KR20050078047A - Valve for changing flow paths - Google Patents

Abstract

The present invention relates to a flow path switching valve having a plurality of inlets and outlets and selectively changing them.

The present invention, the inner bottom surface of the body portion is formed with a plurality of communication holes corresponding to the plurality of inlets and outlets, respectively; A lower disk facing a lower surface of the inner bottom surface of the body portion and forming a central through hole and a plurality of outer through holes around the inner bottom to coincide with the holes; A lower surface is in contact with the lower disk, the upper surface is formed with a first concave groove connecting the central through hole and one outer through hole of the lower disk, and a second concave groove connecting the plurality of outer through holes adjacent to each other disk; A rotating plate coupled to the upper disk to rotate the upper disk with respect to the lower disk; and covering the inner space so that the lower disk, the upper disk, and the rotating plates are sequentially disposed in the body portion, and a shaft of the rotating plate penetrates in the center thereof. It provides a flow path switching valve comprising a cover.

According to the present invention, the upper and lower disks for channel switching can be effectively mirrored to achieve effective sealing, and can easily be discharged to the outside even if foreign substances penetrate.

Description

VALVE FOR CHANGING FLOW PATHS

   The present invention relates to a flow path switching valve having a four-way flow path and selectively changing them, and more particularly, having a plurality of inlets and outlets, which can selectively change the flow path, and the upper and lower discs for the flow path switching. It is possible to achieve an effective sealing by mirror treatment, and also relates to a flow path switching valve that can be easily discharged to the outside even if foreign substances penetrate.

Various flow path switching valves have been proposed in the related art. Most of them have one inlet or one outlet. An example of such a flow path switching valve is shown in FIG.

This prior art has a rotary valve 116 rotatably stiffened in the valve body 115, and the outer circumferential surface of the rotary valve 116 guides streamlined guide surfaces 117 and 118 for guiding fluid flowing in the direction in which the valve is switched. The valve body 115 has a three-way valve structure having three inlets or outlets (A, B, and C).

Therefore, this conventional technique cannot vary the flow path in various ways, and therefore, there is a limitation in using only one fluid, and a perfect sealing cannot be expected even between the contact surface of the valve body 115 and the rotary valve 116. .

On the other hand, the direction switching valve device having two inlets and two outlets, respectively, is also disclosed as shown in FIG. This prior art relates to a directional valve device of the Republic of Korea Patent Publication No. 1998-74533, which adjusts the adjustment rod of the valve cap to rotate the internal direction ball to 180 °, the flow path of the fluid, that is, heating return and heating It is a four-way directional valve device that can selectively change the path of water supply according to the conditions of use.

This prior art is corresponding to the front and rear, left and right and the inner passage is connected to the body 201 corresponding to the front adjustment rod 211 and the rear return hole 212, the entry and exit hole 214 on the left side and the right and left access A valve cap 206 in which an o-ring 209 is fitted to the adjusting rod 211 is provided, and a direction change ball 205 is formed in which a hole 213 and an upper supply hole 215 are formed. 204 is coupled to each other, a left sealing screw 202 'is installed at the left entrance and exit of the sealing 203 and the O-ring 210', and the sealing 203 'and the O-ring 210' are installed at the right entrance. The right sealing screw 202 is fastened to each other is characterized in that coupled.

However, in the conventional technology, since most of the sealing is made by using a rubber material or the like, if a certain time is used, leakage of the fluid occurs inevitably, and when foreign matter enters the inside of the valve, water leaks between the flow paths. Is generated so that the conveying fluids are mixed with each other and thus cannot accurately switch flow paths.

The present invention is to solve the above-mentioned conventional problems, the object of which is to switch the flow path between the plurality of inlets and outlets very easily, the sealing between the flow path is effectively prevented the occurrence of water leakage, the inside of the valve Even if foreign matter penetrates, it is easy to be discharged to the outside of the valve to provide a flow path switching valve that effectively prevents damage to the internal components.

In order to achieve the above object, the present invention is provided with a plurality of inlets and outlets in the flow path switching valve that can change the flow path by selectively switching them,

A body portion having a plurality of holes formed in the inner bottom surface thereof in communication with a plurality of inlets and outlets;

A lower disk facing a lower surface of the inner bottom surface of the body portion and forming a central through hole and a plurality of outer through holes around the inner bottom to coincide with the holes;

A lower surface is in contact with the lower disk, the upper surface is formed with a first concave groove connecting the central through hole and one outer through hole of the lower disk, and a second concave groove connecting the plurality of outer through holes adjacent to each other disk;

A rotating plate coupled to the upper disk to rotate the upper disk relative to the lower disk; and

A cover portion covering the inner space to sequentially arrange the lower disk, the upper disk, and the rotating plate in the body portion, and a cover portion through which the shaft of the rotating plate penetrates in the center thereof. By providing a flow path switching valve, characterized in that the flow path switching between the outlet port is made.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The flow path switching valve 1 according to the present invention is provided with a plurality of inlets (2) and (4) and outlets (6) (8) can be changed to the flow path by selectively switching them.

As shown in detail in FIG. 1, the flow path switching valve 1 of the present invention forms a hollow space therein, and a plurality of inlets (2) (4) and outlets (6) (8) are provided on the bottom surface, respectively. It has a body portion 10 is formed a plurality of communication passages corresponding to the ().

That is, the body portion 10 is a plurality of inlet (2) (4) and the outlet (6) (8) is formed integrally to the lower outer side, the first of the plurality of inlet (2) (4) As shown in FIG. 5, the inlet 2 extends from the first hole 12 located approximately 45 ° clockwise with respect to the vertical line P of FIG. 5, and the second inlet 4 is It extends in common from the third and fourth holes 16 and 18 located approximately 225 degrees and 315 degrees clockwise with respect to the vertical line P. FIG.

Further, the first outlet 6 of the plurality of outlets 6 and 8 extends from the second hole 14 located approximately 135 ° clockwise with respect to the vertical line P shown in FIG. The second outlet 8 of the plurality of outlets 6 and 8 extends from the central fifth hole 20 of the body portion 10.

In each of the inlets (2) (4) and outlets (6) (8) are each formed in the inner bottom surface of the body portion 10, each of the first to fifth holes (12) (14) (16) (18) (20) are formed to penetrate from the inlets (2) (4) and the outlets (6) (8) to the inner space of the body portion (10).

In addition, in the present invention, a lower surface thereof faces the inner bottom surface of the body portion 10 and forms a central through hole 26 and a plurality of outer through holes 28a, 28b, 28c, and 28d around it. The lower disk 24 is provided.

The lower disk 24 has protrusions 30a and 30b formed on both sides of its outer circumferential edge, respectively, and the protrusions 30a and 30b are formed in the longitudinal direction on the inner circumferential wall of the body portion 10. It is connected to the guide grooves 32a and 32b so as to be slidable. In addition, the lower disk 24 has a cross-sectional shape coinciding with the inner cross-section of the body portion 10, and is precisely matched to the inside of the body portion 10 to be inserted into the inner portion, and the central through hole 26 ) And a plurality of outer through holes 28a, 28b, 28c, and 28d around the first to fifth holes 12, 14, 16, 18, and 20 of the body portion 10. ) Matches their size and number.

As such, the lower disk 24 forms a central through hole 26 and a plurality of outer through holes 28a, 28b, 28c, and 28d around the upper and lower surfaces thereof. ) Is fitted inside the body portion 10, these through holes 26, 28a, 28b, 28c, 28d and the first to fifth holes 12 of the body portion 10 ( 14) (16) (18) (20) coincide with each other.

That is, as shown in FIGS. 4 and 5, the central through hole 26 coincides with the center of the fifth hole 20 of the body portion 10, and a plurality of outer through holes 28a and 28b. ) 28c and 28d are disposed corresponding to the first to fourth holes 12, 14, 16 and 18, respectively.

Therefore, when the lower disk 24 is coupled to the body portion 10, the first to fifth holes 12, 14, 16, 18, and 20 of the body portion 10 have a lower disk ( The flow paths communicate with each other by overlapping the center through hole 26 and the plurality of outer through holes 28a, 28b, 28c, and 28d of the 24.

Meanwhile, as shown in FIG. 1, between the lower disk 24 and the body portion 10, the central through hole 26 and the plurality of outer through holes 28a and 28b of the lower disk 24 ( A plurality of o-rings 38 are disposed correspondingly to 28c) and 28d, respectively, and are sandwiched between the lower disk 24 and the body portion 10.

The o-rings 38 are made of a material having excellent elastic resilience, each of which has a central through hole 26 and a plurality of outer through holes 28a, 28b, 28c and 28d of the lower disk 24. The first to fifth holes 12, 14, 16 and 18 of the body portion 10 are squeezed between the lower disc 24 and the bottom surface of the body portion 10, 20 and the central through hole 26 of the lower disk 24 and the plurality of outer through holes 28a, 28b, 28c and 28d coincide with each other, the flow paths stably without leakage of fluid. Ensure communication.

In addition, in the present invention, the lower surface is in surface contact with the upper surface of the lower disk 24, and the lower surface has a first recess groove 42 connecting the central through hole 26 and one of the plurality of outer through holes with each other. The upper disk 40 is formed with a second concave groove 44 of an arc connecting the plurality of adjacent outer through holes.

In the above, the upper surface of the lower disk 24 and the lower surface of the upper disk 40 are mirror-processed to be in surface contact with each other, and the materials of these disks 24 and 40 are ceramics capable of producing mirror surfaces. Any material similar to is possible. As such, the lower disk 24 and the upper disk 40 are mirror-contacted with each other, and thus serve as a sealing contact surface that prevents fluid leakage therebetween, and even if foreign matter penetrates between the mirrors, the disk 24 ( It is easy to be discharged to the outside of the valve by rotation of 40) and water flow.

On the other hand, the upper disk 40 is located in the fifth hole 20 connected to the outlet 8 of the body portion 10, the first concave groove 42 formed in the lower surface thereof, as shown in FIG. The center through hole 26 of the lower disk 24 and the outer through hole 28a of the lower disk 24 located in the first hole 12 communicating with the inlet 2 are connected.

Thus, the first recess 42 is formed in the radial direction of the upper disk 40 for this connection.

In addition, the second recess 44 has an outer through hole 28b of the second hole 14 connected to the remaining outlet 6 and an outer through hole located in the third hole 16 of the remaining inlet 4. It is a structure for connecting the ball 28c, which is formed in an arc shape in the circumferential direction with respect to the circular cross section of the upper disk 40.

Therefore, due to the above structure, each of the first concave groove 42 and the second concave groove 44 of the upper disk 40 is one of the plurality of inlets (2) (4) and the plurality of outlets ( 6) (8) is arranged to connect each one at the same time. That is, from the inlet (2) to the outlet (8), at the same time from the inlet (4) to the outlet (6), or from the inlet (4) to the outlet (8), at the same time to the inlet (2) To the outlet (6).

In addition, the upper disk 40 is connected to the rotating plate 50 on the upper side to achieve rotation between the lower disk 24, the rotating plate 50 is the lower surface on the upper surface of the upper disk 40 The protrusions 54 which are in contact with each other and coincident with the plurality of cutting grooves 52 formed on the outer peripheral surface of the upper disk 40 are formed on the outer peripheral surface. Due to the coupling structure, the rotary plate 50 is fitted with the protrusions 54 coupled to the cutting groove 52 of the upper disk 40, and the shaft 56 for rotating the rotary plate 50 has an upper surface center. Protrudes a certain length from.

In addition, the present invention includes a cover part 70 which covers the inner space so that the lower disk 24, the upper disk 40, and the rotating plate 50 are sequentially disposed in the inner space of the body portion 10. The cover part 70 forms a hole 72 through which the shaft 56 of the rotating plate 50 passes.

In addition, the cover part 70 has a plurality of screw fixing flanges 76 on the outer circumferential surface thereof so as to correspond to the plurality of screw fixing ribs 74 formed on all sides of the outer circumferential surface of the body part 10 for fixing with the body part 10. ). Accordingly, the cover part 70 may include the O-rings 38, the lower disk 24, the upper disk 40, and the rotating plate 50 in the inner space of the body part 10, in turn. When assembled as a bolt 78, the flow path switching valve 1 of the present invention can be assembled.

Reference numeral 80 is a bracket protruding from the body portion (10).

The flow path switching valve 1 of the present invention configured as described above has a plurality of inlets 6 and 8 from the plurality of inlets 2 and 4 by rotation of the upper disc 40 with respect to the lower disc 24. The flow to the channel is alternately made.

That is, as shown in Figure 1, the projections (30a, 30b) are fitted into the guide grooves (32a) 32b of the body portion 10, and the O-rings (38) between the narrowing therebetween The lower disk 24 is not rotated even when the upper disk 40 is rotated, and always remains fixed. In addition, the upper disk 40 is rotated by the rotation of the rotating plate 50, the upper disk 40 is rotated because the protrusions 52 of the rotating plate 50 are connected to the cutting groove 52 formed on the upper surface The state of the mirror contact with the lower disk 24 is maintained.

Thus, the flow path switching valve 1 of the present invention is operable between the first mode as shown in FIG. 6 and the second mode switched to the flow path as shown in FIG.

In the first mode, the first recessed groove 42 of the upper disk 40 is located in the center of the lower disk 24 in the fifth hole 20 of the outlet port 8 disposed in the center of the body portion 10. The through hole 26 and the outer through hole 28a of the lower disk 24 located in the first hole 12 at the 45 ° point of the inlet 2 of the body portion 10 are connected. In addition, the arc-shaped second concave groove 44 and the outer through hole 28b of the lower disk 24 located in the second hole 14 at 135 ° of the remaining outlet 6 of the body portion 10 and The outer through hole 28c of the lower disk 24 located in the third hole 16 at the 225 ° point of the remaining inlet 4 of the body portion 10 is formed in an arc shape.

In addition, the remaining outer through hole 28d of the lower disk 24, that is, the outer through hole 28d located in the fourth hole 18 of the body portion 10, is blocked by the upper disk 40. to be.

The second mode is rotated 90 degrees counterclockwise from the first mode or rotated 270 degrees clockwise. Such rotation is performed by the user holding the shaft 56 protruding from the rotating plate 50 and rotating in a desired direction, and the lower disk having the upper disk 40 connected to the rotating plate 50 fixed to the body portion 10. It is easily made by rotating about 24.

In this second mode, as shown in FIG. 7, the first recess 42 of the upper disk 40 is located in the fifth hole 20 of the outlet 8 in the center of the body 10. The center through hole 26 of the lower disk 24 and the outer through hole 28d of the lower disk 24 located in the fourth hole 18 at the 315 ° point of the inlet 4 of the body portion 10 ) Is a structure that connects. In addition, the arc-shaped second concave groove 44 and the outer through hole 28b of the lower disk 24 located in the second hole 14 at 135 ° of the remaining outlet 6 of the body portion 10 and The outer through hole 28a of the lower disk 24 located in the first hole 12 at the 45 ° point of the remaining inlet 2 of the body portion 10 is formed in an arc shape.

The remaining outer through hole 28c of the lower disk 24, that is, the outer through hole 28c located in the third hole 16, is blocked by the upper disk 40.

As such, the first concave groove 42 of the upper disk 40 connecting the flow path in the first mode and the second mode is the inlet 2 or the inlet 4 of the body portion 10, as shown in FIG. The fluid is received from the holes 12 or holes 18 formed on the side of the lower disk 24 via the through holes 28a or the through holes 28d, and the outlet port 8 of the body portion 10 is received. It serves as a passage for delivering the fluid to the hole 20 formed in the side, respectively.

This fluid flow mechanism is equally applied to the second concave groove 44 of the upper disk 40 connecting the flow path in the first mode and the second mode, but only the lower disk connected by the second concave groove 44. Since only the positions of the through holes of 24 are different, further description thereof will be omitted.

On the other hand, the present invention is provided with a separate stopper (not shown) or angle display means (not shown) to accurately adjust the angle of the lower disk 24 when the upper disk 40 is rotated as described above Can always achieve a flow path switching between the first mode and the second mode accurately. In addition, although the above described the manual operation of the shaft 56 by the user, the present invention can of course adopt a mechanical operation using electric motors (not shown).

In addition, in the present invention, the inlet (2) (4) and the outlet (6) (8) are arranged in reverse, respectively, and the outlet (2) (4), and the inlet (6) (8) It can be seen that the euro transition effect can be obtained.

And, in the above, the holes located at approximately 45 °, approximately 135 °, approximately 225 ° and 315 ° mean that there is no problem in the implementation of the present invention even if some deviation from the angle. It is not intended to limit the invention to the angle alone.

Although shown and described above with respect to the preferred embodiments of the present invention, the above embodiments are merely exemplary, and the present invention is not limited to these structures in any case. In addition, those skilled in the art will be able to modify and modify the structures of the present invention from the disclosure of the present invention, in particular the materials and shapes of the respective components will be appropriately selected and modified from those available in the art, The invention should be considered to include them.

As such, the present invention includes all such modifications and variations, materials and shape changes within the spirit and scope of the invention as set forth in the claims below.

As described above, according to the present invention, the user rotates the shaft 56 of the rotating plate 50 to switch between the first mode and the second mode, so that the plurality of inlets (2) and (4) and the outlets (6) and (8) are provided. Switching between euros is very easy.

In addition, between the upper disk 40 and the lower disk 24 may be mirrored to obtain a sealing effect, thereby achieving a perfect sealing at the time of switching the flow path and the occurrence of leakage is effectively prevented.

In addition, even if foreign matter penetrates into the valve, it is easy to be discharged to the outside of the valve with the fluid during the relative rotation of the upper and lower disks 24 and 40, so that the damage of the valve is effectively prevented.

1 is an exploded perspective view showing a flow path switching valve according to the present invention;

2 is a plan view of the flow path switching valve according to the present invention seen from above;

3 is a plan view of the upper disk provided in the flow path switching valve according to the present invention;

4 is a plan view of a lower disk provided in the flow path switching valve according to the present invention;

5 is a plan view showing the inner flow path of the body portion provided in the flow path switching valve according to the present invention;

6 is an explanatory diagram showing a state where the flow path switching valve according to the present invention is arranged in the first mode;

7 is an explanatory view showing a state in which a flow path switching valve according to the present invention is arranged in a second mode;

8 is a cross-sectional view showing a vertical coupling state of the flow path switching valve according to the present invention;

9 is a cross-sectional view of a flow path switching valve having one inlet and two outlets according to the prior art; And

10 is an exploded assembly view of a flow path switching valve having two inlets and two outlets according to the prior art.

<Description of the symbols for the main parts of the drawings>

1 .... Euro-switched valve 2, 4 .... inlet

6,8 ... outlet 10 .... body

12,14,16,18,20 .. First to fifth hole

24 .. Lower disc 26 .... Center through hole

28a, 28b, 28c, 28d ... Outer Through Hole

38 .... O-Ring 40 .... Upper Disc

42 .. The 1st recess groove 44 .... The 2nd recess groove

50 .... tumbler 52 .... cutting groove

54 .... Turning 56 .... Shaft

70 .... Cover 74 .... Screw fixing rib

76 .... Screw flange 80 .... Bracket

115 .... valve body 116 .... rotary valve

201 .... Body 211 .... Adjustment rod

212 .... return hole 215 .... supply hole

Claims (11)

In the flow path switching valve having a plurality of inlets and outlets and selectively switching them to change the flow path, A body portion 10 having a plurality of holes 12, 14, 16, 18, and 20 communicating with each of the inlets and outlets on the inner bottom surface; A bottom surface thereof faces the inner bottom surface of the body portion 10, and the center through hole 26 and a plurality of outer sides thereof so as to coincide with the holes 12, 14, 16, 18, and 20. A lower disk 24 forming through holes 28a, 28b, 28c and 28d; A lower surface of the lower disk 24 is in contact with the lower surface, the first recess groove 42 for connecting the central through hole 26 and one outer through hole 28a of the lower disk 24, and each other An upper disk 40 having a second concave groove 44 connecting the plurality of adjacent outer through holes 28b and 28c; A rotating plate 50 coupled to the upper disk 40 to rotate the upper disk 40 with respect to the lower disk 24; and Cover the inner space to arrange the lower disk 24, the upper disk 40 and the rotating plate 50 in the body portion 10, and the shaft 56 of the rotating plate 50 is penetrated in the center Including a cover 70; the flow of the flow path between the inlet (2) 4 and the outlet (6) (8) by the rotation of the upper disk 40 with respect to the lower disk 24, characterized in that Flow path switching valve. The method of claim 1, wherein the first inlet (2) of the plurality of inlets (2) (4) extends from the first hole 12 located approximately 45 degrees clockwise with respect to the vertical line (P) and The second inlet 4 extends in common from the third and fourth holes 16, 18 located at approximately 225 ° and 315 ° clockwise relative to the vertical line P; The first outlet 6 of the plurality of outlets 6 and 8 extends from the second hole 14 located approximately 135 ° clockwise with respect to the vertical line P, and the plurality of outlets 6 6) The flow path switching valve, characterized in that the second outlet 8 of the (8) extends from the central fifth hole (20) of the body portion (10). The lower disk 24 has protrusions 30a and 30b formed on both sides of its outer circumferential edge, respectively. A plurality of guide grooves 32a and 32b formed in the longitudinal direction are connected to be slidable; The lower disk (24) is a flow path switching valve, characterized in that the cross-sectional shape is fitted inward to match the inner cross-section of the body portion (10). The center disc hole 26 of the lower disc 24 and the plurality of outer through holes 28a, 28b, 28c and 28d between the lower disc 24 and the body portion 10. A plurality of o-rings (38) are disposed correspondingly to each of the) to be sandwiched between the lower disk (24) and the body portion (10). The method of claim 1, wherein the upper surface of the lower disk 24 and the lower surface of the upper disk 40 are mirror-processed, respectively, and serve as a sealing contact surface for preventing fluid leakage therebetween. , Even if foreign matter penetrates between these mirror surfaces, the flow path switching valve, characterized in that to be discharged to the outside of the valve by the rotation and water flow of the disk (24) (40). 2. A groove according to claim 1, wherein the first recess (42) is formed in the radial direction of the upper disk (40); The second concave groove 44 is a flow path switching valve, characterized in that formed in the circumferential arc shape with respect to the circular cross section of the upper disk (40). According to claim 1, wherein the upper disk (40) forms a plurality of cutting grooves 52 on the outer circumferential surface, the rotating plate 50 is formed on the outer circumferential surface of the projections 54 are coupled to the cutting groove (52) Flow path switching valve, characterized in that the fitting by fitting. 8. The flow path switching valve according to claim 7, wherein the rotating plate (50) has a shaft 56 protruding a predetermined length from the center of the upper surface thereof. The method of claim 1, wherein the cover part 70 forms a plurality of screw fixing flanges 76 on its outer peripheral surface to match the plurality of screw fixing ribs 74 formed on the outer peripheral surface of the body portion 10, the bolt 78 is a flow path switching valve characterized in that the assembled. The lower disk of claim 1, wherein the valve is located in the fifth hole 20 of the outlet port 8 in which the first recess 42 of the upper disk 40 is disposed at the center of the body 10. A center through hole 26 of 24 and an outer through hole 28a of the lower disk 24 located in the first hole 12 at the 45 ° point of the inlet 2 of the body portion 10; And, The arc-shaped second recessed groove 44 has an outer through hole 28b of the lower disk 24 located in the second hole 14 at 135 ° of the remaining outlet 6 of the body portion 10 and the body. Characterized in that it is arranged in a first mode for connecting the outer through hole 28c of the lower disk 24 located in the third hole 16 at the 225 ° point of the remaining inlet 4 of the part 10 in an arc shape. Flow switching valve. The lower disk of claim 1, wherein the valve is located in the fifth hole 20 of the outlet port 8 in which the first recess 42 of the upper disk 40 is disposed at the center of the body 10. The center through hole 26 of the 24 and the outer through hole 28d of the lower disk 24 located in the fourth hole 18 at the 315 ° point of the inlet 4 of the body portion 10 are connected. ; In addition, the arc-shaped second recess 44 has an outer through hole 28b of the lower disk 24 positioned at the second hole 14 at 135 ° of the remaining outlet 6 of the body portion 10. And a second mode for connecting the outer through hole 28a of the lower disk 24 located in the first hole 12 at the 45 ° point of the remaining inlet 2 of the body portion 10 in an arc shape. Flow path switching valve.