Food packaging polyethylene blow molding barrel

Abstract

The utility model discloses a polyethylene blow molding barrel for food packaging, which relates to the technical field of packaging barrels and comprises a barrel body, a barrel opening is fixedly arranged at the top end of the barrel body, the section of the barrel opening is of an inverted L-shaped structure, a barrel cover is arranged above the barrel opening, and a sealing ring is fixedly arranged at the bottom end of the outer side wall of the barrel cover. And the section of the sealing ring is of an L-shaped structure, and a sealing cover is fixedly arranged in the middle of the lower surface of the barrel cover. The barrel opening is formed in the top end of the barrel body, the barrel cover is arranged above the barrel opening, the sealing ring matched with the barrel opening is arranged on the outer side of the barrel cover, the sealing cover is arranged in the middle of the lower surface of the barrel cover, the inserting rods capable of extending outwards are arranged on the outer side of the sealing cover, and the inserting rods can extrude the barrel opening after extending out. Compared with sealing through threads, the food packaging barrel has the advantages of being better in air tightness and more suitable for food packaging.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging barrels, in particular to a polyethylene blow-molded barrel for food packaging. Background Technique

[0002] Plastic barrels are mostly used for dangerous goods packaging and have good characteristics. They are not easily broken, do not rust, are lightweight, etc., and have excellent oil resistance and strong corrosion resistance. They are mostly used for the packaging of dangerous goods that require heat preservation, moisture protection, pressure resistance, and corrosion resistance. Plastic barrel materials are mostly made of polyethylene, polypropylene, etc. by blow molding and injection molding, and are widely used in the outer packaging of liquid and solid items in industries such as chemical industry, pesticides, medicine, food, hardware electronics, and mechanical and electrical.

[0003] For example, a polyethylene blow-molded barrel with high sealing and moisture protection, with the publication number CN214650397U, includes a barrel body and a barrel cover. Its characteristics are: a moisture protection cavity and an elastic mechanism are provided on the barrel cover. A moisture protection pad package is provided in the moisture protection cavity. Above the moisture protection cavity, there is a top cover sealed by a buckle. The top cover is used to replace the moisture protection pad package in the moisture protection cavity after being opened. The elastic mechanism is located at the bottom of the moisture protection cavity and includes an elastic plate and a top spring. The elastic mechanism is used to connect the barrel body and the moisture protection cavity; compared with the existing blow-molded barrels of the prior art, the moisture protection cavity is in a sealed state when the barrel cover is separated from the barrel body, avoiding the meaningless consumption of the moisture protection pad package. When in use, the moisture protection cavity is connected to the internal space by tightening the barrel cover to play a moisture protection role. The elastic mechanism is also used to enhance the sealing effect of the barrel cover. The transparent top cover is used to observe the moisture protection package and quickly replace the moisture protection pad package. The elastic mechanism of the present utility model is ingeniously designed, has a simple structure, and excellent effects, greatly improving the sealing effect and extending the service life.

[0004] The above technical solution realizes the connection between the barrel cover and the barrel body by means of threaded connection in practical applications. However, it is difficult to ensure the sealing performance of the threaded connection, especially when applied to the field of food packaging, it is difficult to ensure the airtightness after food storage.

[0005] Therefore, it is very necessary to invent a polyethylene blow-molded barrel for food packaging to solve the above problems. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a polyethylene blow-molded barrel for food packaging to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: A polyethylene blow-molded barrel for food packaging, comprising a barrel body, a barrel mouth is fixedly provided at the top of the barrel body, and the cross-section of the barrel mouth is set in a "┌" structure. A barrel cover is provided above the barrel mouth. A sealing ring is fixedly provided at the bottom end of the outer side wall of the barrel cover, and the cross-section of the sealing ring is set in an "L" structure. A sealing cover is fixedly provided in the middle of the lower surface of the barrel cover. A plurality of slots are circumferentially opened on the outer side wall of the sealing cover. A plug rod is inserted into the inside of the slot, and an inclined surface is provided at the top end of the outer side wall of the plug rod. An extrusion surface corresponding to the plug rod is provided at the bottom end of the inner side wall of the barrel mouth. A plurality of fixing frames are fixedly provided inside the sealing cover. The plug rod penetrates through the inside of the fixing frame. An activity seat is provided inside the sealing cover. A plurality of connecting arms are circumferentially provided on the outer side wall of the activity seat through a pin shaft, and the bottom end of the connecting arm is movably connected to one end of the plug rod through a pin shaft.

[0008] Preferably, a threaded groove is penetrated through the middle of the activity seat, and an adjusting screw rod is penetrated through the inside of the threaded groove.

[0009] Preferably, the bottom end of the adjusting screw rod is movably provided inside the sealing cover through a bearing, and the top end of the adjusting screw rod extends above the barrel cover.

[0010] Preferably, a sealing groove in a ring structure is opened in the middle of the inner side wall of the sealing ring, and the cross-section of the sealing groove is set in a semi-circular structure.

[0011] Preferably, a rubber ring is sleeved on the top end of the outer side wall of the sealing cover, and the cross-section of the rubber ring is set in a circular structure corresponding to the sealing groove.

[0012] Preferably, a turntable is fixedly provided at the top end of the adjusting screw rod, and the turntable is arranged above the barrel cover.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. In the present utility model, by providing a barrel mouth at the top of the barrel body, a barrel cover is provided above the barrel mouth, and a sealing ring adapted to the barrel mouth is provided on the outer side of the barrel cover. By providing a sealing cover in the middle of the lower surface of the barrel cover, a plurality of plug rods that can extend outwards are provided on the outer side of the sealing cover. After the plug rods extend out, they can squeeze the barrel mouth, so that the barrel cover and the barrel mouth are tightly pressed against each other to achieve a sealing effect. Compared with sealing by threads, this technical solution has the advantages of better airtightness and being more suitable for food packaging.

[0015] 2. In the present utility model, by opening a sealing groove in a semi-circular structure on the inner side of the barrel mouth and providing a rubber ring corresponding to the sealing groove at the top end of the outer side of the sealing cover, when the barrel cover seals the barrel mouth, the rubber ring can be inserted into the sealing groove to ensure the sealing effect between the barrel cover and the barrel mouth, thereby ensuring the airtightness when storing food. Brief Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 This is a schematic sectional view of the overall structure of the present utility model.

[0018] Figure 3 This is the Figure 2 schematic enlarged view of the structure at position A in the present utility model.

[0019] Figure 4 This is a schematic sectional view of the barrel structure of the present utility model.

[0020] Figure 5 This is a schematic diagram of the seal cover structure of the present utility model.

[0021] Figure 6 This is a schematic internal view of the seal cover structure of the present utility model.

[0022] In the figure: 1, barrel body; 2, barrel mouth; 3, barrel cover; 4, sealing ring; 5, seal cover; 6, slot; 7, insertion rod; 8, extrusion surface; 9, fixed frame; 10, movable seat; 11, connecting arm; 12, thread groove; 13, adjusting screw; 14, sealing groove; 15, rubber ring; 16, turntable. Detailed Description of the Preferred Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides a Figure 1-6 food packaging polyethylene blow-molded barrel as shown in the figure, including a barrel body 1. A barrel mouth 2 is fixedly provided at the top of the barrel body 1, and the cross-section of the barrel mouth 2 is set as a "┌" structure. A barrel cover 3 is provided above the barrel mouth 2. A sealing ring 4 is fixedly provided at the bottom end of the outer side wall of the barrel cover 3, and the cross-section of the sealing ring 4 is set as an "L" - shaped structure. The sealing ring 4 can be engaged with the barrel mouth 2 to achieve the sealing between the barrel cover 3 and the barrel mouth 2.

[0025] Specifically, a sealing cover 5 is fixedly arranged in the middle of the lower surface of the bucket cover 3. A plurality of slots 6 are circumferentially formed on the outer side wall of the sealing cover 5. A plug rod 7 is inserted into the inside of the slot 6. The top end of the outer side wall of the plug rod 7 is provided with an inclined surface. The bottom end of the inner side wall of the bucket opening 2 is provided with a pressing surface 8 corresponding to the plug rod 7. A plurality of fixing frames 9 are fixedly arranged inside the sealing cover 5. The plug rod 7 is inserted through the inside of the fixing frame 9. An activity seat 10 is arranged inside the sealing cover 5. A plurality of connecting arms 11 are circumferentially arranged on the outer side wall of the activity seat 10 through a pin shaft. The bottom end of the connecting arm 11 is movably connected to one end of the plug rod 7 through a pin shaft. The activity seat 10 can drive the plug rod 7 to move through the connecting arm 11, so that the plug rod 7 slides inside the fixing frame 9. During the horizontal sliding process of the plug rod 7, the inclined surface at one end thereof can press the pressing surface 8, so that the plug rod 7 drives the sealing cover 5 to move downward;

[0026] More specifically, a threaded groove 12 is formed through the middle of the activity seat 10. An adjusting screw rod 13 is inserted through the inside of the threaded groove 12. The bottom end of the adjusting screw rod 13 is movably arranged inside the sealing cover 5 through a bearing. The top end of the adjusting screw rod 13 extends above the bucket cover 3. A turntable 16 is fixedly arranged at the top end of the adjusting screw rod 13. The turntable 16 is arranged above the bucket cover 3. The arrangement of the turntable 16 facilitates the user to rotate the adjusting screw rod 13;

[0027] Moreover, an annular sealing groove 14 is formed in the middle of the inner side wall of the sealing ring 4. The cross section of the sealing groove 14 is arranged in a semicircular structure. A rubber ring 15 is sleeved on the top end of the outer side wall of the sealing cover 5. The cross section of the rubber ring 15 is arranged in a circular structure corresponding to the sealing groove 14. The cooperation between the rubber ring 15 and the sealing groove 14 can improve the sealing performance between the bucket opening 2 and the bucket cover 3.

[0028] The working principle of the utility model:

[0029] When the device is in use, food can be put into the bucket body 1 through the bucket opening 2. The bucket cover 3 can be placed above the bucket opening 2. By pressing down the bucket cover 3, the sealing ring 4 outside the bucket cover 3 is sleeved outside the bucket opening 2, and the sealing ring 4 is clamped with the bucket opening 2. By rotating the turntable 16, the adjusting screw rod 13 can be rotated. The cooperation between the adjusting screw rod 13 and the threaded groove 12 can realize the adjustment of the position of the activity seat 10. The activity seat 10 can drive the plug rod 7 to move through the connecting arm 11, so that the plug rod 7 slides inside the fixing frame 9. During the horizontal sliding process of the plug rod 7, the inclined surface at one end thereof can press the pressing surface 8, so that the plug rod 7 drives the sealing cover 5 to move downward, and the sealing cover 5 can drive the bucket cover 3 to move downward to ensure the sealing effect between the bucket cover 3 and the bucket opening 2.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A polyethylene blow-molded barrel for food packaging, comprising a barrel body (1), characterized in that: The top of the barrel body (1) is fixedly provided with a barrel mouth (2), and the cross section of the barrel mouth (2) is set to a "┌" structure. A barrel cover (3) is arranged above the barrel mouth (2). A sealing ring (4) is fixedly arranged at the bottom end of the outer wall of the barrel cover (3), and the cross section of the sealing ring (4) is set to an "L"-shaped structure. A sealing cover (5) is fixedly arranged in the middle of the lower surface of the barrel cover (3). The outer wall of the sealing cover (5) is surrounded by a plurality of slots (6). The slots (6) are provided with plug rods (7) inserted inside, and the plug rods (7) are inserted into the slots (6). The top end of the outer wall of the barrel mouth (2) is provided with an inclined surface, the bottom end of the inner wall of the barrel mouth (2) is provided with an extrusion surface (8) corresponding to the insertion rod (7), a plurality of fixed frames (9) are fixedly provided inside the sealing cover (5), the insertion rod (7) is penetrated and arranged inside the fixed frames (9), a movable seat (10) is provided inside the sealing cover (5), the outer wall of the movable seat (10) is provided with a plurality of connecting arms (11) surrounded by a pin shaft, and the bottom end of the connecting arm (11) is movably connected to one end of the insertion rod (7) through the pin shaft.

2. A polyethylene blow-molded barrel for food packaging according to claim 1, characterized in that: A thread groove (12) is provided through the middle of the movable seat (10), and an adjusting screw rod (13) is provided through the interior of the thread groove (12).

3. A polyethylene blow-molded barrel for food packaging according to claim 2, characterized in that: The bottom end of the adjusting screw rod (13) is movably arranged inside the sealing cover (5) via a bearing, and the top end of the adjusting screw rod (13) extends to the top of the barrel cover (3).

4. A polyethylene blow-molded barrel for food packaging according to claim 3, characterized in that: A sealing groove (14) with an annular structure is provided in the middle of the inner side wall of the sealing ring (4), and the cross section of the sealing groove (14) is arranged to be a semicircular structure.

5. A polyethylene blow-molded barrel for food packaging according to claim 4, characterized in that: A rubber ring (15) is sleeved on the top end of the outer wall of the sealing cover (5), and the cross section of the rubber ring (15) is arranged to be a circular structure corresponding to the sealing groove (14).

6. A polyethylene blow-molded barrel for food packaging according to claim 5, characterized in that: A turntable (16) is fixedly arranged at the top end of the adjusting screw rod (13), and the turntable (16) is arranged above the barrel cover (3).

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