Automatic pile hole wall protection agent adding device

Abstract

The application relates to the technical field of bored pile construction, in particular to an automatic pile hole wall protective agent adding device, which comprises a mixing tank, a first flowmeter, a second flowmeter, a valve and a mounting pipe, water inlets and outlets are arranged at the two ends of the mounting pipe, the first flowmeter is arranged on the water inlet and is used for measuring the liquid flow passing through the automatic pile hole wall protective agent adding device; the second flowmeter is arranged at the bottom of the mixing tank and is used for measuring the liquid outflow of the mixing tank, the valve is arranged between the second flowmeter and the mixing tank and is used for mixing the protective agent and water into liquid protective agent in the mixing tank, the amount of the required liquid protective agent is calculated according to the data of the first flowmeter, the valve is opened, the second flowmeter is used for accurately measuring the liquid protective agent outflow of the mixing tank, and the valve is closed after the required amount is reached. The ratio of the protective agent and the liquid added into the mud each time can meet the preset requirement, and the accuracy of the protective agent adding is guaranteed.

Description

Technical Field

[0001] This application relates to the field of bored pile construction technology, and in particular to an automatic device for adding protective agent to pile borehole walls. Background Technology

[0002] Cast-in-place piles, based on different drilling techniques, are classified into dry-drilled piles, mud-wall-supported piles, casing-drilled piles, and expanded-hole piles. Mud-wall-supported piles utilize the ability of mud to form a thin, relatively stable mud cake that adheres to the borehole wall, thus maintaining its stability. The industry commonly employs the method of adding borehole wall protectants to enhance mud viscosity, thereby improving the mud's ability to balance pressure and protect the borehole wall.

[0003] Currently, the addition of protective agents is mainly divided into manual addition and semi-automatic addition. The manual addition method involves workers adding the protective agent into the pile hole manually based on their experience. This method is simple, efficient, and the most commonly used method. The semi-automatic addition method uses a simple mechanical device (such as a funnel) to pour the protective agent into the water injection pipeline. This method has better dust control and can effectively reduce pollution.

[0004] Although both methods involve adding a protective agent to the mud to enhance its performance, they both require manual operation by workers, resulting in low efficiency and susceptibility to subjective factors. This makes it difficult to precisely control the amount of protective agent added, thus affecting the mud's effectiveness. Summary of the Invention

[0005] To improve the accuracy of protective agent additive dosage and increase addition efficiency, this application provides an automatic addition device for pile hole wall protective agent.

[0006] This application provides an automatic addition device for pile hole wall protective agent, which adopts the following technical solution: An automatic dosing device for pile borehole wall protectant includes a mixing tank, a first flow meter, a second flow meter, a valve, and an installation pipe. The installation pipe is located at the bottom of the mixing tank and has an inlet end and an outlet end. The inlet end has an inlet connector, and the outlet end has an outlet connector. The first flow meter is mounted on the inlet connector and fixedly connected to it. The first flow meter is used to measure the flow rate of liquid flowing through the automatic dosing device for pile borehole wall protectant. The second flow meter is located at the bottom of the mixing tank and is used to measure the outflow of liquid from the mixing tank. The valve is located between the second flow meter and the mixing tank. The installation pipe is fixedly connected to the mixing tank through the second flow meter and the valve.

[0007] By adopting the above technical solution, after the external water source passes through the inlet connector, the first flow meter monitors the liquid flow rate entering the device in real time, while the second flow meter accurately measures the outflow of the liquid protective agent in the mixing tank, ensuring that the ratio of protective agent to liquid added to the slurry each time meets the preset requirements. The valve can flexibly adjust the outflow of liquid in the mixing tank according to actual needs, further ensuring the accuracy of protective agent addition.

[0008] Preferably, the automatic pile hole wall protectant addition device further includes a power unit; the power unit includes an impeller, an electric generator, and a storage battery; the impeller is disposed inside the mounting pipe, and a rotating shaft is disposed on the impeller, the rotating shaft passes through the wall of the mounting pipe, and a gear is disposed at the other end of the rotating shaft, which meshes with the electric generator; the storage battery is used to store the electrical energy generated by the electric generator and to power the automatic pile hole wall protectant addition device.

[0009] By adopting the above technical solution, the impeller drives the electric generator to generate electricity under the drive of water flow, and the battery stores the electrical energy. At the same time, the battery supplies power to the entire automatic pile hole wall protective agent addition device, realizing the energy self-sufficiency of the automatic pile hole wall protective agent addition device without the need for additional power supply.

[0010] Preferably, the automatic addition device for pile hole wall protective agent further includes a transmission box and a stirring unit; the transmission box is provided with an input end and an output end, the input end of which meshes with the electric generator through a gear to receive power; the stirring unit is disposed in the mixing tank and is connected to the output end of the transmission box, the output end of the transmission box drives the stirring unit to rotate and stir the liquid in the mixing tank.

[0011] By adopting the above technical solution, the rotation of the electric generator causes the input end of the transmission box to rotate, and the output end of the transmission box is connected to the stirring unit. Through the transmission box, the rotation of the electric generator drives the stirring unit to rotate.

[0012] Preferably, the stirring unit includes a stirring head and a stirring rod. The stirring head is suspended inside the mixing tank. One end of the stirring head is fixedly connected to the stirring rod, and the other end of the stirring rod is connected to the output end of the transmission box.

[0013] By adopting the above technical solution, the stirring head and stirring rod are connected, and the output end of the transmission box drives the stirring rod to rotate, stirring the liquid in the mixing tank to make the liquid concentration uniform.

[0014] Preferably, the automatic pile hole wall protective agent addition device further includes a controller for controlling the valve.

[0015] The above technical solution is generally adopted, and the controller controls the opening and closing of the valve based on the data from the first flow meter and the second flow meter, so as to realize the fully automated addition process and improve the addition efficiency and accuracy.

[0016] Preferably, the mixing tank is also equipped with a liquid level sensor.

[0017] By adopting the above technical solution, a liquid level sensor is installed in the mixing tank to monitor the remaining amount of protective agent in the mixing tank in real time, and to remind the operator to replenish the protective agent when it is insufficient.

[0018] Preferably, the water inlet connector is divided into a water source end and an installation end, and the diameter of the water source end is larger than the diameter of the installation end.

[0019] By adopting the above technical solution, the liquid flow rate in the installation pipe is increased, the speed of the impeller is improved, and the power generation of the electric generator is increased.

[0020] Preferably, both the inlet and outlet connectors are equipped with a detachable locking structure.

[0021] By adopting the above solution, the water inlet pipe is fixed to the water inlet connector and the water outlet connector using a locking structure, thus preventing the hose from falling off during use and affecting the construction progress.

[0022] In summary, the present invention has at least one of the following beneficial technical effects: 1. Two flow meters accurately measure the liquid flowing into the automatic dosing device for protective agent in pile hole walls and the liquid protective agent flowing out. By controlling the opening and closing of the valves, the accuracy of the amount of protective agent added is ensured. 2. The controller connects the flow meter and the valve, and can open and close the valve based on the flow meter data, reducing manual intervention, realizing automated addition of protective agent, and improving efficiency; 3. The impeller drives an electric generator to generate electricity and store it in a battery. The battery then supplies power to all electrical components in the device, making the entire device self-sufficient in energy and eliminating the need for an external power supply, thus making it more convenient to use. 4. The liquid level sensor in the mixing tank can monitor the remaining amount of protective agent in the mixing tank in real time. When the protective agent is insufficient, it will remind the operator to add protective agent, effectively avoiding construction interruption due to insufficient protective agent. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the automatic pile hole wall protective agent addition device in the embodiments of this application; Figure 2 This is a schematic diagram of the internal structure of the automatic additive device for pile hole wall protective agent; Figure 3 This is a schematic diagram showing the connection between the mixing tank and the installation pipe; The attached diagram is labeled as follows: 1. Outer casing; 101. Leg; 102. Opening; 103. Controller; 2. Mounting pipe; 201. Water inlet connector; 202. First flow meter; 203. Clip; 204. Water outlet connector; 3. Mixing tank; 301. Feed port; 302. Valve; 303. Second flow meter; 304. Liquid level sensor; 305. Feed pipe; 4. Stirring unit; 401. Stirring rod; 402. Stirring head; 403. First bevel gear; 5. Power unit; 501. Impeller; 502. Rotating shaft; 503. Second bevel gear; 504. Electric generator; 505. Third bevel gear; 506. Battery; 6. Transmission box; 601. Fourth bevel gear; 602. Fifth bevel gear; 603. First drive shaft; 604. Sixth bevel gear; 605. Second drive shaft; 606. Seventh bevel gear; 607. Fixing block. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0025] The applicant found that existing methods of adding protective agents all require manual operation, which involves a high degree of subjectivity and leads to a general inability to accurately control the amount of protective agent used. This results in inconsistent mud quality and affects the effectiveness of the mud.

[0026] To address the aforementioned issues, this application provides an automatic pile hole wall protectant addition device. By employing two flow meters to measure the amount of water flowing through the device and the amount of protectant added, the device controls the valve opening and closing to ensure the accuracy of the protectant addition amount.

[0027] This application discloses an automatic device for adding protective agent to pile borehole walls. (Refer to...) Figure 1-3 The automatic addition device for pile hole wall protective agent includes a housing 1, a support leg 101, an installation pipe 2, a mixing tank 3, a power unit 5, a transmission box 6, a stirring unit 4, and a controller 103. The support leg 101 is used to support the housing 1.

[0028] The mixing tank 3 is located inside the outer shell 1. The side wall of the mixing tank 3 is provided with a feeding port 301, which extends to the outer shell 1 and has an opening 102. When in use, the preservative and a small amount of water are added into the mixing tank 3 through the feeding port 301.

[0029] A stirring unit 4 is installed inside the mixing tank 3. The stirring unit 4 includes a stirring head 402 and a stirring rod 401. The stirring head 402 is located inside the mixing tank 3 and is suspended in the air. It is fixedly connected to one end of the stirring rod 401. The stirring rod 401 passes through the top of the mixing tank 3, and a first bevel gear 403 is provided at the other end of the stirring rod 401. The stirring unit 4 stirs the added protective agent and water to make a liquid protective agent, which is convenient for subsequent addition.

[0030] A feeding pipe 305 is installed at the bottom of the mixing tank 3. A valve 302 and a second flow meter 303 are installed on the feeding pipe 305. The valve 302 controls the outflow of the liquid preservative in the mixing tank 3, while the second flow meter 303 accurately measures the amount of liquid preservative flowing out, ensuring that the amount added each time meets the preset requirements. A liquid level sensor 304 is installed inside the mixing tank 3. The liquid level sensor 304 can monitor the liquid level in the mixing tank 3 in real time. When the liquid level is lower than the set value, it sends a signal to the controller 103 to promptly replenish the preservative or water, ensuring the normal operation of the device.

[0031] The installation pipe 2 penetrates the outer casing 1 and is fixedly connected to the mixing tank 3 via a valve 302 and a second flow meter 303. The installation pipe 2 has an inlet end and an outlet end. The inlet end is equipped with an inlet connector 201 for easy access to a water source via an external inlet pipe. The inlet connector 201 has a source end and an installation end. The source end connects to an external water source, and the installation end mates with the installation pipe 2. The diameter of the source end is larger than that of the installation end, increasing the liquid flow rate within the installation pipe 2. A first flow meter 202 is installed on the inlet connector 201 to measure the amount of liquid flowing through the automatic addition device for the pile hole wall protective agent. A detachable clip 203 is also provided on the inlet connector 201 to secure the external inlet pipe and the inlet connector 201, preventing the inlet pipe from detaching. The outlet end of the installation pipe 2 is equipped with an outlet connector 204, which has a detachable clip 203. The outlet pipe is connected to the outlet connector 204, and the two are fixedly connected by the clip 203. The outlet pipe is used to introduce water with added preservative into a designated location.

[0032] The power unit 5 includes an impeller 501, an electric generator 504, and a battery 506. The impeller 501 is installed inside the mounting pipe 2, adapted to the water flow direction within the pipe, and converts the kinetic energy of the water flow into mechanical energy. A shaft 502 is mounted on the impeller 501, penetrating the wall of the mounting pipe 2 and extending to the electric generator 504. A second bevel gear 503 is mounted at the other end of the shaft 502. The electric generator 504 is fixedly connected to the inner wall of the outer casing 1 and converts mechanical energy into electrical energy. A third bevel gear 505 is mounted at the drive end of the electric generator 504, meshing with the second bevel gear 503. The impeller 501 drives the electric generator 504 to generate electricity under the influence of the water flow. The battery 506 is installed inside the outer casing 1 and electrically connected to the electric generator 504 via wires. The battery 506 stores the electrical energy generated by the electric generator 504 and supplies power to the electrical components of the automatic pile hole wall protectant addition device. The entire power unit 5 first converts the kinetic energy of the water flow into mechanical energy through the impeller 501, and then converts the mechanical energy into electrical energy through the electric generator 504 and stores it in the battery 506.

[0033] The transmission box 6 is fixed to the inner wall of the outer casing 1. A fourth bevel gear 601 is installed at the input end of the transmission box 6, and a fifth bevel gear 602 is installed at the output end. The fourth bevel gear 601 is located outside the transmission box 6 and meshes with a third bevel gear 505 on the electric generator 504. The fifth bevel gear 602 is located outside the transmission box 6 and meshes with a first bevel gear 403 on the stirring rod 401, thus transmitting the rotation of the electric generator 504 to the stirring unit 4. A first drive shaft 603 is installed on the fourth bevel gear 601, extending into the transmission box 6. A sixth bevel gear 604 is installed at the other end of the first drive shaft 603. A second drive shaft 605 is installed on the fifth bevel gear 602, and a seventh bevel gear 606 is installed at the other end of the second drive shaft 605. The seventh bevel gear 606 meshes with the sixth bevel gear 604, transmitting the rotation of the transmission box 6 from the input end to the output end. A fixing block 607 is installed inside the transmission box 6, and the second transmission shaft 605 passes through the fixing block 607, making the operation of the transmission box 6 more stable. When there is water flowing in the installation pipe 2, the impeller 501 drives the electric generator 504 to rotate, which in turn drives the stirring unit 4 through the transmission box 6 to stir the liquid in the mixing tank 3. When there is no water flowing through the installation pipe 2, the battery 506 supplies power to the electric generator 504, driving the electric generator 504 to run, which in turn drives the stirring unit 4 through the transmission box 6 to stir the liquid in the mixing tank 3.

[0034] The controller 103, located on the housing 1, controls the battery 506 to power the electric generator 504 when there is no external water source in the mounting pipe 2. This powers the transmission box 6 and the stirring unit 4 to mix the protective agent in the mixing tank 3. After receiving data from the first flow meter 202, the controller 103 calculates the required amount of liquid protective agent, then opens the valve 302. It uses data from the second flow meter 303 to determine if the required amount of protective agent is met. If it is, it closes the valve 302, thus precisely controlling the amount of protective agent added. The controller 103 also receives signals from the level sensor 304. When the liquid protective agent level in the mixing tank 3 is below the standard, the controller 103 triggers an alarm, indicating that protective agent needs to be added to the mixing tank 3.

[0035] The implementation principle of the automatic pile hole wall protective agent addition device in this embodiment is as follows: Protective agent and water are added through the feeding port 301. The controller 103 controls the power supply to the electric generator 504. The electric generator 504 rotates and transmits kinetic energy to the stirring unit 4 through the transmission box 6. The stirring unit 4 mixes the protective agent and water in the mixing tank 3 to produce liquid protective agent. Then, water is introduced through the water inlet pipe. The controller 103 opens the valve 302 according to the value of the first flow meter 202 to add liquid protective agent. After determining that the rated quantity has been reached by the value of the second flow meter 303, the valve 302 is closed. At the same time, the water flow in the installation pipe 2 drives the impeller 501 to rotate. The impeller 501 drives the electric generator 504 to generate electricity. The electrical energy is stored in the storage battery 506. While the electric generator 504 is rotating, it drives the stirring unit 4 through the transmission box 6 to stir the liquid protective agent in the mixing tank 3.

[0036] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic device for adding protective agent to pile borehole walls, characterized in that: Includes a mixing tank (3), a first flow meter (202), a second flow meter (303), a valve (302), and an installation pipe (2); The installation pipe (2) is located at the bottom of the mixing tank (3). The installation pipe (2) is provided with an inlet end and an outlet end. The inlet end is provided with an inlet connector (201), and the outlet end is provided with an outlet connector (204). The first flow meter (202) is installed on the water inlet connector (201) and is fixedly connected to the water inlet connector (201). The first flow meter (202) is used to measure the flow rate of liquid flowing through the automatic addition device for the protective agent of the pile hole wall. The second flow meter (303) is installed at the bottom of the mixing tank (3) and is used to measure the amount of liquid flowing out of the mixing tank (3); the valve (302) is located between the second flow meter (303) and the mixing tank (3); The installation pipe (2) is fixedly connected to the mixing tank (3) via a second flow meter (303) and a valve (302).

2. The automatic pile hole wall protective agent adding device according to claim 1, characterized in that: It also includes a power unit (5); The power unit (5) includes a propeller (501), an electric generator (504), and a battery (506). The impeller (501) is installed inside the mounting tube (2), and a rotating shaft (502) is installed on the impeller (501). The rotating shaft (502) passes through the wall of the mounting tube (2), and a gear is installed at the other end of the rotating shaft (502). The gear meshes with the electric generator (504). The battery (506) is used to store the electrical energy generated by the electric generator (504) and to power the automatic addition device for the pile hole wall protective agent.

3. The automatic pile hole wall protective agent adding device according to claim 2, characterized in that: It also includes a transmission box (6) and a stirring unit (4); The transmission box (6) is provided with an input end and an output end. Its input end meshes with the electric generator (504) through a gear to receive power. The stirring unit (4) is installed inside the mixing tank (3) and is connected to the output end of the transmission box (6). The output end of the transmission box (6) drives the stirring unit (4) to rotate and stir the liquid in the mixing tank (3).

4. The automatic pile hole wall protective agent adding device according to claim 3, characterized in that: The stirring unit (4) includes a stirring head (402) and a stirring rod (401). The stirring head (402) is suspended inside the mixing tank (3). One end of the stirring head (402) is fixedly connected to the stirring rod (401), and the other end of the stirring rod (401) is connected to the output end of the transmission box (6).

5. The automatic pile hole wall protective agent adding device according to claim 1, characterized in that: It also includes a controller (103) for controlling the valve (302).

6. The automatic pile hole wall protective agent adding device according to claim 1, characterized in that: The mixing tank (3) is also equipped with a liquid level sensor (304).

7. The automatic pile hole wall protective agent adding device according to claim 1, characterized in that: The water inlet connector (201) is divided into a water source end and an installation end, and the diameter of the water source end is larger than the diameter of the installation end.

8. The automatic pile hole wall protective agent adding device according to claim 1, characterized in that: Both the inlet connector (201) and the outlet connector (204) are equipped with a detachable locking structure.

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