Air suspension, vehicle chassis and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to an air suspension, a vehicle chassis and a vehicle. The air suspension comprises a lifting air bag, an air bag upper support and an air bag lower support, the air bag upper support comprises a first plate body and a second plate body which are connected with each other at a preset angle, the first plate body is connected with the top of the lifting air bag, the second plate body is connected with an axle, and the air bag lower support is connected with the bottom of the lifting air bag. And the side part of the air bag lower bracket is connected with the frame. During use, when the lifting air bag is inflated or deflated, the lifting air bag drives the air bag upper support and the air bag lower support to be relatively far away from or close to each other, so that axle lifting is achieved. The first plate body and the second plate body directly exert lifting force, axle lifting is achieved without a chain and an air bag guide mechanism, the whole structure is simple and reliable, the first plate body and the second plate body which form the preset angle can bypass a plurality of structural parts, and the situation that the structural parts are disturbed and abraded in the lifting process is avoided; therefore, the structural reliability and the service life of the air suspension are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an air suspension, a vehicle chassis and a vehicle. Background Art

[0002] At present, airbags are commonly used for lifting axles of vehicles. The airbags are arranged between the frame and the axle, and are driven by chains and guide mechanisms. When the airbags are inflated, the axle is lifted by the chains. The form of lifting the axle by chains has the following disadvantages: the connecting bracket on the airbag must have a vertical guide mechanism, the chain and the airbag guide mechanism will form an angle during the lifting process, which may easily cause the guide mechanism to wear, and the airbag guide mechanism needs to be lubricated. Therefore, how to solve a series of problems caused by the use of chains and guide mechanisms in the current axle lifting structure is a technical problem that needs to be solved in this field. Utility Model Content

[0003] In view of this, the present application provides an air suspension, a vehicle chassis and a vehicle, which do not require the use of chains and guide mechanisms, thereby improving the structural reliability and service life of the air suspension.

[0004] In a first aspect, the present application provides an air suspension, comprising: a lifting airbag; an upper airbag bracket, comprising a first plate and a second plate connected to each other at a preset angle, the first plate being connected to the top of the lifting airbag, and the second plate being connected to the axle; and a lower airbag bracket, the upper surface of the lower airbag bracket being connected to the bottom of the lifting airbag, and the side of the lower airbag bracket being connected to the vehicle frame.

[0005] When the present invention is used, when the lifting airbag is inflated or deflated, the lifting airbag drives the upper airbag bracket and the lower airbag bracket to move relatively far away or close to each other, thereby making the axle and the frame relatively far away or close to each other, and realizing the lifting and lowering of the axle. During the lifting process, the first plate body and the second plate body at a preset angle directly apply the lifting force, and the lifting and lowering of the axle is realized without the need for a chain and an airbag guide mechanism. The entire structure is simple and reliable, and the first plate body and the second plate body at a preset angle can bypass multiple structural parts, avoiding interference and wear of the structural parts during the lifting process, thereby improving the structural reliability and service life of the air suspension.

[0006] In combination with the first aspect, in a possible implementation manner, the airbag upper bracket further includes a plurality of reinforcing ribs, and the reinforcing ribs are arranged on a plate surface of the first plate body and a plate surface of the second plate body.

[0007] In combination with the first aspect, in a possible implementation, it further includes: a connecting plate connected to the axle, and the bottom end of the second plate body is fixed to the connecting plate.

[0008] In combination with the first aspect, in a possible implementation, both ends of the connecting plate are respectively connected to a first guide arm and a second guide arm, the first guide arm and the second guide arm are both connected to the axle, and the first guide arm and the second guide arm are respectively located on both sides of the lifting airbag.

[0009] In combination with the first aspect, in a possible implementation manner, the connecting plate is connected to the axle.

[0010] In combination with the first aspect, in a possible implementation manner, the preset angle is 90°.

[0011] In combination with the first aspect, in a possible implementation, the airbag lower bracket includes a support plate, a first connecting member and a second connecting member, the first connecting member and the second connecting member are respectively arranged on opposite sides of the support plate, and the first connecting member and the second connecting member are both connected to the frame.

[0012] In combination with the first aspect, in a possible implementation, the first connecting member includes a first vertical plate, a first horizontal plate and a first side plate, the first horizontal plate is connected to the support plate, the first vertical plate is connected to the first horizontal plate, and the first side plate is respectively connected to the first vertical plate and the first horizontal plate; the second connecting member includes a second vertical plate, a second horizontal plate and a second side plate, the second horizontal plate is connected to the support plate, the second vertical plate is connected to the second horizontal plate, and the second side plate is respectively connected to the second vertical plate and the second horizontal plate.

[0013] A second aspect provides a vehicle chassis comprising any of the air suspensions described above.

[0014] The second aspect includes the first aspect, and the technical effects of the second aspect will not be repeated here.

[0015] A third aspect provides a vehicle comprising the aforementioned vehicle chassis.

[0016] The third aspect includes the second aspect, and the technical effects of the third aspect will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic structural diagram of an air suspension provided in one embodiment of the present application.

[0018] Figure 2 Shown is a structural schematic diagram of an air suspension provided in another embodiment of the present application.

[0019] Figure 3 Shown is a structural schematic diagram of an air suspension provided in another embodiment of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The following description is given to enable those skilled in the art to implement and use the utility model and incorporate it into specific application contexts. Various modifications, as well as various uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Thus, the utility model is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.

[0022] In the following detailed description, many specific details are set forth to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the practice of the present invention need not be limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without detailed display to avoid obscuring the present invention.

[0023] The reader is reminded of all documents and literature filed simultaneously with this specification and open to public inspection, and the contents of all such documents and literature are incorporated herein by reference. Unless otherwise directly stated, all features disclosed in this specification (including any attached claims, abstracts and drawings) can be replaced by alternative features for achieving the same, equivalent or similar purposes. Therefore, unless otherwise explicitly stated, each feature disclosed is only an example of a group of equivalent or similar features.

[0024] Note that, where used, the symbols left, right, front, back, top, bottom, forward, reverse, clockwise and counterclockwise are used only for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or direction between the various parts of the object. In addition, the terms "first" and "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Note that, in the case of use, further, preferably, further and more preferably are simple beginnings for explaining another embodiment based on the previous embodiment, and the content of further, preferably, further or more preferably followed by the above embodiment is combined with the previous embodiment as a complete composition of another embodiment. Several further, preferably, further or more preferably settings followed by the same embodiment can be arbitrarily combined to form another embodiment.

[0027] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary and should not be construed as limiting the scope of protection of the present invention.

[0028] At present, airbags are commonly used for lifting axles of vehicles. The airbags are arranged between the frame and the axle, and are driven by chains and guide mechanisms. When the airbags are inflated, the axle is lifted by the chains. The form of lifting the axle by chains has the following disadvantages: the connecting bracket on the airbag must have a vertical guide mechanism, the chain and the airbag guide mechanism will form an angle during the lifting process, which may easily cause the guide mechanism to wear, and the airbag guide mechanism needs to be lubricated. Therefore, how to solve a series of problems caused by the use of chains and guide mechanisms in the current axle lifting structure is a technical problem that needs to be solved in this field.

[0029] In view of this, the present application provides an air suspension, a vehicle chassis and a vehicle, which do not require the use of chains and guide mechanisms, thereby improving the structural reliability and service life of the air suspension.

[0030] An exemplary air suspension is as follows:

[0031] Figure 1 FIG. 1 is a schematic diagram of the structure of an air suspension provided by an embodiment of the present application. The present application provides an air suspension. In one embodiment, as Figure 1As shown, the air suspension includes: a lifting airbag 1, an upper airbag bracket 2 and a lower airbag bracket 3. The upper airbag bracket 2 includes a first plate 201 and a second plate 202 connected to each other at a preset angle, the first plate 201 is connected to the top of the lifting airbag 1, and the second plate 202 is connected to the axle 5. The upper surface of the lower airbag bracket 3 is connected to the bottom of the lifting airbag 1, and the side of the lower airbag bracket 3 is connected to the vehicle frame.

[0032] When this embodiment is used, when the lifting airbag 1 is inflated or deflated, the lifting airbag 1 drives the upper airbag bracket 2 and the lower airbag bracket 3 to move relatively far away or close, so that the axle 5 and the frame move relatively far away or close, and the axle 5 is lifted and lowered. During the lifting process, the first plate 201 and the second plate 202 at a preset angle directly apply the lifting force, and the axle 5 is lifted and lowered without the need for a chain and an airbag guide mechanism. The entire structure is simple and reliable, and the first plate 201 and the second plate 202 at a preset angle can bypass multiple structural parts to avoid interference and wear of the structural parts during the lifting process, thereby improving the structural reliability and service life of the air suspension. Specifically, the preset angle can be set to 90°, that is, the first plate 201 and the second plate 202 are combined to form a right-angle plate.

[0033] In one embodiment, if Figure 1 As shown, the airbag upper bracket 2 also includes a plurality of reinforcing ribs 203, which are arranged on the plate surface of the first plate body 201 and the plate surface of the second plate body 202. In this embodiment, the reinforcing ribs 203 can improve the overall strength of the first plate body 201 and the second plate body 202 to sufficiently support the lifting process.

[0034] Figure 2 FIG. 2 is a schematic diagram of the structure of an air suspension provided by another embodiment of the present application. Figure 1 and Figure 2 As shown, the air suspension further includes a connecting plate 4, which is connected to the axle 5, and the bottom end of the second plate 202 is fixed on the connecting plate 4. In this embodiment, the second plate 202 is fixed by the connecting plate 4, and the installation of the airbag upper bracket 2 can be facilitated without modifying the axle 5.

[0035] In a specific embodiment, if Figure 2 As shown, two ends of the connecting plate 4 are respectively connected to the first guide arm 6 and the second guide arm 7 , the first guide arm 6 and the second guide arm 7 are both connected to the axle 5 , and the first guide arm 6 and the second guide arm 7 are respectively located on both sides of the lifting airbag 1 .

[0036] In a specific embodiment, the connecting plate 4 is connected to the axle 5 . In this embodiment, the connecting plate 4 is not connected to the first guide arm 6 and the second guide arm 7 , but is directly connected to the axle 5 .

[0037] Figure 3 FIG. 2 is a schematic diagram of the structure of an air suspension provided by another embodiment of the present application. Figure 3 As shown, the axle 5 is provided with a protruding bracket 8, and the bottom end of the second plate 202 is fixed on the protruding bracket 8. In this embodiment, the second plate 202 is directly connected to the protruding bracket 8, so that the airbag upper bracket 2 is firmly connected to the axle 5. Figure 3 In order to more clearly show the connection part of the second plate 202, the first plate 201 and the second plate 202 are not shown in this figure. Specifically, a mounting piece can be mounted on the protruding bracket 8, and then the mounting piece and the airbag upper bracket 2 are connected to each other; or a mounting piece with an annular sleeve hole can be cast on the second plate 202, and then the mounting piece can be mounted on the protruding bracket 8.

[0038] Specifically, Figure 2 As shown, the airbag lower bracket 3 includes a support plate 301, a first connecting member 302 and a second connecting member 303. The first connecting member 302 and the second connecting member 303 are respectively arranged on opposite sides of the support plate 301, and the first connecting member 302 and the second connecting member 303 are both connected to the vehicle frame.

[0039] The first connecting member 302 includes a first vertical plate 3021, a first horizontal plate 3022 and a first side plate 3023. The first horizontal plate 3022 is connected to the support plate 301, the first vertical plate 3021 is connected to the first horizontal plate 3022, and the first side plate 3023 is respectively connected to the first vertical plate 3021 and the first horizontal plate 3022. The first side plate 3021 is used to strengthen the connection between the first vertical plate 3021 and the first horizontal plate 3022, thereby improving the structural strength of the first connecting member 302. The second connecting member 303 includes a second vertical plate 3031, a second horizontal plate 3032 and a second side plate 3033. The second horizontal plate 3032 is connected to the support plate 301, the second vertical plate 3031 is connected to the second horizontal plate 3032, and the second side plate 3033 is respectively connected to the second vertical plate 3031 and the second horizontal plate 3032. The second side plate 3033 is used to reinforce the connection between the second vertical plate 3031 and the second horizontal plate 3032, and improve the structural strength of the second connecting member 303. Specifically, there are two first side plates 3023, and the two first side plates 3023 are respectively arranged at the edges of the first horizontal plate 3022 and the first vertical plate 3021; ​​there are two second side plates 3033, and the two second side plates 3033 are respectively arranged at the edges of the second horizontal plate 3032 and the second vertical plate 3031. In this embodiment, the first vertical plate 3021 and the second vertical plate 3031 can be connected to the frame.

[0040] An exemplary vehicle chassis and vehicle are as follows:

[0041] The present application provides a vehicle chassis, and in one embodiment, the vehicle chassis includes the aforementioned air suspension. During the lifting process of the air suspension, the entire structure is simple and reliable, and the first plate 201 and the second plate 202 at a preset angle can bypass multiple structural parts, avoiding interference and wear of the structural parts during the lifting process, thereby improving the structural reliability and service life of the air suspension, that is, improving the reliability and service life of the entire vehicle chassis.

[0042] The present application also provides a vehicle. In one embodiment, the vehicle includes the aforementioned vehicle chassis.

[0043] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0044] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0045] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0046] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features of this utility model.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An air suspension, characterized in that: include: Lifting airbag (1); An airbag upper bracket (2) comprises a first plate (201) and a second plate (202) connected to each other at a preset angle, wherein the first plate (201) is connected to the top of the lifting airbag (1), and the second plate (202) is connected to the axle (5); and An airbag lower bracket (3), the upper surface of which is connected to the bottom of the lifting airbag (1), and the side of which is connected to the vehicle frame.

2. The air suspension according to claim 1, characterized in that: The airbag upper bracket (2) further comprises a plurality of reinforcing ribs (203), wherein the reinforcing ribs (203) are arranged on the plate surface of the first plate body (201) and on the plate surface of the second plate body (202).

3. The air suspension according to claim 1, characterized in that: Also includes: A connecting plate (4) is connected to the axle (5), and the bottom end of the second plate body (202) is fixed on the connecting plate (4).

4. The air suspension according to claim 3, characterized in that: The two ends of the connecting plate (4) are respectively connected to a first guide arm (6) and a second guide arm (7); the first guide arm (6) and the second guide arm (7) are both connected to the axle (5); the first guide arm (6) and the second guide arm (7) are respectively located on two sides of the lifting airbag (1).

5. The air suspension according to claim 3, characterized in that: The connecting plate (4) is connected to the axle (5).

6. The air suspension according to claim 1, characterized in that: The preset angle is 90°.

7. The air suspension according to claim 1, characterized in that: The airbag lower bracket (3) comprises a support plate (301), a first connecting member (302) and a second connecting member (303), wherein the first connecting member (302) and the second connecting member (303) are respectively arranged on opposite sides of the support plate (301), and the first connecting member (302) and the second connecting member (303) are both connected to the vehicle frame.

8. The air suspension according to claim 7, characterized in that: The first connecting member (302) comprises a first vertical plate (3021), a first horizontal plate (3022) and a first side plate (3023), wherein the first horizontal plate (3022) is connected to the support plate (301), the first vertical plate (3021) is connected to the first horizontal plate (3022), and the first side plate (3023) is respectively connected to the first vertical plate (3021) and the first horizontal plate (3022); The second connecting member (303) comprises a second vertical plate (3031), a second horizontal plate (3032) and a second side plate (3033), wherein the second horizontal plate (3032) is connected to the support plate (301), the second vertical plate (3031) is connected to the second horizontal plate (3032), and the second side plate (3033) is respectively connected to the second vertical plate (3031) and the second horizontal plate (3032).

9. A vehicle chassis, characterized in that: include: An air suspension as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: include: The vehicle chassis as claimed in claim 9.

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