Anti-expansion plastic container

By designing air pipes and support structures within plastic containers to monitor air pressure changes, the problem of plastic containers expanding, deforming, or bursting due to increased air pressure is solved, improving stability and safety during transportation.

CN224104620UActive Publication Date: 2026-04-10CHANGZHOU HUAPU PLASTICS CONTAINER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Plastic containers are prone to expansion, deformation, or bursting due to increased internal air pressure caused by violent shaking or external impact during transportation.

Method used

An anti-expansion plastic container was designed, equipped with an air outlet pipe, a sliding column, a sealing piston, a support plate, and a spring structure. The internal air pressure is released through the air outlet, and a pointer and scale groove are provided to monitor air pressure changes. Support legs are added to improve stability.

Benefits of technology

It effectively prevents plastic containers from expanding, deforming, or bursting due to increased air pressure, and enhances their resistance to tipping and impact during transportation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224104620U_ABST
Patent Text Reader

Abstract

The utility model provides an anti-expansion plastic container which comprises a barrel body, the top of a sealing cover is communicated with an air outlet pipe, a sliding column is arranged in the air outlet pipe in a sliding mode, a sealing piston is fixed to the bottom of the sliding column, a supporting plate is fixed to the top of the sliding column, a spring is arranged on the sliding column in a sleeved mode, and an air outlet hole is formed in one side of the air outlet pipe. One end of the spring is fixed to the air outlet pipe, the other end of the spring is fixed to the supporting plate, a pointer is fixed to one side of the supporting plate, a side base is fixed to the sealing cover, a scale groove is formed in the side base, a pair of semi-ring plates are symmetrically arranged on the two sides of the barrel body, and two supporting legs are fixed to one side of each pair of semi-ring plates. The plastic container solves the problems that when an existing plastic container is used, air pressure inside the plastic container can be increased, the plastic container expands, if the plastic container is not treated in time, the plastic container is prone to deformation, and if the plastic container is serious, the plastic container expands and bursts.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic container especially relates to a kind of anti-expansion plastic containers. BACKGROUND

[0002] Plastic containers are widely used in the packaging and transportation of various liquids, and have the characteristics of not being easy to break, not rusting, and being light in quality. In addition, plastic containers excel in oil resistance, acid and alkali resistance, and corrosion resistance, making them the ideal choice for packaging and transporting liquid chemical products. They are widely used in the chemical industry.

[0003] When chemical products are placed inside a plastic container barrel, the internal pressure can increase and cause expansion during transportation, especially when subjected to external impact. If not addressed promptly, the plastic container can deform, and in severe cases, it can burst.

[0004] Therefore, it is necessary to provide a new anti-expansion plastic container to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the utility model provides an anti-expansion plastic container, which solves the problem of the internal pressure of the existing plastic container increasing and causing expansion during use. If not addressed promptly, the plastic container can deform, and in severe cases, it can burst.

[0006] The anti-expansion plastic container provided by the utility model includes a barrel body, a sealing cover is threadedly connected to the top of the barrel body, a gas outlet pipe is communicatively arranged on the top of the sealing cover, a sliding column is slidably arranged inside the gas outlet pipe, a sealing piston is fixed to the bottom of the sliding column, a support plate is fixed to the top of the sliding column, and a spring is sleeved on the sliding column.

[0007] A gas outlet hole is formed on one side of the gas outlet pipe.

[0008] In a preferred embodiment, one end of the spring is fixed to the gas outlet pipe, and the other end of the spring is fixed to the support plate.

[0009] In a preferred embodiment, a pointer is fixed to one side of the support plate, a side seat is fixed to the sealing cover, and a scale groove is formed on the side seat.

[0010] In a preferred embodiment, a pair of half-ring plates is symmetrically arranged on both sides of the barrel body, and two support legs are fixed to one side of each pair of half-ring plates.

[0011] In a preferred embodiment, a connecting seat is fixed to both ends of each pair of half-ring plates, and adjacent connecting seats are fixedly connected by high-strength bolts.

[0012] In a preferred embodiment, the high-strength bolt is galvanized.

[0013] The utility model discloses the beneficial effect that:

[0014] The utility model discloses the beneficial effect that:

[0015] When the air pressure in the barrel body increases, the support plate is driven by the slide post and moves upward, and at this time, the pointer can point to a certain indication on the scale groove, so that the staff can grasp the change of the air pressure in the barrel body in time.

[0016] By setting multiple support legs, the anti-toppling capacity of the barrel body during transportation can be greatly increased, and damage caused by external impact can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides the main structure perspective view of the anti-expansion plastic container;

[0018] Figure 2 The utility model discloses the beneficial effect that: Figure 1 The utility model discloses the beneficial effect that:

[0019] Figure 3 The utility model provides the structure view of the air outlet pipe.

[0020] Reference Signs: 1, barrel body; 2, sealing cover; 3, air outlet pipe; 4, slide post; 5, sealing piston; 6, support plate; 7, spring; 8, air outlet hole; 9, side seat; 10, scale groove; 11, half ring plate; 12, support leg; 13, connecting seat; 14, high-strength bolt; 15, pointer. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and implementation.

[0022] Please refer to Figure 1 , Figure 2 and Figure 3 , wherein Figure 1 The utility model provides the main structure perspective view of the anti-expansion plastic container; Figure 2 The utility model discloses the beneficial effect that: Figure 1 The utility model discloses the beneficial effect that: Figure 3 The utility model provides the structure view of the air outlet pipe.

[0023] In the specific implementation process, such as Figures 1-3As shown, including barrel 1, barrel 1 top screw connection has sealing cover 2, sealing cover 2 top communication is provided with the gas pipe 3, the gas pipe 3 inside slidingly disposed with slide column 4, slide column 4 bottom fixed with sealing piston 5, slide column 4 top fixed with support plate 6, slide column 4 is set with spring 7, spring 7 one end is fixed on the gas pipe 3, spring 7 the other end is fixed on the support plate 6, the gas pipe 3 one side is provided with gas hole 8, the plastic container is used, when the pressure in the barrel 1 is not more than the critical value, sealing piston 5 can seal the gas pipe 3, avoid the leakage of the volatile chemical gas of the solution in the barrel 1.

[0024] When the pressure in the barrel 1 increases, the piston 5 can be moved upwards along the gas pipe 3, when the pressure increases to a certain critical value, the sealing piston 5 is moved upwards to the top of the gas hole 8, at this time, the gas in the barrel 1 can be discharged along the gas hole 8, to avoid the plastic container from being broken.

[0025] The support plate 6 is fixed with a pointer 15, and the sealing cover 2 is fixed with a side seat 9, and the side seat 9 is provided with a scale groove 10, when the pressure in the barrel 1 increases, the support plate 6 will be driven upwards by the slide column 4, at this time, the pointer 15 can point to a certain number on the scale groove 10, to facilitate the staff to grasp the change of the pressure in the barrel 1 in time.

[0026] A pair of half ring plates 11 are symmetrically arranged on both sides of the barrel 1, each half ring plate 11 is fixed with two support legs 12, and the two pairs of half ring plates 11 are fixed with connecting seats 13 at both ends, and the adjacent two connecting seats 13 are fixedly connected by high-strength bolts 14, the high-strength bolts 14 are galvanized to improve the waterproof ability and increase the service life, and the plurality of support legs 12 can greatly increase the anti-toppling ability of the barrel 1 during transportation, and avoid damage caused by external impact.

[0027] The working principle of the utility model is: when the plastic container is used, the piston 5 can be moved upwards along the gas pipe 3 when the pressure in the barrel 1 increases, when the pressure increases to a certain critical value, the sealing piston 5 is moved upwards to the top of the gas hole 8, at this time, the gas in the barrel 1 can be discharged along the gas hole 8, to avoid the plastic container from being broken;

[0028] When the pressure in the barrel 1 increases, the support plate 6 will be driven upwards by the slide column 4, at this time, the pointer 15 can point to a certain number on the scale groove 10, to facilitate the staff to grasp the change of the pressure in the barrel 1 in time;

[0029] The plurality of support legs 12 can greatly increase the anti-toppling ability of the barrel 1 during transportation, and avoid damage caused by external impact.

[0030] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. An anti-bulging plastic container comprising a barrel (1), characterized in that, The barrel body (1) top thread connection has sealing cover (2), sealing cover (2) top communication is provided with air pipe (3), air pipe (3) inside slidingly disposed with slide column (4), the slide column (4) bottom fixed sealing piston (5), the slide column (4) top fixed support plate (6), the slide column (4) on the spring (7) is set up. The air pipe (3) one side is provided with air hole (8).

2. The anti-bulging plastic container according to claim 1, wherein, One end of the spring (7) is fixed on the air pipe (3), the other end of the spring (7) is fixed on the support plate (6).

3. The anti-bulging plastic container according to claim 2, wherein, The support plate (6) one side is fixed with pointer (15), the sealing cover (2) is fixed with side seat (9), the side seat (9) is provided with scale groove (10).

4. The anti-bulging plastic container according to claim 3, wherein, The barrel body (1) both sides are provided with a pair of half ring plate (11), each pair of half ring plate (11) one side is fixed with two support leg (12).

5. The anti-bulging plastic container according to claim 4, wherein, Two pairs of half ring plate (11) both ends are fixed with connecting seat (13), adjacent two connecting seat (13) are fixedly connected through high strength bolt (14).

6. The anti-bulging plastic container according to claim 5, wherein, The high strength bolt (14) is galvanized.