A drilling platform leg

Abstract

The utility model provides a kind of drilling platform pile leg, including support pile leg and fixed base sleeve, the top and bottom of the fixed base sleeve are all set with sleeve groove, the fixed base sleeve is set in the top of support pile leg by the sleeve groove of bottom, the top of the fixed base sleeve is inserted with extension splicing pile leg, during the application of this technical solution, by setting integrated connection adjusting structure and mechanical clamping auxiliary support structure, preliminary splicing of pile leg can be quickly completed by fixed base sleeve when using, rotating adjusting hand wheel can drive positioning module synchronous movement, without independent operation multiple groups of components or rely on a large number of screws, still can be through the clamping of card column and card hole, support reinforcing structure supports and enhances the stability of fit, to simplify process, shorten time consumption, reduce intensity, while strengthening connection stability, prevent pile leg deviation skidding, solve the problems of complex operation, time-consuming and laborious, poor stability, easy to loosen failure in prior art pile leg connection.

Description

Technical Field

[0001] This utility model relates to the field of drilling platform technology, and in particular to a drilling platform leg. Background Technology

[0002] In the fields of marine resource development and marine engineering construction, jack-up platforms have become core equipment in marine exploration, oil and gas extraction and offshore construction due to their advantages of adjustable operating height and adaptability to different marine environments. As a key load-bearing component of jack-up platforms, the length of the legs directly determines the platform's operating water depth and lifting height. To meet the operational needs of different marine areas, the legs often need to be lengthened and connected. Therefore, the reliability and convenience of the leg connection structure directly affect the overall operational efficiency and safety performance of the platform. Traditional jack-up platform leg connection methods rely heavily on a large number of screws, bolts, and other fasteners for splicing and fixing. This connection method has obvious drawbacks: First, the installation and removal of screws and bolts must be done one by one, especially in scenarios with large leg dimensions and many connection points. The entire connection process is complex, time-consuming, and labor-intensive, severely reducing the efficiency of leg extension operations and making it difficult to meet the high-efficiency requirements of construction progress in marine engineering. Second, the high salt spray and strong corrosion conditions in the marine environment can easily cause screws and bolts to rust and loosen. Moreover, relying solely on the axial clamping force of the fasteners to achieve the connection lacks the limitation on the radial displacement of the leg. After long-term use, the connection gap is likely to increase and the stability will decrease, thus posing a potential threat to the structural safety of the platform. To address the shortcomings of traditional connection methods, related technical fields have conducted improvement research. For example, Chinese patent CN207193964U discloses a connection structure for the legs of a marine jack-up platform. This structure uses components such as a clamping shell, mounting blocks, a first rotating shaft, a second rotating shaft, and a moving block. A rotating turntable drives the rotating shaft to move the moving block, thereby achieving the clamping operation of the clamping plate on the legs. Its initial design aimed to overcome the limitations of traditional fastener connections, simplify the connection process, and improve connection reliability. However, in practical applications, this patented solution still has significant defects and shortcomings, making it difficult to fully meet the actual needs of marine engineering: First, the structure requires independent operation of the clamping components on both sides, i.e., controlling the clamping action of the clamping plate by adjusting the turntables on both sides separately. During the splicing and installation of the legs, the clamping force and position on both sides need to be repeatedly calibrated, making the operation process cumbersome and inconvenient. This is especially true for the connection of large components such as the legs of a jack-up platform, which not only increases the difficulty of connection but also... This not only increases the workload of operators but also prolongs the overall time required for leg installation, making efficient and rapid connection operations impossible. Secondly, the structure lacks a splicing and snap-fit ​​structure compatible with the leg body, relying solely on the planar clamping force of the clamping plate to fix the leg. This fails to create a mechanical interlocking relationship between the clamping plate and the leg surface, resulting in insufficient fit between the connection structure and the leg. This makes it impossible to effectively limit the relative displacement of the leg in the circumferential and axial directions. During offshore platform operations, the leg needs to withstand complex forces such as wave loads, wind loads, and the platform's own weight. The simple clamping and fixing method is prone to slippage of the clamping plate or displacement of the leg due to concentrated force, resulting in poor overall connection stability and difficulty in ensuring structural reliability during long-term use. It is evident that the existing technical solution still has room for improvement, and a more efficient and stable leg connection structure needs to be designed to solve the above problems. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a drilling platform leg to more accurately resolve the problems described above.

[0004] This utility model is achieved through the following technical solution: This utility model proposes a drilling platform leg, including a supporting leg and a fixed base sleeve. The fixed base sleeve has a sleeve groove at both the top and bottom. The fixed base sleeve is sleeved onto the top of the supporting leg through the sleeve groove at the bottom. An extended splicing leg is inserted into the top of the fixed base sleeve. An adjustment module is fixedly installed on one side of the fixed base sleeve. A positioning module is fixedly installed on both moving ends of the adjustment module. The positioning module is engaged with the supporting leg and the end of the extended splicing leg near the fixed base sleeve. The positioning module includes a connecting arm and a locking hole. The connecting arm is fixedly connected to the outside of the moving end of the adjustment module. A positioning side plate is fixedly installed at the outer end of the connecting arm. Locking pins are fixedly connected at equal intervals on the inner side of the positioning side plate. The locking holes are opened at equal intervals on the top outer surface of the supporting pile leg and the outer surfaces of both ends of the extended splicing pile leg. The ends of the locking pins are inserted into the locking holes.

[0005] Furthermore, the adjustment module includes a guide rail, which is fixedly installed on one side of the fixed base sleeve. A lead screw is rotatably connected to the inner side of the guide rail, and sliders are threaded to both ends of the lead screw. The sliders are slidably connected to the inside of the guide rail. A connecting arm is fixedly installed on the top and bottom of the outer side of the slider. A locking adjustment component is provided on one side of the guide rail.

[0006] Furthermore, a support arm is fixedly connected to the side of the positioning side plate away from the connecting arm, and a support rail is fixedly installed on the rear side of the fixed base sleeve. Support blocks are slidably connected to both ends of the support rail, and the end of the support arm away from the positioning side plate is fixedly connected to the rear side of the support block.

[0007] Furthermore, an arc-shaped seat is fixedly installed on the inner side of the positioning side plate. The inner arc surface of the arc-shaped seat is fitted and connected to the outer arc surface of the supporting pile leg and the extended splicing pile leg. The end of the clamping column passes through the arc-shaped seat.

[0008] Furthermore, the locking adjustment assembly includes a side plate, which is fixedly installed at one end of the guide rail. An adjustment handwheel is rotatably connected to the outer side of the side plate, and locking screws are threaded to both ends of the adjustment handwheel. The end of the locking screw passes through the adjustment handwheel.

[0009] Furthermore, an adjusting knob is fixedly connected to the outer end of the locking screw. The outer surface of the adjusting knob is provided with anti-slip textures arranged in a ring at equal intervals, and a wrench groove is provided on the outer side of the adjusting knob.

[0010] Furthermore, the side plate has limit holes arranged in a ring at equal intervals on its outer side, the end of the locking screw is inserted into the inner side of the limit hole, and the wrench groove is generally hexagonal.

[0011] The beneficial effects of this utility model are: 1. During the application of this technical solution, by setting up an integrated connection and adjustment structure, the initial axial splicing of the supporting pile legs and extended splicing pile legs can be quickly completed with the help of the fixed base sleeve and the sleeve groove. Then, through the synergistic effect of the adjustment module, only the adjustment handwheel needs to be turned to drive the positioning modules on both sides to move synchronously. There is no need to operate multiple sets of clamping components independently. Subsequently, the locking adjustment component can be used to quickly complete the fixation. The whole process does not rely on a large number of screws and bolts to operate one by one, thereby simplifying the operation process and reducing the operation steps. It significantly shortens the time for pile leg installation, reduces the workload of operators, and solves the problems of complex, time-consuming and labor-intensive pile leg connection operations and repeated calibration required in the existing technology. 2. During the application of this technical solution, the combination of mechanical clamping and auxiliary support structure enables the positioning module's clamping post to form a stable clamping connection with the pile leg's clamping hole during use. At the same time, the arc-shaped seat enhances the fit with the pile leg, and the support structure provides support for the positioning side plate, preventing positioning offset or tilting. This connection structure not only restricts the circumferential displacement of the pile leg but also improves the overall stress stability, thereby enhancing the connection's stability. It effectively prevents the pile leg from shifting or slipping during subsequent use, avoiding the problems of poor stability and easy loosening and failure due to corrosion caused by relying solely on clamping force or fasteners in existing technologies. This ensures that the pile leg can maintain a reliable connection even when subjected to complex loads. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the combined state structure of this utility model; Figure 3 This is a top view of the fixed base sleeve, adjustment module, and positioning module of this utility model; Figure 4 This is a side view of the fixed base sleeve, adjustment module, and positioning module of this utility model. Figure 5 This is a schematic diagram of the positioning module structure of this utility model.

[0013] In the diagram: 1. Supporting pile leg; 2. Fixing base sleeve; 3. Sleeve groove; 4. Extended splicing pile leg; 5. Adjustment module; 51. Guide rail; 52. Lead screw; 53. Slider; 54. Support arm; 55. Support rail; 56. Locking adjustment assembly; 561. Side plate; 562. Adjusting handwheel; 563. Locking screw; 564. Adjusting knob; 565. Wrench groove; 566. Limiting hole; 57. Support block; 6. Positioning module; 61. Connecting arm; 62. Locking hole; 63. Positioning side plate; 64. Locking post; 65. Arc-shaped seat. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0015] A drilling platform leg includes a supporting leg 1 and a fixed base sleeve 2. The fixed base sleeve 2 has a sleeve groove 3 at both the top and bottom. The fixed base sleeve 2 is sleeved on the top of the supporting leg 1 through the sleeve groove 3 at the bottom. An extended splicing leg 4 is inserted into the top of the fixed base sleeve 2. An adjustment module 5 is fixedly installed on one side of the fixed base sleeve 2. A positioning module 6 is fixedly installed on both moving ends of the adjustment module 5. The positioning module 6 is engaged with the supporting leg 1 and the end of the extended splicing leg 4 near the fixed base sleeve 2. The positioning module 6 includes a connecting arm 61 and locking holes 62. The connecting arm 61 is fixedly connected to the outer side of the moving end of the adjusting module 5. A positioning side plate 63 is fixedly installed on the outer end of the connecting arm 61. Locking posts 64 are fixedly connected at equal intervals on the inner side of the positioning side plate 63. Locking holes 62 are evenly spaced on the top outer surface of the supporting pile leg 1 and the outer surfaces of both ends of the extended splicing pile leg 4. The ends of the locking posts 64 are inserted into the inside of the locking holes 62. During the application of this device, by setting up the supporting pile leg 1, the fixed base sleeve 2, the sleeve groove 3, the extended splicing pile leg 4, the adjusting module 5, and the positioning module 6, it is possible to first put the fixed base sleeve 2 on the top of the supporting pile leg 1 through the sleeve groove 3 at the bottom, and then insert the extended splicing pile leg 4 into the top of the fixed base sleeve 2 to complete the initial splicing of the pile leg. After that, the adjusting module 5 is operated, and the moving end of the adjusting module 5 is used to move the pile leg. As the positioning module 6 moves, the connecting arm 61 within it moves synchronously with the moving end, thereby driving the outer positioning side plate 63 closer to the supporting pile leg 1 and the extended splicing pile leg 4. This continues until the end of the locking post 64 on the inner side of the positioning side plate 63 is inserted into the locking holes 62 on the outer surface of the top of the supporting pile leg 1 and the outer surfaces of both ends of the extended splicing pile leg 4, thus achieving the locking and fixing of the positioning module 6 with the pile leg. This method eliminates the need for a large number of screws and bolts for connection. During operation, the positioning module 6 is simply moved by adjusting the module 5 to complete the locking process, simplifying the operation of the pile leg connection and reducing the number of steps. At the same time, the locking engagement between the locking post 64 and the locking hole 62 makes the connection between the pile legs tighter, preventing loosening. This solves the problems of complex and unstable pile leg connections in the prior art, improving the efficiency and reliability of pile leg connections.

[0016] Combination Figures 1-4As shown, the adjustment module 5 includes a guide rail 51, which is fixedly installed on one side of the fixed base sleeve 2. A lead screw 52 is rotatably connected to the inner side of the guide rail 51. Both ends of the lead screw 52 are threadedly connected to sliders 53, which are slidably connected to the inside of the guide rail 51. A connecting arm 61 is fixedly installed on the top and bottom of the outer side of the slider 53. A locking adjustment component 56 is provided on one side of the guide rail 51. A support arm 54 is fixedly connected to the side of the positioning side plate 63 away from the connecting arm 61. A support rail 55 is fixedly installed on the rear side of the fixed base sleeve 2. Support blocks 57 are slidably connected to both ends of the support rail 55. The end of the support arm 54 away from the positioning side plate 63 is fixedly connected to the rear side of the support block 57. An arc-shaped seat 65 is fixedly installed on the inner side of the positioning side plate 63. The inner arc surface of the arc-shaped seat 65 is fitted and connected to the outer arc surface of the support leg 1 and the extended splicing leg 4. The end of the locking post 64 passes through the arc-shaped seat 65.

[0017] In the above-described embodiments of this application, during the application of this device, by setting a guide rail 51, a lead screw 52, ​​a slider 53, a locking adjustment assembly 56, a support arm 54, a support rail 55, a support block 57, and an arc-shaped seat 65, the device allows the adjustment module 5 to be operated during use. The lead screw 52, ​​rotating inside the guide rail 51, drives the slider 53, threaded at both ends, to move within the guide rail 51. During the movement of the slider 53, the outer connecting arm 61 moves synchronously, thereby moving the positioning side plate 63. When the positioning side plate 63 moves, its inner arc-shaped seat 65 first contacts the outer arc surface of the support leg 1 and the extended splicing leg 4. As the slider 53 continues to move, the locking post 64 inside the positioning side plate 63 penetrates the arc-shaped seat 65 until it is inserted into the corresponding position. Inside the corresponding locking hole 62, the support arm 54 on the side of the positioning side plate 63 away from the connecting arm 61 will drive the support block 57 to slide inside the support rail 55, providing auxiliary support for the positioning side plate 63. After the locking is completed, the position can be fixed by the locking adjustment component 56 on the side of the guide rail 51. This design makes the power transmission of the adjustment module 5 more stable. The slider 53 can avoid deviation when moving along the guide rail 51. The arc-shaped seat 65 can increase the contact stability by fitting against the surface of the pile leg. The cooperation between the support arm 54 and the support block 57 can prevent the positioning side plate 63 from tilting. The locking adjustment component 56 can fix the connection state. It does not require a large number of screws, simplifies the operation and makes the pile leg connection more stable. It solves the problems of complicated operation and easy loosening of the connection in the prior art, and improves the connection efficiency and reliability. Example 2

[0018] Combination Figures 3-4As shown, the locking adjustment assembly 56 includes a side plate 561, which is fixedly installed on one end of the guide rail 51. An adjustment handwheel 562 is rotatably connected to the outer side of the side plate 561. Locking screws 563 are threaded to both ends of the adjustment handwheel 562. The end of the locking screw 563 passes through the adjustment handwheel 562. An adjustment knob 564 is fixedly connected to the outer end of the locking screw 563. Anti-slip textures are evenly spaced and arranged in a ring on the outer surface of the adjustment knob 564. A wrench groove 565 is provided on the outer side of the adjustment knob 564. Limiting holes 566 are evenly spaced and arranged in a ring on the outer side of the side plate 561. The end of the locking screw 563 is inserted into the inner side of the limiting hole 566. The wrench groove 565 is generally hexagonal.

[0019] In the above-described embodiments of this application, during the application of this device, by setting a side plate 561, adjusting handwheel 562, locking screw 563, adjusting knob 564, anti-slip texture, wrench groove 565, and limiting hole 566, when operating the locking adjustment component 56, the adjusting handwheel 562 on the outer side of the side plate 561 can be rotated first. The rotation of the adjusting handwheel 562 will drive the locking screw 563, which is threaded to it, to move, so that the end of the locking screw 563 can be accurately aligned with the limiting hole 566 on the outer side of the side plate 561. When it is necessary to fix the position of the adjustment module 5, the adjusting knob 564 is rotated. The anti-slip texture on the outer surface of the adjusting knob 564 can increase the friction between the hand and the knob, making it easier to apply force. If more force is required, the wrench groove 565 can also be used. The tool, with its hexagonal wrench groove 565, can stably engage the tool, thereby driving the locking screw 563 to continue moving until the end of the locking screw 563 is inserted into the inner side of the limiting hole 566, completing the position fixation. This design makes the locking adjustment operation more convenient, and the anti-slip texture prevents slippage during rotation. The hexagonal wrench groove 565 is compatible with commonly used tools, improving operational flexibility. The cooperation between the locking screw 563 and the limiting hole 566 can firmly fix the position of the adjusting handwheel 562, preventing the connection from loosening due to accidental rotation of the adjusting handwheel 562 during subsequent use. It does not require additional fasteners, simplifying the fixing process while enhancing the reliability of the locking structure. It solves the problems of inconvenient locking operation and unstable fixing in the prior art, ensuring the stable state after the pile leg is connected.

[0020] The working principle and advantages of this utility model are as follows: When using this device, the initial assembly preparation is first carried out. The fixed base sleeve 2 is fitted onto the top of the support pile leg 1 through the sleeve groove 3 at its bottom, completing the initial positioning of the fixed base sleeve 2 and the support pile leg 1. Then, the extended splicing pile leg 4 is inserted into the top of the fixed base sleeve 2, so that the support pile leg 1, the fixed base sleeve 2, and the extended splicing pile leg 4 form a preliminary axial splicing structure. The fixed base sleeve 2 serves as the intermediate carrier connecting the support pile leg 1 and the extended splicing pile leg 4, and the sleeve groove 3 provides the initial installation and positioning space for the support pile leg 1 and the extended splicing pile leg 4, ensuring the initial alignment of the three in the axial direction. This step does not rely on traditional screws and bolts for initial fixation, reducing the tedious operation of the initial positioning and creating conditions for subsequent rapid connection. At the same time, it avoids the problem of axial offset caused by improper screw installation during traditional initial positioning. After the initial assembly is completed, operate the adjustment module 5. First, contact the adjustment handwheel 562 in the locking adjustment assembly 56. Since the adjustment handwheel 562 is rotatably connected to the side plate 561 and associated with the lead screw 52, ​​rotating the adjustment handwheel 562 can drive the lead screw 52 inside the guide rail 51 to rotate. When the lead screw 52 rotates, the slider 53, which is threaded at both ends, will slide along the inside of the guide rail 51. The guide rail 51 provides sliding guidance for the slider 53, restricting the slider 53 to move only along the length direction of the guide rail 51 to avoid deviation. During the sliding process, the slider 53 drives the connecting arm 61 to move synchronously. The connecting arm 61 will slide... The power of block 53 is transmitted to positioning module 6, thereby realizing the position adjustment of positioning module 6. This technical solution adjusts the handwheel 562, lead screw 52 and slider 53. Only a single rotation action is needed to drive the sliders 53 on both sides to move synchronously. Unlike the existing patent solution, there is no need to operate the clamping components on both sides independently. This greatly simplifies the operation process, reduces the work of operators to repeatedly calibrate the position on both sides, and reduces the workload. At the same time, the design of slider 53 sliding along guide rail 51 ensures the stability of movement and avoids the positioning module 6 from deviating when moving, further improving the convenience of operation. As the adjusting handwheel 562 continues to rotate, the connecting arm 61 drives the positioning side plate 63 to move. The positioning side plate 63 carries the locking post 64 and the arc-shaped seat 65. During the movement of the positioning side plate 63, the arc-shaped seat 65 on its inner side first contacts the outer surface of the top of the supporting pile leg 1 and the outer surfaces of both ends of the extended splicing pile leg 4. The inner arc surface of the arc-shaped seat 65 fits against the arc surface of the outer surface of the pile leg, increasing the contact area between the positioning side plate 63 and the surface of the pile leg. At the same time, its arc surface can enhance the fitting support capacity and avoid local stress concentration caused by point contact or line contact between the positioning side plate 63 and the surface of the pile leg. Subsequently, the locking post 64 gradually moves with the continued movement of the positioning side plate 63. As the module approaches the pile leg, the end of the locking post 64 passes through the arc-shaped seat 65 and is inserted into the locking hole 62. The locking hole 62 and the locking post 64 cooperate to form a mechanical locking structure, thereby achieving radial fixation of the positioning module 6 and the pile leg. During this process, the support arm 54 on the side of the positioning side plate 63 away from the connecting arm 61 moves synchronously. The support arm 54 drives the support block 57 to slide inside the support rail 55. The support rail 55 provides sliding guidance for the support block 57. The support block 57 and the support arm 54 cooperate to provide auxiliary support for the positioning side plate 63, preventing the positioning side plate 63 from tilting during movement or locking, and ensuring that the positioning side plate 63 is always in a stable working posture. After the locking pin 64 and locking hole 62 are engaged, the adjusting knob 564 in the locking adjustment assembly 56 is operated. The anti-slip texture on the outer surface of the adjusting knob 564 increases the friction between the hand and the adjusting knob 564, making it easier for the operator to apply force to turn it. The wrench groove 565 on its outer side is hexagonal and can be fitted with a wrench, making it easy to turn the adjusting knob 564 with the assistance of a wrench. Turning the adjusting knob 564 drives the locking screw 563 to rotate. Since the locking screw 563 and the adjusting handwheel are engaged, the locking screw 563 can be engaged with the adjusting handwheel. 562 threaded connection, locking screw 563 moves axially along adjusting handwheel 562 until the end of locking screw 563 is inserted into limiting hole 566. Limiting hole 566 and locking screw 563 cooperate to restrict the rotation of adjusting handwheel 562, thereby restricting screw 52 rotation, and finally fixing the position of slider 53. This prevents slider 53 from sliding due to external force during subsequent use, causing locking post 64 to disengage from locking hole 62. This technical solution uses a fixed base sleeve 2 and a sleeve groove 3. The structure, including adjustment module 5, positioning module 6, support arm 54, support rail 55, support block 57, and locking adjustment assembly 56, eliminates the need for traditional screws and bolts during use. The splicing and fixing of the pile legs can be completed with simple operations, significantly reducing operation steps, shortening pile leg installation time, and improving the efficiency of pile leg extension operations. Simultaneously, the fit between the arc-shaped seat 65 and the pile leg, the mechanical engagement of the locking post 64 and the locking hole 62, and the auxiliary support of the support structure form a more stable connection structure. This effectively limits the relative displacement of the pile legs in the circumferential and axial directions, improving connection stability and avoiding connection failures caused by loosening of screws and bolts due to marine corrosion, a problem common in traditional connection methods. When subjected to wave loads, wind loads, and the platform's own weight, it effectively prevents pile leg displacement or slippage, ensuring the reliability of the pile leg connection. Furthermore, during the application of this device, a bellows cover can be installed on the outside of the guide rail 51 to help cover the lead screw 52 for dust protection. The scope of protection of this application does not involve improvements to the electronic components of the device or equipment. Therefore, the working principles of each electronic component are not described in detail here. The electronic components in this application are all conventional electronic components used in the prior art. They are all conventional technical means in the prior art, and the application of the prior art is very mature. Therefore, they will not be elaborated here.

[0021] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A drilling platform leg, characterized in that, The device includes a support leg (1) and a fixed base sleeve (2). The fixed base sleeve (2) has a sleeve groove (3) at both the top and bottom. The fixed base sleeve (2) is sleeved onto the top of the support leg (1) through the sleeve groove (3) at the bottom. An extended splicing leg (4) is inserted into the top of the fixed base sleeve (2). An adjustment module (5) is fixedly installed on one side of the fixed base sleeve (2). A positioning module (6) is fixedly installed on both moving ends of the adjustment module (5). The positioning module (6) is engaged with the support leg (1) and the extended splicing leg (4) at the end near the fixed base sleeve (2). The positioning module (6) includes a connecting arm (61) and a locking hole (62). The connecting arm (61) is fixedly connected to the outside of the moving end of the adjustment module (5). A positioning side plate (63) is fixedly installed on the outer end of the connecting arm (61). A locking post (64) is fixedly connected at equal intervals on the inner side of the positioning side plate (63). The locking holes (62) are opened at equal intervals on the top outer surface of the supporting pile leg (1) and the two outer surfaces of the extended splicing pile leg (4). The end of the locking post (64) is inserted into the inside of the locking hole (62).

2. The drilling platform leg according to claim 1, characterized in that, The adjustment module (5) includes a guide rail (51), which is fixedly installed on one side of the fixed base sleeve (2). A lead screw (52) is rotatably connected to the inner side of the guide rail (51). Both ends of the lead screw (52) are threadedly connected to sliders (53). The sliders (53) are slidably connected to the inside of the guide rail (51). The connecting arm (61) is fixedly installed on the top and bottom of the outer side of the slider (53). A locking adjustment component (56) is provided on one side of the guide rail (51).

3. A drilling platform leg according to claim 1, characterized in that, A support arm (54) is fixedly connected to the side of the positioning side plate (63) away from the connecting arm (61). A support rail (55) is fixedly installed on the rear side of the fixed base sleeve (2). Support blocks (57) are slidably connected to both ends of the support rail (55). The end of the support arm (54) away from the positioning side plate (63) is fixedly connected to the rear side of the support block (57).

4. A drilling platform leg according to claim 3, characterized in that, An arc-shaped seat (65) is fixedly installed on the inner side of the positioning side plate (63). The inner arc surface of the arc-shaped seat (65) is fitted and connected to the outer arc surface of the supporting pile leg (1) and the extended splicing pile leg (4). The end of the clamping column (64) passes through the arc-shaped seat (65).

5. A drilling platform leg according to claim 2, characterized in that, The locking adjustment assembly (56) includes a side plate (561), which is fixedly installed on one end of the guide rail (51). An adjustment handwheel (562) is rotatably connected to the outer side of the side plate (561). Locking screws (563) are threaded to both ends of the adjustment handwheel (562), and the end of the locking screw (563) passes through the adjustment handwheel (562).

6. A drilling platform leg according to claim 5, characterized in that, The outer end of the locking screw (563) is fixedly connected to an adjusting knob (564). The outer surface of the adjusting knob (564) is provided with anti-slip textures arranged in a ring at equal intervals. A wrench groove (565) is provided on the outer side of the adjusting knob (564).

7. A drilling platform leg according to claim 6, characterized in that, The side plate (561) has equidistant limit holes (566) arranged in a ring on the outer side. The end of the locking screw (563) is inserted into the inner side of the limit hole (566). The wrench groove (565) is generally hexagonal.

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