JPS6234058Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fully automatic single-operation valve, and more particularly to a fully automatic single-operation valve for a rapid pass device.

As is well known, rapid filtration equipment involves various processes, such as a filtration process, a backwashing process, a washing process, etc., and it is necessary to convert the water flow each time. Therefore, these complicated operations can be easily performed with a single operating valve.
A single-operation valve that can operate reliably is highly valued, and a fully automatic single-operation valve that automatically controls the single-operation valve has been proposed. For example, Jitsukō 49-23314
References such as issues can be found here and there. However, conventional fully automatic single-operation valves of this type have a complicated mechanism and lack of positive action.

In view of the above, the present invention has a simple structure and is a positive actuator that generates operation signals for each process using a combination of limit switches.Moreover, when the main shaft is pulled up, which will be described later, the signal is sent to the valve chamber through a bypass path. The object of the present invention is to provide a fully automatic single-operation valve with a structure capable of reducing pressure.

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

Reference numeral 1 denotes a water passage 3 that communicates with the upper part of the filter machine (not shown) via an upper pipe 2, a water channel 5 that communicates with the lower part of the filter machine via a lower pipe 4, and a water passage 5 that communicates with the upper part of the filter machine (not shown) through a lower pipe 4. The valve body has a drainage channel 6 for discharging water and a sampling channel 7 for draining collected clear water in four directions, and a bypass channel 8 communicating with the drainage channel 6 is bored in the center of the valve body 1. It is set up. Reference numeral 9 denotes a water inlet 10 that communicates with the water passage 3 bored in the valve body 1, and water inlets 10 and 11 that communicate with the drainage channel 6 bored in the valve body 1 (however, the water inlets 10 and 11 will be described later). (through a convex chamber), a water inlet 13 that communicates with a water passage 5 bored in the valve body 1, and a water inlet 1 that communicates with a water intake channel 7 bored in the valve body 1.
4 and 13 (however, the water holes 14 and 13 are communicated with each other through a convex chamber, which will be described later). , 12, 13, and 14 are drilled concentrically. A water inlet 15 formed in the center of the valve seat 9 is configured to communicate with the bypass passage 8 of the valve body 1. Further, the inner water inlet 10 of the valve seat 9 communicates with a sub-chamber 10' as shown in FIG. 3, and the so-called water inlet 10 and the sub-chamber 10' form a substantially half-moon shape. 16 is a valve cover provided with a raw water inlet 18 connected to a raw water pipe 17;
An operating valve main shaft 19 is inserted into the valve 6, and the main shaft 19 is rotatably provided and configured to be freely movable in the axial direction (in the vertical direction in the drawing). The lower end of this main shaft 19 is a valve chamber A made up of a valve cover 16 and a valve seat 9.
A bypass valve 22 is fixed to the lower end of the rotor guide plate 21 having a rectangular shape, and a bypass valve 22 that can move freely toward and away from the water inlet 15 of the so-called valve seat 9 that controls the opening and closing of the bypass passage 8. . On the other hand, a rotor 24 is attached to the rotor guide plate 21 via a rotor guide pin 23, and the length of the rotor guide pin 23 is limited to the rotor guide plate 21.
1 is configured to move up and down in the axial direction, and as will be described later, when the rotor guide plate 21 is pulled up past the upper limit of the rotor guide pin 23, the rotor 24 is suspended and its rotation is easy. It becomes. The rotor 24 is provided with a raw water port 25 that fits any one of the water ports 10 to 14, and a raw water port 25 that fits any one of the water ports 10 to 14.
A convex chamber 26 communicating with any two of the 14 is provided. As will be described later through this convex chamber 26, the water passage 3 of the valve body 1 is communicated with the water passages 10, 11 of the valve seat 9 and the drainage passage 6 of the valve body 1 in the backwashing process, and in the cleaning process The water passage 5 of the valve body 1 is communicated with the water passages 13, 12 of the valve seat 9, and the drainage passage 6 of the valve body 1. and valve body 1
The configuration is such that the intake channel 7 is in communication with the sampling channel 7. 27
are the inner lid surface of the valve cover 16 and the rotor guide plate 21
A spring provided between the rotor guide plate 21 and the rotor guide plate 21 is pressed downwardly, and the return of the main shaft 19 is secondarily controlled via the rotor guide plate 21. On the other hand, the upper end of the main shaft 19 projects from the valve cover 16, and the upper end has several notches 28a, 28b, 28c corresponding to each process such as filtration, backwashing, and cleaning.
A connecting flange 28 having a diameter is connected to the connecting flange 28. The connecting flange 28 is provided with a control cam 29 having a screw 31 on the inner surface of the hollow portion 30 and a recess 32 on the outer surface. 33 is inserted into the hollow part 30 of this control cam 29, and the screw 3
1. This rotating body 33 is mounted on an output shaft 35 supported on a frame 34 provided on the valve cover 16. It is constantly pressed downward by a wound spring 36. 38 is a control plate provided on the flange body 33b of the rotating body 32. 40 is a gear fixed to the upper end of the output shaft 35;
is configured to mesh with a gear 42 fixed to the output shaft of a motor 41 provided on the frame 34, so that the rotation of the motor 41 is transmitted, and the output shaft 35 is rotated in the forward and reverse directions through these drive mechanisms. It's like this. 43 is each notch 2 of the connection flange 28
8a, 28b, and 28c, and is firmly attached to a bolt 44 provided on the bottom plate of the frame 34, and is formed thick enough to accommodate the rise and fall of the connection flange 28. . Note that L _S1 , L _S2 , L _S3 , and L _S4 are limit switches provided on the frame 34, and 45 is a cover.

Next, to explain the operating state of the present invention, the motor 4
1 rotates the gear 40 meshing with the gear 42 via the gear 42, and this rotation is transmitted to the output shaft 35. The rotation of the output shaft 35 is further transmitted to a rotating body 33 which is mounted on the output shaft 35 and has a screw 33a provided on its outer periphery. As the rotating body 23 rotates, the control cam 2 is screwed onto the rotating body 23.
9 sequentially rises upward in the axial direction (FIG. 4A), thereby sequentially pulling up the operating valve main shaft 19 connected via the connecting flange 28. Therefore, the bypass passage 8 with the bypass valve 22 pulled up is opened, and a portion of the raw water that has entered the valve chamber A is discharged from the drainage passage 6 via the bypass passage 8. Then, when the upper limit is reached, the control cam 29
The rise of the rotary body 33 is restricted by the flange body 33b of the rotary body 33, and the rotary body 33 rotates together with the rotary body 33 (FIG. 4B). Further, as the control cam 29 rotates, the connecting flange 28 and the main shaft 19 also sequentially rotate, whereby the rotor 24 fixed to the main shaft 19 via the rotor guide plate 21 and the rotor guide pin 23 is rotated to a predetermined position. As the position of control cam 2 is reached, the control cam 2
The limit switch L _S2 is inserted into the recess 32 provided in the connecting flange 28, and the limit switch L _S2 is turned ON, and the ratchet pawl 43 is inserted into the notch 28b of the connecting flange 28, causing the motor 41 to rotate in the reverse direction. This reverse rotation causes the output shaft 35, rotary body 33, etc. to rotate in the reverse direction (Fig. 4 C), and as a result, the control cam 29, the connecting flange 28, and the main shaft 19 are sequentially pushed downward (the fourth Figure d) Motsute bypass valve 2
2 closes the bypass passage 8, and the rotor 2
4 is kept stationary at a predetermined position, for example, the backwashing process position, as described above. Then, although the output shaft 35 and the like rotate in the opposite direction, the main shaft 19 and the connecting flange 28 are restricted from being pressed down, so the rotating body 33 reversely rotates the spring 36 with the screw 33a provided on its outer periphery. The control plate 38 provided on the rotating body 33 rises by itself while being compressed, and when it reaches its rising limit,
is activated by the limit switch L _S4 , which turns on and stops the rotation of the motor 41, and the lifting of _the rotating body 33 and the rotation of the output shaft 35, etc. are stopped (FIG. 4 E). On the other hand, when this limit switch L _S4 is turned on and the limit switch L _S2 is turned on,
In combination with ON, an operation signal for each process, such as a backwashing process, is generated, a timer (not shown) is activated, and this process is performed for a predetermined period of time. That is, raw water inlet 18
The raw water flowing into the valve chamber A from the raw water port 25→
Water inlet 13 of valve seat 9 → water passage 5 of valve body 1 → lower pipe 4 → reaches the lower part of the filter, ascends inside and from the upper part to upper pipe 2 → water passage 3 of valve body 1 → valve seat 9
The water inlets 10 and 11 (communicated through the convex chamber 26) → backwash the valve body 1 and discharge from the wash drainage channel 6, thus completing the backwashing process. Then, the motor 41 is driven again, and the output shaft 35 is rotated in the forward and reverse directions for a predetermined period of time, the rotating body 33 is rotated, and the control cam 29, the connecting flange 28, and the main shaft 19 are moved up and down and rotated, in the same way as in the process described above. , the bypass passage 8 is opened and closed, and the rotor 24 is rotated, so that the rotor 24 is stopped at a predetermined position, for example, a cleaning process position. During this process, the ratchet pawl 43 is engaged with the notch 28c of the connection flange 28, and the limit switch L _S3 enters the recess 32 of the control cam 29 and is turned on. Then, as the output shaft 35 and the like rotate in the opposite direction, the rotation of the motor 41 is stopped by the relationship between the control plate 38 and the limit switch L _S4 due to the rise of the rotating body 35, which turns on the limit switch L _S4 and stops the rotation of the motor 41. However, these operations will be stopped. on the other hand,
A combination of turning on the limit switch L _S4 and turning on the limit switch L _S3 generates an operation signal for each process, such as a cleaning process, and a timer (not shown) is activated to carry out this process for a predetermined period of time.
In other words, the raw water flowing into the valve chamber A flows through the raw water port 25→
From the auxiliary chamber 10' of the valve seat 9 to the water inlet 10 -> the water passage 3 of the valve body 1 -> the upper pipe 2 -> the upper part of the filter, through which it flows, and from the bottom to the lower pipe 4 -> the water passage of the valve body 1 5→Water ports 13, 12 of the valve seat 9 (communicating through the convex chamber 26)→Back cleaning of the valve body 1 and discharged from the cleaning drainage channel 6, thus completing the cleaning process. Then, the motor 41 is driven again to rotate the output shaft 35 in forward and reverse directions for a predetermined period of time and to rotate the rotating body 33 in the same manner as in the above-mentioned backwashing step.
The control cam 29, the connecting flange 28, and the main shaft 19 are rotated, and the control cam 29, the connecting flange 28, and the main shaft 19 are moved up and down and rotated, the bypass passage 8 is opened and closed, and the rotor 24 is rotated, so that the rotor 24 remains stationary at a predetermined position, for example, an over-stroke position. be done. During this process, the ratchet pawl 43 is engaged with the notch 28a of the connecting flange 28, and the limit switch L _S1 enters the recess 32 of the control cam 29 and is turned on. Then, output shaft 3
Similarly to the above-mentioned backwash process, the limit switch L _S4 is activated due to the relationship between the control plate 38 and the limit switch L _S4 due to the rise of the rotating body 35.
When turned ON, the rotation of the motor 41 is stopped, and these operations are stopped. On the other hand, when the limit switch L _S4 is turned on and the limit switch L _S1 is turned on, an operation signal for each process, for example, an over-process is generated, and a timer (not shown) is activated to carry out this process for a predetermined period of time. That is, the raw water that has flowed into the valve chamber A flows through the raw water port 25 → the water inlet 10 of the valve seat 9 → the water passage 3 of the valve body 1 → the upper pipe 2 → the upper part of the filter, flows down inside, and flows into the lower part. Then, the water flows out from the lower pipe 4 → the water passage 5 of the valve body 1 → the water passage ports 13 and 14 of the valve seat 9 (communicated through the convex chamber 26) → the intake passage 7 of the valve body 1, and the above-mentioned overstep is completed. Water treatment is performed by repeating this series of operations.

As detailed above, the present invention uses forward and reverse rotation of the motor to transmit the forward and reverse rotation of the output shaft, the forward and reverse rotation of the rotating body, and the vertical movement of the control cam to the main shaft via the connecting flange, causing the rotor to rise and rotate. This structure simplifies the structure and allows each member to move smoothly and reliably. Furthermore, since operation signals for each process are generated through the relationship between the limit switch, the control cam, and the control board, there is no malfunction and reliability can be expected. Furthermore, since the structure is provided with a bypass passage, it has a secondary effect such as being able to reduce the pressure inside the valve chamber.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view with the cover removed, Fig. 2 is a sectional view, Fig. 3 is a cross-sectional view of the valve chamber, and Fig. 4 FIGS. 5A to 5E are explanatory diagrams showing the operating state. 1... Valve body, 3, 5... Conduit, 6... Drain channel, 7... Intake channel, 8... Bypass path, 9... Valve seat, 10-15... Water inlet, 16... Valve cover,
19...Main shaft, 21...Rotor guide plate, 22
... Bypass valve, 24 ... Rotor, 26 ... Convex chamber, 28 ... Connection flange, 29 ... Control cam,
30... Hollow part, 31... Screw, 33... Rotating body, 33a... Screw, 33b... Flange body, 35...
Output shaft, 36... spring, 38... control board,
43... Ratchet claw, L _S1 to L _S4 ... Limit switch, A... Valve chamber.

Claims (1)

[Scope of utility model registration request] A valve main body, which is formed by drilling a water passage, a drainage channel, and a sampling channel in four directions that communicate with the filtration machine, and a bypass channel that communicates with the drainage channel in the center thereof, and a valve body that is mounted on the valve body. a valve seat having a plurality of water inlets and a sub-chamber corresponding to each of the water passages, drainage channels, and intake channels, and a bypass passage; and a valve cover having a raw water inlet fixed to the valve body; A main shaft inserted so as to be freely movable in the axial direction, a rotor guide plate provided at the lower end of the main shaft and equipped with a bypass valve for opening and closing the bypass passage, and a rotor guide plate for regulating the rotor guide plate and the main shaft. a spring provided between the rotor guide plate and the valve cover; a rotor provided with a water inlet and a convex chamber that fit the water inlet of the valve seat attached to the rotor guide plate via a guide pin; A control cam provided on the upper end of the main shaft via a connecting flange, a rotating body screwed into the control cam, and a frame provided on the valve cover from which the rotating body is suspended, and the rotating body is inserted into the frame. An output shaft whose outer circumferential surface is wrapped with a spring that constantly presses downward; a drive mechanism disposed on a frame that controls the drive of this output shaft; and a control plate for the control cam and the rotating body disposed on the frame. The output shaft is rotated by the drive mechanism, and the rotating body is rotated through the rotation of the output shaft. A fully automatic single-operation valve characterized by rotating or vertically moving a control cam screwed onto a shaft, a connecting flange, a main shaft and a rotor guide plate, and a bypass valve, and rotating a rotor.