Air suspension lifting mechanism

Abstract

The utility model relates to the field of vehicle suspensions, in particular to an air suspension lifting mechanism. The air suspension lifting mechanism comprises a lifting air bag; the fixed bracket comprises a fixed inner side bracket and a fixed outer side bracket; a first connecting plate is arranged on the fixed inner side bracket, and a second connecting plate is arranged on the fixed outer side bracket; the movable bracket comprises a movable inner side bracket and a movable outer side bracket; a third connecting plate fixedly connected with the lifting air bag is arranged on the movable inner side support, and a fourth connecting plate fixedly connected with the lifting air bag is arranged on the movable outer side support. The first connecting plate and the second connecting plate which are connected with the fixed support and the third connecting plate and the fourth connecting plate which are connected with the movable support are arranged, and the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are fixedly connected with the lifting air bag, so that the lifting air bag is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the field of vehicle suspensions, and particularly to an air suspension lifting mechanism. Background Art

[0002] The existing lifting mechanism for semi-trailers uses an air suspension to lift or lower the axle through a lifting airbag: when the vehicle is driving empty, by lifting one or two axles, the friction between the tires and the ground is reduced, the tire wear is effectively reduced, the service life is prolonged, the turning radius of the vehicle is reduced, and the fuel consumption is reduced; when the vehicle is fully loaded, the lifted axle will automatically drop to ensure the safety of the vehicle.

[0003] The Chinese invention patent application with the publication number CN114179582A discloses an air suspension lifting structure and an assembly method. The air suspension lifting structure includes: a lower bracket, and an upper bracket arranged inside the lower bracket; the lower bracket includes two symmetrically arranged cross plates A, a connecting plate A is arranged between the two cross plates A, and a pin hole A is opened on the cross plate A; the upper bracket includes two symmetrically arranged cross plates B, a connecting plate B is arranged between the two cross plates B. Through this structural design, while reducing the self-weight, the hinge relationship between the upper bracket, the lower bracket and the fixing bracket can be ensured. However, the connecting plate of this air suspension lifting structure is fixed on the lifting airbag, and the lower bracket and the upper bracket abut against the connecting plate, which is not convenient for the installation and disassembly of the lifting airbag.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] In order to improve or solve the technical problem that in the prior art, the connecting plate is directly fixed on the lifting airbag, and the upper bracket and the lower bracket abut against the connecting plate, which is not convenient for the installation and disassembly of the lifting airbag, the utility model provides an air suspension lifting mechanism. The air suspension lifting mechanism includes: a lifting airbag; a fixed bracket, including a fixed inner bracket and a fixed outer bracket fixedly connected with the fixed inner bracket; a first connecting plate fixedly connected with the lifting airbag is arranged on the fixed inner bracket, and a second connecting plate fixedly connected with the lifting airbag is arranged on the fixed outer bracket; a movable bracket, including a movable inner bracket and a movable outer bracket fixedly connected with the movable inner bracket; a third connecting plate fixedly connected with the lifting airbag is arranged on the movable inner bracket, and a fourth connecting plate fixedly connected with the lifting airbag is arranged on the movable outer bracket.

[0006] In the air suspension lifting mechanism of the present utility model, it includes a lifting airbag, a fixed bracket, and a movable bracket. The fixed bracket is relatively fixed to the lifting airbag; when the lifting airbag lifts, the movable bracket rotates relative to the fixed bracket, thereby driving the leaf spring to move to achieve lifting. The fixed bracket includes a fixed inner bracket and a fixed outer bracket. A first connecting plate is provided on the fixed inner bracket, and a second connection is provided on the fixed outer bracket. Both the first connecting plate and the second connecting plate are fixedly connected to the lifting airbag, thus facilitating the installation and disassembly of the lifting airbag; the movable bracket includes a movable inner bracket and a movable outer bracket. A third connecting plate is provided on the movable inner bracket, and a fourth connecting plate is provided on the movable outer bracket. Both the third connecting plate and the fourth connecting plate are fixedly connected to the lifting airbag, thus facilitating the installation and disassembly of the lifting airbag. Through the above settings, in the present utility model, by providing the first connecting plate and the second connecting plate connected to the fixed bracket, and the third connecting plate and the fourth connecting plate connected to the movable bracket, the first connecting plate, the second connecting plate, the third connecting plate, and the fourth connecting plate are all fixedly connected to the lifting airbag, thus facilitating the installation and disassembly of the lifting airbag.

[0007] Further, a first bolt hole is formed in the first connecting plate, and a first bolt matching the first bolt hole is arranged in the first bolt hole; a second bolt hole corresponding to the first bolt hole is formed in the second connecting plate, and the first bolt passes through the first bolt hole and the second bolt hole and is connected to the lifting airbag.

[0008] Further, a first fixing plate is provided on the movable outer bracket, and one end of the first fixing plate away from the movable outer bracket is detachably connected to the movable inner bracket.

[0009] Further, a limiting block adapted to contact the leaf spring is detachably arranged on the first fixing plate.

[0010] Further, it further includes a front bracket, and the front bracket includes a main body and a mounting bolt mounted on the main body; the fixed bracket is sleeved on the circumferential outer side of the mounting bolt, and the movable bracket is rotatably sleeved on the circumferential outer side of the mounting bolt.

[0011] Further, a limiting rod adapted to abut against the main body is provided on the fixed bracket; both ends of the limiting rod are detachably mounted on the fixed outer bracket and the fixed inner bracket through connecting bolts.

[0012] Further, a plurality of connecting holes matching the connecting bolts are formed in the fixed outer bracket and the fixed inner bracket.

[0013] Further, a positioning sleeve is provided between the fixed bracket and the mounting bolt, and a wear-resistant bushing is provided between the movable bracket and the fixed bracket.

[0014] In summary, compared with the prior art, the present utility model has the following beneficial effects:

[0015] (1) By providing a first connecting plate and a second connecting plate connected to the fixed bracket, a third connecting plate and a fourth connecting plate connected to the movable bracket, the first connecting plate, the second connecting plate, the third connecting plate, and the fourth connecting plate are all fixedly connected to the lifting airbag, thereby facilitating the installation and disassembly of the lifting airbag;

[0016] (2) Each component can be connected by standard connecting parts, which is convenient for disassembly and assembly;

[0017] (3) The limiting rod is connected to the fixed bracket through a connecting bolt, and a plurality of connecting holes are provided on the fixed bracket, and the position of the limiting rod can be adjusted, so as to be applicable to different types of front brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings, in which:

[0019] Figure 1 is a schematic diagram of an embodiment of the air suspension lifting mechanism of the present utility model;

[0020] Figure 2 is an exploded view of an embodiment of the air suspension lifting mechanism of the present utility model;

[0021] Figure 3 is another exploded view of an embodiment of the air suspension lifting mechanism of the present utility model.

[0022] List of reference numerals: 1, front bracket; 11, main body; 12, mounting bolt; 2, fixed bracket; 21, fixed inner bracket; 22, fixed outer bracket; 23, positioning sleeve; 24, limiting rod; 25, connecting bolt; 26, connecting hole; 27, first connecting plate; 28, second connecting plate; 29, second fixing plate; 3, movable bracket; 31, movable inner bracket; 32, movable outer bracket; 33, wear-resistant bushing; 34, third connecting plate; 35, fourth connecting plate; 36, first fixing plate; 37, limiting block; 4, lifting airbag. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0024] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "set", "connected" 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 directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In order to improve or solve the technical problem in the prior art that the connecting plate is directly fixed on the lifting airbag, the upper bracket and the lower bracket abut against the connecting plate, which is not convenient for the installation and disassembly of the lifting airbag, the present utility model provides an air suspension lifting mechanism. The air suspension lifting mechanism includes: a lifting airbag 4; a fixed bracket 2, including a fixed inner bracket 21 and a fixed outer bracket 22 fixedly connected to the fixed inner bracket 21; a first connecting plate 27 fixedly connected to the lifting airbag 4 is arranged on the fixed inner bracket 21, and a second connecting plate 28 fixedly connected to the lifting airbag 4 is arranged on the fixed outer bracket 22; a movable bracket 3, including a movable inner bracket 31 and a movable outer bracket 32 fixedly connected to the movable inner bracket 31; a third connecting plate 34 fixedly connected to the lifting airbag 4 is arranged on the movable inner bracket 31, and a fourth connecting plate 35 fixedly connected to the lifting airbag 4 is arranged on the movable outer bracket 32.

[0027] Figure 1 is a schematic diagram of an embodiment of the air suspension lifting mechanism of the present utility model, Figure 2 is an exploded schematic diagram of an embodiment of the air suspension lifting mechanism of the present utility model. As Figure 1 and Figure 2 shown, in one or more embodiments, the air suspension lifting mechanism of the present utility model includes a lifting airbag 4, a fixed bracket 2, a movable bracket 3 and a front bracket 1; the fixed bracket 2 is fixedly relative to the front bracket 1, and the movable bracket 3 rotates relative to the front bracket 1.

[0028] Continue to refer to Figure 1 and Figure 2, in one or more embodiments, the front bracket 1 includes a main body 11 and mounting bolts 12 mounted on the main body 11. Specifically, bolt holes mating with the mounting bolts 12 are formed in the main body 11, the mounting bolts 12 are arranged in the bolt holes, and are fixed to the main body 11 by nuts. Further, a fixing sleeve is provided between the mounting bolts 12 and the main body 11, and the fixing sleeve is used to protect the main body 11.

[0029] Figure 3 is another exploded view of an embodiment of the air suspension lifting mechanism of the present utility model. As Figure 2 and Figure 3 shown, in one or more embodiments, the fixed bracket 2 includes a fixed inner bracket 21 and a fixed outer bracket 22 fixedly connected to the fixed inner bracket 21. Specifically, the fixed inner bracket 21 and the fixed outer bracket 22 are respectively arranged on both sides of the front bracket 1. A through hole is formed in the fixed outer bracket 22, and the fixed outer bracket 22 is sleeved on the circumferential outer side of the mounting bolt 12. Further, a positioning sleeve 23 is provided between the fixed outer bracket 22 and the mounting bolt 12. The connection manner between the fixed inner bracket 21 and the mounting bolt 12 is the same as that between the fixed outer bracket 22 and the mounting bolt 12, and will not be described herein again. Further, a limiting rod 24 is provided between the fixed outer bracket 22 and the fixed inner bracket 21; the limiting rod 24 is generally rectangular parallelepiped and abuts against the lower end of the front bracket 1. Specifically, both ends of the limiting rod 24 are detachably mounted on the fixed outer bracket 22 and the fixed inner bracket 21 by connecting bolts 25. Bolt holes mating with the connecting bolts 25 are formed at both ends of the limiting rod 24. Further, a plurality of connection holes 26 mating with the connecting bolts 25 are formed in the fixed outer bracket 22 and the fixed inner bracket 21. The connecting bolts 25 pass through the connection holes 26, and the screw rods of the connecting bolts 25 are connected to the limiting rod 24, and the nuts of the connecting bolts 25 abut against the fixed outer bracket 22 or the fixed inner bracket 21. Exemplarily, three groups of connection holes 26 are provided, that is, three connection holes 26 are provided on the fixed outer bracket 22, and three corresponding connection holes 26 are provided on the fixed inner bracket 21.

[0030] Continue to refer to Figure 2 and Figure 3, in one or more embodiments, a first connecting plate 27 is provided on the fixed inner bracket 21, and the first connecting plate 27 forms a detachable connection with the lifting airbag 4. Specifically, a first bolt hole is formed in the first connecting plate 27, and a first bolt is arranged in the first bolt hole. The first connecting plate 27 and the lifting airbag 4 form a detachable connection through the first bolt. Exemplarily, there are two second bolt holes. Further, an elastic washer is provided between the first bolt and the first connecting plate 27. Further, a second connecting plate 28 is provided on the fixed outer bracket 22, and the second connecting plate 28 forms a detachable connection with the lifting airbag 4. Specifically, a second bolt hole is formed in the second connecting plate 28, and the first bolt passes through the first bolt hole and the second bolt hole to be connected to the lifting airbag 4. Exemplarily, there is one first bolt hole. Further, a second fixing plate 29 is provided on the fixed inner bracket 21, and one end of the second fixing plate 29 away from the fixed inner bracket 21 forms a detachable connection with the fixed outer bracket 22. Specifically, a bolt hole is formed in the fixed outer bracket 22, and a bolt is arranged in the bolt hole; the second fixing plate 29 forms a detachable connection with the fixed outer bracket 22 through the bolt.

[0031] Continue to refer to Figure 2 and Figure 3 , in one or more embodiments, the movable bracket 3 includes a movable inner bracket 31 and a movable outer bracket 32 fixedly connected to the movable inner bracket 31. Specifically, the movable inner bracket 31 and the movable outer bracket 32 are respectively arranged on both sides of the fixed bracket 2. A through hole is formed in the movable outer bracket 32, and the movable outer bracket 32 is sleeved on the circumferential outer side of the mounting bolt 12. Further, a wear-resistant bushing 33 is provided between the movable outer bracket 32 and the fixed outer bracket 22. Specifically, the wear-resistant bushing 33 is sleeved on the circumferential outer side of the positioning sleeve 23, and the fixed outer bracket 22 is clamped between the wear-resistant bushing 33 and the positioning sleeve 23, and the movable outer bracket 32 is sleeved on the circumferential outer side of the wear-resistant bushing 33. The connection manner between the movable inner bracket 31 and the mounting bolt 12 is the same as the connection manner between the movable outer bracket 32 and the mounting bolt 12, and will not be described herein again.

[0032] Continue to refer to Figure 2 and Figure 3, in one or more embodiments, a third connecting plate 34 is provided on the movable inner bracket 31, and the third connecting plate 34 is fixedly connected to the lifting airbag 4. Specifically, a third bolt hole is formed in the third connecting plate 34, and a bolt is arranged in the third bolt hole; the third connecting plate 34 and the lifting airbag 4 are connected by bolts. Exemplarily, there is one third bolt hole. Further, a fourth connecting plate 35 is provided on the movable outer bracket 32, and the fourth connecting plate 35 is fixedly connected to the lifting airbag 4. Specifically, a fourth bolt hole is formed in the fourth connecting plate 35, and the bolt passes through the third bolt hole and the fourth bolt hole to be connected to the lifting airbag 4. Further, a first fixing plate 36 is provided on the movable outer bracket 32, and one end of the first fixing plate 36 away from the movable outer bracket 32 is detachably connected to the movable inner bracket 31. Specifically, a bolt hole is formed in the movable inner bracket 31, and a bolt is arranged in the bolt hole; the first fixing plate 36 is detachably connected to the movable outer bracket 32 by bolts. Further, a limiting block 37 adapted to contact the leaf spring is detachably arranged on the first fixing plate 36. Specifically, the limiting block 37 is installed on the first fixing plate 36 by bolts.

[0033] The working principle of the present utility model is as follows: when the lifting airbag 4 is lifted, the fixed inner bracket 21 and the fixed outer bracket 22 contact the front bracket 1 through the limiting rod 24 to prevent the fixed inner bracket 21 and the fixed outer bracket 22 from rotating; the movable inner bracket 31 and the movable outer bracket 32 drive the wear-resistant bushing 33 to rotate around the positioning sleeve 23, and the limiting block 37 drives the leaf spring to be lifted.

[0034] So far, the technical solutions of the present utility model have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. An air suspension lifting mechanism, characterized in that: include: Lifting airbag (4); A fixed bracket (2), comprising a fixed inner bracket (21) and a fixed outer bracket (22) fixedly connected to the fixed inner bracket (21); a first connecting plate (27) fixedly connected to the lifting airbag (4) is arranged on the fixed inner bracket (21), and a second connecting plate (28) fixedly connected to the lifting airbag (4) is arranged on the fixed outer bracket (22); The movable bracket (3) comprises a movable inner bracket (31) and a movable outer bracket (32) fixedly connected to the movable inner bracket (31); a third connecting plate (34) fixedly connected to the lifting airbag (4) is arranged on the movable inner bracket (31), and a fourth connecting plate (35) fixedly connected to the lifting airbag (4) is arranged on the movable outer bracket (32).

2. The air suspension lifting mechanism according to claim 1, characterized in that: A first bolt hole is provided on the first connecting plate (27), and a first bolt matching the first bolt hole is arranged in the first bolt hole; a second bolt hole corresponding to the first bolt hole is provided on the second connecting plate (28), and the first bolt passes through the first bolt hole and the second bolt hole to be connected to the lifting airbag (4).

3. The air suspension lifting mechanism according to claim 1, characterized in that: A first fixing plate (36) is provided on the movable outer bracket (32), and one end of the first fixing plate (36) away from the movable outer bracket (32) is detachably connected to the movable inner bracket (31).

4. The air suspension lifting mechanism according to claim 3, characterized in that: A limiting block (37) suitable for contacting the leaf spring is detachably arranged on the first fixing plate (36).

5. The air suspension lifting mechanism according to claim 1, characterized in that: It also includes a front bracket (1), the front bracket (1) including a main body (11) and a mounting bolt (12) mounted on the main body (11); the fixed bracket (2) is sleeved on the circumferential outer side of the mounting bolt (12), and the movable bracket (3) is rotatably sleeved on the circumferential outer side of the mounting bolt (12).

6. The air suspension lifting mechanism according to claim 5, characterized in that: A limiting rod (24) suitable for abutting against the main body (11) is arranged on the fixed bracket (2); two ends of the limiting rod (24) are detachably mounted on the fixed outer bracket (22) and the fixed inner bracket (21) respectively through connecting bolts (25).

7. The air suspension lifting mechanism according to claim 6, characterized in that: A plurality of connection holes (26) matching the connection bolts (25) are provided on the fixed outer bracket (22) and the fixed inner bracket (21).

8. The air suspension lifting mechanism according to claim 5, characterized in that: A positioning sleeve (23) is provided between the fixed bracket (2) and the mounting bolt (12), and a wear-resistant bushing (33) is provided between the movable bracket (3) and the fixed bracket (2).

Images