8results about How to "Without destroying the integrity" patented technology

The invention relates to the field of building materials, and particularly discloses ultra-high-toughness marble-imitated ultra-high-performance concrete and a preparation method thereof. According to the prepared ultra-high-performance concrete with ultra-high toughness, marble-imitated material and white system, the metakaolin is used as a synergistic dispersion matrix, the nano-scale cellulose fibers are fully dispersed in the matrix, the performance advantages of the nano-scale cellulose fibers can be fully played through the method, the agglomeration problem of nano-scale cellulose is solved, and the super-high-performance concrete with the ultra-high toughness, marble-imitated material and white system is obtained. The homogeneity of the concrete is improved. The bridging effect of the nanoscale cellulose fibers is more effectively exerted, so that the breaking strength and the toughness of the ultra-high performance concrete are greatly improved. The used synergistic dispersion metakaolin is white, the color of the concrete is not influenced after the metakaolin is doped, the prepared concrete is highly similar to marble, and the surface of the concrete is free of pores and defects. The application can effectively supplement application deficiency of a white ultra-high performance concrete synergistic dispersion system.

The present application relates to elevator technology field, specifically relates to a kind of elevator with hidden emergency device of car, including the car in hoistway, installation port is opened in the thickness direction through in car side wall, and rotatingly installed with display device in car inner wall.Display device blocks installation port, and power supply assembly, controller and speed sensor are embedded in display device.Display device is electrically locked between car, and electrically locked is used to lock display device and car.Car outside is provided with anti-falling brake mechanism, and the rear side of display device close to installation port is hinged with one end of pull rod assembly, and the other end of pull rod assembly is connected with the locking assembly of anti-falling brake mechanism after passing through installation port, and anti-falling brake mechanism has working state and locking state.In locking state, locking assembly locks anti-falling brake mechanism, and anti-falling brake mechanism does not hinder the lifting of car.

The utility model provides a window opening device in a curtain wall, and belongs to the technical field of curtain wall installation. The window opening device in the curtain wall comprises a unit frame, a sash frame assembly, a window sash assembly and a decoration strip. The decoration strip is connected to one side face of the unit frame, the fan frame assembly is installed in the first installation groove, one end of the first enclosure frame is rotationally connected to one side wall of the fan frame assembly, and the other end of the first enclosure frame can abut against the other side wall of the fan frame assembly, so that the first enclosure frame seals the second installation groove; a first heat preservation cotton plate and a first sound insulation flitch plate are arranged on the inner side of the first enclosure frame, the heat preservation and heat insulation performance of the device can be greatly improved, the sound insulation effect of the whole device is improved, meanwhile, the appearance is kept unchanged, and the indoor integrity is not damaged; the first sound insulation flitch is installed in the first enclosure frame, and maintenance is not needed in the later period.

The invention provides a high-pressure-bearing oxygen storage and supply system with a skirt hem.The skirt hem is tubular, the gas cylinder connecting end, used for penetrating and sleeving a composite gas cylinder, of the skirt hem is of an elastic deformation structure, the two ends of the composite gas cylinder are connected with the skirt hem in a clamped and embedded mode, and a cabin section connecting through hole is formed in the cabin section connecting end, used for connecting a front cabin and a rear cabin, of the skirt hem; the front cabin and the rear cabin are connected by adding the skirt edge, and the skirt edge and the composite gas cylinder are connected in a clamping and embedding manner, so that the connection requirement of the front cabin, the rear cabin and the composite gas cylinder is met, the integrity of the composite gas cylinder is not damaged, and the overall strength of the composite gas cylinder is ensured; a first-order composite layer is coated on the circumference of a composite gas cylinder, the composite gas cylinder is subjected to pressure-bearing enhancement in the radial direction and the axial direction in an annular and spiral combined mode, after the two ends of the composite gas cylinder are connected with skirt edges, a second-order composite layer is coated on the peripheries of the gas cylinder connecting ends of the first-order composite layer and the skirt edges, and the skirt edges and the composite gas cylinder are subjected to pressure-bearing enhancement. Therefore, the pressure bearing performance of the whole oxygen storage and supply system in deep water is met.

The application discloses an embedded air purification module and a laser, wherein the embedded air purification module comprises an air purification frame, an air exchange assembly and a filtering unit arranged in the air purification frame, and a connecting part arranged on the air purification frame. In the embodiment of the application, the embedded air purification module and the laser are adopted, the air purification module is embedded on the laser body, the structure has high integrity and occupies small space, the output of the to-be-purified gas to the filtering unit is realized through the air exchange assembly, the to-be-purified gas is purified under the filtering effect of the filtering unit, meanwhile, the connecting part and the positioning hole are inserted and matched, the overall assembly and disassembly of the air purification module are facilitated, the filter material and the fault parts in the air purification module can be replaced and maintained in time, the connecting part and the positioning hole are provided with a guide and a multi-stage sealing design, blind insertion self-alignment and movable plugging can be realized, high-level sealing of the purification channel is realized, and leakage is effectively prevented.

The present invention discloses a composite prestressed reinforcement system for a hydraulic concrete structure and a construction method thereof, which relates to the field of hydraulic concrete structure reinforcement systems. The composite prestressed reinforcement system for a hydraulic concrete structure comprises: a prestressed carbon fiber plate, the two ends of the prestressed carbon fiber plate are respectively fixed to the bottom end of a hydraulic concrete T-beam through a first anchoring mechanism and a first tensioning mechanism; and at least two prestressed steel strands are also included, the prestressed steel strands are symmetrically fixed below the partitions on the two sides of the bottom of the hydraulic concrete T-beam, one end of the prestressed steel strand is connected to the second tensioning mechanism, and the other end is connected to the second anchoring mechanism; the construction method comprises: laying out and positioning, base surface treatment; anchor installation; prestressed carbon fiber plate, prestressed steel strand installation and laying; glue preparation, application of carbon fiber plate adhesive; prestressed tensioning, locking; surface sealing treatment. The composite prestressed reinforcement system for a hydraulic concrete structure and a construction method thereof provided by the present invention can effectively increase the strength and rigidity of the structure, improve the bearing capacity of the structure, and at the same time reduce the deflection and deformation of the structure, and can play a role in reducing and sealing cracks.

This invention relates to a Bluetooth headset with dual listening modes, comprising a control unit, a stand, an over-ear headset, a storage drive unit, and an in-ear headset with an ear wire and an ear tip. The over-ear headset is mounted on the stand, and both the control unit and the storage drive unit are installed in the over-ear headset. The control unit is communicatively connected to both the over-ear headset and the in-ear headset. The ear wire is installed in the storage drive unit, with one end of the ear wire passing through the over-ear headset and connecting to the ear tip. The ear tip protrudes from the over-ear headset. Listening can be performed directly using the over-ear headset; alternatively, listening can be performed by pulling the ear tip to extend the ear wire from the storage drive unit, which then locks the current position. To remove the ear wire, the storage drive unit retracts the ear wire. It features a headset, a storage driver unit, and an in-ear headset. The storage driver unit and in-ear headset are integrated into the headset, achieving a dual-mode integrated design. The headband and neckband modes can be switched simply by extending or retracting the ear cable. This design retains the sound quality advantages and wearing stability of over-ear headphones while also providing the portability of neckband headphones.

According to the high-pressure oxygen storage and supply system for the underwater fuel cell system, the pipe part of a cable penetrating pipe penetrates through a composite gas cylinder and is tightly connected with the inner peripheries of a head-end bottle mouth and a tail-end bottle mouth of the composite gas cylinder in an abutting mode through a sealing piece, the cap part of the cable penetrating pipe is tightly connected with the tail-end bottle mouth through a locking piece, and a cable is arranged on the inner side of the head-end bottle mouth of the composite gas cylinder. A plurality of flow guide pipes are uniformly arranged around the cable penetrating pipe in the axial direction of the composite gas cylinder and are connected with the annular flow channel on the bottle mouth at the head end, a plurality of gas passing openings communicated with inner cavities of the flow guide pipes are formed in the peripheries of the flow guide pipes, and the two ends of the composite gas cylinder are connected with the skirt edges in a clamped and embedded mode; cabin section connecting through holes are formed in cabin section connecting ends, used for connecting the front cabin and the rear cabin, of the skirt edges; according to the system, reasonable area division of the cable penetrating pipe and the flow guide pipe and scientific space layout are achieved, the overall sealing performance is considered, in addition, through the design of the skirt edge, the system can serve as a functional component to provide a high-pressure gas source for a whole underwater device power system, and the system can also serve as a cabin section structure to be used.