A rotary cutting cement-soil mixing pile machine capable of low-headroom operation

Abstract

This utility model discloses a rotary cutting cement-soil mixing pile machine capable of low-headroom operation, comprising: a pile machine body, a fixed frame, and several connecting columns, wherein the pile machine body and the fixed frame are interconnected. Two guide rods are provided on the inner wall of the fixed frame, and a lifting platform is fitted onto the outer wall of the two guide rods. A pressing component is disposed on the upper surface of the lifting platform for pressing down on the connecting columns. Several limiting components are slidably fitted onto the outer wall of the guide rods. This utility model utilizes the interaction between the triangular block and the second spring in the pressing component to clamp the joint of two adjacent connecting columns. With the assistance of the limiting components, the lifting platform is raised and lowered by a designed drive component. Under the action of the triangular block, the connecting columns can be driven into the area around the required drilling position of the drill bit. By compressing the soil, the soil softening is reduced, preventing the drill bit from shifting during drilling.

Description

Technical Field

[0001] This utility model relates to the technical field of cement-soil mixing pile machines, and in particular to a rotary cutting cement-soil mixing pile machine capable of low-headroom operation. Background Technology

[0002] Rotary cutting cement-soil mixing pile machine is a mechanical device used for cement-soil mixing construction. By rotating the drill rod and spraying cement slurry or dry cement powder, it forcibly mixes soft soil with a solidifying agent, hardening the soft soil and thus improving the strength and stability of the foundation. Before the foundation pit support construction, cement-soil mixing piles are usually driven to form a water-stop curtain to prevent water from seeping into the foundation pit from the outside, facilitating construction and ensuring construction safety. Due to height restrictions in some areas, rotary cutting cement-soil mixing pile machines that can operate with low headroom are usually required. This is a mechanical device specifically designed for cement-soil mixing pile construction in environments with limited space and low height.

[0003] Currently, most rotary cutting cement-soil mixing pile machines capable of low-headroom operation experience a problem when the drill bit continuously drills downwards. As the depth increases, factors such as loose soil and drill bit vibration cause the drill bit to easily deviate. Traditionally, the angle of the lowering structure is adjusted to regulate the tilt, but the drill bit's tilt is difficult to control. Direct tilt correction can easily damage the drill bit, and the deviation from the original drilling direction increases with depth, thus affecting the quality of subsequent projects. Utility Model Content

[0004] This invention aims to solve the problem of displacement that occurs during the traditional drilling process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotary cutting cement-soil mixing pile machine capable of low-headroom operation includes: a pile machine body, a fixed frame and several connecting columns, wherein the pile machine body and the fixed frame are interconnected, and the inner wall of the fixed frame is provided with two guide rods, and the outer walls of the two guide rods are jointly fitted with a lifting platform;

[0007] A pressing component, disposed on the upper surface of the lifting platform, is used to press down the connecting column;

[0008] The limiting component is slidably sleeved on the outer wall of the guide rod, and several of them are provided. A first spring is provided between each pair of adjacent limiting components to guide the connecting column.

[0009] The storage component, located at the upper end of the fixed frame, has two parts and is used to store the connecting column. Through the cooperation of the pressing component, the limiting component and the storage component, the soil can be compacted to prevent the soil from becoming loose and causing the drill bit to deviate during drilling.

[0010] Preferably, the pressing component includes a mounting frame disposed on the upper surface of the lifting platform, and the inner wall of the mounting frame is provided with a plurality of limiting rods, the plurality of limiting rods being arranged in pairs, and the outer wall of each pair of limiting rods being fitted with a plurality of triangular blocks;

[0011] The triangular block is a right-angled triangle with its sloping side facing upwards. The outer wall of the limiting rod is equipped with a second spring on the right-angled surface of the triangular block. The compression of the triangular block by the second spring causes the two triangular blocks to clamp the connecting column downwards as the lifting platform descends.

[0012] Preferably, the limiting member includes a connecting rod and three collars, and all three collars are connected to the connecting rod, which can limit the position of the connecting column.

[0013] Preferably, the storage component includes a fixed box disposed on the upper end of the fixed frame, and the fixed box is provided with two sets of elastic clamps with a mirror symmetrical design, which can squeeze the connecting column in the fixed box to prevent it from falling off.

[0014] Preferably, the lower end of the lifting platform is provided with a drill bit component, which includes a motor and a drill rod, to facilitate drilling.

[0015] Preferably, the upper end of the fixed frame is provided with a driving component for controlling the lifting and lowering of the lifting platform. The driving component includes a motor and a lead screw, and the lead screw is threaded through the lifting platform and rotatably connected to the fixed frame. The lifting and lowering of the lifting platform can be controlled by the lead screw on the driving component.

[0016] Preferably, the tip of the connecting post is provided with a toothed block, and the toothed block is engaged with the previous connecting post;

[0017] A steel cable is installed between the two connecting columns at their ends to provide a continuous connection.

[0018] Preferably, the first toothed block of the connecting column has a circumferential array of wedges at its front end. The wedges are driven into the soil around the front end of the connecting column to better adhere and fix the connecting column, preventing it from being pulled out.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By cooperating with the triangular block and the second spring in the lowering component, the two adjacent connecting posts can be clamped together. With the assistance of the limiting component, the lifting platform is controlled to rise and fall by the designed driving component. Under the action of the triangular block, the lifting platform drives the triangular block to continuously drive the connecting post above into the soil. The connecting post can be driven into the surrounding area of ​​the drilling position required by the drill bit. By squeezing the soil, the soil softening is slowed down, and the drill bit is prevented from deviating during the drilling process.

[0021] 2. By driving the connecting posts into the soil, the connected posts will surround the drill bit, which can limit the drill bit in the vertical direction. This effectively alleviates the serious displacement of the bottom drill bit during the next process of multiple connected drill bits, and further solves the problem of drill bit displacement.

[0022] 3. This device can adjust the number of drill bits according to the required drilling depth, making it more flexible and practical.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the storage component and fixing frame structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the pressing component structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the orientation structure of the pressing component of this utility model;

[0030] Figure 6 This is a schematic diagram of the limiting component structure of this utility model;

[0031] Figure 7 This is a schematic diagram of the orientation structure of the limiting component and guide rod of this utility model.

[0032] Figure label:

[0033] In the diagram: 1. Piling machine body; 2. Fixing frame; 3. Guide rod; 4. Drill bit; 5. Lifting platform; 6. Storage component; 7. Limiting component; 8. Pressing component; 9. Connecting column; 10. Tooth block; 11. Steel cable; 12. Driving component; 61. Fixing box; 62. Elastic clamp; 71. Connecting rod; 72. Collar; 73. First spring; 81. Mounting frame; 82. Limiting rod; 83. Triangular block; 84. Second spring. Detailed Implementation

[0034] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Example: Please refer to Figure 1 , 2 7. A rotary cutting cement-soil mixing pile machine capable of low-headroom operation, comprising: pile machine body 1, fixed frame 2 and several connecting columns 9, wherein the pile machine body 1 and fixed frame 2 are interconnected, and two guide rods 3 are provided on the inner wall of the fixed frame 2, and a lifting platform 5 is sleeved on the outer wall of the two guide rods 3.

[0036] The pressing component 8 is installed on the upper surface of the lifting platform 5 and is used to press down the connecting column 9;

[0037] The limiting member 7 is slidably sleeved on the outer wall of the guide rod 3, and there are several of them. A first spring 73 is set between each pair of adjacent limiting members 7 to guide the connecting column 9.

[0038] Storage component 6 is located on the upper end of the fixed frame 2, and there are two of them, used to store the connecting column 9.

[0039] The soil can be compacted by the cooperation of the pressing component 8, the limiting component 7 and the storage component 6, so as to prevent the soil from becoming loose and causing the drill bit to deviate during the drilling process.

[0040] Please see Figure 4-5 The pressing component 8 includes a mounting bracket 81 set on the upper surface of the lifting platform 5, and the inner wall of the mounting bracket 81 is provided with a number of limiting rods 82. The number of limiting rods 82 are arranged in pairs, and the outer wall of each group of limiting rods 82 is fitted with a number of triangular blocks 83.

[0041] The triangular block 83 is a right-angled triangle with its sloping side facing upwards. The outer wall of the limiting rod 82 is provided with a second spring 84 on the right-angled surface of the triangular block 83. The compression of the triangular block 83 by the second spring 84 causes the two triangular blocks 83 to clamp the connecting column 9 and have a downward pressing effect as the lifting platform 5 descends.

[0042] Please see Figure 1 and 6 7. The limiting component 7 includes a connecting rod 71 and three collars 72, and all three collars 72 are connected to the connecting rod 71, which can limit the connecting column 9.

[0043] Please see Figure 1 and 3 The storage component 6 includes a fixed box 61 set on the upper end of the fixed frame 2, and the fixed box 61 is provided with two sets of elastic clips 62 with a mirror symmetrical design, which can squeeze the connecting column 9 in the fixed box 61 to prevent it from falling off.

[0044] Please refer to 3-4. The lower end of the lifting platform 5 is equipped with a drill bit 4, which includes a motor and a drill rod, making it convenient for drilling.

[0045] The upper end of the fixed frame 2 is provided with a drive component 12 for controlling the lifting of the lifting platform 5. The drive component 12 includes a motor and a lead screw, and the lead screw thread passes through the lifting platform 5 and is rotatably connected to the fixed frame 2. The lifting of the lifting platform 5 can be controlled by the lead screw on the drive component 12.

[0046] The tip of the connecting post 9 is provided with a toothed block 10, and the toothed block 10 is engaged with the previous connecting post 9;

[0047] A steel cable 11 is installed between the two connecting columns 9 at their ends, which can serve as a connection. The front end of the first tooth block 10 of the connecting column 9 has a circumferential array of wedges 13. The wedges 13 are driven into the soil around the front end of the connecting column 9, which can better adhere and fix the connecting column 9 and prevent the connecting column 9 from being pulled out. Alternatively, the bottom connecting column 9 has a conical platform on its side, which can be locked into the soil.

[0048] In use, with the assistance of the guide rod 3, the rotation of the screw on the drive component 12 can cause the lifting platform 5 to be adjusted up and down. Since the fixed box 61 is located on the fixed frame 2 and stores several connecting columns 9 inside, and is fixed by the elastic clamp 62, when the lifting platform 5 descends, the second spring 84 uses two corresponding triangular blocks 83 to press inward, causing the lower end of the triangular block 83 to be stuck at the joint of two adjacent connecting columns 9. Then, following the descent of the lifting platform 5, the connecting columns 9 are pressed into the soil, which can make the loose soil become compacted.

[0049] It should be noted that a collar 72 is provided on the outer wall of the guide rod 3, and a first spring 73 is provided between the collars 72. The cooperation between the collars 72 and the first spring 73 can guide the downward pressing connecting column 9.

[0050] By utilizing the cooperation between the fixed box 61 and the elastic clamp 62, the connecting column 9 can be effectively clamped to prevent it from falling off. At the same time, the amount of connecting column 9 pressed down can be adjusted according to the drilling depth of the drill bit.

[0051] As the depth increases, more drill bits are needed to cause the lifting platform 5 to move upwards during the return stroke. Since the lower connecting column 9 enters the soil, the connecting column 9 will be subject to friction from the soil on its outer wall at a certain depth, making it difficult to pull the connecting column 9 out of the soil. During this process, the lifting platform 5 moves upwards. Since the upper surface of the triangular block 83 is inclined and the lower surface of the connecting column 9 is conical, and it is squeezed by the straightened connecting column 9, when the pressing member 8 and the lifting platform 5 move upwards at the same time, the triangular block 83 will squeeze the second spring 84. When the pressing member 8 rises to a certain height with the lifting platform 5, then under the action of the driving member 12, the connecting column 9 can be driven into the soil by the downward movement of the lifting platform 5. Repeating the above steps can limit the drill bit at different depths and achieve soil compression.

[0052] Please see Figure 4 and 7 One specific application of this embodiment is as follows: two adjacent connecting posts 9 are connected by steel cables 11 and locked together by toothed blocks 10. With the assistance of the first spring 73 and the collar 72, the connecting posts 9 are driven vertically into the soil and surround the drill bit, which can further limit the position of the drill bit. As the depth of the drill bit increases, the depth of the connecting posts 9 driven into the soil will also increase, and they can always limit the position around the drill bit to prevent the drill bit from deviating excessively.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rotary cutting cement-soil mixing pile machine capable of low-headroom operation, characterized in that, include: The pile driver body (1), the fixed frame (2) and several connecting columns (9) are connected to each other. The inner wall of the fixed frame (2) is provided with two guide rods (3), and the outer walls of the two guide rods (3) are together fitted with a lifting platform (5). The pressing component (8) is provided on the upper surface of the lifting platform (5) and is used to press down the connecting column (9); The limiting member (7) is slidably sleeved on the outer wall of the guide rod (3), and there are several of them. A set of first springs (73) is provided between each pair of adjacent limiting members (7) to guide the connecting column (9). Storage component (6) is provided on the upper end of the fixed frame (2), and there are two of them, for storing the connecting column (9).

2. The rotary cutting cement-soil mixing pile machine capable of low-headroom operation according to claim 1, characterized in that, The pressing component (8) includes a mounting bracket (81) provided on the upper surface of the lifting platform (5), and the inner wall of the mounting bracket (81) is provided with a number of limiting rods (82). The number of limiting rods (82) are arranged in pairs, and the outer wall of each group of limiting rods (82) is fitted with a number of triangular blocks (83). The triangular block (83) is a right-angled triangle with the inclined surface facing upwards, and the outer wall of the limiting rod (82) is provided with a second spring (84) on the right-angled surface of the triangular block (83).

3. The rotary cutting cement-soil mixing pile machine capable of low-headroom operation according to claim 1, characterized in that, The limiting member (7) includes a connecting rod (71) and three collars (72), and all three collars (72) are connected to the connecting rod (71).

4. The rotary cutting cement-soil mixing pile machine capable of low-headroom operation according to claim 1, characterized in that, The storage component (6) includes a fixed box (61) disposed on the upper end of the fixed frame (2), and the fixed box (61) is provided with two sets of elastic clips (62) and has a mirror symmetrical design.

5. The rotary cutting cement-soil mixing pile machine capable of low-headroom operation according to claim 1, characterized in that, The lower end of the lifting platform (5) is provided with a drill bit (4), and the drill bit (4) includes a motor and a drill rod.

6. The rotary cutting cement-soil mixing pile machine capable of low-headroom operation according to claim 1, characterized in that, The upper end of the fixed frame (2) is provided with a driving component (12) for controlling the lifting of the lifting platform (5). The driving component (12) includes a motor and a lead screw, and the lead screw thread passes through the lifting platform (5) and the fixed frame (2) for rotational connection.

7. The rotary cutting cement-soil mixing pile machine capable of low-headroom operation according to claim 1, characterized in that, The tip of the connecting post (9) is provided with a toothed block (10), and the toothed block (10) is engaged with the previous connecting post (9); A steel cable (11) is provided between the two connecting columns (9) at their ends.

8. The rotary cutting cement-soil mixing pile machine capable of low-headroom operation according to claim 7, characterized in that, The first tooth block (10) of the connecting post (9) has a wedge (13) arranged in a circular array at the front end.

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