Prestressed pipe pile support welding special ladder for photovoltaic power station

By designing a special ladder for welding prestressed pipe pile supports for photovoltaic power stations, using anti-tilting supports and anti-slip rubber pads to limit the lateral displacement of the ladder, fixing the welding machine with a base support bracket, and using casters for easy movement, the safety and efficiency issues in the welding process were solved, achieving efficient and safe welding operations.

CN224413526UActive Publication Date: 2026-06-26CHINT ANNENG DIGITAL POWER (ZHEJIANG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINT ANNENG DIGITAL POWER (ZHEJIANG) CO LTD
Filing Date
2025-05-09
Publication Date
2026-06-26

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  • Figure CN224413526U_ABST
    Figure CN224413526U_ABST
Patent Text Reader

Abstract

The utility model discloses a photovoltaic power station prestressed pipe pile support welding special ladder relates to component installation equipment technical field, through setting up anti -tilt support at the top of ladder stand, the first branch leg and second branch leg of anti -tilt support and the highest cross bar of ladder stand form the groove, through the groove to the prestressed pipe pile of erecting horizontal support, limit the horizontal displacement of ladder stand, through the left and right displacement of limiting the top of ladder, greatly reduced due to the left and right overturning of ladder and led to the high fall of operating personnel, the occurrence of personal injury accident, improved the safety of operation.
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Description

Technical Field

[0001] This utility model relates to the field of component installation equipment technology, and in particular to a special ladder for welding prestressed pipe pile supports for photovoltaic power plants. Background Technology

[0002] Photovoltaic power plants typically use prestressed pipe piles as the foundation for photovoltaic supports. By reliably welding the base plate of the photovoltaic support column to the pile head of the prestressed pipe pile, a stable photovoltaic module support array can be formed.

[0003] The height of prestressed pipe piles in photovoltaic power stations is generally between 2 and 4 meters above the ground. When welding the bottom surface of the photovoltaic support column and the head of the prestressed pipe pile, the welder usually needs to place the electric welding machine near the pipe pile to be welded, then lean the straight ladder against the pipe pile, and the welder holds the welding torch to weld the pile head.

[0004] Because the ladder leans against the prestressed concrete piles without corresponding anti-slip or anti-tipping measures, there is a risk of workers falling from the ladder during welding operations at heights due to the ladder tipping over. Secondly, the harsh working environment of ground-based power stations means there is a risk of water entering the welding machine due to water accumulation on the ground, potentially causing electric shock to workers. Furthermore, after welding one pile, before welding the next, the ladder and welding machine must be manually lifted or carried to the next welding position, resulting in low efficiency and wasted time and effort.

[0005] Therefore, a straight ladder is needed to improve the safety and reliability of the operation during the welding of prestressed pipe piles. Utility Model Content

[0006] The purpose of this invention is to provide a special ladder for welding prestressed pipe pile supports in photovoltaic power plants, which improves the safety, reliability, and welding efficiency of prestressed pipe pile welding.

[0007] To solve the above-mentioned technical problems, this utility model provides a special ladder for welding prestressed pipe pile supports for photovoltaic power stations, including a ladder body and an anti-tilting bracket set on the top of the ladder body. The anti-tilting bracket includes a first leg and a second leg. The first leg, the second leg and the highest crossbar of the ladder body form a groove, and the groove provides lateral support for the erected prestressed pipe piles, limiting the lateral displacement of the ladder body.

[0008] This also includes anti-slip rubber pads provided on the surfaces of the first leg, the second leg, and the highest crossbar.

[0009] The first leg and the second leg are of equal length, and the length directions of the first leg and the second leg are parallel.

[0010] The first leg and the second leg are welded to the ladder body, or the first leg and the second leg are fixedly hinged to the ladder body. The angle of the first leg and the second leg to the ladder body is fixed by a limiting member after the angle is determined.

[0011] It also includes a transverse reinforcing member disposed between the end of the first leg and the second leg away from the ladder body and the ladder body.

[0012] It also includes a welding machine base support bracket fixed to the bottom crossbar of the ladder body or the longitudinal member of the bottom crossbar of the ladder body. The welding machine base support bracket is used to fix the welding machine. The welding machine base support bracket and the first support leg are located on the same side of the ladder body.

[0013] It also includes an oblique reinforcing member that is obliquely welded or bolted to the main body of the ladder and disposed in the middle or outer end of the base support of the welding machine.

[0014] It also includes movable wheels located at the bottom of the ladder body on the side opposite to the first support leg, the movable wheels being rubber wheels or steel wheels.

[0015] The ladder body is formed by welding galvanized vertical pipes and galvanized horizontal pipes, or it is a stainless steel ladder body.

[0016] It also includes a welding rod cylinder disposed at a predetermined distance from the top of the ladder body on the longitudinal members of the ladder body, the welding rod cylinder being used to hold welding rods.

[0017] The special ladder for welding prestressed pipe pile supports for photovoltaic power plants provided in this embodiment of the invention has the following advantages compared with the prior art:

[0018] The photovoltaic power station prestressed pipe pile support welding ladder provided in this embodiment of the utility model has an anti-tilting bracket set at the top of the ladder body. The first and second legs of the anti-tilting bracket form a groove with the highest crossbar of the ladder body. The groove provides lateral support for the erected prestressed pipe piles, restricting the lateral displacement of the ladder body. By restricting the left and right displacement of the top of the ladder, the occurrence of accidents such as workers falling from heights and personal injury caused by the ladder tilting to the left or right is greatly reduced. This improves the safety of the operation and enhances the safety, reliability, and welding efficiency of the prestressed pipe pile welding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Fig. 1 This is a schematic diagram illustrating the usage structure of an embodiment of the special ladder for welding prestressed pipe pile supports for photovoltaic power plants provided by this utility model;

[0021] Fig. 2 A schematic diagram of a structure of an embodiment of the special ladder for welding prestressed pipe pile supports for photovoltaic power plants provided by this utility model;

[0022] Among them, 1-rubber wheel, 2-welding machine base support bracket, 3-oblique reinforcement, 4-welding machine, 5-galvanized vertical pipe, 6-galvanized horizontal pipe, 7-prestressed pipe pile, 8-welding rod cylinder, 9-welding rod, 10-anti-tilting support, 11-pile head plate, 12-photovoltaic support column, 13-anti-slip rubber pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figs. 1-2 , Fig. 1 This is a schematic diagram illustrating the usage structure of an embodiment of the special ladder for welding prestressed pipe pile supports for photovoltaic power plants provided by this utility model; Fig. 2 This is a schematic diagram of a specific embodiment of the welding ladder for prestressed pipe pile supports in photovoltaic power plants provided by this utility model.

[0025] In one specific embodiment, the special ladder for welding prestressed pipe piles for photovoltaic power stations includes a ladder body and an anti-tilting bracket 10 installed at the top of the ladder body. The anti-tilting bracket 10 includes a first leg and a second leg. The first leg, the second leg, and the highest crossbar of the ladder body form a groove, and the groove provides lateral support for the erected prestressed pipe piles 7, thereby limiting the lateral displacement of the ladder body.

[0026] By installing an anti-tilting bracket 10 at the top of the ladder body, the first and second legs of the anti-tilting bracket 10 form a groove with the highest crossbar of the ladder body. The groove provides lateral support for the erected prestressed pipe piles 7, limiting the lateral displacement of the ladder body. By limiting the left and right displacement of the top of the ladder, the occurrence of accidents such as workers falling from heights and personal injury caused by the ladder tilting to the left or right is greatly reduced, improving the safety of the operation and the safety, reliability and welding efficiency of the prestressed pipe piles 7.

[0027] To further prevent the possibility of falling backward during the climbing process, in one embodiment, the special ladder for welding prestressed pipe pile supports of photovoltaic power stations also includes anti-slip rubber pads 13 provided on the surfaces of the first leg, the second leg, and the highest crossbar.

[0028] By installing anti-slip rubber pads 13 at the crossbar position at the end of the ladder, the friction between the ladder and the prestressed pipe pile 7 is increased, limiting the up-and-down movement of the top of the ladder. This greatly reduces the risk to workers caused by the ladder tilting left or right or forward and backward, and improves the safety and reliability of use.

[0029] This application does not limit the size or shape of the first leg and the second leg. Preferably, the lengths of the first leg and the second leg are equal, and the length directions of the first leg and the second leg are parallel.

[0030] The support leg in this application can be a single support leg or multiple support legs. Moreover, multiple support legs can be separate and independent, or they can be an integrated structure, or other structures.

[0031] This application does not limit the connection relationship between the first leg, the second leg and the ladder body. The first leg and the second leg are welded to the ladder body, or the first leg and the second leg are fixedly hinged to the ladder body. The first leg and the second leg are fixed to the ladder body by a limiting member after the angle is determined.

[0032] That is, the first leg, the second leg and the ladder body can be fixedly connected, such as by welding or bolting, or by snap-fitting or riveting, or they can be movable, such as by hinges. The most suitable angle between the first leg, the second leg and the ladder body can be selected for different heights and different tilt angles. Generally, it is chosen to be perpendicular. After the height and other factors are fixed, the angle between the two is rotated to be perpendicular and then fixed, thereby improving the fixing efficiency.

[0033] In addition to the structures mentioned above, surface structures or fence-like structures can also be used to achieve lateral fixation.

[0034] Since the outriggers may need to withstand large lateral forces, in order to improve reliability and avoid bending, in one embodiment, the special ladder for welding the prestressed pipe pile 7 support of the photovoltaic power station also includes a lateral reinforcement between the first outrigger, the end of the second outrigger away from the ladder body and the ladder body.

[0035] The same specifications are used to set horizontal reinforcements to strengthen the structural strength between the first leg, the second leg and the main body of the ladder, so that even if only one side is subjected to force, it will not bend or be damaged, thus improving the safety of use.

[0036] This application does not impose any limitations on the structure, material, or connection method of the transverse stiffeners, including but not limited to connection methods such as welding and riveting.

[0037] In this application, the installation ground may be dusty, rainy, etc., which may contaminate the welding equipment such as the welding machine 4, so it is necessary to clean it before welding, or even replace the welding equipment.

[0038] To solve the above-mentioned technical problems, in one embodiment, the special ladder for welding prestressed pipe pile supports of photovoltaic power stations further includes a welding machine base support 2 fixed to the bottom crossbar of the ladder body or the longitudinal member of the bottom crossbar of the ladder body. The welding machine base support 2 is used to fix the welding machine 4, and the welding machine base support 2 and the first support leg are located on the same side of the ladder body.

[0039] By setting a welding machine base bracket 2 on the back of the ladder body to fix the welding machine 4, the welding machine 4 does not need to be placed on the ground during use, eliminating concerns about rain and dust, thus improving the safety and reliability of use and avoiding subsequent cleaning of the welding machine 4.

[0040] This application does not limit the shape, structure, and installation method of the welding machine base bracket 2, and connection methods including but not limited to welding, jointing, snap-fitting, bolt fixing, etc. can be adopted.

[0041] Because the welding machine 4 has a high weight, in order to improve the safety of use, in one embodiment, the special ladder for welding prestressed pipe pile supports of photovoltaic power stations also includes an oblique reinforcing member 3 which is disposed in the middle or outer end of the welding machine base support 2 and is obliquely welded or bolted to the ladder body.

[0042] By setting the oblique reinforcing member 3, its structural strength is enhanced, and the safety of use is improved.

[0043] Since this application requires moving the ladder from one installation location to another, it would be difficult to move it by simply carrying it on one's back, which would reduce installation efficiency.

[0044] To address the aforementioned technical efficiency issues, in one embodiment, the special ladder for welding prestressed pipe pile supports in photovoltaic power stations further includes movable wheels located at the bottom of the ladder body on the side opposite to the first support leg. The movable wheels are either rubber wheels or steel wheels.

[0045] By installing casters on the front of the ladder body, the ladder can be set up in the installation position during use. After complete installation, the ladder body can be flipped backward so that the casters contact the ground, allowing it to be moved, thus improving installation efficiency.

[0046] This application does not impose any restrictions on the structure, installation method, material, or size of the casters.

[0047] This application does not limit the material or size of the ladder body. The ladder body is a ladder body formed by welding galvanized vertical pipe 5 and galvanized horizontal pipe 6, or a stainless steel ladder body, or a ladder body made of other materials.

[0048] To further improve welding efficiency, in one embodiment, the special ladder for welding prestressed pipe pile supports of photovoltaic power stations also includes a welding rod cylinder 8, which is disposed at a predetermined distance from the top of the ladder body on the longitudinal members of the ladder body. The welding rod cylinder 8 is used to hold welding rods 9.

[0049] By placing welding rods 9 in a welding rod cylinder 8 at the top of the ladder body, welders no longer need to carry welding rods 9 with them, reducing the possibility of welding rods 9 being damaged, and also reducing the workload of welders.

[0050] This application does not impose any restrictions on the material, structure, size, or installation method of the welding rod cylinder 8.

[0051] In one embodiment, the special ladder for welding prestressed pipe pile supports in photovoltaic power stations includes rubber wheels 1, a welding machine base support 2, an inclined reinforcing member 3 (stiffening iron), galvanized vertical pipes 5, galvanized horizontal pipes 6, welding rod cylinders 8, anti-tilting brackets 10, and anti-slip rubber pads 13. The galvanized vertical pipes 5 and galvanized horizontal pipes 6, after welding, form the main frame of the entire ladder. The welding machine base support 2 is welded to the first step of the ladder at the position of the galvanized horizontal pipe 6 to hold and fix the welding machine 4. The inclined reinforcing member 3 (stiffening iron) is welded to the welding machine base support 2 and the galvanized vertical pipes 5 to increase the load-bearing capacity of the welding machine base support 2. Rubber wheels 1 are installed at appropriate positions at the bottom of the two galvanized vertical pipes 5. The ladder is tilted backward at a certain angle so that the bottom of the galvanized vertical pipes 5 is off the ground and the rubber wheels 1 are on the ground, allowing the ladder and welding machine 4 to be pushed back and forth as a whole.

[0052] After pushing it to a suitable position away from the pipe pile, place the top galvanized horizontal pipe 6 and anti-slip rubber pad 13 against the prestressed pipe pile 7, so that the bottom of the galvanized vertical pipe 5 touches the ground and the rubber wheel 1 is off the ground. The welder can place the welding rod 9 in the welding rod tube 8 and hold the welding handle to weld the pile head plate 11 and the photovoltaic support column 12.

[0053] The components of this welding ladder are all common materials used in the project and can be sourced locally. By integrating the welding machine 4 with the ladder and adding rubber wheels 1 to the ladder, the work efficiency is greatly improved and the handling intensity is reduced. The top of the ladder is equipped with an anti-tilt bracket 10 and an anti-slip rubber pad 13 to ensure the stability of the ladder and prevent falls from heights caused by the ladder tilting to the left or right.

[0054] The aforementioned special ladder for welding prestressed pipe pile supports for ground-mounted photovoltaic power stations is equipped with anti-tilting brackets 10 to limit the left and right displacement of the top of the ladder. At the same time, anti-slip rubber pads 13 are installed at the crossbar position at the end of the ladder to increase the friction between the ladder and the prestressed pipe piles 7, thereby limiting the up and down movement of the top of the ladder. This greatly reduces the occurrence of personal injury accidents caused by workers falling from heights due to the ladder tilting left or right or forward and backward.

[0055] Secondly, the welding machine 4 and the ladder are reliably fixed by the welding machine base bracket 2, so that the welding machine 4 always maintains a certain distance from the ground, avoiding the risk of water ingress, leakage and electric shock due to the welding machine 4 being placed on the ground.

[0056] In addition, rubber wheels 1 are installed at the bottom of the ladder. After welding a certain pipe pile is completed, the ladder only needs to be tilted back at a certain angle so that the bottom of the ladder riser is off the ground and the rubber wheels 1 are on the ground. The ladder and the welding machine 4 can then be pushed back and forth as a whole. Changing the welding position saves time and effort and greatly increases work efficiency.

[0057] In summary, the special ladder for welding prestressed pipe pile supports for photovoltaic power stations provided by this utility model embodiment, by setting an anti-tilting bracket at the top of the ladder body, and forming a groove with the first and second legs of the anti-tilting bracket and the highest crossbar of the ladder body, provides lateral support for the erected prestressed pipe piles through the groove, restricting the lateral displacement of the ladder body. By restricting the left and right displacement of the top of the ladder, the occurrence of accidents such as workers falling from heights and personal injury caused by the ladder tilting to the left or right is greatly reduced, thus improving the safety of the operation and the safety, reliability, and welding efficiency of the prestressed pipe pile welding.

[0058] The above provides a detailed description of the special welding ladder for prestressed pipe pile supports in photovoltaic power stations provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A special ladder for welding prestressed pipe pile supports in photovoltaic power plants, characterized in that, The system includes a ladder body, an anti-tilt bracket mounted on top of the ladder body, the anti-tilt bracket including a first leg and a second leg, the first leg and the second leg forming a groove with the highest crossbar of the ladder body, and providing lateral support for the erected prestressed pipe piles through the groove to limit the lateral displacement of the ladder body, a welding machine base support bracket fixed to the bottom crossbar or the longitudinal members of the bottom crossbar of the ladder body, the welding machine base support bracket for fixing the welding machine, the welding machine base support bracket and the first leg located on the same side of the ladder body, an oblique reinforcing member mounted at the middle or outer end of the welding machine base support bracket and obliquely welded or bolted to the ladder body, and a movable wheel mounted on the bottom of the ladder body away from the first leg, the movable wheel being a rubber wheel or a steel wheel.

2. The special ladder for welding prestressed pipe pile supports for photovoltaic power stations as described in claim 1, characterized in that, It also includes anti-slip rubber pads provided on the surfaces of the first leg, the second leg, and the highest crossbar.

3. The special ladder for welding prestressed pipe pile supports for photovoltaic power stations as described in claim 2, characterized in that, The first leg and the second leg are of equal length, and the length directions of the first leg and the second leg are parallel.

4. The special ladder for welding prestressed pipe pile supports for photovoltaic power stations as described in claim 3, characterized in that, The first leg and the second leg are welded to the ladder body, or the first leg and the second leg are fixedly hinged to the ladder body. After the angle is determined, the first leg and the second leg are fixed to the ladder body by limiting members.

5. The special ladder for welding prestressed pipe pile supports for photovoltaic power stations as described in claim 4, characterized in that, It also includes a transverse reinforcing member disposed between the end of the first leg and the second leg away from the ladder body and the ladder body.

6. The special ladder for welding prestressed pipe pile supports for photovoltaic power stations as described in claim 1, characterized in that, The ladder body is formed by welding galvanized vertical pipes and galvanized horizontal pipes, or it is made of stainless steel.

7. The special ladder for welding prestressed pipe pile supports for photovoltaic power stations as described in claim 1, characterized in that, It also includes a welding rod cylinder disposed at a predetermined distance from the top of the ladder body on the longitudinal members of the ladder body, the welding rod cylinder being used to hold welding rods.