Passenger car rear suspension longitudinal beam assembly

By adjusting the design of the components and mounting components, the support strength and stability of the rear suspension longitudinal beam assembly of the bus have been enhanced, solving the problems of poor load-bearing performance and weak anti-roll capability of traditional longitudinal beam assemblies, and improving the stability and safety of the vehicle.

CN223891066UActive Publication Date: 2026-02-10XIANGHE GANGLONG AUTO ACCESSORIES CO LTD
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Patent Information

Application Number
CN202520553959.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-10
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

Traditional bus rear suspension longitudinal beam assemblies have poor load-bearing capacity and cannot withstand large weights, affecting vehicle stability and safety. In addition, the suspension structure has weak anti-roll capability, affecting driving stability and comfort.

Method used

The design employs a combination of adjusting components, movable components, and mounting components. By adjusting the bidirectional screw, positioning insert, and positioning pull block, the overall support strength and stability of the longitudinal beam are increased. Movable sleeves and reinforcing supports enhance the rigidity of the longitudinal beam. The support and stability of the longitudinal beam are adjusted by the combination of moving wedges and mounting inserts.

Benefits of technology

It improves the support strength and stability of the rear suspension longitudinal beam assembly of the bus, enhances the vehicle's load-bearing capacity, and improves driving stability and comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a passenger car rear suspension longitudinal beam assembly which comprises a longitudinal beam assembly body, one end of the longitudinal beam assembly body is fixedly connected with an assembly part, the top of the assembly part is provided with an assembly suspension hole in a penetrating mode, and the two sides of the outer side wall of the longitudinal beam assembly body are fixedly connected with assembly supporting parts. And an assembling suspension supporting hole is formed in the top of the assembling supporting piece in a penetrating mode. According to the utility model, by pulling the movable wedge block, the movable wedge block drives the movable sliding block to slide in the movable groove, so that the movable wedge block is adjusted to a proper distance as required, and then the mounting pull plate is loosened, so that the mounting spring applies a restoring force to the mounting insertion strip on the mounting pull plate; when the longitudinal beam assembly is used, the mounting insertion strip is inserted into one mounting insertion opening for limiting, and then the movable wedge block is in contact with an external transverse assembly, so that the stability of the two sides of the longitudinal beam assembly body is enhanced, the rigid strength of the longitudinal beam assembly body is enhanced, and the using effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of bus technology, and in particular to a rear suspension longitudinal beam assembly for buses. Background Technology

[0002] A passenger bus is a commercial vehicle that carries nine or more people and generally has a square cabin. It is used to transport passengers and their personal luggage. This type of vehicle is mainly used for public transportation and group transportation. The main function of the rear suspension longitudinal beam assembly of the passenger bus is to support the vehicle body, absorb collision energy, and protect passenger safety.

[0003] Traditional rear suspension longitudinal beam assemblies are formed from sheet metal. Suspension components extending in different directions are set on both sides of the rear suspension longitudinal beam. The load-bearing capacity of the rear suspension longitudinal beam assembly is relatively poor and cannot withstand large weights. This may affect the stability and safety of the vehicle. At the same time, the anti-roll capability of the suspension structure is weak, and it is prone to roll during cornering or rapid acceleration, affecting driving stability and comfort, thereby reducing the performance. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rear suspension longitudinal beam assembly for passenger vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rear suspension longitudinal beam assembly for a passenger vehicle, comprising a longitudinal beam assembly body, an assembly component fixedly connected to one end of the longitudinal beam assembly body, an assembly suspension hole penetrating through the top of the assembly component, assembly supports fixedly connected to both sides of the outer wall of the longitudinal beam assembly body, an assembly suspension support hole penetrating through the top of the assembly supports, and an adjustment component provided between the two sides of the inner wall of the longitudinal beam assembly body;

[0006] Multiple machining slots are provided on both sides of the inner wall of the longitudinal beam assembly. Two guide support rods are fixedly connected between the two sides of the inner wall of the longitudinal beam assembly. Two symmetrical reinforcing members are provided inside the longitudinal beam assembly. Multiple machining blocks are fixedly connected to the side walls of the reinforcing members. Movable grooves are provided on both sides of the outer wall of the longitudinal beam assembly. Multiple installation slots are provided on both sides of the outer wall of the longitudinal beam assembly. Two movable sliders are slidably connected inside the movable grooves. Movable wedges are fixedly connected to the side walls of the movable sliders. Installation components are connected to the surface of the movable wedges.

[0007] As a further description of the above technical solution:

[0008] The adjustment assembly includes a bidirectional adjusting screw rotatably connected between the two sides of the inner wall of the longitudinal beam assembly. One end of the bidirectional adjusting screw passes through the longitudinal beam assembly and is fixedly connected to an adjusting block. Multiple positioning holes are provided on the surface of the longitudinal beam assembly. A positioning insert is provided through the surface of the adjusting block, and a positioning pull block is fixedly connected to one end of the positioning insert.

[0009] As a further description of the above technical solution:

[0010] The other end of the positioning insert is movably inserted into one of the positioning holes. A positioning spring is movably sleeved on the outer wall of the positioning insert. The two ends of the positioning spring are fixedly connected to the side wall of the positioning pull block and the side wall of the adjusting rotating block, respectively. Two symmetrical movable components are connected to the outer wall of the adjusting bidirectional screw.

[0011] As a further description of the above technical solution:

[0012] The movable component includes a movable sleeve block threaded to the outer wall of the adjusting bidirectional screw. Movable support sleeves are fixedly connected to both sides of the outer wall of the movable sleeve block, and the movable support sleeves are movably sleeved to the outer wall of their corresponding guide support rods.

[0013] As a further description of the above technical solution:

[0014] The bottom of the movable support sleeve is rotatably connected to a movable support plate via a movable pivot, and the top of the movable support plate is rotatably connected to a reinforcing pivot. The end of the reinforcing pivot is rotatably connected to a corresponding reinforcing support member.

[0015] As a further description of the above technical solution:

[0016] The mounting assembly includes a mounting groove formed on the surface of the movable wedge, a mounting slider slidably connected inside the mounting groove, a mounting spring fixedly connected to the inner wall of the mounting groove, and the end of the mounting spring fixedly connected to the corresponding mounting slider.

[0017] As a further description of the above technical solution:

[0018] A mounting plate is fixedly connected to the surface of the mounting slider, and a mounting strip is fixedly connected to the side wall of the mounting plate. The end of the mounting strip is movably inserted into one of the mounting ports.

[0019] This utility model has the following beneficial effects:

[0020] The adjusting assembly allows the adjusting bidirectional screw, adjusting block, positioning insert, positioning pull block, and positioning spring to work together. Pulling or releasing the positioning pull block causes it to engage or disengage the positioning insert with one of the positioning holes. The movable assembly allows the movable sleeve, movable support sleeve, guide support rod, movable shaft, movable support plate, reinforcing support, machining insert, and reinforcing shaft to work together. Rotating the adjusting block rotates the adjusting bidirectional screw, causing the two movable sleeves to move away from each other along the direction of the adjusting bidirectional screw. The movable support sleeve on the movable sleeve engages with its corresponding guide support rod and guides it. The movable support sleeve then moves the movable support plate on the movable shaft, which in turn moves the reinforcing support on the reinforcing shaft. The movement causes the two reinforcing supports to move to both sides. Then, multiple machined blocks on the reinforcing supports are inserted into the machined slots on the inner wall of the longitudinal beam assembly, thereby strengthening the overall support strength of the longitudinal beam assembly. The mounting components, including the mounting slider, mounting spring, mounting pull plate, and mounting strip, can be used to move the moving wedge, causing it to slide the moving slider inside the moving groove. The moving wedge can be adjusted to a suitable distance as needed. Then, the mounting pull plate is released, allowing the mounting spring to provide a restoring force to the mounting strip on the mounting pull plate, causing the mounting strip to be inserted into one of the mounting slots and limited. The moving wedge is then brought into contact with the external transverse assembly, thereby strengthening the stability of both sides of the longitudinal beam assembly and enhancing its rigidity, thus improving its performance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a rear suspension longitudinal beam assembly for a passenger vehicle proposed in this utility model;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 A schematic diagram of the bottom structure of the longitudinal beam assembly of the rear suspension longitudinal beam assembly of a bus proposed in this utility model;

[0024] Figure 4 for Figure 1 Enlarged structural diagram at point B.

[0025] Legend:

[0026] 1. Longitudinal beam assembly; 2. Assembly parts; 3. Suspension mounting holes; 4. Assembly supports; 5. Suspension mounting holes; 6. Adjusting double-acting screw; 7. Adjusting rotating block; 8. Positioning insert; 9. Positioning pull block; 10. Positioning spring; 11. Movable sleeve; 12. Movable support sleeve; 13. Guide support rod; 14. Movable rotating shaft; 15. Movable support plate; 16. Reinforcing support; 17. Machining insert; 18. Reinforcing rotating shaft; 19. Moving slider; 20. Moving wedge; 21. Installing slider; 22. Installing spring; 23. Installing pull plate; 24. Installing insert. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figure 1-4 This utility model provides a rear suspension longitudinal beam assembly for a passenger vehicle, including a longitudinal beam assembly body 1. One end of the longitudinal beam assembly body 1 is fixedly connected to an assembly part 2. The top of the assembly part 2 has a through-hole 3 for mounting a suspension. Assembly supports 4 are fixedly connected to both sides of the outer wall of the longitudinal beam assembly body 1. The top of each assembly support 4 has a through-hole 5 for mounting a suspension support. An adjustment assembly is provided between the two sides of the inner wall of the longitudinal beam assembly body 1. This adjustment assembly adjusts and strengthens the longitudinal beam assembly body 1. The adjustment assembly includes a bidirectional adjusting screw 6 rotatably connected between the two sides of the inner wall of the longitudinal beam assembly body 1. An adjusting block 7 is fixedly connected to one end of a screw rod 6 through the longitudinal beam assembly 1. Multiple positioning holes are provided on the surface of the longitudinal beam assembly 1. A positioning strip 8 is provided through the surface of the adjusting block 7. A positioning pull block 9 is fixedly connected to one end of the positioning strip 8. The other end of the positioning strip 8 is movably inserted into one of the positioning holes. A positioning spring 10 is movably sleeved on the outer wall of the positioning strip 8. The two ends of the positioning spring 10 are fixedly connected to the side wall of the positioning pull block 9 and the side wall of the adjusting block 7, respectively. The positioning effect of adjusting the adjusting block 7 is achieved by movably inserting the positioning strip 8 into one of the positioning holes.

[0029] The outer wall of the adjusting double-acting screw 6 is connected to two symmetrical movable components. The movable components include a movable sleeve 11 threadedly connected to the outer wall of the adjusting double-acting screw 6. Movable supports 12 are fixedly connected to both sides of the outer wall of the movable sleeve 11. The movable supports 12 are movably sleeved to the outer wall of their corresponding guide support rods 13. The bottom of the movable supports 12 is rotatably connected to a movable support plate 15 via a movable pivot 14. The top of the movable support plate 15 is rotatably connected to a reinforcing pivot 18. The end of the reinforcing pivot 18 is rotatably connected to its corresponding reinforcing support 16. The reinforcing support 16 strengthens the overall strength of the longitudinal beam 1.

[0030] Multiple machining slots are provided on both sides of the inner wall of the longitudinal beam assembly 1. Two guide support rods 13 are fixedly connected between the two sides of the inner wall of the longitudinal beam assembly 1. Two symmetrical reinforcing supports 16 are provided inside the longitudinal beam assembly 1. Multiple machining blocks 17 are fixedly connected to the side walls of the reinforcing supports 16. Movable grooves are provided on both sides of the outer wall of the longitudinal beam assembly 1. Multiple mounting slots are provided on both sides of the outer wall of the longitudinal beam assembly 1. Two movable sliders 19 are slidably connected inside the movable grooves. Movable wedges 20 are fixedly connected to the side walls of the movable sliders 19. The surfaces of the movable wedges 20 are connected to... The device is equipped with an installation assembly, which includes an installation groove formed on the surface of the movable wedge 20. An installation slider 21 is slidably connected inside the installation groove. An installation spring 22 is fixedly connected to the inner wall of the installation groove. The end of the installation spring 22 is fixedly connected to the corresponding installation slider 21. An installation pull plate 23 is fixedly connected to the surface of the installation slider 21. An installation insert 24 is fixedly connected to the side wall of the installation pull plate 23. The end of the installation insert 24 is movably inserted into one of the installation sockets. By movably inserting the installation insert 24 into one of the installation sockets, the movable wedge 20 is limited after adjustment.

[0031] Working principle: In use, first pull the positioning block 9, so that the positioning block 9 drives the positioning insert 8 and the positioning spring 10 to move along the direction on the adjusting block 7. Then, the positioning insert 8 separates from one of the positioning holes. Then, rotate the adjusting block 7, so that the adjusting block 7 drives the adjusting double screw 6 to rotate. Then, the two movable sleeves 11 move away from each other along the direction on the adjusting double screw 6. Because the movable sleeve 11 is equipped with a movable support sleeve 12, the movable support sleeve 12 is movably sleeved and guided by its corresponding guide support rod 13. Then, the movable support sleeve 12 also drives the movable support plate 15 on the movable rotating shaft 14 to move. Then, the movable support plate 15 drives the reinforcing support member 16 on the reinforcing rotating shaft 18 to move, so that the two reinforcing support members 16 move to both sides. Then, the multiple processed inserts 17 on the reinforcing support member 16 are inserted and supported by the processed inserts on the inner wall of the longitudinal beam body 1, ensuring the strength of the reinforcing support.

[0032] Then release the positioning pull block 9, so that the positioning spring 10 gives the positioning insert 8 a restoring force, so that the positioning insert 8 is inserted into one of the positioning holes, thereby limiting the adjustment of the adjusting rotating block 7, reducing the rotation of the adjusting rotating block 7, and ensuring the limit after adjustment.

[0033] Pulling the mounting plate 23 causes the mounting slider 21 and mounting spring 22 to slide inside the mounting groove. Then, the mounting insert 24 on the mounting plate 23 separates from one of the mounting sockets. Next, pulling the moving wedge 20 causes the moving wedge 20 to slide inside the moving groove, allowing the moving wedge 20 to be adjusted to a suitable distance as needed. Then, releasing the mounting plate 23 causes the mounting spring 22 to provide a restoring force to the mounting slider 21, causing the mounting slider 21 to engage and limit the mounting insert 24 on the mounting plate 23 with one of the mounting sockets. Then, the moving wedge 20 contacts the external transverse assembly, thereby stabilizing the stability of both sides of the longitudinal beam assembly 1, thus strengthening the rigidity of the longitudinal beam assembly 1 itself, ensuring stability, and preventing tipping.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rear suspension longitudinal beam assembly for a passenger vehicle, comprising the longitudinal beam assembly body (1), characterized in that: One end of the longitudinal beam assembly (1) is fixedly connected to an assembly part (2), the top of the assembly part (2) is provided with a mounting suspension hole (3), both sides of the outer wall of the longitudinal beam assembly (1) are fixedly connected to assembly supports (4), the top of the assembly supports (4) is provided with a mounting suspension support hole (5), and an adjustment component is provided between the two sides of the inner wall of the longitudinal beam assembly (1). Multiple processing slots are provided on both sides of the inner wall of the longitudinal beam assembly (1). Two guide support rods (13) are fixedly connected between the two sides of the inner wall of the longitudinal beam assembly (1). Two symmetrical reinforcing members (16) are provided inside the longitudinal beam assembly (1). Multiple processing blocks (17) are fixedly connected to the side wall of the reinforcing member (16). Movable grooves are provided on both sides of the outer wall of the longitudinal beam assembly (1). Multiple installation slots are provided on both sides of the outer wall of the longitudinal beam assembly (1). Two movable sliders (19) are slidably connected inside the movable groove. Movable wedges (20) are fixedly connected to the side wall of the movable sliders (19). Installation components are connected to the surface of the movable wedges (20).

2. The rear suspension longitudinal beam assembly for a passenger vehicle according to claim 1, characterized in that: The adjustment assembly includes a bidirectional adjusting screw (6) rotatably connected between the two sides of the inner wall of the longitudinal beam assembly (1). One end of the bidirectional adjusting screw (6) passes through the longitudinal beam assembly (1) and is fixedly connected to an adjusting rotating block (7). Multiple positioning holes are provided on the surface of the longitudinal beam assembly (1). A positioning insert (8) is provided through the surface of the adjusting rotating block (7). One end of the positioning insert (8) is fixedly connected to a positioning pull block (9).

3. The rear suspension longitudinal beam assembly for a passenger vehicle according to claim 2, characterized in that: The other end of the positioning insert (8) is movably inserted into one of the positioning holes. A positioning spring (10) is movably sleeved on the outer wall of the positioning insert (8). The two ends of the positioning spring (10) are fixedly connected to the side wall of the positioning pull block (9) and the side wall of the adjusting rotating block (7), respectively. Two relatively symmetrical movable components are connected to the outer wall of the adjusting bidirectional screw (6).

4. The rear suspension longitudinal beam assembly for a passenger vehicle according to claim 3, characterized in that: The movable component includes a movable sleeve (11) threaded to the outer wall of the adjusting bidirectional screw (6). Movable supports (12) are fixedly connected to both sides of the outer wall of the movable sleeve (11). The movable supports (12) are movably sleeved to the outer wall of their corresponding guide support rods (13).

5. The rear suspension longitudinal beam assembly for a passenger vehicle according to claim 4, characterized in that: The bottom of the movable support sleeve (12) is rotatably connected to a movable support plate (15) via a movable pivot (14), and the top of the movable support plate (15) is rotatably connected to a reinforcing pivot (18). The end of the reinforcing pivot (18) is rotatably connected to its corresponding reinforcing support (16).

6. The rear suspension longitudinal beam assembly for a passenger vehicle according to claim 1, characterized in that: The mounting assembly includes a mounting groove formed on the surface of the movable wedge (20), a mounting slider (21) is slidably connected inside the mounting groove, a mounting spring (22) is fixedly connected to the inner wall of the mounting groove, and the end of the mounting spring (22) is fixedly connected to the mounting slider (21) corresponding to it.

7. A rear suspension longitudinal beam assembly for a passenger vehicle according to claim 6, characterized in that: The mounting slider (21) is fixedly connected to a mounting pull plate (23), and the mounting pull plate (23) is fixedly connected to a mounting insert (24) on its side wall. The end of the mounting insert (24) is movably inserted into one of the mounting ports.