Universal type electric overturning step structure
The electric flip-up step structure solves the problems of convenience and spatial adaptability of mechanical telescopic steps, achieving a more efficient, safe, and convenient experience for getting on and off vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖北省齐星汽车车身股份有限公司
- Filing Date
- 2025-07-21
- Publication Date
- 2026-05-15
AI Technical Summary
Mechanical telescopic side steps are inadequate in terms of convenience, spatial adaptability, and user experience in engineering machinery and special vehicles, making it difficult to meet the needs for efficient, safe, and convenient use.
It adopts a universal electric flip-top step structure, including a fixed frame, rotatable second and third steps, and an electric drive mechanism. The drive mechanism drives the third step to rotate and drive the second step. The limit mechanism ensures the stability and reliability of the step in different states.
It improves the convenience of getting on and off the vehicle, reduces operating steps, saves space, and enhances the smoothness and comfort of the driving experience.
Smart Images
Figure CN224240922U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, and in particular to a universal electric flip-up step structure. Background Technology
[0002] In the field of construction machinery and special vehicles, side steps are crucial components that ensure the convenience and safety of drivers getting in and out of vehicles, making their design extremely important. Currently, most side steps used in these vehicles are mechanically telescopic structures, but this structure has many significant limitations in practical applications.
[0003] From the perspective of ease of getting in and out of the vehicle, the limitations of mechanical telescopic steps are particularly prominent when the vehicle chassis is relatively high. Because their extension range and pedal spacing are limited by the mechanical structure, they are difficult to adapt flexibly to the chassis height. This forces the driver to traverse a significant height difference when getting in and out of the vehicle, increasing the difficulty of operation and potentially causing safety hazards due to instability, thus significantly reducing the convenience of getting in and out of the vehicle.
[0004] In terms of space occupation and chassis design, the drawbacks of mechanical telescopic steps are equally obvious. This structure requires complex mechanical components such as linkages and slide rails to achieve its telescopic function, which means its installation on the vehicle chassis occupies a significant amount of space. The chassis area of construction machinery and special vehicles typically integrates many critical components such as the power system, transmission mechanism, and hydraulic lines, making space already extremely limited. The large space occupied by mechanical telescopic steps undoubtedly causes significant interference with the overall chassis layout design, potentially restricting the installation position of other core components and affecting the structural strength and weight balance of the chassis, posing a huge challenge to the optimized design of the entire vehicle chassis.
[0005] Furthermore, in terms of user experience, the traditional manual opening and closing of mechanical side steps is no longer sufficient to meet the modern market's demands for intelligent and convenient vehicles. Drivers must manually operate the steps to extend or retract during entry and exit, which not only increases the number of steps and prolongs the time spent getting in and out of the vehicle, but may also cause inconvenience in inclement weather or emergency situations, severely impacting the smoothness and comfort of the driving experience.
[0006] In conclusion, the shortcomings of mechanical telescopic side steps in terms of convenience, spatial adaptability, and user experience have rendered them unable to meet the current market demands for efficient, safe, and convenient use in construction machinery and special vehicles, necessitating a more advanced structural design to replace them. Utility Model Content
[0007] In view of this, in order to solve the above-mentioned problems of mechanical telescopic step structures, the embodiments of this utility model provide a universal electric flip-up step structure.
[0008] An embodiment of this utility model provides a universal electric flip-top step structure, comprising:
[0009] A mounting bracket, which has a forward-facing mounting groove;
[0010] The first step is horizontally fixedly installed in the fixing groove;
[0011] The second step is rotatably disposed in the fixed groove and located below the first step;
[0012] A first limiting mechanism is disposed between the second step and the fixed groove to limit the rotation range of the second step;
[0013] The third step is rotatably disposed in the fixed groove and located below the second step. The two sides of the third step are rotatably connected to the two sides of the second step by connecting rods.
[0014] The upper end of the drive mechanism is rotatably connected to the rear side of the fixed groove, the middle part passes between the rear side of the fixed groove and the rear side of the second step, and the lower end is rotatably connected to the third step. The drive mechanism is used to drive the third step to rotate, thereby driving the second step to rotate, so that the second step and the third step rotate to a vertical position and are housed in the fixed groove, and under the limiting action of the first limiting mechanism, the second step and the third step rotate to a horizontal position simultaneously.
[0015] Furthermore, the first limiting mechanism includes a limiting plate, which is vertically fixedly connected to one side of the second step. The fixing groove is provided with a limiting groove on the side near the limiting plate. The limiting plate is embedded in the limiting groove and can rotate. The limiting plate rotates to be vertically limited by the limiting groove.
[0016] Furthermore, the limiting groove is a fan-shaped groove, the limiting plate is an L-shaped plate, and the limiting plate abuts against the edge of the limiting groove when rotated to a vertical position.
[0017] Furthermore, it also includes a second limiting mechanism, which is disposed between the three steps and the fixed groove, for limiting the rotation range of the third step.
[0018] Furthermore, the lengths of the third step, the second step, and the first step increase sequentially.
[0019] Furthermore, the driving mechanism is an electric push rod.
[0020] Furthermore, the third step is provided with a through movable groove, and the output end of the electric push rod passes through the movable groove and is rotatably connected to the back of the third step.
[0021] Furthermore, the surface of the fixing frame is provided with a skin, and the upper surfaces of the third step, the second step and the first step are all provided with anti-slip textures.
[0022] Furthermore, the fixing groove is a rectangular groove, and the widths of the first step, the second step, and the third step are the same as the width of the fixing groove.
[0023] Furthermore, the mounting bracket is equipped with a lighting lamp.
[0024] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows:
[0025] 1. This utility model discloses a universal electric flip-up step structure, in which a fixed first step is set inside a fixed frame, and flip-up second and third steps are set inside the fixed frame. The third pedal is driven to rotate by a drive mechanism, and the rotation of the third pedal drives the second step to rotate. Under the action of a first limiting mechanism, the second step is stably rotated to a horizontal state, so that the second and third steps rotate to a horizontal state at the same time. Together with the fixed first step, a three-stage step is formed, which can reduce the step height while extending the overall extension of the step, greatly improving the convenience of getting on and off the vehicle.
[0026] 2. This utility model provides a universal electric flip-up step structure, which replaces the traditional step that is pulled out by a person with a motor drive, making it more convenient for the driver to operate. A limit bracket is added to the step to ensure that the step extends and retracts smoothly, making the structure more stable and reliable.
[0027] 3. The universal electric flip-up step structure of this utility model can be directly installed under the door frame of a car. The drive mechanism is directly integrated into the fixed frame, which avoids occupying a large amount of chassis space and leaves room for the installation of other core components, thus facilitating the optimized design of the vehicle chassis. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of a universal electric flip-top step structure according to this utility model;
[0029] Figure 2 This is a partial schematic diagram of a universal electric flip-top step structure according to this utility model;
[0030] Figure 3 This is a diagram showing the connection between the second and third steps;
[0031] Figure 4 This is a schematic diagram of the unfolded state of a universal electric flip-top step structure according to this utility model;
[0032] Figure 5 This is a schematic diagram of the retracted state of a universal electric flip-step structure according to this utility model. Figure 1 ;
[0033] Figure 6 This is a schematic diagram of the retracted state of a universal electric flip-step structure according to this utility model. Figure 2 ;
[0034] Figure 7 This is a schematic diagram of the installation state of a universal electric flip-top step structure according to this utility model.
[0035] In the diagram: 1. Fixed frame; 2. First step; 3. Second step; 4. Third step; 5. Drive mechanism; 6. Fixed groove; 7. Limiting plate; 8. Limiting groove; 9. Second limiting mechanism; 10. Connecting rod; 11. Movable groove; 12. Anti-slip texture; 13. Lighting lamp; 14. Pin; 15. Car door frame. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.
[0037] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0039] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.
[0040] In the description of this utility model, it should be noted that the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and methods of the circuits, electronic components and modules.
[0041] It should be further noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0042] Please refer to Figure 1-3 This utility model provides a universal electric flip-up step structure. In this embodiment, the universal electric flip-up step structure is applied to engineering machinery. It can be understood that this universal electric flip-up step structure is also applicable to other special vehicles, RVs, and other vehicles that require high doors, and its scope of application is not limited to the specific embodiment of this utility model. The universal electric flip-up step structure of this utility model mainly includes a fixed frame 1, a first step 2, a second step 3, a first limiting mechanism, a third step 4, and a drive mechanism 5.
[0043] The fixing frame 1 is provided with a front-facing fixing groove 6. For example... Figure 7 As shown, the top of the fixing bracket 1 is generally fixed to the bottom of the car door frame 15, the front side of the fixing groove 6 is open, and the fixing groove 6 is the accommodating space for the first step 2, the second step 3 and the third step 4.
[0044] The shape of the fixing groove 6 is determined according to the shapes of the first step 2, the second step 3, and the third step 4. In this embodiment, the first step 2, the second step 3, and the third step 4 are all rectangular, so the fixing groove 6 is a rectangular groove, and the width of the first step 2, the second step 3, and the third step 4 is the same as the width of the fixing groove 6.
[0045] The first step 2 is horizontally fixedly installed in the fixing groove 6, and the edge of the first step 2 is fixedly connected to the inner wall of the fixing groove 6, so that the first step 2 is hidden in the fixing groove 6.
[0046] The second step 3 is rotatably disposed within the fixing groove 6 and located below the first step 2. The two rear sides of the second step 3 are rotatably connected to the left and right side walls of the fixing groove 6. The second step 3 rotates within the fixing groove 6 and is located at a certain distance below the first pedal to avoid interference between the first pedal and the rotation of the second pedal.
[0047] The first limiting mechanism is disposed between the second step 3 and the fixing groove 6 to limit the rotation range of the second step 3. The function of the first limiting mechanism is to keep the second step 3 fixed when it rotates to the desired position, and various limiting mechanisms can be flexibly selected. In this embodiment, the first limiting mechanism includes a limiting plate 7, which is vertically fixedly connected to one side of the second step 3. The fixing groove 6 has a limiting groove 8 on the side near the limiting plate 7. The limiting plate 7 is embedded in the limiting groove 8 and can rotate. When the limiting plate 7 rotates to a vertical position, it is limited by the limiting groove 8.
[0048] In some embodiments, the limiting groove 8 is a fan-shaped groove, which can be a through groove. The limiting plate 7 is an L-shaped plate. One side of the limiting plate 7 is fixed to the side of the second pedal, and the other side extends outward into the limiting groove 8. When the limiting plate 7 is rotated to a vertical position, it abuts against the edge of the limiting groove 8. Thus, when the second step 3 is rotated to a horizontal position, the limiting plate 7 abuts against the edge of the limiting groove 8.
[0049] The third step 4 is rotatably disposed within the fixing groove 6 and located below the second step 3. Both sides of the third step 4 are rotatably connected to the two sides of the second step 3 via connecting rods 10. Specifically, the two rear sides of the third step 4 are rotatably connected to the left and right sidewalls of the fixing groove 6, respectively. The upper ends of the two connecting rods 10 are rotatably connected to the two front sides of the second step 3, respectively, and the lower ends are rotatably connected to the two middle sides of the third step 4, respectively. The upper and lower ends of the connecting rods 10 are rotatably connected to the second step 3 and the third step 4 via pins 14, respectively.
[0050] The upper end of the drive mechanism 5 is rotatably connected to the rear side of the fixed groove 6, the middle part passes between the rear side of the fixed groove 6 and the rear side of the second step 3, and the lower end is rotatably connected to the third step 4. Specifically, the drive mechanism 5 is an electric push rod. The third step 4 has a through movable groove 11, and the output end of the electric push rod passes through the movable groove 11 and is rotatably connected to the back of the third step 4. The rear part of the second pedal 3 has an approximately U-shaped notch, and the middle part of the drive mechanism 5 passes through the notch.
[0051] The driving mechanism 5 is used to drive the third step 4 to rotate, thereby causing the second step 3 to rotate, so that the second step 3 and the third step 4 rotate to a vertical position and are housed in the fixed groove 6, and under the limiting action of the first limiting mechanism, the second step 3 and the third step 4 rotate to a horizontal position simultaneously.
[0052] In some embodiments, the lengths of the third step 4, the second step 3, and the first step 2 increase sequentially. Thus, when the third step 4 and the second step 3 are both rotated to a horizontal position, they cooperate with the first step 2 to form a three-tiered step with an increasingly larger outward expansion.
[0053] Furthermore, in some embodiments, the universal electric reversible step structure of this utility model further includes a second limiting mechanism 9, which is disposed between the three steps and the fixing groove 6, for limiting the rotation range of the third step 4. The function of the second limiting mechanism 9 is similar to that of the first limiting mechanism, keeping the third step 4 fixed when rotated to the desired position, and various limiting mechanisms can be flexibly selected. Here, the structure of the second limiting mechanism 9 is exactly the same as that of the first limiting mechanism. The second limiting mechanism 9 is disposed between one side of the third step 4 and the side wall of the fixing groove 6. When the third step 4 rotates to a horizontal state, the second limiting mechanism 9 limits the third step 4, keeping it fixed.
[0054] In some embodiments, the surface of the fixing frame 1 is provided with a skin that is waterproof and corrosion-resistant, providing mild protection against scratches, dirt, and corrosion. The upper surfaces of the third step 4, the second step 3, and the first step 2 are all provided with anti-slip textures 12 to improve the safety of stepping on them.
[0055] Considering that the construction machinery may be used in dim environments, the mounting frame 1 is equipped with a lighting lamp 13. The lamp is located on the upper part of the mounting groove 6. When the third step 4, the second step 3 and the first step 2 are unfolded, the lamp is turned on to facilitate observation and accurate stepping.
[0056] This utility model discloses a universal electric flip-step structure with two states: unfolded and retracted.
[0057] Expanded status: Please refer to Figure 4 The electric push rod extends to drive the third step 4 to flip forward, and the connecting rod 10 pulls the second step 3 to flip forward, so that the second step 3 and the third step 4 flip to a horizontal state. At the same time, the limiting plate 7 rotates to a vertical state within the limiting groove 8 and abuts against the edge of the limiting groove 8. The rear side of the second step 3 is supported by the middle of the electric push rod, and the second limiting mechanism 9 limits the third step 4 to a horizontal state, so that the second step 3 and the third step 4 are stably kept in a horizontal state, thereby cooperating with the first step 2 to form a horizontally unfolded three-stage step for the driver to step up and down.
[0058] Status reverted: Please refer to Figure 5 and 6The electric push rod retracts to drive the third step 4 to flip backward, the connecting rod 10 pulls the second step 3 to flip backward, the first limiting mechanism and the second limiting mechanism 9 release the limiting state, so that the second step 3 and the third step 4 flip to the vertical state, so that the second step 3 and the third step 4 are stored in the space below the first step 2 in the fixed groove 6.
[0059] In this document, the directional terms such as front, back, top, and bottom are defined based on the position of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on different methods of use and placement; the use of these directional terms should not limit the scope of protection claimed in this application.
[0060] Where there is no conflict, the embodiments and features described above can be combined with each other. The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A universal electric flip-top step structure, characterized in that, include: A mounting bracket, which has a forward-facing mounting groove; The first step is horizontally fixedly installed in the fixing groove; The second step is rotatably disposed in the fixed groove and located below the first step; A first limiting mechanism is disposed between the second step and the fixed groove to limit the rotation range of the second step; The third step is rotatably disposed in the fixed groove and located below the second step. The two sides of the third step are rotatably connected to the two sides of the second step by connecting rods. The upper end of the drive mechanism is rotatably connected to the rear side of the fixed groove, the middle part passes between the rear side of the fixed groove and the rear side of the second step, and the lower end is rotatably connected to the third step. The drive mechanism is used to drive the third step to rotate, thereby driving the second step to rotate, so that the second step and the third step rotate to a vertical position and are housed in the fixed groove, and under the limiting action of the first limiting mechanism, the second step and the third step rotate to a horizontal position simultaneously.
2. The universal electric flip-top step structure as described in claim 1, characterized in that: The first limiting mechanism includes a limiting plate, which is vertically fixed to one side of the second step. The fixing groove is provided with a limiting groove on the side of the limiting plate. The limiting plate is embedded in the limiting groove and can rotate. The limiting plate rotates to be vertically limited by the limiting groove.
3. The universal electric reversible step structure as described in claim 2, characterized in that: The limiting groove is a fan-shaped groove, and the limiting plate is an L-shaped plate. When the limiting plate is rotated to a vertical position, it abuts against the edge of the limiting groove.
4. The universal electric reversible step structure as described in claim 1, characterized in that: It also includes a second limiting mechanism, which is disposed between the three steps and the fixed groove, for limiting the rotation range of the third step.
5. The universal electric flip-top step structure as described in claim 1, characterized in that: The lengths of the third step, the second step, and the first step increase sequentially.
6. The universal electric reversible step structure as described in claim 1, characterized in that: The drive mechanism is an electric push rod.
7. A universal electric reversible step structure as described in claim 6, characterized in that: The third step is provided with a through slot, and the output end of the electric push rod passes through the slot and is rotatably connected to the back of the third step.
8. The universal electric flip-top step structure as described in claim 1, characterized in that: The surface of the fixing frame is covered with a skin, and the upper surfaces of the third step, the second step and the first step are all provided with anti-slip texture.
9. A universal electric reversible step structure as described in claim 1, characterized in that: The fixing groove is a rectangular groove, and the widths of the first step, the second step, and the third step are the same as the width of the fixing groove.
10. A universal electric reversible step structure as described in claim 1, characterized in that: The mounting bracket is equipped with a lighting lamp.