32results about How to "Convenient replacement" patented technology

A roman curtain includes a curtain unit and a winding unit. The curtain unit has a covering portion, a top edge portion of which is adapted to be mounted to or in the vicinity of an upper edge of the window and which extends downwardly, an upper tube that is disposed on a rear side of the covering portion, a lower tube that is disposed on the rear side of the covering portion below and spaced apart vertically from the upper tube, and two rods that extend into the upper and lower tubes respectively. The winding unit has a winding rod that is adapted to be mounted rotatably to or in the vicinity of the upper edge of the window, and a winding piece, a top end portion of which is connected to the winding rod.

A window blind assembly includes a roller blind unit, a curtain member unit, and a clamping unit. The roller blind unit includes a roller rod that extends horizontally and that is rotatably mounted at or in proximity to an upper edge portion of the window, and a roller blind piece a top edge of which is connected to the roller rod and which is able to be wound around and extended from the roller rod. The curtain member unit includes a curtain member having a sheltering portion and a plurality of partitioning portions. The clamping unit includes a plurality of connecting members associated respectively with the partitioning portions. Each of the connecting members has a confining portion, and two securing portions connected to opposite ends of the confining portion and that connect the confining portion to a respective one of the partitioning portions.

The invention relates to a general performance simulation method and a framework of an air surveillance radar. General real-time simulation of detection performance of the air surveillance radar is achieved due to the utilization of a structure of a plurality of serial simulation module channels and parallel computation processing calculation channels. Processing modules related to the radar are serially connected through the serial simulation module channels according to treating processes of radar real installation signals to form into a simulation process of processing of at least a radar signal. Parallel simulation calculations of treating processes of a target signal, an interference signal and a clutter signal are respectively performed through a parallel calculation processing structure based on the serial simulation module channels and then various signals are performed composition and point trace cohesion to form and output a radar simulation result. The serial simulation module channels are reconfigurable; module composed structures and parameters can be changed; and an existing module or a new construct module can be utilized to achieve general performance simulation of the air surveillance radar.

A fluid reservoir for a paint spray gun comprises a container having an opening and a cover body that sleeves on the opening; the cover body is provided with a connecting port that connects with the paint spray gun; a side of the container has scale and the container is provided with a ventilation device; a filtering device is installed in the fluid reservoir; the cover body is provided with a groove corresponding to the periphery of the container opening; the periphery of container opening is inserted into the groove; a buckle mechanism connects the cover body with the container. Compared with the structure of screw thread connection, such connection manner improves the tightness between the cover body and the container, and makes the cover body and the container easier to be assembled and disassembled.

Provided is a fishing reel equipped with a replaceable hood top. The fishing reel includes: a frame having a mount; two side covers coupled to both sides of the frame; a spool disposed inside the mount of the frame and coupled to the side covers through a shaft; a reel foot coupled to a bottom of the frame to be mounted on a fishing rod; a hood coupled to a top of the frame; a handle coupled to a side of the frame through a shaft to rotate the spool; and a tension nut disposed on a side of the frame to adjust a casting distance by controlling a rotational speed of a spool shaft. The hood has coupling portions, and a replaceable hood top is coupled to the coupling portions.

The invention discloses a magnesium alloy fluoride-free hydrazine chemical nickel plating solution and a nickel plating process thereof. The nickel plating solution comprises an alkaline fluoride-free hydrazine chemical nickel plating solution and an acidic fluoride-free hydrazine chemical nickel plating solution; the pH value of the alkaline fluoride-free hydrazine chemical nickel plating solution is greater than or equal to 13, and the alkaline fluoride-free hydrazine chemical nickel plating solution consists of nickel chloride, hydrazine, a complexing agent, sodium hydroxide or potassium hydroxide, boric acid or thiourea; the pH value of the acid fluoride-free hydrazine chemical nickel plating solution is 4-6, and the acidic fluoride-free hydrazine chemical nickel plating solution consists of a nickel salt, sodium hypophosphite, citric acid and thiourea. The nickel plating process comprises the following steps: polishing, removing oil and grease, carrying out alkaline washing, pickling, activating, carrying out alkaline fluoride-free hydrazine chemical nickel plating, carrying out acidic fluoride-free hydrazine chemical nickel plating, and passivating. The plating solution is free of fluorine in component, safe in composition, and does not pollute the environment; the service life of the alkaline fluoride-free hydrazine chemical nickel plating solution is long; an outer layer of a composite coating obtained by nickel plating is an amorphous-state nickel phosphorus alloy; and the compact coating is high in compactness, relatively good in corrosion resistance and high in binding force, and has a good industrial application prospect.

Disclosed is a cheque processing device, including: a base, a frame located at the top face of the base and forming a U-shaped paper passage, and multiple sets of conveying roller assemblies (9) and multiple processing mechanisms provided along the U-shaped paper passage, wherein one end of the U-shaped paper passage is an inlet and the other end is an outlet. The frame comprises a fixed frame body, and a first movable frame body and a second movable frame body which form the U-shaped paper passage together with the fixed frame body, wherein the first movable frame body and the second movable frame body can both pivot on the base to open and close with respect to the fixed frame body.

The invention provides a biological filler for nitrogen removal by denitrification as well as a preparation method and application thereof, belonging to the technical field of sewage treatment. According to the invention, beta-cyclodextrin with a certain space net structure is adopted as a main body; firstly, hydroxyl functional groups on the periphery of the filler can be activated by soaking the beta-cyclodextrin in a sodium hydroxide ethanol solution, and replacement with halogen atoms is facilitated; the sodium hydrosulfide ethanol solution can further replace a halogen element with a sulfydryl functional group, so a sulfur element is loaded in the filler; the sulfydryl functional group can be further converted into a disulfide bond which is more stable and has a modified space net-shaped structure through dehydration condensation; and hot melting granulation molding is conducted to obtain the biological filler for nitrogen removal by denitrification. The prepared biological filler for nitrogen removal by denitrification can achieve sulfur autrophism-heterotrophism coupled denitrification effect for nitrogen removal, treatment efficiency is guaranteed and the problems that biofilm culturing time is long, treatment efficiency has bottleneck, secondary pollution is caused to effluenti and the like in existing autotrophic and heterotrophic denitrification treatment are solved.

Disclosed is a reduced-pressure type backflow preventer comprising a valve body (1), two check valves (2) of the same structure and a drain valve:(3) wherein a cavity is formed body, and a valve wall of the valve body is provided With a water inlet, a water outlet, and a drain opening; the two check valves are both fixedly mounted inside the valve body supporting member (4), and are positioned at the water inlet and the water outlet, respectively; the drain valve is mounted outside the valve body, and is positioned at the drain opening; the check valve comprises a valve seat (201), a valve clack (202), a rocking bar (203), and a twin torsional spring (204); one side of the valve clack is hinged to an upper end of the valve seat, and the other side is provided with a roller (205); the rocking bar is connected to a lower end of the valve seat via a pin (206); the roller abuts against the rocking bar and slides on the rocking bar; the twin torsional spring is sheathed over the pin; and a spring force of the twin torsional spring acts on the rocking bar to maintain the valve clack in a normally closed state, and an external force is used to cause the roller on the valve clack to roll on the rocking bar so as to open the valve clack. The preventer provides a better flow preventing effect by virtue of the structure of the twin torsional spring and the rocking bar of the check valve.

A detachable floating shaver includes a head, a casing having a third through hole, a main housing, a first floating member, and a second floating member. Through the connection and positioning relationship between the two parent and child pivot portions, that is, the first floating member and the second floating member, the head can achieve a cross rotation relative to the main housing. The second floating member has a connecting member; through the detachable connection between the second floating member and the connecting member, the head of the shaver is detachably connected, which is convenient for replacement, cleaning and maintenance and is more practical. The shaver can achieve 360° rotation through two parent and child pivot portions and two elastic sleeves, and the effect of floating contact of the shaver with the user's face is good.

The present invention relates to an infant body temperature and sleep monitoring system including a Bluetooth body temperature thermometer main body, an arm belt and a Bluetooth receiving member; the Bluetooth body temperature thermometer main body is connected to a first side of the arm belt via a first adhesive strap; a second side of the arm belt is disposed with a fastening ring at a first end and a second adhesive strap at a second end; the second end of the arm belt which is disposed with the second adhesive strap passes through the fastening ring and engages with the second adhesive strap so that the arm belt forms a tightness-adjustable annular belt; the Bluetooth body temperature thermometer main body obtains body temperature data and transmits the body temperature data to the Bluetooth receiving member. The present invention is simple in structure, convenient and practical and easy to wear.

A range hood, containing at least a fan having a housing and an impeller, an oil filter, a cover, a fume exhaust cover, a light, and a switch. The housing of the fan is a circular double-chamber or multi-chamber structure with an air inlet and an air outlet, and the impeller of the fan contains at least one group of arc-shaped blades each having a closed side and being enlarged in an axial direction.

An LED light source apparatus includes a lamp housing, a lighting module, and a lens. The lamp housing has a first shell body, a second shell body, and a waterproof pad disposed between the first and second shell bodies. The first shell body and the second shell body are covered to each other. The second shell body has an opening. The waterproof pad is provided with a throughhole corresponding to the opening. A light guide flap is disposed on the perimeter of the opening of the second shell body. The lighting module is disposed inside the lamp housing corresponding to the opening. The lens is installed on a side of the lamp housing corresponding to the lighting module. Therefore, the components or the lighting module with a different power can be conveniently replaced by modules and thus the present invention has the flexibility in replacement and maintenance.

The invention discloses a nucleic acid aptamer for targeting and antagonizing HMGB1 molecules, and belongs to the technical field of biology. The aptamer can be efficiently combined with HMGB1, has the advantages of good affinity, low immunogenicity, small molecular weight, low synthesis cost, easiness in storage, convenience in modification and substitution and the like, and has important application value in the fields of nucleic acid antagonists of HMGB1, detection and the like. Besides, the aptamer can be used for preparing medicines for treating inflammations such as acute pneumonia and the like, and experiments find that the aptamer can effectively reduce significant down-regulation of IL-6 and TNF-alpha in blood of mice with acute inflammations, which indicates that the aptamer ZH-1a can inhibit release of inflammation-related factors in inflammatory diseases.

The invention relates to a public storage cabinet, in particular to a public storage cabinet used for storing letters or expresses and a manufacturing method thereof. The storage cabinet comprises a cabinet body, a centre shaft and a motor connected with the centre shaft, the cabinet body is rectangular or rounded, and a storage box is arranged inside the cabinet body; panels are respectively arranged on the upper, left, right and back faces of the cabinet body, a base is arranged at the lower portion of the cabinet body, and a cabinet door and a control panel are arranged on the front portionof the cabinet body; a control center module is arranged inside the cabinet body, the centre shaft vertically penetrates through the storage box, the storage box is a vertical cylinder and is dividedinto multiple layers by partitions, and the multiple layers are fixed to the centre shaft; each layer of the storage box takes the centre shaft as the center and is partitioned into a plurality of fan-shaped storage cases, the motor is started by the control center to rotate a corresponding storage case to face a corresponding cabinet door, and the control center orders the cabinet door to be opened, thereby achieving storing and taking expresses.

A floor cleaner brush arrangement includes a housing having mounted thereto a plurality of adjacent rotating brush assemblies. The rotating brush assemblies each include bristles extending there-from downwardly to the floor and outwardly into an overlapping and intermeshing relationship with the bristles of the brush assembly or assemblies adjacent thereto. The bristles of adjacent brush assemblies cooperate when rotating to contact the floor in overlapping fashion to eliminate cleaning blind spots.

The invention discloses a multi-nucleic acid aptamer for detecting pathogenic microorganisms and a combination of the multi-nucleic acid aptamer, and belongs to the technical field of biological detection. The nucleic acid aptamer and the combination thereof disclosed by the invention can be specifically combined with pathogenic microorganisms, so that the nucleic acid aptamer and the combination thereof can be used for identifying and identifying the pathogenic microorganisms. The aptamer is screened by using an index enrichment ligand systematic evolution technology, and when the screened aptamer is used for detecting pathogenic microorganisms, the specificity is high, and the sensitivity is high. In addition, the aptamer has the characteristics of small molecular weight, better stability, easiness in modification, no immunogenicity, short preparation period and the like, and is more suitable for detecting pathogenic microorganisms compared with an antibody.