Modular screw pile connecting frame

Abstract

The utility model relates to the technical field of screw pile construction, in particular to a modular screw pile connecting frame which comprises a main frame, a positioning assembly, a synchronous driving device and an auxiliary leveling mechanism. The main frame adopts a rectangular frame type design and is provided with a sliding rail at the bottom; the positioning assembly comprises a guide sleeve, a limiting plate and a depth scale, and it is guaranteed that the perpendicularity and the depth of the pile body are consistent. The synchronous driving device realizes synchronous press-in of multiple piles through power shunting transmission and a hydraulic unit; the auxiliary leveling mechanism ensures the construction horizontal state by using a leveling screw rod and a horizontal sensor; and the modular design facilitates expansion and transportation. The construction efficiency can be remarkably improved, ground disturbance is reduced, the pile group elevation consistency and perpendicularity are guaranteed, and technical support is provided for rapid pile forming of the desertification grassland.

Description

Technical Field

[0001] This utility model belongs to the field of building foundation engineering technology, specifically a modular spiral pile connection frame. Background Technology

[0002] In the project in Gonghe County, Hainan Prefecture, Qinghai Province, the construction area is located in a severely desertified grassland with low topsoil bearing capacity and a fragile ecosystem. To meet the foundation construction requirements of the photovoltaic support system, a large number of micro-spiral steel piles need to be installed within a short period. However, existing construction methods have limitations in terms of efficiency, quality, and environmental protection. For example, the independent operation of a single micro-spiral steel pile driver is difficult to meet the time requirements for large-scale group pile construction, and it also causes significant ground disturbance, which is detrimental to the protection of the site's ecological environment. In addition, traditional construction methods present challenges in maintaining the consistency of pile top elevation and verticality after multiple piles have been installed, potentially affecting the accuracy and stability of subsequent photovoltaic support system installation. Therefore, how to improve construction efficiency, reduce environmental impact, and ensure the consistency of elevation and verticality after group pile construction while ensuring construction quality has become an urgent problem to be solved. Utility Model Content

[0003] This utility model relates to a modular spiral pile connection frame, aiming to solve the problems of low efficiency, large ground disturbance, and difficulty in ensuring the consistency of elevation and verticality after pile group construction in the large-scale rapid pile construction of micro spiral steel piles in the desertified grassland of Gonghe County, Hainan Prefecture, Qinghai Province. By optimizing the connection structure and construction method, it reduces environmental damage, improves construction efficiency, and meets the accuracy requirements of photovoltaic support foundation installation.

[0004] The technical solution of this utility model is as follows:

[0005] A modular helical pile connecting frame includes a main frame, multiple positioning components, a synchronous drive device, and an auxiliary leveling mechanism. The main frame, serving as the load-bearing core, adopts a rectangular frame design and is welded from high-strength steel, providing sufficient rigidity and stability. Multiple adjustable mounting holes are provided in both the length and width directions of the main frame to accommodate different numbers of helical steel piles. A sliding rail structure is located at the bottom of the main frame, matching the moving platform of the construction machinery to facilitate precise positioning and stable operation of the entire connecting frame.

[0006] The positioning components are evenly distributed inside the main frame. Each set of positioning components includes a guide sleeve, a limiting plate, and a depth gauge. The guide sleeve is fixed to the main frame, and its inner diameter matches the outer diameter of the helical steel pile, ensuring that the helical steel pile remains vertical during the pressing process. The limiting plate is located at the top of the guide sleeve and is used to limit the insertion depth of the helical steel pile, preventing it from being too deep or too shallow. The depth gauge is set along the axial direction of the guide sleeve, and the scale is clearly visible, facilitating real-time observation and recording of the pile's pressing depth by construction personnel. Through this design, the positioning components can effectively control the verticality and pressing depth of individual helical steel piles, thereby ensuring the consistency of elevation after the construction of the pile group.

[0007] The synchronous drive device is the core component of this invention, consisting of a power splitting transmission mechanism and a hydraulic drive unit. The power splitting transmission mechanism transmits power from a single input end to multiple output ends via gear sets and drive shafts, with each output end corresponding to one spiral steel pile driver. The hydraulic drive unit provides stable driving force, ensuring synchronized operation of multiple spiral steel pile drivers during construction. The installation position of the synchronous drive device is precisely calculated to ensure even power distribution across all output ends, avoiding construction deviations caused by uneven power. Furthermore, the synchronous drive device is equipped with overload protection; when abnormal resistance occurs at any output end, the system automatically adjusts the power distribution to prevent equipment damage or construction interruption.

[0008] The auxiliary leveling mechanism is located at the four corners of the main frame, and its main function is to ensure the horizontal state of the connecting frame during construction. The auxiliary leveling mechanism includes leveling screws, support feet, and level sensors. The leveling screws pass through the main frame and are connected to the support feet. By rotating the leveling screws, the height of the support feet can be adjusted, thereby achieving overall leveling of the connecting frame. The level sensors monitor the horizontal state of the main frame in real time and feed the data back to the control system. The control system automatically adjusts the rotation angle of the leveling screws based on the feedback information, ensuring that the connecting frame remains horizontal at all times. This design not only improves construction accuracy but also effectively reduces construction errors caused by uneven ground.

[0009] To further improve construction efficiency, this utility model also incorporates a modular assembly function. The main frame has connection interfaces at both ends, which are fixedly connected to adjacent connecting frames using high-strength bolts to form a larger construction unit. This allows for flexible adjustment of the number and size of connecting frames according to actual construction needs, thus adapting to pile group construction tasks of different scales. Furthermore, the modular design facilitates transportation and installation, reducing construction preparation time and costs.

[0010] The working principle of this utility model is as follows:

[0011] Before construction, the main frame is installed on the mobile platform of the construction machinery via a sliding rail structure, and its leveling state is adjusted using an auxiliary leveling mechanism. Then, multiple spiral steel piles are inserted sequentially into the guide sleeves, and the driving depth of each pile is set using limit plates and depth gauges. After activating the synchronous drive device, the power distribution transmission mechanism evenly distributes the driving force to each spiral steel pile driver, enabling them to begin pile driving operations simultaneously. During construction, a level sensor monitors the leveling state of the main frame in real time and dynamically adjusts it using leveling screws to ensure construction accuracy. After construction is completed, multiple connecting frames can be disassembled or reassembled via connection interfaces to adapt to the needs of the next stage of construction.

[0012] The beneficial effects of this utility model are as follows:

[0013] The simultaneous driving of multiple helical steel piles through the coordination of the main frame and positioning components significantly improves construction efficiency. The positioning components effectively control the verticality and driving depth of the helical steel piles, ensuring consistent elevation after pile group construction and meeting the precision requirements for photovoltaic support foundation installation. The introduction of an auxiliary leveling mechanism reduces construction errors caused by uneven ground, improving construction quality. Modular design allows the connecting frame to flexibly adapt to construction tasks of different scales, enhancing the equipment's versatility and economy. The power distribution transmission mechanism and hydraulic drive unit of the synchronous drive device ensure synchronized operation of multiple helical steel pile drivers, avoiding deviations caused by uneven power in traditional construction methods.

[0014] In summary, this utility model, through its innovative connection structure and construction method, solves the problems of low efficiency, large ground disturbance, and difficulty in ensuring elevation consistency and verticality in existing technologies, providing reliable technical support for large-scale rapid pile construction in desertified grasslands. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 Top view of the main frame;

[0017] Figure 3 This is a magnified view of a portion of the positioning component;

[0018] Figure 4 This is a schematic diagram of the synchronous drive device;

[0019] Figure 5 A schematic diagram of the auxiliary leveling mechanism;

[0020] Figure 6 This is a schematic diagram of the modular combination state.

[0021] Figure Labels

[0022] 1. Main frame; 2. Positioning component; 3. Synchronous drive device; 4. Auxiliary leveling mechanism; 5. Guide sleeve; 6. Limiting plate; 7. Depth gauge; 8. Power splitting transmission mechanism; 9. Hydraulic drive unit; 10. Leveling screw; 11. Support foot; 12. Horizontal sensor; 13. Connection interface; 14. Slide rail structure. Detailed Implementation

[0023] This utility model relates to a modular helical pile connection frame, the structure of which is explained through... Figures 1 to 6 The accompanying drawings provide a detailed description. The specific embodiments of this utility model are described below with reference to the accompanying reference numerals to ensure the completeness and implementability of the technical solution. Firstly, as shown in the accompanying drawings… Figure 1 As shown, the overall structure consists of a main frame 1, a positioning component 2, a synchronous drive device 3, and an auxiliary leveling mechanism 4. The main frame 1 is the core load-bearing component of the entire connecting frame. It adopts a rectangular frame design and is welded from high-strength steel, possessing sufficient rigidity and stability. The main frame 1 has multiple mounting holes in both its length and width directions to accommodate different numbers of helical steel piles. The bottom of the main frame 1 is equipped with a slide rail structure 14, which matches the moving platform of the construction machinery, facilitating precise positioning and stable operation of the connecting frame during construction.

[0024] Further integration Figure 2 As can be seen, the main frame 1 has connection interfaces 13 at both ends, which are fixedly connected to adjacent connecting frames by high-strength bolts, thus forming a larger construction unit. This modular combination function allows the connecting frame to flexibly adapt to pile group construction tasks of different scales and significantly reduces transportation and installation costs. In addition, auxiliary leveling mechanisms 4 are set at the four corners of the main frame 1, the specific structure of which is as follows: Figure 5 As shown. The auxiliary leveling mechanism 4 includes a leveling screw 10, support feet 11, and a level sensor 12. The leveling screw 10 passes through the main frame 1 and is connected to the support feet 11. By rotating the leveling screw 10, the height of the support feet 11 can be adjusted, thereby achieving overall leveling of the connecting frame. The level sensor 12 monitors the level status of the main frame 1 in real time and feeds the data back to the control system. The control system automatically adjusts the rotation angle of the leveling screw 10 based on the feedback information. This design ensures that the connecting frame remains level throughout the construction process, thereby reducing construction errors caused by uneven ground.

[0025] Positioning components 2 are evenly distributed inside the main frame 1, and their specific structure is as follows: Figure 3As shown. Each positioning assembly 2 includes a guide sleeve 5, a limiting plate 6, and a depth gauge 7. The guide sleeve 5 is fixed to the main frame 1, and its inner diameter matches the outer diameter of the spiral steel pile, ensuring that the spiral steel pile remains vertical during the pressing process. The limiting plate 6 is located at the top of the guide sleeve 5 and is used to limit the insertion depth of the spiral steel pile to avoid excessive or shallow insertion. The depth gauge 7 is set along the axial direction of the guide sleeve 5, and the scale is clearly visible, making it easy for construction personnel to observe and record the pressing depth of the pile in real time. Through the above design, the positioning assembly 2 can effectively control the verticality and pressing depth of a single spiral steel pile, thereby ensuring the consistency of elevation after the construction of the pile group.

[0026] Synchronous drive device 3 is one of the core components of this utility model, and its specific structure is as follows: Figure 4 As shown, the synchronous drive unit 3 consists of a power split transmission mechanism 8 and a hydraulic drive unit 9. The power split transmission mechanism 8 transmits power from a single input end to multiple output ends via gear sets and drive shafts, with each output end corresponding to one spiral steel pile driver. The hydraulic drive unit 9 provides stable driving force, ensuring that multiple spiral steel pile drivers operate synchronously during construction. The installation position of the synchronous drive unit 3 is precisely calculated to ensure even power distribution at each output end, avoiding construction deviations caused by uneven power. In addition, the synchronous drive unit 3 is equipped with overload protection; when abnormal resistance occurs at a certain output end, the system automatically adjusts the power distribution to prevent equipment damage or construction interruption.

[0027] In actual construction, the main frame 1 is first installed on the mobile platform of the construction machinery via the slide rail structure 14, and its level is adjusted using the auxiliary leveling mechanism 4. Then, multiple spiral steel piles are sequentially inserted into the guide sleeve 5, and the driving depth of each pile is set using the limiting plate 6 and depth gauge 7. After starting the synchronous drive device 3, the power distribution transmission mechanism 8 evenly distributes the driving force to each spiral steel pile driver, enabling them to begin pile driving operations simultaneously. During construction, the level sensor 12 monitors the level of the main frame 1 in real time and dynamically adjusts it using the leveling screw 10 to ensure construction accuracy. After construction is completed, multiple connecting frames can be disassembled or reassembled via the connection interface 13 to adapt to the needs of the next stage of construction.

[0028] The mating relationship between the main frame 1 and the positioning component 2 is achieved through the fixed installation of the guide sleeve 5. The bottom end of the guide sleeve 5 is fixed to the main frame 1 with bolts, and the top end is height-limited by the limiting plate 6 to ensure that the spiral steel pile does not shift during the pressing process. The depth gauge 7 is installed close to the outer wall of the guide sleeve 5, and the zero mark of the gauge is flush with the lower surface of the limiting plate 6, making it easy for construction personnel to accurately read the pressing depth. The power split transmission mechanism 8 of the synchronous drive device 3 is connected to the drive end of each spiral steel pile driver through the drive shaft, and the hydraulic drive unit 9 provides power support to the transmission mechanism through oil pipelines. The gear set of the power split transmission mechanism 8 adopts a modular design, which facilitates the adjustment of the number and position of the output ends according to different construction needs.

[0029] The leveling screws 10 of the auxiliary leveling mechanism 4 pass through the four corners of the main frame 1 and are connected to the support feet 11 via threaded connections. The bottom surface of the support feet 11 is equipped with anti-slip pads to increase friction with the ground and improve the stability of the connecting frame. A level sensor 12 is installed at the center of the main frame 1, with its sensing probe facing downwards. It can detect the tilt angle of the main frame 1 in real time and transmit the data to the control system. The control system drives the leveling screws 10 via a motor to adjust the height of the support feet 11. Modular assembly is achieved through the connection interface 13, which is fixed to adjacent connecting frames using high-strength bolts. Sealing gaskets are provided at the connection points to prevent rainwater or mud from entering and affecting construction accuracy.

[0030] In practical applications, this invention is particularly suitable for large-scale, rapid pile driving in desertified grasslands of Gonghe County, Hainan Prefecture, Qinghai Province. For example, in photovoltaic support foundation installation projects, due to the complex terrain and poor ground conditions in the construction area, traditional construction methods are difficult to meet the requirements of high efficiency and precision. This invention, through the cooperation of the main frame 1 and the positioning component 2, achieves the synchronous driving of multiple spiral steel piles, significantly improving construction efficiency. The design of the positioning component 2 effectively controls the verticality and driving depth of the spiral steel piles, ensuring the consistency of elevation after pile group construction and meeting the precision requirements of photovoltaic support foundation installation. The introduction of the auxiliary leveling mechanism 4 reduces construction errors caused by uneven ground, improving construction quality. The modular combination function allows the connecting frame to flexibly adapt to construction tasks of different scales, enhancing the equipment's versatility and economy. The power distribution transmission mechanism 8 and hydraulic drive unit 9 of the synchronous drive device 3 ensure the synchronous operation of multiple spiral steel pile drivers, avoiding the deviation problems caused by uneven power in traditional construction methods. To enable those skilled in the art to fully understand and implement this utility model, the following detailed explanation of the specific implementation principle of the modular spiral pile connection frame is provided in conjunction with the photovoltaic support foundation construction scenario in the desertified grassland of Gonghe County, Hainan Prefecture, Qinghai Province.

[0031] In the initial stage of construction, the main frame 1 is first installed on the mobile platform of the construction machinery via a slide rail structure 14. The design of the slide rail structure 14 ensures that the main frame 1 can precisely align with the mobile platform and maintain stable operation during construction. Subsequently, the main frame 1 is leveled using an auxiliary leveling mechanism 4. Specifically, a level sensor 12 monitors the tilt angle of the main frame 1 in real time and transmits the data to the control system. Based on the feedback information, the control system drives the leveling screw 10 to rotate, thereby adjusting the height of the support legs 11 until the main frame 1 reaches a level state. This process effectively reduces construction errors caused by uneven ground and provides a stable reference surface for subsequent operations.

[0032] After leveling the main frame 1, multiple spiral steel piles are sequentially inserted into the guide sleeve 5 of the positioning assembly 2. The inner diameter of the guide sleeve 5 matches the outer diameter of the spiral steel piles, ensuring that the piles remain vertical during the pressing process. The limiting plate 6 is located at the top of the guide sleeve 5 to limit the insertion depth of the spiral steel piles, preventing them from being inserted too deeply or too shallowly. Simultaneously, a depth gauge 7 is set along the axial direction of the guide sleeve 5, with its zero mark flush with the lower surface of the limiting plate 6, facilitating real-time observation and recording of the pressing depth of each steel pile by construction personnel. Through this design, the positioning assembly 2 achieves precise control over the verticality and pressing depth of individual spiral steel piles, thereby ensuring the consistency of elevation after the pile group construction.

[0033] Subsequently, the synchronous drive unit 3 is activated to perform the pile driving operation. The power distribution transmission mechanism 8 evenly distributes the driving force provided by the hydraulic drive unit 9 to multiple output ends via gear sets and drive shafts, with each output end corresponding to one spiral steel pile driver. Because the gear sets of the power distribution transmission mechanism 8 adopt a modular design, the number and position of the output ends can be flexibly adjusted according to actual needs, thus adapting to construction tasks of different scales. During the pile driving process, the hydraulic drive unit 9 provides stable driving force, ensuring that multiple spiral steel pile drivers operate synchronously. When abnormal resistance occurs at a certain output end, the system automatically adjusts the power distribution to avoid equipment damage or construction interruption. This design significantly improves construction efficiency while avoiding the deviation problems caused by uneven power in traditional construction methods.

[0034] During construction, the level sensor 12 continuously monitors the levelness of the main frame 1 and dynamically adjusts it via the leveling screw 10. For example, when the ground conditions in the construction area change, the level sensor 12 detects a change in the tilt angle of the main frame 1 and feeds the data back to the control system. The control system then drives the leveling screw 10 to rotate, adjusting the height of the support legs 11 to restore the levelness of the main frame 1. This real-time adjustment mechanism ensures construction accuracy and reduces the impact of ground disturbance on construction quality.

[0035] After construction is completed, multiple connecting frames can be disassembled or reassembled via connection interface 13 to adapt to the needs of the next stage of construction. Connection interface 13 is fixedly connected to adjacent connecting frames using high-strength bolts, and sealing gaskets are provided at the connection points to prevent rainwater or mud from entering and affecting construction accuracy. This modular combination function not only improves the versatility of the equipment but also significantly reduces transportation and installation costs.

[0036] Through the above steps, this utility model has demonstrated significant technical advantages in its practical application in the desertified grasslands of Gonghe County, Hainan Prefecture, Qinghai Province. The cooperation between the main frame 1 and the positioning component 2 enables the synchronous driving of multiple spiral steel piles, greatly improving construction efficiency. The design of the positioning component 2 effectively controls the verticality and driving depth of the spiral steel piles, meeting the precision requirements for photovoltaic support foundation installation. The introduction of the auxiliary leveling mechanism 4 reduces construction errors caused by uneven ground, improving construction quality. The modular combination function allows the connecting frame to flexibly adapt to construction tasks of different scales, enhancing the economy and applicability of the equipment. The power splitting transmission mechanism 8 and hydraulic drive unit 9 of the synchronous drive device 3 ensure the synchronous operation of multiple spiral steel pile drivers, avoiding deviation problems caused by uneven power in traditional construction methods.

[0037] In summary, this utility model, through optimized structural design and construction process, achieves efficient and precise large-scale helical steel pile construction under complex terrain conditions, providing reliable technical support for photovoltaic support foundation installation.

Claims

1. A modular spiral pile connecting frame, characterized in that, The system includes a main frame (1), multiple positioning components (2), a synchronous drive device (3), and an auxiliary leveling mechanism (4). The main frame (1) is a rectangular frame structure, welded from high-strength steel, with multiple mounting holes in both the length and width directions. A slide rail structure (14) is provided at the bottom. The positioning components (2) are evenly distributed inside the main frame (1). Each positioning component (2) includes a guide sleeve (5), a limiting plate (6), and a depth scale (7). The synchronous drive device (3) includes a power split transmission mechanism (8) and a hydraulic drive unit (9). The auxiliary leveling mechanism (4) is located at the four corners of the main frame (1).

2. The modular helical pile connecting frame according to claim 1, characterized in that, The main frame (1) has connection interfaces (13) at both ends, and the connection interfaces (13) are fixedly connected to the adjacent connecting frame by high-strength bolts.

3. The modular helical pile connecting frame according to claim 1, characterized in that, The guide sleeve (5) is fixed on the main frame (1), and its inner diameter matches the outer diameter of the spiral steel pile. The limiting plate (6) is located at the top of the guide sleeve (5) and is used to limit the insertion depth of the spiral steel pile. The depth scale (7) is set along the axial direction of the guide sleeve (5).

4. The modular helical pile connecting frame according to claim 1, characterized in that, The power split transmission mechanism (8) transmits power from a single input end to multiple output ends through a gear set and a transmission shaft. Each output end corresponds to a spiral steel pile driver. The hydraulic drive unit (9) provides stable driving force.

5. The modular helical pile connecting frame according to claim 1, characterized in that, The auxiliary leveling mechanism (4) includes a leveling screw (10), a support foot (11) and a level sensor (12). The leveling screw (10) passes through the main frame (1) and is connected to the support foot (11). The level sensor (12) monitors the level of the main frame (1) in real time.

6. The modular helical pile connecting frame according to claim 5, characterized in that, The level sensor (12) is installed at the center of the main frame (1), with the sensing probe facing downwards. The leveling screw (10) is connected to the support foot (11) by a threaded connection.

7. The modular helical pile connecting frame according to claim 1, characterized in that, The slide rail structure (14) is matched with the mobile platform of the construction machinery to achieve precise positioning and stable operation of the main frame (1).

8. The modular helical pile connecting frame according to claim 1, characterized in that, The synchronous drive device (3) is equipped with overload protection function. When abnormal resistance occurs at a certain output end, the system automatically adjusts the power distribution.

9. The modular helical pile connecting frame according to claim 2, characterized in that, A sealing gasket is provided at the connection interface (13) to prevent rainwater or mud from entering and affecting the construction accuracy.

10. The modular helical pile connecting frame according to claim 5, characterized in that, The bottom surface of the support foot (11) is provided with an anti-slip pad to increase friction with the ground and improve the stability of the connecting frame.

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