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: Foldable wall systems that greatly reduce traditional wall building processes are contemplated. Suitable foldable wall systems comprise a plurality of panels that form a wall. The panels can be stored or deployed from a housing that is mounted on one or more vertical columns. It is contemplated that the panels comprise one or more track elements that travel within one or more tracks to guide the panels between the stored and deployed configurations.

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: Collapsible building frame modules having first and second frame components are contemplated. One or more cross-link beams couple the first and second frame components. It is contemplated that the one or more cross-link beams slide along a frame component on one end and rotate with respect to a different frame component on an opposite end to thereby fold or unfold a building frame module. One or more building frame modules can be horizontally or vertically stacked to form a building frame or a portion of a building frame.

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: A kind of partition wall is introduced. The partition wall includes a housing, a roller wound with an inflatable wall body mounted inside the housing, and a shaft with a torsion spring mounted inside the roller. The inflatable wall body can be pulled out from the housing and can be rolled back to the housing by the torsion spring. The partition wall is rollable which offers people the chance to adjust their room space segmentation. It is also suitable for some small space such as a recreational vehicle or some mobile house. When people need to divide a bedroom from living room, they can expand out the partition wall.

Abstract: The present invention discloses a system for controlling vibration damping of a tractor rear hitch, and a tractor, in the technical field of vibration control for tractor rear hitches. The system includes: a tractor operation parameter acquisition device for acquiring operation parameters of a tractor; a controller for sending a control signal to an actuator based on the acquired operation parameters of the tractor according to a set vibration damping control strategy; and the actuator for controlling, based on the control signal sent by the controller, a quantity of hydraulic oil flowing into and out of a rodless cavity of a hitch oil cylinder of a rear hitch mechanism of the tractor, to allow for vibration damping of the rear hitch mechanism of the tractor and maintain the rear hitch mechanism within a set damping section, during transport.

Abstract: A rollable wall system includes a steel frame box, a roll-up wall mechanism, a horizontal self-adaptive rotating shaft, a pair of guiding columns, and two types of locking mechanisms. The roll-up wall mechanism includes several wall segments. There is a hinge between each two neighboring wall segments. The horizontal self-adaption shaft is connected to the uppermost wall segment of the wall mechanism. The rollable wall shaft is mounted in the steel frame box. When the shaft rotates, the wall mechanism will roll up and retract into the box. A locking mechanism is installed between the neighboring wall segments and at the bottom of the wall. The wall segments can be made of multiple interior layers.

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: 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 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: The present invention provides a power cable system prefabricated in a building structure, the building structure contains at least one floor, and each floor has at least one starting column, a plurality of main beams and a plurality of auxiliary beams, the main beams are connected with the starting column, and the auxiliary beams are respectively connected with the main beams and the starting column; wherein main wires, first secondary wires, second secondary wires, and third secondary wires are correspondingly prefabricated on the starting column, the main beams, and the auxiliary beams respectively. Through those structure, the workers can quickly construct a power cable system while construct the beam-column system, which can significantly improve the construction efficiency.

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.