Inflation valve and packaging box

Abstract

An inflation valve comprises a valve body, a valve element and an elastic piece. The valve body comprises a first end and a second end which are oppositely arranged, and the valve body is provided with a cavity located between the first end and the second end. The first end is provided with an inflation inlet, the second end is provided with an opening, and the valve body is at least partially assembled into the cavity in the first direction, facing the inflation inlet, of the opening. The elastic piece is assembled and positioned on the second end portion, and at least part of the valve element is limited in the cavity through the elastic piece. The utility model further relates to a packaging box which comprises a box body and an inflation bag. The inflation bag is attached to the inner wall face of the box body, and the inflation valve is installed on the inflation bag. The inflation valve has the advantages of being simple and stable in structure, convenient to inflate inwards and good in sealing performance. The packaging box is provided with the inflation valve and has the beneficial effects of moisture resistance and shock resistance.

Description

Technical Field

[0001] The utility model relates to the field of packaging, in particular to an inflation valve and a packaging box. Background Art

[0002] The packaging boxes and cushioning materials commonly used in the market are currently separate. When customers purchase, they often receive packaging of various styles, which not only wastes packaging resources but also increases packaging costs and logistics transportation costs, and also generates packaging materials and other garbage. In the packaging boxes commonly used in the existing market, the cushioning materials are directly placed in the packaging boxes, which is inconvenient for recycling and storage. Customers are troubled by dealing with a large amount of packaging material garbage, which reduces the experience of customers after unpacking new products. At present, there are products that set the cushioning material of the packaging box as an inflatable bag, but because the inflation valve on the inflatable bag has a complex structure, it is inconvenient to inflate. Therefore, it is necessary to provide an inflation valve and a packaging box to solve the above problems. Utility Model Content

[0003] The first object of the utility model is to provide an inflation valve, which has the beneficial effects of simple and stable structure, easy inflation and no random leakage after inflation.

[0004] To achieve the above-mentioned purpose one, the utility model adopts the following technical solution one: an inflation valve, comprising a valve body, a valve core and a spring sheet, the valve body comprising a first end and a second end arranged oppositely, the valve body having a chamber located between the first end and the second end, the first end being provided with an inflation port, the second end being provided with an opening, the valve body being at least partially assembled into the chamber along a first direction from the opening toward the inflation port, the spring sheet being assembled and positioned on the second end, and the spring sheet limiting at least part of the valve core within the chamber.

[0005] As a further improvement of technical solution one of the utility model, the diameter of the opening is larger than the diameter of the inflation port, the valve core includes a large diameter disk portion and a tapered portion, the large diameter disk portion is arranged at a position close to the opening, and the large diameter disk portion is arranged at a position close to the opening, and when the large diameter disk portion overlaps the second end portion at the opening, it is also clamped between the valve body and the spring sheet; the tapered portion extends integrally from the large diameter disk portion and its free end is close to the position of the inflation port.

[0006] As a further improvement of the first technical solution of the utility model, the internal hollowness of the conical portion forms a cavity from bottom to top and air vents are provided on the wall of the conical portion, and a plurality of the air vents converge into the cavity, and the cavity passes downward through the bottom surface of the conical portion but is blocked upward by the large-diameter disk portion on the top surface of the conical portion.

[0007] As a further improvement of the first technical solution of the utility model, the spring sheet includes a main body and a crimping portion, the main body includes a first end and a second end arranged oppositely, the main body also includes an inner side and an outer side arranged oppositely, the crimping portion is bent from one end of the main body and protrudes toward the inner side, and the crimping portion can abut against the large diameter disk portion.

[0008] As a further improvement of the first technical solution of the utility model, the second end is provided with a protruding column, the first end is provided with a through hole, the protruding column protrudes into the through hole for positioning, and the crimping portion is bent and extended from the second end.

[0009] As a further improvement of the first technical solution of the utility model, there are three spring sheets, and each of the main body portions is in an arc shape, so that the reflections of the three spring sheets on the ring where the second end portion is located are evenly distributed around the ring.

[0010] As a further improvement of the first technical solution of the utility model, a sealing gasket is further provided between the valve body and the valve core, and the sealing gasket is attached to the inner wall of the valve body.

[0011] Compared with the prior art, the inflation valve of the utility model is characterized in that the valve body is at least partially assembled into the chamber along a first direction, wherein the first direction is specifically the direction of the opening on the second end toward the inflation port on the first end; the spring sheet is assembled and positioned on the second end, and the spring sheet limits at least a portion of the valve core in the chamber. The inflation valve of the utility model has the beneficial effects of simple and stable structure, easy inflation and no random leakage after inflation.

[0012] The second purpose of the utility model is to provide a packaging box, which has the beneficial effects of being easily folded into a small shape that is easy to handle, easy to store, and moisture-proof and shock-proof.

[0013] To achieve the above-mentioned second objective, the utility model adopts the following technical solution 2: a packaging box, comprising a box body and an inflatable bag, wherein the inflatable bag is attached to the inner wall surface of the box body, and the inflatable bag is equipped with the above-mentioned inflation valve.

[0014] As a further improvement of the second technical solution of the utility model, the inflatable bag is one of a bubble film and a fireproof film.

[0015] As a further improvement of the second technical solution of the present utility model, the box body is a foldable carton.

[0016] Compared with the prior art, the packaging box of the utility model inflates the inflatable bag through the inflatable valve as described above. Since the structure of the inflatable valve of the utility model is simple, stable and has good sealing performance, the packaging box of the utility model can effectively and quickly seal and inflate the inflatable bag attached to the inner wall surface of the box body, and the packaging box of the utility model can be moisture-proof and shock-proof; after use, the inflatable bag is deflated, and the packaging box of the utility model can be easily folded into a small shape that is easy to handle. Therefore, the packaging box of the utility model has the beneficial effects of being moisture-proof, shock-proof and easy to store. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional combined state diagram of the inflation valve of the utility model;

[0018] Figure 2 It is a three-dimensional exploded state diagram of the inflation valve of the utility model;

[0019] Figure 3 It is a three-dimensional combined state diagram of the inflation valve of the utility model from another angle;

[0020] Figure 4 This is a three-dimensional exploded state diagram of the inflation valve of the utility model from another angle;

[0021] Figure 5 yes Figure 3 A top view of

[0022] Figure 6 The utility model is an inflatable valve along Figure 5 Sectional view of the middle AA line and in the combined state;

[0023] Figure 7 The utility model is an inflatable valve along Figure 5 Cross-sectional view along the AA line and in exploded state;

[0024] Figure 8 It is a diagram of the inflation state of the packaging box of the utility model. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present invention and are recorded in the claims of the present invention.

[0026] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0027] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0028] Please refer to Figures 1 to 7 As shown, the utility model relates to an inflation valve 100, comprising a valve body 1, a valve core 2 and a spring 3. The valve body 1 comprises a first end 11 and a second end 12 arranged oppositely, and the valve body 1 has a chamber 10 located between the first end 11 and the second end 12. The first end 11 is provided with an inflation port 101, and the second end 12 is provided with an opening 102, and the valve body 1 is at least partially assembled into the chamber 10 along a first direction from the opening 102 toward the inflation port 101. The spring 3 is assembled and positioned on the second end 12, and the spring 3 limits at least a portion of the valve core 2 in the chamber 10. Because the inflation valve 100 of the utility model, wherein the valve body 1 is assembled into the chamber 10 along a first direction, please refer to Figure 2 , the first direction is specifically the up-down direction of the opening 102 on the second end 12 toward the inflation port 101 on the first end 11. Since the spring sheet 3 is assembled and positioned on the second end 12 and the spring sheet 3 limits at least part of the valve core 2 in the chamber 10 through elastic force, the inflation valve 100 of the utility model has the beneficial effects of simple and stable structure, convenient inflation and no random leakage after inflation. Therefore, the inflation valve 100 of the utility model has good sealing performance.

[0029] Please refer to Figure 2 , Figure 4 and Figure 7, the caliber of the opening 102 is larger than the caliber of the inflation port 101. The valve core 2 includes a large diameter disc portion 21 and a tapered portion 22, the large diameter disc portion 21 is arranged near the opening 102, and the tapered portion 22 extends integrally from the large diameter disc portion 21 and its free end is close to the inflation port 101. In comparison, the inflation port 101 has a smaller caliber in order to better dock with the inflation device (not shown) for sealed inflation; the opening 102 is designed to have a larger caliber in order to facilitate the assembly of the tapered portion 22 of the valve core 2 into the chamber 10. Please refer to Figure 6 When the large diameter disc portion 21 overlaps the second end portion 12 at the opening 102, it is also clamped between the valve body 1 and the spring 3 to prevent the tapered portion 22 of the valve body 1 from falling downward excessively.

[0030] Please refer to Figure 7 The inner hollow of the conical part 22 forms a cavity 201 from bottom to top, and a vent hole 202 is provided on the wall of the conical part 22. A plurality of vent holes 202 converge into the cavity 201. The cavity 201 penetrates downward at the bottom surface of the conical part 22 but is blocked upward by the large-diameter disc part 21 at the top surface of the conical part 22. With such a configuration, after the conical part 22 of the valve body 1 is assembled into the chamber 10, the position where the cavity 201 penetrates downward at the bottom surface of the conical part 22 is exactly aligned with the position of the inflation port 101. Therefore, when the inflation device inflates the inflation port 101, the gas can pass through the inflation port 101 and the cavity 201 to push the valve core 2 upward, so that the valve core 2 floats upward. The result of the valve core 2 floating upward is that there are gaps between the outer wall of the conical portion 22 facing the chamber 10 and the inner wall of the valve body 1 facing the chamber 10, as well as between the large-diameter disk portion 21 and the second end portion 12. Therefore, the gas can pass through the inflation port 101 and push the valve core 2 upward through the cavity 201, and also pass through the multiple air holes 202, the gap between the outer wall of the conical portion 22 and the inner wall of the valve body 1, and the gap between the large-diameter disk portion 21 and the second end portion 12 to enter the inflated object (such as the inflatable bag 6 below).

[0031] Please refer to Figure 1 and Figure 2, the spring piece 3 includes a main body 31 and a crimping portion 32. The main body 31 includes a first end 311 and a second end 312 arranged oppositely, and the main body 31 also includes an inner side 313 and an outer side 314 arranged oppositely. The crimping portion 32 is bent from one end of the main body 31 and protrudes toward the inner side 313, and the crimping portion 32 can abut against the large-diameter disk portion 21. Specifically, the through hole 30 is located at the first end 311, and the crimping portion 32 is bent from the second end 312 and protrudes toward the inner side 313. Therefore, when the boss 120 protrudes into the through hole 30 located on the first end 311 for positioning, due to the elastic deformation ability of the main body 31, the crimping portion 32 located on the second end 312 can be elastically crimped on the top of the large-diameter disk portion 21 to prevent the valve core 2 from detaching from the valve body 1. In addition, once inflation stops, the gas in the inflatable bag 6 will press the valve core 2 downward toward the valve body 1. Therefore, the gap between the outer wall of the conical portion 22 and the inner wall of the valve body 1 and the gap between the large-diameter disk portion 21 and the second end portion 12 are reset to zero, achieving a sealing effect after inflation.

[0032] In other embodiments not shown in the figure, the valve core 2 may also include only the tapered portion 22 without the large diameter disc portion 21. In this case, the valve core 2, i.e., the tapered portion 22, is completely limited in the chamber 10, and the crimping portion 32 is elastically crimped on the top surface of the tapered portion 22 to limit the valve core 2. Even if the large diameter disc portion 21 is not overlapped on the second end portion 12, it is necessary to block the top surface of the tapered portion 22 to facilitate the inflated gas to push the valve core 2 upward, thereby forming a unique gap between the outer wall of the tapered portion 22 facing the chamber 10 and the inner wall of the valve body 1 facing the chamber 10. In other embodiments, the unique gap is used for gas to enter the inflated object.

[0033] Please refer to Figure 1 and Figure 2 The second end portion 12 is provided with a boss 120, and the first end 311 is provided with a through hole 30, and the boss 120 protrudes into the through hole 30 for positioning. This positioning method is simple, effective and anti-falling. Specifically, the crimping portion 32 is bent and extended from the second end 312. The crimping portion 32 is formed on the opposite end of the spring sheet 3 for positioning, so that the spring sheet 3 can provide sufficient elastic force to ensure the stability of crimping.

[0034] Please refer to Figure 2There are three spring pieces 3, and each of the main body parts 31 is in an arc shape, so that the reflections of the three spring pieces 3 on the ring where the second end 12 is located are evenly distributed around the ring. Therefore, the three spring pieces 3 can provide a relatively balanced force at multiple points to bias the valve core 2 downward toward the valve body 1.

[0035] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 7 A sealing gasket 4 is also provided between the valve body 1 and the valve core 2, and the sealing gasket 4 is attached to the inner wall of the valve body 1. The function of the sealing gasket 4 is to seal the valve body 1 and the valve core 2, that is, the valve body 1 and the valve core 2 are more closely fitted through the sealing gasket 4, and when the inflated object (such as the inflatable bag 6 hereinafter) is inflated, the gas will not leak outward from the inflated object (such as the inflatable bag 6 hereinafter) in the reverse direction.

[0036] Please refer to Figures 1 to 8 As shown, the utility model also relates to a packaging box 200, comprising a box body 5 and an inflatable bag 6. The inflatable bag 6 is attached to the inner wall surface of the box body 5, and the inflatable valve 100 as described above is installed on the inflatable bag 6. The packaging box 200 of the utility model inflates the inflatable bag 6 through the inflatable valve 100 as described above, because the inflatable valve 100 of the utility model has a simple and stable structure and good sealing performance, the packaging box 200 of the utility model can effectively and quickly seal and inflate the inflatable bag 6 attached to the inner wall surface of the box body 5.

[0037] Furthermore, the inflatable bag 6 is one of a bubble film and a fireproof film. For example, in a specific embodiment, the inflatable valve 100 is installed on the bubble film. When the gas flows into the inflatable valve 100, it plays a limiting role. The spring piece 3 ensures that the valve core 2 does not fall off. At the same time, after the gas is inflated, the valve core 2 can automatically return to its original position under the elastic force of the spring piece 3. The inflatable valve 100 of the utility model is linked to the limited valve core 2 through the spring piece 3 to play a sealing role; the design of the bubble film can also be replaced with a fireproof material, i.e., a fireproof film. The utility model can not only replace the inflatable bag 6, i.e., the cushioning material, of different materials and sizes, but also replace the box body 5 of different materials and sizes, so as to achieve the packaging of products of different sizes, that is, according to the shape and size of the product, the size of the inflation amount is adjusted, so that the packaging box 200 of the utility model can play the role of cushioning and fixing different products, and has more adaptability.

[0038] For further information, please refer to Figure 8 , the box body 5 is a foldable carton 5. The box body 5 is a foldable carton 5, which is convenient for consumers to quickly store after use.

[0039] It should also be noted that, after the inflatable device completes the inflation of the inflatable bag 6 via the inflatable valve 100 and evacuates the inflatable device, it is best to have a plug (not shown) to block the inflation port 101 outside the inflatable bag 6 to prevent the inflated gas from accidentally leaking; of course, without the plug, the gas is generally not exposed after the inflation is completed. The "plug" is only to prevent accidental leakage. It is understandable that before the packaging box 200 of the utility model is folded into a smaller and easier to handle shape according to the needs of consumers, it is necessary not only to remove the plug, but also to use a tool similar to a thimble to pass through the inflation port 101 to push the valve core 2, so that there is a gap between the outer wall of the conical portion 22 and the inner wall of the valve body 1 and between the large-diameter disc portion 21 and the second end portion 12 again, so that the inflatable bag 6 can be deflated. Therefore, both inflation and deflation require a tool to push the valve core 2 through the inflation port 101, and the difference is only the difference in the tool.

[0040] The inflation valve 100 of the utility model is applied to a packaging box 200. The valve body 1 is at least partially assembled into the chamber 10 along the first direction. Since the spring piece 3 is assembled and positioned on the second end 12 and the spring piece 3 limits at least part of the valve core 2 in the chamber 10 through elastic force, the inflation valve 100 on the packaging box 200 of the utility model has the beneficial effects of simple and stable structure, convenient inflation and no random leakage after inflation. The packaging box 200 of the utility model inflates the inflatable bag 6 through the inflation valve 100 as described above. Because the inflation valve 100 of the utility model has a simple and stable structure and good sealing performance, the packaging box 200 of the utility model can quickly and effectively seal and inflate the inflatable bag 6. The packaging box 200 of the utility model can also be folded into a small shape that is easy to handle as needed. Therefore, the packaging box 200 of the utility model has the beneficial effects of being moisture-proof, shock-proof and easy to collect.

[0041] The above embodiments are only used to illustrate the present invention but not to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. For example, the directional descriptions such as "front", "back", "left", "right", "up", and "down" are described in detail in this specification with reference to the above embodiments. However, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An inflation valve (100), characterized in that: The invention comprises a valve body (1), a valve core (2) and a spring sheet (3); the valve body (1) comprises a first end (11) and a second end (12) which are arranged opposite to each other; the valve body (1) has a chamber (10) located between the first end (11) and the second end (12); the first end (11) is provided with an air charging port (101); the second end (12) is provided with an opening (102); the valve body (1) is at least partially assembled into the chamber (10) along a first direction from the opening (102) toward the air charging port (101); the spring sheet (3) is assembled and positioned on the second end (12); the spring sheet (3) limits at least a portion of the valve core (2) in the chamber (10).

2. The inflation valve (100) according to claim 1, characterized in that: The caliber of the opening (102) is larger than the caliber of the inflation port (101); the valve core (2) comprises a large diameter disc portion (21) and a tapered portion (22); the large diameter disc portion (21) is arranged at a position close to the opening (102); when the large diameter disc portion (21) overlaps the second end portion (12) at the opening (102), it is also clamped between the valve body (1) and the spring sheet (3); the tapered portion (22) extends integrally from the large diameter disc portion (21) and its free end is close to the inflation port (101).

3. The inflation valve (100) according to claim 2, characterized in that: The interior of the conical portion (22) is hollow to form a cavity (201) from bottom to top, and a vent hole (202) is provided on the wall of the conical portion (22), and a plurality of vent holes (202) converge into the cavity (201), and the cavity (201) passes downwardly through the bottom surface of the conical portion (22) but is blocked upwardly by the large-diameter disk portion (21) on the top surface of the conical portion (22).

4. The inflation valve (100) according to claim 2, characterized in that: The spring sheet (3) comprises a main body (31) and a crimping portion (32); the main body (31) comprises a first end (311) and a second end (312) arranged oppositely; the main body (31) further comprises an inner side (313) and an outer side (314) arranged oppositely; the crimping portion (32) is bent from one end of the main body (31) and protrudes toward the inner side (313); the crimping portion (32) is capable of abutting against the large-diameter disk portion (21).

5. The inflation valve (100) according to claim 4, characterized in that: The second end portion (12) is provided with a convex column (120), the first end (311) is provided with a through hole (30), the convex column (120) protrudes into the through hole (30) for positioning, and the crimping portion (32) is bent and extended from the second end (312).

6. The inflation valve (100) according to claim 4, characterized in that: There are three spring sheets (3), and each of the main body parts (31) is in an arc shape, so that the reflections of the three spring sheets (3) on the ring where the second end part (12) is located are evenly distributed around the ring.

7. The inflation valve (100) according to claim 1, characterized in that: A sealing gasket (4) is also provided between the valve body (1) and the valve core (2), and the sealing gasket (4) is attached to the inner wall of the valve body (1).

8. A packaging box (200), characterized in that: It comprises a box body (5) and an inflatable bag (6), wherein the inflatable bag (6) is attached to the inner wall surface of the box body (5), and the inflatable valve (100) as described in any one of claims 1 to 7 is installed on the inflatable bag (6).

9. The packaging box (200) according to claim 8, characterized in that: The inflatable bag (6) is one of an air bubble film and a fireproof film.

10. The packaging box (200) according to claim 8, characterized in that: The box body (5) is a foldable carton.

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