JP3298491B2 - Multi-branch valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-way valve type multi-branch valve in which a valve body has a substantially cubic shape and a plurality of valve bodies can be freely connected and interlocked.

[0002]

2. Description of the Related Art As is well known, this type of valve is a device that can adjust the angle (open / close) of a valve provided in a valve body by rotating a valve shaft. This valve is provided, for example, in the middle of a pipe, and the flow rate of a fluid such as a liquid or a gas is adjusted by rotating a valve shaft to a predetermined valve angle using a handle or a motor, or a discharge pipe connection port. If there are a plurality of fluids, one of the valves can be arbitrarily closed and the other can be opened to take out fluid from either one.

FIG. 9 is a sectional view showing a conventional valve. The valve 101 shown in this figure is roughly divided into a valve main body 102, a valve ball 103 provided in the valve main body 102, and a drive unit 104 with a speed reducer for rotating the valve ball 103. The valve body 102 has three pipe connection ports 105a, 105b, 1
05c, these connection ports 105a, 10c
Reference numerals 5b and 105c communicate with a storage chamber 106 in which the valve ball 103 is stored. In addition, piping connection port 10
On the other side of 5a, an adapter 108 is connected via a thin tube 107.
The adapter 108 is provided with a drive unit 10.
4 is fixed. The rotation axis of the driving unit 104 is
The shaft 109 is connected to the valve ball 103. A passage 110 is formed in the valve ball 103 so that the connection port 105a and the connection port 105b communicate with each other or the connection port 105a and the connection port 105c communicate with each other according to a change in the angle of the valve ball 103. Has become. The hood 111 for covering the driving unit 104 is fixed to the adapter 108.

[0004] Such a valve 101 is used as follows. The piping connection ports 105a, 10a of the valve body 102
Pipes (not shown) are connected to 5b and 105c. Here, it is assumed that the pipe connection port 105a is on the fluid inflow side, and the pipe connection ports 105b and 105c are on the fluid discharge side. Now, the driving unit 104 is rotated to rotate the valve ball 10.
Assume that the third passage 110 is oriented as shown. Then
The fluid on the pipe side of the pipe connection port 105a is
5b flows into the pipe side.

Further, when the drive unit 104 is rotated so that the passage 110 of the valve ball 103 faces the opposite side of the drawing, the fluid on the pipe side of the pipe connection port 105a flows into the pipe side of the pipe connection port 105c. According to such a valve, for example, the fluid in one supply pipe is distributed to the discharge pipe in one direction.

[0006]

As described above, such a conventional valve is driven by using a single power source in principle, and using such a valve, for example, When distributing two systems of fluids to two systems of pipes at the same time, an integral molded valve structure having a complicated structure capable of distributing the two systems is used in advance, or two single valves are arranged in parallel. It is used in combination. When two single valves are used in combination, there is a disadvantage that the installation space becomes large, the procedure for performing this control and the electric circuit become complicated, and the two systems are divided. Integrally molded valves with a possible complex structure are so-called custom-designed, so high costs were unavoidable.

Further, since the integrally molded valve having the above-mentioned complicated structure has a complicated structure, a stronger torque is required to rotate the valve ball in the housing chamber. There has been a problem that the outer peripheral surface of the ball and the O-ring are mechanically worn. Furthermore, when such a conventional valve is incorporated in a pipe, the valve ball and the pipe connection port are always exposed to the fluid, and particularly, impurities adhere to the vicinity of the contact surface between the valve ball and the pipe connection port. There was a drawback that it would accumulate. For example, when the fluid is tap water, calcium, magnesium, iron, etc. contained in tap water adheres and accumulates on the contact surface between the valve ball and the pipe connection port, and when the valve is operated by a motor drive, etc. The deposits may damage the motor, or as the valve rotates, the deposits and deposits on the valve ball may be entrained and taken into the storage chamber. As a result, the O-ring may be disposed there. There is a drawback in that water leakage occurs due to damage to the motor, and the rotation of the valve is locked due to entrainment, causing a serious problem such as overheating of the motor resulting in stoppage on the way.

Therefore, the present invention solves the above-mentioned drawbacks of the conventional multi-branch valve, makes it possible to form a multi-branch valve having the same shape that can be connected, and makes it possible to distribute multiple systems by an arbitrary combination. In addition, since it has a simple structure,
It is an object of the present invention to provide a multi-branch valve that enables motor drive without requiring a strong torque, further reduces mechanical wear, and does not cause a failure due to deposits.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has one inlet pipe connection port and a plurality of discharge pipe connection ports, and has a hole for holding a valve shaft and a hole for insertion. The three-dimensional valve body has a convex shaft bearing on one side and a concave shaft bearing on the other side, a valve shaft with a cylindrical hole on the side, and a plurality of precision balls in the valve shaft hole with a spring inside, After being stored in the main body, the cover was attached and fixed with bolts and nuts. By rotating the convex part or concave part of the valve shaft by the handle or motor, when the precision ball comes to the position of the discharge pipe connection port inside the main body, the precision ball closes the discharge pipe connection port with the force of the spring, and the precision ball is discharged This is a valve in which the discharge pipe connection port is opened when leaving the position of the pipe connection port. In addition, the present invention provides a method for rotating a plurality of valves with a single handle or a motor by adjusting the unevenness of a valve shaft to arbitrarily increase the number of intake pipe connection ports and discharge pipe connection ports, or The connection destination of the connection port or the discharge pipe connection port can be changed to any predetermined connection destination.

[0010] Namely, the invention according to the claims 1, in a multi-branch valve has a vertical through hole in the shaft central axis, inserting the spring means disposed two balls at both ends of the through hole, the two spheres is formed slightly protrude, and a shaft was reachable by uneven fitting two or more, the opened shaft bearing hole and the shaft receiving one end of said shaft is inserted in the direction of the central axis of the shaft a valve body having a shaft hole that, the valve
Are two or more openings in the shaft hole of the body, the shaft
By but be rotated the shaft hole at a predetermined angular position, one or a discharge pipe connection port of said opening Ru is closed by both the two or more discharge distribution <br/> pipe of said two spheres Place the valve on a parallel surface different from the surface connecting the connection port centers.
And intake pipe connecting port which is opened to the shaft bore of the body, possess a valve cover having a shaft bearing bore for receiving the shaft of the other end of the shaft, taken was fluid said Sha
And flows to the discharge pipe connection port which is not blocked along with the shaft .

The invention according to claim 2 of the present application is characterized in that, in the multi-branch valve according to claim 1, the valve body is formed in a substantially cubic shape.

Further, according to a third aspect of the present invention, in the multi-branch valve according to the first aspect, at least one of the two or more pipe connection ports opened in the shaft hole is 180 °. The multi-branch valve according to claim 1, wherein the multi-branch valve is formed at a predetermined angle out of the range.

According to a fourth aspect of the present invention, in the multi-branch valve according to the first aspect, the pipe connection port opened to the shaft hole has an O-ring at an opening edge thereof, and is connected to the sphere. It is characterized in that the space is closed.

The invention according to claim 5 of the present application is directed to claim 1
In the multi-branch valve according to the end of the shaft,
One is a rectangular convex shape, the other is a rectangular concave shape,
It is characterized in that two or more shafts are configured to be connectable by fitting the ends.

[0015] The invention according to claim 6 of the present application is the above-described claim 2.
In the multi-branch valve according to the above, the multi-branch valve configured by connecting the two or more shafts is characterized in that the mutual through holes are through holes penetrated at different angles.

The invention according to claim 7 of the present application is directed to claim 2
In the multi-branch valve according to the fifth aspect, the cubic valve body is configured to be connectable in a large number in the axial direction of the shaft.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a valve according to a first embodiment of the present invention, in which FIG. 1 (a) is a perspective view of the valve as viewed from the upper right,
FIG. 1 (b) is a view of the same viewed from the back.

1 (a) and 1 (b), reference numeral 1 denotes a valve according to the present invention, and 2 denotes a shaft portion 2 rotatably inserted through the valve 1. FIG. In (b), the shaft shaft ends 2a and 2b are provided, and the male shaft shaft end 2a extends in the horizontal direction shown in FIG.
However, in FIG. 1B, on the opposite side, a female shaft end 2b with which the male shaft end 2a is engaged.
Is formed.

The valve 1 is provided with three pipe connection ports 3a, 3b, 3c.
The pipe connection port 3a and the pipe connection port 3b communicate with each other or the pipe connection port 3a and the pipe connection port by rotating the shaft portion 2 inserted into the valve 1. 3c. That is, the pipe connection ports 3b and 3c are formed in the same cross section.

In order to explain this relationship in detail, the structure of the valve 1 will be described. FIG. 2 is an assembly configuration diagram including components constituting the valve 1 according to the embodiment of the present invention. In FIG. 2, 13 is a valve cover, 14
Is a shaft main body constituting the shaft portion 2.
15 is a valve body, 16b and 16c are O-ring holders, 17 is a quick joint, 18, 19, and 20.
Is an O-ring, 21 is two precision spheres, 22 is a spring, 23 is a shaft hole through which the shaft main body 14 is inserted, 24 is a shaft bearing hole provided in the center of the valve cover, It has the same diameter as the shaft bearing hole 26 (not shown in FIG. 2) provided in the rear back wall of the valve body 15. Reference numeral 12 denotes the valve cover 13
Is a bolt hole for fixing the bolt to the valve body 15.

Also, 25a (not shown in FIG. 2), 25
b and 25c are pipe connection ports 3a, 3b and 3c, respectively.
The joint connection hole 25a for taking in is formed in a plane perpendicular to the shaft hole 23 (X
1, the center line is formed on the Y1 plane), and the joint connection holes 25b and 25c have their center lines formed on the same plane (the X2 and Y2 planes), respectively.
2, Y2 plane) is formed as a plane different from the aforementioned plane.

FIG. 3 shows the shape of the shaft body 14. 3A and 3B are diagrams showing a schematic shape of the shaft main body 14, FIG. 3A is a front view thereof, and FIG.
It is AA sectional drawing shown to (a). As is clear from FIGS. 3A and 3B, the shaft body 14
The central portion has a large-diameter shaft portion 27 having a size through which the shaft hole 23 of the valve body 15 is inserted, and both ends of the large-diameter shaft portion 27 have a shaft bearing hole 24 provided at the center of the valve cover and a rear portion of the valve body 15. A small-diameter shaft portion 28, 28 is fitted into a shaft bearing hole 26 (not shown in FIG. 2) of the wall to form a double cylindrical shape, and the spring hole is inserted into the central large-diameter shaft at a predetermined position on the large-diameter shaft. 29 are formed. Also, both ends of the small diameter shaft portions 28, 28 are O
O-ring grooves 30, 30 with which the rings 19, 19 are engaged are formed, and when the small diameter shaft portions 28, 28 are inserted through the shaft bearing holes 24, 26, the O-ring grooves 30, 30 are formed from the shaft bearing holes 24, 26. It has a structure in which the fluid inside does not leak.

The end 2a of the small-diameter shaft portions 28, 28 close to the spring hole 29 is connected to the spring hole 2.
9 is formed as a male shaft shaft end 2a (hereinafter, simply referred to as "male shaft end 2a") having a convex rectangular portion 31. The end 2b is located far from the spring hole 29. Is a concave shaft end (hereinafter simply referred to as a "female shaft") having a concave groove 32 in which the rectangular shaft end 2a fits substantially at the center of the cylinder so that the male shaft end 2a fits. End 2b ").

That is, the shaft body 14 is inserted with a predetermined gap so that the fluid flowing around the shaft hole 23 of the valve body 15 can freely flow, and the spring hole 29 is The spring hole 29 is provided coaxially with the joint connection holes 25b and 25c on the discharge pipe connection port side of the main body 15. Therefore, if the precision spheres 21, 21 having a size to close the joint connection holes 25 b, 25 c are arranged at both ends of the spring 22 inserted into the spring hole 29, the joint connection holes 25 b, 25
c has the same cross section but is provided at a right angle position, so that one of the precision spheres 21 always closes one of the joint connection holes 25b and 25c, and One is the shaft hole 2 in the valve body 15.
3 will be located with a gap.

Then, the fluid that has flowed in flows into the shaft main body 14 and the valve main body 1 through the joint connecting hole 25a on the inflow side.
5 in the direction of the joint connection holes 25b and 25c through the gap between the shaft hole 23 and the shaft hole 23. However, one of the joint connection holes 25b, 25c is connected to the precision sphere 21,
Because it is blocked by any one of 21
The fluid flows toward any of the unobstructed joint connection holes 25b, 25c among the joint connection holes 25b, 25c, and flows through the joint connection hole 25b or 25c to the pipe connection port 3b or 3c.

That is, the valve 1 according to the present embodiment
Is that one intake pipe connection port 3a and two discharge pipe connection ports 3b, 3c have their central axes formed in two planes (two planes indicated by X1, X2 and Y1, Y2), and The shaft hole 23 of the valve is formed in these two planes in the Z-axis direction, and two joint connection holes 25 are formed.
The precision spheres 21, 21 are formed on the surfaces b, 25c by the spring 22 so as to close one of the two joint connection holes 25b, 25c.

This relationship will be described in detail with reference to the drawings.
FIG. 4 shows a valve assembled and formed as described above.
FIG. 5 is a diagram illustrating a flow path in which a fluid flowing from a pipe connection port 3a (not shown in FIG. 4A) flows out of the pipe connection port 3b or 3c.

In FIG. 4, FIG. 4 (a) is a view showing a three-dimensional flow path of the valve 1, in which fluid flows in from the pipe connection port 3a and flows out to the pipe connection port 3b or 3c ( In the example shown in FIG. 4A, the fluid flowing from the pipe connection port 3a flows out of the pipe connection port 3b.) 4 (b) and 4 (c) are views showing a cross section along this flow path, and FIGS. 4 (d) and 4 (e) show the shaft body 14.
It is a figure which shows the rotation state of. The male shaft end 2
When a is in the state shown in FIG. 4D, the joint connection hole 25c is closed by the precision sphere 21 and the O-ring 20, so that the fluid flowing from the pipe connection port 3a is not connected to the pipe connection port 3a. Discharge from the mouth 3b. This is shown in FIG. On the other hand, the male shaft end 2a
However, when in the state shown in FIG. 4E, the joint connection hole 25b is closed by the precision sphere 21 and the O-ring 20, and as a result, the fluid flowing from the pipe connection port 3a is Discharge from 3c. Figure 4 shows this situation.
It is shown in (c).

In this embodiment, it is assumed that the shaft 2 is manually rotated.
In such a case, a "knob" may be provided for fitting to the male shaft end 2a or the female shaft end 2b, and the knob may be manually rotated. The shaft 2 may be mounted via a coupling so that a predetermined rotational motion is generated by the rotation of the synchronous motor to rotate the shaft 2.

In the valve 1 according to the present embodiment, the direction of the concave groove 32 of the female shaft end 2 b of the shaft portion 2 of the shaft main body 14 is set to the direction of the spring hole 29. The direction of the spring holes 29 is not limited to this direction. For example, as shown in FIG. 3C, the groove 32 of the female shaft end 2b is formed. May be formed in a direction perpendicular to this direction.

That is, FIG. 3 (c) shows that such a shaft end 2 has shaft ends 2a and 2b in which the male type and the female type are configured in reverse, in other words, the female type shaft end 2
b, a groove 32 is formed perpendicular to the spring hole 29, and the convex rectangular portion 31 of the male shaft shaft end 2a is
It is a figure which shows the example of a modified embodiment of the shaft main body 14 'formed in parallel with the said spring hole 29.

Therefore, the spring hole 29
Is formed perpendicular to the concave groove 32 of the female shaft end 2b, so that the outflow direction of the fluid is reversed depending on the rotational position of the shaft main body, for example, the male shaft shaft When the end 2a is in the state shown in FIG. 4D, the joint connection hole 25b is closed by the precision sphere 21b and the O-ring 20, and as a result, the fluid flowing from the pipe connection port 3a is The liquid may be discharged from the connection port 3c, and the distribution path may be as shown in FIG.

Further, in the valve according to the present embodiment, the valve is formed such that two discharge pipe connection ports are formed for one intake pipe connection port. Aside from the outer surface of the shaft hole 23
The relationship between the area of the inner peripheral wall of the O-ring 20 and the size of the O-ring 20 closed by the precision sphere 21
As long as the size can be arranged on the inner peripheral wall of the shaft hole 23, three or four discharge pipe connection ports may be provided. That is, when three discharge pipe connection ports are provided, the joint connection hole 25 is formed as a hexahedron on the same cross section of the inner peripheral wall of the shaft hole 23, and the joint connection hole 25 is provided on three of them. In the case where four discharge pipe connection ports are provided, an octahedron is formed on the same cross section of the inner peripheral wall of the shaft hole 23, and the joint connection hole 25 is formed in four of them. Should be provided.

Next, a valve 40 according to a second embodiment constituted by connecting a valve of the same type to the valve 1 will be described in detail with reference to the drawings. FIG. 5 is an assembly configuration diagram of the valve 40 according to this embodiment. In FIG. 5, reference numeral 40 denotes a valve according to the second embodiment. The valve 40 according to the second embodiment includes two valves 1 according to the first embodiment of the present application. The valve 1 is of the same type as the valve 1 shown in FIG.

That is, the male shaft of the shaft body 14 'is inserted into the concave groove 32 of the female shaft end 2b exposed from the shaft bearing hole 26 of the valve body 15 of the valve 1 shown in FIG. Valve 40 connected and configured so that the convex rectangular portion 31 of the shaft end 2a is fitted.
The other parts constituting the valve 40 are the same as those shown in FIG. 2 described above, and these same parts are combined to constitute the valve according to the second embodiment. I do. Therefore, in FIG. 5, the newly added parts are denoted by the same reference numerals as those in FIG.

FIGS. 6 (a) and 6 (b) are schematic perspective views for explaining the operation of the valve 40 connected in series, and FIG. 6 (c) shows a fluid flowing through the valve 40. It is a figure which shows a circulation path | route, Among them, the circulation path of the valve 1 of the left side is an AA line, and the circulation path of the valve 1 'of the right side is
This is indicated by the line BB. 6 (d) and 6 (e)
It is sectional drawing of the surface shown by the said circulation path AA line and BB line, and shows the spring hole 29,29 'of each said shaft main body 14,14', and the precision sphere 21,21,2.
Depending on the position of 1 ′, 21 ′, joint connection holes 25b, 25
This shows a relationship in which b ′, 25c, and 25c ′ are closed, and the inflowing fluid is discharged from only one pipe connection port 3c, 3b ′ or 3b, 3c ′. That is, FIG.
Indicates that the convex rectangular portion 31 of the shaft shaft end 2a is in a vertical position. In this state, the fluid flowing from the pipe connection port 3a in the left valve 1 is the same as that in FIG.
As shown in (d), discharge is performed only from the pipe connection port 3c,
Similarly, in the right valve 1 ', the fluid flowing from the pipe connection port 3a' is discharged only from the pipe connection port 3b 'as shown in FIG.

However, as shown in FIG. 6 (b), when the convex rectangular portion 31 of the shaft shaft end 2a is in the horizontal position, the fluid flowing from the pipe connection port 3a in the left valve 1 is 6 (e), the inflowing fluid is discharged only from the pipe connection port 3b, and the fluid is similarly discharged from the right valve 1 'in FIG.
The fluid flowing through the flow path shown in FIG.
It is discharged only from the pipe connection port 3c '.

As described above, in the valve 40 according to the second embodiment, the valve 1 and the valve 1 'are connected,
As described above, the convex rectangular portion 31 of the male shaft shaft end 2a is provided with the spring hole 29 in the valve 1 '.
Is used, the pipe connection ports 3a, 3a 'arranged on the same side surface are used.
The fluid flowing into the pipes is connected to two sets of pipe connection ports 3 which are orthogonal to each other.
Fluids can be discharged to only two sides of b, 3b 'and 3c, 3c', and appropriate piping equipment can be provided. Further, by rotating the shaft end 2a or 2b of the connected shaft bodies 14 and 14 ', the discharge direction can be easily changed.

Next, a synchronous motor 41 is connected to the connected valve 40 via a coupling 42.
A motor-driven valve connection for driving the valve 40 by a motor will be described.

FIG. 7 shows a valve 1 and a valve 1 ′ having the same assembly parts connected to each other, or
The valve 1 'having only the shaft body 14' is connected, and the valve 1 'having the shaft body 14 is connected to the valve 1 having the shaft body 14', and the valve 1 is rotated by the driving force of the motor. FIG. 4 is a diagram showing an outline of a motor valve connection for switching a fluid discharge direction. FIG.
FIG. 7A shows a state in which the valve 40 and the motor 41 are connected via a coupling 42, and FIG.
(B) is a diagram illustrating a valve 40 in the valve 40.
And the valve 1 ′ are connected to the shaft body 14 or 1
4 'female shaft end 2b with male shaft end 2b
It is the figure which showed the outline | summary which combined by connecting a '.

Further, FIG. 7C shows that the valve 40 and the synchronous motor 41 are coupled by a coupling 42 having a concave groove 43 in which the male shaft shaft ends 2a, 2a 'of the shaft bodies 14, 14' are fitted. It is a figure showing the outline which connects. As described above, when the discharge destination of the valve 40 is remotely controlled, for example, as shown in FIG.
By rotating a rotating piece 46 having a 180 ° inclination 44 and a 90 ° inclination 45 as shown in FIG. 7, this rotation range is detected by a 180 ° micro switch 47 and a 90 ° micro switch 48, CP
U (microprocessor) 49, and the CPU
S (triac) based on the sent rotation range signal
, And the synchronous motor 41 may be driven in a predetermined range based on the output. With this configuration, the rotation angles of the shaft bodies 14 and 14 ′ can be changed by driving the synchronous motor 41, and the discharge destination of the fluid to the valve 40 can be switched and changed remotely. Can be.

As described above, two types of the shaft main bodies 1 are provided.
By appropriately combining two sets of valves 1 and 1 ′ having 4 and 14 ′ to form a connected valve 40,
A four-way valve that discharges in various directions can be configured very easily, and the discharge destination can be easily operated remotely.

In the above embodiment, the shaft shaft end 2a and the shaft end 2b are connected to form a valve. However, the same valve 1 is used to connect the pipe connection port 3b. By connecting to the pipe connection port 3a 'via the connection tube 53, the inflow of fluid from one
It can also be configured as a so-called four-way valve that can be switched to the other side. A valve according to a third embodiment having such a four-way valve will be described.

FIG. 8 shows that two independent (unconnected) valves 1 and 1 'are used to connect the pipe connection port 3b of the valve 1 to the pipe connection port 3a' of another valve 1 '. A valve 55 having a configuration connected via
(In FIG. 8, for convenience,
The valve on the left is represented as valve 1 and the valve on the right is represented as valve 1 ′.
(Dash sign). ).

As apparent from FIG. 8A, FIG.
In the valve 55 shown in FIG.
Is perpendicular to the shaft end 2a 'of the valve 1'.
Is positioned horizontally, the fluid flows in from the pipe connection port 3a of the valve 1, but its shaft shaft end 2a
Are located vertically, so the pipe connection port 3c of the valve 1
Discharge only from Therefore, fluid does not flow into the valve 1 'connected to the pipe connection port 3b of the valve 1 via the connection tube 53, and after all, from the pipe connection ports 3b' and 3c 'of the valve 1'. No fluid is ejected. Eventually, in this connection configuration, the fluid
The fluid flows in from the pipe connection port 3a of the valve 1, discharges only from the pipe connection port 3c of the valve 1, does not discharge from the other pipe connection ports 3b 'and 3c' as a whole, and the fluid flows in FIG. In a), discharge is performed only in the upward direction.

Next, as shown in FIG. 8 (b), when the position of the shaft end 2a 'of the valve 1' is kept as it is and the position of the shaft end 2a of the valve 1 is made horizontal, the fluid is Flow from the pipe connection port 3a of the valve 1 and its shaft end 2a is positioned horizontally, so that it is discharged only from the pipe connection port 3b of the valve 1,
b is connected to the pipe connection port 3a 'of the valve 1', and the shaft end 2a 'of the valve 1' is located horizontally, so that the fluid is connected to the pipe connection port 3 of the valve 1 '.
The discharge is performed only from c ′, and as a whole, the discharge is not performed from the other pipe connection ports 3c and 3b ′. In FIG. 8B, the discharge is performed only in the horizontal direction.

Further, as shown in FIG. 8 (c), when the position of the shaft end 2a of the valve 1 is left as it is, and the position of the shaft end 2a 'of the valve 1' is made vertical, The fluid flows in from the pipe connection port 3a of the valve 1 and is discharged only from the pipe connection port 3b of the valve 1 because the shaft end 2a is located horizontally. The pipe connection port 3a ′ of the valve 1 ′ is connected, and the shaft end 2a ′ of the valve 1 ′.
Is located vertically, the fluid is discharged only from the pipe connection port 3b 'of the valve 1', and is not discharged as a whole from the other pipe connection ports 3c, 3c '. )
In, the ink is discharged only downward.

The valve 55 shown in this embodiment
, The shaft end 2a of the valve 1 is vertically
Also, the shaft end 2a 'of the valve 1' is positioned horizontally so that these shaft ends 2a, 2a '.
Is configured to perform independent movement, but the valve 1 or the valve 1 ′ is not limited to the single independent configuration described above. For example, the connected valve 40 according to the second embodiment may be used. May be used as the valve 1 or the valve 1 ', and the respective shaft shaft ends 2a, 2a'
In addition, as described above, a motor drive may be used.

Further, two or more valves 1 having exactly the same configuration may be connected by the connection tube 53. Alternatively, the shaft body 14 'having a different shape from the shaft body 14 as described above may be used. Valve 1 or 1 '
Or one or more of them may be combined and connected by the connection tube 53.

[0050]

According to the present invention, a three-dimensional valve body having one intake pipe connection port and a plurality of discharge pipe connection ports, a hole for holding a valve shaft and a hole for insertion is provided. The other has a concave shaft bearing, a valve shaft with a cylindrical hole on the side, and a structure in which a plurality of precision spheres are housed in the hole of the valve shaft with a spring inside, so the convex or concave portion of the valve shaft When the precision sphere comes to the position of the discharge pipe connection port inside the main body by rotating the handle with a handle or a motor, the precision sphere abuts and closes at least one discharge pipe connection port with the force of a spring, and the precision sphere is When leaving the position of the discharge pipe connection port, at least one discharge pipe connection port is in an open state, so that the discharge pipe can be easily switched.

Further, according to the present invention, a plurality of valves can be integrally formed by adjusting the unevenness of the valve shaft, and the valve shaft can be rotated by one handle or motor.

Further, a plurality of valves having the same configuration are combined,
It is possible to configure a discharge destination according to this combination, and further, for a valve shaft to be used, arbitrarily connect a valve body using a valve shaft whose shape and configuration has been changed, or connect a valve pipe, or By connecting in combination, there is an extremely excellent effect that the number of intake pipe connection ports and discharge pipe connection ports can be increased, and the flow can be freely controlled.

Further, in the valve according to the present invention, since the basic configuration of most parts can be made to have the same shape, connection / pipe connection according to a free combination is possible in connection / pipe connection. Therefore, the degree of freedom of design,
It has a great effect of cost reduction. Further, since the valve can be opened and closed simply by rolling the ball and detaching from the pipe connection port, there is an extremely excellent effect that the valve can be opened and closed with a small torque. In addition, since the valve is opened and closed by the rolling of the ball, the wear portion is small, and the adhesion of dust, rust and the like is less likely to occur, which has the effect of significantly improving the valve life.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a valve according to a first embodiment of the present invention, in which FIG. 1 (a) is a perspective view of the valve as viewed from the upper right, and FIG. (B) is the figure which looked at it from the back.

FIG. 2 shows a valve 1 according to an embodiment of the present invention.
FIG. 3 is an assembly configuration diagram including the respective components constituting.

FIG. 3 is a diagram showing a schematic shape of a shaft body 14, FIG. 3 (a) is a front view thereof, and FIG.
It is AA sectional drawing shown in FIG.3 (a), FIG.3 (c)
FIG. 14 is a view showing a shaft body 14 ′ according to a modified embodiment in which the spring holes 29 are formed differently.

FIG. 4 (a) is a view showing a three-dimensional flow path of the valve 1, and FIGS. 4 (b) and 4 (c) are views showing cross sections along the flow path; FIG. 4 (d) (e)
FIG. 3 is a view showing a rotating state of the shaft main body 14.

FIG. 5 shows a valve 40 according to a second embodiment.
FIG.

FIGS. 6A and 6B are schematic perspective views illustrating the operation of a valve 40 according to a second embodiment, which is connected in two rows, and FIG. It is a figure which shows the distribution channel, and FIG.6 (d) (e) is sectional drawing of the said distribution channel.

FIG. 7A is a diagram showing a connection state between the valve 40, the motor 41, and the coupling 42, and FIG.
7B is a diagram showing an outline of connection of the valve 40, FIG. 7C is a diagram showing a connection state between the motor 41 and the valve 40, and FIG. FIG.

8 (a), 8 (b) and 8 (c) show a connection between the pipe connection port 3b of two independent (unconnected) valves 1 and a pipe connection port 3a 'of another valve 1'. Tube 53
FIG. 2 is a schematic diagram of a connection configuration connected via a.

FIG. 9 is a sectional view showing a conventional valve.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Valve, 2 ... Shaft part, 2a ... Male shaft end, 2b ... Female shaft end, 3a ... Pipe connection port, 3b ... Pipe connection port, 3c ... Piping connection port, 14 ... Shaft body, 15 ... Valve body, 18, 19, 20, 20a, 20b ... O-ring, 21, 21a, 21b ... Precision sphere, 22 ... · Spring, 23 · · · shaft hole, 24 · · · shaft bearing hole, 25a, 25b, 25c · · · joint connection hole, 26 · · · shaft bearing hole, 27 · · · large diameter shaft, 28 · · ·・ Small diameter shaft part, 29 ・ ・ ・ Spring hole, 30 ・ ・ ・ O-ring groove, 31 ・ ・ ・ Convex rectangular part, 32 ・ ・ ・ Concave groove, 40 ・ ・ ・ Valve, 41 ・ ・ ・ Synchronous motor, 42 ... coupling, 43 ... concave groove, 44 ... 180 ° tilt, 45 ... 90 ° tilt, 46 ... Rotating top, 47 ... 180 ° micro switch, 48 ... 90 ° micro switch, 53 ... Connection tube, 55 · ..Valve, 101: Valve, 102: Valve body, 103: Valve ball, 104: Driving unit, 105a: Piping connection port, 105b ... Piping connection port, 105c ...・ Piping connection port, 106 ・ ・ ・ Storage room, 107 ・ ・ ・ Narrow tube, 108 ・ ・ ・ Adapter, 109 ・ ・ ・ Shaft, 110 ・ ・ ・ Path, 111 ・ ・ ・ Bonnet,

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F16K 11/00-11/24

Claims (7)

(57) [Claims] A through hole perpendicular to a central axis of the shaft ;
The both ends of the through hole is inserted a spring means disposed two balls, the two spheres are formed by slightly projecting respectively,
A shaft to allow contact by uneven fitting two or more, of the shaft which is open in the direction of the central axis of the shaft one
A valve body having a shaft hole into which the shaft bearing hole and the shaft receiving the end is inserted, is two or more openings in the shaft hole of the valve body, before
The shaft rotates in the shaft hole.
Te different, in a predetermined angular position, and a discharge pipe connection port of said opening in one or both of the two spheres is Ru is closed, around the connecting surfaces of the two or more discharge piping connections Rights
Preparative is opened to the shaft bore of the valve body in the line plane
Possess the incoming connection port, and a valve cover having a shaft bearing bore for receiving the shaft of the other end of the shaft, taken was fluid said sheet
A multi-branch valve, which flows to the unblocked discharge pipe connection port along with the shaft . 2. The multi-branch valve according to claim 1, wherein the valve body is formed in a substantially cubic shape. 3. The method according to claim 1, wherein at least one of the two or more pipe connection ports opened in the shaft hole is formed at a predetermined angle deviating from 180 °. The multi-branch valve as described. 4. The multi-branch valve according to claim 1, wherein the pipe connection port opened to the shaft hole has an O-ring at an opening edge thereof and closes a gap between the pipe and the ball. . 5. An end of the shaft has a rectangular convex shape on one side and a rectangular concave shape on the other side, and is configured so that two or more shafts can be connected by fitting the ends. The multi-branch valve according to claim 1, wherein 6. The multi-branch valve configured by connecting two or more shafts, wherein the mutual through holes are through holes penetrated at different angles. Multi-branch valve. 7. The multi-branched valve according to claim 2, wherein the cubic valve body is configured to be connectable in a large number in the axial direction of a shaft.