Breakage-proof support frame for power cable in thermal expansion and cold contraction environment

Abstract

The utility model discloses an electric power cable breakage-proof supporting frame in a thermal expansion and cold contraction environment. The electric power cable breakage-proof supporting frame comprises a supporting rod, a U-shaped frame installed on the top of the supporting rod and a clamping mechanism installed in the U-shaped frame. The horizontal part of the U-shaped frame is fixedly installed at the top of the supporting rod, the two height adjusting mechanisms are arranged on the two oppositely-arranged vertical parts of the U-shaped frame respectively, the clamping mechanism is arranged between the two vertical parts, and the two ends of the clamping mechanism are connected with the height adjusting mechanisms through elastic assemblies respectively; the elastic assembly comprises an installation shell fixedly connected with the height adjusting mechanism, a fixing column arranged in the direction of the power cable is installed in the installation shell, an installation plate slidably connected with the fixing column is arranged on the fixing column, and a connecting spring is arranged between the installation plate and each of the two side walls of the installation shell. A sliding groove arranged in the same direction as the fixing column is formed in the side, facing the clamping mechanism, of the mounting shell, the mounting plate penetrates through the sliding groove to be fixedly connected with the clamping mechanism, and the mounting plate can slide along the sliding groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power cable support, concretely relates to a kind of power cable anti-break support frame under thermal expansion and cold shrink environment. BACKGROUND

[0002] Power cable is the cable for transmission and distribution of electric energy, and is often used in urban underground power grid, power station outgoing line, internal power supply of industrial and mining enterprises and underwater power transmission line across river and sea. In power line, the proportion of cable is gradually increasing. Power cable is a cable product used for transmission and distribution of high-power electric energy in the main line of power system.

[0003] When laying and using power cable, support is needed to support power cable. However, the existing support generally fixes and clamps power cable when in use. However, due to thermal expansion and cold shrink, the volume of power cable changes in the use process, i.e. the diameter and length of power cable change in winter and summer, which makes it difficult for ordinary fixed clamping to adapt to the change of thermal expansion and cold shrink of power cable, and easily causes damage to cable.

[0004] If the damage is only skin-deep, it does not affect the electrical performance, but water corrosion will reduce the cable carrying capacity, and potential hazards are difficult to estimate in long-term use. Serious damage will reduce the ground insulation resistance and cause overheating of ground discharge. Long-term overheating will cause aging, and eventually the cable will be punctured.

[0005] In summary, the damage of cable is great, mainly in the following aspects:

[0006] First, it causes electric shock and personal injury accidents;

[0007] Second, it causes short circuit and heating, which leads to fire, causing huge property loss and possibly endangering life;

[0008] Third, it causes power outage and maintenance, causing economic loss.

[0009] Therefore, in view of the problem that the existing cable fixed clamping is difficult to adapt to the change of thermal expansion and cold shrink of power cable, and easily causes damage to cable, it is urgent to develop a kind of power cable anti-break support frame under thermal expansion and cold shrink environment, which can adapt to the thermal expansion and cold shrink of power cable at different temperatures, prevent damage to power cable and improve the safety of power use. Utility model content

[0010] The utility model aims to provide a kind of power cable anti-break support frame under thermal expansion and cold shrink environment, to solve the problem that the existing cable fixed clamping is difficult to adapt to the change of thermal expansion and cold shrink of power cable, and easily causes damage to cable.

[0011] To solve the above technical problems, the application provides a thermal expansion and contraction environment power cable anti-breakage support frame, which comprises a support rod, a U-shaped frame installed on the top of the support rod, and a clamping mechanism installed in the U-shaped frame; the horizontal part of the U-shaped frame is fixedly installed on the top of the support rod, the two opposite vertical parts of the U-shaped frame are respectively provided with a height adjusting mechanism, the clamping mechanism is arranged between the two vertical parts, and the two ends of the clamping mechanism are respectively connected with the height adjusting mechanisms through elastic components.

[0012] The elastic component comprises a fixedly connected installation shell with the height adjusting mechanism, a fixed column arranged along the direction of the power cable is installed in the installation shell, the fixed column is provided with an installation plate in sliding connection with the fixed column, a connecting spring is arranged between the installation plate and the two side walls of the installation shell, and the side of the installation shell facing the clamping mechanism is provided with a sliding groove arranged in the same direction as the fixed column.

[0013] Further, the clamping mechanism comprises a lower fixed shell and an upper fixed plate oppositely installed, a plurality of clamping pieces arranged towards the upper fixed plate are arranged on the lower fixed shell, and the power cable is clamped between the upper fixed plate and the clamping pieces.

[0014] Further, the clamping mechanism further comprises a limiting column, a plurality of limiting columns are fixedly connected to the inner side of the lower fixed shell, the limiting columns are in penetrating connection with a limiting plate, a plurality of sliding columns are fixedly connected to the top of the limiting plate, the top ends of the sliding columns are fixedly connected with the bottom of the clamping pieces, and the sliding columns are in penetrating connection with the top surface of the lower fixed shell.

[0015] Further, one side of the upper fixed plate facing the clamping pieces is provided with a flexible pad (auxiliary clamping air bag).

[0016] Further, one side of the clamping piece facing the upper fixed plate is provided with a groove matched with the power cable.

[0017] Further, the lower fixed shell and the upper fixed plate are connected through a disassembly and assembly component; the disassembly and assembly component comprises disassembly and assembly shells arranged at the two ends of the lower fixed shell respectively, the top of the disassembly and assembly shell is provided with an inwardly recessed fixed groove, the two ends of the upper fixed plate are respectively provided with a disassembly and assembly plate matched with the fixed groove, and the disassembly and assembly plate is fixedly arranged in the fixed groove through a locking piece.

[0018] Further, the height adjusting mechanism comprises a vertically arranged lead screw, a sliding block in screw thread cooperation with the lead screw is arranged on the lead screw, one end of the lead screw is connected with a driving component, the other end of the lead screw is rotatably connected with the top of the vertical part of the clamping mechanism, and the sliding block is fixedly connected with the installation shell.

[0019] Further, an angle adjusting device is arranged between the height adjusting mechanism and the support rod, and the angle adjusting device comprises an inclination adjusting mechanism for adjusting the rotation of the U-shaped frame in the vertical direction and a rotation adjusting mechanism fixedly installed at the top of the support rod, and the inclination adjusting mechanism is installed between the rotation adjusting mechanism and the U-shaped frame.

[0020] Further, the rotation adjusting mechanism comprises a rotating plate and a support plate arranged in a vertical direction, the top of the support plate is rotatably connected with a plurality of support balls arranged in a ring array, the support balls are slidably connected with the bottom surface of the rotating plate, the middle of the support plate is provided with a reinforcing column protruding upward, the reinforcing column is penetratingly connected with the rotating plate, and the top end of the reinforcing column is provided with a positioning assembly;

[0021] The positioning assembly comprises a positioning housing fixedly installed at the top end of the reinforcing column, a plurality of return springs are installed on the inner wall of the top surface of the positioning housing, the bottom end of the return spring is connected with the top of the moving plate, the bottom of the moving plate is fixedly connected with two symmetrically distributed adjusting columns, the top of the moving plate is provided with an adjusting bolt, the adjusting bolt is threadedly connected with the top surface of the positioning housing, the bottom surface of the positioning housing is provided with two symmetrically distributed moving holes, the top surface of the rotating plate is provided with a plurality of anti-rotation holes arranged in a ring array, the adjusting column is penetratingly connected with the bottom surface of the positioning housing through the moving hole, and the adjusting column is connected with the rotating plate through the anti-rotation hole.

[0022] Further, the inclination adjusting mechanism comprises two angle adjusting plates symmetrically arranged at the bottom of the U-shaped plate, the two sides of the angle adjusting plate are rotatably connected with side plates, the side plates are fixedly connected with the top of the rotating plate, and the angle adjusting plate and the side plate are connected through a limiting assembly.

[0023] The limiting assembly comprises a two-way threaded column, threaded sleeves are threadedly connected at both ends of the two-way threaded column, the threaded sleeves are penetratingly connected with the L-shaped plate, and the L-shaped plate is fixedly connected with the side plate; the angle adjusting plate is provided with a plurality of moving limiting holes arranged in a ring array, the side plate is provided with a fixed limiting hole, and the threaded sleeve is connected with the angle adjusting plate and the side plate through the moving limiting hole and the fixed limiting hole respectively.

[0024] Further, the support frame further comprises a connecting mechanism arranged at the bottom of the support rod, the connecting mechanism comprises a connecting frame plate, the top of the connecting frame plate is fixedly connected with the bottom end of the support rod, a plurality of sliding plates are slidably connected with the inner side of the connecting frame plate, one side of the sliding plate is fixedly connected with a connecting column, the connecting column is meshingly connected with the side surface of the connecting frame plate, the end of the connecting column away from the sliding plate is fixedly connected with a U-shaped plate, the inner side of the U-shaped plate is fixedly connected with a center shaft, and the surface of the center shaft is rotatably connected with an adjustable connecting plate; the two sides of the sliding plate are fixedly connected with anti-deviation columns, the connecting frame plate is provided with anti-deviation grooves, and the anti-deviation columns are slidably connected with the connecting frame plate through the anti-deviation grooves.

[0025] The utility model discloses a beneficial effect is: through adopting elastic component, can when the power cable because of the different of winter and summer and the thermal expansion and cold shrink pull and hold mechanism, make the holding mechanism have certain activity margin to adapt to the change of power cable, and avoid hard pull power cable and cause power cable damage, realize the protection power cable, improve the purpose of electric safety. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application. In the drawings:

[0027] Figure 1 It is the stereogram structure schematic drawing of the application of a kind of power cable support frame of preventing damage under thermal expansion and cold shrink environment;

[0028] Figure 2 It is the internal structure schematic drawing of the application of a kind of power cable support frame of preventing damage under thermal expansion and cold shrink environment;

[0029] Figure 3 It is the overhead structure schematic drawing of the application of a kind of power cable support frame of preventing damage under thermal expansion and cold shrink environment;

[0030] Figure 4 It is the position relation explosion drawing between upper fixed plate, auxiliary holding air bag and dismounting assembly;

[0031] Figure 5 It is the position relation explosion drawing between clamping piece, limiting column, sliding plate and sliding column;

[0032] Figure 6 It is the explosion drawing of elastic connecting mechanism;

[0033] Figure 7 It is the position relation schematic drawing between angle adjusting plate, side plate, rotating plate and L-shaped plate;

[0034] Figure 8 It is Figure 2 The A place local amplification structure schematic drawing of of;

[0035] Figure 9 It is the position relation schematic drawing between sliding plate, connecting column, U-shaped plate and center shaft;

[0036] Wherein: 1, clamping mechanism;11, lower fixed shell;12, clamping piece;13, upper fixed plate;14, auxiliary holding air bag;15, dismounting assembly;151, dismounting shell;152, fixed stud assembly;153, dismounting plate;16, limiting column;17, limiting plate;18, sliding column;

[0037] 2. Height adjustment mechanism; 21. Horizontal part of U-shaped frame; 22. Vertical part; 23. Positioning column; 24. Slider; 25. Lead screw; 3. Elastic component;

[0038] 31. Mounting plate; 32. Fixing post; 33. Mounting housing; 34. Connecting spring;

[0039] 4. Tilt adjustment mechanism; 41. Adjustment plate; 42. Side plate; 43. Rotating plate; 44. Two-way threaded column; 45. Threaded sleeve; 46. L-shaped plate;

[0040] 5. Rotary adjustment mechanism; 51. Support plate; 52. Support ball; 53. Reinforcing column; 54. Positioning housing; 55. Return spring; 56. Moving plate; 57. Adjusting column; 58. Adjusting bolt;

[0041] 6. Support rod;

[0042] 7. Connecting mechanism; 71. Connecting frame plate; 72. Sliding plate; 73. Connecting column; 74. U-shaped plate; 75. Central shaft; 76. Adjustable connecting plate; 77. Anti-deviation column. Detailed Implementation

[0043] like Figure 1 and Figure 2 The power cable anti-damage support frame shown includes a support rod 6, a U-shaped frame on the top of the support rod 6, and a clamping mechanism 1 installed in the U-shaped frame. The horizontal part 21 of the U-shaped frame is fixedly installed on the top of the support rod 6. A height adjustment mechanism 2 is provided on each of the two oppositely arranged vertical parts 22 of the U-shaped frame. The clamping mechanism 1 is located between the two vertical parts 22. The two ends of the clamping mechanism 1 are connected to the height adjustment mechanism 2 through elastic components 3.

[0044] like Figure 6 As shown, the elastic component 3 includes a mounting housing 33 fixedly connected to the height adjustment mechanism 2. A fixed post 32 arranged along the direction of the power cable is installed inside the mounting housing 33. A mounting plate 31 is provided on the fixed post 32 and slidably connected to the fixed post 32. A connecting spring 34 is provided between the mounting plate 31 and the two side walls of the mounting housing 33 respectively. A sliding groove is provided on the side of the mounting housing 33 facing the clamping mechanism 1, which is arranged in the same direction as the fixed post 32. The mounting plate 31 passes through the sliding groove and is fixedly connected to the clamping mechanism 1. The mounting plate 31 can slide along the sliding groove.

[0045] By employing an elastic component 3, this invention allows the clamping mechanism 1 to have a certain amount of flexibility to adapt to changes in the power cable due to thermal expansion and contraction caused by winter and summer, thus avoiding damage to the power cable caused by pulling it too hard. This achieves the purpose of protecting the power cable and improving electrical safety.

[0046] According to one embodiment of the present application, the clamping mechanism 1 comprises a lower fixed shell 11 and an upper fixed plate 13 installed oppositely, the lower fixed shell 11 is provided with a plurality of clamping pieces 12 facing the upper fixed plate 13, and the power cable is clamped between the upper fixed plate 13 and the clamping pieces 12.

[0047] According to one embodiment of the present application, as shown in Figure 3 The clamping mechanism 1 further comprises a limiting column 16, a plurality of limiting columns 16 are fixedly connected to the inner side of the lower fixed shell 11, and the limiting column 16 is connected with a limiting plate 17, as shown in Figure 5 The top of the limiting plate 17 is fixedly connected with a plurality of sliding columns 18, the top end of the sliding column 18 is fixedly connected with the bottom of the clamping piece 12, and the sliding column 18 is connected with the top surface of the lower fixed shell 11. This embodiment can adjust the position of the clamping piece 12, so as to adjust the position of the power cable as needed.

[0048] According to one embodiment of the present application, one side of the upper fixed plate 13 facing the clamping piece 12 is provided with a flexible pad (auxiliary clamping air bag 14). Clamping the power cable between the flexible pad and the clamping piece 12 can achieve flexible clamping of the power cable, preventing damage to the power cable during clamping; at the same time, it can also clamp and fix power cables of different diameters and quantities, improving the application range of the power cable.

[0049] According to one embodiment of the present application, one side of the clamping piece 12 facing the upper fixed plate 13 is provided with a groove matched with the power cable, which can improve the contact area of the clamping piece 12 and the power cable, and ensure the stability of clamping.

[0050] According to one embodiment of the present application, the lower fixed shell 11 and the upper fixed plate 13 are connected through a dismounting assembly 15; as Figure 4As shown, the disassembly assembly 15 includes disassembly housings 151 arranged at both ends of the lower fixed housing 11 respectively, the top of the disassembly housing 151 is provided with a fixed groove recessed inwardly, both ends of the upper fixed plate 13 are respectively provided with a disassembly plate 153 matched with the fixed groove, and the disassembly plate 153 is fixed in the fixed groove through a locking member. The locking member can adopt a fixed stud assembly 152, the disassembly plate 153 is connected through the fixed stud assembly 152 and the disassembly housing 151; a plurality of fixed holes are formed on both sides of the disassembly housing 151, the diameter of the fixed hole is larger than the diameter of the fixed stud assembly 152, the fixed stud assembly 152 is composed of a stud and nuts at both ends, the distance between the upper fixed plate 13 and the clamping member 12 is different through the fixed holes with different heights, so that the power cable with different diameters can be clamped and fixed. In use, the upper fixed plate 13 is removed by using the disassembly assembly 15, then the clamping member 12 is slid according to the position of the power cable, the power cable is placed on the clamping member 12, and then the upper fixed plate 13 is installed above the power cable in the opposite way, at this time, the auxiliary clamping air bag 14 is inflated to flexibly clamp the power cable.

[0051] According to one embodiment of the present application, the height adjusting mechanism 2 includes a vertically arranged lead screw 25, a sliding block 24 arranged on the lead screw 25 and threadedly matched with the lead screw 25, one end of the lead screw 25 is connected with a driving assembly, the other end of the lead screw 25 is rotatably connected with the top of the vertical part 22 of the clamping mechanism 1, and the sliding block 24 is fixedly connected with the mounting housing 33. The lead screw 25 is provided with a positioning column 23 on each side, and the positioning column 23 is connected with the sliding block 24.

[0052] According to one embodiment of the present application, the angle adjusting device is arranged between the height adjusting mechanism 2 and the support rod 6, the angle adjusting device includes an inclination adjusting mechanism 4 for adjusting the rotation of the U-shaped frame in the vertical direction and a rotation adjusting mechanism 5, the rotation adjusting mechanism 5 is fixedly installed on the top of the support rod 6, and the inclination adjusting mechanism 4 is installed between the rotation adjusting mechanism 5 and the U-shaped frame. The embodiment can adjust the angle in the vertical and horizontal directions respectively.

[0053] According to one embodiment of the present application, the rotation adjusting mechanism 5 includes upper and lower rotating plates 43 and a support plate 51; the top of the support plate 51 is rotatably connected with a plurality of support rolling balls 52 arranged in a ring array, the support rolling balls 52 are slidably connected with the bottom surface of the rotating plate 43, the middle part of the support plate 51 is provided with a reinforcing column 53 protruding upwardly, the reinforcing column 53 is connected with the rotating plate 43, and the top end of the reinforcing column 53 is provided with a positioning assembly;

[0054] As Figure 8As shown, the positioning assembly comprises a positioning housing 54 fixedly installed at the top end of the reinforcing column 53, a plurality of return springs 55 are installed in the inner wall of the top surface of the positioning housing 54, the bottom end of the return spring 55 is connected with the top of a moving plate 56, the bottom of the moving plate 56 is fixedly connected with two symmetrically distributed adjusting columns 57, the top of the moving plate 56 is provided with an adjusting bolt 58, the adjusting bolt 58 is threadedly connected with the top surface of the positioning housing 54; two symmetrically distributed moving holes are formed in the bottom surface of the positioning housing 54, a plurality of anti-rotation holes in annular array are formed in the top surface of the rotating plate 43, the adjusting column 57 is connected with the bottom surface of the positioning housing 54 in penetration through the moving hole, and the adjusting column 57 is connected with the rotating plate 43 through the anti-rotation hole.

[0055] During adjustment, the rotating plate 43 can be rotated to drive the inclination adjusting mechanism 4 and the clamping mechanism 1 to rotate, so as to adjust the angle of the clamping mechanism 1 in the horizontal direction, after the adjustment is completed, the adjusting bolt 58 is rotated to make the supporting ball 52 move downward, thereby driving the moving plate 56 and the adjusting column 57 to move downward, so that the supporting ball 52 moves into the anti-rotation hole formed in the rotating plate 43, at this time, the angle of the rotating plate 43 can be limited, thereby limiting the angle of the clamping mechanism 1, and preventing the clamping mechanism 1 from being mis-rotated.

[0056] According to one embodiment of the present application, as shown in the figure, Figure 7 The inclination adjusting mechanism 4 comprises two angle adjusting plates 41 symmetrically arranged at the bottom of the U-shaped plate 74, the two sides of the angle adjusting plate 41 are rotatably connected with a side plate 42, the side plate 42 is fixedly connected with the top of the rotating plate 43, and the angle adjusting plate 41 and the side plate 42 are connected through a limiting assembly;

[0057] The limiting assembly comprises a bidirectional threaded column 44, threaded sleeves 45 are threadedly connected at both ends of the bidirectional threaded column 44, the threaded sleeve 45 is connected with the L-shaped plate 46 in penetration, and the L-shaped plate 46 is fixedly connected with the side surface of the side plate 42; the angle adjusting plate 41 is provided with a plurality of moving limiting holes in annular array, the side plate 42 is provided with a fixed limiting hole, and the threaded sleeve 45 is connected with the angle adjusting plate 41 and the side plate 42 through the moving limiting hole and the fixed limiting hole respectively.

[0058] During use, the clamping mechanism 1 can be rotated to drive the angle adjusting plate 41 to rotate, thereby limiting the angle of the clamping mechanism 1 in the vertical direction, after the adjustment is completed, the bidirectional threaded column 44 is rotated to drive the two threaded sleeves 45 to move, so that the threaded sleeve 45 connects the angle adjusting plate 41 and the side plate 42, at this time, the rotation of the side plate 42 can be prevented, and the angle of the side plate 42 in the vertical direction is limited.

[0059] According to one embodiment of the present application, as shown in the figure, Figure 9As shown, the support frame further comprises a bottom connecting mechanism 7 arranged on the support rod 6, the connecting mechanism 7 comprises a connecting frame plate 71, the top of the connecting frame plate 71 is fixedly connected with the bottom end of the support rod 6, a plurality of sliding plates 72 are slidingly connected with the inner side of the connecting frame plate 71, one side of the sliding plate 72 is fixedly connected with a connecting column 73, the connecting column 73 is engagedly connected with the side surface of the connecting frame plate 71, a U-shaped plate 74 is fixedly connected with the end of the connecting column 73 away from the sliding plate 72, a center shaft 75 is fixedly connected with the inner side of the U-shaped plate 74, and an adjustable connecting plate 76 is rotatably connected with the surface of the center shaft 75; the sliding plate 72 is fixedly connected with an anti-deviation column 77 on both sides, the connecting frame plate 71 is provided with an anti-deviation groove, and the anti-deviation column 77 is slidingly connected with the connecting frame plate 71 through the anti-deviation groove.

[0060] During installation, according to the different shapes of the fixed body, the adjustable connecting plate 76 is pulled to drive the U-shaped plate 74 to rotate, and then the connecting column 73 and the sliding plate 72 move in the same direction, the position of the adjustable connecting plate 76 is adjusted, the adjustable connecting plate 76 can be rotated through the center shaft 75, the adjustable connecting plate 76 and the connecting frame plate 71 are respectively installed to different positions of the fixed body by using a screw and other tools, and the installation of the support frame is completed.

[0061] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A support frame for preventing damage to power cables under thermal expansion and contraction conditions, characterized in that, The device includes a support rod, a U-shaped frame on the top of the support rod, and a clamping mechanism installed inside the U-shaped frame. The horizontal part of the U-shaped frame is fixedly installed on the top of the support rod. A height adjustment mechanism is provided on each of the two oppositely arranged vertical parts of the U-shaped frame. The clamping mechanism is disposed between the two vertical parts, and both ends of the clamping mechanism are connected to the height adjustment mechanism through elastic components. The elastic component includes a mounting housing fixedly connected to the height adjustment mechanism. A fixed post is installed inside the mounting housing, which is arranged along the direction of the power cable. A mounting plate is provided on the fixed post and slidably connected to the fixed post. A connecting spring is provided between the mounting plate and the two side walls of the mounting housing. A sliding groove is provided on the side of the mounting housing facing the clamping mechanism, which is arranged in the same direction as the fixed post. The mounting plate passes through the sliding groove and is fixedly connected to the clamping mechanism. The mounting plate can slide along the sliding groove.

2. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 1, characterized in that, The clamping mechanism includes a lower fixed housing and an upper fixed plate installed opposite each other. The lower fixed housing is provided with a plurality of clamping members facing the upper fixed plate, and the power cable is clamped between the upper fixed plate and the clamping members.

3. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 2, characterized in that, The clamping mechanism also includes limiting posts. Multiple limiting posts are fixedly connected to the inner side of the lower fixed housing. The limiting posts are connected through the limiting plate. Multiple sliding posts are fixedly connected to the top of the limiting plate. The top of the sliding posts is fixedly connected to the bottom of the clamping member. The sliding posts are connected through the top surface of the lower fixed housing.

4. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 2 or 3, characterized in that, The upper fixing plate has a flexible pad on the side facing the clamping member.

5. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 2 or 3, characterized in that, The lower fixed housing and the upper fixed plate are connected by a disassembly assembly; the disassembly assembly includes disassembly housings respectively disposed at both ends of the lower fixed housing, the top of the disassembly housing is provided with an inwardly recessed fixing groove, and both ends of the upper fixed plate are respectively provided with a disassembly plate that cooperates with the fixing groove, and the disassembly plate is fixed in the fixing groove by a locking member.

6. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 1, characterized in that, The height adjustment mechanism includes a vertically arranged lead screw with a slider threadedly engaged with it. One end of the lead screw is connected to a drive assembly, and the other end is rotatably connected to the top of the vertical part of the clamping mechanism. The slider is fixedly connected to the mounting housing.

7. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 6, characterized in that, An angle adjustment device is provided between the height adjustment mechanism and the support rod. The angle adjustment device includes an angle adjustment mechanism and a rotation adjustment mechanism for adjusting the vertical rotation of the U-shaped frame. The rotation adjustment mechanism is fixedly installed on the top of the support rod, and the angle adjustment mechanism is installed between the rotation adjustment mechanism and the U-shaped frame.

8. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 7, characterized in that, The rotation adjustment mechanism includes a rotating plate and a support plate arranged vertically; the top of the support plate is rotatably connected to a plurality of support balls arranged in a circular array, the support balls are slidably connected to the bottom surface of the rotating plate, the middle of the support plate is provided with an upwardly protruding reinforcing column, the reinforcing column is connected through the rotating plate, and the top of the reinforcing column is provided with a positioning component. The positioning assembly includes a positioning housing fixedly installed at the top of a reinforcing column. Multiple return springs are installed on the inner wall of the top surface of the positioning housing. The bottom ends of the return springs are connected to the top of a movable plate. Two symmetrically distributed adjusting columns are fixedly connected to the bottom of the movable plate. An adjusting bolt is provided on the top of the movable plate, and the adjusting bolt is threadedly connected to the top surface of the positioning housing. Two symmetrically distributed moving holes are opened on the bottom surface of the positioning housing. Multiple anti-rotation holes arranged in a circular array are opened on the top surface of the rotating plate. The adjusting columns are connected to the bottom surface of the positioning housing through the moving holes, and the adjusting columns are connected to the rotating plate through the anti-rotation holes.

9. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 8, characterized in that, The tilt adjustment mechanism includes two symmetrically arranged tilt adjustment plates at the bottom of the U-shaped plate. Each tilt adjustment plate is rotatably connected to a side plate on both sides. The side plates are fixedly connected to the top of the rotating plate. The tilt adjustment plates and the side plates are connected by a limiting component. The limiting component includes a bidirectional threaded post, with threaded sleeves threaded to both ends of the bidirectional threaded post. The threaded sleeves are connected through the L-shaped plate, and the L-shaped plate is fixedly connected to the side of the side plate. The angle adjusting plate has multiple movable limiting holes arranged in a circular array, and the side plate has fixed limiting holes. The threaded sleeves are connected to the angle adjusting plate and the side plate through the movable limiting holes and the fixed limiting holes, respectively.

10. The power cable anti-damage support frame under thermal expansion and contraction conditions according to claim 1, characterized in that, The support frame also includes a bottom connecting mechanism disposed on the support rod. The connecting mechanism includes a connecting frame plate, the top of which is fixedly connected to the bottom end of the support rod. Multiple sliding plates are slidably connected to the inner side of the connecting frame plate. A connecting column is fixedly connected to one side of each sliding plate. The connecting column is engaged with the side of the connecting frame plate. A U-shaped plate is fixedly connected to the end of the connecting column away from the sliding plate. A central shaft is fixedly connected to the inner side of the U-shaped plate. An adjustable connecting plate is rotatably connected to the surface of the central shaft. Anti-deviation columns are fixedly connected to both sides of each sliding plate. The connecting frame plate has anti-deviation grooves. The anti-deviation columns are slidably connected to the connecting frame plate through the anti-deviation grooves.

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