Lifting bridge lifting device

Abstract

The utility model relates to a lifting bridge lifting device, which belongs to the technical field of automobile lifting bridges and comprises a lifting bridge body mounted at the bottom of a frame. The installation supports are symmetrically connected to the lifting bridge body, and the installation supports are further connected with the vehicle frame; and the air bag assembly is arranged on the mounting bracket, and the air bag assembly is connected with the frame. During use, mounting spaces on the two sides of the frame are fully utilized, the problem that many parts are mounted in the middle of the frame is solved, and the difficulty in mounting and designing of a lifting bridge lifting device is overcome.

Description

Technical Field

[0001] The present application relates to the technical field of automobile lifting axles, and in particular to a lifting device for a lifting axle. Background Art

[0002] A car lifting axle refers to a vehicle axle that can be raised and lowered freely. After lifting, the axle tires can leave the ground, so it is also called a suspended axle. Usually, when the vehicle is fully loaded, the axle is lowered to increase the vehicle's load-bearing capacity; when it is unloaded, the lifting axle can be raised to reduce tire friction resistance and loss, thereby reducing fuel consumption and extending tire service life.

[0003] At present, the most widely used lifting device for lifting axles is the airbag lifting device, which usually includes two airbags, one large airbag is used to bear the weight of the axle, and the other small airbag is used to control the lifting of the axle. The inflation and deflation process of the airbag can be precisely adjusted by the control system to achieve smooth lifting and lowering of the axle.

[0004] The airbag lifting device is generally installed in the middle of the automobile frame, and a transfer case and other mechanisms are also installed in the middle of the frame. At this time, for some cars with a lowered center of gravity of the cargo box, the transfer case and other mechanisms can easily interfere with the installation of the airbag lifting device. Summary of the invention

[0005] The embodiment of the present application provides a lifting axle lifting device to solve the problem in the related art that the airbag lifting device is installed in the middle of the frame, which is easy to interfere with the installation of mechanisms such as the transfer case.

[0006] An embodiment of the present application provides a lifting device for a lifting axle, comprising: a lifting axle body, which is installed at the bottom of a vehicle frame; a mounting bracket, which is symmetrically connected to the lifting axle body and is also connected to the vehicle frame; an airbag assembly, which is arranged on the mounting bracket and is connected to the vehicle frame.

[0007] In some embodiments, the airbag assembly includes: a load-bearing airbag, whose upper end is set as a fixed end, and whose lower end is set as a movable end, and the lower end of the load-bearing airbag is connected to the lifting bridge body through the mounting bracket; a lifting airbag, which is located at the top of the load-bearing airbag, and the upper end of the lifting airbag is set as a movable end, and the lower end of the lifting airbag is set as a fixed end, the upper end of the lifting airbag is connected to a lifting plate, and the lower end of the lifting airbag is connected to the load-bearing airbag through the mounting bracket.

[0008] In some embodiments, the mounting bracket includes: an upper bracket, which includes a transverse plate and angle plates connected to both ends of the transverse plate, the lifting airbag is connected to the transverse plate, the bottom of the transverse plate is connected to the load-bearing airbag, and the angle plates at both ends are connected to the frame; a lower bracket, one end of which is fixedly connected to the lower end of the load-bearing airbag, and the other end is connected to the lifting bridge body.

[0009] In some embodiments, the load-bearing airbag and the lifting airbag are coaxially connected on the mounting bracket.

[0010] In some embodiments, the mounting bracket further includes a lifting reinforcement frame connected between the upper bracket and the lower bracket, wherein one end of the lifting reinforcement frame is connected to the bottom of the upper bracket, and the other end is connected to the bent pipe of the lifting bridge body.

[0011] In some embodiments, the lifting reinforcement frame includes: a lifting rod, which is symmetrically connected to the bottom of the upper bracket; a chain, which is respectively connected to the ends of the two lifting rods, and the chain is extended to the bottom of the lifting bridge body; a connecting plate, which is located at the bottom of the lifting bridge body and connected to the two chains.

[0012] In some embodiments, a support is further provided on the connecting plate, and the support has a groove, and the curved pipe of the lifting bridge body is connected in the groove.

[0013] In some embodiments, the bent pipe of the lifting bridge body is also connected to the leaf spring on the frame, and a connecting component is provided between the leaf spring and the lower bracket.

[0014] In some embodiments, the connecting assembly includes: a pressure plate, one end of which is located at the top of the leaf spring and the other end is fixedly connected to the lower bracket, the load-bearing airbag is located on the top of the pressure plate; a U-shaped clamp, whose opening is downward and passes through the pressure plate, the bent pipe is located in the middle of the U-shaped clamp, and the U-shaped clamp is connected to the leaf spring with at least two; a mounting plate, which is located at the bottom of the bent pipe, and the mounting plate is connected to the U-shaped clamp by a nut.

[0015] In some embodiments, a first limiter is provided on the frame, and the first limiter is used to limit the lifting distance of the lifting bridge body; a second limiter is provided on the installation, and the second limiter is used to limit the lowering distance of the lifting bridge body.

[0016] The beneficial effects of the technical solution provided by this application include:

[0017] The embodiment of the present application provides a lifting axle lifting device. Since the lifting axle body is installed at the bottom of the frame, in order to avoid interference with the transfer case and other mechanisms in the middle of the frame, mounting brackets are symmetrically connected on both sides of the lifting axle body, and an airbag assembly is connected to the mounting bracket. The airbag assembly increases the lifting power for the lifting of the lifting axle body. The mounting bracket is used to install the airbag assembly, which makes full use of the installation space on both sides of the frame, solves the problem of having many parts to be installed in the middle of the frame, and overcomes the installation design problem of the lifting axle lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the front view structure provided in an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the axial structure provided in an embodiment of the present application.

[0021] Reference numerals:

[0022] 1. Frame; 20. Bend pipe; 21. Wheel hub assembly; 22. Air chamber; 30. Cross plate; 31. Angle plate; 32. Lower bracket; 33. Lifting rod; 34. Chain; 35. Connecting plate; 40. Load-bearing airbag; 41. Lifting airbag; 410. Lifting plate; 5. Support; 50. Groove; 6. Leaf spring; 70. Pressure plate; 71. U-shaped clamp; 72. Mounting plate; 8. Limit block; 9. Limit seat. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] The embodiment of the present application provides a lifting axle lifting device, which can solve the problem that the airbag lifting device is installed in the middle of the frame, which is easy to interfere with the installation of mechanisms such as the transfer case.

[0025] See also Figure 1 to Figure 2As shown, the embodiment of the present application provides a lifting bridge lifting device, including a lifting bridge body, which is installed at the bottom of a vehicle frame 1;

[0026] A mounting bracket, the mounting bracket is symmetrically connected to the lifting bridge body, and the mounting bracket is also connected to the frame 1;

[0027] The airbag assembly is arranged on a mounting bracket and is connected to the vehicle frame 1 .

[0028] Therefore, the airbag assembly is connected to the mounting bracket, and the airbag assembly is also located on both sides of the bottom of the frame 1. At that time, the airbag assembly is connected to the frame 1. The use of the airbag assembly can effectively lift the lifting bridge body, and by making full use of the installation space on both sides of the frame 1, the interference between the airbag assembly and the transfer case at the bottom of the frame 1 is avoided. Under the action of the mounting bracket, the airbag assembly is easy to install and the structure is reliable.

[0029] In the present application, the lifting bridge body includes a curved pipe 20, a wheel hub assembly 21 and an air chamber 22, wherein the curved pipe 20 is arranged in a V shape and connected to the bottom of the frame 1, and the airbag assembly is connected to the curved pipe 20. The wheel hub assembly 21 is connected to both ends of the curved pipe 20, and the air chamber 22 is located on one side of the wheel hub assembly 21 and connected to the curved pipe 20; the main function is to provide braking torque for the car.

[0030] In the embodiment of the present application, the airbag assembly provided includes a load-bearing airbag 40, the upper end of the load-bearing airbag 40 is set as a fixed end, the lower end of the load-bearing airbag 40 is set as a movable end, and the lower end of the load-bearing airbag 40 is connected to the bent pipe 20 of the lifting bridge body through a mounting bracket, and the inflation and deflation air pipe of the load-bearing airbag 40 is located at the top thereof; the airbag assembly also includes a lifting airbag 41, the lifting airbag 41 is located at the top of the load-bearing airbag 40, and the upper end of the lifting airbag 41 is set as a movable end, the lower end of the lifting airbag 41 is set as a fixed end, the inflation and deflation air pipe of the lifting airbag 41 is located at the bottom thereof, and a lifting plate 410 is connected to the upper end of the lifting airbag 41, and the lower end of the lifting airbag 41 is connected to the load-bearing airbag 40 through a mounting bracket.

[0031] During use, the load-bearing airbag 40 and the lifting airbag 41 are installed on the same mounting bracket, and the load-bearing airbag 40 and the lifting airbag 41 are effectively connected between the frame 1 and the lifting bridge through the mounting bracket and the lifting plate 410. During the lifting process, the lifting airbag 41 is inflated, and the air pressure can be adjusted according to the required lifting height. The lifting airbag 41 pushes the lifting plate 410 upward, and the lifting plate 410 drives the mounting bracket to lift the lifting bridge body; at the same time, the load-bearing airbag 40 is quickly deflated, and when the lifting airbag 41 is lifted to the set pressure, the lifting process of the lifting bridge body stops. During the descent of the lifting bridge body, the lifting airbag is deflated, and the lifting bridge body begins to descend under the driving action of the load-bearing airbag 40. After the load-bearing airbag 40 reaches the set pressure value, it can ensure the normal load of the lifting bridge body.

[0032] In the present application, the mounting bracket includes: an upper bracket, the upper bracket includes a transverse plate 30 and angle plates 31 connected to both ends of the transverse plate 30, the lifting airbag 41 is connected to the transverse plate 30, the bottom of the transverse plate 30 is connected to the load-bearing airbag 40, and the angle plates 31 at both ends can be connected to the frame 1 by bolts, thereby effectively connecting the upper bracket to the frame 1, so that the mounting bracket as a whole can be installed on the frame 1;

[0033] The lower bracket 32 ​​has one end fixedly connected to the lower end of the load-bearing airbag 40 and the other end connected to the lifting bridge body.

[0034] During use, the connection between the load-bearing airbag 40 and the lifting airbag 41 is effectively achieved through the upper bracket and the lower bracket 32, and the load-bearing airbag 40 and the lifting airbag 41 between the frame 1 and the lifting bridge body can conveniently lift and lower the lifting bridge body during the inflation and deflation process. It is easy to use and has a simple installation structure.

[0035] In the present application, the load-bearing airbag 40 and the lifting airbag 41 are coaxially connected on the mounting bracket, so that the installation structure of the load-bearing airbag 40 and the lifting airbag 41 is compact, the force is balanced, and the installation space at the bottom of the frame 1 is saved.

[0036] In this application, in order to further improve the lifting stability of the lifting bridge body, the installation bracket also includes a lifting reinforcement frame connected between the upper bracket and the lower bracket 32, one end of the lifting reinforcement frame is connected to the bottom of the upper bracket, and the other end is connected to the bent pipe 20 of the lifting bridge body.

[0037] The lifting reinforcement frame includes: a lifting rod 33, a chain 34 and a connecting plate 35. The lifting rod 33 is symmetrically connected to the bottom of the upper bracket; the chain 34 is respectively connected to the ends of the two lifting rods 33, and the chain 34 is extended to the bottom of the lifting bridge body; the connecting plate 35 is located at the bottom of the lifting bridge body and is connected to the two chains 34. The connection method includes but is not limited to using bolts, connecting one end of the rod of the bolt to the chain 34, and a through hole is provided on the connecting plate 35. The rod of the bolt passes through the through hole, and the nut of the bolt is connected to the rod and is located at both ends of the through hole. The chain 34 and the connecting plate 35 are easy to disassemble and assemble, and the structure is reliable.

[0038] During use, the lifting airbag 41 is inflated, and the air pressure can be adjusted according to the required lifting height. The lifting airbag 41 pushes the lifting plate 410 upward, and the lifting plate 410 pulls the lifting rod 33, the chain 34 and the connecting plate 35 to lift the lifting bridge body, thereby improving the normal load-bearing stability of the lifting bridge body.

[0039] A support 5 is further provided on the connecting plate 35, and a groove 50 is provided on the support 5. The curved pipe 20 of the lifting bridge body is connected in the groove 50, so that the structure of the lifting bridge body on the connecting plate 35 is stable and reliable in use during the lifting and lowering process of the lifting bridge body.

[0040] In the present application, the bent pipe 20 of the lifting bridge body is connected to the leaf spring 6 on the frame 1. The leaf spring 6 has a high load-bearing capacity and stability. When used in combination with the lifting bridge body, the load-bearing mass of the entire vehicle can be increased when needed. This combination can give full play to the advantages of both and improve the performance of the vehicle.

[0041] A connecting assembly is provided between the leaf spring 6 and the lower bracket 32, and the connecting assembly includes a pressure plate 70, a U-shaped clamp 71 and a mounting plate 72. One end of the pressure plate 70 is located at the top of the leaf spring 6, and the other end is fixedly connected to the lower bracket 32. The load-bearing airbag 40 is located at the top of the pressure plate 70; the U-shaped clamp 71 opens downward and passes through the pressure plate 70, the curved pipe 20 is located in the middle of the U-shaped clamp 71, and at least two U-shaped clamps 71 are connected to the leaf spring 6, so that the connection between the pressure plate 70 and the leaf spring 6 is firm; the mounting plate 72 is located at the bottom of the curved pipe 20, and the mounting plate 72 is connected to the U-shaped clamp 71 by nuts.

[0042] Therefore, a suspension is formed by the pressure plate 70, the U-shaped clamp 71 and the mounting plate 72, which effectively connects the mounting bracket with the leaf spring 6, thereby realizing the connection between the lifting bridge body and the leaf spring 6. The mounting structure is simple and easy to assemble and disassemble.

[0043] In the present application, in order to ensure the lifting and lowering distance of the lifting bridge body, a first limit member is provided on the frame 1, and the first limit member is used to limit the lifting distance of the lifting bridge body. The first limit member includes a limit block 8, and the limit block 8 is arranged at the bottom of the frame 1. During the lifting process of the lifting bridge body, the limit block 8 contacts and limits the upper cover plate of the leaf spring 6; a second limit member is provided on the mounting bracket, and the second limit member is used to limit the lowering distance of the lifting bridge body. The second limit member includes a limit seat 9, and the limit seat 9 is connected to the top of the cross plate 30. A limit is left between the limit seat 9 and the lifting plate 410. During the lowering process of the lifting bridge body, the limit seat 9 contacts and limits the lifting plate 410.

[0044] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0045] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0046] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A lifting bridge lifting device, characterized in that: include: A lifting bridge body, which is mounted on the bottom of the vehicle frame (1); A mounting bracket, the mounting bracket being symmetrically connected to the lifting bridge body, and the mounting bracket is also connected to the vehicle frame (1); An airbag assembly is arranged on the mounting bracket, and the airbag assembly is connected to the vehicle frame (1).

2. A lifting bridge lifting device according to claim 1, characterized in that: The airbag assembly comprises: A load-bearing airbag (40), the upper end of which is arranged as a fixed end, and the lower end of which is arranged as a movable end, the lower end of the load-bearing airbag (40) being connected to the lifting bridge body via the mounting bracket; A lifting airbag (41) is located on the top of the load-bearing airbag (40), and the upper end of the lifting airbag (41) is set as a movable end, and the lower end of the lifting airbag (41) is set as a fixed end. The upper end of the lifting airbag (41) is connected to a lifting plate (410), and the lower end of the lifting airbag (41) is connected to the load-bearing airbag (40) through the mounting bracket.

3. A lifting bridge lifting device according to claim 2, characterized in that: The mounting bracket comprises: An upper bracket, comprising a transverse plate (30) and angle plates (31) connected to both ends of the transverse plate (30), the lifting airbag (41) being connected to the transverse plate (30), the bottom of the transverse plate (30) being connected to the bearing airbag (40), and the angle plates (31) at both ends being connected to the vehicle frame (1); A lower bracket (32) has one end fixedly connected to the lower end of the load-bearing airbag (40) and the other end connected to the lifting bridge body.

4. A lifting bridge lifting device according to claim 2, characterized in that: The bearing airbag (40) and the lifting airbag (41) are coaxially connected on the mounting bracket.

5. A lifting bridge lifting device according to claim 3, characterized in that: The mounting bracket also includes a lifting reinforcement frame connected between the upper bracket and the lower bracket (32), one end of the lifting reinforcement frame is connected to the bottom of the upper bracket, and the other end is connected to the curved pipe (20) of the lifting bridge body.

6. A lifting bridge lifting device according to claim 5, characterized in that: The lifting reinforcement frame comprises: A lifting rod (33) symmetrically connected to the bottom of the upper bracket; A chain (34) connected to the ends of the two lifting rods (33) respectively, and the chain (34) is extended to the bottom of the lifting bridge body; A connecting plate (35) is located at the bottom of the lifting bridge body and is connected to the two chains (34).

7. A lifting bridge lifting device according to claim 6, characterized in that: A support (5) is also provided on the connecting plate (35), and a groove (50) is provided on the support (5), and the curved pipe (20) of the lifting bridge body is connected in the groove (50).

8. A lifting bridge lifting device according to claim 3, characterized in that: The bent pipe (20) of the lifting bridge body is also connected to the leaf spring (6) on the frame (1), and a connecting component is provided between the leaf spring (6) and the lower bracket (32).

9. A lifting bridge lifting device according to claim 8, characterized in that: The connection component comprises: A pressure plate (70), one end of which is located on the top of the leaf spring (6), and the other end of which is fixedly connected to the lower bracket (32), and the bearing airbag (40) is located on the top of the pressure plate (70); A U-shaped clamp (71) with an opening facing downward and passing through the pressure plate (70), the curved pipe (20) being located in the middle of the U-shaped clamp (71), and the U-shaped clamp (71) being connected to at least two of the leaf springs (6); A mounting plate (72) is located at the bottom of the curved pipe (20), and the mounting plate (72) is connected to the U-shaped clamp (71) via a nut.

10. The lifting bridge lifting device according to claim 1, characterized in that: The vehicle frame (1) is provided with a first limiter, and the first limiter is used to limit the lifting distance of the lifting bridge body; The mounting bracket is provided with a second position-limiting member, and the second position-limiting member is used to limit the descending distance of the lifting bridge body.

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