CN108533850A - Damping tube - Google Patents
Damping tube Download PDFInfo
- Publication number
- CN108533850A CN108533850A CN201710129949.5A CN201710129949A CN108533850A CN 108533850 A CN108533850 A CN 108533850A CN 201710129949 A CN201710129949 A CN 201710129949A CN 108533850 A CN108533850 A CN 108533850A
- Authority
- CN
- China
- Prior art keywords
- adapter
- bellows
- wire net
- protecting wire
- extension tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/08—Tubular elements crimped or corrugated in longitudinal section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
- F16L11/115—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
Abstract
The embodiment of the present invention discloses a kind of damping tube, including bellows, adapter, extension tube attached, bellows includes the bellows main body of middle section, axially extending bellows linkage section is arranged at least one end of bellows main body, bellows linkage section is welded with adapter, adapter is welded with extension tube attached simultaneously, bellows is fixed with extension tube attached by adapter, adapter has adapter inner cavity, adapter inner cavity is connected to the inner cavity of the inner cavity of bellows and extension tube attached, damping tube further includes protecting wire net, the intermediate host of protecting wire net is set in bellows main body, the both ends of protecting wire net are fixed by protecting wire net fixing piece with adapter, protecting wire net fixing piece is fixed at the both ends of protecting wire net with adapter in a manner of compressing or clamping.The problem of bellows protecting wire net of the embodiment of the present invention is fixed with protecting wire net fixing piece with adapter, and weld corrosion is not present in protecting wire net bearing, this is conducive to improve the connection reliability between damping duct member.
Description
Technical field
The present embodiments relate to pipeline fittings, the more particularly, to damping tube in the refrigeration systems such as air conditioner, refrigeration machine.
Background technology
In application scenarios such as air conditioner, refrigeration machines, compression is connected frequently with damping tube (or shock absorbing pipe, prevention tube etc.)
The circulation line of machine and refrigeration system or other need the occasion of damping, to absorb the vibration generated by compressor and to make an uproar
Sound.
Damping tube generally comprises bellows, and in order to protect bellows, it would generally turn existing damping tube in end head welding
It takes over to be welded with copper pipe.Bellows damages in order to prevent, and the prior art can coat protecting wire net on the outside of bellows, the protecting wire net
It is fixed using welding manner and transfer tube, specifically welds protecting wire net end face and transfer tube end face.The mounting means of this protecting wire net
Under, the aerial weld seam of exposure may have the possibility of corrosion, thus affect the company of damping duct member in a way
Reliability is connect, thus there are certain rooms for improvement.
Invention content
In view of the drawbacks of the prior art, the embodiment of the present invention is designed to provide a kind of damping tube, improving damping
The connection reliability of pipe.
In order to solve the above technical problems, technical solution provided in an embodiment of the present invention is：A kind of damping tube, including ripple
Pipe, adapter, extension tube attached, the bellows include the bellows main body of middle section, at least one end of the bellows main body
Axially extending bellows linkage section is set, the bellows linkage section is welded with the adapter, the adapter simultaneously with
Extension tube attached is welded, and the bellows is fixed with the extension tube attached by the adapter, and the adapter has adapter inner cavity,
The adapter inner cavity is connected to the inner cavity of the inner cavity of the bellows and the extension tube attached, and the damping tube further includes protecting wire net,
The intermediate host of the protecting wire net is set in the bellows main body, and the both ends of the protecting wire net pass through protecting wire net fixing piece and the switching
Part is fixed, and the protecting wire net fixing piece is fixed at the both ends of the protecting wire net with the adapter in a manner of compressing or clamping.
Compared with prior art, the bellows protecting wire net in damping tube of the embodiment of the present invention uses protecting wire net fixing piece and adapter
Fixed, the problem of being welded to connect due to being not used, therefore weld corrosion is not present herein, this is conducive between raising damping duct member
Connection reliability.
Description of the drawings
Fig. 1 is a kind of schematic diagram of the damping tube of specific embodiment of technical solution of the present invention；
Fig. 2 is the axial cross-sectional views of damping tube shown in Fig. 1；
Fig. 3 is that damping tube shown in Fig. 1 removes the schematic diagram after the first extension tube attached, the second extension tube attached；
Fig. 4 is the axial cross-sectional views of damping tube shown in Fig. 3；
Fig. 5 is the schematic diagram of bellows in Fig. 1；
Fig. 6 is the axial cross-sectional views of bellows shown in Fig. 5；
Fig. 7 is the enlarged diagram of the parts I in Fig. 6；
Fig. 8 is the schematic diagram of adapter in Fig. 1；
Fig. 9 is the axial cross-sectional views of adapter shown in Fig. 8；
Figure 10 is the schematic diagram of the first extension tube attached in Fig. 1；
Figure 11 is the cooperation sectional schematic diagram of the first extension tube attached and the second extension tube attached shown in Figure 10；
Figure 12 is the enlarged diagram of the parts II in Figure 11；
Figure 13 is the schematic diagram of the first extension tube attached in Figure 11；
Figure 14 is the cooperation sectional schematic diagram of the second extension tube attached and adapter shown in Figure 12；
Figure 15 is the enlarged diagram of the parts III in Figure 13；
Figure 16 is the idiosome schematic diagram of trim ring in Fig. 1；
Figure 17 is the flow chart of the damping pipe manufacturing method of one embodiment of the invention.
Specific implementation mode
In order that those skilled in the art will better understand the technical solution of the present invention, below in conjunction with the accompanying drawings and it is specific real
The mode of applying is described in further detail.
For convenience, the present invention describes the numberical range involved in process for specification and makes definition：On the one hand, threshold
Value includes this number, as 2.5 or more for be within more than or equal to 2.5,10 equal to or less than 10, be more than -8 be more than or equal to -
8, etc.；On the other hand, approximate number or approximate number are calculated by ± the 10% of central value, and such as about 15 refer to 15 ± 10%, substantially
Refer to 3 ± 10% for 3, be equivalent to 6 and mean 120 ± 10% for 6 ± 10%, substantially 120, is 6.2 ± 10% close to 6.2 ... ...,
Etc.；And so on, it is numerous.
A kind of damping tube of specific embodiment of technical solution of the present invention is shown respectively in please referring also to Fig. 1~Figure 16
And its it bellows, adapter, takes over and the modular constructions such as the idiosome of trim ring.In the drawings, axially refer to pipe fitting axis direction,
Circumferentially refer to the circumference of vertical jointed tubular workpieces axis, the radial radius of a circle direction for the jointed tubular workpieces axis that hangs down；Outside refers to away from bellows
Side, inside are close to the side of bellows.Hereafter as non-specifically indicated, it is related to defining by this when above-mentioned term.
Please referring also to Fig. 1~Fig. 4, the damping tube of the embodiment of the present invention is by bellows 1, adapter 3a (the first switchings
Part), adapter 3b (the second extension tube attached), extension tube attached 5 (the first extension tube attached), extension tube attached 6 (the second extension tube attached), woven network tube 2 and
The components such as trim ring 4a, trim ring 4b are constituted, wherein：Since adapter 3a, adapter 3b use identical structure in the present embodiment, because
Both this is simply indicated with adapter 3 sometimes, and does not differentiate between 3a, 3b；Similarly, because trim ring 4a, trim ring 4b are using identical
Structure, therefore also simply indicated sometimes with adapter 4, and do not differentiate between 4a, 4b；In addition damping tube can also be wherein side
Using the structure of this kind of adapter or trim ring, the one of the one end being especially connected with vibroseis or relatively close vibroseis
End.The basic structure and function of each component are as described below in damping tube.
The structure of bellows 1 refers to Fig. 5~Fig. 7 comprising the bellows main paragraph 11 of middle section, bellows main body
Axially extend bellows linkage section 12a (the first bellows linkage section), bellows linkage section 12b (the second waves in the both ends of section 11
Line pipe linkage section), linkage section herein is also held sometimes as extended segment, they are tubular structure, their length is under normal circumstances
Between 5mm~10mm；In addition in the case where bellows is bigger, length can be appropriately extended；And it is particularly compact in structure
In the case of, the length of bellows linkage section 12b can be between 3mm~6mm.It is noted that due to the present embodiment medium wave
Line pipe linkage section 12a, bellows linkage section 12b use identical structure, therefore unify to be indicated with bellows linkage section 12 sometimes, and
12a, 12b are not differentiated between, in addition the both sides of bellows linkage section may not be symmetrical structure.
As shown in Figure 1, adapter 3a, adapter 3b, wherein adapter is respectively welded in the outboard end of bellows linkage section 12a
3a connections extension tube attached 5, adapter 3b connections extension tube attached 6；Between bellows linkage section 12a, extension tube attached 5 and adapter 3a, and
It is tentatively fixed or is limited respectively between bellows linkage section 12b, extension tube attached 6 and adapter 3b, can specifically be matched with transition
(design parameter is chosen as conjunction：The axis of cooperation is+0.03/0；The hole of cooperation is+0.04/0) mode assemble, and assembly is completed
It is welded later using welding manner in continuous tunnel furnace stove, it is described in detail below；In addition it can also fix or limit using tooling
The mode of position is assembled, and assembly is welded using welding manner in continuous tunnel furnace stove；It can also use and get fixation ready
Mode or wherein some component setting protrusion mode make to be relatively fixed or limit between adapter, bellows, extension tube attached,
Assembly is welded using welding manner in continuous tunnel furnace stove again, damping can be made than gas brazing by being welded using continuous tunnel furnace
The consistency of pipe is relatively more preferable, and adapter, bellows, extension tube attached weld the influence completed compared with separated welding on materials simultaneously
Smaller.
The structure of adapter 3 refers to Fig. 8~Fig. 9, and adapter 3 has an adapter inner cavity 32, the adapter inner cavity 32 with
The inner cavity of bellows 1 is connected to, and solder portion is accordingly arranged for placing solder (not shown) in adapter inner cavity 32 in adapter.
Bellows linkage section 12a, extension tube attached extension tube attached 5 joint section difference socket joint in the inner cavities adapter 3a both ends adapter coordinate
Portion, it is in throat structure that guide section i.e. part, which can be arranged, in bellows linkage section 12a, extension tube attached 5.It is bellows linkage section 12b, external
The joint section of pipe 6 distinguishes socket joint
Transition coordinates, and will not scatter when being placed into continuous tunnel furnace in this way, also additional tooling no longer be needed to fix.In addition, bellows connects
It connects and is equipped with clearance portion between the inner cavity wall portion coordinated between section and adapter, coordinate between the joint section and adapter of extension tube attached
Inner cavity wall portion also is provided with clearance portion.In this way, the solder being positioned in adapter inner cavity can be made accordingly to flow into after being melted down when welding
It is realized to the clearance portion between the joint section and adapter of clearance portion and extension tube attached between bellows linkage section and adapter
Welding.
As shown in Figure 1, bellows 1 can also configure woven network tube 2, further to protect the bellows in damping tube
1, woven network tube 2 can protect the outside of bellows 1, not will have a direct impact on bellows 1, woven network tube 2 when by outer damage
Specific optional stainless steel mesh grid set, with relatively good intensity and toughness.After each pipe fitting completes welding, by woven network tube
It is set in 2 clad types bellows main paragraph 11, two ends of the woven network tube 2 are rotated respectively into trim ring 4a, trim ring 4b, and
So that trim ring is deformed in a manner of squeezing trim ring idiosome, woven network tube 2 is thus made to be fixedly connected with trim ring, adapter, such trim ring
The welding procedure of trim ring 4a, trim ring 4b need not be eliminated again with adapter or bellows-welding.Conveniently, Fig. 1
Lateral impression 40 on middle trim ring 4 is that illustration shows this part, they can be eliminated by polishing shaping, no longer superfluous
It states.
As shown in Fig. 1~Fig. 2, which optimizes the welding structure of damping tube, and weldment includes a ripple
Pipe 1, two adapter 3a, 3b and two extension tube attacheds 5,6, wherein：Extension tube attached 5 can be common external for what is connect with system
Such as copper pipe is managed, in this way in the case where system body is copper material, is conducive to damping tube and is connect with system；Extension tube attached 6 can be
Extension tube attached with expansion mouth, they are respectively arranged with extension tube attached joint section 52,62, specifically as shown in Figure 10~Figure 15.Two
Adapter 3a, 3b can place solder, the bellows linkage section 12a of 1 one end of bellows respectively in 32 specific position of adapter inner cavity
Coordinate with the adapter auxiliary section on the inside of adapter 3a, the adapter auxiliary section on the outside of extension tube attached joint section 52 and adapter 3a
Cooperation；Similarly, the bellows linkage section 12b of the other end coordinates with adapter auxiliary section of the socket joint on the inside of adapter 3b, outside
Adapter auxiliary section on the outside of union nipple section 62 and adapter 3b coordinates, and thus bellows 1 can divide with two extension tube attacheds 5,6
Welding is not fixed through continuous tunnel furnace welding by adapter 3a, 3b.
The basic process of the damping tube includes the following steps：Solder is placed respectively in the inner cavity of adapter 3a, 3b, and
By the joint section of bellows linkage section 12a, 12b of bellows 1, extension tube attached 5,6 respectively in the manner described above with corresponding adapter
Auxiliary section cooperation is placed, and after these component assemblings are at an entirety, the assembly being assembled into is made to be carried out in stove by continuous tunnel furnace
Welding is completed in soldering, in addition can also be uniformly placed in tooling (not shown) through continuous tunnel furnace or other integrally molded equipment
As vacuum welding chamber or gas shielded welding room are welded.In welding process, solder can flow into bellows connection after being melted down
Gap between section 12a, extension tube attached joint section 52 and the inner cavity of adapter 3a and bellows linkage section 12b, external pipe fitting
Gap between section 62 and the inner cavity of adapter 3b, is achieved in bellows 1 and corresponding two adapters 3a, 3b and extension tube attached
5,6 welding.
It is worth noting that, to ensure that solder is flowed into bellows linkage section 12a, 12b, extension tube attached joint section 52,62 and
Gap between the corresponding auxiliary sections adapter 3a, 3b inner cavity, should rationally design these gap parameters：Gap is too small, may make
Solder can not effectively be permeated；Gap is excessive, and solder may penetrate adapter cooperation end surface, thereby result in outside weld seam
Dew, influences welding quality.In the present embodiment, in the present embodiment, the fit clearance of bellows linkage section and adapter, bellows connect
The fit clearance for connecing section and adapter is respectively：The fit clearance length of bellows linkage section and adapter is bellows linkage section
The fit clearance length of the 2 times or more of wall thickness, extension tube attached joint section and adapter is the 2 times or more of extension tube attached joint section wall thickness.
In a specific embodiment, these fit clearances are 0.025mm~0.15mm, and fit clearance length is 5mm~15mm, in this way
Welding can be made relatively reliable, ensureing solder, effect is permeated as expected.
The characteristics of this welding manner is：Weld seam is located at the outer wall of corresponding bellows linkage section 12a, 12b, extension tube attached 5,6
Between the outer wall of joint section and the adapter auxiliary section of the inner cavities corresponding adapter 3a, 3b, i.e., weld seam is located inside adapter.Weld seam
Bare area it is relatively small, and weld seam is located inside damping tube, it is internal in actual use may be fluid media (medium) (such as
Internal flow is refrigerant when for refrigeration system), thus weld seam will not be exposed in air, to reduce weld seam and sky
The potential difference corrosion of gas contact；Meanwhile entire damping tube can only need primary welding can be completed, relative to gas brazing,
Avoid bellows, extension tube attached and corresponding adapter multiple welding, weld seam consistency is preferable；Due to these two aspects because
Element, is effectively improved damping tube welding quality, and the connection between product component is more reliable.In addition, integrally molded also simplify
Welding sequence improves efficiency.
As shown in Figure 3, Figure 4, it is a kind of damping tube assembly of reduced form.As it was noted above, the embodiment in Fig. 1, Fig. 2 will
1, two adapter 3a, 3b of one bellows and two progress of extension tube attached extension tube attacheds 5,6 are integrally molded, obtain complete damping tube
Component.It is understood that in the actual production process, party in request can be answered to need only to turn an above-mentioned bellows 1, two
Fitting 3a, 3b are integrally molded to carry out, and the component of a reduced form is consequently formed, is specifically shown in Fig. 3, Fig. 4.This reduced form is made
After damping tube assembly, can further by it to compressor in refrigeration system, circulating line or other need the corresponding of damping occasion
Pipe fitting is welded, and to reach corresponding damping effect, details are not described herein.In addition, the embodiment of the present invention can also be ripple
The side of pipe is welded with adapter, extension tube attached, and the other side is fixed with corresponding adapter and welded.
As shown in Fig. 5~Fig. 7, bellows 1 is preferably made of stainless steel comprising bellows main paragraph 11 and wave
Line pipe linkage section 12, wherein：Bellows main paragraph 11 has more than two telescopic joints, can compensate pipe fitting because of temperature change etc.
The dilatation that factor generates, the parameters such as wherein inside diameter of bel D1, outside diameter of bel D2, thickness of convolution t, pitch of waves q need to be according to external
System element determines.A kind of selection mode of bellows 1 is in the present embodiment：Outer welding system caliber is 1/2 inch, ripple tube wave
Shape can be U-shaped or Ω shapes, overall length 225mm, caliber 12A, pipe range 151mm, bellows 0.2 ± 0.01mm of wall thickness, ripple
Bore D1 is 12 ± 0.2mm, and outside diameter of bel D2 is 18 ± 0.2mm, wave height 3.0mm, 2.0 ± 0.15mm of the thickness of convolution, and thickness of convolution t is
2.0 ± 0.15mm, pitch of waves q are 3.0 ± 0.15mm, thus to obtain more satisfied damping and silencing effect；It certainly also can be according to outer
Welding system overall performance index sets other parameters.Herein, bellows linkage section 12a, 12b are located at bellows main paragraph
It 11 both ends can be with extension tube attached 5, extension tube attached 6 after being packed into adapter 3a, 3b；Alternatively, directly with its in refrigeration system
Its external devices is welded.
It is understood that bellows 1 may will produce certain flexible when using, the stroke that stretches may when excessive
Generate damage.Bellows 1 can be configured with woven network tube 2, be specifically as follows stainless steel mesh grid, have preferable strong
Degree and toughness can achieve the purpose that protect bellows 1；Certainly, braiding pipe network can also the protecting wire nets of other forms replace, example
Such as aluminium alloy protecting wire net.As shown in Figure 1 to 4, woven network tube 2 is set in bellows main paragraph 11, end and adapter 3a,
3b is fixed, and the bellows 1 of damping tube can be prevented to be stretched beyond a certain range.Specifically, the outer wall of adapter 3a, 3b is opened respectively
If adapter unit with grooves in outer wall 33 (such as Fig. 8, Fig. 9), wherein this can be pressed in woven network tube 2 by being packed into trim ring 4a, 4b
Adapter unit with grooves in outer wall 33.The assembly method of this woven network tube 2 operates relatively simple, and structural reliability is preferable.Due to
Trim ring 4a, 4b be using crimping by the way of make woven network tube, adapter realize fix, and be no longer by welding manner, i.e., without
It need to be welded again, thus avoid the problem of former welding position repeats welding and is likely to occur weld defect.
As shown in Fig. 8~Fig. 9, adapter 3 is specially to be designed for damping tube of the present invention.Each adapter 3 includes switching
Part ontology 31, to connect bellows 1 and extension tube attached 5 or extension tube attached 6.The adapter ontology 31 can be by stainless steel material or purple
Copper product makes, can be by being obtained to idiosome Vehicle Processing in technique, or can also be formed by processing and forming.Adapter ontology
31 there is adapter inner cavity 32, adapter inner cavity 32 to be connected to the inner cavity of bellows 1 and the inner cavity of corresponding extension tube attached 5,6, and turn
Two ends of fitting inner cavity 32 are respectively set adapter auxiliary section 321, adapter auxiliary section 322 and are packed into bellows 1 to correspond to
It is welded with extension tube attached 5 or 6.Preferably, the welding cooperation between each bellows linkage section and corresponding adapter auxiliary section
Length is 1/3 or more of bellows linkage section outer diameter, between each extension tube attached joint section and corresponding adapter auxiliary section
1/3 or more that length of fit is extension tube attached joint section outer diameter is welded, extends fusion length in this way, is conducive to increase welding
Intensity.Certainly, the length of fit of these pipe fittings can respective range be adjusted, repeat no more.
When above-mentioned adapter 3 is welded with bellows 1 and extension tube attached 5 or 6, be conducive to improve welding quality, reason
It is：By bellows 1 and corresponding extension tube attached 5 or 6 is encased in respective tube adapter auxiliary section 321, adapter auxiliary section 322 carries out
When welding, their weld seam is located at corresponding bellows linkage section 12, the joint section outer wall of extension tube attached 5 or extension tube attached 6 and switching
Between the adapter auxiliary section of 32 both sides of part inner cavity, weld seam is hardly overflowed in the end face of adapter inner cavity 32, is thus avoided
Or weld seam bare area is reduced, and weld seam is located in pipe, thus the influence of potential difference etching problem is avoid or reduced, thus
Improve pipe fitting connection reliability.
It can between bellows linkage section 12, extension tube attached 5 or extension tube attached 6 and the corresponding adapter auxiliary section of adapter inner cavity 32
Think clearance fit, in addition or the mode of body transition cooperation is had it is possible thereby to be welded using modes such as stove welderings
For body：Solder is placed in the inner cavity solder placement section of adapter 3 in advance, then will be in extension tube attached, bellows 1 and adapter 3
The cooperation assembling of chamber auxiliary section, then entire component is subjected to stove weldering by soldering furnace or welding booth, or entire component is fixed on work
It loads onto and stove weldering is carried out by soldering furnace or welding booth.After solder fusing, adapter auxiliary section 321 and outer is flowed under capillary action
Between faying face, adapter fit inside portion 322 and the faying face of bellows 1 taken over, it is achieved in and is welded and fixed.
Specifically, the position of the solder placement section of each adapter 3 is as shown in Figure 8, Figure 9, wherein adapter inner cavity 32
Adapter inner convex platform 323 is arranged in middle part, which protrudes from the setting of adapter inner wall part, adapter inner convex platform
323 projecting height can be slightly larger than or the projecting height of the wall thickness equal to extension tube attached or adapter inner convex platform 323 can omit
More than or equal to the wall thickness of bellows linkage section.Solder is placed in two ends of the adapter inner convex platform 323 as placement section,
Solder can be flowed into the faying face gap between the outer wall of bellows linkage section 12 and adapter inner cavity 32 after being melted down.
It is understood that being also similar between extension tube attached 5 or extension tube attached 6 and adapter 3.Specifically, in adapter
Adapter inner convex platform 323, the switching is arranged in chamber 32 on the outside of adapter between auxiliary section 321 and adapter fit inside portion 322
The wall thickness of the height of part inner convex platform 323 and 1 linkage section of wall thickness and bellows of extension tube attached joint section can also be consistent, here unanimously
Refer to that the two difference is no more than 10%.So that the internal equivalent diameter of extension tube attached, the internal equivalent diameter of adapter inner convex platform, ripple
The internal equivalent diameter size difference of pipe is no more than 10%, so as not to change the latus rectum size of entire damping tube, prevents fluid motion
It adversely affects.It, thus can be at this point, the both ends of adapter inner convex platform 323 are respectively as solder portion 324, solder portion 325
Corresponding solder (generally weld-ring) of placing comes to adapter auxiliary section 321 and extension tube attached 5 or 6 and 322 and of adapter auxiliary section
Auxiliary section faying face between bellows 1 is welded, so that extension tube attached 5 or 6, bellows 1 become one by adapter 3
A entirety.
As previously mentioned, woven network tube 2 can be arranged to prevent from damaging in the above damping tube.In a kind of embodiment, woven network tube 2
For the braiding net sleeve of stainless steel, angle of weave is 40 °~60 °, and coverage rate is 75%~95%, and intensity and toughness compare reason
Think.Not using welding when the woven network tube 2 is fixed, for this purpose, the present embodiment has also carried out adaptability reform for adapter 3.Such as
Shown in Fig. 8, Fig. 9, adapter ontology 31 during fabrication can by going out adapter unit with grooves in outer wall 323 to idiosome outer wall Vehicle Processing,
The both sides of the adapter unit with grooves in outer wall 323 form adapter outer wall flange 311, adapter outer wall flange 322.In other words,
First adapter outer wall flange 311, the second adapter outer wall flange can be respectively set in the both ends of 31 outer wall of adapter ontology
322, adapter unit with grooves in outer wall 323 is constituted between the first adapter outer wall flange 311 and the second adapter outer wall flange 322.
The adapter unit with grooves in outer wall 323 is used for being packed into trim ring 4a, 4b, by the way that bellows 1 can be configured to the idiosome extruding of trim ring 4
Woven network tube 2 be installed in adapter unit with grooves in outer wall 313, wherein 41 end face of trim ring idiosome and 33 both sides of adapter unit with grooves in outer wall
The medial surface of flange part is combined closely, and thus increases pressing friction power to fix woven network tube 2.This woven network tube fixed form
Due to being not necessarily to weld, weld defect is thus avoided.In addition adapter ontology 31 can be in one end of outer wall, that is, relatively close ripple
One end setting adapter outer wall flange 311 of pipe, and the other end can choose whether setting adapter outer wall flange.In addition,
Other woven network tube fixing piece such as network folders etc. can be selected to be fixed.
As shown in Figure 8, Figure 9, first adapter outer wall flange 311, the second adapter outer wall flange 312 can be respectively set down
Corner, wherein：The chamfered section 3111 of 311 outside setting quarter turn of first adapter outer wall flange, to facilitate trim ring 4 from the position
Set loading；The chamfered section 3121 of second adapter outer wall flange, 3121 outside setting semicircle, when woven network tube 2 covers in the position
It will not damage, chamfered section 3121 can be set in other words in 3121 inner and outer of the second adapter outer wall flange in other words
Smooth transitions or the structure that smoothly transits, to protect woven network tube 2.
As previously mentioned, extension tube attached, bellows 1 need to be pressed into matching for 3 both ends of adapter by damping tube of the present invention in assembling
Conjunction portion is welded.For the convenience of press fitting, it may be considered that the problem of setting is oriented to.If Fig. 8, Fig. 9 show, cooperation on the outside of adapter
Guide face 326 is arranged in the outer end in portion 321, is pressed into the adapter auxiliary section 321 in this way convenient for extension tube attached；Same reason, switching
The outer end in part fit inside portion 322 may also set up corresponding guide face to make extension tube attached 5 or 6 be smoothed out press fitting, not Fig. 8,
It is indicated in Fig. 9, therefore details are not described herein.
In refrigeration systems, bellows 1 and extension tube attached 5 are pressed into the corresponding adapter auxiliary section of side adapter 3 respectively,
Bellows 1 and extension tube attached 6 are pressed into the corresponding adapter auxiliary section of other side adapter 3 respectively, are then welded, medium wave
It is respectively cooperating between auxiliary section between line pipe 1 and corresponding adapter 3, extension tube attached 5 and extension tube attached 6 and corresponding adapter 3, solder
The auxiliary section faying face that can be flowed between corresponding pipe fitting and adapter 3 after fusing welds to realize.In order to easy to assembly, guarantee weldering
Connect quality, it is necessary to optimize to the structure of extension tube attached, bellows 1.
As shown in Figure 1 and Figure 2, extension tube attached 5 and extension tube attached 6 is arranged simultaneously in damping tube of the present invention, it is to be understood that certain
In the case of an extension tube attached can be only set.Illustrate between extension tube attached 5 and extension tube attached 6 and adapter 3 below in conjunction with Figure 10~15
Assembly relation.It is understood that similar structures and assembly method can also be used in bellows 1.
As shown in Figure 10~12, extension tube attached 5 can be that for example copper straight tube of copper pipe or bend pipe, external tube body 51 need to weld
One end setting extension tube attached joint section 52, the end set extension tube attached joint section guide face 54 of the extension tube attached joint section 52, wherein leading
It it is about 10 ° to angle (the busbar angle of the busbar and 51 outer wall of external tube body of extension tube attached joint section guide face 54) α, being convenient in this way will
Extension tube attached 5 is pressed the corresponding auxiliary section into adapter ontology 31.In addition, the extension tube attached 5 in Figure 10 is accessed according in outer welding system
The difference of element, it may be necessary to which expansion mouth is set.
As shown in Figure 10~Figure 12, transition may be used between extension tube attached joint section 52 and the auxiliary section of adapter ontology 31
Cooperation.For the mobility for improving when solder fusing, ensures welding quality, multiple axial directions are set on outer 52 outer wall of union nipple section
The extension tube attached unit with grooves in outer wall 53 of extension, they can be formed by way of wire drawing or rolled thread or extruding, and quantity can be external
Pipe caliber units (unit：Mm) 2~3.5 times, particular number can be depending on the size of width and extension tube attached.In addition,
The width and depth of unit with grooves in outer wall 53 can be between 0.025mm~0.15mm, and preferably 0.05mm~0.12mm, shaped cross can
Think that semicircle, arc is trapezoidal or rectangular or V-arrangement etc.；By these extension tube attached unit with grooves in outer wall 53, solder can be made to have preferable
Mobility, thus preferably ensure that welding quality.
Certainly, the side for the external pipe outer wall convex ribs (not shown) that above-mentioned extension tube attached unit with grooves in outer wall 53 can also be formed with wire drawing
Formula realizes that their shape, specification, arrangement can be similar with extension tube attached unit with grooves in outer wall 53.Make convex rib part and adapter phase
To tight fit, the flowing of solder can be realized in the position between adjacent convex rib part, has preferable mobility in welding.This
Sample, you can make to be relatively fixed or limit without the help of external tooling between extension tube attached, adapter.I.e. extension tube attached, adapter be not
It needs, by means of external tooling, to can be achieved with reliably welding, repeat no more again.It is understood that outer wall convex ribs can be other
The protrusion of form replaces.
As shown in Figure 14~Figure 16, another extension tube attached 6 is the copper straight tube with expansion mouth 65.External tube body 61 is same
It is provided with extension tube attached joint section 62, the end set extension tube attached joint section guide face 64 of the extension tube attached joint section 62, guide angle is (outside
The angle of the busbar and 61 outer wall of external tube body of union nipple section guide face 64) β is about 10 °；In addition, extension tube attached joint section 62
The axial arranged a plurality of extension tube attached unit with grooves in outer wall 63 of outer wall or external pipe outer wall convex ribs or combination thereof, quantity can be external
6 caliber units (unit of pipe：Mm) 2~3.5 times, so as to ensure solder extension tube attached 6 and corresponding adapter auxiliary section 321 it
Between have preferable mobility.Other extension tube attached structures that can refer to Figure 12~Figure 14, repeat no more.In addition, outer in Figure 12
Take over 6 is according to the difference of outward element, it is also possible to be not provided with expansion mouth.
Conveniently, above structure can also be used when bellows 1 of the invention, extension tube attached 5, extension tube attached 6 are square tube；
Correspondingly, adapter 3 is also not necessarily limited to pipe.In addition, extension tube attached 5, extension tube attached 6 are not limited to straight tube, such as their generally bend pipes
It when (auxiliary section is extension tube attached), can also be attached using aforesaid way, damping tube at this time equally has higher connection
Reliability, details are not described herein.
As shown in figure 16, trim ring 4 of the invention can be with meeting material that hardness and ductility requires (such as red copper or stainless
Steel) it is made.Cricoid trim ring idiosome 41 specifically is made in above-mentioned material, the size of endoporus 42 is recessed slightly larger than adapter outer wall
The maximum outside diameter size of 33 side flanges of slot.Assembly method is：By bellows 1, adapter 3a, 3b and extension tube attached extension tube attached 5,
After 6 welding, woven network tube 2 is wrapped into at least most of of bellows 1 and the adapter 3 at both ends, at least wraps woven network tube 2
Adapter unit with grooves in outer wall is covered, then the trim ring idiosome 41 is set at the adapter unit with grooves in outer wall 33 of adapter 3 and is set with simultaneously
In woven network tube, then its diminution, adapter is set to form the trim ring 4 of fixed woven network tube 2 by squeezing trim ring idiosome 41, this
Sample just obtains the damping tube external member with woven network tube 2.Herein, woven network tube 2 is specifically as follows stainless steel mesh grid set, braiding
Angle is 40 °~60 °, and coverage rate is 75%~95%.
It is easily understood that when processing above-mentioned trim ring idiosome 41 can in its end reset guide face 43, can facilitate in this way
Trim ring idiosome 41 is smoothly encased at the adapter unit with grooves in outer wall 33 of adapter 3 by ground.The assembly method of this woven network tube 4 saves
Welding sequence has been removed, has not only been operated relatively simple, but also structural reliability is higher.Herein, it is installed with unit with grooves in outer wall 33
Woven network tube 2, naturally it is also possible to which holding part of the other forms structure as woven network tube, this holding part can be woven network tube
2 provide the suitable frictional force of conjunction and extruding force, thus achieve the purpose that reliably to install protecting wire net woven network tube 2.For other structures
The protecting wire net of form can also use similar structures.
In above specific embodiment, bellows 1, woven network tube material can be stainless steel material, extension tube attached
5, extension tube attached 6, the material of adapter can be copper material, and such damping tube can be used for the occasion that system main material is copper material, wave
Wlding between line pipe 1 and adapter 3, extension tube attached 5 or 6 and adapter 3 can select same material such as spelter bronze, such as
A kind of specific embodiment is tin bronze solder, and solder melt point can reach 1000 degree or so, as all 980 degrees Celsius with
On, it can preferably meet the welding requirements of stainless steel and copper, in addition this solder melt point temperature is higher by common copper-based solder
It such as phos copper, needs to be welded and fixed with system even if damping tube is follow-up, since the solder melt point temperature of damping tube itself wants high
Go out 180 degree or so, so influence of the subsequent welding to damping tube also can very little.In addition bellows can also select copper material
Material.Certainly, different combinations of materials can also be used in bellows 1 and adapter 3, extension tube attached, at this time it should be noted that selection is other suitable
Wlding, such as：When being welded to aluminium alloy and stainless steel or steel, the optional aluminium of wlding, nickel, nickel alloy, titanium, titanium alloy, copper, copper close
Gold and silver in two or more, repeat no more.
In a kind of specific embodiment, the material selection red copper material of adapter, correspondingly trim ring 4 also select red copper material,
In this way, the fixation of trim ring 4 is relatively reliable.In addition, the damping tube in this specification is referred to as prevention tube or shock absorbing pipe.
In another specific embodiment, bellows 1, woven network tube material can be stainless steel, it is extension tube attached 5, external
Pipe 6, adapter material may be aluminum material, such damping tube can be used for system main material be aluminium occasion.
The damping tube of several specific embodiments of the present invention is described above, exemplary situations can be air-conditioning
The pipeline of the products such as device, refrigeration machine or automotive air-conditioning system.The compressor of refrigeration system pipeline is connected by this damping tube
With circulation line, shockproof effect can be preferably played.
The damping tube structure of the embodiment of the present invention is illustrated above, on this basis, damping tube is manufactured now
Method is described.
Figure 17 is referred to, the damping pipe manufacturing method of one embodiment of the invention is shown.In the damping pipe manufacturing method
Including：Component pretreatment process, solder place process, pipe fitting assembling procedure, woven network tube installation procedure, product handling system process
Deng, wherein the concrete operation step of each process and effect it is as follows.
1, component pretreatment process
The step obtains the satisfactory parts such as components such as bellows, adapter and extension tube attached.These parts are answered
Meet claimed below：Bellows includes the bellows main body of middle section, and at least one end setting of bellows main body is axially extending
Bellows linkage section；There is adapter adapter inner cavity, the intermediate position of adapter inner cavity solder portion, adapter inner cavity is arranged
Both ends setting adapter auxiliary section repeated no more in addition, should also include the other structures in previous corrugated pipe.These components
It can voluntarily process, it can also outsourcing.
Specifically, component pretreatment process can be omitted such as in the case of outsourcing, this process is completed by outside, tool
Body includes the processing to bellows, adapter and extension tube attached, described in detail below.
The preparation of bellows includes to the processes such as the blanking of bellows former material, chamfering, whole mouth, ultrasonic cleaning, these processes
Normal process steps operation can be used, satisfactory bellows can be obtained after completing these operations.
Adapter treatment process includes processing corresponding adapter inner cavity, adapter inner convex platform to adapter embryo material and turning
Fitting unit with grooves in outer wall, thus to obtain satisfactory adapter, can preferably as switching carrier come connect bellows and
Extension tube attached.
Extension tube attached treatment process includes being met the requirements to the blanking of extension tube attached former material, chamfering, wire drawing, ultrasonic cleaning
Extension tube attached.Usually, these extension tube attacheds can be determined whether to do flaring processing as needed.
In addition, component pretreatment process also needs to carry out the processes such as blanking, ultrasonic cleaning to woven network tube；And to pressure
Enclose the processes such as idiosome blanking, ultrasonic cleaning；Etc..After completing these work, so that it may to carry out other systems of entire damping tube
Make process, it is described below.
2, solder places process
Solder is put in the solder portion of adapter inner cavity by the process in advance.Wherein, the melting temperature of conventionally used solder
800 degrees centigrades, but to keep the welding of damping tube relatively reliable, the solder such as bronze not less than 980 degrees Celsius can be selected
Solder etc..
3, pipe fitting assembling procedure
It completes after i.e. solder is placed after above-mentioned work, pipe fitting sub-assembly to can be assembled, by adapter, bellows, extension tube attached three
Person assemble the pipe fitting sub-assembly being formed as one to carry out next few welding, and specific assembling mode is as described below.Tool
Body is to assemble these bellowss, adapter, extension tube attached etc., and bellows is made to coordinate in adapter auxiliary section with adapter,
Adapter, extension tube attached coordinate in another adapter auxiliary section so that the inner cavity connection of adapter, bellows, extension tube attached, if wave
It is that transition coordinates or is interference fitted to have part between line pipe and adapter, adapter and extension tube attached, then three is not necessarily to external tooling
It is fixed, if three's clearance fit, after limit can be fixed with external tooling, obtain pipe fitting sub-assembly.Specific assembling side
Formula can be one of the following：
Bellows, extension tube attached and adapter are assembled into one, be used in combination get ready fixed form or bellows, extension tube attached with
After the mode of one of adapter setting protrusion is fixed or limits, bellows is obtained, extension tube attached is combined with the pipe fitting of adapter
Part；
Bellows, extension tube attached and adapter are assembled into one, transition fit system is used in combination to carry out tentatively fixed or limit
Afterwards, to the pipe fitting sub-assembly of bellows, extension tube attached and adapter；
Bellows and extension tube attached are pressed by transition fit system respectively and carries out tentatively fixed in adapter or limits, and
To the pipe fitting sub-assembly of bellows, adapter and extension tube attached.Cooperation wherein between bellows linkage section and adapter auxiliary section
Gap is the 2 times or more of bellows linkage section wall thickness, and the fit clearance between extension tube attached joint section and adapter auxiliary section is outer
The 2 times or more of union nipple section wall thickness.
Later, sub-assembly can be placed in integrated welding equipment and is welded.
4, components welding process
In the process, pipe fitting sub-assembly is welded, obtains damping tube main body.Specifically, pipe fitting sub-assembly is placed
It is welded in welding equipment, more specifically such as, in continuous tunnel furnace, vacuum welding chamber or gas shielded welding room or welding case
Pipe fitting sub-assembly is welded, welding temperature, time etc. are according to these device parameters, the external pipe fitting main material of weldering and solder at this time
Deng determining.
5, net cover installation procedure
The effect for installing woven network tube is that bellows in damping tube is prevented to be damaged, and detailed process is：In damping tube master
The bellows main paragraph of body is set with woven network tube；It is placed in adapter unit with grooves in outer wall in the present embodiment woven network tube end；Braiding
Adapter unit with grooves in outer wall is fixed in woven network tube end by webmaster fixing piece, obtains prevention tube.Wherein, woven network tube fixed form
Can be：It is inserted in trim ring idiosome in the end of woven network tube, squeezing trim ring idiosome makes it deform and press the end of woven network tube
It is tightly fixed on the adapter unit with grooves in outer wall of adapter, net cover can be fixed by being not necessarily to welding in this way, thus be obtained with protective action
Prevention tube finished product.In addition the adapter unit with grooves in outer wall of adapter can also be substituted by other structures, such as in adapter close to wave
The mode of protrusion is arranged in line pipe side.
6, product handling system process
This process be alternatively, obtaining prevention tube after, can further be tested, be dried, nozzle shaping, packet
After dress, so that it may obtain the manufacture product of prevention tube.This prevention tube finished product is primary using bellows, adapter and extension tube attached three
Property stove in weld, product one is straightforward relatively good, and solder design is more reliable, and since weld seam is located on the inside of damping tube, right
The service life of product is advantageous.
The detailed description that embodiment has carried out the present invention above, but those skilled in the art are come
It says, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
Also fall into the protection domain of the claims in the present invention.
Claims (10)
1. a kind of damping tube, including bellows, adapter, extension tube attached, the bellows includes the bellows main body of middle section,
Axially extending bellows linkage section is arranged at least one end of the bellows main body, which is characterized in that the bellows connection
Section is welded with the adapter, and the adapter is welded with extension tube attached simultaneously, and the bellows passes through described with the extension tube attached
Adapter is fixed, and the adapter has an adapter inner cavity, the inner cavity of the adapter inner cavity and the bellows and described outer
The inner cavity connection taken over, the damping tube further includes protecting wire net, and the intermediate host of the protecting wire net is set in the bellows main body, institute
The both ends for stating protecting wire net are fixed by protecting wire net fixing piece and the adapter, and the protecting wire net fixing piece will in a manner of compressing or clamp
The both ends of the protecting wire net are fixed with the adapter.
2. damping tube as described in claim 1, which is characterized in that it is recessed that the outer wall of the adapter is provided with adapter outer wall
The both ends of the protecting wire net are fixed on the adapter unit with grooves in outer wall by slot, the protecting wire net fixing piece, and the adapter is leaned on opposite
The nearly bellows body side is provided with flange part, and the outside of the flange part contacted with the protecting wire net is the knot that smoothly transits
Structure, the protecting wire net fixing piece is at least partly less than the flange part and the protecting wire net fixing piece is at least partly located at described turn
Fitting unit with grooves in outer wall.
3. damping tube as described in claim 1, which is characterized in that the outer wall of the adapter is provided with holding part, the shield
The both ends of the protecting wire net are fixed on the holding part by net fixing piece, and the adapter is in the relatively close bellows main body one
Side is provided with flange part, and the holding part is located at the side for being relatively distant from the bellows main body of the flange part, described convex
The outside of edge contacted with the protecting wire net is the structure that smoothly transits, and the protecting wire net fixing piece is at least partly less than the flange
Portion and the protecting wire net fixing piece are at least partly located at the holding part.
4. damping tube as described in any one of claims 1-3, which is characterized in that the protecting wire net fixing piece is trim ring, the trim ring
With deformable trim ring idiosome, the both ends of the protecting wire net are fixed in the appearance by the trim ring idiosome by fashion of extrusion
Portion is set, not over being welded and fixed between the protecting wire net and the adapter, the protecting wire net fixing piece.
5. damping tube as claimed in claim 2, which is characterized in that the protecting wire net fixing piece is network folder, and the network folder is set in
The protecting wire net is locked at the holding part of the adapter with network folder locking member by the both ends of the wave protecting wire net, the network folder.
6. such as claims 1 to 3,5 any one of them damping tubes, which is characterized in that the protecting wire net is stainless steel mesh grid set,
The angle of weave that the stainless steel mesh grid is compiled is 40 °~60 °, and coverage rate is 75%~95%.
7. such as claims 1 to 3,5 any one of them damping tubes, which is characterized in that the adapter inner cavity is provided with switching
Part inner convex platform, the inner convex platform are located at the inner cavity of the adapter with respect to middle part, and the first side of the inner convex platform is the ripple
The weld seam of pipe linkage section, the bellows and the adapter is located at the first side of the inner convex platform；The second side of the inner convex platform
For the extension tube attached, the extension tube attached and the weld seam of the adapter are located at the inner convex platform the second side.
8. damping tube as claimed in claim 7, which is characterized in that the internal equivalent diameter of the extension tube attached, the adapter convex
The internal equivalent diameter size of the internal equivalent diameter of platform and bellows difference is no more than 10%.
9. damping tube as claimed in claim 7, which is characterized in that two end set solders of the adapter inner convex platform
Portion, and have in axially extending between the bellows linkage section, the extension tube attached joint section and corresponding adapter auxiliary section
The fit clearance of setting, the fit clearance are 0.025mm~0.15mm, and the fit clearance length is 5mm~15mm.
10. damping tube as claimed in claim 9, which is characterized in that the outer wall of the extension tube attached joint section is provided with a plurality of axis
The number of the fit clearance, the outer wall convex ribs and/or unit with grooves in outer wall is formed to the outer wall convex ribs and/or unit with grooves in outer wall of extension
Amount is 2~3.5 times of the extension tube attached caliber units, and specification is 0.05mm~0.12mm, and cross sectional shape is semicircle, arc
One of shape, trapezoidal, rectangular or V-arrangement.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129949.5A CN108533850A (en) | 2017-03-06 | 2017-03-06 | Damping tube |
| EP18763270.8A EP3594602B1 (en) | 2017-03-06 | 2018-03-06 | Vibration absorption tubing and manufacturing method thereof |
| US16/491,084 US11674620B2 (en) | 2017-03-06 | 2018-03-06 | Vibration absorption tubing and manufacturing method thereof |
| PCT/CN2018/078095 WO2018161882A1 (en) | 2017-03-06 | 2018-03-06 | Vibration absorption tubing and manufacturing method thereof |
| JP2019549405A JP6948402B2 (en) | 2017-03-06 | 2018-03-06 | Vibration control pipe and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129949.5A CN108533850A (en) | 2017-03-06 | 2017-03-06 | Damping tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108533850A true CN108533850A (en) | 2018-09-14 |
Family
ID=63489580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710129949.5A Pending CN108533850A (en) | 2017-03-06 | 2017-03-06 | Damping tube |
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| Country | Link |
|---|---|
| CN (1) | CN108533850A (en) |
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| US20080156388A1 (en) * | 2005-03-17 | 2008-07-03 | Tubest Flexible Solutions | Flexible Tube Protected Against Vibrations |
| CN201196517Y (en) * | 2008-03-18 | 2009-02-18 | 沈阳新东海制冷配件有限公司 | Refrigeration vibration absorber |
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| CN201772185U (en) * | 2010-07-20 | 2011-03-23 | 浙江鸿森机械有限公司 | Corrugated shock absorbing pipe |
| CN202532094U (en) * | 2012-03-05 | 2012-11-14 | 沈阳新东海制冷配件有限公司 | Vibration absorber |
| CN202708393U (en) * | 2012-07-18 | 2013-01-30 | 浙江中交科技有限公司 | Corrugated pipe connecting structure |
| CN206988608U (en) * | 2017-03-06 | 2018-02-09 | 新昌县四通机电有限公司 | Damping tube |
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2017
- 2017-03-06 CN CN201710129949.5A patent/CN108533850A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080156388A1 (en) * | 2005-03-17 | 2008-07-03 | Tubest Flexible Solutions | Flexible Tube Protected Against Vibrations |
| CN201196517Y (en) * | 2008-03-18 | 2009-02-18 | 沈阳新东海制冷配件有限公司 | Refrigeration vibration absorber |
| CN101539230A (en) * | 2008-03-18 | 2009-09-23 | 沈阳新东海制冷配件有限公司 | Refrigerating shock absorber |
| CN201772185U (en) * | 2010-07-20 | 2011-03-23 | 浙江鸿森机械有限公司 | Corrugated shock absorbing pipe |
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