JPH0819716A - Filter - Google Patents

Abstract

PURPOSE:To remove and discharge automatically foreign matters which adhered to a filter body. CONSTITUTION:In a case 12, a space part 15, an inflow opening 19, an outflow opening 25, and drain opening 21 are formed in the inside, on the outside, in the upper part, and in the lower part of the case, respectively. An actuation body 33 is provided which supports the first valve body 31 which closes the inflow opening 19 and the second valve body 32 which closes the drain opening 21. The actuation body 33 is installed in the space part 15 swingably so that when one of the valve bodies 31, 32 is closed, the other is opened. An energizing means is provided which energizes the actuation body 33 in the direction to make the first valve body 31 close the inflow opening 19. A filter body 41 the middle part of which is vertically flexible is installed between the inflow opening 19 and the outflow opening 25 which are located above the drain opening 21 in the space part 15, and a weight 45 is attached in the middle of the filter body 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtering device for filtering liquid in the middle of piping of a water supply passage to remove foreign matters contained in the liquid.

[0002]

2. Description of the Related Art For example, in a water sprinkler, a water supply pipe is laid up to a water sprinkling place, and a sprinkler connected to an end of the water supply pipe is buried in the ground of the water sprinkling place. And
Water is supplied from the water supply source through the water supply pipe, or the water supply pressure is applied.By opening the solenoid valve provided in the middle of the water supply pipe, the water supply pressure is applied to the sprinkler and the sprinkler rises above the ground. It is designed to spray water while rotating with it.

By the way, mud, sand,
Solid foreign matter such as pebbles and debris may be mixed in various ways. For example, when the water source is a pond or a river, foreign substances are also inhaled with the pump when it is inhaled, foreign substances are mixed when the pipe is laid, and the foreign substances may be removed from the wounds or cracks due to a ruptured tube. mixing.

If foreign matter is mixed into the pipe of the water supply passage, there is a problem that the sprinkler or the solenoid valve is clogged or adheres to cause malfunction. That is, when the sprinkler malfunctions due to foreign matter, there are problems such as no water being sprinkled from the sprinkler, the sprinkler not rising, and the sprinkler not rotating, which causes problems such as poor water sprinkling and uneven water sprinkling. Further, if the solenoid valve malfunctions due to foreign matter, there is a problem that the solenoid valve does not close completely, which causes a problem that water sprinkling does not stop and a water pool can be formed.

Therefore, a strainer is provided in the middle of the water supply path, and the wire mesh of the strainer captures and removes foreign matter.

[0006]

However, when foreign matter is captured by the wire mesh of the strainer, foreign matter accumulates on the wire mesh and causes clogging. Therefore, the wire mesh must be cleaned regularly. There is a problem that takes time.
In particular, when there are a plurality of locations where foreign matter is mixed and a plurality of strainers must be used, there is a problem that labor is required to clean each strainer.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a filtering device capable of automatically removing foreign matter adhering to a filter body from the filter body and discharging the foreign matter.

[0008]

The filtration device of the present invention has a space portion inside, an inflow port communicating with the space portion is formed in a side portion, and an outflow port communicating with the space portion is formed in an upper portion. And a case in which a discharge port communicating with the space is formed in the lower portion, a first valve body closing the inflow port and a second valve body closing the discharge port are supported, and An operating body swingably attached to the space of the case so that one of the valve bodies is in an open state when the other is in a closed state, and the operating body is provided with the first valve body for connecting the inlet port. A peripheral portion is attached substantially horizontally between the biasing means for biasing in the closing direction and the inflow port and the outflow port facing above the discharge port in the space part of the case, and the center part is attached to the peripheral part. And a filter body whose part is flexible in the vertical direction and the inside of this filter body. Those having a weight attached to the part.

[0009]

In the filtering device of the present invention, when water pressure is applied to the inflow port, it is swung by the actuating member against the bias of the biasing means, and the first
The valve body opens the inflow port and the second valve body closes the discharge port, and water flows into the space from the inflow port, passes through the filter, and flows out from the outflow port. At this time, the water pressure applied to the filter body causes the central portion of the filter body to be displaced so as to project upward, and foreign matter such as mud and sand mixed in the water is captured and removed while the water passes through the filter body. To be done.

When the water pressure applied to the inlet decreases,
The actuating body is swung by the urging of the urging means, the first valve body closes the inflow port, the second valve body opens the discharge port, and the water in the space is discharged from the discharge port. At the same time, the central part of the filter body is rapidly inverted so as to project downward due to the load of the weight, and the foreign matter adhering to the lower surface of the filter body is shaken down and discharged together with water from the discharge port.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the filtration device of the present invention will be described below with reference to the drawings.

FIG. 1 shows a cross-sectional view of a filtration device 11, 12 is a cylindrical case, and this case 12 is composed of a lower case body 13 and an upper cover body 14, and these case body 13 and cover are provided. A space 15 is formed inside the body 14.

The case body 13 is formed with a flange 16 on the peripheral edge of the upper end, an inflow connecting pipe 17 is formed on the side portion, and an exhaust connecting pipe 18 is formed on the lower portion. An inflow port 19 communicating with the space 15 is formed inside the inflow connection pipe 17, and a female screw 20 is formed on the inner circumference of the tip of the inflow connection pipe 17. A discharge port 21 communicating with the space 15 is formed inside the discharge connection pipe 18, and a male screw 22 is formed on the outer periphery of the tip of the discharge connection pipe 18.

The cover body 14 has a flange 23 formed at the lower end peripheral portion thereof, and an outflow connection pipe 24 formed at the upper portion thereof so as to project therefrom.
An outflow port 25 is formed inside the outflow connection pipe 24, and a female screw 26 is formed on the inner circumference at the tip of the outflow connection pipe 24.

Then, the flange 16 of the case body 13 and the flange 23 of the cover body 14 are joined together via a packing 27, and bolts 28 are screwed onto the flange 23 through the flange 16 at a plurality of positions on the periphery of the flanges 16, 23. By doing so, both flanges 16 and 23 are liquid-tightly fixed.

Further, the inlet 19 and the outlet of the case body 13
Annular valve seats 29 and 30 having holes 29a and 30a in the center are fixed to the ends of the space 21 facing the space 15 in a liquid-tight manner.

A valve seat 29 is provided in the space 15 of the case body 13.
First valve body 31 and valve seat 30 that close the inlet 19 via the
An actuating body 33 that supports a second valve body 32 that closes the discharge port 21 via the is provided.

Each valve element 31, 32 is formed in a spherical shape,
The diameter of each valve body 31, 32 is the hole 29a of the corresponding valve seat 29, 30,
The diameter of the first valve body 31 is larger than that of the second valve body 32 while being formed larger than 30a.

As shown in FIG. 2, the actuating body 33 is provided with a pair of first arms 34, and a pair of second arms 35 are formed in a substantially L shape from the base of each first arm 34. A pair of first arms 34 are integrally formed so as to project, and a connecting portion 36 is integrally formed by connecting the intermediate portions of the pair of first arms 34. A pair of first arms
The first valve element 31 is arranged between the tips of 34 and is fixed by the pin 37, and the second valve element is provided between the tips of the pair of second arms 35.
32 are arranged and fixed by pins 38.

The actuating member 33 is composed of a pair of first arms.
The shaft 39 is rotatably supported by a support shaft 39 that penetrates the base of the support member 34. As shown in FIG.
It is attached along the horizontal direction orthogonal to the axial direction of the inflow port 19 at the position below. As a result, when the actuating body 33 rotates clockwise in FIG. 1, the first valve body 31 can close the hole 29a of the valve seat 29, and when it rotates counterclockwise in FIG. The second valve body 32 is capable of closing the hole 30a of the valve seat 30, and is swingably attached so that when one of the valve bodies 31 and 32 is in the closed state, the other is in the open state.

A spring body 40 as an urging means is mounted on the support shaft 39, and the spring body 40 causes the actuating body 33 to move to the first valve body.
31 is urged clockwise in FIG. 1 to close the hole 29a of the valve seat 29.

In the space 15 of the case body 13, a filter body 41 is arranged between the case body 13 and the cover body 14. The filter body 41 is made of a flexible nylon fiber net or the like, the peripheral edge portion is sandwiched between the rubber rings 42 and liquid-tightly sandwiched and fixed between the flanges 16 and 23, and the central portion extends vertically. Slack is added to allow flexibility.

At the center of the filter body 41, a float 43 on the upper surface and a retainer 44 on the lower surface are attached in a sandwiched state,
A weight 45 is attached to the lower portion of the retainer 44.

A protective cover 46 is provided on the upper side of the filter body 41. The protective cover 46 is made of punched metal having a plurality of small holes, and the peripheral portion is sandwiched and fixed between the flanges 16 and 23, and the central portion thereof is fixed. The part is formed so as to protrude upward. Then, when the float 43 moves upward, before the filter body 41 is completely extended, the float 43 is covered by the protective cover 46.
It is configured to abut the upper surface portion 47 of the.

FIG. 3 shows a piping diagram in which the filtering device 11 is applied to a sprinkler device. A water supply pipe 51 is connected to the inflow connecting pipe 17 of the filtering device 11 and a plurality of connections are connected to the sprinkler 52 to the outflow connecting pipe 24. The pipe 53 is connected, and the discharge pipe 54 is connected to the discharge connection pipe 18. They are all buried in the ground, and are constructed so that the upper surface of the sprinkler 52 is exposed to the ground.

FIG. 4 is a piping diagram in which the water sprinkler is applied to, for example, the green G of a golf course, and the sprinkler shown in FIG.
A plurality of combinations of 52 and the filtration device 11 are arranged around the green G, and the water supply pipe 51 and the discharge pipe 54 are connected to each filtration device 11. The water supply pipe 51 has a water control valve 62 for controlling the flow rate, a filtration device 11, and a solenoid valve 63 for opening and closing the flow path, as compared with the water supply main pipe 61.
Connected through. The discharge pipe 54 is connected to a drainage basin 64.

FIG. 5 shows a water control valve 62, a filtering device 11 and a solenoid valve.
A piping diagram of a portion 63 is shown, in which the water control valve 62 is independently arranged in the valve box 71, and the filtering device 11 and the solenoid valve 63 are arranged together in the valve box 72.

Next, the operation of this embodiment will be described.

First, the operation of the filtering device 11 combined with each sprinkler 52 will be described.

In the state where the solenoid valve 63 is closed, the water supply pressure is not applied to the inflow port 19 of the filtration device 11, and the actuating body 33 is rotated clockwise in FIG. 1 by the urging force of the spring body 40. As shown by the solid line in FIG. 1, the first valve body 31 comes into contact with the valve seat 29 to close the inflow port 19, and the second valve body 32 is closed.
The discharge port 21 is opened apart from 30. Furthermore, the central portion of the filter body 41 is in a state of being displaced so as to project downward by the load of the weight 45 or the like.

Then, the solenoid valve 63 is opened and the filtering device 11 is opened.
When the water supply pressure is applied to the inflow port 19 of the first valve body 31, the water supply pressure applied to the first valve body 31 overcomes the biasing force of the spring body 40, and the actuating body 33 is rotated counterclockwise in FIG. As shown by the chain double-dashed line, the first valve body 31 separates from the valve seat 29 to open the inflow port 19, and the second valve body 32 contacts the valve seat 30 to close the discharge port 21. To be done.

Therefore, the water sent through the water supply pipe 51 flows into the space 15 of the case 12 from the inflow port 19, passes through the filter body 41, and flows out from the outflow port 25 to the connecting pipe 53. At this time, due to the water pressure received by the filter body 41 and the buoyancy of the float 43, the center of the filter body 41 is inverted so as to project upward, as shown by the two-dot chain line in FIG. Abut and stop. Further, in the process of water passing through the filter body 41, foreign matter such as mud and sand mixed in the water is captured and removed.

Then, the water flowing out from the outlet 25 of the filtering device 11 reaches the sprinkler 52 through the connecting pipe 53, and the water supply pressure applied to the sprinkler 52 causes the sprinkler 52a of the sprinkler 52 to rise from the ground and rotate. Meanwhile, water is sprayed on Green G. At this time, the filtration device
Since the foreign matter has been removed from the water by 11, the sprinkler 52 is reliably operated.

When the solenoid valve 63 is closed after the sprinkling is completed, the water supply pressure applied to the inflow port 19 of the filtration device 11 is reduced,
The urging force of the spring body 40 overcomes the water supply pressure, the actuation body 33 is rotated clockwise in FIG. 1, and as shown by the solid line in FIG.
The first valve body 31 contacts the valve seat 29 to close the inflow port 19, and the second valve body 32 separates from the valve seat 30 and the discharge port 21.
Is released.

Therefore, the space 15 of the case 12 and the connecting pipe 53
Water such as inside is discharged from the discharge port 21, and the center portion of the filter body 41 is rapidly inverted so as to project downward due to the load such as the weight 45 and the water flowing into the space portion 15 from the connection pipe 53. The foreign matter attached to the lower surface of the filter body 41 is shaken down and discharged from the discharge port 21 together with water.

Therefore, the attached foreign matter is filtered by the filter body 41.
Can be automatically removed from the filter body, and foreign matter removed from the filter body 41 can be automatically discharged.
Maintenance such as cleaning of 41 can be eliminated.

Next, the water control valve 62 and the solenoid valve in the middle of the water supply pipe 51.
The operation of the filter device 11 arranged between the filter device 63 and the valve 63 will be described. When the water control valve 62 is opened, the water pressure is applied to the filter device 11, and the first valve element 31 causes the valve seat 29 to move. And the inflow port 19 is opened, the second valve body 32 comes into contact with the valve seat 30 and the exhaust port 21 is closed, and the filter body 41 is further buoyant by the float 43. Is displaced so that the central portion of the projecting portion projects upward.

Then, by closing the water control valve 62, the water supply pressure applied to the filtration device 11 is lowered, and the first valve body 31 is closed by the valve seat.
29, the inflow port 19 is closed, the second valve body 32 is separated from the valve seat 30, the discharge port 21 is opened, and the space 15 of the case 12 and the piping to the solenoid valve 63 are connected. The water in the inside is discharged from the discharge port 21, and the center of the filter body 41 is suddenly projected downward by the load such as the weight 45 and the water flowing into the space 15 from the inside of the pipe to the solenoid valve 63. The foreign matter adhering to the lower surface of the filter body 41 is shaken down and discharged from the discharge port 21 together with water.

Therefore, the adhered foreign matter is filtered by the filter body 41.
Can be automatically removed from the filter body, and foreign matter removed from the filter body 41 can be automatically discharged.
Maintenance such as cleaning of 41 can be eliminated.

[0040]

According to the present invention, when water pressure is applied, the inlet is opened and the outlet is closed, the filter body is displaced upward by the water pressure flowing from the inlet to the outlet, and the water pressure is also increased. When the temperature drops, the inlet is closed and the outlet is opened, the water in the space is discharged from the outlet, and the center of the filter body is suddenly inverted so that it is projected downward by the weight load. The foreign matter adhering to the lower surface of the filter body is shaken down and automatically removed, and it can be automatically discharged together with water from the discharge port, which makes maintenance such as cleaning of the filter body unnecessary. .

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a filtration device of the present invention.

FIG. 2 is a perspective view of an actuating body according to the above embodiment.

FIG. 3 is a piping diagram for explaining an example of use of the filtration device of the above-mentioned embodiment.

FIG. 4 is an explanatory diagram illustrating an arrangement state in a usage example of the filtering device according to the embodiment.

[Fig. 5] Fig. 5 is a piping diagram for explaining an example of use of the filtration device of the above-mentioned embodiment.

[Explanation of symbols]

 12 Case 15 Space 19 Inlet 21 Outlet 25 Outlet 31 First valve body 32 Second valve body 33 Actuator 40 Spring body as biasing means 41 Filter body 45 Weight

Claims (1)

[Claims] 1. A space portion is formed inside, an inflow port communicating with the space portion is formed at a side portion, an outflow port communicating with the space portion is formed at an upper portion, and a space portion is formed at a lower portion. A case in which a communicating discharge port is formed, a first valve body closing the inflow port and a second valve body closing the discharge port are supported, and when one of the valve bodies is in a closed state. And an actuating member that is swingably attached to the space of the case so that the other is opened, and a biasing unit that biases the actuating member in the direction of closing the inlet with the first valve body. A filter in which a peripheral portion is attached substantially horizontally between an inflow port and an outflow port facing above the discharge port in the space portion of the case, and a central portion of which is vertically flexible with respect to the peripheral edge portion. And a weight attached to the center of the filter body Filtration and wherein the.