CN220053720U - Frame for damping rear shock on wheel - Google Patents

Abstract

The frame comprises a rear upright post, wherein the upper part of the rear upright post is hinged with one end of a shock absorber, the other end of the shock absorber is hinged with a rear seat stay beam, the fork ends of the rear seat stay beam and the rear bottom fork beam are in cross connection, and the included angles of the inner sides of the rear seat stay beam and the rear bottom fork beam are acute angles or obtuse angles or right angles; the tail end of the rear bottom fork beam, which is far away from the fork end, is hinged with the lower part of the rear upright post or the underframe.

Description

Frame for damping rear shock on wheel

Technical Field

The utility model relates to the technical field of rear wheel shock absorption in electric vehicles, in particular to a frame for rear shock absorption on wheels.

Background

At present, in the era of more and more diversification of current electric vehicles, two-wheel electric vehicles are required to fully meet the personalized consumption demands of the market, and higher demands are put on the arrangement of shock absorbers, so that the market needs a single shock absorption structure electric two-wheel vehicle which can meet the comfort demands, reduce the weight and have personalized appearance effects;

aiming at the damping structure, on the original triangular damping telescopic structure, one side of the triangle is an elastic telescopic structure, and the structure has large lever force on an elastic piece so as to obtain a damping effect with large amplitude and high elasticity; for this structure, it is better to obtain elasticity, increase flexibility elasticity, and reduce cost and use the elastic member that the load is less, but triangle-shaped structure is limited to the lever structure of rear wheel, and triangle-shaped structure improvement space especially adopts single elastic member, is difficult to adjust to leverage point, and for this reason, needs to improve to current frame.

Disclosure of Invention

In view of the above, the present utility model aims to provide a vehicle frame with high elasticity, low structural cost, effective elastic force of the elastic member on the wheel, good damping effect, large elastic space, good elastic flexibility, and low cost and small load, which can meet the damping requirement.

The present utility model aims to solve one of the problems in the background art.

The technical scheme adopted by the utility model is as follows: in order to achieve the above and other related objects, the present utility model provides a rear shock absorbing frame on wheels, comprising a rear upright, wherein the upper part of the rear upright is hinged with one end of a shock absorber, the other end of the shock absorber is hinged with a rear seat stay beam, the fork ends of the rear seat stay beam and the rear bottom fork beam are in cross connection, and the included angles of the inner sides of the rear seat stay beam and the rear bottom fork beam are acute angles, obtuse angles or right angles; the tail end of the rear bottom fork beam, which is far away from the fork end, is hinged with the lower part of the rear upright post or the underframe.

The technical scheme provided by the utility model also has the following technical characteristics:

preferably, the rear upright post upper cross beam is perpendicular to the shock absorber and the rear upright post, or the rear upright post upper cross beam is parallel to the axle center of the rear wheel, or the included angle between the rear upright post upper cross beam and the axle center of the rear wheel is smaller than 10 degrees.

Preferably, the arrangement angle and the horizontal included angle of the shock absorber are smaller than 20 degrees, so that the shock absorption limit load is effectively reduced, the load of the bottom fork structure is reduced, and the weight of the whole vehicle is optimized.

Preferably, the rear pillar upper cross member is provided at an upper end of the rear pillar.

Preferably, the shock absorber is hinged with a U-shaped groove plate, and the U-shaped groove plate is connected with the upper beam of the rear upright post or the rear upright post.

Preferably, the cross connection parts of the fork ends of the rear seat stay beam and the rear bottom fork beam are rigidly connected or hinged.

Preferably, the fork end of the rear bottom fork beam is provided with a foot pedal.

Preferably, the auxiliary underframe is arranged on the underframe, the auxiliary underframe is arranged above the underframe, and two ends of the auxiliary underframe are connected with the underframe.

Preferably, a supporting beam is arranged between the auxiliary underframe and the underframe.

Preferably, the auxiliary underframe is provided with an arc beam close to the rear upright post section, and the arc beam is connected with the underframe and the rear upright post.

Preferably, a support panel is arranged at the intersection of the arc-shaped beam and the auxiliary underframe.

Preferably, the support panel is arranged in an arch shape, the lower end of the support panel is connected with the auxiliary underframe, and the support panel is connected with the rear upright post close to the vehicle tail side.

Preferably, the shock absorber is connected with the arc-shaped part of the top end of the rear seat stay beam, and the tail end of the shock absorber is provided with a snap-in piece.

Preferably, the engagement member is a U-shaped channel plate.

Preferably, the upper surface of the occluding part is attached to the upper end cambered surface of the rear seat stay beam, the lower surface of the occluding part is attached to the inner cambered surface of the rear seat stay beam, and the occluding part comprises a reinforcing bracket, wherein the reinforcing bracket wraps more than one third of the width of the rear seat stay beam and comprises one third of the width of the rear seat stay beam.

Preferably, the two sides of the lower end of the occluding member are provided with lugs in the horizontal direction.

Preferably, a plurality of fixing tabs are provided on the chassis or the sub chassis.

Preferably, the securing tabs are used to connect the battery compartment to the vehicle housing and other securing accessories.

Preferably, the shock absorber includes a spring and a sliding column.

Preferably, the chassis is a hyperbolic chassis.

The utility model has the following beneficial effects:

the utility model utilizes the four-bar space with a notch formed by the rear upright post, the rear seat stay beam and the rear bottom stay beam, and the shock absorber is arranged at the notch; when the rear seat stay beam and the rear bottom fork beam are hinged, a four-bar linkage mechanism is formed; the rear seat fork beam and the rear seat fork beam are rigidly connected to form a deformed triangle mechanism; the shock absorber is arranged above the rear wheel and is obliquely arranged at one side of the rear upright post compared with the rear upright post; the rear wheel is impacted, less leverage is adopted on the shock absorber, the expansion space of the shock absorber is increased, and the load required by the shock absorber is reduced;

thus, a better elastic damping effect is obtained; and compared with the original maintenance and replacement, the operation space is also convenient, and the adjustment and installation of the lower end of the shock absorber are not limited by the narrow space of the wheels and the rear upright post.

The utility model is provided with the rear seat stay beams in a crossed manner on the basis of the rear seat stay beams, improves the stress of the rear seat stay beams, increases the strength of the rear part of the whole frame, is stable and durable and reliable, and reduces the fatigue influence of the wheel shock absorption impact on the rear seat stay beams by utilizing the rear seat stay beams.

Drawings

FIG. 1 is a perspective view of a rear shock absorbing frame on a wheel in accordance with the present utility model;

FIG. 2 is a perspective view of a rear shock absorbing frame on a wheel of the present utility model;

FIG. 3 is a perspective view of a front view of a rear shock absorbing frame on wheels of the present utility model in a wheeled condition;

FIG. 4 is a block diagram of the wheel status of the top view of the rear shock absorbing frame on wheels of the present utility model;

in the figure:

1. frame of bicycle

2. Rear wheel

3. Rear bottom fork

4. Shock absorber

11. Rear column

12. Rear upright post upper cross beam

13. Headstock tube

14. Chassis frame

31. Rear seat stay beam

32. Rear bottom fork beam

33. Foot pedal

141. Auxiliary underframe

142. Support panel

143. The ear piece is fixed.

Detailed Description

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to be limiting.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

1-2, a rear shock-absorbing frame on wheels comprises a rear upright post 11, wherein the upper part of the rear upright post 11 is hinged with one end of a shock absorber 4, the other end of the shock absorber 4 is hinged with a rear seat stay beam 31, the fork ends of the rear seat stay beam 31 and a rear bottom fork beam 32 are in cross connection, and the included angles of the inner sides of the rear seat stay beam 31 and the rear bottom fork beam 32 are acute angles or obtuse angles or right angles; the rear bottom fork beam 32 is hinged to the lower portion or undercarriage 14 of the rear upright 11 at a position remote from the fork end.

The utility model has the following characteristics when implemented: the shock attenuation is effectual, and shock-absorbing structure main part atress is in the wheel top, and it is efficient to accept the impact force, and elasticity flexible space is big, reduces the requirement to bumper shock absorber 4.

Specifically, as shown in fig. 1-2, the rear pillar upper beam 12 is arranged perpendicular to the shock absorber 4 and the rear pillar 11, or the rear pillar upper beam 12 is arranged parallel to the axle center of the rear wheel 2, or the included angle between the rear pillar upper beam 12 and the axle center of the rear wheel 2 is smaller than 10 degrees; the rear pillar upper cross member 12 may serve as a mounting fulcrum for the seat.

Specifically, the rear pillar upper cross member 12 is disposed at the upper end of the rear pillar 11, and the position of the upper end can be well engaged with the seat and the rear pillar neutral position.

Specifically, as shown in fig. 1-4, the shock absorber 4 is hinged with a U-shaped groove plate, and the U-shaped groove plate is connected with the rear upright post upper cross beam 12 or the rear upright post 11; a shock absorber is a device for damping and reducing vibration, shock and noise of mechanical equipment, and is generally composed of one or more springs and a damper; the purpose is to reduce damage and destruction of equipment and structures by vibration and noise; the shock absorber can also improve the stability and durability of equipment and structures and prolong the service life;

the rear shock absorber on the electric vehicle is a device for reducing vibration and impact of rear wheels in the running process of the electric vehicle; usually consists of springs and dampers, and is installed in a rear suspension system of an electric vehicle; the rear shock absorber can buffer and absorb vibration and impact caused by uneven road surfaces and obstacles, so that the travelling comfort and stability of the electric vehicle are improved, and meanwhile, the damage risk of the vehicle and passengers is reduced; the electric motor car is provided with the rear shock absorbers of different types, so that the performance and the comfort of the electric motor car can be improved.

Specifically, as shown in fig. 1-4, the cross connection parts of the fork ends of the rear seat fork beam 31 and the rear seat fork beam 32 are rigidly connected or hinged; rigid connection and articulation are two common ways of mechanically connecting, the differences between them are as follows: rigid connection: rigid connection refers to tightly connecting two or more parts together by means of bolts, welding, etc. to form a whole, wherein there is no room for relative movement between the parts; the rigid connection has the characteristics of simple structure, high reliability, high rigidity and the like, and is generally used in mechanical devices requiring high precision and high rigidity; and (3) hinged connection: the hinged connection means that two parts are connected together through a hinge or a pin shaft and other connecting pieces to form a connection capable of rotating relatively; the hinged connection has the characteristics of free rotation, convenient maintenance, reduced stress concentration and the like, and is used for parts needing relative movement;

in this embodiment, it is considered that one of the two types of shock absorber can meet the use requirement, that is, the elastic shock absorbing structure of the triangle formed by rigidity or the elastic shock absorbing structure of the four-bar linkage can be adopted, compared with the elastic movable space of the four-bar linkage, the triangular shock absorbing structure compared with the triangular shock absorbing structure can obtain the improved shock absorbing effect because the shock absorber 4 is arranged above the wheel 2.

Specifically, as shown in fig. 1-2, the fork end of the rear bottom fork beam 32 is provided with a foot pedal 33; the foot rest 33 of the electric vehicle is a device for supporting and adjusting the body posture of the occupant's feet; is usually located at the bottom of an electric vehicle and is made of metal or plastic material; the design and the height of the foot pedal can be adjusted according to different types of electric vehicles and the requirements of passengers; the foot pedal is also provided with an anti-skid design to improve the safety and comfort of the rider; when the electric vehicle is driven, an occupant can control the speed and the direction of the vehicle through the foot pedals, and meanwhile, the body posture is adjusted to adapt to different road and weather conditions.

Specifically, the chassis 14 is provided with a sub chassis 141, the sub chassis 141 is arranged above the chassis 14, and two ends of the sub chassis 141 are connected with the chassis 14; providing the sub chassis 141 corresponds to structural reinforcement of the chassis 14, and the arc-shaped portions of the two are identical in shape, and the sub chassis 141 is only required to be mounted on other parts without drying at both end portions; the electric vehicle is arranged above rather than below, so that the influence on the lower space of the electric vehicle, namely the height space running below the underframe, is avoided.

Specifically, as shown in fig. 1-4, a supporting beam is arranged between the auxiliary underframe 141 and the underframe 14; in the chassis structure of the present utility model, the chassis 14 is the main support structure that carries the electric vehicle, and is responsible for bearing the weight and various loads of the electric vehicle; in order to improve the rigidity and stability of the chassis 14, a sub chassis 141 is provided on the chassis for reinforcement; the effect of this is mainly the following:

improving the load carrying capacity and stability of the chassis 14: the arrangement of the auxiliary underframe 141 can increase the bearing area and the rigidity of the underframe 14, thereby improving the bearing capacity and the stability of the underframe 14 and reducing the vibration and the deformation in the riding process of the electric vehicle; stress concentration is reduced: during riding of the electric vehicle, the underframe 14 is often subjected to complex load, and stress concentration is easy to form, so that the underframe is damaged; the auxiliary chassis 141 corresponds to the auxiliary chassis, and is provided with a function of dispersing the load of the chassis 14, reducing stress concentration, improving the durability and the service life of the chassis 14; the maintenance and the replacement are convenient: the arrangement of the auxiliary underframe 141 can enable the structure of the bottom of the electric vehicle to be more stable and tidy, prolong the service life of the underframe 14, reduce replacement and reduce maintenance and replacement cost and time.

Specifically, the section of the auxiliary underframe 141, which is close to the rear upright post 11, is provided with an arc beam, and the arc beam connects the underframe 14 and the rear upright post 11; the arc-shaped beam is a beam with an arc-shaped section and is characterized by light structure, high rigidity and strong bending resistance; the arc roof beam that sets up is used for strengthening structural stability, and its effect mainly has following points:

the structural strength is increased: the cross section of the arc beam has excellent bending resistance, so that the strength and the rigidity of the structure can be effectively increased, and the stability of the structure when bearing load is improved;

and (3) concentrated dispersed load: in some large-span and large-load structures, the condition of concentrated load is easy to occur, so that the structure is damaged; the arc-shaped beam is adopted to disperse the load to each part of the beam, so that the load concentration is reduced, and the stability of the structure is improved;

the weight of the structure is reduced: the arc beam has a light structure, can reduce the dead weight of the structure, reduce the load of the structure and reduce the stress of the structure, thereby improving the stability of the structure.

Specifically, a support panel 142 is disposed at the intersection of the arc beam and the sub-chassis 141;

the support panel 142 is a structural member for supporting and reinforcing mechanical equipment and its components; the function of the support panel 142 is mainly as follows:

the structural strength is increased: the support panel 142 can effectively increase the strength and rigidity of the structure, thereby improving the stability and safety of the structure when bearing loads;

balance load: in the structure, the problem of stress concentration easily occurs when the panel bears load is avoided, and the arrangement of the support panel can balance the load and reduce the stress concentration degree, so that the risks of deformation and damage of the structure are reduced; the arrangement of the support panel can enable the structure to be more neat and is used for supporting other electric vehicle components required to be borne.

Specifically, the support panel 142 is arranged in an arch shape, the lower end of the support panel 142 is connected with the auxiliary chassis 141, and the support panel 142 is connected with the rear pillar 11 near the vehicle tail side.

Specifically, the damper 4 is connected to the arc position at the top end of the rear seat stay 31, and the end of the damper 4 is provided with a snap-in piece;

the engagement piece is used for realizing engagement connection of two or more parts so as to be convenient for transmitting power and bearing load; the occluding part occludes the arc-shaped part in the structure, and the function of the occluding part occludes the arc-shaped part is mainly to realize connection and load sharing: the movable engagement arc-shaped piece can connect two parts together; adjusting the position: the movable engagement arc-shaped piece can enable two connected parts to meet specific position and angle requirements by adjusting the position and angle of the movable engagement arc-shaped piece, so that more accurate movement is realized; the welding can be performed after the engagement, so that the positioning and the installation are convenient;

specifically, the upper surface of the engaging piece is attached to the upper end cambered surface of the rear seat stay beam 31, the lower surface of the engaging piece is attached to the inner cambered surface of the rear seat stay beam 31, the engaging piece comprises a reinforcing bracket, and the reinforcing bracket wraps more than one third of the width of the rear seat stay beam 31 and comprises one third of the width; the occluding part occludes the arc-shaped part and can share the load between the connecting parts to a larger area through the occluding area, so that the stress concentration of parts is reduced, and the stability and safety of mechanical equipment are improved.

Specifically, two sides of the lower end of the occluding piece are provided with lugs in the horizontal direction; the protection mechanism is used for preventing and limiting interaction between two or more parts during movement, so that accidents caused by movement of the two parts beyond a safety range are prevented; particularly, the device has the effects of ensuring safety, limiting the movement range of the part by collision and limit, and avoiding accidents such as collision and impact in the movement process; overload prevention: the collision limit can detect the load of the component, and when the load exceeds a preset range, the movement can be limited, so that accidents caused by overload can be avoided; the precision is improved, and the position and the angle can be limited by the interference limit, so that the precision and the stability of the mechanical equipment are improved; the reliability is enhanced, and the reliability and stability of the reinforced component in linkage can be improved by the interference limit.

Specifically, a plurality of fixing lugs 143 are provided on the chassis 14 or the sub chassis 141; the securing tabs 143 are used to mount other accessories.

Specifically, the securing tabs 143 are used to connect the battery compartment to the vehicle housing and other securing accessories.

Specifically, the damper 4 includes a spring and a slide column.

In general, as shown in FIGS. 1-4, the present utility model, when implemented, has the following features: the elastic shock absorption effect is good, and especially the shock absorber 4 is arranged above the wheel 2, so that the movable space of the elastic shock absorption is greatly improved, and the operation space for installation and maintenance of the shock absorber 4 is also improved.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. The frame with the rear shock absorption on the wheels comprises a rear upright post (11), and is characterized in that one end of a shock absorber (4) is hinged to the upper part of the rear upright post (11), the other end of the shock absorber (4) is hinged to a rear seat stay beam (31), fork ends of the rear seat stay beam (31) and a rear seat stay beam (32) are in cross connection, and an included angle between the inner sides of the rear seat stay beam (31) and the rear seat stay beam (32) is an acute angle or an obtuse angle or a right angle; the rear bottom fork beam (32) is hinged with the lower part of the rear upright post (11) or the underframe (14) far away from the fork end.

2. The wheel-mounted rear shock-absorbing frame according to claim 1, wherein the rear upright upper beam (12) is arranged perpendicular to the shock absorber (4) and the rear upright (11), or the rear upright upper beam (12) is arranged parallel to the axle center of the rear wheel (2), or the included angle between the axle centers of the rear upright upper beam (12) and the rear wheel (2) is smaller than 10 degrees; the rear upright post upper cross beam (12) is arranged at the upper end of the rear upright post (11).

3. A rear-on-wheel shock-absorbing frame as claimed in claim 1, wherein the shock absorber (4) is hinged to a U-shaped channel plate, which is connected to the rear pillar upper cross member (12) or the rear pillar (11); the arrangement angle of the shock absorber (4) is smaller than 20 degrees with the horizontal included angle.

4. A rear shock absorbing frame on wheels according to claim 1, wherein the cross-connection of the fork ends of the rear seat stay (31) and the rear bottom fork (32) is rigid or hinged.

5. The rear wheel shock-absorbing frame according to claim 1, wherein a sub chassis (141) is provided on the chassis (14), the sub chassis (141) is provided along an upper side of the chassis (14), and both ends of the sub chassis (141) are connected to the chassis (14);

and a corbel is arranged between the auxiliary underframe (141) and the underframe (14).

6. A rear shock absorbing frame on wheels according to claim 1, characterized in that the sub-frame (141) is provided with an arc beam near the rear pillar (11) section, the arc beam connecting the frame (14) and the rear pillar (11).

7. A rear wheel shock absorbing frame according to claim 1, characterized in that a support panel (142) is provided at the intersection of the arched beam and the sub-frame (141); the support panel (142) is arranged in an arch shape, the lower end of the support panel (142) is connected with the auxiliary underframe (141), and the support panel (142) is connected with the rear upright post (11) close to the vehicle tail side.

8. A rear shock absorbing frame on wheels according to claim 1, wherein the shock absorber (4) is connected to the top end arc of the rear seat stay (31), and the end of the shock absorber (4) is provided with a snap-in member.

9. The rear shock absorbing frame on wheels of claim 1, wherein the upper surface of the engaging member engages the upper end arc surface of the rear seat stay (31), the lower surface of the engaging member engages the inner arc surface of the rear seat stay (31), and the engaging member includes a reinforcing bracket, and the reinforcing bracket wraps more than one third, including one third, of the width of the rear seat stay (31).

10. The rear shock absorbing frame for a wheel according to claim 1, wherein the lower end of the engaging member is provided with horizontal lugs on both sides thereof; a plurality of fixed lugs (143) are arranged on the underframe (14) or the auxiliary underframe (141); the fork end part of the rear bottom fork beam (32) is provided with a pedal plate (33); the fixing lug piece (143) is used for connecting the battery box with the car shell and fixing fittings.