Electric power prefabricated pipe with protective structure

By introducing a connecting assembly consisting of a fixing ring, a socket, a rack, and a transmission component into the precast power conduit, the problem of difficult operation of flange connections in narrow environments is solved, achieving stable flange positioning and efficient installation, and reducing labor costs and safety risks.

CN224249302UActive Publication Date: 2026-05-15NANJING HETAO PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING HETAO PLASTIC CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The flange connection of existing precast power pipes is difficult to operate in narrow or high-altitude environments. It is easy for the flange to be misaligned due to accidental contact or external interference, which affects the installation efficiency and increases labor costs and safety risks.

Method used

A precast power pipe with a protective structure was designed. The precast pipe body is stably limited by the fixing ring, socket, rack and transmission component in the connecting component. The flange alignment and stability are ensured by the cooperation of the rack and slot and the elastic force of the spring. The toothed ring and knob of the movable component are locked to prevent accidental disengagement.

Benefits of technology

This achieves stable flange positioning during installation, preventing misalignment caused by accidental contact, improving installation efficiency, and reducing labor costs and safety risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric power prefabricated pipes, and discloses an electric power prefabricated pipe with a protective structure, which comprises a prefabricated pipe body, a flange I and a flange II, the two ends of the prefabricated pipe body are fixedly connected with the flange I and the flange II, and the surfaces of the flange I and the flange II are provided with a connecting assembly and a movable assembly; the connecting assembly comprises a first fixing ring, the first fixing ring is used for stabilizing a surface mechanism of the first fixing ring, according to the electric power prefabricated pipe with the protection structure, through the arranged connecting assembly, when butt joint installation needs to be conducted, the fixing cylinder enters the inserting hole, the inclined face of the rack makes contact with the inner wall of the inserting hole, and the rack retracts into the cavity and compresses the spring; when the rack moves to the position aligned with the clamping groove, the spring releases elastic force to enable the rack to reset and be clamped into the clamping groove, at the moment, the non-slope side of the rack tightly abuts against the inner wall of the clamping groove, and therefore stable limiting of the prefabricated pipe body is achieved, normal bolt installation can be achieved, deviation caused by mistaken touch is avoided, and the installation efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of power precast pipe technology, specifically a power precast pipe with a protective structure. Background Technology

[0002] Precast power pipes, as a modular and standardized component for power facility installation, are widely used in modern power engineering due to their advantages in facilitating quality control, schedule management, and construction coordination. By combining factory prefabrication with on-site installation, precast power pipes significantly reduce on-site construction workload and improve the overall project's installation efficiency, quality, and schedule controllability. Currently, the connection of precast power pipes mainly relies on flanges and bolts for fixing; that is, by butt-joining the flanges of adjacent pipe sections, aligning the mounting holes on the flanges, and then inserting bolts to complete the fastening.

[0003] However, flange connections require precise manual alignment of multiple flange holes, which is particularly challenging in confined or high-altitude environments. Accidental contact or external interference can easily cause flange misalignment, necessitating repeated adjustments and severely impacting installation efficiency. Before tightening, the lack of temporary positioning structures between flanges means even minor collisions can lead to displacement. This is especially problematic when installing multiple pipes in parallel, requiring multiple people to work together to secure them, increasing labor costs and safety risks. Utility Model Content

[0004] The purpose of this invention is to provide a precast power pipe with a protective structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precast power pipe with a protective structure, comprising a precast pipe body, flange one, and flange two, wherein both ends of the precast pipe body are fixedly connected to flange one and flange two, and connecting components and movable components are provided on the surfaces of flange one and flange two;

[0006] The connection component includes:

[0007] Fixed ring one, fixed ring one is used to stabilize its surface mechanism;

[0008] The insertion hole is used to mate with the fixing cylinder for positioning and installation.

[0009] Transmission components are used to drive the synchronous movement of various parts.

[0010] Preferably, the first fixing ring is fixed to the outer surface of the first flange, and the second fixing ring is fixed to the outer surface of the second flange. The outer surface of the second fixing ring has an insertion hole, and the inner wall of the insertion hole has a groove. The outer surface of the first fixing ring is fixed to a fixing cylinder, and the inside of the fixing cylinder has a cavity. A rack is slidably connected to the inner wall of the cavity, and a fixing block is fixed to the inner wall of the cavity. A spring is fixed to the outer surface of the fixing block, and the end of the spring away from the fixing block is fixed to the outer surface of the rack. During installation, the fixing cylinder enters the insertion hole, and the inclined surface of the rack contacts the inner wall of the insertion hole, forcing the rack to retract into the cavity and compress the spring. When the rack moves to the position aligned with the groove, the spring releases its elastic force, causing the rack to reset and engage with the groove. The non-inclined side of the rack is in close contact with the inner wall of the groove, thereby achieving stable positioning of the precast pipe body.

[0011] Preferably, the transmission component includes a circular plate, which is rotatably connected to the side of the cavity away from the inner wall of the rack. A through hole is formed on the outer surface of the circular plate, and a retaining tooth is fixed to the inner wall of the through hole. A gear is rotatably connected to the inner wall of the cavity, and the gear meshes with the retaining tooth and the rack. A rotating rod is fixed to the side of the circular plate away from the fixed block. The end of the rotating rod away from the circular plate passes through the fixed cylinder and the first fixed ring, and the rotating rod is rotatably connected to the fixed cylinder and the first fixed ring. A gear is fixed to the end of the rotating rod away from the circular plate. When the rack moves, it can drive the first gear to rotate synchronously. At this time, the retaining tooth drives the circular plate to rotate synchronously, so that each rack moves synchronously, improving the consistency of movement.

[0012] Preferably, the end of the rack away from the spring is set as an inclined surface, which allows the rack to move when it is abutted.

[0013] Preferably, the movable component includes a gear ring, which is rotatably connected to the outer surface of a fixed ring. The gear ring meshes with a gear. A screw is provided on the surface of the gear ring, which passes through the gear ring and is threadedly connected to the gear ring. A knob is fixed at the end of the screw away from the fixed ring. Rotating the knob causes the screw to press against the fixed ring, thereby locking the position of the gear ring. During disassembly, the screw is loosened and the bolt is removed. Then, the gear ring is rotated, which drives the rotating rod and the circular plate to rotate, thereby releasing the limit and separating the components.

[0014] Preferably, a protective layer is fixed to the outer surface of the precast pipe body to facilitate the protection of the precast pipe body.

[0015] Compared with the prior art, this utility model provides a precast power pipe with a protective structure, which has the following beneficial effects:

[0016] 1. This precast power pipe with a protective structure, through its connecting components, allows the fixing cylinder to enter the socket when docking is required. The inclined surface of the rack contacts the inner wall of the socket, and the rack retracts into the cavity and compresses the spring. When the rack moves to the position aligned with the slot, the spring releases its elastic force, causing the rack to reset and lock into the slot. At this time, the non-inclined side of the rack is in close contact with the inner wall of the slot, thus achieving a stable and limited position of the precast pipe body. It can then be installed normally with bolts without accidental contact that could cause displacement, thereby improving installation efficiency.

[0017] 2. This precast power pipe with a protective structure has a movable component. Rotating the knob can lock the position of the gear ring to prevent the rack from coming out of the slot. When disassembling, loosen the screw, rotate the gear ring to drive the second gear to rotate, and the rack can be disengaged from the slot through the connecting component, thus releasing the limit and facilitating disassembly. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a front view structural diagram of some of the connecting components and movable components of this utility model;

[0021] Figure 4 This is a front view structural diagram of some of the connecting components of this utility model;

[0022] Figure 5 This is a side view of some of the connecting components and movable components of this utility model;

[0023] Figure 6 This is a cross-sectional view of some of the connecting components of this utility model.

[0024] In the diagram: 1. Precast pipe body; 2. Flange 1; 3. Flange 2; 4. Connecting assembly; 40. Fixing ring 1; 41. Fixing ring 2; 42. Insertion hole; 43. Slot; 44. Fixing cylinder; 45. Cavity; 46. Fixing block; 47. Spring; 48. Rack; 49. Transmission component; 490. Circular plate; 491. Through hole; 492. Gear; 493. Gear 1; 494. Rotating rod; 495. Gear 2; 5. Movable assembly; 50. Gear ring; 51. Screw; 52. Knob; 6. Protective layer. Detailed Implementation

[0025] like Figures 1-6As shown, this utility model provides a technical solution: a precast power pipe with a protective structure, including a precast pipe body 1, flange 1 2, and flange 2 3. The two ends of the precast pipe body 1 are fixedly connected to flange 1 2 and flange 2 3. The surfaces of flange 1 2 and flange 2 3 are provided with connecting components 4 and movable components 5. The connecting components 4 include: a fixing ring 1 40, a fixing ring 2 41, a socket 42, a slot 43, a fixing cylinder 44, a cavity 45, a fixing block 46, a spring 47, a rack 48, a transmission component 49, a circular plate 490, a through hole 491, a locking tooth 492, a gear 1 493, a rotating rod 494, and a gear 2 495.

[0026] A retaining ring 40 is fixed to the outer surface of flange 2. A retaining ring 41 is fixed to the outer surface of flange 3. An insertion hole 42 is formed on the outer surface of retaining ring 41, and a groove 43 is formed on the inner wall of the insertion hole 42. A retaining cylinder 44 is fixed to the outer surface of retaining ring 40. A cavity 45 is formed inside the retaining cylinder 44. A rack 48 is slidably connected to the inner wall of the cavity 45. A retaining block 46 is fixed to the inner wall of the cavity 45, and a spring is fixed to the outer surface of the retaining block 46. 47. The end of the spring 47 away from the fixing block 46 is fixed to the outer surface of the rack 48. The transmission component 49 includes a circular plate 490, which is rotatably connected to the side of the cavity 45 away from the inner wall of the rack 48. A through hole 491 is opened on the outer surface of the circular plate 490, and a retaining tooth 492 is fixed to the inner wall of the through hole 491. A gear 493 is rotatably connected to the inner wall of the cavity 45. The gear 493 meshes with the retaining tooth 492 and the rack 48. A rotating rod 494 is fixed to the side of the circular plate 490 away from the fixed block 46. The end of the rotating rod 494 away from the circular plate 490 passes through the fixed cylinder 44 and the first fixed ring 40, and the rotating rod 494 is rotatably connected to the fixed cylinder 44 and the first fixed ring 40. A gear 495 is fixed to the end of the rotating rod 494 away from the circular plate 490. The end of the rack 48 away from the spring 47 is set as an inclined surface. When the fixed cylinder 44 is installed into the insertion hole 42, the inclined surface of the rack 48 is flush with the inner wall of the insertion hole 42. Upon contact, the rack 48 is forced to retract into the cavity 45 and compress the spring 47, simultaneously driving the gear 493 to rotate. This, in turn, pushes the circular plate 490 to rotate forward through the locking teeth 492. When the rack 48 moves to the position aligned with the slot 43, the spring 47 releases its elastic force, causing the rack 48 to reset and lock into the slot 43. At the same time, the gear 493 and the circular plate 490 reverse and return to their original positions. At this point, the non-sloping side of the rack 48 is in close contact with the inner wall of the slot 43, achieving a stable and limited position for the precast pipe body 1. This design not only prevents accidental displacement during installation but also facilitates subsequent bolt fixing, effectively improving installation efficiency.

[0027] The movable component 5 includes a gear ring 50, which is rotatably connected to the outer surface of the fixed ring 40. The gear ring 50 meshes with the gear 495. A screw 51 is provided on the surface of the gear ring 50, passing through the gear ring 50 and threadedly connected to it. A knob 52 is fixed to the end of the screw 51 away from the fixed ring 40. Rotating the knob 52 causes the screw 51 to press against the fixed ring 40, locking the position of the gear ring 50 and preventing accidental contact that could cause the rack 48 to disengage from the slot 43 and affect the limiting stability. During disassembly, first loosen the screw 51 and remove the bolt, then rotate the gear ring 50. The gear 495 drives the rotating rod 494 and the circular plate 490 to rotate, causing the retaining teeth 492 to drive the gear 493 to rotate, thereby causing the rack 48 to exit the slot 43, thus releasing the limiting and separating the components. A protective layer 6 is fixed to the outer surface of the precast pipe body 1 to protect it.

[0028] When installation is required, the precast pipe body 1 is joined together, and the fixing cylinder 44 is installed into the insertion hole 42. At this time, the inclined surface of the rack 48 abuts against the inner wall of the insertion hole 42, and the rack 48 enters the cavity 45. Simultaneously, the spring 47 is compressed, and as the rack 48 moves, it drives the gear 493 to rotate synchronously. At this time, the retaining tooth 492 drives the circular plate 490 to rotate clockwise. When the rack 48 is parallel to the retaining groove 43, the spring 47 is released, and the rack 48 returns to its original position and enters the retaining groove 43. At the same time, the gear 493 and the circular plate 490 reverse and return to their original positions. At this time, the inner wall of the retaining groove 43 abuts against the side of the rack 48 away from the inclined surface, which limits the positioning of the precast pipe body 1. At the same time, the mounting holes of flange 2 and flange 3 are parallel, allowing bolts to be installed normally. The installation process is efficient and prevents accidental misoperation that could lead to displacement. Rotating knob 52 causes the surface of screw 51 to contact the surface of fixing ring 40, thus limiting the toothed ring 50 and preventing accidental contact that could cause rack 48 to disengage from slot 43 and affect the stability of the limit. When disassembly is required, loosen screw 51 and remove bolts. Rotating the toothed ring 50 then causes gear 2 495 to drive rotating rod 494 and circular plate 490, which in turn drives the retaining gear 492 to rotate. Gear 1 493 then rotates, simultaneously moving rack 48 out of slot 43, thus releasing the limit and allowing for normal separation. The protective layer 6 is made of high-density polyethylene, which has high compressive strength and protects the precast pipe body 1.

[0029] 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 precast power pipe with a protective structure, comprising a precast pipe body (1), flange one (2), and flange two (3), characterized in that: The two ends of the precast pipe body (1) are fixedly connected to flange one (2) and flange two (3), and the surfaces of flange one (2) and flange two (3) are provided with connecting components (4) and movable components (5). The connection component (4) includes: Fixed ring 1 (40), fixed ring 1 (40) is used to stabilize its surface mechanism; The insertion hole (42) is used to cooperate with the fixing cylinder (44) for positioning and installation; Transmission component (49) is used to drive the synchronous movement of each component.

2. The precast power pipe with a protective structure according to claim 1, characterized in that: The first fixing ring (40) is fixed on the outer surface of the first flange (2). The second fixing ring (41) is fixed on the outer surface of the second flange (3). The second fixing ring (41) has an insertion hole (42) on its outer surface. The inner wall of the insertion hole (42) has a slot (43). The first fixing ring (40) has a fixing cylinder (44) fixed on its outer surface. The fixing cylinder (44) has a cavity (45) inside. The inner wall of the cavity (45) is slidably connected to a rack (48). The inner wall of the cavity (45) is fixed to a fixing block (46). The outer surface of the fixing block (46) is fixed to a spring (47). The end of the spring (47) away from the fixing block (46) is fixed to the outer surface of the rack (48).

3. A precast power pipe with a protective structure according to claim 2, characterized in that: The transmission component (49) includes a circular plate (490), which is rotatably connected to the side of the cavity (45) away from the inner wall of the rack (48). A through hole (491) is provided on the outer surface of the circular plate (490), and a retaining tooth (492) is fixed on the inner wall of the through hole (491). A gear (493) is rotatably connected to the inner wall of the cavity (45), and the gear (493) meshes with the retaining tooth (492). A (493) meshes with a rack (48). A rotating rod (494) is fixed on the side of the circular plate (490) away from the fixed block (46). The end of the rotating rod (494) away from the circular plate (490) passes through the fixed cylinder (44) and the first fixed ring (40). The rotating rod (494) is rotatably connected to the fixed cylinder (44) and the first fixed ring (40). A gear (495) is fixed on the end of the rotating rod (494) away from the circular plate (490).

4. A precast power pipe with a protective structure according to claim 2, characterized in that: The end of the rack (48) away from the spring (47) is set as an inclined plane.

5. A precast power pipe with a protective structure according to claim 3, characterized in that: The active component (5) includes a gear ring (50), which is rotatably connected to the outer surface of a fixed ring (40). The gear ring (50) meshes with a gear (495). A screw (51) is provided on the surface of the gear ring (50). The screw (51) passes through the gear ring (50) and is threadedly connected to the gear ring (50). A knob (52) is fixed at one end of the screw (51) away from the fixed ring (40).

6. A precast power pipe with a protective structure according to claim 1, characterized in that: A protective layer (6) is fixed on the outer surface of the precast pipe body (1).