Threading apparatus for laying cables

Abstract

The utility model relates to the technical field of cable laying, in particular to a threading device for laying cables. Comprising a base box with openings in the two sides, a plurality of square pipes which are sequentially connected end to end are arranged above the base box, two mounting plates are fixedly mounted at the top of the base box, two U-shaped limiting clamping blocks are slidably mounted at the tops of the mounting plates, and the U-shaped limiting clamping blocks slidably sleeve the corresponding square pipes; first grooves are formed in the inner walls of the U-shaped limiting clamping blocks, rolling wheels are rotationally installed in the first grooves, and one sides of the rolling wheels extend out of the first grooves and make contact with the corresponding square pipes. By means of the simple splicing and clamping limiting structure, the threading guide rod can be spliced and combined conveniently, the length of the guide rod can be adjusted, cable laying operation can be conducted on a long pipeline conveniently, the actual requirement for cable threading and wiring can be met, and great convenience is brought to wiring work of electric power engineering.

Description

Technical Field

[0001] This utility model relates to the field of cable laying technology, specifically a cable threader for laying cables. Background Technology

[0002] During power construction, cable laying is frequently required. Cable laying environments are diverse, often necessitating the passage of cables through conduits. Due to limited space and difficulty for personnel to access, cable pullers are needed to guide cables through conduits. Currently, telescopic poles are commonly used. Existing technology discloses a cable puller for cable laying, authorized by publication number CN220732216U. This puller includes a telescopic pole with a camera mounted at its front end; the camera is electrically connected to one end of a data cable, and the other end of the data cable has a data interface for connecting to other electronic devices; the telescopic pole has several cable fixing components for securing the cable. Using this cable puller allows for visualization of the cable pulling process.

[0003] However, existing cable pullers used for laying cables have been found to have limited working distances and lack assembly and combination capabilities, making it difficult to lay cables through long pipes. This makes it difficult to meet the actual needs of cable laying and has caused many problems for power engineering wiring work. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a cable threader for laying cables, which facilitates the splicing and combination of cable threading guide rods, allows for adjustment of the guide rod length, facilitates cable laying operations in longer pipes, meets the actual needs of cable conduit wiring, greatly facilitates wiring work in power engineering, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cable threader for laying cables, comprising a base box with openings on both sides, a plurality of square tubes connected end-to-end on the top of the base box, two mounting plates fixedly installed on the top of the base box, and two U-shaped limiting clamps slidably installed on the top of the mounting plates. The U-shaped limiting clamps are slidably fitted onto the corresponding square tubes, and a first groove is formed on the inner wall of the U-shaped limiting clamp. A roller is rotatably installed in the first groove, and one side of the roller extends out of the first groove and contacts the corresponding square tube. A first motor is provided on the top of the U-shaped limiting clamp, and the output shaft of the first motor extends into the first groove. The mounting plate is fixed to the top of the roller. Two grooves are formed on the top of the mounting plate, and sliders are slidably installed within these grooves. The sliders are fixed to the bottom of the corresponding U-shaped limiting clamps. A second motor is located on one side of the mounting plate, and a first bidirectional lead screw is mounted on the output shaft of the second motor. The first bidirectional lead screw is threaded through the two corresponding sliders. A cable clamp is fixedly installed at the bottom of the square tube away from the base box, and a cable passes through the cable clamp. A limiting wheel is located on one side of the base box, and the cable is wound around the limiting wheel. Two rectangular tubes are located inside the square tube, and a rod is fixedly installed inside one of the rectangular tubes. The rod is slidably installed inside the corresponding rectangular tube.

[0006] To facilitate quick splicing and fixing of square tubes:

[0007] As a further improvement to the above technical solution: the rectangular tube further includes two first through holes, which are respectively opened on the top and bottom inner walls of the rectangular tube. The first through holes penetrate the square tube. The bottom and top of the two square tubes connected at one end are respectively provided with a first connecting plate and a second connecting plate. Two pins are fixedly installed on the top of the first connecting plate. The pins slide through the corresponding two first through holes. Two slots are opened at the bottom of the second connecting plate. The top of the pins slides in the corresponding slots. A second groove is opened at the bottom of the second connecting plate. Circular holes are penetrated on both sides of the inner wall of the second groove. Internally threaded cylinders are slidably installed in the circular holes. The internally threaded cylinders slide through the corresponding pins. The two internally threaded cylinders are internally threaded with the same second double-acting screw. The second double-acting screw rotates through the second groove and is provided with a first bevel gear. A rotating rod is provided at the top of the second connecting plate. The bottom end of the rotating rod extends into the second groove and is provided with a second bevel gear. The second bevel gear meshes with the first bevel gear.

[0008] The beneficial effects of this improvement are: this design facilitates the quick splicing and fixing of square tubes, and makes it easier to adjust the number of square tube splices according to actual needs, and facilitates the threading operation of longer pipes.

[0009] To facilitate clamping the cable ends:

[0010] As a further improvement to the above technical solution: the cable clamp further includes a first arc-shaped clamping block, which is fixedly installed on the top inner wall of the cable clamp, and a second arc-shaped clamping block is slidably installed inside the cable clamp. Both the first and second arc-shaped clamping blocks are in contact with the cable. A lead screw is threaded through the bottom of the cable clamp, and the top end of the lead screw is rotatably installed at the bottom of the second arc-shaped clamping block.

[0011] The beneficial effect of this improvement is that this setting makes it easier to clamp the cable end, thereby facilitating cable pulling.

[0012] To prevent the base box from tipping over:

[0013] As a further improvement to the above technical solution: multiple counterweights are slidably installed inside the base box, and an installation groove is provided on one side of the mounting plate. The installation groove is connected to two corresponding sliding grooves, and the first bidirectional lead screw is rotatably installed in the installation groove.

[0014] The beneficial effect of this improvement is that by setting a counterweight, it is easier to prevent the base box from tipping over.

[0015] To facilitate limiting the output shaft of the first motor:

[0016] As a further improvement to the above technical solution: a second through hole is provided on the top inner wall of the first groove, and the output shaft of the first motor rotates through the second through hole.

[0017] The beneficial effect of this improvement is that by setting a second through hole, it is easier to limit the output shaft of the first motor.

[0018] To facilitate the installation of the limit wheels:

[0019] As a further improvement to the above technical solution: a U-shaped bracket is provided on one side of the base box, and the limiting wheel is rotatably installed in the U-shaped bracket.

[0020] The beneficial effect of this improvement is that by setting a U-shaped bracket, it is easier to install the limit wheel.

[0021] To facilitate the support and limiting of the second bidirectional lead screw:

[0022] As a further improvement to the above technical solution: a third through hole is provided on the pin, the internal threaded cylinder slides through the third through hole, a retaining plate is provided in the round hole, the second bidirectional screw rotates through the two retaining plates, a limiting groove is opened on the top inner wall of the round hole, a limiting block is slidably installed in the limiting groove, and the limiting block is fixed on the internal threaded cylinder.

[0023] The beneficial effect of this improvement is that by setting a retaining plate, it is easier to support and limit the second bidirectional lead screw.

[0024] To facilitate the lifting and lowering of the lead screw:

[0025] As a further improvement to the above technical solution: the bottom inner wall of the cable clamp has a threaded through hole, and the lead screw thread passes through the threaded through hole.

[0026] The beneficial effect of this improvement is that by setting a threaded through hole, the lifting and lowering movement of the lead screw is facilitated.

[0027] The beneficial effects of this utility model are as follows: through a simple splicing and clamping limiting structure, it is easy to splice and combine the wire guide rod, and the length of the guide rod can be adjusted, which facilitates the cable laying operation in long pipes, meets the actual needs of cable conduit wiring, and brings great convenience to the wiring work of power engineering. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0029] Figure 2 This is a side sectional view of the present invention.

[0030] Figure 3 This utility model Figure 1 A magnified structural diagram of part A in the middle;

[0031] Figure 4 This utility model Figure 1 A magnified structural diagram of part B in the middle section;

[0032] Figure 5 This utility model Figure 3 A magnified structural diagram of section C;

[0033] Figure 6 This utility model Figure 5 A magnified structural diagram of section D;

[0034] Figure 7 This is a three-dimensional cross-sectional assembly structure diagram of the U-shaped limiting clamp and the slider in this utility model;

[0035] Figure 8 This is a side view of the cable clamp structure in this utility model.

[0036] In the diagram: 1. Base box; 2. Square tube; 3. Mounting plate; 4. U-shaped limiting clamp; 5. First groove; 6. Roller; 7. First motor; 8. Slide groove; 9. Slider; 10. First double-acting lead screw; 11. Second motor; 12. Cable clamp; 13. Cable; 14. Limiting wheel; 15. First arc-shaped clamp; 16. Second arc-shaped clamp; 17. Lead screw; 18. Rectangular cylinder; 19. First through hole; 20. Insert rod; 21. First connecting plate; 22. Pin; 23. Second connecting plate; 24. Slot; 25. Round hole; 26. Internally threaded cylinder; 27. Second groove; 28. Second double-acting lead screw; 29. ​​First bevel gear; 30. Rotating rod; 31. Second bevel gear; 32. Counterweight. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0038] like Figure 1-8As shown, a cable threader for laying cables includes a base box 1 with openings on both sides. Multiple square tubes 2 connected end-to-end are arranged on the top of the base box 1. Two mounting plates 3 are fixedly installed on the top of the base box 1. Two U-shaped limiting clamps 4 are slidably installed on the top of the mounting plates 3. The U-shaped limiting clamps 4 are slidably fitted onto the corresponding square tubes 2. A first groove 5 is formed on the inner wall of the U-shaped limiting clamp 4. A roller 6 is rotatably installed in the first groove 5. One side of the roller 6 extends out of the first groove 5 and contacts the corresponding square tube 2. A first motor 7 is provided on the top of the U-shaped limiting clamp 4. The output shaft of the first motor 7 extends into the first groove 5 and is fixed to the top of the roller 6. The top of the mounting plates 3 is open... Two sliding grooves 8 are provided, and sliders 9 are slidably installed in the sliding grooves 8. The sliders 9 are fixed to the bottom of the corresponding U-shaped limiting clamps 4. A second motor 11 is provided on one side of the mounting plate 3. A first bidirectional lead screw 10 is provided on the output shaft of the second motor 11. The first bidirectional lead screw 10 is threaded through the two corresponding sliders 9. A cable clamp 12 is fixedly installed at the bottom of the square tube 2 away from the base box 1. A cable 13 passes through the cable clamp 12. A limiting wheel 14 is provided on one side of the base box 1. The cable 13 is wound around the limiting wheel 14. Two rectangular tubes 18 are provided inside the square tube 2. An insertion rod 20 is fixedly installed in one of the rectangular tubes 18. The insertion rod 20 is slidably installed in the corresponding rectangular tube 18. The single splicing and clamping limiting structure facilitates the splicing and combination of the cable guide rod, allowing for adjustment of the guide rod length. This facilitates cable laying operations in longer pipes, meeting the actual needs of cable conduit wiring and greatly simplifying wiring work in power engineering. The rectangular tube 18 also includes two first through holes 19, which are respectively opened on the top and bottom inner walls of the rectangular tube 18. The first through holes 19 penetrate the square tube 2. The bottom and top of the two connected ends of the two square tubes 2 are respectively provided with a first connecting plate 21 and a second connecting plate 23. Two pins 22 are fixedly installed on the top of the first connecting plate 21, and the pins 22 slide through the corresponding two first through holes 19. The bottom of the second connecting plate 23 has two slots 24, and the top end of the pin 22 is slidably installed in the corresponding slot 24. The bottom of the second connecting plate 23 has a second groove 27, and the inner walls of both sides of the second groove 27 have through holes 25. An internally threaded cylinder 26 is slidably installed in the through hole 25. The internally threaded cylinder 26 slidably passes through the corresponding pin 22. The two internally threaded cylinders 26 are internally threaded with the same second double-acting screw 28. The second double-acting screw 28 rotates through the second groove 27 and is provided with a first bevel gear 29. The top of the second connecting plate 23 has a rotating rod 30. The bottom end of the rotating rod 30 extends into the second groove 27 and is provided with a second bevel gear 31. The second bevel gear 31 meshes with the first bevel gear 29.This design facilitates quick splicing and fixing of the square tube 2, allowing for adjustment of the number of splices according to actual needs, and facilitating the threading of longer pipes. The cable clamp 12 also includes a first arc-shaped clamp 15, which is fixedly installed on the top inner wall of the cable clamp 12. A second arc-shaped clamp 16 is slidably installed inside the cable clamp 12. Both the first and second arc-shaped clamps 15 and 16 are in contact with the cable 13. A lead screw 17 is threaded through the bottom of the cable clamp 12, and the top of the lead screw 17 is rotatably installed on the bottom of the second arc-shaped clamp 16. This design facilitates clamping the end of the cable 13, thus facilitating cable pulling. Multiple counterweights 32 are slidably installed inside the base box 1. An installation groove is provided on one side of the mounting plate 3, which is connected to two corresponding sliding grooves 8. The first bidirectional lead screw 10 is rotatably installed in the installation groove. By setting the counterweights 32, it is easy to prevent... When the base box 1 is tilted, a second through hole is formed in the top inner wall of the first groove 5. The output shaft of the first motor 7 rotates through the second through hole, thus facilitating the limiting of the output shaft of the first motor 7. A U-shaped bracket is provided on one side of the base box 1, and the limiting wheel 14 is rotatably installed in the U-shaped bracket, thus facilitating the installation of the limiting wheel 14. A third through hole is formed in the pin 22, and the internal threaded cylinder 26 slides through the third through hole. A retaining plate is provided in the round hole 25, and the second bidirectional lead screw 28 rotates through the two retaining plates. A limiting groove is formed in the top inner wall of the round hole 25, and a limiting block is slidably installed in the limiting groove. The limiting block is fixed on the internal threaded cylinder 26, thus facilitating the support and limiting of the second bidirectional lead screw 28. A threaded through hole is formed in the bottom inner wall of the cable clamp 12, and the lead screw 17 is threaded through the threaded through hole, thus facilitating the lifting and lowering movement of the lead screw 17.

[0039] The working principle of this utility model is as follows: In use, first place the square tube 2 on two mounting plates 3, then turn on the two second motors 11. The second motors 11 drive the first bidirectional lead screw 10 to rotate. The first bidirectional lead screw 10 drives the two sliders 9 to move closer to each other. The two sliders 9 drive the two U-shaped limiting clamps 4 to slide on the top of the mounting plate 3 and move closer to each other until the U-shaped limiting clamps 4 slide onto the square tube 2, and the roller 6 contacts one side of the square tube 2. Then, the cable 13 is wound around the limiting wheel 14, and then the cable 13 is passed through the cable clamp 12. Finally, the lead screw 17 is rotated. The second arc-shaped clamping block 16 is driven to slide and rise within the cable clamping sleeve 12, clamping the cable 13. Then, multiple counterweights 32 are slidably placed into the base box 1. Next, another square tube 2 is joined to this square tube 2, allowing the insertion rod 20 to slide into the corresponding rectangular tube 18. Then, the first connecting plate 21 is placed at the bottom of the square tube 2, and the pin 22 slides through the corresponding two first through holes 19. Then, the second connecting plate 23 is placed at the top of the two square tubes 2, allowing the top of the pin 22 to slide into the corresponding slot 24. Finally, the rotating rod 30 is rotated, driving the second bevel gear 31. Rotation causes the second bevel gear 31 to drive the first bevel gear 29 to rotate, which in turn drives the second bidirectional lead screw 28 to rotate. This causes the two internally threaded cylinders 26 to slide through their corresponding pins 22, which are then fixed. The first connecting plate 21 and the second connecting plate 23 are connected and fixed together, and the two square tubes 2 are also connected and fixed together. This arrangement facilitates the quick splicing and fixing of the square tubes 2, and allows for adjustment of the number of square tubes 2 spliced ​​according to actual needs. It also facilitates the threading of longer pipes. Subsequently, multiple first motors 7 are activated, and the output of the first motors 7... The shaft drives the roller 6 to rotate, and the roller 6 drives the square tube 2 to slide laterally a certain distance on the U-shaped limit clamp 4. Then, the next square tube 2 is spliced ​​according to the above operation method. Then, the first motor 7 is turned on again to move the square tube 2, so that the cable 13 is pulled continuously into the pipe until one end of the cable 13 passes through the pipe. With this setting, it is convenient to splice and combine the cable guide rod, and the length of the guide rod can be adjusted. This facilitates the cable laying operation in long pipes, meets the actual needs of cable conduit wiring, and brings great convenience to the wiring work of power engineering.

[0040] It should be noted that, in this document, 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.

[0041] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A threading device for laying a cable, comprising a base box (1) which is open on both sides, characterised in that: The top of the base box (1) is provided with a plurality of square tubes (2) connected in head-tail sequence, the top of the base box (1) is fixedly provided with two mounting plates (3), the top of the mounting plate (3) is slidably provided with two U-shaped limiting clamping blocks (4), the U-shaped limiting clamping block (4) is slidably sleeved on the corresponding square tube (2), the inner wall of the U-shaped limiting clamping block (4) is provided with a first groove (5), the first groove (5) is rotatably provided with a roller (6), one side of the roller (6) extends out of the first groove (5) and is in contact with the corresponding square tube (2), the top of the U-shaped limiting clamping block (4) is provided with a first motor (7), the output shaft of the first motor (7) extends into the first groove (5) and is fixed on the top of the roller (6), the top of the mounting plate (3) is provided with two sliding grooves (8), the sliding groove (8) is slidably provided with a sliding block (9), the sliding block (9) is fixed on the bottom of the corresponding U-shaped limiting clamping block (4), one side of the mounting plate (3) is provided with a second motor (11), the output shaft of the second motor (11) is provided with a first bidirectional screw rod (10), the first bidirectional screw rod (10) is threaded through the two corresponding sliding blocks (9), the bottom of the square tube (2) away from the base box (1) is fixedly provided with a cable clamping sleeve (12), the cable clamping sleeve (12) is provided with a cable (13) therethrough, one side of the base box (1) is provided with a limiting wheel (14), the cable (13) is wound on the limiting wheel (14), the square tube (2) is provided with two rectangular cylinders (18), one of the rectangular cylinders (18) is fixedly provided with a plug rod (20), the plug rod (20) is slidably installed in the corresponding rectangular cylinder (18).

2. A fish tape for laying cable according to claim 1, wherein: The rectangular cylinder (18) further comprises two first through holes (19) respectively formed in the top and bottom inner walls of the rectangular cylinder (18), the first through holes (19) penetrate the square tubes (2), the bottom and top of the joint end of the two square tubes (2) are respectively provided with a first connecting plate (21) and a second connecting plate (23), the top of the first connecting plate (21) is fixedly provided with two pin rods (22), the pin rods (22) slide through the corresponding two first through holes (19), the bottom of the second connecting plate (23) is provided with two clamping grooves (24), the top end of the pin rod (22) is slide mounted in the corresponding clamping groove (24), the bottom of the second connecting plate (23) is provided with a second groove (27), the two side inner walls of the second groove (27) are both penetrated by a circular hole (25), the circular hole (25) is slide mounted with an internally threaded cylinder (26), the internally threaded cylinder (26) slide penetrates the corresponding pin rod (22), the same second bidirectional screw rod (28) is internally threaded mounted in the two internally threaded cylinders (26), the second bidirectional screw rod (28) rotates and penetrates the second groove (27) and is provided with a first bevel gear (29), the top of the second connecting plate (23) is provided with a rotating rod (30), the bottom end of the rotating rod (30) extends into the second groove (27) and is provided with a second bevel gear (31), the second bevel gear (31) is meshed with the first bevel gear (29).

3. A fish tape for laying cable according to claim 1, wherein: The cable clamping sleeve (12) further comprises a first arc-shaped clamping block (15), the top inner wall of the cable clamping sleeve (12) is fixedly provided with a first arc-shaped clamping block (15), the cable clamping sleeve (12) is slide mounted with a second arc-shaped clamping block (16), the first arc-shaped clamping block (15) and the second arc-shaped clamping block (16) are both in contact with the cable (13), the bottom of the cable clamping sleeve (12) is threadedly penetrated by a lead screw (17), the top end of the lead screw (17) is rotatably mounted at the bottom of the second arc-shaped clamping block (16).

4. A fish tape for laying cable according to claim 1, wherein: A plurality of counterweights (32) are slide mounted in the base box (1), one side of the mounting plate (3) is provided with a mounting groove, the mounting groove is in communication with the corresponding two sliding grooves (8), and the first bidirectional screw rod (10) is rotatably mounted in the mounting groove.

5. A fish tape for laying cable according to claim 1, wherein: A second through hole is formed in the top inner wall of the first groove (5), and the output shaft of the first motor (7) rotates and penetrates the second through hole.

6. A fish tape for laying cable according to claim 1, wherein: One side of the base box (1) is provided with a U-shaped support, and the limiting wheel (14) is rotatably mounted in the U-shaped support.

7. A fish tape for laying cable according to claim 2, wherein: A third through hole is formed in the pin rod (22), the internally threaded cylinder (26) slide penetrates the third through hole, a clamping plate is arranged in the circular hole (25), the second bidirectional screw rod (28) rotates and penetrates the two clamping plates, a limiting groove is formed in the top inner wall of the circular hole (25), a limiting block is slide mounted in the limiting groove, and the limiting block is fixed on the internally threaded cylinder (26).

8. A fish tape for laying cable according to claim 3, wherein: A threaded through hole is formed in the bottom inner wall of the cable clamping sleeve (12), and the lead screw (17) threadedly penetrates the threaded through hole.

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