Storage tool

Abstract

To provide a storage tool capable of suppressing breakage of a container in an internal space when the container containing a combustible liquid is transported, and preventing the leaked combustible liquid from leaking to the outside even when the container is broken.SOLUTION: By surrounding the periphery of the container 10 with the main body part 2, an impact or the like on the container 10 can be reduced, and leakage of the flammable liquid due to breakage of the container 10 can be suppressed. In the storage tool 1, the opening part 11 of the body part 2 after storing the container is covered with the lid part 3, and the lid part 3 is fixed in a state of being pressed to the body part 2 by the fixing lock 6. At this time, the sealing member 4 disposed between the lid 3 and the edge around the opening 11 of the body 2 is compressed between the lid 3 and the body 2. As a result, the lid 3 comes into close contact with the main body 2 via the sealing member 4, so that the internal space SP is sealed. Therefore, even if the flammable liquid leaks into the internal space SP of the storage tool 1, the flammable liquid can be kept in the internal space SP.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a storage device. [Background technology]

[0002] At factories and construction sites, it is sometimes necessary to transport highly flammable liquids to the site for use as fuel or in laboratory equipment. In such cases, transporters take great care to ensure safety when transporting containers, but no matter how careful they are, there is always the possibility of a flammable liquid leaking due to human error, unexpected circumstances, road conditions, or natural disasters.

[0003] In Patent Document 1, an enclosure is provided to prevent the contents from falling, while in Patent Document 2, a device is used to prevent the contents from being damaged by collision. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-32953 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-252789 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in Patent Document 1, when a container containing flammable liquid is transported, there is a risk of the container being damaged by a collision or there is no way to deal with the situation if the container is tilted due to an erroneous operation by the transporter, causing a leak.In Patent Document 2, when handling flammable liquid, there is no way to adequately deal with the situation if the flammable liquid leaks into the storage section.

[0006] Therefore, the present invention aims to provide a storage device that can prevent damage to containers containing flammable liquid within the internal space when transporting the container, and that can prevent leaked flammable liquid from leaking to the outside even if the container is damaged. [Means for solving the problem]

[0007] The storage device of the present invention is a storage device for transporting containers containing flammable liquids, and comprises a main body that stores the container and has an opening that opens upward at the top end, a lid that covers the opening of the main body, a sealing member that is placed between the lid and the edge around the opening of the main body when the lid covers the opening, and a lock that fixes the lid in a pressed state against the main body, and the internal space is sealed when the lid is in close contact with the main body via the sealing member.

[0008] In this storage device, the main body stores a container and has an opening at the top that opens upward. Therefore, when transporting a container containing a flammable liquid, the container is placed into the main body through the opening. By surrounding the container with the main body, impacts to the container are reduced, and leakage of the flammable liquid due to damage to the container can be prevented. Furthermore, in the storage device, after the container is stored, the opening of the main body is covered with a lid, and the lid is fixed in a pressed state against the main body with a lock. At this time, a sealing member disposed between the lid and the edge around the opening of the main body is compressed between the lid and the main body. As a result, the lid is tightly attached to the main body via the sealing member, sealing the internal space. Therefore, even if flammable liquid leaks into the internal space of the storage device, the flammable liquid can be contained within the internal space. As described above, damage to the container in the internal space during transportation of a flammable liquid-filled container can be prevented, and even if the container is damaged, volatilized flammable liquid can be prevented from leaking to the outside.

[0009] The storage device has a rectangular shape when viewed from above, and a plurality of locking locks may be provided on opposing sides of the storage device. In this case, a pressing force can be applied to the sealing member in a balanced manner around the entire periphery of the opening, thereby improving the sealing performance of the internal space.

[0010] The storage device may further include a plurality of wheels attached to the bottom of the main body, in which case the wheels allow the worker to carry the storage device in a stable position.

[0011] The storage device may further include a handle portion joined to the main body portion and capable of being held and pushed by an operator, so that the operator can easily transport the storage device by pushing the handle portion.

[0012] The storage device may further include a relief valve attached to the lid for releasing pressure in the internal space. In this case, even if flammable liquid leaks from the internal space and gas is generated, the relief valve can be used to release the pressure before the lid is opened. This makes it possible to prevent a pressure increase in the internal space.

[0013] The opening area of ​​the release valve is 0.025 mm 2 Over 1,000mm 2 In this case, the release valve allows the gas generated in the internal space to escape with appropriate release characteristics.

[0014] The base area of ​​the internal space of the main body is 0.5m 2 In this case, even if a flammable liquid leaks from the internal space, the gas is less likely to volatilize by reducing the bottom area. [Effects of the Invention]

[0015] According to the present invention, a storage device can be provided that can prevent damage to containers containing flammable liquid within the internal space when transporting the container, and can also prevent leaked flammable liquid from leaking to the outside even if the container is damaged. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a side view showing a storage device according to an embodiment of the present invention. FIG. [Figure 2] FIG. [Figure 3]FIG. 10 is a side view of the storage device from another direction. [Figure 4] FIG. 3 is a cross-sectional view showing the structure around the sealing member. [Figure 5] FIG. 10 is a cross-sectional view showing a sealing member according to a modified example. [Figure 6] 1 is a table showing the calculation results of the safe base area of ​​the main body for each flammable liquid. [Figure 7] 1 is a graph showing the relationship between discharge characteristics (m3 / s) and ventilation velocity (m / s). DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description, the same elements or elements having the same functions will be denoted by the same reference numerals, and redundant description will be omitted.

[0018] Fig. 1 is a side view showing a storage device 1 according to an embodiment of the present invention. Fig. 2 is a plan view of the storage device 1. Fig. 3 is a side view of the storage device 1 from another direction. The storage device 1 carries containers 10 containing flammable liquid.

[0019] As used herein, flammable liquid refers to any organic liquid that ignites in air. However, the storage device 1 of this embodiment is particularly effective when using flammable liquids classified as Class 4 hazardous materials. These flammable liquids are highly volatile and prone to accidents, making it effective to store them in the storage device 1 of this embodiment. Specific examples of flammable liquids include special flammables such as pentane, diethyl ether, and carbon disulfide; first petroleum products such as acetone and gasoline; alcohols such as saturated monohydric alcohols with 1 to 3 carbon atoms (including denatured alcohol); second petroleum products such as kerosene and diesel; third petroleum products such as heavy oil and creosote oil; and fourth petroleum products such as gear oil and cylinder oil. This method is particularly effective when used with flammable liquids with a flash point below 40°C.

[0020] In this embodiment, any container for handling flammable liquids can be used as the flammable liquid container 10. Generally, metal containers are used as the container 10, but depending on the type of flammable liquid, such as organic acids, glass or plastic may be used due to their corrosive properties. However, an inert buffer material may be used as needed to prevent breakage. Containers such as one-gallon cans and pails may be used as the container 10.

[0021] As shown in FIGS. 1 to 3, storage device 1 includes a main body 2, a lid 3, a sealing member 4, a plurality of locks 6, wheels 7, a handle 8, and an open valve 9.

[0022] The combination of the main body 2 and the lid 3 forms a roughly rectangular parallelepiped shape. Here, roughly rectangular parallelepiped means shapes with rounded vertices for safety, as well as shapes that are composed of mostly straight lines. It is preferable that the storage device 1 has a low center of gravity so that it can be transported safely. For example, the height from the wheels 7 of the storage device 1 to the top end of the storage device 1 may be smaller than either the longitudinal dimension or the lateral dimension. The main body 2 and the lid 3 may be made of a non-combustible material such as iron, aluminum, or stainless steel, with stainless steel being preferred.

[0023] The main body 2 is a box-shaped body that houses the container 10 and has an opening 11 that opens upward at its upper end. The opening 11 is a portion for inserting and removing the container 10 from inside the main body 2. The main body 2 includes a bottom wall 2a, a pair of opposing side walls 2b and 2c, and a pair of opposing end walls 2d and 2e. The bottom wall 2a extends horizontally. The walls 2b, 2c, 2d, and 2e rise vertically upward from the four edges of the bottom wall 2a. The direction in which the side walls 2b and 2c face each other is perpendicular to the direction in which the end walls 2d and 2e face each other. The side walls 2b and 2c correspond to the long side walls. The four edges of the bottom wall 2a and the ends of the walls 2b, 2c, 2d, and 2e are joined to each other. Both ends of the side wall 2b are joined to the ends of the end walls 2d and 2e. Both ends of the side wall 2c are joined to the ends of the end walls 2d and 2e. The joints are joined by welding or the like to ensure airtightness. The area surrounded by the upper ends of the walls 2b, 2c, 2d, and 2e forms an opening 11 (see FIG. 4).

[0024] The lid 3 is a member that covers the opening 11 of the main body 2. The lid 3 includes a rectangular plate-shaped top wall 3a that covers the opening 11, a pair of opposing side walls 3b and 3c, and a pair of opposing end walls 3d and 3e. The top wall 3a expands horizontally when sealed. Each of the walls 3b, 3c, 3d, and 3e extends vertically downward from the four edges of the top wall 3a. The side walls 3b and 3c are positioned opposite the side walls 2b and 2c. The end walls 3d and 3e are positioned opposite the end walls 2d and 2e. Each of the walls 3b, 3c, 3d, and 3e is set to a length sufficient to cover the upper end of the main body 2 when sealed. The four edges of the top wall 3a and the ends of each of the walls 3b, 3c, 3d, and 3e are joined to each other. Both ends of the side wall 3b are joined to the ends of the end walls 3d and 3e. Both ends of the side wall 3c are joined to the ends of the end walls 3d and 3e. The joints are joined by welding or the like in a state where airtightness is ensured.

[0025] FIG. 4 is a cross-sectional view showing the structure around the sealing member 4. As shown in FIG. 4, when the lid 3 covers the opening 11, the sealing member 4 is disposed between the lid 3 and the edge 2f of the main body 2 around the opening 11. The edge 2f extends from the upper ends of the walls 2b, 2c, 2d, and 2e toward the outer periphery. The edge 2f is parallel to the bottom wall 2a. By providing the edge 2f on the outer periphery rather than the inner periphery, the edge 2f is prevented from interfering with the insertion and removal of the container 10. The edge 2f of the bottom wall 2 is formed around the entire periphery of the opening 11. The walls 3b, 3c, 3d, and 3e of the lid 3 are disposed closer to the outer periphery than the tips of the edge 2f. The sealing member 4 is fixed to the upper surface of the edge 2f. The sealing member 4 is disposed around the entire periphery of the opening 11.

[0026] In the example shown in FIG. 4, the sealing member 4 has a V-shaped cross section before sealing (see FIG. 4(a)). The pair of pieces 4a, 4b are compressed during sealing to ensure airtightness of the internal space SP. The connecting portion between the pieces 4a, 4b is located on the outer periphery of the edge 2f, but it may also be located on the inner periphery. The lower piece 4b is fixed to the edge 2f. However, the upper piece 4a may also be fixed to the lid 3. The material of the sealing member 4 is not particularly limited, and a packing made of a material that is not corroded by flammable liquids, preferably a fluororubber packing such as Viton, may be used. The cross-sectional shape of the sealing member 4 is not particularly limited. As shown in FIG. 5(a), the sealing member 4 may have a cylindrical portion 4d at one end of the piece 4c. Furthermore, as shown in FIG. 5(b), the sealing member 4 may have a dome-shaped tubular portion 4f connected to one end of the piece 4e and disposed on the piece 4e.

[0027] 1 to 3, the multiple locks 6 are means for fixing the lid portion 3 in a pressed state against the main body portion 2. The storage device 1 has a rectangular shape when viewed from above. Multiple locks 6 are provided on each of the opposing side surfaces of the storage device 1. Here, two locks 6 are provided on each of the side walls 2b, 3b and 2c, 3c, which correspond to the long side surfaces. The pair of locks 6 on the side walls 2b, 3b and the pair of locks 6 on the side walls 2c, 3c are positioned at the same position in the longitudinal direction of the storage device 1. This allows the lid portion 3 to be pressed against the main body portion 2 in a balanced manner around the entire circumference of the sealing member 4.

[0028] The type of lock 6 is not particularly limited, but may be a toggle mechanism that uses a tensional force to connect the lid portion 3 and the main body portion 2 to attract each other and seal them. For example, a fastener (a snap lock or a snap lock) may be used as the lock 6. In the example shown in FIG. 3, the lock 6 has a handle portion 6a on the main body portion 2 side that is interlocked with the engaging portion 6b, and a hook portion 6c on the lid portion 3 side. When the handle portion 6a is pushed up to release the lock, the engaging portion 6b hooks onto the hook portion 6c. When the handle portion 6a is pushed down in this state, the engaging portion 6b presses the lid portion 3 against the main body portion 2 via the hook portion 6c. At this time, the sealing member 4 is crushed (see FIG. 4(b)), thereby sealing the internal space SP. The lock 6 is fixed to the main body portion 2 and the lid portion 3 by welding or the like. This allows the locks 6 to be attached while ensuring airtightness, without the need to create holes in the main body 2 and lid 3, as is the case with screws. While a mechanism for sealing may be employed in which a hinge is provided on one side and the remaining parts are keyed, it is preferable to provide locks 6 on at least two opposing side surfaces, as described above, in order to prevent leakage of flammable liquid. For example, to prevent the lid 3 from coming off due to the impact of a fall and causing leakage of flammable liquid, the tensile load of each lock 6 may be set to 200 kg, and four locks 6 may be provided, for a total tensile load of 800 kg.

[0029] The wheels 7 are attached to the bottom of the main body 2. In this embodiment, a total of four wheels 7 are provided near the four corners of the bottom of the main body 2, but the number and arrangement are not particularly limited. The wheels 7 are rotatably supported by support members 7a. The support members 7a are fixed to the underside of the bottom wall 2a of the main body 2 by welding or other means. This allows the wheels 7 to be attached in a sealed state without creating holes in the main body 2, as is the case with screws. For safety, the wheels 7 are preferably electrostatically treated. For example, the wheels 7 may be made of flame-retardant rubber such as silicone rubber that has been made conductive to eliminate certain vibrations. For convenience of transportation, the wheels 7 may be rotatable. At least one of the wheels 7 may be equipped with a brake mechanism. For safety, a movable mounting member may be provided on the bottom to assist in stopping, as shown in Utility Model Registration No. 3225019.

[0030] The handle portion 8 is joined to the main body portion 2 and is a member that can be held and pushed by an operator. In this embodiment, the handle portion 8 is joined to the end wall portion 2e of the main body portion 2. The handle portion 8 has a pair of pillar portions 8a, 8a that extend upward and are horizontally spaced apart from each other, and a connecting portion 8b that connects the upper ends of the pillar portions 8a, 8a (see FIG. 3 in particular). The pillar portions 8a, 8a of the handle portion 8 are fixed to the end wall portion 2e of the main body portion 2 by welding or the like. This allows the handle portion 8 to be attached in a sealed state without having to create holes in the main body portion 2, as is the case with screws.

[0031] The release valve 9 is provided in the lid portion 3 and is a valve that releases the pressure in the internal space SP. The release valve 9 is a valve that releases pressure by releasing gas from the internal space SP when the pressure in the internal space SP becomes higher than a predetermined pressure. The specific configuration of the release valve 9 is not particularly limited, but for example, the one described in Published Utility Model No. 56-91257 may be adopted. The release valve 9 can adjust the area of ​​the opening (opening area) through which gas can escape to the outside by adjusting the screw. The opening area of ​​the release valve is not particularly limited, but is preferably 0.025 mm 2Over 1,000mm 2 Less than 10 mm, preferably 2 Less than 0.7mm, preferably 0.7mm 2 Less than or equal to 0.25 mm, even more preferably 2 In this embodiment, the release valve 9 is provided in the upper wall 3a of the lid 3, near the end wall 2e that is close to the handle 8, and in the vicinity of one of the side walls 3c. However, the position of the release valve 9 in the lid 3 is not particularly limited. Note that a reinforcing structure (for example, increasing the thickness of the upper wall 3a or welding a nut) may be employed to prevent the release valve 9 from coming off due to the impact of a fall. A handle 12 may be provided on the upper wall 3a of the lid 3 (see FIG. 1).

[0032] The area of ​​the bottom surface BS (see Figure 1) of the internal space SP of the main body 2 is 0.5 m 2 Less than or equal to 0.35m, preferably 2 Less than or equal to 0.24m, preferably 2 Less than or equal to 0.14m, even more preferably 2 or less. Even if flammable liquid leaks within the internal space SP of the main body 2, by keeping the bottom area of ​​the main body 2 small, evaporation of the leaked flammable liquid can be suppressed, and safety can be improved when the lid 3 is opened. Calculations were carried out for each flammable liquid using the following formula (1) shown on page 20 of the "Guidelines for Precise Setting Methods for Dangerous Areas in Plants (April 2019, Ministry of Economy, Trade and Industry)" attached to "Fire Danger No. 84 (April 24, 2019) Regarding Operations in Places Where Flammable Vapors May Remain in Hazardous Materials Facilities." The calculation results are shown in Figure 6. The release rate We (kg / sec) is expressed by formula (1). A specific example of safety evaluation of the bottom area Ap of the storage device 1 will be explained. Using the above formula (1), the "release characteristics (m 3Safety can be evaluated using a graph showing the relationship between "air temperature (m / sec)" and "ventilation rate (m / sec)". The ventilation rate indicates the ventilation rate of the corridor or room where the storage equipment 1 is located. The release characteristics indicate the amount of gas that escapes from the release valve 9 of the storage equipment 1. Graphs G1 and G2 can be used to classify areas into "high ventilation", "medium ventilation" and "low ventilation". High ventilation areas have a low risk of ignition, and can be judged as an area where safe release of gas from the storage equipment 1 is possible. The ventilation rate u of the transport corridor w (m / sec) is set to the minimum level of 0.05m / sec, and the discharge characteristic We, which is the boundary between high ventilation and medium ventilation (G1 line), is 0.0035m 3 / sec as the base area Ap (m 2 ) can be calculated as shown in Figure 6. 2 " can be considered as the base area related to the upper limit of the safety level. "P1" in Figure 7 indicates the area of ​​the bottom surface BS when pentane 25°C (about 4 liters) leaks over the entire surface of the bottom surface BS. 2 Then, "P2" has an area of ​​0.22m 2 This shows the release characteristics when the base area is smaller, indicating that "P2" has a lower risk of ignition.

[0033]

number

[0034] The gap between the screw of the release valve 9 and the lid 3 is set to 0.1 mm to 0.2 mm. At 0.2 mm, the orifice area S1 = 0.1 mm × 8 mmφ circumference (mm) = 5 mm 2The definition of the opening area S of this invention is calculated by applying "3.1 Recommended value of opening area for second-class release source" on page 12 in accordance with the "Guidelines for precise setting methods of danger zones in plants (January 2020, Ministry of Economy, Trade and Industry)". The opening area S is calculated as 10% of the orifice area S1, and if the orifice area S1 is 5 mm 2 When this happens, the opening area S is 0.5 mm 2 The screw is 1mm in length to prevent the internal pressure of the storage area from increasing. 2 A slit of about 1 / 4" may be provided in the longitudinal direction of the screw.

[0035] The safety assessment described above is merely a calculation and assumes unlikely events (e.g., the container breaks due to impact or the flammable components become loose). Therefore, when transporting flammable liquids using storage device 1, the following procedure may be used. For example, if storage device 1 falls over and there is a possibility of leakage, the storage device 1 should be moved to an explosion-proof room (oil sink) or a cool, well-ventilated outdoor location with no ignition source. At the destination, the storage device 1 should be grounded, a fire extinguisher should be prepared, workers should wear protective gear, and the storage device should be left to rest for a relaxation time (5 minutes) to eliminate static electricity. After that, the release valve 9 should be gradually opened to reduce pressure, and the lid 3 should be gently opened to dispose of any leaking hazardous materials in the internal space SP. Note that if the flammable liquid is highly volatile, such as a special flammable material or gasoline, it may be transported with ice packs placed inside to prevent evaporation at temperatures below 20°C.

[0036] The container 10 containing the flammable liquid may be held in the internal space SP of the storage device 1. Any holding means may be used, such as a threshold plate within the internal space SP. Further protection may be provided by cushioning or other materials. It is important that the flammable liquid container does not shift or tip over when the storage device 1 is tilted so that the surface with the largest cross-section is horizontal. To achieve this, a threshold plate with a height of approximately 1 cm to 5 cm is sufficient for a typical container 10, depending on the shape and size of the container 10. In other words, by providing a means for holding the container 10 on the bottom surface BS (see FIG. 1) of the main body 2, the flammable liquid container 10 can be prevented from shifting or tipping over even if the storage device 1 is tipped sideways.

[0037] Next, the functions and effects of the storage tool 1 according to this embodiment will be described.

[0038] In this storage device 1, the main body 2 stores the container 10 and has an opening 11 at its upper end that opens upward. Therefore, when transporting the container 10 containing a flammable liquid, the container 10 is placed into the main body 2 through the opening 11. By surrounding the container 10 with the main body 2, impacts to the container 10 are reduced, and leakage of the flammable liquid due to damage to the container 10 can be prevented. Furthermore, in the storage device 1, after storing the container, the opening 11 of the main body 2 is covered with the lid 3, and the lid 3 is fixed in a pressed state against the main body 2 with the lock 6. At this time, the sealing member 4 disposed between the lid 3 and the edge around the opening 11 of the main body 2 is compressed between the lid 3 and the main body 2. As a result, the lid 3 is tightly attached to the main body 2 via the sealing member 4, sealing the internal space SP. Therefore, even if flammable liquid leaks into the internal space SP of the storage device 1, the flammable liquid can be contained within the internal space SP. The space between the top of container 10 and lid 3 is made as small as possible, less than 10 cm, and preferably less than 5 cm. Even if the main body is tilted, lid 3 prevents tipping, so container 10 will not tip over inside main body 2. As described above, when transporting container 10 containing flammable liquid, damage to container 10 in internal space SP is suppressed, and even if container 10 is damaged, leaked flammable liquid can be prevented from leaking to the outside.

[0039] The storage device 1 has a rectangular shape when viewed from above, and a plurality of locks 6 may be provided on opposing side surfaces of the storage device 1. In this case, a pressing force can be applied to the sealing member 4 in a balanced manner around the entire periphery of the opening 11. This improves the airtightness of the internal space SP.

[0040] The storage device 1 may further include a plurality of wheels 7 joined to the bottom of the main body 2. In this case, the wheels 7 allow the worker to carry the storage device 1 in a stable position.

[0041] Storage tool 1 may further include a handle 8 that is joined to main body 2 and can be held and pushed by an operator. In this case, the operator can easily transport storage tool 1 by pushing handle 8.

[0042] The storage device 1 may further include a relief valve 9 provided in the lid 3 to release the pressure in the internal space SP. In this case, even if flammable liquid leaks from the internal space SP and gas is generated, the relief valve can suppress the pressure increase before the lid 3 is opened. This makes it possible to suppress the pressure in the internal space SP while reducing the risk of ignition.

[0043] The opening area S of the release valve 9 is 0.025 mm 2 Over 1,000mm 2 Less than 10 mm, preferably 2 Less than 0.7mm, preferably 0.7mm 2 Less than or equal to 0.25 mm, even more preferably 2 In this case, the release valve 9 can safely release the gas generated in the internal space SP without increasing the internal pressure of the storage device 1 and reducing the risk of ignition.

[0044] The base area of ​​the internal space SP of the main body 2 is 0.5 m 2 Less than or equal to 0.35m, preferably 2 Less than or equal to 0.20m, preferably 2 In this case, even if a flammable liquid leaks from the internal space SP, the gas can be made less likely to volatilize by reducing the bottom area.

[0045] The present invention is not limited to the above-described embodiments.

[0046] For example, in the above-described embodiment, the wheels are directly joined to the bottom of the main body, but instead, a base may be provided on the bottom of the main body, and the wheels may be provided on the base.

[0047] Some of the components of the storage device may be omitted, for example, the wheels, handle, and release valve may be omitted from the storage device.

[0048] [Form 1] A container for transporting flammable liquid containers, a main body that houses the container and has an opening at its upper end that opens upward; a lid portion that covers the opening of the main body portion; a sealing member disposed between the lid and an edge of the body around the opening when the lid covers the opening; a lock that fixes the lid portion in a pressed state against the main body portion, The storage device has an internal space sealed by the lid being in close contact with the main body via the sealing member. [Form 2] The storage device has a rectangular shape when viewed from above, The storage device according to embodiment 1, wherein a plurality of the locking locks are provided on each of the opposing side surfaces of the storage device. [Form 3] The storage device according to aspect 1 or 2, further comprising a plurality of wheels joined to the bottom of the main body. [Form 4] The storage tool according to any one of the first to third aspects, further comprising a handle joined to the main body that can be held and pushed by an operator. [Form 5] 5. The storage tool according to any one of embodiments 1 to 4, further comprising a relief valve provided in the lid portion for relieving pressure in the internal space. [Form 6] The opening area of ​​the release valve is 0.025 mm 2 Over 1,000mm 2 A storage device according to aspect 5, which is as follows: [Form 7] The bottom area of ​​the internal space of the main body is 0.5 m 2 A storage tool according to any one of the following embodiments 1 to 6. [Explanation of symbols]

[0049] 1...storage device, 2...outside of book, 3...lid portion, 4...sealing member, 6...lock, 7...wheel, 8...handle portion, 9...release valve, 10...container, 11...opening.

Claims

1. A container for transporting flammable liquid containers, a main body that houses the container and has an opening at its upper end that opens upward; a lid portion that covers the opening of the main body portion; a sealing member disposed between the lid and an edge of the body around the opening when the lid covers the opening; a lock that fixes the lid portion in a pressed state against the main body portion, The storage device has an internal space sealed by the lid being in close contact with the main body via the sealing member.

2. The storage device has a rectangular shape when viewed from above, The storage device according to claim 1 , wherein a plurality of the locking locks are provided on opposing side surfaces of the storage device.

3. The storage device of claim 1 further comprising a plurality of wheels joined to the bottom of the body.

4. The storage device according to claim 1 , further comprising a handle portion joined to the main body portion that can be held and pushed by an operator.

5. The storage device according to claim 1 , further comprising a relief valve provided in the lid portion for relieving pressure in the internal space.

6. The opening area of ​​the release valve is 0.025 mm ２ Over 1,000 mm ２ 6. The storage device according to claim 5, wherein:

7. The bottom area of ​​the internal space of the main body is 0.5 m ２ 2. The storage device according to claim 1, wherein:

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