Efficient rotary excavating cast-in-situ bored pile sleeve capable of reducing resistance

Abstract

The efficient rotary excavating cast-in-situ bored pile sleeve capable of reducing resistance comprises a connecting pipe, a drilling pipe is arranged at the top of the connecting pipe, a clamping groove is formed in the top of the outer wall of the connecting pipe, an inserting groove is formed in the bottom of the inner wall of the drilling pipe, and drilling blocks are fixedly connected to the top of the drilling pipe in a circumferential array mode. Threaded holes are formed in the connecting pipe in a circumferential array mode, connecting holes are formed in the drilling pipe in a circumferential array mode, and threaded rods are in threaded connection with the interiors of the connecting holes and the interiors of the threaded holes. According to the efficient rotary excavating cast-in-situ bored pile capable of reducing resistance disclosed by the utility model, the sleeve, the threaded rod, the connecting hole and the threaded hole are matched with one another, so that the connection between the connecting pipe and the drilling pipe is more stable, deviation does not occur when larger drilling pressure is encountered, normal use of an excavating drill is ensured, the service life is prolonged, and the efficient rotary excavating cast-in-situ bored pile is simple in structure and convenient to use. And the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling piles, in particular to a high-efficiency rotary drilling bored pile sleeve capable of reducing resistance. Background Art

[0002] Rotary piles generally refer to piles constructed by rotary drilling rigs. The full name is rotary bored piles, which are referred to as rotary piles in engineering. The drilling rig first uses a barrel drill bit with a valve at the bottom to rotate and crush the rock and soil, and directly loads it into the drill bucket. The drill bucket is then lifted out of the hole by the drilling rig lifting device and the telescopic drill rod to unload the soil. This cycle is repeated, and the soil is continuously taken and unloaded until the designed depth is reached. For rock and soil layers with good cohesion, dry or clear water drilling technology can be used without mud wall protection.

[0003] After searching, a high-efficiency rotary bored pile sleeve that can reduce resistance (authorization announcement number: CN211621565U) "comprises a sleeve body, a mounting sleeve is fixedly connected to the lower end of the sleeve body, and a movable groove is provided inside the mounting sleeve, a spring is fixedly connected inside the movable groove, and a clamping block is fixedly connected to the upper end of the spring, a first sharp tooth is fixedly connected to the lower end of the clamping block, a second sharp tooth is fixedly connected to the outer side of the mounting sleeve, a mounting groove is provided inside the sleeve body, and a mounting shaft is fixedly connected inside the mounting groove, the mounting shaft is rotatably connected to a movable plate, and a circular groove is provided inside the movable plate, the circular groove is movably connected to the mounting shaft, and the movable plate is movably connected to the mounting groove through the circular groove and the mounting shaft. The high-efficiency rotary bored pile sleeve that can reduce resistance is convenient for crushing hard objects on the side, increases the overall pre-installation speed, and improves the overall pre-installation efficiency, thereby improving the overall processing efficiency".

[0004] According to the above-mentioned related technologies, the applicant believes that the above-mentioned technologies use springs to support the clamping blocks, and the clamping blocks slide inside the movable grooves. During drilling, the drill bit is subjected to greater pressure and the spring is subjected to greater force. Long-term use will cause the spring to be damaged, resulting in poor stability and a short service life. To address the above problems, we have introduced a high-efficiency rotary bored pile sleeve that can reduce resistance. Utility Model Content

[0005] The utility model discloses a high-efficiency rotary drilling cast-in-place pile sleeve capable of reducing resistance, and aims to solve the technical problems that a spring is used to support a compression block, the compression block slides in a movable groove, the drill bit is subjected to greater pressure during drilling, the spring is subjected to greater force, and long-term use may cause the spring to be damaged, resulting in poor stability and a short service life.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-efficiency rotary bored pile sleeve capable of reducing resistance comprises a connecting pipe, a drilling pipe is arranged on the top of the connecting pipe, a clamping groove is arranged on the top of the outer wall of the connecting pipe, a slot is arranged on the bottom of the inner wall of the drilling pipe, a drilling block is fixedly connected to the top of the drilling pipe in a circumferential array, threaded holes are arranged in a circumferential array inside the connecting pipe, connecting holes are arranged in a circumferential array inside the drilling pipe, and threaded rods are threadedly connected to the connecting holes and the threaded holes.

[0008] In a preferred solution, a drilling probe is fixedly connected to the top of the drilling pipe in a circular array, and the drilling probe is inclined, and the inclination angle of the drilling probe is °.

[0009] In a preferred solution, the size of the card slot is consistent with the size of the slot, and the card slot and the slot are used in conjunction with each other.

[0010] In a preferred solution, a reinforcing ridge is fixedly connected to the outer wall of the drilling pipe.

[0011] In a preferred solution, avoidance grooves are provided in a circumferential array at the top of the drilling pipe and above the connecting hole, and the avoidance grooves cooperate with the threaded rod.

[0012] In a preferred solution, the tops of the drilling blocks are inclined in the same direction, and the drilling blocks are made of hard alloy with a relatively hard texture.

[0013] The utility model provides a high-efficiency rotary bored pile sleeve capable of reducing resistance, which has the following advantages:

[0014] Firstly, the threaded rod, the connecting hole and the threaded hole cooperate with each other, which can make the connection between the connecting pipe and the drilling pipe more stable. Even when encountering a large drilling pressure, there will be no deviation, which ensures the normal use of the drilling rig and extends its service life. It has a simple structure and is highly practical.

[0015] Secondly, the avoidance groove can protect the threaded rod and prevent it from directly contacting the ground. The top of the drilling block is inclined in the same direction to reduce the resistance of drilling. The drilling block is made of hard alloy with a relatively hard texture and can drill holes in the ground with a relatively hard texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional schematic diagram of a high-efficiency rotary bored pile sleeve capable of reducing resistance.

[0017] Figure 2 The utility model is a three-dimensional schematic diagram of a high-efficiency rotary bored pile sleeve capable of reducing resistance.

[0018] Figure 3 The utility model is a three-dimensional exploded schematic diagram of a drilling head of a high-efficiency rotary bored pile sleeve capable of reducing resistance.

[0019] Figure 4 The utility model is a three-dimensional schematic diagram of a drilling head of a high-efficiency rotary bored pile sleeve capable of reducing resistance.

[0020] Figure 5 The utility model provides a three-dimensional schematic diagram of a connection pipe of a high-efficiency rotary bored pile sleeve capable of reducing resistance.

[0021] Figure 6 The utility model is a three-dimensional bottom view schematic diagram of a connection pipe of a high-efficiency rotary bored pile sleeve capable of reducing resistance.

[0022] In the attached figure: 1. connecting pipe; 2. drilling pipe; 3. slot; 4. slot; 5. connecting hole; 6. threaded hole; 7. threaded rod; 8. avoidance groove; 9. drilling block; 10. drilling head; 11. strengthening ridge. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0024] Reference Figure 1 - Figure 6 A high-efficiency rotary bored pile sleeve capable of reducing resistance comprises a connecting pipe 1, a drilling pipe 2 is arranged at the top of the connecting pipe 1, a card slot 3 is provided at the top of the outer wall of the connecting pipe 1, a slot 4 is provided at the bottom of the inner wall of the drilling pipe 2, a drilling block 9 is fixedly connected to the top of the drilling pipe 2 in a circumferential array, threaded holes 6 are provided in a circumferential array inside the connecting pipe 1, a connecting hole 5 is provided in a circumferential array inside the drilling pipe 2, and a threaded rod 7 is threadedly connected to the connecting hole 5 and the threaded hole 6. A drilling head 10 is fixedly connected to the top of the drilling pipe 2 in a circumferential array, and the drilling head 10 is inclined, and the inclination angle of the drilling head 10 is 45°. A reinforcing rib 11 is fixedly connected to the outer wall of the drilling pipe 2.

[0025] In the above technical solution, considering that a spring is used to support the pressing block, the pressing block slides inside the movable groove. During drilling, the drill bit is subjected to greater pressure, and the spring is subjected to greater force. Long-term use may cause the spring to be damaged, resulting in poor stability and a short service life. In order to solve such problems, the specific operations are as follows:

[0026] Reference Figure 1 - Figure 6 In a preferred embodiment, in actual use, the staff puts the drilling pipe 2 on the top of the connecting pipe 1, inserts the top of the connecting pipe 1 into the inside of the drilling pipe 2, and then inserts the threaded rod 7 into the inside of the connecting hole 5, rotates the threaded rod 7, and fixes the connecting pipe 1 and the drilling pipe 2 through the threaded hole 6, and then starts drilling. During the drilling process, the drilling block 9 can be used to quickly drill holes in relatively hard materials. The drilling head 10 and the reinforcing ridges 11 can be used to assist the drilling of the drilling block 9 to reduce resistance. At the same time, the threaded rod 7, the connecting hole 5 and the threaded hole 6 cooperate with each other, which can make the connection between the connecting pipe 1 and the drilling pipe 2 more stable. When encountering a large drilling pressure, there will be no deviation, which ensures the normal use of the digging drill and extends its service life. It has a simple structure and strong practicality.

[0027] Reference Figure 1 - Figure 6 In a preferred embodiment, the size of the card slot 3 is consistent with the size of the slot 4, and the card slot 3 and the slot 4 are used in conjunction with each other. The top of the drilling pipe 2 and above the connecting hole 5 are provided with avoidance grooves 8 in a circumferential array, and the avoidance grooves 8 and the threaded rod 7 are used in conjunction with each other. The top of the drilling block 9 is inclined in the same direction, and the drilling block 9 is made of a relatively hard alloy. By setting the avoidance groove 8, the threaded rod 7 can be protected to prevent the threaded rod 7 from directly contacting the ground. The top of the drilling block 9 is inclined in the same direction, which can reduce the resistance of drilling. The drilling block 9 is made of a relatively hard alloy and can drill holes in the relatively hard ground.

[0028] Working principle: In actual use, the staff will put the drilling pipe 2 on the top of the connecting pipe 1, insert the top of the connecting pipe 1 into the inside of the drilling pipe 2, and then insert the threaded rod 7 into the inside of the connecting hole 5, rotate the threaded rod 7, and fix the connecting pipe 1 and the drilling pipe 2 through the threaded hole 6, and then start drilling. During the drilling process, the drilling block 9 can be used to quickly drill holes in relatively hard materials, and the drilling head 10 and the reinforcing ridges 11 can be used to assist the drilling of the drilling block 9 to reduce resistance.

[0029] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A high-efficiency rotary bored pile sleeve capable of reducing resistance, comprising a connecting pipe (1), characterized in that: A drilling pipe (2) is provided on the top of the connecting pipe (1), a clamping groove (3) is provided on the top of the outer wall of the connecting pipe (1), a slot (4) is provided on the bottom of the inner wall of the drilling pipe (2), a drilling block (9) is fixedly connected to the top of the drilling pipe (2) in a circumferential array, threaded holes (6) are provided in a circumferential array inside the connecting pipe (1), connecting holes (5) are provided in a circumferential array inside the drilling pipe (2), and threaded rods (7) are internally threadedly connected to the connecting holes (5) and the threaded holes (6).

2. The high-efficiency rotary bored pile sleeve capable of reducing resistance according to claim 1, characterized in that: The top of the drilling pipe (2) is fixedly connected to a drilling probe (10) in a circular array, and the drilling probe (10) is arranged inclined, with the inclination angle of the drilling probe (10) being 45°.

3. The high-efficiency rotary bored pile sleeve capable of reducing resistance according to claim 1, characterized in that: The size of the card slot (3) matches the size of the slot (4), and the card slot (3) and the slot (4) are used in conjunction with each other.

4. The high-efficiency rotary bored pile sleeve capable of reducing resistance according to claim 1, characterized in that: A reinforcing ridge (11) is fixedly connected to the outer wall of the drilling pipe (2).

5. The high-efficiency rotary bored pile sleeve capable of reducing resistance according to claim 1, characterized in that: Avoidance grooves (8) are provided in a circumferential array at the top of the drilling pipe (2) and above the connecting hole (5); the avoidance grooves (8) and the threaded rod (7) are used in conjunction with each other.

6. The high-efficiency rotary bored pile sleeve capable of reducing resistance according to claim 1, characterized in that: The tops of the drilling blocks (9) are inclined in the same direction, and the drilling blocks (9) are made of hard alloy with a relatively hard texture.

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