JPH0318776Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sealing device for sealing internal fluid leaking from a flange mating surface of a sealed cylindrical container.

[Conventional technology]

Conventionally, in this type of cylindrical container, as shown in FIG. 3, the flange 5 of the lid 4 is joined to the flange 3 formed on the outer peripheral edge of the upper opening 2 of the cylindrical container main body 1. Some devices have a structure in which the flanges 3 and 5 are tightened together with bolts 6 and closed and sealed. If the internal fluid W leaks from the flange mating surface 7 of such a cylindrical container and cannot be prevented by welding, a rubber-like filler is usually applied to the cylindrical container body 1 and the lid. By filling the area around the mating surfaces 7 of the flange portions 3 and 5 of the body 4, leakage is prevented.

[Problem that the invention attempts to solve]

However, with the above-described sealing means by filling with a filler, if the outer shape of the flange part is not circular, it is not possible to seal the outer circumferential side of the flange part, and as shown in FIG. The upper circumference of the container body 1 is surrounded entirely, and copper gaskets 10 and 11 are provided at the joints thereof for sealing, and the rubber filler P is introduced into the surrounding space 13 through the injection port 12 opened in the cover 8. Since the filler P is injected into the container and hardened, only a portion of the filler P is filled, which not only causes poor sealing performance but also makes the entire device bulky.

The present invention was developed under the above circumstances, and its purpose is to reduce the size of a cylindrical container so that it can reliably seal the mating surface of a flange having an external shape other than circular. The objective is to provide a possible sealing device.

[Means for solving problems]

In order to solve the above problems, this invention
A filler is filled and hardened around the mating surface of the flange formed on the outer edge of the opening of the cylindrical container body and the flange formed on the outer edge of the lid that covers the opening, and then sealed. In the sealing device, a filler injection flange is tightly fitted across the outer peripheral surfaces of both the flange parts, and this filler injection flange is located on the inner peripheral part of the mating surfaces of the two flange parts. This structure includes a recess formed on the outer periphery and having a circular outer edge, and filler injection ports extending into the recess at a plurality of locations in the circumferential direction.

[Effect]

That is, the sealing device of the present invention is formed by flanges on both the container body and the lid, and a recess on the inner circumference of the filler injection flange that is tightly fitted over the outer circumferences of both flanges. The mating surfaces of both flanges are sealed by injecting filler into the annular space from each filler injection port and curing it, since the outer edge of the recess forming the outer periphery of the annular space is circular. Regardless of the shape of the outer periphery of both flanges forming the inner edge of the annular space, the injected filler flows smoothly in the circumferential direction within the annular space and fills the entire periphery of the annular space.

〔Example〕

The present invention will be explained below based on an embodiment shown in FIGS. 1 and 2.

That is, in the sealing device according to the present invention, the mating surface 7 on the outer peripheral side surface of both the flanges 3 and 5 with the lid 4 that closes the upper end opening 2 of the cylindrical container main body 1.
A groove 21 with a V-shaped cross section is cut in the groove 21, and a flange 26 for injecting a filler is held between upper and lower flange holding plates 24, 25 attached to the outer periphery of the V-shaped groove 21 via lead gaskets 22, 23. It is provided and fastened with bolts 28 and nuts 29. The illustrated flange parts 3 and 5 have a substantially rectangular planar shape, and the filler injection flange 2 fits on the outer periphery of the flange parts 3 and 5.
The inner peripheral edge of 6 also has a corresponding substantially square shape. Further, a recess 27 whose outer periphery is slightly larger than the circumscribed circle of both flange parts 3 and 5 is formed at the inner peripheral part of the filler injection flange 26 at a position facing the outer edge of the mating surface 7. At the same time, filler injection ports 30 are provided radially through the recess 27 at four equal intervals in the circumferential direction. A rubber-like filler P is injected into the enclosed annular space 31 and cured. A high-temperature adhesive H is applied to the gaps between the upper and lower flange press plates 24, 25 and the flanges 3, 5 and the threaded portions of the bolts 6 to ensure complete sealing.

Therefore, according to the above configuration, the bolt 6
As the filler P is filled into each arcuate space 31a, 31a, . Since this filler P will eventually flow in the circumferential direction along the circular outer edge of the recess 27, the filler P can be injected and filled over the entire circumference of the flange mating surface 7, and the flange mating surface 7 can be injected and filled. It becomes possible to fill the gap between the surfaces 7 with the filler P, and the leaking internal fluid W can be reliably sealed.

[Effect of idea]

As is clear from the above description, according to the present invention, in sealing internal fluid leaking from the flange mating surface of a cylindrical container, an outer edge is attached to the inner circumference of the filler injection flange that surrounds the flange mating surface from the outside. A circular recess is provided, and as the filler is filled into the annular space constituted by the recess, the filler flows in the circumferential direction along the outer edge of the circle. Regardless of the shape of the flange of the cylindrical container, the flow of the filler when injecting becomes smooth, making it possible to fill the entire circumference of the flange mating surface, improving sealing performance, and making the device itself compact. This has excellent effects in that it can be applied to flange portions other than circular shapes.

[Brief explanation of drawings]

Fig. 1 is a half plan view showing an embodiment in which the sealing device according to the present invention is applied to the flange mating surface of a cylindrical container, Fig. 2 is a vertical side view taken along the line shown in Fig. 1, and Fig. 3 is a conventional one. FIG. 1... Cylindrical container body, 2... Upper end opening, 3,
5...Flange part, 4...Lid body, 6...Bolt,
7... Flange mating surface, 21... V-shaped groove in cross section, 22, 23... Lead gasket, 26... Flange for filler injection, 27... Recess, 30... Inlet, P... Filler.

Claims (1)

[Scope of utility model registration request] A filler is filled and hardened around the mating surface of the flange formed on the outer edge of the opening of the cylindrical container body and the flange formed on the outer edge of the lid that covers the opening, and then sealed. In the sealing device,
A filler injection flange is tightly fitted across the outer peripheral surfaces of both the flange parts, and the filler injection flange is located on the inner peripheral part of the outer peripheral surfaces of the mating surfaces of the two flange parts. 1. A sealing device comprising: a recess formed with a circular outer edge; and filler injection ports extending into the recess at a plurality of locations in the circumferential direction.