Electric control high-pressure gun and system

Abstract

The invention discloses an electrically-controlled high-pressure gun and a system. The electrically-controlled high-pressure gun comprises an electromagnetic valve, a manual switch, an electromagnetic induction switch and a single chip microcomputer, wherein the electromagnetic valve is used for controlling output or stopping output of high-pressure water; one end of the manual switch is grounded, and the other end is connected with a first input end of the singlechip; the first output end of the single-chip microcomputer is connected with the control end of the normally-open electromagnetic relay, a power binding post of the electromagnetic relay is connected with VCC, and a load end binding post of the electromagnetic relay is connected with an electromagnetic valve coil in series and grounded. The first input end of the single-chip microcomputer receives a jump signal of the manual switch and drives the first output end of the single-chip microcomputer to close an electromagnetic relay conduction starting signal. According to the electric control high-pressure gun, jumping signals of the single-chip microcomputer are input through resetting of the manual switch, and therefore the electromagnetic valve for driving output of high-pressure water is started to be opened or closed. The situation that the gun buckle handle of the manual switch is opened all the time after power-on, so that the handheld electric control high-pressure gun is passively started, and the safety of an operator and surrounding personnel is threatened is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of ship cleaning and maintenance, and in particular to an electrically controlled high-voltage gun and a system. Background Art

[0002] Hand-held gun operation has become one of the most dangerous jobs in the ship repair industry because of its high injection pressure, close distance between the injection nozzle and the operator (less than 1.5 meters), and the huge reaction force during injection is all transmitted to the operator's torso.

[0003] At present, all the hand-held guns used on Mazhou Island are overflow type, which are heavy and have large resistance on the gun handle. Although the existing hand-held guns are equipped with anti-drop ropes and automatic release devices, which reduce the pressure on operators to a certain extent, in actual operations, there are still many workers who use hand-held guns for convenience and violate operating procedures - directly tying the gun handle, and not using the remote control to remotely control the start and stop of the high-pressure water machine, but placing the remote control at the person watching the high-pressure water machine. At this time, once the high-pressure water machine stops, the hand-held gun operator forgets to reset the gun handle (commonly known as "safety not closed"), and when the high-pressure water machine is turned on again, the hand-held gun will be "passively started", threatening the safety of the operator and surrounding personnel.

[0004] Due to the scattered operation points, high operation frequency and complex operation environment of hand-held guns in ship repair operations, we have developed a new type of electronically controlled high-voltage gun system to further improve the inherent safety of hand-held gun operations based on the use of many organizational means to control the safety of hand-held gun operations. Summary of the invention

[0005] The present invention provides an electrically controlled high-voltage gun and a system, which can prevent a hand-held gun from being passively started and improve the safety of hand-held gun operation.

[0006] In a first aspect, the present invention provides an electrically controlled high-pressure gun, which includes a solenoid valve for controlling the output or stopping the output of high-pressure water, a manual switch, an electromagnetic induction switch and a single-chip microcomputer; one end of the manual switch is grounded, and the other end is connected to a first input end of the single-chip microcomputer; the first output end of the single-chip microcomputer is connected to a control end of a normally open electromagnetic relay, the power terminal of the electromagnetic relay is connected to VCC, and the load terminal of the electromagnetic relay is connected in series to a solenoid valve coil and grounded; the first input end of the single-chip microcomputer receives a jump signal of the manual switch, and drives the first output end of the single-chip microcomputer to close the electromagnetic relay to conduct a start signal.

[0007] Optionally, the jump signal is a rising edge signal or a falling edge signal.

[0008] In a second aspect, a single electric-controlled high-voltage gun system is characterized by comprising the electric-controlled high-voltage gun described above, which is sequentially connected to a remote controller, a control cabinet and a high-voltage pump control system;

[0009] The remote controller includes a pressurization or pressure relief switch and a transmitter; the transmitter is used to send a pressurization signal or a pressure relief signal to the control cabinet, and a signal to turn on or off the electromagnetic induction switch of the electric high-voltage gun;

[0010] The control cabinet includes a receiver and a programmable logic controller. According to the transmission signal received by the receiver from the transmitter, when the electromagnetic induction switch of the electric-controlled high-pressure gun, the pressurization switch start signal of the remote controller, and the power supply signal of the high-pressure pump unit of the high-pressure water machine are received at the same time, the programmable logic controller processes and determines the output pressurization signal;

[0011] The high-pressure pump control system receives the pressurization signal from the programmable logic controller to realize the pressurization signal triggering.

[0012] Furthermore, the transmitter is also used to send signals to the control cabinet indicating that the emergency stop button is pressed, the wireless signal is lost, the remote control is exhausted, or the power switch is turned off. When any of these situations occurs, the programmable logic controller will reset the pressure increase and relief signal of the high-pressure pump control system to relieve the pressure in the system.

[0013] In a third aspect, an electric-controlled high-voltage gun system comprises a plurality of said electric-controlled high-voltage guns and a plurality of remote controllers, wherein the plugs of the electric-controlled high-voltage guns are connected to the respective corresponding remote controllers, and the plurality of said remote controllers are connected to the same control cabinet via wire or wireless, and the control cabinet is electrically connected to the high-voltage pump control system;

[0014] The remote controller includes a pressurization or pressure relief switch and a transmitter; the transmitter is used to send a pressurization signal or a pressure relief signal to the control cabinet, and a signal to turn on or off the electromagnetic induction switch of the electric high-voltage gun;

[0015] The control cabinet includes a receiver and a programmable logic controller. According to the transmission signal received by the receiver from the transmitter, when the receiver simultaneously receives the conduction start signal of the electromagnetic induction switch of the electric-controlled high-pressure gun, the pressurization switch start signal of the remote controller, and the power supply signal of the high-pressure pump unit of the high-pressure water machine, the programmable logic controller processes and determines the output pressurization signal;

[0016] Several electric high-voltage guns start the electromagnetic induction switch at the same time, and at this time each remote controller sends the pressurization switch on operation status to the receiver, which is processed by the programmable logic controller and then transmitted to the high-voltage pump control system to trigger the pressurization signal.

[0017] After selecting an electric-controlled high-pressure gun for resetting, the remote controller sends the operating status to the receiver, and the receiver transmits the corresponding contact signal to the programmable logic controller, which is then processed and transmitted to the high-pressure pump control system to trigger the pressure relief signal.

[0018] Beneficial Effects

[0019] The electric-controlled high-pressure gun of the present invention completes the input of the single-chip microcomputer jump signal by resetting the manual switch, thereby starting to drive the electromagnetic valve that outputs high-pressure water to open or close. After power-on, it is avoided that the gun handle of the manual switch is always open, causing the handheld electric-controlled high-pressure gun to be "passively started", threatening the safety of the operator and surrounding personnel. In addition, the electric-controlled high-pressure gun system can only start the electric-controlled handheld gun to output high-pressure water when the three conditions of the power supply at the high-pressure water machine end is turned on, the pressure switch of the remote control at the operator end is turned on, and the handle of the electric-controlled handheld gun is turned on are met, which further improves the safety of the handheld electric-controlled high-pressure gun and avoids the "passive start" of the handheld electric-controlled high-pressure gun, threatening the safety of the operator and surrounding personnel. The system of multiple electric-controlled high-pressure guns can trigger the pressure signal only when multiple electric-controlled high-pressure guns are started at the same time. The safety of the handheld electric-controlled high-pressure gun is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a single electric-controlled high-voltage gun provided in Example 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the circuit structure of a single electric control high-voltage gun provided in Example 1 of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a single electric control high-voltage gun system provided by Embodiment 2 of the present invention;

[0023] Figure 4 is the wiring electronic circuit diagram of the receiver of the present invention;

[0024] Figure 5 It is a structural schematic diagram of a dual-electrically controlled high-voltage gun system provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1 and Figure 2 , Embodiment 1 of the present invention, an electrically controlled high-pressure gun, comprises a solenoid valve 1 for controlling the output or stopping the output of high-pressure water, a manual switch K, an electromagnetic induction switch and a single-chip computer 2. Among them, the electromagnetic induction switch is a normally open electromagnetic relay KJ. One end of the manual switch K is grounded, and the other end is connected to the first input end I1 of the single-chip computer; the first output end O1 of the single-chip computer is connected to the control end of the normally open electromagnetic relay KJ, the power terminal of the electromagnetic relay KJ is connected to VCC, and the load terminal of the electromagnetic relay KJ is connected in series with the solenoid valve coil and grounded. The first input end of the single-chip computer receives the jump signal of the manual switch, and drives the first output end of the single-chip computer to close the electromagnetic relay conduction signal. The jump signal can be a rising edge signal or a falling edge signal.

[0029] The port state of the single-chip microcomputer is 0 or 1, which can be customized. In this embodiment, the gun handle 10 of the electric high-voltage gun is the manual switch K. The jump signal takes the rising edge signal as an example. When the manual switch K is closed, the first input terminal I1 of the single-chip microcomputer is in the start state 1. When the manual switch K is disconnected, the first input terminal I1 of the single-chip microcomputer is in the reset state 0. The electric high-voltage gun is in the state from power failure to power on. If the manual switch of the high-voltage gun, that is, the gun handle is tied and has been in the open state, then the initial state of the first input terminal I1 of the single-chip microcomputer is 1, and the single-chip microcomputer fails to recognize the rising edge trigger signal of the first input terminal I1 of the single-chip microcomputer changing from 0 to 1, thereby controlling the first output terminal O1 of the single-chip microcomputer to be in the 0 state, that is, stopping the control signal output to the control end of the normally open electromagnetic relay KJ to open the valve body of the electromagnetic valve so that the high-pressure water of the high-voltage gun is output. Only when the manual switch is reset and the MCU recognizes the rising edge trigger signal of the first input terminal I1 of the MCU changing from 0 to 1, can the first output terminal O1 change from the reset state 0 to the output drive state 1, so that the control end of the electromagnetic relay KJ is closed, the electromagnetic valve is opened, and the electric-controlled high-pressure gun outputs high-pressure water. This can prevent the operator from forgetting to close the gun handle, resulting in the handheld electric-controlled high-pressure gun being "passively started", threatening the safety of the operator and surrounding personnel.

[0030] See also Figure 3 , is a schematic diagram of a single electric-controlled high-pressure gun system provided in Example 2 of the present invention. This embodiment is based on Example 1, and the single electric-controlled high-pressure gun system includes an electric-controlled high-pressure gun 10, a remote controller 20, a control cabinet 30, and a high-pressure water machine 40 connected in sequence.

[0031] The second output terminal O2 of the single-chip microcomputer is connected to the control circuit of the remote controller, which includes a transmitter for communicating with the control cabinet, sending a pressurization signal or a pressure relief signal to the control cabinet, and a signal for turning on or off the electromagnetic induction switch of the electric control high-voltage gun. A manual pressurization and pressure relief manual switch is set on the remote controller.

[0032] The electric control cabinet includes a receiver and a programmable logic controller (PLC). The receiver is used to receive the signal from the transmitter, and the receiver transmits the corresponding relay contact signal to the logic control unit, which is then processed by the logic control unit and transmitted to the high-pressure pump control system built into the high-pressure water machine to trigger the pressure relief signal or the pressurization signal.

[0033] The electric high-pressure gun is connected to the remote control by wire; the remote control and the electric control cabinet can be connected by wire or wirelessly to control the switches of each relay of the receiver; the electric control cabinet is connected to the high-pressure water machine by wire. This embodiment takes the wired connection between the remote control and the electric control cabinet as an example, see Figure 4 When the receiver receives the high level of the remote controller pressurization 1 switch sent by the cable, the corresponding normally closed relay switch K1 is closed; when the receiver receives the high level of the pressurization 2 electromagnetic switch of the electric high-voltage gun sent by the cable, the corresponding normally closed relay switch K1' is closed; when K1 and K1' are both in the pressurization state, they are processed by the logic control unit of the PLC and then transmitted to the high-pressure pump control system to trigger the pressurization signal. When K1 and K1' are in the selective pressurization state, pressurization fails.

[0034] The remote control and the electric control cabinet can be connected by wire, which is suitable for closed spaces, such as closed cabins or areas with unstable signals; the remote control and the electric control cabinet can also be connected wirelessly, which is suitable for open areas.

[0035] The receiver receives the signal of the electromagnetic valve opening and the remote control starting pressurization signal, and after being processed by the logic control unit, transmits the pressurization signal to the high-pressure pump control system. The high-pressure pump control system in the high-pressure water machine controls the high-pressure pump unit to start according to the pressurization signal, and the high-pressure water is output by the electric-controlled high-pressure gun through the pipeline. In this embodiment, the electric-controlled handheld gun can only be turned on to output high-pressure water when the three conditions of the high-pressure water machine end power supply is turned on, the remote control pressurization switch on the operator end is turned on, and the handle of the electric-controlled handheld gun is turned on are met, which further improves the safety of the handheld electric-controlled high-pressure gun and avoids the "passive start" of the handheld electric-controlled high-pressure gun, which threatens the safety of the operator and surrounding personnel.

[0036] See also Figure 5, a schematic diagram of the structure of a dual-electrically controlled high-voltage gun system provided in Example 3 of the present invention. This embodiment is based on Example 1, and the difference is that the dual-electrically controlled high-voltage gun system includes two electrically controlled high-voltage guns A, B and two remote controllers A, B. The two electrically controlled high-voltage guns A, B are plugged into their respective remote controllers A, B, and the remote controllers A and B are connected to the same control cabinet receiver via wire or wireless.

[0037] The triggers of two electric high-pressure guns are pulled at the same time to start the electromagnetic induction switch. At this time, the remote control sends the pressurization switch on operation status to the receiver. The receiver transmits the corresponding two sets of relay contact signals to the logic control unit. After processing by the logic control unit, it is transmitted to the high-pressure pump control system to trigger the pressurization signal.

[0038] After the trigger of any electric high-pressure gun is reset, the remote control will send the operating status to the receiver, and the receiver will transmit the corresponding relay contact signal to the logic control unit, which will be processed by the logic control unit and then transmitted to the high-pressure pump control system to trigger the pressure relief signal.

[0039] In this embodiment, in a dual-electrically controlled high-pressure gun system, only when the triggers of the two electric-controlled high-pressure guns are pulled at the same time can the electric-controlled high-pressure guns be started to output high-pressure water, so as to prevent the operator A from working and the operator B from starting the electric-controlled high-pressure gun at a later time without operating the pressurization button, and then starting the high-pressure gun to output high-pressure water, threatening the safety of the operator and the surrounding personnel. After the trigger of any electric-controlled high-pressure gun is reset, the high-pressure pump unit in the high-pressure water machine is depressurized and stops outputting high-pressure water. The safety of the operators of the two electric-controlled high-pressure guns and the surrounding personnel is improved.

[0040] Regardless of the control mode and control state of the above-mentioned pressure increase and release control, when any of the following situations occurs: the emergency stop button of the remote control is pressed, the wireless signal is lost, the remote control battery is exhausted, or the power switch is turned off, the logic control unit will reset the pressure increase and release signal of the high-pressure pump control system to release the pressure in the system.

[0041] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An electrically controlled high-voltage gun, characterized in that: It includes a solenoid valve, a manual switch, an electromagnetic induction switch and a single-chip microcomputer for controlling the output or stopping the output of high-pressure water; one end of the manual switch is grounded, and the other end is connected to the first input end of the single-chip microcomputer; the first output end of the single-chip microcomputer is connected to the control end of a normally open electromagnetic relay, the power terminal of the electromagnetic relay is connected to VCC, and the load terminal of the electromagnetic relay is connected in series to the solenoid valve coil and grounded; the first input end of the single-chip microcomputer receives a jump signal of the manual switch, and drives the first output end of the single-chip microcomputer to close the electromagnetic relay to conduct a start signal.

2. The electrically controlled high-voltage gun according to claim 1, characterized in that: The jump signal is a rising edge signal or a falling edge signal.

3. A single electric control high voltage gun system, characterized in that: It comprises the electrically controlled high-pressure gun as claimed in claim 1, which is sequentially connected to a remote controller, a control cabinet and a high-pressure pump control system; The remote controller includes a pressurization or pressure relief switch and a transmitter; the transmitter is used to send a pressurization signal or a pressure relief signal to the control cabinet, and a signal to turn on or off the electromagnetic induction switch of the electric high-voltage gun; The control cabinet includes a receiver and a programmable logic controller. According to the transmission signal received by the receiver from the transmitter, when the electromagnetic induction switch of the electric-controlled high-pressure gun, the pressurization switch start signal of the remote controller, and the power supply signal of the high-pressure pump unit of the high-pressure water machine are received at the same time, the programmable logic controller processes and determines the output pressurization signal; The high-pressure pump control system receives the pressurization signal from the programmable logic controller to realize the pressurization signal triggering.

4. The single electric control high-voltage gun system according to claim 3, characterized in that: The transmitter is also used to send signals to the control cabinet indicating that the emergency stop button is pressed, the wireless signal is lost, the remote control is exhausted, or the power switch is turned off. When any of these situations occurs, the programmable logic controller will reset the pressure increase and relief signal of the high-pressure pump control system to relieve the pressure in the system.

5. An electrically controlled high-voltage gun system, characterized in that: It comprises a plurality of electrically controlled high-voltage guns as claimed in claim 1 and a plurality of remote controllers, wherein the plugs of the electrically controlled high-voltage guns are connected to the corresponding remote controllers, and the plurality of remote controllers are connected to the same control cabinet via wires or wirelessly, and the control cabinet is electrically connected to the high-voltage pump control system; The remote control includes a pressure-adding or pressure-releasing switch and a transmitter; The transmitter is used to send a pressure increase signal or a pressure relief signal to the control cabinet, and a signal to turn on or off the electromagnetic induction switch of the electric high-voltage gun; The control cabinet includes a receiver and a programmable logic controller. According to the transmission signal received by the receiver from the transmitter, when the receiver simultaneously receives the conduction start signal of the electromagnetic induction switch of the electric-controlled high-pressure gun, the pressurization switch start signal of the remote controller, and the power supply signal of the high-pressure pump unit of the high-pressure water machine, the programmable logic controller processes and determines the output pressurization signal; Several electric high-voltage guns start the electromagnetic induction switch at the same time, and at this time each remote controller sends the pressurization switch on operation status to the receiver, which is processed by the programmable logic controller and then transmitted to the high-voltage pump control system to trigger the pressurization signal.

6. The electrically controlled high-voltage gun system according to claim 5, characterized in that: After selecting an electric-controlled high-pressure gun for resetting, the remote controller sends the operating status to the receiver, and the receiver transmits the corresponding contact signal to the programmable logic controller, which is then processed and transmitted to the high-pressure pump control system to trigger the pressure relief signal.

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