High-position-turning-point and low-position-series-connection shock-absorbing frame

Abstract

The utility model discloses a high-position turning point low-position series connection shock-proof frame, which comprises a front tripod, a rear tripod, a swing arm support, a swing arm connecting rod, a shock absorber and a guide wheel, the front tripod comprises two upright middle pipes arranged side by side, the upper end of the rear tripod is connected with the upper ends of the upright middle pipes through hinges, and the lower end of the rear tripod is connected with the swing arm connecting rod. The guide wheel is arranged at the position, close to the upper end, of the rear tripod, the swing arm connecting rod is arranged between the two vertical middle pipes, the hinged point position of the swing arm connecting rod is connected with the vertical middle pipes in a hinged mode, and the lower end of the swing arm connecting rod is connected with the front end of the swing arm support in a hinged mode. The rear end of the swing arm support is connected with the lower end of the rear tripod in a hinged mode, a seat body of the shock absorber is connected with the front tripod in a hinged mode, and a telescopic rod of the shock absorber is connected with the upper end of the swing arm connecting rod in a hinged mode. The shock absorber can be efficiently compressed, bumping can be relieved, and mutual interference between the chain and the rear tripod can be avoided.

Description

Technical Field

[0001] The utility model relates to a bicycle frame, in particular to a shock-absorbing frame with a high-position pivot point and a low-position series connection. Background Art

[0002] The traditional suspension vehicle structure uses the overall rear triangle of the frame to push the connecting piece connecting the front and rear triangles of the frame to apply a certain stress to the front triangle of the frame. After the connecting piece is subjected to the force, it rotates in the positive direction (applying force in the direction of the front triangle of the frame) and transmits it to the shock absorber. The front and rear triangles of the frame are displaced through the principle of shock absorber compression, thereby reducing bumps from the ground and improving riding comfort.

[0003] The center of the pivot point of an ordinary shock-absorbing frame is generally designed to be behind the five-way pivot of the frame, the pivot point is located at a low position of the frame, and the shock absorber connecting rod is at a high position. For example, the Chinese patent publication with application number 202221935584.8 records a shock-absorbing frame with a chain guide wheel device, the frame rear upper fork is connected to the shock absorber connecting plate, the rear lower fork is connected to the rear fork fixing seat behind the middle tube, the upper and lower forks are split structures, and the frame pivot point is located behind the lower end of the middle tube. According to the structural characteristics of the frame, its guide wheel device is placed on the right lower fork connecting rod, and the upper fork is connected to the connecting rod. After the rear triangle upper fork is subjected to force, the pivot point of the support seat below the middle tube is used as the center of the circle. The connecting rod is pressed forward to compress the shock absorber to achieve the purpose of frame shock absorption. However, this type of suspension frame has the chain guide wheel located near the lower end of the frame, which makes it easy for the chain and the rear triangle to interfere with each other. When the chain touches the tripod, scratches may easily occur, especially in bumpy riding conditions such as mountainous terrain. This not only affects normal riding, but also easily causes danger. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a shock-absorbing frame with a high-position pivot point and a low-position series connection, which can effectively compress the shock absorber, reduce the bumps, and avoid the interference between the chain and the rear triangle.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0006] A high-pivot and low-position series-connected shock-absorbing frame, comprising a front tripod, a rear tripod, a swing arm support, a swing arm connecting rod, a shock absorber and a guide wheel, wherein the front tripod comprises two upright middle tubes arranged side by side, the upper end of the rear tripod is hingedly connected to the upper ends of the upright middle tubes, the guide wheel is arranged at a position close to the upper end of the rear tripod, the swing arm connecting rod is arranged between the two upright middle tubes, and the hinge point of the swing arm connecting rod is hingedly connected to the upright middle tubes, the lower end of the swing arm connecting rod is hingedly connected to the front end of the swing arm support, the rear end of the swing arm support is hingedly connected to the lower end of the rear tripod, the seat body of the shock absorber is hingedly connected to the front tripod, and the telescopic rod of the shock absorber is hingedly connected to the upper end of the swing arm connecting rod.

[0007] Preferably, the front end of the rear tripod is provided with two forward extension brackets, and the upper ends of the forward extension brackets are hingedly connected to the upper end of the upright middle tube.

[0008] Preferably, the rear end of the swing arm support is arranged between the two forward extension brackets, and the rear end of the swing arm support is hingedly connected to the two forward extension brackets.

[0009] Preferably, the distance between the hinge point of the swing arm connecting rod and the upper end of the swing arm connecting rod is greater than the distance between the hinge point of the swing arm connecting rod and the lower end of the swing arm connecting rod.

[0010] Preferably, a fixed shaft is provided on the side of the forward extension bracket, and the guide wheel is sleeved on the fixed shaft and the two are rotatably matched.

[0011] Preferably, a guide wheel cover is fixed to the upper end of the forward extension bracket, and the guide wheel cover covers the top of the guide wheel with a gap therebetween.

[0012] Preferably, a shock absorber bracket is provided on the lower tube of the front tripod, and the seat body of the shock absorber is hingedly connected to the shock absorber bracket.

[0013] Preferably, the swing arm support is a U-shaped support, and the lower end of the swing arm connecting rod is located on the inner side of the swing arm support.

[0014] In the high-pivot and low-position series-connected shock-absorbing frame disclosed by the utility model, the front tripod and the rear tripod form the basic framework of the frame, and the upper end of the rear tripod is hingedly connected to the upper end of the upright middle tube. On this basis, a swing arm support, a swing arm connecting rod and a shock absorber are further provided between the rear tripod and the front tripod, wherein the swing arm connecting rod is hingedly connected to the upright middle tube, the swing arm support is hingedly connected between the lower end of the rear tripod and the lower end of the swing arm connecting rod, and the shock absorber is hingedly connected between the front tripod and the upper end of the swing arm connecting rod. Based on the above connection Dynamic relationship, when the upright middle tube is subjected to force, the rear tripod undergoes angular displacement with the upper end as the turning point, the rear tripod drives the swing arm support to move backward, the swing arm support drives the rear end of the swing arm connecting rod to shift backward, the front end of the swing arm connecting rod applies pressure to the shock absorber, the shock absorber is deformed and compressed after being subjected to the pressure, the shock absorption effect of the frame is obvious, thereby efficiently starting the shock absorbing function of the frame and reducing the bumpy feeling during riding. At the same time, the utility model arranges the guide wheel at a position close to the upper end of the rear tripod, which can effectively avoid interference between the chain and the rear triangle, thereby improving the overall performance of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded view of the utility model's high-pivot-point low-tandem shock-absorbing frame;

[0016] Figure 2 This is a comparison diagram of the state changes of the shock-absorbing frame of the utility model before and after it is subjected to pressure. DETAILED DESCRIPTION

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0018] The utility model discloses a shock-absorbing frame with a high-position pivot point and a low-position series connection. Figure 1 and Figure 2 As shown, it includes a front tripod 1, a rear tripod 2, a swing arm support 3, a swing arm connecting rod 4, a shock absorber 5 and a guide wheel 6. The front tripod 1 includes two upright middle tubes 10 arranged side by side, the upper end of the rear tripod 2 is hingedly connected to the upper end of the upright middle tube 10, the guide wheel 6 is arranged at a position close to the upper end of the rear tripod 2, the swing arm connecting rod 4 is arranged between the two upright middle tubes 10, and the hinge point of the swing arm connecting rod 4 is hingedly connected to the upright middle tube 10, the lower end of the swing arm connecting rod 4 is hingedly connected to the front end of the swing arm support 3, the rear end of the swing arm support 3 is hingedly connected to the lower end of the rear tripod 2, the seat body of the shock absorber 5 is hingedly connected to the front tripod 1, and the telescopic rod of the shock absorber 5 is hingedly connected to the upper end of the swing arm connecting rod 4.

[0019] In the above structure, the front tripod 1 and the rear tripod 2 form the basic framework of the frame, and the upper end of the rear tripod 2 is hingedly connected to the upper end of the upright middle tube 10. On this basis, a swing arm support 3, a swing arm connecting rod 4 and a shock absorber 5 are further provided between the rear tripod 2 and the front tripod 1, wherein the swing arm connecting rod 4 is hingedly connected to the upright middle tube 10, the swing arm support 3 is hingedly connected between the lower end of the rear tripod 2 and the lower end of the swing arm connecting rod 4, and the shock absorber 5 is hingedly connected between the front tripod 1 and the upper end of the swing arm connecting rod 4. Based on the above linkage relationship, When the upright middle tube 10 is subjected to force, the rear tripod 2 undergoes angular displacement with the upper end as the turning point, and the rear tripod 2 drives the swing arm support 3 to move backward, and the swing arm support 3 drives the rear end of the swing arm connecting rod 4 to shift backward, and the front end of the swing arm connecting rod 4 applies pressure to the shock absorber 5, and the shock absorber is deformed and compressed after being subjected to the pressure, and the shock absorption effect of the frame is obvious, thereby efficiently activating the shock absorbing function of the frame and reducing the bumpy feeling during riding. At the same time, the utility model arranges the guide wheel 6 at a position close to the upper end of the rear tripod 2, which can effectively avoid interference between the chain and the rear triangle, thereby improving the overall performance of the frame.

[0020] For the preferred articulation between the front and rear tripod, see Figure 1 The front end of the rear tripod 2 is provided with two forward extension brackets 20, and the upper ends of the forward extension brackets 20 are hingedly connected to the upper end of the upright middle tube 10. The two forward extension brackets 20 are preferably integrally formed with the rear tripod 2.

[0021] As a preferred embodiment, the rear end of the swing arm support 3 is disposed between the two forward extension brackets 20, and the rear end of the swing arm support 3 is hingedly connected to the two forward extension brackets 20. In this embodiment, the swing arm support 3 mainly plays a linkage role, which can convert the stress borne by the rear tripod 2 into a driving force for driving the swing arm connecting rod 4 to flip. On this basis, the swing arm support 3 is preferably a U-shaped support, and the lower end of the swing arm connecting rod 4 is located on the inner side of the swing arm support 3.

[0022] In order to enable the shock absorber 5 to withstand greater pressure, in this embodiment, the distance between the hinge point of the swing arm connecting rod 4 and the upper end of the swing arm connecting rod 4 is greater than the distance between the hinge point of the swing arm connecting rod 4 and the lower end of the swing arm connecting rod 4.

[0023] In order to reliably support the guide wheel 6, in the present embodiment, a fixed shaft 21 is provided on the side of the forward extension bracket 20, and the guide wheel 6 is sleeved on the fixed shaft 21 and the two are rotatably matched.

[0024] On this basis, a guide wheel cover 7 is fixed to the upper end of the forward extension bracket 20, and the guide wheel cover 7 covers the upper part of the guide wheel 6 with a gap therebetween.

[0025] In order to facilitate the installation of the shock absorber 5, in this embodiment, a shock absorber bracket 11 is provided on the lower tube of the front tripod 1, and the seat of the shock absorber 5 is hingedly connected to the shock absorber bracket 11. Specifically, the shock absorber bracket 11 is located on the inner side of the lower tube of the front tripod 1.

[0026] In the preferred embodiment of the utility model, the pivot point is located at the golden section point of the front and rear triangle of the entire frame, which is different from the low pivot point of the ordinary shock-absorbing frame and is located at a high position of the pivot point that is extremely easy to dynamically adjust. At the same time, the front and rear triangles are integrated into a structure, and the rear hook claws, upper and lower forks, upper and lower fork connection and withdrawal, and guide wheel device structure are integrated, so the frame strength and chain rotation efficiency are the highest. Furthermore, this embodiment moves the guide wheel up to the pivot point position, thereby solving the problem of the chain touching the lower fork; in addition, the utility model has a higher transmission efficiency, is more stable through the triangular transmission mode, has a better fixing effect, and a more stable transmission system.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shock-absorbing frame with a high-position pivot point and a low-position series connection, characterized in that: The invention comprises a front tripod (1), a rear tripod (2), a swing arm support (3), a swing arm connecting rod (4), a shock absorber (5) and a guide wheel (6), wherein the front tripod (1) comprises two upright middle tubes (10) arranged side by side, the upper end of the rear tripod (2) is hingedly connected to the upper end of the upright middle tube (10), the guide wheel (6) is arranged at a position close to the upper end of the rear tripod (2), the swing arm connecting rod (4) is arranged between the two upright middle tubes (1 0), and the hinge point of the swing arm connecting rod (4) is hingedly connected to the upright middle tube (10), the lower end of the swing arm connecting rod (4) is hingedly connected to the front end of the swing arm support (3), the rear end of the swing arm support (3) is hingedly connected to the lower end of the rear tripod (2), the seat body of the shock absorber (5) is hingedly connected to the front tripod (1), and the telescopic rod of the shock absorber (5) is hingedly connected to the upper end of the swing arm connecting rod (4).

2. The high-pivot-point and low-tandem shock-absorbing frame according to claim 1, characterized in that: The front end of the rear tripod (2) is provided with two forward extension brackets (20), and the upper ends of the forward extension brackets (20) are hingedly connected to the upper end of the upright middle tube (10).

3. The high-pivot-point low-tandem shock-absorbing frame according to claim 2, characterized in that: The rear end of the swing arm support (3) is arranged between the two forward extension brackets (20), and the rear end of the swing arm support (3) is hingedly connected to the two forward extension brackets (20).

4. The high-pivot-point and low-tandem shock-absorbing frame according to claim 1, characterized in that: The distance between the hinge point of the swing arm connecting rod (4) and the upper end of the swing arm connecting rod (4) is greater than the distance between the hinge point of the swing arm connecting rod (4) and the lower end of the swing arm connecting rod (4).

5. The high-pivot-point and low-tandem shock-absorbing frame according to claim 2, characterized in that: A fixed shaft (21) is provided on the side of the forward extension bracket (20), and the guide wheel (6) is sleeved on the fixed shaft (21) and the two are rotatably matched.

6. The high-pivot-point and low-tandem shock-absorbing frame according to claim 2, characterized in that: A guide wheel cover (7) is fixed to the upper end of the forward extension bracket (20), and the guide wheel cover (7) covers the upper part of the guide wheel (6) with a gap between the two.

7. The high-pivot-point and low-tandem shock-absorbing frame according to claim 1, characterized in that: A shock absorber bracket (11) is provided on the lower tube of the front tripod (1), and the seat body of the shock absorber (5) is hingedly connected to the shock absorber bracket (11).

8. The high-pivot-point and low-tandem shock-absorbing frame according to claim 1, characterized in that: The swing arm support (3) is a U-shaped support, and the lower end of the swing arm connecting rod (4) is located on the inner side of the swing arm support (3).

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