JP2005069374A - Pressure resistant housing container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure resistant housing container facilitated in sealing structure and improved in operability thereof. <P>SOLUTION: On a bogie 11, a cylindrical pressure resistant housing container main body 17 with a bottom for housing a material to be housed is supported. In an opening end of the pressure resistant housing container main body 17, a cover body 21 is supported by a hinge mechanism 23 freely to turn in the opening direction of the pressure resistant housing container main body 17. In the peripheral surface of a main body side flange 32 of the pressure resistant housing container main body 17 and the peripheral surface of a cover body side flange 33 of the cover body 21, a connecting ring 40 to be rotated in the circumferential direction by a rotary mechanism 49 is arranged, and the inner peripheral surface thereof is provided with an engaging projection extended in the circumferential direction. In the peripheral surface of the pressure resistant housing container main body 17 and the opening end of the cover body 21, a first engaging projection and a second engaging projection are provided to be engaged with the described engaging projection to regulate opening of the cover body 21. Furthermore, an annular housing groove is provided in the peripheral surface of the opening end of the pressure resistant housing container main body 17, and a seal ring 35 is housed in the annular housing groove. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pressure-resistant container used for temporarily storing suspicious objects such as explosives, bacteria, and toxic gas generators.

  In recent years, there are cases where suspicious objects such as explosives are placed at airports, stations, etc., or suspicious objects are brought into a post office. In such a case, the following storage containers are known for temporarily storing suspicious objects. That is, the pressure-resistant container body having a bottomed cylindrical shape is supported horizontally on a cart that can be moved by four wheels. A lid plate is supported at the opening of the container body so as to be openable and closable in a direction perpendicular to the axis of the container body. The opening end surface of the container main body is provided with a sealing mechanism having a sealing member for sealing with nitrogen gas pressure so that the opening between the container main body and the lid plate is sealed. In order to apply this nitrogen gas pressure, a nitrogen gas container, a pipe for supplying nitrogen from the nitrogen gas container, a pressurization valve provided in the pipe, a pressure adjusting device, an exhaust valve, etc. are provided (for example, , See Non-Patent Document 1).

And after opening a cover plate and accommodating a suspicious object in a container main body, a cover plate is rotated and closed, a lever is operated and a cover plate is locked to a container main body. Next, the nitrogen gas pressurization valve is opened to pressurize the sealing mechanism with the nitrogen gas pressure, and the pressure of the nitrogen gas is set to a predetermined pressure by the pressure adjusting device. Thereby, the seal | sticker between a container main body and a cover board is given.
Explosive container (PCV1) manual (pages 5-14) made by DYNASAFE

  However, in the prior art described above, the sealing mechanism is constituted by many parts such as a nitrogen gas container, piping, a pressurizing valve, a pressure adjusting device, an exhaust valve and the like, and requires a complicated structure. Then, after storing the suspicious object in the container main body and locking the cover plate to the container main body, the nitrogen gas pressurization valve is opened, and the pressure of the nitrogen gas is set to a predetermined pressure by the pressure adjusting device. The lid plate had to be sealed. For this reason, after applying a certain nitrogen gas pressure, there is a problem that the operation of adjusting the pressure to a predetermined pressure is very troublesome.

  The present invention has been made paying attention to such problems existing in the prior art. The object is to provide a pressure-resistant container that can simplify the seal structure and improve the operability thereof.

  In order to solve the above-mentioned problem, the pressure-resistant container according to the first aspect of the present invention is a pressure-resistant container body that is supported on a carriage and has a bottomed cylindrical shape for accommodating the contents, and the pressure-resistant container. A lid that covers and seals the opening of the container body, and the lid is rotated in the opening direction of the pressure-resistant container body by a hinge mechanism, and on the outer peripheral surface of the pressure-resistant container body or the opening end of the lid. Has a connecting ring that is rotated in the circumferential direction by a rotating mechanism, and an inner peripheral surface of the connecting ring is provided with a concavo-convex portion extending in the circumferential direction, and is provided on the outer peripheral surface of the pressure-resistant container body or the lid end. Is provided with a regulating irregularity part that engages with the irregularity part to regulate the opening of the lid, and an accommodation groove is provided on the outer peripheral surface of the opening end of the pressure-resistant container body or the inner peripheral surface of the opening end of the lid. A seal ring is housed in the groove to seal between the pressure-resistant container body and the lid. It is characterized in that it has configured.

  A pressure-resistant container according to a second aspect of the present invention is the pressure-resistant container body according to the first aspect, wherein the seal ring accommodated in the accommodating groove has a pressure-resistant container main body whose pressure is caused by an explosion of explosives that are contained. The holding groove and the pressure-resistant container body or the pressure-resistant container body so that the sealing function can be maintained by contacting the inner peripheral surface of the opening end part of the lid or the outer peripheral surface of the pressure-resistant container body even when moving in a direction away from The distance from the opening end of the lid is set.

  A pressure-resistant container according to a third aspect of the present invention is the pressure-resistant container according to the first or second aspect, wherein a gas vent hole is provided in the pressure-resistant container body, and a gas exhaust pipe is provided in the gas vent hole. The gas discharge pipe is provided with an opening / closing valve for opening / closing the gas flowing through the gas exhaust pipe, and the opening / closing operation of the opening / closing valve is performed by operating a lever. The lever is attached to the outer peripheral surface of the connecting ring. It is configured to be engaged with the provided engaging portion to restrict the rotation of the connecting ring.

According to the pressure-resistant container of the first aspect of the invention, the seal structure can be simplified and the operability can be improved.
According to the pressure-resistant container of the invention described in claim 2, in addition to the effect of the invention described in claim 1, it is possible to maintain a seal between the pressure-resistant container and the lid even when the stored material explodes. it can.

  According to the pressure-resistant container of the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the opening / closing operation of the on-off valve that circulates or shuts off the gas can be performed by operating the lever. At the same time, the rotation of the connecting ring can be restricted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 3, the carriage 11 is formed by laying a substrate 13 having a flat rectangular shape on a frame member 12, and is configured to be movable by casters 14 provided at four corners. At the rear end of the carriage 11, a handle 15 for pushing is erected in a gate shape, and the carriage 11 can be moved by placing a hand on the handle 15. A pair of front and rear holding bodies 16 are provided on the substrate 13 of the carriage 11, and a pressure-resistant container body 17 having a bottomed cylindrical shape is held on the holding body 16 with the opening portion facing forward. In the pressure-resistant container main body 17, a punching metal net cage 18 that accommodates an object such as a suspicious object is supported.

  A flat U-shaped slide frame 19 is disposed on the carriage 11 in front of the pressure-resistant container main body 17, and a pair of support columns 20 are erected on both sides of the slide frame 19. On the slide frame 19, a hemispherical lid body 21 that seals the opening of the pressure-resistant container body 17 is provided by a back-and-forth movement mechanism 22 provided on the slide frame 19 and a hinge mechanism 23 provided on one column 20. It is supported so as to be able to rotate about the back and forth movement and the column 20. The pressure-resistant container main body 17 and the lid body 21 are made of high-strength steel and have sufficient strength as a pressure-resistant container.

  That is, the rotary shaft 25 is rotatably supported by a pair of left and right bearings 24 provided on the carriage 11, and pinion gears 26 are attached to both ends of the rotary shaft 25. On the other hand, racks 27 are attached to the lower surfaces of the left and right slide frames 19 and mesh with the pinion gears 26, respectively. A lower end of an operating lever 28 that extends upward is attached and fixed to the rotary shaft 25, and the slide frame 19 is moved back and forth via the pinion gear 26 and the rack 27 by the turning operation of the operating lever 28. The slide frame 19, the bearing 24, the rotating shaft 25, the pinion gear 26, the rack 27, the operation lever 28, etc. constitute a longitudinal movement mechanism 22. The hinge mechanism 23 includes a receiving cylinder 29 provided on the support column 20, a support shaft 31 provided on a support column 30 at one end of an opening / closing frame 50, which will be described later, of the lid 21, and the like supported rotatably on the receiving cylinder 29. It consists of and. Then, the lid body 21 is rotated about the opening direction of the pressure-resistant container body 17, that is, one strut 20.

  A main body side flange 32 protrudes from the outer peripheral surface of the open end of the pressure-resistant container body 17, and a cover side flange 33 protrudes from the outer peripheral surface of the open end of the lid 21, so that the cover 21 is pressure-resistant. The container body 17 is closed, and the outer surface of the lid side flange 33 is in contact with the outer surface of the body side flange 32 so that the inside of the pressure-resistant container is sealed. As shown in FIGS. 4C and 4D, a seal ring 35 made of nitrile rubber is provided in an annular receiving groove 34 provided on the outer peripheral surface on the opening end side of the main body side flange 32 of the pressure resistant container main body 17. It is fitted and a sealed state is maintained between the inner peripheral surface of the opening end portion of the lid 21. A back-up ring 36 made of fluororesin is accommodated on the main body side flange 32 side of the annular accommodating groove 34, and the seal ring 35 is held in the annular accommodating groove 34. A chamfered portion 37 is formed in the inner edge of the opening end of the lid 21 so that the opening end of the lid 21 can be easily inserted into the opening end of the pressure-resistant container body 17. Yes. The chamfered portion 37 is formed in two steps so that the inclination angle is different.

  Here, even when the explosive material as the containment in the pressure resistant container explodes and the lid 21 moves away from the pressure resistant container body 17, the explosive is fitted in the annular accommodating groove 34 of the pressure resistant container body 17. The seal ring 35 is in contact with the inner peripheral surface of the opening end of the lid body 21 so that the sealed state in the pressure-resistant container can be maintained. That is, in this embodiment, the distance D between the outer surface of the main body side flange 32 and the annular housing groove 34 is 10 mm, the thickness d of the backup ring 36 is 2.75 mm, and the total is 12.75 mm. The depth L of the chamfered portion 37 at the inner edge is 8 mm, and the difference between 12.75 mm and 8 mm is set to 4.75 mm. Therefore, it is set so that the sealed state can be maintained even if the lid 21 moves 4.75 mm from the pressure-resistant container main body 17. The pressure-resistant performance of the pressure-resistant container according to the present embodiment is such that the explosive power of explosion is designed to be 250 g or less with TNT (trinitrotoluene) explosive, and the movement of the lid 21 is within 4.75 mm as long as this pressure-resistant performance is satisfied. It can be stored.

  As shown in FIGS. 4 (a) and 4 (b), on the outer peripheral portion of the main body side flange 32, the first engaging protrusions 38 of a certain length constituting the restricting concavo-convex portion extend over the entire circumference at regular intervals. Multiple protrusions are provided. As shown in FIGS. 5 (a) and 5 (b), a second engagement protrusion 39 having a certain length is provided on the outer peripheral portion of the lid side flange 33 so as to correspond to the first engagement protrusion 38, respectively. A plurality of protrusions are provided over the entire circumference. As shown in FIGS. 3 and 6A and 6B, the connecting ring 40 having a substantially cylindrical shape is disposed so as to cover the main body side flange 32 and the lid side flange 33. On the inner peripheral surface of the connecting ring 40, an engagement protrusion 41 is formed inwardly that constitutes an uneven portion having the same size and arrangement as the first engagement protrusion 38 and the second engagement protrusion 39. Has been. A chain 42 is fixed to the outer peripheral surface of the connecting ring 40 with a certain length, and a quick handle 44 is supported on a support member 43 fixed to the lid 21, and is attached to the tip of the rotating shaft 45. The sprocket 46 is fixed.

  As shown in FIG. 7, a plurality of female screw holes 47 extending in the radial direction at regular intervals in the circumferential direction are screwed on the outer surface of the lid body 21 in the vicinity of the lid-side flange 33, and positioning is performed in these female screw holes 47. The external male screw 48 is screwed, the connecting ring 40 is supported on the lid body 21 side, and moves together with the lid body 21 when the lid body 21 is opened. The connecting ring 40, the chain 42, the quick handle 44, the sprocket 46, and the like constitute a rotating mechanism 49. Then, the sprocket 46 is engaged with the chain 42 and the quick handle 44 is rotated clockwise or counterclockwise in FIG. 3 to rotate the connecting ring 40 in the circumferential direction of the pressure-resistant container body 17. The joint protrusion 41 is engaged with and disengaged from the first engagement protrusion 38 and the second engagement protrusion 39 so that the lid 21 cannot be opened and closed with respect to the pressure-resistant container main body 17.

  As shown in FIGS. 2 and 3, an opening / closing frame 50 is attached to the center of the outer surface of the lid body 21 so as to extend laterally along the lid body 21, and a handle 51 having a U-shape is formed on the outer surface thereof. Is provided. An insertion hole 52 is formed in the other end of the opening / closing frame 50 in the vertical direction, and an insertion hole 53 is provided in the support column 20, and a lock pin (not shown) is inserted in the insertion hole 52 with the lid 21 closed. And inserted into the insertion hole 53. A leg member 54 is attached to the lower outer surface of the lid body 21, and a ball caster 55 is provided on the bottom surface thereof, and the ball 55 a rolls on the substrate 13 of the carriage 11, thereby smoothly opening and closing the lid body 21. Yes.

  As shown in FIG. 7, a small gas vent hole 56 is provided in the upper portion of the peripheral wall of the pressure-resistant container main body 17, and a gas exhaust pipe 57 is connected to the gas vent hole 56, and the gas exhaust pipe 57 is opened and closed. A valve 58 is connected. The opening / closing valve 58 is provided with an opening / closing lever 59, and the opening / closing valve 58 is opened / closed by rotating the opening / closing lever 59. As shown in FIGS. 2 and 7, when the opening / closing lever 59 is in the position most inclined to the connection ring 40 side, the engagement groove 60 a as an engagement portion of the engagement plate 60 protruding from the connection ring 40. And the rotation of the connecting ring 40 in the circumferential direction is restricted. Further, the gas in the pressure-resistant container can be sampled from the gas discharge pipe 57 in the open state of the on-off valve 58 and analyzed.

Next, the operation of the pressure-resistant container configured as described above will be described.
Now, when accommodating the contents in the pressure-resistant container, as shown by the solid lines in FIGS. 1 and 2, the lid 21 is first closed and the lock pin is inserted into the opening / closing frame 50 through the insertion hole 52 of the support column 20. Confirm that it is in the state of being inserted into the insertion hole 53. In this state, the open / close lever 59 is rotated upward to release the engagement with the engagement groove 60a of the engagement plate 60, and the open / close valve 58 is opened. Thereafter, the quick handle 44 is rotated counterclockwise in FIG. 3, and the engagement protrusion 41 on the inner peripheral portion of the connecting ring 40, the first engagement protrusion 38 of the main body side flange 32, and the second engagement of the lid side flange 33. The engagement with the joint protrusion 39 is released.

  Next, the operation lever 28 is raised from the horizontal position indicated by the solid line in FIG. 1 to the vertical position indicated by the two-dot chain line. At this time, the pinion gear 26 is rotated via the rotating shaft 25, the rack 27 meshing with the pinion gear 26 moves forward, and the slide frame 19 and the lid body 21 move slightly forward accordingly. As shown by a two-dot chain line in FIG. 1, when the operation lever 28 extends in the 45 ° direction, the seal ring 35 fitted in the annular housing groove 34 is the inner peripheral surface of the opening end of the lid 21. Therefore, when the pressure-resistant container is not used, pressure is applied to the seal ring 35 and durability is prevented from being lowered.

  Next, the lock pin is extracted from the insertion hole 53 and the insertion hole 52, the handle 51 of the lid body 21 is gripped, and the lid body 21 is opened as shown by a two-dot chain line in FIG. Subsequently, after accommodating the contents in the center of the net cage 18 in the pressure-resistant container main body 17, the handle 51 of the lid 21 is pushed by hand to close the lid 21. Next, the lock pin is inserted into the insertion hole 53 of the support column 20 through the insertion hole 52 of the opening / closing frame 50 and the quick handle 44 is rotated clockwise in FIG. 3, and then the operation lever 28 is tilted to the horizontal position. Then, the quick handle 44 is rotated clockwise in FIG. 3, and the engagement protrusion 41 on the inner peripheral portion of the connecting ring 40 is moved to the first engagement protrusion 38 of the main body side flange 32 and the second engagement of the lid side flange 33. Engage with the protrusion 39. Finally, the opening / closing lever 59 is rotated forward to engage with the engagement groove 60a of the engagement plate 60, and the opening / closing valve 58 is closed, whereby the contents are stored in the pressure-resistant container.

  At this time, as shown in FIG. 4 (d), the seal ring 35 fitted in the annular housing groove 34 provided on the outer peripheral surface on the opening end side of the main body side flange 32 is the opening end portion of the lid 21. It is in close contact with the inner peripheral surface, and the sealed state in the pressure-resistant container is maintained. Further, the seal ring 35 is held in the annular housing groove 34 by the backup ring 36 so that the sealing performance of the seal ring 35 can be sufficiently exerted, and the seal ring 35 may come out of the annular housing groove 34 by opening and closing the lid 21. Can be prevented.

Therefore, according to the pressure-resistant container of the present embodiment, the following effects can be obtained.
-According to the pressure-resistant container of this embodiment, after accommodating a thing in the pressure-resistant container main body 17, the cover body 21 is closed, the cover ring 21 is rotated by rotating the connection ring 40 in the circumferential direction. It can be easily fixed to the pressure-resistant container body 17. Therefore, since it is not necessary to open the nitrogen gas pressurization valve and adjust the pressure of the nitrogen gas by the pressure adjusting device to seal the lid plate to the container body as in the conventional case, the operability can be improved. .

  The overlapping portion between the annular housing groove 34 of the pressure-resistant container body 17 and the inner peripheral surface of the opening end portion of the lid body 21 causes the lid body 21 to be separated from the pressure-resistant container body 17 by the pressure due to the explosion of the explosive which is the contained material. The space between the annular housing groove 34 and the peripheral surface of the opening end of the lid body 21 is set so as to exist even when moving in the direction of leaving. Specifically, the depth of the chamfered portion 37 of the inner end edge at the opening end of the lid 21 is calculated by adding the distance D between the outer surface of the main body side flange 32 and the annular receiving groove 34 and the thickness d of the backup ring 36. The length obtained by subtracting the length of L is set to 4.75 mm. For this reason, even if the contents are exploded and the lid 21 moves within a range of 4.75 mm from the pressure resistant container body 17, it is possible to prevent the sealing performance in the pressure resistant container from being impaired.

  A gas vent hole 56 is provided in the pressure-resistant container body 17 and a gas exhaust pipe 57 is connected thereto. The gas exhaust pipe 57 is provided with an open / close valve 58 for opening and closing the gas flow. The opening / closing operation is performed by operating the opening / closing lever 59. The opening / closing lever 59 is configured to be engaged with an engagement groove 60 a of an engagement plate 60 provided on the peripheral surface of the opening end portion of the lid body 21 to restrict the rotation of the lid body 21. Therefore, the opening / closing operation of the opening / closing valve 58 and the rotation restriction of the lid body 21 in the circumferential direction can be simultaneously performed by operating one opening / closing lever 59.

It should be noted that the above embodiment can be modified as follows.
An annular housing groove may be provided on the inner peripheral surface of the opening end of the lid body 21 and the seal ring may be housed in the annular housing groove.

  The support member 43, the rotation mechanism 49, the female screw hole 47 and the male screw 48 are provided on the outer peripheral surface of the open end portion of the pressure-resistant container body 17 to hold the connection ring 40 on the pressure-resistant container body 17, The mating protrusion 41 can be configured to engage with the second engaging protrusion 39 of the lid 21.

The net cage 18 in the pressure-resistant container main body 17 may be omitted, and the stored items may be directly stored in the pressure-resistant container main body 17.
The main body side flange 32 of the pressure-resistant container main body 17 and the cover body side flange 33 of the cover body 21 can be omitted. In that case, the first engaging protrusion 38 of the pressure-resistant container body 17 protrudes from the outer peripheral surface of the pressure-resistant container body 17, and the second engaging protrusion 39 of the lid body 21 protrudes from the outer peripheral surface of the lid body 21. Configure as follows.

  The pressure-resistant container of the embodiment is configured in combination with an X-ray apparatus that sees through the pressure-resistant container main body 17 or is combined with an analyzer that analyzes the gas sampled from the gas discharge pipe 57. You can also.

Next, the technical idea that can be grasped from the embodiment will be described below.
The pressure-resistant container according to claim 2, further comprising a back-and-forth movement mechanism for moving the lid back and forth with respect to the pressure-resistant container body on the carriage. When comprised in this way, the distance of an accommodation groove | channel and the pressure | voltage resistant container main body or the opening edge part of a cover body can fully be ensured.

  The pressure-resistant accommodation according to any one of claims 1 to 3, wherein a flange is provided on an outer peripheral surface of the opening end portion of the pressure-resistant container body and the lid, and a restriction uneven portion is provided on the flange. container. When comprised in this way, a connecting ring can be easily mounted on both flanges.

The side view which partially fractures and shows the pressure-resistant container fixed on the trolley | bogie. The top view which shows the pressure | voltage resistant container on a trolley | bogie. The front view which shows the pressure | voltage resistant container on a trolley | bogie. (A) is a front view of a pressure-resistant container body, (b) is a half sectional view of the pressure-resistant container body, (c) is an enlarged sectional view showing an open end of the pressure-resistant container body, and (d) is a lid. Sectional drawing which expands and shows the opening edge part of a body. (A) is a front view which shows a cover body, (b) is sectional drawing which shows a cover body. (A) is a sectional side view showing the connecting ring, (b) is a rear view showing the connecting ring. The cross-sectional view which shows a pressure | voltage resistant container.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Carriage, 17 ... Pressure-resistant container main body, 21 ... Cover body, 23 ... Hinge mechanism, 34 ... Annular accommodation groove as an accommodation groove, 35 ... Seal ring, 38 ... 1st engagement protrusion which comprises a regulation uneven | corrugated part , 40... Ring for connection, 41... Engagement protrusion constituting the concavo-convex portion, 49... Rotating mechanism, 56... Gas vent hole, 57. As an engaging groove.

Claims (3)

A pressure-resistant container body that is supported on a carriage and has a bottomed cylindrical shape for accommodating the contents, and a lid that covers and seals the opening of the pressure-resistant container body, and the lid is a hinge mechanism Is rotated in the opening direction of the pressure-resistant container body, and has a connecting ring that is rotated in the circumferential direction by a rotating mechanism on the outer peripheral surface of the opening end of the pressure-resistant container body or the lid. The inner peripheral surface is provided with a concavo-convex portion extending in the circumferential direction, and the pressure-resistant container body or the opening end outer peripheral surface of the lid body is provided with a regulation concavo-convex portion that engages with the concavo-convex portion and regulates the opening of the lid body, In addition, an accommodation groove is provided on the outer peripheral surface of the opening end of the pressure-resistant container body or the inner peripheral surface of the opening end of the lid, and a seal ring is accommodated in the housing groove so as to seal between the pressure-resistant container body and the lid. A pressure-resistant container characterized by comprising the above. The seal ring housed in the housing groove is the opening end inner peripheral surface of the lid body or the pressure housing container body even when the lid body moves in a direction away from the pressure housing body due to the explosion of the explosive which is the container. The distance between the housing groove and the opening end of the pressure-resistant container body or lid is set so that the sealing function can be maintained by contacting the outer peripheral surface of the opening end of the container. Pressure-resistant container. The pressure-resistant container main body is provided with a gas vent hole, and a gas exhaust pipe is connected to the gas vent hole, and the gas exhaust pipe is provided with an opening / closing valve for opening and closing the gas flowing through the inside. The opening / closing operation of the opening / closing valve is performed by operating a lever, and the lever is engaged with an engaging portion provided on the outer peripheral surface of the connecting ring to restrict the rotation of the connecting ring. The pressure-resistant container according to claim 1 or 2.

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