47results about How to "Reduces the possibility of "air leaks"" patented technology

The invention discloses an air tightness detection device for an inflatable shaft rubber tube. The air tightness detection device comprises a workbench, a bottom frame, a sliding groove, a clamping sliding block, a clamping head, a limiting expansion sleeve, an inflation device and an air pressure detection device, and compared with the prior art, the air tightness detection device is simple in structure, reasonable in design, capable of detecting air tightness of various inflatable shaft rubber tubes with different diameters and lengths, high in detection precision, easy to detect and operateand worthy of popularization.

The invention relates to a storage unit and a refrigeration appliance with the same. The storage unit (7) comprises a main body (8) and a drawer type door (10), wherein the main body (8) defines a storage room (15); and the drawer type door is used for selectively opening or closing the storage room (15) and can slosh in a sloshing range in the process that the door (10) is pushed toward the body (8) to close the storage room (15). The storage unit is characterized by comprising positioning mechanisms (51, 52), wherein the positioning mechanisms are used for positioning the door (10) in a fixed position or a fixed range smaller than the sloshing range when the door (10) is closed.

The invention provides an efficient evaporator. An efficient distribution measure combining primary distribution with secondary distribution is adopted at a distribution segment to guarantee the sufficient distribution of heavy raffinate at a heating segment; an efficient collection measure is adopted at the outlet of the heating segment to effectively prevent the back mixing of the heavy raffinate; a defoaming structure is adopted at a separation segment to prevent liquid entrainment; and in addition, the design of the entire evaporator can ensure the operation of the equipment in a high vacuum degree, and the used efficient evaporator involves no transmission component and is static equipment, thereby reducing the air leakage possibility of the transmission component, and thus the high vacuum degree of the evaporator is guaranteed.

The invention discloses a preparation method for an electric connector, and the method comprises the steps: assembling a metal housing with a sealing connection hole on a sealing connection die, installing a glass insulating tube and a ceramic insulating tube into the sealing connection hole at an interval, and installing conductor pins into the glass insulating tube and the ceramic insulating tube after compression; sealing the assembled structure through a sealing die box body, carrying out the sintering through a high-temperature sintering furnace, and obtaining an initial electric connector after sintering; carrying out the oxide processing of the initial electric connector; pouring high-temperature-resistant insulating glue into the grooves at two ends of the sealing connection hole of the initial connector, carrying out the room temperature solidification, and forming an insulating protection layer. The high-temperature-resistant insulating glue prepared in the invention can achieve the sealing of two ends of the electric connector, thereby preventing the external moisture and impurities from polluting the glass insulating tube and the ceramic insulating tube. Meanwhile, an insulating protection layer formed by the high-temperature-resistant insulating glue is excellent in high-temperature and high-voltage resistance, and is not liable to be aged after long-time use.

The invention discloses an intake pressure sensor of a motorcycle, The intake pressure sensor comprises a housing and a cover plate. An object placing cavity with an opened upper end is formed at the housing; and an intake connecting end is arranged at the lower end of the object placing cavity and an inlet hole communicated with the bottom of the object placing cavity is formed in the intake connecting end. The cover plate is arranged at the opening formed in the top of the object placing cavity in a closable and cooperative mode; a baffle plate arranged in a loop mode is formed in the object placing cavity, wherein the baffle plate and the side wall of the object placing cavity are arranged at an equal interval; and a sealed groove is formed between the baffle plate and the side wall of the object placing cavity. The edge of the cover plate extends towards one side to form a protruding edge corresponding to the sealed groove; the protruding edge is inserted into the sealed groove completely; a gap is formed between the end portion of the protruding edge and the bottom of the sealed groove and is filled with an adhesive; and the housing and the cover plate are fixedly connected by the adhesive. According to the invention, the intake pressure sensor has the following advantages: the usage amount of the adhesive can be controlled conveniently; the structure is simple; the assembling efficiency is improved well; the cost is low; the sealing performance of the sensor can be guaranteed; and the measuring precision and reliability are enhanced.

The invention relates to an air-leakage-prevention adjusting valve. The air-leakage-prevention adjusting valve comprises a square pipe body, flange openings are formed in the two ends of the pipe body, connecting holes are formed in the four corners of the flange openings, a rotating plate is mounted in the pipe body, the pipe body is formed by three-time right-angle bending and surrounding of a galvanized sheet, right-angle bending connecting plates are arranged at the two ends of the galvanized sheet, and the two connecting plates are in riveted or welded connection with the side wall of the corresponding pipe body.

The multifunctional surface cleaning machine comprises a machine body and a ground brush pivoted to the bottom end of the machine body, a detachable suction source assembly and a dirt containing barrel are sequentially arranged on the machine body from top to bottom, a positioning part extending outwards is further arranged on the machine body, and a guide convex part attached to the side wall of the suction source assembly is arranged at the lower end of the suction source assembly; the machine body is provided with a guide convex part, the machine body is provided with a guide concave cavity matched with the guide convex part, the machine body is provided with a first limiting surface extending to the positioning part, and the guide concave cavity is formed in the first limiting surface and located above the positioning part. The acting force of a user during use is reduced, the stability of holding the machine body by the user during use is improved, and the use experience is improved; besides, the multifunctional surface cleaning machine not only can clean the ground, but also can collect dust, and is high in assembly efficiency, stable in use, safe and reliable.

The invention discloses a shell for a GIS. The shell comprises a transverse pipe and a vertical pipe, wherein the fracture surface of one end of each of the transverse pipe and the vertical pipe is a 45-degree section; the 45-degree sections of the transverse pipe and the vertical pipe are identically connected with each other and are fixed in a welding manner; and the other ends of the transverse pipe and the vertical pipe are connected with flanges respectively. The shell is formed by butt welding of two aluminum pipes which are integrally molded; the shell is simple in structure, convenient to weld, low in cost, good in sealing effect and applicable to engineering batch production of the GIS; the performance of a product is improved when the cost is saved; the production efficiency is improved; and the market competitiveness is greatly improved.