A portable sealed packaging box

Abstract

The utility model relates to the field of sealed packing box especially, relates to a portable sealed packing box, including lower casing and upper casing, the opening outer edge of upper casing is outwardly provided with the connecting portion that is inverted L type along the circumference, one side of connecting portion is connected with upper casing and cooperates, the other side of connecting portion extends downward and is provided with sealing strip, the junction of sealing strip and connecting portion has the tear slot that sets up along the circumference outside wall, the opening outer edge of lower casing is outwardly provided with the bead along the circumference, the bead is located the junction of sealing strip and connecting portion, and the junction of sealing strip and connecting portion has the recess that is adapted to the bead with the inner wall, sealing strip has two end portions, and one end portion is pull part. The utility model adopts the structure of portable sealing strip to be opened rapidly in a short time to the packing box, and the cooperation of extruding sealing ring and bead and recess can all realize the air tightness of packing box.

Description

Technical Field

[0001] This utility model relates to the field of sealed packaging boxes, and in particular to a convenient sealed packaging box. Background Technology

[0002] Chemical oxygen-generating respirators require sealed packaging due to their inherent characteristics. Poor airtightness of the packaging can lead to deterioration of the oxygen-generating agent, product failure, and insufficient protection time. Currently, most chemical oxygen-generating respirators achieve airtightness through metal clamps, but these clamps are prone to scratches and require complex handling during use. Utility Model Content

[0003] To address the problems of easy scratching and complex operation in existing sealing structures, this invention provides a convenient sealed packaging box.

[0004] This utility model is achieved through the following technical solution: a convenient sealed packaging box, including a lower shell with an opening at the top and an upper shell that is fastened to the lower shell and has an opening at the bottom. The outer edge of the opening of the upper shell is provided with an inverted L-shaped connecting part protruding circumferentially. A circumferential groove is formed between the connecting part and the outer edge of the opening of the upper shell. One side of the connecting part is connected and engaged with the upper shell. The other side of the connecting part extends downward and is provided with a sealing strip. The outer wall of the junction of the sealing strip and the connecting part has a tear groove provided circumferentially. The outer edge of the opening of the lower shell is provided with a rib circumferentially. The rib is located at the junction of the sealing strip and the connecting part, and the inner wall of the junction of the sealing strip and the connecting part has a groove adapted to the rib. The opening of the lower shell can extend into the groove. The sealing strip has two ends, one of which is a pull part.

[0005] As a further improvement to the technical solution of this utility model, the upper surface of the rib is an inclined structure that facilitates guiding and cooperating with the inner wall of the sealing strip, and the lower surface of the rib is a planar structure that stops and cooperates with the inner wall of the groove.

[0006] As a further improvement to the technical solution of this utility model, a sealing ring is provided in the slot to seal with the opening of the lower housing.

[0007] As a further improvement to the technical solution of this utility model, the outer wall of the opening of the lower housing is provided with a boss that cooperates with the sealing strip stop.

[0008] As a further improvement to the technical solution of this utility model, the pulling part has an opening ring.

[0009] As a further improvement to the technical solution of this utility model, the upper edge of the opening of the lower housing is tapered to seal with the sealing ring.

[0010] As a further improvement to the technical solution of this utility model, at least one pair of fixing grooves are provided on the outer wall of the lower housing at opposite positions.

[0011] As a further improvement to the technical solution of this utility model, the inner wall of the lower housing is provided with a product mounting part.

[0012] The convenient sealed packaging box provided by this utility model has the following advantages compared with the prior art:

[0013] This invention employs a convenient sealing strip structure, allowing the packaging box to be quickly opened in a short time. The airtightness of the packaging box is improved through the compression of the sealing ring and the cooperation of the ribs and grooves. This invention replaces the existing metal clamp sealing structure, solving the problems of easy scratching, heavy weight, and complex operation associated with existing metal clamps. It achieves a lightweight and easy-to-use packaging box while maintaining airtightness, demonstrating high innovative value. This invention has been applied to the packaging of emergency escape chemical oxygen respirators, solving the problems of poor sealing, high product failure rates, and complex opening of existing oxygen respirator packaging boxes. It achieves excellent sealing, no failure within the four-year shelf life, and easy opening. Furthermore, this packaging box is simple to operate and easy to produce during the manufacturing and assembly process, with low cost and significant economic benefits. This invention can also be applied to the sealing packaging of chemical oxygen self-rescue respirators for coal mines and fire-fighting chemical oxygen respirators, as well as the sealing of aerospace, army, navy, and air force equipment, and the sealing packaging of civilian airtight products. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram showing the external structure of a convenient sealed packaging box according to the present invention.

[0017] Figure 2 This diagram illustrates the fit between the upper and lower housings.

[0018] Figure 3 This is a schematic diagram showing the external structure of the upper shell.

[0019] Figure 4This is a schematic diagram of the internal structure of the upper shell.

[0020] Figure 5 This is a schematic diagram of the internal structure of the lower shell.

[0021] Figure 6 This is a schematic diagram of the external structure of the lower shell.

[0022] In the figure: 1-upper housing, 101-connecting part, 102-slot, 103-sealing strip, 104-tear groove, 105-groove, 106-opening ring, 2-lower housing, 201-protruding rib, 202-bore, 203-fixing groove, 204-product mounting part. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0024] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. 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 the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0026] The specific embodiments of this utility model will be described in detail below.

[0027] like Figures 1 to 6As shown, this utility model provides a specific embodiment of a convenient sealed packaging box, including a lower shell 2 with an opening at the top and an upper shell 1 that is fastened to the lower shell 2 and has an opening at the bottom. An inverted L-shaped connecting portion 101 protrudes circumferentially from the outer edge of the opening of the upper shell 1. A circumferential groove 102 is formed between the connecting portion 101 and the outer edge of the opening of the upper shell 1. One side of the connecting portion 101 is connected and engaged with the upper shell 1, and the other side of the connecting portion 101 extends downwards to provide a sealing... The outer wall of the junction between the sealing strip 103 and the connecting part 101 has a tear groove 104 arranged circumferentially. The outer edge of the opening of the lower housing 2 is provided with a rib 201 arranged circumferentially. The rib 201 is located at the junction of the sealing strip 103 and the connecting part 101. The inner wall of the junction between the sealing strip 103 and the connecting part 101 has a groove 105 that matches the rib 201. The opening of the lower housing 2 can be inserted into the slot 102. The sealing strip 103 has two ends, one of which is a pull part.

[0028] In this embodiment, since the junction of the sealing strip 103 and the connecting part 101 between the tear groove 104 and the groove 105 is relatively thin, the sealing strip 103 is pulled in the tearing direction by the pulling part, and the junction of the sealing strip 103 and the connecting part 101 is broken. After the sealing strip 103 is pulled from one end to the other end, the groove 105 is divided, the rib 201 loses the limitation of the groove 105, and the upper shell 1 and the lower shell 2 are unlocked. The product inside the packaging box can be taken out by lifting the upper shell 1. The operation is simple and quick.

[0029] In some examples of this utility model, the rib 201 can be a rib structure of various shapes such as square, round, equilateral, trapezoidal, irregular, etc., and is suitable for packaging boxes of columnar, cuboid, cube, spherical, conical, spindle and other shapes.

[0030] To facilitate the installation of the rib 201 in the groove 105, the upper surface of the rib 201 is a sloping structure that facilitates guiding and engaging with the inner wall of the sealing strip 103, and the lower surface of the rib 201 is a planar structure that engages with the inner wall of the groove 105.

[0031] To facilitate the installation of the rib 201 and the opening of the sealing strip 103, the packaging box of this utility model is applicable to rubber and plastic materials with the same properties, such as PP, PC, PA, PET, PE, and PU.

[0032] In some examples of this utility model, in order to improve the airtightness between the upper housing 1 and the lower housing 2, a sealing ring 301 is provided in the slot 102 to seal against the opening of the lower housing 2. In this embodiment, the sealing ring 301 can be a rubber sealing ring with a spindle-shaped cross-section.

[0033] To facilitate the assembly of the upper housing 1 and the lower housing 2, the outer wall of the opening of the lower housing 2 is provided with a boss 202 that engages with the sealing strip 103. During assembly, the upper housing 1 is fastened onto the lower housing 2. When the sealing strip 103 contacts the boss 202 and engages with it, the raised rib 201 engages with the groove 105, and the opening of the lower housing 2 extends into the slot 102 and engages with the sealing ring 301 inside for a sealing fit.

[0034] To facilitate pulling the sealing strip 103, the pulling part has an opening ring 106. Since the opening ring 106 is relatively easy to apply force, the sealing strip 103 can be torn open simply by hooking the opening ring 106, making the pulling of the sealing strip 103 effortless and convenient.

[0035] like Figure 2 As shown, the upper edge of the opening of the lower housing 2 is tapered and seals with the sealing ring 301.

[0036] Furthermore, at least one pair of fixing strap grooves 203 are provided on the outer wall of the lower housing 2 at opposite positions. A hanging strap or a back strap can be installed in the fixing strap groove 203. The packaging box can be hung to the application site by the hanging strap, and the packaging box can be carried on the back of the person by the back strap for easy carrying.

[0037] In some examples, to prevent damage to the product inside the packaging box due to up-and-down movement during transportation or carrying, the inner wall of the lower housing 2 is provided with a product mounting part 204. Specifically, the product mounting part 204 has bolt holes, through which the product can be fixedly mounted inside the packaging box.

[0038] This utility model, featuring a sealing ring 301 and a sealing strip 103, has been applied to the packaging of emergency escape chemical oxygen respirators. Convenient sealed packaging boxes were manufactured using PP and ABS materials (three samples of each, each numbered). The sealing ring is made of natural rubber. The testing method was performed according to 6.6.2 of GB 24502 ​​standard. The sealing performance test results are shown in Table 1 below.

[0039] Table 1. Air tightness test results of portable sealed packaging boxes

[0040]

[0041] As can be seen from the table above, the convenient sealed packaging box described in this utility model has good airtightness and complies with relevant regulations.

[0042] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A convenient sealed packaging box, comprising a lower shell (2) with an opening at the top and an upper shell (1) fastened to the lower shell (2) and having an opening at the bottom, characterized in that, The outer edge of the opening of the upper housing (1) is provided with an inverted L-shaped connecting part (101) protruding circumferentially. A circumferential groove (102) is formed between the connecting part (101) and the outer edge of the opening of the upper housing (1). One side of the connecting part (101) is connected and engaged with the upper housing (1). A sealing strip (103) is provided extending downward from the other side of the connecting part (101). The outer wall of the junction between the sealing strip (103) and the connecting part (101) has a tear-off surface arranged circumferentially. The lower housing (2) has a groove (104) and a rib (201) is provided circumferentially on the outer edge of the opening. The rib (201) is located at the junction of the sealing strip (103) and the connecting part (101). The inner wall of the junction of the sealing strip (103) and the connecting part (101) has a groove (105) that matches the rib (201). The opening of the lower housing (2) can be inserted into the slot (102). The sealing strip (103) has two ends, one of which is a pull part.

2. The convenient sealed packaging box according to claim 1, characterized in that, The upper surface of the rib (201) is an inclined structure that facilitates guiding and cooperating with the inner wall of the sealing strip (103), and the lower surface of the rib (201) is a planar structure that stops and cooperates with the inner wall of the groove (105).

3. A convenient sealed packaging box according to claim 1 or 2, characterized in that, The slot (102) is provided with a sealing ring (301) that seals with the opening of the lower housing (2).

4. A convenient sealed packaging box according to claim 1 or 2, characterized in that, The lower housing (2) has a boss (202) on the outer wall of the opening that is in contact with the sealing strip (103).

5. A convenient sealed packaging box according to claim 1 or 2, characterized in that, The pull part has an opening ring (106).

6. A convenient sealed packaging box according to claim 3, characterized in that, The upper edge of the opening of the lower housing (2) is conical and is sealed to fit with the sealing ring (301).

7. A convenient sealed packaging box according to claim 1 or 2, characterized in that, At least one pair of fixing grooves (203) are provided on the outer wall of the lower housing (2) at opposite positions.

8. A convenient sealed packaging box according to claim 1 or 2, characterized in that, The lower housing (2) has a product mounting section (204) on its inner wall.

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