Reaming tool for loose surface soil layer

Abstract

The utility model discloses a loose surface soil layer reaming tool, which relates to the technical field of surface soil layer reaming and comprises a main shaft, a drill bit is arranged at the bottom of the main shaft, a fixing seat is arranged on the outer side of the main shaft, and a telescopic ring and an adjusting seat are arranged on the outer side of the main shaft. When the loose surface soil layer reaming tool is used for expanding the diameter of the tool, positioning between an adjusting seat and a main shaft is relieved through an adjusting assembly, then the adjusting seat ascends along the outer side of the main shaft, so that an inner ring section is shrunk into an outer ring section, and a telescopic ring is shrunk under the connection action of a mounting lug plate and a movable seat; and similarly, when the adjusting seat moves downwards, the telescopic ring is expanded, so that the diameter of the reaming tool is adjusted, the construction efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of topsoil hole enlargement technology, and in particular to a tool for enlarging holes in loose topsoil. Background Technology

[0002] Topsoil layer enlargement is a commonly used technique in foundation treatment or drilling construction. It is mainly used to increase the bearing area of ​​the foundation, improve stability, or meet specific engineering needs (such as cooling holes, pile foundation construction, etc.). It involves creating cavities by locally excavating the topsoil layer using mechanical or manual methods, and then backfilling with steel bars and concrete to form enlarged piles, thereby enhancing the bearing capacity of the foundation and reducing settlement. In special scenarios (such as Longgu Coal Mine), ultra-large diameter enlargement (such as Φ650mm) is used to solve the construction challenges of extremely thick topsoil layers (567m).

[0003] Existing borehole expanders (such as barrel type, plate type, and roller type) have non-adjustable diameters, requiring the replacement of different specifications of tools to adapt to different borehole diameter requirements, resulting in low construction efficiency and high costs. At the same time, they have poor adaptability. In complex strata (such as loose soil or thick topsoil layers), fixed-diameter tools are prone to problems such as borehole collapse and shrinkage, making it difficult to dynamically adjust the borehole diameter to cope with geological changes. Therefore, this utility model proposes a borehole expander tool for loose topsoil layers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hole-enlarging tool for loose topsoil layers, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a tool for expanding holes in loose topsoil, comprising a spindle, a drill bit at the bottom of the spindle, a fixed seat on the outside of the spindle, a telescopic ring and an adjusting seat on the outside of the spindle, a first stiffener between the fixed seat and the telescopic ring, a second stiffener between the telescopic ring and the adjusting seat, and an adjusting assembly at the connection between the adjusting seat and the spindle;

[0006] The adjustment assembly includes an auxiliary groove, with a positioning groove on the inner side of the auxiliary groove. An auxiliary block one and an auxiliary block two are provided on the inner side of the adjustment seat. A moving hole and a compression groove are provided in the middle of the auxiliary block one. A positioning post is provided inside the moving hole. A hand-held block and an auxiliary plate are provided on the outer side of the positioning post. A reset spring is provided on one side of the auxiliary plate.

[0007] As a further technical solution of this utility model, the main shaft and the fixed seat are fixedly connected, the number of the first stiffener and the adjusting seat are four sets and arranged in an array, the two ends of the first stiffener and the second stiffener are equipped with mounting ears, and the fixed seat, the telescopic ring and the adjusting seat are all provided with movable seats on the outside.

[0008] As a further technical solution of this utility model, the telescopic ring includes an outer ring segment, and an inner ring segment is provided in the middle of the outer ring segment. The number of the outer ring segment and the inner ring segment are four sets, which are arranged in an array.

[0009] As a further technical solution of this utility model, the outer ring segment has a storage cavity inside, and the outer side of the inner ring segment is fixedly connected with a limiting plate that is compatible with the storage cavity.

[0010] As a further technical solution of this utility model, the number of auxiliary slots is four groups and they are arranged in an array. The positioning slots are connected to the auxiliary slots. The number of positioning slots is several groups and they are arranged in an array. The auxiliary block one and the auxiliary block two are both adapted to the auxiliary slots.

[0011] As a further technical solution of this utility model, the moving hole is connected to the compression groove, the positioning stake is fixedly connected to the hand block and the auxiliary plate, and the positioning stake is adapted to the positioning groove.

[0012] This invention provides a hole-enlarging tool for loose topsoil layers. Compared with the prior art, it has the following advantages:

[0013] 1. This design is for a hole-reaming tool for loose topsoil layers. When the tool's diameter is being enlarged, the adjusting seat is released from its positioning relative to the main shaft via an adjusting component. Then, the adjusting seat rises along the outer side of the main shaft, causing the inner ring section to retract into the inner ring section. Under the connection between the mounting ear plate and the movable seat, the telescopic ring retracts. Similarly, when the adjusting seat is moved downwards, the telescopic ring expands, thereby adjusting the diameter of the hole-reaming tool, improving construction efficiency and reducing costs.

[0014] 2. This design is a hole-enlarging tool for loose topsoil. By adjusting the components, when adjusting between the adjusting seat and the main shaft, pulling the hand block moves the positioning pile along the inside of the positioning groove and the moving hole, while simultaneously moving the auxiliary plate along the inside of the compression groove until the positioning pile disengages from the positioning groove. The adjusting seat can then slide along the outside of the main shaft, causing the reinforcing plate two to expand and contract the telescopic ring, thereby positioning the adjusting seat. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a borehole enlargement tool for loose topsoil;

[0016] Figure 2 A partial exploded view of a borehole enlargement tool for loose topsoil layers;

[0017] Figure 3 A tool for enlarging holes in loose topsoil. Figure 2Enlarged view of A in the middle;

[0018] Figure 4 A partial cross-sectional view of a borehole enlargement tool for loose topsoil;

[0019] Figure 5 A cross-sectional view of a borehole enlargement tool for loose topsoil;

[0020] Figure 6 A tool for enlarging holes in loose topsoil. Figure 5 A magnified view of B in the middle.

[0021] In the diagram: 1. Spindle; 2. Drill bit; 3. Fixed seat; 4. Telescopic ring; 41. Outer ring section; 42. Inner ring section; 43. Storage cavity; 44. Limiting plate; 5. Rib plate one; 6. Rib plate two; 7. Adjusting seat; 8. Adjusting assembly; 81. Auxiliary groove; 82. Positioning groove; 83. Auxiliary block one; 84. Auxiliary block two; 85. Moving hole; 86. Compression groove; 87. Positioning stake; 88. Hand block; 89. Auxiliary plate; 810. Return spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution for a hole enlargement tool for loose topsoil: A hole enlargement tool for loose topsoil includes a main shaft 1, a drill bit 2 is provided at the bottom of the main shaft 1, a fixed seat 3 is provided on the outside of the main shaft 1, a telescopic ring 4 and an adjusting seat 7 are provided on the outside of the main shaft 1, a first stiffener 5 is provided between the fixed seat 3 and the telescopic ring 4, a second stiffener 6 is provided between the telescopic ring 4 and the adjusting seat 7, and an adjusting component 8 is provided at the connection between the adjusting seat 7 and the main shaft 1;

[0024] The adjustment component 8 includes an auxiliary groove 81, with a positioning groove 82 on the inner side of the auxiliary groove 81. The inner side of the adjustment seat 7 is provided with an auxiliary block 1 83 and an auxiliary block 2 84. The middle part of the auxiliary block 1 83 is provided with a moving hole 85 and a compression groove 86. The inside of the moving hole 85 is provided with a positioning post 87. The outside of the positioning post 87 is provided with a hand-held block 88 and an auxiliary plate 89. A reset spring 810 is provided on one side of the auxiliary plate 89.

[0025] like Figure 1-2As shown, the main shaft 1 is fixedly connected to the fixed seat 3. There are four sets of stiffening plates 1 and 7 and they are arranged in an array. Both ends of stiffening plates 1 and 2 are equipped with mounting ears. Movable seats are provided on the outside of the fixed seat 3, the telescopic ring 4 and the adjusting seat 7, which facilitates the support of the telescopic ring 4, stiffening plates 1 and 2.

[0026] like Figure 2 and Figure 4 As shown, the telescopic ring 4 includes an outer ring segment 41, and an inner ring segment 42 is provided in the middle of the outer ring segment 41. There are four sets of outer ring segments 41 and inner ring segments 42, which are arranged in an array. A storage cavity 43 is provided inside the outer ring segment 41. A limiting plate 44 that is adapted to the storage cavity 43 is fixedly connected to the outside of the inner ring segment 42, which facilitates the telescopic operation between the outer ring segment 41 and the inner ring segment 42, thereby expanding the diameter of the tool.

[0027] like Figure 3 and Figure 5-6 As shown, there are four sets of auxiliary grooves 81 arranged in an array. The positioning grooves 82 are connected to the auxiliary grooves 81. There are several sets of positioning grooves 82 arranged in an array. Auxiliary block 1 83 and auxiliary block 2 84 are both adapted to the auxiliary grooves 81. The moving hole 85 is connected to the compression groove 86. The positioning stake 87 is fixedly connected to the handheld block 88 and the auxiliary plate 89. The positioning stake 87 is adapted to the positioning grooves 82, which is beneficial for positioning the telescopic ring 4 after its diameter is enlarged.

[0028] The working principle of this utility model is as follows: When the tool is enlarged in diameter, the adjusting seat 7 is released from the main shaft 1 by the adjusting component 8. Then, the adjusting seat 7 rises along the outside of the main shaft 1, thereby retracting the inner ring section 42 into the interior of the outer ring section 41. Under the connection between the mounting ear plate and the movable seat, the first rib plate 5 and the second rib plate 6 rotate close to the main shaft 1, thereby retracting the inner ring section 42 into the interior of the outer ring section 41. Similarly, when the adjusting seat 7 is moved downward, the inner ring section 42 is stretched along the interior of the outer ring section 41, while the first rib plate 5 and the second rib plate 6 expand, thereby supporting the telescopic ring 4, thereby adjusting the diameter of the enlarging tool.

[0029] It should be noted that, by adjusting the setting of component 8, when adjusting between the adjusting seat 7 and the main shaft 1, by pulling the hand block 88, the positioning pile 87 moves along the inside of the positioning groove 82 and the moving hole 85, and at the same time, the auxiliary plate 89 moves along the inside of the compression groove 86, so that the return spring 810 is compressed until the positioning pile 87 is disengaged from the inside of the positioning groove 82. Similarly, the other set of positioning piles 87 is installed. The above operation releases the positioning between the adjusting seat 7 and the main shaft 1, and the adjusting seat 7 slides along the outside of the main shaft 1, so that the auxiliary block 1 83 and the auxiliary block 2 84 slide along the inside of the auxiliary groove 81, so that the adjusting seat 7 drives the rib plate 2 6 to expand and contract the telescopic ring 4, thereby changing the diameter of the enlarged hole, improving construction efficiency and reducing costs.

[0030] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A loose soil layer reaming tool comprising: Includes a spindle (1), a drill bit (2) is provided at the bottom of the spindle (1), a fixed seat (3) is provided on the outside of the spindle (1), a telescopic ring (4) and an adjusting seat (7) are provided on the outside of the spindle (1), a first rib plate (5) is provided between the fixed seat (3) and the telescopic ring (4), a second rib plate (6) is provided between the telescopic ring (4) and the adjusting seat (7), and an adjusting component (8) is provided at the connection between the adjusting seat (7) and the spindle (1). The adjustment assembly (8) includes an auxiliary groove (81), and a positioning groove (82) is provided on the inner side of the auxiliary groove (81). An auxiliary block one (83) and an auxiliary block two (84) are provided on the inner side of the adjustment seat (7). A moving hole (85) and a compression groove (86) are provided in the middle of the auxiliary block one (83). A positioning post (87) is provided inside the moving hole (85). A hand-held block (88) and an auxiliary plate (89) are provided on the outer side of the positioning post (87). A return spring (810) is provided on one side of the auxiliary plate (89).

2. A loose soil layer hole expanding tool according to claim 1, wherein The main shaft (1) is fixedly connected to the fixed seat (3). There are four sets of stiffening plates (5) and adjusting seats (7) arranged in an array. Both ends of stiffening plates (5) and stiffening plates (6) are equipped with mounting ears. Movable seats are provided on the outside of the fixed seat (3), telescopic ring (4) and adjusting seat (7).

3. A loose soil layer hole expanding tool according to claim 1, wherein The telescopic ring (4) includes an outer ring segment (41), and an inner ring segment (42) is provided in the middle of the outer ring segment (41). The number of the outer ring segment (41) and the inner ring segment (42) are four groups and arranged in an array.

4. A loose soil layer hole expanding tool according to claim 3, wherein The outer ring section (41) has a storage cavity (43) inside, and the outer side of the inner ring section (42) is fixedly connected with a limiting plate (44) that is adapted to the storage cavity (43).

5. A loose soil layer hole expanding tool according to claim 1, wherein The number of auxiliary slots (81) is four and they are arranged in an array. The positioning slots (82) are connected to the auxiliary slots (81). The number of positioning slots (82) is several and they are arranged in an array. The auxiliary block one (83) and the auxiliary block two (84) are both adapted to the auxiliary slots (81).

6. A hole-reaming tool for loose topsoil as described in claim 1, characterized in that, The moving hole (85) is connected to the compression groove (86), the positioning stake (87) is fixedly connected to the hand block (88) and the auxiliary plate (89), and the positioning stake (87) is adapted to the positioning groove (82).

Images