Anti-cracking plastic bottle

Abstract

The utility model discloses an anti-cracking plastic bottle which comprises a plastic bottle body and a threaded bottle opening arranged at the top end of the plastic bottle body, a sealing check ring is arranged outside the bottom end of the threaded bottle opening, and the plastic bottle body, the sealing check ring and the threaded bottle opening are integrally formed in an injection molding mode after plastic master batches are heated. The novel air bag type anti-cracking device is additionally arranged outside the bottle body of the plastic bottle, the air bag type anti-cracking device can play a role in protecting the outside of the bottle body, when the plastic bottle falls onto the ground, the device can replace the plastic bottle to make contact with the ground, and when the plastic bottle falls onto the ground, the plastic bottle is prevented from falling off. According to the air bag type anti-cracking device, the space between the outer plastic protection barrel and the inner plastic protection barrel is filled with air to buffer the impact force generated during falling, so that the impact force finally transmitted to a plastic bottle is greatly weakened; in this way, the situation that the plastic bottle is prone to deformation or cracks or is directly broken after falling onto the ground can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to plastic bottles, and in particular relates to a fall-resistant and crack-resistant plastic bottle. Background Art

[0002] Plastic bottles are a common hollow container, usually used to package liquids, powders or granular items. Made of plastic materials, they are lightweight, durable, leakproof, easy to process and low-cost. Plastic bottles can be designed into different shapes, capacities and colors according to different needs, and are widely used in food, beverages, cosmetics, pharmaceuticals and other industries. Common types of plastic bottles include PET bottles, PE bottles, PP bottles, etc. They can adapt to different needs and environments, such as high temperature resistance, acid and alkali resistance and other characteristics. The production of plastic bottles is usually carried out by hollow container blow molding devices, which are heated, extruded and blow molded to produce plastic bottles of various shapes.

[0003] However, plastic bottles are mainly used to store liquids. When the plastic bottle is filled with liquid, when the plastic bottle falls from the hand or a high place, the plastic bottle will directly hit the ground. The impact force generated by the collision will directly act on the plastic bottle. Because the plastic bottle is filled with water and is in a sealed state, the impact force when it falls and hits the ground will cause the internal pressure of the plastic bottle to be too high, which will easily cause the plastic bottle to break directly, making the plastic bottle damaged and unable to be used normally. Utility Model Content

[0004] The utility model aims to provide a plastic bottle that is resistant to breaking, so as to solve the problem proposed in the above-mentioned background technology that when a plastic bottle falls from a hand or a height, the plastic bottle will directly hit the ground, and the impact force generated during the collision will directly act on the plastic bottle. In addition, the impact force when it falls and hits the ground will cause the internal pressure of the plastic bottle to be too large, which will easily cause the plastic bottle to break directly.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-crack plastic bottle, comprising a plastic bottle body and a threaded bottle mouth arranged at the top of the plastic bottle body, a sealing retainer ring is arranged outside the bottom end of the threaded bottle mouth, the plastic bottle body, the sealing retainer ring and the threaded bottle mouth are integrally made by heating plastic masterbatch through injection molding, and an airbag anti-crack device is arranged outside the plastic bottle body;

[0006] The airbag-type anti-fall and crack device includes an outer plastic protective tube and an inner plastic protective tube, the opening directions of the outer plastic protective tube and the inner plastic protective tube are both upward, the outer plastic protective tube is sleeved on the outside of the inner plastic protective tube, the top ends of the outer plastic protective tube and the inner plastic protective tube are fixedly connected by hot-melt sealing, there is a gap between the outer plastic protective tube and the inner plastic protective tube, and air is injected into the gap space.

[0007] Preferably, the airbag anti-fall and crack device also includes anti-slip particles and an elastic rubber ring. The circular inner wall of the inner plastic protective tube is densely covered with anti-slip particles. An elastic rubber ring is provided at the top of the inner plastic protective tube. When the elastic rubber ring is not in use, the inner diameter of the elastic rubber ring is smaller than the outer diameter of the plastic bottle body.

[0008] Preferably, the thickness of the outer plastic protective tube and the inner plastic protective tube are both smaller than the thickness of the plastic bottle body, the thickness of the outer plastic protective tube is greater than the thickness of the inner plastic protective tube, and the anti-slip particles are made of soft rubber.

[0009] Preferably, the outer thread of the threaded bottle mouth is sleeved with a bottle mouth sealing cover, and after the bottle mouth sealing cover is completely tightened onto the outside of the threaded bottle mouth, the bottom end of the bottle mouth sealing cover is tightly against the top end of the sealing retaining ring.

[0010] Preferably, the circular outer wall of the bottle mouth sealing cover is densely covered with anti-skid patterns to increase the friction between the finger skin, and a sealing gasket is also provided on the inner wall of the top end of the bottle mouth sealing cover, and the sealing gasket can be completely tightly attached to the top outer wall of the threaded bottle mouth.

[0011] Preferably, a plurality of reinforcement rings are equidistantly arranged on the inner wall of the plastic bottle body, and the thickness of the reinforcement rings is smaller than the thickness of the plastic bottle body.

[0012] Compared with the prior art, the utility model provides a plastic bottle that is resistant to falling and cracking, and has the following beneficial effects:

[0013] The utility model adds a novel airbag-type anti-cracking device to the outside of the bottle body of the plastic bottle. The airbag-type anti-cracking device can produce a protective effect on the outside of the bottle body. When the plastic bottle falls to the ground, the airbag-type anti-cracking device can contact the ground instead of the plastic bottle. When falling to the ground, the airbag-type anti-cracking device cushions the impact force generated by the fall through the air filled in the space between the outer plastic protective tube and the inner plastic protective tube, so that the impact force finally transmitted to the plastic bottle is greatly weakened. In this way, the plastic bottle can be prevented from being easily deformed, cracked or directly broken after falling to the ground. In addition, the airbag-type anti-cracking device can be directly removed from the plastic bottle and reinstalled on a new plastic bottle without any waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of a shatter-resistant plastic bottle.

[0015] Figure 2 It is a schematic diagram of the front cross-sectional structure of the airbag type anti-fall and crack device of the utility model.

[0016] Figure 3 It is a schematic diagram of the front view of the three-dimensional structure of the airbag type anti-fall and crack device of the utility model.

[0017] In the figure: 1. airbag type anti-fall and crack device; 2. plastic bottle body; 3. sealing retaining ring; 4. threaded bottle mouth; 5. bottle mouth sealing cover; 6. outer plastic protective tube; 7. inner plastic protective tube; 8. anti-slip particles; 9. elastic rubber ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 The anti-cracking plastic bottle shown in the figure comprises a plastic bottle body 2 and a threaded bottle mouth 4 arranged at the top of the plastic bottle body 2, a sealing retainer ring 3 is arranged on the outside of the bottom end of the threaded bottle mouth 4, the plastic bottle body 2, the sealing retainer ring 3 and the threaded bottle mouth 4 are integrally made by heating plastic masterbatch through injection molding, the outer thread of the threaded bottle mouth 4 is sleeved with a bottle mouth sealing cover 5, after the bottle mouth sealing cover 5 is completely tightened to the outside of the threaded bottle mouth 4, the bottom end of the bottle mouth sealing cover 5 is tightly against the top end of the sealing retainer ring 3, the circular outer wall of the bottle mouth sealing cover 5 is densely covered with anti-slip grooves for increasing the friction between the finger skin, and a sealing gasket is also arranged on the inner wall of the top end of the bottle mouth sealing cover 5, and the sealing gasket can be completely tightly against the outer wall of the top end of the threaded bottle mouth 4. A plurality of reinforcement rings are also equidistantly arranged on the inner wall of the plastic bottle body 2, and the thickness of the reinforcement rings is less than that of the plastic bottle body 2. When using the plastic bottle to fill water, it is first necessary to rotate the bottle mouth sealing cover 5 counterclockwise to disengage the bottle mouth sealing cover 5 from the outside of the threaded bottle mouth 4. At this time, the threaded bottle mouth 4 will be completely exposed, and then water is directly injected into the plastic bottle body 2 through the threaded bottle mouth 4. When the plastic bottle body 2 is filled with water, it is necessary to re-sleeve the bottle mouth sealing cover 5 onto the outside of the top of the threaded bottle mouth 4, and then tighten the bottle mouth sealing cover 5 clockwise, so that the threaded bottle mouth 4 will be completely sealed through the bottle mouth sealing cover 5 to prevent the water in the plastic bottle body 2 from leaking out, and finally the plastic bottle can be directly placed on the table.

[0020] like Figure 1 , Figure 2 and Figure 3As shown, an airbag-type anti-fall and cracking device 1 is provided on the outside of the plastic bottle body 2, and the airbag-type anti-fall and cracking device 1 includes an outer plastic protective tube 6 and an inner plastic protective tube 7. The opening directions of the outer plastic protective tube 6 and the inner plastic protective tube 7 are both upward, and the outer plastic protective tube 6 is sleeved on the outside of the inner plastic protective tube 7. The top ends of the outer plastic protective tube 6 and the inner plastic protective tube 7 are fixedly connected by hot-melt sealing. There is a gap between the outer plastic protective tube 6 and the inner plastic protective tube 7, and air is injected into the gap space. The airbag-type anti-fall and cracking device 1 also includes anti-skid particles 8 and an elastic rubber ring 9. The circular inner wall of the inner plastic protective tube 7 is densely covered with anti-skid particles 8, and the top end of the inner plastic protective tube 7 is provided with an elastic rubber ring 9. When the elastic rubber ring 9 is not in use, the inner diameter is smaller than the outer diameter of the plastic bottle body 2. The thicknesses of the outer plastic protective tube 6 and the inner plastic protective tube 7 are both smaller than the thickness of the plastic bottle body 2, and the thickness of the outer plastic protective tube 6 is greater than the thickness of the inner plastic protective tube 7. The anti-skid particles 8 are made of soft rubber.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, when using a plastic bottle, in order to increase the anti-fall and cracking ability of the plastic bottle, it is necessary to install the airbag anti-fall and cracking device 1 to the outside of the plastic bottle body 2 to protect the plastic bottle. Specifically, it is necessary to first expand the elastic rubber ring 9 outward, and then maintain the elastic rubber ring 9 in the expanded state and sleeve it from bottom to top on the outside of the bottom end of the plastic bottle body 2, and then push it upward until the inner plastic protective tube 7 is completely sleeved on the outside of the plastic bottle body 2, and then loosen the elastic rubber ring 9. The elastic rubber ring 9 will shrink quickly due to its own rubber material characteristics, so that the elastic rubber ring 9 is firmly bound to the outer wall of the plastic bottle body 2, so that the entire airbag anti-fall and cracking device 1 will be fixed to the outside of the plastic bottle body 2, and at this time, the inner wall of the inner plastic protective tube 7 The anti-slip particles 8 are tightly attached to the outer wall of the plastic bottle body 2, which will make the airbag anti-fall and crack device 1 more firmly protect the outside of the plastic bottle. When the plastic bottle filled with water falls to the ground, the outer plastic protective tube 6 will hit the ground instead of the plastic bottle body 2. Because there is a gap between the outer plastic protective tube 6 and the inner plastic protective tube 7, and the gap space is filled with gas, the impact force generated when falling will cause the outer plastic protective tube 6 to be compressed toward the inner plastic protective tube 7, and the air filled between the outer plastic protective tube 6 and the inner plastic protective tube 7 will buffer and weaken the impact force generated when falling, so that the impact force finally transmitted to the plastic bottle is greatly weakened, which will protect the plastic bottle and prevent the plastic bottle from falling directly to the ground and breaking.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic bottle that is resistant to falling and cracking, comprising a plastic bottle body (2) and a threaded bottle mouth (4) arranged at the top of the plastic bottle body (2), a sealing retaining ring (3) being arranged outside the bottom end of the threaded bottle mouth (4), and the plastic bottle body (2), the sealing retaining ring (3) and the threaded bottle mouth (4) are integrally made by heating plastic masterbatch and then injection molding, and the characteristics are: An airbag-type anti-fall and crack device (1) is arranged outside the plastic bottle body (2); The airbag type anti-fall and crack device (1) comprises an outer plastic protective tube (6) and an inner plastic protective tube (7), the opening directions of the outer plastic protective tube (6) and the inner plastic protective tube (7) are both upward, the outer plastic protective tube (6) is sleeved on the outside of the inner plastic protective tube (7), the top ends of the outer plastic protective tube (6) and the inner plastic protective tube (7) are fixedly connected by hot-melt sealing, there is a gap between the outer plastic protective tube (6) and the inner plastic protective tube (7), and air is injected into the gap space.

2. The anti-cracking plastic bottle according to claim 1, characterized in that: The airbag anti-fall and crack device (1) further comprises anti-skid particles (8) and an elastic rubber ring (9); the circular inner wall of the inner plastic protective tube (7) is densely covered with anti-skid particles (8); the top of the inner plastic protective tube (7) is provided with an elastic rubber ring (9); when not in use, the inner diameter of the elastic rubber ring (9) is smaller than the outer diameter of the plastic bottle body (2).

3. The anti-cracking plastic bottle according to claim 2, characterized in that: The thickness of the outer plastic protective tube (6) and the inner plastic protective tube (7) are both smaller than the thickness of the plastic bottle body (2), the thickness of the outer plastic protective tube (6) is larger than the thickness of the inner plastic protective tube (7), and the anti-slip particles (8) are made of soft rubber.

4. The anti-cracking plastic bottle according to claim 1, characterized in that: The outer thread of the threaded bottle mouth (4) is sleeved with a bottle mouth sealing cover (5). After the bottle mouth sealing cover (5) is completely tightened onto the outside of the threaded bottle mouth (4), the bottom end of the bottle mouth sealing cover (5) is tightly attached to the top end of the sealing retaining ring (3).

5. The anti-cracking plastic bottle according to claim 4, characterized in that: The circular outer wall of the bottle mouth sealing cover (5) is densely covered with anti-skid patterns to increase the friction between the bottle mouth sealing cover (5) and the top inner wall of the bottle mouth sealing cover (5) is also provided with a sealing gasket, which can be completely tightly attached to the top outer wall of the threaded bottle mouth (4).

6. The anti-cracking plastic bottle according to claim 1, characterized in that: A plurality of reinforcement rings are also arranged at equal intervals on the inner wall of the plastic bottle body (2), and the thickness of the reinforcement rings is smaller than the thickness of the plastic bottle body (2).

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