Ventilation structure of moisture-proof packaging carton

Abstract

The utility model relates to a ventilation structure of a moisture-proof packaging carton, which belongs to the technical field of packaging cartons and comprises a carton body, a bottom plate is fixed on the lower surface of the carton body, and a carton cover is arranged on the upper surface of the carton body. Ventilation mechanisms for ventilation of an inner cavity of the carton body are arranged at the left and right ends of the top and the bottom of the carton body and the left and right ends of the outer surface of the carton cover, and fixing mechanisms for fixing the carton cover are arranged at the left and right ends of the lower surface of the carton cover; the ventilation mechanism comprises ventilation holes formed in the left and right ends and the bottom of the top of the carton body and the left and right ends of the outer surface of the carton cover. According to the ventilation structure of the moisture-proof packaging carton, the bottom plate, the moisture-proof plate and the waterproof breathable film can effectively prevent water vapor from entering in the ventilation process, the service life of the carton body is protected, and the inner cavity of the carton body can be in a ventilation state through the arranged ventilation mechanism; therefore, the requirement for ventilation of objects placed in the carton is met.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging cartons, in particular to a ventilation structure of a moisture-proof packaging cartons. Background Art

[0002] Cartons are the most widely used packaging products. Depending on the materials used, there are corrugated boxes, single-layer cardboard boxes, etc., with various specifications and models. Commonly used cartons are three-layer and five-layer, and seven-layer is less used. Each layer is divided into lining paper, corrugated paper, core paper, and face paper. The lining and face paper are tea board paper and kraft paper, and the core paper is corrugated paper. The color and feel of various papers are different, and the paper produced by different manufacturers (color, feel) is also different.

[0003] Through searching, it was found that Chinese patent publication number: CN220097259U discloses a ventilated packaging carton, including a carton body, a top cover and a ventilation buckle. The carton body includes a bottom plate and four side plates connected to the edge of the bottom plate. A ventilation slot is provided at the upper edge of the carton body. A buckled top cover is provided on the top of the carton body. A buckled ventilation buckle is provided on the edge of the top cover. A buckled card is provided on the outer wall surface of the ventilation buckle. A ventilation hole is provided inside the ventilation buckle. A rotatably connected air guide plate is provided inside the ventilation hole. A rotating shaft is fixedly connected to the middle of the air guide plate. The two ends of the rotating shaft are respectively The utility model is rotatably connected to the inner wall of the ventilation hole. The utility model utilizes the carton body, the top cover and the ventilation clips to form a ventilated packaging carton, which can effectively realize air circulation inside and outside the carton to meet the packaging needs of items with high ventilation conditions. The ventilation clips with snap-fit connections are provided on the side walls of the carton body and the top cover to improve the packaging strength and stability of the packaging box. However, the ventilation holes and air guide plates set up in the utility model make the moisture-proof performance of the carton body poor, thereby reducing the service life of the carton body and causing the items placed in the carton body to get damp, resulting in economic losses and reducing practicality. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a ventilation structure for a moisture-proof packaging carton, which has the advantages of good ventilation effect, etc., and solves the problem that the moisture-proof performance of the carton body is poor due to the set ventilation holes and air guides, thereby reducing the service life of the carton body, and causing the items placed in the carton body to get damp, resulting in economic losses and reduced practicality.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a ventilation structure for a moisture-proof packaging carton, comprising a carton body, a bottom plate fixed to the lower surface of the carton body, a box cover provided on the upper surface of the carton body, ventilation mechanisms for ventilating the inner cavity of the carton body are provided at the left and right ends and the bottom of the top of the carton body and at the left and right ends of the outer surface of the box cover, and fixing mechanisms for fixing the box cover are provided at the left and right ends of the lower surface of the box cover;

[0006] The ventilation mechanism includes ventilation holes opened at the left and right ends and the bottom of the top of the carton body and the left and right ends of the outer surface of the box cover, the inner cavity of the ventilation holes is fixed with a waterproof breathable membrane, and a fixing frame is fixed to the inner cavity of the ventilation holes at the bottom of the carton body and the left and right ends of the outer surface of the box cover and in front of the waterproof breathable membrane. The inner cavity of the fixing frame is provided with a connecting frame, and a number of air guide plates are obliquely arranged between the opposite sides of the left and right side walls of the inner cavity of the connecting frame. Cavities are opened at the top and bottom of the left and right side walls of the inner cavity of the connecting frame, and return springs are fixed at the upper and lower ends of the opposite sides of the cavities at the left and right ends, and movable plates are fixed at the opposite sides of the return springs at the left and right ends, and plugs are fixed at the opposite sides of the movable plates on the left and right sides, and slots are opened at the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the fixed frame.

[0007] Furthermore, handles are fixed on both the front and rear sides of the carton body, a moisture-proof plate is fixed on the inner side wall of the carton body, and the cross-sectional shape of the bottom plate is U-shaped.

[0008] Furthermore, the size of the connecting frame is adapted to the size of the inner cavity of the fixing frame, and a plurality of the air guide plates are evenly distributed between opposite sides of the left and right side walls of the inner cavity of the connecting frame.

[0009] Furthermore, through holes are provided at the upper and lower ends of the left and right sides of the connection frame, and the size of the inner cavity of the through hole is adapted to the size of the plug-in block, and the size of the plug-in block is adapted to the size of the inner cavity of the slot.

[0010] Furthermore, the fixing mechanism includes connecting plates fixed at the left and right ends of the lower surface of the box cover, and mounting plates are fixed on the left and right sides of the carton body. Fixing grooves are provided on the upper surface of the mounting plates and directly below the connecting plates. Telescopic rods are fixed at the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the two mounting plates, and compression springs are provided on the movable sleeves of the outer surfaces of the telescopic rods. Moving plates are fixed on the opposite sides of the telescopic rods at the left and right ends, and the two ends of the compression springs are respectively fixedly connected to the opposite sides of the mounting plate and the moving plate, and clamping rods are fixed at the upper and lower ends of the opposite sides of the two moving plates.

[0011] Furthermore, the size of the inner cavity of the fixing groove is adapted to the size of the mounting plate, and a clamping hole is provided on the top and bottom of the left side of the mounting plate, and the inner diameter of the clamping hole is adapted to the outer diameter of the clamping rod.

[0012] Furthermore, a pull rod is fixed at the center of the opposite sides of the two movable plates, and the other end of the pull rod passes through the mounting plate and extends to the side away from the mounting plate. A card slot is provided at the top and bottom of the opposite sides of the fixed grooves at the left and right ends, and the inner diameter of the card slot is adapted to the outer diameter of the card rod.

[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0014] 1. The ventilation structure of the moisture-proof packaging carton, the bottom plate, the moisture-proof plate and the waterproof breathable membrane can effectively isolate the entry of water vapor during the ventilation process, thereby protecting the service life of the carton body. In addition, the ventilation mechanism can keep the inner cavity of the carton body in a ventilated state to meet the ventilation needs of the items placed in the carton.

[0015] 2. The ventilation structure of the moisture-proof packaging carton is equipped with a fixing mechanism on the lower surface of the box cover, which can limit and fix the position of the connecting plate, so that the box cover is fixed on the top of the carton body, and is convenient for staff to use and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the ventilation mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the appearance structure of the carton body of the utility model;

[0019] Figure 4 This is a structural diagram of the fixing mechanism of the utility model.

[0020] In the figure: 1 carton body, 2 bottom plate, 3 box cover, 4 ventilation mechanism, 401 ventilation hole, 402 waterproof breathable membrane, 403 fixing frame, 404 connecting frame, 405 air guide plate, 406 rebound spring, 407 movable plate, 408 plug-in block, 409 slot, 5 fixing mechanism, 501 connecting plate, 502 mounting plate, 503 fixing slot, 504 telescopic rod, 505 compression spring, 506 movable plate, 507 clamping rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1 In this embodiment, a ventilation structure of a moisture-proof packaging carton includes a carton body 1, a bottom plate 2 is fixed to the lower surface of the carton body 1, a box cover 3 is provided on the upper surface of the carton body 1, and ventilation mechanisms 4 for ventilating the inner cavity of the carton body 1 are provided at the left and right ends and the bottom of the top of the carton body 1 and the left and right ends of the outer surface of the box cover 3, and fixing mechanisms 5 for fixing the box cover 3 are provided at the left and right ends of the lower surface of the box cover 3.

[0023] Among them, handles are fixed on the front and back sides of the carton body 1, a moisture-proof plate is fixed on the inner wall of the carton body 1, and the cross-sectional shape of the bottom plate 2 is U-shaped. The bottom plate 2 and the moisture-proof plate can effectively isolate the entry of moisture during ventilation.

[0024] See also Figures 2 to 3 In order to keep the inner cavity of the carton body 1 in a ventilated state, the ventilation mechanism 4 in this embodiment includes ventilation holes 401 opened at the left and right ends and the bottom of the top of the carton body 1 and the left and right ends of the outer surface of the box cover 3. The inner cavity of the ventilation hole 401 is fixed with a waterproof breathable membrane 402. Air can enter the inner cavity of the ventilation hole 401 through the guidance of the air guide plate 405, and then enter the inner cavity of the carton body 1 through the waterproof breathable membrane 402, and then can be dispersed through the ventilation holes 401 on the other side, so that the inner cavity of the carton body 1 can be kept in a ventilated state.

[0025] In this embodiment, a fixing frame 403 is fixed to the inner cavity of the ventilation holes 401 at the bottom of the carton body 1 and the ventilation holes 401 at the left and right ends of the outer surface of the box cover 3 and located in front of the waterproof breathable membrane 402, and the inner cavity of the fixing frame 403 is provided with a connecting frame 404, and a number of air guide plates 405 are obliquely arranged between the opposite sides of the left and right side walls of the inner cavity of the connecting frame 404, and cavities are provided on the top and bottom of the left and right side walls of the inner cavity of the connecting frame 404, and return springs 406 are fixed to the upper and lower ends of the opposite sides of the left and right cavities, and movable plates 407 are fixed to the opposite sides of the return springs 406 at the left and right ends. Insert blocks 408 are fixed on the opposite sides of the movable plate 407, and slots 409 are provided at the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the fixed frame 403. The movable plate 407 is moved toward the side close to the air guide plate 405. The movement of the movable plate 407 compresses the return spring 406, so that the insert block 408 on the other side of the movable plate 407 enters the inner cavity of the cavity. Then, the above steps are performed in sequence to remove the connecting frame 404 from the inner cavity of the fixed frame 403 for cleaning or replacement, and clean the dust on the surface of the waterproof breathable membrane 402 to prevent dust from adhering to the waterproof breathable membrane 402 and affecting the passage of air.

[0026] Among them, the size of the connecting frame 404 is adapted to the size of the inner cavity of the fixed frame 403, and a number of air guide plates 405 are evenly distributed between the opposite sides of the left and right side walls of the inner cavity of the connecting frame 404. Through holes are opened at the upper and lower ends of the left and right sides of the connecting frame 404. The size of the inner cavity of the through holes is adapted to the size of the plug block 408, and the size of the plug block 408 is adapted to the size of the inner cavity of the slot 409.

[0027] It should be noted that a push block with one end penetrating and extending to the outer surface of the connecting frame 404 is fixed on the outer surface of the movable plate 407. A guide hole is opened on the outer surface of the connecting frame 404, and the push block performs horizontal linear motion in the inner cavity of the guide hole.

[0028] See also Figure 4In order to fix the box cover 3 on the top of the carton body 1, the fixing mechanism 5 in this embodiment includes connecting plates 501 fixed to the left and right ends of the lower surface of the box cover 3, and mounting plates 502 are fixed on the left and right sides of the carton body 1. The upper surface of the mounting plate 502 and the lower side of the connecting plate 501 are both provided with fixing grooves 503. The upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the two mounting plates 502 are fixed with telescopic rods 504. The outer surface of the telescopic rod 504 is movably sleeved with a compression spring 505. A movable plate 506 is fixed on the opposite side of the telescopic rods 504 at both ends, and the two ends of the compression spring 505 are fixedly connected to the opposite side of the mounting plate 502 and the movable plate 506. A clamping rod 507 is fixed on the upper and lower ends of the opposite side of the two movable plates 506, so that the two movable plates 506 move back to back. The movement of the movable plate 506 causes the telescopic rod 504 and the compression spring 505 to be squeezed and shortened, so that the clamping rod 507 fixed on one side of the movable plate 506 can enter the inner cavity of the mounting plate 502.

[0029] The size of the inner cavity of the fixing groove 503 is adapted to the size of the mounting plate 502 , and a clamping hole is provided on the top and bottom of the left side of the mounting plate 502 , and the inner diameter of the clamping hole is adapted to the outer diameter of the clamping rod 507 .

[0030] In this embodiment, a pull rod is fixed at the center of the opposite sides of the two movable plates 506, and the other end of the pull rod passes through the mounting plate 502 and extends to the side away from the mounting plate 502. The top and bottom of the opposite sides of the fixed grooves 503 at the left and right ends are provided with card slots, and the inner diameter of the card slot is adapted to the outer diameter of the card rod 507.

[0031] It can be understood that when the two pull rods are loosened, the compression spring 505 is not restricted and can drive the telescopic rod 504 to extend, further making the two movable plates 506 move relative to each other, thereby driving the two card rods 507 to enter the inner cavity of the card slot through the card hole, thereby limiting the position of the two connecting plates 501, and fixing the box cover 3 on the upper surface of the carton body 1, which is convenient for staff to use.

[0032] The working principle of the above embodiment is:

[0033] When the box cover 3 is fixed on the upper surface of the carton body 1, the two connecting plates 501 at the left and right ends of the lower surface of the box cover 3 can be aligned with the inner cavity of the fixing groove 503, and the pull rods on both sides are pulled to move to the side away from the mounting plate 502, so that the two movable plates 506 move away from each other. The movement of the movable plate 506 causes the telescopic rod 504 and the compression spring 505 to be squeezed and shortened, so that the clamping rod 507 fixed on one side of the movable plate 506 can enter the inner cavity of the mounting plate 502, and the box cover 3 is pressed downward so that the bottom of the two connecting plates 501 is completely inserted into the fixing groove 503, and the two pull rods are released. At this time, the compression spring 505 is not restricted and can drive the telescopic rod 504 to extend, further making the two movable plates 506 move relative to each other, thereby driving the two clamping rods 507 to enter the inner cavity of the clamping groove through the clamping hole, thereby limiting the position of the two connecting plates 501, and the box cover 3 can be fixed on the upper surface of the carton body 1.

[0034] (2) Air can enter the inner cavity of the ventilation hole 401 through the guidance of the air guide plate 405, and then enter the inner cavity of the carton body 1 through the waterproof breathable membrane 402, and then be dispersed through the ventilation hole 401 on the other side, so that the inner cavity of the carton body 1 can be in a ventilated state. In order to prevent a large amount of dust from adhering to the surface of the air guide plate 405, the connecting frame 404 can be disassembled and cleaned regularly, and the movable plate 407 can be moved to the side close to the air guide plate 405. The movement of the movable plate 407 causes the return spring 406 to be compressed, so that the plug 408 on the other side of the movable plate 407 enters the inner cavity of the cavity. Then, the above steps are performed in sequence, and the connecting frame 404 can be disassembled and cleaned or replaced from the inner cavity of the fixed frame 403, and the dust on the surface of the waterproof breathable membrane 402 can be cleaned.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A ventilation structure for a moisture-proof packaging carton, comprising a carton body (1), characterized in that: A bottom plate (2) is fixed to the lower surface of the carton body (1), a box cover (3) is provided on the upper surface of the carton body (1), ventilation mechanisms (4) for ventilating the inner cavity of the carton body (1) are provided at the left and right ends of the top and bottom of the carton body (1) and the left and right ends of the outer surface of the box cover (3), and fixing mechanisms (5) for fixing the box cover (3) are provided at the left and right ends of the lower surface of the box cover (3); The ventilation mechanism (4) comprises ventilation holes (401) provided at the left and right ends and the bottom of the top of the carton body (1) and the left and right ends of the outer surface of the box cover (3); the inner cavity of the ventilation holes (401) is fixed with a waterproof breathable membrane (402); the inner cavity of the ventilation holes (401) at the bottom of the carton body (1) and the ventilation holes (401) at the left and right ends of the outer surface of the box cover (3) and located in front of the waterproof breathable membrane (402) is fixed with a fixing frame (403); the inner cavity of the fixing frame (403) is provided with a connecting frame (404); the inner cavity of the connecting frame (404) is fixed with a waterproof breathable membrane (402) at the left and right ends. A plurality of air guide plates (405) are obliquely arranged between the opposite sides of the two side walls, the top and bottom of the left and right side walls of the inner cavity of the connecting frame (404) are provided with cavities, the upper and lower ends of the opposite sides of the left and right cavities are fixed with return springs (406), the opposite sides of the return springs (406) on the left and right sides are fixed with movable plates (407), the opposite sides of the movable plates (407) on the left and right sides are fixed with plug blocks (408), and the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the fixed frame (403) are provided with slots (409).

2. The ventilation structure of a moisture-proof packaging carton according to claim 1, characterized in that: Handles are fixed on both the front and rear sides of the carton body (1), a moisture-proof plate is fixed on the inner side wall of the carton body (1), and the cross-section of the bottom plate (2) is U-shaped.

3. The ventilation structure of a moisture-proof packaging carton according to claim 1, characterized in that: The size of the connecting frame (404) is adapted to the size of the inner cavity of the fixing frame (403), and the plurality of air guide plates (405) are evenly distributed between the left and right side walls of the inner cavity of the connecting frame (404) on opposite sides.

4. The ventilation structure of a moisture-proof packaging carton according to claim 1, characterized in that: Through holes are provided at both upper and lower ends of the left and right sides of the connection frame (404), and the size of the inner cavity of the through hole is adapted to the size of the plug block (408), and the size of the plug block (408) is adapted to the size of the inner cavity of the slot (409).

5. The ventilation structure of a moisture-proof packaging carton according to claim 1, characterized in that: The fixing mechanism (5) comprises connecting plates (501) fixed to the left and right ends of the lower surface of the box cover (3); the left and right sides of the carton body (1) are fixed with mounting plates (502); the upper surface of the mounting plate (502) and located directly below the connecting plate (501) are provided with fixing grooves (503); the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the two mounting plates (502) are fixed with telescopic rods (504); the outer surface of the telescopic rod (504) is movably sleeved with a compression spring (505); the opposite sides of the telescopic rods (504) at the left and right ends are fixed with movable plates (506); the two ends of the compression spring (505) are respectively fixedly connected to the opposite sides of the mounting plate (502) and the movable plate (506); the upper and lower ends of the opposite sides of the two movable plates (506) are fixed with clamping rods (507).

6. The ventilation structure of a moisture-proof packaging carton according to claim 5, characterized in that: The size of the inner cavity of the fixing groove (503) is adapted to the size of the mounting plate (502), and a clamping hole is provided at the top and bottom of the left side of the mounting plate (502), and the inner diameter of the clamping hole is adapted to the outer diameter of the clamping rod (507).

7. The ventilation structure of a moisture-proof packaging carton according to claim 5, characterized in that: A pull rod is fixed at the center of the opposite sides of the two movable plates (506), and the other end of the pull rod passes through the mounting plate (502) and extends to a side away from the mounting plate (502). A card slot is provided at the top and bottom of the opposite sides of the fixed grooves (503) at the left and right ends, and the inner diameter of the card slot is adapted to the outer diameter of the card rod (507).

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