Polyester bottle with high pressure resistance

Abstract

The utility model relates to a polyester bottle with high pressure resistance. The problems that in the prior art, a drinking water plastic bottle is low in structural strength and particularly prone to being punctured or damaged under external acting force, and water leakage is caused are solved. The bottle comprises a bottle body, a pressure-resistant bottle opening is formed in the upper end of the bottle body, a pressure-resistant bottle base is arranged at the lower end of the bottle body, a sliding part is arranged at the upper end of the bottle body, a pressure-resistant part is arranged at the lower end of the bottle body, a flexible telescopic holding structure is arranged between the pressure-resistant part and the sliding part, and the sliding part is provided with a sliding sleeve body structure capable of covering the flexible telescopic holding structure after sliding. The utility model has the advantages of good structural toughness, excellent strength, better compression resistance effect and low possibility of damage.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottles, in particular to a high-pressure-resistant polyester bottle. Background Art

[0002] Most plastic drinking water bottles on the market consist of a conventional cap with internal threads interlocked with a bottle body with external threads on the neck. The corners where the cylindrical cap meets the flat plate typically use a circular arc transition, often with large arcs. This is done to address stress concentration issues, but also because the cap requires injection molding and thread processing, which requires a thicker wall. The corner radius is proportional to the wall thickness, increasing the radius requirement. This large corner radius reduces the cap's panel area, making it difficult to stack plastic bottles and reducing stacking stability. Furthermore, existing plastic drinking water bottles have low structural strength, making them particularly susceptible to puncture or damage from external forces, leading to leaks.

[0003] To address the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, Chinese patent document CN201320702362.6 discloses a plastic bottle, which includes a bottle cap and a bottle body. The bottle cap includes an upper cover and a lower cover, and the lower cover is nested in the upper cover. The upper cover is provided with a limiting protrusion, and the lower cover is provided with a plurality of convex and concave parts distributed equidistantly around the circumference. The protrusions and concave parts form a gear shape. The limiting protrusions of the upper cover engage with the concave parts of the lower cover, making the lower cover relatively stationary. Rotating the upper cover can drive the lower cover to rotate, thereby opening the bottle cap.

[0004] The above solution solves the problem in the prior art that drinking water plastic bottles are difficult to stack and have poor stacking stability to a certain extent. However, the solution still has many shortcomings, such as low structural strength and being particularly easy to be punctured or damaged by external forces, resulting in leakage. Summary of the Invention

[0005] The purpose of this utility model is to provide a high-pressure-resistant polyester bottle in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a highly pressure-resistant polyester bottle, comprising a bottle body, a pressure-resistant bottle mouth provided at the upper end of the bottle body and a pressure-resistant bottle seat provided at the lower end, a sliding portion provided at the upper end of the bottle body and a pressure-resistant portion provided at the lower end, a flexible telescopic gripping structure provided between the pressure-resistant portion and the sliding portion, and the sliding portion provided with a sliding sleeve structure that can cover the flexible telescopic gripping structure after sliding.

[0007] In the above-mentioned high-pressure-resistant polyester bottle, a plurality of annularly arranged bottle mouth pressure-resistant ring bodies are circumferentially arranged at the lower end of the pressure-resistant bottle mouth, and a pressure-resistant bottle cap is threadedly connected to the upper end of the pressure-resistant bottle mouth.

[0008] In the above-mentioned high-pressure-resistant polyester bottle, a pressure-relieving cavity is provided at the upper inner end of the pressure-resistant bottle cap, and the pressure-relieving cavity is closed by a rigid connector. The pressure-relieving cavity is filled with a rubber gasket, and a pressure-relieving gap is provided between the bottom of the rubber gasket and the rigid connector.

[0009] In the above-mentioned high-pressure-resistant polyester bottle, the sliding part and the pressure-resistant part have an inner layer and an outer layer, and the inner layer is a waterproof reinforcement layer, the outer layer is a wear-resistant and scratch-resistant layer, and the thickness of the inner layer is greater than that of the outer layer. A pressure-resistant air cavity is formed between the inner layer and the outer layer, and the pressure-resistant air cavity is filled with gas.

[0010] In the above-mentioned high-pressure-resistant polyester bottle, the flexible telescopic gripping structure includes an upper telescopic part connected to the bottom of the sliding part, the upper telescopic part is connected to the lower telescopic part through the gripping part, and the end of the lower telescopic part away from the gripping part is connected to the pressure-resistant part.

[0011] In the above-mentioned high-pressure-resistant polyester bottle, a recessed portion is provided circumferentially in the middle of the grip portion, and the circumferential outer walls of the upper and lower telescopic portions are connected by a plurality of elastic bands, forming an insertion gap for fingers to penetrate between the elastic bands and the recessed portion.

[0012] In the above-mentioned high-pressure-resistant polyester bottle, the sliding sleeve structure includes a sliding sleeve, which is slidably arranged on the sliding part, and a plurality of guide rails are provided on the circumferential inner side of the sliding sleeve, and a plurality of guide grooves for inserting the guide rails are provided on the circumferential outer wall of the sliding part.

[0013] In the above-mentioned high-pressure-resistant polyester bottle, an annular connecting groove for the sliding sleeve to be inserted is provided at the upper end of the pressure-resistant portion, and when the sliding sleeve is inserted into the annular connecting groove, the flexible telescopic gripping structure is circumferentially closed by the sliding sleeve.

[0014] In the above-mentioned high-pressure-resistant polyester bottle, a label portion is provided at one end of the pressure-resistant portion close to the flexible telescopic gripping structure and a plurality of reinforcing ribs are provided at the other end.

[0015] In the above-mentioned high-pressure-resistant polyester bottle, the reinforcing ribs are filled with rubber material.

[0016] Compared with the existing technology, the advantages of the present invention are: high structural strength, an inflatable middle layer structure, which effectively reduces the impact of external forces, and a pressure-resistant bottle cap is provided, and reinforcing ribs are provided circumferentially on the pressure-resistant part to improve the structural strength. Secondly, the practical sliding sleeve can provide circumferential protection for the flexible telescopic grip structure, so that the bottle body can achieve better pressure resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the structure of the sliding sleeve after sliding down in the utility model;

[0019] Figure 3 It is a cross-sectional view of the utility model;

[0020] Figure 4 It is a cross-sectional view of the pressure-resistant bottle cap in the present utility model;

[0021] Figure 5 This is a schematic diagram of the sliding sleeve structure in the utility model;

[0022] Figure 6 yes Figure 2 Cross-sectional view at AA in the middle;

[0023] In the figure: bottle body 1, pressure-resistant bottle mouth 11, pressure-resistant bottle seat 12, bottle mouth pressure-resistant ring body 13, pressure-resistant bottle cap 14, pressure-relieving cavity 141, rigid connector 142, rubber gasket 143, pressure-relieving gap 144, sliding part 2, pressure-resistant part 3, label part 31, reinforced rib 32, flexible telescopic gripping structure 4, upper telescopic part 41, gripping part 42, lower telescopic part 43, recessed part 44, elastic band 45, insertion gap 46, sliding sleeve structure 5, sliding sleeve 51, guide rail 52, guide groove 53, annular connecting groove 55, pressure-resistant air cavity 6. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] like Figure 1-6 As shown, a high-pressure-resistant polyester bottle includes a bottle body 1, a pressure-resistant bottle mouth 11 is provided at the upper end of the bottle body 1 and a pressure-resistant bottle seat 12 is provided at the lower end, a sliding part 2 is provided at the upper end of the bottle body 1 and a pressure-resistant part 3 is provided at the lower end, a flexible telescopic gripping structure 4 is provided between the pressure-resistant part 3 and the sliding part 2, and the sliding part 2 is provided with a sliding sleeve structure 5 that can cover the flexible telescopic gripping structure 4 after sliding.

[0026] Among them, a plurality of annular bottle mouth pressure-resistant ring bodies 13 are circumferentially arranged at the lower end of the pressure-resistant bottle mouth 11, and a pressure-resistant bottle cap 14 is threadedly connected to the upper end of the pressure-resistant bottle mouth 11.

[0027] The bottle mouth pressure-resistant ring body 13 is made of hard plastic, and an annular metal sheet can be inserted inside to improve the structural strength.

[0028] Obviously, a pressure-relieving cavity 141 is provided at the upper inner end of the pressure-resistant bottle cap 14, and the pressure-relieving cavity 141 is closed by a rigid connector 142. The pressure-relieving cavity 141 is filled with a rubber gasket 143, and a pressure-relieving gap 144 is provided between the bottom of the rubber gasket 143 and the rigid connector 142.

[0029] The rubber gasket 143 and the pressure-relieving gap 144 are used to improve the pressure resistance of the top of the pressure-resistant bottle cap 14 to prevent deformation when stacked.

[0030] It can be seen that the sliding part 2 and the pressure-resistant part 3 have an inner layer and an outer layer, and the inner layer is a waterproof reinforcement layer, the outer layer is a wear-resistant and scratch-resistant layer, and the thickness of the inner layer is greater than that of the outer layer. A pressure-resistant air cavity 6 is formed between the inner layer and the outer layer, and the pressure-resistant air cavity 6 is filled with gas.

[0031] The pressure-resistant air cavity 6 can buffer external impacts, prevent the inner layer from being damaged, and avoid water leakage.

[0032] Furthermore, the flexible telescopic gripping structure 4 includes an upper telescopic portion 41 connected to the bottom of the sliding portion 2 , the upper telescopic portion 41 is connected to the lower telescopic portion 43 through the gripping portion 42 , and the end of the lower telescopic portion 43 away from the gripping portion 42 is connected to the pressure-resistant portion 3 .

[0033] Furthermore, a recessed portion 44 is circumferentially provided in the middle of the grip portion 42 , and the circumferential outer walls of the upper telescopic portion 41 and the lower telescopic portion 43 are connected by a plurality of elastic bands 45 , forming an insertion gap 46 for a finger to pass through between the elastic bands 45 and the recessed portion 44 .

[0034] The flexible telescopic gripping structure 4 is provided to facilitate gripping and squeezing, and is convenient for drinking water. It can also be telescoped to change the length of the bottle body 1, and is highly practical.

[0035] Specifically, the sliding sleeve structure 5 includes a sliding sleeve 51, which is slidably arranged on the sliding part 2, and a plurality of guide rails 52 are provided on the inner side of the sliding sleeve 51, and a plurality of guide grooves 53 for inserting the guide rails 52 are provided on the outer wall of the sliding part 2.

[0036] More specifically, an annular connecting groove 55 for the sliding sleeve 51 to be inserted into is provided at the upper end of the pressure-resistant portion 3 , and when the sliding sleeve 51 is inserted into the annular connecting groove 55 , the flexible telescopic gripping structure 4 is circumferentially closed by the sliding sleeve 51 .

[0037] The sliding sleeve 51 is used to circumferentially seal the flexible telescopic gripping structure 4 to achieve circumferential compression protection.

[0038] In detail, the pressure-resistant portion 3 is provided with a label portion 31 at one end close to the flexible telescopic gripping structure 4 and a plurality of reinforcing ribs 32 at the other end.

[0039] Preferably, the reinforcing rib 32 is filled with rubber material. The filling rubber material is used to improve the toughness of the reinforcing rib 32 and avoid damage due to rigid collision.

[0040] To sum up, the principle of this embodiment is: by arranging reinforced ribs 32 filled with rubber material around the pressure-resistant part 3, the pressure resistance of the lower half of the bottle body 1 is improved; secondly, a flexible telescopic gripping structure 4 is arranged between the sliding part 2 and the pressure-resistant part 3, which is convenient for gripping and squeezing to drink water, and can be telescoped to change the length of the bottle body 1, thereby improving practicality; and the flexible telescopic gripping structure 4 can be protected around the circumference by lowering the sliding sleeve 51; secondly, the sliding part 2 and the pressure-resistant part 3 are arranged as a double-layer inflatable structure, and the pressure-resistant air cavity 6 is filled with gas to reduce damage to the bottle body 1 caused by external pressure.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0042] Although this document frequently uses terms such as bottle body 1, pressure-resistant bottle mouth 11, pressure-resistant bottle seat 12, bottle mouth pressure-resistant ring 13, pressure-resistant bottle cap 14, pressure-relieving cavity 141, rigid connector 142, rubber gasket 143, pressure-relieving gap 144, sliding portion 2, pressure-resistant portion 3, label portion 31, reinforcing rib 32, flexible telescopic gripping structure 4, upper telescopic portion 41, gripping portion 42, lower telescopic portion 43, recessed portion 44, elastic band 45, insertion gap 46, sliding sleeve structure 5, sliding sleeve 51, guide rail 52, guide groove 53, annular connecting groove 55, and pressure-resistant air cavity 6, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A high-pressure-resistant polyester bottle, comprising a bottle body (1), wherein the upper end of the bottle body (1) is provided with a pressure-resistant bottle mouth (11) and the lower end is provided with a pressure-resistant bottle seat (12), characterized in that: The bottle body (1) has a sliding portion (2) at its upper end and a pressure-resistant portion (3) at its lower end; a flexible telescopic gripping structure (4) is provided between the pressure-resistant portion (3) and the sliding portion (2); and the sliding portion (2) is provided with a sliding sleeve structure (5) capable of covering the flexible telescopic gripping structure (4) after sliding.

2. A high pressure-resistant polyester bottle according to claim 1, characterized in that: The lower end of the pressure-resistant bottle mouth (11) is circumferentially provided with a plurality of annularly arranged bottle mouth pressure-resistant ring bodies (13), and the upper end of the pressure-resistant bottle mouth (11) is threadedly connected with a pressure-resistant bottle cap (14).

3. A high pressure-resistant polyester bottle according to claim 2, characterized in that: A pressure-relieving cavity (141) is provided at the inner upper end of the pressure-resistant bottle cap (14), and the pressure-relieving cavity (141) is closed by a rigid connector (142). A rubber gasket (143) is filled in the pressure-relieving cavity (141), and a pressure-relieving gap (144) is provided between the bottom of the rubber gasket (143) and the rigid connector (142).

4. The high pressure-resistant polyester bottle according to claim 1, characterized in that: The sliding part (2) and the pressure-resistant part (3) have an inner layer and an outer layer, and the inner layer is a waterproof reinforcement layer, the outer layer is a wear-resistant and scratch-resistant layer, and the thickness of the inner layer is greater than that of the outer layer. A pressure-resistant air cavity (6) is formed between the inner layer and the outer layer, and the pressure-resistant air cavity (6) is filled with gas.

5. The high pressure-resistant polyester bottle according to claim 1, characterized in that: The flexible telescopic gripping structure (4) comprises an upper telescopic portion (41) connected to the bottom of the sliding portion (2); the upper telescopic portion (41) is connected to the lower telescopic portion (43) via the gripping portion (42); and the end of the lower telescopic portion (43) away from the gripping portion (42) is connected to the pressure-resistant portion (3).

6. A high pressure-resistant polyester bottle according to claim 5, characterized in that: A recessed portion (44) is provided in the middle of the gripping portion (42), and the circumferential outer walls of the upper telescopic portion (41) and the lower telescopic portion (43) are connected via a plurality of elastic bands (45). An insertion gap (46) for a finger to penetrate is formed between the elastic bands (45) and the recessed portion (44).

7. The high pressure-resistant polyester bottle according to claim 1, characterized in that: The sliding sleeve structure (5) includes a sliding sleeve (51), which is slidably arranged on the sliding part (2), and a plurality of guide rails (52) are provided on the circumferential inner side of the sliding sleeve (51), and a plurality of guide grooves (53) for the guide rails (52) to be inserted into the circumferential outer wall of the sliding part (2).

8. The high pressure-resistant polyester bottle according to claim 7, characterized in that: The upper end of the pressure-resistant portion (3) is provided with an annular connecting groove (55) for the sliding sleeve (51) to be inserted into, and when the sliding sleeve (51) is inserted into the annular connecting groove (55), the flexible telescopic gripping structure (4) is circumferentially closed by the sliding sleeve (51).

9. The high pressure-resistant polyester bottle according to claim 1, characterized in that: The anti-pressure portion (3) is provided with a label portion (31) at one end close to the flexible telescopic gripping structure (4) and a plurality of reinforcing ribs (32) at the other end.

10. The high pressure-resistant polyester bottle according to claim 9, characterized in that: The reinforcing rib (32) is filled with rubber material.

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