10results about How to "Flexible deformation" patented technology

The invention discloses a preparation method of a perovskite quantum dot two-dimensional array. Comprising the following steps: S1, preparing a precursor solution A; s2, synthesizing perovskite quantum dots; s3, centrifugally purifying the perovskite quantum dots once; s4, self-assembling perovskite quantum dots into a quantum dot two-dimensional array through light induction; and centrifugally purifying the perovskite quantum dot two-dimensional array once. Compared with traditional monodisperse perovskite quantum dots, the two-dimensional perovskite quantum dot array structure provides a more ordered and efficient path for charge transmission, energy loss in the transmission process is reduced, meanwhile, the ordered arrangement mode can enhance the stability of the structure to a certain extent, the influence of external factors on the optical performance is reduced, and the optical performance is improved. The unique structure is beneficial to improving the quantum yield of luminescence, the optical band gap can be more accurately regulated and controlled, and luminescence with specific wavelength is realized; the array structure enables the material to have better mechanical performance and adapt to more application scenes.

The utility model belongs to the technical field of power transmission cable, disclose a kind of high-rise building pre-branch flexible bus, including main cable, branch cable, C type clamp connecting piece, branch junction box and fixed clamp;The main cable is equipped with multiple branch points along length direction;The first conductor in the main cable is electrically connected at branch point with the end of the second conductor in the branch cable;The outer peripheral wall of the first conductor of the branch point of the main cable is arranged with the end of the second conductor wrapped by the C type clamp connecting piece;The end of the branch point and branch cable is arranged with the branch junction box wrapped;The fixed clamp is arranged on wall surface, for fixing main cable and branch cable.The utility model's technical scheme is easy to lay installation, solve the problem of traditional hard copper row busbar installation difficult, greatly reduce the construction period, save cost, and good fireproof performance.

The utility model provides an internal thread connector which comprises a connecting pipe and caps, and the caps are detachably fixed to the two ends of the connecting pipe in an inserted connection mode. The cap comprises a cap body and an inner pipe, the inner pipe comprises a first end and a second end, the first end of the inner pipe is concentrically fixed to the inner side face of the cap body, a round hole is formed in the cap body, the inner diameter of the round hole is the same as that of the inner pipe, and a sealing ring is further arranged in the cap body and arranged on the outer side of the inner pipe in a sleeving mode. The end of the connecting pipe abuts against the sealing ring, and threads are arranged on the inner wall of the inner pipe. Cracking caused by expansion caused by heat and contraction caused by cold during use is avoided, the detachable structure is beneficial to replacement when part of components of the internal thread connector are damaged, waste of resources is avoided, disassembly and replacement are fast, time waste is reduced, installation and operation are easy and convenient, and limitation of the space size of an installation area and the weight and size of the components is avoided.

The utility model belongs to the field of cooking utensils, and particularly provides a cooking utensil. An existing cooking utensil has the problem that a sealing ring is difficult to maintain stable sealing under different pressure environments. Therefore, the utility model provides the cooking utensil which comprises a machine body, a cover body and a sealing ring, wherein a cooking cavity is defined in the machine body and used for containing food; the cover body is rotationally connected with the machine body so as to open or close the cooking cavity; the sealing ring is installed on the cover body and used for abutting against the machine body in a sealed mode, and the cross section of the contact portion of the sealing ring and the machine body is in a shape like a Chinese character'shi ', so that the sealing ring can seal the high-pressure cooking cavity and can also seal the low-pressure cooking cavity. According to the utility model, the technical problems are solved.

The utility model relates to clothing field discloses an easily -expanding assault down jacket, including main part, the main part includes front piece, back piece and collar, the front piece and back piece present fixed connection, the upper portion fixed connection of front piece and back piece has the collar, the both sides fixed connection of main part has the sleeve, the one end of sleeve near main part is provided with the expansion part on, a plurality of expansion sheets are fixedly connected on the expansion part, the one end away from main part is provided with the cuff on the sleeve, through setting up expansion part and fixedly connecting a plurality of expansion sheets in the one end of sleeve near main part, and expansion sheet is accurately distributed in the shoulder and underarm key activity area of user, has greatly reduced the constraint of sleeve to upper limb activity in the process of user's movement, fully releases the activity amount.

The utility model discloses a grinding wheel wear detection device, relates to the technical field of grinding wheels, and aims to solve the technical problem that the blockage wear degree cannot be visually observed in the conventional wear detection, and the grinding wheel wear detection device comprises a detection cylinder which is of a conical structure of which the diameter is gradually increased from top to bottom, and an outer connecting frame is arranged above the detection cylinder; a driving motor is mounted at the top of the outer connecting frame, a plurality of connecting rods are arranged at the lower half part of the detection cylinder, the bottom ends of the connecting rods are connected with a plug removing structure, the plug removing structure comprises a plurality of elastic connecting rods, a first removing ball is arranged at the bottom of each elastic connecting rod, and a plurality of shaft side removing pieces are arranged on the periphery of each first removing ball; the shaft side removing part reciprocates in the axis direction when matched with the elastic connecting rod to fluctuate up and down, and a blowing and gathering structure is further arranged in the detection cylinder. When the grinding wheel cleaning device is used, sweeps on the surface of a grinding wheel can be cleaned, an operator can visually observe the quantity and distribution of the sweeps, the blockage and abrasion degree of the grinding wheel can be rapidly judged, and a quantitative basis is provided for subsequent adjustment.

The invention relates to the technical field of heat exchange, and provides a loop heat pipe, a loop heat pipe reactor and a heat exchange system. The loop heat pipe comprises an evaporation section, a steam pipeline, a condensation section and a liquid pipeline which are sequentially communicated to form a circulation loop, the circulation loop is used for heat exchange fluid to circularly flow, a fuel rod and a liquid absorption core are arranged in the evaporation section, and the heat exchange fluid in the evaporation section can exchange heat with the fuel rod through the liquid absorption core. According to the loop heat pipe, by improving the structure of the heat pipe, the heat exchange efficiency between the fuel rod and the heat exchange fluid is improved, the condensation section of the loop heat pipe can be flexibly deformed and is convenient to bend and machine, and compact and efficient heat exchange coupling between the loop heat pipe and a thermoelectric conversion system can be achieved.

The utility model relates to a deformable bolt clamping tool which comprises a handle sleeve (1) and a handle (2) which are nested with each other, one end of the handle (2) axially moves along the handle sleeve (1) and is locked and fixed through a fastening screw (3), the other end of the handle (2) is provided with a handle adapter hole (2a), and the handle adapter hole (2a) is connected with a connecting bent rod (4); one end of the connecting bent rod (4) is connected with a handle connecting hole (2a), the other end of the connecting bent rod (4) is connected with a clamping head (5), a clamping head transfer hole (5a) is formed in the clamping head (5), a limiting clamping device (6) is arranged between the connecting bent rod (4) and the handle connecting hole (2a) or between the connecting bent rod (4) and the clamping head transfer hole (5a), and a clamping hole (5b) used for clamping a bolt is further formed in the clamping head (5). The bolt clamping device has the advantages that the bolt clamping device can extend into a narrow internal space of a product to clamp a bolt for operation, can adapt to different narrow spaces of different products, and is convenient to operate and use and high in universality.

The utility model belongs to the field of vehicle body suspension, and provides an electric vehicle limiting suspension device which comprises an axle, wheels arranged on the edge portions of the two sides of the axle, a fixing piece fixedly installed on the outer surface of the axle and close to the wheels, a plate spring fixedly installed on the top of the fixing piece, and a supporting bottom frame arranged on the upper surface of the axle and located above the plate spring. A supporting assembly is arranged in the middle of the top end of the plate spring and used for stably supporting the supporting bottom frame, a buffering mechanism is further arranged on one side edge of the supporting bottom frame and used for buffering and supporting the compartment, the buffering mechanism comprises a fixing groove, the fixing groove is formed in one side edge of the supporting bottom frame, and supporting shafts are installed in the fixing groove side by side. The supporting rubber piers are arranged at the top ends of the plate springs and fixed to the connecting plates at the bottom end of the supporting bottom frame through the iron plates, the weight of a carriage can be effectively borne, a stable supporting foundation is provided for the whole suspension device, and structural damage caused by uneven bearing is reduced.