CN213799935U

CN213799935U - Front suspension assembly of air bag of cab

Info

Publication number: CN213799935U
Application number: CN202022913137.XU
Authority: CN
Inventors: 韦钦洲; 付兵
Original assignee: Hubei Zhouhui Auto Parts Co ltd
Current assignee: Hubei Zhouhui Auto Parts Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-07-27
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a cab airbag front suspension assembly, which relates to the technical field of automobile accessories and comprises a stabilizer bar, two swing arm assemblies oppositely arranged at two ends of the stabilizer bar and two front suspension upper bracket assemblies; the rear end of the front suspension upper bracket assembly extends downwards and is hinged with the corresponding swing arm assembly; an air bag shock absorber and a hydraulic shock absorber are arranged between the front end of the front suspension upper bracket assembly and the corresponding swing arm assembly.

Description

Front suspension assembly of air bag of cab

Technical Field

The utility model relates to the technical field of auto-parts, specifically a suspension assembly before driver's cabin gasbag.

Background

At present, more and more commercial vehicles in China adopt full-floating cab suspension, but many enterprises still adopt mechanical springs as elastic elements, and although the structure is simple and the technology is mature, the vibration isolation effect is not ideal and the requirement of high riding comfort cannot be met.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a suspension assembly before driver's cabin gasbag adopts two gasbag bumper shock absorbers and two hydraulic shock absorbers as shock attenuation elastic element, compares with metal spring, has advantages such as the quality is little, the travelling comfort is good, fatigue-resistant, long service life, and it has shock attenuation and noise cancelling action simultaneously.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a cab airbag front suspension assembly comprises a stabilizer bar, two swing arm assemblies oppositely arranged at two ends of the stabilizer bar and two front suspension upper bracket assemblies; the rear end of the front suspension upper bracket assembly extends downwards and is hinged with the corresponding swing arm assembly; an air bag shock absorber and a hydraulic shock absorber are arranged between the front end of the front suspension upper bracket assembly and the corresponding swing arm assembly.

The further improvement lies in that: the hydraulic shock absorber is located outside the airbag shock absorber.

The further improvement lies in that: an upper limiting device and a lower limiting device are further arranged between the front suspension upper bracket assembly and the corresponding swing arm assembly, the upper end of the upper limiting device and the lower end of the lower limiting device are connected with the front suspension upper bracket assembly, and the lower ends of the upper limiting device and the lower limiting device are connected with the swing arm assembly through rubber buffer blocks.

The further improvement lies in that: the height adjusting device is characterized by further comprising two height valves and two adjusting rods, the height valves are connected with corresponding swing arm assemblies through first supports, one ends of the adjusting rods are connected with the height valves, and the other ends of the adjusting rods are connected with the adjacent front suspension upper support assemblies through second supports.

The further improvement lies in that: the air pipe is used for connecting the two height valves and the two air bag shock absorber assemblies and is tied to the stabilizer bar through the strap.

The further improvement lies in that: the front suspension upper bracket assembly comprises an L-shaped body, one end of the body is used for being connected with the swing arm assembly, the bottom of the other end of the body is provided with a limiting block, and the limiting block is provided with a first limiting groove matched with the upper end of the air bag shock absorber; the other end outside joint of body has the fixed plate, the front side of fixed plate is provided with the layer board, the layer board is provided with the second spacing groove with hydraulic shock absorber upper end looks adaptation.

The further improvement lies in that: the upper end of the fixing plate is bent forwards and extends upwards to form an extending plate, and a notch part is arranged at the position, opposite to the supporting plate, of the extending plate.

The further improvement lies in that: the upper end of the air bag shock absorber is fixed in the first limit groove through an L-shaped connecting plate.

The further improvement lies in that: the connecting plate is connected with the air bag shock absorber and the limiting block through bolts.

The further improvement lies in that: spacing block and connecting plate all offer the groove of dodging that is used for dodging the gasbag bumper shock absorber.

The beneficial effects of the utility model reside in that:

1. the device adopts the gasbag bumper shock absorber to assist hydraulic damper simultaneously, therefore the natural frequency of vibration is unchangeable under any load, makes spring assembly have almost unchangeable performance, and the performance of absorbing high-frequency vibration and sound insulation simultaneously is better, can adapt to multiple operating mode, has improved whole car ride comfort and has driven and take the travelling comfort.

2. Compared with a metal spring, the service life is longer.

3. The air bag shock absorber is used for assisting the hydraulic shock absorber, so that the driving safety is further improved.

Drawings

FIG. 1 is a front view of a cab airbag front suspension assembly in an embodiment of the present invention;

FIG. 2 is a side view of a cab airbag front suspension assembly in an embodiment of the present invention;

FIG. 3 is a top view of a cab airbag front suspension assembly in an embodiment of the present invention;

FIG. 4 is a perspective view of a front suspension assembly of an air bag in a cab of an embodiment of the present invention;

fig. 5 is a front view of a front suspension upper bracket assembly according to an embodiment of the present invention;

FIG. 6 is a side view of a front suspension upper bracket assembly in an embodiment of the present invention;

FIG. 7 is a top view of a front suspension upper bracket assembly in an embodiment of the present invention;

fig. 8 is a perspective view of a front suspension upper bracket assembly in an embodiment of the present invention;

fig. 9 is a schematic view of the connection of the airbag shock absorber according to the embodiment of the present invention.

Reference numerals:

1-a stabilizer bar; 11-a swing arm assembly;

2-front suspension upper bracket assembly; 20-body; 21-fixing the plate; 22-an extension plate; 23-a pallet; 24-a second limit groove; 25-a limiting block; 26-a first limit groove; 27-a notch portion;

3-an airbag shock absorber; 31-a connecting plate; 32-bolt; 33-avoidance groove;

4-a hydraulic shock absorber;

5-altitude valve; 51-adjusting rod; 52-a first bracket; 53-a second scaffold;

6-trachea;

7-upper and lower limit devices.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Referring to fig. 1 to 4, an embodiment of the present invention provides a front suspension assembly of an air bag in a cab, including a stabilizer bar 1, two swing arm assemblies 11 oppositely disposed at two ends of the stabilizer bar 1, and two front suspension upper bracket assemblies 2; the rear end of the front suspension upper bracket assembly 2 extends downwards and is hinged with the corresponding swing arm assembly 11; an air bag shock absorber 3 and a hydraulic shock absorber 4 are arranged between the front end of the front suspension upper bracket assembly 2 and the corresponding swing arm assembly 11. Specifically, the hydraulic damper 4 is located outside the airbag damper 3. An upper limiting device 7 and a lower limiting device 7 are further arranged between the front suspension upper bracket assembly 2 and the corresponding swing arm assembly 11, the upper end of the upper limiting device 7 is connected with the front suspension upper bracket assembly 2, and the lower end of the upper limiting device 7 is connected with the swing arm assembly 11 through a rubber buffer block.

The front suspension assembly of the air bag in the cab further comprises two height valves 5 and two adjusting rods 51, the height valves 5 are connected with the corresponding swing arm assemblies 11 through first supports 52, one ends of the adjusting rods 51 are connected with the height valves 5, and the other ends of the adjusting rods 51 are connected with the adjacent front suspension upper support assemblies 2 through second supports 53. Specifically, the air pipe 6 is used for connecting the two height valves 5 and the two air bag shock absorbers 3, and the air pipe 6 is tied to the stabilizer bar 1 through a hoop.

Referring to fig. 5 to 9, the front suspension upper bracket assembly 2 includes an L-shaped body 20, one end of the body 20 is used for connecting the swing arm assembly 11, the bottom of the other end of the body 20 is provided with a limit block 25, and the limit block 25 is provided with a first limit groove 26 adapted to the upper end of the airbag shock absorber 3; the fixed plate 21 is clamped on the outer side of the other end of the body 20, the supporting plate 23 is arranged on the front side of the fixed plate 21, and the supporting plate 23 is provided with a second limiting groove 24 matched with the upper end of the hydraulic shock absorber 4. Specifically, the upper end of the fixing plate 21 is bent forward and extended upward to form an extension plate 22, and a notch 27 is provided at a position of the extension plate 22 opposite to the support plate 23. The upper end of the airbag cushion 3 is fixed to the first stopper groove 26 by an L-shaped connecting plate 31. The connecting plate 31 is connected with the airbag shock absorber 3 and the stopper 25 by bolts. The limiting block 25 and the connecting plate 31 are provided with avoidance grooves for avoiding the airbag shock absorbers 3.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims

1. The utility model provides a suspension assembly before driver's cabin gasbag, includes stabilizer bar (1) and two swing arm assembly (11) of relative setting at stabilizer bar (1) both ends, its characterized in that: the device also comprises two front suspension upper bracket assemblies (2); the rear end of the front suspension upper bracket assembly (2) extends downwards and is hinged with the corresponding swing arm assembly (11); an air bag shock absorber (3) and a hydraulic shock absorber (4) are arranged between the front end of the front suspension upper bracket assembly (2) and the corresponding swing arm assembly (11).

2. The cab airbag front suspension assembly of claim 1, wherein: the hydraulic shock absorber (4) is positioned on the outer side of the air bag shock absorber (3).

3. The cab airbag front suspension assembly of claim 1, wherein: an upper limiting device and a lower limiting device (7) are further arranged between the front suspension upper bracket assembly (2) and the corresponding swing arm assembly (11), the upper end of the upper limiting device (7) is connected with the front suspension upper bracket assembly (2), and the lower end of the upper limiting device (7) is connected with the swing arm assembly (11) through a rubber buffer block.

4. The cab airbag front suspension assembly of claim 1, wherein: the height adjusting device is characterized by further comprising two height valves (5) and two adjusting rods (51), the height valves (5) are connected with corresponding swing arm assemblies (11) through first supports (52), one ends of the adjusting rods (51) are connected with the height valves (5), and the other ends of the adjusting rods (51) are connected with adjacent front suspension upper support assemblies (2) through second supports (53).

5. The cab airbag front suspension assembly of claim 4, wherein: the air pipe (6) is used for connecting the two height valves (5) and the two air bag shock absorbers (3), and the air pipe (6) is tied on the stabilizer bar (1) through a strap.

6. The cab airbag front suspension assembly of claim 1, wherein: the front suspension upper bracket assembly (2) comprises an L-shaped body (20), one end of the body (20) is used for being connected with the swing arm assembly (11), the bottom of the other end of the body (20) is provided with a limiting block (25), and the limiting block (25) is provided with a first limiting groove (26) matched with the upper end of the air bag shock absorber (3); the other end outside joint of body (20) has fixed plate (21), the front side of fixed plate (21) is provided with layer board (23), layer board (23) are provided with second spacing groove (24) with hydraulic shock absorber (4) upper end looks adaptation.

7. The cab airbag front suspension assembly of claim 6, wherein: the upper end of the fixing plate (21) is bent forwards and extends upwards to form an extension plate (22), and a notch part (27) is arranged at the position of the extension plate (22) opposite to the supporting plate (23).

8. The cab airbag front suspension assembly of claim 6, wherein: the upper end of the air bag shock absorber (3) is fixed on the first limit groove (26) through an L-shaped connecting plate (31).

9. The cab airbag front suspension assembly of claim 8, wherein: the connecting plate (31) is connected with the air bag shock absorber (3) and the limiting block (25) through bolts.

10. The cab airbag front suspension assembly of claim 9, wherein: spacing block (25) and connecting plate (31) all set up and are used for dodging the groove of dodging of gasbag bumper shock absorber (3).