CN219035555U

CN219035555U - Automatic exhaust device of packaging barrel

Info

Publication number: CN219035555U
Application number: CN202223565123.9U
Authority: CN
Inventors: 林俏雅
Original assignee: Hunan Zexia Biotechnology Co ltd
Current assignee: Hunan Zexia Biotechnology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-16
Anticipated expiration: 2032-12-30

Abstract

The utility model provides an automatic exhaust device of a packaging barrel, which comprises a barrel cover and an exhaust valve arranged in the barrel cover, wherein the barrel cover is provided with an exhaust hole; the exhaust valve comprises an upper valve seat, an upper valve core, a valve hole, a lower valve seat and a lower valve core; the upper valve seat is columnar, the inside of the upper valve seat is hollow, the top surface of the upper valve seat is open, the bottom surface of the upper valve seat is closed, the exhaust hole is communicated with the upper valve seat, the valve hole penetrates through the bottom surface of the upper valve seat, and an upper valve core matched with the valve hole in shape is arranged in the valve hole to control the opening and closing of the valve hole; the lower valve seat is arranged at the bottom of the upper valve seat, is conical with wide top surface and narrow bottom surface, is hollow in the lower valve seat and is open in the top surface and the bottom surface, and the lower valve core is a sphere arranged in the lower valve seat and is used for controlling the opening and closing of the lower valve seat; the automatic exhaust device of the packaging barrel can jack up the valve core through the air pressure when the air pressure in the barrel body rises to a certain degree, and the generated air is automatically exhausted by utilizing the exhaust channel, so that the effects of preventing the barrel from expanding and improving the safety of the packaging barrel are achieved.

Description

Automatic exhaust device of packaging barrel

Technical Field

The utility model relates to the technical field of containers, in particular to an automatic exhaust device of a packaging barrel.

Background

The packaging barrel refers to various barreled packaging containers, and is mainly used for containing various liquid products, wherein the plastic packaging barrel is most widely used, has the good characteristics of being not fragile, not rusting, light in weight and the like, and can be used for containing chemical agents, microbial deodorant, liquid fertilizer and other articles.

Taking microbial deodorant as an example, most microbial deodorant produced currently adopts a plastic packaging barrel (generally 25kg capacity) for sub-packaging, the plastic packaging barrel comprises a barrel body and a barrel cover, a feeding and discharging hole is formed in the upper portion of the barrel body, the barrel cover is connected with the feeding and discharging hole through threads, packaging of the barrel body is achieved, however, the microbial deodorant can generate gas due to microbial metabolism and the like in the storage process, so that the pressure in the barrel is increased, the phenomenon of barrel expansion occurs, when the microbial deodorant is stacked in multiple layers, skew can occur, unstable and even toppling occurs, particularly after long-time storage, if the gas in the barrel is not discharged midway, high air pressure in the barrel can cause release of the gas at the moment of opening the barrel cover to bring a certain impact force, and a small amount of microbial deodorant can also flow along with the gas, so that the safety of the plastic packaging barrel is low, and the problem needs to be solved.

Disclosure of Invention

The utility model aims to solve the problems and provide an automatic exhaust device of a packaging barrel, which can automatically exhaust gas generated in the packaging barrel in the long-term storage process, prevent the packaging barrel from expanding and improve the safety of the packaging barrel.

The utility model adopts the following technical scheme to realize the aim of the utility model: the automatic exhaust device of the packaging barrel comprises a barrel body, wherein a feeding and discharging hole is formed in the barrel body, the automatic exhaust device comprises a barrel cover in threaded connection with the feeding and discharging hole and an exhaust valve arranged in the barrel cover, and an exhaust hole is formed in the barrel cover; the exhaust valve comprises an upper valve seat, an upper valve core, a valve hole, a lower valve seat and a lower valve core;

the upper valve seat is columnar, the inside of the upper valve seat is hollow, the top surface of the upper valve seat is open, the bottom surface of the upper valve seat is closed, the exhaust hole is communicated with the upper valve seat, the valve hole penetrates through the bottom surface of the upper valve seat, and an upper valve core matched with the valve hole in shape is arranged in the valve hole to control the opening and closing of the valve hole;

the lower valve seat is arranged at the bottom of the upper valve seat, is conical with wide top surface and narrow bottom surface, is hollow in the lower valve seat and is open in the top surface and the bottom surface, and the lower valve core is a ball arranged in the lower valve seat and is used for controlling the opening and closing of the lower valve seat.

Further, the exhaust valve further comprises a valve rod fixedly connected between the upper valve core and the lower valve core.

Preferably, the valve hole is a truncated cone hole with a wide top surface and a narrow bottom surface arranged along the vertical direction, and the upper valve core is a truncated cone valve core matched with the truncated cone hole.

Further, a liquid blocking head which is outwards protruded to be spherical is fixedly arranged at the opening at the bottom of the lower valve seat, at least one exhaust slit is formed in the liquid blocking head, and the exhaust slit is cross-shaped or I-shaped or Y-shaped.

Further, the exhaust valve further comprises a waterproof and breathable membrane, and the waterproof and breathable membrane is installed inside the upper valve seat or the lower valve seat.

Preferably, a sealing ring is arranged in the barrel cover.

Further, the automatic exhaust device also comprises a sealing plug, wherein the sealing plug comprises a sealing column matched with the exhaust hole and a handle arranged at one end of the sealing column, and the sealing column controls the opening and closing of the exhaust hole.

Preferably, the sealing plug is connected to the barrel cover through a connecting band.

By adopting the technical scheme, the automatic exhaust device of the packaging barrel better achieves the aim, when the air pressure in the barrel body rises to a certain degree, the valve core is jacked up by the air pressure, and the generated gas is automatically exhausted by utilizing the exhaust channel, so that the effects of preventing the barrel from expanding and improving the safety of the packaging barrel are achieved; meanwhile, when the air pressure in the barrel body is recovered to be normal, the valve core closes the exhaust channel due to gravity falling back, so that dust and the like in the external environment can be prevented from entering the barrel body; the waterproof ventilated membrane can be used as a filter layer for internal and external air exchange, and can prevent leakage of the exhaust channel when the packaging barrel inclines or shakes, and the liquid blocking head can prevent fluid in the barrel from entering the exhaust channel in the exhaust valve to a certain extent.

Drawings

FIG. 1 is a schematic view of the whole cross-sectional structure of an automatic exhaust device in the present utility model.

Fig. 2 is a bottom view of the liquid barrier head 27 of the present utility model.

Fig. 3 is a schematic cross-sectional view of the sealing plug 3 according to the utility model.

Fig. 4 is a schematic view of the entire sectional structure of the packaging barrel with the automatic exhausting device.

The reference numerals are described in the following table.

Number of marks	Tag name	Number of marks	Tag name
					1	Barrel cover 1	26	Valve stem 26
11	Exhaust hole 11	27	Liquid barrier head 27
				12	Seal ring 12	271	Exhaust slit 271
2	Exhaust valve 2	28	Waterproof breathable film 28
				21	Upper valve seat 21	3	Sealing plug 3
22	Upper valve core 22	31	Sealing post 31
				23	Valve hole 23	32	Handle 32
24	Lower valve seat 24	4	Barrel body 4
				25	Lower valve core 25	41	Feed and discharge port 41

Detailed Description

For a clearer description of embodiments of the utility model or of the solutions of the prior art, the drawings that are needed in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art, the utility model being further described below with reference to the accompanying drawings:

example 1

Referring to fig. 1 and 4 of the specification, an automatic exhaust device of a packaging barrel comprises a barrel body 4, wherein a feeding and discharging hole 41 is formed in the barrel body 4, the automatic exhaust device comprises a barrel cover 1 in threaded connection with the feeding and discharging hole 41 and an exhaust valve 2 arranged in the barrel cover 1, and an exhaust hole 11 is formed in the middle of the barrel cover 1; the exhaust valve 2 comprises an upper valve seat 21, an upper valve core 22, a valve hole 23, a lower valve seat 24 and a lower valve core 25; a sealing ring 12 is arranged in the barrel cover 1, so that the tightness of the end part of the material inlet and outlet 41 is ensured after the barrel cover 1 is in threaded connection with the material inlet and outlet 41;

the upper valve seat 21 is columnar, the inside of the upper valve seat 21 is hollow, the top surface of the upper valve seat 21 is open, the bottom surface of the upper valve seat is closed, the upper valve seat 21 is connected and installed in the barrel cover 1 through the open top surface of the upper valve seat 21, the exhaust hole 11 corresponds to the upper valve seat 21 in the vertical direction and is communicated with the upper valve seat, the valve hole 23 penetrates through the closed bottom surface of the upper valve seat 21, the upper valve core 22 matched with the valve hole 23 in shape is installed in the valve hole 23 to control the opening and closing of the valve hole 23, specifically, the valve hole 23 is a circular truncated cone hole with a wide top surface and a narrow bottom surface, the upper valve core 22 is a circular truncated cone valve core matched with the circular truncated cone hole, and the circular truncated cone valve core can seal the circular truncated cone hole to close an exhaust channel;

the lower valve seat 24 is arranged at the bottom of the upper valve seat 21, the lower valve seat 24 is conical with wide top surface and narrow bottom surface, the inside of the lower valve seat 24 is hollow, the top surface and the bottom surface of the lower valve seat are open, the lower valve core 25 is a sphere arranged in the lower valve seat 24, and the outer spherical surface of the sphere is in annular contact with the inner conical surface of the lower valve seat 24 so as to enable the lower valve seat 24 to be closed, and the exhaust passage to be closed;

the exhaust passage is sequentially from inside to outside: the bottom surface of the lower valve seat 24, the hollow interior of the lower valve seat 24, the top surface of the lower valve seat 24, the valve hole 23, the hollow interior of the upper valve seat 21, the top surface of the upper valve seat 21, and the exhaust hole 11.

In one embodiment, referring to fig. 1, the exhaust valve 2 further includes a valve rod 26 fixedly connected between the upper valve core 22 and the lower valve core 25, and the upper valve core 22 and the lower valve core 25 can be linked and synchronized by the valve rod 26, so that the upper valve seat and the lower valve seat can be simultaneously opened and closed, on one hand, the sealing performance of the valve core can be increased when no exhaust is performed, and on the other hand, the exhaust effect can be improved when the valve is synchronously opened during the exhaust.

Specifically, when the air pressure in the barrel 4 is greater than the total weight of the upper valve core 22, the lower valve core 25 and the valve rod 26, the air pressure jacks up the upper valve core 22, the lower valve core 25 and the valve rod 26, at this time, the exhaust channel is opened, the air in the barrel 4 is discharged, and when the air pressure in the barrel 4 is less than the total weight of the upper valve core 22, the lower valve core 25 and the valve rod 26, the upper valve core 22, the lower valve core 25 and the valve rod 26 close the exhaust channel due to falling back of the gravity.

The purpose of the double valve seat using the upper valve seat 21 and the lower valve seat 24 is to: if the conical lower valve seat 24 is simply used, the lower valve core 25 is a sphere, the outer spherical surface of the sphere contacts with the inner conical surface of the lower valve seat 24 when the exhaust channel is closed, the contact part is in a linear sealing mode, the contact area is small, so that dust and the like in the external environment easily enter the barrel body, meanwhile, aiming at some liquid materials with special fragrance, the poor sealing performance can lead to quick volatilization and dissipation of the special fragrance (such as microbial deodorant with fragrance agent, the corresponding fragrance enhancing effect cannot be achieved after the fragrance agent volatilizes and dissipates), but the bottom of the conical lower valve seat 24 is a closing type, the liquid materials can be prevented from entering to a certain extent, and the problem of poor sealing performance of the conical lower valve seat 24 can be solved again by adopting the sealing mode that the arc surface of the round table in the upper valve seat 21 contacts with the arc surface of the valve hole 23, so that the double valve seats of the upper valve seat 21 and the lower valve seat 24 can enable the sealing performance of the valve core to be better without influencing the effect in exhaust, and the liquid materials can be prevented from entering the upper valve seat 21 and the lower valve seat 24 to a certain extent.

The inventor found that, during the handling or transportation of the packaging barrel, if the packaging barrel tilts or topples over, the upper valve core 22 and the lower valve core 25 cannot block the liquid material, and the liquid material in the barrel body can leak directly through the air exhaust channel, so referring to fig. 1, the air exhaust valve 2 further comprises a waterproof and air-permeable membrane 28, the waterproof and air-permeable membrane 28 is installed inside the upper valve seat 21 or the lower valve seat 24, so that more waterproof and air-permeable membranes 28 on the air exhaust channel can smoothly pass through, and the liquid material can be blocked by the waterproof and air-permeable membranes 28 even if the packaging barrel tilts or topples over, so that the liquid material can be prevented from leaking, the waterproof and air-permeable membranes 28 can also prevent the water vapor in the barrel body 4 from volatilizing, and meanwhile, the waterproof and air-permeable membranes 28 can also prevent dust and the like in the external environment from entering the barrel body 4.

Preferably, the waterproof and breathable membrane 28 is installed in the upper valve seat 21, and meanwhile, the installation position of the waterproof and breathable membrane 28 can prevent the upper valve core 22 from being completely separated from the valve hole 23, so as to prevent the upper valve core 22 from being unable to return independently after being completely separated from the valve hole 23, and the upper valve core 22 can only move in the vertical space of the valve hole 23 after being limited and cannot be separated from the valve hole 23; while the waterproof and breathable membrane 28 may be mounted in the upper valve seat 21 by conventional adhesive backing or ultrasonic welding.

Meanwhile, even if the above-mentioned design of the double valve seats of the upper valve seat 21 and the lower valve seat 24 is adopted, during the carrying or transporting process of the packaging barrel, the liquid material in the packaging barrel can shake left and right and enter the inside of the exhaust valve 2 through the bottom opening of the lower valve seat 24, the liquid material is attached to the upper valve core 22, the lower valve core 25 and the waterproof ventilated membrane 28, which may affect the service effect and the service life of the exhaust valve 2, then referring to fig. 1 and 2, the bottom opening of the lower valve seat 24 is fixedly provided with the liquid blocking head 27 which protrudes outwards and is spherical, the liquid blocking head 27 is provided with an exhaust slit 271, the exhaust slit 271 is in a cross shape or a linear shape (only one of the Y-shaped exhaust slit 271 is shown in fig. 2, the cross shape or the linear shape is correspondingly thought of, so the corresponding figure is not shown), the liquid blocking head 27 is made of silica gel or latex material, the exhaust slit tends to be naturally closed, the liquid blocking head 27 is similar to a nipple used by infants, the liquid blocking head 27 can block the liquid material, when the inside the barrel body 4 is higher than the air pressure of the infant, the exhaust slit 271 is naturally opened from the top air pressure of the infant.

Because the automatic exhaust device can only play its role when the liquid material generating gas is contained in the packaging barrel, in order to prevent ash layers and the like in the external environment from entering the automatic exhaust device for a new unused packaging barrel, the service life of the automatic exhaust device is prolonged, and when the used packaging barrel is used for containing other liquid materials which do not generate gas, waste is utilized, and the universality of the packaging barrel is improved, referring to fig. 3 and 4, the automatic exhaust device further comprises a sealing plug 3, which comprises a sealing post 31 matched with the exhaust hole 11 and a handle 32 arranged at one end of the sealing post 31, wherein the sealing post 31 can be made of rubber materials, and the sealing post 31 is plugged into the exhaust hole 11 to control the closing of the exhaust hole 11, so that the exhaust channel is thoroughly closed.

In a preferred embodiment, the sealing plug 3 is attached to the lid 1 by a connecting band, preventing the sealing plug 3 from falling off or even being lost.

The principle of the automatic exhaust device of the packaging barrel is as follows: when the barrel body 4 is added with corresponding liquid materials through the feeding and discharging hole 41, the barrel cover 1 is tightly screwed on the feeding and discharging hole 41 through threads, the sealing plug 3 is pulled out, when the packaging barrel is in a normal upright state, the exhaust slit 271 is propped up into the exhaust valve 2 along with the increase of gas in the packaging barrel and the increase of pressure, when the gas pressure is increased to be greater than the total gravity of the upper valve core 22, the lower valve core 25 and the valve rod 26, the upper valve core 22, the lower valve core 25 and the valve rod 26 are propped up by the gas pressure, at the moment, the exhaust channel is opened, the gas in the barrel body 4 is discharged, and when the gas pressure in the barrel body 4 is less than the total weight of the upper valve core 22, the lower valve core 25 and the valve rod 26, the exhaust channel is closed due to the falling back of gravity, so that the automatic exhaust is realized, the problem that the packaging barrel is not expanded is ensured, and the use safety is improved; in addition, when tilting or pouring of the packaging barrel occurs, the liquid material is blocked by the waterproof breathable film 28, preventing leakage of the liquid material.

It is clear that modifications and/or additions of parts may be made to the automatic venting device of packaging barrels and to the corresponding method, without departing from the field and scope of the present utility model.

It is also clear that, although the present utility model has been described in detail with respect to a self-venting device for a packaging barrel, a person skilled in the art shall certainly be able to achieve many other equivalent forms of self-venting device for a packaging barrel and a corresponding method, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

Claims

1. The utility model provides an automatic exhaust device of pail pack, the pail pack includes staving (4), is equipped with feed outlet (41), its characterized in that on staving (4): the automatic exhaust device comprises a barrel cover (1) in threaded connection with a feed inlet and a feed outlet (41) and an exhaust valve (2) arranged in the barrel cover (1), and an exhaust hole (11) is formed in the barrel cover (1); the exhaust valve (2) comprises an upper valve seat (21), an upper valve core (22), a valve hole (23), a lower valve seat (24) and a lower valve core (25);

the upper valve seat (21) is columnar, the inside of the upper valve seat is hollow, the top surface of the upper valve seat is open, the bottom surface of the upper valve seat is closed, the exhaust hole (11) is communicated with the upper valve seat (21), the valve hole (23) is arranged on the bottom surface of the upper valve seat (21) in a penetrating way, and the upper valve core (22) matched with the valve hole (23) in shape is arranged in the valve hole (23) to control the opening and closing of the valve hole (23);

the lower valve seat (24) is arranged at the bottom of the upper valve seat (21), the lower valve seat (24) is conical with wide top surface and narrow bottom surface, the inside of the lower valve seat is hollow, the top surface and the bottom surface of the lower valve seat are open, and the lower valve core (25) is a ball arranged in the lower valve seat (24) and is used for controlling the opening and closing of the lower valve seat (24).

2. The automatic exhaust device according to claim 1, characterized in that: the exhaust valve (2) further comprises a valve rod (26) fixedly connected between the upper valve core (22) and the lower valve core (25).

3. The automatic exhaust device according to claim 1, characterized in that: the valve hole (23) is a truncated cone-shaped hole with a wide top surface and a narrow bottom surface which are arranged along the vertical direction, and the upper valve core (22) is a truncated cone-shaped valve core matched with the truncated cone-shaped hole.

4. The automatic exhaust device according to claim 1, characterized in that: the bottom opening of the lower valve seat (24) is fixedly provided with a liquid blocking head (27) which is outwards protruded into a spherical shape, the liquid blocking head (27) is provided with at least one exhaust slit (271), and the exhaust slit (271) is cross-shaped or I-shaped or Y-shaped.

5. The automatic exhaust device according to claim 1, characterized in that: the exhaust valve (2) further comprises a waterproof and breathable membrane (28), and the waterproof and breathable membrane (28) is arranged inside the upper valve seat (21) or the lower valve seat (24).

6. The automatic exhaust device according to claim 1, characterized in that: a sealing ring (12) is arranged in the barrel cover (1).

7. The automatic exhaust device according to claim 1, characterized in that: the automatic exhaust device further comprises a sealing plug (3), wherein the sealing plug comprises a sealing column (31) matched with the exhaust hole (11) and a handle (32) arranged at one end of the sealing column (31), and the sealing column (31) controls the exhaust hole (11) to be opened and closed.

8. The automatic exhaust device according to claim 7, characterized in that: the sealing plug (3) is connected to the barrel cover (1) through a connecting belt.