CN102278564A - Flexible pipe - Google Patents
Flexible pipe Download PDFInfo
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- CN102278564A CN102278564A CN2010102055265A CN201010205526A CN102278564A CN 102278564 A CN102278564 A CN 102278564A CN 2010102055265 A CN2010102055265 A CN 2010102055265A CN 201010205526 A CN201010205526 A CN 201010205526A CN 102278564 A CN102278564 A CN 102278564A
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- copper pipe
- diameter portion
- flexible tube
- flexible hose
- sleeve pipe
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Abstract
The invention provides a flexible pipe, which does not merely depend on welding fixing and can be used for ensuring enough intensity. The flexible pipe (1) comprises a corrugated hose (2), a copper pipe (4) and a bushing (5), wherein approximately the entire surface of the periphery of the corrugated hose (2) is covered by a metal wire woven layer (3); the copper pipe (4) is connected with at least one end part of the corrugated hose by welding fixing; the bushing (5) is embedded by covering the periphery of the end part of a connecting side between the corrugated hose and the metal wire woven layer; the end part of the connecting side of the copper pipe (5) is designed into an expanding part; the top end of the expanding part is connected with the corrugated hose by welding fixing; the end part of the copper pipe side of the bushing is designed into a reducing part by covering the periphery of the expanding part; and the top end of the reducing part can be connected with the copper pipe by welding fixing in a way of being axially jointed with the expanding part.
Description
Technical field
The present invention relates to for example be used for the flexible tube (flexible tube) of the refrigerant circulation of aircondition with various pipelines such as pipelines, particularly relate to following technology: except the welding strength of fixation, also introduced other strength factors, thus with only be not can to guarantee firm intensity being connected of pipeline by the welding technique decision.
Background technique
In the past, as this flexible tube, for example known just like Fig. 4, flexible tube shown in Figure 5.Promptly, the flexible tube 1a of Fig. 4, be whole of periphery corrugated flexible hose (corrugated hose) 2a that is covered by wire braid (wire braid) 3a, this wire braid end, copper pipe 4a the subtend end and to cover the end of sleeve pipe (collar) 5a of periphery of end of wire braid 3a all soldered fixing and connect and form.The flexible tube 1b of Fig. 5 is that the end of sleeve pipe 5b of the periphery that forms the subtend end of widening shape and the end that covers wire braid 3b of end, copper pipe 4b of whole of periphery corrugated flexible hose 2b that is covered by wire braid 3b, this wire braid is all soldered fixing and connect and form.
Two flexible tube 1a, the 1b of Fig. 4 and Fig. 5 are the intensity welded structures that places one's entire reliance upon.Therefore, how relevant the intensity that connects is with welding technique, if welding technique personnel's welding technique clumsiness, then can produce following problem: weak strength, corrugated flexible hose 2a, 2b, copper pipe 4a, 4b, and the connection of sleeve pipe 5a, 5b is insufficient, thereby cause quality of product to descend, perhaps cause after use, having an accident.In addition, when carrying out the soldering welding, must shown in the part that is coated with full black, use a large amount of solder (for example silver solder) to be filled into end difference between sleeve pipe 5a and the copper pipe 4a or the end difference between sleeve pipe 5b and the copper pipe 4b like that, therefore also exist expensive problem.
In addition, at the present invention prior art is investigated, found that the spy opens 2005-201412 communique (patent documentation 1), disclose the metallic knitted body that the tubulose of this metallic bellows was managed and covered to metallic ripple (bellows) and engage the technology that constitutes the shock absorption pipe with tube head in this patent documentation 1, this can be described as the technology close with the flexible tube 1a of above-mentioned Fig. 4.But,, therefore can't say that as mentioned above it has high strength because shock absorption pipe disclosed herein also is only by welding the structure of fixedly guaranteeing intensity.
Patent documentation 1: the spy opens the 2005-201412 communique.
Summary of the invention
Therefore, the present invention is used to solve above-mentioned problems of the prior art, and it is not only to depend on welding flexible tube fixing, that can guarantee sufficient intensity that its purpose is to provide a kind of.
In order to address the above problem, the flexible tube of the invention that first technological scheme is put down in writing comprises: corrugated flexible hose, and roughly whole of its periphery is covered by wire braid; Copper pipe, its end with at least one side of this corrugated flexible hose weld fixing and are connected; And sleeve pipe, its mode intercalation (embed, insert) with the periphery that is connected side end that covers described corrugated flexible hose and wire braid; Described flexible tube is characterised in that, the connection side end of described copper pipe forms wide diameter portion, the top of this wide diameter portion is welded fixing with corrugated flexible hose and is connected, and the copper pipe side end of described sleeve pipe forms diameter reducing part in the mode of the periphery of covering wide diameter portion, and the top of this diameter reducing part is can weld fixing with copper pipe with the mode that described wide diameter portion engages in the axial direction and be connected.
The flexible tube of the invention that second technological scheme is put down in writing has following feature on the basis of the flexible tube that first technological scheme is put down in writing, that is, the maximum outside diameter of the wide diameter portion of copper pipe and the external diameter of corrugated flexible hose are about equally.
The flexible tube of the invention that the 3rd technological scheme is put down in writing has following feature on the basis of the flexible tube that first or second technological scheme is put down in writing, that is, the minimum outer diameter of the diameter reducing part of sleeve pipe is bigger slightly than the external diameter of the part that does not form wide diameter portion of copper pipe.
Has following feature on the basis of the flexible tube that arbitrary technological scheme of the flexible tube of the invention that the 4th technological scheme is put down in writing in first to the 3rd technological scheme put down in writing, promptly, the connection side end of wire braid is embedded between the diameter reducing part of the wide diameter portion of copper pipe and sleeve pipe, and the top of the top of the connection side end of wire braid and the diameter reducing part of sleeve pipe is welded fixing with copper pipe together and is connected.
As mentioned above, in the present invention, the connection side end of copper pipe forms wide diameter portion, the top of this wide diameter portion and corrugated flexible hose weld fixing and link together, and the copper pipe side end of above-mentioned sleeve pipe forms diameter reducing part in the mode of the periphery of covering wide diameter portion, the top of this diameter reducing part is welded fixing with the mode that can engage in the axial direction with described wide diameter portion and copper pipe and is linked together, therefore when connecting, can also expect fixing by the wide diameter portion that is bonded with each other and the intensity of diameter reducing part realization, thereby can obtain the effect that join strength significantly improves except welding.Therefore, do not need to worry degradation under the quality of product as in the past, become the sufficiently high flexible tube of intensity.In addition, can also make the amount of when connecting, welding employed solder, therefore can obtain the effect that suppresses manufacturing expense lower than lacked in the past.
Description of drawings
Fig. 1 is the plan view that expression part an embodiment of the invention, flexible tube is blocked.
Fig. 2 is the enlarged view of the A part among Fig. 1.
Fig. 3 is that expression is arranged on the stereogram of the refrigerant circulation of aircondition with the use example in the pipeline of pipeline.
Fig. 4 is the sectional drawing of the major component of the existing example of expression.
Fig. 5 is the sectional drawing of the major component of other existing examples of expression.
Description of reference numerals:
1 flexible tube, 2 corrugated flexible hoses, 3 wire braids
4 copper pipes, 5 sleeve pipes, 6 corrugated parts
7 wide diameter portions, 8 diameter reducing parts
11 combined air conditioners (multi air-conditioner) (outdoor unit)
12 refrigerants circulation pipeline 14 pedestals 15 vibration proof mechanisms
Embodiment
Below, a mode of execution of flexible tube of the present invention is described with reference to accompanying drawing.
In Fig. 1,1 is flexible tube cylindraceous.This flexible tube 1 comprises: corrugated flexible hose 2, cover the periphery of corrugated flexible hose 2 roughly whole wire braid 3, with two ends of corrugated flexible hose 2 a pair of sleeve pipe 5 by welding the fixing a pair of copper pipe 4 that links together and embedding (insertion) in the mode of the periphery of two ends covering wire braid 3.Below, also each member is described with reference to Fig. 2.
Corrugated flexible hose 2 is also referred to as bellows, and (SUS) makes by stainless steel, and length is about 300mm, and external diameter is about 10～60 φ.Form the corrugated part 6 of accordion-like between the cylindrical part at the two ends of corrugated flexible hose 2.The trough spacing at the place, two ends of corrugated part 6 forms forr a short time than the trough spacing of central part.By such structure, make it have the feature of flexible, shock-resistant, compression, operability excellence.
A pair of copper pipe 4 has identical structure.One of them copper pipe 4 is described.This copper pipe 4 is made of copper, and length is about 100～200mm, and external diameter is about 6～50 φ and integrally forms slightly forr a short time than the external diameter of corrugated flexible hose 2 that this end that forms the slightly little connection side of external diameter forms the wide diameter portion 7 of widening shape gradually.And the external diameter of the maximum outside diameter on the top of wide diameter portion 7 and corrugated flexible hose 2 about equally.
A pair of sleeve pipe 5 has identical structure.One of them sleeve pipe 5 is described.This sleeve pipe 5 is made by stainless steel (SUS), and length is about 30～30mm, and external diameter forms about 14～70 φ.And sleeve pipe 5 has embedded the end of the connection side of corrugated flexible hose 2 in the mode of the periphery of the wide diameter portion 7 of covering copper pipe 4.The end of the connection side of sleeve pipe 5 forms the shape of undergauge gradually, has formed the diameter reducing part 8 that cooperates with this wide diameter portion 7 in the axial direction.The minimum outer diameter on the top of the diameter reducing part 8 of sleeve pipe 5 is than the external diameter that does not form wide diameter portion 7 of copper pipe 4, be that the external diameter of tube body portion 9 is big slightly.Promptly, can know clearly according to Fig. 2, the hole enlargement gradient of the undergauge gradient of the diameter reducing part 8 of sleeve pipe 5 and the wide diameter portion 7 of copper pipe 4 and is formed with micro annular about equally between the outer circumferential face of the tube body portion 9 that does not form wide diameter portion 7 of the top of the diameter reducing part 8 of sleeve pipe 5 and copper pipe 4.The portion that inserts of the solder the when annular gap of the end edge of the above-mentioned end of this annular gap and wire braid 3 between the outer circumferential face of tube body portion 9 becomes welding.
When making aforesaid flexible tube 1, at first cut off with the length arbitrarily of needs roughly whole corrugated flexible hose 2 that is covered by wire braid 3 with periphery, make the top of wide diameter portion 7 of copper pipe 4 relative with two ends of this cut-out respectively to, and fix by the top and the corrugated flexible hose 2 that weld this wide diameter portion.In Fig. 2, the part B that is coated with full black is illustrated in the solder that uses when welding.Then, make from the sleeve pipe 5 of copper pipe 4 side intercalations and overlap with the periphery of the end of the wire braid 3 that is configured to cover above-mentioned weld part in the mode of the end edge of clamping wire braid 3 between the wide diameter portion 7 of its diameter reducing part 8 and copper pipe 4 and be positioned at this position.Then, between the outer circumferential face with the main body portion 9 of the top of the diameter reducing part 8 of sleeve pipe 5 and copper pipe 4, between the outer circumferential face of the end of wire braid 3 and tube body portion 9 with weld with the mode of the described annular gap of solder landfill, fixing.In Fig. 2, the portion C that is coated with full black is illustrated in the solder that uses when welding.Thus, make as shown in Figure 1, 2 flexible tube 1.
When making this flexible tube 1, can know clearly according to this Fig. 2, welding needs only shown in the part B, the C that are coated with full black with a limited part, weld with radially small size in the annular gap as described in particularly being shown in and get final product as the portion C that is coated with full black, and the formed large size radially of end difference that does not need to spread over as prior art between sleeve pipe and the copper pipe is welded, so the amount that can save solder, thereby can suppress manufacturing expense lower.
Next, illustration.Aforesaid flexible tube 1 for example is arranged in the refrigerant circulation pipeline with pipeline of aircondition as shown in Figure 3 and uses.In the present example, specifically be arranged to be connected the circulation of combined air conditioners (outdoor unit) 11 and refrigerant with between the pipeline 12, described combined air conditioners is arranged on the roof of mansion.Outdoor unit 11 is arranged on the pedestal 14 via vibration proof mechanism 15, accommodates compressor etc. in the inside of outdoor unit 11.In addition, the pipeline 12 that is configured on the frame 13 that is arranged in the roof is contained in not shown framework case (rack case).
In above-mentioned use example, for example be delivered to flexible tube 1 via vibration proof mechanism 15 as the pipeline joint in the vibration in service, that produced because of compressor in the outdoor unit etc. of outdoor unit 11, load puts on this flexible tube, but in flexible tube 1, the corrugated part 6 of corrugated flexible hose 2 is moderately crooked and absorbed this vibration.In addition, in flexible tube 1, sometimes in that also effect is strong on axial direction away from each other on corrugated flexible hose 2 and the copper pipe 4, but this moment sleeve pipe 5 diameter reducing part 8 and the wide diameter portion 7 of copper pipe 4 be bonded with each other in the axial direction, produce the resistivity that corrugated flexible hose 2 and copper pipe 4 are not broken away from.Therefore, corrugated flexible hose 2 also forms firm being connected by the resistivity that produces owing to above-mentioned joint with copper pipe 4 except the welding part.Therefore, the join strength between corrugated flexible hose 2, copper pipe 4 and the sleeve pipe 5 is very abundant, can not cause the quality of product to descend as prior art.In addition, be not only the vibration in the outdoor unit 11, also can act on same power under the situation of swing at outdoor unit 11 significantly owing to typhoon or earthquake etc., also absorb in this case and be accompanied by the vibration that this swing produces by flexible tube 1, promptly engaging between the wide diameter portion 7 of the diameter reducing part 8 by sleeve pipe 5 and copper pipe 4 brought into play the disengaging resistivity, thereby can expect identical effect.
In aforesaid example,, outdoor unit 11 directly was connected with pipeline 12 with the refrigerant circulation in the past.Therefore, if because vibration, typhoon or the earthquake etc. that are produced because of compressor etc. are waved outdoor unit 11 significantly, and then vibration can involve pipeline 12, and load will act on the pipeline joint, worry that therefore the circuit cold media air may be revealed in pipeline 12.But, connecting the circulation of outdoor unit 11 and refrigerant as described above by flexible tube 1 with under the situation of pipeline 12, the vibration propagation that produces even be accompanied by such swing, the corrugated part 6 of corrugated flexible hose 2 is moderately crooked and absorb this vibration as mentioned above.Therefore, no longer worry the leakage of cold media air as described above.
In addition, can lift the outdoor unit 11 that connects by pipeline 12 sometimes to vibration proof mechanism 15 places under repair or replacing etc. the time, even when this lifts, the corrugated part 6 of corrugated flexible hose 2 is also moderately crooked and absorb vibration.
And, if use above-mentioned flexible tube 1, then the pipe distribution operation of idle call pipe etc. also can easily carry out, and behind pipe distribution operation, can absorb swing or vibration, therefore even cause pipeline that position deviation (dislocation) has taken place owing in various degree sinking etc., also can absorb positional offset amount.
Above-mentioned mode of execution has only been represented a preferred example, and the present invention also comprises the scope appropriate mode of executions interior, that other are different that claim is put down in writing.Corrugated flexible hose 2, wire braid 3, copper pipe 4 and sleeve pipe 5 also only are an example, it can be replaced by the parts with identical effect of other structures.In addition, the self-evident concrete structure that is formed at the wide diameter portion 7 of copper pipe 4 and/or is formed at the diameter reducing part 8 of sleeve pipe 5 also can be the structure beyond the schematic structure.
Claims (4)
1. flexible tube comprises:
Corrugated flexible hose, roughly whole of its periphery is covered by wire braid;
Copper pipe, its end with at least one side of this corrugated flexible hose weld fixing and are connected; And
Sleeve pipe, it is with the mode intercalation of the periphery that is connected side end that covers described corrugated flexible hose and wire braid, and this flexible tube is characterised in that,
The connection side end of described copper pipe forms wide diameter portion, the top of this wide diameter portion is fixedly welded on corrugated flexible hose and connects, and the copper pipe side end of described sleeve pipe forms diameter reducing part in the mode of the periphery of covering wide diameter portion, and the top of this diameter reducing part is can be fixedly welded on copper pipe with the mode that described wide diameter portion engages in the axial direction and be connected.
2. flexible tube as claimed in claim 1 is characterized in that,
The maximum outside diameter of the wide diameter portion of copper pipe and the external diameter of corrugated flexible hose are about equally.
3. flexible tube as claimed in claim 1 or 2 is characterized in that,
The minimum outer diameter of the diameter reducing part of sleeve pipe is bigger slightly than the external diameter of the part that does not form wide diameter portion of copper pipe.
4. as each the described flexible tube in the claim 1 to 3, it is characterized in that,
The connection side end of wire braid is embedded between the diameter reducing part of the wide diameter portion of copper pipe and sleeve pipe, and the top of the top of the connection side end of wire braid and the diameter reducing part of sleeve pipe is fixedly welded on copper pipe together and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102055265A CN102278564B (en) | 2010-06-10 | 2010-06-10 | Flexible pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102055265A CN102278564B (en) | 2010-06-10 | 2010-06-10 | Flexible pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102278564A true CN102278564A (en) | 2011-12-14 |
| CN102278564B CN102278564B (en) | 2013-11-20 |
Family
ID=45104186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102055265A Active CN102278564B (en) | 2010-06-10 | 2010-06-10 | Flexible pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102278564B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829968A (en) * | 2012-08-28 | 2012-12-19 | 无锡新得宝金属软管有限公司 | Automotive corrugated flexible joint road-spectrum acquisition method and acquisition system thereof |
| CN109974192A (en) * | 2019-04-01 | 2019-07-05 | 珠海格力电器股份有限公司 | The control method and device of air conditioner coolant recycling |
| WO2022110724A1 (en) * | 2020-11-27 | 2022-06-02 | 广东美的制冷设备有限公司 | Connecting pipe for air conditioner, and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06307585A (en) * | 1993-04-27 | 1994-11-01 | Toyoda Gosei Co Ltd | Hose |
| JPH08226581A (en) * | 1995-02-21 | 1996-09-03 | Calsonic Corp | Flexible tube |
| CN1135015A (en) * | 1996-01-30 | 1996-11-06 | 南昌赣中金属波纹管厂 | Metallic bellows hose specially used for automobile exhaust, and prodn. method thereof |
| CN2670609Y (en) * | 2003-08-12 | 2005-01-12 | 董菁荣 | Flexible metal bellows of vehicle exhaust pipe |
| CN201475531U (en) * | 2009-09-02 | 2010-05-19 | 航天晨光股份有限公司 | Oxygen blast metal hose |
-
2010
- 2010-06-10 CN CN2010102055265A patent/CN102278564B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06307585A (en) * | 1993-04-27 | 1994-11-01 | Toyoda Gosei Co Ltd | Hose |
| JPH08226581A (en) * | 1995-02-21 | 1996-09-03 | Calsonic Corp | Flexible tube |
| CN1135015A (en) * | 1996-01-30 | 1996-11-06 | 南昌赣中金属波纹管厂 | Metallic bellows hose specially used for automobile exhaust, and prodn. method thereof |
| CN2670609Y (en) * | 2003-08-12 | 2005-01-12 | 董菁荣 | Flexible metal bellows of vehicle exhaust pipe |
| CN201475531U (en) * | 2009-09-02 | 2010-05-19 | 航天晨光股份有限公司 | Oxygen blast metal hose |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829968A (en) * | 2012-08-28 | 2012-12-19 | 无锡新得宝金属软管有限公司 | Automotive corrugated flexible joint road-spectrum acquisition method and acquisition system thereof |
| CN109974192A (en) * | 2019-04-01 | 2019-07-05 | 珠海格力电器股份有限公司 | The control method and device of air conditioner coolant recycling |
| CN109974192B (en) * | 2019-04-01 | 2020-11-10 | 珠海格力电器股份有限公司 | Control method and device for air conditioner refrigerant recovery |
| WO2022110724A1 (en) * | 2020-11-27 | 2022-06-02 | 广东美的制冷设备有限公司 | Connecting pipe for air conditioner, and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102278564B (en) | 2013-11-20 |
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