Sealed chamber

Abstract

To provide a sealed chamber capable of simultaneously sealing four sides of a lid with a single operation and simply opening and closing the lid.SOLUTION: A housing is composed of a bottom face, a front face, a rear face, and right and left side faces of a rectangular solid, a lid 1 is composed of a top face, and the lid has a U-shaped cross-sectional shape with right and left side faces. The rear side of the lid and the rear face of the housing are connected with each other by a hinge. A columnar projection 2 is disposed at a center of the right and left side faces of the lid. A rotation axis 13 is disposed at a position between the projection of the lid and the hinge on the right and left side faces of the housing. The tips of the short sides of L-shaped hooked cantilevers 14 are connected with rotation axes of the right and left side faces of the housing one by one. The tips of the long sides of the right and left cantilevers are connected by a shaft 16 via crossing blocks 18. A bracket 17 is disposed so as to rotate. A rectangular solid-shaped stopper 11 is disposed on the front face of the housing. A side on the front side of the lid is pressed by the shaft after the lid is closed. The projections on the right and left side faces of the lid are simultaneously pressed by the cantilevers. The bracket disposed on the shaft is hooked and fixed by the stopper on the front face of the housing.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a chamber for maintaining airtightness in the field of physics and chemistry.

Background Art

[0002] In research in the field of physics and chemistry, a sample is placed in a cylindrical or rectangular parallelepiped container sealed with packing or the like, and the progress is observed in a specific atmosphere, and the state may be maintained during movement or transportation. In the field of life sciences, it is used as an incubator for culturing by adjusting the concentrations of oxygen and carbon dioxide according to cells.

Disclosure of the Invention

Problems to be Solved by the Invention

[0003] The structure of a cylinder is simple by simply attaching an annular packing around the lid, but a rectangular parallelepiped shape is often adopted to ensure a larger volume. To enhance the airtightness of a rectangular parallelepiped, there is a method of using the top surface of the rectangular parallelepiped as a lid and closing its four sides strongly with clips or the like. However, there are problems that it takes time to operate four places for opening and closing and force is required. The present invention solves such problems.

Means for Solving the Problems

[0004] To solve the problem, the device uses the bottom surface, the front surface, the rear surface, and the left and right side surfaces of a rectangular parallelepiped as the housing, and the top surface as the lid. The lid has a structure in which a plate is bent into a shape with left and right side surfaces. The rear side of the lid and the rear surface of the housing are connected by a hinge. Cylindrical protrusions are provided at the centers of the left and right side surfaces of the lid. Rotation shafts are provided on the left and right side surfaces of the housing at positions between the protrusions of the lid and the hinge. The tips of the short sides of L-shaped hook-type cantilevers are connected one by one to the rotation shafts on the left and right side surfaces of the housing. The tips of the long sides of the left and right cantilevers are connected by a shaft via an intersection block. A bracket is provided to rotate around the axis of the shaft. A rectangular parallelepiped-shaped stopper is provided on the front surface of the housing. After the lid is closed, the shaft presses the front side of the lid, and at the same time, the protrusions on the left and right side surfaces of the lid are pressed by the cantilevers. The bracket provided on the shaft is hooked on the stopper on the front surface of the housing for fixation.

Advantages of the Invention

[0005] By simply fixing the bracket to the stopper, the four sides of the lid are fixed, and the sealing degree can be easily maintained.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0007] Hereinafter, the embodiments of the present invention will be shown. (a) In a rectangular parallelepiped container, the top surface is used as lid 1, and the front surface, rear surface, left and right side surfaces, and bottom surface are configured as housing 10. Lid 1 has side surfaces that hang down to the left and right in line with the left and right side surfaces of housing 10, and the rear side of lid 1 and the rear surface of housing 10 are connected by hinge 4. (b) Cylindrical protrusions 2 are provided one on each side at the center of the left and right side surfaces of lid 1, a tab 3 extending forward is provided on the front side edge of lid 1, rotating shafts 13 are provided on the left and right side surfaces of housing 10 so as to be positioned on the rear surface side of housing 10 from protrusions 2 on the left and right side surfaces of lid 1, and a rectangular parallelepiped stopper 11 is provided on the front surface of housing 10. (c) It is configured in an L shape by cantilever 14 and cantilever block 15. The tip of cantilever block 15 is connected to rotating shaft 13 so as to rotate, and is connected by shaft 16 via intersection block 18 at the tip of cantilever 14. Shaft 16 is positioned to press the front side edge of lid 1. (d) It is a bracket 17 shaped like a lying-down sideways U, which is provided so as to sandwich the widths of tab 3 and stopper 11 on the inside, and has a shape and dimensions that fit the bottom surface of stopper 11 on the upper side of the horizontal plane. Bracket 17 is provided on shaft 16 so as to rotate around the axis of shaft 16. (e) An O-ring 12 made of a soft material such as fluororubber is provided on the upper surface of housing 10. The present invention has the above structure, and when in use, it is as follows.

[0008] In the state where lid 1 is open as shown in FIGS. 1, 4, and 5, samples such as containers or test materials in which cells or microorganisms to be experimented are seeded are placed in housing 10, and lid 1 is closed as shown in FIG. 2, and tab 3 provided on the front side edge of lid 1 is aligned with the upper surface of stopper 11 provided on the front surface of housing 10.

[0009] As shown in FIGS. 3, 6, and 7, press down tab 3 with shaft 16 and push it onto the bottom surface of stopper 11 above the horizontal plane of bracket 17. The rear side of lid 1 is connected to housing 10 by hinge 4, and due to the repulsive force of O-ring 12, lid 1 is fixed to the housing at the front and rear sides.

[0010] As shown in FIGS. 3, 8, and 9, simultaneously press down the left and right protrusions 2 of lid 1 with cantilever 14. The left and right sides of lid 1 have a U-shaped cross-section with hanging side surfaces and are rigid in the front-rear direction. Therefore, when protrusion 2 descends, the repulsive force of O-ring 12 provided on the upper surface of housing 10 causes the left and right sides of lid 1 to be pushed down. Thus, the four sides of lid 1 are in close contact with housing 10, and the interior is sealed.

[0011] Although cantilever 14 and cantilever block 15 are not integrally formed in a hook shape but are divided into two components, this allows the vertical length of cantilever block 15 to be changed, the vertical position of cantilever 14 to be adjusted, and the force for pressing down protrusion 2 to be adjusted. Furthermore, as shown in FIG. 10, by dividing into cantilever block 15a and cantilever block 15b and fastening them with screws in the vertical direction, the tightening amount of the screws can be adjusted to easily change the vertical position of cantilever 14, and the force for pressing down protrusion 2 can be adjusted more easily. This enables the four sides of lid 2 to be uniformly pressed against O-ring 12 and thus housing 10 without the force for tightening protrusion 2 being too weak and causing gas leakage, or conversely, being too strong and weakening the force of shaft 16 for pressing down tab 3, thereby preventing gas leakage.

[0012] A joint 19 is provided on the side surface of housing 10 to connect tube 20. As shown in FIG. 3, one of joints 19 is provided with a check valve that flows in the direction into the warehouse and the other flows in the direction out of the warehouse and does not flow in the reverse direction. When gas is flowed into the warehouse through tube 20 and the gas flow is stopped when it is full, the check valve retains the gas in the warehouse, enabling the removal and transportation of tube 20.

[0013] When opening the lid 1, simply rotate the bracket 17 by pulling it forward with your hand. A protrusion may be provided on the lower surface of the bracket 17 to make it easier to pull.

[0014] By providing the glass 5 on the bottom surface of the lid 1 and the housing 10, the interior can be observed. A transparent conductive film can be vapor-deposited on the glass 5, and the interior of the storage can be kept warm by energizing it to generate heat.

Explanation of Reference Numerals

[0015] 1 Lid 2 Protrusion 3 Tab 4 Hinge 5 Glass 10 Housing 11 Stopper 12 O-ring 13 Rotation shaft 14 Cantilever 15 Cantilever block 15a Cantilever block 15b Cantilever block 16 Shaft 17 Bracket 18 Cross block 19 Joint 20 Tube

Claims

**Claim 1** A chamber having a rectangular parallelepiped shape for storing a sample containing cells or microorganisms inside, comprising a housing formed by a front surface, a rear surface, left and right side surfaces, and a bottom surface, the top surface having a shape with left and right side surfaces and serving as a lid, the rear edge of the lid being connected to the rear surface of the housing by a hinge for opening and closing, one protrusion being provided at the center of each of the left and right side surfaces of the lid, a rotating shaft being provided at the center of the left and right side surfaces of the housing and on the rear side of the protrusion of the lid, a cantilever and a cantilever block being configured in an L shape, the tip of the cantilever block being connected to each of the left and right rotating shafts provided on the housing one by one, the tips of the left and right cantilevers being orthogonally connected by a shaft, a bracket that rotates about the axis of the shaft being provided on the shaft, a rectangular parallelepiped stopper being provided on the front surface of the housing, and when the lid is closed and the shaft is lowered, the shaft presses the front side edge of the lid, and the cantilever connected to the shaft presses the protrusions provided on the left and right side surfaces of the lid, and a structure in which the lid is fixed together with the shaft and the cantilever by hooking the bracket on the rectangular parallelepiped stopper provided on the front surface of the housing. A sealed chamber characterized by this. **Claim 2** The sealed chamber according to claim 1, wherein two joints are provided on the side surface of the housing, tubes are provided on the joints, one of the joints is provided with a check valve that flows into the storage and the other flows out of the storage and stops in the reverse direction, transparent glass is fitted on the top surface and the bottom surface, the transparent glass is provided with a function of vapor depositing and energizing a transparent conductive film, and a temperature sensor for detecting the temperature of the transparent conductive film is attached.

Images