58results about How to "Reduce extension length" patented technology

A lifting type support stand includes a foot stand, on which a drag mechanism and hanging tool moving mechanism are mounted, where two ropes configured on a sheave is used to couple the drag mechanism to hanging tool moving mechanism. The hanging tool moving mechanism can be driven to move vertically along the foot stand when the sheave is rotated. The rear side of sheave is projected with a scroll, the periphery of which is configured with an approximately tapered spiral line rope race. The rope race is surrounded with a drag rope, two ends of which are respectively coupled to the sheave and an extension spring, a reaction force of the spring is utilized to mount the hanging tool moving mechanism and display device. Whereby, a vertical position and moving distance of a display device can be adjusted and increased by moving the drag rope on the rope race.

An image-forming apparatus includes a body casing having on upper surface thereof a paper ejection tray on which a sheet of paper ejected after formation of an image is stacked; a side cover capable of opening and closing a side surface of the body casing on the downstream side in the direction of ejection of the sheet of paper so as to cover the side surface of the body casing; and an extension tray being attached to an upper portion of the side cover. The extension tray is capable of extending to the downstream side in the direction of ejection of the sheet of paper with respect to the paper ejection tray so as to support an end portion of the sheet of paper.

A slide rail assembly includes first to third rails and an engaging mechanism movably mounted on the second rail. The second rail is displaceable with respect to the first rail, and the third rail is displaceable with respect to the second rail. The three rails define a length when the second rail is displaced from a first to a second position in a first direction and the third rail, to a third position in the same direction, extending out of the second rail. Once the second rail is displaced from the second to a fourth position in a second direction, the length is reduced, and the second rail is kept at the fourth position by the engaging mechanism.

A laterally diffused metal-oxide-semiconductor device includes a substrate, a gate dielectric layer, a gate polysilicon layer, a source region, a drain region, a body region, a first drain contact plug, a source polysilicon layer, an insulating layer, and a source metal layer. The source polysilicon layer disposed on the gate dielectric layer above the drain region can serve as a field plate to enhance the breakdown voltage and to increase the drain-to-source capacitance. In addition, the first drain contact plug of the present invention can reduce the drain-to-source on-resistance and the horizontal extension length.

The invention provides a cross-flow fan blade, which comprises a fan blade axis and a plurality of blade sheets encircling the fan blade axis, wherein each blade is in an arc shape, the longitudinal sections of the first end part and the second end part of each blade are both circular arc-shaped, in the same longitudinal section, the center line of the thicknesses of each blade forms the center line of the blade, the center line of each blade comprises more than three sections of circular arcs, the connecting line between the circle center of the circular arc at the first end part of each blade and the circle center of the circular arc at the second end part of each blade is the chord length, the chord length is L, the maximum distance between the chord length and the center line is the blade height H, the distance between the projection of the blade height H on the chord length and the circle center of the circular arc at the first end part is L1, the ratio of L1 to L is smaller than or equal to 0.4, or the ratio of L1 to L is greater than or equal to 0.6. The invention also relates to an air conditioner. According to the cross-flow fan blade and the air conditioner, the shapes of the blades of the cross-flow fan blade are of structures with high front parts and low rear parts or low front parts and high rear parts, so that the moving direction of air flow along the surfaces of the blades is changed, and the size of a separation area or an attack angle area is reduced, and accordingly the loss of air volume is reduced.

The invention discloses a hidden type car television. The hidden type car television comprises a liquid crystal display, a supporting plate, a magnet ring, a sliding rail, a telescopic rod, a second groove and sheet iron. The liquid crystal display is arranged in a first groove of the supporting plate in an embedded mode. The magnet ring is arranged on the periphery of the supporting plate in a sleeving mode. The sliding rail is arranged on the top face in a car in an embedded mode. One end of the telescopic rod is slidably arranged on the sliding rail through a sliding block, and the other end of the telescopic rod is arranged on the other side wall of the supporting plate in an adapting mode. The second groove is formed by sinking upwards from the top face in the car. The supporting plate sleeved with the liquid crystal display is detachably placed in the second groove. The sheet iron is embedded in the side wall of the second groove and arranged on the periphery close to the second groove. When the car television is in use, the height and inclination degree of the car television can be adjusted according to the heights and angles of view of passengers, and when not in use, the car television can be stored and buckled to the top face in the car, so that not much space is occupied, the screen of the car television can be protected, and the hidden type car television is convenient and safe to use.

A brake assembly includes a base having two first connection parts and each first connection part has a first hole and a second hole. Two second connection parts extend from the underside of the base. Two arms are pivotably connected to the two second connection parts. A driving member has a driving part and a positioning portion. The driving part has two curved driving face formed on two ends thereof. The driving member is connected to the first hole by a rod, and a brake cable is connected to the positioning portion. The action members are respectively located in the two second holes. When the driving member is pivoted by the brake cable, the driving member pushes the action members to pivot the arms to brake the wheel. The driving member allows the force to be sent to the brake pads directly and quickly, and the brake assembly is light and compact.

The invention discloses a vertical semi-continuous casting machine crystallizer cooling device. The vertical semi-continuous casting machine crystallizer cooling device comprises an outer sleeve which sleeves a crystallizer; the upper end of the outer sleeve is connected with the crystallizer through an upper flange; the lower end of the outer sleeve is connected with the crystallizer through a lower flange; a heat exchange chamber is formed between the inner wall of the outer sleeve and the outer wall of the crystallizer; a first cooling water return chamber, a first cooling water inlet chamber and a second cooling water inlet chamber which are communicated with the outside are formed on the outer chamber from top to bottom in turn; the lower portion of the outer sleeve is provided with a bottom communication opening which is communicated with the bottom of the heat exchange chamber; the upper portion of the outer sleeve is provided with a top communication opening which is communicated with the top of the heat exchange chamber; the lower flange is provided with a water injection hole which is communicated with the second cooling water inlet chamber. According to the vertical semi-continuous casting machine crystallizer cooling device, the problems that the crystallization quality of casting products is affected due to the facts that the heat exchange area is small, the heat exchange effect is poor, and the difference of the cooling water temperature transition is large in the traditional crystallizer cooling device are solved and meanwhile the primary cooling water can be used after cooling and accordingly the cost is greatly reduced.

The invention provides a pipeline. Through the arrangement of branch pipes which communicate with a main pipe and are arranged at certain angles and provided with a plurality of second air holes, the effective extraction or injection area of the main pipe is expanded in the horizontal direction perpendicular to the extending direction of the main pipe or in the direction inclined by a certain angle relative to the horizontal direction from the area around the pipe-diameter portion in the extending direction (the vertical direction) of the main pipe in the prior art, so that the overall extraction or injection area of the pipeline is effectively enlarged, and the gas extraction or injection capacity is improved.

The invention relates to a novel inclined pin knockout structure which is suitable for a mould structure. The mould comprises a core plate which is provided with a core, a knockout plate is arranged below the core plate, wherein, the inclined pin knockout structure comprises a inclined pin boss, at least two inclined pins and a knockout part; the inclined pin boss is arranged in the core plate; the inclined pins are fixed on the inclined pin boss, and the top of each inclined pin is provided with a bending part; the knockout part is arranged between the inclined pin boss and the knockout plate, and the knockout part is connected with the inclined pin boss and the knockout plate respectively. The inclined pin knockout structure can knock products with barbs on the surface out of the mould smoothly. The structure has the advantage of simple structure and easy implementation and has good popularization value in the mould field.

A humidifier for a respiratory apparatus includes a first cover, a second cover engaged with the first cover and a partition plate. The first cover defines an air inlet. The second cover defines a chamber configured to contain at least some amount of water. A heater is configured to heat the water to generate humidified air in the chamber. The partition plate is partly sandwiched between the first cover and the second cover. The partition plate defines an air outlet. Air input via the air inlet is humidified by being mixed with the humidified air and thereafter ejected through the air outlet. The air entering via the air inlet is divided by the partition plate into a plurality of flows having different flow velocities, thereby forming a plurality of flow paths.

Disclosed herein is a novel gas permeable internal floating piston specifically designed for installation in the multiple stage air shock whereby the multiple stage air shock is covered in patent application Nos. 13/854,055 and 14/935,423. The multiple stage air shock includes a mixture of oil and gas whereby the mixture provides the shock with emulsion dampening properties. The gas permeable internal floating piston operates by separating the oil from the gas thereby improving the dampening properties of the shock. The permeability of the internal floating piston is based on a membrane that allows the gas but not the oil to pass through the structure of the internal floating piston. The mechanism of the permeability is governed by the creation of a pressure differential across the structure of the internal floating piston, the creation effected with a spring. The membrane features a slow rate of permeation thereby ensuring that the internal floating piston moves in conjunction with the shaft during the operation of the shock.

The invention provides a kinetic scroll plate driving component of a scroll compressor, the scroll compressor and an air conditioner comprising the scroll compressor. The kinetic scroll plate drivingcomponent comprises a kinetic scroll plate, a main shaft, driving motors and a sliding block; the scroll compressor comprises a shell, a static scroll plate, a support and the kinetic scroll plate driving component; the kinetic scroll plate is arranged on the support; an eccentric sliding chute is formed in a coordination part at the tail end of the main shaft; an insertion hole is formed in the sliding block; the coordination part is in running fit with the support through a first bearing; the sliding block is in sliding fit with the eccentric sliding chute; and a countershaft of the kineticscroll plate is inserted into the insertion hole and is rotatably in running fit with the sliding block. The length of the main shaft is effectively shortened by installing the eccentric sliding chuteso as to reduce deformation fundamentally; a supporting point of the main shaft and a scroll action point of the kinetic scroll plate are located at more adjacent axial positions, so that an eccentric load and flexural deflection of the main shaft are effectively reduced, and bearing wear is reduced; and the compressor has better mechanical property and is more reliable to use.

Disclosed herein is a single shock body equipped with the gas permeable internal floating piston. The gas permeable internal floating piston was specifically designed for installation in the multiple stage air shock, the gas permeable internal floating piston being disclosed in the parent application. The gas permeable internal floating piston automatically separates the oil from the gas within the shock body thereby significantly reducing the complexity and cost of manufacturing a shock absorber with the gas permeable internal floating piston. Also, separation is maintained during the operation of the shock throughout the shock's lifetime. The gas permeable internal floating piston can operate with oils derived from either petroleum or synthetic base stocks, additives, and various gases including dry air, nitrogen, oxygen, carbon monoxide, carbon dioxide, helium, neon, and argon.

The invention relates to a scanning type automatic cashiering method. According to the method, a scanning type automatic cashiering system is used for automatic cashiering. The system comprises manualoperation equipment which is used for receiving operation of a cashier, and transmitting a scanning start signal or a scanning stop signal according to the operation of the cashier; a shopping cart scanning equipment arranged over a cashiering desk and used for starting image scanning on a passing shopping cart when receiving the scanning starting signal so as to obtain and output a correspondingshopping cart image; a smoothness recognition equipment used for carrying out balance degree recognition on the shopping cart image so as to obtain a real-time balance degree corresponding to the shopping cart image; and commodity analysis equipment used for analyzing the types and the quantity of the commodities in the processed image so as to obtain the quantity corresponding to each commodityin the passing shopping carts, and accumulating the sales volume of the shopping cart based on the quantity corresponding to each commodity in the passing shopping cart.

The invention discloses a low-frequency underwater acoustic communication equalization processing method based on a receiving array, solves the problems that a receiving processing system is complicated and the demodulation performance is influenced due to the fact that the length of an existing equalizer for multi-array element joint equalization processing is too long, and belongs to the technical field of underwater acoustic communication. The method comprises the following steps: receiving a frequency domain sound pressure signal through a full-aperture vertical array to calculate a vertical mode function matrix psi of a normal wave mode in a sound field; obtaining a modal filter according to the [psi], performing filtering on the received signal matrix p, and achieving modal separation, wherein the separated modal matrix is as follows: a received signal ym(k) corresponding to the mth-order modal in the matrix is obtained, and under the condition of the high received signal-to-noise ratio, the received signal ym(k) is demodulated through a single-channel self-adaptive decision feedback equalization processing method; and demodulating the received signal ym(k) by using a multi-mode joint decision feedback equalization processing method under the condition of low received signal-to-noise ratio.

The invention belongs to the field of semiconductor devices, and provides a non-junction dual-grid line tunneling field-effect transistor. The non-junction dual-grid line tunneling field-effect transistor is used for improving an on-state current of the non-junction dual-grid line tunneling field-effect transistor. In the tunneling field-effect transistor, P-type doping characteristic source region and an N-type doping characteristic drain region are formed in a non-doped or light-doped channel by electrical doping according to difference between a work function of source region metal and drain region metal and semiconductor electron affinity of a channel region, a vertical symmetric dual-grid structure of a traditional non-junction dual-grid tunneling transistor is changed, so that top-layer metal grid and bottom-layer metal grid are provided with an asymmetric dual-grid structure with length difference, carrier line tunneling is introduced to the non-junction dual-grid tunneling field-effect transistor, and line tunneling is taken as main; and meanwhile, by extending extension length of the top-layer metal grid, the length difference between the top-layer metal grid and the bottom-layer metal grid is increased by shortening the length of the bottom-layer metal grid, the line tunneling area of the transistor is expanded, the carrier tunneling probability is improved, and the on-state current of the device is effectively improved.

The invention relates to a siding rail assembly. The siding rail assembly comprises a first rail, a second rail, a third rail and a latch mechanism. The second rail can move relative to the first rail, and the third rail can move relative to the second rail. The latch mechanism is movably installed on the second rail. When the second rail moves relative to the first rail towards a first direction to a second position from a first position, and the third rail moves relative to the second rail towards the first direction to a third position beyond the second rail, a first length is defined by the first rail, the second rail and the third rail. When the second rail moves towards a second direction to a fourth position from the second position, the first length can be shortened to a second length, and the second rail is made to be located at the fourth position relative to the first rail by means of the latch mechanism. The invention further provides an operating method of the sliding rail assembly.