Front frame structure of light-weight motorcycle with handle capable of being quickly disassembled

Abstract

The front frame structure comprises front fork rods arranged on the two sides of a front wheel, each front fork rod comprises a base and a telescopic rod connected to the base in a telescopic mode, a connecting section is formed at the upper ends of the two telescopic rods, a handle piece is detachably connected to the connecting section, and the handle piece is detachably connected to the base. An inner cavity is formed in the base; the handle part and the front fork rod are detachably connected, during transportation, the handle part and the front fork rod can be disassembled and then packaged, the loading amount is increased, in addition, the inner cavity of the base is filled with hydraulic oil, the buffering strength is improved, the liquid outlet end of the backflow channel is set to be in the backflow trend, and the buffering performance is more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of motorcycle accessories, and particularly relates to a front frame structure of a lightweight motorcycle with a handlebar capable of being quickly disassembled. Background Art

[0002] The front frame structure of the existing off-road motorcycles on the market includes a front fork with a buffer structure and a handlebar connected to the front fork. The defects of this front frame structure are that the handlebar and the front frame are fixedly connected and cannot be disassembled, which leads to a larger overall volume of the product during transportation, thereby increasing the transportation cost. In addition, the buffer front fork used in existing off-road motorcycles mostly only achieves buffering by setting spring parts, and its damping force is insufficient, resulting in a short service life. Utility Model Content

[0003] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a front frame structure of a lightweight motorcycle with a quick-detachable handlebar, so as to solve the problems raised by the background technology.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A front frame structure of a lightweight motorcycle with a handlebar that can be quickly detached, comprising a front fork rod arranged on both sides of the front wheel, the front fork rod comprising a base and a telescopic rod telescopically connected to the base, a connecting section formed at the upper ends of the two telescopic rods, a handle piece detachably connected to the connecting section, an inner cavity formed on the base, and a buffer assembly, the buffer assembly comprising hydraulic oil filled in the inner cavity of the base, and a first sealing sleeve connected to the telescopic rod, the first sealing sleeve being slidably connected to the inner wall of the base, a connecting shaft being arranged on the inner end of the telescopic rod, and a first Two sealing sleeves, the first sealing sleeve and the second sealing sleeve directly form an oil storage chamber, a compression chamber is formed between the first sealing sleeve and the bottom wall of the base, an oil inlet hole is opened on the second sealing sleeve, a one-way valve assembly is arranged on the oil inlet hole, and also includes an oil return channel, the oil return channel connects the oil storage chamber and the compression chamber, a compression spring is also arranged in the inner chamber of the base, and the top end of the compression spring abuts against the bottom wall of the second sealing sleeve, when the telescopic rod is compressed, the hydraulic oil is pressed into the oil storage chamber through the oil inlet hole, the compression spring recovers, and when the telescopic rod is stretched, the hydraulic oil in the oil storage chamber flows back to the compression chamber through the oil return channel.

[0006] As a preferred technical solution, the oil return channel includes an oil return hole arranged on the connecting shaft, a through oil return groove is arranged in the connecting shaft, the oil return hole is connected to the oil return groove, a plug is arranged on one end of the oil return groove, and a guide plug is arranged on the other end, and a guide groove hole is arranged on the guide plug.

[0007] As an optimal technical solution, a reflux cavity is formed in the guide plug, the reflux cavity is connected to the oil return groove, an oil outlet hole is formed on the rear end of the guide plug, and the outlet hole and the reflux cavity form a guide slot hole.

[0008] The oil outlet hole is arranged at the rear end of the guide groove, so that the hydraulic oil has a tendency to flow back, the buffering stability is stronger, and no hard return is formed.

[0009] As a preferred technical solution, a retaining ring is formed on the connecting shaft, and the oil return hole is arranged on the rear end surface of the retaining ring.

[0010] As a preferred technical solution, the one-way valve assembly includes a valve plate arranged on the rear end of the first sealing sleeve, and a spring member is arranged between the rear end of the valve plate and the retaining ring.

[0011] When the telescopic rod is compressed, the hydraulic oil pushes the valve plate open and enters the oil storage chamber.

[0012] As a preferred technical solution, an inserting section is formed at the lower end of the handle member, the inserting section is inserted into the connecting section, and the inserting section and the connecting section are fixedly connected by a fixing member.

[0013] As a preferred technical solution, an arc-shaped piece is provided on the side of the connecting section, and the fixing piece is a bolt, which passes through the arc-shaped piece, the connecting section and the plug-in section and is fixed by a nut.

[0014] As a preferred technical solution, a reinforcing connecting frame is connected between the two handles.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] The handle member of the present application is detachably connected to the front fork rod, and can be disassembled and then packaged during transportation to increase the loading capacity. In addition, hydraulic oil is filled in the inner cavity of the base to increase the buffering strength, and the liquid outlet end of the reflux channel is arranged to have a reflux trend, making the buffering performance more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation structure of the utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0019] Figure 3 This is a schematic diagram of the structure of the handle of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the buffer component of the utility model;

[0021] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at B;

[0022] Figure 6 It is a schematic diagram of the connecting shaft structure of the utility model. DETAILED DESCRIPTION

[0023] Example

[0024] refer to Figures 1 to 6 , a front frame structure of a lightweight motorcycle with a handlebar that can be quickly detached in this embodiment, comprises a front fork rod arranged on both sides of the front wheel, the front fork rod comprises a base 1 and a telescopic rod 2 telescopically connected to the base, a connecting section 3 is formed at the upper ends of the two telescopic rods, a handle piece is detachably connected to the connecting section, an inner cavity is formed on the base, and also comprises a buffer assembly, the buffer assembly comprises hydraulic oil filled in the inner cavity of the base, and also comprises a first sealing sleeve 4 connected to the telescopic rod, the first sealing sleeve is slidably connected to the inner wall of the base, a connecting shaft 5 is arranged on the inner end of the telescopic rod, a second sealing sleeve 6 is arranged on the connecting shaft, the first sealing sleeve and the second sealing sleeve directly form an oil storage chamber 7, a compression chamber 8 is formed between the first sealing sleeve and the bottom wall of the base, an oil inlet hole 9 is opened on the second sealing sleeve, a one-way valve assembly is arranged on the oil inlet hole, and the one-way valve assembly comprises a valve sheet 1 arranged on the rear end of the first sealing sleeve 8. A spring member 19 is arranged between the rear end of the valve plate and the retaining ring. When the telescopic rod is compressed, the hydraulic oil opens the valve plate and enters the oil storage chamber. The oil return channel is also included. The oil return channel connects the oil storage chamber and the compression chamber. A compression spring 10 is also arranged in the inner chamber of the base. The top end of the compression spring abuts against the bottom wall of the second sealing sleeve, and the bottom end of the compression spring abuts against the bottom wall of the inner chamber. When the telescopic rod is compressed, the hydraulic oil is pressed into the oil storage chamber from the oil inlet hole, and the compression spring recovers. When the telescopic rod is stretched, the hydraulic oil in the oil storage chamber flows back to the compression chamber through the oil return channel, wherein the oil return channel includes an oil return hole 11 arranged on the connecting shaft. In this embodiment, a retaining ring 17 is formed on the connecting shaft, and the oil return hole is arranged on the rear end surface of the retaining ring. A through oil return groove 12 is arranged in the connecting shaft, and the oil return hole is connected to the oil return groove. A plug 13 is arranged on one end of the oil return groove, and a guide plug 14 is arranged on the other end, and a guide slot hole is arranged on the guide plug. Specifically, a reflux cavity 15 is formed in the guide plug, the reflux cavity is connected to the oil return groove, an oil outlet hole 16 is formed on the rear end of the guide plug, and the outlet hole and the reflux cavity form a guide slot. The oil outlet hole is arranged on the rear end of the guide slot, so that the hydraulic oil forms a reflux trend, the buffer stability is stronger, and no hard return is formed.

[0025] In this embodiment, an inserting section 20 is formed at the lower end of the handle piece, and the inserting section is inserted into the connecting section, and the inserting section and the connecting section are fixedly connected by a fixing member. An arc-shaped piece 21 is provided on the side of the connecting section. The fixing member is a bolt, and the bolt passes through the arc-shaped piece, the connecting section and the inserting section and is fixed by a nut. A reinforcing connecting frame 22 is connected between the two handle pieces.

[0026] In this embodiment, the connecting shaft is threadedly connected to the inner end of the telescopic rod, and the guide plug is threadedly connected to the end of the connecting shaft.

[0027] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A front frame structure of a lightweight motorcycle with a quick-detachable handlebar, characterized in that: The invention comprises a front fork rod arranged on both sides of the front wheel, the front fork rod comprises a base and a telescopic rod telescopically connected to the base, the upper ends of the two telescopic rods are formed with connecting sections, the connecting sections are detachably connected with a handle piece, an inner cavity is formed on the base, and a buffer assembly is also included, the buffer assembly comprises hydraulic oil filled in the inner cavity of the base, and also comprises a first sealing sleeve connected to the telescopic rod, the first sealing sleeve is slidably connected to the inner wall of the base, a connecting shaft is arranged on the inner end of the telescopic rod, a second sealing sleeve is arranged on the connecting shaft, and the first sealing sleeve is provided. The sliding sleeve and the second sealing sliding sleeve directly form an oil storage chamber, and a compression chamber is formed between the first sealing sliding sleeve and the bottom wall of the base. An oil inlet hole is opened on the second sealing sliding sleeve, and a one-way valve assembly is arranged on the oil inlet hole. The oil return channel also includes an oil return channel, which connects the oil storage chamber and the compression chamber. A compression spring is also arranged in the inner cavity of the base, and the top end of the compression spring abuts against the bottom wall of the second sealing sliding sleeve. When the telescopic rod is compressed, the hydraulic oil is pressed into the oil storage chamber through the oil inlet hole, and the compression spring recovers. When the telescopic rod is stretched, the hydraulic oil in the oil storage chamber flows back to the compression chamber through the oil return channel.

2. The front frame structure of a lightweight motorcycle with a quick-detachable handlebar according to claim 1, characterized in that: The oil return channel includes an oil return hole arranged on the connecting shaft, a through oil return groove is arranged in the connecting shaft, the oil return hole is connected to the oil return groove, a plug is arranged on one end of the oil return groove, and a guide plug is arranged on the other end, and a guide slot hole is arranged on the guide plug.

3. The front frame structure of a lightweight motorcycle with a quick-detachable handlebar according to claim 2, characterized in that: A reflux cavity is formed in the guide plug, which is communicated with the oil return groove. An oil outlet hole is formed on the rear end of the guide plug, and the outlet hole and the reflux cavity form a guide slot hole.

4. The front frame structure of a lightweight motorcycle with a quick-detachable handlebar according to claim 1, characterized in that: A retaining ring is formed on the connecting shaft, and the oil return hole is arranged on the rear end surface of the retaining ring.

5. The front frame structure of a lightweight motorcycle with a quick-detachable handlebar according to claim 1, characterized in that: The one-way valve assembly comprises a valve plate arranged on the rear end of the first sealing sleeve, and a spring member is arranged between the rear end of the valve plate and the retaining ring.

6. The front frame structure of a lightweight motorcycle with a quick-detachable handlebar according to claim 1, characterized in that: An inserting section is formed at the lower end of the handle member, the inserting section is inserted into the connecting section, and the inserting section and the connecting section are fixedly connected by a fixing member.

7. The front frame structure of a lightweight motorcycle with a quick-detachable handlebar according to claim 1, characterized in that: The side of the connecting section is provided with an arc-shaped piece, and the fixing piece is a bolt, which passes through the arc-shaped piece, the connecting section and the plug-in section and is fixed by a nut.

8. The front frame structure of a lightweight motorcycle with a quick-detachable handlebar according to claim 1, characterized in that: A reinforcing connecting frame is connected between the two handle pieces.

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