7results about How to "Avoid dry burn situations" patented technology

The utility model discloses a kind of electric hot water boiler water shortage protection devices, it is related to electric hot water boiler protection technical field.This kind of electric hot water boiler water shortage protection device, including water heater, the inside of water heater is provided with storage cavity, the inside of storage cavity is movably sleeved with lifting piece, the top of lifting piece is movably sleeved with short-circuit blocking piece and liquid valve switch piece;The lifting piece includes floating plate, rod A, rod B, connecting plug, the inside of storage cavity is movably sleeved floating plate.This kind of electric hot water boiler water shortage protection device, when the liquid of floating plate bottom is exhausted and is moved down by gravity, drives rod A, rod B and connecting plug synchronous motion, makes the internal circuit of insulation box disconnect and form open circuit, can automatically cut off power when liquid is insufficient, effectively avoid equipment dry burning condition to occur, not only guarantee equipment operation safety, prevent element damage due to dry burning, also significantly prolong the service life of equipment, reduce use risk and maintenance cost.

The utility model discloses a rotary evaporator, which relates to the technical field of rotary evaporators and comprises a base, a base is fixedly mounted at the center of the top of the base, an adjusting table is fixedly mounted at one end of the top of the base, a control panel is arranged on one side of the adjusting table, and an adjusting mechanism is arranged in the adjusting table. A rotator is arranged at the front end of the adjusting table, a supplementing mechanism is arranged in the base, and a rotating bottle is arranged at one end of the rotator. According to the rotary evaporator, through the arrangement of the adjusting mechanism, when a rotary bottle needs to be disassembled and assembled, a lifting screw rod is driven to rotate through a meshing structure between a rotating bevel gear and a linkage bevel gear, the position of a rotating device is driven to ascend and descend through a lifting block, and the height of the rotary bottle is driven to ascend through the rotating device; therefore, the distance between the bottom of the rotary bottle and the heating pot is enlarged, the rotary bottle can be conveniently disassembled and assembled, and the rotary bottle cannot directly make contact with the heating pot in the disassembling and assembling process.

The present invention discloses a pump for a washing device, comprising a pump body; a pump cavity for containing liquid is arranged in the pump body; a liquid inlet and a liquid outlet connected to the pump cavity are arranged on the pump body; an impeller connected to a motor is arranged in the pump cavity; and a heating component is also arranged extending from the outside of the pump body to the pump cavity to heat the liquid in the pump cavity; a temperature switch arranged on the pump body to monitor the temperature of the liquid in the pump cavity and a first pressure switch to sense the liquid level in the pump cavity and connected to the heating component; the impeller divides the pump cavity into a first chamber close to the liquid inlet and a second chamber away from the liquid inlet; and the heating component is arranged in the second chamber. The present invention provides a pump for a washing device, which reduces the volume of the pump body, increases the washing accommodation space of the washing device, and at the same time improves the flow field in the pump cavity by improving the structure of the impeller, and makes the thermal field in the pump cavity more uniform by changing the structure of the heating component.

The utility model discloses an anti-dry-burning rice steaming cabinet which is characterized in that the inner surface of a cabinet body is provided with a heating groove, the inner surface of the heating groove is fixedly connected with a heating plate, the inner surface of the cabinet body is provided with a sliding groove, the inner surface of the cabinet body is fixedly connected with a dripping cone, the inner surface of the cabinet body is fixedly connected with a drainage pipe, and the drainage pipe is fixedly connected with a water outlet. The drainage pipe is located below the dripping cone, the other end of the drainage pipe is located above the heating groove, air holes are formed in the cabinet body, the front surface of the cabinet body is rotationally connected with a cabinet door, and through the components, the water amount in the heating groove can be effectively kept stable, and the dry burning risk caused by insufficient water level is reduced.

The present invention discloses a pump for a washing device, comprising a pump body; the pump body forms a pump cavity for containing liquid by means of a first pump shell and a second pump shell that are fastened together; the pump body is provided with a liquid inlet and a liquid outlet that are connected to the pump cavity; the pump cavity is provided with an impeller that is connected to a motor; and further comprises a heating component that extends from the outside of the pump body to the pump cavity to heat the liquid in the pump cavity; a first pressure switch that is provided on the pump body and connected to the heating component; the impeller divides the pump cavity into a first chamber close to the liquid inlet and a second chamber away from the liquid inlet; the heating component is provided in the second chamber; and a circulation hole that is provided on the impeller body so that the liquid in the second chamber flows back to the impeller and flows out from the liquid outlet. The present invention provides a pump for a washing device, which reduces the volume of the pump body, improves the flow field in the pump cavity by improving the structure of the impeller, and makes the heat field in the pump cavity more uniform by changing the structure of the heating component.

The utility model discloses an atomization device which comprises a main shell, an atomization assembly, an oil storage assembly and a flow guide structure. The atomization assembly is arranged in the main shell; the oil storage assembly is used for storing an atomized substrate and is detachably connected with the main shell; the flow guide structure is arranged between the oil storage assembly and the atomization assembly to form a transverse liquid guide channel, the atomization substrate is conveyed to the atomization assembly through the transverse liquid guide channel, the flow guide structure comprises a capillary structure and / or a Tesla valve, and the Tesla valve is in the cut-off direction in the liquid guide direction of the transverse liquid guide channel. The flow guide structure transversely guides liquid and comprises the capillary structure, the problem that oil cannot pass through due to air trapping in an oil passing channel possibly caused by gravity liquid guide of an oil supplementing channel of an existing product can be solved, and stable liquid guide between the oil storage assembly and the atomization assembly can be achieved through the flow guide structure.

This application relates to a sensing device and a water heater. The sensing device includes: a rod body erected inside the cavity of an appliance, the bottom of the rod body being connected to the appliance, and liquid being present inside the cavity to form a liquid surface; a buoyancy member slidably connected to the rod body, capable of moving along the rod body following the liquid surface; and a sensing element disposed at the top of the rod body, the sensing element being able to sense the buoyancy member when it rises to a preset height, and outputting a feedback signal. In this application, the buoyancy member rises and falls synchronously with the liquid surface based on density difference, and its position change directly reflects the liquid level. By sensing the position of the buoyancy member, the start and stop of the appliance can be controlled according to the liquid level inside the appliance, effectively preventing dry burning, extending the life of the heating element, and reducing maintenance and energy costs.