CN206801904U - A kind of double air channel cooling air blowers - Google Patents
A kind of double air channel cooling air blowers Download PDFInfo
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- CN206801904U CN206801904U CN201720253035.5U CN201720253035U CN206801904U CN 206801904 U CN206801904 U CN 206801904U CN 201720253035 U CN201720253035 U CN 201720253035U CN 206801904 U CN206801904 U CN 206801904U
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Abstract
The utility model discloses a kind of double air channel cooling air blowers, including main casing, the inside of main casing is provided with fixing bearing, impeller unit is installed in fixing bearing, air blower coil is also equipped with inside main casing, the first air vent and the second air vent of connection main casing intracoelomic cavity are offered on main casing, the outside wall surface of the air blower coil and the internal face of main casing form the first cooling air channel, and the internal face of the air blower coil and the outside wall surface of impeller unit form the second cooling air channel.This kind of double air channels cooling air blower has the advantages of perfect heat-dissipating, can extend not available for the existing products such as air blower service life.
Description
Technical field
A kind of New blower is the utility model is related to, particularly a kind of double air channel cooling air blowers.
Background technology
Air blower is a kind of application apparatus common in industrial production.Air blower mainly passes through its impeller unit at work
Wind is advertised away from outlet pipe, and then realizes various production requirements.
With requirement more and more higher of the industrial production to air blower, the power of air blower is also increasing, and then causes existing
The caloric value of some high power air blowers is increasing.Excessive heating not only has a strong impact on the stability of air blower, together
When also accelerate the rate of wear of air blower various parts, and then can cause air blower that the life-span is greatly shortened.
In view of this, the purpose of this utility model is that provide a kind of new technical scheme lacks to solve existing technology
Fall into.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of double air channel cooling air blowers, solves existing
There are the skills existing for existing product such as the existing heating of air blower is excessive, heat dispersion is insufficient, parts loss is fast, service life is short
Art defect.
Technical scheme is used by the utility model solves its technical problem：
A kind of double air channel cooling air blowers, including air blower mounting shell, the air blower mounting shell include main casing, institute
State main casing and its hollow cavity is separated into three for a metal casting part with hollow cavity, being internally provided with for main casing
The middle position of partial first partition and second partition, the first partition and second partition is offered for installing bearing
Bearing mounting hole, be mounted on fixing bearing on the two bearings mounting hole, impeller dress be installed in two fixing bearing
Put, the cavity between the first partition and second partition is the coil installation cavity for installing coil, the coil installation cavity
The air blower coil of size matching is inside installed, is enclosed on the axis part of impeller unit outside the air blower coil, described first
Have on the left of dividing plate and be used for from the suction muffler of external air suction and connected with the suction muffler and be used for the air blast chamber of air blast, the master
Housing is provided with the blast pipe connected with the air blast chamber outside it, has the second suction muffler on the right side of the second partition, the
Two dividing plates are extended with to the right the second suction muffler spacing block, and the middle position of the second suction muffler spacing block has a through hole, and second
Suction muffler spacing block is enclosed with the second air blast chamber, is provided with cooling channel pipe outside the main casing, the cooling channel pipe with
Second air blast chamber connection, the main casing is located at the madial wall of coil installation cavity and is provided with two at it is used for set winding
The first internal projecting ring and the second internal projecting ring, it is logical that first is offered on the main casing between first internal projecting ring and the second internal projecting ring
Air holes, offers the second air vent on the main casing between second internal projecting ring and second partition, first air vent and
Second air vent is connected with coil installation cavity, and connection coil installation cavity and second suction muffler are offered on the second partition
Third venting hole, the ventilation through the coil installation cavity of its both sides is offered on first internal projecting ring and the second internal projecting ring
The internal face of hole, the outside wall surface of the air blower coil and main casing forms the first cooling air channel, the air blower coil it is interior
The outside wall surface of wall and impeller unit forms the second cooling air channel.
As the improvement of above-mentioned technical proposal, the cooling air entered by the first air vent inside main casing can pass through air blast
The first cooling air channel that the internal face of the outside wall surface of machine coil and main casing is formed, then the cooling air is again by first
Other regions that passage on bulge loop and the second internal projecting ring enters inside coil installation cavity；Wherein, by the second internal projecting ring
The cooling air that passage passes through can be entered in the second suction muffler by the third venting hole on second partition and inhaled by second
Air cavity enters the second air blast chamber and flows out main casing eventually through cooling channel pipe；The cooling entered in the first cooling air channel
Air can be flowed into the second cooling air channel by the passage on the first internal projecting ring and on the left of air blower coil, cold into second
But the cooling air in air channel takes away heat inside air blower from the third venting hole on the second partition on the right side of air blower coil
Enter in the second suction muffler and the second air blast chamber is entered by the second suction muffler and flows out main casing eventually through cooling channel pipe
Body.
As the further improvement of above-mentioned technical proposal, the main casing bottom is provided with support feet, and main casing top is set
It is equipped with handle.
As the further improvement of above-mentioned technical proposal, the impeller unit includes impeller axle, the impeller axle both ends point
The first spider and the second spider are not provided with, and the first impeller is separately installed with first spider and the second spider
And second impeller, first impeller include impeller sleeve and the first blade for being arranged on impeller sleeve and being spaced apart and the
Two blades, the length of second blade are less than the length of the first blade, and first blade replaces spiral shell in the same direction with the second blade
Rotation extension, second impeller include impeller sleeve and are arranged on the third blade on impeller sleeve and being spaced apart and the 4th
Blade, the length of the quaterfoil are less than the length of third blade, and the third blade replaces spiral in the same direction with quaterfoil
Extension, first blade, the second blade, third blade and quaterfoil are arc-shaped curved surface blade, the impeller axle and the
One spider and the second spider are formed in one metalwork, the impeller sleeve and the first blade of first impeller and the second leaf
Piece is to be integrally formed Al-alloy parts through what five-axis machine tool was process, the impeller sleeve of second impeller and third blade and the
Quaterfoil is to be integrally formed Al-alloy parts through what five-axis machine tool was process, first blade, the second blade, third blade and
The hollow fine and close chamber with blade surface isolation is distributed with quaterfoil inner homogeneous.
As the further improvement of above-mentioned technical proposal, first impeller and the second impeller be separately mounted to suction muffler and
In second air blast chamber.
As the further improvement of above-mentioned technical proposal, the impeller axle is provided with it close to one end of the first spider
Aid in block plate.
As the further improvement of above-mentioned technical proposal, the impeller axle is provided with it close to one end of the second spider
It is easy to the positioning convex ring of location and installation.
As the further improvement of above-mentioned technical proposal, inside the impeller axle there is impeller axle to run through through hole.
As the further improvement of above-mentioned technical proposal, first impeller is fixed on impeller axle by the first fixed block
One end, second impeller are fixed on the other end of impeller axle by the second fixed block.
As the further improvement of above-mentioned technical proposal, the fixing bearing is air suspension bearing.
The beneficial effects of the utility model are：The utility model provides a kind of double air channel cooling air blowers, this kind of double wind
Road cooling air blower is provided with the first cooling air channel and the second cooling air channel, passes through first cooling air channel and the second cooling wind
Road can significantly lift the cooling capacity of air blower, have the advantages of perfect heat-dissipating, can be in time by the heating of air blower from drum
Outside is taken to inside the main casing of blower fan, avoids air blower from being damaged because generating heat excessive.This kind of double air channels cooling air blower solves
The existing products such as the existing heating of existing air blower is excessive, heat dispersion is insufficient, parts loss is fast, service life is short are present
Technological deficiency.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of another angle of the utility model；
Fig. 3 is the structure sectional view in A-A directions in Fig. 2；
Fig. 4 is the structural representation of air blower mounting shell in the utility model；
Fig. 5 is the structural representation of another angle of air blower mounting shell in the utility model；
Fig. 6 is the structure sectional view in B-B directions in Fig. 5；
On Fig. 7 in the utility model impeller unit structural representation；
Fig. 8 is the structural representation of another angle of impeller unit in the utility model；
Fig. 9 is the structure sectional view in C-C directions in Fig. 8.
Embodiment
Design, concrete structure and caused technique effect of the present utility model are entered below with reference to embodiment and accompanying drawing
Row clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
Simply part of the embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, this area
The other embodiment that technical staff is obtained on the premise of not paying creative work, belong to the model of the utility model protection
Enclose.In addition, all connection/annexations being related in patent, not singly refer to component and directly connect, and refer to can be according to specific
Performance, by adding or reducing couple auxiliary, to form more excellent draw bail.Each skill in the utility model creation
Art feature, can be with combination of interactions, reference picture 1-9 on the premise of not conflicting conflict.
A kind of double air channel cooling air blowers, including air blower mounting shell 1, the air blower mounting shell 1 include main casing 11,
The main casing 11 is a metal casting part with hollow cavity, and being internally provided with for main casing 11 separates its hollow cavity
Into the first partition 12 and second partition 13 of three parts, the middle position of the first partition 12 and second partition 13 opens up
There is the bearing mounting hole 14 held for installation axle, fixing bearing 3 is mounted on the two bearings mounting hole 14, described two fix
Impeller unit 2 is installed, the cavity between the first partition 12 and second partition 13 is the line for installing coil on bearing 3
Installation cavity 111 is enclosed, the air blower coil 4 of size matching is installed in the coil installation cavity 111, outside the air blower coil 4
Be enclosed on the axis part of impeller unit 2, the left side of first partition 12 have be used for from the suction muffler 112 of external air suction and with institute
Suction muffler 112 is stated to connect and be provided with outside it and the air blast chamber for the air blast chamber 113 of air blast, the main casing 11
The blast pipes 15 of 113 connections, the right side of the second partition 13 have the second suction muffler 114, and second partition 13 is extended with to the right the
Two suction muffler spacing blocks 131, the middle position of the second suction muffler spacing block 131 have through hole, the second suction muffler spacing block
131 are enclosed with the second air blast chamber 115, are provided with cooling channel pipe 16 outside the main casing 11, the cooling channel pipe 16 with
The second air blast chamber 115 connects, and the main casing 11 is located at the madial wall of coil installation cavity 111 and is provided with two and is used at it
The first internal projecting ring 116 and the second internal projecting ring 117 of set winding, between the internal projecting ring 117 of the first internal projecting ring 116 and second
The first air vent 118 is offered on main casing 11, is opened on the main casing 11 between second internal projecting ring 117 and second partition 13
Provided with the second air vent 119, the air vent 119 of the first air vent 118 and second connects with coil installation cavity 111, described
The third venting hole of connection coil installation cavity 111 and the second suction muffler 114, first internal projecting ring are offered on second partition 13
116 and second the passage through the coil installation cavity 111 of its both sides, the air blower line are offered on internal projecting ring 117
The outside wall surface of circle 4 forms the first cooling air channel 5, the internal face and impeller of the air blower coil 4 with the internal face of main casing 11
The outside wall surface of device 2 forms the second cooling air channel 6.
Preferably, the cooling air entered by the first air vent 118 inside main casing 11 can be by the outer of air blower coil 4
The first cooling air channel 5 that the internal face of wall and main casing 11 is formed, then the cooling air pass through the first internal projecting ring 116 again
And other regions that the second passage on internal projecting ring 117 enters inside coil installation cavity 111；Wherein, by the second internal projecting ring 117
On the cooling air that passes through of passage can be entered by the third venting hole on second partition 13 in the second suction muffler 114 simultaneously
Second air blast chamber 115 is entered by the second suction muffler 114 and flows out main casing 11 eventually through cooling channel pipe 16；Enter
Cooling air in first cooling air channel 5 can flow into by the passage on the first internal projecting ring 116 and from the left side of air blower coil 4
To the second cooling air channel 6, the cooling air into the second cooling air channel 6 takes away heat inside air blower from air blower coil 4
Third venting hole on the second partition 13 on right side enters in the second suction muffler 114 and enters by the second suction muffler 114
Two air blast chambers 115 simultaneously flow out main casing 11 eventually through cooling channel pipe 16.
Preferably, the bottom of main casing 11 is provided with support feet 17, and the top of main casing 11 is provided with handle 18.
Preferably, the impeller unit 2 includes impeller axle 21, and the both ends of impeller axle 21 are respectively arranged with the first spider
211 and second spider 212, the first impeller 22 and are separately installed with the spider 212 of the first spider 211 and second
Two impellers 23, first impeller 22 include impeller sleeve and the first blade 221 for being arranged on impeller sleeve and being spaced apart
With the second blade 222, the length of second blade 222 is less than the length of the first blade 221, first blade 221 and the
Two blades 222 alternately extend spirally in the same direction, and second impeller 23 includes impeller sleeve and is arranged on impeller sleeve and is spaced
The third blade 231 and quaterfoil 232 of distribution, the length of the quaterfoil 232 are less than the length of third blade 231, institute
State third blade 231 and replace in the same direction with quaterfoil 232 and extend spirally, first blade 221, the second blade 222, the 3rd leaf
Piece 231 and quaterfoil 232 are arc-shaped curved surface blade, the spider 211 of impeller axle 21 and first and the second spider 212
Be formed in one metalwork, and the impeller sleeve of first impeller 22 and the first blade 221 and the second blade 222 are through five axle machines
What bed was process is integrally formed Al-alloy parts, impeller sleeve and third blade 231 and the quaterfoil of second impeller 23
232 be to be integrally formed Al-alloy parts, first blade 221, the second blade 222, the 3rd leaf through what five-axis machine tool was process
The hollow fine and close chamber with blade surface isolation is distributed with piece 231 and the inner homogeneous of quaterfoil 232.
Preferably, the impeller 23 of the first impeller 22 and second is separately mounted to the air blast chamber 115 of suction muffler 112 and second
In.
Preferably, the impeller axle 21 is provided with auxiliary block plate 213 at it close to one end of the first spider 211.
Preferably, the impeller axle 21 is provided with it close to one end of the second spider 212 is easy to determining for location and installation
Position bulge loop 214.
Preferably, there is impeller axle to run through through hole 215 for the inside of impeller axle 21.
Preferably, first impeller 22 is fixed on one end of impeller axle 21, second leaf by the first fixed block 24
Wheel 23 is fixed on the other end of impeller axle 21 by the second fixed block 25.
Preferably, the fixing bearing 3 is air suspension bearing.
At work, the first impeller 22 in the impeller unit 2 is in suction muffler 112 by air from drum for this kind of air blower
Enter blast pipe 15 and from drum outside blower fan in suction suction muffler 112 and by the gas in suction muffler 112 by the air blast of air blast chamber 113
To be supplied away in airduct 15, second impeller 23 is arranged in the second air blast chamber 115, under the blasting action of the second impeller,
Air is entered inside main casing 11 from the first passage 118, and is internally formed the first cooling air channel 5 and in main casing 11
Two cooling air channels 5, the cold air inside main casing 11 is externally entering by the first cooling air channel 5 and the second cooling wind
Heat caused by air blower internal work can be taken away during road 6, carry the air of heat from the threeway on second partition 13
Air holes enters in the second suction muffler 114 and is entered the second air blast chamber 115 by the second suction muffler 114 and led to eventually through cooling
Airduct 16 flows out main casing 11.
Above-mentioned Double-cooling wind channel structure can significant increase air blower heat dispersion, help to make air blower to keep good
Performance and extend air blower service life.
Above is preferably implement to be illustrated to of the present utility model, but the utility model is created and is not limited to institute
Embodiment is stated, those skilled in the art can also make a variety of be equal on the premise of without prejudice to the utility model spirit
Deformation is replaced, and these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
- A kind of 1. double air channel cooling air blowers, it is characterised in that：Including air blower mounting shell (1), the air blower mounting shell (1) Including main casing (11), the main casing (11) is a metal casting part with hollow cavity, and the inside of main casing (11) is set Be equipped with the first partition (12) and second partition (13) that its hollow cavity is separated into three parts, the first partition (12) and The middle position of second partition (13) offers the bearing mounting hole (14) for installing bearing, the two bearings mounting hole (14) fixing bearing (3) is mounted on, impeller unit (2), the first partition are installed on two fixing bearing (3) (12) cavity between second partition (13) is the coil installation cavity (111) for installing coil, the coil installation cavity (111) the air blower coil (4) of size matching is installed in, the axis of impeller unit (2) is enclosed on outside the air blower coil (4) Part, first partition (12) left side, which has, to be used for from the suction muffler (112) of external air suction and with the suction muffler (112) even Lead to and be used for the air blast chamber (113) of air blast, the main casing (11) is provided with what is connected with the air blast chamber (113) outside it Blast pipe (15), second partition (13) right side have the second suction muffler (114), and second partition (13) is extended with to the right second Suction muffler spacing block (131), the middle position of the second suction muffler spacing block (131) have through hole, and the second suction muffler separates Block (131) is enclosed with the second air blast chamber (115), and cooling channel pipe (16), the cooling are provided with outside the main casing (11) Ventilation duct (16) connects with the second air blast chamber (115), and the main casing (11) is located at coil installation cavity (111) at it Madial wall is provided with two the first internal projecting rings (116) and the second internal projecting ring (117) for being used for set winding, first internal projecting ring (116) the first air vent (118), second internal projecting ring are offered on the main casing (11) between the second internal projecting ring (117) (117) the second air vent (119), first air vent are offered on the main casing (11) between second partition (13) (118) and the second air vent (119) is connected with coil installation cavity (111), and communication line is offered on the second partition (13) Enclose the third venting hole of installation cavity (111) and the second suction muffler (114), first internal projecting ring (116) and the second internal projecting ring (117) passage through the coil installation cavity (111) of its both sides, the outer wall of the air blower coil (4) are offered on Face and the internal face of main casing (11) form the first cooling air channel (5), the internal face and impeller unit of the air blower coil (4) (2) outside wall surface forms the second cooling air channel (6).
- A kind of 2. double air channel cooling air blowers according to claim 1, it is characterised in that：Entered by the first air vent (118) Entering the internal cooling air of main casing (11) can be formed by the outside wall surface and the internal face of main casing (11) of air blower coil (4) The first cooling air channel (5), then the cooling air is again by the first internal projecting ring (116) and the second internal projecting ring (117) Passage enters other internal regions of coil installation cavity (111)；Wherein, passed through by the passage on the second internal projecting ring (117) Cooling air can be entered by the third venting hole on second partition (13) in the second suction muffler (114) and by the second air-breathing Chamber (114) enters the second air blast chamber (115) and flows out main casing (11) eventually through cooling channel pipe (16)；Enter first Cooling air in cooling air channel (5) can be by the passage on the first internal projecting ring (116) and on the left of air blower coil (4) The second cooling air channel (6) is flowed into, the cooling air into the second cooling air channel (6) takes away heat inside air blower from air blast The third venting hole on second partition (13) on the right side of machine coil (4) is entered in the second suction muffler (114) and by the second air-breathing Chamber (114) enters the second air blast chamber (115) and flows out main casing (11) eventually through cooling channel pipe (16).
- A kind of 3. double air channel cooling air blowers according to claim 2, it is characterised in that：Main casing (11) the bottom peace Equipped with support feet (17), main casing (11) top is provided with handle (18).
- A kind of 4. double air channel cooling air blowers according to claim 3, it is characterised in that：The impeller unit (2) includes Impeller axle (21), impeller axle (21) both ends are respectively arranged with the first spider (211) and the second spider (212), described It is separately installed with the first impeller (22) and the second impeller (23) on first spider (211) and the second spider (212), described One impeller (22) includes impeller sleeve and the first blade (221) for being arranged on impeller sleeve and being spaced apart and the second blade (222), the length of second blade (222) is less than the length of the first blade (221), first blade (221) and second Blade (222) in the same direction alternately extends spirally, second impeller (23) include impeller sleeve and be arranged on impeller sleeve and Every the third blade (231) and quaterfoil (232) of distribution, the length of the quaterfoil (232) is less than third blade (231) Length, the third blade (231) replaces in the same direction with quaterfoil (232) to be extended spirally, first blade (221), Two blades (222), third blade (231) and quaterfoil (232) are arc-shaped curved surface blade, the impeller axle (21) and first Spider (211) and the second spider (212) are formed in one metalwork, the impeller sleeve and first of first impeller (22) Blade (221) and the second blade (222) are to be integrally formed Al-alloy parts, second impeller through what five-axis machine tool was process (23) impeller sleeve is to be integrally formed aluminium through what five-axis machine tool was process with third blade (231) and quaterfoil (232) Alloy components, first blade (221), the second blade (222), third blade (231) and quaterfoil (232) inner homogeneous point It is furnished with the hollow fine and close chamber with blade surface isolation.
- A kind of 5. double air channel cooling air blowers according to claim 4, it is characterised in that：First impeller (22) and Two impellers (23) are separately mounted in suction muffler (112) and the second air blast chamber (115).
- A kind of 6. double air channel cooling air blowers according to claim 5, it is characterised in that：The impeller axle (21) is leaned at it One end of nearly first spider (211) is provided with auxiliary block plate (213).
- A kind of 7. double air channel cooling air blowers according to claim 6, it is characterised in that：The impeller axle (21) is leaned at it One end of nearly second spider (212) is provided with the positioning convex ring (214) for being easy to location and installation.
- A kind of 8. double air channel cooling air blowers according to claim 7, it is characterised in that：Have inside the impeller axle (21) There is impeller axle to run through through hole (215).
- A kind of 9. double air channel cooling air blowers according to claim 8, it is characterised in that：First impeller (22) passes through First fixed block (24) is fixed on one end of impeller axle (21), and second impeller (23) is fixed by the second fixed block (25) The other end in impeller axle (21).
- A kind of 10. double air channel cooling air blowers according to claim 9, it is characterised in that：The fixing bearing (3) is sky Gas suspension bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253035.5U CN206801904U (en) | 2017-03-15 | 2017-03-15 | A kind of double air channel cooling air blowers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253035.5U CN206801904U (en) | 2017-03-15 | 2017-03-15 | A kind of double air channel cooling air blowers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206801904U true CN206801904U (en) | 2017-12-26 |
Family
ID=60730474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720253035.5U Active CN206801904U (en) | 2017-03-15 | 2017-03-15 | A kind of double air channel cooling air blowers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206801904U (en) |
-
2017
- 2017-03-15 CN CN201720253035.5U patent/CN206801904U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180615 Address after: 313100 No. 1 Changxin Avenue, Changxing County Economic Development Zone, Huzhou, Zhejiang, 1 Patentee after: Xi Chuan suspension technology (Zhejiang) Co.,Ltd. Address before: 215300 room 3, 168 de Pu Road, Zhangpu Town, Kunshan, Suzhou, Jiangsu. Patentee before: Yin Hairi |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190930 Address after: 214205 Hengdao 128, Yixing Environmental Science Park, Wuxi City, Jiangsu Province Patentee after: Haituobin suspension technology (Jiangsu) Co.,Ltd. Address before: 313100 No. 1 Changxin Avenue, Changxing County Economic Development Zone, Huzhou, Zhejiang, 1 Patentee before: Xi Chuan suspension technology (Zhejiang) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 128, Hengtong Road, huankeyuan, Yixing, Wuxi, Jiangsu, 214205 Patentee after: Jiangsu haituobin Future Industrial Technology Group Co.,Ltd. Address before: No. 128, Hengtong Road, huankeyuan, Yixing, Wuxi, Jiangsu, 214205 Patentee before: Hitobin future industrial group Co.,Ltd. Address after: No. 128, Hengtong Road, huankeyuan, Yixing, Wuxi, Jiangsu, 214205 Patentee after: Hitobin future industrial group Co.,Ltd. Address before: No. 128, Hengtong Road, huankeyuan, Yixing, Wuxi, Jiangsu, 214205 Patentee before: Haituobin suspension technology (Jiangsu) Co.,Ltd. |