Cable positioning device for power distribution network construction

Abstract

The invention discloses a cable positioning device for power distribution network construction, and relates to the technical field of cable trench fixing frames, the cable positioning device comprises a plurality of supporting units used for laying cables, each supporting unit comprises a fixing frame and a plurality of supporting plates, the fixing frames are fixedly connected to the side wall of a cable trench, the supporting plates are vertically and movably arranged on the fixing frames, and the supporting plates are arranged on the fixing frames. Each supporting plate is provided with an upper limit position parallel to the side wall of the cable trench and a lower limit position perpendicular to the side wall of the cable trench in the moving stroke relative to the fixing frame. When each supporting plate passes through the same laying station in the process of moving from the upper limit position to the lower limit position, a worker sequentially enables each supporting plate to be in the laying station for cable laying and then moves to the corresponding lower limit position, so that on one hand, the worker is not influenced by other supporting plates when laying cables on the supporting plate in the laying station; and on the other hand, a worker only needs to operate on the lateral land of the cable trench, so that the work of the worker is facilitated.

Description

Technical Field

[0001] This invention relates to the field of cable trench fixing frame technology, specifically a cable positioning device for power distribution network construction. Background Technology

[0002] A power distribution network refers to a power network that receives electrical energy from a transmission network or a regional power plant and distributes it locally or in stages according to voltage to various users through power distribution facilities. As a concentrated area of ​​power users, a residential community is an important part of the power distribution network. In some small-scale power distribution renovation projects, local power access projects, or power supply connections for specific equipment, cable trenches of about ten meters in length are used.

[0003] Patent CN217824189U discloses a cable arrangement insulation support, which includes a cable support and a fixing frame for fixing on the side wall of a cable trench. The fixing frame is arranged vertically, and a connecting plate is detachably provided on the side wall of the fixing frame. A support plate is provided on the bottom wall of the connecting plate. The cable support is rotatably mounted on the support plate. The cable support is configured as a long strip rod. The cable support is provided with a limiting member for limiting the position of the cable support. Multiple clamping members for clamping cables are provided on the top wall of the cable support.

[0004] Patent CN219351244U discloses a cable angle steel bracket for a substation, which includes: a fixed frame, a support frame, a cable tray, a fireproof partition, an insulator, a cable trench cover, and a cable trench; wherein the cable trench is a rectangular trench, a cable trench cover is provided above the cable trench, the fixed frame is installed in the cable trench, the support frame is welded on the fixed frame, the cable tray is welded on the support frame, the fireproof partition is laid on the cable tray, and the insulator is installed on the top cable tray.

[0005] Existing technologies, such as those described in the aforementioned patents, can achieve multi-layer cable laying through the various trays on the fixed frame. However, during the laying process, multiple workers are required to lay the cables layer by layer from top to bottom or bottom to top. Firstly, whether the cable is laid from top to bottom or bottom to top, the adjacent upper or lower trays (except for the topmost tray) will affect the laying, which will reduce the laying efficiency. Secondly, the already laid cables will affect the workers' standing positions. Summary of the Invention

[0006] The purpose of this invention is to provide a cable positioning device for power distribution network construction to overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cable positioning device for power distribution network construction, comprising multiple support units for laying cables, each support unit comprising a fixed frame and multiple trays, the fixed frame being fixedly connected to the side wall of the cable trench, each tray being vertically movably mounted on the fixed frame, each tray having an upper limit position parallel to the side wall of the cable trench and a lower limit position perpendicular to the side wall of the cable trench during its movement relative to the fixed frame; when each tray moves from the upper limit position to the lower limit position, it passes through the same laying position, and the tray at the laying position is perpendicular to the side wall of the cable trench.

[0008] Furthermore, each of the aforementioned pallets is fixedly connected to a fixing sleeve, and each fixing sleeve is rotatably connected to a slider, with each slider being slidably connected to the fixing frame via a corresponding groove.

[0009] Furthermore, a guide rod is fixedly connected inside the fixing frame. The guide rod has a guide groove, which includes a spiral groove and two vertical grooves. One end of the spiral groove is connected to one of the vertical grooves, and the other end is connected to the other vertical groove. Each fixing sleeve is provided with a ball bearing that rolls with the guide groove.

[0010] Furthermore, a linkage assembly is provided between two adjacent pallets. The linkage assembly includes a first hinge rod, a second hinge rod, and a hinge shaft. One end of the first hinge rod is hinged to one end of the second hinge rod via the hinge shaft. The other ends of the first and second hinge rods are respectively hinged to the two corresponding pallets.

[0011] Furthermore, a support plate is slidably connected to the fixed frame, and a hollow rod is fixedly connected to the support plate. The hollow rod is horizontally slidably connected to the fixed frame, and a taut connecting chain is provided between the hollow rods of two adjacent support units.

[0012] Furthermore, the fixing frame is also provided with a plurality of locking components that lock and fix the tray one by one. The locking components include a wedge block, an elastic element, and a slot on the tray with a connecting rod. The wedge block is horizontally slidably connected in the fixing frame, the connecting rod is fixedly connected to the wedge block, and the elastic element is disposed between the wedge block and the fixing frame.

[0013] Furthermore, the elastic element is a spring, one end of which is connected to the wedge block and the other end is connected to the fixing frame.

[0014] Furthermore, each of the aforementioned fixing brackets is equipped with multiple bolts.

[0015] Furthermore, each of the aforementioned trays is also provided with multiple perforations.

[0016] In the above technical solution, the present invention provides a cable positioning device for power distribution network construction. Before laying the cables, the worker lays multiple cables on the ground on the side of the cable trench. The worker stands on the ground on the side of the cable trench. For each tray in the upper limit position, the worker first moves the tray closest to the bottom of the fixing frame from its upper limit position to the laying position. The worker can then move each cable to the tray in the laying position in sequence. After laying the required number, the worker moves the tray in the laying position to the lower limit position corresponding to this tray. Then, each tray is operated in the same way in sequence.

[0017] Workers sequentially position each pallet at the laying station to lay the cable and then move it to the corresponding lower limit position. On the one hand, when laying cables on the pallet in the laying station, the worker is not affected by other pallets, which can effectively improve the laying efficiency. On the other hand, the worker only needs to operate on the side of the cable trench, which is convenient for the worker. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the structure after some support units are arranged according to an embodiment of the present invention; Figure 2 A schematic diagram of a single support unit structure provided in an embodiment of the present invention; Figure 3 Provided for embodiments of the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 Provided for embodiments of the present invention Figure 2 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the structure of one of the pallets in the lower limit position provided in an embodiment of the present invention; Figure 6 Provided for embodiments of the present invention Figure 5 Enlarged structural diagram at point C; Figure 7 This is a schematic diagram of one of the pallets in the laying position according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure provided in the embodiment of the present invention, showing that each tray is in the corresponding lower limit position state; Figure 9 This is a schematic diagram of the guide groove on the guide rod provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the locking component structure provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the connecting chain structure provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Fixing frame; 101. Cable; 11. Guide rod; 12. Guide groove; 121. Spiral groove; 122. Vertical groove; 13. Bolt; 2. Support plate; 21. Fixing sleeve; 211. Slider; 3. Linkage assembly; 31. First hinge rod; 32. Second hinge rod; 33. Hinge shaft; 4. Support plate; 41. Hollow rod; 411. Connecting chain; 5. Locking element; 51. Wedge block; 52. Elastic element; 53. Connecting rod. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Please see Figure 1-11 This invention provides a cable positioning device for power distribution network construction, comprising multiple support units for laying cables 101. Each support unit includes a fixed frame 1 and multiple support plates 2. The fixed frame 1 is fixedly connected to the side wall of the cable trench. Each support plate 2 is vertically movably mounted on the fixed frame 1. During its movement relative to the fixed frame 1, each support plate 2 has an upper limit position parallel to the side wall of the cable trench and a lower limit position perpendicular to the side wall of the cable trench. When each support plate 2 moves from the upper limit position to the lower limit position, it passes through the same laying position. The support plate 2 at the laying position is perpendicular to the side wall of the cable trench. Specifically, each support plate 2 is fixedly connected to... There is a fixed sleeve 21, and each fixed sleeve 21 is rotatably connected to a slider 211. Each slider 211 is slidably connected to the fixed frame 1 through a corresponding slide groove. A support plate 4 is slidably connected to the fixed frame 1. A hollow rod 41 is fixedly connected to the support plate 4. The hollow rod 41 is horizontally slidably connected to the fixed frame 1. A taut connecting chain 411 is provided between the hollow rods 41 of two adjacent support units. The different slide grooves of each slider 211 result in different upper and lower limit positions of each corresponding support plate 2. The different upper limit positions of each support plate 2 allow them to overlap when they are at the upper limit position. The different lower limit positions of each support plate 2 result in a large gap between each support plate 2.

[0023] Working principle: Before laying cable 101, the worker must first connect each fixing bracket 1 to the embedded parts of the cable trench (the embedded parts are existing technology and are not shown in the figure, so they will not be described in detail here) using bolts 13. This allows each fixing bracket 1 to be fixedly connected to the cable trench. While fixing each fixing bracket 1, the worker can move the tray 2 closest to the bottom of the cable trench from its upper limit position to the laying position. At this time, the support plate 4 will support the tray 2, placing it in the laying position. Each worker stands on the ground to the side of the cable trench. Then... Each cable 101 is rolled up and placed on the ground beside the cable trench. Workers place each cable 101 onto the pallet 2 in sequence. Once the required number of cables 101 on the pallet 2 is reached, the worker on one side of the cable trench pulls the connecting chain 411 on the outermost fixed frame 1. Each connecting chain 411 moves each hollow rod 41, which in turn moves the corresponding support plate 4. At this time, each pallet 2 on the fixed frame 1 at the laying position will slide relative to the fixed frame 1 due to the weight of the cable 101, thus moving each pallet 2 from the laying position to the lower limit position. Then the worker on the outermost side... The worker pulls the connecting chain 411 on the fixing frame 1 so that the support plate 4 on each fixing frame 1 can support the pallet 2. The worker moves the next pallet 2 on each fixing frame 1 from its upper limit position to the laying position. The worker then lays the cable 101 rolled on the ground on the side of the cable trench onto the pallet 2 at the laying position. After the required number of cables 101 are laid on the pallet 2 at the laying position, the worker on one side of the cable trench pulls the connecting chain 411 on the outermost fixing frame 1. Each connecting chain 411 drives each hollow rod 41 to move, and each hollow rod 41 drives the corresponding support plate 4 to move. When the cable 101 is in the laying position, each tray 2 on each fixed frame 1 will slide relative to the fixed frame 1 under the weight of the cable 101, thereby moving each tray 2 from the laying position to the lower limit position. The worker repeats the above work to lay the cable 101 on each tray in turn. After each tray 2 on each fixed frame 1 is in the corresponding lower limit position, the cable 101 laying is completed and the cable positioning work of the power distribution network is realized. It is worth mentioning that by a tensioning rod that passes through each hollow rod 41 and is connected to each hollow rod 41, each hollow rod 41 can slide synchronously relative to the corresponding fixed frame 1.

[0024] In the above technical solution, the present invention provides a cable positioning device for power distribution network construction. The worker sequentially positions each tray 2 in the laying position to lay the cable 101 and then moves it to the corresponding lower limit position. On the one hand, the worker is not affected by other trays 2 when laying the cable 101 on the tray 2 in the laying position, which can effectively improve the laying efficiency. On the other hand, the worker only needs to operate on the side of the cable trench, which is convenient for the worker.

[0025] The fixed frame 1 is fixedly connected to a guide rod 11, and the guide rod 11 is provided with a guide groove 12. The guide groove 12 includes a spiral groove 121 and two vertical grooves 122. One end of the spiral groove 121 is connected to one of the vertical grooves 122, and the other end is connected to the other vertical groove 122. Each fixed sleeve 21 is provided with a ball bearing that rolls with the guide groove 12. A connecting rod assembly 3 is provided between two adjacent support plates 2. The connecting rod assembly 3 includes a first hinge rod 31, a second hinge rod 32, and a hinge shaft 33. One end of the first hinge rod 31 is hinged to one end of the second hinge rod 32 through the hinge shaft 33. The other end of the first hinge rod 31 and the other end of the second hinge rod 32 are respectively hinged to the two corresponding support plates 2.

[0026] Taking two pallets 2 as an example, during the process of the first pallet 2 moving from the laying position to its lower limit, the included angle between the first hinge rod 31 and the second hinge rod 32 rotates from an acute angle to an obtuse angle. Then, the hinge shaft 33 abuts against the fixed frame 1, so that the angle between the first hinge shaft 33 and the second hinge shaft 32 no longer changes. The first pallet 2 can pull the second pallet 2 from its upper limit position to the laying position. During the movement, the slider 211 on the second pallet 2 cooperates with the corresponding groove, allowing the pallet 2 to move vertically. The ball bearings in the fixed sleeve 21 on the pallet 2 first engage with the vertical groove 122 and then enter the spiral groove 121. The engagement of the ball bearings with the spiral groove 121 causes the second pallet 2 to rotate to a position perpendicular to the side wall of the cable trench. Then, the cable 101 is laid on the second pallet 2 in the laying position. Finally, the second pallet 2 is able to move from the laying position to the lower limit position corresponding to the second pallet 2 due to the gravity of the cable 101. During this process, the included angle between the first hinge rod 31 and the second hinge rod 32 rotates from an obtuse angle to an acute angle again.

[0027] The fixing frame 1 is also equipped with multiple locking components 5 that lock and fix the pallets 2 one by one. The locking component 5 includes a wedge block 51, an elastic element 52, and a connecting rod 53 with slots on the pallet 2. The wedge block 51 is horizontally slidably connected in the fixing frame 1, the connecting rod 53 is fixedly connected to the wedge block 51, and the elastic element 52 is disposed between the wedge block 51 and the fixing frame 1. The elastic element 52 is a spring, one end of which is connected to the wedge block 51 and the other end is connected to the fixing frame 1. Taking one pallet 2 as an example, during the process of moving the pallet 2 from the laying position to the lower limit position near the pallet, the pallet 2 will abut against the inclined surface of the wedge block 51, so that the wedge block 51 avoids The wedge block 51 also compresses the spring. When the tray 2 reaches its lower limit position, the wedge block 51 is able to reset due to the spring force and cooperate with the slot on the tray 2, so that the tray 2 can no longer be moved. This avoids the tray 2 from changing its position due to vibration. In addition, during the recycling of the fixing frame 1, the worker can pull the lever of the wedge block 51 to make the wedge block 51 move away, so that the worker can move the tray 2 from the lower limit position to the upper limit position for reuse. It is worth mentioning that the locking parts 5 are staggered, that is, the non-corresponding wedge block 51 cannot enter the slot of the tray 2.

[0028] Each fixing bracket 1 is equipped with multiple bolts 13, which enable each fixing bracket 1 to be connected to the embedded parts on the side wall of the cable trench, thereby allowing each fixing bracket 1 to be fixed on the side wall of the cable trench.

[0029] Each tray 2 is also provided with multiple through holes, which allow workers to use straps to pass through the through holes to secure the cable 101 to the tray 2, thereby constraining the position of the cable 101 on the tray 2.

[0030] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable positioning device for power distribution network construction, comprising multiple support units for laying cables, each support unit including a fixing frame and multiple trays, wherein the fixing frame is fixedly connected to the side wall of a cable trench, characterized in that, Each of the aforementioned pallets is vertically movable on the fixed frame. Each pallet has an upper limit position parallel to the side wall of the cable trench and a lower limit position perpendicular to the side wall of the cable trench during its movable stroke relative to the fixed frame. As each pallet moves from the upper limit position to the lower limit position, it passes through the same laying position, and the pallet at the laying position hangs on the side wall of the cable trench.

2. The cable positioning device for power distribution network construction according to claim 1, characterized in that, Each of the aforementioned pallets is fixedly connected to a fixing sleeve, and each fixing sleeve is rotatably connected to a slider. Each slider is slidably connected to the fixing frame through a corresponding slide groove.

3. A cable positioning device for power distribution network construction according to claim 1, characterized in that, A guide rod is fixedly connected inside the fixed frame. The guide rod has a guide groove, which includes a spiral groove and two vertical grooves. One end of the spiral groove is connected to one of the vertical grooves, and the other end is connected to the other vertical groove. Each fixed sleeve is provided with a ball bearing that rolls with the guide groove.

4. A cable positioning device for power distribution network construction according to claim 1, characterized in that, A linkage assembly is provided between two adjacent pallets. The linkage assembly includes a first hinge rod, a second hinge rod, and a hinge shaft. One end of the first hinge rod is hinged to one end of the second hinge rod via the hinge shaft. The other ends of the first and second hinge rods are respectively hinged to the two corresponding pallets.

5. A cable positioning device for power distribution network construction according to claim 1, characterized in that, A support plate is slidably connected to the fixed frame, and a hollow rod is fixedly connected to the support plate. The hollow rod is horizontally slidably connected to the fixed frame, and a taut connecting chain is provided between the hollow rods of two adjacent support units.

6. A cable positioning device for power distribution network construction according to claim 1, characterized in that, The fixing frame is also provided with a number of locking components that lock the tray one by one. The locking components include a wedge block, an elastic element, a connecting rod, and a slot opened on the tray. The wedge block is horizontally slidably connected in the fixing frame, the connecting rod is fixedly connected to the wedge block, and the elastic element is disposed between the wedge block and the fixing frame.

7. A cable positioning device for power distribution network construction according to claim 6, characterized in that, The elastic element is a spring, one end of which is connected to the wedge block and the other end is connected to the fixing frame.

8. A cable positioning device for power distribution network construction according to claim 1, characterized in that, Each of the aforementioned fixing brackets is equipped with multiple bolts.

9. A cable positioning device for power distribution network construction according to claim 1, characterized in that, Each of the aforementioned trays is also provided with multiple perforations.

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