An optoelectronic separation device suitable for layer-twisted and center-tube optical fiber composite phase lines

Abstract

The present invention discloses an optoelectronic separation device adapted to layer-stranded and center-tube optical fiber composite phase lines, which comprises an outer shell and a center tube assembly, wherein the center tube assembly comprises a center separation sleeve, a fastening assembly and a first sealing assembly, wherein an optical unit perforation is arranged in the middle of the center separation sleeve, and one end of the center separation sleeve is an insertion separation portion, wherein the optical unit located at the center of the optical fiber composite phase line passes through the optical unit perforation, the fastening assembly is arranged in the middle of the center separation sleeve, the fastening assembly is used to fix the strand located at the outer layer of the end of the optical fiber composite phase line on the center separation sleeve, the first sealing assembly is arranged at the other end of the center separation sleeve, and the optical unit passes through the first sealing assembly, the first sealing assembly is used to seal the optical unit at the center, and the middle of the outer shell is provided with a center optical unit lead-out hole for the optical unit located at the center to pass out. The present invention realizes compatibility with optical fiber composite phase lines containing optical units located at the center, and has good compatibility.

Description

Technical Field

[0001] The invention relates to a photoelectric separation device suitable for layer-twisted and center-tube optical fiber composite phase lines. Background Art

[0002] Optical Phase Conductor (OPPC) combines optical units in the phase line, which can transmit current and optical signals at the same time. When the power transmission line is set up, the optical fiber link is also built, which has the advantages of saving time, labor and materials.

[0003] In the structure of OPPC, the strand 76 in the middle is an aluminum-clad steel wire or a steel wire, which constitutes the reinforcing core of the optical fiber composite phase line 7; the strand 73 in the outer layer is an aluminum wire, which constitutes the conductor of the optical fiber composite phase line 7 and is wrapped on the reinforcing core; the optical unit can be located in different positions according to design requirements. Fig.11 The cross-sectional structure of the first optical fiber composite phase line is shown, in which the optical unit is arranged in the conductor and extends in a spiral manner along with the conductor; Fig.12 The cross-sectional structure of the second optical fiber composite phase line is shown, and the optical unit is arranged on the outer layer of the reinforcing core and extends in a spiral manner following the outer layer of the reinforcing core; Fig.13 In the cross-sectional structure of the third optical fiber composite phase line shown, the optical unit is arranged in the center and extends in a straight line instead of a spiral. The optical unit of this structure has the advantage of sensing the cable stress relatively accurately. Therefore, when it is necessary to use the optical unit to measure the stress of the line under conditions such as ice, storms, and drastic temperature changes, the optical unit of the optical fiber composite phase line mostly adopts the third structure mentioned above. Of course, the optical fiber composite phase line can also be composited with two or three optical units.

[0004] The optical unit lead-out connector of an OPPC optical cable disclosed in the Chinese patent application number 201620975314.8 can be well applied to the optical fiber composite phase lines of the first and second structures mentioned above, even when two optical units are twisted in the optical fiber composite phase line. However, it cannot be applied to the optical fiber composite phase line of the third structure mentioned above. Furthermore, in the case where the optical fiber composite phase lines of the third, first and second structures mentioned above are provided at the same time, that is, when three optical units coexist, it cannot be used directly.

[0005] For another example, the optical fiber composite phase line photoelectric separation device that can be used for live working disclosed in Chinese patent application number 201120185980.9 cannot be applied to the optical fiber composite phase line of the third structure mentioned above.

[0006] In order to meet the application requirements on site, it is necessary to design a photoelectric separation device with wide adaptability. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a photoelectric separation device which is suitable for layer-stranded and center-tube optical fiber composite phase lines and has good compatibility.

[0008] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0009] An optoelectronic separation device suitable for layer-twisted and center-tube optical fiber composite phase lines, characterized in that it includes an outer shell and a center tube assembly arranged in the outer shell, the center tube assembly includes a center separation sleeve, a fastening assembly and a first sealing assembly, a light unit through-hole is provided in the middle of the center separation sleeve, one end of the center separation sleeve is an insertion and separation portion for inserting the end of the optical fiber composite phase line to separate the central light unit from other strands, wherein the light unit located at the center of the optical fiber composite phase line passes through the light unit through the light unit through-hole, the fastening assembly is arranged in the middle of the center separation sleeve, the fastening assembly is used to fix the strands located at the outer layer of the end of the optical fiber composite phase line on the center separation sleeve, the first sealing assembly is arranged at the other end of the center separation sleeve, and the light unit passes through the first sealing assembly, the first sealing assembly is used to seal the central light unit, and a central light unit lead-out hole is provided in the middle of the outer shell for the central light unit to pass out.

[0010] Furthermore, the side of the outer shell is provided with a side light unit lead-out hole for passing the light unit out from the side, the inner end of the side light unit lead-out hole extends to the side of the insertion and separation part of the central separation sleeve, and a second sealing component is provided at the outer end of the side light unit lead-out hole, and the second sealing component is used to seal the side light unit.

[0011] Furthermore, the outer shell includes a base and an upper cover covering the base, the side light unit lead-out hole is arranged on the base, the inner surface of the upper cover is provided with a first half-side fixing groove structure, and the covering surface of the base is provided with a second half-side fixing groove structure. The center separation sleeve is fastened in an interference fit manner in a fixed cavity formed by the first half-side fixing groove structure and the second half-side fixing groove structure, and a center light unit lead-out hole is formed at one end of the fixed cavity, and an optical fiber composite phase line entry hole is formed at the other end.

[0012] Furthermore, the outer shell includes two bases covering each other, and side light unit lead-out holes are respectively provided on the bases. A second half-side fixing groove structure is provided on the covering surface of the bases. The center separation sleeve is fastened in a fixed cavity formed by the two second half-side fixing groove structures. A center light unit lead-out hole is formed at one end of the fixed cavity, and an optical fiber composite phase line entry hole is formed at the other end.

[0013] Furthermore, the fastening assembly includes a clamping hoop, a first conical surface is provided in the middle of the central separation sleeve, the diameter of the first conical surface gradually decreases from one end close to the insertion separation part to the other end away from the insertion separation part, and a second conical surface adapted to the first conical surface is provided on the wall of the middle hole of the clamping hoop, and the outer strands of the end of the optical fiber composite phase line are clamped between the first conical surface and the second conical surface.

[0014] Furthermore, the fastening assembly also includes a conical washer sleeved on the central separation sleeve, the conical washer is cushioned between the strands passing through the compression hoop and the surface of the central separation sleeve, and is close to the first conical surface.

[0015] Furthermore, a bayonet is provided at the end of the insertion separation portion, and part of the strands of the optical fiber composite phase line are embedded in the bayonet.

[0016] Furthermore, a limiting boss is provided on the outer surface of the insertion and separation portion, and the limiting boss is clamped between two strands located in the outer layer at the end of the optical fiber composite phase line.

[0017] Furthermore, the first sealing assembly includes a first fastening threaded column, a first soft rubber plug and an end column fixed at the end of the central separation sleeve, the end of the end column away from the central separation sleeve is provided with a first water-blocking sealing cavity, the port of the first water-blocking sealing cavity is provided with an internal thread, the first soft rubber plug is located in the first water-blocking sealing cavity, the first fastening threaded column is threadedly connected at the port of the first water-blocking sealing cavity, and a connected central light unit through-hole for the central light unit to pass through is provided between the end column, the first soft rubber plug and the first fastening threaded column, the first soft rubber plug is compressed by the first fastening threaded column so that the first soft rubber plug hugs the light unit and the outer wall is close to the inner wall of the first water-blocking sealing cavity.

[0018] Furthermore, the second sealing assembly includes a second fastening threaded column and a second soft rubber plug, a second water-blocking sealing cavity is provided at the outer end of the side light unit lead-out hole, an internal thread is also provided at the port of the second water-blocking sealing cavity, the second soft rubber plug is located in the second water-blocking sealing cavity, the second fastening threaded column is threadedly connected at the port of the second water-blocking sealing cavity, a connected side light unit outlet hole for the side light unit to pass through is provided between the second soft rubber plug and the second fastening threaded column, the second soft rubber plug is compressed by the second fastening threaded column so that the second soft rubber plug hugs the light unit and the outer wall is close to the inner wall of the second water-blocking sealing cavity.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention arranges a central tube assembly in the outer shell, separates the central optical unit from other strands through the central separation sleeve of the central tube assembly, and fixes the outer strands through the fastening assembly, so that the relative position of the central tube assembly and the optical fiber composite phase line is fixed, and the end through which the central optical unit passes is sealed by a first sealing assembly, so that the optical fiber composite phase line including the central optical unit can be photoelectrically separated (that is, the third optical fiber composite phase line structure mentioned in the background technology is photoelectrically separated), thereby achieving compatibility with the optical fiber composite phase line including the central optical unit.

[0021] 2. The outer shell may also be provided with a side light unit lead-out hole, so that the present invention can also be applied to the optoelectronic separation of the first and second optical fiber composite phase line structures mentioned in the background technology, and thus can be applied to the three optical fiber composite phase line structures mentioned in the background technology, with better compatibility.

[0022] 3. When the outer shell includes a base and an upper cover, the present invention can separate and lead out the central light unit and a side light unit. When the outer shell includes two bases, the two side light units can be led out. It can be seen that it has good compatibility.

[0023] 4. The present invention also provides a bayonet at the end of the insertion separation portion, through which part of the strands are clamped, thereby fixing the relative position of the central separation sleeve between the optical fiber composite phase lines, and better preventing the central separation sleeve from rotating during installation and use.

[0024] 5. The present invention also provides a limiting boss, which can prevent the outer strands at the end of the optical fiber composite phase line from rotating relative to the central separation sleeve, and prevent the outer strands at the end of the optical fiber composite phase line from becoming loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective schematic diagram of a photoelectric separation device according to a first embodiment of the present invention;

[0026] Figure 2 is a cross-sectional schematic diagram of a photoelectric separation device according to a first embodiment of the present invention;

[0027] Figure 3 is a cross-sectional schematic diagram of the photoelectric separation device of the first embodiment of the present invention when it is installed in the optical fiber composite phase line;

[0028] Figure 4 is an exploded schematic diagram of the photoelectric separation device according to the first embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of the assembly structure of the central tube assembly and the optical fiber composite phase line of the photoelectric separation device of the first embodiment of the present invention;

[0030] Figure 6 It is a structural schematic diagram of a central separation sleeve and a compression hoop of a photoelectric separation device according to a first embodiment of the present invention;

[0031] Figure 7 It is a schematic diagram of the assembly structure of the central separation sleeve, the compression hoop and the optical fiber composite phase line of the photoelectric separation device of the first embodiment of the present invention;

[0032] Figure 8 It is a cross-sectional schematic diagram of the photoelectric separation device of the first embodiment of the present invention performing photoelectric separation on the optical fiber composite phase line of the optical unit provided only with the side edge through its outer shell;

[0033] Fig. 9 is a cross-sectional schematic diagram of a photoelectric separation device according to a second embodiment of the present invention;

[0034] Fig.10 is a cross-sectional schematic diagram of a photoelectric separation device according to a third embodiment of the present invention;

[0035] Fig.11 It is a schematic cross-sectional view of the first optical fiber composite phase line;

[0036] Fig.12 is a schematic cross-sectional view of the second optical fiber composite phase line;

[0037] Fig.13 It is a schematic cross-sectional view of the third type of optical fiber composite phase line.

[0038] Meaning of reference numerals in the figure:

[0039] 1-center tube assembly; 11-center separation sleeve; 111-first conical surface; 112-limiting boss; 113-light unit perforation; 114-insertion separation portion; 115-bayonet; 116-threaded column; 12-tightening hoop; 121-second conical surface; 13-conical washer; 2-base; 21-second half-side fixing groove structure; 22-side light unit lead-out hole; 23-drain port; 24-second water-blocking sealing cavity; 3-upper cover; 31-first half-side fixing groove structure; 4-first sealing assembly; 41-end column; 411-first water-blocking sealing cavity; 412-threaded hole; 413-limiting convex ring; 42-first light unit outer sheath; 43- The first hard washer; 44-the first fastening threaded column; 45-the first soft rubber plug; 46-the central light unit outlet hole; 5-the second sealing assembly; 51-the second soft rubber plug; 52-the second light unit outer sheath; 53-the second hard washer; 54-the second fastening threaded column; 55-the side photoelectric unit outlet hole; 6-the fixing cavity; 61-the optical fiber composite phase line entry hole; 62-the central light unit outlet hole; 63-the reserved space; 64-the annular groove; 7-the optical fiber composite phase line; 71-the central light unit; 72-the side light unit; 73-the outer layer of the strands; 74-the strands passing through the clamp; 75-the bending part; 76-the middle strands; 8-the stepped aluminum tube. DETAILED DESCRIPTION

[0040] The present invention is further described below in conjunction with embodiments.

[0041] Embodiment 1:

[0042] like Figures 1 to 7 The photoelectric separation device of the present embodiment is suitable for layer-twisted and central tube optical fiber composite phase line, which includes an outer shell and a central tube assembly 1 arranged in the outer shell. (The outer strand 73 of the optical fiber composite phase line of the present embodiment is an aluminum wire, i.e., a conductor, and the middle strand 76 is an aluminum-clad steel wire or a steel wire, i.e., a reinforcing core, all of which are extended in a spiral manner, i.e., layer-twisted. Since the layer-twisted structure is a conventional structure, it is not shown in the figure.)

[0043] like Figure 4 As shown, the central tube assembly 1 includes a central separation sleeve 11, a fastening assembly and a first sealing assembly 4. An optical unit through-hole 113 is provided in the middle of the central separation sleeve 11, and one end of the central separation sleeve 11 is an insertion separation portion 114 for inserting the end of the optical fiber composite phase line 7 to separate the central optical unit from other strands, wherein the optical unit 71 located at the center of the optical fiber composite phase line 7 passes through the optical unit through-hole, and the size of the optical unit through-hole 113 is adapted to the size of the optical unit.

[0044] The fastening assembly includes a clamping hoop 12 and a conical washer 13. The clamping hoop 12 is in the shape of a circular sleeve. A first conical surface 111 is provided in the middle of the central separation sleeve 11. The diameter of the first conical surface 111 gradually decreases from the end close to the insertion separation portion 114 to the end away from the insertion separation portion 114. A second conical surface 121 adapted to the first conical surface 111 is provided on the hole wall of the middle hole of the clamping hoop 12. The maximum diameter of the second conical surface 121 is slightly larger than the minimum diameter of the first conical surface 111 at the corresponding position plus the diameter of two strands. Figure 5 As shown, the strands 73 located at the outer layer of the end of the optical fiber composite phase line are clamped between the first conical surface 111 and the second conical surface 121, so that the fastening assembly is arranged in the middle of the central separation sleeve 11, and the strands 73 located at the outer layer of the end of the optical fiber composite phase line are fixed to the central separation sleeve 11 through the fastening assembly.

[0045] The conical washer 13 is sleeved on the center separation sleeve 11, and the conical washer 13 is cushioned between the strand 74 passing through the clamping hoop and the surface of the center separation sleeve 11. The conical washer 13 is close to the first conical surface 111, so that the part of the strand 74 passing through the clamping hoop at the end with a smaller diameter close to the second conical surface 121 forms a curved portion 75 that bends outward, thereby preventing the clamping hoop 12 from loosening and better locking the strand.

[0046] The first sealing assembly 4 includes a first fastening threaded column 44, a first soft rubber plug 45 and an end column 41. A threaded hole 412 is provided at one end of the end column 41. The end column 41 is fixed to the threaded column 116 at the end of the center separation sleeve 11 in a threaded connection through the threaded hole. The end surface of the end column 41 facing the first conical surface 111 abuts against the conical washer 13, pushing the conical washer 13 toward the clamping hoop 12, thereby restricting the conical washer 13 on the center separation sleeve 11.

[0047] The end of the end column 41 away from the center separation sleeve 11 is provided with a first water-blocking sealing cavity 411, and an internal thread is provided at the port of the first water-blocking sealing cavity 411. The first soft rubber plug 45 is located in the first water-blocking sealing cavity 411, and the size of the first soft rubber plug 45 is adapted to the size of the first water-blocking sealing cavity 411. The first fastening threaded column 44 is threadedly connected at the port of the first water-blocking sealing cavity 411, and a central light unit through-hole 46 for the central light unit to pass through is provided in the middle of the end column 41, the first soft rubber plug 45 and the first fastening threaded column 44. After the light unit passes through the central light unit through-hole 46, the first fastening threaded column 44 is tightened inward, and the first soft rubber plug 45 can be compressed by the first fastening threaded column 44, so that the first soft rubber plug 45 can hold the light unit tightly, and the outer wall of the first soft rubber plug 45 is close to the inner wall of the first water-blocking sealing cavity 411, so that the central light unit is sealed by the first soft rubber plug 45.

[0048] In order to better protect the optical unit, the present embodiment further provides a first optical unit outer sheath 42, which is passed through the central optical unit outlet hole of the first fastening threaded column 44, and a flange head is provided at the inner end of the first optical unit outer sheath, and a first hard washer 43 is provided between the flange head and the inner end surface of the first fastening threaded column 44, and the outer end of the first optical unit outer sheath extends outward for a certain distance, and the first optical unit outer sheath 42 is sleeved on the optical unit.

[0049] The outer shell of this embodiment includes a base 2 and an upper cover 3 covering the base 2. The upper cover 3 is fixed to the base 2 by ten screws. The base 2 is provided with a side light unit lead-out hole 22. The inner surface of the upper cover 3 is provided with a first half side fixing groove structure 31. The covering surface of the base 2 is provided with a second half side fixing groove structure 21. Figure 2 As shown, the first half-side fixed groove structure 31 and the second half-side fixed groove structure 21 are combined into a fixed cavity 6. The diameter of the fixed cavity 6 is slightly smaller than the outer diameter of the central tube assembly 1. The central tube assembly 1 is fastened in the fixed cavity 6 in an interference fit manner. A reserved space 63 is provided at the position of the fixed cavity 6 corresponding to the clamping hoop 12. The reserved space 63 is larger than the clamping hoop 12. After the first half-side fixed groove structure 31 and the second half-side fixed groove structure 21 clamp the central tube assembly 1, there is still a certain gap between the clamping hoop 12 and the reserved space 63. A central optical unit lead-out hole 62 is formed at one end of the fixed cavity 6, and an optical fiber composite phase line entry hole 61 is formed at the other end. When in use, Figure 3 As shown, the optical fiber composite phase line 7 passes through the optical fiber composite phase line passing hole 61 , and the separated central optical unit 71 passes through the central optical unit leading-out hole 62 .

[0050] The inner end of the side light unit outlet hole 22 extends to the side of the insertion separation portion 114 of the central separation sleeve 11 , and a second sealing component 5 is provided at the outer end of the side light unit outlet hole 22 .

[0051] The second sealing assembly 5 includes a second fastening threaded column 54 and a second soft rubber plug 51. A second water-blocking sealing cavity 24 is provided at the outer end of the side light unit lead-out hole 22. An internal thread is also provided at the port of the second water-blocking sealing cavity 24. The second soft rubber plug 51 is located in the second water-blocking sealing cavity 24. The size of the second soft rubber plug 51 is adapted to the size of the second water-blocking sealing cavity 24. The second fastening threaded column 54 is threadedly connected at the port of the second water-blocking sealing cavity 24. A connected side photoelectric unit through-hole 55 for the side light unit to pass through is provided between the second soft rubber plug 51 and the second fastening threaded column 54. The diameter of the side photoelectric unit through-hole 55 is adapted to the diameter of the light unit. When the side optical unit 72 passes through the side photoelectric unit through-hole 55, the second fastening threaded column 54 is tightened inward, and the second fastening threaded column 54 compresses the second soft rubber plug 51, so that the second soft rubber plug 51 hugs the optical unit, and the outer wall of the second soft rubber plug 51 is close to the inner wall of the second water-blocking sealing cavity 24, so that the side optical unit is sealed by the second soft rubber plug 51. The second sealing assembly 5 is also provided with a second optical unit outer sheath 52 and a second hard gasket 53.

[0052] In this embodiment, a limiting protrusion 413 is provided on the outer wall of the end column 41, and an annular groove 64 is correspondingly provided in the fixing cavity 6. The limiting protrusion 413 is fitted into the annular groove 64, so as to better fix the central tube assembly 1 in the outer shell.

[0053] In order to better prevent the center separation sleeve 11 from rotating during installation and use, Figure 6 and Figure 7 As shown, in this embodiment, a bayonet 115 is opened at the end of the insertion separation part 114, and part of the strands of the optical fiber composite phase line 7 corresponding to the bayonet position are embedded in the bayonet 115. Of course, the remaining strands interfering with the insertion separation part 114 will be cut off.

[0054] In this embodiment, a limiting boss 112 is provided on the outer surface of the insertion separation portion 114. The limiting boss 112 is stuck between two strands located in the outer layer at the end of the optical fiber composite phase line. In actual operation, the strands facing the limiting boss 112 need to be cut off so that the limiting boss 112 can be stuck in the strands of the outer layer. Since the strands 73 of the outer layer extend in a spiral manner, the limiting boss 112 can prevent the strands of the outer layer from loosening.

[0055] In order to avoid water accumulation, a drain port 23 connected to the outlet hole of the side light unit is provided at the bottom of the base 2 for draining the accumulated water.

[0056] The optoelectronic separation device of this embodiment is applicable to an optical fiber composite phase line with an optical unit in the center, an optical fiber composite phase line with an optical unit in the side, and an optical fiber composite phase line with an optical unit in the center and on the side.

[0057] During installation, cut the strands at the end of the optical fiber composite phase line. Figure 7 As shown, a portion of the strands is reserved at the position corresponding to the bayonet 115, and the remaining strands interfering with the insertion separation portion 114 are cut off, and the portion of the outer strands 73 corresponding to the limiting boss 112 is also cut off. In actual installation, the outer strands 73 cannot all pass through the clamping hoop 12, so the outer strands 73 also need to be selectively cut, but as many outer strands 73 as possible need to be retained, and then, the insertion separation portion 114 of the central separation sleeve 11 is correspondingly inserted, and the optical unit 71 located in the center passes through the optical unit perforation 113, and the reserved portion The split wires are correspondingly embedded in the bayonet 115, and the limiting boss 112 is correspondingly stuck between the two wires. The outer layer of the wire 73 covers the first conical surface 11 and is inserted into the clamping hoop 12. The wire 74 passing through the clamping hoop can be pulled and rolled up with pliers. If necessary, a screwdriver is used to hold the clamping hoop against the clamping hoop, and the clamping hoop is knocked tight with a hammer. After that, the conical washer 13 is put on, the end column 41 is screwed on, and the conical washer 13 is pressed against the clamping hoop 12, and then the first fastening threaded column 44 and the first soft rubber plug 45 are installed. Of course, the light unit 71 located in the center passes through the center light unit exit hole. After the central tube assembly 1 is installed, the base 2 and the upper cover 3 are correspondingly put on to complete the installation.

[0058] When the optical fiber composite phase line 7 has a side optical unit 72 that needs to be led out, the central tube assembly 1 is still installed according to the above structure, that is, part of the strands corresponding to the side optical unit 72 are cut off, and the side optical unit 72 is pulled out to the side from the insertion separation portion 114. When the base 2 is put on, the side optical unit 72 passes through the side optical unit lead-out hole 22.

[0059] The optoelectronic separation device of this embodiment can also be applied to a fiber composite phase line with only one optical unit on the side. In this case, the side optical unit only needs to be passed through the side optical unit lead-out hole in the above manner.

[0060] When used in a fiber composite phase line with only one optical unit on the side, Figure 8 As shown, the central tube assembly 1 can be removed, the outer layer of the strands 73 (aluminum wire) outside the middle strands 76 (reinforced core) can be cut off, the side optical unit 72 can be pulled out from the side, and passed through the side optical unit lead-out hole 22, and the vacant position after the optical unit is pulled out needs to be filled with an equivalent strand, and the installation is performed in a manner similar to that in an optical unit lead-out connector of an OPPC optical cable disclosed in Chinese patent application No. 201620975314.8. After that, a stepped aluminum tube 8 is put on the end of the middle strand 76, and the stepped aluminum tube is pressed on the middle strand 76 by a pressing clamp, and the steps of the stepped aluminum tube 8 are against the end face of the outer shell, thereby fixing the optical fiber composite phase line 7.

[0061] Embodiment 2:

[0062] The photoelectric separation device of the second embodiment is different from that of the first embodiment in that the outer shell is Fig. 9 As shown, the outer shell of the second embodiment includes two bases 2 covering each other, and the structure of the two bases 2 is the same as that of the base in the first embodiment. The two bases 2 cover each other and form a fixed cavity 6 through two second half-side fixed groove structures 21.

[0063] This embodiment is applicable to a fiber composite phase line with two optical units on the side. During installation, the installation method of the central tube assembly is basically the same as that of the first embodiment. The two side optical units are respectively pulled out from both sides, and the two bases 2 are covered and fixed to each other. The two side optical units 72 are respectively passed through the side optical unit lead-out holes 22.

[0064] Embodiment three:

[0065] The photoelectric separation device of the third embodiment is different from that of the first embodiment in that the outer shell is Fig.10 As shown, the outer shell of the third embodiment includes two upper covers 3, and the structures of the two upper covers 3 are the same as those of the upper covers 3 in the first embodiment. The two upper covers 3 cover each other to form a fixed cavity 6 through two first half-side fixed groove structures 31.

[0066] This embodiment is applicable to an optical fiber composite phase line in which an optical unit is only provided at the center, which can save materials and simplify the structure.

[0067] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. An optoelectronic separation device for layer-stranded and center-tube optical fiber composite phase lines, characterized in that: It comprises an outer shell and a center tube assembly arranged in the outer shell, the center tube assembly comprises a center separation sleeve, a fastening assembly and a first sealing assembly, a light unit through-hole penetrating the center separation sleeve is arranged in the middle of the center separation sleeve, one end of the center separation sleeve is an insertion and separation portion for inserting the end of the optical fiber composite phase line to separate the center light unit from other strands, wherein the light unit located at the center of the optical fiber composite phase line passes through the light unit through-hole, the fastening assembly is arranged in the middle of the center separation sleeve, the fastening assembly is used to fix the strands located at the outer layer of the end of the optical fiber composite phase line on the center separation sleeve, the first sealing assembly is arranged at the other end of the center separation sleeve, and the light unit passes through the first sealing assembly, the first sealing assembly is used to seal the center light unit, and a center light unit lead-out hole for the center light unit to pass out is arranged in the middle of the outer shell; The fastening assembly includes a clamping hoop, a first conical surface is provided in the middle of the central separation sleeve, the diameter of the first conical surface gradually decreases from one end close to the insertion separation portion to the other end away from the insertion separation portion, a second conical surface adapted to the first conical surface is provided on the hole wall of the middle hole of the clamping hoop, and the strands located at the outer layer of the end of the optical fiber composite phase line are clamped between the first conical surface and the second conical surface; The fastening assembly further comprises a conical washer sleeved on the central separation sleeve, the conical washer is cushioned between the strands passing through the compression hoop and the surface of the central separation sleeve and is close to the first conical surface; The first sealing assembly includes a first fastening threaded column, a first soft rubber plug and an end column fixed to the end of the central separation sleeve, the end of the end column away from the central separation sleeve is provided with a first water-blocking sealing cavity, the port of the first water-blocking sealing cavity is provided with an internal thread, the first soft rubber plug is located in the first water-blocking sealing cavity, the first fastening threaded column is threadedly connected to the port of the first water-blocking sealing cavity, a connected central light unit through-hole for the central light unit to pass through is provided between the end column, the first soft rubber plug and the first fastening threaded column, the first soft rubber plug is compressed by the first fastening threaded column so that the first soft rubber plug hugs the light unit and the outer wall is close to the inner wall of the first water-blocking sealing cavity.

2. The photoelectric separation device for layer-stranded and center-tube optical fiber composite phase lines according to claim 1 is characterized in that: A side light unit lead-out hole for passing the light unit out from the side is provided on the side of the outer shell, the inner end of the side light unit lead-out hole extends to the side of the insertion and separation portion of the central separation sleeve, and a second sealing component is provided at the outer end of the side light unit lead-out hole, and the second sealing component is used to seal the side light unit.

3. The photoelectric separation device for layer-stranded and center-tube optical fiber composite phase lines according to claim 2 is characterized in that: The outer shell includes a base and an upper cover covering the base, the side light unit lead-out hole is arranged on the base, the inner surface of the upper cover is provided with a first half-side fixing groove structure, and the covering surface of the base is provided with a second half-side fixing groove structure. The center separation sleeve is fastened in a fixing cavity formed by the first half-side fixing groove structure and the second half-side fixing groove structure in an interference fit manner, and the center light unit lead-out hole is formed at one end of the fixing cavity, and the optical fiber composite phase line entry hole is formed at the other end.

4. The photoelectric separation device for layer-stranded and center-tube optical fiber composite phase lines according to claim 2 is characterized in that: The outer shell includes two bases covering each other, and side light unit lead-out holes are respectively provided on the bases. A second half-side fixing groove structure is provided on the covering surface of the base. The central separation sleeve is fastened in a fixed cavity formed by the two second half-side fixing groove structures. The central light unit lead-out hole is formed at one end of the fixed cavity, and the optical fiber composite phase line entry hole is formed at the other end.

5. The photoelectric separation device for layer-stranded and center-tube optical fiber composite phase lines according to claim 1 is characterized in that: A bayonet is provided at the end of the insertion and separation portion, and part of the strands of the optical fiber composite phase line are embedded in the bayonet.

6. The photoelectric separation device for layer-stranded and center-tube optical fiber composite phase lines according to claim 1 or 5, characterized in that: The outer surface of the insertion and separation part is provided with a limiting boss, and the limiting boss is clamped between two strands located in the outer layer of the end of the optical fiber composite phase line.

7. The photoelectric separation device for layer-stranded and center-tube optical fiber composite phase lines according to claim 2 is characterized in that: The second sealing assembly includes a second fastening threaded column and a second soft rubber plug. A second water-blocking sealing cavity is provided at the outer end of the side light unit lead-out hole. An internal thread is also provided at the port of the second water-blocking sealing cavity. The second soft rubber plug is located in the second water-blocking sealing cavity. The second fastening threaded column is threadedly connected to the port of the second water-blocking sealing cavity. A connected side light unit outlet hole for the side light unit to pass through is provided between the second soft rubber plug and the second fastening threaded column. The second soft rubber plug is compressed by the second fastening threaded column so that the second soft rubber plug hugs the light unit and the outer wall is close to the inner wall of the second water-blocking sealing cavity.

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