Damping structure for frame

Abstract

The utility model discloses a damping structure for a frame. The vehicle comprises a vehicle frame, a first connecting piece is rotationally installed at the bottom of the front end of the vehicle frame, second connecting pieces are rotationally installed on the two sides of the first connecting piece, a front hub and a first air cylinder are rotationally installed on the first connecting piece through the second connecting pieces, and third connecting pieces are installed on the two sides of the rear end of the vehicle frame. A rear hub is rotationally installed on the frame through a third connecting piece, a connecting shaft is rotationally installed at the rear end of the frame, and second air cylinders are rotationally installed at the rear ends of the two sides of the frame through the connecting shaft. The air cylinders are arranged on the two sides of the front hub and the two sides of the rear hub, damping is carried out in a double-air-cylinder mode, the damping effect is improved, meanwhile, the air cylinders are installed on the two sides of the hubs, and use of the air cylinders cannot be affected by broken stones or silt brought out by the hubs.

Description

Technical Field

[0001] The utility model relates to the technical field of folding bikes, and specifically relates to a shock absorption structure for a bike frame. Background Technique

[0002] In the suspension system, due to the vibration generated by the elastic element under impact, in order to improve the riding smoothness of the folding bike, a shock absorber is installed in parallel with the elastic element in the suspension. To attenuate the vibration, most of the shock absorbers used in the folding bike suspension system are hydraulic shock absorbers. Its working principle is that when relative movement occurs between the bike frame (or body) and the axle due to vibration, the piston in the shock absorber moves up and down, and the oil in the shock absorber cavity repeatedly flows from one cavity through different pores into another cavity.

[0003] After searching Chinese patents, the application publication number: CN216360007U discloses a new shock absorption structure and an electric scooter. The technical solution adopted in this is a single spring shock absorption, and the shock absorption effect is limited. And the installation position of the spring in this technical solution is in the middle of the wheel hub. During the rotation of the wheel hub, gravel or mud will be thrown on the spring, causing jamming during the spring shock absorption process and damaging the spring. Content of the Utility Model

[0004] The purpose of the utility model is to provide a shock absorption structure for a bike frame to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A shock absorption structure for a bike frame, including a bike frame. A first connecting piece is rotatably installed at the bottom of the front end of the bike frame. Second connecting pieces are rotatably installed on both sides of the first connecting piece. The first connecting piece rotatably installs a front wheel hub and a first cylinder through the second connecting pieces. Third connecting pieces are installed on both sides of the rear end of the bike frame. The bike frame rotatably installs a rear wheel hub through the third connecting pieces. A connecting shaft is rotatably installed at the rear end of the bike frame. Second cylinders are rotatably installed at the rear ends of both sides of the bike frame through the connecting shaft.

[0006] By adopting the above technical solution, cylinders are arranged on both sides of the front wheel hub and the rear wheel hub, and the shock absorption effect is improved by the shock absorption of the double cylinders.

[0007] Preferably, both ends of the first cylinder are rotatably connected to the first connecting piece and the second connecting piece respectively, and the first cylinder, the first connecting piece and the second connecting piece form a triangle. The first connecting piece is arc-shaped, and the bottom and top of the first connecting piece are concave and convex respectively.

[0008] By adopting the above technical solution, the first connecting member, the second connecting member and the first cylinder form a triangle. Through the cooperation between the concave part at the bottom and the convex part at the top of the first connecting member and the first cylinders on both sides of the front hub, the installation stability of the front-end hub of the frame is improved.

[0009] Preferably, the first connecting member is rotatably connected to the frame, the first connecting member is rotatably connected to the second connecting member, and both ends of the first cylinder are rotatably connected between the first connecting member and the second connecting member.

[0010] By adopting the above technical solution, there is a handlebar on the frame, and the handlebar is connected to the first connecting member, and the handlebar can drive the first connecting member to rotate.

[0011] Preferably, a connection hole is provided at the rear end of the frame, the connection hole on the frame is rotatably connected to a connection shaft, and one end of the connection shaft is rotatably connected to the second cylinder.

[0012] Preferably, rotating blocks are provided at both rear ends of the frame on both sides, and the frame is rotatably connected to the third connecting member through the rotating blocks.

[0013] Preferably, a connection block is provided on one side of the third connecting member, and the other end of the second cylinder is rotatably connected to the third connecting member through the connection block.

[0014] Compared with the prior art, the beneficial effect of the present utility model is that: for the shock-absorbing structure of the frame, cylinders are provided on both sides of the front hub and the rear hub, and shock absorption is carried out in the way of double cylinders, so that the shock-absorbing effect is improved. At the same time, the installation positions of the cylinders are on both sides of the hub, and the gravel or sediment brought out by the hub will not affect the use of the cylinders. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is a front view of the present utility model;

[0017] Figure 3 is a perspective view of the rear hub part of the present utility model.

[0018] In the figure: 1, frame; 2, first connecting member; 3, second connecting member; 4, front hub; 5, first cylinder; 6, third connecting member; 7, rear hub; 8, second cylinder; 9, connection shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0020] Please refer to Figures 1-3 , an embodiment provided by the present utility model: a shock-absorbing structure for a vehicle frame, including a vehicle frame 1. A first connecting member 2 is rotatably installed at the bottom of the front end of the vehicle frame 1. Second connecting members 3 are rotatably installed on both sides of the first connecting member 2. The first connecting member 2 rotatably installs a front hub 4 and a first cylinder 5 through the second connecting members 3. The first cylinder 5 shocks the front hub 4, and the second connecting members 3 install the front hub 4 on the first connecting member 2. Third connecting members 6 are installed on both sides of the rear end of the vehicle frame 1. The vehicle frame 1 rotatably installs a rear hub 7 through the third connecting members 6. A connecting shaft 9 is rotatably installed at the rear end of the vehicle frame 1. Second cylinders 8 are rotatably installed at the rear ends on both sides of the vehicle frame 1 through the connecting shaft 9. Holes are provided at both ends of the first cylinder 5 and the second cylinders 8. Cylinders are provided on both sides of the front hub 4 and the rear hub 7. The shock-absorbing effect is improved through the shock absorption of the double cylinders. And there are two first cylinders 5 and two second cylinders 8 respectively, and the first cylinders 5 and the second cylinders 8 are respectively installed on both sides of the first cylinder 5 and the second flagpoles 8, which can not only improve the stability of the shock absorption of the front hub 4 and the rear hub 7, but also prevent gravel or sediment from being thrown onto the first cylinder 5 and the second cylinders 8 during the rotation of the front hub 4 and the rear hub 7, preventing the shock absorption of the first cylinder 5 and the second cylinders 8 from being affected.

[0021] In this embodiment, both ends of the first cylinder 5 are rotatably connected to the first connecting member 2 and the second connecting members 3 respectively, and the first cylinder 5, the first connecting member 2 and the second connecting members 3 form a triangle. The first connecting member 2, the second connecting members 3 and the first cylinder 5 form a triangle. The first connecting member 2 is arc-shaped, and the bottom and top of the first connecting member 2 are respectively concave and convex. Through the cooperation of the concave bottom and the convex top of the first connecting member 2 with the first cylinders 5 on both sides of the front hub 4, the installation stability of the front end hub of the vehicle frame 1 is improved. The second connecting members 3 and the first cylinder 5 are respectively connected to the bottom and the middle position on both sides of the first connecting member 2.

[0022] In this embodiment, the first connecting member 2 is rotatably connected to the vehicle frame 1, the first connecting member 2 is rotatably connected to the second connecting members 3, both ends of the first cylinder 5 are rotatably connected to the first connecting member 2 and the second connecting members 3 respectively. There is a handlebar on the vehicle frame 1, and the handlebar is connected to the first connecting member 2. The handlebar can drive the first connecting member 2 to rotate.

[0023] In this embodiment, a connection hole is provided at the rear end of the frame 1. The connection hole on the frame 1 is rotatably connected to the connection shaft 9, and the connection shaft 9 is rotatably connected to one end of the second cylinder 8. The frame 1 is stably and firmly mounted on the connection shaft 9 through the connection hole.

[0024] In this embodiment, rotating blocks are provided at the rear ends on both sides of the frame 1. The frame 1 is rotatably connected to the third connecting member 6 through the rotating blocks, and the third connecting block 6 is stably and firmly mounted on the frame 1 through the connecting block.

[0025] In this embodiment, a connecting block is provided on one side of the third connecting member 6. The other end of the second cylinder 8 is rotatably connected to the third connecting member 6 through the connecting block. The second cylinder 8 is stably and firmly mounted on the third connecting member 6 through the connecting block. The two ends of the third connecting member 6 are respectively connected to the frame 1 and the rear hub 7, and the two ends of the second cylinder 8 are respectively connected to the frame 1 and the third connecting member 6. The third connecting member 6 is L-shaped because of the connecting block.

[0026] Working principle: When the front hub 4 or the rear hub 7 passes through an uneven road, the front hub 4 and the rear hub 7 respectively play a shock-absorbing effect through the cooperation of the first cylinder 5 and the second cylinder 8. When the output ends of the first cylinder 5 and the second cylinder 8 are squeezed, the gas inside the first cylinder 5 and the second cylinder 8 buffers to achieve the shock-absorbing purpose. Moreover, there are two first cylinders 5 and two second cylinders 8, which are respectively arranged on both sides of the front hub 4 and the rear hub 7 to improve the stability of shock absorption. They are not arranged in the middle positions of the front hub 4 and the rear hub 7. During the rotation of the front hub 4 and the rear hub 7, the gravel or sediment thrown out by the front hub 4 and the rear hub 7 will not affect the use of the first cylinder 5 and the second cylinder 8.

[0027] For those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or scope of the present invention. Therefore, the embodiments of the present invention are exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A shock absorbing structure for a vehicle frame, comprising a vehicle frame (1), characterized in that: A first connecting member (2) is rotatably mounted at the bottom of the front end of the frame (1); second connecting members (3) are rotatably mounted on both sides of the first connecting member (2); a front wheel hub (4) and a first cylinder (5) are rotatably mounted on the first connecting member (2) via the second connecting member (3); third connecting members (6) are mounted on both sides of the rear end of the frame (1); a rear wheel hub (7) is rotatably mounted on the frame (1) via the third connecting member (6); a connecting shaft (9) is rotatably mounted at the rear end of the frame (1); and second cylinders (8) are rotatably mounted on the rear ends of both sides of the frame (1) via the connecting shafts (9).

2. A shock absorbing structure for a vehicle frame according to claim 1, characterized in that: The two ends of the first cylinder (5) are rotatably connected to the first connecting member (2) and the second connecting member (3) respectively, and the first cylinder (5), the first connecting member (2) and the second connecting member (3) are in a triangular shape, the first connecting member (2) is in an arc shape, and the bottom and top of the first connecting member (2) are respectively concave and protruding.

3. A shock absorbing structure for a vehicle frame according to claim 1, characterized in that: The first connecting member (2) is rotatably connected to the vehicle frame (1), the first connecting member (2) is rotatably connected to the second connecting member (3), and the two ends of the first cylinder (5) are rotatably connected to the first connecting member (2) and the second connecting member (3), respectively.

4. The shock absorbing structure for a vehicle frame according to claim 1, characterized in that: A connecting hole is provided at the rear end of the vehicle frame (1); the connecting hole on the vehicle frame (1) is rotatably connected to a connecting shaft (9); and the connecting shaft (9) is rotatably connected to one end of the second cylinder (8).

5. The shock absorbing structure for a vehicle frame according to claim 1, characterized in that: The rear ends of both sides of the vehicle frame (1) are provided with rotating blocks, and the vehicle frame (1) is rotatably connected to the third connecting member (6) via the rotating blocks.

6. The shock absorbing structure for a vehicle frame according to claim 1, characterized in that: A connecting block is provided on one side of the third connecting member (6), and the other end of the second cylinder (8) is rotatably connected to the third connecting member (6) via the connecting block.

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