Air spring for low-frequency motor home
By designing a low-frequency RV air spring including an outer jacket and an inner jacket, forming a protective structure and using lubricating oil and thermal conduction layers to improve sliding stability and heat dissipation efficiency, the problem of existing air springs being vulnerable to damage and extending service life.
Patent Information
- Application Number
- CN202422315810.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-23
AI Technical Summary
When used in the existing low-frequency RV air springs, the telescopic rubber on the air spring is exposed and is easily damaged by small solid particles such as external gravel, resulting in friction and wear, which in turn affects the service life.
A low-frequency RV air spring including an air spring body, a jacket and an inner sleeve is designed. Through the design of the jacket and an inner sleeve, a protective structure is formed. The inner sleeve slides inside the jacket, and the sliding stability is improved by lubricating oil, and heat dissipation is accelerated through the thermal conduction layer and through holes.
It effectively protects the air spring body, reduces friction and wear, extends service life, and improves the heat dissipation efficiency of the air spring.
Smart Images
Figure CN223049300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of RV accessories, and particularly relates to a low-frequency air spring for RVs. Background Technique
[0002] An RV is a fashionable vehicle type introduced from abroad. The household facilities on it include bedding, stoves, refrigerators, cabinets and other furniture and electrical appliances. It can be divided into a driving area, a living area, a bedroom area, a sanitary area, a kitchen area, etc.; an air spring, also known as an air suspension spring, is a spring that uses compressed air as an elastic medium. It mainly consists of a telescopic sealed container filled with compressed air, and realizes the elastic function of the spring through the compression and release of air.
[0003] However, when the existing low-frequency air spring for RVs is in use, the telescopic rubber part on the air spring is exposed to the outside. However, when the low-frequency RV is running, when solid small particles such as gravel and sundries outside fly onto the air spring, they will adhere to the position of the telescopic rubber of the air spring. When the air spring contracts, the solid small particles adhering to the position of the telescopic rubber of the air spring will be squeezed, and the telescopic rubber on the air spring will rub. Long-term friction will cause the telescopic rubber to wear, and the gas in the air spring will leak, which will have a certain impact on the service life of the air spring. Therefore, a low-frequency air spring for RVs is provided. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide a low-frequency air spring for RVs. The utility model solves the problem that it is inconvenient to protect the air spring body when the existing low-frequency air spring for RVs is in use by setting an outer sleeve, an inner sleeve, a circular groove, a slider and a chute.
[0005] The technical solution adopted by the utility model to solve its technical problems is a low-frequency air spring for RVs, which includes an air spring body, an outer sleeve and an inner sleeve. A circular groove for the movement of the inner sleeve is provided on the surface of the outer sleeve. A limit sleeve connected to the air spring body is welded on one side of the inner sleeve. A chute is provided inside the inner sleeve, and a slider connected to the inner sleeve is slidably connected to the inner side of the chute. A cavity for storing lubricating oil is provided inside the outer sleeve, and a fixing hole for discharging the lubricating oil is provided on the inner side of the chute.
[0006] By adopting the above technical solution, when the air spring body is installed on a low-frequency RV, first fix the outer sleeve outside the air spring body, then pass the inner sleeve through the circular groove on the surface of the outer sleeve, and then fix the limit sleeve at one end of the inner sleeve outside the air spring body. When the air spring body works, the inner sleeve outside the air spring body moves inside the outer sleeve, and the slider outside the inner sleeve slides in the chute opened on the outer sleeve, so as to make the sliding stability of the inner sleeve inside the outer sleeve, and make the inner sleeve and the outer sleeve form a protective structure outside the air spring body, thus facilitating the protection of the air spring body;
[0007] When the inner sleeve outside the air spring body moves longitudinally inside the outer sleeve, the slider on the inner sleeve slides in the chute on the outer sleeve, and the slider and the fixing hole in the chute will be separated. Subsequently, the lubricating oil in the inner cavity of the outer sleeve flows into the chute through the fixing hole, thereby improving the sliding stability of the inner sleeve inside the outer sleeve.
[0008] Specifically, a heat-conducting layer for transferring the heat of the air spring body outward is arranged on the inner side of the inner sleeve, and through holes for discharging the heat inside the inner sleeve to the outside are arranged on the surface of the inner sleeve.
[0009] By adopting the above technical solution, when the air spring body works, the inner sleeve outside the air spring body slides inside the outer sleeve. When the inner sleeve moves longitudinally, the external air contacts the surface of the air spring body through the through holes on the surface of the inner sleeve, accelerating the air flow speed on the surface of the air spring body. At the same time, the heat-conducting layer inside the inner sleeve transfers the heat on the air spring body outward, thus facilitating the heat dissipation treatment of the air spring body.
[0010] Specifically, a fixed cover for adding lubricating oil into the cavity is threadedly connected to the outside of the outer sleeve.
[0011] By adopting the above technical solution, when the lubricating oil in the cavity runs out, turn the fixed cover on the outer sleeve, then the fixed cover is separated from the outer sleeve, and then pour the lubricating oil into the cavity inside the fixed cover, thus facilitating the addition of lubricating oil into the cavity of the fixed cover.
[0012] Specifically, rubber rings for improving the sealing performance of the air spring body are adhesively bonded to the inner sides of the outer sleeve and the limit sleeve.
[0013] By adopting the above technical solution, when the outer sleeve and the limit sleeve are fixed on the air spring body, the rubber rings inside the outer sleeve and the limit sleeve are in close contact with the air spring body, thereby improving the sealing performance between the air spring bodies.
[0014] Specifically, a mesh block for protecting the air spring body is snap-fitted inside the through hole.
[0015] By adopting the above technical solution, when the heat on the air spring body is discharged through the through holes opened on the inner sleeve, the mesh blocks in the through holes prevent foreign objects from entering the inside of the inner sleeve, thus facilitating the protection of the air spring body.
[0016] Advantages of the present utility model:
[0017] (1) For the low-frequency air spring for a motorhome of the present utility model, when the air spring body is installed on a low-frequency motorhome, first fix the outer sleeve outside the air spring body, then pass the inner sleeve through the circular groove on the surface of the outer sleeve, and then fix the limit sleeve at one end of the inner sleeve outside the air spring body. When the air spring body works, the inner sleeve outside the air spring body moves inside the outer sleeve, and the slider outside the inner sleeve slides in the chute opened on the outer sleeve, so that the sliding stability of the inner sleeve inside the outer sleeve is improved, and a protective structure is formed outside the air spring body by the inner sleeve and the outer sleeve, thus facilitating the protection of the air spring body;
[0018] (2) For the low-frequency air spring for a motorhome of the present utility model, when the inner sleeve outside the air spring body moves longitudinally inside the outer sleeve, the slider on the inner sleeve slides in the chute on the outer sleeve, and the slider will be separated from the fixing hole in the chute. Then, the lubricating oil in the cavity inside the outer sleeve flows into the chute through the fixing hole, thereby improving the sliding stability of the inner sleeve inside the outer sleeve.
[0019] (3) For the low-frequency air spring for a motorhome of the present utility model, when the air spring body works, the inner sleeve outside the air spring body slides inside the outer sleeve. When the inner sleeve moves longitudinally, the outside air contacts the surface of the air spring body through the through holes on the surface of the inner sleeve, accelerating the air flow speed on the surface of the air spring body. At the same time, the heat-conducting layer inside the inner sleeve transfers the heat on the air spring body outwards, thus facilitating the heat dissipation treatment of the air spring body. Description of the drawings
[0020] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0021] Figure 1 is the overall structural schematic diagram of a low-frequency air spring for a motorhome of the present utility model;
[0022] Figure 2 is the structural schematic diagram of the outer sleeve of a low-frequency air spring for a motorhome of the present utility model;
[0023] Figure 3 is the structural schematic diagram of the inner sleeve of a low-frequency air spring for a motorhome of the present utility model;
[0024] Figure 4 is the top view structural schematic diagram of the inside of the outer sleeve of a low-frequency air spring for a motorhome of the present utility model;
[0025] In the figure: 1. Air spring main body; 2. Outer sleeve; 3. Through hole; 4. Mesh block; 5. Inner sleeve; 6. Limit sleeve; 7. Circular groove; 8. Slide groove; 9. Rubber ring; 10. Heat conduction layer; 11. Slide block; 12. Fixing hole; 13. Fixing cover; 14. Cavity. Detailed implementation manners
[0026] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation manners.
[0027] For protecting the air spring main body 1, as an embodiment of the present utility model, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a low-frequency air spring for a recreational vehicle of the present utility model includes an air spring main body 1, an outer sleeve 2 and an inner sleeve 5. A circular groove 7 for moving the inner sleeve 5 is provided on the surface of the outer sleeve 2. A limit sleeve 6 connected to the air spring main body 1 is welded to one side of the inner sleeve 5. A slide groove 8 is provided inside the inner sleeve 5, and a slide block 11 connected to the inner sleeve 5 is slidably connected to the inner side of the slide groove 8. A cavity 14 for storing lubricating oil is provided inside the outer sleeve 2. A fixing hole 12 for discharging the lubricating oil is provided on the inner side of the slide groove 8.
[0028] During use, when the air spring main body 1 is installed on a low-frequency recreational vehicle, first fix the outer sleeve 2 outside the air spring main body 1, then pass the inner sleeve 5 through the circular groove 7 on the surface of the outer sleeve 2, and then fix the limit sleeve 6 at one end of the inner sleeve 5 outside the air spring main body 1. When the air spring main body 1 works, the inner sleeve 5 outside the air spring main body 1 moves inside the outer sleeve 2, and the slide block 11 outside the inner sleeve 5 slides in the slide groove 8 opened on the outer sleeve 2, so as to improve the sliding stability of the inner sleeve 5 inside the outer sleeve 2, and form a protective structure outside the air spring main body 1 between the inner sleeve 5 and the outer sleeve 2, thereby facilitating the protection of the air spring main body 1;
[0029] When the inner sleeve 5 outside the air spring main body 1 moves longitudinally inside the outer sleeve 2, the slide block 11 on the inner sleeve 5 slides in the slide groove 8 on the outer sleeve 2, and the slide block 11 and the fixing hole 12 in the slide groove 8 will be separated. Subsequently, the lubricating oil in the cavity 14 inside the outer sleeve 2 flows into the slide groove 8 through the fixing hole 12, thereby improving the sliding stability of the inner sleeve 5 inside the outer sleeve 2.
[0030] For heat dissipation treatment of the air spring main body 1, exemplarily, as Figure 3 shown, the present utility model further includes that a heat conduction layer 10 for transferring the heat of the air spring main body 1 outward is provided on the inner side of the inner sleeve 5, and through holes 3 for discharging the heat inside the inner sleeve 5 to the outside are provided on the surface of the inner sleeve 5.
[0031] During use, when the air spring body 1 is working, the inner sleeve 5 on the outside of the air spring body 1 slides inside the outer sleeve 2. When the inner sleeve 5 moves longitudinally, the outside air contacts the surface of the air spring body 1 through the through holes 3 on the surface of the inner sleeve 5, accelerating the air flow speed on the surface of the air spring body 1. At the same time, the heat conducting layer 10 inside the inner sleeve 5 transfers the heat on the air spring body 1 outwards, thus facilitating the heat dissipation treatment of the air spring body 1.
[0032] In order to add lubricating oil into the cavity 14 in the fixed cover 13, exemplarily, as Figure 2 、 Figure 4 shown, the present utility model further includes that a fixed cover 13 for adding lubricating oil into the cavity 14 is threadedly connected to the outside of the outer sleeve 2.
[0033] During use, when the lubricating oil in the cavity 14 runs out, rotate the fixed cover 13 on the outer sleeve 2. Subsequently, the fixed cover 13 is separated from the outer sleeve 2, and then the lubricating oil is poured into the cavity 14 inside the fixed cover 13, thus facilitating the addition of lubricating oil into the cavity 14 in the fixed cover 13.
[0034] In order to ensure the sealing performance between the air spring bodies 1, exemplarily, as Figure 2 shown, the present utility model further includes that rubber rings 9 for improving the sealing performance of the air spring body 1 are adhesively bonded to the inner sides of the outer sleeve 2 and the limit sleeve 6.
[0035] During use, when the outer sleeve 2 and the limit sleeve 6 are fixed on the air spring body 1, the rubber rings 9 inside the outer sleeve 2 and the limit sleeve 6 are in close contact with the air spring body 1, thereby improving the sealing performance between the air spring bodies 1.
[0036] In order to protect the air spring body 1, exemplarily, as Figure 1 shown, the present utility model further includes that a net block 4 for protecting the air spring body 1 is clamped inside the through hole 3.
[0037] During use, when the heat on the air spring body 1 is discharged through the through holes 3 opened on the inner sleeve 5, the net block 4 inside the through hole 3 prevents foreign objects from entering the inside of the inner sleeve 5, thus facilitating the protection of the air spring body 1.
[0038] When the utility model is in use, when the air spring body 1 is installed on a low-frequency RV, first fix the outer sleeve 2 outside the air spring body 1, then pass the inner sleeve 5 through the circular groove 7 on the surface of the outer sleeve 2, and then fix the limit sleeve 6 at one end of the inner sleeve 5 outside the air spring body 1. When the air spring body 1 works, the inner sleeve 5 outside the air spring body 1 moves inside the outer sleeve 2, and the slider 11 outside the inner sleeve 5 slides in the chute 8 opened on the outer sleeve 2, so that the sliding stability of the inner sleeve 5 inside the outer sleeve 2 is improved, and a protective structure is formed between the inner sleeve 5 and the outer sleeve 2 outside the air spring body 1, thus facilitating the protection of the air spring body 1;
[0039] When the inner sleeve 5 outside the air spring body 1 moves longitudinally inside the outer sleeve 2, the slider 11 on the inner sleeve 5 slides in the chute 8 on the outer sleeve 2, and the slider 11 will be separated from the fixing hole 12 in the chute 8. Subsequently, the lubricating oil in the inner cavity 14 of the outer sleeve 2 flows through the fixing hole 12 into the chute 8, thereby improving the sliding stability of the inner sleeve 5 inside the outer sleeve 2;
[0040] When the air spring body 1 works, the inner sleeve 5 outside the air spring body 1 slides inside the outer sleeve 2. When the inner sleeve 5 moves longitudinally, the external air contacts the surface of the air spring body 1 through the through hole 3 on the surface of the inner sleeve 5, accelerating the air flow speed on the surface of the air spring body 1. At the same time, the heat conducting layer 10 inside the inner sleeve 5 transfers the heat on the air spring body 1 outwards, thus facilitating the heat dissipation treatment of the air spring body 1;
[0041] When the lubricating oil in the cavity 14 runs out, turn the fixing cover 13 on the outer sleeve 2. Subsequently, the fixing cover 13 is separated from the outer sleeve 2, and then the lubricating oil is poured into the cavity 14 inside the fixing cover 13, thus facilitating the addition of lubricating oil to the cavity 14 in the fixing cover 13;
[0042] When the outer sleeve 2 and the limit sleeve 6 are fixed on the air spring body 1, the rubber rings 9 inside the outer sleeve 2 and the limit sleeve 6 are in close contact with the air spring body 1, thereby improving the sealing performance between the air spring bodies 1;
[0043] When the heat on the air spring body 1 is discharged through the through hole 3 opened on the inner sleeve 5, the mesh block 4 in the through hole 3 prevents foreign objects from entering the inside of the inner sleeve 5, thus facilitating the protection of the air spring body 1.
[0044] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.
Claims
1. A low-frequency air spring for a motorhome, characterized in that: The invention comprises an air spring body (1), an outer sleeve (2) and an inner sleeve (5); a circular groove (7) for moving the inner sleeve (5) is provided on the surface of the outer sleeve (2); a limiting sleeve (6) connected to the air spring body (1) is welded on one side of the inner sleeve (5); a sliding groove (8) is provided inside the inner sleeve (5); a sliding block (11) connected to the inner sleeve (5) is slidably connected inside the sliding groove (8); a cavity (14) for storing lubricating oil is provided inside the outer sleeve (2); and a fixing hole (12) for discharging the lubricating oil is provided inside the sliding groove (8).
2. A low-frequency RV air spring according to claim 1, characterized in that: A heat-conducting layer (10) is provided on the inner side of the inner sleeve (5) for transferring heat from the air spring body (1) to the outside, and a through hole (3) is provided on the surface of the inner sleeve (5) for discharging heat from the inner sleeve (5) to the outside.
3. A low-frequency RV air spring according to claim 1, characterized in that: The outer surface of the outer sleeve (2) is threadedly connected to a fixed cover (13) for adding lubricating oil into the cavity (14).
4. A low-frequency RV air spring according to claim 1, characterized in that: The inner sides of the outer sleeve (2) and the limiting sleeve (6) are both bonded with a rubber ring (9) for improving the sealing performance of the air spring body (1).
5. The low-frequency air spring for a motorhome according to claim 2, characterized in that: A mesh block (4) for protecting the air spring body (1) is clamped inside the through hole (3).