Connecting device for connecting optical-electric composite cable and tractor and geological information collection equipment

Abstract

The present application provides a connection device and geological information collection equipment for connecting an optoelectronic composite cable and a tractor. The openings at both ends of the tube body of the connection device along a first direction are respectively a first opening and a second opening. The first opening is inserted into the optoelectronic composite cable, and the second opening is connected to the tractor. A sealing assembly is disposed within the tube body, the sealing assembly comprising: a sealing cap, a sealing tube, and a sealing plug. The sealing tube extends along the first direction. The sealing cap is screwed to an end of the sealing tube near the first opening. The sealing cap and the sealing tube are screwed together to form an extrusion cavity. An extrusion structure is provided in the extrusion cavity. The sealing cap and the extrusion structure are respectively provided with a first through hole and a second through hole. The sealing plug is screwed to an end of the sealing tube near the second opening and seals the opening of the sealing tube near the second opening. The optoelectronic composite cable inserted from the first opening is split into a cable portion and an optical fiber portion. The cable portion is connected to the tractor at the second opening. The optical fiber portion extends into the sealing tube and deforms to seal the second through hole.

Description

Technical Field

[0001] The present application relates to the technical field of oil extraction, and in particular to a connecting device for connecting an optoelectronic composite cable and a tractor, and geological information collection equipment. Background Art

[0002] Before oil extraction, geological information of the extraction site (such as porosity, permeability and oil saturation) needs to be collected to determine the stratigraphic characteristics of the collection site, so that staff can determine the extraction method, extraction time, extraction precautions and other information based on the specific stratigraphic characteristics.

[0003] The cable is connected to the tractor and the logging instrument respectively through a connecting device. The cable provides power to the tractor and the logging instrument. The tractor can carry the cable, the connecting device and the logging instrument forward in the wellbore to the predetermined collection position. When the tractor arrives at the predetermined collection position with the logging instrument, the logging instrument can collect and transmit geological information.

[0004] The optoelectronic composite cable is a new type of structure that integrates power transmission copper and optical fiber. The power transmission copper enables the optoelectronic composite cable to have the power transmission performance of an electric cable, while the optical fiber enables the optoelectronic composite cable to have the collection and transmission functions of a well logging instrument.

[0005] Therefore, the electrical cables and logging instruments can be replaced by optoelectronic composite cables, so that geological information can be collected through a combination of optoelectronic composite cables, connecting devices and tractors. However, after the replacement, the existing connecting devices cannot match the connection between the optoelectronic composite cables and the tractors. For this reason, the present application proposes a connecting device for connecting the optoelectronic composite cables and the tractors. Summary of the Invention

[0006] The purpose of the embodiments of the present application is to provide a connecting device for connecting an optoelectronic composite cable and a tractor and a geological information collection device, so that the connecting device for connecting an optoelectronic composite cable and a tractor can adapt to the connection between the optoelectronic composite cable and the tractor.

[0007] In the first aspect, the present application provides a connection device for connecting an optoelectronic composite cable and a tractor, the connection device for connecting an optoelectronic composite cable and a tractor comprising: a tube body and a sealing assembly, the tube body extending in a first direction, the openings at both ends of the tube body along the first direction being a first opening and a second opening respectively, the first opening being used to insert the optoelectronic composite cable, the second opening being used to connect the tractor, the sealing assembly being arranged in the tube body, the sealing assembly comprising: a sealing cap, a sealing tube and a sealing plug, the sealing tube extending in the first direction, the sealing cap being screwed to one end of the sealing tube close to the first opening, the sealing cap and the sealing tube being screwed together and cooperating to form an extrusion cavity, the extrusion cavity being provided with an extrusion structure, the extrusion structure They respectively abut the inner wall of the sealing cap and the sealing tube, at least part of the extrusion structure is elastic, the sealing cap and the extrusion structure are respectively provided with a first through hole and a second through hole connected to the inside of the sealing tube, the sealing plug is screwed to one end of the sealing tube close to the second opening and closes the opening of the sealing tube close to the second opening; wherein, the optoelectronic composite cable passed through the first opening is split into a cable part and an optical fiber part, the cable part is connected to the puller at the second opening, the optical fiber part passes through the first through hole and the second through hole and extends into the sealing tube, and the optical fiber parts corresponding to both sides of the second through hole are deformed to close the second through hole during the process of screwing the sealing cap to the sealing tube and / or screwing the sealing plug to the sealing tube.

[0008] In some embodiments, the extrusion structure includes: an elastic sleeve and a clamping ring, the elastic sleeve and the clamping ring are distributed in the first through hole along the first direction, the elastic sleeve and the clamping ring are respectively provided with a third through hole and a fourth through hole, the third through hole and the fourth through hole correspond to each other to cooperate to form the second through hole, the elastic sleeve is an elastic structural part, and the elasticity of the clamping ring is less than the elasticity of the elastic sleeve; wherein, after the sealing cap and the sealing plug are respectively screwed to the sealing tube, the elastic sleeve is deformed to radially extrude the optical fiber part, and the two sides of the elastic sleeve and the clamping ring opposite to each other respectively abut the sealing cap and the sealing tube.

[0009] In some embodiments, the inner diameter of the first through hole tends to increase along the first direction; the elastic sleeve abuts the inner wall of the first through hole, and the inner diameter of the elastic sleeve tends to increase along the first direction; the outer diameter of the clamping ring remains unchanged along the first direction, and the outer surface of the clamping ring close to one end of the sealing tube is raised with a circle of outer edge, and the end of the clamping ring close to the elastic sleeve extends into the elastic sleeve, and the outer edge abuts the elastic sleeve and the sealing tube on both sides along the first direction respectively.

[0010] In some embodiments, the connecting device connecting the optoelectronic composite cable and the traction device may further include: a fixing component, the fixing component is arranged in the tube body and is located between the first opening and the sealing component, the fixing component includes: a fixed plug and a butt column, the fixed plug abuts a circle of the inner wall of the tube body, the fixed plug is provided with a fifth through hole, the radial dimension of the fifth through hole is less than or equal to the diameter of the optoelectronic composite cable, and the abutment column passes through the tube body and abuts the fixed plug; wherein, the optoelectronic composite cable inserted from the first opening passes through the fifth through hole, and the steel wire armor on the outer surface of the optoelectronic composite cable passing through the fifth through hole is bent in a direction opposite to the first direction and abuts the inner wall of the tube body.

[0011] In some embodiments, the inner diameter of the first section of the tube body corresponding to one end of the first opening tends to increase along the first direction; the fixed plug abuts against a circle of the inner wall of the first section of the tube body, and the fixed plug is provided with multiple sixth through holes around the fifth through hole, and the steel wire outer armor is bent into multiple bundles and respectively passes through the multiple sixth through holes to abut against the inner wall of the first section of the tube body.

[0012] In some embodiments, the connecting device connecting the optoelectronic composite cable and the tractor may further include: a branching assembly, the branching assembly being arranged in the tube body and located between the fixing assembly and the sealing assembly, the branching assembly being provided with an inlet, a first outlet and a second outlet connected in pairs, the inlet being close to the fifth through hole, the inlet being used to pass through the optoelectronic composite cable, the first outlet being used to pass through the cable portion, and the second outlet being used to pass through the optical fiber portion.

[0013] In some embodiments, the branching assembly includes: a first branching piece, a second branching piece and a fastener. The first branching piece and the second branching piece are connected to form a branching cavity. The ends of the first branching piece and the second branching piece that are connected to each other cooperate to form the inlet. The sides of the first branching piece and the second branching piece that are connected to each other cooperate to form the first outlet. The other ends of the first branching piece and the second branching piece that are connected to each other cooperate to form the second outlet. The fastener can detachably connect the first branching piece and the second branching piece.

[0014] In some embodiments, the caliber of the first opening is smaller than or equal to the diameter of the optoelectronic composite cable. When the caliber of the first opening is smaller than the diameter of the optoelectronic composite cable, the optoelectronic composite cable is interference fit in the first opening. After the tractor is connected to the second opening, the second opening is closed.

[0015] In the second aspect, the present application provides a geological information collection device, which includes: an optoelectronic composite cable, a tractor and a connecting device for connecting the optoelectronic composite cable and the tractor as described above; wherein, the optoelectronic composite cable includes: a fiber core, a steel tube layer, a first insulation layer, a cable layer, a second insulation layer and a steel wire outer armor, the steel tube layer, the first insulation layer, the cable layer, the second insulation layer and the steel wire outer armor are wrapped around the fiber core in sequence, and the fiber core, the steel tube layer and the first insulation layer form the optical fiber part of the optoelectronic composite cable, and the cable layer and the second insulation layer removed from the outside of the first insulation layer form the cable part of the optoelectronic composite cable.

[0016] In some embodiments, the geological information collection equipment may further include: a clamping device, the clamping device including: a first clamping member and a second clamping member, the first clamping member and the second clamping member being docked with each other to clamp the optoelectronic composite cable outside the connecting device connecting the optoelectronic composite cable and the tractor between the first clamping member and the second clamping member.

[0017] The present application provides a connecting device for connecting an optoelectronic composite cable and a tractor, and a geological information collection device. The connecting device for connecting the optoelectronic composite cable and the tractor can be used to connect the optoelectronic composite cable and the tractor respectively to form a geological information collection device. At the same time, the setting of the sealing component can seal the end of the optical fiber part to prevent liquid that accidentally enters the tube body from contacting the end of the optical fiber part, thereby reducing the probability of liquid contacting the optical fiber part and causing damage to the fiber core of the optical fiber part.

[0018] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and to implement it in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0020] Figure 1 A perspective view schematically shows a connecting device for connecting an optoelectronic composite cable and a tractor;

[0021] Figure 2 Schematically shows a cross-sectional exploded view of a sealing assembly;

[0022] Figure 3 Schematically shows a schematic diagram of the sealing assembly close to the first opening side;

[0023] Figure 4 A schematic diagram of the sealing plug close to the first opening is shown schematically;

[0024] Figure 5 Schematically shows a cross-sectional view of a branching assembly;

[0025] Figure 6 A perspective view schematically illustrates a geological information acquisition device;

[0026] Figure 7 The cross-sectional view of the optoelectronic composite cable is schematically shown.

[0027] Description of Figure Numbers:

[0028] 10 - Connecting device for connecting the optical-electric composite cable and the tractor, 11 - Tube body, 111 - First connecting structure, 12 - Sealing assembly, 121 - Sealing cap, 1211 - First through hole, 122 - Sealing tube, 123 - Sealing plug, 124 - Extrusion structure, 1241 - Elastic sleeve, 1242 - Clamp, 13 - Fixing assembly, 131 - Fixing plug, 1311 - Fifth through hole, 1312 - Sixth through hole, 132 - Abutment column, 14 - Branching assembly, 141 - Inlet, 142 - First outlet, 143 - Second outlet, 144 - First branching piece, 1441 - Fastening hole;

[0029] 100-geological information acquisition equipment, 20-photoelectric composite cable, 21-cable part, 22-optical fiber part, 201-fiber core, 202-steel pipe layer, 203-first insulation layer, 204-cable layer, 205-second insulation layer, 206-steel wire armor, 30-clamping device. DETAILED DESCRIPTION

[0030] The following describes exemplary embodiments of the present application in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0031] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this application belongs.

[0032] First aspect

[0033] The embodiment of the present application provides a connecting device 10 for connecting an optoelectronic composite cable and a tractor. Figures 1 to 7As shown, the connecting device 10 for connecting the optoelectronic composite cable and the tractor includes: a tube body 11 and a sealing assembly 12, the tube body 11 extends along a first direction, the openings at both ends of the tube body 11 along the first direction are respectively a first opening and a second opening, the first opening is used to penetrate the optoelectronic composite cable 20, and the second opening is used to connect the tractor, the sealing assembly 12 is arranged in the tube body 11, and the sealing assembly 12 includes: a sealing cap 121, a sealing tube 122 and a sealing plug 123, the sealing tube 122 extends along the first direction, the sealing cap 121 and the sealing tube 122 are screwed together at one end close to the first opening, and the sealing cap 121 and the sealing tube 122 are screwed together to form an extrusion cavity, and an extrusion structure 124 is provided in the extrusion cavity, and the extrusion structure 124 abuts against the inner wall of the sealing cap 121 and the sealing tube 123 respectively. 22, at least part of the extrusion structure 124 is elastic, the sealing cap 121 and the extrusion structure 124 are respectively provided with a first through hole 1211 and a second through hole connected to the interior of the sealing tube 122, the sealing plug 123 is screwed to one end of the sealing tube 122 near the second opening and closes the opening of the sealing tube 122 near the second opening; wherein, the optoelectronic composite cable 20 inserted from the first opening is split into a cable portion 21 and an optical fiber portion 22, the cable portion 21 is connected to the puller at the second opening, the optical fiber portion 22 passes through the first through hole 1211 and the second through hole and extends into the sealing tube 122, and the optical fiber portions 22 corresponding to both sides of the second through hole are deformed in the process of screwing the sealing cap 121 to the sealing tube 122 and / or screwing the sealing plug 123 to the sealing tube 122 to close the second through hole.

[0034] Specifically, the tube body 11 mentioned above extends along the first direction, and the inner tube wall / outer tube wall of the tube body 11 can extend linearly along the first direction, or can extend in a wavy manner along the first direction, or can extend in other shapes.

[0035] The first opening mentioned above is used to insert the optoelectronic composite cable 20. The caliber of the first opening is greater than, less than or equal to the diameter of the optoelectronic composite cable 20. When the caliber of the first opening is greater than the diameter of the optoelectronic composite cable 20, the gap between the optoelectronic composite cable 20 and the first opening can be blocked by wrapping an insulating sealing material around the optoelectronic composite cable 20 to reduce the probability of liquid entering the tube body 11 through the first opening. When the caliber of the first opening is smaller than the diameter of the optoelectronic composite cable 20, the optoelectronic composite cable 20 is interference fit in the first opening so that there is no gap between the optoelectronic composite cable 20 and the first opening to reduce the probability of liquid entering the tube body 11 through the first opening. When the caliber of the first opening is equal to the diameter of the optoelectronic composite cable 20, there is no gap between the optoelectronic composite cable 20 and the first opening to reduce the probability of liquid entering the tube body 11 through the first opening.

[0036] The second opening is used to connect the tractor. Here, the inner wall / outer wall of the tube body 11 near the second opening can be provided with a first connecting structure 111, and the tractor can be provided with a second connecting structure adapted to the first connecting structure 111. When the second connecting structure is connected to the first connecting structure 111, the connection between the tractor and the tube body 11 can be realized, for example: Figure 1 As shown, the first connection structure 111 is a circle of internal threads provided on the inner wall of the tube body 11, while the second connection structure is a circle of external threads on the retractor. Thus, the connection of the external and internal threads enables the retractor to be connected to the tube body 11. It should be noted that when the retractor is connected to the tube body 11, the retractor closes the second opening or a gap exists between the retractor and the second opening. When there is a gap between the retractor and the second opening, the gap can be sealed by filling it with an insulating sealing material to reduce the chance of liquid entering the tube body 11 through the second opening.

[0037] The sealing tube 122 extends in a first direction. The inner tube wall / outer tube wall of the sealing tube 122 may extend in a straight line in the first direction, or may extend in a wavy manner in the first direction, or may extend in other shapes. The sealing cap 121 is screwed to the end of the sealing tube 122 near the first opening. The sealing cap 121 may be screwed to an inner circle of the sealing tube 122 or an outer circle of the sealing tube 122. The sealing plug 123 is screwed to the end of the sealing tube 122 near the second opening and closes the opening of the sealing tube 122 near the second opening. In other words, the sealing plug 123 is screwed to an inner circle of the sealing tube 121 or an outer circle of the sealing tube 121.

[0038] Here, the optoelectronic composite cable 20 penetrates the tube body 11 from the first opening of the tube body 11, and the optoelectronic composite cable 20 penetrates the tube body 11 and is divided into a cable portion 21 and an optical fiber portion 22. The cable portion 21 is connected to the tractor connected to the second opening so as to be able to power the tractor, and the optical fiber portion 22 passes through the first through hole 1211 and the second through hole and extends into the sealing tube 122. When the sealing plug 123 is screwed to the sealing tube 122 and the sealing cap 121 is further screwed to the sealing tube 122, the space where the extrusion structure 124 is located is gradually reduced so that the extrusion structure 1 The inner edge dimension of 24 (i.e., the aperture of the second through hole) decreases, while the outer edge dimension increases. As the inner edge dimension decreases, the inner edge of the extrusion structure 124 squeezes the surface of the optical fiber portion 22 within the second through hole, preventing the optical fiber portion 22 from moving. Because the end of the optical fiber portion 22 abuts the sealing plug 123, during the process of threading the sealing cap 121 and the sealing tube 122 together, the optical fiber portion 22 on the side of the second through hole near the sealing plug 123 is axially squeezed and deformed to convexly seal the second through hole, thereby sealing the end of the optical fiber portion 22 within the sealing assembly 12. Here, the optical fiber portion 22 can be used to collect geological information and transmit data.

[0039] In this embodiment, the optoelectronic composite cable 20 and the tractor can be connected respectively by the connecting device 10 for connecting the optoelectronic composite cable and the tractor to form a geological information acquisition device 100. At the same time, the setting of the sealing component 12 can seal the end of the optical fiber part 22 to prevent the liquid that accidentally enters the tube body 11 from contacting the end of the optical fiber part 22, thereby reducing the probability of liquid contacting the optical fiber part 22 and causing damage to the fiber core 201 of the optical fiber part 22, such as: reducing the probability of hydrogen damage to the fiber core 201.

[0040] In some embodiments, the extrusion structure 124 is an elastomer. After the sealing cap 121 and the sealing plug 123 are respectively screwed to the sealing tube 122, the elastomer deforms to radially squeeze the optical fiber portion 22 and limit the optical fiber portion 22 passing through the second through hole. After being limited, the optical fiber portion 22 is further subjected to axial extrusion force and deformed radially into a convex shape, thereby sealing the end of the optical fiber portion 22 in the sealing assembly 12.

[0041] In other embodiments, see Figure 2 As shown, the extrusion structure 124 includes: an elastic sleeve 1241 and a snap ring 1242, the elastic sleeve 1241 and the snap ring 1242 are distributed in the first through hole 1211 along the first direction, the elastic sleeve 1241 and the snap ring 1242 are respectively provided with a third through hole and a fourth through hole, the third through hole and the fourth through hole correspond to each other to cooperate to form a second through hole, the elastic sleeve 1241 is an elastic structural part, and the elasticity of the snap ring 1242 is less than the elasticity of the elastic sleeve 1241; wherein, after the sealing cap 121 and the sealing plug 123 are respectively screwed to the sealing tube 122, the elastic sleeve 1241 is deformed to radially extrude the optical fiber part 22, and the two sides of the elastic sleeve 1241 and the snap ring 1242 facing away from each other respectively abut against the sealing cap 121 and the sealing tube 122.

[0042] Specifically, the elastic sleeve 1241 and the snap ring 1242 are distributed along the first direction within the first through hole 1211. Here, the snap ring 1242 can be disposed within the elastic sleeve 1241 or between the elastic sleeve 1241 and the sealing tube 122. The elastic sleeve 1241 is an elastic structural member, and the elasticity of the snap ring 1242 is less than that of the elastic sleeve 1241. This allows the snap ring 1242 to support the elastic sleeve 1241 when the sealing cap 121 and the sealing tube 122 and / or the sealing plug 123 and the sealing tube 122 are screwed together, thereby reducing the chance of the elastic sleeve 1241 being squeezed into the sealing tube 122 during the screwing process.

[0043] In this embodiment, the extrusion structure 124 has a simple structure, and compared with the structure in which the extrusion structure 124 is an elastomer, the extrusion structure 124 in this embodiment can reduce the probability of squeezing the extrusion structure 124 into the sealing tube 122 during the process of screwing the sealing cap 121 and the sealing tube 122 and / or the sealing plug 123 and the sealing tube 122.

[0044] In some embodiments, see Figure 2 As shown, the inner diameter of the first through hole 1211 increases along the first direction, the elastic sleeve 1241 abuts against the inner wall of the first through hole 1211, and the inner diameter of the elastic sleeve 1241 increases along the first direction. The outer diameter of the snap ring 1242 remains unchanged along the first direction. The outer surface of the snap ring 1242 near the end of the sealing tube 122 has a raised outer edge, and the end of the snap ring 1242 near the elastic sleeve 1241 extends into the elastic sleeve 1241. The outer edge abuts against the elastic sleeve 1241 and the sealing tube 122 on both sides along the first direction. In other words, the sealing cap 121, the elastic sleeve 1241, and the snap ring 1242 are sequentially connected along the first direction.

[0045] In this embodiment, one end of the corresponding elastic sleeve 1241 of the retaining ring 1242 abuts against a circle of the inner wall of the elastic sleeve 1241, so that during the extrusion process, the part of the elastic sleeve 1241 close to the optical fiber part 22 can be concentratedly squeezed, so that the optical fiber part 22 can be quickly radially squeezed to limit the optical fiber part 22.

[0046] In some embodiments, see Figure 1 and Figure 4 As shown, the connecting device 10 connecting the optoelectronic composite cable and the tractor may also include: a fixing component 13, the fixing component 13 is arranged in the tube body 11 and is located between the first opening and the sealing component 12, the fixing component 13 includes: a fixing plug 131 and an abutting column 132, the fixing plug 131 abuts a circle of the inner wall of the tube body 11, and the fixing plug 131 is provided with a fifth through hole 1311, the radial dimension of the fifth through hole 1311 is less than or equal to the diameter of the optoelectronic composite cable 20, the abutting column 132 passes through the tube body 11 and abuts the fixing plug 131; wherein, the optoelectronic composite cable 20 inserted from the first opening passes through the fifth through hole 1311, and the steel wire armor 206 on the outer surface of the optoelectronic composite cable 20 passing through the fifth through hole 1311 is bent in a direction opposite to the first direction and abuts the inner wall of the tube body 11.

[0047] Specifically, the radial dimension of the fifth through hole 1311 is smaller than or equal to the diameter of the optical fiber composite cable 20. When the radial dimension of the fifth through hole 1311 is smaller than the diameter of the optical fiber composite cable 20, the optical fiber composite cable 20 is interference-fitted into the fifth through hole 1311 of the fixed plug 131. The fixed plug 131 may be cylindrical extending in the first direction, with the outer surface of the cylindrical shape abutting against the inner wall of the tube body 11, or may be cylindrical. Figure 1 The truncated cone shape with an increasing trend along the first direction shown in the figure may also be other shapes.

[0048] The abutment column 132 mentioned above passes through the tube body 11 and abuts the fixed plug 131 to reduce the probability of the fixed plug 131 rotating in the tube body 11, thereby reducing the probability of the optoelectronic composite cable 20 in the tube body 11 being twisted off due to the rotation of the fixed plug 131. Here, the abutment column 132 can be a column without threads on the surface, or a column with threads on the surface. When the surface of the abutment column 132 is threaded, the hole in the tube body 11 for passing the abutment column 132 is a threaded hole to cooperate with the abutment column 132 for screw connection. The screw connection between the tube body 11 and the abutment column 132 makes it possible to minimize the displacement of the fixed plug 131 after the abutment column 132 is connected to the tube body 11, thereby better limiting the position of the fixed plug 131.

[0049] The optoelectronic composite cable 20 that passes through the first opening passes through the fifth through hole 1311, and the steel wire armor 206 on the outer surface of the optoelectronic composite cable 20 that passes through the fifth through hole 1311 is bent in a direction opposite to the first direction and then abuts against the inner wall of the tube body 11. Here, when there is a gap between the optoelectronic composite cable 20 and the inner wall of the tube body 11, the steel wire armor 206 on the outer surface of the optoelectronic composite cable 20 can be bent in a direction opposite to the first direction and then abut against the inner wall of the tube body 11 at the gap; and when there is no gap between the optoelectronic composite cable 20 and the inner wall of the tube body 11, the steel wire armor 206 on the outer surface of the optoelectronic composite cable 20 can be extended for a distance after passing through the fifth through hole 1311 and then bent.

[0050] In this embodiment, by setting the fixing component 13, the position of the optoelectronic composite cable 20 can be limited to reduce the probability of displacement of the optoelectronic composite cable 20. At the same time, the bent part of the steel wire armor 206 forms a fixed weak point of the optoelectronic composite cable 20, so that when the geological information acquisition equipment 100 encounters a complex situation underground, the steel wire armor 206 at the fixed plug 131 can be pulled off to ensure that the middle of the optoelectronic composite cable 20 will not be pulled off, so as to facilitate later salvage.

[0051] In some embodiments, see Figure 1 As shown, the inner diameter of the first section of the tube body 11 corresponding to the first opening end increases along the first direction, the fixed plug 131 abuts against a circle of the inner wall of the first section of the tube body, the fixed plug 131 is provided with a plurality of sixth through holes 1312 around the fifth through hole 1311, and the steel wire outer armor 206 is bent and divided into multiple bundles and respectively passes through the plurality of sixth through holes 1312 to abut against the inner wall of the first section of the tube body.

[0052] Specifically, the radial shape of the sixth through-hole 1312 can be circular, a regular hexagon, or other shapes. The steel wire armor 206 is bent and divided into multiple bundles, which are then passed through the multiple sixth through-holes 1312 to abut the inner wall of the first tube section. The multiple sixth through-holes 1312 can be arranged along an arc or a ring. The steel wire armor 206 is a protective layer on the outer surface of the optical fiber composite cable 20 and has an annular structure. The multiple sixth through-holes 1312 are arranged around the fifth through-hole 1311. Thus, each sixth through-hole 1312 can be passed through a corresponding steel wire armor 206 located nearby.

[0053] In this embodiment, the inner diameter of the first tube section increases along the first direction, so that when the optoelectronic composite cable 20 is pulled along a second direction opposite to the first direction, the first tube section can block the fixed plug 131 to withstand the pulling force.

[0054] In some embodiments, see Figure 1 and Figure 5 As shown, the connecting device 10 connecting the optoelectronic composite cable and the tractor can also include: a branching component 14, the branching component 14 is arranged in the tube body 11 and is located between the fixing component 13 and the sealing component 12, the branching component 14 is provided with an inlet 141, a first outlet 142 and a second outlet 143 connected in pairs, the inlet 141 is close to the fifth through hole 1311, the inlet 141 is used to insert the optoelectronic composite cable 20, the first outlet 142 is used to pass through the cable part 21, and the second outlet 143 is used to pass through the optical fiber part 22.

[0055] Here, the diameter of the inlet 141 is greater than, less than, or equal to the diameter of the optoelectronic composite cable 20. When the diameter of the inlet 141 is greater than the diameter of the optoelectronic composite cable 20, the gap between the inlet 141 and the optoelectronic composite cable 20 can be filled with an insulating sealing material. When the diameter of the inlet 141 is less than the diameter of the optoelectronic composite cable 20, the optoelectronic composite cable 20 is interference-fitted into the inlet 141. Thus, the probability of liquid accidentally entering the tube body 11 entering the branching assembly 14 through the gap between the inlet 141 and the unsplit optoelectronic composite cable 20 can be reduced.

[0056] The diameter of the first outlet 142 may be greater than, less than, or equal to the diameter of the cable portion 21. When the diameter of the first outlet 142 is greater than the diameter of the cable portion 21, an insulating sealing material may be filled between the first outlet 142 and the cable portion 21. When the diameter of the first outlet 142 is less than the diameter of the cable portion 21, the cable portion 21 is interference-fitted into the first outlet 142. This reduces the chance of liquid accidentally entering the tube body 11 and entering the breakout assembly 14 through the gap between the first outlet 142 and the cable portion 21.

[0057] The diameter of the second outlet 143 may be greater than, less than, or equal to the diameter of the optical fiber portion 22. When the diameter of the second outlet 143 is greater than the diameter of the optical fiber portion 22, an insulating sealing material may be filled between the second outlet 143 and the optical fiber portion 22. When the diameter of the second outlet 143 is less than the diameter of the optical fiber portion 22, the optical fiber portion 22 is interference-fitted into the second outlet 143. This reduces the probability of liquid accidentally entering the tube body 11 and entering the breakout assembly 14 through the gap between the second outlet 143 and the optical fiber portion 22.

[0058] In this embodiment, the splitter assembly 14 can be used to split the optoelectronic composite cable 20 into the cable portion 21 and the optical fiber portion 22 and fix the unsplit optoelectronic composite cable 20 and the split cable portion 21 and optical fiber portion 22 respectively.

[0059] In some embodiments, see Figure 1 and Figure 5 As shown, the branching assembly 14 includes: a first branching piece 144, a second branching piece and a fastener. The first branching piece 144 and the second branching piece are connected to form a branching cavity. The ends of the first branching piece 144 and the second branching piece that are connected to each other cooperate to form an inlet 141. The sides of the first branching piece 144 and the second branching piece that are connected to each other cooperate to form a first outlet 142. The other ends of the first branching piece 144 and the second branching piece that are connected to each other cooperate to form a second outlet 143. The fastener can detachably connect the first branching piece 144 and the second branching piece.

[0060] Here, see Figure 5 As shown, the first dividing piece 144 can be provided with a fastening hole 1441 with an internal thread structure, and the second dividing piece is provided with a corresponding hole with an internal thread, so that the screw serving as a fastener can be screwed into the fastening hole 1441 of the first dividing piece 144 and the hole of the second dividing piece respectively.

[0061] In this embodiment, the first branching member 144 and the second branching member are detachably connected by fasteners, so as to facilitate adjustment of the splitting position of the optoelectronic composite cable 20, the cable part 21 and the optical fiber part 22 in the branching assembly 14.

[0062] Exemplarily, the line splitting assembly 14 includes: a first line splitting component and a second line splitting component, one side of the first line splitting component is recessed with a first strip-shaped recess and a second strip-shaped recess, the first strip-shaped recess extends along the first direction and the two ends of the first strip-shaped recess respectively correspond to the two end edges of the first line splitting component along the first direction, one end of the second strip-shaped recess is connected to the first strip-shaped recess, and the other end of the second strip-shaped recess corresponds to one side edge of the first line splitting component along the first direction; the second line splitting component is docked with the side of the first line splitting component where the first strip-shaped recess is provided; wherein the two ends of the first strip-shaped recess cooperate with the second line splitting component to form an inlet 141 and a second outlet 143, and the second strip-shaped recess cooperates with the second line splitting component to form a second outlet 143. In this embodiment, the first strip-shaped recess limits the unsplit optoelectronic composite cable 20 and the split optical fiber part 22, while the second strip-shaped recess limits the split cable part 21.

[0063] It is understandable that, in order to better position the first strip-shaped recess for the unsplit optoelectronic composite cable 20 and the split optical fiber portion 22, the size of the first strip-shaped recess corresponding to the unsplit optoelectronic composite cable 20 is consistent with the size of the unsplit optoelectronic composite cable 20, and the size of the first strip-shaped recess corresponding to the optical fiber portion 22 is consistent with the size of the optical fiber portion 22. In order to better position the second strip-shaped recess for the split cable portion 21, the size of the second strip-shaped recess is consistent with the size of the cable portion 21.

[0064] In some embodiments, see Figure 1 As shown, the diameter of the first opening is smaller than or equal to the diameter of the optoelectronic composite cable 20. When the diameter of the first opening is smaller than the diameter of the optoelectronic composite cable 20, the optoelectronic composite cable 20 has an interference fit within the first opening. The retractor is connected to the second opening to seal the second opening. Thus, when the optoelectronic composite cable 20 passes through the first opening to connect with the tube body 11, and the retractor is connected to the first connecting structure 111 to connect with the tube body 11, the optoelectronic composite cable 20 seals the first opening at one end of the tube body 11, and the retractor seals the second opening at one end of the tube body 11. This reduces the chance of liquid accidentally entering the tube body 11. Furthermore, the openings at both ends of the tube body 11 can be sealed without the need for additional insulating sealing materials, reducing the time and workload required for sealing.

[0065] Second aspect

[0066] Based on the same concept, this application also provides a geological information collection device 100. Figure 6As shown, the geological information acquisition equipment 100 includes: an optoelectronic composite cable 20, a tractor, and a connecting device 10 for connecting the optoelectronic composite cable and the tractor, which is any one of the above items; wherein the optoelectronic composite cable 20 includes: a fiber core 201, a steel tube layer 202, a first insulating layer 203, a cable layer 204, a second insulating layer 205, and a steel wire outer armor 206, the steel tube layer 202, the first insulating layer 203, the cable layer 204, the second insulating layer 205, and the steel wire outer armor 206 are sequentially wrapped around the fiber core 201, and the fiber core 201, the steel tube layer 202, and the first insulating layer 203 form the optical fiber part 22 of the optoelectronic composite cable 20, and the cable layer 204 and the second insulating layer 205 separated from the outside of the first insulating layer 203 form the cable part 21 of the optoelectronic composite cable 20.

[0067] Specifically, the number of the fiber cores 201 is not limited, for example: Figure 7 As shown, the number of fiber cores 201 is four.

[0068] In this embodiment, the optoelectronic composite cable 20 has both power supply and data collection and transmission functions, thereby eliminating the need for separate well logging instruments, thereby reducing the size of the geological information collection device 100 .

[0069] In some embodiments, see Figure 6 As shown, the geological information acquisition equipment 100 may further include: a clamping device 30, the clamping device 30 includes: a first clamping member and a second clamping member, the first clamping member and the second clamping member are docked with each other to clamp the optoelectronic composite cable 20 outside the connecting device 10 connecting the optoelectronic composite cable and the tractor between the first clamping member and the second clamping member.

[0070] Specifically, the first clamping member and the second clamping member may each have a corresponding strip-shaped recessed portion recessed away from each other, so that when the first clamping member and the second clamping member are joined together, a passage for the optical-electric composite cable 20 is formed. The first clamping member and the second clamping member may be joined together by welding, by screwing the first clamping member and the second clamping member together, or by other methods.

[0071] Here, the number of the clamping device 30 in the geological information collection device 100 can be one or more, for example: Figure 6 As shown, there are three clamping devices 30 , which are sequentially spaced apart along the extending direction of the optoelectronic composite cable 20 .

[0072] In this embodiment, the optoelectronic composite cable 20 on the outside of the tube body 11 can be clamped by the setting of the clamping device 30. When the geological information acquisition equipment 100 breaks the optoelectronic composite cable 20 when it is stuck, the optoelectronic composite cable 20 is clamped by the clamping device 30 and does not fall apart, thereby reducing the probability of secondary construction accidents caused by the spreading of the steel wire outer armor 206.

[0073] In some embodiments, see Figures 1 to 7 As shown, the geological information acquisition equipment 100 includes: a connecting device 10 connecting the optoelectronic composite cable and the tractor, an optoelectronic composite cable 20, a tractor and three clamping devices 30. The connecting device 10 connecting the optoelectronic composite cable and the tractor is respectively connected to one end of the optoelectronic composite cable 20 and the tractor.

[0074] The optical fiber composite cable 20 includes: a fiber core 201, a steel tube layer 202, a first insulating layer 203, a cable layer 204, a second insulating layer 205 and a steel wire outer armor 206. The steel tube layer 202, the first insulating layer 203, the cable layer 204, the second insulating layer 205 and the steel wire outer armor 206 are wrapped around the fiber core 201 in sequence, and the fiber core 201, the steel tube layer 202 and the first insulating layer 203 form the optical fiber part 22 of the optical fiber composite cable 20. The cable layer 204 and the second insulating layer 205 separated from the outside of the first insulating layer 203 form the cable part 21 of the optical fiber composite cable 20.

[0075] The connecting device 10 for connecting the optoelectronic composite cable and the tractor comprises: a tube body 11 , a sealing component 12 , a fixing component 13 and a branching component 14 .

[0076] The tube body 11 extends along a first direction, and the openings at both ends of the tube body 11 along the first direction are respectively a first opening and a second opening. The diameter of the first opening is equal to the diameter of the optoelectronic composite cable 20. The optoelectronic composite cable 20 is closed after passing through the first opening. A first connecting structure 111 for connecting a tractor is provided near the second opening of the tube body 11. The first connecting structure 111 is a circle of threads provided on the inner wall of the tube body 11. After the tractor is screwed to the first connecting structure 111, the first outlet 142 of the tube body 11 is closed.

[0077] The sealing assembly 12 is arranged in the tube body 11, and the sealing assembly 12 includes: a sealing cap 121, a sealing tube 122 and a sealing plug 123. The sealing tube 122 extends along a first direction, and the sealing cap 121 is screwed to one end of the sealing tube 122 close to the first opening. After the sealing cap 121 and the sealing tube 122 are screwed together, the two cooperate to form an extrusion cavity, and an extrusion structure 124 is provided in the extrusion cavity. The extrusion structure 124 respectively abuts the sealing cap 121 and the sealing tube 122, and at least part of the extrusion structure 124 is elastic. The sealing cap 121 and the extrusion structure 124 are respectively provided with a first through hole 1211 and a second through hole communicating with the interior of the sealing tube 122, and the sealing plug 123 is screwed to one end of the sealing tube 122 close to the second opening and closes the opening of the sealing tube 122 close to the second opening. The extrusion structure 124 includes: an elastic sleeve 1241 and a snap ring 1242. The elastic sleeve 1241 and the snap ring 1242 are distributed in the first through hole 1211 along the first direction. The elastic sleeve 1241 and the snap ring 1242 are respectively provided with a third through hole and a fourth through hole. The third through hole and the fourth through hole correspond to each other to cooperate to form a second through hole. The elastic sleeve 1241 is an elastic structural part. After the sealing cap 121 and the sealing plug 123 are respectively screwed to the sealing tube 122, the elastic sleeve 1241 is deformed to radially extrude the optical fiber part 22, and the elastic sleeve 1241 and the snap ring 1242 have opposite sides that abut the sealing cap 121 and the sealing tube 122 respectively. The inner diameter of the first through hole 1211 tends to increase along the first direction, the elastic sleeve 1241 abuts against the inner wall of the first through hole 1211, the inner diameter of the elastic sleeve 1241 tends to increase along the first direction, the outer diameter of the clamping ring 1242 remains unchanged along the first direction, the outer surface of the clamping ring 1242 close to one end of the sealing tube 122 has a raised outer edge, and the end of the clamping ring 1242 close to the elastic sleeve 1241 extends into the elastic sleeve 1241, and the outer edge abuts against the elastic sleeve 1241 and the sealing tube 122 on both sides along the first direction.

[0078] The fixing component 13 is arranged in the tube body 11 and is located between the first opening and the sealing component 12. The fixing component 13 includes: a fixed plug 131 and an abutment column 132. The fixed plug 131 is provided with a fifth through hole 1311 and a circle of sixth through holes 1312 surrounding the fifth through hole 1311. The inner diameter of the fixed plug 131 is equal to the diameter of the optoelectronic composite cable 20. The inner diameter of the first section of the tube body corresponding to the first opening of the tube body 11 tends to increase along the first direction. The fixed plug 131 abuts against a circle of inner wall of the first section of the tube body. The steel wire armor 206 on the outside of the optoelectronic composite cable 20 is bent in a direction opposite to the first direction and is divided into multiple bundles and respectively pass through multiple sixth through holes 1312 to abut against the inner wall of the first section of the tube body. The abutment column 132 passes through the tube body 11 and abuts against the fixed plug 131.

[0079] The branching assembly 14 is disposed within the tube body 11 and is located between the fixing assembly 13 and the sealing assembly 12. The branching assembly 14 is provided with an inlet 141, a first outlet 142, and a second outlet 143, which are connected in pairs. The inlet 141 is close to the fifth through hole 1311. The inlet 141 is used to pass through the unsplit portion of the optoelectronic composite cable 20. The first outlet 142 is used to pass through the split cable portion 21. The second outlet 143 is used to pass through the split optical fiber portion 22. The branching assembly 14 includes: a first branching piece 144, a second branching piece, and a fastener. The first branching piece 144 and the second branching piece are connected to form a branching cavity. The first branching piece 144 and the second branching piece are connected to each other at one end to form the inlet 141. The first branching piece 144 and the second branching piece are connected to each other at one side to form the first outlet 142. The first branching piece 144 and the second branching piece are connected to each other at the other end to form the second outlet 143. The fasteners are screwed to the first branching piece 144 and the second branching piece respectively.

[0080] Here, the optoelectronic composite cable 20 passes through the tube body 11 from the first opening of the tube body 11. The optoelectronic composite cable 20 passing through the tube body 11 is divided into a cable portion 21 and an optical fiber portion 22. The cable portion 21 is connected to a tractor connected to the first connecting structure 111 to power the tractor. The optical fiber portion 22 passes through the first through hole 1211 and the second through hole and extends into the sealing tube 122 so that the end of the optical fiber portion 22 is sealed in the sealing assembly 12.

[0081] The three clamping devices 30 are respectively connected to the optical fiber composite cable 20 outside the connecting device 10 connecting the optical fiber composite cable and the tractor, and the three clamping devices 30 are arranged in sequence along the extension direction of the optical fiber composite cable 20. The clamping devices 30 include: a first clamping member, a second clamping member, and a screw. The first clamping member and the second clamping member are connected to each other to clamp the optical fiber composite cable 20 outside the connecting device 10 connecting the optical fiber composite cable and the tractor between the first clamping member and the second clamping member. The screws are respectively screwed to the first clamping member and the second clamping member to achieve the connection between the first clamping member and the second clamping member.

[0082] See also Figure 6As shown, an assembly method is as follows: a. insert the optical fiber composite cable 20 from the first opening and pass it out from the second opening, then pass the optical fiber composite cable 20 that passes through the second opening through the fifth through hole 1311 of the fixed plug 131, and split the steel wire armor 206 on the outside of the optical fiber composite cable 20 into multiple bundles to pass through the sixth through hole 1312 respectively for bending, after the optical fiber composite cable 20 bends the steel wire armor 206, the second insulating layer 205 is exposed; b. pass the non-insulating layer 206 from the fifth through hole 1311 The second insulating layer 205 and the cable layer 204 on the outer side of the optical fiber composite cable 20 of the steel wire armor 206 are separated to form the cable portion 21, and then the optical fiber composite cable 20 without the steel wire armor 206 is clamped by the first branching piece 144 and the second branching piece respectively, and the first branching piece 144 and the second branching piece are screwed together by fasteners to achieve the docking of the first branching piece 144 and the second branching piece. After the wires are butted together, the optical fiber composite cable 20 without the steel wire armor 206 is formed. The optical fiber portion 22 is passed through the second opening 143 after passing through the cable portion 21 from the inlet 141; the optical fiber portion 22 is passed through the second opening 143; c. The optical fiber portion 22 passed through the second opening 143 is passed into the sealing assembly 12 for sealing; d. The optical fiber composite cable 20 is pulled in a direction opposite to the first direction so that the fixed plug 131, the branching assembly 14 and the sealing assembly 12 are pulled into the tube body 11 until the optical fiber portion 22 passes through the second opening 143; Until the fixed plug 131 and the bent steel wire outer armor 206 are both in contact with the first section of the tube body, the abutment column 132 is then passed through the tube body 11 and abuts the first section of the tube body; e. Three clamping devices 30 are clamped on the outer surface of one end of the connecting device 10 that connects the optoelectronic composite cable 20 to the tractor. After the screws of each clamping device 30 are connected, the optoelectronic composite cable 20 is pulled relative to each clamping device 30 to ensure that each clamping device 30 clamps the optoelectronic composite cable 20. Here, when the relative pulling causes relative displacement between the clamping device 30 and the optoelectronic composite cable 20, the screws can be tightened again or the clamping device 30 can be replaced. The inner diameter of the clamping channel of the replaced clamping device 30 used to clamp the optoelectronic composite cable 20 is smaller than that of the replaced one.

[0083] Here, the optoelectronic composite cable 20 located in the sealing tube 122 can be pulled out and knotted before the sealing plug 123 is connected, and then pushed back into the sealing tube 122 to improve the sealing between the optoelectronic composite cable 20 and the sealing assembly 12.

[0084] It should be noted that the connection device for connecting the optoelectronic composite cable and the tractor in the geological information collection equipment provided in the embodiments of this application is similar to the description of the connection device for connecting the optoelectronic composite cable and the tractor described above, and has similar beneficial effects as the aforementioned connection device for connecting the optoelectronic composite cable and the tractor. For technical details not disclosed in the embodiments of the geological information collection equipment of this application, please refer to the description of the connection device for connecting the optoelectronic composite cable and the tractor in the embodiments of this application, and will not be repeated here.

[0085] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A connecting device for connecting an optoelectronic composite cable and a tractor, characterized in that: include: a tube body, the tube body extending along a first direction, the openings at both ends of the tube body along the first direction being respectively a first opening and a second opening, the first opening being used for inserting the optoelectronic composite cable, and the second opening being used for connecting the retractor; and, a sealing assembly, the sealing assembly being arranged in the tube body, the sealing assembly comprising: a sealing cap, a sealing tube and a sealing plug, the sealing tube extending along the first direction, the sealing cap being screwed to one end of the sealing tube close to the first opening, the sealing cap and the sealing tube being screwed together and cooperating to form an extrusion cavity, an extrusion structure being arranged in the extrusion cavity, the extrusion structure respectively abutting against an inner wall of the sealing cap and the sealing tube, at least a portion of the extrusion structure being elastic, the sealing cap and the extrusion structure respectively being provided with a first through hole and a second through hole communicating with the interior of the sealing tube, the sealing plug being screwed to one end of the sealing tube close to the second opening and closing the opening of the sealing tube close to the second opening; The optoelectronic composite cable inserted from the first opening is split into a cable portion and an optical fiber portion. The cable portion is connected to the retractor at the second opening. The optical fiber portion passes through the first through hole and the second through hole and extends into the sealing tube. The optical fiber portions corresponding to both sides of the second through hole are deformed to close the second through hole during the process of screwing the sealing cap to the sealing tube and / or screwing the sealing plug to the sealing tube. a fixing assembly disposed within the tube body and located between the first opening and the sealing assembly, the fixing assembly comprising: a fixing plug and an abutting post, the fixing plug abutting a circle of the inner wall of the tube body, the fixing plug defining a fifth through hole, the radial dimension of the fifth through hole being less than or equal to the diameter of the optoelectronic composite cable, the abutting post passing through the tube body abutting the fixing plug; The optoelectronic composite cable passed through the first opening passes through the fifth through hole, and the steel wire armor on the outer surface of the optoelectronic composite cable passing through the fifth through hole is bent in a direction opposite to the first direction and abuts against the inner wall of the tube body.

2. The connecting device for connecting an optoelectronic composite cable and a tractor according to claim 1, characterized in that: The extrusion structure includes: an elastic sleeve and a snap ring, the elastic sleeve and the snap ring are distributed in the first through hole along the first direction, the elastic sleeve and the snap ring are respectively provided with a third through hole and a fourth through hole, the third through hole and the fourth through hole correspond to each other to cooperate to form the second through hole, the elastic sleeve is an elastic structural component, and the elasticity of the snap ring is less than that of the elastic sleeve; Among them, after the sealing cap and the sealing plug are respectively screwed to the sealing tube, the elastic sleeve is deformed to radially squeeze the optical fiber part, and the two sides of the elastic sleeve and the clamping ring facing away from each other respectively abut the sealing cap and the sealing tube.

3. The connecting device for connecting an optoelectronic composite cable and a tractor according to claim 2, characterized in that: The inner diameter of the first through hole increases along the first direction; The elastic sleeve abuts against the inner wall of the first through hole, and the inner diameter of the elastic sleeve increases along the first direction; The outer diameter of the clamping ring remains unchanged along the first direction, the outer surface of the clamping ring close to one end of the sealing tube is raised with a circle of outer edge, and the end of the clamping ring close to the elastic sleeve extends into the elastic sleeve, and the outer edge of the circle abuts against the elastic sleeve and the sealing tube on both sides along the first direction.

4. The connecting device for connecting an optoelectronic composite cable and a tractor according to claim 1, characterized in that: The inner diameter of the first section of the tube body corresponding to one end of the first opening increases along the first direction; The fixed plug abuts against a circle of the inner wall of the first section of the tube body. The fixed plug is provided with a plurality of sixth through holes around the fifth through hole, and the steel wire outer armor is bent into a plurality of bundles and respectively passes through the plurality of sixth through holes to abut against the inner wall of the first section of the tube body.

5. The connecting device for connecting an optoelectronic composite cable and a tractor according to claim 1, characterized in that: Also includes: A branching assembly is provided in the tube body and between the fixing assembly and the sealing assembly. The branching assembly is provided with an inlet, a first outlet and a second outlet that are connected in pairs. The inlet is close to the fifth through hole. The inlet is used to pass through the optoelectronic composite cable, the first outlet is used to pass through the cable part, and the second outlet is used to pass through the optical fiber part.

6. The connecting device for connecting an optoelectronic composite cable and a tractor according to claim 5, characterized in that: The line junction assembly includes: a first line junction component, a second line junction component and a fastener. The first line junction component and the second line junction component are connected to form a line junction cavity. The ends of the first line junction component and the second line junction component that are connected to each other cooperate to form the inlet. The sides of the first line junction component and the second line junction component that are connected to each other cooperate to form the first outlet. The other ends of the first line junction component and the second line junction component that are connected to each other cooperate to form the second outlet. The fastener can detachably connect the first line junction component and the second line junction component.

7. The connecting device for connecting an optoelectronic composite cable and a tractor according to claim 1, characterized in that: The diameter of the first opening is smaller than or equal to the diameter of the optoelectronic composite cable. When the diameter of the first opening is smaller than the diameter of the optoelectronic composite cable, the optoelectronic composite cable is interference-fitted into the first opening. The tractor closes the second opening after being connected to the second opening.

8. A geological information collection device, characterized in that: include: An optoelectronic composite cable, a tractor, and a connecting device for connecting the optoelectronic composite cable and the tractor according to any one of claims 1 to 7; The optoelectronic composite cable comprises: a fiber core, a steel tube layer, a first insulating layer, a cable layer, a second insulating layer and a steel wire outer armor. The steel tube layer, the first insulating layer, the cable layer, the second insulating layer and the steel wire outer armor are sequentially wrapped around the fiber core, and the fiber core, the steel tube layer and the first insulating layer form the optical fiber part of the optoelectronic composite cable. The cable layer and the second insulating layer separated from the outside of the first insulating layer form the cable part of the optoelectronic composite cable.

9. The geological information collection device according to claim 8, characterized in that: Also includes: The clamping device includes: a first clamping member and a second clamping member, the first clamping member and the second clamping member are butted against each other to clamp the optoelectronic composite cable outside the connecting device connecting the optoelectronic composite cable and the tractor between the first clamping member and the second clamping member.

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