Multipurpose spoiler structure and tractor

Abstract

The invention relates to the technical field of automobile part design, and discloses a multi-purpose spoiler structure and a tractor. One side of an outer swing type connecting assembly is connected to a cab rear wall plate; the spoiler body comprises a spoiler main framework and a plurality of spoiler sub-plates, and the spoiler main framework is fixedly connected to the other side of the outer swing type connecting assembly; the spoiler body which swings outwards is aligned to a side coaming of a cab and extends backwards, and the spoiler body which swings outwards is forwards spaced from the side coaming of the cab by a certain distance and is parallel to the side coaming of the cab; the spoiler main framework is vertically arranged, each spoiler sub-plate is opened and closed relative to the spoiler main framework, and the spoiler sub-plates in the closed state are tightly connected and arranged in the vertical direction of the spoiler main framework. The spoiler sub-plates in the open state are all turned over to be horizontal and form multiple steps. The invention discloses a multi-purpose spoiler structure and a tractor. The spoiler structure with a spoiler function and a stepping function at the same time is designed.

Description

Technical Field

[0001] This invention relates to the field of automotive component design technology, specifically to a multi-purpose spoiler structure and a tractor. Background Technology

[0002] Currently, heavy-duty truck tractors used for medium- and long-distance highway transportation are widely equipped with side and rear spoilers to reduce wind resistance and improve fuel economy; however, their function is relatively simple. In the conventional spoiler design of heavy-duty truck tractors, side spoilers are classified as fixed or hinged-mounted, depending on whether they can be opened. Their basic structure generally consists of the spoiler body and a spoiler bracket. If the opening is pneumatic, electric, or hydraulically driven, the corresponding pneumatic, electric, or hydraulic drive structure will be added to the design.

[0003] Meanwhile, the step devices on heavy-duty truck tractors are generally concentrated on the front bumper of the cab (located directly in front, containing two steps, mainly used for cleaning the windows) and the lower front part of the side (in front of the cab tires). The steps on the front and lower front parts of the side are generally designed with several steps. Their function is not only to prevent the driver and passengers from jumping directly when getting on and off the vehicle due to its height, which could cause injury, but also to make it easier for the driver and passengers to access these work areas without using an additional ladder when it is necessary to inspect the engine compartment or clean the windshield.

[0004] However, the side spoilers widely used on heavy-duty truck tractors to reduce wind resistance and improve fuel economy have a limited function. At the same time, most tractors do not have steps designed in the area behind the doors (i.e., the rear of the side) and above the front wheel arches. This means that when the driver and passengers need to access these areas (such as manually adjusting the position of the roof spoiler, troubleshooting the roof air intake, adjusting or repairing the shark fin antenna, repairing the sunroof, etc.), they can only reach the required working height by using an additional ladder or work platform. When there is no ladder on the vehicle and it is used in the field, it is inconvenient to quickly meet the needs of accessing these areas. Summary of the Invention

[0005] This application provides a multi-purpose spoiler structure and a tractor vehicle, and designs a spoiler structure that has both spoiler function and step function.

[0006] In a first aspect, embodiments of this application provide a multi-purpose spoiler structure, comprising: An outward-swinging connection assembly, one side of which is connected to the rear bulkhead of the cab; The spoiler body includes a main spoiler frame and several spoiler sub-plates. The main spoiler frame is fixedly connected to the other side of the outward swing connection assembly. Before the outward swing, the spoiler body is aligned with the cab side panel and extends backward. After the outward swing, the spoiler body moves forward a certain distance and is parallel to and spaced apart from the cab side panel. The main spoiler frame is vertically arranged, and each spoiler sub-plate is open and closed relative to the main spoiler frame. Several spoiler sub-plates in the closed state are closely connected and arranged along the vertical direction of the main spoiler frame; several spoiler sub-plates in the open state are flipped to the horizontal and form a multi-step.

[0007] In conjunction with the first aspect, in one embodiment, the mating surfaces of two adjacent spoiler sub-plates are stepped. Each spoiler sub-panel includes a base plate and a step plate, the step plate being tightly fixed to the base plate by bolts; in the outward-swinging and closed state of the spoiler sub-panel, the step plate is closer to the cab side panel than the base plate. Each step plate is equipped with two or more hinge supports and two or more limit supports. Each hinge support is connected to the main frame of the spoiler via a hinge, and each limit support is connected to the main frame of the spoiler via a limit rod.

[0008] In conjunction with the first aspect, in one embodiment, the limiting rod includes two first sub-rods and a second sub-rod that are hinged end to end; The end of the first sub-rod is hinged to the limiting support, and the end of the second sub-rod is hinged to the main frame of the spoiler; when the spoiler sub-plate is in the closed state, the first sub-rod and the second sub-rod are in a folded state; when the spoiler sub-plate is opened to the horizontal, the first sub-rod and the second sub-rod are in a straight line.

[0009] In conjunction with the first aspect, in one embodiment, each of the spoiler sub-plates is provided with a latch; the spoiler body is provided with a locking and unlocking structure, the locking and unlocking structure comprising: The upper return spring is connected at its top to the top of the spoiler's main frame; A vertically arranged locking rod has its top end connected to the bottom end of the upper return spring; the locking rod is provided with several hooks; Two or more perforated supports are arranged vertically and vertically, all fixed to the main frame of the spoiler; the locking rod can slide through all the perforated supports; Each of the spoiler sub-plates in the closed state is locked by the hook; when the locking rod is pulled down, the hook is disengaged from the hook and unlocked.

[0010] In conjunction with the first aspect, in one embodiment, the main frame of the spoiler includes a long rectangular outer frame and a plurality of crossbeams equally spaced inside the long rectangular outer frame, and the top surface of the spoiler sub-plate, when flipped to the horizontal, is flush with the top surface of the corresponding crossbeam. The width of the spoiler sub-plate is greater than the width of the spoiler main frame, and the upper reset spring, locking rod, buckle and hook are all located on the rear side of the spoiler main frame.

[0011] In conjunction with the first aspect, in one embodiment, the locking / unlocking structure further includes: The handle support is located on the side of the main spoiler frame. The operating handle has its middle part fixed to the bottom of the locking rod, and the end of the operating handle is hinged to the handle support; The lower return spring has its two ends fixed to the control handle and the main frame of the spoiler, respectively.

[0012] In conjunction with the first aspect, in one embodiment, the swing-out connection assembly includes: The vehicle body has a support at the end, and its front side is fixed to the upper part of the rear panel of the cab. The lower support at the end of the vehicle body is fixed to the lower part of the rear panel of the cab on its front side. The spoiler end support is fixed on one side to the upper part of the spoiler main frame; The spoiler end support is fixed to the lower part of the main spoiler frame on one side; Two linkage assemblies are provided. One linkage assembly is located between the upper support at the body end and the upper support at the spoiler end, forming a parallelogram linkage structure. The other linkage assembly is located between the lower support at the body end and the lower support at the spoiler end, forming a parallelogram linkage structure.

[0013] In conjunction with the first aspect, in one embodiment, the upper support at the vehicle end and the lower support at the vehicle end are provided with reset rubber stops at the starting point of the swing of their respective linkage assemblies. The upper support and lower support at the vehicle body end are provided with outward swing rubber stops at the end position of the swing of their respective linkage assemblies.

[0014] In conjunction with the first aspect, in one embodiment, a connecting rod reinforcing rod is provided between the two connecting rod assemblies, and a support reinforcing rod is provided between the upper support at the vehicle body end and the lower support at the vehicle body end.

[0015] Secondly, embodiments of this application provide a tractor unit in which the aforementioned multi-purpose spoiler structure is provided on the left and / or right side of the rear bulkhead of the cab.

[0016] The beneficial effects of the technical solutions provided in this application include at least the following: 1. The multi-purpose spoiler structure of this application, by setting an outward swing connection assembly and a spoiler body with a specific structure, the spoiler body before the outward swing is aligned with the side panel of the cab and extends backward, at which time it is in the spoiler position, and several spoiler sub-plates in the closed state are closely connected and arranged along the vertical direction of the main spoiler frame, thus having the function of a spoiler; the spoiler body after the outward swing moves forward a certain distance and is parallel to the side panel of the cab, reaching a position that facilitates stepping, and several spoiler sub-plates in the open state flip to the horizontal and form a multi-level step for climbing, thus having the function of stepping. The multi-purpose spoiler structure of this application has both spoiler function and stepping function, solving the problem that the tractor vehicle has no step design in the area behind the door (i.e., the rear of the side face) and above the front wheel arch but has a need for climbing. More importantly, it does not add a new structure but improves on the basis of the side and rear spoiler, which is both multi-purpose and saves money and space.

[0017] 2. The multi-purpose spoiler structure of this application has a buckle on the spoiler sub-plate and a locking and unlocking structure on the spoiler body. The buckles of each spoiler sub-plate in the closed state are hooked and locked by the hook of the locking rod. The multi-purpose spoiler structure functions as a spoiler. When the locking rod is pulled down, the buckle is disengaged from the hook and unlocked. Each spoiler sub-plate can be flipped to the horizontal and form a multi-step. The multi-purpose spoiler structure also functions as a ladder and a work platform.

[0018] 3. The multi-purpose spoiler structure of this application has a top surface of the spoiler sub-plate that is flush with the top surface of the corresponding crossbeam when flipped to the horizontal position. This means that the crossbeam can increase the stepping area of ​​the spoiler sub-plate. The return spring, locking rod, latch and hook are all set on the rear side of the spoiler main frame, which can realize the locking and unlocking that can be opened and closed, and can avoid occupying the space between the spoiler body and the spoiler main frame, thus making efficient and reasonable use of space. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the upper structure (outward swing state) of the multi-purpose spoiler of this application; Figure 2 This is a schematic diagram of the upper structure (reset state) of the multi-purpose spoiler of this application; Figure 3 This is a schematic diagram of the lower structure (outward swing state) of the multi-purpose spoiler of this application; Figure 4This is a schematic diagram of the lower structure (reset state) of the multi-purpose spoiler of this application; Figure 5 This is a schematic diagram of the locking and unlocking mechanism of the spoiler body of this application; Figure 6 This is a schematic diagram of the structure of a single spoiler sub-plate flipped into a stepping state according to this application; Figure 7 This is a schematic diagram of the structure of the multi-purpose spoiler of this application; Figure 8 This is a top view of the multi-purpose spoiler in its reset and outward swing states according to this application; In the picture: 10. Upper support at the vehicle body end; 101. First bolt; 102. Second bolt; 105. Reset rubber stop; 106. Outward swing rubber stop; 20. Lower support at the vehicle body end; 30. Upper support at the spoiler end; 40. Lower support at the spoiler end; 50. First connecting rod; 60. Second connecting rod; 90. Spoiler body; 95. Spoiler sub-plate; 951. Base plate; 952. Step plate; 954. Hinge support; 955. Limiting support; 956. Lock; 92 4. Limiting rod; 9241. First sub-rod; 9242. Second sub-rod; 110. Connecting rod reinforcing rod; 151. Operating handle; 152. Locking rod; 153. Upper return spring; 154. Lower return spring; 700. Support reinforcing rod; 900. Rear panel of cab; 901. Side panel of cab; 910. Spoiler main frame; 911. Long rectangular outer frame; 912. Crossbeam; 913. Hinge; 915. Opening support; 916. Handle support. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0022] This application achieves the goal of adding a step function to the side and rear spoiler by innovatively designing the spoiler structure, while maintaining the original functions of the side and rear spoiler such as reducing wind resistance and improving fuel economy. This solves the problem that the area behind the door and above the front wheel arch lacks a step, which means that when the driver and passengers need to climb in this area (such as manually adjusting the position of the roof spoiler or dealing with the fault of the roof air intake), they can only reach the required working height with the help of an additional ladder or work platform.

[0023] This application presents a multi-purpose spoiler structure that combines spoiler and step functions. The multi-purpose spoiler structure refers to a side and rear spoiler for the cab, primarily used in the following scenarios where the step function is required: ① when the shark fin antenna on the cab roof needs adjustment or replacement; ② when the engine air intake (located on the cab roof) malfunctions; ③ when the cab roof spoiler needs adjustment; ④ when the cab roof sunroof needs inspection. The accompanying drawings in this application use the left rear spoiler as an example.

[0024] Firstly, such as Figures 1 to 8 As shown, this application discloses an embodiment of a multi-purpose spoiler structure, which includes an outward-swinging connection assembly and a spoiler body 90.

[0025] One side of the outward-swinging connection assembly is connected to the rear bulkhead 900 of the cab, and the other side is connected to the spoiler body 90. The function of the outward-swinging connection assembly is to enable the spoiler body 90 to both be flush with the side bulkhead 901 of the cab as a spoiler and to swing forward and outward at intervals parallel to the side bulkhead 901 of the cab as a step for climbing.

[0026] The spoiler body 90 includes a main spoiler frame 910 and several spoiler sub-plates 95. The main spoiler frame 910 is fixedly connected to the other side of the outward-swinging connection assembly. Before the outward swing, the spoiler body 90 is aligned with the cab side panel 901 and extends rearward. After the outward swing, the spoiler body 90 moves forward a certain distance and is parallel to and spaced apart from the cab side panel 901. Specifically, before the outward swing, the spoiler body 90 is aligned with the cab side panel 901, meaning the surface of the spoiler body 90 and the surface of the cab side panel 901 are on the same plane. After the outward swing, the spoiler body 90 moves forward a certain distance, the distance of which is determined by the structural design.

[0027] The main spoiler frame 910 is vertically arranged, and each spoiler sub-plate 95 is open and closed relative to the main spoiler frame 910. Several spoiler sub-plates 95 in the closed state are closely connected and arranged along the vertical direction of the main spoiler frame 910; several spoiler sub-plates 95 in the open state are flipped to the horizontal and form multi-level steps for climbing.

[0028] Preferably, the spoiler body 90 is composed of five spoiler sub-plates 95 arranged closely together in the vertical direction. Each spoiler sub-plate 95 is approximately rectangular.

[0029] Specifically, the spoiler sub-board 95 can be normally closed and opened both before and after the spoiler body 90 swings outward, so as to adapt to more usage scenarios and make it more flexible in use.

[0030] The multi-purpose spoiler structure of this application, by setting an outward-swinging connecting assembly and a spoiler body 90 with a specific structure, has the spoiler body 90 aligned with the cab side panel 901 and extending rearward before the outward swing, at which point it is in the spoiler position, and several closed spoiler sub-panels 95 are tightly connected and arranged along the spoiler main frame 910 in the vertical direction, thus having the function of a spoiler; after the outward swing, the spoiler body 90 moves forward a certain distance and is parallel to and spaced apart from the cab side panel 901, reaching a position that facilitates stepping, and several open spoiler sub-panels 95 flip to the horizontal and form a multi-level step for climbing, thus having the function of a step. The multi-purpose spoiler structure of this application has both spoiler function and stepping function, solving the problem that the area behind the door (i.e., the rear of the side face) and above the front wheel arch of the tractor vehicle does not have a step design but has a need for climbing. More importantly, it does not add a new structure but improves on the basis of the side and rear spoiler, which is both multi-purpose and saves money and space.

[0031] like Figure 5 and Figure 6 As shown, in one embodiment, the mating surfaces of two adjacent spoiler sub-plates 95 are stepped to improve the quality of gap perception between the sub-plates and prevent the gap from being transparent.

[0032] Each spoiler sub-panel 95 includes a base plate 951 and a step plate 952, with the step plate 952 securely attached to the base plate 951 by bolts. In the outward-swinging and closed state of the spoiler sub-panel 95, the step plate 952 is closer to the cab side panel 901 than the base plate 951. When the spoiler sub-panel 95 is flipped open, the step plate 952 faces upwards.

[0033] Each step plate 952 is equipped with two or more hinge supports 954 and two or more limit supports 955. Each hinge support 954 is connected to the main spoiler frame 910 via a hinge 913, and each limit support 955 is connected to the main spoiler frame 910 via a limit rod 924. Specifically, the hinge support 954 is connected to the elongated rectangular outer frame 911 of the main spoiler frame 910 via a hinge 913, and the limit support 955 is connected to the elongated rectangular outer frame 911 of the main spoiler frame 910 via a limit rod 924.

[0034] Specifically, the hinge support 954 is located at the bottom edge of the step plate 952, and the limiting support 955 is located at the top edge of the step plate 952. The hinge 913 provides short-term limiting for the spoiler sub-plate 95, and the limiting support 955 provides long-term limiting for the spoiler sub-plate 95. The cooperation of two or more hinge supports 954 and two or more limiting supports 955 ensures that the spoiler sub-plate 95 can remain horizontal after being flipped.

[0035] The multi-purpose spoiler structure of this application has two or more hinge supports 954 and two or more limit supports 955 working together so that the spoiler sub-plate 95 can remain horizontal after being flipped, providing a foundation for the flipping structure of the step.

[0036] Specifically, the spoiler subplate consists of a substrate made of SMC (Sheet Molding Compound) and an aluminum alloy step plate.

[0037] like Figure 6 and Figure 7 As shown, the limiting rod 924 further includes two first sub-rods 9241 and second sub-rods 9242 that are hinged end to end. The end of the first sub-rod 9241 is hinged to the limiting support 955, and the end of the second sub-rod 9242 is hinged to the spoiler main frame 910.

[0038] When the spoiler subplate 95 is in the closed state, the first sub-rod 9241 and the second sub-rod 9242 are in a folded state; when the spoiler subplate 95 is in the open to the horizontal state, the first sub-rod 9241 and the second sub-rod 9242 are in a straight line.

[0039] The main function of the limit rod 924 is to ensure that after the spoiler sub-plate 95 is flipped open, it can remain in a horizontal position parallel to the ground, so that the spoiler body 90 can also be used as a climbing and working platform.

[0040] like Figure 5 and Figure 7 As shown, in one embodiment, each spoiler sub-plate 95 is provided with a latch 956. Specifically, in the outward-swinging and closed state of the spoiler sub-plate 95, the latch 956 faces the driver's cab.

[0041] The spoiler body 90 is equipped with a locking and unlocking structure, which includes an upper return spring 153, a locking rod 152, and an opening support 915.

[0042] The top end of the upper return spring 153 is connected to the top of the spoiler main frame 910.

[0043] The locking rod 152 is set vertically, and the top end of the locking rod 152 is connected to the bottom end of the upper return spring 153. The locking rod 152 is provided with several hooks.

[0044] Two or more perforated supports 915 are arranged vertically in a straight line, and both or more perforated supports 915 are fixed to the main frame of the spoiler 910. The locking rod 152 can slide through all the perforated supports 915.

[0045] Each spoiler panel 95 in its closed state has its latches 956 engaged and locked by hooks. When the locking lever 152 is pulled down, the latches 956 of each spoiler panel 95 disengage from their respective hooks and are unlocked. At this time, an external force is applied to the lower part of the spoiler panel 95, which completes the flipping operation of the spoiler panel 95.

[0046] Preferably, the top end of the upper return spring 153 can also be connected to an extension structure at the top of the spoiler main frame 910.

[0047] The multi-purpose spoiler structure of this application has a spoiler sub-plate 95 equipped with a latch 956 and a spoiler body 90 equipped with a locking and unlocking structure. The latches 956 of each spoiler sub-plate 95 in the closed state are hooked and locked by the hook of the locking rod 152. The multi-purpose spoiler structure functions as a spoiler. When the locking rod 152 is pulled down, the latches 956 are disengaged from the hook and unlocked. Each spoiler sub-plate 95 can be flipped to the horizontal and form a multi-step. The multi-purpose spoiler structure also functions as a ladder and a work platform.

[0048] Specifically, the latch 956 is installed on the step plate 952.

[0049] like Figure 6 and Figure 7 As shown, the spoiler main frame 910 further includes a long rectangular outer frame 911 and several crossbeams 912 evenly spaced inside the long rectangular outer frame 911. The crossbeams 912 divide the long rectangular outer frame 911 into several rectangular sub-frames, the number of which is equal to the number of spoiler sub-plates 95. When flipped to a horizontal position, the top surface of the spoiler sub-plate 95 is flush with the top surface of the corresponding crossbeam 912.

[0050] The width (i.e., the front-to-back dimension) of the spoiler sub-plate 95 is greater than the width of the spoiler main frame 910. The upper return spring 153, locking rod 152, and opening support 915 are all located on the rear side of the spoiler main frame 910. The hook and latch 956 cooperate on the rear side of the spoiler main frame 910, which can not only complete the opening and closing hook connection, but also reduce space occupation and make efficient and reasonable use of space.

[0051] The multi-purpose spoiler structure of this application has a top surface of the spoiler sub-plate 95 that is flipped to the horizontal and flush with the top surface of the corresponding crossbeam 912, which means that the crossbeam 912 can increase the stepping area of ​​the spoiler sub-plate 95. The upper return spring 153, locking rod 152, lock buckle 956 and hook are all set on the rear side of the spoiler main frame 910, which can realize the locking and unlocking that can be opened and closed, and avoid occupying the space between the spoiler body 90 and the spoiler main frame 910, thus making efficient and reasonable use of space.

[0052] In one example, the main spoiler frame 910 includes four crossbeams 912, and the spoiler body 90 has five spoiler sub-plates 95. Each spoiler sub-plate 95 is connected and limited by two hinges 913 and two limit rods to realize the flipping function of the spoiler sub-plate 95.

[0053] In one embodiment, the locking / unlocking structure further includes a handle support 916, an operating handle 151, and a lower return spring 154.

[0054] The handle support 916 is located on the side of the spoiler main frame 910.

[0055] The middle part of the operating handle 151 is fixed to the bottom of the locking rod 152, and the end of the operating handle 151 is hinged to the handle support 916.

[0056] The two ends of the lower return spring 154 are fixed to the control handle 151 and the spoiler main frame 910, respectively.

[0057] The multi-purpose spoiler structure of this application features a handle support 916 for easy unlocking, and a lower reset spring 154 and an upper reset spring 153 for easy reset after unlocking.

[0058] like Figures 1-4 As shown, in one embodiment, the outward-swinging connection assembly includes an upper body support 10, a lower body support 20, an upper spoiler support 30, a lower spoiler support 40, and a linkage assembly.

[0059] The vehicle body end support 10 is rectangular, and its front side is fixed to the upper part of the rear panel 900 of the cab.

[0060] Specifically, the body of the upper support 10 at the vehicle end has a C-shaped cross-section, and the front side of the upper support 10 at the vehicle end is fixedly connected to the rear panel 900 of the cab by the first bolt 101. The upper support 10 at the vehicle end has a φ10.2 circular hole on each of its left and rear sides. Two second bolts 102 pass through these two holes to position and fasten the first connecting rod 50 and the second connecting rod 60 located between the upper support 10 at the vehicle end and the upper support 30 at the spoiler end. The lower support 20 at the end of the vehicle body is C-shaped (top view), and its front side is fixed to the lower part of the rear panel 900 of the cab.

[0061] Specifically, the top view of the lower support 20 at the vehicle end is C-shaped, and the cross-section of the lower support 20 at the vehicle end is also C-shaped. The front end face of the lower support 20 at the vehicle end fits against the lower part of the rear panel 900 of the cab and is fastened with bolts. The left side and the rear side of the lower support 20 at the vehicle end are each designed with a φ10.2 circular hole. Two second bolts 102 pass through these two holes to position and fasten the first connecting rod 50 and the second connecting rod 60 located between the lower support 20 at the vehicle end and the lower support 40 at the spoiler end.

[0062] One side of the spoiler end support 30 is fixed to the upper part of the spoiler main frame 910. Specifically, the spoiler end support 30 is a right-angled trapezoid, and the body cross-section of the spoiler end support 30 is C-shaped. The long rectangular side of the long rectangular outer frame 911 passes through the upper and lower surfaces of the C-shaped cross-section of the spoiler end support 30, and the junction is connected by an arc weld. The upper and lower surfaces of the spoiler end support 30 are each designed with a φ10.2 circular hole, and the first connecting rod 50 and the second connecting rod 60 located between the body end support 10 and the spoiler end support 30 are positioned and fastened with two second bolts 102.

[0063] One side of the spoiler end support 40 is fixed to the lower part of the spoiler main frame 910.

[0064] Specifically, the spoiler end support 40 is also a right-angled trapezoid, and the body cross-section of the spoiler end support 40 is C-shaped. The long rectangular side of the long rectangular frame 911 passes through the upper and lower surfaces of the C-shaped cross-section of the spoiler end support 40, and the junction is connected by an arc weld. The upper and lower surfaces of the spoiler end support 40 are each designed with a φ10.2 circular hole, and the first connecting rod 50 and the second connecting rod 60 located between the body end support 20 and the spoiler end support 40 are positioned and fastened with two second bolts 102.

[0065] Two linkage assemblies are provided. One linkage assembly is located between the upper support 10 at the vehicle end and the upper support 30 at the spoiler end, forming a parallelogram linkage structure. The other linkage assembly is located between the lower support 20 at the vehicle end and the lower support 40 at the spoiler end, forming a parallelogram linkage structure. The two parallelogram linkage structures form the basis of the outward-swinging connection assembly.

[0066] Specifically, the linkage assembly includes a first linkage 50 and a second linkage 60. Both the first linkage 50 and the second linkage 60 have an H-shaped linkage structure. The H-shaped linkage structure consists of a long rod with a square hole in the middle and short bushings on both sides. The two vertical bushings are welded to the long rod with the square hole in the middle. One bushing is fixed to the upper support 10 or the lower support 20 of the vehicle body end by a second bolt 102 and can rotate around the vertical axis. The other bushing is fixed to the upper support 30 of the spoiler end by a second bolt 102 and can also rotate around the vertical axis. Specifically, the second bolt 102 passes through the bushing to form a rotating structure.

[0067] The multi-purpose spoiler structure of this application includes two linkage assemblies. One linkage assembly is located between the upper support 10 at the vehicle end and the upper support 30 at the spoiler end, forming a parallelogram linkage structure. The other linkage assembly is located between the lower support 20 at the vehicle end and the lower support 40 at the spoiler end. The two parallelogram linkage structures form the basis of the outward swing connection assembly and act as a hinge between the rear bulkhead 900 of the cab and the spoiler body 90, realizing the outward swing opening and closing function of the spoiler body 90.

[0068] Furthermore, the upper support 10 and the lower support 20 at the vehicle body end are provided with reset rubber stops 105 at the starting point of the swing of their respective linkage assemblies.

[0069] The upper support 10 and the lower support 20 at the vehicle body end are provided with outward swing rubber stops 106 at the end position of the swing of their respective linkage assemblies.

[0070] The reset rubber stop 105 and the outward swing rubber stop 106 are used to limit the start and end positions of the linkage assembly rotation, corresponding to the initial position before the outward swing of the spoiler body 90 and the end position after the outward swing, respectively.

[0071] Furthermore, a connecting rod reinforcing rod 110 is provided between the two connecting rod assemblies, and a support reinforcing rod 700 is provided between the upper support 10 at the vehicle end and the lower support 20 at the vehicle end.

[0072] Specifically, the linkage assembly includes a first link 50 and a second link 60. A link reinforcing rod 110 is provided between the first links 50 of the two linkage assemblies, and a second link reinforcing rod 110 is provided between the second links 60 of the two linkage assemblies.

[0073] Secondly, this application also discloses a tractor unit in which the aforementioned multi-purpose spoiler structure is provided on the left and / or right side of the rear bulkhead of the cab.

[0074] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0075] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0076] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A multi-purpose spoiler structure, characterized in that, Include: An outward-swinging connection assembly is connected on one side to the rear bulkhead of the cab (900). The spoiler body (90) includes a main spoiler frame (910) and a few spoiler sub-plates (95). The main spoiler frame (910) is fixedly connected to the other side of the outward swing connection assembly. Before the outward swing, the spoiler body (90) is aligned with the cab side panel (901) and extends backward. After the outward swing, the spoiler body (90) moves forward a certain distance and is parallel to the cab side panel (901). The main spoiler frame (910) is vertically arranged, and each spoiler sub-plate (95) is open and closed relative to the main spoiler frame (910). Several spoiler sub-plates (95) in the closed state are closely connected and arranged along the vertical direction of the main spoiler frame (910); several spoiler sub-plates (95) in the open state are flipped to the horizontal and form multi-level steps.

2. The multi-purpose spoiler structure as described in claim 1, characterized in that: The mating surfaces of two adjacent spoiler sub-plates (95) are stepped; Each spoiler sub-plate (95) includes a base plate (951) and a step plate (952), wherein the step plate (952) is fixed to the base plate (951) by bolts; in the spoiler sub-plate (95) in the outward swing and closed state, the step plate (952) is closer to the cab side panel (901) than the base plate (951). Each step plate (952) is equipped with two or more hinge supports (954) and two or more limit supports (955). Each hinge support (954) is connected to the main frame of the spoiler (910) via a hinge (913), and each limit support (955) is connected to the main frame of the spoiler (910) via a limit rod (924).

3. The multi-purpose spoiler structure as described in claim 2, characterized in that: The limiting rod (924) includes two first sub-rods (9241) and second sub-rods (9242) that are hinged end to end. The end of the first sub-rod (9241) is hinged to the limiting support (955), and the end of the second sub-rod (9242) is hinged to the main frame of the spoiler (910). When the spoiler sub-plate (95) is in the closed state, the first sub-rod (9241) and the second sub-rod (9242) are in a folded state. When the spoiler sub-plate (95) is in the open to the horizontal position, the first sub-rod (9241) and the second sub-rod (9242) are in a straight line.

4. The multi-purpose spoiler structure as described in claim 1, characterized in that, Each of the aforementioned spoiler sub-plates (95) is provided with a latch (956); the spoiler body (90) is provided with a locking and unlocking structure, the locking and unlocking structure comprising: The upper return spring (153) is connected at its top to the top of the spoiler main frame (910); A vertically arranged locking rod (152) has its top end connected to the bottom end of the upper return spring (153); the locking rod (152) is provided with several hooks; Two or more vertically arranged perforated supports (915) are fixed to the main frame of the spoiler (910); the locking rod (152) can slide through all the perforated supports (915). Each of the closed spoiler sub-plates (95) has its latch (956) hooked and locked by the hook; when the locking rod (152) is pulled down, the latch (956) is disengaged from the hook and unlocked.

5. The multi-purpose spoiler structure as described in claim 4, characterized in that: The main frame (910) of the spoiler includes a long rectangular outer frame (911) and several crossbeams (912) evenly spaced inside the long rectangular outer frame (911). The top surface of the spoiler sub-plate (95) flipped to the horizontal is flush with the top surface of the corresponding crossbeam (912). The width of the spoiler sub-plate (95) is greater than the width of the spoiler main frame (910), and the upper reset spring (153), locking rod (152), buckle (956) and hook are all located on the rear side of the spoiler main frame (910).

6. The multi-purpose spoiler structure as described in claim 4, characterized in that, The locking / unlocking structure further includes: The handle support (916) is located on the side of the main frame (910) of the spoiler; The operating handle (151) is fixed at the bottom of the locking rod (152) at its middle part, and the end of the operating handle (151) is hinged to the handle support (916). The lower return spring (154) is fixed at both ends to the control handle (151) and the spoiler main frame (910).

7. The multi-purpose spoiler structure as described in claim 1, characterized in that, The external swing-type connection assembly includes: The vehicle body end support (10) is fixed to the upper part of the rear panel (900) of the cab on its front side; The lower support (20) at the end of the vehicle body is fixed to the lower part of the rear panel (900) of the cab on its front side; The spoiler end support (30) is fixed on one side to the upper part of the spoiler main frame (910); The spoiler end support (40) is fixed on one side to the lower part of the spoiler main frame (910); Two linkage assemblies are provided. One linkage assembly is located between the upper support (10) at the end of the vehicle body and the upper support (30) at the end of the spoiler, forming a parallelogram linkage structure. The other linkage assembly is located between the lower support (20) at the end of the vehicle body and the lower support (40) at the end of the spoiler, forming a parallelogram linkage structure.

8. The multi-purpose spoiler structure as described in claim 7, characterized in that: The upper support (10) and lower support (20) at the vehicle body end are provided with reset rubber stops (105) at the starting point of the swing of their respective linkage assemblies. The upper support (10) and lower support (20) at the vehicle body end are provided with outward swing rubber stops (106) at the end position of the swing of their respective linkage assemblies.

9. A multi-purpose spoiler structure as described in claim 7, characterized in that: A connecting rod reinforcing rod (110) is provided between the two connecting rod assemblies, and a support reinforcing rod (700) is provided between the upper support (10) at the vehicle body end and the lower support (20) at the vehicle body end.

10. A tractor unit, characterized in that: The left and / or right sides of the rear bulkhead of the cab are provided with the multi-purpose spoiler structure as described in claims 1 to 9.

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