Air suspension structure of light commercial vehicle

Abstract

The utility model discloses an air suspension structure of a light commercial vehicle, which is arranged on two sides of an axle in pairs and comprises a plate spring arranged on the front side of the axle and an air spring arranged on the rear side of the axle. The suspension bracket is designed to be Z-shaped, so that the air spring can be arranged on one side of a vehicle tail to be matched with the steel plate spring at the front end, the comfort of passengers is improved, meanwhile, the cost economy is met, and the height adjusting function of the rear portion of a vehicle body can be achieved when the air bag inflation and deflation functions are matched.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle suspension, and in particular to an air suspension structure for light commercial vehicles. Background Technology

[0002] Figure 1 The demonstration showcased an existing suspension system for light commercial vehicles, most of which employs a leaf spring structure for the rear suspension. This rigid spring structure offers poor comfort, especially when the vehicle is traveling on bumpy roads, resulting in a very unpleasant ride for the driver. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide an air suspension structure for light commercial vehicles to improve comfort.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An air suspension structure for a light commercial vehicle, wherein the suspension is positioned on both sides of the axle, characterized in that it includes a leaf spring positioned on the front side of the axle and an air spring positioned on the rear side of the axle.

[0006] In a preferred embodiment of the present invention, a Z-shaped connecting bracket is further included to connect the plate spring and the air spring together. The plate spring is connected to the upper side of the connecting bracket, and the air spring is connected to the lower side of the connecting bracket.

[0007] In a preferred embodiment of the present invention, the connecting bracket is composed of a base and a lower support plate extending rearward from the bottom of the base, and the air spring is placed on the lower support plate.

[0008] In a preferred embodiment of the present invention, one end of the leaf spring is connected to the top of the seat.

[0009] In a preferred embodiment of the present invention, a thrust rod is further arranged between the paired suspensions, and the thrust rod is connected to the top of the connecting bracket.

[0010] In a preferred embodiment of the present invention, a vibration damper is further provided inside the connecting bracket.

[0011] The beneficial effects of this utility model are as follows:

[0012] The air suspension structure for light commercial vehicles provided by this utility model designs the suspension bracket in a Z-shape, allowing the air spring to be arranged on one side of the rear of the vehicle in conjunction with the leaf spring at the front. This improves passenger comfort while simplifying the rear structure of the rear suspension, achieving cost-effectiveness. When used in conjunction with the airbag inflation / deflation function, it also enables the height adjustment function of the rear of the vehicle. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of existing technology.

[0015] Figure 2 This is a side view of the present invention.

[0016] Figure 3 This is a top view of the present invention. Detailed Implementation

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. "Longitudinal (X direction)", "lateral (Y direction)" and "vertical (Z direction)" are terms of spatial coordinate system in the automotive field, which are professional terms well known to those skilled in the art. The above description is for the purpose of simplifying the description of this utility model, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0018] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0019] When a component is described in the specification as being "on", "fixed" to, "connected" to, or "joined" to another component, the component may be directly located on, fixed to, connected to, joined to, or in contact with the other component, or there may be an intermediate component present.

[0020] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements.

[0021] Figure 2 and Figure 3 This air suspension structure is shown, which mainly consists of leaf springs 11, air springs 60, and connecting brackets 10 that connect the two together. A pair of suspensions are positioned opposite each other on the two wheel sides of the axle 20, connecting the axle 20 and the vehicle body to provide wheel-side vertical recovery and vibration damping functions.

[0022] The connecting bracket 10 is mounted on the axle 20, and the axle 30 passes through the middle of the seat 12. A lower support plate 13 extends longitudinally rearward from the bottom of the seat 12. The air spring 60 is placed on the lower support plate 13 and connected to the rear end of the vehicle body. The leaf spring 11 is connected to the top of the connecting bracket 10 and extends longitudinally forward to connect to the front end of the vehicle body, thus forming a Z-shaped connection structure with staggered front and rear vehicle body connection points. This connection structure allows for the placement of a large-diameter air spring 60 at the rear connection point, improving the suspension's load-bearing capacity. Furthermore, since the air spring 60's inflation volume can be adjusted as needed during driving, the rear-mounted air spring 60 also facilitates adjusting the vehicle height by changing the air spring's inflation volume when unloading cargo at the rear.

[0023] The thrust rod 40, used to connect the two suspension systems, is positioned above the base 12 to suppress vehicle roll during driving. The shock absorber 50 is located inside the connecting bracket 10.

Claims

1. A light commercial vehicle air suspension structure, the suspension being provided in pairs on both sides of an axle, characterized in that, The plate spring is arranged on the front side of the axle, the air spring is arranged on the rear side of the axle, a Z-shaped connecting bracket is arranged to connect the plate spring and the air spring together, the plate spring is connected to the upper side of the connecting bracket, the air spring is connected to the lower side of the connecting bracket, and a thrust rod is arranged between the pair of suspensions and connected to the top of the connecting bracket.

2. A light commercial vehicle air suspension arrangement according to claim 1, characterised in that, The connecting bracket is composed of a seat body and a lower supporting plate extending out from the bottom of the seat body to the rear side, and the air spring is arranged on the lower supporting plate.

3. A light commercial vehicle air suspension arrangement according to claim 2, characterised in that, One end of the plate spring is connected to the top of the seat body.

4. A light commercial vehicle air suspension arrangement according to claim 2 or 3, characterised in that, A shock absorber is arranged in the inner side of the connecting bracket.

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