TWM538482U - Electric telescopic folding bike - Google Patents

Description

Electric telescopic folding bicycle

The present invention relates to an electric telescopic folding bicycle, and more particularly to a vehicle structure.

In recent years, the energy shortage, the bicycle is blessed with its advantages of cheap, light, pollution-free and noise-free, and once again won the favor of people, coupled with its concept of environmental protection and return to nature, upholding the culture of urban life, responding to global energy reduction The carbon tide, riding a bicycle has become an elegant and fashionable sport, with slow response, environmental protection and simplicity. The cycling trend may bring a fresh look to the world.

The development of bicycles has a long history. Due to different user needs, many different types have been developed, such as electric bicycles, which use electric motors as power to save physical strength without causing environmental pollution problems, especially on uphill. It is more effective and can increase the speed of the bicycle.

At the same time, in order to facilitate carrying, there is a manufacturer who combines the folding machine with the electric bicycle to make it convenient for consumers to use. The folding volume is light and compact, and it has the flexibility of storage and convenience, so it is widely loved by the public.

However, the conventional folding electric bicycle has a low structural strength, and the storage procedure is quite complicated. When the folded joint is used, it is easy to pinch the hand and cause injury. In addition, the folded joint is easily slack and damaged under long-term bending, which often causes inconvenience.

In view of this, how to provide a safe and easy to store, high structural strength The telescopic folding bicycle has become the object of the present invention for improvement.

The object of the present invention is to provide an electric telescopic folding bicycle that can be easily stored and applied without being reduced in structure due to folding, and can be safely and safely used.

In order to solve the above problems and achieve the object of the present invention, the technical means of the present invention is realized as an electric telescopic folding bicycle, characterized in that it comprises: a front frame (1) including a front tube (11) a folding unit (12) disposed at a bottom end of the head tube (11), a front tube (13) disposed at a bottom end of the folding unit (12), and a rotatable shape passing through the front tube (13) a front fork (14) connected to the bottom end of the folding unit (12), a handlebar (15) laterally disposed at a top end of the front head tube (11), and a rotatably disposed at the bottom of the front fork (14) a front wheel (16) of the end; a rear frame (2) comprising a saddle tube (21) spaced apart from the rear side of the head tube (11) and a saddle disposed at the top end of the saddle tube (21) 22) a base (23) disposed at a bottom end of the saddle tube (21), a rear upper fork (24) connected at one end to a rear end of the saddle tube (21), and one end and a rear side of the base (23) a rear lower fork (25) connected to the rear upper fork (23) at the other end, and a rear wheel provided in a rotatable manner at the joint of the rear upper fork (24) and the rear lower fork (25) ( 26); a telescopic upper tube portion (3), which is perpendicular to the surface Provided at an oblique angle, and includes a front fixing portion (31) disposed at a rear side of the front tube (13), a front side of the saddle tube (21), and a free end corresponding to the front fixing portion ( 31) a rear fixing portion (32), a telescopic rod body group (33) movably disposed in the rear fixing portion (32) and connected at the other end to the front fixing portion (31), and sequentially disposed on a front clamping member (34) and a rear clamping member (35) at the free end of the rear fixing portion (32); and a lower tube (4), one end of which is fixed to the bottom side of the front end of the rear fixing portion (32) The other end is fixed to the top side of the front end of the base (23); and a power portion (5) includes a housing (51) disposed at the bottom surface and a housing (51) disposed outside the housing (51) a pedal device (52), an electric device (53) disposed in the casing (51), a transmission unit (54) disposed at the outer side of the casing (51) and connected to the rear wheel (26) at one end a power source (55) disposed on the rear upper fork (24), and a power supply (55) disposed on the handlebar (15) and respectively associated with the electric device (53) A control device (56) electrically connected to the power source (55), the transmission unit (54) enabling the pedal device (52) and the electric device (53) to drive the rear wheel (26) to rotate.

More preferably, the telescopic rod body set (33) further includes a first rod body (331) which is arranged in parallel from top to bottom and can be slid in the rear fixing portion (32). , a central piece (332), and a second rod (333), the central piece (332) can be coupled to the front clamping member (34) and the rear clamping member (35) for control The amount of expansion and contraction of the telescopic rod body set (33).

More preferably, the transmission unit (54) is one of the following: a chain, a belt.

More preferably, the first rod body (331) and the second rod body (333) are located at one end of the rear fixing portion (32), and each of them is further provided with a vibration reducing function to enable the The first rod body (331) and the second rod body (333) are smoothly slidable for the displacement of the cushion body (36).

More preferably, the central sheet body (332) has one side fixed to the first rod body (331) and the other side fixed to the second rod body (333), and the central sheet body (the central sheet body ( a guiding groove (3321) is respectively disposed at two sides of the center of the 332); the front clamping member (34) and the rear clamping member (35), both of which further include a guiding groove (3321) a T-shaped block (A), a locking member (B) disposed on one side of the rear fixing portion (32) and screwed to the T-shaped block (A), and an active member disposed on the locking member (B) a rotating handle (C) capable of rotating it; the front clamping member (34) and the rear clamping member (35), both of which can be disposed in one of the following manners: 32) The same side is adjacent and disposed at different sides of the rear fixing portion (32) and is staggered.

More preferably, the folding unit (12) further includes a base (121) that is sleeved with the front tube (13); a common configuration with the head tube (11) and corresponding to The base (121) is pivotally connected to the base (121) to allow the head tube (11) to be folded toward the front wheel (16); a mirror corresponding to the base a pivotal connection between the seat (121) and the pivoting seat (122), a buckle (123) pivoted on a corresponding side of the pivoting seat (122); a mirror corresponding to the base (121) and the pivoting Seat (122) pivot a wrench portion (124) pivotally coupled to the corresponding side of the base (121) for engaging with the buckle (123) for controlling pivoting of the pivoting seat (122); and a movable sleeve Provided on the head pipe (11), corresponding to the wrench portion (124), a safety buckle (125) for restricting the opening or closing of the wrench portion (124) can be provided.

More preferably, the buckle (123) further includes a rotating column (1231) horizontally disposed on a side of the pivoting seat (122), and a card disposed perpendicular to the rotating column (1231) a buckle (1232), and a set of limit springs (1233) disposed on one side of the rotating column (1231) and capable of limiting the amount of rotation of the rotating column (1231); the wrench portion (124) corresponding to the A positioning recess (1241) engageable with the latching head (1232) is further recessed at the latching head (1232), and a positioning slot (1242) is further disposed corresponding to the securing retaining ring (125). The safety buckle (125) corresponds to the positioning groove (1242), and an L-shaped block (1251) corresponding to the positioning groove (1242) is protruded.

More preferably, the control device (56) further includes a main unit (561) provided on the handlebar (15), having a display unit (5611) and electrically connected to the electric device (53); And a shifting device (562) disposed at one end of the handlebar (15) and electrically connected to the electric device (53).

Compared with the prior art, the effects of the present invention are as follows:

First point: In the present invention, an electric expansion and contraction is provided by the cooperation of the front frame (1), the rear frame (2), the telescopic upper tube portion (3), the lower tube (4), and the power portion (5). Folding bicycle, the front frame (1) can be folded and stored, and the telescopic upper tube portion (3) is more resistant to vertical stress. Under the driving of the power part (5), not only the anti-vibration effect is better, but also With a heavier weight, the overall impact resistance is also better, it is not easy to be deformed, and it is safe and undoubted. It achieves the goal of being safe and easy to store and has high structural strength.

Second point: In the present invention, a folding unit (12) composed of a base (121), a pivoting seat (122), a buckle (123), a wrench portion (124) and a safety buckle (125) is used. Not only is it convenient, but it also adds a slow-opening and safety function, and it does not cause pinching problems in use, and it can be used safely and safely.

The third point: in the present invention, the response of the front clamping member (34) and the rear clamping member (35) In addition to being easy to apply, it can also reduce the cost and processing procedure, so that the telescopic rod body group (33) is not easy to loosen and slide, and when there is a large bump, there is no problem, and the safety of the consumer is guaranteed.

1‧‧‧ front frame

11‧‧‧ head tube

12‧‧‧Folding unit

121‧‧‧Base

122‧‧‧ pivot seat

123‧‧‧ buckle

1231‧‧‧Rotary column

1232‧‧‧ buckle head

1233‧‧‧Limited spring

124‧‧‧Wrench department

1241‧‧‧Locating pocket

1242‧‧‧ positioning slot

125‧‧‧Safety buckle

1251‧‧‧L-shaped block

13‧‧‧Before the tube

14‧‧‧ Front fork

15‧‧‧Car handle

16‧‧‧ front wheel

2‧‧‧ rear frame

21‧‧‧ Saddle tube

22‧‧‧ Saddle

23‧‧‧Base

24‧‧‧Back fork

25‧‧‧ rear fork

26‧‧‧ Rear wheel

3‧‧‧ Telescopic upper tube

31‧‧‧Pre-fixed department

331‧‧‧First body

332‧‧‧Central sheet

3321‧‧‧ Guide slot

333‧‧‧Second body

32‧‧‧After the fixed department

33‧‧‧ Telescopic rod body

34‧‧‧Front clamps

35‧‧‧ rear clamping parts

36‧‧‧Upholstered body

4‧‧‧Under the tube

5‧‧‧Power Department

51‧‧‧Shell

52‧‧‧foot device

53‧‧‧Electrical device

54‧‧‧Transmission unit

55‧‧‧Power supply

56‧‧‧Control device

561‧‧‧Host

5611‧‧‧Display unit

562‧‧‧Transmission device

A‧‧‧T-block

B‧‧‧Locking parts

C‧‧‧Rotary handle

Figure 1: A perspective view of the novel.

Figure 2: An exploded view of the novel.

Fig. 3 is an exploded perspective view of the upper and lower telescopic tube portion in Fig. 2.

Figure 4: Schematic diagram of the implementation of the new telescopic adjustment.

Figure 5: Schematic diagram of the implementation of the novel folding storage.

The following is a detailed description of the following embodiments according to the drawings:

As shown in FIG. 1 and FIG. 2, the figure discloses an electric telescopic folding bicycle, characterized in that it comprises: a front frame (1) including a head tube (11), and a a folding unit (12) at a bottom end of the front tube (11), a front tube (13) disposed at a bottom end of the folding unit (12), and a folding unit (12) in a rotatable manner after passing through the front tube (13) a front fork (14) connected at the bottom end, a handlebar (15) laterally disposed at a top end of the head pipe (11), and a front wheel (16) rotatably disposed at a bottom end of the front fork (14); a rear frame (2) comprising a saddle tube (21) spaced apart from a rear side of the head tube (11), a saddle (22) disposed at a top end of the saddle tube (21), and a a base (23) at the bottom end of the saddle tube (21), a rear upper fork (24) connected at one end to the rear end of the saddle tube (21), one end connected to the rear side of the base (23), and the other end a rear lower fork (25) connected to the rear upper fork (23), a rear wheel (26) rotatably disposed at a joint of the rear upper fork (24) and the rear lower fork (25); a tube portion (3) disposed at an oblique angle to the vertical surface and including a a front fixing portion (31) at a rear side of the front tube (13), a rear fixing portion (32) provided at a front side of the saddle tube (21) and a free end corresponding to the front fixing portion (31), an activity Provided in the rear fixing portion (32) and at the other end and the front fixing portion a telescopic rod body set (33) corresponding to the portion (31), and a front clamping member (34) and a rear clamping member (35) sequentially disposed at the free end of the rear fixing portion (32); a tube (4) having one end fixed to the bottom side of the front end of the rear fixing portion (32), the other end fixed to the top side of the front end of the base (23), and a power portion (5) including a a housing (51) at the bottom surface, a pedal device (52) disposed outside the housing (51), an electric device (53) disposed in the housing (51), and a housing disposed on the housing a transmission unit (54) having one end connected to the rear wheel (26), a power source (55) disposed on the rear upper fork (24), and a handle (15) disposed on the handlebar (15) And a control device (56) electrically connected to the electric device (53) and the power source (55), wherein the transmission unit (54) enables the pedal device (52) and the electric device (53) to drive the rear wheel (26) Rotate.

The electric telescopic folding bicycle of the present invention can be folded by the cooperation of the front frame (1), the rear frame (2), the telescopic upper tube portion (3), the lower tube (4), and the power portion (5). The front frame (1) accommodated is fitted with the upper and lower telescopic upper tube portion (3), and is driven by the power unit (5) to achieve a safe and easy storage and high structural strength.

Among them, the telescopic upper tube portion (3) is applied to the novel electric telescopic folding bicycle, which not only has better anti-vibration effect, but also has a heavier weight, and the overall impact resistance is better, and it is not easily deformed. Security is no doubt.

Secondly, the novel electric telescopic folding bicycle can not only use the pedal device (52) to cooperate with the transmission unit (54) to drive the rear wheel (26) to rotate, and is used like a bicycle, and can also cooperate with the transmission unit through the electric device (53). ) Drive the rear wheel (26) to rotate. It is used like a normal electric vehicle. It is very free to use and can be used seamlessly.

Referring to FIGS. 2 and 3, the telescopic rod body set (33) further includes a first and second parallel arrangement of the top and bottom portions, which can be slipped in the rear fixing portion (32). a rod body (331), a central sheet body (332), and a second rod body (333), the central sheet body (332) can cooperate with the front clip member (34) and the rear clip member (35) Controlling the amount of expansion and contraction of the telescopic rod body group (33).

Among them, the focus of the present invention is to achieve the cooperation of the first rod body (331), the positioning rod (332) and the second rod body (333) arranged in a top-down, sequential parallel arrangement to approximate the I-shaped shape. The setting method enhances the resistance of vertical stress and can carry heavier weight. At the same time, it further improves the overall impact resistance, is less prone to deformation, improves safety performance, and facilitates assembly and reduces processing steps.

Secondly, the first rod body (331) and the second rod body (333) are preferably implemented by a hollow rod body. In addition to reducing the weight and weight of the bicycle, the utility model can reduce the cost and provide sufficient strength. Used to support heavy objects.

Referring to Figure 2, the transmission unit (54) is one of the following: a chain, a belt [not disclosed in the drawings).

Among them, by applying different transmission units (54), the novel electric telescopic folding bicycle can be flexibly applied, and different application ranges are generated, so that more consumers can apply.

Referring to FIG. 2 and FIG. 3, the first rod body (331) and the second rod body (333) are located at one end of the rear fixing portion (32), and are respectively provided with a lowering A cushion body (36) for vibrating so that the first rod body (331) and the second rod body (333) are smoothly slidably displaced.

Through the cushion body (36), collision between the first rod body (331), the second rod body (333) and the rear fixing portion (32) can be avoided, and the first rod body (331) and the second rod can be prevented. The body (333) is affected, and deformation or bending occurs, so that the telescopic rod body group (33) can be smoothly slid and displaced in the rear fixing portion (32).

Referring to FIG. 3, the central sheet body (332) has one side fixed to the first rod body (331) and the other side fixed to the second rod body (333), and the central sheet body is fixed. a guiding groove (3321) is further disposed on both sides of the center of the (332); the front clamping member (34) and the rear clamping member (35), both of which further comprise a guiding groove ( a T-shaped block (A) in 3321), a locking member (B) disposed on one side of the rear fixing portion (32) and screwed to the T-shaped block (A), and an active member disposed on the locking member ( B) a rotating handle (C) capable of driving the rotation; the front clamping member (34) and the rear clamping member (35), both of which can be disposed in one of the following manners: The same side is adjacent and disposed at different sides of the rear fixing portion (32) and is staggered.

Among them, through the cooperation of the T-shaped block (A), the locking member (B), and the rotating handle (C), the rider can quickly locate, which is very convenient, truly reflects the value of the telescopic bicycle, and is easy to carry and use.

Secondly, the front clamping member (34) and the rear clamping member (35) can be disposed on the same side or different sides of the rear fixing portion (32) according to requirements, so that the application range is expanded.

Referring to FIG. 2, the folding unit (12) further includes a base (121) sleeved with the front tube (13); a common configuration with the head tube (11), and corresponding a pivoting seat (122) pivotally connected to the base (121) on one side of the base (121) to allow the head tube (11) to fold toward the front wheel (16); a mirror corresponding to the a pivoting point of the base (121) and the pivoting seat (122), and a buckle (123) pivotally disposed on a corresponding side of the pivoting seat (122); a mirror corresponding to the base (121) and the pivot The pivoting portion of the transposition (122) is pivotally disposed on a corresponding side of the base (121) and can be engaged with the buckle (123) for controlling the pivoting portion of the pivoting seat (122) for pivoting or not ( 124); and a movable sleeve is disposed on the front tube (11), corresponding to the wrench portion (124), and a safety buckle (125) for restricting the opening or closing of the wrench portion (124) is provided.

Wherein, by the cooperation of the base (121) and the pivoting seat (122), there is no fear that the problem of being difficult to fold can occur, and the folding can be smoothly performed, and at the same time, the buckle (123), the wrench portion (124), and the safety buckle The application of the ring (125) allows the base (121) and the pivoting seat (122) to be stably matched when unfolded, without sudden separation, affecting the user's safety situation, multiple guarantees, and consumption Can be used with peace of mind.

Referring to FIG. 2, the buckle (123) further includes a rotating column (1231) horizontally disposed on a side of the pivoting seat (122), and a vertical column (1231) disposed perpendicular to the rotating column (1231). Buckle head (1232), and a set of limit springs (1233) disposed on one side of the rotating column (1231) and capable of limiting the amount of rotation of the rotating column (1231); the wrench portion (124) corresponding to the buckle At the head (1232), a positioning recess (1241) engageable with the latching head (1232) is further recessed, and a positioning slot (1242) is further disposed corresponding to the securing buckle (125); The safety buckle (125) is corresponding to the positioning groove (1242), and an L-shaped block (1251) corresponding to the positioning groove (1242) is protruded.

Wherein, the combination of the rotating column (1231), the locking head (1232) and the limiting spring (1233) forms a slow opening effect on the wrench portion (124), because the wrench portion (124) passes through the positioning recess (1241) ) The cooperation with the snap head (1232) requires a certain amount of force to be opened, which avoids the problem of accidental opening.

Next, the safety buckle (125) is passed through the L-shaped block (1251) and the positioning groove (1242) of the wrench portion (124). If the safety buckle (125) is not turned, the L-shaped block (1251) is turned. When the positioning groove (1242) is removed, the wrench portion (124) cannot be pulled, and the safety is very high.

Referring to FIG. 2, the control device (56) further includes a host (561) provided on the handlebar (15), having a display unit (5611) and electrically connected to the electric device (53). And a shifting device (562) disposed at one end of the handlebar (15) and electrically connected to the electric device (53).

Through the control of the host (561), coupled with the upper shifting device (562), the user can safely use, control the electric device (53) arbitrarily, and use the display unit (5611) to know the data such as speed and power. Worried that there will be problems that do not know how long it can ride, or that are difficult to control.

As shown in Fig. 4, the figure shows that the electric telescopic folding bicycle of the present invention is generally shown in the figure. When the telescopic adjustment is performed, the front and rear clamping members (34) and the rear clamping member (35) are controlled to allow expansion and contraction. The rod set (33) can be telescoped and is very simple to use. When the locking part (B) is rotated by the rotating handle (C) and the T-shaped block (A) is relaxed, the front frame (1) can be pulled and the front car can be adjusted. The distance between the frame (1) and the rear frame (2), and vice versa, when the locking member (B) is rotated by the rotating handle (C), and the T-shaped block (A) is tightened, The distance between the front frame (1) and the rear frame (2) can be fixed.

As shown in Fig. 5, the figure reveals that the electric telescopic folding bicycle of the present invention is generally shown in the figure. When folding and storing, the safety buckle (125) is first turned away, and the L-shaped block (1251) and the positioning groove are allowed. (1242) Separate, and then pull the wrench portion (124) outwardly to disengage the latching head (1232) from the mating positioning pocket (1241), which can be separated by the wrench portion (124). The seat (121) and the pivoting seat (122) achieve the effect of folding and accommodating the front end, and the use is very simple. Otherwise, when the front end is to be unfolded, the base (121) and the pivoting seat (122) are engaged and then turned inside. Pull the wrench part (124) in the direction, and let the snap head (1232) snap into the positioning pocket (1241), then close the wrench part (124) to the front tube (11), turn the safety buckle (125), and let the L shape The card block (1251) is fastened by the positioning groove (1242).

The structure, features and effects of the present invention are described in detail above with reference to the embodiments shown in the drawings. However, the above description is only a preferred embodiment of the present invention, but the present invention does not limit the scope of implementation as shown in the drawings. Modification changes consistent with the meaning of the present invention are intended to fall within the scope of the present invention as long as they are within the scope of equal effect.

1‧‧‧ front frame

11‧‧‧ head tube

12‧‧‧Folding unit

121‧‧‧Base

122‧‧‧ pivot seat

124‧‧‧Wrench department

125‧‧‧Safety buckle

13‧‧‧Before the tube

14‧‧‧ Front fork

15‧‧‧Car handle

16‧‧‧ front wheel

2‧‧‧ rear frame

21‧‧‧ Saddle tube

22‧‧‧ Saddle

23‧‧‧Base

24‧‧‧Back fork

25‧‧‧ rear fork

26‧‧‧ Rear wheel

3‧‧‧ Telescopic upper tube

31‧‧‧Pre-fixed department

32‧‧‧After the fixed department

34‧‧‧Front clamps

35‧‧‧ rear clamping parts

4‧‧‧Under the tube

5‧‧‧Power Department

51‧‧‧Shell

52‧‧‧foot device

54‧‧‧Transmission unit

55‧‧‧Power supply

56‧‧‧Control device

561‧‧‧Host

5611‧‧‧Display unit

562‧‧‧Transmission device

A‧‧‧T-block

B‧‧‧Locking parts

C‧‧‧Rotary handle

Claims (8)

An electric telescopic folding bicycle characterized by comprising: a front frame (1) comprising a front tube (11), a folding unit (12) disposed at a bottom end of the front tube (11), and a a front tube (13) at a bottom end of the folding unit (12), a front fork (14) connected to the bottom end of the folding unit (12) in a rotatable manner after passing through the front tube (13), and a laterally disposed on the front end a handlebar (15) at the top end of the tube (11), and a front wheel (16) rotatably disposed at a bottom end of the front fork (14); a rear frame (2) including a space provided in the head tube (11) a saddle tube (21) at the rear side, a saddle (22) disposed at a top end of the saddle tube (21), a base (23) disposed at a bottom end of the saddle tube (21), and one end a rear upper fork (24) connected to the rear end of the saddle tube (21), a rear lower fork (25) having one end connected to the rear side of the base (23) and the other end connected to the rear upper fork (23), a rear wheel (26) rotatably disposed at a junction of the rear upper fork (24) and the rear lower fork (25); a telescopic upper tube portion (3) disposed at an oblique angle to the vertical surface, And including a front fixing portion (31) disposed at a rear side of the front tube (13), and a The front side of the saddle tube (21) and the free end further corresponding to the rear fixing portion (32) of the front fixing portion (31), one movable in the rear fixing portion (32) and the other end and the front fixing portion ( 31) a telescopic rod body group (33) connected at a corresponding position, and a front clamping member (34) and a rear clamping member (35) sequentially disposed at a free end of the rear fixing portion (32); (4) one end is fixed to the bottom side of the front end of the rear fixing portion (32), the other end is fixed to the top side surface of the front end of the base (23), and a power portion (5) including a bottom surface a housing (51), a pedal device (52) disposed outside the housing (51), an electric device (53) disposed in the housing (51), and a housing (53) 51) a transmission unit (54) having one end connected to the rear wheel (26), a power source (55) disposed on the rear upper fork (24), and a power supply (55) disposed on the handlebar (15) and respectively a control device (56) electrically connected to the electric device (53) and the power source (55), the transmission unit (54) enabling the pedal device (52), the electric device The moving device (53) drives the rear wheel (26) to rotate. The electric telescopic folding bicycle according to claim 1, wherein: the telescopic rod body set (33) further comprises a parallel arrangement arranged from top to bottom, and is slidable in the rear fixing portion (32). a first rod body (331), a central sheet body (332), and a second rod body (333), the central sheet body (332) can cooperate with the front clip member (34) and the The rear clamping member (35) controls the amount of expansion and contraction of the telescopic rod body set (33). The electric telescopic folding bicycle according to claim 2, wherein the transmission unit (54) is one of the following: a chain, a belt. The electric telescopic folding bicycle according to claim 3, wherein: the first rod body (331) and the second rod body (333) are located at one end of the rear fixing portion (32), and respectively A cushion body (36) for reducing the vibration to smoothly slide the first rod body (331) and the second rod body (333) is provided. The electric telescopic folding bicycle according to claim 4, wherein the central sheet body (332) has one side fixed to the first rod body (331) and the other side and the second rod body (333). Fixedly, and a guiding groove (3321) is respectively disposed at two sides of the center of the central piece (332); the front clamping member (34) and the rear clamping member (35), both of which are still The utility model comprises a T-shaped block (A) disposed in the guiding groove (3321), a locking member (B) disposed on one side of the rear fixing portion (32) and screwed to the T-shaped block (A), and a rotating handle (C) disposed on the locking member (B) and capable of driving the rotation; the front clamping member (34) and the rear clamping member (35), both of which can be one of the following Means: disposed on the same side of the rear fixing portion (32) and adjacent to each other, and disposed at different sides of the rear fixing portion (32) and in a staggered manner. The electric telescopic folding bicycle according to claim 5, wherein: the folding unit (12) further includes a base (121) that is sleeved with the front tube (13); A heading (11) is disposed in a common configuration and corresponds to the base (121), and one side is pivotally connected to the base (121) to allow the front tube (11) to pass to the front wheel (16) a pivoting seat (122) that is folded in a direction; a mirror corresponding to the pivotal connection of the base (121) and the pivoting seat (122), and a buckle (123) pivotally disposed on a corresponding side of the pivoting seat (122) a mirroring corresponding to the pivotal connection between the base (121) and the pivoting seat (122), pivoted on the corresponding side of the base (121), and capable of cooperating with the buckle (123) for control The pivoting seat (122) pivots or not for the wrench portion (124); and a movable sleeve is disposed on the front end tube (11), corresponding to the wrench portion (124), for limiting the wrench portion ( 124) Safety buckle (125) for switch or not. The electric telescopic folding bicycle according to claim 6, wherein: the buckle (123) further includes a rotating column (1231) horizontally disposed on a side of the pivoting seat (122), and a vertical a snap head (1232) provided on the rotating column (1231), and a set of limit springs (1233) disposed on one side of the rotating column (1231) and capable of limiting the rotation amount of the rotating column (1231); the wrench a portion (124) corresponding to the snap head (1232) and recessed with a positioning recess (1241) engageable with the snap head (1232), corresponding to the safety buckle (125) And a positioning groove (1242); the safety buckle (125) corresponding to the positioning groove (1242), and an L-shaped block corresponding to the positioning groove (1242) is protruded ( 1251). The electric telescopic folding bicycle according to claim 7, wherein: the control device (56) further includes a display unit (5611) disposed on the handlebar (15), and the electric device (53) An electrically connected host (561); and a shifting device (562) disposed at one end of the handlebar (15) and electrically coupled to the electric device (53).