JPH09303677A - Insulation cover fitting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit an insulation cover on a tubular body. SOLUTION: A cylindrical insulation cover 11 is made of a foam synthetic resin, is divisible into plural cover bodies 12 and 13, and sheathes the outer periphery of a tubular body 14 for insulating for its heat or coldness. The outer surfaces of the respective plural cover bodies are coated by a metal, plastic or inorganic outer jacket 17 or painting, and are clamped with a metal clamp 16 with the plural cover bodies being integrated. The metal clamp is composed of a band body and a screw means 19. The band body comprises a curved part 18a formed in a ring shape of an inner diameter conforming to the outer surface of the cover body, and a pair of clamp parts 18b formed by the both ends of the curved part bent outward and having respectively insertion holes through which a bolt 19a is inserted. The metal clamp 16 may be selectively composed of a band body and a nut or locking frame, or a buckle and a band.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention covers a pipe body such as a water pipe in a cold region, or a pipe body such as a boiler piped in a factory or the like, and heat-insulates them to keep them warm or cool. Regarding mounting structure. More specifically, the present invention relates to a mounting structure of a heat insulating cover made of a tubular foam synthetic resin that can be divided into a plurality of cover bodies and encloses the outer periphery of the tubular body in a combined state.

[0002]

2. Description of the Related Art Generally, water pipes such as water pipes in cold regions or boilers installed in factories are subject to dew condensation due to external water vapor, etc. A heat insulating cover is provided to prevent this. This heat insulating cover is formed by enclosing a tubular body made of a foamed synthetic resin such as polystyrene foam in a tubular body. With this heat insulating cover, the fluid flowing inside the pipe can be kept warm or cold, and in a water pipe or the like, freezing in winter can be prevented without transmitting the outside air temperature to the pipe.

Conventionally, such a heat insulating cover is divided into a plurality of cover bodies in consideration of the mountability to the tubular body, and in the combined state, the outer periphery of the tubular body is covered to keep the tubular body warm or cool. It is like this. To attach such a heat-insulating cover to the pipe body, in a state in which the pipe body is covered with the heat-insulating cover, a moisture-proof sheet such as vinyl chloride is spirally wound on the outer surface of the heat-insulating cover to form a moisture-proof layer on the outer surface of the heat-insulating cover. Further, the outer surface is covered with aluminum glass tape to fix the moisture-proof layer to the outer surface of the heat insulating cover. By providing the moisture-proof layer in this way, dew condensation due to external water vapor or the like on the pipe body is prevented, and the pipe body is kept warm or cold.

[0004]

However, forming a moisture-proof layer on the outer surface of a conventional heat-insulating cover and coating the outer surface with an aluminum glass tape takes a lot of time and effort to attach the heat-insulating cover to the pipe body. There is a defect. In order to solve this point, it may be possible not to provide a moisture-proof layer, but there is a problem that the protective function of the heat insulating cover against the corrosion resistance of the tubular body is lowered. An object of the present invention is to provide a heat insulating cover mounting structure that can easily mount a heat insulating cover on a pipe without lowering the protection function against corrosion resistance.

[0005]

The invention according to claim 1 is
As shown in FIG. 1, a heat insulating cover made of a tubular foam synthetic resin, which can be divided into a plurality of cover bodies 12 and 13 and which encloses the outer periphery of the tube body 14 to keep the tube body 14 warm or cool, is attached. It is a structural improvement. The characteristic configuration is that the outer surface of each of the plurality of cover bodies 12 and 13 is covered with a metal, plastic or inorganic outer skin 17 or a coating film,
The plurality of cover bodies 12 and 13 are in a state where they are fastened together by metal fasteners 16, 26, 36 and 46 from their outer surfaces in a state where they are united. The cover bodies 12, 13 are covered with a metal, plastic, or inorganic outer skin 17 to improve the protection function against corrosion resistance of the heat insulating cover, and the metal fasteners 16, 26, 36, 46 are used to cover the cover bodies 12, 13.
The heat insulating cover 11 is surely attached to the pipe body 14 by tightening.

The heat insulating cover is preferably divided into two or three cover bodies. In the case of a large diameter heat insulating cover, it may be divided into three or four or more cover bodies. Examples of the synthetic foam resin include polystyrene foam, rigid urethane foam, polyethylene foam, and phenol foam, and polystyrene foam is particularly preferable. The outer cover may be a film, a sheet or a molded body, and the film-shaped outer cover may be a plastic film in which aluminum is vapor-deposited in addition to the plastic film.
Examples of the sheet-like outer cover include a metal plate or a plastic plate having a thickness capable of covering the outer surface of the cover body, or an inorganic substance such as glass cloth.

Examples of the metal skin include stainless steel or aluminum alloy, and examples of the plastic skin include a vinyl chloride skin. If the outer skin is a stainless steel plate, its thickness is preferably 0.1-0.3 mm, and if it is an aluminum alloy plate, its thickness is 0.2-.
0.5 mm is preferred. Further, if the outer skin is made of plastic, it is preferable to mold it in advance in a shape in which the cover body is united with a mold. It is preferable to use an adhesive for the coating with the outer cover. Examples of the adhesive used here include hot-melt type, epoxy resin type, vinyl acetate type, and the like, and if the cover bodies 12 and 13 are made of polystyrene foam, they are bonded. The agent is preferably a hot melt type.
Further, at the time of adhesion, it is preferable to apply the adhesive in the form of a double-sided adhesive tape to the outer skin in advance. By coating the outer surface of the cover body with a coating film, the appearance can be improved. In particular, if a color such as silver that is not preferred by wild birds is used, it is possible to prevent the wild birds from damaging the heat insulating cover made of foamed synthetic resin.

The invention according to claim 2 is the invention according to claim 1, wherein, as shown in FIG.
The band main body 18 is composed of the band main body 18 and the screw means 19, and the band main body 18 has a ring-shaped curved portion 18a having an inner diameter corresponding to the outer surfaces of the cover bodies 12 and 13, and both ends of the curved portion 18a are bent outward. Formed by bolt 19a
Is provided with a pair of tightening portions 18b and 18b having through holes 18c and 18c, respectively, and the screw means 19 tightens the respective tightening portions 18b and 18b to each other through the respective through holes 18c and 18c. As a result, the curved portion 18a is a heat insulating cover mounting structure that is fastened with the cover bodies 12 and 13 being united. By tightening the cover bodies 12 and 13 with the band body 18 and the screw means 19, the tube body 14 can be more easily compared with the case where the outer surface of the heat insulating cover is covered with aluminum glass tape and the cover body is fixed.
A heat insulating cover 11 can be attached to the.

The invention according to claim 3 is the invention according to claim 1, wherein, as shown in FIG.
The band main body 28 and the nut 29 are formed. The band main body 28 has a ring-shaped curved portion 28a having an inner diameter corresponding to the outer surfaces of the cover bodies 12 and 13, and the curved portion 28.
A pair of male screw parts 28 in which the nut 29 can be screwed in a state in which both ends of a are bent outward and are joined together.
b, 28b, and the nut 29 has male screw portions 18b, 1
The curved portion 28 a is screwed into the cover body 1 to make the cover body 1
This is a structure for attaching a heat insulating cover that is fastened in a state where the two and 13 are united. By tightening the cover bodies 12 and 13 with the band body 28 and the nut 29, the number of parts can be reduced, and the heat insulating cover 11 can be attached to the tube body 14 more easily as compared with the case of tightening with screw means. You can

The invention according to claim 4 is the invention according to claim 1, wherein, as shown in FIG.
The band main body 38 is composed of a band main body 38 and a locking frame 39, and the band main body 38 is formed by bending a ring-shaped curved portion 38a having an inner diameter corresponding to the outer surface of the cover body and both ends of the curved portion 38a outward. A plurality of saw teeth 38c, 3 on the surface
And a pair of locking portions 38b and 38b having 8c, and the bending portion 38a is fitted into the pair of locking portions 38b and 38b and locked to the saw teeth 38c and 38c, so that the curved portion 38a is covered. It is a mounting structure of a heat insulating cover which is fastened in a state where 13 are united. By fastening the cover bodies 12 and 13 by the band body 38 and the locking frame 39, the locking frame 3
The cover bodies 12 and 13 can be attached to the tube body 14 by a simple operation of inserting the cover body 9.

The invention according to claim 5 is the invention according to claim 1, wherein, as shown in FIG.
A plurality of holes 47a, 47b, 47 formed side by side in parallel
buckle 47 having c and 47d and a plurality of holes 4 at one end
7a, 47b, 47c, 47d and a band 48 having a length equal to or greater than the outer circumference of the cover bodies 12, 13 and fixed by inserting one or more holes. The band 48 is formed by going around the outer surface of 13 and inserting the other end into one or two or more holes 47a, 47b, 47c, 47d and locking the buckle 47.
Is a mounting structure of a heat insulating cover which is fastened in a state where the cover bodies 12 and 13 are united. By fastening the cover bodies 12 and 13 with the buckle 47 and the band 48, the heat insulating cover 11 having a plurality of shapes can be attached to the tubular body 14 with one type of metal fastener regardless of the outer diameter of the cover bodies 12 and 13. Can be installed on.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIGS. 1 and 3,
The heat insulating cover 11 in the present embodiment includes a pair of cover bodies 12,
A pair of cover bodies 12, 13 has a cross-sectional shape obtained by dividing a tubular body from the center, and by fitting them together, a foamed synthetic resin that covers the outer surface of the tubular body 14 and keeps the tubular body 14 warm. This is a heat insulating cover 11. Since the pair of cover bodies 12 and 13 are formed symmetrically, one cover body 12 will be described below as a representative.

As shown in FIG. 3, a step portion 12a is formed on the abutting portion of the cover body 12, and the step portion 12a is formed on the abutting surface of the other cover body 13 (see FIG. 1). ) With each other, it is possible to prevent invasion of water vapor and the like from the outside. Further, stepped portions 12c are also formed at both ends of the cover body 12, and when a plurality of heat insulating covers 11 are encased in series in the same pipe body 14, the stepped portion of the other heat insulating cover (not shown) has the other small diameter stepped portion. The heat insulating cover 11 can be continuously provided with the heat insulating cover 11 by being inserted into the large-diameter step portion 12c of the heat insulating cover.

The outer surface of each of the pair of cover bodies 12 and 13 is individually covered with an outer skin 17. The outer skin 17 in this embodiment is made of metal, and the metal outer skin 17 is made of stainless steel having a thickness of 0.2 mm. Specifically, the metal outer skin 17 has a semi-cylindrical portion 17a in which the plate material is processed into a semicircular shape corresponding to the outer surface of the cover body 12, and the semi-cylindrical portion 17a.
And an extension portion 17b slightly extended from one end of the.
The metal outer skin 17 is adhered to the outer surface of the cover body 12 by bonding the inner surface of the semi-cylindrical portion 17a with a hot-melt adhesive so as to cover the outer surface of the cover body 12, and applying the adhesive to the inner surface of the extension portion 17b. In this state, the release paper 17c is attached to the adhesive application surface.

As shown in FIG. 1, a plurality of cover bodies 12,
13 covers the tube body 14 and combines them, and the cover bodies 12, 13
When they are combined, they are fastened from the outer surface by metal fasteners. As shown in detail in FIG. 2, the metal fastener 16 in this embodiment is composed of a band body 18 and screw means 19. The band body 18 includes a curved portion 18a and a pair of tightening portions 18b and 18b, and the curved portion 18a is formed in a ring shape having an inner diameter corresponding to the outer surface of the cover body 12. The fastening portion 18b is formed by bending both ends of the curved portion 18a outward, and the insertion hole 1 through which the bolt 19a can be inserted.
8c are provided respectively. The band body 18 is integrally formed by pressing. Therefore, in this metallic fastener 16, the bolts 19a, which are the screw means 19, are inserted through the respective insertion holes 18c and the nuts 19b are tightened, so that the inner diameter of the curved portion 18a is reduced.

As shown in FIG. 1, the heat insulating cover 11 thus constructed is attached to the tube body 14 by fitting the respective cover bodies 12 and 13 from the outside of the tube body 14 for keeping heat. The outer surface of 14 is encapsulated. When combining the pair of cover bodies 12, each cover body 1
An adhesive made of a hot melt adhesive is applied to the step portions 12a and 13a of the cover bodies 2 and 13 to cover the respective cover bodies 12 and 13.
While maintaining the united state, it is possible to reliably prevent the invasion of water vapor and the like from the butted surfaces.

When the bonding of the pair of cover bodies 12 and 13 is completed, the extension portion 1 of the respective metal outer skins 17 and 17 is completed.
Release paper 17c, 17c attached to 7b, 17b
After peeling off (FIG. 3), the extension 17b of the other cover body 13, 12 is overlapped with one end edge of the metal outer skin 17 of the cover body 13, 12.
Glue. Next, the cover body 1 in which the band main body 18a is united is pushed open by the elasticity of the bending section 18a between the tightening portions 18b and 18b on the outer surface of the united cover bodies 12 and 13.
The bolts 19a, which are screw means, are inserted into the through holes 18c, and the nuts 19b are tightened. As a result, the inner diameter of the curved portion 18a is reduced, and the curved portion 18a is covered by the cover body 1.
Tighten 2 and 13 in a state where they are united from the outer surface.

FIG. 4 shows a second embodiment of the present invention.
In FIG. 4, the same reference numerals as those used in the above-described embodiment denote the same parts. The characteristic configuration of this aspect is that the metal fastener 26
Is composed of the band body 28 and the nut 29. The band body 28 includes a curved portion 28a and a pair of male screw portions 28b, 28b, and the curved portion 28a is the cover body 1.
It is formed in a ring shape having an inner diameter corresponding to the outer surface of 2. The male screw portions 28b, 28b are formed by bending both ends of the curved portion 28a outward, and a screw thread is formed so that the nut 29 can be screwed in a state in which both are fitted. The band body 28 is integrally formed by pressing. Therefore, in the metal fastener 26, the nut 29 is screwed into the male screw portions 28b, 28b, so that the bending portion 2
The inner diameter of 8a is reduced. The heat insulating cover 11 thus configured is attached to the tube body 14 by attaching the male screw portions 28b, 2 to the outer surfaces of the cover bodies 12, 13, respectively.
8b is pushed open by the elasticity of the curved portion 28a, the band body 28a is fitted to the combined cover bodies 12 and 13 and restored by the elasticity again, and the nut 29 is screwed into the male screw portions 28b and 28b. To do. Thereby, the curved portion 2
The inner diameter of 8a is reduced so that the curved portion 28a is covered by the cover body 1.
Tighten 2 and 13 in a state where they are united from the outer surface. Since the other aspects are the same as the above-described aspect, the repeated description will be omitted.

FIG. 5 shows a third embodiment of the present invention.
In FIG. 5, the same reference numerals as those used in the above embodiment denote the same parts. The characteristic configuration of this mode is that the metal fastener 36
Is composed of the band body 38 and the locking frame 29. The band main body 38 includes a curved portion 38a and a pair of locking portions 38b and 38b, and the curved portion 38a is the cover body 12.
Is formed in a ring shape having an inner diameter corresponding to the outer surface of the.
The locking portion 38b is formed by bending both ends of the curved portion 38a outward, and a plurality of saw teeth 38c facing each other are formed on each surface. The band body 38 is integrally formed by pressing. The locking frame 29 is fitted into the respective locking portions 38b and 38b so that the saw teeth 38
A fitting hole 39a that is locked to c is formed. Therefore, in the metal fastener 36, the fitting hole 39a is formed in the pair of locking portions 38a.
It is configured such that the inner diameter of the curved portion 38a is reduced by being fitted into b and 38b. The heat insulating cover 11 configured as described above is attached to the pipe body 14 by pushing the outer surfaces of the combined cover bodies 12 and 13 between the engaging portions 38b and 38b by the elasticity of the bending portion 38a to open the band body. Three
8a is fitted to the cover bodies 12 and 13 which are united, and the locking frame 3
By fitting 9 into the respective locking portions 38b, 38b, the inner diameter of the curved portion 38a is reduced. As a result, the curved portion 38a fastens the cover bodies 12 and 13 in a state where the cover bodies 12 and 13 are united from the outer surfaces thereof. Since the other aspects are the same as the above-described aspect, the repeated description will be omitted.

6 to 9 show a fourth embodiment of the present invention. In the figure, the same reference numerals as those used in the above-mentioned embodiments indicate the same parts. The characteristic configuration of this aspect is that the metal fastener 4
6 is composed of a buckle 47 and a band 48, and the buckle 47 has four holes 47a, 47b, 47c, 4 arranged in parallel.
7d is a flat plate formed side by side. One end of the band 48 is inserted through the three holes of the buckle 47 and fixed, and has a length equal to or longer than the outer circumference of the cover body. As shown in FIG. 7, the one end of the band 48 is fixed to the buckle 47 by three holes 47 a, 47 from the edge of the buckle 47.
It is carried out by sequentially passing through b and 47c, folding back from the state of being inserted into the third hole 47c, re-inserting into the first hole 47a, and folding back at the edge of the buckle 47.

The heat insulating cover 11 thus constructed is attached to the tube body 14 by wrapping the band 48 around the outer surface of the combined cover bodies 12 and 13 and the other end of the buckle 47. Insert into the hole. As a result, the band 48 forms an arc, and the cover bodies 12, 13 that are united by the arc are tightened, and the other end of the band 48 is locked in the hole of the buckle 47, so that the band 48 unites the cover bodies 12, 13. Tighten in the condition. Band 48
The insertion of the other end of the band into the hole is performed in this order from the third hole in which one end of the band is locked to the first hole as shown in FIG.
c, 37b, 37a, and as shown by the arrow in the figure, pulling the other end reduces the inner diameter of the arc formed by the band 48 and tightens the cover bodies 12, 13 in a state of being united from their outer surfaces. . To lock the other end of the band 48 into the hole, as shown in FIG. 9, the other end inserted into the first hole 37a is folded back, inserted into the third hole 37c again, and folded back at the edge of the buckle 47. . The other end of the folded band is inserted and fixed in the fourth hole 37d.
Since the other aspects are the same as the above-described aspect, the repeated description will be omitted.

[0022]

As described above, according to the present invention, since the outer surface of each of the plurality of cover bodies is covered with the metal or plastic or inorganic skin or coating, the heat insulating cover is protected against corrosion resistance. The function is improved.
In addition, since the plurality of cover bodies are united to each other and the outer surface of the cover bodies is fastened with metal fasteners, the heat insulating cover is securely attached to the pipe body. Therefore, the heat insulating cover can be attached to the pipe body without lowering the protection function against corrosion resistance. Further, by forming the metal fastener with the band body and the screw means, the nut or the locking frame, the heat insulating cover can be easily attached to the pipe body. Further, by forming the metal fastener with the buckle and the band, it is possible to attach the heat insulating cover having a plurality of shapes to the pipe body by one kind of metal fastener regardless of the outer diameter shape of the cover body.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a heat insulating cover mounting structure of the present invention.

FIG. 2 is a perspective view of the metal fastener.

FIG. 3 is an assembled perspective view of the heat insulating cover.

FIG. 4 is a perspective view corresponding to FIG. 2 showing a second example of the present invention.

FIG. 5 is a perspective view corresponding to FIG. 2 showing a third example of the present invention.

FIG. 6 is a perspective view corresponding to FIG. 2 showing a fourth example of the present invention.

FIG. 7 is a view showing a state in which one end of the band is fixed to a buckle.

FIG. 8 is a view showing a state in which the other end of the band is inserted into a buckle.

FIG. 9 is a view showing a state in which the other end of the band is locked to a buckle.

[Explanation of symbols]

 11 Heat Insulation Cover 12, 13 Cover Body 14 Tubular Body 17 Outer Skin 16, 26, 36, 46 Metal Fastener 18, 28, 38 Band Body 18a, 28a, 38a Curved Part 18b Tightening Part 18c Insertion Hole 19 Screw Means 19a Bolt 28b Male screw part 29 Nut 38b Locking part 38c Saw tooth 39 Locking frame 47 Buckle 47a, 47b, 47c, 47d Hole 48 Band

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Takasaki 614 Inabago, Oyama City, Tochigi Prefecture 1 Daiya Chemical Co., Ltd.

Claims (5)

[Claims] 1. A tubular foam synthetic resin which can be divided into a plurality of cover bodies (12, 13) and encloses the outer periphery of the pipe body (14) to keep the pipe body (14) warm or cool. In the attachment structure of the heat insulating cover, the outer surface of each of the plurality of cover bodies (12, 13) is covered with a metal, plastic or inorganic outer skin (27) or a coating film, and the plurality of cover bodies (12 , 13) are joined together, and are fastened from the outer surface by metal fasteners (16.26.36.46), which is a heat insulating cover mounting structure. 2. The metal fastener (16) comprises a band body (18) and screw means (19), the band body (18) having an inner diameter corresponding to the outer surface of the cover body (12, 13). A bent portion (18a) formed in a ring shape and a bolt formed by bending both ends of the bent portion (18a) outward.
(19a) is provided with a pair of tightening portions (18b, 18b) each having an insertion hole (18c, 18c) through which the screw means (19) is inserted through each of the insertion holes (18c, 18c). The heat insulating cover mounting structure according to claim 1, wherein the bending portions (18a) are fastened together with the cover bodies (12, 13) by fastening the fastening portions (18b, 18b) to each other. 3. The metal fastener (26) comprises a band body (28) and a nut (29), the band body (28) having an inner diameter corresponding to the outer surface of the cover body (12, 13). -Shaped curved portion (28a), a pair of male screw portions (22) formed by bending both ends of the curved portion (28a) outward and the nut (29) can be screwed in a state in which both are fitted ( 28b, 28b), and the nut (29) is screwed onto the male screw portion (28b, 28b) so that the curved portion (28a) is tightened with the cover body (12, 13) united. The heat insulating cover mounting structure according to claim 1, which is attached. 4. The metal fastener (36) comprises a band body (38) and a locking frame (39), and the band body (38) is formed in a ring shape having an inner diameter corresponding to the outer surface of the cover body. Curved portion (38a) and the curved portion (38a
a) Multiple edges are formed by bending both ends outwards.
(38c, 38c) with a pair of locking portions (38b, 38b), the locking frame (39) is fitted into the pair of locking portions (38b, 38b) the saw teeth (38c, 38c). ) To the curved portion
The heat insulating cover mounting structure according to claim 1, wherein the cover body (12, 13) is fastened with the cover body (12, 13) combined. 5. The metal fastener (46) has a buckle (4) having a plurality of holes (47a, 47b, 47c, 47d) formed in parallel.
7) and one end thereof is fixed by inserting one or more holes of the plurality of holes (47a, 47b, 47c, 47d) or two or more of them and the cover body (1
2, 13) and a band (48) having a length equal to or more than the outer circumference of the cover body (12, 13), and the other end has one or two or more holes. (47a, 47b, 47c, 47d)
The heat insulating cover mounting structure according to claim 1, wherein the band (48) is fastened in a state where the cover bodies (12, 13) are united by being inserted into the cover and locked to the buckle (47).