Induction type automatic step device for motor home
By using infrared sensors and a control module to drive the telescopic cylinder to automatically control the step device, the problem of cumbersome manual operation of traditional RV steps is solved, and an automated and safe step experience is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI WEIERTEFEN RV TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional RV step devices require manual storage, which is cumbersome, time-consuming, and labor-intensive. They are also inconvenient for carrying heavy items and can easily cause scratches while driving if forgotten to be stored, reducing safety and practicality.
Infrared sensors and control modules work in conjunction with telescopic cylinders to automatically sense and control the unfolding and retraction of the steps. Combined with pressure sensors to monitor abnormal situations, safety is ensured.
It enables automatic unfolding and folding of the steps, reducing manual operation steps, improving convenience, avoiding pinching accidents, and enhancing safety and practicality.
Smart Images
Figure CN224576557U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of RV step devices, and more specifically, it relates to an induction-type automatic step device for RVs. Background Technology
[0002] As a foldable or retractable step component installed below the vehicle door, the core function of a motorhome step is to solve the inconvenience of getting in and out of the vehicle and the risk of falling caused by the large ground clearance of the door by creating a safe foot platform of suitable height. At the same time, it can be folded up when not in use to reduce wind resistance and the risk of scratches, effectively improving the convenience and safety of motorhome use. However, traditional motorhome step devices require manual storage. In scenarios where frequent getting in and out of the vehicle is required, the manual operation is cumbersome and consumes a lot of time and energy. When carrying heavy objects, manual operation is not only inconvenient but also increases the safety risk. Moreover, if it is forgotten to be folded up, it is very easy to be scratched during driving, thus reducing the safety and practicality of the motorhome step. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides an induction-type automatic step device for RVs. This solves the technical problems of traditional manual RV step storage, which is time-consuming and laborious to operate when frequently getting in and out of the vehicle, inconvenient to carry heavy objects and prone to causing danger, and easy to scratch if forgotten to be stored while driving, thus reducing the safety and practicality of the step device.
[0004] The purpose and function of this utility model for a sensor-operated automatic step device for RVs are achieved by the following specific technical means:
[0005] An induction-type automatic step device for RVs includes a mounting component and a pedal. The mounting component has a storage cavity. Two sets of telescopic cylinders are arranged opposite each other on one side of the mounting component, and the push rods of the two sets of telescopic cylinders pass through the mounting component and are disposed in the storage cavity. A transmission plate is also disposed in the storage cavity. One side of the transmission plate is connected to the two sets of telescopic cylinders. The pedal is movably disposed in the storage cavity, and one side of the pedal is connected to the other side of the transmission plate. A pressure sensor is also disposed between the transmission plate and the pedal. The bottom of the mounting component also has multiple sets of mounting compartments. Each set of mounting compartments is provided with an infrared sensor and a control module. The control module is electrically connected to the pressure sensor, the infrared sensor, and the two sets of telescopic cylinders.
[0006] The above technical solution further includes that two sets of positioning members are arranged opposite each other on the side of the transmission plate away from the two sets of telescopic cylinders, and the pressure sensor is respectively arranged in the two sets of positioning members; a positioning groove is arranged on the side of the pedal close to the transmission plate corresponding to the two sets of positioning members, the positioning member is locked in the positioning groove, and the contact of the pressure sensor is in contact with the pedal.
[0007] The above technical solution further includes that clamps are provided on two opposite sides of the transmission plate, and clamping grooves are provided on the transmission plate corresponding to the two sets of clamps, and the two sets of clamps are respectively disassembled and installed in the clamping grooves.
[0008] The above technical solution further includes that an assembly part is provided on the side of the mounting component away from the two sets of telescopic cylinders, and a lighting lamp is replaced in the assembly part, and the lighting lamp is also electrically connected to the control module.
[0009] The above technical solution further includes that two sets of guide grooves are provided on the two opposite inner surfaces of the storage cavity, and two sets of sliding members are provided on both sides of the pedal corresponding to the guide grooves, and the two sets of sliding members are respectively slidably disposed in the two sets of guide grooves.
[0010] The above technical solution further includes that the top of the pedal is evenly provided with multiple sets of rubber anti-slip parts.
[0011] The above technical solution further includes that the top of the mounting component has an inspection port extending through the storage cavity, and an isolation plate is also detachably installed inside the inspection port; two sets of mounting plates are also provided on the mounting component near both sides of the inspection port.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. Automatic sensing and control is achieved through the coordinated operation of infrared sensors, a control module, and telescopic cylinders. The infrared sensor is installed in the mounting compartment at the bottom of the mounting component, detecting external signals in real time. When a trigger signal is detected (such as when a person triggers the signal in a specific posture), the infrared sensor immediately transmits the signal to the control module in the same mounting compartment. After receiving the signal, the control module sends commands to the two sets of telescopic cylinders. Driven by these commands, the cylinder's push rod extends and retracts through the mounting component within the storage cavity, actuating the connected transmission plate. This causes the pedal connected to the transmission plate to automatically unfold or retract. The entire process requires no manual operation, significantly reducing steps and increasing the convenience of using the step.
[0014] 2. A pressure sensor installed between the pedal and the transmission plate can monitor changes in pressure on the pedal in real time. During the extension and retraction of the RV steps, if any foreign object obstructs the movement or a human limb accidentally enters the movement path, the pressure sensor immediately detects the abnormal pressure signal and quickly feeds it back to the control module. Upon receiving the abnormal signal, the control module immediately issues a command to stop the extension cylinder, thus immediately terminating the extension and retraction of the steps. This effectively avoids pinching accidents caused by continuous step movement, thereby ensuring the safety of the RV steps during use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model.
[0016] Figure 2 This is a bottom view of the assembled structure of this utility model.
[0017] Figure 3 This is an exploded structural diagram of the pedal and transmission plate of this utility model.
[0018] Figure 4 This is a structural schematic diagram of the mounting component of this utility model.
[0019] Figure 5 This is a schematic diagram of the principle of this utility model.
[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0021] 1. Mounting component; 2. Pedal; 3. Telescopic cylinder; 4. Control module; 101. Storage cavity; 102. Transmission plate; 103. Pressure sensor; 104. Infrared sensor; 201. Positioning component; 301. Clamp; 302. Clamping groove; 401. Lighting lamp; 501. Guide groove; 502. Sliding component; 601. Anti-slip component; 701. Inspection port; 702. Mounting plate. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.
[0023] Example:
[0024] like Figures 1 to 5As shown, this utility model provides an induction-type automatic step device for RVs, including a mounting component 1 and a pedal 2. The mounting component 1 has a storage cavity 101. Two sets of telescopic cylinders 3 are arranged opposite each other on one side of the mounting component 1, with the top rods of the two sets of telescopic cylinders 3 passing through the mounting component 1 and positioned within the storage cavity 101. A transmission plate 102 is also provided within the storage cavity 101, with one side of the transmission plate 102 connected to the two sets of telescopic cylinders 3. The pedal 2 is movably disposed within the storage cavity 101, with one side of the pedal 2 connected to the other side of the transmission plate 102. A pressure sensor 103 is also provided between the transmission plate 102 and the pedal 2. The bottom of the mounting component 1 also has multiple mounting compartments, each containing an infrared sensor 104 and a control module 4. The control module 4 is electrically connected to the pressure sensor 103, the infrared sensor 104, and the two sets of telescopic cylinders 3. The mounting component 1 provides a storage space for the pedal 2. When the vehicle is in motion, the pedal 2 is retracted into the storage cavity 101, isolating it from the external environment and reducing the risk of scraping against road protrusions, steps, etc. Two sets of telescopic cylinders 3 are arranged on one side of the mounting component 1, with their push rods penetrating the mounting component 1 and extending into the storage cavity 101. When the telescopic cylinder 3 is working, the push rods move in a telescopic motion, directly acting on the transmission plate 102, converting the power of the telescopic cylinder 3 into the displacement power of the transmission plate 102, driving the pedal 2 to complete the unfolding or retraction action within the storage cavity 101 along a predetermined trajectory, providing a stable and reliable power source for the movement of the pedal 2.
[0025] One side of the transmission plate 102 is fixedly connected to the push rods of two sets of telescopic cylinders 3, receiving the power transmitted by the telescopic cylinders 3. The other side is connected to the pedal 2, transmitting the power to the pedal 2. When the push rods of the telescopic cylinders 3 extend or retract, the transmission plate 102 moves accordingly, driving the pedal 2 to move synchronously through its connection with the pedal 2, ensuring that the pedal 2 unfolds and retracts in a specific direction and path. A pressure sensor 103 is installed between the transmission plate 102 and the pedal 2 to monitor the load-bearing pressure value of the pedal 2 in real time. When the extension of the pedal 2 is abnormal, such as a sudden increase, decrease, or exceeding the preset range of pressure, the pressure sensor 103 converts the pressure data into an electrical signal and transmits it to the control module 4. After receiving the abnormal signal, the control module 4 sends a command to the telescopic cylinders 3 to control the telescopic cylinders 3 to stop moving or change their movement state, preventing damage to the pedal 2 structure or danger caused by abnormal load. The pressure sensor 103 can be an AP-44 model pressure sensor; the control module 4 can be an LTK01-1002 model control module.
[0026] The bottom of mounting component 1 has multiple mounting slots for fixing the infrared sensor 104 and control module 4. The infrared sensor 104 continuously monitors external environmental signals, such as the opening and closing status of the car door, and changes in signals such as the proximity of a human body. When a specific signal is detected, the infrared sensor 104 converts the signal into an electrical signal and transmits it to the control module 4. The control module 4 analyzes and processes the received signal, and sends corresponding control commands to the telescopic cylinder 3 according to a preset program and logical judgment. If the infrared sensor 104 detects a specific signal (such as the proximity or waving of a human foot, or when the door is opened), the control module 4 controls the extension rod of the telescopic cylinder 3 to extend, causing the pedal 2 to unfold; after a certain period of time or after the door is closed, the control module 4 controls the extension rod of the telescopic cylinder 3 to retract, causing the pedal 2 to retract into the storage cavity 101, realizing the automatic sensing extension and retraction of the pedal 2, reducing manual operation steps; the infrared sensor 104 can be a TAD-K218D model infrared sensor.
[0027] like Figure 3 and Figure 4 As shown, two sets of guide grooves 501 are provided on the two opposite inner surfaces of the storage cavity 101. Two sets of sliding members 502 are provided on both sides of the pedal 2 corresponding to the guide grooves 501, and the two sets of sliding members 502 are slidably disposed within the two sets of guide grooves 501 respectively. Multiple sets of rubber anti-slip members 601 are also evenly distributed on the top of the pedal 2. Two sets of sliding members 502 are provided on both sides of the pedal 2, and the sliding members 502 are embedded in the guide grooves 501 in the storage cavity 101. When the telescopic cylinder 3 drives the transmission plate 102 to extend or retract the pedal 2 within the storage cavity 101, the sliding members 502 slide along the guide grooves 501, restricting the direction of movement of the pedal 2, ensuring that the pedal 2 moves smoothly in a straight line, preventing the pedal 2 from deviating, shaking, or jamming during movement, and making the extension and retraction of the pedal 2 more precise.
[0028] Multiple sets of rubber anti-slip components 601 are evenly arranged at the top of the pedal 2. Rubber itself has a high coefficient of friction. When people step on the pedal 2 to get on or off the vehicle, the anti-slip components 601 come into contact with the soles of their shoes, increasing the friction between them and preventing people from slipping due to insufficient friction between the soles of their shoes and the surface of the pedal 2, thus improving the safety of people getting on and off the vehicle.
[0029] like Figure 1 and Figure 4 As shown, the top of the mounting component 1 has an inspection port 701 extending through the storage cavity 101, and an isolation plate is also detachably installed inside the inspection port 701. Two sets of mounting plates 702 are also installed on the mounting component 1 near both sides of the inspection port 701. The inspection port 701 extending through the storage cavity 101 at the top of the mounting component 1 provides a maintenance channel for components such as the telescopic cylinder 3, transmission plate 102, and pressure sensor 103 inside the storage cavity 101. When the device malfunctions or requires maintenance, the internal parts can be directly accessed through the inspection port 701 for inspection, repair, and replacement operations, without disassembling a large amount of external structure, thus shortening maintenance time and reducing maintenance difficulty.
[0030] A removable partition plate is installed inside the access port 701. During normal use, the partition plate is installed inside the access port 701 to isolate the storage cavity 101 from the outside environment, preventing dust and debris from entering the storage cavity 101. This avoids debris affecting the retraction and extension of the pedal 2, or causing wear and malfunction of internal parts due to dust accumulation, ensuring the cleanliness of the storage cavity 101 and the normal operation of its components. When maintenance is required, the partition plate can be removed to open the maintenance passage. Two sets of mounting plates 702 are installed on the mounting components 1 near both sides of the access port 701 to fix the mounting components 1 to the RV. Mounting holes can be made on the mounting plates 702, and the mounting components 1 are securely installed in the corresponding positions on the RV using bolts, nuts, and other connecting parts. This ensures the entire sensor-operated automatic step device is firmly installed, maintaining stability during RV travel and preventing loosening from affecting the normal retraction and extension of the pedal 2 and ensuring safe use.
[0031] like Figure 3 and Figure 4 As shown, two sets of positioning members 201 are arranged opposite each other on the side of the transmission plate 102 away from the two sets of telescopic cylinders 3. Pressure sensors 103 are respectively installed within each of the two sets of positioning members 201. Positioning grooves are provided on the side of the pedal 2 closest to the transmission plate 102, corresponding to the two sets of positioning members 201. The positioning members 201 are engaged in the positioning grooves, and the contacts of the pressure sensors 103 are in contact with the pedal 2. On the other two opposite sides of the transmission plate 102, clamps 301 are also arranged opposite each other. Clamping grooves 302 are also provided on the transmission plate 102 corresponding to the two sets of clamps 301. The two sets of clamps 301 are detachably installed within the clamping grooves 302. The two sets of positioning members 201 on the side of the transmission plate 102 away from the telescopic cylinders 3, containing pressure sensors 103, and the pedal 2 corresponding to the positioning grooves, ensure precise alignment between the transmission plate 102 and the pedal 2. The contacts of the pressure sensors 103 are in contact with the pedal 2, monitoring the load data of the pedal 2 in real time. When the force on pedal 2 changes, the pressure sensor 103 converts the data into an electrical signal and transmits it to the control module 4. The control module 4 then controls the telescopic cylinder 3 to operate, ensuring the safety of pedal 2. At the same time, the positioning component 201 cooperates with the positioning groove to enhance the stability of the connection between pedal 2 and transmission plate 102, ensuring power transmission.
[0032] Clamps 301 are provided on both sides of the transmission plate 102, with corresponding clamping grooves 302. The clamps 301 can be detachably installed in the clamping grooves 302. During installation, the clamps 301 fix the transmission plate 102 and other components, ensuring the structural stability of the transmission plate 102 during the transmission of power from the telescopic cylinder 3 and preventing loosening of components from affecting the movement of the pedal 2. During disassembly, it facilitates the inspection and replacement of the transmission plate 102 and related components without the need for a complete disassembly device, reducing maintenance difficulty and improving maintenance efficiency.
[0033] like Figures 1 to 2As shown, an assembly section is provided on the side of the mounting component 1 away from the two sets of telescopic cylinders 3. A lighting lamp 401 is installed in the assembly section, and the lighting lamp 401 is also electrically connected to the control module 4. The assembly section on the side of the mounting component 1 away from the telescopic cylinders 3 provides installation space for the lighting lamp 401. The assembly section supports the replacement of the lighting lamp 401; when the lighting lamp 401 is damaged, it can be directly disassembled and replaced with a new lamp without replacing the entire mounting component 1 or other parts, reducing maintenance costs and improving maintenance efficiency.
[0034] The lighting lamp 401 is electrically connected to the control module 4. When the pedal 2 is unfolded, the infrared sensor 104 detects a trigger signal and transmits it to the control module 4. Simultaneously, the control module 4 controls the telescopic cylinder 3 to unfold the pedal 2 and sends a power-on command to the lighting lamp 401, which then turns on. The light illuminates the surface of the pedal 2 and its surrounding area, allowing passengers to clearly observe the position and surface condition of the pedal 2 when getting on or off the vehicle in low-light conditions. This prevents passengers from slipping or falling due to poor visibility, improving safety during nighttime or dimly lit environments.
[0035] The above description is merely an embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A sensor-operated automatic step device for RVs, comprising a mounting component (1) and a pedal (2), characterized in that: The mounting component (1) has a storage cavity (101) inside. Two sets of telescopic cylinders (3) are arranged opposite each other on one side of the mounting component (1). The top rods of the two sets of telescopic cylinders (3) pass through the mounting component (1) and are arranged in the storage cavity (101). A transmission plate (102) is also arranged in the storage cavity (101). One side of the transmission plate (102) is connected to the two sets of telescopic cylinders (3). The pedal (2) is movably arranged in the storage cavity (101), and one side of the pedal (2) is connected to the other side of the transmission plate (102). A pressure sensor (103) is also arranged between the transmission plate (102) and the pedal (2). The bottom of the mounting component (1) is also provided with multiple sets of mounting compartments, and each set of mounting compartments is provided with an infrared sensor (104) and a control module (4). The control module (4) is electrically connected to the pressure sensor (103), the infrared sensor (104) and the two sets of telescopic cylinders (3).
2. The induction automatic step device for a recreational vehicle according to claim 1, characterized in that: Two sets of positioning members (201) are arranged opposite each other on the side of the transmission plate (102) away from the two sets of telescopic cylinders (3), and the pressure sensor (103) is respectively arranged in the two sets of positioning members (201); the pedal (2) is provided with a positioning groove on the side of the transmission plate (102) corresponding to the two sets of positioning members (201), the positioning member (201) is locked in the positioning groove, and the contact of the pressure sensor (103) is in contact with the pedal (2).
3. The automatic induction stepping device for a recreational vehicle according to claim 2, wherein: The transmission plate (102) is also provided with clamps (301) on two opposite sides. The transmission plate (102) is also provided with clamping grooves (302) corresponding to the two sets of clamps (301). The two sets of clamps (301) are respectively disassembled and installed in the clamping grooves (302).
4. The automatic induction stepping device for a recreational vehicle according to claim 1, wherein: The mounting component (1) is provided with an assembly part on the side away from the two sets of telescopic cylinders (3), and a lighting lamp (401) is installed in the assembly part. The lighting lamp (401) is also electrically connected to the control module (4).
5. The automatic induction stepping device for a recreational vehicle of claim 1, wherein: The storage cavity (101) has two sets of guide grooves (501) on its two opposite inner sides. The pedal (2) has two sets of sliding members (502) on both sides corresponding to the guide grooves (501). The two sets of sliding members (502) are respectively slidably disposed in the two sets of guide grooves (501).
6. The automatic induction stepping device for a recreational vehicle according to claim 5, wherein: The top of the pedal (2) is also uniformly provided with multiple sets of rubber anti-slip parts (601).
7. The automatic induction stepping device for a recreational vehicle of claim 1, wherein: The top of the mounting component (1) passes through the storage cavity (101) and has an inspection port (701). An isolation plate is also installed inside the inspection port (701). Two sets of mounting plates (702) are also installed on the mounting component (1) near the two sides of the inspection port (701).