JPH07332535A - Device for operating valve opened and closed - Google Patents

Abstract

PURPOSE:To prevent simultaneously opening of the first/second valves for opening/closing the first/second pipe lines respectively transporting a fluid of different nature. CONSTITUTION:The first restricting member 4 is connected to a valve rod 3 of the first valve V1 interposed in the first pipe line 2, and the second restricting member 7 is connected to a valve rod 6 of the second valve V2 interposed in the second pipe line 5, to form protruded parts 22, 24 and recessed parts 23, 25 in each restricting member 4, 7. In a condition that in any of the one recessed part 23 or 25 of each restricting member 4, 7, any of the other protruded member 22 or 24 of each restricting member 4, 7 is fitted, angularly displacing any of the one restricting member 4 or 7 is permitted to impede angularly displacing any of the other restricting member 4, 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for opening and closing a valve formed in a pipeline for individually transporting fluids having different properties such as steam and air at room temperature.

[0002]

2. Description of the Related Art For example, an apparatus for cleaning foodstuffs such as vegetables is provided with a cleaning tank, and each cleaning tank stores an aqueous solution and cold water in which a chemical agent is mixed according to the type of foodstuff and a cleaning step, and is porous. There is a well-known food cleaning device in which the food material contained in the container is immersed and the aqueous solution and cold water are agitated by the bubbles discharged from the bottom of the cleaning tank to improve the cleaning effect.

At the bottom of the cleaning tank, individual conduits for guiding air to discharge the air bubbles are respectively connected, and each individual conduit is connected to a single common conduit so as to be upstream of the air supply direction. It is configured such that the clean air from the air pressure source provided in the above can be vigorously discharged from the bottom portion to each cleaning tank to agitate the liquid in each cleaning tank to clean the food immersed in the steam. .

[0004]

In such a prior art, since individual pipe lines for discharging air are connected to the bottom of the cleaning tank, respectively, when liquid is stored in each cleaning tank, Liquid penetrates into each individual pipeline up to the liquid level,
Floating matter generated by cleaning in each cleaning tank may adhere,
Bacteria may be generated by stopping the operation of the cleaning device. In such a case, each individual pipeline has to be regularly removed and cleaned, which causes a problem of poor maintainability.

In order to solve such a problem, in another prior art, steam from a steam generating source realized by a hot water boiler or the like is guided to the common pipeline via a pipeline provided for transporting steam, Water vapor is introduced into each individual conduit via this common conduit to remove suspended matter, and sterilize and disinfect. In such a prior art, since the supply pressure of water vapor and the supply pressure of air are different from each other, a flow path opening / closing valve realized by a ball valve or the like is provided in each pipeline, and when supplying water vapor. The valve provided in the pipeline for transporting air is closed, and the valve provided in the pipeline for transporting water vapor is closed when air is supplied.

In such a prior art, the valves may be opened at the same time due to an erroneous operation by the operator. Especially, when the pressure of water vapor is higher than the pressure of air, the valves are connected to a pipeline for transporting air. The generated air pressure source is damaged by the heat of steam. In addition, air cannot be vigorously discharged into the cleaning tank through each individual pipeline,
There is a problem that the cleaning effect is reduced.

Therefore, an object of the present invention is to provide a valve opening / closing operation device capable of reliably preventing erroneous operation of a plurality of valves.

[0008]

According to the present invention, a plurality of pipelines for transporting fluids having different properties are angularly displaced about an axis perpendicular to the pipeline axis of each pipeline to form a flow path for each pipeline. A valve body for opening / closing is individually provided, and a restricting member having a convex portion and a concave portion in a plane perpendicular to the axis is connected to each of the conduits, and any two adjacent adjoining members are connected. One of the concave portions of the two regulating members is formed to be retracted from the passage of the other convex portion in the angular displacement direction, and the other concave portion is formed more than the passage of the one convex portion in the angular displacement direction. The valve opening / closing device is characterized in that it is formed so as to be retracted, and each of the one and the other convex portions is formed so as to project into a passage path in a mutual angular displacement direction.

Further, according to the present invention, in any one of two arbitrary regulating members adjacent to each other, the convex portion and the concave portion of the other one of the two regulating members are partially fitted and guided. A guide surface is formed.

Further, the present invention is characterized in that at least one of the plurality of restricting members is connected to an operating member which is angularly displaceable at a predetermined mounting position by link means.

[0011]

According to the present invention, a valve element is interposed in each of a plurality of conduits for individually transporting fluids having different properties, such as air, steam, hot water, cold water, etc., and each valve element is perpendicular to the tube axis. The flow path can be opened / closed by angular displacement around the axis. A regulating member is connected to each valve body. A concave portion and a convex portion are formed on each regulating member in a plane perpendicular to the axis. Any two adjacent to each other
In the two regulating members, the concave portion of one regulating member is formed to be retracted from the passage of the convex portion of the other regulating member in the angular displacement direction. The concave portion of the other regulating member is formed to be retracted from the passage of the convex portion of the one regulating member in the angular displacement direction. Further, the convex portions of the one and the other regulating portions are formed so as to project into each other in the passage path in the angular displacement direction. By forming the convex portion and the concave portion on the regulating member in this manner, the angular displacement operation of the other regulating member is performed only when the concave portion of one regulating member is fitted with the other convex portion. be able to. Further, the angular displacement operation of the one regulating member can be performed only when the one convex portion is fitted in the concave portion of the other regulating member.

In this way, since only the regulating member having the convex portion fitted in the concave portion can be angularly displaced, it is possible to prevent a plurality of valve bodies from being opened at the same time. As a result, it is possible to prevent the fluids having different properties from being simultaneously supplied from the plurality of pipes.

According to the invention, the guide surface is formed on either one of the two arbitrary regulating members adjacent to each other. By this guide surface, it is possible to prevent the convex portion and the concave portion of the other of the two regulating members from being separated from the concave portion and the convex portion of the one. As a result, even if each regulating member is made thin, it is possible to prevent the erroneous operation of the regulating member by keeping the concave portions and the convex portions of each regulating member facing each other.

Further, according to the present invention, since the operation member is connected to at least one of the plurality of regulating members via the link means, the at least one regulating member can be remotely operated, which is convenient. Is improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an opening / closing device 1 according to an embodiment of the present invention.
FIG. The opening / closing operation device 1 of the present embodiment is such that the first restricting member 4 connected to the valve rod 3 of the first valve V1 interposed in the first conduit 2 that transports air, which is a fluid having different properties.
And a second restricting member 7 connected to the valve rod 6 of the second valve V2 interposed in the second conduit 5 that transports water vapor, which is a fluid having different properties. The first and second valves V1 and V2 are ball valves provided with valve bodies 8 and 9, respectively, and can open / shut off the respective flow paths of the first and second pipelines 2 and 5. The first and second pipe lines 2 and 5 are connected by a connecting portion 10 realized by, for example, a T-shaped pipe, and the air or water vapor flowing in each pipe line 2 and 5 opens and closes the valve bodies 8 and 9. Accordingly, the fluid can be guided to the common pipe line 11 and supplied to the subsequent fluid using equipment.

The valve rods 3 and 6 are connected to the pipe shaft 4 of the pipe lines 2 and 5, respectively.
1, 42 has an axis perpendicular to each other, and the first and second restricting members 4 and 7 are arranged around the respective axes by arrows A1 / A2 and arrows B.
The angular displacement can be operated in the 1 / B2 direction. By such an angular displacement operation of the first and second regulating members 4 and 7, the valve bodies 8 and 9 are angularly displaced in the same direction in accordance with the angular displacement amounts of the respective regulating members 4 and 7, Second conduit 2,
The opening area of each of the flow channels 5 can be changed. The first and second regulating members 4 and 7 are made of stainless steel SUS304.
Consists of. The first and second pipelines 2 and 5 are made of steel pipe. Further, the first restricting member 4 has a substantially C-shaped rotating portion 12 and an operating lever 13 that is integrally formed so as to be continuous with the central portion in the longitudinal direction of the rotating portion 12. The second restricting member 7 has a substantially C-shaped rotating portion 14 and an operating lever 15 that is integrally formed so as to be continuous with the central portion of the rotating portion 14 in the longitudinal direction. The operation levers 13 and 15 are nuts 1
The valve rods 3 and 6 are fixed by 6 and 17. A locking projection 18 is integrally formed on the operating lever 13 of the first restricting member 4, and the locking projection 18 contacts a stopper 19 formed on the first valve V1 to cause an angular displacement in the A1 direction. Is blocked. In the state shown in FIG. 1, the first restricting member 4 has the operation lever 13 parallel to the pipe axis of the first pipe line 2, and the valve body 8 of the first valve V1 is open. The operation lever 15 of the second regulating member 7 is perpendicular to the pipe axis of the second pipe line 5, and in this state, the valve body 9 of the second valve V2 is shut off. In this way, in the state where the operation lever 15 of the first restricting member 7 intersects the pipe axis of the second conduit 5 perpendicularly, only the first restricting member 4 is angularly displaced in the A1 / A2 direction to operate the first valve. V1 can be opened / closed. Therefore, the water vapor supplied to the second pipeline 5 is blocked by the second valve V2 and the first valve V1 is opened, and only the air supplied to the first pipeline is guided to the common pipeline 11. You can In order to switch the fluid to be supplied to the common conduit 11 from air to steam in the state shown by the solid line in FIG. 1, first, the first restricting member 4 is angularly displaced by 90 ° in the arrow A1 direction. Then, the second restricting member 7 is angularly displaced in the B1 direction. In this state, the concave portion 22 of the first regulating member 4 faces the movement path of the convex portion 24 of the second regulating member 7 in the angular displacement direction B1, and the second regulating member 7 is angularly displaced in the B1 direction. You can In this way, the first regulating member 4 and the second regulating member 7
1 is switched from the state shown by the solid line in FIG. 1 to the state shown by phantom lines 4a, 7a, even if the first restricting member 4 is angularly displaced in the direction A2 opposite to the angular displacement direction A1. The convex portion 22 of the first regulating member 4 abuts the convex portion 24 of the second regulating member 7, the angular displacement of the first operating member 4 in the arrow A2 direction is blocked, and the water vapor is transferred to the second pipeline 5. It is possible to prevent the air from being supplied from the first pipe line 2 to the common pipe line 11 side while the first valve V1 is opened during the supply of air from the common pipe line 11 to the common pipe line 11.

FIG. 2 is a system diagram of a foodstuff washing device 21 having the opening / closing device 1 shown in FIG. The foodstuff cleaning device 21 basically includes a fluid supply means 26 having the opening / closing device 1 and a cleaning means 27 to which a fluid, that is, air or steam is selectively supplied from the fluid supply means 26 through the conduit 11. Including. The cleaning means 27 is connected to a plurality of cleaning tanks 28, a bucket 30 accommodating foodstuffs 29 such as vegetables, which is realized by a metal net made of stainless steel, and a bottom portion 31 of the cleaning tank 28 so that the cleaning tank 28 has an internal structure. A plurality of cleaning units U1, U2, ...
_(i-1) and U _i (i = 6 in this embodiment).

The fluid supply means 26 includes an air pressure source 33 for supplying air to the first conduit 2, a steam generation source 34 for supplying steam to the second conduit 5, and first and second valves V1, V2.
And first and second regulating members 4 and 7 for regulating the angular displacement operation of the first and second valves V1 and V2. The air pressure source 33 is realized by, for example, an air compression device, and the steam generation source 34 is realized by, for example, a hot water boiler.

The fluid supply conduit 32 of each of the cleaning units U1 to U _i is connected to the common conduit 11 and
Open / close valves v1, v for individually opening / closing each fluid supply conduit 32
_{2, ..., v (i-} 1), v i ( in this embodiment, i = 6)
From the fluid supply means 26 to the pipelines 11, 32
The introduced air or water vapor can be supplied to each cleaning tank 28 individually. A cleaning liquid is stored in each cleaning tank 28. This cleaning liquid is, for example, foodstuff 2.
9 is an aqueous solution in the cleaning tank U1 detergent are mixed is first accommodated, fresh water has been stored for cleaning the aqueous solution deposited in the cleaning tank U1 on subsequent cleaning tank U2～U _i, The fresh water is set to have a lower water temperature toward the downstream side, which prevents the freshness of the food material 29 from decreasing.

In this way, when used, fluid is stored in each fluid supply conduit 32 up to the level of the liquid level in each cleaning tank 28, and suspended matter generated by cleaning adheres, If left for a long period of time, bacteria may occur. Therefore, as described with reference to FIG. 1, the supply fluid to the cleaning means 27 is switched from air to steam, and the suspended matter is removed and sterilized and disinfected by the pressure and heat of the steam. FIG. 3 is a perspective view showing a part of the cleaning means 27 provided with the opening / closing device 1. In the switching work, first, the regulating member 4 is moved to the arrow A.
By angularly displacing 90 ° in one direction and completely closing the first valve V1, the second restricting member 7 can be angularly displaced in the arrow B1 direction in order to open the second valve V2 for the first time. . In this way, the supply fluid to the common line 11 is switched from air to steam. In this case, the cleaning liquid in each cleaning tank 28 may be stored or discharged, and may be gradually discharged from the stored state.

FIG. 4 is a sectional view taken along section line IV-IV in FIG. The first valve V1 has a valve box 37 in which the valve body 8 is housed, and a mounting seat 38 which is formed integrally with the valve box 37 so as to project in a direction perpendicular to the axis thereof. A part of the valve rod 3 is projected, and the stopper 19 is formed to project laterally. The operating lever 13 of the first regulating member 4 is attached to the protruding portion of the valve rod 3 by the nut 16 as described above. The second valve V2 has a valve box 39 in which the valve body 9 is housed, and a mounting seat 40 that is integrally formed with the valve box 39 so as to project in the direction perpendicular to the axis.
A part of the valve rod 6 projects from the central portion of the mounting seat 40. As described above, the nut 1 is attached to the protruding portion of the valve rod 6.
The operation lever 15 of the second restriction member 7 is attached by 7. In this way, when the first and second restricting members 4 and 7 are attached to the valve rods 3 and 6, respectively, the restricting members 4 and 7 are connected to the pipe shaft 41 of the first and second conduits 2 and 5, respectively. , 4
It is arranged on one plane parallel to the plane including 2. The rotating portion 12 of the first restricting member 4 is sandwiched by the pair of substantially C-shaped guide plates 43a and 43b from both sides in the thickness direction. A guide groove 45 into which the peripheral edge portion 44 of the rotating portion 14 of the second restricting member 7 is fitted is formed inside the guide plates 43a and 43b and radially outward of the rotating portion 12. In this way, the rotating portion 12 of the first restricting member 4 is connected to the pair of guide plates 4
Since the guide groove 45 is formed by being sandwiched by 3a and 43b, and the peripheral edge portion 44 is fitted and guided in the guide groove 45, even if the first and second regulating members 4 and 7 are thin, The second restricting members 4 and 7 are surely arranged on the one plane and can be prevented from being separated from each other.

FIG. 5 is a sectional view taken along a plane including the tube axes 41 and 42 of FIG. First and second valve V
1, V2 are in the state shown by the solid line in FIG. In this state, the first channel 46 in the first channel 2 and the common channel 11
The first merging passage 48 that joins the common passage 47 inside is coaxial, and the axis of the first merging passage 48 and the axis of the valve hole 49 formed in the valve body 8 of the first valve V1 coincide with each other. The first valve V1 is in a completely opened state. On the other hand, the second flow passage 50 in the second conduit 5 and the second merge flow passage 51 that joins the common flow passage 47 are coaxial, but are formed in the valve body 9 of the second valve V2 with respect to this axis. The axis of the valve hole 52 to be
The valve V2 is completely shut off. Like this first
By changing the direction of the axes of the valve holes 49, 52 of the second valves V1, V2, the flow path can be opened / closed and the fluid to be supplied can be selected.

FIG. 6 is a front view showing the first regulating member 4. The first restricting member 4 includes the rotating portion 12 and the operating lever 1.
3 and a connecting portion 53 that connects the rotating portion 12 and the operating lever 13.

The rotating portion 12 is generally C-shaped.
Further, the convex portion 22 is convex outward in the radial direction and has a convex arc surface 55 having a radius R1 centered on a shaft hole 54 described later.
And a concave arc surface 56 that is convex inward in the radial direction and has a radius R2.
And a concave portion 23 having. The length of the convex arc surface 55 is L1 and the length of the concave arc surface 56 is L2.

The operating lever 13 is a long plate having an axial hole 54 through which the valve rod 3 is inserted at one end and a non-slip portion 57 at the other end. The shaft hole 54 is a long hole. Since the shaft hole 54 is a long hole, the orientation of the valve body 8 and the orientation of the operation lever 13 can be easily matched when the operation lever 13 is attached to the valve rod 3. The anti-slip part 57 has a width wider than the width of other parts of the operation lever 13. As a result, it is possible to prevent the hand from slipping off from the operation lever 13 during the operation. A cover body 58 made of, for example, vinyl chloride is covered on the other end side of the operation lever 13 including the anti-slip portion 57, and the cover body 58 has a cover body mounting hole 59.
For example, it is attached by fitting a pin. The cover body 58 can further improve the anti-slip effect. Further, the locking projection 18 is formed in the vicinity of the shaft hole 54 of the operation lever 13, so that the first valve V1 to which the first restricting member 4 is attached can be easily operated in a completely closed state.

The connecting portion 53 connects the rotating portion 12 and the operating lever 13, and is integrally formed with the rotating portion 12 and the operating lever 13 so that the rotating portion 12 and the operating lever 13 work together. . A mark attachment hole 60 is formed in the connecting portion 53, and a mark indicating, for example, an operation prohibition item can be attached to prevent erroneous operation.

FIG. 7 is a front view showing the second regulating member 7. The second restricting member 7 includes the rotating portion 14, the operating lever 15, and a connecting portion 61 that connects the rotating portion 14 and the operating lever 15.

The rotating portion 14 is generally C-shaped. Further, it is convex outward in the radial direction and has a shaft hole 62 described later.
Includes a convex portion 24 having a convex arc surface 63 with a radius R3 centered at, and a concave portion 25 having a concave arc surface 64 having a radius R4 and being convex inward in the radial direction. The convex arc surface 63
Is L3, and the length of the concave arc surface 64 is L4. R1 to R4 and L1 to L4 described with reference to FIGS. 6 and 7 are R1 + R3> L10, L10− (R when the distance between the first and second valves V1 and V2 is L10.
1 + R4) = 1 to 2 mm and L10− (R2 + R3)
= 1 to 2 mm, L1 to L4 are L10 and R1
It is a dimension that is inevitably determined by the dimensions of R4. In this embodiment, L1 = L3 and L2 = L4. Also, L1 and L3 are selected to be larger than L2 and L4.

The operation lever 15 has the valve rod 6 at one end.
Is formed with a shaft hole 62, and the other end has a non-slip portion 6
5 has a long plate shape. The shaft hole 62 is a long hole. Since the shaft hole 62 is a long hole, the operation lever 15
The direction of the valve body 9 can be easily matched. The anti-slip portion 65 has a width wider than the width of other portions of the operation lever 15. This can prevent the hand from slipping off the operation lever 15 during the operation. A cover body 66 is attached and attached to the other end side of the operation lever 15 including the anti-slip portion 65, similarly to the operation lever 13. This cover body 6
6 improves the anti-slip effect, and by changing the color of the cover body 58 of the first restricting member to, for example, green and red, erroneous operation can be prevented.

The connecting portion 61 connects the rotating portion 14 and the operating lever 15, and is integrally formed with the rotating portion 14 and the operating lever 15 so that the rotating portion 14 and the operating lever 15 interlock. To be done.

As shown in FIGS. 6 and 7, the convex arcuate surfaces 55 and 63 of the first and second restricting members 4 and 7 are used as the shaft holes 54 and 60 of the respective members, that is, the arcuate surfaces at the centers of angular displacement, and concave. By setting the arcuate surfaces 56 and 64 as arcuate surfaces at the angular displacement centers of the members facing each other, the center positions of the concave arcuate surfaces 56 and 64 of the members facing each other are
The restricting members 4, 7 can be angularly displaced only when they are on a straight line connecting the axes of the valve bodies 8, 9 to which the restricting members 4, 7 are attached. Therefore, in the state where the valve bodies 8 and 9 are closed, the centers of the concave arc surfaces 56 and 64 of the concave portions 23 and 25 of the restricting members 4 and 7 attached to the valves V1 and V2 are the respective valves. By mounting the restricting members 4 and 7 on the valve rods 3 and 6 so as to coincide with the straight line connecting the axes of the first and second valves V1 and V1, respectively.
It is possible to prevent the V2 from being opened.

FIG. 8 is a front view showing the guide plate 43a. The guide plate 43a is C-shaped. This guide plate 43a
Has an outer peripheral surface 68 of radius R5. This radius R5 is larger than the radius R1 of the convex arcuate surface 55, for example R5-.
R1 = 10 mm. The length of the outer peripheral surface 68 is formed to be greater than or equal to the sum of the length L1 of the convex arc surface 55 and the length L2 of the concave arc surface 56. The width L6 is the convex arc surface 5
It has a width wider than the sum of the radiuses R1 and R3 of 5,63 minus the axial distance L10 of the valve.

The guide plate 43b has the same structure, and its description will be omitted to avoid duplication.

Such guide plates 43a and 43b are formed by spot welding, for example, by the rotating portion 1 of the regulating member 4.
It is attached to both sides in the thickness direction of 2. As a result, the guide groove 45 having the guide surface 69 is formed in the first regulating member 4. Such guide plates 43a and 43b may be attached with an adhesive, for example. In addition, the guide plates 43a and 43b
Guide surface 6 formed integrally with the regulating member 4 without using
It may be a guide groove 45 having 9.

FIG. 9 is a front view showing an opening / closing operation device 71 according to another embodiment of the present invention. The opening / closing operation device 71 is interposed between a first pipeline 72 for transporting air and a second pipeline 73 for transporting water vapor, and a first valve V11 and a second pipeline 73 interposed in the first pipeline 72. Second valve V12 and first valve V1
The first restricting member 75 connected to the first valve rod 74, the operating member 77 connected to the valve rod 76 of the second valve V12, and the operating member 77 connected to the operating member 77 by the first and second link members 87 and 88. And a second regulating member 79. The first and second conduits 72, 73 are arranged substantially parallel to each other and apart from each other.

The first and second valves V11 and V12
Is a ball valve similar to the above-mentioned embodiment. The first regulating member 75 includes a rotating portion 80 and an operating lever 81, and is attached to the valve rod 74. The rotating portion 80 is formed with a convex portion 81 that is convex outward in the radial direction and a concave portion 82 that is convex inward in the radial direction. The second restricting member 79 is composed only of a portion corresponding to the rotating portion 80 of the first restricting member. The second restricting member 79 has a convex portion 83 that is convex in the radial direction and a concave portion 84 that is convex inward in the radial direction. The second restricting member 79 is adjacent to the first restricting member 75 and is angularly displaceable by a mounting pin 86 to a mounting body 85 fixed to the first conduit 72.

The operating member 77 is attached to the valve rod 76. One end of the first link member 88 in the longitudinal direction is attached to the operation member 77 via the valve rod 76. One longitudinal end of the second link member 78 is pin-coupled to the other longitudinal end of the first link member 87 by the first pin. Second
The other longitudinal end of the link member 88 is pin-connected to the second regulating member 79 by the second pin 90. In this way, by connecting the operating member 77 and the second regulating member 79 by the link means 91 composed of the valve rod 76, the first and second link members 87, 88 and the first and second pins 89, 90, the operation is performed. The member 77 and the second restriction member 79 can be interlocked. By using such regulating members 75 and 79, it is possible to obtain the same effect as that of the regulating members 4 and 7 of the above-described embodiment.

By using the link means 91 as described above, the second restricting member 79 can be remotely operated.

As another embodiment, the link means may be provided on the first regulating member side, and the first and second regulating members 7 may be provided.
It may be provided in both 5, 79.

In the above embodiment, each of the pipelines 2, 5, 7
The fluid transported by 2, 73 may be oxygen, LP gas, or the like. Further, the valve interposed in each of the conduits 2, 5, 72, 73 may be a butterfly valve, a cock or the like. Further, such an opening / closing device may be connected to a combustion device, a fluid ejection nozzle, or the like.

[0041]

According to the present invention, the opening / closing operation of each valve element can be restricted because the opening / closing operation of the valve element connected to each restriction member can be limited by the convex portion and the concave portion of each regulating member. It is possible to prevent the erroneous operation of and to prevent the valve bodies from being opened at the same time. That is, it is possible to selectively supply the fluid transported by the conduit in which each valve element is interposed.

Further, according to the present invention, since the guide surface for guiding the concave portion and the convex portion of the other regulating member is formed on any one of the regulating members adjacent to each other, each regulating member has a guide surface. Even if the thickness is thin, since the restricting members are arranged in the same plane, they can be prevented from coming off from each other.

Further, according to the present invention, since the operation member is connected to at least one of the plurality of regulating members by the link means, the regulating member can be operated from a distant position, and convenience can be improved. it can.

[Brief description of drawings]

FIG. 1 is a front view showing an opening / closing operation device 1 according to an embodiment of the present invention.

FIG. 2 is a foodstuff washing device 21 including the opening / closing operation device 1.
FIG.

FIG. 3 is a perspective view showing a part of a food material washing device 21 including an opening / closing operation device 1.

FIG. 4 is a sectional view taken along the section line IV-IV in FIG.

5 is a cross-sectional view taken along a plane including the tube axes 41 and 42 of FIG.

FIG. 6 is a front view showing a first restriction member 4.

7 is a front view showing a second restriction member 7. FIG.

FIG. 8 is a front view showing a guide plate 43a.

FIG. 9 is a front view showing an opening / closing operation device 71 according to another embodiment of the present invention.

[Explanation of symbols]

 1,71 Opening / closing operation device 2,72 First pipe line 4,75 First regulating member 5,73 Second pipe line 7,79 Second regulating member 8,9 Valve body 21 Foodstuff cleaning device 22,24,81,83 Convex portion 23, 25, 82, 84 Concave portion 27 Cleaning means 33 Air pressure source 34 Water vapor generation source 43a, 43b Guide plate V1, V2, V11, V12 valve

Claims (3)

[Claims] 1. A valve body for angularly displacing a plurality of pipes for transporting fluids having different properties about an axis perpendicular to the pipe axis of each pipe to open / shut off the flow passage of each pipe. And a regulating member having a convex portion and a concave portion in a plane perpendicular to the axis is connected to each of the conduits, and one concave portion of any two regulating members adjacent to each other. Is formed to retreat from the passage of the other convex portion in the angular displacement direction, and the other concave portion is formed to retreat from the passage of the one convex portion in the angular displacement direction. An opening / closing device for a valve, wherein each of the other convex portions is formed so as to project into a passage path in a mutual angular displacement direction. 2. A convex portion and a concave portion of the other of the two restricting members are partially fitted and guided in one of the arbitrary two restricting members adjacent to each other. The valve opening / closing device according to claim 1, wherein a guide surface is formed. 3. At least one of the plurality of regulating members
The valve opening / closing operation device according to claim 1 or 2, wherein an operation member provided so as to be freely angularly displaced is connected to a predetermined mounting position by a link means.