KR101598560B1 - Valve assembly - Google Patents

Abstract

The present invention relates to a valve assembly, comprising: a main body having a transfer path for transferring a fluid; A discharge port connected to the transfer path to discharge the fluid to the outside; An open / close valve which is in contact with the discharge port to close the discharge port or to open the discharge port apart from the discharge port; And a transfer unit for reciprocatingly transferring the open / close valve so as to be in contact with or spaced from the discharge port; Wherein the opening / closing valve contacts the discharge port to seal the discharge port, and when the discharge port contacts the discharge port, the foreign matter contained in the fluid is interposed between the opening / closing valve and the discharge port, / Cut section.
Accordingly, the present invention provides a cut-off valve which is made of a solid or viscous liquid and is capable of cutting a foreign substance contained in the fluid, is provided on the on-off valve, and is provided between the outlet of the valve assembly and the on- It is possible to provide a valve assembly capable of preventing a gap in which foreign matter is caught from being leaked and capable of being used for a fluid containing a large amount of foreign matter.

Description

[0001] Valve assembly [0002]

The present invention relates to a selectively openable and closable valve assembly for transferring fluids.

The valve assembly is an apparatus for controlling the flow of a fluid, and can selectively control the flow of the fluid by selectively opening and closing the flow path for transferring the fluid. To this end, the conventional valve assembly includes an on-off valve selectively opening and closing the flow path while being reciprocated so as to be in contact with or spaced from the flow path, and a ball valve capable of selectively opening and closing the flow path while being rotated.

However, when using a conventional valve assembly to open and close a flow path through which a large amount of foreign matter made of a solid or viscous liquid, for example, a fluid containing a large amount of sludge, flows through the flow path, And a clearance that can leak the fluid occurs frequently. Therefore, the conventional valve assembly has a problem in that it is unsuitable for a fluid containing a large amount of foreign matter made of solid or viscous liquid.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a valve assembly that is improved in structure for use with a fluid containing a large amount of foreign matter made of solid or viscous liquid.

According to an aspect of the present invention, there is provided a valve assembly comprising: a main body having a transfer path for transferring a fluid; A discharge port connected to the transfer path to discharge the fluid to the outside; An on-off valve which is in contact with the discharge port to seal the discharge port or to separate the discharge port from the discharge port; And a transfer unit for reciprocatingly transferring the open / close valve so as to be in contact with or spaced from the discharge port; The on / off valve includes a contact / cut-off portion which contacts the discharge port to seal the discharge port, and contacts the discharge port while cutting the foreign substance so that foreign matter contained in the fluid is not caught between the opening and closing valve and the discharge port when the discharge port is contacted .

Preferably, the contact / cut portion includes at least one contact / cutting projection which is protruded from the opening / closing valve, is in line contact with the outlet port to seal the outlet port, and is in line contact with the outlet port .

Preferably, the contact / cut portion includes a contact surface for sealing the discharge port in contact with the discharge port, and at least one cutting groove formed at a predetermined depth in the contact surface to cut the foreign material when the contact surface is brought into contact with the discharge port.

According to another aspect of the present invention, there is provided a valve assembly including: a main body having a first flow path and a second flow path for transferring fluid; A communication hole connecting the first flow path and the first flow path; An opening / closing valve which is in contact with the communication hole to close the communication hole or to open the communication hole apart from the communication hole; And a transfer unit for reciprocatingly transferring the open / close valve in contact with or spaced from the communication hole; The on-off valve includes a contact / cut-off portion that contacts the communication hole to seal the communication hole, and contacts the communication hole while cutting the foreign matter between the opening-closing valve and the communication hole so as to prevent foreign substances contained in the fluid from being caught between the opening- .

Preferably, the contact / cut-out portion protrudes from the open / close valve and is in line contact with the communication hole to seal the communication hole, and at least one contact / And protrusions.

Preferably, the contact / cut portion includes a contact surface contacting the communication hole to seal the communication hole, and at least one cutting groove formed at a predetermined depth in the contact surface to cut foreign matter when the contact surface contacts the communication hole .

According to another aspect of the present invention, there is provided a valve assembly including: a main body having a first flow path and a second flow path for transferring a fluid; A ball valve rotatably installed between the first and second flow paths and selectively connecting or disconnecting the first flow path and the second flow path while being rotated; A rotating unit for rotating the ball valve; A sealing member installed to be in contact with the ball valve and sealing the ball valve; And a cut portion for cutting the foreign matter between the ball valve and the sealing member so that the foreign matter contained in the fluid is not caught between the ball valve and the sealing member when the ball valve is rotated.

Preferably, the cutout portion is formed at a predetermined depth on a contact surface of the ball valve in contact with the sealing member, and includes at least one first cutoff groove for cutting the foreign material when the ball valve is rotated.

Preferably, the cut portion is formed at a predetermined depth on the contact surface of the sealing member in contact with the ball valve, and includes at least one second cut groove for cutting the foreign material when the ball valve is rotated.

Preferably, the cut-out portion includes a sealing / cutting protrusion formed protruding from the sealing member and in line contact with the ball valve to seal the ball valve, and to cut off the foreign material when the ball valve is rotated.

According to another aspect of the present invention, there is provided a valve assembly including: a main body having a transfer path for transferring a fluid; A discharge port connected to the transfer path to discharge the fluid to the outside; An opening / closing valve which can be in contact with the discharge port to seal the discharge port or to open the discharge port apart from the discharge port; And a transfer unit for reciprocatingly transferring the open / close valve so as to be in contact with or spaced from the discharge port; The on / off valve includes a contact / cut-off portion which contacts the discharge port to seal the discharge port, and contacts the discharge port while cutting the foreign substance so that foreign matter contained in the fluid is not caught between the opening and closing valve and the discharge port when the discharge port is contacted .

Preferably, the contact / cut portion includes at least one contact / cutting projection which is formed to protrude toward the discharge port, is in line contact with the discharge port to seal the discharge port, and is in line contact with the discharge port while cutting the foreign substance when in line contact with the discharge port .

Preferably, the contact / cut portion includes a contact surface for sealing the discharge port in contact with the discharge port, and at least one cutting groove formed at a predetermined depth in the contact surface to cut the foreign material when the contact surface is brought into contact with the discharge port.

According to another aspect of the present invention, there is provided a valve assembly including: a main body having a first flow path and a second flow path for transferring fluid; A communication hole communicating the first flow path and the first flow path; An on-off valve which is brought into contact with the communication hole to close the communication hole or to open the communication hole apart from the communication hole; And a transfer unit for reciprocatingly transferring the open / close valve in contact with or spaced from the communication hole; The on-off valve includes a contact / cut-off portion that contacts the communication hole to seal the communication hole, and contacts the communication hole while cutting the foreign matter between the opening-closing valve and the communication hole so as to prevent foreign substances contained in the fluid from being caught between the opening- .

Preferably, the contact / cut-out portion protrudes from the open / close valve and is in line contact with the communication hole to seal the communication hole, and at least one contact / And protrusions.

Preferably, the contact / cut portion includes a contact surface contacting the communication hole to seal the communication hole, and at least one cutting groove formed at a predetermined depth in the contact surface to cut foreign matter when the contact surface contacts the communication hole .

According to another aspect of the present invention, there is provided a valve assembly including: a main body having a first flow path and a second flow path for transferring a fluid; A ball valve rotatably installed between the first flow path and the second flow path and capable of selectively connecting or disconnecting the first flow path and the second flow path while being rotated; A rotating unit for rotating the ball valve; A sealing member installed to be in contact with the ball valve and sealing the ball valve; And a cutting portion capable of cutting the foreign material when the ball valve is rotated such that the foreign matter contained in the fluid is not caught between the ball valve and the sealing member.

Preferably, the cutout portion is formed at a predetermined depth on a contact surface of the ball valve in contact with the sealing member, and includes at least one first cutoff groove capable of cutting foreign matter when the ball valve is rotated.

Preferably, the cut portion is formed at a predetermined depth on the contact surface of the sealing member in contact with the ball valve, and includes at least one second cut groove capable of cutting foreign matter when the ball valve is rotated.

According to another aspect of the present invention, there is provided a valve assembly including: a main body having a first flow path and a second flow path for transferring a fluid; A ball valve rotatably installed between the first and second flow paths and selectively connecting or disconnecting the first flow path and the second flow path while being rotated; A rotating unit for rotating the ball valve; A sealing member installed to be in contact with the ball valve and sealing the ball valve; The sealing member protrudes toward the ball valve, is in line contact with the ball valve to seal the ball valve, and can cut the foreign material when the ball valve is rotated so that the foreign substance contained in the fluid is not caught between the ball valve and the sealing member And at least one sealing / cutting protrusion provided on the base.

According to another aspect of the present invention, there is provided a valve assembly including: a main body having a transfer path for transferring a fluid; A discharge port that receives the fluid from the transfer path and discharges the fluid to the outside; A guide hole provided between the transfer path and the discharge port for connecting the transfer path to the discharge port; An open / close valve which is slidably installed in the guide hole and is in contact with the guide hole to seal between the transfer passage and the discharge port or to be released from contact with the guide hole to open the transfer passage and the discharge port; And a cylinder unit having a cylinder rod that reciprocates the piston rod so that the opening / closing valve slides along the guide hole; The on-off valve contacts the guide hole to seal between the conveyance passage and the guide hole. When the foreign matter contained in the fluid is not caught between the on-off valve and the guide hole when the contact hole is in contact with the guide hole, / Cut section.

Preferably, the contact / cut-out portion is protruded from the opening / closing valve, is in line contact with the guide hole to seal the guide hole, and at least one contact / And a control unit.

Preferably, the cylinder unit is an air cylinder that reciprocates the piston rod using the pressure of the air flowing into and out of the cylinder case.

Preferably, the main body further comprises at least one feed screw which is installed in the feed channel to be rotatable about a rotation axis, and which can compress and feed the fluid.

According to another aspect of the present invention, there is provided a valve assembly including: a transfer passage for transferring a fluid; A discharge port that receives the fluid from the transfer path and discharges the fluid to the outside; A guide hole provided between the transfer path and the discharge port for connecting the transfer path to the discharge port; An opening / closing valve which is slidably installed in the guide hole and is in contact with the guide hole to seal between the transfer passage and the discharge port or to be released from contact with the provisional hole to open the transfer passage and the discharge port; And an elastic unit that applies an elastic force to the opening / closing valve to bring the opening / closing valve into contact with the guide hole, and elastically deforms by the fluid when the fluid pressure is greater than the elastic force, The valve includes a contact / cut-out portion which is in contact with the feed passage and which is in contact with the guide hole, and contacts the guide hole while cutting the foreign matter so as to prevent foreign substances contained in the fluid from being caught between the open- .

Preferably, the contact / cut portion is protruded from the open / close valve and is in line contact with the guide hole to seal between the transfer passage and the discharge port, and at least one contact / Cutting < / RTI >

Preferably, the elastic unit includes: a support portion provided apart from the opening / closing valve; And a compression spring provided between the supporting portion and the opening and closing member and biasing the opening and closing valve so as to be elastically biased so as to be in contact with the guide hole.

The valve assembly according to the present invention has the following effects.

First, a cut-off portion made of a solid or viscous liquid and capable of cutting foreign matter contained in the fluid is provided on the on-off valve, and a foreign substance is mixed with a discharge port or a communication hole selectively opened / It is possible to prevent a clearance that can leak the fluid from occurring.

Second, a cut-off portion made of a solid or viscous liquid and capable of cutting a foreign matter contained in the fluid is provided in at least one of the ball valve and the sealing member sealing the ball valve, It is possible to prevent occurrence of a clearance that can leak.

Third, it is possible to provide a valve assembly that can be used for a fluid including a large amount of foreign matter made of solid or viscous liquid.

1 is a sectional view of a valve assembly according to a first embodiment of the present invention;
2 is a cross-sectional view of the valve assembly showing the outlet of the valve assembly of FIG. 1 being open;
Figs. 3a to 3d are partial enlarged views of an opening / closing valve and an outlet for explaining the manner in which the contact / cutting protrusion of the valve assembly of Fig. 1 cuts foreign matter contained in the fluid; Fig.
4 is a cross-sectional view of a valve assembly according to a second embodiment of the present invention;
Figs. 5A and 5B are partial enlarged views of an opening / closing valve and an outlet for explaining an aspect in which the cutting groove of the valve assembly of Fig. 4 cuts foreign matter contained in the fluid. Fig.
6 is a cross-sectional view of a valve assembly according to a third embodiment of the present invention.
7 is a sectional view of the valve assembly showing the communication hole of the valve assembly of FIG. 6 opened;
8A and 8B are partial enlarged views of an opening / closing valve and a communication hole for explaining the manner in which the contact / cutting projection of the valve assembly of FIG. 7 cuts foreign matter contained in the fluid.
9 is a sectional view of a valve assembly according to a fourth embodiment of the present invention;
10 is a cross-sectional view of a valve assembly in which the ball valve of the valve assembly of FIG. 9 is rotated to show a first flow path and a second flow path blocked.
Figure 11 is an exploded perspective view of the ball valve and sealing member of the valve assembly of Figure 9;
Figs. 12A and 12B are partial enlarged views of a ball valve and a sealing member for explaining the manner in which the cutting groove of the valve assembly of Fig. 9 cuts foreign matter contained in the fluid. Fig.
13 is a sectional view of a valve assembly according to a fifth embodiment of the present invention.
14 is a cross-sectional view of the valve assembly of FIG. 13 showing the state in which the ball valve of the valve assembly is pivoted to disconnect the first and second flow paths.
Figs. 15A and 15B are partial enlarged views of a ball valve and a sealing member for explaining the manner in which the sealing / cutting projection of the valve assembly of Fig. 12 cuts foreign matter contained in the fluid. Fig.
16 is a sectional view of a valve assembly according to a sixth embodiment of the present invention.
17 is a cross-sectional view of the valve assembly in which the opening and closing valve of the valve assembly of Fig. 16 is in contact with the guide hole; Fig.
18A and 18B are partially enlarged views of an opening / closing valve and a guide hole for explaining the manner in which the contact / cutting projection of the valve assembly of FIG. 1 cuts foreign matter contained in the fluid.
19 is a sectional view of a valve assembly according to a seventh embodiment of the present invention.
Figure 20 is a cross-sectional view of the valve assembly of Figure 19 showing the outlet of the valve assembly open;
Figs. 21A and 21B are partial enlarged views of an opening / closing valve and a guide hole for explaining the manner in which the contact / cutting projection of the valve assembly of Fig. 19 cuts foreign matter contained in the fluid. Fig.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

In the drawings, the size of each element or a specific part constituting the element is exaggerated, omitted or schematically shown for convenience and clarity of description. Therefore, the size of each component does not entirely reflect the actual size. In the following description, it is to be understood that the detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a cross-sectional view of a valve assembly according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of a valve assembly showing an outlet port of the valve assembly of FIG. 1, Sectional view of an opening / closing valve and an outlet for explaining the manner in which the contact / cutting protrusion of the assembly cuts foreign matter contained in the fluid.

1 to 3, the valve assembly 1 according to the first embodiment of the present invention includes a main body 10, an outlet 20, an on-off valve 30, and a transfer unit (not shown) .

The main body 10 forms an outer appearance of the valve assembly 1, is coupled with an external pipe, and has a transfer passage 12. The transfer passage 12 communicates with an external pipe connected to the main body 10 and transfers the fluid introduced from the external pipe.

The discharge port 20 is connected to the transfer path 12 to discharge the fluid transferred by the transfer path 12 to the outside. As shown in FIG. 1, the discharge port 20 is preferably formed to have an inclined structure in which the inner diameter increases toward the outside, but is not limited thereto.

The opening and closing valve 30 may contact the discharge port 20 to seal the discharge port 20 or open the discharge port 20 away from the discharge port 20. The transfer unit can reciprocate so as to bring the open / close valve 30 in contact with or spaced from the discharge port 20.

1 and 2, the open / close valve 30 is engaged with the shaft 40 of the transfer unit. When the transfer unit is driven to reciprocate the shaft 40, So that the discharge port 20 can be selectively closed or opened.

In the case where the fluid includes a large amount of foreign matter composed of solid or viscous fluid, foreign matter may be trapped between the opening / closing valve and the discharge port, and a clearance may be generated between the opening / closing valve and the discharge port. In this case, since the fluid may leak through the clearance generated between the opening / closing valve and the discharge port, the conventional open / close valve has a problem that it is not suitable for use when the fluid contains a large amount of foreign matter made of solid or viscous fluid.

In order to solve this problem, the opening / closing valve 30 of the valve assembly 1 according to the first embodiment of the present invention contacts the discharge port 20 to seal the discharge port 20, And a contact / cutout portion contacting the discharge port 20 while cutting off the foreign substance so that the foreign substance contained in the fluid is not caught between the opening and closing valve 30 and the discharge port 20. That is, the valve assembly 1 according to the first embodiment of the present invention includes the opening / closing valve 30 and the outlet 20, including a contact / cutout portion capable of simultaneously performing sealing of the outlet 20 and cutting of foreign matter, Thereby preventing the foreign matter from being caught between them.

The structure of the contact / cut portion is not particularly limited. For example, as shown in Fig. 1, the contact / cut portion is protruded toward the discharge port 20, and is in line contact with the discharge port 20 to seal the discharge port 20, And at least one contact / cutting projection (32) in line contact with the outlet (20) while cutting the foreign matter. More specifically, the contact / cutting protrusion 32 protrudes along the periphery of the opening / closing valve 30 so as to seal the discharge port 20, and the discharge / And the ends thereof are linearly formed.

As shown in Fig. 1, when a plurality of contact / cutting projections 32 are formed and the inner diameter of the discharge port 20 increases toward the outside, the outer diameter of each of the plurality of contact / The plurality of contact / cutting projections 32 can be in line contact with the discharge port 20, respectively.

3A and 3B, when the opening / closing valve 30 is moved toward the discharge opening 20 by the transfer unit, the contact / cutting projection 32 is opened and closed by the opening / closing valve 30 and the discharge opening 20, It is possible to seal the discharge port 20 in a line contact with the discharge port 20 while cutting the foreign matter placed between the discharge port 20 and the discharge port 20. Therefore, even when foreign matter is contained in a large amount in the fluid, it is possible to prevent the occurrence of clearance that can leak the fluid between the opening and closing valve 30 and the discharge port 20 due to foreign matter.

3C, when a plurality of contact / cutting protrusions 32 are provided, a space in which a part of the small cut foreign material is formed between the plurality of contact / cutting protrusions 32 may remain have. As shown in FIG. 3D, when the open / close valve 32 is moved and the discharge port 20 is opened again, the foreign matter left in the space formed between the plurality of contact / cutting projections 32 is discharged through the discharge port 20 And can be discharged to the outside by the fluid discharged through the pipe.

FIG. 4 is a cross-sectional view of a valve assembly according to a second embodiment of the present invention. FIGS. 5A and 5B are views showing an opening / closing valve for explaining an aspect of cutting a foreign substance contained in a fluid, Fig.

4 to 5B, a valve assembly 2 according to a second embodiment of the present invention includes a main body 10, an outlet 20, an on-off valve 30, and a transfer unit. The valve assembly 2 according to the second embodiment of the present invention differs from the valve assembly 1 according to the first embodiment of the present invention in the construction of the contact / ), The discharge port 20, and the configuration of the transfer unit are the same as those of the valve assembly 1 according to the first embodiment of the present invention. Therefore, in the following, the valve assembly 2 according to the second embodiment of the present invention will be described focusing on the configuration of the contact / cut portion of the opening / closing valve 30. [

The contact / cutout portion of the on-off valve 30 includes a contact surface 34 which contacts the discharge port 20 to seal the discharge port 20 and a contact surface 34 which is formed at a predetermined depth, And at least one cutting groove 36 for cutting the foreign substance when it is contacted with the cutting groove 36 and the like.

4, the contact surface 34 is formed in an inclined structure that increases in outer diameter so as to be contactable with the discharge port 20, and the cut groove 36 is formed in advance along the circumference of the contact surface 34 And is formed at a predetermined depth. Further, the edge portion of the cutting groove 36 where the cutting groove 36 and the contact surface 34 meet is formed so as to be able to cut foreign matter contained in the fluid.

5A and 5B, when the open / close valve 30 is moved toward the discharge port 20 by the transfer unit, the contact surface 34 comes into contact with the discharge port 20 to seal the discharge port 20 And the cutting grooves 36 can cut foreign matters located between the opening and closing valve 30 and the discharge port 20. [ Therefore, even when foreign matter is contained in a large amount in the fluid, it is possible to prevent the occurrence of clearance that can leak the fluid between the opening and closing valve 30 and the discharge port 20 due to foreign matter.

6 is a cross-sectional view of a valve assembly according to a third embodiment of the present invention, Fig. 7 is a sectional view of a valve assembly showing a communication hole of the valve assembly of Fig. 6, Figs. 8A and 8B are cross- Closing valve and a communication hole for explaining the manner in which the contact / cutting protrusion of the valve assembly cuts foreign matter contained in the fluid.

6 to 8B, the valve assembly 3 according to the third embodiment of the present invention includes a main body 110, a communication hole 120, an on-off valve 130, and a transfer unit.

The main body 110 forms an outer appearance of the valve assembly 3 according to the present invention and is coupled to an external pipe and has a first flow path 112 and a second flow path 114. The first flow path 112 and the second flow path 114 communicate with an external pipe connected to the main body 110, respectively, and transfer the fluid introduced from the external pipe.

The communication hole 120 is provided between the first flow path 112 and the second flow path 114 to allow the first flow path 112 and the second flow path 114 to communicate with each other. That is, the fluid can flow from the first flow path 112 toward the second flow path 114 or from the second flow path 114 toward the first flow path 112 by the communication hole 120 . The communication hole 120 is preferably formed in an inclined structure in which the inner diameter increases from one of the first flow path 112 and the second flow path 114 to the other, but is not limited thereto. Hereinafter, the present invention will be described on the basis of a case in which the communication hole 120 is formed in an inclined structure in which the inner diameter increases from one of the first flow path 112 and the second flow path 114 to the other do.

The opening and closing valve 130 may contact the communication hole 120 to seal the communication hole 120 or may be spaced apart from the communication hole 120 to open the communication hole 120. The transfer unit can reciprocate so as to bring the opening / closing valve 130 into contact with or away from the communication hole 120.

6 and 7, the opening and closing valve 130 is engaged with the shaft 140 of the transfer unit, and the transfer unit is driven to move along the shaft 140 of the transfer unit when the shaft 140 reciprocates The communication hole 120 can be selectively closed or opened while being reciprocated so as to be contacted with or spaced from the communication hole 120.

If foreign matter contained in the fluid is caught between the opening and closing valve 130 and the communication hole 120 and the clearance is generated, the fluid may leak through the clearance. The valve assembly 3 according to the third embodiment of the present invention is configured such that the valve assembly 3 is in contact with the communication hole 120 to seal the communication hole 120 and when the valve assembly 3 is in contact with the communication hole 120, 130) and the communication hole (120) so as to prevent foreign matter contained in the fluid from being caught in the communication hole (120).

That is, the valve assembly 3 according to the third embodiment of the present invention includes a contact / cutout portion that can perform both sealing of the communication hole 120 and cutting of the foreign substance, 120 to prevent the foreign matter from being caught between them.

The structure of the contact / cut portion is not particularly limited. 6, the contact / cutout portion is protruded from the opening / closing valve 130, is in line contact with the communication hole 120 to seal the communication hole 120, And at least one contact / cutting protrusion 132 which is in line contact with the communication hole 120 while cutting the foreign material when the wire is contacted.

More specifically, the contact / cutting protrusion 132 protrudes along the outer circumferential surface of the opening / closing valve 130 so as to seal the communication hole 120, and the communication hole 120 is formed so as to cut foreign substances contained in the fluid. So that the ends thereof are linearly sharpened.

6, a plurality of contact / cutting protrusions 132 are formed and the inner diameter of the communication hole 120 is set so that one of the first flow path 112 and the second flow path 114 is on the other side The outer diameter of each of the plurality of contact / cutting protrusions 132 gradually increases from one of the first flow path 112 and the second flow path 114 to the other, corresponding to the inner diameter of the communication hole 120 So that the plurality of contact / cutting projections 132 can be linearly contacted with the communication holes 120, respectively.

8A and 8B, when the opening / closing valve 130 is transported toward the communication hole 120 by the transfer unit, the contact / cutting projection 132 is opened and closed by the opening / closing valve 130 and the communication hole 120, so that the communication hole 120 can be closed by making a line contact with the communication hole 120. Accordingly, even when a large amount of foreign matter is contained in the fluid, it is possible to prevent a gap, which may leak the fluid between the opening and closing valve 130 and the communication hole 120, from being generated due to foreign matter.

FIG. 9 is a cross-sectional view of a valve assembly according to a fourth embodiment of the present invention, and FIG. 10 is a cross-sectional view of a valve assembly in which a ball valve of the valve assembly of FIG. 9 is rotated to block the first flow path and the second flow path .

12 is a perspective view of the ball valve and the sealing member of the valve assembly of FIG. 9, and FIGS. 12A and 12B are views for explaining an aspect of cutting the foreign matter contained in the fluid, Fig. 6 is a partial enlarged view of the valve and the sealing member; Fig.

9 to 12B, the valve assembly 4 according to the fourth embodiment of the present invention includes a main body 210, a ball valve 220, a rotating unit (not shown), a sealing member 230, .

The main body 210 is formed with an outer tube of the valve assembly 4 according to the present invention and includes a first flow path 212, a second flow path 214, an assembly chamber 216, . The first flow path 212 and the second flow path 214 communicate with an external pipe connected to the main body 210 to transfer the fluid introduced from the external pipe. The assembly chamber 216 is provided between the first flow path 212 and the second flow path 214 and provides a space for installing the ball valve 220 and the rotating unit.

The ball valve 220 is rotatably installed between the first flow path 212 and the second flow path 214 and selectively connects the first flow path 212 and the second flow path 214 while being rotated by the rotation unit. Or block. 9 and 10, the pivoting unit is configured to rotate the ball valve 220 about the rotation axis 220a so as to selectively connect or disconnect the first flow path 212 and the second flow path 214 .

9, the ball valve 220 includes a connection hole 222 formed through a central portion thereof, and is connected to an assembly chamber 216 provided between the first flow path 212 and the second flow path 214 And is rotatably installed. Also, the ball valve 220 is engaged with a shaft (not shown) of the rotating unit and can be rotated about the rotating shaft 220a by the shaft when the rotating unit is driven. Accordingly, when the ball valve 220 is rotated by the pivoting unit and the connection hole 222 is disposed in parallel with the first flow path 212 and the second flow path 214, the first flow path 212 and the second flow path 212, The first flow path 212 and the second flow path 214 may be blocked when the flow path 214 is connected and the connection hole 222 is disposed to be offset from the first flow path 212 and the second flow path 214 .

The sealing member 230 is installed between the first flow path 212 and the second flow path 214 to be in contact with the ball valve 220 and can seal the ball valve 220. 9, a pair of stepped portions 218 are formed on the inner surface of the body 210 so that the sealing member 230 can be installed, and a pair of the sealing members 230 are provided, Respectively. 11, an insertion groove 232 having the same curvature as that of the outer circumferential surface of the ball valve 220 is formed on one side of the sealing member 230. As shown in FIG. Accordingly, the pair of sealing members 230 are respectively installed on the upper and lower sides of the ball valve 220 so that the insertion groove 232 surrounds the outer circumferential surface of the ball valve 220, thereby sealing the ball valve 220.

The sealing member 230 contacts the ball valve 220 to seal the ball valve 220 and the fluid to be delivered through the first flow path 212 and the second flow path 214 is made of a solid or viscous liquid A foreign matter may be trapped between the sealing member 230 and the ball valve 220, that is, between the insertion groove 232 and the ball valve 220, so that a gap may be created where the fluid may leak.

In order to solve this problem, the valve assembly 4 according to the fourth embodiment of the present invention may further include a cut-out portion capable of cutting foreign matter when the ball valve 220 is rotated. That is, when the foreign matter enters between the ball valve 220 and the sealing member 230, the foreign matter is cut off so as to easily escape from between the ball valve 220 and the sealing member 230, Thereby preventing foreign substances from being caught between the ball valves 220.

The structure of the cut portion is not particularly limited. For example, the cut portion may include a first cut groove 224 and a second cut groove 234. [ The first cutting groove 224 may be formed at a predetermined depth on the contact surface of the ball valve 220 contacting the sealing member 230 and the second cutting groove 234 may be formed by a ball valve 220 At least one of the contact surfaces of the sealing member 230 may be formed at a predetermined depth.

9 and 11, the first cut groove 224 has a ball valve 220 on the contact surface of the ball valve 220 that contacts the insertion groove 232 of the sealing member 230, And the second cutting groove 234 may be formed along the periphery of the insertion groove 232 on the contact surface of the insertion groove 232 in contact with the ball valve 220.

The edge of the first cutting groove 224 where the contact surface of the ball valve 220 contacting the insertion groove 232 meets the first cutting groove 224 and the edge of the insertion groove 232 and the second cutting groove 234 meet are sharply formed so as to cut foreign matter contained in the fluid.

12A and 12B, when the ball valve 220 is rotated by the pivoting unit, the first cutting groove 224 and the second cutting groove 234 of the cutting portion are in contact with the sealing member 230 The foreign substances introduced into the ball valve 220 can be easily cut out from the space between the sealing member 230 and the ball valve 220. [ In particular, the pivoting unit preferably rotates the ball valve 220 so that at least a portion of the first cutting groove 224 and the second cutting groove 234 cross each other in a staggered manner, The second cutting grooves 234 intersect with each other so that foreign matter can be cut more finely. As a result, the sealing member 230 and the sealing member 230 can be separated from each other by the foreign matter trapped between the ball valve 220 and the sealing member 230, It is possible to prevent a gap from being generated between the valves 220.

FIG. 13 is a cross-sectional view of a valve assembly according to a fifth embodiment of the present invention, and FIG. 14 is a sectional view of a valve assembly in which a ball valve of the valve assembly of FIG. Figs. 15A and 15B are partial enlarged views of a ball valve and a sealing member for explaining the manner in which the sealing / cutting projection of the valve assembly of Fig. 12 cuts foreign matters contained in the fluid.

13 to 15B, a valve assembly 5 according to a fifth embodiment of the present invention includes a main body 210, a ball valve 220, a rotating unit (not shown), a sealing member 240, . The valve assembly 5 according to the fifth embodiment of the present invention does not include a cutting portion composed of the first cutting groove 224 and the second cutting groove 234 and includes a sealing / cutting projection 242 Which is different from the valve assembly 5 according to the fourth embodiment of the present invention. Hereinafter, the valve assembly 5 according to the fifth embodiment of the present invention will be described with the sealing / cutting projection 242 as the center.

The sealing member 240 is installed between the first flow path 212 and the second flow path 214 so as to be in contact with the ball valve 220 and seals the ball valve 220 and connects the sealing member 240 and the ball valve 220 It is possible to prevent the foreign matter from being caught in the space. The sealing member 240 protrudes toward the ball valve 220 and is in line contact with the ball valve 220 to seal the ball valve 220. When the ball valve 220 is rotated, At least one sealing / cutting protrusion 242,

More specifically, the sealing / cutting protrusion 242 protrudes along the periphery of the sealing member 240, and an end portion of the ball valve 220, which is in line contact with the ball valve 220, is cut do. That is, the valve assembly 5 according to the fifth embodiment of the present invention is provided with a sealing / cutting protrusion 242 which can be in line contact with the ball valve 220 on the outer peripheral surface of the sealing member 240, The sealing of the ball valve 220 and the cutting of foreign matter can be carried out together through the protrusion 242. [

15A and 15B, when the ball valve 220 is rotated by the rotation unit, the sealing / cutting protrusion 242 is in contact with the ball valve 220 while the sealing member 240 And the ball valve 220 can easily be cut out from the space between the sealing member 240 and the ball valve 220. [ As a result of this, foreign matters introduced between the ball valve 220 and the sealing member 240 can be cut through the sealing / cutting protrusion 242. As a result, foreign matter trapped between the ball valve 220 and the sealing member 240, It is possible to prevent the clearance between the member 240 and the ball valve 220 from being generated.

16 is a sectional view of a valve assembly according to a sixth embodiment of the present invention, FIG. 17 is a sectional view of a valve assembly showing a state in which the opening and closing valve of the valve assembly of FIG. 16 is released from the guide hole, and FIGS. 18A and 18B 16 is a partial enlarged view of an opening / closing valve and a guide hole for explaining the manner in which the contact / cutting projection of the valve assembly of FIG. 16 cuts foreign matter contained in the fluid.

16 and 17, the valve assembly according to the sixth embodiment of the present invention includes a main body 310, a transfer passage 320, a transfer screw 330, a discharge port 340, a guide hole 350, An on-off valve 360, a cylinder unit 370, and the like.

The body 310 forms the outer appearance of the valve assembly according to the present invention, and is coupled with an external pipe, and various components of the valve assembly according to the present invention may be installed therein.

The transfer path 320 communicates with an external pipe connected to the main body 310 to transfer the fluid introduced from the external pipe.

The conveyance screw 330 is rotatably installed in the conveyance passage 320 and compresses and transfers the fluid introduced into the conveyance passage 320 while rotating around the rotation axis. The number of the conveyance screws 330 that can be installed in the conveyance passage 320 is not particularly limited. For example, as shown in FIG. 16, two conveyance screws 330 may be installed in the conveyance passage 320.

The discharge port 340 is formed through a guide hole 350 to be described later and is connected to the transfer path 320 by the guide hole 350 and receives the fluid from the transfer path 320 through the guide hole 350 It can be discharged to the outside. The outlet 340 may be connected to an external tube to deliver fluid from an external tube.

The guide hole 350 is provided between the transfer path 320 and the discharge port 340 to connect the transfer path 320 to the discharge port 340. That is, the fluid transferred by the transfer path 320 is guided to the discharge port 340 by the guide hole 350.

The structure of the guide hole 350 is not particularly limited. For example, as shown in FIG. 16, the guide hole 350 may have a diameter larger than that of the conveyance passage 320, and may be connected to the conveyance passage 320 in a stepped manner.

The opening and closing valve 360 is slidably installed in the guide hole 350 and is in contact with the guide hole 350 to seal the conveyance passage 320 and the discharge port 340 or to be disengaged from the guide hole 350 And a contact / cutout portion capable of opening between the transfer passage 320 and the discharge port 340.

The opening and closing valve 360 is engaged with the piston rod 374 of the cylinder unit 370 and can slide along the guide hole 350 by the cylinder unit 370. An O- Closing valve 360 and the guide hole 350 are sealed.

The contact / cut part is in contact with the guide hole 350 to seal the guide hole 350. When the contact / cut part comes in contact with the guide hole 350, It is possible to contact the guide hole 350 while cutting the foreign substance.

The structure of such contact / cut portion is not particularly limited. 16, the contact / cut portion is protruded from the opening / closing valve 360 and is in line contact with the guide hole 350 to seal the guide hole 350, And at least one contact / cutting protrusion 364 that comes into line contact while cutting the foreign material when it is line contacted.

The pressing / cutting projection 364 protrudes from the front surface of the opening / closing valve 360 so as to face the stepped surface 352 of the guide hole 350 to which the conveyance passage 320 and the guide hole 350 are connected, An end portion that is in line contact with the stepped surface 352 of the guide hole 350 is formed so as to be able to cut the foreign matter contained therein.

The cylinder unit 370 provides a driving force to the opening and closing valve 360 so that the opening and closing valve 360 can slide and includes a cylinder case 372 and a piston rod 374 and the like. The cylinder unit 370 converts the pneumatic energy or hydraulic energy into a linear motion to generate a driving force, and the driving force can be provided to the opening / closing valve 360. Hereinafter, for convenience of explanation, the cylinder unit 370 is an air cylinder using pneumatic energy, but the present invention is not limited thereto.

The cylinder case 372 forms the body of the cylinder unit 370, and may be fixedly installed on one side of the body 310. A piston (not shown) is formed in the cylinder case 372 and a piston (not shown) is advanced toward the stepped surface 352 of the guide hole 350 or a stepped surface (Not shown). At least two air ports (not shown) may be formed on the outer side of the cylinder case 372 to connect an external pneumatic system (not shown) and the piston chamber to allow air to flow in and out of the piston chamber.

The piston rod 374 is coupled to the piston at one end in the cylinder case 372 and at the other end to the outside of the cylinder case 372 to engage with the open / close valve 360. Therefore, when air is flown into and out of the piston chamber of the cylinder case 372 through the air port, the piston and the piston rod 374 are reciprocated by the pressure of the air. As a result, the opening / closing valve 360 coupled with the piston rod 374 is slid along the guide hole 350 so that the contact / cutting projection 364 is brought into contact with or released from the stepped surface 352 of the guide hole 350 Can be moved.

As the open / close valve 360 and the cylinder unit 370 are provided as described above, the open / close valve 360 is moved toward the step surface 352 of the guide hole 350, as shown in FIGS. 18A and 18B The pressing / cutting protrusion 364 is in line contact with the stepped surface 352 of the guide hole 350 while cutting the foreign matter between the opening / closing valve 360 and the stepped surface 352 of the guide hole 350, Thereby sealing between the discharge port 320 and the discharge port. Therefore, even when foreign matter is contained in a large amount in the fluid, it is possible to prevent a gap, which may leak the fluid between the opening and closing valve 360 and the guide hole 350, from being generated due to foreign matter.

19 is a cross-sectional view of a valve assembly according to a seventh embodiment of the present invention, Fig. 20 is a sectional view of a valve assembly showing an outlet port of the valve assembly of Fig. 19, Figs. 21A and 21B are cross- Sectional view of an opening / closing valve and a guide hole for explaining the manner in which the contact / cutting protrusion of the assembly cuts foreign matter contained in the fluid.

19 and 20, the valve assembly according to the seventh embodiment of the present invention includes a main body 310, a transfer passage 320, a transfer screw 330, a discharge port 340, a guide hole 350, A valve 360, and an elastic unit 380 and the like.

The valve assembly according to the seventh embodiment of the present invention is different from the valve assembly according to the sixth embodiment of the present invention in that it includes an elastic unit 380 instead of the cylinder unit 370, . Therefore, the same reference numerals as those of the valve assembly according to the sixth embodiment of the present invention are used for the same configuration as the valve assembly according to the sixth embodiment of the present invention. Hereinafter, the valve assembly according to the seventh embodiment of the present invention will be described with the elastic unit 380 as the center.

The elastic unit 380 applies an elastic force to the opening and closing valve 360 to bring the opening and closing valve 360 into contact with the guide hole 350. When the fluid pressure is larger than the elastic force, (360) and the guide hole (350).

The structure of the elastic unit 380 is not particularly limited. 19, the elastic unit 380 may include a support portion 381, an escape prevention rod 382, a compression spring 383, and the like.

The support portion 381 is provided at one side of the main body 310, has a hollow shape, is opened at one end and communicates with the guide hole 340, and the other end is closed. On the inner circumferential surface of the support portion 381, a hollow spacer 385 having a predetermined thickness is provided adjacent to the closed other end of the support portion 381.

The one end 382a of the release preventing bar 382 is coupled to the opening and closing valve 360 and the other end 382b of the release preventing bar 382 is connected to the hollow 384 of the spacer 385 through the open end of the support portion 381, (386). The release preventing bar 382 is provided with a flange 387 having a predetermined diameter so that the release preventing bar 382 is connected to the opening and closing valve 360 so that the flange 387 contacts the on- .

The compression spring 383 is provided between the support portion 381 and the opening and closing valve 360 and elastically biases the opening and closing valve 360 to be in contact with the guide hole 350. More specifically, the compression spring 383 is installed by being engaged with the release preventing rod 382 so that one end of the compression spring 383 is engaged with the flange 387 of the release preventing rod 382 and the other end is caught by the spacer 385.

The opening and closing valve 360 is moved in the direction of the step surface of the guide hole 350 by the elastic force applied from the compression spring 383, as shown in FIG. 19, when the fluid pressure is smaller than the elastic force of the compression spring 383 352). Therefore, the contact / cutting projection 364 is in line contact with the stepped surface 352 of the guide hole 350, and the space between the transfer path 320 and the discharge port 340 is sealed.

When the pressure of the fluid is larger than the elastic force of the compression spring 383, the compression spring 383 is compressed by the pressure of the fluid applied to the compression spring 383 via the opening / closing valve 360, Is contracted. Therefore, the opening / closing valve 360 and the escape prevention rod 382 are retracted away from the stepped surface 352 of the guide hole, and the contact / cutting projection 364 is disengaged from the stepped surface 352 of the guide hole 350 And the space between the transfer path 320 and the discharge port 340 is opened.

The compression spring 383 is extended in length and the opening and closing valve 360 and the escape prevention rod 382 are connected to the compression spring 383 in such a manner that the pressure of the fluid is further reduced to less than the elastic force of the compression spring 383. [ The contact / cutting projection 364 is again brought into line contact with the stepped surface 352 of the guide hole 350 by the elastic force.

When the opening / closing valve 360 is moved toward the stepped surface 352 of the guide hole 350 as shown in Figs. 21A and 21B, the elastic unit 380 is provided, 364 are in line contact with the stepped surface 352 of the guide hole 350 while cutting foreign matters between the opening and closing valve 360 and the stepped surface 352 of the guide hole 350, 340). Therefore, even when foreign matter is contained in a large amount in the fluid, it is possible to prevent a gap, which may leak the fluid between the opening and closing valve 360 and the guide hole 350, from being generated due to foreign matter.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

10: main body 12:
20: outlet 30: opening / closing valve
32: contact / cutting projection 34: contact surface
36: cutting groove 40: shaft
110: main body 112: first flow path
114: second flow path 120: communication hole
130: opening / closing valve 132: contact / cutting projection
140: shaft 210:
212: first flow path 214: second flow path
216: Assembly chamber 218:
220: Ball valve 222: Connection hole
224: first cut groove 230, 240: sealing member
232: insertion groove 234: second cutting groove
242: sealing / cutting projection 310:
320: Feeding channel 330: Feeding screw
340: Outlet 350: Guide hole
360: opening / closing valve 362: O-ring
364: contact / cutting projection 370: cylinder unit
372: Cylinder case 374: Piston rod
380: elastic unit 381:
382: Disengagement prevention rod 383: Compression spring

Claims (17)

delete delete delete delete delete delete delete delete delete delete delete delete delete delete A transfer path for transferring the fluid;
A discharge port that receives the fluid from the transfer path and discharges the fluid to the outside;
A guide hole provided between the transfer path and the discharge port for connecting the discharge path with the transfer path;
The guide hole is slidably received in the guide hole so as to face one side of the guide hole. The guide hole is in contact with a side surface of the guide hole to seal between the conveyance passage and the discharge port, An open / close valve capable of opening between the outlets; And
A support portion provided at a predetermined distance from the opening / closing valve, a support portion provided between the support portion and the opening / closing valve so as to elastically press the opening / closing valve toward one side of the guide hole, Wherein when the pressure of the fluid is greater than a predetermined size, the valve is compressed so that one side of the guide hole is released from contact with the valve, and if the pressure of the fluid applied to the valve is smaller than the predetermined value, And an elastic unit having a compression spring that is stretched so that one side of the hole is in contact with the elastic unit;
The on-
And a guide hole formed in the guide hole, wherein the guide hole is formed in the guide hole, and the guide hole is in contact with one side surface of the guide hole to seal between the conveyance passage and the discharge port, And a contact / cut-off portion contacting the one side of the guide hole while cutting the valve body. 16. The method of claim 15,
The contact /
And a guide member which is formed in the guide hole and is in line contact with one side surface of the guide hole to seal between the conveyance passage and the discharge port, / RTI > wherein the at least one abutting / cutting protrusion is at least partially engaged with the at least one abutting / cutting projection. delete

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