CN109859331A - A kind of dust-protection type ticket-selling device for urban transportation based on block chain technology - Google Patents
A kind of dust-protection type ticket-selling device for urban transportation based on block chain technology Download PDFInfo
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- CN109859331A CN109859331A CN201910167912.0A CN201910167912A CN109859331A CN 109859331 A CN109859331 A CN 109859331A CN 201910167912 A CN201910167912 A CN 201910167912A CN 109859331 A CN109859331 A CN 109859331A
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Abstract
The present invention relates to a kind of dust-protection type ticket-selling devices for urban transportation based on block chain technology, including main body and display screen, the inside of the main body is equipped with elevating mechanism, the elevating mechanism includes driving assembly, transmission component, pedestal, bottom plate, first guide rail, second guide rail, two sliding sleeves, two drive blocks and two drive rods, the side of the close display screen of the main body is equipped with dust-proof mechanism, the dust-proof mechanism includes accommodating groove, first motor, roller, dustproof shade, elevating lever, two slide bars, two lifting sleeves and two springs, the dust-protection type ticket-selling device for urban transportation based on block chain technology, the lifting of main body and display screen is realized by elevating mechanism, the user of different heights is set clearly to watch display screen, to improve the practicability of ticket machine, it is realized by dust-proof mechanism anti- The folding and unfolding of dirt curtain, to be realized by dustproof shade to the dust-proof of display screen, to improve the anti-dust performance of ticket machine.
Description
Technical field
The present invention relates to a kind of dust-protection type ticket-selling devices for urban transportation based on block chain technology.
Background technique
Block chain technology is that algorithm of knowing together with storing data, using distributed node is verified using block linked data structure
Guarantee the safety of data transmission and access with more new data, in the way of cryptography, using by automatized script generation to generate
The intelligent contract of code composition programs the completely new distributed basis framework and calculation of one kind with operation data, is distributed
The new application mode of the computer technologies such as data storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm.
The data safety degree of block chain technology is higher, and application is also very extensive, wherein just including ticket issuing equipment application
Technical field.
The ticket machine of the prior art is typically all to use traditional data encryption mode, it is easy to loss of data is caused, and
And the display screen of the ticket machine of the prior art is chronically exposed to outside, causes to be easy a large amount of dust of accumulation on display screen, to drop
The clarity that low display screen is shown, reduces the practicability of ticket machine, moreover, when people of different heights is using ticketing
When machine, the angle that people watch display screen is different, causes height excessively high or too low people can not see the aobvious of small screen clearly
Show content, to further reduced the practicability of ticket machine.
Summary of the invention
The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, providing a kind of based on block chain skill
The dust-protection type ticket-selling device for urban transportation of art.
The technical solution adopted by the present invention to solve the technical problems is: a kind of handing over for city based on block chain technology
Logical dust-protection type ticket-selling device, including main body and display screen, the display screen are arranged in the side of main body, are equipped in the main body
Processor and memory, the processor and memory electrical connection, the memory receive the block chain of block chain link point write-in
Data, and block chain data are stored；
The inside of the main body is equipped with elevating mechanism, and the elevating mechanism includes driving assembly, transmission component, pedestal, bottom
Plate, the first guide rail, the second guide rail, two sliding sleeves, two drive blocks and two drive rods, the bottom of the main body, which is equipped with, opens
Mouthful, the pedestal is matched with opening, and the inside of opening is arranged in the pedestal, and the lower section of pedestal is arranged in the bottom plate, described
First guide rail is horizontally set on the top of the inner wall of opening, and the top of pedestal, first guide rail is arranged in second guide rail
It is parallel to each other with the second guide rail, two sliding sleeves are respectively sleeved at the both ends of the first guide rail, and two drive blocks are respectively sleeved at
The both ends of second guide rail, two drive rods are arranged in a crossed manner, are hinged in the middle part of two drive rods, one end point of two drive rods
It is not hinged on two sliding sleeves, the other end of two drive rods is respectively hinged on two drive blocks, the transmission component
The lower section of second guide rail is set, and the middle part of the second guide rail is arranged in the driving component；
The side of the close display screen of the main body is equipped with dust-proof mechanism, and the dust-proof mechanism includes accommodating groove, the first electricity
Machine, roller, dustproof shade, elevating lever, two slide bars, two lifting sleeves and two springs, the accommodating groove are arranged in display screen
Lower section, the both ends of the roller pass through respectively the inner wall of a bearing block and accommodating groove two sides connection, the first motor
The side of accommodating groove is set, and the first motor is connect with drum drive, and two slide bars are vertically provided at accommodating groove respectively
The two sides of top, two lifting sleeves are respectively sleeved on two slide bars, and the elevating lever is horizontally set on two lifting sleeves
Between, the top of the accommodating groove is equipped with fluting, and the dustproof shade passes through fluting, and one end of the dustproof shade is wound on roller
On periphery, the other end of the dustproof shade is connect with elevating lever, and two springs are respectively sleeved on two slide bars, and the spring is set
It sets between lifting sleeve and accommodating groove, the spring is in compressive state.
Preferably, transmission and storage in order to realize data, the processor is interior to be equipped with block catenary system, the block
Catenary system includes data Layer, network layer, common recognition layer, excitation layer, contract layer and application layer, and the block chain data source is in data
Layer.
Preferably, in order to improve the degree of automation of ticket machine, the processor is single-chip microcontroller or PLC, the storage
Device includes memory database and disk database, and the memory database and disk database receive the write-in of block chain link point respectively
Block chain data, and block chain data are stored.
Preferably, the driving component includes the second motor and first gear, described in order to provide power to drive block
The middle part of the second guide rail is arranged in second motor, and second motor and first gear are sequentially connected.
Preferably, the transmission component includes second gear and two screw rods, two silks in order to drive drive block mobile
Bar is parallel to each other with the second guide rail, and two screw rods are arranged at the lower section of the second guide rail, and two screw rods are separately positioned on second
The two sides of gear, the hand of spiral of two screw rods is on the contrary, two screw rods are each passed through two drive blocks, and two screw rods are respectively with two
A drive block is threadedly coupled, and the second gear is engaged with first gear.
Preferably, in order to improve the dust-proof effect of dustproof shade, the two sides of the dustproof shade are equipped with magnetic stripe.
Preferably, in order to improve the dust-proof effect to display screen, the side of the close main body of the elevating lever is equipped with anti-
Dirt item.
Preferably, in order to improve the stability of lifting sleeve, the top of the slide bar is equipped with limit plate, the limit plate
It is fixedly connected with main body.
Preferably, in order to improve the stability of main body, the top at the both ends of the bottom plate is vertically provided with one respectively
Reinforcing bar, the bottom end of the two sides of the main body are respectively arranged with a reinforcing casing, and two reinforcing bars are each passed through two reinforcings
Casing.
Preferably, being coated with lubricating grease on the screw rod to improve drive block mobile smooth degree.
The invention has the advantages that being somebody's turn to do the dust-protection type ticket-selling device for urban transportation based on block chain technology, adopt
Data storage is carried out with block chain technology, so that data safety degree is high, also, main body and display are realized by elevating mechanism
The lifting of screen allows the user of different heights clearly to watch display screen, and existing to improve the practicability of ticket machine
Elevating mechanism is compared, which improves the stability of main body by the connection function before reinforcing bar and reinforcing casing,
The folding and unfolding of dustproof shade is moreover realized by dust-proof mechanism to improve the stability of ticket machine, thus by dust-proof
Curtain is realized to the dust-proof of display screen, so that the anti-dust performance of ticket machine is improved, compared with existing dust-proof mechanism, the dust-proof machine
Structure can drive dust excluder lifting while dustproof shade folding and unfolding by elevating lever, to be carried out by dust excluder to display screen
Cleaning, to further improve the clarity that display screen is shown.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the block catenary system of the dust-protection type ticket-selling device for urban transportation of the invention based on block chain technology
Systematic schematic diagram；
Fig. 2 is the structural representation of the dust-protection type ticket-selling device for urban transportation of the invention based on block chain technology
Figure；
Fig. 3 is the dust-proof mechanism of the dust-protection type ticket-selling device for urban transportation of the invention based on block chain technology
Structural schematic diagram；
Fig. 4 is the elevating mechanism of the dust-protection type ticket-selling device for urban transportation of the invention based on block chain technology
Structural schematic diagram；
Fig. 5 is the portion the A enlarged drawing of Fig. 4；
In figure: 1. accommodating grooves, 2. rollers, 3. dustproof shades, 4. magnetic stripes, 5. main bodys, 6. display screens, 7. slide bars, 8. dust excluders,
9. elevating lever, 10. lifting sleeves, 11. springs, 12. first motors, 13. first guide rails, 14. sliding sleeves, 15. drive rods,
16. drive block, 17. second guide rails, 18. bottom plates, 19. pedestals, 20. screw rods, 21. reinforce casing, 22. reinforcing bars, 23. first teeth
Wheel, 24. second motors, 25. second gears.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of dust-protection type ticket-selling device for urban transportation based on block chain technology, including main body 5
With display screen 6, the main body 5 is interior to be equipped with processor and memory, and the processor and memory electrical connection, the memory connect
By the block chain data that block chain node is written, and block chain data are stored, block linkwork is equipped in the processor
System, the block catenary system include data Layer, network layer, common recognition layer, excitation layer, contract layer and application layer, the block chain number
According to data Layer is derived from, the processor is single-chip microcontroller or PLC, and the memory includes memory database and disk database,
The memory database and disk database receive respectively block chain link point write-in block chain data, and to block chain data into
Row storage.
In fact, processor is mainly used for handling data, and memory is stored for data, herein:
Data Layer encapsulates bottom data block and the technologies such as relevant data encryption and timestamp；
In fact, the block chain data that memory database and disk database receive or store come from data
Layer.
Network layer then includes distributed networking mechanism, data dissemination mechanism and data authentication mechanism etc.；
All kinds of common recognition algorithms of common recognition layer predominant package network node；
Economic factor is integrated into block chain technical system by excitation layer, main issuing mechanism including economic incentives and
Distribution mechanism etc.；
All kinds of scripts of contract layer predominant package, algorithm and intelligent contract, are the bases of block chain programmable features；
Application layer then encapsulates the various application scenarios and case of block chain.
As shown in Fig. 2, a kind of dust-protection type ticket-selling device for urban transportation based on block chain technology, the display screen
6 are arranged in the side of main body 5；
As illustrated in figures 4-5, the inside of the main body 5 is equipped with elevating mechanism, and the elevating mechanism includes driving assembly, transmission
Component, pedestal 19, bottom plate 18, the first guide rail 13,17, two, the second guide rail drive block 16 of sliding sleeve 14, two and two biographies
Lever 15, the bottom of the main body 5 are equipped with opening, and the pedestal 19 is matched with opening, and the pedestal 19 is arranged in opening
The lower section of pedestal 19 is arranged in portion, the bottom plate 18, and first guide rail 13 is horizontally set on the top of the inner wall of opening, described
The top of pedestal 19 is arranged in second guide rail 17, and first guide rail 13 is parallel to each other with the second guide rail 17, two sliding sleeves
14 are respectively sleeved at the both ends of the first guide rail 13, and two drive blocks 16 are respectively sleeved at the both ends of the second guide rail 17, two transmissions
Bar 15 is arranged in a crossed manner, and the middle part of two drive rods 15 is hinged, and one end of two drive rods 15 is respectively hinged at two slidings
On casing 14, the other end of two drive rods 15 is respectively hinged on two drive blocks 16, and the transmission component is arranged second
The middle part of the second guide rail 17 is arranged in the lower section of guide rail 17, the driving component；
User provides power by control ticket machine, by driving assembly, under the transmission effect of transmission component, driving two
A drive block 16 is close to each other along the second guide rail 17 or is located remotely from each other, when two drive blocks 16 are close to each other,
Under the transmission effect of first guide rail 13 and two sliding sleeves 14, drive main body 5 along on pedestal 19 by two drive rods 15
It rises, when two drive blocks 16 are located remotely from each other, under the transmission effect of the first guide rail 13 and two sliding sleeves 14, passes through
Two drive rods 15 drive main body 5 to decline along pedestal 19, realize the lifting of display screen 6 by the lifting of main body 5 later, from
And the clarity that people of different heights watch display screen 6 is improved, to improve the practicability of ticket machine；
As shown in figure 3, the side of the close display screen 6 of the main body 5 is equipped with dust-proof mechanism, the dust-proof mechanism includes receiving
Receive slot 1, first motor 12, roller 2, dustproof shade 3, the lifting sleeve 10 of slide bar 7, two of elevating lever 9, two and two springs 11,
The accommodating groove 1 is arranged in the lower section of display screen 6, and the both ends of the roller 2 pass through the interior of a bearing block and accommodating groove 1 respectively
The two sides of wall connect, and the side of accommodating groove 1 is arranged in the first motor 12, and the first motor 12 is sequentially connected with roller 2,
Two slide bars 7 are vertically provided at the two sides of the top of accommodating groove 1 respectively, and two lifting sleeves 10 are respectively sleeved at two slide bars 7
On, the elevating lever 9 is horizontally set between two lifting sleeves 10, and the top of the accommodating groove 1 is equipped with fluting, described dust-proof
Curtain 3 passes through fluting, and one end of the dustproof shade 3 is on the periphery of roller 2, the other end and elevating lever 9 of the dustproof shade 3
Connection, two springs 11 are respectively sleeved on two slide bars 7, and the spring 11 is arranged between lifting sleeve 10 and accommodating groove 1,
The spring 11 is in compressive state；
Drive roller 2 in the inner rotation of accommodating groove 1 by first motor 12, to realize dustproof shade 3 by roller 2
Folding and unfolding, when dustproof shade 3 unclamp when, two lifting sleeves 10 are respectively driven under the action of two spring 11 along two
Slide bar 7 rises, to drive elevating lever 9 to rise by two lifting sleeves 10, one end of dustproof shade 3 is driven by elevating lever 9
Rise, display screen 6 is blocked by dustproof shade 3 later, realizes the dust-proof effect to display screen 6, thus to further increasing
The practicability of ticket machine pulls elevating lever 9 to decline when dustproof shade 3 is retracted into 1 inside of accommodating groove when by dustproof shade 2,
To make display screen 6 can be used normally.
As illustrated in figures 4-5, the driving component includes the second motor 24 and first gear 23, and second motor 24 is arranged
At the middle part of the second guide rail 17, second motor 24 is sequentially connected with first gear 23；
The transmission component includes second gear 25 and two screw rods 20, and two screw rods 20 are mutually flat with the second guide rail 17
Row, two screw rods 20 are arranged at the lower section of the second guide rail 17, and two screw rods 20 are separately positioned on the two sides of second gear 25, and two
On the contrary, two screw rods 20 are each passed through two drive blocks 16, two screw rods 20 drive with two the hand of spiral of a screw rod 20 respectively
Motion block 16 is threadedly coupled, and the second gear 25 is engaged with first gear 23；
It drives first gear 23 to rotate by the second motor 24, drives second gear 25 to rotate by first gear 23, it
Two screw rods 20 are driven to rotate by second gear 25 afterwards, to drive two drive blocks 16 along the second guide rail by screw rod 20
17 is close to each other or be located remotely from each other.
Preferably, in order to improve the dust-proof effect of dustproof shade 3, the two sides of the dustproof shade 3 are equipped with magnetic stripe 4, pass through
The two sides of dustproof shade 3 can be adsorbed in main body 5 by magnetic stripe 4, so that the gap between dustproof shade 3 and main body 5 is reduced, thus
Improve the anti-dust performance of dustproof shade 3.
Preferably, in order to improve the dust-proof effect to display screen 6, the side of the close main body 5 of the elevating lever 9 is equipped with
Dust excluder 8 not only reduces the gap between elevating lever 9 and main body 5 by dust excluder 8, to improve to the anti-of display screen 6
Dirt effect, while driving dust excluder 8 to go up and down by elevating lever 9, to be cleaned by dust excluder 8 to display screen 6, to mention
The clarity that high display screen 6 is shown.
Preferably, in order to improve the stability of lifting sleeve 10, the top of the slide bar 7 is equipped with limit plate, the limit
Position plate is fixedly connected with main body 5, by the supporting role of limit plate, improves the stability of slide bar 7, while in the work of limit plate
Under, the probability that lifting sleeve 10 is detached from from slide bar 7 is reduced, to improve the stability of lifting sleeve 10.
Preferably, in order to improve the stability of main body 5, the top at the both ends of the bottom plate 18 is vertically provided with one respectively
A reinforcing bar 22, the bottom end of the two sides of the main body 5 are respectively arranged with a reinforcing casing 21, and two reinforcing bars 22 are each passed through
Two reinforcing casings 21 improve the stability of reinforcing bar 22 by reinforcing casing 21, while alloing reinforcing bar 22 along adding
Gu casing 21 is gone up and down, the stability that bottom plate 18 is connect with main body 5 is improved by reinforcing bar 22 later, to improve main body 5
Stability in lifting process.
Preferably, being coated with lubricating grease in order to improve the mobile smooth degree of drive block 16 on the screw rod 20, passing through lubrication
Rouge reduces the frictional force between drive block 16 and screw rod 20, to improve the mobile smooth degree of drive block 16.
User provides power by control ticket machine, by driving assembly, under the transmission effect of transmission component, driving two
A drive block 16 is close to each other along the second guide rail 17 or is located remotely from each other, to drive main body 5 to decline along pedestal 19, later
The lifting of display screen 6 is realized by the lifting of main body 5, so that improving people of different heights watches the clear of display screen 6
Degree drives roller 2 in the inner rotation of accommodating groove 1, thus logical to improve the practicability of ticket machine by first motor 12
Crossing roller 2 realizes the folding and unfolding of dustproof shade 3, when dustproof shade 3 unclamps, respectively drives two under the action of two spring 11
A lifting sleeve 10 rises along two slide bars 7, to drive elevating lever 9 to rise by two lifting sleeves 10, passes through lifting
Bar 9 drives one end of dustproof shade 3 to rise, and later blocks display screen 6 by dustproof shade 3, realizes the dust-proof effect to display screen 6
Fruit, thus to the practicability of ticket machine is further improved.
Compared with prior art, it is somebody's turn to do the dust-protection type ticket-selling device for urban transportation based on block chain technology, passes through liter
Descending mechanism realizes the lifting of main body 5 and display screen 6, so that the user of different heights is clearly watched display screen 6, to mention
The high practicability of ticket machine, compared with existing elevating mechanism, the elevating mechanism is by reinforcing bar 22 and reinforces before casing 21
Connection function, improve the stability of main body 1, to improve the stability of ticket machine, moreover, pass through dust-proof mechanism
The folding and unfolding of dustproof shade 3 is realized, to realize by dustproof shade 3 to the dust-proof of display screen 6, to improve the anti-of ticket machine
Dirt performance, compared with existing dust-proof mechanism, which can be driven anti-while 3 folding and unfolding of dustproof shade by elevating lever 9
Dirt item 9 is gone up and down, to be cleaned by dust excluder 9 to display screen 6, to further improve the clear of the display of display screen 6
Degree.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. a kind of dust-protection type ticket-selling device for urban transportation based on block chain technology, including main body (5) and display screen
(6), side of display screen (6) setting in main body (5), which is characterized in that processor and storage are equipped in the main body (5)
Device, the processor and memory electrical connection, the memory receive the block chain data of block chain link point write-in, and to block
Chain data are stored；
The inside of the main body (5) be equipped with elevating mechanism, the elevating mechanism include driving assembly, transmission component, pedestal (19),
Bottom plate (18), the first guide rail (13), the second guide rail (17), two sliding sleeves (14), two drive blocks (16) and two transmissions
Bar (15), the bottom of the main body (5) are equipped with opening, and the pedestal (19) matches with opening, and pedestal (19) setting is being opened
The inside of mouth, the bottom plate (18) are arranged in the lower section of pedestal (19), and first guide rail (13) is horizontally set on the interior of opening
The top of wall, second guide rail (17) are arranged in the top of pedestal (19), first guide rail (13) and the second guide rail (17)
It is parallel to each other, two sliding sleeves (14) are respectively sleeved at the both ends of the first guide rail (13), and two drive blocks (16) are arranged respectively
At the both ends of the second guide rail (17), two drive rods (15) are arranged in a crossed manner, are hinged in the middle part of two drive rods (15), and two
One end of drive rod (15) is respectively hinged on two sliding sleeves (14), and the other end of two drive rods (15) is respectively hinged at
On two drive blocks (16), in the lower section of the second guide rail (17), the driving component is arranged second for the transmission component setting
The middle part of guide rail (17)；
The side of the close display screen (6) of the main body (5) is equipped with dust-proof mechanism, and the dust-proof mechanism includes accommodating groove (1), the
One motor (12), roller (2), dustproof shade (3), elevating lever (9), two slide bars (7), two lifting sleeves (10) and two springs
(11), the accommodating groove (1) is arranged in the lower section of display screen (6), the both ends of the roller (2) pass through respectively a bearing block with
The two sides of the inner wall of accommodating groove (1) connect, and the first motor (12) is arranged in the side of accommodating groove (1), the first motor
(12) it is sequentially connected with roller (2), two slide bars (7) are vertically provided at the two sides of the top of accommodating groove (1), two liftings respectively
Casing (10) is respectively sleeved on two slide bars (7), and the elevating lever (9) is horizontally set between two lifting sleeves (10),
The top of the accommodating groove (1) is equipped with fluting, and the dustproof shade (3) passes through fluting, and one end of the dustproof shade (3) is wound on rolling
On the periphery of cylinder (2), the other end of the dustproof shade (3) is connect with elevating lever (9), and two springs (11) are respectively sleeved at two
On slide bar (7), the spring (11) is arranged between lifting sleeve (10) and accommodating groove (1), and the spring (11) is in compression
State.
2. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In being equipped with block catenary system in, the processor, the block catenary system include data Layer, network layer, common recognition layer, excitation layer,
Contract layer and application layer, the block chain data source is in data Layer.
3. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In the processor is single-chip microcontroller or PLC, and the memory includes memory database and disk database, the internal storage data
Library and disk database receive the block chain data of block chain link point write-in respectively, and store to block chain data.
4. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In the driving component includes the second motor (24) and first gear (23), and second motor (24) is arranged in the second guide rail
(17) middle part, second motor (24) and first gear (23) are sequentially connected.
5. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In, the transmission component include second gear (25) and two screw rods (20), two screw rods (20) with the second guide rail (17) phase
Mutually parallel, two screw rods (20) are arranged at the lower section of the second guide rail (17), and two screw rods (20) are separately positioned on second gear
(25) two sides, the hand of spiral of two screw rods (20) is on the contrary, two screw rods (20) are each passed through two drive blocks (16), and two
Screw rod (20) is threadedly coupled with two drive blocks (16) respectively, and the second gear (25) is engaged with first gear (23).
6. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In the two sides of the dustproof shade (3) are equipped with magnetic stripe (4).
7. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In the side of the close main body (5) of the elevating lever (9) is equipped with dust excluder (8).
8. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In the top of the slide bar (7) is equipped with limit plate, and the limit plate is fixedly connected with main body (5).
9. as described in claim 1 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In the top at the both ends of the bottom plate (18) is vertically provided with a reinforcing bar (22), the bottom of the two sides of the main body (5) respectively
End is respectively arranged with a reinforcing casing (21), and two reinforcing bars (22) are each passed through two reinforcing casings (21).
10. as claimed in claim 5 based on the dust-protection type ticket-selling device for urban transportation of block chain technology, feature exists
In being coated with lubricating grease on the screw rod (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167912.0A CN109859331A (en) | 2019-03-06 | 2019-03-06 | A kind of dust-protection type ticket-selling device for urban transportation based on block chain technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167912.0A CN109859331A (en) | 2019-03-06 | 2019-03-06 | A kind of dust-protection type ticket-selling device for urban transportation based on block chain technology |
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| CN109859331A true CN109859331A (en) | 2019-06-07 |
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| CN201910167912.0A Withdrawn CN109859331A (en) | 2019-03-06 | 2019-03-06 | A kind of dust-protection type ticket-selling device for urban transportation based on block chain technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110973775A (en) * | 2019-12-05 | 2020-04-10 | 深圳市俊达通办公智能科技有限公司 | Intelligent wristband comfortable to wear based on block chain technology |
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Application publication date: 20190607 |