41results about How to "Does not affect connectivity" patented technology

The invention relates to the dustproof and vacuum pumping hardware of an optical system, in particular to an optical lens with a dustproof and vacuum pumping function. The optical lens comprises a lens cone, a vent hole, and a dustproof component, wherein the vent hole is arranged on a lens cone wall; and the dustproof component is arranged on the vent hole and is made of a cellular material. The optical lens has the good exhaust performance and the effective dustproof and vacuum pumping function.

The invention discloses a multilayer testing sampling valve. The multilayer testing sampling valve comprises a mandrel and a shell; the shell is shaped like a cylinder, a channel with a flared section is formed in the lower section of an inner cavity of the shell, a through hole matched with the outer diameter of the mandrel is formed in the top end of the shell, the mandrel with a main liquid channel penetrates through the through hole, two o-shaped sealing rings are embedded in the inner wall of the through hole, the sealing effect is achieved when the mandrel moves up and down in the through hole, a convex ring matched with the inner cavity of the shell is formed on the outer wall, on the lower half part, of the mandrel, two o-shaped sealing rings are embedded in the outer peripheral face of the convex ring, the mandrel, the convex ring and the inner cavity of the shell can form a closed sampling cavity, a mandrel side opening is formed in the side face of the upper portion of the mandrel, when the bottom of the convex ring is located at the bottom of the inner cavity above the flared section, the mandrel side opening is just located between the o-shaped sealing rings of the through hole in the top end of the shell, and the sampling cavity is a closed cavity. According to the multilayer testing sampling valve, switching-on and switching-off are only for a single layer and do not affect communication of a main runner.

The invention relates to the field of medical apparatuses, and discloses a portable slipper for operations. The slipper comprises a slipper body by using an EVA texture, the slipper body comprises a slipper top and a slipper sole, and a cushion is fixed to the inside of the shoe sole; the cushion is wrapped with a wearable portion, an inflator is arranged inside a first cavity, and a foot entranceis formed in the top of the slipper body; the foot opening of the slipper body is enclosed by a foot protecting air bag, the foot protecting air bag is communicated with a communicated pipe, and an air inlet pipe is installed on the slipper sole; the air inlet pipe is inserted inside the communicated pipe, the inflator is communicated with a flexible pipe, and the flexible pipe is communicated with the air inlet pipe; a one-way valve is arranged on the air inlet pipe, a limiting opening is formed in the inflator wall, and an inserting hole is formed in the slipper sole, and a limit rod is used for being inserted inside the limiting opening; compared with the prior art, the slipper body adopts the EVA material and is integrally made, water resistance and resistance of sharp device puncturing are achieved by arranging the foot protecting air bag, a better insulation effect is achieved, safety of medical workers is achieved, blood contaminating the slipper is avoided, injuring the humanskin is avoided, and the slipper is applicable to outdoor operations of the medical workers.

The invention belongs to the technical field of coal bed gas well cementation, and specifically relates to a selective segmented well cementing technology of a double-target layer coal bed gas well and a well structure. The upper and lower intervals of two target coal beds are sealed and cemented by one-time well cementation; the well structure with target coal beds having set sliding sleeves inside and without cementing the well, and the corresponding process reduce reservoir stratum pollution and improve the permeability. The selective segmented well cementing technology has the advantages that (1). the sliding sleeves are set in coal bed sections without well cementing, so that the pollution of well cementing cement rings to coal beds is reduced, and meanwhile the coal beds can be prevented from collapsing into a shaft; (2). the one-time well cementation realizes the cement well cementation in the non-coal bed section, prevents a water-rich stratum from affecting the subsequent drainage, and meanwhile maintains the original permeability of the coal bed section; (3). the second-section well structure has a simple structure, downhole materials are set at one time, and the operation efficiency is high; (4). compared with the technical scheme with CN104481468B, the selective segmented well cementing technology does not sand filling and sand flushing, does not cause reservoir stratum turbulence and reduces the permeability of near-wellbore areas; and (5). the sliding sleeves are set in the coal bed sections in advance, and the subsequent fracturing construction does not require perforation.

The invention discloses a microwave conversion joint wiring terminal. The wiring terminal comprises a wiring jack and a plug board. The wiring jack is plugged into a vehicle PVC panel through the plug board. The wiring jack is internally provided with a copper core used for plugging the PVC panel. The wiring jack is further connected with a fixed plate which is vertical to an axial center line of the wiring jack. The fixed plate is provided with a screw hole, and is fixedly connected to a vehicle PVC assembly by passing a bolt through the screw hole. The fixed plate is additionally arranged on an original plug board on which the wiring terminal is plugged into the PVC panel, and the wiring terminal is firmly fixed by passing the bolt through the screw hole. When a wiring terminal corresponding to a microwave conversion joint is repeatedly plugged, a PVC plate circuit is stably connected by the copper core without influencing circuit connection between the wiring terminal and the PVC panel. The wiring terminal has the advantages of being simple in structure, convenient to process and manufacture, resistant to plugging, not easy to fall off and break a circuit, safe to use, stable and the like.

The invention relates to the technical field of mahjong machines, especially to a shuffling and middle lifting device of the mahjong machine. The shuffling and middle lifting device of the mahjong machine comprises a shuffling mechanism and a middle lifting mechanism, and the shuffling mechanism comprises a large disc driving assembly, a large disc, a tile poking device and a fixing base. The middle lifting mechanism comprises a middle lifting driver, a lifting rod and a control panel; the middle of the large disc arches upwards; an accommodating space is formed between the upward arch in themiddle of the large disc and the bottom plate; the fixing base, the large disc driving assembly and the medium lifting driver are all located in the accommodating space, an inner gear ring is arrangedon the large disc, the large disc driving assembly comprises a large disc driver and a speed reducer, the speed reducer comprises an input gear and an output gear, the large disc driver drives the input gear to rotate, and the output gear is meshed with the inner gear ring of the large disc. According to the scheme, the problem that in the prior art, a mahjong machine is large in size due to thefact that a large-disc motor is installed on the bottom plate at the bottom of a box is solved.

The invention belongs to the field of communication equipment, and particularly relates to an extensible cabinet power distribution unit which comprises a bottom box, a main input module, a pluralityof copper bar limiting assemblies, copper bars and a plurality of extension modules, the main input module is installed in the bottom box in a matched mode, and the copper bar limiting assemblies arelaid in the bottom box. The copper bar is limited by the copper bar limiting assemblies and is electrically connected with the main input module, the extension modules are laid in the bottom box, eachextension module can be independently plugged in and pulled out of the bottom box, and each extension module is provided with a power socket and a plugging piece used for being electrically connectedwith the copper bar. The modular design is adopted, the extension modules can be increased or decreased according to needs, and connection of circuits of other extension modules is not affected by loss of any module.

The invention provides a method for reducing a specific absorption rate. The method comprises: when a voice task is detected, a first antenna is used as a diversity receiving antenna and a second antenna is used as a transmitting antenna; when a data task is detected, the first antenna is used as a transmitting antenna and the second antenna is used as a diversity receiving antenna. The first antenna is arranged at the top of a mobile terminal and the second antenna is arranged at the bottom of the mobile terminal. Therefore, the first antenna and the second antenna are invoked according to the current state of the terminal; and the two antennas can be used as a receiving antenna and a transmitting antenna respectively instead of being used as receiving antennas or transmitting antennas simultaneously when the mobile terminal is processing either a voice service or a data service, so that the specific absorption rate (SAR) value can be reduced. While the SAR value is reduced, the antennas can work normally; and thus the wireless connection performance is not affected when the SAR value is reduced.

The invention relates to the technical field of hydraulic engineering, in particular to a pump station installation supporting structure for special geology and an adjusting method.The pump station installation supporting structure comprises a pump station body and a fixing ring, hydraulic telescopic rods are evenly installed on the outer side of the fixing ring, vertical rods are installed at the other ends of the hydraulic telescopic rods, and fixing holes are formed in the top ends of the vertical rods; a groove is formed in one side of the fixing ring, the groove is formed in the outer side of the pump station main body water pipe, a connecting pipe structure is installed at the other end of the groove, and a bending detection switch is installed on the inner side of the connecting pipe structure; according to the invention, through the arrangement of the pump station main body, the fixing ring, the vertical rod, the hydraulic telescopic rod and the like, the pump station main body can be well supported and fixed, and the subsequent inclined pump station main body can be conveniently adjusted and used, so that the use stability of the pump station main body is ensured.

The invention discloses an oil smoke purifier purification efficiency detection device which comprises a supporting frame provided with a first oil chamber, a first oil gas conveying pipe communicated with the first oil chamber is arranged on the supporting frame located on the upstream of the first oil chamber, a first dust sensor is arranged on the first oil gas conveying pipe, and the first oil gas conveying pipe is further communicated with an oil sending and conveying assembly. The first oil chamber is communicated with an oil smoke purifier through a first connecting sleeve, a second oil chamber is arranged at the downstream of the oil smoke purifier, a second connecting sleeve is arranged between the oil smoke purifier and the second oil chamber, a second oil gas conveying pipe is arranged at the downstream of the second oil chamber, a second dust sensor is arranged on the second oil gas conveying pipe, and the other end of the second oil gas conveying pipe is communicated with an exhaust fan. The purification efficiency detection of a simulated field environment is realized, the oil mist conveying uniformity is high, the detection precision is guaranteed, the problems of high field arrangement difficulty and low detection precision of detection equipment are solved, and meanwhile, oil gas can be effectively prevented from adhering to the first oil gas conveying pipe and the second oil gas conveying pipe.

The invention provides a shoe with a heating function, and a power supply component. The shoe comprises a shoe body, a heating pad, a control switch and the power supply component, the heating pad is arranged at the sole position in the shoe body, the control switch is arranged on the outer surface of the shoe body, the heating pad is electrically connected with the power supply component and the control switch, and the control switch is used for controlling the heating pad to be opened or closed. The heating pad structure is arranged to heat the shoe sole part, so use is easy, and the use effect is good; and the power supply assembly combines wired, wireless and battery power supply technologies, so the use convenience is improved to the maximum extent.