JP6156712B1 - Pressure resistant container - Google Patents

Abstract

The pressure-resistant structure container includes a cylindrical member, a lid member connected to the opening end of the cylindrical member and covering the opening of the cylindrical member, one end attached to the inner surface of the lid member, and the other end of the cylindrical member And a support member facing the inner peripheral surface. When the container receives an external pressure higher than the internal pressure, the external pressure acting on the lid member generates a moment around the connection between the open end of the tubular member and the lid member, and the moment is supported by the moment. The support member supports the inner peripheral surface of the cylindrical member on which the external pressure is applied by the force generated at the other end of the member.

Description

  The present disclosure relates to a pressure-resistant structural container that resists external pressure.

  For example, as described in Patent Document 1, a container (housing) having a pressure resistant structure that resists external pressure is known. This housing is a capsule of a submersible craft that can be boarded by a person, and has a pressure-resistant structure that resists water pressure.

JP-A-1-197197

  By the way, when the container is composed of a plurality of members, when the entire container receives an external pressure higher than the internal pressure, the specific member is greatly deformed compared to other members due to its shape, material, etc. There are things to do. The entire container may be damaged due to the large deformation of the specific member.

  Then, this indication makes it a subject to control breakage by external pressure about a container constituted from a plurality of members.

In order to solve the above technical problem, according to one aspect of the present disclosure,
A pressure-resistant structure container having a pressure-resistant structure,
A tubular member;
A lid member connected to the opening end of the tubular member and covering the opening of the tubular member;
One end is attached to the inner surface of the lid member, and the other end has a support member facing the inner peripheral surface of the tubular member,
When the pressure-resistant structural container receives an external pressure higher than the internal pressure, the external pressure acting on the lid member generates a moment around the connecting portion between the open end of the cylindrical member and the lid member, and the moment The support member supports the inner peripheral surface of the cylindrical member on which the external pressure acts with the force generated at the other end of the support member ,
The lid member includes a plurality of rib portions protruding from the inner surface thereof,
A ring member having an outer peripheral surface facing the inner peripheral surface of the tubular member is provided;
Each of the plurality of support members is provided with a pressure-resistant structure container in which one end is fixed to the rib portion and the other end is fixed to the ring member .

  According to the present disclosure, it is possible to suppress damage due to external pressure for a container formed of a plurality of members.

These aspects and features of the present invention will become apparent from the following description taken in conjunction with the preferred embodiments with reference to the accompanying drawings. In this drawing,
It is a perspective view of the container of the pressure | voltage resistant structure which concerns on one embodiment. It is a side view of the container of a pressure | voltage resistant structure. It is sectional drawing of the container of the pressure | voltage resistant structure along the AA line shown in FIG. It is sectional drawing of the container of the pressure | voltage resistant structure along the BB line shown in FIG. It is a perspective view of the container of the pressure | voltage resistant structure of the state which abbreviate | omitted the cylindrical member. It is sectional drawing of the container for demonstrating this pressure | voltage resistant structure.

  A pressure-resistant structure container according to one aspect of the present disclosure includes a tubular member, a lid member connected to the opening end of the tubular member to cover the opening of the tubular member, one end attached to the inner surface of the lid member, and the like. An opening end of the tubular member and the lid member by the external pressure acting on the lid member when the pressure-resistant structural container receives an external pressure higher than the internal pressure. A moment around the connecting portion between the two and the support member is generated in the support member, and the support member supports the inner peripheral surface of the cylindrical member to which an external pressure is applied by the force generated at the other end of the support member by the moment.

  According to such a configuration, damage due to external pressure can be suppressed for a container formed of a plurality of members.

  For example, the lid member includes a plurality of rib portions protruding from a portion of the inner surface thereof, a ring member including an outer peripheral surface facing the inner peripheral surface of the tubular member is provided, and each of the plurality of support members has one end thereof Is fixed to the rib portion, and the other end is fixed to the ring member. Accordingly, the support member can support the tubular member by using the rib portion that suppresses the deformation of the lid member, that is, in cooperation with the rib portion, and the deformation of the tubular member can be suppressed.

  For example, the lid member includes an outer surface composed of a partial spherical surface and a flat top surface, and a plurality of rib portions are provided on the inner surface portion on the back side of the partial spherical surface. Thereby, the pressure | voltage resistance with respect to the external pressure of a cover member can be improved.

  For example, the lid member includes a flange portion, and an annular groove that engages with the open end of the tubular member is provided in the flange portion. Thereby, the rigidity of the lid member is improved, that is, the pressure resistance against external pressure is improved. Further, since the cylindrical member and the lid member are connected at the flange portion, the connection between the cylindrical member and the lid member is maintained even when the container receives external pressure.

  For example, both ends of the cylindrical member are open ends, and a lid member is attached to each open end. The container includes a plurality of rods arranged along the outer peripheral surface of the cylindrical member, each having one end fixed to the flange portion of one lid member and the other end fixed to the flange portion of the other lid member. Have. The lid members attached to both ends of the tubular member are connected to each other by the plurality of rods, and the connection between each lid member and the tubular member can be maintained.

  For example, the cylindrical member is made from transparent glass or a transparent resin material, and the lid member is made from a metal material. The camera mounted in the container can take a good picture of the water through a cylindrical member whose deformation due to water pressure is suppressed by the support member without getting wet.

  Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.

  In addition, the inventors provide the accompanying drawings and the following description in order for those skilled in the art to fully understand the present disclosure, and these are intended to limit the subject matter described in the claims. It is not a thing.

  FIG. 1 is a perspective view of a container having a pressure-resistant structure according to an embodiment. 2 is a side view of the container, FIG. 3 is a cross-sectional view of the container along the line AA shown in FIG. 2, and FIG. 4 is a cross-sectional view along the line BB shown in FIG. is there.

  As shown in FIGS. 1 and 4, the container 10 includes a tubular member 12 and lid members 14 and 16 attached to both ends of the tubular member 12.

  In the case of the present embodiment, as shown in FIG. 4, the cylindrical member 12 has a cylindrical shape having openings (opening ends 12a) at both ends in the direction of the central axis C. For example, transparent glass, transparent resin material, or the like It is made from.

  In the case of the present embodiment, as shown in FIG. 1, the lid member 14 has a substantially dome shape, specifically a shape obtained by cutting the apex of the hemisphere, and includes a partial spherical surface 14a and a flat top surface 14b. With an outer surface. Similarly, the lid member 16 has a shape including an outer surface composed of a partial spherical surface 16a and a top surface 16b. Since it has a substantially dome shape, the lid members 14 and 16 have high pressure resistance against external pressure.

  In the case of the present embodiment, the lid members 14 and 16 are also made of a metal material such as aluminum.

  The lid members 14 and 16 further include flange portions 14d and 16d on the opening ends 14c and 16c side. By providing the flange portions 14d and 16d, the lid members 14 and 16 have high rigidity, that is, high pressure resistance against external pressure (compared to the case where there is no flange portion).

  As shown in FIG. 4, annular grooves 14 e and 16 e that engage with the open end 12 a of the tubular member 12 are formed in the flange portions 14 d and 16 d. A seal ring 18 is disposed in the annular grooves 14e and 16e. The seal ring 18 seals the gaps between the lid members 14 and 16 and the open end 12a of the cylindrical member 12, and the internal space 10a of the container 10 is sealed. Since the lid members 14 and 16 are connected to the open end 12a of the cylindrical member 12 by the flange portions 14d and 16d having high rigidity, the connection is maintained even when the container 10 receives external pressure. That is, the seal between each of the lid members 14 and 16 and the open end 12a of the cylindrical member 12 is maintained. For example, a camera (illustrated) or the like is mounted in the internal space 10 a of the sealed container 10. The camera mounted in the container 10 can photograph underwater without getting wet.

  The lid members 14 and 16 are connected by a plurality of linear rods 20 as shown in FIG. In the present embodiment, there are six rods 20. As shown in FIG. 3, the plurality of rods 20 are arranged at equal intervals along the outer peripheral surface 12 b of the cylindrical member 12. As shown in FIG. 2, each of the plurality of rods 20 extends in the direction of the central axis C of the cylindrical member 12.

  As shown in FIG. 4, male screw portions 20 a are formed at both ends of the rod 20. The male screw portion 20a passes through through holes 14f and 16f formed in the flange portions 14d and 16d of the lid members 14 and 16. A washer 22, a spring washer 24, and a nut 26 are attached to the male screw portion 20a that has passed through the through holes 14f and 16f. Accordingly, the lid members 14 and 16 are fixed to both ends of the plurality of rods 20.

  By connecting the lid members 14 and 16 via the plurality of rods 20, the connection between the lid members 14 and 16 and the tubular member 12 is maintained. As a result, the internal space 10a of the container 10 is maintained in a sealed state.

  From here, the pressure | voltage resistant structure of the container 10 for opposing external pressure is demonstrated.

  First, in the case of the present embodiment, as shown in FIG. 1, each of the lid members 14 and 16 has a substantially dome shape having an outer surface composed of a partial spherical surface and a flat top surface. With high pressure resistance. On the other hand, the cylindrical member 12 can be deformed so as to generate a constriction (a reduced diameter portion) when subjected to external pressure. Therefore, the container 10 includes a pressure-resistant structure described later that suppresses deformation of the cylindrical member 12.

  As shown in FIGS. 4 and 5, the lid members 14 and 16 include a plurality of rib portions 14 h and 16 h on the inner surfaces 14 g and 16 g. The rib portions 14h and 16h protrude from the inner surface surfaces 14g and 16g on the back side of the partial spherical surfaces 14a and 16a of the lid members 14 and 16, and extend to the opening ends 14c and 16c in the central axis C direction of the cylindrical member 12. Exist. In the case of the present embodiment, four rib portions 14 h are provided on the lid member 14, and four rib portions 16 h are provided on the lid member 16. The rib portions 14h and 16h suppress deformation of the lid members 14 and 16, particularly the partial spherical surfaces 14a and 16a.

  As shown in FIGS. 4 and 5, annular ring members 30 and 32 are arranged in the cylindrical member 12. In the case of the present embodiment, the ring members 30 and 32 have an annular shape, and are made of, for example, an aluminum material.

  As shown in FIG. 4, the ring members 30 and 32 include outer peripheral surfaces 30 a and 32 a that face the inner peripheral surface 12 c of the tubular member 12. The ring members 30 and 32 are arranged at different positions in the central axis C direction in the cylindrical member 12.

  As shown in FIG. 4, a plurality of support members 34 are arranged between each of the rib portions 14 h of the lid member 14 and the ring member 30 and between each of the rib portions 16 h of the lid member 16 and the ring member 32. Yes. These support members 34 are linear members, and have a threaded portion 34a formed at one end and a female threaded portion 34b formed at the other end. Further, these support members 34 are arranged at equal intervals along the inner peripheral surface 12 c of the cylindrical member 12. In the present embodiment, there are four support members 34 for each of the lid members 14 and 16.

  The male threaded portion 34a of the support member 34 is formed at the tip end (end on the opening end 14c, 16c side) of the rib portions 14h, 16h of the lid members 14, 16, and therefore engages with the threaded portions 14j, 16j. Thus, one end of the support member 34 is fixed to the rib portions 14h and 16h of the lid members 14 and 16.

  On the other hand, the female thread portion 34 b of the support member 34 engages with a screw 36 that penetrates the ring members 30 and 32. Specifically, the ring members 30 and 32 are formed with tongue pieces 30b and 32b projecting toward the center thereof, and the screw 36 penetrates the tongue pieces 30b and 32b. Thereby, the other end of the support member 34 is fixed to the ring members 30 and 32.

  As a result, the ring member 30 is supported by the lid member 14 via the support member 34, and the ring member 32 is supported by the lid member 16 via the support member 34.

  With such a pressure-resistant structure, when an external pressure (for example, water pressure) higher than the internal pressure is applied to the container 10, deformation of the cylindrical member 12 to the inside is suppressed. The deformation suppression mechanism will be described with reference to FIG.

  For example, when the container 10 is submerged in water, an external pressure (water pressure) P acts on the entire container 10. The water pressure P acts on the outer peripheral surface 12b of the cylindrical member 12, and the water pressure P also acts on the outer surface (partial spherical surface 14a, top surface 14b) of the lid member 14.

  As shown in FIG. 6, the connection part between one opening end 12a of the cylindrical member 12 and one lid member 14, in the case of this Embodiment, the opening end 12a of the cylindrical member 12 and the lid member 14 A moment M is generated substantially centered on the engaging portion between the annular groove 14e and the annular groove 14e. This moment M is generated mainly by the water pressure P acting on the partial spherical surface 14 a of the lid member 14. This moment M is centered on the connecting portion between the open end 12a of the cylindrical member 12 and the lid member 14, and the top surface 14b side of the rib portion 14h on the back side of the partial spherical surface 14a of the lid member 14 is centered on the container 10. The moment is such that the opening end 14 c side of the rib portion 14 h rotates toward the outside of the container 10.

  From another viewpoint, when the rib portion 14h and the support member 34 are regarded as one object, a force point is generated in the rib portion 14h, and the connection portion between the open end 12a of the tubular member 12 and the lid member 14 is formed. It functions as a fulcrum and an action point is generated in the support member 34.

  Due to this moment M, an outward force Fout toward the inner peripheral surface 12c of the tubular member 12 is generated at the other end of the support member 34 whose one end is fixed to the rib portion 14h. Since the ring member 30 is fixed to the other end of the support member 34, the other end of the support member 34 presses the inner peripheral surface 12 c of the tubular member 12 with the force Fout through the ring member 30. Thereby, the support member 34 supports the cylindrical member 12 which has received the water pressure P on the outer peripheral surface 12b through the ring member 30 from the inside.

  Similarly, a moment substantially centering on the connecting portion between the other opening end 12a of the cylindrical member 12 and the other lid member 16 is also generated. Thereby, the support member 34 supports the tubular member 12 receiving the water pressure P via the ring member 32.

  Strictly speaking, as shown in FIG. 6, the inner side force Fin acts on the ring member 30 via the tubular member 12 due to the water pressure P acting on the outer peripheral surface 12 b of the tubular member 12. That is, a force Fin for reducing the diameter of the ring member 30 acts. When the diameter of the ring member 30 is reduced, the tubular member 12 is deformed inward, so that the force Fout generated by the moment M at least partially cancels out this inward force Fin. Thereby, the diameter reduction of the ring member 30 is suppressed, and the deformation | transformation to the inner side of the cylindrical member 12 by the water pressure P is suppressed.

  Note that the magnitude of the outward force Fout that acts on the tubular member 12 generated by the moment M is determined by the material and shape of the lid member 14 (16), the material and length of the support member 34, and the like. Also, depending on the distance from the connecting portion (center of moment) between the open end 12a of the cylindrical member 12 and the lid member 14 (16) to the tip of the support member 34 (end on the ring member 30 (32) side). Determined.

  On the other hand, the magnitude of the inward force Fin generated by the water pressure P acting on the cylindrical member 12 is the material, thickness and diameter of the cylindrical member 12, the cylindrical member 12 and the ring member 30 (32). It depends on the gap between the two.

  The geometrical, structural, and material factors that determine these forces Fout and Fin are determined by the pressure (external pressure) of the environment in which the container 10 is used.

  With such a pressure-resistant structure, deformation of the cylindrical member 12 due to external pressure is suppressed, and damage to the entire container 10 is suppressed. In other words, in the case of the present embodiment, the cylindrical member 12 made of transparent glass, transparent resin material, or the like has lower rigidity (resistance to breakage) than the lid members 14 and 16 made of a metal material such as aluminum. The deformation of the container 10 is suppressed, and damage to the entire container 10 is suppressed.

  In addition, when a camera (not shown) is mounted in the container 10 and the container 10 is submerged in water, the camera is good in water through the transparent cylindrical member 12 whose deformation is suppressed by the support member 34. Can be taken. That is, since the deformation of the cylindrical member 12 is suppressed, a good captured image with little image distortion can be obtained.

  According to the present embodiment as described above, the container 10 constituted by the cylindrical member 12 and the lid members 14 and 16 is prevented from being damaged by external pressure.

  Note that the embodiments of the present disclosure are not limited to the above-described embodiments.

  For example, in the case of the above-described embodiment, as shown in FIG. 2, the lid members 14 and 16 have a substantially dome shape including an outer surface composed of partial spherical surfaces 14a and 16a and flat top surfaces 14b and 16b. However, the embodiment is not limited to this. For example, the lid members 14 and 16 may have a hemisphere, a pyramid, a cone, a truncated pyramid, a truncated cone shape, or the like. That is, the lid member may be a member that is connected to the opening end of the cylindrical member and covers the opening of the cylindrical member.

  Moreover, in the case of the above-mentioned embodiment, although the cylindrical member 12 is a cylindrical shape, this Embodiment is not restricted to this. For example, a cylindrical member having a square cross section orthogonal to the central axis direction may be used.

  Furthermore, in the case of the above-described embodiment, as shown in FIG. 6, the support member 34 supports the inner peripheral surface 12c of the tubular member 12 via the ring member 30 (32). Not limited to. The support member 34 may support the inner peripheral surface 12c of the cylindrical member 12 directly.

  Furthermore, in the case of the above-described embodiment, as shown in FIG. 4, the cylindrical member 12 includes open ends at both ends in the direction of the central axis C, but the embodiment is not limited thereto. For example, the cylindrical member may be a bottomed cylindrical member having an open end only at one end. In this case, the container has one lid member.

  In addition, in the case of the above-described embodiment, as shown in FIG. 4, two ring members 30 and 32 are provided, and one ring member 30 is supported by the lid member 14 via the support member 34, and the other The ring member 32 is supported by the lid member 16 via the support member 34. However, the embodiment is not limited to this. For example, one ring member may be supported by two lid members via a support member. Or the ring members currently supported by each of two lid members may be connected.

  In addition, in the case of the above-described embodiment, the lid member 14 (16), the support member 34, and the ring member 30 (32) are separate parts. May be.

  As described above, the embodiments have been described as examples of the technology in the present disclosure. For this purpose, the accompanying drawings and detailed description are provided. Accordingly, among the components described in the accompanying drawings and the detailed description, not only the components essential for solving the problem, but also the components not essential for solving the problem in order to illustrate the technology. May also be included. Therefore, it should not be immediately recognized that these non-essential components are essential as those non-essential components are described in the accompanying drawings and detailed description.

  Moreover, since the above-mentioned embodiment is for demonstrating the technique in this indication, a various change, replacement, addition, omission, etc. can be performed in a claim or its equivalent range.

  The disclosure of the specification, drawings, and claims of Japanese Patent Application No. 2006-090817 filed on April 28, 2016 is incorporated herein by reference in its entirety. .

  The present disclosure can be applied to a container that receives an external pressure higher than its internal pressure.

Claims (5)

A pressure-resistant structure container having a pressure-resistant structure,
A tubular member;
A lid member connected to the opening end of the tubular member and covering the opening of the tubular member;
One end is attached to the inner surface of the lid member, and the other end has a support member facing the inner peripheral surface of the tubular member,
When the pressure-resistant structural container receives an external pressure higher than the internal pressure, the external pressure acting on the lid member generates a moment around the connecting portion between the open end of the cylindrical member and the lid member, and the moment The support member supports the inner peripheral surface of the cylindrical member on which the external pressure acts with the force generated at the other end of the support member ,
The lid member includes a plurality of rib portions protruding from the inner surface thereof,
A ring member having an outer peripheral surface facing the inner peripheral surface of the tubular member is provided;
Each of the plurality of support members is a pressure-resistant structure container in which one end is fixed to the rib portion and the other end is fixed to the ring member . The lid member has an outer surface composed of a partial spherical surface and a flat top surface;
The pressure-resistant structure container according to claim 1 , wherein the plurality of rib portions are provided on a portion of the inner surface on the back side of the partial spherical surface. The lid member has a flange portion,
The pressure | voltage resistant structure container of Claim 1 or 2 with which the annular groove | channel engaged with the opening end of a cylindrical member is provided in the flange part. Both ends of the tubular member are open ends,
A lid member is attached to each open end,
Arranged along the outer peripheral surface of the tubular member, having a plurality of rods and a second end respectively secured to the flange portion at one end and the other of the lid member fixed to the flange portion of one of the lid member, according to claim 3 A pressure-resistant structure container as described in 1. The tubular member is made from transparent glass or transparent resin material,
The pressure-resistant structure container as described in any one of Claim 1 to 4 with which the cover member is produced from the metal material.

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