A device for transporting and leveling prefabricated counterweight piers for photovoltaic systems on gentle slope roofs

Abstract

The utility model discloses a kind of transport and leveling pouring device of adaptive gentle slope roof photovoltaic prefabricated counterweight pier, including support main body, counterweight pier bearing structure, positioning fine adjustment cushion block assembly, and mortar pouring mechanism, the convenient transport of device is realized by gyro wheel to replace manual handling, accurate leveling is carried out using positioning fine adjustment cushion block assembly to eliminate local unevenness, cooperate mortar pouring mechanism to avoid maintenance waiting period to fill mortar quickly, to effectively solve the problem of high labor intensity in gentle slope roof construction, leveling accuracy is poor and construction period is extended, with improve construction efficiency, reduce labor intensity, ensure counterweight pier leveling accuracy, shorten construction period, reduce construction cost.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic building construction technology, and in particular to a device for transporting and leveling photovoltaic prefabricated counterweight blocks for gentle slope roofs. Background Technology

[0002] Distributed photovoltaic (PV) systems on concrete roofs are widely used in the building industry as an important form of PV application. Most concrete roofs have a 2% to 5% building slope, forming a gentle slope roof structure. When installing PV supports on such roofs, it is essential to ensure that the top surface of the precast concrete counterweights is level to effectively resist wind loads and maintain system stability. Therefore, the area beneath the counterweights needs to be leveled with cement mortar to create a uniform support surface. Each precast concrete counterweight typically weighs between 250 and 300 kg. Due to their large size and weight, on-site construction relies heavily on manual handling, which is not only labor-intensive but also poses operational safety hazards. The existing construction process typically includes: manually setting out the counterweight positions; erecting formwork and pouring a horizontal mortar layer; waiting for the mortar to cure (generally about 7 days); then having 3 to 4 workers collaboratively move the counterweights to the designated area; performing leveling operations; and finally installing the upper support structure. This series of procedures leads to low construction efficiency, poor coordination between stages, and prolonged overall construction time. Meanwhile, the accuracy of manual leveling is difficult to guarantee, easily leading to localized unevenness, which affects the installation quality and long-term operational reliability of the photovoltaic support system. Furthermore, the overlap of the mortar curing period and manual handling significantly increases project costs, resulting in poor economic efficiency and failing to meet the demands of modern photovoltaic projects for efficient and economical construction. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a device for transporting and leveling prefabricated counterweight blocks for photovoltaic roofs with gentle slopes.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A device for transporting and leveling prefabricated counterweight blocks for photovoltaic systems on gently sloping roofs includes: The supporting body is equipped with rollers at its lower end; The counterweight support structure is connected to the lower end of the support body and is used to place the photovoltaic counterweight. After the counterweight support structure is leveled, the end of the counterweight support structure away from the support body presses against the gently sloping roof. A positioning fine-tuning pad assembly is disposed between the counterweight bearing structure and the gentle slope roof, wherein a mortar grouting space is formed between the counterweight bearing structure, the gentle slope roof and the positioning fine-tuning pad assembly; A mortar injection mechanism is provided on the supporting body, with its lower end extending into the mortar injection space to fill and compact the mortar injection space.

[0005] As described above, a prefabricated counterweight pier transportation and leveling grouting device for photovoltaic roofs with gentle slopes is provided, wherein the counterweight pier bearing structure is also provided with a horizontal module.

[0006] As described above, in the photovoltaic prefabricated counterweight pier transportation and leveling grouting device adapted to gently sloping roofs, the leveling module is a two-way level.

[0007] As described above, a prefabricated counterweight pier transportation and leveling grouting device for photovoltaic roofs with gentle slopes is provided, wherein a cable is also provided between the counterweight pier bearing structure and the supporting body.

[0008] As described above, a prefabricated counterweight pier transportation and leveling grouting device for photovoltaic roofs with gentle slopes is provided at the end of the counterweight pier bearing structure away from the main support body, and one end of the cable is connected to the leveling control part and the other end is connected to the main support body.

[0009] As described above, a transportation and leveling grouting device for prefabricated photovoltaic counterweights for gently sloping roofs includes a grouting mechanism comprising a grouting hose mounted on the supporting body and a pressure grouting device located within the supporting body. One end of the grouting hose is connected to the pressure grouting device, and the other end extends into the grouting space.

[0010] As described above, a prefabricated counterweight pier transportation and leveling grouting device for photovoltaic roofs with gentle slopes is provided. The counterweight pier bearing structure is composed of multiple angle steels, and the distance between the multiple angle steels is set accordingly to the specifications and dimensions of the photovoltaic counterweight pier.

[0011] As described above, the prefabricated counterweight pier transportation and leveling grouting device for photovoltaic roofs with gentle slopes includes a positioning fine-tuning pad assembly composed of rectangular pads and wedge-shaped pads.

[0012] As described above, a prefabricated counterweight pier for transporting and leveling photovoltaic structures on gently sloping roofs is provided with a handrail on the supporting body.

[0013] As described above, a prefabricated counterweight pier transportation and leveling grouting device for photovoltaic roofs with gentle slopes is provided with a braking structure between the handrail and the roller.

[0014] The beneficial effects of this utility model are: the structure of this application is simple, the rollers enable convenient transportation of the device to replace manual handling, the positioning and fine-tuning pad assembly is used for precise leveling to eliminate local unevenness, and the mortar injection mechanism is used to quickly fill mortar to avoid the curing waiting period, thereby effectively solving the problems of high labor intensity, poor leveling accuracy and extended construction period in the construction of gentle slope roofs. It has the advantages of improving construction efficiency, reducing labor intensity, ensuring the leveling accuracy of photovoltaic counterweight piers, shortening the construction period and reducing construction costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a prefabricated counterweight pier transportation and leveling grouting device for photovoltaic roofs adapted to gentle slopes, according to an embodiment of this utility model. Detailed Implementation

[0017] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0018] Please see Figure 1 As shown in the figure, this application embodiment provides a transportation and leveling grouting device for prefabricated photovoltaic counterweights on gently sloping roofs, including: a support body 1 with rollers 10 at its lower end; a counterweight support structure 2 connected to the lower end of the support body 1 for placing and supporting photovoltaic counterweights 100, wherein, after leveling, the end of the counterweight support structure 2 away from the support body 1 presses against the gently sloping roof 101; a positioning fine-tuning pad assembly 3 disposed between the counterweight support structure 2 and the gently sloping roof 101, wherein a mortar grouting space 4 is formed between the counterweight support structure 2, the gently sloping roof 101 and the positioning fine-tuning pad assembly 3; and a mortar grouting mechanism 5 disposed on the support body 1, the lower end of which extends into the mortar grouting space 4 for filling the dense mortar grouting space 4.

[0019] Specifically, the supporting body 1 is designed as the skeleton of the device to support and connect other functional components and provide overall structural stability.

[0020] Rollers 10 are located at the lower end of the support body 1, enabling the entire device to move on the gently sloping roof 101, thereby facilitating the transportation of the photovoltaic counterweight 100.

[0021] The counterweight support structure 2 is connected to the lower end of the support body 1 and is specifically used to place and support the photovoltaic counterweight 100. After leveling, one end of this structure contacts the gently sloping roof 101, providing a support benchmark for subsequent leveling and grouting operations.

[0022] The photovoltaic counterweight pier 100 is a precast concrete component used in distributed photovoltaic systems to resist wind loads, and it typically has a large weight.

[0023] The positioning fine-tuning pad assembly 3 is set between the counterweight bearing structure 2 and the gentle slope roof 101 to make fine adjustments to the height and angle of the counterweight bearing structure 2 in order to achieve horizontal positioning.

[0024] The mortar grouting space 4 is the gap formed between the counterweight bearing structure 2, the gentle slope roof 101 and the positioning fine-tuning pad assembly 3, which is used to accommodate the grouting mortar.

[0025] The mortar injection mechanism 5 is installed on the support body 1 and is used to transport and fill the mortar into the mortar injection space 4 to achieve the compaction and leveling of the bottom of the photovoltaic counterweight pier 100.

[0026] By integrating transportation, positioning, leveling, and grouting functions, this device effectively solves the problems of difficult manual handling, cumbersome traditional leveling procedures, long construction cycles, and low efficiency in the construction of prefabricated counterweights for photovoltaic roofs on gentle slopes. This device facilitates the transportation of heavy counterweights, while simultaneously enabling rapid horizontal positioning of the counterweight base and direct, dense grouting, significantly shortening on-site construction time and improving overall operational efficiency.

[0027] Furthermore, the counterweight bearing structure 2 is also equipped with a horizontal module 6.

[0028] By adding a horizontal module 6 to the counterweight support structure 2, a direct and convenient method for monitoring levelness is provided to construction personnel. During the initial positioning of the counterweight support structure 2 on the gently sloping roof 101, the horizontal module 6 can provide real-time feedback on the tilt status of the counterweight support structure 2. This allows construction personnel to precisely adjust the posture of the counterweight support structure 2 in conjunction with the positioning fine-tuning pad assembly 3, based on the indications of the horizontal module 6. This setup ensures that the counterweight support structure 2 is in the expected level position before mortar grouting, thus providing an accurate leveling benchmark for filling the subsequent mortar grouting space 4 with dense mortar. This effectively solves the problem of insufficient leveling accuracy caused by the lack of level monitoring, significantly improves the overall flatness and construction quality of the photovoltaic counterweight 100 on the gently sloping roof 101, and thus ensures the stability and power generation efficiency of the photovoltaic support.

[0029] Specifically, the level module 6 is a two-way level.

[0030] By specifically defining the aforementioned horizontal module 6 as a bidirectional level, this application enables simultaneous and accurate monitoring of the levelness of the counterweight support structure 2 in two orthogonal directions within space. In the construction environment of a gently sloping roof 101, the roof itself has a building slope, and the placement of the photovoltaic counterweight 100 requires consideration not only of leveling along the slope direction but also of lateral balance. The bidirectional level can simultaneously provide longitudinal and lateral tilt data, allowing operators to fully grasp the tilt state of the counterweight support structure 2, thereby avoiding deviations and blind spots that may result from leveling in a single direction. This design significantly improves the accuracy and efficiency of the leveling process, ensuring that the photovoltaic counterweight 100 can achieve comprehensive level calibration during placement, providing a reliable benchmark for the subsequent stable installation of the photovoltaic bracket, effectively solving the problem of insufficient leveling accuracy on complex slopes, and thus ensuring the long-term stable operation of the entire photovoltaic system.

[0031] Furthermore, a cable 7 is provided between the counterweight bearing structure 2 and the supporting body 1.

[0032] Specifically, by adding a cable 7 between the counterweight support structure 2 and the support body 1, this application effectively solves the aforementioned problems. As a flexible and high-strength connector, the cable 7 provides continuous traction and restraint to the counterweight support structure 2 during transportation and leveling operations on a gently sloping roof. When the device moves on the slope, the cable 7 effectively suppresses sliding or displacement of the counterweight support structure 2 due to gravity or inertia, ensuring it remains within the preset working range. During leveling operations, the cable 7 provides additional structural support and constraint, preventing unnecessary shaking or tilting of the counterweight support structure 2 during adjustment, thus significantly improving the accuracy and stability of leveling. This connection method allows the support body 1 to apply effective mechanical control to the counterweight support structure 2, simplifying the overall structural design and ensuring the stability of the counterweight support structure 2 during non-horizontal operations through physical constraints, providing a solid and reliable foundation for the subsequent precise placement and mortar grouting of the photovoltaic counterweight 100.

[0033] Furthermore, the counterweight bearing structure 2 is provided with a leveling control unit 20 at the end away from the supporting body 1, and one end of the cable 7 is connected to the leveling control unit 20 and the other end is connected to the supporting body 1.

[0034] Specifically, a leveling control unit 20 is installed at the end of the counterweight support structure 2 furthest from the main support body 1, and one end of the cable 7 is connected to the leveling control unit 20, while the other end is connected to the main support body 1, thus constructing an adjustable mechanical support system. When the device is moved and positioned on the gently sloping roof 101, the operator can use the leveling control unit 20 to precisely adjust the tension or effective length of the cable 7. For example, by rotating the screw of the leveling control unit 20 or selecting different connection hole positions, the height of the far end of the counterweight support structure 2 can be changed, thereby compensating for the effects of the roof slope and ensuring that the counterweight support structure 2 remains level after the photovoltaic counterweight 100 is placed. This precise leveling capability effectively solves the problem of difficulty in achieving precise angle control through simple cable connections alone, significantly improving the stability of the counterweight support structure 2 during transportation and leveling. By ensuring the level of the counterweight support structure 2, a stable working platform is provided for subsequent mortar grouting, avoiding problems such as incomplete grouting or uneven installation of the photovoltaic counterweight 100 caused by shaking or tilting of the support structure, thereby ensuring the installation quality and long-term operational reliability of the photovoltaic counterweight 100.

[0035] Furthermore, the mortar injection mechanism 5 includes a grouting hose 51 disposed on the support body 1 and a pressure grouting device disposed inside the support body 1, wherein one end of the grouting hose 51 is connected to the pressure grouting device and the other end extends into the mortar injection space 4.

[0036] Specifically, the pressure grouting device is a device capable of applying pressure to mortar, causing it to be transported according to a predetermined flow rate and pressure. Its core function is to provide a continuous and stable conveying power for the mortar, ensuring that the mortar can be uniformly and densely filled into the narrow mortar grouting space 4. For example, a screw pump type grouting device can be used, which continuously pushes out mortar through the rotation of the screw, featuring stable flow rate and adjustable pressure, and is particularly suitable for mortars with high viscosity. Another implementation method is to use a piston pump type grouting device. This type of grouting device generates high pressure through the reciprocating motion of the piston, and its advantages are high pressure and long delivery distance, making it suitable for applications requiring high-pressure grouting.

[0037] As the core power source, the pressure grouting device provides continuous and stable delivery pressure for the mortar, ensuring sufficient fluidity and penetrability after entering the mortar injection space 4, thereby effectively filling irregular gaps and eliminating voids. The grouting hose 51 acts as a bridge connecting the pressure grouting device and the mortar injection space 4. One end connects to the pressure grouting device, and the other end extends directly into the mortar injection space 4. This design enables directional and targeted delivery of the mortar, avoiding scattering and waste during delivery. Furthermore, the hose's flexibility allows it to adapt to different slopes and space constraints during grouting operations. The coordinated operation of the pressure grouting device and the grouting hose 51 achieves precise control of the mortar injection process, ensuring the construction quality of the leveling layer at the bottom of the counterweight pier bearing structure 2, significantly improving the overall structural stability, and greatly increasing construction efficiency.

[0038] Furthermore, the counterweight support structure 2 is composed of multiple angle steels, and the distance between the multiple angle steels is set accordingly to the specifications and dimensions of the photovoltaic counterweight 100.

[0039] Specifically, the counterweight support structure 2 can precisely adapt to photovoltaic counterweights 100 of different specifications and sizes, effectively solving the problems of unstable bearing, swaying, and uneven loading caused by the diversity of counterweight sizes. This design deeply couples the physical form of the counterweight support structure 2 with the geometric characteristics of the photovoltaic counterweight 100, ensuring that the photovoltaic counterweight 100 can form a tight and uniform contact and support with the angle steel during placement, avoiding uneven stress caused by mismatch of bearing surfaces. This significantly improves the stability and safety of the photovoltaic counterweight 100 during transportation and leveling, reducing construction risks. At the same time, because the photovoltaic counterweight 100 can be placed stably, it ensures the accuracy and density of subsequent mortar grouting, avoiding grouting defects caused by unstable foundations, thereby improving the overall construction quality and efficiency. In addition, this design also enhances the versatility of the device, enabling it to adapt to various models of photovoltaic counterweights 100, reducing equipment investment costs and management complexity.

[0040] Furthermore, the positioning fine-tuning pad assembly 3 is composed of rectangular pads and wedge-shaped pads.

[0041] Specifically, by embodying the positioning fine-tuning pad assembly 3 as a combination of rectangular and wedge-shaped pads, this application achieves precise adjustment of the height of the mortar grouting space 4. The rectangular pad, as a basic support, provides a stable initial bearing height, effectively addressing the overall slope of the gently sloping roof 101. Based on this, the wedge-shaped pad, with its unique inclined structure, can achieve stepless fine-tuning of the support height through relative displacement when used in conjunction with the rectangular pad. This combination allows the device to flexibly address local slope differences and unevenness at different locations on the gently sloping roof 101, ensuring that the counterweight bearing structure 2 obtains a precise and stable support height during leveling. Therefore, the mortar grouting space 4 maintains a suitable and uniform thickness under different construction environments, providing a reliable physical basis for the subsequent uniform filling and compaction of mortar. This effectively solves the problem of a single pad being unable to adapt to complex slope leveling, significantly improving the accuracy and efficiency of leveling and grouting.

[0042] Furthermore, the supporting body 1 is also equipped with handrails 8. Specifically, by installing handrails 8 on the supporting body 1, operators are provided with stable and ergonomic gripping points, significantly improving the operability of the device on gently sloping roofs. Specifically, the handrails 8 on the supporting body 1 allow operators to apply pushing or pulling forces to the device in a more effortless and stable manner, enabling precise control of the device's movement trajectory during transportation and avoiding difficulties in pushing or directional deviations caused by a lack of gripping points. Furthermore, the handrails 8 allow operators to more precisely adjust the device's position during leveling and pre-grouting positioning operations, ensuring that the counterweight bearing structure 2 is accurately aligned with the predetermined construction area. This lays a good positional foundation for the subsequent formation and compaction of the mortar grouting space 4, effectively solving the problems of low construction efficiency and inaccurate positioning caused by insufficient control during manual handling and operation.

[0043] Furthermore, a braking structure is provided between the handrail 8 and the roller 10.

[0044] Specifically, a braking structure is a mechanical device used to stop or slow down the movement of an object. In this application, its main function is to lock the roller 10 to prevent accidental slippage on the gently sloping roof 101. This braking structure can be implemented in various ways. For example, it can be a friction brake, where brake blocks or pads grip or clamp the rim or shaft of the roller 10, thereby generating friction to prevent the roller 10 from rotating. Another implementation is a mechanical locking brake, such as a ratchet and pawl mechanism, where the pawl engages with the ratchet on the roller 10 when braking is required, thereby locking the rotation of the roller 10.

[0045] After the device is moved to the predetermined position, the operator can conveniently operate the braking structure via the handrail 8 to apply braking or locking force to the roller 10, thereby effectively preventing the roller 10 from rotating freely. This design can quickly lock the position of the device, preventing accidental displacement due to the slope of the gently sloping roof 101. Given the interconnected design of the braking structure and the handrail 8, construction workers can easily and quickly trigger the brake while holding the handrail 8 for transport. This linkage design not only improves construction safety but also ensures the stability of the counterweight support structure 2 during leveling and mortar pouring by fixing the device's position. This provides a reliable physical guarantee for the precise placement of the photovoltaic counterweight 100 and the geometric stability of the mortar pouring space 4, effectively solving the problem of accidental sliding that may occur on gently sloping roofs, and significantly improving construction accuracy and operational safety.

[0046] In summary, compared with the cumbersome process in the prior art that requires waiting 7 days for the leveling layer to cure before moving and leveling the counterweight, this embodiment integrates multiple construction stages such as transportation, leveling, and grouting of the photovoltaic counterweight 100 into one device, enabling continuous operation. The auxiliary transportation by the rollers 10 avoids the labor intensity of manually moving heavy objects; the cooperation of the horizontal module 6 and the leveling control unit 20 achieves rapid and accurate leveling on the gently sloping roof 101; and the positioning fine-tuning pad assembly 3 and the mortar grouting mechanism 5 complete the leveling and grouting under the photovoltaic counterweight 100 in one go, without waiting for curing. This integrated construction method significantly improves construction efficiency, shortens the construction cycle, reduces labor costs, and thus enhances overall economic benefits.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for transporting and leveling prefabricated counterweights for photovoltaic roofs with gentle slopes, characterized in that, Including: Support body (1), with rollers (10) at its lower end; The counterweight support structure (2) is connected to the lower end of the support body (1) and is used to place the photovoltaic counterweight (100). After the counterweight support structure (2) is leveled, the end of it away from the support body (1) presses against the gentle slope roof (101). The positioning fine-tuning pad assembly (3) is located between the counterweight bearing structure (2) and the gentle slope roof (101), wherein a mortar grouting space (4) is formed between the counterweight bearing structure (2), the gentle slope roof (101) and the positioning fine-tuning pad assembly (3). The mortar injection mechanism (5) is located on the supporting body (1), and its lower end extends into the mortar injection space (4) to fill and compact the mortar injection space (4).

2. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 1, is characterized in that: The counterweight bearing structure (2) is also provided with a horizontal module (6).

3. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 2, is characterized in that: The level module (6) is a two-way level.

4. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 1, is characterized in that: A cable (7) is also provided between the counterweight bearing structure (2) and the supporting body (1).

5. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 4, is characterized in that: The counterweight bearing structure (2) is further provided with a leveling control unit (20) at one end away from the supporting body (1). One end of the cable (7) is connected to the leveling control unit (20) and the other end is connected to the supporting body (1).

6. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 1, is characterized in that: The mortar injection mechanism (5) includes a grouting hose (51) provided on the support body (1) and a pressure grouting device provided in the support body (1), wherein one end of the grouting hose (51) is connected to the pressure grouting device and the other end extends into the mortar injection space (4).

7. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 1, is characterized in that: The counterweight support structure (2) is composed of multiple angle steels, and the distance between the multiple angle steels is set in accordance with the specifications and dimensions of the photovoltaic counterweight (100).

8. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 1, is characterized in that: The positioning fine-tuning pad assembly (3) consists of rectangular pads and wedge-shaped pads.

9. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 1, is characterized in that: The supporting body (1) is also provided with a handrail (8).

10. The device for transporting and leveling prefabricated counterweights for photovoltaic roofs adapted to gentle slopes, as described in claim 9, is characterized in that: A braking structure is also provided between the handrail (8) and the roller (10).

Images