Connecting rod assembly for plate spring, frame assembly and vehicle

By setting a slider on the column to connect the leaf spring, and using the connectors to transmit the displacement amount on different sides, the deformation problem caused by uneven force on the leaf spring is solved, and the performance of the leaf spring and the reliability of the whole vehicle are improved.

CN120245649APending Publication Date: 2025-07-04BEIJING CAVAN NEW ENERGY AUTOMOTIVE CO LTD
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Patent Information

Application Number
CN202510518045.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

In the prior art, when a vehicle is driving on a rugged road section, uneven stress on both sides of the leaf spring causes S deformation, affecting the service performance and life, unable to effectively absorb vibration, and affecting the performance of the entire vehicle.

Method used

A slider is provided on the column, and is connected to the leaf spring through a connecting member. The slider slides or is slid on the column to limit the deformation of the leaf spring, and the displacement amount on different sides is transmitted by the connecting member to avoid deformation of the leaf spring.

Benefits of technology

Through the design of the slider, the leaf spring deformation is avoided, the service performance and life are improved, and the reliability and performance of the entire vehicle are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a connecting rod assembly for a plate spring, a frame assembly and a vehicle, according to the embodiment of the invention, the connecting rod assembly for the plate spring comprises a stand column, a sliding piece and a connecting piece, the stand column is connected to an axle; the sliding piece is slidably arranged on the stand column; one end of each connecting piece is rotationally connected to the sliding piece, the other end of each connecting piece is rotationally connected to the plate spring, and the plate spring drives the sliding piece to slide on the stand column through the connecting pieces in the deformation process. The stand column is connected to the plate spring, the sliding piece is arranged on the outer side of the stand column, and the connecting pieces connected with the plate spring are arranged on the two sides of the sliding piece, so that when the plate spring jumps, the jumping displacements on the two sides of the plate spring are different, the displacement phasors transmitted to the sliding piece through the connecting pieces are different, and the sliding piece is limited to the stand column; therefore, deformation of the plate spring is avoided, using performance is improved, service life is prolonged, and reliability of the whole vehicle is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of leaf springs, and more particularly to a connecting rod assembly for a leaf spring, a vehicle frame assembly and a vehicle. Background Art

[0002] In the prior art, when a vehicle passes through a rough road section, the wheels will bounce in the vertical direction. In order to reduce the impact of the vertical bounce on the whole vehicle, a leaf spring is provided between the wheels and the vehicle frame. The leaf spring can absorb vibration and reduce the impact of the bounce on the vehicle performance. However, in actual use, when the vehicle brakes, the two sides of the leaf spring cannot be evenly stressed, resulting in an S-shaped deformation on the leaf spring, thereby affecting the use performance of the leaf spring, making the vibration not be well absorbed and buffered, and further affecting the performance of the whole vehicle. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the present invention is to provide a connecting rod assembly for a leaf spring. By providing a sliding member on the column and connecting it to the leaf spring through a transmission member, when the bounces on both sides of the leaf spring are the same, the sliding member slides along the column, and when the bounces on both sides are different, the sliding member is clamped on the column, so as to avoid deformation of the leaf spring, make the leaf spring have higher use performance and service life, and thus improve the performance of the whole vehicle.

[0004] Another object of the present invention is to provide a vehicle frame assembly, and the vehicle frame assembly is provided with the connecting rod assembly as described above.

[0005] Still another object of the present invention is to provide a vehicle, and the vehicle is provided with the vehicle frame assembly as described above.

[0006] The connecting rod assembly for a leaf spring according to an embodiment of the present invention includes: a column, a sliding member and a connecting member. The column is connected to the axle; the sliding member is slidably arranged on the column; there are multiple connecting members, one end of each connecting member is rotatably connected to the sliding member, and the other end of each connecting member is rotatably connected to the leaf spring. During the deformation process of the leaf spring, the sliding member is driven to slide on the column through the connecting member.

[0007] The connecting rod assembly for a leaf spring according to an embodiment of the present invention is connected to the leaf spring by using a column, and a sliding member is provided outside the column. Since connecting members for connecting with the leaf spring are provided on both sides of the sliding member, when the leaf spring bounces, the bounce displacements on both sides of the leaf spring are different, so that the displacement vectors transmitted to the sliding member through the connecting members are different, restricting the sliding member on the column, thereby avoiding deformation of the leaf spring, improving the use performance and service life, and further improving the reliability of the whole vehicle.

[0008] In some embodiments, each of the connecting members is inclined to be connected.

[0009] In some embodiments, by arranging the connecting member obliquely, the connecting member can better transmit the deformation displacement and transmit the displacement to the same sliding member, so that the sliding member can, during use, comprehensively consider the displacement conditions of the connecting members on both sides and slide outside the column when the bouncing conditions on both sides of the leaf spring are the same, and be clamped outside the column when the bouncing conditions on both sides of the leaf spring are different, thereby avoiding abnormal deformation and other situations of the leaf spring during use. In some embodiments, the plurality of the connecting members at least include: a first connecting member and a second connecting member. One end of the first connecting member is connected to the sliding member, and the other end of the first connecting member is connected to the leaf spring; one end of the second connecting member is connected to the sliding member, and the other end of the second connecting member is connected to the leaf spring. The second connecting member and the first connecting member are oppositely arranged on both sides of the sliding member.

[0010] In some embodiments, it is possible to ensure that the bouncing on both sides of the leaf spring can be transmitted to the sliding member for comprehensive processing. When the bouncing on both sides is the same, the sliding member can be driven to slide, and when the bouncing on both sides is different, the sliding member is adapted to be driven to rotate to clamp the sliding member on the column, so as to reduce or even avoid abnormal bouncing of the leaf spring, enabling the leaf spring to be used as designed and improving the use reliability.

[0011] In some embodiments, the sliding member includes: a slider, the slider is sleeved on the column, and both the first connecting member and the second connecting member are connected to the slider.

[0012] In some embodiments, since the first connecting member and the second connecting member are adapted to be connected to the same slider, the slider can comprehensively process the bouncing on both sides of the leaf spring. When the bouncing on both sides is the same, the slider can slide in the extending direction of the column, and when the bouncing on both sides is different, the slider will have a tendency to flip, so that the slider can be clamped on the column, thereby avoiding different bouncing of the leaf springs on both sides and improving the overall vehicle performance.

[0013] In some embodiments, the sliding member further includes: a sliding limiting member, the sliding limiting member is connected to the top side of the slider, and the sliding limiting member is slidably arranged outside the column.

[0014] In some embodiments, during the construction of the sliding member, a sliding limiting member is also adapted to be constructed and connected to the slider, so that during use, the sliding member is adapted to drive the sliding limiting member to slide along the column, enabling the leaf spring to be used as designed. During use, the sliding limiting member is adapted to limit and guide the sliding setting of the slider, so that the slider can slide outside the column as required as designed.

[0015] In some embodiments, it further includes: a rotating member. There are multiple rotating members, and at least two of the rotating members are respectively connected to two ends of the connecting member. One of the rotating members is rotatably connected to the slider, and the other rotating member is connected to the leaf spring.

[0016] In some embodiments, during the construction of the link assembly, since the first connecting member and the second connecting member are adapted to move based on the bounce of the leaf spring, so as to be adapted to drive the connecting member to move through the rotating member during the bounce, and then be adapted to be transmitted to the sliding member to drive the sliding member to slide or be clamped as designed, so that the link assembly can be arranged to avoid excessive bounce of the leaf spring.

[0017] In some embodiments, the column extends in the vertical direction, the sliding limit member is sleeved outside the column, and the sliding limit member moves relative to the column.

[0018] In some embodiments, the column is vertically extended along the connection position, so that when the leaf spring transmits the bounce at both ends to the sliding member, the influence of the extending direction of the column on the sliding of the sliding member can be eliminated, so that the link assembly can be used as designed, thereby improving the performance of the whole vehicle.

[0019] In some embodiments, the sliding limit member is a sliding bearing.

[0020] In some embodiments, by using a sliding bearing as the sliding limit member, the sliding member can not only comprehensively consider the bounce conditions on both sides of the leaf spring as designed, but also slide well outside the column, so that the link assembly can reduce or even prevent the leaf spring from bouncing as designed, and further improve the performance of the whole vehicle.

[0021] The vehicle frame assembly according to an embodiment of the present invention includes: the link assembly as described above.

[0022] In the vehicle frame assembly according to an embodiment of the present invention, since the link assembly as shown above is provided in the vehicle frame assembly, the column is connected to the leaf spring, and a sliding member is provided outside the column. Since connecting members for connecting with the leaf spring are provided on both sides of the sliding member, when the leaf spring bounces, the bounce displacements on both sides of the leaf spring are different, so that the displacement vectors transmitted to the sliding member through the connecting members are different, restricting the sliding member on the column, thereby avoiding deformation of the leaf spring, improving the service performance and service life, and further enhancing the reliability of the whole vehicle.

[0023] The vehicle according to an embodiment of the present invention includes: the vehicle frame assembly as described above.

[0024] A vehicle according to an embodiment of the present invention is provided with a frame assembly as shown above inside the vehicle. Since connecting members for connecting with leaf springs are provided on both sides of the sliding member, when the leaf springs bounce, the bouncing displacements on both sides of the leaf springs are different, so that the displacement vectors transmitted to the sliding member through the connecting members are different, restricting the sliding member on the column, thereby preventing the leaf springs from deforming, improving the service performance and service life, and further enhancing the performance of the whole vehicle.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0027] Figure 1 is a schematic structural diagram of the prior art of a leaf spring according to an embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of the existing problems of a leaf spring according to an embodiment of the present invention;

[0029] Figure 3 is a schematic structural diagram of a connecting rod assembly according to an embodiment of the present invention;

[0030] REFERENCE SIGNS:

[0031] connecting rod assembly 10, leaf spring 11, axle 12,

[0032] column 100,

[0033] sliding member 200, slider 210, sliding limit member 220,

[0034] connecting member 300, first connecting member 310, second connecting member 320,

[0035] rotating member 400. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention will be described in detail below.

[0037] Reference will be made below to Figures 1 - 3 Describe a connecting rod assembly 10 for a leaf spring 11 according to an embodiment of the present invention, including: a column 100, a sliding member 200, and a connecting member 300.

[0038] Specifically, the column 100 is connected to the axle 12; the sliding member 200 is slidably arranged on the column 100; the connecting member 300 is rotatably connected to the sliding member 200, and the other end of the connecting member 300 is rotatably connected to the leaf spring 11. During the deformation process of the leaf spring 11, the sliding member 200 is driven to slide on the column 100 through the connecting member 300.

[0039] It should be noted that during the use of the leaf spring 11, it is suitable to be connected to the axle 12 through the link assembly 10. During the use of the leaf spring 11, it is suitable to undergo an S-shaped deformation by itself, that is, the front side of the leaf spring 11 bulges downward and the rear side of the leaf spring 11 is concavely flat upward, so that the leaf spring 11 can absorb and decompose the deceleration transmission. When the leaf spring 11 undergoes an S-shaped deformation, it will affect the service performance of the leaf spring 11, and further affect the use reliability of the vehicle.

[0040] In this application, by providing the link assembly 10 on the leaf spring 11, during the normal use of the leaf spring 11, when the leaf spring 11 undergoes planar extension, it is suitable to be transmitted to the sliding member 200 through the connecting member 300 to drive the sliding member 200 to slide along the outside of the column 100. When an S-shaped deformation occurs, the motion phases of the connecting members 300 on both sides of the sliding member 200 are different, so that the sliding member 200 cannot slide on the outside of the column 100, thereby avoiding situations such as S-shaped deformation from affecting the service performance and service life of the leaf spring 11, and further improving the use reliability of the vehicle provided with the link assembly 10 as shown above to avoid the vehicle from jolting during driving.

[0041] According to the link assembly 10 for the leaf spring 11 in an embodiment of the present invention, the column 100 is connected to the leaf spring 11, and a sliding member 200 is provided outside the column 100. Since connecting members 300 for connecting to the leaf spring 11 are provided on both sides of the sliding member 200, when the leaf spring 11 jolts, the jolting displacements on both sides of the leaf spring 11 are different, so that the displacement vectors transmitted to the sliding member 200 through the connecting members 300 are different, restricting the sliding member 200 on the column 100, thereby avoiding deformation of the leaf spring 11, improving the service performance and service life, and further improving the reliability of the whole vehicle.

[0042] In some embodiments, each connecting member 300 is inclined. In this way, by inclining the connecting member 300, the connecting member 300 can better transmit the deformation displacement and transmit the displacement to the same sliding member 200, so that the sliding member 200 can, during use, comprehensively consider the displacement conditions of the connecting members 300 on both sides. When the jolting conditions on both sides of the leaf spring 11 are the same, the sliding member 200 slides on the outside of the column 100, and when the jolting conditions on both sides of the leaf spring 11 are different, the sliding member 200 is clamped on the outside of the column 100, thereby avoiding abnormal deformation and other situations of the leaf spring 11 during use.

[0043] In some embodiments, the connecting member 300 includes: a first connecting member 310 and a second connecting member 320. One end of the first connecting member 310 is connected to the sliding member 200, and the other end of the first connecting member 310 is connected to the leaf spring 11; one end of the second connecting member 320 is connected to the sliding member 200, and the other end of the second connecting member 320 is connected to the leaf spring 11. The second connecting member 320 and the first connecting member 310 are oppositely arranged on both sides of the sliding member 200. That is to say, during the use of the connecting member 300, it is adapted to include the first connecting member 310 and the second connecting member 320. The first connecting member 310 and the second connecting member 320 are respectively connected to both sides of the sliding member 200 and are spaced apart and connected to the leaf spring 11. So that the bounce in front of the leaf spring 11 during use is transmitted through the first connecting member 310, and the bounce behind the leaf spring 11 is adapted to be transmitted through the second connecting member 320. In this way, it can be ensured that the bounces on both sides of the leaf spring 11 can be transmitted to the sliding member 200 for comprehensive processing. When the bounces on both sides are the same, the sliding member 200 can be driven to slide, and when the bounces on both sides are different, it is adapted to drive the sliding member 200 to rotate to clamp the sliding member 200 on the column 100, so as to reduce or even avoid abnormal bouncing of the leaf spring 11, so that the leaf spring 11 can be used according to the design and the use reliability is improved.

[0044] In some embodiments, the sliding member 200 includes: a slider 210. The slider 210 is sleeved on the column 100, and both the first connecting member 310 and the second connecting member 320 are connected to the slider 210. It can be understood that in the construction of the sliding member 200, it is adapted to include the slider 210. Since the first connecting member 310 and the second connecting member 320 are adapted to be connected to the slider 210, the bounces on both sides of the leaf spring 11 are adapted to be transmitted through the first connecting member 310 and the second connecting member 320. And since the first connecting member 310 and the second connecting member 320 are adapted to be connected to the same slider 210, the slider 210 is adapted to synthesize the bounces on both sides of the leaf spring 11. When the bounces on both sides are the same, the slider 210 can slide in the extending direction of the column 100, and when the bounces on both sides are different, it will drive the slider 210 to have a tendency to flip, so that the slider 210 can be clamped on the column 100, thereby avoiding different bounces of the leaf springs 11 on both sides, and further improving the overall performance of the vehicle.

[0045] In some embodiments, the sliding member 200 further includes a sliding limiting member 220. The sliding limiting member 220 is connected to the top side of the sliding block 210, and the sliding limiting member 220 is slidably disposed on the outside of the upright column 100. In this way, during the construction of the sliding member 200, it is also suitable to construct the sliding limiting member 220 to connect the sliding limiting member 220 to the sliding block 210, so that during the use of the sliding member 200, it is suitable to drive the sliding limiting member 220 to slide along the upright column 100, so that the leaf spring 11 can be used as designed. During the use process, the sliding limiting member 220 is suitable for limiting and guiding the sliding setting of the sliding block 210, so that the sliding block 210 can slide as required on the outside of the upright column 100 as designed.

[0046] In some embodiments, the link assembly 10 further includes a rotating member 400. There are multiple rotating members 400, and at least two rotating members 400 are respectively connected to both ends of the connecting member 300. One of the rotating members 400 is rotatably connected to the sliding block 210, and the other rotating member 400 is connected to the leaf spring 11. It can be understood that during the construction of the link assembly 10, since the first connecting member 310 and the second connecting member 320 are suitable for moving based on the bounce of the leaf spring 11, and during the bouncing process, it is suitable to drive the connecting member to move through the rotating member 400, and then it is suitable to be transmitted to the sliding member 200 to drive the sliding member 200 to slide or be clamped as designed, so that the link assembly 10 can be arranged to avoid excessive bouncing of the leaf spring 11.

[0047] In some embodiments, the upright column 100 extends in the vertical direction. The sliding limiting member 220 is sleeved on the outside of the upright column 100, and the sliding limiting member 220 moves relative to the upright column 100. It can be understood that the upright column 100 extends vertically along the connection position, so that when the leaf spring 11 transmits the bounce at both ends to the sliding member 200, the influence of the extension direction of the upright column 100 on the sliding use of the sliding member 200 can be eliminated, so that the link assembly 10 can be used as designed, thereby improving the overall vehicle performance.

[0048] In some embodiments, the sliding limiting member 220 is a sliding bearing. In this way, by making the sliding limiting member 220 a sliding bearing, the sliding member 200 can not only comprehensively consider the bounce conditions on both sides of the leaf spring 11 as designed, but also slide well on the outside of the upright column 100, so that the link assembly 10 can reduce or even prevent the leaf spring 11 from bouncing as designed, thereby improving the overall vehicle performance of the vehicle.

[0049] The frame assembly according to an embodiment of the present invention includes: the link assembly 10 as described above. Thus, since the link assembly 10 as shown above is provided in the frame assembly, the upright post 100 is connected to the leaf spring 11, and the slider 200 is provided outside the upright post 100. Since the connecting members 300 for connecting to the leaf spring 11 are provided on both sides of the slider 200, when the leaf spring 11 bounces, the bouncing displacements on both sides of the leaf spring 11 are different, so that the displacement vectors transmitted to the slider 200 through the connecting members 300 are different, causing the slider 200 to be restricted on the upright post 100, thereby preventing the leaf spring 11 from deforming, improving the service performance and service life, and further enhancing the reliability of the whole vehicle.

[0050] The vehicle according to an embodiment of the present invention includes: the frame assembly as described above. In this way, since the frame assembly as shown above is provided in the vehicle, the vibration of the wheel 13 is adapted to be transmitted through the leaf spring 11. Since the connecting members 300 for connecting to the leaf spring 11 are provided on both sides of the slider 200, when the leaf spring 11 bounces, the bouncing displacements on both sides of the leaf spring 11 are different, so that the displacement vectors transmitted to the slider 200 through the connecting members 300 are different, causing the slider 200 to be restricted on the upright post 100, thereby preventing the leaf spring 11 from deforming, improving the service performance and service life, and further enhancing the performance of the whole vehicle.

[0051] The other configurations and operations of the vehicle according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0052] The terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0053] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A connecting rod assembly for a leaf spring, characterized in that, Comprising: A column, which is connected to an axle; A sliding member, which is slidably arranged on the column; Connecting members, there are multiple connecting members, one end of each connecting member is rotatably connected to the sliding member, and the other end of each connecting member is rotatably connected to the leaf spring. During the deformation process of the leaf spring, the sliding member is driven to slide on the column through the connecting members.

2. The link assembly for a leaf spring according to claim 1, wherein, Each of the connecting members is obliquely arranged and connected.

3. The link assembly for a leaf spring according to claim 2, characterized in that, The multiple connecting members at least include: A first connecting member, one end of the first connecting member is connected to the sliding member, and the other end of the first connecting member is connected to the leaf spring; A second connecting member, one end of the second connecting member is connected to the sliding member, and the other end of the second connecting member is connected to the leaf spring. The second connecting member and the first connecting member are oppositely arranged on both sides of the sliding member.

4. The link assembly for a leaf spring according to claim 3, wherein The sliding member includes: a slider, the slider is sleeved on the column, and both the first connecting member and the second connecting member are connected to the slider.

5. The link assembly for a leaf spring according to claim 4, characterized in that, The sliding member further includes: a sliding limiting member, the sliding limiting member is connected to the top side of the slider, and the sliding limiting member is slidably arranged outside the column.

6. The link assembly for a leaf spring according to claim 5, characterized in that, Further comprising: Rotating members, there are multiple rotating members, and at least two rotating members are respectively connected to both ends of the connecting member. One of the rotating members is rotatably connected to the slider, and the other rotating member is connected to the leaf spring.

7. The link assembly for a leaf spring according to claim 5, characterized in that, The column extends in the vertical direction, the sliding limiting member is sleeved outside the column, and the sliding limiting member moves relative to the column.

8. The link assembly for a leaf spring according to claim 5, characterized in that, The sliding limiting member is a sliding bearing.

9. A frame assembly, characterized in that, Comprising: The link assembly according to any one of claims 1-8.

10. A vehicle, characterized in that, Comprising: The vehicle frame assembly according to claim 9.