CN215246764U - Plastic barrel cover capable of avoiding flatulence after opening - Google Patents

Abstract

The utility model discloses a avoid opening plastic drum bung of back flatulence, include the first ring body of being connected with the plastic drum, first ring body is connected with the second ring body through clamping device, and the second ring body is connected with the blast pipe through admitting the gas device, and the blast pipe is used for discharging extra gas in the plastic drum, is provided with the intermediate ring between first ring body and the second ring body, and the intermediate ring is convenient for the connection of first ring body and second ring body. The utility model discloses extra gas in the well plastic drum can promote the second piston rebound, make connecting rod and handle rebound, extra gas gets into in the cell body this moment, make extra gas can not assault plastic drum and bung, the potential safety hazard problem of current plastic drum and bung has been overcome, can also be through drawing the handle directly upwards, make the second piston rebound, until being located blast pipe upper portion, direct extra gas with in the plastic drum discharges to the outside, make the inside and outside atmospheric pressure of plastic drum the same, can not make plastic drum or bung swell.

Description

Plastic barrel cover capable of avoiding flatulence after opening

Technical Field

The utility model relates to a plastic products technical field especially relates to avoid opening the plastic drum bung of back flatulence.

Background

The plastic barrel is usually used for containing liquid products, a barrel cover is additionally arranged on the plastic barrel for isolating the liquid products from air and preventing spilling in transportation, at present, the plastic barrel and the barrel cover are connected in a threaded mode, the plastic barrel and the barrel cover can be well and tightly connected, and meanwhile, the plastic barrel has good sealing performance;

however, in practical situations, some liquid products can slowly generate additional gas, so that the air pressure in the plastic barrel is gradually increased and exceeds a standard atmospheric pressure, which means that the plastic barrel or the barrel cover can bulge, if the air pressure in the plastic barrel exceeds the bearing limit of the plastic barrel or the barrel cover, the plastic barrel or the barrel cover can explode, and considerable potential safety hazards are caused; therefore, the application provides a plastic bucket bung that avoids flatulence after opening.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the existing plastic drum bung with good sealing performance can not discharge extra gas in the plastic drum, and providing the plastic drum bung capable of avoiding opening the back flatulence.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

avoid opening plastic drum bung of back flatulence, include the first ring body of being connected with the plastic drum, first ring body is connected with the second ring body through clamping device, the second ring body is connected with the blast pipe through admitting the gas device, the blast pipe is used for discharging extra gas in the plastic drum, be provided with the intermediate ring between first ring body and the second ring body, the intermediate ring is convenient for the connection of first ring body and second ring body.

Preferably, the inner wall of the first ring body is provided with internal threads, and the first ring body is in threaded connection with the plastic barrel.

Preferably, clamping device specifically includes a cavity, the cavity from the bottom up passes through first ring body, intermediate ring and second ring body in proper order, the both ends of cavity are provided with first piston and conflict piece respectively, first piston and conflict piece and cavity inner wall sealing connection, still be provided with liquid in the cavity.

Preferably, the gas containing device specifically comprises a groove body arranged in the second ring body, the groove body penetrates through the side wall of the second ring body, and the groove body is respectively communicated with the exhaust pipe and the cavity.

Preferably, the air intake device further comprises a second piston arranged in the groove body, the second piston is connected with the inner wall of the groove body in a sealing mode, a connecting rod is fixedly connected to the second piston, a handle is fixedly connected to the end, far away from the second piston, of the connecting rod, a spring is sleeved on the outer wall of the connecting rod, and two ends of the spring are connected with the inner wall of the groove body and the second piston respectively.

Preferably, the annular groove has been seted up to the intermediate ring, annular inside wall fixedly connected with is sealed to fill up, sealed the adoption material of filling up is the rubber material.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses extra gas in the well plastic drum can promote the second piston rebound for connecting rod and handle rebound, extra gas gets into the cell body this moment, makes extra gas can not assault plastic drum and bung, has overcome the potential safety hazard problem of current plastic drum and bung.

2. The utility model discloses a removal of the extra gaseous first piston that drives in the plastic drum, through the conduction of liquid, drive the conflict piece and stretch to the outside of cavity to with the plastic drum contact, increased the connectivity between bung and the plastic drum, make the connection between bung and the plastic drum inseparabler, be difficult for breaking away from.

3. The utility model discloses a directly upwards draw the handle for the second piston rebound until being located blast pipe upper portion, can be directly with the extra gaseous discharge to the outside in the plastic drum, the handle is loosened to the back, and the second piston returns initial position, makes the inside and outside atmospheric pressure of plastic drum the same, can not make plastic drum or bung swell.

Drawings

Fig. 1 is a schematic structural view of a plastic barrel cover for preventing the plastic barrel from being inflated after being opened according to the present invention;

fig. 2 is a schematic diagram of a three-dimensional structure of a plastic barrel cover for avoiding flatulence after opening;

fig. 3 is a schematic structural view of the middle ring and the ring groove in the plastic bucket lid for avoiding the post-opening flatulence.

In the figure: the sealing structure comprises a first ring body 1, a second ring body 2, an exhaust pipe 3, a middle ring 4, a chamber 5, a first piston 6, a contact block 7, a groove 8, a second piston 9, a connecting rod 10, a handle 11, a spring 12, a ring groove 13 and a sealing gasket 14.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-3, the plastic barrel cover for avoiding the expansion after opening comprises a first ring body 1 connected with a plastic barrel, wherein the first ring body 1 is connected with a second ring body 2 through a clamping device, the second ring body 2 is connected with an exhaust pipe 3 through an air containing device, the exhaust pipe 3 is used for exhausting extra gas in the plastic barrel, an intermediate ring 4 is arranged between the first ring body 1 and the second ring body 2, and the intermediate ring 4 is convenient for the connection of the first ring body 1 and the second ring body 2;

furthermore, the inner wall of the first ring body 1 is provided with internal threads, and the first ring body 1 is in threaded connection with the plastic barrel;

the connection and disconnection between the first ring body 1 and the plastic barrel can be controlled through the rotation of the first ring body 1 relative to the plastic barrel;

further, the clamping device specifically comprises a chamber 5, the chamber 5 sequentially passes through the first ring body 1, the middle ring 4 and the second ring body 2 from bottom to top, a first piston 6 and a collision block 7 are respectively arranged at two ends of the chamber 5, the first piston 6 and the collision block 7 are hermetically connected with the inner wall of the chamber 5, and liquid is also arranged in the chamber 5;

referring to fig. 1, wherein the liquid in the chamber 5 fills the entire chamber 5 except for the first piston 6 and the abutment block 7, wherein the liquid is a special liquid and does not generate additional gas;

further, the gas containing device specifically comprises a groove body 8 arranged in the second ring body 2, the groove body 8 penetrates through the side wall of the second ring body 2, and the groove body 8 is respectively communicated with the exhaust pipe 3 and the cavity 5;

the groove body 8 is respectively communicated with the exhaust pipe 3 and the cavity 5, so that extra gas in the plastic barrel can also enter the cavity 5 and the exhaust pipe 3;

further, the air intake device further comprises a second piston 9 arranged in the groove body 8, the second piston 9 is hermetically connected with the inner wall of the groove body 8, a connecting rod 10 is fixedly connected to the second piston 9, a handle 11 is fixedly connected to the end, far away from the second piston 9, of the connecting rod 10, a spring 12 is sleeved on the outer wall of the connecting rod 10, and two ends of the spring 12 are respectively connected with the inner wall of the groove body 8 and the second piston 9;

the elastic force of the spring 12 is a pressure of a standard atmospheric pressure, and when extra gas appears in the plastic barrel, the pressure of the gas pressure in the plastic barrel exceeds the pressure of the standard atmospheric pressure, and the second piston 9 is pushed to move upwards;

furthermore, the middle ring 4 is provided with a ring groove 13, the inner side wall of the ring groove 13 is fixedly connected with a sealing gasket 14, and the sealing gasket 14 is made of rubber;

the sealing gasket 14 is in close contact with the opening of the plastic barrel, and has good sealing performance.

The utility model discloses a theory of operation:

rotating the first ring body 1 onto the plastic barrel and tightly connecting the first ring body with the plastic barrel;

when extra gas is generated in the plastic barrel, the second piston 9 is pushed to move upwards, so that the trough body 8 can contain the extra gas;

if the second piston 9 is pushed to the upper side of the first piston 6 by extra gas, the extra gas can push the first piston 6, so that the first piston 6 moves towards the direction far away from the second piston 9, the contact block 7 can be contacted with the outer wall of the plastic barrel, and the connection between the barrel cover and the plastic barrel is enhanced;

also can artificially draw handle 11 directly, draw second piston 9 to the top of blast pipe 3 for the outside air of plastic drum communicates with inside air, and extra gas is followed blast pipe 3 and is discharged, and the back is loosened handle 11, and second piston 9 returns initial position.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. Avoid opening plastic drum bung of back flatulence, its characterized in that includes the first ring body of being connected with the plastic drum, first ring body is connected with the second ring body through clamping device, the second ring body is connected with the blast pipe through admitting the gas device, the blast pipe is used for discharging extra gas in the plastic drum, be provided with the intermediate ring between first ring body and the second ring body, the intermediate ring is convenient for the connection of first ring body and second ring body.

2. A lid for a plastic drum to avoid post-opening flatulence as defined in claim 1, wherein said first ring has an inner thread on its inner wall, and said first ring is screwed to said plastic drum.

3. A plastic bucket cover capable of avoiding post-opening flatulence as defined in claim 1, wherein said clamping device comprises a chamber, said chamber passes through the first ring, the intermediate ring and the second ring from bottom to top, the two ends of said chamber are respectively provided with a first piston and a collision block, said first piston and said collision block are connected with the inner wall of said chamber in a sealing manner, and said chamber is further provided with liquid.

4. A plastic bucket cover for avoiding post-opening flatulence as defined in claim 3, wherein said air-receiving device comprises a slot body disposed in the second ring body, said slot body penetrates through the side wall of the second ring body, said slot body is respectively communicated with the vent pipe and the chamber.

5. A plastic bucket lid capable of avoiding post-opening inflation as claimed in claim 4, wherein the air intake device further comprises a second piston arranged in the groove, the second piston is hermetically connected with the inner wall of the groove, a connecting rod is fixedly connected to the second piston, a handle is fixedly connected to the end of the connecting rod far away from the second piston, a spring is sleeved on the outer wall of the connecting rod, and two ends of the spring are respectively connected with the inner wall of the groove and the second piston.

6. A plastic bucket lid capable of avoiding post-opening flatulence as defined in claim 1 wherein said middle ring is formed with a circular groove, and a sealing gasket is fixedly connected to the inner side wall of said circular groove, said sealing gasket being made of rubber.

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