Anchoring rod grouting support process and grouting equipment

Abstract

This invention belongs to the field of grouting support technology, specifically an anchor bolt grouting support process and grouting equipment. The equipment includes a conveyor box fixedly connected to the top of a vehicle frame, a motor fixedly installed at the end of the vehicle frame, a conveying pipe fixedly installed at the upper end of the conveyor box, a cement interface fixedly connected to the side wall of the conveying pipe, a second sealing interface fixedly installed at the end of the cement interface pipe, a first sealing interface slidably installed on the inner wall of the cement interface pipe, and an anchor bolt fixedly installed on the side wall of the first sealing interface. This invention uses rotating fan blades to stir the cement stationary at the cement pipe interface, preventing the cement from freezing in low-temperature environments. A limiting plate protects the screws, preventing the internal threads of the screws from becoming stiff due to cement during use. Additionally, an oil tank and oil pipe are added to facilitate lubrication after the screws are coated with cement, thus facilitating disassembly.

Description

Technical Field

[0001] This invention belongs to the field of grouting support, specifically an anchor bolt grouting support process and grouting equipment. Background Technology

[0002] Anchor bolt grouting is a step in anchor bolt construction. Anchor bolt construction first involves drilling holes in the rock mass, then inserting anchor bolts into the holes, and finally injecting cement grout into the holes. After the cement grout solidifies, the anchor bolts are secured. Then, a reinforced concrete beam or slab is constructed at the exposed end of the anchor bolt, and the anchor bolts are tensioned to hold these beams or slabs in place, thus stabilizing them. When grouting anchor bolts on slopes or in tunnels, the low temperature environment can cause the cement to freeze and solidify when the grouting pipes are replaced. This frozen cement can cause the joints or pipes to rupture, damaging the grouting equipment. Because the grouting cement cannot be stored for long periods and needs to be prepared and used immediately, damage to the joints can not only cause them to crack but also affect the grouting effect.

[0003] A patent application with publication number CN115401791A discloses a concrete grouting device for sealing and preventing overflow of anti-buoyancy anchor bolt holes. The device includes a grouting material tank with casters on its underside, a feeding component on top, a mixing component inside the tank, and a grouting component inside the tank. The grouting component is connected to the mixing component, and the front of the grouting material tank is connected to an anti-overflow component. The feeding component of this invention, through the cooperation of a separated feeding hopper and an adjusting component, can adjust the feeding speed of various added materials to form high-pressure grouting. The anti-overflow component automatically closes and surrounds the anchor hole during adjustment, effectively preventing grout overflow.

[0004] Therefore, the above-mentioned device can increase the grouting pressure and prevent grout overflow caused by excessive pressure during grouting. However, during use, multiple grouting pipes need to be grouted. This process requires disassembling and replacing the grouting pipe joints. When replacing, the grouting pipe joints must be closed to prevent cement from flowing out. In low-temperature conditions, the grout is prone to freezing. The grout near the joint is in a stagnant state and is prone to freezing at low temperatures, which can cause the cement to expand and cause the pipe opening to crack. In addition, the grout must be used in a timely manner. Replacement delays the construction period and affects the progress.

[0005] Therefore, the present invention provides an anchor bolt grouting support process and grouting equipment. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is: the anchor bolt grouting support process of this invention includes the following steps:

[0008] Step 1: Expand the excavation area and backfill the excavated area with backfill material. The backfill height should reach the connection between the upper and lower steps, and then compact it with an excavator.

[0009] Step 2: Erect pipe sheds and support them. Before constructing the pipe sheds, first erect one I25b type steel frame as a guide frame for the construction. The pipe sheds are spaced 0.4m apart in the circumference and 6.0m apart in the longitudinal direction, with a length of 9.0m per pipe. 10-16mm overflow holes are reserved on the pipe wall, with a hole spacing of 15-20cm, arranged in a quincunx pattern.

[0010] Step 3: Anchor bolt guide pipe support. The guide pipes are spaced 0.4m apart in the circumferential direction and 1.2m apart in the longitudinal direction, with a length of 3.0-3.5m per pipe. 6-8mm overflow holes are reserved on the pipe wall, with a hole spacing of 20-30cm, arranged in a quincunx pattern. The guide pipes are at an angle of 10-15° to the direction of the line.

[0011] Step 4: Grouting. Cement grout is used as the grouting material, and the grouting pressure is 0.5–1.0 MPa.

[0012] Step 5: Grouting quality inspection. After the anchor bolts are installed, the quality inspectors and supervising engineers will inspect and accept the installed anchor bolts.

[0013] An anchor bolt grouting device, applicable to the aforementioned anchor bolt grouting support process, includes a frame, a conveyor box fixedly connected to the top of the frame, a motor fixedly installed at the end of the frame, a conveyor pipe fixedly installed at the upper end of the conveyor box, a cement interface pipe fixedly connected to the side wall of the conveyor pipe, a second sealing interface fixedly installed at the end of the cement interface pipe, a first sealing interface slidably installed on the inner wall of the cement interface pipe, and an anchor bolt fixedly installed on the side wall of the first sealing interface.

[0014] Preferably, a valve is slidably installed inside the cement interface pipe, a rotating fixed plate is rolled inside the valve, a rotating fan blade is fixedly installed on the outer wall of the rotating fixed plate, a valve rotating column is fixedly installed inside the cement interface pipe, a fixed plate helical tooth is fixedly installed at the end of the rotating fixed plate, a fan blade power column is rolled inside the valve, and a fan blade bottom tooth is fixedly installed at the bottom end of the fan blade power column. The fan blade power column and the rotating fixed plate are driven by the meshing of the fan blade bottom tooth and the fixed plate helical tooth. When the cement interface pipe is full of cement, if cement needs to pass through the inner wall of the cement interface pipe, the valve rotating column needs to be rotated, so that the valve rotating column drives the valve to rotate. When the valve rotates to a position parallel to the channel of the cement interface pipe, the cement can penetrate the interior of the cement interface pipe. In winter, because of the low temperature, when the valve is closed... When cement is blocked, it will remain on the side wall of the valve. At this time, the low temperature and lack of flow will cause the cement to freeze, thus stopping its flow. This will solidify the cement blocking the valve side wall, making it difficult to pour cement. In addition, the cement contains moisture, which will expand under the influence of freezing, potentially causing the cement joint pipe to crack. To prevent the cement from freezing when the valve is closed, a rotating fan blade power column is used. The fan blade power column drives the bottom fan blade teeth to rotate, which in turn drives the fixed plate helical teeth to rotate. The fixed plate helical teeth drive the rotating fixed plate to rotate, which in turn drives the rotating fan blade to rotate. The rotating fan blade comes into contact with the cement, which agitates the cement near the valve, thus preventing the cement from freezing at low temperatures and causing the cement joint pipe to crack. This device can reduce the possibility of the joint freezing and cracking at low temperatures when replacing pipe joints.

[0015] Preferably, a power protection box is fixedly installed at the top of the cement interface pipe, a first power column is rolled inside the power protection box, a rebound column is fixedly installed at the top of the cement interface pipe, a second power column is slidably installed at the top of the rebound column, a third fixing plate is fixedly installed at the top of the cement interface pipe, a third power column is rolled inside the third fixing plate, a spring is fixedly installed at the end of the third power column, and the end of the spring is fixedly installed on the inner wall of the power protection box.

[0016] Preferably, a spring is fixedly installed at the bottom of the second power column, a second helical tooth is fixedly installed at the top of the second power column, a separation column is rolledly installed at the top of the power protection box, a separation plate is fixedly installed at the lower end of the separation column, a separation helical tooth is fixedly installed at the bottom of the separation plate, and a separation plate protrusion is fixedly installed at the lower end of the separation plate. When the valve is open, the flowing cement will drive the rotating fixed plate to rotate, which in turn drives the fan blade power column to rotate through the helical tooth of the fixed plate and the bottom tooth of the fan blade. The rotation of the fan blade power column drives the first power column to rotate, and the rotation of the first power column drives the third power column to rotate. When the mainspring is in the tightened state, the rotation of the third power column drives the helical teeth on the outer wall to mesh with the separation helical teeth, thereby driving the separation column to rotate. The rotation of the separation column causes the separation plate protrusion at the lower end of the separation plate to push up the second helical teeth at the lower end. The second helical teeth are fixedly installed at the top of the second power column, thereby causing the second power column to move downward and separate the helical teeth at the end of the second power column from those at the end of the first power column. This device can effectively separate the tightened mainspring from the rotation of the rotating fixed plate when the mainspring is tightened, thus protecting the continuous use of the mainspring.

[0017] Preferably, the top of the separating plate is provided with a separating plate groove, and the top of the power protection box is slidably connected with a separating locking post. When the spring is tightened, if there is no structure to prevent rebound, the spring will rebound and release the force when the second power column separates from the first power column. However, with the separating plate groove at the top of the separating plate and the separating locking post slidably connected to the top of the power protection box, when the third power column rotates and drives the separating helical teeth to rotate, the separating helical teeth drive the separating plate groove to rotate. When the separating helical teeth rotate to directly below the separating locking post, the separating locking post slides downward under the action of gravity, thereby locking the separating plate groove. This allows the spring to store and collect the power after the second power column separates from the first power column when the spring is tightened. This device can convert the force of the flowing cement into the force of the spring, and then release the force according to the angle of valve rotation, thereby converting it into a power source.

[0018] Preferably, a separation lifting column is fixedly installed at the top of the separation pin, and a separation lifting port is opened inside the separation lifting column. A release disc is fixedly installed on the outer wall of the top of the valve rotating column, and a disc protrusion is fixedly installed at the top of the release disc. When the spring is tightened, the separation pin engages with the separation helical teeth to store force. If release is required, the separation pin can be lifted. The separation lifting column is fixedly installed at the top of the separation pin, and a separation lifting port is provided inside the separation lifting column. The release disc is provided on the outer wall of the valve rotating column, and a disc protrusion is fixedly installed at the top of the release disc. The disc protrusion can cooperate with the separation lifting port, and the force of the spring can be released when the disc protrusion rotates to the position of the separation lifting port. This device can control the release time of the spring and release it according to the rotation angle of the release disc. The position of the disc protrusion is adjusted according to the angle of the valve, which is convenient for operation.

[0019] Preferably, the outer wall of the anchor rod is threaded with a screw, the inner wall of the screw is slidably mounted with a limiting plate, the side wall of the limiting plate is fixedly mounted with a limiting plate fixing ring, the screw is provided with a limiting plate inside, and the limiting plate is fixedly connected to the limiting plate fixing ring. When it is necessary to tighten the screw, the limiting plate fixing ring can be tapped or adjusted to loosen the screw, so that tightening or loosening the screw is more convenient and the efficiency of use is improved.

[0020] Preferably, a circular oil distribution pipe is fixedly installed on the side wall of the limiting plate fixing ring, and an oil pipe is fixedly installed at the top of the circular oil distribution pipe. An oil tank is fixedly installed at the top of the power protection box, and the oil pipe is fixedly installed on the side wall of the oil tank. The limiting plate has pipes and holes inside, and the limiting plate can slide inside the screw. The circular oil distribution pipe and the oil pipe are fixedly connected to the side wall of the limiting plate fixing ring. When the screw needs to be disassembled, the oil tank can be opened. The oil tank delivers lubricating oil to the inside of the limiting plate through the circular oil distribution pipe, and then delivers it to the inner wall of the screw through the small hole of the limiting plate for lubrication, reducing screw wear and the possibility of difficulty in disassembly.

[0021] Preferably, an oil valve switch is slidably installed on the side wall of the oil tank, and a separation side wall protrusion is fixedly installed on the side wall of the separation column. When the separation column rotates, the separation side wall protrusion on the outer wall of the separation column rotates accordingly. The rotation angle of the separation side wall protrusion can be matched with the rotation angle of the release disc. When the rotation of the release disc drives the disc protrusion to engage with the separation locking column, the third power column can drive the separation helical gear to rotate again. At this time, the valve rotates to the closed position of the cement interface pipe, thereby triggering the separation side wall protrusion and the lifting oil valve switch, thereby lubricating the screw. This device allows the screw to be disassembled when the valve is closed. The design allows for easy replacement, as lubricating oil passes through the limiting plate to lubricate the screws during disassembly, facilitating screw installation. A handle fixing plate is fixedly mounted on the top of the valve rotating column, and four handle support columns are fixedly mounted on the outer wall of the handle fixing plate. A rotating handle is fixedly mounted at the end of each handle support column. When the valve needs to be rotated, the rotating handle is grasped, causing the handle support columns and handle fixing plate to rotate. The handle fixing plate then rotates the lower valve rotating column, which in turn rotates the valve fixedly mounted at the bottom, thus achieving convenient valve rotation. This device saves effort during rotation.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. The anchor bolt grouting support process and grouting equipment described in this invention uses rotating fan blades to stir the cement that is stationary at the cement pipe interface. The force collected and released by the spring drives the rotating fan blades to rotate. During the construction of the snow mountain tunnel, which is in a low-temperature environment, this method is used to prevent the cement from hardening at low temperatures and to prevent the cement pipe structure from cracking due to the expansion of the cement after hardening.

[0024] 2. The anchor bolt grouting support process and grouting equipment described in this invention protects the screws with a limiting plate to prevent the screws from becoming stiff due to cement during use, which would make the screws difficult to disassemble. At the same time, the addition of an oil tank and oil pipe allows for easy lubrication of the screws after they become covered with cement, depending on the valve status, thus facilitating disassembly.

[0025] 3. The anchor bolt grouting support process and grouting equipment described in this invention can improve the sealing of the interface and pipe by designing the anchor bolt and cement pipe interface, preventing slurry leakage when cement is introduced. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is an overall structural diagram of the invention;

[0028] Figure 2 This is a separate diagram of the overall structure of the present invention;

[0029] Figure 3 This is an enlarged view of the cement pipe interface of the present invention;

[0030] Figure 4 This is a cross-sectional view of the cement pipe interface of the present invention;

[0031] Figure 5 This is a cross-sectional view of the cement pipe interface of the present invention;

[0032] Figure 6 This is a diagram of the transmission structure of the present invention;

[0033] Figure 7 This is a diagram showing the connection between the screws and anchor rods of the present invention;

[0034] Figure 8 This is a cross-sectional view of the internal structure of the screw of the present invention;

[0035] Figure 9 This is a cross-sectional view of the transmission structure and handle of the present invention;

[0036] In the picture:

[0037] 1. Frame; 11. Motor; 12. Conveyor box; 13. Conveyor pipe;

[0038] 2. Cement interface pipe; 201. Second sealing interface; 21. Rotating fixing plate; 211. Fixing plate helical teeth; 22. Rotating fan blade; 23. Rotating handle; 231. Handle support column; 232. Handle fixing plate; 24. Release disc; 241. Disc protrusion; 25. Valve; 26. Fan blade power column; 261. Fan blade bottom teeth; 27. Valve rotating column;

[0039] 31. First power column; 32. Rebound column; 33. Spring; 34. Second power column; 341. Second helical tooth; 35. Third power column; 351. Third fixing plate; 36. Spring; 37. Power protection box; 38. Separation column; 381. Separation side wall protrusion; 382. Separation helical tooth; 39. Separation plate; 391. Separation plate protrusion; 392. Separation plate groove; 393. Separation locking column; 394. Separation lifting column; 395. Separation lifting port;

[0040] 41. Oil valve switch; 42. Oil tank; 43. Oil pipe; 44. Circular oil distribution pipe; 45. Limiting plate; 451. Oil outlet; 46. Limiting plate retaining ring; 47. Screw;

[0041] 5. Anchor bolt; 51. First sealing interface. Detailed Implementation

[0042] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0043] Example 1

[0044] like Figure 1-9 As shown in the figure, the anchor bolt grouting support process of this invention includes the following steps:

[0045] Step 1: Expand the excavation area and backfill the excavated area with backfill material. The backfill height should reach the connection between the upper and lower steps, and then compact it with an excavator.

[0046] Step 2: Erect pipe sheds and support them. Before constructing the pipe sheds, first erect one I25b type steel frame as a guide frame for the construction. The pipe sheds are spaced 0.4m apart in the circumference and 6.0m apart in the longitudinal direction, with a length of 9.0m per pipe. 10-16mm overflow holes are reserved on the pipe wall, with a hole spacing of 15-20cm, arranged in a quincunx pattern.

[0047] Step 3: Anchor bolt guide pipe support. The guide pipes are spaced 0.4m apart in the circumferential direction and 1.2m apart in the longitudinal direction, with a length of 3.0-3.5m per pipe. 6-8mm overflow holes are reserved on the pipe wall, with a hole spacing of 20-30cm, arranged in a quincunx pattern. The guide pipes are at an angle of 10-15° to the direction of the line.

[0048] Step 4: Grouting. Cement grout is used as the grouting material, and the grouting pressure is 0.5–1.0 MPa.

[0049] Step 5: Grouting quality inspection. After the anchor bolts are installed, the quality inspectors and supervising engineers will inspect and accept the installed anchor bolts.

[0050] like Figure 1 As shown, an anchor bolt grouting device is applicable to the anchor bolt grouting support process described above. The device includes a frame 1, with a conveyor box 12 fixedly connected to the top of the frame 1. A motor 11 is fixedly installed at the end of the frame 1. A conveying pipe 13 is fixedly installed at the upper end of the conveyor box 12. A cement interface pipe 2 is fixedly connected to the side wall of the conveying pipe 13. A second sealing interface 201 is fixedly installed at the end of the cement interface pipe 2. A first sealing interface 51 is slidably installed on the inner wall of the cement interface pipe 2. An anchor bolt 5 is fixedly installed on the side wall of the first sealing interface 51.

[0051] Specifically, in use, the anchor rod 5 and the cement interface pipe 2 are connected by threads. The end of the anchor rod 5 is fixedly installed with a first sealing interface 51, and the end of the cement interface pipe 2 is fixedly installed with a second sealing interface 201. The first sealing interface 51 is aligned with the interface of the cement interface pipe 2 and then connected. After that, the outer wall of the first sealing interface 51 fits against the inner wall of the cement interface pipe 2, and the outer wall of the second sealing interface 201 fits against the side wall of the anchor rod 5, thus completing the connection between the anchor rod 5 and the cement interface pipe 2.

[0052] like Figure 3-5As shown, a valve 25 is slidably installed inside the cement interface pipe 2, a rotating fixing plate 21 is rolled inside the valve 25, a rotating fan blade 22 is fixedly installed on the outer wall of the rotating fixing plate 21, a valve rotating column 27 is fixedly installed inside the cement interface pipe 2, a fixing plate helical tooth 211 is fixedly installed at the end of the rotating fixing plate 21, a fan blade power column 26 is rolled inside the valve 25, a fan blade bottom tooth 261 is fixedly installed at the bottom end of the fan blade power column 26, and the fan blade power column 26 and the rotating fixing plate 21 are driven by the meshing of the fan blade bottom tooth 261 and the fixing plate helical tooth 211.

[0053] Specifically, when the cement interface pipe 2 is filled with cement, if the cement needs to pass through the inner wall of the cement interface pipe 2, the valve rotating column 27 needs to be rotated, causing the valve rotating column 27 to drive the valve 25 to rotate. When the valve 25 is rotated to a position parallel to the channel of the cement interface pipe 2, the cement can pass through the interior of the cement interface pipe 2. In winter, due to the low temperature, when the valve 25 is closed, the cement will remain on the side wall of the valve 25. At this time, the low temperature and lack of flow will cause the cement to freeze, thus stopping the flow. The cement blocking the side wall of the valve 25 will become solid, making it difficult to pour cement. In addition, the cement contains moisture, and when it freezes, the moisture will affect the process. Expansion can cause the cement interface pipe 2 to crack. To prevent the cement from freezing when the valve 25 is closed, the fan blade power column 26 is rotated. The fan blade power column 26 drives the bottom fan blade tooth 261 at the bottom to rotate. The rotation of the bottom fan blade tooth 261 drives the fixed plate helical tooth 211 that meshes with it to rotate. The fixed plate helical tooth 211 drives the rotating fixed plate 21 to rotate, thereby driving the rotating fan blade 22 to rotate. The rotating fan blade 22 comes into contact with the cement and can stir the cement near the valve 25, thereby preventing the cement from freezing at low temperatures and causing the cement interface pipe 2 to crack. This device can reduce the possibility of the interface freezing and cracking at low temperatures when replacing the pipe interface.

[0054] like Figure 5-6 As shown, a power protection box 37 is fixedly installed at the top of the cement interface pipe 2. A first power column 31 is rolled inside the power protection box 37. A rebound column 32 is fixedly installed at the top of the cement interface pipe 2. A second power column 34 is slidably installed at the top of the rebound column 32. A third fixing plate 351 is fixedly installed at the top of the cement interface pipe 2. A third power column 35 is rolled inside the third fixing plate 351. A spring 36 is fixedly installed at the end of the third power column 35. The end of the spring 36 is fixedly installed on the inner wall of the power protection box 37.

[0055] Specifically, when the valve 25 inside the cement interface pipe 2 is open, the flowing cement will cause the rotating fan blade 22 to swing. The swinging of the rotating fan blade 22 will cause the rotating fixed plate 21 to rotate. When the rotating fixed plate 21 rotates, it will cause the fan blade power column 26 to rotate. The rotation of the fan blade power column 26 will cause the gear at the top of the fan blade power column 26 to mesh with the gear at the end of the first power column 31, thereby causing the first power column 31 to rotate. The rotation of the first power column 31 will mesh with the gear at the end of the second power column 34, causing the second power column 34 to rotate. The rotation of the second power column 34 will cause the third power column 35 inside the third fixed plate 351 to rotate. The rotation of the third power column 35 will cause the spring 36 fixedly connected to the end of the third power column 35 to retract. When the spring 36 is retracted, it is only necessary to rotate the valve rotating column 27. The valve rotating column 27 will drive... The bottom valve 25 rotates, thus closing the cement flow inside the cement interface pipe 2. At this time, the force stored in the spring 36 drives the third power column 35 to rotate. The gear at the end of the third power column 35 meshes with the gear at the end of the second power column 34, thereby driving the second power column 34 to rotate. The rotation of the second power column 34 meshes with the gear at the end of the first power column 31, thereby driving the first power column 31 to rotate. The first power column 31 then meshes with the gear at the top of the fan blade power column 26, thereby driving the fan blade power column 26 and the rotating fixed plate 21 to rotate. Then, the rotating fan blades 22 on the outer wall of the rotating fixed plate 21 agitate the cement that is stationary on the side wall of the valve 25 after the valve is closed, thereby preventing freezing. This device can store force when the cement is flowing and then release the force when the valve 25 is closed, thereby preventing the problem of cement freezing when it is stationary.

[0056] like Figure 5-6 As shown, a spring 33 is fixedly installed at the bottom end of the second power column 34, a second helical tooth 341 is fixedly installed at the top end of the second power column 34, a separation column 38 is rolledly installed at the top end of the power protection box 37, a separation plate 39 is fixedly installed at the lower end of the separation column 38, a separation helical tooth 382 is fixedly installed at the bottom end of the separation plate 39, and a separation plate protrusion 391 is fixedly installed at the lower end of the separation plate 39.

[0057] Specifically, when valve 25 is open, the flowing cement drives the rotating fixed plate 21 to rotate. This rotation, via the fixed plate's helical teeth 211 and the fan blade's bottom teeth 261, drives the fan blade power column 26 to rotate. The rotation of the fan blade power column 26 drives the first power column 31 to rotate, which in turn drives the third power column 35 to rotate. When the spring 36 is tightened, the rotation of the third power column 35 drives the helical teeth on the outer wall to mesh with the separating helical teeth 382, ​​thereby driving the separating column 38 to rotate. The rotation of the separating column 38 then drives the separating plate 39 to rotate downwards. The separation plate protrusion 391 at the end pushes up the second helical tooth 341 at the lower end, and the second helical tooth 341 is fixedly installed on the top of the second power column 34, thereby causing the second power column 34 to move downward and separate the second power column 34 from the helical tooth at the end of the first power column 31. This device can effectively separate the wound mainspring 36 from the rotation of the rotating fixed plate 21 when the mainspring 36 is wound up, thus protecting the continuous use of the mainspring 36.

[0058] like Figure 9 As shown, the top of the separation plate 39 is provided with a separation plate groove 392, and the top of the power protection box 37 is slidably connected with a separation pin 393.

[0059] Specifically, when the spring 36 is tightened, if there is no structure to prevent springback, the spring 36 will spring back and release the force when the second power column 34 separates from the first power column 31. The top of the separating plate 39 is provided with a separating plate groove 392, and the top of the power protection box 37 is slidably connected with a separating locking post 393. When the third power column 35 rotates and drives the separating helical tooth 382 to rotate, the separating helical tooth 382 drives the separating plate groove 392 to rotate. When the separating helical tooth 382 rotates to directly below the separating locking post 393, the separating locking post 393 slides downward under the action of gravity, thereby locking the separating plate groove 392. This allows the spring 36 to store and collect the power after the second power column 34 separates from the first power column 31 when the spring 36 is tightened. This device can convert the force of the flowing cement into the force of the spring 36, and then release the force according to the rotation angle of the valve 25, thereby converting it into a power source.

[0060] like Figure 9 As shown, a separation lifting column 394 is fixedly installed at the top of the separation column 393, and a separation lifting port 395 is opened inside the separation lifting column 394. A release disc 24 is fixedly installed on the outer wall of the top of the valve rotating column 27, and a disc protrusion 241 is fixedly installed at the top of the release disc 24.

[0061] Specifically, when the spring 36 is tightened, the release pin 393 engages with the release helical tooth 382 to store force. If release is required, the release pin 393 is lifted. A release lifting pin 394 is fixedly installed at the top of the release pin 393. The release lifting pin 394 has a release lifting port 395 inside. The outer wall of the valve rotating pin 27 is provided with a release disc 24. A disc protrusion 241 is fixedly installed at the top of the release disc 24. The disc protrusion 241 can cooperate with the release lifting port 395. When the disc protrusion 241 rotates to the position of the release lifting port 395, the force of the spring 36 can be released. This device can control the release time of the spring 36 and release it according to the rotation angle of the release disc 24. The position of the disc protrusion 241 is adjusted according to the angle of the valve 25, which is convenient for operation.

[0062] like Figure 7 As shown, the outer wall of the anchor rod 5 is threaded with a screw 47, the inner wall of the screw 47 is slidably mounted with a limiting plate 45, and the side wall of the limiting plate 45 is fixedly mounted with a limiting plate fixing ring 46.

[0063] Specifically, the screw 47 has a limiting plate 45 inside, which is fixedly connected to the limiting plate fixing ring 46. When it is necessary to tighten the screw 47, the limiting plate fixing ring 46 can be tapped or adjusted to loosen the screw 47, making it more convenient to tighten or loosen the screw 47 and improving the efficiency of use.

[0064] like Figure 7 As shown, a circular oil distribution pipe 44 is fixedly installed on the side wall of the limiting plate fixing ring 46, and an oil pipe 43 is fixedly installed on the top end of the circular oil distribution pipe 44. An oil tank 42 is fixedly installed on the top end of the power protection box 37, and the oil pipe 43 is fixedly installed on the side wall of the oil tank 42.

[0065] Specifically, the limiting plate 45 has pipes and holes inside, and the limiting plate 45 can slide inside the screw 47. The side wall of the limiting plate fixing ring 46 is fixedly connected with a circular oil distribution pipe 44 and an oil pipe 43. When the screw 47 needs to be disassembled, the oil tank 42 can be opened. The oil tank 42 delivers lubricating oil to the inside of the limiting plate 45 through the circular oil distribution pipe 44, and then delivers it to the inner wall of the screw 47 through the small hole of the limiting plate 45 for lubrication, reducing the wear of the screw 47 and the possibility of it being difficult to disassemble.

[0066] like Figure 4-8 As shown, an oil valve switch 41 is slidably provided on the side wall of the oil tank 42, and a separation side wall protrusion 381 is fixedly installed on the side wall of the separation column 38.

[0067] Specifically, when the separating column 38 rotates, the separating sidewall protrusion 381 on the outer wall of the separating column 38 rotates accordingly. The rotation angle of the separating sidewall protrusion 381 can be matched with the rotation angle of the release disc 24. When the rotation of the release disc 24 causes the disc protrusion 241 to engage with the separating locking column 393, the third power column 35 can drive the separating helical gear 382 to rotate again. At this time, the valve 25 rotates to the closed position of the cement interface pipe 2, thereby triggering the separating sidewall protrusion 381 and the lifting oil valve switch 41, thereby lubricating the screw 47. This device allows the screw 47 to be disassembled and replaced when the valve 25 is closed. During disassembly, the lubricating oil is lubricated through the limit plate 45. The screw 47 is installed to facilitate the installation of the valve rotating column 27. A handle fixing plate 232 is fixedly installed on the top of the valve rotating column 27. Four handle support columns 231 are fixedly installed on the outer wall of the handle fixing plate 232. A rotating handle 23 is fixedly installed at the end of the handle support column 231. When it is necessary to rotate the valve 25, hold the rotating handle 23. The rotating handle 23 drives the handle support column 231 and the handle fixing plate 232 to rotate. The handle fixing plate 232 drives the lower valve rotating column 27 to rotate. The valve rotating column 27 drives the valve 25 fixedly installed at the bottom to rotate, thus achieving the purpose of facilitating the rotation of the valve 25. This device can save effort during the rotation process.

[0068] Working principle: First, connect the anchor rod 5 to the cement interface pipe 2 and tighten it with screw 47. Then, rotate the rotating handle 23. Rotating the handle 23 drives the handle fixing plate 232, which in turn rotates the valve rotating column 27, causing the valve 25 to rotate to the open state. A release disc 24 is fixedly connected to the outer wall of the valve rotating column 27. The disc protrusion 241 at the top of the release disc 24 is located away from the separation lifting port 395. The second power column 34 at the top of the cement interface pipe 2 engages with the helical teeth at the ends of the third power column 35 and the first power column 31. The separation plate protrusion 391 is located away from the second helical tooth 341. The separation side wall protrusion 381 on the outer wall of the separation column 38 is located away from the oil valve switch 41. At this time, Cement is introduced into the cement interface pipe 2. The flowing cement causes the rotating fan blade 22 to oscillate. The oscillation of the rotating fan blade 22 causes the rotating fixed plate 21 to rotate. The rotation of the rotating fixed plate 21 causes the helical teeth 211 of the fixed plate to mesh with the bottom teeth 261 of the fan blade, thereby causing the fan blade power column 26 to rotate. The rotation of the fan blade power column 26 causes the first power column 31 to mesh with the second power column 34. The second power column 34 also rotates synchronously. The rotation of the second power column 34 causes the third power column 35 to rotate. The rotation of the third power column 35 causes the spring 36 to contract. At the same time, the helical teeth on the outer wall of the third power column 35 mesh with the separation helical teeth 382, ​​thereby causing the separation column 38 and the separation plate 39 to rotate. When the third power column 35 continues to rotate, it causes the separation plate 39 to rotate, and the separation... When the plate groove 392 rotates to the bottom of the separating pin 393, the separating pin 393 presses against the separating plate groove 392, thereby stopping the separation plate 39 from rotating. The separating plate protrusion 391 at the bottom of the separating plate 39 abuts against the second helical tooth 341, causing the second power column 34 to separate from the helical teeth at the ends of the first power column 31 and the third power column 35, thus preventing the spring 36 from tightening. Then, rotating the rotary handle 23 closes the valve 25. At this time, the disc protrusion 241 at the top of the release disc 24 lifts the separating lifting column 394, allowing the second helical tooth 341 to engage with the separating lifting port 395. The separating lifting column 394 drives the separating pin 393 to move upward, and the separating helical tooth 382, ​​driven by the spring 36, engages with the helical teeth on the outer wall of the third power column 35. This causes the separating plate 39 to rotate, which in turn causes the separating plate protrusion 391 to rotate. The rotation of the separating plate protrusion 391 prevents it from pressing against the second helical tooth 341, allowing the helical teeth at both ends of the second helical tooth 341 to mesh with the third power column 35 and the first power column 31. This causes the first power column 31 to rotate, which in turn causes the fan blade power column 26 and the rotating fixed plate 21 to rotate. This causes the rotating fan blade 22 to oscillate inside the cement interface pipe 2. Even if the cement inside the cement interface pipe 2 is stationary, the oscillation of the rotating fan blade 22 prevents the stationary cement inside the cement interface pipe 2 from freezing. Meanwhile, the separating side wall protrusion 381, which is rolled on the outer wall of the separating column 38, also presses against the oil valve switch 41.This releases the lubricating oil from the oil tank 42, which is then transported to the limiting plate 45 via the oil pipe 43. The oil then contacts the screw 47 through the oil outlet 451, allowing for the removal and installation of the screw 47. If valve 25 needs to be reopened, the above steps are repeated. This invention uses a rotating fan blade 22 to stir the cement stationary at the cement pipe interface 2. The force collected and released by the spring 36 drives the rotating fan blade 22 to rotate, preventing the cement from hardening at low temperatures and preventing the cement pipe structure from cracking due to expansion after hardening. The limiting plate 45 protects the screw 47, preventing the screw from becoming difficult to remove due to the cement causing the internal threads to become stiff. The addition of the oil tank 42 and oil pipe 43 facilitates lubrication of the screw 47 after it becomes coated with cement, thus facilitating removal. The design of the anchor rod 5 and cement pipe interface 2 improves the sealing of the interface and pipe, and the added threads prevent leakage of mud when cement is introduced.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anchor bolt grouting device, characterized in that: This anchor bolt grouting equipment is suitable for an anchor bolt grouting support process, which includes the following steps: Step 1: Expand the excavation area and backfill the excavated area with backfill material. The backfill height should reach the connection between the upper and lower steps, and then compact it with an excavator. Step 2: Erect pipe sheds and support them. Before constructing the pipe sheds, first erect one I25b type steel frame as a guide frame for the construction. The pipe sheds are spaced 0.4m apart in the circumference and 6.0m apart in the longitudinal direction, with a length of 9.0m per pipe. 10-16mm overflow holes are reserved on the pipe wall, with a hole spacing of 15-20cm, arranged in a quincunx pattern. Step 3: Anchor bolt guide pipe support. The guide pipes are spaced 0.4m apart in the circumferential direction and 1.2m apart in the longitudinal direction. The length is 3.0-3.5m / pipe. 6-8mm overflow holes are reserved on the pipe wall. The holes are spaced 20-30cm apart and arranged in a quincunx pattern. The guide pipes are at an angle of 10-15° to the tunnel line direction. Step 4: Grouting. Cement grout is used as the grouting material, and the grouting pressure is 0.5–1.0 MPa. Step 5: Grouting quality inspection. After the anchor bolts are installed, the quality inspectors and supervising engineers will inspect and accept the installed anchor bolts. The grouting equipment includes a frame (1), a conveyor box (12) is fixedly connected to the top of the frame (1), a motor (11) is fixedly installed at the end of the frame (1), a conveyor pipe (13) is fixedly installed at the upper end of the conveyor box (12), a cement interface pipe (2) is fixedly connected to the side wall of the conveyor pipe (13), a second sealing interface (201) is fixedly installed at the end of the cement interface pipe (2), a first sealing interface (51) is slidably installed on the inner wall of the cement interface pipe (2), and an anchor rod (5) is fixedly installed on the side wall of the first sealing interface (51). A valve (25) is slidably installed inside the cement interface pipe (2). A rotating fixing plate (21) is rolled inside the valve (25). A rotating fan blade (22) is fixedly installed on the outer wall of the rotating fixing plate (21). A valve rotating column (27) is fixedly installed inside the cement interface pipe (2). A fixing plate helical tooth (211) is fixedly installed at the end of the rotating fixing plate (21). A fan blade power column (26) is rolled inside the valve (25). A fan blade bottom tooth (261) is fixedly installed at the bottom end of the fan blade power column (26). The fan blade power column (26) and the rotating fixing plate (21) are driven by meshing of the fan blade bottom tooth (261) and the fixing plate helical tooth (211). A power protection box (37) is fixedly installed at the top of the cement interface pipe (2). A first power column (31) is rolled inside the power protection box (37). A rebound column (32) is fixedly installed at the top of the cement interface pipe (2). A second power column (34) is slidably installed at the top of the rebound column (32). A third fixing plate (351) is fixedly installed at the top of the cement interface pipe (2). A third power column (35) is rolled inside the third fixing plate (351). A spring (36) is fixedly installed at the end of the third power column (35). The end of the spring (36) is fixedly installed on the inner wall of the power protection box (37).

2. The anchor bolt grouting equipment according to claim 1, characterized in that: A spring (33) is fixedly installed at the bottom end of the second power column (34), a second helical tooth (341) is fixedly installed at the top end of the second power column (34), a separation column (38) is rolledly installed at the top end of the power protection box (37), a separation plate (39) is fixedly installed at the lower end of the separation column (38), a separation helical tooth (382) is fixedly installed at the bottom end of the separation plate (39), and a separation plate protrusion (391) is fixedly installed at the lower end of the separation plate (39).

3. The anchor bolt grouting equipment according to claim 2, characterized in that: The top of the separation plate (39) is provided with a separation plate groove (392), and the top of the power protection box (37) is slidably connected with a separation pin (393).

4. The anchor bolt grouting equipment according to claim 3, characterized in that: The top of the separation pin (393) is fixedly installed with a separation lifting pin (394), and the separation lifting pin (394) has a separation lifting port (395) inside. The top outer wall of the valve rotating pin (27) is fixedly installed with a release disc (24), and the top of the release disc (24) is fixedly installed with a disc protrusion (241).

5. The anchor bolt grouting equipment according to claim 4, characterized in that: The outer wall of the anchor rod (5) is threaded with a screw (47), and a limiting plate (45) is slidably installed on the inner wall of the screw (47). A limiting plate fixing ring (46) is fixedly installed on the side wall of the limiting plate (45).

6. The anchor bolt grouting equipment according to claim 5, characterized in that: A circular oil distribution pipe (44) is fixedly installed on the side wall of the limiting plate fixing ring (46), and an oil pipe (43) is fixedly installed at the top of the circular oil distribution pipe (44). An oil tank (42) is fixedly installed at the top of the power protection box (37), and the oil pipe (43) is fixedly installed on the side wall of the oil tank (42).

7. The anchor bolt grouting equipment according to claim 6, characterized in that: The oil tank (42) is slidably provided with an oil valve switch (41) on its side wall, the separation column (38) is fixedly installed with a separation side wall protrusion (381) on its side wall, the top of the valve rotating column (27) is fixedly installed with a handle fixing plate (232), the outer wall of the handle fixing plate (232) is fixedly installed with four handle support columns (231), and the end of the handle support column (231) is fixedly installed with a rotating handle (23).

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