A grout pressure control system

Abstract

The application relates to a grouting pressure control system which comprises pressure control valves, grouting pipes fixedly connected to the two sides of the pressure control valves, a pressure sensor installed on one of the grouting pipes, a valve rod rotatably connected to the pressure control valve, a fixing frame fixedly connected to the top of the pressure control valve, and a fixing seat fixedly connected to the top of the fixing frame. When in use, the pressure sensor detects the slurry flow in the grouting pipe, the pressure control valve controls the flow according to the pressure detected by the pressure sensor, the output shaft of the motor drives the driving gear to rotate, the driven gear drives the valve rod to rotate, the opening size of the pressure control valve is adjusted to realize flow control, the grouting pressure is controlled, the response speed of the overall device is accelerated, the device automatically adapts to the annual change of the slurry and the difference in stratum slurry absorption rate, and the application has the effect of facilitating pressure control.

Description

Technical Field

[0001] This application relates to the field of grouting technology, and in particular to a grouting pressure control system. Background Technology

[0002] Grouting is the process of injecting certain solidifying materials, such as cement, lime, or other chemical materials, into the foundation soil and rock within a certain range to fill cracks and pores in the soil and rock, prevent foundation leakage, and improve the integrity, strength, and stiffness of the soil and rock. In water-retaining structures such as sluices, dams, and dikes, grouting is commonly used to construct foundation seepage barriers and is a major foundation treatment measure for hydraulic structures.

[0003] This application addresses and improves upon existing technologies. In existing technologies, grouting is widely used in civil engineering and cement component manufacturing to fill voids, reinforce strata, or seal structures. Traditional grouting processes rely on manual experience to adjust pump pressure, making them susceptible to factors such as grout viscosity and stratum permeability. In recent years, the demand for automated pressure control has increased significantly, but existing equipment mostly employs open-loop control or simple PID algorithms, which are insufficient to handle dynamic pressure fluctuations under complex geological conditions. Utility Model Content

[0004] To improve grouting pressure control, this application provides a grouting pressure control system.

[0005] This application provides a grouting pressure control system, employing the following technical solution: A grouting pressure control system includes a pressure control valve, with grouting pipes fixedly connected to both sides of the pressure control valve. A pressure sensor is installed on one of the grouting pipes. A valve stem is rotatably connected to the pressure control valve. A fixed frame is fixedly connected to the top of the pressure control valve, and a fixed seat is fixedly connected to the top of the fixed frame, with the fixed seat rotatably connected to the valve stem. A driven gear is fixedly sleeved on the outer wall of one end of the valve stem that extends into the fixed seat. A driving gear meshes with one side of the driven gear. Multiple equally spaced blocking blocks are slidably connected to the driving gear along its circumference. A cover plate is fixedly installed on the top of the fixed seat. The driving gear is sealed by the blocking blocks. When the teeth of the driven gear rotate to contact the blocking blocks, the teeth push the blocking blocks, causing the gear lubricating oil in the driving gear to be discharged, lubricating both the driving and driven gears, extending their service life, reducing friction and wear, and ensuring the normal operation of both gears.

[0006] In a preferred embodiment, the drive gear has a cavity, and multiple equidistant oil outlet grooves are formed on the drive gear and are connected to the cavity. An oil injection pipe is fixedly connected to the top of the drive gear, and a sealing cap is installed on the oil injection pipe. The gear lubricating oil stored in the cavity is discharged through the oil outlet grooves.

[0007] In a preferred embodiment, a movable rod is fixedly connected to one end of the plug extending into the cavity, and a fixed sleeve is slidably connected to the outer wall of the movable rod, with the fixed sleeve fixedly connected to the inner wall of the cavity. The movement of the plug is guided by the movable rod and the fixed sleeve.

[0008] In a preferred embodiment, one end of the plug near the fixed sleeve is fixedly connected to a spring that is sleeved with the movable rod, and the other end of the spring is fixedly connected to the fixed sleeve. The spring causes the plug to reset and seal the oil outlet groove.

[0009] In a preferred embodiment, the top of the fixing base has a sealing groove, the bottom of the cover plate is fixedly connected to a positioning frame, and the bottom of the positioning frame is fixedly connected to a sealing gasket. The positioning frame is adapted to the sealing groove. The positioning frame and the sealing gasket facilitate a sealed connection.

[0010] In a preferred embodiment, fixing blocks are fixedly connected to both sides of the fixing base, and a mounting block abuts against the top of the fixing block. A fixing bolt is threaded onto the mounting block, and the fixing bolt is threadedly connected to the fixing block. The fixing bolt facilitates the connection between the fixing block and the mounting block.

[0011] In a preferred embodiment, a motor is fixedly connected to the top of the cover plate, and the output shaft of the motor is fixedly connected to the drive gear.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] 1. In this utility model, during use, the pressure sensor detects the flow rate of grout in the grouting pipe. Based on the pressure measured by the pressure sensor, the pressure control valve controls the flow rate. The output shaft of the motor rotates, driving the drive gear to rotate, which in turn drives the valve stem to rotate through the driven gear. Adjusting the opening size of the pressure control valve achieves flow control, thereby controlling the grouting pressure. This makes the overall device respond faster and automatically adapt to annual changes in grout and differences in grout absorption rate in the formation.

[0014] 2. In this utility model, during operation, the rotation of the driving gear drives the rotation of the driven gear. When the teeth of the driven gear come into contact with the block, the teeth cause the block to move and move into the cavity. The spring deforms, and at the same time, the gear lubricating oil in the cavity is discharged through the oil outlet groove to lubricate the driving gear and the driven gear, reduce gear friction and wear, improve control accuracy, and increase the service life of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2This is a schematic diagram of the fixing base structure of this application;

[0017] Figure 3 This is a schematic diagram of the driven gear structure of this application;

[0018] Figure 4 It is in this application Figure 1 Enlarged view of point A.

[0019] Explanation of reference numerals in the attached drawings: 1. Pressure control valve; 2. Grouting pipe; 3. Pressure sensor; 4. Fixing bracket; 5. Valve stem; 6. Fixing seat; 7. Cover plate; 8. Motor; 9. Sealing groove; 10. Sealing gasket; 11. Positioning frame; 12. Driven gear; 13. Driving gear; 14. Oil injection pipe; 15. Sealing cap; 16. Block; 17. Oil outlet groove; 18. Cavity; 19. Movable rod; 20. Fixing sleeve; 21. Spring; 22. Fixing block; 23. Mounting block; 24. Fixing bolt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0022] A grouting pressure control system includes a pressure control valve 1, with grouting pipes 2 fixedly connected to both sides of the pressure control valve 1. A pressure sensor 3 is installed on one of the grouting pipes 2. A valve stem 5 is rotatably connected to the pressure control valve 1. A fixing frame 4 is fixedly connected to the top of the pressure control valve 1, and a fixing seat 6 is fixedly connected to the top of the fixing frame 4. The fixing seat 6 is rotatably connected to the valve stem 5. A driven gear 12 is fixedly sleeved on the outer wall of one end of the valve stem 5 that extends into the fixing seat 6. A driving gear 13 meshes with one side of the driven gear 12. Multiple equally spaced blocking blocks 16 are slidably connected along the circumference of the 3. A cover plate 7 is fixedly installed on the top of the fixed base 6. The blocking blocks 16 seal the drive gear 13. When the teeth of the driven gear 12 rotate to contact the blocking block 16, the teeth push the blocking block 16, so that the gear lubricating oil in the drive gear 13 is discharged to lubricate the driven gear 12 and the drive gear 13, extend the service life of the driven gear 12 and the drive gear 13, reduce friction and wear, and ensure that the driven gear 12 and the drive gear 13 can operate normally.

[0023] The drive gear 13 has a cavity 18 inside, and multiple oil outlet grooves 17 are equally distributed on the drive gear 13. The oil outlet grooves 17 are connected to the cavity 18. An oil injection pipe 14 is fixedly connected to the top of the drive gear 13. A sealing cap 15 is installed on the oil injection pipe 14. The gear lubricating oil stored in the cavity 18 is discharged through the oil outlet grooves 17.

[0024] A movable rod 19 is fixedly connected to one end of the block 16 that extends into the cavity 18. A fixed sleeve 20 is slidably connected to the outer wall of the movable rod 19, and the fixed sleeve 20 is fixedly connected to the inner wall of the cavity 18. The movement of the block 16 is guided by the movable rod 19 and the fixed sleeve 20.

[0025] One end of the block 16 near the fixed sleeve 20 is fixedly connected to the spring 21 that is sleeved with the movable rod 19, and the other end of the spring 21 is fixedly connected to the fixed sleeve 20. The spring 21 causes the block 16 to reset and block the oil outlet groove 17.

[0026] The top of the fixed base 6 is provided with a sealing groove 9, and the bottom of the cover plate 7 is fixedly connected with a positioning frame 11. The bottom of the positioning frame 11 is fixedly connected with a sealing gasket 10. The positioning frame 11 is adapted to the sealing groove 9, and the positioning frame 11 and the sealing gasket 10 facilitate connection and sealing.

[0027] Fixing blocks 22 are fixedly connected to both sides of the fixing base 6. The top of the fixing block 22 abuts against the mounting block 23. The mounting block 23 is threaded with fixing bolts 24, and the fixing bolts 24 are threadedly connected to the fixing block 22. The fixing bolts 24 facilitate the connection between the fixing block 22 and the mounting block 23.

[0028] A motor 8 is fixedly connected to the top of the cover plate 7, and the output shaft of the motor 8 is fixedly connected to the drive gear 13.

[0029] Working principle:

[0030] In this application, during use, the pressure sensor 3 detects the pressure of the grout flow rate in the grouting pipe 2. Based on the pressure measured by the pressure sensor 3, the pressure control valve 1 controls the flow rate. The output shaft of the motor 8 rotates, driving the drive gear 13 to rotate, which in turn drives the valve stem 5 to rotate through the driven gear 12. This adjusts the opening size of the pressure control valve 1 to achieve flow control, thereby controlling the grouting pressure. This makes the overall device respond faster and automatically adapt to annual changes in grout and differences in formation grout absorption rate.

[0031] In actual use, the fixed frame 4 is equipped with a control panel. The control panel is electrically connected to the pressure sensor 3 and the motor 8, so that the real-time data of the pressure sensor 3 can be displayed through the control panel, thereby accurately controlling the operation of the motor 8. The control panel is not shown in the figure.

[0032] In this application, during operation, the drive gear 13 rotates, driving the driven gear 12 to rotate. When the driven gear 12 rotates, its teeth abut against the block 16, causing the block 16 to move and thus into the cavity 18. The spring 21 deforms, and at the same time, the gear lubricating oil in the cavity 18 is discharged through the oil outlet 17, lubricating the drive gear 13 and the driven gear 12, reducing gear friction and wear, improving control accuracy, and increasing the service life of the device.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grouting pressure control system, comprising a pressure control valve (1), characterized in that: Both sides of the pressure control valve (1) are fixedly connected to grouting pipes (2), and a pressure sensor (3) is installed on one of the grouting pipes (2). A valve stem (5) is rotatably connected to the pressure control valve (1). A fixed frame (4) is fixedly connected to the top of the pressure control valve (1). A fixed seat (6) is fixedly connected to the top of the fixed frame (4), and the fixed seat (6) is rotatably connected to the valve stem (5). A driven gear (12) is fixedly sleeved on the outer wall of one end of the valve stem (5) that extends into the fixed seat (6). A driving gear (13) meshes with one side of the driven gear (12). Multiple equally spaced plugs (16) are slidably connected on the driving gear (13) along its circumference. A cover plate (7) is fixedly installed on the top of the fixed seat (6).

2. The grouting pressure control system according to claim 1, characterized in that: The drive gear (13) has a cavity (18) inside, and multiple oil outlet grooves (17) are equally distributed on the drive gear (13), and the oil outlet grooves (17) are connected to the cavity (18). An oil injection pipe (14) is fixedly connected to the top of the drive gear (13), and a sealing cap (15) is installed on the oil injection pipe (14).

3. The grouting pressure control system according to claim 1, characterized in that: The end of the block (16) that extends into the cavity (18) is fixedly connected to a movable rod (19), and a fixed sleeve (20) is slidably connected to the outer wall of the movable rod (19), and the fixed sleeve (20) is fixedly connected to the inner wall of the cavity (18).

4. The grouting pressure control system according to claim 1, characterized in that: The end of the block (16) near the fixed sleeve (20) is fixedly connected to the spring (21) which is sleeved on the movable rod (19), and the other end of the spring (21) is fixedly connected to the fixed sleeve (20).

5. A grouting pressure control system according to claim 1, characterized in that: The top of the fixed base (6) is provided with a sealing groove (9), and the bottom of the cover plate (7) is fixedly connected with a positioning frame (11). The bottom of the positioning frame (11) is fixedly connected with a sealing gasket (10). The positioning frame (11) is adapted to the sealing groove (9).

6. A grouting pressure control system according to claim 1, characterized in that: The fixing base (6) is fixedly connected to both sides of the fixing block (22), and the top of the fixing block (22) abuts against the mounting block (23). The mounting block (23) is threaded with a fixing bolt (24), and the fixing bolt (24) is threadedly connected to the fixing block (22).

7. A grouting pressure control system according to claim 1, characterized in that: A motor (8) is fixedly connected to the top of the cover plate (7), and the output shaft of the motor (8) is fixedly connected to the drive gear (13).

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