CN208935590U

CN208935590U - Corrugated connecting tube

Info

Publication number: CN208935590U
Application number: CN201821687169.9U
Authority: CN
Inventors: 左铁军; 杨训; 赵越; 孙德兴; 赵芊荟
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2019-06-04
Anticipated expiration: 2028-10-17

Abstract

The utility model proposes a kind of corrugated connecting tubes, bellows including intermediate tube and setting and intermediate tube one or both sides, the bellows include bellows segment, with the welding ends of intermediate tube connection and it is opposite with welding ends use connecting pin, pass through welded connecting between the intermediate tube and the welding ends of bellows.Bellows provided by the utility model, by the way of welded connecting, it is ensured that the consistency of bellows entirety avoids condensing agent from revealing.On the other hand, bellows, which uses different materials, can reduce the manufacturing cost of bellows under the premise of guaranteeing bellows normal use.

Description

Corrugated connecting tube

Technical field

The present invention relates to tubing technical field more particularly to a kind of idle call corrugated connecting tubes.

Background technique

Bellows is used for air-conditioning, and effect is the indoor unit and outdoor unit for connecting air-conditioning.The structure of bellows includes centre Pipe and the bellows that connect with intermediate tube, wherein the outer wall of intermediate tube is smooth tube, and without ripple, when use is not bent；Wave The outer wall of line pipe has ripple, in conjunction with specific operating condition, is used for air-conditioning connecting pin, and/or, outdoor unit connecting pin, when use, can be curved Song, bellows are convenient for bending.

In the prior art, in order to easy to process, bellows and intermediate tube are integrated structures, usually by same material What material was process by the technique of tube expansion or the draw.For the bending intensity including bellows, bellows is usually to use copper Material production, and the bellows of integral structure, intermediate tube are also using copper material, this has resulted in the high problem of tubing cost.

Summary of the invention

The present invention for the above technical issues, proposes the bellows of a kind of low cost, stable structure.

In order to achieve the above object, the technical solution adopted by the present invention are as follows:

A kind of corrugated connecting tube, the bellows including intermediate tube and setting and intermediate tube one or both sides, the bellows Including bellows segment, the welding ends and the use connecting pin opposite with welding ends, the intermediate tube and bellows that are connected with intermediate tube Welding ends between pass through welded connecting.

Preferably, intermediate tube and bellows are made of different materials.

Preferably, the material of intermediate tube is aluminium, the material of bellows is copper.

Preferably, the bellows segment of bellows, welding ends and identical as the caliber of connecting pin is used.

Preferably, the caliber of bellows is gradually reduced by welding ends, bellows segment to using connecting pin.

Preferably, the welding ends caliber of bellows and the caliber of use connecting pin are less than the caliber of bellows segment.

Preferably, direction of the welding ends from intermediate tube to bellows piece expands in arc transition；Using connecting pin by wave Line pipe to use connecting pin port direction in arc transition reduce.

Compared with prior art, the advantages and positive effects of the present invention are:

Bellows provided by the utility model, by the way of welded connecting, it is ensured that whole consistent of bellows Property, avoid condensing agent from revealing.On the other hand, bellows uses different materials, in the premise for guaranteeing bellows normal use Under, the manufacturing cost of bellows can be reduced.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model bellows；

Fig. 2 is the structural schematic diagram of the utility model bellows；

Fig. 3 is the structural schematic diagram of the utility model bellows；

Fig. 4 is the structural schematic diagram of the utility model bellows；

In above each figure: 1- intermediate tube, 2- bellows, 201- bellows segment, 202- welding ends, 203- use connecting pin, 2031- variable diameter coupling tube, 2032- conical pipe, 2033- pipe end.

Specific embodiment

In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments In.

In the description of the present invention, it should be noted that term " two sides ", " side ", " left side ", " right side " etc. refer to The orientation or positional relationship shown is positional relationship based on the figure, is merely for convenience of description the utility model and simplification is retouched It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, Therefore it should not be understood as limiting the present invention.

A kind of corrugated connecting tube, for connecting the indoor unit and outdoor unit of air-conditioning, including intermediate tube 1 and setting and intermediate tube The bellows 2 of 1 one or both sides.With reference to Fig. 1, the structural schematic diagram of bellows 2 is set for 1 side of intermediate tube；With reference to Fig. 2, it is The structural schematic diagram of 1 two sides of intermediate tube setting bellows 2.Several sections of bellowss are specifically set, the use work of tubing is depended primarily on Condition, that is, the specific installation operating condition of air-conditioning.

Bellows 2 includes bellows segment 201, the welding ends 202 connecting with intermediate tube 1 and the use opposite with welding ends 202 Connecting pin 203, it is different from traditional structure of integrated bellows, pass through between the welding ends 202 of intermediate tube 1 and bellows 2 It is welded to connect, and, intermediate tube 1 and bellows 2 are made of different materials.For example, in the present embodiment, the material of intermediate tube 1 For aluminium, the material of bellows 2 is copper.In use due to bellows 2, it is often necessary to be bent, therefore, bellows 2 uses The copper material production that bending performance is good, hardness is relatively high, and not bending when the use of intermediate tube 1, therefore relatively using cost Low aluminium material production.

The utility model further provides for the structure of several bellowss, and the main distinction is bellows segment 201, welding ends 202 With the difference with the caliber for using connecting pin 203, it is primarily adapted for use in unacceptable air-conditioner installation condition.

With reference to Fig. 3, the bellows segment 201 of bellows 2, welding ends 202 are identical with using the caliber of connecting pin 203.

With reference to Fig. 4, bellows 2 includes two parts pipeline section using connecting pin 203, and a part is to cooperate with bellows segment 201 Variable diameter coupling tube 2031, a part is the conical pipe 2032 that connect with variable diameter coupling tube 2031, and the end of conical pipe 2032 is Pipe end 2033, pipe end 2033 are non-reducer pipe for connecting with air conditioner.In the present embodiment, conical pipe 2032 is close to bellows segment The caliber of 201 sides is less than the caliber using end, forms a kind of structure of similar taper, variable diameter coupling tube 2031 is by bellows piece 201 are gradually reduced to 2032 caliber of conical pipe, and in order to reduce flow resistance, arc inner wall is can be used in variable diameter coupling tube 2031 Pipe.In conjunction with specific operating condition, the bellows 2 of the bellows 2 of intermediate tube side or two sides can be designed as pyramidal structure.

It is less than the pipe of bellows segment 201 with reference to Fig. 2,202 caliber of welding ends of bellows 2 and using the caliber of connecting pin 203 Diameter.Specifically, welding ends 202 expands from intermediate tube 1 to the direction of bellows piece 201 in arc transition, and arc transition expands Part is formed as welding ends 202；Using connecting pin 203 from bellows 2 to use connecting pin port direction in arc transition reduce, Arc transition reduces part and is formed as using connecting pin 203.

The bellows 2 of the above concentrated form is for adapting to different installation operating conditions.

The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.

Claims

1. a kind of corrugated connecting tube, it is characterised in that: the bellows including intermediate tube and setting and intermediate tube one or both sides, institute State bellows include bellows segment, with the welding ends of intermediate tube connection and opposite with welding ends use connecting pin, the intermediate tube Pass through welded connecting between the welding ends of bellows.

2. corrugated connecting tube as described in claim 1, it is characterised in that: intermediate tube and bellows are made of different materials.

3. corrugated connecting tube as claimed in claim 2, it is characterised in that: the material of intermediate tube is aluminium, and the material of bellows is Copper.

4. corrugated connecting tube as described in claim 1, it is characterised in that: the bellows segment of the bellows, welding ends and with make It is identical with the caliber of connecting pin.

5. corrugated connecting tube as described in claim 1, it is characterised in that: the caliber of the bellows is by welding ends, bellows segment It is gradually reduced to using connecting pin.

6. corrugated connecting tube as described in claim 1, it is characterised in that: the welding ends caliber of the bellows and use connection The caliber at end is less than the caliber of bellows segment.

7. corrugated connecting tube as claimed in claim 6, it is characterised in that: welding ends is in from intermediate tube to the direction of bellows piece Arc transition expands；Using connecting pin from bellows to use connecting pin port direction in arc transition reduce.