KR101130945B1 - Check valve device - Google Patents

Abstract

A check valve device is disclosed. Disclosed is a connecting means for connecting the tube tubes disposed on both sides and allowing the flow direction of the fluid in one direction, a disk packing for opening and closing the opening and closing in the connection means, a slider and guide for linear movement of the disk packing, the slider and And support means for resiliently supporting the slider between the guides. Such a check valve device provides the advantage of preventing water from the main tank from leaking or flowing back towards the filter. In addition, it prevents the switch malfunction due to instantaneous heat flow that may occur in the booster pump in the sensor such as a low pressure switch.

Valve body, cap member, fixing member, disc packing, slider

Description

Check valve device {CHECK VALVE DEVICE}

The present invention relates to a check valve device, and more particularly, to a check valve device disposed in the flow path of the pipeline to prevent the reverse flow of the fluid.

In general, a check valve is a valve device that is disposed in the flow path of a pipe to allow forward flow of fluid flowing along the pipe and to prevent reverse flow.

Such a check valve is used for the connection portion of the tube tube in the water purifier to facilitate the connection of the tube tube, to prevent the outflow of water from the connection portion, it is possible to cause the flow of water in one direction.

Tube tube used as a liquid transfer tube, such as a water purifier pipe is usually made of a synthetic resin material, the tube tube is connected as a connection valve due to difficulties in the configuration of the pipe to form a liquid flow path.

The overall prior art relating to a check valve capable of connecting a tubular tube of a water purifier is disclosed in detail in Utility Model No. 213472.

In the prior art, a cap member coupled to a collector to which a tube tube is inserted and fixed is in high frequency contact with a body member, and a check valve is provided at a predetermined inner portion to implement a connection valve for flowing a fluid in only one direction. The sealing part has a hemispherical shape, and the outer surface part has a packing coupled to a certain part, and the first end of the body member contacting the packing part of the sealing part is provided with a rounding part to be closed while making a surface contact, and the first end of the body member It relates to a tube pipe connection valve with a check valve with a rib formed between the jaw and the second step so that the sealing part can be guided open and closed.

The prior art as described above seals the inlet of the fluid formed inside the first step portion while the sealing of the seal is in contact with the rounded portion of the first step portion when the seal is closed, the sealing operation of the seal of the seal It is made by being pressurized by the spaced apart from the inlet of the fluid formed in the first step portion, since the sealing portion is formed rounded to the inlet side requires a high operating pressure to open the inlet, there was a problem that can not be used at low water pressure .

In addition, since the sealing part is configured to be linearly guided by the ribs in contact with the inner circumferential surface of the rib along the circumferential line, the friction area of the rib and the sealing part is wide, so that the operation is not smooth, and the packing of the sealing part is in direct contact with the rib. Since the opening and closing operation of the seal is made in the seal of the seal may be easily worn or the problem that the packing is separated from the seal may occur.

The present invention has been made in order to solve the above problems of the prior art, it can be applied in the tube tube in which the low pressure fluid flows due to the small opening pressure for the inlet through which the fluid passes, wear of the packing for opening and closing of the inlet It is an object of the present invention to provide a check valve device that is low in weight and stable in fixing of packings.

The configuration of the check valve device according to the present invention has an inlet portion is inserted into the tube tube is fixed, the other tube tube is inserted into the other side is fixed, the flow passage of the fluid connecting the inlet and the outlet portion Is formed inside, the opening and closing port formed in the narrower than the flow passage is connected to the connecting means formed on one side of the distribution passage, the linear disk packing to open and close the opening and closing the flow passage of the connecting means; A plurality of supports connected to the disk packing to guide the linear movement of the disk packing and contacting the inner wall of the flow passage to provide linear movement, the horizontal support extending from the support along the flow passage; A slider is formed, and a guide tool is inserted to restrain the horizontal guide of the slider to be guided horizontally. And support means for elastically supporting the slider between the slider and the guide, the guide being fixed close to the discharge part in the flow passage.

Here, the connecting means has an inlet for the fluid flow is formed on one side, the outlet is connected to the inlet by the flow passage is formed, the inlet and the outlet side is formed in the annular support jaw on the outer surface side, An annular groove is formed on an end side in contact with the supporting jaw, and a fixed jaw is formed in contact with the annular groove and facing the supporting jaw, and includes a valve body in which the opening and closing port is formed with a diameter smaller than the inlet while being close to the inlet.

In addition, the inlet and outlet sides of the valve body are fitted into the connection means, and insertion grooves into which both end portions of the valve body forming the inlet and the outlet are fitted are formed in the inner side, and correspond to the fixing jaw. The locking jaw caught by the fixing jaw is further included in the cap member formed on the inner peripheral surface of the insertion groove.

In addition, the connecting means is provided with a plurality of insertion plates to form a narrow diameter elastically inserted to be inserted into the inside of the cap member, connected to the vertical jaw and the vertical jaw caught on the inner end of the cap member and the cap An inclined surface that is easy to insert into the member is formed at the end of the insertion plate, and scales for allowing insertion of the tube tube to the inner surface of the insertion plate and preventing separation of the tube tube are inclined in the insertion direction of the tube tube. Fixing member is further included.

In addition, a plurality of openings and closing holes of the connecting means support the disk packings when the disk packings close the openings, thereby preventing the disk packings from being pushed into the openings, and allowing the flow of fluid through the openings and openings. Dog teeth are provided, and the outer surface portion of the opening and closing contact with the disk packing is formed in a plane.

The disc packing is formed of elastic rubber, and includes an insertion hole that is elastically opened when the slider is connected, and a connection portion having a circular groove connected to the insertion hole and having a diameter larger than that of the insertion hole, wherein the slider is formed of the disc packing. It may be provided with a disc that is elastically constrained to the circular groove through the insertion hole.

In this case, linear protrusions are formed on both sides of the horizontal band of the slider along the horizontal band, and a guide groove of the guide is provided with a linear groove allowing linear movement of the linear protrusion and restricting the rotation of the linear protrusion.

The guide includes a guide part in which the guide is formed and the guide part is fixedly coupled to a center of one side, and a cylindrical body having a flow hole for allowing the passage of fluid around the guide part. The flow path is gradually narrowed in the flow direction.

The check valve device according to the present invention configured as described above can be applied in a tube tube through which a fluid of low pressure flows due to a small opening pressure on the inlet through which the fluid passes, and has less wear on the packing for opening and closing of the inlet, A stable effect can be obtained.

Hereinafter, a preferred embodiment of the check valve device according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

In addition, the following examples are not intended to limit the scope of the present invention but merely presented by way of example, and there may be various embodiments implemented through the present invention.

Example

Figure 1 is a front view of the check valve device according to an embodiment of the present invention, Figure 2 is a longitudinal sectional view of Figure 1, Figure 3 is a valve body shown in Figure 2, Figure 4 is a valve body shown in Figure 3 5 is a disk packing shown in FIG. 2, FIG. 6 is a perspective view of the slider shown in FIG. 2, FIG. 7 is a perspective view of the guide shown in FIG. 2, and FIG. 8 is a left side view of FIG. 7. 9 is a longitudinal cross-sectional view of FIG. 7.

As shown in Figures 1 to 3, the check valve device according to an embodiment of the present invention is a connecting means 100, connecting means for connecting the tube pipe disposed on both sides and allow the flow direction of the fluid in one direction ( It includes a disk packing 160 for opening and closing the opening and closing (125) in the interior 100, the slider 170 and the guide 180 for linear movement of the disk packing 160.

Here, the connecting means 100 is provided with an inlet 110, the tube tube is inserted and fixed, the other tube tube is provided with a discharge portion 120 is inserted and fixed to the other side, the inlet 110 and discharge The flow passage 122 of the fluid connecting the portion 120 is formed therein, the inner diameter is formed narrower than the flow passage 122, and the opening and closing port disposed close to the inlet 110 in the flow passage 122 ( 125).

At this time, the disk packing 160 is a flat valve valve body that is moved linearly in the flow passage 122 of the connecting means 100 to open and close the opening and closing 125, the inlet 110 of the connecting means 100 When the fluid is introduced from the tube tube connected to the pressure of the fluid moves from the opening and closing port 125 to the outlet 120 side to open the opening and closing 125 to flow the fluid from the inlet 110 to the outlet 120 When the reverse pressure is applied to the fluid flow from the discharge portion 120 to the inlet portion 110 side close to the outside of the opening and closing port 125 by closing the opening and closing 125 to prevent the flow of the fluid through the connecting means 100 prevent.

Here, the disk packing 160 is formed in a flat plate perpendicular to the flow direction of the fluid to easily open the opening and closing port 125 by the pressure of the fluid applied to the opening and closing port 125, the disk through the opening and closing 125 The outer circumferential portion of the packing 160 may be elastically deformed to reduce the flow resistance of the fluid by easily bending the outer circumferential portion in the flow direction of the fluid due to the pressure of the fluid to flow to the outlet 120.

In addition, in order for the disk packing 160 to move in the flow passage 122 of the connecting means 100 to accurately open and close the opening and closing port 125, the disc packing 160 should be linearly reciprocated along the flow passage 122. The disc packing 160 may be connected to a slider 170 that can move linearly in the flow passage 122.

That is, the slider 170 is connected to the disc packing 160 to guide the linear movement of the disc packing 160, and the slider 170 contacts the inner wall of the flow passage 122 to provide a plurality of supports 171 for providing linear movement. It is provided with a horizontal stage 172 extending along the flow passage 122 in the support 171 and is constrained to move linearly to the following guide 180.

Therefore, the guide 180 should be formed with a guide 181 for restraining the horizontal guide 172 of the slider 170 is inserted and guided horizontally, close to the discharge portion 120 in the flow passage 122 By being fixed, the slider 170 may be linearly moved in the flow passage 122 on the inlet 110 side.

At this time, between the slider 170 and the guide 180, the disk packing 160 elastically supports the slider 170 when the disk packing 160 moves toward the discharge part 120 by the pressure of the fluid to open and close the disk packing 160. And a supporting means 190 capable of closing the opening and closing 125 by returning to the side), and the supporting means 190 may be a spring that can be restrained while being easily disposed between the slider 170 and the guide 180. Can be.

In more detail, the connecting means 100 has an inlet 131 through which the fluid is introduced, formed on one side, and an outlet 132 connected to the inlet 131 by the flow passage 122 is formed, and the inlet ( 131 and the outlet 132 is formed in the outer surface of the annular support jaw 133, the annular groove 134 is formed to the end side in contact with the support jaw 133, the annular groove 134 is in contact with the support jaw ( The fixing jaw 135 is formed to face the 133, and includes a valve body 130 having an opening and closing hole 125 formed in a diameter smaller than the inlet 131 while being close to the inlet 131.

In addition, the inlet 131 and the outlet 132 of the valve body 130 are fitted into the connecting means 100, and both end portions of the valve body 130 forming the inlet 131 and the outlet 132 are fitted therein. Insertion groove 141 that can be formed is formed on the inside, the cap member 140 formed on the inner circumferential surface of the insertion groove 141 is a locking jaw 142 that is caught on the fixing jaw 135 corresponding to the fixing jaw 135 Included.

Here, the left side of the support jaw 133 is formed as a vertical surface to stably support the right end of the cap member 140, the annular groove 134, both sides of the valve body 130 to the cap member 140 The locking jaw 142 is a portion where the locking jaw 142 is seated when fitted and fixed, and the fixing jaw 135 is a portion which prevents the locking jaw 142 seated in the annular groove 134 from escaping to the outside of the valve body 130. .

In addition, the connecting means 100 includes a plurality of insertion plates 151 which are formed to have a narrow diameter to be elastically inserted to be inserted into the cap member 140, and the vertical jaw caught on the inner end of the cap member 140. An inclined surface 151b connected to the 151a and the vertical jaw 151a and easily inserted into the cap member 140 is formed at the end of the insertion plate 151, and a tube is formed on the inner surface of the insertion plate 151. The fixing member 150 is formed to allow the insertion of the tube and prevent the separation of the tube tube. The scales 151c are inclined in the insertion direction of the tube tube.

At this time, the fixing member 150 is a tubular member for fixing the tube tube on both sides of the valve body 130 after being inserted along the inner peripheral surface of the cap member 140, the insertion plate 151 is the inside of the cap member 140 The inclined surface 151b formed in the insertion plate 151 is elastically narrowed when inserted into the side and allows easy sliding of the insertion plate 151 along the inner circumferential surface of the cap member 140, and the vertical jaw 151a. When the insertion plate 151 is completely inserted into the inside of the cap member 140 is caught by the inner end of the cap member 140 to prevent the separation.

In addition, the scales 151c formed on the insertion plate 151 are inclined in a direction to allow the insertion of the tube and a right angle is formed in the direction in which the tube is detached from the cap member 140. When pulled out, it supports the outer circumferential surface of the tube tube to prevent the tube tube from detaching.

Here, the inner side of the fixing member 150 is disposed close to the opening and closing port 125 side while the rubber O-ring 152 is disposed close to the inner circumferential wall of the valve body 130 is disposed close to the opening and closing hole (125) After being inserted into the 125 side, the fluid provided in the opening and closing port 125 is prevented from flowing out to the inlet 131 or the outlet 132 along the outer circumferential surface of the tube tube.

In addition, as shown in Figure 4, the opening and closing port 125 of the connecting means 100 supports the disk packing 160 when the disk packing 160 closes the opening and closing 125, so that the disk packing 160 opening and closing hole A plurality of support bars 136 are provided to block the inflow of the inside of the 125 and to allow the flow of the fluid through the opening and closing port 125, and the outer surface portion of the opening and closing port 125 to which the disk packing 160 contacts. Is formed into a plane.

And, as shown in Figure 5, the disk packing 160 is formed of a resilient rubber, connected to the insertion hole 161a and the insertion hole 161a that is elastically opened when the slider 170 is connected and the insertion hole 161a The disk 173 includes a connection portion 161 having a circular groove 161b having a larger diameter, and the slider 170 is elastically constrained to the circular groove 161b through the insertion hole 161a of the disc packing 160. It may be provided.

As illustrated in FIGS. 6 to 9, linear protrusions 172a are formed on both sides of the horizontal stage 172 of the slider 170 along the horizontal stage 172, and the guides 181 of the guide 180 are formed on the side surfaces of the slider 170. A linear groove 185 is formed to allow linear movement of the linear protrusion 172a and to restrict rotation of the linear protrusion 172a.

In addition, the guide 180 is fixed to the guide portion 182 and the guide portion 182 formed with the guide 181 is coupled to the center of one side, allowing the passage of fluid around the guide portion 182 It includes a cylindrical body 183 is formed, the circulation hole 184 is formed to gradually narrow the flow path in the flow direction of the fluid.

Here, the flow path shape formed in the distribution hole 184 of the guide 180 passes through the distribution hole 184 of the guide 180 after the disc packing 160 is opened to the outlet 132 side of the valve body 130. By increasing the flow velocity of the fluid to increase the dynamic pressure of the fluid to facilitate the flow of the fluid flow path, when the fluid flows back from the outlet 132 side to the inlet 131 side, the flow rate of the fluid is reduced to the disk packing 160 By preventing sudden application of dynamic pressure, the pressing force of the disc packing 160 toward the opening and closing port 125 side is prevented from increasing rapidly.

1 is a front view of a check valve device according to an embodiment of the present invention.

2 is a longitudinal cross-sectional view of FIG. 1.

3 is a valve body shown in FIG.

4 is a side view of the valve body shown in FIG.

5 is the disk packing shown in FIG.

6 is a perspective view of the slider shown in FIG. 2.

7 is a perspective view of the guide shown in FIG. 2.

8 is a left side view of FIG. 7.

9 is a longitudinal cross-sectional view of FIG. 7.

<Explanation of symbols on main parts of the drawings>

100: connecting means 110: inlet

120: discharge portion 122: flow passage

125: opening and closing 130: valve body

131: inlet 132: outlet

133: support jaw 134: annular groove

135: fixed jaw 136: support

140: cap member 141: insertion groove

142: locking step 150: fixing member

151: Insertion Plate 151a: Vertical Jaw

151b: slope 151c: scales

160: disk packing 161: connecting portion

161a: insertion hole 161b: circular groove

170: slider 171: support

172: horizontal band 172a: linear protrusion

173: disc 180: guide

181: guide 182: guide

183: cylinder 184: distributor

185: straight groove 190: support means

Claims (8)

An inlet portion into which the tube tube is inserted and fixed and an outlet portion into which the other tube tube is inserted and fixed to the other side, and a flow passage of the fluid connecting the inlet portion and the discharge portion is formed therein, and has an inner diameter greater than that of the flow passage. A narrow opening and closing port formed on one side of the flow passage; A flat disk packing which is linearly moved in the flow passage of the connecting means to open and close the opening and closing port; A plurality of supports connected to the disk packing to guide the linear movement of the disk packing and contacting the inner wall of the flow passage to provide linear movement, the horizontal support extending from the support along the flow passage; One slider; A guide that is inserted into the horizontal band of the slider to be guided to be horizontally guided and is fixed to the discharge part in the flow passage; And Support means for elastically supporting the slider between the slider and the guide, The connecting means has an inlet through which fluid is introduced, formed on one side, and an outlet opening connected to the inlet by the flow passage is formed, and an annular support jaw is formed on the inlet and the outlet side outer surface, and the support jaw An annular groove is formed at an end side in contact with the annular groove, and a fixed jaw is formed in contact with the annular groove and facing the support jaw, and includes a valve body in which the opening and closing port is formed with a diameter smaller than the inlet while being close to the inlet. The inlet and outlet sides of the valve body are fitted into the connecting means, and insertion grooves into which both end portions of the valve body forming the inlet and the outlet port can be fitted are formed on the inner side thereof, and the counterparts correspond to the fixing jaw. Check valve device characterized in that it further comprises a cap member formed on the inner circumferential surface of the insertion groove caught in the fixing jaw. delete delete The method of claim 1, The connecting means includes a plurality of insertion plates that are formed to have a narrow diameter to be elastically inserted into the cap member and are inserted into the vertical jaw caught by the inner end of the cap member and the vertical jaw and are connected to the cap. An inclined surface that is easily inserted inwardly is formed at an end of the insertion plate, and a fixing member formed with an inner surface of the insertion plate inclined in an insertion direction of the tube tube with scales allowing insertion of the tube tube and preventing separation of the tube tube. Check valve device characterized in that it further comprises. The method of claim 1, The opening and closing opening of the connecting means supports the disk packing when the disk packing closes the opening and closing to prevent the disk packing from being pushed into the opening and closing, a plurality of supports to allow the flow of fluid through the opening and closing The check valve device, characterized in that the flesh is provided, the outer surface portion of the opening and closing the contact with the disk packing is formed in a plane. The method of claim 1, The disc packing is formed of a resilient rubber, and includes an insertion opening that is elastically opened when the slider is connected and a connection portion formed with a circular groove connected to the insertion opening and having a diameter larger than that of the insertion opening, and the slider is provided with an insertion opening of the disc packing. Check valve device characterized in that it comprises a disc that is elastically constrained to the circular groove through. The method of claim 1, Linear protrusions are formed on both sides of the horizontal band of the slider along the horizontal band, and a guide groove of the guide is formed with a linear groove allowing linear movement of the linear protrusion and restricting rotation of the linear protrusion. Check valve device. The method of claim 1, The guide is a guide portion formed with the guide and the guide portion is fixed to the center coupled to one side, and includes a cylindrical body formed with a distribution hole to allow the passage of fluid around the guide portion, The distribution hole is a check valve device characterized in that the flow path is gradually narrowed in the flow direction of the fluid.

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