CN215761567U

CN215761567U - Drilling auxiliary device of down-the-hole drill

Info

Publication number: CN215761567U
Application number: CN202122113734.9U
Authority: CN
Inventors: 赵坤; 王夏星; 张坤; 王峥; 高建强
Original assignee: China Construction Fifth Engineering Bureau Co Ltd; Huadong Building Co Ltd of China Construction Fifth Engineering Bureau Co Ltd
Current assignee: China Construction Fifth Engineering Bureau Co Ltd; Huadong Building Co Ltd of China Construction Fifth Engineering Bureau Co Ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-08
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a down-the-hole drill hole drilling auxiliary device which comprises two placing plates arranged near an external embedded hole, wherein the two placing plates are arranged oppositely, the bottom walls of the two placing plates are respectively provided with a placing plate inserted into the external embedded hole, the two placing plates are arranged oppositely, the two placing plates are respectively provided with a pouring piece used for pouring dilute cement slurry into the external embedded hole, and the two placing plates are respectively provided with a cleaning assembly used for discharging crushed slag in the external embedded hole to the outside of the embedded hole. The utility model solves the problems of hole collapse and necking during drilling of powdery clay geology in the prior art.

Description

Drilling auxiliary device of down-the-hole drill

Technical Field

The utility model relates to the technical field of auxiliary devices of down-the-hole drills, in particular to a drilling auxiliary device of a down-the-hole drill.

Background

The down-the-hole drill dry hole forming construction is widely applied to foundation pit supporting engineering with good address conditions. And under the relatively poor condition of geological conditions, if its shear strength of powder clay is low to warp greatly, can appear collapsing hole, condition such as necking down at the in-process of dry pore-forming, can't carry out the construction process of follow-up insertion steel strand wires body of rod, dry operation pore-forming construction under this kind of geological conditions often needs to dig a pre-buried hole earlier, many times pore-forming again, and must insert the stock immediately after the pore-forming and utilize the slip casting pipe to carry out the slip casting.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a down-the-hole drill hole drilling auxiliary device, which aims to solve the problems of hole collapse and necking during dry operation of a drill in silty clay geology in the prior art.

In order to achieve the purpose, the utility model provides a down-the-hole drill drilling auxiliary device which comprises two placing plates for placing near an external pre-buried hole, wherein the two placing plates are oppositely arranged, the bottom walls of the two placing plates are respectively provided with a placing plate for inserting into the external pre-buried hole, the two placing plates are oppositely arranged, the two placing plates are respectively provided with a filling piece for filling dilute cement slurry into the external pre-buried hole, and the two placing plates are respectively provided with a cleaning assembly for discharging crushed slag in the external pre-buried hole out of the pre-buried hole.

The technical scheme is adopted, and the method has the advantages that: an operator firstly places two placing plates on the ground near the opening of an external pre-buried hole and inserts the placing plates into the pre-buried hole, the two placing plates are oppositely arranged and arranged oppositely, when the down-the-hole drill needs to drill, the operator controls a drill bit of the down-the-hole drill to be inserted into the pre-buried hole for operation, dilute cement slurry is poured into the pre-buried hole through a pouring piece on the placing plates in the operation process, the dilute cement slurry poured into the pre-buried hole can play a role of protecting a wall by the slurry when a drill rod of the down-the-hole drill is spirally drilled, collapse and necking of the drill hole are prevented under the action of the slurry, meanwhile, due to the lubricating action of the cement slurry, the disturbance to the peripheral stratum in the drilling process can be effectively reduced, the influence on the peripheral environment is reduced, the safety of a foundation pit can be ensured, and the cement slurry is filled into the pouring hole through the pouring piece while the subsequent drill bit is pulled out, with concentrated water which meets the design requirement, the soil pressure balance can be well achieved, and the pore-forming quality is easy to guarantee; the arrangement of the cleaning assembly in the technology can discharge the drilled and rotated slag in the embedded hole to the outside of the hole opening when the drill bit is spirally drilled, so that the down-the-hole drill can conveniently drill, and the hole forming quality is further improved

The utility model further provides that: the filling piece comprises a hollow filling pipeline arranged on the placing plate, a plurality of filling holes communicated with the filling pipeline are formed in the outer wall of the filling pipeline, and one end of the filling pipeline is communicated to the end face of the placing plate and is provided with a feeding hole communicated with external slurry filling equipment.

The technical scheme is adopted, and the method has the advantages that: the feed inlet is communicated with external slurry filling equipment, so that an operator can transmit dilute cement slurry into the feed inlet through the external slurry filling equipment or fill concentrated cement slurry into a filling hole when a drill bit is pulled out, the filled slurry can be conveyed into a filling pipeline along the feed inlet and then is discharged into a pre-buried hole from each filling hole, and the slurry can be conveyed into the pre-buried hole during drilling operation by the aid of the arrangement of the technology, so that a slurry wall protection effect is achieved.

The utility model further provides that: two the activity of settling plate direction of height all is provided with the loose axle along settling plate both sides, the clearance subassembly includes two layer boards, one of them the loose axle of settling plate both sides is connected with the initiating terminal of two layer boards respectively, another the loose axle of settling plate both sides respectively with the end-to-end connection of two layer boards, two the layer board sets up relatively, two it all is provided with the driving piece that is used for driving the layer board and reciprocates along settling plate direction of height to place on the board.

The technical scheme is adopted, and the method has the advantages that: the driving piece drives the movable shaft to move up and down along the height direction of the placement plate, the supporting plate is ensured to move up and down along the height direction of the placement plate, the supporting plate can support floating slag in the pre-buried hole, the slag is discharged out of the pre-buried hole, and the influence of the slag on drilling operation and pore-forming quality is avoided.

The utility model further provides that: the driving piece comprises a servo cylinder arranged on the placing plate, and the output end of the servo cylinder is connected with the movable shaft.

The technical scheme is adopted, and the method has the advantages that: the servo cylinder is arranged to effectively drive the movable shaft to move, so that the supporting plate can normally support the slag.

The utility model further provides that: the placing plate is characterized in that a fixing head is arranged on the end face of the placing plate, the section of the fixing head is arranged in a T shape, and a pull rope used for being connected with an external heavy object is sleeved on the vertical portion of the fixing head.

The technical scheme is adopted, and the method has the advantages that: after the placing plate is installed, an operator connects one end of the tension rope with an external heavy object, and the other end of the tension rope is connected with the vertical part of the fixing head, so that the placing plate is prevented from inclining or collapsing when drilling operation is carried out.

Drawings

FIG. 1 is a three-dimensional view of the present invention;

fig. 2 is a front sectional view of the present invention.

Detailed Description

The utility model provides a down-the-hole drill drilling auxiliary device, which comprises two placing plates 1 for placing near an external pre-buried hole, wherein the two placing plates 1 are oppositely arranged, the bottom walls of the two placing plates 1 are respectively provided with a placing plate 2 for inserting into the external pre-buried hole, the two placing plates 2 are oppositely arranged, the two placing plates 2 are respectively provided with a filling piece for filling dilute cement slurry into the external pre-buried hole, the two placing plates 2 are respectively provided with a cleaning assembly for discharging crushed slag in the external pre-buried hole to the outside of the pre-buried hole, each filling piece comprises a filling pipeline 21 which is arranged on the placing plates 2 in a hollow mode, the outer wall of each filling pipeline 21 is provided with a plurality of filling holes 22 communicated with the filling pipeline 21, one end of each filling pipeline 21 is communicated with the end face of the placing plate 1 and is provided with a feed inlet 11 communicated with external filling equipment, two sides of the two placing plates 2 are both movably provided with a movable shaft 3 along the height direction of the placing plates 2, the cleaning component comprises two supporting plates 31, wherein the movable shafts 3 on two sides of one of the placing plates 2 are respectively connected with the starting ends of the two supporting plates 31, the movable shafts 3 on two sides of the other placing plate 2 are respectively connected with the tail ends of the two supporting plates 31, the two supporting plates 31 are oppositely arranged, driving pieces for driving the supporting plates 31 to move up and down along the height direction of the placing plate 2 are respectively arranged on the two placing plates 1, the driving piece comprises a servo cylinder 4 arranged on the placing plate 1, the output end of the servo cylinder 4 is connected with the movable shaft 3, the placing plate is characterized in that a fixing head 12 is arranged on the end face of the placing plate 1, the section of the fixing head 12 is arranged in a T shape, and a pull rope used for being connected with an external heavy object is sleeved on the vertical portion of the fixing head 12.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A down-the-hole drill auxiliary device that drills, its characterized in that: including two boards of placing that are arranged in near external pre-buried hole, two place the board and set up relatively, two place all be provided with the mounting plate that is arranged in inserting external pre-buried hole on the board diapire, two the mounting plate sets up in opposite directions, two all be provided with the piece of irritating that is arranged in pouring into the thin cement paste in the external pre-buried hole on the mounting plate, two all be provided with on the mounting plate and be arranged in discharging the disintegrating slag in the external pre-buried hole to the outer clearance subassembly of pre-buried hole.

2. A down-the-hole drill drilling aid as claimed in claim 1, wherein: the filling piece comprises a hollow filling pipeline arranged on the placing plate, a plurality of filling holes communicated with the filling pipeline are formed in the outer wall of the filling pipeline, and one end of the filling pipeline is communicated to the end face of the placing plate and is provided with a feeding hole communicated with external slurry filling equipment.

3. A down-the-hole drill drilling aid as claimed in claim 1, wherein: two the activity of settling plate direction of height all is provided with the loose axle along settling plate both sides, the clearance subassembly includes two layer boards, one of them the loose axle of settling plate both sides is connected with the initiating terminal of two layer boards respectively, another the loose axle of settling plate both sides respectively with the end-to-end connection of two layer boards, two the layer board sets up relatively, two it all is provided with the driving piece that is used for driving the layer board and reciprocates along settling plate direction of height to place on the board.

4. A down-the-hole drill drilling aid as claimed in claim 2, wherein: the driving piece comprises a servo cylinder arranged on the placing plate, and the output end of the servo cylinder is connected with the movable shaft.

5. A down-the-hole drill drilling aid as claimed in claim 1, wherein: the placing plate is characterized in that a fixing head is arranged on the end face of the placing plate, the section of the fixing head is arranged in a T shape, and a pull rope used for being connected with an external heavy object is sleeved on the vertical portion of the fixing head.