KR-102963920-B1 - LOCKING APPARATUS OF COUPLER FOR FLUID TRANSFER AND COUPLER FOR FLUID TRANSFER INCLUDING THE SAME

KR102963920B1KR 102963920 B1KR102963920 B1KR 102963920B1KR-102963920-B1

Abstract

According to one embodiment of the present invention, a locking device for a fluid transfer coupler comprising a housing, a female coupler having a male coupler connection portion provided at the front end of the housing, and a male coupler inserted into the male coupler connection portion and coupled with the female coupler, wherein the device comprises a body portion having a cut surface formed by cutting a portion of a disc having a certain thickness, a rotating shaft provided on one surface of the body portion and inserted into the surface of the male coupler connection portion and rotatably fixed, and a lever provided at the center of the circumferential surface of the body portion opposite to the cut surface, wherein a plurality of locking grooves may be formed in the body portion into which a ball plunger provided in the male coupler connection portion is selectively inserted according to the rotation of the body portion.

Inventors

고병도
박재영
최경원
고준영

Assignees

(주)에스티아이

Dates

Publication Date: 20260512
Application Date: 20240702

Claims (15)

A locking device for a fluid transfer coupler comprising a housing, a female coupler having a male coupler connection portion provided at the front end of the housing, and a male coupler inserted into the male coupler connection portion and coupled with the female coupler, wherein A body portion having a cutting surface formed by cutting a portion of a disc having a certain thickness; A rotating shaft provided on one surface of the body portion and inserted into the surface of the male coupler connection portion to be rotatably fixed; and It includes a lever provided at the center of the circumferential surface of the body part opposite to the cutting surface, and A plurality of locking grooves are formed in the body portion, into which a ball plunger provided in the male coupler connection portion is selectively inserted according to the rotation of the body portion. A guide groove is formed in the body portion along the rotational direction, and A plurality of the locking grooves are arranged on the guide groove, and The above guide groove is a locking device for a fluid transfer coupler formed by being recessed with a predetermined width only in a portion along the circumferential direction around the above rotation axis.
In paragraph 1, The above locking grooves are locking devices for fluid transfer couplers arranged at 90° intervals around the rotation axis.
In paragraph 2, The above locking groove is a locking device for a fluid transfer coupler, each positioned at a center angle of 0°, 90°, and 180° with respect to the rotation axis.
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In paragraph 1, The above guide groove is a locking device for a fluid transfer coupler formed along a central angle of 180° with respect to the central axis of the rotation axis in the body portion.
In paragraph 1, A locking device for a fluid transfer coupler that is engaged inside the male coupler connection part, provided with a catch having a diameter larger than that of the rotating shaft at the end of the rotating shaft.
In paragraph 1, A locking device for a fluid transfer coupler, wherein the above-mentioned rotating shaft is formed on the lower side based on the direction in which it is rotatably inserted and fixed, and a contact guide surface is formed on the surface of the body part in a tapered manner toward the cutting surface to be in close contact with the stepped surface of the male coupler.
A female coupler having a housing, a male coupler connection portion provided at the front end of the housing, and a ball plunger provided at the male coupler connection portion; A male coupler inserted into the male coupler connection part and connected to the female coupler; A body portion having a cutting surface formed by cutting a portion of a disc having a certain thickness; A rotating shaft provided on one surface of the body portion and inserted into the surface of the male coupler connection portion to be rotatably fixed; and It includes a lever provided at the center of the circumferential surface of the body part opposite to the cutting surface, and A plurality of locking grooves are formed in the body portion, into which the ball plunger is selectively inserted according to the rotation of the body portion, and A guide groove is formed in the body portion along the rotational direction, and A plurality of the locking grooves are arranged on the guide groove, and The above guide groove is a locking device for a fluid transfer coupler formed by being recessed with a predetermined width only in a portion along the circumferential direction around the above rotation axis.
In Paragraph 9, The above locking grooves are fluid transfer couplers arranged at 90° intervals around the rotation axis.
In Paragraph 10, The above locking grooves are fluid transfer couplers respectively positioned at center angles of 0°, 90°, and 180° around the rotation axis.
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In Paragraph 9, The above guide groove is a fluid transfer coupler formed along a central angle of 180° with respect to the central axis of the rotation axis in the body portion.
In Paragraph 9, A fluid transfer coupler having a catch portion having a diameter larger than that of the rotating shaft at the end of the above-mentioned rotating shaft, which is hooked inside the male coupler connection portion.

Description

Locking apparatus of coupler for fluid transfer and coupler for fluid transfer including the same The present invention relates to a locking device for a fluid transfer coupler, and more specifically, to a locking device for a fluid transfer coupler used for transferring chemicals, having a structure that allows for a more complete insertion when inserting a male coupler into a female coupler so as not to create play, and a fluid transfer coupler including the same. In transporting and recovering various types of chemicals used in semiconductor or LCD processes, a hose for supply and recovery is connected between a tank truck and a storage tank to enable stable transfer of large volumes; through this hose, chemicals are supplied from the tank truck to the storage tank or recovered from the storage tank to the tank truck. At this time, a male coupler is installed on the tank truck hose and a female coupler on the storage tank hose, and then the male and female couplers are connected to form a chemical transfer pipeline. To meet this requirement, the female coupler, in particular, is molded from Teflon material to enhance safety. In order to prevent separation after the male coupler is inserted into the female coupler, such a fluid transfer coupler is equipped with a male coupler mounting lever (see Published Patent No. 10-2014-0011734). Thus, when the male coupler is inserted into the female coupler, the male coupler mounting lever engages the rear surface (stepped portion) of the male coupler, thereby performing a locking function to prevent the male coupler from being separated from the female coupler. However, since the aforementioned male coupler mounting lever was a type of locker or stopper that only performed the function of locking the male coupler so that it would not simply be pushed backward or separated, in order to operate it, the male coupler had to be in a state where it was fully inserted into the female coupler. If complete insertion is not achieved, the male coupler mounting lever interferes with the outer surface (non-stepped part) of the male coupler when rotating, restricting free rotation and causing a problem where the locking process is very cumbersome and difficult. FIG. 1 is a perspective view illustrating a coupler for fluid transfer according to one embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating the connected state of a fluid transfer coupler according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating the unfastened state of a fluid transfer coupler according to one embodiment of the present invention. FIG. 4 is an enlarged view of the fastening portion of a fluid transfer coupler according to one embodiment of the present invention. FIG. 5 is an exploded perspective view illustrating a locking device of a fluid transfer coupler according to one embodiment of the present invention. FIG. 6 is a perspective view illustrating a locking device of a fluid transfer coupler according to one embodiment of the present invention. FIG. 7 is a drawing illustrating that a locking device of a fluid transfer coupler according to one embodiment of the present invention has locked the connection of a male coupler. FIG. 8 is a drawing illustrating a locking device of a fluid transfer coupler according to one embodiment of the present invention coupled to a fluid transfer coupler. FIG. 9 is a drawing illustrating that a rotation axis is fixed at different angles while rotating according to an embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. In describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the present invention. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, componen