JP2020073254A - Fluid discharge device and fluid discharge method - Google Patents

Abstract

To discharge a fluid selectively by two kinds of pumps.SOLUTION: A fluid discharge device 1 includes a hose 40 in which a fluid passes, a first pump 10 which is connected to one end of the hose 40 and pressurizes and delivers the fluid sucked from an external to the hose 40, and a second pump 20 which is connected to the other end of the hose 40 and pressurizes the fluid supplied from the hose 40 and discharges to the external. The fluid discharge device 1 discharges the fluid from one of the first pump 10 and the second pump 20 when a switching device 50 switches a path of the fluid.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fluid discharge device and a fluid discharge method.

  BACKGROUND ART When performing construction such as filling and painting, a device that discharges a fluid using a pump driven by human power or electric power is widely used. In the filling work, an operator fills the gaps and cracks with a filling material (water blocking material, waterproofing material, sealing material) which is a fluid using a device. In painting work, an operator sprays a fluid paint (painting material) on the surface of an object to be coated by using an apparatus.

  For example, Patent Document 1 describes a spraying device that supplies a liquid, which is pressurized by a pump driven by the power of an electric motor, to a handheld device via a hose. The operator can open the spray valve and spray the liquid by operating the trigger of the handheld device.

JP, 2014-208349, A

  By the way, there are a high-pressure pump and a low-pressure pump as a pump for discharging a fluid, and an operator can use these pumps properly according to the situation. Generally, a high-pressure pump has a small discharge amount once, and a low-pressure pump has a large discharge amount once. Therefore, for example, an operator uses a high-pressure pump when filling a fluid in a narrow space and a low-pressure pump when filling a fluid in a wide space.

  However, depending on the situation, it may not be possible to determine whether it is appropriate to use a high-pressure pump or a low-pressure pump because the size of the space is unknown until the filling is started. In some cases, it may be efficient to use a high-pressure pump to perform filling halfway and then use a low-pressure pump to perform filling. In these situations, there is a problem that it takes time to prepare both two types of pumps and it takes time to switch the pumps to be used.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a fluid discharge device and a fluid discharge method capable of selectively discharging a fluid by two types of pumps.

  A fluid discharge device according to a first aspect of the present invention includes a pipe through which a fluid is passed and a first pump which is connected to one end of the pipe and pressurizes the fluid sucked from the outside to deliver the fluid to the pipe. And a second pump that is connected to the other end of the pipe and pressurizes the fluid supplied from the pipe to discharge the fluid to the outside.

  The first pump may be an electrically driven pump.

  A sensor that measures the pressure required to discharge the fluid to the outside may be provided, and a control unit that controls the drive of the first pump based on the pressure measured by the sensor may be further included.

  After the second pump is driven, it may further include a control unit that performs control to drive the first pump when a predetermined condition is satisfied.

  The second pump may include a tank that stores the fluid, and may discharge the fluid in the tank to the outside.

  Between a first path for discharging the fluid discharged from the first pump to the pipe to the outside and a second path for transferring the fluid discharged from the first pump to the pipe to the tank. Then, a switching unit that switches the path of the fluid may be further included.

  A controller that controls the switching unit to switch the path of the fluid from the first path to the second path when the amount of the fluid in the tank is less than or equal to a predetermined value or less than a predetermined value. May be further included.

  The second pump may be a pump driven by an external force.

  The second pump pressurizes and discharges the fluid discharged from the first pump to the pipe to the outside when the external force is applied, and when the external force is not applied, The fluid discharged from the first pump to the pipe may be discharged to the outside without pressurizing.

  The second pump may be capable of discharging the fluid at a pressure higher than that of the first pump.

  The first pump may be configured to be attachable to a wall surface of a container holding the fluid, and may deliver the fluid sucked from the container to the pipe.

  The fluid discharge device includes a sensor that measures at least one of the amount of the fluid in a container in which the first pump is mounted and the pressure at which the first pump delivers the fluid to the pipe. It may further have a notification unit for notifying a value measured by the sensor.

  A fluid discharge method according to a second aspect of the present invention includes a pipe through which a fluid is passed, a first pump connected to one end of the pipe, and a second pump connected to the other end of the pipe. A fluid discharging method using a fluid discharging device having: a first step in which the first pump pressurizes the fluid sucked from the outside and sends the fluid to the pipe; A second step of pressurizing and discharging the fluid supplied from a pipe to the outside, and by performing at least one of the first step and the second step, the fluid is discharged from the fluid discharging device. Discharge the fluid to the outside.

  After performing the second step, the first step may be performed when a predetermined condition is satisfied.

  The first pump may further include a third step of transferring the fluid sucked from the outside to a tank included in the second pump via the pipe.

  According to the present invention, there is an effect that the fluid can be selectively discharged by two types of pumps.

It is an external view of the fluid discharge device which concerns on this embodiment. It is a schematic diagram of the fluid discharge device which concerns on this embodiment. It is a block diagram of the fluid discharge device concerning this embodiment. It is a figure which shows the flowchart of the fluid discharge method which concerns on this embodiment. It is a block diagram of the fluid discharge device concerning the 1st modification. It is a schematic diagram of the fluid discharge apparatus which concerns on a 2nd modification.

[Outline of Fluid Discharge Device 1]
FIG. 1 is an external view of a fluid discharge device 1 according to this embodiment. In FIG. 1, the internal structure of the member is represented by a broken line. The fluid discharge device 1 includes a first pump 10, a second pump 20, a controller 30, a hose 40, and a switching device 50.

  The hose 40 is a tube having a cavity through which a fluid passes and having openings at one end and the other end, respectively. The hose 40 is made of a deformable material such as vinyl chloride, silicone rubber or natural rubber.

  The first pump 10 is a pump driven by electricity (that is, an electric pump), and sucks a fluid by pressurizing it, pressurizing it, and delivering it. The first pump 10 has a battery or is connected to a power source by an electric cable to be supplied with electric power and driven. The first pump 10 has a control unit (not shown) that electrically controls each unit of the fluid discharge device 1.

  The first pump 10 can be attached to the fluid container A that holds the fluid, and is connected to one end of the hose 40. The fluid container A is a pail can made of, for example, metal or resin. The first pump 10 has a suction pipe 11 that is inserted into the fluid container A, and sucks the fluid through the suction pipe 11 and delivers it to the hose 40.

  The first pump 10 has a lid-shaped body 12 that can be fixed to the wall surface of the fluid container A. The lid 12 is made of metal or resin and has a shape that covers the opening of the fluid container A. In order to enhance the airtightness of the fluid container A, the lid 12 preferably has a seal member (for example, packing) made of resin or the like at a contact portion with the fluid container A. By sealing the fluid container A with the lid-shaped body 12 in the mounted state of the first pump 10, it is possible to suppress deterioration of the fluid container due to contact with air and leakage to the outside of the fluid container A.

  The switching device 50 is a switching unit that switches the path (flow path) of the fluid discharged from the first pump 10 to the hose 40. In the present embodiment, the switching device 50 is provided inside the second pump 20, but it may be provided outside the second pump 20.

  The second pump 20 is a pump that is driven by an external force (that is, a manual pump), and sucks the fluid by pressurizing it, pressurizing it, and delivering it. The second pump 20 is preferably capable of discharging the fluid at a pressure higher than that of the first pump 10. As a result, the fluid can be filled by the second manual pump even in a space requiring a high pressure such that the fluid cannot be filled by the first electric pump 10.

  The second pump 20 is connected to the other end of the hose 40. The second pump 20 has a tank 21 and a lever 22. The tank 21 is a container for storing the fluid transferred from the first pump 10 via the hose 40. In the present embodiment, the tank 21 is provided inside the housing of the second pump 20, but not limited to this, it may be provided outside the second pump 20.

  The second pump 20 is driven by the user applying an external force to the lever 22, sucks the fluid from the tank 21 and discharges it to the outside through the discharge port 60 (including spraying, filling, etc.).

  The controller 30 is an input device that is provided on the wall surface of the second pump 20 and that accepts the setting input by the user. The controller 30 includes various operation units that receive input of settings relating to the operation of the first pump 10 and the switching device 50. Since the user holds the second pump 20 by hand, providing the controller 30 on the second pump 20 facilitates the operation by the user. The controller 30 is not limited to being provided on the second pump 20, and may be provided independently of the second pump 20 or may be provided on the first pump 10.

[Description of Operation of Fluid Discharge Device 1]
FIG. 2 is a schematic diagram of the fluid discharge device 1 according to the present embodiment. In FIG. 2, the direction in which the fluid mainly flows is indicated by an arrow. The first pump 10 sucks the fluid from the fluid container A (that is, the outside of the fluid discharge device 1) and sends it to the hose 40. A switching device 50 is connected to the end of the hose 40 opposite to the first pump 10.

  The switching device 50 switches the path of the fluid passing through the hose 40 between a first path 41 communicating with the discharge port 60 and a second path 42 communicating with the tank 21 of the second pump 20. The switching device 50 has a valve (valve) for switching the path of the fluid. The switching device 50 may electrically switch the path by a control unit of the first pump 10 described later with reference to FIG. 3, or may manually switch the path by a user operation. The first path 41 and the second path 42 are pipes similar to the hose 40, for example.

  A discharge port 60 is connected to an end of the first path 41 opposite to the switching device 50. Therefore, in the state where the switching device 50 has switched to the first path 41, the first pump 10 discharges the fluid from the discharge port 60 via the hose 40 and the first path 41.

  The tank 21 of the second pump 20 is connected to the end of the second path 42 opposite to the switching device 50. Therefore, in a state where the switching device 50 has switched to the second path 42, the first pump 10 transfers the fluid to the tank 21 via the hose 40 and the second path 42. The second pump 20 sucks the fluid from the tank 21 and discharges it from the discharge port 60. A tube similar to the hose 40 may be provided between the second pump 20 and the discharge port 60.

  The controller 30 includes an operation setting unit 31, an adjustment setting unit 32, and a switching setting unit 33. The operation setting unit 31 sets the ON state in which the first pump 10 operates, the OFF state in which the first pump 10 stops, and the automatic state in which the first pump 10 automatically operates or stops. Accept. The adjustment setting unit 32 receives the setting of the pressure (or the discharge amount per unit time) at which the first pump 10 discharges the fluid. In the switching setting unit 33, the switching device 50 receives the setting of the path of the fluid (the first path 41 or the second path 42). As the operation setting unit 31, the adjustment setting unit 32, and the switching setting unit 33, any switch such as a toggle switch, a slider switch, a push button, and a dial can be used. The controller 30 transmits a signal indicating the input content to the control unit of the first pump 10.

  In the present embodiment, the switching setting unit 33 electrically sets the path of the switching device 50, but may be an operation unit such as a lever or a handle that directly switches the valve of the switching device 50. In this case, the switching setting unit 33 is provided on the switching device 50 and does not need to be connected to the control unit.

  The tank 21 is provided with a remaining amount sensor 70 that measures the amount of fluid inside. The discharge port 60 is provided with a pressure sensor 80 that measures the pressure of the fluid discharged from the discharge port 60 to the outside. The remaining amount sensor 70 and the pressure sensor 80 send a signal indicating the measurement content to the control unit of the first pump 10.

  The control unit of the first pump 10 is connected to the controller 30, the switching device 50, the remaining amount sensor 70, and the pressure sensor 80 by the conducting wire 13. The control unit of the first pump 10 receives signals indicating the input content and the measurement content from the controller 30, the remaining amount sensor 70, and the pressure sensor 80 via the lead wire 13, and also causes the switching device 50 to switch the path. Send a signal.

[Configuration of Fluid Discharge Device 1]
FIG. 3 is a block diagram of the fluid discharge device 1 according to the present embodiment. In FIG. 3, arrows indicate main information or power flows, and there may be information or power flows other than those shown in FIG. In FIG. 3, each block does not have a hardware (device) unit configuration but a functional unit configuration. As such, the blocks shown in FIG. 3 may be implemented in a single device or may be implemented separately in multiple devices.

  The second pump 20 has a lever 22 and a pump portion 23. The lever 22 is provided on the second pump 20 so as to be rotatable or reciprocally movable by a user's operation. The lever 22 receives the external force from the user and moves to generate power for driving the pump unit 23.

  The pump unit 23 uses the power generated by the lever 22 to generate pressure to suck up the fluid and deliver it. The pump unit 23 includes a mechanism such as a piston, a plunger, a diaphragm, and an impeller, which is necessary for sucking up and delivering the fluid.

  The controller 30 has the above-described operation setting unit 31, adjustment setting unit 32, and switching setting unit 33, and sends a signal indicating the content input by the user to the control unit 14.

  The first pump 10 has a control unit 14, an interface 15, a drive unit 16, and a pump unit 17. The interface 15 is an interface for exchanging signals with the controller 30, the switching device 50, the remaining amount sensor 70, and the pressure sensor 80. The interface 15 performs predetermined processing on the signals received from the controller 30, the remaining amount sensor 70, and the pressure sensor 80 to acquire data, and inputs the acquired data to the control unit 14. Further, the interface 15 performs a predetermined process on the data input from the control unit 14 to generate a signal, and transmits the generated signal to the switching device 50.

  The drive unit 16 generates power for operating the pump unit 17 with electric power supplied from a battery or a power supply. The operation of the drive unit 16 is controlled by the control unit 14. As the drive unit 16, for example, a motor or an actuator can be used.

  The pump unit 17 uses the power generated by the drive unit 16 to generate pressure to suck up the fluid and deliver it. The pump unit 17 includes a mechanism such as a piston, a plunger, a diaphragm, and an impeller, which is necessary for sucking up and delivering a fluid.

  The control unit 14 is, for example, a processor such as a CPU (Central Processing Unit), and has a function of processing data from the controller 30, the remaining amount sensor 70, and the pressure sensor 80 by executing a program, and a path to the switching device 50. And the function of driving the drive unit 16. At least a part of the function of the control unit 14 may be performed by an electric circuit. The control unit 14 may be connected to a storage unit (not shown) that stores programs and the like.

  The control unit 14 is a signal that causes the switching device 50 to switch the route to the first route 41 or the second route 42 according to the input content of the switching setting unit 33 (that is, the setting of the first route 41 or the second route 42). To send.

  Further, the control unit 14 controls the drive unit 16 according to the input contents of the operation setting unit 31 and the adjustment setting unit 32. Specifically, when the operation setting unit 31 is set to the OFF state, the control unit 14 controls to stop the driving of the driving unit 16.

  When the operation setting unit 31 is set to the ON state, the control unit 14 controls to drive the driving unit 16 according to the pressure (or the discharge amount per unit time) set by the adjustment setting unit 32, This causes the pump portion 17 to deliver the fluid. At this time, the control unit 14 controls the electric power supplied to the drive unit 16, for example, so that the fluid delivered by the pump unit 17 is adjusted to match the pressure set in the adjustment setting unit 32 or the discharge amount per unit time. Control the pressure of.

  When the operation setting unit 31 is set to the automatic state, the control unit 14 controls the drive unit 16 to be driven when the measurement contents of the remaining amount sensor 70 and the pressure sensor 80 satisfy a predetermined condition. A signal that causes the switching device 50 to switch the route is transmitted regardless of the input content of the switching setting unit 33.

  Specifically, the control unit 14 causes the switching device 50 to switch to the second path 42 when the remaining amount of the tank 21 measured by the remaining amount sensor 70 is less than (or less than) a predetermined threshold value. Send a signal. Then, the control unit 14 controls to drive the driving unit 16, and thereby causes the pump unit 17 to deliver the fluid. As a result, the fluid delivered by the first pump 10 is transferred to the tank 21 via the hose 40 and the second path 42. After that, the control unit 14 performs control to stop the driving of the drive unit 16 when the remaining amount of the tank 21 measured by the remaining amount sensor 70 is greater than (or equal to) a predetermined threshold value.

  As described above, the control unit 14 set to the automatic state automatically transfers the fluid from the first pump 10 to the tank 21 of the second pump 20 based on the remaining amount of the tank 21 measured by the remaining amount sensor 70. Control. Therefore, the user can discharge the fluid by the second pump 20 at an arbitrary timing without taking the trouble of checking the remaining amount of the tank 21 of the second pump 20.

  When the remaining amount of the tank 21 measured by the remaining amount sensor 70 is equal to or less than (or less than) a predetermined threshold value, the control unit 14 uses a lamp, a speaker, or the like provided in the fluid discharge device 1 to inform the user. You may notify that the remaining amount of the tank 21 is not sufficient. The user who has seen the notification operates the switching setting unit 33 to switch the route to the second route 42, sets the operation setting unit 31 to the ON state, and sets the tank 21 of the first pump 10 to the second pump 20. The transfer of fluid to the can be initiated manually.

  In addition, the control unit 14 performs control to stop the driving of the driving unit 16 when the pressure of the fluid at the discharge port 60 measured by the pressure sensor 80 is higher than (or higher than) a predetermined threshold. In this case, the user manually drives the second pump 20 to discharge the fluid from the discharge port 60.

  The control unit 14 transmits a signal that causes the switching device 50 to switch to the first path 41 when the pressure of the fluid at the discharge port 60 measured by the pressure sensor 80 is equal to or less than (or less than) a predetermined threshold value. To do. Then, the control unit 14 controls to drive the driving unit 16, and thereby causes the pump unit 17 to deliver the fluid. As a result, the fluid discharged from the first pump 10 is discharged from the discharge port 60 via the hose 40 and the first path 41.

  In this way, the control unit 14 set to the automatic state automatically controls the discharge of the fluid by the first pump 10 based on the pressure of the fluid at the discharge port 60 measured by the pressure sensor 80. Since the first pump 10 is electrically driven, it does not require user's labor, but is not suitable for filling the fluid in a narrow space that requires high pressure. On the other hand, since the second pump 20 is a manual type, the user can operate the lever 22 to fill the fluid into a narrow space that requires high pressure.

  Therefore, after the user starts the discharge of the fluid into the space by the manual second pump 20, the control unit 14 causes the discharge of the electric first pump 10 when the pressure of the discharged fluid becomes low. Switch automatically. As a result, it is possible to make the filling easy by utilizing the advantages of both the second manual pump 20 and the first electric pump 10.

  Although the control unit 14 performs the above control in the present embodiment, the user may perform at least a part of the above control. For example, the user looks at the tank 21 to determine the remaining amount, and when the remaining amount decreases, operates the switching setting unit 33 to switch the route to the second route 42, and turns the operation setting unit 31 on. It may be set and the transfer of the fluid from the first pump 10 to the tank 21 of the second pump 20 may be started.

  Further, for example, the user determines the pressure of the fluid from the resistance force when operating the lever 22, and when the pressure decreases, operates the switching setting unit 33 to switch the route to the first route 41. The operation setting unit 31 may be set to the ON state to start discharging the fluid from the first pump 10 to the outside.

  The fluid discharge device 1 according to the present embodiment is not limited to the specific configuration shown in FIG. The control unit 14 is not limited to the inside of the first pump 10, and may be provided outside the first pump 10 (for example, inside the controller 30).

[Flow chart of fluid discharge method]
FIG. 4 is a diagram showing a flowchart of a fluid discharge method (construction method) by the fluid discharge device 1 according to the present embodiment. The flowchart of FIG. 4 is started, for example, when the user sets the operation setting unit 31 of the fluid discharge device 1 to the automatic state.

  First, the control unit 14 acquires the measurement content of the remaining amount sensor 70 and determines the remaining amount of the tank 21 measured by the remaining amount sensor 70 (S11). When the remaining amount of the tank 21 measured by the remaining amount sensor 70 is small (for example, less than or equal to a predetermined threshold value) (YES in S12), the control unit 14 causes the switching device 50 to switch to the second path 42. A signal to perform is transmitted (S13). Upon receiving the signal of step S13 from the control unit 14, the switching device 50 switches to the second route 42.

  Then, the control unit 14 performs control to drive the driving unit 16 of the first pump 10 and causes the pump unit 17 to deliver the fluid, thereby transferring the fluid to the tank 21 via the hose 40 and the second path 42. Yes (S14). After that, the control unit 14 performs control to stop the driving of the drive unit 16 when the remaining amount of the tank 21 measured by the remaining amount sensor 70 becomes large (for example, larger than or equal to a predetermined threshold).

  When the remaining amount of the tank 21 measured by the remaining amount sensor 70 is large (for example, larger than or equal to a predetermined threshold) (NO in S12), the control unit 14 skips steps S13 to S14 and proceeds to step S15. move on.

  The user operates the lever 22 of the second pump 20 to cause the second pump 20 to discharge the fluid in the tank 21 from the discharge port 60 (S15).

  In a state where the second pump 20 is discharging the fluid in step S15, the control unit 14 acquires the measurement content of the pressure sensor 80 and determines the pressure of the fluid at the discharge port 60 measured by the pressure sensor 80. (S16). When the pressure of the fluid at the discharge port 60 measured by the pressure sensor 80 is high (for example, greater than or equal to a predetermined threshold) (NO in S17), the control unit 14 returns to step S11 and repeats the process.

  When the pressure of the fluid at the discharge port 60 measured by the pressure sensor 80 is low (for example, equal to or lower than or equal to a predetermined threshold value) (YES in S17), the control unit 14 causes the switching device 50 to perform the second operation. A signal for switching to the one path 41 is transmitted (S18). Upon receiving the signal of step S18 from the control unit 14, the switching device 50 switches to the first route 41.

  Then, the control unit 14 controls the drive unit 16 to be driven according to the pressure (or the discharge amount per unit time) set by the adjustment setting unit 32, and causes the pump unit 17 to deliver the fluid. As a result, the control unit 14 causes the first pump 10 to discharge the fluid in the fluid container A from the discharge port 60 (S19).

  When the predetermined termination condition (for example, the user sets the operation setting unit 31 of the fluid discharge device 1 to the ON state or the OFF state) is not satisfied (NO in S20), the control unit 14 returns to Step S19 and performs the process. repeat. When the predetermined ending condition is satisfied (YES in S20), the control unit 14 ends the process.

[Effects of Fluid Discharge Device 1]
Since the fluid discharge device 1 according to the present embodiment has the electric first pump 10 and the manual second pump 20, the fluid is selectively flown by one of the first pump 10 and the second pump 20. The body can be exhaled. The user can use an appropriate pump among the first pump 10 and the second pump 20 depending on the situation.

  Since the first pump 10 has the lid-like body 12 that can be fixed to the wall surface of the fluid container A such as a pail can, it is possible to reduce the time and labor for the user to transfer the fluid between the containers.

  Since the control unit 14 automatically transfers the fluid from the fluid container A to the tank 21 according to the remaining amount of the tank 21 of the second pump 20, the user has to check the remaining amount of the tank 21. Can be reduced. Further, since the control unit 14 automatically switches between the first pump 10 and the second pump 20 according to the pressure of the fluid at the discharge port 60, the user can change the first pump 10 and the second pump 20 depending on the situation. A suitable pump among the second pumps 20 can be automatically used.

[First Modification]
The fluid discharge device 1 according to the present modification has a function of notifying the user of information regarding the first pump 10 in addition to the function of the fluid discharge device 1 shown in FIG. FIG. 5 is a block diagram of the fluid discharge device 1 according to the present modification.

  The fluid discharge device 1 shown in FIG. 5 further includes a notification unit 18, a first pump remaining amount sensor 75, and a first pump pressure sensor 85 in addition to the configuration of FIG. The first pump remaining amount sensor 75 is a sensor that measures the amount of fluid in the fluid container A. The first pump pressure sensor 85 is a sensor that measures the pressure of the fluid discharged from the first pump 10 to the hose 40. The first pump remaining amount sensor 75 and the first pump pressure sensor 85 output a signal indicating the measurement content.

  The interface 15 of the first pump 10 performs predetermined processing on the signals received from the first pump remaining amount sensor 75 and the first pump pressure sensor 85 to acquire data, and inputs the acquired data to the control unit 14.

  The control unit 14 of the first pump 10 measures the remaining amount of the fluid container A (the amount of fluid in the fluid container A) measured by the first pump remaining amount sensor 75 and the first pump pressure sensor 85. The pressure of the fluid delivered from the first pump 10 is notified to the user using the notification unit 18.

  The notification unit 18 includes at least one of a communication device and a sound generation device. The communication device includes communication members such as an antenna, a processor, and an electric circuit for performing wireless communication. The sound generation device includes a buzzer, a speaker, and the like for generating a predetermined sound under the control of the control unit 14.

  The communication device of the notification unit 18 transmits the information indicating the amount of the fluid and the pressure of the fluid in the fluid container A received from the control unit 14 to the communication terminal of the user by wireless communication. For example, the communication device may send the information as an email addressed to a mail address associated with the communication terminal, or may send the information to a server accessed by an application executed by the communication terminal.

  The communication terminal owned by the user displays the amount of fluid in the fluid container A and the pressure of the fluid received from the fluid ejection device 1 on a display device such as a liquid crystal display. Thus, the user can know the remaining amount of the fluid container A in which the first pump 10 is mounted and the pressure of the fluid discharged by the first pump 10, even if the user is away from the first pump 10. ..

  In addition, the sound generation device of the notification unit 18 operates when the amount of the fluid or the pressure of the fluid in the fluid container A received from the control unit 14 satisfies a predetermined condition (for example, a predetermined threshold value or less). , Generate a predetermined sound. This allows the user to know that an abnormality or the like has occurred in the first pump 10 even if the user is away from the first pump 10.

  The user may work in a place away from the first pump 10 while holding the second pump 20 connected to the hose 40. Even in such a case, since the fluid discharge device 1 according to the present modification notifies the user of the information regarding the first pump 10 by wireless communication or using sound, the user recognizes the information regarding the first pump 10. it can.

[Second Modification]
In the fluid discharge device 1 shown in FIG. 1, the switching device 50 switches the route of the fluid between the first route 41 and the second route 42, whereas the fluid discharge device 1 according to the present modification example. , The fluid is discharged without switching the path of the fluid.

  FIG. 6 is a schematic diagram of the fluid discharge device 1 according to the present modification. The fluid discharge device 1 according to the present modification is different from the fluid discharge device 1 shown in FIG. 2 in that it does not include the switching device 50 and the tank 21. The hose 40 discharged from the first pump 10 is connected to the second pump 20 without being branched into the first path 41 and the second path 42 by the switching device 50. Further, the hose 40 that comes out of the second pump 20 is connected to the discharge port 60.

  The first pump 10 uses the power generated by the electric power to deliver the fluid in the fluid container A to the hose 40. The fluid passing through the hose 40 is discharged from the discharge port 60 through the second pump 20.

  When the user operates the lever 22 while the first pump 10 is operating, that is, when the external force is applied to the second pump 20, the second pump 20 applies the fluid passing through the hose 40. Press. Therefore, the fluid passing through the hose 40 is discharged from the discharge port 60 by the pressure (for example, 25 MPa) generated by the second pump 20. On the other hand, when the user does not operate the lever 22 while the first pump 10 is driven, that is, when the external force is not applied to the second pump 20, the second pump 20 is a fluid flowing through the hose 40. Do not pressurize. Therefore, the fluid passing through the hose 40 is discharged from the discharge port 60 by the pressure (for example, 5 MPa) generated by the first pump 10.

  According to the fluid discharge device 1 according to the present modification, the user operates the lever 22 of the second pump 20 or does not operate the lever 22, so that the automatic injection and the manual injection can be easily performed without operating the controller 30. And the pressure of the fluid to be discharged can be switched.

  Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. is there. For example, the specific embodiment of the distribution / integration of the device is not limited to the above-described embodiment, and all or a part thereof may be functionally or physically distributed / integrated in arbitrary units to be configured. You can Further, a new embodiment that occurs due to an arbitrary combination of a plurality of embodiments is also included in the embodiment of the present invention. The effect of the new embodiment produced by the combination has the effect of the original embodiment.

  The control unit 14 (processor) of the fluid discharge device 1 is a main body of each step (process) included in the fluid discharge method shown in FIG. That is, the control unit 14 reads a fluid discharge program for executing the fluid discharge method shown in FIG. 4 from the storage unit, executes the fluid discharge program, and controls each unit of the fluid discharge device 1. The fluid discharge method shown in FIG.

  Further, the user may be the subject of at least part of the steps included in the fluid discharge method shown in FIG. When the user is the main subject, the user determines the remaining amount by looking at the tank 21 in step S11, and determines the pressure of the fluid from the resistance force when the user operates the lever 22 in step S16. In steps S13 and S18, the user operates the switching setting unit 33 to cause the switching device 50 to switch the route, and in steps S14, S15, and S19, the user operates the operation setting unit 31 to operate the first pump 10 and the first pump 10. 2 The pump 20 is driven.

1 Fluid Discharge Device 10 First Pump 14 Control Unit 18 Notification Unit 20 Second Pump 21 Tank 50 Switching Device 70 Remaining Sensor 75 First Pump Remaining Sensor 80 Pressure Sensor 85 First Pump Pressure Sensor

Claims (15)

A pipe through which the fluid flows,
A first pump that is connected to one end of the pipe and pressurizes the fluid sucked from the outside to deliver the fluid to the pipe;
A second pump which is connected to the other end of the pipe and pressurizes the fluid supplied from the pipe to discharge the fluid to the outside;
And a fluid discharge device.   The fluid discharge device according to claim 1, wherein the first pump is a pump driven electrically. A sensor for measuring the pressure required to discharge the fluid to the outside,
The fluid discharge device according to claim 2, further comprising a control unit that controls driving of the first pump based on the pressure measured by the sensor.   The fluid discharge device according to claim 2, further comprising a control unit that performs control to drive the first pump when a predetermined condition is satisfied after the second pump is driven.   The fluid discharge device according to any one of claims 1 to 4, wherein the second pump includes a tank that stores the fluid, and discharges the fluid in the tank to the outside.   Between a first path for discharging the fluid discharged from the first pump to the pipe to the outside and a second path for transferring the fluid discharged from the first pump to the tube to the tank. 7. The fluid discharge device according to claim 5, further comprising a switching unit that switches the path of the fluid.   A controller that controls the switching unit to switch the path of the fluid from the first path to the second path when the amount of the fluid in the tank is less than or equal to a predetermined value or less than a predetermined value. The fluid discharge device according to claim 6, further comprising:   The fluid discharge device according to any one of claims 1 to 7, wherein the second pump is a pump driven by an external force.   The second pump pressurizes and discharges the fluid discharged from the first pump to the pipe when the external force is applied, and when the external force is not applied, the second pump presses the fluid. The fluid discharge device according to claim 8, wherein the fluid discharged from the first pump to the pipe is discharged to the outside without being pressurized.   The fluid discharge device according to any one of claims 1 to 9, wherein the second pump can discharge the fluid at a pressure higher than that of the first pump.   11. The first pump according to claim 1, wherein the first pump is configured to be attachable to a wall surface of a container holding the fluid, and delivers the fluid sucked from the container to the pipe. Fluid discharge device. A sensor for measuring at least one of the amount of the fluid in the container in which the first pump is mounted and the pressure at which the first pump delivers the fluid to the pipe;
A notification unit for notifying the value measured by the sensor,
The fluid discharge device according to any one of claims 1 to 11, further comprising: A fluid discharge method using a fluid discharge device comprising: a pipe through which a fluid is passed; a first pump connected to one end of the pipe; and a second pump connected to the other end of the pipe. ,
A first step in which the first pump pressurizes the fluid sucked from the outside and delivers the fluid to the pipe;
A second step in which the second pump pressurizes the fluid supplied from the pipe and discharges the fluid to the outside;
Have
A fluid discharge method for discharging the fluid from the fluid discharge device to the outside by performing at least one of the first step and the second step.   The fluid discharge method according to claim 13, wherein the first step is performed when a predetermined condition is satisfied after performing the second step. The fluid discharge method according to claim 13 or 14, further comprising a third step in which the first pump transfers the fluid sucked from the outside to the tank provided in the second pump via the pipe.

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