JP2001074276A - Protective cover for bent portion of air conditioner refrigerant piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount a protective cover with a simplified structure dealing flexibly even in the case where a bent portion of a refrigerant piping disposed on a wall surface of a building is different in a bent angle thereof for each building, and an angle of a building at a corner thereof is not a predetermined value such as a rectangle. SOLUTION: The protective cover comprises a bent frame structure 1 in which a hollow frame section 11 and a hollow frame section 21 are integrally formed to be coupled through a hinge. The flex frame 1 becomes displaceable in its degree of flex by rotating both hollow frames 11, 21 around a hinge serving as a rotation center such that both frames are mutually overlapped. Herein, both hollow frames 11, 21 include an engagement section composed of an elongated hole 16 and an engagement pawl 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective cover for a bent portion of an air conditioner refrigerant pipe provided along an outer wall of a house or the like to cover and protect the bent portion of the air conditioner refrigerant pipe. The present invention relates to a protective cover for a bent portion of a refrigerant pipe for an air conditioner which flexibly corresponds to a bent angle of a bent portion of a refrigerant pipe.

[0002]

2. Description of the Related Art Conventionally, a refrigerant pipe for an air conditioner is shown in FIG.
As shown in (1), after being taken out from the indoor unit through the outer wall surface 52 of the house and taken out of the room, piping is carried out along the outer wall surface 52 and connected to the outdoor unit 53. In this case, the window 5
4 or a door pocket or the like, the pipe is bent and detoured at 90 degrees, for example.

On the other hand, a refrigerant pipe 51 for an air conditioner, which is disposed on an outer wall surface 52 of a house, is provided from the viewpoint of protection and aesthetics.
A protective cover made of a half-cylindrical or cylindrical frame that covers the outside is attached. The protective cover is composed of an outlet cover 55, a straight frame 56 attached to the linear portion of the refrigerant pipe 51, and a bent frame 1 attached to the bent portion.

[0004]

However, this type of conventional protective cover, which is disposed around a window 54 or a door pocket, etc., has a different installation state for each house. The angle of the bend of the refrigerant pipe 51 is not always constant, for example, 90 degrees because of the relationship with the outdoor outlet, the mounting position of the window 54 or the door pocket, the installation location of the outdoor unit, and the like. On the other hand, since the protective cover is usually formed of a synthetic resin such as PVC, the bending angle of the bending frame 1 cannot be displaced in accordance with the bending angle of the refrigerant pipe 51 at the construction site. Therefore, in such a case, it is difficult or impossible to attach the bent frame 1.

[0005] In addition, a refrigerant pipe 5 at a corner portion of the building outer wall is provided.
1 is provided with a protective cover for the outside and inside covers that cover the cover. However, there are cases where the angle of the outer wall corner is not a fixed value, for example, an accurate right angle, based on the building structure such as the design of the building or the deformation of the building. Also in this case, the same problem as the bending angle of the refrigerant pipe 51 occurs,
Since the bending angle of the protective cover of the bent frame 1 cannot be changed, the mounting of the bent frame 1 has been difficult or impossible.

Therefore, in order to solve these problems,
JP-A-6-16800, JP-A-7-208682
The technology disclosed in Japanese Unexamined Patent Publication (Kokai) No. H10-26139 is disclosed. The technology described in these publications can flexibly change the bending angle of the bent frame body 1 attached to the corner of the refrigerant pipe 1 even if the bending angle of the corner is different depending on the construction situation of each house. Can be installed.

However, since the bent frame 1 described in these publications is constructed by combining a large number of components, the structure is complicated and the cost is high.

Accordingly, the present invention is directed to the case where the bending angle at the bent portion of the refrigerant pipe provided on the wall surface of the building differs from one building to another or when the angle at the corner of the building is not a constant value such as a right angle. It is another object of the present invention to provide a protective cover for a bent portion of a refrigerant pipe for an air conditioner which has a simple structure and can be flexibly mounted.

[0009]

According to a first aspect of the present invention, there is provided a protective cover for a bent portion of a refrigerant pipe for an air conditioner, wherein two hollow frame portions surrounding the refrigerant pipe disposed along the wall surface have a peripheral wall. It consists of a bent frame body that is connected only by a part or only by a part of a flange for attaching to a wall surface and integrally formed with the ends of the hollow frame part apart from each other except for the part, In a state where the bent frame body is rotated so that the ends of the two hollow frame portions are overlapped with each other around the connected portion, the two are substantially engaged by the mutual engagement between the separated ends. 9
It is assembled at a bending angle of 0 degrees, and is formed so that the bending angle of both can be further shifted from the assembled state of approximately 90 degrees by further rotation about the axis. It is.

According to a second aspect of the present invention, there is provided a protective cover for a bent portion of a refrigerant pipe for an air conditioner, wherein the two hollow frame portions described in the first aspect are connected on the inner peripheral side of the bent portion. And the two are assembled at a bending angle of about 90 degrees.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, a bent frame body 1 has a hollow frame shape in which the whole is bent at a bending angle of substantially 90 degrees, and is covered by a bent portion of a refrigerant pipe 51 disposed on an outer wall surface 52 of a house shown in FIG. It is formed integrally with a synthetic resin such as PVC. The bent frame body 1 is a hollow frame portion 1 formed in a half cylinder shape having a substantially U-shaped cross section.
1 and a hollow frame portion 21 also formed in a half-cylindrical frame shape are connected at right angles by a hinge 31. The hinge 31 is formed by integral molding only on the hollow frame portion 11 and the side surface on the same side of the hollow frame portion 21.
And the hollow frame portion 21 are integrally formed, and only that portion is thinly formed. Thus, the hollow frame portion 11 and the hollow frame portion 21 can rotate in the left and right directions within a predetermined range around the hinge 31 so that the bending angle of the bending frame 1 can be changed.

The hollow frame portion 11 and the hollow frame portion 21 are provided with a hollow frame inside the hollow frame portion 21 so as to prevent interference between opposed end surfaces when the hollow frame portion 11 is rotated about the hinge 31 as an axis. The inside dimension is increased so that the end of the portion 11 can be stored, and the overlapping portions 12 and 22 are formed at the ends of the hollow frame portion 11 and the hollow frame portion 21, respectively, where the overlapping portions 12 and 22 overlap each other. . Flanges 13 and 23 are integrally formed on the opening edges on both sides of the hollow frame portion 11 and the hollow frame portion 21, respectively, and are respectively attached to the outer wall surface 52 at each flange. Holes 14 and 24 through which tapping screws and the like are inserted.

Furthermore, on the outside of the bending of the bending frame 1,
As shown in FIGS. 2 and 3, the hollow frame portion 11 and the hollow frame portion 21 are formed with a flange 15 and a flange 25 that overlap with each other when rotated. The long hole 16 is provided with an engagement claw 26 at a position corresponding to the long hole 16 on the back surface side of the flange 25. That is, when the bent frame body 1 is bent and displaced about the hinge 31, the engagement claws 26 of the hollow frame portion 21 can move in the long holes 16 of the hollow frame portion 11. When the bent frame 1 covers the refrigerant pipe 51, the refrigerant pipe 51 is inserted from the one open end toward the other open end into a space formed between the bent frame 1 and the outer wall surface 52, It is formed in a size that can be accommodated.

Here, molding of the bent frame 1 and storage and transportation of the molded product will be described. The bent frame 1 is a hollow frame 11
And the hollow frame portion 21 do not overlap, and the engaging claw 26 is not engaged with the long hole 16, that is, in a state where the end portions of the hollow frame portion 11 and the hollow frame portion 21 are slightly separated from each other. They can be integrally formed by injection molding. Here, a square hole that penetrates the upper part of the engaging claw 26 for integral molding is formed.

After being formed in this manner, the engaging pawl 26
Is fitted into the long hole 16. In this assembled state,
Since the hollow frame portion 11 and the hollow frame portion 21 do not separate from each other, there is no backlash, and the engagement claw 26 prevents the hollow frame portion 21 and the hollow frame portion 21 from coming off, so that the assembled state is not released. For this reason, it will be in a stable state and a molded article can be safely stored and transported. In addition, since the moving distance of the engaging claw 26 engaging with the long hole 16 of the predetermined length is regulated, the hollow frame portion 11 and the hollow frame portion 21 are opened or closed at a certain angle or more. As a result, the bent frame 1 is prevented from being broken at the hinge 31 or the like.

Next, the operation of attaching the protective cover for the bent portion of the refrigerant pipe for the air conditioner of the embodiment constructed as described above to the outer wall surface of the house will be described.

As shown in FIG. 10, a refrigerant pipe 51 is provided on the outer wall surface 52 of the house. To attach the bent frame 1 to this bent portion, first, the hollow frame portion 11, the hollow frame One of the parts 21 is held at one end of the straight frame body 56 on one side, and a tapping screw (not shown) is provided in the mounting hole 14 of the flange 13 of the hollow frame part 11 or the mounting hole 24 of the flange 23 of the hollow frame part 21. And is screwed and fixed to the outer wall surface 52. Next, while adjusting the bending angle of the bending frame body 1 via the hinge 31, the other side is held at the end of the straight frame body 56 on the other side, and similarly fixed to the outer wall surface 52 using tapping screws. I do. At this time, the hollow frame portion 11 and the hollow frame portion 21 are guided in the rotation direction by the engagement of the elongated holes 16 and the engagement claws 26, and are reliably rotated around the thinly formed hinge 31 as an axis. Can be shifted to the bending angle. In this way, the hollow frame portion 11 and the hollow frame portion 21 are separately and independently attached to the outer wall surface 52, and the bending angle is stably maintained at a constant value. As a result, even if the connecting portion is broken by an external force such as an object hitting, the entire shape can be maintained, and the function as the protective cover is maintained.

Incidentally, in the above embodiment, the hollow frame 21
The engaging claw 26 is engaged with the long hole 16 of the hollow frame portion 11 to guide the rotation direction, and at the same time, the angle is prevented from being shifted more than a certain angle to prevent damage during storage or transportation. As shown in FIGS. 4 and 5, a long groove-shaped engaging recess 16a which does not penetrate the flange 15 of the hollow frame portion 11 is provided, and a short columnar shape engaging with the engaging recess 16a is formed in the flange 25 of the hollow frame portion 21. By forming the engaging projection 26a, the guide in the rotating direction and the movement of a predetermined angle or more can be prevented.

In place of or in combination with the engagement between the elongated hole 16 and the engaging claw 26, the upper surface or the side wall surface on which the hollow frame portion 11 and the hollow frame portion 21 slide relative to each other. By forming grooves and projections in the shape of irregularities, the sliding between the hollow frame portion 11 and the hollow frame portion 21 is guided, and furthermore, the movement over a certain angle can be restricted. And it does not prevent taking other measures.

As described above, the protective cover for the bent portion of the refrigerant pipe for the air conditioner of the above-described embodiment has two hollow frames formed of the hinge 3.
1. The bent frame 1 is integrally formed so as to be connected by the first frame 1. The bent frame 1 is rotated around the hinge 31 so that the two hollow frames overlap each other, thereby reducing the degree of bending. The two hollow frame portions have a long hole 16 as a long groove and an engagement claw 2 as an engagement protrusion.
6 is provided.

Therefore, since the bending frame 1 can be adjusted to an arbitrary bending angle, the bending angle of the corner portion of the refrigerant pipe 51 varies from house to house and can be easily dealt with even if a certain angle, for example, a right angle does not appear accurately. And can be mounted in an optimal condition.

In this embodiment, since it is formed by integral molding, the number of parts is small and it can be covered with a very simple structure.

Next, another embodiment of the present invention will be described with reference to FIGS.
It will be described based on. Bent frame 1 shown in FIGS. 6 and 7
Has a hinge 31 as a connecting portion between the hollow frame portion 11 and the hollow frame portion 21 provided on the upper surface, not on one side surface. That is, while the bent frame 1 shown in FIGS. 1 to 5 is rotated left and right around the hinge 31 provided on one side as an axis, the bent frame shown in FIGS. 6 and 7 is used. 1
Is designed to rotate vertically in the figure around a hinge 31 provided on the upper surface. This bent frame 1
In the above, the overlapping portion 1 of the hollow frame portion 11 and the hollow frame portion 21
2 and the overlapping portion 22 are formed on both left and right sides. This bent frame body 1 is suitable for being attached as a nest to the inner corner portions of two orthogonal outer wall surfaces 52, and the perpendicularity formed between the two orthogonal outer wall surfaces 52 is exactly 90 degrees. Especially when not in effect.

Next, still another embodiment of the present invention will be described with reference to FIGS. In the bent frame 1 shown in FIGS. 8 and 9, the hinge 31 is formed at a connection portion between the flanges 13 and 23 provided at the opening edges of the hollow frame 11 and the hollow frame 21. This bent frame 1
The hollow frame portion 11 and the hollow frame portion 21 are formed in a substantially U-shaped cross section in the same manner as in each of the above-described embodiments.
Polymerizes on the surface. The bent frame body 1 is applied to a case where the bent frame body 1 is attached to the outer corners of two outer wall surfaces 52 which are perpendicular to each other as a protrusion.

The bent frame 1 of each of the above embodiments is
The present invention can be applied not only to the outer wall surface 52 of a house but also to a bent portion of piping related to an air conditioner disposed on an outer wall surface of a building such as a building or a warehouse. The bent frame 1 is not limited to the refrigerant pipe 1, and can be applied to a case where the bent frame is covered by a bent portion of a pipe material such as a drain tube. By inclining the drain tube for drain drainage, the opening angle of the bent portion is likely to be different, so that the effect of the present invention is similarly obtained.

The hollow frame portion 11 and the hollow frame portion 21
Has a one-sided opening formed in a substantially U-shaped cross section, but is not limited to this shape, and may be a cylindrical frame such as a square tube or a hexagonal tube.

[0027]

As described above, the protective cover for the bent portion of the refrigerant pipe for an air conditioner of the present invention has two hollow frames covering the refrigerant pipe disposed along the wall surface only in part of the peripheral wall. Or a bent frame body integrally formed in a state where ends of the hollow frame portion are separated from each other except for a part of the flange for mounting on a wall surface,
In a state where the bent frame body is rotated so that the ends of the two hollow frame portions are overlapped with each other around the connected portion, the two are substantially engaged by the mutual engagement between the separated ends. It is assembled at a bending angle of 90 degrees, and is formed so that the bending angle of both can be further shifted from the assembled state of approximately 90 degrees by further rotation about the axis. It is. Therefore, even if the bending angle of the refrigerant pipe is different for each house or the like, the bending angle can be continuously and arbitrarily changed and can be flexibly mounted, and can be easily mounted with a simple structure. At the same time, since it can be integrally molded, it can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a protective cover of a bent portion of a refrigerant pipe for an air conditioner according to an embodiment of the present invention when viewed from the inside of the bent portion.

FIG. 2 is a perspective view of the protective cover of the bent portion of the refrigerant pipe for the air conditioner of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view showing a modification of the engaging portion of FIG. 2;

FIG. 5 is a cross-sectional view taken along the line BB of FIG. 4;

FIG. 6 is a perspective view showing a protection cover for a bent portion of a refrigerant pipe for an air conditioner according to another embodiment of the present invention.

FIG. 7 is a front view showing a protection cover for a bent portion of the refrigerant pipe for the air conditioner of FIG. 6;

FIG. 8 is a perspective view showing a protection cover for a bent portion of a refrigerant pipe for an air conditioner according to still another embodiment of the present invention.

9 is a front view showing a protection cover for a bent portion of the refrigerant pipe for the air conditioner of FIG. 8;

FIG. 10 is a front view showing a protective cover for a refrigerant pipe provided on an outer wall surface of a house.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bent frame body 11, 21 Hollow frame part 12, 22 Overlap part 16 Long hole 16a Engagement concave part 26 Engagement claw 26a Engagement protrusion 31 Hinge 51 Refrigerant pipe 52 Outer wall surface

Claims (2)

[Claims] 1. A protection cover for an air-conditioner refrigerant pipe bent portion, which is attached to a wall surface of a building and protects a refrigerant pipe disposed along the wall surface at a bent portion thereof, wherein the cover covers the refrigerant pipe. The two hollow frame portions are connected only by a part of the peripheral wall or only by a part of a flange for attaching to the wall surface, and except for the part, the hollow frame portions are integrally formed in a state where the ends are separated from each other. The bent frame body is formed, and the bent frame body is separated from each other in a state where the ends of both hollow frame portions are rotated so as to overlap with each other around the connected part as an axis. The two members are assembled at a bending angle of about 90 degrees due to the mutual engagement between them, and further bending around the axis causes the bending angles of both to be further bent from the assembled state of about 90 degrees. For air conditioners, characterized in that the angle can be changed Protective cover of the medium pipe bend. 2. The two hollow frame portions are connected on the inner peripheral side of the bent portion, are engaged on the outer peripheral side of the bent portion, and are assembled at a bending angle of about 90 degrees. The protective cover for a bent portion of a refrigerant pipe for an air conditioner according to claim 1.