153results about How to "Facilitate modular production" patented technology

The invention discloses a railway vehicle body chassis structure. The railway vehicle body chassis structure soles the problems that the giant torque force is caused due to the fact that a front-arrangement type vehicle hook mounting hole is formed in the side face of a vertical plate of a traction beam, and no operation space exists for mounting a steering frame traction base. The railway vehicle body chassis structure comprises two chassis edge beams, a chassis end beam and a sleeper beam arranged between the two chassis edge beams, a traction beam, a vehicle hook mounting sectional material and a traction guide beam are arranged between the sleeper beam and the chassis end beam, the traction beam is fixed between the sleeper beam and the vehicle hook mounting sectional material, and the traction guide beam is fixed between the vehicle hook mounting sectional material and the chassis end beam. Traction wing plates are fixedly arranged on the two sides of the vehicle hook mounting sectional material, the traction wing plates are fixedly connected with the chassis edge beams on the corresponding sides, and a jumper box is arranged between the traction wing plates and the traction guide beam. The problems are completely solved by optimizing the structures of vehicle hook mounting sectional material, the traction beam and other components, and the high-intensity performance that a vehicle body can bear 1000 kN of compression loads is kept.

The invention discloses a railway vehicle head structure. The railway vehicle head structure comprises a vehicle body main structure, a vehicle head anti-collision structure and an anti-creeper. A vehicle head is divided into a safety zone of which the longitudinal load strength is decreased progressively in a gradient mode, a secondary deformation zone and a main deformation zone according to the longitudinal direction of a railway vehicle. The safety zone is the vehicle body main structure and comprises a passenger room zone and a driver seat zone. The secondary deformation zone is a zone from a cab front door to an anti-creeper installation plate and comprises the vehicle head anti-collision structure and an anti-creeper installation structure. The main deformation zone comprises a cab floor located in front of the anti-creeper installation plate and the anti-creeper. A first-stage stopping structure is arranged between the secondary deformation zone and the main deformation zone. A second-stage stopping structure is arranged between the safety zone and the secondary deformation zone. According to the railway vehicle head structure, a vehicle body deforms and absorbs energy in a controllable and orderly mode, and the good safety performance is obtained.

The invention discloses a pyrolysis device for in-situ conversion of carbon-containing resources by microwave-assisted pyrolysis. The device comprises a microwave-assisted pyrolysis reactor, a solid outlet of the reactor is connected with an inlet of a pyrolytic carbon cooler, an outlet of the pyrolytic carbon cooler is connected with a slag storer through a deslagging machine, a gas outlet of the reactor is connected with an inlet of a condenser through a pipeline, the condenser is provided with a gas-liquid separator, a gas outlet of the condenser is connected with a gas purifier, an outlet of the gas purifier is connected with a gas compressor, a liquid outlet of the condenser is connected with a liquid circulating pump, then one branch of the condenser is connected with an oil storage tank, and the other branch of the condenser is connected back to the condenser through a cooling medium circulating system. The invention further discloses a method for the in-situ conversion of the carbon-containing resources by the microwave-assisted pyrolysis. By the pyrolysis device and the method for the in-situ conversion of the carbon-containing resources by the microwave-assisted pyrolysis, various low-grade carbon-containing resources can be collected, stored and continuously produced at an economic scale.

The invention relates to a bi-directional power flow controlled multi-level mutual balance solid state transformer and a realization method thereof. The solid state transformer is a three-phase solid state transformer which is designed by using a mutual balance structure, and uses an AC-DC-AC three step type transform structure. A high voltage level, an isolation level and a low voltage level are comprised. The high voltage level and the isolation level are transformers with the same three-phase structure and are composed of sub units. The low voltage level is a single whole module which realizes an automatic mutual balance structure. Three-phase sub units of the high voltage level are connected in a star mode. The low voltage level is an alternating current output end with a three-phase four-wire wiring mode. The solid state transformer can realize power bi-directional flow. The whole three-phase system uses an independent structure, which is convenient for three-phase independent control and modular production. Through the direct current bus parallel module of the low voltage level, a three-phase electric power automatic mutual balance function is realized, so that the practical problem of the solid state transformer is solved.

The invention discloses a transverse polar plate bipolar static agglomeration dedusting device and a dedusting method thereof, which solve the problem that the conventional dedusting device is complex in structure and relatively poor in dedusting effect. The invention adopts the technical scheme that the transverse polar plate bipolar static agglomeration dedusting device comprises a deduster casing as well as an air inlet pipe and an air outlet located at the two ends of the deduster casing; a plurality of cathode frameworks and a plurality of anode frameworks are vertically, alternately and uniformly arranged in the deduster casing in the direction of an airflow; a plurality of cathode plates and a plurality of cathode coronal lines are alternately and uniformly distributed on the cathode frameworks in the vertical direction, and a plurality of anode plates and a plurality of anode coronal lines are alternately and uniformly arranged on the anode frameworks; moreover, the cathode coronal lines are corresponding to the central lines of the adjacent anode plates in the direction of the airflow, and the anode coronal lines are corresponding to the central lines of the adjacent cathode plates in the direction of the airflow; the cathode frameworks are connected with the high-voltage output ends of a high-voltage DC power supply via a high-voltage cable, and the anode frameworks are connected with the grounding pole of the high-voltage DC power supply via a grounding cable. The transverse polar plate bipolar static agglomeration dedusting device is simple in structure, small in size, simple and convenient to operate, outstanding in the dust collection effect of the reverse sides of the transverse polar plates, small in reentrainment of dust, and has the effect of static agglomeration dedusting.

Disclosed is a washing machine control panel base (2) with the function of automatically adding detergent, wherein at least one chamber (4) for adding solid detergent, at least one container (5) for holding liquid detergent, and an automatic detergent adding device (6) communicated with the chamber (4) and the container (5) are arranged in the control panel base (2); at least two detergent adding ports (7) are formed on an upper end face (21) of the control panel base (2), and the detergent adding ports (7) are in communication with the chamber (4) and the container (5) in a one-to-one corresponding mode; and an accommodation space (26) is arranged below the control panel base (2) and is formed by an outer circumferential wall (22), the upper end face (21) connected to the outer circumferential wall (22), and an inner circumferential wall (23) serving as a clothes adding port (24), with the chamber (4), the container (5) and the automatic detergent adding device (6) all being arranged in the accommodation space (26). According to the design, the internal space of the washing machine control panel base (2) is fully utilized, and the brand new arrangement is convenient for users; and the structure of the chamber (4) for adding solid detergent is integrally formed and is simple.

The invention discloses an assembled reinforced concrete beam-slab structural system with a cast-in-situ layer in a building structure. The assembled reinforced concrete beam-slab structural system comprises a superposed beam, a superposed slab, reinforcing mesh pieces, the cast-in-situ concrete superposed layer and beam negative reinforcements, wherein the superposed beam is a reinforced concrete precast beam; outwardly projecting tongue-and-grooves are formed in two sides of the upper part of the superposed beam; the superposed slab is horizontally arranged and is a reinforced concrete precast slab; cover-plate-type tongue-and-grooves are formed at the positions, corresponding to the outwardly projecting tongue-and-grooves, on two sides of the superposed slab, and overlapped on the outwardly projecting tongue-and-grooves; the reinforcing mesh pieces and the beam negative reinforcements are horizontally arranged above the superposed beam and the superposed slab; the reinforcing mesh pieces are bundled up with corresponding reinforcements in the superposed beam and the superposed slab; the beam negative reinforcements are bundled up with corresponding reinforcements in the superposed beam; after arrangement of the reinforcing mesh pieces and the beam negative reinforcements, concrete is poured to form the cast-in-situ concrete superposed layer. The assembled reinforced concrete beam-slab structural system has favorable integrity and mechanical property, and the integrity and the anti-seismic property can be improved.

The invention discloses a receiver and an assembly technique thereof. The receiver comprises a shell, and a vibrating diaphragm mechanism and an electromagnetic drive mechanism arranged in the shell; the vibrating diaphragm mechanism and the electromagnetic drive device are arranged in a shell inner cavity; a vibrating plate with one suspended end is arranged at the vibrating diaphragm mechanism; the electromagnetic drive mechanism comprises a coil and a magnetic field component for producing a fixed magnetic field. The receiver with this structure divides the shell into two shell bodies, the fixed frame of the vibrating diaphragm mechanism is directly arranged on the shell; the receiver disclosed by the invention is simple in structure, and simplifies the mounting process; the assembly technique is as follows: fixing a first permanent magnet on an inner wall surface of the first shell to form a first module; fixing a second permanent magnet and the coil on the inner wall surface of the second shell to form a second module; fixing a soft magnet on the vibrating plate to form the third module; and then assembling three modules together to finish the assembly of the receiver and realizing the modular mounting; and the assembly efficiency of the receiver is improved.

This invention relates to synthetic diesel oil, which is produced by: (1) mixing isooctyl nitrate 30 wt.%, cyclohexylamine 30 wt.%, ferrocene 30 wt.%, and zinc peroxide 10 wt.% to obtain composite additive; (2) mixing fossil-grade diesel oil 10-40 parts and the composite additive 0.3-2 parts to obtain mother diesel oil; (3) mixing 200# solvent oil 10-30 parts and lightweight aviation kerosene 5-20 parts to obtain modified 200# solvent oil; (4) mixing fatty acid methyl ester or C9 10-60 parts, the mother diesel oil and the modified 200# solvent oil to obtain the synthetic diesel oil. The synthetic diesel oil has such advantages as low cost, simple process and abundant raw materials, and can be used for replacing standard fossil-grade diesel oil.

The invention discloses a coordination control system of a four-wheel independent drive and independent steering electric automobile. The coordination control system comprises a global signal feedback module, an entire vehicle control module, a coordination control module and a motor control module which are connected in sequence, wherein the entire vehicle control module comprises an entire vehicle controller, and a battery management system, a vehicle-mounted lighting device and a refrigerating and heating device which are connected with the entire vehicle controller. Since the coordination controller is arranged, over-complex design of the entire vehicle controller can be avoided, and the real-time response speed and the operation reliability of the entire vehicle controller, the coordination controller and the motor controller are improved. The energy utilization efficiency and the driving comfort of the four-wheel independent drive and independent steering electric automobile are improved by the coordination controller, and the safety in running is improved. A more scientific modular control is realized, the modular production of the electric automobile is facilitated, and the technical innovation of an electric automobile controller manufacturer is promoted, so that the development of the entire electric automobile industry is promoted.

The invention provides a fixture used for processing a small moving blade in a turbine. The fixture comprises a transmission body and an installation disk of the transmission body, wherein the transmission body is fixed on the installation disk; a dovetail groove is arranged on the end surface of the transmission body for installing a blade blank; the blade blank is provided with a process tenon which is of dovetail shape and is adaptive with the dovetail groove; a linear hydraulic cylinder is arranged in the transmission body, and a piston rod of the linear hydraulic cylinder corresponds to the process tenon; an energy storage and a pressurizing port are arranged on the transmission body; the pressurizing port is connected with a hydraulic station; the hydraulic station is used for pressurizing the linear hydraulic cylinder and the energy storage simultaneously by the pressurizing port; and the energy storage is used for maintaining the system pressure. The invention can realize the one-time clamping of a workpiece on a milling machine, has strong commonality and saves the cost of the fixture; the modularization centralized processing can be realized, so that the processing technique is simple, thereby greatly improving the working efficiency, shortening the production period, improving the processing accuracy and lowering the labor intensity; in addition, the processing period is shortened by 30%, and the fixture in category II can be saved by 40%.

The present invention discloses a seven-level inverter, consisting of a direct current power supply, two switch capacitor banks and a full-bridge switch group, wherein each switch capacitor bank is composed of a switch capacitor, two power switch tubes and three uncontrollable diodes; and the full-bridge switch group is provided with a traditional full-bridge structure. The seven-level inverter disclosed by the invention has ten main switch states, can be used for outputting seven voltage levels namely 3E, 2E, E, 0, -E, -2E and -3E, is only provided with one direct current power supply, and can be used for boosting the input direct current power supply without using a transformer; and compared with a seven-level inverter with a traditional structure, the complexity of devices can be greatly reduced, the manufacturing cost can be effectively reduced, and the inverting efficiency can also be improved.

The invention provides an isolation double-stage chain type current transformer applied to energy storage of a high-capacity battery. A bidirectional isolation full-bridge current transformer with a high-frequency isolation current transformer is additionally arranged between each H bridge module of a conventional chain type current transformer and the battery, so that a battery side is insulated from a high-voltage power grid. The bidirectional isolation full-bridge current transformer is controlled to keep voltage of a middle direct-current side; meanwhile, secondary pulse power on the battery side of the chain type current transformer can be buffered; a chain type energy-storing current transformer can be used as an interface of battery energy storage and the power grid, so that high-voltage direct-current grid connection can be realized, the power dispatching of the power grid is accomplished, and the volumes of harmonic and filter elements of an energy storage system, which are accessed into the power grid, can also be reduced. According to the isolation double-stage chain type current transformer disclosed by the invention, the requirements on an insulation grade of a battery module can be reduced, the secondary pulse power on the battery side is reduced, and the safety and the reliability of the battery are guaranteed; and meanwhile, different types of batteries with different voltage grades can be accessed so that the isolation double-stage chain type current transformer can be easily produced in a large scale, and is suitable for a large-capacity, high-voltage and grid-connected battery energy storing system.

The invention provides a convection heat dissipation type LED head lamp, comprising a plurality of LED lightening and heat dissipating units, a substrate at which the lightening and heat dissipating units are arranged and a framework; the substrate is fixedly connected with the framework; wherein, the substrate comprises a plurality of strip bodies which are arranged with a certain space length or take a gridding shape to form a hollowed-out structure, so that a plurality of channels which are capable of direct convection with the outside air are formed on the substrate; the strip bodies or the gridding structure is provided with the LED lightening and heat dissipating units at intervals; the LED lightening and heat dissipating units comprise LED chips, circuit boards, circuit accessing pieces and corresponding radiators and the LED lightening and heat dissipating units constitute an independent water-poof sealing member. The head lamp has excellent moisture-proof, water-proof and heat dispersion performance, modular structure and easy assembling, production and on-site maintenance.

The invention discloses a power grid voltage regulation method of an angle form cascade synchronous compensator. Unbalanced three-phase power grid voltage is independently subjected to positive and negative sequence voltage detection to obtain positive sequence voltage dq shaft components Vd[P] and Vq[P] and negative sequence voltage dq shaft components Vd[N] and Vq[N]; a difference value between the positive sequence voltage dq shaft components and a voltage control instruction as well as a difference between the negative sequence voltage dq shaft components and the voltage control instruction can be independently obtained, and a deviation is subjected to slip form PI control to obtain a STATCOM (Satellite Communications) line current positive and negative sequence dq shaft control instruction; after the STATCOM line current positive and negative sequence dq shaft control instruction is subjected to synchronous frame transform, zero sequence circulating current is combined to obtain a STATCOM phase current instruction; the STATCOM phase current instruction is subjected to current dead-beat control to obtain each-phase chain link modulating wave signal; carrier phase-shifting modulation is used for controlling each module switch to act, finally, positive sequence reactive current and negative sequence current are injected into a power grid, the positive sequence voltage of the power grid is supported, and the voltage fluctuation of a point of common coupling is reduced; and the negative sequence voltage of the point of common coupling is inhibited, and the unbalance of power grid voltage is improved. A slip form PI control method adopted by the invention can quickly support the positive sequence voltage of the power grid, control the positive sequence voltage of the power grid, inhibit short-time voltage leap and maintain the stability of the power grid voltage.

The invention discloses a vehicle-mounted type heat storage and supply device and a work method thereof. The device comprises a heat charging and exchanging device, a heat transporting device and a heat releasing and exchanging device. The heat charging and exchanging device is arranged at an industrial heat source, and the heat releasing and exchanging device is arranged at a user site with a heat requirement; the heat transporting device comprises a transporting vehicle, a heat preservation box body, a controller, a plurality of heat storage unit modules, a heat conduction pipeline and a pumping system, each heat storage unit module is connected with a branch of the heat conduction pipeline, communicating valves are arranged on the branches, and each communicating valve and the pumping system are connected with the controller; and when heat charging is conducted, the heat conduction pipeline is connected with a factory waste heat transporting pipeline in the heat charging and exchanging device, and when heat releasing is conducted, the heat conduction pipeline is connected with a user side transporting pipeline in the heat releasing and exchanging device. According to the vehicle-mounted type heat storage and supply device and the work method thereof, the heat storage unit modules are subjected to modularization, heat storage and heat releasing can be reasonably conducted according to heat supply requirements of a user, work efficiency is improved, and the service life is prolonged.

The invention provides a compass array display device capable of facilitating production and assembly, displaying on double sides and preventing water and dust witch rich color. The invention adopts the technical scheme that: an electromagnet and a control circuit are arranged in a hollow box formed by connecting a main support plate, a secondary support plate and a rim; the electromagnet and the control circuit are covered by using a filler; positioning fasteners are arranged on the front of the main support plate and the back of the secondary support plate; a compass is fixed in a compass frame; a transparent panel is arranged on the outer lateral surface of the compass frame; multi-color bodies arranged in an array can be wrapped by using an integral transparent shell; a magnet arranged on the main support plate realizes connection of the secondary support plate or a support frame made of steel; and a plurality of compass display unit arrays consisting of 2 to 5 compasses and the electromagnet are arranged on the main support plate, and the surface colors of the multi-color bodies in the compasses comprise cyan, magenta, yellow and white.

Provided are an explosion-proof dust collector and an explosion-proof control method. The explosion-proof dust collector comprises a dust collector body (3) for collecting combustible dust, an inerting gas injection system, a detection system for detecting CO concentration and / or temperature and a control system, wherein the inerting gas injection system includes buffer tanks (11), control valves (1), one-way valves (4), inerting dust-proof spray heads (2) and an external inerting gas supply system. The explosion-proof control method comprises the following steps that when the detection system detects that the internal temperature of the dust remover body (3) rises to a set value, or detects that the CO concentration is higher than a set value, the control system controls the inerting gas injection system to be automatically started for running or a worker starts the system; after the inerting gas injection system is started, inerting gas is sprayed into the inerting dust-proof spray heads (2) located at the top of the dust remover body (3), then the control system controls the inerting dust-proof spray heads (2) at the top to reduce the injection rates of the inerting gas, and inerting gas is sprayed into the inerting dust-proof spray heads (2) at the bottom.

The invention discloses a multi-channel LED current equalization drive circuit. The traditional drive circuit is complicated and has high cost. In the invention, a positive input end of a high-frequency AC voltage pulse generating circuit is connected with a positive end of an external DC input power supply, a negative input end of the high-frequency AC voltage pulse generating circuit is connected with a negative end of the external DC input power supply, one output end of the high-frequency AC voltage pulse generating circuit is connected with one end of an inductor Lr, the other end of theinductor Lr is connected with one end of a capacitor Cr, and the other end of the capacitor Cr is respectively connected with a positive input end of a forward rectifying circuit and a negative inputend of a backward rectifying circuit; and the other output end of the high-frequency AC voltage pulse generating circuit is connected with a negative input end of the forward rectifying circuit and apositive input end of the backward rectifying circuit. The currents of two parallel subcircuits are equalized by the charge and discharge equalization of the capacitor, and the number of LEDs with equalized currents can be increased by one time under the condition of same output voltage.

The invention discloses a workbench of a five-axis drilling and planting integrated machine. The workbench comprises a machine frame and a brush body clamp assembly. The brush body clamp assembly comprises an axis-B swinging mechanism and a plurality of brush body clamps capable of clamping brush bodies. Each brush body clamp can be driven by the axis-B swinging mechanism to swing around the axis B. The brush body clamp assembly is fixedly installed on an axis-A swinging mechanism. The axis-A swinging mechanism is installed on an axis-Y translation mechanism capable of moving forwards and backwards. The axis-Y translation mechanism is installed on an axis-X translation mechanism capable of moving left and right. The axis-X translation mechanism is installed on an axis-Z lifting mechanism capable of moving up and down. The rotating axis A of the axis-A swinging mechanism is parallel to the axis X, and the rotating axis B of the axis-B swinging mechanism is parallel to the axis Y. The workbench of the five-axis drilling and planting integrated machine is simple and portable in structure, small in consumed material, low in weight, and capable of promoting modular sub-unit manufacturing.

The invention relates to a large-stroke high-rigidity series-parallel hybrid machine tool with the reconfigurable characteristic. The large-stroke high-rigidity series-parallel hybrid machine tool comprises a fixed working table, an X-direction movement unit, a Y-direction movement unit, a lifting adjusting device, three driving branches with same structures, a movable platform and a main shaft head. A special clamp is installed on the fixed working table, and the X-direction movement unit and the Y-direction movement unit are each composed of a rack and a servo driving unit. The lifting adjusting device comprises three passive branches with the same structures and a middle active branch, the structure dip angle of a parallel structure can be adjusted, and the parallel structure has the reconfigurable characteristic. The three driving branches with the same structures are connected with the lifting adjusting device and the movable platform, and one-dimensional movement and two-dimensional movement can be achieved through the space closed loop parallel mechanism. The large-stroke high-rigidity series-parallel hybrid machine tool has the beneficial effects of good structural symmetry, high rigidity, large working space, high posture capacity, good in dynamic performance and the like; meanwhile, the beneficial effects of a series machine tool and a parallel machine tool are achieved at the same time; and the large-stroke high-rigidity series-parallel hybrid machine tool can be used for five-axis machining of large heterogeneous part complex surfaces.

The invention discloses a laser capable of realizing sub-nanosecond Q-switched output by controlling the characteristics of pump light, and belongs to the technical field of all solid-state lasers. It includes a pump source arranged in sequence along the propagation direction of the light, a fiber coupling device, a rear cavity mirror, a laser gain medium, an electro-optic Q-switching element, and a coupling output mirror, in which the rear cavity mirror, the laser gain medium, the electro-optic Q-switching element and The outcoupling mirror forms a resonant cavity. The pumping source is a semiconductor laser, which outputs pumping light polarized in the π direction. The length of the resonant cavity is less than 30mm. The laser gain medium is Nd with linear polarization absorption characteristics: YVO Crystal, the output end face of the laser gain medium is cut along the a-axis to form a Brewster angle, and the pump end of the laser gain medium passes through the optical surface coating as Rear mirror. The laser has the advantages of simple and compact structure, easy modular production, high output pulse stability and the like.

The invention discloses a five-level current transformation topological structure with a bi-directional power switch, comprising a capacitance link and a current transformation unit, wherein the capacitance link consists of four capacitors connected in series; the current transformation unit consists of two bi-directional power switches, two diodes and four switch tubes with anti-parallel diodes. The invention also discloses a three-phase five-level current transformer adopting the topological structure. According to the topological structure and the three-phase five-level current transformer, the bi-directional current flowing of the bi-directional power switch is controlled, and also the output of multiple levels of a circuit can be ensured as paths of the positive current and the negative current are controlled independently by utilizing the bi-directional power switch; on the basis of outputting five levels, the number of power devices and direct-voltage sources can be reduced greatly, the voltage stress of the bi-directional power switch is only one fourth of the bus voltage, the topological structure is symmetrical, and the modularized production is convenient.

A LED chip module contains heat conductive holder, insulator, two conductive pins and LED chip wherein the heat conductive holder having through hole, said insulator having base part with through hole, insulation column in bottom positioned in through hole, the insulation column having exposed through hole where the two pins are located, said LED chip located in through hole of insulator and fixed at heat conductive holder, the positive and negative pole of said chip connected with two pins by wire. Said invention greatly raises the radiation efficiency with easy assembling, small volume and low cost.

The invention relates to a mechanical device for achieving a two-dimension closed motion trail through a single power source. The mechanical device comprises a device bottom plate, a low-position trail changing slope, a high-position trail changing slope, a trail changing locating mechanism, a sliding rail, a sliding block, a high-position rack mechanism, a low-position rack mechanism, a gear, a screw rod, a nut, guide rods, a roller shaft, a roller and a return-to-zero mechanism. Under driving of the forward and reverse power sources, the mechanical device can generate the two-dimension closed motion trail. The mechanical device has the advantages that the structure is simple, rigidity and precision are high, pure mechanical coupling is achieved, the trail is easy to adjust, and reliability is quite high. The mechanical device adapts to high-temperature, low-temperature, strong-electromagnetism, strong-vibration, dust and corrosive gas environments, and is a solution scheme for replacing multi-power-source relevant equipment and executing the single repeated motion.

The invention discloses a washing machine control panel seat with built-in detergent release chambers. The washing machine control panel seat is characterized in that at least one solid detergent release chamber is arranged in a control panel seat, each chamber is provided with a detergent release opening which is formed in the upper end surface of the control panel seat, partition plates are arranged in the chambers, each partition plate is divided into an upper-layer space and a lower-layer space by the corresponding partition plate, vertically through water leaking openings are formed in the partition plates, the upper-layer spaces are provided with water inlet structures, and water spraying openings are formed in the lower-layer spaces. The chambers comprise box bodies and annular fastening covers, openings are formed in the upper portions of the box bodies, the annular fastening covers are fastened at the peripheral edges of the openings, the box bodies and the annular fastening covers are matched with one another at the peripheral edges of the openings to form water channels, water inlets are formed in the water channels, a plurality of water balancing through holes which are communicated with the upper-layer spaces are further formed in the inner side walls of the water channels, water guide plates are arranged in the water channels, and the water inlet structures are formed by the water balancing through holes and the water guide plates. The washing machine control panel seat has the advantages that internal spaces of the washing machine control panel seat can be sufficiently utilized, and the washing machine control panel seat in novel layout brings convenience for users during usage.

The invention relates to a hydraulic swing cylinder driving joint based robot hydraulic mechanical arm. The robot hydraulic mechanical arm includes a small joint arm and a big joint arm; the small joint arm and the big joint arm are connected through a joint arm connection rod; each of driving joints of the small joint arm and the big joint arm includes two hydraulic swing cylinders, wherein output shaft ends of the two hydraulic swing cylinders are mutually perpendicular; the hydraulic swing cylinders are arranged in a support; the output shaft ends of the hydraulic swing cylinders in the support are connected to gears; and the gears are engaged with potentiometer gears at the tails of the potentiometers. The robot hydraulic mechanical arm is simple in structure, is convenient in modular production, and can be applied and promoted to industry; a driving section is driven by the hydraulic swing cylinders, a large output torque can be acquired, and the bearing capability is further improved; and meanwhile, the rigidity is better than that of motor-driven mechanical arms, the production cost is low, the difficulty of manufacture is small, better economy can be acquired, and the practicality is high.

The invention discloses a leakage guiding device of a B-type enclosure system of an LNG ship, belongs to the technical field of ship construction. The device comprises a guide mechanism, flow-guidingtube, lap plate and support mechanism, the deflection mechanism comprises a plurality of deflection plates with deflection grooves, A plurality of deflector plates are connected to the upper surface of the insulating layer of the B-type enclosure system of the LNG ship to form an annular liquid collecting tank, the annular liquid collecting tank is communicated with the collecting device of the LNG ship through a diversion pipe, two adjacent delfection plates are connected through transition plates; A low surface of that flow guiding mechanism is connected with an upper surface of an insulation layer of a B-type enclosure system of an LNG ship, two sides of the flow guiding mechanism are connected with a splash screen through an overlapping plate, and the upper surface of the flow guidingmechanism is connected with a bottom plate of a liquid cargo tank of the LNG ship through a support mechanism, wherein the upper surface of the flow guiding mechanism is connected with the bottom plate of the liquid cargo tank of the LNG ship through a support mechanism. The diversion device can timely divert the leaked LNG out of the gap between the cargo tank and the splash screen, can effectively prevent the LNG from accumulating in large quantities, and can prevent the LNG from damaging the structure of the cargo tank and the splash screen.

The invention relates to a reinforced vertical flow filter bed which is in a round structure comprising two semicircles, an anti-seepage membrane is laid at the bottom of the filter bed, a water collecting pipe is laid on the anti-seepage membrane, and both ends of the water collecting pipe are respectively connected with a ventilation pipe; a ground substance is filled inside the filter bed, and plants are planted on the surface of the filter bed; and a main water distributing pipe is respectively distributed on the two semicircles of the filter bed along the diameter direction of the filter bed, and branch water distributing pipes communicated with the main water distributing pipes are semicircularly and outwards radially arranged from the center of the filter bed. By adopting the round vertical flow filter bed structure, not only the module production of facilities can be realized, but also the water distribution on the surface of the filter bed is more uniform and comprehensive, the filter bed structure is more stable and attractive, more building areas and materials are saved, and the reinforced vertical flow filter bed is a higher-efficiency manual filter bed sewage treatment system, thereby solving the problems of imperfect treatment and the like caused by dead angles in a square filter bed. The facility is suitable for the treatment of rural domestic sewage, urban landscape water, lake sewage and the like, and has the characteristics of high treatment efficiency, good landscape effect, resource saving, flexible operation, wide application range and the like.

The invention discloses a dual-voltage power supply. The dual-voltage power supply comprises a power input end, a power output end, a control transformer, a power supply control circuit and a voltage detection circuit, wherein a rectifier circuit and a voltage-doubling circuit are connected in series between the power input end and the power output end; the control transformer is connected with the power input end; the power supply control circuit and the voltage detection circuit are connected with the control transformer; the power supply control circuit comprises a first relay and a second relay, wherein the first relay is arranged between the power input end and the control transformer, and the second relay is arranged among the power input end, the rectifier circuit and the voltage-doubling circuit; the control transformer is provided with a 220V primary winding and a 380V primary winding; and the voltage-doubling circuit comprises two groups of capacitor-resistor circuits which are connected in series with each other. An inverter welding machine can be used in the places with a power supply of 380 V or 220 V very conveniently; a good radiating effect is achieved; the connection wires among the components are the shortest; and a rectifier board adopts an integrated output piece, so that the faults of the rectifier board are reduced.