43results about How to "Easy field replacement" patented technology

An actuator load path monitoring system for an aircraft having an aircraft structure, a control surface, and, an actuator connected between the aircraft structure and the control surface to support and position the control surface as desired relative to the aircraft structure. The actuator is of a type including a) an upper actuator assembly securely connected to the aircraft structure, including a motor assembly and gear assembly; b) a ball screw assembly operatively connected to the gear assembly; c) a tie-rod assembly positioned within the ball screw assembly; and, d) a lower actuator assembly securely connected to the control surface, wherein actuation of the ball screw provides selected positioning of the control surface. The actuator load path monitoring system includes an upper load sensing assembly positioned in an upper load path between the upper actuator assembly and the aircraft structure. The upper load sensing assembly provides upper indications of the applied forces in the upper load path when the upper load path is disconnected. A lower load sensing assembly is positioned in a lower load path between the lower actuator assembly and the control surface. The lower load sensing assembly provides upper indications of the applied forces in the lower load path when the lower load path is disconnected. A computer system receives the upper and lower indications of applied forces and analyzes the upper and lower indications, thereby monitoring the structural integrity and safety of the upper and lower load paths by annunciating the detection of a failed portion thereof.

The present invention is directed to new and improved armor protection that can replace the existing crew cabin with a field replaceable armored crew compartment to be attached to the existing body of an HMMWV military vehicle to protect the military personnel within from explosive blasts, roll-over or collisions. In accordance with the concepts of the present invention, in order to provide additional protection to personnel in the HMMWV crew compartment, a sacrificial V shaped hull is designed to be attached onto the underside of the crew compartment over the HMMWV frame rails. In the event of an explosion underneath the HMMWV, the V shaped hull will shield the personnel inside the cabin.

A washer/extractor having a one-piece plastic water hose connecting fitting having a base plate, a tubular hose connection portion that defines a passageway communicating between a hose connected to the fitting and an opening in the wall to which the fitting is mounted, and a pair of clamping members disposed in parallel relation to a rear side of base plate. The wash tub opening has a key hole configuration which enables the arms of the fitting to be positioned into the opening in a first position of the base and upon rotation of the base plate to a second position locates the clamping arms behind mounting portions of the wall for securement by respective fasteners extending through the base plate, wall mounting portions, and clamping arms.

A bead lock tire rim with a supplemental tread on the bead lock to protect the rim and the bolts. The tread extends past the edge of the rim to keep the tire from being split and the side area of the supplemental tread protects the bead lock while providing enhanced traction to the sidewall of the rim. A rim using a rounded projection to eliminate tire cutting and recessed nut locations with secure faceting is also provided for simple field repairs and long term durability.

An integrated load sensing system includes a housing including a coupling pin portion thereof. A bridge circuit includes a set of strain gauges bonded to the coupling pin portion. A bridge circuit excitation, error correction, and amplification (BCEECA) subsystem is operatively connected to the bridge circuit for receiving indications of shear load from the strain gauges, correcting signal error, and amplifying the indications of shear load. The BCEECA subsystem provides amplified output signals. A power conditioning module is operatively connected to the BCEECA subsystem for receiving power from an external power supply and conditioning power to an appropriate state for driving the bridge circuit as well as an appropriate state for error correction and amplification circuitry within the BCEECA subsystem. A logic module compares the amplified output signals to a predetermined signal threshold and provides latching of enunciation in accordance with a selected delay after the threshold is surpassed. An enunciation element providing enunciation of the output signals surpassing the signal threshold in accordance with the logic module. The bridge circuit, the BCEECA subsystem, the power conditioning module, the logic module, and the enunciation element are contained and sealed within the housing. The invention includes a method for in situ testing of a shear load sensing system for a mechanical system.

The invention discloses a switching value signal processing method. An analog output signal of an optical coupler in a switching value signal processing device is connected to one path of Analog to Digital Converter ADC input end connected with a central processing unit CPU; actions corresponding to different direct current rated voltages input by the optical coupler and a return threshold value are pre-stored in an nonvolatile memory; and the CPU performs analog sampling on an output signal of the optical coupler, and the obtained sampling value is compared with the preset rated voltage action and the return threshold value input by the optical coupler in the nonvolatile memory so as to obtain the actual state of the switching value, namely the switching value is 1 or 0. The analog output signal of the optical coupler and an output signal of a temperature measuring chip for measuring the working temperature of the device cabinet are respectively connected to ADC input pins of the CPU; and the actions of different direct current rated voltage and the return threshold value are pre-stored in the nonvolatile memory E2PROM, and the obtained sampling value is compared with the regulated preset action and the return threshold value of the E2PROM, and the actual switching state is obtained.

The invention discloses a drive device based on a gas-liquid combination spring and a valve actuator. The drive device comprises the actuator and a power cylinder. The power cylinder is installed on the actuator and provided with the gas-liquid combination spring. The gas-liquid combination spring comprises a pressure container tank. A gas input opening is formed in the upper end of the pressure container tank. A compressed gas cavity is formed in the upper portion in the pressure container tank, and a hydraulic oil cavity is formed in the lower portion of the pressure container tank. The compressed gas cavity is filled with compressed gas. The hydraulic oil cavity is filled with hydraulic oil. A hydraulic oil outlet is formed in the lower end of the pressure container tank. The gas-liquid combination spring with the same function replaces a traditional metal spring or a metal spring cylinder only serving as a valve actuator. The structural design, the manufacturing technology, site replacement, breakdown maintenance, the actuator drive valve application efficiency and the work reliability of the gas-liquid combination spring are improved greatly, and the manufacturing cost and the installing work difficulty are reduced greatly.

The invention discloses a safety protection and control system for a closed space in an acidic etchant gas environment. The system integrates acidic etchant gas purification, positive pressure protection, alarming and oxygen self-supply, comprises five main parts, namely an acidic etchant air filtering system, an air-conditioning system, a control center, a main-control box and an oxygen self-supply system, and is applicable to safety protection for personnel and equipment in a closed space in the environment of any of acidic etchant gases of sulfur dioxide, hydrogen chloride, nitrogen oxide, hydrogen sulfide, chlorine gas, sulfuric acid, hydrochloric acid, nitric acid mist. As for an acidic etchant gas with the initial concentration of 500-2,000 ppm, the effective protection time is 30 minutes at least and 180 minutes at most; even when the acidic etchant air filtering system is in a complete failure, the closed space can keep an excess pressure for 30 minutes through the oxygen self-supply system, and be evacuated to a safety zone on the condition that the closed space remains in operation.

The invention relates to a silica film all-in-one keyboard which comprises a face plate layer, a lower substrate layer with a film circuit, an upper substrate layer with electric conduction wafers and an insulation interlayer. The face plate layer comprises a polyester film layer and a silica gel layer below the polyester film layer, the polyester film layer is connected with the silica gel layer in a hot-press mode, a plurality of upwards-plump keys on the polyester film layer are connected with corresponding upwards-plump keys on the silica gel layer, the plump heights H of the keys on the polyester film layer are 0.5-1.0mm, the lower portion of the silica gel layer is connected with a sealing gasket layer through a peelable glue layer, the sealing gasket layer is fixedly connected with the upper substrate layer, the upper substrate layer is fixedly connected with the lower substrate layer through the insulation interlayer, protrusions corresponding to the keys on the polyester film layer are arranged on the upper substrate layer, and the electric conduction wafers at the bottoms of the protrusions correspond to electric conduction strips on the film circuit. The silica film all-in-one keyboard is simple and reasonable in structure, capable of improving the hand feeling of the keyboard and small in pressing force, reduces labor intensity, brings convenience to replacement of the face plate layer, and reduces use cost of the keyboard.

The invention discloses a fabricated steel frame structure supporting joint and a connecting device thereof. The fabricated steel frame structure supporting joint comprises a supporting base and a first supporting joint, the first supporting joint is fixedly installed on the supporting base, the supporting base is used for being connected with a frame column or a frame beam, and the first supporting joint is used for being connected with an inclined support; the supporting base comprises a first end plate, a rib plate and a second end plate, the first end plate and the second end plate are arranged in parallel oppositely, and the first end plate and the second end plate are fixedly connected through the rib plate; the first supporting joint comprises two side wing plates, a supporting plate and two connecting plates; the side wing plates are vertically arranged on one side of the supporting plate, the included angle between the axis of the side wing plates and the axis of the rib plateis an acute angle, and the connecting plates are vertically arranged on the other side of the supporting plate. The structure is simple, and the size of each component can be machined and manufactured in an industrialized mode according to needs, field replacement is facilitated, interchangeability is good, standardized production is facilitated, transportation and installation are facilitated, and the building construction efficiency can be improved.

The invention discloses a vertical bar planting accurate positioning and drilling device and a construction method thereof. The positioning and drilling device comprises reserved steel bars connectedto a bottom plate, a supporting unit installed at the upper portion of the bottom plate, a lifting unit connected to the upper portion of the supporting unit, a positioning and drilling unit connectedon the lifting unit and a dust absorption unit connected between the supporting unit, the lifting unit and the positioning and drilling unit. According to the vertical bar planting accurate positioning and drilling device and the construction method thereof, when construction is performed, by means of the arrangement of the positioning and drilling unit, steel bar holes needing vertical bar planting can be accurately positioned and punched; by means of the arrangement of the dust absorption unit, targeted treatment is conveniently performed on dust generated in the drilling process, and by means of the section design of a dust absorption pipe, different dust absorption treatment can be performed according to the amount of the dust removal quantity; by means of the arrangement of a liftingrack, manual control can be performed according to the punching depth, and the punching requirements of different heights are met; and by means of the arrangement of the supporting unit, on the one hand, a base bearing foundation is provided, on the other hand, convenient and fast moving and positioning can be performed at the construction site through castors.

The invention relates to a rotary type safety magnetic positioning logging instrument. The logging instrument is formed by sequentially connecting a headstall assembly, a rotary balancing assembly anda magnetic positioning assembly. The headstall assembly comprises a torpedo spring, a torpedo spring seat, a fishing socket and a torpedo single-taper sleeve. The rotary balancing assembly comprisesa rotary upper connector, a threaded ring, a wire passing barrel, a female pin sleeve, a female pin, a single-core sliding ring, a hollow shaft, a rotary fixed connector, a rotary movable connector, abalancing shaft barrel, a balancing piston, a balancing cylinder, a pressure bearing disc and a single-core connecting base. The magnetic positioning assembly comprises an upper magnetic steel cylinder, a front magnetic outer cylinder, a coil rack, magnetic steel, a cement resistor, a lower magnetic steel cylinder and an adapter. The logging instrument integrates the functions of a safety headstall, a rotary short-circuit logging instrument and a magnetic positioning logging instrument, and is reasonable in structure, small in length, light in weight, safe and reliable, and convenient to maintain.