Motor home electric extension structure and control method for extension structure

Abstract

The invention relates to a motor home electric expansion structure and a control method for the same, and relates to the technical field of motor home expansion, the motor home electric expansion structure comprises a vehicle body, a top plate is slidably arranged at the top of the vehicle body, a driving assembly is arranged between the top plate and the vehicle body, and the driving assembly comprises a lifting rod and a lifting piece; the four lifting rods are hinged to the four corners of the top plate correspondingly and arranged on the vehicle body in a sliding mode, the two lifting pieces are arranged at the positions, close to the vehicle head and the vehicle tail, of the top plate correspondingly, each lifting piece drives the two lifting rods at the two ends of the top plate in the length direction correspondingly, and the two lifting pieces synchronously lift to drive the top plate to overall lift. And the two lifting pieces correspondingly lift and drive the top plate to be obliquely lifted, and the effect of improving the space of the motor home is achieved.

Description

Technical Field

[0001] The present application relates to the field of RV expansion, and in particular to an RV electric expansion structure and a control method for the expansion structure. Background Art

[0002] An RV, also known as a "home on wheels", combines the functions of a "house" and a "car", but its attribute is still a car. It is a mobile vehicle with the basic facilities necessary for a home.

[0003] RVs are a more practical means of transportation for travel, but a small space for activities is a common problem. People will buy various souvenirs during the trip. The accumulation of a large number of souvenirs has little impact when driving. However, it will compress the space for activities when resting, thus affecting the quality of rest in the RV. Summary of the invention

[0004] In order to increase the space of a motorhome, the present application provides an electric expansion structure for a motorhome.

[0005] The electric expansion structure of a motorhome provided in this application adopts the following technical solution: A motorhome electric expansion structure includes a vehicle body, a top plate is slidably provided on the top of the vehicle body, a driving assembly is provided between the top plate and the vehicle body, the driving assembly includes a lifting rod and a lifting member, the lifting rod has four rods which are respectively hinged at the four corners of the top plate, the lifting rod is slidably provided on the vehicle body, and two lifting members are respectively provided at the top plate near the front and the rear of the vehicle, each of the lifting members drives two lifting rods at both ends of the top plate in the length direction, the two lifting members lift synchronously to drive the top plate to rise and fall as a whole, and the two lifting members lift and drive the top plate to tilt and rise respectively.

[0006] By adopting the above technical scheme, the top plate can be raised to the horizontal platform by driving the lifting rods near the front and the rear of the vehicle to rise and fall synchronously through the lifting member. The lifting rods near the front or the rear of the vehicle can be lifted separately through the lifting member. The top plate can be tilted and lifted through the articulation of the lifting rods, thereby only expanding the required expansion area, facilitating the subsequent resetting of the top plate, and expanding the internal space of the RV by lifting the top plate, thereby increasing the space of the RV.

[0007] Optionally, an ultrasonic sensor is installed on the side of the top plate facing the vehicle body, and at least one ultrasonic sensor is arranged on the top plate near the front and rear of the vehicle.

[0008] Optionally, a corrugated ring sleeve is provided between the top plate and the vehicle body, and one end of the corrugated ring sleeve is fixed on the top plate, and the other end is fixed on the vehicle body.

[0009] Optionally, an embedding groove is provided on the vehicle body, and when the top plate is attached to the vehicle body, the corrugated ring sleeve is folded and stored in the embedding groove.

[0010] Optionally, a support rod is rotatably provided on the top plate near the width direction, the support rod is embedded in the top plate on the side facing the vehicle body, the top plate slides away from the vehicle body, and the support rod rotates and tilts to abut between the top plate and the vehicle body.

[0011] Optionally, a skylight is provided on the top plate, a baffle is slidably provided on the top plate, a power member is provided on the top plate, the power member drives the baffle to slide, and the baffle opens or closes the skylight by sliding.

[0012] Optionally, a driving rod is fixedly disposed on the baffle plate toward the support rod, and the baffle plate slides to drive the driving rod to drive the support rod to be stored in the top plate.

[0013] Optionally, a connecting rod is fixedly provided between the two lifting rods near the front of the vehicle and between the two lifting rods near the rear of the vehicle, and the lifting member is arranged on the connecting rod.

[0014] A control method for an electric expansion structure of a motorhome, comprising a processing terminal installed in the vehicle body, the processing terminal being electrically connected to a control panel, the control panel being arranged on the center console of a cab of the vehicle body, the processing terminal being electrically connected to a lifting member, an ultrasonic sensor and a power member, pressing a corresponding control button on the control panel, an electrical signal being transmitted to the processing terminal, the processing terminal controlling the opening and closing of the lifting member and the power member after processing the electrical signal, the ultrasonic sensor detecting the distance between a top plate and an object in the vehicle body and feeding back the detection data to the processing terminal, and when the distance reaches a preset value of the processing terminal, the processing terminal stopping the operation of the lifting member and feeding back the fault details to the control panel.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The lifting member drives the lifting rods near the front and rear of the vehicle to rise and fall synchronously to raise and lower the roof on the horizontal platform. The lifting member lifts the lifting rods near the front or rear of the vehicle separately, and the roof can be tilted and lifted through the hinge of the lifting rods, so that only the required expansion area is expanded, which is convenient for the subsequent resetting of the roof. The internal space of the RV is expanded by lifting the roof, which has the effect of increasing the space of the RV; 2. The ultrasonic sensor is electrically connected to the processing unit to transmit the detected data to the processing unit in the form of an electrical signal. When the top plate slides too close to the objects in the vehicle body, the processing unit controls the top plate to stop sliding, thereby reducing the probability of the top plate sliding and crushing the objects in the vehicle body; 3. The setting of the corrugated ring can seal the gap between the top plate and the car body when the top plate is raised or lowered, preventing rainwater from entering, and reducing the probability of the corrugated ring being exposed to the sun for a long time when not in use, thereby reducing the probability of the corrugated ring aging and increasing the service life of the corrugated ring. The corrugated ring can be used to seal the top plate and the car body to fill the sealing strip when it is stored, reducing the probability of rainwater entering the car body from the gap between the top plate and the car body; 4. The support rod is used to support the top plate and the vehicle body. It improves the structural strength between the top plate and the vehicle body when the top plate slides away from the vehicle body. The support rod can be conveniently stored by opening and closing the sunroof. When the top plate needs to be stored, there is no need to manually drive the support rod to store it. The support of the top plate by the support rod can be cancelled, thereby reducing the impact of the support rod on the top plate when it is stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the top plate structure of an embodiment of the present application.

[0018] In the figure, 1, vehicle body; 2, top plate; 3, driving assembly; 31, lifting rod; 32, lifting member; 4, articulated table; 5, rodless electric cylinder; 6, guide sleeve; 7, connecting rod; 8, ultrasonic sensor; 9, corrugated ring sleeve; 10, embedded groove; 11, support rod; 12, skylight; 13, baffle; 14, power member; 15, driving rod. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-2 The present application is further described with specific embodiments: First of all, it should be noted that in the description of this application, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, a limited connection such as an interference fit, a transition fit, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0020] The present application embodiment discloses an electric expansion structure for a motorhome, referring to Figure 1 and Figure 2, including a car body 1 of the whole caravan, a top plate 2 of the whole rectangular parallelepiped is slidably arranged on the top of the car body 1, a driving assembly 3 is arranged between the top plate 2 and the car body 1, and the driving assembly 3 includes four lifting rods 31 respectively hingedly arranged at the four corners of the top plate 2 and two lifting members 32 respectively arranged at the top plate 2 near the front and rear of the car, in this embodiment, the lifting rods 31 are hingedly arranged on the hinge platform 4, and the hinge platform 4 slides on the top plate 2 along the length direction of the top plate 2 through the rodless electric cylinder 5, and the lifting rods 31 The lifting rod 31 is provided on the vehicle body 1 for sliding movement. A guide sleeve 6 is provided on the vehicle body 1 corresponding to the lifting rod 31. The guide sleeve 6 is fixed in the vehicle body 1 and can guide the sliding movement of the lifting rod 31 to ensure the sliding stability of the lifting rod 31 and guide the sliding direction of the lifting rod 31. Two of the four lifting rods 31 are slidingly provided near the front of the vehicle body 1, and two are slidingly provided near the rear of the vehicle body 1. A connecting rod 7 is fixedly provided between the two lifting rods 31 near the front of the vehicle and between the two lifting rods 31 near the rear of the vehicle. The connecting rod 7 can connect the two lifting rods 31 at the same end of the top plate 2 in the length direction to facilitate the simultaneous driving of the lifting rods 31 at the same end of the top plate 2 in the length direction. The lifting member 32 is arranged on the connecting rod 7. In this embodiment, the lifting member 32 is an electric push cylinder. One of the two lifting members 32 drives the two lifting rods 31 near the front of the vehicle in the length direction of the top plate 2, and the other drives the two lifting rods 31 near the rear of the vehicle in the length direction of the top plate 2. The two lifting members 32 synchronously lift and drive the top plate 2 to rise and fall as a whole. The two lifting members 32 respectively lift and drive the top plate 2 to tilt and rise. The lifting member 32 drives the lifting rods 31 near the front of the vehicle and near the rear of the vehicle to rise and fall synchronously to enable the top plate 2 to be horizontal. The lifting member 32 separately lifts the lifting rods 31 near the front of the vehicle or near the rear of the vehicle, and the tilting and lifting of the top plate 2 can be realized through the hinge of the lifting rods 31, thereby only expanding the required expansion area, facilitating the subsequent resetting of the top plate 2, and expanding the internal space of the RV by lifting the top plate 2, thereby achieving the effect of improving the space of the RV.

[0021] Reference Figure 1 and Figure 2 An ultrasonic sensor 8 is installed on the side of the top plate 2 facing the vehicle body 1. At least one ultrasonic sensor 8 is arranged on the top plate 2 near the front and rear of the vehicle. In this embodiment, one ultrasonic sensor 8 is arranged on the top plate 2 near the front and rear of the vehicle. The ultrasonic sensor 8 is embedded in the top plate 2 and flush with the surface of the top plate 2. The ultrasonic sensor 8 detects the distance between the objects stored in the vehicle body 1 and the top plate 2 through ultrasonic waves. The ultrasonic sensor 8 is electrically connected to the processing unit and transmits the detected data to the processing unit in the form of electrical signals. When the top plate 2 slides to the distance too close to the objects in the vehicle body 1, the processing unit controls to stop the sliding of the top plate 2, thereby reducing the probability of the top plate 2 sliding and crushing the objects in the vehicle body 1.

[0022] Reference Figure 1 and Figure 2A corrugated ring sleeve 9 is provided between the top plate 2 and the vehicle body 1. The corrugated ring sleeve 9 is a rubber ring sleeve with folding storage and stretching expansion. One end of the corrugated ring sleeve 9 is fixed on the top plate 2, and the other end is fixed on the vehicle body 1. The setting of the corrugated ring sleeve 9 can seal the gap between the top plate 2 and the vehicle body 1 when the top plate 2 is raised or lowered to prevent rainwater from entering; an embedding groove 10 is provided on the vehicle body 1, and when the top plate 2 is attached to the vehicle body 1, the corrugated ring sleeve 9 is folded and stored in the embedding groove 10. The setting of the embedding groove 10 can store the folded corrugated ring sleeve 9, reducing the probability of the corrugated ring sleeve 9 being exposed to the sun for a long time when not in use, thereby reducing the probability of the corrugated ring sleeve 9 aging and improving the service life of the corrugated ring sleeve 9. The corrugated ring sleeve 9 can be used for sealing the top plate 2 and the vehicle body 1 when stored to fill the sealing strip, reducing the probability of rainwater entering the vehicle body 1 from the gap between the top plate 2 and the vehicle body 1.

[0023] Reference Figure 1 and Figure 2 , a support rod 11 is rotatably provided at the top plate 2 near the width direction, and the support rod 11 is embedded in the side of the top plate 2 facing the vehicle body 1. In this embodiment, four support rods 11 are provided, and the four support rods 11 are rotatably provided on both sides near the width direction of the top plate 2, and the two support rods 11 on each side are hinged to one side. When the top plate 2 slides away from the vehicle body 1, the support rod 11 rotates and tilts under the action of gravity to abut between the top plate 2 and the vehicle body 1, and the support rod 11 is used to support between the top plate 2 and the vehicle body 1, and improve the structural strength between the top plate 2 and the vehicle body 1 when the top plate 2 slides away from the vehicle body 1; a skylight 12 is opened on the top plate 2, and a baffle 13 is slidably provided on the top plate 2, and a power member 14 is provided on the top plate 2. In this embodiment, the power member 14 uses an electric push cylinder, and the power member 14 drives the baffle 13 to slide. The baffle 13 opens or closes the skylight 12 by sliding, and the brightness inside the vehicle body 1 can be adjusted by opening and closing the window; the baffle When the sunroof 12 is opened, the driving rod 15 drives the supporting rod 11 to be stored in the top plate 2. When the sunroof 12 is opened, the driving rod 15 drives the supporting rod 11 to be stored in the top plate 2. When the sunroof 12 is opened, the driving rod 15 drives the supporting rod 11 to be stored in the top plate 2. When the sunroof 12 is opened, the driving rod 15 drives the supporting rod 11 to be stored in the top plate 2. When the sunroof 12 is opened, the driving rod 15 drives the supporting rod 11 to be stored in the top plate 2. When the sunroof 12 is opened, the driving rod 15 drives the supporting rod 11 to be stored in the top plate 2.

[0024] In other embodiments, the electric expansion structure of the RV also includes an environmental sensing module arranged in the vehicle body, the environmental sensing module is electrically connected to the processing terminal, the environmental sensing module includes a temperature sensor, a humidity sensor and a light sensor, the environmental sensing module is used to detect the temperature, humidity and light intensity inside the vehicle body, and send the detection information to the processing terminal, and the processing terminal adjusts the comfort level in the RV according to the environmental parameters, such as automatically controlling the air conditioning system and the lighting system.

[0025] Start the environment perception module, which includes a temperature sensor, a humidity sensor and a light sensor. These sensors are installed at different locations inside the RV to detect the internal environmental parameters of the RV; the temperature sensor detects the internal temperature of the vehicle body in real time, and sends the temperature data to the processing terminal through an electrical connection, and the processing terminal compares the current temperature with the set comfortable temperature range. The humidity sensor detects the internal humidity of the vehicle body in real time, and sends the humidity data to the processing terminal through an electrical connection, and the processing terminal compares the current humidity with the set comfortable humidity range. The light sensor detects the light intensity inside the vehicle body in real time, and sends the light intensity data to the processing terminal through an electrical connection, and the processing terminal compares the current light intensity with the set comfortable light conditions. The processing terminal comprehensively analyzes the temperature, humidity and light intensity data to determine whether it is necessary to start the air conditioning system to adjust the temperature and humidity in the car, or to start the lighting system to adjust the lighting in the car. If the detection result shows that the temperature in the car exceeds the preset range, the processing terminal starts the air conditioning system and adjusts the cooling or heating mode of the air conditioning according to the information fed back by the temperature sensor until the temperature in the car returns to the preset range. If the test results show that the humidity in the car is too high or too low, the processing terminal will start the dehumidification or humidification function of the air conditioning system to adjust the indoor humidity to an appropriate level. If the test results show that the light in the car is insufficient or too strong, the processing terminal will start the lighting system and adjust the brightness or on / off status of the lamps according to the data provided by the light sensor to ensure that the light in the car is moderate. When the roof is in the open state, the processing terminal will also determine whether it is necessary to open the sunshade on the sunroof or adjust the opening angle of the sunroof based on the data of the light sensor to maintain the comfort level in the car.

[0026] In other embodiments, the electric expansion structure of the RV also includes a security monitoring module arranged in the vehicle body, the security monitoring module is electrically connected to the processing terminal, the security monitoring module includes a camera, a smoke alarm and a door lock status detector, the security monitoring module is used to monitor the safety status of the vehicle and the surrounding environment, and send the monitoring information to the processing terminal, and the processing terminal issues an alarm or takes corresponding safety measures according to the safety status.

[0027] The camera installed in the vehicle body is used to monitor the video images in and around the vehicle, and transmit the real-time image information to the processing terminal through an electrical connection. The processing terminal uses an image recognition algorithm to analyze whether there is any abnormal situation. The smoke alarm installed in the vehicle body is used to detect whether there is a fire hazard. When the smoke concentration exceeds the preset threshold, the smoke alarm sends an alarm signal to the processing terminal through an electrical connection. After receiving the signal, the processing terminal immediately starts the emergency program and issues a fire alarm through the control panel. The door lock status detector is used to monitor whether the door is in a locked state. If it is detected that the door lock is illegally opened, the door lock status detector sends an alarm signal to the processing terminal through an electrical connection. After receiving the signal, the processing terminal issues an anti-theft alarm through the control panel. When the processing terminal receives the abnormal image information captured by the camera, the processing terminal will analyze the abnormal behavior in the image. If it is confirmed that there is a potential threat, the processing terminal will issue a warning message through the control panel and record the abnormal event. The processing terminal integrates information from the camera, smoke alarm and door lock status detector, evaluates the safety status in and around the vehicle, and decides whether to take further measures based on the evaluation results, such as sending an emergency notification to the owner through a wireless network.

[0028] In other embodiments, the electric expansion structure of the RV also includes an energy management module arranged in the vehicle body, the energy management module is electrically connected to the processing terminal, the energy management module includes a battery management system, a solar panel controller and a generator control system, the energy management module is used to manage and optimize the energy usage of the RV, and send energy status information to the processing terminal, and the processing terminal schedules energy supply according to the energy status.

[0029] In other embodiments, the electric expansion structure of the RV also includes a user interaction module arranged in the vehicle body, the user interaction module is electrically connected to the processing terminal, the user interaction module includes a touch screen, a voice recognition system and a mobile phone application program interface, the user interaction module allows the user to control various functions of the RV in an intuitive manner, and converts the user's instructions into signals that can be understood by the processing terminal.

[0030] In other embodiments, the RV electric expansion structure also includes a maintenance diagnosis module arranged in the vehicle body, the maintenance diagnosis module is electrically connected to the processing terminal, the maintenance diagnosis module includes a fault self-detection system and a remote service interface, the maintenance diagnosis module is used to regularly check the health status of the RV system and report the diagnosis results to the processing terminal, and the processing terminal reminds the user to perform maintenance or request remote technical support based on the diagnosis results.

[0031] In other embodiments, the electric expansion structure of the RV also includes an entertainment information system arranged in the vehicle body, the entertainment information system is electrically connected to the processing terminal, the entertainment information system includes an audio system, a television receiving device and an Internet access device, the entertainment information system is used to enrich the entertainment life in the RV, and the status of the entertainment information is fed back to the processing terminal, and the processing terminal adjusts the entertainment experience according to user preferences.

[0032] A control method for an electric expansion structure of a motorhome, comprising a processing terminal installed in a vehicle body 1, the processing terminal being electrically connected to a control panel, the control panel being arranged on a center console of a cab of the vehicle body 1, the processing terminal being electrically connected to a lifting member 32, an ultrasonic sensor 8, a power member 14, and a rodless electric cylinder 5 for driving a hinged platform 4 to slide, pressing a corresponding control button on the control panel to transmit an electrical signal to the processing terminal, the processing terminal controlling the opening and closing of the lifting member 32 and the power member 14 after processing the electrical signal, when it is necessary to expand the overall space of the vehicle body 1, the lifting rod 31 is synchronously lifted by driving two lifting members 32 at the same time, thereby lifting the top plate 2 as a whole, when it is necessary to expand the space in the front area of ​​the vehicle body 1, the lifting member 32 close to the front of the vehicle body 1 is driven, and the rodless electric cylinder 5 at the front of the vehicle is driven to adjust the position where the lifting rod 31 is hinged to the top plate 2 to avoid jamming, the lifting rod 31 close to the front of the vehicle body 1 is driven to slide so that the top plate 2 is lifted close to the front area, when it is necessary to expand the space in the rear area of ​​the vehicle body 1 , by driving the lifting member 32 near the rear of the vehicle body 1, and at the same time driving the rodless electric cylinder 5 at the rear of the vehicle to adjust the position of the lifting rod 31 hinged to the top plate 2 to avoid jamming, driving the lifting rod 31 near the rear of the vehicle body 1 to slide so that the top plate 2 is lifted near the rear area of ​​the vehicle. When it is necessary to lower the top plate 2 to store the support rod 11, the baffle 13 is driven by the power member 14 to open the sunroof 12, and the support rod 11 is driven to be stored in the top plate 2 before the top plate 2 is lowered. After the top plate 2 is lowered, the baffle 13 is controlled by the power member 14 to close the sunroof 12. The ultrasonic sensor 8 detects the distance between the top plate 2 and the object in the vehicle body 1 and feeds back the detection data to the processing terminal. When the distance reaches the preset value of the processing terminal, the processing terminal stops the operation of the lifting member 32 and feeds back the fault details to the control panel. In this embodiment, a warning light is set on the control panel. When the ultrasonic sensor 8 detects that the distance between the top plate 2 and the object in the vehicle body 1 reaches the preset value, the processing terminal will light up the warning light to remind the driver to troubleshoot the fault.

[0033] The implementation principle of the embodiment of the present application is as follows: when it is necessary to expand the overall space of the vehicle body 1, the two lifting members 32 are simultaneously started to synchronously lift the lifting rod 31, during which the corrugated ring 9 is stretched, and the support rod 11 rotates under the action of gravity, lifting the top plate 2 to a height slightly higher than the preset value and then lowering it to the preset value height, pressing the support rod 11 between the top plate 2 and the vehicle body 1 to complete the overall expansion of the vehicle body 1; when it is necessary to expand the space in the front area of ​​the vehicle body 1, the lifting member 32 close to the front of the vehicle body 1 is started and the vehicle body 1 is driven to move upward. The rodless electric cylinder 5 at the head adjusts the position of the lifting rod 31 hinged to the top plate 2, drives the lifting rod 31 close to the front of the vehicle body 1 to slide and lift the top plate 2 close to the front area of ​​the vehicle. During this period, the corrugated ring 9 is stretched, and the support rod 11 rotates under the action of gravity, lifting the top plate 2 to a height slightly higher than the preset value and then lowering it to the preset value height, pressing the support rod 11 between the top plate 2 and the vehicle body 1, completing the expansion of the front area of ​​the vehicle body 1; when it is necessary to expand the space of the rear area of ​​the vehicle body 1, the lifting member close to the rear of the vehicle body 1 is activated. 32, and at the same time, the rodless electric cylinder 5 at the rear of the vehicle is driven to adjust the position of the lifting rod 31 hinged to the top plate 2, and the lifting rod 31 near the rear of the vehicle body 1 is driven to slide so that the top plate 2 is lifted near the rear area of ​​the vehicle. During this period, the corrugated ring 9 is stretched, and the support rod 11 rotates under the action of gravity, lifting the top plate 2 to a height slightly higher than the preset value and then lowering it to the preset value height, pressing the support rod 11 between the top plate 2 and the vehicle body 1, and completing the expansion of the rear area of ​​the vehicle body 1; when it is necessary to lower the top plate 2 to store the support rod 11, the lifting member 3 is used to lift the top plate 2 to a height slightly higher than the preset value and then lower it to the preset value. 2 The top plate 2 is slightly lifted and the power member 14 is activated to drive the baffle 13 to open the sunroof 12, and the support rod 11 is driven to be stored in the top plate 2 before the top plate 2 is lowered. After the top plate 2 is lowered, the power member 14 controls the baffle 13 to close the sunroof 12. When the top plate 2 is lowered for too long, the ultrasonic sensor 8 detects the distance between the top plate 2 and the items in the vehicle body 1 in real time. When the distance reaches a preset value, the top plate 2 stops descending and warns the driver. When the driver eliminates the fault, the top plate 2 continues to descend until it is reset and stored.

[0034] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although the present application has been described in detail in this specification with reference to the above embodiments, a person of ordinary skill in the art should understand that a person of ordinary skill in the art can still modify or make equivalent substitutions to the present application, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. An electric expansion structure for a motorhome, comprising a body (1), characterized in that: A top plate (2) is slidably disposed on the top of the vehicle body (1), a driving assembly (3) is disposed between the top plate (2) and the vehicle body (1), the driving assembly (3) comprising a lifting rod (31) and a lifting member (32), the lifting rod (31) having four hingedly disposed at four corners of the top plate (2), the lifting rod (31) being slidably disposed on the vehicle body (1), the lifting member (32) having two respectively disposed on the top plate (2) near the front and rear of the vehicle, each of the lifting members (32) respectively driving two lifting rods (31) at both ends of the top plate (2) in the length direction, the two lifting members (32) synchronously lifting and driving the top plate (2) to rise and fall as a whole, and the two lifting members (32) respectively lifting and driving the top plate (2) to tilt and rise.

2. The electric expansion structure of a motorhome according to claim 1, characterized in that: An ultrasonic sensor (8) is installed on the side of the top plate (2) facing the vehicle body (1), and at least one ultrasonic sensor (8) is arranged on the top plate (2) near the front and rear of the vehicle. The ultrasonic sensor (8) detects the distance between the top plate (2) and an object in the vehicle body (1) and feeds back the detection data to a processing terminal. When the distance reaches a preset value of the processing terminal, the processing terminal stops the operation of the lifting member (32) and feeds back the fault details to a control panel of the processing terminal.

3. The electric expansion structure of a motorhome according to claim 2, characterized in that: A corrugated ring sleeve (9) is provided between the top plate (2) and the vehicle body (1); one end of the corrugated ring sleeve (9) is fixedly provided on the top plate (2), and the other end is fixedly provided on the vehicle body (1).

4. The electric expansion structure of a motorhome according to claim 3, characterized in that: The vehicle body (1) is provided with an embedding groove (10), and when the top plate (2) is attached to the vehicle body (1), the corrugated ring sleeve (9) is folded and stored in the embedding groove (10).

5. The electric expansion structure of a motorhome according to claim 4, characterized in that: A support rod (11) is rotatably provided on the top plate (2) near the width direction. The support rod (11) is embedded on the side of the top plate (2) facing the vehicle body (1). The top plate (2) slides away from the vehicle body (1), and the support rod (11) rotates and tilts to abut between the top plate (2) and the vehicle body (1).

6. The electric expansion structure of a motorhome according to claim 5, characterized in that: A skylight (12) is provided on the top plate (2), a baffle (13) is slidably provided on the top plate (2), a power member (14) is provided on the top plate (2), the power member (14) drives the baffle (13) to slide, and the baffle (13) opens or closes the skylight (12) by sliding.

7. The electric expansion structure of a motorhome according to claim 6, characterized in that: The baffle plate (13) is fixedly provided with a driving rod (15) facing the support rod (11); the baffle plate (13) slides to drive the driving rod (15) to drive the support rod (11) to be stored in the top plate (2).

8. The electric expansion structure of a motorhome according to claim 7, characterized in that: A connecting rod (7) is fixedly arranged between the two lifting rods (31) close to the front of the vehicle and between the two lifting rods (31) close to the rear of the vehicle, and the lifting member (32) is arranged on the connecting rod (7).

9. A control method for an electric expansion structure of a motorhome, which is used for the electric expansion structure of a motorhome according to claim 8, characterized in that: The invention comprises a processing terminal installed in a vehicle body (1), the processing terminal being electrically connected to a control panel, the control panel being arranged on a center console of a cab of the vehicle body (1), the processing terminal being electrically connected to a lifting member (32), an ultrasonic sensor (8) and a power member (14), and when a corresponding control button is pressed on the control panel, an electrical signal is transmitted to the processing terminal, and after the processing terminal processes the electrical signal, the lifting member (32) and the power member (14) are controlled to open and close, the ultrasonic sensor (8) detects the distance between the top plate (2) and an object in the vehicle body (1) and feeds back the detection data to the processing terminal, and when the distance reaches a preset value of the processing terminal, the processing terminal stops the lifting member (32) from working and feeds back the fault details to the control panel.

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