Flange member, valve, liquid bag, and container

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 channel (2411) runs through the inside of the tube body (241), the two ends of the first channel (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 lip (2414) extending out into the first channel (2411), and the annular lip (2414) being closer to the first outlet end (2413); the tube body (241) penetrates 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 said pulling force.

Description

Flange, valve, liquid bag and container

[0001] This patent application claims priority from the following Chinese patent applications:

[0002] Submission date: June 30, 2023; Application number: 202310800500.2; Invention title: Flange, valve, liquid bag and container;

[0003] The entirety of the above application is incorporated herein by reference. Technical Field

[0004] The present invention relates to the field of technical valves, and in particular to a flange, a valve, a liquid bag and a container. Background Art

[0005] To hold liquids, existing turnover containers are lined with a liquid bag. Existing liquid bags used in intermediate bulk storage containers are equipped with valves that can be opened and closed multiple times. These valves are typically secured to the liquid bag by welding the flange to the liquid bag, which is then assembled with the valve body. When the liquid bag is loaded onto an intermediate bulk storage container, 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 being damaged during transportation due to this pulling force.

[0006] Summary of the Invention

[0007] The object of the present invention is to provide a flange, a valve, a fluid bag and a container, so as to reduce the pulling force of the fluid bag on the edge of the flange, thereby reducing the probability of the fluid bag being damaged due to the pulling force.

[0008] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] A flange, comprising:

[0010] a tube body, wherein the tube body has a first passage extending therethrough, the first passage having a first inlet end and a first outlet end at two ends thereof, and an inner wall of the tube body having an annular flange extending into the first passage, the annular flange being closer to the first outlet end;

[0011] flange;

[0012] The tube body penetrates the flange along the axial direction of the flange and is fixedly connected to the flange, and the flange is closer to the first inlet end.

[0013] In one embodiment, the inner wall of the tube body is provided with an inwardly concave groove or an outwardly convex buckle, and the groove or the buckle is located between the first inlet end and the annular flange.

[0014] In one embodiment, the annular flange is provided with an annular groove axially recessed along the first channel, and an opening side of the annular groove faces the first inlet end.

[0015] In one embodiment, the outer end surface of the flange is flush with the end surface of the first inlet end, and the outer end surface of the annular flange is flush with the end surface of the second outlet end.

[0016] The present invention also provides a valve, comprising:

[0017] a valve body, wherein the valve body has a valve cavity, an inlet portion, and an outlet portion, the inlet portion having a second inlet passage penetrating the inlet portion and communicating with the valve cavity, and the outlet portion having a second outlet passage penetrating the outlet portion and communicating with the valve cavity;

[0018] a valve core, the valve core being movably disposed in the valve cavity;

[0019] a driving member, the driving member passing through the valve body and driving the valve core to open or close the valve cavity;

[0020] A flange member, comprising a tube body and a flange plate, wherein the tube body has a first passage extending therethrough, the first passage having a first inlet end and a first outlet end at its ends, and an inner wall of the tube body having an annular flange extending into the integral passage, the annular flange being closer to the first outlet end; the tube body extending therethrough along the axial direction of the flange plate and being fixedly connected thereto, the flange plate being closer to the first inlet end;

[0021] Wherein, the outlet portion is located in the first channel from the first inlet end, and the outlet portion is sealedly connected to the flange.

[0022] 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 slot and a buckle, and the slot or buckle of the inner wall of the tube body is located between the first inlet end and the annular flange, and the tube body can be operably fixed to the outlet portion through the slot and the buckle.

[0023] In one embodiment, the annular flange is provided with an annular groove axially recessed along the first channel, the opening side of the annular groove faces the first inlet end, and a sealing member is disposed in the annular groove; the outlet portion has a sealing portion facing the annular groove, and the sealing portion is in sealing contact with the sealing member.

[0024] In one embodiment, the second outlet channel and the first channel are coaxially arranged.

[0025] The present invention also provides a fluid bag, comprising:

[0026] A fluid bag body, the fluid bag body having a sealed cavity and an opening communicating with the cavity;

[0027] A flange, wherein the flange is any of the flanges described above;

[0028] The first outlet end of the tube body passes through the opening and is located in the cavity, and the surface of the flange facing the first outlet end is sealed and fixed to the liquid body around the opening.

[0029] The present invention also provides a fluid bag, comprising:

[0030] A fluid bag body, the fluid bag body having a sealed cavity and an opening communicating with the cavity;

[0031] Valve, wherein the valve is any of the valves described above;

[0032] The first outlet end of the tube body passes through the opening and is located in the cavity, and the surface of the flange facing the first outlet end is sealed and fixed to the liquid body around the opening.

[0033] The present invention provides a container, comprising:

[0034] A box body, the box body comprising a base and a plurality of side panels, wherein the plurality of side panels and the base form a cavity;

[0035] A fluid bag, wherein the fluid bag body has a sealed cavity and an opening communicating with the cavity;

[0036] Valve, wherein the valve is any of the valves described above;

[0037] The first outlet end of the tube body passes through the opening and is located in the cavity, and the surface of the flange facing the first outlet end is sealed and fixed to the liquid body around the opening.

[0038] In one embodiment, the box body is provided with a window, and the valve is movably located in the window.

[0039] In one embodiment, a boss portion protruding into the cavity is provided on the inner side wall of the window edge facing the cavity, and the top surface of the boss portion does not exceed the flange component.

[0040] The present invention adopts the above technical solution, which has the beneficial effect that the flange of the present invention sets the flange plate connected to the bag body of the liquid bag at the inlet end, so as to reduce the distance between the bag body near the flange and the side wall of the box body, thereby reducing the pulling force of the liquid bag on the edge of the flange, and further reducing the probability of the liquid bag being damaged due to this pulling force during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] FIG1 shows a perspective cross-sectional view of a container.

[0042] FIG. 2 shows an enlarged view of point A in FIG. 1 .

[0043] FIG3 shows a schematic cross-sectional view of the container.

[0044] FIG. 4 shows an enlarged view of point B in FIG. 3 .

[0045] FIG5 shows a perspective view of the valve.

[0046] FIG6 shows a cross-sectional view of the valve.

[0047] FIG7 shows an exploded view of the valve.

[0048] FIG8 shows a cross-sectional view of the valve with the flange removed.

[0049] FIG. 9 shows a perspective view of the flange.

[0050] FIG10 shows a cross-sectional view of the flange member.

[0051] Description of the drawings: 1. Container; 11. Box body; 110. Cavity; 111. Base; 112. Side plate; 12. Window; 121. Boss; 2. Valve; 21. Valve body; 211. Valve cavity; 212. Inlet; 2121. Second inlet channel; 213. Outlet; 2131. Second outlet channel; 2132. Buckle; 2133. Sealing portion; 214. Hook; 22. Valve core; 221. Outer valve seat; 222. Inner valve seat; 223. Positioning ring; 23. Driving member; 24. Flange; 241. Tube; 2411. First channel; 2412. First inlet end; 2413. First outlet end; 2414. Annular flange; 2415. Annular groove; 2416. Flange sealing ring; 2417. Slot; 242. Flange; 25. Operating lever, 26. Positioning rod, 27, valve cover. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0053] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0054] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, that is, should be interpreted to mean "including, but not limited to."

[0055] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0056] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0057] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0058] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0059] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0060] A specific embodiment of the present application provides a container and a liquid bag installed in a cavity. Referring to Figures 1 to 4, the container 1 includes a box body 11 and a liquid bag. Among them, the box body 11 is surrounded by a base 111 and a plurality of side panels 112, and has a cavity 110. The side panels 112 are preferably fixed to the base 111 in a foldable manner relative to the base 111 to facilitate the handling and transportation of the box body. The liquid bag (not shown in the figure) is lined in the cavity 110 of the box body 11 to hold the liquid. The liquid bag is usually made of a high molecular organic material, such as PP, PE and other materials. The liquid bag has a closed cavity and a filling port for filling the liquid. Some liquid bags also have a discharge port for discharging the liquid. In this embodiment, the valve installed on the discharge port is used for illustration.

[0061] The liquid bag's drain port is typically located at the bottom of the bag body, and a valve 2 is mounted on the drain port to facilitate the discharge of the liquid within the bag. The housing 11 includes a window 12 at a location corresponding to the drain port, and the valve 2 mounted on the drain port is received within the window 12.

[0062] Referring to Figures 5-8 , the valve 2 includes a valve body 21, a valve core 22, a driver 23, and a flange 24. The valve body 21 has a valve cavity 211, an inlet 212, and an outlet 213. The inlet 212 has a second inlet channel 2121 extending through the inlet 212 and communicating with the valve cavity 211. The outlet 213 has a second outlet channel 2131 extending through the outlet 213 and communicating with the valve cavity 211. In this embodiment, the second inlet channel 2121 and the second outlet channel 2131 are coaxially arranged. The valve core 22 is restrained within the valve cavity 211 by a retaining ring 223. A retaining rod 26 is also provided at the bottom of the valve body 21. The retaining rod 26 extends through the valve body and connects to the bottom of the valve core 22. This allows the valve core 22 to rotate about the retaining rod 26, engaging with an outer valve seat 221 in the inlet 212 or an inner valve seat 222 in the outlet 213 to open or close the valve cavity 211. A driving member 23 is provided at the top of the valve core 22 opposite to the positioning rod 26. The driving member 23 passes through the valve body 21 and is driven and connected to the valve core 22 to drive the valve core 22 to open or close the valve chamber. Preferably, there is also an operating rod 25, which is fixedly connected to the driving member 23. By operating the operating rod 25, the driving member 23 drives the valve core 22 to move. Another preferred embodiment is that the valve 2 also includes a valve cover 27, which is detachably connected to the inlet portion 212 by a threaded connection. The flange 24 is sealed and connected to the outlet portion 213 of the valve body 21. It should be noted that the structure of the valve body, its valve core and the driving member shown above is only an example, and other structures that can be matched with flanges in the prior art can also be applied here.

[0063] Referring to Figure 4 , in the prior art, the flange plate of the flange used for welding to the fluid bag is always located at the rightmost end of the flange. Therefore, in the prior art, the distance between the flange surface and the inner wall of the box is D1. When the fluid bag is filled with liquid, a tensile pulling force is generated between the liquid and the side wall of the box, increasing the probability of the fluid bag being damaged due to this pulling force during transportation.

[0064] 9 and 10 , the flange member 24 in this embodiment includes a tube body 241 and a flange plate 242. The tube body 241 defines a first passage 2411 extending therethrough, with the first passage 2411 having two ends defined as a first inlet end 2412 and a first outlet end 2413. The inner wall of the tube body 241 also includes an annular flange 2414 extending into the first passage 2411. The annular flange 2414 is located on the tube body 241 closer to the first outlet end 2413.

[0065] The tube body 241 extends through the flange 242 axially and is fixedly connected to the flange 242. The flange 242 is located on the tube body 241 closer to the first inlet end 2412. The tube body 241 and the flange 242 are typically plastic parts and can be integrally formed using an injection molding process, but the present invention is not limited thereto. They can also be fixedly connected using methods such as welding.

[0066] Among them, the annular flange 2414 is used to seal against the valve body portion inserted into the first channel 2411, thereby achieving a sealed connection between the flange 24 and the valve body, and the flange is welded to the edge of the liquid bag opening. Since the annular flange 2414 is close to the first outlet end 2413 and the flange 242 is closer to the first inlet end 2412, the flange 242 is also closer to the valve body portion. Referring again to Figure 4, when the flange 24 is welded to the liquid bag, compared to the existing valve structure, the distance between the flange 242 of the flange 24 of the present application and the side wall of the box is D2. Compared with D1 of the prior art, it effectively reduces the distance between the flange and the side wall of the box, thereby greatly reducing the pulling force of the liquid bag at this position, avoiding damage to the liquid bag during transportation.

[0067] Referring again to FIG. 2 , in this specific embodiment, the valve 2 is movably located within the window 12 so that when the liquid bag is filled with liquid, the valve 2 can adaptively slide a certain distance within the window 12 by the pressure of the liquid bag, thereby adaptively reducing the distance between the flange 242 and the side wall of the box, thereby further reducing the pulling force of the liquid bag at this position.

[0068] Alternatively, the valve 2 can be fixedly assembled within the window 12. Referring to Figure 7 , the valve body 21 is provided with a hook 214 fixedly connected to the edge of the window 12. To this end, a boss 121 is provided on the inner sidewall of the window 12, facing the cavity. The top surface of the boss 121 does not extend beyond the flange 24, further reducing the distance between the flange 242 and the sidewall of the box, thereby further reducing the pulling force on the fluid bag at this location.

[0069] Referring to Figure 10, in this specific embodiment, the outer end surface of the flange 242 is flush with the end surface of the first inlet end 2412 of the tube body 241, and the outer end surface of the annular flange 2414 is flush with the end surface of the second outlet end 2413, that is, the flange 242 and the annular flange 2414 are respectively located on the two axial ends of the tube body, so that the flange 242 can be closer to the side wall of the body.

[0070] Referring again to Figure 10, in this specific embodiment, the annular flange 2414 is provided with an annular groove 2415 recessed along the axial direction of the first passage 2411. The open side of the annular groove 2415 faces the first inlet end. The annular groove 2415 is used to accommodate a flange sealing ring 2416 to better achieve a sealing abutment with the valve body portion inserted into the first passage 2411. Preferably, the free end surface of the outlet portion 213 is a sealing portion 2133 that directly faces the annular groove 2415. When the outlet portion 213 is fixedly connected to the flange member 24, the sealing portion 2133 and the flange sealing ring 2416 come into sealing contact to achieve a sealed connection between the outlet portion 213 and the flange member 24.

[0071] 6, 8, and 10, the inner wall of the tube body 241 is provided with a snap-fit ​​groove 2417 located between the first inlet end 2412 and the annular flange 2414. The outer wall of the outlet portion 213 of the valve body 21 is provided with a snap 2132 that matches the snap-fit ​​groove 2417. During assembly, the outlet portion 213 is inserted into the first passage 2411 through the first inlet end 2412 of the tube body 241 and is fixedly connected to the tube body 241 through the engagement between the snap 2132 and the snap-fit ​​groove 2417, thereby facilitating the assembly connection between the valve body 21 and the flange 24.

[0072] While the preferred embodiments of the present invention have been described in detail above, it should be understood that, after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. Such equivalents also fall within the scope defined by the appended claims.

Claims

1. A flange, characterized in that: include: A tube body, wherein the tube body has a first channel running through the tube body, the two ends of the first channel are respectively a first inlet end and a first outlet end, the inner wall of the tube body has an annular flange extending into the first channel, and the annular flange is closer to the first outlet end; Flange; The tube body penetrates the flange along the axial direction of the flange and is fixedly connected to the flange, and the flange is closer to the first inlet end.

2. The flange according to claim 1, characterized in that: The inner wall of the tube body is provided with an inwardly concave clamping groove or an outwardly convex clamping buckle, and the clamping groove or the clamping buckle is located between the first inlet end and the annular flange.

3. The flange according to claim 1, characterized in that: The annular flange is provided with an annular groove recessed axially along the first passage, and an opening side of the annular groove faces the first inlet end.

4. The flange according to claim 1, characterized in that: The outer end surface of the flange is flush with the end surface of the first inlet end, and the outer end surface of the annular flange is flush with the end surface of the first outlet end.

5. A valve, characterized in that: include: A valve body, wherein the valve body has a valve cavity, an inlet portion, and an outlet portion, wherein the inlet portion has a second inlet passage penetrating the inlet portion and communicating with the valve cavity, and the outlet portion has a second outlet passage penetrating the outlet portion and communicating with the valve cavity; A valve core, the valve core is movably arranged in the valve cavity; A driving member, the driving member passes through the valve body and drives the valve core to open or close the valve cavity; A flange member, the flange member comprises a tube body and a flange plate, the tube body has a first passage penetrating the tube body, the two ends of the first passage are respectively a first inlet end and a first outlet end, the 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 penetrates the flange plate along the axial direction of the flange plate and is fixedly connected to the flange plate, the flange plate is closer to the first inlet end; Wherein, the outlet portion is located in the first channel from the first inlet end, and the outlet portion is sealed and connected to the flange.

6. The valve according to claim 5, characterized in that The inner wall of the tube body and the outer wall of the outlet portion are respectively provided with one of a slot and a buckle, the slot or the buckle of the inner wall of the tube body is located between the first inlet end and the annular flange, and the tube body can be operably fixed to the outlet portion through the slot and the buckle.

7. The valve according to claim 5, characterized in that The annular flange is provided with an annular groove axially recessed along the first channel, the opening side of the annular groove faces the first inlet end, and a sealing member is arranged in the annular groove; the outlet portion has a sealing portion facing the annular groove, and the sealing portion is in sealing contact with the sealing member.

8. The valve according to claim 5, characterized in that The second outlet channel is coaxially arranged with the first channel.

9. A liquid bag, characterized in that: include: A fluid bag body, the fluid bag body having a closed cavity and an opening communicating with the cavity; A flange, wherein the flange is the flange according to any one of claims 1 to 4; The first outlet end of the tube body passes through the opening and is located in the cavity, and the surface of the flange facing the first outlet end is sealed and fixed to the liquid bag body around the opening.

10. A liquid bag, characterized in that: include: A fluid bag body, the fluid bag body having a closed cavity and an opening communicating with the cavity; A valve, wherein the valve is the valve according to any one of claims 5 to 8; The first outlet end of the tube body passes through the opening and is located in the cavity, and the surface of the flange facing the first outlet end is sealed and fixed to the liquid bag body around the opening.

11. A container, characterized in that: include: A box body, the box body comprising a base and a plurality of side panels, wherein the plurality of side panels and the base form a cavity; A fluid bag, wherein the fluid bag body has a closed cavity and an opening communicating with the cavity; A valve, wherein the valve is the valve according to any one of claims 5 to 8; The first outlet end of the tube body passes through the opening and is located in the cavity, and the surface of the flange facing the first outlet end is sealed and fixed to the liquid bag body around the opening.

12. The container according to claim 11, characterized in that The box body is provided with a window, and the valve is movably located in the window.

13. The container according to claim 11, characterized in that A boss portion protruding into the cavity is arranged on the inner side wall of the window edge facing the cavity, and the top surface of the boss portion does not exceed the flange part.

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