Electric tricycle

Abstract

The invention discloses an electric tricycle, which relates to the field of tricycles, and comprises a front frame, a middle frame and a rear frame, the front frame is connected with a handle for controlling the direction, the left side and the right side of the front frame are provided with front wheels, and the handle is connected with the front wheels through a direction control mechanism; pedals are connected to the front of the front frame, a seat framework inclining backwards is arranged on the middle frame, a seat is installed on the seat framework, and the shape of the seat is arranged along the structural trend of the seat framework, so that the posture of a driver is in a semi-lying type; the rear frame is connected with the rear wheel, and a driving motor is installed on the rear frame and connected with the rear wheel through a chain transmission mechanism. The gravity center of the electro-tricycle is low, the posture of a driver is a semi-lying type, rollover of the tricycle can be reduced, the tricycle is prone to uphill due to the large wheel track, the electro-tricycle can run on a flat road and can be in a cross-country and semi-lying type driving posture, human body vertebra impact can be reduced, the driving pleasure is improved, and the electro-tricycle is convenient to control.

Description

Technical Field

[0001] The invention relates to the field of electric tricycles, and in particular to an electric tricycle. Background Art

[0002] Electric tricycles or four-wheelers are convenient for people to travel, and are often used by disabled people. Existing electric tricycles or four-wheelers have a high center of gravity, are prone to rollover, and have a small wheelbase. They are easy to roll back / roll over when going uphill, and can only be driven on flat and paved roads. Therefore, we designed an electric tricycle with a lower center of gravity. Summary of the invention

[0003] The purpose of the present invention is to provide an electric tricycle in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] The present invention provides an electric tricycle, comprising a front frame, a middle frame and a rear frame, wherein the front frame is connected with a handle for controlling the direction, and front wheels are arranged on both the left and right sides of the front frame, the handle is connected with the front wheels through a direction control mechanism, and a pedal is connected to the front of the front frame;

[0006] The intermediate frame is provided with a seat frame tilted backward, and a seat is mounted on the seat frame. The shape of the seat is arranged along the structural trend of the seat frame, so that the driver is in a semi-lying posture;

[0007] The rear frame is connected to the rear wheel, and a drive motor is installed on the rear frame. The drive motor is connected to the rear wheel through a chain transmission mechanism.

[0008] Preferably, the intermediate frame has a rectangular skeleton structure, in which the lower layer is lower than the height of the front and rear wheel axles, and the upper layer is higher than the height of the front and rear wheels, so that the center of gravity can be lowered and the vehicle is not prone to rollover. A support plate is fixedly provided on the rectangular skeleton structure, and the seat frame is connected to the support plate.

[0009] Preferably, the seat frame comprises a keel and a cross brace, the keel is composed of a hip support and a back support, and a plurality of cross braces are arranged on both sides of the keel for supporting the seat;

[0010] The buttocks support is inclined upward, the back support is inclined backward, and a guide rail is provided under the seat, and the seat is slidably connected to the guide rail via a slider.

[0011] Preferably, a pneumatic support rod is connected between the back support and the intermediate frame, one end of the first pneumatic support rod is hinged to the keel, and the other end is hinged to the intermediate frame.

[0012] Preferably, a mounting frame is connected to the seat frame near the upper portion, and a long rope light is mounted on the mounting frame.

[0013] Preferably, the front frame includes a two-layer structure, namely an upper frame and a lower frame, the upper frame is connected to the upper part of the middle frame, and the lower frame is connected to the lower part of the middle frame.

[0014] Preferably, the upper frame includes an upper connecting frame, one end of which is connected to the upper part of the middle frame, and the other end of which extends forward and is connected to two foot pedals;

[0015] The lower vehicle frame comprises a lower connecting frame, and the lower connecting frame is connected to the upper connecting frame via a fixing rod;

[0016] A second rotating arm and a third rotating arm are respectively provided on the inner sides of the front wheels on the left and right sides, the upper connecting frame is respectively hinged to the upper ends of the second rotating arm and the third rotating arm through two upper articulated frames on the left and right sides, and the lower connecting frame is respectively hinged to the lower ends of the second rotating arm and the third rotating arm through two lower articulated frames on the left and right sides;

[0017] Both sides of the fixing rod are connected to the two lower articulated frames through third pneumatic support rods respectively.

[0018] Preferably, the handle is arranged above the upper connecting frame, and the handle is connected to the first rotating arm, the first rotating arm passes through the upper connecting frame and is connected to the rotating rod, a swing arm is connected below the rotating rod, the swing arm is connected to the first rocker, the first rocker is connected to the lower part of the first rotating shaft, the upper part of the first rotating shaft is connected to the second rocker, and the middle part of the first rotating shaft is connected to the second rotating arm through a connecting plate;

[0019] The second rocker arm extends to the other front wheel and is connected to the second rotating shaft, and the second rotating shaft is connected to the third rotating arm.

[0020] Preferably, the rear frame comprises two first support rods respectively arranged on both sides of the rear wheels, one end of the first support rod is connected to the lower part of the intermediate frame, and the other end is connected to the wheel axle of the rear wheel; the two first support rods are respectively connected to the same connecting rod through vertical second support rods;

[0021] A second pneumatic support rod is connected between the connecting rod and the lower part of the intermediate frame. One end of the second pneumatic support rod is hinged to the connecting rod, and the other end is hinged to the intermediate frame.

[0022] Preferably, the first support rod on one side of the rear wheel is connected to a motor bracket, and a drive motor is mounted on the motor bracket.

[0023] The beneficial effects are: the electric tricycle of the present application has a low center of gravity, the driver's posture is semi-lying, which can reduce the rollover of the tricycle, the wheelbase is large and easy to go uphill, and it can not only drive on flat roads, but also off-road, the semi-lying driving posture can reduce the impact on the human spine, improve driving pleasure, and the car is easy to control. In addition, the seat of the tricycle is adjustable, which can be adjusted to an upright sitting position or a semi-lying position, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a front view of the present invention;

[0026] Figure 2 is a rear view of the present invention;

[0027] Figure 3 is a top view of the present invention;

[0028] Figure 4 is a bottom view of the present invention;

[0029] Figure 5 It is a first directional stereogram of the present invention;

[0030] Figure 6 is a second directional stereogram of the present invention;

[0031] Figure 7 It is a third-direction stereogram of the present invention;

[0032] Figure 8 is a structural diagram of the front frame of the present invention;

[0033] Fig. 9 It is a structural diagram of a seat frame of the present invention.

[0034] The following are the descriptions of the reference numerals:

[0035] 1. Front frame; 101. Upper frame; 101a. Upper connecting frame; 101b. Upper articulated frame; 102. Lower frame; 102a. Lower connecting frame; 102b. Lower articulated frame; 2. Intermediate frame; 201. Support plate; 3. Rear frame; 301. First support rod; 302. Second support rod; 303. Connecting rod; 304. Second pneumatic support rod; 4. Seat frame; 401. Keel; 402. Cross brace; 5. Seat; 6. Mounting frame; 7. Long rope light; 8. Handle; 9. , direction control mechanism; 901, first rotating arm; 902, rotating rod; 903, swing arm; 904, first rocker; 905, first rotating shaft; 906, second rotating arm; 907, second rocker; 908, second rotating shaft; 909, third rotating arm; 10, pedal; 11, guide rail; 12, front wheel; 13, first pneumatic support rod; 14, rear wheel; 15, driving motor; 16, chain transmission mechanism; 17, motor bracket; 18, fixing rod; 19, third pneumatic support rod. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0037] See also Figure 1-Figure 9As shown, the present invention provides an electric tricycle, comprising a front frame 1, an intermediate frame 2 and a rear frame 3, which are connected to form the frame of the entire tricycle, and the front and rear wheel spacing is large. The front frame 1 is connected with a handlebar 8 for controlling the direction, and the front wheels 12 are arranged on both the left and right sides thereof, and the handlebar 8 is connected to the front wheels 12 through a direction control mechanism 9, and the direction of the front wheels 12 can be controlled by manipulating the direction control mechanism 9 by the handle 8, and a foot pedal 10 is connected to the front of the front frame 1, and the driver can step on the foot pedal 10 in a semi-lying posture, which is in a relatively comfortable state. The intermediate frame 2 is provided with a seat frame 4 tilted backward, and a seat 5 is installed on the seat frame 4, and the shape of the seat 5 is arranged along the structural trend of the seat frame 4, so that the posture of the driver is in a semi-lying position. The rear frame 3 is connected with the rear wheel 14, and a drive motor 15 is installed on the rear frame 3, and the drive motor 15 is connected to the rear wheel 14 through a chain transmission mechanism 16. The above scheme is driven by the rear wheels 14 and the direction is controlled by the front wheels 12. The frame of the electric tricycle of the present application is open and easy to operate. The center of gravity of the electric tricycle is low, and the driver's posture is semi-recumbent, which can reduce the rollover of the tricycle. The large wheelbase makes it easy to go uphill. It can not only travel on flat roads, but also off-road. The semi-recumbent driving posture can reduce the impact on the human spine, enhance driving pleasure, and make the car easy to operate.

[0038] As a preferred embodiment of this case, refer to Figure 1 and Figure 5 As shown, the middle frame 2 has a rectangular frame structure, the lower layer of which is lower than the height of the axles of the front wheels 12 and the rear wheels 14, and the upper layer is higher than the height of the front wheels 12 and the rear wheels 14, so that the center of gravity can be lowered and the vehicle is not prone to rollover. A support plate 201 is fixedly provided on the rectangular frame structure, and the seat frame 4 is connected to the support plate 201.

[0039] For further reference, Fig. 9As shown, the seat frame 4 includes a keel 401 and a cross brace 402. The keel 401 is composed of a buttocks support and a back support. A plurality of cross braces 402 are arranged on both sides of the keel 401 to support the seat 5 and maintain the stability of the seat 5. The buttocks support is inclined upward and the back support is inclined backward. This structure can make the driver's posture in a semi-lying state, and a guide rail 11 is arranged below the seat 5. The seat 5 is slidably connected to the guide rail 11 through a slider, so that the front and rear distance of the seat 5 can be conveniently adjusted. A first pneumatic support rod 13 is connected between the back support and the middle frame 2. One end of the first pneumatic support rod 13 is hinged to the keel 401, and the other end is hinged to the middle frame 2. When the seat 5 is adjusted to a certain position, the first pneumatic support rod 13 can play a supporting role to maintain the position and stability of the seat 5. Moreover, since the guide rail 11 is designed below the seat 5 and the first pneumatic support rod 13 is designed on the back of the seat 5, the seat 5 can be adjusted to an upright sitting or semi-lying position.

[0040] As an optional implementation method of this case, refer to Figure 1 As shown, the seat frame 4 is connected to a mounting frame 6 near the upper part, and a long rope light 7 is installed on the mounting frame 6. In the case of low visibility, people behind can see the long rope light 7 and discover it in advance and avoid it.

[0041] As an important implementation method of this case, refer to Figure 8 As shown, the front frame 1 includes a two-layer structure, namely an upper frame 101 and a lower frame 102. The upper frame 101 is connected to the upper part of the middle frame 2, and the lower frame 102 is connected to the lower part of the middle frame 2. This structure can improve the stability of the front frame 1.

[0042] Among them, the upper frame 101 includes an upper connecting frame 101a, one end of the upper connecting frame 101a is connected to the upper part of the middle frame 2, and the other end extends forward and is connected to two foot pedals 10; the lower frame 102 includes a lower connecting frame 102a, and the lower connecting frame 102a is connected to the upper connecting frame 101a through a fixing rod 18.

[0043] A second rotating arm 906 and a third rotating arm 909 are respectively provided on the inner sides of the front wheels 12 on the left and right sides. The upper connecting frame 101a is respectively hinged to the upper ends of the second rotating arm 906 and the third rotating arm 909 through two upper articulated frames 101b on the left and right sides, and the lower connecting frame 102a is respectively hinged to the lower ends of the second rotating arm 906 and the third rotating arm 909 through two lower articulated frames 102b on the left and right sides; both sides of the fixed rod 18 are respectively connected to the two lower articulated frames 102b through the third pneumatic support rod 19, and the third pneumatic support rod 19 can reduce shock for the front wheels 12 and keep the front frame 1 stable on bumpy roads.

[0044] Preferably, the handle 8 is arranged above the upper connecting frame 101a, and the handle 8 is connected to the first rotating arm 901, the first rotating arm 901 passes through the upper connecting frame 101a and is connected to the rotating rod 902, a swing arm 903 is connected below the rotating rod 902, the swing arm 903 is connected to the first rocking arm 904, the first rocking arm 904 is connected to the lower part of the first rotating shaft 905, the upper part of the first rotating shaft 905 is connected to the second rocking arm 907, and the middle part of the first rotating shaft 905 is connected to the second rotating arm 906 through a connecting plate, the first rotating arm 901, the rotating rod 902, the swing arm 903, the first rocking arm 904, the first rotating shaft 905, the second rocking arm 907, and the second rotating arm 906 together constitute the direction control mechanism 9. The second rocking arm 907 extends to the other front wheel 12 and is connected to the second rotating shaft 908, and the second rotating shaft 908 is connected to the third rotating arm 909. The above scheme controls the rotating handle 8 so that the first rotating arm 901 drives the rotating rod 902 to rotate, the rotating rod 902 drives the rocking arm to rotate, and the rocking arm drives the first rocking arm 904 to swing. The first rocking arm 904 is connected to the second rotating arm 906 through the first rotating shaft 905, thereby driving the rotation direction of the front wheel 12 connected to the second rotating arm 906. The first rotating shaft 905 is connected to the second rocking arm 907. Through the structure in which the second rocking arm 907 is connected to the second rotating shaft 908 and the third rotating arm 909, the rotation direction of the front wheel 12 on the other side is simultaneously prompted, so that the two front wheels 12 rotate synchronously, which is convenient for stable control of the direction.

[0045] As an important implementation method of this case, refer to Figure 6 and Figure 7As shown, the rear frame 3 includes two first support rods 301 respectively arranged on both sides of the rear wheel 14, one end of the first support rod 301 is connected to the lower part of the middle frame 2, and the other end is connected to the wheel axle of the rear wheel 14; the two first support rods 301 are respectively connected to the same connecting rod 303 through the vertical second support rods 302, and this structure can maintain the stability of the rear frame 3. A second pneumatic support rod 304 is connected between the connecting rod 303 and the lower part of the middle frame 2, one end of the second pneumatic support rod 304 is hinged to the connecting rod 303, and the other end is hinged to the middle frame 2, and the second pneumatic support rod 304 can reduce shock for the rear wheel 14. The first support rod 301 on one side of the rear wheel 14 is connected to the motor bracket 17, and the drive motor 15 is installed on the motor bracket 17, and the rear wheel 14 can be driven by the drive motor 15.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An electric tricycle, characterized in that: It comprises a front frame, a middle frame and a rear frame, wherein the front frame is connected with a handle for controlling the direction, and front wheels are arranged on the left and right sides thereof, the handle is connected with the front wheels through a direction control mechanism, and a pedal is connected in front of the front frame; The intermediate frame is provided with a seat frame tilted backward, and a seat is mounted on the seat frame. The shape of the seat is arranged along the structural trend of the seat frame, so that the driver is in a semi-lying posture; The rear frame is connected to the rear wheel, and a drive motor is installed on the rear frame. The drive motor is connected to the rear wheel through a chain transmission mechanism.

2. An electric tricycle according to claim 1, characterized in that: The intermediate frame has a rectangular parallelepiped skeleton structure, on which a support plate is fixedly arranged, and the seat frame is connected to the support plate.

3. An electric tricycle according to claim 2, characterized in that: The seat frame includes a keel and a cross brace, the keel is composed of a hip support and a back support, and a plurality of cross braces are arranged on both sides of the keel for supporting the seat; The buttocks support is inclined upward, the back support is inclined backward, and a guide rail is provided under the seat, and the seat is slidably connected to the guide rail via a slider.

4. An electric tricycle according to claim 3, characterized in that: A first pneumatic support rod is connected between the back support and the middle frame, one end of the first pneumatic support rod is hinged to the keel, and the other end of the first pneumatic support rod is hinged to the middle frame.

5. An electric tricycle according to claim 4, characterized in that: The seat frame is connected with a mounting frame near the upper part, and a long rope lamp is installed on the mounting frame.

6. The electric tricycle according to claim 1, characterized in that: The front frame includes two layers of structures, namely an upper frame and a lower frame. The upper frame is connected to the upper part of the middle frame, and the lower frame is connected to the lower part of the middle frame.

7. An electric tricycle according to claim 6, characterized in that: The upper frame includes an upper connecting frame, one end of which is connected to the upper part of the middle frame, and the other end of which extends forward and is connected to two foot pedals; The lower vehicle frame comprises a lower connecting frame, and the lower connecting frame is connected to the upper connecting frame via a fixing rod; A second rotating arm and a third rotating arm are respectively provided on the inner sides of the front wheels on the left and right sides, the upper connecting frame is respectively hinged to the upper ends of the second rotating arm and the third rotating arm through two upper articulated frames on the left and right sides, and the lower connecting frame is respectively hinged to the lower ends of the second rotating arm and the third rotating arm through two lower articulated frames on the left and right sides; Both sides of the fixing rod are connected to the two lower articulated frames through third pneumatic support rods respectively.

8. An electric tricycle according to claim 7, characterized in that: The handle is arranged above the upper connecting frame, and the handle is connected to the first rotating arm, the first rotating arm passes through the upper connecting frame and is connected to the rotating rod, a swing arm is connected below the rotating rod, the swing arm is connected to the first rocking arm, the first rocking arm is connected to the lower part of the first rotating shaft, the upper part of the first rotating shaft is connected to the second rocking arm, and the middle part of the first rotating shaft is connected to the second rotating arm through a connecting plate; The second rocker arm extends to the other front wheel and is connected to the second rotating shaft, and the second rotating shaft is connected to the third rotating arm.

9. The electric tricycle according to claim 1, characterized in that: The rear frame comprises two first support rods respectively arranged on both sides of the rear wheels, one end of the first support rod is connected to the lower part of the middle frame, and the other end is connected to the wheel axle of the rear wheel; the two first support rods are respectively connected to the same connecting rod through vertical second support rods; A second pneumatic support rod is connected between the connecting rod and the lower part of the intermediate frame. One end of the second pneumatic support rod is hinged to the connecting rod, and the other end is hinged to the intermediate frame.

10. An electric tricycle according to claim 9, characterized in that: The first support rod at one side of the rear wheel is connected to a motor bracket, and a driving motor is installed on the motor bracket.

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