A mobile cable pay-off device and method of use

Abstract

A mobile cable pay-off device, the lower part of the framework is provided with wheels for movement; the middle of the lower crossbeam of the second frame is provided with an oil cylinder, the end of the oil cylinder piston rod is provided with a lifting piece rotatingly installed, the upper end of the lifting piece is provided with a guide rod, the guide rod is slidingly matched with the upper crossbeam of the second frame for support; the lifting piece is provided with multiple fixing parts for fixing and positioning different specifications of cable reels; and the hydraulic system for driving the oil cylinder to work is further included. The C-shaped framework can facilitate the cable reels to roll into the framework; the lifting piece moves up and down through the extension and retraction of the oil cylinder, and the cable reels are lifted to be suspended from the ground when moving upward, which facilitates the cable pay-off on the cable reels, and the operation process does not need additional mechanical equipment assistance, and the use is convenient. The lifting piece is provided with multiple fixing parts for fixing and positioning different specifications of cable reels, and thus can be suitable for different diameter specifications of cable reels, and the use is convenient.

Description

Technical Field

[0001] This invention relates to the field of power construction equipment technology, and in particular to a mobile cable laying device and its usage method. Background Technology

[0002] In the construction of power cable laying, cable rolls are usually laid out using a cable laying bracket to support them. However, this method has the drawback that the cable rolls need to be mechanically hoisted onto the bracket, which is fixed to the ground and cannot be moved. To solve this problem, the cable rolls and brackets are often placed on a vehicle during work, which not only occupies the vehicle but also sometimes makes it impossible to reach narrow working environments, making it inconvenient to use.

[0003] Although CN214652759U discloses a mobile cable reel device, its cable reel requires additional auxiliary equipment for both top and bottom operation. Similarly, CN108002144A discloses a mobile hand-cranked cable reel, which also requires additional auxiliary equipment for both top and bottom operation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to solve the problems existing in the above-mentioned background technology and provide a mobile cable laying device and its usage method that can support cable rolls of different diameters without the aid of other machinery and can be moved easily.

[0005] To achieve the aforementioned technical features, the present invention aims to provide a mobile cable laying device, comprising a frame, the frame including a first frame and second frames located on both sides of the first frame, forming a frame structure capable of receiving and accommodating cable rolls; wheels for movement are provided at the lower part of the frame; a hydraulic cylinder is installed in the middle of the lower crossbeam of the second frame, the piston rod of the hydraulic cylinder extends upward, a lifting member is rotatably mounted at the end of the piston rod, a guide rod is installed at the upper end of the lifting member, and the guide rod slides and supports the upper crossbeam of the second frame; the lifting member is provided with multiple fixing parts for fixing and positioning cable rolls of different specifications; and a hydraulic system for driving the hydraulic cylinder is also included.

[0006] The wheels include a directional wheel mounted on the front side below the frame and a swivel wheel mounted on the rear side; a foot-operated brake is also provided below the frame.

[0007] The fixing part includes a plurality of groove-shaped support parts disposed on one side of the lifting member and a rod-shaped support part disposed on the other side. The plurality of groove-shaped support parts are arranged longitudinally at intervals, and the groove-shaped support parts and the rod-shaped support parts extend laterally outward.

[0008] The lifting component includes a receiving cavity located on the lower side, an installation cavity above the receiving cavity, and a bolt hole for connecting to the end of the piston rod of the hydraulic cylinder between the receiving cavity and the installation cavity.

[0009] The lifting component has a piston rod positioning hole corresponding to the bolt hole on the side of the receiving cavity facing the upper mounting cavity, and a guide rod fixing hole is provided on the upper end face of the lifting component.

[0010] The upper crossbeam of the second frame is equipped with a guide block, and the guide rod slides up and down through the guide hole of the guide block.

[0011] The lower crossbeam extends downward in the middle to form a recess, and the oil cylinder is installed in the recess.

[0012] The hydraulic system includes a manually operated one-way fixed displacement pump, which is connected to two flow control valves via pipelines. The two flow control valves are connected to the cavity on the piston rod-less side of the cylinder, and a pressure relief valve is installed on the main oil line connecting the one-way fixed displacement pump and the two flow control valves.

[0013] A method of using a mobile cable laying device includes the following steps: S1. Determine the width between the two discs on both sides of the cable roll to be laid out; if the width is much smaller than the distance between the two lifting parts, use the central shaft and the grooved support to support the cable roll; if the width is smaller than and close to the distance between the two lifting parts, the rod-shaped support can be used to support the cable roll; confirm that the hydraulic cylinder is retracted so that the lifting parts are at the lowest point; When using a central axis: Insert the central shaft, which is used to support the cable roll, into the central hole of the cable roll to be laid out; Roll the cable inserted into the central shaft into the frame, and place both ends of the central shaft into the grooved support parts at the corresponding heights on both sides of the lifting component. When a rod-shaped support is used: The cable to be laid is pushed into the frame, and the lifting component is rotated. At the same time as the cable is pushed into the frame, the rod-shaped support extends into the center hole of the cable. S2. Check and close the pressure relief valve, use the lever to drive the one-way metering oil pump, the oil cylinder works, the piston rod rises, and the lifting component is pushed up, thereby lifting the cable roll; S3. After the cable roll rises to the air, move the cable laying device and cable roll to the working position, fix the position with the foot brake, and then lay the cable. S4. After the work is completed, release the foot brake, move the cable delivery device to the storage position, open the pressure relief valve after arrival, and remove the cable roll.

[0014] The present invention has the following beneficial effects: 1. The skeleton includes a first frame and a second frame located on both sides of the first frame. The C-shaped skeleton can facilitate the cable to be rolled into the skeleton.

[0015] 2. The second frame on both sides is equipped with a hydraulic cylinder. A lifting component is rotatably mounted on the piston rod of the hydraulic cylinder. A guide rod is provided at the upper end of the lifting component. The lifting component moves up and down by the extension and retraction of the hydraulic cylinder. When it moves upward, it lifts the cable roller off the ground and into the air, which makes it easy to release the cable on the cable roller. No other mechanical equipment is required for operation, and it is easy to use.

[0016] 3. The lifting component is equipped with multiple fixing parts for fixing and positioning cable rolls of different specifications, so it can be used for cable rolls of different diameters and is easy to use.

[0017] 4. The fixing part includes multiple groove-shaped support parts on one side of the lifting member and rod-shaped support parts on the other side. The longitudinally spaced groove-shaped support parts can accommodate cable rolls of different diameters. On the other side of the lifting member, there is a rod-shaped support part. When the rod-shaped support parts of the two lifting members are opposite each other, they can also support the cable rolls that can be safely placed on the rod-shaped support parts without the need for a central shaft.

[0018] 5. The lower part of the frame is equipped with wheels for easy movement. The hydraulic system provides power to the cylinders, ensuring good stability.

[0019] 6. The lifting component includes a receiving cavity located on the lower side. When the hydraulic cylinder retracts, the upper end of the hydraulic cylinder can enter the receiving cavity. Its function is to allow the lifting component to be closer to the ground while satisfying the requirement that multiple groove-shaped support parts are provided longitudinally on the lifting component, so as to meet the requirements of small-diameter cable rolling.

[0020] 7. A guide block is provided, which is located above one side of the upper crossbeam. The piston rod of the hydraulic cylinder extends out and lifts the lifting component upward, so that the upper end of the lifting component can be locked under the guide block. This creates a limit between the side of the lifting component where the rod-shaped support or the groove-shaped support is installed and the side of the upper crossbeam, thereby restricting the rotation of the lifting component during operation.

[0021] 8. The lower crossbeam extends downwards from the middle to form a recess, within which the hydraulic cylinder is installed. This further lowers the cylinder's mounting position, increases the vertical movement distance of the lifting components, accommodates cable rolls of more diameters, and enhances the device's versatility. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the present invention from another perspective.

[0024] Figure 3 This is a three-dimensional structural diagram of the cable roller supported by the central shaft and the grooved support part of the present invention.

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the cable roll supported by the rod-shaped support part of the present invention.

[0026] Figure 5 This is a schematic diagram of the connection structure between the hydraulic cylinder, the lifting component, and the guide rod of the present invention.

[0027] Figure 6 This is a schematic diagram of the lifting component structure of the present invention.

[0028] Figure 7 This is a cross-sectional view of the lifting component of the present invention.

[0029] Figure 8 This is a schematic diagram of the hydraulic system of the present invention.

[0030] In the diagram: skeleton 10, first frame 11, second frame 12, lower crossbeam 121, upper crossbeam 122, guide block 123. Recess 124, directional wheel 13, swivel wheel 14, foot brake 15, hydraulic cylinder 20; Lifting component 30, receiving cavity 31, bolt hole 311, piston rod positioning hole 312, groove-shaped support part 32, rod-shaped support part 33, guide rod 34, mounting cavity 35, guide rod fixing hole 36; Hydraulic system 40, one-way fixed displacement oil pump 41, flow regulating valve 43, pressure relief valve 42; Center shaft 50, cable roll 60. Detailed Implementation

[0031] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0032] Example 1: See Figure 1-8A mobile cable laying device includes a frame 10, which includes a first frame 11 and second frames 12 located on both sides of the first frame 11, forming a frame structure for rolling and accommodating cable rolls 60. The lower part of the frame 10 is provided with wheels for movement. A hydraulic cylinder 20 is installed in the middle of the lower crossbeam 121 of the second frame 12. The piston rod of the hydraulic cylinder 20 extends upward, and a lifting member 30 is rotatably installed at the end of the piston rod. A guide rod 34 is installed at the upper end of the lifting member 30, and the guide rod 34 slides and supports the upper crossbeam 122 of the second frame 12. The lifting member 30 is provided with multiple fixing parts for fixing and positioning cable rolls 60 of different specifications. The device also includes a hydraulic system 40 for driving the hydraulic cylinder 20. With the above structure, the C-shaped frame 10 facilitates the insertion of cable rolls into the frame. Hydraulic cylinders 20 are installed on the second frames 12 on both sides. Lifting members 30 are rotatably mounted on the piston rods of the cylinders 20. A guide rod 34 is provided at the upper end of the lifting member 30. The lifting member 30 moves up and down through the extension and retraction of the hydraulic cylinders 20. When moving upwards, it lifts the cable roll off the ground and suspends it in the air, facilitating the unloading of cables from the cable roll 60. No additional mechanical equipment is required during operation, making it convenient to use. Because the lifting member 30 has multiple fixing parts for fixing and positioning cable rolls 60 of different specifications, it is suitable for cable rolls of different diameters, making it easy to use. The frame 10 has wheels at the bottom for easy movement. The hydraulic system 40 provides power to the cylinders. The hydraulic system 40 can be a mechanical structure or an electrically controlled structure. When an electric structure is used, a battery is required to power the hydraulic system.

[0033] For details, see Figure 1 , 2 The wheels include a fixed wheel 13 mounted on the front side and a swivel wheel 14 mounted on the rear side below the frame 10; a foot-operated brake 15 is also provided below the frame 10. The cooperation of the fixed wheel 13 and the swivel wheel 14 allows the frame to move flexibly, while the foot-operated brake 15 can be positioned when needed to prevent the device from moving. The foot-operated brake 15 is a caster brake that is compatible with the fixed wheel 13 and the swivel wheel 14.

[0034] For details, see Figure 5-7The fixing part includes multiple channel-shaped support parts 32 disposed on one side of the lifting member 30 and rod-shaped support parts 33 disposed on the other side. The multiple channel-shaped support parts 32 are arranged longitudinally at intervals, and the channel-shaped support parts 32 and rod-shaped support parts 33 extend laterally outward. The longitudinally spaced channel-shaped support parts 32 can accommodate cable rolls of different diameters. When the cable roll is smaller, the lower channel-shaped support part 32 is used; when the cable roll is larger, the corresponding upper channel-shaped support part 32 is used. The channel-shaped support parts 32 are made of angle steel. On the back side of the lifting member 30 where the channel-shaped support parts 32 are disposed, there is a rod-shaped support part 33. When the rod-shaped support parts 33 of the two lifting members 30 are opposite each other, the cable rolls that can be safely placed on the rod-shaped support parts 33 can also be supported. To facilitate easier cable unloading from the cable roller 60 suspended on the rod-shaped support 33, the rod-shaped support 33 can rotate. For example, the rod-shaped support 33 and the lifting member 30 can be coupled with bearings, or the rod-shaped support 33 can have a double-layer structure, with the inner layer being a fixed rod that is fixedly connected to the lifting member 30, and the outer layer being a rotating sleeve that is rotatably sleeved on the outer circumference of the fixed rod.

[0035] Furthermore, the lifting member 30 includes a receiving cavity 31 located on the lower side. When the hydraulic cylinder 20 retracts, the upper end of the hydraulic cylinder 20 can enter the receiving cavity 31. Its function is to allow the lifting member 30 to be closer to the ground, while also satisfying the requirement of having multiple longitudinally arranged groove-shaped support parts 32 on the lifting member 30, thus accommodating small-diameter cable rolls 60. Above the receiving cavity 31, there is a mounting cavity 35. Between the receiving cavity 31 and the mounting cavity 35, there is a bolt hole 311 for connecting to the end of the piston rod of the hydraulic cylinder 20. The bolt is connected to the end of the piston rod of the hydraulic cylinder 20 through the bolt hole 311 in the mounting cavity 35. The connection function is to position the piston rod and the lifting member 30, but it is not completely locked and fixed.

[0036] Furthermore, the lifting member 30 has a piston rod positioning hole 312 corresponding to the bolt hole 311 on the side of the receiving cavity 31 facing the upward mounting cavity 35, and a guide rod fixing hole 36 is provided on the upper end face of the lifting member 30. The piston rod of the hydraulic cylinder 20 can be rotatably inserted into the piston rod positioning hole 312, resulting in better structural stability. The guide rod fixing hole 36 is provided on the upper end face of the lifting member 30, and the guide rod 34 is inserted into the guide rod fixing hole 36 with an interference fit, making the connection convenient.

[0037] In the preferred embodiment, see Figure 1The upper crossbeam 122 of the second frame 12 is provided with a guide block 123. The guide rod 34 slides up and down through the guide hole of the guide block 123, making the structure more stable. In this embodiment, the guide block 123 is located above one side of the upper crossbeam 122. The piston rod of the hydraulic cylinder 20 extends and lifts the lifting member 30 upward, so that the upper end of the lifting member 30 can be inserted into the lower part of the guide block 123. This forms a limit between the side of the lifting member 30 where the rod-shaped support part 33 or the groove-shaped support part 32 is installed and the side of the upper crossbeam 122, thereby restricting the rotation of the lifting member 30 during operation.

[0038] When the guide block 123 is not set, the guide rod 34 cooperates with the upper crossbeam 122 for guidance. Its structure is such that the upper crossbeam 122 and the lower crossbeam 121 have the same width. Therefore, a hole can be set on the upper crossbeam 122, and the guide rod 34 passes through the hole on the upper crossbeam 122 for guidance. When the oil cylinder 20 is raised, the upper end of the lifting member 30 abuts against the lower end face of the upper crossbeam 122, thereby restricting the rotation of the lifting member 30.

[0039] In the preferred embodiment, see Figure 1-4 The lower crossbeam 121 extends downward in the middle to form a recess 124, and the hydraulic cylinder 20 is installed in the recess 124. Further lowering the installation position of the hydraulic cylinder increases the vertical movement distance of the lifting component 30, accommodating cable rolls 60 of more diameters and increasing the versatility of the device.

[0040] For details, see Figure 8 The hydraulic system 40 includes a manually operated one-way fixed-displacement oil pump 41. The one-way fixed-displacement oil pump 41 is connected to two flow control valves 43 via pipelines. The two flow control valves 43 are connected to the cavity on the piston-less side of the cylinder 20. A pressure relief valve 42 is installed on the main oil line connecting the one-way fixed-displacement oil pump 41 and the two flow control valves 43. The system has a simple structure and uses a manually operated one-way fixed-displacement oil pump 41, making operation more convenient and stable. A lever is used to press up and down, thereby driving the cylinder to extend. After the cable roller 60 is raised, it will not fall back without opening the pressure relief valve 42, ensuring high safety. The two flow control valves 43 are adjusted separately to allow the two cylinders 20 to rise synchronously. When it is necessary to lower the cable roller 60, the pressure relief valve 42 is opened.

[0041] Example 2: A method of using a mobile cable laying device includes the following steps: S1. Determine the width between the two discs on both sides of the cable roll 60 to be laid out; if the width is much smaller than the distance between the two lifting parts 30, then use the central shaft 50 and the grooved support part 32 to support the cable roll 60; if the width is smaller than and close to the distance between the two lifting parts 30, then the rod-shaped support part 33 can be used to support the cable roll 60; confirm that the hydraulic cylinder 20 is retracted so that the lifting part 30 is at the lowest point; When using a center axis of 50: Insert the central shaft 50, which supports the cable roll 60, into the central hole of the cable roll 60 to be laid out; Push the cable roller 60 inserted into the central shaft 50 into the frame 10, and place both ends of the central shaft 50 into the grooved support 32 at the corresponding height on both sides of the lifting member 30. When using rod-shaped support 33: The cable roll 60 to be laid is pushed into the frame 10, and the lifting member 30 is rotated. At the same time as the cable roll 60 is pushed into the frame 10, the rod-shaped support part 33 extends into the center hole of the cable roll 60. S2. Check and close the pressure relief valve 42, drive the one-way metering oil pump 41 with the lever, the oil cylinder 20 works, the piston rod rises, and the upper lifting part 30 is lifted, thereby raising the cable roller 60; S3. After the cable reel 60 is raised to the air, move the cable laying device and the cable reel 60 to the working position, fix the position with the foot brake 15, and then lay the cable. S4. After the work is completed, release the foot brake 15, move the cable laying device to the storage position, and after arriving at the storage position, open the pressure relief valve 42 and remove the cable roller 60.

[0042] The working process and principle of this invention: When the width between the two discs of the cable roller 60 is much smaller than the distance between the two lifting parts 30, the cable roller 60 is supported by the central shaft 50 and the grooved support part 32.

[0043] Insert the central shaft 50, which supports the cable roll 60, into the central hole of the cable roll 60 to be laid out; Push the cable roller 60 inserted into the central shaft 50 into the frame 10, and place both ends of the central shaft 50 into the grooved support 32 at the corresponding height on both sides of the lifting member 30. Check and close the pressure relief valve 42, use the lever to swing up and down to drive the one-way quantitative oil pump 41, the oil cylinder 20 works, the piston rod rises, and the lifting part 30 is lifted up, thereby raising the cable roller 60. After the cable reel 60 is raised to the air, the cable laying device and the cable reel 60 are moved to the working position, and the position is fixed with the foot brake 15 before the cable is laid. After the work is completed, release the foot brake 15, move the cable laying device to the storage position, open the pressure relief valve 42 upon arrival, and remove the cable roller 60.

[0044] When the width between the two discs on both sides of the cable roll 60 is less than and close to the distance between the two lifting parts 30, the cable can be supported by the rod-shaped support part 33; of course, the central shaft 50 can also be used for support.

[0045] When using rod-shaped support 33: Push the cable roll 60 to be laid into the frame 10, and rotate the lifting member 30 so that the rod-shaped support part 33 extends into the center hole of the cable roll 60. Check and close the pressure relief valve 42, drive the one-way metering oil pump 41 with the lever, the oil cylinder 20 works, the piston rod rises, and the lifting part 30 is lifted, thereby raising the cable roller 60; After the cable reel 60 is raised to the air, the cable laying device and the cable reel 60 are moved to the working position, and the position is fixed with the foot brake 15 before the cable is laid. After the work is completed, release the foot brake 15, move the cable laying device to the storage position, open the pressure relief valve 42 upon arrival, and remove the cable roller 60.

Claims

1. A method of using a mobile cable laying device, characterized in that, A mobile cable laying device is employed, comprising a frame, which includes a first frame and second frames located on both sides of the first frame, forming a frame structure capable of receiving and loading cable rolls. Wheels are provided at the lower part of the frame. A hydraulic cylinder is installed in the middle of the lower crossbeam of the second frame, with the piston rod of the cylinder extending upwards. A lifting member is rotatably mounted at the end of the piston rod, and a guide rod is installed at the upper end of the lifting member, slidingly engaging with the upper crossbeam of the second frame for support. The lifting member is provided with a fixing part for fixing and positioning cable rolls of different specifications. A hydraulic system for driving the hydraulic cylinder is also included. A foot-operated brake is provided below the frame. The fixing part includes a plurality of grooved support parts disposed on one side of the lifting member and a rod-shaped support part disposed on the other side. The plurality of grooved support parts are arranged longitudinally at intervals, and the grooved support parts and the rod-shaped support parts extend laterally outward. The hydraulic system includes a manual one-way fixed displacement pump, which is connected to two flow control valves via pipelines. The two flow control valves are connected to the cavity on the piston rod-less side of the cylinder. A pressure relief valve is installed on the main oil line connecting the one-way fixed displacement pump and the two flow control valves. The usage method includes the following steps: S1. Determine the width between the two discs on both sides of the cable roll to be laid out; if the width is much smaller than the distance between the two lifting parts, use the central shaft and the grooved support to support the cable roll; if the width is smaller than and close to the distance between the two lifting parts, use the rod-shaped support to support the cable roll; confirm that the hydraulic cylinder is retracted so that the lifting parts are at the lowest point; When using a central axis: Insert the central shaft, which is used to support the cable roll, into the central hole of the cable roll to be laid out; Roll the cable inserted into the central shaft into the frame, and place both ends of the central shaft into the grooved support parts at the corresponding heights on both sides of the lifting component. When a rod-shaped support is used: The cable to be laid is pushed into the frame, and the lifting component is rotated. At the same time as the cable is pushed into the frame, the rod-shaped support extends into the center hole of the cable. S2. Check and close the pressure relief valve, use the lever to drive the one-way metering oil pump, the oil cylinder works, the piston rod rises, and the lifting component is pushed up, thereby lifting the cable roll; S3. After the cable roll rises to the air, move the mobile cable laying device and the cable roll to the working position, fix the position with the foot brake, and then lay the cable. S4. After the work is completed, release the foot brake, move the mobile cable laying device to the storage position, open the pressure relief valve after arrival, and remove the cable roll.

2. The method of using the mobile cable laying device according to claim 1, characterized in that: The wheels include a directional wheel mounted on the front side below the frame and a swivel wheel mounted on the rear side.

3. The method of using the mobile cable laying device according to claim 1, characterized in that: The lifting component includes a receiving cavity located on the lower side, an installation cavity above the receiving cavity, and a bolt hole for connecting to the end of the piston rod of the hydraulic cylinder between the receiving cavity and the installation cavity.

4. The method of using the mobile cable laying device according to claim 1, characterized in that: The lifting component has a piston rod positioning hole corresponding to the bolt hole on the side of the receiving cavity facing the upper mounting cavity, and a guide rod fixing hole is provided on the upper end face of the lifting component.

5. The method of using the mobile cable laying device according to claim 1, characterized in that: The upper crossbeam of the second frame is equipped with a guide block, and the guide rod slides up and down through the guide hole of the guide block.

6. The method of using the mobile cable laying device according to claim 1, characterized in that: The lower crossbeam extends downward in the middle to form a recess, and the oil cylinder is installed in the recess.

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