Deep foundation pit multifunctional rotary excavating equipment for building construction

Abstract

The utility model relates to the technical field of deep foundation pit rotary excavating, in particular to deep foundation pit multifunctional rotary excavating equipment for building construction, which comprises a pit drilling machine base and a motor frame, a driving motor is arranged in the motor frame, a rotary excavating assembly is arranged in the center of the bottom of the pit drilling machine base, and a trimming assembly is arranged on the edge of the bottom of the pit drilling machine base. The rotary excavating assembly comprises a mud inlet rotating base, the mud inlet rotating base is arranged in the center of the bottom of the pit drilling machine base, and a drill bit body is arranged at the bottom end of the mud inlet rotating base. Through the arrangement of the pit drilling machine base, the motor frame, the driving motor, the mud feeding rotating base, the drill bit body, the rotating ring base, the annular trimming rotating cutter, the sealing rubber ring, the limiting rubber ring, the rotating disc and the rotating base, the equipment can conduct multifunctional efficient rotary excavating operation of the deep foundation pit for building construction; a worker firstly places the whole pit drilling machine base at the position where a deep foundation pit needs to be excavated in a rotary mode, and then a driving motor in a motor frame is started.

Description

A multi-functional rotary drilling rig for deep foundation pits in building construction Technical Field

[0001] This utility model relates to the field of deep foundation pit technology, specifically a multi-functional rotary drilling equipment for deep foundation pits used in building construction. Background Technology

[0002] Deep foundation pits refer to projects with an excavation depth exceeding five meters, or projects with particularly complex geological conditions, surrounding environment, and underground pipelines even if the depth does not exceed five meters. Foundation pit engineering mainly includes the design and construction of foundation pit support systems and earthwork excavation. It is a highly comprehensive system engineering project that requires close cooperation between geotechnical and structural engineering technicians. The foundation pit support system is a temporary structure that is no longer needed after the underground engineering construction is completed. Rotary excavation is the main method of deep foundation pit construction.

[0003] For example, patent document CN 220566017 U discloses a mud removal device for rotary drilling of foundation pits, including a rotary drilling machine and a auger. The upper end of the rotary drilling machine is equipped with a pile connector, and the lower end is equipped with a drill bit. The lower end of the rotary drilling machine is equipped with a base, and an installation groove is provided between the base and the lower end of the rotary drilling machine. A rotary motor is symmetrically installed in the installation groove, and the output end of the rotary motor passes through the interior of the base. The auger is symmetrically installed inside the rotary drilling machine, and the lower end of each auger is connected to the output end of the rotary motor. A sleeve is fitted on the wall of the auger, and the upper end of the sleeve passes through the upper end of the rotary drilling machine. When using the mud removal device for rotary drilling of foundation pits, the drilled soil enters the interior of the rotary drilling device through the feed hole. At the same time, due to the action of the conical block, the soil can be moved to the upper part of the base. Through the cooperation between the rotary motor, the auger, and the sleeve, the soil inside can be conveniently discharged.

[0004] However, in actual use, due to its structural limitations, this structure can only perform rotary drilling operations at the center of deep foundation pits through the bottom drill bit structure. It cannot perform targeted rotary drilling operations at the edges of deep foundation pits, and the equipment cannot perform the discharge and treatment of soil inside the deep foundation pits. Therefore, it is urgent to design a multi-functional rotary drilling equipment for deep foundation pits in construction to solve the above problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a multi-functional rotary drilling equipment for deep foundation pits in building construction, so as to solve the problem mentioned in the background art that, due to the limitations of its own structure, the existing structure can only perform rotary drilling operations at the center of the deep foundation pit through the bottom drill bit structure during actual use. It cannot perform targeted rotary drilling assistance operations at the edge of the deep foundation pit, and the equipment cannot perform the operation of opening and discharging the soil inside the deep foundation pit, thus failing to meet the daily use needs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-functional rotary drilling equipment for deep foundation pits in building construction, comprising a drilling machine base, a motor frame disposed at the center of the interior of the drilling machine base, a drive motor disposed inside the motor frame, a rotary drilling assembly disposed at the center of the bottom of the drilling machine base, and a trimming assembly disposed at the bottom edge of the drilling machine base.

[0007] The rotary drilling assembly includes a mud inlet rotor, which is located at the center of the bottom of the drilling rig base, and the drill bit body is located at the bottom end of the mud inlet rotor.

[0008] The rotary drilling assembly includes a rotating ring seat, which is provided at the bottom edge of the drilling rig base.

[0009] Preferably, an annular trimming cutter is fixedly connected to the bottom end of the rotating ring seat, and a sealing rubber ring is provided between the drilling machine base and the rotating ring seat.

[0010] Preferably, the rotating ring seat is provided with a limiting rubber ring inside, and the limiting rubber ring is adapted to the mud inlet rotating seat.

[0011] Preferably, the mud inlet rotary table has guide strips on all four sides, and mud inlet grooves are evenly provided on the side of the mud inlet rotary table.

[0012] Preferably, a top cover is fitted onto the top of the drilling machine base, and a pipe valve seat is fixedly connected to the top of the top cover.

[0013] Preferably, the bottom edge of the drilling machine base is provided with a rotating disk via a drive motor, and the rotating disk is connected to a rotating ring seat.

[0014] Preferably, a rotating seat is provided at the bottom center of the drilling machine base via a drive motor, and the rotating seat is connected to the mud inlet rotating seat and the drill bit body.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This multi-functional rotary drilling rig for deep foundation pits in construction uses a drilling base, motor frame, drive motor, mud inlet rotary seat, drill bit body, rotating ring seat, annular trimming cutter, sealing ring, limiting ring, rotating disk, and rotating seat to perform efficient rotary drilling operations for deep foundation pits in construction. In actual use, the operator first places the drilling base at the location where the deep foundation pit needs to be drilled. Then, the drive motor inside the motor frame is started, causing it to drive the mud inlet rotary seat and drill bit body through the rotating seat at the bottom to perform rotary drilling operations on the ground. During the rotary drilling process, the drive motor synchronously drives the rotating ring seat to rotate through the rotating disk. The rotating ring seat, through the annular trimming cutter at the bottom, performs synchronous rotary drilling operations at the edge of the deep foundation pit, trimming the inner wall of the pit. Simultaneously, the rotating ring seat is limited by the matching limiting ring with the mud inlet rotary seat, and the rotating ring seat and drilling base are sealed and protected by a sealing ring, demonstrating the practicality of the equipment design.

[0017] This multi-functional rotary drilling rig for deep foundation pits in construction enhances overall efficiency through its drilling base, motor frame, drive motor, mud inlet rotor, guide strips, mud inlet chute, top cover, and connecting valve seat. During daily use, workers connect the mud discharge pipe to the connecting valve seat at the top of the top cover, then install the top cover over the drilling base. During deep foundation pit rotary drilling via the mud inlet rotor and drill bit, the generated mud is first guided by the four guide strips on the sides, then enters the drilling base through the mud inlet chute on the side of the mud inlet rotor, and is then continuously transported upwards along the drilling base. This achieves continuous and efficient deep foundation pit rotary drilling operations, demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0018] Figure 1 is a three-dimensional schematic diagram of the structure of this utility model;

[0019] Figure 2 is an overall schematic diagram of the drilling machine base structure of this utility model;

[0020] Figure 3 is an overall schematic diagram of the rotating ring seat structure of this utility model;

[0021] Figure 4 is an enlarged schematic diagram of the structure at point A in Figure 1 of this utility model;

[0022] Figure 5 is an enlarged schematic diagram of the structure at point B in Figure 2 of this utility model.

[0023] In the diagram: 1. Drilling machine base; 2. Motor frame; 3. Drive motor; 4. Mud inlet rotary seat; 5. Drill bit body; 6. Rotating ring seat; 7. Annular trimming rotary cutter; 8. Sealing ring; 9. Limiting ring; 10. Material guide side strip; 11. Mud inlet trough; 12. Top cover; 13. Pipe valve seat; 14. Rotating disc; 15. Rotating seat. Detailed Implementation

[0024] 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.

[0025] Please refer to Figures 1-5, which show one embodiment of this utility model:

[0026] A multi-functional rotary drilling rig for deep foundation pits in building construction includes a drilling base 1, a motor frame 2 at the center of the drilling base 1, a drive motor 3 inside the motor frame 2, a rotary drilling assembly at the center of the bottom of the drilling base 1, a trimming assembly at the bottom edge of the drilling base 1, a top cover 12 fitted on the top of the drilling base 1, a pipe valve seat 13 fixedly connected to the top of the top cover 12, a rotating disk 14 at the bottom edge of the drilling base 1 via the drive motor 3, the rotating disk 14 being connected to a rotating ring seat 6, and a rotating seat 15 at the center of the bottom of the drilling base 1 via the drive motor 3, the rotating seat 15 being connected to a mud inlet rotating seat 4 and a drill bit body 5. When the bottom of the drilling base 1 is used for multi-functional rotary drilling of deep foundation pits via the mud inlet rotating seat 4 and the drill bit body 5, the generated soil can be guided by the four-sided guide strips 10 on the side.

[0027] The rotary drilling assembly includes a mud-infeed rotary seat 4, which is located at the bottom center of the drilling rig base 1. A drill bit body 5 is located at the bottom end of the mud-infeed rotary seat 4. The rotary drilling assembly also includes a rotating ring seat 6, which is located at the bottom edge of the drilling rig base 1. An annular trimming rotary cutter 7 is fixedly connected to the bottom end of the rotating ring seat 6. A sealing ring 8 is provided between the drilling rig base 1 and the rotating ring seat 6. A limiting ring 9 is provided inside the rotating ring seat 6. The limiting ring 9 is adapted to the mud-infeed rotary seat 4. Guide strips 10 are provided on the four sides of the mud-infeed rotary seat 4. Mud-infeed grooves 11 are evenly opened on the sides of the mud-infeed rotary seat 4. The rotating ring seat 6 performs synchronous rotary drilling operations at the edge of the deep foundation pit through the annular trimming rotary cutter 7 at the bottom, and trims the inner wall of the deep foundation pit.

[0028] Working Principle: During operation, the operator first places the drilling rig base 1 at the location where a deep foundation pit needs to be excavated. Then, the drive motor 3 inside the motor frame 2 is started, causing it to drive the mud-feeding rotary seat 4 and the drill bit body 5 via the rotating seat 15 at the bottom to perform rotary excavation of the deep foundation pit. During the rotary excavation process, the drive motor 3 can synchronously drive the rotating ring seat 6 to rotate via the rotating disk 14. The rotating ring seat 6, through the annular trimming cutter 7 at the bottom, performs synchronous rotary excavation at the edge of the deep foundation pit, trimming the inner wall of the pit. Simultaneously, the rotating ring seat 6 is limited by the matching limiting rubber ring 9 with the mud-feeding rotary seat 4. The rotating ring seat 6 and the drilling rig base 1 are... The sealing protection operation is carried out by sealing ring 8. In daily use, the operator can connect the mud discharge pipe to the pipe valve seat 13 at the top of the top cover 12. The top cover 12 is then installed on the top of the drilling machine base 1. During the deep foundation pit multi-functional rotary drilling process at the bottom of the drilling machine base 1 through the mud inlet rotor 4 and the drill bit body 5, the generated mud can be guided by the four-sided guide strips 10 on the side and enter the interior of the drilling machine base 1 from the mud inlet groove 11 on the side of the mud inlet rotor 4. Then, it is continuously transported upward along the drilling machine base 1, thereby realizing continuous and efficient deep foundation pit multi-functional rotary drilling operation. The above is the complete working principle of this utility model.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-functional rotary drilling rig for deep foundation pits in building construction, comprising a drilling base (1), characterized in that: The drilling machine base (1) has a motor frame (2) at its internal center, a drive motor (3) inside the motor frame (2), a rotary drilling assembly at the bottom center of the drilling machine base (1), and a trimming assembly at the bottom edge of the drilling machine base (1). The rotary drilling assembly includes a mud inlet rotor (4), a mud inlet rotor (4) at the bottom center of the drilling machine base (1), and a drill bit body (5) at the bottom end of the mud inlet rotor (4). The rotary drilling assembly includes a rotating ring seat (6), a rotating ring seat (6) at the bottom edge of the drilling machine base (1).

2. The multi-functional rotary drilling equipment for deep foundation pits in building construction according to claim 1, characterized in that: The bottom end of the rotating ring seat (6) is fixedly connected to an annular trimming cutter (7), and a sealing ring (8) is provided between the drilling machine base (1) and the rotating ring seat (6).

3. The multi-functional rotary drilling equipment for deep foundation pits in building construction according to claim 1, characterized in that: The rotating ring seat (6) is provided with a limiting rubber ring (9) inside, which is adapted to the mud inlet rotating seat (4).

4. The multi-functional rotary drilling equipment for deep foundation pits in building construction according to claim 1, characterized in that: The mud inlet rotary table (4) has guide strips (10) on all four sides, and mud inlet grooves (11) are evenly opened on the side of the mud inlet rotary table (4).

5. The multi-functional rotary drilling equipment for deep foundation pits in building construction according to claim 1, characterized in that: The top of the drilling machine base (1) is fitted with a top cover (12), and the top of the top cover (12) is fixedly connected to a pipe valve seat (13).

6. The multi-functional rotary drilling equipment for deep foundation pits in building construction according to claim 1, characterized in that: The bottom edge of the drilling machine base (1) is provided with a rotating disk (14) via a drive motor (3), and the rotating disk (14) is connected to the rotating ring seat (6).

7. A multi-functional rotary drilling rig for deep foundation pits in building construction according to claim 1, characterized in that: The bottom center of the drilling machine base (1) is provided with a rotating seat (15) via a drive motor (3), and the rotating seat (15) is connected to the mud inlet rotating seat (4) and the drill bit body (5).

Images