CN215860097U - Pressure regulation drilling hole washer - Google Patents

Abstract

The utility model relates to the field of drilling exploration, and particularly discloses a pressure-regulated hole washer for drilled holes, which comprises an outer barrel with a barrel bottom, wherein a barrel opening at the upper end of the outer barrel is provided with a connecting structure matched and butted with a drill rod of a drilling machine, the barrel wall is provided with a plurality of holes along the circumferential direction, the hole washer further comprises a conical platform, a plurality of hole washing brushes and a spring, the conical platform is arranged in the outer barrel, the lower end of the conical platform is supported on the barrel bottom of the outer barrel through the spring, a plurality of slide rails with the lower ends inclined towards the central line direction are circumferentially distributed on the outer wall of the conical platform, the upper end of each hole washing brush is slidably connected to the lower part of each slide rail, and the lower end of each hole washing brush extends to the barrel wall and extends into one hole at the corresponding position. The utility model can adjust the hole washer with adaptive aperture by adjusting pressure, and the hole washer is beneficial to improving the hole washing working efficiency and quickly meeting the requirements of field tests.

Description

Pressure regulation drilling hole washer

Technical Field

The utility model relates to the field of drilling exploration, in particular to a hole washing device capable of being adjusted by pressure.

Background

Hydrogeological investigation, geological investigation and hydrogeological investigation often involve on-site pumping tests or in-hole television imaging means. In order to achieve an ideal test effect, before a test is carried out after hole forming, slurry (and wall protection slurry) in a drilled hole must be cleaned, the inner wall and the bottom of the drilled hole are clean, underground water in the drilled hole is clear, and the state that the hole of a corresponding part in the drilled hole is not blocked by the slurry is achieved. This process requires the use of a drill hole washer to clean.

At present, no drilling hole washer with a special scale and widely used exists in the market, generally, after a hole is formed, a drilling machine operator is used to bind rubber on a drill rod, and after a driving drill rod of the drilling machine is connected to reach the depth (layer) needing hole washing, a power head of the drilling machine is operated to rotate or lift the drill rod up and down so as to achieve the purpose of simple hole washing. However, this method does not clean the hole or takes a long time to clean the drilled hole. In addition, in the drilling process, the drill holes are generally subjected to diameter change, the deeper the drill holes are, the more the diameter change times are, the multi-section (multi-layer) hole washing cannot be realized by binding rubber, the process is simple and lagged behind, and the effect is poor. If the drilling hole does not reach the test hole cleaning requirement, or rubber is bound for multiple times, and the hole is washed for a long time, the drilling hole is easy to collapse, the field test cannot be carried out, and finally the drilling hole is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hole washer capable of adjusting adaptive aperture by adjusting pressure.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a pressure regulation drilling hole washer, is including the urceolus that has the barrel head, and the upper end nozzle of this urceolus is equipped with the connection structure with rig drilling rod cooperation butt joint, and section of thick bamboo wall is equipped with a plurality of trompils along circumference, hole washer still includes a tapered platform, a plurality of hole washing brushes and a spring, and this tapered platform sets up in the urceolus, the lower extreme passes through the spring supports in the barrel head of urceolus, tapered platform outer wall circumference distributes has a plurality of lower extremes to the slide rail of its central line direction slope, hole washing brush upper end sliding connection is in one the lower part of slide rail, the lower extreme stretch to the section of thick bamboo wall and stretch into one of corresponding position in the trompil.

The drill rod of the drilling machine which is matched and connected with the hole washer is hollow, so that water or other cleaning liquid can be injected into the butted outer barrel of the hole washer through the hollow channel. When water or other cleaning liquid is injected, the conical platform moves downwards under the action of hydraulic pressure, the hole cleaning brush does not move downwards along with the conical platform because the lower end of the hole cleaning brush is limited by the outer barrel, and the connection point of the hole cleaning brush and the conical platform slides upwards along the sliding rail along with the downward movement of the conical platform and drives the hole cleaning brush to extend outwards. The power head of the drilling machine is controlled to rotate, the hole washing device rotates along with the power head, and holes are washed and brushed on the inner wall of the drilled holes. Meanwhile, the injected liquid is discharged from the hole washing brush detecting port on the cylinder wall to wash the inner wall of the drill hole and take away residues under the hole washing brush. The greater the pressure on the conical platform, the longer the length of the brush that extends outward, and the larger the bore diameter that can be cleaned.

When the conical platform moves downwards, the spring is compressed, and elastic potential energy is accumulated. When the hydraulic pressure acting on the conical platform is reduced after the hole is washed for a certain time, the spring restores to a balanced state to move upwards under the action of elastic potential energy, the conical platform is pushed to move upwards, the hole washing brush retracts towards the cylinder wall, and one-time hole washing is completed.

Particularly, the outer barrel of the hole washer is divided into an upper part, a middle part and a lower part, and every two parts of the outer barrel are detachably connected, for example, the three parts are matched through threaded connection. The detachable structure between the upper part and the middle part is used for observing and dismounting the conical platform, the hole washing brush and the like, and the detachable structure between the middle part and the lower part is used for observing and dismounting the spring.

The hole washing brush is slidably mounted on a sliding rail of the conical platform through a plurality of (more than two groups of) connected pulley blocks, each pulley block comprises a frame in a shape like a Chinese character 'ri' and 6 pulleys, the 6 pulleys are averagely mounted on 3 cross frames of the frame in the shape like the Chinese character 'ri', blocking pieces used for limiting the positions of the pulleys are further arranged on the cross frames, the middle parts of the cross frames at the two ends of the frame in the shape like the Chinese character 'ri' are divided into two groups of cantilevers, and the pulleys arranged on the cross frames are respectively arranged on the cantilevers;

the hole washing brush and the sliding rail are provided with T-shaped tail wings which are respectively clamped between the upper and lower rows of pulleys and the middle row of pulleys of the reversed V-shaped frame and between the middle row of pulleys and the upper row of pulleys.

The two sides of the transverse wing of the T-shaped empennage are respectively provided with a bulge, and the thickness of the bulge is larger than the gap between the two pulleys on the upper side and the lower side of the transverse wing.

The hole washing device further comprises a connecting rod, the connecting rod is arranged between two adjacent pulley blocks, external threads are arranged at two ends of the connecting rod, and two ends of the connecting rod are respectively connected with a threaded blind hole in the middle point of a middle cross frame of the frame shaped like a Chinese character 'ri' of the two pulley blocks.

Compared with the prior art, the utility model has the following remarkable effects:

the utility model can greatly improve the hole washing efficiency and the hole washing quality, can indirectly improve the success probability of a drilling site test, and can adjust the adaptive aperture during hole washing by adjusting hydraulic pressure. In addition, the utility model has the characteristics of simple structure, easy carrying, easy disassembly and convenient and flexible use.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention (not shown);

FIG. 2 is a cross-sectional view of the second preferred embodiment of the present invention (pressure application);

FIG. 3 is an elevation view of a tapered platform in accordance with a preferred embodiment of the present invention;

FIG. 4 is a bottom view of the tapered platform in the preferred embodiment of the present invention;

FIG. 5 is an enlarged view at b in FIG. 2;

FIG. 6 is a view A-A of FIG. 5;

fig. 7 is a schematic view of a connection structure between three groups of pulley blocks.

Detailed Description

The present invention will be described in further detail with reference to the following specific embodiments and the accompanying drawings.

The figure 1 shows that 1 is a standard drill rod of a drilling machine, the interior of the drill rod 1 is hollow, and the lower end of the drill rod is provided with an external thread 11. The pressure regulation drilling hole washer 2 of the embodiment is arranged below the drill rod 1, and comprises an outer cylinder 21 with a cylinder bottom, wherein an inner thread matched and butted with the drill rod 1 is arranged at a cylinder opening at the upper end of the outer cylinder 21, 4 open holes 211 are formed in the cylinder wall along the circumferential direction, the hole washer 2 further comprises a conical platform 22, 4 hole washing brushes 23 and a spring 24, the conical platform 22 is arranged in the outer cylinder 21, the lower end of the conical platform is supported at the cylinder bottom of the outer cylinder 21 through the spring 24, two ends of the spring 24 are respectively connected with the cylinder bottoms of the conical platform 22 and the outer cylinder 21, and specifically, the conical platform is hung on a hanging ring or a hanging wire arranged at corresponding positions of the cylinder bottoms of the conical platform 22 and the outer cylinder 21, four sliding rails 221 inclined towards the direction of the central line a of the lower end of the outer wall of the conical platform 22 are circumferentially distributed, the upper end of the hole washing brushes 23 are slidably connected to the lower portions of the sliding rails 221, and the lower ends extend towards the cylinder wall 21 and extend into the open holes 211 at corresponding positions.

The outer cylinder 21 of the hole washer 2 is divided into an upper part, a middle part and a lower part, which are respectively marked as 21a, 21b and 21c, and the three parts are matched with each other through thread ss connection. The detachable structure between the upper portion 21a and the middle portion 21b is used for observing and disassembling the conical platform 22, the hole washing brush 23 and the like, and the detachable structure between the middle portion 21b and the lower portion 21c is used for observing and disassembling the spring 24.

When the drill rod 1 works, water or other cleaning liquid is injected into the outer cylinder 21 of the hole washer butted with the drill rod through the hollow channel in the drill rod 1. When water or other cleaning liquid is injected, under the action of hydraulic pressure, the conical platform 22 moves downwards, the hole cleaning brush 23 does not move downwards along with the conical platform 22 because the lower end of the hole cleaning brush is limited by the outer cylinder 21, and the connection point of the hole cleaning brush 23 and the conical platform 22 slides upwards along the inclined slide rail 221 along with the downward movement of the conical platform 22, and drives the hole cleaning brush 23 to extend outwards. When the water is not filled in the washing brush, as shown in fig. 1, and the conical platform 22 is moved downward after the water is filled in the washing brush 2, the hole-washing brush 23 is extended outward obviously. Furthermore, the greater the pressure on the conical platform, the longer the length of the brush that extends outward, and the larger the bore diameter that can be cleaned. In the state shown in fig. 2, the power head of the drilling machine is controlled to rotate, the hole washer 2 rotates along with the rotation, and the hole washing brush 23 washes the inner wall of the drilled hole. At the same time, the injected liquid is discharged from the hole-washing brush opening, i.e., the opening 211, on the cylinder wall 21, and washes the inner wall of the borehole, and carries away the residue brushed by the hole-washing brush 23. While the conical platform 22 moves down, the spring 24 is compressed and elastic potential energy is accumulated. When the hydraulic pressure acting on the conical platform 22 is reduced after a certain time for hole washing, the spring 24 is restored to a balanced state and moves upwards under the action of elastic potential energy, the conical platform 22 is pushed to move upwards, and the hole washing brush 23 retracts towards the direction of the cylinder wall 21.

The hole washer can greatly improve the hole washing efficiency and the hole washing quality, can provide important technical bedding for subsequent field tests, can adjust the adaptive aperture by adjusting hydraulic pressure, and can easily cope with the cleaning work of the variable-diameter hole.

In this embodiment, the upper section of the hole washing brush 23 is horizontal, the end part is an inclined plane parallel to the slide rail 221, and the hole washing brush 23 is connected with the conical platform 22 through the inclined plane. The lower section of the hole washing brush 23 is bent downwards, and the included angle between the two sections is an obtuse angle, as shown in fig. 1 and 2.

The tapered platform 22 of the present embodiment is shown in fig. 3 and 4, and includes a top plate 222 and a bottom plate 223 disposed opposite to each other, and four ribs 224 distributed in a cross shape, wherein the four ribs 224 are connected between the top plate 222 and the bottom plate 223, and the bottom plate 223 is detachable. Each rib 224 is trapezoidal in shape, and a T-shaped tail is provided on the oblique side, which is the slide rail 221 of the tapered platform 22.

The hole washing brush 23 is connected with the slide rail 221 through 3 groups of pulley blocks 25, and the structure of the pulley block 25 is shown in fig. 5 and 6. The pulley block 25 comprises a frame 251 and 6 pulleys 252, wherein the frame 251 is in a shape of Chinese character 'ri', the 6 pulleys 252 are evenly distributed on 3 cross frames of the frame 251, blocking pieces 253 for limiting the positions of the pulleys 252 are further arranged on the cross frames, the middle parts of the cross frames at two ends of the frame 251 are divided into two groups of cantilevers 251, and the pulleys arranged on the cross frames are respectively arranged on the cantilevers.

The inclined surface of the hole washing brush 23 is also provided with a T-shaped tail 231, which is engaged with the slide rail 221 between the lower and middle rows of pulleys and between the middle and upper rows of pulleys, respectively. The two sides of the two T-shaped empennage transverse wings are respectively provided with a bulge e, and the thickness of the bulge is larger than the clearance between the two pulleys on the upper side and the lower side of the transverse wing.

The 3 groups of pulley blocks 25 are interconnected through the middle point d of the middle transverse frame of the reversed-letter-shaped frame 251, as shown in fig. 7, for the reversed-letter-shaped frame 251, only the middle transverse frames of the three groups of reversed-letter-shaped frames are drawn in the drawing, 254 is a connecting rod which is arranged between the two adjacent groups of pulley blocks 25, both ends of the connecting rod are provided with external threads, and both ends of the connecting rod are respectively connected with the threaded blind holes at the middle point d of the middle transverse frames of the two pulley blocks 25.

The pulley block structure of this structure is stable in structure and can produce good slip effect, and frictional resistance is little, and after repetitious usage, easily change. Moreover, when any one of the 3 groups of pulley blocks 25 is damaged, the pulley block can be conveniently and independently replaced.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited by the above-mentioned embodiments, and the scope of the present invention is defined by the appended claims, and various equivalents made by those skilled in the art based on the present disclosure should fall within the scope of the present invention.

Claims (5)

1. The pressure-regulated hole washer is characterized by comprising an outer barrel with a barrel bottom, wherein a connecting structure which is in matched butt joint with a drill rod of a drilling machine is arranged at a barrel opening at the upper end of the outer barrel, a plurality of holes are formed in the barrel wall along the circumferential direction, the hole washer further comprises a conical platform, a plurality of hole washing brushes and a spring, the conical platform is arranged in the outer barrel, the lower end of the conical platform is supported at the barrel bottom of the outer barrel through the spring, a plurality of sliding rails with the lower ends inclined towards the central line direction are circumferentially distributed on the outer wall of the conical platform, the upper ends of the hole washing brushes are slidably connected to the lower portions of the sliding rails, and the lower ends of the hole washing brushes extend towards the barrel wall and extend into one of the holes corresponding to the positions.

2. The hole washer according to claim 1, wherein the outer cylinder of the hole washer is divided into three parts, namely an upper part, a middle part and a lower part, and every two of the three parts are detachably connected.

3. The hole washer according to claim 2, wherein the hole washing brush is slidably mounted on the slide rail of the tapered platform by a plurality of pulley blocks connected together, the pulley blocks comprise a frame shaped like a Chinese character 'ri' and 6 pulleys, the 6 pulleys are equally divided into 3 crossbearers of the frame shaped like a Chinese character 'ri', the crossbearers are further provided with a baffle plate for limiting the position of each pulley, the middles of the crossbearers at two ends of the frame shaped like a Chinese character 'ri' are divided into two groups of cantilevers, and the pulleys arranged on the crossbearers are respectively arranged on the cantilevers;

the hole washing brush and the sliding rail are provided with T-shaped tail wings which are respectively clamped between the upper and lower rows of pulleys and the middle row of pulleys of the reversed V-shaped frame and between the middle row of pulleys and the upper row of pulleys.

4. A hole washer according to claim 3, characterized in that the T-shaped tail wing is also provided with projections on both sides, respectively, the thickness of the projections being greater than the gap between the two pulleys on the upper and lower sides of the wing.

5. A hole washer according to claim 3 or 4, characterized in that the pulley blocks are connected together by:

the hole washing device further comprises a connecting rod, the connecting rod is arranged between two adjacent pulley blocks, external threads are arranged at two ends of the connecting rod, and two ends of the connecting rod are respectively connected with a threaded blind hole in the middle point of a middle cross frame of the frame shaped like a Chinese character 'ri' of the two pulley blocks.

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