Adjustable high-voltage transmission line lower protection device

Abstract

The utility model relates to the technical field of safety protection, in particular to an adjustable high-voltage transmission line lower protection device which comprises a plurality of stand columns, each stand column comprises a supporting column and an adjusting column, a placing groove is formed in the top end of each supporting column, a hydraulic air cylinder is arranged in each placing groove and fixedly connected in the corresponding placing groove, and the output end of each hydraulic air cylinder is fixedly connected with the corresponding adjusting column. The number of the stand columns is reasonably set according to the actual engineering site, the hydraulic adjustable devices are arranged in the middles of the stand columns, the height of the stand columns can be adjusted, and site construction is facilitated; the distance between constructors and the top high-voltage transmission line can be shortened to the greatest extent, so that the construction flexibility of the protection device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of safety protection, and in particular to an adjustable protective device under high-voltage transmission lines. Background Art

[0002] During the construction of transportation, construction and other projects, areas involving high-voltage transmission lines are areas that require special attention, especially when construction is carried out under high-voltage transmission lines, safety protection measures must be taken. When the distance between the top of the project under the high-voltage transmission line and the high-voltage line does not meet the safety distance specified by the power department, three methods are usually adopted at home and abroad. One is to lift or relocate the high-voltage transmission line, the second is to adjust the elevation of the top of the project to meet the safety distance, and the third is to adjust the location of the project to avoid the range of the high-voltage transmission line. The above three methods will either increase the construction cost and extend the construction period, or adjust the design plan so that the construction goals cannot be fully achieved. Therefore, there is a need for a protective device that can meet the requirements of power specifications, shorten the construction period and save costs. The adjustable protective device makes the construction more flexible and can achieve better economic and social benefits.

[0003] Therefore, the present application provides an adjustable protective device under high-voltage transmission lines. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide an adjustable high-voltage transmission line undercover protective device to solve the problem of low construction flexibility of the protective device.

[0005] The above-mentioned purpose of the present application is achieved through the following technical solutions: an adjustable high-voltage transmission line underground protective device, comprising a plurality of columns, wherein the columns include a supporting column and an adjusting column, a placement groove is provided at the top of the supporting column, a hydraulic cylinder is provided in the placement groove, the hydraulic cylinder is fixedly connected in the placement groove, the output end of the hydraulic cylinder is fixedly connected to the adjusting column, and a protective shed is provided at the end of the adjusting column away from the supporting column.

[0006] By adopting the above technical solution, the number of columns is reasonably set according to the actual situation of the project site. There is a hydraulic adjustable device in the middle of the column, which can adjust the height of the column to facilitate on-site construction. Since construction under high-voltage lines is dangerous, the columns are set to be adjustable to minimize the distance between construction workers and the top high-voltage transmission lines, thereby improving the flexibility of the protection device construction.

[0007] Furthermore, power-assisting rods rotatably connected to the adjusting columns are arranged on both sides of the adjusting columns, and positioning holes are opened on the supporting columns.

[0008] By adopting the above technical solution, when the hydraulic cylinder lifts the adjusting column, the power-assisting rods on both sides will be lifted accordingly. After being lifted to a certain height, the power-assisting rods will stay in the positioning holes. The downward force will cause the power-assisting rods to be stuck in the positioning holes, thereby increasing the supporting force of the support column on the adjusting column.

[0009] Furthermore, the positioning holes are provided in plurality and are evenly arranged on the support column.

[0010] By adopting the above technical solution, considering that the entire protective device needs to be adjusted, multiple positioning holes can ensure that the protective shed can be adjusted to different heights, and the booster rod has a boosting effect on the support column.

[0011] Furthermore, a half circle of thread is provided at the position where the protective shed is connected to the adjusting column, and a half circle of thread with the same radius and connected to each other is provided at the position of the adjusting column close to the protective shed. Positioning bolts are provided in the half circle of thread on the adjusting column and the protective shed, and connecting flanges are fixedly provided on both sides of the head of the positioning bolts, and limiting sliding grooves are provided on the adjusting column and the protective shed.

[0012] By adopting the above technical solution, the half thread on the protective shed and the half thread on the adjusting column are spliced ​​and aligned, and then the positioning bolt is turned into it. The connecting flanges on both sides of the positioning bolt will be rotated into the limiting slide grooves on the adjusting column and the protective shed, thereby fixing the protective shed on the adjusting column.

[0013] Furthermore, hollow grooves for accommodating hydraulic cylinders are provided at both ends of the protective shed, the hydraulic cylinders are fixedly arranged in the hollow grooves, and an extension plate is fixedly arranged on the output end of the hydraulic cylinders.

[0014] By adopting the above technical solution, the length of the protective shed in the direction perpendicular to the high-voltage transmission line must take into account the maximum swing amplitude of the high-voltage transmission line under the action of lateral wind force, and hydraulic adjustable devices are set at both ends of the protective shed, which can be extended and retracted laterally to ensure sufficient length.

[0015] Furthermore, support plates rotatably connected to the protective shed are provided at both ends of the protective shed, a support flange is fixedly provided on one end of the support plate close to the extension plate, and an arc-shaped groove matching the support flange is provided at the bottom of the extension plate.

[0016] By adopting the above technical solution, after the hydraulic cylinder extends the extension plate outward, the support plate is rotated to clamp the support flange on the support plate into the arc-shaped groove below the extension plate, thereby playing a certain supporting role.

[0017] Furthermore, a plurality of arc-shaped grooves are provided and evenly distributed on the extension plate.

[0018] By adopting the above technical solution, considering that the extension lengths of the extension plates are different in different environments, multiple extension plates are provided, which can support the extension plates in any situation.

[0019] Furthermore, the frame material of the protection shed is carbon structural steel.

[0020] By adopting the above technical solution, considering that the protective shed has to withstand wind, rain and snow loads, carbon structural steel is used because it has higher strength and is relatively affordable compared to other materials of equal quality.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. There is a hydraulic adjustable device in the middle of the column, which can adjust the height of the column to facilitate on-site construction. Since construction under high-voltage lines is dangerous, setting the column to be adjustable can minimize the distance between construction workers and the top high-voltage transmission line, thereby improving the flexibility of protective device construction.

[0023] 2. The power-assisting rods on both sides will be raised as the shaft is raised. After being raised to a certain height, the power-assisting rods will stay in the positioning holes. Due to the downward force, the power-assisting rods will be stuck in the positioning holes, thereby increasing the supporting force of the support column on the adjustment column. There are multiple positioning holes that are evenly arranged on the support column. Considering that the entire protective device needs to be adjusted, multiple positioning holes can ensure that the protective shed can be adjusted to different heights, and the power-assisting rods have a power-assisting effect on the support column.

[0024] 3. Set limit slide grooves on the adjusting column and the protective shed, align the half threads on the protective shed and the adjusting column, and then insert the positioning bolts into them. The connecting flanges on both sides of the positioning bolts will rotate into the limit slide grooves on the adjusting column and the protective shed, thereby fixing the protective shed on the adjusting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure in the embodiment;

[0026] Figure 2 is a schematic diagram of the overall structure of another perspective in the embodiment;

[0027] Figure 3 yes Figure 1 A partial enlarged view of middle A;

[0028] Figure 4 is a schematic top view of the whole embodiment;

[0029] Figure 5 is along Figure 4 Section view along line AA.

[0030] Figure numerals: 1. column; 11. support column; 12. adjustment column; 13. positioning hole; 14. power assist rod; 2. protection shed; 21. positioning bolt; 22. connecting flange; 23. limiting slide groove; 24. hollow groove; 25. placement groove; 3. extension plate; 31. support flange; 32. arc-shaped groove; 4. support plate. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] Example, see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 A protective device for adjusting high-voltage transmission lines below the vertical axis includes a plurality of vertical columns 1. The vertical columns 1 include support columns 11 and adjustment columns 12. A placement groove 25 is provided at the top of the support column 11. A hydraulic cylinder is fixedly provided in the placement groove 25. The hydraulic cylinder is fixedly connected to the placement groove 25. The output end of the hydraulic cylinder is fixedly connected to the adjustment column 12. A protective shed 2 is provided at one end of the adjustment column 12 away from the support column 11. The number of vertical columns 1 is reasonably set according to the actual situation of the project site. A hydraulic adjustable device is provided in the middle of the vertical column 1. The height of the vertical column 1 can be adjusted to facilitate on-site construction. Since construction under the high-voltage line is dangerous, the vertical column 1 is set to be adjustable, which can minimize the distance between the construction personnel and the top high-voltage transmission line, thereby improving the flexibility of the protective device during construction.

[0033] In this embodiment, booster rods 14 rotatably connected to the adjusting columns 12 are provided on both sides of the adjusting columns 12, and positioning holes 13 are provided on the support column 11. When the hydraulic cylinder lifts the adjusting column 12, the booster rods 14 on both sides will be lifted accordingly. After being lifted to a certain height, the booster rods 14 stay in the positioning holes 13. Due to the downward force, the booster rods 14 will be stuck in the positioning holes 13, thereby improving the supporting force of the support column 11 on the adjusting column 12. There are multiple positioning holes 13 and they are evenly arranged on the support column 11. Considering that the entire protective device needs to be adjusted, multiple positioning holes 13 can ensure that the protective shed 2 can be adjusted to different heights, and the booster rods 14 have a boosting effect on the support column 11.

[0034] In this embodiment, a half-circle thread is provided at the position where the protective shed 2 is connected to the adjusting column 12, and a half-circle thread with the same radius and connected to each other is provided at the position of the adjusting column 12 close to the protective shed 2. A positioning bolt 21 is provided in the half-circle thread on the adjusting column 12 and the protective shed 2, and connecting flanges 22 are fixedly provided on both sides of the head of the positioning bolt 21. A limiting groove 23 is provided on the adjusting column 12 and the protective shed 2. The half-thread on the protective shed 2 and the half-thread on the adjusting column 12 are spliced ​​and aligned, and then the positioning bolt 21 is turned into it. The connecting flanges 22 on both sides of the positioning bolt 21 will be rotated into the limiting grooves 23 on the adjusting column 12 and the protective shed 2, thereby fixing the protective shed 2 on the adjusting column 12.

[0035] In this embodiment, hollow grooves 24 for placing hydraulic cylinders are opened at both ends of the protective shed 2, and the hydraulic cylinders are fixedly installed in the hollow grooves 24. An extension plate 3 is fixedly installed on the output end of the hydraulic cylinder. The length of the protective shed 2 in the direction perpendicular to the high-voltage transmission line should take into account the maximum swing amplitude of the high-voltage transmission line under the action of lateral wind force. Hydraulic adjustable devices are set at both ends of the protective shed 2, which can be extended and retracted laterally to ensure sufficient length.

[0036] In this embodiment, support plates 4 rotatably connected to the protective shed 2 are provided at both ends of the protective shed 2, and a support flange 31 is fixedly provided on one end of the support plate 4 close to the extension plate 3. An arc-shaped groove 32 matching the support flange 31 is provided at the bottom of the extension plate 3. When the hydraulic cylinder extends the extension plate 3 outward, the support plate 4 is rotated to clamp the support flange 31 on the support plate 4 in the arc-shaped groove 32 under the extension plate 3, thereby exerting a certain supporting force. A plurality of arc-shaped grooves 32 are provided and are evenly distributed on the extension plate 3. Considering that the extension lengths of the extension plate 3 are different in different environments, a plurality of arc-shaped grooves 32 are provided, which can provide support for the extension plate 3 under any circumstances.

[0037] Specific implementation process;

[0038] The number of columns 1 is reasonably set according to the actual situation of the project site. There is a hydraulic adjustable device in the middle of the column 1, which can adjust the height of the column 1 to facilitate on-site construction. Since construction under the high-voltage line is dangerous, the column 1 is set to be adjustable, which can minimize the distance between the construction personnel and the top high-voltage transmission line, thereby improving the flexibility of the construction of the protective device. When the hydraulic cylinder raises the adjusting column 12, the booster rods 14 on both sides will be raised accordingly. After being raised to a certain height, the booster rod 14 stays in the positioning hole 13. Due to the downward force, the booster rod 14 will be stuck in the positioning hole 13, thereby increasing the supporting force of the support column 11 on the adjusting column 12. Considering that the entire protective device needs to be adjusted, multiple positioning holes 13 can ensure that it can be adjusted to different heights, and the booster rod 14 will assist its support column 11.

[0039] Align the half thread on the protective shed 2 and the half thread on the adjusting column 12, and then insert the positioning bolt 21 into it. The connecting flanges 22 on both sides of the positioning bolt 21 will rotate into the limiting slide grooves 23 on the adjusting column 12 and the protective shed 2, thereby fixing the protective shed 2 on the adjusting column 12. The length of the protective shed 2 in the direction perpendicular to the high-voltage transmission line should take into account the maximum swing amplitude of the high-voltage transmission line under the action of lateral wind force. Hydraulic adjustable devices are set at both ends of the protective shed 2, which can be extended and retracted horizontally to ensure sufficient length.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable high-voltage transmission line protection device, characterized in that: The invention comprises a plurality of columns (1), wherein the columns (1) comprise a supporting column (11) and an adjusting column (12), wherein a placement groove (25) is provided at the top of the supporting column (11), wherein a hydraulic cylinder is arranged in the placement groove (25), wherein the hydraulic cylinder is fixedly connected in the placement groove (25), wherein the output end of the hydraulic cylinder is fixedly connected to the adjusting column (12), and a protective shed (2) is arranged at one end of the adjusting column (12) away from the supporting column (11).

2. The adjustable high-voltage transmission line protection device according to claim 1, characterized in that: Power-assisting rods (14) rotatably connected to the adjusting column (12) are arranged on both sides of the adjusting column (12), and a positioning hole (13) is opened on the supporting column (11).

3. The adjustable high-voltage transmission line protection device according to claim 2, characterized in that: A plurality of positioning holes (13) are provided and are evenly arranged on the support column (11).

4. The adjustable high-voltage transmission line protection device according to claim 1, characterized in that: A half-circle thread is provided at the position where the protective shed (2) is connected to the adjustment column (12); a half-circle thread with the same radius and connected to each other is provided at the position of the adjustment column (12) close to the protective shed (2); positioning bolts (21) are provided in the half-circle threads of the adjustment column (12) and the protective shed (2); connecting flanges (22) are fixedly provided on both sides of the head of the positioning bolt (21); and limited sliding grooves (23) are provided on the adjustment column (12) and the protective shed (2).

5. The adjustable high-voltage transmission line protection device according to claim 1, characterized in that: Hollow grooves (24) for accommodating hydraulic cylinders are provided at both ends of the protective shed (2), the hydraulic cylinders are fixedly arranged in the hollow grooves (24), and an extension plate (3) is fixedly arranged on the output end of the hydraulic cylinders.

6. The adjustable high-voltage transmission line protection device according to claim 1, characterized in that: Support plates (4) rotatably connected to the protective shed (2) are provided at both ends of the protective shed (2); a support flange (31) is fixedly provided on one end of the support plate (4) close to the extension plate (3); and an arc-shaped groove (32) matching the support flange (31) is provided at the bottom of the extension plate (3).

7. The adjustable high-voltage transmission line protection device according to claim 6, characterized in that: A plurality of arc-shaped grooves (32) are provided and are evenly distributed on the extension plate (3).

8. The adjustable high-voltage transmission line protection device according to claim 1, characterized in that: The frame material of the protection shed (2) is carbon structural steel.

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