7results about How to "Safe and reliable performance" patented technology

The utility model discloses a convection assembly for preventing microwave leakage and cooking equipment, the convection assembly comprises an inner plate, a fan and a motor main body, the inner plate is configured to be a part of a cooking liner; the fan is arranged on one side of the inner plate and located in the cooking inner container. The motor body is arranged on the other side of the inner plate and located outside the cooking inner container. The motor further comprises a motor shaft arranged on the motor body, a through hole is formed in the inner plate, and the motor shaft penetrates through the through hole and is connected with the fan. The motor shaft is made of a non-metal material. Therefore, the metal motor shaft penetrating through the through hole is replaced by the non-metal shaft, and the non-metal shaft is non-conductive and cannot form an antenna effect to lead out the microwaves, so that the microwaves can be prevented from leaking at the through hole to the greatest extent, the influence on the body health of a user is avoided, and the product performance is better and safer.

The application provides a pressure regulating valve structure, which comprises a pressure regulating valve shell; a dial plate is arranged on the top of the pressure regulating valve shell, the dial plate is connected with the pressure regulating valve shell through a speed increasing mechanism, and a pointer is arranged between the dial plate and the speed increasing mechanism; the lower end of the speed increasing mechanism is connected with a spring seat, and the upper end is connected with an outer sleeve nut; the spring seat is movably connected with the pressure regulating valve shell, and a valve is connected with the spring seat through a spring at the bottom of the spring seat; the speed increasing mechanism comprises a driving rod and a driven rod, the lower end of the driving rod is connected with a plurality of gear wheels, and the upper end of the driven rod is a gear end which is meshed with the plurality of gear wheels. The speed increasing mechanism of the application transmits the rotation of the driving rod to the driven rod after speed increasing, and then drives the spring seat to move and compress the spring, so that the driving rod only needs to rotate less than one circle to meet the pressure regulation in the range of the pressure regulating valve; the dial plate and the pointer cooperate with the speed increasing mechanism to realize the visualization of the pressure setting of the pressure regulating valve.

The utility model discloses an operating mechanism device of automatic transfer switching equipment. The operating mechanism device comprises a shell, a handle, a main circuit system, a first power supply closing coil, a second power supply closing coil, a tripping coil, a first connecting rod, a second connecting rod, a first power supply movable iron core, a second power supply movable iron core, a tripping movable iron core and a locking fastener. According to the operating mechanism device of the automatic transfer switching equipment, the main circuit system is arranged to carry out power-on control on different coils, so that the movable iron cores corresponding to the coils are controlled to move, and the handle is located at different positions; the switching action of the operating mechanism device of the automatic transfer switching equipment at the first switching-on position, the second switching-on position and the double-off position is realized, the operation is simple and convenient, and the performance is safe and reliable. And the operating mechanism device is small in size and can be suitable for household indoor box and guide rail type installation.

This utility model provides a pneumatic brake assist system, belonging to the technical field of winch braking systems. It includes a brake handle, a brake lever, a brake band, and a brake drum. The brake handle is connected to the brake band via the brake lever, and the brake band covers the outer circumference of the brake drum. It also includes: a cylinder, one end of which is hinged to a mounting platform, and the other end to the brake lever; an air tank, which is connected to the rodless chamber of the cylinder via an air inlet line; a gas pressure regulating valve, which is connected in series on the air inlet line; and a linkage, which moves with the rotation of the brake handle and drives the gas pressure regulating valve to adjust the gas flow from the air tank to the cylinder according to the rotation angle of the brake handle. This utility model, through the linkage of a cam and the gas pressure regulating valve, adjusts the assist level by adjusting the angle of the brake handle, achieving precise adjustment of the winch speed. It has a simple and compact structure, low cost, and reliable performance.

The invention discloses an energy recovery method, device and equipment based on a power battery pack and a storage medium, relates to the technical field of energy recovery, and discloses the energy recovery method based on the power battery pack. Comprising the following steps: acquiring current energy recoverable power, current energy recoverable power information, current energy recovery power and current cell voltage of a power battery pack; according to the current energy recycling power, the current cell voltage and the current energy recycling power information, the current energy recycling power is adjusted step by step, and the adjusted current energy recycling power is obtained; and controlling the current energy recovery power based on the adjusted current energy recoverable power so as to complete energy recovery based on the power battery pack. According to the scheme, the overvoltage risk in the high SOC state can be effectively avoided while the energy recovery efficiency is guaranteed.

The utility model aims to provide a hoisting device for overhauling a drilling pump, and belongs to the technical field of petroleum drilling and production equipment. The device comprises a lower bracket, an inverted L-shaped upper bracket, a slewing bearing for connecting the lower bracket and the upper bracket, and a positioning device for fixing the rotating position of the upper bracket, a guide rail beam is arranged on the top of the upper support, a guide rail pulley moving along the guide rail beam is arranged on the guide rail beam, and a chain block is connected below the guide rail pulley. The upper support and the lower support are connected through the slewing bearing, low-resistance smooth rotation of the upper support within the range of 360 degrees is achieved by means of the multi-direction load bearing characteristic of the slewing bearing, and meanwhile unbalance loading vibration in hoisting operation is effectively restrained; by combining the eyelet bolt and a clamping groove locking structure of the positioning disc, high-rigidity fixing of the rotating position is achieved, and the problems of rotating clamping stagnation and positioning failure of a traditional sleeve type device are solved. The device is simple in structure and safe and reliable in performance.

The application provides a novel mechanical hydraulic shock absorber and an assembling and using method thereof. The shock absorber sequentially comprises a shock part, an exciting part, a hydraulic part and a balancing part. The upper joint of the shock part is connected with a shock rod through thread I and is fastened by an elastic cylindrical pin I. The shock rod is connected with an impact rolling joint through thread II and is fastened by an elastic cylindrical pin II. A supporting wheel is slid into a main cylinder after being installed in the impact rolling joint. An upper cover is connected with the main cylinder through thread III after passing through the shock rod and being installed with small steel balls, and is locked by a jackscrew II and pressed at the end of the upper cover. The shock absorber has simple overall structure, reasonable design and convenient operation. The shock absorber can ensure normal working conditions in a vertical shaft, a horizontal well and a deviated well and can adapt to various complex and harsh well conditions and has safe and reliable performance.