JP2000179716A - Valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make manufacturing costs of a construction inexpensive, and suppress generation of an erroneous operation and a failure. SOLUTION: This valve is composed of a double tubular main body 1 having a hollow part between an inner circumferential wall 2 and an outer peripheral wall 3, and a valve element 8 which rotates and slides along an inner surface of the inner circumferential wall 2. A feed port 9 of a fluid is formed on the axial direction of the valve element 8, a plurality of flow passages 10 extending from the feed port 9 toward the inner circumferential wall 2 are radially disposed, a hollow part is partitioned into the numbers corresponding to the flow passages 10 in a circumferential direction, a plurality of draw holes 4 are disposed on the inner circumferential wall 2 at clearances along a circumferential direction within forming ranges of spaces 14, 15, 16, and feeding of a fluid toward optional feeding destinations, feeding of the fluid toward all feeding destinations, and stop of the feeding are controlled by such an assembly that each flow passage 10 and each draw hole 4 are matched or not matched with each other in a rotation stop position of the valve element 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a valve for controlling fluid flow control.

[0002]

2. Description of the Related Art There are numerous types of valves.
Mainly gate valves, stop valves, check valves, cocks, butterfly valves,
They are roughly divided into special valves and the like. These various valves are widely used for structures for various applications including general machines such as air conditioners, refrigerators, and washing machines, and large-scale ones such as chemical plants and power plants. Have been.

[0003]

However, in a structure that functions by sending a fluid to a plurality of destinations as described above, the number of valves for controlling the number of destinations increases as the number of destinations increases. Needed. For this reason, the manufacturing cost of the structure increases, and control and maintenance of each valve become very complicated, and there is a concern that erroneous operation or failure of the structure is likely to occur.

[0004] It is an object of the present invention to provide a valve capable of suppressing the manufacturing cost of a structure at low cost and reducing the occurrence of erroneous operation and failure.

[0005]

According to one aspect of the present invention, there is provided a double tubular main body having a hollow portion between an inner peripheral wall and an outer peripheral wall. And a valve body that rotates and slides along the inner surface of the peripheral wall, forming a fluid supply port in the axial direction of the valve body, and forming a plurality of flow paths extending from the supply port toward the inner peripheral wall. Radially provided,
The hollow portion is circumferentially partitioned into a number corresponding to the flow path, and a plurality of holes are provided in the inner peripheral wall at intervals along the circumferential direction within a range of each space, at a rotation stop position of the valve body. The supply of the fluid to an arbitrary supply destination, the supply of the fluid to all the supply destinations, and the stop of the supply are controlled by matching or mismatching the respective flow paths and the respective holes. Here, the intervals at which the flow paths are radially provided may be directed toward the formation range of each space where each of the flow paths is partitioned, and depending on the correspondence with each hole, the intervals are equal. It may be present or other intervals, and is not particularly limited.

[0006] With such a configuration, the flow paths of the fluid may coincide with or differ from the respective holes in various combinations depending on the position where the rotation of the valve body is stopped.
If any of the flow passages and the holes are matched,
The fluid that has flowed in from the supply port flows into the corresponding space from the hole through the flow path, and is further sent from the space to the target supply destination through the feed port. On the other hand, when the flow path and the hole are not made to coincide with each other by an arbitrary or a reference flow path, the flow path is closed by the inner peripheral wall, so that the fluid does not flow into the space, and Since the supply of the fluid to the supply destination can be stopped, the supply and stop of the fluid to the plurality of supply destinations can be freely controlled by changing the rotation stop position of the valve element.

Here, the hole may be always in communication with each space, but if the hole is provided with an opening / closing means, the fluid flowing into each space of the main body may be provided. Does not flow again into the valve body from another hole, and the fluid can be more reliably sent to the supply destination. Note that the opening / closing means here is usually in a state in which the hole is closed, but it is sufficient if the opening is only released when the flow path and the hole coincide with each other and the fluid is sent out.Specifically, A check valve with an urging member installed on the outer surface side of the inner peripheral wall so as to cover the hole is exemplified.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a cross-sectional view showing a representative embodiment of the present invention, FIG. 2 is a plan view showing an example of the embodiment of the present invention, and FIGS. 3 to 5 show the use of the valve of FIG. FIG. 6 is a plan view showing an embodiment of the present invention. Note that the embodiment shown here is
The case where the valve of the present invention is formed as a three-way valve is shown.

First, an overall description of the valve will be given with reference to FIG. The valve of the present invention has spaces 14, 15, 16 partitioned between the inner peripheral wall 2 and the outer peripheral wall 3 in a number corresponding to the supply destinations A, B, C of the fluid.
A double tubular main body 1 in which a plurality of holes 4 are provided at intervals along the circumferential direction in the formation range of 4, 15, 16 and a fluid supply port 9 at the center, The flow paths 10, 10, and 10 are radially directed toward the inner peripheral wall 2.
And a disc-shaped valve element 8 provided with a reference numeral 10.

First, a hollow portion is formed in the main body 1 by an inner peripheral wall 2 and an outer peripheral wall 3, and each hollow portion extends radially from the inner peripheral wall 2 to the outer peripheral wall 3. Each of the sections is divided into a first space 14, a second space 15, and a third space 16 by 5, 5, and 5, respectively. Further, the outer peripheral wall 3 is provided with a pipe-shaped feeding portion 6 which communicates with each of the partitioned spaces 14, 15, 16 and communicates with the fluid supply destinations A, B, C. The inner peripheral wall 2 has a plurality of holes 4 communicating with the spaces 14, 15, 16.
Are provided at intervals in the circumferential direction, and when the hole 4 coincides with the fluid flow path 10 by rotating the valve body 8,
The fluid sent from the flow path 10 flows into each of the spaces 14, 15, 16 communicating with each other through the holes 4. And
The fluid that has flowed into the corresponding space is sent to the corresponding supply destinations A, B, and C of the fluid through the feed unit 6.

Here, a check valve 11 having a plate-shaped valve portion 12 is provided on the outer surface side of the inner peripheral wall 2 so as to cover each of the holes 4 in order to prevent a reverse flow of the fluid. Preferably, the check valve 11 is normally closed by the urging of a spring 13 provided on the shaft portion, but the flow path 10 and the vent hole 4 coincide with each other, and the pressure of the fluid is applied to the valve portion 12. Only when it is applied, the valve portion 12 opens outwardly against the bias.

On the other hand, the valve element 8 forms a disc,
Further, it is joined to a lever 17 provided outside the top surface side of the main body 1, and the rotation of the lever 17 causes the main body 1 to rotate.
Are rotated and slid along the inner surface of the inner peripheral wall 2. A pipe-shaped fluid supply port 9 is provided at the center position of the valve body 8 along the axial direction. The supply port 9 has a fluid flow path 10 extending toward the inner peripheral wall 2. , Each said space 1
Radially formed at intervals corresponding to the formation ranges of 4, 15, and 16.

Next, the actual use of the above-described valve will be described with reference to FIGS.

[0014]

[Table 1]

Table 1 shows the correspondence between the rotation stop position of the valve element 8 and the supply and stop of the fluid to the supply destinations A, B, and C in an embodiment of the valve as shown in FIG. is there. First, FIG. 3 shows the valve body 8 rotated to the position a in Table 1. In this way, all the flow paths 10, 10, 10 of the valve body 8 coincide with the positions where the holes 4 are provided, and it is possible to supply the fluid to all the supply destinations A, B, C. Become. Next, in FIG. 4, the valve element 8 is rotated to the position h in Table 1, and the supply of the fluid is stopped at all the supply destinations A, B, and C. In FIG. 5, the valve 8 is rotated to the position f in Table 1, the fluid is supplied to two supply destinations A and B, and the supply to C is stopped.

From this, it is possible to control the supply and stop of the fluid in any combination of the supply destinations A, B and C by the rotation stop position of the valve body 8. That is, supply of fluid in one or two directions selected from A or B and C, supply of fluid in all directions of A, B and C, and supply of fluid in all directions of A, B and C It is also possible to stop the supply completely.

Here, the valve of the present invention is not limited to the three-way valve as described above, and the supply and stop of the fluid can be controlled by increasing or decreasing the number of holes 4 and the number of channels and the number of sections of the space. Can be freely increased. For example, the present invention can be applied to the manufacture of a four-way valve or more directional valves, or can be applied to a directional valve of three-way valves or less. Further, the rotation operation of the valve body 8 may be other than the manual operation using the lever as described above, and is not particularly limited. The rotation range of the valve body may be such that it rotates over the entire circumference of the main body 1.
The rotation range within the formation range of 5, 16 may be used.

Further, as shown in FIG. 6, the supply destinations A, B, and C of the fluid can be displayed on the top surface side of the main body 1. With this configuration, the position where the lever is rotated is adjusted to the position where the target supply destinations A, B, and C are displayed, whereby the fluid can be reliably supplied to the supply destinations A, B, and C. Therefore, the use of the valve is more preferable.

[0019]

According to the first aspect of the present invention, even if the number of supply destinations of the fluid increases, the supply and stop of the fluid to all the supply destinations can be controlled by one valve. Further, since it is also possible to select an arbitrary plurality of supply destinations and supply the fluid or completely stop the fluid supply, the structure of the structure is greatly simplified, and the manufacturing cost is reduced. In addition to being extremely inexpensive, erroneous operations and troublesome maintenance during control are eliminated.

Further, in addition to the effect of the first aspect, the invention according to the second aspect has the advantage that even if a fluid flows backward toward the extraction hole, the extraction hole is closed, so that the inside of the main body can be prevented. Fluid inflow is prevented.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a typical embodiment of a valve of the present invention.

FIG. 2 is a plan view showing an embodiment of the valve of the present invention.

FIG. 3 is an explanatory view showing the use of the valve of the present invention.

FIG. 4 is an explanatory view showing the use of a valve.

FIG. 5 is an explanatory view showing the use of a valve.

FIG. 6 is a plan view showing an example of the embodiment of the valve of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Inner peripheral wall 3 Outer peripheral wall 4 Drain hole 8 Valve 9 Supply port 10 Flow path 11 Opening / closing means (check valve) 14, 15, 16 Space A, B, C space

Claims (2)

[Claims] 1. A double tubular main body (1) having a hollow portion between an inner peripheral wall (2) and an outer peripheral wall (3), and a valve rotatably sliding along the inner surface of the inner peripheral wall (2). A fluid supply port (9) formed at the center of the valve body (8), and extending from the supply port (9) toward the inner peripheral wall (2). A flow path (10) is provided radially, the hollow portion is circumferentially partitioned into a number corresponding to the flow path (10), and an inner peripheral wall (2) is formed within a range of formation of each space (14, 15, 16). A plurality of holes (4) are provided at intervals in the circumferential direction, and the respective flow paths (10) and the respective holes (4) at the rotation stop position of the valve body (8) coincide with or mismatch with each other. The combination controls the supply of fluid to any destination (A, B, C) and the supply and stop of fluid to all destinations (A, B, C). A valve characterized in that: 2. A valve according to claim 1, wherein said opening (4) is provided with an opening / closing means (11).