HPVC electric power pipe facilitating installation of overhead cable

Abstract

An HPVC power pipe convenient for mounting an overhead cable relates to the technical field of HPVC power pipes, and comprises a starting outer pipe and a connecting outer pipe which can be connected with each other, a driving inner pipe and a driven inner pipe which can be connected with each other, a driving mechanism, and a limiting support frame detachably mounted on the starting outer pipe or the connecting outer pipe, the limiting rod is detachably installed on the limiting supporting frame, and the traction block can be installed on the limiting rod in a sliding mode. A driving inner pipe is coaxially and rotationally mounted in the starting outer pipe; a driven inner pipe is coaxially and rotatably mounted in the connecting outer pipe; spiral grooves are formed in the inner walls of the driving inner pipe and the driven inner pipe; a pin shaft which can be mounted in the spiral groove in a sliding manner is fixedly arranged on the traction block; the driving mechanism comprises a mounting frame detachably mounted on the starting outer pipe, a driving motor fixedly mounted on the mounting frame, a driving gear rotationally mounted on the mounting frame, and a driven gear ring coaxially and fixedly mounted on the driving inner pipe and meshed with the driving gear.

Description

Technical Field

[0001] The invention relates to the technical field of HPVC electric power pipes, and in particular to an HPVC electric power pipe which is convenient for installing an overhead cable. Background Art

[0002] HPVC power pipe is a new type of high-performance pipe with the characteristics of high strength, high toughness, high pressure resistance, good flame retardancy and corrosion resistance. It can replace plastic-coated or galvanized steel pipe as a communication cable protection pipe.

[0003] Overhead cables are overhead conductors equipped with an insulation layer and a protective outer sheath. They are a special type of cable manufactured using a production process similar to that of cross-linked cables. They are a new way of transmitting electricity between overhead conductors and underground cables. Overhead cables in some scenarios need to be covered with HPVC power pipes when they are installed, for example: 1. Overhead cables below two meters above the ground; 2. Overhead cables in multiple bundles.

[0004] When installing the current overhead cable in the power tube, the cable must be installed first, and then the power tube is put on the outer periphery of the cable from the outside. When the cable is long, due to the softness and instability of the cable itself, the cable head cannot always keep the same direction when passing through the power tube, making the insertion process extremely cumbersome. In addition, the existing power tube needs to be cut or melted to adapt to cables of different lengths, which increases the difficulty of installation.

[0005] Therefore, it is necessary to invent a HPVC power pipe that can facilitate the installation of overhead cables. Summary of the invention

[0006] In view of the above problems, the present invention proposes an HPVC power pipe which is convenient for installing overhead cables, and the technical solution used is: A HPVC electric power pipe convenient for installing an overhead cable comprises a starting outer pipe and a connecting outer pipe which can be connected to each other, an active inner pipe and a driven inner pipe which can be connected to each other, a driving mechanism, a limit support frame which is detachably mounted on the starting outer pipe or the connecting outer pipe, a limit rod which is detachably mounted on the limit support frame, and a traction block which can be slidably mounted on the limit rod; the two connecting outer pipes can be connected to each other; the two driven inner pipes can be connected to each other; the active inner pipe is coaxially mounted in rotation in the starting outer pipe; the driven inner pipe is coaxially mounted in rotation in the connecting outer pipe; spiral grooves are arranged on the inner walls of the active inner pipe and the driven inner pipe; a pin which can be slidably mounted in the spiral groove is fixedly arranged on the traction block; the driving mechanism comprises a mounting frame which is detachably mounted on the starting outer pipe, a driving motor which is fixedly mounted on the mounting frame, a driving gear which is rotatably mounted on the mounting frame, and a driven gear ring which is coaxially fixedly mounted on the active inner pipe and meshes with the driving gear.

[0007] Furthermore, a coil spring connector is provided on the starting outer tube; the coil spring connector includes a connecting shaft fixedly mounted on the starting outer tube, and a rotating shaft rotatably mounted inside the connecting shaft, and a coil spring is provided between the rotating shaft and the connecting shaft; the driving mechanism also includes an upper rotating frame and a lower rotating frame that can be detachably mounted on the rotating shaft, an upper guide wheel rotatably mounted on the upper rotating frame, and a lower guide wheel rotatably mounted on the lower rotating frame.

[0008] Furthermore, the driving mechanism also includes an upper rotating gear fixedly mounted on the upper rotating frame, a lower rotating gear fixedly mounted on the lower rotating frame, an adjusting gear coaxially fixedly mounted on the output end of the driving motor, a movable frame slidably mounted on the mounting frame, and a sliding plate and rack 2 fixedly mounted on the movable frame; rack 2 is intermittently meshed with the lower rotating gear; rack 1 is fixedly mounted on the sliding plate, and sliding teeth are slidably mounted on the sliding plate; rack 1 and the sliding teeth are elastically connected; the adjusting gear is intermittently meshed with rack 1 or the sliding teeth; the upper rotating gear is intermittently meshed with rack 1 or the sliding teeth.

[0009] Furthermore, the adjusting gear is synchronously connected with the driving gear.

[0010] Furthermore, a plurality of extrusion blocks are elastically installed in the traction block.

[0011] Furthermore, the starting outer tube and the connecting outer tube, and the two connecting outer tubes are fixedly installed together via connecting sleeves.

[0012] Furthermore, the starting outer tube is fixedly mounted on the installation position via a fixing frame.

[0013] Furthermore, the starting outer tube and the connecting outer tube, and the two connecting outer tubes are connected by pins.

[0014] Furthermore, the active inner tube and the driven inner tube, and the two driven inner tubes are connected by pins.

[0015] Furthermore, the limiting rod is installed on the limiting support frame in an interlaced manner.

[0016] Since the present invention adopts the above technical solution, the present invention has the following advantages: 1. The present invention adopts the coordinated design of the starting outer tube, the active inner tube, the connecting outer tube, the driven inner tube, the driving mechanism, the traction block, the limit support frame and the limit rod. On the one hand, the number of the connecting outer tube and the driven inner tube can be selected according to the actual length of the overhead cable, and the starting outer tube, the active inner tube, the connecting outer tube and the driven inner tube can be freely combined together, and the connection method is simple. On the other hand, under the drive of the driving mechanism, the traction block can drive the end of the overhead cable to move, so that the overhead cable automatically enters the inside of the power tube, saving manpower; 2. The driving mechanism, traction block, limit support frame and limit rod of the present invention are all installed in a detachable manner. After the installation of the overhead cable is completed, the driving mechanism, traction block, limit support frame and limit rod can be removed and recycled, thereby saving resources and costs; 3. The traction block of the present invention can fix the ends of the multi-bundle overhead cables at one time, thereby reducing the difficulty of installing the overhead cables and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1-Figure 3 It is the installation schematic diagram of the present invention.

[0018] Figure 4 It is a schematic diagram of the assembly structure of the starting section during installation of the present invention.

[0019] Figure 5 A schematic diagram of the assembly structure of the tail section during installation of the present invention.

[0020] Figure 6 It is a schematic diagram of the assembly structure of the starting outer tube, the active inner tube, the driving mechanism, the traction block, the limit support frame, the fixing frame and the overhead cable of the present invention.

[0021] Figure 7-10 It is a partial structural schematic diagram of the driving mechanism of the present invention.

[0022] Fig.11 It is a schematic diagram of the explosion structure of the starting outer tube, the active inner tube, the driving mechanism, the traction block and the overhead cable of the present invention.

[0023] Fig.12 It is a schematic diagram of the starting section structure of the starting outer tube, the active inner tube, the traction block and the overhead cable of the present invention.

[0024] Fig.13 It is a schematic diagram of the structure of the end section of the starting outer tube and the active inner tube of the present invention.

[0025] Fig.14 It is a schematic diagram of the assembly structure of connecting the outer tube and the driven inner tube of the present invention.

[0026] Fig.15 It is a schematic diagram of the structure of the starting section connecting the outer tube and the driven inner tube of the present invention.

[0027] Fig.16 It is a schematic diagram of the structure of the end section connecting the outer tube and the driven inner tube of the present invention.

[0028] Fig.17 The schematic diagram of the structure of the tail section of the connecting outer tube and the driven inner tube assembled with the limited support frame of the present invention.

[0029] Fig.18 It is a schematic diagram of the assembly structure of the starting outer tube, the active inner tube, the traction block and the limiting support frame of the present invention.

[0030] Fig.19 For the present invention Fig.18 Schematic diagram of the cross-sectional structure of section AA.

[0031] Figure 20-21 It is a structural schematic diagram of the traction block of the present invention.

[0032] Fig. 22 It is a schematic structural diagram of the starting section of the starting outer tube assembled with the limited support frame of the present invention.

[0033] Fig.23 For the present invention Fig. 22 Schematic diagram of the local enlarged structure at point B in the middle.

[0034] Figure Number: 1-starting outer tube; 101-insertion hole 1; 102-coil spring connector (1021-connecting shaft; 1022-rotating shaft); 2-active inner tube; 201-spiral groove 1; 202-insertion hole 2; 3- connect to outer tube; 301- insert pin 1; 302- insert hole 3; 4- driven inner tube; 401- spiral groove 2; 402- insert pin 2; 403- insert hole 4; 5-driving mechanism; 501-mounting frame (5011-limiting slide); 502-driving motor; 503-adjusting gear; 504-moving frame; 505-sliding plate (5051-rack 1; 5052-sliding gear; 5053-compression spring rod); 506-upper rotating gear; 507-upper rotating frame; 508-upper guide wheel; 509-rack 2; 510-lower rotating gear; 511-lower rotating frame; 512-lower guide wheel; 513-bevel gear set (5131-input bevel gear; 5132-output bevel gear); 514-driving gear; 515-driven gear ring; 6-traction block; 601-pin shaft; 602-extrusion block; 603-compression spring; 604-limiting hole; 7-limiting support frame; 701-installation hole; 8-limiting rod; 9-Connecting sleeve; 10-Fixed bracket. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0037] This embodiment discloses an HPVC power pipe that is convenient for installing overhead cables. Figure 1-Figure 5 As shown, it includes a starting outer tube 1, an active inner tube 2, a connecting outer tube 3, a driven inner tube 4, a driving mechanism 5, a traction block 6, a limiting support frame 7, a limiting rod 8, a connecting sleeve 9 and a fixing frame 10; the active inner tube 2 is coaxially rotatably mounted inside the starting outer tube 1, and the starting outer tube 1 is fixedly mounted on a mounting position such as a hanger or a wall through a fixing frame 10; a driven inner tube 4 is coaxially rotatably mounted inside each connecting outer tube 3; the connecting outer tube 3 is docked and connected with the starting outer tube 1 or other connecting outer tubes 3 through a connecting sleeve 9; the driving mechanism 5 is detachably mounted on the starting section of the starting outer tube 1; the limiting support frame 7 is L-shaped as a whole, and its long plate is detachably mounted on the starting section of the starting outer tube 1 or the end section of the connecting outer tube 3, for example, fixedly mounted by fastening bolts; a mounting hole 701 is provided on the short plate of the limiting support frame 7 corresponding to the limiting rod 8, and the limiting rod 8 can pass through the mounting hole 701 and be installed inside the active inner tube 2 and the driven inner tube 4; the traction block 6 can be slidably mounted on the limiting rod 8.

[0038] like Figure 6-Figure 10As shown, the driving mechanism 5 includes a mounting frame 501, a driving motor 502, an adjusting gear 503, a moving frame 504, a sliding plate 505, an upper rotating gear 506, an upper rotating frame 507, an upper guide wheel 508, a rack 2 509, a lower rotating gear 510, a lower rotating frame 511, a lower guide wheel 512, a bevel gear set 513, a driving gear 514 and a driven gear ring 515; when installing an overhead cable, the mounting frame 501 is fixedly mounted on the starting section of the starting outer tube 1 in a detachable manner, such as a rope binding connection or adhesive connection; the driving motor 502 is fixedly mounted on the mounting frame 501, and its output end is coaxially fixedly connected with the adjusting gear 503 rotatably mounted on the mounting frame 501; in this embodiment, the driving motor 502 is a large torque and low speed motor; the moving frame 504 is horizontally slidably mounted on the mounting frame 501, the sliding plate 505 is horizontally fixedly mounted on the upper end of the moving frame 504, and the rack 2 509 is horizontally fixedly mounted on the lower end of the moving frame 504; The mounting frame 501 is provided with a limiting slide groove 5011, and the sliding plate 505 is horizontally slidably installed in the limiting slide groove 5011; a rack 1 5051 is horizontally fixedly provided on the sliding plate 5051, and a sliding tooth 5052 is slidably installed; the sliding tooth 5052 is located at the front side of the rack 1 5051, and the sliding tooth 5052 is elastically connected to the front end of the rack 1 5051 through a compression spring rod 5053; the adjustment gear 503 is intermittently meshed with the rack 1 5051 or the sliding tooth 5052; the rack 2 509 is horizontally slidably connected to the mounting frame 501; like Fig.12 , Fig.18 and Figure 22-Figure 23 As shown, the upper and lower halves of the starting section of the starting outer tube 1 are each provided with two sets of coil spring connectors 102; each coil spring connector 102 includes a connecting shaft 1021 and a rotating shaft 1022, the connecting shaft 1021 is fixedly mounted on the outer surface of the starting outer tube 1 through a connecting plate, the rotating shaft 1022 is coaxially rotatably mounted inside the connecting shaft 1021, and a coil spring is provided between the rotating shaft 1022 and the connecting shaft 1021; a fixing clamping plate is provided on the outer end of the rotating shaft 1022, and the upper rotating frame 507 and the lower rotating frame 511 are provided with a corresponding rotating shaft 1022. The fixing card plate is provided with an embedding hole; through the setting of the embedding hole, the upper rotating frame 507 and the lower rotating frame 511 can be fixedly installed on the corresponding rotating shaft 1022 in an inlaid manner; the upper guide wheel 508 is rotatably installed on the upper rotating frame 507, and the lower guide wheel 512 is rotatably installed on the lower rotating frame 511; after the upper rotating frame 507 and the lower rotating frame 511 are installed, the elastic potential energy stored in the coil spring will drive the upper rotating frame 507 and the lower rotating frame 511 to rotate in a direction close to each other, and the upper guide wheel 508 and the lower guide wheel 512 are in contact; The upper rotating gear 506 is fixedly mounted on the upper rotating frame 507, and the upper rotating gear 506 is intermittently meshed with the rack 1 5051 or the sliding gear 5052; the lower rotating gear 510 is fixedly mounted on the lower rotating frame 511, and the lower rotating gear 510 is intermittently meshed with the rack 2 509; The bevel gear set 513 includes an input bevel gear 5131 and an output bevel gear 5132 which are both rotatably mounted on the mounting frame 501 and meshed with each other. The input bevel gear 5131 is synchronously connected to the adjusting gear 503 through a transmission wheel and a transmission belt, and the output bevel gear 5132 is coaxially fixedly connected to a driving gear 514 rotatably mounted on the mounting frame 501; the driven ring gear 515 is coaxially fixedly mounted on the starting section of the active inner tube 2 and meshed with the driving gear 514.

[0039] like Figure 11-Figure 21 As shown, a spiral groove 1 201 is provided on the inner wall of the active inner tube 2, and a spiral groove 2 401 is provided on the inner wall of the driven inner tube 4; four insertion holes 101 are evenly distributed along the circumference on the tail end of the starting outer tube 1, and four insertion holes 202 are evenly distributed along the circumference on the tail end of the active inner tube 2; four insertion holes 302 with the same specifications as the insertion holes 101 are evenly distributed along the circumference on the tail end of the connecting outer tube 3, and four insertion pins 1 301 are evenly fixedly installed along the circumference on the head end, and the insertion pins 1 301 can cooperate with the insertion holes 1 101 or the insertion holes 302; four insertion holes 403 with the same specifications as the insertion holes 202 are evenly distributed along the circumference on the tail end of the driven inner tube 4, and four insertion pins 2 402 are evenly fixedly installed along the circumference on the head end, and the insertion pins 2 402 can cooperate with the insertion holes 202 or the insertion holes 403; The connection between the tubes is performed: on the one hand, the insertion pin 1 301 on the connecting outer tube 3 is inserted into the insertion hole 101 of the starting outer tube 1, and the insertion pin 2 402 of the driven inner tube 4 is inserted into the insertion hole 202 of the active inner tube 2, that is, the connecting outer tube 3 is connected to the starting outer tube 1, the driven inner tube 4 is connected to the active inner tube 2, and the spiral groove 2 401 is butted end to end with the spiral groove 1 201; on the other hand, the insertion pin 1 301 on the connecting outer tube 3 is inserted into the insertion hole 302 of another connecting outer tube 3, and the driven inner tube 4 is inserted into the insertion hole 403 of another driven inner tube 4, that is, the two connecting outer tubes 3 are connected to each other, the two driven inner tubes 4 are connected to each other, and the two spiral grooves 2 401 are butted end to end; The traction block 6 is cylindrical in shape as a whole, and two pins 601 are fixed on its outer wall, and each pin 601 can be slidably installed in the spiral groove 1 201 or the spiral groove 2 401; a limiting hole 604 corresponding to the limiting rod 8 is penetrated through the traction block 6, and the traction block 6 is slidably installed on the limiting rod 8 through the limiting hole 604; four extrusion blocks 602 are evenly distributed along the circumference inside the traction block 6, and the extrusion blocks 602 are elastically connected to the inner wall of the traction block 6 through compression springs 603; when the overhead cable passes through the space in the middle of the four extrusion blocks 602, the extrusion blocks 602 are pushed outward, and the compression springs 603 are compressed to produce a rebound effect, so that the extrusion blocks 602 press the overhead cable, so that the ends of the overhead cable are fixed between the four extrusion blocks 602.

[0040] In this embodiment, the limit rod 8 is made of steel wire rope; a wiring terminal is provided on the fixed frame 10, and the wiring terminal is connected to the drive motor 502 through a wire. The staff connects the drive motor 502 to the power supply control terminal carried by themselves through the wiring terminal, and controls the opening and closing of the drive motor 502 through the power supply control terminal.

[0041] The method of using this embodiment is as follows: The first step is to fix the fixing frame 10 on a mounting position such as a hanger or a wall, insert the starting outer tube 1 into the fixing frame 10 and fix it on the fixing frame 10; select the number of connecting outer tubes 3 according to the actual project requirements, connect the adjacent starting outer tubes 1 and connecting outer tubes 3, and the adjacent two connecting outer tubes 3 in series in sequence, connect the adjacent active inner tubes 2 and driven inner tubes 4, and the adjacent two driven inner tubes 4 in series in sequence, and fix the adjacent starting outer tubes 1 and connecting outer tubes 3, and the adjacent two connecting outer tubes 3 together through the connecting sleeve 9; In the second step, the limiting rods 8 are inserted into the two limiting holes 604 of the traction block 6, and the traction block 6 is rotated and placed into the starting section of the active inner tube 2, so that the two pins 601 enter the spiral groove 1 201; two limiting support frames 7 are fixedly installed on the starting section of the starting outer tube 1 and the last section connected to the outer tube 3 by fastening bolts, and the front and rear fixing frames 501 correspond to each other; the limiting rods 8 are correspondingly penetrated and installed in the mounting holes 701 of the front and rear limiting support frames 7; The third step is to mount the upper rotating frame 507 and the lower rotating frame 511 on the corresponding rotating shaft 1021, and the upper guide wheel 508 and the lower guide wheel 512 are in contact under the resetting action of the coil spring connector 102; the mounting frame 501 is mounted on the starting outer tube 1, and the adjusting gear 503 is meshed with the rack 1 5051, the upper rotating gear 506 is meshed with the front end of the rack 1 5051, the lower rotating gear 510 is meshed with the front end of the rack 2 509, and the driving gear 514 is meshed with the driven gear ring 515; In the fourth step, the staff connects the driving motor 502 to the power supply control terminal carried by the staff through the wiring terminal; the driving motor 502 is started, the adjusting gear 503 drives the rack 1 5051 to move forward, and the moving frame 504 moves forward accordingly, the rack 1 5051 drives the upper rotating gear 506 to rotate, and the rack 2 509 drives the lower rotating gear 510 to rotate, the upper rotating frame 507 and the lower rotating frame 511 are both rotated to a vertical state, and the upper guide wheel 508 and the lower guide wheel 512 move away from each other (in this process, the adjusting gear 503 will also be moved forward by the adjusting gear 503). The input bevel gear 5131 and the output bevel gear 5132 drive the driving gear 514 to rotate, and the driving gear 514 drives the driven gear ring 515 to rotate, thereby driving the active inner tube 2 to rotate, and the traction block 6 will move forward a short distance in the active inner tube 2. This movement will not affect the installation of the overhead cable); then the end of the overhead cable is installed in the traction block 6 and fixed by the extrusion block 602 (the ends of the overhead cables in multiple bundles can also be fixed between the extrusion blocks 602 at one time after being bundled into a bundle by adhesive tape); Then the driving motor 502 drives the adjusting gear 503 to rotate in the opposite direction, the upper rotating frame 507 and the lower rotating frame 511 approach each other, and the upper guide wheel 508 and the lower guide wheel 512 clamp the overhead cable; during the reverse rotation of the adjusting gear 503, the upper rotating gear 506 gradually disengages from the rack 1 5051, passes over the sliding tooth 5052 and stops rotating, the lower rotating wheel 510 gradually disengages from the rack 2 509 and stops rotating, the driving gear 514 rotates in the opposite direction to drive the driven gear ring 515 to rotate, the active inner tube 2 and the driven inner tube 4 rotate, and the traction block 6 moves backward along the limit rod 8; In the fifth step, the driving motor 502 continues to drive the adjusting gear 503 to rotate, and the adjusting gear 503 gradually disengages from the rack 1 5051 and meshes with the sliding gear 5052. The sliding gear 5052 will continuously mesh with the adjusting gear 503 under the rebound effect of the compression spring rod 5053; and the continuous rotation of the adjusting gear 503 will drive the active inner tube 2 to rotate continuously through the bevel gear set 513, the driving gear 514 and the driven gear ring 515, and the driven inner tube 4 and the active inner tube 2 rotate synchronously, and the pin 601 slides along the spiral groove 1 201 and enters the rear spiral groove 2 401 in turn, and the traction block 6 drives the overhead cable to pass through the active inner tube 2 and enter the rear driven inner tube 4 in turn until it moves to the end section of the last section of the driven inner tube 4; then the driving motor 502 is turned off, the adjusting gear 503 stops rotating, and the traction block 6 stops moving; Step 6: first remove the limit support frame 7 on the tail section of the last section connected to the outer tube 3, then remove the traction block 6, so that the overhead cable is separated from the traction block 6, disconnect the connection between the wiring terminal and the power supply control terminal, then remove the mounting frame 501, the upper rotating frame 507 and the lower rotating frame 511 in sequence, and finally remove the limit support frame 7 on the starting section of the starting outer tube 1, and pull out the two limit rods 8; The above steps complete the installation of the power pipe and overhead cables.

Claims

1. An HPVC power pipe that is convenient for installing overhead cables, characterized in that: The invention comprises a starting outer tube (1) and a connecting outer tube (3) which can be connected to each other, an active inner tube (2) and a driven inner tube (4) which can be connected to each other, a driving mechanism (5), a limit support frame (7) which is detachably mounted on the starting outer tube (1) or the connecting outer tube (3), a limit rod (8) which is detachably mounted on the limit support frame (7), and a traction block (6) which can be slidably mounted on the limit rod (8); the two connecting outer tubes (3) can be connected to each other; and the two driven inner tubes (4) can be connected to each other. The starting outer tube (1) has an active inner tube (2) coaxially rotatably mounted therein; the connecting outer tube (3) has a driven inner tube (4) coaxially rotatably mounted therein; the active inner tube (2) and the driven inner tube (4) are both provided with spiral grooves on their inner walls; the traction block (6) is fixedly provided with a pin (601) that can be slidably mounted in the spiral grooves; The driving mechanism (5) comprises a mounting frame (501) detachably mounted on the starting outer tube (1), a driving motor (502) fixedly mounted on the mounting frame (501), a driving gear (514) rotatably mounted on the mounting frame (501), and a driven gear ring (515) coaxially fixedly mounted on the driving inner tube (2) and meshing with the driving gear (514).

2. According to claim 1, a HPVC power pipe that is convenient for installing overhead cables is characterized in that: The starting outer tube (1) is provided with a coil spring connector (102); the coil spring connector (102) comprises a connecting shaft (1021) fixedly mounted on the starting outer tube (1), and a rotating shaft (1022) rotatably mounted inside the connecting shaft (1021), and a coil spring is provided between the rotating shaft (1022) and the connecting shaft (1021); the driving mechanism (5) further comprises an upper rotating frame (507) and a lower rotating frame (511) which can be detachably mounted on the rotating shaft (1022), an upper guide wheel (508) rotatably mounted on the upper rotating frame (507), and a lower guide wheel (512) rotatably mounted on the lower rotating frame (511).

3. According to claim 2, the HPVC power pipe for facilitating installation of overhead cables is characterized in that: The driving mechanism (5) further comprises an upper rotating gear (506) fixedly mounted on an upper rotating frame (507), a lower rotating gear (510) fixedly mounted on a lower rotating frame (511), an adjusting gear (503) coaxially fixedly mounted on an output end of a driving motor (502), a moving frame (504) slidably mounted on a mounting frame (501), and a sliding plate (505) and a second rack (509) fixedly mounted on the moving frame (504); the second rack (5 09) intermittently meshes with the lower rotating gear (510); a rack one (5051) is fixedly mounted on the sliding plate (505), and a sliding tooth (5052) is slidably mounted; the rack one (5051) and the sliding tooth (5052) are elastically connected; the adjusting gear (503) intermittently meshes with the rack one (5051) or the sliding tooth (5052); the upper rotating gear (506) intermittently meshes with the rack one (5051) or the sliding tooth (5052).

4. The HPVC power pipe for facilitating installation of overhead cables according to claim 3, characterized in that: The adjusting gear (503) is synchronously connected to the driving gear (514).

5. The HPVC power pipe for facilitating installation of overhead cables according to claim 1, characterized in that: A plurality of extrusion blocks (602) are elastically mounted inside the traction block (6).

6. The HPVC power pipe for facilitating installation of overhead cables according to claim 1, characterized in that: The starting outer tube (1) and the connecting outer tube (3), and the two connecting outer tubes (3) are fixedly mounted together via a connecting sleeve (9).

7. The HPVC power pipe for facilitating installation of overhead cables according to claim 1, characterized in that: The starting outer tube (1) is fixedly mounted at the installation position via a fixing frame (10).

8. The HPVC power pipe for facilitating installation of overhead cables according to claim 1, characterized in that: The starting outer tube (1) and the connecting outer tube (3), and the two connecting outer tubes (3) are connected via pins.

9. The HPVC power pipe for facilitating installation of overhead cables according to claim 1, characterized in that: The active inner tube (2) and the driven inner tube (4), and the two driven inner tubes (4) are connected via pins.

10. The HPVC power pipe for facilitating installation of overhead cables according to claim 1, characterized in that: The limiting rod (8) is installed on the limiting support frame (7) in an interlaced manner.

Images