30results about How to "Not distorted" patented technology

The invention discloses a clamping mechanism of a testing device for the direct tensile strength of a fragile material. The clamping mechanism comprises an upper clamping component and a lower clamping component, wherein the upper clamping component comprises an upper wedge-shaped clamp (2) which is hung on an upper cylindrical pin (4) of an upper cylinder (5) through an upper circular ring (3), the upper cylindrical pin (4) is mounted on a pin hole of the upper cylinder (5), and the upper cylinder (5) is connected with an upper pulling rod (11); the lower clamping component comprises a lower wedge-shaped clamp (6) which is connected to a lower cylindrical pin (8) of a lower cylinder (9) through a lower circular ring (7), the lower cylindrical pin (8) is mounted on a pin hole of the lower cylinder (9), and the lower cylinder (9) is connected with a lower pulling rod (10) of a testing machine. The clamping mechanism has the advantages that a test piece is prevented from being bent and distorted in the direct tensile process of the fragile material, and the clamping of the wedge-shaped clamps to the test piece is improved; the clamping mechanism is applicable to indoor temperature testing, high temperature testing and low temperature temperature.

The invention discloses a wafer fixing device and a wafer fixing method, which are used for solving the problems of twisted crystal grain arrangement, poor wafer flatness and poor space usage rate in the prior art. The wafer fixing device comprises a vacuum source, an adsorption device and a wafer fixing ring, wherein a first through hole is formed in the adsorption device, and the first through hole is connected to the vacuum source; the wafer fixing ring is arranged on the adsorption device and is fixed on the adsorption device through a clamping device; and the wafer fixing ring comprises an inner ring, an outer ring and an annular base, wherein the inner ring and the outer ring are formed on the annular base, an adsorption space is formed between the inner ring and the outer ring, and the annular base comprises a second through hole which is used for connecting the first through hole and the adsorption space. The wafer fixing method comprises the following steps: preparing the adsorption device; putting the wafer fixing ring on the adsorption device, and then, clamping the wafer fixing ring and the adsorption device through the clamping device; forming a vacuum state in the wafer fixing ring and the adsorption device; and putting a blue film pasted with a wafer on the wafer fixing ring.

The invention discloses a manufacturing method of a molding type self-lubricating knuckle bearing. The manufacturing method comprises the following steps that an outer ring semi-finished product and an inner ring are machined, wherein the outer ring semi-finished product is provided with a through hole; an auxiliary gasket layer is placed in the through hole, the inner ring is placed in the through hole, the auxiliary gasket layer is located between the inner ring and the outer ring semi-finished product, the outer ring semi-finished product is extruded, and the extruded auxiliary gasket layeris filled with a cavity formed between the inner ring and the outer ring semi-finished product; an outer rotative surface of outer ring semi-finished product is machined, two ends of the outer ring semi-finished product are machined to remove margin at the two ends of the outer ring semi-finished product, the auxiliary gasket layer is removed, and a lubricating material is a cavity filled betweenan outer ring and the inner ring. The manufacturing method has the following advantages that the auxiliary gasket layer is introduced, the deformation effect of the outer ring is supported in the extrusion process, so that the shape of extrusion forming shape is accurate, the size precision is high, the outer ring ellipse is small after extrusion, twisting is avoided, the gasket layer can eliminate the gap between the inner ring and the outer ring after extruded, and the coaxiality and the cavity symmetry degree of the inner ring and the outer ring in the extruded machining are easy to control, so that the radial sealing degree and the circumferential sealing degree of the bearing can be accurately controlled.

The invention discloses a bladeless turbine engine. The bladeless turbine engine comprises a cylinder, a rotating shaft, a plurality of empty chamber disk bodies, a plurality of tie bars, a plurality of heat pipes, a steam inlet pipe, a spray pipe group, a separation plate and a steam exhaust pipe. A certain pressure and temperature of viscous fluid spirally and centripetally flows in the cylinder from outside to inside along the circumferential direction after being expanded and accelerated through a spray nozzle and the plurality of empty chamber disk bodies and the rotating shaft are driven to rotate and do work together under the action of shear force of the fluid in a boundary layer. The plurality of different diameters of circular ring tie bars are arranged in every empty chamber disk body for reinforcement, a filled gas cooling medium is used for absorbing the heat dissipation capacity of every empty chamber disk body, and the heat is transferred into an inner chamber of a hollow drum of the rotating shaft from an inner chamber of every empty chamber disk body through the heat pipes to be absorbed through the low temperature exhaust steam eventually. According to the bladeless turbine engine, the energy conversion efficiency is high, the structure is firm and durable, the tensile strength and distortion strength are high, the deformation caused by overhearing is effectively prevented, the unit power is large, and the future application process of the bladeless turbine engine is greatly promoted.

A thermal printhead (A1) includes a substrate (1), and a plurality of heating portions (2) aligned on the substrate in a primary scanning direction (X) . A plurality of electrodes (31, 32, 33) are connected to the heating portions (2). Each of the heating portions (2) has a width in the primary scanning direction (X) which is smaller than that of each of the electrodes (31, 32, 33). Each of the electrodes (31, 32, 33) includes a tapered portion (31C, 32C, 33C) having a width which reduces as progressing toward a corresponding one of the heating portions 2.

The invention belongs to hydraulic jacking systems, and relates to a hydraulic jacking system of a transporting girder vehicle, which comprises four hydraulic jacking cylinders loaded with displacement sensors, four electrical control proportioning valves, four ball valves, an operating handle, a controller and a warner, wherein the four hydraulic jacking cylinders are divided into two groups, that is, a front group and a rear group; rod chambers of the two hydraulic jacking cylinders in each group are connected by a hydraulic pipeline; one of the ball valves is arranged in the middle of the pipeline; likewise, rodless chambers of the two hydraulic jacking cylinders in the group are connected; when the four ball valves in the front group and the rear group are closed, the hydraulic jacking cylinders form four points for supporting a box girder; when the two ball valves in one group are closed, and the two ball valves in the other group are opened, the hydraulic jacking cylinders form four points acting on the box girder and three points for supporting the box girder so as to ensure that the box girder is not twisted during the lifting and transporting processes; during the process of the lifting of the box girder, the displacement sensors monitor the lifting heights of the cylinders in a real-time manner; and when the lifting speed of the some cylinder is too high, the controller gives out a command to the control valve to a proportional control valve to automatically adjust the lifting speed of the cylinders and further ensure that the box girder is not inclined during the process of lifting.

The invention discloses an oral cleaning medical care device and belongs to a medical device. The oral cleaning medical care device has good visibility, is easy to operate and has high safety. The oral cleaning medical care device comprises a handle, a brush roller and a motor. A support shaft (5), the motor (9) and a syringe (14) are arranged in the handle (10). A shaft sleeve (6) is mounted on the support shaft (5). The motor (9) drives the shaft sleeve (6) to rotate. A piston rod of the syringe (14) is tightened by a spring (13). The brush roller (1) has a jacket-like structure. The jacketis provided with water outlet holes. The right end of the jacket is provided with a ring groove. The ring groove is communicated with a water chamber (2). The brush roller (1) is fixed to the supportshaft (5). The ring groove is blocked through the handle (10) so that a water injection chamber (4) is formed. The water injection chamber (4) is communicated with the syringe (14) through a water passage (15). The oral cleaning medical care device has a simple structure, is easy to operate, has good cleaning effects and is used for oral cleaning medical care.

The invention discloses a humidity-adjusting dryer for drying layered soft products, which is easy to adjust temperature and humidity. It is used for drying layered soft products. room, transmission room, air inlet duct and air return duct connected with the adjustment room and transmission room, the adjustment room has a heating device and a blower, and the adjustment room is also equipped with a cooling and dehumidification device and a temperature detector that cooperate with each other , a humidity detector, a spray gun for increasing the humidity of the hot air in the conditioning unit, and a computer-controlled real-time controller for controlling the heating device, refrigeration and dehumidification device, temperature detector, humidity detector and spray gun.

The invention relates to a urea heating liquid return pipe. Rapid inserting connectors are arranged at the two ends of a urea liquid return pipe body correspondingly. A corrugated pipe is arranged outside the urea liquid return pipe body. A heating wire or a heating belt is arranged in the urea liquid return pipe body and is arranged at the center position through the rapid inserting connectors atthe two ends in the urea liquid return pipe body, and a lead-out plug arranged on the side wall of one rapid inserting connector is used for wire connection. A temperature sensor is further arrangedin the urea liquid return pipe body, and the lead-out plug is used for wire connection. The heating wire or the heating belt in the urea liquid return pipe body is cured in the rapid inserting connectors at the two ends. The lead-out plug is also cured on the side wall of one rapid inserting connector. The heating wire or the heating belt conducts heating in the urea liquid return pipe body, a heating element is planted in a middle part in the pipe, plastics at the two ends are located at the center position in the pipe, and when the urea solution enters a pipe body, the urea solution flows ata constant speed, the purpose of constant-speed heating is achieved; and it is guaranteed that heat conductive heating power losses are avoided.

The invention relates to a sealed urea heating pipe. Quick inserting joints are arranged at the two ends of a urea liquid return pipe correspondingly. A corrugated pipe is arranged at the exterior ofthe urea liquid return pipe. The urea liquid return pipe is externally provided with a heating wire or a heating band which covers the urea liquid return pipe and cures the quick inserting joints at the two ends. An inserting joint connecting wire is led out through the side wall arranged on each quick inserting joint. The quick inserting joints and the urea liquid return pipe are subjected to one-time plastic sealing and curing. A led inserting joint is further cured on the side wall of the corresponding quick inserting joint, and the led inserting joint and the corresponding quick insertingjoint form a whole. The urea liquid return pipe is internally provided with the heating wire or the heating band which is arranged in the center through the quick inserting joins at the two ends in the urea liquid return pipe. The inserting joint connecting wires are led out through the side walls arranged on the quick inserting joints. The heating wire or the heating band is cured in the quick inserting joins at the two ends in the urea liquid return pipe. According to the sealed urea heating pipe, the whole is formed, beautiful appearance and neatness are achieved, water can never enter theurea pipe, and even if the urea pipe soaked in the water, the water cannot enter the urea pipe, so that it is ensured that the resistance value cannot be increased and high temperature, even an ignition phenomenon, cannot be produced.

The invention discloses a microcomputer intelligent control dryer used for drying a layered flexible product. The microcomputer intelligent control dryer comprises at least one adjusting unit; each adjusting unit comprises an adjusting chamber, a transmission chamber, an air inlet channel and an air return channel, the air inlet channel and the air return channel communicate with the adjusting chamber and the transmission chamber; each adjusting chamber is provided with a heating device and an air blower; and a refrigerating and dehumidifying device, a temperature detector, a humidity detector, a spraying gun used for increasing the humidity of hot air in the adjusting unit and a controller used for controlling the heating device, the refrigerating and dehumidifying device, the temperaturedetector, the humidity detector and the spraying gun to achieve full-computer real-time control are arranged in each adjusting chamber, and the refrigerating and dehumidifying device, the temperaturedetector, the humidity detector, the spraying gun and the controller in each adjusting chamber cooperate with one another.

The invention discloses a humidity adjusting drying machine adjusting temperature and humidity easily. The humidity adjusting drying machine is used for drying lamellar soft products and comprises at least one adjusting unit. Each adjusting unit comprises an adjusting chamber, a transmission chamber, an air inlet channel and an air return channel, wherein the air inlet channel and the air return channel communicate with the adjusting chamber and the transmission chamber, the adjusting chamber is provided with a heating device and an air blower and further provided with a refrigeration dehumidifying device, a hygrosensor, a humidity detector, a spraying gun and a controller, the refrigeration dehumidifying device, the hygrosensor and the humidity detector are matched with one another, the spraying gun is used for increasing the humidity of hot air in the adjusting unit, and the controller is used for controlling the heating device, the refrigeration dehumidifying device, the hygrosensor, the humidity detector and the spraying gun in real time in a full-computer manner.

The invention provides a fixing device of an embedded steel edge rubber water stop for a construction joint part of an underground structure. The device comprises the embedded steel edge rubber waterstop, a fixing screw and a fixing nut. Fixing limit holes are vertically aligned in the steel edges of the two sides of the embedded steel edge rubber water stop and formed with longitudinal intervalsbeing not greater than 600 mm. The invention further provides a fixing method for the fixing device of the steel edge rubber water stop for the underground structure. The fixing screw passes throughthe fixing limit holes, the two sides of the fixing screw are in adaptive connection with the nut, one end of the screw is fixedly connected with the steel edge rubber water stop, the other end of thescrew is welded to structural steel bars of a corresponding part, when one end of the fixing screw cannot find structural steel bars of a corresponding part, a transverse bar can be accessorily welded to one end of the screw, then the two ends of the transverse bar are welded to structural steel bars of a corresponding part. The situation that distortion and dislocation of the rubber water stop affects the strength and effect of water stopping in the casting and compacting of concrete is avoided, manpower and material resources are saved, and the construction efficiency is improved.

The invention provides a self-locking supporting device compatible with a wiring function. The self-locking supporting device comprises a box cover, a box body, a connecting main body and an elastic self-locking rod mechanism, a hollow wiring channel penetrating through the upper end and the lower end of the connecting main body is arranged on the connecting main body, the upper end of the connecting main body is connected with the box cover, and the upper end and the lower end of the connecting main body are in sliding fit with the box body. A self-locking hole is formed on the box body, andthe elastic self-locking rod mechanism is arranged on the box body. The beneficial effects of the self-locking supporting device are that the self-locking supporting device effectively supports the box cover on the basis of being compatible with the wiring function; on one hand, the safe and firm problem that after the upper cover of a portable box cover type device is opened, the self-locking supporting device topples easily due to touch or topples due to other special conditions, is solved; on the other hand, the problems of partial cable connection, safety and concealment of the upper coverdevice after the upper cover of the portable box cover type device is opened, are solved; and various cables connected to the upper cover of the box body from the lower frame of the box body are protected from being extruded to be broken or twisted.