Deep hole curtain grouting drilling hole depth measuring device

Abstract

The utility model discloses a deep hole curtain grouting drilling hole depth measuring device, which belongs to the technical field of curtain grouting drilling and comprises a drilling machine. The movable hole depth measuring assembly comprises U-shaped movable bases installed on the two installation rails in a sliding mode, a U-shaped supporting frame rod welded between the top faces of the two U-shaped movable bases, a winding roller rotationally installed on the upper portion of the U-shaped supporting frame rod, a positioning pipe fixedly installed between the two U-shaped movable bases and a measuring balance weight pipe inserted into the positioning pipe. A measuring rope is wound on the peripheral side of the winding roller and connected with the top end of the measuring counterweight pipe, a driving motor is arranged in the detachable mounting sleeve, an output shaft of the driving motor is fixedly connected with a connecting rod, and the connecting rod extends to the outer side of the bottom end of the detachable mounting sleeve and is symmetrically welded with cleaning blade plates. According to the utility model, the automatic cleaning function effectively solves the problem of measurement interruption caused by blockage of broken stone chips in the traditional measurement method, and the overall working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to curtain grouting drilling technical field especially, it is a deep hole curtain grouting drilling hole depth measuring device. BACKGROUND

[0002] In water conservancy and hydropower engineering construction, deep hole curtain grouting is a key anti-seepage technology. This technology is mainly used to prevent groundwater from seeping into the dam body or foundation structure, ensuring the stability of the dam body and surrounding geological structure. Deep hole curtain grouting drills deep holes at the dam foundation or abutment and injects cement slurry or other grouting materials to form an effective anti-seepage barrier (i.e. "curtain"), thereby enhancing the durability and safety of the entire water conservancy project.

[0003] With the continuous expansion of water conservancy and hydropower engineering scale, the requirement for dam body anti-seepage performance is also getting higher and higher. Traditional shallow grouting method has been unable to meet the needs of modern large-scale water conservancy projects, therefore, deep hole curtain grouting technology has emerged as the times require. This technology is usually used to treat cracks, karst caves and faults in deep geological structure, ensuring good anti-seepage performance of the dam body and its foundation.

[0004] During the process of removing the drill pipe after deep hole drilling, the friction between the drill pipe and the hole wall may generate a large amount of stone chips or protruding soil blocks. When the hole depth needs to be measured, these stone chips or soil blocks are easy to accumulate or block the descent of the measuring tube. Traditional measuring equipment often does not have an effective cleaning structure. Once blocked, work has to be suspended, and the equipment has to be manually cleaned or replaced. Each time the equipment is blocked, work has to be suspended, and the equipment has to be cleaned or replaced, which seriously affects the construction progress. At the same time, frequent manual cleaning operations increase the risk of personnel entering dangerous areas, especially in deep hole drilling environment, there may be toxic gases or collapse risk, which reduces the measuring efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a deep hole curtain grouting drilling hole depth measuring device to solve the problems raised in the background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A kind of deep hole curtain grouting borehole depth measuring device, including drilling machine, the lower part of the drilling machine is symmetrically provided with two installation tracks, the drilling end of the drilling machine is connected with drill rod, mobile hole depth measuring assembly is arranged on the side close to the drill rod and located installation track, the mobile hole depth measuring assembly includes inverted U-shaped mobile base that is symmetrically slidably installed on two installation tracks, inverted U-shaped support frame rod that is welded between the top surface of two U-shaped mobile base, winding roller that is rotatably installed on the upper portion of U-shaped support frame rod, positioning pipe that is fixedly installed between two U-shaped mobile base and measuring counterweight pipe that is inserted in positioning pipe, the circumference of the winding roller is wound with measuring rope, the free end of the measuring rope is connected with the top end of the measuring counterweight pipe, so that the winding roller in rotating state unwinds measuring rope, so that the measuring counterweight pipe drops to borehole due to self weight through positioning pipe, the bottom end of the measuring counterweight pipe is provided with detachable mounting sleeve, the detachable mounting sleeve has a drive motor, the output shaft of the drive motor is fixedly connected with connecting rod, the connecting rod extends to the outside of the bottom end of detachable mounting sleeve and is symmetrically welded with cleaning vane.

[0007] Preferably, the top end of the detachable mounting sleeve is integrally connected with an inserted inner tube, and the bottom end of the measuring counterweight pipe is provided with an internally threaded counterbore on the lateral wall thereof, the inserted inner tube is inserted into the measuring counterweight pipe, and the internally threaded counterbore is connected to the inserted inner tube through a locking screw.

[0008] Preferably, the drive motor is arranged in the lower portion of the inner cavity of the detachable mounting sleeve, and the tail end of the drive motor is provided with a partition support disc, and a storage battery is detachably mounted on the partition support disc above the upper portion of the inner cavity of the detachable mounting sleeve.

[0009] Preferably, the upper and lower sides of the partition support disc are both bonded with silica gel damping pads, and the two silica gel damping pads are respectively elastically abutted with the drive motor and the storage battery.

[0010] Preferably, the top end of the measuring counterweight pipe is fixedly provided with a lifting ring, one end of the measuring rope away from the winding roller is fixedly connected with the lifting ring, and a communication cable is also wound on the lifting ring, one end of the communication cable extends into the measuring counterweight pipe and the detachable mounting sleeve to be connected with the drive motor, and the other end of the communication cable extends to an external distribution box along the measuring rope.

[0011] Preferably, the top portion of each of the two U-shaped mobile bases is welded with a support frame rod on the opposite side, and the opposite ends of the two support frame rods are symmetrically welded on the lateral wall of the positioning pipe.

[0012] Preferably, the both ends of the winding roller are fixedly installed with connecting rotating rods, the opposite ends of the two connecting rotating rods are in interference fit with sealing bearings, and the two sealing bearings are fixedly embedded on the two side inner walls of the U-shaped support frame rod.

[0013] Preferably, a servo motor is fixedly installed on the side outer wall of the U-shaped support frame rod, and the output shaft of the servo motor penetrates into the U-shaped support frame rod and is fixedly connected with the free end of one of the connecting rotating rods.

[0014] Preferably, the inner top wall of each U-shaped movable base is symmetrically installed with two movable wheels, and the movable wheels are provided with manual locking sheets.

[0015] Preferably, the drilling end of the drilling machine is provided with a mounting head, a main shaft member penetrates through the mounting head in the longitudinal direction, and the bottom end of the main shaft member is fixedly connected with a drill rod.

[0016] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0017] The deep hole curtain grouting drilling hole depth measuring device can automatically clean the blockage when the measuring weight pipe or detachable mounting sleeve encounters the blockage of gravel chips, effectively solves the problem of measurement interruption caused by the blockage of gravel chips in the traditional measurement method, ensures the continuity and integrity of the measurement process, and improves the overall work efficiency.

[0018] The servo motor drives the winding roller to rotate, the unwinding measuring rope is used to make the measuring weight pipe drop into the drilling hole due to gravity, the scale line is arranged on the measuring rope, the hole depth is determined by observing the position change of the scale line, the scale line on the measuring rope can accurately reflect the hole depth, the measurement accuracy is improved, the error caused by human factors is reduced, the servo motor drives the winding roller to automatically unwind and wind the measuring rope, manual intervention is not needed, the automatic operation greatly shortens the measurement time, improves the work efficiency, and is particularly obvious in the deep hole measurement process. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the drawings without creating creative labor.

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2The utility model discloses a mobile hole depth measuring assembly's structure schematic drawing.

[0022] Figure 3 The utility model discloses the split structure schematic drawing of measuring counterweight pipe and detachable mounting sleeve.

[0023] Figure 4 The utility model discloses the split structure schematic drawing of drive motor and battery.

[0024] Figure 5 The utility model discloses the split structure schematic drawing of mobile wheel.

[0025] Mark explanation:

[0026] In the drawing: 1, drilling machine;2, installation head;3, main shaft spare;4, drill rod;5, mobile hole depth measuring assembly;6, U type support frame pole;7, U type mobile base;8, installation rail;9, servo motor;10, winding roller;11, measuring rope;12, sealed bearing;13, connecting rotary lever;14, support frame pole;15, positioning pipe;16, measuring counterweight pipe;17, detachable mounting sleeve;18, internal thread counterbore;19, lifting ring;20, communication cable;21, locking screw;22, plug-in inner tube;23, cleaning vane;24, drive motor;25, battery;26, separate support disc;27, silica gel shock pad;28, connecting rod;29, mobile wheel. Specific implementation

[0027] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0028] Unless the direction indicated by the single definition is defined, the directions such as up, down, left, right, front, back, inside and outside involved in this paper are based on the directions such as up, down, left, right, front, back, inside and outside in the drawing of the utility model, which is explained here.

[0029] The embodiment provides a kind of Figures 1 to 5The device for measuring the depth of a deep-hole curtain grouting drilling hole comprises a drilling machine 1, two installation rails 8 symmetrically arranged below the drilling machine 1, a drill rod 4 connected to a drilling end of the drilling machine 1, a movable hole depth measuring assembly 5 arranged on one side close to the drill rod 4 and on the installation rails 8, the movable hole depth measuring assembly 5 comprising two inverted U-shaped movable bases 7 symmetrically and slidably arranged on the two installation rails 8, an inverted U-shaped support frame rod 6 welded between top surfaces of the two U-shaped movable bases 7, a winding roller 10 rotatably arranged on an upper portion of the U-shaped support frame rod 6, a positioning pipe 15 fixedly arranged between the two U-shaped movable bases 7, and a measuring weight pipe 16 inserted into the positioning pipe 15, a measuring rope 11 wound around a circumferential side of the winding roller 10, a free end of the measuring rope 11 connected to a top end of the measuring weight pipe 16, so that the winding roller 10 in a rotating state unwinds the measuring rope 11, and the measuring weight pipe 16 is lowered into the drilling hole due to gravity, a detachable mounting sleeve 17 arranged at a bottom end of the measuring weight pipe 16, the detachable mounting sleeve 17 having a driving motor 24, an output shaft of the driving motor 24 fixedly connected to a connecting rod 28, the connecting rod 28 extending to an outside of the bottom end of the detachable mounting sleeve 17 and symmetrically welded with cleaning blades 23. When the measuring weight pipe 16 and the detachable mounting sleeve 17 are lowered into the drilling hole, the depth of the drilling hole is obtained by unwinding the length of the measuring rope 11 as the measuring weight pipe 16 and the detachable mounting sleeve 17 are lowered, a scale line is arranged on the measuring rope 11, when the detachable mounting sleeve 17 is blocked in the lowering path by the stone debris of the hole wall during the lowering process of the detachable mounting sleeve 17 in the drilling hole, the measuring weight pipe 16 and the detachable mounting sleeve 17 cannot continue to be lowered, at this time, an operator starts the driving motor 24 through an external remote controller, the driving motor 24 drives the cleaning blades 23 to rotate, so that the rotating cleaning blades 23 can clean the blocked stones, thereby helping the continuous lowering of the detachable mounting sleeve 17 and the measuring weight pipe 16, and thereby helping to improve the measuring efficiency. The winding roller 10 unwinds the measuring rope 11 driven by the servo motor 9, so that the measuring weight pipe 16 is lowered into the drilling hole due to gravity, and the scale line on the measuring rope 11 is used to read the hole depth, when the blockage is encountered, the driving motor 24 is started to drive the cleaning blades 23 to rotate and remove the stone debris, so as to ensure the smooth lowering of the measuring weight pipe 16, realize the automatic hole depth measurement, improve the measuring accuracy and efficiency, and effectively solve the problem of measurement interruption caused by the blockage of the stone debris, and improve the overall work efficiency.

[0030] In this embodiment, the top end of the detachable mounting sleeve 17 is integrally connected with a plug-in inner tube 22, the bottom end of the measuring weight tube 16 is provided with an inner thread counterbore 18 transversely and outwardly, the plug-in inner tube 22 is plugged into the measuring weight tube 16, the inner thread counterbore 18 is connected with the plug-in inner tube 22 through the locking screw 21, and the detachable mounting sleeve 17 is locked together with the measuring weight tube 16. The design of the plug-in inner tube 22 and the inner thread counterbore 18 facilitates the quick disassembly and assembly of the detachable mounting sleeve 17, ensures the firm connection through the locking screw 21, improves the maintainability and usability of the equipment, facilitates the replacement or maintenance of the detachable mounting sleeve 17, and ensures the stability of the connection through the locking screw 21 to prevent loosening or falling off during use.

[0031] In this embodiment, the driving motor 24 is arranged at the lower part of the inner cavity of the detachable mounting sleeve 17, the tail end of the driving motor 24 is provided with a partition support disc 26, and the battery 25 is detachably mounted above the partition support disc 26 and at the upper part of the inner cavity of the detachable mounting sleeve 17. The driving motor 24 provides power to drive the cleaning blade 23, the partition support disc 26 separates the driving motor 24 from the battery 25 to avoid mutual vibration, the partition support disc 26 ensures the stability of the internal structure, prevents the shaking between the driving motor 24 and the battery 25, improves the buffering stability, and the detachable design of the battery 25 facilitates replacement and maintenance.

[0032] In this embodiment, the silica gel shock-absorbing pad 27 has good shock-absorbing performance, can absorb vibration and reduce impact force transmission, reduces the influence of vibration on the driving motor 24 and the battery 25, prolongs the service life of the equipment, improves the stability and reliability of the equipment operation, and reduces the faults caused by vibration. The upper and lower sides of the partition support disc 26 are both bonded with the silica gel shock-absorbing pad 27, and the two silica gel shock-absorbing pads 27 are respectively elastically abutted with the driving motor 24 and the battery 25.

[0033] In this embodiment, the lifting ring 19 serves as a fixed point to ensure the firm and reliable connection of the measuring rope 11 and the communication cable 20, the communication cable 20 remotely opens and closes the driving motor 24, the design of the lifting ring 19 provides a stable fixed point to ensure that the measuring rope 11 and the communication cable 20 will not loosen or break, the top end of the measuring weight tube 16 is fixedly installed with the lifting ring 19, one end of the measuring rope 11 away from the winding roller 10 is fixedly connected with the lifting ring 19, and one communication cable 20 is wound on the lifting ring 19. One end of the communication cable 20 extends into the measuring weight tube 16 and the detachable mounting sleeve 17 to be connected with the driving motor 24, and the other end of the communication cable 20 extends along the measuring rope 11 to an external distribution box.

[0034] The support frame rod 14 fixes the positioning pipe 15 in this embodiment, ensures that the measuring weight pipe 16 and the detachable mounting sleeve 17 can be vertically lowered without deviation, provides a stable support structure, ensures accuracy during measurement, prevents the measuring weight pipe 16 and the detachable mounting sleeve 17 from deviating or jamming during the lowering process, and improves measurement accuracy. The two U-shaped movable bases 7 are each welded with a support frame rod 14 on the opposite side of the top, and the two support frame rods 14 are each symmetrically welded on the outer wall of the positioning pipe 15. This allows the support frame rod 14 to be fixed and erected on the positioning pipe 15, and the measuring weight pipe 16 and the detachable mounting sleeve 17 as well as the measuring rope 11 can pass through the positioning pipe 15 and be lowered into the hole, thereby achieving the function of lowering and positioning, preventing the measuring weight pipe 16 and the detachable mounting sleeve 17 from deviating and jamming in the hole during lowering.

[0035] In this embodiment, the connecting rotating rod 13 rotates smoothly through the sealed bearing 12, ensuring that the winding roller 10 can smoothly unwind and wind the measuring rope 11. The sealed bearing 12 reduces friction, making the winding roller 10 rotate more smoothly and improving the unwinding and winding efficiency of the measuring rope 11. The sealed design prevents dust from entering the bearing, prolonging the service life of the equipment. The winding roller 10 is fixedly installed with a connecting rotating rod 13 at both ends, and the two connecting rotating rods 13 are each fitted with a sealed bearing 12 at the opposite end. The two sealed bearings 12 are each fixedly embedded in the inner wall of the U-shaped support frame rod 6.

[0036] In this embodiment, the servo motor 9 drives the connecting rotating rod 13, which in turn drives the winding roller 10 to rotate, achieving automatic unwinding and winding of the measuring rope 11. Automation improves measurement efficiency and reduces the need for manual operation. The servo motor 9 is fixedly installed on one side of the U-shaped support frame rod 6, and the output shaft of the servo motor 9 penetrates the U-shaped support frame rod 6 and is fixedly connected to the free end of one of the connecting rotating rods 13.

[0037] In this embodiment, the moving wheels 29 roll on the installation rail 8, and the manual locking piece is used to lock the position, ensuring that the U-shaped movable base 7 remains stationary when needed. The moving wheels 29 make the U-shaped movable base 7 easy to move and adjust the position, improving the flexibility of the device. The manual locking piece ensures that the U-shaped movable base 7 does not accidentally slide during measurement, ensuring the accuracy and safety of the measurement. Each U-shaped movable base 7 is symmetrically installed with two moving wheels 29 on the inner top wall, and the moving wheels 29 have a manual locking piece, so that when the U-shaped movable base 7 is clamped on the installation rail 8, the moving wheels 29 roll on the installation rail 8.

[0038] In this embodiment, the drilling end of the drilling machine 1 has a mounting head 2, and the main shaft 3 penetrates longitudinally inside the mounting head 2. The bottom end of the main shaft 3 is fixedly connected with the drill rod 4.

[0039] Working principle

[0040] The deep hole curtain grouting drilling hole depth measuring device starts the drilling machine 1 to start the drilling operation, the drill rod 4 gradually penetrates into the ground during the drilling process to form a drill hole, when the drill hole reaches the required depth, the operator takes out the drill rod 4 to start the measuring process, the servo motor 9 drives the winding roller 10 to rotate, the measuring rope 11 is gradually unwound, the measuring weight pipe 16 and the detachable mounting sleeve 17 are driven to descend into the drill hole, the measuring rope 11 has a scale line, and the hole depth is determined by observing the position change of the scale line.

[0041] If the detachable mounting sleeve 17 is blocked by the debris during the descent process, the driving motor 24 can be started through the external remote controller, the driving motor 24 drives the cleaning blade 23 on the connecting rod 28 to rotate, the blocked debris is cleaned by impact, so that the measuring weight pipe 16 and the detachable mounting sleeve 17 can continue to descend.

[0042] The communication cable 20 is wound on the lifting ring 19 at the top of the measuring weight pipe 16, one end of the cable is connected to the driving motor 24, and the other end extends to the external distribution box, and the driving motor 24 is remotely controlled through the communication cable 20.

[0043] When the measuring weight pipe 16 and the detachable mounting sleeve 17 reach the bottom of the drill hole, the unwinding of the measuring rope 11 is stopped, and they are retracted through the winding roller 10, the operator reads the final hole depth data according to the scale line on the measuring rope 11, and records it.

[0044] After the measurement is completed, the entire measuring device is reset, the power is turned off, and the next measurement is prepared.

[0045] It should be noted that, in the present text, relational terms such as one and two and the like are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus. Without more limitations, the statement "comprises a limited element" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the depth of a borehole for deep-hole curtain grouting, comprising a drilling rig (1), characterized in that: The lower part of the drilling rig (1) is symmetrically provided with two installation rails (8), the drilling end of the drilling rig (1) is connected with a drill rod (4), a movable hole depth measuring assembly (5) is arranged on one side close to the drill rod (4) and located on the installation rail (8), the movable hole depth measuring assembly (5) comprises two inverted U-shaped movable bases (7) symmetrically and slidingly installed on the two installation rails (8), an inverted U-shaped support frame rod (6) welded between the top surfaces of the two U-shaped movable bases (7), a winding roller (10) rotatably installed on the upper part of the U-shaped support frame rod (6), a positioning pipe (15) fixedly installed between the two U-shaped movable bases (7), and a measuring weight pipe (16) inserted into the positioning pipe (15), the winding roller (10) is wound with a measuring rope (11), the free end of the measuring rope (11) is connected with the top end of the measuring weight pipe (16), so that the winding roller (10) in the rotating state unwinds the measuring rope (11), so that the measuring weight pipe (16) falls into the borehole due to its own weight through the positioning pipe (15), and the bottom end of the measuring weight pipe (16) is provided with a detachable mounting sleeve (17), the detachable mounting sleeve (17) has a driving motor (24) therein, the output shaft of the driving motor (24) is fixedly connected with a connecting rod (28), the connecting rod (28) extends to the outside of the bottom end of the detachable mounting sleeve (17) and is symmetrically welded with cleaning blades (23).

2. The device for measuring the depth of a borehole for deep-hole curtain grouting according to claim 1, characterized in that: The top end of the detachable mounting sleeve (17) is integrally connected with an inserted inner tube (22), the bottom end of the measuring weight pipe (16) is provided with an internally threaded counterbore (18) penetratingly formed in the lateral wall thereof, and the inserted inner tube (22) is inserted into the measuring weight pipe (16), so that the internally threaded counterbore (18) is connected with the inserted inner tube (22) through a locking screw (21).

3. The device for measuring the depth of a borehole for deep-hole curtain grouting according to claim 2, characterized in that: The driving motor (24) is arranged in the lower part of the inner cavity of the detachable mounting sleeve (17), and the tail end of the driving motor (24) is provided with a partition support disc (26), and a storage battery (25) is detachably mounted above the partition support disc (26) and located in the upper part of the inner cavity of the detachable mounting sleeve (17).

4. The device for measuring the depth of a borehole for deep-hole curtain grouting according to claim 3, characterized in that: Silicone damping pads (27) are attached to the upper and lower sides of the partition support disc (26), and the two silicone damping pads (27) are respectively elastically abutted with the driving motor (24) and the storage battery (25).

5. The device for measuring the depth of a borehole for deep-hole curtain grouting according to claim 4, characterized in that: A lifting ring (19) is fixedly installed at the top end of the measuring weight pipe (16), one end of the measuring rope (11) away from the winding roller (10) is fixedly connected with the lifting ring (19), a communication cable (20) is also wound on the lifting ring (19), one end of the communication cable (20) extends into the measuring weight pipe (16) and the detachable mounting sleeve (17) and is connected with the driving motor (24), and the other end of the communication cable (20) extends to an external distribution box along the measuring rope (11).

6. The device for measuring the depth of a borehole for deep-hole curtain grouting according to claim 5, characterized in that: Two opposite sides of the top of each U-shaped mobile base (7) are welded with support frame rods (14), and two opposite ends of the support frame rods (14) are symmetrically welded on the outer wall of the positioning pipe (15).

7. The device according to claim 6, characterized in that it comprises a depth measuring device (7) for measuring the depth of the drill hole. Both ends of the winding roller (10) are fixedly installed with connecting rotating rods (13), and the opposite ends of the two connecting rotating rods (13) are both provided with interference fit sealing bearings (12), and the two sealing bearings (12) are both fixedly embedded on the inner wall of the U-shaped support frame rod (6).

8. The device according to claim 7, characterized in that it comprises a depth measuring device (7) for measuring the depth of the drill hole. One side of the U-shaped support frame rod (6) is fixedly installed with a servo motor (9), and the output shaft of the servo motor (9) penetrates into the U-shaped support frame rod (6) and is fixedly connected with the free end of one of the connecting rotating rods (13).

9. The device according to claim 8, characterized in that it comprises a depth measuring device (7) for measuring the depth of the drill hole. The inner top wall of each U-shaped mobile base (7) is symmetrically installed with two mobile wheels (29), and the mobile wheels (29) are provided with manual locking pieces.

10. The device according to claim 9, characterized in that it comprises a depth measuring device (7) for measuring the depth of the drill hole. The drilling end of the drilling machine (1) is provided with a mounting head (2), the inside of the mounting head (2) is longitudinally penetrated with a main shaft member (3), and the bottom end of the main shaft member (3) is fixedly connected with a drill rod (4).

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