KR101779328B1 - Coupler for fluid discharge with improved matching structure - Google Patents

Abstract

A coupler for discharging a fluid of the present invention is configured to have a matching member independently rotating in a middle body, such that matching of a code groove and a code projection can be accomplished, thereby preventing entanglement of a hose for gas injection and a hose for fluid discharge, and thus, the coupling of the coupler and the discharge of the fluid stored in a container can be smoothly performed. The coupler comprises: a bottom body having a cylindrical bottom housing with the code groove of a specific pattern, a tube with an inner flow path, and a plurality of gas injection holes and fastened on a discharge hole side of the container for storing the fluid through a fastening part of the bottom housing; the middle body having a cylindrical middle housing, a middle post, and a gas injection member to inject gas to a middle hollow; a top body having a top housing with a vertically penetrated top hollow, a discharge member, and a top post having one end inserted to the flow path of the tube; and the annular matching member having the code projection formed in a shape corresponding to a shape of the code groove and inserted to the middle post of the middle body to be able to rotate.

Description

[0001] Coupler for fluid discharge with improved matching structure [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fluid discharge coupler, and more particularly, to a fluid discharge coupler having a matching means that allows a specific fluid to be connected only to a stored vessel.

As a technique relating to a fluid discharging coupler, a sensing structure improving type coupler for discharging a storage fluid of a drum is disclosed in Korean Patent Registration No. 10-1587425 (registered on May 15, 2015, hereinafter referred to as "Prior Art").

In the prior art,

A cylindrical bottom housing having a fastening portion and an upper and a lower bottom hollow communicating with each other in a lower outer circumferential surface, a tube connected to a lower portion of the bottom housing and having an internal flow passage communicating with the bottom hollow, A bottom body including a plurality of gas injection holes formed along the bottom of the bottom housing and coupled to a discharge port side of the drum through a fastening portion of the bottom housing;

A cylindrical middle housing having an upper and a lower through-hole middle hollow and a spiral portion formed on an upper side inner peripheral surface of the hollow middle hollow, and a corresponding middle hollow communicating with the middle hollow and connected to the lower hollow, A middle post, and a gas injection member mounted to the middle housing side for injecting gas into the middle hollow;

A top housing having a corresponding spiral portion for interlocking with the spiral portion of the middle housing on a lower outer circumferential surface thereof and a vertically penetrating top hollow in the interior thereof, a discharge member provided in a top hollow portion of the top housing of the top housing, And a top post having a corresponding top hollow communicating with the top hollow and having an end inserted into the flow path of the tube;

And a lift post having an inner flow hole for insertion of the top post and inserted into the corresponding middle hollow of the middle post and having a smaller diameter than the corresponding middle hollow and an end portion exposed to the lower side of the middle post, unit; And

A sensing unit for sensing a displacement (displacement) of the elevating unit with respect to the elevating post;

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The sensing unit includes an annular magnet which is forcedly inserted along the upper end of the lifting post of the lifting unit, an insertion groove formed in the middle hollow side of the middle body by being hollowed toward the middle hollow side, And a sensing member which is inserted into the insertion groove to closely contact the magnet and senses the magnet, wherein the magnet and the sensing member are in non-contact with each other by the bottom of the insertion groove,

The elevating unit further includes an elastic spring that is fitted to an outer circumferential surface of the top post of the top body and is supported on a top surface of the top housing and an upper surface of the magnet to elastically exert the elastic force toward the magnet.

The non-contact type sensing structure for checking the matching between two couplers of arm and water enables the gas leakage problem found in the sensing structure using the conventional switch terminal and the corrosion and operation of the switch terminal due to leaked gas It is a technology that can solve problems such as defects.

In the above-described prior art, there is provided a matching means including a cord groove formed in a specific pattern on the bottom housing of the bottom body, and a cord projection formed in a lower part of the middle housing of the middle body so as to correspond to the cord groove, The coupling of the coupler can be completed only when the cord groove and the cord projection are mutually male and female and matched.

However, in the prior art, when the coupler is engaged, the coupler is rotated to match the cord protrusion formed on the male coupler composed of the assembly of the middle body, the top body, the elevating unit, and the sensing unit and the cord groove formed on the bottom body fastened to the drum. The hose connected to the gas injection member of the middle body and the hose connected to the discharge member of the top body are twisted with each other in the course of repeated coupling and disconnection of the coupler, .

[Patent Document 1] Korean Registered Patent No. 10-1587425 (Registered on January 15, 2015)

SUMMARY OF THE INVENTION The present invention is conceived to solve the problems as described above, and it is an object of the present invention to provide a fluid discharge coupler which can prevent twisting of a gas injection hose and a fluid discharge hose by improving the structure of a matching means provided in a coupler .

According to an aspect of the present invention, there is provided a fluid discharge coupler comprising:

A cylindrical bottom housing having a fastening portion on the lower outer circumferential surface and a bottom hollow and a cord groove having a specific pattern on the upper portion and the lower portion of the bottom hollow portion, a tube connected to the lower portion of the bottom housing and having an inner passage communicating with the bottom hollow, A bottom body including a plurality of gas injection holes formed along the bottom hollow bottom of the housing, the bottom body being fastened to the outlet side of the fluid storage container through the fastening portion of the bottom housing;

A cylindrical middle housing having an upper and a lower through-hole middle hollow and a spiral portion formed on an upper side inner peripheral surface of the hollow middle hollow, and a corresponding middle hollow communicating with the middle hollow and connected to the lower hollow, A middle post, and a gas injection member mounted to the middle housing side for injecting gas into the middle hollow;

A top housing having a corresponding spiral portion for interlocking with the spiral portion of the middle housing on a lower outer circumferential surface thereof and a vertically penetrating top hollow in the interior thereof, a discharge member provided in a top hollow portion of the top housing of the top housing, And a top post having a corresponding top hollow communicating with the top hollow and having an end inserted into the flow path of the tube; And

And an annular matching member having a cord projection formed on the lower surface to correspond to the cord groove and rotatably fitted in the middle post of the middle body.

The coupler for discharging fluid according to the present invention is constructed so that the matching member is rotated independently in the middle body to match the cord groove and the cord projection, so that the twisting of the gas injection hose and the fluid discharge hose can be prevented, The coupling of the coupler and the discharge of the fluid stored in the container can be smoothly performed.

1 is an exploded sectional view of a fluid discharge coupler according to an embodiment of the present invention;
FIG. 2 and FIG. 3 are coupling sectional views showing an operating state of a fluid discharge coupler according to an embodiment of the present invention. FIG.
4 is a perspective view showing a state in which a matching member is viewed downward in a fluid discharging coupler according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The fluid discharge coupler according to the embodiment of the present invention includes a bottom body 10, a middle body 20, a top body 30, a lift unit 50 A sensing unit 70, and a matching member 60.

The bottom body 10

As shown in Figs. 1 to 3,

A coupling part 111 formed on a lower outer circumferential surface so as to be coupled to a discharge port of a container such as a drum or a can storing a storage fluid, particularly a chemical, and the like, a bottom and bottom hollow cavity 112, A cylindrical bottom housing 11 having a code groove 113 of a specific pattern on its upper portion;

A tube 12 connected to the bottom of the bottom housing 11 and having an inner flow path 121 communicating with the bottom hollow 112; And

And a plurality of gas injection holes (13) formed along the bottom circumference of the bottom hollow (112) of the bottom housing (11).

At this time, the cord grooves 113 formed in the bottom housing 11 are made of one or two or more circular or polygonal grooves.

The channel 121 of the tube 12 has a diameter smaller than that of the bottom hollow 112 so that an upper periphery of the channel 121, that is, a bottom space of the bottom hollow 112 is secured, The plurality of gas injection holes 13 are formed in the periphery.

It is preferred that the tube 12 has a length sufficient to be adjacent to the inner bottom of the vessel.

Each of the gas injection holes 13 has a long hole structure and is arranged radially about the bottom hollow 112, and the number of the gas injection holes 13 is preferably three.

A thread is formed on the inner circumferential surface of the bottom hollow 112. A separate plug or the like for closing the bottom hollow 112 may be fastened to the thread.

The middle body 20

As shown in Figs. 1 to 3,

And is coupled to the upper side of the bottom body 10,

A cylindrical middle housing 21 having an upper and lower through-hole type hollow hollow 211 and a spiral portion 212 on an upper side inner peripheral surface thereof;

A middle post 22 connected to the bottom of the middle housing 21 and having a corresponding middle hollow 221 communicating with the middle hollow 211 and inserted into the bottom hollow 112 of the bottom housing 11; And

And a gas injection member 23 mounted on the side of the middle housing 21 for injecting gas into the middle hollow 211.

It is preferable that the middle post 22 has a length such that the end of the middle post 22 is seated or spaced around the bottom bottom 112 of the bottom housing 11 when the coupler is engaged, It is preferable that it is formed so as to be seated without being interfered with the gas injection hole 13 when it is seated.

As a result, it is preferable that the end of the middle post 22 is seated in the region around the bottom bottom 112 of the bottom housing 11 from the position where the gas injection hole 13 is formed.

The gas injecting member 23 is installed in a mounting portion 213 which is formed at the side of the middle housing 21 of the middle body 20 so as to penetrate up to the corresponding middle hollow 221, .

Therefore, the gas supplied from the external gas injection device flows into the middle hollow 211 through the mounting portion 213, and the gas corresponding to the elevation post 51 of the elevation unit 50 and the middle post 22 And is supplied into the container through the space between the middle hollows 221 through the gas injection holes 13 of the bottom body 10. [

At this time, the supply gas makes it possible to easily discharge the storage fluid in the container by making the atmospheric pressure outside the container equal to the atmospheric pressure inside the container.

A middle O-ring member 222 is provided on an outer circumferential surface of the middle post 22 of the middle body 20 so as to be brought into close contact with an inner circumferential surface of the bottom hollow 112 of the bottom housing 11. The middle O-ring member 222 prevents gas from leaking into the gap between the outer circumferential surface of the middle post 22 and the inner circumferential surface of the bottom hollow 112.

The top body 30

As shown in Figs. 1 to 3,

And is coupled to the upper side of the middle body 20,

A top housing 31 having a corresponding spiral portion 311 for fastening to the spiral portion 212 of the middle housing 21 on the lower outer circumferential surface thereof and a vertically penetrating top hollow 312 therein;

A discharge member (32) provided on the top hollow (312) of the top housing (31); And

A top post 311 having a corresponding tower top hollow 331 connected to the bottom of the top housing 31 and in communication with the top hollow 312 and having an end inserted into the flow path 121 of the tube 12; (33).

The discharge member 32 has an internal discharge passage 321 coupled to an inner circumferential surface of a top hollow portion of the top housing 31 and communicating with the top hollow 312.

Two or more top orifices 332 are provided on the outer circumferential surface of the end portion of the top post 33 in close contact with the inner circumferential surface of the channel 121 of the tube 12.

The top body 30 may further include a check valve 34.

The check valve 34 includes a lower body having a locking rib which is engaged with a step formed in a corresponding top hollow 331 of the top body 30 and a rotary rotary rib bush on the lower side thereof, A spring support 342 disposed on the upper side of the opening and closing member 341 and a valve member 342 interposed between the spring support 342 and the discharge member 32. [ And a spring 343.

As a result, the top body 30 is lifted by the suction force of an external pumping device connected to the discharge member 32, whereby the valve spring 343 is pressed, The side 341 opens between the opening / closing side 341 and the engaging jaw, and the fluid flow path is switched to the open structure.

The lift unit 50

As shown in Figs. 1 to 3,

When the bottom body 10 and the middle body 20 are coupled and matched with each other,

(223) having an inner flow hole (511) for insertion of the top post (33) and having a smaller diameter than the corresponding middle hollow (221) inserted in the corresponding middle hollow (221) of the middle post (22) A lift post 51 exposed to the lower side of the middle post 22; And

And an elastic spring 52 fitted to the outer surface of the top post 33 of the top body 30 and supported on the bottom surface of the top housing 31 and on a top surface of a magnet 71 to be described later, .

The elastic spring 52 is preferably coated with a Teflon material to prevent rusting or deformation of the elastic spring 52.

The middle post 22 of the middle body 20 is inserted into the bottom hollow 112 of the bottom housing 11 when the top and middle bodies 30 and 20 coupled to each other are mounted on the bottom body 10 The elevating posts 51 exposed to the lower side of the middle post 22 while being inserted are brought into contact with the periphery of the upper portion of the flow path 121 of the tube 12 to raise the elevating posts 51 of the elevating unit 50 .

The sensing unit 70

As shown in Figures 2 and 3,

For detecting a displacement of the lifting unit (50) with respect to the lifting post (51)

An annular magnet 71 forcibly inserted along the upper end of the lifting post 51 of the lifting unit 50;

An insertion groove 72 formed at the side of the middle housing 21 of the middle body 20 so as to be recessed toward the middle hollow 211 and having a bottom 721; And

And a sensing member 73 inserted into the insertion groove 72 to closely contact the bottom 721 of the insertion groove 72 to sense the magnet 71.

The sensing member 73 includes a sensing body 731 inserted into the insertion groove 72 and electrically connected to an external controller and a sensing body 731 provided at an end of the sensing body 731, And a magnet sensor 732 which is in close contact with the bottom 721 of the magnet 72.

Preferably, the magnet 71 is disposed along the periphery of the upper portion of the corresponding middle hollow 221 and adjacent to the lower side of the insertion groove 72.

Therefore, when the top and middle bodies 30 and 20 coupled to each other are mounted on the bottom body 10,

The middle post 22 of the middle body 20 is inserted into the bottom hollow 112 of the bottom housing 11 and the lifting post 51 exposed to the lower side of the middle post 22 is inserted into the tube 12, The lifting post 51 of the lifting unit 50 is lifted up,

3, the magnet sensor 732 senses a displacement of the magnet 71 provided at the end of the elevated post 51, and transmits the sensed signal to the controller. As a result, It is possible to check whether the bottom body 10 and the middle body 20 are matched and non-matched when mutually coupled.

According to the sensing unit 70 constructed as described above, the magnet 71 and the sensing member 73 are brought into non-contact with each other by the bottom 721 of the insertion groove 72, It is possible to prevent the leakage of the gas generated in the fluid stored in the container when the fluid stored in the container is leaked.

2 and 3, an annular member (not shown) disposed on the upper side of the mounting portion 213 between the corresponding middle hollow 221 of the middle post 22 and the elevating post 51 of the elevating unit 50, And the outer O-ring O1 prevents the gas occupying the clearance between the corresponding middle hollow 221 and the lifting post 51 from leaking to the magnet 71 side.

2 and 3, an annular inner member (not shown) disposed on the upper side of the mounting portion 213 between the elevating post 51 of the elevating unit 50 and the top post 33 of the top body 30, And the O-ring O2 is provided so that a gas occupying a gap between the lifting post 51 and the top post 33 is supplied to the middle housing 21 of the middle body 20 and the top of the tower body 30 Thereby preventing leakage to the coupling clearance between the housings 31.

The matching member 60 has a cord protrusion 61 formed on a lower surface of the bottom body 10 so as to correspond to the cord groove 113 of the bottom body 10 and is coupled to the middle post 22 of the middle body 20.

3, only when the cord grooves 113 and the cord protrusions 61 are mutually male and female, the lifting posts 51 of the lifting and lowering unit 50 are lifted up by the tube So that the magnet 121 is brought into contact with the periphery of the upper portion of the flow path 121 so that the magnet 71 can be displaced while the elevation post 51 of the elevation unit 50 is raised.

The matching member 60 is annular and is rotatably fitted in the middle post 22 of the middle body 20. At this time, the matching member 60 loosely fits on the upper surface of the outer periphery of the middle post 22, and the engaging portion 223 is formed on the outer peripheral surface of the middle post 22 to support the lower inner side edge of the matching member 60 fitted thereto do.

According to this structure, when the coupler is engaged, the matching member 60 rotates independently in the middle body 20, so that the code groove 113 and the code projection 61 can be matched, The gas injection hose connected to the gas injection member 23 of the top body 30 and the fluid discharge hose connected to the discharge member 32 of the top body 30 can be prevented from twisting, The discharge can be smoothly performed.

1 to 3, the latching part 223 may have a tapered structure that gradually increases in diameter from the lower part to the upper part. At this time, 223 are inserted into the upper portion of the outer peripheral surface of the middle post 22 after being passed through by press-fitting.

According to this structure, the matching member 60 can be easily coupled to the middle post 22, and the engaging portion 223 is provided integrally with the middle post 22, so that the machining cost can be reduced.

As shown in FIG. 4, two flat surfaces 62 are formed on the outer circumferential surface of the matching member 60 so as to face each other.

The two flat surfaces 62 allow the separately provided equipment to easily grasp the matching member 60 to rotate the matching member 60.

The two flat surfaces 62 may be used as a reference point for recognizing the position of the cord protrusion 61. That is, when the equipment for rotating the matching member 60 contacts the two flat surfaces 62 and grasps the matching member 60, the cord protrusion 61 is constantly in contact with the center of the matching member 60 The position of the cord protrusion 61 can be easily recognized by the equipment for rotating the matching member 60 when the cord groove 113 and the cord protrusion 61 are to be matched with each other .

While the present invention has been described with reference to the accompanying drawings, it should be understood that various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention. And should be construed as falling within the scope of protection of the invention.

10: Bottom body
11: bottom housing
111: fastening part 112: bottom hollow
113: code groove 114: reference point
12: tube
121: Euro
13: gas injection hole
20: Middle body
21: Middle housing
211: middle hollow 212: spiral part
213:
22: Middle Post
221: corresponding middle hollow 222: middle O-ring member
223:
23: gas injection member
30: Top body
31: Top housing
311: corresponding spiral portion 312: top hollow
32: discharge member
321:
33: Top Post
331: Corresponding top hollow 332: Top o-
34: Check valve
341: open / close side 342: spring support
343: Valve spring
50: Lift unit
51: lifting post
511: Distributor
52: Elastic spring
60: matching member
61: Cord turning
62: Flat surface
70: sensing unit
71: Magnet
72: insertion groove
721: Floor
73: sensing member
731: sensing body 732: magnet sensor

Claims (5)

A cylindrical bottom housing 11 having an upper and a lower bottom hollow 112 and a code groove 113 having a specific pattern on an upper portion and a lower portion of the bottom housing 11, A tube 12 having an internal channel 121 communicating with the bottom hollow 112 and a plurality of gas injection holes 13 formed along the bottom periphery of the bottom hollow 112 of the bottom housing 11 A bottom body 10 fastened to a discharge port side of the fluid storage container through a fastening portion 111 of the bottom housing 11;
A cylindrical middle housing 21 having a vertically penetrating middle hollow 211 and a helical portion 212 formed on an inner circumferential surface of the upper hollow cylindrical portion 211 and a cylindrical hollow housing 21 connected to the lower portion of the middle housing 21, A middle post 22 having a corresponding middle hollow 221 communicating therewith and being inserted into the bottom hollow 112 of the bottom housing 11 and a middle post 22 mounted on the side of the middle housing 21, A middle body 20 including a gas injection member 23 for injecting a gas;
A top housing 31 having a corresponding spiral portion 311 for fastening with the spiral portion 212 of the middle housing 21 on the lower outer circumferential surface and a vertically penetrating top hollow 312 inside the top housing 31 And a corresponding tower top hollow 331 connected to the bottom of the tower housing 31 and in communication with the tower hollow 312. The top end of the top hollow 311, A top body (30) including a top post (33) into which a liquid (121) is inserted into a channel (121) of the tube (12); And
And an annular matching member (60) having a cord protrusion (61) formed to correspond to the cord groove (113) on a lower surface thereof and coupled to the middle post (22) of the middle body (20)
The matching member 60 loosely fits over the outer peripheral surface of the middle post 22 and is rotatably fitted in the middle post 22,
Wherein a coupling portion (223) for supporting an inner bottom edge of the matching member (60) is formed on an outer peripheral surface of the middle post (22).
The method according to claim 1,
The engaging portion 223 has a tapered structure with a diameter gradually increasing from the lower portion toward the upper portion,
Wherein the matching member (60) is inserted into the upper portion of the outer peripheral surface of the middle post (22) after the engaging portion (223) passes through the press fitting.
The method according to claim 1,
Wherein two matching surfaces (62) are formed on the outer circumferential surface of the matching member (60) so as to face each other in opposite directions.
4. The method according to any one of claims 1 to 3,
(223) having an inner flow hole (511) for insertion of the top post (33) and having a smaller diameter than the corresponding middle hollow (221) inserted in the corresponding middle hollow (221) of the middle post (22) (50) including a lifting post (51) exposed to the lower side of the middle post (22). And
And a sensing unit (70) for sensing a displacement of the lifting unit (50) with respect to the lifting post (51)

The sensing unit 70 includes an annular magnet 71 that is embedded in the upper end of the lifting post 51 of the lifting unit 50 and a lower end of the lifting post 51 of the lifting unit 50 at a side of the middle housing 21 of the middle body 20 An insertion groove 72 which is recessed toward the middle hollow 211 and has a bottom 721 and is inserted into the insertion groove 72 so as to be in close contact with the bottom 721 of the insertion groove 72, And the magnet 71 and the sensing member 73 are brought into non-contact with each other by the bottom 721 of the insertion groove 72,
The elevating unit 50 is fitted on the outer surface of the top post 33 of the top body 30 and is supported on the bottom surface of the top housing 31 and on the top surface of the magnet 71, (52). ≪ Desc / Clms Page number 13 >
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