61results about How to "Achieving a watertight seal" patented technology

The invention discloses an underwater multiphase flowmeter based on Ba133 and used for oil well metering of an underwater process system. The underwater multiphase flowmeter comprises a flowmeter body, a Venturi tube module, a radioactive source module, a detector module, an electronic bin module, a temperature and pressure sensing module and a differential pressure sensing module, the Venturi tube module is sealed inside a channel of the flowmeter body, the radioactive source module, the detector module, the temperature and pressure sensing module and the differential pressure sensing module are waterproof and connected to the flowmeter body in a sealed mode, the electronic bin module is waterproof and connected to the detector module in a sealed mode. The underwater multiphase flowmeter is suitable for measuring multiphase flow directly underwater, can be placed the underwater environments of ocean wells and the like, and is suitable for on-line flow real-time monitoring of underwater single-well or multi-well oil and gas production systems.

The invention relates to a floating and waterproof connector. The floating and waterproof connector comprises a square disc shell, an installation panel and a square disc rubber mat, wherein the square disc rubber mat is arranged between the square shell and the installation panel, an inner ring of the square disc rubber mat is pressed on the square disc shell by a fastening press piece, a gap isformed between the fastening press piece and the installation panel and is used for the square disc shell to float relative to the installation panel, at least four installation holes are formed in the square disc shell and are used for fixed pieces to penetrate through, fixed holes are formed in the installation panel, are corresponding to the installation holes and are used for fixing the fixedpieces, a floating shaft sleeve is arranged in the installation holes in the square disc shell in a penetrating way, radial floating distance between the floating shaft sleeve and the installation holes is kept, the fixed pieces penetrate through the floating shaft sleeve, the floating shaft sleeve is pressed by the fixed pieces, and a step surface formed by diameter-changing formation of a tail end of the floating shaft sleeve is riveted with a square disc gasket arranged between the square disc shell and the square disc rubber mat.

The invention relates to a stay cable viewable beam end sealing waterproof cap which is arranged on a pipe orifice at the front end of a waterproof cover and comprises a waterproof cap body, wherein the waterproof cap body is of two-sectional involution type structure or multi-sectional combined type structure; a stepped hole is formed in the inner circumferential wall at the rear end of the waterproof cap; the front end of the waterproof cover stretches into the stepped hole; a first seal ring is arranged in the axial clearance of the stepped hole and the waterproof cover; a third seal ring is arranged at the front end of the waterproof cover; a second seal ring is arranged on the inner circumferential wall of a waterproof cover body; multiple annular bulged ribs are arranged on the contact surface, towards the cable body, of the second seal ring; under the hooping action of the waterproof cover body, the second seal ring deforms the multiple annular bulged ribs to annularly embrace the cable body; and a visible window is arranged on the waterproof cap body. The stay cable viewable beam end sealing waterproof cap can effectively seal the front end of the waterproof cover to play areliable protective role and can conveniently observe the inner service condition of the waterproof cap.

The invention discloses a two-way manual input structure for an electric cylinder. The two-way manual input structure for the electric cylinder comprises a transfer plate, a gear, a gear case, an upper bearing pressing plate, a lower bearing pressing plate, an upper bearing, a lower bearing, a cover plate, a pressing plate, a manual input shaft, a large bevel gear, a small bevel gear, an adjusting backup ring, a bearing sleeve and a manual shell. The two-way manual input structure is added at the rear portion of the gear case through an output shaft of a reducer or a motor and the connecting gear, the purpose of integrating a manual function in a small space is achieved, and the manual structure has an input-direction choosing function; the structure achieves the manual function by fully utilizing a rear support lug side space size of the foldback type electric cylinder, the manual input shaft of the structure is coaxial with an electric cylinder rear hinged shaft, and thus the manual function is easy to achieve; the structure has the characteristics of being compact in structure and low in weight, and the axial length of the electric cylinder is not added; and the two-way manual input structure for the electric cylinder has a watertight structure and meets the requirements for environment of outdoor use.

The invention discloses a shielded cable deconcentrator which comprises: a shielding piece used for being attached to shielding layers of a plurality of shielded cables connected together; a conductive shell which is used for providing an axial channel for surrounding the connection positions of the plurality of shielding cables and the shielding piece, and is in contact with the shielding piece to realize the connection of the shielding layer; and sealing pieces which are arranged on the two sides of the axial channel and are connected with the conductive shell so as to carry out waterproof sealing on the connection positions of the plurality of shielding cables. According to the invention, through the axial channel of the conductive shell, electric insulation isolation of a connection position is realized; through the shielding piece which is in contact with the shielding layer of the shielding cable and the conductive shell at the same time, connection of multiple cable shielding layers is achieved, and electromagnetic interference is avoided; and waterproof sealing of the connection position is achieved through the sealing piece matched with the conductive shell.

A universal technique for motor-driven vehicles, especially the amphibious ones, features that its integral car has sufficient floatage in water for high load-bearing power, its individual power source is suitable for different power types, its wheel has low friction coefficient, its vibration damping direction is consistant with that of wheel pumping, and high-safety steering wheel is used for high steering performance.

The invention provides an unmanned aerial vehicle with a water falling protective structure, and particularly relates to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, wherein the unmanned aerial vehicle body comprises a fuselage shell, the water falling protective structure and a control system, and a plurality of rotors arearranged on the outer side wall of the fuselage shell; the water falling protective structure comprises a first driving mechanism and a window cover plate, the control system comprises a control circuit board; the control circuit board is provided with a controller, a driving circuit and a wireless communication module, the controller is correspondingly and electrically connected with the drivingcircuit and the wireless communication module, and the controller controls the operation of the first driving mechanism through the driving circuit; and the first driving mechanism and the control system are arranged inside the fuselage shell, a heat dissipation window matched with the window cover plate is arranged on the side wall of the fuselage shell, and the first driving mechanism drives the window cover plate to move linearly so as to open or close the heat dissipation window. The unmanned aerial vehicle can perform the waterproof operation by closing the heat dissipation window in time through remote control before falling into the water.

The invention discloses cofferdam equipment applied to a diversion canal and an assembly method thereof. The cofferdam equipment comprises a longitudinal cofferdam, transverse cofferdams, a power boat, anchoring devices and supporting trusses, wherein the longitudinal cofferdam is pressed on a canal bottom lining board; the transverse cofferdams are pressed on a canal slope lining board and are separately connected to the two ends of the longitudinal cofferdam to form a U-shaped cofferdam; the restored board to be lined of the diversion canal is positioned within an envelope range of the U-shaped cofferdam; the two supporting trusses are separately mounted between the two transverse cofferdams; the two or more anchoring devices are fixedly arranged on a canal embankment; each anchoring device is connected to the longitudinal cofferdam or the transverse cofferdams through anchoring chains; and the power boat is positioned at the water side of the longitudinal cofferdam. The longitudinalcofferdam and the transverse cofferdams are assembled on water, are injected with water to sink, are positioned by the anchoring chains, float after water pumping, and are dismounted, so that zero emission of the canal can be realized.

The invention relates to a sealed electric connector for transmitting high-speed radio frequency or differential signals on a vehicle, which comprises a first connector and a second connector, wherein waterproof sealing between the first connector and an equipment mounting panel is realized through a sealing rubber pad, and waterproof sealing between the first connector and the second connector is realized through a flexible sealing element; a flange plate is arranged on a connector shell I of the first connector, and waterproof sealing is realized between the flange plate and the equipment mounting panel through the sealing rubber pad; the first connector and the second connector are provided with locking structures which are matched with each other, and the first connector and the second connector are locked with each other after being inserted through the locking structures; and the first connector is also provided with an identification key which is used for playing a role in error-proofing identification. The connector shell has universality, and a terminal structure for transmitting radio frequency signals or differential signals can be installed in the connector shell, so that function of transmitting the radio frequency signals or the differential signals is achieved, the cost is low, the size is small, and the waterproof performance is good.

The invention discloses a multi-point mechanical lock for an anti-dropping reinforced cabinet, and aims to provide a mechanical door lock which is resistant to strong vibration and strong impact mechanical environment. According to the technical scheme, a lock tongue (10) is connected with a gear through a lock hole of a lock box cover (12), a key push a stop pin (8) to compress a spring (7) to connect with a square shaft lock core (6), after the stop pin is separated from a lock cover (9), the square shaft lock core is rotate to drive the lock tongue to rotate, the end gear is driven to rotate at the same time, the gear is linked with racks (4) at two sides, connecting rods (3) are pushed to slide under the limiting and guiding action of sliding chutes (2) at two ends, the connecting rodsare clamped and locked in end locking catches (1), and the lock tongue (10) is rotationally clamped into a middle locking catch (11), so that the two end locking catches (1) and the middle locking catch clamped into the middle generate larger compression pre-tightening force; after the lock tongue is locked in place, the key is withdrawn; and the spring (7) pushes the stop pin to be clamped intothe lock cover (9), so that the anti-dropping function of resisting the strong vibration and the strong impact mechanical environment is realized.

The invention relates to a flip type connector with a rubber-coated tail part and a metal stop elastic sheet. The flip type connector comprises a socket shell, an end cover hinged to the rear end of the socket shell through a pivot, and a power terminal in interference fit with a center hole of the socket shell. An inner rubber core is buckled at the bottom of the power terminal; a tail cover is fixedly arranged at the bottom of the socket shell; a stop protruding block is arranged on the rear side face of the end cover in a protruding mode, a first groove is formed in the top face of the rearend of the socket shell in a concave mode, a sliding groove is formed in the inner wall of the first groove, a metal stop elastic piece is embedded in the sliding groove from top to bottom, and whenthe end cover is opened, the stop protruding block is matched with the metal stop elastic piece to achieve end cover normal opening in a plug-in state. The metal stop elastic piece comprises a mounting part, a deformation part, a positioning convex point part and a positioning claw part which are integrally formed. According to the flip type connector provided by the invention, a multidirectionalwaterproof function is realized, the end cover can be always in the same state under the condition of no external force, and meanwhile, the designed metal stop elastic sheet can keep a relatively longservice life.

The invention discloses a high-pressure-resistant energy-concentrated directional explosive charge, and a use method thereof, and belongs to the technical field of diaphragm walls. The directional explosive charge comprises an explosive located in a blasting cartridge, an electric detonator, and a first sealing element and a second sealing element which carry out waterproof sealing on the two ends of the blasting cartridge separately, wherein the first sealing element comprises a cover plate matched with the blasting cartridge in diameter, a sealing rubber gasket located at the junction of the cover plate and the blasting cartridge, a first wiring terminal penetrating through a conductive wire used for connecting the electric detonator, of the cover plate, and transferring a current, and a fixing assembly connecting the cover plate and the sealing rubber gasket with the blasting cartridge; and the junction of the first wiring terminal and the cover plate is sealed. According to the directional explosive charge disclosed by the invention, the waterproof sealing is carried out on the blasting cartridge through the first sealing element and the second sealing element, mud or water cannot enter the storage position of the explosive, and the explosive can be fired by the detonator.

The invention provides a wireless charging device and method for an explosion-proof scene, the charging device is used for wirelessly charging a movable electromechanical device, the bottom of the movable electromechanical device is provided with a charging receiving end, the charging device comprises a charging transmitting end, the charging transmitting end is arranged in a telescopic water storage tank, and the charging receiving end is connected with the telescopic water storage tank; the charging transmitting end is used for matching with the charging receiving end for charging; when the telescopic water storage tank stretches out, the charging transmitting end is driven to be close to the charging receiving end, and when the telescopic water storage tank retracts, the charging transmitting end is driven to be away from the charging receiving end; and the water medium is arranged in the telescopic water storage tank, the water medium submerges the charging transmitting end, and during charging, the upper surface of the water medium submerges the wireless charging receiving surface of the charging receiving end. Through the arrangement of the telescopic water storage tank and the charging transmitting end and the water medium in the telescopic water storage tank, water sealing of the charging structure in the wireless charging process is achieved, energy release in the charging process is isolated, and the charging safety in an anti-explosion scene is greatly improved.

The invention relates to the technical field of intelligent camera shooting. The invention relates to a camera, in particular to an intelligent camera waterproof key signal detection method. A cameracomprises a housing and a lens, and a lens is clamped in the center of the front surface of the shell; a circuit board is clamped in an inner cavity of the shell; the circuit board comprises a controlchip, a touch key and a matched circuit module; the touch key and a matched circuit module form a reference capacitor Cp; the touch keys are attached to the inner wall of the shell; the part of the touch key clung to the shell is used as a medium. According to the invention, the touch key is clung to the inner wall of the shell; because the shell part tightly attached to the touched key is used as a medium, when a finger touches the shell part, an induction capacitor Cf is formed, and when the finger touches the medium, control can be carried out, so that waterproof sealing can be achieved, the operation is convenient, and the safety of the intelligent camera applied to an outdoor scene is greatly improved.