Support structure for cable installation for power construction

Abstract

The invention discloses a cable installation support structure for power construction. The cable installation support structure comprises a fixed installation frame, a stretching mechanism and a height adjusting mechanism. The fixed mounting frame is internally connected with uniformly distributed connecting frames in a sliding manner; the stretching mechanism comprises side edge mounting chambers, telescopic cable mounting frames, stretching lead screws, transmission bevel gears, rotating cylinders and driving bevel gears, the side edge mounting chambers are fixedly connected to the left side faces and the right side faces of the four connecting frames correspondingly, and the telescopic cable mounting frames are slidably connected into the eight side edge mounting chambers correspondingly; extension screw rods are rotationally connected between the left inner walls and the right inner walls of the eight side edge mounting chambers, extension threaded cylinders are fixedly connected to the middles of the lower sides of the eight telescopic cable mounting frames correspondingly, and the interiors of the eight extension threaded cylinders are in threaded connection with the outer threaded faces of the extension screw rods located in the same side edge mounting chamber correspondingly; the support structure for cable installation for power construction meets different cable installation requirements for power construction.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction, in particular to a bracket structure for installing cables used in electric power construction. Background Art

[0002] Power engineering refers to engineering related to the production, transmission and distribution of electric energy. In a broad sense, it also includes engineering that uses electricity as power and energy in various fields. Cables are wires made of one or more mutually insulated conductors and an outer insulating protective layer, which are laid underground or in the air. Cables are generally composed of three parts: conductor, insulating layer and protective layer; In the prior art: Patent No. CN202411148818.8 discloses a bracket structure for cable installation for power construction, comprising: a mounting base plate, the upper surface of which is evenly provided with four fixing through holes; a bracket structure, comprising two movable vertical plates arranged above the mounting base plate; a cable lifting structure, comprising a rotatable crossbeam rotatably connected to the movable vertical plate, two cross-shaped bracket plates being fixedly installed on the outer side of the rotatable crossbeam, a plurality of connecting grooves being provided on the opposite surfaces of the two cross-shaped bracket plates, a connecting plate being plugged into the interior of each connecting groove, a plurality of plug-in holes being provided on the outer side of the connecting plate, and a U-shaped bracket plate being fixedly installed on the opposite surfaces of the two corresponding connecting plates on the left and right sides; There are some problems in the use of the above-mentioned cable installation bracket structure. For example, the number of wire clamping structures in the clavicle structure corresponds one to one with the reinforcement mechanism. When the number of cables is large, it cannot meet the cable installation needs of the power equipment at the construction site and requires additional installation. When adjusting the entire alternating height, it is necessary to repeatedly disassemble the bolts, and then locate the bolt mouths one by one and screw in the fixing bolts again. The operation is cumbersome. The crossbeam lifting structure is fastened with bolts. The tightness of the bolt installation determines the stability of the crossbeam lifting structure. If the operation is supplemented, the stability of the lifting structure will be reduced. The operation is relatively complicated. For this reason, we propose a bracket structure for cable installation for power construction. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a bracket structure for installing cables for power construction. The bracket has strong overall stability, meets different power construction cable installation requirements, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a bracket structure for installing cables for power construction, comprising a fixed installation frame, an extension mechanism and a height adjustment mechanism; Fixed mounting frame: Its internal sliding connection has evenly distributed connecting frames; Extension mechanism: it includes a side installation chamber, a telescopic cable installation frame, an extension screw, a transmission bevel gear, a rotating drum and a driving bevel gear, the side installation chambers are respectively fixedly connected to the left and right sides of the four connecting frames, the interiors of the eight side installation chambers are respectively slidably connected with the telescopic cable installation frames, the left and right inner walls of the eight side installation chambers are rotatably connected with the extension screw, the middle parts of the lower sides of the eight telescopic cable installation frames are respectively fixedly connected with the extension threaded cylinders, the interiors of the eight extension threaded cylinders are respectively threadedly connected with the external threaded surfaces of the extension screws located in the same side installation chamber, the eight extension screws are respectively fixedly connected with the transmission bevel gears at one end facing the fixed installation frame, the middle parts of the lower side walls of the four connecting frames are rotatably connected with the rotating drums, the upper sides of the outer arc surfaces of the four rotating drums are respectively fixedly connected with the driving bevel gears, and the four driving bevel gears are meshed and connected with the two transmission bevel gears located on the same horizontal plane; Height adjustment mechanism: It is arranged on the lower side of the fixed mounting frame. The height adjustment mechanism is fixedly connected to the connecting frame to meet different power construction cable installation requirements.

[0005] Furthermore, the lower inner side of the fixed mounting frame is fixedly connected to an upper mounting chamber, the lower end of the upper mounting chamber is fixedly connected to a lower mounting box, and an isolation mounting plate is fixedly connected to the middle between the left and right inner walls of the lower mounting box to realize the function of installing the driving structure.

[0006] Furthermore, the extension mechanism also includes a transmission rod, a first worm gear and a first worm wheel. The transmission rod is rotatably connected to the middle part of the upper mounting chamber, the upper end of the transmission rod is rotatably connected to the upper side wall of the fixed mounting frame, the interiors of the four rotating drums are slidably connected to the outer arc surface of a transmission rod, the middle parts of the upper side walls and the middle parts of the lower side walls of the four connecting frames are respectively provided with avoidance grooves, the transmission rod longitudinally passes through the interiors of the eight avoidance grooves, the lower side of the outer arc surface of the transmission rod is fixedly connected to the first worm wheel, the first worm gear is rotatably connected between the front and rear inner walls of the upper mounting chamber, the first worm gear is meshingly connected to the first worm wheel, and the front end of the first worm gear is fixedly connected to a stretching adjustment handwheel to provide power for stretching.

[0007] Furthermore, the height adjustment mechanism and the extension cylinder, the limit mounting frame, the vertical limit sliding cylinder, the vertical adjustment threaded cylinder, the vertical rotating rod, the external thread, the second worm gear and the second worm gear, the extension cylinder is evenly arranged on the upper surface and the lower surface of the four connecting frames, the internal parts of the four connecting frames are respectively fixedly connected to the limit mounting frames, the inner arc surfaces of every four longitudinally adjacent extension cylinders are slidably connected with a vertical rotating rod, the upper ends of the four vertical rotating rods are rotatably connected to the upper side wall of a fixed mounting frame, the four vertical rotating rods are rotatably connected to the middle part of an upper side mounting chamber, the lower ends of the four vertical rotating rods are rotatably connected to the lower side wall of a lower side mounting box, the outer arc surfaces of the four vertical rotating rods are respectively provided with external threads, the heights of the four sections of external threads are different, and the four sections of external threads are The outer thread surface is respectively threadedly connected with a vertical adjustment threaded cylinder, the outer surfaces of the four vertical adjustment threaded cylinders are fixedly connected to the middle part of the limit mounting frame located at the same horizontal position, the outer arc surfaces of the four vertical rotating rods are movably sleeved with a vertical limit sliding cylinder, the outer surfaces of every three vertical limit sliding cylinders located at the same horizontal plane are fixedly connected to the middle part of the limit mounting frame located at the same horizontal plane, the lower sides of the outer arc surfaces of the four vertical rotating rods are respectively fixedly connected with a second worm gear, the front surface and the rear surface of the isolation mounting plate are respectively symmetrically connected to the second worm gear for rotation, the ends of the four second worm gears are respectively rotatably connected to the inner wall of the lower mounting box, and the four second worm gears are respectively meshed with the second worm gears located on the same side, to realize the function of single height adjustment of each connecting frame.

[0008] Furthermore, the height adjustment mechanism also includes a twist valve, and the front ends of the two second worm gears on the front side and the rear ends of the two second worm gears on the rear side are respectively fixedly connected with the twist valves to realize the function of manually driving the height adjustment.

[0009] Furthermore, the upper surfaces of the eight telescopic cable mounting brackets are respectively provided with mounting bolt openings, and the interiors of the mounting bolt openings are respectively fixedly connected with cable fixing clamps by bolts, so as to realize the function of fixing the external cables; Furthermore, the lower end of the fixed mounting frame is fixedly connected to a bottom external mounting frame, and the lower surface of the bottom external mounting frame is provided with evenly distributed grounding bolt grooves to achieve the function of externally connecting external equipment.

[0010] Furthermore, the length of the external thread is half of the height of the connecting frame, which limits the maximum adjustment distance of each connecting frame to prevent collision between the frames.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the bracket structure for installing the cable for power construction has the following advantages: 1. The cable installation height of this bracket can be adjusted according to the needs of power construction, so that one bracket can be used for multiple purposes and meet the cable installation needs of different power equipment.

[0012] 2. The drive of this structure adopts the transmission mode of worm gear, which is more accurate when manually adjusting the height and telescopic degree of the frame.

[0013] 3. The mounting arm is installed telescopically, and then the mounting arm is driven to extend and retract by the screw rod structure. The adjustment method is simple, and the telescopic length of the mounting arm can be adjusted according to the construction requirements. After the adjustment is completed, it can be affected by the self-locking effect of the screw rod to lock the telescopic frame, thereby ensuring the overall stability of the bracket, meeting different power construction cable installation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the fixed mounting frame of the present invention; Figure 3 This is an enlarged structural schematic diagram of location A of the present invention; Figure 4 This is a schematic diagram of the internal structure of the connecting frame of the present invention; Figure 5 This is a schematic diagram of the enlarged structure of B of the present invention; Figure 6 It is a structural schematic diagram of the telescopic cable installation frame of the present invention; Figure 7 It is a structural schematic diagram of the rotating drum and the transmission rod of the present invention; Figure 8 It is a schematic structural diagram of the extension tube and the vertical rotating rod of the present invention.

[0015] In the figure: 1 fixed mounting frame, 2 connecting frame, 3 extension mechanism, 31 side mounting chamber, 32 telescopic cable mounting frame, 33 extension screw, 34 transmission bevel gear, 35 rotating cylinder, 36 driving bevel gear, 37 transmission rod, 38 first worm, 39 first worm wheel, 4 upper mounting chamber, 5 extension adjustment hand wheel, 6 height adjustment mechanism, 61 extension cylinder, 62 limit mounting frame, 63 vertical limit sliding cylinder, 64 vertical adjustment threaded cylinder, 65 vertical rotating rod, 66 external thread, 67 second worm wheel, 68 second worm, 69 twist valve, 7 lower mounting box, 8 isolation mounting plate, 9 bottom external mounting frame, 10 mounting bolt mouth, 11 cable fixing clamp. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-8 , This embodiment provides a technical solution: a bracket structure for cable installation for power construction, comprising a fixed installation frame 1, an extension mechanism 3 and a height adjustment mechanism 6; Fixed mounting frame 1: a connection frame 2 evenly distributed is slidably connected inside the fixed mounting frame 1, an upper mounting chamber 4 is fixedly connected to the lower side of the fixed mounting frame 1, a lower mounting box 7 is fixedly connected to the lower end of the upper mounting chamber 4, an isolation mounting plate 8 is fixedly connected to the middle between the left and right inner walls of the lower mounting box 7, a bottom external mounting frame 9 is fixedly connected to the lower end of the fixed mounting frame 1, and evenly distributed grounding bolt grooves are provided on the lower surface of the bottom external mounting frame 9. When the cable needs to be installed, the entire bracket can be installed to the designated workstation through the grounding bolt groove on the bottom external mounting frame 9 and the external grounding bolt, and then multiple groups of the brackets can be installed in sequence according to the needs of power construction; The stretching mechanism 3 includes a side installation chamber 31, a telescopic cable installation frame 32, a stretching screw rod 33, a transmission bevel gear 34, a rotating drum 35 and a driving bevel gear 36. The side installation chamber 31 is respectively fixedly connected to the left and right sides of the four connecting frames 2. The interiors of the eight side installation chambers 31 are respectively slidably connected with the telescopic cable installation frames 32. The left and right inner walls of the eight side installation chambers 31 are rotatably connected with the stretching screw rod 33. The thread directions of the four stretching screw rods 33 on the left are opposite to those of the four stretching screw rods 33 on the right. The middle parts of the lower sides of the eight telescopic cable installation frames 32 are respectively fixedly connected with the stretching threaded cylinders. The interiors of the eight stretching threaded cylinders are respectively connected to the side installation chambers 31 located in the same side installation chamber 31. The outer thread surface of the stretching screw rod 33 inside is threadedly connected, and the eight stretching screw rods 33 are fixedly connected to the transmission bevel gears 34 at one end facing the fixed mounting frame 1. The middle part of the lower side wall of the four connecting frames 2 is rotatably connected with a rotating drum 35, and the upper sides of the outer arc surfaces of the four rotating drums 35 are respectively fixedly connected to the driving bevel gears 36. The four driving bevel gears 36 are meshed and connected with the two transmission bevel gears 34 located on the same horizontal plane. The stretching mechanism 3 also includes a transmission rod 37, a first worm 38 and a first worm wheel 39. The transmission rod 37 is rotatably connected to the middle part of the upper mounting chamber 4, and the upper end of the transmission rod 37 is rotatably connected to the upper side wall of the fixed mounting frame 1. The interiors of the four rotating drums 35 are slidably connected to the outer arc surface of a transmission rod 37. Avoidance grooves are respectively provided in the middle of the upper side wall and the middle of the lower side wall of the receiving frame 2, and the transmission rod 37 passes through the interior of the eight avoidance grooves longitudinally. The lower side of the outer arc surface of the transmission rod 37 is fixedly connected to the first worm gear 39, and the first worm 38 is rotatably connected between the front and rear inner walls of the upper installation chamber 4. The first worm 38 is meshed and connected with the first worm gear 39, and the front end of the first worm 38 is fixedly connected to the extension adjustment hand wheel 5. The upper surfaces of the eight telescopic cable mounting frames 32 are respectively provided with mounting bolt openings 10, and the interiors of the mounting bolt openings 10 are respectively fixedly connected with cable fixing clamps 11 by bolts. Then, according to the use requirements, the extension adjustment hand wheel 5 is manually rotated forward and reversely, thereby driving the first worm 38 to rotate forward and reversely, and then through the first The worm gear 39 drives the transmission rod 37 to rotate forward and reversely, thereby driving the four driving bevel gears 36 to rotate forward and reversely through the rotating drum 35, thereby driving the sixteen transmission bevel gears 34 to rotate forward and reversely, thereby driving the four groups of telescopic cable mounting frames 32 on the left and the four groups of telescopic cable mounting frames 32 on the right to move relatively away from and relatively close to each other. During this process, the telescopic cable mounting frames 32 are extended from the side mounting chamber 31. At this time, according to the construction requirements, the telescopic cable mounting frames 32 are extended to a specified length, and then the cable fixing clamps 11 are installed on the telescopic cable mounting frames 32 through external bolts. After the cable fixing clamps 11 are installed one by one, the height of each connecting frame 2 can be adjusted; Height adjustment mechanism 6: It is arranged on the lower side of the fixed mounting frame 1, and the height adjustment mechanism 6 is fixedly connected to the connecting frame 2. The height adjustment mechanism 6 and the extension cylinder 61, the limit mounting frame 62, the vertical limit sliding cylinder 63, the vertical adjustment threaded cylinder 64, the vertical rotating rod 65, the external thread 66, the second worm gear 67 and the second worm 68, the extension cylinder 61 is evenly arranged on the upper surface and the lower surface of the four connecting frames 2, and the interiors of the four connecting frames 2 are respectively fixedly connected to the limit mounting frame 62, and the inner arc surfaces of each of the four longitudinally adjacent extension cylinders 61 are slidably connected to a vertical rotating rod 65, and the upper ends of the four vertical rotating rods 65 are rotatably connected to the upper side wall of a fixed mounting frame 1, and the four vertical rotating rods 65 are rotatably connected. The four vertical rotating rods 65 are rotatably connected to the middle part of an upper installation chamber 4, and the lower ends of the four vertical rotating rods 65 are rotatably connected to the lower side wall of a lower installation box 7. The outer arc surfaces of the four vertical rotating rods 65 are respectively provided with external threads 66, and the heights of the four sections of external threads 66 are different. The external thread surfaces of the four sections of external threads 66 are respectively threadedly connected with vertical adjustment threaded cylinders 64, and the outer surfaces of the four vertical adjustment threaded cylinders 64 are all fixedly connected to the middle part of the limit mounting frame 62 located at the same horizontal position. The outer arc surfaces of the four vertical rotating rods 65 are respectively movably sleeved with vertical limit sliding cylinders 63, and the outer surfaces of every three vertical limit sliding cylinders 63 located at the same horizontal plane are connected to the limit mounting frame 62 located at the same horizontal plane. The middle part of the mounting frame 62 is fixedly connected, and the lower sides of the outer arc surfaces of the four vertical rotating rods 65 are respectively fixedly connected with the second worm gears 67, and the front surface and the rear surface of the isolation mounting plate 8 are respectively symmetrically rotatably connected with the second worm 68, and the ends of the four second worm gears 68 are respectively rotatably connected with the inner wall of the lower mounting box 7, and the four second worm gears 67 are respectively meshed and connected with the second worm gears 68 located on the same side: the height adjustment mechanism 6 also includes a twist valve 69, and the front ends of the two second worm gears 68 on the front side and the rear ends of the two second worm gears 68 on the rear side are respectively fixedly connected with the twist valves 69, and the length of the external thread 66 is half of the height of the connecting frame 2. At this time, the twist valve at the corresponding position can be rotated, and then The second worm gear 68 at the corresponding position is driven to rotate forward and reverse, and then the vertical rotating rod 65 is driven to rotate forward and reverse through the second worm gear 67 at the corresponding position, and then the vertical adjustment threaded cylinder 64 at the corresponding position is driven to adjust the up and down position through the external thread 66 at the corresponding position, so as to realize the height adjustment of the connecting frame 2 at the corresponding position. At this time, the height adjustment of the remaining three groups of connecting frames 2 can be adjusted, and the two telescopic cable mounting frames 32 located on the same horizontal plane can be moved in turn to the specified height. At this time, the cables used for power construction can be installed on the cable fixing clamp 11 in turn. At this time, the positions of the remaining brackets can be adjusted in the above manner to complete the support and installation of the cable.

[0018] The working principle of the bracket structure for cable installation for power construction provided by the present invention is as follows: when the cable installation is required, the entire bracket can be installed to the designated work station through the grounding bolt groove and the external grounding bolt on the bottom external mounting frame 9, and then multiple groups of the brackets are installed in sequence according to the needs of power construction, and then according to the use requirements, the extension adjustment hand wheel 5 is manually rotated forward and reverse, thereby driving the first worm gear 38 to rotate forward and reverse, and then driving the transmission rod 37 to rotate forward and reverse through the first worm gear 39, thereby driving the four driving bevel gears 36 to rotate forward and reverse at the same time through the rotating drum 35, thereby driving the sixteen transmission bevel gears 34 to rotate forward and reverse, thereby driving the four groups of telescopic cable mounting frames 32 on the left and the four groups of telescopic cable mounting frames 32 on the right to move relatively away from and relatively close to each other. In this process, the telescopic cable mounting frame 32 is extended from the side mounting chamber 31. At this time, according to the construction needs, the telescopic cable The mounting frame 32 is extended to a specified length, and then the cable fixing clamp 11 is installed on the telescopic cable mounting frame 32 through the external bolts. After the cable fixing clamps 11 are installed one by one, the height of each connecting frame 2 can be adjusted. At this time, the twist valve at the corresponding position can be rotated to drive the second worm gear 68 at the corresponding position to rotate forward and reversely, and then the vertical rotating rod 65 is driven to rotate forward and reversely through the second worm gear 67 at the corresponding position, and then the vertical adjustment threaded cylinder 64 at the corresponding position is driven to adjust the up and down position through the external thread 66 at the corresponding position, thereby realizing the height adjustment of the connecting frame 2 at the corresponding position. At this time, the height adjustment of the remaining three groups of connecting frames 2 can be adjusted, and the two telescopic cable mounting frames 32 located on the same horizontal plane are moved in turn to the specified height. At this time, the cables used for power construction can be installed on the cable fixing clamps 11 in turn. At this time, the positions of the remaining brackets can be adjusted in the above manner to complete the support and installation of the cable lines.

[0019] It is worth noting that the cable fixing clamp 11 disclosed in the above embodiment is recommended to be a JGH type aluminum alloy single-core cable clamp.

[0020] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bracket structure for installing cables for power construction, characterized in that: It comprises a fixed mounting frame (1), an extension mechanism (3) and a height adjustment mechanism (6); Fixed mounting frame (1): internally slidably connected to evenly distributed connecting frames (2); The extension mechanism (3) comprises a side installation chamber (31), a telescopic cable installation frame (32), an extension screw rod (33), a transmission bevel gear (34), a rotating drum (35) and a driving bevel gear (36), wherein the side installation chamber (31) is respectively fixedly connected to the left side and right side of the four connection frames (2), the interiors of the eight side installation chambers (31) are respectively slidably connected to the telescopic cable installation frames (32), the left and right inner walls of the eight side installation chambers (31) are rotatably connected to the extension screw rod (33), and the lower middle portions of the eight telescopic cable installation frames (32) are respectively fixedly connected to the left and right sides of the four connection frames (2). A stretching threaded cylinder is fixedly connected, the interiors of the eight stretching threaded cylinders are respectively threadedly connected to the external threaded surfaces of the stretching screw rods (33) located in the same side mounting chamber (31), the eight stretching screw rods (33) are respectively fixedly connected to the transmission bevel gears (34) at one end facing the fixed mounting frame (1), the middle parts of the lower side walls of the four connecting frames (2) are rotatably connected to rotating cylinders (35), the upper sides of the outer arc surfaces of the four rotating cylinders (35) are respectively fixedly connected to driving bevel gears (36), and the four driving bevel gears (36) are meshedly connected to the two transmission bevel gears (34) located in the same horizontal plane; Height adjustment mechanism (6): It is arranged on the lower side of the fixed mounting frame (1), and the height adjustment mechanism (6) is fixedly connected to the connecting frame (2).

2. A bracket structure for installing a cable for electric power construction according to claim 1, characterized in that: An upper mounting chamber (4) is fixedly connected to the lower side of the interior of the fixed mounting frame (1), a lower mounting box (7) is fixedly connected to the lower end of the upper mounting chamber (4), and an isolation mounting plate (8) is fixedly connected to the middle portion between the left and right inner walls of the lower mounting box (7).

3. A bracket structure for installing a cable for electric power construction according to claim 2, characterized in that: The stretching mechanism (3) further comprises a transmission rod (37), a first worm (38) and a first worm wheel (39); the transmission rod (37) is rotatably connected to the middle of the upper mounting chamber (4); the upper end of the transmission rod (37) is rotatably connected to the upper side wall of the fixed mounting frame (1); the interior of each of the four rotating cylinders (35) is slidably connected to the outer arc surface of a transmission rod (37); the middle of the upper side wall and the middle of the lower side wall of the four connecting frames (2) are respectively provided with avoidance grooves; the transmission rod (37) longitudinally passes through the interior of the eight avoidance grooves; the lower side of the outer arc surface of the transmission rod (37) is fixedly connected to the first worm wheel (39); the first worm (38) is rotatably connected between the front and rear inner walls of the upper mounting chamber (4); the first worm (38) is meshingly connected to the first worm wheel (39); and the front end of the first worm (38) is fixedly connected to the stretching adjustment hand wheel (5).

4. A bracket structure for installing cables for power construction according to claim 3, characterized in that: The height adjustment mechanism (6) comprises an extension tube (61), a limit mounting frame (62), a vertical limit sliding tube (63), a vertical adjustment threaded tube (64), a vertical rotating rod (65), an external thread (66), a second worm wheel (67) and a second worm (68). The extension tube (61) is evenly arranged on the upper surface and the lower surface of the four connecting frames (2). The inner parts of the four connecting frames (2) are respectively fixedly connected to the limit mounting frames (62). The inner arc surfaces of each of the four longitudinally adjacent extension tubes (61) are slidably connected to a vertical rotating rod (65). The upper ends of the four vertical rotating rods (65) are rotatably connected to the upper side wall of a fixed mounting frame (1). The four vertical rotating rods (65) are rotatably connected to the middle part of an upper mounting chamber (4). The lower ends of the four vertical rotating rods (65) are rotatably connected to the lower side wall of a lower mounting box (7). The outer arc surfaces of the four vertical rotating rods (65) are respectively provided with external threads (66). The four sections of external threads (66) have different heights. The external thread surfaces of the four sections of external threads (66) are respectively threadedly connected with vertical adjustment threaded cylinders (64). The outer surfaces of the four vertical adjustment threaded cylinders (64) are fixedly connected to the middle of the limit mounting frame (62) located at the same horizontal position. The outer arc surfaces of the four vertical rotating rods (65) are respectively movably sleeved with vertical limit sliding cylinders (63). The outer surfaces of every three vertical limit sliding cylinders (63) located at the same horizontal plane are fixedly connected to the middle of the limit mounting frame (62) located at the same horizontal plane. The lower sides of the outer arc surfaces of the four vertical rotating rods (65) are respectively fixedly connected with second worm gears (67). The front surface and the rear surface of the isolation mounting plate (8) are respectively symmetrically rotatably connected with second worm gears (68). The ends of the four second worm gears (68) are respectively rotatably connected to the inner wall of the lower mounting box (7). The four second worm gears (67) are respectively meshed with the second worm gears (68) located on the same side.

5. A bracket structure for installing cables for power construction according to claim 4, characterized in that: The height adjustment mechanism (6) further comprises a twist valve (69), and the front ends of the two second worm gears (68) on the front side and the rear ends of the two second worm gears (68) on the rear side are respectively fixedly connected with the twist valve (69).

6. A bracket structure for installing cables for power construction according to claim 1, characterized in that: The upper surfaces of the eight telescopic cable mounting frames (32) are respectively provided with mounting bolt openings (10), and the interiors of the mounting bolt openings (10) are respectively fixedly connected with cable fixing clamps (11) by means of bolts.

7. A bracket structure for installing cables for power construction according to claim 1, characterized in that: The lower end of the fixed mounting frame (1) is fixedly connected to a bottom external mounting frame (9), and the lower surface of the bottom external mounting frame (9) is provided with evenly distributed grounding bolt grooves.

8. A bracket structure for installing cables for power construction according to claim 4, characterized in that: The length of the external thread (66) is half the height of the connecting frame (2).

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