JP3163455U - Non-return part and fluid one-way flow control valve provided with non-return part - Google Patents

Abstract

The present invention provides a check part and a fluid one-way flow control valve including a check part capable of reliably blocking a flow route of liquid and controlling the flow of liquid in one direction. A check part is located on a liquid flow route and includes a diverting rib, an inner ring, and an outer ring. The diversion rib 12 has both side portions corresponding to each other, and is located at a location corresponding to the opening 24 of the base 20. The inner ring 14 is provided on the side of the flow dividing rib 12, and has a surface and a first contact surface 14 b that is in a front-back relationship with the surface. The first contact surface 14 b is a first contact surface 14 b of the flange 22. It faces the pressing surface 22a. The outer ring 18 is disposed on the other side of the flow dividing rib 12 and has a surface and a second contact surface in a front-back relationship with the surface. The second contact surface is a second contact surface of the flange 22. It has a plurality of launch holes 18c facing the pressing surface and drilled from the surface to the second contact surface. [Selection] Figure 8

Description

  The present invention relates to a structure for controlling the flow of liquid, and more particularly, to a check part and a fluid one-way flow control valve including the check part.

  In the conventional structure for controlling the flow of the liquid in the pipe, the liquid flows in one direction by changing the position of the check part mounted in the control valve. When this control valve structure is used for a hot and cold water mixing device, mixing cold water or hot water alone can be prevented.

  As shown in FIG. 1, the conventional check part 1 is arranged in the screw 2 of the control valve, and a gap is provided between the inner wall of the screw 2. The check part 1 is kept in contact with the shoulder 2 a of the screw 2 by the elasticity of the spring 3. When the water pressure on the discharge side S1 is higher than the water pressure on the launch side S2, the launch port 2b is sealed by the check part 1 to block the liquid flow route. When the water pressure on the discharge side S1 is smaller than the water pressure on the launch side S2, the check part 1 is pushed up by the water pressure, the spring 3 is compressed, and the liquid leaks from the launch side S2 through the launch port 2b to the discharge side S1. May continue.

  The above-described check part 1 can cause water to flow in one direction. However, in order to move the check part 1 stably, the acting force of the spring 3 is necessary. In order to press-fit to the shoulder 2a, the water pressure on the water discharge side S1 had to be larger than the water pressure on the launch side S2. However, when the spring 3 is used for a long period of time and the structure is aged due to a decrease in elasticity, the check part 1 does not move stably, and closes to the shoulder 2a of the screw 2 to seal the launch port 2b. Therefore, cold water or hot water passing through different pipe lines may leak.

  As shown in FIG. 2, the check part 4 has a cover surface 4a and an extending portion 4b, and is made of a plastic material having a T-shaped cross section. The extension part 4b of the check part 4 penetrates the through hole 5a of the launch base 5 of the control valve, and a raised part 4c having a cross-sectional area larger than the area of the through hole 5a is formed thereon. The raised portion 4 c is brought into contact with the bottom surface of the launch base 5 in order to fix the check component 4 to the launch base 5. The cover surface 4 a of the check part 4 has flexibility and abuts against the inner surface 5 b of the launch base 5. When the water pressure on the discharge side S1 is higher than the water pressure on the launch side S2, the cover surface 4a covers several launch holes 5c of the launch base 5 to block the liquid flow route. When the water pressure on the discharge side S1 is smaller than the water pressure on the launch side S2, the water on the launch side S2 flows in from each launch hole 5c and collides with the cover surface 4a, and the cover surface 4a is deformed to cause the water on the discharge side S1. May leak in the direction.

  Although the above-described check part 4 can flow water in one direction, since the check part 4 is fixed so as not to move, the impact force generated by a large water flow from the launch side S2 As a result, the cover surface 4a is deformed, receives the impact force of water for a long time, and a water flow route may be blocked by a crack occurring or breaking at a connection portion between the cover surface 4a and the extending portion 4b. There is.

The main object of the present invention is to provide a check part that moves stably and reliably blocks the flow route of liquid.
Another object of the present invention is to provide a fluid one-way flow control valve having a check part for controlling the flow of liquid in one direction.

  The non-return part according to claim 1, which has been made to achieve the above object, is disposed in a base having an opening and a ring-shaped flange provided therein, and the flange includes a first pressing surface and a first pressing surface. A non-return part having a pressing surface of 1 and a second pressing surface provided in relation to the front and back, and provided with a flow dividing rib, an inner ring and an outer ring, and located on a liquid flow route, Is located at a location corresponding to the opening of the base, and the inner ring is provided on the side of the diverting rib, and the first contact is in the relationship between the surface and the front and back And the first contact surface is opposed to the first pressing surface of the flange, and the outer ring is disposed on the other side of the flow dividing rib, and is in a surface-to-surface and front-back relationship. A second contact surface, the second contact surface is opposed to the second pressing surface of the flange, and from the surface When the first contact surface of the inner ring is in contact with the first pressing surface of the flange, the flow route of the liquid is caused by the check part. When the second contact surface of the outer ring is brought into contact with the second pressing surface of the flange, the liquid passes through the launch hole of the check part and flows through the flow route. To do.

  It is preferable to further comprise a reinforcing ring connected to the surface of the inner ring.

  The outer diameter of the reinforcing ring is preferably equal to the diameter of the base opening.

  It is preferable that the reinforcing ring and the inner ring are integrally formed.

  It is preferable that the diversion rib has two support ribs intersecting each other, an open groove is provided between the adjacent support ribs, and each of the launch holes of the outer ring communicates with the open groove.

  The two support ribs of the diversion rib are preferably arranged so as to intersect each other vertically.

  The diversion rib has a center point and three support ribs. One end of each of the three support ribs is connected to the center point and is arranged at equal intervals, and an open groove is provided between adjacent support ribs. Each of the launch holes of the outer ring is preferably in communication with the open groove.

  The flow dividing rib, the inner ring and the outer ring are preferably integrally formed.

  The diverting rib, the inner ring and the outer ring are preferably made of a hard and elastic plastic.

  The fluid one-way flow control valve according to claim 10, which has been made to achieve the above object, is installed in a pipe line and divided into a discharge side and a launch side, and controls the liquid to flow in one direction. A fluid one-way flow control valve comprising a hollow base and a check part, the hollow base having a flange provided on an inner wall of the base and an opening provided on a liquid flow route, and the flange Has a first pressing surface and a second pressing surface provided in a relationship between the first pressing surface and the front and back surfaces, and the non-return component is movably connected to the base, and the thickness of the flange The inner ring and the outer ring are separated by a large predetermined distance, the inner ring has a first contact surface opposite the first pressing surface of the flange, and the outer ring is a second pressing surface of the flange. A second contact surface opposite the outer ring When the water pressure on the water discharge side is larger than the water pressure on the water discharge side, the first contact surface of the inner ring is brought into contact with the first pressing surface of the flange to block the flow route of the liquid. If the water pressure on the discharge side is smaller than the water pressure on the launch side, the second contact surface of the outer ring is brought into contact with the second pressing surface of the flange, and the liquid on the launch side flows through the launch hole and flows. It flows into the water discharge side via the route.

  It is preferable that the non-return part has diversion ribs that are respectively connected to the inner ring and the outer ring on both sides.

  The outer ring has a surface provided in a front-back relationship with the second contact surface, the launch hole is drilled from the surface to the second contact surface, and the diverting ribs are two supports that intersect each other. It is preferable that an open groove that communicates with the launch hole is provided between the support ribs that have ribs and are adjacent to each other.

  The inner ring preferably has a reinforcing ring connected to a surface provided in a relationship of front and back with the first contact surface.

  The outer diameter of the reinforcing ring is preferably equal to the diameter of the opening of the base.

  It is preferable that the reinforcing ring and the inner ring are integrally formed.

  The non-return part of the present invention and the fluid one-way flow control valve including the non-return part can move stably, reliably block the liquid flow route, and control the liquid flow in one direction. Can do.

It is sectional drawing which shows the conventional non-return component. It is sectional drawing which shows the conventional non-return component. It is a perspective view showing a fluid one way flow control valve provided with a non-return part by one embodiment of the present invention. FIG. 4 is a half sectional perspective view of FIG. 3. It is a disassembled perspective view which shows the fluid one-way flow control valve of FIG. 1 is a perspective view showing a check part according to an embodiment of the present invention. 1 is a perspective view showing a check part according to an embodiment of the present invention. It is sectional drawing which shows a state when the route | root which a discharge side and a launching side communicate with the check part is interrupted | blocked. It is sectional drawing which shows a state when the route | root which a discharge side and a launching side communicate by the check part is not interrupted | blocked. It is a perspective view which shows the non-return component by other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited thereby.

  Please refer to FIG. As shown in FIGS. 3 to 5, a fluid one-way flow control valve 100 according to an embodiment of the present invention includes a check part 10 and is installed in a conduit (not shown) through which liquid flows. The check part 10 of the present embodiment is disposed on the liquid flow route in the hollow base 20. As shown in FIG. 8, the flow route can be divided into a discharge side S <b> 1 and a launch side S <b> 2 by the check part 10.

  Please refer to FIG. 5 and FIG. As shown in FIGS. 5 and 8, the base 20 includes a flange 22 provided in a ring shape so as to extend from the inner wall portion toward the center portion, and an opening portion 24 formed so as to be surrounded by the flange 22. Have. The water discharge side S <b> 1 and the launch side S <b> 2 are communicated with each other through the opening 24. The flange 22 has a first pressing surface 22a and a second pressing surface 22b provided in a front-back relationship with the first pressing surface 22a.

  The check part 10 of this embodiment is integrally formed of a hard and elastic plastic, and includes a flow dividing rib 12, an inner ring 14, a reinforcing ring 16, and an outer ring 18.

  Please refer to FIG. 6 and FIG. As shown in FIGS. 6 and 7, the diversion rib 12 includes a support rib 12 a and a support rib 12 b that intersect perpendicularly to each other (that is, intersect in a cross shape). An open groove 12c is provided between the support ribs adjacent to each other. After the assembly of the check part 10 is completed, the diverting rib 12 is arranged so as to correspond to the opening 24 of the base 20, and the distance on both sides of the diverting rib 12 is larger than the thickness of the flange 22.

  The inner ring 14 is a disc body having an outer diameter larger than the diameter of the opening 24 of the base 20, and is connected to the side portion of the flow dividing rib 12. The inner ring 14 has a surface 14 a and a first contact surface 14 b provided in a front-back relationship with the surface 14 a, and after assembling the check part 10, the first contact surface 14 b is the flange 22. It arrange | positions so that the 1st pressing surface 22a may be opposed.

  The reinforcing ring 16 is a disc body like the inner ring 14, and is integrally formed with the surface 14 a of the inner ring 14. The outer diameter of the reinforcing ring 16 is preferably between the outer diameter of the inner ring 14 and the diameter of the opening 24 of the base 20. The outer diameter of the reinforcing ring 16 is substantially equal to the diameter of the opening 24 of the base 20.

  The outer ring 18 is a disc body having an outer diameter larger than the diameter of the opening 24 of the base 20, is connected to the other side of the flow dividing rib 12, and is disposed in parallel to the inner ring 14. The outer ring 18 includes a surface 18a, a second contact surface 18b provided in a front-back relationship with the surface 18a, and a plurality of launch holes 18c drilled from the surface 18a to the second contact surface 18b. Including. Each launch hole 18c communicates with an open groove 12c between support ribs provided adjacent to each other. After assembling the check part 10, the second contact surface 18 b of the outer ring 18 is disposed so as to face the second pressing surface 22 b of the flange 22.

  Hereinafter, the structure of the check part 10 of this embodiment will be described in detail.

  Please refer to FIG. As shown in FIG. 8, when the water pressure on the water discharge side S1 is higher than the water pressure on the launch side S2, the first contact surface 14b of the inner ring 14 is brought into contact with the second pressing surface 22b of the flange 22, thereby making a check. The discharge side S1 and the launch side S2 are not communicated with each other by the component 10, and the liquid flow route is blocked. Therefore, there is no possibility that cold water or hot water passing through different pipes leak and mix with each other.

  Please refer to FIG. As shown in FIG. 9, when the water pressure on the discharge side S1 is smaller than the launch side S2, the non-return component 10 is pressed and displaced by the water pressure on the launch side S2, and is disengaged from the second pressing surface 22b of the flange 22. The second contact surface 18b of the ring 18 is brought into contact, and the water on the launch side S2 passes through the open groove 12c from each launch hole 18c and enters the outlet side S1.

  Since the check part 10 of this embodiment moves stably by the flow dividing rib 12, it can prevent that the movement of a check part becomes unstable and the situation where the flow route of a liquid is interrupted | blocked generate | occur | produces. Further, since the check part 10 is integrally formed of a hard and elastic plastic, regardless of whether the water discharge side S1 or the launching side S2 is subjected to a high hydraulic pressure action, the first check of the flange 22 is performed. Suitable when the first contact surface 14b of the inner ring 14 is in contact with the pressing surface 22a or the second contact surface 18b of the outer ring 18 is in contact with the second pressing surface 22b of the flange 22 A good adhesion effect. In particular, when the first contact surface 14b of the inner ring 14 comes into contact with the first pressing surface 22a of the flange 22, the water on the water discharge side S1 does not pass through the opening 24, and the water is only in one direction. It can be controlled not to flow. Further, in the check part 10, the reinforcing ring 16 is arranged to increase the thickness, and the outer diameter of the reinforcing ring 16 is made substantially equal to the diameter of the opening 24 of the base 20, thereby allowing the water discharge of the inner ring 14. When the water pressure on the side S1 is higher than the water pressure on the launching side S2, it can be prevented from being lost due to shearing and the water flow route blocking function provided in the check part 10 is lost.

  In the above-described embodiment, the flow dividing rib 12 that connects the inner ring 14 and the outer ring 18 is formed in a cross shape, but may be formed in a shape as shown in FIG. The diversion rib 13 includes a center point 13a and three support ribs 13b each having an end connected to the center point 13a. The three support ribs 13b are arranged at equal intervals, and an open groove 13c is provided between the support ribs 13b adjacent to each other. Since the open groove 13 c communicates with the launch hole 19 a of the outer ring 19, the check part can be stably moved by the flow dividing rib 13.

  The preferred embodiments of the present invention have been disclosed as described above so that those skilled in the art can understand them, but these do not limit the present invention in any way. Various changes and modifications can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the utility model registration claim of the present invention should be broadly interpreted including such changes and modifications.

10 Check component 12 Dividing rib 12a Supporting rib 12b Supporting rib 12c Opening groove 13 Dividing rib 13a Center point 13b Supporting rib 13c Opening groove 14 Inner ring 14a Surface 14b First contact surface 16 Reinforcing ring 18 Outer ring 18a Surface 18b Second Contact surface 18c launching hole 19 outer ring 19a launching hole 20 base 22 flange 22a first pushing surface 22b second pushing surface 24 opening 100 fluid one-way flow control valve S1 discharge side S2 launch side

Claims (15)

Arranged in a base provided with an opening and a ring-shaped flange therein, the flange includes a first pressing surface and a second pressing surface provided in a relationship between the first pressing surface and the front and back surfaces. A non-return component located on the liquid flow path with diverting ribs, inner and outer rings,
The diversion rib has both side portions corresponding to each other, and is located at a location corresponding to the opening of the base,
The inner ring is provided on a side portion of the flow dividing rib, and has a surface and a first contact surface in a relationship of front and back with the surface, and the first contact surface is the first contact surface of the flange. 1 facing the pressing surface,
The outer ring is disposed on the other side of the diverting rib, and has a surface and a second contact surface in a front-back relationship with the surface, and the second contact surface is the surface of the flange. A plurality of launch holes that face the second pressing surface and are drilled from the surface to the second contact surface;
When the first contact surface of the inner ring comes into contact with the first pressing surface of the flange, the flow route of the liquid is blocked by the check component, and the second pressing surface of the flange When the second contact surface of the outer ring is in contact with the liquid, the liquid passes through the launch hole of the check part and flows through a flow route.   The check part according to claim 1, further comprising a reinforcing ring connected to the surface of the inner ring.   The check part according to claim 2, wherein an outer diameter of the reinforcing ring is equal to a diameter of the opening of the base.   The check part according to claim 2, wherein the reinforcing ring and the inner ring are integrally formed. The diversion rib has two support ribs crossing each other, and an open groove is provided between the support ribs adjacent to each other.
The check part according to claim 1, wherein each of the launch holes of the outer ring communicates with the open groove.   6. The check part according to claim 5, wherein the two support ribs of the flow dividing rib are arranged so as to intersect each other vertically. The diversion rib has a center point and three support ribs;
One end of each of the three support ribs is connected to the center point, and each of the three support ribs is arranged at equal intervals, and an open groove is provided between the support ribs adjacent to each other, and each of the launch holes of the outer ring is The check component according to claim 1, wherein the check component communicates with the open groove.   The check component according to claim 1, wherein the flow dividing rib, the inner ring, and the outer ring are integrally formed.   9. The check part according to claim 8, wherein the flow dividing rib, the inner ring, and the outer ring are made of hard and elastic plastic. A fluid one-way flow control valve that is installed in a pipe line and is divided into a discharge side and a launch side, controls a liquid to flow in one direction, and includes a hollow base and a check part.
The hollow base has a flange provided on an inner wall of the base and an opening provided on the flow path of the liquid, and the flange includes a first pressing surface and the first pressing surface. And a second pressing surface provided in a relation of front and back,
The non-return component includes an inner ring and an outer ring that are movably connected to the base and are separated by a predetermined distance greater than the thickness of the flange, the inner ring being the first pressing surface of the flange. The outer ring has a second contact surface facing the second pressing surface of the flange, and the outer ring has a plurality of perforated advancements. Have water holes,
When the water pressure on the water discharge side is larger than the water pressure on the launch side, the first contact surface of the inner ring is brought into contact with the first pressing surface of the flange, and the flow route of the liquid is interrupted.
When the water pressure on the water discharge side is smaller than the water pressure on the launch side, the second contact surface of the outer ring abuts on the second pressing surface of the flange, and the liquid on the launch side is A fluid one-way flow control valve, which passes through a water hole and flows into the water discharge side through the flow route.   11. The fluid one-way flow control valve according to claim 10, wherein the check part includes a diverting rib having both sides connected to the inner ring and the outer ring. The outer ring has a surface provided in a front-back relationship with the second contact surface,
The launch hole is drilled from the surface to the second contact surface,
The diversion rib has two support ribs intersecting each other, and an open groove communicating with the launch hole is provided between the support ribs adjacent to each other. The fluid one-way flow control valve described.   11. The fluid one-way flow control valve according to claim 10, wherein the inner ring has a reinforcing ring connected to a surface provided in a relation of front and back with the first contact surface.   The fluid one-way flow control valve according to claim 13, wherein an outer diameter of the reinforcing ring is equal to a diameter of the opening of the base.   The fluid one-way flow control valve according to claim 14, wherein the reinforcing ring and the inner ring are integrally formed.

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