CN103548701B - Square feed supply device with internal spline rings and limiting nuts - Google Patents
Square feed supply device with internal spline rings and limiting nuts Download PDFInfo
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- CN103548701B CN103548701B CN201310588565.1A CN201310588565A CN103548701B CN 103548701 B CN103548701 B CN 103548701B CN 201310588565 A CN201310588565 A CN 201310588565A CN 103548701 B CN103548701 B CN 103548701B
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Abstract
The invention provides a square feed supply device with internal spline rings and limiting nuts. The square feed supply device comprises a base (15), power components, four moving shaft components and a frame (4), wherein the frame (4) comprises an inner fixing support (14) and a square outer frame taking the shape of a square; the power components comprise a motor, a conical gearwheel (1) and four conical pinion wheels (2); each moving shaft component comprises a moving shaft (8), a threaded sleeve (7), two radial thrust bearings (6), an internal spline ring (5), a limiting nut (11) and a silo component (3), and the two radial thrust bearings (6) are used for rotatably fixing the threaded sleeve (7) on the frame (4); each moving shaft (8) comprises an outer side part (8a) and an inner side part (8b), and the inner side part (8b) of the moving shaft (8) is provided with external threads used for being in threaded fit with the threaded sleeve (7).
Description
Technical field
The application relates to a kind of device, is specially a kind of with internal spline ring and the square feed supply device limiting nut.
Background technology
China is large agricultural country, Ye Shi livestock breed aquatics big country, and how systematization, industrialization management livestock breeding are urgent problems in current animal husbandry development.The animal-breeding of scale can make the knowledge of people's focusing study animal feeding, and collective provides required nutrition for animal, is conducive to centralized management, reduces costs, and promotes the growth of livestock breeding industry further, promotes the fast development of agricultural economy.At present, to the raising of numerous animal normally plant need to employ a lot of labour to carry out nursing one by one to animal, consume huge human cost.
Summary of the invention
The present invention is in order to overcome defect of the prior art, and provide a kind of with internal spline ring and the square feed supply device limiting nut, it can realize the supply of feed and withdrawal by the auto-extending of hopper assembly and regaining thus realize feeding while multiple animal, and the labour intensity greatly alleviating poultry raiser reduces the human cost of plant.
A kind of with internal spline ring and the square feed supply device limiting nut, comprise base, Power Component, four shifting axle assemblies and frame, described frame comprises inner fixed stand and the square housing in square shape, described square housing comprises inner side frame and outer side frame, has hopper container cavity between described inner side frame and outer side frame.
Described Power Component comprises motor, a taper gear wheel and four conical pinion gear, described taper gear wheel can be connected with motor power, and the periphery that described four conical pinion gear are evenly distributed on described taper gear wheel engages with described taper gear wheel.
Each described shifting axle assembly comprises shifting axle, screw shell, radial-thrust bearing, internal spline ring, limits nut and hopper assembly, and the quantity of described radial-thrust bearing is two, for described screw shell is rotatably mounted to frame; Described shifting axle comprises Outboard Sections and inboard portion, and the inboard portion of described shifting axle has external screw thread, for screw shell threaded engagement; The Outboard Sections of described shifting axle has external splines, and for coordinating the outer side frame that also can stretch out corresponding edge in described square housing slidably with described internal spline ring, described internal spline ring is fixed on the inner side frame of corresponding edge; Restriction nut is provided with, for carrying out spacing to the outside slip amplitude of shifting axle and inside slip amplitude between described Outboard Sections and inboard portion; The medial extremity of described screw shell is provided with the external diameter neck less than described screw shell external diameter, and described neck is fixedly connected with corresponding described conical pinion gear; Described hopper assembly is connected with the outer end of the Outboard Sections of described shifting axle, for holding feed.
Taper bull gear drive can drive conical pinion gear to rotate, thus drive described screw shell to rotate, because internal spline ring is fixed in frame, therefore shifting axle can carry out to outer and inner movement under the drive of screw shell, thus make hopper assembly can stretch out and stretch into described outer side frame, realize supply and the withdrawal of feed.
Described housing is fixed on inner fixed stand, described inner fixed stand is the structure of hollow circuit cylinder cylinder, described housing is connected with the external cylindrical surface power of described hollow circuit cylinder cylinder, described taper gear wheel is fixed rotationally on the top of the inner cylinder face of described hollow circuit cylinder cylinder, the bottom of described hollow circuit cylinder cylinder is rotatably mounted on base by conical bearing, and thus makes described inner fixed stand can around vertical direction axis relative to base rotation; Described motor is arranged in the internal cavities of described hollow circuit cylinder cylinder, and be fixed with the draw runner of vertical direction outside the body of described motor, the inner cylinder face of described hollow circuit cylinder cylinder offers the chute of vertical direction, described motor, under the cooperation of described draw runner and chute, vertically can slide up and down and keep being connected with the anti-rotation of described inner fixed stand simultaneously in described internal cavities; Described motor has upper rotor axle and lower rotor axle, the upper end of described upper rotor axle has armature spindle end-tooth, the lower surface of described taper gear wheel has gear face tooth, described armature spindle end-tooth can with described gear face indented joint and disengagement, thus can selectively to drive described taper gear wheel; Described lower rotor axle is connected with clutch discs rotationally by lower bearing, described clutch discs is relative to described lower rotor axle axial restraint, the upper surface of described clutch discs is provided with clutch discs end-tooth, the lower surface of described clutch discs is fixedly installed at least two locking bars, the lower surface of described inner fixed stand is provided with fixed mount end-tooth, and described clutch discs end-tooth can engage with fixed mount end-tooth and throw off; Described base has diapire below described conical bearing, described diapire is provided with at least two strip holes coordinated with described at least two locking bars, and described at least two locking bars can slide up and down in described at least two strip holes; Described diapire is also provided with anti-rotation connecting hole, and described anti-rotation connecting hole can engage with the bottom of described lower rotor axle and throw off, thus can be selectively connected with described base anti-rotation by described lower rotor axle.
The diapire of described base is square, and foursquare every bar limit of diapire arranges a runner, thus described base is arranged on the ground; Described hopper assembly is the hollow cuboid that upper side opens wide, and can be contained in described hopper container cavity, and the hollow cavity of described cuboid is used for holding feed.
When described motor slide downward, described clutch discs moves downward under the drive of described lower rotor axle, thus at least two locking bars described in can making drop into described in bottom at least two strip holes, described clutch discs end-tooth and described fixed mount end-tooth are thrown off, and the bottom of described lower rotor axle engages with described anti-rotation connecting hole, armature spindle end-tooth and the gear face tooth of upper rotor axle are thrown off, now due to described lower rotor axle and described base anti-rotation fix, draw runner after electrical power outside body rotates and drives described inner fixed stand to rotate, thus drive described housing to rotate.
When motor upward sliding, described clutch discs moves upward under the drive of described lower rotor axle, described at least two locking bars still keep being connected with described at least two strip holes, described clutch discs end-tooth engages with described fixed mount end-tooth, and the bottom of described lower rotor axle and described anti-rotation connecting hole are thrown off, the armature spindle end-tooth of upper rotor axle and gear face indented joint, now because the draw runner outside motor body passes through inner fixed stand, clutch discs and being connected with base anti-rotation, electrical power upper back armature spindle rotates, thus drive described taper bull gear drive.
In the present invention, by being evenly arranged four conical pinion gear on the periphery of taper gear wheel, making a motor that four conical pinion gear can be driven to rotate simultaneously, thus driving four screw shells to rotate simultaneously; By each shifting axle being divided into the Outboard Sections that there is externally threaded inboard portion He there is external splines, and the external screw thread of inboard portion is coordinated to the corresponding screw shell be fixed in frame, the external splines of Outboard Sections is coordinated with the internal spline ring be fixed in frame, screw shell is made to be fixed in frame by radial-thrust bearing, thus shifting axle can be slidably reciprocated under the driving of motor, realize stretching out and regaining of hopper; Owing to employing the upper and lower clutch system of motor, therefore, it is possible to by means of only arranging a motor, just selectively can supply two kinds of motions to the rotation of stretching out retraction and feed of hopper to drive, and these two kinds motions mechanically ensure that can only select one carries out, and improves the safety of system.In addition, the project organization that a motor just can realize two kinds of functions is only set and also reduces cost, improve the reliability of system cloud gray model.
Accompanying drawing explanation
Fig. 1 is hopper band internal spline ring and limit the top plan view of square feed supply device of nut when returning in hopper container cavity;
Fig. 2 is hopper band internal spline ring and limit the top plan view of square feed supply device of nut when stretching out frame;
Fig. 3 is the installation diagram in housing rotation, hopper not turnover situation;
Fig. 4 is that housing is fixed, installation diagram in hopper turnover situation.
Embodiment
A kind of with internal spline ring and the square feed supply device limiting nut, comprise base 15, Power Component, four shifting axle assemblies and frame 4, described frame 4 comprises inner fixed stand 14 and the square housing in square shape, described square housing comprises inner side frame and outer side frame, has hopper container cavity between described inner side frame and outer side frame.
Described Power Component comprises motor, a taper gear wheel 1 and four conical pinion gear 2, described taper gear wheel 1 can be connected with motor power, and the periphery that described four conical pinion gear 2 are evenly distributed on described taper gear wheel 1 engages with described taper gear wheel 1.
Each described shifting axle assembly comprises shifting axle 8, screw shell 7, radial-thrust bearing 6, internal spline ring 5, limits nut 11 and hopper assembly 3, the quantity of described radial-thrust bearing 6 is two, for described screw shell 7 is rotatably mounted to frame 4; Described shifting axle 8 comprises Outboard Sections 8a and inboard portion 8b, and the inboard portion 8b of described shifting axle 8 has external screw thread, for screw shell 7 threaded engagement; The Outboard Sections 8a of described shifting axle 8 has external splines, and for coordinating the outer side frame that also can stretch out corresponding edge in described square housing slidably with described internal spline ring 5, described internal spline ring 5 is fixed on the inner side frame of corresponding edge; Be provided with between described Outboard Sections 8a and inboard portion 8b and limit nut 11, for carrying out spacing to the outside slip amplitude of shifting axle and inside slip amplitude; The medial extremity of described screw shell 7 is provided with the external diameter neck less than described screw shell 7 external diameter, and described neck is fixedly connected with corresponding described conical pinion gear 2; Described hopper assembly 3 is connected with the outer end of the Outboard Sections 8a of described shifting axle 8, for holding feed.
Taper gear wheel 1 rotates and conical pinion gear 2 can be driven to rotate, thus drive described screw shell 7 to rotate, because internal spline ring 5 is fixed in frame 4, therefore shifting axle 8 can carry out to outer and inner movement under the drive of screw shell 7, thus make hopper assembly 3 can stretch out and stretch into described outer side frame, realize supply and the withdrawal of feed.
Described housing is fixed on inner fixed stand 14, described inner fixed stand 14 is the structure of hollow circuit cylinder cylinder, described housing is connected with the external cylindrical surface power of described hollow circuit cylinder cylinder, described taper gear wheel 1 is fixed rotationally on the top of the inner cylinder face of described hollow circuit cylinder cylinder, the bottom of described hollow circuit cylinder cylinder is rotatably mounted on base 15 by conical bearing 18, and thus makes described inner fixed stand 14 can rotate around vertical direction axis relative to base 15; Described motor 13 is arranged in the internal cavities of described hollow circuit cylinder cylinder, and be fixed with the draw runner 131 of vertical direction outside the body of described motor 13, the inner cylinder face of described hollow circuit cylinder cylinder offers the chute 141 of vertical direction, described motor 13, under the cooperation of described draw runner 131 and chute 141, vertically can slide up and down and keep being connected with the anti-rotation of described inner fixed stand simultaneously in described internal cavities; Described motor 13 has upper rotor axle 132 and lower rotor axle 133, the upper end of described upper rotor axle 132 has armature spindle end-tooth 12, the lower surface of described taper gear wheel 1 has gear face tooth 120, described armature spindle end-tooth 12 can engage with described gear face tooth 120 and throw off, thus can selectively drive described taper gear wheel 1; Described lower rotor axle 133 is connected with clutch discs 16 rotationally by lower bearing 17, described clutch discs 16 is relative to described lower rotor axle 133 axial restraint, the upper surface of described clutch discs 16 is provided with clutch discs end-tooth 162, the lower surface of described clutch discs 16 is fixedly installed at least two locking bars 161, the lower surface of described inner fixed stand 14 is provided with fixed mount end-tooth 142, and described clutch discs end-tooth 162 can engage with fixed mount end-tooth 142 and throw off; Described base 15 has diapire below described conical bearing 18, described diapire is provided with at least two strip holes 152 coordinated with described at least two locking bars 161, described at least two locking bars 161 can slide up and down in described at least two strip holes 152; Described diapire is also provided with anti-rotation connecting hole 151, and described anti-rotation connecting hole 151 can engage with the bottom of described lower rotor axle 133 and throw off, thus can be selectively connected with described base 15 anti-rotation by described lower rotor axle 133.
The diapire of described base 15 is square, foursquare every bar limit of diapire arranges a runner 19, thus makes described base 15 arrange on the ground; The hollow cuboid that described hopper assembly 3 opens wide for upper side, and can be contained in described hopper container cavity, the hollow cavity of described cuboid is used for holding feed, wherein, and the feed that side is different in different hoppers.
When described motor 13 slide downward, described clutch discs 16 moves downward under the drive of described lower rotor axle 133, thus at least two locking bars 161 described in can making drop into described in bottom at least two strip holes 152, described clutch discs end-tooth 162 is thrown off with described fixed mount end-tooth 142, and the bottom of described lower rotor axle 133 engages with described anti-rotation connecting hole 151, armature spindle end-tooth 12 and the gear face tooth 120 of upper rotor axle 132 are thrown off, now due to described lower rotor axle 133 and described base 15 anti-rotation fix, draw runner 131 after electrical power outside body rotates and drives described inner fixed stand 14 to rotate, thus drive described housing to rotate.
When motor 13 upward sliding, described clutch discs 16 moves upward under the drive of described lower rotor axle 133, described at least two locking bars 161 still keep being connected with described at least two strip holes 152, described clutch discs end-tooth 162 engages with described fixed mount end-tooth 142, and the bottom of described lower rotor axle 133 and described anti-rotation connecting hole 151 are thrown off, the armature spindle end-tooth 12 of upper rotor axle 132 engages with gear face tooth 120, now because the draw runner 131 outside motor body is by inner fixed stand 14, clutch discs 16 and being connected with base anti-rotation, electrical power upper back armature spindle 132 rotates, thus drive described taper gear wheel 1 to rotate.
Owing to employing the upper and lower clutch system of motor, therefore, it is possible to by means of only arranging a motor, just selectively can supply two kinds of motions to the rotation of stretching out retraction and feed of hopper to drive, and these two kinds motions mechanically ensure that can only select one carries out, and improves the safety of system.In addition, the project organization that a motor just can realize two kinds of functions is only set and also reduces cost, improve the reliability of system cloud gray model.
Claims (1)
1. one kind with internal spline ring with limit the square feed supply device of nut, comprise base (15), Power Component, four shifting axle assemblies and frame (4), described frame (4) comprises inner fixed stand (14) and the square housing in square shape, described square housing comprises inner side frame and outer side frame, has hopper container cavity between described inner side frame and outer side frame;
Described Power Component comprises motor, a taper gear wheel (1) and four conical pinion gear (2), described taper gear wheel (1) can be connected with motor power, and the periphery that described four conical pinion gear (2) are evenly distributed on described taper gear wheel (1) engages with described taper gear wheel (1);
Each described shifting axle assembly comprises shifting axle (8), screw shell (7), radial-thrust bearing (6), internal spline ring (5), limits nut (11) and hopper assembly (3), the quantity of described radial-thrust bearing (6) is two, for described screw shell (7) is rotatably mounted to frame (4); Described shifting axle (8) comprises Outboard Sections (8a) and inboard portion (8b), and the inboard portion (8b) of described shifting axle (8) has external screw thread, for screw shell (7) threaded engagement; The Outboard Sections (8a) of described shifting axle (8) has external splines, and for coordinating the outer side frame that also can stretch out corresponding edge in described square housing slidably with described internal spline ring (5), described internal spline ring (5) is fixed on the inner side frame of corresponding edge; Be provided with between described Outboard Sections (8a) and inboard portion (8b) and limit nut (11), for carrying out spacing to the outside slip amplitude of shifting axle and inside slip amplitude; The medial extremity of described screw shell (7) is provided with the external diameter neck less than described screw shell (7) external diameter, and described neck is fixedly connected with corresponding described conical pinion gear (2); Described hopper assembly (3) is connected, for holding feed with the outer end of the Outboard Sections (8a) of described shifting axle (8);
Taper gear wheel (1) rotates and conical pinion gear (2) can be driven to rotate, thus drive described screw shell (7) to rotate, because internal spline ring (5) is fixed in frame (4), therefore shifting axle (8) can carry out to outer and inner movement under the drive of screw shell (7), thus make hopper assembly (3) can stretch out and stretch into described outer side frame, realize supply and the withdrawal of feed;
Described housing is fixed on inner fixed stand (14), the structure that described inner fixed stand (14) is hollow circuit cylinder cylinder, described housing is connected with the external cylindrical surface power of described hollow circuit cylinder cylinder, described taper gear wheel (1) is fixed rotationally on the top of the inner cylinder face of described hollow circuit cylinder cylinder, the bottom of described hollow circuit cylinder cylinder is rotatably mounted on base (15) by conical bearing (18), and thus makes described inner fixed stand (14) can rotate around vertical direction axis relative to base (15); Described motor (13) is arranged in the internal cavities of described hollow circuit cylinder cylinder, and be fixed with the draw runner (131) of vertical direction outside the body of described motor (13), the inner cylinder face of described hollow circuit cylinder cylinder offers the chute (141) of vertical direction, described motor (13), under the cooperation of described draw runner (131) and chute (141), vertically can slide up and down and keep being connected with the anti-rotation of described inner fixed stand simultaneously in described internal cavities; Described motor (13) has upper rotor axle (132) and lower rotor axle (133), the upper end of described upper rotor axle (132) has armature spindle end-tooth (12), the lower surface of described taper gear wheel (1) has gear face tooth (120), described armature spindle end-tooth (12) can engage with described gear face tooth (120) and throw off, thus can selectively drive described taper gear wheel (1); Described lower rotor axle (133) is connected with clutch discs (16) rotationally by lower bearing (17), described clutch discs (16) is relative to described lower rotor axle (133) axial restraint, the upper surface of described clutch discs (16) is provided with clutch discs end-tooth (162), the lower surface of described clutch discs (16) is fixedly installed at least two locking bars (161), the lower surface of described inner fixed stand (14) is provided with fixed mount end-tooth (142), and described clutch discs end-tooth (162) can engage with fixed mount end-tooth (142) and throw off; Described base (15) has diapire in described conical bearing (18) below, described diapire is provided with at least two strip holes (152) coordinated with described at least two locking bars (161), described at least two locking bars (161) can slide up and down in described at least two strip holes (152); Described diapire is also provided with anti-rotation connecting hole (151), described anti-rotation connecting hole (151) can engage with the bottom of described lower rotor axle (133) and throw off, thus can selectively described lower rotor axle (133) be connected with described base (15) anti-rotation;
The diapire of described base (15) is square, and foursquare every bar limit of diapire arranges a runner (19), thus described base (15) is arranged on the ground; The hollow cuboid that described hopper assembly (3) is opened wide for upper side, and can be contained in described hopper container cavity, the hollow cavity of described cuboid is used for holding feed;
When described motor (13) slide downward, described clutch discs (16) moves downward under the drive of described lower rotor axle (133), thus at least two locking bars (161) described in can making drop into described at least two strip holes (152) bottom, described clutch discs end-tooth (162) and described fixed mount end-tooth (142) are thrown off, and the bottom of described lower rotor axle (133) engages with described anti-rotation connecting hole (151), armature spindle end-tooth (12) and the gear face tooth (120) of upper rotor axle (132) are thrown off, now due to described lower rotor axle (133) and described base (15) anti-rotation fix, draw runner (131) after electrical power outside body rotates and drives described inner fixed stand (14) to rotate, thus drive described housing to rotate,
When motor (13) upward sliding, described clutch discs (16) moves upward under the drive of described lower rotor axle (133), described at least two locking bars (161) still keep being connected with described at least two strip holes (152), described clutch discs end-tooth (162) engages with described fixed mount end-tooth (142), and the bottom of described lower rotor axle (133) and described anti-rotation connecting hole (151) are thrown off, the armature spindle end-tooth (12) of upper rotor axle (132) engages with gear face tooth (120), now because the draw runner (131) outside motor body is by inner fixed stand (14), clutch discs (16) and being connected with base anti-rotation, electrical power upper back armature spindle (132) is rotated, thus drive described taper gear wheel (1) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588565.1A CN103548701B (en) | 2013-11-21 | 2013-11-21 | Square feed supply device with internal spline rings and limiting nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588565.1A CN103548701B (en) | 2013-11-21 | 2013-11-21 | Square feed supply device with internal spline rings and limiting nuts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103548701A CN103548701A (en) | 2014-02-05 |
| CN103548701B true CN103548701B (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310588565.1A Active CN103548701B (en) | 2013-11-21 | 2013-11-21 | Square feed supply device with internal spline rings and limiting nuts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103548701B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077360A (en) * | 1976-07-16 | 1978-03-07 | F. G. Waide, Inc. | Pet feeding apparatus |
| CN2357494Y (en) * | 1998-08-25 | 2000-01-12 | 张荣维 | Automatic feed pail |
| EP1344710A2 (en) * | 1998-06-16 | 2003-09-17 | TRW Lucas Varity Electric Steering Limited | Improvements relating to electrical power assisted steering |
| CN201069948Y (en) * | 2007-07-09 | 2008-06-11 | 梁铭豪 | Feeders with air channel |
| CN201789372U (en) * | 2010-04-16 | 2011-04-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Parallel shaft gear speed reducer integrated with motor |
| CN203202143U (en) * | 2013-02-20 | 2013-09-18 | 珠海艾迪西软件科技有限公司 | Gear-type vertical lifting driving structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09119495A (en) * | 1995-10-24 | 1997-05-06 | Sanin Booruto Seisakusho:Kk | Stretch feeding device for band body |
| KR100901129B1 (en) * | 2007-09-05 | 2009-06-04 | 정수연 | Auto-feeding unit for pet animals |
-
2013
- 2013-11-21 CN CN201310588565.1A patent/CN103548701B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077360A (en) * | 1976-07-16 | 1978-03-07 | F. G. Waide, Inc. | Pet feeding apparatus |
| EP1344710A2 (en) * | 1998-06-16 | 2003-09-17 | TRW Lucas Varity Electric Steering Limited | Improvements relating to electrical power assisted steering |
| CN2357494Y (en) * | 1998-08-25 | 2000-01-12 | 张荣维 | Automatic feed pail |
| CN201069948Y (en) * | 2007-07-09 | 2008-06-11 | 梁铭豪 | Feeders with air channel |
| CN201789372U (en) * | 2010-04-16 | 2011-04-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Parallel shaft gear speed reducer integrated with motor |
| CN203202143U (en) * | 2013-02-20 | 2013-09-18 | 珠海艾迪西软件科技有限公司 | Gear-type vertical lifting driving structure |
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| Publication number | Publication date |
|---|---|
| CN103548701A (en) | 2014-02-05 |
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Owner name: QIDONG TIANFEN ELECTRIC TOOL TECHNOLOGY INNOVATION Free format text: FORMER OWNER: YANG JIANER Effective date: 20150703 |
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Effective date of registration: 20150703 Address after: Qidong City, Jiangsu province 226200 Nantong lvsigang Tianfen electric tools trade city comprehensive building Patentee after: Qidong Tianfen Electric Tool Technology Innovation Center Address before: 101, room 5, building 220, Heping North Road, Puyang Yang Road, Pujiang, Zhejiang, Jinhua 322299, China Patentee before: Yang Jianer |