CN102987678A - Electric travelling mechanism for draw-bar box - Google Patents
Electric travelling mechanism for draw-bar box Download PDFInfo
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- CN102987678A CN102987678A CN2012104997710A CN201210499771A CN102987678A CN 102987678 A CN102987678 A CN 102987678A CN 2012104997710 A CN2012104997710 A CN 2012104997710A CN 201210499771 A CN201210499771 A CN 201210499771A CN 102987678 A CN102987678 A CN 102987678A
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Abstract
The invention provides an electric travelling mechanism for a draw-bar box. The motor travelling mechanism comprises a transmission shaft and a wheel hub which are connected with each other by virtue of a clutch, wherein the clutch is connected with a pull rod; and the transmission shaft comprises a left transmission shaft and a right transmission shaft, the left transmission shaft and the right transmission shaft are respectively connected with output shafts arranged at two ends of a differential, and the differential is connected with the output shaft of a motor by virtue of a first bevel gear. The motor travelling mechanism is simple and light in structure, and flexible, and when unequal resistance is applied onto wheels arranged at two ends of the left transmission shaft and the right transmission shaft, the speed difference between the wheels can be balanced by the autoroatation of a third bevel gear, so that the rotation of the wheels arranged at the two ends can not be interfered with each other, therefore, the smooth turning can be carried out, the wear of the wheels can be avoided, the loss of electric energy can be reduced, the motor travelling mechanism has the effects of shock absorption and shock reduction, the electric travelling of pull rod boxes such as a trunk and an engineering box can be realized, and the electric travelling mechanism is simple in structure, is flexible to use, and can be used for greatly facilitating the travel of people.
Description
Technical field
The invention belongs to mechano-electronic control technology field, relate to a kind of draw-bar box, be specifically related to a kind of electric walking mechanism for draw-bar box.
Background technology
For people go out accommodatingly, existing luggage case and engineering box substantially all are provided with roller and pull bar.As long as spur pull bar, chest can roll on the ground, and is more laborsaving during walking.But with the quickening pace of modern life, need to carry large numbers of items, particularly professional when people go on a journey and go out to carry the article such as various device, by manpower pulling very effort, and limited the increasing of casing, therefore, demand urgently coming out with luggage case and the engineering box of electric walking mechanism.
Summary of the invention
The purpose of this invention is to provide a kind of electric walking mechanism for draw-bar box, solve the problem that existing draw-bar box adopts manpower to draw row to exist, realize the electric walking of draw-bar box.
The object of the present invention is achieved like this, and a kind of electric walking mechanism for draw-bar box comprises that power transmission shaft is connected with wheel hub to connect by clutch, and clutch is connected with pull bar; Power transmission shaft comprises left and right power transmission shaft, and left and right power transmission shaft is connected with the output shaft at differential mechanism two ends respectively, is connected with motor output shaft by the first angular wheel on the differential mechanism.
Characteristics of the present invention also are:
Clutch comprises driving disc spacing pressing, clutch plate and the spring that arranges on the power transmission shaft, clutch plate is fixedly connected with wheel hub, driving disc spacing pressing is connected with the clutch plate contact by the spring extruding, the cross section of power transmission shaft and driving disc spacing pressing contact portion is hexagon, drive driving disc spacing pressing by power transmission shaft and rotate, rotate thereby drive wheel hub by the frictional force transferring power between driving disc spacing pressing and the clutch plate.
Clutch also comprises vertical tooth bar and horizontal tooth bar, vertically tooth bar is connected with pull bar, laterally tooth bar is connected with vertical tooth bar by gear, a laterally end of tooth bar and the outward flange clamping of driving disc spacing pressing, move inward by vertical tooth bar, the horizontal tooth bar pulling of gear driven driving disc spacing pressing when pull bar moves downward, separate with clutch plate.
Differential mechanism comprises the second angular wheel that is separately positioned on the left and right power transmission shaft, the Left Drive axle is provided with the gear fixed mount, one end of gear fixed mount is cylindrical shape and sets firmly the first angular wheel that is connected with motor output shaft, the other end of gear fixed mount has two bifurcateds, and the end of two bifurcateds respectively is installed with a triconic gear and all meshes with two the second angular wheels that are fixedly arranged on respectively on the left and right power transmission shaft.
Also comprise spring shock-absorbing post and differential mechanism casing, differential mechanism is arranged in the differential mechanism casing, the output shaft at differential mechanism two ends stretches out with left and right sides power transmission shaft from the differential mechanism casing and is connected, the differential mechanism casing is provided with upper arm plate and the lower arm plate that can vertically rotate, the end of upper arm plate and lower arm plate is fixed in fixing frame for transmission shaft, box body of draw-bar box is provided with spring fixator, wear the spring joint pin on the spring fixator, one end of spring shock-absorbing post is arranged on the lower arm plate, and the other end is connected on the spring joint pin.
Two output shafts that stretch out at left and right sides power transmission shaft and differential mechanism casing two ends consist of respectively articulation structure, each articulation structure can make power transmission shaft carry out a swing in the plane, the swinging plane of two articulation structure formation is vertical, articulation structure can make power transmission shaft and motor output shaft rotate with uniform velocity, simultaneously, the transmission the tip of the axis can be done the circular cone swing.
The electric walking mechanism that is used for draw-bar box powers to motor by battery.
The electric walking mechanism that is used for draw-bar box also comprises multi-function jack, multi-function jack comprises panel and the jack and the supplemental button that are arranged on the panel, be provided with back-up block between the jack, back-up block and supplemental button consist of lever by the rotating shaft on connecting rod and the connecting rod, press supplemental button when pulling the plug out of the socket, connecting rod rotates around the shaft, is about to plug on the back-up block prop up, thereby plug easily can be extracted.
Be set with back-moving spring on the back-up block, panel is fixed in the upper end of back-moving spring, and the lower end is free end, and rotating shaft is fixedly arranged on the bottom surface of panel.
The back-up block outside is provided with insulating sleeve.
Jack comprises two-phase jack and three-phase jack.
Also be provided with USB interface on the panel.
The present invention also comprises warning device; warning device comprises single-chip microcomputer, radio receiving transmitting module and the buzzer as master controller; whether single-chip microcomputer can carry out normal transmission by detecting radio receiving transmitting module, receive signal is judged that claimed article are whether in safe range; if exceed safe range, single-chip microcomputer sends alarm signal by buzzer.
The present invention has following beneficial effect:
1, the present invention is simple in structure, light.When the draw-bar box user runs into block up highway section or two wheels fully stuck by barrier the time; give thrust backward of pull bar; this thrust will be delivered to clutch by pull bar; make wheel break away from power transmission; power transmission shaft just can not bear very large moment because of the stuck of wheel, thereby plays the effect of protection motor.
2, the present invention is motor-driven, flexible.When the wheel at power transmission shaft two ends, the left and right sides is subject to not waiting resistance, the speed discrepancy between the wheel can by the triconic gear certainly transfer balance so that the rotation of two ends wheel do not interfere, thereby turn round smoothly, and avoided the wearing and tearing of wheel, reduced the loss of electric energy.
3, the present invention can make lower arm plate with the power transmission shaft pressuring spring shock absorber strut that moves upward simultaneously, thereby reaches the effect of shock-absorbing and damping.
4, the multi-function jack of the present invention's configuration arranges back-up block between jack, and consists of lever with supplemental button by the rotating shaft on connecting rod and the connecting rod, as long as by the supplemental button on the lower panel, plug easily can be extracted when pulling the plug out of the socket, and is easy to use.
5, the present invention has realized the electric walking of the draw-bar boxes such as luggage case, engineering box, and is simple in structure, uses flexibly, is very easy to people's trip.
Description of drawings
Fig. 1 is the electric walking mechanism structure figure that the present invention is used for draw-bar box;
Fig. 2 is the electric walking mechanism clutch structure chart that the present invention is used for draw-bar box;
Fig. 3 is the differential design figure of electric walking mechanism that the present invention is used for draw-bar box;
Fig. 4 is the electric walking mechanism shock absorbing apparatus structure chart that the present invention is used for draw-bar box;
Fig. 5 is the circuit diagram that the present invention is used for the electric walking mechanism warning system of draw-bar box;
Fig. 6 is the electric walking mechanism multi-function jack structural representation that the present invention is used for draw-bar box;
Fig. 7 is the Multifunctional socket panel figure of electric walking mechanism that the present invention is used for draw-bar box.
Among the figure, 1. wheel hub, 2. power transmission shaft, 3. clutch plate, 4. thrust bearing, 5. ball bearing, 6. driving disc spacing pressing, 7. horizontal tooth bar, 8. tooth case, 9. fixing frame for transmission shaft, 10. lower arm plate, 11. upper arm versions, 12. the casing fixed mount, 13. spring fixators, 14. spring joint pins, 15. spring shock-absorbing posts, 16. the differential mechanism casing, 17. differential mechanisms, 18. box body of draw-bar boxes, 19. anti-theft devices, 20. pull bar, 21. tires, 22. shock-absorbing supports, 23. lower boxes, 24. the Left Drive axle, 25. first angular wheels, 26. gear fixed mounts, 27. right power transmission shafts, 28. the second angular wheel, 29. triconic gears, 30. range adjusters, 31. radio receiving transmitting module, 32. single-chip microcomputers, 33. power supplys, 34. buzzer, 35.LED indicator lamp, 36. delayed time systems, 37. servomotor, 38. supplemental button, 39. connecting rod I, 40. the connecting rod II, 41. rotating shaft I, 42. rotating shaft II, 43. support bar, 44. insulating sleeves, 45. plugs, 46. Double-hole sockets, 47. Three-hole socket, 48. two USB(A types) interface, 49. back-moving springs.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the invention is elaborated.
Embodiment, a kind of electric walking mechanism for draw-bar box referring to Fig. 1, comprises that power transmission shaft 2 is connected with wheel hub and by the clutch connection, clutch is connected with pull bar 20; Power transmission shaft 2 comprises Left Drive axle 24, right power transmission shaft 27, and Left Drive axle 24, right power transmission shaft 27 are connected with the output shaft at differential mechanism 17 two ends respectively, and differential mechanism 17 is connected with motor output shaft by the first angular wheel.
Referring to Fig. 2, clutch comprises power transmission shaft 2, and the two ends of power transmission shaft 2 are provided with wheel hub 1, and power transmission shaft 2 is provided with driving disc spacing pressing 6, clutch plate 3 and spring; Vertically tooth bar is connected with pull bar 20, and laterally tooth bar 7 is connected with vertical tooth bar by gear, a laterally end of tooth bar 7 and the outward flange clamping of driving disc spacing pressing 6.It is exactly complete wheel that wheel hub 1 outside puts rubber tyre 21, wheel hub 1 is connected on the clutch plate 3 by screw, driving disc spacing pressing 6 is compressed on clutch plate 3 and wheel hub 1 edge by spring, power transmission shaft 2 is hexagons with the part cross section of driving disc spacing pressing 6 contacts, being convenient to drive driving disc spacing pressing 6 rotates, remainder is smooth cylinder, be convenient to shock-absorbing support 22 and clutch plate 3 not with power transmission shaft 2 rotations, the edge of driving disc spacing pressing 6 is step-like, being convenient to horizontal tooth bar 7 can block it, and laterally tooth bar 7 puts in tooth case 8 and engaged gears.Shock-absorbing support 22 is enclosed within on the power transmission shaft 2 and with spring shock-absorbing post 15 and is connected.
Referring to Fig. 3, what wherein stablize overall architecture is gear fixed mount 26, gear fixed mount 26 is Y-shaped forks, left end is drum, can pass Left Drive axle 24 and bearing, right-hand member forked section interface is cuboid, thickness want to bear when the draw-bar box full load still indeformable, the Y type fork right-hand member connects the second angular wheel 28 partial cross sections and becomes cylinder, and the second angular wheel 28 and triconic gear 29 can smoothly rotate.Left Drive axle 24 and right power transmission shaft 27 etc. are thick, can not relatively rotate between the second angular wheel 28 that two shaft ends connect and the power transmission shaft, the first angular wheel 25 that the Y type fork left end connects is to receive the power that motor transmits, so the first angular wheel 25 can not with Y type fork between relative rotation occurs, also be to fix by key.When draw-bar box turned round, the path of wheel was circular arc, if draw-bar box is turned left, the central point of circular arc is in the left side, in the identical time, the camber line that right-hand wheel is walked is longer than left side wheel, iff using an axle to connect two wheels, not only can strengthen the consumption of electric energy with the wearing and tearing of wheel, also can make draw-bar box turn to difficulty, for this difference of balance, will left side wheel slow, the right wheel is quicker, remedies the difference of distance with different rotating speeds.
Referring to Fig. 4, structure is the most inboard to be the differential mechanism casing 16 of parcel differential mechanism 17, former and later two half shells are anterior in conjunction with also differential mechanism 17 being placed on the inside by screw and box body of draw-bar box 18, the right and left is two output shafts that stretch out differential mechanism 17 two ends, Stability Analysis of Structures for differential mechanism casing 18, former and later two faces at differential mechanism casing 18 add two by the fixing casing fixed mount 12 of four screws again, connection for transmission axle 2 on the output shaft at differential mechanism 17 two ends, connect upper arm plate 11 and the lower wall panels 10 that vertically to rotate at differential mechanism casing 16, the terminal connection for transmission shaft holder 9 of upper arm plate 11 and lower wall panels 10, the fixing relative position of upper arm plate 11 and lower wall panels 10, and power transmission shaft 2 is therefrom passed, make power transmission shaft 2 swing up and down with upper arm plate 11 and lower wall panels 10 to swing up and down the three parallel all the time, box body of draw-bar box 18 be provided with spring fixator 13, spring fixator 13 two ends wear spring joint pin 14, like this, the right and left respectively fills a spring shock-absorbing post 15, spring shock-absorbing post 15 1 ends are connected on the spring joint pin 14, and the other end is connected on the lower arm plate 10.
Referring to Fig. 6, Fig. 7, the present invention also comprises multi-function jack, and panel is rectangle plane, and the above is provided with two-phase jack 46, three-phase jack 47, USB interface 48 and supplemental button 38.Being equipped with back-up block 43 between the jack of two-phase jack 46, three-phase jack 47 is connected by connecting rod I 39, connecting rod II 40 with corresponding supplemental button 38, connecting rod II 40 be provided be fixed in panel bottom rotating shaft I 41 as fulcrum, back-up block 43 and corresponding supplemental button 38, connecting rod II 40 and rotating shaft I 41, rotating shaft II 42 formation levers.Be set with back-moving spring 49 on the back-up block 43, panel is fixed in the upper end of back-moving spring 49, and the lower end is free end.Back-up block 43 outsides are provided with insulating sleeve 44.
Charged, pressed supplemental button 38 when pulling the plug out of the socket, connecting rod 40 is 41 rotations around the shaft, are about to plug on the back-up block 43 prop up, thereby plug easily can be extracted.Back-moving spring 49 is finished the work back-up block 43 pop into position afterwards.
When a wheel was subject to upwarding pressure, upper arm plate 11 and lower wall panels 10 can be carried the power transmission shaft 2 that is fixed on therebetween and be shunk in the other direction to pressure together, realized shock-absorbing effect, thereby reached the shock-absorbing purpose.
When the wheel at power transmission shaft 2 two ends is subject to not waiting resistance, the speed discrepancy between the wheel can by triconic gear 29 certainly transfer balance so that the rotation of the rotation of left end wheel and right-hand member wheel is not interfered.When the wheel of power transmission shaft 2 both sides is not subject to any resistance or is subject to equal resistance, power is passed to Y type fork by the first angular wheel 25, Y type fork rotation so that two of right-hand members longitudinally the second angular wheel 28 rotation does not occur with respect to power transmission shaft 2 rotations, when two wheels are subject to different resistance, being subject to the large side of resistance can pass on moving axis 2 to resistance and pass to two the second angular wheels 28, this moment, the second angular wheel 28 not only can be around final drive shaft 2 rotations, and the generation rotation, and then do not affect the proper motion of another side wheel.
When the draw-bar box user run into block up highway section or two wheels fully stuck by barrier the time people's natural reaction be exactly 20 1 thrusts backward of pull bar to draw-bar box, this thrust will be delivered to clutch by pull bar 20, so that driving disc spacing pressing 6 Compress Springs break away from clutch plate 3, it should be noted that, because be to conduct power by friction between driving disc spacing pressing 6 and the clutch plate 3, so two dishes must be selected different materials, so that static friction factor is larger between the two.Do not have stuck or client's normal speed when motion at tire, spring extruding driving disc spacing pressing 6, driving disc spacing pressing 6 extruding clutch plates 3, clutch plate 3 by driving disc spacing pressing 6 with it the friction heel between contact-making surface rotate with driving disc spacing pressing 6, when tire is stuck or the user thinks to underspeed suddenly when stopping even, the user understands subconscious to 20 1 power backward of pull bar, this power so that vertical tooth bar move downward, gear by tooth case 8 is so that horizontal interior to movement to wheel of tooth bar 7, it is mobile simultaneously in the same way that thereby pulling driving disc spacing pressing 6 is followed horizontal tooth bar 7, this moment driving disc spacing pressing 6 extrusion springs, spring contraction, driving disc spacing pressing 6 is followed the extruding that breaks away from when power transmission shaft 2 rotates clutch plate 3, because do not had to contact and push between clutch plate 3 and the driving disc spacing pressing 6, also can smoothly rotate with between the power transmission shaft 2, so this moment, driven pulley 3 broke away from the control of motor fully, controlled by the people, when the client wants to allow motor again get involved, need only with common draw-bar box the same, hauling pull bar 20 exerts oneself toward last, driving disc spacing pressing 6 contacts and pushes with clutch plate 3 at once, this moment, motor was got involved, clutch plate 3 with driving disc spacing pressing 6 synchronized rotations.Case lower body 23 is for motor, front fork, the structure that the parts such as differential mechanism are fixed together, what the bottom was used is an industrial plank, and it has lightweight, on-deformable characteristic, four screws are arranged with front fork on it, and the differential mechanism that is fixed within the front fork casing is fixed on the plank, and motor also can be fixed on the plank simultaneously, also has the parts such as cell switch.
The present invention also comprises warning device; warning device comprises the single-chip microcomputer 32 as master controller; range adjuster 30; radio receiving transmitting module 31; power supply 33 and buzzer 34; LED light 35; delayed time system 36; whether single-chip microcomputer 32 can carry out normal transmission by detecting radio receiving transmitting module 31; receive signal and judge that claimed article are whether in safe range; by range adjuster 30; the user can arbitrarily regulate the scope that oneself sees fit and carry out anti-theft measure; whole warning device is by power supply 33 power supplies; if exceed safe range, then sending by buzzer 34 can be shinny by alarm signal and the LED light 35 in 36 control times of delayed time system.
Present embodiment adopts STC89LE52RC-3V single-chip microcomputer 32 as master controller; use two wireless module 31nrf24l01 respectively as emission and accept module (safe range is 3---20m), whether can carry out normal transmission by detecting radio receiving transmitting module 31nrf24l01, receive signal and judge that claimed article are whether in safe range.When the distance of transmitting-receiving between two modules during at " safe range " (about 20m), system's normal operation, transfer of data is normal; If exceed this safe range, then the normal data that can't carry out of system transmits, and this Time Controller (MCU) can send alarm signal, reminds owner to note.The workflow of this circuit is: receiving circuit is powered on, make receiver module be in accepting state, wait the arrival of pending data; Then move the program on the single-chip microcomputer 32, the data transmission of depositing in advance in the one-chip register is gone out.If the distance of transmitter module and receiver module is in " safe range ", receiver module can receive signal in 1ms, can not report to the police.If exceed " safe range ", receiver module will be buzzer 34 warning that pipes, and drives simultaneously servomotor 37 and makes tire lock stubbornly refuse and can rotate.
Claims (10)
1. electric walking mechanism that is used for draw-bar box is characterized in that: comprise that power transmission shaft (2) is connected 1 with wheel hub) and by the clutch connection, described clutch is connected with pull bar (20); Described power transmission shaft (2) comprises left and right power transmission shaft (24,27), and described left and right power transmission shaft (24,27) is connected with the output shaft at differential mechanism (17) two ends respectively, and described differential mechanism (17) is connected with motor output shaft by the first angular wheel (25).
2. the electric walking mechanism for draw-bar box as claimed in claim 1, it is characterized in that: described clutch comprises the upper driving disc spacing pressing (6) that arranges of power transmission shaft (2), clutch plate (3) and back-moving spring (49), described clutch plate (3) is fixedly connected with wheel hub (1), described driving disc spacing pressing (6) is connected with clutch plate (3) contact by the spring extruding, described power transmission shaft (2) is hexagon with the cross section of driving disc spacing pressing (6) contact portion, drive driving disc spacing pressing (6) by power transmission shaft (2) and rotate, driving disc spacing pressing (6) and clutch plate (3) thus between drive wheel hub (1) rotation by the frictional force transferring power.
3. the electric walking mechanism for draw-bar box as claimed in claim 1, it is characterized in that: described clutch also comprises vertical tooth bar and horizontal tooth bar (7), described vertical tooth bar is connected with pull bar (20), described horizontal tooth bar (7) is connected with vertical tooth bar by gear, a laterally end of tooth bar (7) and the outward flange clamping of driving disc spacing pressing (2), described pull bar (20) moves inward by vertical tooth bar, the horizontal tooth bar of gear driven (7) pulling driving disc spacing pressing (6) when moving downward, and separates with clutch plate (3).
4. the electric walking mechanism for draw-bar box as claimed in claim 1, it is characterized in that: described differential mechanism (17) comprises and is separately positioned on a described left side, right power transmission shaft (24,27) the second angular wheel (28) on, described Left Drive axle (24) is provided with gear fixed mount (26), one end of described gear fixed mount (26) is cylindrical shape and sets firmly the first angular wheel (25) that is connected with motor output shaft, the other end of gear fixed mount (25) has two bifurcateds, the end of two bifurcateds respectively be installed with a triconic gear (29) and all be fixedly arranged on respectively a left side, two the second angular wheels (28) engagement on the right power transmission shaft (24,25).
5. such as each described electric walking mechanism for draw-bar box of claim 1-4, it is characterized in that: also comprise spring shock-absorbing post (15) and differential mechanism casing (16), described differential mechanism (17) is arranged in the differential mechanism casing (16), the output shaft at differential mechanism (17) two ends stretches out and a described left side from differential mechanism casing (16), right power transmission shaft (24,27) connect, described differential mechanism casing (16) is provided with upper arm plate (11) and the lower arm plate (10) that can vertically rotate, the end of described upper arm plate (11) and lower arm plate (10) is fixed in fixing frame for transmission shaft (9), box body of draw-bar box (18) is provided with spring fixator (13), wear spring joint pin (14) on the described spring fixator (13), one end of described spring shock-absorbing post (15) is arranged on the lower arm plate (10), and the other end is connected on the spring joint pin (14).
6. the electric walking mechanism for draw-bar box as claimed in claim 5, it is characterized in that: described left and right sides power transmission shaft (24,27) two output shafts that stretch out with differential mechanism casing (16) two ends consist of respectively articulation structure, each articulation structure can make power transmission shaft (2) carry out a swing in the plane, the swinging plane of two articulation structure formation is vertical, articulation structure can make power transmission shaft (2) and motor output shaft rotate with uniform velocity, simultaneously, the end of power transmission shaft (2) can be done the circular cone swing.
7. such as each described electric walking mechanism for draw-bar box of claim 1-4, it is characterized in that: power to described motor by battery.
8. such as each described electric walking mechanism for draw-bar box of claim 1-4, it is characterized in that: also comprise multi-function jack, described multi-function jack comprises panel and the jack (45) and the supplemental button (38) that are arranged on the panel, be provided with back-up block (43) between the jack (45), described back-up block (43) consists of lever with supplemental button (38) by the rotating shaft (41) on connecting rod (40) and the connecting rod (40), press supplemental button (38) when pulling the plug out of the socket (45), connecting rod (40) is (41) rotation around the shaft, be about to plug (45) on the back-up block (43) and prop up, thereby plug (45) easily can be extracted.
9. the electric walking mechanism for draw-bar box as claimed in claim 8, it is characterized in that: be set with back-moving spring (49) on the described back-up block (43), panel is fixed in the upper end of described back-moving spring (49), the lower end is free end, rotating shaft (41) is fixedly arranged on the bottom surface of panel, back-up block (43) outside is provided with insulating sleeve (44), and jack comprises two-phase jack (46) and three-phase jack (47), also is provided with USB interface (48) on the panel.
10. such as each described electric walking mechanism for draw-bar box of claim 1-4; it is characterized in that: also comprise warning device; described warning device comprises single-chip microcomputer (32), radio receiving transmitting module (31) and the buzzer (34) as master controller; whether described single-chip microcomputer (32) can carry out normal transmission by detecting radio receiving transmitting module (31), receive signal is judged that claimed article are whether in safe range; if exceed safe range, single-chip microcomputer (32) sends alarm signal by buzzer (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499771.0A CN102987678B (en) | 2012-11-28 | 2012-11-28 | Electric travelling mechanism for draw-bar box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499771.0A CN102987678B (en) | 2012-11-28 | 2012-11-28 | Electric travelling mechanism for draw-bar box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102987678A true CN102987678A (en) | 2013-03-27 |
| CN102987678B CN102987678B (en) | 2015-01-21 |
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ID=47917154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210499771.0A Expired - Fee Related CN102987678B (en) | 2012-11-28 | 2012-11-28 | Electric travelling mechanism for draw-bar box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102987678B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107198319A (en) * | 2017-06-27 | 2017-09-26 | 浙江工贸职业技术学院 | Luggage case with running gear |
| CN109319033A (en) * | 2018-10-18 | 2019-02-12 | 昆山福宏康复科技有限公司 | A kind of clutch pack for folding stand |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940267A (en) * | 1989-09-14 | 1990-07-10 | Shieh Jin Ren | Bracing medium for case or the like |
| CN1124009A (en) * | 1994-01-21 | 1996-06-05 | 新秀丽公司 | Wheeled luggage with carrying handle |
| DE102006005227B3 (en) * | 2006-02-01 | 2007-06-06 | Cuma Kilic | Motor driven shopping trolley has wheels with coupling shaft and two detachable clutches, whereby electrically driven motor is arranged centrically on shaft between two detachable clutches |
| CN201296167Y (en) * | 2008-09-02 | 2009-08-26 | 黄艳斌 | Power transmission system for four-wheel drive motor vehicle |
| CN102182811A (en) * | 2011-03-27 | 2011-09-14 | 欧阳富 | Beyond gear shifting implement |
-
2012
- 2012-11-28 CN CN201210499771.0A patent/CN102987678B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940267A (en) * | 1989-09-14 | 1990-07-10 | Shieh Jin Ren | Bracing medium for case or the like |
| CN1124009A (en) * | 1994-01-21 | 1996-06-05 | 新秀丽公司 | Wheeled luggage with carrying handle |
| DE102006005227B3 (en) * | 2006-02-01 | 2007-06-06 | Cuma Kilic | Motor driven shopping trolley has wheels with coupling shaft and two detachable clutches, whereby electrically driven motor is arranged centrically on shaft between two detachable clutches |
| CN201296167Y (en) * | 2008-09-02 | 2009-08-26 | 黄艳斌 | Power transmission system for four-wheel drive motor vehicle |
| CN102182811A (en) * | 2011-03-27 | 2011-09-14 | 欧阳富 | Beyond gear shifting implement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107198319A (en) * | 2017-06-27 | 2017-09-26 | 浙江工贸职业技术学院 | Luggage case with running gear |
| CN109319033A (en) * | 2018-10-18 | 2019-02-12 | 昆山福宏康复科技有限公司 | A kind of clutch pack for folding stand |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102987678B (en) | 2015-01-21 |
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