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US-12618487-B2 - Automatic liquid drain device

US12618487B2US 12618487 B2US12618487 B2US 12618487B2US-12618487-B2

Abstract

Proposed is an automatic liquid drain device including a body ( 10 ) having a water collection chamber ( 12 ) and configured such that an upper cap member ( 11 ) having a liquid inlet ( 13 ) is fastened to an upper portion of the water collection chamber ( 12 ), a buoyancy valve member ( 20 ) embedded to be vertically movable in the water collection chamber ( 12 ), having downward-inclined ribs ( 23 ) and a drop drain ( 24 ), and provided with a valve packing ( 25 ) protruding from a lower center thereof, a liquid pooling space ( 122 ) below the buoyancy valve member ( 20 ), and a drain emergency action means ( 30 ) provided with a drain nipple ( 31 ) having a vertical drain hole ( 32 ) whose upper end is exposed to the liquid pooling space ( 122 ), and an opening/closing nipple ( 34 ) fastened to a lower portion of the drain nipple ( 31 ) to open and close the vertical drain hole ( 32 ).

Inventors

  • Junbeom LEE
  • Chulhyun BAEK

Assignees

  • 2CD CO., LTD.

Dates

Publication Date
20260505
Application Date
20230322
Priority Date
20220322

Claims (4)

  1. 1 . An automatic liquid drain device, comprising: a body ( 10 ) having a water collection chamber ( 12 ) and configured such that an upper cap member ( 11 ) having a liquid inlet ( 13 ) is fastened to an upper portion of the water collection chamber ( 12 ); a buoyancy valve member ( 20 ) embedded to be vertically movable in the water collection chamber ( 12 ), the buoyancy valve member ( 20 ) having a plurality of downward-inclined ribs ( 23 ) provided in a circumferential direction at equal intervals and a drop drain ( 24 ), and being provided with a valve packing ( 25 ) protruding from a lower center thereof; a liquid pooling space ( 122 ) formed in a lower portion of the water collection chamber ( 12 ) below the buoyancy valve member ( 20 ); and a drain emergency action means ( 30 ) provided with a drain nipple ( 31 ) having a vertical drain hole ( 32 ) whose upper end is exposed to the liquid pooling space ( 122 ), and an opening/closing nipple ( 34 ) fastened to a lower portion of the drain nipple ( 31 ) to open and close the vertical drain hole ( 32 ), wherein the opening/closing nipple ( 34 ) has a conical protrusion wheel part ( 36 ) configured to enter and exit the vertical drain hole ( 32 ) at a lower center of a fastening hole ( 35 ), and a pair of side drain holes ( 37 ) is provided, one on each side of the conical protrusion wheel part ( 36 ) outside of the conical protrusion wheel part ( 36 ), the pair of side drain holes ( 37 ) being connected to a drain path below the conical protrusion wheel part ( 36 ), and wherein the pair of side drain holes are outside of the conical protrusion wheel part ( 36 ).
  2. 2 . The device of claim 1 , further comprising: a cover member ( 40 ) configured to surround the body ( 10 ) so that a separation space part ( 41 ) is provided outside the body ( 10 ), and to have a pressure fluid discharge hole ( 46 ) provided at a bottom of the cover member ( 40 ), wherein a cover upper part ( 42 ) of the cover member ( 40 ) is coupled to a fitting groove ( 17 ) formed in the upper cap member ( 11 ), and at upper and lower portions of a lower central hole ( 43 ) through which the drain nipple ( 31 ) passes, a spacer nut ( 44 ) and a pressure nut ( 45 ) are fastened to the drain nipple ( 31 ) so that a lower part of the cover member ( 40 ) is fixed.
  3. 3 . The device of claim 1 , wherein the conical protrusion wheel part ( 36 ) comprises a top portion facing the vertical drain hole ( 32 ) and having a cone shape and a bottom portion below the top portion, the bottom portion being a cylinder, and wherein the pair of side drain holes ( 37 ) are located outside of the bottom portion.
  4. 4 . The device of claim 1 , further comprising: a packing holder ( 26 ) detachably installed at a bottom of the buoyancy valve member ( 20 ) facing the liquid pooling space ( 122 ) and comprising an inverted cone-shaped mounting hole ( 27 ), wherein the valve packing ( 25 ) mounted within the inverted cone-shaped mounting hole ( 27 ), the valve packing ( 25 ) being inverted cone-shaped to correspond to an inverted cone-shape of the inverted cone-shaped mounting hole ( 27 ).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is the U.S. national stage of International Patent Application No. PCT/KR2023/003822, filed on Mar. 22, 2023 and entitled “AUTOMATIC LIQUID DRAIN DEVICE”, which claims priority to Korean Patent Application No. 10-2022-0035429 filed on Mar. 22, 2022 at the Korean Intellectual Property Office. The disclosure of the foregoing applications is incorporated herein by reference in its entirety. TECHNICAL FIELD The present disclosure relates to an automatic liquid drain device and, more particularly, to an automatic liquid drain device that improves the operational reliability of a buoyancy valve member for automatically discharging liquid, enables emergency action in the event of device failure, and ensures product safety. BACKGROUND ART As an example of related art, Korea Patent No. 10-1824456 (published Feb. 1, 2018) discloses an automatic liquid discharge device. However, the conventional technology described above has a problem in that the operational stability is significantly reduced since a float is greatly shaken left and right due to the impact force of liquid falling from a liquid inlet falling on the float, and the device has a complicated structure due to a valve rod at the bottom of the float, which causes an increase in manufacturing costs and weakens price competitiveness. DISCLOSURE Technical Problem The present disclosure is intended to solve the above problems occurring in the related art. An objective of the present disclosure is to provide an automatic liquid drain device with improved operational reliability of a buoyancy valve member for automatically discharging liquid. An objective of the present disclosure is to provide an automatic liquid drain device improved to enable emergency action in the event of device failure, and ensure safety. An objective of the present disclosure is to provide an automatic liquid drain device that reduces manufacturing costs and improves competitiveness by distributing a product with improved performance in terms of automatic liquid discharge at a cheaper price. Technical Solution In order to achieve the above mentioned objectives, there is provided an automatic liquid drain device including: a body having a water collection chamber and configured such that an upper cap member having a liquid inlet is fastened to an upper portion of the water collection chamber, a buoyancy valve member embedded to be vertically movable in the water collection chamber, having a plurality of downward-inclined ribs provided in a circumferential direction at equal intervals and a drop drain, and provided with a valve packing protruding from a lower center thereof, a liquid pooling space formed in a lower portion of the water collection chamber below the buoyancy valve member, and a drain emergency action means provided with a drain nipple having a vertical drain hole whose upper end is exposed to the liquid pooling space, and an opening/closing nipple fastened to a lower portion of the drain nipple to open and close the vertical drain hole. The body and the buoyancy valve member may be configured in an inverted cone shape with a diameter that is wide at the top and narrows toward the bottom, at the lower portion of the water collection chamber of the body, an inverted conical inclined inner surface and outer ends of the downward-inclined ribs of the buoyancy valve member may be aligned, and the liquid pooling space may be provided in the water collection chamber below the buoyancy valve member at the point where the inverted conical inclined inner surface and the outer ends of the downward-inclined ribs are aligned. The opening/closing nipple may have a conical protrusion wheel part that enters and exits the vertical drain hole at a lower center of a fastening hole, and a pair of side drain holes may be provided, one on each side of the conical protrusion wheel part. The device may further include: a cover member configured to surround the body so that a separation space part is provided outside the body, and to have a pressure fluid discharge hole provided at a bottom of the cover member, wherein a cover upper part of the cover member may be coupled to a fitting groove formed in the upper cap member, and at upper and lower portions of a lower central hole through which the drain nipple passes, a spacer nut and a pressure nut may be fastened to the drain nipple so that a lower part of the cover member is fixed. Advantageous Effects According to the present disclosure, overall operational reliability can be greatly improved since up and down movements of a buoyancy valve member for automatically discharging liquid are performed reliably and a valve packing is prevented from coming off and can be replaced when worn. In addition, according to the present disclosure, product performance can be greatly improved by preventing air (compressed air) leakage by means of an emergency action means in the event of device failure, and pro