Plastic bottle with good sealing performance

Abstract

The utility model discloses a plastic bottle with good sealing performance, which comprises a plastic bottle main body and a bottle cap, the outer surface of the top end of the plastic bottle main body is provided with an external thread, the inner wall of the bottle cap is provided with an internal thread, the external thread is in threaded connection with the internal thread, the inner top wall of the bottle cap is fixedly provided with a sealing plug, and the sealing plug is in threaded connection with the bottle cap. The bottom end of the sealing plug extends into the plastic bottle body, and the outer surface of the sealing plug makes contact with the inner wall of the plastic bottle body. According to the device, the sealing plug is installed on the inner top wall of the bottle cap, so that after the bottle cap is connected with the top end of the plastic bottle body, the bottom end of the sealing plug can extend into the plastic bottle body, and the inner top wall of the bottle cap and the top end of the plastic bottle body jointly extrude the top end of the sealing plug, so that primary sealing is formed; when the bottle cap drives the sealing ring block to descend, the inner wall of the sealing ring block and the upper surface of the annular check block jointly extrude the annular sealing gasket, and therefore secondary sealing can be formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic bottle technical field especially a plastic bottle with good sealing performance. BACKGROUND

[0002] The plastic bottle is mainly made of polyethylene or polypropylene and added with various organic solvents, and the plastic bottle uses polyester, polyethylene and polypropylene as raw materials, and is added with corresponding organic solvents and heated at high temperature, and is formed into a plastic container through plastic mould blowing, extrusion blowing or injection moulding, and is mainly used for beverage, food, pickles, honey, dried fruit, edible oil, agricultural and veterinary drug liquid or solid disposable plastic packaging containers, and the plastic bottle has the characteristics of not easy to break, low cost, high transparency and food-grade raw materials.

[0003] However, the sealing effect of most of the currently used plastic bottles is not ideal during normal use, and water leakage may occur due to the bottle opening not being tightened, and therefore, the plastic bottle with good sealing performance is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a plastic bottle with good sealing performance to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] A plastic bottle with good sealing performance, comprising a plastic bottle body and a bottle cap, an outer thread is formed on the outer surface of the top end of the plastic bottle body, an inner thread is formed on the inner wall of the bottle cap, the outer thread is threadedly connected with the inner thread, a sealing plug is fixedly installed on the inner top wall of the bottle cap, the bottom end of the sealing plug extends into the interior of the plastic bottle body, the outer surface of the sealing plug is in contact with the inner wall of the plastic bottle body, a sealing ring block is fixedly installed on the outer surface of the bottom end of the bottle cap, an annular stop block is fixedly installed on the outer surface of the plastic bottle body, an annular sealing gasket is sleeved on the outer surface of the top end of the plastic bottle body, the bottom surface of the annular sealing gasket is in contact with the upper surface of the annular stop block, and the upper surface of the annular sealing gasket is in contact with the inner wall of the sealing ring block.

[0007] In a further embodiment, a plurality of annularly arranged friction strips are fixedly installed on the outer surface of the bottle cap, and each friction strip is arc-shaped.

[0008] In a further embodiment, an annular ring is sleeved on the outer surface of the plastic bottle body, and two symmetrical arc-shaped blocks are fixedly installed on the outer surface of the annular ring.

[0009] In further embodiments, the upper surface of each of the arc-shaped blocks is provided with a rope passing opening, and the annular ring and the two arc-shaped blocks are made of plastic.

[0010] In further embodiments, the outer surface of the plastic bottle body is provided with a limiting holding groove, and the outer surface of the limiting holding groove is sleeved with a heat insulation sleeve.

[0011] In further embodiments, the outer surface of the plastic bottle body is fixedly provided with a handle, and the outer surface of the heat insulation sleeve and the outer surface of the handle are both provided with anti-skid lines.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The device can avoid the phenomenon of water leakage of the plastic bottle body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective structural schematic view of a front view of the plastic bottle with good sealing performance.

[0015] Figure 2 It is a perspective structural schematic view of a top view of the plastic bottle with good sealing performance.

[0016] Figure 3 It is a perspective structural schematic view of a front view of the bottle cap in the plastic bottle with good sealing performance.

[0017] Figure 4 It is a perspective structural schematic view of a side view of the heat insulation sleeve in the plastic bottle with good sealing performance.

[0018] In the figure: 1, heat insulation sleeve; 2, handle; 3, annular ring; 4, sealing ring block; 5, bottle cap; 6, friction strip-shaped block; 7, annular block; 8, arc-shaped block; 9, plastic bottle body; 10, rope passing opening; 11, external thread; 12, sealing plug; 13, internal thread; 14, annular sealing pad; 15, limiting holding groove. DETAILED DESCRIPTION

[0019] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation based on the orientation or positional relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0020] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-4The utility model discloses a plastic bottle that good sealing performance, including plastic bottle main part 9 and bottle lid 5, the outer surface of plastic bottle main part 9 top end is seted up with outer thread 11, the inner wall of bottle lid 5 is seted up with inner thread 13, and outer thread 11 is connected with inner thread 13 threadedly, and the inner top wall of bottle lid 5 is fixedly installed with sealing plug 12, and the bottom end of sealing plug 12 extends to the inside of plastic bottle main part 9, and the outer surface of sealing plug 12 is in contact with the inner wall of plastic bottle main part 9, and the outer surface of bottle lid 5 bottom end is fixedly installed with sealing ring block 4, and the outer surface of plastic bottle main part 9 is fixedly installed with annular fender 7, and the outer surface of plastic bottle main part 9 top end is seted up with annular sealing washer 14, and the bottom of annular sealing washer 14 is in contact with the upper surface of annular fender 7, and the upper surface of annular sealing washer 14 is in contact with the inner wall of sealing ring block 4, after outer thread 11 is connected with inner thread 13 threadedly, the inner top wall of bottle lid 5 and the top end of plastic bottle main part 9 will extrude the top end of sealing plug 12 together, thereby play the sealing effect, and the bottom end of sealing plug 12 inserted into the inside of plastic bottle main part 9 also plays the blocking effect to the liquid in the inside of plastic bottle main part 9, when bottle lid 5 and plastic bottle main part 9 are firmly assembled together, sealing ring block 4 and annular fender 7 also will extrude annular sealing washer 14 together, thereby play the secondary sealing effect.

[0023] The outer surface of bottle lid 5 is fixedly installed with a plurality of annular arrangement's friction strip block 6, and each friction strip block 6 is arc-shaped, by installing a plurality of annular arrangement's friction strip block 6 on the outer surface of bottle lid 5, so that the user can conveniently rotate bottle lid 5, the outer surface of plastic bottle main part 9 is seted up with annular ring 3, the outer surface of annular ring 3 is fixedly installed with two symmetrical arc blocks 8, the upper surface of each arc block 8 is seted up with rope passing port 10, and annular ring 3 and two arc blocks 8 are plastic materials, the user can connect the two ends of the shoulder strap with two rope passing ports 10 respectively, and then the user can carry the product by the way of back sling.

[0024] The outside of plastic bottle main part 9 is seted up with limiting holding groove 15, the outer surface of limiting holding groove 15 is seted up with heat insulation sleeve 1, limiting holding groove 15 can play a certain limiting effect to heat insulation sleeve 1, the user can firmly hold plastic bottle main part 9 by holding heat insulation sleeve 1, and heat insulation sleeve 1 can insulate a part of heat transfer, thereby can avoid the user being scalded by the high-temperature liquid in the inside of plastic bottle main part 9, the outer surface of plastic bottle main part 9 is fixedly installed with handle 2, and the outer surface of heat insulation sleeve 1 and the outer surface of handle 2 are all seted up with antiskid lines, by setting antiskid lines on the outer surface of heat insulation sleeve 1, so that the user can stably hold heat insulation sleeve 1, and the user can conveniently carry the product by holding handle 2.

[0025] The working principle of the utility model is:

[0026] Firstly, the user aligns the inner ring of the bottle cap 5 with the outer ring at the top end of the plastic bottle body 9, and then rotates the bottle cap 5, so that the inner thread 13 in the inner ring of the bottle cap 5 is screwed with the outer thread 11 on the outer surface of the plastic bottle body 9, and after the bottle cap 5 is firmly connected with the top end of the plastic bottle body 9, the bottle cap 5 will press the bottom end of the sealing plug 12 into the inside of the plastic bottle body 9, and the inner top wall of the bottle cap 5 and the top end of the plastic bottle body 9 will jointly extrude the top end of the sealing plug 12, forming a primary seal, and after the bottle cap 5 drives the sealing ring block 4 to descend, the sealing ring block 4 and the annular stop block 7 will jointly extrude the annular sealing gasket 14, forming a secondary seal.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A plastic bottle having good sealing performance, characterized by: The utility model relates to a plastic bottle, including plastic bottle body (9) and bottle cap (5), the outer surface of plastic bottle body (9) top end is equipped with outer thread (11), the inner wall of bottle cap (5) is equipped with inner thread (13), outer thread (11) is connected with inner thread (13), the inner top wall of bottle cap (5) is fixedly installed with sealing plug (12), the bottom of sealing plug (12) extends to the inside of plastic bottle body (9), the outer surface of sealing plug (12) is in contact with the inner wall of plastic bottle body (9), the outer surface of bottle cap (5) bottom is fixedly installed with sealing ring block (4), the outer surface of plastic bottle body (9) is fixedly installed with annular baffle (7), the outer surface of plastic bottle body (9) top end is equipped with annular sealing pad (14), the bottom surface of annular sealing pad (14) is in contact with the upper surface of annular baffle (7), the upper surface of annular sealing pad (14) is in contact with the inner wall of sealing ring block (4).

2. The plastic bottle with good sealing performance according to claim 1, characterized in that: The outer surface of bottle cap (5) is fixedly installed with a plurality of annularly arranged friction strip blocks (6), each friction strip block (6) is arc-shaped.

3. The plastic bottle with good sealing performance according to claim 1, characterized in that: The outer surface of plastic bottle body (9) is sleeved with annular ring (3), and the outer surface of annular ring (3) is fixedly installed with two symmetrical arc-shaped blocks (8).

4. The plastic bottle with good sealing performance according to claim 3, characterized in that: The upper surface of each arc-shaped block (8) is provided with a rope passing opening (10), and the annular ring (3) and the two arc-shaped blocks (8) are made of plastic.

5. The plastic bottle with good sealing performance according to claim 1, characterized in that: The outer surface of plastic bottle body (9) is provided with a limiting holding groove (15), and the outer surface of limiting holding groove (15) is sleeved with a heat insulation sleeve (1).

6. A plastic bottle with good sealing performance according to claim 5, characterized in that: The outer surface of plastic bottle body (9) is fixedly installed with a handle (2), and the outer surface of heat insulation sleeve (1) and the outer surface of handle (2) are provided with anti-skid lines.

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