1 in the use process, and the connecting ring 203 sleeved outside the first sealing ring 201 and the second sealing ring 202, the arrangement of the connecting ring 203 is convenient for improving the tightness of the connecting position between the two, further strengthen the sealing effect of the connecting position of the pipe bodies 1 and ensure the stable use later, the connecting sleeve 4 comprises a first connecting head 401 and a second connecting head 402 which are mutually inserted and matched, the first connecting head 401 and the second connecting head 402 are respectively sleeved with an anti-falling ring 403, the inner walls of the first connecting head 401 and the second connecting head 402 are mutually matched and connected together and respectively abut against the outer walls of the first round table ring 301 and the second round table ring 302 to effectively and stably limit the first round table ring 301 and the second round table ring 302, therefore, stable limit of the connecting part of the pipe body 1 is realized by utilizing mutual matching of the anti-falling assembly 3 and the connecting sleeve 4, and stable connection of the two pipe bodies 1 is ensured, wherein the arrangement of the anti-falling ring 403 can effectively avoid the mutual falling and separation of the first connecting head 401 and the second connecting head 402 in the use process, and the stability of connection is improved.
As shown in fig. 1, fig. 2 and fig. 3, in some embodiments, the outside integral type of first sealing washer 201 is provided with first epitaxial plate 2011, the setting of first epitaxial plate 2011 is convenient for carry out auxiliary positioning to it when first sealing washer 201 installs, can realize the quick effectual installation of first sealing washer 201, the outside integral type of second sealing washer 202 is provided with second epitaxial plate 2021, the setting of second epitaxial plate 2021 is convenient for carry out auxiliary positioning to it when second sealing washer 202 installs, can realize the quick effectual installation of second sealing washer 202, and all set up flutedly on the lateral wall of first epitaxial plate 2011 and second epitaxial plate 2021, and be provided with the evagination strip with recess complex on the hookup ring 203 inside wall, the setting of recess and evagination strip is convenient for connecting together with first epitaxial plate 2011 stable effectual connection, the first sealing washer 201 of first epitaxial plate 2011 lower part is the inversion shape, and the first sealing washer 201 of first epitaxial plate 2011 upper portion is convenient for carry out the installation of second sealing washer 202 towards the mutual contact between the two seal ring parts of the two seal ring parts, the two is located at the contact joint between the two seal ring parts of the two seal rings 201.
As shown in fig. 1 and fig. 4, in some embodiments, the first circular truncated cone ring 301 and the second circular truncated cone ring 302 are both in threaded connection with the threaded groove 101 at the end position of the pipe body 1, the threaded connection mode is convenient to connect the anti-drop assembly 3 on the pipe body 1 quickly, and the installation operation is simple and convenient, the operation is convenient, the inserting groove 3011 is formed in one side, close to the second circular truncated cone ring 302, of the first circular truncated cone ring 301, the inserting groove 3011 is integrally formed in the second circular truncated cone ring 302, the inserting groove 3011 and the inserting ring 3021 are mutually matched, the gap between the first circular truncated cone ring 301 and the second circular truncated cone ring 302 is conveniently blocked after the pipe body 1 is connected, the damage of the sealing assembly 2 inside the pipe body can be effectively avoided, the stability of the sealing assembly 2 is improved, the first circular truncated cone ring 301 and the second circular truncated cone ring 302 are both shaped, the outer diameter of one end, close to each other, of the first circular truncated cone ring 301 and the second circular truncated cone ring 302, is larger than the outer diameter of one end, far away from each other, of the first circular truncated cone ring 301 and the second circular truncated cone ring 302, the inserting ring 3021 and the inserting ring 3021 are mutually matched with the anti-drop assembly 3, and the joint position of the pipe body is better matched, and the joint position of the anti-drop assembly 1 is improved.
As shown in fig. 1 and 5, in some embodiments, a first buckle 4011 is integrally disposed on one side of the first connector 401, which is close to the second connector 402, a second buckle 4021 is integrally disposed on the other side of the second connector 402, and the first connector 401 and the second connector 402 are provided with mounting grooves for engaging with the anti-slip ring 403, a first buckle 4012 for engaging with the second buckle 4021 is disposed on an outer wall of the first connector 401, the second buckle 4021 is connected with the first buckle 4012 in a clamping manner, a second buckle 4022 for engaging with the first buckle 4011 is disposed on an outer wall of the second connector 402, the first buckle 4011 is connected with the second buckle 4022 in a clamping manner, the first buckle 4011 is disposed so as to engage with the second buckle 4022, and the second buckle 4021 is disposed so as to engage with the first buckle 4012, thereby stably connecting the first connector 401 and the second connector 402 together.
A method of connecting a high pressure seal joint comprising the steps of:
s1, firstly, sleeving an anti-falling ring 403 on two pipe bodies 1 to be connected, and then sleeving a first connector 401 and a second connector 402 respectively;
s2, respectively screwing the first circular truncated cone ring 301 and the second circular truncated cone ring 302 onto the thread grooves 101 at the end parts of the two pipe bodies 1 to be connected together;
s3, then, the first sealing ring 201 is arranged at the end part of one pipe body 1, and the second sealing ring 202 is arranged at the end part of the other pipe body 1;
s4, the ends of the two pipe bodies 1 are butt-jointed together, at the moment, the first sealing ring 201 is inserted into the second sealing ring 202, the first epitaxial plate 2011 and the second epitaxial plate 2021 are abutted together, and the connecting ring 203 is sleeved on the outer sides of the first epitaxial plate 2011 and the second epitaxial plate 2021;
and S5, finally, moving the first connector 401 and the second connector 402 on the two butted pipe bodies 1 to be close to each other, enabling the first buckle 4011 to be clamped into the second buckle groove 4022, enabling the second buckle 4021 to be clamped into the first buckle groove 4012, sleeving the anti-falling ring 403 on the first connector 401 and the second connector 402, and further completing stable connection between the first connector 401 and the second connector 402, and tightly propping the first circular truncated cone ring 301 and the second connector 402 against the second circular truncated cone ring 302 by utilizing the first connector 401, so that the end positions of the two pipe bodies 1 are stably connected together.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a high-pressure sealing joint, includes sealing component (2), anticreep subassembly (3) and adapter sleeve (4), its characterized in that: the anti-drop assembly (3) comprises a first round platform ring (301) and a second round platform ring (302) which are mutually matched, the anti-drop assembly (3) is sleeved outside the sealing assembly (2), a connecting sleeve (4) is sleeved outside the anti-drop assembly (3), the first round platform ring (301) and the second round platform ring (302) are both in threaded connection with a threaded groove (101) at the end part of the pipe body (1), a plugging groove (3011) is formed in one side, close to the second round platform ring (302), of the first round platform ring (301), a plugging ring (3021) which is in plug connection with the plugging groove (3011) is integrally arranged on the second round platform ring (302), the sealing assembly (2) comprises a first sealing ring (201) and a second sealing ring (202) which are mutually matched and plugged, a connecting ring (203) which is sleeved outside the first sealing ring (201) and the second sealing ring (202), a first epitaxial plate (2011) is integrally arranged on the outer side of the first sealing ring (201), a second epitaxial plate (2011) is integrally arranged on one side of the second round platform ring (202), an epitaxial plate (2011) is integrally connected with the second epitaxial plate (2011) and is provided with an inner side wall (2011), the connecting sleeve (4) comprises a first connector (401) and a second connector (402) which are matched in an inserting mode, an anti-drop ring (403) is sleeved on the first connector (401) and the second connector (402), a first buckle (4011) is integrally arranged on one side, close to the second connector (402), of the first connector (401), a second buckle (4021) is integrally arranged on one side, close to the first connector (401), of the second connector (402), a placement groove matched with the anti-drop ring (403) is formed in the first connector (401) and the second connector (402), a first buckle groove (4012) matched with the second buckle (4021) is formed in the outer wall of the first connector (401), the second buckle (4021) is connected with the first buckle groove (4012) in a clamping mode, and a second buckle groove (4022) matched with the first buckle (4011) is formed in the outer wall of the second connector (402) in a clamping mode.
2. A high pressure seal joint as claimed in claim 1, wherein: the first sealing ring (201) at the lower part of the first epitaxial plate (2011) is in an inverted truncated cone shape, the first sealing ring (201) at the upper part of the first epitaxial plate (2011) is matched with the inner wall of the pipe body (1), and the inner wall of the second sealing ring (202) is attached to and abutted against the truncated cone-shaped part at the lower part of the first sealing ring (201).
3. A high pressure seal joint as claimed in claim 2, wherein: the first round platform ring (301) and the second round platform ring (302) are both round platform-shaped, and the outer diameter of one end, close to each other, of the first round platform ring (301) and the second round platform ring (302) is larger than the outer diameter of one end, far away from each other, of the first round platform ring and the second round platform ring (302).
4. A method of connecting a high pressure sealing joint according to any one of claims 1 to 3, comprising the steps of:
s1, firstly, sleeving anti-falling rings (403) on two pipe bodies (1) to be connected, and then sleeving a first connector (401) and a second connector (402) respectively;
s2, respectively and threadedly connecting the first circular truncated cone ring (301) and the second circular truncated cone ring (302) to thread grooves (101) at the end parts of two pipe bodies (1) to be connected together;
s3, then, the first sealing ring (201) is arranged at the end part of one pipe body (1), and the second sealing ring (202) is arranged at the end part of the other pipe body (1);
s4, butt-jointing the ends of the two pipe bodies (1) together, inserting a first sealing ring (201) into a second sealing ring (202), abutting the first epitaxial plate (2011) and the second epitaxial plate (2021), and sleeving the connecting ring (203) on the outer sides of the first epitaxial plate (2011) and the second epitaxial plate (2021);
s5, finally, the first connector (401) and the second connector (402) are moved on the two butted pipe bodies (1) to be close to each other, so that the first buckle (4011) is clamped into the second buckle groove (4022), the second buckle (4021) is clamped into the first buckle groove (4012), then the anti-dropping ring (403) is sleeved on the first connector (401) and the second connector (402), stable connection between the first connector (401) and the second connector (402) is further completed, the first connector (401) is tightly abutted against the first circular truncated cone ring (301) and the second connector (402) is tightly abutted against the second circular truncated cone ring (302), and therefore the end positions of the two pipe bodies (1) are stably connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210175348.9A CN114673840B (en) | 2022-02-25 | 2022-02-25 | High-pressure sealing joint and connecting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210175348.9A CN114673840B (en) | 2022-02-25 | 2022-02-25 | High-pressure sealing joint and connecting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114673840A CN114673840A (en) | 2022-06-28 |
| CN114673840B true CN114673840B (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210175348.9A Active CN114673840B (en) | 2022-02-25 | 2022-02-25 | High-pressure sealing joint and connecting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114673840B (en) |
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| JP2002031282A (en) * | 2000-07-11 | 2002-01-31 | Higashio Mech Co Ltd | Pipe joint |
| JP2011185443A (en) * | 2004-09-21 | 2011-09-22 | Hitachi Metals Ltd | Insertion type joint |
| CN202040457U (en) * | 2010-12-23 | 2011-11-16 | 拉卡萨安吉拉股份有限公司 | Pipe joint bushing and pipe joint using same |
| CN206723646U (en) * | 2017-03-01 | 2017-12-08 | 日丰企业（佛山）有限公司 | Pipe joint |
| CN207961805U (en) * | 2018-02-08 | 2018-10-12 | 玉环市双友铜业有限公司 | A kind of side seal face type corrugated pipe connector |
| CN210978851U (en) * | 2019-08-30 | 2020-07-10 | 康命源（贵州）科技发展有限公司 | Direct insertion type pipe connecting device for connecting adjacent pipes |
| CN211693882U (en) * | 2019-11-04 | 2020-10-16 | 康命源（贵州）科技发展有限公司 | Pipe assembly with novel anti-falling sealing structure |
| CN112963641A (en) * | 2021-03-15 | 2021-06-15 | 安徽宝立华机械设备有限公司 | Twistable hydraulic hose joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190137016A1 (en) * | 2017-11-08 | 2019-05-09 | Shanghai Sansheng Metal Products. Co. Ltd. | Connecting union joint with smart connection of easy-flowing pipe system |
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2022
- 2022-02-25 CN CN202210175348.9A patent/CN114673840B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031282A (en) * | 2000-07-11 | 2002-01-31 | Higashio Mech Co Ltd | Pipe joint |
| JP2011185443A (en) * | 2004-09-21 | 2011-09-22 | Hitachi Metals Ltd | Insertion type joint |
| CN202040457U (en) * | 2010-12-23 | 2011-11-16 | 拉卡萨安吉拉股份有限公司 | Pipe joint bushing and pipe joint using same |
| CN206723646U (en) * | 2017-03-01 | 2017-12-08 | 日丰企业（佛山）有限公司 | Pipe joint |
| CN207961805U (en) * | 2018-02-08 | 2018-10-12 | 玉环市双友铜业有限公司 | A kind of side seal face type corrugated pipe connector |
| CN210978851U (en) * | 2019-08-30 | 2020-07-10 | 康命源（贵州）科技发展有限公司 | Direct insertion type pipe connecting device for connecting adjacent pipes |
| CN211693882U (en) * | 2019-11-04 | 2020-10-16 | 康命源（贵州）科技发展有限公司 | Pipe assembly with novel anti-falling sealing structure |
| CN112963641A (en) * | 2021-03-15 | 2021-06-15 | 安徽宝立华机械设备有限公司 | Twistable hydraulic hose joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114673840A (en) | 2022-06-28 |
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