A wire-laying device for laying shaftless cables

Abstract

A pay-off device for laying shaftless cables belongs to the technical field of cable laying equipment and is used for laying and paying out shaftless cables. The technical scheme is as follows: the base is a rectangular frame structure, a plurality of pay-off units are vertically overlapped and connected, the bottom is connected to one side of the base, the upper end and the lower end of the tapered shaft of each pay-off unit are respectively fixedly connected by bearings, and the other side of the base has a fixed frame for placing a cable trolley, the wheels are mounted on the lower bottom surface of the trolley chassis of the cable trolley, the rotating shaft base is rotatably connected to the upper surface of the trolley chassis, the rotating shaft is fixed on the rotating shaft base, the upper end of the rotating shaft is mounted on the manual operating disk, and the cable trolley is placed in the fixed frame of the base. The present invention has a simple structure, is easy to use, and is easy to operate. It can lay multiple types and models of cables at the same time in the form of a rotating cable drum, avoiding the entanglement and interference of multiple cables, facilitating cable replacement and troubleshooting, and reducing the labor intensity of construction personnel.

Description

Technical Field

[0001] The invention relates to a pay-off device for laying shaftless cables, belonging to the technical field of cable laying equipment. Background Art

[0002] In large and medium-sized steel enterprises, it is necessary to lay a variety of cables, including electrical cables, copper-plastic wires, optical fibers, network cables, etc. Most of these cables are shaftless cables, and the center holes are of different sizes, and the laying requirements are different. For example, copper-plastic wires often need to be laid in five colors (yellow, green, red, blue, and yellow-green) at the same time, while optical fibers need to be laid separately and cannot be subjected to too much tension. The commonly used laying method is core pulling, that is, pulling out and releasing from the center of the cable drum. The cables pulled out in this way are spiral-shaped, and multiple cables are entangled together. It is extremely inconvenient to replace and troubleshoot. Often, if there is a problem with one cable, multiple entangled cables are replaced together, resulting in a waste of resources. At the same time, after this type of cable is straightened, the internal force is applied, the cable is easily damaged, the failure increases, and the quality of the operation is affected. At present, the cables in steel enterprises are laid by rotating cable drums, which require the cooperation of multiple people. The tools used for laying cables are many and complicated, and the cable drums are heavy, which endangers the safety of operators and wastes manpower. At the same time, it is also a heavy task to transport large cable drums to the construction site. Therefore, it is very necessary to design a convenient cable laying device. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a cable-laying device for laying shaftless cables. This cable-laying device can lay multiple types and models of cables at the same time in the form of a rotating cable reel, thereby avoiding entanglement and interference between the cables, facilitating cable replacement and troubleshooting, saving manpower and time, preventing cable confusion, and eliminating safety hazards for on-site workers.

[0004] The technical solution to solve the above technical problems is:

[0005] A wire-releasing device for laying shaftless cables comprises a base, a wire-breaking part, a self-rotating wire-releasing part and a cable trolley. The base is a rectangular frame structure. The wire-breaking part comprises a base and a cutter. The base is fixed on a bottom plate of the base. The cutter is installed on the base. The self-rotating wire-releasing part comprises a plurality of wire-releasing units. The plurality of wire-releasing units are vertically overlapped and connected. The bottom is connected to one side of the base. Each wire-releasing unit comprises a tapered shaft. The upper and lower ends of the tapered shaft are respectively fixedly connected by bearings. A fixed frame for placing the cable trolley is provided on the other side of the base. The cable trolley comprises a trolley chassis, wheels, a rotating shaft base, a rotating shaft and a manual operating panel. The wheels are installed on the lower surface of the trolley chassis. The rotating shaft base is rotatably connected to the upper surface of the trolley chassis. The rotating shaft is fixed on the rotating shaft base. The manual operating panel is installed on the upper end of the rotating shaft. The cable trolley is placed in the fixed frame of the base.

[0006] The above-mentioned pay-out device for laying shaftless cables, the base is composed of a bottom plate, a rear panel, a storage slot, an operating table, a fixed frame, and a carrying handle. The bottom plate and the rear panel are vertically connected, the storage slot and the operating table are respectively fixed on the rear panel and the bottom plate, the fixed frame is located on one side of the base, the two carrying handles are respectively fixed on both ends of the base, and there is a mounting hole for the self-rotating pay-out part on one side of the bottom plate.

[0007] The above-mentioned wire-laying device for laying shaftless cables, the wire breaking part is composed of a base, a cutter bracket, a cutter rotating shaft, a cutter rod, an upper cutter, a lower cutter, and a pedal. The base is a rectangular plate, the base is fixed on the bottom plate of the base, the cutter bracket is two parallel vertical plates, the upper ends of the two vertical plates are respectively provided with rotating holes, the cutter rotating shaft is installed in the rotating holes, the front end of the cutter rod is vertically connected to the middle part of the cutter rotating shaft, the upper cutter is fixedly connected to the bottom of the cutter rod, the lower end of the lower cutter is vertically fixed to the upper surface of the base, the cutting edge of the upper cutter is opposite to the cutting edge of the lower cutter, and the pedal is installed at the rear end of the cutter rod.

[0008] The above-mentioned pay-off device for laying shaftless cables, the multiple pay-off units of the self-rotating pay-off part respectively include a tapered shaft, an upper bearing, a lower bearing, an upper cover plate, a lower cover plate, and a support rod, the tapered shaft is a cone, the upper end and the lower end of the tapered shaft are respectively planes, the upper end plane and the lower end plane of the tapered shaft are respectively vertically connected with an upper bearing connecting column and a lower bearing connecting column, there are square upper cover plates and lower cover plates above and below the tapered shaft, there are bearing holes in the centers of the upper cover plates and the lower cover plates, the upper bearing and the lower bearing are respectively installed in the bearing holes of the upper cover plates and the lower cover plates, the upper bearing connecting columns and the lower bearing connecting columns at both ends of the tapered shaft are respectively connected to the inner holes of the upper bearing and the lower bearing, and the four corners of the upper cover plate and the lower cover plate are respectively connected by support rods.

[0009] The above-mentioned pay-off device for laying shaftless cables, the diameters of the bearing holes of the upper cover plate and the lower cover plate of the pay-off unit match the inner hole diameters of the upper bearing and the lower bearing, the outer peripheral cover plate surfaces of the bearing holes are respectively provided with bearing mounting grooves, the diameters of the bearing mounting grooves respectively match the outer wall circumferences of the upper bearing and the lower bearing, the upper bearing and the lower bearing are respectively embedded in the bearing mounting grooves, the plate surfaces of the upper cover plate and the lower cover plate on the side opposite to the pay-off are provided with notches, the notches extend through the bearing mounting grooves to the bearing holes, and the width of the notches is greater than the diameter of the upper bearing connecting column.

[0010] The above-mentioned pay-out device for laying shaftless cables has support rod mounting holes at the four corners of the upper cover plate and the lower cover plate respectively, the outer diameter of the support rod matches the inner diameter of the support rod mounting hole, the two ends of the support rod are respectively inserted into the support rod mounting holes, the top end of the support rod is provided with a support rod connecting hole, the lower end of the support rod is provided with an insertion rod, the diameter of the insertion rod is smaller than the diameter of the support rod, the diameter of the insertion rod matches the inner diameter of the support rod connecting hole, and the insertion rod at the lower end of the support rod of the upper pay-out unit is inserted into the support rod connecting hole at the top end of the support rod of the lower pay-out unit.

[0011] The above-mentioned laying device for laying shaftless cables has two directional wheels installed at the rear of the lower bottom surface of the trolley chassis of the cable trolley, and two universal wheels installed in front of the lower bottom surface of the trolley chassis. The rotating shaft base is a disc, and the rotating shaft base is placed on the upper surface of the trolley chassis. The outer periphery of the rotating shaft base is provided with an annular turntable outer frame, and there are relative annular grooves between the inner hole of the turntable outer frame and the outer periphery of the rotating shaft base, and rollers are embedded in the annular grooves. The rotating shaft base and the rotating outer frame are rotatably matched with the rollers, and the upper and lower surfaces of the turntable outer frame are higher than the upper and lower surfaces of the rotating shaft base.

[0012] The above-mentioned pay-out device for laying shaftless cables has 3-4 vertical manual operating disk mounting columns on the upper end face of the rotating shaft of the cable trolley, and corresponding fixing holes on the circular disk surface of the manual operating disk. The manual operating disk is installed on the upper end face of the rotating shaft through the manual operating disk mounting columns and the fixing holes, and a plurality of manual operating disk handles are evenly distributed on the circumference of the manual operating disk.

[0013] The beneficial effects of the present invention are:

[0014] The present invention arranges a plurality of vertically overlapping and connected pay-off units on one side of the base, the conical shaft of each pay-off unit can rotate through a bearing, a cable drum can be placed on each conical shaft, the wires are pulled out from the outside of the cable for pay-off, and the cables on the plurality of conical shafts will not be entangled or confused when the cables are paid out; a rotatable rotating shaft base is provided on the cable trolley on the other side of the base, the cable is placed on the rotating shaft base, and rotating the manual operating disk can drive the rotating shaft to rotate, so that the rotating shaft base rotates, thereby controllably paying out the cable, and the present invention is particularly suitable for laying optical fibers, network cables and other cables that need to be laid separately and cannot be subjected to too much tension.

[0015] The present invention has a simple structure, is easy to use and easy to operate, and can lay cables of various types and models at the same time in a rotating cable reel, thus avoiding entanglement and interference of multiple cables, preventing cable confusion, facilitating cable replacement and troubleshooting, saving manpower and time, greatly reducing the labor intensity of construction personnel, and eliminating safety hazards of on-site workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the base;

[0018] Figure 3 It is a structural diagram of the disconnected part;

[0019] Figure 4 It is a structural diagram of the self-rotating pay-off part;

[0020] Figure 5 It is a schematic diagram of the structure of the cable trolley;

[0021] Figure 6 It is a schematic diagram of the connection structure between the rotating shaft base and the turntable outer frame;

[0022] Figure 7 It is a schematic diagram of the locking structure of the trolley.

[0023] The markings in the figure are as follows: base 1, wire breaking part 2, self-rotating wire releasing part 3, cable trolley 4, trolley locking part 5;

[0024] Bottom plate 11, rear panel 12, storage slot 13, operating table 14, fixing frame 15, carrying handle 16, hook 17, self-rotating line-releasing part mounting hole 18, base 19, cutter bracket 20, cutter rotating shaft 21, cutter rod 22, upper cutter 23, lower cutter 24, pedal 25, tapered shaft 26, upper bearing connecting column 27, lower bearing connecting column 28, upper bearing 29, lower bearing 30, upper cover plate 31, lower cover plate 32, bearing hole 33, bearing placement groove 34, notch 35, support rod mounting hole 36, support rod 37, support rod connecting hole 38, insertion rod 39, cover plate rib 40, trolley chassis 41, fixed wheel 42, universal wheel 43, rotating shaft base 44, rotating shaft 45, turntable outer frame 46, annular groove 47, roller 48, manual operating disk mounting column 49, manual operating disk 50, fixing hole 51, manual operating disk handle 52, trolley fixing plate 53, trolley fixing column 54, trolley handle 55, trolley locking plate 56, locking plate handle 57, locking plate rotating shaft 58, locking groove 59. DETAILED DESCRIPTION

[0025] The invention comprises five parts, namely, a base 1, a wire breaking part 2, a self-rotating wire releasing part 3, a cable trolley 4, and a trolley locking part 5.

[0026] Figure 1 , 2 As shown, the base 1 is composed of a bottom plate 11 , a rear panel 12 , a storage slot 13 , an operating table 14 , a fixing frame 15 , a carrying handle 16 , and a hook 17 .

[0027] The bottom plate 11 and the rear panel 12 are vertically connected, and the storage groove 13 and the operating table 14 are fixed on the rear panel 12 and the bottom plate 11 respectively. The storage groove 13 is used to store spare cables, and the groove wall is sturdy and anti-collision. The operating table 14 is used for cable laying personnel to place spare items such as line number pens and transparent tapes. The hook 17 is fixed above the operating table 14, and is used to hang cable tables, comparison tables, etc. for easy observation by cable laying personnel. Two carrying handles 16 are respectively fixed at both ends of the base 1 for carrying the base 1. There is a self-rotating wire-releasing part installation hole 18 on one side of the bottom plate 11, which is used to position and fix the self-rotating wire-releasing part 3. The fixing frame 15 is located on one side of the base 1, and is used to place and fix the cable trolley 4.

[0028] Figure 1 , 3 As shown, the wire breaking part 2 is composed of a base 19, a cutter bracket 20, a cutter rotating shaft 21, a cutter rod 22, an upper cutter 23, a lower cutter 24, and a pedal 25.

[0029] The base 19 is a rectangular plate, which is fixed on the bottom plate 11 of the base 1. The cutter bracket 20 is two parallel vertical plates, and the upper ends of the two vertical plates have rotation holes respectively. The cutter rotation shaft 21 is installed in the rotation hole. The front end of the cutter rod 22 is vertically connected to the middle of the cutter rotation shaft 21. The upper cutter 23 is fixedly connected to the bottom of the cutter rod 22. The lower end of the lower cutter 24 is vertically fixed to the upper surface of the base 19. The cutting edge of the upper cutter 23 is opposite to the cutting edge of the lower cutter 24. The pedal 25 is installed at the rear end of the cutter rod 22. The wire breaking part 2 is used to disconnect the cable. The cutter rod 22 is a foot-operated type, which is more labor-saving when cutting.

[0030] Figure 1 , 4 It is shown that the self-rotating pay-off part 3 is composed of a plurality of pay-off units, which are vertically overlapped and connected, and each pay-off unit pays off a coil of cable, and the cables will not be entangled or messed when the plurality of pay-off units are paying off. The bottom of the connected plurality of pay-off units is connected to one side of the base 1, and each pay-off unit is composed of a tapered shaft 26, an upper bearing 29, a lower bearing 30, an upper cover plate 31, a lower cover plate 32, and a support rod 37.

[0031] Figure 1 , 4 It is shown that the tapered shaft 26 is a cone, and the upper and lower ends of the tapered shaft 26 are respectively planes, and the upper and lower planes of the tapered shaft 26 are respectively vertically connected with the upper bearing connecting column 27 and the lower bearing connecting column 28, and the upper bearing connecting column 27 and the lower bearing connecting column 28 are respectively connected to the inner holes of the upper bearing 29 and the lower bearing 30. The tapered shaft 26 is used to hold up the cable, and the upper and lower diameters of the tapered shaft 26 vary, which can adapt to the different sizes of the middle holes of the shaftless cable. The bottom of the tapered shaft 26 is provided with a loose cable storage groove to store the loose cables and prevent them from slipping.

[0032] Figure 1 , 4 It is shown that there are square upper cover plates 31 and lower cover plates 32 above and below the tapered shaft 26, respectively. The upper cover plates 31 and lower cover plates 32 have bearing holes 33 in their centers, and the diameters of the bearing holes 33 match the inner diameters of the upper bearing 29 and lower bearing 30. There are bearing placement grooves 34 on the outer peripheral cover plate surfaces of the bearing holes 33 of the upper cover plates 31 and lower cover plates 32, respectively. The diameters of the bearing placement grooves 34 match the outer wall circumferences of the upper bearing 29 and lower bearing 30, respectively. The upper bearing 29 and lower bearing 30 are respectively embedded in the bearing placement grooves 34.

[0033] Figure 1 , 4 It is shown that the plate surface of the upper cover plate 31 on the side opposite to the pay-off has a notch 35, and the notch 35 extends to the bearing hole 33 through the bearing placement groove 34, and the width of the notch 35 is greater than the diameter of the upper bearing connecting column 27. The notch 35 of the cover plate and the bearing placement groove 34 allows the upper bearing connecting column 27 to pass through, and after falling, it supports the outer frame of the bearing. With such a structure, after multiple pay-off units of the self-rotating pay-off part 3 are connected, if it is necessary to take out the tapered shaft 26 of one of the pay-off units to replace the wire drum, it is not necessary to disassemble the entire pay-off unit, and the tapered shaft 26 can be directly removed, which is very convenient.

[0034] Figure 1 , 4 It is shown that the four corners of the upper cover plate 31 and the lower cover plate 32 are connected by support rods 37. The four corners of the upper cover plate 31 and the lower cover plate 32 are respectively provided with support rod mounting holes 36, the outer diameter of the support rod 37 matches the inner diameter of the support rod mounting hole 36, and the two ends of the support rod 37 are respectively inserted into the support rod mounting holes 36. The top of the support rod 37 is provided with a support rod connecting hole 38, and the lower end of the support rod 37 is provided with an insertion rod 39, the diameter of the insertion rod 39 is smaller than the diameter of the support rod 37, and the diameter of the insertion rod 39 matches the inner diameter of the support rod connecting hole 38, and the insertion rod 37 at the lower end of the support rod 37 of the upper pay-off unit is inserted into the support rod connecting hole 38 at the top of the support rod 37 of the lower pay-off unit.

[0035] Figure 1 , 5 Display, optical fiber, network cable and other types of cables are characterized by large cable reels, heavy cables for transportation and easy to be damaged, so they need to be transported by a cable trolley 4. During the laying process of such cables, they cannot be pulled hard like ordinary cables, and a manual turntable must be used to cooperate with the laying of the cables.

[0036] The cable trolley 4 is placed in the fixed frame 15 on the other side of the base 1. The cable trolley 4 has a rotatable rotating shaft base 44, and the cable is placed on the rotating shaft base 44. The rotating shaft 45 can be driven to rotate by rotating the manual operating disk 48, so that the rotating shaft base 44 can rotate, thereby controlling the cable to be released, which is particularly suitable for laying optical fiber, network cable and other cables that need to be laid separately and cannot be subjected to too much tension.

[0037] The cable trolley 4 is composed of a trolley chassis 41, fixed wheels 42, universal wheels 43, a rotating shaft base 44, a rotating shaft 45, a turntable outer frame 46, an annular groove 47, a roller 48, a manual operating disk mounting column 49, a manual operating disk 50, a fixing hole 51, a manual operating disk handle 52, a trolley fixing plate 53, a trolley fixing column 54, and a trolley handle 55.

[0038] Figure 1 , 5 As shown, two fixed wheels 42 are installed at the rear of the lower bottom surface of the trolley chassis 41 of the cable trolley 4, and two universal wheels 43 are installed in front of the lower bottom surface of the trolley chassis 41 for the movement of the cable trolley 4.

[0039] Figure 1 , 5 It is shown that the rotating shaft base 44 is a disc, and the rotating shaft base 44 is placed on the upper surface of the trolley chassis 41. The rotating shaft 45 is fixedly connected to the center of the rotating shaft base 44. The upper end surface of the rotating shaft 45 has 3-4 vertical manual operation disk mounting columns 49, and the disc surface of the manual operation disk 50 has corresponding fixing holes 51. The manual operation disk 50 is installed on the upper end surface of the rotating shaft 45 through the manual operation disk mounting columns 49 and the fixing holes 51. The manual operation disk 50 can be freely disassembled and assembled, which is convenient for placing cables. There are multiple manual operation disk handles 52 evenly distributed on the circumference of the manual operation disk 50. When in use, the manual operation disk 50 is rotated through the manual operation disk handle 52, and the manual operation disk 50 drives the rotating shaft 45 and the rotating shaft base 44 to rotate, and the wire drum placed on the rotating shaft base 44 rotates accordingly to release the wire. The speed of rotation can control the force of releasing the wire, which is suitable for laying optical fiber, network cable and other cables that need to be laid separately and cannot be subjected to too much tension.

[0040] Figure 1 , 6 As shown, there is an annular turntable outer frame 46 on the outer periphery of the rotating shaft base 44, and there are relative annular grooves 47 between the inner hole of the turntable outer frame 46 and the outer periphery of the rotating shaft base 44, and rollers 48 are embedded in the annular grooves 47. The rotating shaft base 44 and the rotating outer frame 46 are rotatably matched with the rollers 48. The upper surface and the lower surface of the turntable outer frame 46 are higher than the upper surface and the lower surface of the rotating shaft base 44. The rotating shaft base 44 can rotate on the trolley chassis 41 through the rollers 48, and the wire drum is placed on the rotating shaft base 44.

[0041] Figure 1 , 7 It is shown that a vertical trolley fixing plate 53 is connected to the front of the trolley chassis 41 of the cable trolley 4, and horizontal trolley fixing columns 54 are fixed to the front two sides of the trolley fixing plate 53, and the trolley fixing columns 54 are connected to the trolley locking part 5. Trolley handles 55 are installed on both sides above the trolley fixing plate 53, and the cross bar above the trolley handle 55 is a hollow structure for the cable to pass through.

[0042] Figure 1 , 7 It is shown that the trolley locking part 5 is composed of a trolley locking plate 56, a locking plate handle 57, a locking plate rotating shaft 58, and a locking groove 59, which can fix the cable trolley 4 to prevent it from tipping over. The outer sides of the two trolley locking plates 56 are respectively installed on the two sides of the fixing frame 15 of the cable trolley 4 through the locking plate rotating shaft 58, and the two trolley locking plates 56 can rotate around the locking plate rotating shaft 58 respectively. The inner sides of the two trolley locking plates 56 are respectively provided with locking grooves 59, and the locking grooves 59 are N-shaped with an opening downward, and the width of the locking grooves 59 matches the diameter of the trolley fixing column 54 in front of the trolley fixing plate 53. The two trolley locking plates 56 are respectively provided with locking plate handles 57, and the trolley locking plates 56 can be rotated by the locking plate handles 57, so that the trolley locking plates 56 and the trolley fixing column 54 of the cable trolley 4 are buckled and opened to fix and disengage the cable trolley 4.

[0043] The method of use of the present invention is as follows:

[0044] When paying out the wires of multiple cable drums, first assemble multiple pay-out units, set a cable drum on the tapered shaft 26 of each pay-out unit, connect the support rod 37 of each pay-out unit to the support rod mounting holes 36 of the upper cover plate 31 and the lower cover plate 32, respectively, and then insert the insertion rod 39 at the lower end of the support rod 37 of the upper pay-out unit into the support rod connecting hole 38 at the upper end of the support rod 37 of the lower pay-out unit, and assemble the multiple pay-out units into one. Then pull out the wire from the outer side of the cable drum of the tapered shaft 26 of each pay-out unit to pay out the wire.

[0045] When laying out the cable reels such as optical fiber and network cable, the cable reel is first placed on the rotating shaft base 44 of the cable trolley 4, and then the cable trolley 4 is pushed into the fixed frame 15 of the base 1, and the trolley locking plate 56 is rotated using the locking plate handle 57, so that the trolley locking plate 56 is fastened with the trolley fixing column 54 of the cable trolley 4 to fix the cable trolley 4. The manual operation disk 50 is rotated to drive the rotating shaft 45 to rotate, so that the rotating shaft base 44 rotates, and the cable reel placed on the rotating shaft base 44 rotates accordingly to lay out the cable, and the laying force can be controlled by the rotation speed.

[0046] An embodiment of the present invention is as follows:

[0047] The bottom plate 11 of the base 1 has a length of 1640 mm, a width of 640 mm, and a thickness of 10 mm;

[0048] The fixing frame 15 of the base 1 has a length of 640 mm, a width of 640 mm, and a height of 40 mm;

[0049] The base 19 of the disconnecting part 2 has a length of 280 mm, a width of 120 mm, and a thickness of 10 mm;

[0050] The width of the cutter support 20 of the wire breaking portion 2 is 72 mm and the height is 114 mm;

[0051] The length of the cutting rod 22 of the wire breaking part 2 is 440 mm, the width is 30 mm, and the height is 20 mm;

[0052] The upper cutter 23 of the wire breaking portion 2 has a length of 100 mm and a width of 60 mm;

[0053] The conical shaft 26 of the pay-off unit has a bottom diameter of 220 mm, a top diameter of 60 mm, and a height of 290 mm;

[0054] The upper bearing 29 and the lower bearing 30 of the pay-off unit have an outer diameter of 80 mm and an inner diameter of 20;

[0055] The length of the upper cover plate 31 and the lower cover plate 32 of the pay-off unit is 340 mm, the width is 280 mm, and the thickness is 20 mm;

[0056] The support rod 37 of the pay-off unit has a diameter of 20 mm and a length of 410 mm;

[0057] The trolley chassis 41 of the cable trolley 4 has a length of 560 mm, a width of 540 mm, and a thickness of 10 mm;

[0058] The diameter of the rotating shaft base 44 of the cable trolley 4 is 440 mm and the thickness is 36 mm;

[0059] The diameter of the rotating shaft 45 of the cable trolley 4 is 200 mm and the height is 720 mm;

[0060] The turntable outer frame 46 of the cable trolley 4 has a diameter of 520 mm and a thickness of 40 mm;

[0061] The manual operating disk 50 of the cable trolley 4 has a diameter of 440 mm and a thickness of 10 mm;

[0062] The trolley locking plate 56 has a length of 120 mm, a width of 40 mm and a thickness of 20 mm.

Claims

1. A pay-off device for laying shaftless cables, characterized in that: It comprises a base (1), a wire cutting part (2), a self-rotating wire-releasing part (3), and a cable trolley (4). The base (1) is a rectangular frame structure. The wire cutting part (2) comprises a base (19) and a cutter. The base (19) is fixed on a bottom plate (11) of the base (1). The cutter is installed on the base (19). The self-rotating wire-releasing part (3) comprises a plurality of wire-releasing units. The plurality of wire-releasing units are vertically overlapped and connected. The bottom is connected to one side of the base (1). Each wire-releasing unit comprises a tapered shaft (26). The upper end and the lower end of the tapered shaft (26) are respectively fixedly connected via bearings. The other side of the base (1) is provided with a fixed frame (15) for placing a cable trolley (4). The cable trolley (4) comprises a trolley chassis (41), wheels, a rotating shaft base (44), a rotating shaft (45), and a manual operating panel (50). The wheels are mounted on the lower surface of the trolley chassis (41). The rotating shaft base (44) is rotatably connected to the upper surface of the trolley chassis (41). The rotating shaft (45) is fixed on the rotating shaft base (44). The manual operating panel (50) is mounted on the upper end of the rotating shaft (45). The cable trolley (4) is placed in the fixed frame (15) of the base (1). The plurality of pay-off units of the self-rotating pay-off portion (3) respectively comprise a tapered shaft (26), an upper bearing (29), a lower bearing (30), an upper cover plate (31), a lower cover plate (32), and a support rod (37); the tapered shaft (26) is a cone; the upper end and the lower end of the tapered shaft (26) are respectively planes; the upper end plane and the lower end plane of the tapered shaft (26) are respectively vertically connected to an upper bearing connecting column (27) and a lower bearing connecting column (28); and the upper and lower ends of the tapered shaft (26) are respectively provided with square upper cover plates (31). 1) and a lower cover plate (32), the upper cover plate (31) and the lower cover plate (32) are respectively provided with bearing holes (33) in the center, the upper bearing (29) and the lower bearing (30) are respectively installed in the bearing holes (33) of the upper cover plate (31) and the lower cover plate (32), the upper bearing connecting column (27) and the lower bearing connecting column (28) at both ends of the tapered shaft (26) are respectively connected to the inner holes of the upper bearing (29) and the lower bearing (30), and the four corners of the upper cover plate (31) and the lower cover plate (32) are respectively connected by support rods (37); The diameters of the bearing holes (33) of the upper cover plate (31) and the lower cover plate (32) of the pay-off unit match the inner diameters of the upper bearing (29) and the lower bearing (30); the outer peripheral cover plate surfaces of the bearing holes (33) are provided with bearing placement grooves (34); the diameters of the bearing placement grooves (34) match the outer wall circumferences of the upper bearing (29) and the lower bearing (30); the upper bearing (29) and the lower bearing (30) are respectively embedded in the bearing placement grooves (34); the plate surfaces of the upper cover plate (31) and the lower cover plate (32) on the side opposite to the pay-off are provided with notches (35); the notches (35) extend through the bearing placement grooves (34) to the bearing holes (33); the width of the notches (35) is greater than the diameter of the upper bearing connecting column (27); The upper cover plate (31) and the lower cover plate (32) are respectively provided with support rod mounting holes (36) at four corners, the outer diameter of the support rod (37) matches the inner diameter of the support rod mounting hole (36), the two ends of the support rod (37) are respectively inserted into the support rod mounting holes (36), the top end of the support rod (37) is provided with a support rod connecting hole (38), the lower end of the support rod (37) is provided with an insertion rod (39), the diameter of the insertion rod (39) is smaller than the diameter of the support rod (37), the diameter of the insertion rod (39) matches the inner diameter of the support rod connecting hole (38), and the insertion rod (39) at the lower end of the support rod (37) of the upper pay-off unit is inserted into the support rod connecting hole (38) at the top end of the support rod (37) of the lower pay-off unit; The bottom of the tapered shaft (26) is provided with a loose cable storage groove for storing the loose cable to prevent the cable from slipping.

2. The pay-off device for laying shaftless cables according to claim 1, characterized in that: The base (1) is composed of a bottom plate (11), a rear panel (12), a storage groove (13), an operating table (14), a fixing frame (15), and a carrying handle (16); the bottom plate (11) and the rear panel (12) are vertically connected; the storage groove (13) and the operating table (14) are respectively fixed on the rear panel (12) and the bottom plate (11); the fixing frame (15) is located on one side of the base (1); two carrying handles (16) are respectively fixed on two ends of the base (1); and a self-rotating pay-off part mounting hole (18) is provided on one side of the bottom plate (11).

3. The pay-off device for laying shaftless cables according to claim 1, characterized in that: The wire breaking part (2) is composed of a base (19), a cutter support (20), a cutter rotating shaft (21), a cutter rod (22), an upper cutter (23), a lower cutter (24), and a pedal (25). The base (19) is a rectangular plate, and the base (19) is fixed on the bottom plate (11) of the base (1). The cutter support (20) is two parallel vertical plates, and the upper ends of the two vertical plates are respectively provided with rotating holes, and the cutter rotating shaft (21) is installed in the rotating holes. The front end of the cutter rod (22) is vertically connected to the middle part of the cutter rotating shaft (21), the upper cutter (23) is fixedly connected to the bottom of the cutter rod (22), and the lower end of the lower cutter (24) is vertically fixed to the upper surface of the base (19). The cutting edge of the upper cutter (23) is opposite to the cutting edge of the lower cutter (24), and the pedal (25) is installed at the rear end of the cutter rod (22).

4. The pay-off device for laying shaftless cables according to claim 1, characterized in that: Two directional wheels (42) are installed at the rear of the lower bottom surface of the trolley chassis (41) of the cable trolley (4), and two universal wheels (43) are installed at the front of the lower bottom surface of the trolley chassis (41). The rotating shaft base (44) is a disc, and the rotating shaft base (44) is placed on the upper surface of the trolley chassis (41). The outer periphery of the rotating shaft base (44) is provided with an annular turntable outer frame (46). An annular groove (47) is provided between the inner hole of the turntable outer frame (46) and the outer periphery of the rotating shaft base (44). A roller (48) is embedded in the annular groove (47). The rotating shaft base (44) and the rotating outer frame (46) are rotatably matched with the roller (48), and the upper surface and lower surface of the turntable outer frame (46) are higher than the upper surface and lower surface of the rotating shaft base (44).

5. The pay-off device for laying shaftless cables according to claim 4, characterized in that: The upper end surface of the rotating shaft (45) of the cable trolley (4) is provided with 3-4 vertical manual operating disk mounting columns (49), and the circular disk surface of the manual operating disk (50) is provided with corresponding fixing holes (51). The manual operating disk (50) is mounted on the upper end surface of the rotating shaft (45) via the manual operating disk mounting columns (49) and the fixing holes (51), and a plurality of manual operating disk handles (52) are evenly distributed around the circumference of the manual operating disk (50).

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