A pump activated hydraulic control unit and system

Abstract

A pump starting hydraulic control unit, comprising a control pipeline, a liquid reservoir, a driving module, an executing module and a control module, the driving module comprises a manual pump, a filter and a check valve which are communicated in sequence, the manual pump, the filter and the check valve are arranged on the control pipeline, the manual pump is communicated with the liquid reservoir, the manual pump is a hand pump or a variable volume pump with a manually controlled piston rotation; the executing module comprises a hydraulic operating executor and a pipeline valve, the hydraulic operating executor is connected with the control pipeline, the control module comprises a pressure sensor, a pressure regulator, a low pressure instrument and a low pressure safety valve which are arranged on the control pipeline, the detection automatic control module comprises a root valve, a connecting pipe, a pressure guiding valve and a reset valve, the root valve is communicated with a pipeline and the connecting pipe, the pipeline is connected with a pressure end of the pressure guiding valve through the connecting pipe, an oil inlet of the pressure guiding valve is communicated with the control pipeline, and an oil outlet of the pressure guiding valve is communicated with a pressure end of the reset valve.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valve, in particular to a pump starting hydraulic control unit and system. BACKGROUND

[0002] In the existing oil or water supply pipeline transportation, once the pipeline leaks or is blocked, manual inspection is often needed to find the corresponding fault, at which time the automatic detection and disconnection of the pipeline itself cannot be realized.

[0003] In the prior art, application No. 2009200341477 discloses a hydraulic pipeline automatic closing valve, which comprises a hydraulic valve installed on a hydraulic pipeline, the hydraulic valve comprising a valve body and a movable assembly installed in the valve body for opening and closing the valve, a water flow switch installed on the hydraulic pipeline and detecting whether the liquid flows, a drive motor driving the movable assembly to open and close the valve, an electromagnetic switch connected in series in the power supply circuit of the drive motor, a delay control module delaying the control of the electromagnetic switch, and a power supply unit supplying power to the drive motor and the delay control module, the drive motor and the movable assembly being connected through a transmission mechanism, the water flow switch being connected to the delay control module, and the delay control module being connected to the electromagnetic switch; the electromagnetic switch is a normally open switch. The technical solution can realize the automatic closing of the hydraulic pipeline valve, but only detects the opening and closing of the valve according to whether there is water in the hydraulic pipeline, and cannot start the automatic opening and closing function according to more detailed hydraulic changes. If only the hydraulic pressure changes in the existing pipeline, the automatic opening and closing of the valve cannot be realized. SUMMARY

[0004] To solve the above problems, the present application provides a pump starting hydraulic control unit and system:

[0005] A pump starting hydraulic control unit, comprising a control pipeline, a liquid reservoir, a drive module, an execution module, a control module and a detection and control module, both ends of the control pipeline being connected to the liquid reservoir to form a closed loop structure, the control pipeline being used for circulating the liquid medium of the liquid reservoir,

[0006] The drive module comprises a manual pump, a filter and a check valve connected in sequence, the manual pump, the filter and the check valve being arranged on the control pipeline, the manual pump being connected to the liquid reservoir, and the manual pump being a hand pump or a variable volume pump with a manually controlled piston rotating;

[0007] The execution module comprises a hydraulic operation executor and a pipeline valve, the hydraulic operation executor being connected to the control pipeline, the hydraulic operation executor starting the pipeline valve when the hydraulic pressure in the control pipeline reaches a set value, and the pipeline valve controlling the opening and closing of the pipeline;

[0008] The control module comprises a pressure sensor, a pressure regulator, a low-pressure instrument and a low-pressure safety valve arranged on a control pipeline, the check valve, the pressure sensor, the pressure regulator, the low-pressure instrument, the low-pressure safety valve and the liquid reservoir are sequentially communicated, the pressure sensor is used for detecting the hydraulic pressure in the control pipeline, the pressure regulator is used for adjusting the hydraulic pressure value in the control pipeline, and the low-pressure instrument is used for detecting and displaying the hydraulic pressure value in the control pipeline.

[0009] The detection self-control module comprises a root valve, a connecting pipe, a pressure guiding valve and a reset valve, the root valve is connected with a pipeline and the connecting pipe, the root valve is used for controlling the communication or disconnection of the pipeline and the connecting pipe, the pipeline is connected with a pressure end of the pressure guiding valve through the connecting pipe, an oil inlet of the pressure guiding valve is communicated with a control pipeline, an oil outlet of the pressure guiding valve is communicated with a pressure end of the reset valve, the reset valve is connected in series on a first branch, two ends of the first branch are respectively communicated with the control pipeline and a liquid reservoir, and a communication point of the first branch and the control pipeline is located between the low-pressure safety valve and the pressure regulator.

[0010] When the pressure in the pipeline is in the set value range, the pressure guiding valve communicates the control pipeline with the pressure end of the reset valve, the reset valve disconnects the first branch, the hydraulic pressure of the control pipeline is constant, the hydraulic operation actuator controls the pipeline valve to open the pipeline, and when the pressure in the pipeline is not in the set value range, the pressure guiding valve disconnects the control pipeline from the pressure end of the reset valve, the reset valve communicates the first branch, the hydraulic pressure of the control pipeline changes, and the hydraulic operation actuator controls the pipeline valve to disconnect the pipeline.

[0011] Preferably, the manual pump is a variable volume pump, which comprises a one-way inlet valve, a pump body and a one-way outlet valve, a lower end of the one-way inlet valve is communicated with the liquid reservoir, an upper end of the one-way inlet valve is communicated with a lower end of a piston chamber arranged in the pump body, one side of the lower end of the piston chamber is communicated with the one-way outlet valve, a rotating piston piece matched with the piston chamber is arranged in the piston chamber, the rotating piston piece comprises a piston head, a screw rod and a rotating rudder which are sequentially and fixedly connected from bottom to top, the piston head is matched with the piston chamber, the screw rod is threadedly connected with a threaded hole arranged at an upper end of the piston chamber, the screw rod passes through the threaded hole and is fixedly connected with a lower end of the rotating rudder, the rotating rudder is used for twisting the rotating direction of the screw rod, a torsional spring is sleeved on the screw rod, an upper end of the torsional spring is fixedly connected with an inner wall of the upper end of the piston chamber, and a lower end of the torsional spring is fixedly connected with an upper end of the piston head, when the rotating rudder is rotated to overcome the action force of the torsional spring and drive the piston head to rise, the liquid in the liquid reservoir enters the lower part of the piston chamber, and when the rotating rudder is released, the torsional spring generates an elastic action force on the piston head to rotate downward, so as to discharge the liquid from the one-way outlet valve.

[0012] Preferably, a high-pressure instrument for connecting the control pipeline is arranged between the driving module and the control module, and the high-pressure instrument is used to detect the hydraulic value in the control pipeline.

[0013] Preferably, the control module further comprises a low-voltage storage battery, and the low-voltage storage battery is connected to the pressure regulator, and the low-voltage storage battery is used to control the voltage stability of the pressure regulator. In actual operation, the electric circuit of the pressure regulator may have an instantaneous voltage acceleration condition, at which time the low-voltage storage battery can absorb the excessively high voltage to play a voltage stabilizing role.

[0014] Preferably, the execution module further comprises a limit switch, and the limit switch is connected to the pipeline valve, and the limit switch is used for the opening and closing limit of the pipeline valve. When the pipeline valve is switched to the position, the limit switch can automatically limit the pipeline valve and send a corresponding signal.

[0015] Preferably, a second branch parallel to the first branch is further included, and a pressure guiding valve and a fusible plug valve are sequentially arranged on the second branch, an oil inlet of the fusible plug valve is connected in parallel to a pressure end of the reset valve and an oil outlet of the pressure guiding valve, and an oil outlet of the fusible plug valve is connected to the liquid reservoir through the second branch. When the fusible plug valve does not melt, the second branch is in a disconnected state; when the fusible plug valve melts, the second branch is connected.

[0016] Preferably, an ESD electromagnetic valve and an SC electromagnetic valve in series with the pressure guiding valve are further arranged on the second branch, the ESD electromagnetic valve is an electromagnetic valve with a power-off emergency shutdown function, and the SC electromagnetic valve is a conventional controllable electromagnetic valve. The ESD electromagnetic valve is arranged to realize the power-off emergency shutdown function of the control pipeline to the pressure end of the reset valve, and the SC electromagnetic valve is used to control the opening and closing of the control pipeline and the pressure end of the reset valve.

[0017] A pump-started hydraulic control system comprises a pipeline and a plurality of hydraulic control units, and the pipeline is uniformly provided with a plurality of nodes along the length direction, and each node is correspondingly provided with a hydraulic control unit. The system does not need real-time manual detection and maintenance. If a node in the pipeline has a leakage or disconnection fault, the hydraulic pressure of the node will change instantaneously, and the hydraulic control unit will control the pipeline valve of the node to automatically disconnect the pipeline. Maintenance personnel can directly find the fault point and perform maintenance work.

[0018] Beneficial effect: the application only needs to control the starting of the manual pump, can automatically open the pipeline valve to automatically disconnect the pipeline through the control of the hydraulic change of the pipeline, realize the automatic receiving of the hydraulic signal in the pipeline, and when the hydraulic signal in the pipeline changes, the pipeline can be automatically disconnected through the pipeline valve. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The schematic diagram of the principle of the embodiment.

[0020] Figure 2 It is the sectional view of the variable displacement pump.

[0021] Reference signs: 1, hydraulic operation executor; 2, pipeline valve; 3, manual pump; 4, filter; 5, check valve; 6, high-pressure instrument; 7, pressure sensor; 8, pressure regulator; 9, low-pressure battery; 10, low-pressure instrument; 11, low-pressure safety valve; 12, liquid reservoir; 13, root valve; 14, connecting pipe; 15, pressure guiding valve; 16, reset valve; 17, limit switch; 18, fusible plug valve; 19, ESD solenoid valve; 20, SC solenoid valve; 21, high-pressure safety valve; 22, one-way inlet valve; 23, one-way outlet valve; 24, piston head; 25, screw rod; 26, rotary rudder; 27, pump body; 28, torsional spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings Figures 1-2 The application is further illustrated by the embodiment.

[0023] Embodiment: a pump starting hydraulic control system, comprising a pipeline and a plurality of hydraulic control units, the pipeline is uniformly provided with a plurality of nodes along the length direction, and the nodes are one-to-one corresponding to the installation of the corresponding hydraulic control unit.

[0024] A pump starting hydraulic control unit, comprising a control pipeline, a liquid reservoir 12, a driving module, an execution module, a control module and a detection and control module, both ends of the control pipeline are communicated with the liquid reservoir 12 to form a closed loop structure, and the control pipeline is used for circulating the liquid medium of the liquid reservoir 12.

[0025] The driving module comprises a manual pump 3, a filter 4 and a check valve 5 communicated in sequence, the manual pump 3, the filter 4 and the check valve 5 are all arranged on the control pipeline, and the manual pump 3 is communicated with the liquid reservoir 12. The hand pump is a common prior art and therefore is not described in detail, and the application takes the variable displacement pump as an example.

[0026] The manual pump 3 is a variable volume pump, which comprises a one-way inlet valve 22, a pump body 27 and a one-way outlet valve 23, the lower end of the one-way inlet valve 22 is communicated with the liquid reservoir 12, the upper end of the one-way inlet valve 22 is communicated with the lower end of a piston chamber arranged in the pump body 27, the lower end of the piston chamber is communicated with the one-way outlet valve 23 on one side, a rotating piston piece is arranged in the piston chamber and cooperates with the piston chamber to form a piston, the rotating piston piece comprises a piston head 24, a screw rod 25 and a rotating rudder 26 which are sequentially and fixedly connected from bottom to top, the piston head 24 cooperates with the piston chamber to form the piston, the screw rod 25 is threadedly connected with the upper end of the piston chamber which is provided with a threaded hole, the upper part of the screw rod 25 penetrates through the threaded hole and is fixedly connected with the lower end of the rotating rudder 26, the rotating rudder 26 is used for twisting the rotating direction of the screw rod 25, a torsional spring 28 is sleeved on the screw rod 25, the upper end of the torsional spring 28 is fixedly connected with the inner wall of the upper end of the piston chamber, and the lower end of the torsional spring 28 is fixedly connected with the upper end of the piston head 24, when the rotating rudder 26 rotates and drives the piston head 24 to rise by overcoming the action force of the torsional spring 28, the liquid in the liquid reservoir 12 enters the lower part of the piston chamber, when the rotating rudder 26 is released, the torsional spring 28 generates an elastic action force on the piston head 24 to make it rotate downward, and the liquid is discharged from the one-way outlet valve 23. The connection between the rotating rudder 26 and the screw rod 25 can also adopt a ratchet transmission connection mode.

[0027] The execution module comprises a hydraulic operation executor 1, a pipeline valve 2 and a limit switch 17, the hydraulic operation executor 1 is connected with a control pipeline, when the hydraulic pressure in the control pipeline reaches a set value, the hydraulic operation executor 1 starts the pipeline valve 2, and the pipeline valve 2 controls the opening and closing of a pipeline. The limit switch 17 is connected with the pipeline valve 2, and the limit switch 17 is used for limiting the opening and closing of the pipeline valve 2, when the pipeline valve 2 is opened or closed to a position, the limit switch 17 can automatically limit the pipeline valve 2 and send a corresponding signal.

[0028] The control module comprises a pressure sensor 7, a pressure regulator 8, a low-pressure instrument 10, a low-pressure safety valve 11 and a low-voltage storage battery 9 arranged on a control pipeline, the check valve 5, the pressure sensor 7, the pressure regulator 8, the low-pressure instrument 10, the low-pressure safety valve 11 and the liquid reservoir 12 are sequentially communicated, the pressure sensor 7 is used for detecting the hydraulic pressure in the control pipeline, the pressure regulator 8 is used for adjusting the hydraulic pressure value in the control pipeline, and the low-pressure instrument 10 is used for detecting and displaying the hydraulic pressure value in the control pipeline. The low-voltage storage battery 9 is connected with the pressure regulator 8, and the low-voltage storage battery 9 is used for controlling the voltage stability of the pressure regulator 8. In the actual operation process, the electric circuit of the pressure regulator 8 can have an instantaneous voltage speed-up condition, at this time, the low-voltage storage battery 9 can absorb the excessively high voltage and play a voltage stabilizing role.

[0029] The detection automatic control module comprises a root valve 13, a connecting pipe 14, a pressure guiding valve 15 and a reset valve 16, the root valve 13 is communicated with a pipe and the connecting pipe 14, the root valve 13 is used for controlling the communication or disconnection of the pipe and the connecting pipe 14, the pipe is connected with a pressure end of the pressure guiding valve 15 through the connecting pipe 14, an oil inlet of the pressure guiding valve 15 is communicated with a control pipeline, an oil outlet of the pressure guiding valve 15 is communicated with a pressure end of the reset valve 16, the reset valve 16 is connected in series on a first branch, two ends of the first branch are respectively communicated with the control pipeline and a liquid reservoir 12, and a communication point of the first branch and the control pipeline is located between a low-pressure safety valve 11 and a pressure regulator 8.

[0030] The high-pressure instrument 6 connected with the control pipeline is arranged between the driving module and the control module, and is used for detecting the hydraulic value in the control pipeline. The high-pressure instrument 6 and the low-pressure instrument 10 of the technical scheme detect different hydraulic values in the control pipeline respectively, so that the hydraulic value fluctuation of the control pipeline is avoided and the hydraulic value fluctuation of the control pipeline is not too large to be detected.

[0031] The second branch in parallel with the first branch is further arranged, the ESD electromagnetic valve 19, the SC electromagnetic valve 20, the pressure guiding valve 15 and the fusible plug valve 18 are sequentially connected in series on the second branch, the oil inlet of the fusible plug valve 18 is connected in parallel with the pressure end of the reset valve 16 and the oil outlet of the pressure guiding valve 15, and the oil outlet of the fusible plug valve 18 is communicated with the liquid reservoir 12 through the second branch, when the fusible plug valve 18 does not occur thermal fusion, the second branch is in a disconnected state, when the fusible plug valve 18 occurs thermal fusion, the second branch is communicated. The ESD electromagnetic valve 19 is an electromagnetic valve with power-off emergency shutdown function, the SC electromagnetic valve 20 is a conventional controllable electromagnetic valve, the power-off emergency shutdown function of the control pipeline to the pressure end of the reset valve 16 is realized by the ESD electromagnetic valve 19, and the SC electromagnetic valve 20 is used for controlling the opening and closing of the pipeline of the control pipeline and the pressure end of the reset valve 16.

[0032] As shown in Figure 1 The control pipeline of the application is sequentially provided with the manual pump 3, the filter 4, the check valve 5, the high-pressure instrument 6, the pressure sensor 7, the pressure regulator 8, the low-pressure instrument 10, the low-pressure safety valve 11, the liquid reservoir 12. The low-voltage storage battery 9 of the application is actually connected with the pressure regulator 8.

[0033] The first branch of the application is only provided with the reset valve 16, the second branch of the application is sequentially provided with the ESD electromagnetic valve 19, the SC electromagnetic valve 20, the pressure guiding valve 15 and the fusible plug valve 18 to the liquid reservoir 12. The third branch is communicated with the control pipeline and the pressure end of the hydraulic operation actuator 1.

[0034] The components in the application can be directly purchased from the market, such as the GO1002.0-SR4(CW) model of Emerson Company of USA for the hydraulic operating actuator 1, and the pipe valve 2 and the root valve 13 can adopt ball valves to achieve the corresponding purposes. The low-pressure instrument 10 and the high-pressure instrument 6 in the application are also directly purchased from the market. Therefore, no more details are described.

[0035] Figure 1 It can also be seen from the application that the high-pressure safety valve 21 is further provided, which is directly connected with the high-pressure instrument 6 and the liquid reservoir 12, and is used for high-pressure explosion prevention.

[0036] The operating principle is as follows: under normal conditions, the pipe valve 2 is in the off state, and the reset valve 16 is in the off state. At this time, the manual pump 3 is started to extract the liquid in the liquid reservoir 12. The liquid passes through the manual pump 3, the filter 4, the check valve 5, and passes through the pressure regulator 8 and the low-pressure instrument 10. Since the reset valve 16 is in the latching off state, the liquid can only enter the liquid reservoir 12 through the low-pressure safety valve 11, so that the control pipeline always has a certain hydraulic pressure. At this time, one branch in the control pipeline is connected with the pressure end of the hydraulic operating actuator 1, and the hydraulic operating actuator 1 provides corresponding hydraulic pressure. The hydraulic operating actuator 1 opens the pipe valve to control the communication of the pipeline, and the liquid in the pipeline is connected to the pressure guiding valve 15 through the connecting pipe 14. When the pressure in the pipeline is in the set value range, the pressure guiding valve 15 is connected with the control pipeline and the pressure end of the reset valve 16. The reset valve 16 maintains the off state of the first branch, the control pipeline hydraulic pressure is constant, and the hydraulic operating actuator 1 maintains the state of opening the pipeline of the pipe valve 2.

[0037] When the pressure in the pipeline is not in the set value range, the pressure guiding valve 15 is disconnected with the control pipeline and the pressure end of the reset valve 16. The reset valve 16 is connected with the first branch. Since the first branch avoids the relatively large resistance of the low-pressure safety valve 11, the liquid will directly enter the liquid reservoir 12 from the first branch. At this time, the hydraulic pressure of the control pipeline changes, and the hydraulic operating actuator 1 controls the pipe valve 2 to disconnect the pipeline.

[0038] In addition, when the reset valve 16 is switched to a manual switch or a pressure guiding valve 15 senses a pressure other than the set value, the first branch is also in a communication state, thereby affecting the hydraulic pressure of the control pipeline. When the ESD solenoid valve 19 is powered off or the fusible plug valve 18 is overheated, the second branch is in a communication state. The same as the principle of the first branch, when the second branch is in a communication state, the liquid will directly enter the reservoir 12 from the second branch because the low-pressure safety valve 11 with relatively high resistance is bypassed, at this time, the hydraulic pressure of the control pipeline changes, and the hydraulic operation executor 1 control pipeline valve 2 is disconnected from the pipeline. Thus, the function of automatically controlling the opening and closing of the pipeline valve 2 according to the change of the pipeline pressure is realized.

[0039] Obviously, the above embodiments of the present application are only examples for illustrating the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted, and the obvious changes or variations derived from the essential spirit of the present application still belong to the protection scope of the present application.

Claims

1. A pump-activated hydraulic control unit, comprising a control pipeline, a liquid reservoir (12), a driving module, an executing module, a control module and a detecting self-control module, two ends of the control pipeline being communicated with the liquid reservoir (12) to form a closed loop structure, the control pipeline being used for circulating liquid medium of the liquid reservoir (12), characterized in that: the driving module comprises a manual pump (3), a filter (4) and a check valve (5) communicated in sequence, the manual pump (3), the filter (4) and the check valve (5) are all arranged on the control pipeline, the manual pump (3) is communicated with the liquid reservoir (12), and the manual pump (3) is a hand-pressing pump or a variable-volume pump with a manually controlled piston rotating; the executing module comprises a hydraulic operating actuator (1) and a pipeline valve (2), the hydraulic operating actuator (1) is connected with the control pipeline, when the hydraulic pressure in the control pipeline reaches a set value, the hydraulic operating actuator (1) activates the pipeline valve (2), the pipeline valve (2) controls opening and closing of the pipeline, the executing module further comprises a limit switch (17), the limit switch (17) is connected with the pipeline valve (2), the limit switch (17) is used for limiting opening and closing of the pipeline valve (2), when the pipeline valve (2) is switched to a position, the limit switch (17) can automatically limit the pipeline valve (2) and send a corresponding signal; the control module comprises a pressure sensor (7), a pressure regulator (8), a low-pressure instrument (10) and a low-pressure safety valve (11) arranged on the control pipeline, the check valve (5), the pressure sensor (7), the pressure regulator (8), the low-pressure instrument (10), the low-pressure safety valve (11) and the liquid reservoir (12) are communicated in sequence, the pressure sensor (7) is used for detecting the hydraulic pressure in the control pipeline, the pressure regulator (8) is used for adjusting the hydraulic pressure value in the control pipeline, and the low-pressure instrument (10) is used for detecting and displaying the hydraulic pressure value in the control pipeline; the detecting self-control module comprises a root valve (13), a connecting pipe (14), a pressure guiding valve (15) and a reset valve (16), the root valve (13) is communicated with the pipeline and the connecting pipe (14), the root valve (13) is used for controlling communication or disconnection of the pipeline and the connecting pipe (14), the pipeline is connected with a pressure end of the pressure guiding valve (15) through the connecting pipe (14), an oil inlet of the pressure guiding valve (15) is communicated with the control pipeline, an oil outlet of the pressure guiding valve (15) is communicated with a pressure end of the reset valve (16), the reset valve (16) is connected in series on a first branch, two ends of the first branch are communicated with the control pipeline and the liquid reservoir (12) respectively, and a communication point of the first branch and the control pipeline is located between the low-pressure safety valve (11) and the pressure regulator (8). ​ When the pressure in the pipeline is in the set value range, the pressure guide valve (15) connects the control pipeline with the pressure end of the reset valve (16), the reset valve (16) disconnects the first branch, the hydraulic pressure of the control pipeline is constant, the hydraulic actuator (1) controls the pipeline valve (2) to open the pipeline; when the pressure in the pipeline is not in the set value range, the pressure guide valve (15) disconnects the control pipeline with the pressure end of the reset valve (16), the reset valve (16) connects the first branch, the hydraulic pressure of the control pipeline changes, the hydraulic actuator (1) controls the pipeline valve (2) to disconnect the pipeline. The second branch in parallel with the first branch is further included, the pressure guide valve (15) and the fusible plug valve (18) are sequentially arranged on the second branch, the oil inlet of the fusible plug valve (18) is connected in parallel with the pressure end of the reset valve (16) and the oil outlet of the pressure guide valve (15), the oil outlet of the fusible plug valve (18) is connected with the liquid reservoir (12) through the second branch, when the fusible plug valve (18) does not melt, the second branch is in a disconnected state; when the fusible plug valve (18) melts, the second branch is connected, the ESD electromagnetic valve (19) and the SC electromagnetic valve (20) in series with the pressure guide valve (15) are further arranged on the second branch, the ESD electromagnetic valve (19) is an electromagnetic valve with power-off emergency shutdown function, the SC electromagnetic valve (20) is a conventional controllable electromagnetic valve, the power-off emergency shutdown function of the control pipeline to the pressure end of the reset valve (16) is realized through the ESD electromagnetic valve (19), and the SC electromagnetic valve (20) is used for controlling the opening and closing of the pipeline of the control pipeline and the pressure end of the reset valve (16).

2. A pump primed hydraulic control unit according to claim 1, characterised in that: The manual pump (3) is a variable volume pump, the variable volume pump includes a one-way inlet valve (22), a pump body (27) and a one-way outlet valve (23), the lower end of the one-way inlet valve (22) is connected with the liquid reservoir (12), the upper end of the one-way inlet valve (22) is connected with the lower end of a piston chamber arranged in the pump body (27), one side of the lower end of the piston chamber is connected with the one-way outlet valve (23), a rotating piston piece matched with the piston chamber is arranged in the piston chamber, the rotating piston piece includes a piston head (24), a screw rod (25) and a rotating rudder (26) which are sequentially and fixedly connected from bottom to top, the piston head (24) is matched with the piston chamber, the screw rod (25) is threadedly connected with the upper end of the piston chamber, the lower end of the rotating rudder (26) is fixedly connected with the screw rod (25) through the threaded hole, the rotating rudder (26) is used for twisting the rotating direction of the screw rod (25), a torsional spring (28) is sleeved on the screw rod (25), the upper end of the torsional spring (28) is fixedly connected with the inner wall of the upper end of the piston chamber, and the lower end of the torsional spring (28) is fixedly connected with the upper end of the piston head (24), when the rotating rudder (26) rotates to overcome the action force of the torsional spring (28) and drives the piston head (24) to rise, the liquid in the liquid reservoir (12) enters the lower part of the piston chamber, and when the rotating rudder (26) is released, the torsional spring (28) generates an elastic action force on the piston head (24) to rotate downward, so as to discharge the liquid from the one-way outlet valve (23).

3. A pump primed hydraulic control unit according to claim 1, characterised in that: The high-pressure instrument (6) connected with the control pipeline is arranged between the driving module and the control module, and is used for detecting the hydraulic pressure value in the control pipeline.

4. A pump primed hydraulic control unit according to claim 1, characterised in that: The control module further comprises a low-voltage battery (9) connected with the pressure regulator (8), and the low-voltage battery (9) is used for controlling the voltage stability of the pressure regulator (8).

5. A pump-activated hydraulic control system comprising a pipeline and a plurality of hydraulic control units according to any one of claims 1-4, wherein the pipeline is uniformly provided with a plurality of nodes along the length direction, and each node is correspondingly provided with a hydraulic control unit.

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