阅读说明：本技术 靠背可调节的电动三轮车 (Electric tricycle with adjustable backrest ) 是由 孔正华 张炜 赵留海 王凯 于 2019-12-19 设计创作，主要内容包括：本发明公开了一种靠背可调节的电动三轮车,包括车身和车轮,所述车身设有车座,所述车座的后方设有靠背,所述靠背包括主靠背和副靠背,所述主靠背和所述副靠背铰接。本发明的三轮车设有相互铰接的主靠背和副靠背,所述副靠背与所述主靠背贴合状态时,副靠背作主靠背用,两层靠背的形式可以提高背靠时的舒适度,而且当驾驶员的身材较小时,也能够很好的依靠靠背,当所述副靠背与所述主靠背呈90°状态时,由于其旋转的最大角度就是90°,所述副靠背可以作扶手使用,提高三轮车的安全性。(The invention discloses an electric tricycle with an adjustable backrest, which comprises a tricycle body and wheels, wherein the tricycle body is provided with a saddle, the rear part of the saddle is provided with the backrest, the backrest comprises a main backrest and an auxiliary backrest, and the main backrest is hinged with the auxiliary backrest. The tricycle is provided with the main backrest and the auxiliary backrest which are hinged with each other, when the auxiliary backrest is attached to the main backrest, the auxiliary backrest serves as the main backrest, the comfort level of the tricycle during backrest can be improved in the form of the two-layer backrest, a driver can well lean on the backrest when the size of the driver is small, and when the auxiliary backrest and the main backrest are in a 90-degree state, the auxiliary backrest can serve as the armrest due to the fact that the maximum rotating angle of the auxiliary backrest is 90 degrees, and safety of the tricycle is improved.)

1. An electric tricycle with an adjustable backrest comprises a tricycle body (1) and wheels (2), and is characterized in that: the bicycle is characterized in that a saddle (11) is arranged on the bicycle body, a backrest (3) is arranged behind the saddle and comprises a main backrest (31) and an auxiliary backrest (32), the main backrest is of a transverse rectangular structure, the auxiliary backrest is hinged to the shorter side of the main backrest, and the auxiliary backrest can rotate to be attached to the main backrest and rotate to form an included angle of 90 degrees with the main backrest;

the side of the main backrest, which faces the user, is provided with a soft back cushion (311), the side of the auxiliary backrest, which is in contact with the soft back cushion, is provided with a groove (321) matched with the surface shape of the soft back cushion, and the other side of the auxiliary backrest is provided with the soft back cushion.

2. The backrest-adjustable electro-tricycle of claim 1, wherein: the two ends of the main backrest are provided with a plurality of main hinged arms (312) extending outwards, the main hinged arms are provided with main hinged holes (3121), and the auxiliary backrest is hinged to the main hinged arms.

3. The backrest-adjustable electro-tricycle of claim 2, wherein: and a limiting plate (313) is arranged on the back surface of the main hinged arm, and when the auxiliary backrest rotates to form an included angle of 90 degrees with the main backrest, the limiting plate limits the further rotation of the auxiliary backrest.

4. The backrest-adjustable electro-tricycle of claim 3, wherein: the hinged end of the secondary backrest is provided with a plurality of secondary hinged arms (322) which are provided with secondary hinged holes (3221) and are L-shaped.

5. The back-adjustable electro-tricycle of claim 1 or 4, wherein: the two auxiliary backrests are respectively positioned at two ends of the main backrest, and the length of each auxiliary backrest is 1/3 of the length of the main backrest.

6. The backrest-adjustable electro-tricycle of claim 1, wherein: a buckle structure is arranged between the main backrest and the auxiliary backrest, and the auxiliary backrest can be clamped and positioned when rotating to be attached to the main backrest.

7. The backrest-adjustable electro-tricycle of claim 1, wherein: the main backrest is provided with a hook, and when the auxiliary backrest rotates to be attached to the main backrest, the hook can be buckled on the auxiliary backrest to realize clamping and positioning.

Technical Field

The invention belongs to the technical field of electric tricycles, and particularly relates to an electric tricycle with an adjustable backrest.

Background

The electric tricycle is a three-wheel transportation tool which is driven by a storage battery and a motor to pull goods or people, along with the fact that the economic development of China is more and more rapid in recent years, the living standard of people is continuously improved, the country advocates green travel energy conservation and environmental protection, and the electric tricycle is deeply favored by people due to the functional advantages of low price, convenience and environmental protection.

The seat is the main component part of electric tricycle, and when driving electric tricycle, the driver need sit on the electric tricycle seat all the time, and therefore the comfort of seat all is especially important with the security, and electric tricycle's seat back comprises a plate body usually, and fixed the setting handrail on the seat edge for prevent the driver roll-off, or prevent that many people from sitting together and meet accident, but this handrail is owing to fixed the setting, makes the driver get on or off the bus very inconvenient.

Disclosure of Invention

The invention mainly solves the technical problem of providing an electric tricycle with an adjustable backrest, which is provided with a main backrest and a secondary backrest which are hinged with each other, wherein when the secondary backrest is in a fit state with the main backrest, the secondary backrest is used as the main backrest, the comfort level of the backrest can be improved in a two-layer backrest mode, when a driver is small in size, the driver can well lean on the backrest, when the secondary backrest and the main backrest are in a 90-degree state, the maximum rotation angle of the secondary backrest is 90 degrees, and the secondary backrest can be used as an armrest, so that the safety of the tricycle is improved.

In order to solve the above technical problems, one technical solution adopted by the present invention is as follows:

the utility model provides an electric tricycle with adjustable back, includes automobile body and wheel, its characterized in that: the bicycle is characterized in that a saddle is arranged on the bicycle body, a backrest is arranged behind the saddle and comprises a main backrest and an auxiliary backrest, the main backrest is of a transverse rectangular structure, the auxiliary backrest is hinged with the shorter side of the main backrest, and the auxiliary backrest can rotate to be attached to the main backrest and rotate to form an included angle of 90 degrees with the main backrest;

when the auxiliary backrest is in a fit state with the main backrest, the auxiliary backrest serves as the main backrest, the comfort level of the backrest can be improved due to the two-layer backrest, and when a user is small in size, the user can well lean on the backrest;

when the auxiliary backrest and the main backrest are in a 90-degree state, the maximum rotation angle of the auxiliary backrest is 90 degrees, and the auxiliary backrest can be used as a handrail, so that the safety of the tricycle is improved.

The main backrest is characterized in that a soft back cushion is arranged on one side, facing a user, of the main backrest, a groove matched with the surface shape of the soft back cushion is formed in one side, in contact with the soft back cushion, of the auxiliary backrest, the groove is used for accommodating the soft back cushion, the auxiliary backrest can be attached to the main backrest, and the soft back cushion is arranged on the other side of the auxiliary backrest.

Furthermore, a plurality of main hinged arms extending outwards are arranged at two ends of the main backrest, the main hinged arms are provided with hinged holes, and the auxiliary backrest is hinged to the main hinged arms.

Further, the limiting plate is arranged on the back surface of the main hinged arm, when the auxiliary backrest rotates to form an included angle of 90 degrees with the main backrest, the limiting plate limits the further rotation of the auxiliary backrest, and it can be understood that the back surface of the main hinged arm refers to a surface which is not contacted with a user, namely the back surface of the backrest.

Further, the articulated end of vice back is equipped with a plurality of vice articulated arms, vice articulated arm has vice articulated hole, vice articulated arm is "L" shape, and the vice articulated arm of L shape can make vice back and main back can the perfect laminating, can know because the existence of soft cushion to and main back and vice back all have certain thickness, articulated arm between them is "L" shape, just can guarantee better laminating state.

Further, two sub-backrests are provided, the two sub-backrests are respectively located at two ends of the main backrest, the length of the sub-backrests is 1/3 times the length of the main backrest, and the sub-backrest is set to 1/3 times the length of the main backrest, in view of the following: the user can conveniently get on or off the vehicle or change the state of the auxiliary backrest on the seat, and inconvenience caused by overlong length is avoided.

Furthermore, a buckle structure is arranged between the main backrest and the auxiliary backrest, and when the auxiliary backrest rotates to be attached to the main backrest, the main backrest and the auxiliary backrest can be clamped and positioned.

Furthermore, the main backrest is provided with a hook, and when the auxiliary backrest rotates to be attached to the main backrest, the hook can be buckled on the auxiliary backrest to realize clamping and positioning.

The invention has the beneficial effects that:

the backrest of the tricycle is provided with the main backrest and the auxiliary backrest which are hinged with each other, when the auxiliary backrest is attached to the main backrest, the auxiliary backrest serves as the main backrest, the comfort level of the backrest can be improved in the form of two layers of backrests, a user (a driver or a person sitting on a seat) can well lean on the backrest when the stature of the user is small, and when the auxiliary backrest and the main backrest are in a 90-degree state, the auxiliary backrest can serve as an armrest due to the fact that the maximum rotating angle of the auxiliary backrest is 90 degrees, and the safety of the tricycle is improved;

the two ends of the main backrest are respectively provided with a plurality of main hinged arms extending outwards, the plurality of hinged arms can ensure the hinging reliability of the auxiliary backrest, and further improve the safety of the tricycle, the back surface of each main hinged arm is provided with a limiting plate, and the limiting plates are arranged between every two hinged arms, so that the rigidity of hinging and limiting can be ensured, and further the safety of the tricycle is improved;

the L-shaped auxiliary articulated arm can enable the auxiliary backrest and the main backrest to be perfectly jointed, and due to the existence of the soft back cushion and the fact that the main backrest and the auxiliary backrest both have certain thicknesses, the articulated arms of the auxiliary backrest and the main backrest are L-shaped, so that a better jointing state can be ensured; the sub-backrest is set to 1/3 main backrest length, so that the user can conveniently get on or off the vehicle or change the state of the sub-backrest on the seat without inconvenience caused by too long length.

The clamping structure can prevent the auxiliary backrest from shaking when the auxiliary backrest does not need to be rotated into the armrest, so that the use experience is improved; the hook-type clamping device is particularly convenient to use and low in preparation cost.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

Fig. 1 is an overall structural schematic diagram of an electric tricycle according to the present invention;

FIG. 2 is a schematic view of the backrest structure of the electro-tricycle of the present invention;

FIG. 3 is an exploded view of the back rest of the present invention;

FIG. 4 is an enlarged view of section A of FIG. 2;

the parts in the drawings are marked as follows:

a vehicle body 1, a seat 11, a wheel 2;

the backrest 3, the main backrest 31, the sub-backrest 32, the soft pad 311, the groove 321, the main hinge arm 312, the hinge hole 3121, the stopper plate 313, the sub-hinge arm 322, the sub-hinge hole 3221, the hook 33, and the hanging pin 34.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.