Support bridge device

Abstract

The present disclosure relates to a support bridge device, comprising a vehicle frame body, the outer side of which is symmetrically provided with an arc-shaped structure capable of accommodating a tire; and a suspension structure symmetrically connected to the lower side of the vehicle frame body. The suspension structure comprises a chassis structure, a balancing support assembly, a shock absorber, and a wheel seat structure, wherein the first end of the balancing support assembly and the first end of the shock absorber are respectively connected to the first end of the chassis structure, and the second end of the balancing support assembly and the second end of the shock absorber are respectively connected to the vehicle frame body; the wheel seat structure is provided on the outer side of the chassis structure and is used to mount a wheel end assembly; and the second end of the chassis structure is connected to the vehicle frame body. The support bridge device disclosed in the present disclosure has a simple structure and a low deadweight. When used in a vehicle, it can increase the vehicle aisle space, facilitate passenger passage or cargo handling, and improve passenger comfort.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle manufacturing, and in particular to a supporting bridge device. Background Art

[0002] With the continuous development of the vehicle transportation industry, both passenger and cargo vehicles have higher requirements for vehicle space. Large-space vehicles mean a corresponding increase in passenger or cargo capacity. Existing support bridges generally adopt a wheel end and connecting beam structure. The connecting beam connects the two wheel ends. The connecting beam is generally a straight beam or a sunken type. The suspension structure is generally used to support the vehicle body to ensure that it is in a balanced state. The suspension structure generally adopts leaf spring suspension or air suspension. The leaf spring suspension or air suspension is fixed to the connecting beam. The structure of leaf spring suspension and air suspension is generally more complex and has relatively more structural components, which leads to an increase in the weight of the overall support bridge. In addition, due to the type of existing support bridge structure and suspension structure, the aisle space of the vehicle is reduced. When carrying passengers, it will cause passengers to have difficulty moving around and lack of passenger comfort; when carrying cargo, it will affect the cargo loading capacity. Summary of the Invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a supporting bridge device, the purpose of which is to reduce the deadweight of the supporting bridge device and increase the aisle space of the supporting bridge device while meeting the load-bearing requirements and support requirements of the supporting bridge device.

[0004] The embodiment of the present disclosure provides a supporting bridge device, comprising: a frame body, wherein an arc structure capable of accommodating a tire is symmetrically arranged on the outer side of the frame body; and a suspension structure, wherein the suspension structure is symmetrically connected to the lower side of the frame body, and the suspension structure comprises a chassis structure, a balancing support assembly, a shock absorbing device and a wheel seat structure, wherein the first end of the balancing support assembly and the first end of the shock absorbing device are respectively connected to the first end of the chassis structure, and the second end of the balancing support assembly and the second end of the shock absorbing device are respectively connected to the frame body; the wheel seat structure is arranged on the outer side of the chassis structure, and the wheel seat structure is used for installing a wheel end assembly; the second end of the chassis structure is connected to the frame body.

[0005] In one embodiment, the frame body includes a first frame body and a second frame body; the first frame body is composed of a frame structure support and a reinforcement structure support, wherein the reinforcement structure support is connected to the inside of the frame structure support, and the reinforcement structure support is used to reinforce the frame structure support; the second frame body is symmetrically connected to the first frame body, the arc structure is arranged on the second frame body, and the second end of the balance support assembly is connected to the second frame body.

[0006] In one embodiment, the frame structure support includes a quadrilateral structure support and a triangular structure support, and the triangular structure support is connected to the inside of the quadrilateral structure support; grooves are symmetrically arranged on the quadrilateral structure support at the position opposite to the arc structure, and the grooves are used to accommodate the wheel seat structure.

[0007] In one embodiment, a first connecting portion and a second connecting portion are provided at the second end of the chassis structure, and the first connecting portion and the second connecting portion are respectively connected to the frame body; and a notch is provided on the first connecting portion.

[0008] In one embodiment, the chassis structure includes a first suspension and a second suspension; the first end of the first suspension is connected to the first end of the second suspension to form the first end of the chassis structure; the first connecting portion is arranged at the second end of the first suspension, and the second connecting portion is arranged at the second end of the second suspension.

[0009] In one embodiment, the chassis structure further includes a connecting component, and the connecting component is used to fixedly connect the first suspension and the second suspension.

[0010] In one embodiment, the first suspension, the second suspension, and the connecting component are integrally formed.

[0011] In one embodiment, the first end of the first connecting portion and the first end of the second connecting portion are respectively hinged to the second end of the chassis structure, and the second end of the first connecting portion and the second end of the second connecting portion are respectively fixedly connected to the frame body.

[0012] In one embodiment, the first end of the first connecting portion and the first end of the second connecting portion are respectively fixedly connected to the second end of the chassis structure, and the second end of the first connecting portion and the second end of the second connecting portion are respectively hinged to the frame body.

[0013] In one embodiment, the balancing support assembly is at least one of an elastic assembly and an airbag; the elastic assembly includes an upper plate assembly, a coil spring and a lower plate assembly; the upper plate assembly is connected to the frame body; the lower plate assembly is connected to the first end of the chassis structure; the coil spring is fixed between the upper plate assembly and the lower plate assembly, and based on the expansion and contraction of the coil spring, the upper plate assembly and the lower plate assembly can move relative to each other to adjust the balance of the frame body.

[0014] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0015] The supporting bridge device provided in the embodiment of the present disclosure realizes the articulation of the suspension structure and the frame body through a balancing support assembly, a shock-absorbing device, and a first connecting part and a second connecting part. While the supporting bridge device meets the vehicle load-bearing requirements and vehicle support requirements, the connecting beam structure between the suspension structure is eliminated, the weight of the supporting bridge device itself is reduced, and the aisle space of the supporting bridge device is increased, which facilitates the passage of passengers or the loading and unloading of goods and improves the comfort of passengers passing through.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] Figure 1 It is a schematic diagram of a straight beam support bridge structure according to an existing exemplary embodiment.

[0019] Figure 2 It is a structural schematic diagram of a sunken support bridge and leaf spring suspension structure according to an existing exemplary embodiment.

[0020] Figure 3 The figure is a schematic diagram of a combined structure of a supporting bridge and a vehicle frame according to an existing exemplary embodiment.

[0021] Figure 4 It is a schematic structural diagram of a supporting bridge device according to an exemplary embodiment of the present disclosure.

[0022] Figure 5 1 is a schematic structural diagram of a suspension structure according to an exemplary embodiment of the present disclosure.

[0023] Figure 6 It is a structural schematic diagram of a chassis structure according to an exemplary embodiment of the present disclosure.

[0024] Figure 7 2 is a schematic structural diagram of an elastic component according to an exemplary embodiment of the present disclosure.

[0025] Figure 8 It is a structural schematic diagram of a frame body according to an exemplary embodiment of the present disclosure.

[0026] Figure 9 FIG. 1 is a schematic structural diagram of a second bracket according to an exemplary embodiment of the present disclosure.

[0027] Description of reference numerals:

[0028] Wheel end 101, connecting beam 102, leaf spring suspension structure 103, vehicle frame 104, aisle width W1;

[0029] Frame body 1, first frame body 11, second frame body 12, quadrilateral structure bracket 111, triangular structure bracket 112, first bracket 1111, second bracket 1112, third bracket 1113, fourth bracket 1114, groove 1115, first fixing rod 1121, second fixing rod 1122, third fixing rod 1123, first connecting rod 113, second connecting rod 114, third connecting rod 115, arc structure 121;

[0030] Suspension structure 2, underframe structure 21, balancing support assembly 22, shock absorber 23, wheel seat structure 24, connecting component 25, first suspension 211, second suspension 212, first connecting portion 213, second connecting portion 214, first connecting portion first end 2131, first connecting portion second end 2132, second connecting portion first end 2141, second connecting portion second end 2142, first suspension first end 2111, first suspension second end 2112, second suspension first end 2121, second suspension second end 2122, balancing support assembly first end 221, balancing support assembly second end 222, shock absorber first end 231, shock absorber second end 232, connecting rod 251, connecting piece 252, hollow hole 2521, elastic component 223, upper plate assembly 2231, coil spring 2232, lower plate assembly 2233, notch 2133;

[0031] Channel width W2. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0033] Related Art Embodiments

[0034] Figure 1 It is a schematic diagram of a straight beam support bridge structure according to an existing exemplary embodiment. Figure 2 It is a structural schematic diagram of a sunken support bridge and leaf spring suspension structure according to an existing exemplary embodiment. Figure 3 The figure is a schematic diagram of a combined structure of a supporting bridge and a vehicle frame according to an existing exemplary embodiment.

[0035] like Figures 1 to 3As shown, in the related art, the supporting bridge includes two wheel ends 101 and a connecting beam 102, and the connecting beam 102 is horizontal between the two wheel ends 101 and connects them. The connection method of the connecting beam 102 and the two wheel ends 101 may include a straight beam type (such as Figure 1 as shown) and sunken (as shown) Figure 2 To support the vehicle body, the support bridge is equipped with a suspension structure, located at both ends of the connecting beam 102. The addition of connecting beam 102 increases the overall weight of the support bridge, and the structure of the support bridge also limits the aisle space inside the vehicle. The aisle space can be used for passenger passage or cargo loading, and the size of the aisle space determines the comfort of passengers and the amount of cargo that can be loaded.

[0036] To increase aisle space, another related technology has improved the suspension structure, employing a leaf spring suspension structure 103 to increase aisle space within the vehicle. Leaf spring suspension structure 103 is symmetrically mounted at both ends of connecting beam 102. Leaf spring suspension structure 103 is connected to vehicle frame 104. Leaf spring suspension structure 103 and connecting beam 102 support vehicle frame 104 and ensure the overall balance of the vehicle body. However, due to the structural limitations of the supporting bridge and leaf spring suspension structure 103, the overall weight of the vehicle body increases. While the aisle width W1 within the vehicle is somewhat increased, the maximum aisle width W1 can be increased to 850 mm, far from meeting market demand.

[0037] To solve related technical problems, the embodiments of the present disclosure provide a supporting bridge device that can be used in vehicles such as family cars, buses, and cargo trucks.

[0038] Embodiments of the present disclosure

[0039] Figure 4 It is a schematic structural diagram of a supporting bridge device according to an exemplary embodiment of the present disclosure. Figure 5 1 is a schematic structural diagram of a suspension structure 2 according to an exemplary embodiment of the present disclosure.

[0040] like Figures 4 and 5As shown, the supporting bridge device provided by the embodiment of the present disclosure includes: a frame body 1 and a suspension structure 2. The outer side surface of the frame body 1 is symmetrically provided with an arc structure 121 that can accommodate a tire. The suspension structure 2 is symmetrically connected to the lower side of the frame body 1. The suspension structure 2 includes a chassis structure 21, a balancing support assembly 22, a shock absorbing device 23 and a wheel seat structure 24, wherein the first end 221 of the balancing support assembly and the first end 231 of the shock absorbing device are respectively connected to the first end of the chassis structure, and the second end 222 of the balancing support assembly and the second end 232 of the shock absorbing device are respectively connected to the frame body 1. The wheel seat structure 24 is provided on the outer side surface of the chassis structure 21, and the wheel seat structure 24 is used to install the wheel end assembly, and the tire is installed on the wheel end assembly. The second end of the chassis structure is connected to the frame body 1.

[0041] The support bridge device provided in the disclosed embodiment is connected to the vehicle frame body 1 via the second end of the underframe structure, and the suspension structure 2 is connected to the vehicle frame body 1 via a balancing support assembly 22 and a shock absorber 23. Compared to the prior art, the wheel seat structure 24 in the disclosed embodiment is disposed on the outer side of the underframe structure 21 (their combination corresponds to the wheel end 101 of the prior art). The underframe structure 21 is connected to the vehicle frame body 1, eliminating the need for a corresponding connection via a connecting beam 102 in the prior art. While maintaining good balance and stability, the support bridge device of the disclosed embodiment reduces its weight, thereby correspondingly reducing the unsprung mass of the suspension and the overall weight of the vehicle body. Furthermore, the suspension structure 2 in the disclosed embodiment can significantly increase the interior passage space of the vehicle, significantly increasing the passage width W2 to as much as 1440 mm.

[0042] Figure 6 2 is a schematic structural diagram of a chassis structure 21 according to an exemplary embodiment of the present disclosure.

[0043] like Figure 6 As shown, in the embodiment of the present disclosure, a first connecting portion 213 and a second connecting portion 214 are provided at the second end of the chassis structure, and the first connecting portion 213 and the second connecting portion 214 are respectively connected to the vehicle frame body 1. The chassis structure 21 includes a first suspension 211 and a second suspension 212, wherein the first suspension first end 2111 and the second suspension first end 2121 are connected to form the chassis structure first end; the first suspension second end 2112 and the second suspension second end 2122 are collectively referred to as the chassis structure second end. The first connecting portion 213 is provided on the first suspension second end 2112, and the second connecting portion 214 is provided on the second suspension second end 2122. The chassis structure 21 has a V-shaped structure, a Y-shaped structure, or an A-shaped structure in appearance.

[0044] Furthermore, in order to increase the stability of the chassis structure 21, the chassis structure 21 further includes a connecting component 25, which is used to fixedly connect the first suspension 211 and the second suspension 212. Figure 6 As shown, the connecting component 25 is arranged between the first end 2111 of the first suspension and the second end 2112 of the first suspension, and between the first end 2121 of the second suspension and the second end 2122 of the second suspension. By adding the connecting component 25, the purpose of strengthening the base frame structure 21 is achieved.

[0045] The connecting component 25 can be a connecting rod 251, a connecting plate 252, etc., with the purpose of strengthening the fixed connection between the first suspension 211 and the second suspension 212. In the embodiment of the present disclosure, the connecting component 25 is a connecting rod 251 and a connecting plate 252, wherein the connecting rod 251 is connected to the middle part of the first suspension 211 and the second suspension 212, that is, the connecting rod 251 is set between the first end 2111 of the first suspension and the second end 2112 of the first suspension, and between the first end 2121 of the second suspension and the second end 2122 of the second suspension; the connecting plate 252 is connected to the first suspension 211, the second suspension 212 and the lower part of the connecting rod 251, thereby increasing the fixed connection relationship between the first suspension 211 and the second suspension 212, thereby strengthening the base frame structure 21. In addition, a hollow hole 2521 is provided on the connecting piece 252. The function of the hollow hole 2521 is to reduce the weight of the base structure 21 itself; secondly, it can be used to discharge sewage and dirt. For example, when the base structure 21 is flushed with water, it can be used to discharge sewage generated during the cleaning process.

[0046] It should be noted that in the disclosed embodiment, three connecting rods 251 are provided, and the connecting piece 252 is a single, solid steel plate. The number of connecting rods 251 and connecting pieces 252 is not specifically limited herein, with the goal of achieving a desired fixed connection between the first suspension 211 and the second suspension 212. The shape of the hollow holes in the connecting piece 252 can be circular, elliptical, or rectangular with rounded corners, and is not specifically limited herein.

[0047] The following describes the connection method for the first suspension 211, second suspension 212, connecting rod 251, and connecting plate 252 components of the chassis structure 21: The first suspension 211 and second suspension 212 can be connected in a detachable manner. For example, the first suspension 211 and second suspension 212 can be bolted together, with corresponding through holes (not shown) provided on the first end 2111 of the first suspension and the first end 2121 of the second suspension. Bolts are passed through these through holes and then secured with nuts. Accordingly, the connecting rod 251 and connecting plate 252 can also be secured using the same connection method and method. Although this connection method requires more assembly time, it facilitates the replacement of components in the chassis structure 21.

[0048] In another connection method, the various components of the chassis structure 21 are integrally formed, that is, the first suspension 211, the second suspension 212, the connecting rod 251 and the connecting plate 252 are integrally formed, thereby saving the assembly time between the various components of the chassis structure 21 and relatively increasing the overall stability of the chassis structure 21.

[0049] In other connection methods, the components of the chassis structure 21 can be partially integrally formed. For example, the first suspension 211 and the second suspension 212 are integrally formed, and the connecting rod 251 and the connecting plate 252 are detachably connected to the first suspension 211 and the second suspension 212, but are not limited thereto.

[0050] Furthermore, Figure 6 As shown, in the supporting bridge device provided in the embodiment of the present disclosure, the first connecting portion 213 and the second connecting portion 214 are welded and fixed to the vehicle frame body 1, the first end 221 of the balancing support assembly and the first end 231 of the shock absorber are connected to the first end of the underframe structure, and the second end 222 of the balancing support assembly and the second end 232 of the shock absorber are connected to the vehicle frame body 1, thereby connecting the suspension structure 2 to the vehicle frame body 1. The suspension structure 2 can improve the stability of the vehicle frame body 1. The first end of the underframe structure in the suspension structure 2 is a free end, and the second end of the underframe structure is a fixed end. When the suspension structure 2 adjusts the vehicle frame body 1 to be balanced, the free end can produce a certain displacement relative to the frame body 1.

[0051] At the fixed end, the first connecting portion 213 and the second connecting portion 214 are preferably connected to the frame body 1 in such a manner that the first end 2131 of the first connecting portion and the first end 2141 of the second connecting portion are respectively hinged to the second end of the underframe structure, that is, the first end 2131 of the first connecting portion is hinged to the second end 2112 of the first suspension, and the first end 2141 of the second connecting portion is hinged to the second end 2122 of the second suspension; and the second end 2132 of the first connecting portion and the second end 2142 of the second connecting portion are respectively welded and fixedly connected to the frame body 1. Thus, when the suspension structure 2 adjusts the frame body 1 to a balanced state, the first end of the underframe structure can undergo a certain displacement relative to the frame body 1, with the hinge of the first suspension 211 and the hinge of the second suspension 212 serving as the fulcrum.

[0052] The first connecting portion 213 and the second connecting portion 214 can also be connected to the frame body 1 in such a manner that the second end 2132 of the first connecting portion and the second end 2142 of the second connecting portion are respectively hinged to the frame body 1, that is, the first end 2131 of the first connecting portion is welded and fixedly connected to the first suspension second end 2112, and the first end 2141 of the second connecting portion is welded and fixedly connected to the second suspension second end 2122; and the second end 2132 of the first connecting portion and the second end 2142 of the second connecting portion are respectively hinged to the frame body 1. Thus, when the suspension structure 2 adjusts the frame body 1 to a balanced state, the first end of the underframe structure can be displaced relative to the frame body 1 by using the hinge on the frame body 1 as a rotation fulcrum.

[0053] In the embodiment disclosed herein, the balancing support component 22 in the suspension structure 2 is mainly used to adjust the frame body 1 to a balanced state. The balancing support component 22 can be at least one of the elastic component 223 and the airbag. The elastic component 223 and the airbag are squeezed and rebounded to generate a certain rebound stroke, thereby achieving the purpose of adjusting the balance of the frame body 1.

[0054] Figure 7 2 is a schematic structural diagram of an elastic component 223 according to an exemplary embodiment of the present disclosure.

[0055] like Figure 7 As shown, in the embodiment of the present disclosure, the balancing support assembly 22 is preferably an elastic assembly 223, and the elastic assembly 223 includes an upper disc assembly 2231, a coil spring 2232, and a lower disc assembly 2233. The upper disc assembly 2231 is connected to the frame body 1, and the upper disc assembly 2231 includes an upper disc structure, a support rod, and a limit pad. Four screw holes are evenly arranged on the upper disc structure, and the upper disc structure is fixed to one end of the support rod through the screw holes. The limit pad is set at the other end of the support rod. The lower disc assembly 2233 includes a lower disc structure, a support block, and a limit block. Four screw holes are also evenly arranged on the lower disc structure, and the lower disc structure is fixed to one end of the support block through the screw holes. The limit block is set at the other end of the support block. Among them, the distance between the limit pad and the limit block is the maximum rebound stroke of the elastic assembly 223 when the balancing support assembly 22 adjusts the balance state of the frame body 1.

[0056] In the disclosed embodiment, the upper plate type structure and the lower plate type structure can be fixedly connected to the frame body 1 and the first end of the bottom frame structure respectively, or the coil spring 2232 can be pressurized to be clamped at the frame body 1 and the first end of the bottom frame structure in a compressed state.

[0057] In the disclosed embodiment, coil spring 2232 is fixed between upper plate assembly 2231 and lower plate assembly 2233. Based on the expansion and contraction of coil spring 2232, upper plate assembly 2231 and lower plate assembly 2233 can move relative to each other, thereby adjusting the balance of vehicle frame 1. Coil spring 2232 can be a variable stiffness coil spring, thereby providing a relatively large expansion and contraction amount, thereby ensuring the stability of vehicle frame 1. A vehicle using the support bridge device provided in the disclosed embodiment can effectively ensure vehicle stability while driving, improve vehicle safety, and ensure the personal safety of the driver.

[0058] In order to further increase the stability of the connection between the suspension structure 2 and the frame body 1 and improve the load-bearing strength and support strength of the support bridge device of the embodiment of the present disclosure, a quadrilateral structure bracket 111 and a triangular structure bracket 112 are provided on the frame body 1. The triangular structure bracket 112 is connected to the inside of the quadrilateral structure bracket 111 to reinforce the quadrilateral structure bracket 111, thereby ensuring the overall stability of the frame body 1.

[0059] Figure 8 1 is a schematic structural diagram of a vehicle frame body 1 according to an exemplary embodiment of the present disclosure.

[0060] Specifically, the vehicle frame body 1 includes a first frame body 11 and a second frame body 12. The first frame body 11 includes a frame structure support and a reinforcement structure support. The reinforcement structure support is connected to the interior of the frame structure support and is used to reinforce the frame structure support. The second frame body 12 is symmetrically connected to the first frame body 11. Furthermore, the frame structure support includes a quadrilateral structure support 111 and a triangular structure support 112. The quadrilateral structure support 111 is formed by connecting the first symmetrical structure support and the second symmetrical structure support. The triangular structure support 112 is connected to the interior of the quadrilateral structure support 111. The two base corners of the triangular structure support 112 are respectively located on the first symmetrical structure support, and the top corner of the triangular structure support 112 is located on the second symmetrical structure support. The second frame body 12 is symmetrically connected to the first symmetrical structure support. The arc structure 121 is provided on the second frame body 12. The first end 221 of the balancing support assembly is fixedly connected to the first end of the underframe structure, and the second end 222 of the balancing support assembly is connected to the second frame body 12.

[0061] Furthermore, the quadrilateral structure bracket 111 includes a first bracket 1111, a second bracket 1112, a third bracket 1113, and a fourth bracket 1114. The first bracket 1111 and the third bracket 1113 form a first symmetrical structure bracket, the second bracket 1112 and the fourth bracket 1114 form a second symmetrical structure bracket, and the suspension structure member 2 is symmetrically connected to the lower sides of the first bracket 1111 and the third bracket 1113, respectively.

[0062] The arcuate structure 121 is used to accommodate the tire, and the wheel seat structure 24 is used to mount the wheel end assembly. The tire is mounted on the wheel end assembly. The wheel seat structure 24 is symmetrically arranged on the outer side of the chassis structure 21. To ensure that the chassis structure 21 is tightly mounted below the first bracket 1111 and the third bracket 1113, grooves 1115 are symmetrically arranged on the sides of the first bracket 1111 and the third bracket 1113 at positions directly opposite the arcuate structure 121. The grooves 1115 are used to accommodate the wheel seat structure 24. The space in the grooves facilitates the installation and removal of the wheel end assembly, thereby achieving a tight connection between the chassis structure 21 and the first bracket 1111 and the third bracket 1113.

[0063] In the disclosed embodiment, the first bracket 1111 and the third bracket 1113 are composed of two bracket rods, and the groove 1115 is provided on the outer bracket rod. The structure of the first bracket 1111 and the structure of the third bracket 1113 are not limited to this. For example, the first bracket 1111 and the third bracket 1113 can be a single wider bracket rod, and the groove 1115 is provided on the outer side of the bracket rod to maximize the space utilization of the wheel seat structure 24 and ensure that the base frame structure 21 is tightly connected to the first bracket 1111 and the third bracket 1113 respectively.

[0064] Furthermore, triangular structure support 112 is composed of a first fixing rod 1121, a second fixing rod 1122, and a third fixing rod 1123. First fixing rod 1121 connects first support 1111 and third support 1113, second fixing rod 1122 connects first support 1111 and second support 1112, and third fixing rod 1123 connects second support 1112 and third support 1113. First fixing rod 1121, second fixing rod 1122, and third fixing rod 1123 form the two base corners of triangular structure support 112, respectively. Second fixing rod 1122 and third fixing rod 1123 form the apex corner of triangular structure support 112. That is, the two base corners of triangular structure support 112 are located on the first symmetrical structure support formed by first support 1111 and third support 1113, while the apex corner of triangular structure support 112 is located on second support 1112 of the second symmetrical structure support formed by second support 1112 and fourth support 1114.

[0065] In the embodiment of the present disclosure, the quadrilateral structure bracket 111 is composed of a first bracket 1111, a second bracket 1112, a third bracket 1113 and a fourth bracket 1114. In order to further increase the stability of the quadrilateral structure bracket 111, reinforcement components are added at the connection between the first bracket 1111 and the third bracket 1113 and the second bracket 1112 respectively.

[0066] Specifically, the second bracket 1112 includes two first connecting rods 113, at least four second connecting rods 114, and two third connecting rods 115. The two first connecting rods 113 are arranged in parallel, and the second connecting rods 114 are arranged in parallel and at equal intervals along the length of the first connecting rods 113. The second connecting rods 114 are perpendicular to the first connecting rods 113 and connect the two first connecting rods 113, thereby forming the second bracket 1112. The first connecting portion 213 and the second connecting portion 214 on the base frame structure 21 are respectively connected to the second connecting rods 114. It should be noted that the number of second connecting rods 114 can be four or more, for example, five. The second connecting rods 114 are not only fixedly connected to the first connecting portion 213 and the second connecting portion 214, but also serve to reinforce the second bracket 1112. The greater the number of second connecting rods 114, the greater the structural stability of the second bracket 1112.

[0067] Furthermore, a notch 2133 is provided on the first connecting portion 213 of the underframe structure 21. The third connecting rod 115 is used to respectively reinforce the connection between the first bracket 1111 and the third bracket 1113 and the second bracket 1112. The first end of the third connecting rod 115 passes through the notch 2133 and is connected to the middle portion of the second connecting rod 114, and the second end of the third connecting rod 115 is connected to the first bracket 1111. Thus, when the supporting bridge device of the embodiment of the present disclosure is loaded with a vehicle body, the vehicle body exerts downward pressure on the first bracket 1111, the second bracket 1112, and the third bracket 1113. The third connecting rod 115 provides upward support force to the first bracket 1111, the second bracket 1112, and the third bracket 1113 at the connection points, thereby reinforcing the connection between the first bracket 1111 and the third bracket 1113 and the second bracket 1112, respectively, and improving the overall stability of the quadrilateral structure bracket 111.

[0068] To sum up, the supporting bridge device provided by the embodiment of the present disclosure can reduce its own weight as a whole, increase the vehicle passage space, facilitate the boarding and disembarking of passengers or the loading and unloading of cargo, improve passenger riding comfort or increase the quantity or weight of loaded cargo, and has a simple structure, is easy to assemble, and has good stability, which can ensure the safety of vehicle driving and the personal safety of the driver.

[0069] It is understood that in this disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of related objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0070] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0071] It can be further understood that the terms "center", "longitudinal", "lateral", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

[0072] It is further understood that, unless otherwise specified, “connection” includes a direct connection where there are no other components between the two elements, and also includes an indirect connection where there are other elements between the two elements.

[0073] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0074] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0075] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. Support bridge device, characterized in that, include: A frame body, wherein an outer side surface of the frame body is symmetrically provided with an arc-shaped structure capable of accommodating a tire; and a suspension structure, wherein the suspension structure is symmetrically connected to the lower side of the frame body, the suspension structure includes a chassis structure, a balancing support assembly, a shock absorbing device, and a wheel seat structure, wherein a first end of the balancing support assembly and a first end of the shock absorbing device are respectively connected to the first end of the chassis structure, and a second end of the balancing support assembly and a second end of the shock absorbing device are respectively connected to the frame body; The wheel seat structure is arranged on the outer side of the chassis structure, and the wheel seat structure is used to install the wheel end assembly; The second end of the chassis structure is connected to the frame body; The second end of the chassis structure is provided with a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are respectively connected to the frame body; A notch is provided on the first connecting portion; The chassis structure includes a first suspension and a second suspension; The first end of the first suspension is connected to the first end of the second suspension to form the first end of the chassis structure; The first connecting portion is provided at the second end of the first suspension, and the second connecting portion is provided at the second end of the second suspension; The chassis structure further includes a connecting component, wherein the connecting component is used to fixedly connect the first suspension and the second suspension; The first suspension, the second suspension, and the connecting component are integrally formed.

2. The supporting bridge device according to claim 1, characterized in that: The frame body includes a first frame body and a second frame body; The first frame body includes a frame structure support and a reinforcement structure support, wherein: The reinforcement structure bracket is connected to the inside of the frame structure bracket, and the reinforcement structure bracket is used to reinforce the frame structure bracket; The second frame body is symmetrically connected to the first frame body, the arc structure is arranged on the second frame body, and the second end of the balancing support assembly is connected to the second frame body.

3. The supporting bridge device according to claim 2, characterized in that: The frame structure support includes a quadrilateral structure support and a triangular structure support, and the triangular structure support is connected to the inside of the quadrilateral structure support; Grooves are symmetrically arranged on the quadrilateral structure bracket at positions opposite to the arc-shaped structure. The grooves are used to accommodate the wheel seat structure and are conducive to the removal of wheel end bolts, making repair and maintenance convenient.

4. The supporting bridge device according to claim 1, characterized in that: The first end of the first connecting portion and the first end of the second connecting portion are respectively hinged to the second end of the underframe structure, and the second end of the first connecting portion and the second end of the second connecting portion are respectively fixedly connected to the frame body.

5. The supporting bridge device according to claim 1, characterized in that: The first end of the first connecting portion and the first end of the second connecting portion are respectively fixedly connected to the second end of the underframe structure, and the second end of the first connecting portion and the second end of the second connecting portion are respectively hinged to the frame body.

6. The supporting bridge device according to claim 1, characterized in that: The balance support component is at least one of an elastic component and an airbag; The elastic component includes an upper plate component, a coil spring and a lower plate component; The upper plate assembly is connected to the frame body; The lower wall assembly is connected to the first end of the chassis structure; The coil spring is fixed between the upper plate assembly and the lower plate assembly. Based on the expansion and contraction of the coil spring, the upper plate assembly and the lower plate assembly can move relative to each other to adjust the balance of the frame body.

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