CN2168157Y

CN2168157Y - Polyurethane insulation tube

Info

Publication number: CN2168157Y
Application number: CN 93207243
Authority: CN
Inventors: 薛赖惠珠
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-31
Filing date: 1993-03-31
Publication date: 1994-06-08
Anticipated expiration: 2003-03-31

Abstract

The utility model relates to a polyurethane thermal insulation tube, comprising an upper seat and a lower seat, wherein, inserting bars inserting into each other, an inserting groove, a junction piece and a junction groove are formed on the upper and the lower seats; the interior of the inserting groove is painted with water-proofing paste. The close contact purpose is reached by the mutual inosculation of the inserting bars and the inserting groove and the scarf joint of the junction piece and the junction groove. The utility model certainly accomplishes that outer air penetration is prevented, that the moisture produced by heat exchange effect is eliminated, and that water leakage phenomenon is prevented. Meanwhile, the area coated by waterproofing paste is only in the inserting groove, and consequently, the utility model certainly saves area coated by waterproofing paste and saves labor power and time, and accordingly, the polyurethane thermal insulation tube can reduce installation cost.

Description

Polyurethane insulation tube

The utility model relates to a kind of PU(polyurethane) thermal insulation pipe, but particularly relate to a kind of fluid-tight engagement, reduce the PU thermal insulation pipe of installation cost.

Thermal insulation pipe is employed a kind of thermoinsulation material on refrigerating and air conditioning system pipeline, cold storage warehouse, refrigerated enclosed container or the boats and ships, and so-called thermoinsulation material has the cold insulation effect, for example, outside freezing central air-conditioning system pipeline, all be coated with thermal insulation pipe, it acts on the cold air that prevents in the pipeline and is subjected to the influence of atmospheric temperature and reduces cold degree, can take precautions against simultaneously air-conditioning duct and air again and produce the heat exchange effect, produce and prevent the phenomenon that seeps water to eliminate aqueous vapor.

With regard to general thermal insulation casing, see also shown in Figure 1ly, and consult Fig. 2 simultaneously, it is respectively the three-dimensional exploded view and the radial cross-section of thermal insulation casing in the past, thermal insulation pipe 1 by upper and lower two structures identical and semicircle pipe 10 that be strip is formed formation one semicircle groove 13 on the semicircle pipe 10; After being bonded with each other with convenient thermal insulation pipe 1, thermal insulation pipe 1 inside promptly forms a containing space 14 by the groove 13 of two halves pipe 10, in thus air-conditioning duct 2 being coated on, infiltrates in the hope of completely cutting off ambient air, and then elimination and air-conditioning duct 2 produce heat exchanges, reaches the effect of cold insulation thermal insulation; But, described two semicircle pipes 10 there is no any activating pressure and are installed with when engaging, therefore need to reach closely connected effect by waterproof, but from the mating face 11 of two halves pipe 10 is to be the larger area plane, whole mating face 11 must be smeared during for the coating waterproof, so it is application area is big, relative, also can increase required manpower, temporal expending, and then cause the increase of installation cost.

Be subject to artificial affecting during the waterproof coating, and easily cause when making under the factor on uneven plane (non-naked eyes can be discovered easily) of concavo-concave convexo-convex on mating face 11, impel waterproof to produce the thickness phenomenon that differs, and apply the waste that too many place easily causes waterproof, coating is located very little again, also can cause and engage back formation space 12(shown in the enlarged diagram formula of Fig. 2), and can't reach the effect that engages sealing really, cause outside air The book of Changes to infiltrate (as shown by arrows) by gap 12, and then produce with air-conditioning duct 2 and to contact, and heat exchange effect phenomenon derive aqueous vapor and related generation seepy question take place.

See also Fig. 3 and be shown in the cross-sectional schematic of thermal insulation casing axial engagement in the past, same, thermal insulation pipe 1 and thermal insulation pipe 1 ' the extension that axially is bonded with each other, mating face 15 by means of thermal insulation pipe 1 two side ends is bonded with each other, therefore but a juncture and the aforesaid juncture disappearance of depositing is identical, promptly have waterproof and smear inequality, easily cause the waste of waterproof and produce gap 16, and then cause air-conditioning duct 2 to contact with ambient air to produce the heat exchange effect and generate aqueous vapor, and reduce that cold degree and related generation are leaked etc.

Main purpose of the present utility model is to provide a kind of PU thermal insulation pipe, is able to after coating air-conditioning duct, but has the effect of fluid-tight engagement really.

Another purpose of the present utility model is a kind of PU thermal insulation pipe to be provided, only to be placed in the caulking groove by means of waterproof, can save coated area of waterproof and time, and then reduces the effect of installation cost.

For realizing above-mentioned purpose, PU thermal insulation pipe of the present invention includes upper and lower seat, and it is formed with containing space, is formed with filler rod and caulking groove on the face that is bonded with each other of upper and lower seat, is coated with waterproof in the caulking groove, and filler rod and caulking groove are rabbeted mutually; In addition, the two ends of PU thermal insulation pipe is formed with junction piece and engaging groove respectively, is coated with waterproof in the engaging groove, and junction piece and engaging groove connect airtight mutually.

Because the utility model adopts above-mentioned structure, so have following advantage and effect:

1. can connect airtight assembling really, prevent that outside air from entering; Be bonded with each other the diametrically joint of face of the utility model, be utilize caulking groove and filler rod closely chimeric, on axial continuity junction surface, be the interlocking that utilizes junction piece and engaging groove simultaneously, so, even when engaging, produce the gap, cause outside air to enter in the gap thus, but because of caulking groove and engaging groove coated waterproof, also can be in the chimeric compacting that is subjected to filler rod and junction piece, cause coated waterproof to be clouded in to external diffusion on the circumferential surface of junction point of caulking groove and engaging groove, therefore the phenomenon that does not have the coated inequality of waterproof in the past and produce the gap takes place, make outside air flow through, can reach the effect that the outside air of blockading enters really to this moment.

2。No heat exchange effect phenomenon, and then isolated aqueous vapor produces factor: the entering of air because the utility model can be blockaded really, so there is no the heat exchange effect phenomenon generation that air contacts with air-conditioning duct, produce factor and can completely cut off aqueous vapor completely, and then prevent the seepage phenomenon.

3. reduce the coated consumption of waterproof, and then reduction installation cost: the storing of waterproof of the present utility model only is in the caulking groove, and the corner of engaging groove, then relend the compacting interlocking that helps filler rod and junction piece, reach waterproof and gather and to be spread on the circumferential surface of junction point, therefore needn't adopt whole in the past coated mode, the utilization efficiency of more effective enhancement waterproof, relatively reduce the required manpower that expends of assembling, time, and then reduce installation cost.

In sum, thermal insulation pipe of the present utility model is on radial engagement, be utilize filler rod and scarfing slot closely chimeric, with and on axial continuity engages, be utilize junction piece and engaging groove closely chimeric, reaching the outside air of blockading enters, secluding air and air-conditioning duct produce the heat exchange effect phenomenon, and then eliminate aqueous vapor generation factor, also can effectively use waterproof simultaneously, really have fluid-tight engagement, reduce effect and advantages such as installation cost.

Below by most preferred embodiment and accompanying drawing PU thermal insulation pipe of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the three-dimensional exploded view of thermal insulation casing in the past.

Fig. 2 is the radial cross-section of thermal insulation casing in the past.

Fig. 3 is the cross-sectional schematic of thermal insulation casing axial engagement in the past.

Fig. 4 is the three-dimensional exploded view of the utility model preferred embodiment.

Fig. 5 is the radial cross-section of the utility model preferred embodiment.

Fig. 6 is the axial engagement cross-sectional schematic of the utility model preferred embodiment.

Fig. 7 is the radial cross-section of another preferred embodiment of the utility model.

Seeing also Fig. 4, is the three-dimensional exploded view of the utility model preferred embodiment, and the thermal insulation pipe 3 of present embodiment includes the main members such as upper and

lower seat

37,38 of semicircular in shape and strip; Form a cross section on the following seat 38 and be the annular groove 30 of semicircle, and on the mating face 31 of annular groove 30 dual-sides, protrude out a filler rod 32 and a caulking groove 33 respectively, and, also form the engaging groove 35 and the junction piece 34 that protrudes out of an indent at following 38 left and right two ends; As for, the seat of honour 37 has the identical construction design with following 38, but it is when assembling, the caulking groove 33 and the filler rod 32 of following seat 38, correspond respectively to filler rod 32 on the seat of honour 37 ' with caulking groove 33 ', make that the seat of honour 37 can be by the filler rod 32(or 32 ' on it with following 38) be embedded at caulking groove 33 ' (or 33) interior (as shown in Figure 5), and reach the effect of mutual driving fit.

See also Fig. 5 again and be shown in the radial cross-section of the utility model preferred embodiment, after upper and

lower seat

37,38 is bonded with each other, the containing space 39 that two annular grooves 30 and 30 ' (please look back shown in Figure 4) formed of upper and

lower seat

37,38 just can coat air-conditioning duct 4, set filler rod 32(or 32 ' on the simultaneously upper and lower seat 37,38) shape and caulking groove 33(or 33 ') shape match, so it can make upper and

lower seat

37,38 closely rabbet mutually; Last, following seat 37, before the 38 mutual interlockings, prior to last, following

seat

37,38 caulking groove 33 and 33 ' interior storing waterproof, so that utilize filler rod 32 and 32 ' under the actuating pressure of packing, causing caulking groove 33 and 33 ' interior waterproof that fills that diffusion takes place stretches, and tamp in the improper space that makes waterproof can really filler rod 32 be engaged the place generation with caulking groove 33, reach and prevent in the outside air infiltration, following seat 37, in 38, and can eliminate air-conditioning duct 4 and produce the problem of heat exchange with outside air, therefore single filling with regard to waterproof, can reduce the consumption of waterproof, and and then required consumed time when save applying, manpower.

Even upper and lower 37,38 because of the manufacturing factor, cause two mutually chimeric after, produce the space in its place, mating face, cause outside air to enter thus easily, but, enter to the scarf of caulking groove 33 and filler rod 32 when air, promptly can be subjected to waterproof and intercept, reach secluding air and produce the effect that contacts with air-conditioning duct 4, so, and it doesn't matter heat exchange effect effect and the problem that reduces the cold degree of cold air takes place, can thereby prevent that aqueous vapor and water leakage phenomenon from taking place.

See also shown in Figure 6, it is the axial engagement cross-sectional schematic of the utility model preferred embodiment, the extension that is bonded with each other of thermal insulation pipe 3, it is the junction piece 34 that utilizes thermal insulation pipe 3 one terminations to be protruded out, and the engaging groove 35 that contracts in another thermal insulation pipe 3 ' termination ', make wantonly two thermal insulation pipes 3 and 3 ' to engage be to utilize concavo-convex interlocking mode, also be an end junction piece 34 of thermal insulation pipe 3 can be embedded at another thermal insulation pipe 3 ' engaging groove 35 ' in, simultaneously the engaging groove 35(of thermal insulation pipe 3 the other ends please look back shown in Figure 4) also can be embedded in the junction piece of another thermal insulation pipe (Fig. 6 does not show), can finish thermal insulation pipe 3 follow chimeric another thermal insulation pipe 3 ' the binding effect, cause that thermal insulation pipe 3 and 3 ' can be suitable length connects airtight extension.

See also shown in Figure 6, for make thermal insulation pipe 3 or 3 ' to extend axially joint more tight, therefore at thermal insulation pipe 3 and 3 ' also need fill waterproof before being bonded with each other, yet waterproof only need fill engaging groove 35 ' corner 351 ' get final product, so that junction piece 34 is in to engaging groove 35 ' interior extrusion embedding the time, waterproof can spread be clouded in engaging groove 35 ' near the circumferential surface of corner 351 ' on, closely be embedded in engaging groove 35 ' interior design and reach junction piece 34; Moreover, thermal insulation pipe 3 extend axially the interlocking effect, also identical with the radial engagement effect, when no matter outside air is entered by that direction, also can be subjected to the obstruct of waterproof, and have contacting of secluding air and air-conditioning duct 4, and prevent that aqueous vapor and water leakage phenomenon from producing.

Please consult Fig. 7 again, it is shown in the radial cross-section of another preferred embodiment of the utility model, and present embodiment thermal insulation pipe 5 includes the main members such as upper and

lower seat

54,55 that can rabbet mutually; On the mating face 51 at the seat of honour 54, then be formed with two filler rods 52 that separate, and on following 55, then offer the caulking groove 53 that matches with filler rod 52 shapes, position, so that for caulking groove 53 and filler rod 52 closely interlocking mutually; Present embodiment is for the axial of thermal insulation pipe 5 and radially joint action and effect, and is identical with last embodiment, has the elimination heat exchange action, and prevents that aqueous vapor and water leakage phenomenon from producing, effects such as the cold degree problem of reduction cold air generation that also it doesn't matter simultaneously.

Claims

1, a kind of polyurethane thermal pipe, it includes upper and lower seat, and it is formed with containing space, and it is characterized in that: be formed with filler rod and caulking groove on the face that is bonded with each other of upper and lower seat, be coated with waterproof in the caulking groove, filler rod and caulking groove are rabbeted mutually.

2, according to the described polyurethane thermal pipe of claim 1, it is characterized in that: the two ends of polyurethane thermal pipe is formed with junction piece and engaging groove respectively, is coated with waterproof in the engaging groove, and junction piece and engaging groove connect airtight mutually.