Underwater multiway quick connector

Abstract

The application relates to the underwater hydraulic system butt joint technical field and provides an underwater multi-path quick plug connector which comprises a moving assembly and a fixed assembly; the moving assembly comprises an ROV interface, an annular fixing part, an ear plate, a sleeve, a screw rod, a connecting male head and fixing screws, the fixing screws are evenly distributed on the outer side of the screw rod in the circumferential direction, the fixing screws are sequentially arranged in the ROV interface, the ear plate and the sleeve and are at least in threaded connection with the sleeve; one end of the connecting male head is slidingly matched with the sleeve, the screw rod comprises a threaded section and a fixed section, the threaded section is in threaded connection with the connecting male head, and the fixed section is in rotating connection with the sleeve; the ear plate is sleeved with the annular fixing part, the outer side of the annular fixing part is clamped between the ROV interface and the sleeve, the inner side of the annular fixing part is clamped with the fixed section, and the annular fixing part comprises a first connecting part and a second connecting part which are detachably connected. The application is used to solve the defects that the existing underwater multi-path quick plug connector has a complex structure and it is difficult to disassemble the screw rod and the connecting male head.

Description

Technical Field

[0001] This invention relates to the field of underwater hydraulic system docking technology, and in particular to an underwater multi-channel quick-connect connector. Background Technology

[0002] The underwater multi-way quick-connect connector (MQC) is one of the important components of underwater oil and gas equipment. It mainly serves as a base for hydraulic joints, enabling multiple hydraulic joints to be connected simultaneously on underwater equipment, reducing the time required to install hydraulic joints one by one.

[0003] The related technology discloses an underwater multi-channel quick-connect connector, which achieves the mating and unlocking of the moving end and the fixed end of the underwater multi-channel quick-connect connector through the cooperation of a three-jaw chuck, a screw, and a sliding groove. The screw and the male connector are prone to damage during long-term use, affecting the operation of the equipment. Moreover, the existing underwater multi-channel quick-connect connectors have a complex structure, making it difficult to remove the screw and the male connector for maintenance or replacement.

[0004] Therefore, existing underwater multi-channel quick-connect connectors still need improvement. Summary of the Invention

[0005] This invention provides an underwater multi-channel quick-connect connector to solve the defects of existing underwater multi-channel quick-connect connectors, which are complex in structure and difficult to remove the screw and male connector. While ensuring the connection strength of each component, it reduces the difficulty of disassembling and assembling the screw and male connector.

[0006] This invention provides an underwater multi-channel quick-connect connector, comprising a movable component and a fixed component arranged opposite to each other; the movable component includes an ROV interface, an annular fixing member, a lifting lug plate, a sleeve, a screw, a male connector, and multiple fixing screws. The ROV interface, the lifting lug plate, and the sleeve are arranged coaxially in sequence. The multiple fixing screws are evenly distributed circumferentially on the outside of the screw, and the multiple fixing screws are sequentially passed through the ROV interface, the lifting lug plate, and the sleeve and are threadedly connected to at least the sleeve; one end of the male connector is slidably fitted inside the sleeve, and the screw... The assembly includes a threaded section and a fixed section. The threaded section engages with the male connector to drive the male connector to move linearly when the screw is rotated. The fixed section engages with the sleeve. A lifting lug is fitted onto the annular fixing member. The outer side of the annular fixing member is engaged between the ROV interface and the sleeve, and the inner side of the annular fixing member is engaged with the fixed section to axially limit the screw. The annular fixing member includes a detachably connected first connecting part and a second connecting part. The fixing assembly includes a female connector that matches the male connector.

[0007] According to the underwater multi-way quick-connect connector provided by the present invention, the male connector includes a locking head and a transmission part, wherein the transmission part is provided with an internal thread that engages with the threaded section.

[0008] According to the underwater multi-way quick-connect connector provided by the present invention, a lubrication cavity is formed in the transmission part, the internal thread is provided in the lubrication cavity, and the screw is provided with a filling channel communicating with the lubrication cavity.

[0009] According to the underwater multi-channel quick-connect connector provided by the present invention, the inlet end of the filling channel is located at the first end of the screw, and the outlet end of the filling channel is located at the second end of the screw.

[0010] According to the underwater multi-channel quick-connect connector provided by the present invention, the filling channel has multiple outlet ends, and the multiple outlet ends are spaced apart along a first direction on the threaded section.

[0011] According to the underwater multi-channel quick-connect connector provided by the present invention, the transmission part is slidably disposed inside the sleeve, and a plurality of first sliding sleeves are provided at intervals between the transmission part and the sleeve.

[0012] According to the underwater multi-way quick-connect connector provided by the present invention, a sliding bearing is provided between the fixed section and the sleeve; or, a second sliding sleeve is provided between the fixed section and the sleeve.

[0013] The underwater multi-way quick-connect connector provided by the present invention further includes a first connecting screw and a second connecting screw; the first connecting screw is sequentially passed through a first end of the first connecting portion and a first end of the second connecting portion and is threadedly connected to at least the first end of the second connecting portion; the second connecting screw is sequentially passed through a second end of the second connecting portion and a second end of the first connecting portion and is threadedly connected to at least the second end of the first connecting portion.

[0014] According to the underwater multi-way quick-connect connector provided by the present invention, the movable component further includes a connector mounting plate, one end of the sleeve is detachably connected to the connector mounting plate, the connector mounting plate is provided with a central hole coaxial with the sleeve, the diameter of the central hole is smaller than the inner diameter of the sleeve, so as to axially limit the male connector.

[0015] According to the underwater multi-way quick-connect connector provided by the present invention, the sleeve is provided with a pin, the outer wall of the male connector is provided with a groove, and the pin is slidably fitted in the groove; the groove includes a helical section and a straight section, and the helical section is connected to the straight section.

[0016] The underwater multi-port quick-connect connector provided by this invention utilizes multiple fixing screws evenly distributed circumferentially on the outside of the screw to detachably connect the ROV interface lifting lug and the sleeve, and configures the screw and the male connector as a threaded connection. While ensuring the connection strength and stability of each component of the connector, this simplifies the connection structure of each component and facilitates the removal of the screw and the male connector for maintenance or replacement. The underwater multi-port quick-connect connector provided by this invention solves the defects of existing underwater multi-port quick-connect connectors, such as complex structure and difficulty in removing the screw, reducing the difficulty of disassembling and assembling the screw and the male connector while ensuring the connection strength of each component.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of the underwater multi-channel quick-connect connector provided in an embodiment of the present invention.

[0020] Figure 2 This is a cross-sectional view of the moving component in the underwater multi-way quick-connect connector provided in an embodiment of the present invention.

[0021] Figure 3 yes Figure 2 Sectional view of AA.

[0022] Figure 4 This is a schematic diagram of the connection between the male and female connectors in the underwater multi-channel quick-connect connector provided in an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the male connector in the underwater multi-way quick-connect connector provided in an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the orthographic projection of the male connector in the underwater multi-channel quick-connect connector provided in an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the female connector in the underwater multi-channel quick-connect connector provided in an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the orthographic projection of the female connector in the underwater multi-way quick-connect connector provided in an embodiment of the present invention.

[0027] Figure label: 100. Moving component; 101. ROV interface; 102. Annular fastener; 1021. First connecting part; 1022. Second connecting part; 103. Lifting lug plate; 104. Sleeve; 105. Screw; 1051. Threaded section; 1052. Fixed section; 106. Connecting male; 1061. Collar; 10611. Central shaft; 10612. Claw; 1062. Transmission part; 107. Fixing screw; 108. Spacer ring; 109. First sliding sleeve; 110. Sliding bearing; 111. First connecting screw; 112. Second connecting screw; 113. Connector mounting plate; 114. Pin; 115. Slide groove; 1151. Spiral section; 1152. Straight section; 116. Filling channel.

[0028] 200, Fixing component; 201, Connecting female head; 2011, Fixing base; 2012, Slot. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0032] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] The following is combined Figures 1 to 8 This invention describes the underwater multi-channel quick-connect connector provided by the present invention.

[0035] See Figure 1 As shown, the underwater multi-channel quick-connect connector provided in this embodiment of the invention includes a movable component 100 and a fixed component 200 disposed opposite to each other.

[0036] The mobile component 100 includes an ROV interface 101, an annular fastener 102, a lifting lug 103, a sleeve 104, a screw 105, a connecting male 106, and multiple fixing screws 107. The ROV interface 101, the lifting lug 103, and the sleeve 104 are arranged coaxially in sequence. The multiple fixing screws 107 are evenly distributed circumferentially on the outside of the screw 105. The multiple fixing screws 107 are sequentially inserted through the ROV interface 101, the lifting lug 103, and the sleeve 104 and are at least threadedly connected to the sleeve 104.

[0037] One end of the male connector 106 is slidably fitted inside the sleeve 104. The screw 105 includes a threaded section 1051 and a fixed section 1052. The threaded section 1051 is threadedly fitted to the male connector 106 so that the male connector 106 can move linearly when the screw 105 is rotated. The fixed section 1052 is rotatably fitted to the sleeve 104.

[0038] The lug plate 103 is sleeved on the annular fastener 102. The outer side of the annular fastener 102 is engaged between the ROV interface 101 and the sleeve 104, and the inner side of the annular fastener 102 is engaged with the fixing section 1052 to axially limit the screw 105. The annular fastener 102 includes a first connecting part 1021 and a second connecting part 1022 that can be detachably connected.

[0039] The fixing component 200 includes a connecting female 201 that mates with the connecting male 106.

[0040] The underwater multi-channel quick-connect connector provided by this invention utilizes multiple fixing screws 107 evenly distributed circumferentially on the outer side of the screw 105 to detachably connect the ROV interface 101 lifting plate 103 and the sleeve 104, and configures the screw 105 and the male connector 106 as a threaded connection. While ensuring the connection strength and stability of each component of the connector, this simplifies the connection structure of each component and facilitates the removal of the screw 105 and the male connector 106 for maintenance or replacement. The underwater multi-channel quick-connect connector provided by this invention solves the defects of existing underwater multi-channel quick-connect connectors, such as complex structure and difficulty in removing the screw 105, reducing the difficulty of disassembling and assembling the screw 105 and the male connector 106 while ensuring the connection strength of each component.

[0041] The underwater multi-way quick-connect connector provided by this invention, when installing the screw 105 and the male connector 106 of the moving component 100, firstly, the male connector 106 is placed into the sleeve 104, with a portion of the male connector 106 slidingly engaged with the inner wall of the sleeve 104, allowing the male connector 106 to move linearly within the sleeve 104. Then, the threaded section 1051 of the screw 105 is inserted into the sleeve 104 and threadedly engaged with the male connector 106, while the fixed section 1052 rotates with the inner wall of the sleeve 104. Thus, during the rotation of the screw 105, the male connector 106 can be driven to move linearly within the sleeve 104. After the screw 105 is installed, the first connecting part 1021 and the second connecting part 1022 are clamped onto the outer wall of the fixed section 1052 to axially limit the screw 105. Then, the first connecting part 1021 and the second connecting part 1022 are connected to form an annular fixing member 102. Finally, the through holes on the ROV interface 101 and the lifting lug 103 are aligned with the screw holes on the sleeve 104. Multiple fixing screws 107 are passed through the ROV interface 101 and the lifting lug 103 in sequence and finally threadedly connected to the screw holes on the sleeve 104. At this time, the outer side of the annular fixing member 102 is clamped between the ROV interface 101 and the lifting lug 103, thus fixing the annular fixing member 102. Finally, the screw 105 and the connecting male head 106 are installed and fixed. The installation process is simple and can ensure the connection strength of each component.

[0042] When disassembling the screw 105 and connecting male 106 of the moving assembly 100, first unscrew the multiple fixing screws 107, and then remove the ROV interface 101 and the lifting lug 103 in sequence. Next, disassemble the annular fixing member 102 into a first connecting part 1021 and a second connecting part 1022, and remove the first connecting part 1021 and the second connecting part 1022 from the fixing section 1052 of the screw 105. After removing the annular fixing member 102, the screw 105 and connecting male 106 can be removed from one side of the sleeve 104. Figure 1 Remove the screw (from the left side). After removal, rotate the screw 105 to separate the screw 105 from the male connector 106. As can be seen, the underwater multi-channel quick-connect connector provided by this invention allows for quick removal of the screw 105 and male connector 106 for cleaning, maintenance, or replacement.

[0043] See Figure 2 As shown, according to some embodiments of the present invention, one end of the sleeve 104 ( Figure 2 The left end of the sleeve 104 has a radially inwardly protruding step, which divides the internal space of the sleeve 104 into a first cavity with a smaller inner diameter and a second cavity with a larger inner diameter. The fixed section 1052 of the screw 105 is rotatably engaged with the inner wall of the first cavity, and the part connecting the male head 106 (the transmission part 1062 in the following text) is slidably engaged with the inner wall of the second cavity. One end of the step ( Figure 2 The right end of the sleeve 104 can axially limit the male connector 106, preventing it from moving beyond its limit position. At this time, the male connector 106 can be moved from the other end of the sleeve 104. Figure 2 Take out the right end of the middle.

[0044] The screw 105 has an annular groove on the fixing section 1052. The inner side of the annular fastener 102 is locked in the groove. The ROV interface 101, the lifting lug 103 and the sleeve 104 fix the annular fastener 102. The annular fastener 102 then limits the screw 105 axially to prevent the screw 105 from moving axially.

[0045] The outer end of the fixed section 1052 of the screw 105 ( Figure 2 The left end of the screw 105 is a polygonal (such as a quadrilateral or hexagonal) structure, which facilitates the application of torque to the screw 105 by means of a drive device, thereby driving the screw 105 to rotate.

[0046] See Figure 2 and Figure 3As shown, the first connecting part 1021 and the second connecting part 1022 are two C-shaped parts of the same specification. The two ends of the two C-shaped parts are detachably connected to form an annular fastener 102. Spacer rings 108 are provided on both sides of the annular fastener 102. The spacer rings 108 can provide a certain degree of protection for the annular fastener 102 and extend its service life. The spacer rings 108 are preferably wear-resistant and corrosion-resistant, for example, spacer rings made of polytetrafluoroethylene and its modified materials.

[0047] See Figure 2 and Figure 4 As shown, according to some embodiments of the present invention, the male connector 106 includes a locking head 1061 and a transmission part 1062. The transmission part 1062 is provided with an internal thread that engages with the threaded section 1051. By configuring the male connector 106 as a locking head 1061 and a transmission part 1062 that are interconnected, the internal thread in the transmission part 1062 engages with the threaded section 1051. When the threaded section 1051 rotates, the transmission part 1062 is driven to move linearly, and the locking head 1061 moves synchronously. This design is simple in structure and has high operational stability.

[0048] See Figure 2 As shown, according to some embodiments of the present invention, the transmission part 1062 is slidably disposed within the sleeve 104, and a plurality of first sliding sleeves 109 are provided at intervals between the transmission part 1062 and the sleeve 104. By providing a plurality of first sliding sleeves 109 at intervals between the transmission part 1062 and the sleeve 104, the stability of the sliding connection between the transmission part 1062 and the sleeve 104 can be improved, making the transmission part 1062 slide more smoothly within the sleeve 104. At the same time, the plurality of first sliding sleeves 109 can also support different parts of the transmission part 1062, ensuring its stability during operation.

[0049] See Figure 2 As shown, according to some embodiments of the present invention, a lubrication cavity is formed within the transmission part 1062, an internal thread is provided within the lubrication cavity, and a filling channel 116 communicating with the lubrication cavity is provided on the screw 105. By providing a filling channel 116 communicating with the lubrication cavity on the screw 105, lubricant or anti-cold soldering flux can be added to the lubrication cavity without disassembling the screw 105, ensuring that sufficient lubricant or anti-cold soldering flux is always maintained in the lubrication cavity, thereby improving the service life of the screw 105 and the connecting male 106.

[0050] See Figure 2 As shown, according to some embodiments of the present invention, the inlet end of the filling channel 116 is located at the first end of the screw 105. Figure 2 The outlet end of the filling channel 116 is located at the second end of the screw 105 (middle left end). Figure 2(Right end). By placing the inlet and outlet ends of the filling channel 116 at the first and second ends of the screw 105 respectively, the machining difficulty of the filling channel 116 can be reduced, and the outlet end of the filling channel 116 is located outside the sleeve 104, facilitating external connection. After lubricant or anti-cold welding flux is injected into the lubrication cavity through the filling channel 116, the lubricant or anti-cold welding flux can be carried between the threaded section 1051 and the internal thread during the threaded connection process, achieving lubrication and anti-cold welding effects.

[0051] Specifically, in this embodiment, the inlet end of the filling channel 116 is provided with a countersunk nozzle mounting position, which facilitates connecting the inlet end of the filling channel 116 to the outside.

[0052] According to some embodiments of the present invention, the filling channel 116 has multiple outlet ends, which are spaced apart along a first direction on the threaded section 1051. By spaced apart along the first direction, materials such as lubricant or anti-cold welding flux can reach different positions of the threaded section 1051 from the multiple outlet ends during filling, thereby improving the effects of lubrication and anti-cold welding.

[0053] It should be noted that the first direction mentioned above specifically refers to the length direction of the threaded section 1051.

[0054] See Figure 2 As shown, according to some embodiments of the present invention, a sliding bearing 110 is provided between the fixed section 1052 and the sleeve 104; or, a second sliding sleeve is provided between the fixed section 1052 and the sleeve 104. By providing a sliding bearing 110 or a second sliding sleeve between the fixed section 1052 and the sleeve 104, the fixed section 1052 and the sleeve 104 can be configured to be rotatably connected, and cold welding can be prevented from occurring due to direct contact between the fixed section 1052 and the sleeve 104.

[0055] See Figure 3 As shown, according to some embodiments of the present invention, the underwater multi-way quick-connect connector further includes a first connecting screw 111 and a second connecting screw 112; the first connecting screw 111 is sequentially passed through a first end of the first connecting portion 1021 and a first end of the second connecting portion 1022 and is at least threadedly connected to the first end of the second connecting portion 1022; the second connecting screw 112 is sequentially passed through a second end of the second connecting portion 1022 and a second end of the first connecting portion 1021 and is at least threadedly connected to the second end of the first connecting portion 1021. By utilizing the first connecting screw 111 and the second connecting screw 112, the first connecting portion 1021 and the second connecting portion 1022 can be configured as a detachable connection, and the connection stability of the first connecting portion 1021 and the second connecting portion 1022 can be guaranteed.

[0056] Specifically, in this embodiment, the corresponding sides of the first connecting part 1021 and the second connecting part 1022 are respectively provided with countersunk holes to provide a receiving space for the heads of the first connecting screw 111 and the second connecting screw 112, so as to prevent the first connecting screw 111 and the second connecting screw 112 from interfering with the external component (lifting plate 103).

[0057] See Figure 2 As shown, according to some embodiments of the present invention, the movable assembly 100 further includes a connector mounting plate 113. One end of the sleeve 104 is detachably connected to the connector mounting plate 113. The connector mounting plate 113 has a central hole coaxial with the sleeve 104. The diameter of the central hole is smaller than the inner diameter of the sleeve 104 to axially limit the male connector 106. With the above arrangement, the transmission part 1062 of the male connector 106 can be axially limited by the central hole of the connector mounting plate 113 to prevent it from moving beyond its limit position. At the same time, after the connector mounting plate 113 is removed, the male connector 106 can be taken out from the opening at the end of the sleeve 104 near the connector mounting plate 113.

[0058] See Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the sleeve 104 is provided with a pin 114, and the outer wall of the connecting male head 106 is provided with a sliding groove 115. The pin 114 is slidably fitted in the sliding groove 115. The sliding groove 115 includes a helical section 1151 and a straight section 1152, and the helical section 1151 and the straight section 1152 are connected. By setting a pin 114 on the sleeve 104 that slides into the groove 115, and setting the groove 115 as a helical segment 1151 and a straight segment 1152 connected to each other, in the initial state (when the male connector 106 and the female connector 201 are not engaged), the pin 114 is located at the starting point of the helical segment 1151 of the groove 115, driving the stud to rotate in a set direction, causing the male connector 106 to move closer to the female connector 201. Under the action of the helical segment 1151 and the stud, the male connector 106 can rotate to an angle that matches the female connector 201. When the pin 114 is located at the connection position of the helical segment 1151 and the straight segment 1152, the male connector 106 and the female connector 201 engage with each other and have a certain contact area. At this time, if the screw 105 is rotated further, the male connector 106 can drive the other parts of the moving component 100 to move toward the fixed component 200, thereby realizing the docking of the moving component 100 and the fixed component 200.

[0059] Specifically, see Figure 5As shown, according to some embodiments of the present invention, the chuck head 1061 includes a central shaft 10611, and three chuck claws 10612 are evenly distributed circumferentially at one end of the central shaft 10611. Male contact surfaces are symmetrically arranged on both sides of the chuck claws 10612, and the included angle α between adjacent male contact surfaces of adjacent chuck claws 10612 is 105° to 115° (e.g., ...). Figure 6 (As shown).

[0060] See Figure 7 and Figure 8 As shown, the connecting female head 201 includes a fixing base 2011. The fixing base 2011 is provided with three slots 2012 that correspond one-to-one with the claws 10612. The claws 10612 and the slots 2012 have the same orthographic projection outline. The two sides of the slots 2012 are symmetrically provided with female head contact surfaces.

[0061] In the first connected state, the male contact surface and the female contact surface of the cooperating claw 10612 and the slot 2012 are provided with a gap of 5mm to 8mm.

[0062] In the second connection state, in the cooperating claws 10612 and slots 2012, one side of the male contact surface contacts and engages with the corresponding female contact surface.

[0063] This invention optimizes the dimensional parameters of the male connector 106 and the female connector 201. After the male connector 106 and the female connector 201 are inserted and mated, the contact area ratio of the mating male connector 106 and the female connector 201 is increased, and the compressive stress on the contact surface is reduced, thereby reducing the probability of cold welding between the contact surfaces. Furthermore, the slot 2012 of the female connector 201 and the claw 10612 of the male connector 106 are equidistant, continuous closed-loop curves. In the first connection state, there is a gap of 5mm to 8mm between the male contact surface and the female contact surface in the mating claw 10612 and slot 2012. Switching the male connector 1061 and the female connector 201 from the first connection state to the second connection state only requires rotating the male connector 106 by about 6°, greatly shortening the stroke required for the male connector 106 and the female connector 201 to achieve pre-fitting.

[0064] During connection, the chuck 1061 moves towards the location of the connecting female head 201 under the drive of the central shaft 10611. After a certain distance, the chuck 1061 and the connecting female head 201 reach the first connection state. At this time, there is a gap of 5mm to 8mm between the male contact surface and the female contact surface in each mating chuck 10612 and the slot 2012. Then, the central shaft 10611 is driven to rotate along its axial direction, causing the chuck 1061 to rotate. After rotating about 6°, one side of the mating chuck 10612 and the slot 2012... When the male contact surface engages with the corresponding female contact surface, the locking head 1061 and the connecting female head 201 are in a second connection state, so that the moving component 100 of the underwater multi-way quick-connect connector and the fixed component 200 of the underwater multi-way quick-connect connector have a connection point that can be further moved towards each other and applied with force. Then, the drive central shaft 10611 continues to move towards the fixed component 200, which can drive the moving component 100 to continue moving towards the fixed component 200 to reach the set stroke, thereby realizing the docking of the moving component 100 and the fixed component 200.

[0065] See Figure 6 As shown, according to some embodiments of the present invention, the included angle between adjacent male contact surfaces of adjacent claws 10612 is 110°. By setting the included angle between adjacent male contact surfaces of adjacent claws 10612 to 110°, the contact area between the male and female contact surfaces can be further increased when the connector 1061 and the female connector 201 are in the second connection state, thereby further reducing the probability of cold soldering. In addition, the connection stability can be increased when the connector 1061 and the female connector 201 are in the second connection state.

[0066] According to some embodiments of the present invention, in the first connection state, the gap between the male contact surface and the female contact surface of the mating claw 10612 and the slot 2012 is 6mm to 7mm. By setting the gap between the male contact surface and the female contact surface in the first connection state to 6mm to 7mm, the stroke required for the claw 1061 and the female contact surface to reach pre-fitting is further shortened while ensuring that the claw 1061 can smoothly enter the female connector 201.

[0067] For example, when the gap between the male and female contact surfaces in the first connection state is 8mm, the jack 1061 needs to be rotated 6° to reach the pre-fitting stroke. However, when the gap between the male and female contact surfaces in the first connection state is 6mm to 7mm, the jack 1061 does not need to be rotated 6° to reach the pre-fitting stroke.

[0068] See Figure 6As shown, according to some embodiments of the present invention, the ratio of the outer diameter of the jaw 10612 to the outer diameter of the central shaft 10611 is 5:3 to 7:3 (D1:D2). By setting the ratio of the outer diameter of the jaw 10612 to the outer diameter of the central shaft 10611 to between 5:3 and 7:3, while ensuring that the jaw 1061 and the connecting female head 201 are in the second connection state, and under the premise of increasing the contact area of ​​the male head contact surface and the female head contact surface, the connection strength between the central shaft 10611 and the jaw 10612 can be improved, and deformation of the central shaft 10611 can be prevented. That is, by optimizing the proportional relationship between the outer diameter of the jaw 10612 and the outer diameter of the central shaft 10611, the connection stability between the central shaft 10611 and the jaw 10612 can be improved.

[0069] Specifically, see Figure 6 As shown, in this embodiment, the chuck 10612 is a petal-shaped chuck 10612.

[0070] According to some embodiments of the present invention, the ratio of the outer diameter of the jaw 10612 to the outer diameter of the central shaft 10611 is 6:3. By setting the ratio of the outer diameter of the jaw 10612 to the outer diameter of the central shaft 10611 to 6:3, the connection strength between the central shaft 10611 and the jaw 10612 can be improved while ensuring that the jaw head 1061 and the connecting female head 201 are in the second connection state and the contact area of ​​the male head contact surface and the female head contact surface is maintained, thus preventing deformation of the central shaft 10611. That is, by further optimizing the ratio between the outer diameter of the jaw 10612 and the outer diameter of the central shaft 10611, the connection stability between the central shaft 10611 and the jaw 10612 can be improved, and the mass of the central shaft 10611 can be reduced.

[0071] See Figure 5 As shown, according to some embodiments of the present invention, the front end of the jaw 10612 is provided with a guide slope. By providing a guide surface at the front end of the jaw 10612, it can guide the jaw head 1061 when it enters the connecting female head 201, reducing the difficulty of the jaw head 1061 entering the connecting female head 201.

[0072] See Figure 5 As shown, according to some embodiments of the present invention, the taper β of the guide ramp is 60° to 63°. By setting the included angle between the guide ramp and the bottom surface of the jaw 10612 to 120° to 126°, a good guiding effect can be provided. Even if there is a certain positional deviation or slight angular mismatch during connection, the jaw 1061 can be effectively guided into the connecting female head 201, ensuring smooth connection. In addition, the appropriate included angle design can optimize the strength and stability of the jaw 10612 structure, enabling the jaw 10612 to withstand greater forces and torques during connection without easily deforming or breaking, thus helping to extend the service life of the jaw 10612.

[0073] According to some embodiments of the present invention, the male connector 106 is made of HSn60-1, HSn70-1, or plastic, and the female connector 201 is made of HSn60-1, HSn70-1, or plastic. By using the above-mentioned materials to manufacture the male connector 106 and the female connector 201, the probability of cold welding between the male connector 106 and the female connector 201 can be reduced while ensuring the quality of the male connector 106 and the female connector 201.

[0074] According to some embodiments of the present invention, the surfaces of the male connector 106 and the female connector 201 are provided with an anti-cold soldering layer. By providing an anti-cold soldering layer on the surfaces of the male connector 106 and the female connector 201, the probability of cold soldering occurring between the male connector 106 and the female connector 201 can also be reduced.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An underwater multi-channel quick-connect connector, characterized in that, Includes moving and fixed components with relative settings; The moving component includes an ROV interface, an annular fastener, a lifting lug plate, a sleeve, a screw, a connecting male, and multiple fixing screws. The ROV interface, the lifting lug plate, and the sleeve are arranged coaxially in sequence. The multiple fixing screws are evenly distributed circumferentially on the outside of the screw. The multiple fixing screws are sequentially inserted through the ROV interface, the lifting lug plate, and the sleeve and are at least threadedly connected to the sleeve. One end of the male connector is slidably fitted inside the sleeve. The screw includes a threaded section and a fixed section. The threaded section is threadedly fitted with the male connector so that the male connector can be driven to move linearly when the screw is driven to rotate. The fixed section is rotatably fitted with the sleeve. The lifting lug is sleeved on the annular fastener. The outer side of the annular fastener is engaged between the ROV interface and the sleeve, and the inner side of the annular fastener is engaged with the fixing section to axially limit the screw. The annular fastener includes a detachably connected first connecting part and a second connecting part. The fixing component includes a female connector that matches the male connector; The screw has an annular groove on its fixed section, and the inner side of the annular fastener is engaged in the groove. It also includes a first connecting screw and a second connecting screw; The first connecting screw is sequentially passed through the first end of the first connecting portion and the first end of the second connecting portion and is at least threadedly connected to the first end of the second connecting portion; The second connecting screw is sequentially inserted through the second end of the second connecting part and the second end of the first connecting part, and is at least threadedly connected to the second end of the first connecting part.

2. The underwater multi-channel quick-connect connector according to claim 1, characterized in that, The male connector includes a clamp and a transmission part, the transmission part being provided with an internal thread that mates with the threaded section.

3. The underwater multi-channel quick-connect connector according to claim 2, characterized in that, The transmission part has a lubrication cavity, the internal thread is provided in the lubrication cavity, and the screw has a filling channel communicating with the lubrication cavity.

4. The underwater multi-channel quick-connect connector according to claim 3, characterized in that, The inlet end of the filling channel is located at the first end of the screw, and the outlet end of the filling channel is located at the second end of the screw.

5. The underwater multi-channel quick-connect connector according to claim 3, characterized in that, The filling channel has multiple outlet ends, which are spaced apart along a first direction on the threaded section.

6. The underwater multi-channel quick-connect connector according to claim 2, characterized in that, The transmission part is slidably disposed inside the sleeve, and a plurality of first sliding sleeves are provided between the transmission part and the sleeve at intervals.

7. The underwater multi-channel quick-connect connector according to claim 1, characterized in that, A sliding bearing is provided between the fixed section and the sleeve; Alternatively, a second sliding sleeve may be provided between the fixed section and the sleeve.

8. The underwater multi-channel quick-connect connector according to any one of claims 1 to 7, characterized in that, The movable component also includes a connector mounting plate, one end of the sleeve is detachably connected to the connector mounting plate, the connector mounting plate is provided with a central hole coaxial with the sleeve, the diameter of the central hole is smaller than the inner diameter of the sleeve, so as to axially limit the male connector.

9. The underwater multi-channel quick-connect connector according to any one of claims 1 to 7, characterized in that, The sleeve is provided with a pin, and the outer wall of the male connector is provided with a sliding groove, and the pin is slidably fitted in the sliding groove; The groove includes a helical section and a straight section, and the helical section is connected to the straight section.

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