CN213711021U

CN213711021U - Mud dado bored concrete pile construction drill bit

Info

Publication number: CN213711021U
Application number: CN202022104545.0U
Authority: CN
Inventors: 李沐春; 魏威; 唐睿辰; 陈颖; 勾元春; 张安臣
Original assignee: Shatuo Power Station Guizhou Wujiang Water Power Development Co
Current assignee: Shatuo Power Station Guizhou Wujiang Water Power Development Co
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-07-16
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a mud dado bored concrete pile construction drill bit, including drilling part and reposition of redundant personnel part, its drilling part includes the axis body subassembly to and set up the cutting assembly around the axis body subassembly, the reposition of redundant personnel part sets up inside the axis body subassembly, including quenching and tempering subassembly and fluid matter subassembly. The utility model provides a built-in reposition of redundant personnel part of mud dado bored concrete pile construction drill bit, realize pouring the reposition of redundant personnel effect of the water in the main shaft, divide into direct current mode and side flow mode two kinds through quenching and tempering subassembly and fluid subassembly, open the direct current mode during normal drilling, make rivers vertical downwards, be favorable to improving the pore-forming drilling speed, thereby construction efficiency has been improved, open the side flow mode when needs wash the pile head, rivers flow from the delivery port of lateral wall this moment, in order to avoid vertical rivers to cause destruction to the pile head, this device simple structure, and convenient to process, the cost is lower, construction efficiency has been improved effectively.

Description

Mud dado bored concrete pile construction drill bit

Technical Field

The utility model relates to a drilling technical field, especially a mud dado bored concrete pile construction drill bit.

Background

The mud dado drilling bored concrete pile is a pile which is formed by slowly drilling under the mud dado condition through a pile machine, taking out drilling slag by using mud, protecting a hole wall from collapse, and replacing the mud by using an underwater concrete pouring method after hole forming.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

Therefore, the utility model discloses the problem that will solve lies in how to wash the drill bit in the work progress.

In order to solve the technical problem, the utility model provides a following technical scheme: a drill bit for constructing a slurry retaining wall cast-in-place pile comprises,

the drilling component comprises a shaft body assembly and a cutting assembly arranged around the shaft body assembly;

the flow distribution component is arranged inside the shaft body component and comprises a conditioning component and a fluid component.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the shaft body subassembly includes the main shaft, the main shaft top is equipped with the water inlet, the middle part symmetry of main shaft lateral wall is equipped with the delivery port.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the flow distribution component is arranged in a main shaft in the shaft body assembly, the conditioning assembly comprises a first conditioning plate and a second conditioning plate, and the fluid assembly comprises a first channel and a second channel.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the first quenching and tempering board is arranged above the second quenching and tempering board and is attached to the second quenching and tempering board, the first quenching and tempering board comprises a pair of symmetrical fan-shaped through holes, the fan-shaped through holes are arranged in the same direction of the central line of the fan-shaped through holes and are arranged in the outer side of the fan-shaped through holes, the second quenching and tempering board comprises a pair of symmetrical fan-shaped through holes, and the fan-shaped through holes are arranged in the outer side of the fan-shaped through holes and are provided with a pair of symmetrical circular through holes in the vertical direction of the central line of the fan-shaped through holes.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the fluid component is communicated with the second tempering plate, the lower part of the fan-shaped through hole is communicated with the first channel, an outlet of the fan-shaped through hole is arranged at the bottom of the main shaft, an opening of the second channel is the circular through hole in the second tempering plate, and the outlet of the second channel is a pipeline port.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: an adjusting rod is fixedly arranged in the middle of the upper surface of the first modulation plate and is perpendicular to the first modulation plate, and the length of the adjusting rod extends to the outside of the water inlet.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the cutting assembly comprises a plurality of side wings which are distributed on the outer wall of the main shaft at equal intervals by taking the main shaft as the center, a plurality of drilling teeth are distributed on the side wings at equal intervals, and annular stabilizers are arranged at the tail parts of the side wings.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the annular stabilizer is arranged on the outer side of the main shaft, one end of the side wing is fixed on the lower portion of the main shaft, the other end of the side wing is fixedly connected to the upper portion of the side wall of the main shaft through the fixing wing, and the main shaft, the side wing and the fixing wing form a triangular fixing support.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the drill bit is arranged at the bottom of the main shaft and is a conical drill bit consisting of three drill cutters.

As an optimal scheme of mud dado bored concrete pile construction drill bit, wherein: the drill bit is densely provided with sawteeth.

The utility model discloses beneficial effect does: the utility model provides a built-in reposition of redundant personnel part of mud dado bored concrete pile construction drill bit, realize pouring the reposition of redundant personnel effect of the water in the main shaft, divide into direct current mode and side flow mode two kinds through quenching and tempering subassembly and fluid subassembly, open the direct current mode during normal drilling, make rivers vertical downwards, be favorable to improving the pore-forming drilling speed, thereby construction efficiency has been improved, open the side flow mode when needs wash the pile head, rivers flow from the delivery port of lateral wall this moment, in order to avoid vertical rivers to cause destruction to the pile head, this device simple structure, and convenient to process, the cost is lower, construction efficiency has been improved effectively.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a structural view of a drill bit for constructing a mud-wall cast-in-place pile.

Fig. 2 is an exploded view of the inside of the main shaft of the drill bit for constructing the mud-wall grouting pile.

Fig. 3 is a block diagram of a side-stream pattern of a mud saver pile construction bit.

Fig. 4 is a block diagram of a direct current mode of a mud saver pile construction drill bit.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 2, in order to provide a first embodiment of the present invention, the embodiment provides a drill bit for constructing a mud-protecting cast-in-place pile, the drill bit for constructing a mud-protecting cast-in-place pile comprises a drilling component 100 and a diversion component 200, wherein the drilling component 100 comprises a shaft body component 101 and a cutting component 102 arranged around the shaft body component 101;

the flow dividing member 200 is disposed inside the shaft assembly 101, and includes a conditioning assembly 201 and a fluid assembly 202.

Based on the above, in the construction process of the slurry retaining wall bored pile, the drilling component 100 is used for drilling holes, the flow distribution component 200 is used for cleaning the pile head, the drilling machine is in place after drilling positioning and site leveling, the drilling machine is started after checking that the drilling position and the verticality of the drill bit are correct, slurry is introduced, the drilling is started, the drilling speed is determined according to the field condition, after concrete pouring is finished, the water flow direction is adjusted through the conditioning component 201 and the fluid component 202, so that water flows are sprayed out in the horizontal direction, and the flushing effect is achieved through rotary stirring of the drill bit and spraying of the water flow.

Example 2

Referring to fig. 1 to 4, in order to implement the second embodiment of the present invention, it is different from the first embodiment: the shaft body assembly 101 comprises a main shaft 101a, the main shaft 101a is cylindrical, the interior of the main shaft 101a is hollow, a water inlet 101b is formed in the top of the main shaft 101a, water outlets 101a-1 are symmetrically formed in the middle of the side wall of the main shaft 101a, water flows enter from the water inlet 101b in the construction process, and when the water flows are sprayed from the water outlets 101a-1, the spraying direction of the water flows is horizontal.

Specifically, the flow dividing member 200 is disposed in the main shaft 101a of the shaft assembly 101, the conditioner assembly 201 includes a first conditioner plate 201a and a second conditioner plate 201b, and the fluid assembly 202 includes a first passage 202a and a second passage 202 b.

The first and

second damper plates

201 and 201b are diametrically fitted to the inner diameter of the main shaft 101a, the outer wall of the second damper plate 201b is fixedly fitted to the inner wall of the main shaft 101a, and the first and

second passages

202a and 202b are fitted to the second damper plate 201 b.

Preferably, the first modulator board 201a is disposed above the second modulator board 201b and attached to the second modulator board 201b, the first modulator board 201a includes a pair of symmetrically disposed fan-shaped through holes 201a-1, a pair of symmetrically disposed circular through holes 201a-2 are disposed outside the fan-shaped through holes 201a-1 in the same direction as the center line of the fan-shaped through holes 201a-1, the second modulator board 201b includes a pair of symmetrically disposed fan-shaped through holes 201a-1, and a pair of symmetrically disposed circular through holes 201a-2 are disposed outside the fan-shaped through holes 201a-1 and perpendicular to the center line of the fan-shaped through holes 201a-1

The outer wall of the first modulation plate 201a is attached to the inner wall of the main shaft 101a and can rotate in the main shaft 101a, the shapes of the fan-shaped through holes 201a-1 on the first modulation plate 201a and the second modulation plate 201b are consistent, when the drill bit is in a direct current mode, the fan-shaped through holes 201a-1 are overlapped and respectively arranged on the first modulation plate 201a and the second modulation plate 201b, and the circular through holes 201a-2 on the outer sides of the fan-shaped through holes 201a-1 are distributed in a staggered mode, so that the fan-shaped through holes 201a-1 are in an open state at the moment, and the circular through holes 201a-2 are in a closed state; when the drill bit is in the side-flow mode, the fan-shaped vent holes 201a-1 of the first and

second plates

201a, 201b are alternately arranged, and the circular through holes 201a-2 are stacked, so that the fan-shaped through holes 201a-1 are closed and the circular through holes 201a-2 are opened.

Further, the fluid component 202 is communicated with a second modulation plate 201b, the first channel 202a is communicated below the fan-shaped through hole 201a-1, the outlet is arranged at the bottom of the main shaft 101a, the opening of the second channel 202b is a circular through hole 201a-2 on the second modulation plate 201b, and the outlet is a pipeline port 202 b-1.

The cross section of the first channel 202a is matched with the shape of the fan-shaped through hole 201a-1, the cross section of the second channel 202b is an L-shaped channel, the cross section of the second channel is matched with the shape of the circular through hole 201a-2, when the drill bit is in a direct-flow mode, water flows into the first channel 202a through the fan-shaped through hole 201a-1 from the water inlet 101b, and then flows out in a vertical downward spraying mode, when the drill bit is in a side-flow mode, water flows into the circular through hole 201a-2 from the water inlet 101b, passes through the L-shaped second channel 202b, and flows to the water outlet 101a-1 which is arranged on the side wall of the main shaft 101a and is communicated with the pipe port 202 b-.

An adjusting rod 201a-3 is fixedly arranged in the middle of the upper surface of the first modulation plate 201a, the adjusting rod 201a-3 is perpendicular to the first modulation plate 201a, and the length of the adjusting rod 201a-3 extends to the outside of the water inlet 101 b.

The adjusting rod 201a-3 is a cylindrical long rod, is fixed on the upper surface of the first modulator board 201a and is arranged at the center of the symmetrical fan-shaped through hole 201a-1, the circle center of the cross section of the adjusting rod 201a-3 coincides with the circle center of the first modulator board 201a, and the length of the adjusting rod is higher than that of the water inlet 101b, namely, a constructor can change the position of the first modulator board 201a by rotating the adjusting rod 201a-3, namely, the direct current mode and the side flow mode of the drill bit can be adjusted by rotating the adjusting rod 201a-3, the operation is convenient and fast, the structure is simple, the cost is low, and when the direct current mode is adopted, water flow is vertically sprayed downwards, the drilling speed of a formed hole is favorably improved, the verticality of the drill bit in the drilling process; when the side flow mode, can be used to clean the pile head, rivers spout from main shaft 101a lateral wall level, have avoided vertical rivers to produce the destruction to the pile head promptly, have played certain washing effect to the pile head through the rotation of drill bit and the injection of rivers again, do benefit to constructor's operation.

Specifically, the cutting assembly 102 includes a plurality of flanks 102a centered on the main shaft 101a and distributed on the outer wall of the main shaft 101a at equal intervals, a plurality of drill teeth 102b distributed on the flanks 102a at equal intervals, and an annular stabilizer 102c disposed at the tail of the flanks 102 a.

Four side wings 102a are selected and arranged on the outer side of the main shaft 101a in a cross shape at equal intervals, the side wings 102a facilitate discharging of sand and soil in the construction process, certain drilling cutting force is further achieved, a plurality of drill teeth 102b are arranged on the side wings 102a, the drill teeth 102b are distributed at equal intervals, drilling of a drill bit is facilitated, and therefore construction efficiency is effectively improved.

The annular stabilizer 102c is disposed outside the main shaft 101a, one end of the wing 102a is fixed to the lower portion of the main shaft 101a, and the other end is fixed to the upper portion of the sidewall of the main shaft 101a via the fixed wing 102d, and the main shaft 101a, the wing 102a, and the fixed wing 102d form a triangular fixed support.

The annular stabilizer 102c is used for fixedly supporting the side wing 102a, the diameter of the annular stabilizer 102c is larger than that of the main shaft 101a, namely, the included angle between the side wing 102d and the main shaft 101a is smaller than 90 degrees, the fixed wing 102d is arranged in the annular stabilizer 102c, one end of the fixed wing is fixed to the main shaft 101a, the other end of the fixed wing is fixed to the annular stabilizer 102c and the side wing 102a, namely, the included angle between the fixed wing 102d and the main shaft 101a is 90 degrees, so that the main shaft 101a, the side wing 102a and the fixed wing 102d form a triangular fixed support, and the triangle has stability, so that the drill bit is more stable, firm and pressure-resistant, the service life of the drill bit is.

The bottom of the main shaft 101a is provided with a drill point 101a-2, the drill point 101a-2 is a conical drill point 101a-2 consisting of three drill bits 101a-2a, and the drill bits 101a-2a are densely distributed with sawteeth.

One end of the drill bit 101a-2a is fixed on the circumferential edge of the main shaft 101a, the other end is fixed below the main shaft 101a and intersects with the central shaft extension point of the main shaft 101a, so that the drill bit 101a-2 is conical, and the drill bit 101a-2a is densely distributed with sawteeth, thereby effectively increasing the drilling force of the drill bit 101a-2 in the construction process and improving the construction efficiency.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a mud dado bored concrete pile construction drill bit which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a drilling component (100) comprising a shaft assembly (101), and a cutting assembly (102) disposed about the shaft assembly (101);

the flow dividing component (200) is arranged in the shaft body assembly (101) and comprises a conditioning assembly (201) and a fluid assembly (202);

the flow dividing component (200) is arranged in a main shaft (101a) in the shaft body assembly (101), the conditioning assembly (201) comprises a first conditioning plate (201a) and a second conditioning plate (201b), and the fluid assembly (202) comprises a first channel (202a) and a second channel (202 b);

the first modulation plate (201a) is arranged above the second modulation plate (201b) and attached to the second modulation plate (201b), the first modulation plate (201a) comprises a pair of symmetrically arranged fan-shaped through holes (201a-1), a pair of symmetrically arranged circular through holes (201a-2) are arranged in the same direction with the center line of the fan-shaped through holes (201a-1) and on the outer side of the fan-shaped through holes (201a-1), the second modulation plate (201b) comprises a pair of symmetrically arranged fan-shaped through holes (201a-1), and a pair of symmetrically arranged circular through holes (201a-2) are arranged on the outer side of the fan-shaped through holes (201a-1) and in the direction perpendicular to the center line of the fan-shaped through holes (201 a-1).

2. The mud retaining wall cast-in-place pile construction drill bit of claim 1, wherein: the shaft body assembly (101) comprises a main shaft (101a), a water inlet (101b) is formed in the top of the main shaft (101a), and water outlets (101a-1) are symmetrically formed in the middle of the side wall of the main shaft (101 a).

3. The mud retaining wall cast-in-place pile construction drill bit of claim 2, wherein: the fluid component (202) is communicated with the second modulation plate (201b), the first channel (202a) is communicated below the fan-shaped through hole (201a-1), the outlet is arranged at the bottom of the spindle (101a), the opening of the second channel (202b) is the circular through hole (201a-2) on the second modulation plate (201b), and the outlet is a pipeline port (202 b-1).

4. The mud retaining wall cast-in-place pile construction drill bit of claim 3, wherein: an adjusting rod (201a-3) is fixedly arranged in the middle of the upper surface of the first modulation plate (201a), the adjusting rod (201a-3) is perpendicular to the first modulation plate (201a), and the length of the adjusting rod (201a-3) extends to the outside of the water inlet (101 b).

5. The mud retaining wall cast-in-place pile construction drill bit of claim 3 or 4, wherein: the cutting assembly (102) comprises a plurality of side wings (102a) which are distributed on the outer wall of the main shaft (101a) at equal intervals by taking the main shaft (101a) as a center, a plurality of drilling teeth (102b) are distributed on the side wings (102a) at equal intervals, and annular stabilizers (102c) are arranged at the tail parts of the side wings (102 a).

6. The mud retaining wall cast-in-place pile construction drill bit of claim 5, wherein: the annular stabilizer (102c) is arranged on the outer side of the main shaft (101a), one end of the side wing (102a) is fixed at the lower part of the main shaft (101a), the other end of the side wing is fixedly connected to the upper part of the side wall of the main shaft (101a) through a fixed wing (102d), and the main shaft (101a), the side wing (102a) and the fixed wing (102d) form a triangular fixed support.

7. The mud retaining wall cast-in-place pile construction drill bit of claim 6, wherein: the bottom of the main shaft (101a) is provided with a drill bit (101a-2), and the drill bit (101a-2) is a conical drill bit (101a-2) consisting of three drill bits (101a-2 a).

8. The mud retaining wall cast-in-place pile construction drill bit of claim 7, wherein: the drill (101a-2a) is densely provided with sawteeth.