Rotary drilling rig casing device in a fill area

Abstract

This utility model provides a casing device for rotary drilling rigs in miscellaneous fill areas, belonging to the field of pile foundation construction technology. The casing device for rotary drilling rigs in miscellaneous fill areas provided by this utility model includes an inner casing, an outer casing, and a limiting device; the outer casing is fitted onto the outer circumferential surface of the inner casing; the limiting device is located on the inner wall of the outer casing and the outer wall of the inner casing; wherein, the limiting device includes a guide groove, a guide protrusion, and several fastening holes; the guide groove is located on the outer wall of the inner casing; the guide protrusion is located on the inner wall of the outer casing and is limited within the guide groove; several fastening holes are arranged on the inner and outer casings for installing fasteners to fix the inner and outer casings together; this device allows adjustment of the casing length according to the actual conditions of the miscellaneous fill area, and then fasteners are screwed into the fastening holes to achieve fixation between the inner and outer casings, making operation convenient and easy to use.

Description

Technical Field

[0001] This utility model belongs to the field of pile foundation construction technology, and more specifically, it relates to a casing device for rotary drilling rigs in miscellaneous fill areas. Background Technology

[0002] A steel casing is a cylindrical structure made of steel, widely used in foundation construction for building engineering, bridge engineering, and water conservancy projects, especially as a key auxiliary device in bored pile construction. Its main functions are to protect the borehole opening, isolate groundwater, fix the pile position, and guide the drilling direction, ensuring the smooth progress of pile foundation construction.

[0003] Miscellaneous fill contains a large amount of gravel and construction waste, with varying thickness, loose structure, highly uneven soil texture, poor mechanical properties, insufficient consolidation, and poor stability. When installing steel casings in miscellaneous fill areas, traditional steel casings are mostly fixed-length structures, which have poor versatility and insufficient adaptability. Fixed-length steel casings are only applicable to a limited range of scenarios. If the pile depth exceeds the casing length, additional casing splicing is required (through flange connection or welding), which not only increases construction procedures and time but may also lead to casing deformation due to insufficient strength at the splice. If the pile depth is less than the casing length, an excessively long casing will increase the difficulty of hoisting and is prone to interference with the drilling tools during drilling, affecting construction efficiency.

[0004] Based on this, the applicant designed a casing device for rotary drilling rigs in miscellaneous fill areas, taking into account the actual conditions of such areas. Utility Model Content

[0005] The purpose of this utility model is to provide a casing device for rotary drilling rigs in miscellaneous fill areas, so as to solve the technical problem that in the prior art, when setting steel casings in miscellaneous fill areas, traditional steel casings are mostly fixed length structures, with poor versatility and insufficient adaptability.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A casing device for a rotary drilling rig in a mixed fill area is provided, comprising an inner casing, an outer casing, and a limiting device; the outer casing is sleeved on the outer circumferential surface of the inner casing; the limiting device is disposed on the inner wall of the outer casing and the outer wall of the inner casing; wherein, the limiting device includes a guide groove, a guide protrusion, and several fastening holes; the guide groove is disposed on the outer wall of the inner casing; the guide protrusion is disposed on the inner wall of the outer casing and is limited within the guide groove; several fastening holes are arranged on the inner casing and the outer casing for installing fasteners to fix the inner casing and the outer casing together.

[0007] In one possible implementation, based on the above technical solutions, the guide protrusion includes several groups of guide blocks, which are arranged along the axial direction of the outer protective cylinder on the inner wall of the outer protective cylinder. Each guide block group includes a first guide block and a second guide block, which are symmetrically arranged on the inner wall of the outer protective cylinder with respect to the axial direction of the outer protective cylinder.

[0008] In one possible implementation, based on the above technical solutions, the guide groove includes a first guide groove and a second guide groove. The first guide groove and the second guide groove have the same structure and are symmetrically arranged on the outer wall of the inner protective cylinder with respect to the axis of the inner protective cylinder.

[0009] In one possible implementation, based on the above technical solutions, the plurality of fastening holes include a first hole group, a second hole group, and a third hole group. The first hole group is disposed on the first guide block, the second hole group is disposed on the second guide block, the first hole group and the second hole group penetrate the cylinder wall of the outer protective cylinder, and the third hole group is disposed in the first guide groove and the second guide groove, and the number of the third hole group is equal to the number of the guide block group.

[0010] In one possible implementation, based on the above technical solutions, a support platform is provided on the inner side of the bottom end of the outer casing, and the inner casing is placed on the support platform.

[0011] In one possible implementation, based on the above technical solutions, the bottom end of the outer casing is provided with a chisel-shaped tooth for cutting the fill soil.

[0012] In one possible implementation, based on the above technical solutions, the outer casing is provided with a sealing device at its end. The sealing device includes a receiving ring platform and a compression ring. The receiving ring platform is located at the end of the outer casing, and the compression ring is fixed on the receiving ring platform. The end of the compression ring is provided with compression teeth. The compression teeth, the receiving ring platform, and the outer wall of the inner casing form a sealing cavity for placing the sealing ring to seal between the inner casing and the outer casing.

[0013] In one possible implementation, based on the above technical solutions, a first top block is provided at the position opposite to the first guide groove of the extrusion tooth, for pushing the sealing ring into the first guide groove, and a second top block is provided at the position opposite to the second guide groove of the extrusion tooth, for pushing the sealing ring into the second guide groove.

[0014] In one possible implementation, based on the above technical solutions, a plurality of locking holes are provided on the side wall of the receiving ring platform and the ring wall of the extrusion ring, and the fasteners are provided in the locking holes to fix the extrusion ring on the receiving ring platform.

[0015] The beneficial effects of the casing device for rotary drilling rigs in miscellaneous fill areas provided by this utility model are as follows: Compared with the prior art, this utility model includes an inner casing and an outer casing, with the outer casing fitted onto the inner casing. The inner wall of the outer casing and the outer wall of the inner casing are equipped with mutually cooperating length adjustment limiting devices. The limiting devices include a guide groove on the outer wall of the inner casing, a guide protrusion on the inner wall of the outer casing, and several fastening holes on both the inner and outer casings. When the length of the casing device needs to be adjusted, the fasteners located in the fastening holes are screwed in and removed. At this time, the limiting device between the inner and outer casings is no longer present, meaning the guide protrusion on the outer casing can move relative to the inner casing along the guide groove. After adjusting the length of the casing device according to the actual conditions of the miscellaneous fill area, the fasteners are screwed into the fastening holes to achieve fixation between the inner and outer casings. This method is convenient and easy to use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the casing device for a rotary drilling rig in a mixed fill area provided in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the inner casing of the rotary drilling rig casing device for miscellaneous fill areas provided in this embodiment of the utility model;

[0019] Figure 3 A structural schematic diagram of the inner casing of the rotary drilling rig casing device for miscellaneous fill areas provided in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the outer casing of the rotary drilling rig casing device for miscellaneous fill areas provided in this embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the outer casing of the rotary drilling rig casing device for miscellaneous fill areas provided in this embodiment of the utility model from another perspective.

[0022] Figure 6 A schematic diagram of the chisel-feeding teeth of the casing device for a rotary drilling rig in a mixed fill area provided in an embodiment of this utility model;

[0023] Figure 7 Exploded view of the sealing device of the rotary drilling rig casing device in the miscellaneous fill area provided in the embodiment of this utility model;

[0024] Figure 8 An exploded view from another perspective of the sealing device of the rotary drilling rig casing device for miscellaneous fill areas provided in this embodiment of the utility model;

[0025] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0026] Figure 10 A cross-sectional view of the casing device for a rotary drilling rig in a mixed fill area provided in this embodiment of the utility model;

[0027] Figure 11 for Figure 10 Enlarged view of point B in the middle.

[0028] The labels for the attached figures are as follows:

[0029] 100. Inner casing; 200. Outer casing; 210. Support platform; 220. Drilling teeth;

[0030] 300, First guide groove; 320, Second guide groove; 410, First guide block; 420, Second guide block;

[0031] 500, First hole group; 510, Second hole group; 520, Third hole group; 600, Sealing device;

[0032] 610. Receiving ring; 620. Extrusion ring; 621. Extrusion tooth; 622. First ejector block;

[0033] 623. Second top block; 630. Sealing cavity; 640. Locking hole. Detailed Implementation

[0034] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] It should be further explained that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.

[0036] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] The directional terms "inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0040] The casing device for rotary drilling rigs in miscellaneous fill areas provided by this utility model will now be described.

[0041] like Figures 1 to 5 As shown, this utility model provides a casing device for a rotary drilling rig in a mixed fill area, including an inner casing 100, an outer casing 200, and a limiting device; the outer casing 200 is sleeved on the outer circumferential surface of the inner casing 100; the limiting device is disposed on the inner wall of the outer casing 200 and the outer wall of the inner casing 100; wherein, the limiting device includes a guide groove, a guide protrusion, and several fastening holes; the guide groove is disposed on the outer wall of the inner casing 100; the guide protrusion is disposed on the inner wall of the outer casing 200 and is limited within the guide groove; several fastening holes are arranged on the inner casing 100 and the outer casing 200 for installing fasteners to fix the inner casing 100 and the outer casing 200 together.

[0042] The casing device for rotary drilling rigs in miscellaneous fill areas provided by this utility model, compared with the prior art, includes an inner casing 100 and an outer casing 200. The outer casing 200 is sleeved on the inner casing 100, and the inner wall of the outer casing 200 and the outer wall of the inner casing 100 are provided with mutually cooperating limiting devices for length adjustment. The limiting devices include a guide groove on the outer wall of the inner casing 100, a guide protrusion on the inner wall of the outer casing 200, and a plurality of fastening holes on the inner casing 100 and the outer casing 200; when When the length of the casing device needs to be adjusted, tighten and remove the fastener located in the fastening hole. The fastener can be a bolt, screw, or screw. At this time, there is no longer a limiting setting between the inner casing 100 and the outer casing 200. That is, the guide protrusion on the outer casing 200 can move relative to the inner casing 100 along the guide groove. After adjusting the length of the casing device according to the actual situation of the fill soil area, tighten the fastener into the fastening hole to fix the inner casing 100 and the outer casing 200. The operation is convenient and easy to use.

[0043] like Figure 4 and Figure 5 As shown, in a specific embodiment of the rotary drilling rig casing device for miscellaneous fill areas provided by this utility model, the guide protrusion includes several sets of guide block groups. The several sets of guide block groups are arranged on the inner wall of the outer casing 200 along the axial direction of the outer casing 200. The guide block group includes a first guide block 410 and a second guide block 420. The first guide block 410 and the second guide block 420 are symmetrically arranged on the inner wall of the outer casing 200 with respect to the axial direction of the outer casing 200.

[0044] In a specific embodiment of the casing device for rotary drilling rigs in miscellaneous fill areas provided by this utility model, the guide groove includes a first guide groove 300 and a second guide groove 320. The first guide groove 300 and the second guide groove 320 have the same structure and are symmetrically arranged on the outer wall of the inner casing 100 with respect to the axis of the inner casing 100.

[0045] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a specific embodiment of the casing device for rotary drilling rigs in miscellaneous fill areas provided by this utility model, a plurality of fastening holes include a first hole group 500, a second hole group 510, and a third hole group 520. The first hole group 500 is disposed on the first guide block 410, the second hole group 510 is disposed on the second guide block 420, the first hole group 500 and the second hole group 510 penetrate the cylinder wall of the outer casing 200, and the third hole group 520 is disposed in the first guide groove 300 and the second guide groove 320, and the number of the third hole group 520 is equal to the number of guide block groups. In this embodiment, there are a total of three groups of guide blocks, and there are also three groups of third hole groups 520 disposed in the first guide groove 300 and the second guide groove 320. That is, this casing device can be adjusted in three length positions. In addition, the construction worker can choose the casing device with a specific number of positions according to the specific local environment.

[0046] like Figure 4 As shown, in a specific embodiment of the rotary drilling rig casing device for miscellaneous fill areas provided by this utility model, a support platform 210 is provided on the inner side of the bottom end of the outer casing 200, and the inner casing 100 is erected on the support platform 210.

[0047] Specifically, when construction is not required, all fasteners can be removed from the fastening holes. In order to save space and facilitate the transportation of the casing device, the outer casing 200 can be erected. At this time, the bottom of the outer casing 200 stands on the ground, while the inner casing 100 will be erected on the support platform 210 due to gravity. The support platform 210 supports the inner casing 100.

[0048] like Figure 6 As shown, in a specific embodiment of the rotary drilling rig casing device for miscellaneous fill areas provided by this utility model, the bottom end of the outer casing 200 is provided with a chisel tip 220 for cutting the miscellaneous fill.

[0049] It should be noted that when this casing device is to be installed in a fill area, the length should be adjusted first, and the outer casing 200 and inner casing 100 should be fixedly installed. Then, the drilling teeth 220 at the bottom of the outer casing 200 should be brought into contact with the ground. After that, the inner casing 100 should be struck with a vibratory hammer. Under the huge pressure of the vibratory hammer, the inner casing 100 will push the outer casing 200 into the fill area. By setting the drilling teeth 220 at the bottom of the outer casing 200, the drilling teeth 220 will contact and cut the fill during the drilling process, making it easier for the outer casing 200 to enter the fill area.

[0050] like Figures 7 to 11 As shown, in a specific embodiment of the casing device for rotary drilling rigs in miscellaneous fill areas provided by this utility model, a sealing device 600 is provided at the end of the outer casing 200. The sealing device 600 includes a receiving ring platform 610 and a compression ring 620. The receiving ring platform 610 is opened at the end of the outer casing 200, and the compression ring 620 is fixed on the receiving ring platform 610. The end of the compression ring 620 is provided with a compression protrusion 621. The compression protrusion 621, the receiving ring platform 610 and the outer wall of the inner casing 100 constitute a sealing cavity 630, which is used to place the sealing ring to seal between the inner casing 100 and the outer casing 200.

[0051] Here, in order to ensure the sealing performance between the inner wall of the outer casing 200 and the outer wall of the inner casing 100, a receiving ring platform 610 is opened at the top of the outer casing 200. An extrusion ring 620 is fixedly installed on the receiving ring platform 610. An extrusion protrusion 621 is provided at the bottom end of the extrusion protrusion 621. The sealing cavity 630 formed by the extrusion protrusion 621, the receiving ring platform 610 and the outer wall of the inner casing 100 is provided with a sealing ring. By setting the sealing ring, the sealing performance between the inner wall of the outer casing 200 and the outer wall of the inner casing 100 is ensured, which can prevent mud or water flow from affecting the pile hole formation.

[0052] When installing the sealing ring, first insert the inner sleeve 100 into the upper end of the outer sleeve 200. After determining the length and tightening the fasteners, place the sealing ring on the outer wall of the inner sleeve 100 and push the sealing ring onto the receiving ring platform 610. At this time, the extrusion ring 620 can be installed. During the installation of the extrusion ring 620, the extrusion protrusion 621 at the bottom of the extrusion ring 620 will continuously extrude the sealing ring, so that the sealing ring is tightly attached to the outer wall of the inner sleeve 100. When the extrusion ring 620 is installed, the extrusion protrusion 621, the receiving ring platform 610 and the outer wall of the inner sleeve 100 form a sealing cavity 630. The sealing ring is tightly confined in the sealing cavity 630, ensuring the sealing performance between the inner wall of the outer sleeve 200 and the outer wall of the inner sleeve 100.

[0053] Secondly, to ensure the sealing of the outer casing 200, before using this casing device, it is necessary to note that before aligning the first hole group 500 with the third hole group 520, and aligning the second hole group 510 with the third hole group 520, and before screwing in the fasteners, sealing gaskets need to be placed in the first hole group 500 and the second hole group 510, and then the fasteners are screwed in. Sealing gaskets also need to be placed in the remaining first hole group 500 and the second hole group 510, and then the fasteners are screwed in to ensure the sealing of the outer casing 200.

[0054] like Figure 8 and Figure 9 As shown, in a specific embodiment of the rotary drilling rig casing device for miscellaneous fill areas provided by this utility model, a first top block 622 is provided at the position opposite to the first guide groove 300 of the extrusion tooth 621, for pushing the sealing ring into the first guide groove 300; a second top block 623 is provided at the position opposite to the second guide groove 320 of the extrusion tooth 621, for pushing the sealing ring into the second guide groove 320.

[0055] In addition, in order to enable the sealing ring to enter the first guide groove 300 and the second guide groove 320, a first top block 622 and a second top block 623 are provided on the extrusion protrusion 621. When the extrusion ring 620 is installed, the first top block 622 pushes the sealing ring into the first guide groove 300, and the second top block 623 pushes the sealing ring into the second guide groove 320, which further ensures the sealing performance between the inner wall of the outer protective sleeve 200 and the outer wall of the inner protective sleeve 100.

[0056] like Figure 7 As shown, in a specific embodiment of the rotary drilling rig casing device for miscellaneous fill areas provided by this utility model, a plurality of sets of locking holes 640 are provided on the side wall of the receiving ring platform 610 and the ring wall of the extrusion ring 620. Fasteners are provided in the locking holes 640 to fix the extrusion ring 620 on the receiving ring platform 610.

[0057] Specifically, the locking holes 640 can be set in multiple sets. When it is necessary to fasten the compression ring 620 to the receiving ring platform 610, it is only necessary to screw the fastener into the locking holes 640.

[0058] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0059] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0060] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A rotary drilling rig casing device for a fill area, characterized by, include: Inner casing (100); An outer protective sleeve (200) is fitted onto the outer circumferential surface of the inner protective sleeve (100); A limiting device is provided on the inner wall of the outer protective cylinder (200) and the outer wall of the inner protective cylinder (100); The limiting device includes: A guide groove is provided on the outer wall of the inner protective cylinder (100); A guide protrusion is provided on the inner wall of the outer protective cylinder (200) and is confined within the guide groove; Several fastening holes are arranged on the inner protective sleeve (100) and the outer protective sleeve (200) for installing fasteners to fix the inner protective sleeve (100) and the outer protective sleeve (200).

2. The soil mixed area rotary drilling machine casing device according to claim 1, characterized by: The guide protrusion includes several groups of guide blocks, which are arranged along the axial direction of the outer protective cylinder (200) on the inner wall of the outer protective cylinder (200). Each guide block group includes a first guide block (410) and a second guide block (420), which are symmetrically arranged on the inner wall of the outer protective cylinder (200) with respect to the axial direction of the outer protective cylinder (200).

3. The soil mixed area rotary drilling machine casing device according to claim 2, characterized by: The guide groove includes a first guide groove (300) and a second guide groove (320). The first guide groove (300) and the second guide groove (320) have the same structure. The first guide groove (300) and the second guide groove (320) are symmetrically arranged on the outer wall of the inner protective cylinder (100) with respect to the axis of the inner protective cylinder (100). 4.The soil-reinforced area rotary drilling machine casing device according to claim 3, wherein: The fastening holes include a first hole group (500), a second hole group (510), and a third hole group (520). The first hole group (500) is disposed on the first guide block (410), and the second hole group (510) is disposed on the second guide block (420). The first hole group (500) and the second hole group (510) penetrate the cylinder wall of the outer protective cylinder (200). The third hole group (520) is disposed in the first guide groove (300) and the second guide groove (320), and the number of the third hole group (520) is equal to the number of the guide block groups. 5.The soil-reinforced area rotary drilling machine casing device according to claim 1, wherein: The outer casing (200) has a support platform (210) on the inner side of its bottom end, and the inner casing (100) is placed on the support platform (210). 6.The soil-reinforced area rotary drilling machine casing device according to claim 1, wherein: The bottom end of the outer casing (200) is provided with a chisel tip (220) for cutting the fill soil. 7.The soil-reinforced area rotary drilling machine casing device according to claim 3, wherein: The outer casing (200) is provided with a sealing device (600) at its end. The sealing device (600) includes a receiving ring platform (610) and a compression ring (620). The receiving ring platform (610) is located at the end of the outer casing (200). The compression ring (620) is fixed on the receiving ring platform (610). The end of the compression ring (620) is provided with a compression protrusion (621). The compression protrusion (621), the receiving ring platform (610), and the outer wall of the inner casing (100) form a sealing cavity (630) for placing the sealing ring to seal between the inner casing (100) and the outer casing (200). 8.The soil-reclamation-area rotary drilling rig pile device of claim 7, wherein: The extrusion protrusion (621) is provided with a first top block (622) at a position opposite to the first guide groove (300), which is used to push the sealing ring into the first guide groove (300), and the extrusion protrusion (621) is provided with a second top block (623) at a position opposite to the second guide groove (320), which is used to push the sealing ring into the second guide groove (320). 9.The soil-reclamation-area rotary drilling rig pile device of claim 8, wherein: A plurality of sets of locking holes (640) are arranged on the side wall of the accommodating ring table (610) and the ring wall of the extrusion ring (620), and the locking holes (640) are provided with fasteners, which are used to fix the extrusion ring (620) on the accommodating ring table (610).

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