Air cylinder and air suspension
By designing an oblong gas storage cylinder made of plastic, the problems of large weight and weak welding of traditional gas storage cylinders are solved, achieving the effect of lightweight and cost reduction.
Patent Information
- Application Number
- CN202422409220.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The traditional gas storage cylinder is made of stainless steel and aluminum alloy, which leads to large weight, increases the burden on the vehicle, and is weak in welding and has high manufacturing costs.
The cylinder and end cap are made of plastic material, designed as an oblong structure, the fiber layer only wraps around the cylinder, and the welding is no longer a weak point, reducing the use of the fiber layer to reduce costs.
It achieves lightweight and reduces manufacturing costs, while meeting the blasting requirements of the air storage cylinder in the air suspension, improving the strength and durability of the air storage cylinder.
Smart Images
Figure CN223085785U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicles, and particularly to an air reservoir and an air suspension. Background Art
[0002] Traditional air reservoirs generally adopt stainless steel and aluminum alloy materials. Although they perform well in terms of strength and durability, their weight is relatively large, increasing the burden on the vehicle. In addition, residues will be left during the manufacturing process of these materials, resulting in insufficient cleanliness levels and affecting the airtightness and long-term reliability of the air suspension system.
[0003] Based on this, air reservoirs made of plastic materials began to appear. However, the air reservoir usually adopts an oval structure, and its weak point is the welded joint. In order to improve its strength and durability, the entire barrel body needs to be wound with fibers obliquely, which increases the manufacturing cost of the air reservoir. Summary of the Utility Model
[0004] In view of this, the present application provides an air reservoir to solve the problem that the entire barrel body of the air reservoir needs to be wound with fibers obliquely, which increases the manufacturing cost of the air reservoir.
[0005] According to an aspect of the present application, there is provided an air reservoir, which includes a fiber layer, a barrel body, and two end caps. The axis of the barrel body extends along a predetermined direction, the dimension of the barrel body in the predetermined direction is greater than the dimension of the end cap in the predetermined direction, the barrel body includes two openings opposite to each other in the predetermined direction, and the two end caps are respectively welded to the two ends of the barrel body in the predetermined direction to close the two openings, and the fiber layer winds around the barrel body.
[0006] Preferably, the barrel body includes a barrel main body and two first welding members, both of the two first welding members are connected to the inner side wall of the barrel main body, and the two first welding members are respectively located at the two ends of the barrel body in the predetermined direction;
[0007] The end cap includes a cap body and a second welding member, and the second welding member is fixed to the inner side wall of the cap body;
[0008] The two ends of the barrel main body are respectively attached to the two cap bodies, and the two first welding members are respectively welded to the two second welding members included in the two end caps.
[0009] Preferably, the first welding member includes a plurality of first welding portions, and the plurality of first welding portions are arranged at intervals along the inner side wall of the barrel main body;
[0010] The end cap includes a plurality of second welding portions, the plurality of second welding portions are arranged at intervals along the inner side wall of the cap body, and the plurality of first welding portions are respectively welded to the plurality of second welding portions.
[0011] Preferably, a first extension is provided on one side of any of the first welding parts facing away from the cylinder body, and second extensions are provided at both ends of the cylinder body in the predetermined direction, and the two second extensions are both fixed on the outer side wall of the cylinder body;
[0012] A third extension is provided on one side of any of the second welding parts facing away from the cover body, and a fourth extension is provided on the outer side wall of the cover body;
[0013] The first extensions on the first welding parts and the third extensions on the second welding parts welded to the first welding parts are arranged at intervals, and the two second extensions are respectively arranged at intervals with the two fourth extensions included in the two end covers.
[0014] Preferably, a first baffle is correspondingly provided for each of the third extensions, a part of the first baffle protrudes towards the first extension relative to the third extension, and the inner side wall of the first extension is attached to the first baffle;
[0015] A second baffle is provided on the outer side wall of the fourth extension, a part of the second baffle protrudes towards the second extension relative to the fourth extension, and the outer side wall of the second extension is attached to the second baffle.
[0016] Preferably, the first welding part includes a first groove, and the first groove penetrates through the first welding part along the predetermined direction;
[0017] The second welding part includes a second groove, and the second groove penetrates through the second welding part along the predetermined direction.
[0018] Preferably, taking the plane perpendicular to the predetermined direction as the projection plane, the orthographic projections of the multiple first welding parts included in one first welding piece on the projection plane and the orthographic projections of the multiple first welding parts included in the other first welding piece on the projection plane are alternately arranged.
[0019] Preferably, the cylinder body further includes two first positioning pins, and the two first positioning pins are both fixed on the outer side wall of the cylinder body, and the two first positioning pins are respectively located at both ends of the cylinder body in the predetermined direction;
[0020] The end cover includes a second positioning pin, and the second positioning pin is fixed on the outer side wall of the cover body, and the two second positioning pins included in the two end covers respectively correspond to the two first positioning pins.
[0021] Preferably, the end cover and the cylinder body are made of plastic material.
[0022] According to another aspect of the present application, an air suspension is provided, and the air suspension includes the above-mentioned air storage cylinder.
[0023] In the air storage cylinder of the present application, the size of the cylinder body in a predetermined direction is larger than the size of the end caps in the predetermined direction. The two end caps are respectively welded to both ends of the cylinder body, and the entire air storage cylinder is oblong. The welded surface after welding the cylinder body and the end caps can meet the bursting requirements of the air storage cylinder when it is applied in the air suspension, and the welded part is no longer the weak point of the air storage cylinder. Since the air storage cylinder is oblong, the middle position of the cylinder body is the weak point of the air storage cylinder, which enables the fiber layer to only wind around the cylinder body to effectively improve the strength and durability of the air storage cylinder. In this way, the fiber layer to be used is reduced, and the manufacturing cost of the air storage cylinder is reduced. Brief Description of the Drawings
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0025] Figure 1 A schematic plan view of the air storage cylinder showing an embodiment of the present utility model;
[0026] Figure 2 A sectional view of the air storage cylinder showing an embodiment of the present utility model;
[0027] Figure 3 Showing Figure 2 An enlarged view of part A in
[0028] Figure 4 A schematic perspective view of the cylinder body from one perspective;
[0029] Figure 5 A schematic perspective view of the cylinder body from another perspective;
[0030] Figure 6 A schematic perspective view of the end cap.
[0031] Icon: 1 - Cylinder body; 11 - Cylinder main body; 12 - First welding part; 121 - First welding portion; 122 - First groove; 13 - First extension piece; 14 - Second extension piece; 15 - First positioning pin; 2 - End cover; 21 - Cover body; 22 - Second welding part; 221 - Second welding portion; 222 - Second groove; 23 - Third extension piece; 24 - Fourth extension piece; 25 - First baffle; 26 - Second baffle; 27 - Second positioning pin; 28 - Reinforcing rib; 3 - Fiber layer; 4 - Exhaust part; 41 - Exhaust hole; 5 - Quick connector; 6 - Air nozzle; 71 - First overflow groove; 72 - Second overflow groove; S1 - First welding surface; S2 - Second welding surface; S3 - First fitting surface; S4 - Second fitting surface; L - Predetermined direction. Detailed implementation manners
[0032] The following detailed implementation manners are provided to help readers obtain a comprehensive understanding of the methods, devices, and / or systems described herein. However, after understanding the disclosure of this application, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be obvious. For example, the order of operations described herein is merely an example and is not limited to the order set forth herein. Rather, changes that will be obvious after understanding the disclosure of this application can be made, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.
[0033] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, devices, and / or systems described herein that will be obvious after understanding the disclosure of this application.
[0034] Throughout the specification, when an element (such as, a layer, a region, or a substrate) is described as "on" another element, "connected to" another element, "bonded to" another element, "above" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "above" another element, or "covering" another element, or there may be one or more other elements between them. In contrast, when an element is described as "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly above" another element, or "directly covering" another element, there may be no other elements between them.
[0035] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.
[0036] Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers, or sections, these elements, components, regions, layers, or sections are not limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer, or section from another. Thus, a first element, component, region, layer, or section as referred to in the examples described herein may also be referred to as a second element, component, region, layer, or section without departing from the teachings of the examples.
[0037] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations of "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relationship terms used herein will be interpreted accordingly.
[0038] The terms used herein are for the purpose of describing various examples only and are not intended to limit the disclosure. Unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. The terms "comprises", "comprising", and "has" list the stated features, quantities, operations, elements, components, and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, elements, components, and / or combinations thereof.
[0039] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the figures may occur. Thus, the examples described herein are not limited to the specific shapes shown in the figures, but include changes in shape that occur during manufacturing.
[0040] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.
[0041] According to one aspect of the present application, there is provided an air reservoir, as Figure 1As shown, the air storage cylinder includes a fiber layer 3, a cylinder body 1 and two end caps 2. The axis of the cylinder body 1 extends along a predetermined direction L. The dimension of the cylinder body 1 in the predetermined direction is larger than the dimension of the end cap 2 in the predetermined direction. The cylinder body 1 includes two openings opposite to each other in the predetermined direction L. The two end caps 2 are respectively welded to the two ends of the cylinder body 1 in the predetermined direction L to close the two openings, and the fiber layer 3 is wound around the cylinder body 1. In the air storage cylinder of the present application, the dimension of the cylinder body 1 in the predetermined direction is larger than the dimension of the end cap 2 in the predetermined direction. The two end caps 2 are respectively welded to the two ends of the cylinder body 1, and the whole air storage cylinder is oblong. The welding surface after welding the cylinder body and the end cap can meet the bursting requirements of the air storage cylinder when it is applied in the air suspension, and the welded part is no longer the weak point of the air storage cylinder. Since the air storage cylinder is oblong, the middle position of the cylinder body 1 is the weak point of the air storage cylinder, which enables the fiber layer 3 to only wind around the cylinder body 1 to effectively improve the strength and durability of the air storage cylinder. Thus, the fiber layer 3 to be used is reduced, and the manufacturing cost of the air storage cylinder is lowered.
[0042] In addition, by the way of winding the fiber layer 3 around the cylinder body 1, the air storage cylinder of the present application can meet the bursting pressure of 60 bar. When the air storage cylinder is applied in the air suspension, the working pressure of the air storage cylinder is 0 - 18 bar, and the air storage cylinder can meet the bursting pressure requirement during use.
[0043] Optionally, the fiber layer 3 can be a layered structure formed by winding fiber materials such as glass fiber and carbon fiber around the cylinder body 1. The cylinder body 1 and the end caps 2 are both made of plastic materials, and the cylinder body 1 and the end caps 2 can be fixed by welding.
[0044] In the embodiment of the present application, as Figure 4 and Figure 5As shown in the figure, the cylinder body 1 includes a cylinder main body 11 and two first welding parts 12. The cylinder main body 11 includes two first fitting surfaces S3 that face away from each other in a predetermined direction L. The two first fitting surfaces S3 are respectively used for welding with the second fitting surfaces S4 included in the two cover bodies 21. The two first welding parts 12 are both connected to the inner side wall of the cylinder main body 11. The two first welding parts 12 are respectively located at both ends of the cylinder body 1 in the predetermined direction L. The first welding part 12 is used for welding with the second welding part 22 in the end cover 2. Optionally, the first welding part 12 includes a plurality of first welding portions 121. The plurality of first welding portions 121 are all connected to the inner side wall of the cylinder main body 11. The plurality of first welding portions 121 are arranged at intervals along the circumferential direction of the cylinder main body 11. Any one of the first welding portions 121 includes a first welding surface S1 facing the end cover 2. The first welding surface S1 is used for welding with the second welding surface S2 in the following second welding part 221. Through the welding of the first welding surface S1 and the second welding surface S2, and the first fitting surface S3 and the second fitting surface S4, the welding of the cylinder body 1 and the end cover 2 can be realized. The setting of the first welding surface S1 and the second welding surface S2 can increase the welding area between the cylinder body 1 and the end cover 2 and improve the firmness of the welding between the cylinder body 1 and the end cover 2.
[0045] Optionally, taking the plane perpendicular to the predetermined direction L as the projection plane, the orthographic projections of the plurality of first welding portions 121 included in one first welding part 12 on the projection plane and the orthographic projections of the plurality of first welding portions 121 included in the other first welding part 12 on the projection plane are arranged alternately. That is to say, the first welding portions 121 located on both sides of the cylinder main body 11 have a certain angular offset. This design optimizes the layout of the first welding surface S1 and is convenient for the processing of the cylinder body 1.
[0046] Furthermore, as Figure 2 and Figure 4 shown in the figure, the cylinder body 1 further includes a first extension piece 13 and a second extension piece 14. A first extension piece 13 is correspondingly arranged on the side of each first welding portion 121 facing away from the cylinder main body 11. There is a certain distance between the first extension piece 13 and the third extension piece 23 of the following end cover 2, so that a first overflow groove 71 is formed between the first extension piece 13 and the third extension piece 23. The number of the second extension pieces 14 is two. The two second extension pieces 14 are fixed on the outer side wall of the cylinder main body 11. The two second extension pieces 14 are respectively located at both ends of the two cylinder main bodies 11 in the predetermined direction L. The second extension piece 14 surrounds the cylinder main body 11 in a circle along the circumferential direction of the cylinder main body 11. There is a certain distance between the second extension piece 14 and the fourth extension piece 24 of the following, so that a second overflow groove 72 is formed between the second extension piece 14 and the fourth extension piece 24. When welding the second welding surface S2 and the second welding surface S2, the plastic solution will overflow into the first overflow groove 71 and the second overflow groove 72. Preferably, each part in the cylinder body 1 is integrally formed.
[0047] In an embodiment of the present application, as Figure 3 and Figure 6 shown, the end cover 2 includes a cover body 21 and a second welding member 22. The cover body 21 includes a second fitting surface S4 facing the cylinder body 1. The two second fitting surfaces S4 included in the two cover bodies 21 are respectively welded to the two first fitting surfaces S3 of the cylinder body 1. The second welding member 22 may include a plurality of second welding portions 221. The number of the second welding portions 221 is the same as the number of the first welding portions 121, and the positions of the second welding portions 221 correspond to the positions of the first welding portions 121. The plurality of second welding portions 221 are all fixed on the inner side wall of the cover body 21. The end face of the second welding portion 221 facing the cylinder body 1 is a second welding surface S2. The first welding surface S1 of the plurality of first welding portions 121 is welded to the second welding surface S2 of the plurality of second welding portions 221, so as to realize the welding between the two end covers 2 and the cylinder body 1.
[0048] Furthermore, the end cover 2 further includes a third extension member 23 and a fourth extension member 24. A third extension member 23 is provided on one side of any second welding portion 221 facing away from the cover body 21. The first extension member 13 and the corresponding third extension member 23 are arranged at intervals, so that a first overflow groove 71 is formed between the third extension member 23 and the first extension member 13. The fourth extension member 24 is fixed on the side of the cover body 21 facing away from the second welding member 22. The fourth extension member 24 surrounds the cover body 21 in a circumferential direction of the cover body 21 for one week. The second extension member 14 and the fourth extension member 24 are arranged at intervals, and a second overflow groove 72 is formed between the second extension member 14 and the fourth extension member 24. When welding the first welding surface S1 and the second welding surface S2, the plastic solution will overflow to the locations where the first overflow groove 71 and the second overflow groove 72 are located.
[0049] In addition, as Figure 3 and Figure 6 shown, the end cover 2 further includes a first baffle 25 and a second baffle 26. A first baffle 25 is provided on the inner side wall of each third extension member 23. A part of the first baffle 25 protrudes towards the first extension member 13 relative to the third extension member 23. The inner side wall of the first extension member 13 is in contact with the first baffle 25. A second baffle 26 is provided on the outer side wall of the fourth extension member 24. A part of the second baffle 26 protrudes relative to the fourth extension member 24. The inner side wall of the second baffle 26 is in contact with the second extension member 14. In this way, the first baffle 25 and the second baffle 26 can respectively close the first overflow groove 71 and the second overflow groove 72 to prevent the plastic solution from overflowing from the first overflow groove 71 and the second overflow groove 72, thereby improving the cleanliness and aesthetics of the joint. At the same time, by providing the first baffle 25 and the second baffle 26, the influence of splashes, oxide layers and other pollutants generated during the welding process on the sealing performance of the gas storage cylinder can be reduced.
[0050] Optionally, each first welding portion 121 is provided with a first groove 122, the first groove 122 penetrates through the first welding portion 121 along a predetermined direction L, each second welding portion 221 is provided with a second groove 222, and the second groove 222 recesses from the second welding surface S2 into the interior of the second welding portion 221 in the direction of the predetermined direction L. By providing the first groove 122 and the second groove 222, the overflow material generated during the welding of the first welding surface S1 and the second welding surface S2 can be reduced.
[0051] In addition, the cylinder body 1 further includes two first positioning pins 15, both of the two first positioning pins 15 are fixed on the outer side wall of the cylinder main body 11, and the two first positioning pins 15 are respectively located at both ends of the cylinder main body 11 in the predetermined direction L; the end cover 2 includes a second positioning pin 27, the second positioning pin 27 is fixed on the outer side wall of the cover body 21, and the two second positioning pins 27 included in the two end covers 2 respectively correspond to the two first positioning pins 15. When assembling the cylinder body 1 and the end cover 2, the positions of the first positioning pin 15 and the second positioning pin 27 can be aligned to realize the correspondence of the positions of the cylinder body 1 and the end cover 2, thereby improving the convenience of installation between the cylinder body 1 and the end cover 2.
[0052] Optionally, the end cover 2 further includes a reinforcing rib 28, and the reinforcing rib 28 is arranged inside the cover body 21 to improve the structural strength of the end cover 2. Preferably, each part of the end cover 2 is integrally formed.
[0053] As Figure 1 shown, the air storage cylinder further includes an exhaust member 4, a quick connector 5 and a nozzle 6. An exhaust member 4 is provided on one of the end covers 2, and the exhaust member 4 includes an exhaust hole 41, and the exhaust hole 41 can communicate with the interior of the end cover 2. The quick connector 5 and the nozzle 6 are both provided on the exhaust member 4 and communicate with the exhaust hole 41. The quick connector 5 is used for connecting with a working pipeline, and the nozzle 6 is used for quick charging and discharging before loading or during test detection.
[0054] According to another aspect of the present application, an air suspension is provided. The air suspension includes the above-mentioned air storage cylinder, which has the same technical effects as the above-mentioned air storage cylinder and will not be elaborated here.
[0055] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An air receiver, characterized in that, The air storage cylinder includes a fiber layer, a cylinder body, and two end caps. The axis of the cylinder body extends along a predetermined direction. The dimension of the cylinder body in the predetermined direction is greater than the dimension of the end cap in the predetermined direction. The cylinder body includes two openings opposite to each other in the predetermined direction. The two end caps are respectively welded to the two ends of the cylinder body in the predetermined direction to close the two openings. The fiber layer winds around the cylinder body.
2. The air receiver according to claim 1, wherein The cylinder body includes a cylinder main body and two first welding parts. The two first welding parts are both connected to the inner side wall of the cylinder main body, and the two first welding parts are respectively located at the two ends of the cylinder body in the predetermined direction. The end cap includes a cap body and a second welding part. The second welding part is fixed to the inner side wall of the cap body. The two ends of the cylinder main body are respectively welded to the two cap bodies, and the two first welding parts are respectively welded to the two second welding parts included in the two end caps.
3. The air receiver according to claim 2, wherein, The first welding part includes a plurality of first welding portions. The plurality of first welding portions are arranged at intervals along the inner side wall of the cylinder main body. The end cap includes a plurality of second welding portions. The plurality of second welding portions are arranged at intervals along the inner side wall of the cap body. The plurality of first welding portions are respectively welded to the plurality of second welding portions.
4. The air receiver according to claim 3, characterized in that, On one side of any first welding portion facing away from the cylinder main body, a first extension is provided. On the two ends of the cylinder main body in the predetermined direction, second extensions are provided. The two second extensions are both fixed to the outer side wall of the cylinder main body. On one side of any second welding portion facing away from the cap body, a third extension is provided. On the outer side wall of the cap body, a fourth extension is provided. The first extensions on the first welding portions and the third extensions on the second welding portions welded to the first welding portions are arranged at intervals. The two second extensions are respectively arranged at intervals with the two fourth extensions included in the two end caps.
5. The air receiver according to claim 4, wherein, For each third extension, a first baffle is correspondingly provided. A part of the first baffle protrudes towards the first extension relative to the third extension, and the inner side wall of the first extension is attached to the first baffle. On the outer side wall of the fourth extension, a second baffle is provided. A part of the second baffle protrudes towards the second extension relative to the fourth extension, and the outer side wall of the second extension is attached to the second baffle.
6. The air reservoir according to claim 3, characterized in that, The first welding portion includes a first groove. The first groove penetrates through the first welding portion along the predetermined direction. The second welding portion includes a second groove. The second groove penetrates through the second welding portion along the predetermined direction.
7. The air reservoir according to claim 6, wherein Taking the plane perpendicular to the predetermined direction as the projection plane. The orthographic projections of the plurality of first welding portions included in one first welding part on the projection plane and the orthographic projections of the plurality of first welding portions included in the other first welding part on the projection plane are alternately arranged.
8. The air reservoir according to claim 2, wherein The cylinder body further includes two first positioning pins. The two first positioning pins are both fixed to the outer side wall of the cylinder main body, and the two first positioning pins are respectively located at the two ends of the cylinder main body in the predetermined direction. The end cover includes a second positioning pin, the second positioning pin is fixed on the outer side wall of the cover body, and the two second positioning pins included in the two end covers respectively correspond to the two first positioning pins.
9. The air receiver according to any one of claims 1-8, characterized in that, The end cover and the cylinder body are made of plastic material.
10. An air suspension, characterized in that, The air suspension includes the air storage cylinder according to any one of claims 1-9.