KR20190052527A - Apparatus for coupling and apparatus for processing molten material using the same - Google Patents

Abstract

The present invention relates to a coupling apparatus and a facility for treating molten materials using the same. According to the present invention, the coupling apparatus comprises: a coupling main frame which has an opening on a front end unit; a ball member inserted into the coupling main frame to freely protrude from the inner and outer circumferential surfaces of the front end unit of the coupling main frame; a ring member supported by the outer circumferential surface of the front end unit to move forward and backward in an extending direction of the opening placed on the front end unit of the coupling main frame and to constrain any protrusion by the ball member by moving forward and backward; an elastic member placed on the outer circumferential surface of the coupling main frame to elastically support the ring member in an extended direction of the opening placed on the front end unit; and a gripping unit formed to pull the ring member by using a user′s grasping power applied to a rear end unit side of the coupling main frame. According to the present invention, the coupling apparatus is able to easily fasten and separate the coupling main frame with or from an injection hole placed on a container.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coupling device and a melt processing apparatus using the coupling device.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling apparatus and a melt processing apparatus using the same, and more particularly, to a coupling apparatus and a melt processing apparatus using the same.

In general, molten steel whose composition and temperature are controlled in the steelmaking plant is transferred to a continuous casting facility in the ladle and cast into the casting. For example, when the refining and the secondary refining are completed in the steelmaking facility, refined molten steel is introduced into the ladle. Thereafter, the ladle is transferred to the continuous casting equipment and placed on the ladle turret, the nozzle is mounted on the ladle opening, and the ladle is opened to supply molten steel contained in the ladle to the turndisse. When the molten steel level of the tundish is appropriately adjusted, the ladle of the tundish is opened, the molten steel is injected into the mold through the immersion nozzle connected to the ladle, and the continuous casting of the cast is started.

During continuous casting, the amount of molten steel to be tundled in the ladle is controlled by using a cassette provided at the lower part of the ladle, in order to keep the molten steel level of the tundish at a desired range. For example, the hydraulic cylinder of the cassette actuates a slide gate attached to the ladle's ladder to control the amount of ladle supplied from the ladle to the turn-dish.

The hydraulic cylinder is connected to a hydraulic hose for receiving hydraulic oil, and the inlet of the hydraulic hose is fixed to the outer peripheral surface of the ladle. The ladle containing high-temperature molten steel at a temperature of about 1600 ° C is conveyed to the continuous casting facility, the hydraulic oil supply hose is connected to the inlet of the hydraulic hose, and several hundred bar of hydraulic oil is supplied to the hydraulic cylinder. When the molten steel in the ladle is finished, remove the hydraulic oil supply hose from the inlet of the hydraulic hose before replacing the ladle.

When the hydraulic oil supply hose is connected to and disconnected from the injection port of the hydraulic hose, the operator moves to the ladle position, so the work must be performed quickly to ensure safety. However, the coupling of the hydraulic hose or the coupling of the hydraulic oil supply hose is likely to be exposed to the hydraulic oil, and therefore, the hydraulic oil is often present. In addition, referring to the following Patent Document 1 and FIGS. 1 (a) and 1 (b), a conventional coupling is constructed so as to grasp the outer periphery of the coupling and then pull it out to release the coupling tightened to the inlet of the hydraulic hose Structure.

Therefore, if hydraulic oil is present in the coupling, it is difficult to handle by the lubricating action. In this case, the operator can not finish the work quickly, so that it is exposed to the high temperature of the ladle, the excessive impact on the coupling, the impact on the ladle of high temperature, the poor coupling of the coupling, .

Techniques as a background of the present invention are listed in the following patent documents.

KR 20-2000-0007702 U

The present invention provides a coupling device capable of releasing the tightening with a simple operation.

The present invention provides a coupling device capable of amplifying a force.

The present invention provides a coupling device that is easy to fasten and separate, and a melt processing apparatus using the coupling device.

A coupling device according to an embodiment of the present invention includes: a coupling body having an opening at a front end thereof; A ball member inserted into the coupling body so as to protrude in a radial direction of the opening from the inner and outer peripheral surfaces of the front end; A ring member supported on an outer circumferential surface of the front end portion so as to be able to move forward and backward in the extending direction of the opening and to intermittently project the projection of the ball member by the forward and backward movement; An elastic member disposed on an outer circumferential surface of the coupling body to elastically support the ring member in an extending direction of the opening; And a grip unit coupled to the ring member and the rear end so as to pull the ring member using a force applied to the rear end side of the coupling body.

Wherein the gripping unit includes: an operation arm extending in the extending direction of the opening, one side fixed to the outer peripheral surface of the ring member and the other side slidably supported on the coupling body; And an operation handle which is connected to the other side of the operation arm so as to be pivoted about a direction intersecting the extending direction of the opening and which pulls the operation arm by the pivotal rotation.

The gripping unit includes an operating plate protruding from an outer circumferential surface of the ring member; And a fixing plate which is spaced apart from a rear side of the actuating plate and protrudes from an outer circumferential surface of the coupling body, wherein one end of the actuating arm is fixed to the actuating plate and the other end thereof is slidable .

The elastic member is provided on the outer circumferential surface of the operation arm between the operation plate and the fixation plate, and can elastically support the operation plate and the fixation plate.

Wherein the operation arms are spaced apart from each other at both sides of the rear end portion and the gripping unit includes a hinge shaft spaced apart from the rear end portion and connecting the other end portions of the plurality of operation arms and supported by the operation handle .

The operation handle includes a lever body extending in the direction of extension of the opening and having a front end connected to the other side of the operation arm; A protrusion protruding between a front end and a rear end of the lever body; And a lever head extending downwardly inclined from the protrusion toward the other side of the operation arm and contacting the fixing plate protruding from the outer circumferential surface of the coupling body at the rear of the front end.

The end of the lever head may be located in front of the front end of the lever body.

A hydraulic fluid supply hose is mounted on a rear end of the coupling body, the opening is formed to allow an injection port of the hydraulic hose to be inserted, and the outer peripheral surface of the injection port is directly or indirectly pressed by the ball member, The injection port can be fixed.

A melt processing apparatus according to an embodiment of the present invention includes: a container formed to be capable of receiving a melt; An inlet disposed at one side of the vessel and having a passage through which the fluid passes; A coupling device formed so that a front end portion thereof can be fastened to the injection port; And a fluid supply unit connected to a rear end of the coupling device, wherein the coupling device has a grip unit formed to adjust a fastened state of the front end using a force applied to the rear end.

A cassette mounted on the melt outlet of the container to regulate opening and closing; And a fluid injection unit connecting the cassette and the injection port, wherein the fluid is supplied from the fluid supply unit to the fluid injection unit through the coupling device to operate the cassette.

The coupling device comprising: a coupling body extending toward the injection port; An opening extending through the front end of the coupling body to the rear end so that the injection port can be inserted; A ball member inserted into a front end portion of the coupling body and freely protruding from the inner and outer peripheral surfaces of the front end portion in a radial direction of the opening; A ring member supported on the outer peripheral surface of the front end portion so as to be movable forward and backward in the extending direction of the opening and interlocked with the grip unit; And an elastic member disposed on an outer circumferential surface of the front end so as to elastically support the forward and backward movement of the ring member. The protrusion of the ball member can be interrupted by moving forward and backward while the ring member is interlocked with the operation of the gripping unit.

The gripping unit can be connected to the ring member and the coupling body so as to pull the ring member backward by using the grip force of the user applied to the rear end side of the coupling body.

According to the embodiment of the present invention, by using the gripping unit to which the lever structure is applied, the operator (or " user ") pulls the ring member backward only by a simple operation of holding the coupling body while pressing the gripping unit, Can be released. Thus, tightening of the coupling body with respect to the injection port of the hydraulic hose can be quickly released.

At this time, since the grip unit is a lever structure, the ring member can be pulled with a force larger than the grip force of the operator. In other words, since the gripping unit amplifies the force applied by the operator and transmits the force to the ring member surrounding the front end portion of the coupling body, the tightening of the coupling body can be easily released.

Therefore, it is easy and fast to fasten and separate the coupling device to the injection port of the hose. Especially, the operator can easily and quickly work even though the force is less than the conventional one, and various accidents can be prevented.

For example, when applied to a ladle of a continuous casting facility, when the hydraulic oil supply hose is connected to and disconnected from the hydraulic hose inlet of the ladle containing hot molten steel, even if the coupling device is contaminated with hydraulic oil, the handling of the operator is not hindered, Can be performed quickly and easily. Therefore, the burden on the operator is reduced, and the occurrence of an accident can be prevented.

1 is a photograph of a conventional coupling device.
2 is a schematic view of a coupling device according to an embodiment of the present invention.
3 is a side view of a coupling body according to an embodiment of the present invention.
4 is a cross-sectional side view of a coupling body according to an embodiment of the present invention.
5 is a cross-sectional side view of the coupling body according to the embodiment of the present invention.
6 is an exploded perspective view of a grip unit according to an embodiment of the present invention.
7 is a first state view of a coupling device according to an embodiment of the present invention.
8 is a second state diagram of a coupling device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various forms. It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS The drawings may be exaggerated for purposes of describing embodiments of the present invention, wherein like reference numerals refer to like elements throughout.

2 is a schematic view showing a coupling device according to an embodiment of the present invention. FIG. 3 is a side view showing a coupling body of a coupling device according to an embodiment of the present invention, and FIG. 4 is a cross-sectional side view of the coupling device of the coupling device according to the embodiment of the present invention, And FIG. 5 is an engaging side sectional view showing a coupling body of the coupling device according to the embodiment of the present invention. 3 to 5, the illustration of the gripping unit is omitted so that the structure can be seen clearly. FIG. 6 is an exploded perspective view illustrating a gripping unit of a coupling device according to an embodiment of the present invention. FIG. 7 is an exploded perspective view illustrating a gripping unit of a coupling device according to an embodiment of the present invention. FIG. 8 is a second state diagram showing a state in which the gripping unit of the coupling device according to the embodiment of the present invention is restored. FIG.

The coupling device 200 according to the embodiment of the present invention is applied to the hydraulic supply structure in the cassette (not shown) of the ladle 10 which transports the molten steel through the steelmaking plant and the continuous casting facility of the steelworks, Even if the apparatus 200 is contaminated, the grip unit 250 can be easily fastened and detached to the inlet 11 of the hydraulic hose connected to the cassette. Of course, the embodiments of the present invention can be applied to various coupling structures for fluids in various industrial fields.

2, the hydraulic hose provided in the ladle 10 and its injection port 11 will be described. First, the ladle 10 is provided with a ladder (not shown) at its lower portion, and a cassette is provided by wrapping the ladle 10 at the lower portion of the ladle 10 in order to adjust the amount of molten steel introduced and discharged. The cassette actuates the hydraulic cylinder to actuate the slide gate of the ramp so that the opening of the ramp is controlled. A hydraulic hose is connected to the cassette, and the injection port (11) of the hydraulic hose is fixed to the lower part of the outer peripheral surface of the ladle (11).

When the ladle 10 is transported to the continuous casting equipment and placed in the ladle turret (not shown), a hydraulic oil supply hose (not shown) is connected to the injection port 11, then hydraulic oil L is supplied, The molten steel starts to be cast. After the supply of molten steel ends, the supply of hydraulic oil (L) is interrupted, and then the hydraulic oil supply hose is separated from the injection port (11). In this way, the injection port 11 of the hydraulic hose and the hydraulic oil supply hose are not always connected, but should be easily detachable from each other. Accordingly, the coupling device 200 according to the embodiment of the present invention can be provided in the hydraulic oil supply hose, and the hydraulic oil supply hose can be connected to the injection port while being detachably coupled to the injection port.

2 through 6, the coupling device 200 according to the embodiment of the present invention is a coupling device 200 detachably fastened to the outer periphery of the injection port 11, in which the injection port 11 is detachable A coupling body 210 having an opening H in the front end portion 215 to be inserted into the front end portion 215 so as to be freely inserted in the radial direction r of the opening H on the inner and outer peripheral surfaces of the front end portion 215, The ball member 220 inserted into the main body 210 is supported on the outer peripheral surface of the front end portion 215 so as to be able to move back and forth in the extending direction h of the opening H, An elastic member 240 disposed on the outer peripheral surface of the coupling body 210 to elastically support the ring member 230 in the extension direction h of the opening H, The ring member 230 and the rear end portion 211 are formed so as to be able to pull the ring member 230 using a force applied to the rear end portion 211 side of the main body 210, It comprises a gripping unit (250) that is linked to the ring body 210. The The gripping unit 250 is linked to the ring member 230 and the rear end 211 or to the ring member 230 and the coupling body 210. [

On the other hand, the force applied to the rear end portion 211 may be various other than the grip force of the user. For example, the force applied to the rear end portion 211 may include a tightening by a robot arm or a force for tightening with a hand tool such as a wrench.

In the following description of the structure, the front means the direction toward the injection port 11, and the rear means the opposite direction, in the extending direction of the opening H. In other words, the forward direction is a direction approaching the injection port 11, and the rearward direction is a direction away from the injection port 11.

The injection port 11 is installed at a predetermined position on the outer circumferential surface of the ladle 10 and can be fixed in position. The injection port 11 includes a nipple 11a protruding from the outer circumferential surface of the ladle 10, a retaining ring 11b formed around the outer circumferential surface of the nipple 11a, a ring 11b spaced from the outer circumferential surface side of the ladle 10 from the retaining ring 11b And a support ring 11c formed around the outer peripheral surface of the nipple 11a.

The outer diameter of the nipple 11a may be smaller than the inner diameter of the front region of the opening H and may be equal to the inner diameter of the rear region of the opening H. [ The protruding height of the stationary ring 11b can be formed by the difference between the inner diameter of the front region of the opening H and the outer diameter of the nipple 11a. Here, the front region of the opening H means a predetermined region into which the ball member 220 is inserted, and the rear region of the opening H means the remaining region of the opening H excluding the front region.

When the nipple 11a is inserted into the front region of the opening H and the front end portion 215 is locked by moving the ring member 230 forward, the ball member 220 contacts the ring member 230, H, the projections are interrupted. The ball member 220 is coupled to the stationary ring 11b so that the injection port 11 and the coupling body 210 can be coupled.

A hydraulic oil supply hose (not shown) may be mounted on the rear end portion 211 of the coupling body 210, and the hydraulic oil supply hose may communicate with the opening H. When the hydraulic oil supply hose supplies the hydraulic oil L to the opening H, the hydraulic oil L is supplied to the injection port 11 and the hydraulic oil flows into the hydraulic hose (not shown) connected to the injection port 11, Can be supplied.

When the front end 215 is opened by pulling the ring member 230 backward using the grip unit 250, the pressing of the ball member 220 by the ring member 230 is released, H, the engagement between the ball member 220 and the stationary ring 11b is released. At this time, the coupling main body 210 can be pulled backward to separate the nipple 11a from the opening H.

The coupling body 210 may be formed to facilitate handling of the user. The coupling body 210 is formed as an integral type or a separate type, and in this embodiment, the coupling body 210 is formed as a separate type.

The coupling body 210 is formed in a pipe shape and is connected to the hydraulic oil supply hose and is formed as a rear end portion 211 and a nut extending to a length that the user can grasp, A first body 212 that surrounds the outer circumferential surface of the rear end portion 211 of the first body 212, a connection portion 213 that is formed in a pipe shape and has threads on an outer circumferential surface thereof and protrudes forward from the first body 212, A second body 214 disposed in front of the connection part 213 and adapted to be screwed to the connection part 213 and a second body 214 coupled to the second body 214 in front of the second body 214 And may include a front end 215 formed in a pipe shape and provided with an opening H. [ The rear end 211, the first body 212, the connecting portion 213, the second body 214 and the front end portion 215 are aligned and joined to each other in the extending direction h of the opening H, H may extend in the extending direction and may be provided along the central axes thereof to the rear end portion 211. At this time, the outer diameter of the front end 215 may be larger than the outer diameter of the injection port 11 and smaller than the outer diameter of the second body 214. The shape of the coupling body 210 is not particularly limited to this. The ball member 220 and the ring member 230 may be used to deform the outer periphery of the injection port 11 into various structures.

The opening H is formed such that an injection port 11 of a hydraulic hose (not shown) provided in the ladle 10 can be inserted. The inner diameter of the front region is larger than the outer diameter of the injection port 11, And may be the same as the outer diameter of the injection port 11. A boundary between the front region and the rear region is formed on the inner peripheral surface of the front end portion 215 and the injection port 11 can be brought into contact with the edge of the boundary.

The ball member 220 is radially disposed about the extending direction h of the opening H and is disposed radially in the radial direction r of the opening H in the forward region of the front end portion 215 Can be inserted through. The diameter of the ball member 220 may be larger than the thickness of the front region of the front end portion 215 so that the ball member 220 can be brought into contact with the fixing ring 11b of the injection port 11 inserted into the front region of the opening H. [ A plurality of annular grooves for receiving the ball member 220 may be formed in the front end portion 215. The annular groove is opened in the radial direction r of the opening H and the ball member 220 is received in the annular groove so that the radial direction r of the opening H on the inner and outer peripheral surfaces of the front end portion 215 As shown in Fig.

The outer peripheral surface of the injection port 11 can be directly or indirectly pressed by the ball member 220 to fix the outer peripheral surface of the injection port 11 to the inner peripheral surface of the opening H, The motion can be constrained.

The ring member 230 is supported on the outer circumferential surface of the front end portion 215 and has a length shorter than that of the front end portion 215 so that the ball member 220 can be completely released from the outer opening of the annular groove into which the ball member 220 is inserted . The ring member 230 is formed so as to surround the outer peripheral surface of the front end portion 215 and can move back and forth in the extending direction h of the opening H. [ The ring member 230 can intercept the protrusion of the ball member 220 by forward and backward movement.

When the ring member 230 is retracted and retreated from the ball member 220 side, the outer opening formed at the outer peripheral surface side of the front end portion 215 among the openings of the annular groove in which the ball member 220 is accommodated may be opened. This is referred to as opening of the front end portion 215 by the ring member 230. When the ring member 230 advances and advances toward the ball member 220 side, the outer opening of the annular groove is closed so that the ball member 220 contacts the inner circumferential surface of the ring member 230, Lt; / RTI > This is referred to as locking of the front end 215 by the ring member 230. When the front end portion 215 is locked with the injection port 11 inserted into the opening H, the fixing member 11b is restrained by the ball member 220 to prevent the injection port 11 from being separated, (11) and the coupling body (210). When the front end 215 is opened with the injection port 11 inserted into the opening H, the restraint of the fixing ring 11b by the ball member 220 is released and the injection port 11 and the coupling body 210 Is released. At this time, as the ball member 220 moves freely in the annular groove, when the injection port 11 is released from the opening H, the fixing ring 11b can smoothly escape without restraint. When the injection port 11 is completely disengaged from the opening H, it is assumed that the injection port 11 and the coupling main body 210 are separated.

The elastic member 240 is disposed on the outer circumferential surface of the coupling body 210 so as to elastically support the ring member 230 in the extending direction h of the opening H, In the embodiment, a spring disposed on the outer periphery of the operation arm 253 to be described later is exemplified as the elastic member 240.

The gripping unit 250 is connected to the ring member 230 and the rear end portion 211 so as to be able to pull the ring member 230 using the user's gripping force applied to the rear end portion 211 side of the coupling body 210 . That is, the user can simultaneously unlock the front end 215 by pulling the ring member 230 by operating the grasping unit 250 at the same time while holding the rear end 211, The coupling between the injection port 11 and the coupling body 210 can be released as much as possible even in a slippery condition. In view of the operation structure of the gripping unit 250, since the gripping force can be amplified as the structure of the lever, the user can unlock the gripping unit 250 with greater force simply by holding the gripping unit 250 lightly. Thus, the fatigue of the user can be remarkably reduced.

The gripping unit 250 includes an operation plate 251 protruding from the outer circumferential surface of the ring member 230, a fixing plate 252 protruding from the outer circumferential surface of the first body 212, h and one side of which is fixed to the outer circumferential surface of the ring member 230 through the operation plate 251 and the other side of which is slidably supported by the coupling body 210 through the fixing plate 252 253 and the other side of the actuating arm 253 so as to be pivoted about a direction (width direction) intersecting both the extending direction h and the radial direction r of the opening H, And an operation handle 256 for pulling the operation arm 253 backward.

The gripping unit 250 may have a structure in which the actuating plate 251 and the fixing plate 252 are not provided and the actuating arm 253 is directly coupled or connected to the ring member 230 and the coupling body 210, The inner diameter of each part of the ring member 230 and the coupling body 210 is appropriately adjusted so that the outer diameter of the ring member 230 is relatively increased and the outer diameter of the first body 212 of the coupling body 210 The outer diameter of the remaining portion of the coupling body 210 excluding the first body 212 is set to be smaller than the outer diameter of the ring member 230 It is possible to secure a margin in which the operation arm 253 can be directly mounted or penetrated. That is, the mounting structure of the operation arm 253 of the grip unit 250 may vary. Hereinafter, the structure of the embodiment will be described.

A plurality of operation arms 253 are spaced apart on both sides in the width direction around the rear end portion 211. Each of the operation arms 253 is bolted to one side of the operation arm 251 by a coupling member 254, Each of the other side, e.g., the rear end, can be slidably supported through the fixing plate 252.

The elastic member 240 is provided on the outer circumferential surface of the actuating arm 253 between the actuating plate 251 and the fixed plate 252. Both ends of the elastic member 240 are in contact with the actuating plate 251 and the fixed plate 252, And the fixing plate 252 can be elastically supported. Of course, the elastic member 240 may be installed to surround the outer circumferential surface of the coupling body 210 between the actuating plate 251 and the fixed plate 252.

The gripping unit 250 further includes a hinge shaft 255 spaced from the rear end 211 and connecting the other ends of the plurality of actuating arms 253 such that the hinge shaft 255 is centered at the rear end 211 And both ends thereof extend downward and can be connected to the other ends of the plurality of operation arms 253. [ The operation handle 256 can be supported on the hinge shaft 255. [ The operation handle 256 includes a lever body 256a extending in the extending direction h of the opening H and having a front end connected to the other side of the actuating arm 253 through a hinge shaft 255, A protrusion 256b protruding to both sides in the width direction between the front end and the rear end of the operation arm 253 and a protrusion 256b extending from the rear end of the front end portion 215 toward the other side of the operation arm 253, And a lever head 256d that is in contact with a fixing plate 252 protruding from the outer circumferential surface of the body 1. At this time, the end of the lever head 256d may be positioned forward of the front end of the lever body 256a.

In this structure, the lever head 256d and the lever body 256a have a lever structure. When the actuating handle 256 rotates about the hinge axis 255, the lever head 256d advances or retracts, A force is applied to the actuating plate 252 so that the actuating arm 253 moves back and forth to push or pull the actuating plate 251 to lock or open the front end 251.

The operation of the coupling unit 200 formed as described above by the grasping unit 250 will be described below.

7, when the user's hand (not shown) grasps the rear end 211 and the operating handle 256 is pushed toward the rear end portion 211, the operating arm 253 retracts, The front end portion 215 is opened. The coupling member 210 is inserted from the injection port 11 only by slightly pulling the coupling main body 210 backward so that the coupling member 210 can be easily coupled to the coupling member 210. [ Can be separated.

8, when the injection port 11 is inserted into the coupling body 210, the user's hand stops holding the rear end 211 and the operation handle 256, When the operating handle 256 is released, the elastic member 240 applies a restoring force to lift the operating handle 256 and to advance the operating arm 253 forward. The ring member 230 moves forward to lock the front end portion 215 and the ball member 220 presses and restrains the outer circumferential surface of the injection port 11 directly or indirectly so that the injection port 11 and the coupling body 210 can be completed.

2 to 8, a melt processing apparatus using the coupling device 200 according to the embodiment of the present invention will be described below. Herein, the description overlapping with the description of the coupling device according to the embodiment of the present invention will be omitted or briefly described.

The melt processing apparatus according to an embodiment of the present invention includes a container formed to accommodate a melt, an injection port 11 disposed at one side of the container and having a passage through which the fluid passes, a front end portion 215, And a fluid supply unit (not shown) connected to the rear end 211 of the coupling device 200. The coupling device 200 is configured to be coupled to the coupling device 200,

The coupling device 200 may include a grip unit 200 configured to adjust a locked state of the front end portion 215, for example, a locked state and an open state, using a force applied to the rear end portion 211 of the coupling device 200 250).

The melt may comprise molten steel, the vessel may comprise ladle 10, and the fluid may comprise hydraulic oil. Of course, the melt may include various molten metals or non-metals, etc., and the container may be any container capable of accommodating the melt, and the fluid may be a variety of fluids.

In addition, the melt processing facility may include a cassette (not shown) mounted on the melt outlet of the vessel, for example, a lumen to regulate opening and closing, and a fluid injection portion, for example, a hydraulic hose connecting the cassette and the injection port 11.

The melt processing apparatus can operate the hydraulic cylinder of the cassette by supplying fluid such as hydraulic fluid from a fluid supply unit (not shown) such as a hydraulic fluid supply hose to the fluid injection unit through the coupling device 200, The slide gate can be operated to adjust the opening of the louver.

The coupling device 200 includes a coupling body 210 that extends toward the injection port 11 and a rear end portion that penetrates the front end portion 215 of the coupling body 210 so that the injection port 11 can be inserted, A ball member 220 inserted into the front end portion 215 of the coupling body 210 and freely protruding from the inner and outer peripheral surfaces of the front end portion 215 in the radial direction r of the opening H, A ring member 230 supported in such a manner that it can be moved forward and backward in the extending direction h of the opening H to the outer peripheral surface of the front end portion 215 and linked with the gripping unit 250, An elastic member 240 disposed on the outer circumferential surface of the rear end portion 212 so as to elastically support the ring member 230 so that the ring member 230 can be pulled backward using the grip force of the user applied to the rear end side of the coupling body 210 A ring member 230, and a gripping unit 250 coupled to the coupling body 210. The ring member 230 is interlocked by the operation of the grasping unit 250 and can move back and forth to intercept the protrusion of the ball member 220. Since the coupling device 200 has been described in detail above, the following description will be omitted.

The above-described embodiments of the present invention are for the explanation of the present invention and are not intended to limit the present invention. It should be noted that the configurations and the methods disclosed in the above embodiments of the present invention may be modified into various forms by combining or intersecting with each other, and such modifications are also within the scope of the present invention. That is, the present invention may be embodied in various forms within the scope of the claims and equivalents thereof, and it is possible for the technician skilled in the art to make various embodiments within the scope of the technical idea of the present invention. .

10: Ladle 11:
200: coupling device 210: coupling body
211: Hydraulic oil supply hose 220: Ball member
230: ring member 240: elastic member
250: grip unit 256: operation handle

Claims (12)

A coupling body having an opening at a front end thereof;
A ball member inserted into the coupling body so as to protrude in a radial direction of the opening from the inner and outer peripheral surfaces of the front end;
A ring member supported on an outer circumferential surface of the front end portion so as to be able to move forward and backward in the extending direction of the opening and to intermittently project the projection of the ball member by the forward and backward movement;
An elastic member disposed on an outer circumferential surface of the coupling body to elastically support the ring member in an extending direction of the opening; And
And a grasping unit connected to the ring member and the rear end so as to pull the ring member using a force applied to the rear end side of the coupling body. The method according to claim 1,
The gripping unit includes:
An operating arm extending in the extending direction of the opening and having one side fixed to the outer peripheral surface of the ring member and the other side slidably supported on the coupling body; And
And an operation handle that is connected to the other side of the operation arm so as to be rotated about a direction intersecting the extending direction of the opening and pulls the operation arm by the rotation of the shaft. The method of claim 2,
The gripping unit includes:
An operating plate protruding from an outer circumferential surface of the ring member;
And a fixing plate spaced rearward from the operation plate and protruding from an outer circumferential surface of the coupling body,
Wherein one end of the operation arm is fixed to the operation plate and the other end is slidably supported through the fixing plate. The method of claim 3,
Wherein the elastic member is provided on an outer circumferential surface of the operation arm between the actuating plate and the fixed plate and elastically supports the actuating plate and the fixed plate. The method of claim 2,
A plurality of the operation arms are disposed on both sides of the rear end portion,
The gripping unit includes:
And a hinge shaft spaced apart from the rear end, connecting the other ends of the plurality of actuating arms and supporting the actuating handle. The method of claim 2,
The operating handle
A lever body extending in the extending direction of the opening and having a front end connected to the other side of the operation arm;
A protrusion protruding between a front end and a rear end of the lever body;
And a lever head extending downwardly inclined from the protrusion toward the other side of the operation arm and contacting a fixing plate protruding from an outer circumferential surface of the coupling body at a rear side of the front end portion. The method of claim 6,
And an end of the lever head is located forward of the front end of the lever body. The method according to claim 1,
A hydraulic oil supply hose is mounted at the rear end of the coupling body,
The opening is formed so that an inlet of the hydraulic hose can be inserted,
Wherein the injection port is directly or indirectly pressurized by an outer peripheral surface of the injection port to fix the injection port to the inner peripheral surface of the opening. A container formed to receive the melt;
An inlet disposed at one side of the vessel and having a passage through which the fluid passes;
A coupling device formed so that a front end portion thereof can be fastened to the injection port;
And a fluid supply part connected to a rear end of the coupling device,
Wherein the coupling device is provided with a gripping unit formed so as to adjust the fastening state of the front end portion by using a force applied to the rear end portion side. The method of claim 9,
A cassette mounted on the melt outlet of the container to regulate opening and closing; And
And a fluid injection unit connecting the cassette and the injection port,
And a fluid is supplied from the fluid supply unit to the fluid injection unit through the coupling device to operate the cassette. The method of claim 9,
The coupling device comprises:
A coupling body extending toward the injection port;
An opening extending through the front end of the coupling body to the rear end so that the injection port can be inserted;
A ball member inserted into a front end portion of the coupling body and freely protruding from the inner and outer peripheral surfaces of the front end portion in a radial direction of the opening;
A ring member supported on the outer peripheral surface of the front end portion so as to be movable forward and backward in the extending direction of the opening and interlocked with the grip unit;
And an elastic member disposed on an outer circumferential surface of the rear end portion to elastically support the forward and backward movement of the ring member,
And the ring member is interlocked by the operation of the gripping unit so as to move forward and backward to intermittently project the protrusion of the ball member. The method of claim 11,
Wherein the gripping unit is connected to the ring member and the coupling body so that the ringing member can be pulled backward by utilizing the grip force of the user applied to the rear end side of the coupling body.

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