Full-automatic grouting machine for trenchless repair

Abstract

The invention relates to the technical field of grouting, in particular to a full-automatic grouting machine for trenchless repair, which comprises a workbench, the bottom of a stirring cylinder is communicated with a crushing box through a discharging pipe, the crushing box is fixed on the top of the workbench, two large crushing rollers and two small crushing rollers are respectively and rotatably mounted above and below the inner wall of the crushing box, and the two large crushing rollers are fixed on the workbench. And a driving assembly is arranged between the large crushing roller and the small crushing roller, and the bottom of the crushing box communicates with a mortar pump. Through the arrangement of the large crushing roller and the small crushing roller, uniformly mixed slurry firstly falls onto the large crushing roller, the driving motor drives one large crushing roller to rotate, and the other large crushing roller rotates through the meshing of two large gears, so that the slurry can be preliminarily crushed, the two small crushing rollers crush the slurry for the second time, the crushed slurry is finer, and the crushing effect is better. And the slurry is directly injected into the underground hole without using a screen, so that the situation that the slurry injection efficiency is influenced by dismounting the screen for cleaning is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of grouting, and specifically provides a fully automatic grouting machine for trenchless repair. Background Art

[0002] Trenchless refers to a new construction technology that uses various geotechnical drilling and excavation equipment and technical means to lay, replace, and repair various underground pipelines by means of guiding and directional drilling with minimal excavation on the ground surface (generally referring to small-area excavation at the entrance and exit).

[0003] After the repair is completed, a grouting machine is required to fill the excavated underground holes with slurry for restoration.

[0004] Publication No.: CN214089824U includes a migration mechanism, on which a grouting filling mechanism is fixed. The grouting filling mechanism consists of a filtering and stirring component, a grouting component, and an exhaust and traction component. The grouting component and the exhaust and traction component are both fixedly installed on the filtering and stirring component. By controlling the operation of the blower in the exhaust and traction component of the present utility model, the blower sucks out the gas in the pores through the diversion pipe, and during the suction process, a certain traction is applied to the slurry injected into the pores. At the same time, the first driving motor in the grouting component drives the spiral auger to rotate, so that the slurry flowing into the grouting component from the filtering and stirring component can be better injected into the pores, and it cooperates with the exhaust and traction component, enabling the slurry in the pores to flow efficiently between the grouting component and the exhaust and traction component.

[0005] The applicant found that there are some deficiencies in the use of this patent: this patent filters large-particle materials in the slurry through a sieve to avoid blocking underground holes. The large-particle materials accumulate on the top of the sieve. When the accumulation is excessive, it affects the feeding and needs to be removed for cleaning, thus affecting the grouting efficiency.

[0006] Therefore, the present invention designs a fully automatic grouting machine for trenchless repair to solve the problems existing in the prior art. Summary of the Invention

[0007] The purpose of the present invention is to provide a fully automatic grouting machine for trenchless repair to solve the problems raised in the above background art.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a fully automatic grouting machine for trenchless repair, comprising: a workbench, movable wheels are arranged at the four corners of the bottom of the workbench, a mixing drum is arranged on the upper side of the workbench, a mixing device is arranged in the mixing drum, the bottom of the mixing drum is connected to a crushing box through a feeding pipe, the crushing box is fixed to the top of the workbench, two large crushing rollers and two small crushing rollers are rotatably installed above and below the inner wall of the crushing box, a driving assembly is arranged between the large crushing roller and the small crushing roller, a mortar pump is connected to the bottom of the crushing box, an electric cylinder is installed at the bottom of the workbench, the output end of the electric cylinder is connected to a lifting plate, a grouting head is installed at the bottom of the lifting plate, the grouting head and the mortar pump are connected through a telescopic bellows, a gantry is installed on the top side of the workbench, and the An electric push rod is installed on the top of the gantry, and the output end of the electric push rod is connected to a transparent box. The bottom of the transparent box is connected to an exhaust pipe slidably installed with the workbench. An exhaust fan is provided on the top of the transparent box, and a box door is hinged at the bottom of one side of the transparent box. A filter is provided in the transparent box, and a limit assembly is provided between the box door and the transparent box. The mixed material first falls onto a large crushing roller, and a driving motor drives a large crushing roller to rotate. The other large crushing roller is rotated through the engagement of two large gears, so that the slurry can be initially crushed. Then the slurry falls onto a small crushing roller, and through the transmission of a sprocket and a chain and the engagement of two small gears, the two small crushing rollers crush the slurry for a second time. The crushed slurry is finer and is directly injected into the underground holes without the use of a screen, thereby avoiding the situation where the screen is removed for cleaning and affects the grouting efficiency.

[0009] Preferably, a frame is installed on the outer side wall of the crushing box, a driving motor is installed on the frame, the output end of the driving motor is connected to one side of a large crushing roller, a large gear is installed on one side of the two large crushing rollers, the two large gears are meshed with each other, a small gear is installed on one side of the two small crushing rollers, the two small gears are meshed with each other, a sprocket is installed on one side of the small crushing roller and one side of the large crushing roller, the two sprockets are driven by a chain, and the drive motor drives the large and small crushing rollers to rotate synchronously at the same time through the transmission of the sprocket and the chain, saving the use of one motor.

[0010] Preferably, the limiting component includes an L-shaped plate fixedly installed on the top of the box door. Through holes are formed at both ends of the L-shaped plate. A bolt is slidably installed in the through hole and connected to the L-shaped plate through a spring. A plug block connected through the bolt is installed at the top of the transparent box close to the box door. Through the restoring force of the spring, the bolt penetrates through the plug block, and the box door and the transparent box can be fixed. When it is necessary to open the box door to clean the inner wall of the transparent box, the bolt can be pressed to make the bolt leave the jack and squeeze the spring, and then the box door can be rotated downward to open. The operation is convenient, which is convenient for cleaning the inner wall of the transparent box. By cleaning the inner wall of the transparent box, it is convenient for the staff to observe the slurry in the transparent box, so as to stop grouting in time.

[0011] Preferably, an air ring fixedly installed with the lifting plate is arranged on the outer side of the telescopic bellows. A plurality of air pipes are arranged at the bottom of the air ring. An air pump communicated with the air ring is installed on the top of the lifting plate. When the air pump is started, the gas enters the air ring and then sprays downward through the air pipes, which can accelerate the descent of the slurry in the underground hole.

[0012] Preferably, U-shaped plates are installed on the inner walls at both ends of the transparent box. The filter screen is slidably installed between the two U-shaped plates. After the box door is closed, the filter screen can be pressed against the U-shaped plates to fix it. When the box door is opened, the filter screen can be taken out from the U-shaped plates, which is convenient for disassembly and assembly.

[0013] Preferably, a sealing cover is installed on the lower part of the outer side wall of the air extraction pipe. The sealing cover can seal the additionally drilled hole during air extraction, improving the air extraction effect.

[0014] Preferably, a push rod is installed on one side of the top of the workbench close to the gantry. A rubber sleeve is sleeved on the upper part of the outer side wall of the push rod. The push rod is convenient for the staff to push the workbench to move.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. Through the setting of the large and small crushing rollers in the present invention, the firstly mixed and reduced materials first fall onto the large crushing roller. The driving motor drives one large crushing roller to rotate, and through the meshing of the two large gears, the other large crushing roller rotates, so as to initially crush the slurry. Then the slurry falls onto the small crushing roller, and through the transmission of the sprocket and chain and the meshing of the two small gears, the two small crushing rollers crush the slurry for the second time. The crushed slurry is finer and can be directly injected into the underground hole without using a sieve, avoiding the situation that the injection efficiency is affected by removing the sieve for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view schematic diagram of the present invention;

[0018] Figure 2 is the top view schematic diagram of the present invention;

[0019] Figure 3 is the upward view schematic diagram of the present invention;

[0020] Figure 4 is the structural schematic diagram of the driving component of the present invention;

[0021] Figure 5 is of the present invention Figure 1 amplified structural schematic diagram at position A;

[0022] Figure 6 is the structural schematic diagram of the limiting component of the present invention;

[0023] Figure 7 is the structural schematic diagram of the limiting component of the present invention.

[0024] In the figure: 1, workbench; 2, moving wheel; 3, mixing drum; 4, mixing equipment; 5, feeding pipe; 6, crushing box; 7, large crushing roller; 8, small crushing roller; 9, driving component; 901, frame; 902, driving motor; 903, large gear; 904, small gear; 905, sprocket; 906, chain; 10, mortar pump; 11, electric cylinder; 12, lifting plate; 13, grouting head; 14, telescopic bellows; 15, air ring; 16, air pipe; 17, air pump; 18, gantry; 19, electric push rod; 20, transparent box; 21, air extraction pipe; 22, sealing cover; 23, exhaust fan; 24, box door; 25, U-shaped plate; 26, filter screen; 27, limiting component; 271, L-shaped plate; 272, through hole; 273, bolt; 274, spring; 275, insertion block; 28, push rod. Specific Embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1-7, an embodiment provided by the present invention: a fully automatic grouting machine for trenchless repair, comprising: a workbench 1, moving wheels 2 are provided at the four corners of the bottom of the workbench 1, a mixing barrel 3 is provided on one side above the workbench 1, a mixing device 4 is arranged inside the mixing barrel 3, the bottom of the mixing barrel 3 is communicated with a crushing box 6 through a feeding pipe 5, the crushing box 6 is fixed on the top of the workbench 1, two large crushing rollers 7 and two small crushing rollers 8 are respectively rotatably installed above and below the inner wall of the crushing box 6, a driving assembly 9 is arranged between the large crushing roller 7 and the small crushing roller 8, the bottom of the crushing box 6 is communicated with a mortar pump 10, an electric cylinder 11 is installed at the bottom of the workbench 1, the output end of the electric cylinder 11 is connected with a lifting plate 12, a grouting head 13 is installed at the bottom of the lifting plate 12, the grouting head 13 and the mortar pump 10 are communicated through a telescopic bellows 14, a gantry 18 is installed on one side of the top of the workbench 1, an electric push rod 19 is installed at the top of the gantry 18, the output end of the electric push rod 19 is connected with a transparent box 20, an air extraction pipe 21 slidably installed with the workbench 1 is communicated at the bottom of the transparent box 20, an air extraction fan 23 is arranged at the top of the transparent box 20, a box door 24 is hinged at the bottom of one side of the transparent box 20, a filter screen 26 is arranged inside the transparent box 20, a limiting assembly 27 is arranged between the box door 24 and the transparent box 20, the mixing device 4 includes a mounting plate, the mounting plate is fixed above the inner wall of the mixing barrel, a mixing motor is installed at the top of the mounting plate, the output end of the mixing motor is installed with a mixing shaft, and a plurality of mixing blades are arranged below the outer side wall of the mixing shaft. The moving wheel 2 has a self-locking structure, and the moving wheel 2 is connected with the workbench through a support leg.

[0027] Please refer to Figure 1-3 , in this embodiment: a frame 901 is installed on the outer side wall of the crushing box 6, a driving motor 902 is installed on the frame 901, the output end of the driving motor 902 is connected with one side of a large crushing roller 7, large gears 903 are installed on one side of the two large crushing rollers 7, the two large gears 903 are meshed with each other, small gears 904 are installed on one side of the two small crushing rollers 8, the two small gears 904 are meshed with each other, sprockets 905 are installed on one side of one small crushing roller 8 and one side of one large crushing roller 7, and the two sprockets 905 are driven by a chain 906.

[0028] Please refer to Figure 1-3 , in this embodiment: the limiting assembly 27 includes an L-shaped plate 271, the L-shaped plate 271 is fixedly installed on the top of the box door 24, through holes 272 are opened at both ends of the L-shaped plate 271, a plug pin 273 is slidably installed in the through holes 272, the plug pin 273 is connected with the L-shaped plate 271 through a spring 274, and a plug block 275 penetrated by the plug pin 273 is installed on the top of the transparent box 20 close to one side of the box door 24.

[0029] Please refer to Figure 1-3, in this embodiment: An air ring 15 fixedly installed with the lifting plate 12 is provided on the outer side of the telescopic bellows 14. A number of air pipes 16 are provided at the bottom of the air ring 15. An air pump 17 communicating with the air ring 15 is installed at the top of the lifting plate 12.

[0030] Please refer to Figure 1-3 , in this embodiment: U-shaped plates 25 are installed on the inner walls at both ends of the transparent box 20. The filter screen 26 is slidably installed between the two U-shaped plates 25.

[0031] Please refer to Figure 1-3 , in this embodiment: A sealing cover 22 is installed below the outer side wall of the air extraction pipe 21.

[0032] Please refer to Figure 1-3 , in this embodiment: A push rod 28 is installed on one side of the top of the workbench 1 close to the gantry 18. A rubber sleeve is sleeved on the upper part of the outer side wall of the push rod 28.

[0033] Working principle: First, use a drilling machine to drill a hole and connect it to the underground hole to be repaired. Then move the grouting head 13 to the underground hole. The electric cylinder 11 drives the lifting plate 12 to descend, so that the grouting head 13 descends to the top of the underground hole. The air extraction pipe 21 then moves to another drilled hole. The electric push rod 19 drives the air extraction pipe 21 to descend into the hole. The sealing cover 22 covers the top of the hole. Then pour the slurry raw material into the mixing barrel 3 and after being stirred by the stirring device 4, it enters the large crushing roller 7 in the crushing box 6 through the feeding pipe 5. The drive motor 902 drives the large crushing roller 7 to rotate. Through the meshing of the two large gears 903, the other large crushing roller 7 rotates simultaneously, so as to initially crush the large particle materials in the slurry. Then the slurry drops onto the small crushing roller 8. Through the transmission of the sprocket 905 and the chain 906 and then through the meshing of the two small gears 904, the two small crushing rollers 8 rotate to perform secondary fine crushing on the slurry, so as to avoid the blockage of the underground hole by large particles in the slurry. Subsequently, the slurry enters the telescopic bellows 14 through the mortar pump 10 and is then injected into the underground hole through the grouting head 13, so as to fill the underground hole. At the same time, start the air pump 17 to make the air pipe 16 blow air, which can accelerate the descent of the slurry. At the same time, start the exhaust fan 23 to make the air extraction pipe 21 generate negative pressure for suction, further accelerating the downward flow of the slurry. By observing the transparent box 20, when the slurry is sucked into the transparent box 20 through the air extraction pipe 21, the grouting can be stopped. The filter screen 26 can prevent the slurry from entering the exhaust fan 23 and avoid damaging the exhaust fan 23. When it is necessary to clean the inner wall of the transparent box 20, two bolts 273 can be pressed to make the bolts 273 leave the socket blocks 275, and then the box door 24 can be rotated downward. After opening the transparent box 20, it is convenient for the staff to clean. The content not described in detail in this description belongs to the prior art well-known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fully automatic grouting machine for trenchless repair, comprising: A workbench (1), characterized in that: moving wheels (2) are provided at the four corners of the bottom of the workbench (1); a mixing drum (3) is provided on one side above the workbench (1); a mixing device (4) is provided in the mixing drum (3); the bottom of the mixing drum (3) is connected to a crushing box (6) through a feeding pipe (5); the crushing box (6) is fixed to the top of the workbench (1); two large crushing rollers (7) and two small crushing rollers (8) are rotatably installed above and below the inner wall of the crushing box (6); a driving component (9) is provided between the large crushing rollers (7) and the small crushing rollers (8); the bottom of the crushing box (6) is connected to a mortar pump (10); an electric cylinder (11) is installed at the bottom of the workbench (1); the output end of the electric cylinder (11) is connected to a lifting device A plate (12) is provided at the bottom of the lifting plate (12), a grouting head (13) is installed, the grouting head (13) and the mortar pump (10) are connected through a telescopic bellows (14), a gantry (18) is installed on one side of the top of the workbench (1), an electric push rod (19) is installed on the top of the gantry (18), the output end of the electric push rod (19) is connected to a transparent box (20), the bottom of the transparent box (20) is connected to an exhaust pipe (21) slidably installed with the workbench (1), the top of the transparent box (20) is provided with an exhaust fan (23), the bottom of one side of the transparent box (20) is hinged with a box door (24), a filter screen (26) is provided in the transparent box (20), and a limit assembly (27) is provided between the box door (24) and the transparent box (20).

2. A fully automatic grouting machine for non-excavation repair according to claim 1, characterized in that: A frame (901) is installed on the outer wall of the crushing box (6), and a driving motor (902) is installed on the frame (901). The output end of the driving motor (902) is connected to one side of a large crushing roller (7). A large gear (903) is installed on one side of the two large crushing rollers (7), and the two large gears (903) are meshed with each other. A small gear (904) is installed on one side of the two small crushing rollers (8), and the two small gears (904) are meshed with each other. A sprocket (905) is installed on one side of one small crushing roller (8) and one side of one large crushing roller (7), and the two sprockets (905) are driven by a chain (906).

3. A fully automatic grouting machine for non-excavation repair according to claim 1, characterized in that: The limiting assembly (27) comprises an L-shaped plate (271), the L-shaped plate (271) being fixedly mounted on the top of the box door (24), through holes (272) being provided at both ends of the L-shaped plate (271), latches (273) being slidably mounted in the through holes (272), the latches (273) being connected to the L-shaped plate (271) via springs (274), and an insert block (275) penetratingly connected to the latches (273) being mounted on the top of the transparent box (20) on a side close to the box door (24).

4. The fully automatic grouting machine for trenchless repair according to claim 1, characterized in that: An air ring (15) fixedly mounted on the lifting plate (12) is provided on the outer side of the telescopic bellows (14); a plurality of air pipes (16) are provided at the bottom of the air ring (15); and an air pump (17) connected to the air ring (15) is installed on the top of the lifting plate (12).

5. The fully automatic grouting machine for trenchless repair according to claim 1, characterized in that: The inner walls at both ends of the transparent box (20) are both installed with U-shaped plates (25), and the filter screen (26) is slidably installed between the two U-shaped plates (25).

6. The fully automatic grouting machine for trenchless repair according to claim 1, characterized in that: A sealing cover (22) is installed below the outer side wall of the air extraction pipe (21).

7. The fully automatic grouting machine for trenchless repair according to claim 1, characterized in that: A push rod (28) is installed on one side of the top of the workbench (1) close to the gantry (18), and a rubber sleeve is sleeved on the upper side of the outer wall of the push rod (28).

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