Drilling method for narrow pit anchor bar

Abstract

The application discloses a drilling method for narrow pit reinforcing bar planting, which comprises a vehicle body, a fixing device and a punching and welding device, and the vehicle body serves as a bearing main body; the fixing device is arranged on the vehicle body; the vehicle body is provided with a storage bin for storing reinforcing bars, and the storage bin is provided with a feeding channel through which the reinforcing bars can pass; the punching and welding device comprises a punching assembly and an electroslag pressure welding device; the electroslag pressure welding device comprises an electrode part and a welding box; the punching assembly comprises an electric drill, a connecting seat, a rotating part, a clamping assembly and an extension rod; the rotating part is arranged at the bottom of the connecting seat in a rotatable and driven mode; when punching, the clamping assembly clamps or releases the electric drill; the rotating part is used for driving the electric drill to rotate; the extension rod drives the welding box to move up and down along the vertical direction, and is used for applying downward pressure to the electric drill; when welding, the clamping assembly clamps the reinforcing bar; the extension rod moves the welding box to the connecting position of the reinforcing bar; the electrode part is used for electrifying the reinforcing bar in the feeding channel; and the welding is completed.

Description

Technical Field

[0001] This invention relates to the technical field of building engineering, and in particular to a method for drilling rebar holes in narrow pits. Background Technology

[0002] Rebar anchoring, also known as rebar installation, is a post-anchoring connection technique for reinforcing steel bars in seismic reinforcement engineering of building structures. It utilizes the locking force of structural adhesive to achieve the final bond. It is the optimal choice for structural reinforcement and heavy-load fastening applications. Chemical rebar anchoring involves drilling holes in concrete, wall, or rock substrates and then injecting high-strength anchoring adhesive (note: high-strength building anchoring adhesives are generally divided into injection-type and barrel-type adhesives). After the rebar or profile is inserted and the adhesive cures, it bonds the rebar to the substrate, making it a commonly used construction engineering technique in the reinforcement industry.

[0003] Currently, the main method for rebar installation in narrow pits is manual rebar installation. However, in some narrow openings where manual access is impossible, manual welding and drilling are not possible, and there are dangers to personnel during construction. The narrow openings make it impossible for people to enter for welding, thus making rebar installation impossible.

[0004] Therefore, there is an urgent need for a drilling method suitable for rebar installation in narrow pits, which allows welding and drilling at narrow openings, avoiding dangerous construction work for personnel, and solving the problems of welding that cannot be performed in narrow openings and rebar installation that cannot be performed at the bottom of narrow openings. Summary of the Invention

[0005] In view of this, the present invention provides a method for drilling holes for rebar installation in narrow pits, which can replace welding and drilling in narrow openings that cannot be constructed manually, avoid dangerous construction for personnel, and solve the problems that people cannot enter narrow openings for welding and that rebar cannot be installed at the bottom of narrow openings.

[0006] The present invention provides a technical solution for a method of drilling holes for rebar installation in narrow pits, which adopts the following approach:

[0007] A method for drilling holes for rebar installation in narrow pits includes the following construction steps:

[0008] S1: Construction preparation: Install the electric drill on the rotating part of the vehicle body, clamp the electric drill with the clamping assembly, and place the steel bars in the storage compartment of the vehicle body;

[0009] S2: After moving the vehicle body to the designated position, activate the fixing device to secure the vehicle body;

[0010] S3: Drilling: Extend the telescopic rod to press the electric drill against the hole to be drilled. The rotating part is driven to rotate, and at the same time, the telescopic rod applies downward pressure to make the electric drill drill. After drilling to the specified depth, the clamping assembly releases the electric drill, and the telescopic rod retracts.

[0011] S4: Rebar installation: The moving component in the storage bin drives the rebar in the storage bin to move towards the material drop channel, so that the rebar moves through the material drop channel to the top of the electric drill. The welding box installed on the vehicle body moves to the joint of the rebar. The welding flux on the vehicle body is delivered to the welding box through the pipeline. The drilling and welding device is started, so that the electrode part located in the material drop channel is energized to perform welding.

[0012] S5: After welding is completed, the welding box is opened to allow the welding flux inside the welding box to fall off. The vehicle body is a split upper and lower body. The upper body and the lower body are connected by an electric push rod and a guide rod. When in use, the electric push rod drives the upper body to rise so that the clamping assembly clamps the newly welded steel bar.

[0013] S6: Repeat steps S4-S5 until the rebar installation is complete;

[0014] The vehicle body, serving as the main load-bearing component, has a movable assembly that allows it to be driven to move. A fixing device is installed on the vehicle body, and this device has a clamping part that clamps the opening or both sides of a component to restrict the movement of the vehicle body. The storage bin has a material discharge channel through which the reinforcing bars can pass. The drilling and welding device includes a drilling assembly and an electroslag pressure welding device. The electroslag pressure welding device includes an electrode and a welding box containing welding flux. The drilling assembly includes an electric drill, a connecting seat, and a rotating... The device comprises a clamping assembly and a telescopic rod, the telescopic rod being drivably extended and retractable, and disposed between a connecting seat and a vehicle body. A rotating part is drivably rotatably fitted to the bottom of the connecting seat. During drilling, the clamping assembly clamps or releases the electric drill, the rotating part drives the electric drill to rotate, and the telescopic rod drives the welding box to rise and fall vertically to apply downward pressure to the electric drill. During welding, the clamping assembly clamps the reinforcing bar, the telescopic rod moves the welding box to the joint of the reinforcing bar, and the electrode part energizes the reinforcing bar located in the feeding channel to complete the welding.

[0015] Optionally, the welding box includes a first welding box and a second welding box, and a connector is provided on the connecting seat. The first welding box and the second welding box are disposed on the connecting seat through corresponding connectors, and the connectors can drive the first welding box and the second welding box to move towards each other or away from each other.

[0016] Optionally, the vehicle body is provided with a flux storage chamber for storing welding flux, the connecting seat is provided with a material conveying channel, a pipe is provided between the flux storage chamber and the material conveying channel, and the rotating part is provided with a discharge hole communicating with the material conveying channel; when discharging welding flux, the rotating part is activated to make the welding flux fall evenly into the welding box, avoiding uneven accumulation of welding flux.

[0017] Optionally, the inner wall of the welding box that contacts the electric drill is provided with ball bearings; the ball bearings contact the electric drill, and when the electric drill rotates, the ball bearings act as bearings to facilitate the rotation of the electric drill.

[0018] Optionally, a limiting member is provided on the side wall of the feeding channel, and the limiting member can be driven to extend so that the movable end of the limiting member abuts against the reinforcing bar in the feeding channel.

[0019] Optionally, the storage bin is provided with a moving assembly for moving the steel bars to the discharge channel. The moving assembly includes a moving plate and a spring. The moving plate is slidably disposed in the storage bin, and the spring is used to drive the moving plate to move towards the discharge channel.

[0020] Optionally, the storage bin is equipped with a limiting component that can be manipulated to restrict the movement of the reinforcing bars in the storage bin toward the discharge channel, thus preventing the remaining reinforcing bars from entering the discharge channel and becoming conductive.

[0021] Optionally, a pressure detection sensor is provided at the movable end of the telescopic rod, and the pressure detection sensor is used to detect the pressure on the connecting seat.

[0022] Optionally, after all the rebars are installed in S6, the vehicle's dust collection system is activated. The suction components of the dust collection system suck the fallen welding flux and debris into the vehicle's debris compartment.

[0023] In summary, the present invention has at least one of the following beneficial technical effects: This patent can replace welding and drilling in narrow openings that cannot be constructed manually, avoiding dangerous construction for personnel, and solving the problem that people cannot enter narrow openings for welding, and solving the problem that rebar cannot be installed at the bottom of narrow openings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the perforation structure according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the welding structure according to an embodiment of the present invention;

[0026] Figure 3 This is a top view of the rotating part according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the solder box according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1. Vehicle body; 2. Fixing device; 3. Storage compartment; 4. Reinforcing bar; 5. Electrode part; 6. Welding box; 7. Electric drill; 8. Connecting seat; 9. Rotating part; 10. Clamping assembly; 11. Telescopic rod; 12. Driving component; 13. Connecting component; 14. Guide surface; 15. Pipe; 16. Ball bearing; 17. Pressure detection sensor; 18. Limiting component; 19. Moving plate; 20. Spring; 21. Limiting component; 22. Dust collection assembly; 23. Feeding channel. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0030] This invention discloses a drilling method for rebar installation in narrow pits.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A method for drilling holes for rebar installation in narrow pits includes the following construction steps:

[0032] S1: Construction preparation: Install the electric drill 7 on the rotating part 9 of the vehicle body 1, clamp the electric drill 7 with the clamping assembly 10, and place the steel bar 4 in the storage compartment 3 of the vehicle body 1.

[0033] S2: After moving the vehicle body 1 to the designated position, activate the fixing device 2 to fix the vehicle body 1;

[0034] S3: Drilling: Extend the telescopic rod 11 to press the electric drill 7 against the hole to be drilled. The rotating part 9 is driven to rotate. At the same time, the telescopic rod 11 applies downward pressure to make the electric drill 7 drill. After drilling to the specified depth, the clamping assembly 10 releases the electric drill 7, the telescopic rod 11 retracts, and drives the clamping assembly 10 to move upward. After retracting to the end, the clamping assembly 10 clamps the electric drill 7.

[0035] S4: Rebar installation: The moving component in the storage chamber 3 drives the steel bar 4 in the storage chamber 3 to move towards the material drop channel, so that the steel bar 4 moves to the top of the electric drill 7 through the material drop channel, and the welding box 6 installed on the vehicle body 1 moves to the joint of the steel bar 4. The welding flux of the vehicle body 1 is transported to the welding box 6 through the pipe 15. The drilling and welding device is started, so that the electrode part 5 located in the material drop channel is energized to perform welding.

[0036] S5: After welding is completed, the welding box 6 is opened, so that the welding flux inside the welding box 6 falls off the welding box 6. The upper body in the vehicle body 1 is raised by the electric push rod, so that the clamping assembly 10 clamps the newly welded steel bar 4.

[0037] S6: Repeat steps S4-S5 until the rebar installation is complete.

[0038] The vehicle body 1 serves as the main load-bearing component and has a moving assembly, allowing it to be driven to move. A fixing device 2 is installed on the vehicle body 1 and includes a clamping part to restrict the movement of the vehicle body 1. The vehicle body 1 has a storage bin 3 for storing reinforcing bars 4, and the storage bin 3 has a feeding channel 23 through which the reinforcing bars 4 can pass. The drilling and welding device includes a drilling assembly and an electroslag pressure welding device. The electroslag pressure welding device includes an electrode part 5 and a welding box 6, which contains welding flux. The drilling assembly includes an electric drill 7, a connecting seat 8, a rotating part 9, a clamping assembly 10, and a telescopic component. The telescopic rod 11 is drivable and is located between the connecting seat 8 and the vehicle body 1. The rotating part 9 is drivable and is rotatably mounted on the bottom of the connecting seat 8. When drilling, the clamping assembly 10 clamps or releases the electric drill 7. The rotating part 9 is used to drive the electric drill 7 to rotate. The telescopic rod 11 drives the welding box 6 to rise and fall vertically to apply downward pressure to the electric drill 7. When welding, the clamping assembly 10 clamps the reinforcing bar 4. The telescopic rod 11 moves the welding box 6 to the connection point of the reinforcing bar 4. The electrode part 5 energizes the reinforcing bar 4 located in the feeding channel 23 to complete the welding.

[0039] After starting the telescopic rod 11 and adjusting the electric drill 7 to the designated lower position, start the telescopic rod 11 and drive the electric drill 7 to rotate, so that the electric drill 7 drills a hole downwards. After drilling is completed, the clamping assembly 10 releases the electric drill 7, the vehicle body 1 rises, and the reinforcing bar 4 falls through the material drop channel. Then, the welding box 6 is driven to move to the connection point between the reinforcing bar 4 and the electric drill 7. The electroslag pressure welding device clamps the lower drill bit and the upper reinforcing bar 4, starts the power supply to perform welding, and then lifts upwards to continue welding repeatedly to complete the rebar installation. This patent can replace welding and drilling in narrow openings that cannot be constructed manually, avoids dangerous construction for personnel, and solves the problem that people cannot enter narrow openings to weld and that rebar cannot be installed at the bottom of narrow openings.

[0040] In this embodiment, the vehicle body 1 serves as the main load-bearing component. The vehicle body 1 is divided into upper and lower split bodies. The moving component is located on the lower body and is a drive wheel. The drive wheel is driven by a remote control method using existing technology. Here, how to drive the vehicle body 1 to move and steer will not be described in detail.

[0041] In this embodiment, the device is placed at an opening or protruding component (a hollow, narrow steel pipe, or a deep, narrow hole). Once in the designated position, the fixing device 2 clamps the opening or both sides of the component. The fixing device 2 is located on the lower body of the vehicle. In this embodiment, the fixing device 2 includes two clamping plates spaced laterally. Each clamping plate has a clamping part for fixing the reinforcing bar 4 or the drill bit. The clamping part has balls that rotatably mount on the inner wall of the clamping part, with multiple balls spaced apart along the inner wall, allowing the clamping part to hold the reinforcing bar 4. This allows the drill bit to rotate without affecting its drilling. A driving component is provided on the vehicle body 1. This driving component drives the two clamping plates to face each other or move away from each other. In this embodiment, the driving component is a bidirectional screw.

[0042] In this embodiment, the upper and lower vehicle bodies are connected by an electric push rod and a guide rod. The electric push rod is used to drive the upper vehicle body 1 to rise and fall. A drilling and welding device is installed on the upper vehicle body. When the upper vehicle body is pushed up and down by the electric push rod, the drilling and welding device rises and falls along with it.

[0043] In this embodiment, a pressure detection sensor 17 is provided at the movable end of the telescopic rod 11. The pressure detection sensor 17 is used to detect the pressure on the connecting seat 8. A control system is provided inside the vehicle body 1. The control system uses a CPU and its peripheral circuits, which are existing technologies and will not be described in detail here. The control system has a preset pre-tightening pressure value, which is used to detect whether the electric drill 7 is kept in a tight state against the hole or component, and the electric drill 7 can be detected to have disengaged by the corresponding pressure value.

[0044] After drilling is completed, the clamping assembly 10 separates from the drill 7, fixing the drill 7 to the hole or component. The clamping assembly 10 and the telescopic rod 11 are connected and extended. In this embodiment, the telescopic rod 11 is an electric cylinder. The telescopic rod 11 is located between the connecting seat 8 and the vehicle body 1. When drilling, the telescopic rod 11 expands, applying downward pressure to the drill 7, causing the drill 7 to press firmly against the hole or component, making drilling more convenient and efficient.

[0045] In this embodiment, the rotating part 9 is rotatably mounted on the bottom of the connecting seat 8. In this embodiment, the connecting seat 8 is provided with a driving member 12, which is a motor, a driving gear, and a driven gear. The motor drives the driving gear to rotate, and the driven gear is coaxially mounted on the rotating part 9. The driving gear and the driven gear mesh, thereby driving the rotating part 9 to rotate. The axis of the rotating part 9 and the connecting seat 8 is provided with a feeding channel 23 that communicates with the material drop channel. The steel bar 4 located in the material drop channel falls into the feeding channel 23 and can continue to fall from the feeding channel 23.

[0046] When drilling, the clamping assembly 10 clamps or releases the electric drill 7, the rotating part 9 drives the electric drill 7 to rotate, and the telescopic rod 11 drives the welding box 6 to rise and fall in the vertical direction to apply downward pressure to the electric drill 7; when welding, the clamping assembly 10 clamps the reinforcing bar 4, the telescopic rod 11 moves the welding box 6 to the connection point of the reinforcing bar 4, and the electrode part 5 energizes the reinforcing bar 4 located in the feeding channel 23 to complete the welding.

[0047] In this embodiment, the electrode part 5 is located at the outlet of the material feeding channel, and the vehicle body 1 has a built-in power supply for charging the electrode part 5. An insulating layer is installed inside the vehicle body 1. After the electrode part 5 is energized, the insulating layer insulates the interior of the vehicle body 1, ensuring that current can only be conducted through the reinforcing bar 4, thus guaranteeing the safety of the interior of the vehicle body 1. During welding, the welding box 6 is first moved to the joint, then filled with welding flux, and then moved upwards a certain distance. The power is then turned on, causing the welding box 6 to form an electroslag pool, melting the reinforcing bar 4. Then, the telescopic component extends, slowly lowering the reinforcing bar 4. After the power is cut off, the telescopic component quickly extends, extruding the molten metal and slag to form a joint. A pressure sensor is used during this process to detect the pressure of the reinforcing bar 4 during welding, thereby determining whether the welding of the reinforcing bar 4 is secure. At this time, the fixing device 2 fixes the welded reinforcing bar 4 or the electric drill 7 to ensure concentricity.

[0048] In this embodiment, the welding box 6 includes a first welding box and a second welding box. A connector 13 is provided on the connecting seat 8. The first welding box and the second welding box are disposed on the connecting seat 8 through corresponding connectors 13. The connectors 13 can drive the first welding box and the second welding box to move towards or away from each other. In this embodiment, the connector 13 is an L-shaped part, with an electric cylinder arranged horizontally and another electric cylinder arranged vertically, together forming an L-shape. This allows the welding box 6 to move vertically and horizontally, closing or opening the welding box 6, and simultaneously adjusting the height of the welding box 6.

[0049] In this embodiment, a flux storage chamber for storing welding flux is provided inside the vehicle body 1. The welding flux is loaded into the flux storage chamber. A material conveying channel is provided inside the connecting seat 8. A pipe 15 is provided between the flux storage chamber and the material conveying channel. In this embodiment, the pipe 15 is a corrugated pipe that can extend and retract vertically. The rotating part 9 has a discharge hole that communicates with the material conveying channel. When discharging welding flux, the rotating part 9 is activated to make the welding flux fall evenly into the welding box 6, avoiding uneven accumulation of welding flux and affecting the welding effect. In this embodiment, a valve is provided at the pipe 15.

[0050] The inner wall of the solder box 6 is provided with a guide surface 14. The solder flux inside the solder box 6 can be separated from the solder box 6 through the guide surface 14. After the first solder box and the second solder box are separated, the solder flux inside the solder box 6 falls to the ground through the guide surface 14. With the rapid extension and retraction of the telescopic rod 11, the solder flux inside the solder box 6 is shaken off, making it convenient for the next use.

[0051] A ball bearing 16 is provided on the inner wall of the welding box 6 where it contacts the electric drill 7. A fixing groove is provided on the inner wall of the electric drill 7, and an elastic element is provided in the fixing groove. The elastic element is used to drive the ball bearing 16 to move outward. When the elastic element is in a fully compressed state, the ball bearing 16 protrudes slightly from the inner wall. When the welding box 6 is closed, the ball bearing 16 contacts the electric drill 7. When the electric drill 7 rotates, the ball bearing 16 acts as a bearing to facilitate the rotation of the electric drill 7.

[0052] In this embodiment, a limiting member 18 is provided on the side wall of the material dropping channel. The limit member 18 can be driven to extend so that the movable end of the limit member 18 abuts against the steel bar 4 in the material dropping channel. Specifically, the limit member 18 includes an electric cylinder and a rubber pad. When drilling and welding are performed, it prevents the remaining steel bar 4 from falling out of the material dropping channel and restricts its sliding in the material dropping channel, ensuring that the steel bar 4 located in the material dropping channel rises and falls together with the vehicle body 1 during the welding process.

[0053] In this embodiment, a moving component for moving the steel bar 4 to the discharge channel is provided in the storage bin 3. The moving component includes a moving plate 19 and a spring 20. The moving plate 19 is slidably disposed in the storage bin 3. The spring 20 is used to drive the moving plate 19 to move towards the discharge channel, so that the steel bar 4 moves towards the discharge channel under the action of the moving plate 19 and falls out of the discharge channel.

[0054] In this embodiment, a limiting member 21 is provided inside the storage chamber 3. The limiting member 21 can be manipulated to restrict the movement of the reinforcing bars 4 inside the storage chamber 3 towards the material discharge channel. Specifically, the limiting member 21 is an electric cylinder and a rubber pad. When one of the reinforcing bars 4 falls into the material discharge channel, the limiting member 21 extends to press against the remaining reinforcing bars 4 in the storage chamber 3, preventing them from entering the material discharge channel and separating the two to prevent electrical conduction.

[0055] In this embodiment, a sensor, specifically an infrared sensor, is installed in the material drop channel to detect whether a steel bar 4 has fallen into the material drop channel. When detected, the limiting component 21 is activated.

[0056] The dust collection component 22 includes an adsorption element and a debris compartment disposed on the vehicle body 1. The adsorption element is used to suck debris into the debris compartment. The adsorption element is a vacuum cleaner. The debris compartment is built into the vehicle body 1 and is used to absorb fallen electroslag. This is existing technology and will not be described in detail here.

[0057] By adopting the above technical solution, the drilling and rebar installation process has been automated, which not only solves the problem of drilling and rebar installation in narrow spaces, but also enables automatic rebar installation and improves work efficiency.

[0058] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for drilling holes for rebar installation in narrow pits, characterized in that: The construction steps include the following: S1: Construction preparation: Install the electric drill on the rotating part of the vehicle body, clamp the electric drill with the clamping assembly, and place the steel bars in the storage compartment of the vehicle body; S2: After moving the vehicle body to the designated position, activate the fixing device to secure the vehicle body; S3: Drilling: Extend the telescopic rod to press the electric drill against the hole to be drilled. The rotating part is driven to rotate, and at the same time, the telescopic rod applies downward pressure to make the electric drill drill. After drilling to the specified depth, the clamping assembly releases the electric drill, and the telescopic rod retracts. S4: Rebar installation: The moving component in the storage bin drives the rebar in the storage bin to move towards the material drop channel, so that the rebar moves through the material drop channel to the top of the electric drill. The welding box installed on the vehicle body moves to the joint of the rebar. The welding flux on the vehicle body is delivered to the welding box through the pipeline. The drilling and welding device is started, so that the electrode part located in the material drop channel is energized to perform welding. S5: After welding is completed, the welding box is opened to allow the welding flux inside the welding box to fall off. The vehicle body is a split upper and lower body. The upper body and the lower body are connected by an electric push rod and a guide rod. When in use, the electric push rod drives the upper body to rise so that the clamping assembly clamps the newly welded steel bar. S6: Repeat steps S4-S5 until the rebar installation is complete; The vehicle body, serving as the main load-bearing component, has a movable assembly that allows it to be driven to move. A fixing device is installed on the vehicle body, and this device has a clamping part that clamps the opening or both sides of a component to restrict the movement of the vehicle body. The storage bin has a material discharge channel through which the reinforcing bars can pass. The drilling and welding device includes a drilling assembly and an electroslag pressure welding device. The electroslag pressure welding device includes an electrode and a welding box containing welding flux. The drilling assembly includes an electric drill, a connecting seat, and a rotating... The device comprises a clamping assembly and a telescopic rod, the telescopic rod being drivably extended and retractable, and disposed between a connecting seat and a vehicle body. A rotating part is drivably rotatably fitted to the bottom of the connecting seat. During drilling, the clamping assembly clamps or releases the electric drill, the rotating part drives the electric drill to rotate, and the telescopic rod drives the welding box to rise and fall vertically to apply downward pressure to the electric drill. During welding, the clamping assembly clamps the reinforcing bar, the telescopic rod moves the welding box to the joint of the reinforcing bar, and the electrode part energizes the reinforcing bar located in the feeding channel to complete the welding.

2. The drilling method for rebar installation in narrow pits according to claim 1, characterized in that: The welding box includes a first welding box and a second welding box. A connector is provided on the connecting seat. The first welding box and the second welding box are disposed on the connecting seat through corresponding connectors. The connectors can drive the first welding box and the second welding box to move towards each other or away from each other.

3. The drilling method for rebar installation in narrow pits according to claim 1, characterized in that: The vehicle body is equipped with a flux storage chamber for storing welding flux, the connecting seat is equipped with a material conveying channel, a pipe is provided between the flux storage chamber and the material conveying channel, and the rotating part is provided with a discharge hole communicating with the material conveying channel; when discharging welding flux, the rotating part is activated to make the welding flux fall evenly into the welding box, avoiding uneven accumulation of welding flux.

4. The drilling method for rebar installation in narrow pits according to claim 1, characterized in that: The inner wall of the welding box that contacts the electric drill is equipped with ball bearings; when the electric drill rotates, the ball bearings act as bearings to facilitate the rotation of the electric drill.

5. The drilling method for rebar installation in narrow pits according to claim 1, characterized in that: A limiting member is provided on the side wall of the feeding channel. The limiting member can be driven to extend so that the movable end of the limiting member abuts against the reinforcing bar in the feeding channel.

6. The drilling method for rebar installation in narrow pits according to claim 1, characterized in that: The storage chamber is equipped with a moving component for moving the steel bars to the discharge channel. The moving component includes a moving plate and a spring. The moving plate is slidably disposed in the storage chamber, and the spring is used to drive the moving plate to move towards the discharge channel. Under the action of the moving plate, the steel bars move closer to the discharge channel and fall out of the discharge channel.

7. The drilling method for rebar installation in narrow pits according to claim 6, characterized in that: The storage chamber is equipped with a limiting component that can be manipulated to restrict the movement of the steel bars inside the storage chamber towards the material discharge channel, thereby preventing the remaining steel bars from entering the material discharge channel and becoming conductive.

8. The drilling method for rebar installation in narrow pits according to claim 1, characterized in that: The movable end of the telescopic rod is equipped with a pressure detection sensor, which is used to detect the pressure on the connecting seat.

9. The drilling method for rebar installation in narrow pits according to claim 1, characterized in that: After all the rebars are installed in the S6, the dust collection system of the vehicle body is activated. The suction components of the dust collection system suck the fallen welding flux and debris into the debris compartment of the vehicle body.

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