Built-in upper limit anti-folding and anti-turning air bag
By installing a limiting mechanism inside the air suspension airbag, the problem of large volume and high failure rate of airbag limiting devices in the prior art is solved, and the airbag limiting with compact structure and low cost is achieved, which improves the use of air suspension Quality and safety.
Patent Information
- Application Number
- CN202411509561.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2024-12-13
AI Technical Summary
The limiting device of the airbag in the existing air suspension is usually installed outside the airbag, resulting in large size, increased weight, high cost and susceptible to external environment, high failure rate, and cannot meet the energy-saving and efficient use needs.
Design a built-in upper limit anti-folding and anti-turning airbag. By installing a limiting mechanism inside the airbag structure, including a limit cable, an upper limit pull ring, a limit column and a lower limit mechanism, the limit cable and a limit column are used to use the limit cable and a limit column card. The connection structure limits the length of the capsule cavity, avoids airbag folding and vehicle rolling, is compact in structure, low in cost, and reduces the failure rate.
Effectively limit the length of the airbag structure, avoid folding and vehicle rolling, reduce failure rate, reduce costs, improve the quality and safety of the air suspension, and meet the energy-saving and efficient use needs.
Smart Images
Figure CN119116611A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of air suspension, and in particular to a built-in upper limit anti-folding and anti-rollover airbag. Background Art
[0002] The axle of a truck is connected to the frame through the suspension. The suspension is a key component that connects the axle and the frame. It plays a key role in maintaining the balance of the vehicle, the load of the vehicle, and absorbing road bumps. With the progress of social civilization, the suspension has gradually been innovated into air suspension. In the air suspension, the airbag is the most core component.
[0003] In the prior art, the current airbag limiting method in the air suspension is mainly through installing a limiting device at the external position of the airbag, and limiting the airbag by the limiting device at the external position. However, this limiting device independently installed on the outside of the airbag is affected by the volume of the airbag itself, resulting in a larger overall volume of the limiting device, which not only increases the overall weight and cost of the air suspension, but also the limiting device at the external position of the airbag is affected by the external environment and is prone to malfunction, resulting in an increased failure rate, which cannot meet the current demand for energy-saving and efficient use. For this reason, a built-in upper limit anti-folding and anti-rollover airbag with a limiting device at the internal position of the airbag is proposed. Summary of the invention
[0004] The object of the present invention is to provide a built-in upper limit anti-folding and anti-rollover airbag to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solution: a built-in upper limit anti-folding and anti-rollover airbag, comprising:
[0006] An airbag structure, wherein the airbag structure has an airbag cavity inside, and a vent hole connected to the airbag cavity is provided on the top of the airbag structure, and the vent hole is used for the circulation of gas in the airbag cavity;
[0007] A built-in upper limit mechanism is fixedly installed in the bag cavity of the airbag structure, and the built-in upper limit mechanism is used to limit the length of the bag cavity.
[0008] Preferably, the built-in upper limit mechanism includes:
[0009] A limiting rope, wherein the limiting rope is in the shape of a folded ring with two ends in the same direction;
[0010] An upper limit pull ring, the upper limit pull ring is fixedly arranged at the top position of the inner side of the airbag structure, and one end of the limit rope passes through the upper part of the upper limit ring and then extends downward;
[0011] The limiting column is fixedly arranged at the bottom position of the inner side of the airbag structure, and the two ends of the limiting cable are oriented and fixedly connected with the limiting column.
[0012] Preferably, rope sleeves are provided at both ends of the limiting rope, a lower limiting hook bent downward is fixedly connected to the upper end of the limiting column, and the rope sleeve is movably sleeved on the outer wall of the lower limiting hook.
[0013] Preferably, the limiting rope and the rope sleeve are an integrally formed structure, and the limiting rope is made of corrosion-resistant and tensile-resistant material.
[0014] Preferably, a built-in lower limiting mechanism is provided at a position corresponding to the limiting column at the inner bottom of the airbag structure, and the built-in lower limiting mechanism is used for limiting the position of the limiting cable on the limiting column.
[0015] Preferably, the built-in lower limit mechanism includes a limit block, a limit hook groove matching the shape of the lower limit hook is formed at the bottom end of the limit block, a limit ring groove is formed at the top end of the limit block, the limit ring groove is used to make way for the upper limit pull ring, and the limit hook groove is connected to the limit ring groove.
[0016] Preferably, the airbag structure includes a bag skin, an upper cover plate, a base and a piston;
[0017] The upper cover plate is located above the base, the bladder skin is wrapped between the upper cover plate and the base, and the inner space between the upper cover plate, the bladder skin and the base forms a bladder cavity.
[0018] Preferably, the vent hole is opened at the side position of the top end of the upper cover plate, the upper limit pull ring is located at the bottom end of the upper cover plate, two upper bolts are symmetrically arranged on the top end of the upper cover plate, and the upper limit pull ring is fixedly connected to the upper cover plate through the upper bolts.
[0019] Preferably, the piston is connected to the bottom end of the base, an assembly hole is provided in the middle of the piston, an assembly bolt is provided below the piston, a threaded hole matching the assembly bolt is provided at the bottom end of the limiting column, and the outer wall of the assembly bolt passes through the assembly hole and is threadedly connected to the threaded hole.
[0020] Preferably, the piston is provided with mounting holes, and the mounting holes are multiple and arranged at intervals in an array.
[0021] Compared with the prior art, the technical effects of the present invention are:
[0022] The present invention installs a matching built-in upper limit mechanism inside the airbag structure, which not only limits the length of the airbag cavity of the airbag structure, avoiding the risks of excessive cavity length, folding of the airbag structure, and vehicle rollover, but also is installed in the airbag cavity of the airbag structure with a simple structure, small size, and low cost, which reduces the failure rate and cost at the same time, thereby better meeting actual use needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a front view structural schematic diagram of the present invention.
[0024] Figure 2 It is a schematic diagram of the top view structure of the present invention.
[0025] Figure 3 It is a front view structural schematic diagram of the limiting device of the present invention.
[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting cable of the present invention.
[0027] Figure 5 It is a schematic diagram of the top three-dimensional structure of the limit block of the present invention.
[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the limit block of the present invention when viewed from above.
[0029] Figure 7 It is a bottom-up three-dimensional structural schematic diagram of the upper cover plate of the present invention.
[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the base of the present invention from a top view.
[0031] Fig. 9 It is a schematic diagram of the top view of the piston of the present invention.
[0032] Fig.10 It is a schematic diagram of the separate structure of the limiting column and the assembly bolt of the present invention.
[0033] In the figure: 1. upper cover plate; 2. upper bolt; 3. vent hole; 4. piston; 5. mounting hole; 6. bladder skin; 7. assembly hole; 8. upper limit pull ring; 9. limit rope; 10. limit block; 11. limit ring groove; 12. limit hook groove; 13. base; 14. limit column; 15. lower limit hook; 16. threaded hole; 17. rope sleeve; 18. assembly bolt. DETAILED DESCRIPTION
[0034] 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.
[0035] The present invention provides Figure 1-Figure 10 A built-in upper limit anti-folding and anti-rollover airbag is shown.
[0036] Embodiment 1, as Figure 1-Figure 3As shown, it includes an airbag structure and a built-in upper limit mechanism, the airbag structure has a bag cavity inside, and a vent hole 3 connected to the bag cavity is provided on the top of the airbag structure; wherein the airbag structure includes a bag skin 6, an upper cover plate 1, a base 13 and a piston 4, the piston 4 is connected to the bottom end of the base 13, the upper cover plate 1 is located above the base 13, the bag skin 6 is wrapped between the upper cover plate 1 and the base 13, the inner space between the upper cover plate 1, the bag skin 6 and the base 13 forms a bag cavity, the vent hole 3 is opened at the top side of the upper cover plate 1, the vent hole 3 is used for the circulation of gas in the bag cavity, the inner bottom of the bag skin 6 is wrapped around the periphery of the base 13, the inner top of the bag skin 6 is fixed to the outer wall of the upper cover plate 1, the space between the three forms a bag cavity, and the built-in upper limit mechanism is installed in the bag cavity, which can avoid the problem of easy damage and increased failure rate when exposed to the external environment, and the vent hole 3 satisfies the gas circulation caused by the change of the volume of the bag cavity, so as to ensure the normal operation of the airbag structure;
[0037] Specifically, Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig.10 As shown, the built-in upper limit mechanism is fixedly installed in the bag cavity of the airbag structure. The built-in upper limit mechanism is used to limit the length of the bag cavity. By limiting the length of the bag cavity of the airbag structure through the built-in upper limit mechanism, it can effectively avoid the risk of the bag skin 6 being separated from the base 13, the bag skin 6 being infinitely elongated to cause the bag cavity to be too large, the bag skin 6 being folded, and the vehicle being tilted, thereby effectively improving the use quality of the air suspension and improving the safety of vehicle driving; wherein, the built-in upper limit mechanism includes: a limit rope 9, an upper limit pull ring 8 and a limit column 14, the limit rope 9 is a folded ring with both ends in the same direction (such as Figure 3 and Figure 4As shown in the figure, the upper limit pull ring 8 is fixedly arranged at the top position of the inner side of the airbag structure, the upper limit pull ring 8 is located at the bottom end of the upper cover plate 1, and two upper bolts 2 are symmetrically arranged at the top of the upper cover plate 1. The upper limit pull ring 8 is fixedly connected to the upper cover plate 1 through the upper bolts 2, and the upper limit pull ring 8 and the upper cover plate 1 are connected and fixed by the upper bolts 2, so that the upper limit pull ring 8 and the upper cover plate 1 are detachably fixed, and the upper limit pull ring 8 is firmly installed at the bottom end of the upper cover plate 1, and the upper limit pull ring 8 is detachably maintained, thereby increasing the convenience of subsequent maintenance work; one end of the limiting rope 9 passes through the upper limit pull ring 8 and extends downward, and the middle part of the upper limit pull ring 8 has a downwardly protruding bending shape, so that it can be connected with the upper cover plate 1. A through hole is formed for the limiting rope 9 to pass through, so that one end of the limiting rope 9 can pass through between the upper limit pull ring 8 and the upper cover plate 1, so that the upper limit pull ring 8 can limit the limiting rope 9 and facilitate the installation of the limiting rope 9 on the upper limit pull ring 8; the limiting column 14 is fixedly arranged at the bottom position of the inner side of the airbag structure, and the two ends of the limiting rope 9 are facing and fixed with the limiting column 14, and the bottom of the limiting rope 9 is locked and fixed with the limiting column 14, so that the bottom of the limiting rope 9 is limited, and the upper limit pull ring 8 is used to limit and fix the top of the limiting rope 9, so that the built-in upper limit mechanism can be combined to limit the bag cavity of the airbag structure, prevent the bag skin 6 from being separated from the base 13, prevent the bag skin 6 from being infinitely stretched to cause the bag cavity to increase, and prevent the bag skin 6 from folding.
[0038] Furthermore, rope sleeves 17 are provided at both ends of the limiting rope 9, and the limiting rope 9 and the rope sleeve 17 are an integrally formed structure, and the limiting rope 9 is made of corrosion-resistant and tensile-resistant material, specifically, corrosion-resistant plastic or metal can be used. The upper end of the limiting column 14 is fixedly connected with a lower limiting hook 15 bent downward, and the rope sleeve 17 is movably sleeved on the outer wall of the lower limiting hook 15. The limiting rope 9 is made of corrosion-resistant and tensile-resistant material, which not only makes the overall strength of the limiting rope 9 higher, but also allows the position of the rope sleeve 17 at the end of the limiting rope 9 to be slightly bent and deformed, so that the rope sleeves 17 located at the two ends of the limiting rope 9 are conveniently sleeved on the two lower limiting hooks 15 at the top of the limiting column 14, thereby improving the convenience of assembly. In some embodiments, the rope sleeve 17 can be formed by bending the limiting rope 9 to form a hollow end, and the position between one end and the outer wall can be reinforced by welding. In other embodiments, the rope sleeve 17 can also be separately forged or welded to the end of the limiting rope 9.
[0039] Embodiment 2, as Figure 3 , Figure 5 , Figure 6 and Fig. 9 As shown, on the basis of Example 1, a built-in lower limiting mechanism is provided at the inner bottom of the airbag structure corresponding to the limiting column 14, and the built-in lower limiting mechanism is used to limit the position of the limiting cable 9 on the limiting column 14. The built-in lower limiting mechanism can limit the position of the limiting column 14 and the limiting cable 9 of the cable sleeve 17;
[0040] It should be noted that the built-in lower limit mechanism includes a limit block 10, a limit hook groove 12 that matches the shape of the lower limit hook 15 is provided at the bottom end of the limit block 10, and a limit ring groove 11 is provided at the top end of the limit block 10. The limit ring groove 11 is used to make way for the upper limit pull ring 8, and the limit hook groove 12 is connected to the limit ring groove 11. The limit ring groove 11 and the limit hook groove 12 are respectively provided at the top and bottom ends of the limit block 10, which can meet the requirement of making way for the upper limit pull ring 8, and at the same time, the rope sleeve 17 of the limit rope 9 can pass through the limit block 10 and be connected to the lower limit hook 15, and at the same time, it can be partially matched with the lower limit hook 15 through the limit hook groove 12, so that the limit block 10 is stably installed on the outer wall of the limit column 14;
[0041] Furthermore, an assembly hole 7 is provided in the middle of the piston 4, an assembly bolt 18 is provided below the piston 4, a threaded hole 16 matching the assembly bolt 18 is provided at the bottom end of the limiting column 14, and the outer wall of the assembly bolt 18 passes through the assembly hole 7 and is threadedly connected with the threaded hole 16. After the assembly bolt 18 passes through the assembly hole 7 from the bottom end of the piston 4, it is threadedly connected with the threaded hole 16 on the limiting column 14, so that the installation and fixation of the limiting column 14 can be completed, and disassembly and assembly are convenient; in addition, the piston 4 is provided with a mounting hole 5, and the mounting holes 5 are multiple and arranged in an array shape. The setting of the mounting holes 5 can enable the piston 4 to be connected and assembled with the guide arm on the external air suspension, so that the installation of the airbag structure on the air suspension is more convenient and efficient.
[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A built-in upper limit anti-folding and anti-rollover airbag, It is characterized in that include: An airbag structure, wherein the airbag structure has an airbag cavity inside, and a vent hole (3) connected to the airbag cavity is provided at the top of the airbag structure, and the vent hole (3) is used for the circulation of gas in the airbag cavity; A built-in upper limit mechanism is fixedly installed in the bag cavity of the airbag structure, and the built-in upper limit mechanism is used to limit the length of the bag cavity.
2. A built-in upper limit anti-folding and anti-rollover airbag according to claim 1, It is characterized in that The built-in upper limit mechanism comprises: A limiting rope (9), wherein the limiting rope (9) is in the shape of a folded ring with two ends in the same direction; An upper limit pull ring (8), wherein the upper limit pull ring (8) is fixedly arranged at the top position of the inner side of the airbag structure, and one end of the limit rope (9) passes through the upper part of the upper limit ring (8) and then extends downward; A limiting column (14) is fixedly arranged at the bottom position of the inner side of the airbag structure, and two ends of the limiting cable (9) face toward and are fixedly connected to the limiting column (14).
3. A built-in upper limit anti-folding and anti-rollover airbag according to claim 2, It is characterized in that Both ends of the limiting rope (9) are provided with rope sleeves (17); the upper end of the limiting column (14) is fixedly connected with a downwardly bent lower limiting hook (15); and the rope sleeve (17) is movably sleeved on the outer wall of the lower limiting hook (15).
4. A built-in upper limit anti-folding and anti-rollover airbag according to claim 3, It is characterized in that The limiting rope (9) and the rope sleeve (17) are an integrally formed structure, and the limiting rope (9) is made of a corrosion-resistant and tensile-resistant material.
5. The built-in upper limit anti-folding and anti-rollover airbag according to claim 4, It is characterized in that A built-in lower limiting mechanism is provided at a position corresponding to the limiting column (14) on the inner bottom of the airbag structure, and the built-in lower limiting mechanism is used for limiting the position of the limiting cable (9) on the limiting column (14).
6. The built-in upper limit anti-folding and anti-rollover airbag according to claim 5, It is characterized in that The built-in lower limit mechanism comprises a limit block (10), the bottom end of the limit block (10) is provided with a limit hook groove (12) which matches the shape of the lower limit hook (15), the top end of the limit block (10) is provided with a limit ring groove (11), the limit ring groove (11) is used to make way for the upper limit pull ring (8), and the limit hook groove (12) is connected to the limit ring groove (11).
7. The internal upper limit anti-folding and anti-rollover airbag according to claim 6, It is characterized in that The airbag structure comprises a bag skin (6), an upper cover plate (1), a base (13) and a piston (4); The upper cover plate (1) is located above the base (13), the bladder skin (6) is wrapped between the upper cover plate (1) and the base (13), and the inner space between the upper cover plate (1), the bladder skin (6) and the base (13) forms a bladder cavity.
8. The internal upper limit anti-folding and anti-rollover airbag according to claim 7, It is characterized in that The vent hole (3) is provided at the side position of the top end of the upper cover plate (1), the upper limit pull ring (8) is located at the bottom end of the upper cover plate (1), two upper bolts (2) are symmetrically arranged at the top end of the upper cover plate (1), and the upper limit pull ring (8) is fixedly connected to the upper cover plate (1) via the upper bolts (2).
9. The built-in upper limit anti-folding and anti-rollover airbag according to claim 8, It is characterized in that The piston (4) is connected to the bottom end of the base (13); a mounting hole (7) is provided in the middle of the piston (4); a mounting bolt (18) is provided below the piston (4); a threaded hole (16) matching the mounting bolt (18) is provided at the bottom end of the limiting column (14); and the outer wall of the mounting bolt (18) passes through the mounting hole (7) and is threadedly connected to the threaded hole (16).
10. The built-in upper limit anti-folding and anti-rollover airbag according to claim 9, It is characterized in that The piston (4) is provided with a mounting hole (5), and the mounting holes (5) are multiple and arranged at intervals in an array.