JP4162964B2 - Air pump with channel switching function with both outlet and outlet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air pump with an air flow path switching function for a sewage septic tank.
[0002]
[Prior art]
An air pump in which a pump body that discharges air by vibration of a diaphragm and an air tank that temporarily stores discharged air and discharges one of the two discharge ports (A, B) are integrally assembled. The air tank includes a partition that forms an air flow path, and the partition includes a branch port that divides the air flow path into two, and the branch port includes a valve body that switches air, and instructs the valve body to switch. 2. Description of the Related Art Conventionally, a (two-port) air pump with a flow path switching function including a control device for supplying is known (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-238473
The air pump is usually incorporated in a sewage septic tank that purifies waste water from a toilet, kitchen, bathtub, washing machine, and the like. That is, one of the two discharge ports (A, B) of the air pump is connected to an aeration pipe to the aerobic treatment tank of the sewage purification tank, and the other is a backwash pipe that disturbs the filler in the aerobic treatment tank. Connect to.
[0005]
[Problems to be solved by the invention]
When a new sewage septic tank is installed, if the air pipe (aeration pipe and backwash pipe) is installed in reverse, the two outlets (A, B) of the air pump are fixed to one side of the air pump. Since it is provided, the connection between the two discharge ports of the air pump and the air pipe (aeration pipe and backwash pipe) of the sewage septic tank is reversed, resulting in an inappropriate connection. To restore the appropriate connection, connect the air pipes close to each other near the air pump, use the air pump upside down, or use the air pipe buried in the ground together with the sewage septic tank (aeration pipe) And pipe for backwashing) must be dug up and the piping work must be started again.
By the way, the above-described method of crossing the air pipes impairs the appearance (aesthetic appearance) of the apparatus.
The air pump is not designed to be used upside down.
In addition, the method of digging up the air piping (aeration piping and backwashing piping) and starting the piping work again may be filled with asphalt or concrete, and the work at that time is a serious work.
[0006]
An object of the present invention is to provide an air pump that can be connected while leaving the air pipes even when the air pipes of the aeration pipe and the backwash pipe are mistakenly installed.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration.
That is, the air pump 1 with a flow path switching function of the present invention has a pump main body 2 that discharges air (contained in the upper casing 6), and discharge air from the pump main body 2 that accumulates the discharge port A or the discharge port. It consists of an air tank 3 that discharges from either one of the outlets B and a control device 4, and
The air tank 3 includes a plurality of air chambers (first air chamber 11, second air chamber 12, third air chamber 13) partitioned by a partition wall 14 for forming an air flow path, and a valve body attached thereto. A flow path switching device 5;
The partition wall 14 is provided with branch ports 9 and 10 for dividing the air flow path into a plurality (usually two),
The flow path switching by the flow path switching device 5 with the valve body is an air pump 1 with a flow path switching function controlled via the control device 4,
The discharge port A is composed of two discharge ports (A ₁ and A ₂ ) provided in a common air chamber (second air chamber 12 or third air chamber 13).
The discharge port B consists of two discharge ports (B ₁ and B ₂ ) provided in a common air chamber (second air chamber 12 or third air chamber 13).
The arrangement order of one discharge port A ₁ and B ₁ is arranged in line symmetry with respect to the arrangement order of the other discharge ports A ₂ and B ₂ in plan view ,
In the air pump 1 with a flow path switching function, one of the discharge ports A ₁ and B _{1 to the} other discharge ports A ₂ and B ₂ is connected to the air piping of the sewage septic tank. is there.
[0008]
Here, the external shape of the air pump 1 with a flow path switching function is preferably a substantially prismatic box shape or a substantially cylindrical box shape .
[0009]
In addition, the control device 4 is preferably integrated into the upper surface or side surface of the casing 6 that covers the pump body 2.
[0010]
[Action]
In the air pump 1 with the flow path switching function of the present invention, the regular discharge ports A ₁ and B ₁ are arranged so as to protrude from the air tank 3, and two (spare) discharge ports A ₂ and B are separately provided. ₂ protrudes so as to complement the normal discharge ports A ₁ and B ₁ , so that the discharge ports are arranged in the order of A and B if they are rotated by an appropriate angle about the vertical line. Alternatively, the opposite arrangement of B and A may be used.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described more specifically with reference to the accompanying drawings.
FIG. 1 is an external perspective view and a plan view of an example of an air pump with a flow path switching function of the present invention. FIG. 2 is an internal configuration diagram of the air pump as seen through from the side. As can be seen from FIGS. 1 and 2, the air pump 1 with a flow path switching function according to the present invention includes a pump body 2 housed in an upper casing 6, an inlet 8 that receives discharge air from the pump body 2, and Consists of an air tank 3 provided with a flow path switching device 5 for accumulating discharged air and supplying it to one flow path (A or B) of the two flow paths (A and B), and a control device 4. As an integral structure housed in the casing.
[0012]
In addition, air pumps, such as a diaphragm vibration type air pump, an electromagnetic piston type air pump, a rotary type air pump, can be used for the pump part as a pump main body, Preferably, it is a diaphragm vibration type air pump.
[0013]
FIG. 3 shows the structure of the air tank portion of the air pump as viewed from above. The air tank 3 is divided into a first air chamber 11, a second air chamber 12 and a third air chamber 13 which are partitioned by a partition wall 14 for forming an air flow path. The second air chamber 12 and the third air chamber 13 communicate with the first air chamber 11 via the branch port 9 and the branch port 10, respectively. Further, the partition wall 14 is provided with branch ports 9 and 10 that divide the air flow path in two directions, and in the vicinity of the branch ports 9 and 10, a flow path switching device 5 with a valve body is attached. The air flow path is switched by pressing and closing the valve body against either of the branch ports 9 and 10. Here, the arrangement of the discharge ports (A, B) in plan view is substantially symmetrical. Note that the arrangement of the discharge ports A and B in plan view does not necessarily require a symmetrical structure. One outlet A ₁ and B ₁ is arranged to complement the other outlets A ₂ and B ₂ (eg, counterclockwise, A ₁ and B ₁ in order, and B ₂ and A ₂ (Combination order). FIG. 3 shows an example in which air is discharged from the discharge port A (A ₁ and A ₂ ).
[0014]
FIG. 3B is an enlarged view of the valve body portion. One end of the piston rod 17 is connected to the electromagnetic device 16, and a valve body (piston) 15 is fixed to the piston rod 17, and the other end of the piston rod 17 faces the branch ports 9 and 10. A spring for biasing the valve body (piston) is connected. In the case of FIG. 3, the electromagnetic device 16 is not operating (the current is not energized), the piston rod 17 is urged by a spring 19, one branch port 9 is opened, and the other branch port 10 is a valve. It is blocked by the body (piston).
[0015]
In this state, the air discharged from the pump body 2 flows into the first air chamber 11 through the inflow port 8, flows into the second air chamber 12 through the branch port 9 as shown by the arrows, Discharge from the discharge ports (A ₁ and A ₂ ). When this air pump is actually connected to the air pipe of the sewage septic tank, the other discharge port that does not require air discharge is closed with a rubber plug or the like.
[0016]
FIG. 4 shows a case where air is discharged from the discharge port B (B ₁ and B ₂ ). At this time, the electromagnetic device 16 is energized to operate it, the valve body (piston) 15 is moved against the force of the spring 19, the branch port 9 is closed, and the branch port 10 is opened. As a result, the air flowing into the first air chamber 11 flows into the third air chamber 13 through the branch port 10 and is discharged from the discharge ports (B ₁ and B ₂ ) on both sides.
[0017]
Next, the control device 4 will be described with reference to a front view of the control device portion (FIG. 5). The control device 4 has a 24-hour timer, displays a time display unit for displaying time, etc., switches such as a manual backwash switch, a mode change switch, a time setting switch, an automatic operation lamp, a clock setting lamp, It comprises lamps such as a backwash start time lamp, a backwash end time lamp, and a backwash lamp. Normally, the automatic operation mode is set. In the lamps, only the automatic operation lamp is lit and the current time is displayed on the time display section.
[0018]
By operating the mode switch, it is possible to switch to the automatic operation mode, the current time setting mode, the backwash start time mode, and the backwash end time mode. When the current time setting mode is selected, the automatic operation lamp goes off and the clock setting lamp lights up. The current time can be set by the time setting switch.
[0019]
When the backwash start time mode is selected, the automatic operation lamp is turned off and the backwash start time lamp is turned on. The backwash start time is set by the time setting switch. When the backwash end time setting mode is selected, the backwash end time lamp is turned on, and the backwash end time can be set in the same manner as the previous backwash start time mode. Air is discharged from the discharge ports B (B ₁ and B ₂ ) for the set backwash time (from the backwash start time to the backwash end time). That is, in the time zone for aeration to the aerobic filter bed set in the setting unit, the discharge port A (A ₁ , A ₂ ) is open (discharge port B is closed), and the discharge port A (A ₁ , A ₂₎ air is supplied from, while the time period backwash discharge port B (B _1, B ₂ is in an open (discharge port a is closed), the air from the discharge port B (B _1, B ₂₎ Supplied to the septic tank [0020]
Further, when the manual backwash switch is operated, the switching device can be forcibly activated. When the manual backwash switch is pressed, the backwash lamp is lit and air is discharged from the discharge port B.
[0021]
The control device may be disposed on the side surface of the upper casing 6 as illustrated in FIG. 1, but may be disposed on the upper surface of the upper casing 6. This is because the display can be read and operated easily no matter how the air pump is rotated about the vertical line.
[0022]
FIG. 6 shows an example of the sewage septic tank 20 incorporating the air pump 1 with a flow path switching function of the present invention.
[0023]
【The invention's effect】
If the air pump with a flow path switching function of the present invention is used, pipe connection can be easily made by matching the side direction of the air pump attachment according to the polarity of aeration and backwashing of the air pipe from the sewage septic tank.
Therefore, even if the air piping of the aeration pipe and the backwashing pipe in the sewage septic tank is mistakenly installed reversely, instead of using the normal discharge ports A ₁ and B ₁ while leaving the air pipe, The spare discharge ports A ₂ and B ₂ may be used for connection. There is no need to rework troublesome air piping. There is no crossing of air piping.
Even if an incorrect pipe is found during regular inspections, troublesome air pipe rework is not required.
[Brief description of the drawings]
FIG. 1 is an example of an air pump with a flow path switching function according to the present invention, in which (A) is an external perspective view, and (B) is a plan view.
FIG. 2 is an internal configuration diagram of the air pump with a flow path switching function of FIG. 1 as viewed from the side.
FIG. 3 shows an air tank portion of an air pump with a flow path switching function when air is discharged from a discharge port A (A ₁ and A ₂ ). (A) is a horizontal sectional view, and (b) is an enlarged view of a valve body portion.
FIG. 4 shows an air tank portion of an air pump with a flow path switching function when air is discharged from a discharge port B (B ₁ and B ₂ ). (A) is a horizontal sectional view, and (b) is an enlarged view of a valve body portion.
FIG. 5 is a control device portion (front view) of FIG. 1;
FIG. 6 is a perspective view of an example of a sewage septic tank incorporating an air pump with a flow path switching function.
[Explanation of symbols]
1: Air pump 2: Pump body 3: Air tank (also used as air flow path) Control device 5: flow path switching device 6: casing (upper casing)
7: Air supply port 8: Inlet 9 :: Branch port 10: Branch port 11: First air chamber 12: Second air chamber 13: Third air chamber 14: Partition 15: Valve body (piston) 16: Electromagnetic device 17: Piston rod 19: Spring 20: Septic tank

Claims (2)

A pump main body for discharging air, an air tank for storing the discharge air from the pump main body and discharging from either one of the discharge port A or the discharge port B, and a control device,
The air tank includes a plurality of air chambers partitioned by partition walls for forming an air flow path, and a flow path switching device attached thereto.
The partition is provided with a branch port that divides the air flow path into a plurality of parts,
The flow path switching by the flow path switching device is an air pump with a flow path switching function controlled via the control device,
The discharge port A includes two discharge ports (A ₁ and A ₂ ) provided in a common air chamber, and the discharge port B includes two discharge ports (B ₁ and B ₂ provided in a common air chamber). And the arrangement order of one discharge port A ₁ and B ₁ is arranged symmetrically with respect to the arrangement order of the other discharge ports A ₂ and B ₂ in plan view ,
An air pump with a flow path switching function in which any one of the discharge ports A ₁ and B _{1 to the} other discharge ports A ₂ and B ₂ is connected to the air piping of the sewage septic tank . The air pump with a flow path switching function according to claim 1 , wherein the control device is integrally formed on an upper surface or a side surface of a casing covering the pump body.

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