Connecting device and connecting method for testing photoelectric liquid composite submarine cable

Abstract

The invention relates to a connecting device and method for testing a photoelectric liquid composite submarine cable, and the device comprises a clamping assembly which comprises a first sleeve, a clamping part and a second sleeve, the diameter of the clamping part is gradually reduced in the direction close to the first sleeve, the clamping part can stretch into the first sleeve, the second sleeve comprises a clamping part, and the clamping part is connected with the clamping part. The clamping part can extend into the clamping piece, the first sleeve is connected with the second sleeve, and a wire passing hole is formed in the side wall of the second sleeve; the connecting piece is connected with one end, far away from the clamping part, of the second sleeve, and a plurality of through holes communicated with the second sleeve are formed in the connecting piece; the sealing piece is provided with a pressurizing cavity, the through hole is communicated with the pressurizing cavity, the sealing piece is provided with a pressurizing hole communicated with the pressurizing cavity, and the sealing piece is connected with the connecting piece. According to the connecting device and the connecting method for testing the photoelectric liquid composite submarine cable, the connecting efficiency of the photoelectric liquid composite submarine cable can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connection devices, and in particular to a connection device and a connection method for testing an optoelectronic-liquid composite submarine cable. Background Art

[0002] The electro-optical-hydraulic composite submarine cable is an important component of the underwater production system in marine oil and gas development. The steel tube electro-optical-hydraulic composite submarine cable is a composite cable composed of multiple units such as duplex stainless steel tubes, electrical cables and optical cables. Its design takes into account electrical, communication, hydraulic and other functions. After the production of the electro-optical-hydraulic composite submarine cable is completed, the electro-optical-hydraulic composite submarine cable needs to be tested to check whether the electro-optical-hydraulic composite submarine cable meets the standards. Before testing the electro-optical-hydraulic composite submarine cable, the end of the electro-optical-hydraulic composite submarine cable needs to be connected to a connecting device. The connecting device can be connected to a test tool so that the test tool can test the electro-optical-hydraulic composite submarine cable. Currently, when connecting the electro-optical-hydraulic composite submarine cable to the connecting device, the end of the electro-optical-hydraulic composite submarine cable is inserted into the connecting device, and glue is poured into the connecting device. After the glue is air-dried, the electro-optical-hydraulic composite submarine cable is tested. Due to the long drying time of the glue, the connection efficiency of the electro-optical-hydraulic composite submarine cable is low. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a connection device and a connection method for testing an optoelectronic-liquid composite submarine cable, which can improve the connection efficiency of the optoelectronic-liquid composite submarine cable.

[0004] To solve the above technical problems, the present invention provides a connection device for testing an optoelectronic-hydraulic composite submarine cable, comprising: a clamping assembly, the clamping assembly comprising a first sleeve, a clamping piece and a second sleeve, the diameter of the clamping piece gradually decreases towards the direction approaching the first sleeve, the clamping piece can be inserted into the first sleeve, the second sleeve comprises a clamping portion, the clamping portion can be inserted into the clamping piece, the first sleeve is connected to the second sleeve, and the side wall of the second sleeve is provided with a wire hole; a connecting piece, the connecting piece is connected to one end of the second sleeve away from the clamping portion, the connecting piece is provided with a plurality of through holes connected to the second sleeve; a sealing piece, the sealing piece is provided with a pressurized chamber, the through hole is connected to the pressurized chamber, the sealing piece is provided with a pressurized hole connected to the pressurized chamber, and the sealing piece is connected to the connecting piece.

[0005] In one embodiment of the present invention, the first sleeve includes a first accommodating cavity, the clamping member includes a second accommodating cavity, the second sleeve includes a third accommodating cavity, the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are interconnected and constitute a connecting channel, and the wire hole is connected to the third accommodating cavity.

[0006] In one embodiment of the present invention, the diameter of the first accommodating cavity gradually decreases in a direction away from the clamping member. The clamping member is located in the first accommodating cavity, and a first clamping space is formed between the clamping member and the side wall of the first accommodating cavity.

[0007] In one embodiment of the present invention, the diameter of the second accommodating cavity gradually decreases toward the first sleeve, the clamping portion is located in the second accommodating cavity, and a second clamping space is formed between the clamping portion and the side wall of the second accommodating cavity.

[0008] In one embodiment of the present invention, the first sleeve includes a guide portion, the guide portion is located at an end of the first sleeve away from the clamping member, and the guide portion is arranged along the circumference of the first sleeve.

[0009] In one embodiment of the present invention, the second sleeve further includes a supporting portion, a first connecting portion, and a second connecting portion. The supporting portion is located between the first connecting portion and the second connecting portion, and the wire hole is located on the supporting portion.

[0010] In one embodiment of the present invention, the first sleeve further includes a third connecting portion, the third connecting portion is located at one end of the first sleeve close to the second sleeve, the first connecting portion is located at one end of the second sleeve close to the first sleeve, and the first connecting portion is connected to the third connecting portion.

[0011] In one embodiment of the present invention, the connecting member includes a fourth connecting portion, the fourth connecting portion is located at one end of the connecting member close to the second sleeve, and the fourth connecting portion is connected to the second connecting portion.

[0012] The present invention also provides a connection method for testing an optoelectronic liquid composite submarine cable, wherein the optoelectronic liquid composite submarine cable comprises an outer sheath, an outer armored steel wire, an inner armored steel wire and an inner sheath arranged in sequence from the outside to the inside, wherein the inner sheath is covered with an electrical unit, an optical unit and a support tube, and the above-mentioned optoelectronic liquid composite submarine cable test connection device is used to connect the optoelectronic liquid composite submarine cable, comprising the following steps: S1: peeling off and cutting off the outer sheath of the optoelectronic liquid composite submarine cable to be tested, and passing the remaining part of the optoelectronic liquid composite submarine cable to be tested through a first sleeve; S2: bending the outer armored steel wire of the optoelectronic liquid composite submarine cable to be tested so that the outer armored steel wire is located between the first sleeve and the clamping member. During the test, the remaining part of the optoelectronic liquid composite submarine cable to be tested is passed through the clamping piece; S3: the inner armored steel wire of the optoelectronic liquid composite submarine cable to be tested is bent so that the inner armored steel wire is located between the clamping piece and the clamping part, and the first sleeve is connected to the second sleeve; S4: the inner sheath is peeled off and cut off, the remaining part of the optoelectronic liquid composite submarine cable to be tested is passed through the second sleeve, and the ends of the electrical unit and the optical unit are passed out from the wire hole; S5: the end of the support tube is passed through the through hole of the connector, the connector is connected to the second sleeve, and the support tube is sealed with the side wall of the through hole; S6: the sealing member is connected to the connector, and the end of the support tube is located in the pressurized chamber.

[0013] In one embodiment of the present invention, step S2 also includes a step of cutting the outer armor steel wire, cutting the outer armor steel wire so that the end of the outer armor steel wire is located between the clamping part and the first sleeve, and step S3 also includes a step of cutting the inner armor steel wire, cutting the inner armor steel wire so that the end of the inner armor steel wire is located between the clamping part and the clamping part.

[0014] The above technical solution of the present invention has the following advantages over the prior art:

[0015] The connection device and connection method for testing an electro-optical-liquid composite submarine cable described in the present invention, through the coordinated arrangement of a first sleeve, a second sleeve and a clamping piece, enables the outer armored steel wire to be clamped between the first sleeve and the clamping piece, and the inner armored steel wire to be clamped between the clamping portion and the clamping piece, so that the electro-optical-liquid composite submarine cable to be tested can be stably fixed without waiting for the colloid to air-dry, thereby improving the connection efficiency of the electro-optical-liquid composite submarine cable. When the electro-optical-liquid composite submarine cable to be tested is fixed by glue pouring using the existing technology, when the connection device needs to be fixed to another electro-optical-liquid composite submarine cable to be tested after the test of the electro-optical-liquid composite submarine cable is completed, a glue cleaning operation is required, and the processing steps are cumbersome. In the connection device for testing an electro-optical-liquid composite submarine cable of the present invention, the clamping assembly for the electro-optical-liquid composite submarine cable to be tested is a detachable connection, and the first sleeve, the second sleeve and the clamping piece can be quickly disassembled, thereby improving the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic structural diagram of a connection device for testing an optoelectronic-liquid composite submarine cable according to the present invention;

[0018] Figure 2 is a schematic diagram of the assembly structure of the second sleeve and the clamping member;

[0019] Figure 3 1 is a schematic structural diagram of the second sleeve;

[0020] Figure 4 1 is a schematic diagram of the assembly structure of the second sleeve, the connecting piece and the sealing piece;

[0021] Figure 5 It is a structural diagram of the connector;

[0022] Figure 6 It is a structural diagram of the seal;

[0023] Figure 7 It is a schematic diagram of the assembly structure of the first sleeve and the clamping member.

[0024] Explanation of the reference numerals in the specification: 1. First sleeve; 2. Second sleeve; 3. Connecting member; 4. Sealing member; 5. Clamping member; 11. Guide portion; 12. Third connecting portion; 21. Support portion; 22. Wire hole; 23. First connecting portion; 24. Second connecting portion; 25. Clamping portion; 31. Fourth connecting portion; 32. Through hole; 41. Pressurized hole; 42. Pressurized chamber. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0026] Example 1

[0027] Reference Figures 1 to 6As shown, the present invention is a connection device for testing an optoelectronic liquid composite submarine cable, characterized in that it includes: a clamping assembly, the clamping assembly includes a first sleeve 1, a clamping member 5 and a second sleeve 2, the diameter of the clamping member 5 gradually decreases towards the direction approaching the first sleeve 1, the clamping member 5 can be inserted into the first sleeve 1, the second sleeve 2 includes a clamping portion 25, the clamping portion 25 can be inserted into the clamping member 5, the first sleeve 1 is connected to the second sleeve 2, and the side wall of the second sleeve 2 is provided with a wire hole 22; a connecting member 3, the connecting member 3 is connected to one end of the second sleeve 2 away from the clamping portion 25, and the connecting member 3 is provided with a plurality of through holes 32 connected with the second sleeve 2; a sealing member 4, the sealing member 4 is provided with a pressurized chamber 42, the through hole 32 is connected with the pressurized chamber 42, the sealing member 4 is provided with a pressurized hole 41 connected with the pressurized chamber 42, and the sealing member 4 is connected to the connecting member 3.

[0028] The present embodiment is a connection device for testing an optoelectronic liquid composite submarine cable. The optoelectronic liquid composite submarine cable to be tested comprises an outer sheath, an outer armored steel wire, an inner armored steel wire and an inner sheath which are arranged in sequence from the outside to the inside. The inner sheath is covered with an electrical unit, an optical unit and a support tube, wherein the support tube can be regarded as a steel tube. First, the outer sheath of the optoelectronic liquid composite submarine cable to be tested is peeled off and cut off, and the remaining part of the optoelectronic liquid composite submarine cable to be tested is passed through the first sleeve 1; then the outer armored steel wire of the optoelectronic liquid composite submarine cable to be tested is bent so that the outer armored steel wire is located between the first sleeve 1 and the clamping member 5, and the remaining part of the optoelectronic liquid composite submarine cable to be tested is passed through the clamping member 5; further, the optoelectronic liquid composite submarine cable to be tested is The inner armored steel wire is bent so that the inner armored steel wire is located between the clamping piece 5 and the clamping portion 25, and the first sleeve 1 is connected to the second sleeve 2; further, the inner sheath is stripped and cut off, and the remaining part of the photoelectric-liquid composite submarine cable to be tested is passed through the second sleeve 2, and the ends of the electrical unit and the optical unit are passed through the wire hole 22; further, the end of the support tube is passed through the through hole 32 of the connector 3, the connector 3 is connected to the second sleeve 2, and the support tube is sealed with the side wall of the through hole 32; finally, the sealing piece 4 is connected to the connector 3, and the end of the support tube is located in the pressurized chamber 42. When the support tube needs to be pressurized, the pressurized chamber 42 is pressurized through the pressurized hole 41, thereby pressurizing the support tube. By coordinating the first sleeve 1, the second sleeve 2 and the clamping piece 5, the outer armored steel wire can be clamped between the first sleeve 1 and the clamping piece 5, and the inner armored steel wire can be clamped between the clamping portion 25 and the clamping piece 5, so that the photoelectric liquid composite submarine cable to be tested can be stably fixed without waiting for the colloid to air-dry, thereby improving the connection efficiency of the photoelectric liquid composite submarine cable. When the photoelectric liquid composite submarine cable to be tested is fixed by the glue pouring technology of the prior art, when the connection device needs to be fixed with another photoelectric liquid composite submarine cable to be tested after the test of the photoelectric liquid composite submarine cable is completed, a glue cleaning operation is required, and the processing steps are cumbersome. In the connection device for testing the photoelectric liquid composite submarine cable of the present invention, the clamping assembly for the photoelectric liquid composite submarine cable to be tested is a detachable connection, and the first sleeve 1, the second sleeve 2 and the clamping piece 5 can be quickly disassembled, thereby improving the use efficiency.

[0029] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 7As shown, the clamping assembly is used to fix the optical-electrical-hydraulic composite submarine cable to be tested, and the clamping assembly includes a connecting channel for the optical-electrical-hydraulic composite submarine cable to be tested to pass through. The clamping assembly includes a first sleeve 1, a second sleeve 2, and a clamping member 5, wherein the second sleeve 2 includes a protruding clamping portion 25, and the diameter of the clamping member 5 gradually decreases as it approaches the first sleeve 1. The clamping member 5 can extend into the first sleeve 1, and the clamping portion 25 can extend into the clamping member 5. Specifically, the first sleeve 1 includes a first accommodating cavity, and both ends of the first sleeve 1 are provided with openings communicating with the first accommodating cavity. The clamping member 5 includes a second accommodating cavity, and both ends of the clamping member 5 are provided with openings communicating with the second accommodating cavity. The second sleeve 2 includes a third accommodating cavity, and both ends of the second sleeve 2 are provided with openings communicating with the third accommodating cavity, so that the first sleeve 1, the second sleeve 2, and the clamping member 5 are all tubular. The first accommodating cavity, the second accommodating cavity and the third accommodating cavity are interconnected and constitute a connecting channel. The photoelectric-hydraulic composite submarine cable to be tested can pass through the first sleeve 1, the clamping member 5 and the second sleeve 2 in sequence.

[0030] The diameters of the first sleeve 1 and the first accommodating cavity gradually decrease in the direction away from the clamping member 5, and the diameter of the clamping member 5 gradually decreases in the direction approaching the first sleeve 1, so that the first sleeve 1, the first accommodating cavity and the clamping member 5 are all conical, and the clamping member 5 can extend into the first accommodating cavity and be located in the first accommodating cavity. A first clamping space is formed between the clamping member 5 and the side wall of the first accommodating cavity. The first clamping space is used to accommodate the outer armored steel wire of the photoelectric liquid composite submarine cable to be tested. The first sleeve 1 is connected to the second sleeve 2, so that the outer armored steel wire is clamped between the first sleeve 1 and the clamping member 5, thereby fixing the photoelectric liquid composite submarine cable to be tested.

[0031] The diameters of the clamping portion 25 of the second sleeve 2 and the second accommodating cavity of the clamping member 5 gradually decrease as they approach the first sleeve 1, resulting in both the second sleeve 2 and the second accommodating cavity being tapered. The clamping portion 25 can extend into and be located within the second accommodating cavity, and a second clamping space is formed between the clamping portion 25 and the sidewall of the second accommodating cavity. The second clamping space is used to accommodate the inner armored steel wire of the electro-optical-hydraulic composite submarine cable to be tested. The first sleeve 1 is connected to the second sleeve 2, so that the inner armored steel wire is clamped between the clamping portion 25 and the clamping member 5, thereby securing the electro-optical-hydraulic composite submarine cable to be tested. By clamping the outer armored steel wire between the first sleeve 1 and the clamping member 5, and the inner armored steel wire between the clamping portion 25 and the clamping member 5, the electro-optical-hydraulic composite submarine cable to be tested can be stably secured to the electro-optical-hydraulic composite submarine cable testing connection device.

[0032] Preferably, the first sleeve 1 includes a guide portion 11, which is located at the end of the first sleeve 1 away from the clamping member 5. The guide portion 11 is arranged around the circumference of the end of the first sleeve 1, so that the guide portion 11 is tubular as a whole. The optoelectronic-hydraulic composite submarine cable to be tested can pass through the guide portion 11, and the guide portion 11 can support the optoelectronic-hydraulic composite submarine cable to be tested. At the same time, the guide portion 11 can guide the movement of the optoelectronic-hydraulic composite submarine cable to be tested.

[0033] The second sleeve 2 also includes a support portion 21, a first connecting portion 23 and a second connecting portion 24. The support portion 21 is in the shape of a circular tube and is located between the first connecting portion 23 and the second connecting portion 24. The side wall of the second sleeve 2 is provided with a wire hole 22. Specifically, the first connecting portion 23 and the second connecting portion 24 are respectively located at both ends of the support portion 21. A plurality of wire holes 22 are located on the support portion 21, and the plurality of wire holes 22 are arranged equidistantly along the circumference of the support portion 21. The wire holes 22 are waist-shaped extending axially along the support portion 21. The first connecting portion 23 and the second connecting portion 24 are in the shape of a circular ring and have equal diameters. The diameter of the support portion 21 is smaller than the diameters of the first connecting portion 23 and the second connecting portion 24.

[0034] The first sleeve 1 also includes a third connecting portion 12, the third connecting portion 12 is located at one end of the first sleeve 1 close to the second sleeve 2, and the first connecting portion 23 is located at one end of the second sleeve 2 close to the first sleeve 1. The third connecting portion 12 is annular and has the same diameter as the first connecting portion 23. The first connecting portion 23 is connected to the third connecting portion 12. Specifically, the clamping portion 25 is located on one side of the first connecting portion 23, and the first connecting portion 23 is located between the clamping portion 25 and the support portion 21. The first connecting portion 23 is provided with a plurality of first connecting holes, and the first connecting holes are located at the edge of the first connecting portion 23. The plurality of first connecting holes are equidistantly arranged along the circumference of the second sleeve 2. The third connecting portion 12 is provided with a plurality of second connecting holes corresponding to the positions of the first connecting holes. The screw or bolt passes through the first connecting hole and the second connecting hole, and the screw or bolt is locked by a nut, so that the first connecting portion 23 is connected to the third connecting portion 12, thereby connecting the first sleeve 1 and the second sleeve 2.

[0035] Reference Figure 4 and Figure 5 As shown, the connector 3 is used to connect to the support tube of the optical-electrical-hydraulic composite submarine cable to be tested. The connector 3 is connected to the end of the second sleeve 2 away from the clamping portion 25. The connector 3 is provided with a plurality of through holes 32 that communicate with the second sleeve 2. The position and number of the through holes 32 correspond to those of the support tube. The support tube can pass through the through holes 32 and connect to the side walls of the through holes 32. The connector 3 includes a fourth connecting portion 31, which is located at the end of the connector 3 close to the second sleeve 2. The fourth connecting portion 31 is connected to the second connecting portion 24. The connection method of the fourth connecting portion 31 and the second connecting portion 24 is the same as the connection method of the first connecting portion 23 and the third connecting portion 12, and will not be repeated here.

[0036] Reference Figure 4 and Figure 6 As shown, the seal 4 is used to connect to an external pressurizing device. A pressurizing chamber 42 is provided on one side of the seal 4. The through hole 32 is connected to the pressurizing chamber 42. A pressurizing hole 41 is provided on the end of the seal 4 away from the connector 3 and connected to the pressurizing chamber 42. There are two pressurizing holes 41. The seal 4 is connected to the connector 3. The connection method between the seal 4 and the connector 3 is the same as the connection method between the first connector 23 and the third connector 12, which will not be repeated. The external pressurizing device is connected to the pressurizing hole 41. The external pressurizing device can pass gas or liquid into the pressurizing chamber 42. The gas or liquid can enter the support tube, thereby increasing the internal pressure of the support tube, and then the test photoelectric liquid composite submarine cable can be tested when the support tube is pressurized. Preferably, a sealing ring is provided at the edge of the open end of the pressurizing chamber 42, and the sealing ring can be abutted against the connector 3, thereby increasing the sealing performance of the pressurizing chamber 42.

[0037] Example 2

[0038] The present invention also provides a connection method for testing an optoelectronic liquid composite submarine cable, which uses the optoelectronic liquid composite submarine cable test connection device in Example 1 to connect with the optoelectronic liquid composite submarine cable, comprising the following steps: S1: peeling off and cutting off the outer sheath of the optoelectronic liquid composite submarine cable to be tested, and passing the remaining portion of the optoelectronic liquid composite submarine cable to be tested through the first sleeve 1; S2: bending the outer armor steel wire of the optoelectronic liquid composite submarine cable to be tested so that the outer armor steel wire is located between the first sleeve 1 and the clamping member 5, and passing the remaining portion of the optoelectronic liquid composite submarine cable to be tested through the clamping member 5; S3: bending the inner armor steel wire of the optoelectronic liquid composite submarine cable to be tested Bend the steel wire so that the inner armored steel wire is located between the clamping member 5 and the clamping portion 25, and connect the first sleeve 1 to the second sleeve 2; S4: peel off and cut the inner sheath, pass the remaining part of the optical-electrical-hydraulic composite submarine cable to be tested through the second sleeve 2, and at the same time pass the ends of the electrical unit and the optical unit through the wire hole 22; S5: pass the end of the support tube through the through hole 32 of the connector 3, connect the connector 3 to the second sleeve 2, and seal the support tube with the side wall of the through hole 32; specifically, the sealed connection can be regarded as welding; S6: connect the sealing member 4 to the connector 3, and the end of the support tube is located in the pressurized chamber 42. After the optical-electrical-hydraulic composite submarine cable to be tested is connected to the connecting device, the connecting device can be fixed to the test equipment, so that the tensile bending test of the optical-electrical-hydraulic composite submarine cable to be tested is carried out. The external pressurizing device can introduce gas or liquid into the pressurizing chamber 42, which can then enter the support tube, thereby increasing the internal pressure of the support tube. This allows the optical-electrical-hydraulic composite submarine cable to be tested while the support tube is pressurized. The optical unit and the electrical unit are connected to the test equipment to perform testing on them.

[0039] Step S2 also includes a step of cutting the outer armor steel wire, cutting the outer armor steel wire so that the end of the outer armor steel wire is located between the clamping member 5 and the first sleeve 1. Step S3 also includes a step of cutting the inner armor steel wire, cutting the inner armor steel wire so that the end of the inner armor steel wire is located between the clamping portion 25 and the clamping member 5. By cutting the outer armor steel wire and the inner armor steel wire, the first sleeve 1 and the second sleeve 2 are easier to connect, and the clamping of the outer armor steel wire and the inner armor steel wire is more stable.

[0040] The present invention provides a connection device and connection method for testing an optoelectronic liquid composite submarine cable. Through the coordinated arrangement of the first sleeve 1, the second sleeve 2 and the clamping piece 5, the outer armored steel wire can be clamped between the first sleeve 1 and the clamping piece 5, and the inner armored steel wire can be clamped between the clamping portion 25 and the clamping piece 5, so that the optoelectronic liquid composite submarine cable to be tested can be stably fixed without waiting for the colloid to air-dry, thereby improving the connection efficiency of the optoelectronic liquid composite submarine cable. When the optoelectronic liquid composite submarine cable to be tested is fixed by the glue pouring technology of the prior art, when the connection device needs to be fixed to another optoelectronic liquid composite submarine cable to be tested after the test of the optoelectronic liquid composite submarine cable is completed, a glue cleaning operation is required, and the processing steps are cumbersome. In the connection device for testing an optoelectronic liquid composite submarine cable of the present invention, the clamping assembly for the optoelectronic liquid composite submarine cable to be tested is a detachable connection, and the first sleeve 1, the second sleeve 2 and the clamping piece 5 can be quickly disassembled, thereby improving the use efficiency.

[0041] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A connection device for testing an optical-electrical-liquid composite submarine cable, characterized in that: include: A clamping assembly comprising a first sleeve, a clamping member, and a second sleeve, wherein the diameter of the clamping member gradually decreases toward the first sleeve, the clamping member being capable of extending into the first sleeve, the second sleeve comprising a clamping portion, the clamping portion being capable of extending into the clamping member, the first sleeve being connected to the second sleeve, and a side wall of the second sleeve being provided with a wire hole; a connecting member connected to an end of the second sleeve away from the clamping portion, the connecting member being provided with a plurality of through holes communicating with the second sleeve; A sealing member is provided with a pressurizing cavity, the through hole is communicated with the pressurizing cavity, the sealing member is provided with a pressurizing hole communicated with the pressurizing cavity, and the sealing member is connected to the connecting member.

2. The optical-electrical-hydraulic composite submarine cable test connection device according to claim 1, characterized in that: The first sleeve includes a first accommodating cavity, the clamping member includes a second accommodating cavity, and the second sleeve includes a third accommodating cavity. The first accommodating cavity, the second accommodating cavity and the third accommodating cavity are interconnected and form a connecting channel. The wire hole is connected to the third accommodating cavity.

3. The optical-electrical-hydraulic composite submarine cable test connection device according to claim 2, characterized in that: The diameter of the first accommodating cavity gradually decreases in a direction away from the clamping member. The clamping member is located in the first accommodating cavity, and a first clamping space is formed between the clamping member and the side wall of the first accommodating cavity.

4. The optical-electrical-hydraulic composite submarine cable test connection device according to claim 2, characterized in that: The diameter of the second accommodating cavity gradually decreases toward the first sleeve. The clamping portion is located in the second accommodating cavity, and a second clamping space is formed between the clamping portion and the side wall of the second accommodating cavity.

5. The optical-electrical-hydraulic composite submarine cable test connection device according to claim 1, characterized in that: The first sleeve includes a guide portion, which is located at an end of the first sleeve away from the clamping member, and is arranged along the circumference of the first sleeve.

6. The optical-electrical-hydraulic composite submarine cable test connection device according to claim 1, characterized in that: The second sleeve further includes a supporting portion, a first connecting portion, and a second connecting portion. The supporting portion is located between the first connecting portion and the second connecting portion, and the wire hole is located on the supporting portion.

7. The optical-electrical-hydraulic composite submarine cable test connection device according to claim 6, characterized in that: The first sleeve further includes a third connecting portion, which is located at one end of the first sleeve close to the second sleeve. The first connecting portion is located at one end of the second sleeve close to the first sleeve, and the first connecting portion is connected to the third connecting portion.

8. The optical-electrical-hydraulic composite submarine cable test connection device according to claim 6, characterized in that: The connecting member includes a fourth connecting portion, the fourth connecting portion is located at one end of the connecting member close to the second sleeve, and the fourth connecting portion is connected to the second connecting portion.

9. A connection method for testing an optoelectronic-liquid composite submarine cable, characterized in that: The photoelectric-liquid composite submarine cable comprises an outer sheath, an outer armored steel wire, an inner armored steel wire, and an inner sheath, which are arranged in sequence from the outside to the inside. The inner sheath is covered with an electrical unit, an optical unit, and a support tube. The photoelectric-liquid composite submarine cable test connection device according to any one of claims 1 to 8 is used to connect the photoelectric-liquid composite submarine cable, comprising the following steps: S1: stripping and cutting off the outer sheath of the optical-electrical-hydraulic composite submarine cable to be tested, and passing the remaining portion of the optical-electrical-hydraulic composite submarine cable to be tested through the first sleeve; S2: bending the outer armor steel wire of the optical-electrical-hydraulic composite submarine cable to be tested so that the outer armor steel wire is located between the first sleeve and the clamping piece, and passing the remaining portion of the optical-electrical-hydraulic composite submarine cable to be tested through the clamping piece; S3: Bend the inner armor steel wire of the photoelectric-liquid composite submarine cable to be tested so that the inner armor steel wire is located between the clamping piece and the clamping portion, and connect the first sleeve to the second sleeve; S4: stripping and cutting the inner sheath, passing the remaining portion of the optical-electrical-liquid composite submarine cable to be tested through the second sleeve, and passing the ends of the electrical unit and the optical unit through the cable holes; S5: Insert the end of the support tube through the through hole of the connector, connect the connector to the second sleeve, and seal the support tube to the side wall of the through hole; S6: Connect the sealing member to the connecting member, with the end of the support tube located in the pressurized chamber.

10. The connection method for testing an electro-optical-liquid composite submarine cable according to claim 9, characterized in that: The step S2 also includes a step of cutting the outer armor steel wire, cutting the outer armor steel wire so that the end of the outer armor steel wire is located between the clamping part and the first sleeve. The step S3 also includes a step of cutting the inner armor steel wire, cutting the inner armor steel wire so that the end of the inner armor steel wire is located between the clamping part and the clamping part.

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