CN217864527U - A folding electric vehicle frame - Google Patents

Abstract

The utility model relates to a folding electric vehicle frame, comprising a vehicle beam, a head tube, a seat tube and a rear fork, the head tube is fixed at the front end of the vehicle beam, and the included angle between the seat tube and the vehicle beam is towards the lower side of the vehicle front A controller installation box matching the shape of the included angle is installed at the position, and the bottom of the controller installation box is provided with a chain plate shaft installation hole and a chainstay hinge hole; using the triangle at the angle between the beam and the seat tube The installation structure of the controller is set in space, and the controller, the chain disc shaft installation hole and the hinge hole of the chainstay are integrated in it, which can not only strengthen the structural strength of the beam and seat tube, but also the chain disc shaft installation hole and the chainstay. There is no need to set additional hinge holes, which makes the frame structure more concise and portable.

Description

A folding electric vehicle frame

technical field

The utility model relates to the technical field of electric bicycles, in particular to a folding electric bicycle frame.

Background technique

Green travel is being advocated all over the world. Electric bicycles can effectively avoid air pollution and have become a convenient and easy short-distance transportation tool for green travel. As a means of transportation, electric bicycles face different road conditions and compact storage space requirements. The chain disc shaft installation tube on the current electric bicycle frame is usually directly fixed on the seat tube, and the controller box is separately installed at the angle between the seat tube and the vehicle beam, and the two are set separately. The appearance of this structure looks Messy, there may also be certain problems in structural strength; for example, "a kind of electric bicycle frame" disclosed by Chinese patent CN209023050U, its chain disc shaft installation tube is to be welded on the seat tube alone to be used for installing the chain disc shaft, and the controller box is then In addition, the setting is only used to install the controller alone, and the hinge tube of the chainstay is also a separate connection structure, which has the risk of breaking and falling off, and the structural strength is not high enough.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a folding electric vehicle frame, which uses the triangular space at the angle between the beam and the seat tube to set up the installation structure of the controller, and integrates the controller and the chain disc shaft in it. Holes (i.e. the prior art chain disc shaft mounting tube) and chainstay hinged holes (i.e. the prior art hinged tube of the chainstay), both can play the role of strengthening the structural strength of the car beam and seat tube, and also make The frame structure is simpler.

In the embodiment of the utility model, the following solutions are adopted: a frame of a folding electric vehicle, including a beam, a head tube, a seat tube and a rear fork, the head tube is fixed on the front end of the beam, and the seat tube and the beam face A controller installation box that matches the shape of the included angle is installed at the included angle on the lower side of the front direction. The triangular metal structure of the controller box can support the vehicle beam, making the angle structure between the seat tube and the vehicle beam more stable. It is stable and enhances the structural strength of the vehicle frame. The bottom of the controller installation box is provided with a chain disc shaft installation hole and a chainstay hinge hole.

In an embodiment of the present invention, a handle is provided on the upper side of the vehicle beam close to the seat tube, which is convenient for carrying after folding; a cup holder is provided on the front part of the upper side of the vehicle beam for placing a water bottle.

In an embodiment of the present invention, the front part and the rear part of the vehicle beam are connected by a folder with a locking buckle.

In one embodiment of the present invention, the rear fork includes U-shaped seat stays and chain stays, the front of the seat stays is connected to the seat tube, the front end of the chain stays is connected to the rear Lower fork hinge hole connection.

In an embodiment of the utility model, a rear seat frame is installed on the rear chain stay.

In an embodiment of the present invention, a license plate mounting frame is connected to the tail of the rear seat frame for mounting and fixing the license plate.

In one embodiment of the utility model, the front end of the rear seat frame is correspondingly locked in the middle of the chainstay, and the rear part of the rear seat frame is connected to the tail end of the chainstay through a Y-shaped support frame. Make the rear seat frame stronger and increase the bearing capacity.

In one embodiment of the present invention, the two tail ends of the seat stay are respectively connected to a shock absorber, and the other end of the shock absorber is connected to the corresponding tail end of the seat stay; the shock absorber is One of the shock absorbers, pneumatic shock absorbers, and hydraulic shock absorbers to improve the comfort of drivers.

In one embodiment of the present utility model, a battery installation box is provided on the rear side of the seat tube inside the rear fork for installing the battery of the electric vehicle.

In an embodiment of the utility model, the vehicle beam is provided with a wiring hole, and the circuit of the controller can be connected to the handlebar in the vehicle beam, so as to reduce the risk of being wet or soaked by rainwater.

Beneficial effects of the utility model: the utility model provides a folding electric vehicle frame. Compared with the prior art, the utility model has at least the following technical effects: the controller is set by using the triangular space at the angle between the vehicle beam and the seat tube The installation structure integrates the controller, the chain plate shaft installation hole and the hinge hole of the chainstay, and the triangular controller installation box fills the space at the angle between the vehicle beam and the seat tube, and plays a certain supporting role to prevent the vehicle from The angle between the beam and the seat tube is deformed under pressure, which can increase the structural strength of the beam and the seat tube; the mounting hole of the chain plate shaft, the hinge hole of the rear chainstay and the mounting box of the controller are integrally formed, and the structure is more solid, and there will be no In addition, if there is a fracture in the separate welding, it also saves space, making the frame more concise and beautiful, reducing the redundant structure and reducing the weight of the frame; at the same time, setting the shock absorber can improve the comfort of the driver on the bumpy road; Installing a folder with an anti-loose lock can prevent the folder from loosening and improve the safety when riding; the wiring inside the vehicle beam can protect the circuit and prevent the circuit from being short-circuited due to water immersion ;By integrating the chain plate shaft installation hole and the chainstay hinge hole on the installation structure of the controller, and the two are close to each other, the sprocket shaft installed at the rear end of the chainstay and the chain wheel shaft in the chain plate shaft installation hole Due to the shock absorption effect, the range of the distance between the two becomes smaller, which reduces the risk of the chain coming out and improves the smoothness of the chain rotation.

Description of drawings

Fig. 1 is a structural schematic diagram of a folding electric vehicle frame.

Fig. 2 is a schematic diagram of the structure of the controller installation box.

Fig. 3 is a structural schematic diagram of the chainstay.

Fig. 4 is a structural schematic diagram of the rear seat frame.

Fig. 5 is a schematic diagram of the connection relationship of the components of the rear fork.

Fig. 6 is a structural schematic diagram of the license plate installation frame.

Explanation of reference numbers:

1-beam, 2-head tube, 3-seat tube, 4-rear fork, 41-rear upper fork, 42-rear chain stay, 43-shock absorber, 5-controller installation box, 51-chain plate shaft Mounting hole, 52-chainstay hinge hole, 6-rear seat frame, 61-Y-type support frame, 62-license plate installation frame, 7-handle, 8-cup holder, 9-folder, 10-battery installation box .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Referring to Fig. 1 to Fig. 6, there is provided a foldable electric vehicle frame, including a beam 1, a head tube 2, a seat tube 3 and a rear fork 4, the head tube 2 is fixed on the front end of the vehicle beam 1, and the seat tube 3. A controller installation box 5 matching the shape of the included angle is installed at the angle between the vehicle beam 1 and the lower side of the vehicle front. The triangular metal structure of the controller installation box can support the vehicle beam 1, so that the seat The angle structure between the pipe 3 and the vehicle beam 1 is more stable, which enhances the overall structural strength of the vehicle frame. The bottom of the controller installation box 5 is provided with a chain disc shaft installation hole 51 and a chainstay hinge hole 52; the controller installation The upper space of the box 5 is used to install the controller of the electric vehicle; the rear fork 4 includes a U-shaped seat stay 41 and a seat stay 42, and the front portion of the seat stay 41 is connected with the seat tube 3, so that The front end of the rear chain fork 42 is connected to the hinge hole 52 of the rear chain fork 42; by integrating the chain plate shaft installation hole 51 and the hinge hole 52 of the rear chain fork 42 into the controller installation structure controller installation box 5, And the two are close to each other, so that the sprocket shaft installed in the tail end of the chainstay 42 and the sprocket shaft in the chain disc shaft installation hole 51 reduce the range of distance variation between the two due to the shock absorption effect, thereby reducing the probability of the chain coming out. , improving the smoothness of the chain rotation.

Please refer to FIG. 1 , in an embodiment of the present invention, a handle 7 is provided on the upper side of the vehicle beam 1 close to the seat tube 3 , which is convenient for carrying after folding.

Please refer to FIG. 1 , in an embodiment of the present invention, a cup holder 8 is provided on the front of the upper side of the vehicle beam 1 for placing a water bottle, and the cup holder 8 is locked on the vehicle beam 1 by connecting bolts.

Please refer to Fig. 1, in an embodiment of the present utility model, the front part and the rear part of the vehicle beam 1 are connected by a folder 9 with a lock to prevent the folder 9 from loosening when riding. There is equipment.

Please refer to Fig. 1 and Fig. 4 , in an embodiment of the present invention, a rear seat frame 6 is installed on the rear chainstay 42, which is convenient for carrying and placing articles.

Please refer to Fig. 1, Fig. 6, in one embodiment of the present utility model, the rear portion of described rear seat frame 6 is connected with license plate mounting frame 62, is used for installing and fixing the license plate, and license plate mounting frame 62 is directly welded on the rear portion of rear seat frame 6 lower surface.

Please refer to Fig. 1 and Fig. 4, in one embodiment of the present utility model, the front end of the rear seat frame 6 is correspondingly locked in the middle part of the chainstay 42, and the rear part of the rear seat frame 6 is supported by a Y shape. The frame is connected to the tail end of the chainstay 42 to make the rear seat frame 6 more firm and increase the bearing capacity.

Please refer to Fig. 1 and Fig. 5. In one embodiment of the present invention, the two tail ends of the seat stay 41 are respectively connected to a shock absorber 43, and the other end of the shock absorber 43 is connected to the seat stay The tail end corresponding to 42; the shock absorber is one of a shock absorber, a pneumatic shock absorber, and a hydraulic shock absorber, which improves the comfort of the driver.

Please refer to FIG. 1 , in an embodiment of the present invention, the rear side of the seat tube 3 is located inside the rear fork 4 and is provided with a battery installation box 10 for installing a battery of an electric vehicle.

In an embodiment of the present invention, the vehicle beam 1 is provided with a wiring hole, and the circuit of the controller can be connected to the relevant control buttons and instruments on the handlebar in the vehicle beam 1 to reduce the risk of being wet or soaked in water.

The utility model has the following working principles:

Utilize the triangular space at the angle between the car beam 1 and the seat tube 3 to set the installation structure of the controller, that is, the controller installation box 5, in which the controller, the chain disc shaft installation hole 51 and the hinge hole 52 of the chainstay 42 are integrated, and the triangle The controller installation box 5 fills the space at the lower angle between the beam 1 and the seat tube 3, plays a supporting role and prevents the connection between the beam 1 and the seat tube 3 from being deformed under pressure, and can increase the weight of the beam 1 and the seat tube. 3. The role of structural strength; the mounting hole 51 of the chain plate shaft and the hinge hole 52 of the chainstay 42 are integrally formed with the controller installation box 5. The structure is more firm, and the traditional structure of the bottom bracket tube and the hinge hole 52 of the chainstay 42 will not appear separately. Welding stress points are concentrated, and the situation where the strength is not high enough is broken, and the space is also saved, making the frame finishing structure more concise and beautiful; at the same time, a shock absorber 43 is arranged between the seat stay 42 and the seat stay 41, which can effectively It can play the role of cushioning and shock absorption, and improve the riding comfort of the driver on the bumpy road; setting the folder 9 with a lock can prevent the folder 9 from loosening, and improve the safety when riding; 1 The inner wiring can protect the circuit and prevent the circuit from being short-circuited due to water immersion; by integrating the chain plate shaft installation hole 51 and the rear chainstay 42 hinge hole 52 on the installation structure of the controller, and the two The two are close to each other, so that the distance between the sprocket shaft installed at the tail end of the chainstay 42 and the sprocket shaft in the chain disc shaft installation hole 51 is reduced due to the shock absorption effect, which reduces the risk of the chain coming out and improves The smoothness of the chain transmission.

A few points that should be explained are: first of all, in the description of this application, it should be explained that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, which can be mechanical connection or Electrical connection can also be the internal communication of two components, which can be directly connected. "Up", "Down", "Left", "Right", etc. are only used to indicate the relative positional relationship. When the absolute position of the described object changes , the relative position relationship may change.

Secondly: in the accompanying drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the usual design. Under the condition of no conflict, the same embodiment of the utility model and different embodiments can be used mutually. combination.

Finally, the above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model belong to the protection scope of the present utility model.

It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (10)

1. A folding electric vehicle frame, comprising a beam, a head tube, a seat tube and a rear fork, the head tube is fixed at the front end of the beam, and it is characterized in that: the seat tube and the vehicle beam are on the lower side towards the front of the car. A controller installation box matching the shape of the included angle is installed at the included angle, and the bottom of the controller installation box is provided with a chain disc shaft installation hole and a chainstay hinge hole. 2. A folding electric vehicle frame according to claim 1, characterized in that: a handle is provided on the upper side of the vehicle beam close to the seat tube; the front part of the upper side of the vehicle beam is provided with cup holder. 3. A folding electric vehicle frame according to claim 1, characterized in that: the front part and the rear part of the vehicle beam are connected by a folder with a locking buckle. 4. A folding electric vehicle frame according to claim 1, wherein the rear fork includes a U-shaped seat stay and a U-shaped seat stay, and the front part of the seat stay is in contact with the seat stay. The seat tube is connected, and the front end of the chainstay is connected with the hinge hole of the chainstay. 5. The frame of a folding electric vehicle according to claim 4, wherein a rear seat frame is installed on the rear chain stay. 6. A folding electric vehicle frame according to claim 5, wherein a license plate mounting frame is connected to the tail of the rear seat frame. 7. A folding electric vehicle frame according to claim 5, characterized in that: the front end of the rear seat frame extends to the middle of the corresponding chainstay and is locked; the rear seat frame lowers A Y-shaped support frame is provided to connect the tail end of the rear chain fork. 8. A folding electric vehicle frame according to claim 4, characterized in that: the two tail ends of the seat stays are respectively connected to a shock absorber, and the other end of the shock absorber is connected to the rear The end corresponding to the lower fork. 9 . The frame of a folding electric vehicle according to claim 1 , wherein a battery installation box is arranged on the rear side of the seat tube inside the rear fork. 10. The frame of a foldable electric vehicle according to claim 1, characterized in that: the vehicle beam is provided with a wiring hole.

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