Cable guiding and threading equipment for electrical construction

Abstract

The invention discloses a cable guiding and threading device for electrical construction, and belongs to the technical field of electrical construction, the cable guiding and threading device comprises a traction head shell, a traction assembly, a lateral supporting assembly and an elastic locking assembly, the lateral supporting assembly is arranged in the traction head shell, the lateral supporting assembly comprises an unfolding driving mechanism, the unfolding driving mechanism is connected with the traction assembly, and the elastic locking assembly is connected with the traction assembly. The unfolding driving mechanism is used for driving the lateral supporting assembly to be unfolded and folded through pushing and pulling of the traction assembly, the elastic locking assembly is arranged at one end of the traction head shell and comprises a locking lantern ring, and the locking lantern ring is connected with the traction assembly and used for locking the lateral supporting assembly. One end of the traction assembly penetrates into the traction head shell, and the other end of the traction assembly is connected with the output end of the threading equipment. According to the invention, cables in a pipeline are separated by controlling unfolding of the lateral supporting assembly, an open threading space is provided for the traction head shell, and rapid and stable butt joint of the cables is realized through the elastic locking assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical construction, and specifically refers to a cable guiding and threading device for electrical construction. Background Art

[0002] When constructing the line, the wiring operator usually uses a wire threading device to extend from one end of the pipe to the other end of the pipe, then wraps one end of the wire to be wired around the wire threading device, pulls out the wire threading device, and pulls the wire out in the opposite direction along the wire threading path to complete the wiring.

[0003] However, when additional cable insertion is performed on the wire conduit that has already been installed inside, the traction end is inserted into the wire conduit with the existing cables inside. In particular, for cables with staggered distribution, the friction and obstruction of the cables inside the wire conduit on the traction end will increase, which may easily make it difficult for the traction end to penetrate the wire conduit, thereby making it difficult for the existing traction end to perform cable threading work on the wire conduit with the existing cables inside. In addition, the fixing method of winding and fixing on the traction end during the cable traction process is not effective, and the large resistance may easily cause the cable to fall off, thereby reducing the construction efficiency of the cable arrangement. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cable guiding and threading device for electrical construction, which separates the cables in the pipeline by controlling the expansion of the lateral support assembly, provides an open threading space for the traction head housing, and realizes rapid and stable docking of the cables through an elastic locking assembly.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a cable guiding and threading device for electrical construction, comprising a traction head shell, a traction assembly, a lateral support assembly and an elastic locking assembly, wherein the lateral support assembly is arranged in the traction head shell, the lateral support assembly comprises an unfolding drive mechanism, the unfolding drive mechanism is connected to the traction assembly, the unfolding drive mechanism is used to drive the lateral support assembly to unfold and fold by pushing and pulling the traction assembly, the elastic locking assembly is arranged at one end of the traction head shell, the elastic locking assembly comprises a locking ring, the locking ring is connected to the traction assembly, one end of the traction assembly is passed through the traction head shell and the other end is connected to the output end of the threading device.

[0006] Furthermore, a traction port is opened at one end of the traction head shell, and the traction assembly includes a traction cable, an adapter and a traction rod. One end of the traction cable passes through the traction port and is connected to the output end of the threading device, and the other end of the traction cable is connected to one end of the traction rod through the adapter. The other end of the traction rod extends into the traction head shell, and a limiting portion is set at the other end of the traction rod.

[0007] Furthermore, the unfolding drive mechanism is arranged on the traction rod, and the unfolding drive mechanism includes: a support plate, a traction plate and a traction tooth plate, wherein the support plate is fixedly sleeved on one end of the traction rod, the traction plate is fixedly connected to both ends of the support plate, a limiting slide bar is passed through one end of the traction plate, the limiting slide bar is fixedly connected to one end of the traction tooth plate, a limiting spring is sleeved on the limiting slide bar, one end of the limiting spring abuts against one end of the traction tooth plate, and the other end of the limiting spring abuts against the traction plate.

[0008] Furthermore, the traction tooth plate is meshed with one side of the transmission gear, and the transmission gear is symmetrically arranged on the upper and lower inner walls of the traction head housing through a mounting seat.

[0009] Furthermore, the lateral support assembly also includes an unfolding transmission member and a support member, wherein the unfolding transmission member is arranged in the traction head housing, the unfolding transmission member is movably sleeved on the traction rod, the upper and lower surfaces of the unfolding transmission member are provided with a first rack portion, the first rack portion is meshed with the other side of the transmission gear, and second rack portions are opened on both sides of the unfolding transmission member, and the support member is symmetrically distributed on both sides of the traction head housing, the support member includes an engaging portion, a rocker rod and a roller, wherein the engaging portion is rotatably arranged on the side opening, the engaging portion is meshed with the second rack portion, the side openings are opened on both sides of the traction head housing, one end of the rocker rod is fixedly connected to the engaging portion, and the roller is rotatably arranged on the other end of the rocker rod.

[0010] Furthermore, the elastic locking assembly includes a cable docking port, a locking collar and a supporting spring, wherein the cable docking port is fixedly connected to the other end of the traction head housing, a limiting protrusion is arranged at the end of the cable docking port, and an installation port is provided at the upper and lower sides of the cable docking port, a card block is rotatably connected in the installation port, a driven meshing portion is arranged at one end of the card block, and a gear portion is arranged at the other end of the card block, the locking collar is movably sleeved on the cable docking port, and a connecting ring, a pull rod and a locking meshing portion are arranged on the locking collar, wherein the locking meshing portion The part is opened on the upper and lower inner walls of the locking collar, the locking meshing part is meshed with the driven meshing part, the pull rod is distributed up and down on one side of the locking collar, one end of the pull rod is fixedly connected to one side of the locking collar, the other end of the pull rod passes through the through hole and is fixedly connected to the extension part, the extension part is opened on the upper and lower ends of the connecting ring, the connecting ring is movably sleeved on the other end of the traction rod and movably abuts against the limiting part, the support spring is sleeved on the cable docking port, one end of the support spring abuts against the limiting protrusion, and the other end of the support spring is connected to the locking collar.

[0011] Furthermore, a cylindrical protrusion is provided on one side surface of the traction plate, and the cylindrical protrusion is slidably connected to a slide groove, and the slide groove is opened on both side walls of the traction head housing.

[0012] Furthermore, there are two support members on each side, and the two support members are distributed front and back and are at the same swing angle.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows: The lateral support assembly is deployed under the traction assembly to separate the cables in the pipeline and press them under the traction head housing, providing an open threading space for the cables, effectively avoiding complex and crisscrossed lines from blocking the smooth threading. When the cables are docked and pulled, the elastic locking assembly is used to achieve fast and stable docking of the cables, and the pulling and cooperation of the traction assembly further turns the elastic locking assembly into a rigid lock, so that the cables are stably pulled and the smooth threading is ensured.

[0014] The traction rod is connected with the traction cable through the adapter, and can be used as the driving part of the lateral support assembly and the elastic locking assembly. The traction cable pushes and pulls the traction rod to realize the expansion and contraction of the lateral support assembly, which can effectively realize that when the traction head shell is extended into the pipeline, the support member provided with rollers is kept expanded, and the line is pressed under the traction head shell to separate it, which provides convenience for the smooth threading of the traction head shell. When the traction head shell is connected to the cable to be threaded, after the cable is connected through the elastic locking assembly, the traction rod further pulls the locking ring through the pulling force of the traction cable, so that it is always tightly fitted to one end of the traction head shell during the threading process, so that the elastic locking becomes a hard locking, and the locking mechanism of the locking ring is prevented from loosening due to friction, thereby ensuring the stability of cable traction.

[0015] The elastically retractable limiting slide bar mechanism used between the traction plate and the traction tooth plate can allow the traction tooth plate to elastically contract on the traction plate through the limiting slide bar when the support member is unfolded and threaded and is subjected to hard collision and extrusion or pipeline corners during the unfolding process of the traction rod controlling the unfolding drive mechanism in cooperation with the lateral support assembly. This allows the support member to adaptively unfold and contract to adapt to various situations in the pipeline.

[0016] The locking engagement portion on the locking collar cooperates with the clamping block installed on the cable docking port, so that the cables can be locked by directly inserting them when docking. The clamping block with a gear portion cooperates with its structure to effectively prevent the cable from slipping and ensure the stable connection of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a cable guiding and threading device for electrical construction proposed by the present invention; Figure 2 This is a structural disassembly diagram of a cable guiding and threading device for electrical construction proposed by the present invention; Figure 3 This is a structural schematic diagram of a lateral support assembly of a cable guiding and threading device for electrical construction proposed by the present invention; Figure 4 A three-dimensional structural diagram of a traction assembly of a cable guiding and threading device for electrical construction proposed by the present invention; Figure 5 A three-dimensional structural diagram of an unfolding transmission member of a cable guiding and threading device for electrical construction proposed by the present invention; Figure 6 A three-dimensional structural diagram of a support member of a cable guiding and threading device for electrical construction proposed by the present invention; Figure 7 A three-dimensional structural diagram of a locking collar of a cable guiding and threading device for electrical construction proposed by the present invention; Figure 8 A schematic cross-sectional view of a locking collar of a cable guiding and threading device for electrical construction proposed by the present invention; Fig. 9 A schematic cross-sectional view of a traction head housing of a cable guiding and threading device for electrical construction proposed by the present invention; Fig.10 This is a cross-sectional view of the internal structure of a cable guiding and threading device for electrical construction proposed by the present invention; Fig.11 for Fig.10 A magnified view of the structure in the middle.

[0018] Among them, 1. traction head housing; 2. traction assembly; 3. lateral support assembly; 4. unfolding drive mechanism; 5. unfolding transmission member; 6. support member; 7. elastic locking assembly; 8. traction cable; 9. adapter; 10. traction rod; 11. support plate; 12. traction plate; 13. limit spring; 14. limit slide bar; 15. traction tooth plate; 16. columnar protrusion; 17. limit part; 18. second rack part; 19. first rack part; 2 0. Meshing part; 21. Rocker; 22. Roller; 23. Locking collar; 24. Pull rod; 25. Connecting ring; 26. Locking meshing part; 27. Cable docking port; 28. Towing port; 29. ​​Block; 30. Mounting port; 31. Limiting protrusion; 32. Support spring; 33. Slide groove; 34. Side opening; 35. Transmission gear; 36. Mounting seat; 37. Extension part; 38. Driven meshing part; 39. Through hole; 40. Gear tooth part.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figure 1-Figure 11 As shown, the present invention proposes a cable guiding and threading device for electrical construction, comprising a traction head housing 1, a traction assembly 2, a lateral support assembly 3 and an elastic locking assembly 7, wherein the lateral support assembly 3 is arranged in the traction head housing 1, the lateral support assembly 3 includes an unfolding drive mechanism 4, the unfolding drive mechanism 4 is connected to the traction assembly 2, the unfolding drive mechanism 4 is used to drive the lateral support assembly 3 to unfold and fold by pushing and pulling the traction assembly 2, the elastic locking assembly 7 is arranged at one end of the traction head housing 1, the elastic locking assembly 7 includes a locking collar 23, the locking collar 23 is connected to the traction assembly 2, one end of the traction assembly 2 is penetrated in the traction head housing 1 and the other end is connected to the output end of the threading device.

[0023] In one embodiment of the present invention, a traction port 28 is opened at one end of the traction head housing 1, and the traction assembly 2 includes a traction cable 8, an adapter 9 and a traction rod 10. One end of the traction cable 8 passes through the traction port 28 and is connected to the output end of the threading device. The other end of the traction cable 8 is connected to one end of the traction rod 10 through the adapter 9. The other end of the traction rod 10 extends into the traction head housing 1, and a limiting portion 17 is set at the other end of the traction rod 10.

[0024] In one embodiment of the present invention, the unfolding drive mechanism 4 is arranged on the traction rod 10, and the unfolding drive mechanism 4 includes: a support plate 11, a traction plate 12 and a traction tooth plate 15, wherein the support plate 11 is fixedly sleeved on one end of the traction rod 10, the traction plate 12 is fixedly connected to both ends of the support plate 11, a limiting slide bar 14 is passed through one end of the traction plate 12, and the limiting slide bar 14 is fixedly connected to one end of the traction tooth plate 15, and a limiting spring 13 is sleeved on the limiting slide bar 14, one end of the limiting spring 13 abuts against one end of the traction tooth plate 15, and the other end of the limiting spring 13 abuts against the traction plate 12.

[0025] In one embodiment of the present invention, the traction tooth plate 15 meshes with one side of the transmission gear 35 , and the transmission gear 35 is symmetrically arranged on the upper and lower inner walls of the traction head housing 1 through a mounting seat 36 .

[0026] In one embodiment of the present invention, the lateral support assembly 3 also includes an unfolding transmission member 5 and a support member 6, wherein the unfolding transmission member 5 is arranged in the traction head housing 1, and the unfolding transmission member 5 is movably sleeved on the traction rod 10, and the upper and lower surfaces of the unfolding transmission member 5 are provided with a first rack portion 19, and the first rack portion 19 is meshed with the other side of the transmission gear 35, and second rack portions 18 are opened on both sides of the unfolding transmission member 5, and the support member 6 is symmetrically distributed on both sides of the traction head housing 1, and the support member 6 includes a meshing portion 20, a rocker rod 21 and a roller 22, wherein the meshing portion 20 is rotatably arranged on the side opening 34, and the meshing portion 20 is meshed with the second rack portion 18, and the side opening 34 is opened on both sides of the traction head housing 1, one end of the rocker rod 21 is fixedly connected to the meshing portion 20, and the roller 22 is rotatably arranged on the other end of the rocker rod 21.

[0027] In one embodiment of the present invention, the elastic locking assembly 7 includes a cable docking port 27, a locking collar 23 and a support spring 32, wherein the cable docking port 27 is fixedly connected to the other end of the traction head housing 1, and a limiting protrusion 31 is provided at the end of the cable docking port 27. The upper and lower sides of the cable docking port 27 are provided with mounting ports 30, and a card block 29 is rotatably connected in the mounting port 30. A driven meshing portion 38 is provided at one end of the card block 29, and a gear portion 40 is provided at the other end of the card block 29. The locking collar 23 is movably sleeved on the cable docking port 27, and a connecting ring 25, a pull rod 24 and a locking meshing portion 26 are provided on the locking collar 23. The tight meshing portion 26 is provided on the upper and lower inner walls of the locking collar 23, the locking meshing portion 26 meshes with the driven meshing portion 38, the pull rod 24 is distributed up and down on one side of the locking collar 23, one end of the pull rod 24 is fixedly connected to one side of the locking collar 23, the other end of the pull rod 24 passes through the through hole 39 and is fixedly connected to the extension portion 37, the extension portion 37 is provided on the upper and lower ends of the connecting ring 25, the connecting ring 25 is movably sleeved on the other end of the traction rod 10 and movably abuts against the limiting portion 17, the support spring 32 is sleeved on the cable docking port 27, one end of the support spring 32 abuts against the limiting protrusion 31, and the other end of the support spring 32 is connected to the locking collar 23.

[0028] In one embodiment of the present invention, a cylindrical protrusion 16 is disposed on one side surface of the traction plate 12 . The cylindrical protrusion 16 is slidably connected to a slide groove 33 . The slide groove 33 is provided on both side walls of the traction head housing 1 .

[0029] In one embodiment of the present invention, two support members 6 are provided on each side, and the two support members 6 are distributed front and back and are at the same swing angle.

[0030] Working principle: When threading the cables to be threaded, the relevant personnel first connect the traction head housing 1 with the threading equipment (such as an electric threading machine) through the traction cable 8, and then extend the traction head housing 1 into the opening at one end of the pipeline. Then the relevant personnel manually push the traction cable 8 into the traction head housing 1 to unfold the lateral support assembly 3, so that the support members 6 on both sides are unfolded and pressed against the inner walls on both sides of the pipeline, so that the lines in the pipeline are pressed against the bottom of the traction head housing 1 and separated by the support members 6 on both sides. Then the relevant personnel use the threading equipment to push the traction cable 8 and then push the traction head housing 1 in the pipeline to the end to be threaded. In this process, as the threading equipment continues to push the traction cable 8, the traction rod 10 continues to push the unfolding drive mechanism 4 provides thrust, so that the traction plate 12 cooperates with the limiting slide bar 14 and the limiting spring 13 to provide elastic support for the traction tooth plate 15, and then the traction tooth plate 15 drives the first rack portion 19 to drive the unfolding transmission member 5 to move toward the traction port 28 through rolling engagement with the transmission gear 35, so that the second rack portions 18 arranged on both sides of the unfolding transmission member 5 provide elastic support for the swing rod 21 to drive the roller 22 to unfold through rolling engagement with the engagement portion 20, so that the roller 22 is continuously attached to the inner wall of the pipeline, ensuring that the line in the pipeline is continuously pressed against the bottom of the traction head housing 1, until the traction head housing 1 is pushed to the other end of the pipeline, the cable to be threaded can be docked with the cable docking port 27 at the other end of the traction head housing 1, so as to facilitate the back-pulling of the wiring.

[0031] When the cables to be threaded are docked and fixed, the relevant personnel can directly insert one end of the cable into the cable docking port 27. Under the push of the cable, the symmetrically arranged clamping block 29 rotates to one side and is squeezed by the cable. When the cable generates a pulling force for withdrawal, the friction between the gear portion 40 on the clamping block 29 and the surface of the cable causes the clamping block 29 to rotate in the opposite direction for reset. Thus, driven by the gear portion 40 of the arc-shaped structure of the clamping block 29, the cable exerting the withdrawal force is clamped and fixed. The greater the cable withdrawal force, the greater the opposite clamping force of the clamping block 29. In this process, the support spring 32 sleeved on the cable docking port 27 provides elastic support for the locking ring 23 to keep it clamped on the cable. After the cable is installed, the traction cable 8 can be pulled back by the threading device to thread the cable. At this time, as the traction cable 8 is pulled back, the traction rod 10 drives the lateral support assembly 3 to be retracted, so that the support members 6 on both sides are folded, reducing the friction with the pipeline, making the cable pull back faster, and at the same time, the traction rod 10 pulls the connecting ring 25 through the limit part 17, and the continuous pulling causes the connecting ring 25 to pull the pull rod 24 through the extension part 37, so that the pull rod 24 pulls the locking ring 23 back through the through hole 39 and continues to be close to the traction head shell 1, so that in the process of the traction head shell 1 driving the cable connected to it to pull back and thread, the locking ring 23 that elastically locks the cable rotates under the continuous pulling force. The cable is continuously and rigidly locked, so that during the process of pulling the cable back through the threading, the friction of the internal line of the pipeline on the locking ring 23 will not cause it to move and loosen the lock on the cable, thereby ensuring the stability of the cable docking. After the cable is threaded through and comes out from the opening at one end of the pipeline, the threading equipment stops applying the pulling force, and the relevant personnel can manually pull the locking ring 23 in the direction of the limit protrusion 31, and then control the block 29 to cancel the lock on the cable, and then the cable can be taken out. Then the locking ring 23 can be released and reset under the elastic support of the support spring 32 to facilitate the next quick docking of the cable.

[0032] To sum up, the present invention is a cable guiding and threading equipment for electrical construction: the traction assembly controls the deployment of the lateral support assembly to separate the cables in the pipeline and press them under the traction head housing to provide an open threading space for them, effectively avoiding the criss-crossing and complex lines blocking the smooth threading. When the cables are docked and pulled, the elastic locking assembly is used to achieve rapid and stable docking of the cables, and the pulling and cooperation of the traction assembly makes the elastic locking assembly further become a rigid lock, so that the cables can be stably pulled, ensuring the smooth threading. The traction rod is connected with the traction cable through the adapter, and can be used as the driving part of the lateral support assembly and the elastic locking assembly. The traction cable pushes and pulls the traction rod to realize the expansion and contraction of the lateral support assembly, which can effectively realize that when the traction head shell is extended into the pipeline, the support member provided with rollers is kept expanded, and the line is pressed under the traction head shell to separate it, which provides convenience for the smooth threading of the traction head shell. When the traction head shell is connected to the cable to be threaded, after the cable is connected through the elastic locking assembly, the traction rod further pulls the locking ring through the pulling force of the traction cable, so that it is always tightly fitted to one end of the traction head shell during the threading process, so that the elastic locking becomes a hard locking, and the locking mechanism of the locking ring is prevented from loosening due to friction, thereby ensuring the stability of cable traction. The elastically retractable limit slide bar mechanism used between the traction plate and the traction tooth plate can make the traction tooth plate elastically contract on the traction plate through the limit slide bar when the support is unfolded and threaded and is subjected to hard collision and extrusion or pipeline corners during the unfolding process of the traction rod controlling the unfolding drive mechanism and cooperating with the lateral support assembly, so that the support can be adaptively unfolded and retracted to adapt to various situations in the pipeline. The locking meshing part on the locking collar cooperates with the card block installed on the cable docking port, so that the cable can be directly inserted to achieve locking when docking. The card block with the gear part cooperates with its structure to effectively prevent the cable from slipping off and ensure the stable connection of the cable.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0035] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A cable guiding and threading device for electrical construction, characterized in that: It comprises a traction head housing (1), a traction assembly (2), a lateral support assembly (3) and an elastic locking assembly (7), wherein: The lateral support assembly (3) is arranged in the traction head housing (1), and the lateral support assembly (3) comprises an unfolding drive mechanism (4), the unfolding drive mechanism (4) is connected to the traction assembly (2), and the unfolding drive mechanism (4) is used to drive the lateral support assembly (3) to unfold and fold by pushing and pulling the traction assembly (2); The elastic locking assembly (7) is arranged at one end of the traction head housing (1), and the elastic locking assembly (7) comprises a locking collar (23), and the locking collar (23) is connected to the traction assembly (2); One end of the traction component (2) is inserted into the traction head housing (1) and the other end is connected to the output end of the threading device.

2. The cable guiding and threading device for electrical construction according to claim 1, characterized in that: A traction opening (28) is provided at one end of the traction head housing (1); the traction assembly (2) comprises a traction cable (8), an adapter (9) and a traction rod (10); one end of the traction cable (8) passes through the traction opening (28) and is connected to an output end of a threading device; the other end of the traction cable (8) is connected to one end of the traction rod (10) via the adapter (9); the other end of the traction rod (10) extends into the traction head housing (1); and a limiting portion (17) is provided at the other end of the traction rod (10).

3. The cable guiding and threading device for electrical construction according to claim 2, characterized in that: The unfolding drive mechanism (4) is arranged on a traction rod (10), and the unfolding drive mechanism (4) comprises: a support plate (11), a traction plate (12) and a traction tooth plate (15), wherein: The support plate (11) is fixedly sleeved on one end of the traction rod (10); The traction plate (12) is fixedly connected to both ends of the support plate (11); a limiting slide bar (14) is passed through one end of the traction plate (12); the limiting slide bar (14) is fixedly connected to one end of the traction tooth plate (15); a limiting spring (13) is sleeved on the limiting slide bar (14); one end of the limiting spring (13) abuts against one end of the traction tooth plate (15); and the other end of the limiting spring (13) abuts against the traction plate (12).

4. The cable guiding and threading device for electrical construction according to claim 3, characterized in that: The traction tooth plate (15) meshes with one side of a transmission gear (35), and the transmission gear (35) is symmetrically arranged on the upper and lower inner walls of the traction head housing (1) via a mounting seat (36).

5. The cable guiding and threading device for electrical construction according to claim 4, characterized in that: The lateral support assembly (3) further comprises an unfolding transmission member (5) and a support member (6), wherein: The unfolding transmission member (5) is arranged in the traction head housing (1), the unfolding transmission member (5) is movably sleeved on the traction rod (10), the upper and lower surfaces of the unfolding transmission member (5) are provided with first rack portions (19), the first rack portion (19) is meshed with the other side of the transmission gear (35), and second rack portions (18) are provided on both sides of the unfolding transmission member (5); The support member (6) is symmetrically distributed on both sides of the traction head housing (1), and the support member (6) comprises a meshing portion (20), a swing rod (21) and a roller (22), wherein the meshing portion (20) is rotatably arranged on the side opening (34), the meshing portion (20) is meshed with the second rack portion (18), the side opening (34) is opened on both sides of the traction head housing (1), one end of the swing rod (21) is fixedly connected to the meshing portion (20), and the roller (22) is rotatably arranged on the other end of the swing rod (21).

6. The cable guiding and threading device for electrical construction according to claim 5, characterized in that: The elastic locking assembly (7) comprises a cable docking port (27), a locking collar (23) and a support spring (32), wherein: The cable docking port (27) is fixedly connected to the other end of the traction head housing (1); a limiting protrusion (31) is provided at the end of the cable docking port (27); installation ports (30) are provided at the upper and lower sides of the cable docking port (27); a clamping block (29) is rotatably connected in the installation port (30); a driven meshing portion (38) is provided at one end of the clamping block (29); and a gear portion (40) is provided at the other end of the clamping block (29); The locking collar (23) is movably sleeved on the cable docking port (27); the locking collar (23) is provided with a connecting collar (25), a pull rod (24) and a locking meshing portion (26); wherein the locking meshing portion (26) is provided on the upper and lower inner walls of the locking collar (23); the locking meshing portion (26) is meshed with the driven meshing portion (38); the pull rod (24) is distributed on one side of the locking collar (23) from top to bottom; one end of the pull rod (24) is fixedly connected to one side of the locking collar (23); the other end of the pull rod (24) passes through the through hole (39) and is fixedly connected to the extension portion (37); the extension portion (37) is provided on the upper and lower ends of the connecting collar (25); the connecting collar (25) is movably sleeved on the other end of the traction rod (10) and movably abuts against the limiting portion (17); The support spring (32) is sleeved on the cable docking port (27), one end of the support spring (32) abuts against the limiting protrusion (31), and the other end of the support spring (32) is connected to the locking collar (23).

7. The cable guiding and threading device for electrical construction according to claim 6, characterized in that: A cylindrical protrusion (16) is provided on one side surface of the traction plate (12), and the cylindrical protrusion (16) is slidably connected to a slide groove (33), and the slide groove (33) is provided on both side walls of the traction head housing (1).

8. The cable guiding and threading device for electrical construction according to claim 7, characterized in that: A total of two support members (6) are provided on each side, and the two support members (6) are distributed front and back and are at the same swing angle.

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