CN207895577U - Driving device, cargo bed and automatic vending machine - Google Patents

Driving device, cargo bed and automatic vending machine Download PDF

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Publication number
CN207895577U
CN207895577U CN201721893352.XU CN201721893352U CN207895577U CN 207895577 U CN207895577 U CN 207895577U CN 201721893352 U CN201721893352 U CN 201721893352U CN 207895577 U CN207895577 U CN 207895577U
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China
Prior art keywords
motor
driving
transmission
component
power output
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CN201721893352.XU
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Chinese (zh)
Inventor
刘凯
魏洪泽
许逢博
张思博
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Shandong New Beiyang Information Technology Co Ltd
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Shandong New Beiyang Information Technology Co Ltd
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Abstract

A kind of driving device of the utility model offer, cargo bed and automatic vending machine, belong to selling apparatus field, driving device includes pedestal, be set to the motor of pedestal, the transmission mechanism being sequentially connected with the output shaft of motor and the power output wheel being sequentially connected with transmission mechanism;Transmission mechanism is used for when the output shaft of motor is rotated along the first preset direction, drives power output wheel rotation, and power output wheel is driven to be moved to the second position from first position;Transmission mechanism is used for when the output shaft of motor is rotated along the second preset direction, and power output wheel is driven to be moved to first position from the second position;First preset direction and the second preset direction are opposite.Cargo bed includes above-mentioned driving device.Automatic vending machine includes above-mentioned cargo bed.Driving device, cargo bed and automatic vending machine provided by the utility model have number of motors few, the low feature of manufacturing cost.

Description

Driving device, cargo bed and automatic vending machine
Technical field
The utility model is related to selling apparatus fields, in particular to a kind of driving device, cargo bed and automatic vending Machine.
Background technology
Automatic vending machine (VendingMachine, VEM) is the machine that can pay goods automatically according to the coin of input.Automatic selling Cargo aircraft is the commonly used equipment of business automation, it is not limited by time, place, can save manpower, facilitate transaction.
Automatic vending machine generally includes cabinet, the cargo bed for being set to interior of equipment cabinet and multiple cargo paths, wherein cabinet surface is set There is access section, multiple cargo paths are for placing kinds of goods, and cargo bed between cargo path and access section for delivering kinds of goods.In order to reduce into This, is usually provided with driving device, for providing the power for sending out cargo for each cargo path in cargo bed.But existing cargo bed Driving device structure it is complicated, the high defect of generally existing manufacturing cost.
Utility model content
It is simple in structure the purpose of this utility model is to provide a kind of driving device, have the characteristics that manufacturing cost is low.
The another object of the utility model is to provide a kind of cargo bed, with above-mentioned driving device, can reduce system Cause this.
The further object of the utility model is to provide a kind of automatic vending machine, with above-mentioned cargo bed, therefore have The low feature of manufacturing cost.
What the embodiments of the present invention were realized in:
A kind of driving device comprising:
Pedestal;
It is set to the motor of pedestal;
The transmission mechanism being sequentially connected with the output shaft of motor;And
The power output wheel being sequentially connected with transmission mechanism;
Wherein, transmission mechanism is used for when the output shaft of motor is rotated along the first preset direction, and driving power output wheel is certainly Turn, and power output wheel is driven to be moved to the second position from first position;Transmission mechanism is used for the output shaft in motor along second When preset direction rotates, power output wheel is driven to be moved to first position from the second position;First preset direction and second is preset Direction is opposite.
Preferably, transmission mechanism includes swing component, intermediate transmission component and single-direction transmission component;
Power output wheel is rotatablely arranged at swing component, and the output shaft of motor passes through intermediate transmission component and power output Wheel is sequentially connected;The output shaft of motor is connect by single-direction transmission component with swing component;
When the output shaft of motor is rotated along the first preset direction, the unlock of single-direction transmission component, work of the swing component in external force With lower positive swing, power output wheel is driven to be moved to the second position from first position, the power of motor passes through intermediate transmission group Part is transferred to power output wheel, so that power output wheel rotation;
When the output shaft of motor is rotated along the second preset direction, single-direction transmission component locking, the power of motor passes through list It is transferred to swing component to transmission component, so that swing component backswing under the driving of motor, drives power output wheel from second Position is moved to first position.
Preferably, the output shaft of motor passes sequentially through intermediate transmission component, single-direction transmission component is connect with swing component.
Preferably, single-direction transmission component includes unilateral bearing.
Preferably, intermediate transmission component includes first rotating shaft and the intermediate transmission wheel that is fixedly attached in first rotating shaft, the One shaft is rotatablely arranged at pedestal, and the inner ring of unilateral bearing is sheathed on first rotating shaft, the outer ring of unilateral bearing and swing component Connection;Intermediate transmission wheel is sequentially connected with the output shaft and power output wheel of motor simultaneously.
Preferably, swing component has the trend of positive swing under the effect of gravity.
Preferably, driving device further includes elastic component, and the both ends of elastic component are connect with pedestal and swing component respectively, elastic component For applying elastic force to swing component, swing component is made to have the trend of positive swing.
Preferably, driving device further includes testing agency, and testing agency is for detecting whether power output wheel reaches first Position.
A kind of cargo bed comprising cargo bed ontology and above-mentioned driving device, driving device are set on cargo bed ontology.
A kind of automatic vending machine comprising cargo path, the conveying device being arranged in cargo path and above-mentioned cargo bed;Power is defeated Go out wheel for coordinating in the second position and conveying device, the power of motor is transferred to conveying device.
The advantageous effect of the utility model embodiment is:
This driving device includes pedestal, is set to the motor of pedestal, the transmission mechanism with the output shaft rotation connection of motor And the power output wheel being sequentially connected with transmission mechanism, wherein transmission mechanism is used for default along first in the output shaft of motor When direction rotates, power output wheel rotation is driven, and power output wheel is driven to be moved to the second position from first position;Driver Structure is used for when the output shaft of motor is rotated along the second preset direction, and power output wheel is driven to be moved to first from the second position It sets;First preset direction and the second preset direction are opposite.This driving device can only pass through a motor (i.e. motor) while reality The rotation and movement of existing power output wheel, have the characteristics that simple in structure, manufacturing cost is low, effectively compensate for lacking for the prior art It falls into.
This cargo bed includes above-mentioned driving device, can reduce number of motors, have it is simple in structure, reduce manufacturing cost Feature effectively compensates for the defect of the prior art.
This automatic vending machine uses above-mentioned cargo bed, can reduce number of motors, with simple in structure, manufacturing cost is low Feature effectively compensates for the defect of the prior art.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the driving device that the utility model embodiment provides;
Fig. 2 is the structural schematic diagram at another visual angle for the driving device that the utility model embodiment provides;
Fig. 3 is the structural schematic diagram at the another visual angle for the driving device that the utility model embodiment provides;
Fig. 4 is the explosive view for the driving device that the utility model embodiment provides;
Fig. 5 is the structural schematic diagram for the cargo bed that the utility model embodiment provides;
Fig. 6 is the structural schematic diagram for the automatic vending machine that the utility model embodiment provides;
Fig. 7 is the status diagram when power output wheel that the utility model embodiment provides is driven with conveying device;
Fig. 8 is the status diagram when power output wheel that the utility model embodiment provides is detached with conveying device.
Icon:100- driving devices;110- pedestals;112- bottom plates;113- installation through-holes;114- risers;116- Erecting bed;120- motors;130- transmission mechanisms;131- intermediate transmission components;132- first rotating shafts;134- intermediate transmissions Wheel;136- motor output wheels;138- retarders;140- power output wheels;The second shafts of 142-;150- swing components; 160- testing agencies;170- single-direction transmission components;180- elastic components;The first preset directions of 190-;The default sides 192- second To;200- cargo beds;210- cargo bed ontologies;The inner cavities 212-;220- is open;230- third preset directions;300- automatic sellings Cargo aircraft;310- cargo paths;312- conveying devices.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing, to this Technical solution in utility model embodiment carries out clear, complete description.Obviously, described embodiment is the utility model A part of the embodiment, instead of all the embodiments.
Therefore, this claimed practicality is not intended to limit newly to the detailed description of the embodiments of the present invention below The range of type, but it is merely representative of the section Example of the utility model.Based on the embodiments of the present invention, this field is general The every other embodiment that logical technical staff is obtained without creative efforts belongs to the utility model guarantor The range of shield.
It should be noted that in the absence of conflict, feature in the embodiments of the present invention and embodiment and Technical solution can be combined with each other.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that term " first ", " second " etc. are only used for distinguishing description, It is not understood to indicate or imply relative importance.
Fig. 1 is the structural schematic diagram for the driving device 100 that the utility model embodiment provides, and Fig. 2 is that the utility model is real The structural schematic diagram at another visual angle of the driving device 100 of example offer is applied, Fig. 3 is the driving dress that the utility model embodiment provides The structural schematic diagram for setting 100 another visual angle, please refers to Fig. 1-3, present embodiments provides a kind of driving device 100 comprising Pedestal 110, the motor 120 for being set to pedestal 110, the transmission mechanism 130 being rotatablely connected with the output shaft of motor 120 and with biography The power output wheel 140 that motivation structure 130 is sequentially connected.Transmission mechanism 130 is used for the output shaft in motor 120 along the first default side To when 190 rotation, 140 rotation of power output wheel is driven, and power output wheel 140 is driven to be moved to second from first position It sets;Transmission mechanism 130 is used for when the output shaft of motor 120 is rotated along the second preset direction 192, drives power output wheel 140 It is moved to first position from the second position, the first preset direction 190 and the second preset direction 192 are opposite.
Wherein, pedestal 110 may include bottom plate 112, riser 114 and erecting bed 116.The edge of bottom plate 112 be provided with to Few two installation through-holes 113, so as to the installation of driving device 100.Riser 114 and erecting bed 116 are connected to bottom plate 112. In detail, riser 114 is generally rectangular and flips up to be formed by bottom plate 112, and erecting bed 116 is substantially in rectangular shape And it is fixedly installed on the upper surface of bottom plate 112.Motor 120 is installed on riser 114.
Fig. 4 is the explosive view for the driving device 100 that the utility model embodiment provides, and please refers to Fig. 4, transmission mechanism 130 Including swing component 150, intermediate transmission component 131 and single-direction transmission component 170.
Power output wheel 140 is rotatablely arranged at swing component 150, and the output shaft of motor 120 passes through intermediate transmission component 131 are sequentially connected with power output wheel 140;The output shaft of motor 120 is connect by single-direction transmission component 170 with swing component 150.
When the output shaft of motor 120 is rotated along the first preset direction 190, single-direction transmission component 170 unlocks, swing component 150 positive swings under the effect of external force, drive power output wheel 140 to be moved to the second position from first position, motor 120 Power is transferred to power output wheel 140 by intermediate transmission component 131, so that 140 rotation of power output wheel.
When the output shaft of motor 120 is rotated along the second preset direction 192,170 locking of single-direction transmission component, motor 120 Power swing component 150 is transferred to by single-direction transmission component 170 so that swing component 150 is reversely put under the driving of motor 120 It is dynamic, drive power output wheel 140 to be moved to first position from the second position.
Wherein, swing component 150 can be in strip and both ends are arcuate structure.Drive the positive swing of swing component 150 External force can be various forms of power, and in the present embodiment, external force can be the work of swing component 150 its own gravity and elastic component 180 Resultant force firmly.Swing component 150 has the trend of positive swing under the effect of gravity.Meanwhile driving device 100 is also wrapped Elastic component 180 is included, the both ends of elastic component 180 are connect with pedestal 110 and swing component 150 respectively, and elastic component 180 is used for swing component 150 apply elastic force, and swing component 150 is made to have the trend of positive swing.Elastic component 180 can use different knots as needed Configuration formula, in the present embodiment, elastic component 180 can be tension spring.In other embodiments, elastic component 180 or elastic string, Torsional spring etc..In other embodiments, external force may be its own gravity of swing component 150 and both active forces of elastic component 180 In one kind.
Intermediate transmission component 131 can use different structure type as needed, in the present embodiment, intermediate transmission component 131 may include first rotating shaft 132 and the intermediate transmission wheel 134 that is fixedly attached in first rotating shaft 132, and first rotating shaft 132 can It is rotatably arranged on erecting bed 116, intermediate transmission wheel 134 is driven with the output shaft and power output wheel 140 of motor 120 simultaneously Connection.Intermediate transmission wheel 134 can use different structure type as needed, and in the present embodiment, intermediate transmission wheel 134 can be with For gear.In other embodiments, intermediate transmission wheel 134 or belt wheel.
Optionally, intermediate transmission component 131 can also include retarder 138 and motor output wheel 136, motor 120 it is defeated Shaft, retarder 138, motor output wheel 136 and intermediate transmission wheel 134 are sequentially connected successively.In detail, retarder 138 is fixed Be installed on the side of riser 114, the output shaft of motor 120 is fixedly connected with the input terminal of retarder 138, retarder 138 it is defeated Outlet passes through riser 114 and is fixedly connected with motor output wheel 136.Motor output wheel 136 can use different as needed Structure type, in the present embodiment, motor output wheel 136 can be gear, to be engaged with intermediate transmission wheel 134.In other realities It applies in example, motor output wheel 136 or belt wheel.
Single-direction transmission component 170 can use a variety of different structure types as needed, in the present embodiment, single-direction transmission Component 170 includes unilateral bearing.The inner ring of unilateral bearing is sheathed on first rotating shaft 132, outer ring and the swing component 150 of unilateral bearing One end connection.In other embodiments, single-direction transmission component 170 or other structures form, such as ratchet structure.
Power output wheel 140 is set to the one end of swing component 150 far from unilateral bearing, and in detail, swing component 150 is far from single One end of bearing is provided with rotatable second shaft 142, power output wheel 140 is socketed in the second shaft 142.Power is defeated Different structure type can use as needed by going out wheel 140, and in the present embodiment, power output wheel 140 can be gear, so as to It is engaged with intermediate transmission wheel 134.
Driving device 100 can also include testing agency 160, and whether testing agency 160 is for detecting power output wheel 140 Reach first position.After testing agency 160 detects that power output wheel 140 reaches first position, motor 120 stops operating.
The operation principle and process of driving device 100 provided in this embodiment are such:
When that need not be output to the outside power, power output wheel 140 is located at first position, and the output shaft of motor 120 is not Rotation, correspondingly, motor output wheel 136, intermediate transmission wheel 134 and power output wheel 140 are in stationary state, swing component 150 have the positive trend swung under the action of its own gravity and elastic component 180.
When needing to be output to the outside power, the output shaft of motor 120 is rotated along the first preset direction 190, drives motor Output wheel 136 is rotated along the first preset direction 190, to drive intermediate transmission wheel 134 to be rotated along the second preset direction 192, into And drive power output wheel 140 along 190 rotation of the first preset direction, meanwhile, single-direction transmission component 170 is in the unlocked state, pendulum Moving part 150 is positive under the action of its own gravity and elastic component 180 to be swung, to drive power output wheel 140 from first position It is moved to the second position.
When needing to stop being output to the outside power, the output shaft of motor 120 is rotated along the second preset direction 192, is driven Motor output wheel 136 is rotated along the second preset direction 192, to drive intermediate transmission wheel 134 along 190 turns of the first preset direction It is dynamic, and then first rotating shaft 132 is driven to be rotated along the first preset direction 190, since single-direction transmission component 170 is in locking shape at this time State, therefore the meeting of swing component 150 backswing under the drive of first rotating shaft 132, to drive power output wheel 140 from second It sets and is moved to first position, after reaching first position, motor 120 stops operating.
It should be noted that in the present embodiment, the first preset direction 190 is counterclockwise the second preset direction 192 For clockwise.First position is cocked position, and the second position is lowered position (i.e. first position is higher than the second position). In other embodiments, the first preset direction 190 or clockwise direction, correspondingly, the second preset direction 192 may be Counterclockwise, when for example motor 120 is directly connect with first rotating shaft 132.First position is also with for lowered position, correspondingly, The second position may be cocked position (i.e. first position is less than the second position), such as when the inversion of entire driving device 100.
Output shaft of this driving device 100 including pedestal 110, the motor 120 for being set to pedestal 110 and motor 120 is driven The transmission mechanism 130 of connection and the power output wheel 140 being sequentially connected with transmission mechanism 130, wherein transmission mechanism 130 is used When the output shaft in motor 120 is rotated along the first preset direction 190,140 rotation of power output wheel is driven, and drive power defeated Go out wheel 140 and is moved to the second position from first position;Transmission mechanism 130 is used for the output shaft in motor 120 along the second default side To when 192 rotation, power output wheel 140 is driven to be moved to first position from the second position;First preset direction 190 and second is pre- Set direction 192 is opposite.This driving device 100 can only realize the rotation and movement of gear simultaneously by a motor 120, have Feature simple in structure, manufacturing cost is low effectively compensates for the defect of the prior art.
It should be noted that this driving device 100 can be used for as needed it is various be related in the equipment of driving wheel, such as The cargo bed 200 of automatic vending machine 300.
Fig. 5 is the structural schematic diagram for the cargo bed 200 that the utility model embodiment provides, and please refers to Fig. 5, the present embodiment provides A kind of cargo bed 200 comprising cargo bed ontology 210 and above-mentioned driving device 100, cargo bed ontology 210 are frame structure and big It causes to be cuboid, cargo bed ontology 210 has inner cavity 212 and two openings 220 being connected to inner cavity 212 respectively, two openings 220 are spaced setting along third preset direction 230, and driving device 100 is set in inner cavity 212 and is adjacent at an opening 220. This cargo bed 200 can effectively reduce 120 quantity of motor, simple in structure, reduction due to using above-mentioned driving device 100 Manufacturing cost effectively makes up the defect of the prior art.
It should be noted that this cargo bed 200 can be used for as needed in the various equipment for needing splendid attire and transporting kinds of goods, Such as automatic vending machine 300, kinds of goods Transporting equipment, kinds of goods process equipment etc..
Fig. 6 is the structural schematic diagram for the automatic vending machine 300 that the utility model embodiment provides, and please refers to Fig. 6, this implementation Example provides a kind of automatic vending machine 300 comprising cargo path 310, the conveying device 312 being arranged in the cargo path 310 and Above-mentioned cargo bed 200.Cargo path 310 has multiple and arranged side by side, and a conveying device 312 is arranged in each cargo path 310, for should Kinds of goods in cargo path 310 are sent out.When cargo bed 200 and one of cargo path 310 to it is corresponding when cargo bed 200 driving device 100 it is dynamic Power output wheel 140 is moved to the second position from first position, so that power output wheel 140 is in the second position and the cargo path 310 conveying device 312 coordinates, and the power of the motor 120 of driving device 100 is transferred to conveying device 312, defeated to drive Sending device 312 to convey kinds of goods, (see Fig. 7, Fig. 7 is the power output wheel 140 and conveying device 312 that the utility model embodiment provides Status diagram when transmission).When that need not convey kinds of goods, the power output wheel 140 of driving device 100 is moved by the second position Dynamic first position, power output 140 are detached with conveying device 312, and conveying device 312 stops conveying (is this reality see Fig. 8, Fig. 8 The status diagram when power output wheel 140 provided with new embodiment is detached with conveying device 312).
This automatic vending machine 300 uses above-mentioned cargo bed 200, has 120 quantity of motor few, simple in structure, manufacturing cost Low feature effectively compensates for the defect of the prior art.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of driving device, which is characterized in that including:
Pedestal;
It is set to the motor of the pedestal;
The transmission mechanism being sequentially connected with the output shaft of the motor;And
The power output wheel being sequentially connected with the transmission mechanism;
Wherein, the transmission mechanism is used for when the output shaft of the motor is rotated along the first preset direction, drives the power Output wheel rotation, and the power output wheel is driven to be moved to the second position from first position;The transmission mechanism is used in institute When stating the output shaft of motor and being rotated along the second preset direction, the power output wheel is driven to be moved to first from the second position It sets;First preset direction and second preset direction are opposite.
2. driving device according to claim 1, which is characterized in that the transmission mechanism includes swing component, intermediate transmission Component and single-direction transmission component;
The power output wheel is rotatablely arranged at the swing component, and the output shaft of the motor passes through the intermediate transmission group Part is sequentially connected with the power output wheel;The output shaft of the motor is connected by the single-direction transmission component and the swing component It connects;
When the output shaft of the motor is rotated along first preset direction, the single-direction transmission component unlock, the swing Part is positive under the effect of external force to be swung, and the power output wheel is driven to be moved to the second position, the motor from first position Power the power output wheel is transferred to by the intermediate transmission component so that the power output wheel rotation;
When the output shaft of the motor is rotated along second preset direction, the single-direction transmission component locking, the motor Power the swing component is transferred to by the single-direction transmission component so that the swing component is anti-under the driving of the motor To swing, the power output wheel is driven to be moved to first position from the second position.
3. driving device according to claim 2, which is characterized in that the output shaft of the motor passes sequentially through the centre Transmission component, the single-direction transmission component are connect with the swing component.
4. driving device according to claim 3, which is characterized in that the single-direction transmission component includes unilateral bearing.
5. driving device according to claim 4, which is characterized in that the intermediate transmission component includes first rotating shaft and consolidates Surely the intermediate transmission wheel being socketed in the first rotating shaft, the first rotating shaft are rotatablely arranged at the pedestal, the list It is sheathed on the first rotating shaft to the inner ring of bearing, the outer ring of the unilateral bearing is connect with the swing component;The intermediate biography Driving wheel is sequentially connected with the output shaft of the motor and the power output wheel simultaneously.
6. driving device according to claim 2, which is characterized in that the swing component has under the effect of gravity The trend that forward direction is swung.
7. driving device according to claim 2, which is characterized in that the driving device further includes elastic component, the bullet Property part both ends connect respectively with the pedestal and the swing component, the elastic component be used for the swing component apply elasticity Power makes the swing component have the trend of positive swing.
8. driving device according to claim 1, which is characterized in that the driving device further includes testing agency, described Testing agency is for detecting whether the power output wheel reaches the first position.
9. a kind of cargo bed, which is characterized in that including the driving device described in cargo bed ontology and claim 1-8 any one, institute Driving device is stated to be set on the cargo bed ontology.
10. a kind of automatic vending machine, which is characterized in that including cargo path, the conveying device and right that are arranged in the cargo path It is required that the cargo bed described in 9;The power output wheel is used to coordinate in the second position and the conveying device, by the motor Power be transferred to the conveying device.
CN201721893352.XU 2017-12-29 2017-12-29 Driving device, cargo bed and automatic vending machine Active CN207895577U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721893352.XU CN207895577U (en) 2017-12-29 2017-12-29 Driving device, cargo bed and automatic vending machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721893352.XU CN207895577U (en) 2017-12-29 2017-12-29 Driving device, cargo bed and automatic vending machine

Publications (1)

Publication Number Publication Date
CN207895577U true CN207895577U (en) 2018-09-21

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Application Number Title Priority Date Filing Date
CN201721893352.XU Active CN207895577U (en) 2017-12-29 2017-12-29 Driving device, cargo bed and automatic vending machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020024942A1 (en) * 2018-08-03 2020-02-06 威海新北洋数码科技有限公司 Cabinet and vending machine
CN111839020A (en) * 2019-04-29 2020-10-30 威海新北洋数码科技有限公司 Self-carrying cabinet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020024942A1 (en) * 2018-08-03 2020-02-06 威海新北洋数码科技有限公司 Cabinet and vending machine
CN111839020A (en) * 2019-04-29 2020-10-30 威海新北洋数码科技有限公司 Self-carrying cabinet
CN111839020B (en) * 2019-04-29 2022-02-01 威海新北洋数码科技有限公司 Self-carrying cabinet

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