CN201633848U

CN201633848U - Vehicle frame of load-carrying type electric vehicle

Info

Publication number: CN201633848U
Application number: CN2010201385329U
Authority: CN
Inventors: 王小成
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-23
Filing date: 2010-03-23
Publication date: 2010-11-17
Anticipated expiration: 2020-03-23

Abstract

The utility model relates to a vehicle frame of a load-carrying type electric vehicle, which relates to the technical field of load-carrying type electric vehicles, in particular to an improved vehicle frame of the load-carrying type electric vehicle. The utility model solves the problems of poor shock absorption performance and insufficient comfort performance of the load-carrying type electric vehicle. The utility model has the technical scheme that the vehicle frame of the load-carrying type electric vehicle comprises a front fork connecting rod, a crossbeam support frame, a back fork support fame and a cargo frame, wherein the front end and the back end of the crossbeam support frame are respectively connected with the front fork connecting rod and the back fork support frame. The utility model is characterized in that a movable shaft capable of making the back fork support frame upwards and downwards swing is connected between the back fork support frame and the crossbeam support frame, a cargo frame connecting rod is arranged between the crossbeam support frame and the cargo frame, and elastic shock absorbers are respectively arranged between the cargo frame and two branches of the back fork support frame. The elastic shock absorbers are added between the back fork support frame and the cargo frame, the shock absorption performance of a back wheel of the electric vehicle can be enhanced, and the requirement of the load-carrying type electric vehicle on the comfort performance can be met.

Description

A kind of heavy type electromobile frame

Technical field

The utility model relates to the technical field of heavy type battery-driven car, is specifically related to the vehicle frame improvement aspect of heavy type battery-driven car.

Background technology

At present, the kind of battery-driven car mainly includes: luxury, light type and the heavy type of riding instead of walk, and the battery-driven car of heavy type is mainly considered is loading, and the shelf than large space must be arranged, and the battery-driven car of heavy type is considered from steadiness, shelf all are that many strut bars by and arranged on left and right sides are fixedly connected on the back vent support, though solved the problem of steadiness, traveling comfort is poor, only rely on the wheel damping, the goods that transports is bad by the top easily, driver's fatiguability.

In addition, the existing battery of most battery-driven car on the market all is to adopt on the front end or back end support that tiltedly is placed on vehicle frame, thereby, will bring the new problem of another one, that is exactly that the battery installation site is higher relatively, and crank is in case of emergency, the center of gravity of battery-driven car is wayward, overturns easily.The heavy type battery-driven car is because shelf space is big, the installation site at seat is just less relatively, there is not space mounting as the generous comfortable leather seat of the luxury or light type of riding instead of walk, can only fix a triangle cushion by a pole top with the mode at standard bicycle seat, triangle cushion not only traveling comfort is poor, in addition, the triangle cushion can't carry and deposit outdoor service tools commonly used.

Summary of the invention

In sum, main purpose of the present utility model is poor in order to solve heavy type battery-driven car damping performance, the problem that traveling comfort is not enough, and a kind of heavy type electromobile frame that proposes.

For solving the problem that the utility model proposed, the technical scheme that adopts is: a kind of heavy type electromobile frame, comprise: front fork connecting rod, big boom support, back vent support and shelf, the forward and backward two ends of described big boom support connect front fork connecting rod and back vent support respectively, it is characterized in that: be connected with the movable axis that the back vent support is swung up and down between described back vent support and big boom support; Be provided with the shelf connecting rod between described big boom support and shelf, also be respectively equipped with elastic shock attenuation between two bifurcateds of shelf and back vent support.

As being to the further improved technical scheme of the utility model:

Described big boom support is a basket body structure, and it includes: at the bottom of basket mouth, basket wall and the basket, the basket mouth is the stirrup structure, connects front fork connecting rod and shelf connecting rod respectively; Be the band iron structure at the bottom of basket wall and the basket, at the bottom of basket wall captive joint basket mouth and the basket, also connect the bottom of front fork connecting rod and the bottom of shelf connecting rod at the bottom of the basket respectively.

At the bottom of the described basket and the shelf connecting rod be that same band iron bending forms.

The fixing welding of the top of described shelf connecting rod and shelf also is provided with the stirrup of the band iron structure that is connected shelf connecting rod and shelf in the angle of shelf connecting rod and shelf.

The upper end of described elastic shock attenuation is by coupling link and shelf pivot bush unit, and the lower end of elastic shock attenuation is by two bifurcated top pivot bush units of coupling link and back vent support.

Described elastic shock attenuation is the motor cycle rear wheel spring shock absorption.

The thickness of forming the band iron that adopts at the bottom of the basket wall of described big boom support and the basket is 8mm.

The length of described big boom support is 420mm.

Vertically be connected with on the described big boom support and independently sit the case strut bar.

The beneficial effects of the utility model are: increase elastic shock attenuation between back vent support and shelf, strengthen the damping performance of battery-driven car trailing wheel, satisfy the requirement to traveling comfort of heavy type battery-driven car, the big boom support of basket body that is welded by band iron is used to place storage battery, reduced the height of storage battery in vehicle frame, thereby whole battery-driven car center of gravity is reduced, strengthen the stability in the driving process, independently sit the case strut bar for the installation site, seat is moved forward, increased the seat installing space, sit the leather cushion that a band tool box can be installed on the case strut bar, increasing the traveling comfort at seat, slowing down fatigue.

Description of drawings

Fig. 1 is the structural representation of existing heavy type battery-driven car;

Fig. 2 is a perspective view of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing and preferred a kind of specific embodiment structure of the present utility model is done to describe further:

Shown in Fig. 1, the big boom support 2 of existing heavy type battery-driven car adopts the welding of pipe shape material, storage battery 7 or lean to is installed on the front fork connecting rod 1, lean to and be installed on the seat pole 8, be mounted on the big boom support 2, the single-piece center of gravity is higher, and center of gravity is wayward when break turn especially in the process of moving, thus the band potential safety hazard.The shelf 4 of existing heavy type battery-driven car all are that many strut bars 41 by and arranged on left and right sides are fixedly connected on the back vent support 3, during the road unfairness, and driving process moderately gusty air discomfort, shelf 4 spaces are big, and seat cushion can only adopt standard bicycle triangle cushion 6.

Shown in Fig. 2, the utility model comprises: front fork connecting rod 1, big boom support 2, back vent support 3 and shelf 4 are provided with shelf connecting rod 5 at big boom support 2 and 4 of shelf.Big boom support 2 is that an opening is rectangular basket body structure, big boom support 2 is except being used to connect front fork connecting rod 1 and the back vent support 3, also be used to the storage battery of heavy type battery-driven car that the installation site is provided, the big boom support 2 basket mouths 21 of basket body structure are the bigger stirrup structure of hardness, the rear and front end of basket mouth 21 respectively with front fork connecting rod 1 and

shelf connecting rod

5,23 all adopt the thick band iron structure of 8mm at the bottom of the basket wall 22 of the big boom support 2 of basket body structure and the basket, reduce storage battery and ground end height, at the bottom of the basket 23 and shelf connecting rod 5 form for same band iron bending,

basket wall

22 and 23 welding at the bottom of basket mouth 21 and the basket, 23 front end also extends to the bottom of front fork connecting rod 1 and is connected at the bottom of the basket.

Main inventive point of the present utility model is: 2 of the fork-tail of back vent support 3 and big boom supports are connected by a movable axis 31 parallel with the bottom bracket axle 25 on the boom support 2 greatly, and back vent support 3 can be that fulcrum swings up and down with movable axis 31.Respectively be provided with an elastic shock attenuation 6 respectively between two bifurcateds 32 of shelf 4 and back vent support 3, elastic shock attenuation 6 is the damping that common motor bike uses.Cargo weight on the shelf 4 acts directly on the back vent support 3 by elastic shock attenuation 6, by the buffering of elastic shock attenuation 6, realizes the damping purpose in the driving process.Vehicle body that bears except that the car front-wheel and user's the part gravity, all the other gravity act on the shelf 4 by shelf connecting rod 5, advance through after the buffering of elastic shock attenuation 6 again to act on the trailing wheel, in order to strengthen the stability between shelf connecting rod 5 and the shelf 4, the stirrup 51 of the band iron structure that in the angle of shelf connecting rod 5 and shelf 4, also is provided with.The length of the big boom support 2 of cause extends to 420mm, the space of cushion is installed can extend forward, vertically being connected to one independently sits case strut bar 24 on the bottom bracket axle 25 of big boom support 2, sits the leather cushion that case strut bar 24 is used for a band tool box, increases the traveling comfort at seat.

Claims

1. heavy type electromobile frame, comprise: front fork connecting rod (1), big boom support (2), back vent support (3) and shelf (4), the forward and backward two ends of described big boom support (2) connect front fork connecting rod (1) and back vent support (3) respectively, it is characterized in that: be connected with the movable axis (31) that back vent support (3) is swung up and down between described back vent support (3) and big boom support (2); Be provided with shelf connecting rod (5) between described big boom support (2) and shelf (4), also be respectively equipped with elastic shock attenuation (6) between two bifurcateds (32) of shelf (4) and back vent support (3).

2. a kind of heavy type electromobile frame according to claim 1, it is characterized in that: described big boom support (2) is a basket body structure, it includes: at the bottom of basket mouth (21), basket wall (22) and the basket (23), basket mouth (21) is the stirrup structure, connects front fork connecting rod (1) and shelf connecting rod (5) respectively; (23) are the band iron structure at the bottom of basket wall (22) and the basket, and at the bottom of basket wall (22) captive joint basket mouth (21) and the basket (23), (23) also connect the bottom of front fork connecting rod (1) and the bottom of shelf connecting rod (5) respectively at the bottom of the basket.

3. a kind of heavy type electromobile frame according to claim 2 is characterized in that: (23) and shelf connecting rod (5) form for same band iron bending at the bottom of the described basket.

4. according to claim 1 or 2 or 3 described a kind of heavy type electromobile frames, it is characterized in that: the fixing welding of the top of described shelf connecting rod (5) and shelf (4) also is provided with the stirrup (51) of the band iron structure that is connected shelf connecting rod (5) and shelf (4) in the angle of shelf connecting rod (5) and shelf (4).

5. according to claim 1 or 2 or 3 described a kind of heavy type electromobile frames, it is characterized in that: the upper end of described elastic shock attenuation (6) is by coupling link and shelf (4) pivot bush unit, and the lower end of elastic shock attenuation (6) is by two bifurcateds (32) the top pivot bush unit of coupling link and back vent support (3).

6. according to claim 1 or 2 or 3 described a kind of heavy type electromobile frames, it is characterized in that: described elastic shock attenuation (6) is the motor cycle rear wheel spring shock absorption.

7. a kind of heavy type electromobile frame according to claim 3 is characterized in that: the thickness of forming the band iron that adopt (23) at the bottom of the basket wall (22) of described big boom support (2) and the basket is 8mm.

8. a kind of heavy type electromobile frame according to claim 3 is characterized in that: the length of described big boom support (2) is 420mm.

9. a kind of heavy type electromobile frame according to claim 1 is characterized in that: vertically be connected with on the described big boom support (2) and independently sit case strut bar (24).