Mechanical hydraulic device for soil remediation

Abstract

The application relates to the technical field of mechanical hydraulic pressure, in particular to a mechanical hydraulic pressure device for soil remediation, which comprises a hydraulic oil tank, the top of the hydraulic oil tank is fixedly connected with a hydraulic pump device, the surface of the hydraulic pump device is electrically connected with a hydraulic control device, and the two ends of the hydraulic pump device are fixedly connected with filter devices fixedly connected to the top of the hydraulic oil tank; when the hydraulic oil opens the pressure relief mechanism, the trigger mechanism is triggered in time, the trigger mechanism warns the surrounding staff, meanwhile, the trigger mechanism feeds back to the adjusting mechanism, the adjusting mechanism timely switches the filter oil way, the staff timely replaces the blocked filter under the premise of not stopping, which not only guarantees the normal operation of the mechanical hydraulic pressure device for soil remediation, but also reduces the resistance of the hydraulic oil flow, so that the overall efficiency of the mechanical hydraulic pressure device for soil remediation is improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical hydraulic technology, and in particular to a mechanical hydraulic device for soil remediation. Background Technology

[0002] With the development of the industrial economy, soil pollution has become increasingly serious, especially the remediation of deep soil pollution, which is a crucial project in current soil remediation efforts. Common soil remediation methods often combine soil remediation agents with triple-tube high-pressure jet grouting piles. The remediation agent is injected into the soil layer and mixed with the soil mass through a high-pressure rotating nozzle. Among these, common in-situ triple jet grouting / injection integrated soil remediation equipment often uses jet grouting piles. A drilling rig is used to drill the jet grouting pipe and nozzle to the designed elevation at the bottom of the pile. Pre-prepared grout is injected with high-pressure energy by a high-pressure generator and then ejected at high speed from the nozzle beside the grouting pipe, forming a highly concentrated stream of grout that thoroughly mixes with the soil, forming a columnar solidified body of a certain diameter within the soil. This soil remediation equipment primarily reinforces the soil, improving its shear strength, enhancing the deformation performance of the foundation soil to prevent damage or excessive deformation under the load of the superstructure, and improving the hydraulic conditions and slope stability of the foundation soil. Currently, jet grouting piles are mostly composed of a power head system, a load-sensitive hydraulic control system, and a functional component load-bearing system.

[0003] A load-sensitive hydraulic control system consists of three main parts: a hydraulic oil tank, a hydraulic pump unit, and a hydraulic control unit. Currently, most manufacturers install filters on the return oil lines at the beginning and end of the hydraulic lines to remove contaminants from the hydraulic oil and reduce the pressure of the hydraulic transmission.

[0004] After a period of use, the filter element inside the filter tends to accumulate a lot of impurities on its surface. These impurities can hinder the normal flow of hydraulic oil. When the hydraulic system starts at low temperatures, or when the filter element is completely blocked by contaminants, or when there is a flow shock, a large pressure difference will be generated at both ends of the filter element, which will damage the structure of the filter element. The staff will have to replace the filter element. When the staff replaces the filter element, they need to cut off the oil circuit, which will undoubtedly hinder the normal operation of a mechanical hydraulic device used for soil remediation and affect its normal operation. Summary of the Invention

[0005] The purpose of this invention is to provide a mechanical hydraulic device for soil remediation in order to solve the above-mentioned problems, thereby improving the problem that the filter of an existing mechanical hydraulic device for soil remediation needs to be replaced after a period of use, which hinders the normal operation of the mechanical hydraulic device for soil remediation.

[0006] The present invention achieves the above-mentioned objective through the following technical solution: a mechanical hydraulic device for soil remediation, comprising a hydraulic oil tank, a hydraulic pump device fixedly connected to the top of the hydraulic oil tank, a hydraulic control device electrically connected to the surface of the hydraulic pump device, and a filter device fixedly connected to both ends of the hydraulic pump device and fixedly connected to the top of the hydraulic oil tank, wherein the end of the filter device away from the hydraulic pump device is connected to the top of the hydraulic oil tank.

[0007] Preferably, the aforementioned filtration device includes a first fluid guide pipe fixedly connected to and communicating with the top of the hydraulic oil tank. Two second fluid guide pipes, each communicating with the first fluid guide pipe, are fixedly connected to the end of the first fluid guide pipe away from the hydraulic oil tank. A filter communicating with the second fluid guide pipe is threadedly connected to the end of each second fluid guide pipe away from the first fluid guide pipe. A third fluid guide pipe communicating with the filter is threadedly connected to the end of the filter away from the second fluid guide pipe. A fourth fluid guide pipe communicating with the two third fluid guide pipes is fixedly connected between them. The end of the fourth fluid guide pipe away from the third fluid guide pipes is communicating with a hydraulic pump device. A pressure relief mechanism communicating with the second fluid guide pipe is fixedly connected to the upper surface of the second fluid guide pipe. The end of the pressure relief mechanism furthest from the second liquid guide pipe is connected to the filter. A triggering mechanism is installed between the pressure relief mechanism and the adjacent third liquid guide pipe. An adjusting mechanism is electrically connected between the two triggering mechanisms. By setting up a filter device, when the hydraulic oil pushes open the pressure relief mechanism, the triggering mechanism is triggered in time, alerting the surrounding personnel. At the same time, the triggering mechanism feeds back to the adjusting mechanism, causing the adjusting mechanism to switch the filter oil circuit in time. This allows the personnel to replace the blocked filter in time without stopping the machine. This not only ensures the normal operation of the entire mechanical hydraulic device for soil remediation, but also reduces the resistance of hydraulic oil flow, thereby improving the overall efficiency of the mechanical hydraulic device for soil remediation.

[0008] Preferably, the triggering mechanism includes two connecting pipes and a mounting bracket. The two connecting pipes are respectively fixedly connected to the upper surface of the third fluid guide pipe and the pressure relief mechanism. The bottoms of the two connecting pipes are respectively connected to the third fluid guide pipe and the pressure relief mechanism. A piston rod is slidably connected to the inner wall of each connecting pipe, and the top of the piston rod extends through to the outside of the connecting pipe. A pressure regulating mechanism threaded to the top of the connecting pipe is sleeved on the surface of the piston rod. The mounting bracket is fixedly connected to the top of the hydraulic oil tank. Two mounting cavities are opened inside the mounting bracket. A DC switch is fixedly connected to the inner top wall of each mounting cavity. An audible and visual alarm is electrically connected to the top of the DC switch and fixedly connected to the top of the mounting bracket. Both poles of the DC switch are electrically... The mounting cavity is connected to electrode plates, and a DC power supply is fixedly connected to the inner bottom wall of the mounting cavity. The DC power supply is located between two electrode plates, and guide rods are fixedly connected to the opposite ends of the two electrode plates. The opposite ends of the two guide rods extend to the outside of the mounting cavity. The end of the guide rod away from the DC power supply is located directly above the center point of the piston rod. By setting a trigger mechanism, the operator can estimate the pressure of the hydraulic oil in the pipeline by the real-time height of the piston rod, so that the operator can easily determine whether the filter needs to be replaced and maintained. When the pressure difference on both sides of the filter reaches a certain level, the trigger mechanism can also warn the surrounding operators to replace and maintain the filter in time, reducing the probability of damage to the internal components of the filter.

[0009] Preferably, the top vertical cross-section of the piston rod is arc-shaped, with the center of the piston rod facing away from the DC power supply, and the end of the guide rod away from the DC power supply is arc-shaped. This reduces the resistance of the piston rod pushing against the guide rod, ensuring that the triggering mechanism as a whole can operate normally.

[0010] Preferably, a return spring is sleeved on the surface of the piston rod. The end of the return spring near the DC power supply is fixedly connected to the inner wall of the mounting cavity. The return spring is in a stable state at this time. This can quickly reset the guide rod after the piston rod separates from the guide rod, so as to ensure that the guide rod can be used repeatedly. In addition, this can automatically cut off the connection between the electrode plate and the DC power supply, reducing the probability of the DC switch being accidentally triggered.

[0011] Preferably, buffer grooves are provided at the opposite ends of the two electrode plates, and conductive springs are fixedly connected to the inner walls of the buffer grooves. The vertical cross-sectional shape of the conductive springs is V-shaped. This can ensure that the electrode plates are stably connected to the DC power supply and reduce the probability of the DC power supply being damaged or the electrode plates failing to make contact with the DC power supply.

[0012] Preferably, an elastic diaphragm is fixedly connected to the inner wall of the connecting pipe and disposed below the piston rod. The top of the elastic diaphragm contacts the bottom of the piston rod, which can reduce the probability of hydraulic oil leaking from the inside of the connecting pipe, thereby achieving a good sealing effect.

[0013] Preferably, the diameter of the piston rod is larger than the inner diameter of the downward-opening connecting pipe. The pressure regulating mechanism includes a threaded cap and a pressure spring. The threaded cap is threaded to the top of the connecting pipe, and the pressure spring is sleeved on the surface of the piston rod. The top of the pressure spring is engaged with a connecting ring that is slidably connected between the piston rod and the connecting pipe. The top of the connecting ring is fixedly connected with a threaded plate arranged in a ring shape. The top of the threaded plate extends to the outside of the threaded cap. The top of the threaded cap is rotatably connected with an adjusting nut that is threaded to the threaded plate. By setting the pressure regulating mechanism, an upward resistance is always provided to the piston rod to ensure that the hydraulic oil can push the guide rod only when it reaches the commanded pressure in the pipeline. Furthermore, the adjustable design allows the use of hydraulic oil with different pressure differentials, thereby improving the overall applicability of the triggering mechanism.

[0014] Preferably, a telescopic dust cover is rotatably connected to the top of the adjusting nut, the threaded plate is disposed inside the telescopic dust cover, and a dust cover fixedly connected to the threaded plate is rotatably connected to the top of the telescopic dust cover. This can prevent dust from falling onto the threads of the threaded plate and the surface of the adjusting nut, so as to ensure that the staff can carry out normal adjustment work.

[0015] Preferably, the pressure relief mechanism includes a pressure relief valve fixedly connected to and communicating with the second liquid guide pipe. The top of the pressure relief valve is connected to a fifth liquid guide pipe that is connected to one of the communicating pipes. The end of the fifth liquid guide pipe near the filter is connected to a one-way valve that is connected to the filter. The one-way valve blocks from the filter to the fifth liquid guide pipe. By setting the pressure relief mechanism, when the hydraulic oil inside the second liquid guide pipe opens the pressure relief valve, this not only increases the flow area of ​​the hydraulic oil to reduce the pressure on the second liquid guide pipe, but also ensures that only when the hydraulic oil passes through the fifth liquid guide pipe can it trigger the other piston rod. This also reduces the probability of the triggering mechanism being accidentally triggered by hydraulic oil under high pressure, further improving the practicality of the filtration device.

[0016] Preferably, the regulating mechanism includes a controller and two three-way solenoid valves. The controller is fixedly connected to the top of the mounting bracket. The opposite ends of the two DC switches are electrically connected to the controller. The two three-way solenoid valves are symmetrically electrically connected to both sides of the controller. The opposite ends of the first liquid guide pipe and the two second liquid guide pipes are connected to one of the three-way solenoid valves. The opposite ends of the two third liquid guide pipes and the fourth liquid guide pipe are connected to the other three-way solenoid valve. By setting the regulating mechanism, the regulating mechanism can quickly switch the filter oil circuit when the command fed back by the triggering mechanism is triggered, so that the operator can replace the blocked filter in time without stopping the machine, thereby ensuring the operating efficiency of the entire mechanical hydraulic device for soil remediation.

[0017] The beneficial effects of this invention are:

[0018] 1. By setting up a filter device, when the hydraulic oil pushes open the pressure relief mechanism, the triggering mechanism is triggered in time. The triggering mechanism alerts the surrounding staff and at the same time feeds back to the regulating mechanism, so that the regulating mechanism switches the filter oil circuit in time. This allows the staff to replace the blocked filter in time without stopping the machine. This not only ensures the normal operation of the entire mechanical hydraulic device for soil remediation, but also reduces the resistance of hydraulic oil flow, thereby improving the overall efficiency of the mechanical hydraulic device for soil remediation.

[0019] 2. By setting a trigger mechanism, the staff can estimate the pressure of the hydraulic oil in the pipeline by the real-time height of the piston rod, so that the staff can easily judge whether the filter needs to be replaced and maintained. When the pressure difference on both sides of the filter reaches a certain level, the trigger mechanism can also warn the surrounding staff to replace and maintain it in time, reducing the probability of damage to the internal components of the filter.

[0020] 3. By setting up a pressure relief mechanism, when the hydraulic oil inside the second guide pipe opens the pressure relief valve, this not only increases the flow area of ​​the hydraulic oil to reduce the pressure on the second guide pipe, but also ensures that only when the hydraulic oil passes through the fifth guide pipe can it trigger the other piston rod. This also reduces the probability of the triggering mechanism being accidentally triggered by the hydraulic oil under high pressure, further improving the practicality of the filter device.

[0021] 4. By setting an adjustment mechanism, the adjustment mechanism can quickly switch the filter oil circuit when the instruction fed back by the trigger mechanism is triggered, so that the staff can replace the blocked filter in time without stopping the machine, so as to ensure the operating efficiency of the entire mechanical hydraulic device used for soil remediation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the filtration device in this invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the filtration device in this invention;

[0025] Figure 4 for Figure 3 Enlarged view of A in the middle;

[0026] Figure 5 for Figure 3 Enlarged view of B in the middle;

[0027] Figure 6 This is an exploded view of the partial cut-off structure of the triggering mechanism in this invention;

[0028] Figure 7 This is a schematic diagram showing the connection between the triggering mechanism and the adjusting mechanism in this invention;

[0029] Figure 8 This is a schematic diagram of the pressure relief mechanism in this invention.

[0030] In the diagram: 1. Hydraulic oil tank; 2. Hydraulic pump unit; 3. Hydraulic control device; 4. Filter device; 5. First guide pipe; 6. Second guide pipe; 7. Filter; 8. Third guide pipe; 9. Fourth guide pipe; 10. Pressure relief mechanism; 1001. Pressure relief valve; 1002. Fifth guide pipe; 1003. Check valve; 11. Triggering mechanism; 1101. Connecting pipe; 1102. Piston rod; 1103. Pressure regulating mechanism; 11031. Threaded cap; 11032. Pressure spring; 11033. Connecting ring; 11034. Threaded plate; 11035. Adjusting nut; 11036. Telescopic dust cover; 11037. Dust cover; 1104. Mounting bracket; 1105. Mounting cavity; 1106. DC switch; 1107. Audible and visual alarm; 1108. Electrode plate; 1109. DC power supply; 1110. Guide rod; 1111. Return spring; 1112. Buffer groove; 1113. Conductive spring; 1114. Elastic diaphragm; 12. Adjustment mechanism; 1201. Controller; 1202. Three-way solenoid valve. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] In practical implementation: such as Figure 1-8As shown, a mechanical hydraulic device for soil remediation includes a hydraulic tank 1. A hydraulic pump device 2 is fixedly connected to the top of the hydraulic tank 1. A hydraulic control device 3 is electrically connected to the surface of the hydraulic pump device 2. Both ends of the hydraulic pump device 2 are fixedly connected to filter devices 4, which are also fixedly connected to the top of the hydraulic tank 1. The end of the filter device 4 away from the hydraulic pump device 2 is connected to the top of the hydraulic tank 1. The front filter device 4 includes a first liquid guide pipe 5 fixedly connected to and connected to the top of the hydraulic tank 1. Two second liquid guide pipes 6, both connected to the first liquid guide pipe 5, are fixedly connected to the end of the first liquid guide pipe 5 away from the hydraulic tank 1. A filter 7, connected to the second liquid guide pipe 6, is threadedly connected to the end of the second liquid guide pipe 6 away from the first liquid guide pipe 5. The filter 7 is located away from the second liquid guide pipe. One end of the second guide pipe 6 is threadedly connected to a third guide pipe 8 that communicates with the filter 7. A fourth guide pipe 9 that communicates with the two third guide pipes 8 is fixedly connected between them. The end of the fourth guide pipe 9 away from the third guide pipe 8 is connected to the hydraulic pump device 2. A pressure relief mechanism 10 that communicates with the second guide pipe 6 is fixedly connected to the upper surface of the second guide pipe 6. The end of the pressure relief mechanism 10 away from the second guide pipe 6 is connected to the filter 7. A triggering mechanism 11 is installed between the pressure relief mechanism 10 and the adjacent third guide pipe 8. An adjusting mechanism 12 is electrically connected between the two triggering mechanisms 11. The structures of the front and rear filter devices 4 are the same. The first guide pipe 5 in the rear filter device 4 is connected to the other end of the hydraulic pump device 2. The fourth guide pipe 9 in the rear filter device 4 is connected to the top of the hydraulic oil tank 1.

[0033] like Figure 3-7As shown, the triggering mechanism 11 includes two connecting pipes 1101 and a mounting bracket 1104. The two connecting pipes 1101 are respectively fixedly connected to the upper surface of the third liquid guide pipe 8 and the pressure relief mechanism 10. The bottoms of the two connecting pipes 1101 are respectively connected to the third liquid guide pipe 8 and the pressure relief mechanism 10. A piston rod 1102 is slidably connected to the inner wall of the connecting pipe 1101. The top of the piston rod 1102 extends through to the outside of the connecting pipe 1101. A pressure regulating mechanism 1103, which is threaded to the top of the connecting pipe 1101, is sleeved on the surface of the piston rod 1102. The mounting bracket 1104... Mounting bracket 1104 is fixedly connected to the top of hydraulic oil tank 1. Two mounting cavities 1105 are formed inside mounting bracket 1104. A DC switch 1106 is fixedly connected to the inner top wall of mounting cavity 1105. An audible and visual alarm 1107, fixedly connected to the top of mounting bracket 1104, is electrically connected to the top of DC switch 1106. Electrode plates 1108 are electrically connected to both poles of DC switch 1106. A DC power supply 1109 is fixedly connected to the inner bottom wall of mounting cavity 1105. The DC power supply 1109 is positioned between the two electrode plates 1108. Each electrode 1108 has a guide rod 1110 fixedly connected to its opposite ends. Both guide rods 1110 extend through the outside of the mounting cavity 1105. The end of the guide rod 1110 furthest from the DC power supply 1109 is positioned directly above the center point of the piston rod 1102. The top vertical cross-section of the piston rod 1102 is arc-shaped, with its center facing away from the DC power supply 1109. The end of the guide rod 1110 furthest from the DC power supply 1109 is arc-shaped. A return spring 1111 is fitted onto the surface of the piston rod 1102 for resetting. One end of the spring 1111 near the DC power supply 1109 is fixedly connected to the inner wall of the mounting cavity 1105, and the reset spring 1111 is in a stable state at this time; buffer grooves 1112 are provided at the opposite ends of the two electrode plates 1108, and conductive springs 1113 are fixedly connected to the inner wall of the buffer grooves 1112. The vertical cross-sectional shape of the conductive springs 1113 is V-shaped; an elastic diaphragm 1114 located below the piston rod 1102 is fixedly connected to the inner wall of the connecting pipe 1101, and the top of the elastic diaphragm 1114 contacts the bottom of the piston rod 1102.

[0034] like Figure 5-6As shown, the diameter of the piston rod 1102 is larger than the inner diameter of the downward-opening connecting pipe 1101. The pressure regulating mechanism 1103 includes a threaded cap 11031 and a pressure spring 11032. The threaded cap 11031 is threaded to the top of the connecting pipe 1101. The pressure spring 11032 is sleeved on the surface of the piston rod 1102. The top of the pressure spring 11032 is engaged with a connecting ring 11033 that is slidably connected between the piston rod 1102 and the connecting pipe 1101. The top of the connecting ring 11033 is fixedly connected with a threaded plate 11034 arranged in a ring shape. The top of the threaded plate 11034 extends to the outside of the threaded cap 11031. The top of the threaded cap 11031 is rotatably connected with an adjusting nut 11035 that is threaded to the threaded plate 11034. When the pushing force on the piston rod 1102 disappears, the pressure spring 11032 pushes the piston rod 1102 back, and the piston rod 1102 and the guide rod... 1110 separates and returns to its original position. At this time, the reset spring 1111 pushes back the guide rod 1110, and the guide rod 1110 drives the electrode plate 1108 to separate from the DC power supply 1109. When the operator needs to adjust the resistance of the piston rod 1102, the operator only needs to rotate the adjusting nut 11035 in the corresponding direction. The adjusting nut 11035 drives the threaded plate 11034 to rise and fall by rotating. The threaded plate 11034 drives the connecting ring 11033 to rise and fall. The connecting ring 11033 compresses or releases the pressure spring 11032, so that the pressure spring 11032 increases or decreases the pressure on the piston rod 1102. The top of the adjusting nut 11035 is rotatably connected to the telescopic dust cover 11036. The threaded plate 11034 is set inside the telescopic dust cover 11036. The top of the telescopic dust cover 11036 is rotatably connected to the dust cover 11037, which is fixedly connected to the threaded plate 11034.

[0035] like Figure 3 and Figure 8 As shown, the pressure relief mechanism 10 includes a pressure relief valve 1001 fixedly connected to the upper surface of the second liquid guide pipe 6 and communicating with the second liquid guide pipe 6. The top of the pressure relief valve 1001 is connected to a fifth liquid guide pipe 1002 that is connected to one of the connecting pipes 1101. The end of the fifth liquid guide pipe 1002 near the filter 7 is connected to a one-way valve 1003 that is connected to the filter 7. The blocking direction of the one-way valve 1003 is from the filter 7 to the fifth liquid guide pipe 1002.

[0036] like Figure 3 , Figure 5 , Figure 7 and Figure 8As shown, the regulating mechanism 12 includes a controller 1201 and two three-way solenoid valves 1202. The controller 1201 is fixedly connected to the top of the mounting bracket 1104. The opposite ends of the two DC switches 1106 are electrically connected to the controller 1201. The two three-way solenoid valves 1202 are symmetrically electrically connected to both sides of the controller 1201. The opposite ends of the first liquid guide pipe 5 and the two second liquid guide pipes 6 are connected to one of the three-way solenoid valves 1202. The opposite ends of the two third liquid guide pipes 8 and the fourth liquid guide pipe 9 are connected to the other three-way solenoid valve 1202.

[0037] The specific operating procedure of this invention is as follows:

[0038] When the device is operating normally, the hydraulic pump device 2 delivers hydraulic oil into the first guide pipe 5. The first guide pipe 5 delivers hydraulic oil into the corresponding second guide pipe 6 through the three-way solenoid valve 1202 connected to it. The second guide pipe 6 delivers hydraulic oil into the filter 7. The filter 7 filters out the impurities mixed in the hydraulic oil. Then, the pure hydraulic oil is delivered into the third guide pipe 8 through the filter 7. The third guide pipe 8 delivers hydraulic oil into the hydraulic oil tank 1 or the external hydraulic structure through the three-way solenoid valve 1202 connected to it.

[0039] During the above process, as the hydraulic oil passes through the third guide pipe 8, it continuously pushes the adjacent piston rod 1102 upward through the connected elastic diaphragm 1114. As the piston rod 1102 moves upward, it pushes against the adjacent guide rod 1110, forcing the guide rod 1110 back into the mounting cavity 1105. The guide rod 1110 then causes the connected electrode plate 1108 to contact one of the poles of the DC power supply 1109. Because the filter element inside the filter 7 will accumulate impurities during prolonged use... Many impurities obstruct the normal flow of hydraulic oil. As a result, the resistance to hydraulic oil entering the filter 7 through the second guide pipe 6 gradually increases. When the pressure of the hydraulic oil inside the second guide pipe 6 exceeds the resistance of the pressure relief valve 1001, the pressure relief valve 1001 is opened by the hydraulic oil, and the hydraulic oil flows through the pressure relief valve 1001 into the fifth guide pipe 1002. The fifth guide pipe 1002 then delivers the hydraulic oil into the filter 7. During the process of the hydraulic oil passing through the fifth guide pipe 1002, the hydraulic oil is continuously pumped through the connected elastic diaphragm 1114. Pushing the adjacent piston rod 1102 upwards causes it to push against the adjacent guide rod 1110, which is then forced back into the mounting cavity 1105. The guide rod 1110 then drives the connected electrode plate 1108 to contact the other pole of the DC power supply 1109. At this time, both poles of the DC switch 1106 are simultaneously powered. The DC switch 1106, according to a preset program, activates the audible and visual alarm 1107, alerting nearby personnel and enabling them to respond promptly. When filter 7 is replaced, DC switch 1106 sends a command to controller 1201 according to a preset program. Controller 1201 controls two three-way solenoid valves 1202 to disconnect from the original second guide pipe 6 and the original third guide pipe 8 according to the preset program corresponding to the command. Then, another second guide pipe 6 and another third guide pipe 8 are connected to the first guide pipe 5 and the fourth guide pipe 9 respectively. At this time, the hydraulic oil enters another unused filter 7 through the second guide pipe 6 for filtration. At this time, the operator can replace the filter 7 that is blocked by impurities without stopping the machine.

[0040] In summary, compared to existing mechanical hydraulic filtration structures, this filtration device 4 can automatically send an alarm to the surrounding area and switch the filtration oil circuit after the resistance inside the filter 7 reaches the command. This allows the staff to replace the blocked filter 7 in a timely manner without stopping the machine. This not only ensures the normal operation of the entire mechanical hydraulic device for soil remediation, but also reduces the resistance of hydraulic oil flow, thereby improving the overall efficiency of the mechanical hydraulic device for soil remediation.

[0041] It should be noted that the hydraulic oil tank 1, hydraulic pump device 2, hydraulic control device 3, filter 7, pressure relief valve 1001, check valve 1003, DC switch 1106, audible and visual alarm 1107, DC power supply 1109, controller 1201, and three-way solenoid valve 1202 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the hydraulic pump device 2, hydraulic control device 3, audible and visual alarm 1107, DC power supply 1109, controller 1201, and three-way solenoid valve 1202 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mechanical hydraulic device for soil remediation, comprising a hydraulic oil tank (1), characterized in that: A hydraulic pump device (2) is fixedly connected to the top of the hydraulic oil tank (1). A hydraulic control device (3) is electrically connected to the surface of the hydraulic pump device (2). A filter device (4) is fixedly connected to the top of the hydraulic oil tank (1) at both ends of the hydraulic pump device (2). The end of the filter device (4) away from the hydraulic pump device (2) is connected to the top of the hydraulic oil tank (1). The aforementioned filter device (4) includes a first liquid guide pipe (5) fixedly connected to the top of the hydraulic oil tank (1) and communicating with the top of the hydraulic oil tank (1). Two second liquid guide pipes (6) are fixedly connected to the end of the first liquid guide pipe (5) away from the hydraulic oil tank (1), and both are communicating with the first liquid guide pipe (5). A filter (7) communicating with the second liquid guide pipe (6) is threadedly connected to the end of the second liquid guide pipe (6) away from the first liquid guide pipe (5). A third liquid guide pipe (8) communicating with the filter (7) is threadedly connected to the end of the filter (7) away from the second liquid guide pipe (6). The two third liquid guide pipes (8) 8) A fourth liquid guide pipe (9) is fixedly connected between the two third liquid guide pipes (8). The end of the fourth liquid guide pipe (9) away from the third liquid guide pipe (8) is connected to the hydraulic pump device (2). A pressure relief mechanism (10) connected to the second liquid guide pipe (6) is fixedly connected to the upper surface of the second liquid guide pipe (6). The end of the pressure relief mechanism (10) away from the second liquid guide pipe (6) is connected to the filter (7). A triggering mechanism (11) is installed between the pressure relief mechanism (10) and the adjacent third liquid guide pipe (8). An adjusting mechanism (12) is electrically connected between the two triggering mechanisms (11). The triggering mechanism (11) includes two connecting pipes (1101) and a mounting bracket (1104). The two connecting pipes (1101) are respectively fixedly connected to the upper surface of the third liquid guide pipe (8) and the pressure relief mechanism (10). The bottoms of the two connecting pipes (1101) are respectively connected to the third liquid guide pipe (8) and the pressure relief mechanism (10). A piston rod (1102) is slidably connected to the inner wall of the connecting pipe (1101). The top of the piston rod (1102) extends through to the outside of the connecting pipe (1101). A pressure regulating mechanism (1103) threaded to the top of the connecting pipe (1101) is sleeved on the surface of the piston rod (1102). The mounting bracket (1104) is fixedly connected to the top of the hydraulic oil tank (1). Two mounting cavities (1105) are opened inside the mounting bracket (1104). A DC switch (1106) is fixedly connected to the inner top wall of the mounting cavity (1105). The top of the DC switch (1106) is electrically connected to an audible and visual alarm (1107) fixedly connected to the top of the mounting bracket (1104). Both poles of the DC switch (1106) are electrically connected to electrode plates (1108). A DC power supply (1109) is fixedly connected to the inner bottom wall of the mounting cavity (1105). The DC power supply (1109) is located between the two electrode plates (1108). Guide rods (1110) are fixedly connected to the opposite ends of the two electrode plates (1108). The opposite ends of the two guide rods (1110) extend to the outside of the mounting cavity (1105). The end of the guide rod (1110) away from the DC power supply (1109) is located directly above the center point of the piston rod (1102). The regulating mechanism (12) includes a controller (1201) and two three-way solenoid valves (1202). The controller (1201) is fixedly connected to the top of the mounting bracket (1104). The opposite ends of the two DC switches (1106) are electrically connected to the controller (1201). The two three-way solenoid valves (1202) are symmetrically electrically connected to both sides of the controller (1201). The opposite ends of the first liquid guide tube (5) and the two second liquid guide tubes (6) are connected to one of the three-way solenoid valves (1202). The opposite ends of the two third liquid guide tubes (8) and the fourth liquid guide tube (9) are connected to the other three-way solenoid valve (1202). When the filter (7) is clogged, the DC switch (1106) controls the activation of the audible and visual alarm (1107) according to the preset program. The audible and visual alarm (1107) alerts the surrounding staff so that the staff can replace the filter (7) in time. At the same time, the DC switch (1106) sends a command to the controller (1201) according to the preset program. The controller (1201) controls the two three-way solenoid valves (1202) to disconnect from the original second guide pipe (6) and the original third guide pipe (8) according to the preset program corresponding to the command. Then, the other second guide pipe (6) and the other third guide pipe (8) are connected to the first guide pipe (5) and the fourth guide pipe (9) respectively. At this time, the hydraulic oil enters another unused filter (7) through the second guide pipe (6) for filtration. At this time, the staff can replace the filter (7) that is clogged by impurities without stopping the machine.

2. A mechanical hydraulic apparatus for soil remediation according to claim 1, characterized in that: The top vertical cross-section of the piston rod (1102) is arc-shaped, the center of the piston rod (1102) faces away from the DC power supply (1109), and the end of the guide rod (1110) away from the DC power supply (1109) is arc-shaped.

3. A mechanical hydraulic apparatus for soil remediation according to claim 1, characterized in that: A return spring (1111) is fitted on the surface of the piston rod (1102). The end of the return spring (1111) near the DC power supply (1109) is fixedly connected to the inner wall of the mounting cavity (1105). The return spring (1111) is in a stable state at this time.

4. A mechanical hydraulic apparatus for soil remediation according to claim 1, characterized in that: Each of the two electrode plates (1108) has a buffer groove (1112) at its opposite end. A conductive spring (1113) is fixedly connected to the inner wall of the buffer groove (1112). The vertical cross-sectional shape of the conductive spring (1113) is V-shaped.

5. A mechanical hydraulic apparatus for soil remediation according to claim 1, characterized in that: The inner wall of the connecting pipe (1101) is fixedly connected to an elastic diaphragm (1114) located below the piston rod (1102), and the top of the elastic diaphragm (1114) is in contact with the bottom of the piston rod (1102).

6. A mechanical hydraulic apparatus for soil remediation according to claim 1, characterized in that: The diameter of the piston rod (1102) is larger than the inner diameter of the downward opening of the connecting pipe (1101). The pressure regulating mechanism (1103) includes a threaded cap (11031) and a pressure spring (11032). The threaded cap (11031) is threaded to the top of the connecting pipe (1101). The pressure spring (11032) is sleeved on the surface of the piston rod (1102). The top of the pressure spring (11032) is engaged with a connecting ring (11033) that is slidably connected between the piston rod (1102) and the connecting pipe (1101). The top of the connecting ring (11033) is fixedly connected with a threaded plate (11034) that is distributed in a ring shape. The top of the threaded plate (11034) extends through to the outside of the threaded cap (11031). The top of the threaded cap (11031) is rotatably connected with an adjusting nut (11035) that is threaded to the threaded plate (11034).

7. A mechanical hydraulic apparatus for soil remediation according to claim 6, characterized in that: The top of the adjusting nut (11035) is rotatably connected to a telescopic dust cover (11036), the threaded plate (11034) is disposed inside the telescopic dust cover (11036), and the top of the telescopic dust cover (11036) is rotatably connected to a dust cover (11037) fixedly connected to the threaded plate (11034).

8. A mechanical hydraulic apparatus for soil remediation according to claim 1, characterized in that: The pressure relief mechanism (10) includes a pressure relief valve (1001) fixedly connected to the upper surface of the second liquid guide pipe (6) and communicating with the second liquid guide pipe (6). The top of the pressure relief valve (1001) is connected to a fifth liquid guide pipe (1002) which is connected to one of the communicating pipes (1101). The end of the fifth liquid guide pipe (1002) near the filter (7) is connected to a one-way valve (1003) which is connected to the filter (7). The blocking direction of the one-way valve (1003) is from the filter (7) to the fifth liquid guide pipe (1002).

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