Bridge tunnel grouting device

Abstract

The utility model discloses a bridge tunnel grouting device, including the bottom plate, the upper end fixedly connected with the handrail of bottom plate, the lower end fixedly connected with the built -in self -locking function's universal wheel of bottom plate, the upper end of bottom plate still is provided with the feed pump, the storage slurry's storage jar and grouting assembly, and the feed pump's feed port is connected with the discharge port of storage jar through the pipeline, and the grouting assembly includes swing unit and sets up on swing unit and lifts unit, and is installed with the support plate on the lifting unit, and the upper end fixedly connected with the pedestal of support plate, and the recessed cavity of being passed through is established in the pedestal, and is installed with the grouting head on the pedestal, and the feed port of grouting head is connected with the hose, and one end of hose is connected with the discharge port of feed pump through the recessed cavity, and grouting head is used to the grouting pipe of tunnel top to transport slurry, and swing unit realizes the stepless swing adjustment of grouting head, in addition, the rotation mechanism on U -shaped seat further expands the adjustment freedom degree in space, can adapt the grouting demand of different curvature section of tunnel vault.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a bridge and tunnel grouting device. Background Technology

[0002] With the rapid development of urban infrastructure construction, bridges, tunnels, and rail transit have also developed rapidly. However, due to factors such as geological structure, soil environment, and operating vibration, phenomena such as collapse, loosening deformation, and settlement may occur. Therefore, the adoption of support and reinforcement technology is crucial. At present, the support and reinforcement technology for bridges and tunnels in China mostly adopts the installation of steel plate supports and a ring-shaped support component composed of high-strength materials on the outer surface of a metal square tube. After the component is installed and fixed on the inner wall of the solid to be reinforced, in order to further enhance the support strength of the component, high-strength and dense mortar must be filled into the metal square tube. Therefore, a grouting device is required.

[0003] In the prior art, as described in Chinese Patent No. (CN218748560U), in practical application scenarios, the discharge pipe is first installed into the reserved hole on the bridge tunnel, and then the fastening bolt is fixed in the threaded hole on the periphery of the reserved hole to fix the discharge pipe, which facilitates the grouting operation. However, the top structure of the bridge tunnel is complex and has varying curvature. When grouting is required on the grouting pipe at the top of the bridge tunnel, an additional lifting device is required, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a bridge tunnel grouting device to solve the problem mentioned in the background art that when grouting the complex and variable curvature of the top of the bridge tunnel, an additional lifting device is required, which is cumbersome to operate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bridge tunnel grouting device, comprising a base plate, a handrail fixedly connected to the upper end of the base plate, and a universal wheel with built-in self-locking function fixedly connected to the lower end of the base plate. The upper end of the base plate is also provided with a material pump, a storage tank for storing slurry, and a grouting assembly. The inlet port of the material pump is connected to the outlet port of the storage tank via a pipe. The grouting assembly includes a swing unit and a lifting unit mounted on the swing unit. A support plate is installed on the lifting unit, and a base is fixedly connected to the upper end of the support plate. A through cavity is opened in the base, and a grouting head is installed on the base. A flexible hose is connected to the inlet port of the grouting head, and one end of the flexible hose is connected to the outlet port of the material pump via the cavity. The grouting head is used to transport slurry to the grouting pipe at the top of the tunnel.

[0006] According to the preferred embodiment of this technical solution, the swing unit includes a base fixedly connected to the upper end of the base plate, a rotating shaft rotatably connected to the inner wall of the base, a flat gear fixedly connected to the outer wall of the rotating shaft, and an arc-shaped rack meshing with the flat gear. A U-shaped seat is fixedly connected to the upper end of the arc-shaped rack, and a rotating mechanism is provided on the U-shaped seat.

[0007] According to the preferred embodiment of this technical solution, the swing unit further includes a rotary motor I mounted on the outer wall of the base, a worm gear rotatably connected to the inner wall of the base, and a worm wheel fixedly connected to the outer wall of the rotating shaft. One end of the worm gear is connected to the output end of the rotary motor I, the rotary motor I is used to drive the worm gear to rotate, and the worm wheel is meshed with the worm gear.

[0008] In the preferred embodiment of this technical solution, an arc-shaped guide rod is fixedly connected to the inner wall of the base, and a guide block is slidably connected to the outer wall of the guide rod. One end of the guide block is fixedly connected to the surface of the U-shaped base.

[0009] According to the preferred embodiment of this technical solution, the rotating mechanism includes a second rotary motor mounted on the outer wall of the U-shaped seat, a transmission rod rotatably connected to the U-shaped seat, and a support block fixedly connected to the outer wall of the transmission rod. The output end of the second rotary motor is connected to one end of the transmission rod, and the second rotary motor is used to drive the transmission rod to rotate.

[0010] Based on the preferred embodiment of this technical solution, the lifting unit includes a column fixedly connected to the upper end of the support block, a cavity opened in the column, a lead screw rotatably connected to the bottom of the cavity, and a lifting rod threadedly connected to the lead screw. A limit plate is fixedly connected to the inner wall of the cavity, and the upper end of the lead screw passes through the limit plate.

[0011] Based on the preferred embodiment of this technical solution, a rotary motor three is installed on the outer wall of the column, and a driving bevel gear is fixedly connected to the output end of the rotary motor three. A driven bevel gear is fixedly connected to the outer wall of the lead screw, and the driving bevel gear and the driven bevel gear are meshed together.

[0012] In the preferred embodiment of this technical solution, the inner wall of the column is provided with a sliding groove, and the outer wall of the lifting rod is fixedly connected with a convex rail, which is slidably connected to the sliding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The swing unit adopts a combination of flat gear-arc rack and pinion transmission and worm gear reduction, and with the guide rod-guide block limiting structure, it realizes the stepless swing adjustment of the grouting head. In addition, the rotating mechanism on the U-shaped seat further expands the degree of adjustment freedom in space, which can adapt to the grouting needs of different curvature sections of the tunnel arch. 2. The lifting unit achieves vertical lifting through a screw mechanism driven by bevel gears. Combined with a slide rail-convex rail guide structure, it reduces maintenance costs compared to hydraulic lifting systems. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of one embodiment of a bridge tunnel grouting device according to the present invention; Figure 2 This is a schematic diagram of the structure of the swing unit of this utility model; Figure 3 This is a schematic diagram of the rotating mechanism of this utility model; Figure 4 This is a cross-sectional view of the lifting unit of this utility model; Figure 5 This is a schematic diagram of the structure of the base of this utility model; Figure 6 This is a schematic diagram of the structure of the convex rail and the slide groove of this utility model.

[0015] In the diagram: 1. Base plate; 2. Handrail; 3. Casters; 4. Material pump; 5. Storage tank; 6. Support plate; 7. Base; 8. Cavity; 9. Grouting head; 10. Hoses; 11. Base; 12. Shaft; 13. Flat gear; 14. Arc rack; 15. U-shaped seat; 16. Rotary motor one; 17. Worm gear; 18. Worm wheel; 19. Guide rod; 20. Guide block; 21. Rotary motor two; 22. Transmission rod; 23. Support block; 24. Column; 25. Cavity; 26. Lead screw; 27. Lifting rod; 28. Limiting plate; 29. ​​Rotary motor three; 30. Driving bevel gear; 31. Driven bevel gear; 32. Slide groove; 33. Convex rail. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6This utility model provides an embodiment: a bridge tunnel grouting device, including a base plate 1, a handrail 2 fixedly connected to the upper end of the base plate 1, and a universal wheel 3 with built-in self-locking function fixedly connected to the lower end of the base plate 1. The upper end of the base plate 1 is also provided with a material pump 4, a slurry storage tank 5, and a grouting assembly. The inlet port of the material pump 4 is connected to the outlet port of the storage tank 5 through a pipe. The grouting assembly includes a swing unit and a lifting unit mounted on the swing unit. A support plate 6 is installed on the lifting unit, and a base 7 is fixedly connected to the upper end of the support plate 6. A through cavity 8 is opened in the base 7, and a grouting head 9 is installed on the base 7. The inlet port of the grouting head 9 is connected to a flexible... Pipe 10, one end of hose 10 is connected to the discharge port of material pump 4 through cavity 8. Grouting head 9 is used to transport slurry to grouting pipe at the top of the tunnel. Base plate 1 serves as the basic support component of the entire grouting device, providing stable support for components such as handrail 2, casters 3, material pump 4, storage tank 5, and grouting components. Handrail 2, fixedly connected to the upper end of base plate 1, provides operating support points for users, making it easy for users to push the device to move. Casters 3, fixedly connected to the lower end of base plate 1, with built-in self-locking function, are connected to base plate 1 by bolts, enabling flexible steering of the device and facilitating movement within the bridge tunnel space. The self-locking mechanism built into casters 3 can lock after the device reaches the designated position. Wheels prevent the device from moving during grouting. A storage tank 5, located on the upper part of the base plate 1, provides a stable supply of grout to the conveying pump 4, ensuring continuous grouting. The conveying pump 4, as the power source for grout delivery, transports the grout from the storage tank 5 to the grouting head 9 through pipelines. The swing unit of the grouting assembly provides multi-angle swing support for the lifting unit and the grouting head 9, enabling multi-angle adjustment of the grouting head 9 to adapt to different positions of the grouting pipe at the top of the tunnel, improving grouting flexibility. The lifting unit, located on the swing unit, provides vertical lifting power for the support plate 6 and the grouting head 9, enabling the lifting and adjustment of the support plate 6 so that the grouting head 9 can be accurately aligned with the tunnel. The grouting pipe at the top meets the grouting requirements at different heights. The support plate 6 installed on the lifting unit serves as the installation platform for the base 7, providing stable support for the base 7. The through cavity 8 opened in the base 7 and fixedly connected to the upper end of the support plate 6 provides a channel for the hose 10, ensuring smooth slurry delivery. During operation, the device is pushed to the tunnel grouting position, the caster 3 is locked, the swing unit is adjusted according to the position of the grouting pipe to make the grouting head 9 roughly aligned, the lifting unit is started to make the grouting head 9 precisely aligned with the grouting pipe, the material pump 4 is started to draw slurry from the storage tank 5, and the slurry is delivered to the grouting head 9 through the pipe and hose 10. The grouting head 9 injects the slurry into the grouting pipe at the top of the tunnel, thus completing the grouting.

[0018] Please see Figures 2-3A further embodiment of this solution is as follows: The swing unit includes a base 11 fixedly connected to the upper end of the base plate 1, a rotating shaft 12 rotatably connected to the inner wall of the base 11, a spur gear 13 fixedly connected to the outer wall of the rotating shaft 12, and an arc-shaped rack 14 meshing with the spur gear 13. A U-shaped seat 15 is fixedly connected to the upper end of the arc-shaped rack 14, and a rotating mechanism is provided on the U-shaped seat 15. The base 11 fixedly connected to the upper end of the base plate 1 serves as the core support component of the swing unit, providing a stable mounting platform for components such as the rotating shaft 12, worm gear 17, and worm wheel 18. The rotating shaft 12 rotatably connected to the inner wall of the base 11 serves as the primary rotating shaft 12 of the swing unit. The spur gear 13 fixedly connected to its outer wall meshes with the arc-shaped rack 14. When the rotating shaft 12 rotates, the spur gear 13 drives the arc-shaped rack 14 to move along an arc trajectory, and the U-shaped seat 15 fixedly connected to the upper end of the arc-shaped rack 14 swings accordingly, thus realizing the swing function.

[0019] Please see Figures 2-3 A further embodiment of this solution is as follows: the swing unit also includes a rotary motor 16 mounted on the outer wall of the base 11, a worm 17 rotatably connected to the inner wall of the base 11, and a worm wheel 18 fixedly connected to the outer wall of the rotating shaft 12. One end of the worm 17 is connected to the output end of the rotary motor 16. The rotary motor 16 is used to drive the worm 17 to rotate. The worm wheel 18 is meshed with the worm 17. The rotary motor 16 mounted on the outer wall of the base 11 serves as a power source and is connected to the worm 17 rotatably connected to the inner wall of the base 11 via a coupling, driving the worm 17 to rotate. The worm 17 is meshed with the worm wheel 18 fixedly connected to the outer wall of the rotating shaft 12. Through the transmission of the worm wheel 18 and the worm 17, speed reduction and torque increase are achieved, so that the rotating shaft 12 rotates at a lower speed and a larger torque, thereby enhancing the driving capability of the swing unit.

[0020] Please see Figure 3 A further solution based on this embodiment is as follows: an arc-shaped guide rod 19 is fixedly connected to the inner wall of the base 11, and a guide block 20 is slidably connected to the outer wall of the guide rod 19. One end of the guide block 20 is fixedly connected to the surface of the U-shaped seat 15. The arc-shaped guide rod 19 fixedly connected to the inner wall of the base 11 provides a guide track for the movement of the U-shaped seat 15. One end of the guide block 20 slidably connected to the outer wall of the guide rod 19 is fixedly connected to the surface of the U-shaped seat 15. When the U-shaped seat 15 swings, the guide block 20 slides along the guide rod 19 to limit the movement direction of the U-shaped seat 15, prevent the U-shaped seat 15 from deviating during the swing, and improve the movement stability of the swing unit.

[0021] Please see Figure 3A further embodiment of this solution is as follows: The rotating mechanism includes a second rotating motor 21 mounted on the outer wall of the U-shaped base 15, a transmission rod 22 rotatably connected to the U-shaped base 15, and a support block 23 fixedly connected to the outer wall of the transmission rod 22. The output end of the second rotating motor 21 is connected to one end of the transmission rod 22. The second rotating motor 21 is used to drive the transmission rod 22 to rotate. The second rotating motor 21 mounted on the outer wall of the U-shaped base 15 serves as the power source of the rotating mechanism. Its output end is connected to one end of the transmission rod 22 rotatably connected to the U-shaped base 15 via a coupling, driving the transmission rod 22 to rotate. The support block 23 fixedly connected to the outer wall of the transmission rod 22 rotates with the transmission rod 22. The support block 23 serves as the mounting platform for the lifting unit. Its rotation function enables the lifting unit to be adjusted to adapt to the grouting pipes at different locations on the top of the tunnel, improving the flexibility of grouting.

[0022] Please see Figure 4 A further embodiment of this solution is as follows: The lifting unit includes a column 24 fixedly connected to the upper end of the support block 23, a cavity 25 opened in the column 24, a lead screw 26 rotatably connected to the bottom of the cavity 25, and a lifting rod 27 threadedly connected to the lead screw 26. A limit plate 28 is fixedly connected to the inner wall of the cavity 25. The upper end of the lead screw 26 passes through the limit plate 28. The column 24 fixedly connected to the upper end of the support block 23 serves as the basic support component of the lifting unit. It is stably connected to the support block 23 through welding, providing a stable installation space for components such as the lead screw 26 and the lifting rod 27. The lead screw 26 rotatably connected to the bottom of the cavity 25 serves as the power transmission component of the lifting unit. The lifting rod 27 threadedly connected to the lead screw 26 moves linearly along the axis of the lead screw 26 when the lead screw 26 rotates, realizing the vertical lifting function and meeting the grouting requirements at different heights. Please see Figure 4 A further solution based on this embodiment is as follows: A rotary motor 29 is installed on the outer wall of the column 24. The output end of the rotary motor 29 is fixedly connected to a drive bevel gear 30. The outer wall of the lead screw 26 is fixedly connected to a driven bevel gear 31. The drive bevel gear 30 and the driven bevel gear 31 are meshed together. The rotary motor 29 installed on the outer wall of the column 24 serves as the power source for the lifting unit. The drive bevel gear 30 fixedly connected to its output end meshes with the driven bevel gear 31 fixedly connected to the outer wall of the lead screw 26. When the rotary motor 29 drives the drive bevel gear 30 to rotate, the rotational power is transmitted to the driven bevel gear 31 and the lead screw 26 through bevel gear transmission, driving the lead screw 26 to rotate, realizing the power direction conversion, and making the lifting rod 27 vertically lift and lower. Please see Figure 6A further solution based on this embodiment is as follows: a groove 32 is provided on the inner wall of the column 24, and a convex rail 33 is fixedly connected to the outer wall of the lifting rod 27. The convex rail 33 is slidably connected to the groove 32. The groove 32 on the inner wall of the column 24 is slidably connected to the convex rail 33 fixedly connected to the outer wall of the lifting rod 27, which provides guidance for the vertical movement of the lifting rod 27, prevents the lifting rod 27 from deviating or shaking during the movement, and improves the movement stability of the lifting unit.

[0023] Working principle: When grouting is required in a bridge or tunnel, the entire grouting device is first moved to a suitable position. The user holds the handle 2, which is fixedly connected to the upper end of the base plate 1, and pushes the device. The lower end of the base plate 1 is connected by bolts to the built-in self-locking casters 3, which can flexibly turn the device and facilitate movement within the bridge or tunnel space. When the device reaches the designated tunnel grouting position, the self-locking mechanism built into the casters 3 is used to lock the wheels to prevent the device from moving during the subsequent grouting process. Next, the swing unit is adjusted, and the rotary motor 16 mounted on the outer wall of the base 11 is started. As a power source, it drives the worm 17, which is rotatably connected to the inner wall of the base 11, to rotate via a coupling. The worm wheel 18, which is meshed with the worm 17 and fixed to the outer wall of the rotating shaft 12, rotates accordingly. Through the transmission of the worm wheel 18 and the worm 17, speed reduction and torque increase are achieved, so that the rotating shaft 12, which is rotatably connected to the inner wall of the base 11, rotates at a lower speed and a larger torque. The flat gear 13, which is fixed to the outer wall of the rotating shaft 12, drives the arc-shaped rack 14, which is meshed with it, to rotate along the arc-shaped track. As the U-shaped seat 15, which is fixedly connected to the upper end of the arc-shaped rack 14, swings, the arc-shaped guide rod 19, which is fixedly connected to the inner wall of the base 11, provides a guide track for the movement of the U-shaped seat 15. One end of the guide block 20, which is slidably connected to the outer wall of the guide rod 19, is fixedly connected to the surface of the U-shaped seat 15. When the U-shaped seat 15 swings, the guide block 20 slides along the guide rod 19, which restricts the movement direction of the U-shaped seat 15, prevents it from deviating, and improves the movement stability of the swing unit. Through this series of operations, the grouting head 9 is roughly aligned with the grouting pipe at the top of the tunnel. Then, the rotating mechanism is adjusted, and the rotating motor 21 installed on the outer wall of the U-shaped seat 15 is started. As a power source, it drives the transmission rod 22 connected to the U-shaped seat 15 to rotate through the coupling. The support block 23 fixedly connected to the outer wall of the transmission rod 22 rotates with the transmission rod 22. The support block 23 serves as the installation platform for the lifting unit. Its rotation function can further adapt to the grouting pipes at different locations on the top of the tunnel, improving the flexibility of grouting. Then, the lifting unit is operated. The rotary motor 29 installed on the outer wall of the column 24 starts. As a power source, the active bevel gear 30 fixedly connected to its output end rotates. The driven bevel gear 31, which is meshed with the active bevel gear 30 and fixedly connected to the outer wall of the screw 26, rotates accordingly, transmitting the rotational power to the screw 26. This drives the screw 26, which is rotatably connected to the bottom of the cavity 25 inside the column 24, to rotate. The lifting rod 27, which is threaded onto the screw 26, moves linearly along the axial direction of the screw 26 when the screw 26 rotates. The sliding groove 32 opened on the inner wall of the column 24 is slidably connected to the convex rail 33 fixedly connected to the outer wall of the lifting rod 27, providing guidance for the vertical movement of the lifting rod 27 and preventing it from deviating or shaking. This enables the vertical lifting of the lifting rod 27, allowing the grouting head 9 to be precisely aligned with the grouting pipe at the top of the tunnel, meeting the grouting requirements at different heights. Finally, grouting is carried out. The feed pump 4 is started, serving as the power source for slurry transport. The slurry from the storage tank 5 located on the upper part of the base 1 is transported through a pipeline to the grouting head 9. One end of the hose 10 connected to the inlet of the grouting head 9 is connected to the outlet port of the feed pump 4 through a through-cavity 8 in the base 7, ensuring smooth slurry transport. The grouting head 9 injects the slurry into the grouting pipe at the top of the tunnel, thus completing the grouting process.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge tunnel grouting device, characterized in that: The base plate (1) is fixedly connected to the upper end of the base plate (1) and to the lower end of the base plate (1) is fixedly connected to the universal wheel (3) with built-in self-locking function. The upper end of the base plate (1) is also equipped with a material pump (4), a storage tank (5) for storing mud and a grouting assembly. The inlet port of the material pump (4) is connected to the outlet port of the storage tank (5) through a pipe. The grouting assembly includes a swing unit and a lifting unit set on the swing unit. A support plate (6) is installed on the lifting unit. A base (7) is fixedly connected to the upper end of the support plate (6). A through cavity (8) is opened in the base (7). A grouting head (9) is installed on the base (7). A hose (10) is connected to the inlet of the grouting head (9). One end of the hose (10) is connected to the outlet port of the material pump (4) through the cavity (8). The grouting head (9) is used to transport mud to the grouting pipe at the top of the tunnel.

2. The bridge tunnel grouting device according to claim 1, characterized in that: The swing unit includes a base (11) fixedly connected to the upper end of the base plate (1), a rotating shaft (12) rotatably connected to the inner wall of the base (11), a flat gear (13) fixedly connected to the outer wall of the rotating shaft (12), and an arc-shaped rack (14) meshing with the flat gear (13). A U-shaped seat (15) is fixedly connected to the upper end of the arc-shaped rack (14), and a rotating mechanism is provided on the U-shaped seat (15).

3. A bridge tunnel grouting device according to claim 2, characterized in that: The swing unit also includes a rotary motor (16) mounted on the outer wall of the base (11), a worm (17) rotatably connected to the inner wall of the base (11), and a worm wheel (18) fixedly connected to the outer wall of the rotating shaft (12). One end of the worm (17) is connected to the output end of the rotary motor (16). The rotary motor (16) is used to drive the worm (17) to rotate. The worm wheel (18) is meshed with the worm (17).

4. A bridge tunnel grouting device according to claim 2, characterized in that: An arc-shaped guide rod (19) is fixedly connected to the inner wall of the base (11), and a guide block (20) is slidably connected to the outer wall of the guide rod (19). One end of the guide block (20) is fixedly connected to the surface of the U-shaped seat (15).

5. A bridge tunnel grouting device according to claim 2, characterized in that: The rotating mechanism includes a second rotary motor (21) mounted on the outer wall of the U-shaped seat (15), a transmission rod (22) rotatably connected to the U-shaped seat (15), and a support block (23) fixedly connected to the outer wall of the transmission rod (22). The output end of the second rotary motor (21) is connected to one end of the transmission rod (22), and the second rotary motor (21) is used to drive the transmission rod (22) to rotate.

6. A bridge tunnel grouting device according to claim 5, characterized in that: The lifting unit includes a column (24) fixedly connected to the upper end of the support block (23), a cavity (25) opened in the column (24), a lead screw (26) rotatably connected to the bottom of the cavity (25), and a lifting rod (27) threadedly connected to the lead screw (26). A limit plate (28) is fixedly connected to the inner wall of the cavity (25), and the upper end of the lead screw (26) passes through the limit plate (28).

7. A bridge tunnel grouting device according to claim 6, characterized in that: A rotary motor (29) is installed on the outer wall of the column (24). The output end of the rotary motor (29) is fixedly connected to the driving bevel gear (30). The outer wall of the lead screw (26) is fixedly connected to the driven bevel gear (31). The driving bevel gear (30) and the driven bevel gear (31) are meshed together.

8. A bridge tunnel grouting device according to claim 6, characterized in that: The inner wall of the column (24) is provided with a sliding groove (32), and the outer wall of the lifting rod (27) is fixedly connected with a convex rail (33), which is slidably connected to the sliding groove (32).

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