10results about How to "Enables reusability" patented technology

The aromatherapy candle lamp comprises a lamp base, an aromatherapy assembly and an energy supply assembly, the aromatherapy assembly and the energy supply assembly are arranged in the lamp base, and the aromatherapy assembly is located above the energy supply assembly; the energy supply assembly comprises an installation clamping plate, a lithium battery and a connecting module, the installation clamping plate is connected with the lamp base, the connecting module is connected with the installation clamping plate in a clamping mode, a battery clamping position is formed in the installation clamping plate, the lithium battery is detachably installed in the battery clamping position and electrically connected with the connecting module, and the lithium battery is detachably installed in the battery clamping position and electrically connected with the connecting module. The lithium battery can also be used for charging an external power supply, and through the structural arrangement and cooperation of the mounting clamping plate, the lithium battery and the connecting module, the problem that a battery of an existing aromatherapy candle lamp needs to be replaced frequently is solved.

The utility model relates to the technical field of connecting pieces, and discloses a hollow nut and an expansion bolt assembly. The hollow nut comprises a nut body and a conical head which are integrally connected, an inner hole penetrating through the nut body and the conical head is formed in the hollow nut, and threads are arranged on the hole wall of the inner hole. The conical head is provided with a first end and a second end which are oppositely arranged, the first end is connected to the nut body, and the outer diameter of the first end is larger than that of the second end. According to the hollow nut and the expansion bolt assembly, by designing and improving the structure of the hollow nut, the technical problem that an expansion bolt component cannot be repeatedly used in the related technology is solved.

The invention discloses a mesoporous polydopamine nano composite material, a molecular imprinting electrochemical sensor and a preparation method and application thereof. The preparation method comprises the following steps: polishing the surface of a glassy carbon electrode; adding the mesoporous polydopamine nanocomposite material loaded with gold nanoparticles into water to prepare a dispersion liquid, dropwise adding the dispersion liquid to the surface of the glassy carbon electrode, and drying to obtain the glassy carbon electrode coated with the mesoporous polydopamine nanocomposite material on the surface; preparing the prepared glassy carbon electrode into a modified electrode through an electrochemical polymerization method; and preparing the molecularly imprinted electrochemical sensor from the prepared modified electrode through an elution method. The sensor prepared from the raw materials and the method has the advantages of simplicity in preparation, good selectivity, good reproducibility, high repeated utilization rate and the like, and realizes sensitive and specific analysis of colchicine in an actual sample.

The invention discloses a compact rock fracturing device and method based on CO2 phase state change. The compact rock fracturing device comprises a compact rock sample with a central through hole, and further comprises an injection module configured to inject fluid into the compact rock sample; the upper sealing assembly and the lower sealing pipe fitting are both arranged in the center through hole, the upper sealing assembly and the lower sealing pipe fitting are oppositely arranged, an open hole section is defined by the upper sealing assembly, the lower sealing pipe fitting and the center through hole, and fluid is injected into the open hole section; the temperature control module comprises a cold control unit and a thermal control unit, and the cold control unit and the thermal control unit are communicated into the open hole section; and the fluid monitoring module is used for monitoring the pressure and temperature of the fluid in the naked eye section. The fluid temperature and pressure alternating effect can degrade the mechanical property of the compact rock sample; the fluid phase state change induces the generation of dominant fracturing fractures, and the two synergistically act to achieve the purpose of strengthening the reconstruction of the compact rock sample.

The invention relates to the technical field of steel structure building suspended ceilings, in particular to an assembly type steel structure building suspended ceiling structure which comprises a lossless clamping mechanism arranged in a groove in the side edge of I-shaped steel and a batten assembly mechanism installed in the lossless clamping mechanism and transversely arranged in the groove of the I-shaped steel. The steel gap adaptation mechanisms are installed on the two adjacent lossless clamping mechanisms in the two pieces of I-shaped steel, and the ceiling battens are assembled on the batten assembling mechanism. The lossless clamping mechanism comprises a bearing pad. The two groups of lossless clamping mechanisms which are symmetrically distributed are arranged in the groove of the assembled I-shaped steel, the two groups of lossless clamping mechanisms are loaded in a matched mode according to the length of the I-shaped steel, and the two groups of lossless clamping mechanisms which are arranged are assembled through the cross beam. And two groups of steel gap adaptive mechanisms which are matched with two I-shaped steel gaps and are transversely arranged are used for fixing the four groups of uniformly distributed nondestructive clamping mechanisms in a rectangular structure, so that the problem of generation of a large amount of construction waste can be avoided while nondestructive assembly is performed on the surfaces of the I-shaped steel.

The utility model provides crude foil equipment. The crude foil equipment at least comprises an electrolytic bath and a cathode roller, at least part of the cathode roller is located in the electrolytic bath, and electrolyte is arranged between the surface of the side, facing the electrolytic bath, of the cathode roller and the electrolytic bath; the device further comprises an auxiliary cathode plate; the auxiliary cathode plate is fixed with the electrolytic bath, and the auxiliary cathode plate is made of titanium alloy. According to the utility model, the technical problem that copper is easy to deposit on the surface of the auxiliary cathode in the production process and the auxiliary cathode needs to be replaced regularly in the prior art can be avoided, so that the production cost can be reduced and the working efficiency can be improved at the same time.

The reusable rapid grouting connector comprises a ball valve, the right end of the inner surface of the ball valve is in threaded connection with a first steel pipe, a second steel pipe is welded to the right side of the first steel pipe, and a plurality of reserved grooves distributed at equal intervals are formed in the left end of the outer surface of the second steel pipe. The first steel pipe is in threaded connection with the right side of the ball valve, the output end of the grouting machine is in threaded connection with the left side of the ball valve, then the second steel pipe is inserted into the grouting steel pipe, the first steel pipe can integrally enter the grouting steel pipe under the cooperation of the open groove, and then the hoop is clamped at the left end of the grouting steel pipe; the first steel pipe and the grouting steel pipe are firmly connected under the cooperation of a screw rod, a nut and a mounting hole, a gap between the second steel pipe and the grouting steel pipe can be filled with an arc-shaped rubber plate under the cooperation of the arc-shaped rubber plate, a spring and a preformed groove, and the situation that a grouting head cannot be detached due to grout pollution does not exist; and repeated utilization of the grouting head is really realized.

The automobile lamp demisting device is arranged in an automobile lamp assembly, the automobile lamp demisting device comprises a device shell, the device shell is provided with a sinking cavity, the sinking cavity is used for containing a drying agent, a plurality of through holes are formed in the wall of the sinking cavity and used for allowing moisture in the automobile lamp assembly to pass through, and the device shell is provided with a first mounting surface; an annular reinforcing rib is arranged on the edge of the first mounting surface and is provided with a first mounting hole and a second mounting hole; the rear cover is detachably connected with the device shell, the rear cover is provided with a second mounting surface, the second mounting surface is attached to the first mounting surface to seal the sinking cavity, the rear cover is provided with a fixed buckle and an elastic buckle, the fixed buckle is connected with the first mounting hole in an inserted mode, and the elastic buckle is connected with the second mounting hole in an inserted mode. According to the automobile lamp demisting device, the device shell and the rear cover are detachably connected so that the drying agent can be conveniently replaced at any time, installation is easy and convenient, firmness and reliability are achieved, and the automobile lamp demisting device can be repeatedly used.

The present invention discloses a method for cleaning a surface enhanced Raman substrate and achieving reusability, which belongs to the field of molecular recognition and nano-preparation, and can clean the surface of a substrate without affecting the SERS activity of the substrate. The present invention targets a substrate with impurities and detection molecules, uses an atomic layer deposition technique to coat it with a uniform layer of oxide, and performs high-temperature annealing to decompose the pollutants on its surface, and finally removes the oxide coating on the surface by chemical corrosion, thereby obtaining a pure substrate, which can achieve the purpose of cleaning the substrate and making it reusable.