KR960005277B1 - Multi Way Valve - Google Patents

Abstract

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Description

Multi Way Valve

1 is an exploded perspective view showing an embodiment of the present invention.

2 is a cross-sectional view illustrating an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: lower case 20: lower disc

30: upper disc 40: rotating body

50: communication tube 60: upper case

70: sealing means 80: driven gear

The present invention relates to a multi-way valve, in particular to the inlet and outlet of the multi-way valve is connected to the pipe having a gentle slope to prevent the pressure loss of the fluid to the maximum.

In general, the valve used for the fluid circulation serves to block or pass the fluid flowing into the tube and to remove it manually or automatically.

Conventionally, a multi-way valve has been proposed to reduce the number of installation of the valve by controlling the flow of fluid in three directions or more as one valve, and the technical configuration of such a multi-way valve is as follows.

That is, a case having one inlet and a plurality of outlets and a plurality of through-holes are arranged in a sealed fluid storage chamber so that the plurality of through-holes are aligned, and the bottom surface of the bottom disk is tightly fixed to the bottom of the case and rotatably close to the top surface of the bottom disk. It is mainly composed of a driving means for rotating the upper disk and the upper disk.

Therefore, when fluid enters the inlet of one side of the fluid storage chamber, the driving means rotates the upper disk to selectively match the long hole of the upper disk and the through hole of the lower disk, so that the fluid of the fluid storage chamber is bottomed through the through hole of the selected lower disk. It exits to the exit drilled in.

However, in the related art, as the fluid is stagnated in the storage chamber for a moment and flows out of the case, there is a problem in that the flow of fluid is not smooth and the flow rate is reduced. In particular, the inlet of the fluid storage chamber is formed on the side wall of the case and the outlet is Since the flow paths are formed at right angles because they are formed on the bottom of the case, when the fluid flows out of the multi-way valve, a considerable resistance is generated, resulting in a pressure loss such as a decrease in the total pressure.

It is therefore an object of the present invention to provide a multi-way valve in which the pressure loss of the fluid is reduced.

Hereinafter, described in detail by the accompanying drawings a preferred embodiment that can achieve the above object is as follows.

That is, the present invention has a circular insertion groove 12 in the body, the bottom surface of the insertion groove 12 having a plurality of outlets 11 in the same circumferential direction and; A plurality of through holes 21 arranged in the same circumferential direction so as to coincide with the outlet 11 and having a lower disc 20 inserted and fixed in a circular insertion groove 12; A lower surface is in close contact with the lower surface of the lower disk 20 so as to be rotatable, and an upper disk 30 having a hole 31 selectively matching the through hole 21 is fixed to a lower surface, and an upper disk ( A rotating body 40 having a communication tube 50 communicating with the hole 31 of the 30 fixedly installed thereon; An upper case 60 having an inlet 61 in close contact with the upper end 52 of the communication tube 50 and coupled to the lower case 10; It is characterized by being configured by the drive means for driving the rotating body 40.

The lower case 10 has a circular insertion groove 12 is formed in the center and a plurality of outlets 11 are formed in the same circumferential direction at a certain distance away from the center of the bottom surface of the insertion groove 12 It is a rescue department.

Since the fluid flows out to only one outlet 11 that is selectively opened and closed among the plurality of outlets 12 of the lower case 10, the pressure of the fluid can be prevented from falling.

The lower disc 20 has a plurality of through-holes 21 are arranged in the same circumferential direction so as to coincide with the outlet 11 drilled in the lower case 10, the insertion groove 12 of the lower case 10 It is a structural part that is inserted into and fixed.

The lower disc 20 is formed of carbon metal as a whole to keep the rotation coefficient of the upper disc 30 smoothly by keeping the friction coefficient with the upper disc 30 rotated at the upper surface of the lower disc 20 as low as possible. At the same time, it is possible to lower the load on the driving means for driving the upper disk 30 at the same time.

The upper disk 30 is fixedly installed on the bottom surface of the rotating body 40 and is installed in close contact so as to rotate on the upper surface of the lower disk 20 as the rotating body 40 rotates, and the through hole of the lower disk 20 ( A hole 31 selectively coinciding with 21 is provided in the same circumferential direction of the upper disc 30.

A communication tube 50 communicating with the hole 31 of the upper disc 30 is fixedly installed on an upper surface of the rotating body 40, and a gear part 42 and an upper disc 30 are disposed on the outer circumference of the rotating body 40. A hole 41 corresponding to the hole 31 of is formed.

The upper disc 30 fixed to the bottom of the rotating body 40 rotates on the upper surface of the lower disc 20 while the plurality of through holes 21 of the hole 31 of the upper disc 30 and the lower disc 20. The lower disc made of carbon metal is formed so that the fluid flows out into the selected through hole 21 so as to coincide with any one of them, and the entire upper disc 30 is made of a ceramic material to improve wear resistance and durability. 20) When it rotates in contact with the rotor, the sealing force is good and the friction coefficient is kept very low, so it rotates fairly smoothly.

Meanwhile, the contact surfaces of the upper and lower discs 30 and 20 are processed to be smooth and precisely close to the fluid without leaking even without small scratches like mirrors (0.2 to 0.8 with respect to the reference length of 0.25 mm with the maximum height roughness). Lapping to the surface roughness of S).

Therefore, a gap is hardly formed between the upper disc 30 and the lower disc 20 and the fluid does not escape between them.

The upper end 52 of the communication tube 50 fixed to the upper surface of the rotating body 40 is positioned above the center of the rotating body 40 and the lower end 51 of the communicating tube 50 is the rotating body 40. It is installed to be connected to the hole 31 of the upper disk 30 fixed to the bottom surface of the rotating body 40 to be connected to the hole 41 spaced a certain distance from the center of the).

Therefore, the communication tube 50 has a smooth inclination from the upper end 52 to the lower end 51, and the upper end 52 of the communication tube 50 rotates at the same position when the rotating body 40 rotates. The lower end 51 of the communication tube 50 plays a role of sending a fluid to the hole 31 of the upper disc 30 while revolving at a predetermined distance away from the center of the rotating body 40.

The diameter of the communication tube 50 is formed to be the same as the outlet 11 of the hole 31 of the upper disk 30 and the through-hole 21 of the lower disk 20 and the lower case 10. The purpose is to prevent the flow rate is reduced by allowing the fluid passing through the communication tube 50 and the hole 31, the through hole 21, the outlet 11 to receive a minimum resistance.

The upper case 60 has an inlet 61 in close contact with the upper end 52 of the communication tube 50, between the lower case 10 and the flange, the upper and lower cases 60, 10 between The packing 13 is inserted.

The inlet 61 of the upper case 60 is a place where the fluid is introduced from the outside, the rear of the inlet 61 is the upper end 52 of the communication tube 50 is in close contact with the fluid is configured to flow in The sealing means 70 is rotated to allow the top 52 of the communication tube 50 to rotate smoothly while preventing fluid from leaking between the top 52 of the communication tube 50 and the rear of the inlet 61 in close contact with the upper part 52. It is natural to have this installed.

The drive means for driving the rotating body 40 includes a driven gear 80 meshed with the gear 42 formed on the outer circumference of the rotating body 40; It is mainly composed of a step motor 81 for rotating the driven gear 80.

Therefore, when the rotational force of the step motor 81 is transmitted to the gear unit 42 of the rotating body 40 through the driven gear 80, the upper disk is fixed to the lower end of the rotating body 40 as the rotating body 40 rotates 30 is rotated so that the hole 31 of the upper disc 30 selectively coincides with any one of the plurality of through holes 21 of the lower disc 20.

Subsequently, when the fluid is injected into the inlet 61 of the upper case 60, the lower end 51 of the communication tube 50 through the upper end 52 of the communication tube 50 which is in close contact with the inlet 61 and the sealing means 70. The fluid is naturally moved to the through), and then the through hole 21 and the lower case 10 of the hole 31 of the upper disc 30 and the lower disc 20 communicated with the lower end 52 of the communication tube (50). It will be quickly discharged through the outlet (11).

The present invention is not limited to the above-described embodiments, and the fluid flow can be controlled in various forms by changing the arrangement position and number of outlets, the rotation angle control of the step motor, and the like.

The present invention as described above in the communication tube (50) in a state in which the fluid flowing through the inlet 61 of the upper case 60 is fixed to the upper surface of the rotating body 40 has a gentle inclination (communication tube ( 50) since the flow rate of the fluid does not decrease and the diameters of the holes 31, the through holes 21, the outlets 11, etc., which are connected to the communication tube 50 are the same, so that the fluid does not stagnate even at a moment. Since it is discharged immediately, the pressure loss of the fluid is hardly generated.

Claims (6)

The body is provided with a circular insertion groove 12, the bottom surface of the insertion groove 12, the lower case 10 having a plurality of outlets 11 in the same circumferential direction and the through hole to match the outlet 11 described above. A plurality of 21 are arranged in the same circumferential direction, the lower disk 20 is inserted into the circular insertion groove 12 and the lower surface is in close contact with the lower surface to be rotatable in the upper surface of the lower disk 20, the through hole An upper disc 30 having a hole 31 selectively coinciding with the 21 is fixed to the bottom surface, and a rotating body having a communication tube 50 connected to the hole 31 of the upper disc 30 fixed thereon. 40 and the upper case 60 having an inlet 61 in close contact with the upper end 52 of the communication tube 50 and coupled to the lower case 10; Multi-way valve, characterized in that formed by the drive means for driving the rotating body 40 The multi-way valve according to claim 1, wherein the lower disc 20 is made of carbon metal and the upper disc 30 is made of ceramic material. According to claim 1, wherein the upper end 52 of the communication tube 50 is located in the center of the rotating body 40 and the lower end 52 of the communication tube 50 to be positioned at a certain distance from the center of the rotating body 40 Multi-way valve, characterized in that the communication tube 50 has a gentle slope from the top 52 to the bottom 51. The upper end 52 of the communication tube 50 fixed to the upper end of the rotating body 40 to rotate in place when the rotating body 40 rotates and the lower end 51 of the communicating tube 50 is idle. Multi-way valves characterized in that. The diameter of the communication tube 50 is equal to the diameter of the holes 31 of the upper disk 30 and the through-holes 21 of the lower disk 20 and the outlets 11 of the lower case 10. Multiway valve, characterized in that to form. According to claim 1, The drive means for driving the rotating body 40 includes a driven gear (80) engaged with the gear portion 42 formed on the outer periphery of the rotating body (40); Multi-way valve, characterized in that consisting of a step motor (81) for rotating the driven gear (80).