Non-metal step locking structure of commercial vehicle

Abstract

The invention discloses a non-metal step locking structure of a commercial vehicle. A base plate is formed by SMC (Sheet Molding Compound) compression molding, is positioned at the front wheel position at the bottom of a cockpit and also serves as an upper step. The middle of the base plate is concave, a front wheel fender is arranged on one side of the base plate, and a concave area is divided into an upper part and a lower part by a horizontal protrusion to form two steps. An inner side hidden type locking structure is mounted on an upper concave part, and is linked with the one-to-two inhaul cable structure through a speed reduction inhaul cable fixing device on the BOSS column to control a tool box door and a front face shield to be opened and closed; the infrared sensing assembly monitors the closing state of the automobile door, the toolbox door and the radiator grille in real time and feeds back the closing state to the instrument panel. In addition, the locking structure mounting area is thickened, the stability is enhanced by matching with an annular reinforcing limiting bulge, the step is provided with a reinforcing rib and a drainage hole, and the base plate adopts a local material reducing and thickening design. The structure integrates the functions of stepping, burglary prevention, multi-component control and the like, the burglary prevention performance and operation convenience are improved, and the balance of structural strength and light weight is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of commercial vehicle parts, and in particular to a non-metallic step locking structure for a commercial vehicle. Background Art

[0002] In the commercial vehicle sector, the side panels at the bottom of the cockpit, at the front wheel position, typically serve as a stepping stone for boarding and provide protection. However, existing technologies have numerous shortcomings: First, conventional locking structures are often exposed and easily damaged by external forces, resulting in poor door anti-theft performance and theft risks for the vehicle and its contents. Second, the control of the vehicle's toolbox door and front hood often utilizes independent structures, resulting in complex wiring, inconvenient operation, and a lack of interoperability between components, increasing failure rates and repair costs. Third, there is no way to monitor and provide feedback on the closing status of the vehicle door, toolbox door, and front hood in real time, making it difficult for the driver to determine whether each component is fully closed, posing a safety hazard. Fourth, conventional side panel structures lack lightweight design, either lacking structural strength or being too heavy, failing to achieve a good balance between strength and lightweight.

[0003] Therefore, there is an urgent need for a non-metallic step locking structure for commercial vehicles that can solve the above problems, so as to improve the safety, convenience and economy of commercial vehicles. Summary of the Invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a non-metallic step locking structure for a commercial vehicle.

[0005] The present invention proposes a non-metallic step locking structure for commercial vehicles, comprising a base plate, which is molded from a composite material SMC and is located at the front wheel position at the bottom of the cab to form an upper step;

[0006] The middle portion of the base plate is concave inward, and a front wheel fender is provided on one side of the concave region; a horizontal protrusion is provided in the middle portion of the concave region, and the protrusion divides the concave region into two concave portions, the upper concave region being deeper than the lower concave region, the bottom side of the lower concave region being a first step, and the bottom side of the upper concave region being a second step;

[0007] The upper concave portion is provided with a locking structure, and when the door is closed, the locking structure is located on the inner side of the door;

[0008] A BOSS column is provided on the back of the base plate, and a deceleration cable fixing device is installed on the BOSS column. The locking structure and the deceleration cable fixing device can be linked by a steel wire. The deceleration cable fixing device is connected to a one-to-two cable structure for controlling the tool box door and the front cover switch;

[0009] A mutual sensing device is provided at the upper concave area, and the mutual sensing device is used to sense whether the vehicle door is closed and display the closing information of the vehicle door, tool box door and front cover on the cab dashboard.

[0010] Preferably, the thickness of the installation area of ​​the locking structure is thickened, and an annular reinforcement limiting protrusion is provided on the back side of the locking structure, and the annular reinforcement limiting protrusion is used to fix the locking structure.

[0011] Preferably, a plurality of groups of reinforcing ribs are provided on the bottom of the back side of the bearing surface of the first step and the second step.

[0012] Preferably, the substrate adopts a local material reduction and thickening design, reducing material in non-stress critical areas and thickening in stress concentration areas to achieve a balance between structural strength and lightweight.

[0013] Preferably, drainage holes are provided on the bearing surfaces of the first step and the second step.

[0014] Preferably, the mutual sensing device includes an infrared sensing component arranged on the vehicle door and the substrate. The infrared sensing component determines whether the vehicle door is opened or closed by detecting infrared ray blocking conditions and feeds back the signal to the dashboard of the cab.

[0015] The present invention proposes a non-metallic step locking structure for commercial vehicles, which has the following beneficial effects:

[0016] The anti-theft performance is significantly improved. The locking structure is located on the inside of the door and, combined with the annular reinforced limit protrusion, effectively prevents external damage and ensures the safety of the vehicle and its interior.

[0017] The locking structure realizes one-to-two control of the tool box door and the front cover through steel wire linkage, which simplifies the operation process, reduces the number of independent components, and reduces the failure rate and maintenance costs.

[0018] The mutual sensing device senses the closing status of the vehicle doors, tool box door and front hood in real time, and feeds back the information to the cab dashboard, allowing the driver to grasp it in time and avoid safety hazards caused by parts not being closed.

[0019] The reinforcement ribs, local material reduction and thickening design, and the setting of drainage holes ensure structural strength while achieving lightweight, improving vehicle economy and extending component service life.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the back side of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the back side of the present invention;

[0025] Explanation of the numbers in the figure: 1. Base plate; 101. First step; 102. Second step; 2. Locking structure; 3. Deceleration cable fixing device. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and are not to be construed as limiting the present invention.

[0027] like Figures 1-4 The non-metallic step locking structure 2 for a commercial vehicle shown includes a base plate 1 molded from a composite material, SMC. It is located at the bottom of the cockpit, where the front wheels are positioned, forming an upper step. The base plate 1 is concave in the middle, and a front wheel fender is provided on one side of the concave area to effectively block mud and water kicked up by the front wheels during driving, protecting other vehicle components. A horizontal protrusion is provided in the middle of the concave area, dividing it into two concave sections, the upper concave section being deeper than the lower one. The bottom side of the lower concave section is a first step 101, and the bottom side of the upper concave section is a second step 102. The two-step design facilitates boarding and exiting the vehicle.

[0028] The upper recessed portion houses a locking mechanism 2. When the door is closed, the locking mechanism 2 is located on the inside of the door, significantly improving theft prevention compared to traditional exposed locking mechanisms. A BOSS pillar is located on the back of the base plate 1, upon which a deceleration cable fixture 3 is mounted. The locking mechanism 2 and the deceleration cable fixture 3 are linked by a steel wire. The deceleration cable fixture 3 is connected to a two-cable mechanism for controlling the toolbox door and front hood opening and closing, achieving multi-component linkage control, simplifying operation and reducing failure rates.

[0029] A mutual sensing device is provided in the recessed area above, which is used to sense whether the vehicle door is closed and display the closing information of the vehicle door, tool box door and front cover on the dashboard of the cab, so that the driver can grasp the status of each component in real time and enhance safety.

[0030] Furthermore, the thickness of the installation area of ​​the locking structure 2 is thickened, and the back of the locking structure 2 is provided with an annular reinforcement limiting protrusion, which is used to fix the locking structure 2, further enhancing the stability and reliability of the locking structure 2.

[0031] The backside bottoms of the bearing surfaces of the first and second steps 101, 102 are equipped with multiple sets of reinforcing ribs to enhance the bearing capacity and structural strength of the steps. The base plate 1 utilizes a locally reduced-material, thickened design, reducing material in non-critical stress-bearing areas and thickening in stress-concentrated areas to achieve a balance between structural strength and lightweight. Drain holes are provided on the bearing surfaces of both the first and second steps 101, 102 to drain accumulated water, prevent water corrosion on the steps, and extend their service life.

[0032] A plurality of electric thermal resistors are provided on the back side of the bearing surface of the first step 101 and the second step 102 to prevent the steps from slipping and falling and causing injuries after icing in winter. The accumulated water can be discharged from the drainage holes after the ice melts into water.

[0033] The mutual sensing device includes an infrared sensing component arranged on the vehicle door and the substrate 1. The infrared sensing component determines whether the vehicle door is open or closed by detecting the infrared ray blocking situation and feeds back the signal to the dashboard of the cab. The sensing is accurate and the response is sensitive.

[0034] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore should not be understood as limiting the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In the present invention, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections, or communication; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0038] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A non-metallic step locking structure (2) for a commercial vehicle, characterized in that: The base plate (1) is formed by compression molding of a composite material SMC, is located at the front wheel position at the bottom of the cockpit and forms an upper step; The middle portion of the base plate (1) is concave inward, and a front wheel fender is provided on one side of the concave region; a horizontal protrusion is provided in the middle portion of the concave region, and the protrusion divides the concave region into two concave parts, the upper concave region having a greater depth than the lower concave region, the bottom side of the lower concave region being a first step (101), and the bottom side of the upper concave region being a second step (102); The upper concave portion is provided with a locking structure (2), and when the vehicle door is closed, the locking structure (2) is located on the inner side of the vehicle door; A BOSS column is provided on the back of the base plate (1), a deceleration cable fixing device (3) is installed on the BOSS column, the locking structure (2) and the deceleration cable fixing device (3) can be linked by a steel wire, and the deceleration cable fixing device (3) is connected to a one-to-two cable structure for controlling the tool box door and the front cover switch; A mutual sensing device is provided at the upper concave area, and the mutual sensing device is used to sense whether the vehicle door is closed and display the closing information of the vehicle door, tool box door and front cover on the cab dashboard.

2. A commercial vehicle non-metallic step locking structure (2) according to claim 1, characterized in that: The thickness of the installation area of ​​the locking structure (2) is thickened, and an annular reinforcement limiting protrusion is provided on the back of the locking structure (2), and the annular reinforcement limiting protrusion is used to fix the locking structure (2).

3. A commercial vehicle non-metallic step locking structure (2) according to claim 1, characterized in that: A plurality of groups of reinforcing ribs are provided at the bottom of the back side of the bearing surface of the first step (101) and the second step (102).

4. A commercial vehicle non-metallic step locking structure (2) according to claim 1, characterized in that: The substrate (1) adopts a local material reduction and thickening design, reducing material in non-stress critical areas and thickening in stress concentration areas, so as to achieve a balance between structural strength and lightness.

5. A commercial vehicle non-metallic step locking structure (2) according to claim 1, characterized in that: Drain holes are provided on the bearing surfaces of the first step (101) and the second step (102).

6. A commercial vehicle non-metallic step locking structure (2) according to claim 1, characterized in that: The mutual sensing device comprises an infrared sensing component arranged on the vehicle door and the substrate (1), wherein the infrared sensing component determines whether the vehicle door is open or closed by detecting infrared ray blocking conditions and feeds back the signal to the dashboard of the cab.

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