Abstract: A charging stand (100) for a vacuum cleaner (200) includes: a body (1), a charger (7) and a wire-winding frame (6). The charger (7) is connected with the body (1) via a power cord (71) and provided with a pin (72); the wire-winding frame (6) is disposed to the body (1) and defines an inserting slot (611), in which the pin (72) is configured to be fitted with the inserting slot (611), and the power cord (71) is configured to be wound around the wire-winding frame (6).

Abstract: The present disclosure relates to a hand-held vacuum cleaner (100), comprising a housing (1), a dust cup (2) and an electrical motor (3). The housing (1) is provided with an air inlet (111), an air outlet (311) and an air blowing vent (121), and the air blowing vent (121) is disposed adjacent to the air inlet (111). The dust cup (2) is disposed to the housing (1), and the dust cup (2) is connected to the air inlet (111). The electrical motor (3) is provided with an electrical motor chamber (31), airflow from the air inlet (111) switchably flows out through at least one of the air outlet (311) and the air blowing vent (121) by means of a switching mechanism (4) after flowing through the dust cup (2) and the electrical motor (3).

Abstract: A dust cup, a dust cup assemble and a handheld cleaner are provided and the dust cup for the cleaner having the negative pressure device comprises a base and a cup casing, wherein the cup casing has a non-closed annular cross section with an opening so as to define a dust collecting chamber having a non-closed annular cross section in the cup casing, the cup casing is disposed at a top of the base, a mounting space located outside the dust collecting chamber is defined between an inner-ring wall face of the cup casing and a top wall of the base, a top of the mounting space is directly opened, and a side of the mounting space is opened by an opening, and the negative pressure device is mounted to the mounting space via an opened portion of the mounting space.

Abstract: An extremely low cost solar concentrator made of membranes or films is inflated into a Compound Parabolic Concentrator (CPC) a non-image concentrator. The portion of the inflatable concentrator, which is shaped into a CPC concentrator, is formed with reflective membranes or films, and the portions of the inflatable concentrator on the top of CPC and on the bottom of the concentrator are made of clear membranes or films. The incident light including parallel rays of light and diffuse light, as long as falling into the half acceptance angle of the CPC, will be concentrated to the bottom exit aperture of the CPC. Therefore, this type concentrator reduces the requirement to the accuracy of tracking for concentration. In addition, this type of concentrator demonstrates more tolerance to shape distortion for concentration than imaging system.

Abstract: A hand-held vacuum cleaner (100) is provides, including a housing (1) and a floor brush (200), the housing (1) is provided with an air inlet (111) and an air blowing vent (121), the air blowing vent (121) is disposed adjacent to the air inlet (111); the floor brush (200) is provided with a floor brush inlet (201), a floor brush outlet (203) and a floor brush opening (202), the floor brush inlet (201) is in communication with the air blowing vent (121), the floor brush outlet (203) is in communication with the air inlet (111), the floor brush opening (202) is located at a side of the floor brush (200) away from the housing (1), and an airflow blowing from the air blowing vent (121) first flows to the floor brush opening (202) through the floor brush inlet (201), and then flows to the air inlet (111) through the floor brush outlet (203).

Abstract: A dust cup assembly and a handheld cleaner having the same are provided. The dust cup assembly includes: a cup casing having an opening; a device housing disposed in the cup casing and defining a dust removal chamber together with the cup casing, wherein a part of the device housing has an air exhaust port and the air exhaust port is disposed at the opening and exposed from the opening; and a negative pressure device located within the device housing, and configured to allow dusty air to enter the dust removal chamber for dust and air separation, and airstream separated from the dust removal chamber to enter the device housing and to be exhausted through the air exhaust port.

Abstract: A dust cup assembly (100) and a handheld cleaner (1000) having the same are provided. The dust cup assembly (100) includes: a cup casing (1); a device housing (2) configured as a tube shape and disposed in the cup casing (1), wherein an outer end face of the device housing (2) at an axial side thereof abuts against or extends beyond a partial inner surface of the cup casing (1), and a dust removal chamber (A1) is defined between an inner surface of the cup casing (1) and an outer peripheral surface of the device housing (2) and surrounds the device housing (2) along a circumferential direction of the device housing (2); and a negative pressure device (3) located within the device housing (2) and enabling dusty air to enter the dust removal chamber (A1) for dust and air separation.

Abstract: A dust cup assembly (100) and a handheld cleaner (1000) having the same are provided. The dust cup assembly (100) includes: a cup casing (1); a device housing (2) configured as a tube shape, disposed in the cup casing (1), and defining a dust removal chamber (A1) together with the cup casing (1); a first cyclone separating member (41) disposed in the dust removal chamber (A1) and surrounding the device housing (2) along a circumferential direction of the device housing (2); and a negative pressure device (3) disposed within the device housing (2), such that dusty air enters the dust removal chamber (A1) for dust and air separation through the first cyclone separating member (41), wherein in an axial direction of the device housing (2), the negative pressure device (3) is at least partially located at a side of the first cyclone separating member (41).

Abstract: A handheld cleaner is provided. The handheld cleaner includes: a dust cup assembly comprising: a cup casing; a device housing configured to have a tube shape and disposed in the cup casing, wherein an outer end face of the device housing at an axial side thereof abuts against or extends out of a partial inner surface of the cup casing, and a dust removal chamber is defined between an inner surface of the cup casing and an outer peripheral surface of the device housing and surrounds the device housing along a circumferential direction of the device housing; and a negative pressure device located within the device housing and configured to enable dusty air to enter the dust removal chamber for dust and air separation; a holding assembly mounted to the dust cup assembly and configured for handholding.

Abstract: A hand-held vacuum cleaner (100) is provided, including a dust cup (2), the dust cup includes a first cyclone, a cyclone assembly, and a filtration member. The cyclone assembly includes a plurality of second cyclones (22), a guiding channel (23) is defined between two of the plurality of the second cyclones (22), the guiding channel (23) is in communication with the first air vent and an airflow is guided to an outer circumference of the cyclone assembly by the guiding channel (23) along a tangent line to a circumferential wall of the second cyclone (22) adjacent to the guiding channel (23), each second cyclone (22) has an air inducing notch (222), each second cyclone (22) is provided with an air guiding pipe (221), the filtration member is disposed along the outer circumference of the cyclone assembly, and the airflow in the outer circumference of the cyclone assembly tangentially enters the second cyclone (22) through the filtration member and the air inducing notch (222).

Abstract: A vacuum cleaner includes a hand-held device and the hand-held device has a housing defining an air inlet and an air blowing port at a front end thereof, the air blowing port being disposed adjacent to the air inlet; a dust cup disposed in the housing and connected to the air inlet; and an electric motor defining a motor chamber in communication with the dust cup, in which an airflow entering through the air inlet flows out of the air blowing port after flowing through the dust cup and the electric motor.

Abstract: A charging stand (100) for a vacuum cleaner (200) includes: a body (1); and a blade (4) vertically disposed on the body (1), in which the blade (4) extends curvedly along a length direction of the blade (4) and is configured to cut off hairs wound around a brushroll (201) of the vacuum cleaner (200).

Abstract: A charging stand (100) for a vacuum cleaner (200) includes: a body (1); and a pedal (2) disposed on the body (1) and pivotable between a first position and a second position, wherein when the pedal (2) is in the first position, the vacuum cleaner (200) is suitable to be placed on the pedal (2) to be charged.

Abstract: A charging stand (100) for a vacuum cleaner (200) includes a body (1), a pedal (2) and a safety protection device (3). The pedal (2) is disposed to the body (1) and is pivotable between a first position and a second position. The safety protection device (3) is disposed to the body (1), normally cooperate with the pedal (2), and separate from cooperation with the pedal (2) to make the pedal (2) move from the first position to the second position when moved.

Abstract: A cleaner is provided. The cleaner comprising a hand-held device, in which the hand-held device includes: a housing defining an air inlet, an air outlet and an air blowing port therein, the air blowing port being disposed adjacent to the air inlet; a dust cup disposed in the housing and connected with the air inlet; and an electric motor defining a motor chamber, wherein an airflow entering through the air inlet switchably flows out of one of the air outlet and the air blowing port by a switching mechanism after flowing through the dust cup and the electric motor.

Abstract: A stationary concentrator able to concentrator sunlight with high concentration ratio is consists of a Compound Parabolic Concentrator (CPC) and a prism array. A chamber with its thin transparent wall shaped into CPC and prism array is used to form a bulb-like close structure solar concentrator. Wherein, the non-image CPC with small acceptance half-angle is used to concentrate both beam light and diffuse light with high concentration ratio, and the prism array is used to refract the incident light to enlarge the acceptance angle of CPC, and therefore to realize stationary concentration. The bulb-like close structure concentrators are stacked together to realize arbitrary high concentration ratio of solar concentrator. The present concentrator structure enables the connection of truncated CPC to realize high concentration ratio and save the reflector areas. The stationary concentrator is able to concentrate both of beam light and diffuse light.

Abstract: The present invention relates to a herbicidal composition, especially used as a rape field herbicide, prepared by mixing pyrimidinyl benzylamine herbicide (Pyribambenz-propyl or Pyribambenz-isopropyl) with at least one rape field herbicide selected from a group consisting of: acetyl-CoA carboxylase (ACCase) inhibitors including quizalofop-ethyl, fluazifop-p-butyl, haloxyfop, fenoxaprop, and sethoxydim; chloro-amido herbicides including acetochlor, alachlor, napropamide, ehaprochlor, and metolachlor; ethametsulfuron; and benazolin. The composition of the present invention is of synergistic effect, reduced dosage, broadened spectrum of weed control, delayed resistance and increased safety toward rape.

Abstract: This invention relates to new 2-pyrimidinyloxy-N-aryl-benzylamine derivatives, their preparation processes and uses as chemical herbicides in agriculture. The compound has the following structure: wherein, D or E is hydrogen, halogen, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloalkyl or C1-C4 haloalkoxy; R1 is hydrogen, halogen, C1-C4 alkyl, C1-C4 alkoxy; R2 is hydrogen, halogen, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 carbamyl, C1-C4 alkoxycarbonyl, C1-C4 haloalkyl, cyano, nitro, carboxy or its alkali metal, alkali earth metal and organoammonium salts, C1-C4 alkylamido, C1-C4 haloalkylamido, heterocyclic amido, benzamido or substituted benzamido, benzo or substituted benzo compounds; R3 is hydrogen, C1-C4 alkanoyl, C1-C4 haloalkanoyl, benzoyl or C1-C4 alkoxyacetyl; X is CH or N; n=1-3.

Abstract: This invention relates to new 2-pyrimidinyloxy-N-aryl-benzylamine derivatives, their preparation processes and uses as chemical herbicides in agriculture.