A tool for installing and delivering photovoltaic modules at height

Abstract

This invention provides a special tool for high-altitude installation and delivery of photovoltaic modules, belonging to the field of crane technology. The tool includes a frame with a lifting structure for raising the photovoltaic modules. The lifting structure includes an extension post that passes through a mounting hole on the flange of the photovoltaic module's back side and extends into a C-shaped groove. A stop block is provided at the end of the extension post, which engages with the inner wall of the flange after extending into the C-shaped groove. Two or more sets of extension posts and corresponding stop blocks are provided to confine the photovoltaic modules to the lifting structure. This invention utilizes the existing mounting holes and C-shaped grooves on the flange of the photovoltaic module's back side. By setting the extension post and stop block to directly pass through the mounting hole, the stop block engages with the inner wall of the flange to prevent the photovoltaic modules from falling off. The structure is simple, installation and removal are convenient, and the labor intensity of operators can be reduced.

Description

Technical Field

[0001] This invention relates to a special tool for delivering photovoltaic modules at heights, belonging to the field of crane technology. Background Technology

[0002] Photovoltaic modules are important components in photovoltaic power generation projects, typically consisting of solar panels and frames. One type of photovoltaic module in existing technology is... Figure 1 and Figure 2 As shown, the frame 1 has flanges 1-1 around its back side, which form C-shaped grooves 1-2 on the back side of the photovoltaic module. Mounting holes 1-3 are provided on the flanges 1-1. The mounting holes 1-3 are elongated holes used to fix the entire photovoltaic module to the purlins of the photovoltaic bracket.

[0003] Currently, photovoltaic (PV) modules are increasingly widely used in projects such as agricultural-photovoltaic hybrid projects and pastoral-photovoltaic hybrid projects. To achieve the desired power generation effect, PV support structures need to be higher than crops or other ground vegetation, which increases the difficulty of installing these high-support structures. However, the traditional installation method involves ground personnel lifting the PV modules and delivering them to workers at the height. As the height of the support structures increases, this method leads to greater labor intensity and lower safety and reliability.

[0004] To address the aforementioned issues, Chinese utility model patent CN219489471U discloses a photovoltaic module transfer device, comprising a frame (i.e., a chassis), a vertical rod on the frame, a fixed pulley at the top of the vertical rod, and a lifting rope connected to a material frame (i.e., a lifting structure) by passing one end of the rope around the fixed pulley. The material frame has a low guardrail on the outside and a high guardrail on the inside. In use, the photovoltaic module is placed inside the material frame, and the frame is lifted by pulling the other end of the lifting rope, raising the photovoltaic module to a higher position. This device uses a material frame with guardrails on all four sides to lift the photovoltaic module. The high guardrail facilitates the tilting and leaning of the photovoltaic module, while the low guardrail facilitates the removal of the photovoltaic module from the front by workers at height. However, this also makes the structure of the material frame relatively complex, and workers at height need to lift the photovoltaic module to a certain height to remove it from the material frame, which is physically demanding. In addition, to prevent the photovoltaic modules from tilting forward, the frame needs to be set wider to increase the tilt of the photovoltaic modules. Furthermore, a guide structure that guides the vertical rods needs to be set on the frame. All of these factors result in a complex frame structure and a large volume. Summary of the Invention

[0005] The purpose of this invention is to provide a special tool for delivering photovoltaic modules at heights, in order to solve the problems in the prior art that use a frame to place photovoltaic modules, which has guardrails around the frame, requires a wide frame, and has a guide structure, resulting in a complex structure, large size, and the need for workers at heights to expend physical strength to lift the photovoltaic modules out of the frame.

[0006] To achieve the above objectives, the special tool for delivering photovoltaic modules at heights in this invention adopts the following technical solution: A special tool for delivering photovoltaic modules at height includes a frame with a lifting structure for lifting the photovoltaic modules. The lifting structure includes an extension post that passes through a mounting hole on the flange on the back side of the photovoltaic module and extends into a C-shaped groove. The end of the extension post is provided with a stop block, which is used to stop and cooperate with the inner wall of the flange after the extension post extends into the C-shaped groove. Two or more sets of extension posts and matching stop blocks are provided to restrict the photovoltaic modules on the lifting structure.

[0007] The beneficial effects of the above technical solution are as follows: The present invention proposes an improved special tool for high-altitude installation and delivery of photovoltaic modules. The improvement lies in that the lifting structure includes an extension column for passing through the mounting hole on the flange on the back side of the photovoltaic module and extending into the C-shaped groove. The end of the extension column is provided with a stop block, which extends into the C-shaped groove along with the extension column and can then cooperate with the inner wall of the flange to stop it. Furthermore, there are two or more sets of extension columns and matching stop blocks, which can restrict the photovoltaic module on the lifting structure. This invention utilizes the existing mounting holes and C-grooves on the flanged side of the photovoltaic module. By setting an extension post and a stopper that directly pass through the mounting hole, the stopper engages with the inner wall of the flange to prevent the photovoltaic module from falling off, eliminating the need for the complex material frame structure found in existing technologies. Furthermore, since the extension post and stopper only engage with the mounting hole, a large volume is not required. When removing the photovoltaic module, simply offsetting the stopper from the inner wall of the flange releases the blocking effect, allowing the extension post and stopper to exit the mounting hole. Workers at height no longer need to lift the photovoltaic module to a great height, saving physical effort. This solves the problems of existing technologies that use material frames to place photovoltaic modules, which require guardrails around the frame, a wide frame, and a guide structure, resulting in complex structures, large volumes, and the need for workers at height to expend physical effort to lift the photovoltaic module out of the frame.

[0008] Furthermore, the stop block has a long strip structure, and the dimensions of the stop block satisfy the following: the length and width of the stop block are smaller than the length and width of the mounting hole, respectively, so that the stop block can pass through the mounting hole.

[0009] Furthermore, the stop is rotatably mounted on the extension column. During its rotation stroke, the stop has an alignment position that aligns with the mounting hole to pass through the mounting hole, and an offset position that rotates a certain angle after passing through the mounting hole to offset it from the mounting hole.

[0010] Furthermore, the stop block and the extension post are connected by a threaded structure, with a threaded hole on the stop block and an external thread on the extension post.

[0011] Furthermore, the threaded hole is a blind hole, and the depth of the threaded hole is sufficient for the stop to switch between aligned and staggered positions.

[0012] Furthermore, both end faces of the stop block in the length direction are arc-shaped, and both end faces in the width direction are planar.

[0013] Furthermore, the lifting structure includes cross-arranged lifting rods, each lifting rod having an extension post and a matching stop at its end.

[0014] Furthermore, a column is fixed on the frame, and a lever is hinged to the column. The lifting structure is located at one end of the lever, and a control structure for controlling the rotation of the lever is located at the other end of the lever.

[0015] Furthermore, the control structure includes a pull rope connected to the lever, and also includes a drum mounted on the frame and a motor for controlling the rotation of the drum, with the pull rope wound around the drum.

[0016] Furthermore, the lifting structure includes a contact surface for contacting the back of the photovoltaic module, the contact surface being perpendicular to the length extension direction of the lever. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the back structure of a photovoltaic module in the prior art; Figure 2 for Figure 1 A partial cross-sectional view of the photovoltaic module shown; Figure 3 A perspective view of an embodiment of the special tool for delivering photovoltaic modules at a height according to the present invention; Figure 4 for Figure 3 Enlarged view of the end of the lifting rod; Figure 5 This is a usage diagram of an embodiment of the special tool for delivering photovoltaic modules at height according to the present invention; Figure 6 for Figure 5 The diagram shows the cross-sectional view of the stop and the flange in the indicated state.

[0018] In the diagram: 1. Frame; 1-1. Flanged edge; 1-2. C-groove; 1-3. Mounting hole; 2. Frame body; 3. Column; 4. Lever; 5. Pull rope; 6. Motor; 7. Reducer; 8. Battery; 9. Lifting rod; 10. Extension column; 11. Stop block; 12. Drum. Detailed Implementation

[0019] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0020] To address the series of technical problems existing in the use of material frames as lifting structures in the prior art, the basic technical concept of this invention is to utilize the existing mounting holes on the flange on the back side of the photovoltaic module and the existing C-shaped groove on the back side of the photovoltaic module. By setting an extension column and a stop block to directly pass through the mounting hole, the stop block can be used to stop the photovoltaic module from falling off by engaging with the inner wall of the flange. When removing the photovoltaic module, it is only necessary to offset the stop block from the inner wall of the flange to release the stopping effect, so that the extension column and the stop block can be removed from the mounting hole. Workers at heights do not need to lift the photovoltaic module to a great height, which can save physical strength.

[0021] An embodiment of the special tool for delivering photovoltaic modules at high locations (hereinafter referred to as the special tool) in this invention: like Figure 3 and Figure 5 As shown, the special tool includes a frame 2, which in this embodiment is a vehicle frame with wheels for easy movement of the entire tool. The frame 2 is equipped with a lifting structure for lifting photovoltaic modules. Specifically, a column 3 is fixed to the frame 2, and a lever 4 is hinged to the column 3. The lifting structure is located at one end of the lever 4, and a control structure for controlling the rotation of the lever 4 is located at the other end. Rotation of the lever 4 allows the lifting structure to swing up and down.

[0022] In this embodiment, the upper end of the column 3 is provided with a U-shaped fork groove, and the lever 4 is embedded in the U-shaped fork groove and hinged to the column 3 by a pin. In this embodiment, the power arm of the lever 4 is smaller than the resistance arm, so that the lifting structure can extend beyond the frame 2 by a greater distance to facilitate the arrangement of special tools on the construction site and the connection between the lifting structure and the workers at height.

[0023] In this embodiment, the control structure includes a pull rope 5 connected to the lever 4, a drum 12 mounted on the frame 2, and a motor 6 that controls the rotation of the drum 12. The pull rope 5 is wound around the drum 12. Furthermore, the control structure also includes a reducer 7. The motor 6 drives the reducer 7 via a belt, and the drum 12 is mounted at the output end of the reducer 7. Thus, the output power of the motor 6 is reduced by the reducer 7 before driving the drum 12 to rotate, making it easier to control the degree to which the pull rope 5 pulls or releases the lever 4. In addition, a battery 8 is also mounted on the frame 2 to power the motor 6, enabling the specialized tool to operate independently outdoors.

[0024] The aforementioned lifting structure includes cross-arranged lifting rods 9. This cross arrangement is equivalent to the line connecting the two diagonals of a rectangle, meaning the line connecting the ends of the cross-arranged lifting rods 9 can form a rectangular frame. The long side of the rectangle is horizontal, perfectly matching the shape of the photovoltaic module to be lifted. Simultaneously, the back sides of each lifting rod 9 are coplanar (and their front sides are also coplanar, parallel to each other, with the front side forming a contact surface for contacting the back of the photovoltaic module), and perpendicular to the length extension direction of the lever 4. The lever 4 is fixedly connected to the back side of the point where it intersects with the lifting rods 9.

[0025] Combination Figure 4 and Figure 6 As shown, the lifting structure also includes an extension post 10 for passing through the mounting holes 1-3 on the flange 1-1 on the back side of the photovoltaic module and extending into the C-shaped groove 1-2. The extension post 10 is fixed to the end of the lifting rod 9, and the axis of the extension post 10 is perpendicular to the end face of the lifting rod 9. A stop block 11 is provided at the end of the extension post 10. The stop block 11 is used to stop and cooperate with the inner wall of the flange 1-1 after the extension post 10 extends into the C-shaped groove 1-2. Since each lifting rod 9 is provided with an extension post 10 and a matching stop block 11 at its end, the positions of the four sets of extension posts 10 and stop blocks 11 correspond exactly to the mounting holes 1-3 at the four corners of the flange 1-1, thus the photovoltaic module can be confined on the lifting structure.

[0026] Furthermore, the stop block 11 has an elongated structure, and its dimensions satisfy the following: the length and width of the stop block 11 are smaller than the length and width of the mounting hole 1-3, respectively, so that the stop block 11 can pass through the mounting hole 1-3. In addition, both end faces of the stop block 11 in the length direction are arc-shaped, and both end faces in the width direction are flat, thus perfectly matching the elongated mounting hole 1-3. This allows more solid stop blocks 11 to pass through the mounting hole 1-3, increasing the blocking area on the inner wall of the flange 1-1.

[0027] In this embodiment, the stop block 11 is rotatably mounted on the extension column 10. During its rotation stroke, the stop block 11 has an alignment position that aligns with the mounting hole 1-3 to pass through the mounting hole 1-3, and a misalignment position that rotates a certain angle after passing through the mounting hole 1-3 to offset it from the mounting hole 1-3. By rotating the stop block 11 to offset it from the mounting hole 1-3, preferably by rotating it 90 degrees, the stopping area can be increased, and the flange 1-1 can be prevented from detaching from the stop block 11, thus playing a better limiting role and preventing the photovoltaic module from falling accidentally during the lifting process, thereby improving safety and reliability.

[0028] Furthermore, in this embodiment, the stop block 11 and the extension post 10 are connected by a threaded structure. The stop block 11 is provided with a threaded hole, and the extension post 10 is provided with an external thread. The threaded hole is a blind hole, and the depth of the threaded hole is sufficient for the stop block 11 to switch between the aligned position and the staggered position. The threaded structure is used to realize the rotational installation of the stop block 11. The structure is simple and easy to process and manufacture. In addition, by pre-reserving the rotation amount, the stop block 11 can be pressed against the inner wall of the flange 1-1 after passing through the mounting hole 1-3 and rotating 90 degrees, thereby playing a certain role in fixing the photovoltaic module.

[0029] The working principle of the special tool for delivering photovoltaic modules at high locations in this invention is as follows: In operation, the motor 6 controls the rotation of the drum 12, releasing the pull rope 5 to lower the end of the lever 4 connected to the lifting structure to near the ground. Ground personnel align the four mounting holes 1-3 on the photovoltaic module with the corresponding stops 11 on the lifting structure, ensuring each stop 11 extends through the mounting holes 1-3 into the C-shaped groove 1-2. Then, a person reaches into the C-shaped groove 1-2 and rotates the stop 11 (due to the limited width of the flange 1-1 and sufficient space in the C-shaped groove 1-2, a person can reach in) to position it in a staggered position, thus securing the photovoltaic module on the lifting structure. Then, the motor 6 controls the drum 12 to rotate in the opposite direction, tightening the pull rope 5 to swing the end of the lever 4 connected to the lifting structure upwards, delivering the photovoltaic module to the personnel working at height. The personnel at height first rotate the stop 11 to align it, then remove the photovoltaic module. During the upward swing, the front of the photovoltaic module gradually swings upwards, while the back is supported on the lifting rod 9, ensuring a safe and reliable lifting process and preventing accidental drops of the photovoltaic module.

[0030] In addition, to facilitate the passage of the stop 11 through the mounting holes 1-3, a chamfer can be provided at the edge of the stop 11. Furthermore, to accommodate photovoltaic modules of different sizes, the lifting rod 9 can be made telescopic and adjustable. By adjusting the length of the lifting rod 9, the stop 11 can pass through the mounting holes of different types of photovoltaic modules, thus improving its applicability.

[0031] In other embodiments of installing and delivering photovoltaic modules at height: the contact surface of the lifting structure may not be perpendicular to the length extension direction of the lever, and the included angle may be acute or obtuse.

[0032] In other embodiments of the specialized tool for delivering photovoltaic modules at heights: the control structure may not include a reducer, and the motor directly drives the drum to rotate. In other embodiments, the control structure may not be a motor and drum, but rather a counterweight that can be added or removed. Of course, the control structure may also consist of only a pull rope, which is manually operated to control the rotation of the lever. And to save effort, the lever is preferably designed as a force-saving lever.

[0033] In other embodiments of installing and delivering photovoltaic modules at height: regardless of the form of the control structure, the lever can be a force-saving lever, that is, the effort arm is greater than the resistance arm. Of course, in other embodiments, the effort arm can also be exactly equal to the resistance arm.

[0034] In another embodiment of installing and delivering photovoltaic modules at height: a fixed pulley can be installed at the top of the column, and one end of the hoisting rope can be passed around the fixed pulley and connected to the lifting structure. This form is the same as that in patent document CN219489471U. In other embodiments, provided that the lifting height can be met, hydraulic cylinders, air cylinders, or jacks can be used directly to control the up and down movement of the lifting structure.

[0035] In another embodiment of the installation of a special tool for delivering photovoltaic modules at height: the lifting structure may not be a cross-arranged lifting rod, but may include a lifting plate, in which case the extension column is directly fixed to the surface of the lifting plate.

[0036] In another embodiment of the special tool for delivering photovoltaic modules at a height: when the mounting hole is an elongated hole, both end faces of the stop block in the length direction can also be flat, as long as they can pass through the elongated hole and the length of the stop block is greater than the width of the mounting hole.

[0037] In another embodiment of installing a special tool for delivering photovoltaic modules at a height: the threaded hole can also be a through hole.

[0038] In another embodiment of the special tool for delivering photovoltaic modules at a high altitude: the stop and the extension column can also be in a smooth rotational fit. For example, the stop is provided with a light hole, and the light hole is a blind hole. The stop is sleeved on the outside of the extension column through the light hole to achieve mutual rotational fit with the extension column. In order to limit the position of the stop, a spring steel ball can be installed on the inner wall of the stop and at least two grooves can be provided on the outer surface of the extension column. When the steel ball rotates to the position corresponding to the groove, the steel ball will be embedded in the groove under the action of the spring, thereby positioning the position of the stop.

[0039] In another embodiment of the special tool for delivering photovoltaic modules at a high position: the stop block can also be fixed on the extension column. The stop block cannot be rotated. In this case, by controlling the cross-sectional difference between the stop block and the extension column, the stop block can pass through the mounting hole on the flange. Then, the photovoltaic module is moved downward, which is equivalent to hanging the photovoltaic module on the extension column. The part of the stop block that extends beyond the extension column can be used to stop the photovoltaic module by engaging with the inner wall of the flange. Of course, in this case, it is best if the stop block is a long strip structure. The stop block extends horizontally and the stopping area is slightly larger. Of course, the stop block can also be a square block or a cylindrical block.

[0040] In other embodiments of installing and delivering photovoltaic modules at height: only two sets of extension columns and matching stops may be provided. In this case, the lifting structure may include a lifting plate, which is rectangular, with the extension columns fixed at the middle of the left and right ends of the lifting plate. Alternatively, the lifting structure may include lifting rods arranged in a straight line, with the extension columns fixed at the left and right ends of the lifting rods.

[0041] In another embodiment of the special tool for delivering photovoltaic modules at a height: only three sets of extension columns and matching stops are required. In this case, the lifting structure may include a triangular lifting frame, with the extension columns positioned at the three vertices of the lifting frame. The stops at the ends of two of the extension columns are engaged in the mounting holes on the left and right sides of the photovoltaic module, and the stop at the end of the other extension column is engaged in the mounting hole on the upper side of the photovoltaic module.

[0042] In other embodiments of installing and delivering photovoltaic modules at height: five, six or more sets of insertion posts and matching stops can be set, as long as the number of mounting holes on the back flange of the photovoltaic module is sufficient and their positions correspond to the positions of the insertion posts.

[0043] In other embodiments of installing and delivering photovoltaic modules at heights: the frame may not be a vehicle frame, that is, the frame does not have wheels, and the movement of the frame requires the aid of other equipment or machinery.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A special tool for delivering photovoltaic modules at height, comprising a frame, wherein the frame is provided with a lifting structure for lifting the photovoltaic modules, characterized in that, The lifting structure includes an extension post that passes through a mounting hole on the flange on the back side of the photovoltaic module and extends into a C-shaped groove. A stop block is provided at the end of the extension post, which engages with the inner wall of the flange after the extension post extends into the C-shaped groove. Two or more sets of extension posts and matching stop blocks are provided to confine the photovoltaic module to the lifting structure. The stop block is an elongated structure, and its dimensions satisfy the following: the length and width of the stop block are smaller than the length and width of the mounting hole, respectively, so that the stop block can pass through the mounting hole. The stop block is rotatably mounted on the extension post. During its rotation stroke, the stop block has an alignment position where it aligns with the mounting hole to pass through it, and a misalignment position where it rotates a certain angle after passing through the mounting hole to offset it from the mounting hole. The stop block and the extension post are connected by a threaded structure. The stop block has a threaded hole, and the extension post has an external thread. The threaded hole is a blind hole, and its depth allows the stop block to switch between the alignment position and the misalignment position.

2. The special tool for delivering photovoltaic modules at heights according to claim 1, characterized in that, The lifting structure includes cross-arranged lifting rods, each lifting rod having an extension post and a matching stop at its end; a column is fixed on the frame, and a lever is hinged to the column; the lifting structure is located at one end of the lever, and a control structure for controlling the rotation of the lever is located at the other end of the lever; the back of the lever at the intersection with the lifting rod is fixedly connected.

3. The special tool for delivering photovoltaic modules at heights according to claim 1, characterized in that, The lifting structure includes cross-arranged lifting rods, each lifting rod having an extension post and a matching stop at its end; the back sides of each lifting rod are coplanar, and the front sides are also coplanar, with the front and back sides being parallel, and the front side forming a contact surface for contacting the back of the photovoltaic module.

4. The special tool for delivering photovoltaic modules at heights according to claim 1, characterized in that, A column is fixed on the frame, and a lever is hinged to the column. The lifting structure is set at one end of the lever, and a control structure for controlling the rotation of the lever is set at the other end of the lever; the power arm of the lever is smaller than the resistance arm.

5. The special tool for delivering photovoltaic modules at heights according to any one of claims 1 to 4, characterized in that, The two end faces of the stop block in the length direction and the two end faces in the width direction are both planes.

6. The special tool for delivering photovoltaic modules at heights according to any one of claims 1 to 4, characterized in that, Both end faces of the stop block in the length direction are arc-shaped, and both end faces in the width direction are flat.

7. The special tool for delivering photovoltaic modules at heights according to claim 1, characterized in that, The lifting structure includes cross-arranged lifting rods, each lifting rod having an extension post and a matching stop at its end.

8. The special tool for delivering photovoltaic modules at heights according to claim 1, characterized in that, A column is fixed on the frame, and a lever is hinged to the column. The lifting structure is set at one end of the lever, and a control structure for controlling the rotation of the lever is set at the other end of the lever.

9. The special tool for delivering photovoltaic modules at heights according to claim 8, characterized in that, The control structure includes a pull rope connected to the lever, and also includes a drum mounted on the frame and a motor that controls the rotation of the drum. The pull rope is wound around the drum.

10. The special tool for delivering photovoltaic modules at heights according to claim 8, characterized in that, The lifting structure includes a contact surface for contacting the back of the photovoltaic module, the contact surface being perpendicular to the length extension direction of the lever.

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