A raceway structure with a hand hole

Abstract

The application discloses a wire tube structure with a hand hole and relates to the technical field of wire tubes, which is characterized in that the wire tube body is formed by welding two half elbow pipes, the inner part of each half elbow pipe is respectively provided with a hand hole part and an electric tube part, a fixed sleeve pipe located at the hand hole part is fixedly installed in the electric tube part, a rotating block is movably sleeved in the fixed sleeve pipe, gear rings are fixedly installed on the two sides of the rotating block, the gear rings are rotationally connected with the fixed sleeve pipe, four wire threading holes for threading wires are annularly and equidistantly formed in the rotating block, and the wires can be separated and distinguished through the wire threading holes to avoid entanglement. Through the cooperative action of the half elbow pipe split structure, the rotating block separated wire threading hole, the adjusting and positioning mechanism and the pushing mechanism, the visible threading of the wire in the elbow pipe section, the anti-winding laying, the torsional stress release and the later mechanical auxiliary maintenance are realized, and the technical problems of the traditional wire tube elbow pipe section threading difficulty, multi-wire winding, stress accumulation and inconvenient maintenance are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of electrical conduit technology, specifically to an electrical conduit structure with a hand hole. Background Technology

[0002] In modern building electrical installation projects, electrical conduits (also known as wiring conduits or cable trays) are one of the most basic and widely used components for line protection and laying. Whether in industrial plants, commercial complexes, high-rise residential buildings, or infrastructure projects (such as subways, tunnels, and bridges), electrical conduits are widely used to provide physical protection and path guidance for power supply lines, lighting lines, control lines, and low-voltage signal lines. Electrical conduits not only protect wires from external mechanical damage and chemical corrosion, but also effectively prevent the spread of electrical fires. They are an indispensable and important component of modern electrical installation projects.

[0003] In traditional conduit wiring installation, the common method is "manual pushing + manual pulling." Specifically, workers first insert one or more wires into one end of the conduit and then manually push them forward. When encountering a bend, the resistance increases dramatically due to the wire's inherent rigidity and elasticity. At this point, another worker at the other end uses a steel wire or rope to pull the wire through the bend. This coordinated effort from both ends is necessary to slowly pull the wire through the bend. This method has several inherent technical drawbacks.

[0004] To overcome the aforementioned technical problems, there is an urgent need for a new type of conduit structure in the existing technology. This structure should provide visual operating conditions during the wire threading process in the bend section, effectively prevent multiple wires from tangling and knotting together in the bend section, allow for adjustment of the internal wire twisting state to release stress after construction, and provide mechanical assistance for later maintenance and replacement, thereby comprehensively solving the aforementioned technical problems. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an electrical conduit structure with a hand hole.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a conduit structure with a hand hole, comprising a conduit body, the conduit body being welded from two semi-bent pipes, each semi-bent pipe having a hand hole portion and a conduit portion respectively inside, the conduit portion having a fixed sleeve fixedly installed adjacent to the hand hole portion inside, the fixed sleeve having a rotating block movably fitted inside, gear rings fixedly installed on both sides of the rotating block, the gear rings being rotatably connected to the fixed sleeve, the rotating block having a plurality of wire-passing holes equidistantly arranged in a ring inside, the wire-passing holes being used to pass through the conduit body, a first connecting flange block and a second connecting flange block being fixedly installed at both ends of the conduit body, a first sealing flange block being fixedly installed at one end of the hand hole portion, and a second sealing flange block being fixed to the side of the first sealing flange block by bolts and nuts.

[0007] Preferably, the hand hole is provided with an adjustment and positioning mechanism, which is used to rotate and position the gear ring.

[0008] Preferably, the adjustment and positioning mechanism includes a first fixing block fixed to the outer shell of the hand hole portion, a round rod is movably sleeved inside the first fixing block, and a gear block located inside the hand hole portion is fixedly sleeved on the outer surface of one end of the round rod, and the outer surface of the gear block meshes with the outer surface of the gear ring.

[0009] Preferably, a rotating disk located outside the hand hole is fixedly connected to the left end of the round rod, and an insertion disk is fixedly connected to the right end of the round rod.

[0010] Preferably, a plug rod is snapped into the upper end of the socket plate, and a movable block is fixedly connected to the upper end of the plug rod.

[0011] Preferably, a fixed box is movably fitted onto the outer surface of the movable block, and the bottom of the fixed box is fixedly connected to the outer shell of the hand hole.

[0012] Preferably, a pull rod is movably sleeved inside the upper end of the fixed box, the lower end of the pull rod is fixedly connected to the top of the movable block, a rigid spring is fixedly installed on the top of the movable block, and the upper end of the rigid spring is fixedly connected to the inner wall of the fixed box.

[0013] Preferably, a pushing mechanism is provided inside the hand hole, which is used to pull or push the wire body.

[0014] Preferably, the pushing mechanism includes a second fixing block fixed to the upper end of the hand hole portion, a connecting rod movably sleeved inside the second fixing block, a rotating block fixedly connected to the lower end of the connecting rod, a rubber ring provided on the outer surface of the rotating block, the rotating block pressing against the wire body through the rubber ring and the observation port opened at the right end of the fixing sleeve, and a hexagonal hole block fixedly connected to the upper end of the connecting rod.

[0015] Preferably, a ball bearing is provided inside the threading hole, and the ball bearing makes rolling contact with the wire body.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides an electrical conduit structure with a hand hole, which has the following advantages: 1. By creating multiple equally spaced wire-passing holes in a ring inside the rotating block, and threading multiple wires through different holes, the wires are physically separated inside the curved pipe. At the same time, combined with the openable structure formed by welding the semi-curved pipe and the operating space provided by the hand hole, it not only assists in guiding the wires through the hand hole, but also effectively prevents multiple wires from getting tangled, rubbing, or knotted inside the curved pipe, reducing the difficulty of wire passing, improving construction efficiency, and ensuring a clear and orderly layout of the wiring.

[0017] 2. By setting a rotating block that is rotatably connected to the fixed sleeve, and fixing gear rings on both sides of the rotating block, in conjunction with the gear block and round rod of the adjustment and positioning mechanism in the hand hole, the operator can drive the gear ring to rotate the rotating block inside the fixed sleeve after the wire is threaded through. This rotation can drive the wire body threaded through the wire hole to rotate together, thereby effectively releasing the internal torsional stress generated during the bending and laying of the wire, avoiding damage to the wire due to long-term stress. At the same time, the wire exit direction can be finely adjusted according to the actual installation requirements, enhancing the flexibility of installation.

[0018] 3. By opening an observation port at the right end of the fixed sleeve, and cooperating with the push mechanism rotating block and rubber ring inside the hand hole, maintenance personnel can directly observe the actual condition of the wire body inside the pipe, such as whether the insulation layer is damaged, through the conduit and the observation port, which facilitates timely detection of faults. On the other hand, when it is necessary to replace or pull the wire, the push mechanism can be operated to make the rotating block with the rubber ring press against the wire body and rotate, thereby applying axial thrust or pull force to the wire, assisting the wire to move in the pipe, greatly reducing the difficulty of repairing and replacing cables, and improving the convenience of later maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a front view of the present invention. Figure 3 This is a schematic diagram of the internal structure of the semi-bent tube of the present invention; Figure 4 This is a schematic diagram of the external structure of the semi-bent pipe of the present invention; Figure 5 This is a schematic diagram of the gear block of the present invention; Figure 6 This is a front sectional view of the fixing box of the present invention; Figure 7 This is a schematic diagram of the rotating block of the present invention; Figure 8 This is a schematic diagram of the rotating block of the present invention; Figure 9 This is a side cross-sectional view of the rotating block of the present invention; Figure 10 For the present invention Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Conduit body; 101. Half-bend conduit; 102. Conduit section; 103. Handhole section; 2. Fixed sleeve; 3. Rotating block; 4. Gear ring; 5. Wire hole; 6. Wire body; 7. Observation port; 8. First fixed block; 9. Round rod; 10. Gear block; 11. Rotating disk; 12. Insertion disk; 13. Fixed box; 14. Moving block; 15. Insert rod; 16. Pull rod; 17. Rigid spring; 18. Second fixed block; 19. Hexagonal hole block; 20. Connecting rod; 21. Rotating block; 22. Rubber ring; 23. Ball bearing; 24. First connecting flange block; 25. Second connecting flange block; 26. First sealing flange block; 27. Second sealing flange block; 28. Bolt; 29. ​​Nut. Detailed Implementation

[0021] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0022] Example 1 according to Figures 1-10As shown, a conduit structure with a hand hole includes a conduit body 1. The conduit body 1 is not integrally formed during manufacturing; instead, it is assembled by welding two semi-bent pipes 101 that are split along their longitudinal center plane. The two semi-bent pipes 101 are structurally symmetrical or complementary. When they are joined, they form a complete through-channel for accommodating electrical wires. This split design is a key technical feature of this embodiment, aiming to provide an open field of vision and operating space for subsequent wire installation. Each semi-bent pipe 101 is divided into two functional areas along its length: a hand hole section 103 and a conduit section 102. The conduit section 102 is the main body of the semi-bent pipe 101, and its cross-section is arc-shaped. The conduit 101 is shaped like a cylinder or semicircle and serves as the main channel for the main body of the conduit 1. The handhole 103 is an enlarged cavity structure that protrudes outward from a specific location on the semi-bent pipe 101, usually in the middle of the bend or on a straight section adjacent to the bend. When the two semi-bent pipes 101 are welded together, the two handholes 103 together form a complete handhole chamber. The internal space of this chamber is significantly larger than the internal space of the conduit 102, thus providing an operating window for the operator's hands or tools to reach into the conduit. Inside the conduit 102, near the handhole 103, a fixing sleeve 2 is fixedly installed. The fixing sleeve 2 has a cylindrical structure, and its outer wall can be welded, bonded, or press-fitted to the inner wall of the conduit 102. The fixed connection is achieved by means that the axis of the fixed sleeve 2 is basically coincident with the central axis of the conduit 102 at the installation position to ensure smooth wire installation. The inner wall of the fixed sleeve 2 is machined with a smooth surface for rotational engagement with the rotating block 3. The rotating block 3 is cylindrical in shape, and its outer diameter is adapted to the inner diameter of the fixed sleeve 2, allowing the rotating block 3 to be movably fitted inside the fixed sleeve 2 and to rotate freely around its own axis. Gear rings 4 are fixedly installed on the two end faces of the rotating block 3. The gear rings 4 are external gears with teeth evenly distributed on their outer circumference. The gear rings 4 and the fixed sleeve 2 form a rotational connection. Specifically, an annular groove can be opened on the inner wall of the fixed sleeve 2, and the gear rings 4 can be embedded in the groove. This achieves axial limitation of the rotating block 3 while allowing its circumferential rotation. Alternatively, end caps can be installed at both ends of the fixed sleeve 2, constraining the gear ring 4 within the internal space of the fixed sleeve 2. The rotating block 3 has equidistant, annular threading holes 5 along its axial direction. In this embodiment, four threading holes 5 are preferably arranged evenly on the end face of the rotating block 3 at a 90-degree angle. The inner diameter of the threading hole 5 is determined by the outer diameter of the wire body 6 to be threaded, typically slightly larger than the outer diameter of the wire body 6 to allow the wire body 6 to slide freely within the threading hole 5. The four threading holes 5 allow multiple wire bodies 6 to be placed in different threading holes 5.This achieves physical separation, and this separation mechanism is the core of this embodiment: during the wiring process, each wire body 6 is confined within an independent channel. Even if the conduit body 1 undergoes significant bending, the wires will not intersect or become entangled in space, effectively avoiding the problems of multiple wires tangling, squeezing, and rubbing against each other in the bending section of traditional wiring methods. In this embodiment, a first connecting flange block 24 and a second connecting flange block 25 are fixedly installed at both ends of the conduit body 1. Both the first connecting flange block 24 and the second connecting flange block 25 are disc-shaped structures with a through hole in the center that penetrates the inner diameter of the conduit body 1. Multiple bolt holes evenly distributed along the circumference are provided on the end faces of both connecting flange blocks for flange connections with other pipelines or electrical equipment. Through the first connecting flange block 24 and the second connecting flange block 25, the conduit structure of this embodiment can be easily connected to existing electrical wiring systems, exhibiting good compatibility and interchangeability.

[0023] Example 2 Based on the first specific embodiment, this embodiment further improves upon it. This embodiment focuses on providing a mechanism that allows for circumferential angle adjustment of the internally installed wire body 6 from the outside while the conduit body 1 is closed. This eliminates torsional stress generated during wire laying and allows for precise adjustment of the wire's exit direction according to actual installation requirements. The added adjustment and positioning mechanism in this embodiment is another important inventive feature of this invention. In this embodiment, according to Figures 4-6 As shown, the hand hole 103 is equipped with an adjustment and positioning mechanism for rotating the gear ring 4. The specific structure of the adjustment and positioning mechanism is as follows: A first fixing block 8 is fixedly installed on the outer shell of the hand hole portion 103. The first fixing block 8 is generally block-shaped or cylindrical, and has a through hole inside for movably connecting the round rod 9. The first fixing block 8 can be fixed to the outer shell surface of the hand hole portion 103 by means of bolt connection, welding or riveting. In order to ensure the smoothness and accuracy of the rotation of the round rod 9, a rolling bearing or sliding bearing can be installed in the through hole of the first fixing block 8, and the round rod 9 is inserted into the inner ring of the bearing. The round rod 9 extends along the radial direction of the hand hole portion 103, and one end of it extends into the internal cavity of the hand hole portion 103. The other end is exposed outside the handhole portion 103. A gear block 10 is fixedly sleeved on the outer surface of the end of the round rod 9 that extends into the handhole portion 103. The gear block 10 is an external gear structure, with its axis coinciding with the axis of the round rod 9. Its outer diameter and tooth profile parameters match those of the gear ring 4. The outer surface of the gear block 10 and the outer surface of the gear ring 4 are meshed. Since the gear block 10 is fixed to the round rod 9, and the round rod 9 is constrained by the first fixing block 8, the position of the gear block 10 relative to the outer shell of the handhole portion 103 is fixed. When the round rod 9 rotates, the gear block 10 rotates synchronously with the round rod 9 and passes through... The gear ring 4 is driven to rotate via meshing transmission, which in turn drives the rotating block 3 to rotate within the fixed sleeve 2. A rotating disk 11 is fixedly connected to one end of the round rod 9 located outside the hand hole 103. The rotating disk 11 is disc-shaped or star-shaped with a handle, and its diameter is larger than that of the round rod 9 to facilitate the operator's grip and application of rotational torque. The outer circumferential surface of the rotating disk 11 can be machined with knurled patterns or anti-slip grooves to increase friction during gripping and prevent slippage. A socket disk 12 is fixedly connected to the right end of the round rod 9, which is the end opposite to the rotating disk 11, or an extension of the same end. The socket disk 12 is a disc. The shaped component has multiple positioning holes evenly distributed around its circumference on its end face. These positioning holes are used to cooperate with the insertion rod 15 to achieve circumferential locking. The number of positioning holes can be four, six, eight or more. The more positioning holes there are, the higher the adjustment accuracy. In order to realize the locking and unlocking operation of the round rod 9, this embodiment also provides a set of spring reset locking components. Specifically, a fixing box 13 is fixedly installed on the outer shell of the hand hole part 103. The fixing box 13 is a hollow box structure with a sliding chamber inside. The bottom of the fixing box 13 has a through hole for the insertion rod 15 to pass through.The top of the fixed box 13 also has a through hole for the pull rod 16 to pass through. A movable block 14 is movably fitted inside the sliding cavity of the fixed box 13. The movable block 14 has a plate-like or block-like structure, and its outer contour matches the cross-section of the inner cavity of the fixed box 13, allowing the movable block 14 to slide vertically up and down within the fixed box 13 without horizontal offset or wobbling. A plug rod 15 is fixedly connected to the lower end of the movable block 14. The plug rod 15 extends downwards and passes through the through hole at the bottom of the fixed box 13 to the outside. The outer diameter of the lower end of the plug rod 15 matches the inner diameter of the positioning hole on the insertion plate 12, allowing the plug rod 15 to be inserted into the positioning hole. Currently locked, a pull rod 16 is fixedly connected to the upper end of the movable block 14. The pull rod 16 extends upward and passes through the through hole at the top of the fixed box 13 to the outside. A pull ring or handle can be installed at the top of the pull rod 16 for easy gripping and lifting by the operator. A rigid spring 17 is installed between the top of the movable block 14 and the top surface of the inner wall of the fixed box 13. The rigid spring 17 is sleeved on the outside of the pull rod 16, with its upper end abutting against the top surface of the inner wall of the fixed box 13 and its lower end abutting against the top surface of the movable block 14. The rigid spring 17 is always in a compressed state, and its elastic restoring force pushes the movable block 14 downward, so that the insertion rod 15 always tends to insert downward into the positioning hole in the insertion plate 12.

[0024] Example 3 Based on Embodiment 1 or Embodiment 2, this embodiment makes further improvements. This embodiment focuses on providing an observation and auxiliary operation mechanism that facilitates later maintenance and repair by setting an observation port 7 and a pushing mechanism inside the hand hole 103. In this embodiment, according to Figures 4-10 As shown, the specific structure of the propulsion mechanism is as follows: A second fixing block 18 is fixedly installed on the upper outer shell of the handhole portion 103. The structure of the second fixing block 18 is similar to that of the first fixing block 8. It has a through hole for movably connecting the connecting rod 20. The second fixing block 18 is fixed to the outer shell of the handhole portion 103 by bolts or welding. The connecting rod 20 passes through the second fixing block 18 vertically or at a certain angle to the vertical direction. Its lower end extends into the internal cavity of the handhole portion 103, while its upper end is exposed outside the handhole portion 103. A rotating block 21 is fixedly connected to the lower end of the connecting rod 20. The rotating block 21 is cylindrical or roller-shaped, and its axis coincides with or is perpendicular to the axis of the connecting rod 20. A rubber ring 22 is provided on the outer surface of the rotating block 21. The rubber ring 22 is made of a high-friction elastic material, such as nitrile rubber, silicone rubber, or polyurethane rubber. The outer surface of the rubber ring 22 can be provided with anti-slip textures to enhance the friction between it and the wire body 6. The rotating block 21 forms a pressing contact with the wire body 6 through the rubber ring 22 and the observation port 7. Specifically, when the connecting rod 20 is rotated downwards, the rotating block 21 descends, and the rubber ring 22 passes through the observation port 7 and presses against the outer surface of the wire body 6, thereby establishing a static friction or rolling friction transmission relationship between the rubber ring 22 and the wire body 6. A hexagonal hole block 19 is fixedly connected to the upper end of the connecting rod 20, i.e., the end located outside the hand hole portion 103. An internal hexagonal hole is formed in the center of the hexagonal hole block 19, which is used for... When connected to an external rotary power tool such as an electric drill, the drill bit or a special hexagonal wrench is inserted into the inner hexagonal hole of the hexagonal block 19 and the drill is started. The rotational torque output by the drill is transmitted to the connecting rod 20 through the hexagonal block 19. The connecting rod 20 drives the rotating block 21 to rotate. When the rotating block 21 rotates, the rubber ring 22 on its outer surface generates friction between it and the wire body 6. The axial component of this friction can drive the wire body 6 to move along the axial direction of the pipe, thereby realizing the pushing or pulling of the wire body 6. In this embodiment, a ball bearing 23 is also provided inside the wire hole 5. Specifically, multiple hemispherical grooves are opened on the inner wall of the wire hole 5, and a ball bearing 23 is embedded in each groove. A part of the ball bearing 23 protrudes... The ball bearing 23, which forms a rolling contact with the wire body 6 on the inner wall surface of the threading hole 5, can be made of steel or ceramic. Its smooth surface and extremely low coefficient of friction allow the ball bearing 23 to transform the original sliding friction into rolling friction as the wire body 6 slides within the threading hole 5, significantly reducing friction and lowering the resistance to threading and pulling. This also reduces wear on the wire insulation. In this embodiment, a first sealing flange block 26 is fixedly installed at one end of the handhole portion 103. A second sealing flange block 27 is fixed to the side of the first sealing flange block 26 via bolts 28 and nuts 29. Both the first and second sealing flange blocks 26 are disc-shaped structures, and their cooperation forms the openable closed end of the handhole portion 103.A sealing gasket can be installed between the first sealing flange block 26 and the second sealing flange block 27 to ensure waterproof and dustproof performance after sealing. When maintenance is required, loosen the bolts 28 and nuts 29, remove the second sealing flange block 27, and the maintenance window of the handhole 103 can be opened.

[0025] When an inspection reveals that a wire body 6 is damaged and needs replacement, the maintenance personnel first disconnect the terminals at both ends of the wire from the conduit, freeing it. Then, they proceed with the wire pulling operation: the maintenance personnel insert the hexagonal drill bit into the internal hexagonal hole of the hexagonal hole block 19 and tighten it, then start the drill. Simultaneously, another maintenance personnel manually hold the end of the wire to be replaced at one end of the conduit body 1. Driven by the drill, the hexagonal hole block 19 rotates the connecting rod 20, which in turn rotates the rotating block 21. The rubber ring 22 on the outer surface of the rotating block 21 makes tight contact with the wire body 6 through the observation port 7. Static friction is generated, and driven by this friction, the wire body 6 is subjected to a pushing or pulling force along the axial direction of the pipe. Combined with manual pulling at the other end, the damaged wire is smoothly pulled out of the pipe. Throughout the pulling process, the ball bearing 23 inside the threading hole 5 forms rolling contact with the wire body 6, effectively reducing sliding resistance and making the pulling process easier and smoother. This also prevents the wire insulation layer from being scratched during the pulling process. After the old wire is pulled out, the new wire is threaded. The operator inserts the end of the new wire from one end of the pipe and through the corresponding threading hole 5 on the rotating block 3. When the end of the wire reaches the hand hole... At position 103, the operator adjusts the connecting rod 20 so that the rubber ring 22 of the rotating block 21 presses firmly against the surface of the new wire. Then, the operator sets the rotation direction of the electric drill to the opposite direction of the wire pulling and starts the drill. At this time, the rotating block 21 rotates in the opposite direction, and the friction force generated by the rubber ring 22 points inward into the pipe, thus pushing the wire deeper into the pipe. The operator receives the end of the wire at the other end of the pipe until the new wire is completely inserted. During the operation of the pushing mechanism, the operator needs to adjust the speed of the electric drill appropriately according to the moving speed of the wire to avoid the speed being too high and causing the rubber ring 22 to come into contact with the wire. Sliding friction occurs between the rubber ring 22 and the wire insulation layer, causing wear. At the same time, it is important to ensure that the clamping force of the rubber ring 22 is moderate—ensuring sufficient friction to drive the wire, but not causing irreversible deformation of the wire due to excessive compression. After the new wire is installed, the maintenance personnel rotate the connecting rod 20 upwards to move the rotating block 21 away from the wire body 6, releasing the compression contact between the rubber ring 22 and the wire. Then, the second sealing flange block 27 is reinstalled on the first sealing flange block 26, and the bolts 28 and nuts 29 are tightened to restore the sealed state of the hand hole 103. At this point, the entire wire replacement operation is completed.

[0026] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A conduit structure with a hand hole, comprising a conduit body (1), characterized in that: The main body (1) of the electrical conduit is welded together from two semi-bent pipes (101). Each semi-bent pipe (101) has a hand hole (103) and an electrical conduit section (102) inside. A fixed sleeve (2) adjacent to the hand hole (103) is fixedly installed inside the electrical conduit section (102). A rotating block (3) is movably sleeved inside the fixed sleeve (2). Gear rings (4) are fixedly installed on both sides of the rotating block (3). The gear rings (4) rotate with the fixed sleeve (2). The rotating block (3) has multiple wire holes (5) arranged in an annular shape at equal intervals inside. The wire holes (5) are used to pass through the wire body (6). The two ends of the wire conduit body (1) are respectively fixedly installed with a first connecting flange block (24) and a second connecting flange block (25). One end of the hand hole (103) is fixedly installed with a first sealing flange block (26). The side of the first sealing flange block (26) is fixed with a second sealing flange block (27) by bolts (28) and nuts (29).

2. The conduit structure with a hand hole according to claim 1, characterized in that: The hand hole (103) is provided with an adjustment and positioning mechanism, which is used to rotate the gear ring (4) and position it.

3. The conduit structure with a hand hole according to claim 2, characterized in that: The adjustment and positioning mechanism includes a first fixing block (8) fixed to the outer shell of the hand hole (103). A round rod (9) is movably sleeved inside the first fixing block (8). A gear block (10) located inside the hand hole (103) is fixedly sleeved on the outer surface of one end of the round rod (9). The outer surface of the gear block (10) meshes with the outer surface of the gear ring (4).

4. The conduit structure with a hand hole according to claim 3, characterized in that: The left end of the round rod (9) is fixedly connected to a rotating disk (11) located outside the hand hole (103), and the right end of the round rod (9) is fixedly connected to an insertion disk (12).

5. The conduit structure with a hand hole according to claim 4, characterized in that: The upper end of the socket plate (12) is fitted with a plug rod (15), and the upper end of the plug rod (15) is fixedly connected to a moving block (14).

6. The conduit structure with a hand hole according to claim 5, characterized in that: The outer surface of the movable block (14) is movably fitted with a fixed box (13), and the bottom of the fixed box (13) is fixedly connected to the outer shell of the hand hole (103).

7. The conduit structure with a hand hole according to claim 6, characterized in that: A pull rod (16) is movably sleeved inside the upper end of the fixed box (13). The lower end of the pull rod (16) is fixedly connected to the top of the moving block (14). A rigid spring (17) is fixedly installed on the top of the moving block (14). The upper end of the rigid spring (17) is fixedly connected to the inner wall of the fixed box (13).

8. The conduit structure with a hand hole according to claim 1, characterized in that: The hand hole (103) is provided with a pushing mechanism inside, which is used to pull or push the wire body (6).

9. The conduit structure with a hand hole according to claim 8, characterized in that: The pushing mechanism includes a second fixing block (18) fixed to the upper end of the hand hole (103). A connecting rod (20) is movably sleeved inside the second fixing block (18). A rotating block (21) is fixedly connected to the lower end of the connecting rod (20). A rubber ring (22) is provided on the outer surface of the rotating block (21). The rotating block (21) is pressed against the wire body (6) through the rubber ring (22) and the observation port (7) opened at the right end of the fixing sleeve (2). A hexagonal hole block (19) is fixedly connected to the upper end of the connecting rod (20).

10. The conduit structure with a hand hole according to claim 1, characterized in that: The inside of the thread hole (5) is provided with a ball (23), which makes rolling contact with the wire body (6).

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