A grouting pipe for road surface repair

Abstract

The present invention relates to the technical field of construction equipment, and in particular to a grouting pipe for road ground repair, which comprises a pipe body, an auxiliary grouting device is arranged on the top of the pipe body, a barb plate is arranged on the side end of the pipe body, the auxiliary grouting device comprises an auxiliary grouting pipe, and a connecting pipe is arranged on the side end of the auxiliary grouting pipe. Through components such as a pressure sensor, an external thread, a push plate, a first protrusion, a second protrusion, etc., the grouting degree in the pipe body can be detected with the assistance of the pressure sensor, so that the height of the external thread can be adjusted in time, and the residual cement mortar in the auxiliary grouting pipe can be drained by adjusting the height of the external thread. At the same time, when the cement mortar pressure in the pipe body increases, the push plate will move downward, so that the first protrusion and the second protrusion cooperate to form vibration, so that the cement mortar in the pipe body can be compacted with the assistance of the vibration, and the presence of bubbles can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building construction equipment, in particular to a grouting pipe used for road ground repair. Background Art

[0002] With the construction of land reclamation in coastal areas, a large amount of mud and sand on the seabed is blown to the land to form blown fill soil. This type of soil has the characteristics of high water content, low strength, and large later settlement. It is under-consolidated soil and has poor engineering properties. In such areas, engineering construction is usually carried out in pile foundations to reduce the settlement of the main building, while the consolidation settlement of the soil around the main building continues to develop. As a result, after a period of time after the construction of the building is completed, the soil around the building will be separated from the building itself, and even the foundation of the building will be exposed outdoors. The consequences are mild, causing cracks in outdoor roads and paved floors, destroying the beauty of the surrounding environment, and severe, affecting the driving and pedestrian safety of the roads around the building.

[0003] The new grouting pipe with Chinese patent application number 202311515370.4 includes a grouting main pipe made of resin material, the grouting main pipe includes an adjustable length section for connecting a grouting head and a connecting section for connecting a grouting secondary pipe, the adjustable length section is provided with a connecting internal thread, the grouting head is threadedly connected to the adjustable length section through a connecting external thread arranged at its port, but when the device is in use, if a cavity occurs inside, manual compaction is required.

[0004] A grouting pipe device with Chinese patent application number 202310338798.X includes a pipe body, including a casing, a bottom pipe arranged on one side of the casing, and a connecting pipe arranged on the side of the casing away from the bottom pipe; and a connecting assembly, which is arranged at both ends of the casing, including a second connecting component arranged on the side of the casing close to the bottom pipe, a first connecting component arranged on the side of the casing close to the connecting pipe, an anti-slip component arranged on the side of the first connecting component away from the bottom pipe, a stabilizing component arranged on the side of the second connecting component close to the connecting pipe, and an unlocking component arranged in the casing. However, during the use of the device, the holes on the casing are easily blocked by mortar, thereby affecting the grouting efficiency.

[0005] During the use of the equipment, the degree of grouting in the pipe body cannot be directly judged, which may easily lead to insufficient grouting of individual pipe bodies, resulting in poor effect of road ground repair. When the pipe body is inserted into the ground, the barb plate is easily squeezed back into the installation hole, thereby weakening its effect. At the same time, when grouting the pipe body, a cavity is easily formed in the pipe body, resulting in insufficient grouting in the pipe body, which makes the road ground repair effect worse. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a grouting pipe for road ground repair.

[0007] A grouting pipe for road ground repair of the present invention comprises a pipe body, an auxiliary grouting device is arranged on the top of the pipe body, and a barb plate is arranged on the side end of the pipe body;

[0008] The auxiliary grouting device includes an auxiliary grouting pipe, a connecting pipe is provided at the side end of the auxiliary grouting pipe, a hydraulic cylinder is provided at the side end of the auxiliary grouting pipe on the side away from the connecting pipe, a round rod is provided at the output end of the hydraulic cylinder, a mounting plate is provided at the end of the round rod, a motor is provided at the side end of the mounting plate, a driving rod is provided at the end of the motor, the driving rod passes through the auxiliary grouting pipe, an external thread is provided at the lower end of the driving rod, the external thread is located in the auxiliary grouting pipe, and a pressure sensor is provided at the lower end of the driving rod.

[0009] By arranging components such as a pressure sensor, an external thread, a push plate, a first protrusion and a second protrusion, the grouting degree in the pipe body can be detected with the assistance of the pressure sensor, so that the height of the external thread can be adjusted in time, and the residual cement mortar in the auxiliary grouting pipe can be drained by adjusting the height of the external thread. At the same time, when the pressure of the cement mortar in the pipe body increases, the push plate will move downward, so that the first protrusion and the second protrusion cooperate to form vibration, and the cement mortar in the pipe body can be compacted with the assistance of vibration to reduce the presence of bubbles, and the downward movement of the push plate will cause the barb plate to deviate, making the pipe body more stable, thereby improving the effect and convenience of equipment use.

[0010] Preferably, a mounting hole is provided on the outside of the pipe body, the lower end of the barb plate is connected and fixed to the bottom of the mounting hole, the barb plate is elastic, a limiting hole is provided on the top of the mounting hole of the pipe body, and a push plate is provided in the limiting hole for sliding up and down.

[0011] Preferably, a first protrusion is provided on the outer side of the push plate, a second protrusion is provided on the inner wall of the limiting hole, a piston plate is provided on the top of the push plate, the limiting hole is filled with water on the upper end of the piston plate, an elastic ball is provided on the inner side of the pipeline body at a position corresponding to the piston plate, and the elastic ball is connected to the limiting hole.

[0012] Preferably, the inner side of the lower end of the auxiliary grouting pipe is set to be conical, the lower side of the external thread at the lower end of the driving rod matches the lower end of the auxiliary grouting pipe, and a circular hole is set at the upper end of the auxiliary grouting pipe, the driving rod passes through the circular hole, and the external thread is located at the lower side of the circular hole.

[0013] Preferably, the auxiliary grouting pipe is provided with a stabilizing plate on one side close to the hydraulic cylinder, the round rod passes through the stabilizing plate, and a limiting rod is provided at the lower end of the mounting plate, and the limiting rod passes through the stabilizing plate.

[0014] Preferably, a connecting clamp is provided at the lower end of the auxiliary grouting pipe, the connecting clamp is L-shaped, a slot is provided at the upper end of the pipe body, the slot matches the connecting clamp, and the pipe body and the auxiliary grouting pipe are connected and fixed by the connecting clamp and the slot.

[0015] Preferably, there are multiple barbed plates on the outside of the pipe body, and the multiple barbed plates are evenly arranged. A discharge hole is also provided on the outside of the pipe body. The lower end of the pipe body is conical, and an opening is provided on the conical part of the lower end of the pipe body.

[0016] Preferably, a connecting head is provided on the connecting pipe, the external thread is fitted with the inner wall of the auxiliary grouting pipe, the diameter of the external thread is larger than the circular hole, and the pipe body is made of PVC material.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with components such as a hydraulic cylinder, a motor, an external thread and an auxiliary grouting pipe. The height of the external thread can be controlled with the assistance of the hydraulic cylinder, and the external thread can be rotated with the assistance of the motor. When the external thread is at different heights, the grouting pressure of the auxiliary grouting pipe is different. When the external thread drops to the lowest end, the external thread is completely fitted with the lower end of the auxiliary grouting pipe, which is conducive to completely discharging the residual cement mortar in the auxiliary grouting pipe.

[0019] 2. The present invention is provided with components such as a pressure sensor, a push plate, a first protrusion and a second protrusion. With the assistance of the pressure sensor, the grouting degree in the pipe body can be detected, so that the height of the external thread can be adjusted in time. When the cement mortar pressure in the pipe body increases, the push plate will move downward, so that the first protrusion and the second protrusion cooperate to form vibration. With the assistance of vibration, the cement mortar in the pipe body can be compacted to reduce the presence of bubbles.

[0020] 3. The present invention is provided with components such as a push plate, a first protrusion, a second protrusion and a barb plate. The vibration formed by the cooperation between the first protrusion and the second protrusion is also conducive to clearing the discharge holes and openings, ensuring that the cement mortar in the pipeline body can be smoothly discharged through the discharge holes and openings, and the downward movement of the push plate will cause the barb plate to shift, making the pipeline body more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 The present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 3 The present invention Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 4 It is a schematic diagram of the structure of the pipe body and barbed plate and other components of the present invention;

[0025] Figure 5 The present invention Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0026] Figure numerals: 1. pipeline body; 2. auxiliary grouting device; 3. barb plate; 4. mounting hole; 5. limiting hole; 6. push plate; 7. first protrusion; 8. piston plate; 9. elastic ball; 10. connecting clamp plate; 11. clamping groove; 12. discharge hole; 13. opening; 14. second protrusion; 201. auxiliary grouting pipe; 202. connecting pipe; 203. hydraulic cylinder; 204. round rod; 205. mounting plate; 206. motor; 207. driving rod; 208. external thread; 209. round hole; 210. stabilizing plate; 211. limiting rod; 212. connector. DETAILED DESCRIPTION

[0027] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] like Figures 1 to 4 As shown, a grouting pipe for road ground repair of the present invention comprises a pipe body 1, an auxiliary grouting device 2 is arranged on the top of the pipe body 1, and a barb plate 3 is arranged on the side end of the pipe body 1. When repairing the road ground, the ground is firstly punched, and then the pipe body 1 is inserted into the hole. After the pipe body 1 is inserted into the hole, the pipe body 1 is limited with the assistance of the barb plate 3, and then cement mortar is injected into the pipe body 1 with the assistance of the auxiliary grouting device 2. After the cement mortar in the pipe body 1 solidifies, the pipe body 1 and the solidified cement mortar will reinforce the ground in the form of piles to reduce the collapse of the road ground.

[0029] A mounting hole 4 is provided on the outside of the pipe body 1, and the lower end of the barb plate 3 is connected and fixed to the bottom of the mounting hole 4. The barb plate 3 is elastic. When the pipe body 1 is inserted into the hole on the ground, if there are hard stones underground, when the barb plate 3 passes through the hard stones, the barb plate 3 can be prevented from contacting the hard stones due to its elasticity, thereby preventing the barb plate 3 from colliding with the hard stones and being damaged, thereby improving the stability of the equipment.

[0030] There are multiple barbed plates 3 on the outside of the pipe body 1, and the multiple barbed plates 3 are evenly arranged. A discharge hole 12 is also provided on the outside of the pipe body 1. The lower end of the pipe body 1 is tapered, and an opening 13 is provided on the tapered part of the lower end of the pipe body 1. The lower end of the pipe body 1 is tapered, which makes the pipe body 1 smoother when entering the hole on the ground, making the use of the pipe body 1 more convenient. There are multiple barbed plates 3 on the outside of the pipe body 1. With the assistance of multiple barbed plates 3, the pipe body 1 is more stable after entering the hole on the ground, reducing the shaking of the pipe body 1 in the hole on the ground. The cement mortar injected into the pipe body 1 will be discharged through the discharge hole 12, thereby filling the underground cavity, so that after the cement mortar solidifies, the collapse of the ground is reduced, and the opening 13 at the lower end of the pipe body 1 is also for discharging cement mortar into the underground cavity for filling, making the underground more substantial and solidified.

[0031] The auxiliary grouting device 2 includes an auxiliary grouting pipe 201, a connecting pipe 202 is arranged at the side end of the auxiliary grouting pipe 201, a hydraulic cylinder 203 is arranged at the side end of the auxiliary grouting pipe 201 away from the connecting pipe 202, a round rod 204 is arranged at the output end of the hydraulic cylinder 203, a mounting plate 205 is arranged at the end of the round rod 204, a motor 206 is arranged at the side end of the mounting plate 205, a driving rod 207 is arranged at the end of the motor 206, the driving rod 207 passes through the auxiliary grouting pipe 201, and an external thread 208 is arranged at the lower end of the driving rod 207, and the external thread 208 is located in the auxiliary grouting pipe 201, and the slurry supply pipe is connected to the connecting pipe 202, and cement mortar is allowed to enter the auxiliary grouting pipe 201 through the connecting pipe 202 with the assistance of the slurry supply pipe. In the auxiliary grouting pipe 201, after the motor 206 is started, the output end of the motor 206 drives the rotation of the driving rod 207, and the rotation of the driving rod 207 drives the rotation of the external thread 208. When the external thread 208 rotates, the cement mortar in the auxiliary grouting pipe 201 is pressed into the pipe body 1. After starting the hydraulic cylinder 203, the output end of the hydraulic cylinder 203 drives the lifting of the round rod 204. When the round rod 204 is lifted and lowered, the external thread 208 is assisted by the mounting plate 205, the motor 206 and the driving rod 207 to move up and down. When the external thread 208 moves up and down, the misalignment of the external thread 208 and the connecting pipe 202 will change, thereby changing the thrust generated when the external thread 208 rotates.

[0032] A stabilizing plate 210 is provided on the side of the auxiliary grouting pipe 201 close to the hydraulic cylinder 203, and the round rod 204 passes through the stabilizing plate 210. A limiting rod 211 is provided at the lower end of the mounting plate 205, and the limiting rod 211 passes through the stabilizing plate 210. When the hydraulic cylinder 203 is started to lift the mounting plate 205, the round rod 204 is assisted in limiting by the stabilizing plate 210, and the limiting rod 211 also cooperates with the stabilizing plate 210, so that the mounting plate 205 is more stable when being lifted, reducing the vibration and movement deviation of the external thread 208 in the auxiliary grouting pipe 201, thereby improving the stability of the equipment.

[0033] A connecting card plate 10 is provided at the lower end of the auxiliary grouting pipe 201, and the connecting card plate 10 is L-shaped. A card slot 11 is provided at the upper end of the pipeline body 1, and the card slot 11 matches the connecting card plate 10. The pipeline body 1 and the auxiliary grouting pipe 201 are connected and fixed by the connecting card plate 10 and the card slot 11. When the pipeline body 1 and the auxiliary grouting device 2 are connected, the L-shaped connecting card plate 10 is inserted into the card slot 11, and then the auxiliary grouting pipe 201 is rotated to lock the connecting card plate 10 and the card slot 11, ensuring that the auxiliary grouting pipe 201 will not be separated from the pipeline body 1 during use of the equipment, thereby improving the stability of the equipment.

[0034] A connecting head 212 is provided on the connecting pipe 202, and the external thread 208 is in contact with the inner wall of the auxiliary grouting pipe 201. The diameter of the external thread 208 is larger than the circular hole 209. The pipe body 1 is made of PVC material. When the slurry supply pipe is connected to the connecting pipe 202, the connection between the slurry supply pipe and the connecting pipe 202 is more convenient with the assistance of the connecting head 212. The external thread 208 is in contact with the inner wall of the auxiliary grouting pipe 201, which is conducive to pressing all the mortar in the auxiliary grouting pipe 201 into the pipe body 1. The diameter of the external thread 208 is larger than the circular hole 209, which prevents the external thread 208 from detaching from the auxiliary grouting pipe 201 when it is raised or lowered, thereby improving the stability of the equipment.

[0035] During use of the present invention, a ground hole is drilled on a road section where the road surface is being repaired. After the drilling is completed, the pipe body 1 is inserted into the hole on the ground so that the top of the pipe body 1 is parallel to the ground.

[0036] After the pipe body 1 is placed, the pipe body 1 and the auxiliary grouting device 2 are connected, the L-shaped connecting clamp 10 is inserted into the clamping groove 11, and then the auxiliary grouting pipe 201 is rotated to lock the connecting clamp 10 and the clamping groove 11 to ensure that the auxiliary grouting pipe 201 and the pipe body 1 will not be separated during the use of the equipment. At the same time, the slurry supply pipe and the connecting pipe 202 are connected and fixed with the assistance of the connecting head 212.

[0037] After the equipment is connected, the slurry supply pipe will deliver the mixed cement mortar into the connecting pipe 202 under the action of the external device, and the hydraulic cylinder 203 and the motor 206 will be started at the same time. After the motor 206 is started, the external thread 208 will rotate. After the hydraulic cylinder 203 is started, the motor 206 will move downward, thereby causing the external thread 208 to move downward. When the external thread 208 moves downward, the external thread 208 will enter the connection between the connecting pipe 202 and the auxiliary grouting pipe 201, so that the rotation of the external thread 208 will transport the mortar sprayed from the connecting pipe 202 downward, and the mortar transported downward by the external thread 208 will enter the pipeline body 1.

[0038] The cement mortar that enters the pipe body 1 will be discharged from the discharge hole 12 and the opening 13, and the cement mortar discharged from the discharge hole 12 and the opening 13 will fill the underground voids. After the underground voids are filled, the motor 206 stops running, and the hydraulic cylinder 203 returns to its original state, and then the auxiliary grouting pipe 201 is reversed to separate the auxiliary grouting pipe 201 from the pipe body 1, and then the auxiliary grouting pipe 201 is connected to the next pipe body 1 for grouting.

[0039] During the use of the equipment, the degree of grouting in the pipe body 1 cannot be directly judged, which may easily lead to insufficient grouting of individual pipe bodies 1, resulting in poor effect of road ground repair. When the pipe body 1 is inserted into the ground, the barb plate 3 is easily squeezed back into the mounting hole 4, thereby weakening its effect. At the same time, when grouting the pipe body 1, a cavity is easily formed in the pipe body 1, so that the grouting in the pipe body 1 is not sufficient, which makes the road ground repair effect poor. Therefore, the following solutions are proposed:

[0040] like Figures 1 to 5 As shown, a pressure sensor is provided at the lower end of the driving rod 207 , and the pressure sensor can detect the pressure of the cement mortar between the pipeline body 1 and the driving rod 207 during grouting, thereby indirectly judging the grouting degree in the pipeline body 1 .

[0041] The pipe body 1 is provided with a limiting hole 5 at the top of the mounting hole 4, a push plate 6 is provided in the limiting hole 5 for sliding up and down, a first protrusion 7 is provided on the outer side of the push plate 6, a second protrusion 14 is provided on the inner wall of the limiting hole 5, a piston plate 8 is provided on the top of the push plate 6, the limiting hole 5 is filled with water at the upper end of the piston plate 8, an elastic ball 9 is provided on the inner side of the pipe body 1 at a position corresponding to the piston plate 8, the elastic ball 9 is connected with the limiting hole 5, after the cement mortar in the pipe body 1 is filled, as the external thread 208 continues to rotate, the cement mortar is still continuously injected into the pipe body 1, thereby increasing the pressure of the cement mortar in the pipe body 1, and the pipe The cement mortar in the pipe body 1 will squeeze the elastic ball 9, and the water in the elastic ball 9 will be pressed into the limiting hole 5 at the upper end of the piston plate 8, so that the piston plate 8 moves downward, and the piston plate 8 will drive the push plate 6 to move downward. During the downward movement of the push plate 6, the first protrusion 7 and the second protrusion 14 cooperate with each other to form vibration, and with the assistance of the vibration, the cement mortar in the pipe body 1 will be compacted to ensure that the cement mortar in the pipe body 1 is filled without leaving any gaps, and as the push plate 6 continues to move downward, the push plate 6 will push the barb plate 3 to deflect the barb plate 3 outward to increase the stability of the pipe body 1.

[0042] The inner side of the lower end of the auxiliary grouting pipe 201 is set to be tapered, and the lower side of the external thread 208 at the lower end of the driving rod 207 matches the lower end of the auxiliary grouting pipe 201. A circular hole 209 is set at the upper end of the auxiliary grouting pipe 201, and the driving rod 207 passes through the circular hole 209. The external thread 208 is located on the lower side of the circular hole 209. After the grouting of the auxiliary grouting pipe 201 is completed, the external thread 208 continues to be lowered so that the external thread 208 fits with the tapered inner wall of the lower end of the auxiliary grouting pipe 201. At this time, with the rotation of the external thread 208, the residual cement mortar in the auxiliary grouting pipe 201 will be injected into the pipe body 1, reducing the residual cement mortar in the auxiliary grouting pipe 201.

[0043] During use of the present invention, with the operation of the motor 206 and the hydraulic cylinder 203, the external thread 208 moves downward to the connection between the connecting pipe 202 and the auxiliary grouting pipe 201. At this time, when the lower end of the external thread 208 is located in the middle of the connection between the connecting pipe 202 and the auxiliary grouting pipe 201, the external thread 208 no longer descends. With the rotation of the external thread 208 and the pressure in the connecting pipe 202, the cement mortar in the connecting pipe 202 will quickly enter the pipeline body 1 from the auxiliary grouting pipe 201 for grouting.

[0044] As the amount of cement mortar in the pipeline body 1 increases, the detection value of the pressure sensor will gradually increase. When the detection value of the pressure sensor increases to the first threshold value, it indicates that the cement mortar has filled the interior of the pipeline body 1. At this time, the equipment controls the hydraulic cylinder 203 to continue to start, so that the lower end of the external thread 208 moves to the lower end of the connection between the connecting pipe 202 and the auxiliary grouting pipe 201. At this time, the grouting pressure of the auxiliary grouting pipe 201 to the pipeline body 1 will be completely provided by the rotation of the external thread 208, thereby reducing the grouting speed and increasing the grouting pressure, so that the cement mortar in the pipeline body 1 can be discharged through the discharge hole 12 and the opening 13. The cement mortar discharged through the discharge hole 12 and the opening 13 will fill the underground voids, so that the positions where the underground voids originally existed are filled with cement mortar, and collapse is avoided after the cement mortar solidifies.

[0045] As the external thread 208 rotates, the cement mortar is continuously pressed into the pipe body 1. After the underground void is filled, the pressure of the cement mortar in the pipe body 1 will gradually increase, so the pressure detection value of the pressure sensor will increase to the second threshold value.

[0046] When the pressure detection value of the pressure sensor exceeds the second threshold value, it indicates that the underground void near the pipeline body 1 has been filled with cement mortar. At this time, the hydraulic cylinder 203 is started again to make the external thread 208 fit completely with the tapered part at the lower end of the auxiliary grouting pipe 201, and then the grouting pipe stops supplying cement mortar. At this time, as the external thread 208 rotates, the residual cement mortar in the auxiliary grouting pipe 201 is continuously injected into the pipeline body 1, so that the cement mortar pressure in the pipeline body 1 continues to increase. In this process, the cement mortar in the pipeline body 1 will press the elastic ball 9 is squeezed, and the water in the elastic ball 9 will be pressed into the limiting hole 5 at the upper end of the piston plate 8, so that the piston plate 8 moves downward, and the piston plate 8 moves downward, which will drive the push plate 6 to move downward. During the downward movement of the push plate 6, the first protrusion 7 and the second protrusion 14 cooperate with each other to form vibration, and with the assistance of the vibration, the cement mortar in the pipeline body 1 will be compacted to ensure that the cement mortar in the pipeline body 1 is filled without leaving any gaps, and as the push plate 6 continues to move downward, the push plate 6 will push the barb plate 3 to deflect the barb plate 3 outward to increase the stability of the pipeline body 1.

[0047] The vibration formed by the cooperation between the first protrusion 7 and the second protrusion 14 is also conducive to clearing the discharge hole 12 and the opening 13, ensuring that the cement mortar in the pipeline body 1 can be smoothly discharged through the discharge hole 12 and the opening 13, thereby improving the effect of the use of the equipment.

[0048] During the process of the external thread 208 rising and falling in the auxiliary grouting pipe 201, the grouting pressure of the auxiliary grouting pipe 201 on the pipeline body 1 will change. The continuous change of the grouting pressure and the vibration formed by the cooperation between the first protrusion 7 and the second protrusion 14 are beneficial to the discharge of cement mortar from the discharge hole 12 and the opening 13, so that the gap near the pipeline body 1 can be filled, and it is also beneficial to clean the discharge hole 12 and the opening 13.

[0049] The main functions achieved by the present invention are: by setting components such as a pressure sensor, an external thread 208, a push plate 6, a first protrusion 7 and a second protrusion 14, the grouting degree in the pipe body 1 can be detected with the assistance of the pressure sensor, so that the height of the external thread 208 can be adjusted in time, and the residual cement mortar in the auxiliary grouting pipe 201 can be drained by adjusting the height of the external thread 208. At the same time, when the pressure of the cement mortar in the pipe body 1 increases, the push plate 6 will move downward, so that the first protrusion 7 and the second protrusion 14 cooperate to form vibration, and with the assistance of vibration, the cement mortar in the pipe body 1 can be compacted to reduce the presence of bubbles, and the downward movement of the push plate 6 will cause the barb plate 3 to deviate, making the pipe body 1 more stable, thereby improving the effect and convenience of equipment use.

[0050] The present invention also provides a method for using a grouting pipe for road surface repair, comprising the following steps:

[0051] Step 1: Drill a hole in the ground on the section of road where the ground is to be repaired. After the drilling is completed, insert the pipe body 1 into the hole in the ground so that the top of the pipe body 1 is parallel to the ground.

[0052] Step 2: After the pipe body 1 is placed, connect the pipe body 1 and the auxiliary grouting device 2, insert the L-shaped connecting clamp 10 into the clamping groove 11, and then rotate the auxiliary grouting pipe 201 to lock the connecting clamp 10 and the clamping groove 11 to ensure that the auxiliary grouting pipe 201 will not be separated from the pipe body 1 during the use of the equipment. At the same time, the slurry supply pipe and the connecting pipe 202 are connected and fixed with the assistance of the connecting head 212.

[0053] Step three, after the equipment connection is completed, under the action of the external device, the slurry supply pipe will send the mixed cement mortar into the connecting pipe 202, and start the hydraulic cylinder 203 and the motor 206 at the same time. After the motor 206 is started, the external thread 208 will rotate. After the hydraulic cylinder 203 is started, the motor 206 will move downward, thereby causing the external thread 208 to move downward. When the external thread 208 moves downward, the external thread 208 will enter the connection between the connecting pipe 202 and the auxiliary grouting pipe 201, so that the rotation of the external thread 208 will transport the mortar sprayed from the connecting pipe 202 downward, and the mortar transported downward by the external thread 208 will enter the pipeline body 1.

[0054] Step 4: The cement mortar that enters the pipe body 1 will be discharged from the discharge hole 12 and the opening 13, and the cement mortar discharged from the discharge hole 12 and the opening 13 will fill the underground voids. After the underground voids are filled, the motor 206 stops running, and the hydraulic cylinder 203 returns to its original state, and then the auxiliary grouting pipe 201 is reversed to separate the auxiliary grouting pipe 201 from the pipe body 1, and then the auxiliary grouting pipe 201 is connected to the next pipe body 1 for grouting.

[0055] The grouting pipe for road surface repair of the present invention has common mechanical installation, connection or setting methods, which can be implemented as long as they can achieve their beneficial effects.

[0056] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0057] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A grouting pipe for road surface repair, comprising a pipe body (1), characterized in that: An auxiliary grouting device (2) is provided on the top of the pipe body (1), and a barbed plate (3) is provided on the side end of the pipe body (1); The auxiliary grouting device (2) comprises an auxiliary grouting pipe (201), a connecting pipe (202) being provided at a side end of the auxiliary grouting pipe (201), a hydraulic cylinder (203) being provided at a side end of the auxiliary grouting pipe (201) away from the connecting pipe (202), a round rod (204) being provided at an output end of the hydraulic cylinder (203), a mounting plate (205) being provided at the end of the round rod (204), a motor (206) being provided at a side end of the mounting plate (205), a driving rod (207) being provided at the end of the motor (206), the driving rod (207) passing through the auxiliary grouting pipe (201), an external thread (208) being provided at the lower end of the driving rod (207), the external thread (208) being located in the auxiliary grouting pipe (201), and a pressure sensor being provided at the lower end of the driving rod (207).

2. The grouting pipe for road surface repair according to claim 1, characterized in that: The pipe body (1) is provided with a mounting hole (4) on the outside, the lower end of the barb plate (3) is connected and fixed to the bottom of the mounting hole (4), the barb plate (3) is elastic, and the pipe body (1) is provided with a limiting hole (5) at the top of the mounting hole (4), and a push plate (6) is provided in the limiting hole (5) to slide up and down.

3. The grouting pipe for road surface repair according to claim 2, characterized in that: The push plate (6) is provided with a first protrusion (7) on the outside, the limiting hole (5) is provided with a second protrusion (14) on the inner wall, the push plate (6) is provided with a piston plate (8) on the top, the limiting hole (5) is filled with water at the upper end of the piston plate (8), and an elastic ball (9) is provided on the inside of the pipeline body (1) at a position corresponding to the piston plate (8), and the elastic ball (9) is connected to the limiting hole (5).

4. The grouting pipe for road surface repair according to claim 1, characterized in that: The inner side of the lower end of the auxiliary grouting pipe (201) is configured to be conical, the lower side of the external thread (208) at the lower end of the driving rod (207) matches the lower end of the auxiliary grouting pipe (201), the upper end of the auxiliary grouting pipe (201) is provided with a circular hole (209), the driving rod (207) passes through the circular hole (209), and the external thread (208) is located at the lower side of the circular hole (209).

5. The grouting pipe for road surface repair according to claim 1, characterized in that: The auxiliary grouting pipe (201) is provided with a stabilizing plate (210) on one side close to the hydraulic cylinder (203), the round rod (204) passes through the stabilizing plate (210), and a limiting rod (211) is provided at the lower end of the mounting plate (205), and the limiting rod (211) passes through the stabilizing plate (210).

6. The grouting pipe for road surface repair according to claim 1, characterized in that: The lower end of the auxiliary grouting pipe (201) is provided with a connecting clamp (10), the connecting clamp (10) is L-shaped, the upper end of the pipe body (1) is provided with a clamping groove (11), the clamping groove (11) matches the connecting clamp (10), and the pipe body (1) and the auxiliary grouting pipe (201) are connected and fixed via the connecting clamp (10) and the clamping groove (11).

7. The grouting pipe for road surface repair according to claim 1, characterized in that: A plurality of barbed plates (3) are provided on the outside of the pipe body (1), and the plurality of barbed plates (3) are evenly arranged. A discharge hole (12) is also provided on the outside of the pipe body (1). The lower end of the pipe body (1) is tapered, and an opening (13) is provided on the tapered portion of the lower end of the pipe body (1).

8. The grouting pipe for road surface repair according to claim 4, characterized in that: The connecting pipe (202) is provided with a connecting head (212), the external thread (208) is fitted with the inner wall of the auxiliary grouting pipe (201), the diameter of the external thread (208) is larger than the circular hole (209), and the pipe body (1) is made of PVC material.

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