Municipal road construction grouting device

By installing a cleaning system for nozzles and U-shaped pipes in the grouting device for municipal road construction, the problem of internal cleaning of the discharge pipe is solved, ensuring the cleanliness of the grouting pipe and improving grouting efficiency and the service life of the device.

CN224077938UActive Publication Date: 2026-04-03CHONGQING KAIQI CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing grouting equipment for municipal road construction fails to effectively clean the inside of the discharge pipe, resulting in the accumulation of debris in the grouting holes and affecting the normal use of the equipment.

Method used

A grouting device for municipal road construction was designed. By setting nozzles and U-shaped pipes at the discharge end of the grouting pump, the inside of the grouting pipe is cleaned by the gravity and jet function of the cleaning water. Combined with a water pump and hose system, the inner wall of the grout tank is cleaned to prevent the grout from solidifying.

Benefits of technology

It achieves effective cleaning of the inside of the grouting pipe, avoids the grout from drying and solidifying, and improves the grouting speed and the service life of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of municipal road construction, and discloses a municipal road construction grouting device which comprises a grouting device body, a water conveying pipe is installed at the bottom end of a containing table in a penetrating mode and communicated with the interior of a bottom water pipe, a U-shaped pipe is slidably installed at the lower end of the water conveying pipe, and a spray head is installed at the top end of one side of the U-shaped pipe. A conical pipe is installed on the outer side of the spray head, a movable ring is installed at the top end of the conical pipe and above the spray head, a connecting spring is installed on the outer side of the movable ring, an inner threaded pipe is installed at one end of the connecting spring, slurry in the slurry tank is discharged into the grouting hole through the grouting pipe, after grouting is completed, the grouting pump can be closed, and the spray head is located in the grouting pipe. And a water valve is opened, cleaning water in the cleaning tank flows downwards into the U-shaped pipe by means of the gravity of the cleaning water, the cleaning water is sprayed into the grouting pipe through a spray head, the interior of the grouting pipe is cleaned, and the situation that the grouting speed is affected due to the fact that the slurry is solidified in the grouting pipe after being dried is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of municipal road construction technology, specifically to a grouting device for municipal road construction. Background Technology

[0002] In the construction of municipal roads, grouting devices are commonly used. Grouting devices inject certain solidifiable grouts into the cracks or pores of the road using appropriate methods. Through replacement, filling, and compression, the physical and mechanical properties of the road are improved. Grouting technology can be divided into two main categories: static pressure grouting and high-pressure jet grouting. Based on the mechanism of action of the grout on the soil, geological conditions, grouting pressure, grout movement, and replacement methods, grouting technology can also be divided into four categories: permeation grouting, fracturing grouting, compaction grouting, and jet grouting.

[0003] For example, a grouting device for municipal road construction, disclosed in CN219059691U, includes a grout mixing device connected to the grouting device via a conveying pipe. The grouting device features a pipe-winding assembly, which is fixed by a limiting assembly. The pipe-winding assembly undergoes external wall cleaning with the assistance of a cleaning assembly. Wastewater generated during cleaning enters a filter assembly through a drain outlet on the lower side of a storage tank for filtration and recycling. A control device is installed on the grout mixing device to control the entire equipment. By incorporating a cleaning assembly, clean water from the water tank, aided by a pressurized pump on the water conveying pipe, is sprayed through nozzles and rinses the discharge pipe as the winding roller winds it, ensuring the discharge pipe's exterior is clean and preventing impurities and cement from solidifying on its surface, thus extending its service life and increasing its practicality.

[0004] The aforementioned patent proposes that the discharge pipe on the winding roller can be wound around the winding roller. When the discharge pipe moves, it is protected on the surface with the assistance of the rotating roller in the feed port. However, in actual use, the inside of the discharge pipe is not cleaned, resulting in debris in the grouting hole. This debris is not cleaned in time, which affects the grouting and the normal use of the device. Utility Model Content

[0005] The purpose of this invention is to provide a grouting device for municipal road construction to solve the problem mentioned in the background art of not cleaning the inside of the discharge pipe.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grouting device for municipal road construction, comprising a grouting device, wherein the grouting device includes a placement platform and casters installed at the four corners of the bottom of the placement platform, a high support and a low support are respectively installed on both sides of the top of the placement platform, a cleaning tank is installed on the top of the high support, a slurry tank is installed on the top of the low support, a protective cover is installed on the top of the slurry tank, a conveying pipe is installed through the bottom of the slurry tank, a grouting pump is installed on the top of the placement platform and between the cleaning tank and the slurry tank, and the discharge end of the conveying pipe is flange-connected to the inlet end of the grouting pump;

[0007] A grouting pipe is installed at the discharge end of the grouting pump and at the bottom of the placement platform. A threaded groove B is opened on the outer surface of the lower end of the grouting pipe. A bottom water pipe is installed through the bottom of the cleaning tank. A water valve is installed in the middle of the bottom water pipe. A water supply pipe is installed through the bottom of the placement platform. The water supply pipe is connected to the bottom water pipe. A U-shaped pipe is slidably installed at the lower end of the water supply pipe. A nozzle is installed at the top of one side of the U-shaped pipe. A tapered pipe is installed on the outside of the nozzle. A movable ring is installed at the top of the tapered pipe and above the nozzle. A connecting spring is installed on the outside of the movable ring. An internally threaded pipe is installed at one end of the connecting spring.

[0008] Preferably, a placement pipe is installed at the bottom of the placement platform and on one side of the water supply pipe, and a threaded groove A is formed on the outer surface of the placement pipe.

[0009] Preferably, the protective cover includes a lower connecting ring and an outer curved strip installed on the inner side above the lower connecting ring. The outer curved strip is provided in multiple sets, and a positioning circular plate is installed between the top ends of the multiple sets of outer curved strips. A breathable mesh is installed between the lower connecting ring, the positioning circular plate and the outer curved strip.

[0010] Preferably, a rubber ring is installed at the bottom end of the lower connecting ring, and a hollow inner connecting ring is installed inside the slurry tank.

[0011] Preferably, a water pump is installed at the bottom of the cleaning tank, a hose is installed at the outlet of the water pump, a water pipe is installed at one end of the hose, and a fixed pipe ring is installed at the top of the cleaning tank.

[0012] Preferably, a nozzle is installed through the bottom end of the hollow inner ring, with the nozzle orifice facing the inner wall of the slurry tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The present invention discloses a grouting device for municipal road construction. The grout inside the grout tank is discharged into the grouting hole through the grouting pipe. After grouting is completed, the grouting pump can be turned off, the nozzle is located inside the grouting pipe, the water valve is opened, and the cleaning water inside the cleaning tank flows down into the U-shaped pipe by its own gravity. The cleaning water is sprayed into the inside of the grouting pipe by the nozzle to clean the inside of the grouting pipe and prevent the grout from solidifying inside the grouting pipe after drying, which would affect the grouting speed.

[0015] 2. The present invention discloses a grouting device for municipal road construction. A water pump draws cleaning water from inside the cleaning tank and discharges it into the hollow inner ring through a hose and a water pipe. A spray pipe set at the bottom of the hollow inner ring sprays the cleaning water to clean the inner wall of the grout tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the cleaning tank and slurry tank of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the flip-up bottom end of the placement platform of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the protective cover of this utility model.

[0020] In the diagram: 1. Grouting device; 11. Placement platform; 111. Water supply pipe; 112. U-shaped pipe; 113. Nozzle; 114. Conical pipe; 115. Movable ring; 116. Internally threaded pipe; 117. Connecting spring; 118. Placement pipe; 119. Threaded groove A; 12. Caster wheel; 13. High support; 14. Cleaning tank; 141. Water pump; 142. Hose; 143. Fixed pipe ring ; 144. Water pipe; 145. Bottom water pipe; 146. Water valve; 15. Low support; 16. Material conveying pipe; 17. Grouting pump; 171. Grouting pipe; 172. Threaded groove B; 18. Grout tank; 181. Hollow inner connecting ring; 182. Spray pipe; 19. Protective cover; 191. Lower connecting ring; 192. Positioning round plate; 193. Outer bending strip; 194. Breathable mesh; 195. Rubber ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-4 A grouting device for municipal road construction includes a grouting device 1. The grouting device 1 includes a placement platform 11 and casters 12 installed at the four corners of the bottom of the placement platform 11. A high support 13 and a low support 15 are respectively installed on the top two sides of the top of the placement platform 11. A cleaning tank 14 is installed on the top of the high support 13, and a slurry tank 18 is installed on the top of the low support 15. A protective cover 19 is installed on the top of the slurry tank 18. A conveying pipe 16 is installed through the bottom of the slurry tank 18. A grouting pump 17 is installed on the top of the placement platform 11 and between the cleaning tank 14 and the slurry tank 18. The discharge end of the conveying pipe 16 is connected to the inlet end of the grouting pump 17 by a flange.

[0023] A grouting pipe 171 is installed at the discharge end of the grouting pump 17 and at the bottom end of the placement platform 11. A threaded groove B172 is opened on the outer surface of the lower end of the grouting pipe 171. A bottom water pipe 145 is installed through the bottom end of the cleaning tank 14. A water valve 146 is installed in the middle of the bottom water pipe 145. A water supply pipe 111 is installed through the bottom end of the placement platform 11. The water supply pipe 111 is connected to the interior of the bottom water pipe 145. A U-shaped pipe 112 is slidably installed at the lower end of the water supply pipe 111. A nozzle 113 is installed at the top of one side of the U-shaped tube 112. A tapered tube 114 is installed on the outside of the nozzle 113. A movable ring 115 is installed at the top of the tapered tube 114 and above the nozzle 113. A connecting spring 117 is installed on the outside of the movable ring 115. An internally threaded tube 116 is installed at one end of the connecting spring 117. The internally threaded tube 116 is located on the outside of the movable ring 115 and can be threaded to the outside of the grouting pipe 171.

[0024] A placement pipe 118 is installed at the bottom of the placement platform 11 and on one side of the water supply pipe 111. The outer surface of the placement pipe 118 is provided with a threaded groove A119. The distance between the placement pipe 118 and the water supply pipe 111 is the same as the distance between the grouting pipe 171 and the placement pipe 118. The internally threaded pipe 116 can be threaded to the outer surface of the placement pipe 118, so that the placement pipe 118 can protect the nozzle 113 nozzle orifice and prevent external substances from clogging the nozzle 113 when the grouting device 1 moves.

[0025] The protective cover 19 includes a lower connecting ring 191 and an outer curved strip 193 installed on the inner side of the lower connecting ring 191. Multiple sets of outer curved strips 193 are provided, and a positioning circular plate 192 is installed between the top ends of the multiple sets of outer curved strips 193. A breathable net 194 is installed between the lower connecting ring 191, the positioning circular plate 192 and the outer curved strips 193. The breathable net 194 is provided to facilitate the restraint of splashed slurry.

[0026] A rubber ring 195 is installed at the bottom of the lower connecting ring 191. A hollow inner connecting ring 181 is installed inside the slurry tank 18. The rubber ring 195 is located at the top of the hollow inner connecting ring 181. The lower connecting ring 191 is restricted to be placed inside the top of the slurry tank 18 by the weight of the protective cover 19 itself.

[0027] In this embodiment: the slurry is poured into the slurry tank 18, and the grouting device 1 is pushed to move it to the grouting location. The grouting pipe 171 is aligned with the grouting hole, and the grouting pump 17 operates. The slurry inside the slurry tank 18 is discharged into the grouting hole through the grouting pipe 171. Air bubbles in the slurry are discharged through the slurry tank 18 and the protective cover 19. The slurry generated by the bursting of air bubbles is constrained by the venting mesh 194 and the outer bending strip 193, preventing the slurry from splashing out of the slurry tank 18. After grouting is completed, the grouting pump 17 can be turned off. The internal threaded pipe 116 is threadedly connected to the opening with a threaded... After the water valve 146 is opened, the cleaning water inside the cleaning tank 14 flows down into the U-shaped tube 112 by gravity. The cleaning water is then sprayed into the grouting pipe 171 by the nozzle 113 to clean the inside of the grouting pipe 171 and prevent the grout from solidifying inside the grouting pipe 171 after drying, which would affect the grouting speed. When the cleaning water carries the grout down, the tapered tube 114 set on the outer surface of the nozzle 113 guides the grout and cleaning water to prevent the grout from clogging the nozzle 113 orifice.

[0028] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 2 and Figure 3 A water pump 141 is installed at the bottom of the cleaning tank 14. A hose 142 is installed at the outlet of the water pump 141. A water pipe 144 is installed at one end of the hose 142. A fixed pipe ring 143 is installed at the top of the cleaning tank 14. The fixed pipe ring 143 is used to fix the position of the hose 142 and the water pipe 144. The interior of the water pipe 144 is connected to the interior of the hollow inner ring 181.

[0029] A nozzle 182 is installed through the bottom end of the hollow inner ring 181. The nozzle of the nozzle 182 faces the inner wall of the slurry tank 18. The cleaning water inside the hollow inner ring 181 can be discharged through the nozzle 182 to clean the inside of the slurry tank 18.

[0030] In this embodiment: when cleaning the inside of the grouting pipe 171, the water pump 141 draws the cleaning water from the cleaning tank 14 and discharges it into the hollow inner ring 181 through the hose 142 and the water pipe 144. The spray pipe 182 set at the bottom of the hollow inner ring 181 sprays the cleaning water to clean the inner wall of the grout tank 18. The sprayed cleaning water is restricted by the grout tank 18 and splashes to clean the inside of the protective cover 19. The ventilated net 194 can restrain the splashed cleaning water and prevent the cleaning water from splashing out and contaminating the operators.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A municipal road construction grouting device comprising a grouting device (1), characterized in that: The grouting device (1) comprises a placing table (11) and universal wheels (12) installed at the bottom of the four corners of the placing table (11), high supports (13) and low supports (15) are respectively installed at the top of the two sides of the placing table (11), a cleaning tank (14) is installed at the top of the high support (13), a slurry tank (18) is installed at the top of the low support (15), a protective cover (19) is installed at the top of the slurry tank (18), a material conveying pipe (16) is installed through the bottom of the slurry tank (18), a grouting pump (17) is installed at the top of the placing table (11) and between the cleaning tank (14) and the slurry tank (18), and the discharge end of the material conveying pipe (16) is flange-connected with the feeding end of the grouting pump (17). The discharge end of the grouting pump (17) and the bottom end of the placing table (11) are provided with a grouting pipe (171), a threaded groove B (172) is formed in the outer surface of the lower end of the grouting pipe (171), a bottom water pipe (145) is installed through the bottom end of the cleaning tank (14), a water valve (146) is installed at the middle end of the bottom water pipe (145), a water conveying pipe (111) is installed through the bottom end of the placing table (11), the inside of the bottom water pipe (145) is communicated with the water conveying pipe (111), a U-shaped pipe (112) is slidingly installed at the lower end of the water conveying pipe (111), a spray head (113) is installed at one side of the top end of the U-shaped pipe (112), a conical pipe (114) is installed outside the spray head (113), a movable ring (115) is installed at the top end of the conical pipe (114) and above the spray head (113), a connecting spring (117) is installed outside the movable ring (115), and an internally-threaded pipe (116) is installed at one end of the connecting spring (117).

2. The municipal road construction grouting device according to claim 1, characterized in that: The bottom end of the placing table (11) and one side of the water conveying pipe (111) are provided with a placing pipe (118), and a threaded groove A (119) is formed in the outer surface of the placing pipe (118).

3. The municipal road construction grouting device according to claim 1, characterized in that: The protective cover (19) comprises a lower connecting ring (191), an outer bent strip (193) installed above the inner side of the lower connecting ring (191), a plurality of groups of the outer bent strips (193), a positioning circular plate (192) installed between the top ends of the plurality of groups of the outer bent strips (193), and an air-permeable mesh (194) installed between the lower connecting ring (191), the positioning circular plate (192) and the outer bent strips (193).

4. The municipal road construction grouting device according to claim 3, characterized in that: A rubber ring (195) is installed at the bottom end of the lower connecting ring (191), and a hollow inner connecting ring (181) is installed in the inside of the slurry tank (18).

5. The municipal road construction grouting device according to claim 1, characterized in that: An inner bottom end of the cleaning tank (14) is provided with a water pump (141), a hose (142) is installed at the water outlet end of the water pump (141), one end of the hose (142) is provided with a water conveying pipe (144), and a pipe fixing ring (143) is installed at the top end of the cleaning tank (14).

6. The municipal road construction grouting device according to claim 4, characterized in that: A spray pipe (182) is installed through the bottom end of the hollow inner connecting ring (181), and the spray hole of the spray pipe (182) faces the inner wall of the slurry tank (18).

Citation Information

Patent Citations

  • Grouting device for municipal road construction

    CN219059691U