KR20150108585A - Connector - Google Patents

Abstract

Disclosed is a connector. According to an embodiment of the present invention, the connector comprises a body where a flow path, which includes an inlet and an outlet, is provided, and a back flow preventing part provided on a flow path to keep liquid from flowing back from the outlet to the inlet. In addition, the back flow preventing part may comprise a bladder member which opens and closes the flow path by pressure and buoyancy generated by the liquid flowing through the flow path.

Description

Connector {CONNECTOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector used for connecting a device such as a flow pipe, a flow pipe, a flow pipe, and a storage tank, or a storage tank, To a connector capable of preventing backflow without an elastic member of the connector.

The connector is used to connect a device such as a flow tube and a flow tube, a device such as a flow tube and a storage tank, or a storage tank or the like so that liquid can flow.

Such a connector may be an L-shaped connector, a T-shaped connector, or a U-shaped connector depending on its shape.

On the other hand, the connector is provided with a check valve separately or a configuration serving as a check valve, so that the liquid can be prevented from flowing backward in the direction opposite to the normal flow direction of the liquid.

As described above, the structure serving as a check valve or a check valve provided in the connector for preventing backflow includes an opening / closing hole, an opening / closing member for opening / closing the opening / closing hole, and an elastic member such as a coil spring for elastically supporting the opening / closing member do.

With this configuration, when the liquid flows in the normal flow direction, the opening / closing member overcomes the elastic force of the elastic member by the force of the pressure of the liquid and moves in the direction of opening the opening / closing hole. As a result, the liquid flows through the connector and flows in the normal flow direction.

Further, when the liquid flows backward in the direction opposite to the steady flow direction, the opening and closing member moves in the closing direction of the opening and closing hole by the force of the pressure of the liquid and the elastic force of the elastic member. As a result, the liquid can not pass through the connector and can not flow backward.

In the conventional connector capable of preventing the backflow of such a configuration, a force larger than the elastic force of the elastic member must be applied to the opening and closing member as described above, so that the liquid flows in the normal flow direction through the connector.

Therefore, even when the liquid flows into the connector in the normal flow direction, the conventional connector fails to flow in the normal flow direction through the connector when the force by the pressure of the liquid is smaller than the elastic force of the elastic member.

On the other hand, when the liquid is caused to flow from one storage tank to another storage tank by the water level difference, the inflow pressure of the liquid is relatively low. Therefore, in such a case, when a conventional connector is used, liquid may not flow from one storage tank to another storage tank even if there is a water level difference between the storage tanks.

And, liquid has flowed from one storage tank to another storage tank through the connector only when there is a relatively large predetermined water level difference between the storage tanks. Thus, there was always a relatively large predetermined water level difference when moving from one storage tank to another through a connector.

In addition, since the conventional connector capable of preventing the backflow includes the elastic member such as the coil spring as described above, the manufacturing cost is relatively large.

The present invention is realized by recognizing at least any one of the requirements or problems occurring in the conventional connector as described above.

One aspect of the object of the present invention is to provide a connector capable of preventing reverse flow even though it does not include an elastic member such as a coil spring.

Another aspect of the object of the present invention is to reduce the manufacturing cost of a connector capable of preventing backflow.

Another aspect of the object of the present invention is to facilitate the flow of the liquid in the steady flow direction through the connector capable of preventing the backflow even if the flow pressure of the liquid is small.

Another object of the present invention is to provide a connector capable of preventing the flow of liquid from one storage tank to another storage tank even if the difference in water level between the storage tanks is small when a liquid flows from one storage tank to another storage tank, .

A connector according to one embodiment for realizing at least one of the above-mentioned problems may include the following features.

According to an aspect of the present invention, there is provided a connector comprising: a body having a flow path including an inlet and an outlet; And a backflow preventing portion provided in the flow passage and preventing backflow of the liquid from the outlet to the inlet. The backflow preventing portion may include a baffle member that opens and closes the flow passage by the pressure and buoyancy of the liquid flowing through the flow passage.

In this case, the inside of the boom member may be hollow.

Further, the flow path may be provided with an opening / closing part having an opening / closing hole having a size smaller than the maximum cross section of the boom member.

In addition, the flow path spaced a predetermined distance from the opening / closing part may be provided with a latching part including a latching part for latching the lever.

Further, at least a part of the brace member may be located between the opening and closing hole and the engaging jaw.

The backflow prevention portion may further include a ring-shaped sealing member provided around the opening and closing hole and having an inner diameter smaller than the inner diameter of the opening and closing hole.

Further, an installation groove having a sealing member may be formed at the opening / closing portion around the opening / closing hole.

The portion of the breech element on the inlet side is round and can be positioned protruding from the opening / closing hole toward the inlet side.

Further, the backflow prevention portion may further include a pressing member for pressing the sealing member such that the sealing member does not come off.

The pressing member may include an insertion portion into which the inlet side body is inserted, and a pressing portion formed with a first communication hole communicating with the opening and closing hole and pressing the sealing member.

Further, the pressing member may be provided with a fitting protrusion in which a sealing connecting member having a second communication hole communicating with the first communication hole is inserted.

The backflow prevention portion may be provided in the flow path on the inlet side.

Also, the inlet may be located higher than the outlet.

As described above, according to the embodiment of the present invention, it is possible to provide a connector capable of preventing reverse flow even if it does not include an elastic member such as a coil spring by using a bush member that can easily act.

Further, according to the embodiment of the present invention, the manufacturing cost of the connector capable of preventing the backflow can be reduced.

In addition, according to the embodiment of the present invention, even if the flow pressure of the liquid is small, the flow of the liquid in the normal flow direction through the connector capable of preventing the backflow can be facilitated.

In addition, according to the embodiment of the present invention, even if the difference in the water level between the storage tanks when a liquid flows from one storage tank to another storage tank is small by using a connector capable of preventing backflow, .

1 is an exploded perspective view of an embodiment of a connector according to the present invention.
2 is a perspective view of one embodiment of a connector according to the present invention.
Figs. 3 and 4 show the operation of an embodiment of the connector according to the invention in a cross-sectional view taken along the line A-A 'in Fig.
5 is an exploded perspective view of a connector according to an embodiment of the present invention.

In order to facilitate understanding of the features of the present invention, a connector according to an embodiment of the present invention will be described in detail.

Hereinafter, exemplary embodiments will be described based on embodiments best suited for understanding the technical characteristics of the present invention, and the technical features of the present invention are not limited by the illustrated embodiments, It is to be understood that the present invention may be implemented as illustrated embodiments. Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. In order to facilitate understanding of the embodiments to be described below, in the reference numerals shown in the accompanying drawings, among the constituent elements which perform the same function in each embodiment, the related constituent elements are indicated by the same or an extension line number.

FIG. 1 is an exploded perspective view of an embodiment of a connector according to the present invention, and FIG. 2 is a perspective view of an embodiment of a connector according to the present invention. Figs. 3 and 4 show the operation of an embodiment of the connector according to the invention in a cross-sectional view taken along the line A-A 'in Fig. 5 is an exploded perspective view of an embodiment of the connector according to the present invention and its enlarged cross-sectional view.

One embodiment of the connector 100 according to the present invention may include the body 200 and the backflow prevention part 300 as shown in FIGS.

The body 200 may include a flow path 210 including an inlet 211 and an outlet 212. 3, liquid such as water flows into the body 200 through the inlet 211 and flows through the channel 210 of the body 200 and then flows through the outlet 212 to the body 200 ). ≪ / RTI >

1, the shape of the body 200 is such that an imaginary line (not shown) from the center of the inlet 211 and an imaginary line (not shown) from the center of the outlet 212 form a predetermined angle Or the like. That is, the shape of the body 200 may be such that the liquid flowing into the body 200 may flow out of the body 200 by changing the direction of the flow.

However, the shape of the body 200 is not particularly limited, and any shape can be used as long as the liquid can flow, such as a straight line, a U-line, or a T-line.

As shown in FIGS. 3 and 4, the flow path 210 of the body 200 may include an opening / closing part 220. The opening and closing part 220 may be provided in the inlet 211 side flow path 210 as shown in FIG. However, the position where the opening and closing part 220 is provided in the flow path 210 of the body 200 is not particularly limited and may be provided at any position of the flow path 210.

An opening / closing hole 221 may be formed in the opening and closing part 220. The size of the opening / closing hole 221 may be equal to or less than a maximum cross-section of a bobbin member 310 included in the backflow prevention part 300, which will be described later. Accordingly, as shown in FIGS. 3 and 4, the opening / closing hole 221 can be opened and closed by the bobbin member 310.

3 and 4, the flow path 210, which is spaced a predetermined distance from the opening / closing part 220 to the outlet 212, may include a latching part 230 including a latching protrusion 231. 3, when the boom member 310 moves toward the outlet 212 due to the pressure of the liquid flowing into the inlet 211, the boom member 310 moves a predetermined distance The bobbin member 310 is caught by the latching jaw 231 of the latching part 230 and can not move any more. As a result, the bobbin member 310 can not be detached from the body 200.

The latching part 230 may further include a guide part 232 as shown in FIGS. The movement of the bail member 310 is guided by the guide portion 232 of the engaging portion 230.

The mounting groove 222 may be formed in the opening / closing part 220 around the opening / closing hole 221. The mounting groove 222 is provided with a sealing member 320, which will be described later, included in the backflow prevention portion 300.

The inlet 211 of the flow path 210 formed in the body 200 may be positioned higher than the outlet 212. As a result, the liquid flows from above the body 200 as shown in FIG. 3 and flows downward.

However, the relative positions of the inlet 211 and the outlet 212 are not particularly limited, and the relative positions of the inlet 211 and the outlet 212 are not particularly limited. Location is possible.

The body 200 may have a connection protrusion 213 formed thereon. For example, the connection protrusion 213 may be formed in the body 200 on the inlet 211 side as shown in FIG. However, the position at which the coupling protrusion 213 is formed is not particularly limited, and may be formed at any position of the body 200. [

The connection protrusion 213 of the body 200 is fitted with a connection hole 334 formed in the pressing member 330 which will be described later and included in the backflow prevention part 300 as shown in FIG. As a result, the pressing member 330 can be easily provided to the body 200 as shown in FIG.

The backflow prevention part 300 may be provided in the flow path 210 of the body 200 described above. The backflow prevention unit 300 prevents backflow of the liquid from the outlet 212 to the inlet 211.

As shown in FIGS. 3 and 4, the backflow prevention part 300 may be provided in the flow path 210 on the inlet 211 side. However, the position of the backflow prevention part 300 in the flow path 210 is not particularly limited, and may be set at any position of the flow path 210, such as the flow path 210 at the center of the flow path 210, .

In order to prevent the backflow, the backflow prevention portion 300 may include the baffle member 310. The baffle member 310 can open and close the flow path 210 by the pressure and buoyancy of the liquid flowing through the flow path 210.

That is, when a force due to the pressure of the liquid acts in the direction of the outlet 212 from the inlet 211 due to a cause such as the liquid flowing into the inlet 211 of the body 200, And moves to the side 212 to open the opening / closing hole 221 as shown in FIG.

In this case, since the baffle member 310 for opening and closing the flow path 210 is not resiliently supported by an elastic member (not shown) such as a coil spring as in the prior art, the baffle member 310 can be easily 200 to the outlet 212 side. For example, if the force due to the pressure of the liquid is larger than the weight of the boom member 310 or the frictional force thereof, the boom member 310 can easily move toward the outlet 212 of the body 200.

As shown in FIGS. 3 and 4, the inside of the boom member 310 may be hollow or may be made of a relatively lightweight material such as styrofoam to easily move by buoyancy. Accordingly, the breech member 310 can be easily moved toward the outlet 212 side by this.

In particular, if the inlet 211 is positioned higher than the outlet 212, the force from the inlet 211 to the outlet 212, if the force in the opposite direction to the weight of the boom member 310 does not act on the boom member 310, Even if a force due to the pressure of the liquid does not act on the bobbin member 310, the bobbin member 310 moves toward the outlet 212 by its weight as shown in Fig. 5, 231).

That is, in this case, if the force in the direction opposite to the weight of the bobbin member 310 does not act on the bobbin member 310, the bobbin member 310 is moved to the position where the opening / closing hole 221 is opened do.

Since the bore member 310 can be easily moved toward the outlet 212 of the body 200 to open the opening and closing hole 221, the steady flow of liquid from the inlet 211 to the outlet 212 Flow can be made easier.

A force due to the pressure of the liquid is applied to the body 200 due to a cause such that the pressure on the side of the inlet 211 of the body 200 becomes lower than the pressure on the side of the outlet 212, When the buoyancy member 310 acts on the breech member 310 in the direction of the inlet 211 from the outlet 212 of the bore member 310 or the buoyancy acts on the breeze member 310, The opening / closing hole 221 is closed.

In order to allow the breech member 310 to be easily moved by the buoyancy force, the breech member 310 may be hollow inside as shown in Figs. 3 and 4. However, if the breech member 310 can be easily moved by buoyancy, the breech member 310 may be made of any structure, material, or shape such as a styrofoam or the like which is a relatively lightweight material.

At least a part of such a bobbin member 310 may be located between the opening / closing hole 221 and the engaging jaw 231. [ Thus, the bobbin member 310 is not released to the outside, but moves between the open / close hole 221 and the stop 231 to open / close the open / close hole 221.

3 and 4 and will be described later, a part of the bobbin member 310 is positioned between the opening and closing hole 221 and the engaging jaw 231, and the remaining portion of the bobbin member 310 is separated from the opening and closing hole 221 And can be positioned to protrude.

However, all the parts of the breech member 310 are located between the opening and closing holes 221 and 231 and the breech member 310 moves between the opening and closing holes 221 and 231, 221 may be opened or closed.

As shown in FIG. 1, the backflow prevention part 300 may further include a ring-shaped sealing member 320.

The sealing member 320 may be provided around the opening / closing hole 221. 3 and 4, an installation groove 222 is formed in the opening and closing part 220 around the opening and closing hole 221 and a sealing member 320 is provided in the installation groove 222 of the opening and closing part 220 . However, in addition, a mounting groove may be formed in the pressing portion 332 of the pressing member 320 to be described later, and the sealing member 320 may be provided in the mounting groove of the pressing portion 332. [

The sealing member 320 may have an inner diameter smaller than the inner diameter of the opening / closing hole 221. [ Further, the sealing member 320 may be made of a material having high elasticity such as rubber. As shown in FIGS. 1, 3 and 4, the portion of the bore member 310 on the side of the inlet 211 is round and may protrude from the opening / closing hole 221 toward the inlet 211 side.

4, when the opening / closing hole 221 is closed by the bobbin member 310, the rounded portion of the bobbin member 310 contacts the sealing member 320 earlier than the other portion, 320 can easily be elastically deformed. The sealing member 320 is brought into close contact with the bobbin member 310 by the elastic force of the sealing member 320 so that the bobbin member 310 and the sealing member 320 seal the opening and closing hole 221.

The backflow prevention part 300 may further include a pressing member 330 as shown in FIGS. The pressing member 330 can press the sealing member 320 so that the sealing member 320 does not come off. The pressing member 330 may include an insertion portion 331 and a pressing portion 332.

The body 200 on the inlet 211 side can be inserted into the insertion portion 331 of the pressing member 330. [ Accordingly, the pressing member 330 may be provided on the body 200 on the inlet 211 side.

For this purpose, the insertion portion 331 of the pressing member 330 may have a shape corresponding to the body 200 on the inlet 211 side. For example, as shown in FIG. 1, the body 200 on the inlet 211 side may have a tubular shape, and the insertion portion 331 of the pressing member 330 may be a tubular groove.

However, the shape of the insertion portion 331 of the pressing member 330 is not particularly limited, and any shape can be used as long as it corresponds to the body 200 on the inlet 211 side.

The pressing member 330 may be formed with a connecting hole 334 as shown in FIG. A guide groove 335 extending from the connection hole 334 may be formed in the pressing member 330.

Thereby, after the pressing member 330 is positioned so that the coupling protrusion 213 of the body 200 is inserted into the guide groove 335 of the pressing member 330, the pressing member 330 is rotated, The coupling protrusion 213 of the body 200 can be fitted into the coupling hole 334 of the pressing member 330 as shown in FIG. Accordingly, the pressing member 330 can be easily and firmly attached to the body 200 on the inlet 211 side.

The pressurizing portion 332 may be provided with a first communication hole 332a communicating with the opening / closing hole 221. Then, the pressing portion 332 can press the sealing member 320. The pressing portion 332 may be located inside the insertion portion 331 described above.

3 and 4, the first communication hole 332a becomes narrower toward the outlet 212 side of the body 200, and then reaches the sealing member 320 to pressurize the sealing member 320 It may be a shape that widens again. However, the shape of the first communication hole 332a of the pressing portion 332 is not particularly limited, and any shape can be used.

The sealing member 320 is pressed by the pressing portion 332 and does not come off from the mounting groove 222 of the opening / closing portion 220 at the predetermined position.

The pressing member 330 may also be provided with a fitting protrusion 333. The fitting protrusion 333 may be, for example, a tubular shape as shown in Fig. As shown in FIG. 5, the seal connecting member 400 can be fitted to the fitting protrusion 333.

For this purpose, the seal connecting member 400 may be provided with a fitting groove 420 having a shape corresponding to the fitting protrusion 333, for example, a fitting groove 420 having a tubular groove. The seal connecting member 400 may be formed with a second communication hole 410 communicating with the first communication hole 332a of the pressing member 330. [

5, a tubular member such as the connection portion C of the purified water tank WT is connected to the second communication hole 410 of the sealing connection member 400 by the sealing connection member 400, And can be connected to the first communication hole 332a of the pressing member 330 so as to be hermetically sealed.

As described above, according to the embodiment of the connector 100 according to the present invention, since the reverse flow can be prevented without using the elastic member such as the coil spring, the manufacturing cost of the connector capable of preventing the reverse flow can be reduced.

5, the water stored in the purified water tank WT is connected to the hot water tank HT by connecting the purified water tank WT and the hot water tank HT, And stored.

The connecting portion C of the purified water tank WT is inserted into the second communication hole 410 formed in the sealing connecting member 400 of the embodiment of the connector 100 according to the present invention, One embodiment of connector 100 according to the present invention may be connected to purified water tank WT. In addition, as shown, the outlet body 212 side body 200 of one embodiment of the connector 100 according to the present invention may be connected to another connector 500 connected to the hot water tank HT. Accordingly, the purified water WT and the hot water tank HT are connected to allow the liquid to flow.

In this case, one embodiment of the connector 100 according to the present invention, as shown in FIG. 5, is positioned such that the inlet 211 is higher than the outlet 212. Therefore, when the hot water tank HT is free of water, the bracket member 310 of the embodiment of the connector 100 according to the present invention is caught by the engagement jaw 231 as shown in Fig. 3 by its weight Position.

Thereby, the opening / closing hole 221 in one embodiment of the connector 100 according to the present invention is opened, and the liquid stored in the water tank HT, that is, the water, forms an embodiment of the connector 100 according to the present invention. Passes through the hot water tank HT, and is stored in the hot water tank HT.

When the water level of the purified water tank WT is higher than the water level of the hot water tank HT, the water level of the water in the water tank TT is increased by the force of the water pressure in accordance with the water level difference in the embodiment of the connector 100 according to the present invention. , It is in a position as shown in Fig. Accordingly, the water stored in the purified water tank WT easily flows to the hot water tank HT and is stored in the hot water tank HT.

When the water level of the hot water tank HT becomes high and water reaches the boom member 310, buoyancy acts on the boom member 310. In this state, the force due to the pressure of the water acting on the boom member 310 on the side of the inlet 211 becomes larger than the buoyancy acting on the boom member 310 and the water force acting on the boom member 310 on the outlet 212 side When the force due to the pressure is larger than the force due to the pressure, the boom member 310 is in the position shown in Fig. 3 in which the opening and closing hole 211 is opened. Therefore, the water stored in the purified water tank WT easily flows to the hot water tank HT and is stored in the hot water tank HT.

Thus, when the water in the purified water tank WT flows into the hot water tank HT, it is not necessary to overcome the elastic force of the elastic member such as the coil spring, so that the water level difference between the purified water tank WT and the hot water tank HT Even if it is relatively small, the water stored in the purified water tank WT can easily flow into the hot water tank HT. When the water flows from the purified water tank WT to the hot water tank HT, the water level difference between the purified water tank WT and the hot water tank HT can be made relatively small.

On the other hand, the force due to the pressure of the water acting on the bore member 310 on the side of the inlet 211 is larger than the buoyancy acting on the breech member 310 and the pressure of the water acting on the bore member 310 on the side of the outlet 212 The bore member 310 moves to the position where the opening / closing hole 211 shown in Fig. 4 is closed. Accordingly, the water can not flow from the purified water tank WT to the hot water tank HT and can not flow back from the hot water tank HT to the purified water tank WT.

For example, when the water level of the purified water tank WT is lower than the water level of the hot water tank HT due to the discharge of water from the purified water tank WT, the buoyancy acting on the boom member 310, The force due to the pressure of the water acting on the member 310 is greater than the force due to the pressure of the water acting on the bore member 310 at the inlet 211 side. 4, the water in the hot water tank HT is prevented from flowing back to the purified water tank WT.

An embodiment of the connector 100 according to the present invention may be applied to a case where water is used to flow from the purified water tank WT to the hot water tank HT by connecting the purified water tank WT and the hot water tank HT An embodiment of the connector 100 according to the present invention may be used in addition to connecting a flow pipe with a flow pipe, connecting a device such as a flow pipe and a storage tank, connecting a device such as a storage tank, etc. .

INDUSTRIAL APPLICABILITY As described above, the connector according to the present invention can provide a connector that can prevent reverse flow even if the elastic member such as a coil spring is not included by using a bush member that can easily act buoyancy. The manufacturing cost of the connector can be reduced.

Further, even if the flow pressure of the liquid is low, it is possible to easily flow the liquid in the normal flow direction through the connector capable of preventing the backflow, and to prevent the backflow from flowing from one storage tank to another storage tank The liquid can easily flow from one storage tank to another storage tank even if the difference in the water level between the storage tanks is small.

100: connector 200: body
210: Euro 211: Entrance
212: outlet 213: connecting projection
220: opening and closing part 221: opening and closing hole
222: installation groove 230:
231: locking jaw 232: guide portion
300: backflow prevention part 310:
320: sealing member 330: pressing member
331: inserting portion 332: pressing portion
332a: first communication hole 333:
334: connection hole 335: guide groove
400: sealing connecting member 410: second communicating hole
420: fitting groove 500: other connector
WT: Water tank HT: Hot water tank
C: Connection

Claims (13)

A body having a flow path including an inlet and an outlet;
And a backflow prevention portion provided in the flow passage and preventing backflow of the liquid from the outlet to the inlet,
And the backflow prevention portion includes a bush member that opens and closes the flow path by the pressure and buoyancy of the liquid flowing through the flow path. The connector according to claim 1, wherein the bracket member is hollow inside. The connector according to claim 1, wherein the flow path is provided with an opening / closing part having an opening / closing hole having a size smaller than a maximum cross section of the boom member. 4. The connector according to claim 3, wherein the flow path, which is a predetermined distance from the opening and closing part, is provided with a latching part including a latching part for latching the braking member. The connector according to claim 4, wherein at least a part of the bracket member is positioned between the opening and closing hole and the engagement jaw. The connector according to claim 3, wherein the backflow prevention portion further comprises a ring-shaped sealing member provided around the opening and closing hole and having an inner diameter smaller than the inner diameter of the opening and closing hole. 7. The connector according to claim 6, wherein the opening and closing portion around the opening and closing hole has an installation groove provided with the sealing member. The connector according to claim 6, wherein the portion of the baffle member on the inlet side is round and protrudes from the opening / closing hole to the inlet side. 7. The connector according to claim 6, wherein the backflow prevention portion further comprises a pressing member for pressing the sealing member so that the sealing member does not come off. The connector according to claim 9, wherein the pressing member includes an insertion portion into which the inlet side body is inserted, and a pressing portion formed with a first communication hole communicating with the opening / closing hole and pressing the sealing member. The connector according to claim 10, wherein the pressing member is provided with a fitting protrusion for fitting a sealing connection member formed with a second communication hole communicating with the first communication hole. The connector according to claim 1, wherein the backflow prevention portion is provided in the flow path on the inlet side. 2. The connector of claim 1, wherein the inlet is located higher than the outlet.

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