Plate spring assembly and vehicle

Abstract

The utility model discloses a plate spring assembly and a vehicle, and relates to the technical field of vehicle engineering, the plate spring assembly comprises a plate spring body, a connecting assembly and a detection assembly, the plate spring body is provided with a wheel end and a vehicle body end which are oppositely arranged; the connecting assembly is used for connecting the plate spring body and wheels. The detection assembly is arranged between the plate spring body and the connecting assembly and located at the vehicle body end of the plate spring body. Wherein the detection assembly comprises a base plate and a plurality of sensors, each sensor is connected with the base plate, the sensors are arranged on the base plate at intervals, each sensor is located at the end, close to the plate spring body, of the base plate, and at least one sensor can detect the pressure between the plate spring body and the base plate. The technical scheme provided by the utility model can solve the problem that the traditional vehicle plate spring monitoring can only obtain pressure data of limited positions and cannot comprehensively display the full view of pressure distribution of the plate spring under complex working conditions.

Description

Technical Field

[0001] This utility model relates to the field of vehicle engineering technology, and in particular to a leaf spring assembly and a vehicle. Background Technology

[0002] During the operation of a freight vehicle, the leaf spring, as a core component of the suspension system, directly bears the vehicle's load and various forces transmitted from the road surface. Its pressure distribution not only reflects the vehicle's load condition but is also closely related to the vehicle's stability, comfort, and the leaf spring's own fatigue life.

[0003] Currently, traditional monitoring methods for vehicle leaf springs have many limitations. In most cases, they can only acquire pressure data from a limited number of locations, failing to comprehensively show the pressure distribution of the leaf spring under complex operating conditions. For example, when a vehicle is turning, braking, or driving on uneven roads, the stress on different parts of the leaf spring varies significantly, making it difficult for sensors to accurately capture these changes, leading to inaccurate assessments of the vehicle's actual operating status. Utility Model Content

[0004] The main purpose of this invention is to propose a leaf spring assembly and a vehicle, which aims to solve the problem that traditional vehicle leaf spring monitoring can only obtain pressure data at limited locations and cannot fully display the pressure distribution of the leaf spring under complex working conditions.

[0005] To achieve the above objectives, the present invention proposes a leaf spring assembly for use in vehicles, comprising a leaf spring body, a connecting assembly, and a detection assembly. The leaf spring body has a wheel end and a body end disposed opposite to each other. The connecting assembly is used to connect the leaf spring body and the wheel. The detection assembly is disposed between the leaf spring body and the connecting assembly, and is located at the body end of the leaf spring body. The detection assembly includes a base plate and multiple sensors, each sensor being connected to the base plate and spaced apart from each other on the base plate. Each sensor is located at one end of the base plate near the leaf spring body, and at least one sensor is capable of detecting the pressure between the leaf spring body and the base plate.

[0006] In one embodiment, the substrate is recessed with a fixing groove, each of the sensors is spaced apart at the bottom of the fixing groove, and a portion of the structure of the leaf spring body is contained within the fixing groove.

[0007] In one embodiment, the substrate has a connection hole located on the wall of the fixing groove, and the connection hole connects the fixing groove to the outside.

[0008] In one embodiment, the detection assembly includes a plurality of buffers, each of which is connected to a sensor and is located at one end of the sensor near the leaf spring body.

[0009] In one embodiment, the detection assembly further includes a plurality of protective covers, each of which is fitted over one of the sensors and is connected to the substrate.

[0010] In one embodiment, each of the protective covers is provided with a pressure relief hole, which connects the protective cover to the outside.

[0011] In one embodiment, the leaf spring body has a positioning hole that extends along the direction from the wheel end to the vehicle body end, and the base plate has a mating hole that is concentrically arranged with the positioning hole and the mating hole.

[0012] In one embodiment, the connecting assembly includes a cover plate and a base plate, both of which are detachably connected to the leaf spring body, and the base plate is located between the cover plate and the leaf spring body.

[0013] In one embodiment, the connecting assembly further includes a U-bolt, and the cover plate has a reinforcing boss that engages with the U-bolt.

[0014] This utility model also proposes a vehicle, including a leaf spring assembly.

[0015] This invention presents a leaf spring assembly comprising a leaf spring body, a connecting assembly, and a detection assembly. The leaf spring body, a core component of the vehicle suspension system, is connected to the wheel at its wheel end via the connecting assembly, and fixed to the vehicle chassis at its body end. The detection assembly is installed at the body end of the leaf spring body, located between the leaf spring body and the connecting assembly. The base plate of the detection assembly is fixed to the leaf spring body with bolts or adhesive, and multiple sensors are evenly spaced on the base plate, close to one end of the leaf spring body. These sensors are high-precision compressive force sensors, capable of detecting pressure changes between the leaf spring body and the base plate in real time. Through a data cable, the sensors transmit the detected pressure signals to the vehicle's control system, thereby achieving real-time monitoring of the leaf spring's stress state. This arrangement ensures that the sensors can comprehensively capture the pressure distribution of the leaf spring under different operating conditions, providing accurate data support for the vehicle's intelligent control system. By setting the detection assembly at the body end, this leaf spring assembly can accurately monitor the pressure distribution of the leaf spring body under complex operating conditions, solving the problem that traditional monitoring methods cannot comprehensively capture pressure changes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a structure of an embodiment of the leaf spring assembly provided by this utility model;

[0018] Figure 2 A schematic diagram of another embodiment of the leaf spring assembly provided by this utility model;

[0019] Figure 3 A schematic diagram of the structure of an embodiment of the detection component provided by this utility model;

[0020] Figure 4 for Figure 3 Enlarged view at point A;

[0021] Figure 5 A schematic diagram of a vehicle embodiment provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Leaf spring assembly; 1. Leaf spring body; 1a. Wheel end; 1b. Body end; 2. Connecting assembly; 3. Detection assembly; 31. Base plate; 32. Sensor; 31a. Fixing groove; 31b. Connecting hole; 33. Buffer; 34. Protective cover; 34a. Pressure relief hole; 1c. Positioning hole; 31c. Mating hole; 21. Cover plate; 22. Base plate; 23. U-bolt; 211. Reinforcing boss; 200. Vehicle.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] 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 scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a leaf spring assembly 100.

[0029] Please see Figures 1 to 3 In one embodiment of this utility model, the leaf spring assembly 100 is applied to a vehicle and includes a leaf spring body 1, a connecting assembly 2, and a detection assembly 3. The leaf spring body 1 has a wheel end 1a and a body end 1b that are disposed opposite to each other. The connecting assembly 2 is used to connect the leaf spring body 1 and the wheel. The detection assembly 3 is disposed between the leaf spring body 1 and the connecting assembly 2 and is located at the body end 1b of the leaf spring body 1. The detection assembly 3 includes a base plate 31 and a plurality of sensors 32. Each sensor 32 is connected to the base plate 31 and is spaced apart on the base plate 31. Each sensor 32 is located at one end of the base plate 31 near the leaf spring body 1, and at least one sensor 32 can detect the pressure between the leaf spring body 1 and the base plate 31.

[0030] This invention provides a leaf spring assembly 100, comprising a leaf spring body 1, a connecting assembly 2, and a detection assembly 3. The leaf spring body 1, as a core component of the vehicle suspension system, has its wheel end 1a connected to the wheel via the connecting assembly 2, and its body end 1b fixed to the vehicle chassis. The detection assembly 3 is installed at the body end 1b of the leaf spring body 1, located between the leaf spring body 1 and the connecting assembly 2. The base plate 31 of the detection assembly 3 is fixed to the leaf spring body 1 with bolts or adhesive. Multiple sensors 32 are evenly spaced on the base plate 31, close to one end of the leaf spring body 1. These sensors 32 are high-precision compressive force sensors, capable of detecting pressure changes between the leaf spring body 1 and the base plate 31 in real time. Through a data cable, the sensors 32 transmit the detected pressure signals to the vehicle's control system, thereby achieving real-time monitoring of the leaf spring's stress state. This arrangement ensures that the sensors 32 can comprehensively capture the pressure distribution of the leaf spring under different operating conditions, providing accurate data support for the vehicle's intelligent control system. This leaf spring assembly 100, by setting a detection component 3 at the vehicle body end 1b, can accurately monitor the pressure distribution of the leaf spring body 1 under complex working conditions, solving the problem that traditional monitoring methods cannot fully capture pressure changes. This improves the accuracy of vehicle load measurement and can also reflect the dynamic stress state during vehicle operation in real time, thus providing crucial data support for vehicle stability control, adaptive adjustment of the suspension system, and fatigue life assessment.

[0031] In one embodiment of this utility model, please refer to Figure 3 The substrate 31 is recessed with a fixing groove 31a, and each sensor 32 is spaced apart at the bottom of the fixing groove 31a. A portion of the structure of the leaf spring body 1 is located within the fixing groove 31a.

[0032] In this embodiment, the base plate 31 of the detection component 3 is designed with a fixing groove 31a for mounting and fixing multiple sensors 32. The bottom of the fixing groove 31a has multiple spaced mounting positions, and each sensor 32 is fixed to a mounting position at the bottom of the groove by welding or adhesive. A portion of the leaf spring body 1 (such as the edge of the leaf spring) is accommodated and confined within the fixing groove 31a, ensuring close contact between the sensor 32 and the leaf spring body 1. This ensures that the sensor 32 can accurately detect pressure changes between the leaf spring body 1 and the base plate 31. This structural design not only improves the installation accuracy and stability of the sensor 32, but also prevents the sensor 32 from shifting due to vibration or impact during vehicle operation through the limiting effect of the fixing groove 31a, ensuring the reliability of the detection data. By setting the fixing groove 31a on the base plate 31 and mounting the sensor 32 at the bottom of the groove, this design achieves precise positioning and stable fixing of the sensor 32, effectively solving the loosening or displacement problems that may occur in traditional sensor 32 mounting methods. Meanwhile, the fixing groove 31a accommodates and limits part of the structure of the leaf spring body 1, further enhancing the contact stability between the sensor 32 and the leaf spring body 1, and improving the accuracy and reliability of pressure detection. This structural design not only improves the durability and stability of the detection component 3 under complex working conditions, but also reduces maintenance costs and safety hazards caused by sensor 32 failure or data deviation, significantly improving the overall performance and service life of the vehicle suspension system.

[0033] In one embodiment of this utility model, please refer to Figure 3 and Figure 4 The substrate 31 has a connection hole 31b, which is located on the wall of the fixing groove 31a and connects the fixing groove 31a to the outside.

[0034] In one embodiment, the structural design of the substrate 31 is further optimized to meet the requirements of sensor 32 installation and signal transmission. Connection holes 31b are provided on the substrate 31. These connection holes 31b are located on the wall of the fixing groove 31a and communicate with the interior of the fixing groove 31a, while extending to the outside of the substrate 31. The design of the connection holes 31b allows the signal lines of the sensor 32 to be led out from the interior of the fixing groove 31a to the outside of the substrate 31 through the connection holes 31b, thereby realizing the electrical connection between the sensor 32 and the vehicle control system or other monitoring equipment. This structure not only ensures stable signal transmission from the sensor 32, but also, through the reasonable layout of the connection holes 31b, avoids interference between the signal lines and leaf springs or other components during installation, improving the overall assemblability and reliability of the assembly. By providing connection holes 31b in the wall of the fixing groove 31a of the substrate 31, this design achieves concealed wiring of the sensor 32 signal lines, effectively reducing the exposure of the signal lines to the external environment and lowering the risk of signal transmission failure due to dust, moisture, or mechanical damage. Meanwhile, the connectivity design of the connection hole 31b ensures a stable connection between the sensor 32 and external devices, improving the reliability of data transmission.

[0035] In one embodiment of this utility model, please refer to Figure 4 The detection component 3 includes multiple buffers 33, each buffer 33 is connected to a sensor 32, and each buffer 33 is located at one end of the sensor 32 near the leaf spring body 1.

[0036] In this embodiment, each sensor 32 of the detection assembly 3 contacts the leaf spring body 1 via a buffer 33. Specifically, the buffer 33 is installed at the end of the sensor 32 closest to the leaf spring body 1, directly contacting the leaf spring body 1. The buffer 33 is made of an elastic material (such as rubber or silicone) and can effectively absorb the impact and vibration generated during vehicle operation. The sensor 32 is fixed to the base plate 31 by screws or adhesive, and the buffer 33 is connected to the sensor 32 by nesting or bonding. This structural design ensures that the sensor 32 can uniformly transmit the pressure signal through the buffer 33 when measuring the leaf spring pressure, while avoiding damage to the sensor 32 due to direct contact. By setting the buffer 33 between the sensor 32 and the leaf spring body 1, this design can significantly improve the reliability and durability of the detection assembly 3. The elastic properties of the buffer 33 can effectively absorb and mitigate the impact and vibration generated during vehicle operation, protecting the sensor 32 from mechanical damage, thereby extending the service life of the sensor 32 and ensuring the accuracy of the measurement data. In addition, the buffer 33 can improve the uniformity of pressure transmission, further improve the monitoring accuracy of the detection component 3 on the pressure distribution of the leaf spring, and provide more reliable signal support for the vehicle's intelligent control system.

[0037] In one embodiment of this utility model, please refer to Figure 4 The detection component 3 also includes multiple protective covers 34, each protective cover 34 is fitted onto a sensor 32, and each protective cover 34 is connected to the substrate 31.

[0038] In one embodiment, each sensor 32 of the detection assembly 3 is fitted with a protective cover 34 to provide additional protection. The protective cover 34 is made of a high-strength, corrosion-resistant material (such as engineering plastics or aluminum alloy) and is fixed to the substrate 31 by threaded connection, snap-fit, or adhesive. The protective cover 34 is designed as a hollow structure, with an internal space capable of accommodating the sensor 32, while a certain gap is reserved between the sensor 32 and the protective cover 34 to avoid affecting the normal operation of the sensor 32. The top and sides of the protective cover 34 have small through holes for pressure signal transmission, while preventing dust, moisture, and debris from entering the sensor 32. This structural design ensures that the sensor 32 can operate stably under harsh conditions, while facilitating the installation and removal of the protective cover 34, and simplifying the maintenance and replacement of the sensor 32. By equipping each sensor 32 with a protective cover 34, this design significantly improves the reliability and durability of the detection assembly 3 under complex operating conditions. The protective cover 34 effectively blocks the intrusion of external dust, moisture, and debris, preventing the sensor 32 from experiencing performance degradation or damage due to environmental factors, thereby extending the service life of the sensor 32 and ensuring the accuracy of measurement data. Furthermore, the structural design of the protective cover 34 enhances the overall protective performance of the detection assembly 3 without affecting the signal transmission of the sensor 32, reduces maintenance costs, and improves the stability and adaptability of the leaf spring assembly 100 in practical applications.

[0039] In one embodiment of this utility model, please refer to Figure 4 Each protective cover 34 is provided with a pressure relief hole 34a, which connects the protective cover 34 to the outside.

[0040] In this embodiment, each protective cover 34 is designed with pressure relief holes 34a, which penetrate the wall of the protective cover 34, connecting the interior of the protective cover 34 with the external environment. The size of the pressure relief holes 34a is precisely calculated to ensure that the pressure difference between the inside and outside of the protective cover 34 can be quickly balanced without affecting the protective performance of the protective cover 34. Specifically, the pressure relief holes 34a are distributed on the side or top of the protective cover 34, and there are usually multiple holes to improve the efficiency of pressure balancing. With this design, when the sensor 32 inside the protective cover 34 measures the pressure of the leaf spring, it can maintain pressure consistency with the outside through the pressure relief holes 34a, thereby avoiding measurement errors caused by pressure differences between the inside and outside of the protective cover 34. By setting pressure relief holes 34a on the protective cover 34, this design effectively solves the problem of pressure imbalance between the inside and outside of the protective cover 34. The pressure relief holes 34a can quickly balance the pressure difference between the inside and outside of the protective cover 34, ensuring that the sensor 32 can accurately reflect the actual force of the leaf spring during the measurement process, avoiding measurement deviations caused by pressure differences. Furthermore, the design of the pressure relief hole 34a, without affecting the protective performance of the protective cover 34, further improves the measurement accuracy and reliability of the detection component 3, enabling it to work stably under complex working conditions and providing strong support for the accurate monitoring of the vehicle suspension system.

[0041] In one embodiment of this utility model, please refer to Figure 2 The leaf spring body 1 has a positioning hole 1c, which extends along the direction from the wheel end 1a to the vehicle body end 1b. The base plate 31 has a mating hole 31c, and the positioning hole 1c and the mating hole 31c are concentrically arranged.

[0042] In one embodiment, the leaf spring body 1 has a positioning hole 1c along the direction from the wheel end 1a to the vehicle body end 1b to ensure the precise installation of the detection component 3. A mating hole 31c is correspondingly provided on the base plate 31. The positioning hole 1c and the mating hole 31c are concentrically arranged. By inserting a positioning pin or other positioning device into the positioning hole 1c and the mating hole 31c, precise alignment and fixation of the base plate 31 and the leaf spring body 1 are achieved. This concentric arrangement of the positioning hole 1c and the mating hole 31c effectively ensures the positional accuracy of the detection component 3 during installation, ensuring uniform contact between the sensor 32 and the leaf spring body 1, thereby improving the accuracy and reliability of pressure detection. Simultaneously, the concentric hole design simplifies the installation process, reducing installation difficulty and time costs. By providing concentric positioning holes 1c and mating holes 31c on the leaf spring body 1 and the base plate 31, this design significantly improves the installation accuracy and stability of the detection component 3. The concentric hole arrangement effectively avoids uneven contact of the sensor 32 caused by installation position deviations, ensuring the accuracy and consistency of pressure detection data.

[0043] In one embodiment of this utility model, please refer to Figure 2The connecting component 2 includes a cover plate 21 and a base plate 22, both of which are detachably connected to the leaf spring body 1. The base plate 31 is located between the cover plate 21 and the leaf spring body 1.

[0044] In this embodiment, the connecting component 2 consists of a cover plate 21 and a base plate 22, both of which are fixedly connected to the leaf spring body 1 by bolts, snaps, or other detachable connection methods. The base plate 31 is installed between the cover plate 21 and the leaf spring body 1, achieving a tight fit with the leaf spring body 1 through the pressing action of the cover plate 21. The design of the cover plate 21 and the base plate 22 not only provides stable support and protection for the base plate 31 but also ensures the structural stability of the detection component 3 during vehicle operation. This layered structure design makes the installation and disassembly of the detection component 3 more convenient, facilitating the maintenance or replacement of the sensor 32 and the base plate 31 without affecting the overall structure and function of the leaf spring body 1. By using the connecting component 2 composed of the cover plate 21 and the base plate 22, and placing the base plate 31 between the cover plate 21 and the leaf spring body 1, this design achieves stable installation and quick disassembly of the detection component 3. This structure not only improves the installation accuracy and stability of the detection component 3 but also facilitates the maintenance or replacement of the sensor 32 and the base plate 31, reducing maintenance costs and time. In addition, the protective functions of the cover plate 21 and the base plate 22 further enhance the durability of the detection component 3, enabling it to operate stably under complex working conditions and effectively improving the overall performance and reliability of the leaf spring assembly 100.

[0045] In one embodiment of this utility model, please refer to Figure 2 The connecting component 2 also includes a U-bolt 23, and the cover plate 21 is provided with a reinforcing boss 211, which cooperates with the U-bolt 23.

[0046] In one embodiment, the connecting assembly 2 is further optimized to enhance structural stability. The connecting assembly 2 includes a U-bolt 23 for securing the leaf spring body 1 to other components of the wheel end 1a. A reinforcing boss 211 protrudes from the cover plate 21. The shape and size of the reinforcing boss 211 match the nut portion of the U-bolt 23, allowing for a tight fit. This design provides additional support and positioning during the tightening of the U-bolt 23, ensuring a more stable connection between the cover plate 21 and the leaf spring body 1. Simultaneously, the design of the reinforcing boss 211 effectively disperses the tightening force of the U-bolt 23, preventing localized stress concentration from damaging the leaf spring body 1 or the cover plate 21. By providing a reinforcing boss 211 on the cover plate 21 that mates with the U-bolt 23, this design significantly improves the structural strength and stability of the connecting assembly 2. The reinforced boss 211 not only provides reliable support for the U-bolt 23, but also avoids local stress concentration by dispersing the tightening force, thereby extending the service life of the leaf spring body 1 and the cover plate 21.

[0047] This utility model also proposes a vehicle 200, please refer to [reference needed]. Figure 5 The vehicle 200 includes a leaf spring assembly 100, the specific structure of which is as described in the above embodiments. Since the vehicle 200 adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. The vehicle 200 may include agricultural machinery or transport vehicles, etc.

[0048] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A leaf spring assembly, used in a vehicle, characterized in that, The plate spring assembly comprises a plate spring body (1) having a wheel end (1a) and a vehicle body end (1b) arranged oppositely; a connecting assembly (2) for connecting the plate spring body (1) and a wheel; and a detection assembly (3) arranged between the plate spring body (1) and the connecting assembly (2), and located at the vehicle body end (1b) of the plate spring body (1). The detection assembly (3) comprises a base plate (31) and a plurality of sensors (32), each of which is connected to the base plate (31) and is spaced apart therefrom, and each of which is located at one end of the base plate (31) close to the plate spring body (1), and at least one of which can detect the pressure between the plate spring body (1) and the base plate (31). The base plate (31) is recessed with a fixing groove (31a), each of the sensors (32) is spaced apart from the bottom of the fixing groove (31a), and part of the structure of the plate spring body (1) is accommodated in the fixing groove (31a). The base plate (31) is provided with a connecting hole (31b), which is located at the groove wall of the fixing groove (31a) and communicates the fixing groove (31a) with the outside. The detection assembly (3) comprises a plurality of buffers (33), each of which is connected to a sensor (32), and each of which is located at one end of the sensor (32) close to the plate spring body (1). The detection assembly (3) further comprises a plurality of protective covers (34), each of which is sleeved on a sensor (32), and each of which is connected to the base plate (31).

2. The leaf spring assembly of claim 1, wherein, Each of the protective covers (34) is provided with a pressure release hole (34a) that communicates the protective cover (34) with the outside.

3. The leaf spring assembly of claim 2, wherein, The plate spring body (1) is provided with a positioning hole (1c) extending in the direction from the wheel end (1a) to the vehicle body end (1b), and the base plate (31) is provided with a matching hole (31c), and the positioning hole (1c) and the matching hole (31c) are arranged concentrically.

4. The leaf spring assembly of claim 2, wherein, The connecting assembly (2) comprises a cover plate (21) and a bottom plate (22), both of which are detachably connected to the plate spring body (1), and the base plate (31) is located between the cover plate (21) and the plate spring body (1).

5. The leaf spring assembly of claim 4, wherein, The connecting assembly (2) further comprises a U-shaped bolt (23), and the cover plate (21) is provided with a reinforcing boss (211) matched with the U-shaped bolt (23).

6. The leaf spring assembly of claim 5, wherein, The plate spring assembly comprises any one of claims 1-9.

7. The leaf spring assembly of any one of claims 1 to 6, wherein, ​ 8. The leaf spring assembly of any one of claims 1 to 6, wherein, ​ 9. The leaf spring assembly of claim 8, wherein, ​ 10. A vehicle characterized by comprising: ​

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