CN106034853B - A kind of control device that leaks informaton for the mouth that leaks informaton for greenhouse - Google Patents
A kind of control device that leaks informaton for the mouth that leaks informaton for greenhouse Download PDFInfo
- Publication number
- CN106034853B CN106034853B CN201610342212.7A CN201610342212A CN106034853B CN 106034853 B CN106034853 B CN 106034853B CN 201610342212 A CN201610342212 A CN 201610342212A CN 106034853 B CN106034853 B CN 106034853B
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- CN
- China
- Prior art keywords
- driven wheel
- ratchet
- pawl
- informaton
- transmission shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/241—Arrangement of opening or closing systems for windows and ventilation panels
- A01G9/242—Arrangement of opening or closing systems for windows and ventilation panels for greenhouses with flexible coverings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Pulleys (AREA)
- Transmission Devices (AREA)
Abstract
Leak informaton the control device that leaks informaton of mouth for greenhouse the present invention relates to a kind of, the control device that leaks informaton includes unidirectional transmission, rope, the first angle pulley, the second angle pulley, third angle pulley and the lantern ring being fixed on the rope, wherein, the unidirectional transmission includes power plant, transmission shaft, the first ratchet, the second ratchet, the first pawl, the second pawl, the first driven wheel and the second driven wheel, first driven wheel and the second driven wheel can be rotatably set on transmission shaft, and installation position is followed successively by：First driven wheel, the first ratchet, the second ratchet, the second driven wheel, first ratchet and the second ratchet are fixedly connected with transmission shaft, hook tooth and first pawl, the second click-fit, during so that transmission shaft rotating forward or backwards, one of the first driven wheel and the second driven wheel are rotated with transmission shaft.The present invention can be achieved with the single-direction transmission of both direction, compact-sized, transmission efficiency using a set of power plant and a set of transmission device.
Description
Technical field
The present invention relates to mechanical transmission fields, and in particular to a kind of control device that leaks informaton for the mouth that leaks informaton for greenhouse.
Background technology
Transmission device is the intermediate equipment for the power of power plant being passed to operating mechanism, is the most important of mechanical equipment
Component part, well known gear mechanism is come passing power by the engagement of gear, conceives ratio, structure with other drivers
Compact, reliable operation, transmission efficiency.Progressive line gear, circular arc and the parabolic tooth-shape gear of existing extensive utilization all can be real
Existing bi-directional, but in the occasion of some unidirectional delivery power, it is necessary to it could realize purpose using unidirectional delivery mechanism, it is existing
One-way driving mechanism in technology is generally using ratchet, pawl structures, but a set of ratchet, pawl structures can only realize a direction
Single-direction transmission, the single-direction transmission if necessary to another direction then needs in addition to set a set of transmission device, causes mechanical biography
The assembly technology of dynamic part is complicated, and high failure rate, cost also greatly improves.
The Chinese patent literature of Publication No. CN101725648A discloses a kind of integrated ratchet of ratchet gear
Transmission device, is machined with the gear teeth on the outer profile of gear, the embedded SMA actuators of gear there are one ratchet, in the endoporus of gear interference pacify
Equipped with left bushing, left baffle ring is installed on the right side of left bushing；Driving wheel is mounted on gear internal, and driving wheel left side and left baffle ring are right
Side contacts, the endoporus of driving wheel are machined with keyway, and driving wheel realizes the connection with transmission shaft by keyway and key；Milling on driving wheel
There is heavy platform, pawl is mounted on by pawl fixing screws on driving wheel, and pin is separately installed in the heavy platform and pawl of driving wheel,
Spring steel plate is mounted between pawl fixing screws and pin, and spring steel plate makes the surface of the ratchet of pawl and gear keep connecing
It touches；Interference is equipped with right bushing in the endoporus of end cap, and right baffle ring is equipped in the counterbore of cover internal, and end cap passes through trip bolt
On the right side of gear.Above-mentioned ratchet transmission structures are more complicated, and can only realize single-direction transmission.
Greenhouse is influenced by the factors such as soil and temperature in indoor and outdoor temperature, illumination, wind-force, wind direction and canopy, in canopy
Temperature Change is larger, and therefore, the mouth that leaks informaton of greenhouse needs frequent opening and closing, to reach to shed vegetable growing environment
It adjusts, adapts to the growth of vegetables.In the prior art, greenhouse leaks informaton mouth generally using the side of fixed pulley and revolution pulley combination
Formula changes the draw direction with rope, controls the movement forward or backwards of output shaft, and rope is driven to pull the film that leaks informaton, and realization is put
The opening and closing in air port.But the both ends that the technology used at present is usually rope are directly wound on output shaft, due to rope
The thickness of Suo Benshen, such rope are wound at one end during one end loosens, and the linear velocity of rope ends is different, rope sheet
Body disputes tight uneven, the imbalance for the mouth opening and closing that cause to leak informaton.
Invention content
The defects of for unidirectional transmission in the prior art, the present invention provide a kind of control of leaking informaton for the mouth that leaks informaton for greenhouse
Device processed, the control device that leaks informaton make full use of the design feature of ratchet and pawl, realize and utilize a set of power plant and a set of
Transmission mechanism can be achieved with Bidirectional driving, the advantages of not only having remained ratchet, pawl unidirectional delivery, but also can bi-directional power.
In order to overcome in the prior art greenhouse leak informaton mouthful unidirectional transmission the defects of, the technical solution adopted by the present invention
For：One kind is leaked informaton control device, and the control device that leaks informaton includes unidirectional transmission, rope, the first angle pulley, second changes
To pulley, third angle pulley and the lantern ring being fixed on the rope, the greenhouse leaks informaton thin covered with the plastics that leak informaton on mouth
Film, the plastic film that leaks informaton is rectangular, and the free end of the plastic film that leaks informaton is provided with connecting rod, in the control dress that leaks informaton
Under the control put, the free end slide-open of the plastic film that leaks informaton or the closing greenhouse leak informaton mouth, the single-direction transmission
Device includes power plant, transmission shaft, the first ratchet, the second ratchet, the first pawl, the second pawl, the first driven wheel and second
Driven wheel, power plant are connected with transmission shaft with passing power, and the first driven wheel and the second driven wheel can be rotatably set in
On transmission shaft, first ratchet, the installation position of the second ratchet, the first driven wheel and the second driven wheel on transmission shaft are successively
For：First driven wheel the-the first ratchet the-the second driven wheel of the-the second ratchet, first pawl are arranged on the circumference of the first driven wheel
On, the second pawl is arranged on the circumference of the second driven wheel, and first ratchet and the second ratchet are fixedly connected with transmission shaft, the
Hook tooth, hook tooth and first pawl, the second click-fit are provided on one ratchet and the second ratchet so that transmission shaft is just
To or reversely rotate when, one of the first driven wheel and the second driven wheel are rotated with transmission shaft.
First pawl is arranged on the circumference of the first driven wheel, and the first pawl and the first driven wheel are connected with the first axis pin
It connects, the first pawl can be rotated around the first axis pin, and is provided on the first axis pin between the first pawl and the first driven wheel
One elastic device, the first elastic device cause the first pawl to be deflected to the hook tooth direction of the first ratchet.
Second pawl is arranged on the circumference of the second driven wheel, and the second pawl and the second driven wheel are connected with the second axis pin
It connects, the second pawl can be rotated around the second axis pin, and is provided on the second axis pin between the second pawl and the second driven wheel
Two elastic devices, the second elastic device cause the second pawl to be deflected to the hook tooth direction of the second ratchet.
The ratchet radius is 37.5mm, and 4 hook tooths, the forming method of the hook tooth are provided on the ratchet
For：Two orthogonal 4 deciles of diameter of ratchet, two diameters have 4 intersection points with ratchet circumference, diametrically square in each intersection point
To internal cutting 7.5mm, the cutting arc shape work piece between cutting end point and anticlockwise adjoining nodes forms hook tooth, described
Arc radius is 40mm.
First elastic device and the second elastic device are torsional spring.
The power plant is decelerating motor.
The advantageous effects of the present invention：
The present invention can be achieved with the single-direction transmission of both direction using a set of power plant and a set of transmission device, and structure is tight
It gathers, transmission efficiency.As a result of two driven wheels, when one of driven wheel winds rope, another is freely
State, so that rope remains uniform winding, the mouth that leaks informaton opening and closing is smooth uniformly.The ratchet structure of the present invention considers
Pawl noise caused by the ratchet flank of tooth is slided into next between cog, the abrasion of ratchet crown and transmission idle running and transmission impact
Etc. unfavorable factors, hook tooth number is very few, greater impact of the idle running and pawl when can inevitably result in transmission to ratchet,
Hook tooth number is more, can cause the processing cost of ratchet to increase, and noise is excessive, and the present invention designs at ratchet circumference quartile
4 hook tooths, and specific dimensions arc surface transition is utilized, the excessive wear of ratchet crown is avoided, reduces pawl and is sliding
Roughness during into next between cog reduces rotation idle running, reduces transmission impact, substantially prolongs making for transmission device
Use the service life.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is unidirectional transmission overall structure diagram
Fig. 2 is A-A directions side view
Fig. 3 is B-B directions side view
Fig. 4 is ratchet and ratchet tooth structure schematic diagram
Fig. 5 is greenhouse vertical view
Wherein：Transmission shaft 1, the first driven wheel 2-1, the second driven wheel 2-2, the first ratchet 3-1, the second ratchet 3-2, first
Pawl 4-1, the second pawl 4-2, hook tooth 5, the first elastic device 6-1, the second elastic device 6-2, the first axis pin 7-1, second
Axis pin 7-2, motor 8, first, second and third angle pulley 9-1,9-2,9-3, rope 10, first and second support shaft 11-1,11-2,
Connecting rod 12, leak informaton plastic film 13, lantern ring 14.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although this public affairs is shown in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to be best understood from the disclosure, and can be by this public affairs on the contrary, providing these embodiments
The range opened completely is communicated to those skilled in the art.
Referring to attached drawing 1, one kind is leaked informaton control device, and the control device that leaks informaton includes unidirectional transmission, described unidirectional
Transmission device include power plant (not shown), transmission shaft 1, the first ratchet 3-1, the second ratchet 3-2, the first pawl 4-1,
Second pawl 4-2, the first driven wheel 2-1 and the second driven wheel 2-2, power plant are connected with transmission shaft 1 with passing power, the
One driven wheel 2-1 and the second driven wheel 2-2 can be rotatably set on transmission shaft 1, the first ratchet 3-1, the second ratchet 3-
2nd, the installation position of the first driven wheel 2-1 and the second driven wheel 2-2 on transmission shaft is followed successively by：First the first spine of driven wheel 2-1-
3-1- the second ratchet the second driven wheels of 3-2- 2-2 is taken turns, the first pawl 4-1 is arranged on the circumference of the first driven wheel 2-1, the
Two pawl 4-2 are arranged on the circumference of the second driven wheel 4-2, and the first ratchet 3-1 and the second ratchet 3-2 are fixed with transmission shaft
Hook tooth, hook tooth and the first pawl 4-1, the second pawl are provided on connection, the first ratchet 3-1 and the second ratchet 3-2
4-2 coordinates so that when transmission shaft 1 rotates forward or backwards, one of the first driven wheel 2-1 and the second driven wheel 2-2 are with transmission shaft
Rotation.
Attached drawing 2 is A-A directions side view (in attached drawing 1, seeing from right to left) in attached drawing 1, and the first pawl 4-1 is arranged on
On the circumference of first driven wheel 2-1, the first pawl 4-1 and the first driven wheel 2-1 the first axis pin 7-1 connections, the first pawl 4-1
It can be rotated around the first axis pin 7-1, is provided on the first axis pin 7-1 between the first pawl 4-1 and the first driven wheel 2-1
One elastic device 6-1, the first elastic device 6-1 causes the first pawl 4-1 to be deflected to 5 direction of hook tooth of the first ratchet 3-1.
Attached drawing 3 is that B-B directions side view (in attached drawing 1, seeing from left to right) the second pawl 4-2 is arranged in attached drawing 1
On the circumference of second driven wheel 2-2, the second pawl 4-2 and the second driven wheel 2-2 the second axis pin 7-2 connections, the second pawl 4-2
It can be rotated around the second axis pin 7-2, is provided on the second axis pin 7-2 between the second pawl 4-2 and the second driven wheel 2-2
Two elastic device 6-2, the second elastic device 6-2 cause the second pawl 4-2 to be deflected to 5 direction of hook tooth of the second ratchet 3-2.
Hook tooth can also be other shapes, referring to attached drawing 4, the ratchet radius is other than the form in attached drawing 2,3
37.5mm is provided with 4 hook tooths on the ratchet, and the forming method of the hook tooth is：Ratchet is orthogonal straight with two
4 decile of diameter, two diameters have 4 intersection points with ratchet circumference, in each intersection point diametrically to internal cutting 7.5mm, are cutting
Cutting arc shape work piece between terminal and anticlockwise adjoining nodes, forms hook tooth, and the arc radius is 40mm.
The first elastic device 6-1 and the second elastic device 6-2 is torsional spring.
The power plant is decelerating motor.
In use, motor exports power to transmission shaft 1, it is assumed that it is to paper rotation in surface, table that transmission shaft 1 is seen from attached drawing 1
It is exactly now that transmission shaft 1 rotates clockwise in fig 2, the first pawl 4-1 is deflected under the action of torsional spring to the first ratchet 3-1,
Under the action of the first pawl 4-1 and the first ratchet 3-1, the first driven wheel 2-1 is also to rotate clockwise, and at this moment, shows attached
It is exactly that transmission shaft 1 rotates counterclockwise in Fig. 3, the second pawl 4-2 is deflected under the action of torsional spring to the second ratchet 3-2, the second spine
Pawl 4-2 slips over the hook tooth on the second ratchet 3-2, and the second driven wheel 2-2 is not rotated.When transmission shaft 1 is rotated to another direction
When, based on same principle, the second driven wheel 2-2 is rotated with transmission shaft 1, and the first driven wheel 2-1 is not rotated.So as to fulfill right
Claim the purpose of single-direction transmission.
Attached drawing 5 is that the unidirectional transmission of the present invention leaks informaton mouth for greenhouse, greenhouse including greenhouse body, be covered in greenhouse
Plastic film on ontology, leak informaton mouth and the control device that leaks informaton, and the mouth that leaks informaton is arranged on the plastic film, is covered on the mouth that leaks informaton
There is the plastic film 13 that leaks informaton, leaking informaton, plastic film 13 is rectangular, and one end is fixed with plastic film, and the other end is free end, from
Connecting rod 12 is provided with by end, under the control for the control device that leaks informaton, the free end slide-open for the plastic film 13 that leaks informaton or closing
Leak informaton mouth.
The control device that leaks informaton includes unidirectional transmission, rope 10, first, second and third angle pulley 9-1,9-2,9-3
With the lantern ring being fixed on rope 10, one end of rope 10 is wrapped on the first driven wheel 2-1 clockwise, and the other end passes through
Wrapped anti-clockwise is slided on the second driven wheel 2-2 in second and third commutation after first, second and third angle pulley 9-1,9-2,9-3
Lantern ring is provided on rope between wheel 9-2,9-3, connecting rod 12 is arranged in lantern ring and lantern ring can slide on connecting rod 12.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should the protection model with claim
Subject to enclosing.
Claims (7)
1. a kind of leak informaton the control device that leaks informaton of mouth for greenhouse, the control device that leaks informaton include unidirectional transmission, rope,
First angle pulley, the second angle pulley, third angle pulley and the lantern ring being fixed on the rope, the greenhouse leak informaton mouth
On covered with the plastic film that leaks informaton, the plastic film that leaks informaton is rectangular, and the free end of the plastic film that leaks informaton is provided with company
Bar, under the control of the control device that leaks informaton, the free end slide-open of the plastic film that leaks informaton or the closing greenhouse
Leak informaton mouth, and the unidirectional transmission includes power plant, transmission shaft, the first ratchet, the second ratchet, the first pawl, the second spine
Pawl, the first driven wheel and the second driven wheel, power plant are connected with transmission shaft with passing power, it is characterised in that：First from
Driving wheel and the second driven wheel can be rotatably set on transmission shaft, first ratchet, the second ratchet, the first driven wheel and second
Installation position of the driven wheel on transmission shaft is followed successively by：First driven wheel the-the first ratchet the-the second driven wheel of the-the second ratchet, it is described
First pawl is arranged on the circumference of the first driven wheel, and the second pawl is arranged on the circumference of the second driven wheel, first spine
Wheel and the second ratchet are fixedly connected with transmission shaft, are provided with hook tooth on the first ratchet and the second ratchet, hook tooth and described the
One pawl, the second click-fit so that when transmission shaft rotates forward or backwards, one of the first driven wheel and the second driven wheel are with biography
Moving axis rotates, and the ratchet radius is 37.5mm, and 4 hook tooths are provided on the ratchet, wherein, ratchet is orthogonal with two
4 decile of diameter, two diameters have 4 intersection points with ratchet circumference, in each intersection point diametrically to internal cutting 7.5mm,
Cutting arc shape work piece between cutting end point and anticlockwise adjoining nodes forms hook tooth, and the arc radius is 40mm, described
One end of rope is wrapped on first driven wheel clockwise, and the other end of the rope is slided by the described first commutation
Wheel, wrapped anti-clockwise is on second driven wheel after second angle pulley, the third angle pulley, described the
Another lantern ring is provided on rope between two angle pulleys and the third angle pulley, the connecting rod is arranged on described another
In lantern ring and another lantern ring can slide on the connecting rod,
The power plant exports power to the transmission shaft when in use, and the transmission shaft is under power effect along up time
Needle is rotated counterclockwise, and first pawl is deflected to first ratchet, in first pawl and first spine
Under the action of wheel, first driven wheel is rotated with the rotation direction identical with the transmission shaft, and second pawl is then
It is deflected to second ratchet, second pawl slips over the hook tooth on second ratchet, and second driven wheel does not produce
Raw rotation, so as to fulfill single-direction transmission, when axial another direction rotation of the transmission, second driven wheel is with the biography
Moving axis rotates, and first driven wheel does not generate rotation then.
2. the control device according to claim 1 that leaks informaton, it is characterised in that：First pawl is arranged on the first driven wheel
Circumference on, the first pawl and the first driven wheel are connected with the first axis pin, and the first pawl can be rotated around the first axis pin, first
Be provided with the first elastic device on the first axis pin between pawl and the first driven wheel, the first elastic device cause the first pawl to
The hook tooth direction deflection of first ratchet.
3. the control device according to claim 1 that leaks informaton, it is characterised in that：Second pawl is arranged on the second driven wheel
Circumference on, the second pawl and the second driven wheel are connected with the second axis pin, and the second pawl can be rotated around the second axis pin, second
Be provided with the second elastic device on the second axis pin between pawl and the second driven wheel, the second elastic device cause the second pawl to
The hook tooth direction deflection of second ratchet.
4. the control device according to claim 2 that leaks informaton, it is characterised in that：First elastic device is torsional spring.
5. the control device according to claim 3 that leaks informaton, it is characterised in that：Second elastic device is torsional spring.
6. leaked informaton control device according to claim 1-3 any one of them, it is characterised in that：The power plant is slows down
Motor.
7. a kind of purposes for the control device that leaked informaton according to claim 1-5 any one of them, it is characterised in that：The unidirectional biography
Dynamic device winds rope for the greenhouse mouth that leaks informaton, and is leaked informaton mouth with closing and opening greenhouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342212.7A CN106034853B (en) | 2016-05-20 | 2016-05-20 | A kind of control device that leaks informaton for the mouth that leaks informaton for greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342212.7A CN106034853B (en) | 2016-05-20 | 2016-05-20 | A kind of control device that leaks informaton for the mouth that leaks informaton for greenhouse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106034853A CN106034853A (en) | 2016-10-26 |
| CN106034853B true CN106034853B (en) | 2018-06-19 |
Family
ID=57176503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610342212.7A Active CN106034853B (en) | 2016-05-20 | 2016-05-20 | A kind of control device that leaks informaton for the mouth that leaks informaton for greenhouse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106034853B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379687A (en) * | 2018-12-28 | 2020-07-07 | 上海海立电器有限公司 | Pump press |
| CN113018119B (en) * | 2021-02-24 | 2023-04-11 | 重庆理工大学 | Multifunctional walking aid for old people and use method thereof |
| CN113007048B (en) * | 2021-03-16 | 2022-05-17 | 合肥工业大学 | Power generation device based on human knee joint and ankle joint drive |
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| CN204733688U (en) * | 2015-06-18 | 2015-11-04 | 辽宁省农业机械化研究所 | Dual -purpose roll manual electronic membrane ware of big -arch shelter |
| CN205040335U (en) * | 2015-09-18 | 2016-02-24 | 云南祥云圣龙农业庄园有限公司 | Membrane device is rolled up to high reliability greenhouse roofing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2660214Y (en) * | 2003-12-15 | 2004-12-01 | 西南师范大学 | Steel ball/roller ejecting mechanical torque speed driving sensor |
| CN201166065Y (en) * | 2008-02-27 | 2008-12-17 | 魏衍昌 | Bestride type motorcycle programmed control bidirectional fuel economizer |
| US7938241B1 (en) * | 2008-04-01 | 2011-05-10 | Chosen Co., Ltd. | Bicycle hub that will not produce noise |
| CN201290273Y (en) * | 2008-12-04 | 2009-08-19 | 北京丰隆温室科技有限公司 | Multiple thread friction wheel self-locking manual curl-up film device |
| CN102128220A (en) * | 2010-01-18 | 2011-07-20 | 张云龙 | Overrunning clutch |
| CN103114798A (en) * | 2013-02-07 | 2013-05-22 | 南京金星宇节能技术有限公司 | Building external sunshade wind resistance venetian blind driven by side chain |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106034853A (en) | 2016-10-26 |
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