A flat ladder fixing device

Abstract

An embodiment of the present application provides a flat ladder fixing device, including: a U-shaped card slot; a fixing handle rotating shaft, which is arranged at one end of the U-shaped card slot; a pressing plate fixing handle, which is connected to the fixing handle rotating shaft; a pressing plate, which is rotatably connected to the other end of the U-shaped card slot, and a card slot for clamping the pressing plate fixing handle is arranged on the pressing plate; a horizontal flipping adjustment plate, which is connected to the U-shaped card slot, and a handle card slot is arranged on the horizontal flipping adjustment plate; a horizontal flipping fixing handle, which is arranged in the handle card slot of the horizontal flipping adjustment plate; a pitching adjustment handle, which is connected to the horizontal flipping adjustment plate; a fixing base, which is connected to the pitching adjustment handle; a wire tightener, which is arranged at both ends of the fixing base, so as to solve the problem of potential safety hazards for construction workers during construction due to the lack of fixing measures for the current insulating flat ladder.

Description

Technical Field

[0001] This application relates to the technical field of construction tools, and particularly to a fixing device for an insulating ladder. Background Art

[0002] The live working technology for transmission lines has become increasingly mature. When performing live working on transmission lines, it is often necessary to climb to a high place for line maintenance. Therefore, an insulating flat ladder is used. On the one hand, it assists construction workers in climbing, and on the other hand, it can prevent the transmission of current to protect the safety of workers.

[0003] Currently, most transmission lines are arranged in a compact manner and multiple circuits are erected on the same tower. If conventional insulating soft ladders, hanging baskets and other working methods are used to enter the electric field, there are certain limitations. Therefore, using an insulating flat ladder to enter the electric field expands the working methods.

[0004] However, due to the lack of reliable connection and fixing measures between the iron tower and the insulating flat ladder, conventionally, an insulating short rope is used for fixing, which is not very reliable to a certain extent. When personnel enter the electric field along the insulating flat ladder, the insulating flat ladder shakes greatly, causing a psychological burden on the operators and making them inattentive, leaving potential safety hazards, and also having relatively high requirements for the skill level of the operators. Summary of the Invention

[0005] The embodiments of this application provide a fixing device for an insulating ladder to solve the technical problems that the existing insulating flat ladder and the iron tower can only be fixed by a single insulating short rope, resulting in large shaking of the insulating flat ladder, leaving potential safety hazards, and having relatively high requirements for the skill level of the operators.

[0006] This application provides a fixing device for an insulating ladder, including:

[0007] U-shaped card slot;

[0008] Fixed handle rotating shaft, which is arranged at one end of the U-shaped card slot;

[0009] Press plate fixed handle, which is connected to the fixed handle rotating shaft;

[0010] Press plate, which is rotatably connected to the other end of the U-shaped card slot, and a card slot for clamping the press plate fixed handle is arranged on the press plate;

[0011] Horizontal flipping adjustment plate, which is connected to the U-shaped card slot, and a handle card slot is arranged on the horizontal flipping adjustment plate;

[0012] Horizontal flipping fixed handle, which is arranged in the handle card slot of the horizontal flipping adjustment plate;

[0013] Pitch adjustment handle, the pitch adjustment handle is connected to the horizontal flipping adjustment plate;

[0014] Fixed base, the fixed base is connected to the pitch adjustment handle;

[0015] Wire tightener, the wire tightener is arranged at both ends of the fixed base.

[0016] In some embodiments, it further includes:

[0017] Rubber pad, arranged on the inner wall of the U-shaped card slot.

[0018] In some embodiments, the rotation angle of the pressing plate relative to the U-shaped card slot is 0° - 90°.

[0019] In some embodiments, the wire tightener includes:

[0020] Binding strap, the binding strap is connected to both ends of the fixed base;

[0021] Wire tightening device, the wire tightening device is arranged in the middle of the binding strap.

[0022] In some embodiments, the material of the binding strap is high-strength webbing.

[0023] In some embodiments, anti-slip sleeves are arranged at the ends of the pressing plate fixing handle, horizontal flipping fixing handle, and pitch adjustment handle.

[0024] In some embodiments, the material of the flat ladder fixing device is aluminum alloy material.

[0025] In some embodiments, the handle card slot is curved.

[0026] In some embodiments, the horizontal flipping adjustment plate and the pitch adjustment handle are rotatably connected.

[0027] An embodiment of the present application provides a flat ladder fixing device, including: a U-shaped card slot; a fixed handle rotating shaft disposed at one end of the U-shaped card slot; a pressing plate fixed handle connected to the fixed handle rotating shaft; a pressing plate rotatably connected to the other end of the U-shaped card slot, and a card slot for clamping the pressing plate fixed handle is provided on the pressing plate; a horizontal flipping adjustment plate connected to the U-shaped card slot, and a handle card slot is provided on the horizontal flipping adjustment plate; a horizontal flipping fixed handle disposed in the handle card slot of the horizontal flipping adjustment plate; a pitching adjustment handle connected to the horizontal flipping adjustment plate; a fixed base connected to the pitching adjustment handle; a wire tightener disposed at both ends of the fixed base, so as to achieve the effect of firmly fixing the flat ladder on the tower material at the working point, and the inclination angle of the flat ladder in the horizontal and vertical directions can also be adjusted through the flat ladder fixing device to meet the construction requirements, greatly improving the work efficiency and reducing the possibility of potential safety hazards for construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the flat ladder fixing device in the present application at a certain angle;

[0030] Figure 2 It is a schematic structural diagram of the flat ladder fixing device in the present application at another angle.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS:

[0032] 1 - U-shaped card slot; 2 - fixed handle rotating shaft; 21 - pressing plate fixed handle; 3 - pressing plate; 4 - horizontal flipping adjustment plate; 41 - handle card slot; 5 - pitching adjustment handle; 6 - horizontal flipping fixed handle; 7 - fixed base; 8 - wire tightener; 81 - binding strap; 82 - wire tightening device; 9 - anti-slip sleeve; 10 - rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0034] In some technologies, there is a lack of reliable connection and fixing measures between the iron tower and the insulating flat ladder. Conventionally, insulating short ropes are used for fixing, which is not very reliable to a certain extent. When personnel enter the electric field along the insulating flat ladder, the insulating flat ladder shakes greatly, causing a psychological burden on the operators and making them inattentive, leaving a hidden danger for safety work, and having relatively high requirements for the skill level of the operators. To solve this technical problem, this application provides a flat ladder fixing device, and the following will explain the various parts of the flat ladder fixing device:

[0035] From Figure 1 and Figure 2 it can be seen that this application provides a flat ladder fixing device, including:

[0036] U-shaped card slot 1; a receiving space is provided in the U-shaped card slot, and the insulating flat ladder can be placed therein. The length and width of the receiving space are the same as the length and width of the handrail of the insulating flat ladder, so that the insulating flat ladder placed in the receiving space provided in the U-shaped card slot 1 will not shift and can just fix the insulating flat ladder in the flat ladder fixing device. Fixed handle rotating shaft 2, the fixed handle rotating shaft 2 is provided at one end of the U-shaped card slot 1; pressing plate fixed handle 21, the pressing plate fixed handle 21 is connected to the fixed handle rotating shaft 2; the pressing plate fixed handle 21 is connected to the fixed handle rotating shaft 2, and the pressing plate fixed handle 21 can rotate through the fixed handle rotating shaft 2. Pressing plate 3, the pressing plate 3 is rotatably connected to the other end of the U-shaped card slot 1, and a card slot for engaging with the pressing plate fixed handle 21 is provided on the pressing plate 3; the pressing plate 3 is used to fix the insulating flat ladder in the receiving space provided in the U-shaped card slot. The pressing plate fixed handle 21 can rotate through the fixed handle rotating shaft 2 to engage with the card slot provided on the pressing plate 3 for engaging with the pressing plate fixed handle 21, and then the insulating flat ladder is placed in the receiving space provided in the U-shaped card slot to fix the position of the pressing plate 3, thereby fixing the position of the insulating flat ladder. Horizontally flipping adjustment plate 4, the horizontally flipping adjustment plate 4 is connected to the U-shaped card slot 1, and a handle card slot 41 is provided on the horizontally flipping adjustment plate 4; horizontally flipping fixed handle 6, the horizontally flipping fixed handle 6 is provided in the handle card slot 41 of the horizontally flipping adjustment plate 4; the horizontally flipping fixed handle 6 can be controlled to move in the handle card slot 41 provided on the horizontally flipping adjustment plate 4, so as to control the flipping angle of the flat ladder in the horizontal direction to meet the working requirements. Pitching adjustment handle 5, the pitching adjustment handle 5 is connected to the horizontally flipping adjustment plate 4; the pitching adjustment handle 5 is used to adjust the flipping angle of the insulating flat ladder in the vertical direction to achieve the working requirements. Fixed base 7, the fixed base 7 is connected to the pitching adjustment handle 5; the fixed base 7 is used to contact the tower material at the working point and is fixed on the tower material at the working point. Tensioner 8, the tensioner 8 is provided at both ends of the fixed base 7, and the flat ladder fixing device is fixed on the tower material at the working point through the tensioner 8.

[0037] In practical applications, two of the flat ladder fixing devices are fixed on the two handles of the insulating flat ladder. Thus, through the U-shaped card slot 1, the fixed handle rotating shaft 2, the pressing plate fixed handle 21, and the pressing plate 3 of the flat ladder fixing device, the insulating flat ladder can be firmly fixed in the U-shaped card slot 1. The insulating flat ladder will no longer have the possibility of shaking. Compared with fixing the flat ladder and the tower materials at the working point with ropes, it is much more firm and there is no possibility of shaking, greatly improving the safety of construction workers. Nor will there be a situation where construction workers are inattentive and have a mental burden during construction due to the shaking of the insulating flat ladder. The flat ladder fixing device can adjust the horizontal flipping angle of the insulating flat ladder through the horizontal flipping fixed handle 6 to meet the working requirements during the construction process. The flat ladder fixing device can adjust the vertical flipping angle of the insulating flat ladder through the pitching adjustment handle 5 to meet the working requirements during the construction process, thus realizing a flexible construction environment and reducing the construction difficulty of construction workers.

[0038] The flat ladder fixing device provided by this application is flexible to use, easy to carry, and can shorten the working time. It can quickly and effectively fix the insulating flat ladder reliably through this device, saving the time for tying and fixing; effectively reducing the personal risk of operators, making the insulating flat ladder more stable and the personnel entering the electric field more smoothly; reducing the friction loss between the insulating flat ladder and the tower materials and improving the service life; further strengthening the operation reliability of the transmission line, effectively improving the emergency defect elimination response intensity of the transmission line, realizing the pertinence of maintenance for different voltage levels. It not only greatly reduces the manpower input and safety risk of live working, but also can quickly, safely and efficiently complete the live maintenance work, increasing the power supply benefit. Calculated based on the annual power outage time of a single 220 kV transmission network line being 3 days, the additional power supply can be approximately 160 million kWh. Calculated at a net profit of 0.1 yuan per kWh, the direct economic benefit generated is approximately 15.9 million yuan, effectively reducing the line power outage time by 24 hours per time.

[0039] As Figure 2 can be seen, the described flat ladder fixing device further includes: a rubber pad 10, disposed on the inner wall of the U-shaped card slot 1.

[0040] It can be understood that the material of the U-shaped card slot 1 is a metal material. Therefore, under normal working conditions, when the insulating flat ladder is placed in the U-shaped card slot 1, due to the cooperation between the insulating flat ladder and the U-shaped card slot 1, it will be firmly fixed in the U-shaped card slot 1. However, there may be scratches or defects on the handle of the insulating flat ladder. In addition, since the inside of the U-shaped card slot 1 is made of metal, slipping may occur. There may also be a phenomenon that the insulating flat ladder contacts and rubs against the U-shaped card slot 1 during use, resulting in cracks on the inner wall of the U-shaped card slot 1 and thus damage to the U-shaped card slot 1. To avoid this phenomenon, a rubber pad 10 is provided on the inner wall of the U-shaped card slot 1 in this application. Because the rubber material of the rubber pad 10 is soft, when it contacts the insulating flat ladder, it will increase the friction with the insulating flat ladder, thereby protecting the U-shaped card slot 1 from being scratched and damaged by the insulating flat ladder during use. During normal use, the friction between the insulating flat ladder and the inner wall of the U-shaped card slot 1 is also increased, thereby improving the safety of construction; the rubber pad 10 can be replaced at any time. When there are scratches or even damage on its surface due to long-term use of the rubber pad or the anti-deformation ability weakens after long-term use, the rubber pad can be replaced in time. Compared with the damage of the U-shaped card slot 1, replacing the rubber pad can save the use cost and also play a role in preventing the insulating flat ladder and the U-shaped card slot 1 from slipping.

[0041] It can be seen that Figure 2 the rotation angle of the pressing plate 3 relative to the U-shaped card slot 1 is 0°-90°. The pressing plate 3 is connected to the U-shaped card slot 1 through a bearing device. In the non-working state, the pressing plate 3 is fixed by the fixing handle rotating shaft 2 through a card slot provided on the pressing plate 3 and engaging with the pressing plate fixing handle 21. When the flat ladder fixing device needs to be fixed to the tower material at the operation point during construction, the pressing plate fixing handle 21 is loosened and separated from the card slot on the pressing plate 3 used to engage with the pressing plate fixing handle 21 through the fixing handle rotating shaft 2. Then, the U-shaped card slot 1 is rotated 90° so that the insulating flat ladder enters the accommodating space of the U-shaped card slot 1. After rotating the U-shaped card slot 1 back to its original position, the pressing plate fixing handle 21 is engaged with the card slot on the pressing plate 3 used to engage with the pressing plate fixing handle 21, thereby completing the fixing work of the flat ladder fixing device and the insulating flat ladder.

[0042] It can be seen that Figure 1It can be seen that the wire tightener 8 includes: a binding strap 81, and the binding strap 81 is connected to both ends of the fixed base 7; the binding strap 81 is used to fix the fixed base 7 on the tower material at the working point, a wire tightening device 82, and the wire tightening device 82 is arranged in the middle of the binding strap 81. The wire tightening device 82 is used to control the length of the binding strap 81 so as to fix the fixed base 7 on the tower material at the working point, and further complete the installation and fixation of the flat ladder fixing device and the tower material at the working point.

[0043] It can be understood that the wire tightener 8 can complete the fixing work with tower materials at working points with various sizes and shapes. The binding strap 81 can be disassembled or connected at the wire tightening device 82. When it is necessary to fix the fixed base 7 on the tower material at the working point through the wire tightener 8, first separate the binding strap 81 from the wire tightening device 82, then put the separated binding strap 81 on the tower material at the working point, and then put it back into the wire tightening device 82 to complete the fixing. Then use the wire tightening device 82 to adjust the binding strap 81 to a suitable length and firmly fix it on the tower material at the working point.

[0044] In this embodiment, the material of the binding strap 81 is a high-strength woven belt. Since the tower materials at the working points are all made of different shapes and sizes, in order to be suitable for tower materials at working points with various shapes and sizes, the material of the binding strap 81 in this application is set as a high-strength woven belt. Because the high-strength woven belt not only has great firmness in material and is not easy to break, which may cause safety hazards to construction workers during the construction process, but also can be applied to tower materials at different shapes and sizes. Due to the softness of its material, when it contacts the tower material at the working point through its soft material, it will directly cover the surface of the tower material at the working point. Then, through the wire tightening device 82, the binding strap 81 is firmly covered on the surface of the tower material at the working point, so that the flat ladder fixing device does not shift during the construction process, thereby avoiding the possibility of safety hazards during the construction process.

[0045] From Figure 1 and Figure 2 It can be seen that anti-slip sleeves 9 are provided at the ends of the pressing plate fixing handle 21, the horizontal turning fixing handle 6, and the pitching adjustment handle 5.

[0046] It can be understood that the pressing plate fixing handle 21, the horizontal flipping fixing handle 6, and the pitching adjustment handle 5 are all devices for adjusting the position and fixing the flat ladder fixing device during construction. Therefore, during normal construction and use of the flat ladder fixing device, construction workers will stand on the flat ladder to adjust the horizontal flipping fixing handle 6 and the pitching adjustment handle 5 of the flat ladder fixing device, thereby controlling the inclination angles in the horizontal and vertical directions of the flat ladder to meet the construction requirements. Therefore, when adjusting the horizontal flipping fixing handle 6 and the pitching adjustment handle 5, more force will be exerted. Therefore, to facilitate the adjustment by construction workers and prevent slipping between the hands and the horizontal flipping fixing handle 6 and the pitching adjustment handle 5 when adjusting them, the present application is provided with the anti-slip sleeves 9 at the ends of the horizontal flipping fixing handle 6, the pitching adjustment handle 5, and the pressing plate fixing handle 21, so as to prevent slipping when construction workers adjust the horizontal flipping fixing handle 6, the pitching adjustment handle 5, and the pressing plate fixing handle 21. The patterns of the anti-slip sleeves 9 increase the friction between the hands of construction workers and the horizontal flipping fixing handle 6, the pitching adjustment handle 5, and the pressing plate fixing handle 21.

[0047] In this embodiment, the material of the flat ladder fixing device is aluminum alloy. When installing the flat ladder fixing device, the flat ladder needs to be first placed on the tower material at the operation point where construction is required, and then the construction workers set the flat ladder fixing device on the tower material at the operation point and connect it to the flat ladder fixing device. Therefore, to prevent the problem that it is inconvenient for construction workers to carry the flat ladder fixing device or difficult to carry due to the relatively large mass of the flat ladder fixing device, the present application selects aluminum alloy material as most of the manufacturing materials of the flat ladder fixing device. Aluminum alloy material has the characteristics of corrosion resistance, light weight, and strong hardness and is not easy to deform, which is very suitable as the material of the flat ladder fixing device in the present application. Moreover, the volume of the flat ladder fixing device is small, which brings more convenience to construction workers when carrying it.

[0048] It can be seen Figure 2 that the handle slot 41 is curved, and the horizontal flipping fixing handle 6 is arranged in the handle slot 41. The horizontal flipping fixing handle 6 is used to control the inclination angle of the flat ladder fixing device in the horizontal direction. It can be understood that the angle and direction of the curved slot of the handle slot 41 are such that when adjusting the horizontal flipping fixing handle 6, the flipping angle and direction of the flat ladder fixing device are consistent with the adjustment angle of the horizontal flipping fixing handle 6 in the handle slot 41.

[0049] It can be seen Figure 1It can be known that the horizontal flipping adjustment plate 4 is rotationally connected to the pitching adjustment handle 5. The pitching adjustment handle 5 on the horizontal flipping adjustment plate 4 is actually a bearing device. The pitching adjustment handle 5 adjusts the rotation angle and rotation direction of the bearing, and the bearing device is connected to the horizontal flipping adjustment plate 4. By controlling the rotation angle and rotation direction of the pitching adjustment handle 5, the rotation angle and rotation direction of the horizontal flipping adjustment plate 4 are driven, and further, the inclination angle of the flat ladder fixing device in the vertical direction is controlled to meet the construction work requirements.

[0050] The above specific implementation manners have further elaborated on the purpose, technical solutions, and beneficial effects of the embodiments of the present application. It should be understood that the above are only the specific implementation manners of the embodiments of the present application, and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A flat ladder fixing device, characterized in that, it includes: a U-shaped card slot (1); a fixed handle rotating shaft (2), and the fixed handle rotating shaft (2) is arranged at one end of the U-shaped card slot (1); a pressing plate fixed handle (21), and the pressing plate fixed handle (21) is connected to the fixed handle rotating shaft (2); a pressing plate (3), the pressing plate (3) is rotatably connected to the other end of the U-shaped card slot (1), and a card slot for engaging with the pressing plate fixed handle (21) is arranged on the pressing plate (3); a horizontal flipping adjusting plate (4), the horizontal flipping adjusting plate (4) is connected to the U-shaped card slot (1), and a handle card slot (41) is arranged on the horizontal flipping adjusting plate (4); a horizontal flipping fixed handle (6), and the horizontal flipping fixed handle (6) is arranged in the handle card slot (41) of the horizontal flipping adjusting plate (4); a pitching adjusting handle (5), and the pitching adjusting handle (5) is connected to the horizontal flipping adjusting plate (4); a fixed base (7), and the fixed base (7) is connected to the pitching adjusting handle (5); a wire tightener (8), and the wire tightener (8) is arranged at both ends of the fixed base (7).

2. The flat ladder fixing device according to claim 1, characterized in that, it further includes: a rubber pad (10), which is arranged on the inner wall of the U-shaped card slot (1).

3. The flat ladder fixing device according to claim 1, characterized in that, the rotation angle of the pressing plate (3) relative to the U-shaped card slot (1) is 0° - 90°.

4. The flat ladder fixing device according to claim 1, characterized in that, the wire tightener (8) includes: a binding strap (81), and the binding strap (81) is connected to both ends of the fixed base (7); a wire tightening device (82), and the wire tightening device (82) is arranged in the middle of the binding strap (81).

5. The flat ladder fixing device according to claim 4, characterized in that, the material of the binding strap (81) is a high-strength woven belt.

6. The flat ladder fixing device according to claim 1, characterized in that, anti-slip sleeves (9) are arranged at the ends of the pressing plate fixed handle (21), the horizontal flipping fixed handle (6), and the pitching adjusting handle (5).

7. The flat ladder fixing device according to claim 1, characterized in that, the material of the flat ladder fixing device is aluminum alloy material.

8. The flat ladder fixing device according to claim 1, characterized in that, the handle card slot (41) is curved.

9. The flat ladder fixing device according to claim 1, characterized in that, the horizontal flipping adjusting plate (4) and the pitching adjusting handle (5) are rotatably connected.

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