A multi-adjustable channel hydraulic valve

Abstract

The present invention relates to the technical field of hydraulic valves, and discloses a multi-adjustable channel hydraulic valve, comprising a valve body, wherein the top of the valve body is fixedly connected with an oil inlet pipe, one side of the oil inlet pipe is fixedly connected with an interflow pipe, the top of the valve body is fixedly connected with a spray pipe, one side of the valve body is fixedly connected with an oil outlet pipe, one side of the oil outlet pipe is fixedly connected with a merging device, one side of the merging device is fixedly connected with a pipeline fixing device, one side of the pipeline fixing device is fixedly connected with a pipeline, the top of the piston base is fixedly connected with a momentary switch, and the momentary switch is set not to be started under normal circumstances. The present invention can evenly distribute the hydraulic oil by providing an auxiliary flow pipeline, thereby improving the overall working efficiency of the hydraulic system. When one of the oil outlet pipes fails, the other oil outlet pipes and the hydraulic components connected thereto can continue to work, thereby ensuring the continuity and reliability of the hydraulic system.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic valves, and more specifically to a multi-adjustment channel hydraulic valve. Background Art

[0002] The function of hydraulic valves in hydraulic systems is to control and adjust the flow direction, pressure and flow of oil in the hydraulic system so that the actuator and the working mechanism it drives can obtain the required movement direction, thrust (torque) and movement speed (speed), etc. Therefore, any hydraulic system, no matter how simple it is, cannot be without hydraulic valves. Hydraulic mechanical equipment with the same process purpose can form a variety of hydraulic system solutions with completely different oil circuit structures through the use of different combinations of hydraulic valves.

[0003] The hydraulic valve mainly includes a valve core, a valve body and a device that drives the valve core to move relative to the valve body. The main forms of the valve core are sliding valves, cone valves and ball valves. In addition to the valve body hole or valve seat hole that matches the valve core, the body also has oil inlet, oil outlet and oil drain ports for external oil pipes. The hydraulic valve uses the relative movement of the valve core in the valve body to control the on-off of the valve port and the size of the opening. When the valve core moves, the size of the valve port will change, thereby affecting the flow rate through the valve port. The flow rate through the valve port is related to the pressure difference before and after the valve port and the valve port area, and always satisfies the pressure-flow equation.

[0004] Since the flow rate of the hydraulic valve is limited by the flow channel area, if the flow rate is too large, the pressure loss will increase. At this time, it is necessary to add a working link to supply oil to one actuator in a double-link manner to meet the flow supply, and solve the problem that the pressure loss of the working link increases with the increase of the flow rate. When the flow required by the two actuators is insufficient, it is necessary to add two working links in the above way to solve the problem. This method greatly increases the installation space and cost of the hydraulic valve. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-adjustable channel hydraulic valve to solve the problems existing in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-adjustable channel hydraulic valve, comprising a valve body, connecting feet are fixedly connected on both sides of the bottom of the valve body, a shock absorbing device is fixedly connected on one side of the valve body, a fixing device is fixedly connected on the top of the valve body, a hole is opened inside the fixing device, a connecting rod is fixedly connected inside the fixing device, threads are provided on both sides of the connecting rod, nuts are threadedly connected on both sides of the connecting rod, the connecting rod passes through the hole opened in the fixing device and is threadedly connected to the nuts, an oil inlet pipe is fixedly connected on the top of the valve body, a mutual flow pipe is fixedly connected on one side of the oil inlet pipe, a spray pipe is fixedly connected on the top of the valve body, an oil outlet pipe is fixedly connected on one side of the valve body, a merging device is fixedly connected on one side of the merging device, a pipeline fixing device is fixedly connected on one side of the pipeline fixing device, and a pipeline is fixedly connected on one side of the pipeline fixing device.

[0007] Furthermore, the bottom of the oil inlet pipe is fixedly connected to an oil outlet pipe structure, a sealing ring is fixedly connected around the oil inlet pipe, a sealing ring nut is threadedly connected to one side of the sealing ring, the top of the oil inlet pipe is fixedly connected to the oil pipeline, the interior of the interflow pipeline is fixedly connected to a baffle, the interior of the baffle is fixedly connected to a connecting shaft, the top of the baffle is fixedly connected to a magnet, the top of the interflow pipeline is fixedly connected to a float switch pipeline, the top of the float switch pipeline is fixedly connected to a float switch, the bottom of the float switch is fixedly connected to a float, the top of the interflow pipeline is fixedly connected to an electromagnetic switch, one side of the electromagnetic switch is fixedly connected to a fixing plate, and the top of the fixing plate is threadedly connected to a bolt.

[0008] Furthermore, a connecting pipe is fixedly connected to the top of the ejection pipe, a storage tank is fixedly connected to the top of the connecting pipe, a connecting plate is fixedly connected to one side of the ejection pipe, a fixing bolt is provided on the top of the connecting plate, a ejection device is fixedly connected to the top of the ejection pipe, a nozzle is fixedly connected to the top of the ejection device, an oil outlet connecting structure is fixedly connected to one side of the oil outlet pipe, a mainstream pipeline is fixedly connected to the other side of the oil outlet pipe, auxiliary flow pipelines are fixedly connected to the two sides of the oil outlet pipe, a fixing structure is fixedly connected to the top of the auxiliary flow pipeline, a control switch is fixedly connected to the middle of the fixed structure, and a baffle structure is provided inside the auxiliary flow pipeline.

[0009] Furthermore, one side of the oil inlet pipe is fixedly connected to a control oil circuit pipe, one side of the control oil circuit pipe is fixedly connected to a piston base, one side of the piston base is fixedly connected to a piston base connecting structure, one side of the piston base connecting structure is fixedly connected to a piston rod connecting structure, one side of the piston rod connecting structure is fixedly connected to a piston rod, the top of the piston base is fixedly connected to a momentary switch, one side of the piston rod is fixedly connected to a valve seat, one side of the valve seat is fixedly connected to a movable valve, and the interior of the movable valve is fixedly connected to a spring.

[0010] Furthermore, the shock absorbing device is fixedly connected between the valve body and the valve body on the other side, and the shock absorbing device is made of butyl rubber material.

[0011] Furthermore, there is a seal between the oil inlet pipe and the oil delivery pipe, and the seal is made of polyurethane material. The connecting shaft is fixedly connected in the middle of the baffle, and two openings are opened on the top of the interflow pipe. The connecting device on the top of the float ball is movable, and the float ball can move freely. The float ball switch is fixedly connected to the outside of the top of the float ball switch pipeline. There is a layer of oil-proof material between the float ball switch and the float ball switch pipeline, and the oil-proof material is made of polyurethane. The shell of the electromagnetic switch is made of plastic material.

[0012] Furthermore, an infrared sensing device and a spray hole structure are fixedly connected to the bottom of the nozzle, the connecting pipe is threadedly connected to the storage tank, and the internal cooling liquid of the storage tank adopts a water-based coolant.

[0013] Furthermore, the piston rod is tightly connected to the oil inlet pipe, and the momentary switch is set to not start under normal circumstances. When the instantaneous pressure is 0.5 times that under normal circumstances, the momentary switch opens, and the momentary switch controls the control switch. After the momentary switch is turned on, the control switch is closed. At this time, the auxiliary flow pipeline is opened, and one side of the spring is fixedly connected to the valve seat, and the other side is fixedly connected to the valve body.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention provides auxiliary flow pipes so that the hydraulic oil can be evenly distributed, thereby improving the overall working efficiency of the hydraulic system. When one of the oil outlet pipes fails, the other oil outlet pipes and the hydraulic components connected thereto can continue to work, thereby ensuring the continuity and reliability of the hydraulic system.

[0016] 2. The present invention is provided with a merging device, which can effectively solve the problem that when the pressure or flow of one hydraulic valve is insufficient, the hydraulic oil of another hydraulic valve can be supplied to the hydraulic valve that needs pressure or flow, thereby reducing the installation space and cost of the hydraulic valve.

[0017] 3. The instantaneous switch of the present invention not only plays a switch role, but also protects the hydraulic valve to prevent the impact force generated by the sudden increase of hydraulic oil due to the change of the flow rate of hydraulic oil from damaging the internal structure of the hydraulic valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Middle A is an enlarged schematic diagram;

[0020] Figure 3 It is a schematic diagram of the overall structure of the oil inlet pipe of the present invention;

[0021] Figure 4 It is a schematic diagram of the overall structure of the float switch of the present invention;

[0022] Figure 5 It is an overall schematic diagram of the spraying device of the present invention;

[0023] Figure 6 It is a schematic diagram of the oil outlet pipe structure of the present invention;

[0024] Figure 7 It is a schematic diagram of the internal structure of the hydraulic valve of the present invention.

[0025] The accompanying drawings are marked as follows: 1. valve body; 101. connecting foot; 102. shock absorbing device; 103. nut; 104. fixing device; 105. connecting rod; 2. oil inlet pipe; 201. connecting oil outlet pipe structure; 202. sealing ring; 2021. sealing ring nut; 203. oil pipeline; 3. mutual flow pipeline; 301. baffle; 3011. connecting shaft; 3012. magnet; 302. float switch pipeline; 3021. float; 3022. float switch; 303. electromagnetic switch; 3031. bolt; 3032. fixing plate; 4. ejection pipe; 401. connecting pipe; 402 , storage tank; 403, connecting plate; 4031, fixing bolt; 404, spray device; 405, nozzle; 5, oil outlet pipe; 501, oil outlet connection structure; 502, auxiliary flow pipeline; 5021, fixing structure; 5022, control switch; 503, mainstream pipeline; 6, confluence device; 7, pipeline; 701, pipeline fixing device; 8, control oil circuit pipe; 801, piston base; 802, piston base connection structure; 803, piston rod connection structure; 804, momentary switch; 805, piston rod; 806, movable valve; 8061, spring; 8062, valve seat. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The multi-adjustable channel hydraulic valve involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0027] Reference Figures 1 to 7 The present invention provides a multi-adjustable channel hydraulic valve, comprising a valve body 1, two sides of the bottom of the valve body 1 are fixedly connected with connecting feet 101, one side of the valve body 1 is fixedly connected with a shock absorbing device 102, the top of the valve body 1 is fixedly connected with a fixing device 104, a hole is opened inside the fixing device 104, a connecting rod 105 is fixedly connected inside the fixing device 104, threads are arranged on both sides of the connecting rod 105, nuts 103 are threadedly connected on both sides of the connecting rod 105, the connecting rod 105 passes through the holes opened inside the fixing device 104 and is threadedly connected with the nuts 103, an oil inlet pipe 2 is fixedly connected to the top of the valve body 1, one side of the oil inlet pipe 2 is fixedly connected with an interflow pipe 3, a spray pipe 4 is fixedly connected to the top of the valve body 1, one side of the valve body 1 is fixedly connected with an oil outlet pipe 5, one side of the oil outlet pipe 5 is fixedly connected with a merging device 6, one side of the merging device 6 is fixedly connected with a pipeline fixing device 701, and one side of the pipeline fixing device 701 is fixedly connected with a pipeline 7.

[0028] In this embodiment, it is necessary to specifically supplement that: the shock absorbing device 102 is fixedly connected between the valve body 1 and the valve body 1 on the other side, and the shock absorbing device 102 is made of butyl rubber material. Butyl rubber has excellent damping performance among rubbers, and has excellent weather aging resistance, shock absorption, oil resistance and excellent insulation. The shock absorbing device 102 can effectively reduce the impact between the valve body 1 and the valve body 1.

[0029] In a preferred embodiment, the oil inlet pipe 2 and the interflow pipe 3 are included. The bottom of the oil inlet pipe 2 is fixedly connected to the oil outlet pipe structure 201. The periphery of the oil inlet pipe 2 is fixedly connected to a sealing ring 202. One side of the sealing ring 202 is threadedly connected to a sealing ring nut 2021. The top of the oil inlet pipe 2 is fixedly connected to an oil delivery pipe 203. The interior of the interflow pipe 3 is fixedly connected to a baffle 301. The interior of the baffle 301 is fixedly connected to a connecting shaft 3011. The baffle 301 is fixedly connected to a connecting shaft 3011. 01 is fixedly connected with a magnet 3012 on the top, the interflow pipe 3 is fixedly connected with a float switch pipeline 302 on the top, the float switch pipeline 302 is fixedly connected with a float switch 3022 on the top, the float switch 3022 is fixedly connected with a float 3021 on the bottom, the interflow pipe 3 is fixedly connected with an electromagnetic switch 303 on the top, the electromagnetic switch 303 is fixedly connected with a fixing plate 3032 on one side, and the fixing plate 3032 is threadedly connected with a bolt 3031 on the top.

[0030] In this embodiment, it is necessary to specifically add that: there is a seal between the oil inlet pipe 2 and the oil delivery pipe 203, and the seal is made of polyurethane material. This material has extremely high wear resistance and corrosion resistance, high hardness, not easy to deform and good sealing ability. The connecting shaft 3011 is fixedly connected to the middle of the baffle 301, and the top of the interflow pipe 3 has two openings. The connecting device on the top of the float 3021 adopts a movable connection, and the float 3021 can move freely. The float switch 3022 is fixedly connected to the float switch pipeline. The outer side of the top of 302 prevents hydraulic oil from entering the float switch 3022. There is a layer of oil-proof material between the float switch 3022 and the float switch pipeline 302. The oil-proof material is made of polyurethane, which is a synthetic material with excellent wear resistance, oil resistance and elasticity. The float switch 3022 controls the electromagnetic switch 303. The shell of the electromagnetic switch 303 is made of plastic material. Plastic itself does not have good conductivity, so the shielding effect of electromagnetic waves is weak, thereby increasing the control of the electromagnetic switch 303 on the magnet 3012.

[0031] In a preferred embodiment, it includes a blowout pipe 4 and an oil outlet pipe 5, wherein the top of the blowout pipe 4 is fixedly connected with a connecting pipe 401, the top of the connecting pipe 401 is fixedly connected with a storage tank 402, one side of the blowout pipe 4 is fixedly connected with a connecting plate 403, the top of the connecting plate 403 is provided with a fixing bolt 4031, the top of the blowout pipe 4 is fixedly connected with a blowout device 404, the top of the blowout device 404 is fixedly connected with a nozzle 405, one side of the oil outlet pipe 5 is fixedly connected with an oil outlet connecting structure 501, the other side of the oil outlet pipe 5 is fixedly connected with a mainstream pipeline 503, both sides of the oil outlet pipe 5 are fixedly connected with auxiliary flow pipelines 502, the top of the auxiliary flow pipeline 502 is fixedly connected with a fixing structure 5021, the middle of the fixed structure 5021 is fixedly connected with a control switch 5022, and the auxiliary flow pipeline 502 has a baffle structure inside.

[0032] In this embodiment, it is necessary to specifically supplement that: an infrared sensing device and a spray hole structure are fixedly connected to the bottom of the nozzle 405. When the temperature of the oil outlet pipe 5 rises, the nozzle 405 will spray out a cooling liquid. The connecting pipe 401 is threadedly connected to the storage tank 402. When the cooling liquid inside the storage tank 402 is used up, it can be easily replaced. The internal cooling liquid of the storage tank 402 adopts a water-based coolant. Water is the most common type of coolant because it has good heat dissipation and heat capacity and can quickly absorb and dissipate heat in the machine.

[0033] In a preferred embodiment, it includes an oil inlet pipe 2 and an oil outlet pipe 5, one side of the oil inlet pipe 2 is fixedly connected to a control oil circuit pipe 8, one side of the control oil circuit pipe 8 is fixedly connected to a piston base 801, one side of the piston base 801 is fixedly connected to a piston base connecting structure 802, one side of the piston base connecting structure 802 is fixedly connected to a piston rod connecting structure 803, one side of the piston rod connecting structure 803 is fixedly connected to a piston rod 805, the top of the piston base 801 is fixedly connected to a momentary switch 804, one side of the piston rod 805 is fixedly connected to a valve seat 8062, one side of the valve seat 8062 is fixedly connected to a movable valve 806, and the interior of the movable valve is fixedly connected to a spring 8061.

[0034] In this embodiment, it is necessary to specifically supplement that: the piston rod 805 is tightly connected to the oil inlet pipe 2 to prevent hydraulic oil from entering the momentary switch 804. The momentary switch 804 is set not to start under normal circumstances. When the instantaneous pressure is 0.5 times that under normal circumstances, the momentary switch 804 is turned on. The momentary switch 804 controls the control switch 5022. After the momentary switch 804 is turned on, the control switch 5022 is closed. At this time, the auxiliary flow pipeline 502 is opened, and one side of the spring 8061 is fixedly connected to the valve seat 8062, and the other side is fixedly connected to the valve body 1.

[0035] Working principle of the present invention: When using a multi-adjustable channel hydraulic valve, generally, hydraulic oil flows into the valve body 1 from the oil inlet pipe 2, and then enters the control oil circuit 8, the hydraulic oil pushes the piston 805, the piston 805 squeezes the valve body 806, then the hydraulic valve is opened, and the hydraulic oil flows out from the oil outlet pipe 5, if the hydraulic valve on one side needs to increase the flow and pressure, close the hydraulic valve on the other side, at this time, the hydraulic oil on the other side will slowly accumulate, and the hydraulic oil will enter the float switch pipeline 302, when the hydraulic oil makes the float 3021 float, the float switch 3022 is closed, and the electromagnetic switch 303 controlled by the float switch 3022 will also be closed, the magnet 3012 loses its magnetic effect, and the baffle 301 is not subjected to force at this time, and the hydraulic oil will flow from the other side to the side that needs to increase the flow and pressure, the hydraulic oil flows into the valve body 1 along the oil inlet pipe 2, and then enters the control oil flow 8, the hydraulic The oil pressure pushes the piston 805. Since a large amount of hydraulic oil enters at one time, the opening time of the instantaneous switch 804 is reduced. The instantaneous switch 804 is set to be not started under normal circumstances. When the instantaneous pressure is 0.5 times that of the normal situation, the instantaneous switch 804 is opened. After the instantaneous switch 804 is turned on, the control switch 5022 is closed. At this time, the hydraulic oil will flow out along the mainstream pipeline 503 and the auxiliary flow pipeline 502 at the same time. The hydraulic oil enters the merging device 6 and finally flows out from the pipeline 7. Since the hydraulic oil flow and pressure gradually increase, the temperature of the hydraulic oil will gradually increase. At this time, the cooling device 4 on the top of the valve body 1 will be opened, and an infrared sensing temperature device is provided at the bottom of the nozzle 405. When the temperature rises, the nozzle 405 will spray cooling liquid to cool the oil outlet pipe 5. The sprayed liquid not only has a cooling effect but also can reduce the foam generated in the hydraulic oil due to impact.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-adjustable channel hydraulic valve, comprising a valve body (1), characterized in that: Connecting feet (101) are fixedly connected to both sides of the bottom of the valve body (1), a shock absorbing device (102) is fixedly connected to one side of the valve body (1), a fixing device (104) is fixedly connected to the top of the valve body (1), a hole is provided inside the fixing device (104), a connecting rod (105) is fixedly connected to the inside of the fixing device (104), threads are provided on both sides of the connecting rod (105), nuts (103) are threadedly connected to both sides of the connecting rod (105), and the connecting rod (105) passes through the hole provided inside the fixing device (104) and is connected to the nut (103) threaded connection, the top of the valve body (1) is fixedly connected to an oil inlet pipe (2), one side of the oil inlet pipe (2) is fixedly connected to an interflow pipe (3), the top of the valve body (1) is fixedly connected to an outlet pipe (4), one side of the valve body (1) is fixedly connected to an oil outlet pipe (5), the outlet pipe (4) has a cooling effect on the oil outlet pipe (5), one side of the oil outlet pipe (5) is fixedly connected to a merging device (6), one side of the merging device (6) is fixedly connected to a pipeline fixing device (701), and one side of the pipeline fixing device (701) is fixedly connected to a pipeline (7).

2. A multi-adjustable channel hydraulic valve according to claim 1, characterized in that: The bottom of the oil inlet pipe (2) is fixedly connected to an oil outlet pipe connection structure (201), a sealing ring (202) is fixedly connected around the oil inlet pipe (2), a sealing ring nut (2021) is threadedly connected to one side of the sealing ring (202), the top of the oil inlet pipe (2) is fixedly connected to an oil delivery pipe (203), the interior of the interflow pipe (3) is fixedly connected to a baffle (301), the interior of the baffle (301) is fixedly connected to a connecting shaft (3011), and the top of the baffle (301) is fixedly connected to a magnet. (3012), the top of the interflow pipeline (3) is fixedly connected to a float switch pipeline (302), the top of the float switch pipeline (302) is fixedly connected to a float switch (3022), the bottom of the float switch (3022) is fixedly connected to a float (3021), the top of the interflow pipeline (3) is fixedly connected to an electromagnetic switch (303), one side of the electromagnetic switch (303) is fixedly connected to a fixing plate (3032), and the top of the fixing plate (3032) is threadedly connected to a bolt (3031).

3. The multi-adjustable channel hydraulic valve according to claim 1, characterized in that: The top of the ejection pipe (4) is fixedly connected to a connecting pipe (401), the top of the connecting pipe (401) is fixedly connected to a material storage tank (402), one side of the ejection pipe (4) is fixedly connected to a connecting plate (403), the top of the connecting plate (403) is provided with a fixing bolt (4031), the bottom of the ejection pipe (4) is fixedly connected to a ejection device (404), the bottom of the ejection device (404) is fixedly connected to a nozzle (405), one side of the oil outlet pipe (5) is fixedly connected to an oil outlet connection structure (501), the other side of the oil outlet pipe (5) is fixedly connected to a mainstream pipe (503), both sides of the oil outlet pipe (5) are fixedly connected to auxiliary flow pipes (502), the top of the auxiliary flow pipe (502) is fixedly connected to a fixing structure (5021), the middle of the fixing structure (5021) is fixedly connected to a control switch (5022), and a baffle structure is provided inside the auxiliary flow pipe (502).

4. A multi-adjustable channel hydraulic valve according to claim 3, characterized in that: One side of the oil inlet pipe (2) is fixedly connected to a control oil line pipe (8), one side of the control oil line pipe (8) is fixedly connected to a piston base (801), one side of the piston base (801) is fixedly connected to a piston base connection structure (802), one side of the piston base connection structure (802) is fixedly connected to a piston rod connection structure (803), one side of the piston rod connection structure (803) is fixedly connected to a piston rod (805), the top of the piston base (801) is fixedly connected to a momentary switch (804), one side of the piston rod (805) is fixedly connected to a valve seat (8062), one side of the valve seat (8062) is fixedly connected to a movable valve (806), and the inside of the movable valve (806) is fixedly connected to a spring (8061).

5. The multi-adjustable channel hydraulic valve according to claim 1, characterized in that: The shock absorbing device (102) is fixedly connected between the valve body (1) and the valve body (1) on the other side, and the shock absorbing device (102) is made of butyl rubber material.

6. A multi-adjustable channel hydraulic valve according to claim 2, characterized in that: A seal is provided between the oil inlet pipe (2) and the oil delivery pipe (203), and the seal is made of polyurethane material. The connecting shaft (3011) is fixedly connected to the middle of the baffle (301). Two openings are provided at the top of the mutual flow pipe (3). The connecting device at the top of the float (3021) is movably connected, and the float (3021) can move freely. The float switch (3022) is fixedly connected to the outside of the top of the float switch pipeline (302). A layer of oil-proof material is provided between the float switch (3022) and the float switch pipeline (302), and the oil-proof material is made of polyurethane. The shell of the electromagnetic switch (303) is made of plastic material.

7. The multi-adjustable channel hydraulic valve according to claim 3, characterized in that: The bottom of the nozzle (405) is fixedly connected with an infrared sensing device and a spray hole structure, the connecting pipe (401) is threadedly connected to the storage tank (402), and the internal cooling liquid of the storage tank (402) is a water-based coolant.

8. The multi-adjustable channel hydraulic valve according to claim 4, characterized in that: The piston rod (805) is tightly connected to the oil inlet pipe (2). The momentary switch (804) is set not to be activated under normal circumstances. When the pressure of the hydraulic oil is insufficient to trigger, the momentary switch (804) remains in a closed state. When the momentary pressure is 0.5 times that of the normal state, the momentary switch (804) opens. One side of the spring (8061) is fixedly connected to the valve seat (8062), and the other side is fixedly connected to the valve body (1).

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