33results about How to "Expand freely" patented technology

Using the filter auxiliary agent separated by backwashing from a filter element repeatedly and effectively, the consumption amount of a filter auxiliary agent and the generation of industrial waste can be suppressed. In a filter auxiliary agent pre-coat circuit, a filter auxiliary agent in a pre-coat tank is attached and stacked on a filter element in a filter case, and a filter auxiliary agent layer is formed. In a filter circuit, the filter auxiliary agent layer of the filter element removes sludge in the filter treatment liquid in a main tank. A backwashing circuit breaks down the filter auxiliary agent layer and a sludge layer, separates the filter auxiliary agent layer and the sludge layer by backwashing from the filter element, and circulates to the pre-coat tank. After repeating these steps a plurality of times, the filter auxiliary agent and sludge separated by backwashing are taken out to the exterior.

The invention discloses a flanging opening and closing device of a case unpacker. The flanging opening and closing device is characterized in that a power device, a cylinder with a vacuum suction disk, and a return-preventing baffle plate are arranged on a stand body, two guide rail floating rod turning mechanisms are arranged on the same power device, are connected with pusher dogs, and are electrically connected with the return-preventing baffle plate. The flanging opening and closing device has the characteristics of reasonable structure, simple action, convenience in operation, good benefit, low cost, convenience in control, reliability and stability, and the like. Particularly, due to adoption of a mode of simultaneously using a sucker and the pusher dogs, the straight line movement direction is changed by using the guide rail floating rod turning mechanisms, so that two small flangings can be simultaneously unfolded under the condition of one power output, the effects of stability, reliability, large-openness unfolding and the like are realized; and the flange opening and closing device has the advantages of small size, simple structure, and flanging unfolding in place. The flanging opening and closing device fundamentally solves the difficulty in opening the flangings of a case, especially the small flanging, and is an ideal special matching device for opening or closing the flanging of various cases such as cartons and corrugated containers.

The invention discloses a device for a control surface unfolding wind tunnel test of a free flight model, which comprises a flexible head, a flexible body, a folding rudder and an unfolding mechanism, wherein the unfolding mechanism comprises a push rod which is equipped with a round boss on the rear section, a front nut, a rear nut, a big spring and a small spring, a front end blind hole, a rear end blind hole and a middle through hole communicated with the two blind holes are disposed inside the flexible body, an installation groove used to install the folding rudder and a spindle installation hole are disposed in an flexible body wall of the rear end blind hole, the push rod passes through the middle through hole, the big spring is sleeved into the push rod from the front end and installed in the front end blind hole and then limited by the front nut and the bottom wall of the front blind hole, the small spring is sleeved into the push rod from the rear end and fixed on the round boss, a rudder plate of the folding rudder is installed in the installation groove by a spindle, the rear nut is connected on the push rod by threads on the rear side of the folding rudder, a chamfer is disposed on the front end of the rear nut, the top end of the chamber is contacted with a coordination face on the rear end of the folding rudder when the folding rubber is folded, and the flexible head is installed on the front end of the flexible body after installation of the unfolding mechanism. The device is simple in processing and convenient in installation.

The invention discloses a photovoltaic shading screen. A plurality of parallel-connected photovoltaic screens which can be stretched and folded are connected between an upper slide rail and a lower slide rail. Upper and lower ends of each photovoltaic plate are provided with parallelogram link mechanisms which are mutually and successively connected through connection plates. Two short rods on the same connection plate are connected through one pair of engaged gears. The connection plate located on an outer side drives one pair of reduction gears through one rotation shaft. In all the parallelogram link mechanisms, the connection plates arranged at intervals are provided with slide blocks respectively. The upper slide rail and the lower slide rail, which are located at one output side of the reduction gears, carry out abutting joint with rotatable slide rails. The slide block located at a lower end of the photovoltaic screen in each parallelogram link mechanism, the lower slide rail and the rotatable slide rail which carries out abutting joint with the lower slide rail are cooperated. The other end of the rotatable slide rail which carries out abutting joint with the lower slide rail is connected to an output shaft of a second servo motor. The shading screen of the invention can be used for a glass light transmission space of a building and an application space of photovoltaic power generation is widened.

The invention discloses a combined wooden door capable of being dismounted and mounted. The problems that in the prior art, a wooden door is prone to being deformed and warped in the dismounting and mounting process, the paint faces of transverse wood and door edges are cracked, the paint faces of vertical square columns and the transverse wood are cracked, and the paint faces of a core plate and four frames are cracked are solved. The combined wooden door comprises a core plate, door edges, transverse wood and vertical square columns, the core plate is arranged in the middle, the door edges are arranged on the two sides of the core plate, the transverse wood is arranged at the two ends of the core plate, the door edges, the transverse wood, the vertical square columns and the core plate are formed by fastening concave-convex grooves and dowels with hammer screws, natural clearances are reserved when the materials are connected, the core plate, the door edges, the transverse wood and the vertical square columns are respectively sprayed with paint, the materials have certain space to expand and contract, and plates are prevented from being cracked or deformed and the like.

The invention discloses a ground radar antenna reflecting plate, which comprises a reflecting plate main body, wherein the reflecting plate main body is composed of a left block and a right block, theupper end of the left block is provided with a left hinge plate at the right side edge position, the upper end of the right block is provided with a right hinge plate at the left side edge position,and the upper ends of the left hinge plate and right hinge plate are provided with a limit plate. In the invention, the reflecting plate adopts an automatic folding technology, requirements of maneuvering performance indexes of radar complete vehicle are met, the unfolding and disassembling speed is high, the operation is convenient, the volume is compact after the disassembly, the transportationis facilitated, and the stability of the reflecting plate at the transportation state can be improved. Meanwhile, the interference generated between a radiation rod and other structural members, whichaffects the use, in the processing unfolding and folding process of the reflecting plate is prevented, the unfolding and folding between the left block and the right block on the reflecting plate adopts a movement mode with degrees of freedom, the influences of gravity and external wind load can be overcome, and the left block and the right block are synchronously folded and unfolded along with aleft connecting rod and a right connecting rod.

The invention discloses a dumper with a canopy cloth cover and relates to the technical field of manufacturing of dumpers. The dumper with the canopy cloth cover comprises a dumper compartment, canopy rods used for supporting a canopy cloth and guide rails. The canopy rods are connected with a motor in a transmission manner through a transmission device. The transmission device comprises a loop-locked chain, a driving chain wheel and multiple limiting chain wheels, wherein a wheel shaft of the driving chain wheel is connected with an output shaft of the motor. The guide rails are square pipes. The bottoms of the guide rails are provided with sliding grooves. A protective pipe is arranged below the guide rails in the length direction. Upper rings of the chain penetrate the guide rails, and lower rings penetrate the protective pipe. The lower end of the last canopy rod located close to the tail of the dumper compartment is connected with a supporting frame. One end of the supporting frame is bent and then inserted into the guide rails through the sliding grooves to be fixedly connected with the chain, and the lower ends of the other canopy rods are all connected with connecting rods arranged besides the outer sides of the guide rails. The connecting rods are connected with an upper rolling wheel group rolling on the inner bottom faces of the guide rails. The extending-in end of the supporting frame is connected with a drive wheel set. The dumper with the canopy cloth cover solves the problems that an existing canopy cloth cover system of a dumper is short in service life, and movement of canopy rods is prone to impediment.

A carpet for decorating floor or wall is braided with wooden material in conjunction of bamboo, bast, herb, cotton, or papper. Its making technology is also disclosed. Its advantages are high flexibility, light weight, smooth surface and long service life.

A trapezoidal superheater is arranged above an inclined evaporator and on the top of a movable bed. The device comprises a trapezoidal-structure superheater pipe bundle arranged in a waste heat recovery device, a superheater upper collection box and a superheater lower collection box, wherein the superheater upper collection box and the superheater lower collection box are arranged outside the waste heat recovery device; the superheater upper collection box is connected with a temperature lowering device; and the superheater lower collection box is connected with a steam pocket. The trapezoidal superheater is matched with the inclined evaporator, has the beneficial effects of guaranteeing that materials flow through uniformly, improving the heat efficiency of the waste heat recovery device and the like, and can expand freely, and stress is optimized.

The invention discloses a power line carrier communication LED light source intelligent drive device, which mainly comprises a power supply conversion component, a lamp bank control drive component, a mcu central control component and a power line carrier communication component. The power supply conversion component is connected with a mains alternating current through a power line. The lamp bank control drive component mainly comprises a row controller, a temperature sensor and a column controller. The row controller is connected with the mcu central control component through a second serial port, and receives the address and switch information from the mcu central control component. The column controller is connected with the mcu central control component through a third serial port for realizing the serial port multi-computer communication. The mcu central control component is connected with the power line carrier communication component through a first serial port. A fourth serial port of the mcu central control component is connected with the power supply conversion component. The power line carrier communication module is connected with the power line through a power line coupling module.

The invention discloses a warmer which comprises a warmer body (1). The warmer is characterized in that a movable hanger (12) is arranged on the top surface of a shell (11) of the warmer body (1); the movable hanger (12) comprises a coiled steel wire (121) and two buckles (122); hooks (1211) are symmetrically arranged at the two ends of the coiled steel wire (121); each buckle (122) comprises a pressing plate (1222) and two screws (1221) symmetrically arranged on the two sides of the pressing plate (1222); the coiled steel wire (121) is installed on the shell (11) of the warmer body (1) through the two buckles (122). The warmer is simple in structure, convenient to hang, free to fold and unfold, small in occupied space, low in cost, safe and reliable.

The invention discloses an extending-type vehicle-mounted mobile 4D cinema system. The 4D cinema system comprises a container and an extending case, the interior of the container mainly comprises two spaces, the first space serves as a projection area, and the second space serves as a working area of a cinema and a rest area of working staff; one side of the container is provided with an up-and-over door, and the up-and-over door is connected with the bottom face of the container after being turned down and used for containing the expanding case. According to the extending-type vehicle-mounted mobile 4D cinema system, folding and extending of a projection room are flexible, the projection requirement of a 4D cinema can be met, and the 4D cinema system accords with the highway transportation standard.

The present invention provides a flexible thin film solar cell pavement device or a stratospheric airship and a method thereof. The device comprises a flexible thin film solar cell, a pair of short guide rails, a pair of long guide rails, a pulling rope and snapping mechanisms configured to control automatic separation and connection of the pair of short guide rails and the flexible thin film solar cell. The flexible thin film solar cell is in the W-shaped folding mode, wherein the three edges of the lower side of the W-shaped flexible thin film solar cell are movably connected with the pair of long guide rails through the two snapping mechanisms, and the two edges of the upper side of the W-shaped flexible thin film solar cell are respectively movably connected with the pair of the short guide rails through the two snapping mechanisms; and the pulling rope is connected on the flexible thin film solar cell. The pavement device can effectively ensure that the flexible thin film solar cell can be freely unfolded or folded after the stratospheric airship rises to the upper air. Besides, the pavement method can realize the reutilization of the flexible thin film solar cell for the stratospheric airship and has high reliability.