Slope protection soil nail mechanical hammering installation tool

Abstract

The invention discloses a slope protection soil nail mechanical hammering installation tool in the technical field of slope protection engineering application tools, and the slope protection soil nail mechanical hammering installation tool comprises a hammering rod and a hammering head, and further comprises a clamping assembly, and the clamping assembly pushes a clamping piece of the clamping assembly through hydraulic oil to clamp the hammering head; the liquid storage assembly is used for injecting hydraulic oil into the clamping assembly or receiving the hydraulic oil discharged by the clamping assembly; the valve assembly is used for cutting off hydraulic oil circulation between the liquid storage assembly and the clamping assembly; hydraulic oil is used for pushing the clamping piece to clamp the hammering head, then the hydraulic oil is cut off, the volume of the hydraulic oil is fixed, the hydraulic oil serves as a part of clamping and supporting the hammering head, and no gap is generated between the hammering head and the clamping piece after clamping; therefore, the risks that in the using process, the hammering head shakes relative to the clamping piece, the hammering head and the clamping piece move relative to each other, abrasion is caused, finally, the strength of components is reduced, and the components are directly cracked in the working process are avoided.

Description

Technical Field

[0001] This invention relates to the field of tools for slope protection engineering, specifically a mechanical hammering installation tool for slope protection soil nails. Background Technology

[0002] In the slope stabilization measures of foundation pit excavation, both concrete spraying and steel mesh and prefabricated slope protection need to be fixed with soil nails. One of the commonly used methods is the vibratory hammer driving method. Its working principle is to connect the soil nail rod to the vibratory hammer, and then use the hammering of the vibratory hammer to drive the soil nail into the ground. To accommodate different models of soil nails, the clamping part of the vibratory hammer for soil nails and the hammering part that directly receives the hammer blows are designed as separate parts.

[0003] However, the existing connection structure of split-type vibratory hammers has significant technical defects, the specific problems of which are as follows (see reference). Figure 1 ): To further improve the efficiency of clamping part replacement, the connection between clamping part and hammering part generally adopts interference fit, and is equipped with fast-plugging connectors such as pins. At the same time, in order to ensure that the impact energy of the hammering part can be efficiently transmitted to the clamping part, the industry usually does not add elastic compensation parts at the connection between the two. The lack of elastic parts directly leads to the inability to correct the coaxiality deviation generated during the interference fit process. This results in a highly concentrated area of ​​stress and pressure during operation, creating a wear-prone area. With prolonged use, the accumulated wear will increase the coaxiality deviation, which in turn will accelerate the wear rate, ultimately leading to a decrease in component strength and a risk of direct breakage during operation, causing damage to personnel and property on site. Summary of the Invention

[0004] The purpose of this invention is to provide a mechanical hammer-installation tool for slope protection soil nailing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical hammering installation tool for slope protection soil nailing, comprising a hammering rod and a hammering head, and further comprising a clamping assembly disposed at the end of the hammering rod and used to clamp the hammering head, wherein the clamping assembly can increase the volume of its own hydraulic oil and use the hydraulic oil to push its own clamping parts to clamp the hammering head; A liquid storage assembly, which is used to inject hydraulic oil into the clamping assembly or to receive hydraulic oil discharged from the clamping assembly; A valve assembly, which is disposed within the liquid storage assembly, is used to isolate the flow of hydraulic oil between the liquid storage assembly and the clamping assembly.

[0006] Preferably, a connecting post is fixedly connected to one end of the hammer head near the hammer rod, and a clamping post is fixedly connected to the connecting post. The clamping assembly is used to clamp the clamping post.

[0007] Preferably, the clamping assembly includes a plurality of clamping blocks that are slidably disposed on the end face of the hammer rod along the radial direction of the hammer rod. The plurality of clamping blocks are arranged in a circumferential array around the axis of the hammer rod. A rigid oil pipe is provided on the side of the clamping block away from the axis of the hammer rod along the radial direction of the hammer rod. A piston rod is slidably connected inside the oil pipe. The piston rod is fixedly connected to the corresponding clamping block. The oil pipe is in communication with the liquid storage assembly.

[0008] Preferably, the liquid storage assembly includes an annular box fixedly disposed on the side wall of the hammer rod. A partition is fixedly connected to the inner wall of the annular box, which divides the annular box into two independent chambers, chamber one and chamber two. An annular piston is slidably connected to the inner wall of chamber two. A drive assembly is connected to the annular piston, which is used to control the vertical sliding of the annular piston. Chamber one is connected to an oil pipe through an external hose.

[0009] Preferably, the valve assembly is disposed on the partition plate.

[0010] Preferably, the valve assembly includes a through hole that vertically penetrates a partition plate. A columnar groove is formed in the partition plate and arranged radially along the annular box. An operating rod that extends through the annular box is coaxially rotatably connected in the columnar groove. A knob is fixedly connected to one end of the operating rod outside the annular box. A semi-cylinder is coaxially fixedly connected to the part of the operating rod located in the columnar groove. The through hole intersects with the columnar groove, and the semi-cylinder can completely block the through hole.

[0011] Preferably, a plurality of partitions 2 are vertically arranged inside the cavity 1, dividing the top surface of the annular box into equal parts with the number of oil pipes. Piston plates are slidably connected between the partitions 2. A connecting rod is fixedly connected to the lower end of each piston plate. The piston plate, the adjacent partition 2, and the inner wall of the annular box form a cavity 3. The oil pipes are respectively connected to the corresponding cavity 3. The lower ends of the connecting rods are all fixedly connected to an annular piston 2. The annular piston 2 is slidably connected to the inner wall of the annular box.

[0012] Preferably, the drive assembly includes a spring, the two ends of which are fixedly connected to the lower end of the annular piston and the lower end plate of the annular box, respectively.

[0013] Preferably, the lower end plate of the annular box is engaged with the main body of the annular box.

[0014] Preferably, a hydraulic tank is fixedly connected to each of the clamping blocks on the side away from the hammer rod axis. A piston head is vertically slidably connected inside the hydraulic tank. A sliding rod is fixedly connected to the upper end of the piston head. The upper end of the sliding rod extends through to the top of the hydraulic tank and is fixedly connected to a pressure plate. The pressure plate is used to clamp the end of the clamping column near the connecting column. A connecting pipe is fixedly connected to the side wall of the hydraulic tank. The connecting pipe is always located between the upper end of the hydraulic tank and the piston head. The oil pipe is fixedly connected to an oil tank. The connecting pipe is connected to the oil tank. The oil tank is connected to the corresponding cavity in three separate connections.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes hydraulic oil with no fixed shape to drive a clamping component to clamp the hammer head. Then, by interrupting the flow of hydraulic oil, the volume of hydraulic oil is fixed and used as part of the clamping support for the hammer head. This allows the distance from the clamping component to the axis of the hammer rod to be dynamically adjusted according to the clamped part of the hammer head, ensuring that there is no gap between the hammer head and the clamping component after clamping. This avoids the risk of the hammer head wobbling relative to the clamping component during use, which would cause changes in the coaxiality of the hammer head installation, relative movement between the hammer head and the clamping component, wear, and ultimately, a decrease in component strength and direct breakage during operation.

[0016] The clamping column, as a specialized clamping structure, has a flat surface and is sized to fit the clamping components, ensuring uniform force after clamping. Combined with the dynamic adjustment characteristics of hydraulic drive, it ensures the coaxiality of the hammer head and hammer rod, avoiding relative wobbling during operation.

[0017] By utilizing the incompressibility of hydraulic oil, the hydraulic pressure inside the cavity remains stable, ensuring that the clamping blocks are always kept in a clamped state and preventing the clamping from loosening due to hydraulic oil leakage during hammering. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the existing technology structure; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the structure after the hammer rod and hammer head are separated. Figure 4 for Figure 3 A schematic diagram of the half-section structure after removing the hammer head; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 A schematic diagram of the control lever, semi-cylinder, and knob; Figure 7 This is a diagram showing the unfolded internal structure of the annular box.

[0019] The attached diagram lists the components represented by each number as follows: 1. Hammering rod, 2. Hammering head, 3. Connecting column, 4. Clamping column, 5. Clamping block, 6. Oil pipe, 7. Piston rod, 8. Hydraulic tank, 9. Piston head, 10. Slide rod, 11. Pressure plate, 12. Connecting pipe, 13. Oil tank, 14. Annular box, 14-1 cavity one, 14-2 cavity two, 14-3 cavity three, 15. Annular piston, 16. Partition one, 17. Operating rod, 18. Columnar groove, 19. Semi-cylinder, 20. Partition two, 21. Piston plate, 22. Connecting rod, 23. Spring, 27. Annular piston two, 28. Knob. Detailed Implementation

[0020] Please see Figure 1-7 The present invention provides a technical solution: (with) Figure 3 (As a reference benchmark) A slope protection soil nailing mechanical hammering installation tool includes a hammer rod 1 and a hammer head 2, and includes a clamping assembly disposed at the end of the hammer rod 1 and used to clamp the hammer head 2. The clamping assembly can increase the volume of its own hydraulic oil and use the hydraulic oil to push its own clamping parts to clamp the hammer head 2. A liquid storage assembly, which is used to inject hydraulic oil into the clamping assembly or to receive hydraulic oil discharged from the clamping assembly; A valve assembly, which is disposed within the liquid storage assembly, is used to isolate the flow of hydraulic oil between the liquid storage assembly and the clamping assembly.

[0021] When using, determine the model of hammer head 2 according to the model of the soil nail to be driven into the ground, and then pre-install the hammer head 2 to be used at the end of the hammer rod 1, and wait for the clamping assembly to clamp it. The clamping assembly clamps the hammer head 2. During this process, the accumulator injects hydraulic oil into the clamping assembly, which increases the volume of hydraulic oil in the clamping assembly and squeezes the clamping parts, causing the clamping parts to clamp the hammer head 2. Then the valve assembly is closed to cut off the flow of hydraulic oil between the accumulator and the clamping assembly. By utilizing the incompressibility of the liquid, the hammer head 2 is kept in a clamped state. This invention utilizes hydraulic oil with no fixed shape to drive a clamping component to clamp the hammer head 2. Then, by interrupting the flow of hydraulic oil, the volume of hydraulic oil is fixed and used as part of the clamping support for the hammer head 2. This allows the distance from the clamping component to the axis of the hammer rod 1 to be dynamically adjusted according to the clamped part of the hammer head 2, ensuring that there is no gap between the hammer head 2 and the clamping component after clamping. This avoids the risk of the hammer head 2 wobbling relative to the clamping component during use, which would cause changes in the coaxiality of the hammer head 2 installation, relative movement between the hammer head 2 and the clamping component, wear, and ultimately a decrease in component strength, and even direct breakage during operation.

[0022] Preferably, a connecting post 3 is fixedly connected to one end of the hammer head 2 near the hammer rod 1, and a clamping post 4 is fixedly connected to the connecting post 3. The clamping assembly is used to clamp the clamping post 4.

[0023] During operation, first select the matching hammer head 2 according to the model of the soil nail to be installed, and drive the clamping column 4 through the connecting column 3 to pre-install the hammer head 2 into place, aligning it with the center position of the clamping component at the end of the hammer rod 1. Subsequently, the liquid storage component injects hydraulic oil into the clamping component, driving the clamping parts of the clamping component to move from all sides toward the clamping post 4 and apply clamping force; The clamping column 4 is a specialized clamping structure with a flat surface and dimensions that are adapted to the clamping components, ensuring uniform force after clamping. Combined with the dynamic adjustment characteristics of hydraulic drive, it ensures the coaxiality of the hammer head 2 and the hammer rod 1, avoiding relative shaking during operation.

[0024] Preferably, the clamping assembly includes a plurality of clamping blocks 5 that are radially slidably disposed on the end face of the hammer rod 1. The plurality of clamping blocks 5 are arranged in a circumferential array around the axis of the hammer rod 1. A rigid oil pipe 6 is provided radially along the hammer rod 1 on the side of each clamping block 5 away from the axis of the hammer rod 1. A piston rod 7 is slidably connected inside the oil pipe 6. The piston rod 7 is fixedly connected to the corresponding clamping block 5. The oil pipe 6 is in communication with the liquid storage assembly.

[0025] During operation, the accumulator injects hydraulic oil into each oil pipe 6, and the pressure generated by the hydraulic oil pushes the piston rod 7 in the oil pipe 6 to slide radially towards the axis along the hammer rod 1. Since the piston rod 7 is fixedly connected to the clamping block 5, the piston rod 7 drives the corresponding clamping block 5 to slide synchronously. Multiple clamping blocks 5 arranged in a circular array around the axis of the hammer rod 1 move towards the center from all sides, and together clamp the clamping column 4 of the hammer head. The rigid oil pipe 6 ensures stable transmission of hydraulic oil pressure and avoids deformation that affects clamping accuracy. The circumferential array of clamping blocks 5 ensures that the clamping force is applied evenly to the clamping column 4. Combined with the synchronicity of the hydraulic drive, it further ensures the coaxiality of the hammer head 2 and the hammer rod 1 and reduces relative wear during operation.

[0026] Preferably, the liquid storage assembly includes an annular box 14 fixedly disposed on the side wall of the hammer rod 1. A partition 16 is fixedly connected to the inner wall of the annular box 14, which divides the annular box 14 into two independent chambers, annular chamber 14-1 and annular chamber 14-2. An annular piston 15 is slidably connected to the inner wall of thenular chamber 14-2. The annular piston 15 is connected to a drive assembly, which controls the vertical sliding of the annular piston 15. Thenular chamber 14-1 is connected to the oil pipe 6 through an external hose.

[0027] During operation, the drive assembly controls the annular piston 15 to slide vertically upward in the cavity 14-2, squeezing the hydraulic oil in the cavity 14-2, and pushing the hydraulic oil in the cavity 14-1 to flow through pressure transmission; The hydraulic oil in cavity 14-1 is delivered to each rigid oil pipe 6 via an external hose, providing a power source for the clamping action of the clamping block 5; The annular structure of the annular box 14 is adapted to the installation form of the hammer rod 1. The partition 16 realizes the independent isolation of the cavity 14-1 and the cavity 2 14-2, avoids mutual pressure interference, ensures that the hydraulic oil can be stably and evenly delivered to each oil pipe 6, and ensures that multiple clamping blocks 5 are clamped synchronously.

[0028] Preferably, the valve assembly is disposed on the partition 16.

[0029] During operation, when the annular piston-15 pushes the hydraulic oil in the cavity-14-1 to the oil pipe 6 and the clamping block 5 completes the clamping of the clamping column 4, the valve assembly is operated to close the flow channel on the partition-16, cutting off the hydraulic oil flow between the cavity-14-1 and the external hose or oil pipe 6. By taking advantage of the incompressibility of hydraulic oil, the hydraulic pressure in cavity 14-1 remains stable, ensuring that the clamping block 5 always remains clamped and preventing the clamping from loosening due to hydraulic oil leakage during the hammering process. When it is necessary to replace the hammer head 2, the reverse operation valve assembly opens the flow channel, and the hydraulic oil in the cavity 14-1 can flow back to the annular box 14 or other liquid storage structure. The clamping block 5 retracts under the action of the reset force of the drive assembly or the negative pressure generated by the hydraulic oil return, and the clamping column 4 is released for quick disassembly.

[0030] Preferably, the valve assembly includes a through hole 24 vertically penetrating the partition 16. A columnar groove 18 is provided in the partition 16 and arranged radially along the annular box 14. An operating rod 17 is coaxially rotatably connected in the columnar groove 18 and extends to the outside of the annular box 14. A knob 28 is fixedly connected to one end of the operating rod 17 located outside the annular box 14. A semi-cylinder 19 is coaxially fixedly connected to the part of the operating rod 17 located in the columnar groove 18. The through hole 24 intersects with the columnar groove 18, and the semi-cylinder 19 can completely block the through hole 24.

[0031] When hydraulic oil needs to be supplied to the oil pipe 6 during operation, the operating lever 17 outside the annular box 14 is rotated, which drives the coaxially fixed semi-cylinder 19 to rotate synchronously in the columnar groove 18. When the plane of the semi-cylinder 19 faces the through hole 24, the through hole 24 is fully open, and the hydraulic oil in the cavity 14-1 can flow smoothly into each oil pipe 6 through the external hose of the through hole 24, providing power for the clamping of the clamping block 5. After the clamping block 5 completes clamping, the operating lever 17 is rotated in the opposite direction so that the arc surface of the semi-cylinder 19 fits against the inner wall of the columnar groove 18. At this time, the semi-cylinder 19 completely blocks the through hole 24 and cuts off the flow path of hydraulic oil. With the help of the incompressibility of hydraulic oil, the pressure in the cavity 14-1 and the oil pipe 6 is kept stable, ensuring that the clamping block 5 continues to clamp the column 4. When replacing the hammer head 2, rotate the operating lever 17 again to open the through hole 24, and the hydraulic oil flows back to the annular box 14. The clamp 5 is released, realizing the quick disassembly of the hammer head 2. The radial rotation design of the operating lever 17 makes operation convenient. The equal radius of the semi-cylinder 19 and the columnar groove 18 ensures the sealing performance of the plug and avoids pressure leakage.

[0032] Preferably, a plurality of partitions 20 are vertically arranged inside the cavity 14-1, dividing the top surface of the annular box 14 into equal parts with the number of oil pipes 6. Piston plates 21 are slidably connected between the partitions 20. The lower end of each piston plate 21 is fixedly connected to a connecting rod 22. The piston plate 21, the adjacent partitions 20, and the inner wall of the annular box 14 form a cavity 3 14-3. The oil pipes 6 are respectively connected to the corresponding cavity 3 14-3. The lower end of the connecting rod 22 is fixedly connected to an annular piston 27. The annular piston 27 is slidably connected to the inner wall of the annular box 14.

[0033] During operation, the drive assembly drives the annular piston 15 to move upward. The annular piston 15 drives the second annular piston 27 to slide vertically upward along the inner wall of the annular box 14 via hydraulic pressure, and simultaneously pulls each piston plate 21 upward through the connecting rod 22. The piston plate 21 slides between the corresponding partition plates 20, which expands the volume of each cavity 14-3 and generates negative pressure inside, or achieves pressure output by pushing in the opposite direction, so as to accurately deliver the hydraulic oil in the cavity 14-3 to the corresponding oil pipe 6.

[0034] Multiple baffles 20 divide the top surface of the annular box 14 into equal parts, so that the number of cavities 14-3 is consistent with the number of oil pipes 6, ensuring that each oil pipe 6 can receive a uniform supply of hydraulic oil, thereby driving each clamping block 5 to clamp the clamping column 4 synchronously and with equal force, further ensuring the coaxiality of the hammer head 2 and the hammer rod 1, and avoiding wear or deviation caused by uneven force.

[0035] Preferably, the drive assembly includes a spring 23, the two ends of which are fixedly connected to the lower end of the annular piston 15 and the lower end plate of the annular box 14, respectively.

[0036] During operation, the spring 23 is in a compressed state. When it is necessary to clamp the hammer head 2, the spring 23 pushes the annular piston 15 to slide vertically upward along the inner wall of the cavity 2 14-2, squeezing the medium in the cavity 2 14-2, and then presses the hydraulic oil in the cavity 1 14-1 into the oil pipe 6, driving the clamping block 5 to clamp the clamping column 4. After clamping, close the valve assembly to maintain stable hydraulic pressure; When it is necessary to release the hammer head 2, open the valve assembly and manually push the clamping block 5 to release the hammer head 2, thereby achieving the clamping release; The design of spring 23 ensures that the clamping block 5 has a certain clamping force on the clamping column 4 during the clamping process, thereby ensuring that the clamping block 5 and the clamping column 4 are in close contact, and further preventing the clamping column 4 from shaking relative to the hammer rod 1 during the operation.

[0037] Preferably, the lower end plate of the annular box 14 is engaged with the main body of the annular box 14.

[0038] When it is necessary to loosen or maintain the tool, the lower end plate can be unlocked from the main body of the annular box 14, improving the ease of tool maintenance.

[0039] Preferably, a hydraulic tank 8 is fixedly connected to the side of the clamping block 5 away from the axis of the hammer rod 1. A piston head 9 is vertically slidably connected inside the hydraulic tank 8. A slide rod 10 is fixedly connected to the upper end of the piston head 9. The upper end of the slide rod 10 extends through to the top of the hydraulic tank 8 and is fixedly connected to a pressure plate 11. The pressure plate 11 is used to clamp the end of the clamping column 4 near the connecting column 3. A connecting pipe 12 is fixedly connected to the side wall of the hydraulic tank 8. The connecting pipe 12 is always located between the upper end of the hydraulic tank 8 and the piston head 9. An oil pipe 6 is fixedly connected to an oil tank 13. The connecting pipe 12 is connected to the oil tank 13. The oil tank 13 is connected to the corresponding cavity 3 14-3.

[0040] During operation, the annular piston 22 slides upward, driving each piston plate 21 to move upward synchronously via the connecting rod 22, generating pressure in each cavity 14-3, and delivering hydraulic oil through the oil tank 13 in two paths: one path pushes the piston rod 7 through the oil pipe 6, causing the clamping block 5 to move closer to the axis of the hammer rod 1, and radially clamping the clamping column 4; the other path flows into the hydraulic tank 8 through the connecting pipe 12 and acts above the piston 2. The hydraulic oil in the hydraulic tank 8 presses the piston head 9 downward, pushing the slide rod 10 to slide vertically downward, thereby driving the pressure plate 11 to move down synchronously until the pressure plate 11 is tightly attached to the end face of the clamping column 4 near the connecting column 3, thus limiting and fixing the clamping column 4 axially. The radial clamping block 5 cooperates with the axial pressure plate 11 to achieve dual fixation of radial clamping and axial limiting of the clamping column 4, preventing radial shaking or axial movement of the clamping column 4 during hammering.

Claims

1. A mechanical hammering installation tool for slope protection soil nailing, comprising a hammering rod (1) and a hammering head (2), characterized in that: Includes a clamping assembly, which is disposed at the end of the hammer rod (1) and is used to clamp the hammer head (2). The clamping assembly can clamp the hammer head (2) by increasing the volume of its own hydraulic oil and using the hydraulic oil to push its own clamping member. A liquid storage assembly, which is used to inject hydraulic oil into the clamping assembly or to receive hydraulic oil discharged from the clamping assembly; A valve assembly, which is disposed within the liquid storage assembly, is used to isolate the flow of hydraulic oil between the liquid storage assembly and the clamping assembly.

2. The slope protection soil nailing mechanical hammer installation tool according to claim 1, characterized in that: The hammer head (2) is fixedly connected to a connecting post (3) at one end near the hammer rod (1), and the connecting post (3) is fixedly connected to a clamping post (4). The clamping assembly is used to clamp the clamping post (4).

3. The slope protection soil nailing mechanical hammer installation tool according to claim 2, characterized in that: The clamping assembly includes multiple clamping blocks (5) that are slidably disposed on the end face of the hammer rod (1) along the radial direction of the hammer rod (1). The multiple clamping blocks (5) are arranged in a circular array around the axis of the hammer rod (1). On the side of the clamping blocks (5) away from the axis of the hammer rod (1), a rigid oil pipe (6) is provided along the radial direction of the hammer rod (1). A piston rod (7) is slidably connected inside the oil pipe (6). The piston rod (7) is fixedly connected to the corresponding clamping block (5). The oil pipe (6) is connected to the liquid storage assembly.

4. The slope protection soil nailing mechanical hammer installation tool according to claim 3, characterized in that: The liquid storage assembly includes an annular box (14) fixedly installed on the side wall of the hammer rod (1). A partition (16) is fixedly connected to the inner wall of the annular box (14). The partition (16) divides the annular box (14) into two independent chambers, chamber 1 (14-1) and chamber 2 (14-2), along the axial direction. An annular piston (15) is slidably connected to the inner wall of chamber 2 (14-2). A drive assembly is connected to the annular piston (15). The drive assembly is used to control the vertical sliding of the annular piston (15). Chamber 1 (14-1) is connected to the oil pipe (6) through an external hose.

5. The slope protection soil nailing mechanical hammer installation tool according to claim 4, characterized in that: The valve assembly is mounted on partition one (16).

6. The slope protection soil nailing mechanical hammer installation tool according to claim 5, characterized in that: The valve assembly includes a through hole (24) that vertically penetrates a partition (16). A columnar groove (18) is provided in the partition (16) and arranged radially along the annular box (14). An operating rod (17) that penetrates to the outside of the annular box (14) is coaxially rotatably connected in the columnar groove (18). A knob (28) is fixedly connected to one end of the operating rod (17) located outside the annular box (14). A half-cylinder (19) is coaxially fixedly connected to the part of the operating rod (17) located in the columnar groove (18). The through hole (24) intersects with the columnar groove (18), and the half-cylinder (19) can completely block the through hole (24).

7. The slope protection soil nailing mechanical hammer installation tool according to claim 5, characterized in that: The cavity one (14-1) is vertically provided with multiple partitions two (20) that divide the top surface of the annular box (14) into the number of oil pipes (6). Piston plates (21) are slidably connected between the partitions two (20). The lower end of each piston plate (21) is fixedly connected to a connecting rod (22). The piston plate (21), the adjacent partitions two (20) and the inner wall of the annular box (14) form a cavity three (14-3). The oil pipes (6) are respectively connected to the corresponding cavity three (14-3). The lower end of the connecting rod (22) is fixedly connected to an annular piston two (27). The annular piston two (27) is slidably connected to the inner wall of the annular box (14).

8. The slope protection soil nailing mechanical hammer installation tool according to claim 4, characterized in that: The drive assembly includes a spring (23), the two ends of which are fixedly connected to the lower end of the annular piston (15) and the lower end plate of the annular box (14), respectively.

9. The slope protection soil nailing mechanical hammer installation tool according to claim 8, characterized in that: The lower end plate of the annular box (14) is engaged with the main body of the annular box (14).

10. The slope protection soil nailing mechanical hammer installation tool according to claim 7, characterized in that: Hydraulic tanks (8) are fixedly connected to the side of the clamping block (5) away from the axis of the hammer rod (1). A piston head (9) is vertically slidably connected inside the hydraulic tank (8). A slide rod (10) is fixedly connected to the upper end of the piston head (9). The upper end of the slide rod (10) extends through to the top of the hydraulic tank (8) and is fixedly connected to a pressure plate (11). The pressure plate (11) is used to clamp the clamping column (4) near the end of the connecting column (3). A connecting pipe (12) is fixedly connected to the side wall of the hydraulic tank (8). The connecting pipe (12) is always located between the upper end of the hydraulic tank (8) and the piston head (9). An oil tank (13) is fixedly connected to the oil pipe (6). The connecting pipe (12) is connected to the oil tank (13). The oil tank (13) is connected to the corresponding cavity three (14-3).

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