8results about How to "Increase load carrying capacity" patented technology

The utility model provides a building foundation pit support dewatering device, which relates to the technical field of buildings, and comprises a base and a working mechanism, the lower end of the base is fixedly connected with the working mechanism, a reinforcing component, a connecting rod and a pre-embedded plate, additional stability and supporting force are provided for the base, the firm connection of the whole structure and a foundation is ensured, and the service life of the base is prolonged. The precipitation assembly is combined with an auxiliary inclined plate, a precipitation groove and a filter screen, the water level in the foundation pit is effectively reduced, underground water is prevented from interfering with construction, smoothness of a precipitation system is ensured, the flow guide assembly reasonably distributes water flow after precipitation through a flow guide plate and a partition block, erosion to the periphery of the foundation pit is avoided, and the construction safety is improved. The stability of a construction site is protected, necessary adjustability and adaptability are provided through the foundation sliding assembly and the fixed supporting assembly, the device can adapt to variable construction environments and terrains, and the connecting efficiency of the device and other structures is further improved through the flexibility of the connecting assembly.

The shift register unit designed by the present invention comprises a first control switch connected to a first clock signal end, a first inverter, whose input end is connected to an input signal end through the first control switch to form the input end of the shift register unit, a second control switch connected to a second clock signal end, a second inverter, whose output end is connected to an output signal end to form the output end of the shift register unit, the output end of the first inverter is connected to the input end of the second inverter through the second control switch, the high level ends of the first inverter and the second inverter are both connected to a power supply, and the low level ends are both grounded, the output waveform is smoother at high voltage, and the rising edge and the falling edge are steeper, and the present invention can completely shift and register the input signal for one cycle, and the outputs of adjacent shift registers will not overlap.

The application discloses an axial electric excitation mixed magnetic pole motor and belongs to the technical field of power generation, power transformation or power distribution. The motor comprises a stator, a rotor, a permanent magnet, an armature winding, an inner magnetic yoke, an outer magnetic yoke and an excitation winding, and two kinds of structurally similar but different motors can be generated through different matching forms among the components. The inner and outer magnetic yokes arranged in the stator and the rotor provide a magnetic flux path for the axial excitation of the two kinds of motors. One structure has a wide range of magnetic adjustment effect, and the excitation winding is connected with currents in different directions to increase or decrease the magnetism; the other structure has a complementary magnetic adjustment fault tolerance effect, when any section has an armature winding short circuit fault, the excitation current is applied to make the whole rotor periphery of the section present the same polarity, greatly weaken the peak-peak value of the magnetic linkage intersected by the armature winding of the section, inhibit the short circuit current, and the polarity of the rotor core pole of the non-fault section adjacent to the fault section is enhanced, so that the peak-peak value of the magnetic linkage intersected by the winding of the non-fault section is improved.

The utility model provides an assembly type rapid building structure of a water conservancy service bridge, and relates to the technical field of bridge engineering. The structure comprises an upper layer, a middle layer and a lower layer from top to bottom. The upper layer comprises two groups of rectangular bridge frames, and anti-leakage cloth is laid on the bridge frames; the side edge of the bridge frame is provided with a side frame, and a concrete layer is filled above the anti-leakage cloth in a middle range defined by the side frame; the concrete layer is formed on the bridge frame through pouring, so that the load is effectively balanced, and the load bearing capacity of the bridge body is greatly improved; a stable matrix structure is constructed below the bridge frame in a mode that the first splice plates and the second splice plates are spliced in a staggered mode, the connection strength of the matrix in the horizontal direction is enhanced by means of the double-end studs and the U-shaped hanging lugs, and the bearing performance of the bridge body is further enhanced. The assembly type service bridge shows extremely high connection strength and can bear a large load; the problems that the connection strength between all parts of an existing assembly type service bridge is not high, and the existing assembly type service bridge cannot bear heavy loads usually are solved.

The utility model discloses a kind of multi-contact magnetic blow arc extinguishing structure, including base assembly, arc separation chamber and blow arc magnetic steel, the blow arc magnetic steel is detachably installed in arc separation chamber, and arc separation chamber and base assembly are slidably connected and clamped fixedly to form arc extinguishing structure, the base assembly and arc separation chamber are equipped with the arc separation grid corresponding to position, and arc extinguishing structure is assembled to the relay, and arc separation grid divides every group of contact of relay into separate arc separation space after the relay.The utility model can provide blow arc magnetic field and arc separation chamber for snap relay, accelerate to extinguish arc generated in the process of breaking large current load of relay, improve the load capacity of relay;Arc separation chamber and base assembly are simple and firm to install, reach the effect of limit stable, and the volume of blow arc magnetic steel is flexible and variable, different types of blow arc magnetic steel can be selected according to use environment, so that the load performance of relay can meet more application scenarios.

This invention discloses a repeatable locking mechanism based on disc spring unstable switching, including a support housing, a spindle, a motor assembly, a screw, a slider, a nut slider, a conical coil spring, a disc spring, and a self-locking mechanism. The invention also discloses a method for operating the above-mentioned repeatable locking mechanism, including: the motor assembly driving the spindle to rotate; the slider moving to a first driving position engaging with the upper screw, the spindle driving the upper screw to rotate via the slider; the upper screw driving the upper nut slider to move up and down, locking or unlocking the self-locking mechanism A; the upper screw driving the upper nut slider to continue moving downwards, after the conical coil spring undergoes torsional deformation, the nut slider pushes the slider downwards, causing the slider to move to a second driving position engaging with the lower screw, the spindle driving the lower screw to rotate via the slider. This invention enables selective locking and further improves the stiffness of the flexible arm.

The air detector with a positioning function disclosed in the present invention comprises a shell, a display screen, buttons and indicator lights are arranged on the shell, an air guide channel penetrating the shell is arranged on the side of the shell, a sensor group is arranged on the inner wall of the air guide channel, a circuit board is arranged in the shell, and the display screen, buttons, indicator lights and sensor group are electrically connected to the circuit board respectively; the present invention can accurately position the air detector, realize remote monitoring of staff, improve work efficiency, save manpower and material resources, and has extremely strong practicality.

The invention discloses a high-precision portable multi-channel bioelectricity acquisition system based on a dry electrode. The bioelectricity acquisition system comprises a plurality of integrated dry electrodes which are respectively arranged at a plurality of to-be-acquired parts of a human body; each integrated dry electrode comprises an acquisition dry electrode and a follower circuit, the acquisition dry electrode is used for acquiring a bio-electricity signal, and a data input end of the follower circuit is connected with a data output end of the corresponding acquisition dry electrode; a signal transmission feeder line with a shielding layer, wherein the signal transmission feeder line is connected with multi-path data output ends of the follower circuits; a multi-path data input end of the analog channel is connected with the signal transmission feeder line; a multichannel data input end of the multichannel high-precision analog-to-digital converter is connected with a multichannel data output end of the analog channel; the resolution of the analog-to-digital converter is greater than or equal to 24 bits; and the microprocessor is connected with the analog-to-digital converter. According to the invention, the signal-to-noise ratio of the signal acquired by the dry electrode is improved through the cooperation of all the components, and the quality and accuracy of the acquired signal are guaranteed.