JP2003128184A - Mechanism to prevent damage of vessel such as tank and container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely prevent a container from getting damaged due to careless handling or the like of an operator without causing a negative pressure in the container by carelessness or the like of the operator, since a mechanism is designed to prevent contents from being discharged when a deaerating portion is not opened. SOLUTION: The mechanism to prevent damage of a container of such a type that a discharging portion is provided on a lower part and the deaerating portion is provided on an upper part includes a coupling means to cause the deaerating portion to be opened in conjunction with an opening operation of the discharging portion, or a coupling means which does not allow the discharging portion to be opened only after the deaerating portion is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for preventing damage to a container such as a tank or a container, and more particularly to a mechanism for preventing damage to a tank, a container or the like of a type having a discharge part at the bottom and an air vent part at the top. It is about.

[0002]

2. Description of the Related Art Conventionally, foods, chemicals, chemicals, oils and fats, paints, inks, dyes, poisonous substances, agricultural chemicals, adhesive liquids, alkalis,
As a container for accommodating various liquids such as acids, developers, surfactants, metal surface treatment agents, various chemical substance powders, granules, drug powders, yeasts, other powders, etc. Types have been developed and used. For example, a stationary tank that is fixedly arranged at a predetermined place and is used for discharging and distributing the desired liquid, powder, granules, etc. stored, a desired liquid, powder, There is a moving tank (flat body loading type) that is used in place of a tank truck for the purpose of moving particles from a place where they are stored to a certain place and distributing and discharging them. In addition, as the mobile type, work by machines (forklifts, etc.) and vehicles, freight cars,
There is also a container as a medium-sized container that is transported and moved by ship. Many of these stationary tanks and movable tanks are made of resin, but in recent years, metal such as stainless steel, titanium, hastelloy, and nickel have become mainstream.

There are various structures of these tanks and containers, but as a convenient type for discharging and distributing the contents, a discharge valve as a discharge part at the bottom and an air valve as an air bleeding part at the top. A type of tank, container, etc. having a discharge valve has been used. In this type of tank and container, in order to discharge and distribute the contents, the operator must prevent the container body from being damaged due to the negative pressure phenomenon in the container body when discharging the contents. First, the opening operation of the air bleeding valve is performed, and then the opening operation of the discharge port valve is performed.

[0004]

However, in the structure of the conventional type tank, container, etc. as described above,
Since the operation of the lower discharge part and the operation of the upper air bleeding part had to be performed as separate operations,
I forgot to open the upper air vent,
The opening operation of the lower discharge part was often performed. In such a state, if the contents are continuously discharged from the discharge port by the pump, a negative pressure is generated due to the space generated by the discharge of the contents in the upper part of the container body, and the container body is damaged. There were a lot of things that happened.

An object of the present invention is to provide a mechanism for preventing breakage of a container such as a tank or a container which can solve the above-mentioned conventional problems.

[0006]

According to one aspect of the present invention, in a damage preventive mechanism for a container of a mold having a discharge portion at a lower portion and an air bleeding portion at an upper portion, the mechanism is interlocked with an opening operation of the discharge portion. There is provided a container damage prevention mechanism including a connecting means for performing an opening operation of the air bleeding portion.

According to one embodiment of the present invention, the discharge part is provided with a discharge port valve for opening and closing the discharge part, and the air discharge part is provided with the air discharge part. An air bleeding valve for opening and closing is provided, and the connecting means includes a connecting member that connects the operating handle of the outlet valve and the operating handle of the air bleeding valve.

According to one embodiment of the present invention, the connecting member is a connecting wire connected to both the operating handles through a guide member.

According to another embodiment of the present invention, the connecting member is a connecting rod rod connected to the both operating handles through a link and a cam mechanism.

According to another aspect of the present invention, in a damage preventive mechanism for a container of a mold having a discharge part at a lower portion and an air bleeding portion at an upper part, the opening operation of the discharge portion must be performed only after the opening operation of the air bleeding portion. A mechanism for preventing damage to a container is provided, which is provided with a connecting means for preventing the operation of the container.

According to one embodiment of the present invention, the discharge part is provided with a discharge port valve for opening and closing the discharge part, and the air discharge part is provided with the air discharge part. An air vent cap for opening and closing is provided, and the connecting means includes a connecting member that connects the operating handle of the discharge port valve and the air vent cap.

According to an embodiment of the present invention, the connecting member is a connecting wire connected to the operating handle and the air bleeding cap through a guide member.

According to another embodiment of the present invention, the connecting member is a connecting rod rod connected to the operating handle and the air bleeding cap via a link and a cam mechanism.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to the accompanying drawings with regard to embodiments and examples of the present invention.

FIG. 1 is a front view of a container having a breakage preventing mechanism according to an embodiment of the present invention.
3 is a plan view thereof, and FIG. 3 is a view taken along the line AA of FIG. As shown in these figures, the container of this embodiment connects a base portion 11, four support columns 12 erected at four corners of the base unit 11, and upper portions of these four support columns 12. Container support 1 consisting of horizontal frame 13
0, and a container body 20 placed on the base portion 11 of the container support 10 and fixed in the container support 10 by a fixing band 14.

A suspension hook hole 12A is formed on the side surface of the upper end of the column 12, so that the container can be suspended and moved by a forklift or the like.
On the other hand, in this embodiment, the container body 20 is formed into a cylindrical round shape with a stainless material or the like, and the discharge conduit 21 is connected to the container body 20 so as to extend from the center of the lower portion to the front. A discharge valve 22 is provided in the middle of the discharge conduit 21, and the discharge distribution of the contents can be controlled by opening and closing the discharge valve 22. In addition, the front end of the discharge conduit 21 has a discharge port 23.
The discharge port 23 can be connected to a discharge pump or the like.

At the center of the upper part of the container body 20, there is formed a manhole port 24 for opening and using when filling the contents or cleaning the inside of the container body. When the manhole port 24 is not used, A manhole cover 25 is also provided to keep it closed. Furthermore, a safety valve 26 is provided behind the upper portion of the container body 20 to prevent a high pressure state generated inside the container body 20 and prevent the risk of the container body 20 rupturing.

An air bleeding conduit 27 is provided on the upper side of the container body 20 for preventing the risk that the container body 20 will be damaged due to negative pressure inside when the contents are discharged. Are connected. An air bleeding valve 28 is provided in the middle of the air bleeding conduit 27. By opening and closing the air bleeding valve 28, the container body 2
The introduction of air into 0 can be controlled.

According to the present invention, a connecting wire 30 for connecting the operation handle 22A of the outlet valve 22 and the operation handle 28A of the air bleeding valve 28 is provided as a container damage preventing mechanism. This connecting wire 30
Through the guide member 31, such as an eye nut, which is dispersedly arranged in a proper position of the container support 10,
It is pulled between A and the operation handle 28A.

In the container of this embodiment, the operating handle 22A of the outlet valve 22 and the air bleeding valve 2
Since the operation handle 28A of No. 8 is connected to the operation wire 28A by the connecting wire 30, the operator discharges and distributes the contents such as liquid, powder and granules contained in the container body 20 from the discharge port 23. For operating handle 22 of outlet valve 22
Whenever A is operated to open the outlet 23, the operating handle 28A of the air bleeding valve 28 is also actuated via the connecting wire 30 to open the air bleeding conduit 27. Therefore, even if a space is created in the upper part inside the container body 20 by discharging the contents from the discharge port 23, the air is introduced into the space through the air vent conduit 27. However, there is no possibility that the container body 20 is damaged due to negative pressure.

In the above-described embodiment, the connecting wire is used as a mechanism for interlocking the operation handle 22A of the outlet valve 22 and the operation handle 28A of the air bleeding valve 28. It is not limited to this. For example, a lot rod could be used instead of a connecting wire. When a lot rod is used, a link or cam mechanism is used instead of a guide member such as an eye nut, so that the operation handle 2 of the discharge valve 22 can be used.
2A and the operation handle 28A of the air bleeding valve 28 can be interlocked. When the link and cam mechanisms are used in this way, when the operation handle 22A is operated to close the discharge and distribution of the contents and close the discharge port valve 22, the air bleeding valve is interlocked with this operation. It is also possible to close 28.

FIG. 4 is a partial view for explaining another embodiment of the present invention. FIG. 4 is a partial plan view of a container corresponding to the upper right portion of FIG.
Similar reference numerals are used. As shown in FIG. 4, in the container of this embodiment, an air vent valve is provided in the middle of the air vent conduit 27 provided on the upper side of the container body 20 to control the opening and closing, but not the air vent conduit. 27
The opening is opened and closed by an air bleeding cap 29. The connecting wire 30 as a container damage preventing mechanism according to the present invention is connected between the operation handle 22A of the outlet valve 22 (see the embodiment of FIGS. 1 to 3) and the air bleeding cap 29.

Therefore, in the container of the embodiment shown in FIG. 4, the operator discharges the contents such as liquid, powder, and granules contained in the container body 20 from the discharge port 23 in order to discharge the contents. Even if the operator operates the operation handle 22A of the outlet valve 22, the outlet valve 22 is not removed unless the air vent cap 29 is removed from the opening of the air vent conduit 27.
Can't open. In other words, when the worker wants to discharge and distribute the contents from the container body 20, the worker cannot remove the air vent cap 29 before opening and discharging the discharge port valve 22 to perform the discharge and distribution. become. Therefore, when the contents are discharged from the discharge port 23, the air vent cap 29 is always removed, and air is introduced into the container body 20 through the air vent conduit 27. Cause the container body 20
There is no fear of damage.

As described in the case of the embodiment of FIGS. 1 to 3, also in the case of the embodiment of FIG. 4, instead of the connecting wire,
Lot bars, links and cam mechanisms can be used. In the above-described embodiment, the breakage prevention mechanism of the present invention is applied to the cylindrical round container, but the present invention is not limited to this, and can be applied to a prismatic rectangular container, etc. It can be applied to various containers such as mold containers and tanks.

[0025]

EFFECTS OF THE INVENTION Since the mechanism is such that the contents are not discharged when the air bleeding portion is not opened, a negative pressure may be generated in the container due to the carelessness of the operator. Nothing happens, and it is possible to completely prevent damage to the container due to carelessness by the operator.

[Brief description of drawings]

FIG. 1 is a front view of a container including a damage prevention mechanism according to an embodiment of the present invention.

2 is a plan view of the container of FIG. 1. FIG.

FIG. 3 is a view taken along the line AA of FIG.

FIG. 4 is a partial view for explaining another embodiment of the present invention.

[Explanation of symbols]

10 Container support 11 Base part 12 props 13 horizontal frames 14 fixed band 20 container body 21 discharge conduit 22 Outlet valve 22A operation handle 23 outlet 24 Manhole mouth 25 manhole cover 26 Safety valve 27 Air bleed conduit 28 Air bleeding valve 28A operation handle 29 Air bleeding cap 30 connecting wire 31 Guide member

Claims (8)

[Claims] 1. A damage preventing mechanism for a container of a mold having a discharge part at a lower portion and an air bleeding part at an upper portion, further comprising a connecting means for interlocking with an opening operation of the discharging part to perform an opening operation of the air bleeding part. A mechanism for preventing damage to a container, which is characterized in that 2. The discharge section is provided with a discharge port valve for opening and closing the discharge section, and the air bleeding section is provided with an air bleeding valve for opening and closing the air bleeding section. The container damage preventing mechanism according to claim 1, wherein the connecting means includes a connecting member that connects the operation handle of the outlet valve and the operation handle of the air bleeding valve. 3. The container damage preventing mechanism according to claim 2, wherein the connecting member is a connecting wire connected to the both operation handles through a guide member. 4. The container damage preventing mechanism according to claim 2, wherein the connecting member is a connecting lot rod connected to the both operation handles through a link and a cam mechanism. 5. A mechanism for preventing damage to a container of a mold having a discharge part at a lower portion and an air bleeding portion at an upper portion, the connecting means for preventing the discharge operation of the discharge portion from being performed only after the opening operation of the air bleeding portion. A mechanism for preventing damage to a container, comprising: 6. The outlet part is provided with an outlet valve for opening and closing the outlet part, and the air vent part is provided with an air vent cap for opening and closing the air vent part. The container damage preventing mechanism according to claim 5, wherein the connecting means includes a connecting member that connects the operation handle of the outlet valve and the air bleeding cap. 7. The container damage preventing mechanism according to claim 6, wherein the connecting member is a connecting wire connected to the operation handle and the air bleeding cap through a guide member. 8. The container damage preventing mechanism according to claim 6, wherein the connecting member is a connecting lot rod connected to the operation handle and the air bleeding cap via a link and a cam mechanism.