33results about How to "Connection seal" patented technology

The invention relates to a heat shield arrangement for a hot gas (m)-guiding component, which comprises a number of heat shield elements arranged side-by-side on a supporting structure while leaving a gap there between. A heat shield element can be mounted on the supporting structure whereby forming an interior space which is delimited in areas by a hot gas wall to be cooled, with an inlet channel for admitting a coolant into the interior space. According to the invention, a coolant discharge channel is provided for the controlled discharge of coolant from the interior space and, from the interior space, leads into the gap. Coolant can be saved and efficiently used by the specific coolant discharge via the coolant discharge channel, and reduction in pollutant emissions can also be achieved. The heat shield arrangement is particularly suited for linking a combustion chamber of a gas turbine.

A photographic device includes an upper cover component, a lens module, a signal line set, a circuit board, and a lower cover. The upper cover component comprises an upper casing having a through hole and a transparent mask. The transparent mask is fastened under the through hole and exposed by it and does not protrude from an outer surface of the upper casing. The lens module has a photographic lens facing the mask. The signal line set has a fixing end fastened to one end of the upper casing. The circuit board is electrically connected to the lens module and the signal line set. The lower cover and the upper casing are joined and enclose the lens module and the circuit board. As the transparent mask does not protrude from the outer surface of the upper casing, cracks of the transparent mask caused by a foreign object can be prevented.

The invention discloses an unmanned aerial vehicle battery box. The unmanned aerial vehicle battery box comprises a battery box body, a wiring head and a T-shaped bolt, wherein two fixed columns are fixed in the battery box body; a sleeve is fixed on the side wall of the battery box body; the top end surface of the sleeve is connected with an adjusting bolt; one end of a telescopic rod is providedwith a movable plate; two positioning round hole seats are arranged at the center shaft of the movable plate, and the two positioning round hole seats are arranged on the two fixed columns in a sleeving mode respectively; a spring piece is arranged on the side face of the movable plate, and the spring piece is connected with the wiring head through a wire; two stainless steel hinges are connectedand fixed with a battery box sealing cover; and the edge of the battery box sealing cover is fixedly provided with a wear-resistant sealing strip. The adjusting bolt is manually adjusted to enable the telescopic rod on the sleeve to freely stretch and contract, and the specific position of the movable plate is changed, so that batteries with different lengths can be placed in a battery containingcavity; and the two positioning round hole bases enable the movable plate to move accurately and to be not easy to offset.

The invention provides a biogas digester which is used for solving the problem that waste of biogas is easily caused in the slag removal process in the conventional biogas digester. The biogas digester comprises a gas storage tank and a digester body in which a fermentation disc is arranged, wherein the top of the digester body is connected with a sealing cover; a lifting device which can drive the fermentation disc to translate up and down is arranged at the bottom of the fermentation disc; a gas inlet pipe and a gas outlet pipe are arranged between the gas storage tank and the digester body; a gas suction piece I is arranged in the gas inlet pipe; a sealing plate I and a sealing plate II are arranged in the gas storage tank; an elastic piece through which the sealing plate I has the tendency of sealing the gas inlet pipe is connected to the sealing plate I; a cylinder I through which the sealing plate II seals or opens the gas outlet pipe is connected to the sealing plate II; an exhaust pipe and a pressure gage are connected to the digester body; a gas suction piece II is arranged in the exhaust pipe; a sealing plate III is arranged at the end face of the exhaust pipe; and a spring I through which the sealing plate III has the tendency of sealing the exhaust pipe is arranged between the gas suction piece II and the sealing plate III. The biogas digester disclosed by the invention has the advantages that waste of biogas is avoided during slag removal.

The invention relates to a rivet type bolt, in particular to a bolt capable of being used in vibration resistance, tightness and single-face connection in automobile and aviation industry, and belongs to the technical field of fasteners. The rivet type bolt comprises a rivet body and a rivet core, wherein a counter bore and a through hole which are coaxial with the rivet body are arranged on the rivet body, the diameter of the counter bore is larger than that of the through hole, the rivet core penetrates through the through hole, and a rivet head at the upper end of the rivet core is clamped on a boss formed by the counter bore and the through hole. The rivet type bolt is characterized in that the lower end of the rivet head is connected with a rivet core rod, a fracture groove is arranged on the rivet core rod and divides the rivet core rod into an upper part and a lower part, threads are arranged at the upper end of the fracture groove, and a polish rod is arranged at the lower end of the fracture groove; and a protective sleeve is sleeved on the threads, the lower end of the protective sleeve is clamped in the fracture groove, and a chamfer is arranged at the upper end of the rivet head. The rivet type bolt is simple, compact and reasonable in structure, and firm and sealed in connection, and improves resistance to single-face and blind hole connection vibration particularly in simple operations of single-face blind hole connection.

The invention discloses a lithium battery winding core, a mobile phone battery, a mobile phone and a manufacturing method thereof, belonging to the technical field of mobile phones; the lithium battery winding core includes: a positive electrode sheet, a negative electrode sheet and a diaphragm; the diaphragm is arranged between the positive electrode sheet and the negative electrode sheet Between; the lamination of the positive electrode sheet, separator and negative electrode sheet is made into a winding core by winding. One side of the winding core is curved and the other side is flat; a mobile phone battery, including a winding core of a lithium battery. By making the lithium battery winding core into a curved surface structure, it provides a basis for the curved surface battery of the mobile phone; the mobile phone battery is made into a curved surface structure, and the connection with the curved surface of the mobile phone is more sealed, eliminating the gap as much as possible and avoiding the waste of space.

The invention relates to an opening drawing machine for processing of a high-voltage instrument transformer housing. The machine comprises a worktable, a supporting platform, a drawing die, a transmission mechanism and a heating gun, wherein supporting legs are arranged at the bottom part of the worktable, and sleeves are arranged at two sides of the top part of the worktable; an arc-shaped concave port and limiting holes are formed in the top part of the supporting platform; a stopping plate is arranged on the outer wall of the supporting platform; the transmission mechanism comprises a pulling rod, a lead screw and a lead screw nut; a fastening bolt is arranged between the top part of the pulling rod and the drawing die; an anticorrosive coating is arranged at the outside of the drawing die; a drying gun bracket is arranged at the outside of the pulling rod; a baffle plate is arranged on the top part of the lead screw; a nut sleeve which is connected to the bottom part of the pulling rod is arranged at the outside of the lead screw nut. With the adoption of the machine, the high-voltage instrument transformer housing can be reliably mounted and fastened; a drawing opening is high in forming performance and high in quality, so that the connecting sealing performance and the processing efficiency of the high-voltage instrument transformer housing can be improved.

The invention discloses an intelligent metal seal joint. The intelligent metal seal joint comprises a first connection pipe 1, a second connection pipe 2 and a pipe-shaped connection part 3; the firstconnection pipe 1 is provided with a first through hole 4 which is used for allowing a first pipeline 5 to pass, and the first pipeline 5 is tightly connected with the first connection pipe 1; the second connection pipe 2 is provided with a second through hole 6 which is used for allowing a second pipeline 7 to pass, and the second pipeline 7 is tightly connected with the second connection pipe 2; the first connection pipe 1 is tightly connected with one end of the pipe-shaped connection part 3, the second connection pipe 2 is tightly connected with the other end of the pipe-shaped connectionpart 3, and the pipe-shaped connection part 3 is provided with a third through hole 8 which is used for allowing the first connection pipe 1 and the second connection pipe 2 to pass; the first through hole 4, the second through hole 6 and the third through hole 8 are coaxially formed; and the first connection pipe 1, the second connection pipe and the pipe-shaped connection part 3 are made of shape memory alloy, and thus, the corrosion resistance and the sealing performance of the pipe joint can be improved.