Prefabricated assembly type electric power pipe
By combining the dovetail groove and the tenon and mortise structure of the limiting block with the cross plate bolt column, the problem of long installation time for prefabricated assembled power pipes is solved, and rapid positioning and locking are achieved, improving construction efficiency and pipe stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING HETAO PLASTIC CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-04-17
AI Technical Summary
The existing prefabricated electrical conduit has a complex connection structure, which leads to long installation time and low efficiency, especially during large-scale construction.
The mortise and tenon structure of dovetail groove and limiting block is combined with cross plate and bolt column to achieve quick positioning and locking of adjacent pipe supports, and additional support is provided by support components to simplify the installation process.
It enables rapid positioning and synchronous locking of adjacent pipe supports, shortens the construction period, reduces labor costs, and ensures the stability of the pipe body.
Smart Images

Figure CN224138666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, specifically to a prefabricated assembled power pipe. Background Technology
[0002] With urban construction and development, overhead cable lines are gradually being replaced by underground cable lines. Generally, underground cable lines are divided into direct underground burial cables and cables laid in pipes or trenches. Cables laid in pipes are a common type of underground cable line. Typically, underground cable lines have multiple routes, so multiple power pipes are usually buried together to support multiple underground cable lines. To facilitate transportation, pipe supports are pre-installed on the power pipes before they are installed in the trench. The purpose of the pipe supports is to fix multiple individual power pipes, keeping them horizontal, facilitating transportation, preventing damage during transport, and improving transportation stability.
[0003] According to a prefabricated assembled power pipe disclosed in the public notice (Announcement No.: CN210182995U), the aforementioned application uses a limiting component to limit and fix the connection block and the connection hole, preventing the connection block from falling off. The setting of a lever on the snap-fit block allows the operator to easily remove the snap-fit block from the mounting slot, facilitating the removal of the connection block. The setting of limiting blocks at both ends, which snap into the insertion slots on two adjacent pipe sleeper units, effectively limits and connects the two adjacent pipe sleeper units.
[0004] The upper and lower tube sleepers are connected by a combination of "T-slots, I-shaped connecting blocks, and limiting components". The large number of parts and complicated assembly steps result in long on-site installation time, which affects efficiency, especially during large-scale construction. Utility Model Content
[0005] The purpose of this invention is to provide a prefabricated assembled power pipe to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated assembled power conduit, comprising multiple sets of conduit supports and conduit bodies mounted thereon. Each conduit support has two sets of symmetrically arranged dovetail grooves on its four sides. A connecting assembly is provided between the multiple sets of conduits. The connecting assembly includes a limiting block, which is inserted into the interior of the two connected sets of dovetail grooves. A cross plate is fixedly connected to the end of the limiting block. The cross plate is in contact with one side of the conduit support. A bolt post is fixedly connected to the center of the cross plate, and a nut is threaded onto the outer wall of the bolt post.
[0007] Preferably, support components are provided on both sides of the tube pillow. Each support component includes a support plate, which is fixedly connected to the side wall of the tube pillow. A through hole is provided on the surface of the support plate, and a lead screw is threaded into the through hole. One end of the lead screw is fixedly connected to a rotating wheel, and the other end of the lead screw is rotatably connected to a lifting plate.
[0008] Preferably, each of the four corners of the tube pillow is provided with an arc-shaped notch, and the bolt post passes through the circular hole formed by the arc-shaped notch.
[0009] Preferably, a washer is fitted onto the outer wall of the bolt post, and the washer is in contact with the other side of the pipe rest.
[0010] Preferably, the limiting block is adapted to the shape of the two sets of dovetail grooves.
[0011] Preferably, a V-shaped plate is fixedly connected to the surface of the lifting plate.
[0012] Preferably, the bottom surface of the lifting plate is fixedly connected with four sets of symmetrically arranged guide rods, which pass through and are slidably connected to the bottom surface of the support plate.
[0013] Compared with the prior art, this utility model provides a prefabricated assembled power pipe, which has the following advantages:
[0014] 1. This prefabricated assembled power conduit, through the dovetail grooves on the four sides of the conduit and the tenon and mortise structure of the limiting block, combined with the integrated connection component of the cross plate and bolt column, achieves bidirectional rapid positioning and synchronous locking of adjacent conduits. It is suitable for large-scale pipeline construction, shortening the construction period while reducing labor costs.
[0015] 2. The prefabricated assembled power pipe has a support component that drives a lifting plate via a screw and a wheel, which in turn moves a V-shaped plate to fit the pipe body of different diameters, providing additional support to the pipe body and ensuring its stability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connecting component structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the support component structure of this utility model.
[0019] In the diagram: 1. Pipe support; 2. Pipe body; 3. Dovetail groove; 4. Arc-shaped notch; 5. Connecting assembly; 51. Limiting block; 52. Cross plate; 53. Bolt post; 54. Washer plate; 55. Nut; 6. Support assembly; 61. Support plate; 62. Lead screw; 63. Rotary wheel; 64. Lifting plate; 65. V-shaped plate; 66. Guide rod. Detailed Implementation
[0020] like Figures 1-3 As shown, this utility model provides a technical solution: a prefabricated assembled power conduit, including multiple sets of conduit supports 1 and conduit bodies 2 installed on them. Each conduit support 1 has two sets of symmetrically arranged dovetail grooves 3 on its four sides, and each set of four corners of the conduit support 1 has an arc-shaped notch 4. Each conduit support 1 is a rectangular module with a circular hole in the middle for the conduit body 2 to pass through. The four sides have symmetrical dovetail grooves 3 for the horizontal or vertical connection of adjacent conduits 1. The arc-shaped notches 4 at the four corners are spliced to form a circular through hole for the bolt post 53 to pass through.
[0021] like Figures 1-3 As shown, a connecting assembly 5 is provided between multiple sets of pipe supports 1. The connecting assembly 5 includes a limiting block 51, which is inserted into the interior of two connected sets of dovetail grooves 3. The shape of the limiting block 51 matches the shape of the two sets of dovetail grooves 3. A cross plate 52 is fixedly connected to the end of the limiting block 51. The cross plate 52 fits against one side of the pipe support 1. All the limiting blocks 51 are connected to the cross plate 52, which facilitates the synchronous insertion of the limiting blocks 51 into the corresponding dovetail grooves 3, improving installation efficiency. The dovetail grooves 3 cooperate with the limiting blocks 51 to provide initial positioning and shear support for multiple sets of pipe supports 1. A bolt post 53 is fixedly connected to the center of the cross plate 52. The bolt post 53 passes through the circular hole formed by the arc notch 4. A pad 54 is sleeved on the outer wall of the bolt post 53. The pad 54 fits against the other side of the pipe support 1. A nut 55 is threaded onto the outer wall of the bolt post 53. The cross plate 52 fits against the side of the pipe rest 1, while the bolt post 53 passes through the round hole of the arc notch 4 and is locked by the pad 54 and nut 55, which restricts the two ends of the limiting block 51 so that the limiting block 51 will not fall out of the dovetail groove 3, thus ensuring the connection strength between multiple sets of pipe rests 1.
[0022] like Figures 1-3 As shown, support components 6 are provided on both sides of the tube rest 1. Each support component 6 includes a support plate 61, which is fixedly connected to the side wall of the tube rest 1. A through hole is formed on the surface of the support plate 61, and a lead screw 62 is threaded into the through hole. One end of the lead screw 62 is fixedly connected to a rotating wheel 63, and the other end is rotatably connected to a lifting plate 64. A V-shaped plate 65 is fixedly connected to the surface of the lifting plate 64. The rotating wheel 63 allows the user to manually rotate the lead screw 62, causing the lifting plate 64 to move vertically, bringing the V-shaped plate 65 into contact with the outer wall of the tube body 2, thus providing support for the tube body 2. The shape of the V-shaped plate 65 better fits the circular outer wall of the tube body 2. Four sets of symmetrically arranged guide rods 66 are fixedly connected to the bottom surface of the lifting plate 64. The guide rods 66 penetrate and slide on the bottom surface of the support plate 61. The guide rods 66 provide guidance for the lifting plate 64, ensuring the stability of its position during vertical movement.
[0023] In this invention, during use, the dovetail grooves 3 of adjacent pipe supports 1 are aligned, forming a complete trapezoidal slot. The limiting block 51 is inserted into the dovetail groove 3 from one side. Utilizing the inverted trapezoidal structure of the dovetail groove 3, the limiting block 51 automatically engages, achieving initial positioning of the adjacent pipe supports 1. After the limiting block 51 is fully inserted, its end cross plate 52 adheres to the side of the pipe support 1. At this point, the bolt post 53 at the center of the cross plate 52 passes through the round hole formed by the arc-shaped notches 4 at the four corners of the pipe support 1. A pad 54 is fitted onto the other side of the pipe support 1. A wrench is used to tighten the nut 55. Through the clamping force between the pad 54 and the cross plate 52, the adjacent pipe supports 1 are vertically locked, preventing the limiting block 51 from dislodging from the dovetail groove 3.
[0024] The tube 2 is passed through the round hole in the middle of the tube pillow 1, so that the tube 2 is initially placed between the two support components 6. The rotating wheel 63 is rotated to drive the lead screw 62 to rotate. The rotational motion of the lead screw 62 is converted into the vertical movement of the lifting plate 64. The guide rod 66 at the bottom of the lifting plate 64 is inserted into the guide hole of the support plate 61 to ensure that there is no deviation during the lifting process. When the arc surface of the V-shaped plate 65 is tightly attached to the outer wall of the tube 2, the rotating wheel 63 is stopped to support the tube 2.
[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A prefabricated assembled power tube comprising a plurality of tube pillows (1) and a tube body (2) mounted thereon, characterized in that: The tube pillow (1) has two sets of symmetrically arranged dovetail grooves (3) on all four sides. A connecting component (5) is provided between multiple sets of tube pillows (1). The connecting component (5) includes a limiting block (51). The limiting block (51) is inserted into the interior of the two connected sets of dovetail grooves (3). A cross plate (52) is fixedly connected to the end of the limiting block (51). The cross plate (52) is in contact with one side of the tube pillow (1). A bolt post (53) is fixedly connected to the center of the cross plate (52). A nut (55) is threaded onto the outer wall of the bolt post (53).
2. A prefabricated assembly type power pipe according to claim 1, characterized in that: Support components (6) are provided on both sides of the tube pillow (1). The support components (6) include a support plate (61). The support plate (61) is fixedly connected to the side wall of the tube pillow (1). A through hole is opened on the surface of the support plate (61), and a screw rod (62) is threadedly connected in the through hole. A rotating wheel (63) is fixedly connected to one end of the screw rod (62), and a lifting plate (64) is rotatably connected to the other end of the screw rod (62).
3. The prefabricated assembled power tube according to claim 1, characterized in that: The four corners of the tube pillow (1) are provided with arc-shaped notches (4), and the bolt post (53) passes through the circular hole formed by the arc-shaped notches (4).
4. The prefabricated assembly type power pipe according to claim 1, characterized in that: A pad (54) is fitted onto the outer wall of the bolt column (53), and the pad (54) is in contact with the other side of the pipe pillow (1).
5. The prefabricated assembly type power pipe according to claim 1, characterized in that: The limiting block (51) is adapted to the shape of the two sets of dovetail grooves (3).
6. The prefabricated assembly type power pipe according to claim 2, characterized in that: A V-shaped plate (65) is fixedly connected to the surface of the lifting plate (64).
7. The prefabricated assembly type power pipe according to claim 2, characterized in that: The bottom surface of the lifting plate (64) is fixedly connected with four sets of symmetrically arranged guide rods (66), which are slidably connected to the bottom surface of the support plate (61).
Citation Information
Patent Citations
Prefabricated assembly type electric power pipe
CN210182995U