A grouting pump and a grouting system
By designing a pipe wall cleaning and lifting mechanism in the grouting pump, the problem of grout sticking to the inner wall of the pipe was solved, improving grouting efficiency and reducing equipment maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGXI PROVINCIAL EXPRESSWAY INVESTMENT GRP CO LTD
- Filing Date
- 2026-03-23
- Publication Date
- 2026-06-16
AI Technical Summary
When grouting pumps deliver high-viscosity grout, the grout tends to adhere to the inner wall of the pipe, forming a scale layer. This reduces the effective flow cross-sectional area of the pipe, increases the conveying resistance, reduces grouting efficiency, and increases equipment maintenance costs.
A grouting pump was designed, comprising a pipe wall cleaning mechanism and a lifting mechanism. The pipe wall cleaning mechanism scrapes away grout adhesion through the cooperation of an impeller, a cam, and an arc-shaped plate; the lifting mechanism adjusts the pump body height via an electric telescopic rod to prevent pipe bending and reduce flow resistance.
It effectively prevents grout from sticking to the inner wall of the pipe, improves grouting efficiency, reduces equipment maintenance needs, and lowers the operation cycle and cost.
Smart Images

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Abstract
Description
Technical Field
[0001] This invention relates to the field of grouting equipment technology, specifically to a grouting pump and grouting system. Background Technology
[0002] In the field of modern engineering construction and maintenance, grouting technology is a key means of reinforcement, seepage prevention and leakage plugging, and is widely used in many important scenarios such as mining, tunnel construction, building foundation treatment, water conservancy projects and geological disaster management.
[0003] During the operation of the grouting pump, when the equipment completes the grout delivery operation through the pipeline, the high viscosity and high solids content of the grout itself makes it prone to adhering to the inner wall of the pipeline during the delivery process. Initially, a small amount of grout adhesion may not significantly affect the delivery efficiency. However, as the operation time increases, the grout remaining on the pipe wall will gradually solidify and solidify under air contact and pressure, forming a scale layer that accumulates over time. This scaling phenomenon directly reduces the effective flow cross-sectional area of the pipeline, increases the resistance to grout delivery, not only disrupting the stability and smoothness of grout flow within the pipeline but also causing abnormal fluctuations in grouting pressure. Over the long term, the equipment needs to consume more power to overcome pipeline resistance, ultimately resulting in a decrease in grouting flow rate, an extended operation cycle, a significant reduction in the overall efficiency of grouting construction, and may even lead to pipeline blockages and other malfunctions, increasing equipment maintenance costs and operational safety risks. Summary of the Invention
[0004] The purpose of this invention is to provide a grouting pump to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention proposes a grouting pump, including a pump body, a grouting pipe fixedly connected to one side of the pump body, a pipe wall cleaning mechanism provided on one side of the grouting pipe, and a lifting mechanism provided at the bottom of the pump body; The pipe wall cleaning mechanism includes a branch pipe disposed on the outer wall of the grouting pipe. A first connecting rod is rotatably connected to the bottom of the inner wall of the branch pipe. An impeller is fixedly connected to the middle of the first connecting rod. Baffles are fixedly connected to both sides of the inner wall of the branch pipe. Cams are fixedly connected to both sides of the outer wall of the first connecting rod. A second connecting rod is inserted between every two opposing baffles. Springs are sleeved on the outer walls of the two second connecting rods. A first arc-shaped plate is fixedly connected to the top of the two second connecting rods. A support rod is fixedly connected to the top of the two first arc-shaped plates.
[0006] In one example, the inner wall of the branch pipe is provided with a plurality of second arc-shaped plates at equal intervals, and a connecting rod is fixedly connected between every two second arc-shaped plates, and two of the second arc-shaped plates are fixedly connected to the first arc-shaped plate through a support rod.
[0007] In one example, the bottom of each of the two second connecting rods is fixedly connected to a limiting plate, and the cam has a protrusion for pushing the limiting plate to move away from the first connecting rod.
[0008] In one example, the lifting mechanism includes a base plate located at the bottom of the pump body, with limit rods fixedly connected to the four corners of the bottom of the base plate, and limit grooves inserted through the outer wall of each limit rod.
[0009] In one example, a base is fixedly connected to the bottom of the limiting groove, and an electric telescopic rod is fixedly connected to the center of the top of the base, with the telescopic end of the electric telescopic rod fixedly connected to the top of the base plate.
[0010] In one example, a smart control panel is provided on one side of the base plate, and an electric telescopic rod switch is provided on the surface of the smart control panel. The electric telescopic rod is electrically connected to an external power source through the electric telescopic rod switch.
[0011] Compared with the prior art, the beneficial effects of the present invention are: A branch pipe is installed on one side of the grouting pipe, penetrating the grouting pipe. A first connecting rod is installed on the inner wall of the branch pipe, with an impeller in the middle. Cams are installed at both ends of the first connecting rod; the cams rotate along with the first connecting rod. Baffles are installed on both sides of the inner wall of the branch pipe, with a second connecting rod between every two baffles. Springs are fitted onto the outer walls of the two second connecting rods. A first arc-shaped plate is installed at the top of the second connecting rod, with a support rod fixedly connected to the top of the first arc-shaped plate. Multiple second arc-shaped plates are installed on the inner wall of the branch pipe. It is fitted to the inner wall of the branch pipe and connected to the first arc plate through a support rod. During use, when slurry passes through the branch pipe, the slurry will drive the impeller to rotate. The rotation of the impeller will drive the cam to rotate, and under the action of the cam, the first arc plate at the top will be lifted. Then, the second arc plate on the inner wall of the branch pipe will move up and down, thereby achieving the purpose of scraping the inner wall of the branch pipe. This can prevent slurry from sticking to the surface of the branch pipe, making it easier to clean later, and improving the working efficiency of the pump body in the grouting process.
[0012] The pump body has a base plate at its bottom, with limiting rods at each of the four corners. The outer wall of the limiting rods has a limiting groove, and the bottom of the limiting groove is connected to a base. An electric telescopic rod is fixedly connected to the center of the top of the base, and the telescopic end of the electric telescopic rod is fixedly connected to the center of the bottom of the base plate. This allows the pump body height to be adjusted during use to prevent the pipeline from bending due to excessive height difference with the grout tank, which would otherwise lead to excessive flow resistance during grouting. By controlling the pump body height in real time, the grouting efficiency can be improved. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the branch pipe of the present invention; Figure 3 This is a schematic diagram of the pipe wall cleaning mechanism of the present invention; Figure 4 This is a schematic diagram of the bottom component structure of the pipe wall cleaning mechanism of the present invention; Figure 5 This is a schematic diagram of the planar structure of the present invention; Figure 6 This is a schematic diagram of a first structure of the first connecting rod and cam in the grouting pump of the present invention; Figure 7 This is a schematic diagram of a second structure of the first connecting rod and the cam in the grouting pump of the present invention; Figure 8 This is a schematic diagram of the third structure of the first connecting rod and cam in the grouting pump of the present invention. Detailed Implementation
[0014] 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 only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0015] Please see Figure 1-5 The present invention provides a technical solution: a grouting pump, including a pump body 1, a grouting pipe 2 fixedly connected to one side of the pump body 1, a pipe wall cleaning mechanism 3 provided on one side of the grouting pipe 2, and a lifting mechanism 4 provided at the bottom of the pump body 1. The pipe wall cleaning mechanism 3 includes a branch pipe 301 located on the outer wall of the grouting pipe 2. A first connecting rod 302 is rotatably connected to the bottom of the inner wall of the branch pipe 301. An impeller 303 is fixedly connected to the middle of the first connecting rod 302. Baffles 305 are fixedly connected to both sides of the inner wall of the branch pipe 301. Cams 304 are fixedly connected to both sides of the outer wall of the first connecting rod 302. A second connecting rod 306 is inserted between every two opposing baffles 305. A spring 312 is sleeved on the outer wall of each of the two second connecting rods 306. A first arc plate 308 is fixedly connected to the top of each of the two second connecting rods 306. A support rod 309 is fixedly connected to the top of each of the two first arc plates 308.
[0016] The inner wall of the branch pipe 301 is provided with a plurality of second arc-shaped plates 311 at equal intervals. A connecting rod 310 is fixedly connected between every two second arc-shaped plates 311, and two of the second arc-shaped plates 311 are fixedly connected to the first arc-shaped plate 308 through a support rod 309. In use, a branch pipe 301 is installed on one side of the grouting pipe 2, and the branch pipe 301 penetrates the grouting pipe 2. A first connecting rod 302 is provided on the inner wall of the branch pipe 301. An impeller 303 is provided in the middle of the first connecting rod 302. Cams 304 are provided at both ends of the first connecting rod 302. During the rotation of the first connecting rod 302, the cams 304 will also rotate. Baffles 305 are provided on both sides of the inner wall of the branch pipe 301. A second connecting rod 306 is provided between every two baffles 305. Springs 312 are sleeved on the outer walls of the two second connecting rods 306. A first arc-shaped plate 308 is provided at the top of the second connecting rod 306. A support rod 309 is fixedly connected to the top of the first arc-shaped plate 308. Multiple The second arc-shaped plate 311 is attached to the inner wall of the branch pipe 301 and is connected to the first arc-shaped plate 308 through the support rod 309. During use, when slurry passes through the inside of the branch pipe 301, the slurry will drive the impeller 303 to rotate. The rotation of the impeller 303 will drive the cam 304 to rotate. Under the action of the cam 304, the first arc-shaped plate 308 located at the top will be lifted up, and then the second arc-shaped plate 311 on the inner wall of the branch pipe 301 will move up and down, thereby achieving the purpose of scraping the inner wall of the branch pipe 301. This can prevent slurry from sticking to the surface of the branch pipe 301, making it easier to clean later, and improving the working efficiency of the pump body 1 in the grouting process.
[0017] Furthermore, the bottom of each of the two second connecting rods 306 is fixedly connected with a limiting plate 307 for use in conjunction with the cam 304. The cam 304 has a protrusion 304-1 for pushing the limiting plate 307 to move away from the first connecting rod 302.
[0018] like Figures 6-8As shown, the cam 304 includes a first cam 3041 and a second cam 3042. Figure 6 In the first connecting rod 302, the first cam 3041 and the second cam 3042 rotate synchronously during rotation, thereby causing the first arc-shaped plates 308 on the two cams 304 to rise or fall synchronously. This structure is generally ineffective at scraping the inner wall of the branch pipe 301. To solve this technical problem, the positions of the first cam 3041 and the second cam 3042 are adjusted so that they rotate asynchronously with the first connecting rod 302. This causes the first arc-shaped plates 308 on the two cams 304 to rise or fall asynchronously.
[0019] Figure 7 The paper presents a structure that generates asynchronous rotation in order to achieve a better scraping effect, such as... Figure 8 As shown, the protrusions 304-1 of the first cam 3041 and the second cam 3042 point in opposite directions. Thus, when the end of the protrusion 304-1 of the first cam 3041 rotates to the highest point, the protrusion 304-1 of the second cam 3042 rotates to the lowest point.
[0020] Furthermore, the lifting mechanism 4 includes a base plate 401 located at the bottom of the pump body 1. Limiting rods 402 are fixedly connected to the four corners of the bottom of the base plate 401, and limiting grooves 403 are inserted through the outer wall of each limiting rod 402.
[0021] A base 405 is fixedly connected to the bottom of the limiting groove 403, and an electric telescopic rod 404 is fixedly connected to the center of the top of the base 405. The telescopic end of the electric telescopic rod 404 is fixedly connected to the top of the base plate 401.
[0022] In use, a base plate 401 is installed at the bottom of the pump body 1. Limiting rods 402 are provided at the four corners of the bottom of the base plate 401. The outer wall of the limiting rods 402 is provided with limiting grooves 403. The bottom of the limiting grooves 403 is connected to a base 405. An electric telescopic rod 404 is fixedly connected to the center of the top of the base 405. The telescopic end of the electric telescopic rod 404 is fixedly connected to the center of the bottom of the base plate 401. This allows the pump body 1 to be adjusted during use to prevent the pipe from bending due to excessive height difference with the grout tank during grouting, which would lead to excessive flow resistance during grouting. By controlling the height of the pump body 1 in real time, the grouting efficiency during the grouting process can be improved.
[0023] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so they are described more simply; relevant parts can be referred to the descriptions of the method embodiments. The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A grouting pump, comprising a pump body (1), wherein a grouting pipe (2) is fixedly connected to one side of the pump body (1), and a pipe wall cleaning mechanism (3) is provided on one side of the grouting pipe (2); characterized in that: The pipe wall cleaning mechanism (3) includes a branch pipe (301) disposed on the outer wall of the grouting pipe (2). A first connecting rod (302) is rotatably connected to the bottom of the inner wall of the branch pipe (301). An impeller (303) is fixedly connected to the middle of the first connecting rod (302). Baffles (305) are fixedly connected to both sides of the inner wall of the branch pipe (301). Cams (304) are fixedly connected to both sides of the outer wall of the first connecting rod (302). A second connecting rod (306) is inserted between each pair of opposite baffles (305). A spring (312) is sleeved on the outer wall of each of the two second connecting rods (306). A first arc plate (308) is fixedly connected to the top of each of the two second connecting rods (306). A support rod (309) is fixedly connected to the top of each of the two first arc plates (308).
2. A grouting pump according to claim 1, characterized in that: The inner wall of the branch pipe (301) is provided with a plurality of second arc plates (311) at equal intervals. A connecting rod (310) is fixedly connected between each pair of second arc plates (311), and two of the second arc plates (311) are fixedly connected to the first arc plate (308) through a support rod (309).
3. A grouting pump according to claim 1, characterized in that: The bottom of each of the two second connecting rods (306) is fixedly connected to a limiting plate (307) for use with the cam (304), and the cam (304) has a protrusion (304-1) for pushing the limiting plate (307) to move away from the first connecting rod (302).
4. A grouting pump according to claim 3, characterized in that: The cam (304) includes a first cam (3041) and a second cam (3042). When rotating, the first cam (3041) and the second cam (3042) are out of sync.
5. A grouting pump according to claim 4, characterized in that: When the end of the protrusion (304-1) of the first cam (3041) rotates to the highest point, the protrusion (304-1) of the second cam (3042) rotates to the lowest point.
6. A grouting pump according to claim 1, characterized in that: The pump body (1) is provided with a lifting mechanism (4) at the bottom.
7. A grouting pump according to claim 6, characterized in that: The lifting mechanism (4) includes a base plate (401) located at the bottom of the pump body (1). Limiting rods (402) are fixedly connected to the four corners of the bottom of the base plate (401), and a limiting groove (403) is inserted through the outer wall of each limiting rod (402).
8. A grouting pump according to claim 7, characterized in that: The bottom of the limiting groove (403) is fixedly connected to a base (405), and an electric telescopic rod (404) is fixedly connected to the center of the top of the base (405), and the telescopic end of the electric telescopic rod (404) is fixedly connected to the top of the base plate (401).
9. A grouting pump according to claim 8, characterized in that: The base plate (401) is provided with an intelligent control panel on one side. The surface of the intelligent control panel is provided with an electric telescopic rod switch. The electric telescopic rod (404) is electrically connected to an external power source through the electric telescopic rod switch.
10. A grouting system, characterized in that, Includes the grouting pump as described in any one of claims 1-9.