JP6989961B2 - Plumbing cover - Google Patents

Description

The present invention relates to a pipe cover attached to a bent portion of the pipe and covering the bent portion among the covers attached to the pipe so as to cover the outer surface of the heat insulating material in the pipe covered with the heat insulating material.

There are those shown in Patent Documents 1 and 2 as a cover attached to a bent portion in a pipe covered with a heat insulating material, typically a pipe for air conditioning or temperature control, and covering the bent portion.

Patent Documents 1 and 2 are separated to the left and right inside the bending of the elbow cover. An engaging hole is formed in one of the separation points, and a tongue piece that is inserted into and engaged with the engaging hole is formed in the other, and the bent portion of the pipe is covered with an elbow cover. By inserting and engaging the tongue piece into the engagement hole, the bent part of the pipe is exteriorized.

Jitsukaisho 61-173894 Jitsukaisho 63-115990

The outer diameter of the bent portion of the pipe changes depending on the thickness of the heat insulating material that covers the pipe. In Patent Documents 1 and 2, the insertion / engagement position of the tongue piece into the engagement hole is different. Since it is variable, it can follow this change. However, the tongue piece was exposed inside the flexion of the elbow cover regardless of the amount of the tongue piece inserted into the engagement hole.

The main problem to be solved by the present invention is to make the makeup of the bent portion by the cover for the bent portion of this type of pipe more effective.

In order to achieve the above object, in the present invention, the pipe cover is a synthetic resin cover attached to the bent portion of the pipe covered with the heat insulating material to cover the bent portion.
It is configured to form an elbow by fastening the male side extension part and the female side extension part located inside the bending part of the bending part.
On the female side extension,
A tunnel-shaped insertion passage that allows the male side extension portion to be inserted is provided with the insertion passage forming plate attached to the inner surface side of the female side extension portion to the inner surface of the female side extension portion and the insertion passage. It is prepared between the forming plate and
At the entrance of the insertion passage located on the terminal side of the female side extension portion, the male side extension portion was formed in a multi-stage shape at an arbitrary insertion position of the male side extension portion into the insertion passage. The female side engaging claw that is engaged with any one of the male side engaging claws is formed by a part of the insertion passage forming plate, and is also formed .
It is assumed that the width of the insertion passage gradually decreases as it approaches the exit side of the insertion passage .

The outer diameter of the bent portion of the pipe varies depending on the thickness of the heat insulating material that covers the pipe. According to such a piping cover, the amount of insertion of the male-side extension portion into the insertion passage, that is, the male-side engagement that is engaged with the female-side engagement claw among the plurality of male-side engagement claws. By changing the claws, the diameter of the elbow-shaped piping cover can be adjusted to the outer diameter of the bent portion within a certain range. Since the male side extension part and the female side extension part are fastened by inserting the male side extension part into the insertion passage formed on the inner surface side of the female side extension part, the male side extension part is fastened. Is obscured by a female extension. As a result, the heat insulating material can be effectively made up by the pipe cover at the bent portion.

Further, it is possible to form a female side engaging claw engaged with any one of the male side engaging claws at the outlet of the insertion passage by a part of the insertion passage forming plate. It is regarded as one of the aspects of the invention.

According to the present invention, it is possible to make the makeup of the bent portion by covering the bent portion of this type of pipe more effective.

FIG. 1 is a perspective configuration view of a pipe cover according to an embodiment of the present invention, and shows a state immediately before being attached to a bent portion of the pipe. FIG. 2 is a perspective view showing a state in which the pipe cover is attached to a bent portion of the pipe. FIG. 3 is a cross-sectional view of a main part in the state of FIG. FIG. 4 is a side view of the piping cover. FIG. 5 is a perspective configuration view of a main part of the piping cover. FIG. 6 is a cross-sectional configuration view of a main part of the piping cover. FIG. 7 is a cross-sectional configuration view of the pipe cover, showing a state in which the male side extension portion is engaged with the female side extension portion. FIG. 8 is a perspective configuration view of a main part of the piping cover, and shows a state in which the male side extension portion is engaged with the female side extension portion. FIG. 7 is a cross-sectional configuration view of a main part of the pipe cover, showing a state in which the male side extension portion is engaged with the female side extension portion.

Hereinafter, a typical embodiment of the present invention will be described with reference to FIGS. 1 to 9. The pipe cover C according to this embodiment is the cover C, C'of the pipe P, which is attached to the pipe P so as to cover the outer surface of the heat insulating material I in the pipe P covered with the heat insulating material I. It is attached to the bent portion Pa and covers the bent portion Pa.

That is, as shown in FIGS. 1 and 2, the pipe cover C according to this embodiment is a pipe covered with the heat insulating material I together with the pipe cover C'that covers the straight portion Pb of the pipe P. It covers the outer surface of P.

The piping cover C is typically configured by processing a flame-retardant synthetic resin sheet.

Further, the pipe cover C is configured to have an elbow shape when attached to the pipe P. That is, the piping cover C exhibits an L-shaped tubular shape in a side view in the mounted state, and is located inside the outer peripheral portion 1 and the outer peripheral portion 1 curved along a part of the arc of a virtual circle. It has an inner peripheral portion 2 to be formed, and left and right intermediate portions 3 located between the two and covering the side portion of the bent portion Pa of the pipe P.

Further, the piping cover C is separated to the left and right at the inner peripheral portion 2 located on the bent inner Pd of the bent portion Pa in the mounted state. One of the separated inner peripheral portions 2 is the male side extending portion 4, and the other of the separated inner peripheral portions 2 is the female side extending portion 5. Then, the male side extension portion 4 and the female side extension portion 5 are fastened together to form an elbow shape.

Specifically, the piping cover C is elastically deformed so as to widen between the male side extending portion 4 and the female side extending portion 5 of the piping cover C, and the bending outside of the bending portion Pa of the piping P is performed. The piping cover C is put on the bent portion Pa so that the outer peripheral portion 1 is in contact with Pc and the inner peripheral portion 2 is located on the bent inner Pd. Specifically, the pipe cover C is elastically deformed in a direction to increase the diameter of the pipe cover C from the state where the pipe cover C is covered on the bent portion Pa as described above, and the female side extension portion 5 is provided. The male side extension portion 4 is inserted into the insertion passage 5b described later, and then the male side extension portion 4 is inserted into the insertion passage 5b while narrowing the diameter of the piping cover C. The side extension portion 4 and the female side extension portion 5 are engaged and fastened with each other.

The male-side extending portion 4 is composed of a base portion 4a that is a part of the inner peripheral portion 2 and a tongue piece 4c that extends from the base portion 4a. The base portion 4a is formed so as to continue to the intermediate portion 3 of the piping cover C that covers the side portion of the bent portion Pa, and is configured to gradually reduce the width as it approaches the terminal 4'. The tongue piece 4c has a band shape whose width is smaller than the width of the end 4b of the base 4a, and one end thereof is integrated with the center of the end 4b of the base 4a and extends from the end 4b. The other end of the tongue piece 4c is the terminal 4'of the male side extension portion 4.

A plurality of male side engaging claws 4e are formed on the inner surface 4d (the surface on the side in contact with the heat insulating material I) of the male side extending portion 4 so as to form a multi-step shape in the extending direction of the male side extending portion 4. Has been done. In the illustrated example, a male side engaging claw 4e forming a rib shape along the width direction of the substrate 4f is formed on one surface of the elongated substrate 4f with the male side engaging claw 4e adjacent to each other in the length direction of the substrate 4f. The male side extension portion is formed by fastening a plurality of synthetic resin engaging claw constituent members 4g formed at intervals to the inner surface 4d of the tongue piece 4c constituting the male side extension portion 4. A plurality of male side engaging claws 4e are formed on the inner surface 4d of 4 so as to form a multi-step shape in the extending direction of the male side extending portion 4. In the illustrated example, the engaging claw component 4g has a width substantially equal to that of the tongue piece 4c, and inside the tongue piece 4c, the substrate 4f does not protrude from the tongue piece 4c. It is stopped along. Further, the engaging claw component 4g positions one end of the substrate 4f at a position spaced apart from the end of the tongue piece 4c as the terminal 4', and the substrate 4f is located at the end 4b of the base 6. It is fastened to the inner surface 4d of the male extending portion 4 so as to position the other end. Such fastening is typically performed by adhering or welding the other surface of the substrate 4f of the engaging claw component 4g to the inner surface 4d of the male extending portion 4. In the illustrated example, the end of the tongue piece 4c as the terminal 4'is bent slightly inward on one end side of the substrate 4f, and the female side extending portion is formed by the bent portion 4h formed in this way. The tongue piece 4c is easily inserted into the insertion passage 5b, which will be described later, from the entrance side thereof.

The female-side extension portion 5 has an insertion passage 5b through which the tongue piece 4c of the male-side extension portion 4 can be inserted into the base portion 5a which is a part of the inner peripheral portion 2. The insertion passage forming plate 5d attached to the inner surface 5c side of the base portion 5a constituting the 5 is provided between the inner surface 5c of the base portion 5a of the female side extension portion 5 and the insertion passage forming plate 5d. Become. The base portion 5a is formed so as to continue to the intermediate portion 3 of the piping cover C that covers the side portion of the bent portion Pa, and is configured to gradually reduce the width as it approaches the terminal 5'.

The insertion passage 5b is a tunnel provided with a terminal 5'of the female side extension portion 5, that is, an entrance 5f located on the terminal 5e side of the base portion 5a and an outlet 5g located on the intermediate portion 3 side. It is in a state.

In the illustrated example, the insertion passage forming plate 5d is made of a synthetic resin sheet formed into a channel shape. The insertion passage forming plate 5d is typically composed of the same synthetic resin sheet as the synthetic resin sheet constituting the piping cover C. The insertion passage forming plate 5d includes a central portion 5h, left and right selvage portions 5i, and a step portion 5j between the central portion 5h and the selvage portion 5i. By anchoring the left and right ear portions 5i to the inner surface of the base portion 5a as the inner surface 5c of the female side extension portion 5, the inner surface and the central portion of the base portion 5a as the inner surface 5c of the female side extension portion 5 are respectively attached. The insertion passage 5b is formed between the 5h and the insertion passage 5b. Such welding is typically done by welding.

In the illustrated example, the end portion of the insertion passage forming plate 5d constituting the entrance 5f is located on the intermediate portion 3 side of the end portion 5e of the base portion 5a as the terminal 5'of the female side extension portion 5. A gap of 5k is formed between this end and the terminal 5'. In the illustrated example, this interval 5k portion is bent so as to form a top with a bending line substantially parallel to the end 5e of the base 5a as the terminal 5'of the female extending portion 5. A finger hook portion of 5 m is formed by the top portion. In the illustrated example, the pipe cover C is elastically deformed in a direction to increase the diameter of the pipe cover C from the state where the pipe cover C is covered on the bent portion Pa as described above by using the finger hook portion 5 m. Therefore, it is easy to perform an operation of inserting the male side extension portion 4 into the insertion passage 5b of the female side extension portion 5.

Further, in this embodiment, the width of the insertion passage 5b gradually decreases as it approaches the outlet 5g side of the insertion passage 5b. In the illustrated example, the distance between the left and right step portions 5j of the insertion passage forming plate 5d is the widest on the entrance 5f side, and gradually decreases as it approaches the exit 5g side. Thereby, in this embodiment, the tongue piece 4c of the male side extension portion 4 can be easily inserted into the insertion passage 5b, and in the insertion completed state, the inserted tongue piece 4c is inserted into the insertion passage 5b. It can be held with less rattling.

Further, in this embodiment, the male side extension portion 4 to the insertion passage 5b is provided at the entrance 5f of the insertion passage 5b located on the terminal 5'side of the female side extension portion 5. The female side engaging claw 5n engaged with any one of the male side engaging claws 4e formed in a multi-stage shape on the male side extending portion 4 at an arbitrary insertion position is attached to the insertion passage forming plate 5d. It is formed by a part.

In the illustrated example, notches 5o are provided on the left and right sides of the central portion 5h at the end portion of the insertion passage forming plate 5d on the entrance 5f side, and a portion located between the left and right notches 5o in the central portion 5h is provided as a base portion. The female side engaging claw 5n is formed by bending and standing up toward the inner surface side of 5a. The distance between the tip of the female side engaging claw 5n and the inner surface of the base portion 5a as the inner surface 5c of the female side extension portion 5 is the thickness of the tongue piece 4c of the male side extension portion 4, that is, the male side extension. It is slightly smaller than the distance between the outer surface 4i of the protrusion 4 and the tip of the male side engaging claw 4e. As a result, the tongue piece 4c of the male side extending portion 4 can be inserted into the insertion passage 5b while elastically deforming both or one of the female side engaging claw 5n and the male side engaging claw 4e, and is inserted. The female side engaging claw 5n is attached to any one of the male side engaging claws 4e formed in a multi-stage shape on the male side extending portion 4 at the position where It is possible to engage.

Further, in this embodiment, the female side engaging claw 5p engaged with any one of the male side engaging claws 4e is attached to the outlet 5g of the insertion passage 5b, and the insertion passage forming plate is provided. It is formed by a part of 5d. In the illustrated example, at the end portion of the insertion passage forming plate 5d on the outlet 5g side, the female side engaging claw 5p is deformed so that the central portion 5h is bent toward the inner surface side of the base portion 5a and raised. Is formed. The distance between the tip of the female side engaging claw 5p and the inner surface of the base portion 5a as the inner surface 5c of the female side extending portion 5 is slightly smaller than the thickness of the tongue piece 4c of the male side extending portion 4. ing. As a result, even on the outlet 5g side of the insertion passage 5b, the female side engages with any one of the male side engagement claws 4e formed in a multi-stage shape on the male side extension portion 4 inserted through the insertion passage 5b. The claw 5p can be engaged.

The outer diameter of the bent portion Pa of the pipe P changes depending on the thickness of the heat insulating material I covering the pipe P. According to the piping cover C according to this embodiment, the amount of insertion of the male side extending portion 4 into the insertion passage 5b, that is, the female side engaging claw among the plurality of male side engaging claws 4e. By changing the male side engaging claw 4e engaged with 5n, the diameter of the elbow-shaped piping cover C can be adapted to the outer diameter of the bent portion Pa within a certain range. Since the male-side extension portion 4 and the female-side extension portion 5 are fastened by inserting the male-side extension portion 4 into the insertion passage 5b formed on the inner surface 5c side of the female-side extension portion 5. , The male side extension part 4 is covered by the female side extension part 5. Thereby, in the bent portion Pa, the heat insulating material I can be effectively made up by the pipe cover C.

As a matter of course, the present invention is not limited to the embodiments described above, but includes all embodiments that can achieve the object of the present invention.

I Insulation material P Piping Pa Bending part Pd Bending inside C cover 4 Male side extension part 4e Male side engaging claw 5 Female side extension part 5'Terminal 5b Insertion passage 5d Insertion passage forming plate 5f Entrance 5n Female side engaging claw

Claims (2)

A cover made of synthetic resin that is attached to a bent portion of a pipe covered with a heat insulating material and covers the bent portion.
It is configured to form an elbow by fastening the male side extension part and the female side extension part located inside the bending part of the bending part.
On the female side extension,
A tunnel-shaped insertion passage that allows the male side extension portion to be inserted is provided with the insertion passage forming plate attached to the inner surface side of the female side extension portion to the inner surface of the female side extension portion and the insertion passage. It is prepared between the forming plate and
At the entrance of the insertion passage located on the terminal side of the female side extension portion, the male side extension portion was formed in a multi-stage shape at an arbitrary insertion position of the male side extension portion into the insertion passage. The female side engaging claw that is engaged with any one of the male side engaging claws is formed by a part of the insertion passage forming plate, and is also formed .
A piping cover that gradually reduces the width of the insertion passage as it approaches the outlet side of the insertion passage . The first aspect of claim 1, wherein a female engaging claw engaged with any one of the male engaging claws is formed at the outlet of the insertion passage by a part of the insertion passage forming plate. Cover for piping.

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