Damping frame of bicycle

Abstract

The utility model discloses a bicycle damping frame which comprises an upper tube, the upper tube is of a flat structure design, a seat post is installed on the upper surface of the tail end of the upper tube, a rear vertical fork is fixedly connected to the lower surface of the tail end of the upper tube, an arc-shaped notch is formed between the top end of the rear vertical fork and the seat post, and a seat tube is fixedly connected to the position, located on the lower surface of the rear vertical fork, below the arc-shaped notch. According to the shock absorption structure, the impact effect of external force on the cushion can be effectively reduced, the external force is prevented from directly acting on the seat post through the seat tube, the external force can be effectively dispersed and damped, and the shock absorption effect of the cushion is good during actual riding. When the bicycle frame is used, a certain external force damping effect can be achieved without additionally arranging a damper, so that the structural complexity of the bicycle frame can be effectively reduced, the cost is reduced, meanwhile, additional structures are avoided, the overall weight of the bicycle frame can be effectively reduced, and the bicycle frame has the use effect that a bicycle is light and convenient to ride.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle frames, in particular to a shock-absorbing bicycle frame. Background Art

[0002] A bicycle, also known as a cycle or bicycle, is usually a small two-wheeled land vehicle. It is powered by pedaling and is a green and environmentally friendly means of transportation.

[0003] Bicycles can be used as an environmentally friendly means of transportation for travel and commuting; more and more people use bicycles as fitness equipment for cycling exercises and cycling tours; cycling itself is also a sport, including road cycling races, mountain biking races, track cycling races, stunt cycling races, etc.

[0004] When a bicycle is manufactured, its frame is an important body structure. Traditional bicycle frames mostly use a vertical direct connection between the seat tube and the seat post. When a frame with such a structural design encounters a bumpy road, the external force generated by the bump will be directly transmitted to the seat post cushion through the seat tube, causing the rider's buttocks to suffer a large external force impact, resulting in poor external force shock absorption effect, affecting the riding experience. Therefore, the utility model proposes a bicycle shock-absorbing frame. Utility Model Content

[0005] The purpose of the present utility model is to provide a shock-absorbing bicycle frame to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a bicycle shock-absorbing frame, comprising an upper tube, the upper tube adopting a flat structural design, a seat post mounted on the upper surface of the rear end of the upper tube, a rear fork fixedly connected to the lower surface of the rear end of the upper tube, an arc-shaped notch provided between the top end of the rear fork and the seat post, a seat tube fixedly connected below the arc-shaped notch and located on the lower surface of the rear fork, and a down tube fixedly connected to the bottom end of the seat tube.

[0007] Preferably, the down tube and the rear seat fork are fixedly connected via a chain stay.

[0008] Preferably, a head tube is fixedly connected between the front end of the upper tube and the lower tube.

[0009] Preferably, a front fork is rotatably mounted in the head tube.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The shock-absorbing bicycle frame of the present invention has a top end of the seat tube directly connected to the upper end of the rear fork, and the top end of the rear fork is connected to the top tube. With this structural design, when the frame is subjected to force due to bumps, the upward external force generated by the bumps can be transmitted upward through the seat tube. When the upward external force of the seat tube is transmitted to the top end, the external force acts on the rear fork and is transmitted and dispersed to the rear end and the top tube through the rear fork. The external force generated by the bumps does not directly act on the seat tube. The arc-shaped cross-section notch can provide a gap blocking effect for the external force transmission, so that the external force is dispersed on the rear fork and the top tube, and the rear fork and the top tube are used as a force-bearing structure for the bump external force.

[0012] By conducting and dispersing external forces, and coordinating the flat force-bearing structure design of the arc-shaped slot and the upper tube, the impact effect of external forces on the seat cushion can be effectively reduced, and the external forces are prevented from directly acting on the seat post through the seat tube. The external forces can be effectively dispersed and shock-absorbing, and a good seat cushion shock-absorbing effect can be achieved during actual riding. The utility model directly improves the structure of the frame, and a certain external force shock-absorbing effect can be achieved without adding additional shock absorbers during use, thereby effectively reducing the complexity of the frame structure and reducing costs. At the same time, avoiding the addition of additional structures can effectively reduce the overall weight of the frame, achieving the effect of light bicycle riding, and the overall structure is simple, suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the rear end of a bicycle frame according to an embodiment of the present utility model;

[0014] Figure 2 Schematic diagram of the front end of a bicycle frame according to an embodiment of the present invention

[0015] In the figure: 1. Top tube; 2. Seatpost; 3. Rear stay; 4. Curved notch; 5. Seat tube; 6. Chain stay; 7. Down tube; 8. Head tube; 9. Front fork. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0019] See also Figure 1-2 The utility model provides an embodiment: a bicycle shock-absorbing frame, including an upper tube 1, the upper tube 1 adopts a flat structure design, a seat post 2 is installed on the upper surface of the rear end of the upper tube 1, a rear fork 3 is fixedly connected to the lower surface of the rear end of the upper tube 1, an arc-shaped notch 4 is provided between the top end of the rear fork 3 and the seat post 2, a seat tube 5 is fixedly connected below the arc-shaped notch 4 and on the lower surface of the rear fork 3, and a lower tube 7 is fixedly connected to the bottom end of the seat tube 5.

[0020] Furthermore, the down tube 7 is fixedly connected to the rear seat fork 3 via the chain stay 6, wherein a head tube 8 is fixedly connected to the front end of the top tube 1 and between the down tube 7;

[0021] Furthermore, a front fork 9 is rotatably mounted in the head tube 8 .

[0022] According to the above instructions, refer to the appendix of the manual. Figure 1 As shown, the top tube 1, the seat post 2, the rear fork 3, the seat tube 5, the rear chain stay 6, the down tube 7, the head tube 8 and the front fork 9 together constitute the bicycle frame of the present invention;

[0023] In traditional bicycle frames, the seat tube and the seat post are mostly designed with a structural design of direct connection between the upper and lower parts. However, in the shock-absorbing bicycle frame of the present invention, the top end of the seat tube 5 is directly connected to the upper end of the rear fork 3, and the top end of the rear fork 3 is connected to the top tube 1. With this structural design, when the frame is subjected to force due to bumps, the upward external force generated by the bumps can be transmitted upward through the seat tube 5. When the upward external force of the seat tube 5 is transmitted to the top end, the external force will act on the rear fork 3 and be transmitted and dispersed to its tail end and the top tube 1 through the rear fork 3. The external force generated by the bumps will not directly act on the seat tube 2. The arc-shaped cross-section notch can provide a notch blocking effect for the external force transmission, so that the external force is dispersed on the rear fork 3 and the top tube 1. The rear fork 3 and the top tube 1 are used as a force-bearing structure for the bumpy external force, and have the effect of dispersing and reducing shock.

[0024] Working principle: Users can install common bicycle structures such as sprockets, wheels and handlebars on the bicycle frame of the utility model through conventional methods to ensure the normal use of the frame;

[0025] The bicycle shock-absorbing frame of the present invention has a top end of the seat tube 5 directly connected to the upper end of the rear fork 3, and the top end of the rear fork 3 is connected to the top tube 1. With this structural design, when the frame is subjected to force due to bumps, the upward external force generated by the bumps can be transmitted upward through the seat tube 5. When the upward external force of the seat tube 5 is transmitted to the top end, the external force will act on the rear fork 3 and be transmitted and dispersed to the rear end and the top tube 1 through the rear fork 3. The external force generated by the bumps will not directly act on the seat tube 2. The arc-shaped cross-section notch can provide a gap blocking effect for the external force transmission, so that the external force is dispersed on the rear fork 3 and the top tube 1, and the rear fork 3 and the top tube 1 are used as a force-bearing structure for the bump external force.

[0026] By conducting and dispersing external forces, and coordinating the flat force-bearing structure design of the arc-shaped notch 4 and the upper tube 1, the impact effect of external forces on the seat cushion can be effectively reduced, and the external force is prevented from directly acting on the seat post 2 through the seat tube 5. The external force can be effectively dispersed and shock-absorbing, and a good seat cushion shock-absorbing effect can be achieved during actual riding. The utility model directly improves the structure of the frame, and a certain external force shock-absorbing effect can be achieved without adding additional shock absorbers during use, thereby effectively reducing the complexity of the frame structure and reducing costs. At the same time, avoiding the addition of additional structures can effectively reduce the overall weight of the frame, achieving the effect of lightweight bicycle riding, and the overall structure is simple, suitable for popularization and use.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A bicycle shock-absorbing frame, comprising an upper tube (1), characterized in that: The upper tube (1) adopts a flat structural design, a seat post (2) is installed on the upper surface of the rear end of the upper tube (1), a rear fork (3) is fixedly connected to the lower surface of the rear end of the upper tube (1), an arc-shaped notch (4) is provided between the top end of the rear fork (3) and the seat post (2), a seat tube (5) is fixedly connected below the arc-shaped notch (4) and located on the lower surface of the rear fork (3), and a lower tube (7) is fixedly connected to the bottom end of the seat tube (5).

2. A shock-absorbing bicycle frame according to claim 1, characterized in that: The lower tube (7) is fixedly connected to the rear stand fork (3) via the rear lower fork (6).

3. The shock-absorbing bicycle frame according to claim 1, characterized in that: A head tube (8) is fixedly connected between the front end of the upper tube (1) and the lower tube (7).

4. The shock-absorbing bicycle frame according to claim 3, characterized in that: A front fork (9) is rotatably mounted in the head tube (8).

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