Fixing structure of liquid packaging box

Abstract

The utility model discloses a fixing structure of a liquid packaging box, which comprises a box body and a flexible storage bag, a bottom cover and a top cover are arranged on the box body, a discharge port is arranged on the flexible storage bag, a sealing cover is arranged on the discharge port, an exhaust hole is arranged on the sealing cover, a gas permeable membrane is arranged on the exhaust hole, and the top cover comprises a main cover plate. A fixing groove is formed in the main cover plate, an auxiliary fixing plate is arranged in the fixing groove in a matched mode, fixing notches are further formed in the auxiliary fixing plate and the fixing groove respectively, and the shape of the spliced fixing notch in the auxiliary fixing plate and the shape of the spliced fixing notch in the fixing groove are the same as the shape of the section of the discharging port. The fixing structure is arranged on the carton, the fixing structure is in a blocked state before being used, and the material opening can be fixed when the fixing structure is used; a grip groove in the carton box can better control the carton box; the sealing cover is provided with the exhaust hole covered with the gas permeable membrane, gas can be exhausted when the storage bag is expanded, and meanwhile liquid is prevented from flowing out.

Description

Technical Field

[0001] This utility model belongs to the field of liquid packaging box technology, and in particular relates to a fixing structure for liquid packaging boxes. Background Technology

[0002] For a long time, large liquid products exceeding 10 liters in volume and 10 kilograms in weight have mostly used plastic containers as outer packaging. This is costly, inconvenient to transport, difficult to recycle, wasteful, and detrimental to environmental protection. Since the emergence of a new liquid packaging method using a bag-in-a-box as the inner packaging and a cardboard box as the outer packaging, it has been favored by various industries, and products using this packaging method have appeared one after another. Although this packaging method is novel and low-cost, it is inconvenient to pour the liquid out of the bag, and it is easy to spill during the pouring process. Therefore, it reduces consumers' choice of this packaging.

[0003] Therefore, we designed a fixed structure for liquid packaging boxes to solve these problems. Utility Model Content

[0004] The problem this invention aims to solve is to provide a fixed structure for liquid packaging boxes, achieving an effective combination of the bag-in-box and the outer packaging carton.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A fixed structure for a liquid packaging box includes a box body and a flexible storage bag. The box body is provided with a bottom cover and a top cover. The flexible storage bag is provided with a discharge port. The discharge port is provided with a sealing cover. The sealing cover is provided with a vent hole. A gas permeation membrane is provided on the vent hole. The top cover includes a main cover plate. The main cover plate is provided with a fixing groove. An auxiliary fixing plate is matched and provided in the fixing groove. The auxiliary fixing plate and the fixing groove are also provided with fixing notches. The shape of the fixing notch on the auxiliary fixing plate and the fixing notch on the fixing groove after being spliced ​​is the same as the cross-sectional shape of the discharge port. The side wall of the box body away from the fixing groove is provided with a handle groove. A sealing plate is matched and provided in the handle groove.

[0007] Preferably, there are two main cover plates, which are respectively fixed on a set of opposite side walls of the housing, and the fixing groove is provided on one of the main cover plates.

[0008] Furthermore, the top cover also includes two sub-cover plates, which are respectively fixed to another set of opposite side walls of the housing, and the two sub-cover plates are provided with notches on the side near the fixing groove.

[0009] Preferably, a reinforcing plate is also fixedly installed on the inner wall of the box where the grip groove is provided.

[0010] Preferably, a connecting ring plate, a lower retaining ring, and an upper retaining ring are fixedly fitted on the feed port. The lower retaining ring is located between the upper retaining ring and the connecting ring plate. The feed port is sealed to the flexible storage bag through the connecting ring plate. The distance between the lower retaining ring and the upper retaining ring is not less than the thickness of the main cover plate.

[0011] Preferably, the sealing cap is threadedly connected to the feed port, and a sealing ring is fitted inside the sealing cap, with the gas permeation membrane sealed to the sealing ring.

[0012] Furthermore, the sealing plate is also provided with an auxiliary opening slot, and an opening slot cover plate is provided inside the auxiliary opening slot.

[0013] Preferably, a sealing plate is provided inside the fixing notch on the fixing groove and the fixing notch on the auxiliary fixing plate after they are joined together.

[0014] The advantages and positive effects of this utility model are:

[0015] This invention features a fixing groove structure on the cardboard box that matches the discharge port. The fixing groove structure is sealed by a matching cover plate, and the discharge port can be fixed by an auxiliary fixing plate after the cover plate is opened. The cardboard box can be lifted by the handle groove, which facilitates control of liquid pouring and prevents liquid from spilling during pouring. At the same time, the sealing cover is also provided with a vent hole to release gas when the storage bag expands. The gas permeable membrane on the vent hole can prevent liquid from flowing out during venting. Attached Figure Description

[0016] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the box of this utility model;

[0018] Figure 2 This is a schematic diagram of the external structure of the enclosure after the present invention is packaged.

[0019] Figure 3 This is a schematic diagram of the auxiliary cover plate structure when the fixing groove of this utility model is opened;

[0020] Figure 4 This is a schematic diagram of the external structure of the box after the material inlet is fixed according to this utility model;

[0021] Figure 5 This is a cross-sectional view of the inside of the box before the feed inlet is fixed.

[0022] Figure 6 This is a cross-sectional schematic diagram of the box body after the material outlet is fixed according to this utility model;

[0023] Figure 7 yes Figure 6 Enlarged schematic diagram of the structure at point A in the diagram;

[0024] Figure 8 yes Figure 7 Enlarged schematic diagram of the structure at point B in the diagram.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Box body; 2. Bottom cover; 3. Top cover; 4. Flexible storage bag; 5. Material inlet; 6. Connecting ring plate; 7. Upper retaining ring; 8. Lower retaining ring; 9. Sealing cover; 10. Vent hole; 11. Gas permeation membrane; 12. Secondary cover plate; 13. Notch; 14. Main cover plate; 15. Fixing groove; 16. Sealing plate; 17. Auxiliary fixing plate; 18. Handle groove; 19. Sealing groove plate; 20. Reinforcing plate; 21. Auxiliary opening groove; 22. Opening groove cover plate; 23. Easy tear line; 24. Fixing notch; 25. Sealing ring. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] Example 1: Figure 1 As shown, a fixed structure for a liquid packaging box includes a box body 1 and a flexible storage bag 4. The box body 1 is provided with a bottom cover 2 and a top cover 3. The flexible storage bag 4 is provided with a discharge port 5. The discharge port 5 is provided with a sealing cover 9. The sealing cover 9 is provided with a vent 10. The vent 10 is provided with a gas permeation membrane 11. The top cover 3 includes a main cover plate 14. The main cover plate 14 is provided with a fixing groove 15. An auxiliary fixing plate 17 is matched and provided in the fixing groove 15. The auxiliary fixing plate 17 and the fixing groove 15 are also provided with fixing notches 23 respectively. The shape of the fixing notches 23 on the auxiliary fixing plate 17 and the fixing notches 23 on the fixing groove 15 after being spliced ​​is the same as the cross-sectional shape of the discharge port 5. A handle groove 18 is provided on the side wall of the box body 1 away from the fixing groove 15. A sealing plate 19 is matched and provided in the handle groove 18.

[0031] Specifically, there are two main cover plates 14, which are fixed on a set of opposite side walls of the box body 1 respectively. The fixing groove 15 is set on one of the main cover plates 14, so that the material port 5 can be installed on the main cover plate 14.

[0032] Furthermore, the top cover 3 also includes two sub-cover plates 12, which are respectively fixed on another set of opposite side walls of the box body 1. The strength of the top cover 3 can be increased by adding sub-cover plates 12, and a notch 13 is provided on the side of the two sub-cover plates 12 near the fixing groove 15. The notch 13 can avoid the material port 5 on the flexible storage bag 4, so that the material port 5 can be connected and fixed to the main cover plate 14 through the fixing groove 15.

[0033] Specifically, a reinforcing plate 20 is also fixedly installed on the inner wall of the box 1 where the grip groove 18 is provided, which can reinforce the grip groove 18 on the box 1.

[0034] Specifically, a connecting ring plate 6, a lower retaining ring 8, and an upper retaining ring 7 are fixedly installed on the feed port 5. The lower retaining ring 8 is located between the upper retaining ring 7 and the connecting ring plate 6. The feed port 5 is sealed to the flexible storage bag 4 through the connecting ring plate 6. The distance between the lower retaining ring 8 and the upper retaining ring 7 is not less than the thickness of the main cover plate 14.

[0035] Specifically, the sealing cap 9 and the material port 5 are connected by threads to facilitate the connection between the sealing cap 9 and the material port 5. A sealing ring 24 is also fitted inside the sealing cap 9. The gas permeation membrane 11 is sealed to the sealing ring 24. The sealing ring 24 can seal the joint between the sealing cap 9 and the material port 5.

[0036] Specifically, the sealing plate 19 is also provided with an auxiliary opening groove 21, and an opening groove cover plate 21 is provided inside the auxiliary opening groove 21, so that the grip groove 18 can be opened through the auxiliary opening groove 21.

[0037] Specifically, after the fixing notch 23 on the fixing groove 15 and the fixing notch 23 on the auxiliary fixing plate 17 are assembled, a sealing plate 16 is provided inside.

[0038] The working process of this embodiment is as follows: When in use, liquid material is filled into the flexible storage bag 4 through the feed port 5. After filling, the sealing cap 9 is placed on the feed port 5. The sealing ring 24 can prevent the liquid in the flexible storage bag 4 from leaking out from the joint between the feed port 5 and the sealing cap 9. Then, the auxiliary cover plate 12 is placed on top, and then the main cover plate 14 is placed on top.

[0039] At this time, the sealing plate 19 is fixed in the handle groove 18 by the easy-tear line 22, and the sealing plate 16 and the auxiliary fixing plate 17 are also connected to the fixing groove 15 by the easy-tear line 22. When needed, first tear the sealing plate 16 and the auxiliary fixing plate 17 in the fixing groove 15 on the main cover plate 14 along the easy-tear line 22, and then tear the sealing plate 16 off the auxiliary fixing plate 17. Next, pull the material port 5 on the flexible storage bag 4 out from the fixing groove 15, and with the upper retaining ring 7 on the material port 5 above the main cover plate 14 and the lower retaining ring 8 below the main cover plate 14, the material port 5 is locked on the fixing notch 23 on the fixing groove 15. Then, the auxiliary fixing plate 17 is slightly bent so that the fixing notch 23 on the auxiliary fixing plate 17 is locked between the upper retaining ring 7 and the lower retaining ring 8 to fix the material port 5. Finally, tear the sealing plate 19 on the handle groove 18 along the easy-tear line 22 and push it into the box 1. At this time, the box 1 can be lifted through the two handle grooves 18 to pour out the liquid.

[0040] If the sealing plate 19 is too large and difficult to tear, you can first tear the smaller opening slot cover 21 on the sealing plate 19 along the easy tear line 22. Then, insert your fingers into the auxiliary opening slot 21 and hook the sealing plate 19. At this time, it is easier to exert force and tear the sealing plate 19 along the easy tear line 22. After tearing, the sealing plate 19 can be pushed into the box 1 through the handle slot 18, which makes it easier to grip.

[0041] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A fixed structure for a liquid packaging box, comprising a box body (1) and a flexible storage bag (4), wherein the box body (1) is provided with a bottom cover (2) and a top cover (3), characterized in that: The flexible storage bag (4) is provided with a discharge port (5), the discharge port (5) is provided with a sealing cover (9), the sealing cover (9) is provided with a vent (10), the vent (10) is provided with a gas permeation membrane (11), the top cover (3) includes a main cover plate (14), the main cover plate (14) is provided with a fixing groove (15), the fixing groove (15) is matched with an auxiliary fixing plate (17), the auxiliary fixing plate (17) and the fixing groove (15) are also provided with fixing notches (23), and the shape of the fixing notches (23) on the auxiliary fixing plate (17) and the fixing notches (23) on the fixing groove (15) after being spliced ​​together is the same as the cross-sectional shape of the discharge port (5). The side wall of the box (1) away from the fixing groove (15) is provided with a handle groove (18), and the handle groove (18) is matched with a sealing plate (19).

2. The fixing structure for a liquid packaging box according to claim 1, characterized in that: There are two main cover plates (14), and the two main cover plates (14) are respectively fixed on a set of opposite side walls of the box body (1). The fixing groove (15) is set on one of the main cover plates (14).

3. The fixing structure of a liquid packaging box according to claim 2, characterized in that: The top cover (3) also includes two sub-cover plates (12), which are respectively fixed on another set of opposite side walls of the box (1), and the two sub-cover plates (12) are provided with notches (13) on the side near the fixing groove (15).

4. The fixing structure of a liquid packaging box according to claim 1, characterized in that: A reinforcing plate (20) is also fixedly installed on the inner wall of the housing (1) which is provided with the grip groove (18).

5. The fixing structure of a liquid packaging box according to claim 1, characterized in that: The feed inlet (5) is fixedly fitted with a connecting ring plate (6), a lower retaining ring (8) and an upper retaining ring (7). The lower retaining ring (8) is located between the upper retaining ring (7) and the connecting ring plate (6). The feed inlet (5) is sealed to the flexible storage bag (4) through the connecting ring plate (6). The distance between the lower retaining ring (8) and the upper retaining ring (7) is not less than the thickness of the main cover plate (14).

6. The fixing structure of a liquid packaging box according to claim 1, characterized in that: The sealing cap (9) is connected to the feed port (5) by a thread. A sealing ring (24) is also fitted inside the sealing cap (9). The gas permeation membrane (11) is sealed to the sealing ring (24).

7. The fixing structure for a liquid packaging box according to claim 1, characterized in that: The sealing plate (19) is also provided with an auxiliary opening groove (21), and an opening groove cover plate (21) is provided inside the auxiliary opening groove (21).

8. The fixing structure of a liquid packaging box according to claim 1, characterized in that: When the fixing notch (23) on the fixing groove (15) and the fixing notch (23) on the auxiliary fixing plate (17) are joined together, a sealing plate (16) is provided inside.

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