CN203695810U - Refrigeration equipment, flute-shaped pipe thereof and hole drawing and flanging equipment for flute-shaped pipe - Google Patents
Refrigeration equipment, flute-shaped pipe thereof and hole drawing and flanging equipment for flute-shaped pipe Download PDFInfo
- Publication number
- CN203695810U CN203695810U CN201420104537.8U CN201420104537U CN203695810U CN 203695810 U CN203695810 U CN 203695810U CN 201420104537 U CN201420104537 U CN 201420104537U CN 203695810 U CN203695810 U CN 203695810U
- Authority
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- China
- Prior art keywords
- tube
- bourdon
- hole
- inner mould
- mould head
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- 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.)
- Withdrawn - After Issue
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 13
- 238000000465 moulding Methods 0.000 claims description 8
- 239000003507 refrigerant Substances 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 238000012545 processing Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 238000002910 structure generation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses hole drawing and flanging equipment for a flute-shaped pipe and further discloses refrigeration equipment and the flute-shaped pipe thereof. A locating block rides on the flute-shaped pipe through a fit surface, and an outer die hole is coaxial with a preformed hole; a telescopic cylinder is firmly connected with the locating block; an inner die head enters the flute-shaped pipe, the sectional area of the inner die head is changed gradually from one end to the other end along the axial direction of the preformed hole, and the small end can extend out of the flute-shaped pipe through the preformed hole; a drive shaft passes through a guide hole and the outer die hole in sequence and is detachably connected with the small end, and the drive shaft is capable of moving along the guide hole along with a piston rod of a telescopic cylinder so as to enable the peripheral wall of the inner die head and the outer die hole to extrude the flute-shaped pipe wall to form a flange with the preset shape. When the inner die head moves relatively to the locating block along with the drive shaft, the peripheral wall of the inner die head and the outer die hole extrude the pipe wall at the four sides of the preformed hole to enable the pipe wall to generate plastic deformation to form the flange structure with the preset shape. Compared with the prior art, the hole drawing and flanging equipment is capable of lowering the crack risk of the flange structure. The flange of the flute-shaped pipe is prepared through the hole drawing and flanging equipment.
Description
Technical field
The utility model relate to pipe fitting tube wall flanging bore pull out hole flanging technical field, particularly a kind of refrigeration plant and bourdon's tube thereof, bourdon's tube pull out hole flanging equipment.
Background technology
Bourdon's tube is mainly used in refrigeration plant, its role is to refrigerant to be delivered to each function element of refrigeration plant, the water distribution pipeline of such as cooling tower etc.
Bourdon's tube comprises body and multiple flanging bore, multiple flanging bores vertically successively compartment of terrain be opened in the tube wall of body, wherein, the turnup structure of flanging bore mainly pulls out hole flanging equipment by bourdon's tube and processes.
At present conventional bourdon's tube comprises aluminium bourdon's tube and copper bourdon's tube, for these two kinds of material bourdon's tubes to pull out hole flanging equipment and technology quite ripe.But along with being growing more intense of market competition, based on considering of the factor such as cost and quality, increasing enterprise selects to adopt stainless steel bourdon's tube to replace aluminium bourdon's tube and copper bourdon's tube.Owing to comparing with copper with aluminium, stainless ductility is poor, adopts existing pulling out after hole flanging equipment is processed the bourdon's tube turnup structure of this material to find, produces many Cracks at turnup structure place.Obviously,, due to the above-mentioned mass defect of bourdon's tube, very easily cause in actual applications the leakage problems of refrigerant.
In view of this, those skilled in the art urgently look for another way research and development a kind of bourdon's tube pull out hole flanging equipment, to reduce the risk of stainless steel bourdon's tube turnup structure generation crackle.
Utility model content
For above-mentioned defect, the utility model provides a kind of flute shape hole to pull out hole flanging equipment, to reduce the risk of stainless steel bourdon's tube turnup structure generation crackle.On this basis, the utility model also provides a kind of bourdon's tube that adopts above-mentioned bourdon's tube to pull out the processing of hole flanging equipment, and comprises the refrigeration plant of this bourdon's tube.
In order to solve the problems of the technologies described above, bourdon's tube provided by the utility model pulls out hole flanging equipment, comprise locating piece, telescoping cylinder, driving shaft and inner mould head, wherein, locating piece have outer nib and with the suitable mating surface of bourdon's tube periphery wall, locating piece rides on bourdon's tube by this mating surface, and makes the pre-manufactured hole in outer nib and flute shape hole coaxial; Telescoping cylinder is fixedly connected on locating piece and has pilot hole; Inner mould head stretches in bourdon's tube, and along the area of section gradual change of the axial one of pre-manufactured hole end to the other end, and small end can be stretched out in outside bourdon's tube by pre-manufactured hole; Driving shaft removably connects through the small end of pilot hole and outer nib and inner mould head successively, and can move along pilot hole with the piston rod of telescoping cylinder, so that the periphery wall of inner mould head and outer nib extruding bourdon's tube tube wall form the flange of reservation shape.
The operating process that hole flanging equipment is pulled out in above-mentioned flute shape hole comprises: first, inner mould head is stretched in flute shape hole and move to pre-manufactured hole to be processed place; Secondly, the locating piece that is fixedly connected with telescoping cylinder is ridden on bourdon's tube, and make outer nib and pre-manufactured hole coaxial; Then, complete removably connecting of driving shaft and inner mould head, and guarantee that the small end of inner mould head is stretched out in outside bourdon's tube by pre-manufactured hole; Finally, start telescoping cylinder its driving shaft is moved along pilot hole with its piston rod, so that the periphery wall of inner mould head and outer nib extruding bourdon's tube tube wall form the flange of reservation shape.
To sum up, this programme adopts the inner mould head, locating piece and the driving mechanism that cooperatively interact, again by limiting the concrete structure of inner mould head, in process, inner mould head with respect to locating piece with in driving shaft moving process, there is plastic deformation in its periphery wall and outer nib extruding pre-manufactured hole periphery tube wall, forms the turnup structure of reservation shape gradually.With turnup structure in prior art by axially putting on along pre-manufactured hole compared with tube wall instant impact forms, adopt the said equipment can reduce the risk of turnup structure generation crackle, thereby not only can worked copper, aluminium bourdon's tube, be particularly useful for the turnup structure of the poor bourdon's tubes of ductility such as processing stainless steel.
In preferred version of the present utility model, pilot hole runs through cylinder body and the piston rod of telescoping cylinder, driving shaft is overlapped in the end face of piston rod by described cylinder body external part by axial limiting piece, and pilot hole and driving shaft matched in clearance, between the two the gap value of matched in clearance be enough to make inner mould head and pre-manufactured hole coaxial.
This programme is by limiting the concrete assembly technology of driving shaft and expansion link, in the course of work, can make driving shaft move radially with respect to bourdon's tube, thereby can make this equipment possess self-centering function, can guarantee that inner mould head and pre-manufactured hole are coaxial, thereby can make the turnup structure of pre-manufactured hole periphery be consistent along the axial length, and then can improve further the quality of bourdon's tube entirety.
In another preferred version of the present utility model, the inner mould head that above-mentioned bourdon's tube pulls out hole flanging equipment extends to form the section of moulding admittedly vertically, and the area of section of the section of moulding is equal admittedly vertically.
Inner mould head moves to behind large end with respect to flute shape hole, then makes turnup structure keep a segment distance in the section of moulding admittedly, thereby can make turnup structure plastic deformation be consolidated.
Preferably, described axial limiting part be shaped as " U " font, described driving shaft has with respect to the symmetrically arranged left limit groove of axis and right limit groove, the left arm of described axial limiting part and right arm can be passed by described left limit groove and described right limit groove respectively; Described axial limiting part is by its interlude and left arm end and right arm end and described piston rod overlap joint.
Preferably, described driving shaft and described inner mould head removably connect by suitable internal thread and external screw thread, and the one in described internal thread and described external screw thread is arranged at described driving shaft, and another one is arranged at described inner mould head.
Preferably, also comprise pusher, for described inner mould head being pushed in described bourdon's tube and moving to corresponding described pre-manufactured hole place.
Preferably, described pusher comprises the push rod and the fixed block that are fixedly connected with, and the large end of described fixed block and described inner mould head coordinates by suitable positive stop lug boss and limited impression, to limit the rotation of described inner mould head with respect to described fixed part; In described positive stop lug boss and described limited impression, one is arranged at described fixed block, and another one is arranged at described inner mould head.
The utility model also provides a kind of bourdon's tube, and this bourdon's tube comprises body and multiple flanging bore, and multiple flanging bores are opened in the tube wall of body vertically successively, and the turnup structure of this flanging bore has bourdon's tube as above to pull out hole flanging equipment to process.
The utility model also provides a kind of refrigeration plant in addition, comprises the bourdon's tube for delivery of refrigerant, and this bourdon's tube is specially above-mentioned bourdon's tube.
Accompanying drawing explanation
Fig. 1 shows bourdon's tube provided by the utility model and pulls out hole flanging equipment and be positioned at the structural representation before processing;
Fig. 2 shows bourdon's tube shown in Fig. 1 and pulls out the structural representation of reprint equipment in hole in process.
Corresponding relation in Fig. 1 and Fig. 2 between Reference numeral and all parts title:
1 bourdon's tube, 1b pre-manufactured hole, 2 locating pieces, the outer nib of 2a, 3 piston cylinders, 3c pilot hole, 31 cylinder bodies, 32 piston rods, 33 Hydraulic Stations, 4 inner mould heads, 5 driving shafts, 6 axial limiting parts, 7 pushers, 71 fixed blocks.
The specific embodiment
Core of the present utility model is, provides a kind of bourdon's tube to pull out hole flanging equipment, to be mainly applicable to the turnup structure of the poor material bourdon's tube of the ductility such as processing stainless steel, processes thereby solve existing equipment the mass defect that causes flange to crack.On this basis, the utility model also provides a kind of and adopts this bourdon's tube to pull out the bourdon's tube of hole flanging equipment processing and comprise the refrigeration plant of this bourdon's tube.
Now, in conjunction with Figure of description, illustrate that bourdon's tube provided by the utility model pulls out the concrete structure schematic diagram of hole flanging equipment.It should be noted that; in this programme, the middle noun of locality " outward " of " outer nib " and " inner mould head " and " interior " are to set take the inside and outside wall of bourdon's tube tube wall as benchmark in process; therefore, the appearance of the above-mentioned noun of locality does not limit protection domain of the present utility model.
Refer to Fig. 1 and Fig. 2, wherein, Fig. 1 shows bourdon's tube provided by the utility model and pulls out hole flanging equipment and be positioned at the structural representation before processing, and Fig. 2 shows bourdon's tube shown in Fig. 1 and pulls out the structural representation of hole reprint equipment in process.
As shown in Figure 1, the bourdon's tube 1 that this programme provides pulls out hole flanging equipment, comprise locating piece 2, telescoping cylinder 3, inner mould head 4 and driving shaft 5, wherein, locating piece 2 have outer nib 2a and with the suitable arc surface of bourdon's tube 1 periphery wall, locating piece 2 rides on bourdon's tube 1 by arc surface, and makes the pre-manufactured hole 1b of outer nib 2a and bourdon's tube 1 coaxial; Telescoping cylinder 3 is fixedly connected with locating piece 2 and has a pilot hole 3c; Inner mould head 4 can stretch in bourdon's tube 1, axially goes up the area of section gradual change of its one end to the other end along pre-manufactured hole 1b, and small end can be stretched out in outside bourdon's tube 1 by pre-manufactured hole 1b; Driving shaft 5 can be successively through outer nib 2a and pilot hole 3c and with the small end thread connection of inner mould head 4, and can move along pilot hole 3c with respect to locating piece 2 with piston rod 32, so that the periphery wall of inner mould head 4 coordinates extruding bourdon's tube 1 tube wall to form the flange of reservation shape with outer nib.Pull out the operation principle of hole flanging equipment for the ease of understanding bourdon's tube 1, please also refer to Fig. 2.
The operating process that hole flanging equipment is pulled out in above-mentioned flute shape hole comprises: first, inner mould head 4 is stretched in flute shape hole and move to pre-manufactured hole 1b to be processed place, and inner mould head 4 one ends are stretched out in outside bourdon's tube 1 by pre-manufactured hole 1b; Secondly, the locating piece 2 that is fixedly connected with telescoping cylinder 3 is ridden on bourdon's tube 1, and make outer nib and pre-manufactured hole 1b coaxial; Then, completing driving shaft 5 is threaded with inner mould head 4; Finally, start telescoping cylinder 3 by the Hydraulic Station 33 of controlling telescoping cylinder 3, make driving shaft 5 move to inner mould head 4 entirety with its piston rod 32 along pilot hole 3c and remove bourdon's tube 1.
To sum up, this programme adopts locating piece 2, inner mould head 4 and driving mechanism, again by limiting the concrete structure of inner mould head 4, in process, inner mould head 4 with respect to locating piece 2 with in driving shaft 5 moving process, there is plastic deformation in its periphery wall and outer nib 2a extruding pre-manufactured hole 1b periphery tube wall, forms the turnup structure of reservation shape gradually.With turnup structure in prior art by axially putting on along pre-manufactured hole compared with tube wall instant impact forms, adopt the said equipment can reduce the risk of turnup structure generation crackle, thereby not only can worked copper, aluminium bourdon's tube, be particularly useful for the turnup structure of the poor bourdon's tubes of ductility such as processing stainless steel.
Further, the pilot hole 3c that above-mentioned bourdon's tube 1 pulls out hole flanging equipment runs through cylinder body 31 and the piston rod 32 of telescoping cylinder 3, driving shaft 5 is overlapped in piston rod 32 by axial limiting piece and is stretched out the end face of end by cylinder body 31, and pilot hole 3c and driving shaft 5 matched in clearance, between the two the gap value of matched in clearance be enough to make inner mould head 4 and pre-manufactured hole 1b coaxial.
Particularly, as shown in Figure 1, one end of driving shaft 5 is threaded with inner mould head 4, the other end offers symmetrically arranged left limit groove and right limit groove vertically, axial limiting part 6 be shaped as " U " font, when assembling, the left arm of axial limiting part 6 and right arm can be passed by left limit groove and right limit groove respectively; Axial limiting part 6 overlaps by its interlude and left arm end and right arm end and piston rod 32.
This programme is by further limiting connected mode and the assembly technology of driving shaft 5 and piston rod 32, can make driving shaft 5 there is radial floating amount with respect to telescoping cylinder 3, this radial floating amount guarantees that inner mould head 4 is coaxial with pre-manufactured hole 1b, this bourdon's tube pulls out hole flanging equipment and possesses self-centering's function, thereby can guarantee that turnup structure is consistent along the axial length, and then can further improve the quality of bourdon's tube 1 entirety.
It should be noted that, in this programme, driving shaft 5 is connected by the axial limiting part 6 of said structure with piston rod 32, has easy accessibility, feature simple in structure.Be appreciated that and possess with respect to telescoping cylinder 3 on the basis of radial floating function, processing and assembly technology requirement meeting driving shaft 5, other modes that also can adopt by floating clamp or those skilled in the art between the two connect.Certainly, this connected mode has realized the function that driving shaft 5 rotates with respect to locating piece 2 simultaneously, to realize the thread connection relation of driving shaft 5 and inner mould head 4.
In addition, as previously mentioned, driving shaft 5 and inner mould head 4 in this programme pass through thread connection, particularly, as shown in Figure 1, the end of driving shaft 5 has internal thread, correspondingly, suitable external screw thread is arranged on inner mould head 4 with it, makes driving shaft 5 rotate the installation that can complete both with respect to locating piece 2.Be appreciated that and meeting on the basis of processing and assembly technology requirement, suitable internal and external screw thread also can oppositely arrange, and internal thread is arranged at driving shaft 5, and external screw thread is arranged at inner mould head 4.
Certainly, realize the mode that removably connects of connected piece by thread connection, have processing technology simple, connect reliable feature, removably connect between the two on the basis of function, processing and assembly technology requirement meeting driving shaft 5 and inner mould head 4, also can adopt the conventional modes that removably connect such as the conventional clamping in this area between the two.
Further, please continue referring to Fig. 1, the large end of inner mould head 4 extends to form the section of moulding admittedly vertically, and the section of moulding area of section vertically equates admittedly.
Inner mould head 4 moves to behind large end with respect to flute shape hole, then makes turnup structure keep a segment distance in the section of moulding admittedly, thereby can make turnup structure plastic deformation be consolidated, and then improves closer bourdon's tube 1 total quality.
Because bourdon's tube 1 specification is various, for some caliber compared with little or body length compared with for long bourdon's tube 1, in view of size limits, inner mould head 4 stretches in body and moves to correspondingly pre-manufactured hole 1b This move cannot be by manually completing, in this programme, bourdon's tube 1 pulls out hole flanging equipment and also comprises pusher for this reason, described inner mould head 4 is pushed in described bourdon's tube 1 and move to corresponding described pre-manufactured hole 1b place by this servicing unit, to expand the scope of application of this equipment, and along bourdon's tube 1 body length direction, pusher length is greater than the diameter of described body.
Pusher comprises the push rod and the fixed block 7 that are fixedly connected with, fixed block 7 is connected with rotary spacing boss by suitable rotary spacing groove with inner mould head 4, be threaded in process at driving shaft 5 and inner mould head 4, to limit the rotation of driving shaft 5 with inner mould head 4.Particularly, rotary spacing groove is the square groove that is opened in fixture, and correspondingly, rotary spacing boss is the square boss of being located at inner mould head 4.
It should be noted that, meeting driving shaft 5 and inner mould head 4, both are connected and relatively rotate on the basis of function, processing and assembly technology requirement, and rotary spacing groove and rotary spacing boss can oppositely arrange.In addition, the concrete shape of rotary spacing groove and rotary spacing boss also can be the shape such as triangle, ellipse.
Except above-mentioned bourdon's tube pulls out hole flanging equipment, the utility model also provides a kind of bourdon's tube, this bourdon's tube comprise body and vertically successively compartment of terrain be opened in multiple flanging bores of body tube wall, the flange of this flanging bore specifically pulls out hole flanging equipment by bourdon's tube as above and processes.
In addition, the utility model also provides a kind of refrigeration plant, and this refrigeration plant comprises the bourdon's tube for delivery of refrigerant, and this bourdon's tube is specially bourdon's tube as above.The primary functional elements and the operation principle thereof that are appreciated that formation refrigeration plant are identical with prior art, and those skilled in the art can realize completely based on prior art, so do not repeat them here herein.
The foregoing is only preferred embodiment of the present utility model, do not form the restriction to the utility model protection domain.Any any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (9)
1. bourdon's tube pulls out a hole flanging equipment, it is characterized in that, comprising:
Locating piece (2), have outer nib (2a) and with the suitable mating surface of described bourdon's tube (1) periphery wall, described locating piece (2) can ride in described bourdon's tube (1) by described mating surface upper, and makes described outer nib (2a) coaxial with the pre-manufactured hole (1b) of described bourdon's tube (1);
Telescoping cylinder (3), is fixedly connected with described locating piece (2), and has pilot hole (3c);
Inner mould head (4), can stretch in described bourdon's tube (1), along the axially area of section gradual change of one end to the other end of pre-manufactured hole (1b), and small end can be stretched out in outside described bourdon's tube (1) by described pre-manufactured hole (1b);
Driving shaft (5), can removably connect with the small end of described inner mould head (4) through described outer nib (2a) and described pilot hole (3c) successively, and can move along described pilot hole (3c) with respect to described locating piece (1) with the piston rod of described telescoping cylinder (3) (32), so that the periphery wall of described inner mould head (4) and described outer nib (2a) push the flange of described bourdon's tube (1) tube wall formation reservation shape.
2. bourdon's tube as claimed in claim 1 pulls out hole flanging equipment, it is characterized in that, described pilot hole (3c) runs through cylinder body (31) and the piston rod (32) of described telescoping cylinder (3), and described driving shaft (5) is overlapped on the end face of described piston rod (32) by described cylinder body (31) external part by axial limiting part (6); Described driving shaft (5) and described pilot hole (3c) matched in clearance, and the gap value of both matched in clearance is enough to make described inner mould head (4) and described pre-manufactured hole (1b) coaxially.
3. bourdon's tube as claimed in claim 2 pulls out hole flanging equipment, it is characterized in that, described axial limiting part (6) be shaped as " U " font, described driving shaft (4) has with respect to the symmetrically arranged left limit groove of axis and right limit groove, and the left arm of described axial limiting part (6) and right arm can be passed by described left limit groove and described right limit groove respectively; Described axial limiting part (6) is by its interlude and left arm end and right arm end and described piston rod (32) overlap joint.
4. bourdon's tube pulls out hole flanging equipment as claimed any one in claims 1 to 3, it is characterized in that, the large end of described inner mould head (4) extends to form the section of moulding admittedly vertically, and the described section of moulding admittedly area of section vertically equates.
5. bourdon's tube pulls out hole flanging equipment as claimed any one in claims 1 to 3, it is characterized in that, described driving shaft (5) and described inner mould head (4) removably connect by suitable internal thread and external screw thread, one in described internal thread and described external screw thread is arranged at described driving shaft (5), and another one is arranged at described inner mould head (4).
6. bourdon's tube as claimed in claim 5 pulls out hole flanging equipment, it is characterized in that, also comprise pusher, locate described inner mould head (4) pushed in described bourdon's tube (1) and to move to corresponding described pre-manufactured hole (1b), along bourdon's tube (1) body length direction, described pusher length is greater than the diameter of described body.
7. bourdon's tube as claimed in claim 6 pulls out hole flanging equipment, it is characterized in that, described pusher comprises the push rod and the fixed block (7) that are fixedly connected with, the large end of described fixed block (7) and described inner mould head (4) is by suitable rotary spacing boss and rotary spacing groove fit, to limit the rotation of described inner mould head (4) with respect to described fixed block (7);
In described rotary spacing boss and described rotary spacing groove, one is arranged at described fixed block (71), and another one is arranged at described inner mould head (4).
8. a bourdon's tube, described bourdon's tube comprises body and multiple flanging bore, multiple described flanging bores spaced apart tube wall of being located at described body successively vertically, it is characterized in that, the turnup structure of each described flanging bore pulls out hole flanging equipment by the bourdon's tube described in any one in claim 1 to 7 and makes.
9. a refrigeration plant, comprises the carrier pipe for delivery of refrigerant, it is characterized in that, described carrier pipe is specially bourdon's tube as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420104537.8U CN203695810U (en) | 2014-03-07 | 2014-03-07 | Refrigeration equipment, flute-shaped pipe thereof and hole drawing and flanging equipment for flute-shaped pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420104537.8U CN203695810U (en) | 2014-03-07 | 2014-03-07 | Refrigeration equipment, flute-shaped pipe thereof and hole drawing and flanging equipment for flute-shaped pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203695810U true CN203695810U (en) | 2014-07-09 |
Family
ID=51046309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420104537.8U Withdrawn - After Issue CN203695810U (en) | 2014-03-07 | 2014-03-07 | Refrigeration equipment, flute-shaped pipe thereof and hole drawing and flanging equipment for flute-shaped pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203695810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831366A (en) * | 2014-03-07 | 2014-06-04 | 烟台荏原空调设备有限公司 | Refrigerating equipment, flute-shaped tube thereof, and flute-shaped tube hole pulling and flanging equipment |
-
2014
- 2014-03-07 CN CN201420104537.8U patent/CN203695810U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831366A (en) * | 2014-03-07 | 2014-06-04 | 烟台荏原空调设备有限公司 | Refrigerating equipment, flute-shaped tube thereof, and flute-shaped tube hole pulling and flanging equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yongda road 265500 Shandong province Yantai Fushan hi tech Industrial Zone No. 720 Patentee after: Ebara (Chinese) Co. Ltd and cooling system Address before: Yongda road 265500 Shandong province Yantai Fushan hi tech Industrial Zone No. 720 Patentee before: Renyuan Air Conditioner Equipment Co., Ltd., Yantai City |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140709 Effective date of abandoning: 20170829 |
|
| AV01 | Patent right actively abandoned |