174results about How to "Easy production and installation" patented technology

The invention relates to a space foldable mechanism, in particular to a space foldable mechanism derived from five-revolute-pair units, aiming at solving the problem that a high-storage-ratio space foldable mechanism is not developed at present. The scheme one is that a first connecting rod is rotatably connected with a first revolute pair, the first connecting rod is connected with a second connecting rod, the second connecting rod is connected with a third connecting rod and the third connecting rod is connected with a fourth connecting rod. The scheme two is that three foldable units are arranged in the shape of a triangular closed loop. The scheme three is that six space modules are sequentially connected to form a closed loop structure. The scheme four is that a first five-revolute-pair unit is connected with a second five-revolute-pair unit, the second five-revolute-pair unit is connected with a third five-revolute-pair unit and the third five-revolute-pair unit is connected with the first five-revolute-pair unit. The scheme five is that a first umbrella-shaped module is connected with a second umbrella-shaped module, the second umbrella-shaped module is connected with a third umbrella-shaped module and the third umbrella-shaped module is connected with the first umbrella-shaped module. The space foldable mechanism derived from the five-revolute-pair units is used for spacecrafts.

The invention provides an operating mechanism of a miniature circuit breaker, which comprises a housing, a handle and a static contact. The internal surface of the housing is provided with a handle shaft. The handle is sleeved on the handle shaft. The invention further comprises a transmission rod, a transmission component and an electromagnetic trip gear. The transmission rod is hinged with the handle and the transmission component. The transmission component comprises a lock latch shaft, a lock latch spring, a lock catch, a moving contact, a jumping latch and a jumping latch spring. The lock latch shaft is arranged on the internal surface and parallel with the handle shaft. The other parts is sleeved on the lock catch shaft in turn. The moving contact and the static contact are matched with each other. A triggering lug boss is arranged on the jumping latch, which is matched with a releasing rod pushed by a moving iron core in the solenoid of the electromagnetic trip gear. The invention can further comprises an adjustable reaction spring used for restricting the operation of the moving iron core, a bimetallic strip, an arc striking tab and an arc suppressing device. The invention has the advantages of less components, simple structure, good stability , low cost, convenient production and installation, safety and adjustable setting current.

The invention discloses a fuel cell. The fuel cell comprises a box body, a box cover, a galvanic pile module, a hydrogen gas circulation pump, an air path system, a cooling system, a fuel cell controlsystem, a ventilation part and a hydrogen feeding integrated manifold, wherein the galvanic pile module occupies a position at one side of a first cavity of the box body; the fuel cell control systemis arranged above the galvanic pile module; a hydrogen gas inlet valve, an air inlet valve, a cooling liquid inlet valve, the hydrogen gas circulating, a hydrogen gas outlet valve, an air outlet valve and a cooling liquid outlet valve are distributed at the position of the other side of the first cavity of the box body; an opening is formed in one side face of the box body and an exhausting opening is formed in a side face of the box body at one opposite side of the opening; the ventilation part is mounted at the opening; the air path system and the cooling system are mounted on a first bottom plate at the outer side of the box body; the fuel cell disclosed by the invention is reasonable in layout, compact in structure and simple in finished product assembling; the cost is relatively lowand the quality is effectively controlled.

The invention relates to an optical parametric oscillator, which comprises a nonlinear optical material (1) with the double-zero dispersion wavelength, a high reflector (2), an output mirror (3), a parametric oscillation optical beam collimator (4), a parametric optical line width compressor (5), a pumped optical coupler (6), a lambda/2 phase retarder (7), a laser power controller (8) and an optical isolator (9). The nonlinear optical material (1) has a double-zero dispersion wavelength and is arranged in a resonant cavity formed by the high reflector and the output mirror. The pumped optical wavelength is in the anomalous dispersion regime of the photonic crystal fiber, thereby ensuring the phase matching conditions and generating the highly efficient four-wave mixing effect. For the parametric oscillation formed by simplifying the four-wave mixing, the wavelengths of the two parametric lights are respectively arranged at the double-zero dispersion wavelength of the photonic crystal optical fiber, thereby realizing the group velocity dispersion compensation of the parametric light, solving the problem of the ultra-short pulse dispersion compensation, and greatly reducing the pumping threshold.

The invention discloses a height-adjustable geocell. Four adjacent fixing plates of a geocell are connected through connecting pieces. The geocell is convenient to manufacture and install and is highin integral strength. A unit fixing plate and a connecting piece can be added at will at the edge of the geocell, so that the length and width of the whole geocell are increased, and the geocell is good in expansibility. Gauge piles are located below the connecting pieces and limit the strength, such as moment, of the geocell on the ground. Since the gauge piles are embedded under the ground, deeper fixation is formed, and the tensile strength of the geocell is increased. Unit movable plates are installed at two sides of the unit fixing plate, so that the height of the geocell can be adjusted.The geocell can meet different working conditions, so that the working adaptability of the geocell is improved and the application range of the geocell is greatly enlarged.

The invention discloses a frequency doubling self-regulating Q green laser inside a double-doped chrome yttrium aluminum garnet composite photassium titanyl phosphate cavity,and relates to a green laser. The self-regulating Q green laser is provided with a pumping source, a micro lens, a first column-shaped lens, a second column-shaped lens and a laser working medium Cr, Nd:YAG/KTP composite crystal. The pumping source, a micro lens, the first column-shaped lens, the second column-shaped lens and the laser working medium Cr, Nd:YAG/KTP composite crystal sequentially are arrayed on a same plain shaft from front to back. Anti-reflection film and a high-reflective film are plated on the rear surface of the laser working medium Cr, Nd:YAG/KTP composite crystal to serve as a back cavity lens of the laser cavity. High-reflective film and anti-reflection film are plated on the front surface of the laser working medium Cr, Nd:YAG/KTP composite crystal of the laser cavity. The number of optical elements used for the laser is small, the production cost is low, the structure is simple and compact, and the laser is convenient to produce and assemble and operate and use by a non-professional person.

The invention provides a large-angle LED illuminating device, which consists of a lampshade, a printed circuit board, LED lamps and a heat dissipation column, wherein the lampshade comprises an outer cover and a diffuser; the printed circuit board is welded with the LED lamps into a whole; the LED lamps are distributed in an annular array by taking the centre of a circle of the printed circuit board as a center; the LED lamps are welded on the upper surface and the lower surface of the printed circuit board or welded on the upper surface or the lower surface of the printed circuit board; the heat dissipation column is fixedly or movably connected with the printed circuit board; and angles of the LED lamps and the printed circuit board are between 20 and 170 DEG. Maximum irradiation angle of light is expanded to 290 DEG by different angles and arrangement scheme of the LED lamps on a light source board so as to achieve the effects of increasing the whole LED light source angle and uniformly illuminating. The device solves the technical problems of small illumination angle and complicated structure of the prior light source, and is simple in production technology and convenient to assemble.

A turbocharger with a two-stage supercharging function relates to the technical field of turbocharger equipment of internal combustion engines of passenger motor vehicles and comprises a high-pressure turbocharger and a low-pressure turbocharger. An air channel which is communicated with a high-pressure turbine air inlet and a low-pressure turbine air inlet is arranged on a body of a high-pressure turbine shell, a flow control valve which is used for controlling airflow in the air channel is mounted on the air channel, a low-pressure turbine shell is integrally connected with the high-pressure turbine shell, and the low-pressure turbine air inlet is connected with a high-pressure turbine exhaust opening. The turbocharger with the two-stage supercharging function not only solves the conflict between high torque of a passenger motor vehicle an engine at a low rotation speed and maximization of power at a high rotation speed, but also is compact in structure, small in occupied space, fine in sealing performance, high in operational reliability and simple and convenient in production and installation, and has a high service value when used on passenger motor vehicles and the like with narrow engine spaces.

The invention discloses a deep ultraviolet light laser with the tunable wavelength and belongs to the technical field of photoelectrons and laser. High nonlinear optical materials are placed at the emergent end of a high reflective mirror, an output beam collimator is placed at the output end of the high nonlinear optical materials, a pump light coupler is placed at the input end close to the high reflective mirror, a dispersion compensation element is placed in front of the incidence end of the pump light coupler, a polarization controller is placed in front of the incidence end of the dispersion compensation element, a pump light power controller is placed in front of the incidence end of the polarization controller, an optical isolator is arranged at the incidence end of pump light, and a spectral filtering piece is placed at the emergent end of the whole light path. The deep ultraviolet light laser with the tunable wavelength overcomes the defect of large group velocity mismatching between the pump light and deep ultraviolet light and does not need multiple frequency components. The optical device is simple and high in conversion efficiency. Due to the fact that the pump wavelength, pump light power and the polarization state of the pump light are adjustable within a certain range, the tunable laser output of a deep ultraviolet laser wave band is achieved.

The invention relates to the technical field of aerospace, in particular to a deformable wing driven on the basis of a shape memory alloy, and a deformation control method of the deformable wing. Thedeformable wing comprises multiple groups of wing brackets, multiple groups of rotary connection components, multiple active deformation skins and heating elements, wherein multiple groups of wing brackets are arranged in sequence along a wing extension direction; adjacent wing brackets are rotatably connected through the rotary connection components; the active deformation skins are used for connecting the adjacent wing brackets and covering the rotary connection components; the active deformation skins are shape memory alloy skins; and the heating elements are arranged on the active deformation skins and can cause the temperatures of the active deformation skins to rise to deform to drive the wing brackets to rotate on the basis of the rotary connection components, and two adjacent groups of wing brackets can form a preset included angle [alpha]. Through the introduction of an intelligent material, the wing can bear loads and also can conveniently control deformation to improve the flight performance of an airplane.

The invention discloses a PTC electric heating device. The PTC electric heating device comprises a PTC electric heating pipe. A first insulation end and a first installation plate are arranged at the first end of the PTC electric heating pipe, wherein the first installation plate is used for installing the PTC electric heating pipe to an evaporator and is connected with the first installation end. A controller, a power line, a second insulation end, a second installation plate and an elastic module are arranged at the second end of the PTC electric heating pipe, wherein the power line is electrically connected with the controller, the second installation plate is connected with the second insulation plate, and the elastic module is arranged at the second insulation end. Due to the fact that the elastic module produces shape change springback, the PTC electric heating pipe is moved towards the first installation plate to be attached to the evaporator, the PTC electric heating pipe cannot slide, and a gap between the PTC electric heating pipe and a left end plate of the evaporator and a gap between the PTC electric heating pipe and a right end plate of the evaporator are eliminated. The PTC electric heating pipe is not prone to sliding, and the situation that the position of the PTC electric heating pipe is repeatedly adjusted due to hole displacement cannot occur. Thus, production and installation are facilitated, and the production efficiency is effectively improved.

A magnesium oxysulfate cement foam concrete sand stabilizing plate and a preparing method thereof are disclosed. The plate includes magnesium sulfate (MgSO4), magnesium oxide, fine sand, water and foam generated by an inorganic foaming agent or a plant foaming agent. The method includes weighing the magnesium oxide and the fine sand according to a weight ratio of 1:(1-30); fully mixing the magnesium oxide and the fine sand; fully stirring and mixing the material mixture and a magnesium sulfate solution according to a ratio; adding the foam generated by the inorganic foaming agent or the plant foaming agent into the mixture; fully stirring the mixture; feeding the obtained mixture to a plate-type mold; curing the mixture; and demolding after the mixture slurry is completely cured to obtain the plate. According to the plate, raw materials are easily available, a production process is simple, a cost is low, sand-preventing and sand stabilizing effects are good, and the plate has good popularization value and application value.

The invention provides a deformable wing device based on a quadrangular star-shaped scissors fork mechanism and a variable-length rib plate, and belongs to the field of aerospace. The problems that anexisting deformation wing is single in deformation function, only one of variable sweepback, variable area and variable span can be independently achieved, and a large surface deformation rate cannotbe guaranteed are solved. The deformable wing device comprises a quadrangular star-shaped scissors fork linkage framework, a skin, a horizontal driving mechanism and a vertical driving mechanism, a plurality of honeycomb wing ribs are mounted on the quadrangular star-shaped scissors fork linkage framework, a plurality of dimensional stringers are arranged among the plurality of honeycomb wing ribs, the skin is bonded and fixed to the upper surfaces and the lower surfaces of the multiple honeycomb wing ribs, and the horizontal driving mechanism and the vertical driving mechanism are arranged on the quadrangular star-shaped scissors fork linkage framework, and deformation of the quadrangular star-shaped scissors fork linkage framework is achieved through driving of the horizontal driving mechanism and the vertical driving mechanism. The deformable wing device is mainly used for deformation wings.

The invention belongs to the technical field of balance cars and particularly relates to a connection structure of a balance car frame. The connection structure includes a car frame body and two wheels which are arranged on both sides of a car body respectively; a controller capable of controlling the car body to stay in balance automatically is arranged in the car frame body, a hub motor is arranged in each wheel, a rotating shaft is arranged in each hub motor, and the car frame body comprises a left pedal and a right pedal; a connecting rod is arranged in the car frame body, the left side ofthe connecting rod is fixed to the right side of the left pedal, the right pedal is rotatably connected with the connecting rod, a rotating shaft of the left wheel is fixedly arranged on the left pedal, and the right wheel is fixedly arranged on the right side of the connecting rod. The connection structure of the balance car frame aims at achieving the effects that installation is convenient andsteering is flexible.

The invention discloses a roller shutter with turnover curtain cloth, comprising a housing, a left cover plate, a right cover plate, a shutter assembly, a left guide rail, a right guide rail, a base, a rotating shaft, a manual pulling device and a one-way rotating device, wherein the rotating shaft is arranged between the left cover plate and the right cover plate and inside the housing, internally provided with a tubular motor and connected with the uppermost end of the shutter assembly; the shutter assembly comprises a blind shutter curtain, a top fixed blind and a bottom beam blind, wherein two ends of the blind shutter curtain are respectively provided with a turning chain and a fixed chain, when the turning chain moves upwards or downwards relative to the fixed chain, the turning chain drives an articulated element to rotate, the articulated element is fixedly connected with a blind slat unit, and thus, blind slats are driven to rotate. The roller shutter is simple in operation and control and convenient to use.

The invention discloses a bidirectional throttle valve and relates to the technical field of throttle valves. The bidirectional throttle valve comprises a valve tube, and a first valve body and a second valve body arranged in the valve tube, wherein the valve tube is provided with a first interface and a second interface; the first valve body is provided with a first throttling channel; the second valve body is provided with a second throttling channel; and an intermediate communication channel is arranged between the first valve body and the second valve body in the valve tube. The bidirectional throttle valve is characterized in that a first diversion channel is arranged in the valve tube and between the first interface and the intermediate communication channel, a second diversion channel is arranged between the second interface and the intermediate communication channel, and the first valve body and the second valve body move synchronously in the axial direction of the valve tube. The bidirectional throttle valve can effectively realize the bidirectional flow control of the throttle valve.

A composite pallet is made of the used foam material and is composed of load-bearing surface, supporting bars, U-shaped decorative grooves, accessory of supporting bars, and protecting mesh.

The invention discloses an assembly-type ecological floating bed frame structure. Assembly is adopted during installation, each PVC thick tube and a corresponding PVC slim tube intersecting with the PVC thick tube are fixed through an installing block, and therefore producing and installation are convenient; by freely and additionally installing PVC thick tubes, PVC slim tubes and installing blocks in the middle of an ecological floating bed, and freely adjusting the distance between each PVC thick tube and the corresponding PVC slim tube, the internal area of the floating bed can be adjusted;meanwhile, by freely and additionally installing PVC thick tubes, PVC slim tubes and installing blocks on the edge of the ecological floating bed, the length and width of the whole ecological floating bed can be freely increased, and therefore expandability is high; telescopic rods are arranged below the installing blocks to be connected with fixing anchors, and inserted into mud at the bottom ofwater through the fixing anchors to be fixed, and therefore the floating bed is prevented from being washed away by water flows; meanwhile, with the stretching and retracting function of the telescopic rods, the floating bed can float vertically along with a water level when the water level changes to be kept floating on the water surface.

The invention relates to a fabric guide plate-needle plate linkage mechanism in a flat knitting machine, and its technical solution: it is installed in a machine box on the bottom side of the flat knitting machine, and comprises guide plate, guard plate, support plate, control rod, pull rod I and pull rod II and extension spring, where the guard plate is installed on the front side of the needle plate in the machine box, and the upper end of the guard plate is hinged with the lower end of the guide plate and the guide plate can rotate around a hinge axis between inclined and vertical positions, the support plate is hinged on the guard plate, two ends of the pull rod I are connected with the support plate and control rod, respectively, and two ends of the pull rod II are connected with the support plate and guard plate, respectively, two ends of the extension spring are connected with the control plate and guard plate, respectively. And its advantages: it effectively assures normal operation of the guide plate; the whole linkage mechanism is simple in structure; it has fewer parts, and low manufacturing cost.