A vehicle frame structure

Abstract

The application discloses a kind of frame structures. Including frame body, the frame body is configured with arch unit, at least two parts of the arch unit is positioned on the frame body. The application utilizes the characteristics of arch structure, and reasonably designs the structure layout of rear clothes hanger. Only one additional rod is needed to realize the reliable positioning of mudguard and rear clothes hanger. The frame structure is more simple and beautiful, and the support strength of mudguard and rear clothes hanger is higher. The arch member is hidden inside the mudguard, further improving the simplicity and beauty of the frame structure.

Description

Technical Field

[0001] This invention relates to the field of vehicle frame technology, and in particular to a vehicle frame structure. Background Technology

[0002] Bicycles are a common means of transportation, and can be divided into bicycles powered by pedals and electric bicycles powered by electricity.

[0003] To accommodate passengers, bicycles typically have a rear clothes rack at the back. Existing rear clothes rack layouts include... Figure 9 As shown, the rear coat rack 91 is connected to two sets of support rods 92. These support rods 92 are only used to effectively support the rear coat rack 91. Generally, there are two corresponding support rods on each side of the tire. Meanwhile, the rear wheel mudguard 93 also requires a separate connecting rod structure 94 for positioning the mudguard. Therefore, from... Figure 9 From an angle perspective, excluding the two frame tubes 95 on the left side, there are three other rods on one side of the bicycle (two support rods 92 and one connecting rod structure 94). Visually, this type of frame is rather cluttered and not simple enough.

[0004] For example, in existing publicly available patent document CN203623868U, there is a rear frame structure for an electric bicycle, which, compared to... Figure 9 The only difference between the styles shown is the placement of the two sets of support rods connected to the back hanger; the number is the same, and they still look rather cluttered and not simple enough.

[0005] In today's society, the simplicity of a product is of great importance to its added value. How to make a product simpler while maintaining its existing functions is a technical problem that needs to be solved. Therefore, the applicant has filed this application. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing a frame structure that, while retaining two frame tubes, effectively supports the mudguard and rear rack with only one support rod, resulting in a simpler bicycle frame.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A vehicle frame structure includes a frame body, on which an arched unit is disposed, and at least two portions of the arched unit are positioned on the frame body.

[0009] In the above scheme, preferably, the frame body includes a first positioning unit connected to the front of the arched unit and a second positioning unit connected to the rear of the arched unit.

[0010] In the above scheme, preferably, the frame body includes a first positioning unit, a second positioning unit, and a rear rack, wherein the first positioning unit is connected to the front of the arched unit to form a first positioning point;

[0011] The second positioning unit is connected to the rear of the arched unit to form a second positioning point;

[0012] The back hanger is positioned above the arched unit and connected to at least one part of the arched unit, forming a third positioning point.

[0013] In the above scheme, preferably, the third positioning point is located between the first positioning point and the second positioning point;

[0014] One end of the rear coat rack is welded, integrally formed, or fixed to the upright tube of the frame and / or the first positioning unit by fasteners.

[0015] One end of the second positioning unit is fixed to the inner wall of the arched unit.

[0016] In the above scheme, preferably, one end of the first positioning unit is welded, integrally formed, or fixed to the upright tube of the frame by fasteners.

[0017] In the above scheme, preferably, the first positioning unit is a rod-shaped member that is inclined forward from the rear end of the frame body, and the second positioning unit is a rod-shaped member that is inclined backward from the rear end of the frame body.

[0018] In the above scheme, preferably, the first positioning unit includes a first rod-shaped member arranged inclined forward from the rear end of the frame body and a second rod-shaped member fixed on the first rod-shaped member, and at least one part of the arched unit is positioned at the second rod-shaped member;

[0019] The second positioning unit is a third rod-shaped component that is arranged at an angle from the rear end of the main frame body toward the rear.

[0020] In the above scheme, preferably, the first positioning unit includes two first rod-shaped members arranged inclined forward from the rear end of the frame body and a second rod-shaped member with both ends fixed to the two first rod-shaped members respectively. The two first rod-shaped members are respectively arranged on both sides of the arched unit, and at least one part of the arched unit is positioned at the second rod-shaped member.

[0021] The second positioning unit includes two third rod-shaped members that are arranged inclined from the rear end of the frame body toward the rear, and the two third rod-shaped members are respectively arranged on both sides of the arched unit.

[0022] In the above scheme, preferably, one end of the first positioning unit and one end of the second positioning unit intersect on the rear fork of the frame body.

[0023] In the above scheme, preferably, one end of the first rod-shaped member is welded, integrally formed, or fixed to the upright tube of the frame body by fasteners, and the other end is welded, integrally formed, or fixed to the rear fork of the frame body by fasteners.

[0024] The two ends of the second rod-shaped member are welded, integrally formed, or fixed to the two first rod-shaped members by fasteners;

[0025] One end of the third rod-shaped component is welded, integrally formed, or fixed to the rear fork of the frame body by fasteners, and the other end is welded, integrally formed, or fixed to the arched unit by fasteners.

[0026] In the above scheme, preferably, the arched unit is an arched mudguard.

[0027] In the above scheme, preferably, the arched unit is an arched component.

[0028] In the above scheme, preferably, the arched unit includes an arched mudguard and an arched component disposed inside the arched mudguard. The second positioning unit is welded to one end, integrally formed, or fixed to the rear of the arched component by fasteners, and supports the arched mudguard through the arched component and / or itself.

[0029] In the above scheme, preferably, the arched component is made of metal.

[0030] In the above scheme, preferably, the middle part of the arched component is positioned on the back hanger, and the front part is positioned on the first positioning unit;

[0031] Two parts on the arched mudguard correspond to two positioning positions of the arched component, with its front end positioned at the bottom of the vehicle frame body.

[0032] In the above scheme, preferably, one side wall of the arched component is integrally attached to the inner wall of the arched mudguard.

[0033] In the above scheme, preferably, the arched unit includes an arched mudguard and an arched component disposed inside the arched mudguard. The second positioning unit is welded to one end, integrally formed, or fixed to the rear of the arched component by fasteners, and supports the arched mudguard through the arched component and / or itself.

[0034] In the above scheme, preferably, the arched component is made of metal.

[0035] In the above scheme, preferably, the middle part of the arched member is positioned on the back hanger, and the front part is positioned on the second rod-shaped member;

[0036] Two parts on the arched mudguard correspond to two positioning positions of the arched component, with its front end positioned at the bottom of the vehicle frame body.

[0037] In the above scheme, preferably, one side wall of the arched component is integrally attached to the inner wall of the arched mudguard.

[0038] The beneficial effects of this invention are:

[0039] This invention utilizes the characteristics of an arched structure to rationally design the structural layout of the rear coat rack. Only one additional rod is needed to achieve reliable positioning of the mudguard and the rear coat rack. This not only makes the frame structure simpler and more aesthetically pleasing, but also increases the support strength of the mudguard and the rear coat rack.

[0040] The arched components are concealed within the mudguards, further enhancing the simplicity and aesthetics of the chassis structure. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the installation state of the present invention.

[0042] Figure 2 This is a schematic diagram showing the cooperation between the second positioning unit, the arched component, and the mudguard of the present invention.

[0043] Figure 3 This is an exploded view of the second positioning unit, the arched component, and the mudguard of the present invention.

[0044] Figure 4 This is a schematic diagram showing the cooperation between the second positioning unit and the arched component of the present invention.

[0045] Figure 5 This is a schematic diagram of the mudguard of the present invention.

[0046] Figure 6 This is a schematic diagram showing the installation position of the arched unit on the vehicle frame of the present invention.

[0047] Figure 7 for Figure 1 Enlarged diagram of point D in the middle.

[0048] Figure 8 This is a schematic diagram showing the installation position of the second positioning unit of the present invention.

[0049] Figure 9 This is a schematic diagram of an existing style in the background art. Detailed Implementation

[0050] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1:

[0051] See Figures 1-8 A frame structure includes a frame body 1, on which an arched unit is mounted. The frame body 1 includes a first positioning unit, a second positioning unit, and a rear rack 2.

[0052] like Figure 2-5 As shown, the arched unit includes an arched mudguard 31 and an arched member 32 disposed on the inner side of the arched mudguard 31. In one embodiment, one side wall of the arched member 32 is integrally attached to the inner wall of the arched mudguard 31, so as to make the force distribution more uniform.

[0053] As one option for the material of the arch member 32, it is made of metal to ensure its strength.

[0054] In this embodiment, the first positioning unit includes two first rod-shaped members 41 arranged from the rear end of the frame body 1 in a forward inclined direction (e.g., from rear to front and upward), and a second rod-shaped member 42 with both ends fixed to the two first rod-shaped members 41 respectively. The two first rod-shaped members 41 are respectively arranged on both sides of the arched unit (both sides of the wheel).

[0055] There are various ways to fix the second rod-shaped member 42 and the first rod-shaped member 41, such as welding the two ends of the second rod-shaped member 42, forming it as a whole, or fixing it to the two first rod-shaped members 41 by fasteners.

[0056] In this embodiment, one end of the first rod-shaped member 41 is bent and extended to be connected to the rear rack 2. The connection between the two can be welding, integral molding, or fixed connection by fasteners. The connection point is fixed to the upright tube 11 of the frame body 1. The fixing method between the connection point and the upright tube 11 of the frame body 1 can be welding, integral molding, or fixed connection by fasteners.

[0057] Thus, one end of the back hanger 2 and one end of the first rod-shaped member 41 were positioned.

[0058] In this embodiment, the other end of the first rod-shaped member 41 is fixed to the rear fork 12 of the frame body 1. The fixing method can also be welding, integral molding, or fixed connection by fasteners.

[0059] This locates the other end of the first rod-shaped member 41.

[0060] In this embodiment, the second positioning unit includes two third rod-shaped members 51 that are arranged from the rear end of the frame body 1 in a backward direction (e.g., from front to back in an upward direction). The two third rod-shaped members 51 are respectively arranged on both sides of the arched unit.

[0061] One end of the third rod-shaped member 51 is fixed to the rear fork 12 of the frame body 1. This fixing method can be welding, integral molding, or fastening with fasteners. To reduce processing difficulty and facilitate installation, the third rod-shaped member 51 can be designed so that this end is fixed to the rear fork 12 of the frame body 1 using fasteners. Figure 8 As shown, a corresponding mounting position 121 is provided on the rear fork 12 of the frame body 1, and the third rod-shaped member 51 is locked by fasteners after its end is assembled into the corresponding mounting position 121.

[0062] Thus, one end of the third rod-shaped member 51 was located.

[0063] In this embodiment, one end of the first rod-shaped member 41 intersects with one end of the third rod-shaped member 51 on the rear fork 12 of the frame body 1, such as... Figure 1 As shown.

[0064] The other end of the third rod-shaped member 51 is fixed to the arched member 32. The fixing method can be welding, integral molding, or fixing with fasteners, with welding and integral molding being preferred. Figure 3 , Figure 4 As shown.

[0065] Thus, the other end of the third rod-shaped member 51 was located.

[0066] Based on the above description of the fit between the arched member 32 and the arched mudguard 31, after the arched member 32 is installed inside the arched mudguard 31, the third rod-shaped member 51 can also provide support for the arched mudguard 31.

[0067] In this embodiment, for the assembly of the arched unit, the front part of the arched unit is connected to the second rod-shaped member 42, serving as the first positioning point 61; the rear part of the arched unit is connected to the third rod-shaped member 51, serving as the second positioning point 62; and the middle part of the arched unit is connected to the back hanger 2, serving as the third positioning point 63. Simultaneously, the back hanger 2 is located above the arched unit, as shown below. Figure 1 As shown.

[0068] In this embodiment, the third positioning point 63 is located between the first positioning point 61 and the second positioning point 62.

[0069] For the first positioning point 61, as one embodiment, the arched mudguard 31 and the arched member 32 are provided with first holes 33 at corresponding positions, and the second rod-shaped member 42 has a corresponding first mounting hole 43. The front ends of the arched mudguard 31 and the arched member 32 are fixed together to the second rod-shaped member 42 by fasteners.

[0070] For the third positioning point 63, as one embodiment, the arched mudguard 31 and the arched component 32 are provided with second holes 34 at corresponding positions, and the rear hanger 2 has corresponding second mounting holes 21. The arched mudguard 31 and the arched component 32 are fixed together at the rear hanger 2 by fasteners.

[0071] This allowed us to locate the other end of the back hanger 2.

[0072] As mentioned above, the second positioning point 62 is mainly supported by the third rod-shaped member 51 in the form of a top brace against the arched mudguard 31, and relies on its connection with the arched member 32 to at least bear part of the pressure at the rear hanger 2, thus forming a positioning function.

[0073] In this embodiment, the first rod-shaped member 41, the third rod-shaped member 51, and the rear rack 2 are arranged in a triangular shape and combined with an arched structure. By utilizing the ability of the arched structure to disperse pressure downward and outward, a simple and high-strength frame structure is obtained.

[0074] To improve the positioning effect of the arched mudguard 31, in this embodiment, the front end of the arched mudguard 31 is positioned at the bottom of the frame body 1, such as... Figure 1 As shown, specifically, the front end of the arched mudguard 31 has a third hole 35, and the fastener passes through the third hole 35 and is installed at the bottom of the frame body 1. Example 2:

[0075] The difference between this embodiment and embodiment one is that the third rod-shaped member 51 is not connected to the back hanger 2, but all other aspects are the same.

[0076] See Figures 1-8 In this embodiment, one end of the third rod-shaped member 51 is fixed to the rear fork 12 of the frame body 1, and the other end is fixed to the riser 11 of the frame body 1. One end of the rear rack 2 is fixed to the riser 11 of the frame body 1. The above fixing methods can be welding, integral molding or fixing by fasteners. Example 3:

[0077] The difference between this embodiment and Embodiment 1 and Embodiment 2 is that it does not have a first positioning point 61, but all other aspects are the same.

[0078] See Figures 1-8 In this embodiment, the rear coat rack 2 is fixed to the frame body 1, and the second positioning point 62 and the third positioning point 63 are retained. In this form, the structural support strength is lower than that in Embodiment 1 and Embodiment 2, but it can be used to support lighter items or human bodies. Example 4:

[0079] The difference between this embodiment and Embodiment 1 and Embodiment 2 is that it does not have the second rod-shaped member 42, but all other aspects are the same.

[0080] See Figures 1-8 In this embodiment, the first positioning unit is only the first rod-shaped member 41 that is inclined forward from the rear end of the frame body 1. The number of the first rod-shaped members 41 can be selected according to actual needs. The arched unit is directly fixed to the first rod-shaped member 41. The fixing method can be welding, integral molding or fixed connection by fasteners. The above connection position is used as the first positioning point 61. Example 5:

[0081] The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the arched unit refers only to the arched mudguard 31, while the rest are the same.

[0082] See Figures 1-8 In this embodiment, the first rod-shaped member 41 or the second rod-shaped member 42 is fixedly connected to the front part of the arched mudguard 31 as the first positioning point 61; the middle part of the arched mudguard 31 is fixedly connected to the rear coat rack 2 as the third positioning point 63; and the third rod-shaped member 51 is fixed to the inner wall of the rear end of the arched mudguard 31 as the second positioning point 62. Example 6:

[0083] The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the arched unit refers only to the arched component 32, while the rest are the same.

[0084] See Figures 1-8 In this embodiment, the structural member 32 is not a mudguard component, but only a support component. The first rod-shaped member 41 or the second rod-shaped member 42 is fixedly connected to the front part of the arched member 32 as the first positioning point 61; the middle part of the arched member 32 is fixedly connected to the rear coat rack 2 as the third positioning point 63; and the third rod-shaped member 51 is fixed to the rear end of the arched member 32 as the second positioning point 62.

[0085] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A frame structure comprising a frame body, characterized in that: the frame body comprises a first positioning unit, a second positioning unit and a rear carrier; the frame body is provided with an arched unit, at least two parts of the arched unit are positioned on the frame body; the arched unit comprises an arched fender and an arched member arranged inside the arched fender, one end of the second positioning unit is welded, integrally formed or fixed on the rear part of the arched member by a fastener, and the arched fender is supported by the arched member and / or itself; the front part of the arched member is positioned on the first positioning unit.

2. A frame structure according to claim 1, characterized in that: the frame body comprises the first positioning unit connected to the front part of the arched unit and the second positioning unit connected to the rear part of the arched unit.

3. A frame structure according to claim 1, characterized in that: the first positioning unit is connected to the front part of the arched unit to form a first positioning point; the second positioning unit is connected to the rear part of the arched unit to form a second positioning point; the rear carrier is arranged above the arched unit and connected to at least one part of the arched unit to form a third positioning point.

4. A vehicle frame structure according to claim 3, characterized in that: the third positioning point is located between the first positioning point and the second positioning point; one end of the rear carrier is welded, integrally formed or fixed on the riser of the frame and / or the first positioning unit by a fastener; one end of the second positioning unit is fixed on the inner wall of the arched unit.

5. A frame structure according to any one of claims 2-4, characterized in that: one end of the first positioning unit is welded, integrally formed or fixed on the riser of the frame by a fastener.

6. A frame structure according to any one of claims 2-4, characterized in that: the first positioning unit is a rod-shaped member arranged obliquely from the tail end of the frame body to the front, and the second positioning unit is a rod-shaped member arranged obliquely from the tail end of the frame body to the rear.

7. A frame structure according to any one of claims 2-4, characterized in that: the first positioning unit comprises a first rod-shaped member arranged obliquely from the tail end of the frame body to the front and a second rod-shaped member fixed on the first rod-shaped member, and at least one part of the arched unit is positioned at the second rod-shaped member; the second positioning unit is a third rod-shaped member arranged obliquely from the tail end of the frame body to the rear.

8. A frame structure according to any one of claims 2-4, characterized in that: the first positioning unit comprises two first rod-shaped members arranged obliquely from the tail end of the frame body to the front and a second rod-shaped member fixed on both ends of the two first rod-shaped members, and the two first rod-shaped members are arranged on both sides of the arched unit, and at least one part of the arched unit is positioned at the second rod-shaped member; the second positioning unit comprises two third rod-shaped members arranged obliquely from the tail end of the frame body to the rear, and the two third rod-shaped members are arranged on both sides of the arched unit.

9. A frame structure according to any one of claims 2-4, characterized in that: one end of the first positioning unit intersects one end of the second positioning unit on the rear fork of the frame body.

10. A frame structure according to claim 8, characterized in that: one end of the first rod-shaped member is welded, integrally formed or fixed on the riser of the frame body by a fastener, and the other end is welded, integrally formed or fixed on the rear fork of the frame body by a fastener; both ends of the second rod-shaped member are welded, integrally formed or fixed on the two first rod-shaped members by fasteners; One end of the third rod-shaped member is welded, integrally formed or fixed by a fastener to the rear fork of the frame body, and the other end is welded, integrally formed or fixed by a fastener to the arch-shaped unit.

11. A frame structure according to claim 1, characterized in that: The arch-shaped unit is an arch-shaped fender.

12. A frame structure according to claim 1, characterized in that: The arch-shaped unit is an arch-shaped member.

13. A frame structure according to claim 1 or 12, characterized in that: The material of the arch-shaped member is metal.

14. The frame structure of claim 1, wherein: The middle part of the arch-shaped member is positioned on the rear hanger. Two parts of the arch-shaped fender are consistent with the two positioning positions of the arch-shaped member, and the front end is positioned on the bottom of the frame body.

15. The frame structure of claim 1, wherein: The side wall of the arch-shaped member is integrally attached to the inner wall of the arch-shaped fender.

16. The frame structure of claim 8, wherein: The arch-shaped unit comprises an arch-shaped fender and an arch-shaped member arranged inside the arch-shaped fender, one end of the second positioning unit is welded, integrally formed or fixed by a fastener to the rear part of the arch-shaped member, and the arch-shaped fender is supported by the arch-shaped member and / or the second positioning unit itself.

17. A vehicle frame structure according to claim 16, wherein: The material of the arch-shaped member is metal.

18. A frame structure according to claim 16, characterized in that: The middle part of the arch-shaped member is positioned on the rear hanger, and the front part is positioned on the second rod-shaped member. Two parts of the arch-shaped fender are consistent with the two positioning positions of the arch-shaped member, and the front end is positioned on the bottom of the frame body.

19. A frame structure according to claim 16, wherein: The side wall of the arch-shaped member is integrally attached to the inner wall of the arch-shaped fender. The arch-shaped member is an arch-shaped member.

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