37results about How to "Easy to use, maintain and repair" patented technology

The invention discloses a trigger switch with a power failure restart protection function, which mainly comprises a base body (1), a shell (2), a trigger (3), a lock knob (4), a magnetic yoke (19), a coil (20), a magnetic core (22) and an armature (23), wherein the base body (1), the shell (2), the trigger (3), the lock knob (4) and related structural elements form a mechanical structure part of the switch, and the magnetic yoke (19), the coil (20), the magnetic core (22), the armature (23) and relates electromagnetic elements form the electromagnetic structural part of the switch. The trigger switch formed by the mechanical structural part and the electromagnetic structural part can realize closed locking after the switch is switched on and the off functions of the switch when power failure occurs suddenly, and if the switch is expected to be switched on again, the trigger is required to be pressed again to realize the power failure restart protection function of the switch. The invention has compact structure and low manufacture cost, is suitable for large and middle sized angular finishing grinders, polishing machines, waxing machines and other electric tools, and accords with the national safety standard.

The invention relates to a friction stitch welding repairing method for the underwater steel structure cracks and the device, wherein, the friction stitch welding method is as follow: a stopper (2) rotating at high speed is inserted in the preboring welded hole (11) and is applied with axial pressure; the contacting interface of the welded hole (11) and the stopper (2) is heated and melted to form a plurality of welding units (3) through crystallization and metallurgical reaction; the welding units (3) are overlapped with each other to form a complete stitch welding seam (4). The repairing device for the underwater steel structure cracks adopts the friction stitch welding method and comprises a plurality of underwater components and a plurality of above-water components, wherein, the underwater components comprise a friction spindle head (5), an underwater operational manipulator (6), an automatic tool magazine (7), a tool changer (8) and an underwater teleoperator (9); the above-water components comprise a hydraulic power system, an electric control system and a data acquisition system. The device adopting the friction stitch welding method has the advantages of excellent welding quality, simple structure, reliability and easy operation, low cost and easy use, maintenance and repair.

The present invention is biophotosynthetic reactor apparatus and process for producing micro algae. Inside one transparent photosynthetic greenhouse, there are at least one closed transparent circulating pipeline unit with at least one layer of sealed circulating pipes made of high energy converging light-converting RE material, and light-converting plates or films of high energy converging light-converting RE material. Inside the sealed circulating pipes, chlorella is cultured. The present invention has full utilization of natural illumination, capacity of avoiding hetero microbe contamination, effective control of temperature and CO2 addition and high chlorella yield and quality.

A multi-functional solid-liquid separator for sewage pretreatment is mainly composed of a slowing box (1), an interception net (2), a sewage holding bucket (3), a frame construction (4), an inlet pipe (5) and a sludge pipe (6), wherein, the slowing box (1) is arranged inside the interception net (2), and the sewage holding bucket (3) is arranged under the slowing box and the sewage holding bucket. The top of the slowing box (1) is not sealed, a part of the box bottom (11) is cut off by a sealing bottom (14) and the sewage holing bucket (3) and the rest part is provided with a flushing orifice (12) which is communicated with the sewage holding bucket (3). The slowing box (1) can cause the income water to form fluid with non-continuity and certain splashing flow speed and fluid with gentle drop, the interaction of which can separate the light hair and comparatively heavy solid from the sewage, which are finally discharged from the sewage holding bucket. The separator has advantages of simple structure, high efficiency, low cost and convenience for maintenance.

The invention discloses a pulse time discrimination device. The pulse time discrimination device comprises a bipolar pulse former and a double-threshold zero-passage time discriminator, which are connected with each other, wherein the bipolar pulse former consists of a pulse resonator and a pulse amplifier, which are connected in sequence; a unipolar pulse signal excites the pulse resonator to generate attenuation oscillation so as to form a bipolar pulse signal; by using a zero-passage time point of the bipolar pulse signal as pulse time information, the pulse amplifier only linearly amplifies an amplitude signal nearby a zero-passage point; the double-threshold zero-passage time discriminator comprises a zero-passage comparator, a pre-discriminator, a monostable circuit and the like, which are connected in sequence. The pulse time discrimination device is simple in structure, low in cost and convenient and reliable to use, and can be applied to pulse time discrimination of measuring instruments such as nuclear physics and high-precision laser pulse distance measuring instruments.

The invention relates to a feeding and dispensing device, mainly comprising shell of storage house, middle shell, bottom flange, rotary brush, filter screen, agitator, floating disk module, rotary metering disk, fixed disk, carrying segment module and power driving part. Motor and reducer of power driving part are connected with driving shaft with each other and on the driving shaft the rotary brush, the agitator and the rotary metering disk are connected. The filter screen is fixed on the middle shell and the floating disk module is set between the agitator and the rotary metering disk. The fixed disk is set under the rotary metering disk and the carrying segment module is set under the bottom flange. The invention realizes the continuous accurate feeding and dispensing of catalyzer in polymerization reaction and it can be used in petrochemical industry, food and medicine industry. The invention is provided with compact structure, easy utilization and maintenance.

The present invention is air preheating system and method for bottom combustor in ethylene cracking furnace. Cold air may be preheated in preheater with low pressure blow-down steam after balance in plant side, circulating chilling water for cracking furnace and condensing effluent from plant side as heating medium. The present invention utilizes the latent energy of available apparatus with few increase in apparatus without need of automatic control system to result in obvious energy saving effect.

The invention relates to a prefabricated bin for a high-voltage SF6 phase angle control switching breaker. A box is divided into a plurality of compartments, namely an incoming line compartment, a PT (potential transformer) compartment, at least one capacitor compartment, at least one inductor compartment, a transformer compartment and a control chamber. The prefabricated bin is simple in structure, small in occupied area, capable of realizing workshop assembly, low in cost, and convenient to use, maintain and overhaul.

A kind of stealing device of a closed hole which is mainly insisted of a secondary tight coupling device (1), an elastic sealing component (2), and a hold-down gear. Make the secondary tight coupling device with a sealing component (11) covering the holes (12) which need to be sealed at the same time connecting with the major structure (13). Put the elastic sealing component (2) into the mountinghole (14) and implant the sealing baffle plates (31) at the up-and-down of mounting hole and one of them is installed at the inner of if and another is installed at the edge of it also there is a hold-down bolt (32) through the center of it. It can implement the sealing affection and get the bearing of self allocation by hold-down bolt (32) and the sealing baffle plate (31) pressure to the elastic sealing component. The invention has high reliability, significant sealing affection, simple structure, low manufacturing cost and it is convenience to use, maintenance and repair.

The invention discloses a welding mechanism with a bidirectional locking mechanism, mainly comprising a trolley locking mechanism (1) and a trolley walking mechanism (2), wherein a motor shaft gear (29) in the trolley walking mechanism (2) is mutually meshed with an intermediate gear (21); an intermediate gear B (22) is meshed with a driving gear (27) which is meshed with a guide rack (32); front driving wheels (26) are respectively arranged on the left side and the right side of a front driving shaft (31) and rear driven wheels (35) are respectively arranged on the left side and the right side of a rear driving shaft (33), thereby forming a main body of the trolley walking mechanism (2); a compression shaft (14), a cone-shaped compression wheel (15), a sliding block (12), a stop block (10) and a locking wheel (11) form the locking mechanism (1); and the compression of the compression wheel (15) on the side of a guide rail (3) can be realized by rotating the compression shaft (14) and the locking wheel (11). The invention has the advantages of simple structure, smallness, flexibility, reliable work, low construction cost and simple and easy maintenance and repairing.

The invention relates to a vertical bubbling oxidation device used for synthesizing naphthalene formic acid, which mainly comprises a cylinder (1), a head cover (2), a bottom cover (3), a liquid distributor (4), a structured packing (5), a reaction liquid (6), a gas distributor (7), a material-inlet (8) and a material-outlet (9); the reaction equipment of which is mainly vertical tubular structure; the top of the vertical tubular structure is provided with the liquid distributor (4), the structure packing (5) and the interior reaction solution(6), and the bottom is provided with the gas distributor (7) composed by ( 4 to 8 ) nozzles (71) evenly distributed from the center of the bottom. The device is provided with a rectifying section (11), a free section (12) and a reaction section (13),and the side of the device is provided with the material-inlet (8) and the material-outlet (9) according to need of the oxidation. The vertical bubbling oxidation device used for synthesizing naphthalene formic acid is simple in structure, convenient in operation, reliable in working, low in cost and simple in application, maintenance and repairing, and does not adopt a mixing device.

The invention discloses a kind fiber curtain cloth automation cut machine assimilate and meet system control method, the system including guide equipment, store cloth equipment, transmission and cut equipment, curtain, acetabula frame, assimilate and meet pull equipment, assimilate and meet control equipment, the control method is though the acetabula assimilate and test the curtain cloth by laser, the test signal drive the acetabula all data service mode change (speed mode and position mode)to achieve accumulate confirm length and pull slot, test edge automatism, to achieve accumulate assimilate and meet. This method is the integrate and comprehensive of the advanced technology. Its form is simple and run accumulatly and reliable, use and maintain easy.

The invention relates to a non-guide rail automatic-tracking flexible crawl trolley. The trolley mainly comprises a travel mechanism (1), a rigid connection plate (2), a magnetic wheel rotary shaft (3) and an axial sensor (4), wherein the travel mechanism (1) provided with two groups of magnetic wheels (18) is provided with a combination structure of an upper pressing plate (9) and a lower pressing plate (10); a pressure spring (12) is connected between the upper pressing plate and the lower pressing plate; the combination structure is fixed through both ends of the rigid connection plate (2)to form a main body of the crawl trolley; moreover, the trolley is provided with a fan gear wheel (7) and a pinion (6); and an angle sensor (5) is fixedly connected with the rotary shaft (17) of the pinion (6). The non-guide rail automatic-tracking flexible crawl trolley has the characteristics of simple structure, reliable operation, low cost and simple use and maintenance, and an execution mechanism of the trolley can be replaced according to practical requirements; therefore, the trolley can be used in engineering projects such as the welding of inner and outer circular seams and vertical seams of pipelines, groove machining, welding seam detection as well as all-position welding and body spraying of spherical tanks.

The present invention relates to a high-pressure liquid-gas / steam tube-type rapid mixing reactor, mainly comprising a liquid inlet atomization assembly (1), a gas / steam inlet assembly (2), a container (3), a mixer gathering outlet assembly (4), and an outer casing assembly (5), wherein, on the front end of the container (3) is arranged the liquid inlet atomization assembly (1) comprising a liquid inlet flange (11), a expansion tube (12), flange assembly parts (13), and an atomization plate (14); in the middle of the container is arranged the a gas / steam inlet assembly (2), on the back of the container is arranged the mixer gathering outlet assembly (4), and the outer casing assembly (5) is provided around the container. By using the atomization assemblies designed in the invention, small-space and short-distance liquid atomization process can be carried out under high pressure. The present invention is provided with compact structure, low cost, high working efficiency, and convenient maintenance.

The invention relates to an LD (Laser Diode) laser phase mixing device and an LD laser phase mixing method, which are used for mixing phases of light which is emitted by an LD light source and is collimated by a first collimating lens. The LD laser phase mixing device comprises a fixed cylindrical seat, a micro-motor, a cross grating and a second collimating lens, wherein the micro-motor is installed on the fixed cylindrical seat; the cross grating is installed on the micro-motor and rotates at high speed under the drive of the micro-motor; the second collimating lens is installed on the fixed cylindrical seat and the cross grating is arranged on an object focal plane of the cross grating to enable light waves emitted by all points on the light emitting surface of the LD light source to be fully mixed on the image focal plane of the second collimating lens after diffraction of the cross grating and the conversion of the second collimating lens. The device provided by the invention has the advantages that the structure is simple, the cost is low, the device is convenient and reliable to use, the device is especially suitable for the field of high-precision laser ranging, any beam of light waves which are emitted towards a reflecting target contains light wave information of all points of the light emitting surface and the sighting error caused by phase unevenness can be basically eliminated through an average effect of a photoelectric receiver.

The present invention is biophotosynthetic reactor apparatus and process for producing micro algae. Inside one transparent photosynthetic greenhouse, there are at least one closed transparent circulating pipeline unit with at least one layer of sealed circulating pipes made of high energy converging light-converting RE material, and light-converting plates or films of high energy converging light-converting RE material. Inside the sealed circulating pipes, chlorella is cultured. The present invention has full utilization of natural illumination, capacity of avoiding hetero microbe contamination, effective control of temperature and CO2 addition and high chlorella yield and quality.

A titanium alloy frame and covering variable cross-section components welding methods, it presets the titanium alloy foiling solder between the frame and covering to weld surface, uses thermal expansion assembly equipments or face pressurized thermal expansion assembly equipments clamping, heats the overall unit in vacuum environment to melting solder and covering entire surface welding, completes solder welding connection through diffusing treatment after solidifying, it also provides the structural components of face pressurized thermal expansion assembly equipments which can be used below 950 degree C repeatedly, the equipment structure is simple, woke reliable, cost low and easy to use, maintenance and repairs. And it reveals the innovative composite art parameters of high temperaturesolder welding and diffusing treatment using FTI high strength titanium alloy solder.

An underwater dry-typed welding camera mainly consists of a camera (1), a lens protecting cylinder (2) and a camera protecting cylinder (3); wherein, a filter (21), an attenuation sheet (22) and a protective glass (23) which are fixed by a lens clamp ring (24) are sequentially arranged at the front end of the lens protecting cylinder (2). A color camera (31) is fixed inside the camera protecting cylinder (3) through a clamp ring (32) and the lens protecting cylinder (2) is screwed with the camera protecting cylinder (3) as a whole which is connected through fixing bolts (37) with a welding robot so as to clearly monitor the whole underwater welding process. The invention has simple structure, reliable work capability, low cost and easy maintenance and use process.

A 7-dof anthropomorphic arm driven by the pneumatic artificial muscles mainly comprises a shoulder joint (1), an elbow joint (2), a wrist joint (3), an arm support frame (4), an upper arm (5), a front arm (6) and a flexible cable (7). The arm support frame (4) is fixed with a base (49) and the pneumatic artificial muscles (44) are arranged in the arm support frame; a steel wire (A1) connected with the pneumatic artificial muscles (44) realizes the rotation of the X, Y, Z shafts through the pulley blocks (B0), (B1), (B2), (B3), (B4) and (B5); the pneumatic artificial muscles (52) driving the elbow joint (2) and the wrist joint (3) to act are arranged in the upper arm (5) and directly operate and control an elbow shaft (21) through a rope (A2) connected with the pneumatic artificial musclesor are respectively attached on a wrist (32) and a palm (34) through a casing tube steel wire (A2) and a casing tube steel wire (A3) so as to realize the rotation round the front arm (6) and the lateral movement. The invention has the advantages of large output force, compliant operation and control, simple structure and small weight simple and easy use, maintenance and repair.

A series locomotive signal two-way receiving coil mainly comprises a balanced two-way receiving coil (1), a fiber glass reinforced plastics casing (2), a fine steel hanger (3) and a two-core shielded-cable lead (4); wherein, the permeable materials of different heights are adopted to form a main magnet core (11) and an assistant magnet core (12) which are bound together to form the balanced two-way receiving coil (1) and two groups of coils are arranged inside the fiber glass reinforced plastics casing (2) in parallel and screwed with the fine steel hanger (3) through a connector (33). The two-core shielded-cable lead (4) is respectively derived from the protective sleeve (32) of two groups of coils. The receiving coil is connected with a series locomotive by a connector (15) on the proper position. The coil has simple structure, low manufacturing cost and easy application and maintenance process.

Disclosed is a household electrical appliance button switch. The household electrical appliance button switch is mainly composed of a base casing assembly (1) and a base cover assembly (2). The two sides of a base cover (21) are provided with barbs (16), the two are buckled and pressed to finish assembling, a base casing (11) is provided with a supersonic wave welding groove (17), and the supersonic wave welding groove (17) cooperates with a supersonic wave welding rib (27) arranged on the base cover (21) for supersonic wave welding. The household electrical appliance button switch has the advantages of simple structure, easy manufacturing, easy popularization, and simple use, maintenance and repair.