JPH0893931A - Fluid supply and discharge amount regulator - Google Patents

Abstract

PURPOSE: To prevent fluid such as gas and liquid from an accident of leak to the outside at first, enable a regulator to be connected to pipes, ducts, hoses or the like having various diameters for improving the general-purpose property secondly and provide a fluid supply and discharge amount regulator with low cost and excellent economy thirdly. CONSTITUTION: In this supply and discharge amount regulator, the entrance of a tube body 10 is joint connected to front and rear pipes, duct, hose or the like so that fluid flows in the tube body 10 while a blade part 11 is located to be pivoted between the opened attitude and the closed attitude to regulate the fluid supply and discharge amount. Since magnetically attaching means 18, 19 additionally provided respectively on a bar 16 of the blade part 11 in the tube body and the outside operating part 12 of the tube body 10 are always located in the corresponding positions by a magnetic force, so that the blade part 11 is driven pivotably to be located correspondingly by pivotally locating the operating part 12. Further, a tubelar coaxial different diameter stage parts 20 are provided on the in/outlet of the tube body 10 while the respective members are formed of integral moldings of anticorrosive resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid supply / discharge amount controller. That is, the present invention relates to a supply / discharge amount regulator such as a damper for adjusting the supply / discharge amount of gas, liquid, and other fluids.

[0002]

2. Description of the Related Art FIG. 2 shows a conventional fluid supply / discharge amount adjusting device of this type, and FIG.
(2) is a side sectional view of the same, and (3) is a side sectional view of another example. First, as a conventional example, the one shown in FIG. 2 (1) or (2) is typical.
A tubular body 1 forming a fluid flow path, and a shaft portion 2 inside the tubular body 1.
It has a size corresponding to the cross section of the tubular body 1 and is axially supported by the open posture along the axial direction A of the tubular body 1 ((2) in FIG. 2).
(Refer to the drawing) and a blade portion 3 which is rotatable between a closed posture at a right angle to the axial direction A of the cylindrical body 1 and a through hole 4 formed in the cylindrical body 1 so as to project to the outside of the cylindrical body 1. Attached to the end of the shaft 2,
The operation unit 5 is rotatable and positioned between the open instruction position (see (2) in FIG. 2) and the close instruction position. When the operating portion 5 is rotationally positioned outside, the inner blade portion 3 is driven by the shaft portion 2 and the through hole 4 to be rotationally positioned. Further, in the conventional feed / discharge amount adjuster shown in FIG. 2 (3), the inserting plate portion 6 is used in place of the rotating blade portion 3, and the inserting guide portion 8 fixed to the cylindrical body 7 is used. By inserting and removing the insertion plate portion 6 from the outside, the insertion plate portion 6 is linearly moved between the open posture and the closed posture inside. In addition, 9 in (1) of FIG. 2 is a guide groove of the operation portion 5 provided on the outside of the cylindrical body 1.

[0003]

By the way, the following problems have been pointed out in such a conventional example. First of all, as described above, the fluid supply and discharge regulator of the conventional example is fixed to the through hole 4 inside and outside the tubular body 1, the shaft portion 2 inserted into this, and the tubular body 7. For the insertion guide part 8,
The insertion plate portion 6 and the like that are taken in and out are essential. Therefore, it has been pointed out that the fluid inside the cylindrical bodies 1 and 7 is likely to leak to the outside from between the through hole 4 and the shaft portion 2 and between the insertion guide portion 8 and the insertion plate portion 6. That is, in the supply and discharge regulator of this type of conventional example, liquids such as organic / inorganic, acid / alkali, etc., gas, gas, mist, powder, and their crystals are externally supplied. A leaking defect is pointed out.For example, such a toxic gas is mixed into the air conditioner in the factory and scattered throughout the factory, or such a toxic gas corrodes various devices and products. A lot of things happened and it was a problem.

Secondly, the conventional supply / discharge amount adjusting device of this kind needs to be prepared for manufacture by adjusting the diameters of the cylinders 1 and 7 to the diameters of the front and rear pipes, ducts, hoses and the like. It was
Therefore, the pipes, ducts, hoses, etc. to be connected, installed and used are limited to one type by their diameters, and the pipes, ducts, hoses, etc. of multiple diameters are connected by a connection,
It could not be installed and used. Therefore, it was pointed out that it was inconvenient, difficult to use, and not versatile.

Thirdly, the conventional feed and discharge amount adjusting device of this type uses a corrosion-resistant copper plate or other metal plate, a corrosion-resistant resin plate or the like, which is processed into a predetermined shape or perforated. It was produced by applying. For this reason, it was pointed out that there was a high rate of reliance on manual work, and that there were difficulties in cost and economy.

In view of such circumstances, the present invention has been made as a result of earnest research efforts by the inventor in order to solve the problems of the above-mentioned conventional examples. Magnetic leakage is prevented from leaking to the outside by attaching magnetic attachment means to the inner blade and the outer operating part, respectively, and using the magnetic force between them to make the blade follow the operating part. Secondly, in addition to this, in the second aspect, the step of different diameter is provided at the inlet / outlet of the tubular body to improve the ease of use and versatility. Thirdly, in the third aspect, the corrosion resistant resin It is an object of the present invention to propose a fluid supply / discharge amount adjuster that is excellent in cost and economy because it is a processed molded product.

[0007]

The technical means of the present invention for achieving this object are as follows. First, claim 1
About: That is, this fluid supply / discharge amount adjuster includes a tubular body that forms a flow path for the fluid, a size that is axially supported inside the tubular body, and a size that corresponds to the cross section of the tubular body. A blade portion rotatable between an open posture along the axial direction of the body and a closed posture perpendicular to the axial direction of the tubular body, and an open instruction position and a closed instruction position which are axially attached to the outside of the tubular body. And an operation unit that can be rotationally positioned between the two. The vane portion and the operating portion are respectively provided with magnetic adhering means, and both magnetically adhering means are constantly positioned by the magnetic force through the tubular body, so that the vane portion follows the rotational positioning of the operating portion. Thus, the rotary positioning is performed. Next, claim 2 is as follows. That is, the fluid supply / discharge amount controller according to claim 1, wherein the inlet / outlet port of the tubular body is provided with a cylindrical different-diameter step portion, and the different-diameter step portion is provided. It is possible to cut and remove each part. Further, claim 3 is as follows. That is, this fluid supply / discharge amount adjuster is the same as the feed / discharge amount adjuster according to claim 1 or 2, wherein the cylindrical body, the different-diameter step portion, and the blade portion are each made of a corrosion-resistant resin. It consists of molded products.

[0008]

Since the present invention comprises such means, it operates as follows. In this fluid supply / discharge amount controller, the inlet and outlet of the cylinder are connected by connecting to the front and rear pipes, ducts, hoses, etc., so that the fluid flows in the cylinder and the blades are in open and closed positions. It is pivotally positioned between and to regulate the supply and discharge of fluid. The magnetizing means attached to the blade portion inside the cylinder and the magnetizing means respectively attached to the operating portion outside the cylinder are always positioned corresponding to each other via the cylinder due to the magnetic force. The part is driven and rotationally positioned to correspond.

In view of this, in this feed / discharge amount adjuster, first, as described above in claim 1, the blade portion and the operating portion are provided with the magnetic attachment means respectively, so that the blade portion is provided in the operating portion. It is designed to be driven. Therefore, since the cylindrical body is not provided with a through hole or the like, and the shaft portion is not rotated and the insertion plate portion is neither put in nor taken out, the fluid is prevented from leaking to the outside. Secondly, according to the second aspect, the cylindrical body is provided with a different diameter step portion. Therefore, depending on the diameter of pipes, ducts, hoses, etc. to be connected, it is possible to connect pipes, ducts, hoses, etc. of multiple diameters by cutting and removing different diameter step parts as needed. Become. Thirdly, in claim 3,
Since it is a processed product formed by blow molding of a corrosion-resistant resin, it can be easily and easily manufactured without manual work.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. FIG. 1 shows an embodiment of the present invention,
1A is a front external view, and FIG. 2B is a side sectional view.

This supply / discharge amount controller adjusts the supply / discharge amount of fluid, and is also called a damper. And
This supply / emission amount adjuster is used, for example, in a duct of an air-conditioning facility to valveally adjust the air flow, or in a chemical industrial plant for supplying or discharging an organic / inorganic gas. Or used to adjust the amount of air blown in and the amount of air discharged, and in a printed wiring board manufacturing plant, it is interposed between a device that generates an acid / alkali gas and a collecting pipe, It is used to discharge such gas to the outside. In this way, this supply / discharge amount regulator is used for liquids such as organic / inorganic, acid / alkali,
It is used for controlling the presence or absence of supply and discharge of gas, gas, mist, powder, viscous body, and other fluids, and for quantitatively adjusting the supply amount and discharge amount.

This supply / discharge amount adjuster first comprises a cylindrical body 10 forming a fluid flow path, and a size that is axially supported inside the cylindrical body 10 and corresponds to the cross section of the cylindrical body 10. ,
A blade portion 11 that is rotatable between an open position of the cylindrical body 10 along the axial direction A and a closed position of the cylindrical body 10 at a right angle to the axial direction A, and an open instruction position axially attached to the outside of the cylindrical body 10. And an operation portion 12 which can be rotationally positioned between the closing instruction position and the closing instruction position.

These will be described in more detail. First, the cylindrical body 10 has a rectangular pipe shape in the illustrated example, but a cylindrical pipe shape and various other cylindrical pipe shapes can be used. Then, a flow path for the fluid to be supplied and discharged is formed inside the cylindrical body 10. Next, the blade portion 11 for opening / closing adjustment
Is in the form of a rectangular or circular flat plate having a size corresponding to the cross section of the tubular body 10.
Is axially supported at right angles to the axial direction of. As such a pivotal support system, in the illustrated example, the shaft 13 fixed along the center line of the blade portion 11 and the shaft 13 are provided in the cylindrical body 10 so as to oppose each other in a lateral direction so as to loosely insert and hold both ends of the shaft 13. A method using a recess 14 that is a blind hole is adopted,
It is possible to employ a method in which convex portions are provided at both ends of the center of the blade portion 11 without using the shaft 13 and are loosely inserted and retained in the concave portions 14, and various other known shaft support methods. As shown in (2) of FIG. 1, the blade portion 11 has an open posture in which the fluid passage is fully opened along the axial direction A of the tubular body 10, and the tubular body 1
Between the axial direction A of 0 and a closed posture (not shown) that closes the flow path of the fluid at a right angle, freely 90 degrees, for example, (1) in FIG.
As shown in the figure, it can be rotated and displaced.

In the illustrated example as the operating portion 12, a blind hole-shaped mounting recess 15 is fixed to the outside of the cylindrical body 10, and the base end of the bar 16 is fixed to the mounting recess 15 with a set screw or a pin 17.
Although a pivotally mounted shaft mounting system is adopted, various other known systems can be adopted as such a shaft mounting system. The axial support direction of the vane portion 11 and the axial mounting direction of the operation portion 12 are made to coincide with each other. In the illustrated example, the shaft 13 such as the shaft 13 and the recessed portion 14 in the cylinder 10 has a cylindrical body 10. Mounting recess 1 on the extension line to the outside
5, pin 17, etc. are located. The bar 16 of the operation unit 12 pivotally mounted in this way is located outside the cylindrical body 10
Between the open instruction position and the close instruction position shown in FIG. 1B, it is possible to freely rotate 90 degrees, for example, as shown in FIG. 1A. Note that, on the outer surface of the cylindrical body 10, such indications of the open instruction position and the close instruction position are indicated as, for example, "open" and "closed", and the rotational position therebetween is indicated by, for example, "scale." .

The vane portion 11 and the operating portion 1 are constructed as described above.
2, magnetizing means 18 and 19 are attached respectively, and both ends of the magnetizing means 18 and 19 are always positioned through the cylindrical body 10 by magnetic force, so that the blade portion 11 is used for rotational positioning of the operating portion 12. It is adapted to be rotated and positioned.

These will be described in more detail. In the illustrated example, the magnetizing means 18 on one side, that is, the inner side, is the blade portion 1
One is attached and fixed to one corner portion, and the other, that is, the outer magnetic attachment means 19 is attached and fixed to one end portion of the bar 16 of the operation portion 12. Such magnetic attachment means 18, 19
There are possible examples of both using magnets and arranging the polarities of N and S in reverse, and an example of using a magnet for only one of them and a magnetic material such as iron for the other. Due to the magnetic force / attracting force between the two magnetizing means 18 and 19, the two magnetizing means 18 and 19 inside and outside the tubular body 10 are always in corresponding positions through the thickness of the tubular body 10. Has become. Therefore, the blade portion 11 and the operating portion 12 to which such magnetic attachment means 18 and 19 are respectively attached are also always in the corresponding position, and the bar 16 of the operating portion 12 outside the cylindrical body 10 is instructed to open. When it is rotationally positioned to the position, the cylindrical body 10
The inner blade portion 11 is also driven to be rotationally positioned in the open posture, and when the bar 16 of the operation portion 12 is rotationally positioned to the closing instruction position, the blade portion 11 is also driven to be rotationally positioned in the closed posture. Further, when the bar 16 of the operation portion 12 is rotationally positioned to the intermediate position, the blade portion 11 is also driven and rotationally positioned to the corresponding intermediate position.

Reference numeral 20 in the drawing denotes a different diameter step portion. The different-diameter step portions 20 are attached to the inlet and outlet of the cylindrical body 10 in pairs, and have a different diameter from the cylindrical body 10, and are arranged coaxially with the axial direction A of the cylindrical body 10. ing. In the illustrated example, two different diameter step portions 20 are provided, and the cylindrical body 1
The diameter gradually decreases from 0, and each different diameter step portion 20 can be easily selectively cut and removed. Therefore, the supply and discharge amount adjuster of the illustrated example is
Next, the outer (second step) both different diameter step portions 20 are cut and removed, and the inner (first step) both different diameter step portions 20 are also cut and removed, that is, only the cylindrical body 10 remains. The caliber can be easily changed depending on the state. Further, such a different diameter step portion 2
0 is an example of only one stage, an example of three stages or more, regardless of the illustrated example,
An example in which the diameter is larger than that of the cylindrical body 10 is possible.

First, each of the constituent members of such a supply / discharge amount adjuster, for example, the cylindrical body 10, the different-diameter step portion 20, the blade portion 11, etc., is made of a corrosion-resistant resin against acid, alkali, etc., respectively. For example, a polyvinyl chloride resin is used and integrally molded by blow molding or the like. That is, the cylindrical body 10, the cylindrical body 10 with the different-diameter step portion 20, the blade portion 11 and the like do not have the through hole 4 (see FIG. 2), and in view of the structure, they can be easily formed by blow molding or the like. It can be manufactured.

Secondly, the attachment positions of the magnetizing means 18 and 19 are not limited to those shown in the figures, and various attachment modes are possible. For example, in the illustrated example, the magnetizing means 18 is directly attached and fixed to the corner of the blade portion 11, but the magnetizing means 18 is not limited to this, and the magnetizing means 18 is rotated in the direction of rotation with respect to the flat blade portion 11. The blade portion 11 may be attached and fixed via a bracket so that the blade portion 11 is disposed at a position protruding by 22.5 degrees or 45 degrees in the opposite direction.
In this way, the magnetizing means 18 inside the tubular body 10
By shifting the position of the cylindrical body 10 with respect to 1, the cylindrical body 10
It is possible to shift the position of the magnetic sticking means 19 which always corresponds to the magnetic sticking means 18 on the outside by magnetic force, and the position of the bar 16 of the operating portion 12 from the blade portion 11 inside the tubular body 10. . Therefore, the bar 16 of the operating portion 12 is arranged at a position / posture that is most visible and easy to operate, and the magnetizing means 18 is positioned inside the tubular body 10 at a position corresponding to the magnetizing means 19. The example in which the magnetic attachment means 18 is slantingly projected by being displaced from the blade portion 11 by a bracket or the like is also expected to be highly utilized.

The present invention is constructed as described above. Then it becomes as follows. This fluid supply / discharge amount adjuster is installed and used by connecting and connecting the inlet and outlet of the cylindrical body 10 to front and rear pipes, ducts, hoses, and the like. Accordingly, the flow path is formed and the fluid flows in the cylindrical body 10, and the blade portion 11 is rotationally positioned between the open posture and the closed posture so that the flow rate of the fluid is the maximum fully opened state. Adjusted between 0 and 0 closed. Then, such adjustment of the supply / discharge amount is performed by the following operation. That is, the blade portion 11 inside the tubular body 10 and the tubular body 10
Both magnetizing means 18 and 19 attached to the bar 16 of the operation portion 12 on the outer side are caused by the magnetic force between the two magnetizing means 18 and 19, respectively.
Since the bar 16 of the operation portion 12 is rotationally positioned between the open instruction position and the close instruction position, the blade portion 11 is driven to follow the corresponding opening position. It is pivotally positioned to the posture or the closed posture. Therefore, this fluid supply / discharge amount regulator has the following first, second, and third aspects.

First, as described above, the magnetizing means 18 and 19 made of a magnetic material such as a magnet or iron are attached to the blade portion 11 inside the cylindrical body 10 and the operating portion 12 outside the cylindrical body 10, respectively. Then, by utilizing the magnetic force between each other, the blade portion 1 is attached to the operation portion 12.
1 is driven. That is, as in the conventional example of this kind shown in FIG. 2, the blade portion 11 is driven by the operation portion 12 by using the through hole 4, the shaft portion 2, the insertion guide portion 8, the insertion plate portion 6 and the like. is not. As described above, in this supply / discharge amount adjuster, the through hole 4 and the like are not provided in the tubular body 10, and the rotation of the shaft portion 2 and the insertion plate portion 6 are performed.
Since neither of them is taken in or out, leakage of liquid, gas, mist, powder, viscous material, or other fluids to the outside cannot occur and is reliably prevented.

Secondly, in the illustrated example, two different diameter step portions 20 are provided at the entrance and exit of the cylindrical body 10, respectively.
It becomes possible to connect and connect to pipes, ducts, hoses etc. before and after having multiple diameters. That is, depending on the diameter of the splicing connection, the pipe, the duct, the hose, etc. to be mounted and used, the different diameter step portions 20 are appropriately cut off and removed only on the outer side or both the inner side and the outer side, so that the plural diameters ( For pipes, ducts, hoses, etc. of 3 caliber in the illustrated example)
It can be connected and attached by connecting it with a crow, band, adhesive, etc. As described above, this supply / discharge amount regulator is not limited to the splicing connection, installation and use only for pipes, ducts, hoses, etc. of one kind of diameter, as in the conventional example of this kind described above.

Thirdly, the cylinder body 1 of the supply / discharge amount controller.
0 and the different diameter step portion 20 and the blade portion 11 can be integrally machined in consideration of their structures. Therefore, in the illustrated example, the processed product is formed by blow molding or the like of a corrosion-resistant resin, so that, as in the conventional example of this kind described above,
It is possible to easily and easily manufacture such a structural member without shaping or punching the plate material and without resorting to manual work.

[0024]

The fluid supply / discharge amount controller according to the present invention is
As explained above, since it is configured and works,
It has the following effects. Firstly, in claim 1, first, the blade portions inside the tubular body and the operation portion on the outside are provided with magnetic attachment means, respectively, and the blade portions are driven by the operation portion by utilizing mutual magnetic force. This prevents the leakage of gas, liquid, and other fluids to the outside. That is, internal organic / inorganic, acid / alkali gas, gas, liquid, powder,
It is possible to prevent fluid such as mist and the like, their crystals, etc. from leaking to the outside as in the conventional example of this kind described above.
Therefore, for example, it is possible to avoid the situation where such harmful gas or the like is mixed into the air conditioner in the factory and is scattered throughout the factory, or the harmful gas or the like corrodes various devices or products. .

Secondly, according to claim 2, in addition to this, by providing a cylindrical coaxial coaxial different diameter step portion,
Easy to use and versatile. That is, it is possible to connect and install to pipes, ducts, hoses, etc. before and after having multiple diameters. Compared with the conventional example of this kind, the connection and installation are wider, and it is easy and convenient to use. Versatility is improved.

Thirdly, according to the third aspect, since it is an integrally processed product of a corrosion resistant resin, it is excellent in cost and economy. That is, unlike the above-described conventional example of this type, it is not necessary to shape or punch a plate material, and it can be easily and easily obtained as a processed product by blow molding without resorting to manual work, Realized reduction of manufacturing cost. As described above, the effects of the present invention are remarkably large, such as the problems existing in this type of conventional example are eliminated.

[Brief description of drawings]

FIG. 1 shows an embodiment of a fluid supply / discharge amount controller according to the present invention, wherein (1) is a front external view and (2) is a side sectional view.

FIG. 2 shows a conventional fluid supply / discharge amount adjuster, and (1)
The figure is a front external view of the example, and (2) is a sectional view of the same side. (3) FIG. 3 is a side sectional view of another example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical body (conventional example) 2 Shaft part 3 Blade part (conventional example) 4 Through hole 5 Operation part (conventional example) 6 Insert plate part 7 Cylindrical body 8 Insertion guide part 9 Guide groove 10 Cylindrical body (The present invention) 11 Blade part (the present invention) 12 Operation part (the present invention) 13 Shaft 14 Recessed portion 15 Mounting recessed portion 16 Bar 17 Pin 18 Magnetic sticking means 19 Magnetic sticking means 20 Different diameter stepped portion A axis direction

Claims (3)

[Claims] 1. A supply / discharge amount adjuster for adjusting the supply / discharge amount of a fluid, comprising: a tubular body forming a flow path for the fluid; and a cross-section of the tubular body axially supported inside the tubular body. A wing portion rotatable in an open position along the axial direction of the cylindrical body and a closed position perpendicular to the axial direction of the cylindrical body, and a shaft on the outside of the cylindrical body. And an operating portion that can be rotationally positioned between the open instruction position and the close instruction position. The means is always positioned through the tubular body, and the blade is driven by the rotational positioning of the operating portion to be rotationally positioned. Machine. 2. The fluid supply / discharge amount controller according to claim 1, wherein a cylindrical coaxial different diameter step portion is attached to each of the inlet and outlet of the tubular body, and the different diameter step portion is cut and removed. A fluid supply / discharge amount regulator characterized in that it is possible. 3. The fluid supply / discharge amount adjuster according to claim 1 or 2, wherein the cylindrical body, the different-diameter step portion, and the blade portion are each formed of a processed product of a corrosion-resistant resin. A fluid supply / discharge amount controller characterized by.