CN101284425A - Arc wind pipe with groove and preparation technique thereof - Google Patents
Arc wind pipe with groove and preparation technique thereof Download PDFInfo
- Publication number
- CN101284425A CN101284425A CNA2007100679351A CN200710067935A CN101284425A CN 101284425 A CN101284425 A CN 101284425A CN A2007100679351 A CNA2007100679351 A CN A2007100679351A CN 200710067935 A CN200710067935 A CN 200710067935A CN 101284425 A CN101284425 A CN 101284425A
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- Prior art keywords
- blast pipe
- board
- pipe board
- groove
- arc
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0272—Modules for easy installation or transport
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0281—Multilayer duct
Abstract
The invention relates to a grooved arc-shaped air pipe and the production process thereof. The process includes cutting air pipe plates with the following steps: a. the left and the right air pipe plates are cut into arc-shaped flat plates; and b. the upper and the lower air pipe plates are cut and a plurality of through-grooves are transversally formed on the two plates by cutting. The process also includes conglutinating the air pipe plates with the following steps: an adhesive is coated in the through-grooves, and the upper and the lower air pipe plates are conglutinated to the arc-shaped edges of the left and the right air pipe plates after being bent. The air pipe adopting the process of the invention is an arc-shaped tube which is circled by the left and the right air pipe plates and the upper and the lower air pipe plates, the left and the right air pipe plates are arc-shaped flat plates with L-shaped grooves and arc-shaped edges, and the upper and the lower air pipe plates are arc-shaped bent plates with a plurality of transversal through grooves. The grooved arc-shaped air pipe and the production process have the advantage that the air pipe obtained by adopting the process can be conveniently applied to air pipes with turnings or three paths or four paths, etc., the air pipes are smooth and fluent, the air currents therein are avoided to be blocked, and the use effect is ensured.
Description
[affiliated technical field]
The present invention relates to a kind of ventilation shaft and manufacture craft thereof that is applied to building field or field of air conditioning, relate in particular to a kind of trough of belt arc wind pipe and manufacture craft thereof.
[background technology]
Combined airduct is to be carrier with cystosepiment (as polyethylene foam sheet, rubber and plastic cystosepiment), two of cystosepiments respectively the composite glass fiber inorganic coagulation material make blast pipe board, with each blast pipe board combination, form ventilation shaft then.Because after inorganic coagulation material solidified, prepared blast pipe board was a hard plate, can not bend, the airduct that adopts existing manufacture craft to make is a straight pipe type.The ventilation shaft of making when need is when bending airduct, three ventilation ducts, four-way airduct, if adopt existing hard straight tube, will form darker bending around the corner, bring obstruction for easily around the corner the air-flow in the airduct, influence ventilation effect, and to using and installing and make troubles.
[summary of the invention]
The object of the present invention is to provide that a kind of up and down blast pipe board laterally has groove, left and right sides blast pipe board is the trough of belt arc wind pipe and the manufacture craft thereof of arc, use the preparation-obtained arc-shape wind pipe of this technology, can be applied to ventilation shaft easily with turning or threeway or four-way, make ventilation shaft smoothly smooth, the airduct that solves the manufacture craft made of prior art existence is a straight tube, when threeway or four-way be turned or be needed to ventilation shaft need, form windage around the corner easily, influence the problem of ventilation effect etc.
The present invention solves the technical scheme that the prior art problem adopted: a kind of manufacture craft of trough of belt arc wind pipe is characterized in that the step of this technology is: the making of step 1, blast pipe board, the cutting of step 2, blast pipe board, step 3, blast pipe board bonding; The production process of described blast pipe board cutting comprises: a, cutting left and right sides blast pipe board make its camber flat board; B, cutting be blast pipe board up and down, and cuts horizontal some grooves on this two plate; The bonding production process of described blast pipe board comprises: coating adhesive in described groove is adhered on the arc limit of left and right sides blast pipe board after the blast pipe board bending up and down again.The groove that has on the blast pipe board up and down can be easily with this two blast pipe board bending, and crooked radian just adapts with two arc limits of left and right sides blast pipe board, after each blast pipe board is bonded together, can form arc-shape wind pipe.
The production process of described blast pipe board is: I, at the inorganic adhesive-layer of template topping roll one deck fiber reinforcement, then on the inorganic adhesive-layer of this fiber reinforcement, place selected thermal insulation board, at the inorganic adhesive-layer of upper surface roll one deck fiber reinforcement of thermal insulation board, form composite plate again; II, the composite plate horizontal is air-dry.Thermal insulation board is used to guarantee the heat transmission by less between the hot and cold air in such ventilation shaft and the external world, the inorganic adhesive-layer of fiber reinforcement is used to guarantee the intensity of blast pipe board and strengthens corrosion resistance, the bulk strength and the service life of also just having guaranteed ventilation shaft.
The production process of described blast pipe board cutting comprises that also the arc limit that left and right sides blast pipe board is cooperated with blast pipe board up and down cuts into L shaped trough rim, described L shaped trough rim cutting action is: respectively cut a cutting seam in two inboards on two arc limits of left and right sides blast pipe board, the distance that this cutting is sewn to the edge is the thickness of blast pipe board, the degree of depth of cutting seam is 3/4ths of a blast pipe board thickness, then will cut the inorganic adhesive-layer of inboard fiber reinforcement and the thermal insulation board excision at L shaped place in advance with cutter, keep outside fiber and strengthen inorganic adhesive-layer, form two L shaped grooves.The arc limit of the L shaped groove of cutting belt helps increasing bonding plane, improves adhesive strength, guarantees the intensity of the airduct produced.After cutting the cutting seam, after can being transported to the occasion of pre-installation airduct together with other blast pipe board, will cut the inorganic adhesive-layer of inboard fiber reinforcement and the thermal insulation board excision at L shaped groove place more in advance, and keep outside fiber and strengthen inorganic adhesive-layer, and then each blast pipe board is bonding, be combined into airduct.Cao Zuo purpose is convenient transportation like this, and the while can prevent that again the outside fiber at L shaped groove place from strengthening inorganic adhesive-layer and being fractureed in transportation.
Described blast pipe board up and down can be towards the bending of groove opening direction, and before bending, fiberfill fibers strengthens inorganic viscose glue in described groove earlier, and after the bending, remove excess fiber and strengthen inorganic viscose glue, and air-dry setting; Described blast pipe board up and down also can be crooked in the other direction towards the groove opening, and after the bending, after the bending, light filling insulation adhesives is followed smooth fluting face, last air-dry setting in described groove.The bending direction of blast pipe board has two kinds of feasible patterns up and down, when blast pipe board after the bending of groove opening direction, the size decreases of groove, directly fiberfill fibers strengthens inorganic viscose glue, reaches the purpose of filling with setting, during setting, after being bent to the setting radian, fix its radian with fixture, behind the adhesive solidification, promptly form the radian plate; When blast pipe board is crooked in the other direction towards the groove opening, it is big that the size of groove becomes, directly fiberfill fibers strengthens inorganic viscose glue, also can be incubated adhesives by first light filling, and then with the smooth notch of the inorganic viscose glue of fiber reinforcement, and setting, and when bending, fix radian earlier, in groove, fill filler then.
The bonding process of described blast pipe board is: i, place the pad part on the face of bearing, a left side/right blast pipe board is lain in fill up on the part; Blast pipe board is bonded in the both sides of a left side/right airduct about ii, the general, then the right side/left blast pipe board is bonded between this two blast pipe board; Iii, place casting die respectively in the both sides of blast pipe board up and down, by connector that the two ends of both sides casting die are fastening mutually respectively; Iv, treat adhesive solidification after, remove described casting die and connector.The setting of pad part can make a left side/right blast pipe board and the face of bearing have certain space, and connector can be easy to help fastening casting die below a left side/right airduct by a left side/right blast pipe board; Casting die and connector be provided for combined flue pipe the time, each blast pipe board is pressed on together, can prevent that the appearance of phenomenon such as very sealing from appearring between distortion or the bonding insecure or adjacent blast pipe board not in airduct when waiting for that adhesive solidifies, guarantee accurate positioning between the blast pipe board; Good airproof performance can reduce by hot and cold air in it and the extraneous efficient that the heat transmission takes place, and can guarantee cooling or heating effect.During bonding each blast pipe board, can be only in the adhesion side coating viscosity glue agent of left and right sides blast pipe board, also can be in the adhesion side coating viscosity glue agent of each blast pipe board; When removing casting die, only need to remove connector and get final product, simple to operation.
The bonding process of described blast pipe board is: a plurality of strappings are placed by A, elder generation on the face of bearing, a left side/right blast pipe board is lain on the strapping; Blast pipe board is bonded in the both sides of a left side/right airduct about B, the general, then the right side/left blast pipe board is bonded between this two blast pipe board; C, described strapping is tied up along the horizontal direction of each blast pipe board; D, treat adhesive solidification after, remove described strapping.Strapping be provided for combined flue pipe the time, each blast pipe board is banded together, the effect of the effect of strapping and above-mentioned casting die and connector is equivalent.
Adopt airduct that above-mentioned technology makes by left and right sides blast pipe board and the arc tubular body that surrounds of blast pipe board up and down, wherein, described left and right sides blast pipe board is the arc flat board with L shaped groove arc limit, described blast pipe board up and down is the arc bent plate, the some horizontal groove that has on it, the degree of depth of this groove are the thickness and the thermal insulation board thickness sum of the inorganic adhesive-layer of one deck fiber reinforcement.Being limited with of the groove degree of depth is beneficial to the bending of blast pipe board up and down, also helps guaranteeing the intensity of this two blast pipe board.Blast pipe board can reduce the size of groove so simultaneously towards the bending of groove opening direction up and down, has reduced the transmission of the inside and outside heat of airduct, guarantees ventilation effect.
Be filled with the inorganic adhesive-layer of fiber reinforcement in the described groove.When blast pipe board was towards the bending of groove opening direction up and down, the groove size was less, can not need filling with insulation material.Adhesive-layer plays the effect of filling with setting.
Be filled with heat-insulation layer in the described groove, be coated with the inorganic adhesive-layer of fiber reinforcement at the opening of described groove.When crooked, it is big that the groove size becomes towards the opposite direction of groove opening for blast pipe board up and down, must filling heat insulating wall, just can guarantee effect of heat insulation.The adhesive-layer here plays the effect of flat surface and setting.
Described groove can be V-shaped groove, also can be U-lag.If when groove is V-arrangement, the dimensional requirement and the cutting accuracy of groove are had relatively high expectations, and need to carry out different designs, bring certain burden to batch process according to different airduct types and size.So adopt the U-shaped groove usually, can avoid the problem of above-mentioned appearance, for different airducts, only need increase and decrease groove quantity to get final product, simple to operation, and be fit to produce in batches.
The beneficial effect that has of the present invention is: the airduct that 1, adopts this technology to make, can be applied to easily with turn round or the ventilation shaft of threeway or four-way on, make ventilation shaft smooth along slip-stream, avoid airflow obstruction in it, guarantee result of use, and easy for installation simple; 2, adopt pressing plate and connector or adopt the technology of the fastening blast pipe board of fixture such as strapping in the bonding and solidification process on airduct two limits at airduct, the abutting edge that makes four blast pipe board is bonding tight, guarantee sealing, and under the condition of accurate positioning, finish the combination of airduct; 3, adopt in the airduct that this technology produces between the adjacent blast pipe board joint face big, be not easy distortion, conveniently install and use; 4, the airduct that adopts this technology to produce does not have the seam of connection, is applied in the field of air conditioning as if such airduct, and is less with the heat that the heat transmission takes place in the external world by the cold and hot gas in it, guaranteed cooling or heating effect.
[description of drawings]
Fig. 1 is a kind of process chart of the present invention;
Fig. 2 is an another kind of process chart of the present invention;
Fig. 3 is the cross-sectional structure schematic diagram of the blast pipe board that the present invention produced;
Fig. 4 fills preceding a kind of structural representation for the groove of the blast pipe board up and down that the present invention produced;
Fig. 5 fills preceding another kind of structural representation for the groove of the blast pipe board up and down that the present invention produced;
Fig. 6 is a kind of structural representation after the groove of the blast pipe board up and down that the present invention produced is filled;
Fig. 7 is the another kind of structural representation after the groove of the blast pipe board up and down that the present invention produced is filled;
Fig. 8 is a kind of airduct perspective view that the present invention produced;
Fig. 9 is a kind of airduct cross-sectional structure schematic diagram that the present invention produced;
Figure 10 produces the structural representation of airduct for the present invention adopts casting die;
Figure 11 produces the structural representation of airduct for the present invention adopts strapping.
Among the figure: 1. the inorganic adhesive-layer of fiber reinforcement, 2. thermal insulation board, 4. left and right sides blast pipe board, 5. up and down blast pipe board, 6. pad part, 7. casting die, 8. connector, 9. strapping, 10. groove, the inorganic adhesive-layer of 11. fiber reinforcements, 12. heat-insulation layers.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
[specific embodiment]
Embodiment 1: a kind of manufacture craft of trough of belt arc wind pipe, and as shown in Figure 1, the step of this technology is: the making of step 1, blast pipe board, the cutting of step 2, blast pipe board, step 3, blast pipe board bonding; The production process of blast pipe board cutting comprises: a, cutting left and right sides blast pipe board 4 make its camber flat board; B, cutting be blast pipe board 5 up and down, and cuts horizontal some grooves 10 (as Fig. 4 or shown in Figure 5) on this two plate; The production process of blast pipe board cutting comprises that also the arc limit that left and right sides blast pipe board 4 is cooperated with blast pipe board 5 up and down cuts into the limit (as described in Figure 9) with L shaped groove, the cutting action of L shaped groove is: respectively cut a cutting seam in two inboards on two arc limits of left and right sides blast pipe board 4, it is the thickness of blast pipe board that this cutting is sewn to the distance of cutting L shaped limit in advance, the degree of depth of cutting seam is 3/4ths of a blast pipe board thickness, then will cut the inorganic adhesive-layer 1 of inboard fiber reinforcement and thermal insulation board 2 excisions at L shaped place in advance with cutter, keep outside fiber and strengthen inorganic adhesive-layer 1, form L shaped trough rim on left and right sides blast pipe board 4 both sides.The cutting technique of groove is identical with the cutting technique of L shaped groove, its radian according to the arc limit of left and right sides arc-shape wind pipe flat board is determined the openings of sizes of groove and the spacing between the adjacent groove, during cutting, cut two straight lines seam earlier on the both sides of cutting groove in advance, then cut off inorganic adhesive-layer of one deck and thermal insulation layer, keep the inorganic adhesive-layer of other one deck.
The bonding production process of blast pipe board comprises: coating adhesive in groove 10 is adhered on the arc limit of left and right sides blast pipe board 4 after blast pipe board 5 bendings up and down again.
The production process of described blast pipe board is: I, at the inorganic adhesive-layer of template topping roll one deck fiber reinforcement, then on the inorganic adhesive-layer of this fiber reinforcement, place selected thermal insulation board, at the inorganic adhesive-layer of upper surface roll one deck fiber reinforcement of thermal insulation board, form composite plate again; II, the composite plate horizontal is air-dry, the blast pipe board that makes, as shown in Figure 3.
The bonding process of blast pipe board is: i, place pad part 6 on the face of bearing, a left side/right blast pipe board 4 is lain in fill up on the part 6; Blast pipe board 5 is bonded in the both sides of a left side/right airduct about ii, the general, then the right side/left blast pipe board 4 is bonded between this two blast pipe board; Iii, place casting die 7 respectively in the both sides of blast pipe board 5 up and down, by connector 8 that the two ends of both sides casting die 7 are fastening mutually respectively; Iv, treat adhesive solidification after, remove described casting die 7 and connector 8, as shown in figure 10.
Adopt the airduct of the manufacture craft made of trough of belt arc wind pipe, as Fig. 8 and shown in Figure 9, it is by left and right sides blast pipe board 4 and the arc tubular body that surrounds of blast pipe board 5 up and down, wherein, described left and right sides blast pipe board 4 is the arc flat board with L shaped groove arc limit, described up and down blast pipe board 5 is the arc bent plate, and the some horizontal U-shaped groove 10 (as Fig. 5 and shown in Figure 7) that has on it is the thickness and the thermal insulation board 2 thickness sums of the inorganic adhesive-layer 1 of one deck fiber reinforcement in the degree of depth of this groove 10.Be filled with the inorganic adhesive-layer 11 of fiber reinforcement in the groove 10.
Embodiment 2: a kind of manufacture craft of trough of belt arc wind pipe, and as Fig. 2 and shown in Figure 11, the bonding process of blast pipe board is: a plurality of strappings 9 are placed by A, elder generation on the face of bearing, a left side/right blast pipe board 4 is lain on the strapping 9; Blast pipe board 5 is bonded in the both sides of a left side/right airduct about B, the general, then the right side/left blast pipe board 4 is bonded between this two blast pipe board; C, described strapping 9 is tied up along the horizontal direction of each blast pipe board; D, treat adhesive solidification after, remove described strapping 9.The structure of all the other airducts and manufacture craft are with embodiment 1.
Embodiment 3: a kind of manufacture craft of trough of belt arc wind pipe, as Fig. 1 or shown in Figure 2, blast pipe board 5 also can be crooked in the other direction towards groove 10 openings up and down, after the bending, light filling is incubated adhesives in described groove 10 earlier, to the smooth fluting face in blast pipe board 5 crooked backs up and down then, last air-dry setting.All the other manufacture crafts are with embodiment 1 or 2.At this moment, adopt the airduct of this manufacture craft made, be filled with heat-insulation layer 12 in the groove 10 on it, be coated with the inorganic adhesive-layer 11 of fiber reinforcement (as shown in Figure 7) at the opening of described groove 10.All the other structures are with embodiment 1 or 2.
Embodiment 4: adopt the airduct of the manufacture craft made of embodiment 1 or 2 or 3, the some horizontal V-arrangement groove 10 (as Fig. 4 and shown in Figure 6) that has on the blast pipe board 5 up and down.The structure of all the other airducts and manufacture craft are with embodiment 1 or 2 or 3.
Claims (10)
1. the manufacture craft of a trough of belt arc wind pipe is characterized in that the step of this technology is: the making of step 1, blast pipe board, the cutting of step 2, blast pipe board, step 3, blast pipe board bonding; The production process of described blast pipe board cutting comprises: a, cutting left and right sides blast pipe board (4) make its camber flat board; B, cutting be blast pipe board (5) up and down, and cuts horizontal some grooves (10) on this two plate; The bonding production process of described blast pipe board comprises: coating adhesive in described groove (10) is adhered on the arc limit of left and right sides blast pipe board (4) after blast pipe board (5) bending up and down again.
2. the manufacture craft of a kind of trough of belt arc wind pipe according to claim 1, the production process that it is characterized in that described blast pipe board is: I, at the inorganic adhesive-layer of template topping roll one deck fiber reinforcement (1), then go up and place selected thermal insulation board (2) at the inorganic adhesive-layer of this fiber reinforcement (1), at the inorganic adhesive-layer of upper surface roll one deck fiber reinforcement (1) of thermal insulation board (2), form composite plate again; II, the composite plate horizontal is air-dry.
3. the manufacture craft of a kind of trough of belt arc wind pipe according to claim 2, the production process that it is characterized in that the cutting of described blast pipe board comprises that also the arc limit that left and right sides blast pipe board (4) is cooperated with blast pipe board (5) up and down cuts into L shaped trough rim, described L shaped trough rim cutting action is: respectively cut a cutting seam in two inboards on two arc limits of left and right sides blast pipe board (4), the distance that this cutting is sewn to the edge is the thickness of blast pipe board, the degree of depth of cutting seam is 3/4ths of a blast pipe board thickness, then will cut the inorganic adhesive-layer of inboard fiber reinforcement (1) and thermal insulation board (2) excision at L shaped place in advance with cutter, keep outside fiber and strengthen inorganic adhesive-layer (1), form two L shaped grooves.
4. the manufacture craft of a kind of trough of belt arc wind pipe according to claim 3, it is characterized in that described up and down blast pipe board (5) can be towards groove (10) opening direction bending, before bending, fiberfill fibers strengthens inorganic viscose glue in described groove (10) earlier, after the bending, remove excess fiber and strengthen inorganic viscose glue, and air-dry setting; Described blast pipe board (5) up and down also can be crooked in the other direction towards groove (10) opening, and after the bending, light filling insulation adhesives is followed smooth fluting face, last air-dry setting in described groove (10).
5. the manufacture craft of a kind of trough of belt arc wind pipe according to claim 4 is characterized in that the bonding process of described blast pipe board is: i, place pad part (6) on the face of bearing, a left side/right blast pipe board (4) is lain in fill up on the part (6); Blast pipe board (5) is bonded in the both sides of a left side/right airduct about ii, the general, then the right side/left blast pipe board (4) is bonded between this two blast pipe board; Iii, place casting die (7) respectively in the both sides of blast pipe board (5) up and down, by connector (8) that the two ends of both sides casting die (7) are fastening mutually respectively; Iv, treat adhesive solidification after, remove described casting die (7) and connector (8).
6. the manufacture craft of a kind of trough of belt arc wind pipe according to claim 4 is characterized in that the bonding process of described blast pipe board is: a plurality of strappings (9) are placed by A, elder generation on the face of bearing, a left side/right blast pipe board (4) is lain on the strapping (9); Blast pipe board (5) is bonded in the both sides of a left side/right airduct about B, the general, then the right side/left blast pipe board (4) is bonded between this two blast pipe board; C, described strapping (9) is tied up along the horizontal direction of each blast pipe board; D, treat adhesive solidification after, remove described strapping (9).
7. the airduct of the manufacture craft made of a kind of trough of belt arc wind pipe according to claim 1, it is characterized in that it is by left and right sides blast pipe board (4) and the arc tubular body that surrounds of blast pipe board (5) up and down, wherein, described left and right sides blast pipe board (4) is the arc flat board with L shaped groove arc limit, described blast pipe board (5) up and down is the arc bent plate, the some horizontal groove (10) that has on it, the degree of depth of this groove (10) are the thickness and thermal insulation board (2) the thickness sum of the inorganic adhesive-layer of one deck fiber reinforcement (1).
8. the airduct of the manufacture craft made of a kind of trough of belt arc wind pipe according to claim 7 is characterized in that being filled with in the described groove (10) the inorganic adhesive-layer of fiber reinforcement (11).
9. the airduct of the manufacture craft made of a kind of trough of belt arc wind pipe according to claim 7 is characterized in that being filled with in the described groove (10) heat-insulation layer (12), is coated with the inorganic adhesive-layer of fiber reinforcement (11) at the opening of described groove (10).
10. according to Claim 8 or the airduct of the manufacture craft made of 9 described a kind of trough of belt arc wind pipes, it is characterized in that described groove (10) can be V-shaped groove, also can be U-lag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100679351A CN101284425B (en) | 2007-04-10 | 2007-04-10 | Arc wind pipe with groove and preparation technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100679351A CN101284425B (en) | 2007-04-10 | 2007-04-10 | Arc wind pipe with groove and preparation technique thereof |
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| Publication Number | Publication Date |
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| CN101284425A true CN101284425A (en) | 2008-10-15 |
| CN101284425B CN101284425B (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100679351A Expired - Fee Related CN101284425B (en) | 2007-04-10 | 2007-04-10 | Arc wind pipe with groove and preparation technique thereof |
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| CN110709337A (en) * | 2017-06-09 | 2020-01-17 | 野醍冷却器有限责任公司 | Heat insulation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20215633U1 (en) * | 2002-10-11 | 2002-12-12 | Thermax Brandschutzbauteile Ge | Plate-shaped molded part and air or cable duct component |
| CN2842128Y (en) * | 2005-09-20 | 2006-11-29 | 沈金良 | Composite blast pipe |
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| CN110709337A (en) * | 2017-06-09 | 2020-01-17 | 野醍冷却器有限责任公司 | Heat insulation device |
| CN110709337B (en) * | 2017-06-09 | 2023-10-27 | 野醍冷却器有限责任公司 | Heat insulation device |
| USD1006548S1 (en) | 2017-10-30 | 2023-12-05 | Yeti Coolers, Llc | Backpack cooler |
| US11565872B2 (en) | 2019-11-15 | 2023-01-31 | Yeti Coolers, Llc | Insulating device |
| US11834253B2 (en) | 2019-11-15 | 2023-12-05 | Yeti Coolers, Llc | Insulating device |
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| CN101284425B (en) | 2010-09-22 |
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