30results about How to "Contact surface stability" patented technology

The invention relates to a full face type pulling plate and clamping piece structure for a transformer iron core. The full face type pulling plate and clamping piece structure comprises an upper clamping piece, a lower clamping piece and a pulling plate, wherein cross sections of the upper clamping piece and the lower clamping piece have a groove shape; both ends of the pulling plate are providedwith chucks; the webs of the upper clamping piece and the lower clamping piece are provided with troughs of which the shapes are matched with those of the chucks; the chucks are clamped on the rear side of the troughs; and the pulling plate, the upper clamping piece and the lower clamping piece are stuck on the same plane of the iron core. In the full face type pulling plate and clamping piece structure, both ends of the pulling plate are provided with the chucks, both ends of the pulling plate are clamped in the troughs of the upper clamping piece and the lower clamping piece in an inlaying way, and the pulling plate, the upper clamping piece and the lower clamping piece are stuck on the same plane of the iron core, so that the contact surface of the clamping pieces and the iron core is more smooth, and a bundling effect on the iron core is relatively good, and the difficulty in processing an insulating material filled in the center of the iron core is reduced. The full face type pulling plate and clamping piece structure is easy to assemble and has high iron core assembly efficiency.

The invention discloses a multi-protection safety drawer cabinet. The cabinet comprises a cabinet body, and a safety drawer and a common drawer are inserted into the cabinet body in a sliding manner;the safety drawer comprises a panel and a drawer box; and blocking strips are fixedly installed on the inner walls of the periphery of the drawer box. hidden grid plates are placed on the blocking strips; a plurality of magnetic conductive columns are equidistantly inserted into one ends, close to the panel, of the blocking strips; the lower ends of the multiple magnetic conductive columns are inserted in the bottom wall of the drawer box, magnetic strips are embedded in the bottom walls of the ends, close to the panel, of the hidden grid plates, two brackets are symmetrically installed on thebottom wall of the drawer box, magnetic plates are inserted in the two brackets in a sliding mode, and a plurality of lock grooves are formed in the ends, away from the panel, of the hidden grid plates. The magnetic strips on the hidden grid plates are attracted through the magnetic plates and the magnetic conductive columns, the concealment and safety are improved, the safety is further improvedthrough the lock rods, the hidden grid plates can be opened only when the safety drawer is closed through a top plate and an ejector rod, and the safety and concealment are further improved.

A force measuring device is disclosed and comprises a guide sleeve, a testing shaft, an installation plate, a sensor, a sealing cover, a support rack and an elastic member, wherein the sensor is connected with the testing shaft via the installation plate, the testing shaft is mounted in the guide sleeve, a wheel shaft is mounted on the testing shaft, and a testing pressure head is fixedly mounted on the wheel shaft. Outer surfaces of the installation plate and the testing shaft are provided with guide rails. An adjusting rod is mounted on the sealing cover; a bearing is mounted on a part, contacting with the adjusting rod, of the sealing cover; the elastic member is mounted on the testing shaft, and one end is in contact with the testing shaft while the other end is in contact with the installation plate; sealing rings are mounted between the testing shaft and the guide sleeve and on an outer surface of the guide sleeve. The measuring device is simple in structure, easy in installation, high in measurement accuracy and great in reliability and practicality; the measuring device can be used for measuring force acting on a stationary or moving member.

The invention belongs to the technical field of electronic products, and particularly discloses a transportation device with a convenient angle adjusting function for electronic products. In order tosolve the problems that an electronic product transportation device is poor in designed mobility and poor in skid resistance, and the angle can not be well adjusted, the following scheme is provided as following: the transportation device comprises a fixed plate; four supporting rods are fixed to the outer wall of the bottom of the fixed plate through bolts, and are located at the four corners ofthe outer wall of the bottom of the fixed plate; rolling wheels are arranged at the bottoms of the four supporting rods; the walls of the opposite sides of two rolling wheels are fixedly provided witha first rotating rod through bolts; and a first gear plate is welded to the outer wall of one side of the first rotating rod. According to the transportation device, a second gear plate can be well driven to rotate so as to drive the rolling wheels to move, moving of the transportation device is more convenient, the flexible mobility of the transportation device is improved, sliding of the transportation device can be well prevented in the using process, the transportation device and a contact face are more stable, and the skid resistance of the device is improved.

The invention relates to an automatic cleaning device of a measuring instrument. The device comprises a base and a measuring plate, a first support column and a second support column are fixedly connected to the bottom of the measuring plate, a first air bag is arranged between the first support column and the second support column which are sleeved with support springs, and the support springs are located between the base and the measuring plate; a stand column is fixedly connected to the side of the measuring plate, a first support platform and a second support platform are fixedly connectedto the two sides of the stand column respectively, a second air bag is fixedly connected to the first support platform, a gas-guide tube is communicated between the second air bag and the first air bag, the second support platform is provided with a disinfection tank and a liquid storage tank, a piston is slidably connected into the disinfection box, the piston divides the interior of the liquidstorage tank into a liquid chamber and a gas chamber, a piston rod is fixedly connected to the piston, the free end of the piston rod is movably connected to the second air bag, a sprinkler pipe is arranged at the bottom of the liquid chamber, a gas ejector pipe is communicated with the bottom of the gas chamber, and a U-shaped pipe is communicated between the liquid chamber and the liquid storagetank. By means of the device, the measuring instrument can be cleaned.

The invention discloses a multi-protection safety drawer cabinet, which comprises a cabinet body, on which a safety drawer and an ordinary drawer are slidingly inserted, the safety drawer includes a panel and a drawer box, and the drawer box is fixed on the inner wall around A retaining bar is installed, and a hidden grid plate is placed on the retaining bar. A plurality of magnetic conducting columns are inserted equidistantly at one end of the retaining bar near the panel, and the lower ends of the plurality of magnetic conducting columns are inserted in the bottom of the drawer box. On the wall, a magnetic strip is embedded on the bottom wall of the hidden grid close to the panel, and two brackets are symmetrically installed on the bottom wall of the drawer box, and a magnetic plate is slidably inserted on the two brackets. , the end of the hidden shelf away from the panel is provided with a plurality of lock slots. The present invention absorbs the magnetic strips on the concealed shelf through the magnetic plate and the magnetic guide column to increase the concealment and safety, and further increases the safety through the lock bar, and the concealed shelf can only be opened by closing the safety drawer through the top plate and the ejector rod, further Increased security and concealment.

A force measuring device, including a guide sleeve, a test shaft, a mounting plate, a sensor, a cover, a bracket, and an elastic member. The sensor is connected to the test shaft through the mounting plate; the test shaft is installed in the guide sleeve, and a wheel shaft is installed on the test shaft. The test head is fixedly mounted on the axle. Guide rails are respectively installed on the outer surfaces of the mounting plate and the test shaft. An adjustment rod is mounted on the cover. Bearings are installed on the part where the cover is in contact with the adjusting rod. The elastic member is installed on the test shaft, one end is in contact with the test shaft, and the other end is in contact with the mounting plate. A sealing ring is installed between the test shaft and the guide sleeve and on the outer surface of the guide sleeve. The test device is simple in structure, easy to install, high in measurement accuracy, reliable and practical, and can realize the measurement of the force acting on a static or moving component.