45results about How to "Avoid impact collision" patented technology

The invention discloses a washing machine with an automatic opening/closing machine cover, belongs to a household electrical appliance, and solves the problem existing in the prior art that the machine cover cannot be automatically opened and closed. The washing machine mainly comprises a casing and a control seat arranged on the top of the casing, a control unit is arranged in the control seat, the control seat is provided with an operation panel, the control seat is provided with a clothes putting opening, the control seat is connected with a machine cover through a rotating shaft, the control seat is provided with a motor which drives the rotating shaft to rotate around the axial direction of the rotating shaft, the motor is electrically connected with the control unit, the rotating shaft is provided with an angle transducer which monitors the rotation angle of the rotating shaft, the angle transducer is electrically connected with the control unit, and the control unit controls the output torque of the motor in dependence on angle signals fed back by the angle transducer. Furthermore, the invention also provides a control method of the above washing machine. The washing machine with the automatic opening/closing machine cover is mainly used for washing clothes.

The invention discloses a locatable high-strength wear-resistant and super-tough hard box. The locatable high-strength wear-resistant and super-tough hard box comprises a box body, rolling wheel assemblies and telescopic pull rods, wherein the box body is composed of a bottom box and a box cover, the side wall of one side of the bottom box is rotatably connected with the side wall of the corresponding side of the box cover through a plurality of hinges, the side wall, opposite to the hinges, of the bottom box is connected with the side wall of the corresponding side of the box cover in an opening-closing manner through a plurality of coded locks, one rolling wheel assembly is fixedly connected to each of four corners of the bottom of the bottom box, the telescopic pull rods are mounted on the rear wall of the bottom box, a first wear-resistant wrap corners wraps each of the four connecting parts of the rear wall and the peripheral side walls of the bottom box, an external storage bag is arranged on the front of the outer side of the box cover, clasping devices are symmetrically arranged at the two sides of the upper end of the box body, and a box sleeve containing groove is arranged at the lower end of the bottom box. The locatable high-strength wear-resistant and super-tough hard box is strong in functionality, and has the advantages of light weight, high temperature resistance, scraping and wearing resistance, aging resistance, electricity and heat conduction, corrosion resistance, large elasticity, high compression strength, high toughness and high shock resistance.

The invention discloses a cargo air pressure fixing system in cold-chain logistics pipeline transportation. The cargo air pressure fixing system is arranged in a cold-chain conveyor; the cold-chain conveyor runs in a cold-chain transmission pipeline; the cold-chain transmission pipeline is configured to be a guide channel of the cold-chain conveyer; a cold-chain cargo compartment is arranged in the cold-chain conveyer; a cold-chain cargo is loaded in the cold-chain cargo compartment; the cargo air pressure fixing system is used for fixing the cold-chain cargo in the cold-chain cargo compartment; the cargo air pressure fixing system comprises an axial cold-chain cargo fixing device, a circumferential cold-chain cargo air pressure fixing device, an end pressing device and a selectively-configurable axial cold-chain cargo partition device; the limitation of a fluid pipeline is broken through the system, so that the pipeline transmission of the cold-chain cargo is realized, the comprehensive protection in the axial direction and the circumferential direction of the cold-chain cargo in the pipeline transportation are further realized, the collision damage is avoided, the flexible partition can be carried out according to the size, the type and the like of the cargos, the cargo capacity is increased, and the space utilization rate and the transportation efficiency are improved.

The invention provides a combined connection device for preventing a piston from rotating in the radial direction and moving in the axial direction. The combined connection device mainly comprises a cylinder barrel, a piston rod, a locking nut, an elastic gasket, an elastic check ring, a sealing ring, a buffer sleeve and the piston. The piston is formed by combining a piston disc A and a piston disc B. The combined connection device is characterized in that the piston is prevented from rotating in the radial direction and moving in the axial direction by means of a shaft shoulder of the piston rod, the locking nut, the elastic gasket with a protrusion, and torsional deformation of the elastic gasket. The weight of the piston is reduced without loss of strength through the hollow cylindrical piston discs provided with supporting columns; the elastic gasket, the protrusion on the elastic gasket, the shaft shoulder of the piston rod and the locking nut prevent the piston from rotating in the radial direction and moving in the axial direction; and the piston discs are prevented from impacting and colliding with each other through the buffer sleeve between the piston discs.

The invention relates to the technical field of temperature measurement of rotary kilns, and provides a self-driven direct temperature measurement device for a rotary kiln. The self-driven direct temperature measurement device for the rotary kiln comprises a rotary driving motor, a screw rod, a fixed installation base, a thermoelectric couple and a sleeve pipe. The rotary driving motor, the screw rod and the thermoelectric couple are mounted on the fixed installation base, and the fixed installation base is fixed to the side wall of the rotary kiln. The rotary driving motor drives the screw rod to rotate. The sleeve pipe is arranged outside the thermoelectric couple in a sleeving mode and stretches into a temperature measurement through hole formed in the side wall of the rotary kiln. A screw groove in threaded fit with the screw rod is formed in the outer surface of the sleeve pipe. The sleeve pipe is driven by the screw rod to reciprocate periodically in the axial direction of the temperature measurement through hole. According to the self-driven direct temperature measurement device for the rotary kiln, materials entering the temperature measurement through hole are removed automatically through movement of the sleeve pipe, the temperature measurement through hole is prevented from being blocked by material lumps, and thus the service life and temperature measurement precision of the thermoelectric couple are guaranteed.

The invention belongs to the technical field of hydraulic valves, and discloses a combination flow control valve of a double pump. The combination flow control valve comprises a valve body, a valve element and a control rod. An opening A, an opening B and an opening T are arranged on the valve body. The control rod is located in the valve body and can do axial relative movement relative to the valve body. The valve element is of a disc type structure and is arranged on the control rod in the valve body in a sleeved manner, and the valve element is driven to rotate when the control rod axiallymoves. An arc groove and an auxiliary hole which are communicated through an inner duct are formed in the work end face of the valve element. In the process that the valve element rotates around the control rod, the opening B is communicated with one of the opening A and the opening T through the arc groove and the auxiliary hole, or the opening B, the opening A and the opening T are communicatedat the same time. When the opening B is communicated with the opening A through the arc groove, the opening T and the auxiliary hole keep closed. When the opening B is communicated with the opening Tthrough the arc groove, the opening A and the auxiliary hole keep closed or communicated. The combination flow control valve of the double pump is small in structural size and low in manufacturing cost, and multiple control functions can be achieved at the same time.

The invention belongs to the technical field of metal smelting, and discloses a movable cover vehicle and a treatment method for water-containing flying dust in a steel slag hot disintegration process. The treatment method for the water-containing flying dust in the steel slag hot disintegration process comprises the following steps that 1), the movable cover vehicle is arranged above a hot disintegration pool, steel slag is poured into the hot disintegration pool, and the movable cover vehicle protects the steel slag pouring process; 2), the steel slag poured into the hot disintegration poolis cooled by spraying by using a spraying device; 3), dust removal treatment is carried out on the generated water-containing flying dust; 4), dehydration treatment is carried out on the water-containing flying dust subjected to the dust removal treatment; and 5), gas subjected to the dust removal treatment and the dehydration treatment is exhausted. The treatment method for the water-containing flying dust in the steel slag hot disintegration process can effectively treat the water-containing flying dust in the steel slag hot disintegration process, so that the treated gas can reach emissionstandards.

The invention discloses a concrete mixing device, which comprises a base, a bracket and a water tank. A switch is embedded on the surface of the base, a telescopic rod is fixedly installed on the top end of the base, and a telescopic rod is fixedly installed on the bottom end of the base. There is a support, the bottom of the support is welded with a support seat, the bottom of the support is provided with a discharge port, one side of the discharge port is screwed with a control knob, and the top of the support is provided with a stirring The main body of the device, the inside of the main body of the stirring device is provided with a stirring chamber. The outer wall of the main body of the mixing device is covered with sound-absorbing cotton, which can well reduce the noise pollution generated during the operation of the device and avoid affecting the normal life of the surrounding residents. The inner wall of the main body of the mixing device is covered with a rubber layer, which has the function of buffering concrete impact and anti-corrosion. Corrosion ability, through the installation of positive bearings and counter bearings, the stirring rods and stirring blades on the positive bearings and counter bearings rotate clockwise and counterclockwise, uniformly mix, fully mix the concrete, and improve the quality of the concrete.

The invention provides a grinding head device capable of precisely controlling a sensing quantity. The grinding head device comprises an accommodating frame, a movable bracket and a controller; the accommodating frame and the movable bracket are slidingly connected in a first straight direction and a second straight direction; the accommodating frame is provided with a first driving module and a second driving module, connected with the controller, in the first straight direction; and the accommodating frame is provided with a third driving module and a fourth driving module, connected with the controller, in the second straight direction. The grinding head device further comprises a first sensing module and a second sensing module. The grinding head device further comprises a polishing piece and an electric main shaft; the electric main shaft is connected between the surface, far from the accommodating frame, of the movable bracket and the polishing piece; the electric main shaft drives the movable bracket to move; and the controller controls the electric main shaft to stop rotating. The grinding head device can prevent the impact commission of the electric main shaft during polishing of castings to the greatest extent, improves the polishing quality, and effectively protects polishing equipment.