CN210310717U - Foldable electric scooter - Google Patents
Foldable electric scooter Download PDFInfo
- Publication number
- CN210310717U CN210310717U CN201920659883.5U CN201920659883U CN210310717U CN 210310717 U CN210310717 U CN 210310717U CN 201920659883 U CN201920659883 U CN 201920659883U CN 210310717 U CN210310717 U CN 210310717U
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- China
- Prior art keywords
- pedal box
- telescopic rod
- inclined surface
- spring
- sliding groove
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Abstract
The utility model provides a folding electric vehicle, which comprises a front wheel, a pedal box, a battery, a rear wheel, a vertical rod, a connecting piece and a handle, the front wheel is pivoted at the lower part of the upright stanchion, one end of the connecting piece is provided with a sleeve which is sleeved on the upright stanchion, the handle is fixedly arranged at the upper part of the upright stanchion, the connecting piece is hinged at one end of the pedal box, the rear wheel is pivoted at the other end of the pedal box, the battery is arranged in the pedal box, the hub motor is arranged in the rear wheel, the battery is electrically connected with the hub motor, the auxiliary wheel assembly is further included, the auxiliary wheel assembly comprises two auxiliary wheels, an auxiliary shaft, a first supporting strip and a second supporting strip which are respectively positioned at two sides of the pedal box, the first supporting strip and the second supporting strip are respectively pivoted at two sides of the pedal box, the first supporting strip and the second supporting strip are respectively and fixedly connected with the auxiliary shaft, and the two auxiliary wheels are respectively pivoted at two ends of the auxiliary shaft; the utility model has the advantages of being convenient to push after folding.
Description
Technical Field
The utility model relates to an electric motor car technical field especially relates to a foldable electric scooter.
Background
The electric vehicle brings convenience to people going out, and many office workers choose to ride the foldable electric vehicle to take the subway, so that the foldable electric vehicle has the advantages that the size is small, the foldable electric vehicle can conveniently pass through a subway coin-feed gate, and the electric vehicle can be folded after the electric vehicle is on the subway, so that the space in the subway is saved; most of electric vehicles are folded backwards only by the upright posts, and how to continue to carry the electric vehicle to walk so as to go in and out of the subway becomes a problem after folding, so that young people with high strength can lift the whole electric vehicle up to go in and out of the subway, the electric vehicle is very strenuous, people with low strength can only stand the electric vehicle, the upright posts are stabilized by two hands, the rear wheels of the battery car are independently grounded to roll and advance, and the electric vehicle is very unstable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a folding electric motor car of being convenient for push away after folding to solve the problem that proposes in the background art.
In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
a foldable electric bicycle comprises a front wheel, a pedal box, a battery, a rear wheel, a vertical rod, a connecting piece and a handle, wherein the front wheel is pivoted at the lower part of the vertical rod, one end of the connecting piece is provided with a sleeve, the sleeve is sleeved on the vertical rod, the handle is fixedly arranged at the upper part of the vertical rod, the connecting piece is hinged at one end of the pedal box, the rear wheel is pivoted at the other end of the pedal box, the battery is arranged in the pedal box, a hub motor is arranged in the rear wheel, the battery is electrically connected with the hub motor, and the foldable electric bicycle further comprises an auxiliary wheel assembly, wherein the auxiliary wheel assembly comprises two auxiliary wheels, auxiliary shafts, a first supporting strip and a second supporting strip which are respectively positioned at two sides of the pedal box;
first stay strip and second support bar pin joint respectively in the both sides of pedal box, and first stay strip and second support bar respectively with supplementary axle fixed connection, two the auxiliary wheel pin joint respectively in the both ends of supplementary axle, offer the first draw-in groove that is used for blocking the handle on the first stay strip, offer the second draw-in groove that is used for blocking the handle on the second support bar.
The button is characterized by further comprising a buckle assembly, the buckle assembly comprises a square button, a pull rod, a first spring, a first inclined block, a second telescopic rod, a second spring, a second inclined block, a third telescopic rod, a third spring and a third inclined block, the button is hollow inside, a first sliding groove and a second sliding groove are symmetrically formed in two sides of the button respectively, inclined openings are formed in two sides, close to the first sliding groove, of the button, the lower end of each inclined opening is close to the second sliding groove, one end of the pull rod sequentially penetrates through the first sliding groove and the second sliding groove and is fixedly connected with the first inclined block, a clamping column is vertically and fixedly arranged on the pull rod between the first sliding groove and the second sliding groove, and the first spring is sleeved on the pull rod between the clamping column and the first sliding groove;
a first inclined plane and a second inclined plane are respectively arranged on two sides of the first inclined block close to the pull rod, the first inclined plane and the second inclined plane are symmetrically arranged, and the intersection line of the first inclined plane and the second inclined plane is positioned on one side of the first inclined block away from the pull rod;
the buckle assembly is arranged in the pedal box, the button penetrates through the upper end of the pedal box, a first hole is formed in the first supporting strip, a second hole is formed in the second supporting strip, the second telescopic rod and the third telescopic rod respectively penetrate through two sides of the pedal box, the second telescopic rod is matched with the first hole, and the third telescopic rod is matched with the second hole;
one end of the second telescopic rod is fixedly connected with the second inclined block, a third inclined surface is arranged on one side, away from the second telescopic rod, of the second inclined block, the third inclined surface is matched with the first inclined surface, the second spring is sleeved on the second telescopic rod, one end of the second spring abuts against the second inclined block, and the other end of the second spring abuts against the inner wall of the pedal box;
one end of the third telescopic rod is fixedly connected with the third inclined block, a fourth inclined plane is arranged on one side, away from the third telescopic rod, of the third inclined block, the fourth inclined plane is matched with the second inclined plane, the third telescopic rod is sleeved with the third spring, one end of the third spring abuts against the third inclined block, and the other end of the third spring abuts against the inner wall of the pedal box.
Furthermore, the lower end of the bevel connection is provided with an arc-shaped groove used for supporting the clamping column.
Further, the upper part of the pedal box is provided with a groove for clamping the auxiliary shaft.
Furthermore, one side of the first supporting strip, which is close to the pedal box, is provided with a fifth inclined surface which is beneficial for the second telescopic rod to slide into the first hole.
Furthermore, one side of the second support bar close to the pedal box is provided with a sixth inclined plane which is beneficial for the third telescopic rod to slide into the second hole.
Has the advantages that: 1. through setting up the auxiliary wheel subassembly, before folding the pole setting, lift the auxiliary shaft earlier, then folding the pole setting, make the handle card in first draw-in groove and second draw-in groove, make the handle be difficult for rocking, stand the electric motor car, make rear wheel and two auxiliary wheels land simultaneously, the weight of electric motor car self presses to the auxiliary wheel, make the auxiliary wheel subassembly open to one side, the handle supports in first draw-in groove and second draw-in groove simultaneously, offset the tension of auxiliary wheel subassembly, alright hold the pole setting this moment, light promotion electric motor car gos forward, compare with conventional technique, the utility model discloses be convenient for carry out after folding more. 2. Through setting up buckle subassembly, after making to open the auxiliary wheel subassembly, can fix first support bar at the first downthehole with the second telescopic link card, fix the second support bar with the third telescopic link card simultaneously in the second downthehole, make the electric motor car when folding back is carried out, the auxiliary wheel is difficult for rocking more.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the auxiliary wheel assembly of the present invention;
FIG. 3 is a schematic view of the construction of the present invention with the jockey wheel assembly set up;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is an enlarged view at B in FIG. 3;
fig. 6 is a schematic structural view of the utility model when the vertical rod is folded;
fig. 7 is a schematic structural view of the buckle assembly of the present invention;
fig. 8 is a schematic structural view of the buckle assembly according to the present invention when a button is pressed;
fig. 9 is a schematic view of a part of the structure of the buckle assembly of the present invention;
fig. 10 is a partial structural schematic view of the first and second support bars of the present invention;
fig. 11 is a schematic structural view of the folded rear wheel and the auxiliary wheel of the present invention when they are simultaneously grounded;
fig. 12 is a schematic view of the folded three-dimensional structure of the present invention.
The reference signs are:
the auxiliary wheel assembly 2, the auxiliary wheel 21, the auxiliary shaft 22, the first supporting strip 23, the first clamping groove 231, the first hole 232 and the fifth inclined plane 233;
the second supporting strip 24, the second clamping groove 241, the second hole 242, the sixth inclined plane 243;
the locking device comprises a locking component 3, a button 30, a first sliding groove 301, a second sliding groove 302, an oblique opening 303, an arc-shaped groove 304, a pull rod 31, a locking column 311, a first spring 32, a first oblique block 33, a first oblique surface 331, a second oblique surface 332, a second telescopic rod 34, a second spring 35, a second oblique block 36, a third oblique surface 361, a third telescopic rod 37, a third spring 38, a third oblique block 39 and a fourth oblique surface 391;
a groove 4.
Detailed Description
The invention is further explained below with reference to the drawings:
as shown in fig. 1 to 12, a foldable electric vehicle includes a front wheel 11, a pedal box 12, a battery, a rear wheel 14, an upright rod 15, a connecting member 16, a handle 17, an auxiliary wheel assembly 2 and a buckle assembly 3, wherein the front wheel 11 is pivoted at the lower part of the upright rod 15, one end of the connecting member 16 is provided with a sleeve, the sleeve is sleeved on the upright rod 15, the handle 17 is fixedly arranged at the upper part of the upright rod 15, the connecting member 16 is hinged at one end of the pedal box 12, and the structure of the connecting member 16 respectively connecting the upright rod 15 and the pedal box 12 belongs to the prior art, and detailed structure is not repeated; the rear wheel 14 is pivoted at the other end of the pedal box 12, the battery is arranged in the pedal box 12, a hub motor is arranged in the rear wheel 14, and a power device, a transmission device and a braking device are integrated into a hub by the hub motor, so that the mechanical part of the electric vehicle is greatly simplified, and the electric vehicle belongs to the prior art; the battery is electrically connected with the hub motor.
Referring to fig. 2 again, the auxiliary wheel assembly 2 includes two auxiliary wheels 21, two auxiliary shafts 22, two first supporting bars 23 and two second supporting bars 24 respectively located at two sides of the pedal box 12, the first supporting bars 23 and the second supporting bars 24 are respectively pivoted at two sides of the pedal box 12, the first supporting bars 23 and the second supporting bars 24 are respectively fixedly connected with the auxiliary shafts 22, the two auxiliary wheels 21 are respectively pivoted at two ends of the auxiliary shafts 22, a groove 4 for clamping the auxiliary shafts 22 is provided at an upper portion of the pedal box 12, when riding the utility model, the auxiliary shafts 22 are clamped in the groove 4, the two auxiliary wheels 21 are respectively located at two sides of the pedal box 12, and an upper end of the auxiliary wheel 21 is flush with an upper end of the pedal box 12, so that driving of a driver is not affected, the auxiliary shafts 22 are lifted upwards, and the two auxiliary wheels 21 can be lifted up at the same time; offer the first draw-in groove 231 that is used for blocking the handle 17 on the first support bar 23, offer the second draw-in groove 241 that is used for blocking the handle 17 on the second support bar 24, the effect of first draw-in groove 231 and second draw-in groove 241 lies in: when jockey wheel subassembly 2 upwards opens, and after pole setting 15 is folded backward, front wheel 11 rocks about easily, blocks handle 17 simultaneously in first draw-in groove 231 and second draw-in groove 241, can effectually stabilize pole setting 15 and front wheel 11, and on the other hand blocks simultaneously behind first draw-in groove 231 and second draw-in groove 241 at handle 17, can prevent jockey wheel subassembly 2 excessive right slip.
Referring to fig. 7 to 9 again, the buckle assembly 3 includes a square button 30, a pull rod 31, a first spring 32, a first oblique block 33, a second telescopic rod 34, a second spring 35, a second oblique block 36, a third telescopic rod 37, a third spring 38 and a third oblique block 39, the button 30 is provided with a first sliding slot 301 and a second sliding slot 302 at two sides thereof, respectively, and referring to fig. 6, in order to better understand the orientation relationship of the present embodiment, four orientations, i.e., front, back, left and right, are indicated in fig. 6, the first sliding slot 301 is located at the left side of the button 30, the second sliding slot 302 is located at the right side of the button 30, the button 30 is provided with oblique openings 303 at two sides thereof near the first sliding slot 301, i.e., the oblique openings 303 penetrate through the front side and the rear side of the button 30, and the lower end of the oblique openings 303 is close to the second sliding slot 302, one end of the pull rod 31 sequentially penetrates through the first sliding slot 301 and the second sliding slot 302 and is, namely, as shown in fig. 6, the first inclined block 33 is fixedly arranged at the right end of the pull rod 31; a clamping column 311 is vertically and fixedly arranged on the pull rod 31 between the first sliding chute 301 and the second sliding chute 302, a first spring 32 is sleeved on the pull rod 31 between the clamping column 311 and the first sliding chute 301, the left end of the first spring 32 abuts against the inner wall of the button 30, and the right end abuts against the clamping column 311; the lower extreme of bevel connection 303 is provided with the arc groove 304 that is used for holding card post 311, and arc groove 304 can effectually prevent card post 311 from carrying out the rotation.
A first inclined surface 331 and a second inclined surface 332 are respectively arranged on two sides of the first inclined block 33 close to the pull rod 31, that is, as shown in fig. 6, a first inclined surface 331 is arranged on the front side of the first inclined block 33, a second inclined surface 332 is arranged on the rear side of the first inclined block 33, the first inclined surface 331 and the second inclined surface 332 are symmetrically arranged, and the intersection line of the first inclined surface 331 and the second inclined surface 332 is located on one side of the first inclined block 33 far from the pull rod 31.
The buckle assembly 3 is disposed in the pedal box 12, the button 30 passes through the upper end of the pedal box 12, the first supporting bar 23 is provided with a first hole 232, the second supporting bar 24 is provided with a second hole 242, the second telescopic rod 34 and the third telescopic rod 37 respectively pass through two sides of the pedal box 12, one side of the first supporting bar 23 close to the pedal box 12 is provided with a fifth inclined surface 233 facilitating the second telescopic rod 34 to slide into the first hole 232, one side of the second supporting bar 24 close to the pedal box 12 is provided with a sixth inclined surface 243 facilitating the third telescopic rod 37 to slide into the second hole 242, the second telescopic rod 34 is matched with the first hole 232, and the third telescopic rod 37 is matched with the second hole 242, that is, as shown in fig. 6, the second telescopic rod 34 and the third telescopic rod 37, the front end of the second telescopic rod 34 can penetrate into or retract out of the first hole 232, and the rear end of the third telescopic rod 37 can penetrate into or retract out of the second hole 242.
One end of the second telescopic rod 34 is fixedly connected with the second sloping block 36, one side of the second sloping block 36, which is far away from the second telescopic rod 34, is provided with a third sloping surface 361, and the third sloping surface 361 and the first sloping surface 331 are matched with each other, that is, as shown in fig. 6, as the first sloping block 33 moves leftwards, the second sloping block 36 can move backwards through the matching of the third sloping surface 361 and the first sloping surface 331, and as the first sloping block 33 moves rightwards, the second sloping block 36 can move forwards through the matching of the third sloping surface 361 and the first sloping surface 331; the second spring 35 is sleeved on the second telescopic rod 34, one end of the second spring 35 abuts against the second inclined block 36, and the other end abuts against the inner wall of the pedal box 12;
one end of the third telescopic rod 37 is fixedly connected with the third inclined block 39, a fourth inclined surface 391 is arranged on the side of the third inclined block 39 away from the third telescopic rod 37, and the fourth inclined surface 391 and the second inclined surface 332 are matched with each other, that is, as shown in fig. 6, along with the left movement of the first inclined block 33, the third inclined block 39 can move forward through the matching of the fourth inclined surface 391 and the second inclined surface 332, and along with the right movement of the first inclined block 33, the third inclined block 39 can move backward through the matching of the fourth inclined surface 391 and the second inclined surface 332; the third spring 38 is sleeved on the third telescopic rod 37, and one end of the third spring 38 abuts against the third inclined block 39, and the other end abuts against the inner wall of the pedal box 12.
The working principle is as follows: referring to fig. 6 and 7 again, when the auxiliary wheel assembly 2 needs to be used, the button 30 is pressed downward, the first spring 32 is compressed, the inclined opening 303 on the button 30 presses the locking column 311 downward, so that the pull rod 31 is gradually positioned on the upper portions of the first sliding groove 301 and the second sliding groove 302, and meanwhile, the locking column 311 is forced to drive the pull rod 31 to move leftward, so that the first inclined block 33 moves leftward; the second sloping block 36 moves backwards under the tension of the second spring 35, and then drives the second telescopic rod 34 to move backwards, so that the front end of the second telescopic rod 34 retracts into the pedal box 12, and meanwhile, the third sloping block 39 moves forwards under the tension of the third spring 38, and then drives the third telescopic rod 37 to move forwards, so that the rear end of the third telescopic rod 37 retracts into the pedal box 12; the auxiliary shaft 22 is lifted upwards and moved rightwards, so that the first hole 232 on the first supporting bar 23 is located at the front end of the second telescopic rod 34, the second hole 242 on the second supporting bar 24 is located at the rear end of the third telescopic rod 37, the button 30 is loosened, the first spring 32 is opened and pushes the clamping column 311 to move rightwards, the pull rod 31 and the first inclined block 33 are driven to move rightwards, the second inclined block 36 is pushed forwards by the first inclined block 33, the front end of the second telescopic rod 34 is driven to be inserted into the first hole 232, the third inclined block 39 is pushed backwards by the first inclined block 33, the rear end of the third telescopic rod 37 is driven to be inserted into the second hole 242, the auxiliary wheel assembly 2 is fixed and does not shake, the vertical rod 15 can be folded at the moment, the utility model is erected, the rear wheel 14 and the two auxiliary wheels 21 land at the same time, and the utility model is pushed to walk;
when the auxiliary wheel assembly 2 is folded, the vertical rod 15 is erected, please refer to fig. 6 and 7 again, the button 30 is pressed downwards, the first sloping block 33 is pulled by the pull rod 31 to move to the left, the second sloping block 36 moves backwards under the tension of the second spring 35, and then the second telescopic rod 34 is driven to move backwards, so that the front end of the second telescopic rod 34 is retracted into the pedal box 12, meanwhile, the third sloping block 39 moves forwards under the tension of the third spring 38, and then the third telescopic rod 37 is driven to move forwards, so that the rear end of the third telescopic rod 37 is retracted into the pedal box 12, at this moment, the auxiliary shaft 22 can be pushed into the groove 4, the button 30 is loosened, and a rider can ride the bicycle.
The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a foldable electric scooter, includes front wheel (11), pedal box (12), battery, rear wheel (14), pole setting (15), connecting piece (16) and handle (17), front wheel (11) pin joint is in the lower part of pole setting (15), the one end of connecting piece (16) is equipped with the sleeve, pole setting (15) are located to the muffjoint, the fixed upper portion that sets up in pole setting (15) of handle (17), connecting piece (16) articulate the one end at pedal box (12), the other end at pedal box (12) of rear wheel (14) pin joint, the battery sets up in pedal box (12), be equipped with wheel resolute motor in rear wheel (14), battery and in-wheel motor electric connection, its characterized in that: the pedal box is characterized by further comprising an auxiliary wheel assembly (2), wherein the auxiliary wheel assembly (2) comprises two auxiliary wheels (21), an auxiliary shaft (22), a first supporting strip (23) and a second supporting strip (24), which are respectively positioned on two sides of the pedal box (12);
first support strip (23) and second support strip (24) pin joint respectively in the both sides of pedal box (12), and first support strip (23) and second support strip (24) respectively with supplementary axle (22) fixed connection, two auxiliary wheel (21) pin joint respectively in the both ends of supplementary axle (22), offer first draw-in groove (231) that are used for blocking handle (17) on first support strip (23), offer second draw-in groove (241) that are used for blocking handle (17) on second support strip (24).
2. The foldable electric vehicle as recited in claim 1, wherein: the buckle assembly (3) comprises a square button (30), a pull rod (31), a first spring (32), a first inclined block (33), a second telescopic rod (34), a second spring (35), a second inclined block (36), a third telescopic rod (37), a third spring (38) and a third inclined block (39), wherein the button (3) is hollow inside, a first sliding groove (301) and a second sliding groove (302) are respectively and symmetrically arranged on two sides of the button (30), an inclined opening (303) is formed in two sides, close to the first sliding groove (301), of the button (30), the lower end of the inclined opening (303) is close to the second sliding groove (302), one end of the pull rod (31) sequentially penetrates through the first sliding groove (301) and the second sliding groove (302) and is fixedly connected with the first inclined block (33), a clamping column (311) is vertically and fixedly arranged on the pull rod (31) between the first sliding groove (301) and the second sliding groove (302), the first spring (32) is sleeved on the pull rod (31) between the clamping column (311) and the first sliding groove (301);
a first inclined surface (331) and a second inclined surface (332) are respectively arranged on two sides of the first inclined block (33) close to the pull rod (31), the first inclined surface (331) and the second inclined surface (332) are symmetrically arranged, and the intersection line of the first inclined surface (331) and the second inclined surface (332) is positioned on one side of the first inclined block (33) far away from the pull rod (31);
the buckle assembly (3) is arranged in the pedal box (12), the button (30) penetrates through the upper end of the pedal box (12), the first supporting bar (23) is provided with a first hole (232), the second supporting bar (24) is provided with a second hole (242), the second telescopic rod (34) and the third telescopic rod (37) penetrate through two sides of the pedal box (12) respectively, the second telescopic rod (34) is matched with the first hole (232), and the third telescopic rod (37) is matched with the second hole (242);
one end of the second telescopic rod (34) is fixedly connected with the second inclined block (36), one side, far away from the second telescopic rod (34), of the second inclined block (36) is provided with a third inclined surface (361), the third inclined surface (361) is matched with the first inclined surface (331), the second telescopic rod (34) is sleeved with the second spring (35), one end of the second spring (35) abuts against the second inclined block (36), and the other end of the second spring abuts against the inner wall of the pedal box (12);
one end of the third telescopic rod (37) is fixedly connected with the third inclined block (39), a fourth inclined surface (391) is arranged on one side, away from the third telescopic rod (37), of the third inclined block (39), the fourth inclined surface (391) is matched with the second inclined surface (332), the third telescopic rod (37) is sleeved with the third spring (38), one end of the third spring (38) abuts against the third inclined block (39), and the other end of the third spring abuts against the inner wall of the pedal box (12).
3. A foldable electric vehicle according to claim 2, characterized in that: the lower end of the bevel opening (303) is provided with an arc-shaped groove (304) used for supporting the clamping column (311).
4. The foldable electric vehicle as recited in claim 1, wherein: the upper part of the pedal box (12) is provided with a groove (4) for clamping the auxiliary shaft (22).
5. The foldable electric vehicle as recited in claim 1, wherein: the side of the first supporting bar (23) close to the pedal box (12) is provided with a fifth inclined surface (233) which is beneficial for the second telescopic bar (34) to slide into the first hole (232).
6. The foldable electric vehicle as recited in claim 1, wherein: a sixth inclined surface (243) which is beneficial for the third telescopic rod (37) to slide into the second hole (242) is arranged at one side of the second supporting bar (24) close to the pedal box (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920659883.5U CN210310717U (en) | 2019-05-09 | 2019-05-09 | Foldable electric scooter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920659883.5U CN210310717U (en) | 2019-05-09 | 2019-05-09 | Foldable electric scooter |
Publications (1)
Publication Number | Publication Date |
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CN210310717U true CN210310717U (en) | 2020-04-14 |
Family
ID=70137937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201920659883.5U Expired - Fee Related CN210310717U (en) | 2019-05-09 | 2019-05-09 | Foldable electric scooter |
Country Status (1)
Country | Link |
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CN (1) | CN210310717U (en) |
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2019
- 2019-05-09 CN CN201920659883.5U patent/CN210310717U/en not_active Expired - Fee Related
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200414 |