A municipal engineering cable threading device
By using a fastening assembly consisting of U-shaped rods, support plates, and elastic components, the problem of cumbersome cable tray connections in cable threading devices is solved, enabling rapid installation and disassembly and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU LONGSHANG CONSTR CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-07
AI Technical Summary
In existing municipal engineering cable insertion devices, the connection between the cable tray and the rotating shaft is fastened with bolts, which makes the installation and disassembly operations cumbersome and affects construction efficiency.
The fastening assembly uses a U-shaped rod, a support plate, a cover plate, and elastic components. The U-shaped rod is inserted into the socket and the support plate and cover plate are locked together with the elastic components, enabling the rapid installation and disassembly of the wire frame.
The installation and disassembly of the cable tray can be completed without additional tools, which significantly shortens the installation and disassembly time, improves the efficiency of cable construction, and reduces the intensity of manual operation.
Smart Images

Figure CN224472966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal construction, specifically a cable insertion device for municipal engineering. Background Technology
[0002] In the process of cable construction in municipal engineering, cable threading devices are important equipment for achieving efficient cable laying. Currently, common cable threading devices typically include components such as a crawler walking mechanism, a frame, a drive mechanism, and a cable tray. The drive mechanism rotates the cable tray to achieve the cable winding, unwinding, and threading operations.
[0003] In existing cable threading devices, the connection between the cable tray and the spool is mostly secured with bolts, that is, the square tube fixed at the end of the cable tray is locked to the inside of the spool with bolts. This connection method requires the use of tools such as wrenches to tighten or loosen the bolts during installation and disassembly, which is cumbersome, time-consuming, and affects the overall efficiency of cable construction. Therefore, it needs to be improved. Utility Model Content
[0004] The purpose of this utility model is to provide a cable insertion device for municipal engineering, so as to solve the problem of cumbersome cable rack assembly operation of conventional cable insertion devices mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a municipal engineering cable insertion device, comprising a tracked walking mechanism, a frame, a drive mechanism, and a cable frame. A pair of rotating shafts are rotatably mounted on the top of the frame, one of which is connected to the output end of the drive mechanism. The side wall of the rotating shaft is provided with a fastening assembly for supporting the cable frame. The fastening assembly is assembled from a support plate and a cover plate. A U-shaped rod is movably mounted on the side wall of the rotating shaft through an elastic member. The support plate and the cover plate are respectively provided with insertion holes for accommodating the U-shaped rod, so that the U-shaped rod can be embedded in the insertion hole and locked with the elastic member.
[0006] Preferably, a pair of bearing seats are fixedly installed on the top of the frame, and a pair of rotating shafts are respectively rotatably installed in the bearing seats.
[0007] Preferably, square tubes are fixedly installed at both ends of the wire frame, and both the support plate and the cover plate are U-shaped structures adapted to the square tubes.
[0008] Preferably, one end of the tray is fixedly connected to the rotating shaft, one end of the cover plate is rotatably mounted on one side of the tray, a slide rod is slidably mounted on the side wall of the rotating shaft near the insertion hole, the elastic member is a spring sleeved on the slide rod, and the end of the slide rod is provided with a tubular structure for accommodating the U-shaped rod, the U-shaped rod being rotatably mounted in the tubular structure.
[0009] Preferably, a reinforcing rib is fixedly installed at the connection between the rotating shaft and the support plate.
[0010] Preferably, protruding rods are fixedly installed on both sides of the U-shaped rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention utilizes a U-shaped rod, a support plate, a cover plate, and an elastic component to enable the installation and disassembly of cable trays without the need for additional tools. The U-shaped rod, in conjunction with the elastic component, allows the support plate and cover plate to tightly clamp the square tube at the end of the cable tray. Compared to traditional bolt fastening methods, this significantly reduces the installation and disassembly time of the cable tray, improves cable construction efficiency, and reduces manual labor intensity, thus possessing high practical value. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the frame of this utility model;
[0015] Figure 3 This is a three-dimensional structural diagram of the disassembled frame and wire frame of this utility model;
[0016] Figure 4 This is an enlarged structural diagram of the connection between the fastening component and the rotating shaft of this utility model.
[0017] Figure 5 This is an enlarged three-dimensional structural diagram of the fastening component of this utility model;
[0018] Figure 6 This is a three-dimensional structural diagram of the disassembled fastening component of this utility model.
[0019] In the diagram: 1. Tracked walking mechanism; 2. Frame; 3. Wire frame; 4. Bearing housing; 5. Drive mechanism; 6. Square tube; 7. Shaft; 8. Support plate; 9. Cover plate; 10. Slide rod; 11. U-shaped rod; 12. Spring; 13. Insertion hole; 14. Protruding rod; 15. Reinforcing rib. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-4 This utility model provides a technical solution: a municipal engineering cable threading device, including a tracked walking mechanism 1, a frame 2, a drive mechanism 5, and a cable frame 3. A pair of rotating shafts 7 are rotatably mounted on the top of the frame 2, and a pair of bearing seats 4 are fixedly mounted on the top of the frame 2. The pair of rotating shafts 7 are rotatably mounted in the bearing seats 4. One of the rotating shafts 7 is connected to the output end of the drive mechanism 5. A sprocket is fixedly mounted on the output end of the drive mechanism 5 and one of the rotating shafts 7. The two sprockets are connected by a transmission chain. This is existing technology. The drive motor of the drive mechanism 5 drives the transmission chain to rotate, pulling the cable to wind around the cable frame 3. The side wall of the rotating shaft 7 is provided with fastening components for supporting the cable frame 3.
[0022] Please see Figures 4-6 The fastening assembly consists of a support plate 8 and a cover plate 9. Square tubes 6 are fixedly installed at both ends of the wire frame 3. Both the support plate 8 and the cover plate 9 are U-shaped structures adapted to the square tubes 6. The rectangular cross-section of the square tubes 6 has a clear positioning direction, ensuring that the rotation axis of the wire frame 3 is coaxial with the rotating shaft 7 during installation. A U-shaped rod 11 is movably installed on the side wall of the rotating shaft 7 via an elastic member. One end of the support plate 8 is fixedly connected to the rotating shaft 7. A reinforcing rib 15 is fixedly installed at the connection between the rotating shaft 7 and the support plate 8. The reinforcing rib 15 enhances the component's resistance to bending or torsional deformation through rigid connection. The reinforcing rib 15 has a triangular structure; when the square tube 6 is inserted, the hypotenuse automatically guides it to align with the axis. One end of the cover plate 9 is rotatably installed on one side of the support plate 8. A sliding rod 10 is slidably installed on the side wall of the rotating shaft 7 near the insertion hole 13. A nut is screwed to one end of the sliding rod 10. A spring 12 is fitted onto the slide rod 10. Both ends of the spring 12 contact the nut and the rotating shaft 7, respectively. The end of the slide rod 10 has a tubular structure for accommodating the U-shaped rod 11. The U-shaped rod 11 is rotatably installed in the tubular structure. The support plate 8 and the cover plate 9 each have insertion holes 13 for accommodating the U-shaped rod 11, allowing the U-shaped rod 11 to be inserted into the insertion holes 13. The elastic components then lock the support plate 8 and the cover plate 9 together, forming a stable mechanical locking structure. This effectively prevents accidental loosening, ensuring the wire frame 3 remains stable during winding operation and improving the safety and reliability of the equipment. Protruding rods 14 are fixedly installed on both sides of the U-shaped rod 11. These protruding rods 14 are used to move the U-shaped rod 11 by hand.
[0023] When removing the wire frame 3, pull the slide bar 10 by hand until it disengages from the socket 13, and rotate it around the tubular structure of the slide bar 10 until it is away from the support plate 8 and the cover plate 9. This releases the restriction on the support plate 8 and the cover plate 9. After the cover plate 9 is flipped open, the wire frame 3 can be removed. The same reverse operation is performed during installation, which greatly shortens the disassembly and assembly time of the wire frame 3.
[0024] This application utilizes the combination of a U-shaped rod 11, a support plate 8, a cover plate 9, and an elastic component to enable the installation and disassembly of the cable frame 3 without the need for additional tools. The U-shaped rod 11, in conjunction with the elastic component, allows the support plate 8 and the cover plate 9 to tightly clamp the square tube 6 at the end of the cable frame 3. Compared to traditional bolt fastening methods, this significantly reduces the installation and disassembly time of the cable frame 3, improves cable construction efficiency, reduces manual labor intensity, and has high practical value.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cable insertion device for municipal engineering, comprising a tracked walking mechanism (1), a frame (2), a drive mechanism (5), and a cable tray (3), wherein a pair of rotating shafts (7) are rotatably mounted on the top of the frame (2), one of the rotating shafts (7) being connected to the output end of the drive mechanism (5), characterized in that: The side wall of the rotating shaft (7) is provided with a fastening assembly for supporting the wire frame (3). The fastening assembly is composed of a support plate (8) and a cover plate (9). A U-shaped rod (11) is movably installed on the side wall of the rotating shaft (7) through an elastic member. The support plate (8) and the cover plate (9) are respectively provided with insertion holes (13) for accommodating the U-shaped rod (11), so that the U-shaped rod (11) can be embedded in the insertion hole (13) and the support plate (8) and the cover plate (9) can be locked together with the elastic member.
2. The municipal engineering cable insertion device according to claim 1, characterized in that: A pair of bearing seats (4) are fixedly installed on the top of the frame (2), and a pair of rotating shafts (7) are respectively rotatably installed in the bearing seats (4).
3. A cable insertion device for municipal engineering according to claim 1, characterized in that: The wire frame (3) is fixedly installed with square tubes (6) at both ends. The support plate (8) and the cover plate (9) are both U-shaped structures adapted to the square tubes (6).
4. A cable insertion device for municipal engineering according to claim 1, characterized in that: One end of the tray (8) is fixedly connected to the rotating shaft (7), and one end of the cover plate (9) is rotatably installed on one side of the tray (8). A slide rod (10) is slidably installed on the side wall of the rotating shaft (7) near the insertion hole (13). The elastic member is a spring (12) sleeved on the slide rod (10). The end of the slide rod (10) is provided with a tubular structure for accommodating the U-shaped rod (11). The U-shaped rod (11) is rotatably installed in the tubular structure.
5. A municipal engineering cable insertion device according to claim 1, characterized in that: A reinforcing rib (15) is fixedly installed at the connection between the rotating shaft (7) and the support plate (8).
6. A municipal engineering cable insertion device according to claim 4, characterized in that: The U-shaped rod (11) has protruding rods (14) fixedly installed on both sides.