CN107387916B - Pollution-free underwater single-way hydraulic joint - Google Patents
Pollution-free underwater single-way hydraulic joint Download PDFInfo
- Publication number
- CN107387916B CN107387916B CN201710776502.7A CN201710776502A CN107387916B CN 107387916 B CN107387916 B CN 107387916B CN 201710776502 A CN201710776502 A CN 201710776502A CN 107387916 B CN107387916 B CN 107387916B
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- CN
- China
- Prior art keywords
- main body
- male
- female
- head
- sliding sleeve
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- 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.)
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Classifications
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/56—Couplings of the quick-acting type for double-walled or multi-channel pipes or pipe assemblies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
The invention provides a pollution-free underwater single-way hydraulic joint, which comprises: a male head assembly and a female head assembly. The female assembly comprises a female main body, a sliding sleeve, a plug, a screwed plug, a spring and a sealing ring. The main body of the female head is provided with a main oil duct and a bypass oil duct, and the main oil duct is provided with an annular groove. And a hole is punched in the side wall of the main body of the female head, and the bypass oil duct is communicated with the annular groove. The sliding sleeve, the spring and the plug are arranged in the main oil duct. The plug is arranged in the hole on the side wall of the main body of the female head. The female assembly can independently realize sealing, and can effectively prevent the pollution of hydraulic oil to the external environment. The invention has simple and reliable structure and excellent performance.
Description
Technical Field
The invention relates to an underwater hydraulic joint, in particular to a pollution-free underwater single-way hydraulic joint.
Background
The underwater hydraulic joint is a common tool in ocean engineering and is widely applied to various underwater hydraulic and fluid pipelines. The hydraulic joint applied at the present stage mostly adopts a structure similar to a one-way valve. The processing technology is complex, and the assembly precision is high. Particularly in deep water environments, the springs within the check valve are required to provide a relatively high pre-compression force to resist the water pressure. In the working process, the springs also need to bear the power required by the butt joint, and the requirements on the springs are high.
The report that can be found in some publications to which the present invention is related at present is the technical solution disclosed in the patent document of us patent application No. WO2012163784 A1. In the technical solution disclosed in the patent document of the us patent application No. WO2012163784A1, the male head seals the oil port by adopting a combination of the sealing ring and the elastic sleeve, but the female head oil port is directly connected with the external environment, and other liquid enters during operation, so that pollution is caused, and the whole working system is adversely affected. Therefore, in order to meet the actual requirements of ocean engineering on deep water development, the requirements of ocean environmental protection, hydraulic system safety, convenient operation and the like are met, the development of deep water operation technology is promoted, and the research and development of a pollution-free underwater single-way hydraulic joint is very necessary.
Disclosure of Invention
The invention aims to provide a pollution-free underwater single-way hydraulic joint which can realize quick installation and separation under the pollution-free condition. In particular, a spring with smaller elastic rigidity is adopted. And the structure is simple, the sealing performance is reliable, the operation is convenient, the power required by the butt joint is smaller, the internal and external pressure can be born simultaneously, and the marine engineering environment is suitable.
The purpose of the invention is realized in the following way: the novel rubber head assembly comprises a male head assembly body and a female head assembly body, wherein the male head assembly body comprises a male head main body, a rubber head and a movable elastic sleeve, the rubber head is arranged at the upper end of the male head main body, a curved surface is arranged at the lower half of the male head main body, the movable elastic sleeve is sleeved on the male head main body, a male head main oil duct is arranged at the central position of the male head main body, a male head oil hole is formed in the side wall of the male head main body, the male head main oil duct is communicated with the male head oil hole, the female head assembly body comprises a female head main body, a sliding sleeve, a plug and a spring, the plug is arranged at the upper end of the female head main body, a female head main oil duct and a bypass oil duct are arranged in the female head main body, the sliding sleeve is arranged in the female head main oil duct and between the plug and the sliding sleeve, a first annular groove and a second annular groove are sequentially formed in the lower half of the female head main oil duct, a female head oil hole communicated with the first annular groove is formed in the side wall of the female head main body, the end of the female head main body is provided with a plug, and a boss matched with the elastic sleeve is also arranged in the female head main body.
The invention also includes such structural features:
1. two first grooves are formed in the male body at the upper end and the lower end of the male oil hole, and a first sealing ring and a second sealing ring are respectively arranged in the two grooves; two second grooves are respectively formed in the outer surface of the sliding sleeve, and a third sealing ring and a fourth sealing ring are respectively arranged in the two second grooves.
2. The lower end part of the male main body is provided with a joint thread and a joint sealing ring.
3. Through holes are formed in the upper end face of the sliding sleeve and the plug.
Compared with the prior art, the invention has the beneficial effects that: the invention realizes pollution-free butt joint of the underwater hydraulic joint; compared with a one-way valve structure, the invention has the advantages of small spring force and simple and compact structure. The invention has lower requirement on the spring and has practical significance on the development of the exchange tool to deep water.
The female assembly can independently realize sealing, and can effectively prevent the pollution of hydraulic oil to the external environment. Simple and reliable structure and excellent performance.
Drawings
Fig. 1 is a schematic structural view of a male assembly of the present invention.
Fig. 2 is a schematic structural view of the female assembly of the present invention.
Fig. 3 is a schematic diagram of the alignment of male and female heads according to the present invention.
Fig. 4 is a schematic diagram illustrating a docking process according to the present invention.
Fig. 5 is a schematic diagram illustrating a docking process according to the present invention.
Fig. 6 is a schematic diagram of the docking completion of the present invention.
Fig. 7 is a schematic diagram of multiple docking according to the present invention.
Fig. 8 is a schematic view of the overall structure of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Referring to fig. 1 to 8, a pollution-free underwater single-path hydraulic joint of the present invention includes: male head assembly and female head assembly. The male assembly comprises a rubber head, a male main body, an elastic sleeve and a sealing ring. The female assembly comprises a female main body, a sliding sleeve, a plug, a screwed plug, a spring and a sealing ring. The male body is provided with a curved surface. The sliding sleeve is sleeved on the male main body and slides on the curved surface. The male main body is provided with a main oil duct, and the side wall is provided with an oil hole. The front section of the male main body is provided with a threaded column, and the rubber head is fixed at the front end of the male main body through threads. The rubber head serves to cushion bumps and rough alignment that occur during docking. The main body of the female head is provided with a main oil duct and a bypass oil duct, and the main oil duct is provided with an annular groove. And a hole is punched in the side wall of the main body of the female head, and the bypass oil duct is communicated with the annular groove. The sliding sleeve, the spring and the plug are arranged in the main oil duct, and the plug is arranged in a hole on the side wall of the main body of the female head. The female assembly can be sealed independently. A sealing ring is arranged on the sliding sleeve to realize the sealing of the ring groove on the main body of the female head; the sliding sleeve is provided with a through hole, water can flow out of the hole, so that the internal and external water pressure is balanced, and the spring is ensured to only provide small spring force. The spring limits the sliding sleeve at an initial position and provides restoring force, so that the sliding sleeve can realize sealing of the female main body when the male assembly is separated. The plug is provided with external threads which are screwed into the main body of the female head; the blocking head is provided with a through hole, so that water can flow out of the through hole. In the invention, the sealing ring is an O-shaped sealing ring. The sliding sleeve realizes the sealing of the ring groove on the female head in a non-working state. The operating system can be ensured to carry out underwater pollution-free green operation. The sliding sleeve can automatically reset under the action of the spring in the process that the male head exits from the female head, so that the sealing of the annular groove on the female head is realized, and the system is ensured to have no leakage after the task is completed. The underwater single-way hydraulic joint can be used in multiple ways at the same time to form an underwater multi-way hydraulic joint; or used together with other kinds of underwater hydraulic joints to form a composite underwater hydraulic joint.
As shown in fig. 1, the male assembly M includes: rubber head 1, first sealing washer 2, public head oil hole 3, public head main oil gallery 4, second sealing washer 5, elastic sleeve 6, public head main part 7, curved surface 8, joint sealing washer 9 and joint screw thread 10. The rubber head 1 is arranged on the male body 7 by threads. The first sealing ring 2 and the second sealing ring 5 are respectively arranged at two sides of the male oil hole 3. The elastic sleeve 6 is arranged on the male body 7 and forms a seal with the first sealing ring 2 and the second sealing ring 5 to the male oil hole 3. The end of the elastic sleeve 6 is in contact with the curved surface 8. The axial length of the curved surface 8 is the stroke length of the elastic sleeve 6.
The elastic sleeve 6 is a thin-walled cylinder, and the end of the elastic sleeve is divided into a plurality of elastic sheets. When the plug is not in butt joint, the front end of the elastic sleeve is matched with the sealing ring, so that the sealing of the oil hole of the plug is realized; the tail end of the elastic piece is contacted with the curved surface of the lower half part of the male head. After the butt joint is completed, the elastic piece is opened and limited in the second annular groove of the female head.
As shown in fig. 2, the female assembly F includes: the novel sealing device comprises a plug 11, a spring 12, a female head main body 13, a bypass oil duct 14, a third sealing ring 15, a sliding sleeve 16, a first annular groove 17, a fourth sealing ring 18, a female head oil hole 19, a boss 20, a female head main oil duct 21, a plug 22 and a second annular groove 23. The sliding sleeve 16, the spring 12 and the plug 11 are arranged in a main oil duct 21 of the main body 13 of the female head. The sliding sleeve 16 is provided with a third sealing ring 15 and a fourth sealing ring 18, so that the first annular groove 17 is sealed. The sliding sleeve 16 is set in the initial position under the pressure of the spring 12. The plug 11 is provided with external threads to fix the plug at the end of the main oil gallery 21 of the female head. The plug 22 is provided with external threads, and the female oil hole 19 is sealed.
As shown in fig. 3, the male fitting M has completed alignment ready for insertion into the main oil gallery of the female fitting F. The elastic sleeve 6 on the male fitting F moves together with the male body 7 in the initial position of the male body 7.
After the elastic sleeve 6 contacts with the boss 20 of the female body 13, the elastic sleeve 6 stops moving in the second ring groove 23 in the female body 13, as shown in fig. 4. As shown in fig. 5, the male body 7 continues to move forward, and the elastic piece at the rear end of the elastic sleeve 6 is sprung along with the movement of the curved surface 8 on the male body 7 and is clamped in the second annular groove 23 on the female body 13. When the male body 7 contacts the sliding sleeve 16, the sliding sleeve 16 moves rearward therewith, and the spring 12 is compressed. As shown in fig. 6, when the male body 7 completes its stroke, the sliding sleeve 16 reaches the end position, and the first ring groove 17 is completely opened. The oil hole 3 on the side wall of the male body 7 is communicated with the first annular groove 17 on the female body. The tail end of the elastic sleeve 6 is positioned at the tail end of the curved surface 8 of the male body 7. The second sealing ring 5 on the male body 7 reaches the designated position of the female body and forms a seal with the boss 20.
The pulling-out process comprises the following steps: the male body 7 moves backward and the sliding sleeve 16 is reset under the action of the spring 12. After the male body 7 is separated from the sliding sleeve 16, the sliding sleeve 16 reaches the initial position. In this process, the female assembly F is always in a sealed state. The male body 7 continues to move backwards, and the elastic sleeve 6 moves along with the curved surface 8 on the male body 7 and is separated from the second annular groove 23 on the female body 13. Finally, the male assembly M is completely disengaged from the female assembly F. And (5) completing the pulling-out process.
As shown in fig. 7, the male assembly and the female assembly form multiple butt joints.
Finally, it should be noted that the above list is only specific embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. For example, the seal ring may be other types of seal rings; the spring 12 is not necessarily provided for restoring force to the sliding sleeve 16, and may take other forms and the like; the invention is only one application of the connection mode, and also comprises multi-oil-way connection applications combined by the connection mode. All modifications which one of ordinary skill in the art could directly derive from the disclosure of the present invention and which would be obvious to one of ordinary skill in the art are deemed to be within the scope of the present invention.
Claims (5)
1. The utility model provides a pollution-free single-way hydraulic joint under water which characterized in that: the novel rubber head comprises a male head assembly body and a female head assembly body, wherein the male head assembly body comprises a male head main body, a rubber head and a movable elastic sleeve, the rubber head is arranged at the upper end part of the male head main body, a curved surface is arranged at the lower half part of the male head main body, the movable elastic sleeve is sleeved on the male head main body, a male head main oil duct is arranged at the central position of the male head main body, a male head oil hole is arranged on the side wall of the male head main body, the male head main oil duct is communicated with the male head oil hole, the female head assembly body comprises a female head main body, a sliding sleeve, a plug and a spring, the plug is arranged at the upper end part of the female head main body, a female head main oil duct and a bypass oil duct are arranged in the female head main body, the sliding sleeve is arranged in the female head main oil duct and between the plug and the sliding sleeve, a first annular groove and a second annular groove are sequentially arranged on the female head main oil duct, a female head oil hole communicated with the first annular groove is arranged on the side wall of the female head main body, the end part of the female head main body is also provided with a plug matched with the elastic sleeve; after the elastic sleeve is contacted with the boss on the main body of the female head, the elastic sleeve stops moving in the second annular groove in the main body of the female head, the main body of the male head continues to move forwards, and the elastic piece at the rear end of the elastic sleeve is sprung out along with the curved surface movement on the main body of the male head and is clamped in the second annular groove on the main body of the female head; when the male body is contacted with the sliding sleeve, the sliding sleeve moves backwards along with the male body, and the spring (12) is compressed; when the male main body completes the stroke, the sliding sleeve reaches the end position, and the first annular groove is completely opened; the oil hole on the side wall of the male head main body is communicated with the first annular groove on the female head main body; the tail end of the elastic sleeve is positioned at the tail end of the curved surface of the male main body, and a second sealing ring (5) on the male main body reaches the appointed position of the female main body and forms a seal with the boss.
2. A pollution-free underwater single-way hydraulic joint as in claim 1, wherein: two first grooves are formed in the male body at the upper end and the lower end of the male oil hole, and a first sealing ring and a second sealing ring are respectively arranged in the two grooves; two second grooves are respectively formed in the outer surface of the sliding sleeve, and a third sealing ring and a fourth sealing ring are respectively arranged in the two second grooves.
3. A pollution-free underwater single-way hydraulic joint according to claim 1 or 2, characterized in that: the lower end part of the male main body is provided with a joint thread and a joint sealing ring.
4. A pollution-free underwater single-way hydraulic joint according to claim 1 or 2, characterized in that: through holes are formed in the upper end face of the sliding sleeve and the plug.
5. A pollution-free underwater single-way hydraulic joint as in claim 3, wherein: through holes are formed in the upper end face of the sliding sleeve and the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710776502.7A CN107387916B (en) | 2017-09-01 | 2017-09-01 | Pollution-free underwater single-way hydraulic joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710776502.7A CN107387916B (en) | 2017-09-01 | 2017-09-01 | Pollution-free underwater single-way hydraulic joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107387916A CN107387916A (en) | 2017-11-24 |
| CN107387916B true CN107387916B (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710776502.7A Active CN107387916B (en) | 2017-09-01 | 2017-09-01 | Pollution-free underwater single-way hydraulic joint |
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| Country | Link |
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| CN (1) | CN107387916B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498163A (en) * | 2021-12-28 | 2022-05-13 | 海洋石油工程股份有限公司 | Dynamic seal pressure compensation ROV operation underwater electric connector |
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| CN107387916A (en) | 2017-11-24 |
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