CN102661300A - Air charging air cylinder for bus - Google Patents
Air charging air cylinder for bus Download PDFInfo
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- CN102661300A CN102661300A CN2012101600329A CN201210160032A CN102661300A CN 102661300 A CN102661300 A CN 102661300A CN 2012101600329 A CN2012101600329 A CN 2012101600329A CN 201210160032 A CN201210160032 A CN 201210160032A CN 102661300 A CN102661300 A CN 102661300A
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- 230000007423 decrease Effects 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 26
- 230000000630 rising effect Effects 0.000 claims description 22
- 230000003139 buffering effect Effects 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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- 230000007115 recruitment Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Abstract
The invention relates to a lifting three-stage air cylinder, in particular to an air charging air cylinder for a bus. The air charging air cylinder for the bus comprises a primary cylinder body, a piston rod and a large piston, wherein the large piston separates an inner cavity of the cylinder body into an ascending air pressure cavity and a large piston pushing cavity, the ascending air pressure cavity is communicated with an ascending air inlet pipe, a secondary cylinder body which is fixed into a whole with the large piston is arranged in the large piston pushing cavity, a small piston is arranged in an inner cavity of the secondary cylinder body, and one end of the piston rod is fixedly arranged on the small piston, the large piston pushing cavity is communicated with a descending air inlet pipe fixedly arranged at the upper part of a case of the primary cylinder body, the small piston separates the inner cavity of the secondary cylinder body into a small piston pushing cavity and a descending air pressure cavity, the descending air pressure cavity is communicated with the descending air inlet pipe, and the piston rod is connected with an end opening of the secondary cylinder body through a front plug in a sealed way. Because of the structure, the air charging air cylinder has the advantages that the charging operation safety and the control precision are improved, no impact load exists, the service life of the air cylinder is prolonged, and the use cost of enterprises is reduced.
Description
Technical field
The present invention relates to three-stage cylinder, specifically be a kind ofly improve the charging operations Security, improve control accuracy, no impulsive load, the passenger vehicle that prolongs cylinder working life and reduction enterprise user cost are charged cylinder in the air.
Technical background
Existing charging passenger vehicle great majority adopt the ground charging modes; Be about to electroplax and ground power supply through plug-in mode conducting charging, adopt the deficiency of plug-in charging to be that Security is low, each charging all needs manual operation; Manual work has high input, and the user cost of enterprise is higher.
For solving the problem of above-mentioned Security, be to utilize cylinder to drive electroplax to go up and down in the existing technology, realize the mode of aerial charging; Adopt this technology after; Because electroplax and power supply are accomplished conducting aloft, and be contactless with ground, make whole charging process safety and convenient.In this technology, cylinder is through the control valve rod, and valve rod promotes electroplax and moves up and down, and realizes the conducting and the disconnection of electroplax and aerial power supply.Yet; The valve rod of existing technology resets and is that Returnning spring in the pressure work chamber realizes by being arranged on; Because in the working procedure that promotes the valve rod rising, Returnning spring can be given reversal interlocking relay of valve rod, the shift length that makes valve rod rise is restive on design load; Control accuracy is low, also needs artificial the cooperation sometimes.Utilize cylinder to drive also to have in the electroplax lifting technology through the valve rod deadweight to reset, this structure in use, what cylinder adopted is high-pressure air source; The motion speed of valve rod is too fast in the cylinder, makes valve rod move the promotion electroplax on moment, and the impulsive load of cylinder is big; Produce very harsh noise in the course of the work, and reduced the reliability of cylinder body, be easy to occur Sealing gas leakage; Cause the damage of cylinder body, working life is short, brings bigger maintenance load for the maintenance man in parking lot; Also bring bigger recruitment input, make that enterprise's user cost is higher to enterprise.
In sum, the aerial charging lift cylinder control accuracy of existing technology is low, impulsive load is big, working life is short and user cost is high.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind ofly improve the charging operations Security, improve control accuracy, no impulsive load, the passenger vehicle that prolongs cylinder working life and reduction enterprise user cost are charged cylinder in the air.
For realizing that the technological scheme that the object of the invention adopts is: a kind of passenger vehicle cylinder that charges in the air; Comprise one-level cylinder body and piston rod; And be arranged on the big piston in the one-level cylinder body; Big piston is connected with the motive sealing of one-level cylinder body, and big piston is divided into rising atmospheric pressure cavity and big piston push chamber with the inner chamber of one-level cylinder body, and the rising atmospheric pressure cavity is communicated with the rising suction tude that is fixed on first-stage cylinder body case bottom; In the big piston push chamber, be provided with the secondary cylinder body that is fixed as one with big piston; The secondary cylinder body is connected with the motive sealing of one-level cylinder body; Be provided with small piston in the inner chamber of secondary cylinder body; Small piston is connected with the motive sealing of secondary cylinder body, and piston rod one end is fixed on the small piston, and the piston rod the other end stretches out the secondary cylinder body; Wherein: said big piston push chamber is communicated with the decline suction tude that is fixed on first-stage cylinder body case top; Said small piston is divided into small piston push chamber and decline atmospheric pressure cavity with the inner chamber of secondary cylinder body; The intercommunicating pore that the casing wall of said secondary cylinder body makes the decline atmospheric pressure cavity be communicated with the big piston push chamber when being provided with and descending with the secondary cylinder body.Said piston rod is connected through preceding plug for seal with the port of secondary cylinder body.When needing piston rod to rise, inject high pressure air by the rising suction tude, high pressure air promotes to move on the big piston after getting into the rising atmospheric pressure cavity, and big piston promotes the secondary cylinder body, and the secondary cylinder body drives on the piston rod and moves, and realizes the lifting of piston rod to load.When needing the decline piston rod; Inject high pressure air by the decline suction tude, high pressure air at first gets into the big piston push chamber and promotes big piston and move down and reset, and the big piston 6 back high pressure air that resets gets into the decline atmospheric pressure cavity by the big piston push chamber; Promote small piston then and drive piston rod and move down and reset, realize descending.
In the foregoing description, for reaching the purpose that piston rod slowly advances, in the said big piston push chamber, be formed with negative cavity between secondary cylinder body and the one-level cylinder body, negative cavity is communicated with the decline suction tude.
It all is to adopt the O RunddichtringO to realize that sealing connects, and specifically adopts oil plant to use the O RunddichtringO that the motive sealing of said structure connects.
Because said structure, the present invention has not only improved the charging operations Security, has improved control accuracy, no impulsive load, prolong cylinder working life and reduction enterprise user cost.
Description of drawings
Device of the present invention can further specify through the indefiniteness embodiment that accompanying drawing provides.
Accompanying drawing 1 is top perspective structural representation of the present invention.
Among the figure: 1, base plate; 2, stop up; 3, one-level cylinder body; 4, nut a; 5, O RunddichtringO a; 6, big piston; 7, big cushion collar; 8, nut b; 9, backing plate; 10, O RunddichtringO b; 11, small piston; 12, O RunddichtringO c; 13, minibuffer cover; 14, O RunddichtringO d; 15, O RunddichtringO e; 16, first-level buffer guide sleeve; 17, hole retaining; 18, secondary cylinder body; 19, level 2 buffering guide sleeve; 20, O RunddichtringO f; 21, preceding obstruction; 22, piston rod; 23, rising atmospheric pressure cavity; 24, big piston push chamber; 25, rising suction tude; 26, decline suction tude; 27, small piston push chamber; 28, decline atmospheric pressure cavity; 29, negative cavity; 30, via; 31, intercommunicating pore.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Referring to accompanying drawing 1; Passenger vehicle in the accompanying drawing cylinder that charges in the air; Comprise one-level cylinder body 3 and piston rod 22, and be arranged on the big piston 6 in the one-level cylinder body 3, adopt O RunddichtringO a5 realization motive sealing to be connected between big piston 6 and the one-level cylinder body 3; Big piston 6 is divided into rising atmospheric pressure cavity 23 and big piston push chamber 24 with the inner chamber of one-level cylinder body 3, and rising atmospheric pressure cavity 23 is communicated with the rising suction tude 25 that is fixed on one-level cylinder body 3 outer casing underparts; In big piston push chamber 24, be provided with the secondary cylinder body 18 that is fixed as one with big piston 6; Secondary cylinder body 18 passes big piston 6 backs and is fixed as one through nut a4; Secondary cylinder body 18 realizes that through O RunddichtringO d14 motive sealing is connected with one-level cylinder body 3; Be provided with small piston 11 in the inner chamber of secondary cylinder body 18, small piston 11 adopts O RunddichtringO c12 to realize that motive sealing is connected with secondary cylinder body 18, and piston rod 22 1 ends are fixed on the small piston 11; Piston rod 22 passes small piston 11 backs and is fixed as one through nut b8, and piston rod 22 the other ends stretch out secondary cylinder body 18; Wherein: said big piston push chamber 24 is communicated with the decline suction tude 26 that is fixed on one-level cylinder body 3 shell upper; Said small piston 11 is divided into small piston push chamber 27 and decline atmospheric pressure cavity 28 with the inner chamber of secondary cylinder body 18, and decline atmospheric pressure cavity 28 is communicated with decline suction tude 26; The intercommunicating pore that the casing wall of said secondary cylinder body makes the decline atmospheric pressure cavity be communicated with the big piston push chamber when being provided with and descending with the secondary cylinder body; Said piston rod 22 is tightly connected through preceding obstruction 21 with the port of secondary cylinder body 18; Through rising suction tude 25 is injected high-pressure air source, high-pressure air source gets into rising atmospheric pressure cavity 23 backs and promotes to move on the big piston 6, and big piston 6 promotes secondary cylinder body 18, and secondary cylinder body 18 drives on the piston rod 22 and moves, and realizes the lifting to load; Need to descend is through decline suction tude 26 is injected high-pressure air source; High-pressure air source entering big piston push chamber 24 back promotion big pistons 6 move down and reset; The big piston 6 back high-pressure air source that resets gets into decline atmospheric pressure cavity 28, promotes small piston 11 then and drives piston rods 22 and move down and reset, and realizes descending.Because this structure is in use, during 25 air inlets of rising suction tude, the 26 not air inlets of decline suction tude; Can effectively promote load and rise, particularly can effectively promote to move on the electroplax space charge position, after charging is accomplished; Need reset is through decline suction tude 26 being injected high-pressure air source, force the high-pressure air source in the rising atmospheric pressure cavity 23 to reflux, reaching big piston 6 and reset with piston rod 22; And not to accomplish moment; Whole resetting is slow completion, can not make a noise, and reduced cylinder body because the damage that resets and cause.Simultaneously, reach the lifting distance of effective control load, also just improved control accuracy, reduced the process of artificial participation charging.
Realize between piston rod 22 and the electroplax for effective, and each parts does not have impulsive load in the cylinder, in the said big piston push chamber 24 of the foregoing description, is formed with negative cavity 29 between secondary cylinder body 18 and the one-level cylinder body 3, negative cavity 29 is communicated with decline suction tude 26.Its concrete working procedure is---on big piston 6, move past in the journey; Negative cavity 29 seals; Because big piston 6 moves under the high-pressure air source effect; Form the suction function power opposite in the negative cavity 29 of feasible sealing, make piston rod 22 and electroplax prolong time of contact, also just reached no impulsive load with big piston 6 movement directions.
In the said structure: in the said big piston push chamber 24, outside secondary cylinder body 18 and big piston 6 joints, be arranged with big cushion collar 7, the big cushion collar 7 outer first-level buffer guide sleeves 16 that are arranged with.Said big buffer-oriented cover 16 has the via 30 that big piston push chamber 24 is communicated with negative cavity 29.Said big cushion collar 7 adopts O RunddichtringO b10 to realize that motive sealing is connected with first-level buffer guide sleeve 16; All adopt motive sealing to be connected between first-level buffer guide sleeve 16 and one-level cylinder body 3 and the secondary cylinder body 18; Wherein adopting O RunddichtringO d14 to realize that motive sealing is connected between first-level buffer guide sleeve 16 and the one-level cylinder body 3, also is that employing O RunddichtringO realization motive sealing is connected between first-level buffer guide sleeve 16 and the secondary cylinder body 18.The setting of this big cushion collar 7 is effectively to reduce impulsive load in the motion of cylinder interior part, and 16 pairs of big cushion collars 7 of first-level buffer guide sleeve lead.
In the said structure: in the said decline atmospheric pressure cavity 28, outside piston rod 22 and small piston 11 joints, be arranged with minibuffer cover 13, the minibuffer cover 13 outer level 2 buffering guide sleeves 19 that are arranged with.Adopt O RunddichtringO e15 realization motive sealing to be connected between said minibuffer cover 13 and the level 2 buffering guide sleeve 19; All adopt motive sealing to be connected between level 2 buffering guide sleeve 19 and secondary cylinder body 18 and the piston rod 22; Adopt O RunddichtringO f20 to realize that motive sealing is connected between level 2 buffering guide sleeve 19 and the secondary cylinder body 18, also adopt O RunddichtringO realization motive sealing between level 2 buffering guide sleeve 19 and the piston rod 22.Have on the said level 2 buffering guide sleeve 19 with secondary cylinder body 18 casing walls on the corresponding perforate of intercommunicating pore 31.Realize resetting of piston rod 22 with this.
In the foregoing description: the bottom of said one-level cylinder body 3 is fixed on the base plate 1, is provided with in one-level cylinder body 3 inner chambers of base plate 1 and one-level cylinder body 3 joints and stops up 2.Porose retaining 17 is set between the top exit place of said one-level cylinder body 3 and the secondary cylinder body 18.Hole retaining 17 adopts spring collar, and it is located the first-level buffer guide sleeve.
In the said structure, secondary cylinder body 18 is not limited to through nut a4 with big piston 6 and is fixed as one, and also can be fixed as one through modes such as welding; Piston rod 22 is not limited to through nut b8 with small piston 11 and is fixed as one, and also can be fixed as one through modes such as welding, wherein, when piston rod 22 is fixed as one through nut b8 with small piston 11, also is provided with backing plate 9 between nut b8 and the small piston 11.
The working procedure of said structure is---high-pressure air source and rising suction tude 25 to be connected, high-pressure air source gets into rising atmospheric pressure cavity 23 backs and promotes to move on the big piston 6, and big piston 6 promotes to move on the secondary cylinder body 18; Be formed with negative cavity 29 between secondary cylinder body 18 and the one-level cylinder body 3; Negative cavity 29 is a sealing state, makes to produce the suction function power opposite with big piston 6 movement directions in the negative cavity 29, make move on the secondary cylinder body 18 slow; There is not impulsive load simultaneously; Promote to move on small piston 11 and piston rod 22 one in it by secondary cylinder body 18 again, promote to move in electroplaxs or the load by piston rod 22 at last, realized that electroplax or load are not had impulsive load rises; When needs descended to electroplax or load, through decline suction tude 26 is injected high-pressure air source, high-pressure air source got into negative cavity 29; Get into big piston push chamber 24 through via 30 then, the high-pressure air source of this moment promotes big piston 6 with regard to direction, makes big piston 6 drive secondary cylinder body 18 and resets together; In secondary cylinder body 18 reseting procedures; Decline atmospheric pressure cavity 28 in the secondary cylinder body 18 makes high-pressure air source get into decline atmospheric pressure cavity 28 through intercommunicating pore 31 and decline suction tude 26 conducting gradually, promotes small piston 11 then and moves down; Small piston 11 drives piston rod 22 clothes and resets, and has also just realized the control to electroplax or load decline.
In sum, this structure has not only improved the charging operations Security, has improved control accuracy, no impulsive load, prolonged cylinder working life and reduced enterprise's user cost.
Claims (10)
1. passenger vehicle cylinder that charges in the air; Comprise one-level cylinder body (3) and piston rod (22); And be arranged on the big piston (6) in the one-level cylinder body (3); Big piston (6) is connected with one-level cylinder body (3) motive sealing, and big piston (6) is divided into rising atmospheric pressure cavity (23) and big piston push chamber (24) with the inner chamber of one-level cylinder body (3), and rising atmospheric pressure cavity (23) is communicated with the rising suction tude (25) that is fixed on one-level cylinder body (3) outer casing underpart; In big piston push chamber (24), be provided with the secondary cylinder body (18) that is fixed as one with big piston (6); Secondary cylinder body (18) is connected with one-level cylinder body (3) motive sealing; Be provided with small piston (11) in the inner chamber of secondary cylinder body (18); Small piston (11) is connected with secondary cylinder body (18) motive sealing, and piston rod (22) one ends are fixed on the small piston (11), and piston rod (22) the other end stretches out secondary cylinder body (18); It is characterized in that:
Said big piston push chamber (24) is communicated with the decline suction tude (26) that is fixed on one-level cylinder body (3) shell upper; Said small piston (11) is divided into small piston push chamber (27) and decline atmospheric pressure cavity (28) with the inner chamber of secondary cylinder body (18); The intercommunicating pore (31) that the casing wall of said secondary cylinder body (18) makes decline atmospheric pressure cavity (28) be communicated with big piston push chamber (24) when being provided with and descending with secondary cylinder body (18);
Said piston rod (22) is tightly connected through preceding obstruction (21) with the port of secondary cylinder body (18);
When needing piston rod (22) to rise; Inject high pressure air by rising suction tude (25); High pressure air gets into rising atmospheric pressure cavity (23) back and promotes to move on the big piston (6); Big piston (6) promotes secondary cylinder body (18), and secondary cylinder body (18) drives on the piston rod (22) and moves, and realizes the lifting of piston rod (22) to load;
When needing decline piston rod (22); Inject high pressure air by decline suction tude (26); High pressure air at first gets into big piston push chamber (24) and promotes big piston (6) and move down and reset; The big piston 6 back high pressure air that resets gets into decline atmospheric pressure cavity (28) by big piston push chamber (24), promotes small piston (11) then and drives piston rod (22) and move down and reset, and realizes descending.
2. the passenger vehicle according to claim 1 cylinder that charges in the air; It is characterized in that: in the said big piston push chamber (24); Be formed with negative cavity (29) between secondary cylinder body (18) and the one-level cylinder body (3), negative cavity (29) is communicated with decline suction tude (26).
3. the passenger vehicle according to claim 1 and 2 cylinder that charges in the air; It is characterized in that: in the said big piston push chamber (24); Outside secondary cylinder body (18) and big piston (6) joint, be arranged with big cushion collar (7), the outer first-level buffer guide sleeve (16) that is arranged with of big cushion collar (7).
4. the passenger vehicle according to claim 3 cylinder that charges in the air, it is characterized in that: said big buffer-oriented cover (16) has the via (30) that big piston push chamber (24) is communicated with negative cavity (29).
5. the passenger vehicle according to claim 3 cylinder that charges in the air; It is characterized in that: said big cushion collar (7) and first-level buffer guide sleeve (16) adopt motive sealing to be connected, and all adopt motive sealing to be connected between first-level buffer guide sleeve (16) and one-level cylinder body (3) and the secondary cylinder body (18).
6. the passenger vehicle according to claim 1 cylinder that charges in the air; It is characterized in that: in the said decline atmospheric pressure cavity (28); Outside piston rod (22) and small piston (11) joint, be arranged with minibuffer cover (13), the outer level 2 buffering guide sleeve (19) that is arranged with of minibuffer cover (13).
7. the passenger vehicle according to claim 6 cylinder that charges in the air; It is characterized in that: said minibuffer cover (13) and level 2 buffering guide sleeve (19) adopt motive sealing to be connected, and all adopt motive sealing to be connected between level 2 buffering guide sleeve (19) and secondary cylinder body (18) and the piston rod (22).
8. the passenger vehicle according to claim 6 cylinder that charges in the air is characterized in that: have on the said level 2 buffering guide sleeve (19) with secondary cylinder body (18) casing wall on the corresponding perforate of intercommunicating pore (31).
9. the passenger vehicle according to claim 1 cylinder that charges in the air, it is characterized in that: the bottom of said one-level cylinder body (3) is fixed on the base plate (1), is provided with obstruction (2) in one-level cylinder body (3) inner chamber of base plate (1) and one-level cylinder body (3) joint.
10. according to claim 1, one of the 2 or 9 described passenger vehicles cylinder that charges in the air, it is characterized in that: between the top exit place of said one-level cylinder body (3) and the secondary cylinder body (18) porose retaining (17) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160032.9A CN102661300B (en) | 2012-05-22 | 2012-05-22 | Passenger vehicle charges cylinder in the air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160032.9A CN102661300B (en) | 2012-05-22 | 2012-05-22 | Passenger vehicle charges cylinder in the air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102661300A true CN102661300A (en) | 2012-09-12 |
| CN102661300B CN102661300B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210160032.9A Active CN102661300B (en) | 2012-05-22 | 2012-05-22 | Passenger vehicle charges cylinder in the air |
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| Country | Link |
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| CN (1) | CN102661300B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927081A (en) * | 2012-12-07 | 2013-02-13 | 向光 | Overhead-charged four-grade cylinder of passenger car |
| CN108049681A (en) * | 2017-12-18 | 2018-05-18 | 重庆家本家科技有限公司 | Electric vehicle jiffy stand |
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| JPS57179405A (en) * | 1981-04-28 | 1982-11-05 | Koganei Seisakusho:Kk | Pneumatic cylinder |
| EP0903501A2 (en) * | 1997-09-23 | 1999-03-24 | Luciano Migliori | One-side fed, double-acting, pneumatic actuators |
| CN201125903Y (en) * | 2007-12-06 | 2008-10-01 | 上海宏翔机械制造有限公司 | Telescopic air cylinder |
| CN101644286A (en) * | 2009-08-18 | 2010-02-10 | 石远钢 | Buffer type cylinder structure |
| CN201884360U (en) * | 2010-12-28 | 2011-06-29 | 中船重工中南装备有限责任公司 | Single-acting two-stage hydraulic cylinder |
| WO2011157462A1 (en) * | 2010-06-14 | 2011-12-22 | Sms Siemag Ag | Piston-cylinder unit in the form of a switchable stepped cylinder |
| CN202659618U (en) * | 2012-05-22 | 2013-01-09 | 向光 | Passenger car aerial charging cylinder |
-
2012
- 2012-05-22 CN CN201210160032.9A patent/CN102661300B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57179405A (en) * | 1981-04-28 | 1982-11-05 | Koganei Seisakusho:Kk | Pneumatic cylinder |
| EP0903501A2 (en) * | 1997-09-23 | 1999-03-24 | Luciano Migliori | One-side fed, double-acting, pneumatic actuators |
| CN201125903Y (en) * | 2007-12-06 | 2008-10-01 | 上海宏翔机械制造有限公司 | Telescopic air cylinder |
| CN101644286A (en) * | 2009-08-18 | 2010-02-10 | 石远钢 | Buffer type cylinder structure |
| WO2011157462A1 (en) * | 2010-06-14 | 2011-12-22 | Sms Siemag Ag | Piston-cylinder unit in the form of a switchable stepped cylinder |
| CN201884360U (en) * | 2010-12-28 | 2011-06-29 | 中船重工中南装备有限责任公司 | Single-acting two-stage hydraulic cylinder |
| CN202659618U (en) * | 2012-05-22 | 2013-01-09 | 向光 | Passenger car aerial charging cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927081A (en) * | 2012-12-07 | 2013-02-13 | 向光 | Overhead-charged four-grade cylinder of passenger car |
| CN108049681A (en) * | 2017-12-18 | 2018-05-18 | 重庆家本家科技有限公司 | Electric vehicle jiffy stand |
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| Publication number | Publication date |
|---|---|
| CN102661300B (en) | 2015-08-19 |
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Owner name: XIANG YU Effective date: 20131021 |
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Effective date of registration: 20131021 Address after: 400039 Chongqing Jiulongpo District of Shiqiaopu Jingwei road 1098 16 Building 2 unit 4-1 Applicant after: Xiang Guang Applicant after: Xiang Yu Address before: 400039 Chongqing Jiulongpo District of Shiqiaopu Jingwei road 1098 16 Building 2 unit 4-1 Applicant before: Xiang Guang |
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