15results about How to "Increase boost effect" patented technology

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 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 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 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 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 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.

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.

This utility model relates to the field of living furniture technology, specifically disclosing an easy-closing bed frame, comprising: a bed frame; a slatted frame located at the top of the bed frame; a gas spring, one end of which is hinged to the bed frame and the other end to the slatted frame; and a counterweight unit, comprising a counterweight assembly fixed to the slatted frame and a counterweight connecting rod hinged to the counterweight assembly and the gas spring. The gas spring has a retracted state that keeps the slatted frame closed relative to the bed frame, and an extended state that keeps the slatted frame open relative to the bed frame. The counterweight assembly is used to generate additional downward pressure on the slatted frame through its own weight, thereby reducing the external force required to switch from the extended state to the retracted state. The easy-closing bed frame provided by this utility model effectively solves the problem that existing storage beds require considerable effort to close the slatted frame.

The application discloses a kind of power-assisted exoskeleton devices, including: bottom plate, pedestal being arranged on the bottom plate, and seat cushion being fixed at the top of the pedestal;It further includes two groups of exoskeleton support structures arranged in the front side of the pedestal;The front end of each group of the exoskeleton support structure is further provided with pedal structure;It further includes meshing transmission assembly arranged between each group of the pedal structure and exoskeleton support structure.The application is realized by the exoskeleton support structure of two groups arranged, cooperate with the pedal structure arranged in the front end of exoskeleton support structure, to realize the support of patient lower limbs, and improve the power-assisted effect of hip, knee, ankle joint rigid support, and under the action of exoskeleton support structure, cooperate with meshing transmission assembly, further realize the range of motion training of patient lower limb joint, the device component structure is simple, and realizes the activity training of lower limb multi-joint, and the rehabilitation effect is remarkable, and practicality is high.

The utility model belongs to the technical field of reciprocating compressor, concretely relates to a high pressure nitrogen gas reciprocating compressor, include: driving motor, it is fixed on the base, as driving device, reciprocating compressor, it is fixed on the base, with driving motor is connected through the belt, the belt one end is equipped with the output of driving motor, the other end is equipped with the pulley on the side of reciprocating compressor, the utility model plays a certain buffer damping effect through the mode of belt drive, and improves the nitrogen pressure increasing capacity through changing the air inlet and outlet structure.