Photovoltaic cable threading device

Abstract

The invention discloses a photovoltaic cable threading device, and relates to the technical field of cable installation, and the technical scheme is characterized in that the photovoltaic cable threading device comprises a cable bunching part and an advancing part; the advancing part comprises a main body pipe frame, and a plurality of supporting wheel sets and two advancing wheel sets which are uniformly distributed on the main body pipe frame; grooves are evenly formed in the main body pipe frame, and the supporting wheel sets are arranged in the grooves and move in the radial direction of the main body pipe frame in a limited mode. A forward extending pipe frame is arranged at the front end of the main body pipe frame, and the advancing wheel set comprises a mounting frame which is horizontally and movably connected with the forward extending pipe frame in a penetrating mode, a first driving motor arranged on the mounting frame and a friction wheel which is mounted on the first driving motor and used for making friction contact with the pipe wall. According to the invention, by matching the size of the protection sleeve and matching with the advancing part and the bunching part arranged on the protection sleeve, a cable bundle can be automatically clamped to pass through the protection sleeve so as to realize automatic threading work, so that the situation that the whole protection sleeve needs to be damaged and the protectiveness of the protection sleeve is reduced is avoided, and meanwhile, the threading efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable installation, and in particular to a photovoltaic cable threading device. Background Art

[0002] Photovoltaic cable is a power transmission cable used to transmit electricity to the main grid after photovoltaic panels generate electricity. It is usually laid underground, and before being buried, the cable needs to be sheathed with a protective sleeve on the outer layer. Since the cable is relatively long, the installation of the protective sleeve is also done manually. This results in a larger mass of the part inside the sleeve after it has been inserted to a certain length. When the rear part continues to apply force to thread the cable, the cable will bend in the sleeve, causing difficulty in threading. Therefore, the conventional solution is to cut the sleeve into multiple sections, and then thread the cable in sections. After the threading is completed, the sleeve is reassembled into a whole using heat shrink tubing and plastic connecting pipes. However, this method destroys the integrity of the sleeve, and its protection effect is greatly reduced. At the same time, the connection of the pipeline also increases extra workload and reduces work efficiency.

[0003] In view of this, a design or technical improvement is now proposed to solve the above problems.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide a photovoltaic cable threading device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A photovoltaic cable threading device comprises a wiring harness portion for fixing a cable threading end and a traveling portion arranged at the front end of the wiring harness portion; the traveling portion comprises a main pipe rack, a plurality of support wheel groups evenly arranged on the main pipe rack for supporting a pipe wall, and two travel wheel groups for traveling; the main pipe rack is evenly provided with grooves, the support wheel groups are arranged in the grooves and move along the radial limit of the main pipe rack; a forward pipe rack is arranged at the front end of the main pipe rack, and the travel wheel group comprises a mounting frame horizontally movably connected with the forward pipe rack, a first drive motor arranged on the mounting frame, and a friction wheel installed on the first drive motor for frictionally contacting with the pipe wall.

[0008] Furthermore, the cable bundle part includes a cable accommodating tube for placing the cable connection end and a clamping assembly arranged on the cable accommodating tube for clamping the cable; slots are evenly distributed on the cable accommodating tube, and the clamping assembly includes a clamping head hingedly arranged in the slots at the end, a locking tube movably sleeved on the outer end of the cable accommodating tube, and a push tube threadedly connected to the outer surface of the cable accommodating tube and movably abutting against the locking tube;

[0009] A wedge-shaped surface that matches each other is arranged between the side of the clamp away from the center of the wire containing tube and the inner surface of the locking tube.

[0010] Furthermore, limiting slide grooves are provided on the inner walls on both sides of the groove, and the supporting wheel group includes a bearing frame, a positioning guide wheel rotatably arranged on the bearing frame, a connecting rod hingedly arranged at the four ends of the bottom of the bearing frame, a limiting sliding roller rotatably arranged at one end of the connecting rod away from the bearing frame and sliding in the limiting slide groove, and a first spring arranged between the bearing frame and the inner wall of the groove.

[0011] Furthermore, a fixed frame plate is provided inside the forward pipe rack, a second spring is provided on the fixed frame plate, a push arm is provided at one end of the second spring away from the fixed frame plate, a wedge plate is provided on the side of the mounting frame close to the push arm, and wedge surfaces that cooperate with each other are provided on the side where the push arm and the wedge plate are close to each other.

[0012] Furthermore, a second drive motor is arranged inside the main pipe rack, a drive shaft is installed on the second drive motor, a plurality of connecting arms are evenly arranged on the drive shaft, and a scraper for cleaning the pipe wall is arranged at one end of the connecting arm away from the drive shaft.

[0013] Furthermore, the scraper is rotatably arranged on the connecting arm, a fixed circular plate is fixedly arranged on the driving shaft, a movable circular plate is rotatably arranged on the driving shaft, a connecting rope is arranged between the movable circular plate and the scraper, and a torsion spring is arranged between the movable circular plate and the fixed circular plate.

[0014] Furthermore, a drive control box is provided at the bottom of the forward extension pipe rack, and the drive control box is electrically connected to the first drive motor. An electric telescopic rod electrically connected to the drive control box is provided in the forward extension pipe rack, and a push plate is fixedly provided on the upper end of the electric telescopic rod, and a movable push plate movably connected to the push arm is slidably provided on the push plate; an arc groove is provided on the movable push plate, a thread groove is provided in the arc groove, and a thread matching the arc groove is provided on the drive shaft, and a motion monitor for monitoring the activity of the device is provided at the bottom of the drive control box.

[0015] Compared with the prior art, the beneficial effect of the present solution is that the present invention can automatically clamp the cable bundle and pass it through the protective tube sleeve to realize automatic threading by adapting the size of the protective tube sleeve and cooperating with the traveling part and the wire bundling part arranged thereon, thereby avoiding the need to destroy the protective sleeve as a whole to reduce its protectiveness, and at the same time greatly improving the threading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a front perspective schematic diagram of an embodiment of the present invention;

[0018] Figure 2 is a bottom-up stereoscopic schematic diagram of an embodiment of the present invention;

[0019] Figure 3 is a rear perspective schematic diagram of an embodiment of the present invention;

[0020] Figure 4 is a cross-sectional perspective schematic diagram of an embodiment of the present invention;

[0021] Figure 5 is a cross-sectional perspective schematic diagram of a wire harness portion in an embodiment of the present invention;

[0022] Figure 6 2 is a schematic diagram of the structure of a wire-containing tube according to an embodiment of the present invention;

[0023] Figure 7 1 is a disassembled schematic diagram of the support wheel assembly and the main pipe frame in an embodiment of the present invention;

[0024] Figure 8 is a partial schematic diagram of a traveling portion in an embodiment of the present invention;

[0025] Fig. 9 Schematic diagram of the internal structure of the main pipe rack in the embodiment of the present invention;

[0026] Fig.10 Schematic diagram of the arrangement position of the torsion spring in an embodiment of the present invention;

[0027] Fig.11 is a schematic diagram of the matching relationship between the mounting frame and the push arm in an embodiment of the present invention;

[0028] Fig.12 It is a schematic diagram of the setting position of the movable push plate in the embodiment of the present invention.

[0029] In the figure: 1. main pipe frame; 11. supporting wheel group; 12. traveling wheel group; 13. groove; 14. forward pipe frame; 2. mounting frame; 21. first driving motor; 22. friction wheel; 3. wire holding tube; 31. slot hole; 32. chuck; 33. locking tube; 34. push tube; 4. limiting slide groove; 41. bearing frame; 42. positioning guide wheel; 43. connecting rod; 44. limiting slide roller; 45. first spring; 5. fixed frame plate; 51. second spring; 52. push arm; 53. wedge plate; 6. second driving motor; 61. driving shaft; 62. connecting arm; 63. scraper; 7. fixed circular plate; 71. movable circular plate; 72. connecting rope; 73. torsion spring; 8. drive control box; 81. electric telescopic rod; 82. push plate; 83. movable push plate; 84. arc groove; 85. motion monitor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] like Figure 1-12 The cable threading device shown is used in the construction of photovoltaic cable pipe threading, and is specifically a photovoltaic cable threading device, including a wire harness part for fixing the cable threading end and a traveling part arranged at the front end of the wire harness part; the traveling part includes a main pipe rack 1, a plurality of support wheel groups 11 evenly arranged on the main pipe rack 1 for supporting the pipe wall, and two traveling wheel groups 12 for traveling; grooves 13 are evenly arranged on the main pipe rack 1, and the support wheel groups 11 are arranged in the grooves 13 and move along the radial limit of the main pipe rack 1; a forward pipe rack 14 is arranged at the front end of the main pipe rack 1, and the traveling wheel group 12 includes a mounting frame 2 that is horizontally movable and connected to the forward pipe rack 14, and a mounting frame 2 arranged on the mounting frame 13. The first drive motor 21 on the frame 2 and the friction wheel 22 installed on the first drive motor 21 for friction contact with the pipe wall, the overall volume of the device is designed to adapt to the specifications of the cable protective cover, so that it can meet the size of entering the minimum specification protective cover for activities. Because multiple cables are usually inserted at the same time, it is necessary to be able to drive multiple cables to move forward at the same time during insertion, so a wire binding part is set at the rear end of the device, and the wire binding part can tighten multiple groups of cables so that their passing ends are stabilized on the device, and then the device drives the whole to move in the protective pipe sleeve through the moving part at its upper end, and then drives the cable end to extend into the pipe sleeve, thereby automatically completing the threading work.

[0032] In one embodiment, the cable bundle includes a cable accommodating tube 3 for placing the cable connection end and a clamping assembly arranged on the cable accommodating tube 3 for clamping the cable; slots 31 are evenly distributed on the cable accommodating tube 3, and the clamping assembly includes a clamp 32 with an end hingedly arranged in the slot 31, a locking tube 33 movably sleeved on the outer end of the cable accommodating tube 3, and a push tube 34 threadedly connected to the outer surface of the cable accommodating tube 3 and movably abutting against the locking tube 33; a side of the clamp 32 away from the center of the cable accommodating tube 3 and a wedge-shaped surface that cooperates with each other is provided between the inner surface of the locking tube 33. Before starting the device, firstly, all the ends of the cable bundle are aligned and placed in the cable accommodating tube 3, and then the push tube 34 is rotated to abut against the locking tube 33 and move to the rear end, and then the inside of the clamp 32 will rotate inwardly to clamp and fix the cable bundle, so that the device can drive the end to move stably.

[0033] In one embodiment, the inner walls on both sides of the groove 13 are provided with limiting slide grooves 4, and the supporting wheel group 11 includes a bearing frame 41, a positioning guide wheel 42 rotatably arranged on the bearing frame 41, a connecting rod 43 hingedly arranged at the four ends of the bottom of the bearing frame 41, a limiting sliding roller 44 rotatably arranged at one end of the connecting rod 43 away from the bearing frame 41 and sliding in the limiting slide groove 4, and a first spring 45 arranged between the bearing frame 41 and the inner wall of the groove 13. The first spring 45 abuts against the bearing frame 41 to make it extend outward away from the center of the main pipe frame 1, and then when the device is placed in the pipe sleeve, the positioning guide wheel 42 can be fastened against the pipe wall for stability, so that the device as a whole is firmly fixed in the pipe sleeve, and its movement stability can be ensured through the guidance of the positioning guide wheel 42 during the movement.

[0034] In one embodiment, a fixed frame plate 5 is provided inside the forward pipe frame 14, and a second spring 51 is provided on the fixed frame plate 5. A push arm 52 is provided at one end of the second spring 51 away from the fixed frame plate 5. A wedge plate 53 is provided on the side of the mounting frame 2 close to the push arm 52. The side where the push arm 52 and the wedge plate 53 are close to each other is provided with wedge surfaces that cooperate with each other. The elasticity of the second spring 51 is used to make the push arm 52 move forward, and then the push arm 52 moves to both sides against the wedge plate 53, so that the two groups of mounting frames 2 drive the friction wheel 22 to move outward, so as to ensure that after the device is installed in the pipe sleeve, the friction wheel 22 can stably press against the pipe sleeve to apply friction force. At the same time, the material of the friction wheel 22 can be set to a material with a high friction coefficient such as rubber, and the texture can be added to improve the friction force, so as to ensure that the friction wheel 22 and the inner wall of the pipe sleeve are not easy to slip.

[0035] In one embodiment, a second drive motor 6 is provided inside the main pipe rack 1, a drive shaft 61 is installed on the second drive motor 6, a plurality of connecting arms 62 are evenly provided on the drive shaft 61, and a scraper 63 for cleaning the pipe wall is provided at one end of the connecting arm 62 away from the drive shaft 61. To ensure that the friction wheel 22 will not be affected by impurities on the pipe wall when the device moves in the pipe sleeve, resulting in incomplete contact surface and slipping, a scraper 63 is provided at the front end of the friction wheel 22. During the movement, the drive shaft 61 drives the scraper 63 to rotate in contact with the pipe wall by rotating, thereby scraping off impurities attached to the inner wall.

[0036] In one embodiment, the scraper 63 is rotatably arranged on the connecting arm 62, a fixed circular plate 7 is fixedly arranged on the driving shaft 61, a movable circular plate 71 is rotatably arranged on the driving shaft 61, a connecting rope 72 is arranged between the movable circular plate 71 and the scraper 63, and a torsion spring 73 is arranged between the movable circular plate 71 and the fixed circular plate 7. When the device enters the pipe sleeve, the torsion spring 73 will provide a rotational force to the movable circular plate 71, so that when it rotates, it drives the scraper 63 to rotate through the connecting rope 72, so that the outer part of the scraper 63 can be stably in contact with the pipe wall.

[0037] In one embodiment, a drive control box 8 is provided at the bottom of the forward extension pipe rack 14, and the drive control box 8 is electrically connected to the first drive motor 21. An electric telescopic rod 81 electrically connected to the drive control box 8 is provided in the forward extension pipe rack 14, and a push plate 82 is fixedly provided on the upper end of the electric telescopic rod 81, and a movable push plate 83 movably connected with the push arm 52 is slidably provided on the push plate 82; an arc groove 84 is provided on the movable push plate 83, and a thread groove is provided in the arc groove 84, and a thread matching the arc groove 84 is provided on the drive shaft 61. A motion monitor 85 for monitoring the activity of the device is provided at the bottom of the drive control box 8. Since there may be a depression on the inner wall of the casing, when the friction wheel 22 passes through the depression, its surface is insufficient in contact with the pipe wall, and at the same time, the elastic force of the second spring 51 against the friction wheel 22 may not be sufficient to make the friction wheel 22 press against the depression tightly, and the device will be stagnant at this time. The motion monitor 85 is then used to detect the motion state of the device. When the motion state stops, the drive control box 8 drives the electric telescopic rod 81 to extend upward, thereby driving the push plate 82 upward, so that the movable push plate 83 moves upward to engage the arc groove 84 thereon with the surface of the drive shaft 61, and then the drive shaft 61 drives the arc groove 84 to move forward through the thread during the rotation process, and the arc groove 84 drives the push arm 52 to continue to move forward, so that the abutment force between the friction wheels 22 on both sides and the pipe wall increases significantly in a short time, so that the friction wheels 22 are completely in contact with the recessed part, so as to drive the device as a whole to continue to move forward. When the device gets rid of the stagnant state, the motion monitor 85 detects the movement of the device, and the drive control box 8 will control the electric telescopic rod 81 to retract, so that the arc groove 84 is disengaged from the surface of the drive shaft 61, so that the device continues to recover to the normal travel state for threading.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A photovoltaic cable threading device, characterized in that: It includes a cable harness part for fixing the cable connection end and a traveling part arranged at the front end of the cable harness part; The traveling part comprises a main pipe frame (1), a plurality of supporting wheel groups (11) evenly arranged on the main pipe frame (1) for supporting the pipe wall, and two traveling wheel groups (12) for traveling; Grooves (13) are evenly distributed on the main pipe frame (1), and the support wheel set (11) is arranged in the grooves (13) and moves along the radial limiting direction of the main pipe frame (1); The front end of the main pipe frame (1) is provided with a forward pipe frame (14), and the traveling wheel group (12) comprises a mounting frame (2) horizontally movably connected to the forward pipe frame (14), a first driving motor (21) arranged on the mounting frame (2), and a friction wheel (22) mounted on the first driving motor (21) for frictionally contacting with the pipe wall.

2. The photovoltaic cable threading device according to claim 1, characterized in that: The cable bundle comprises a cable accommodating tube (3) for accommodating the cable connection end and a clamping assembly arranged on the cable accommodating tube (3) for clamping the cable; The wire accommodating tube (3) is evenly provided with slots (31), and the clamping assembly comprises a clamp (32) whose end is hingedly arranged in the slot (31), a locking tube (33) movably sleeved on the outer end of the wire accommodating tube (3), and a pushing tube (34) threadedly connected to the outer surface of the wire accommodating tube (3) and movably abutting against the locking tube (33); A wedge-shaped surface that matches each other is provided between the side of the clamp (32) away from the center of the wire containing tube (3) and the inner surface of the locking tube (33).

3. The photovoltaic cable threading device according to claim 1 or 2, characterized in that: The inner walls of both sides of the groove (13) are provided with limit sliding grooves (4), and the supporting wheel group (11) comprises a bearing frame (41), a positioning guide wheel (42) rotatably arranged on the bearing frame (41), a connecting rod (43) hingedly arranged at four ends of the bottom of the bearing frame (41), a limit sliding roller (44) rotatably arranged at one end of the connecting rod (43) away from the bearing frame (41) and sliding in a limit position in the limit sliding groove (4), and a first spring (45) arranged between the bearing frame (41) and the inner wall of the groove (13).

4. The photovoltaic cable threading device according to claim 3, characterized in that: A fixed frame plate (5) is arranged inside the forward extension pipe frame (14), a second spring (51) is arranged on the fixed frame plate (5), a push arm (52) is arranged at one end of the second spring (51) away from the fixed frame plate (5), a wedge plate (53) is arranged on the side of the mounting frame (2) close to the push arm (52), and wedge surfaces that match each other are arranged on the side where the push arm (52) and the wedge plate (53) are close to each other.

5. The photovoltaic cable threading device according to claim 4, characterized in that: A second drive motor (6) is arranged inside the main pipe rack (1), a drive shaft (61) is mounted on the second drive motor (6), a plurality of groups of connecting arms (62) are evenly arranged on the drive shaft (61), and a scraper (63) for cleaning the pipe wall is arranged at one end of the connecting arm (62) away from the drive shaft (61).

6. The photovoltaic cable threading device according to claim 5, characterized in that: The scraper (63) is rotatably arranged on the connecting arm (62), a fixed circular plate (7) is fixedly arranged on the driving shaft (61), a movable circular plate (71) is rotatably arranged on the driving shaft (61), a connecting rope (72) is arranged between the movable circular plate (71) and the scraper (63), and a torsion spring (73) is arranged between the movable circular plate (71) and the fixed circular plate (7).

7. The photovoltaic cable threading device according to claim 5, characterized in that: A drive control box (8) is arranged at the bottom of the forward extension tube frame (14), the drive control box (8) is electrically connected to the first drive motor (21), an electric telescopic rod (81) electrically connected to the drive control box (8) is arranged inside the forward extension tube frame (14), a push plate (82) is fixedly arranged at the upper end of the electric telescopic rod (81), and a movable push plate (83) movably connected to the push arm (52) is slidably arranged on the push plate (82); The movable push plate (83) is provided with an arc-shaped groove (84), a thread groove is provided in the arc-shaped groove (84), the drive shaft (61) is provided with a thread matching the arc-shaped groove (84), and the bottom of the drive control box (8) is provided with a motion monitor (85) for monitoring the activity of the device.

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