Underground comprehensive pipe gallery concrete crack filling machine
By equipping the crack sealing machine with guide components and U-shaped scrapers, the problems of low construction efficiency and poor crack sealing quality in underground integrated pipe gallery construction have been solved, achieving efficient and accurate crack sealing construction results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN URBAN CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
Existing crack sealing machines suffer from low construction efficiency and poor crack sealing quality in underground utility tunnel construction, especially in poor visibility conditions where they are prone to misalignment, which increases the number of construction steps.
A crack filling machine including an electric crack filling machine, equipped with a guide and a U-shaped scraper, is designed. The guide ensures that the crack filling nozzle is aligned with the cut through a V-shaped plate and a flat plate structure. The U-shaped scraper is used to scrape off excess crack filling material. The operator sits in a chair to operate the machine, reducing manual pushing and hand-holding. The crack filling process is controlled by a remote control.
It improves construction efficiency, reduces the labor intensity of workers, ensures the accuracy and quality of crack filling, eliminates the need for the later leveling process, and achieves efficient and accurate crack filling construction.
Smart Images
Figure CN224548929U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of road construction, and in particular relates to a concrete grouting machine for underground integrated pipe corridors. Background Technology
[0002] During the construction of concrete pavement for underground utility tunnels, joint cutting is typically required after concrete pouring to ensure the smoothness and stability of the pavement. The main purpose of joint cutting is to prevent irregular cracks caused by internal stress in the concrete, which could affect the service life and safety of the utility tunnel pavement. After joint cutting, materials are needed to fill the cuts to provide good elasticity and waterproofing. These filling materials are generally chosen for their good adhesion, strong waterproofing and seepage prevention, good elasticity, and high temperature stability, such as SBS polymer-modified asphalt. On-site joint filling is usually done using a joint filling machine. Currently, operating these machines typically involves one worker pushing the machine while another holds the filling nozzle to fill the cuts. This results in a high workload and low efficiency. While some electric joint filling machines can move independently, they often misalign with the cuts, leading to poor filling quality, especially in environments like underground utility tunnels where visibility is poor. Sometimes, reflective marking tape is needed to mark the cut locations, increasing the construction steps and further reducing efficiency. Summary of the Invention
[0003] The problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a concrete grouting machine for underground integrated pipe corridors.
[0004] This invention is achieved through the following technical solution: A concrete grouting machine for underground utility tunnels includes an electric grouting machine. The electric grouting machine comprises a base plate and electric wheels. A material cylinder and a power supply box are mounted on the base plate. A pump pipe is connected outwards from the bottom of the material cylinder, and the pump pipe is connected to a grouting nozzle via a flexible hose. A push handle is located on the rear side of the base plate. Two parallel support rods are fixed outwards on the side of the base plate closest to the grouting nozzle. A small electric telescopic rod is mounted on the support rods and wirelessly connected to a remote control. The telescopic shaft of the electric telescopic rod is vertically fixed downwards to a support plate. A guide member is fixed downwards to the support plate via a connecting column. The guide member includes two symmetrical flat plates, the distance between which is equal to the cut width. A V-shaped plate is connected downwards between the two flat plates, the height of which is less than the cut depth. An arc-shaped plate is obliquely fixed downwards on the front side of the support plate, and the grouting nozzle is fixed to the arc-shaped plate. The bottom end of the discharge port at the front of the grouting nozzle is on the same horizontal line as the bottom end of the V-shaped plate. A U-shaped scraper is hinged forward at the front of the grouting nozzle, the width of which is greater than the cut width.
[0005] Preferably, the base plate is provided with a seat and a steering wheel, the steering wheel is used to control the direction of the electric crack filling machine, and both the seat and the steering wheel are located on the side of the crack filling gun head on the base plate.
[0006] Preferably, the connection between the flat plate and the V-shaped plate is curved.
[0007] Preferably, the pump pipe is equipped with a control valve, which is wirelessly connected to a remote control.
[0008] Preferably, the width of the U-shaped scraper is 3-5 cm larger than the kerf width.
[0009] Preferably, the U-shaped scraper is a steel block.
[0010] The crack-filling machine of this invention requires no worker to push it or hold the crack-filling nozzle. Workers can operate the machine while sitting on it, reducing labor intensity and improving construction efficiency. The invention includes a guide component for locating cracks. This guide component not only guides but also limits movement, preventing deviation. Positioning the guide component within the crack ensures the crack-filling nozzle's outlet is directly aligned with the crack, preventing misalignment. Workers observe the guide component's position to determine the crack-filling nozzle's location, ensuring accurate and high-quality crack filling. After crack filling, excess material is scraped and smoothed using a U-shaped scraper, eliminating the need for a subsequent smoothing process and completing the crack filling in one step, further improving construction efficiency. Attached Figure Description
[0011] Figure 1 This is a side view of the structure during construction in this embodiment; Figure 2 This is a schematic diagram of the structure in the construction state of this embodiment; Figure 3 This is a top view of the structure during construction in this embodiment; Figure 4 This is a schematic diagram of the electric crack sealing machine in this embodiment; Figure 5 This is a rear-view enlarged structural diagram of the guide component in this embodiment; Figure 6 This is a magnified front view of the guide component in this embodiment.
[0012] In the diagram, 1 is an electric crack filling machine, 2 is a base plate, 3 is an electric wheel, 4 is a material cylinder, 5 is a power box, 6 is a pump pipe, 7 is a hose, 8 is a crack filling gun head, 9 is a push handle, 10 is a support rod, 11 is an electric telescopic rod, 12 is a support plate, 13 is a connecting column, 14 is a guide, 15 is a flat plate, 16 is a V-shaped plate, 17 is an arc plate, 18 is a U-shaped scraper, 19 is a seat, 20 is a steering wheel, 21 is a control valve, and 22 is a cutter. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.
[0014] This embodiment includes an electric crack filling machine 1. Currently, there are various electric crack filling machines 1 on the market. These machines typically include a base plate 2 and electric wheels 3. The movement of the machine is controlled by the electric wheels 3. A push handle 9 is located on the rear side of the base plate 2, allowing manual pushing of the machine. A material cylinder 4 and a power supply box 5 are mounted on the base plate 2. The material cylinder 4 contains crack filling material, and a pump pipe 6 is connected to the bottom of the cylinder. The pump pipe 6 is connected to a crack filling nozzle 8 via a flexible hose 7, supplying crack filling material to the nozzle 8. The nozzle 8 is aligned with the cut seam 22 for crack filling. A control valve 21 is mounted on the pump pipe 6, wirelessly connected to a remote control. The remote control controls the start and stop of the crack filling material supply. The power supply box 5 on the base plate 2 provides power to the electric crack filling machine 1. The above describes the existing structure of the electric crack filling machine 1. The improvements of this embodiment over the existing electric crack filling machine 1 are detailed below.
[0015] In this embodiment, two parallel support rods 10 are fixed outward on the side of the base plate 2 near the grouting nozzle 8. A small electric telescopic rod 11 is installed on the support rods 10. The electric telescopic rod 11 is wirelessly connected to a remote control, which controls the up and down extension of the telescopic shaft of the electric telescopic rod 11. The telescopic shaft of the electric telescopic rod 11 is vertically fixedly connected to a horizontal support plate 12. The support plate 12 is fixedly connected downward to a guide member 14 via four connecting columns 13. The guide member 14 includes two symmetrical flat plates 15. The bottom ends of the four connecting columns 13 are fixedly connected to the upper surface of the flat plates 15 respectively. The distance between the two flat plates 15 is equal to the width of the cut 22. A V-shaped plate 16 is connected downward between the two flat plates 15. The height of the V-shaped plate 16 is less than the depth of the cut 22, and the V-shaped plate 16 can be placed inside the cut 22. Preferably, the connection between the flat plate 15 and the V-shaped plate 16 is curved, that is, the flat plate 15 and the V-shaped plate 16 are smoothly connected together to prevent the guide member 14 from being difficult to slide due to unevenness at the edge of the cut 22. An arc-shaped plate 17 is fixed obliquely downward on the front side of the support plate 12. The crack filling nozzle 8 is fixed on the arc-shaped plate 17, and the rear end of the crack filling nozzle 8 is connected to the pump pipe 6 through a hose 7. The bottom end of the front outlet of the crack filling nozzle 8 is on the same horizontal line as the bottom end of the V-shaped plate 16. That is, the front outlet of the crack filling nozzle 8 not only corresponds to the middle position of the V-shaped plate 16, but the bottom end of the outlet is also flush with the bottom end of the V-shaped plate 16. In this way, as long as the V-shaped plate 16 is located within the cut 22, it can be guaranteed that the crack filling nozzle 8 is always directly facing the cut 22, thus avoiding the problem of misalignment of the crack filling nozzle 8. A U-shaped scraper 18 is hinged forward at the front of the crack filling gun head 8. The U-shaped scraper 18 is rotatable and its width is greater than the width of the cut joint 22. Preferably, the width of the U-shaped scraper 18 is 3-5 cm wider than the width of the cut joint 22. The U-shaped scraper 18 is placed on the road surface on both sides of the cut joint 22. The U-shaped scraper 18 is used to scrape the excess crack filling material near the cut joint 22. The U-shaped scraper 18 should preferably be made of a heavier material so that it can scrape the crack filling material by its own weight. In this embodiment, the U-shaped scraper 18 is preferably made of steel block, which is heavy and has a good scraping effect.
[0016] In this embodiment, a seat 19 and a steering wheel 20 are also provided on the base plate 2. The seat 19 is located behind the steering wheel 20, which is connected to the rotation shaft of the electric grouting machine 1. The steering wheel 20 is used to control the travel direction of the electric grouting machine 1. In this embodiment, both the seat 19 and the steering wheel 20 are located on the side of the grouting gun head 8 on the base plate 2. This allows the worker sitting on the seat 19 to have a clearer view of the V-shaped plate 16 and to quickly and accurately locate the seams.
[0017] During construction, the worker sits in seat 19 and controls the direction of the electric crack-filling machine 1 using steering wheel 20. The machine is driven to one side of the cut 22, with the V-shaped plate 16 positioned above it. Then, the electric telescopic rod 11 is extended downwards via remote control. This telescopic rod 11 moves the V-shaped plate 16 and the crack-filling nozzle 8 downwards together. The worker observes whether the V-shaped plate 16 is directly above the cut 22. If not, the position of the electric crack-filling machine 1 is adjusted so that the V-shaped plate 16 is directly above the cut 22. This adjustment can also be done manually by pushing the handle 9. Once the V-shaped plate 16 is directly above the cut 22, the electric crack-filling machine 1 is activated via remote control. The telescopic shaft of the telescopic rod 11 continues to extend downwards, and the front ends of the V-shaped plate 16 and the crack filling gun head 8 both extend into the cut 22. When the flat plate 15 of the guide member 14 contacts the road surface on both sides of the cut 22, the electric telescopic rod 11 stops extending. The control valve 21 is opened by remote control, and the pump pipe 6 is controlled to deliver crack filling material to the hose 7 and the crack filling gun head 8 to start crack filling. At the same time, the worker controls the electric crack filling machine 1 to move backward slowly. The crack filling gun head 8 fills the cut 22. The U-shaped scraper 18 in front turns to a horizontal state due to its own weight and slides along both sides of the cut 22. The U-shaped scraper 18 scrapes and removes the excess crack filling material. The crack filling and scraping process is completed in one go. During the grouting process, the worker sitting on the seat 19 only needs to observe whether the V-shaped plate 16 of the guide 14 is within the cut 22. The V-shaped plate 16 of the guide 14 guides the grouting gun head 8. The guide 14 slides along the cut 22, and the entire guide 14 also has a limiting function, ensuring the accuracy of the grouting position.
[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can still be made to the technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A concrete grouting machine for underground utility tunnels, comprising an electric grouting machine (1), the electric grouting machine (1) comprising a base plate (2) and electric vehicle wheels (3), a material cylinder (4) and a power supply box (5) are provided on the base plate (2), a pump pipe (6) is connected to the bottom of the material cylinder (4) outward, the pump pipe (6) is connected to the grouting nozzle (8) through a hose (7), and a push handle (9) is provided on the rear side of the base plate (2), characterized in that: Two parallel support rods (10) are fixed outward on the side of the base plate (2) near the grouting gun head (8). A small electric telescopic rod (11) is installed on the support rods (10). The electric telescopic rod (11) is wirelessly connected to a remote control. The telescopic shaft of the electric telescopic rod (11) is vertically fixed to a support plate (12). The support plate (12) is fixed downward to a guide member (14) through a connecting column (13). The guide member (14) includes two symmetrical flat plates (15) on both sides. The space between the two flat plates (15) is... The spacing is equal to the width of the cut (22). A V-shaped plate (16) is connected downward between the two flat plates (15). The height of the V-shaped plate (16) is less than the depth of the cut (22). An arc plate (17) is fixed obliquely downward on the front side of the support plate (12). The filling gun head (8) is fixed on the arc plate (17). The bottom end of the discharge port at the front end of the filling gun head (8) is on the same horizontal line as the bottom end of the V-shaped plate (16). A U-shaped scraper (18) is hinged forward at the front of the filling gun head (8). The width of the U-shaped scraper (18) is greater than the width of the cut (22).
2. The underground integrated pipe gallery concrete grouting machine according to claim 1, characterized in that: The base plate (2) is provided with a seat (19) and a steering wheel (20). The steering wheel (20) is used to control the direction of the electric grouting machine (1). The seat (19) and the steering wheel (20) are both located on the side of the grouting gun head (8) on the base plate (2).
3. The underground integrated pipe gallery concrete grouting machine according to claim 1 or 2, characterized in that: The connection between the flat plate (15) and the V-shaped plate (16) is curved.
4. The underground integrated pipe gallery concrete grouting machine according to claim 1, characterized in that: The pump pipe (6) is equipped with a control valve (21), which is wirelessly connected to the remote control.
5. The underground integrated pipe gallery concrete grouting machine according to claim 1, characterized in that: The width of the U-shaped scraper (18) is 3-5 cm wider than the width of the cut (22).
6. The underground integrated pipe gallery concrete grouting machine according to claim 1, characterized in that: The U-shaped scraper (18) is a steel block.