CN204623712U - A kind of shock-absorptive frame of bicycle - Google Patents

Abstract

The utility model provides a kind of shock-absorptive frame of bicycle, comprise crossbeam, lower pipe, standpipe and back vent, the buffer rack of minor arc shape is connected with between crossbeam and lower pipe, the affixed crossbeam in upper end of buffer rack and the affixed lower pipe in its lower end, buffer rack and crossbeam and lower pipe are positioned at same plane, and standpipe comprises upper riser and lower standing tube, the rearward end of the affixed crossbeam of upper riser, the rearward end of the affixed lower pipe of lower standing tube, coaxially and form buffer zone between the two, back vent is fixed on lower standing tube for upper riser and lower standing tube.Upper riser and lower standing tube are separated and provide buffer zone, buffer rack assume responsibility for the pressure that vehicle seat is transmitted by crossbeam, because buffer rack is arc, therefore, it produces the effect of similar arc spring in ride, the bounce overcoming bicyclist's gravity inertial is provided, thus effectively can reduces the sense of jolting of riding, realize damping.

Description

A kind of shock-absorptive frame of bicycle

Technical field

The utility model belongs to bicycle accessories field, especially relates to a kind of cycle frame.

Background technology

The vehicle frame of bicycle is the core support part of whole vehicle body, the vehicle frame of existing bicycle is generally by the crossbeam be welded to each other, the composition such as standpipe and back vent, vehicle frame each several part supports corresponding parts, such as standpipe supporting seat, in driving conditions, unavoidably roughness pavement must be run into, the tire of bicycle can play certain buffer action, but because the buffer action of tire is limited, jolting on road surface, bicyclist can feel pause and transition in rhythm or melody sense largely, especially vehicle seat position, carry most of gravity of bicyclist, so the discomfort of bicyclist's buttocks can be caused.

Therefore, need a kind of can the cycle frame of damping, reduce the sense of jolting of riding that roughness pavement brings.

Summary of the invention

Problem to be solved in the utility model is to provide a kind of damping bicycle, under the prerequisite ensureing frame strength, can be reduced in the sense of jolting brought that roughness pavement rides.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of shock-absorptive frame of bicycle, comprise crossbeam, lower pipe, standpipe and back vent, the buffer rack of minor arc shape is connected with between crossbeam and lower pipe, the affixed crossbeam in upper end of buffer rack and the affixed lower pipe in its lower end, buffer rack and crossbeam and lower pipe are positioned at same plane, standpipe comprises upper riser and lower standing tube, the rearward end of the affixed crossbeam of upper riser, the rearward end of the affixed lower pipe of lower standing tube, coaxially and form buffer zone between the two, back vent is fixed on lower standing tube for upper riser and lower standing tube.

Wherein, buffer rack is set to multiple, and multiple buffer rack is arranged in order by after forward direction, and is increased successively by the circle diameter at the buffer rack place after forward direction.

Further, the periphery of buffer rack is arranged with recoil spring, and the upper end of recoil spring is resisted against crossbeam, and the lower end of recoil spring is resisted against lower pipe.

Further, between upper riser and lower standing tube, be connected with spring, spring and upper riser and lower standing tube coaxial.

Further, the lower end of upper riser is connected with the piston rod coaxial with it, and the tube chamber of lower standing tube is set to cylinder chamber, and piston rod and cylinder chamber coordinate formation air cylinder.

The advantage that the utility model has and good effect are:

1, upper riser and lower standing tube are separated and provide buffer zone, buffer rack assume responsibility for the pressure that vehicle seat is transmitted by crossbeam, because buffer rack is arc, therefore, it produces the effect of similar arc spring in ride, the bounce overcoming bicyclist's gravity inertial is provided, thus effectively can reduces the sense of jolting of riding, realize damping.

2, the spring between upper riser and lower standing tube can share the pressure that buffer rack is born effectively; reduce the pressure damage that buffer rack receives; extend the service life of buffer rack, and the gravity of the bounce of spring and bicyclist is coaxially reverse, can provide better damping effect.

3, the air cylinder formed between upper riser and lower standing tube then can further improve the smoothness of buffering, provides more comfortable sense of riding.

In a word, the shock-absorptive frame of bicycle that the utility model provides, can not only ensure the intensity of cycle frame, and can realize the cushioning supportive to vehicle seat, improve the comfort level of riding.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of an embodiment of the present utility model;

Fig. 3 is the structural representation of another embodiment of the present utility model

In figure: 1-crossbeam, manage under 2-, 3-standpipe, 4-back vent, 5-buffer rack, 6-upper riser, 7-lower standing tube, 8-recoil spring, 9-spring, 10-piston rod

Detailed description of the invention

Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.

As shown in Figure 1, a kind of shock-absorptive frame of bicycle, comprise crossbeam 1, lower pipe 2, standpipe 3 and back vent 4, the buffer rack 5 of minor arc shape is connected with between crossbeam 1 and lower pipe 2, the affixed crossbeam in upper end 1 of buffer rack 5 and the affixed lower pipe 2 in its lower end, buffer rack 5 is positioned at same plane with crossbeam 1 and lower pipe 2, standpipe 3 comprises upper riser 6 and lower standing tube 7, the rearward end of the affixed crossbeam 1 of upper riser 6, the rearward end of the affixed lower pipe 2 of lower standing tube 7, coaxially and form buffer zone between the two, back vent 4 is fixed on lower standing tube 7 for upper riser 6 and lower standing tube 7.

Because upper and lower standpipe (6,7) is separated, therefore, buffer rack 5 assume responsibility for the gravity buffering on vehicle seat, when running into roughness pavement, due to the gravity inertial of bicyclist, the power that the vehicle seat that upper riser 6 supports can be pressed down, now, the spring of the similar arc of buffer rack 5 of arc, plays buffering and rebound effect to crossbeam 1, therefore, vehicle seat can be subject to a bounce upwards, and bicyclist can feel elastomeric cushion effect, thus can avoid the pause and transition in rhythm or melody sense that existing integral vertical pipe racks comes.

In an embodiment of the present utility model, as shown in Figure 2, buffer rack 5 is set to multiple, and multiple buffer rack 5 is arranged in order by after forward direction, and is increased successively by the circle diameter at buffer rack 5 place after forward direction.Multiple buffer rack 5 can share pressure jointly, reduces the stressed of single buffer rack 5, thus increases the service life.

In another embodiment of the present utility model, as shown in Figure 3, the periphery of buffer rack 5 is arranged with recoil spring 8, and the upper end of recoil spring 8 is resisted against crossbeam 1, and the lower end of recoil spring 8 is resisted against lower pipe 2.Recoil spring 8 can share the pressure that a part of buffer rack 5 is subject to, and extends the service life of buffer rack 5.

Bear excessive pressure in order to avoid buffer rack 5 and cause bending, as shown in Figure 2, in an embodiment of the present utility model, between upper riser 6 and lower standing tube 7, being connected with spring 9, spring 9 and upper riser 6 and lower standing tube 7 coaxial.Like this; spring 9 and buffer rack 5 can work in coordination with the rebound buffering effect provided bicyclist's gravity; spring 9 can share the pressure that buffer rack 5 is subject to; therefore service life of buffer rack 5 can be extended by actv.; and the bounce of spring 9 is contrary with the gravity direction of bicyclist, rebound buffering can be carried out better.

In order to provide softer buffering effect, in an embodiment of the present utility model, as shown in Figure 3, the lower end of upper riser 6 is connected with the piston rod 10 coaxial with it, and the tube chamber of lower standing tube 7 is set to cylinder chamber, and piston rod 10 and cylinder chamber coordinate formation air cylinder.Air cylinder, when being subject to bicyclist's applied pressure, can providing pressure buffer, and provide bounce, and therefore air cylinder also can share the pressure that buffer rack 5 is subject to, and auxiliary buffer rack 5 provides better buffering effect.

Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.

Claims (5)

1. a shock-absorptive frame of bicycle, it is characterized in that: comprise crossbeam (1), lower pipe (2), standpipe (3) and back vent (4), the buffer rack (5) of minor arc shape is connected with between crossbeam (1) and lower pipe (2), the affixed crossbeam in the upper end (1) of buffer rack (5) and the affixed lower pipe (2) in its lower end, buffer rack (5) is positioned at same plane with crossbeam (1) and lower pipe (2), standpipe (3) comprises upper riser (6) and lower standing tube (7), the rearward end of upper riser (6) affixed crossbeam (1), the rearward end of the affixed lower pipe (2) of lower standing tube (7), upper riser (6) and lower standing tube (7) are coaxially and form buffer zone between the two, ((4) are fixed on lower standing tube (7) back vent.

2. shock-absorptive frame of bicycle according to claim 1, it is characterized in that: buffer rack (5) is set to multiple, multiple buffer rack (5) is arranged in order by after forward direction, and is increased successively by the circle diameter at buffer rack (5) place after forward direction.

3. shock-absorptive frame of bicycle according to claim 1 and 2, it is characterized in that: the periphery of buffer rack (5) is arranged with recoil spring (8), the upper end of recoil spring (8) is resisted against crossbeam (1), and the lower end of recoil spring (8) is resisted against lower pipe (2).

4. shock-absorptive frame of bicycle according to claim 1, it is characterized in that: between upper riser (6) and lower standing tube (7), be connected with spring (9), spring (9) and upper riser (6) and lower standing tube (7) coaxial.

5. the shock-absorptive frame of bicycle according to any one in claim 1,2 or 4, it is characterized in that: the lower end of upper riser (6) is connected with the piston rod (10) coaxial with it, the tube chamber of lower standing tube (7) is set to cylinder chamber, and piston rod (10) and cylinder chamber coordinate formation air cylinder.