Pipeline threading device for electric power construction

By using a stainless steel spherical guide head and a multi-segment nylon flexible rod structure, combined with magnetic positioning blocks and U-shaped clamps, the problem of insufficient guidance and flexibility of existing pipe threading devices has been solved, enabling the smooth threading of cables in complex pipes and improving construction efficiency and quality.

CN224249243UActive Publication Date: 2026-05-15ZHENGRUI CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGRUI CONSTR CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing conduit cable pullers have poor guiding properties and low flexibility, which makes cables prone to getting stuck, bending and obstructing, and falling off in long-distance or complex conduits, affecting construction efficiency and quality.

Method used

It adopts a stainless steel spherical guide head and a flexible nylon rod structure with multiple rotating connections, combined with magnetic positioning blocks and U-shaped clamps to enhance guidance and flexibility, and prevent cable deviation and detachment.

Benefits of technology

It improves the cable's guidance and flexibility in pipelines, reduces cable jamming, ensures the smooth passage of cables in complex pipelines, and improves construction efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of power construction tools, in particular to a pipeline threading device for power construction. The utility model provides a pipeline threading device for power construction. The pipeline threading device comprises a guide head and a flexible rod body, the guiding head is of a stainless steel spherical structure, and the rear portion of the guiding head is flexibly connected with the flexible rod body through a connecting line. The flexible rod body is composed of a plurality of nylon sections which are rotationally connected with one another, each nylon section is composed of a sleeve and two guide rods, one end of each guide rod extends out, the two guide rods are rotationally connected with the two sides of the previous sleeve, and a connecting line penetrates through the middle of each nylon section; a connector lug is arranged at the tail end of the flexible rod body, a magnetic positioning block is embedded in the connector lug, and the bottom of the connector lug is connected with a connector through threads.
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Description

Technical Field

[0001] This utility model relates to the field of power construction tools, specifically to a conduit threader used in power construction. Background Technology

[0002] Power construction refers to a series of engineering construction activities related to electricity, encompassing multiple stages such as power generation, transmission, transformation, distribution, and consumption. In a power system, a large number of cables and wires need to be laid to transmit electricity from power plants to various points of consumption. Power construction is crucial for ensuring the normal operation of society, guaranteeing a stable power supply and meeting the electricity needs of industrial production, commercial operations, and residential life. In power construction, a conduit puller is a commonly used tool for threading wires and cables through pre-laid conduits.

[0003] Most existing conduit cable pullers have rigid guide heads with a single structure, resulting in poor guidance and difficulty in accurately guiding cables through conduits. This is especially problematic in long-distance or complex conduit environments, where cable jamming can easily occur, affecting construction efficiency. Furthermore, traditional cable pullers lack flexibility, making it difficult to bend within curved conduits, potentially causing cable obstruction or even damage to the cable sheath. Additionally, some cable pullers lack effective positioning and securing functions, leading to cable misalignment or detachment during the pulling process, increasing construction difficulty and risk, and reducing construction quality. Utility Model Content

[0004] The purpose of this invention is to provide a conduit cable puller for power construction, in order to solve the problems of poor guiding performance, poor flexibility, and easy cable detachment in existing guide heads in the prior art.

[0005] The present invention provides a conduit threading device for power construction, comprising a guide head and a flexible rod. The guide head is a stainless steel spherical structure, and its rear end is flexibly connected to the flexible rod via a connecting wire. The flexible rod consists of multiple nylon segments that are rotatably connected to each other. Each nylon segment is composed of a sleeve and two guide rods extending from one end. The two guide rods are rotatably connected to both sides of the front sleeve, and the connecting wire passes through the middle of the nylon segment. The end of the flexible rod is provided with a connector, on which a magnetic positioning block is embedded. The bottom of the connector is connected to a connector via a thread.

[0006] As a preferred embodiment of this utility model, the guide head is made of hollow metal, and the tail of the guide head is connected to a terminal block by a thread, with one end of the connecting wire passing through the terminal block and located inside the guide head.

[0007] As a preferred technical solution of this utility model, the sleeve at one end of the flexible rod is provided with a connecting seat at its top end that matches the shape of the guiding head, and the connecting seat abuts against the guiding head.

[0008] As a preferred technical solution of this utility model, the length of a single sleeve is 2-5cm, and the sleeve is provided with limiting protrusions to prevent torsion on both sides of the guide rods.

[0009] As a preferred embodiment of this utility model, the connecting wire is either a 1-2mm steel wire rope or a nylon wire.

[0010] As a preferred embodiment of this utility model, the top of the connector is fixedly connected to the connecting wire, and the inside of the connector is provided with a cavity for storing the connecting wire.

[0011] As a preferred technical solution of this utility model, the connector is composed of a base plate and a clamping plate, wherein the base plate is provided with a U-shaped wire feeding groove, and the middle part of the wire feeding groove is fixedly connected to the clamping plate by screws.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1. The guide head of this conduit cable puller adopts a stainless steel spherical structure, combined with a multi-segment rotating nylon section, which can effectively enhance the strength of the head in the conduit, prevent it from getting tangled, and thus better guide the cable forward, adapt to conduits in different directions, reduce the occurrence of cable jamming, and improve cable pulling efficiency.

[0014] 2. This conduit cable puller consists of a flexible rod composed of multiple rotatable nylon segments, which can flexibly adapt to curved conduits, easily turn inside the conduit, reduce the risk of cables being obstructed inside the conduit, and ensure the integrity of the cable sheath.

[0015] 3. The magnetic positioning block on the connector of this conduit cable puller can play a certain positioning role for the cable, and can position and guide the position of the connector from the outside. At the same time, the U-shaped structure in the connector increases the contact area between the clamp and the cable, so that the cable can be more firmly fixed, effectively preventing the cable from shifting or falling off during the cable pulling process, thus improving the construction quality and stability. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a conduit cable puller for power construction according to the present invention.

[0017] Figure 2 This is an exploded structural diagram of the guide head and connector of a conduit threader for power construction according to this utility model.

[0018] Figure 3This is a cross-sectional three-dimensional structural diagram of a conduit threader for power construction according to the present invention.

[0019] Figure 4 This is a structural diagram of the nylon section of a conduit threader for power construction according to this utility model.

[0020] As shown in the figure:

[0021] 1. Guide head; 2. Flexible rod; 3. Connecting wire; 4. Nylon section; 5. Sleeve; 6. Guide rod; 7. Terminal; 8. Magnetic positioning block; 9. Connector; 10. Terminal block; 11. Connecting seat; 12. Limiting protrusion; 13. Cavity; 14. Base plate; 15. Clamping plate; 16. Cable tray; 17. Screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] As per the instruction manual Figure 1-4 As shown, a conduit threader for power construction includes a guide head 1 and a flexible rod 2;

[0026] In this utility model, the guide head 1 is a stainless steel spherical structure, and the rear of the guide head 1 is flexibly connected to the flexible rod body 2 through the connecting line 3. The guide head 1 is made of hollow metal, and the tail of the guide head 1 is connected to the terminal block 10 through the thread. One end of the connecting line 3 passes through the terminal block 10 and is located inside the guide head 1. The connecting line 3 is either a 1mm steel wire rope or a nylon line.

[0027] In this invention, the flexible rod 2 is composed of multiple nylon segments 4 that are rotatably connected to each other. Each nylon segment 4 consists of a sleeve 5 and two guide rods 6 extending from one end. The two guide rods 6 are rotatably connected to both sides of the front sleeve 5, and the connecting line 3 passes through the middle of the nylon segment 4. The length of a single sleeve 5 is 2 cm. The sleeve 5 is provided with anti-torsion limiting protrusions 12 on both sides of the staggered guide rods 6.

[0028] In this utility model, the flexible rod 2 is located at one end of the sleeve 5 of the guide head 1. The top end of the sleeve 5 is provided with a connecting seat 11 that matches the shape of the guide head 1, and the connecting seat 11 abuts against the guide head 1. The end of the flexible rod 2 is provided with a connector 7. A magnetic positioning block 8 is embedded in the connector 7. The top of the connector 7 is fixedly connected to the connecting wire 3. The inside of the connector 7 is provided with a cavity 13 for receiving the connecting wire 3. The magnetic positioning block 8 is located on both sides of the cavity 13.

[0029] In this utility model, the bottom of the connector 7 is connected to the connector 9 by a thread. The connector 9 is composed of a base plate 14 and a clamping plate 15. The base plate 14 is provided with a U-shaped wire groove 16. The middle part of the wire groove is fixedly connected to the clamping plate 15 by screws 17.

[0030] In specific implementation, the guide head 1, with its spherical structure and stainless steel material, has good sliding and guiding properties within the pipe, enabling the connecting line 3 to move deeper into the pipe. The flexible rod 2 is composed of multiple rotatably connected nylon segments 4. This structure allows the flexible rod 2 to flexibly adapt to the bending and direction of the pipe. The connecting line 3 passes through the middle of the nylon segments 4. When the guide head 1 moves, the connecting line 3 connects within the nylon segments 4, enhancing the connection strength between the nylon segments 4 and preventing the nylon segments 4 from falling off, thus enabling the entire flexible rod 2 to pass smoothly through the pipe.

[0031] The magnetic positioning block 8 on the connector 7 can generate a magnetic attraction in the pipe through the external ferromagnetic component, providing a positioning reference for the cable and preventing the cable from shifting in the pipe; when fixing the cable to be threaded, the cable is placed in the U-shaped placement groove in the connector and fixed by the fastening clamp 15 and the tightening screw 17.

[0032] In use, the guide head 1 with the cable connected is inserted into the pipe at one end. The guide head 1 moves smoothly inside the pipe using its spherical structure. At the same time, the flexible connection between the connecting line 3 and the flexible rod 2 adapts to various turns inside the pipe. Finally, the person waiting at the other end of the pipe can pull the guide head 1 and the flexible rod 2 through the pipe to pull the cable out of the pipe and complete the cable threading operation.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A conduit cable puller for power construction, characterized in that: It includes a guide head (1) and a flexible rod (2); The guide head (1) is a stainless steel spherical structure, and the rear of the guide head (1) is flexibly connected to the flexible rod (2) through the connecting line (3); The flexible rod (2) consists of multiple nylon segments (4) that are rotatably connected to each other. Each nylon segment (4) consists of a sleeve (5) and two guide rods (6) extending from one end. The two guide rods (6) are rotatably connected to both sides of the front sleeve (5), and the connecting line (3) passes through the middle of the nylon segment (4). The flexible rod (2) has a connector (7) at its end, and a magnetic positioning block (8) is embedded in the connector (7). The bottom of the connector (7) is connected to a connector (9) by a thread.

2. A conduit cable puller for power construction according to claim 1, characterized in that: The guide head (1) is made of hollow metal, and the tail of the guide head (1) is connected to a terminal block (10) by a thread. One end of the connecting wire (3) passes through the terminal block (10) and is located inside the guide head (1).

3. A conduit cable puller for power construction according to claim 1, characterized in that: The flexible rod (2) is located at one end of the guide head (1) and the sleeve (5) has a connecting seat (11) at its top end that matches the shape of the guide head (1), and the connecting seat (11) abuts against the guide head (1).

4. A conduit cable puller for power construction according to claim 1, characterized in that: The length of a single sleeve (5) is 2-5cm, and the sleeve (5) is provided with a limiting protrusion (12) to prevent torsion on both sides of the guide rod (6).

5. A conduit cable puller for power construction according to claim 1, characterized in that: The connecting line (3) is either a 1-2mm steel wire rope or a nylon line.

6. A conduit puller for power construction according to claim 1, characterized in that: The top of the connector (7) is fixedly connected to the connecting wire (3), and the inside of the connector (7) is provided with a cavity (13) for receiving the connecting wire (3).

7. A conduit puller for power construction according to claim 1, characterized in that: The connector (9) is composed of a base plate (14) and a clamping plate (15), wherein the base plate (14) is provided with a U-shaped wire groove (16), and the middle part of the wire groove is fixedly connected to the clamping plate (15) by screws (17).