Photovoltaic buttress carrying trolley

Abstract

The invention discloses a photovoltaic buttress carrying trolley which comprises rubber wheels, a frame, a lever mechanism, an operating handle and a lifting hook. The frame is of a rectangular frame structure, the two rubber wheels are installed on the left side and the right side of the bottom of the frame, a sleeve is arranged on the top of the frame and serves as a fixing fulcrum of the lever mechanism, the lever mechanism is arranged in the sleeve in a sleeved mode, the lever mechanism is bent by 30 degrees to form a power arm and a resisting arm, and the length of the power arm is larger than that of the resisting arm. The operating handle is sleeved at the end part of the power arm; and the lifting hook is arranged at the end part of the resisting arm of the lever mechanism. The operation of directly carrying the buttress manually is replaced by a lifting mode based on the lever principle, and the following purposes that the labor cost is reduced, the transfer speed is remarkably increased, and the operation safety is improved can be achieved.

Description

Technical Field

[0001] The invention relates to a photovoltaic pier transport trolley, belonging to the technical field of transport equipment. Background Art

[0002] Currently, the most common method for transporting photovoltaic support piers in concrete roof photovoltaic installation projects is using traditional single-wheeled or two-wheeled carts. This method relies primarily on manual labor. Workers first lift each photovoltaic support pier, weighing approximately 130 kg, from its stack and place it on the cart. They then push the cart to transport the pier to the installation location. Finally, they manually remove the pier from the cart and carry it to the installation site. This method of transport is widely used in photovoltaic projects.

[0003] The traditional method of transporting photovoltaic piers with a single or two-wheeled cart has the following problems:

[0004] High labor costs: Due to the heavy weight of photovoltaic piers, each one requires considerable physical effort to move. Throughout the construction process, the frequent lifting and lowering of the piers can easily fatigue workers, and the extensive manpower required to complete the lifting tasks undoubtedly significantly increases the project's labor costs. For example, a 1MW rooftop photovoltaic project might require more than ten workers dedicated to pier handling, lasting over ten days, resulting in significant labor costs.

[0005] Inefficient handling: Manually handling piers is relatively slow and physically limited, resulting in long handling intervals. From loading the piers onto carts to transporting them to the installation site and unloading them, the entire process is time-consuming. Furthermore, during peak construction periods, when a large number of piers need to be handled, the inefficiency of traditional methods can severely impact construction progress and extend project durations. For example, in some projects with tight deadlines, inefficient pier handling can hinder the subsequent installation of photovoltaic panels, delaying the overall project.

[0006] High operational risks: Lifting objects weighing over 130kg places a heavy strain on workers, easily causing injuries to the waist, shoulders, and other body parts, increasing the risk of injury during construction. Furthermore, if fatigue or improper handling causes the pier to fall during the lifting process, it could not only damage the pier itself but also injure surrounding construction workers, seriously compromising construction safety. According to relevant statistics, heavy lifting accounts for a high proportion of photovoltaic construction accidents, posing significant safety risks and economic losses to construction companies.

[0007] Existing handling methods also have a certain impact on construction quality. During manual handling, due to variations in worker operation, the placement and angle of the piers are difficult to precisely control. This can affect the installation accuracy of PV panels, and in turn, the power generation efficiency and overall performance of the PV system. Summary of the Invention

[0008] The purpose of the present invention is to provide a photovoltaic pier transporting trolley, which replaces the manual operation of directly transporting the piers by a lifting method based on the principle of leverage, and is expected to achieve the following goals: reduce labor costs, significantly increase transportation speed, and improve operational safety.

[0009] The purpose of the present invention is achieved through the following technical solutions:

[0010] A photovoltaic pier transport trolley includes rubber wheels, a frame, a lever mechanism, an operating handle, and a hook;

[0011] The frame has a rectangular frame structure and two rubber wheels, which are installed on the left and right sides of the bottom of the frame. A sleeve is provided on the top of the frame, which serves as a fixed fulcrum for the lever mechanism. The lever mechanism is sleeved in the sleeve. The lever mechanism is bent at a 30-degree angle to form a power arm and a resistance arm. The power arm is longer than the resistance arm. The operating handle is sleeved on the end of the power arm, and the hook is installed on the end of the resistance arm of the lever mechanism.

[0012] The purpose of the present invention can be further achieved by the following technical measures:

[0013] In the aforementioned photovoltaic pier transport trolley, the resistance arm of the lever mechanism is fixed in the sleeve by a fixing bolt, and the length ratio of the power arm and the resistance arm can be adjusted by adjusting the position of the fixing bolt left and right.

[0014] The aforementioned photovoltaic pier transport trolley has a power arm length of 2.6m and a resistance arm length of 0.9m.

[0015] The aforementioned photovoltaic pier transport trolley has an operating handle which is a flexible rubber sleeve with a thickness of 2 mm and an anti-slip pattern on the outside of the rubber sleeve.

[0016] The rubber wheels of the aforementioned photovoltaic pier transport trolley are solid rubber wheels.

[0017] The photovoltaic pier transport trolley of the present invention not only plays an important role in the new installation of photovoltaic power stations, but also can improve the transportation and installation efficiency during the rectification and transformation of photovoltaic power stations. It is not only used to transport concrete piers, but can also play an important role in transporting other materials.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Reduce labor intensity and improve handling efficiency: In the existing technology, workers need to expend great physical strength to lift photovoltaic piers weighing about 130kg from the stacking place and place them on a trolley, and then push them to the installation position and unload them. The labor intensity is extremely high and the efficiency is low. The transport trolley of the present invention uses the principle of leverage to directly lift the concrete pier blocks and move them to the designated location, without the need for workers to move them on and off the trolley. From the perspective of ergonomics and mechanical principles, workers no longer need to directly bear the gravity of the piers to perform handling operations, reducing the risk of muscle fatigue and injury. By eliminating these tedious and laborious links, the handling speed is significantly improved. In actual engineering construction, the same number of 200 photovoltaic piers were selected for the task of transporting a distance of 200m. Using traditional trolleys for transportation, 10 workers took 8 hours to complete the transportation work; using the lever principle of the present invention to transport the trolley, only 5 workers can complete the same amount of transportation in 4 hours, and the transportation efficiency has increased by 4 times. At the same time, the labor intensity of the workers is greatly reduced.

[0020] 2. Improve construction safety: The traditional single-wheel or two-wheeled cart transportation method is prone to piers falling or carts overturning on uneven concrete roofs or construction sites due to the heavy weight of the piers and the reliance on manual labor during the transportation process. This poses a safety hazard to both the construction workers and the piers themselves. The application of the lever principle in the transportation cart of the present invention makes the lifting process more stable and controllable. The design of the lever can better balance the gravity of the piers, and through a reasonable configuration of the lever arm, the piers can remain relatively stable during the lifting process. In experiments simulating uneven roads, the probability of piers falling when transported by traditional carts reached 20% (50 transport simulations were carried out, and 10 piers fell). However, in the 50 simulated transports, the transportation cart of the present invention did not have a single pier fall, and the risk of the cart overturning was almost zero, which greatly improved the safety during the construction process and reduced project delays and economic losses caused by safety accidents.

[0021] 3. Reduced labor costs: Existing methods of transporting piles rely on extensive manual labor, resulting in high labor costs. The transport cart of the present invention reduces labor intensity and the number of workers required. As demonstrated in the experiments above, using the transport cart of the present invention to transport piles increased labor efficiency by four times compared to traditional methods, significantly reducing labor costs and saving project expenses.

[0022] 4. Improve construction quality: In the traditional manual handling process, due to differences in workers' operations, the placement position and angle of the piers are difficult to control accurately, which may affect the installation accuracy of photovoltaic modules, and further affect the power generation efficiency and overall performance of the photovoltaic system. The transport trolley of the present invention is lifted by the lever principle, which can more accurately control the position and angle of the piers. During the lifting process, workers can accurately place the piers to the specified position by adjusting the operation of the lever, avoiding installation errors caused by the instability of manual handling. In the actual installation experiment, 100 photovoltaic piers were installed, and 20% of the piers installed by traditional handling methods had position deviations of more than 10 cm; while for the piers installed using the transport trolley of the present invention, only 5% had position deviations of more than 1 cm, which greatly improved the installation accuracy of photovoltaic modules, helped to improve the power generation efficiency and overall performance of the photovoltaic system, and ensured construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a side view of the photovoltaic pier transport trolley;

[0024] Figure 2 It is a side view of the photovoltaic buttress;

[0025] Figure 3 This is the front view of the photovoltaic pier transport trolley;

[0026] Figure 4 This is a partial enlarged view of the sleeve of the photovoltaic pier transport trolley;

[0027] In the figure: 1- rubber wheel, 2- frame, 3- lever mechanism, 4- operating handle, 5- hook, 6- sleeve, 7- power arm, 8- resistance arm, 9- fixing bolt, 10- photovoltaic support pier, 11- oblong hole of steel column foot. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1-4 As shown, the photovoltaic pier transport trolley of the present invention includes rubber wheels, a frame, a lever mechanism, an operating handle, and a hook; the frame is a rectangular frame structure, and there are two rubber wheels, which are installed on the left and right sides of the bottom of the frame. A sleeve is provided on the top of the frame, which serves as a fixed fulcrum of the lever mechanism. The lever mechanism is sleeved in the sleeve, and the lever mechanism is bent at a 30-degree angle to form a power arm and a resistance arm. The length of the power arm is greater than that of the resistance arm. The operating handle is sleeved on the end of the power arm, and the hook is installed on the end of the resistance arm of the lever mechanism.

[0030] Rubber wheels: Two solid rubber wheels with a diameter of 300mm are used, which are sturdy and durable, have high load-bearing capacity, and do not require inflation and maintenance. They are fixed to the bottom of the frame with bolts and shafts, making it easy to move flexibly on the concrete roof.

[0031] Steel frame: Welded from high-strength steel, the lower portion forms a rectangular frame. A 51mm inner diameter, 4mm thick steel sleeve sits atop the frame, serving as the fixed fulcrum for the lever. The lever is secured to the sleeve with bolts. The frame is strong and stable enough to support the weight of the photovoltaic support.

[0032] The lever is the core component of this transport vehicle, located above the center of the frame. The lever mechanism is a 2mm thick, 50mm diameter galvanized steel pipe. The lever is bent 30 degrees to create a 2.6m long power arm and a 0.9m resistance arm, achieving optimal size ratios.

[0033] Operating handle: A 2mm thick soft rubber sleeve is placed on the end of the power arm. The sleeve is covered with a non-slip pattern, providing workers with a non-slip and comfortable operating handle. The operating handle has a certain degree of elasticity and can provide a certain amount of friction, making it convenient for workers to operate the lever to lift the photovoltaic support pier.

[0034] Steel hook: Attached to the end of the lever mechanism's resistance arm via bolts and screws, the hook securely engages the lifting hole (the oblong hole in the steel column foot) on the photovoltaic pier, ensuring safety during lifting. The hook is made of high-strength solid steel, ensuring safety during lifting.

[0035] Lever Ratio Design: Through precise calculations and experiments, the power arm to resistance arm length ratio was determined to be approximately 3:1. This maximizes labor savings while ensuring safe lifting. Furthermore, the resistance arm of the lever mechanism is secured within the sleeve by a fixing bolt. Adjusting the bolt position left or right adjusts the ratio of the power arm to the resistance arm. Furthermore, the lever material was tested for strength and toughness, and high-strength steel was selected to ensure the lever will not deform or break under heavy loads.

[0036] The working process of using the photovoltaic pier transport trolley is as follows:

[0037] Preparation: The operator pushes the photovoltaic pier transport trolley to the photovoltaic pier stacking area, adjusts the position of the trolley, and aligns the hook of the lifting device with the lifting hole on the photovoltaic pier.

[0038] Lifting the PV pier: Once the hook engages the lifting hole of the PV pier, the operator presses the operating handle to lower the lever's power arm and raise the resistance arm, lifting the PV pier. Because the lever's power arm is longer than the resistance arm, the operator only needs to apply a small amount of force to lift a heavy PV pier, according to the principle of leverage.

[0039] Transporting the pier: After the pier is lifted, the operator pushes the operating handle and uses the running wheels to move the trolley to the installation location of the photovoltaic pier. During this process, the trolley's high overall strength ensures the stability and safety of the pier during the lifting process.

[0040] Lowering the pier: After reaching the installation location, the operator raises the power arm, lowers the resistance arm, and lowers the hook to place the photovoltaic pier steadily on the installation point. Then release the hook to separate the hook from the pier, completing the handling operation.

[0041] In addition to the above embodiments, the present invention may also have other implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. A photovoltaic pier transport vehicle, characterized in that: It includes rubber wheels, a frame, a lever mechanism, an operating handle, and a hook; the frame is a rectangular frame structure, with two rubber wheels, which are installed on the left and right sides of the bottom of the frame. A sleeve is provided on the top of the frame, which serves as a fixed fulcrum of the lever mechanism. The lever mechanism is sleeved in the sleeve. The lever mechanism is bent at a 30-degree angle to form a power arm and a resistance arm. The power arm is longer than the resistance arm. The operating handle is sleeved on the end of the power arm, and the hook is installed on the end of the resistance arm of the lever mechanism.

2. A photovoltaic pier transport vehicle according to claim 1, characterized in that: The resistance arm of the lever mechanism is fixed in the sleeve by a fixing bolt, and the length ratio of the power arm and the resistance arm can be adjusted by adjusting the position of the fixing bolt left and right.

3. The photovoltaic support pier transport vehicle according to claim 1, characterized in that: The power arm is 2.6m long and the resistance arm is 0.9m long.

4. The photovoltaic pier transport vehicle according to claim 1, characterized in that: The operating handle is a flexible rubber sleeve with a thickness of 2 mm, and the outer surface of the rubber sleeve is provided with an anti-slip pattern.

5. The photovoltaic support pier transport vehicle according to claim 1, characterized in that: The rubber wheel is a solid rubber wheel.

Images