35results about How to "Little change in structure" patented technology

The invention discloses an inserted chassis diagonal-brace structure of a tower crane and belongs to the technical field of the tower crane. The diagonal-brace structure of the tower crane comprises a base section, a chassis section and a diagonal brace, wherein the bottom end of the base section is vertically and fixedly connected to a crossed beam; the bottom end of the chassis section is fixedly connected to the top surface of the base section; the diagonal brace is arranged to be inclined to the crossed beam, the bottom end of the diagonal brace is fixedly connected with the crossed beam, while the top end of the diagonal brace is fixedly connected with the chassis section, a double-lug plate with a U-shaped structure and fixedly connected with the diagonal brace is arranged at the top end of the diagonal brace, and the inner width dimension of the U-shaped structure of the double-lug plate is matched with the width dimension of a main chord; the top end of the diagonal brace is sleeved on the main chord of the chassis section through the double-lug plate, and the top end of the double-lug plate is fixedly connected with the main chord of the chassis section through a connecting piece. The chassis section is reduced in overall structure dimension and strong in transportation convenience, and simultaneously, the stress condition at the connection part is improved and the weld joint quality requirement is effectively reduced. The diagonal-brace structure of the tower crane is simple and is easy to manufacture and low in manufacturing cost.

The invention relates to a compound jet pump based on the combination of center jet flow and annular jet flow. The compound jet pump comprises a working water pipe, a center nozzle, an annular nozzle,a water suction tube, a suction-in chamber, a throat tube inlet section, a throat tube, a diffusing tube and a water outlet tube. The compound jet pump further comprises a center nozzle control valveand an annular nozzle control valve. The center nozzle is arranged at the center of the annular nozzle. The center jet flow and the annular jet flow are combined. The compound jet pump solves the problems that a single center jet pump or single annular jet pump is low in efficiency, and the properties can be turned to be poor after working condition change. Compared with a traditional center jetpump and annular jet pump which are mostly used at present, the compound jet pump is small in structural change, the required parts are not greatly increased and technological processing can be achieved easily. The working efficiency is high, the problems which cannot be achieved by the traditional single jet pump are solved, and thus the application prospects are broad.

The invention provides a lithium battery liquid cooling box which comprises a casing, a flat heat pipe, a casing cover and a liquid cooler; the square casing comprises a base plate, two long side plates and two short side plates, and the base plate, two long side plates and two short side plates form a cavity for placing a lithium battery group; the flat heat pipe is placed in the bottom of the cavity, and includes a U-shaped seal pipe in the external and an imbibition core, a gas channel and a work liquid in the internal; the bottom of the flat heat pipe is placed on the base plate, the two sides of the flat heat pipe makes contact with the two long side plates respectively, and the flat heat pipe is used to transfer heat of the lithium battery group mounted in the upper to the two long side plates; the casing cover is detachably mounted on the casing, and is used to enclose the cavity; and the liquid cooling device is hollow and arranged surrounding the casing, and includes an inletand outlet, the cooling inlet enters the inside of the liquid cooling device via the inlet and flows out of the outlet, and the liquid cooling device is used to cool the two long side plates.

The invention discloses a method for preparing strontium-rich activated carbon by the aid of hydrothermal processes. The method includes steps of a), pretreating activated carbon, to be more specific,placing the proportioned activated carbon in diluted edible hydrochloric acid solution, heating the proportioned activated carbon in the diluted edible hydrochloric acid solution, carrying out impurity removal cleaning, further carrying out suction filtration, repeatedly washing the activated carbon, washing off surface residual acid liquid, boiling the activated carbon by water, then repeatedlyrinsing the activated carbon until the pH (potential of hydrogen) value of the activated carbon is 6.5-8.5, placing the activated carbon in drying ovens and drying the activated carbon for standby application; b), impregnating and loading strontium salt, to be more specific, slowly adding the pretreated proportioned activated carbon into impregnation liquid with diffusing agents and coupling agents, impregnating and stirring the activated carbon for 10 min, then adding strontium salt solution into the impregnation liquid and uniformly mixing and stirring the strontium salt solution and the activated carbon with each other in the impregnation liquid; c), carrying out hydrothermal reaction procedures, to be more specific, placing impregnated activated carbon solution in hydrothermal reactionkettles, keeping the temperatures constant for 2-6 hours after the hydrothermal reaction temperatures are increased and reach 130-250 DEG C and the pressures of the reaction kettles reach approximately 1MPa, carrying out still standing and temperature reduction after reaction is completely carried out, carrying suction filtration and cleaning, washing off surface residual impregnation liquid, then placing reaction products in drying ovens, and drying the reaction products at the temperatures of 120-150 DEGC to obtain the impregnated-hydrothermal strontium-rich activated carbon.

The invention discloses a full-duplex Internet of Things base station based on a half-duplex baseband chip. The base station comprises a processor, a receiving module and a transmitting module, wherein the receiving module comprises a first radio frequency switch, a low noise amplifier, a radio frequency front end and the half-duplex baseband chip that are sequentially connected and configured ina receiving state; the transmitting module comprises a transceiver, a power amplifier and a second radio frequency switch in a transmitting state that are sequentially connected; the processor is connected to the half-duplex baseband chip of the receiving module through a bus to perform interaction between data and control instructions; and the processor is also connected with the transceiver of the transmitting module through the bus to perform the interaction between the data and the control instructions. By adopting the scheme of the invention, the defect that an existing Internet of Thingsbase station can only realize half-duplex communication can be solved, the full-duplex real-time communication can be realized, and the communication efficiency can be improved.

The invention provides a foldable electro-car. The foldable electro-car comprises an electro-car and a folding device, wherein the electro-car is steered by front wheels and driven by rear wheels and comprises a front part and a rear part; the front part is connected with the rear part by a center shaft; the front part is rotationally connected with the center shaft; the folding device comprises a remote control device, a control panel controlled by the remote control device, and a folding mechanism which is positioned inside the electro-car; the remote control device is used for sending an instruction for unfolding or folding the electro-car to the control panel; the control panel is used for controlling a motor in the folding mechanism to drive a hydraulic rod in the folding mechanism to extend or retract so that the electro-car can be unfolded or folded. The invention provides the foldable electro-car, wherein the front part of the electro-car can be lifted and partially contained in the rear part of the electro-car, so the floor area used by the electro-car can during parking can be reduced.

The invention relates to a power supply socket which comprises a casing, on which one or more groups of socket aperture units are arranged, and a power supply extension line connected with the casing and provided with a plug. The power supply socket is characterized in that a concave limit opening, around which the power supply extension line can be wound, is arranged on the left side part and the right side part corresponding to the left part respectively. A lifting handle composed of a lifting handle part and a shaft fixed to the middle part at the lower part of the lifting handle part is further arranged on the casing. The shaft is moveably inserted and limited on the upper surface of the casing. The casing can rotate relative to the axial direction of the shaft. The power supply extension line can enclose the casing and wind around the limit opening, so as to fold and accommodate the power supply extension line. When the power supply extension line is needed, the operator can only take hold of the lifting handle and pull the power supply extension line horizontally while driving the casing to rotate by 360 DEG relative to the shaft without manually twisting relative to the casing.

The invention relates to the field of hybrid vehicles, in particular to a hybrid powertrain and a hybrid vehicle. The hybrid powertrain comprises a motor transmission module and an engine, wherein themotor transmission module comprises a motor and a transmission; the motor is selectively in transmission connection with an input shaft or an output shaft of the transmission through a multistage gear transmission mechanism; and the engine is transmission connection with the input shaft of the transmission through a clutch in the transmission. By adopting the technical solution, the novel hybridpowertrain disclosed by the invention integrates the motor and the transmission into one module, and the motor can be selectively in transmission connection with the input shaft or the output shaft ofthe transmission through the multistage gear transmission mechanism. Therefore, compared with a conventional powertrain structure, the hybrid powertrain disclosed by the invention does not change much, and the torque of the motor can change torque output modes through the selective transmission connection so as to increase the torque output modes of the motor.

The invention discloses a sliding rack slow-ascending type bread toaster. A frame and a sliding rack are arranged in a housing of the bread toaster; the frame is used for mounting a toasting element and a guiding member of the sliding rack; a slow ascending machine core is arranged at the tail end of the sliding rack; the bread toaster further comprises a sliced bread bracket; a rack is arranged at the tail end of the sliced bread bracket; and the rack is engaged with the slow ascending machine core through a tooth surface. According to the technical scheme, a motor does not need to be used, the original structure is hardly changed, the problem of flying of small bread due to large tension force of a spring of the sliced bread bracket is solved through the arrangement of the slow ascending machine core, and the bread toaster has the advantages of simple structure, safety and reliability.