JPH0246848B2 - PECHIKATONOKAIKOBUKAIHEISOCHI - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to combustion ports or ash outlets of heating devices such as petikas, ash outlets of collective chimneys, underfloor ventilation holes provided in concrete structures such as cloth foundations, etc. This invention relates to a device for opening and closing an appropriate opening.

[Conventional technology]

Conventionally, as opening/closing devices for the various openings mentioned above,
It is known to have a lid hinged to the rim, or exceptionally to have a screw-in lid.

[Problem that the invention seeks to solve]

However, during long-term use, these known devices become unusable due to rust, dust buildup, wear, and damage, especially on the hinges or screw-in portions, and also make them unusable. At the opening of the polymerized smoke tube, there were problems such as tar adhesion that made it difficult to open and close the lid, and expansion and deformation caused by high heat that made it impossible to open and close.

The present invention has been proposed to solve these problems.

[Means for solving problems]

The structure of the present invention for achieving the above object will be described below based on the illustrated embodiments.

That is, the opening/closing device of the present invention includes a mounting frame a that fits into the opening and a lid b that is detachable from the frame a. The above-mentioned mounting frame a has an annular opening rim 2 protruding in front of the inner periphery of an annular collar plate 1 that comes into contact with the outer peripheral surface of the opening, and a projecting piece 4 having a vertical hole 3 in the upper central edge of the front surface on the left and right sides. L-shaped receiving pieces 5, 5 are provided on both edges, respectively. Further, the annular collar plate 1 is provided with an annular insertion frame plate 1' on its rear surface.

The lid body b has the annular lip 2 on the outer periphery of the main plate 6.
It has a circumferential wall 6' that fits loosely into the circumferential wall 6', and a vertical protrusion 7 that can be freely inserted into the vertical hole 3 on the central upper surface of the circumferential wall 6', and can be inserted into and mounted on the L-shaped receiving pieces 5, 5 on both left and right sides. Lateral protrusions 8, 8 are provided, respectively.

[Function] Therefore, according to the present invention, the mounting frame a is fitted and fixed in the opening of a pocket etc., and the vertical projection 7 of the lid b is inserted into the vertical hole 3 of the projection piece 4. While inserting from below, fit the peripheral wall 6' to the annular lip 2, and then close the lid b.
is pressed against the front surface of the annular collar plate 1, and when the horizontal protrusions 8, 8 on both left and right sides are aligned with the L-shaped receiving pieces 5, 5, the upper end of the vertical protrusion 7 is still aligned with the vertical hole 3. At the same time, the horizontal protrusions 8, 8 are inserted into and mounted on the L-shaped receiving pieces 5, 5, and the main plate 6 is brought into close contact with the annular lip 2, resulting in a predetermined closed state. To close this lid, lift the lid body b to disengage the horizontal protrusions 8, 8 from the L-shaped receiving pieces 5, 5, and then pull the lower side of the lid body b towards you and hold the vertical protrusions 7. It is sufficient to pull it out from the vertical hole 3.

〔Example〕

1 to 3 show the first embodiment in which the front shape is an oblong rectangle, FIGS. 4 and 5 show the second embodiment in which the front shape is square, and FIGS. 6 and 7 show the second embodiment in which the front shape is a square. A third embodiment is shown in which the front shape is circular.

The first embodiment will be described in detail below.

A is a die-cast mounting frame body, which has an annular mouth edge 2 on the inner periphery front of a rectangular annular collar plate 1 on the front side.
At the same time, a projecting piece 4 having a vertical hole 3 is provided at the upper edge of the front center of the collar plate 1,
L-shaped receiving pieces 5, 5 are provided on both left and right edges.
1' is an annular insertion frame plate formed protruding from the rear surface of the annular collar plate 1.

b is a lid body also made of die-casting, and it has the annular lip 2 on the outer periphery of the main plate 6 which is rectangular in shape on the front side.
It has a peripheral wall 6' that is slightly larger than the above, and has a vertical projection 7 on the upper center surface of the peripheral wall 6', and horizontal projections 8, 8 on both left and right sides of the peripheral wall 6'.
has been established.

The vertical protrusion 7 has the required shape and dimensions to be inserted into the vertical hole 3, and the horizontal protrusion 8,
8 is set to have a required shape and size to allow the L-shaped receiving pieces 5, 5 to be inserted into and mounted on the L-shaped receiving pieces 5, respectively.

c is a chain that connects the lid to the mounting frame a;
A bolt 10 is attached to the protrusion 9 provided on the central lower edge rod of the annular collar plate 1, and a bolt 12 is attached to the protrusion 11 provided at the center of the main plate 6 of the lid b, at both ends of the chain c. is stopping. The chain c has an appropriate length so as not to interfere with the attachment and detachment of the lid b to the mounting frame a.

The mounting frame a is an annular insertion frame that can be attached to the combustion inlet or ash outlet of a heating device such as a heating device, the ash outlet of a collective chimney, an underfloor ventilation opening provided in a concrete structure such as a cloth foundation, or any other appropriate opening. The plate 1' is inserted and the annular collar plate 1 is fitted and fixed in contact with the outer peripheral surface of the opening.

The lid b remains connected to the mounting frame a by the chain c and can be mounted on or removed from the mounting frame, thereby opening and closing the opening.

That is, in order to fit and mount the lid b on the mounting frame a, while inserting the vertical protrusion 7 of the lid b into the vertical hole 3 of the protruding piece 4 from below, insert the peripheral wall 6' into the annular lip 2. The peripheral wall 6' is pressed against the front surface of the annular collar plate 1 to lift it up, and when the horizontal protrusions 8, 8 on both left and right sides are aligned with the L-shaped receiving pieces 5, 5, it is lowered. As a result, the upper end of the vertical projection 7 is still engaged with the vertical hole 3, and the horizontal projections 8, 8 are inserted into and mounted on the L-shaped receiving pieces 5, 5, and the main plate 6 is mounted on the annular lip 2. The lid is in a predetermined closed state where the lid is tightly closed. To open this lid, lift the lid body b and separate the horizontal protrusions 8, 8 from the L-shaped receiving pieces 5, 5,
Therefore, it is sufficient to pull the vertical projection 7 out of the vertical hole 3 while pulling the lower side of the lid body b towards you.

The second embodiment shown in FIGS. 4 and 5 is a mounting frame a
The annular collar plate 1 is square in front, the annular lip 2 is circular, the lid b is therefore circular, and bolts 10 and 12 are installed to fasten both ends of the chain c. Although there are some differences from the first embodiment in that the standing position is slightly different,
The other configurations are substantially the same as the first embodiment.

The second embodiment shown in FIGS. 6 and 7 is a mounting frame a
This embodiment differs from the first embodiment in that both the lid body b and the lid body b are formed in a circular shape in front, and that there is no bolt to fasten the chain that connects the two, but the other configurations are substantially the same as the first embodiment. is the same as

The materials of the mounting frame a and the lid b depend on the type of opening in which the opening/closing device of the present invention is installed.
It can also be made of synthetic resin instead of die-casting in the above embodiments. That is, unlike the opening of a heating device, it may be made of synthetic resin if it is used for an underfloor ventilation opening that is not exposed to high heat.

〔Effect of the invention〕

As is clear from the above description, according to the opening/closing device of the present invention, the attachment frame is attached to the opening by abutting the annular flange plate against the outer peripheral surface of the opening, and by touching the rear surface of the flange plate. By inserting the protruding annular insertion frame plate into the opening and fixing it by a necessary means, and attaching and detaching the lid to the mounting frame, the opening can be easily opened and closed. Moreover, it can be done accurately.

In other words, the vertical protrusion provided on the upper center of the peripheral wall of the main plate of the lid, the vertical hole of the protrusion provided on the upper front center edge of the annular collar plate of the mounting frame, and the left and right sides of the peripheral wall of the main plate of the lid. When the lid is mounted on the mounting frame by engaging the horizontal protrusions provided on the mounting frame with the L-shaped receivers provided on both left and right edges of the annular collar plate of the mounting frame, the main plate of the lid The rear surface is in close contact with the annular lip of the mounting frame, and the lid can be removed from the mounting frame by releasing the engagement. Therefore, there are no problems such as rust, dust adhesion, wear, damage, tar adhesion, thermal expansion deformation, etc.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a front view of the first embodiment, FIGS. 2 and 3 are a plan view and a vertical sectional view of the same, and FIG. 4 is a front view of the second embodiment. , FIG. 5 is a longitudinal sectional view of the same as above, FIG. 6 is a front view of the third embodiment, and FIG. 7 is a longitudinal sectional view of the same. a... Mounting frame body, b... Lid body, 1... Annular collar plate, 2... Annular lip, 3... Vertical hole, 4... Protrusion,
5, 5... L-shaped receiving piece, 6... Main plate, 6'... Peripheral wall,
7...Vertical protrusion, 8,8...Horizontal protrusion.

Claims (1)

[Claims] 1 Consisting of a mounting frame that fits into the opening and a lid that is detachable from the frame, the mounting frame has an annular opening in front of the inner periphery of the annular collar plate that comes into contact with the outer peripheral surface of the opening. In addition to protruding edges, a projecting piece with a vertical hole is provided at the upper edge of the front center, and L-shaped receiving pieces are provided at both left and right edges, and an annular insertion frame plate is provided on the rear surface of the annular collar plate. The lid plate has a peripheral wall on the outer periphery of the main plate that fits loosely into the annular opening, and a vertical projection that can be inserted into the vertical hole on the central upper surface of the peripheral wall, and the L-shaped projection on both left and right sides. An opening/closing device for an opening such as a pocket bag, characterized in that each receiving piece is provided with horizontal protrusions that can be inserted into and placed on the receiving piece.