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EP-4737778-A1 - FLANGE MEMBER, VALVE, LIQUID BAG, AND CONTAINER

EP4737778A1EP 4737778 A1EP4737778 A1EP 4737778A1EP-4737778-A1

Abstract

The present application relates to a flange member, a valve, a liquid bag, and a container. The flange member (24) comprises a tube body (241) and a flange plate (242), and a first passage (2411) runs through the inside of the tube body (241), the two ends of the first passage (2411) being respectively a first inlet end (2412) and a first outlet end (2413), the inner wall of the tube body (241) having an annular flange (2414) extending into the first passage (2411), and the annular flange (2414) being closer to the first outlet end (2413). The tube body (241) extends through the flange plate (242) in the axial direction of the flange plate (242) and is fixedly connected to the flange plate (242), and the flange plate (242) is closer to the first inlet end (2412). The flange member can reduce the pulling force on the liquid bag at the edges of the flange member, thereby reducing the probability of damage to the liquid bag due to the pulling force.

Inventors

  • FANG, ZHENGWEI

Assignees

  • Horen Cortp Co., Ltd.

Dates

Publication Date
20260506
Application Date
20240625

Claims (13)

  1. A flangemember, comprising: a tube body, which has a first passage extending therethrough, two ends of the first passage are respectively a first inlet end and a first outlet end, and an inner wall of the tube body has an annular flange extending into the first passage, the annular flange is closer to the first outlet end; and a flange plate; wherein the tube body extends through the flange plate in an axial direction of the flange plate and is fixedly connected to the flange plate, and the flange plate is closer to the first inlet end.
  2. The flange member according to claim 1, wherein the inner wall of the tube body is provided with an inwardly concave snapping groove or an outwardly convex snapping portion, and the snapping groove or the snapping portion is located between the first inlet end and the annular flange.
  3. The flange member according to claim 1, wherein the annular flange is provided with an annular recess axially recessed along the first passage, and an opening side of the annular recess faces the first inlet end.
  4. The flange member according to claim 1, wherein an outer end surface of the flange plate is flush with an end surface of the first inlet end, and an outer end surface of the annular flange is flush with an end surface of the first outlet end.
  5. A valve, comprising: a valve body, which has a valve cavity, an inlet portion, and an outlet portion, the inlet portion has a second inlet passage extending therethrough and communicating with the valve cavity, and the outlet portion has a second outlet passage extending therethrough and communicating with the valve cavity; a valve core, which is movably provided in the valve cavity; a driving member, which extends through the valve body and drives the valve core to open or close the valve cavity; a flange member, comprising a tube body and a flange plate, wherein the tube body has a first passage extending therethrough, two ends of the first passage are respectively a first inlet end and a first outlet end, and an inner wall of the tube body has an annular flange extending into the first passage, the annular flange is closer to the first outlet end; the tube body extends through the flange plate in an axial direction of the flange plate and is fixedly connected to the flange plate, and the flange plate is closer to the first inlet end; wherein the outlet portion is located in the first passage, and the outlet portion is sealedly connected to the flange member.
  6. The valve according to claim 5, wherein the inner wall of the tube body and an outer wall of the outlet portion are respectively provided with one of a snapping groove and a snapping portion, and the snapping groove or the snapping portion of the inner wall of the tube body is located between the first inlet end and the annular flange, and the tube body is operatively fixed to the outlet portion through the snapping groove and the snapping portion.
  7. The valve according to claim 5, wherein the annular flange is provided with an annular recess axially recessed along the first passage, an opening side of the annular recess faces the first inlet end, and a sealing member is disposed in the annular recess; the outlet portion has a sealing portion directly facing the annular recess, and the sealing portion is in sealing contact with the sealing member.
  8. The valve according to claim 5, wherein the second outlet passage is coaxially arranged with the first passage.
  9. A liquid bag, comprising: a liquid bag body, which has a sealed cavity and an opening communicating with the cavity; a flange member, which is the flange member according to any one of claims 1 to 4; wherein the first outlet end of the tube body passes through the opening and is located in the cavity, and a surface of the flange plate facing the first outlet end is sealedly connected and fixed to the liquid bag body around the opening.
  10. A liquid bag, comprising: a liquid bag body, which has a closed cavity and an opening communicating with the cavity; a valve, which is the valve according to any one of claims 5 to 8; wherein the first outlet end of the tube body passes through the opening and is located in the cavity, and a surface of the flange plate facing the first outlet end is sealedly connected and fixed to the liquid bag body around the opening.
  11. A container, comprising: a box body, which comprises a base and a plurality of side panels, wherein the plurality of side panels and the base form an accommodating cavity; a liquid bag, a liquid bag body thereof has a closed cavity and an opening communicating with the cavity; a valve, which is the valve according to any one of claims 5 to 8; wherein the first outlet end of the tube body passes through the opening and is located in the cavity, and a surface of the flange plate facing the first outlet end is sealedly connected and fixed to the liquid bag body around the opening.
  12. The container according to claim 11, wherein the box body is provided with a window, and the valve is movably located in the window.
  13. The container according to claim 11, wherein a boss portion protruding into the accommodating cavity is provided on an edge ofthe window facing an inner side wall of the accommodating cavity, and a top surface of the boss portion does not exceed the flange member.

Description

This application claims priority from the following Chinese patent application: Filing date: June 30, 2023; Application number: 202310800500.2; Invention title: Flange member, valve, liquid bag, and container;The entirety of the above application is incorporated herein by reference. Technical Field The present invention relates to technical filed of valve, in particular to a flange member, a valve, a liquid bag, and a container. Background The existing turnover containers are lined with a liquid bag to contain liquid. Existing liquid bags used in intermediate bulk containers are equipped with valves that can be opened and closed multiple times. These types of valves are typically secured to the liquid bag by welding the flange to the liquid bag and then assembling the flange with the valve body. When the liquid bag is installed in an intermediate bulk container, since the flange surface where the flange and the liquid bag are welded is relatively far from the side wall of the intermediate bulk container, after filling with liquid, the liquid bag near the flange surface will cling to the side wall of the container under the action of the liquid, generating a tensile pulling force between the liquid and the side wall, increasing the probability of the liquid bag to damage due to this pulling force during transportation. Summary of the Invention The object of the present invention is to provide a flange member, a valve, a liquid bag and a container, so as to reduce the pulling force of the liquid bag at the edge of the flange member, thereby reducing the probability of the liquid bag to damage due to the pulling force. To achieve the above object, the technical solutions of the present invention are as follows: a flange member, comprising: a tube body, which has a first passage extending therethrough, two ends of the first passage are respectively a first inlet end and a first outlet end, and an inner wall of the tube body has an annular flange extending into the first passage, the annular flange is closer to the first outlet end; anda flange plate;wherein the tube body extends through the flange plate in an axial direction of the flange plate and is fixedly connected to the flange plate, and the flange plate is closer to the first inlet end. In one embodiment, the inner wall of the tube body is provided with an inwardly concave snapping groove or an outwardly convex snapping portion, and the snapping groove or the snapping portion is located between the first inlet end and the annular flange. In one embodiment, the annular flange is provided with an annular recess axially recessed along the first passage, and an opening side of the annular recess faces the first inlet end. In one embodiment, an outer end surface of the flange plate is flush with an end surface of the first inlet end, and an outer end surface of the annular flange is flush with an end surface of the first outlet end. The present invention also provides a valve, comprising: a valve body, which has a valve cavity, an inlet portion, and an outlet portion, the inlet portion has a second inlet passage extending therethrough and communicating with the valve cavity, and the outlet portion has a second outlet passage extending therethrough and communicating with the valve cavity;a valve core, which is movably provided in the valve cavity;a driving member, which extends through the valve body and drives the valve core to open or close the valve cavity;a flange member, comprising a tube body and a flange plate, wherein the tube body has a first passage extending therethrough, two ends of the first passage are respectively a first inlet end and a first outlet end, and an inner wall of the tube body has an annular flange extending into the first passage, the annular flange is closer to the first outlet end; the tube body extends through the flange plate in an axial direction of the flange plate and is fixedly connected to the flange plate, and the flange plate is closer to the first inlet end;wherein the outlet portion is located in the first passage from the first inlet end, and the outlet portion is sealedly connected to the flange member. In one embodiment, the inner wall of the tube body and the outer wall of the outlet portion are respectively provided with one of a snapping groove and a snapping portion, and the snapping groove or the snapping portion of the inner wall of the tube body is located between the first inlet end and the annular flange, and the tube body is operatively fixed to the outlet portion through the snapping groove and the snapping portion. In one embodiment, the annular flange is provided with an annular recess axially recessed along the first passage, the opening side of the annular recess faces the first inlet end, and a sealing member is disposed in the annular recess; the outlet portion has a sealing portion directly facing the annular recess, and the sealing portion is in sealing contact with the sealing member. In one embo