A lightweight intelligent RV suspension axle structure

Abstract

The present invention relates to the technical field of suspension axle structures, specifically a lightweight intelligent RV suspension axle structure, including an upper top seat, a piston sleeve arranged inside the upper top seat, an airbag for sealing between the piston sleeve and the upper top seat, a shock absorber arranged inside the piston sleeve and a dust cover arranged below the upper top seat, and also includes a heat dissipation component connecting the upper top seat with the dust cover, the heat dissipation component includes multiple groups of sealing rings and multiple groups of connecting parts; elastic sheets are fixedly connected between the heat dissipation fins, the heat dissipation fins are in the shape of a quarter arc, the center angle of the heat dissipation fins is between 85° and 90°, the lowest point of the heat dissipation fins is lower than the highest point of the heat dissipation fins of the next group, and the connecting parts connect the multiple groups of sealing rings in series. The present invention uses a heat dissipation component to replace an aluminum protective cover to protect the airbag. During the driving of the RV, the subsequent conversion of the motion state of the heat dissipation component can optimize the flow path of hot and cold air to improve the heat dissipation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of suspension axle structures, and in particular to a lightweight intelligent RV suspension axle structure. Background Art

[0002] Lightweighting refers to the process of reducing product weight while maintaining or improving product performance by using lightweight materials, optimizing design, improving manufacturing processes, etc. The purpose of lightweighting is usually to improve energy efficiency, reduce energy consumption, reduce emissions, improve handling performance and response speed, and reduce production and transportation costs.

[0003] As a high-end mobile living space, the choice of suspension axles for lightweight smart RVs has a crucial impact on the performance of the entire vehicle. Air suspension has become an ideal choice for suspension axles for lightweight smart RVs due to its significant advantages in light weight, comfort, and handling. By adopting air suspension, smart RVs can achieve higher energy efficiency and lower operating costs while ensuring passenger comfort, meeting the needs of the modern high-end RV market.

[0004] Faced with complex road conditions, such as potholes and bumps, the suspension system of the smart RV needs to be able to automatically adjust to avoid the chassis being too low and colliding with the raised road surface. In the prior art, in order to extend the service life of the air suspension, an aluminum protective cover is installed on the outside of the airbag of the air suspension. However, although aluminum materials have good thermal conductivity, the heat dissipation effect is still limited in a closed environment. If effective heat dissipation is not performed, the temperature of the shock absorber oil will rise, affecting the vibration reduction effect, resulting in increased body vibration, abnormal driving noise and other problems. And when driving in the wild, especially on unpaved roads, stone ejection can easily cause damage to the suspension system, including deformation of the aluminum protective cover, affecting the use of the air suspension.

[0005] Therefore, a lightweight intelligent RV suspension axle structure is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a lightweight intelligent RV suspension axle structure. By using a heat dissipation component instead of an aluminum protective cover to protect the airbag, the subsequent conversion of the movement state of the heat dissipation component during the driving of the RV can optimize the flow path of cold and hot air to improve the heat dissipation efficiency.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A lightweight intelligent RV suspension axle structure comprises an upper top seat, a piston sleeve arranged inside the upper top seat, an airbag for sealing between the piston sleeve and the upper top seat, a shock absorber arranged inside the piston sleeve and a dust cover arranged below the upper top seat, and also comprises a heat dissipation component connecting the upper top seat with the dust cover, the heat dissipation component comprises multiple groups of sealing rings and multiple groups of connecting pieces; multiple groups of the sealing rings are sequentially stacked and arranged between the upper top seat and the dust cover, and the sealing rings are composed of four groups of heat sinks, the heat sinks are made of rubber material, elastic sheets are fixedly connected between the heat sinks, the heat sinks are in the shape of a quarter arc, and the central angle of the heat sinks is between 85° and 90°. When multiple groups of the sealing rings are unfolded, the multiple groups of the heat sinks move synchronously up and down and separate, and the lowest point of the heat sink is lower than the highest point of the heat sink of the next group, and the connecting piece connects the multiple groups of sealing rings in series.

[0009] It can be seen that there are many existing heat dissipation structures for air suspensions. Combined with the usage scenarios: Generally, the air suspension is cooled by generating air convection through a fan, and the hot air is guided out of the device for heat dissipation, or a refrigerant is used to directly or indirectly contact the power battery, and the heat generated in the battery pack is taken away by the circulation of liquid fluid to achieve the heat dissipation effect. Compared with the above-mentioned solutions, this solution adopts a more energy-saving and space-saving method for heat dissipation, which conforms to the lightweight characteristics of air suspension. By using the air suspension to adjust the height of the RV chassis and drive the subsequent conversion of the movement state of the heat dissipation component, the flow path of hot and cold air can be optimized to improve the heat dissipation efficiency.

[0010] Preferably, an arc plate is fixedly connected to the outer ring of the heat sink, a baffle is fixedly installed on the inner ring of the heat sink, and a convex block is fixedly installed on the heat sink, the convex block is arranged between the arc plate and the baffle, and the cross section of the convex block is symmetrically undulating, the height of the baffle is higher than the arc plate, and the cross section of the channel formed between the multiple groups of heat sinks is "W" shaped. After the cold air enters the channel, due to the design and structure of the channel, the direct collision between the cold air and the hot air generated inside the air suspension is avoided. When the cold air flows to the piston, the hot air will also flow from the inside of the air suspension to the side of the cold air, forming a circulating flow state.

[0011] Preferably, the connecting member includes two groups of grooves opened on the protrusion, the groove is arranged in the middle position of the protrusion, a hinge rod and a spring fixedly connected to the hinge rod are fixedly connected in the groove, a group of multiple groups of springs close to the upper top seat is fixedly installed with an extrusion plate, the extrusion plate is fixedly installed at the bottom of the upper top seat, and multiple groups of connecting members are sequentially arranged between multiple groups of heat sinks. When the RV needs to raise the chassis of the RV when driving in a pothole, the multiple groups of heat sinks are spread out under the action of the connecting member, and the multiple groups of heat sinks are in a parallel state. Similarly, when the RV needs to lower the chassis of the RV, the upper top seat is pressed down so that the multiple groups of heat sinks are superimposed together, and they are in a closed state between the sealing rings on the air suspension, which can protect the airbag without affecting the heat dissipation.

[0012] Preferably, a counterweight is fixedly mounted on the arc plate, and the counterweight is triangular. When the RV needs to raise the chassis when driving on a pothole, the multiple groups of heat sinks are spread out under the action of the connecting piece. When spreading out, the outer ring of the arc plate is heavier under the action of the counterweight, so that the heat sink tilts downward toward the outer ring of the arc plate when it is spread out, which ensures the heat dissipation effect while preventing stones from hitting the airbag and damaging the airbag.

[0013] Preferably, the cross section of the extrusion plate is "L" shaped, and the lower end of the extrusion plate is in contact with the top of the counterweight, and an extension plate is fixedly mounted at the bottom of the arc plate, the extension plate is in an inclined state, and the bottom of the extension plate is provided with an arc surface, and the arc surface corresponds to the top of the counterweight. During driving, the air bag will continuously absorb shock according to the road conditions, and during the operation of the shock absorber, the extrusion plate will be driven to squeeze the edge of the heat sink, and after the extrusion, the inlet of the hot air entering the heat sink becomes larger, and the hot air will fill the space between the heat sinks.

[0014] Preferably, the angle between the extension plate and the arc plate is greater than 120°, and when the extrusion plate presses down the top of the counterweight block to fit the arc surface. When the vehicle is driving, wind will enter from the head of the vehicle, and when encountering the air suspension, the wind will enter between the two groups of extension plates along the edge of the sealing ring.

[0015] Preferably, the baffle is provided with slots, and the slots are arranged in a circular array on the baffle. The slots are cold air inlets to prevent local overheating of the heat sink.

[0016] Preferably, the arc plate is provided with circular holes, and the circular holes penetrate the arc plate, and the circular holes are arranged in a plurality of groups in a circular array on the arc plate. When using the air conditioner in summer, the moisture in the hot air in the car will condense into water droplets on the surface of the evaporator heat absorption fins with a lower temperature, and then be discharged out of the car through the pipeline. These water droplets will be discharged from the front or middle of the vehicle chassis, and some of the water droplets will flow to the ground along the air suspension. In order to avoid water accumulation on the heat sink when it is unfolded, circular holes are provided to facilitate water discharge.

[0017] Preferably, a plurality of groups of cavities are formed on the edge of the extension plate, and the plurality of groups of cavities are arranged between the two groups of circular holes.

[0018] Preferably, a connecting plate is fixedly mounted on the baffle, and the connecting plate is bent, and the bending angle is greater than 120°. When the heat sink is dissipating heat, the connecting plate will change the air flow path to improve the heat transfer efficiency and promote hot and cold replacement.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the air suspension adjusts the height of the RV chassis, the heat sink will expand or close with the height of the chassis, and the heat sink will dissipate heat for the air suspension regardless of whether it is expanded or closed. When it is expanded, the outer circle of the arc plate tilts downward under the action of the counterweight, so that the lowest point of multiple groups of heat sinks is lower than the highest point of the next group of heat sinks, which ensures the heat dissipation effect while preventing stones from hitting the airbag and damaging the airbag. The lifting speed of the airbag protected by open protection is slightly higher than that of closed protection made of aluminum material.

[0021] 2. When cold air flows directly into the air suspension system through specific slots, it meets the hot air inside. The temperature difference between the two forms an obvious temperature gradient, the so-called front, which pushes the hot air to accelerate and flow out from the gap between the bottom of the connecting plate and the heat sink. When the rest of the hot air rises to the airbag, it moves along the lower surface of the airbag to the gap between the topmost heat sink and the extrusion plate and flows out. The cold air at the bottom replenishes it, forming an air circulation. This accelerates the replacement of hot and cold air and can also bring the hot air generated by the airbag during operation out of the air suspension.

[0022] 3. When the edge of the heat sink is under force, the arc surface is pressed down with the counterweight as the fulcrum, and the inner circle of the heat sink will tilt up. At this time, the inlet of hot air entering the heat sink becomes larger and quickly fills into the space between the heat sinks. When the vehicle is driving, the wind will enter from the head of the vehicle. When encountering the air suspension, the wind will enter between the two sets of extension plates along the edge of the sealing ring. When the heat sink is opened, cold air will quickly enter the air suspension from the edge of the sealing ring and exchange with the internal air. When the RV needs to maintain a certain height during driving, the state of the heat sink will not change, but the shock absorber will drive the extrusion plate to continuously squeeze the edge of the heat sink during operation, so as to quickly exchange hot and cold air and promote hot and cold replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a lightweight intelligent RV suspension axle structure of the present invention;

[0024] Figure 2 A cross-sectional view of a lightweight intelligent RV suspension axle structure of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the sealing ring of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the elastic sheet of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the heat sink of the present invention;

[0028] Figure 6 It is a schematic diagram of the airflow direction structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the heat sink of the present invention during extrusion;

[0030] In the figure: 1. upper seat; 2. piston sleeve; 3. airbag; 4. shock absorber; 5. dust cover; 6. heat dissipation assembly; 61. sealing ring; 62. connecting piece; 611. heat sink; 612. elastic sheet; 7. arc plate; 8. baffle; 9. protrusion; 621. groove; 622. hinge rod; 623. spring; 10. extrusion plate; 11. counterweight; 12. extension plate; 13. arc surface; 14. angle; 15. notch; 16. round hole; 17. cavity; 18. connecting plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] See also Figures 1 to 4 The present invention provides a lightweight intelligent RV suspension axle structure, and the technical solution is as follows:

[0034] A lightweight intelligent RV suspension axle structure, comprising an upper top seat 1, a piston sleeve 2 arranged inside the upper top seat 1, an airbag 3 for sealing between the piston sleeve 2 and the upper top seat 1, a shock absorber 4 arranged inside the piston sleeve 2 and a dust cover 5 arranged below the upper top seat 1, and also comprising a heat dissipation component 6 connecting the upper top seat 1 with the dust cover 5, the heat dissipation component 6 comprising a plurality of sealing rings 61 and a plurality of connecting members 62; the plurality of sealing rings 61 are sequentially stacked and arranged between the upper top seat 1 and the dust cover 5 The sealing ring 61 is composed of four groups of heat sinks 611, the heat sinks 611 are made of rubber, elastic sheets 612 are fixedly connected between the heat sinks 611, the heat sinks 611 are in the shape of a quarter arc, and the central angle of the heat sink 611 is between 85° and 90°. When multiple groups of sealing rings 61 are unfolded, the multiple groups of heat sinks 611 move synchronously up and down and separate, and the lowest point of the heat sink 611 is lower than the highest point of the heat sink 611 of the next group, and the connecting piece 62 connects the multiple groups of sealing rings 61 in series.

[0035] In the prior art, when the air suspension does not dissipate heat effectively, the temperature of the shock absorber oil will rise, affecting the vibration reduction effect, leading to increased body vibration, abnormal driving noise and other problems. In addition, when driving outdoors, especially on unpaved roads, stones flying around will cause the aluminum shield to deform, affecting the use of the air suspension;

[0036] The sealing rings 61 in the present scheme are stacked in sequence between the upper top seat 1 and the dust cover 5. In the initial state, the RV does not need to change the height of the chassis. When the sealing rings 61 are stacked in sequence, the chassis of the RV is at the lowest setting. When the chassis of the RV needs to be raised, the air compressor injects compressed air into the top of the upper top seat 1 to inflate the airbag 3, so that the airbag 3 expands and contracts, thereby propping up the upper top seat 1 upward to adjust the height of the RV. When the height of the RV is adjusted upward, the state of the sealing ring 61 changes, and the distance between the multiple groups of sealing rings 61 gradually increases. Under the action of the elastic sheet 612, the heat sink 611 is movably connected, and the shape of a single group of sealing rings 61 can be changed when unfolded, so that the sealing ring 61 can protect the interior of the air suspension while ensuring heat dissipation to prevent stones from being ejected and possibly causing damage to the interior of the air suspension.

[0037] Embodiment 2

[0038] As an embodiment of the present invention, refer to Figures 2 to 7 The outer ring of the heat sink 611 is fixedly connected with an arc plate 7, the inner ring of the heat sink 611 is fixedly installed with a baffle 8, and the heat sink 611 is fixedly installed with a protrusion 9, the protrusion 9 is arranged between the arc plate 7 and the baffle 8, and the cross section of the protrusion 9 is symmetrically undulating, the height of the baffle 8 is higher than the arc plate 7, and the cross section of the channel formed between the multiple groups of heat sinks 611 is "W" shaped. When the multiple groups of heat sinks 611, the outside air enters from between the multiple groups of heat sinks 611. After the cold air enters between the two groups of heat sinks, the cold air sinks while the hot air flows out from the gap between the connecting plate 18 and the heat sink 611. The cold air moves in the channel in a "W" path. When the cold air encounters the angle 14 between the baffle 8 and the heat sink, the cold air mixes with the hot air upward in the channel to prevent the heat sink 611 from being locally overheated when the hot air passes between the heat sinks 611.

[0039] Furthermore, the connecting member 62 includes two groups of grooves 621 opened on the protrusion 9, the groove 621 is arranged in the middle position of the protrusion 9, a hinge rod 622 is fixedly connected in the groove 621, and a spring 623 is fixedly connected to the hinge rod 622, a group of multiple groups of springs 623 is close to the upper top seat 1 and an extrusion plate 10 is fixedly installed on the extrusion plate 10, and the extrusion plate 10 is fixedly installed on the bottom of the upper top seat 1, and the multiple groups of connecting members 62 are arranged in sequence between the multiple groups of heat sinks 611. When the RV needs to raise the chassis when driving on a pothole, the multiple groups of heat sinks 611 are spread out under the action of the connecting piece 62, and the multiple groups of heat sinks 611 are in parallel. Similarly, when the RV needs to lower the chassis, the upper top seat 1 is pressed down to stack the multiple groups of heat sinks 611 together, forming a closed state between the sealing rings 61 on the air suspension, which can protect the airbag 3 without affecting the heat dissipation. When the connecting piece 62 is pressed down, the multiple groups of heat sinks 611 are pressed down in parallel due to the position of the connecting piece 62.

[0040] Furthermore, a counterweight 11 is fixedly mounted on the curved plate 7, and the counterweight 11 is triangular. When the RV is traveling in a pothole and needs to raise the chassis of the RV, the multiple groups of heat sinks 611 are spread out under the action of the connecting member 62. When spreading out, the outer ring of the curved plate 7 is heavier under the action of the counterweight 11, so that the heat sink 611 is tilted downward toward the outer ring of the curved plate 7 when it is spread out, so that the lowest point of the heat sink 611 is lower than the highest point of the heat sink 611 of the next group, which ensures the heat dissipation effect and prevents stones from hitting the airbag 3 and damaging the airbag 3.

[0041] Furthermore, the baffle plate 8 is provided with slots 15, which are arranged in a circumferential array on the baffle plate 8. The slots 15 are cold air inlet ports, and part of the cold air directly enters the air inside from the slots 15, and the other part is mixed with the hot air.

[0042] Furthermore, circular holes 16 are provided on the arc plate 7, and the circular holes 16 penetrate the arc plate 7. The circular holes 16 are arranged in a circular array on the arc plate 7. When the air conditioner is used in summer, the moisture in the hot air in the car will condense into water droplets on the surface of the evaporator heat absorption fins with a lower temperature, and then be discharged out of the car through the pipeline. These water droplets will be discharged from the front or middle of the vehicle chassis, and some water droplets will flow to the ground along the air suspension. In order to avoid water accumulation when the heat sink 611 is unfolded, the circular holes 16 are provided to facilitate the discharge of water.

[0043] Furthermore, multiple groups of cavities 17 are formed on the edge of the extension plate 12, and the multiple groups of cavities 17 are arranged between the two groups of circular holes 16. When the hot air flows out from the gap between the connecting plate 18 and the heat sink 611, the hot air flows out directly from the cavity 17.

[0044] Furthermore, a connecting plate 18 is fixedly mounted on the baffle 8. The connecting plate 18 is bent, and the bending angle is greater than 120°. When the heat sink 611 is dissipating heat, the connecting plate 18 will change the air flow path to improve the heat transfer efficiency and promote the replacement of cold and hot.

[0045] In summary, in the prior art, when the air suspension does not dissipate heat effectively, the temperature of the shock absorber oil will rise, affecting the vibration reduction effect, leading to increased body vibration, abnormal driving noise and other problems. Moreover, when driving in the wild, especially on unpaved roads, stones will cause the aluminum protective cover to deform, affecting the use of the air suspension;

[0046] The sealing rings 61 in this scheme are sequentially stacked and arranged between the upper top seat 1 and the dust cover 5. In the initial state, the RV does not need to change the height of the chassis. When the sealing rings 61 are sequentially stacked, the chassis of the RV is at the lowest setting. When the chassis of the RV needs to be raised, the air compressor injects compressed air into the top of the upper top seat 1 to inflate the airbag 3, so that the airbag 3 is stretched and contracted, thereby propping up the upper top seat 1 to adjust the height of the RV. When the height of the RV is adjusted upward, the multiple groups of heat sinks 611 are driven to spread out under the action of the connecting member 62. When spreading out, the outer circle of the arc plate 7 is heavier under the action of the counterweight block 11, so that the heat sink 611 tilts downward toward the outer circle of the arc plate 7 when it is unfolded, so that the lowest point of the heat sink 611 is lower than the highest point of the heat sink 611 of the next group, which ensures the heat dissipation effect while preventing stones from hitting the airbag 3 and damaging the airbag 3;

[0047] When the height of the RV chassis continues to increase, the multiple groups of heat sinks 611 are in a state of continuous dispersion, and outside air enters from between the multiple groups of heat sinks 611. After the cold air enters between the two groups of heat sinks, the hot air flows out from the gap between the connecting plate 18 and the heat sink 611. The cold air moves in a "W" path in the channel. When the cold air encounters the angle 14 between the baffle 8 and the heat sink, a part of the cold air mixes with the hot air upward in the channel to prevent local overheating of the heat sink 611 when the hot air passes between the heat sink 611. The remaining cold air directly enters the air suspension from the slot 15 to dissipate heat inside the air suspension. When the cold air directly enters the air suspension from the slot 15, the cold air and the hot air are in direct contact, causing the front to accelerate the hot air to flow out from the gap between the bottom of the connecting plate 18 and the heat sink 611. When part of the hot air rises to the airbag 3, it moves along the lower surface of the airbag 3 to the gap between the topmost heat sink 611 and the extrusion plate 10 and flows out to be supplemented by the cold air at the bottom, forming an air circulation.

[0048] Embodiment 3

[0049] As an embodiment of the present invention, refer to Figures 4 to 7 The cross section of the extrusion plate 10 is "L" shaped, and the lower end of the extrusion plate 10 is in contact with the top of the counterweight 11. The bottom of the arc plate 7 is fixedly installed with an extension plate 12, which is in an inclined state. The bottom of the extension plate 12 is provided with an arc surface 13, and the arc surface 13 corresponds to the top of the counterweight 11. During driving, the airbag 3 will continuously absorb shock according to the road conditions. During the operation of the shock absorber 4, the extrusion plate 10 will be driven to squeeze the edge of the heat sink 611. When the edge of the heat sink 611 is squeezed, since the heat sink 611 is made of rubber, the outer edge of the multiple groups of heat sinks 611 is squeezed, and the edge of the heat sink 611 is stressed. The arc surface 13 is pressed down with the counterweight 11 as the fulcrum, and the inner circle of the heat sink 611 will tilt up. At this time, the inlet of the hot air entering the heat sink 611 becomes larger, and the hot air will fill the space between the heat sinks 611.

[0050] Furthermore, the angle 14 between the extension plate 12 and the arc plate 7 is greater than 120°, and when the extrusion plate 10 presses down the top of the counterweight 11, it fits the arc surface 13. When the vehicle is driving, wind will enter from the head of the vehicle, and when it encounters the air suspension, the wind will enter between the two groups of extension plates 12 along the edge of the sealing ring 61.

[0051] In summary, during driving, the air bag 3 will continuously absorb shock according to the road conditions, and the shock absorber 4 will drive the extrusion plate 10 to continuously squeeze the edge of the heat sink 611 during operation. When the edge of the heat sink 611 is squeezed, since the heat sink 611 is made of rubber, the outer edge of the multiple groups of heat sinks 611 is squeezed, and the edge of the heat sink 611 is subjected to force. The arc surface 13 is pressed down with the counterweight block 11 as a fulcrum, and the inner circle of the heat sink 611 will tilt up. At this time, the inlet of hot air entering the heat sink 611 becomes larger and the hot air will fill the space between the heat sinks 611. When the vehicle is driving, wind will enter from the head part of the vehicle. When encountering the air suspension, the wind will enter between the two groups of extension plates 12 along the edge of the sealing ring 61. When the heat sink 611 is opened, the cold air quickly enters the air suspension from the edge of the sealing ring 61 to exchange with the internal air, thereby driving the heat sink 611 to continuously open and close during the shock absorption of the air bag 3 to quickly exchange hot and cold air, thereby promoting hot and cold replacement.

[0052] Working principle: In the existing technology, when the air suspension does not effectively dissipate heat, the temperature of the shock absorber oil will rise, affecting the vibration reduction effect, leading to increased body vibration, abnormal driving noise and other problems. And when driving in the wild, especially on unpaved roads, stones will cause the aluminum shield to deform, affecting the use of the air suspension;

[0053] The sealing rings 61 in this scheme are sequentially stacked and arranged between the upper top seat 1 and the dust cover 5. In the initial state, the RV does not need to change the height of the chassis. When the sealing rings 61 are sequentially stacked, the chassis of the RV is at the lowest setting. When the chassis of the RV needs to be raised, the air compressor injects compressed air into the top of the upper top seat 1 to inflate the airbag 3, so that the airbag 3 is stretched and contracted, thereby propping up the upper top seat 1 to adjust the height of the RV. When the height of the RV is adjusted upward, the multiple groups of heat sinks 611 are driven to spread out under the action of the connecting member 62. When spreading out, the outer circle of the arc plate 7 is heavier under the action of the counterweight block 11, so that the heat sink 611 tilts downward toward the outer circle of the arc plate 7 when it is unfolded, so that the lowest point of the heat sink 611 is lower than the highest point of the heat sink 611 of the next group, which ensures the heat dissipation effect while preventing stones from hitting the airbag 3 and damaging the airbag 3;

[0054] When the height of the RV chassis continues to increase, the multiple groups of heat sinks 611 are in a state of continuous dispersion, and outside air enters from between the multiple groups of heat sinks 611. After the cold air enters between the two groups of heat sinks, the hot air flows out from the gap between the connecting plate 18 and the heat sink 611. The cold air moves in a "W" path in the channel. When the cold air encounters the angle 14 between the baffle 8 and the heat sink, a part of the cold air mixes with the hot air upward in the channel to prevent local overheating of the heat sink 611 when the hot air passes between the heat sink 611. The remaining cold air directly enters the air suspension from the slot 15 to dissipate the heat inside the air suspension. When the cold air directly enters the air suspension from the slot 15, the cold air and the hot air are in direct contact, causing the front to accelerate the hot air to flow out from the gap between the bottom of the connecting plate 18 and the heat sink 611; part of the hot air flows out from the gap between the connecting plate 18 and the heat sink 611, and when part of the hot air rises to the airbag 3, it moves along the lower surface of the airbag 3 to the gap between the topmost heat sink 611 and the extrusion plate 10 and flows out to be supplemented by the cold air at the bottom, and when passing through the airbag 3, it will drive the hot air formed on the surface of the airbag 3 to form an air circulation.

[0055] And when in driving, the air bag 3 will continuously absorb shock according to the road conditions, and the shock absorber 4 will drive the extrusion plate 10 to continuously squeeze the edge of the heat sink 611 during operation. When the edge of the heat sink 611 is squeezed, since the heat sink 611 is made of rubber, when the outer edge of the multiple groups of heat sinks 611 is squeezed, the edge of the heat sink 611 is stressed, and the arc surface 13 is pressed down with the counterweight block 11 as the fulcrum, and the inner circle of the heat sink 611 will tilt up. At this time, the inlet of hot air entering the heat sink 611 becomes larger and the hot air will fill the space between the heat sinks 611. When the vehicle is driving, wind will enter from the head part of the vehicle. When encountering the air suspension, the wind will enter between the two groups of extension plates 12 along the edge of the sealing ring 61. When the heat sink 611 is opened, the cold air quickly enters the air suspension from the edge of the sealing ring 61 to exchange with the internal air, so that the hot and cold air are quickly exchanged in the process of the heat sink 611 opening and closing continuously when the air bag 3 absorbs shock, thereby promoting the replacement of hot and cold air.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight intelligent RV suspension axle structure, comprising an upper top seat (1), a piston sleeve (2) arranged inside the upper top seat (1), an air bag (3) for sealing between the piston sleeve (2) and the upper top seat (1), a shock absorber (4) arranged inside the piston sleeve (2) and a dust cover (5) arranged below the upper top seat (1), characterized in that: The invention also comprises a heat dissipation assembly (6) for connecting the upper seat (1) with the dust cover (5), wherein the heat dissipation assembly (6) comprises a plurality of sealing rings (61) and a plurality of connecting pieces (62); the plurality of sealing rings (61) are sequentially stacked and arranged between the upper seat (1) and the dust cover (5), and the sealing rings (61) are composed of four groups of heat sinks (611), the heat sinks (611) are made of rubber material, elastic sheets (612) are fixedly connected between the heat sinks (611), the heat sinks (611) are in the shape of a quarter circular arc, and the center angle of the heat sink (611) is between 85° and 90°. When the plurality of sealing rings (61) are unfolded, the plurality of heat sinks (611) move synchronously up and down and separate, and the lowest point of the heat sink (611) is lower than the highest point of the heat sink (611) of the next group, and the connecting piece (62) connects the plurality of sealing rings (61) in series.

2. The lightweight intelligent RV suspension axle structure according to claim 1 is characterized by: An arc-shaped plate (7) is fixedly connected to the outer ring of the heat sink (611), a baffle (8) is fixedly installed on the inner ring of the heat sink (611), and a convex block (9) is fixedly installed on the heat sink (611); the convex block (9) is arranged between the arc-shaped plate (7) and the baffle (8), and the cross section of the convex block (9) is symmetrically undulating; the height of the baffle (8) is higher than that of the arc-shaped plate (7); and the cross section of the channel formed between the multiple groups of heat sinks (611) is "W"-shaped.

3. The lightweight intelligent RV suspension axle structure according to claim 2 is characterized by: The connecting member (62) comprises two groups of grooves (621) formed on the protrusion (9), the grooves (621) being arranged at the middle position of the protrusion (9), a hinge rod (622) being fixedly connected in the grooves (621), and a spring (623) being fixedly connected to the hinge rod (622), a group of the multiple groups of the springs (623) being close to the upper seat (1) having an extrusion plate (10) fixedly mounted thereon, the extrusion plate (10) being fixedly mounted on the bottom of the upper seat (1), and the multiple groups of the connecting members (62) being arranged in sequence between the multiple groups of the heat sinks (611).

4. The lightweight intelligent RV suspension axle structure according to claim 3 is characterized by: A counterweight block (11) is fixedly mounted on the arc-shaped plate (7), and the counterweight block (11) is triangular in shape.

5. The lightweight intelligent RV suspension axle structure according to claim 4 is characterized by: The cross section of the extrusion plate (10) is "L"-shaped, and the lower end of the extrusion plate (10) is in contact with the top of the counterweight (11). An extension plate (12) is fixedly mounted on the bottom of the arc plate (7), and the extension plate (12) is in an inclined state. A curved surface (13) is provided at the bottom of the extension plate (12), and the curved surface (13) corresponds to the top of the counterweight (11).

6. The lightweight intelligent RV suspension axle structure according to claim 5 is characterized by: The included angle (14) between the extension plate (12) and the arc-shaped plate (7) is greater than 120°, and when the extrusion plate (10) presses down, the top of the counterweight (11) fits into the arc surface (13).

7. A lightweight intelligent RV suspension axle structure according to claim 6, characterized in that: The baffle plate (8) is provided with slots (15), and the slots (15) are arranged in a circular array on the baffle plate (8).

8. A lightweight intelligent RV suspension axle structure according to claim 6 or 7, characterized in that: The arc-shaped plate (7) is provided with a circular hole (16), and the circular hole (16) penetrates the arc-shaped plate (7), and a plurality of groups of the circular holes (16) are arranged in a circular array on the arc-shaped plate (7).

9. The lightweight intelligent RV suspension axle structure according to claim 8 is characterized by: A plurality of groups of cavities (17) are provided on the edge of the extension plate (12), and the plurality of groups of cavities (17) are arranged between the two groups of circular holes (16).

10. The lightweight intelligent RV suspension axle structure according to claim 9, characterized in that: A connecting plate (18) is fixedly mounted on the baffle (8); the connecting plate (18) is bent, and the bending angle is greater than 120°.

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