CN104875824B - Motorcycle tank post-mounting structure - Google Patents

Abstract

The invention discloses a motorcycle oil tank rear installation structure. Two screw sleeves (3) are welded side by side at the bottom of the tail end of the fuel tank (1), and the screw sleeve (3) is fitted with a positioning plate (4) and a first damping pad ( 5), the first shock pad (5) presses the positioning plate (4) on the fuel tank (1), and the annular boss (5a) at the lower end of the first shock pad (5) extends into the front end of the rear mounting bracket (2) In the assembly hole of the rear mounting bracket (2), a pressure plate (6) is set below the front end of the rear mounting bracket (2), and the pressure plate (6) connects the front end of the rear mounting bracket (2) to the first shock absorption pad (5) Compression, the screw (8) passes through the through hole on the pressure plate (6) and extends into the screw hole of the screw sleeve (3), and the pressure plate (6) and the screw sleeve (3) are fixed together. The present invention prevents the rear mounting bracket from directly contacting the fuel tank through the rotating connection, and dampens the fuel tank both up and down, left and right, thereby greatly improving the shock-absorbing effect and riding comfort.

Description

Motorcycle fuel tank rear installation structure

technical field

The invention belongs to the technical field of motorcycles, and in particular relates to a rear installation structure of a fuel tank on a motorcycle.

Background technique

The rear end of the motorcycle oil tank is installed on the vehicle frame through a bracket. At present, the rear mounting bracket is fixed to the fuel tank by welding, and there is a shock absorber under the rear mounting bracket, which is fastened to the vehicle frame by screws. On the one hand, the welding process of the fuel tank is complicated and the production cost of the above structure is high; The vibration transmitted from the fuel tank to the driver's legs is still relatively large, which will cause numbness in the driver's legs, which not only affects the riding comfort, but also poses a safety hazard.

Contents of the invention

The technical problem to be solved by the present invention is to provide a motorcycle oil tank rear installation structure with good shock absorption effect.

The technical scheme of the present invention is as follows: a rear installation structure of a motorcycle fuel tank, comprising a fuel tank (1) and a rear mounting bracket (2), the key of which is to weld two screw sleeves ( 3), the screw sleeve (3) is set with a low front and a rear height, and the two screw sleeves (3) are parallel to the left and right, and the positioning plate (4) and the first shock pad (5) are set on the screw sleeve (3), The first shock pad (5) presses the positioning plate (4) on the fuel tank (1), and the annular boss (5a) at the lower end of the first shock pad (5) extends into the assembly hole at the front end of the rear mounting bracket (2) Among them, a pressing plate (6) is set under the front end of the rear mounting bracket (2), and the pressing plate (6) connects the front end of the rear mounting bracket (2) to the first shock pad (5) through the second shock pad (7). Compression, the screw (8) passes through the through hole on the pressure plate (6) and extends into the screw hole of the screw sleeve (3), and the pressure plate (6) and the screw sleeve (3) are fixed together.

Using the above technical scheme, the front and rear heights of the screw sleeves are set at an inclination, and are perpendicular to the installation surface corresponding to the end of the fuel tank, so that the structure of the fuel tank is hardly changed, the welding process of the fuel tank is simpler, and the production cost can be effectively reduced; at the same time, the screw sleeve It is firmly connected with the fuel tank and will not loosen or fall off. There is a first shock-absorbing pad on the top of the rear mounting bracket, and a second shock-absorbing pad on the bottom. The rear mounting bracket does not directly contact the screw sleeve, fuel tank and pressure plate. The connection between the mounting bracket and the fuel tank is firm and reliable; on the other hand, the upper and lower shock absorbing pads can absorb shock in both the up and down directions, as well as in the left and right directions, thereby ensuring a better shock absorbing performance for the fuel tank and enabling transmission to The vibration of the rider's legs is very small, which effectively eliminates potential safety hazards while improving riding comfort.

A sinking groove is formed on the positioning plate (4) through a depression, and the head boss (3a) at the upper end of the screw sleeve (3) is located in the sinking groove. The above structure can not only avoid the occurrence of interference, but also make the positioning plate and the fuel tank fit closely and have good firmness.

The wall of the assembly hole at the front end of the rear mounting bracket (2) is flanged downwards to form a protruding ring (2a). The protruding ring (2a) is embedded in the second shock absorbing pad (7), and the first shock absorbing pad (5 ) The annular boss (5a) at the lower end does not exceed the lower end surface of the protruding ring (2a). On the one hand, the above structure can increase the structural strength of the installation place of the rear mounting bracket, so that the firmness and reliability of the installation are better; on the other hand, the first shock pad is completely separated from the second shock pad, which further improves the shock absorption. Effect.

In order to increase structural strength and prevent deformation, the pressing plate (6) is "L-shaped".

Beneficial effects: the invention prevents the rear mounting bracket from directly contacting the fuel tank through the rotating connection, and dampens the fuel tank in both up and down and left and right directions, thereby greatly improving the shock absorption effect and riding comfort.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a sectional view along line A-A of Fig. 1 .

Figure 3 is an enlarged view of the connection between the rear mounting bracket and the fuel tank.

detailed description

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Fig. 1, Fig. 2 and Fig. 3, the present invention consists of a fuel tank 1, a rear mounting bracket 2, a screw sleeve 3, a positioning plate 4, a first shock absorbing pad 5, a pressing plate 6, a second shock absorbing pad 7 and a screw 8 and so on. Wherein, two screw sleeves 3 are welded side by side at the bottom of the tail end of the fuel tank 1. The screw sleeves 3 are arranged with a low front and a high rear. Set the positioning plate 4 and the first shock pad 5 on the screw sleeve 3, the positioning plate 4 is located above the first shock pad 5, and the corresponding screw sleeve 3 places on the positioning plate 4 are formed with sinking grooves through depressions, and the upper end of the screw sleeve 3 The head boss 3a is located in the sinker.

As shown in FIG. 1 , FIG. 2 , and FIG. 3 , the first shock absorber 5 presses the positioning plate 4 on the fuel tank 1 , so that the positioning plate 4 and the fuel tank 1 fit together. The lower end of the first shock absorbing pad 5 is integrally formed with an annular boss 5 a, and the annular boss 5 a extends into the assembly hole at the front end of the rear mounting bracket 2 . A pressure plate 6 is arranged below the front end of the rear mounting bracket 2, and the pressure plate 6 corresponds to the screw sleeve 3 one by one, and the pressure plate 6 is preferably "L-shaped". A second damping pad 7 is set between the pressing plate 6 and the rear mounting bracket 2, the pressing plate 6 compresses the front end of the rear mounting bracket 2 and the first damping pad 5 through the second damping pad 7, and the screw 8 passes through the pressing plate 6 and extend into the threaded hole of the screw sleeve 3 to fix the pressure plate 6 and the screw sleeve 3 together. The hole wall of the assembly hole at the front end of the rear mounting bracket 2 is flanged downwards to form a convex ring 2a, which is embedded in the second shock absorbing pad 7, and the annular boss 5a at the lower end of the first shock absorbing pad 5 does not exceed the convex ring 2a. The lower end face of the ring 2a.

Claims (1)

1. a kind of motorcycle tank post-mounting structure, including fuel tank (1) and rear mounting bracket (2), it is characterised in that：In the oil Two swivel nuts (3) are welded in the bottom of case (1) tail end side by side, and swivel nut (3) is low early and high after is obliquely installed for this, and two swivel nuts (3) are left It is right parallel, location-plate (4) and the first beam (5) are set with swivel nut (3), the first beam (5) oppresses location-plate (4) On fuel tank (1), the annular boss (5a) of the first beam (5) lower end is stretched into the pilot hole of rear mounting bracket (2) front end, rear The lower section of mounting bracket (2) front end sets pressing plate (6), and the pressing plate (6) is by the second beam (7) by rear mounting bracket (2) Front end is compressed with the first beam (5), and screw (8) is through the via on pressing plate (6) and stretches into the screw of swivel nut (3), will press Plate (6) and swivel nut (3) are fixed together；

Deep gouge is formed with by depression on the location-plate (4), the head boss (3a) of swivel nut (3) upper end is located in the deep gouge；

The downward flange of hole wall of rear mounting bracket (2) front end pilot hole, forms bulge loop (2a), the bulge loop (2a) embedded second In beam (7), the annular boss (5a) of the first beam (5) lower end is no more than the lower surface of bulge loop (2a)；

The pressing plate (6) is " L-shaped ".