Fluid pouring packaging container that prevents backflow

Abstract

The present invention discloses a fluid pouring packaging container that prevents backflow, comprising a one-way valve, a lid body, and a bottle body; the lid body is provided with an installation cavity for accommodating the one-way valve; the bottle body forms a bottle mouth; the packaging container includes a first state, a second state, and a third state; when the packaging container is in the first state, the one-way valve is accommodated within the lid body; when the packaging container is in the second state, the lid body covers the bottle mouth through the installation cavity, one end of the one-way valve is located within the installation cavity, and the other end of the one-way valve extends into the bottle mouth; when the packaging container is in the third state, the lid body detaches from the bottle mouth and the one-way valve, and the one-way valve remains built into the bottle mouth, and the one-way valve is used to restrict the flow of gas and liquid from outside the bottle into the bottle mouth. When the packaging container is in the second state, the one-way valve is transferred from within the installation cavity to the bottle mouth, and the one-way valve detaches from the lid body. The one-way valve can be transferably arranged on the lid body, and the bottle body can be directly assembled with the lid body after filling to achieve the assembly of the packaging container, and the processing procedure is simple.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging products, and particularly to a fluid pouring packaging container with anti-backflow suction. Background Art

[0002] To ensure the freshness of food or drug packaging, a check valve is provided at the bottle mouth in traditional packaging bottles to prevent air from flowing into the bottle after the packaging bottle is opened, ensuring the unidirectional output of the fluid in the bottle during use and maximizing the protection of the product. Due to the check valve at the bottle mouth, it is impossible to fill the bottle body from the bottle mouth, and it is necessary to open an opening at other parts of the packaging bottle for filling. After filling, the opening also needs to be sealed. The processing process is cumbersome, the procedures are complex, and the cost is high. Summary of the Invention

[0003] Due to the check valve at the bottle mouth, it is impossible to fill the bottle body from the bottle mouth, and it is necessary to open an opening at other parts of the packaging bottle for filling. After filling, the opening also needs to be sealed. The processing process is cumbersome, the procedures are complex, and the cost is high. Based on this, it is necessary to provide a fluid pouring packaging container with anti-backflow suction to facilitate filling the bottle body and avoid opening another opening in the bottle body while ensuring the installation of a check valve at the bottle mouth.

[0004] The specific technical solution is as follows:

[0005] On the one hand, the present application relates to a fluid pouring packaging container with anti-backflow suction, including a check valve, a cover body, and a bottle body; the cover body is provided with an installation cavity for accommodating the check valve; the bottle body forms a bottle mouth; the packaging container includes a first state, a second state, and a third state;

[0006] When the packaging container is in the first state, the check valve is accommodated in the cover body;

[0007] When the packaging container is in the second state, the cover body covers the bottle mouth through the installation cavity, one end of the check valve is located in the installation cavity, and the other end of the check valve extends into the bottle mouth;

[0008] When the packaging container is in the third state, the cover body is separated from the bottle mouth and the check valve, and the check valve is still built in the bottle mouth. The check valve is used to restrict the flow of gas and liquid from the outside of the bottle into the bottle mouth.

[0009] When the above packaging container is in use, the fluid product is filled into the bottle body through the nozzle. After filling, the cover body is placed on the nozzle, and the packaging container changes from the first state to the second state. When the packaging container is in the second state, the cover body with a one-way valve is assembled on the nozzle, so that one end of the one-way valve is built into the installation cavity, and the other end of the one-way valve extends into the nozzle. When the packaging container is in the third state, the cover body is opened, and the one-way valve is still built into the nozzle, so that the one-way valve is transferred from the installation cavity to the nozzle, and the one-way valve is separated from the cover body. When the bottle body is tilted or squeezed, the fluid in the bottle body can be output unidirectionally through the one-way valve, and the poured fluid can be prevented from being sucked back. The outside air cannot enter the bottle body due to the limitation of the one-way valve, so as to protect the fluid in the bottle body. Since the one-way valve can be transferably arranged on the cover body, the bottle body can be directly assembled with the cover body after filling to realize the assembly of the packaging container, with simple processing procedures and low processing costs.

[0010] The technical solution will be further described below:

[0011] In one embodiment, the one-way valve includes a valve member and a valve seat. The valve seat is provided with a drainage channel, and the valve member is arranged in the drainage channel; the cover body further forms a plug-in portion, and the plug-in portion is fixed on the bottom wall of the installation cavity and encloses a plug-in space with the inner wall of the installation cavity; when the packaging container is in the second state, one end of the valve seat is inserted into the plug-in space and is in plug-in fit with the plug-in portion, the other end of the valve seat is inserted into the nozzle, and the nozzle is inserted into the plug-in space and is arranged between the valve seat and the inner wall of the installation cavity; the valve member is configured to open the drainage channel when subjected to the external force exerted by the medium in the bottle, and close the drainage channel when the external force exerted by the medium in the bottle is withdrawn. When the valve member is subjected to the thrust when the fluid flows out or the pressure caused by squeezing the bottle body, it will open the drainage channel, so that the fluid in the bottle body can flow out normally. When the external force exerted by the medium in the bottle on the valve member is withdrawn, the valve member will close the drainage channel to prevent the outside air from flowing in, with simple structure and strong working stability.

[0012] In one embodiment, one of the inner wall of the nozzle and the outer wall of the valve seat is provided with a clamping protrusion, and the other is provided with a clamping groove adapted to the clamping protrusion. When the packaging container is in the second state, the clamping protrusion is in clamping fit with the clamping groove. After the cover body and the bottle body are assembled, the clamping protrusion is embedded in the clamping groove to limit the valve seat. When the cover body of the packaging container is opened for use, the one-way valve stays in the nozzle, with convenient assembly and good limiting effect.

[0013] In one embodiment, the valve seat includes a support member fixedly provided on the inner wall of the drainage channel. The support member is provided with a through hole communicating with the drainage channel, and the valve member is detachably covered on the through hole. When the valve member is subjected to an external force exerted by the medium in the bottle body, the valve member moves away from the through hole to open the drainage channel. When the external force exerted by the medium in the bottle body on the valve member is withdrawn, the valve member covers the through hole to close the drainage channel. The support member supports the valve member, enabling the valve member to be detachably covered on the through hole, with a simple and reasonable structure.

[0014] In one embodiment, the valve member includes a fixing ring and a valve plate. The valve plate is connected to the inner wall of the fixing ring. The fixing ring is placed inside the drainage channel, and the valve plate is detachably covered on the through hole. The valve plate is provided with a guiding through hole. When the valve plate is subjected to an external force exerted by the medium in the bottle body, the valve plate elastically deforms in a direction away from the through hole to conduct the through hole and the guiding through hole, thereby opening the drainage channel. When the external force exerted by the medium in the bottle body on the valve plate is withdrawn, the valve plate elastically recovers and covers the through hole to block the through hole and the guiding through hole, thereby closing the drainage channel. The valve plate has elasticity and can automatically elastically recover after the external force is withdrawn. The valve plate is covered on the through hole through the fixing ring, with a simple and reasonable structure and strong working stability.

[0015] In one embodiment, the packaging container further includes an outer shell provided with a receiving cavity, and the bottle body is placed inside the receiving cavity. The outer shell supports and protects the bottle body. The bottle body deforms after the fluid flows out, and by providing the outer shell, it is ensured that the packaging container can stand upright.

[0016] In one embodiment, the bottle body is made of an elastic material or a soft material. The bottle body made of an elastic material or a soft material facilitates the extrusion of the fluid in the bottle body by squeezing the bottle body, making it convenient to use.

[0017] In one embodiment, the packaging container further includes a bracket, the bracket includes an extrusion body and a support body, the extrusion body includes an extrusion end and a first fixed end, the support body includes a support end and a second fixed end, the first fixed end is fixedly connected to the second fixed end, a reserved gap is provided between the extrusion end and the support end, the extrusion body and the support body enclose to form a storage space, the bottle body is placed inside the storage space, and the extrusion end has an extrusion state of approaching the support body to extrude the bottle body and a recovery state of being away from the support body. This bracket has a supporting effect and a protective effect on the bottle body. A reserved gap is provided between the extrusion end and the support end, so that the extrusion end can approach the support end. The bottle body is placed inside the storage space. By applying an external force to the extrusion end, the extrusion end approaches the support end, thereby extruding the bottle body and driving the fluid inside the bottle body to be extruded. The structure of this bracket is simple and can achieve the extrusion of the bottle body, making it convenient to use.

[0018] In one embodiment, the length of the extrusion body is less than the length of the support body. By setting the length of the extrusion body to be less than the length of the support body, when the extrusion end is extruded, the extrusion end can extrude the middle part of the bottle body, so that the force on the bottle body is concentrated and the extrusion effect is good.

[0019] In one embodiment, the bracket further includes a buckle, the buckle is connected to the support end, and the bottle mouth is detachably connected to the buckle. By providing the buckle, it is convenient to clamp and fix the bottle mouth, and it is convenient to stably fix the bottle body inside the storage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and the description thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0022] In addition, the drawings are not drawn to a scale of 1:1, and the relative sizes of each component are only drawn exemplarily in the drawings and not necessarily drawn according to the actual scale.

[0023] Figure 1 It is a schematic diagram of the overall structure of a packaging container in an embodiment;

[0024] Figure 2 It is a cross-sectional view of a packaging container in an embodiment;

[0025] Figure 3 Partial cross-sectional view of a packaging container for an embodiment;

[0026] Figure 4 Structural schematic diagram of a valve member for an embodiment;

[0027] Figure 5 Structural schematic diagram of a valve seat for an embodiment;

[0028] Figure 6 Structural schematic diagram of a cover body for an embodiment;

[0029] Figure 7 Structural schematic diagram of a bracket for an embodiment.

[0030] Explanation of reference numerals:

[0031] 10. Packaging container; 100. Cover body; 110. Insertion part; 120. Installation cavity; 200. Bottle body; 210. Bottle mouth; 212. Clamping groove; 214. Limiting ring; 300. Check valve; 310. Valve member; 312. Fixed ring; 314. Valve plate; 320. Valve seat; 322. Drainage channel; 3222. First interface; 3224. Second interface; 324. Clamping protrusion; 326. Support member; 3262. Through hole; 3264. Guide inclined surface; 400. Bracket; 410. Extrusion body; 412. Extrusion end; 414. First fixed end; 420. Support body; 422. Support end; 424. Second fixed end; 430. Reserved gap; 440. Storage space; 450. Buckle. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0034] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] Referring to Figures 1 to 3 , the anti-backflow fluid pouring packaging container 10 in one embodiment includes a one-way valve 300, a lid 100, and a bottle body 200; the lid 100 is provided with an installation cavity 120 for accommodating the one-way valve 300; the bottle body 200 is formed with a bottle mouth 210; the packaging container 10 includes a first state, a second state, and a third state;

[0036] When the packaging container 10 is in the first state, the one-way valve 300 is accommodated within the lid 100;

[0037] When the packaging container 10 is in the second state, the lid 100 is covered on the bottle mouth 210 through the installation cavity 120, one end of the one-way valve 300 is located within the installation cavity 120, and the other end of the one-way valve 300 extends into the bottle mouth 210;

[0038] When the packaging container 10 is in the third state, the lid 100 is separated from the bottle mouth 210 and the one-way valve 300, and the one-way valve 300 is still built into the bottle mouth 210. The one-way valve 300 is used to restrict the flow of gas and liquid from outside the bottle body 200 into the bottle mouth 210.

[0039] When the above-mentioned packaging container 10 is in use, the fluid product is filled into the bottle body 200 through the bottle mouth 210. After filling, the lid 100 is covered on the bottle mouth 210, and the packaging container 10 changes from the first state to the second state. When the packaging container 10 is in the second state, the lid 100 with the one-way valve 300 is assembled on the bottle mouth 210, so that one end of the one-way valve 300 extends into the installation cavity 120, and the other end of the one-way valve 300 is built into the bottle mouth 210. When the packaging container 10 is in the third state, the lid 100 is opened, and the one-way valve 300 is still built into the bottle mouth 210, so that the one-way valve 300 is transferred from the installation cavity 120 to the bottle mouth 210, and the one-way valve 300 is separated from the lid 100. When the bottle body 200 is tilted or squeezed, the fluid in the bottle body 200 can be output unidirectionally through the one-way valve 300, and the poured fluid can be prevented from backflowing. The outside air cannot enter the bottle body 200 due to the restriction of the one-way valve 300, providing protection for the fluid in the bottle body 200. Since the one-way valve 300 is transferably arranged on the lid 100, the bottle body 200 can be directly assembled with the lid 100 after filling to complete the assembly of the packaging container 10, with simple processing procedures and low processing costs.

[0040] Specifically, the bottle body 200 is a bag-type package. After filling the fluid into the bottle body 200, the cover 100 is assembled. By setting the bag-type package, the space of the air stored in the bottle body 200 can be minimized. Threads that are adapted to each other are provided on the inner wall of the cover 100 and the outer wall of the bottle mouth 210, and the cover 100 and the bottle mouth 210 are connected by screw fit. After the cover 100 and the bottle body 200 are assembled, the one-way valve 300 is transferred from the cover 100 to the inside of the bottle mouth 210 and stays in the bottle body 200 when the cover 100 is opened for use, ensuring that the fluid outputs unidirectionally during use and no air enters the inside of the bottle body 200, thereby playing a role in freshness preservation or air isolation.

[0041] Please refer to Figures 3 to 5 , in some embodiments, the one-way valve 300 includes a valve member 310 and a valve seat 320. The valve seat 320 is provided with a drainage channel 322, and the valve member 310 is disposed in the drainage channel 322; the cover 100 further forms a plug-in portion 110, and the plug-in portion 110 is fixed to the bottom wall of the installation cavity 120 and encloses a plug-in space with the inner wall of the installation cavity 120; when the packaging container 10 is in the second state, one end of the valve seat 320 is inserted into the plug-in space and is in plug-in fit with the plug-in portion 110, and the other end of the valve seat 320 is inserted into the bottle mouth 210, and the bottle mouth 210 is inserted into the plug-in space and is disposed between the valve seat 320 and the inner wall of the installation cavity 120; the valve member 310 is configured to open the drainage channel 322 when subjected to an external force exerted by the medium in the bottle, and close the drainage channel 322 when the external force exerted by the medium in the bottle is withdrawn. When the valve member 310 is subjected to the thrust when the fluid flows out or the pressure caused by squeezing the bottle body 200, the drainage channel 322 will be opened, enabling the fluid in the bottle body 200 to flow out normally. When the external force exerted by the medium in the bottle on the valve member 310 is withdrawn, the valve member 310 will close the drainage channel 322 to prevent external air from flowing in. The structure is simple and the working stability is strong.

[0042] Please refer to Figure 3 , a clamping protrusion 324 is provided on one of the inner wall of the bottle mouth 210 and the outer wall of the valve seat 320, and a clamping groove 212 adapted to the clamping protrusion 324 is provided on the other. When the packaging container 10 is in the second state, the clamping protrusion 324 is in clamping fit with the clamping groove 212. After the cover 100 and the bottle body 200 are assembled, the clamping protrusion 324 is embedded in the clamping groove 212 to position the valve seat 320. When the cover 100 of the packaging container 10 is opened for use, the one-way valve 300 stays in the bottle mouth 210. The assembly is convenient and the positioning effect is good.

[0043] Specifically, the snap projection 324 is made of an elastic material. The snap projection 324 is provided on the outer wall of the valve seat 320, and the snap groove 212 is formed on the inner wall of the bottle mouth 210. When the cover body 100 is assembled, the cover body 100 is pressed along the direction of the bottle mouth 210. The snap projection 324 abuts and then contracts until the cover body 100 is completely pressed down. The snap projection 324 is embedded in the snap groove 212 and elastically recovers. The snap - fit between the snap projection 324 and the snap groove 212 realizes the limit fixation of the one - way valve 300. When the cover body 100 is screwed out, due to the limit of the snap groove 212, the one - way valve 300 is gradually separated from the plugging portion 110, and the one - way valve 300 remains in the bottle mouth 210. A limit ring 214 is further provided on the inner wall of the bottle mouth 210. When the valve seat 320 is inserted into the bottle mouth 210, the limit ring 214 is used to abut against the bottom of the valve seat 320 to prevent the valve seat 320 from sliding into the interior of the bottle body 200 through the bottle mouth 210. The depth of the limit ring 214 relative to the outer edge of the bottle mouth 210 is greater than or equal to the length of the valve seat 320, so that the valve seat 320 can be completely inserted into the bottle mouth 210, hiding the one - way valve 300 in the bottle mouth 210 and improving the structural integration.

[0044] Please refer to Figures 3 to 5 , the valve seat 320 includes a support member 326. The support member 326 is fixedly provided on the inner wall of the drainage channel 322. The support member 326 is provided with a through - hole 3262 communicating with the drainage channel 322. The valve member 310 is coverably disposed on the through - hole 3262. When the valve member 310 is subjected to an external force exerted by the medium in the bottle body 200, the valve member 310 moves away from the through - hole 3262 to open the drainage channel 322. When the external force exerted by the medium in the bottle body 200 on the valve member 310 is withdrawn, the valve member 310 covers the through - hole 3262 to close the drainage channel 322. The support member 326 supports the valve member 310, enabling the valve member 310 to be coverably disposed on the through - hole 3262, with a simple and reasonable structure.

[0045] Specifically, the support member 326 is built into the channel of the drainage channel 322, dividing the drainage channel 322 into a first interface 3222 for communicating with the outside of the bottle body 200 and a second interface 3224 for communicating with the bottle mouth 210. The through - hole 3262 communicates the first interface 3222 and the second interface 3224. The valve member 310 is built into the first interface 3222. By providing the first interface 3222, it is convenient for the assembly of the valve member 310 and the valve seat 320, and it has the function of temporarily storing and guiding the flowing fluid. The second interface 3224 communicates with the bottle mouth 210, which can guide the fluid in the bottle body 200 and facilitate the extrusion of the fluid from the through - hole 3262.

[0046] Specifically, the first interface 3222 faces the outside of the bottle mouth 210, the second interface 3224 faces the inside of the bottle body 200, and a guiding inclined surface 3264 is provided on the outer edge of the perforation 3262. The guiding inclined surface 3264 guides the fluid inside the bottle body 200, facilitating the pouring or extrusion of the fluid.

[0047] Refer to Figure 3 and Figure 6 Specifically, the insertion part 110 is a bushing, and one end of the insertion part 110 is connected to the bottom wall of the installation cavity 120; before the cover body 100 and the bottle body 200 are assembled, the inner wall of the first interface 3222 is sleeved on the outer wall of the insertion part 110. By setting the insertion part 110 as a bushing, it is convenient to perform snap - fit with the valve seat 320. The insertion part 110 is inserted into the first interface 3222, facilitating the assembly of the cover body 100 and the one - way valve 300. Moreover, when the cover body 100 is separated from the bottle body 200, it is convenient for the insertion part 110 to disengage from the first interface 3222. The structure is simple and reasonable, and the disassembly and assembly process is convenient.

[0048] Specifically, the cover body 100 is a circular ring cover, the insertion part 110 is coaxially arranged with the outer wall of the cover body 100, and the length of the insertion part 110 is less than the length of the outer wall of the cover body 100. After the cover body 100 and the bottle body 200 are assembled, the insertion part 110 is inserted into the bottle mouth 210. The overall structure is reasonable and the fastening property is good.

[0049] Please refer to Figure 3 and Figure 4 The valve member 310 includes a fixing ring 312 and a valve plate 314. The valve plate 314 is connected to the inner wall of the fixing ring 312. The fixing ring 312 is placed inside the drainage channel 322. The valve plate 314 is movably covered on the perforation 3262, and the valve plate 314 is provided with a guiding through - hole. When the valve plate 314 is subjected to the external force exerted by the medium inside the bottle body 200, the valve plate 314 elastically deforms in a direction away from the perforation 3262 to conduct the perforation 3262 and the guiding through - hole, thereby opening the drainage channel 322. When the external force exerted by the medium inside the bottle body 200 on the valve plate 314 is withdrawn, the valve plate 314 elastically recovers and covers the perforation 3262 to block the perforation 3262 and the guiding through - hole, thereby closing the drainage channel 322. The valve plate 314 has elasticity and can automatically elastically recover after the external force is withdrawn. The valve plate 314 is covered on the perforation 3262 through the fixing ring 312. The structure is simple and reasonable, and the working stability is strong.

[0050] Optionally, the one - way valve 300 can also be set as a spring - type one - way valve, a gravity - type one - way valve, or a swing - check one - way valve. The one - way valve 300 is opened by squeezing the bottle body 200 to generate pressure or by pouring the bottle body 200 to utilize the gravity of the fluid itself. The structure is simple and reasonable.

[0051] Preferably, in some embodiments, the packaging container 10 further includes an outer shell, which is not shown in the figure. The outer shell is provided with a receiving cavity, and the bottle body 200 is placed inside the receiving cavity. The outer shell has a supporting effect and a protective effect on the bottle body 200. After the fluid flows out, the bottle body 200 is deformed. By providing the outer shell, it is ensured that the packaging container 10 can stand upright.

[0052] Specifically, the outer shell covers the bottle body 200. The top of the outer shell is provided with a first opening, and the bottle mouth 210 extends out of the outer shell through the first opening, facilitating the pouring out of the liquid in the bottle body 200.

[0053] Please refer to Figure 1 , in some embodiments, the bottle body 200 is made of an elastic material or a soft material. The bottle body 200 being made of an elastic material or a soft material facilitates the extrusion of the fluid in the bottle body 200 by squeezing the bottle body 200, making it convenient to use.

[0054] Optionally, the bottle body 200 is a stand-up pouch, a plastic bottle, an aluminum alloy bottle, etc.

[0055] Please refer to Figure 1 and Figure 7 , in some embodiments, the packaging container 10 further includes a bracket 400. The bracket 400 includes a squeezing body 410 and a supporting body 420. The squeezing body 410 includes a squeezing end 412 and a first fixed end 414. The supporting body 420 includes a supporting end 422 and a second fixed end 424. The first fixed end 414 is fixedly connected to the second fixed end 424. A reserved gap 430 is provided between the squeezing end 412 and the supporting end 422. The squeezing body 410 and the supporting body 420 enclose to form a storage space 440. The bottle body 200 is placed inside the storage space 440. The squeezing end 412 has a squeezing state of approaching the supporting body 420 to squeeze the bottle body 200 and a restoring state of moving away from the supporting body 420. The bracket 400 has a supporting effect and a protective effect on the bottle body 200. The reserved gap 430 provided between the squeezing end 412 and the supporting end 422 enables the squeezing end 412 to approach the supporting end 422. The bottle body 200 is placed inside the storage space 440. By applying an external force to the squeezing end 412, the squeezing end 412 approaches the supporting end 422, thereby squeezing the bottle body 200 and driving the extrusion of the fluid in the bottle body 200. The structure of the bracket 400 is simple and can achieve the squeezing of the bottle body 200, making it convenient to use.

[0056] Specifically, both the supporting body 420 and the squeezing body 410 are arranged as arc-shaped plates. One end of the supporting body 420 and one end of the squeezing body 410 enclose to form a frustum base, enabling the bracket 400 to support the bottle body 200 and ensuring that the packaging container 10 can stand upright.

[0057] Please refer to Figure 7, in some embodiments, the length of the extrusion body 410 is less than the length of the support body 420. By setting the length of the extrusion body 410 to be less than the length of the support body 420, when the extrusion end 412 is extruded, the extrusion end 412 can extrude the middle part of the bottle body 200, so that the force on the bottle body 200 is concentrated and the extrusion effect is good.

[0058] Preferably, the length of the extrusion body 410 is between 1 / 4 and 3 / 4 of the length of the support body 420, so that the extrusion end 412 is close to the middle of the clamping body. When the bottle body 200 is loaded into the bracket 400, the bottle mouth 210 is clamped to the buckle 450, and the pressure is transmitted to the middle of the bottle body 200 by extruding the extrusion body 410, which is convenient to use.

[0059] Please refer to Figure 7 , in some embodiments, the bracket 400 further includes a buckle 450, and the buckle 450 is connected to the support end 422, and the bottle mouth 210 is detachably connected to the buckle 450. By providing the buckle 450, it is convenient to clamp and fix the bottle mouth 210, and it is convenient to stably fix the bottle body 200 in the storage space 440.

[0060] Preferably, the buckle 450 is rotatably connected to the support end 422 to adjust the angle of the buckle 450 relative to the support body 420. The angle adjustment range of the buckle 450 and the support body 420 is 60° to 150°, and the angle of the buckle 450 can be adjusted according to the length of the bottle body 200. Optionally, the angle between the buckle 450 and the support body 420 is adjusted to 60°, 90°, 120°, 150°. When the bottle body 200 needs to be loaded into or taken out of the storage space 440, the buckle 450 can be adjusted to the maximum angle with the support body 420 to avoid the buckle 450 blocking the loading or taking out of the bottle body 200.

[0061] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0062] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0063] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0064] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0065] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

1. A fluid pouring packaging container with anti-backsucking, characterized in that: include: One-way valve; A cover body, wherein the cover body is provided with a mounting cavity for accommodating the one-way valve; A bottle body having a bottle mouth; the packaging container includes a first state, a second state, and a third state; When the packaging container is in the first state, the one-way valve is accommodated in the cover body; When the packaging container is in the second state, the cover body is covered on the bottle mouth through the installation cavity, one end of the one-way valve is located in the installation cavity, and the other end of the one-way valve extends into the bottle mouth; When the packaging container is in the third state, the cover is separated from the bottle mouth and the one-way valve, and the one-way valve is still built into the bottle mouth. The one-way valve is used to limit the flow of gas and liquid from the outside of the bottle to the inside of the bottle mouth; The one-way valve includes a valve member and a valve seat, the valve seat is provided with a drainage channel, and the valve member is arranged in the drainage channel; the cover body is further formed with a plug-in portion, which is fixed to the bottom wall of the installation cavity and encloses an insertion space with the inner wall of the installation cavity; When the packaging container is in the second state, one end of the valve seat is inserted into the insertion space and plugged into the insertion portion, the other end of the valve seat is inserted into the bottle mouth, and the bottle mouth is inserted into the insertion space and arranged between the valve seat and the inner wall of the installation cavity; the valve member is configured to open the drainage channel when an external force applied by the medium in the bottle is applied, and to close the drainage channel when the external force applied by the medium in the bottle is removed; One of the inner wall of the bottle mouth and the outer wall of the valve seat is provided with a snap-fitting protrusion, the material of the snap-fitting protrusion is an elastic material, and the other of the inner wall of the bottle mouth and the outer wall of the valve seat is provided with a snap-fitting groove adapted to the snap-fitting protrusion, and when the packaging container is in the second state, the snap-fitting protrusion is snap-fitted with the snap-fitting groove.

2. The anti-backsucking fluid pouring packaging container according to claim 1, characterized in that: The plug-in portion is a shaft sleeve, and one end of the plug-in portion is connected to the bottom wall of the installation cavity.

3. The anti-backsucking fluid pouring packaging container according to claim 1, characterized in that: The cover body is a circular cover, and the plug-in portion is coaxially arranged with the outer wall of the cover body.

4. The anti-backsucking fluid pouring packaging container according to claim 1, characterized in that: The valve seat includes a support member, the support member is fixed to the inner wall of the drainage channel, the support member is provided with a through hole communicating with the drainage channel, and the valve member is openably and closably covered on the through hole; When the valve member is subjected to an external force exerted by the medium in the bottle, the valve member moves away from the through hole to open the drainage channel; When the valve member is released by the external force exerted by the medium in the bottle, the valve member covers the through hole to close the drainage channel.

5. The anti-backsucking fluid pouring packaging container according to claim 4, characterized in that: The valve member includes a fixed ring and a valve plate, wherein the valve plate is connected to the inner wall of the fixed ring, the fixed ring is built into the drainage channel, the valve plate is openably and closably covered on the through hole, and the valve plate is provided with a diversion hole; When the valve plate is subjected to an external force exerted by the medium in the bottle, the valve plate elastically deforms in a direction away from the through hole to connect the through hole and the diversion hole, thereby opening the drainage channel; When the external force exerted by the medium in the bottle body on the valve plate is removed, the valve plate elastically recovers and covers the through hole to block the through hole and the diversion hole, thereby closing the drainage channel.

6. The anti-back-sucking fluid pouring packaging container according to any one of claims 1 to 5, characterized in that: It also includes a shell, the shell is provided with a receiving cavity, and the bottle body is placed in the receiving cavity.

7. The anti-backsucking fluid pouring packaging container according to any one of claims 1 to 5, characterized in that: The bracket further includes a bracket, wherein the bracket includes an extrusion body and a support body, the extrusion body includes an extrusion end and a first fixed end, the support body includes a support end and a second fixed end, the first fixed end is fixedly connected to the second fixed end, a reserved gap is provided between the extrusion end and the support end, the extrusion body and the support body enclose a storage space, the bottle body is placed in the storage space, and the extrusion end has an extrusion state close to the support body to squeeze the bottle body and a recovery state away from the support body.

8. The anti-backsucking fluid pouring packaging container according to claim 7, characterized in that: The length of the extruded body is smaller than the length of the supporting body.

9. The anti-backsucking fluid pouring packaging container according to claim 7, characterized in that: The bracket further comprises a buckle, the buckle is connected to the supporting end, and the bottle mouth is detachably connected to the buckle.

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