Hot-filling plastic container

Abstract

The utility model provides a hot filling plastic container, which relates to the technical field of plastic containers and comprises a pipe body, an end cover and a bottom cover, the end cover and the bottom cover are detachably arranged at the upper end and the lower end of the pipe body respectively, the upper end of the pipe body is in threaded assembly connection with the end cover, a sealing gasket is arranged on the inner side of the end cover, and the sealing gasket is connected with the bottom cover. The bottom cover is of an annular structure and is arranged on the lower portion of the interior of the pipe body in a sealed mode, a feeding port is formed in the lower end of the pipe body, an end plug is arranged in the bottom cover in a sealed mode, and a reinforcing piece is arranged at the end, away from the interior of the pipe body, of the bottom cover. The plastic material and the pipe body are adopted, the situation that recovery cannot be achieved due to extrusion deformation is avoided, and meanwhile the upside-down filling structure is used, so that the upper end of a product is smoother and more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic containers, in particular to a hot-filled plastic container. Background Art

[0002] For example, an inverted hot-fill transparent plastic container with a hand grip and having a publication number of "CN210556207U" comprises: a bottle mouth, a bottle body and a bottle bottom, wherein the bottle body is hollow and shaped like an elliptical cylinder as a whole, and narrows from the middle part of the bottle body toward the bottle bottom and the bottle mouth, and a hand grip is provided on the bottle body along the elliptical major axis direction of the cross section, and the hand grip is wavy; the bottle bottom is an elliptical plane, which is convenient for placing it in an upright position during canning on the production line, and a groove is also provided at the bottom of the bottle for absorbing the vacuum at the bottom; the bottle mouth is cylindrical, and a thread is provided at the bottle mouth. The hot-fill transparent plastic container of the utility model adopts an inverted extrusion design, which is convenient for squeezing out the contents in the container, and it is easy to control the extrusion outflow according to the pressure applied, and the bottle body adopts a hand grip design, which is convenient for picking up and squeezing, and is not easy to slip out of the hand.

[0003] When filling gel products, the method of directly opening the cap on the tube body for filling is generally adopted. After the solution cools down, the cooled product on the tube body is prone to dents, affecting the product quality and appearance. In addition, when filling the tube body made of metal material, the tube body is prone to deformation, which causes the internal product to deform or be squeezed out, affecting the product quality.

[0004] Direct pouring at the container mouth requires secondary manual pouring, which has high labor costs and is difficult to control the amount of pouring. Manual pouring and natural cooling outside the equipment are exposed to the outside for a long time, which is prone to secondary pollution and the quality cannot be guaranteed. Therefore, the utility model proposes a hot-filled plastic container to solve the problems existing in the prior art. Utility Model Content

[0005] In view of the above problems, the utility model proposes a hot-filled plastic container, which adopts plastic material and tube body to avoid irreversible deformation caused by extrusion, and uses an inverted filling structure to make the upper end of the product more flat and beautiful.

[0006] In order to solve the above-mentioned problems, the utility model proposes a hot-filled plastic container, comprising a tube body, an end cover and a bottom cover, wherein the end cover and the bottom cover are detachably arranged at the upper and lower ends of the tube body respectively, the upper end of the tube body is threadedly assembled with the end cover, a sealing gasket is provided on the inner side of the end cover, the bottom cover is an annular structure and is sealed with the lower part of the interior of the tube body, a feed port is opened at the lower end of the tube body, an end plug is sealed inside the bottom cover, and a reinforcing sheet is provided at the end of the bottom cover away from the interior of the tube body.

[0007] A further improvement is that the bottom cover comprises an inner ring and an outer ring, the inner ring and the outer ring are assembled and connected by a connecting ring, the lower end of the inner ring is assembled and connected to the end plug, the outer side of the outer ring is slidably arranged with the outer wall of the tube body, and through the cooperation of the outer ring and the inner ring, the accommodating space between the inner ring and the outer ring above the connecting ring can be increased, so that the liquid product and the bottom cover fit better.

[0008] A further improvement is that the connecting ring is located in the middle and lower part of the inner ring and the outer ring, a plurality of reinforcing sheets are provided and arranged in a ring shape, and one end of the reinforcing sheet is assembled and connected to the upper part of the inner ring.

[0009] A further improvement is that sealing rings are respectively provided at the upper and lower ends of the outer side of the outer ring, and the sealing rings are sealingly and slidingly arranged with the inner wall of the tube body. The provided sealing rings can prevent the product from flowing into the gap between the outer ring and the tube body when the liquid product is added, causing the gap to be unusable and wasteful when the product is used up.

[0010] A further improvement is that: a plurality of first clamping blocks are provided below the connecting ring, a plurality of the first clamping blocks are provided and are evenly arranged in a ring shape, a second clamping block which is compatible with the first clamping block is provided inside the lower end of the tube body, and the clamping force between the first clamping block and the second clamping block is relatively weak. When the first clamping block and the second clamping block are engaged, the limit between the bottom cover and the tube body is achieved. When the product is used, the bottom cover can be pushed to separate the first clamping block from the second clamping block.

[0011] Further improvements are: the outer side of the lower end of the inner ring located below the connecting ring is snap-fitted and assembled with the end plug, a slot is provided above the inner ring, a limiting slot is provided on the outer wall of the inner ring below the slot, a snap ring is provided at the upper end of the inner end of the end plug that is snap-fitted with the slot, and a limiting strip that is slidably fitted with the limiting slot is provided below the snap ring. The snap ring and the slot are snapped together to facilitate the closing of the end plug and the bottom cover, and the limiting strip and the limiting slot are slidably fitted together to facilitate the end plug to limit and prevent rotation. When in use, the end plug can be pushed to drive the bottom cover to move upward, thereby driving the product on the bottom cover to move upward, which is convenient to use.

[0012] A further improvement is that a longitudinal reinforcement strip is provided on the outer wall of the tube body, and a plurality of the longitudinal reinforcement strips are evenly arranged, and a transverse reinforcement strip is provided on the outer wall of the tube body. Through the cooperation of the longitudinal reinforcement strips and the transverse reinforcement strips, the firmness of the tube body can be increased, and the tube body can be prevented from being easily deformed due to extrusion during transportation, thereby ensuring the quality of the internal product.

[0013] The lower end of the longitudinal reinforcement strip extends to the top of the bottom cover, and the outer wall of the bottom cover is provided with a strip groove slidably adapted to the longitudinal reinforcement strip. The provided strip groove facilitates the bottom cover to slide up and down, and cooperates with the provided sealing ring to ensure the sealing of the bottom cover.

[0014] The height of the end cap is one quarter of the height of the tube body, so that the end cap and the tube body are more firmly covered.

[0015] The height of the outer ring is adapted to the height of the reinforcing sheet.

[0016] The beneficial effects of the utility model are as follows: when the hot-filled plastic container is assembled to the tube body, the bottom cover is first slid from the upper end of the tube body into the interior of the tube body and sealed with the bottom of the tube body. After installation, the sealing gasket is placed in the end cover, and the end cover is threadedly assembled and connected with the upper end of the tube body. After assembly, the tube body is inverted so that the feed port at the lower end of the cover body is set upward, and a proper amount of liquid is injected into the tube body. The solidified liquid is fully in contact with the reinforcing sheet under the bottom cover, so that the reinforcing sheet and the solidified product body form a whole, making the product more stable in the tube body and avoiding falling off. After the liquid solidifies, the end plug is sealed and covered at the center position of the bottom cover. The entire installation operation is simple, and the end cover can be opened during normal use. This method avoids the phenomenon of depression and unevenness of the product at the upper end of the tube body after positive pouring of liquid. Through the cooperation of the longitudinal reinforcement strip and the transverse reinforcement strip, the firmness of the tube body can be increased, and the situation that the tube body is easily deformed due to extrusion during transportation of the tube body can be avoided, thereby ensuring the quality of the internal product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the pipe body of the utility model.

[0020] Figure 4 It is a schematic diagram of the disassembly of the bottom cover and the end plug of the utility model.

[0021] Figure 5 It is a cross-sectional view of the end plug of the utility model.

[0022] Among them: 1. Tube body; 2. End cover; 3. Bottom cover; 4. Sealing gasket; 5. Feed port; 6. End plug; 7. Reinforcement sheet; 8. Inner ring; 9. Outer ring; 10. Connecting ring; 11. Sealing ring; 12. First clamping block; 13. Second clamping block; 14. Clamping ring; 15. Clamping groove; 16. Limiting groove; 17. Limiting strip; 18. Longitudinal reinforcement strip; 19. Horizontal reinforcement strip; 20. Strip groove. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0024] according to Figure 1 , 2 As shown in Figures 3, 4 and 5, this embodiment provides a hot-fill plastic container, comprising a tube body 1, an end cover 2 and a bottom cover 3, wherein the end cover 2 and the bottom cover 3 are detachably arranged at the upper and lower ends of the tube body 1 respectively, the upper end of the tube body 1 is threadedly assembled with the end cover 2, a sealing gasket 4 is arranged on the inner side of the end cover 2, the bottom cover 3 is annular in structure and is sealed with the lower part of the interior of the tube body 1, a feed port 5 is opened at the lower end of the tube body 1, an end plug 6 is sealed inside the bottom cover 3, and a reinforcing sheet 7 is arranged at the end of the bottom cover 3 away from the interior of the tube body 1.

[0025] The bottom cover 3 includes an inner ring 8 and an outer ring 9, the inner ring 8 and the outer ring 9 are assembled and connected by a connecting ring 10, the lower end of the inner ring 8 is assembled and connected to the end plug 6, and the outer side of the outer ring 9 is slidably arranged with the outer wall of the tube body 1. Through the cooperation between the outer ring 9 and the inner ring 8, the accommodating space between the inner ring 8 and the outer ring 9 above the connecting ring 10 can be increased, so that the liquid product and the bottom cover 3 are more closely fitted.

[0026] The connecting ring 10 is located in the middle and lower part between the inner ring 8 and the outer ring 9 . The reinforcing sheets 7 are provided in plurality and are distributed in a ring shape. One end of the reinforcing sheet 7 is assembled and connected to the upper part of the inner ring 8 .

[0027] Sealing rings 11 are respectively provided at the upper and lower ends of the outer side of the outer ring 9. The sealing rings 11 are sealingly slidably arranged with the inner wall of the tube body 1. The sealing rings 11 are arranged to prevent the product from flowing into the gap between the outer ring 9 and the tube body 1 when the liquid product is added, resulting in the situation that the gap cannot be used when the product is used up, causing waste.

[0028] A plurality of first clamping blocks 12 are provided below the connecting ring 10. The first clamping blocks 12 are provided in plurality and are evenly arranged in a ring shape. A second clamping block 13 which is clamped and matched with the first clamping block 12 is provided inside the lower end of the tube body 1. The clamping force between the first clamping block 12 and the second clamping block 13 is relatively weak. When the first clamping block 12 and the second clamping block 13 are clamped, the limit between the bottom cover 3 and the tube body 1 is achieved. When the product is used, the bottom cover 3 is pushed to separate the first clamping block 12 from the second clamping block 13 on the bottom cover 3.

[0029] The outer side of the lower end of the inner ring 8 located below the connecting ring 10 is engaged and assembled with the end plug 6, a groove 15 is provided above the inner ring 8, a limiting groove 16 is provided on the outer wall of the inner ring 8 below the groove 15, a snap ring 14 is provided on the upper end of the inner part of the end plug 6 to fit with the groove 15, and a limiting strip 17 is provided below the snap ring 14 to slide with the limiting groove 16. The engagement of the snap ring 14 with the groove 15 facilitates the closing of the end plug 6 and the bottom cover 3. The sliding fit of the limiting strip 17 with the limiting groove 16 facilitates the limiting of the end plug 6 to prevent rotation. When in use, the end plug 6 can be pushed to drive the bottom cover 3 to move upward, thereby driving the product on the bottom cover 3 to move upward, which is convenient for use.

[0030] The inner wall of the tube body 1 is provided with a longitudinal reinforcement strip 18, and a plurality of the longitudinal reinforcement strips 18 are evenly arranged. The outer wall of the tube body 1 is provided with a transverse reinforcement strip 19. Through the cooperation of the longitudinal reinforcement strip 18 and the transverse reinforcement strip 19, the firmness of the tube body 1 can be increased, and the tube body 1 can be prevented from being easily deformed due to extrusion during transportation, thereby ensuring the quality of the internal product.

[0031] The lower end of the longitudinal reinforcement strip 18 extends to the top of the bottom cover 3, and the outer wall of the bottom cover 3 is provided with a strip groove 20 slidably adapted to the longitudinal reinforcement strip 18. The strip groove 20 is provided to facilitate the up and down sliding of the bottom cover 3, and cooperates with the sealing ring 11 to ensure the sealing of the bottom cover 3.

[0032] The height of the end cap 2 is one quarter of the height of the tube body 1 , so that the end cap 2 and the tube body 1 are more firmly covered.

[0033] The height of the outer ring 9 is adapted to the height of the reinforcing sheet 7 .

[0034] When the hot-filled plastic container is assembled to the tube body 1, the bottom cover 3 is first slid into the tube body 1 from the upper end of the tube body 1 and sealed with the bottom of the tube body 1. After installation, the sealing gasket 4 is placed in the end cover 2, and the end cover 2 is threadedly assembled and connected with the upper end of the tube body 1. After assembly, the tube body 1 is inverted so that the feed port 5 at the lower end of the cover is set upward, and an appropriate amount of liquid is injected into the tube body 1. The solidified liquid is in full contact with the reinforcement sheet 7 under the bottom cover 3, so that the reinforcement sheet 7 and the solidified product body form a whole, making the product more stable in the tube body 1 and avoiding falling off. After the liquid solidifies, the end plug 6 is sealed and covered with the center position of the bottom cover 3. The entire installation operation is simple, and the end cover 2 can be opened during normal use. This method avoids the phenomenon of depression and unevenness of the product at the upper end of the tube body 1 after positive pouring of liquid, wherein the tube body 1 is made of plastic.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hot-fill plastic container, comprising a tube body (1), an end cover (2) and a bottom cover (3), wherein the end cover (2) and the bottom cover (3) are detachably arranged at the upper and lower ends of the tube body (1), respectively, and characterized in that: The upper end of the tube body (1) is threadedly assembled with the end cover (2), a sealing gasket (4) is provided on the inner side of the end cover (2), the bottom cover (3) is annular in structure and is sealed with the lower part of the tube body (1), a feed port (5) is provided at the lower end of the tube body (1), an end plug (6) is provided inside the bottom cover (3), and a reinforcing sheet (7) is provided at one end of the bottom cover (3) away from the inside of the tube body (1).

2. A hot-filled plastic container according to claim 1, characterized in that: The bottom cover (3) comprises an inner ring (8) and an outer ring (9), the inner ring (8) and the outer ring (9) are assembled and connected via a connecting ring (10), the lower end of the inner ring (8) is assembled and connected to the end plug (6), and the outer side of the outer ring (9) is slidably arranged with the outer wall of the tube body (1).

3. A hot-filled plastic container according to claim 2, characterized in that: The connecting ring (10) is located in the middle and lower part of the inner ring (8) and the outer ring (9), a plurality of reinforcing sheets (7) are provided and are arranged in a ring shape, and one end of the reinforcing sheet (7) is assembled and connected to the upper part of the inner ring (8).

4. A hot-filled plastic container according to claim 3, characterized in that: Sealing rings (11) are respectively provided at the upper and lower ends of the outer side of the outer ring (9), and the sealing ring (11) is sealingly slidably arranged with the inner wall of the tube body (1).

5. A hot-filled plastic container according to claim 4, characterized in that: A plurality of first clamping blocks (12) are provided below the connecting ring (10); the first clamping blocks (12) are provided in plurality and are evenly arranged in a ring shape; and a second clamping block (13) which is adapted to fit the first clamping block (12) is provided inside the lower end of the tube body (1).

6. A hot-filled plastic container according to claim 5, characterized in that: The outer side of the lower end of the inner ring (8) located below the connecting ring (10) is snap-fitted and assembled with the end plug (6); a snap groove (15) is provided above the inner ring (8); a limiting groove (16) is provided on the outer wall of the inner ring (8) below the snap groove (15); a snap ring (14) snap-fitted with the snap groove (15) is provided at the upper end of the end plug (6); a limiting strip (17) slidably fitted with the limiting groove (16) is provided below the snap ring (14).

7. A hot-filled plastic container according to claim 1, characterized in that: The inner wall of the tube body (1) is provided with a longitudinal reinforcement strip (18), wherein a plurality of longitudinal reinforcement strips (18) are evenly arranged, and the outer wall of the tube body (1) is provided with a transverse reinforcement strip (19).

8. A hot-filled plastic container according to claim 7, characterized in that: The lower end of the longitudinal reinforcing strip (18) extends to the top of the bottom cover (3), and the outer wall of the bottom cover (3) is provided with a strip groove (20) that is slidably matched with the longitudinal reinforcing strip (18).

9. A hot-filled plastic container according to claim 1, characterized in that: The height of the end cover (2) is one quarter of the height of the tube body (1).

10. A hot-filled plastic container according to claim 2, characterized in that: The height of the outer ring (9) is adapted to the height of the reinforcing sheet (7).

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