Abstract: The present invention provides a method for depth removal of a volatile organic compound (VOC) in polymer resins and products thereof by means of a steam distillation method and apparatus thereof and significantly reducing the odor of the polymer resins and products thereof. The method provided in the present invention can further remove residual inorganic ash in the polymer resins. In the method, saturated steam at a certain temperature continuously keeps in contact with materials for a certain period of time, the VOC and an inorganic small molecule (ash) adsorbed on the surface of a polymer and wrapped inside the polymer are promoted to be enriched in a gas phase or a liquid phase and discharged, so as to reduce the VOC and ash in polymer materials, and the odor of the polymer resins or materials is decreased to a better level.

Abstract: The present disclosure relates to an LED vehicle lamp with a frustum base plate. The LED vehicle lamp includes a base plate, a circuit board and a plurality of LED chips. The base plate is a frustum base plate. The frustum base plate is arranged on an axis of the LED vehicle lamp. A width of an upper bottom surface of the frustum base plate is smaller than that of a lower bottom surface of the frustum base plate. An axis of the circuit board is parallel to an axis of the frustum base plate. A width of the circuit board is smaller than that of the upper bottom surface of the frustum base plate. The circuit board is installed on the upper bottom surface of the frustum base plate, and the plurality of LED chips are installed on the circuit board.

Abstract: The present disclosure relates to a pumping assembly, a piston pump and a water flosser. The pumping assembly includes: a cylinder, at least two chambers with different inner diameters being provided in the cylinder; a piston mechanism successively extending through the at least two chambers, the piston mechanism being in slidable cooperation with walls of the chambers, and a gap being formed between a sidewall of part of the piston mechanism and the walls of the chambers; and a drive mechanism connected to the piston mechanism, the drive mechanism being configured to drive the piston mechanism to move.

Abstract: The present disclosure relates to a pumping assembly, a piston pump and a water flosser. The pumping assembly includes: a cylinder, at least two chambers with different inner diameters being provided in the cylinder; a piston mechanism successively extending through the at least two chambers, the piston mechanism being in slidable cooperation with walls of the chambers, and a gap being formed between a sidewall of part of the piston mechanism and the walls of the chambers; and a drive mechanism connected to the piston mechanism, the drive mechanism being configured to drive the piston mechanism to move.

Abstract: The present disclosure relates to compounds of formula (I) and pharmaceutical compositions thereof and methods for inhibiting the activity of SHP2 phosphatase with the compounds and compositions of the disclosure. The present disclosure further relates to, but is not limited to, methods for treating disorders associated with SHP2 deregulation with the compounds and compositions of the disclosure.

Abstract: The present disclosure relates to a pumping assembly, a piston pump and an oral irrigator. The pumping assembly includes: a cylinder, cavities providing therein with at least two cavities with different inner diameters; a piston mechanism successively extending through the at least two cavities, the piston mechanism being in slidable cooperation with walls of the cavities, and a gap being formed between a sidewall of part of the piston mechanism and the walls of the cavities; and a drive mechanism connected to the piston mechanism, the drive mechanism being configured to drive the piston mechanism to move.

Abstract: The present application provides an oral irrigator which includes an irrigator body. The irrigator body includes a water tank, a nozzle, and a cathode plate and an anode plate are provided spaced apart from each other at a bottom of the water tank. The anode plate and the anode plate are electrically connected to a negative electrode and a positive electrode of a power supply component of the oral irrigator, respectively. A water outlet of the water tank is located at the bottom of the water tank. Water in the water tank is electrolyzed by the cathode plate and the anode plate to generate ozone water and hydrogen-rich water, and flow out from the water outlet to the nozzle of the irrigator body to be sprayed out, aiming to solve a problem that the existing oral irrigator only uses water flow for physical cleaning.

Abstract: The present application relates to the field of oral care products, and more particularly to an oral irrigator. The oral irrigator comprises: an irrigator body, and a generator arranged inside the irrigator body. The irrigator body comprises: a water tank, a nozzle, and a driving assembly. The water tank is configured to accommodate an electrolyte. The generator is configured to electrolyze the electrolyte to generate ozone water and hydrogen-rich water. The electrolyte of the water tank is driven by the driving assembly to enter the generator, electrolyzed in the generator, such that a resulting electrolyzed ozone water and hydrogen-rich water are sprayed out from the nozzle of the irrigator body. In this way, it is solved the technical problem that the existing oral irrigator only uses a water flow for physical cleaning.

Abstract: The present invention provides a simulated inflatable wheel including a rim, a filler tire mounted on the rim, and a tire casing covering the filler tire and having a rolling portion in rolling contact with the external environment and an abutting portion extending from two sides of the rolling portion. The abutting portion is located between the rim and the filler tire. The abutting portion abuts against the rim and the filler tire respectively. A recessed portion is formed on at least one position of an outer surface of the filler tire. The present invention utilizes the recessed portion of the filler tire to generate space between the filler tire and the rim (or the tire casing), for providing a buffer when the filler tire is deformed and improving elasticity of the filler tire. The present invention further provides a stroller including the simulated inflatable wheel.

Abstract: The present application discloses dust boxes, dust box assemblies and cleaning devices, wherein the dust box assembly includes a dust box and at least two fans. The dust box is formed with a holding cavity, a dust suction port and at least two air outlets, the dust suction port is connected to the holding cavity, the at least two air outlets are connected to the holding cavity. At least two fans are provided corresponding to at least two air outlets for creating an airflow that passes through the dust suction port, the holding chamber and the air outlet in sequence.

Abstract: The present application relates to an oral irrigator, the oral irrigator includes at least a main body, a partition wall, a sterilization portion, and a control main board. By providing the partition wall, the first cavity and the second cavity are separated from each other, and the spray head is separately accommodated in the second cavity, and the first cavity is provided with the sterilization portion corresponding to the second cavity. The sterilization portion includes a UV lamp module. The second cavity and the spray head are sterilized through the UV lamp module, which effectively reduces the secondary pollution of the flushing fluid.

Abstract: The present application discloses a cleaning device and its dust box. The cleaning device may comprise a body, a dust box, and at least two fans. The dust box may be provided for connection to the body, the at least two fans are provided in the body for forming an airflow into and out of the dust box through the apparatus body. The dust box may be provided such that the airflow formed by each of the at least two fans can flow out of the dust box in different directions.

Abstract: The present disclosure relates to an LED vehicle lamp with a frustum base plate. The LED vehicle lamp includes a base plate, a circuit board and a plurality of LED chips. The base plate is a frustum base plate. The frustum base plate is arranged on an axis of the LED vehicle lamp. A width of an upper bottom surface of the frustum base plate is smaller than that of a lower bottom surface of the frustum base plate. An axis of the circuit board is parallel to an axis of the frustum base plate. A width of the circuit board is smaller than that of the upper bottom surface of the frustum base plate. The circuit board is installed on the upper bottom surface of the frustum base plate, and the plurality of LED chips are installed on the circuit board.

Abstract: The present invention discloses a welding method of a demetallized ceramic substrate having a surface capillary microgroove structure. The demetallized ceramic substrate includes a ceramic substrate main body and surface capillary microstructures. The surface capillary microstructures are arranged on two lateral sides of the ceramic substrate main body and the surface capillary microstructures specifically are capillary microgrooves. The welding method includes the following steps: fixing a chip to an upper surface of the demetallized ceramic substrate having the surface capillary microgroove structure, fixing the ceramic substrate with the chip to a printed circuit board having a bonding pad, and placing melted solder on the bonding pad, and driving the solder to ascend to an electrode of the chip from the bonding pad in a lower layer by means of a capillary force, thereby realizing an electrical connection between the chip and the printed circuit board.

Abstract: Disclosed are a lithium negative electrode with a protective layer (1), a preparation method and an application thereof. The protective layer (1) of the lithium negative electrode is located on a surface of the electrode, and the protective layer (1) is a lithiated perfluorosulfonic acid membrane doped with nano molybdenum disulfide (3). The preparation method for the lithium negative electrode with the protective layer (1) comprises the following steps of: I. lithiation of a perfluorosulfonic acid; II. loading of the molybdenum disulfide (3); and III. coating and curing of the protective layer (1). The protective layer (1) of the lithium metal negative electrode of a lithium battery is capable of effectively inhibiting lithium dendrites, and weakening a shuttle effect, thereby improving a charge and discharge capacity, a rate capability and a cycle life of a lithium-sulfur battery.

Abstract: An inorganic ultraviolet LED device, includes a bracket, a curved lens, a press ring, a wire and an ultraviolet chip. A “T”-shaped recess is formed on the upper end of the bracket. The ultraviolet chip is fixed within the recess and connected to a welding layer at the lower end of the bracket through the wire. The curved lens is placed on a step of the recess. An inclined surface is formed on a contact surface of the step contacting with the curved lens. One end of the press ring is connected to the bracket, and the other end thereof presses against the curved lens. Deformation of the press ring is implemented under a pressure action of a pressure head, thereby implementing high-strength bonding of the device. Self-positioning is achieved through a curved surface of the lens and the contact with the inclined surface of the bracket.

Abstract: A method for sealing a high-temperature heat pipe includes: (1) necking and reducing two ends of the heat pipe separately, so as to obtain a necked end and a reduced end; (2) sealing the necked end by laser welding or electron beam welding; (3) placing the heat pipe in an inert gas glove box, and pouring a working medium without impurities into the heat pipe; (4) heating the heat pipe, connecting the reduced end to a vacuum pump, pumping gas inside the heat pipe by the vacuum pump to vacuumize the heat pipe, such that pressure in an inner cavity of the heat pipe reaches a target pressure, and flattening the reduced end; and (5) sealing an opening of the flattened reduced end by electron beam welding or laser welding, so as to obtain the high-temperature heat pipe.

Abstract: A method for sealing a high-temperature heat pipe includes: (1) necking and reducing two ends of the heat pipe separately, so as to obtain a necked end and a reduced end; (2) sealing the necked end by laser welding or electron beam welding; (3) placing the heat pipe in an inert gas glove box, and pouring a working medium without impurities into the heat pipe; (4) heating the heat pipe, connecting the reduced end to a vacuum pump, pumping gas inside the heat pipe by the vacuum pump to vacuumize the heat pipe, such that pressure in an inner cavity of the heat pipe reaches a target pressure, and flattening the reduced end; and (5) sealing an opening of the flattened reduced end by electron beam welding or laser welding, so as to obtain the high-temperature heat pipe.