36results about How to "No harm will happen" patented technology

The invention discloses a passable railway wheel set maintenance platform with a rotary drive device, which includes a wheel rotary drive mechanism, a collinear wheel set entry track, a wheel set output track, a friction drive wheel 1 and a friction drive wheel 2 The anti-interference mechanism includes a hinged connection protection shaft, the wheel-in protection track and the wheel-out protection track; the anti-interference power mechanism includes a rotating rod and a first movable connecting rod, and the rotating rod is provided with a driven connecting rod and a driving connecting rod , the free end of the active connecting rod is hingedly connected with the telescopic end of the protective pressure cylinder; the push wheel mechanism includes a push wheel pressure cylinder and a horizontal beam, and the telescopic end of the push wheel pressure cylinder is fixed at the bottom of the horizontal beam , the end of the horizontal beam is connected to the free end of the second movable link. The invention can improve the automation degree of the wheel set flaw detection operation of the railway locomotive, so as to improve the operation safety and efficiency and reduce the operation energy consumption and labor intensity.

The invention discloses a pressure cooking appliance, which comprises: a pot body and a pot cover; a heater for heating the pot body; a cooler for cooling the pot cover; The control board is respectively connected with the heater and the cooler, and the controller controls the cooler to cool the pot body and / or the pot cover, so as to generate a temperature difference in the pot body to make the food in the pressure cooking appliance boil. The pressure cooking appliance of the present invention realizes rapid depressurization through the cooler, and uses the temperature difference between the upper and lower sides of the pot to form a tumbling boiling phenomenon during the depressurization process, without opening the exhaust valve, so that the fluid in the electric pressure cooker will not splash out , cleaner, and will not produce noise, and will not hurt people with steam, ensuring the safety of users. The invention also discloses a control method of the pressure cooking appliance.

A drilling tool with a slow starting circuit comprises a rectifying circuit, a positive voltage input end, a negative voltage input end, a single-pole double-throw switch, a selection unit, a motor, a drill bit and a control unit. The first end of the single-pole double-throw switch is connected with the positive voltage input end, the second end of the single-pole double-throw switch is connected with the negative voltage input end, and a common end of the single-pole double-throw switch is connected with the selection unit. The control unit is further connected with the positive voltage input end and used for detecting the polarity of the voltage output from the single-pole double-throw switch and sending out a delay control signal to the selection unit. The selection unit is connected with the motor, and the motor is connected with the drill bit. The selection unit is used for controlling the motor to rotate forwards and reversely according to the delay control signal so as to drive the drill bit to be lifted up or pressed down. The drilling tool with the slow starting circuit has the beneficial effects that the drill bit will make a response after a period of delay after the switch is pressed down, a worker then makes a response, the condition that the worker is hurt by a machine is avoided, and the safety of the worker is guaranteed.

The invention provides an automatic door. The automatic door comprises a door frame, a door fan movably connected with the door frame, and a driving unit for driving the door fan to move, and further comprises a light-emitting unit, a sensing unit and a control unit, wherein the light-emitting unit emits visible light; the light emitted by the light-emitting unit faces to a direction entering the automatic door and forms an included angle of 30-90 degrees with the horizontal direction; the sensing unit receives the light emitted by the light-emitting unit and sends out a signal; and the control unit controls the driving unit to drive the door fan to move according to the signal sent out by the sensing unit. The automatic door works in a way of sensing the visible light, the automatic door can be opened when the visible light enters the sensing range of the automatic door, and the automatic door is not closed within the sensing range, so that injury caused by mistaken closing is avoided; the used visible light is clean energy, so that no damage is caused; and the visible light can supply lighting, so that the utilization rate of resource is improved.

The invention relates to a seed coating agent for chemical weeding in sorghum fields and a herbicidal method. The sorghum seeds are coated according to a certain dose of fluorinated fluorine and other synergistic components, which are absorbed into the body during the germination process of the seeds, and can accelerate the metabolism of the seeds in the body Metolachlor, removes the harm of metolachlor to sorghum seedlings, and makes the seedlings grow normally; while the annual grass weeds and some broad-leaved weeds in the soil, such as goosegrass, crabgrass, daughter, Setaria, amaranth, purslane, etc., absorb metolachlor when they germinate, inhibit the synthesis of weed protein and die. The weeding method is economical, efficient, safe for sorghum growth, and has the effect of strengthening seedlings.