35results about How to "Increase boost effect" patented technology

The invention discloses a lower limb power-assisted exoskeleton robot, which belongs to the technical field of robots and comprises a hip joint assembly worn at a hip joint of a human body, a left leg assembly which is positioned on two sides of the hip joint assembly and is worn on a left leg, and a right leg assembly which is worn on a right leg, each of the left leg assembly and the right leg assembly comprises a thigh connecting rod, a shank connecting rod and a shoe body assembly which are sequentially hinged, the upper end of the thigh connecting rod is hinged to the side face of the hip joint assembly, and a first driving mechanism for driving the thigh connecting rod to rotate is arranged on the side face of the hip joint assembly; inclined driving pieces for driving the shank connecting rods to move are arranged between the hip joint assemblies and the shank connecting rods, the upper ends of the inclined driving pieces are hinged to the side faces of the hip joint assemblies, and the lower ends are hinged to the middles of the shank connecting rods; the lower limb power-assisted exoskeleton robot further comprises a sensor used for detecting uplifting of the thighs and / or the shanks. The power assisting device is simple in structure, reasonable in layout, low in cost and good in power assisting effect.

The invention relates to the technical field of household appliances, in particular to cleaning equipment and a control method thereof.The cleaning equipment comprises a body, a power assisting device and a control device, the power assisting device comprises a power assisting wheel arranged on the body and a driving assembly driving the power assisting wheel to move, and the control device comprises a touch screen and a controller; the touch screen is arranged on the handle and used for detecting a touch signal, and the controller controls the driving assembly to work based on the touch signal detected by the touch screen. According to the power assisting device control method and device, control over the power assisting device is achieved through interaction between the touch screen and the user, response delay of the power assisting device during equipment motion state switching is reduced, the control effect of the power assisting device is improved, the touch screen is arranged on the handle, the user can achieve accurate control over the power assisting device without additional operation, and the user experience is improved. In addition, the movement speed and the steering direction of the power assisting device can be accurately adjusted and controlled, and the power assisting effect and the cleaning efficiency of the cleaning equipment are improved.

The invention relates to the technical field of hydrogen internal combustion engines, in particular to a device for increasing the tail gas temperature of a hydrogen internal combustion engine and enhancing pressurization and a control method thereof. Comprising the steps that an exhaust hydrogen combustion device and an electronic control unit are additionally arranged on an original exhaust manifold of an internal combustion engine, an auxiliary combustion chamber is installed on the upstream of a turbocharger, the oxygen exhaust flow is calculated through an exhaust flow sensor and an oxygen concentration sensor, the hydrogen spraying flow of a hydrogen nozzle is determined, and hydrogen-air mixed gas is ignited through a sparking plug; therefore, the tail gas enthalpy value of an inlet of the turbocharger is increased through combustion of hydrogen in the auxiliary combustion chamber, the supercharge ratio is increased, and then the inflation efficiency and the power density of the hydrogen internal combustion engine are improved.

A brake handle with a dynamically variable rotation center in the braking process comprises a brake shell, a piston assembly, a push rod assembly, a brake handle, a multi-fulcrum linkage component and a rotation switching mechanism. The shell is provided with a piston cavity. The handle drives the piston to move through the push rod. The linkage component is provided with two rotating fulcrums, and the switching mechanism can switch two working states. When the front section of the handle is pinched, the handle rotates around the first fulcrum, idle stroke is eliminated, and operation is labor-saving. When the rear section is pinched, the second fulcrum is switched to rotate, and the lever ratio is increased to improve braking force. By means of automatic switching of double fulcrums, labor-saving control and large braking force output are both considered, and the problem that a traditional hydraulic brake handle is poor in performance is solved; the modular structure is easy to adapt to mass production, and switching nodes are accurate and controllable; a locking and failure protection structure is arranged, so that the operation is stable and safe; meanwhile, eccentric wear of parts is eliminated, the service life of sealing pieces is prolonged, and braking efficiency and use safety are improved.

The application provides a low-temperature liquid two-stage supercharging system and a low-temperature liquid two-stage supercharging assembly. The low-temperature liquid two-stage supercharging system comprises a piston cylinder, a piston cavity is arranged in the piston cylinder; a piston is arranged in the piston cavity and movably connected with the piston cavity, so as to divide the piston cavity into a low-pressure cavity and a high-pressure cavity; a first liquid inlet and a first liquid outlet communicating with the low-pressure cavity and a second liquid inlet and a second liquid outlet communicating with the high-pressure cavity are arranged in the side wall of the piston cylinder; the first liquid inlet communicates with a liquid inlet pipe, a first one-way valve is arranged in the liquid inlet pipe; a through pipe is arranged between the first liquid outlet and the second liquid inlet; a second one-way valve is arranged in the through pipe; the second liquid outlet communicates with a liquid outlet pipe; and a third one-way valve is arranged in the liquid outlet pipe. A transmission shaft is movably connected with the piston cylinder at the first end and fixedly connected with the piston in the high-pressure cavity; and a driving assembly is drivingly connected with the second end of the transmission shaft. The application can achieve higher supercharging effect.

The invention discloses a lower limb exoskeleton trajectory customization method and device based on a generative model, equipment and a storage medium, and belongs to the field of assistance equipment, and the method comprises the steps: generating first step phase feedback data of a user in response to first mechanical feedback between the lower limb of the user and an exoskeleton in a first walking process of the user in a first walking state; determining an abnormal evaluation index value of the first walking behavior according to the first step phase feedback data; and adjusting the first feedback value according to the abnormal evaluation index value so as to reduce the abnormal evaluation index value. Based on the method provided by the embodiment of the invention, the individuation and real-time optimization of the exoskeleton equipment are realized through the real-time adjustment of the anomaly detection and the feedback value, the response capability and applicability of the power assisting equipment are improved, the defects in real-time optimization and individualized customization in the prior art are made up, and the user experience is improved. The problems that an existing power assisting device is single in power assisting mode and insufficient in universal power assisting effect are solved.

The utility model discloses an MIM (metal injection molding) turbocharging blade, which relates to the technical field of turbocharging blades and comprises a connecting seat, a group of blades are fixedly connected to the annular side surface of the connecting seat, two reinforcing ribs are fixedly connected between the group of blades, a group of grooves for turbulent flow are formed in the surface of each reinforcing rib, and a fixing rod is fixedly connected to the lower surface of the connecting seat. A connecting shaft is arranged on the lower surface of the fixing rod, the annular side face of the fixing rod is sleeved with a threaded ring in a threaded mode, the grooves in the surfaces of the blades can disturb airflow, the airflow forms a specific flow state on the surfaces of the blades, and the change of the flow state can increase the turbulence degree of the airflow and promote mixing of boundary layers. When the airflow flows through the blades, the airflow can flow in a mode of being attached to the surfaces of the blades, separation of the airflow on the surfaces of the blades and generation of vortexes are reduced, air resistance is reduced, the aerodynamic efficiency of the blades is improved, and then the turbocharging effect is enhanced.

The present invention discloses a stable water curtain water outlet device, comprising a water outlet body and a rotating member; the water outlet body is provided with a water passage cavity, and the bottom wall and side wall of the water passage cavity are respectively provided with a water outlet channel and an inclined water channel; the rotating member is provided with an impeller corresponding to the inclined water channel and is suitable for rotating around a first axis relative to the water outlet body, and extends into the water outlet channel and forms a water outlet gap with the water outlet channel, and is also provided with a first water outlet hole along the first axis, one end of the first water outlet hole is connected to the water chamber, and the other end discharges water; the rotating member is also provided with a second water outlet hole located between the first water outlet hole and the water outlet gap; the second water outlet hole is arranged around the first water outlet hole, one end of the second water outlet hole is connected to the water chamber, and the other end discharges water. The water curtain water shape of the water outlet device of the present invention is stable and the structure is simple.

The present invention discloses an energy collection and vehicle fault monitoring system for active vibration reduction. In the present invention, the slide bar fixed on the upper pressure plate and the lower slide groove constitute a sliding pair; the slide bar is sleeved with a vibration reduction spring; one end of the left and right wing support plates are respectively hinged to the two sides of the lower slide groove; the left ratchet is hinged to the other end of the left wing support plate and connected through a left torsion spring; the right ratchet is hinged to the other end of the right wing support plate and connected through a right torsion spring; the middle of the left and right wing support plates are connected through a balance spring; the ratchet is fixed on the input shaft of a micro-generator; the power output end of the micro-generator is connected to an energy storage battery; the monitoring system collects the electrical signal output by the micro-generator, and monitors and analyzes vehicle faults. The present invention can collect vibration energy within half a cycle of vibration of the vehicle's entire suspension system, has a high energy conversion rate, and has an active vibration reduction effect, can provide a stable output voltage, and can perform fault detection of the vertical stiffness of the suspension without detecting the suspension system.

The application relates to a knee joint rehabilitation training auxiliary system and method, which comprises a central control module connected with a surface electromyogram sensor, a man-machine interaction interface and a mechanical driving module; an angle encoder is connected with the man-machine interaction interface; the surface electromyogram sensor is used for acquiring the surface electromyogram of the user's leg in real time; the angle encoder is used for acquiring the actual joint bending angle of the user in real time; the man-machine interaction interface is used for acquiring the training mode information, training time and ideal joint bending angle input by the user, and displaying the actual joint bending angle of the user; the training mode information comprises an active training mode or a passive training mode; the central control module is used for calculating a motor speed signal according to the training mode information, training time, actual joint bending angle of the user, surface electromyogram of the user's leg and ideal joint bending angle input by the user; and the mechanical driving module is used for assisting the user in rehabilitation training according to the motor speed signal, so that the knee joint rehabilitation training of the user can be assisted.

The utility model discloses a power assisting device for opening and closing a cold storage door, which belongs to the technical field of cold storage doors and comprises a door frame, a door groove formed in the surface of the door frame, a baffle fixedly connected to the surface of the door frame and a door body mounted on the surface of the door frame. The transmission output end of the servo motor is in transmission connection with a threaded rod; an inner threaded sleeve is fixedly connected to the surface of the door body, the threaded rod penetrates through the inner threaded sleeve and is in transmission connection with the inner threaded sleeve, and the inner threaded sleeve extends to the inner position of the door body. When the door needs to be opened, the servo motor is started through external control equipment, and the door body is pulled to slide relative to the door frame under the transmission action of the threaded rod and the inner threaded sleeve; the guide holes are symmetrically formed in the surface of the door body, the polish rods are inserted into the guide holes and arranged in a sliding mode, the polish rods support and guide the door body in an auxiliary mode, the stability in the moving process is improved, and the good power assisting performance is achieved.

The invention discloses an active waist assisting exoskeleton device which comprises a trunk assembly, a waist assembly and leg rod assemblies. The trunk assembly is fixedly connected with the waist assembly through a threaded fastener, the leg rod assembly is connected with the waist assembly through a motor, when a human body starts to lift goods from a bending or squatting posture, the motor generates power-assisted torque, and the power-assisted torque is converted into lifting force for lifting the goods through the trunk part and the waist connecting part, so that carrying assistance is achieved. According to the waist assisting exoskeleton, the assisting effect of the waist assisting exoskeleton is improved, and the operation convenience is improved.

The utility model relates to a power-assisted motor control system of a photoelectric torque sensor, which is mounted at pedals of a bicycle, pedal handles are fixed at two ends of a pedal spindle, an outer sleeve is sleeved on the pedal spindle, a power-assisted motor is mounted on a rear wheel of the bicycle, the power-assisted motor is in communication connection with a motor control unit and a battery pack, and an inner sleeve is further arranged between the pedal spindle and the outer sleeve. The torque spring is sleeved and fixed on the pedal shaft; a hanging strip for hooking a spring hook of the torque spring is arranged on the inner side surface of the inner sleeve; a middle hole of the inner light-blocking disc is pressed on the outer side surface of the inner sleeve; when a pedal force is applied, under the action of the torque spring, the inner light blocking disc and the outer pulse disc respectively rotate along with the inner sleeve and the pedal shaft to form a relative displacement angle. The signal board for sending and receiving the photoelectric signals is used for detecting the relative displacement angle and sending the detected signals to the motor control unit of the power assisting motor, intelligent power assisting in the bicycle riding process is achieved, and the riding experience is improved.

The present invention relates to the technical field of booster pumps, and discloses a multi-stage booster pump and a method of using the same, comprising a main body and a connecting back plate, wherein the connecting back plate is fixedly connected to the top of the main body, and further comprising a booster pump mechanism, wherein the booster pump mechanism is arranged on the top of the main body, and the booster pump mechanism comprises a pump body. The present invention drives the extended water outlet cylinder to slide inside the limiting slideway on the inner wall of the water outlet butt joint pipe, so that the water outlet butt joint pipe extends outward, and at the same time drives the sliding limiting connecting ring to pass through a plurality of sliding holes and slide on the outer wall of the water outlet butt joint pipe, and stretches the booster spring, when the extraction speed of the stabilizing slide bar and the pumping device inside the water inlet channel is too low, after the water is pressurized by the pump body and enters the water outlet butt joint pipe and the extended water outlet cylinder, a secondary boosting can be performed before the water is discharged, thereby improving the boosting effect, thereby avoiding the phenomenon that the sprayed water is intermittent due to the large opening of the water outlet pipe connecting frame of the pump body, thereby affecting the boosting effect of the booster pump.

The invention provides a supercharged type novel fan. The supercharged type novel fan comprises an outer main body provided with an air duct, rotating fan blades rotationally arranged in the outer main body, a supercharged cover detachably connected to the outer main body in a butt joint mode, and a guide assembly used for further guiding air input into the air duct by the rotating fan blades to the supercharged cover. Through the arrangement of the first flow guide piece located in the air duct and the second flow guide piece located in the pressurizing cover, and the first flow guide piece is provided with the first flow guide blades which are relatively inclined, airflow can be guided to flow along a more optimized path, turbulence of the airflow and generation of vortexes are reduced, and the pressurizing effect is further improved; and the second flow guide blades of the second flow guide piece are located between the pressurizing cover and the wind cutting blades, airflow can be evenly guided out from the air outlet end, it is ensured that pressurized air flows more stably, the long-distance air supply effect of improving the air speed is facilitated, drainage adjustment can be conducted on air in an air duct, and the turbulent flow phenomenon can be obviously reduced.

The utility model provides a leg cover module and exoskeleton equipment, and belongs to the technical field of exoskeletons. The leg cover module comprises an adjusting assembly, a connecting rod and a bandage assembly. The adjusting assembly comprises a guide rail piece and a sliding piece which are in sliding connection in the front-back direction of a user, and one of the guide rail piece and the sliding piece is connected with the connecting rod. The connecting rod is located on the front side or the rear side of the leg of a user, and the bandage assembly is connected with the connecting rod. The bandage assembly is used for making contact with the leg in an attached mode in the wearing state. The leg cover module has the advantages of being simple in structure and large in adjusting range, compatibility to the legs of the user is better, and the wearing comfort and the power assisting effect of the exoskeleton equipment can be improved.

The application relates to the technical field of medical devices, and provides a clamping device for a bedside attached rail, a base assembly and a clamping mechanism; the clamping mechanism comprises a movable piece, an intermediate piece and a driving piece; the movable piece, the intermediate piece and the driving piece are respectively rotationally connected to form a linkage structure, and the base assembly is provided with a protruding part; the movable piece is matched with the protruding part during movement and is used for clamping the attached rail. In this way, the clamping device adopts a linkage mode to clamp the attached rail, the clamping force of the structure is controllable, the damage to the attached rail is small, and the clamping device is simple to operate and requires a small operation space.

The invention provides a low-temperature liquid two-stage supercharging system and a low-temperature liquid two-stage supercharging assembly. The low-temperature liquid two-stage supercharging system comprises a piston cylinder, a piston rod and a piston rod, the piston is arranged in the piston cavity and movably connected with the piston cavity, the piston cavity is divided into a low-pressure cavity and a high-pressure cavity, a first liquid inlet and a first liquid outlet which are communicated with the low-pressure cavity and a second liquid inlet and a second liquid outlet which are communicated with the high-pressure cavity are formed in the side wall of the piston cylinder in a penetrating mode, and the first liquid inlet is communicated with a liquid inlet pipe; a first one-way valve is arranged in the liquid inlet pipe, a conducting pipe is communicated between the first liquid outlet and the second liquid inlet, a second one-way valve is arranged in the conducting pipe, the second liquid outlet is communicated with the liquid outlet pipe, and a third one-way valve is arranged in the liquid outlet pipe; the first end of the transmission shaft penetrates through the piston cylinder, is movably connected with the piston cylinder and is fixedly connected with the piston in the high-pressure cavity; the driving assembly is in driving connection with the second end of the transmission shaft. According to the invention, a higher supercharging effect can be realized.

The application discloses a mechanical structure of a flexible power-assisted exoskeleton system and a control method thereof, and the mechanical structure comprises an actuating unit box, a driving device, a main controller, a power module, an intention detection component and a power-assisted unit; the body function of a user can be enhanced under different environments, including climbing, crawling, going upstairs and downstairs; the control method is characterized in that an inertial measurement unit is fixed on each main limb of the human body, and the real-time measured limb posture data are transmitted to the main controller; the main controller performs mean filtering and preprocessing on the data, so that the credibility of the data is enhanced; the main controller obtains the corresponding human motion phase according to the posture analysis of different human motions; finally, the main controller sends a driving signal to the driving device according to a preset power-assisted strategy, and the motor rotates according to the signal, so that power assistance is achieved. The application has the advantages of simple algorithm, high real-time performance, strong stability, low hardware cost, low hardware demand and easy engineering application implementation.

This utility model discloses a low-boiling-point working fluid circulation booster device for a ground source heat pump, belonging to the field of ground source heat pump booster technology. The circulation pipeline is connected to a main connecting pipe via a first multi-connector pipe. Multiple second control valves are connected to the side wall of the main connecting pipe. Each second control valve is connected to a second connecting pipe, and each second connecting pipe is connected to a booster pump. A first control valve is connected to the booster pump via a first connecting pipe. The multiple first control valves are connected to a connecting main pipe, which is connected to a pressure tank via a connecting pipe. The use of multiple booster pumps enhances the system's boosting capacity. In high-altitude areas, even if one pump fails, it can be quickly replaced without affecting system operation. The number of pumps can be adjusted according to altitude to ensure efficient system operation. The pressurization and depressurization mechanisms work together to enhance system flexibility and reliability. Different needs can be quickly adapted by adjusting the valves. All pipe connections have sealing rings to ensure sealing and reliability, preventing working fluid leakage.

The utility model relates to gas water heating equipment, which is characterized in that a pressurizing component is additionally arranged in the gas water heating equipment, and water in a water storage tank is directly conveyed into a water inlet pipe through a water pump. In the pressurization process, water in the cold water pipe flows out of the water inlet pipe, and the water pump can input water in the water storage tank into the water inlet pipe through the pressurization pipe so as to achieve pressurization. Due to the fact that water in the water storage tank is stored in advance, the water flow during bathing can be effectively increased and is not affected by external water pressure and water supply capacity, for example, the water pressure or the water supply capacity is insufficient, the pressurization effect is effectively improved, and the water use requirement of a user is met.

The utility model discloses an anti-rust gas water heater valve which comprises a valve body seat, a stainless protective sleeve and a brass valve element piece, a sealing hemisphere seat is installed in the middle of the bottom end of the valve body seat, a right-angle connecting rod is arranged at one end of the sealing hemisphere seat, and a gas concentration display screen is arranged at one end of the right-angle connecting rod. An electrode terminal connected with the fuel gas concentration display screen is arranged in the right-angle connecting rod, and one end of the electrode terminal penetrates through the interior of the valve body seat and is provided with a fuel gas concentration probe. The right-angle connecting rod is arranged at one end of the sealing hemisphere seat, the right-angle connecting rod is connected with the fuel gas concentration display screen and the electrode terminal connected with the fuel gas concentration display screen, one end of the electrode terminal penetrates through the interior of the valve body seat, and the fuel gas concentration probe is arranged, so that a good fuel gas concentration monitoring effect can be achieved; and a threshold gas concentration alarm is given through a warning lamp, so that potential risks caused by increase of the internal pressure of the pipeline are avoided.

The utility model discloses a supercharged motor that can reduce noise. The supercharged motor comprises a shell, a rotor assembly, a stator assembly and an impeller. The shell is provided with an air duct. The air duct is provided with a mounting pipeline. The stator assembly comprises a stator core and a coil winding wound on the stator core. The outer end surface of the stator core and the inner end surface of the mounting pipeline are integrated. The other end of the mounting pipeline is sleeved with a bearing seat. The rotor assembly comprises a shaft and a magnet fixedly installed on the shaft. One end of the shaft penetrates through the center of the bearing seat and is connected with the impeller. The utility model directly integrates the stator core and the mounting pipeline, so that the position deviation of the stator core during subsequent installation or work can be avoided, and the occurrence of electromagnetic noise can be avoided. The same axis design ensures the stability of the rotation of the impeller, thereby reducing noise.

The utility model provides a low-pressure gas supercharging device with multiple supercharging structures, which comprises a casing, a driving motor is mounted on the outer wall of the casing, an output shaft of the driving motor is fixedly connected with a linkage rod through a coupler, the outer wall of the linkage rod is fixedly connected with a semicircular driving plate, a connecting shaft is arranged on the outer wall of the semicircular driving plate, and the semicircular driving plate is fixedly connected with the connecting shaft. A driving rod is installed on the outer wall of the semicircular driving plate through a connecting shaft, one end of the driving rod is fixedly connected with a pressurizing piston, an air inlet pipe is installed on the outer wall of the machine shell, one end of the air inlet pipe is fixedly connected with a mechanical worm gear, and the outer wall of the mechanical worm gear is connected with an air inlet flange through the air inlet pipe; compared with the prior art, the pressurizing device has the advantages that pressurizing operation can be carried out through the multiple pressurizing structures, the pressurizing operation can be carried out in a separated mode, the pressurizing operation can also be carried out in a combined mode, and therefore the gas pressure in the pressurizing device can be increased.

The invention belongs to the field of shoe manufacturing, and particularly relates to an insole material, a preparation method thereof and a shoe. The preparation method comprises the following steps: molding a polymer material into an insole shape by adopting a molding process to obtain a sub-blank; placing the sub-blank in a high-pressure container, injecting supercritical gas into the high-pressure container, and filling the sub-blank to obtain a sub-blank filling material; and after filling is completed, pressure reduction is conducted on the high-pressure container, the supercritical gas is gradually recovered to be in a gaseous state and escapes from the filling sub-blank material so that the sub-blank can be foamed, the filling sub-blank material forms a micropore structure in the gas escaping process, curing is completed, and the insole material is obtained. By means of the technology, the performance of the shoe insole can be remarkably improved, including but not limited to improvement of the buffering performance, improvement of the rebound resilience and prolonging of the service life, meanwhile, light weight of the insole is achieved, and the environment-friendly requirement is met to a certain degree.

The faucet comprises a faucet shell, a water outlet nozzle and a water path adapter are arranged in the faucet shell, the water outlet nozzle is provided with a water outlet and a hot water inlet, and the water path adapter is provided with a hot water inlet channel communicated with the hot water inlet. At least partial area of the hot water inlet channel forms a pressurizing cavity, a protruding water retaining part is arranged in the pressurizing cavity, and the water retaining part can form resistance to liquid entering the pressurizing cavity. Hot water enters the pressurizing cavity when passing through the hot water inlet channel, the water retaining part forms resistance to the hot water entering the pressurizing cavity, and the water flow pressure of the instant heating body connected to the upstream of the water path adapter is increased, so that the pressure intensity in the instant heating body is higher than the normal pressure, and the boiling point of water flow in the instant heating body is also higher than the boiling point under the normal pressure; and the boiling point of the water is also increased along with the increase of the pressure, so that the instant heating body can heat the water to be not less than 100 DEG C during heating so as to really boil the hot water.

This utility model provides a multi-stage water pump, belonging to the field of water pump technology. It solves the problem of insufficient rectification effect of the diffuser in existing water pumps. This utility model includes a pump cover, pump casing, volute, multi-stage impeller assembly, pump shaft, and bearing housing. The multi-stage impeller assembly is installed inside the pump casing and includes a diffuser and impeller body. The diffuser is an integrally formed structure and includes a front diffuser end and a rear diffuser end. A rear diffuser blade is formed on the front side of the rear diffuser end and is connected to the rear side of the front diffuser end. A rear diffuser flow channel is formed between the front and rear diffuser ends. A cavity is formed on the front side of the front diffuser end, and a mounting seat is formed inside the cavity. The impeller body is installed in the mounting seat. Several front diffuser blades are formed inside the front diffuser end, and several diffusion windows are opened on the outer surface of the front diffuser end. A front diffuser flow channel is opened inside the front diffuser end and is connected to the diffusion windows. This utility model has the advantages of high structural strength and good diffuser rectification effect.

The application discloses a waist exoskeleton assembly and wearable exoskeleton, and relates to the technical field of exoskeletons, wherein the waist exoskeleton assembly is used for connecting a back exoskeleton assembly and a hip exoskeleton assembly, the waist exoskeleton assembly comprises a first connecting part connected with the hip exoskeleton assembly, a second connecting part connected with the back exoskeleton assembly, the second connecting part is rotationally connected with the first connecting part, and a torsion unit elastically connects the first connecting part and the second connecting part, so that the second connecting part has a tendency of returning when the second connecting part rotates relative to the first connecting part. The technical scheme provided by the application can assist in rotating and returning and reduce the force burden of the waist when the wearer returns.

The present invention relates to the field of vehicle steering systems, and in particular to a dual-circuit steering hydraulic system for vehicles, which can improve the steering assist when heavy vehicles are steering, making the steering of vehicles more labor-saving. A dual-circuit steering hydraulic system for vehicles includes a dual-circuit steering gear, a first power-boosting pump, a first oil tank, a first power-boosting cylinder, a second power-boosting pump, a second oil tank and a second power-boosting cylinder. The first power-boosting pump, the first oil tank and the first power-boosting cylinder are connected to form a first circuit, and the second power-boosting pump, the second oil tank and the second power-boosting cylinder are connected to form a second circuit. The dual-circuit steering gear is connected between the first power-boosting pump and the first power-boosting cylinder, and between the second power-boosting pump and the second power-boosting cylinder. By driving different power-boosting cylinders respectively through two hydraulic circuits, the steering axle is assisted respectively, and the steering power of the steering axle can be increased. Using a dual-circuit steering system can control two steering hydraulic circuits at the same time, and the complexity of the operation remains unchanged.

The present invention discloses an exoskeleton device for upper limb load-bearing assistance, comprising an exoskeleton binding module sleeved on the back of a human body, an upper limb module sleeved on the left and right arms of a human body and providing a power drive function, and an automatic young fruit bagging machine body for a human body to carry, wherein the exoskeleton binding module comprises a binding sleeve at the upper end and a power module installed at the lower end on the back of the binding sleeve for providing power supply and whole device control functions, wherein the binding sleeve is a Y-shaped structure on the back of a human body, an H-shaped structure on the chest of a human body, and the bottom end is a flexible human-like structure that fits the human body configuration, and the power module is fixed on a circular ring-shaped structure at the center of the back. The exoskeleton device for upper limb load-bearing assistance provides assistance to the upper limbs of a human body through electric control, so that it can be more conveniently applied to a young fruit bagging machine.