33results about How to "Reduce production accuracy" patented technology

An epilating device to remove hair, including a frame including a power source frame, a reduction gear system frame, and a base, a power source supported in the power source frame to provide power to the hair removing operation, a reduction gear system supported in the reduction gear frame to transfer power from the power source to the base, and an epilating unit supported by the base. The epilating unit includes a plurality of epilators tightly aligned in a column along a curved shaft, each epilator having a set of tweezers disposed with respective tweezing ends radially extending to be in line with an outer wall of the column, to rotate about the curved shaft according to the power transferred by the reduction gear system. A curve in the curved shaft induces the tweezers to close when the tweezers pass along the outside of the curve during the rotation.

The invention provides a light steel assembly type composite wall board, a light steel framework, a manufacturing method and an installing method thereof. An outer side frame of the light steel framework uses M-shaped steel; the inside uses C-shaped steel; the outer side frame is connected by C-shaped connecting elements through tapping screws; the vertical and horizontal bearing force is obviously improved; the anti-shearing and load bearing effects are good; a sandwich heat simulation layer is filled into the light steel framework; the heat simulation and light steel framework deformation limitation effects are achieved; the outer maintenance plate is attached to the outer side of the light steel framework; a heat insulation layer is arranged between the outer maintenance plate and the light steel framework; the outer maintenance plate and the light steel framework are connected through tapping screws; the horizontal anti-shearing capability, anti-cracking and anti-impacting performance of the wall body are further improved; the factory wet operation is reduced; the cold and heat bridge influence is reduced; the wall board and the main board are fixed through turnbuckles and sleeves; the connection is simple and reliable. The forming components of the composite wall board have the advantages that the types are few; the dead weight is light; steel consumption is low; heat insulation and sound isolation effects are achieved; the assembled degree is high; the fast full prefabricated assembled construction can be realized; the cost is low; the light steel assembly type composite wall board is applicable to low and multi-storey building load bearing wall systems.

The invention belongs to the field of hospital delivery windows, and particularly relates to a delivery window achieving mechanical interlocking. The delivery window comprises a cabinet, and singly-opened doors are hinged to the front face and the back face of the cabinet; the rotating central lines of the two singly-opened doors are located on the same side, the inner side face of the cabinet is provided with a U-shaped groove, and the two groove walls of the U-shaped groove are rotatably connected with first connecting rods and second connecting rods; the two ends of each first connecting rod are the press tongue end and the first hinge end, and each first fixing shaft is sleeved with a torsion spring; the two ends of each second connecting rod are the second hinge end and the latch hook end, second fixing shafts are located between the latch hook ends and the second hinge ends, and the second hinge ends are hinged to the first hinge ends; each singly-opened door is provided with a spring bolt and a lock opening groove used for being connected with the latch hook ends in a clamped mode. The delivery window has the advantages that a mechanical interlocking mechanism is completely adopted, no electric interlocking device is arranged, the reliability is high, the delivery window cannot be affected by the temperature and the environment, interlocking failure of the two doors cannot be caused, mechanical delivery is flexible, and the using stability is good; the structure is simple, the cost is reduced, and the delivery window does not need to be driven by a power supply.

The invention discloses a dual-frequency microstrip antenna applied to a wireless capsule?endoscope. The microstrip antenna is attached to the outer wall of the capsule of the wireless capsule?endoscope. The dual-frequency microstrip antenna applied to the wireless capsule?endoscope is characterized in that the microstrip antenna comprises a feeder terminal, an outer loop antenna part and an inner loop antenna part, wherein the feeder terminal serves as the input end of the microstrip antenna; the outer loop antenna part and the inner loop antenna part are electrically connected with the feeder terminal; the length of the outer loop antenna part is corresponding to the full wavelength of the center frequency of a first desired frequency band; the length of the inner loop antenna part is corresponding to the full wavelength of the center frequency of a second desired frequency band; the inner loop antenna part is embedded inside the outer loop antenna part; and the center frequencies of the first desired frequency band and the second desired frequency band are no more than 1 Ghz. The antenna is a wall-attaching antenna attached to the outer wall of the capsule, the working frequency is lower than 1Ghz, an ultra?bandwidth is provided, the size is small, and the antenna is suitable to work inside the small intestine of a human body.

A reversible seat belt tensioner includes an electric motor (2), a belt shaft (1) drivable in the belt winding direction by the electric motor (2) via a drive wheel (10), and a drive shaft (9) transmitting the rotational movement of the electric motor (2) to the drive wheel (10). The drive shaft (9) is connected to at least one of the drive wheel (10) and the electric motor (2) via a helical gear unit. The use of a helical gear unit provides the advantage that the rotational axes of the meshing components can be arranged at angles other than 90 degrees with respect to each other because the components in the helical gear units only come into punctiform contact.

A reversible seat belt tensioner includes an electric motor (2), a belt shaft (1) drivable in the belt winding direction by the electric motor (2) via a drive wheel (10), and a drive shaft (9) transmitting the rotational movement of the electric motor (2) to the drive wheel (10). The drive shaft (9) is connected to at least one of the drive wheel (10) and the electric motor (2) via a helical gear unit. The use of a helical gear unit provides the advantage that the rotational axes of the meshing components can be arranged at angles other than 90 degrees with respect to each other because the components in the helical gear units only come into punctiform contact.

The invention provides a T-shaped light-weight steel frame, a T-shaped light-weight steel assembling type compound wall plate and an installation method thereof. The T-shaped light-weight steel frame is used as a connection part of a wall body corner of an assembling type room in a connecting process, and connection construction and structure problems are solved very well. The T-shaped light-weight steel frame comprises a first framework and a second framework, which are vertical to each other; an outer edge frame is made of M-shaped steel and the interior is made of C-shaped steel; the outer edge frame is connected by a C-shaped connection part through a self-tapping screw; the wall plate is filled into the light-weight steel frame through a sandwiched heat insulation layer and is used for keeping heat and limiting the deformation of the light-weight steel frame; horizontal anti-shearing, anti-cracking and anti-impact performances of the wall body are improved through the light-weight steel frame and an external maintenance plate; vertical connection between the wall body and a main plate is realized through a turn buckle of the outer edge frame of the light-weight steel frame and a sleeve, so that the wall bodies of the upper and lower layers are connected to form a whole body, and the connection reliability of the wall body and the main plate is enhanced. The T-shaped light-weight steel frame is high in assembling degree, is suitable for industrial production, and integrates heat insulation and structure; the connection structure is safe and reliable, is easy to construct, mount and replace and is relatively low in cost.

The invention discloses a dual-frequency microstrip antenna applied to a wireless capsule endoscope. The dual-frequency microstrip antenna is attached to the capsule outer wall of the wireless capsule endoscope. The dual-frequency microstrip antenna of the wireless capsule endoscope is characterized in that a feeder line end, an outer hollow-square-shaped antenna part and an inner hollow-square-shaped antenna part are included, and the two antenna parts are electrically connected with the feeder line end. The length of the outer hollow-square-shaped antenna part corresponds to the full wave length of the center frequency of a first expectation frequency band, and the length of the inner hollow-square-shaped antenna part corresponds to the full wave length of the center frequency of a second expectation frequency band. The inner hollow-square-shaped antenna part is embedded in the outer hollow-square-shaped antenna part, and the center frequency of the first expectation frequency band and the center frequency of the second expectation frequency band are both smaller than and equal to 1 GHz. A third antenna part is embedded in the inner hollow-square-shaped antenna part, and the third antenna part is provided with a plurality of sets of hollow-square-shaped attaching pieces which are electrically connected with the inner hollow-square-shaped antenna part and is used for improving the matching impedance of the feeder line end. The dual-frequency microstrip antenna is a capsule outer wall attaching antenna, the working frequency is lower than 1 GHz, the advantages of ultra bandwidths and small sizes are achieved, and the dual-frequency microstrip antenna is suitable for working in the small intestine of a human body.

An actuating device comprising an actuating element that is moved by a ball stud relative to a base comprising a ball socket. The actuating element can move relative to the base, within at least one pivot plane, between at least two shift positions. At least one recess of the ball socket has an elastic surface area which is flexible in the direction along the radius of the ball socket. The flexible elastic surface area has a centrally arranged pressure contact element, which bears against the joint ball. In a neutral position of the elastic surface area, the contact surface of the pressure contact element is at a distance away from the mid-point of the ball socket which is smaller than the radius of the joint ball, such that it possible to produce actuating devices which are robust in operation and free from play.

The present invention relates to a feedstock for 3D printing, a preparation method and an application thereof. The feedstock is polymer binder-coated metal powder, being in a linear shape. After being printed into a green body with a preset shape via a 3D printer, the linear feedstock is sequentially degreased and sintered, so that a metal product with a complex structure and high accuracy can be obtained. Compared with the prior art, the linear feedstock is applied to 3D printing, so that waste of raw materials can be avoided; the accuracy of a product surface is controlled and the quality of products is improved by selecting different wire diameters of the feedstock and controlling the heating temperature; and melting treatment can be performed by a simple thermocouple without need for complex and dear laser heating equipment, so that production cost is reduced. The powder injection molding technology and 3D printing technology are combined, so that complex products can be quickly printed and manufactured, development flow is shortened, and mass production popularization is realized. The feedstock has good economic benefits and wide application prospect.

The invention discloses a low-temperature high-vacuum combination heating table. A quartz base is mounted in a vacuum protective hood, and a sample is placed on the quartz base. The heating table canbe used for heating the sample through heat conduction. The vacuum protective hood is provided with an opening, and a vacuum protective hood cover is connected onto the vacuum protective hood and is provided with a visible window. A first port of a four-way pipe communicates with the vacuum protective hood, a deflation valve is connected between a second port and a vacuum gage, a first control valve is connected between a third port and a protective gas storage tank, a second control valve is connected between a fourth port and a control system, the control system is connected with a gas exhausting pipeline, and the gas exhausting pipeline communicates with a vacuum pump and a molecular pump. The heating table has the following advantages that a heating temperature can be accurately controlled in a low-temperature range (600 DEG C or below), and heating experiment in a vacuum environment or inert shielding gas introduced environment can be carried out as required.

A connecting column with elastic metal sleeves comprises a cylindrical electroconductive shaft, the elastic metal sleeves are sleeved on the shaft, the middle of each metal sleeve plumps outwards, and the end of each metal sleeve is sleeved on the shaft. At least one of the metal sleeves is matched with a round electroconductive hole of a circuit board, at least one of the metal sleeves is matched with a round electroconductive hole of a connection terminal, and the external diameter of the middle of each metal sleeve is larger than the internal diameter of the corresponding round hole. The circuit board of an electric energy meter can be connected with the connecting column rapidly and reliably.

The invention provides a connection device of a solar photovoltaic panel assembly and a production method of the connection device. The connection device comprises a long-strip-shaped body and a side edge which is located on one side of the body, extends in the length direction of the body and is perpendicular to the body. The side edge extends downwards relative to the body. The lower surface of the body is provided with a reinforcing rib extending in the length direction of the body. The body comprises a conductive substrate located in the inner layer and an injection molding layer surrounding the conductive substrate. The conductive substrate comprises a conductive substrate body corresponding to the body and a side edge located on one side of the conductive substrate body and corresponding to the side edge of the body. The injection molding layer is provided with the conductive substrate provided with an opening so that part of the conductive substrate can be exposed, the exposed part of the conductive substrate is provided with a connection hole, and the connection hole and the opening are located in the two ends of the reinforcing rib. The connection device is of a two-layer structure, the connection hole can have a conductive function, the overall strength and load bearing capacity of the connection device can also be guaranteed, and cost and machining difficulty of the connection device are reduced.

The invention discloses a waste gas purifying device easy to mount. The device comprises a body shell, an air inlet and an air outlet are formed in the two ends of the body shell, a first flow equalization screen, a low-temperature plasma electric field, a filter screen assembly, an ultraviolet lamp tube and a second flow equalization screen are sequentially arranged in the body shell from the air inlet to the air outlet, a mounting ring is arranged on the outer surface of the air inlet, a plurality of air outlet nozzles are evenly arranged on the inner ring face of the mounting ring, and the air outlet nozzles penetrate through the air inlet and are arranged in the air inlet. A connecting pipeline is arranged on the outer surface of the mounting ring and connected with an air cooler, and lifting tables are arranged in the low-temperature plasma electric field and at the bottom of the ultraviolet lamp tube. The waste gas purifying device effectively treats high-temperature waste gas, damages and purifies waste water molecules, and is good in effect and wide in application range, and smell and odor are removed.

The invention discloses a water outlet device, a water outlet unit and movable parts used in the water outlet device. The water outlet device comprises a water outlet part, wherein the water outlet part is provided with N water outlet nozzles, N is a natural number larger than 3, at least M water outlet nozzles are arranged in the N water outlet nozzles, M is a natural number not larger than N butlarger than 2, each water outlet nozzle in the M water outlet nozzles is provided with one movable part, the production precision of the water outlet nozzles and rotating parts can be reduced, and the rotating parts can realize standardized production and can be matched with water outlet devices with different numbers of water outlet nozzles or different water outlet nozzle arrangements, so thatmanufacturing cost is reduced; the reliability is good, the structure is simple, the occupied volume is small, and the volume of a shower head can be effectively reduced; and the device can be flexibly used in combination with water spot products with other functions.

Punching structures each include a die, a punch that cooperates with the die to stamp a workpiece, a die supporting member that applies lateral pressure to core pieces stamped out from the workpiece, and a counter pressure applying mechanism that applies counter pressure toward the punch to the core pieces from the side opposite to the punch. The punching structures also include selecting mechanisms, respectively. The punching structures laminate core pieces while applying lateral pressure and counter pressure to the core pieces. The punching structures are arranged along the conveyance direction of the workpiece. The selecting mechanisms select one of the punching structures to be put in a pause state, so that one of the punching structures is put in a pause state during a stamping operation of the punching structures.

An actuating device comprising an actuating element that is moved by a ball stud relative to a base comprising a ball socket. The actuating element can move relative to the base, within at least one pivot plane, between at least two shift positions. At least one recess of the ball socket has an elastic surface area which is flexible in the direction along the radius of the ball socket. The flexible elastic surface area has a centrally arranged pressure contact element, which bears against the joint ball. In a neutral position of the elastic surface area, the contact surface of the pressure contact element is at a distance away from the mid-point of the ball socket which is smaller than the radius of the joint ball, such that it possible to produce actuating devices which are robust in operation and free from play.

A movable protective cover device for a cutting machine, wherein the cutting machine includes a fixed protective cover and a movable protective cover fixed on the cutting head, the movable protective cover engages with the fixed protective cover from bottom to top, and is rotatably connected to the On the fixed protective cover, the movable protective cover is provided with a gear at its rotating connection part, which is characterized in that a rotatable pull rod is connected and fixed on the outer side of the fixed protective cover at the same time, and the upper end of the pull rod is formed with a rack. The rack is meshed with the gear, and the lower end of the pull rod has an open slot, which is plugged and matched with the positioning pin on the rocker arm. The processing error makes the opening and closing of the movable protective cover flexible, avoiding dead spots, stuck positions and out-of-place phenomena, improving the safety performance of the cutting machine, and the maintenance is also very convenient. It is suitable for popularization and use on the cutting machine.

The invention discloses an electric cooker and a sealing structure thereof, and the sealing structure comprises a container body which is provided with a containing cavity with an upward opening; the container body is covered with the loading body; a mounting groove is formed in the peripheral side of the loading body and located in the containing cavity. The sealing assembly is arranged on the mounting groove in a sleeving mode, and the peripheral side of the sealing assembly is connected with the inner wall of the containing cavity in a sealed mode; when the sealing structure is applied to the electric rice cooker, the container body is an inner pot of the electric rice cooker, the loading body is a cooker cover of the electric rice cooker, and the cooker cover is connected with the inner wall of the containing cavity in a sealing mode through the sealing assembly arranged on the mounting groove in a sleeving mode to form a sealing face, so that the influence of the height change of the inner pot is avoided; and the device can also be applied to other functional parts of the electric rice cooker, so that the electric rice cooker has the functions of stewing in water, cooking, sterilizing and the like.

The invention discloses an air conditioner. The air conditioner comprises an air conditioning device, a middle support piece and an air refreshing device. The air conditioning device is provided withan air conditioner air way. The middle support piece is provided with a communicating air way. The air refreshing device is provided with a fresh air way; and the fresh air way communicates with the air conditioner air way through the communicating air way. The air refreshing device is connected with the air conditioning device through the middle support piece. The air refreshing device comprisesa shell and a front panel; the front panel comprises a first panel and a second panel; the second panel and the first panel are arranged in a laminating mode; and the first panel is connected with thesecond panel. In the air conditioner, the front panel is formed by the first panel and the second panel, so that smooth and flat surfaces are formed on two sides of the front panel, and the front panel achieves excellent appearance expression no matter installed on the shell or dismounted from the shell. In addition, the front panel is formed by two layers of the panels, so that the structural strength of the front panel can be improved, and the structure stability of the front panel can be improved.

The invention discloses a vacuum shell model mold and a shell model forming method. The vacuum shell model mold comprises a cover plate, a shell model stock bin, a shell model back film, a shell model surface film, a vacuum negative-pressure sand box and a mold model plate, wherein the shell model stock bin is located in the vacuum negative-pressure sand box; an inner sand box flange is arranged at the lower end in the vacuum negative-pressure sand box, the left side of the inner sand box flange is connected with the vacuum negative-pressure sand box, an outer positioning flange is arranged at the lower end of the outer surface of the shell model stock bin, and the lower end of the outer positioning flange is in contact with the upper end surface of the inner sand box flange; and a sand inlet is formed in the shell model back film, the shell model back film is fixed at the lower end of the shell model stock bin, and the shell model back film, the inner sand box flange and the shell model surface film are matched to form a model shell cavity; and a heating module is arranged on the lower end surface of the mold model plate. According to the vacuum shell model mold, the shell model can be thinned and enlarged, so that a produced casting can be relatively large and heavy, and the problem of small size and lightness of the casting casted by virtue of a model shell are solved; and meanwhile, by utilizing a novel inorganic binder, the pollution problem of the shell model and the recycling problem of waste sand are solved.

The invention discloses a transportation system for forging blank transportation. The transportation system comprises a feeding device for transferring a blank to a blank processing area, a transportation track arranged between a blank output area and the feeding device, and a mechanical clamping jaw suspended on the transportation track and used for clamping and transferring the blank, wherein the mechanical clamping jaw is slidably connected to the transportation track. According to the transportation system, the blank can be completely mechanically transferred to the blank processing area from the blank output area through the mechanical clamping jaw, the transportation track and the feeding device, so that the automatic transportation of the high-temperature blank is realized, the production efficiency is improved, and the risk of damage to an operator by the high-temperature blank is reduced.

The invention discloses a thick film hybrid circuit pin connection structure and method. The thick film hybrid circuit pin connection structure includes a substrate, an integrated circuit portion, a connection portion, and a pin, wherein the substrate is connected to the integrated circuit portion; the substrate is provided with a connection hole that penetrates through the substrate in a direction vertical to the integrated circuit portion; the pin passes through the connection hole; the connection portion includes a first bonding end surface and a second bonding end surface; the first bonding end surface is perpendicular to the second bonding end surface; the first bonding end surface is electrically connected to the integrated circuit portion; the second bonding end surface is electrically connected to the pin. It is ensured that the pin is electrically connected to the integrated circuit portion. Further, since the pin is vertically connected to the integrated circuit portion, thefixing stability of the pin is enhanced, the thick film hybrid circuit pin connection structure is safe and reliable to use, the outer diameter accuracy requirement of the pin and the inner diameter accuracy requirement of the connection hole are reduced, the production precision of the thick film hybrid circuit pin connection structure is reduced, and production efficiency is improved.

The invention relates to engineering machinery, and discloses a rolling wheel assembly of a climbing frame and a tower crane. The rolling wheel assembly of the climbing frame comprises a hinged arm (4), a rolling wheel (3) and a screw rod (6). The rolling wheel (3) is rotatably installed at the first end of the hinged arm (4) and can abut against a standard joint, the hinged arm (4) is rotatably hinged to the climbing frame (2), the screw rod (6) can be in screw joint to the climbing frame (2), the screw rod (6) can abut against the hinged arm (4), and the screw rod (6) can rotate relative to the climbing frame (2) so as to push the hinged arm (4) to rotate around a hinged shaft (9). Through the above technical scheme, the position of the hinged arm is adjusted through the screw rod, the distance between the rolling wheel and a main chord member can be adjusted more accurately, the distance between the rolling wheel and the main chord member is kept within a more accurate range, the adjustable rolling wheel structure can allow low production accuracy, and production cost is reduced.

The invention relates to a punching machine head for punching equipment. The punching machine head comprises a clamping head sleeve and a clamping head. The clamping head is inserted from the lower port of the clamping head sleeve and hung in the clamping head sleeve body. The clamping head and the clamping head sleeve mutually move along the axial direction. The clamping head comprises a connection end face, a ring of side wall and a clamping port. A plurality of long grooves passing through the inside surface and the outside surface of the side wall are arranged on the side wall in a row along a circumferential direction. The long grooves are separated from each other. The long grooves extend along the length direction of the side wall. One ends of the long grooves are far away from theconnection end face. The other ends of the long grooves extend out of the clamping port through a breakage gap on the side wall. The width of the breakage gap is less than that of the long grooves. The side wall at four sides of the clamping port is thickened outwardly to form a ring of bump. The bump is rubbed with the lower port of the clamping head sleeve so that the diameter of the clamping port is reduced. The punching machine head disclosed by the invention is simple and rational in structural design; the production precision of installation aperture of heat dissipation sheets is reduced; the punching installation success rate is also increased; and the yield of magnetrons is further increased.

The invention belongs to the technical field of PM2.5 concentration detection and particularly relates to a system and a method for PM2.5 concentration detection based on photoelectric integration. The system consists of a ventilation chamber, a measurement chamber and a detection part, wherein the ventilation chamber is separated from the measurement chamber by a gas cutter, and the other end of the measurement chamber is connected with a detection channel; the detection part is arranged at the periphery of the detection channel and consists of an optical detection part, a power detection part and a data processing part; the optical detection part and the power detection part are respectively connected with the data processing part. The concentration of PM2.5 particles is respectively detected through optical detection and power detection, and then, fusion calculation is carried out on two detection signals by a kalman filtering algorithm. As no laser generator is used in the invention, the cost of the system is greatly reduced. Meanwhile, detection data is obtained by the detection method adopting two different principles, and the actual value is obtained through fusion calculation, so that the detection precision of the system can be ensured.