A mobile grouting device for filling gaps in prefabricated duct panels in underground loops

Abstract

The present invention discloses a mobile grouting device for filling gaps in prefabricated air duct plates in underground loops, comprising a supporting member, a supporting box, a control console, a main oil chamber, a steering mechanism, a driving mechanism and a grouting mechanism. The supporting box is mounted on the supporting member, the control console and the main oil chamber are mounted on the inner upper part of the supporting box, the steering mechanism and the driving mechanism are mounted on the inner lower part of the supporting box, and the grouting mechanism is mounted on the rear part of the supporting box. The control console comprises a main control console, a lighting control console and a motor control console. A hydraulically controlled one-way valve is connected to the lower side of the main oil chamber, and the hydraulically controlled one-way valve is connected to a hydraulic oil pipe and a control oil pipe. The beneficial effects of the present invention are as follows: the present invention can make up for the deficiency that construction workers cannot efficiently perform grouting operations in narrow spaces and low clearances, can effectively reduce the number of construction workers, and thus save labor costs. The entire device has a simple structure and is easy to operate. It can improve the standardization and accuracy of operations during construction, avoid safety risks brought about by complex construction environments, and has higher safety. The device also has the advantages of fast construction speed and high construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of underground loop construction, and in particular to a mobile grouting device for filling gaps in prefabricated air duct plates of underground loops. Background Art

[0002] As my country's engineering construction continues to develop, the number of surface and high-rise buildings is gradually approaching saturation, and the focus of engineering construction is gradually shifting to the utilization of underground space. To resolve the conflict between urban core development and transportation land use, some domestic cities have planned three-dimensional transportation and built a number of urban underground garage connecting roads, referred to as underground loops. The emergence of underground loops can improve the efficiency of static transportation in core areas, alleviate the conflict between ground traffic and pedestrian traffic in urban core areas, improve regional environmental quality, and realize the concept of low-carbon transportation.

[0003] When designing an underground loop, an exhaust duct is often installed on the top of the loop to ensure ventilation and air pressure balance. However, due to the small available space, the duct is generally constructed by splicing prefabricated duct panels. When using lifting equipment to splice the prefabricated duct panels, due to operational reasons and prefabricated duct panel technology, the prefabricated duct panels are often not spliced ​​compactly, and gaps exist between the duct panels. In addition, in order to facilitate the installation and fixation of the duct panels, holes are often reserved at the side wall corbels and embedded connectors. To ensure the use effect of the exhaust duct, the holes need to be grouting after splicing the prefabricated duct panels. However, due to the small clearance of the exhaust duct on the top of the designed loop, generally around 1m, manual grouting is difficult, the grouting efficiency is low, and the safety risk is high.

[0004] In view of the above engineering difficulties, in order to meet the requirements of small size and easy mobility, the impact of grouting efficiency and cost is taken into account.

[0005] Therefore, it is necessary to propose a mobile grouting device for filling the gaps in the prefabricated air duct plates of the underground loop to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a mobile grouting device for filling gaps in prefabricated air duct plates of underground loops, so as to solve the above-mentioned problems.

[0007] A mobile grouting equipment for filling gaps in prefabricated air duct plates in underground loops, comprising a supporting member, a supporting box, a control console, a main oil chamber, a steering mechanism, a driving mechanism and a grouting mechanism, wherein the supporting box is mounted on the supporting member, the control console and the main oil chamber are mounted on the inner upper part of the supporting box, the steering mechanism and the driving mechanism are mounted on the inner lower part of the supporting box, and the grouting mechanism is mounted on the rear part of the supporting box, the control console comprises a main control console, a lighting control console, a motor control console and a hydraulic control console, a hydraulically controlled one-way valve is connected to the lower side of the main oil chamber, the hydraulically controlled one-way valve is connected to a hydraulic oil pipe and a control oil pipe, the hydraulic oil pipe and the control oil pipe are connected to an oil pump, the oil pump is electrically connected to the hydraulic control console, the main control console is connected to a power supply via electric wires, and the main control console is respectively connected to the lighting control console, the motor control console and the hydraulic control console.

[0008] Preferably, the supporting member includes a supporting foot, a side wall support rod, an oil inlet pipe, an oil outlet pipe, a transverse connecting rod, a hydraulic oil chamber, a hydraulic telescopic column, a base enlarged head and a supporting base. The side wall support rod is connected to the supporting foot, and a hydraulic oil chamber is provided at the lower part of the side wall support rod. A hydraulic telescopic column is provided in the hydraulic oil chamber, and the upper part of the hydraulic telescopic column is connected to one end of the transverse connecting rod, and the other end of the transverse connecting rod is connected to the supporting base through an enlarged head. A hydraulically controlled one-way valve is connected to the side of the hydraulic oil chamber, and the oil inlet pipe and the oil outlet pipe are both connected to the hydraulically controlled one-way valve.

[0009] Preferably, the side wall support rod is installed with a straight tube light and an oblique tube light, and the side edge of the side wall support rod is installed with a camera through a rotating head.

[0010] Preferably, the grouting mechanism includes a repair material tube, a grouting nozzle and a movable grouting shaft. The repair material tube passes through the equipment body to reach the grouting. The grouting nozzle is installed on the movable grouting shaft. The repair material tube is provided with a ball valve, and the ball valve is provided with a ball valve switch.

[0011] Preferably, the driving mechanism includes a driving motor, a driving motor shaft and a driving wheel, and the output end of the driving motor is connected to the driving wheel through the driving motor shaft.

[0012] Preferably, the steering mechanism includes a steering motor, a motor connecting shaft, a wheel hub, a rotating gear, a transverse gear, a first universal joint, a second universal joint and a steering shaft. The transmission of the steering motor is connected to the motor connecting shaft, the wheel hub is fixed to the center position of the rotating gear, the motor connecting shaft drives the wheel hub to rotate through a chain, and the rotating gear is engaged with the transverse rack.

[0013] Preferably, both ends of the transverse rack are connected to the second universal joint through a first universal joint, the second universal joint is connected to a steering shaft, and the steering shaft is fixed to the steering wheel.

[0014] Preferably, the movable grouting shaft includes a ball baffle, a ball, a hydraulic top plate and a horizontal hydraulic oil chamber. The ball baffle is installed in the horizontal hydraulic oil chamber and is slidingly connected to the horizontal hydraulic oil chamber. The ball is installed on the ball baffle, and hydraulic top plates are provided at both ends of the ball baffle.

[0015] Preferably, both ends of the horizontal hydraulic oil chamber are provided with hydraulically controlled one-way valves, the supporting foot includes a hydraulic outer column and a hydraulic inner column, the upper end of the hydraulic inner column is inserted into the hydraulic outer column, the upper part of the hydraulic outer column is provided with a hydraulically controlled one-way valve, and the lower part of the hydraulic inner column is provided with several serrated protrusions.

[0016] Preferably, the hydraulically controlled one-way valve includes a control oil inlet, a hydraulic oil inlet, a hydraulic column, a spring housing, a hydraulic oil outlet, a spring and a valve body. The valve body is provided with a control oil inlet, a hydraulic oil inlet and a hydraulic oil outlet. The hydraulic column is provided at the control oil inlet. The spring is installed on the valve body near the hydraulic oil outlet, and the spring housing is connected to the spring.

[0017] Compared with the existing technology, the present invention has the following beneficial effects: the present invention can make up for the deficiency that construction workers cannot efficiently perform grouting operations in narrow spaces and low clearances, can effectively reduce the number of construction workers, and thus save labor costs. The entire equipment has a simple structure and is easy to operate. It can improve the standardization and accuracy of operations during the construction process, avoid the safety risks brought about in complex construction environments, and is safer. The equipment also has the advantages of fast construction speed and high construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main body of the device of the present invention;

[0019] Figure 2 This is a schematic diagram of the back grouting structure of the device of the present invention;

[0020] Figure 3 This is a schematic diagram of the steering principle of the steering wheel of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the movable grouting shaft of the present invention;

[0022] Figure 5 This is a schematic diagram of the support foot structure at the bottom of the device body of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the hydraulically controlled one-way valve of the present invention.

[0024] 1. Electrical wires; 2. Main oil chamber; 3. Main control console; 4. Lighting control console; 5. Motor control console; 6. Oil pressure control console; 7. Control oil pipe; 8. Hydraulic oil pipe; 9. Hydraulic control one-way valve; 91. Control oil inlet; 92. Hydraulic oil inlet; 93. Hydraulic column; 94. Spring housing; 95. Hydraulic oil outlet; 96. Spring; 97. Valve body; 10. Repair material pipe; 11. Ball valve; 12. Ball valve switch; 13. Oil pipeline; 14. Drive motor shaft; 15. Drive motor; 16. Steering motor shaft; 17. Steering motor; 18. Driving wheel; 19. Support foot; 191. Hydraulic outer column; 192. Hydraulic inner column ;193, bottom serration, 20, steering wheel; 21, side wall support rod; 22, straight tube lamp; 23, camera; 24, rotating head; 25, oil inlet pipe; 26, oil outlet pipe; 27, horizontal connecting rod; 28, hydraulic oil chamber; 29, hydraulic telescopic column; 30, inclined tube lamp; 31, grouting nozzle; 32, movable grouting shaft; 321, ball baffle; 322, ball; 323, hydraulic top plate; 324, horizontal hydraulic oil chamber; 33, enlarged head; 34, support base; 35, motor connecting shaft; 36, wheel hub; 37, rotating gear; 38, horizontal rack; 39, first universal joint; 40, second universal joint; 41, steering shaft; 42, chain. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0029] like Figure 1 Combined with Figures 2 to 6 As shown, a mobile grouting equipment for filling gaps in prefabricated air duct plates in underground loops includes a supporting member, a supporting box, a control console, a main oil chamber, a steering mechanism, a driving mechanism and a grouting mechanism. The supporting box is installed on the supporting member, the control console and the main oil chamber are installed in the inner upper part of the supporting box, the steering mechanism and the driving mechanism are installed in the inner lower part of the supporting box, and the grouting mechanism is installed at the rear of the supporting box. The control console includes a main control console 3, a lighting control console 4, a motor control console 5 and a hydraulic control console 6. The lower side of the main oil chamber 2 is connected to a hydraulically controlled one-way valve 9, the hydraulically controlled one-way valve 9 is connected to a hydraulic oil pipe 8 and a control oil pipe 7, the hydraulic oil pipe 8 and the control oil pipe 7 are connected to an oil pump, the oil pump is electrically connected to the hydraulic control console 6, the main control console 3 is connected to a power supply through an electric wire 2, and the main control console 3 is respectively connected to the lighting control console 4, the motor control console 5 and the hydraulic control console 6.

[0030] Furthermore, the supporting member includes a supporting foot 19, a side wall support rod 21, an oil inlet pipe 25, an oil outlet pipe 26, a transverse connecting rod 27, a hydraulic oil chamber 28, a hydraulic telescopic column 29, a base enlarged head 33 and a supporting base 34. The side wall support rod 21 is connected to the supporting foot 19. A hydraulic oil chamber 28 is provided at the lower part of the side wall support rod 21. A hydraulic telescopic column 29 is provided in the hydraulic oil chamber 28. The upper part of the hydraulic telescopic column 29 is connected to one end of the transverse connecting rod 27, and the other end of the transverse connecting rod 27 is connected to the supporting base 34 through an enlarged head 33. The side of the hydraulic oil chamber 28 is connected to a hydraulically controlled one-way valve 9, and the oil inlet pipe 25 and the oil outlet pipe 26 are both connected to the hydraulically controlled one-way valve 9.

[0031] Furthermore, the side wall support rod 21 is installed with a straight tube light 22 and an oblique tube light 30 , and a camera 23 is installed on the side of the side wall support rod 21 through a rotating head 24 . The straight tube light 22 and the oblique tube light 30 are both electrically connected to the lighting control console 4 .

[0032] Furthermore, the grouting mechanism includes a repair material tube 10, a grouting nozzle 31 and a movable grouting shaft 32. The repair material tube 10 passes through the equipment body to reach the grouting nozzle 31. The grouting nozzle 31 is installed on the movable grouting shaft 32. The repair material tube 10 is provided with a ball valve 11, and the ball valve 11 is provided with a ball valve switch 12.

[0033] Furthermore, the driving mechanism includes a driving motor 15 , a driving motor shaft 16 and a driving wheel 18 . The output end of the driving motor 15 is connected to the driving wheel 18 via the driving motor shaft 16 . The driving motor 15 is electrically connected to the motor control console 5 .

[0034] Furthermore, the steering mechanism includes a steering motor 17, a motor connecting shaft 35, a wheel hub 36, a rotating gear 37, a transverse gear 38, a first universal joint 39, a second universal joint 40 and a steering shaft 41. The transmission of the steering motor 17 is connected to the motor connecting shaft 35, the wheel hub 36 is fixed to the center position of the rotating gear 37, the motor connecting shaft 35 drives the wheel hub 36 to rotate through a chain 42, the rotating gear 37 is engaged with the transverse rack 38, and the steering motor 17 is electrically connected to the motor console 5.

[0035] Furthermore, both ends of the transverse rack 38 are connected to the second universal joint 40 through a first universal joint 39 , the second universal joint 40 is connected to a steering shaft 41 , and the steering shaft 41 is fixed to the steering wheel 20 .

[0036] Furthermore, the movable grouting shaft 32 includes a ball baffle 321, a ball 322, a hydraulic top plate 323 and a horizontal hydraulic oil chamber 324. The ball baffle 321 is installed in the horizontal hydraulic oil chamber 324 and is slidingly connected to the horizontal hydraulic oil chamber 324. The ball 322 is installed on the ball baffle 321. Hydraulic top plates 323 are provided at both ends of the ball baffle 321.

[0037] Furthermore, both ends of the horizontal hydraulic oil chamber 324 are provided with hydraulically controlled one-way valves 9, the supporting foot 19 includes a hydraulic outer column 191 and a hydraulic inner column 192, the upper end of the hydraulic inner column 192 is inserted into the hydraulic outer column 191, the upper part of the hydraulic outer column 191 is provided with a hydraulically controlled one-way valve 9, and the lower part of the hydraulic inner column 192 is provided with a plurality of serrated protrusions 193.

[0038] Furthermore, the hydraulically controlled one-way valve 9 includes a control oil inlet 91, a hydraulic oil inlet 92, a hydraulic column 93, a spring housing 94, a hydraulic oil outlet 95, a spring 96 and a valve body 97. The valve body 97 is provided with a control oil inlet 91, a hydraulic oil inlet 92 and a hydraulic oil outlet 95. The hydraulic column 93 is provided at the control oil inlet 91. The spring 96 is installed on the valve body 97 near the hydraulic oil outlet 95. The spring housing 94 is connected to the spring 96.

[0039] Compared with the existing technology, the present invention has the following beneficial effects: the present invention can make up for the deficiency that construction workers cannot efficiently perform grouting operations in narrow spaces and low clearances, can effectively reduce the number of construction workers, and thus save labor costs. The entire equipment has a simple structure and is easy to operate. It can improve the standardization and accuracy of operations during the construction process, avoid the safety risks brought about in complex construction environments, and is safer. In addition, the equipment also has the advantages of fast construction speed and high construction efficiency.

[0040] The device of the present invention mainly comprises a control part, a movement and identification part, a support part and a grouting part.

[0041] By using the control part to control the movement and identification part to move the grouting equipment to the specified grouting position, then controlling the support part to support the entire equipment, and finally using the grouting part to grout the gaps and reserved holes of the prefabricated air duct plate, the main console 3 can efficiently control the sub-consoles, thereby controlling each part of the equipment and feeding back the situation to the control terminal. The hydraulically controlled one-way valve 9 can effectively control the flow of hydraulic oil to provide hydraulic pressure and unloading for the expansion and contraction of the support foot 19, the hydraulic telescopic column 29 and the mobile grouting shaft 32. Under the circumstance, the equipment relies on the driving wheel 18 and the steering wheel 20 to achieve all-round movement so that the equipment can quickly reach the designated grouting position. The combination of the straight tube light and the oblique tube light can ensure that there is sufficient light in front of the equipment and at the grouting nozzle 31, providing strong support for the recognition and feedback of the camera 23. The camera 23 can be rotated by the rotating head 24 and can achieve 180° rotation. It can identify and feedback the road conditions in front of the equipment and the completion status of grouting. With the assistance of the light and the camera 24, it can accurately identify the road conditions and feedback the movement and equipment positioning to the control terminal for subsequent control and adjustment.

[0042] The ball valve 11 can control the timing of the entry of the repair material to avoid the waste caused by the repair material flowing out of the grouting nozzle 31 when the preliminary preparation is not completed. The positions of the drive motor 15 and the steering motor 17 are both close to the front, which can balance the gravity of the back structure to a certain extent and prevent the equipment from tilting and instability. The support part can effectively balance the reaction force of the grouting nozzle 31 during grouting to prevent the equipment from tipping over and moving. The serrated protrusions 193 at the bottom can increase the friction of the support feet 19 when the equipment is fixed, so as to avoid the equipment from shaking during grouting and affecting the grouting effect. The back grouting structure is detachable and is fixed to the equipment body by bolts during grouting. Moving the grouting shaft 32 can make the grouting nozzle move horizontally, thereby improving the grouting range and efficiency of each cycle. Under the action of hydraulic pressure, the hydraulic telescopic column 29 is extended and retracted to adjust the horizontal connection height to adjust the grouting position. The combination of the ball 322 and the ball baffle 321 is conducive to the movement of the grouting nozzle 31 and its upper structure, thereby ensuring that the grouting nozzle 31 moves repeatedly for grouting. The energy sources for driving and working the equipment are mainly electricity and hydraulics, which are clean and environmentally friendly and can avoid the generation of waste gas in the ventilation duct.

[0043] Control part: The wire 1 can provide power for the movement of the equipment, lighting, etc. The operator controls the main control console 3 through the control terminal, thereby controlling the lighting control console 4, the motor control console 5 and the oil pressure control console 6, and then controlling the turning on and off of the lights, the rotation and stop of the motor, and the supply and unloading of the oil pressure, ultimately realizing the all-round movement of the equipment, the lighting of the road conditions and grouting in front of the equipment, the recognition and feedback of the camera 23, and the telescopic support of the support part. The function of the ball valve 11 and the ball valve switch 12 is to control the timing of the entry of the repair material to avoid the waste caused by the outflow of the repair material from the grouting nozzle 31 when the preliminary preparation is not completed, and the function of the hydraulically controlled one-way valve 9 is to control the flow of hydraulic oil in the main oil chamber 2, the control oil pipe 7, the hydraulic oil pipe 8 and the oil supply and oil pipe 13, as well as the reflux of the oil outlet pipe 26 during contraction, ultimately realizing the extension and retraction of the support leg 19, the hydraulic telescopic column 29 and the movable grouting shaft 32.

[0044] Movement and identification part: When the equipment moves, first use the lighting control console 4 to turn on the straight tube light 22 and the oblique tube light 30 to provide lighting for the equipment movement and the camera 23. The function of the camera 23 is to identify and feedback the equipment position and the road conditions ahead, so that the equipment can accurately move to the designated position. Then use the motor control console 5 to control the drive motor 15 to rotate, thereby driving the drive motor shaft 14 and the driving wheel 18 to rotate in turn, so that the equipment obtains forward power. When the direction needs to be changed, the motor control console 5 is then used to control the steering motor 17 to rotate, and then drive the steering motor shaft 16 and the steering wheel 20 in turn, thereby completing the steering, so that the equipment can move to any designated position.

[0045] Support part: When the equipment moves to the designated position, the support foot 19 is first extended by hydraulic pressure to fix it on the air duct plate, and then the hydraulic oil is transported by the oil inlet pipe 25 on the side wall support 21. The hydraulic oil continuously enters the hydraulic oil chamber 28, and the hydraulic telescopic column 29 is extended under the hydraulic action provided by the hydraulic oil, thereby driving the horizontal connection 27 to rise, so that the support base 34 supports the top of the ventilation duct, and the grouting reaction force during the grouting operation is transmitted to the top of the ventilation duct by using the enlarged head 33 and the support base 34 to prevent the equipment from tipping over due to the grouting reaction force. After each grouting cycle is completed, the hydraulic oil is returned to the main oil chamber 2 through the oil outlet pipe 26, so that the height of the support base 34 is reduced and no longer fits the top of the ventilation duct, making it easier for the equipment to move to the next cycle position.

[0046] Grouting part: After the equipment is fixed at the designated position, the ball valve switch 12 is used to open the ball valve 11, and then the repair material passes through the equipment body through the repair material tube 10 to reach the grouting nozzle 31, and the grouting nozzle 31 is used to inject the repair material into the gaps and reserved holes of the prefabricated air duct plate. The function of the movable grouting shaft 32 is to make the grouting nozzle 31 and the repair material tube 10 move parallel to the gaps of the prefabricated air duct plate, so that the grouting construction can be completed efficiently.

[0047] like Figure 3 As shown, the device mainly relies on the steering component when turning, and the steering component mainly includes a steering motor 17, a motor connecting shaft 35, a wheel hub 36, a rotating gear 37, a transverse gear 38, a first universal joint 39, a second universal joint 40 and a steering shaft 41. The steering motor 17 rotates to drive the motor connecting shaft 35 to rotate, and drives the wheel hub 36 and the rotating gear 37 through the chain, so that the transverse gear 38 moves horizontally, and then causes the first universal joint 39 and the second universal joint 40 to rotate in turn, and uses the steering shaft 41 to convert it into a force for rotating the steering wheel 20, thereby realizing the steering of the device.

[0048] like Figure 4 As shown, the horizontal movable grouting structure is mainly composed of a ball baffle 321, a ball 322, a hydraulic top plate 323 and a horizontal hydraulic oil chamber 324. Before grouting begins, the grouting nozzle 31 should be adjusted to the far left, and then a single grouting is started. After the single grouting is completed, the left hydraulic control one-way valve 9 controls the hydraulic oil to enter and provide hydraulic pressure, pushing the left hydraulic top plate 323, causing the grouting nozzle 31 and the repair material pipe 10 to move to the right, and then continue the single grouting. When each grouting cycle is completed, the moving part is used to move the equipment to the next grouting position, and then the right hydraulic control one-way valve 9 is used to control the hydraulic oil to enter and provide hydraulic pressure, pushing the right hydraulic top plate 323, causing the grouting nozzle 31 to perform the next cycle grouting from right to left. The role of the ball 322 is to facilitate the movement of the grouting nozzle 31 and its upper structure, and the role of the ball baffle 321 is to prevent the ball from falling, thereby ensuring the repeated movement of the structure.

[0049] like Figure 5As shown, the supporting structure is mainly composed of a hydraulic outer column 191, a hydraulic inner column 192 and a bottom serration 193. The hydraulic oil enters the hydraulic outer column 191 through the hydraulically controlled one-way valve 9, and pushes the hydraulic inner column to extend under the action of the hydraulic pressure, thereby propping up the main body of the equipment, so that the driving wheel 18 and the steering wheel 20 are separated from the ground, and the equipment is fixed above the ventilation duct. In addition, the bottom serration 193 can effectively increase the friction between the supporting foot 19 and the ground, and can better balance the grouting reaction force.

[0050] like Figure 6 As shown, the hydraulically controlled one-way valve is mainly composed of a control oil inlet 91, a hydraulic oil inlet 92, a hydraulic column 93, a spring housing 94, a hydraulic oil outlet 95 and a spring 96. When the hydraulically controlled one-way valve 9 is in one-way flow, the hydraulic oil enters the valve from the hydraulic oil inlet 92, and under the action of the hydraulic pressure, the spring housing 94 is forced to move downward, thereby causing the spring 96 to be compressed, and then the hydraulic oil flows out from the hydraulic oil outlet 95. When reflux is required, the control oil enters the upper half of the valve from the control oil inlet 91, causing the hydraulic column 93 to move downward, thereby causing the spring housing 94 to move downward, compressing the spring 94, and causing the hydraulic oil to reflux from the hydraulic oil outlet 95. By controlling the inflow and outflow of the control oil, the one-way flow and reflux of the hydraulic oil are realized, thereby controlling the hydraulic lift.

[0051] During grouting construction, the equipment is first placed in the assembled air duct board, and then the equipment power is started to provide power for the equipment. The main control console 3 is controlled by the control terminal to control the lighting control console 4 in turn to turn on the straight tube light 22 and the oblique tube light 30 to provide lighting for equipment movement, grouting and camera, so as to move the equipment to the designated position; the motor control console 5 is controlled to run the drive motor 15 and the steering motor 17 respectively, driving the drive motor shaft 14 and the steering motor shaft 16 to rotate, thereby providing forward power and steering for the equipment, so as to move the equipment to the designated position; after reaching the designated position, the oil pressure control console 6 is controlled to provide hydraulic power for the bottom support foot 19, so that the support foot 19 is extended up and down under the action of hydraulic pressure, thereby fixing the entire equipment and balancing the grouting reaction force, and adjusting the hydraulic pressure to extend the hydraulic telescopic column 29, thereby driving the horizontal connection (27) to rise, so that the support base 34 is supported against the top of the ventilation duct, and the base expansion head 33 and the support base 34 are used to grout the duct. After the grouting is completed, the grouting nozzle 31 is removed and the camera 23 is rotated to observe the grouting effect. When the grouting is completed, the grouting nozzle 31 and the repairing material pipe 10 are rotated to the next grouting position. When the grouting work is completed within the effective range of the movable grouting shaft 32, the hydraulic control one-way valve 9 is opened by the control oil to allow the hydraulic oil to reflux, thereby shrinking the support part, and then the mobile part is used to move the equipment to the next grouting position for the next cycle construction. When all the grouting operations are completed, the equipment is remotely controlled to the air duct outlet, and then it is removed, the grouting nozzle 31 is removed, and the repairing material pipe 10 is cleaned with clean water.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mobile grouting device for filling gaps in prefabricated duct panels in underground loops, characterized by: The invention comprises a supporting member, a supporting box, a control console, a total oil chamber (2), a steering mechanism, a driving mechanism and a grouting mechanism, wherein the supporting box is mounted on the supporting member, the control console and the total oil chamber are mounted on the inner upper part of the supporting box, the steering mechanism and the driving mechanism are mounted on the inner lower part of the supporting box, and the grouting mechanism is mounted on the rear part of the supporting box, the control console comprises a total control console (3), a lighting control console (4), a motor control console (5) and an oil pressure control console (6), the lower side of the total oil chamber (2) is connected to a hydraulically controlled one-way valve (9), the hydraulically controlled one-way valve (9) is connected to a hydraulic oil pipe (8) and a control oil pipe (7), the hydraulic oil pipe (8) and the control oil pipe (7) are connected to an oil pump, and the oil pump is electrically connected to the oil pressure control console (6), the main control console (3) is connected to the power supply through the wire (1), and the main control console (3) is respectively connected to the lighting control console (4), the motor control console (5) and the oil pressure control console (6); the supporting member includes a supporting foot (19), a side wall support rod (21), an oil inlet pipe (25), an oil outlet pipe (26), a transverse connecting rod (27), a hydraulic oil chamber (28), a hydraulic telescopic column (29), a base enlarged head (33) and a supporting base (34), the side wall support rod (21) is connected to the supporting foot (19), a hydraulic oil chamber (28) is provided at the lower part of the side wall support rod (21), a hydraulic telescopic column (29) is provided in the hydraulic oil chamber (28), and the upper part of the hydraulic telescopic column (29) is provided with a hydraulic oil chamber (28). The side wall support rod (21) is connected to one end of the transverse connecting rod (27), and the other end of the transverse connecting rod (27) is connected to the support base (34) through an enlarged head (33). The side of the hydraulic oil chamber (28) is connected to a hydraulically controlled one-way valve (9), and the oil inlet pipe (25) and the oil outlet pipe (26) are both connected to the hydraulically controlled one-way valve (9); the side wall support rod (21) is equipped with a straight tube light (22) and an oblique tube light (30), and the side of the side wall support rod (21) is equipped with a camera (23) through a rotating head (24). The straight tube light (22) and the oblique tube light (30) are both electrically connected to the lighting control console (4); the grouting mechanism includes a repair material tube (10), a grouting nozzle (31) and a movable grouting shaft (32). The repair material pipe (10) passes through the equipment body and reaches the grouting nozzle (31). The grouting nozzle (31) is installed on the movable grouting shaft (32). The repair material pipe (10) is provided with a ball valve (11). The ball valve (11) is provided with a ball valve switch (12). The movable grouting shaft (32) includes a ball baffle (321), a ball (322), a hydraulic top plate (323) and a horizontal hydraulic oil chamber (324). The ball baffle (321) is installed in the horizontal hydraulic oil chamber (324) and is slidably connected to the horizontal hydraulic oil chamber (324). The ball (322) is installed on the ball baffle (321). The left and right ends of the ball baffle (321) are both provided with hydraulic top plates (323).Both ends of the horizontal hydraulic oil chamber (324) are provided with a hydraulically controlled one-way valve (9). The support leg (19) includes a hydraulic outer column (191) and a hydraulic inner column (192). The upper end of the hydraulic inner column (192) is inserted into the hydraulic outer column (191). The upper part of the hydraulic outer column (191) is provided with a hydraulically controlled one-way valve (9). The lower part of the hydraulic inner column (192) is provided with a plurality of sawtooth protrusions (193). The hydraulically controlled one-way valve (9) includes a control oil inlet (91), A hydraulic oil inlet (92), a hydraulic column (93), a spring housing (94), a hydraulic oil outlet (95), a spring (96) and a valve body (97); the valve body (97) is provided with a control oil inlet (91), a hydraulic oil inlet (92) and a hydraulic oil outlet (95); the hydraulic column (93) is provided at the control oil inlet (91); the spring (96) is installed on the valve body (97) near the hydraulic oil outlet (95); and the spring housing (94) is connected to the spring (96).

2. The mobile grouting equipment for filling gaps in prefabricated underground loop air duct panels according to claim 1, characterized in that: The driving mechanism comprises a driving motor (15), a driving motor shaft (16) and a driving wheel (18); the output end of the driving motor (15) is connected to the driving wheel (18) via the driving motor shaft (16); and the driving motor (15) is electrically connected to the motor control console (5).

3. The mobile grouting equipment for filling gaps in prefabricated underground loop air duct panels according to claim 2, characterized in that: The steering mechanism comprises a steering motor (17), a motor connecting shaft (35), a wheel hub (36), a rotating gear (37), a transverse rack (38), a first universal joint (39), a second universal joint (40) and a steering shaft (41), wherein the steering motor (17) is connected to the motor connecting shaft (35) in a transmission manner, the wheel hub (36) is fixed to the center position of the rotating gear (37), the motor connecting shaft (35) drives the wheel hub (36) to rotate through a chain (42), the rotating gear (37) is engaged with the transverse rack (38), and the steering motor (17) is electrically connected to the motor control console (5).

4. The mobile grouting equipment for filling gaps in prefabricated underground loop air duct panels according to claim 3, characterized in that: Both ends of the transverse rack (38) are connected to the second universal joint (40) via a first universal joint (39); the second universal joint (40) is connected to a steering shaft (41); and the steering shaft (41) is fixed to the steering wheel (20).

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