Low-yellowing water bottle made of polyester material

Abstract

The utility model provides a low-yellowing water bottle made of polyester materials, which solves the problems that the water bottle is single in shape, lacks a filtering structure and the like, and comprises a gourd-shaped main bottle body, a bottle opening at the top of the main bottle body is sealed by a bottle cap, and the main bottle body comprises an upper bottle body and a lower bottle body which can be connected and separated. The upper bottle body and the lower bottle body are internally provided with containing cavities which can be communicated with each other respectively, and a filtering assembly is arranged between every two adjacent communicated containing cavities. The filter has the advantages of unique shape, convenience in filtration and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of water bottles, and particularly relates to a low-yellowing water bottle made of polyester. Background Art

[0002] Polyethylene terephthalate, abbreviated as PET, is also known as polyester in Chinese. PET's molecular structure is highly symmetrical and possesses a certain degree of crystal orientation, resulting in high film-forming and fiber-forming properties, excellent optical properties, and PET bottle flakes, a type of polyester, are primarily used in food and beverage packaging, hence the name bottle-grade PET. However, existing PET bottles are susceptible to yellowing due to environmental influences, affecting their appearance. Furthermore, existing PET water bottles have a relatively simple design, failing to fully utilize the plasticity of the polyester material, and lack effective internal filtration.

[0003] To address the shortcomings of existing technologies, researchers have conducted extensive research and proposed a variety of solutions. For example, a Chinese patent document discloses a method for preparing a non-discoloring plastic bottle [201711210113.4]. The method comprises the following steps: uniformly mixing titanium dioxide with tetrabutylammonium fluoride and polyethyleneimine, heating until the tetrabutylammonium fluoride is completely melted, and stirring to obtain a modified titanium dioxide; adding polyoxyethylene stearate and polycaprolactam powder to a ball mill and milling to obtain an anti-discoloration agent; adding polyethylene resin powder, modified titanium dioxide, and the anti-discoloration agent to an extruder, melt-extruding, and granulating to obtain a functional masterbatch. The masterbatch is then extruded, injection molded, stretched, and blow-molded to obtain a non-discoloring plastic bottle.

[0004] The above solution solves the yellowing problem of polyester bottles to a certain extent, but the solution still has many shortcomings, such as a relatively simple shape and a lack of filtering structure. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a low-yellowing water bottle made of polyester material with unique shape and capable of internal filtration.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a low-yellowing water bottle made of polyester material, comprising a gourd-shaped main bottle body, the top bottle mouth of the main bottle body is closed by a bottle cap, the main bottle body comprises a connectable and detachable upper bottle body and a lower bottle body, the upper bottle body and the lower bottle body are respectively provided with mutually communicated accommodating cavities, and a filter assembly is provided between adjacent connected accommodating cavities.

[0007] In the above-mentioned polyester low-yellowing water bottle, the main bottle body is made of polyester, the outer side of the main bottle body is covered with a reflective layer, and a transparent or translucent observation window is provided on the main bottle body.

[0008] In the above-mentioned low-yellowing water bottle made of polyester, the upper bottle body and the lower bottle body are fixedly connected by threads.

[0009] In the above-mentioned low-yellowing water bottle made of polyester, a slidably pluggable connecting tube is provided between the upper bottle body and the lower bottle body, a circumferentially surrounding sealing strip is provided between the connecting tubes, and a locking assembly is provided between the connecting tubes.

[0010] In the above-mentioned low-yellowing water bottle made of polyester, the locking assembly includes a locking hoop arranged around the outside of the junction of the upper bottle body and the lower bottle body, the connecting tube has a locking groove along the circumference, and the locking hoop has a locking block inserted in the locking groove.

[0011] In the above-mentioned low-yellowing water bottle made of polyester, the bottle cap and the main bottle body are sealed and fixed by means of threaded connection or sliding plug-in.

[0012] In the above-mentioned low-yellowing water bottle made of polyester, the filter assembly includes a filter screen that separates the accommodating cavities of the upper bottle body and the lower bottle body.

[0013] In the above-mentioned low-yellowing water bottle made of polyester, the edge of the filter screen is pressed and fixed between the upper bottle body and the lower bottle body.

[0014] In the above-mentioned low-yellowing water bottle made of polyester, the filter screen includes a lower cylinder and an upper cover that can be pressed together and closed. The lower cylinder and the upper cover are respectively provided with a filter screen structure, and the lower cylinder extends to the bottom of the lower bottle body.

[0015] In the above-mentioned low-yellowing water bottle made of polyester, the bottom of the main bottle body is spherical and is provided with a counterweight balance block.

[0016] Compared with the existing technology, the advantages of the present invention are: the gourd-shaped main bottle body can be separated up and down, and a filter assembly is arranged between them to filter the internal water, ensuring smooth flow of water at the bottle mouth; the upper bottle body and the lower bottle body can be detached and separated, so that the accommodating cavity therein has a larger passage opening with the outside world, which is convenient for cleaning the interior; the bottom of the main bottle body is spherical and is equipped with a counterweight matching block to ensure that the center of gravity is located at the bottom of the main bottle body, ensuring that the central axis of the main bottle body is vertically stable relative to the horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0019] Figure 3 This is another schematic cross-sectional view of the structure of the present invention;

[0020] In the figure, the main bottle body 1, the bottle cap 11, the counterweight balancing block 12, the upper bottle body 2, the lower bottle body 3, the accommodating chamber 4, the filter assembly 5, the filter screen 51, the lower cylinder 52, the upper cover 53, the connecting cylinder 6, the sealing strip 61, the locking hoop 62, the locking groove 63, and the locking block 64. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Example 1

[0023] like Figure 1-3 As shown, a low-yellowing water bottle made of polyester material includes a gourd-shaped main bottle body 1, the top of the main bottle body 1 is closed by a bottle cap 11, the main bottle body 1 includes a connectable upper bottle body 2 and a lower bottle body 3, and the upper bottle body 2 and the lower bottle body 3 are respectively provided with mutually communicating accommodating cavities 4, and a filter assembly 5 is provided between adjacent connected accommodating cavities 4.

[0024] Specifically, the main bottle body 1 is made of polyester, and the outer side of the main bottle body 1 is covered with a reflective layer to effectively delay the yellowing of the main bottle body 1. A transparent or translucent observation window is provided on the main bottle body 1. The internal liquid content can be judged more intuitively through the observation window and the indicator scale.

[0025] In addition, the bottle cap 11 and the main bottle body 1 are sealed and fixed by threaded connection or sliding plug-in connection. The appropriate connection method can be selected according to actual needs.

[0026] Example 3

[0027] The structure, principle and specific implementation steps of this embodiment are similar to those of the first embodiment, except that the upper bottle body 2 and the lower bottle body 3 are fixedly connected by threads, and the connection method has a high sealing effect and is convenient for assembly and disassembly.

[0028] Example 4

[0029] The structure, principle, and specific implementation steps of this embodiment are similar to those of the first embodiment, with the difference being that this embodiment uses a plug-in connection instead of a threaded connection. A slidably pluggable connecting tube 6 is provided between the upper bottle body 2 and the lower bottle body 3. A circumferentially encircling sealing strip 61 is provided between the connecting tubes 6, and a locking assembly is provided between the connecting tubes 6. When the upper bottle body 2 and the lower bottle body 3 are plugged and sealed, the locking assembly performs circumferential and axial locking.

[0030] Furthermore, the locking assembly includes a locking hoop 62 positioned around the outside of the junction of the upper and lower bottle bodies 2 and 3. The connecting tube 6 is circumferentially defined with a locking groove 63. The locking hoop 62 includes a locking block 64 that plugs into the locking groove 63. The locking block 64 corresponds one-to-one with the locking groove 63, achieving multi-point positioning. The locking hoop 62 can optionally be equipped with a ring or a strap to enhance the convenience of the main bottle body 1.

[0031] Example 5

[0032] The structure, principle and specific implementation steps of this embodiment are similar to those of Example 1, with the difference being that the filter assembly 5 in this embodiment adopts a conventional single-layer or multi-layer stacked filter screen structure, which includes a filter screen 51 that separates the accommodating cavity 4 of the upper bottle body 2 and the lower bottle body 3. The filter screen 51 can be disassembled and assembled as the upper bottle body 2 and the lower bottle body 3 are separated, and can also be fixed to the upper bottle body 2 by a connection method such as a snap, and disassembled together with the upper bottle body 2 and separated from the lower bottle body 3.

[0033] As can be seen, the edge of the filter 51 is pressed and fixed between the upper bottle body 2 and the lower bottle body 3. When tea leaves or other brewing materials need to be added, the filter 51 is separated and placed into the receiving cavity 4 of the lower bottle body 3. After that, the upper and lower bottle bodies 2 and 3 are connected and the filter 51 is pressed and fixed. When drinking, the internal filter 51 prevents tea leaves from clogging the bottle mouth, ensuring smooth drinking.

[0034] Example 6

[0035] The structure, principle, and specific implementation steps of this embodiment are similar to those of the first embodiment, with the difference being that, to further reduce the adhesion of tea leaves and other brewing materials to the main bottle body 1, they can be independently encapsulated in a filter 51. The filter 51 in this embodiment includes a lower cylinder 52 and an upper cover 53 that can be pressed together and sealed. The lower cylinder 52 and the upper cover 53 are each provided with a filter structure, allowing tea leaves to be filled into the cavity between the lower cylinder 52 and the upper cover 53. When the tea leaves need to be replaced, the filter 51 can be removed and replaced as a whole. The lower cylinder 52 extends to the bottom of the lower bottle body 3, ensuring that the water in the internal accommodating chamber 4 of the lower bottle body 3 can completely soak the tea leaves. If there is too much tea, the excess water can be poured out from the bottle mouth.

[0036] Example 7

[0037] The structure, principle, and specific implementation steps of this embodiment are similar to those of the first embodiment. The difference is that the bottom of the main bottle body 1 in the first embodiment is a flat structure, while in this application, to ensure the overall aesthetics of the gourd shape of the main bottle body 1, the bottom is a rounded spherical surface. When the main bottle body 1 is placed on a horizontal surface, to ensure that the central axis is perpendicular to the horizontal plane, a counterweight 12 is provided on the bottom or the bottom is thickened to ensure that its center of gravity is downward.

[0038] 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.

[0039] Although this document frequently uses terms such as main body 1, bottle cap 11, counterweight 12, upper bottle body 2, lower bottle body 3, accommodating chamber 4, filter assembly 5, filter screen 51, lower cylinder 52, upper cover 53, connecting cylinder 6, sealing strip 61, locking hoop 62, locking groove 63, and locking block 64, 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 low-yellowing water bottle made of polyester, comprising a gourd-shaped main bottle body (1), the top of the main bottle body (1) being closed by a bottle cap (11), characterized in that: The main bottle body (1) comprises an upper bottle body (2) and a lower bottle body (3) that can be connected and separated. The upper bottle body (2) and the lower bottle body (3) are respectively provided with mutually communicated accommodating cavities (4), and a filter assembly (5) is provided between adjacent communicated accommodating cavities (4).

2. A low-yellowing water bottle made of polyester according to claim 1, characterized in that: The main bottle body (1) is made of polyester, the outer side of the main bottle body (1) is covered with a reflective layer, and a transparent or translucent observation window is provided on the main bottle body (1).

3. The low-yellowing water bottle made of polyester according to claim 1, characterized in that: The upper bottle body (2) and the lower bottle body (3) are fixedly connected by threads.

4. The low-yellowing water bottle made of polyester according to claim 1, characterized in that: A slidably pluggable connecting tube (6) is provided between the upper bottle body (2) and the lower bottle body (3), a circumferentially surrounding sealing strip (61) is provided between the connecting tubes (6), and a locking assembly is provided between the connecting tubes (6).

5. The low-yellowing water bottle made of polyester according to claim 4, characterized in that: The locking assembly comprises a locking hoop (62) arranged around the outside of the junction of the upper bottle body (2) and the lower bottle body (3); the connecting tube (6) is provided with a locking groove (63) along the circumferential direction; and the locking hoop (62) has a locking block (64) inserted into the locking groove (63).

6. The low-yellowing water bottle made of polyester according to claim 1, characterized in that: The bottle cap (11) and the main bottle body (1) are sealed and fixed by adopting a threaded connection or a sliding plug-in manner.

7. The low-yellowing polyester water bottle according to claim 1, characterized in that: The filter assembly (5) comprises a filter screen (51) which separates the accommodating cavity (4) of the upper bottle body (2) and the lower bottle body (3).

8. The low-yellowing polyester water bottle according to claim 7, characterized in that: The edge of the filter screen (51) is pressed and fixed between the upper bottle body (2) and the lower bottle body (3).

9. The low-yellowing polyester water bottle according to claim 7, characterized in that: The filter screen (51) comprises a lower cylinder (52) and an upper cover (53) that can be pressed together and sealed. The lower cylinder (52) and the upper cover (53) are respectively provided with a filter screen structure. The lower cylinder (52) extends to the bottom of the lower bottle (3).

10. The low-yellowing polyester water bottle according to claim 1, characterized in that: The bottom of the main bottle body (1) is spherical and is provided with a counterweight (12).

Images