Abstract: A mobile expandable structure can expand both outward, from at least one side thereof, and rearward, from a back side thereof. When expanded, the mobile expandable structure can provide an expansion of about 2.5 to about 3 times the original living space provided by the main structure. The structure may be on an electric chassis and the structure can include a solar array that is disposed, in the stowed configuration, over the main structure. The solar array is expandable to cover some or all of the expansion sections when in the expanded configuration. The expansion sections can include pivotable floor members that pivot downward upon expansion of each 10 expansion section. Side walls of the side expansion may be unfolded to provide sides of the side expansion section.

Abstract: A sofa bed can solve the problem of where to place a sofa in a smaller space or inside a recreational vehicle. The sofa can be completely flattened out to become a sofa bed. When not needed or when space is limited, the sofa bed can be folded directly against the wall. The sofa bed can include a back support cushion, a seat cushion and a leg rest. The back support and seat cushions can be supported by a frame underneath. A system of spring-loaded rods can be under the leg rest. These parts can be completely flattened or turned into a sofa, with the leg rests covering the frame underneath the sofa. The sofa can be folded to the wall, controlled by hydraulic rods at the bottom. The legs of the sofa bed and the hydraulic rods can be designed to not protrude from the wall when folded.

Abstract: An expandable home structure can expand outward from at least one side thereof to expand the living space once the home is delivered to a desired location. The expansion process includes raising two roof panels from a side edge of its main structure, where the roof panels follow a track so that an outer one of the two roof panels can, once fully raised, slide outward along front and rear walls of the expansion section so that the roof panels form a box gable roof structure over the expansion section.

Abstract: A foldable enclosure can turn an outdoor spa or swimming pool into its indoor counterpart, allowing the pool or spa to be used when the outdoor temperature is cold or when the weather is bad. An expandable room-like structure can cover the pool or spa in the back yard of the house. When the structure is not used, it can be retracted so it does not occupy much space in the house or in the back yard. The enclosure can include a sliding cover that can be used to cover up the pool and to allow people to walk on it. The expandable structure includes a sliding outer wall, two rotating side walls, a sliding wall seal, and several roof blocks.

Abstract: An expandable home structure includes a main structure and a first expansion section that is expandable outward in a first direction from a first side of the main structure. Once the expansion section is expanded, coverage members can unfold from a bottom of the floor member and the floor member can be lowered within the unfolded coverage members, thus providing a sunken floor for the expanded section. The floor member may fold vertically against the main section in the folded configuration. After the front and rear walls are unfolded from the main section, the outer wall of the expansion section can be moved outward from the main section to cause the floor member to lower into its horizontal, expanded, and raised position. The coverage members can be unfolded from the bottom of the floor member and the floor member can be lowered.

Abstract: A mechanical foundation component includes a support ring, a plurality of rotary shafts, a plurality of blades, a plurality of blade gears, a gear ring, a cylindrical housing, and a control rod with a drive gear; the control rod can control the blade fold inside or unfold outside the mechanical foundation component. Several mechanical foundation components form a root-like mechanical foundation. The corresponding control rods control the gears of different mechanical foundation components. The blades can be expanded after the foundation is punched into the ground.

Abstract: A self-cleaning foldable solar panel system with a foldable support system and a self-cleaning unit is provided. The foldable support system is composed of a main support board, a first support board, and a second support board. The solar panels of the array are mounted on support frames of the support boards by means of worm wheels. The folding support system allows the solar panels to save space when they are not in use. The support frame provides tilt angle adjustment for the solar panels. The worm wheels allow the solar panel to be adjusted to rotate horizontally. The reciprocating motion and rotation of the rotary brush that works when the system is in folded status make it possible to keep the system clean by brushing it automatically. Compared to traditional solar panels, the present self-cleaning foldable solar panel system is portable, angle-adjustable, and self-cleaning.

Abstract: A detachable storage space, such as a movable closet, can be mounted on the back of a vehicle, such as a recreational vehicle. The detachable storage space differs from a trailer, which can lead to a worse driving experience. When the detachable storage space is mounted on the vehicle, it will be similar to a spare tire mounted on a back of a sport-utility vehicle, for example. A lifting structure on the backside of the vehicle can lift the detachable storage space and lock it on the vehicle structure. The detachable storage space can include wheels and a small motor to permit users to move and control it remotely.

Abstract: An adjustable awning has no longitudinal linkage, which makes efficient use of space, can be assembled with a collapsible roof as a whole, increasing the function of the collapsible roof, and can be unfolded together with the collapsible roof, controlled by a mechanism inside the collapsible roof, and the control mechanism can be adjusted to select whether the awning is linked to the roof or not. The horizontal adjustable awning includes an internal control mechanism, a main transmission mechanism and a folding mechanism. The internal control mechanism includes a spring roller, a drive belt, a belt end block and a block snap; the main transmission mechanism includes a pulley, a filament rod, a shade cloth mechanism, a bearing housing, a rack and pinion mechanism and a gear housing; the folding mechanism includes two rotating pushers, two articulated sliders and a protective plate.

Abstract: An advanced chassis structure design offers more battery storage spaces than same-class electric vehicles. The chassis structure provides four battery storage spaces. The significance of these additional storage areas lies in their direct impact on extending the driving range of the vehicle. The chassis structure design further addresses the issue of battery replacement in an electric vehicle chassis. Typically, when an electric vehicle runs out of battery, it takes several minutes or even hours for the battery to be fully recharged. When the battery is broken, the replacement process often involves significant disassembly, which is also time-consuming. With the chassis structure design, the battery is positioned underneath the chassis and fastened within the battery tray and protective battery case. This means that when it comes to battery replacement, the battery can be swapped just by removing a few screws.

Abstract: An electric vehicle chassis includes multiple battery compartments specifically arranged therein. The chassis can include a main structure extending longitudinally along a length of the electric vehicle which it supports. The main structure can include a first, upper main structure battery compartment. A lower main structure frame can be disposed below the first, upper main structure battery compartment to provide a second, lower main structure battery compartment. Side battery compartments can be attached to opposite sides of the main structure frame to provide third and fourth, side battery compartments. Thus, the vehicle chassis can provide four distinctly positioned battery compartments for the placement of batteries for the electric vehicle, providing more battery storage spaces than conventional same-class electric vehicles.

Abstract: A foldable satellite dish is provided. The foldable satellite dish has a dish reflector assembly a support housing, and a driving mechanism. The dish reflector assembly comprises four quarter circle shape dish sectors that can be folded and deployed by the driving mechanism. The foldable satellite dish can deploy and fold automatically and smoothly. All the quarter circle shape dish sectors will be secured by the driving mechanism. Compared to traditional satellite dish, the present invention is more flexible and easier to use.

Abstract: A sofa bed can solve the problem of where to place a sofa in a smaller space or inside a recreational vehicle. The sofa can be completely flattened out to become a sofa bed. When not needed or when space is limited, the sofa bed can be folded directly against the wall. The sofa bed can include a back support cushion, a seat cushion and a leg rest. The back support and seat cushions can be supported by a frame underneath. A system of spring-loaded rods can be under the leg rest. These parts can be completely flattened or turned into a sofa, with the leg rests covering the frame underneath the sofa. The sofa can be folded to the wall, controlled by hydraulic rods at the bottom. The legs of the sofa bed and the hydraulic rods can be designed to not protrude from the wall when folded.

Abstract: A retractable roof construction can be manufactured in a factory and quickly deployed when assembling the house. The retractable roof can be made in parts and assembled into its compact formation whilst in the factory. This compact formation reduces space occupied in shipment, reducing the overall cost. When the compact formation roof is on a construction site, the roof can expand on both sides and be raised in the middle to provide an angle to protect against the rain. The expending process can be automated for reducing labor used in the construction. When compared to traditional roof construction, the retractable roof construction allows fast installation as well as reduced cost, both in shipping and labor.

Abstract: A sealing arrangement can be used to provide a seal between two adjacent structural elements, such as between two walls. The sealing arrangement may be particularly useful for expandable structures, such as expandable mobile homes, recreational vehicles, or the like. The sealing arrangement can include a first wall member that can provide a retractable seal that may extend outward from a face of the wall, toward a second wall member. The second wall member can include a door-covered opening along its end face that can receive the retractable seal from the first wall member. The second wall member may include upper and lower lids that automatically extend outward when the retractable seal is inserted into the opening. Air vents may be provided in the walls to provide air exchange.

Abstract: An expandable kitchen includes an expandable kitchen cabinet and a movable kitchen table. In the compacted state, an outer kitchen cabinet may be disposed adjacent other cabinets, while the kitchen table may be disposed over other cabinets and/or the kitchen sink. In the expanded state, the outer kitchen cabinet may be moved away from the other kitchen cabinets and the table may be expanded both radially and longitudinally to provide a table surface. A shelving unit may be movable to provide an extension to the table top. During movement of the shelving unit, the shelves May remain horizontal so that the shelf can be easily converted into a table top without the need for moving items on the shelves.

Abstract: A mobile expandable structure can expand both outward, from at least one side thereof, and rearward, from a back side thereof. When expanded, the mobile expandable structure can provide an expansion of about 2.5 to about 3 times the original living space provided by the main structure. The structure may be on an electric chassis and the structure can include a solar array that is disposed, in the stowed configuration, over the main structure. The solar array is expandable to cover some or all of the expansion sections when in the expanded configuration. The expansion sections can include pivotable floor members that pivot downward upon expansion of each 10 expansion section. Side walls of the side expansion may be unfolded to provide sides of the side expansion section.

Abstract: An expandable home structure includes a main structure and a first expansion section that is expandable outward in a first direction from a first side of the main structure. Once the expansion section is expanded, coverage members can unfold from a bottom of the floor member and the floor member can be lowered within the unfolded coverage members, thus providing a sunken floor for the expanded section. The floor member may fold vertically against the main section in the folded configuration. After the front and rear walls are unfolded from the main section, the outer wall of the expansion section can be moved outward from the main section to cause the floor member to lower into its horizontal, expanded, and raised position. The coverage members can be unfolded from the bottom of the floor member and the floor member can be lowered.

Abstract: An expandable home structure can expand outward from at least one side thereof to expand the living space once the home is delivered to a desired location. The expansion process includes raising two roof panels from a side edge of its main structure, where the roof panels follow a track so that an outer one of the two roof panels can, once fully raised, slide outward along front and rear walls of the expansion section so that the roof panels form a box gable roof structure over the expansion section.

Abstract: A foldable satellite dish is provided. The foldable satellite dish has a dish reflector assembly a support housing, and a driving mechanism. The dish reflector assembly comprises four quarter circle shape dish sectors that can be folded and deployed by the driving mechanism. The foldable satellite dish can deploy and fold automatically and smoothly. All the quarter circle shape dish sectors will be secured by the driving mechanism. Compared to traditional satellite dish, the present invention is more flexible and easier to use.