Integrated grouting pressure adjusting and flushing device

Abstract

The utility model relates to the technical field of rock stratum grouting, and discloses an integrated grouting pressure adjusting and flushing device which comprises a rack, the inner wall of the rack is fixedly connected with a pressure pump, the middle of the inner wall of the rack is fixedly connected with a pressure adjusting barrel, the inner wall of the pressure adjusting barrel is communicated with a main pipe, and the inner wall of the main pipe is communicated with a stop valve. The bottom of the inner wall of the pressure adjusting barrel communicates with an overflow valve, the top of the inner wall of the pressure adjusting barrel communicates with a pressure discharging pipe, the top end of the pressure discharging pipe is in threaded connection with a screw plug, a plurality of pressure relief holes are formed in the outer wall of the pressure discharging pipe, and the inner walls of the pressure relief holes are slidably connected with sealing blocks. The sides, away from each other, of the multiple sealing blocks are fixedly connected with spring columns. According to the grouting pressure adjusting device, slurry is guided into the pressure adjusting barrel from the main pipe, the sealing block is extruded by air in the pressure adjusting barrel to compress the spring column to retract into the hollow sleeve, the purpose of adjusting the grouting pressure is achieved, the grouting energy efficiency is improved, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of rock grouting technology, and in particular to an integrated grouting pressure regulating and flushing device. Background Technology

[0002] Grouting is an engineering technique and process used to reinforce soil, rock, and other geological structures. It can improve the bearing capacity and stability of the foundation, prevent foundation settlement, prevent groundwater or surface water from seeping into buildings or underground structures, reduce the expansibility of expansive soil, and improve its stability. Grouting materials are divided into two main categories: cement grout with good strength and durability, and chemical grouts suitable for special requirements. Grouting methods vary depending on the grouting materials and engineering needs. There is pressure grouting, which injects grout into a predetermined location using a pump and is suitable for grouting over a large area; gravity grouting, which injects grout into a predetermined location using gravity and is suitable for grouting over a small area; chemical grouting, which uses chemical grouts and is suitable for grouting under complex geological conditions and special requirements; and pre-stressing grouting, which is performed before soil or rock reinforcement to improve its initial strength.

[0003] A search revealed Chinese Patent Publication No. CN2021205295 (59.9), which discloses an integrated grouting device. The device includes a sealing cap at the inlet end of a cylindrical shell and a grout outlet hole at the outlet end, from which a grouting pipe extends. A partition plate is inserted into the cylindrical shell along its central axis, with one end abutting the sealing cap and the other end sealing the grout outlet hole. A stirring rod has an end cap with a replaceable sealing cap, and a motor is installed inside the end cap. The motor's output shaft extends along the central axis of the end cap, forming a rotating rod that laterally extends from stirring teeth. The length of the stirring teeth allows it to be within the inner diameter range of the cylindrical shell. A movable plug has a cover that can be fitted and fixed to the outside of the cylindrical shell. Inside the cover is a hydraulic propulsion device that can extend into the cylindrical shell, and at its end is a rubber plug matching the inner diameter of the cylindrical shell. This utility model can realize an integrated device for grouting material storage, transportation, mixing and grouting, with automated operation. It is simple and convenient, with high construction efficiency and is more portable. Although it can automate the mixing and grouting process, it cannot effectively adjust the grouting pressure, making it difficult to determine the grouting process parameters reasonably, resulting in reduced grouting efficiency and decreased practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an integrated grouting pressure regulating and flushing device, which aims to improve the problem that the existing integrated grouting device cannot effectively regulate the grouting pressure, making it difficult to reasonably determine the grouting process parameters, resulting in reduced grouting efficiency and decreased practicality.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an integrated grouting pressure regulating and flushing device, including a frame, a pressure pump fixedly connected to the inner wall of the frame, a pressure regulating tank fixedly connected to the middle of the inner wall of the frame, a main pipe connected to the inner wall of the pressure regulating tank, a shut-off valve connected to the inner wall of the main pipe, an overflow valve connected to the bottom of the inner wall of the pressure regulating tank, a pressure discharge pipe connected to the top of the inner wall of the pressure regulating tank, a screw plug threaded to the top of the pressure discharge pipe, multiple pressure relief holes opened on the outer wall of the pressure discharge pipe, a sealing block slidably connected to the inner wall of the pressure relief hole, a spring column fixedly connected to the opposite side of the multiple sealing blocks, a hollow sleeve fixedly connected to the opposite end of the multiple spring columns, and a cleaning mechanism connected to the front end of the main pipe, the cleaning mechanism being used to clean the grouting completed position.

[0006] The above technical solution utilizes the following: the main pipe serves as the primary channel for conveying grouting materials; the shut-off valve features rapid opening and closing and excellent sealing performance, effectively controlling the flow of grouting materials; the pressure regulating tank is a cylindrical pressure vessel; the pressurizing pump delivers grouting materials to subsequent pipelines at a stable flow rate and can flexibly adjust its output power according to actual grouting needs; and the cleaning mechanism allows for the initiation of the cleaning process simply by switching valves after grouting operations are completed, thoroughly removing residual grouting materials, effectively preventing pipeline blockage, and extending equipment lifespan.

[0007] As a further description of the above technical solution: the cleaning mechanism includes a three-way stopcock tube, the rear end of which is connected to the front end of the main pipe, the bottom end of which is connected to a connecting pipe, a fixing block is fixedly connected to the inner wall of the connecting pipe, a fixing rod is fixedly connected to the bottom of the fixing block, a limiting plate is fixedly connected to the bottom end of the fixing rod, a return spring is provided on the outer wall of the liquid pipe, a sealing plate is fixedly connected to the bottom end of the return spring, a liquid pipe is connected to the bottom end of the connecting pipe, a flushing pump is connected to the bottom end of the limiting plate, and a water tank is connected to the rear end of the flushing pump.

[0008] Through the above technical solution: the flushing pump is the power source of the cleaning mechanism, and the water tank can store a sufficient amount of cleaning fluid to provide continuous support for the cleaning operation. When the flushing pump is started, the cleaning fluid in the water tank is drawn out, pressurized by the flushing pump, and then transported to the front cleaning component through the liquid pipe to complete the cleaning work at the grouting completion position, thoroughly remove the residual grouting material, effectively prevent pipeline blockage, and extend the service life of the equipment.

[0009] As a further description of the above technical solution: a dust plug is threaded to the top of the water tank, and a rotating handle is fixedly connected to the top of the dust plug.

[0010] The above technical solution uses a rotating handle to help the user rotate the dust plug.

[0011] As a further description of the above technical solution: support pads are fixedly connected to the four corners at the bottom of the frame, and anti-slip sleeves are fixedly connected to the outer wall of the screw plug.

[0012] Through the above technical solution, the anti-slip sleeve can increase the friction of the outer wall of the screw plug.

[0013] As a further description of the above technical solution: a nameplate is fixedly connected to the front side of the pressurizing pump, and an observation window is fixedly connected to the outer wall of the pressure regulating tank.

[0014] Through the above technical solution: the nameplate is used to display relevant information about the pressure pump to the user.

[0015] As a further description of the above technical solution: an observation window two is fixedly connected to the front side of the water tank, and multiple scales are fixedly connected to the front side of the observation window two.

[0016] Through the above technical solution, observation window two can help users observe the liquid level in the water tank.

[0017] As a further description of the above technical solution: a handwheel is fixedly connected to the right end of the overflow valve, and the top of the pressure pump is connected to the inner wall of the pressure regulating tank.

[0018] Through the above technical solution: the handwheel is used to help the user adjust the preset pressure of the relief valve.

[0019] As a further description of the above technical solution: a controller is fixedly connected to the front side of the frame, and the controller is electrically connected to the flushing pump.

[0020] Through the above technical solution, the controller can help users control the start and stop of the entire device.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the grout is introduced from the main pipe into the pressure regulating tank, and then the main pipe and the pressure regulating tank are sealed by closing the shut-off valve. After adjusting the preset pressure at the overflow valve, the pressure pump is started to pressurize the pressure regulating tank. The air in the pressure regulating tank squeezes the sealing block to compress the spring column and retracts it into the hollow sleeve, thus dissipating the excess pressure. This achieves the purpose of adjusting the pressure during grouting, improving grouting efficiency and enhancing practicality.

[0023] 2. In this utility model, by rotating the three-way stopcock to close the top feed port, the connecting pipe and the main pipe are connected. After opening the shut-off valve, the pressure inside the pressure regulating tank squeezes the sealing plate, causing it to slide against the fixed rod. The liquid pipe limits and seals the limiting plate, preventing contamination of the cleaning fluid. After opening the screw plug to release the pressure inside the pressure regulating tank, the flushing pump is started to draw the liquid from the water tank into the main pipe. The liquid is then flushed through the spiral nozzle to form turbulent flow, achieving the purpose of switching to automatic cleaning, improving practicality, and accelerating maintenance efficiency. Attached Figure Description

[0024] Figure 1 This is a front perspective view of the integrated grouting pressure regulating and flushing device proposed in this utility model;

[0025] Figure 2 This is a side view of the integrated grouting pressure regulating and flushing device proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of the integrated grouting pressure regulating and flushing device proposed in this utility model;

[0027] Figure 4 This is a partial structural disassembly diagram of the fixing block of the integrated grouting pressure regulating and flushing device proposed in this utility model;

[0028] Figure 5 This is a partial structural disassembly diagram of the hollow sleeve of the integrated grouting pressure regulating and flushing device proposed in this utility model.

[0029] Legend:

[0030] 1. Frame; 2. Cleaning mechanism; 201. Flushing pump; 202. Connecting pipe; 203. Water tank; 204. Sealing plate; 205. Fixing block; 206. Return spring; 207. Fixing rod; 208. Limiting plate; 209. Liquid pipe; 210. Three-way stopcock; 3. Pressurizing pump; 4. Pressure regulating tank; 5. Overflow valve; 6. Main pipe; 7. Shut-off valve; 8. Screw plug; 9. Hollow sleeve; 10. Spring column; 11. Sealing block; 12. Pressure relief pipe; 13. Controller; 14. Observation window one; 15. Scale; 16. Observation window two; 17. Support; 18. Dust plug; 19. Rotating handle; 20. Handwheel; 21. Anti-slip sleeve; 22. Pressure relief hole; 23. Nameplate. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of an integrated grouting pressure regulating and flushing device, including a frame 1. A pressure pump 3 is fixedly connected to the inner wall of the frame 1. The frame 1 is the corresponding structure for installing the device. A pressure regulating tank 4 is fixedly connected to the middle of the inner wall of the frame 1. A main pipe 6 is connected to the inner wall of the pressure regulating tank 4. The pressure regulating tank 4 is used to store grout. A shut-off valve 7 is connected to the inner wall of the main pipe 6. An overflow valve 5 is connected to the bottom of the inner wall of the pressure regulating tank 4. The shut-off valve 7 can seal the main pipe 6. A pressure discharge pipe 12 is connected to the top of the inner wall of the pressure regulating tank 4. A screw is threaded to the top of the pressure discharge pipe 12. The plug 8 and the overflow valve 5 can adjust the pressure of the output slurry by adjusting the pressure required to pass through them. The outer wall of the pressure relief pipe 12 is provided with multiple pressure relief holes 22. The inner wall of the pressure relief hole 22 is slidably connected with a sealing block 11. The opposite side of the multiple sealing blocks 11 is fixedly connected with a spring column 10. The sealing block 11 is used to seal the pressure relief hole 22. The opposite end of the multiple spring columns 10 is fixedly connected with a hollow sleeve 9. The front end of the main pipe 6 is connected to a cleaning mechanism 2. The cleaning mechanism 2 is used to clean the position after grouting is completed. The spring column 10 can push the sealing block 11 to reset.

[0033] Specifically, frame 1 is a platform used to install and support the rest of the structure within the entire device. Overflow valve 5 is a key component for pressure regulation. When the device pressure exceeds the set value, overflow valve 5 automatically opens, returning excess grouting material to the storage tank, thereby ensuring that the system pressure remains stable within a safe range. Pressure relief pipe 12 is mainly used for emergency pressure relief when the device pressure is abnormal. Screw plug 8 plays a sealing role under normal working conditions to prevent gas leakage. Spring column 10 provides reset elasticity for sealing block 11. Hollow sleeve 9 plays a role in protecting spring column 10 and guiding its extension and contraction direction. When the device pressure rises sharply, the pressure pushes sealing block 11 to compress spring column 10, causing sealing block 11 to disengage from pressure relief hole 22, and gas is quickly discharged, achieving rapid pressure relief.

[0034] Please see the appendix Figure 2 - Appendix Figure 4The cleaning mechanism 2 includes a three-way stopcock tube 210, the rear end of which is connected to the front end of the main pipe 6. The bottom end of the three-way stopcock tube 210 is connected to a connecting pipe 202. The three-way stopcock tube 210 is a conduit capable of connecting and switching multiple pipes. A fixing block 205 is fixedly connected to the inner wall of the connecting pipe 202, and a fixing rod 207 is fixedly connected to the bottom of the fixing block 205. The connecting pipe 202 is used to connect the three-way stopcock tube 210 and its bottom. The fixing rod 207... The bottom end of the pipe 202 is fixedly connected to the limiting plate 208. The outer wall of the liquid pipe 209 is provided with a return spring 206. The bottom end of the return spring 206 is fixedly connected to the sealing plate 204. The return spring 206 is used to push the sealing plate 204 to reset. The bottom end of the connecting pipe 202 is connected to the liquid pipe 209. The bottom end of the limiting plate 208 is connected to the flushing pump 201. The rear end of the flushing pump 201 is connected to the water tank 203. The limiting plate 208 can limit the sliding position of the sealing plate 204.

[0035] Specifically, the three-way stopcock 210 has a flexible switching function. The diameter of the limiting disc 208 is larger than the inner diameter of the connecting pipe 202, playing a key limiting role. When the device switches to the cleaning state by rotating the three-way stopcock 210, the sealing disc 204 is squeezed downward under the pressure of the grouting material, stretching the return spring 206, so that the passage between the liquid pipe 209 and the connecting pipe 202 is temporarily closed to prevent the cleaning fluid from entering the grouting pipeline. As the pressure inside gradually decreases with time and the action of the pressure relief hole 22, the flushing pump 201 is started, which will enable it to lift the sealing disc 204, compress the return spring 206, and thus deliver the cleaning fluid.

[0036] Please see the appendix Figure 1 - Appendix Figure 3 The top of the water tank 203 is threaded with a dust plug 18, and the top of the dust plug 18 is fixedly connected with a rotating handle 19. The dust plug 18 can seal the liquid filling port of the water tank 203. The front side of the pressure pump 3 is fixedly connected with a nameplate 23. The outer wall of the pressure regulating tank 4 is fixedly connected with an observation window 14. The nameplate 23 is used to help users understand the relevant information of the structure. The bottom four corners of the frame 1 are fixedly connected with support pads 17. The outer wall of the screw plug 8 is fixedly connected with an anti-slip sleeve 21. The support pads 17 are used to support the frame 1 to prevent slippage.

[0037] Specifically, the anti-slip sleeve 21 increases the friction when the operator turns the screw plug 8, preventing slippage and effectively protecting the hands, thus improving the convenience and safety of operation. When it is necessary to add cleaning fluid or maintain the water tank 203, the operator only needs to hold the rotating handle 19 to turn the dust plug 18 to open it. The dust plug 18 can effectively prevent dust and debris from entering the water tank 203, ensuring the cleanliness of the cleaning fluid. The support pad 17 can not only play a role in vibration damping and buffering, reducing the vibration and noise generated during the operation of the device, but also effectively prevent the device from sliding on the ground, ensuring the stable operation of the device.

[0038] Please see the appendix Figure 3 - Appendix Figure 5 A second observation window 16 is fixedly connected to the front of the water tank 203. Multiple scales 15 are fixedly connected to the front of the second observation window 16. The second observation window 16 is used to help users observe the liquid level in the water tank 203. A controller 13 is fixedly connected to the front of the frame 1. The controller 13 is electrically connected to the flushing pump 201. A handwheel 20 is fixedly connected to the right end of the overflow valve 5. The top of the pressure pump 3 is connected to the inner wall of the pressure regulating tank 4. The controller 13 is used to help users control the start and stop of the device.

[0039] Specifically, the operator can monitor the remaining amount of cleaning fluid in the water tank 203 in real time through the observation window 26 and the scale 15, so as to replenish the cleaning fluid in time and ensure the continuity of the cleaning operation. The handwheel 20 allows the operator to manually fine-tune the opening pressure of the overflow valve 5 by rotating it. The controller 13 can control the start and stop of the entire device by controlling the start and stop of the electrical components in the entire device.

[0040] Working principle: When grouting, the grout first enters the pressure regulating tank 4 through the main pipe 6. Then, the valve core of the shut-off valve 7 is pushed to compress the spring to achieve a seal. Then, the pressure pump 3 is started to draw in the outside air to pressurize the pressure regulating tank 4. Then, the handwheel 20 is turned to adjust the preset pressure of the overflow valve 5 so that the grout can only flow out under the preset pressure. At the same time, when the pressure in the pressure regulating tank 4 is too high, the internal air is squeezed into the pressure relief pipe 12. Then, the sealing blocks 11 are squeezed to both sides, which in turn compresses the spring column 10 to open the pressure relief hole 22, so that the air in the pressure regulating tank 4 can be discharged outward through it, avoiding deformation of the pressure regulating tank 4 due to excessive pressure. At the same time, the pressure can be actively relieved by turning and pulling out the screw plug 8.

[0041] When cleaning is required, rotate the three-way stopcock 210 to close the slurry inlet at its top and connect the connecting pipe 202 and the main pipe 6. Then open the shut-off valve 7. If the pressure inside the pressure regulating tank 4 is high at this time, it will squeeze the sealing plate 204 to make it slide against the fixing rod 207 until it is limited by the liquid pipe 209 and stops. This prevents the slurry from contaminating the cleaning fluid through the connecting pipe 202 due to high pressure. After reducing the pressure inside the pressure regulating tank 4 by unscrewing the screw plug 8, start the flushing pump 201 to draw the liquid from the water tank 203 into the limiting plate 208. Then squeeze the sealing plate 204 to compress the return spring 206, leaving the inner wall of the limiting plate 208 and entering the connecting pipe 202. Then the liquid enters the pressure regulating tank 4 through the three-way stopcock 210 and then forms a turbulent flow to flush the pipe through the spiral nozzle.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated grouting pressure regulating and flushing device, comprising a frame (1), characterized in that: A pressure pump (3) is fixedly connected to the inner wall of the frame (1). A pressure regulating tank (4) is fixedly connected to the middle of the inner wall of the frame (1). A main pipe (6) is connected to the inner wall of the pressure regulating tank (4). A shut-off valve (7) is connected to the inner wall of the main pipe (6). An overflow valve (5) is connected to the bottom of the inner wall of the pressure regulating tank (4). A pressure discharge pipe (12) is connected to the top of the inner wall of the pressure regulating tank (4). A screw plug (8) is threaded to the top of the pressure discharge pipe (12). Multiple pressure relief holes (22) are opened on the outer wall of the pressure discharge pipe (12). A sealing block (11) is slidably connected to the inner wall of the pressure relief hole (22). A spring column (10) is fixedly connected to the opposite side of the multiple sealing blocks (11). A hollow sleeve (9) is fixedly connected to the opposite end of the multiple spring columns (10). A cleaning mechanism (2) is connected to the front end of the main pipe (6). The cleaning mechanism (2) is used to clean the position after grouting is completed.

2. The integrated grouting pressure regulating and flushing device according to claim 1, characterized in that: The cleaning mechanism (2) includes a three-way stopcock tube (210), the rear end of which is connected to the front end of the main tube (6), the bottom end of which is connected to a connecting pipe (202), a fixing block (205) is fixedly connected to the inner wall of the connecting pipe (202), a fixing rod (207) is fixedly connected to the bottom of the fixing block (205), a limiting plate (208) is fixedly connected to the bottom end of the fixing rod (207), a return spring (206) is provided on the outer wall of the liquid pipe (209), a sealing plate (204) is fixedly connected to the bottom end of the return spring (206), a liquid pipe (209) is connected to the bottom end of the connecting pipe (202), a flushing pump (201) is connected to the bottom end of the limiting plate (208), and a water tank (203) is connected to the rear end of the flushing pump (201).

3. The integrated grouting pressure regulating and flushing device according to claim 2, characterized in that: The top of the water tank (203) is threaded with a dust plug (18), and the top of the dust plug (18) is fixedly connected with a rotating handle (19).

4. The integrated grouting pressure regulating and flushing device according to claim 1, characterized in that: The frame (1) is fixedly connected to four corners at the bottom, and the screw plug (8) is fixedly connected to an anti-slip sleeve (21).

5. The integrated grouting pressure regulating and flushing device according to claim 1, characterized in that: A nameplate (23) is fixedly connected to the front side of the pressurizing pump (3), and an observation window (14) is fixedly connected to the outer wall of the pressure regulating tank (4).

6. The integrated grouting pressure regulating and flushing device according to claim 2, characterized in that: The water tank (203) is fixedly connected to the front side of the observation window (16), and the observation window (16) is fixedly connected to the front side of the scale (15).

7. The integrated grouting pressure regulating and flushing device according to claim 1, characterized in that: The right end of the overflow valve (5) is fixedly connected to a handwheel (20), and the top of the pressure pump (3) is connected to the inner wall of the pressure regulating tank (4).

8. The integrated grouting pressure regulating and flushing device according to claim 1, characterized in that: A controller (13) is fixedly connected to the front side of the frame (1), and the controller (13) is electrically connected to the flushing pump (201).

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