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

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.

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 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 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.

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 teeth of the helical gear unit make point-shaped contacts with each other, and the drive shaft (9) is axially movable relative to the electric motor (2) or the drive wheel (10) without disengaging the gear teeth.

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.

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 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 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 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.