CN217633650U - Damping device of loading equipment - Google Patents
Damping device of loading equipment Download PDFInfo
- Publication number
- CN217633650U CN217633650U CN202221964417.6U CN202221964417U CN217633650U CN 217633650 U CN217633650 U CN 217633650U CN 202221964417 U CN202221964417 U CN 202221964417U CN 217633650 U CN217633650 U CN 217633650U
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- shock
- rotating shaft
- side wall
- main body
- support
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- 238000013016 damping Methods 0.000 title claims abstract description 29
- 230000035939 shock Effects 0.000 claims abstract description 69
- 238000010521 absorption reaction Methods 0.000 claims abstract description 41
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a damping device for loading equipment, which comprises a supporting seat, a rotating shaft, a plurality of connecting frames and a damping component, wherein the supporting seat is provided with a plurality of supporting tables and a plurality of via holes; a plurality of support tables are oppositely arranged; the plurality of through holes are arranged on one side of the support platform; the rotating shaft is rotatably arranged on the supporting platform; the rotating shaft main body of the rotating shaft is arranged opposite to the through hole; the connecting frames are arranged in the through holes, at the moment, the connecting frames are connected to the rotating shaft main body of the rotating shaft in a swinging mode and swing relative to the rotating shaft main body, so that a part of energy of vibration of the same external frame in the horizontal direction can be absorbed through swinging of the connecting frames, and in addition, the damping assembly is arranged between the cross beam and the supporting seat; the shock absorption assembly comprises an elastically telescopic shock absorption rod which is elastically abutted against the lower side wall of the cross beam and elastically abutted against the plurality of connecting frames so as to absorb residual shock energy transferred to the connecting frames by the same external frame and maintain the balance state of the plurality of connecting frames.
Description
Technical Field
This application belongs to damper's technical field, especially relates to a loading equipment damping device.
Background
Along with the development of science and technology, damper progressively is applied to among conveying mechanism or the displacement mechanism, damper can be applied to among the cement carloader, damper connects in external frame, and support in external frame, external frame and the part of connecting external frame have certain dead weight, and can vibrate at the removal in-process, elastic buffer is realized through the elastic connection to external frame to current damper's link, the absorption of vibration energy is carried out through the spring part of self, and the link is immovable, and partial vibration energy can transmit to the link, make the unable release of vibration energy of link, it is relatively poor to lead to current damper's shock attenuation effect.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a loading equipment damping device to solve the relatively poor problem of current damper's shock attenuation effect.
In a first aspect, an embodiment of the present application provides a shock absorbing device for loading equipment, the shock absorbing device for loading equipment includes:
the supporting seat is provided with a plurality of supporting tables and a plurality of through holes; a plurality of the supporting tables are oppositely arranged; the plurality of via holes are arranged on one side of the support platform;
a rotating shaft rotatably mounted to the support table; the rotating shaft main body of the rotating shaft is arranged opposite to the through hole;
the connecting frames are arranged on the corresponding through holes and can be connected to the rotating shaft main body of the rotating shaft in a swinging mode; the bottoms of the connecting frames are all used for connecting the same external frame; a cross beam is connected among the connecting frames;
the damping assembly is arranged on the supporting seat and is positioned between the cross beam and the supporting seat; the shock absorption assembly comprises an elastically telescopic shock absorption rod, and the shock absorption rod is elastically abutted to the lower side wall of the cross beam.
Optionally, the damping assembly further comprises a support fixed to the support seat; the support is provided with an accommodating cavity, the damping rod is accommodated in the accommodating cavity and is elastically connected with the lower side wall of the accommodating cavity so as to elastically protrude out of the support; the upper surface of the shock absorption rod is elastically abutted to the lower side wall of the cross beam.
Optionally, the number of the cross beams and the number of the shock absorption assemblies are multiple, and the number of the cross beams and the number of the shock absorption assemblies are symmetrically arranged relative to the axis of the rotating shaft; the shock absorbing assemblies are arranged relative to the corresponding cross beam.
Optionally, the lower lateral wall of shock absorber pole with the lower lateral wall that holds the chamber is arranged relatively, the lower lateral wall of shock absorber pole with hold and be connected with the elastic component between the lower lateral wall in chamber, the both ends of elastic component elastic contact respectively the lower lateral wall of shock absorber pole with hold the lower lateral wall in chamber, the elastic component is in compression state.
Optionally, the support is provided with a through hole, and the through hole is located on the upper surface of the support;
the shock absorption rod comprises a shock absorption rod main body and an annular boss, and the shock absorption rod main body penetrates through the through hole and can stretch and retract relative to the through hole; the annular boss is annularly arranged on the outer side wall of the shock absorption rod main body and accommodated in the accommodating cavity, and the annular boss is in clearance connection with the accommodating cavity.
Optionally, the support includes a support main body and an adjusting seat, the support main body is provided with a groove, and the groove is communicated with the through hole; the adjusting seat is positioned at the lower side of the support main body and is in threaded connection with the inner side wall of the groove; an accommodating cavity with adjustable space is formed by the enclosing of the adjusting seat and the support main body.
Optionally, the outer side wall of the adjusting seat is provided with an external thread, the inner side wall of the groove far away from the through hole is provided with an internal thread, and the internal thread is in threaded connection with the external thread; the lower side wall of the adjusting seat is provided with a hexagonal boss.
Optionally, the connecting frame is provided with a butt joint hole, and an axis of the butt joint hole and a central axis of the connecting frame are in the same vertical direction; the butt joint hole can be sleeved on the rotating shaft main body in a swinging mode; the protruding spacing platform that is equipped with of lateral wall of pivot main part, the lateral wall of spacing platform is followed the axis direction butt of pivot main part the lateral wall of link
Optionally, the damping assemblies are arranged at intervals along the transverse direction of the cross beam and symmetrically arranged along the central axis direction of the vertical direction in the cross beam.
Optionally, a threaded hole is formed in the upper surface of the support table, and the threaded hole penetrates through the support table in the vertical direction and exposes the rotating shaft.
According to the damping device for the loading equipment, which is provided by the embodiment of the application, the supporting seat is provided with a plurality of supporting tables and a plurality of through holes; a plurality of support tables are oppositely arranged; the plurality of via holes are arranged on one side of the support platform; the rotating shaft is rotatably arranged on the supporting platform; the rotating shaft main body of the rotating shaft is arranged relative to the through hole; the connecting frames are arranged in the corresponding through holes and can be connected to the rotating shaft main body of the rotating shaft in a swinging mode; the bottoms of the connecting frames are all used for connecting the same external frame; a cross beam is connected among the connecting frames; the damping assembly is arranged on the supporting seat and is positioned between the cross beam and the supporting seat; the damping assembly comprises an elastically telescopic damping rod, the damping rod is elastically abutted against the lower side wall of the cross beam, at the moment, the plurality of connecting frames are provided with rotating shaft main bodies which can be connected to the rotating shaft in a swinging mode and swing relative to the rotating shaft main bodies, so that a part of energy of vibration of the same external frame in the horizontal direction can be absorbed through the swinging of the plurality of connecting frames, and in addition, the damping assembly is positioned between the cross beam and the supporting seat; the shock absorption assembly comprises an elastically telescopic shock absorption rod which is elastically abutted against the lower side wall of the cross beam and elastically abutted against the plurality of connecting frames so as to absorb residual shock energy transferred to the connecting frames by the same external frame and maintain the balance state of the plurality of connecting frames.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic view of a shock absorbing device of a car loading device provided in an embodiment of the present application.
Fig. 2 is a top view of a damping device of a loading device provided in an embodiment of the present application.
Fig. 3 is a cross-sectional view at a in fig. 2.
Fig. 4 is a sectional view at B in fig. 2.
Fig. 5 is a partially enlarged view of C in fig. 4.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a loading equipment damping device 10 to solve the relatively poor problem of current damper's shock attenuation effect.
Referring to fig. 1 to 5, a truck-loading equipment damping device 10 according to an embodiment of the present disclosure includes a supporting base 11, a rotating shaft 12, a plurality of connecting frames 13, and a plurality of damping assemblies 14.
The supporting base 11 is used as a supporting part of the truck-loading equipment damping device 10 and supports the rotating shaft 12, the connecting frames 13 and the damping assemblies 14, wherein the supporting base 11 can be connected with the lifting end of the lifting assembly.
The supporting base 11 is provided with a plurality of supporting platforms 111 and a plurality of through holes 112; the supporting platforms 111 are oppositely arranged and arranged at intervals along the length direction of the supporting base 11, wherein the supporting platforms 111 are convexly arranged on the upper surface of the supporting base 11 and used for supporting the rotating shaft 12.
The plurality of via holes 112 are disposed at one side of the support stage 111, and the corresponding connection frames 13 are inserted through the via holes. The via 112 may be an elongated hole.
The rotating shaft 12 is rotatably installed at the supporting platform 111, wherein the rotating shaft 12 penetrates through a rotating hole of the supporting platform 111 and is connected to the supporting platform 111 through the rotating shaft 12, so that the rotating shaft 12 rotates along its own axial direction.
The shaft main body 121 of the rotating shaft 12 is disposed with respect to the via hole 112 so that the link 13 connected to the shaft main body 121 is swingably inserted through the via hole 112.
The plurality of connecting frames 13 are arranged in the corresponding via holes 112 and can be connected to the rotating shaft main body 121 of the rotating shaft 12 in a swinging mode, wherein the plurality of connecting frames 13 are connected to the rotating shaft main body 121 of the rotating shaft 12 in a swinging mode and swing relative to the rotating shaft main body 121, so that a part of energy of vibration of the same external frame in the horizontal direction can be absorbed through the swinging of the plurality of connecting frames 13, the plurality of connecting frames 13 are prevented from absorbing energy based on a fixed and unchangeable state, and the shock absorption effect of the shock absorption device 10 of the loading equipment is improved. Wherein the bottoms of the plurality of connecting frames 13 are all used for connecting the same external frame.
A cross member 131 is connected between the plurality of connecting frames 13, and the plurality of connecting frames 13 are connected by the cross member 131 and the plurality of connecting frames 13 are reinforced.
Optionally, the connecting frame 13 is provided with a docking hole 132, and an axis of the docking hole 132 and a central axis of the connecting frame 13 are in the same vertical direction; the butt joint hole 132 is swingably sleeved on the rotating shaft main body 121; the outer side wall of the rotating shaft main body 121 is convexly provided with a limiting table 122, and the side wall of the limiting table 122 abuts against the outer side wall of the connecting frame 13 along the axis direction of the rotating shaft main body 121 to limit the connecting frame 13 from being separated along the axis of the rotating shaft main body 121.
The shock absorption assembly 14 is arranged on the supporting seat 11 and is positioned between the cross beam 131 and the supporting seat 11; the shock-absorbing assembly 14 includes a shock-absorbing rod 141 elastically extensible and contractible, the shock-absorbing rod 141 elastically abutting against the lower side wall of the cross beam 131 and elastically abutting against the plurality of links 13 so as to absorb the residual shock energy transmitted to the links 13 by the same outer frame and maintain the balance state of the plurality of links 13.
At this time, the shock absorbing assembly 14 absorbs the shock of the plurality of connecting frames 13 through the acting beam 131, and absorbs the residual shock energy transmitted to the connecting frames 13 by the same external frame, so that the shock absorbing assembly 14 is prevented from directly acting on the plurality of connecting frames 13, and the acting position of the beam 131 is fully utilized, so that the shock absorbing assembly 14 realizes the overall shock absorbing effect of the damping device 10 of the loading equipment based on the shock absorption of the beam 131.
The shock absorption assembly 14 further comprises a support 142, and the support 142 is fixed on the support seat 11; the support 142 is provided with an accommodating cavity, and the shock-absorbing rod 141 is accommodated in the accommodating cavity and elastically connected with respect to the lower side wall of the accommodating cavity to elastically protrude out of the support 142; the upper surface of the shock-absorbing rod 141 elastically abuts against the lower side wall of the cross beam 131, at this time, the shock-absorbing rod 141 elastically extends and contracts with respect to the support 142 and elastically abuts against the cross beam 131, the cross beam 131 receives the elastic force of the shock-absorbing rod 141 in real time during the swing, and the cross beam 131 reduces the swing amplitude by the elastic force of the shock-absorbing rod 141 and damps the link 13 and the external frame connected to the link 13. And elastic cushioning.
Wherein, the crossbeam 131 and the shock absorption assembly 14 are provided with a plurality of crossbeams, and the crossbeams 131 and the shock absorption assemblies 14 are symmetrically arranged relative to the axis of the rotating shaft 12; the shock absorption assemblies 14 are arranged relative to the corresponding cross beams 131, and elastic acting force is synchronously applied based on the symmetrical arrangement of the cross beams 131, so that the symmetrical stress of the connecting frames 13 is ensured, the balance state of the connecting frames 13 is convenient to maintain, and the shock absorption effect of the shock absorption device 10 of the loading equipment on an external frame is improved.
The lower side wall of shock attenuation pole 141 and the lower side wall that holds the chamber are arranged relatively, are connected with elastic component 143 between the lower side wall of shock attenuation pole 141 and the lower side wall that holds the chamber, and the both ends of elastic component 143 elastic contact shock attenuation pole 141's lower side wall and the lower side wall that holds the chamber respectively, and elastic component 143 is in compression state to butt shock attenuation pole 141 under compression state, in order to maintain the elastic force of shock attenuation pole 141 to crossbeam 131. Optionally, the support 142 is provided with a through hole 1413, and the through hole 1413 is located on the upper surface of the support 142.
The shock absorption rod 141 comprises a shock absorption rod main body 1411 and an annular boss 1412, wherein the shock absorption rod main body 1411 penetrates through the through hole 1413 and can extend and retract relative to the through hole 1413; the annular boss 1412 is arranged on the outer side wall of the shock absorption rod body 1411 in a surrounding mode and is contained in the containing cavity, the annular boss 1412 is in gap connection with the containing cavity, and at the moment, the annular boss 1412 extends and retracts in the vertical direction under the guidance of the inner side wall of the containing cavity.
The support 142 comprises a support main body 1421 and an adjusting seat 1422, the support main body 1421 is provided with a groove, and the groove is communicated with the through hole 1413; the adjusting seat 1422 is located on the lower side of the support body 1421 and is screwed to the inner side wall of the groove; an accommodating cavity with an adjustable space is formed between the adjusting seat 1422 and the support main body 1421, the accommodating cavity is adjusted by rotating the adjusting seat 1422, and the adjusting seat 1422 adjusts the compression state of the elastic member 143, so as to adjust the elastic force of the elastic member 143. Optionally, the elastic member 143 is a spring.
Specifically, the outer side wall of the adjusting seat 1422 is provided with an external thread, the inner side wall of the groove far away from the through hole 1413 is provided with an internal thread, and the internal thread is in threaded connection with the external thread; the lower lateral wall of adjusting seat 1422 is equipped with hexagonal boss 1423, realizes adjusting the rotation of seat 1422 through rotatory hexagonal boss 1423.
Alternatively, the damper assembly 14 may have a plurality of damper assemblies 14, and the plurality of damper assemblies 14 may be arranged at intervals along the transverse direction of the cross member 131 and symmetrically arranged along the central axis direction of the vertical direction in the cross member 131.
The upper surface of brace table 111 is equipped with screw hole 1111, and screw hole 1111 runs through brace table 111 along vertical direction to expose axis of rotation 12, at this moment, the double-screw bolt is connected in screw hole 1111, and moves towards axis of rotation 12 at rotatory in-process, so that the butt axis of rotation 12, thereby the realization is to the injecing of axis of rotation 12.
In the damping device 10 for the loading equipment provided by one embodiment of the application, the supporting seat 11 is provided with a plurality of supporting seats 111 and a plurality of through holes 112; a plurality of support tables 111 are arranged oppositely; a plurality of via holes 112 are disposed at one side of the support stage 111; the rotating shaft 12 is rotatably mounted on the support base 111; the shaft main body 121 of the rotating shaft 12 is arranged opposite to the through hole 112; a plurality of connection frames 13 disposed at the through holes 112 and swingably connected to the rotation shaft body 121 of the rotation shaft 12; the bottoms of the connecting frames 13 are all used for connecting the same external frame; a cross beam 131 is connected among the plurality of connecting frames 13; the shock absorption assembly 14 is arranged on the supporting seat 11 and is positioned between the cross beam 131 and the supporting seat 11; the damper assembly 14 includes an elastically stretchable damper rod 141, the damper rod 141 elastically abuts against the lower side wall of the cross beam 131, at this time, the plurality of links 13 are provided with the rotation shaft main body 121 swingably connected to the rotation shaft 12 and swing with respect to the rotation shaft main body 121 so as to absorb a part of energy of vibration of the same external frame in the horizontal direction by the swing of the plurality of links 13, and in addition, the damper assembly 14 is located between the cross beam 131 and the support base 11; the shock-absorbing assembly 14 includes a shock-absorbing rod 141 elastically extensible and contractible, the shock-absorbing rod 141 elastically abutting against the lower side wall of the cross beam 131 and elastically abutting against the plurality of links 13 so as to absorb the residual shock energy transmitted to the links 13 by the same outer frame and maintain the balance state of the plurality of links 13.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and these embodiments are still within the scope of the invention.
Claims (10)
1. The utility model provides a loading equipment damping device which characterized in that, loading equipment damping device includes:
the supporting seat is provided with a plurality of supporting tables and a plurality of through holes; a plurality of the supporting tables are oppositely arranged; the plurality of via holes are arranged on one side of the support platform;
a rotating shaft rotatably mounted to the support table; the rotating shaft main body of the rotating shaft is arranged opposite to the through hole;
the connecting frames are arranged on the corresponding through holes and can be connected to the rotating shaft main body of the rotating shaft in a swinging mode; the bottoms of the connecting frames are all used for connecting the same external frame; a cross beam is connected among the connecting frames;
the damping assembly is arranged on the supporting seat and is positioned between the cross beam and the supporting seat; the shock absorption assembly comprises an elastically telescopic shock absorption rod, and the shock absorption rod is elastically abutted to the lower side wall of the cross beam.
2. The loading equipment shock absorbing device of claim 1, wherein the shock absorbing assembly further comprises a support fixed to the support base; the support is provided with an accommodating cavity, the damping rod is accommodated in the accommodating cavity and is elastically connected with the lower side wall of the accommodating cavity so as to elastically protrude out of the support; the upper surface of the shock absorption rod is elastically abutted to the lower side wall of the cross beam.
3. The truck-loading apparatus shock-absorbing device according to claim 2, wherein the cross member and the shock-absorbing member are provided in plural, and the plural cross members and the plural shock-absorbing members are arranged symmetrically with respect to the axis of the rotating shaft; the shock absorbing assemblies are arranged relative to the corresponding cross beam.
4. The truck-loading equipment shock-absorbing device according to claim 3, wherein the lower side wall of the shock-absorbing rod and the lower side wall of the accommodating cavity are arranged oppositely, an elastic member is connected between the lower side wall of the shock-absorbing rod and the lower side wall of the accommodating cavity, two ends of the elastic member respectively elastically contact the lower side wall of the shock-absorbing rod and the lower side wall of the accommodating cavity, and the elastic member is in a compressed state.
5. The shock absorbing device for the loading equipment as claimed in claim 4, wherein the support is provided with a through hole, and the through hole is positioned on the upper surface of the support;
the shock absorption rod comprises a shock absorption rod main body and an annular boss, and the shock absorption rod main body penetrates through the through hole and can stretch and retract relative to the through hole; the annular boss is annularly arranged on the outer side wall of the shock absorption rod main body and accommodated in the accommodating cavity, and the annular boss is in clearance connection with the accommodating cavity.
6. The shock absorption device for the loading equipment according to claim 5, wherein the support comprises a support main body and an adjusting seat, the support main body is provided with a groove, and the groove is communicated with the through hole; the adjusting seat is positioned at the lower side of the support main body and is in threaded connection with the inner side wall of the groove; an accommodating cavity with adjustable space is formed by the enclosing of the adjusting seat and the support main body.
7. The shock absorption device for the loading equipment according to claim 6, wherein the outer side wall of the adjusting seat is provided with an external thread, the inner side wall of the groove far away from the through hole is provided with an internal thread, and the internal thread is in threaded connection with the external thread; the lower side wall of the adjusting seat is provided with a hexagonal boss.
8. The shock absorption device for the loading equipment according to any one of claims 1 to 7, wherein the connecting frame is provided with a butt joint hole, and the axis of the butt joint hole is in the same vertical direction with the central axis of the connecting frame; the butt joint hole can be sleeved on the rotating shaft main body in a swinging mode; the outer side wall of the rotating shaft main body is convexly provided with a limiting table, and the side wall of the limiting table abuts against the outer side wall of the connecting frame in the axis direction of the rotating shaft main body.
9. The truck-loading apparatus shock-absorbing device according to any one of claims 1 to 7, wherein the shock-absorbing member has a plurality of shock-absorbing members which are arranged at intervals in a lateral direction of the cross member and symmetrically arranged in a direction along a central axis in a vertical direction in the cross member.
10. The truck-loading equipment shock-absorbing device as claimed in any one of claims 1 to 7, wherein a threaded hole is formed in an upper surface of the support platform, and the threaded hole penetrates through the support platform in a vertical direction and exposes the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221964417.6U CN217633650U (en) | 2022-07-28 | 2022-07-28 | Damping device of loading equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221964417.6U CN217633650U (en) | 2022-07-28 | 2022-07-28 | Damping device of loading equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633650U true CN217633650U (en) | 2022-10-21 |
Family
ID=83636124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221964417.6U Active CN217633650U (en) | 2022-07-28 | 2022-07-28 | Damping device of loading equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217633650U (en) |
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2022
- 2022-07-28 CN CN202221964417.6U patent/CN217633650U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310051 floor 17, block a, building 10, No. 611, Dongguan Road, Puyan street, Binjiang District, Hangzhou, Zhejiang Province Patentee after: Hangzhou Mingdu Intelligent Manufacturing Co.,Ltd. Country or region after: China Address before: 310051 floor 17, block a, building 10, No. 611, Dongguan Road, Puyan street, Binjiang District, Hangzhou, Zhejiang Province Patentee before: Hangzhou Mingdu Intelligent Technology Co.,Ltd. Country or region before: China |