Grouting device for tunnel construction

Abstract

The invention relates to the technical field of tunnel construction equipment, and discloses a grouting device for tunnel construction. The grouting device for tunnel construction comprises an arc-shaped support provided with an arc-shaped guide rail; the arc-shaped support is sleeved with the movable seat, the movable seat slides along the arc-shaped guide rail, and a guide sliding groove perpendicular to the arc-shaped support is formed in the side face of the movable seat; the supporting assembly comprises a support, a driving part and a rotating rod extending in the direction of the guiding sliding groove, the support is arranged on the guiding sliding groove in a sliding mode, and the rotating rod is rotationally arranged on the support; the guide pipe is arranged on the rotating rod; and the grouting pipe is sleeved with the guide pipe. According to the grouting device, the movable seat moves along the arc-shaped support and drives the guide pipe on the rotating rod to rotate, so that the height and angle of the grouting pipe are adjusted, the grouting pipe can be inserted into the advanced small guide pipe for grouting operation, and manual operation is not needed.

Description

Technical Field

[0001] This invention relates to the technical field of tunnel construction equipment, and in particular to a grouting device for tunnel construction. Background Technology

[0002] During tunnel construction, with the continuous expansion of underground space development and increasingly complex geological conditions, geological problems such as weak surrounding rock, fault fracture zones, and water-rich strata are gradually increasing. To prevent the collapse of the excavation face, reduce groundwater infiltration, and maintain the stability of the surrounding rock, a pre-excavation grouting reinforcement method using small guide pipes is typically employed in front of the tunnel excavation face. This method involves pre-laying steel pipes or small guide pipes outside the excavation outline and injecting cement grout or chemical grout inside them to improve the overall strength and density of the surrounding rock ahead. This provides pre-support, water stoppage, and rock stabilization, ensuring the safety and continuity of the tunnel excavation process.

[0003] Existing grouting construction mainly includes three stages: grout mixing, conveying, and injection. Taking Chinese Patent Publication No. CN117266887B as an example, this patent discloses a grouting device for railway tunnel construction in complex geological conditions, including a base, hopper, two mixing tanks, a servo motor, and a material spreading mechanism. This device improves grout mixing efficiency and ensures continuous material supply by having two mixing tanks work alternately, and utilizes a dust removal mechanism to prevent dust diffusion, thus improving the construction environment. This type of device can automate grout mixing and feeding, improving the efficiency of grout material preparation.

[0004] However, the aforementioned existing technologies mainly focus on the grout preparation and supply process, with insufficient consideration for the precise docking of the grouting pipe and the pre-drilled guide pipe, as well as the automation of the grouting operation. In actual tunnel construction sites, grouting operations typically require workers to hold the grouting pipe and insert it into the pre-drilled guide pipe positioned at the tunnel arch or high up. Some pre-drilled guide pipes are located at higher elevations or on complex geological surfaces, requiring operators to climb or use temporary support frames to complete the grouting operation. Such operations are not only labor-intensive and have low positioning accuracy, but also pose significant safety risks, especially in narrow, slippery tunnel environments, where slips and falls are likely to occur, affecting construction safety and efficiency. Summary of the Invention

[0005] The technical problem to be solved by this invention is to address the low efficiency and high risk of accidents associated with manual grouting pipe connection operations.

[0006] To solve the above-mentioned technical problems, the present invention provides a grouting device for tunnel construction, comprising: an arc-shaped support, the arc-shaped support being provided with an arc-shaped guide rail; a movable seat, the movable seat being sleeved on the arc-shaped support and sliding along the arc-shaped guide rail, the movable seat having a guide groove perpendicular to the arc-shaped support on its side; a support assembly, the support assembly including a bracket, a driving member, and a rotating rod extending along the direction of the guide groove, the bracket being slidably disposed on the guide groove, the first end of the rotating rod being rotatably disposed on the bracket about the rotating rod as an axis, the driving member being used to drive the bracket to slide along the guide groove; a guide tube, the guide tube being disposed on the second end of the rotating rod; a grouting pipe, the guide tube being sleeved on the grouting pipe, the output end of the grouting pipe being located outside the guide tube; a first electric push rod, the first electric push rod being disposed on the guide tube, the output end of the first electric push rod being connected to the grouting pipe, the first electric push rod being used to push the grouting pipe to move along the guide tube; and a first motor, the first motor being used to drive the movable seat to move along the arc-shaped support.

[0007] Furthermore, the support assembly also includes a second electric push rod and a limiting frame disposed on the output end of the second electric push rod. The second electric push rod is disposed on the bracket, and the guide tube is rotatably disposed on the second end of the rotating rod about a first direction as an axis. The guide tube passes through the limiting frame, and the inner frame width of the limiting frame is greater than the diameter of the guide tube. The second electric push rod is used to drive the limiting frame to move in a vertical direction. The first direction, the guide groove, and the guide tube are perpendicular to each other.

[0008] Furthermore, the guide tube has a cylindrical protrusion on its side, and the second end of the rotating rod has a fixing hole extending along the first direction, with the cylindrical protrusion rotatably mounted on the fixing hole.

[0009] Furthermore, the movable seat includes a frame, a gear, and a pulley. The arc-shaped bracket is provided with a rack that meshes with the gear. The frame is sleeved on the arc-shaped bracket. The gear and the pulley are both rotatably mounted on the inner frame of the frame. The pulley slides along the arc-shaped guide rail. The first motor is used to drive the gear to rotate.

[0010] Furthermore, the arc-shaped guide rail and the rack are located on the outer and inner ring surfaces of the arc-shaped bracket, respectively. The arc-shaped guide rail is an arc-shaped groove, and the width of the pulley is the same as the width of the arc-shaped groove.

[0011] Furthermore, the arc-shaped bracket is provided with multiple through holes, which are arranged at equal intervals along the arc-shaped groove. The through holes are located at the bottom of the arc-shaped groove, and the width of the through holes is smaller than the width of the arc-shaped groove.

[0012] Furthermore, the support assembly also includes a limiting ring, which is disposed on the bracket and located in front of the guide pipe opening, with the output end of the grouting pipe passing through the limiting ring.

[0013] Furthermore, the support assembly also includes a material bucket, which is disposed on the bracket and located below the output end of the grouting pipe.

[0014] Furthermore, the driving component is a third electric push rod, the two ends of which are connected to the movable seat and the bracket respectively, and the third electric push rod is used to push the bracket to move in the vertical direction.

[0015] Furthermore, it also includes a base, the bottom end of which is connected to the top surface of the base, and the bottom of the base is provided with casters.

[0016] Compared with existing technologies, the grouting device for tunnel construction according to this invention has the following advantages: By activating a first motor to move a movable seat along an arc-shaped support, the arc-shaped support having the same curvature as the tunnel inner wall, thus facilitating the adjustment of the movable seat position to align the grouting pipe with the pre-advanced small guide pipe at the tunnel entrance. A driving component drives the support on the movable seat to slide in a direction perpendicular to the arc-shaped support, thereby performing a second height adjustment of the grouting pipe. Then, the guide pipe on the rotating rod is driven to rotate, thereby adjusting the grouting angle of the grouting pipe within the guide pipe to match the grouting angle of the pre-advanced small guide pipe. The guide tube opening is aligned perfectly with the pre-conduit tube opening. Then, the first electric push rod controls the movement of the grouting pipe along the guide tube, allowing the grouting pipe to be inserted into the pre-conduit tube for grouting. After grouting is completed, the first electric push rod controls the grouting pipe to be pulled out. Then, the position of the grouting pipe is moved to another pre-conduit tube for grouting. This process can be repeated to achieve continuous grouting operations, improving the degree of automation and efficiency of construction. Moreover, the grouting process does not require workers to climb to heights, reducing the exposure time of construction personnel in high-risk areas and lowering the probability of accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the grouting device for tunnel construction provided by the present invention connecting to the advanced small guide pipe at the tunnel entrance; Figure 2 This is a perspective view of the grouting device for tunnel construction provided by the present invention; Figure 3 This is a first schematic diagram of the guide pipe, grouting pipe, movable seat and support assembly of the grouting device for tunnel construction provided by the present invention; Figure 4 This is a second schematic diagram of the guide pipe, grouting pipe, movable seat and support assembly of the grouting device for tunnel construction provided by the present invention; Figure 5 This is a schematic diagram of the first motor and gear of the grouting device for tunnel construction provided by the present invention; Figure 6 This is a schematic diagram of the guide pipe, grouting pipe, and support components of the grouting device for tunnel construction provided by the present invention; Figure 7 This is a schematic diagram of the support component of the grouting device for tunnel construction provided by the present invention.

[0018] The correspondence between the reference numerals and the component names is as follows: 1. Arc-shaped bracket; 11. Arc-shaped guide rail; 12. Rack; 101. Through hole; 2. Movable seat; 21. Frame; 22. Gear; 23. Pulley; 201. Guide groove; 3. Support assembly; 31. Bracket; 32. Drive component; 33. Rotating rod; 34. Second electric push rod; 35. Limiting frame; 36. Limiting ring; 37. Material bucket; 301. Fixing hole; 4. Guide tube; 41. Cylindrical protrusion; 5. Grouting pipe; 6. First electric push rod; 7. First motor; 8. Second motor; 9. Base; 91. Caster wheel. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope of the invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0020] like Figures 1 to 7As shown in the figure, an embodiment of the present invention discloses a grouting device for tunnel construction, comprising: an arc-shaped support 1, the arc-shaped support 1 having an arc-shaped guide rail 11; a movable seat 2, the movable seat 2 being sleeved on the arc-shaped support 1 and sliding along the arc-shaped guide rail 11, the movable seat 2 having a guide groove 201 perpendicular to the arc-shaped support 1 on its side; and a support assembly 3, the support assembly 3 including a bracket 31, a driving member 32, and a rotating rod 33 extending along the direction of the guide groove 201, the bracket 31 being slidably disposed on the guide groove 201, and the first end of the rotating rod 33 being rotatably disposed on the bracket 31 about the rotating rod 33 as an axis, the driving member 32 being rotatably disposed on the bracket 31. The moving part 32 is used to drive the bracket 31 to slide along the guide groove 201; the guide tube 4 is set on the second end of the rotating rod 33; the grouting pipe 5 is sleeved on the guide tube 4, and the output end of the grouting pipe 5 is located outside the guide tube 4; the first electric push rod 6 is set on the guide tube 4, and the output end of the first electric push rod 6 is connected to the grouting pipe 5, and the first electric push rod 6 is used to push the grouting pipe 5 to move along the guide tube 4; the first motor 7 is used to drive the movable seat 2 to move along the arc-shaped bracket 1; the second motor 8 is used to drive the rotating rod 33 to rotate.

[0021] The grouting device for tunnel construction disclosed in this application involves activating a first motor 7 to move a movable seat 2 along an arc-shaped support 1, adjusting the position of the movable seat 2 so that the grouting pipe 5 is aligned with the advanced small guide pipe. A driving component 32 drives the support 31 on the movable seat 2 to slide in a direction perpendicular to the arc-shaped support 1, thereby performing a second height adjustment of the grouting pipe 5. Then, a second motor 8 drives the guide pipe 4 on the rotating rod 33 to rotate, thereby adjusting the grouting angle of the grouting pipe 5 within the guide pipe 4 to match the grouting angle of the advanced small guide pipe, ensuring that the opening of the guide pipe 4 is completely aligned with the advanced small guide pipe. The grouting pipe 5 is moved along the guide pipe 4 by the first electric push rod 6 to the opening of the pre-conduit pipe, so that the grouting pipe 5 can be inserted into the interior of the pre-conduit pipe for grouting. After grouting is completed, the grouting pipe 5 is pulled out by the first electric push rod 6, and then the position of the grouting pipe 5 is moved to another pre-conduit pipe for grouting. This process can be repeated to achieve continuous grouting operation, which improves the degree of automation and efficiency of construction. Moreover, the grouting process does not require workers to climb to high places, which reduces the exposure time of construction workers in high-risk areas and reduces the probability of accidents.

[0022] The movable seat 2 can move along the arched trajectory through the cooperation of the arc-shaped bracket 1 and the arc-shaped guide rail 11, achieving precise adjustment of the grouting position. The support component 3 can slide in a direction perpendicular to the arc-shaped bracket 1 under the action of the drive component 32, and the rotating rod 33 driven by the second motor 8 drives the guide tube 4 to rotate, thereby flexibly adjusting the horizontal angle and height of the grouting pipe 5. The first electric push rod 6 is used to push the grouting pipe 5 to move along the guide tube 4, realizing the automatic insertion and extraction of the grouting pipe 5. The entire grouting process does not require manual climbing. The device of this application can automatically adjust the grouting position, angle and depth in multiple dimensions, ensuring high-precision docking between the grouting pipe 5 and the advanced small guide pipe, significantly reducing construction risks, improving grouting efficiency and the consistency of reinforcement effect. At the same time, the structure is modular and easy to operate, and it is suitable for continuous automated grouting construction under complex tunnel geological conditions.

[0023] Specifically, the arc-shaped support 1 has an arched structure, and its outer side is provided with an arc-shaped guide rail 11 that matches its shape. The movable seat 2 is slidably installed on the arc-shaped guide rail 11. The movable seat 2 and the arc-shaped guide rail 11 can be connected with low friction through pulleys 23 or roller assemblies. Thus, under the drive of the first motor 7, the movable seat 2 is moved along the arc trajectory of the arc-shaped guide rail 11 to adjust the lateral position of the grouting device used for tunnel construction, so that the output end of the grouting pipe 5 can be roughly aligned with the advanced small guide pipes arranged at different angles. The injection end of the grouting pipe 5 is connected to the material mixing tank, and the mixing tank is equipped with a pressure pump to inject grout into the grouting pipe 5.

[0024] The support assembly 3 is mounted on the movable seat 2 and includes a bracket 31, a drive component 32, and a rotating rod 33 extending vertically. The bracket 31 is slidably connected to the movable seat 2 via a guide groove. The drive component 32, such as an electric push rod or an electric lifting mechanism, is installed between the movable seat 2 and the bracket 31 to drive the bracket 31 to rise and fall vertically, thereby adjusting the height of the grouting mechanism. The first end of the rotating rod 33 is rotatably connected to the bracket 31 via a rotating shaft, and the second end is fixedly mounted with a guide tube 4. A second motor 8 is mounted on the bracket 31, and its output shaft is connected to the rotating rod 33 to drive the rotating rod 33 and the guide tube 4 to rotate synchronously, thereby adjusting the grouting angle and ensuring that the outlet direction of the grouting pipe 5 is coaxially aligned with the advanced small guide tube.

[0025] The grouting pipe 5 is detachably installed inside the guide pipe 4, which limits the direction of movement of the grouting pipe 5. The output end of the grouting pipe 5 extends out of the guide pipe 4 and is used to insert into the pre-guide tube for grouting operations. The first electric push rod 6 is installed on the guide pipe 4, and its output end is fixedly connected to the tail end of the grouting pipe 5. By controlling the extension and retraction of the first electric push rod 6, the grouting pipe 5 can move back and forth along the direction of the guide pipe 4, realizing the automatic insertion and withdrawal operation of the grouting pipe 5.

[0026] In operation, the operator first controls the first motor 7 to drive the movable seat 2 to move along the arc-shaped guide rail 11, aligning the grouting mechanism roughly with the target pre-guide pipe. Then, the operator controls the support 31 to rise and fall via the drive component 32, finely adjusting the grouting height. Next, the operator controls the second motor 8 to drive the rotating rod 33 to rotate, finely adjusting the grouting angle to ensure the outlet of the grouting pipe 5 is perfectly aligned with the pre-guide pipe. Finally, the operator activates the first electric push rod 6, causing the grouting pipe 5 to extend forward along the guide pipe 4 and insert into the pre-guide pipe. Grout is then pumped into the grouting pipe 5 via an external grouting pump, completing the grouting operation. After grouting is completed, the operator controls the first electric push rod 6 to extend and retract in the opposite direction, automatically withdrawing the grouting pipe 5. The first motor 7 then drives the movable seat 2 to move to the next pre-guide pipe position to continue the grouting operation. Through the above embodiments, the grouting device for tunnel construction of the present invention can realize automatic adjustment of grouting position, angle and depth. The entire grouting process does not require manual climbing operation, which significantly reduces construction risks and improves the consistency of grouting efficiency and reinforcement quality. At the same time, the device has a simple structure and is easy to install, and is suitable for tunnel pre-support construction under various geological conditions.

[0027] Specifically, the height and curvature of the arc-shaped support 1 are the same as those of the construction tunnel, and the bottom of the base 9 is equipped with casters 91. The curvature of the arc-shaped support 1 is the same as or similar to that of the arc-shaped guide rail 11, which is set on the outer ring surface of the arc-shaped support 1. The output end of the grouting pipe 5 extends a short distance, such as 3-8 cm, from the guide pipe 4 to facilitate connection with the output end of the grouting pipe 5.

[0028] Specifically, the driving component 32 can be an electric pulley or a third electric push rod. The movable seat 2 is provided with a vertically extending groove, and the bracket 31 is provided with a slider that is engaged in the groove and can slide along the groove. The electric pulley is mounted on the bracket 31, and the wheel surface of the electric pulley abuts against the groove. The electric pulley is used to drive the bracket 31 to move vertically. The two ends of the third electric push rod are connected to the movable seat 2 and the bracket 31 respectively. The third electric push rod is used to push the bracket 31 to move vertically.

[0029] like Figure 3 and Figure 4 As shown, in an optional embodiment of the present invention, the support assembly 3 further includes a second electric push rod 34 and a limiting frame 35 disposed on the output end of the second electric push rod 34. The second electric push rod 34 is disposed on the bracket 31. The guide tube 4 is rotatably disposed on the second end of the rotating rod 33 about the first direction as the axis. The guide tube 4 passes through the limiting frame 35. The inner frame width of the limiting frame 35 is greater than the diameter of the guide tube 4. The second electric push rod 34 is used to drive the limiting frame 35 to move along the extension direction of the guide groove 201. The first direction, the guide groove 201 and the guide tube 4 are perpendicular to each other.

[0030] The second electric push rod 34 drives the limiting frame 35 to move vertically, causing one end of the guide tube 4 to shift up and down. The other end of the guide tube 4, located on the rotating rod 33, rotates vertically, creating a controllable oscillation in the vertical direction. This allows for precise adjustment of the vertical angle of the grouting pipe 5's output end, achieving accurate docking of pre-conducting guides at different heights. Because the inner frame width of the limiting frame 35 is greater than the diameter of the guide tube 4, the guide tube 4 can freely rotate horizontally within the limiting frame 35. Combined with the horizontal rotation drive of the rotating rod 33, the grouting pipe 5 simultaneously possesses angle adjustment capabilities in both horizontal and vertical directions, creating a multi-degree-of-freedom grouting positioning effect. This structure not only improves the accuracy and flexibility of grouting angle adjustment, avoiding uneven grouting or leakage caused by angle deviation, but also reduces manual fine-tuning operations, significantly improving the automation level and construction safety of tunnel grouting construction.

[0031] By allowing the drive unit 32 to adjust the height of the grouting pipe 5 for the second time, the rotating rod 33 and the second electric push rod 34 can respectively adjust the horizontal and vertical angles of the guide pipe 4. When the set advanced small guide pipe is in an inclined state, the angle of the grouting pipe 5 can be adjusted to make it accurately aligned with the advanced small guide pipe, so as to adapt to the use of guide pipes at different angles for grouting.

[0032] like Figure 3 , Figure 6 and Figure 7 As shown, in an optional embodiment of the present invention, the guide tube 4 has a cylindrical protrusion 41 on its side, and the second end of the rotating rod 33 has a fixing hole 301 extending in the horizontal direction. The cylindrical protrusion 41 is rotatably disposed on the fixing hole 301.

[0033] By setting a cylindrical protrusion 41 on the side of the guide tube 4 and rotatably mounting it in the horizontal fixing hole 301 at the second end of the rotating rod 33, a reliable rotatable connection structure between the guide tube 4 and the rotating rod 33 is achieved. This simplifies the connection method between the guide tube 4 and the rotating rod 33, allowing the guide tube 4 to rotate smoothly in the horizontal direction, reducing rotational friction resistance, and improving the sensitivity and stability of grouting angle adjustment. Simultaneously, the cylindrical protrusion 41 serves as a limit and support, ensuring the coaxiality and structural strength of the guide tube 4 during rotation, preventing swaying or deviation, thereby ensuring accurate and consistent grouting direction of the grouting pipe 5 under different angle operations, and improving the reliability and durability of the grouting operation.

[0034] like Figure 2 , Figure 3 and Figure 5As shown, in an optional embodiment of the present invention, the movable seat 2 includes a frame 21, a gear 22 and a pulley 23. The arc-shaped bracket 1 is provided with a rack 12 that meshes with the gear 22. The frame 21 is sleeved on the arc-shaped bracket 1. The gear 22 and the pulley 23 are both rotatably mounted on the inner frame of the frame 21. The pulley 23 slides along the arc-shaped guide rail 11. The first motor 7 is used to drive the gear 22 to rotate.

[0035] By incorporating a frame 21, gear 22, and pulley 23 within the movable seat 2, and by installing a rack 12 on the arc-shaped support 1 that meshes with the gear 22, the movable seat 2 can move smoothly along the arc-shaped guide rail 11 under the combined action of the gear 22's meshing drive and the pulley 23's guiding support. This ensures the stability and accuracy of the movable seat 2's movement while effectively reducing frictional resistance during the arc-shaped track's movement and improving the sensitivity of positioning adjustment. The first motor 7 drives the gear 22 to rotate, enabling the movable seat 2 to move automatically along the arc-shaped support 1. This allows the grouting mechanism to quickly and accurately switch between different grouting positions without manual movement of the device, significantly improving the automation level and construction efficiency of the grouting operation, while simultaneously ensuring the stability and reliability of the device's operation.

[0036] Specifically, a horizontally extending pivot is provided between the two side walls of the frame 21, and pulleys 23 are rotatably mounted on the pivot. In another embodiment, a support seat is provided on the inner wall of the frame 21, and pulleys 23 are disposed on both sides of the support seat.

[0037] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, the arc-shaped guide rail 11 and the rack 12 are located on the outer ring surface and the inner ring surface of the arc-shaped bracket 1, respectively. The arc-shaped guide rail 11 is an arc-shaped groove, and the width of the pulley 23 is the same as the width of the arc-shaped groove.

[0038] By setting the arc-shaped guide rail 11 as an arc-shaped groove on the outer ring surface of the arc-shaped support 1, and setting the rack 12 on the inner ring surface of the arc-shaped support 1, while ensuring that the width of the pulley 23 is the same as the width of the arc-shaped groove, precise guidance and stable support of the movable seat 2 along the arc-shaped trajectory are achieved. This design ensures that the pulley 23 slides smoothly within the groove, avoiding wobbling or deviation, and improving the stability and positioning accuracy of the movable seat 2 on the arc-shaped support 1. At the same time, the cooperation between the rack 12 and the gear 22 ensures that the movable seat 2 moves automatically and evenly along the arc-shaped path under drive, thereby improving the automation level and operational reliability of the grouting mechanism, significantly improving construction efficiency, and ensuring the safety and accuracy of grouting operations in complex tunnel environments.

[0039] Specifically, the outer and inner ring surfaces of the arc-shaped bracket 1 are respectively provided with arc-shaped guide rails 11 and racks 12. The pulley 23 slides on the arc-shaped guide rails 11 on the outer ring surface of the arc-shaped bracket 1, which can stably bear the force.

[0040] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, the arc-shaped bracket 1 is provided with a plurality of through holes 101, the plurality of through holes 101 are arranged at equal intervals along the arc-shaped groove, the through holes 101 are located at the bottom of the arc-shaped groove, and the width of the through holes 101 is smaller than the width of the arc-shaped groove.

[0041] By setting multiple equidistant through holes 101 at the bottom of the arc-shaped groove of the arc-shaped support 1, and the width of the through holes 101 being smaller than the width of the groove, the structural weight is reduced to a certain extent, facilitating installation and maintenance. At the same time, the uniform distribution of the through holes 101 ensures the stability and accuracy of the movement of the movable seat 2 along the arc-shaped trajectory, improves the automatic alignment capability of the grouting mechanism with the advanced small guide pipe, and enhances the safety, reliability, and construction efficiency of the grouting operation.

[0042] like Figure 3 and Figure 4 As shown, in an optional embodiment of the present invention, the support component 3 further includes a limiting ring 36, which is disposed on the bracket 31 and located in front of the guide pipe 4 opening. The output end of the grouting pipe 5 passes through the limiting ring 36.

[0043] By setting a limiting ring 36 on the support component 3 and placing it in front of the guide pipe 4, the output end of the grouting pipe 5 passes through the limiting ring 36, thereby constraining and guiding the direction and insertion depth of the grouting pipe 5 when it is inserted into the pre-guide pipe. This structure can prevent the grouting pipe 5 from deviating or tilting during operation, ensuring coaxial connection between the grouting pipe 5 and the pre-guide pipe, and improving grouting accuracy and stability. At the same time, the setting of the limiting ring 36 simplifies the connection limiting operation steps, reduces the need for manual fine-tuning, improves construction safety and work efficiency, and effectively reduces the risk of grout leakage or pipe blockage caused by pipe opening deviation during grouting.

[0044] like Figure 4 and Figure 7 As shown, in an optional embodiment of the present invention, the support component 3 further includes a material bucket 37, which is disposed on the bracket 31 and located below the output end of the grouting pipe 5.

[0045] By installing a material bucket 37 on the support component 3 and placing it below the output end of the grouting pipe 5, the system effectively collects and temporarily stores any grout that may drip or overflow during the grouting process. This not only maintains the cleanliness of the construction site and prevents grout from contaminating the tunnel's inner surface or equipment, but also reduces manual cleaning workload and improves construction safety and operational efficiency. Furthermore, the material bucket 37 facilitates the subsequent recycling and reuse of grouting materials, reducing construction costs and enhancing the environmental friendliness and sustainability of tunnel grouting construction.

[0046] like Figure 3 and Figure 4 As shown, in an optional embodiment of the present invention, the driving component 32 is a third electric push rod, the two ends of which are connected to the movable seat 2 and the bracket 31 respectively. The third electric push rod is used to push the bracket 31 to move in the vertical direction.

[0047] By setting the drive component 32 as a third electric actuator and connecting its two ends to the movable seat 2 and the bracket 31 respectively, the automatic vertical lifting and lowering adjustment of the bracket 31 is achieved. This design allows the height of the grouting pipe 5 to be quickly and accurately adjusted according to the different layouts of the pre-installed small guide pipes, eliminating the need for manual handling or operation, thus significantly reducing the labor intensity of construction workers and the risks of working at heights. At the same time, the application of the third electric actuator improves the stability and accuracy of the grouting height adjustment, enabling the grouting pipe 5 to accurately connect with the pre-installed small guide pipes, improving the efficiency of grouting operations and the consistency of reinforcement effects.

[0048] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, a base 9 is also included, the bottom end of the arc-shaped bracket 1 is connected to the top surface of the base 9, and the bottom of the base 9 is provided with casters 91.

[0049] By installing a base 9 on the grouting device used in tunnel construction and fixing the bottom end of the arc-shaped bracket 1 to the top surface of the base 9, and simultaneously installing casters 91 at the bottom of the base 9, the entire machine achieves mobility and stable support. This allows the grouting device to be easily moved along the ground to different grouting positions on the tunnel construction site without frequent disassembly or transportation, improving construction flexibility and efficiency. At the same time, the casters 91 ensure directional controllability and ease of operation during movement, while the arc-shaped bracket 1 fixed to the base 9 provides the stable support required during grouting, thus balancing the safety of construction operations with the ability to operate continuously.

[0050] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0051] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the principles of this invention should be included within the scope of protection of this invention.

Claims

1. A grouting device for tunnel construction, characterized in that, The utility model provides a kind of arc-shaped support, arc-shaped guide rail is equipped with;Movable seat is sleeved on the arc-shaped support, and along the arc-shaped guide rail sliding, movable seat side is equipped with with the arc-shaped support vertical guide sliding groove;Supporting component includes support, driving part and along guide sliding groove direction extension rotating rod, the support sliding is arranged on the guide sliding groove, the first end of the rotating rod is rotationally arranged on the support with the rotating rod as the axis, and the driving part is used to drive the support along the guide sliding groove sliding;Guide pipe is arranged on the second end of the rotating rod;Slip casting pipe, the guide pipe is sleeved on the slip casting pipe, and the output end of the slip casting pipe is located outside the guide pipe;First electric push rod is arranged on the guide pipe, and the output end of the first electric push rod is connected with the slip casting pipe, and the first electric push rod is used to push the slip casting pipe and move along the guide pipe;First motor is used to drive the movable seat and move along the arc-shaped support. The supporting component further includes a second electric push rod and a limiting frame provided on the output end of the second electric push rod, the second electric push rod is arranged on the support, the guide pipe is rotationally arranged on the second end of the rotating rod with the first direction as the axis, the guide pipe passes through the limiting frame, the inner frame width of the limiting frame is greater than the diameter of the guide pipe, the second electric push rod is used to drive the limiting frame to move along the extension direction of the guide sliding groove, and the first direction, the guide sliding groove and the guide pipe are perpendicular to each other. The side of the guide pipe is provided with a cylindrical protrusion, and the second end of the rotating rod is provided with a fixed hole extending in the first direction, and the cylindrical protrusion is rotationally arranged on the fixed hole. The movable seat includes a frame, a gear and a pulley, the arc-shaped support is provided with a rack engaged with the gear, the frame is sleeved on the arc-shaped support, the gear and the pulley are both rotationally arranged on the inner frame of the frame, the pulley slides along the arc-shaped guide rail, and the first motor is used to drive the gear to rotate. The arc-shaped guide rail and the rack are located on the outer and inner ring surfaces of the arc-shaped support respectively, the arc-shaped guide rail is an arc-shaped sliding groove, and the width of the pulley is the same as the width of the arc-shaped sliding groove. The arc-shaped support is provided with a plurality of through holes, and the plurality of through holes are equidistantly arranged along the arc-shaped sliding groove, the through holes are located at the bottom of the arc-shaped sliding groove, and the width of the through holes is less than the width of the arc-shaped sliding groove. The supporting component further includes a limiting ring arranged on the support, the limiting ring is located in front of the pipe opening of the guide pipe, and the output end of the slip casting pipe passes through the limiting ring. The supporting component further includes a material bucket arranged on the support, and the material bucket is located below the output end of the slip casting pipe.

2. The grouting device for tunnel construction according to claim 1, characterized by The driving part is a third electric push rod, and the two ends of the third electric push rod are connected with the movable seat and the support respectively, and the third electric push rod is used to push the support to move in the vertical direction.

3. The grouting device for tunnel construction according to claim 2, characterized by ​ 4. The grouting device for tunnel construction according to claim 1, characterized by ​ 5. The grouting device for tunnel construction according to claim 4, characterized by ​ 6. The grouting device for tunnel construction according to claim 5, wherein ​ 7. The grouting device for tunnel construction according to claim 1, wherein ​ 8. The grouting device for tunnel construction according to claim 1, wherein ​ 9. The grouting device for tunnel construction according to claim 1, wherein ​ 10. The grouting device for tunnel construction according to claim 1, wherein The arc-shaped support is connected with a base at the bottom end, and the base is provided with universal wheels at the bottom.

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