JP3971508B2 - Bidirectional branch controller - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a two-way branch controller, the purpose of which is compact and requires less installation space than conventional piping structures, can eliminate the accumulation of fluid in the piping, and can flow to the valve box. An object of the present invention is to provide a two-way branch controller that is easy to form a path and excellent in workability.
[0002]
[Prior art]
Conventionally, in order to mix fluid flowing in from two directions or distribute fluid flowing in from one direction in two directions, a T-shaped tube (T) or a vent tube (B) as shown in FIG. A piping structure connected in a letter shape is often adopted.
Further, when the horizontal pipe is branched in the vertical direction, a branch pipe structure using a T-shaped pipe (T) is used as shown in FIG.
However, in these conventional piping structures, when the fluid control valve is closed, the inside of the T-shaped tube (T) and the vent tube (B) and the inlet flow path of the control valve (V) in the piping structure shown in FIG. In the pipe structure shown in FIG. 9, a large amount of fluid accumulates in the pipe from the branch path of the T-shaped pipe (T) to the inlet flow path of the control valve (A), which is preferable for reasons of hygiene. There wasn't.
Moreover, in these piping structures, a plurality of pipe lines such as T-shaped pipes (T) and vent pipes (B) must be connected using packing (P) and clamps (C). In addition, since a large space is required for the piping, it may not be used in a place where the piping is crowded.
[0003]
In view of the above situation, the present inventors have proposed a bi-directional branch controller as shown in FIG. 10 in Japanese Patent Application No. 9-121729. This bi-directional branch controller uses a substantially triangular prism-shaped valve box (D) shown in FIG. 11 as a front view, as shown in FIG. 12 as a sectional view along line AA, and as shown in FIG. Then, two valve bodies (F) are arranged on the valve seat (E) formed on the adjacent inclined surface of the valve box (D).
This bi-directional branch controller is very compact compared to the conventional piping structure, so the space required for piping can be reduced, and the length of the branch path is very short, so the amount of fluid accumulated in the piping Therefore, the above-mentioned conventional piping structure can solve almost all of the problems.
[0004]
[Problems to be solved by the invention]
However, the two-way branch controller proposed in Japanese Patent Application No. 9-121729 also has the following problems.
That is, since the opening of the valve seat (E) and the opening (G) serving as the inlet or outlet are in a three-dimensional positional relationship, the flow that causes these openings to communicate with the valve box (D). It is difficult to form a path, the workability is very poor, and the flow path from the inlet to the valve box (D) through the valve body (F) to the outlet is bent three-dimensionally, so Distribution was not so good.
[0005]
[Means for Solving the Problems]
The present invention has been made to solve the above-described problems of the prior art, and the invention according to claim 1 is generally triangular when viewed from the front, and has a first opening at the top and a first opening at the bottom. A bi-directional branch controller comprising a valve box having two and third openings, and two valve bodies respectively disposed on left and right inclined side surfaces of the valve box, The passage from the first opening is branched in the left-right direction inside the valve box and is opened as a valve body inlet on the inclined side surface, and a valve body outlet is formed adjacent to the valve body inlet, A flow path communicating with the second and third openings is formed in parallel with the axis of the first opening from the valve body outlet, and the first opening is formed by raising the diaphragm of the valve body. the second and has the third is an opening communicable with said valve body It relates to a two-way branch controller, wherein a passage extending from the first opening to the valve body inlet portion which is branched in the lateral direction is being both the downward ramp in parts.
[0006]
The invention according to claim 2 is substantially hexagonal when viewed from the front, and when the top surface is the first surface, and the surfaces sequentially adjacent from the first surface in the clockwise direction are the second surface to the sixth surface, A valve box having a first opening on a surface and second and third openings on a third surface and a fifth surface, and a second surface and a sixth surface of the valve box, respectively. A two-way branch controller comprising two valve bodies, wherein the passage from the first opening is branched in the left-right direction inside the valve box, and the second and sixth surfaces of the valve box The valve body outlet part is formed adjacent to the valve body inlet part, and a flow path communicating with the second and third openings is formed from the valve body outlet part. is made, the contact said first opening is configured to be communicated with the second and third openings by an increase operation of the diaphragm of the valve body Relates to a two-way branch controller, wherein a passage leading to said valve body inlet portion from a first opening which is branched in the lateral direction within the valve body is composed are both set to the downward ramp.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a two-way branch controller according to the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a first embodiment of a two-way branch controller according to the present invention, FIG. 2 is a top view thereof, and FIG. 3 is a sectional view thereof.
In the two-way branch controller according to the first embodiment, two valve bodies (2) are arranged in one valve box (1), so that the fluid flowing in from one direction is branched in two directions, or two It is possible to mix fluid flowing in from the direction.
[0009]
As shown in FIG. 1, the valve box (1) has a substantially triangular shape when viewed from the front, and has a first opening (3) at the top and a second opening (4) and a third opening ( 5).
The passage from the first opening (3) is bifurcated in the left and right directions in the valve box (1) and opens as the valve body inlet (6) on the left and right inclined side surfaces of the valve box (1). A valve body outlet (7) is formed on the side surface adjacent to the valve body inlet (6).
And a flow path is formed in parallel with the axis of the 1st opening part (3) from the valve body outlet part (7), and these flow paths are respectively with the 2nd opening part (4) and the 3rd opening part (5). Communicate.
A valve body (2) provided with a diaphragm (8) is attached to the upper surfaces of the valve body inlet (6) and the valve body outlet (7), and the diaphragm (8) is operated by operating the valve body (2). The first opening (3) can be communicated with the second opening (4) and the third opening (5) by raising.
[0010]
The branch passages from the first opening (3) branched in the left-right direction inside the valve box (1) are both inclined downward as shown in FIG. 3, and the first opening is formed by this downward inclination. The fluid flowing in from (3) can reach the valve body inlet (6) without accumulating inside the valve box (1) .
[0011]
The bi-directional branch controller having the above configuration is very compact compared to the conventional piping structure as shown in FIG. 8, for example, so that the space required for piping can be made very small, and the length of the branch path is also reduced. Is very short, the amount of fluid accumulated in the pipe can be made extremely small.
In addition, since the first to third openings and the valve main body are in a planar positional relationship, it is easy to form a flow path to the valve box and is excellent in workability, and the valve main body is removed from the first opening. Since there is no three-dimensional bending in the flow path leading to the second to third openings, the fluidity is excellent and the accumulation of fluid is difficult to occur inside the valve box.
[0012]
4 is a front view showing a second embodiment of the two-way branch controller according to the present invention, FIG. 5 is a top view thereof, FIG. 6 is a bottom view thereof, and FIG. 7 is a sectional view thereof.
Similarly to the first embodiment, the two-way branch controller according to the second embodiment flows in from one direction by arranging two valve bodies (2) in one valve box (1). It is possible to branch the fluid in two directions or to mix fluid flowing in from two directions.
[0013]
In the two-way branch controller according to the second embodiment, the valve box (1) has a substantially hexagonal shape when viewed from the front as shown in FIG. 4, and its top surface is the first surface, and clockwise from the first surface. The first surface (11) has the first opening (3) and the third surface (13) has the second opening (4). And it has the 3rd opening part (5) in the 5th surface (15).
[0014]
The passage from the first opening (3) is branched in the left and right directions in the valve box (1), and the valve body inlet part (12) is formed on the second surface (12) and the sixth surface (16) of the valve box (1). 6), and the valve body outlet (7) is formed on the second surface (12) and the sixth surface (16) adjacent to the valve body inlet (6).
And a flow path is formed in the shape of a dogleg from the valve body outlet part (7), and these flow paths are connected with the 2nd opening part (4) and the 3rd opening part (5), respectively.
A valve body (2) provided with a diaphragm (8) is attached to the upper surfaces of the valve body inlet (6) and the valve body outlet (7), and the diaphragm (8) is operated by operating the valve body (2). The first opening (3) can be communicated with the second opening (4) and the third opening (5) by raising.
[0015]
The passage from the first opening (3) branched in the left-right direction inside the valve box (1) is a downward slope as shown in FIG. 7, and the first opening ( The fluid flowing in from 3) reaches the valve body inlet (6) without accumulating inside the valve box (1). However, in this second embodiment, it is not always necessary to provide an inclination.
[0016]
The bi-directional branch controller according to the second embodiment is also very compact compared to the conventional piping structure, so the space required for piping can be made very small, and the length of the branch path is very short. It is possible to make the amount of fluid accumulated in the inside very small.
In addition, since the first to third openings and the valve main body are in a planar positional relationship, it is easy to form a flow path and is excellent in workability, and the second to the second main body passes through the valve main body from the first opening. Since there is no three-dimensional bending in the flow path leading to the third opening, the fluidity is excellent, and the accumulation of fluid is difficult to occur inside the valve box.
[0017]
In the illustrated example, the operation mechanism for expanding and contracting the diaphragm is a pneumatic mechanism using a compressor. However, in the present invention, the form of the operation mechanism is not limited at all, and any known operation mechanism can be suitably used. The manual operation mechanism may be used.
[0018]
【The invention's effect】
As described above, the invention according to claim 1 is a valve box having a substantially triangular shape when viewed from the front and having a first opening at the top and second and third openings at the bottom. A two-way branch controller comprising two valve bodies respectively disposed on left and right inclined side surfaces of a valve box, wherein the passage from the first opening branches in the left-right direction inside the valve box And is opened as a valve body inlet on the inclined side surface, and a valve body outlet is formed adjacent to the valve body inlet, and the valve body outlet is parallel to the axis of the first opening. A flow path communicating with the second and third openings is formed, and the first opening can be communicated with the second and third openings by raising the diaphragm of the valve body , The valve body inlet from the first opening branched in the left-right direction inside the valve box Since a two-way branch controller, characterized in that the lead passage is being both a downward ramp, an effect described below. In other words, the installation space is small because it is very compact compared with the conventional piping structure, and the length of the branch path is very short, and there is no three-dimensional bending in the flow path. Furthermore, since the opening and the valve body are in a planar positional relationship, the flow path can be easily formed and the workability is excellent.
Further, since both the passages from the first opening branched in the left-right direction inside the valve box are inclined downwards, the fluid flowing in from the first opening does not accumulate inside the valve box. It reaches the inlet, and the flowability is very good, and the accumulation of fluid can be further reduced.
[0019]
The invention according to claim 2 is substantially hexagonal when viewed from the front, and when the top surface is the first surface, and the surfaces sequentially adjacent from the first surface in the clockwise direction are the second surface to the sixth surface, A valve box having a first opening on a surface and second and third openings on a third surface and a fifth surface, and a second surface and a sixth surface of the valve box, respectively. A two-way branch controller comprising two valve bodies, wherein the passage from the first opening is branched in the left-right direction inside the valve box, and the second and sixth surfaces of the valve box The valve body outlet part is formed adjacent to the valve body inlet part, and a flow path communicating with the second and third openings is formed from the valve body outlet part. is made, the contact said first opening is configured to be communicated with the second and third openings by an increase operation of the diaphragm of the valve body Since passage extending into said valve body inlet portion from a first opening which is branched in the lateral direction inside the valve body are both two-way branch control unit, characterized in that formed by the downward ramp, There are the following effects. In other words, the installation space is small because it is very compact compared with the conventional piping structure, and the length of the branch path is very short, and there is no three-dimensional bending in the flow path. Furthermore, since the opening and the valve body are in a planar positional relationship, the flow path can be easily formed and the workability is excellent.
Further, since both the passages from the first opening branched in the left-right direction inside the valve box are inclined downwards, the fluid flowing in from the first opening does not accumulate inside the valve box. It reaches the inlet, and the flowability is very good, and the accumulation of fluid can be further reduced.
[Brief description of the drawings]
FIG. 1 is a front view showing a first embodiment of a two-way branch controller according to the present invention.
FIG. 2 is a top view showing a first embodiment of a two-way branch controller according to the present invention.
FIG. 3 is a cross-sectional view showing a first embodiment of a two-way branch controller according to the present invention.
FIG. 4 is a front view showing a second embodiment of the two-way branch controller according to the present invention.
FIG. 5 is a top view showing a second embodiment of the two-way branch controller according to the present invention.
FIG. 6 is a bottom view showing a second embodiment of the two-way branch controller according to the present invention.
FIG. 7 is a cross-sectional view showing a second embodiment of the bi-directional branch controller according to the present invention.
FIG. 8 is a diagram showing an example of a conventional piping structure.
FIG. 9 is a diagram showing an example of a conventional piping structure.
FIG. 10 is a front view of the bi-directional branch controller previously proposed by the present inventors.
FIG. 11 is a front view of the valve box of the bi-directional branch controller previously proposed by the inventors of the present application.
12 is a cross-sectional view taken along line AA in FIG.
13 is a sectional view taken along line BB in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Valve box 2 Valve body 3 1st opening part 4 2nd opening part 5 3rd opening part 6 Valve body inlet part 7 Valve body outlet part 8 Diaphragm 11 First surface (top surface)
12 2nd surface 13 3rd surface 15 5th surface 16 6th surface

Claims (2)

A valve box having a substantially triangular shape when viewed from the front and having a first opening at the top and second and third openings at the bottom, and a left and right inclined side surfaces of the valve box, respectively. A two-way branch controller composed of two valve bodies, wherein the passage from the first opening is branched in the left-right direction inside the valve box and opens as the valve body inlet on the inclined side surface. In addition, a valve body outlet portion is formed adjacent to these valve body inlet portions, and a flow path communicating from the valve body outlet portion to the second and third openings in parallel with the axis of the first opening portion. The first opening is formed so that it can communicate with the second and third openings by raising the diaphragm of the valve body, and the first opening is branched in the left-right direction inside the valve box. Both of the passages from the first part to the valve body inlet part are inclined downwards. Bidirectional branching controller characterized by comprising. When the front surface is a substantially hexagonal shape and the top surface is the first surface and the surfaces sequentially adjacent to the first surface in the clockwise direction are the second to sixth surfaces, the first surface has a first opening. And a valve box having second and third openings on the third and fifth surfaces, and two valve bodies respectively disposed on the second and sixth surfaces of the valve box. In the two-way branch controller, the passage from the first opening is branched in the left-right direction inside the valve box and opens as a valve body inlet on the second and sixth surfaces of the valve box. In addition, a valve body outlet portion is formed adjacent to the valve body inlet portion, and a flow path communicating with the second and third openings is formed from the valve body outlet portion, and the first opening is formed. parts are allowed to communicate with each other and said second and third openings by an increase operation of the diaphragm of the valve body, the right and left inside the valve body Bidirectional branching controller, wherein a passage leading to said valve body inlet portion is being both a downward ramp from a first opening which is branched in direction.

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