JP3079994U - Protective cover that protects the thermal insulation covering the surface of the tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protective cover in which a connecting portion is provided with a sealing member having an adhesive force, and a desired sealing effect can be obtained even if the connecting portion is not pressed. SOLUTION: One or both members of female and male engaging portions 2 and 3 formed at side ends of a straight pipe cover 1 and upper and lower joining portions 5 formed at axial ends. 8
A sealing material 10 or 12 made of butyl rubber or a material similar thereto is stuck to one or both members. A tape 1 is applied to the surfaces of the sealing materials 10 and 12.
Attach 1,13.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a protective cover for protecting a heat insulating material covering a surface of a pipe for supplying a coolant or hot water.

[0002]

[Prior art]

 As a protective cover for protecting the heat insulating material covering the pipe for supplying the refrigerant or the hot water, a special cover adapted to the straight pipe portion and the bent portion is used. Among these protective covers, the cover used for the straight pipe part is formed to have a fixed length and is connected in the axial direction. For this reason, there is a connection part for each cover.Therefore, there is a case where each connection part, including the cover used for the bent part, is sealed for the purpose of waterproofing. In many cases, the connection is kept. However, if water enters from the connection part, the heat insulation will be damaged and the heat insulation effect will be reduced, so it is advisable to provide a waterproof seal structure at the connection part of the protective cover.

It is known from Japanese Utility Model Laid-Open Publication No. Sho 55-84391 to provide a sealing structure for waterproofing at a connection portion of a protective cover of this kind. However, the above-mentioned prior art uses a hollow rubber tube as a sealing member, and seals the connection portion by utilizing the elasticity of the rubber tube. However, since the rubber tube itself has no adhesive force, the cover of the cover is not provided. There is a problem that a sufficient sealing effect cannot be exerted unless the connection portion is attached in a press-contact state at the time of connection.

[0004]

[Problems to be solved by the invention]

 An object of the present invention is to provide a protective cover in which a sealing member provided at a connecting portion has an adhesive force, and a desired sealing effect can be obtained even if the connecting portion is not pressed.

[0005]

[Means for Solving the Problems]

 A first solution is that the protective cover is a straight pipe cover, which is formed on one or both members of the female and male engaging portions formed on the side end of the cover and on the axial end. It is characterized in that butyl rubber or a sealing material of the same material is adhered to one or both members of the upper and lower joints. A second solution is that the protective cover is a bent tube cover, and when viewed from the front of the elbow body, seals made of butyl rubber or a material similar thereto are provided on the portions from the insides of both ends of the elbow body to the fastening plate. It is characterized by being stuck. A third aspect of the invention is characterized in that, in the first and second aspects of the invention, a tape is attached to the surface of the sealing material.

[0006]

[Embodiment of the invention]

 1 shows a connecting portion of the straight pipe cover, FIG. 2 shows a cross section of the straight pipe cover connecting portion, FIG. 3 shows a vertical cross section of the straight pipe cover connecting portion, and FIG. 4 shows a bent pipe cover.

In FIG. 1, reference numeral 1 denotes a straight pipe cover which is formed in a cylindrical shape and has a female engaging portion 2 and a male engaging portion 3 provided at axial side ends thereof, and a surface of the heat insulating material. Each of the engaging portions 2 and 3 is open until it is mounted. The female engaging portion 2 is formed by folding a side end parallel to the axial direction into three folds, and the male engaging portion 3 is engaged with the female engaging portion 2. And a retaining projection 4 is provided.

[0008] The straight pipe cover 1 is connected in the axial direction, and a new cover 1b is connected to the upper end of the cover 1a. The upper joint portion 5 provided at the upper end portion of the cover 1 (the cover indicated by “1a” in the drawing) is formed by obliquely cutting the ends of the female engaging portion 2 and the male engaging portion 3 in the extension direction. The lower joint 8 provided at the lower end of the cover 1 (the cover indicated by “1b” in the drawing) is formed at the lower edge of the cover 1 (a cover indicated by “1b” in the drawing). A rib 9 is formed. When the lower joining portion 8 overlaps the outer joining portion 5 of the cover 1a, the cover 1a is already formed into a cylindrical shape by closing the female and male engaging portions 2 and 3. After that, it is superposed on the upper joint portion 5.

Reference numeral 10 denotes a sealing material made of soft butyl rubber or a material of the same material provided on the outer surface of the male engaging portion 3 of the straight pipe cover 1. A tape 11 that can be peeled off and pasted on the surface is applied. Reference numeral 12 denotes a sealing material provided on the inner surface of the lower joint portion 8 of the straight pipe cover 1, and is adhered over the entire peripheral surface of the cover. The sealing material 12 is of the same quality as above, and a tape 13 is applied to the sealing material 12 in this case as well. In the embodiment, the seal member 10 is provided on the male engaging portion 3 of the connecting portions of the female and male engaging portions 2 and 3. 3, and similarly, the sealing material 12 can be provided on both the upper and lower joints 5, 8.

Next, the connecting process of the straight pipe cover and the connected state will be described. First, the straight pipe cover 1 (1a) is brought into contact with the outside of the heat insulating material 21 covering the pipe 20 to be piped, and the male engaging part 3 is inserted into the female engaging part 2 together with the sealing material 10 from which the tape 11 is peeled off. It is engaged and attached to the outside of the heat insulating material 21. As shown in FIG. 2, since the seal member 10 is attached to the connecting portion formed in the straight pipe cover 1 in parallel with the axial direction, the female and male engaging portions 2 are attached by the seal material 10. , 3 are closed.

Next, a new straight pipe cover 1 (1 b) is connected to the upper end of the cylindrical straight pipe cover 1 (1 a). The lower joint 8 of the new straight pipe cover 1b is superimposed on the outer side of the upper joint 5 formed at the upper end of the already formed tubular straight pipe cover 1a. Since the tapes 11 and 13 are peeled off to engage the female engaging portion 2 and the male engaging portion 3, the straight pipe cover 1b is formed in a cylindrical shape and the straight pipe cover 1b extends in the axial direction. Is established.

In the straight pipe cover 1b, a sealing material 12 is provided in a reinforcing rib 9 formed at a lower end portion, and as shown in FIG. Since the adhesive 12 is adhered, the lateral gap between the female and male engaging portions 2 and 3 is closed by the sealing material 12.

The bent pipe cover shown in FIG. 4 is generally called an elbow cover and is attached to a bent portion of a pipe that has been piped. The bent tube cover 30 is formed by connecting a plurality of strip-shaped members having a wide central portion in a semicircular shape to form an elbow body 31, and the front and rear faces of the elbow body 31 have a ginkgo shape. A leaf-shaped fastening plate 32 is fixedly attached, and a sealing material 33 is adhered to a portion from the inside of both ends of the elbow body 31 to the fastening plate 32 when the elbow body 31 is viewed from the front. The sealing material 33 is of the same quality as that provided on the straight pipe cover 1, and is made of soft butyl rubber or a material of the same quality. Reference numeral 34 denotes a tape stuck on the sealing material 33.

The mounted state of the bent pipe cover 30 is not shown, but the straight pipe cover 1 described above is mounted on the straight pipe portion of the pipe 20 to be bent, and the bent portion bent at a right angle or an arbitrary angle is provided. The bent tube cover 30 is attached to the helmet. In the bent tube cover 30 attached to the bent portion of the pipe, the sealing material 33 closes a gap between the connecting portion between the straight tube cover and the bent tube cover.

[0015]

[Effect of the invention]

 In the present invention, since a seal member is provided at the connection part in both the straight pipe cover and the bent pipe cover for protecting the heat insulating material covering the surface of the pipe, the connection of the protective cover is made. All the gaps that occur can be closed by the seal member, and the butyl rubber used for the seal member has an adhesive force, so that the closed state of the member can be maintained without bringing the connection portion into a pressed state. The desired sealing effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a connecting portion when connecting a straight pipe cover.

FIG. 2 is a cross-sectional view of a connecting portion to which a straight pipe cover is connected.

FIG. 3 is a longitudinal sectional view of a connecting portion to which a straight pipe cover is connected.

FIG. 4 is a perspective view showing a bent tube cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Straight pipe cover 2 Female type engaging part 3 Male type engaging part 4 Retaining stopper 5 Upper joint part 6 Sloped part 7 Sloped part 8 Lower joint part 9 Reinforcement rib 10 Seal material 11 Tape 12 Seal material 13 Tape Reference Signs List 20 pipe 21 heat insulating material 30 bent pipe cover 31 elbow trunk 32 fastening plate 33 sealing material 34 tape

Claims (3)

[Utility model registration claims] The protection cover is a straight pipe cover, and one or both members of female and male engagement portions (2, 3) formed at side end portions of the cover and an axial end portion. The surface of the pipe is characterized in that butyl rubber or a sealing material (10, 12) of the same material is adhered to one or both members of the upper and lower joints (5, 8) formed in the above. Protective cover to protect heat insulation. 2. The protective cover is a bent tube cover, and when viewed from the front of the elbow body (31), butyl rubber or a butyl rubber is applied to a portion extending from the inside of both ends of the elbow body (31) to the fastening plate (32). A protective cover for protecting a heat insulating material covering a surface of a pipe, wherein a sealing material (33) made of the same material is adhered. 3. The tube according to claim 1, wherein the sealing material (10, 12, 33) has a tape (11, 13, 34) attached to its surface. Protective cover that protects the covered insulation.