35results about How to "Reduced sealing structure" patented technology

The invention relates to a side-pole multi-voltage nickel-metal hybrid battery module, which belongs to the technical field of batteries. The side-pole multi-voltage nickel-metal hybrid battery module comprises cells (5) which are fixed in a battery module shell (1), wherein a plurality of partition plates (2) are vertically arranged in the inner cavity of the battery module shell (1), the inner cavity of the battery module shell (1) is divided into a plurality of single battery cavities (3) which are sealed to one another, one cell (5) is encapsulated in each single battery cavity (3), each partition plate (2) is fixedly provided with a conductive pole (4), the cells (5) are connected with one another in series through the conductive poles (4), the cells (5) on two ends of the battery module shell (1) respectively penetrate through a positive pole (6) and a negative pole (7) of the battery module shell (1). The plurality of cells are connected with one another in series through the conductive poles, so that the cells are directly connected together inside the battery module shell, and the weight of the batter module is reduced. The side-pole multi-voltage nickel-metal hybrid battery module has the advantages of high capacity ratio, low cost, safety in use, long service life and the like.

The present invention provides a gas generator capable of easily and unfailingly closing a gas discharging port formed in a housing. The invention provides a gas generator for an air bag in which an amount of accommodated gas generating agent can be varied and the gas generating agent can be ignited and burnt unfailingly even by the ignition means having normal output. The invention provides a gas generator which has sealing structures as little as possible and in addition to a simple structure and can be manufactured easily, and in that a activation performance and activation timing can be adjusted at a multiple stage. The invention provides a gas generator for an air bag comprising, in a housing provided at its peripheral wall with a plurality of gas discharging ports, an ignition means to be actuated upon the impact, and a gas generating means to be ignited and burnt by the ignition means, wherein the gas discharging ports are arranged in the axial direction of the housing to form a gas discharging port line, two to six gas discharging port lines are arranged close to each other in the circumferential direction of the housing to form a gas discharging port group, the gas discharging port groups are arranged in the circumferential direction of the housing at predetermined intervals. The invention provides a gas generator for an air bag comprising, in a cylindrical housing which is longer in the axial direction than in the radial direction, an ignition means to be actuated upon the impact, and a gas generating means to be ignited and burnt by the ignition means, wherein a combustion chamber for accommodating the gas generating means and a filter means accommodating chamber for accommodating a filter means are formed in the housing adjacent to each other in the axial direction so that these cambers communicate with each other, the combustion chamber accommodating the gas generating means is separated from the filter means accommodating chamber by a partitioning member having a through-hole. The invention provides a gas generator for an air bag comprising, in a cylindrical housing which is longer in the axial direction than in the radial direction, two ignition means to be actuated upon the impact, and two combustion chambers accommodating gas generating means to be ignited and burnt by the ignition means, wherein the combustion chambers are provided on the opposite ends in the housing, a filter means accommodating chamber for accommodating a filter means is provided between the combustion chambers, either of the combustion chambers communicates with the filter means accommodating chamber.

The invention provides a small-size underwater magnetic coupling propeller device which comprises a motor assembly, a magnetic coupling coupler assembly and a propeller assembly. The magnetic coupling coupler assembly comprises a spacer bush, a supporting ring, an inner rotor, an outer rotor, magnets, a rolling bearing and an elastic retaining ring, the supporting ring is installed in the spacer bush, the inner rotor is installed on the spacer bush and the supporting ring, a groove is arranged on the outer side of the inner rotor, a first magnet is installed in the groove, the outer rotor is installed on the spacer bush and located outside the spacer bush, the outer rotor is provided with a groove, a second magnet is installed in the groove, the left side of an inner ring of the rolling bearing leans against the spacer bush, the right side of the inner ring of the roller bearing leans against the elastic retaining ring, the left side of an outer ring of the rolling bearing leans against the outer rotor, the right side of the outer ring of the rolling bearing leans against the propeller assembly, the outer rotor is connected with the propeller assembly, and an output end of the motor assembly extends into the inner rotor and drives the inner rotor to rotate through a key. The small-size underwater magnetic coupling propeller device is small in size, light, good in tightness, easy to process and applicable to micro underwater robots.

The invention discloses a composite rotor vacuum pump. The composite rotor vacuum pump comprises a pump chamber and a rotor. The rotor comprises two rotor shafts synchronously rotating along opposite directions, two ends of the rotor shaft are supported through bearings at two ends in the pump chamber, the pump chamber is provided with an air inlet and an air outlet, the vacuum pump also comprises a motor rotor and a motor stator, the motor rotor is fixed to the rotor shaft, and a position in the pump chamber corresponding to the motor rotor is provided with the common motor stator. The motor stator and motor rotor drive the rotor shafts to rotate so that a structure is greatly simplified, a seal structure is simplified and equipment reliability is improved. The composite rotor vacuum pump solves the technical problem that the traditional vacuum pump has a complex structure, large gear driving noise and high oil consumption.

A process for making metal fibre felt with two protecting metal net layers, metal fibre felt between two protecting net layers and elastic seal ribbon adhered to periphery of felt. A technology for preparing it includes such steps as coating the rubber-type adhesive to the edges of metal fibre felt and protecting nets, arranging them in a mould, and hot pressing. Its advantages are high size and shape precision, high pressure tolerance, and simplified sealing structure.

The invention relates to an intelligent source baffle plate system and a method thereof for preparing a hard coating. The system comprises a vacuum chamber, a circular gear ring, an intelligent source baffle plate, a gear reducer motor and a magnetofluid sealing transmission shaft. The method comprises the steps of (1) carrying out coating pretreatment; (2) carrying out vacuum pumping; (3) starting argon ion bombardment cleaning; (4) continuously carrying out high vacuum pumping to (4.0 to 9.0) * 10<-3> Pa, and carrying out target source predischarge cleaning; (5) continuously carrying out high vacuum pumping till the vacuum degree reaches 3.0 * 10<-3> Pa or above; (6) detecting the leakage rate of the vacuum chamber; (7) carrying out main arc metal ion bombardment and preparing a metal transition layer; (8) preparing a nitride coating through plating; and (9) after coating, inflating the vacuum chamber which is cooled to 150 to 250 DEG C, and after inflation, opening a door of the vacuum chamber to take out a workpiece. According to the system and the method, the content of residual gases in the vacuum chamber can be effectively decreased, the bonding strength of the hard coating and the surface of a base material and the performance of the hard coating are improved, mutual pollution between different cathode targets can be effectively prevented, and the quality and performance of a multi-layer or composite coating are improved.

The invention relates to the technical field of refrigerators, in particular to a main control board installing structure and a refrigerator. The main control board installing structure comprises a main control board, a top cover and an installing box. An installing groove is formed in the installing box. An installing assembly is arranged on the bottom face of the installing groove and used for installing the main control board. The installing box is connected with the upper surface of the top cover, and the installing groove is covered with the top cover. Harness holes are formed in the top cover and communicate with the installing groove so that harnesses can penetrate through the harness holes and enter the installing groove to be connected with the main control board. According to the main control board installing structure and the refrigerator, the installing box is directly connected to and arranged on the top cover of the refrigerator, the main control board is fixed by the installing assembly in the installing groove of the installing box, the harnesses penetrate into the installing groove of the installing box through the harness holes in the top cover so as to be connected with the main control board, the arrangement of an original embedded box is omitted, no concave or notch needs to be formed in the top cover in advance, a sealing structure between the embedded box and the top cover is omitted, the manufacturing procedures and the installing procedures are simplified, and the cost of the main control board installing structure is reduced.

The invention relates to the technical field of water heating, in particular to a steam heating water tank. Water in the water tank can be conveniently and evenly heated, equipment arrangement is simple, and the cost is low. The steam heating water tank comprises a cylindrical tank body. A water inlet, a water outlet and an overflow port are formed in the tank body. A tank cover is arranged on thetank body. The steam heating water tank is characterized in that a spiral steam heating pipe is arranged in the tank body; the lower end of the steam heating pipe penetrates through the tank body tobe connected with an air inlet valve; the upper end of the steam heating pipe penetrates through the tank body to be connected with an air return pipe; a water inlet valve is mounted on the water inlet; the water outlet is connected with one end of a water outlet pump through a water outlet valve; the other end of the water outlet pump is connected with water conveying pipeline; a liquid level sensor is mounted in the tank body; and an exhaust cap is mounted on the tank cover.

The invention discloses a powder dissolving mixer and mixing cabin, a powder dissolving mixing device and a control method of the powder dissolving mixing device. The powder dissolving mixer includesa main shaft and stirring blades, and the end part of the main shaft is provided with a section of stirring spiral; the upper part of a cabin body of the powder dissolving mixing cabin is provided with a stirring motor and the powder dissolving mixer, the lower side of the inner part of the cabin body is provided with a spiral seal accommodation hole which has a bottom with a liquid outlet, and the stirring spiral is arranged in the spiral seal accommodation hole in an inserting mode; a housing of the powder dissolving mixing device is provided with a control unit, a water supplying assembly,a powder supplying assembly and the powder dissolving mixing cabin; and the control method includes the following steps of powder dissolving mixing, cleaning and air drying operation. According to thepowder dissolving mixer and mixing cabin, the powder dissolving mixing device and the control method of the powder dissolving mixing device, a sealing structure at the bottom of the mixing cabin is omitted, the product structure is simplified, the production cost is decreased, the problem that the bottom of the sealing structure is prone to breeding bacteria is solved, by a spiral structure of the stirring spiral combined with the stirring blades, the problem of single action on milk powder and water is solved, evenly powder dissolving is ensured, and powder clumping is prevented.

The invention discloses a self-lubricating contact type composite sealing device for a high-temperature part of a gas turbine engine. The technical problem that the sealing structure effect of the high-temperature part of the gas turbine engine in existing aerospace is poor is solved. The self-lubricating contact type composite sealing device comprises a sealing inner ring arranged at the high-temperature part of the gas turbine engine. A pressing assembly is arranged on the periphery of the sealing inner ring. A fingertip sealing ring and a graphite lubricating piece are arranged in the pressing assembly. The inner wall of the fingertip sealing ring is in sliding fit with the outer wall of the sealing inner ring. An elastic supporting piece for pressing the graphite lubricating piece to the outer wall of the sealing inner ring is arranged in the pressing assembly. The self-lubricating contact type composite sealing device is simple in structure, low in cost, long in service life, andhigh in sealing effectiveness and sealing efficiency, the major problem of contact type sealing self-lubricating is solved, and the self-lubricating contact type composite sealing device has importantapplication value in the sealing direction of the hot end part of an aerospace gas turbine engine.

The invention relates to a switch layout structure of convertible current voltage transformer, the structure comprises a self body oil tank provided for a receiver self body, and three switch oil tanks provided respectively for receiving three single phase switches, the three single phase switches provide outside convex openings on one tank wall side, the three switch oil tank outside convex openings are detachable and joined with self body oil tank outside side wall, the receiver self body voltage regulator and the wire guide together with the single phase switch voltage regulator and the wire guide adopts detachable link structure and one-to-one respective links inside and outside convex openings. The structure effectively resolves the issue that the weight and width of convertible current voltage transformer are restricted by conditions of rail route transport, the structure possesses reliable insulation ability, places simple structure and configuration, costs comparatively low and possesses compact overall structure, reinforces oil tank strength, saves oil consumption for voltage transformer.

The invention discloses a full-hydraulic floating sealing-free bidirectional shaft sleeve. The shaft sleeve comprises an aluminum sleeve, a lining sleeve and a shaft sleeve body, wherein two through holes which penetrate through the shaft sleeve along the thickness direction of the shaft sleeve body are formed in the shaft sleeve body; an oil outlet is formed between the two through holes on the shaft sleeve body; a hollow cavity is formed in the shaft sleeve body; a valve seat is arranged at the left end of the hollow cavity; a valve sleeve is arranged at the right end of the hollow cavity; a valve cavity is formed in the valve sleeve; a first oil duct is arranged on the valve seat; a second oil duct and a third oil duct are arranged on the shaft sleeve body; the third oil duct is communicated with the oil outlet; the first oil duct, the second oil duct and the third oil duct are communicated with the valve cavity in the valve sleeve; and a steel ball is arranged in the valve cavity. The full-hydraulic floating sealing-free bidirectional shaft sleeve has the advantages that the shaft sleeve can be effectively adhered to the end surfaces of gears, so that a sealing structure is eliminated, the volume efficiency of a hydraulic pump is improved, the start torque is reduced, the free conversion between a high-pressure zone and a low-pressure zone is realized, and the like.

The invention relates to the field of household appliances and discloses a microwave oven. The microwave oven comprises a top plate (1) and a steam draught fan (2) arranged on the top plate (1). The steam draught fan (2) communicates with a first intake channel (9). The top plate (1) is provided with an installation portion which is provided with a first opening (31) and located on the front side of the first intake channel (9). A humidity sensor (4) is arranged in the installation portion. An inclined plate (6) is connected between side plates (3) and the top plate (1). The inclined plate (6) forms a second opening (61), the second opening (61) allows a steam circulation path to be formed between the first opening (31) and the humidity sensor (4). By the adoption of the technical scheme, the inclined plate with the opening is arranged in the installation portion, so that steam in the installation portion can be influenced by suction airflow of the draught fan less, a top seal structure of the installation portion can be omitted, and the material cost is less.

The invention discloses a supporting device of a screw compressor. The supporting device comprises an air cylinder, a male rotor and a female rotor; an end cover is connected with one end of the air cylinder in a matched manner; two grooves are formed in the end cover; one end of the male rotor is sleeved with a first bearing bush; one end of the female rotor is sleeved with a second bearing bush;the first bearing bush and the second bearing bush are connected with the corresponding grooves in a matched manner; two through holes are formed in one end, far away from the end cover, of the air cylinder; the male rotor and the female rotor are connected with the corresponding through holes in a matched manner through bearings; the other end of the male rotor is sleeved with a first gear; theother end of the female rotor is sleeved with a second gear; the first gear and the second gear are connected in a meshing manner; and one end, far away from the end cover, of the air cylinder is connected with a bearing cover in a matched manner. The supporting device has the advantages as follows: the supporting device is simple in structure, the space occupied by the compressor is reduced, theradial bearing capacity of the supporting device is increased, two seal structures are omitted, and the supporting device has the good market prospect.

The invention discloses an asynchronous transmission multistage centrifugal pump, belongs to the technical field of centrifugal pumps, and particularly relates to asynchronous transmission multistage centrifugal pumps. The asynchronous transmission multistage centrifugal pump comprises a primary pump body. A double-sided impeller is arranged in the primary pump body via a primary shaft. The asynchronous transmission multistage centrifugal pump is characterized in that a water outlet end of the primary pump body is connected with a water inlet end of a multistage pump body; a multistage impeller is arranged in the multistage pump body via a multistage shaft; the multistage shaft is connected with the primary shaft by a gearbox. The asynchronous transmission multistage centrifugal pump has the advantages that the net positive suction head can be greatly reduced without changing the number of stages of the centrifugal pump, and the lift of the horizontal asynchronous transmission multistage centrifugal pump can be guaranteed.

The invention provides an oil-leakage-resistant hydraulic shock absorber. The oil-leakage-resistant hydraulic shock absorber comprises an integrated oil storage tank, a piston rod, pistons, sealing bodies and a flow pipe. The oil-leakage-resistant hydraulic shock absorber is characterized in that the integrated oil storage tank comprises a first oil tank, a second oil tank and a connecting portion; and the middles of the first oil tank and the second oil tank are connected through the piston rod, the pistons are arranged at the two ends, connected into the first oil tank and the second oil tank, of the piston rod, flow holes are formed in the two sides of the upper end of the integrated oil tank, and the flow pipe is connected with the flow holes and arranged outside the integrated oil tank. By means of the special structure of the oil storage tank, sealing structures of oil are reduced, oil sealing of the shock absorber is achieved, and the oil leakage resistance of the equipment is further improved.

To provide a filling apparatus in which when a pipe joint of a filling nozzle and a vehicle side filling port (receptacle) are connected with each other, a lever surely positions outward a swelling portion at an end of a clutch and a condition that the selling portion at the end of the clutch engages an engaging recessed portion of the receptacle is maintained, which allows a condition that the pipe joint of the filling nozzle and the vehicle side filling port (receptacle) are connected with each other to be continued. The filling apparatus (100) including: a storage tank (50); a filling nozzle (10) for filling hydrogen from the storage tank (50) via a fuel filling mechanism and a vehicle side filling port (20) to an in-vehicle hydrogen filling tank (41); a clutch mechanism (12) for maintaining a condition that the filling nozzle (10) and the vehicle side filling port (20) are connected with each other; and a lever position moving mechanism (13) for moving the lever (5) radially outward an end portion of the clutch mechanism (2) on the vehicle side filling port (20) side when the filling nozzle (10) and the vehicle side filling port (20) are connected with each other.

The invention discloses an asynchronous transmission multistage centrifugal pump, belongs to the technical field of centrifugal pumps, and particularly relates to asynchronous transmission multistage centrifugal pumps. The asynchronous transmission multistage centrifugal pump comprises a primary pump body. A double-sided impeller is arranged in the primary pump body via a primary shaft. The asynchronous transmission multistage centrifugal pump is characterized in that a water outlet end of the primary pump body is connected with a water inlet end of a multistage pump body; a multistage impeller is arranged in the multistage pump body via a multistage shaft; the multistage shaft is connected with the primary shaft by a gearbox. The asynchronous transmission multistage centrifugal pump has the advantages that the net positive suction head can be greatly reduced without changing the number of stages of the centrifugal pump, and the lift of the horizontal asynchronous transmission multistage centrifugal pump can be guaranteed.

The invention relates to the technical field of machine tool part equipment, in particular to an adjustable clamp holder. The clamp holder comprises a main clamping device and an auxiliary clamping device, wherein the main clamping device is provided with a containing part capable of accommodating the auxiliary clamping device. The main clamping device is in sliding connection with the auxiliary clamping device, the specific sliding connection mode is that a transverse sliding groove is formed in the inner wall of the containing part, and the auxiliary clamping device is fixedly provided withan extending plate, wherein the extending plate is fixedly provided with vertical sliding grooves matched with the transverse sliding groove. The main clamping device is connected with a hydraulic system, and the auxiliary clamping device communicates with the main clamping device through a hydraulic oil pipe. According to the adjustable clamp holder, the auxiliary clamping device can be installedon the main clamping device, and therefore the clamping area and the contact area of the clamping holder can be adjusted, thus making the clamp holder suitable for machining different work pieces.