20 results about "Internal cavity" patented technology

The invention discloses an asymmetric electromagnetic coupler suitable for a wireless charging device. The asymmetric electromagnetic coupler comprises a reception assembly and an emission assembly which are oppositely arranged with an interval, the reception assembly and the emission assembly are different in materials of foundations, other structures of the reception assembly and the emission assembly are the same, an inner chamber of the foundation is sequentially disposed with a magnetic film, a magnetic stripe positioning board and a coil limit board, an array magnetic stripe is arranged in a rectangular groove of the magnetic stripe positioning board, a coil is arranged in a groove of the coil limit board, an upper cover board covers the position, and a screw penetrates through a through hole on the cover board and a through hole on a foundation projection and is then connected with an upper nut. Through the asymmetric electromagnetic coupler, influence of eddy current of an aluminum board foundation of a traditional coupler can be reduced, a coupling coefficient and a quality factor are improved, a designed bar-shaped magnetic stripe array disposing mode can enhance lateral offset margin of the asymmetric electromagnetic coupler, and the asymmetric electromagnetic coupler is more suitable for wireless electric energy transmission of electric automobiles.

The invention discloses an online cement granularity detection device capable of improving the measurement effect. The online cement granularity detection device comprises a cement tank, wherein sliding rods are rotationally connected to two sides of the bottom of an inner cavity of the cement tank through rotating seats, sliding sleeves are connected to the surfaces of the sliding rods in a sliding manner, three sampling cylinders are fixedly connected to the surfaces of the sliding sleeves, first electric telescopic rods are fixedly connected to the bottoms of the three sampling cylinders, and sampling slots are formed in the surfaces of the sampling cylinders. The online cement granularity detection device relates to the technical field of cement granularity detection. According to theonline cement granularity detection device, by virtue of the cooperation of magnets and electric magnets, baffles can automatically slide so as to control the opening and closing of the sampling slots, so that the sampling is convenient; and by utilizing the first electric telescopic rods, the three sampling cylinders can be simultaneously or respectively lifted, the heights of the three samplingcylinder can be adjusted, and the cement in different depths can be sampled and detected, so that the detection data is relatively accurate, and the automatic operation is relatively convenient.

The invention discloses a low pressure drop check valve. The low pressure drop check valve comprises a tubular valve body and a valve clack. A lug is arranged on one end of the upper surface of the valve clack; the lug is connected to a bracket rod arranged on the upper wall of an inner cavity of the valve body through a horizontally arranged pin roll; the axis of the pin roll is vertical to a vertical plane of the axis of the valve body; a valve clack seat is arranged in the inner cavity of the valve body; the outer edge of the valve clack seat is hermetically connected to the wall of the inner cavity of the valve body in a surrounding manner; a through hole is formed in the middle of the valve clack seat; the valve clack rotates around the pin roll to hermetically close or open the through hole; the plane of the valve clack seat inclines to the horizontal plane of the axis of the valve body and is vertical to the vertical plane of the axis of the valve body; and the valve clack seat inclines toward the inlet end of the valve body. Compared with the prior art, the low pressure drop check valve disclosed by the invention has the advantages of simple and compact structure and good sealing property, and can be quickly opened when the front and back pressure difference of the valve is smaller.

An installation tool and method are provided to apply a patch to a structure while controlling the porosity in the bond line. An installation tool is provided that includes a frame defining an internal cavity. The installation tool also includes a flexible membrane that divides the internal cavity into a first chamber proximate the surface and a second chamber separated from the surface by the first chamber and the flexible membrane. The flexible membrane is releasably attached to the patch such that the patch faces the surface. The frame includes first and second vacuum ports into the first and second chambers, respectively, such that pressure therewithin is separately controllable. The pressure within the first and second chambers is controlled such that the adhesive is degassed while the patch remains spaced from the surface and the flexible membrane is thereafter caused to be stretched to urge the patch toward the surface.

The invention relates to a throwing type dust-free smashing device. The throwing type dust-free smashing device comprises a closed bucket-shaped smashing device shell, and an external air channel communicating with the top and the bottom of the internal space of the smashing device shell is arranged outside the smashing device shell and communicates with the internal cavity of the smashing device shell through a filtering net A; the smashing device shell comprises a smashing cavity and an air blowing cavity, and the smashing cavity and the air blowing cavity communicate through a filtering net B; a feed port is formed in the top of the smashing cavity, and a sealing cover is arranged on the feed port; the air blowing cavity comprises a turbine fan blowing air to the smashing cavity; a guide assembly is arranged in the smashing cavity and comprises two opposite conical guide plates, the pointed ends of the two opposite conical guide plates are arranged oppositely, and each of the guide plates is provided with a plurality of guide holes; through an air-blowing mechanism, photosensitive raw material is circulated in the smashing cavity and continuously gets thrown and drops down for being smashed.

The invention discloses a hydraulic regulation type turbocharging system, and belongs to the technical field of mechanical design. The hydraulic regulation type turbocharging system comprises a transmission shaft, a hydraulic transmission tube, an adjustment rod, a control body, a control board, springs, centrifugal rods, centrifugal balls, a centrifugal stretching body, second springs, a hydraulic rod, a hydraulic body and a hydraulic plate. One end of the transmission shaft is connected with a crankshaft of an engine, and the other end of the transmission shaft is hinged to one ends of the centrifugal rods. The other ends of the centrifugal rods are hinged to the centrifugal balls, and the centrifugal balls are inlaid in an internal cavity of the centrifugal stretching body. When the rotating speed of the engine increases, an adjustment plate moves upward, and the opening shrinking rate of an exhaust manifold becomes larger; and when the rotating speed of the engine decreases, the adjustment plate moves downward, and the opening shrinking rate of the exhaust manifold becomes smaller. The hydraulic regulation type turbocharging system is reasonable in design and simple in structure, and is suitable for optimal design of an exhaust pipe of the turbocharging system.

A mine filling device includes a sand bunaker, a cementing material container, a stirring device and a conveying system. The sand bunaker includes a body and a jet nozzle; the bottom part of the body is provided with a hole for holding sand; besides, a through hole is arranged on the wall of the body; the jet nozzle is arranged on location of the through hole and is arranged on the outer wall of the body so as to be convenient for communicating the inner cavity of the jet nozzle with the inner cavity of the body by the through hole, thereby jetting fluid to the inner cavity of the body. The jet nozzle of the invention is arranged outside the body; the jet nozzle is mounted and changed from the outside of the body; thus being more simply arranged and more conveniently maintained; the jet nozzle can not be impacted or eroded by the materials in the body, thus prolonging the service life of the jet nozzle; simultaneously, the floating of the materials in the body can not be baffled, thereby being beneficial to successfully discharging the materials in the body.

The invention discloses an exploring tube clamping and righting device of an object detection well. The exploring tube clamping and righting device comprises a shell, four clamping mechanisms, a base, an adjusting mechanism and a righting mechanism, wherein a through cavity is formed in the shell from top to bottom; the four clamping mechanisms are assembled on the bottom end of an inner cavity of the shell every 90 degrees in the circumferential direction; the base is installed on the top end of the shell; the adjusting mechanism is assembled in the inner cavity of the base; and the righting mechanism is assembled on the top end of the base. According to the device, on one hand, the direction of a fixed base can be adjusted according to the actual hardness of exploration geology, so that the installation of equipment is convenient and rapid, and great convenience is provided for workers; on the other hand, the position of an exploring tube can be rapidly fixed, the operation is simple, and time and labor are saved; and additionally, the exploring tube can be rapidly and accurately righted by the device, the exploring tube is parallel to an exploration hole all the time, the position is stable, the operation is easy, the design is reasonable, the use requirements of the existing market are met, and the device is worthy of popularization.

The invention discloses a hydraulic damper. The hydraulic damper comprises a cylinder block, a piston rod and a piston, a cylinder block cover is arranged on the left side of the cylinder block, and afirst magnetic ring is slidably connected to the outer surface of the cylinder block through a sliding groove; a first sealing ring is arranged on the inner side of the cylinder block cover; a smalldamping hole is formed in the left side of the piston, and a large damping hole is formed in the right side of the piston; and a second magnetic ring is arranged on the right side of the piston, the second magnetic ring is movably connected to the surface of an inner cavity of the cylinder block, and a sealing rod is fixedly connected to the left side of the second magnetic ring. According to thehydraulic damper, the shortcomings of the prior art are overcome, and the design is reasonable; by arranging the first sealing ring to be slidably connected to the outer surface of the cylinder blockand a magnetic connection relation between the second magnetic ring and the first magnetic ring, the second magnetic ring can be driven to move in the inner cavity of the cylinder block; the sealing rod on the surface of the second magnetic ring is matched with the large damping hole in the surface of the piston, thus the large damping hole can be sealed at a designated position according to needs, so that liquid in the inner cavity of the cylinder block cannot be transferred, and the piston rod travel can be controlled.