9results about How to "Safe open" patented technology

The utility model provides a lampshade convenient to disassemble and assemble, which relates to the technical field of lampshades and comprises a quick disassembly mechanism, the quick disassembly mechanism comprises a protective cover, a protective mechanism is arranged at the top of the protective cover, connecting plates are arranged on two sides of the inner wall of the protective cover, snap rings are arranged at the bottoms of the two connecting plates, and a supporting cover is arranged at the bottom of the protective cover. According to the protective cover, drilling or other machining does not need to be conducted on an installation surface in the installation process through the installed quick disassembly mechanism, damage to the surface of equipment is avoided, the appearance integrity of the equipment is kept, limiting is formed through clamping connection of the clamping ring and the clamping block, it can be guaranteed that the protective cover is stably fixed and not prone to loosening or shaking, and the protective cover is convenient to use. Meanwhile, operation is easy, additional tools are not needed, a user only needs to press the clamping ring and the clamping block to enable the clamping ring and the clamping block to be connected in a clamped mode, installation can be completed, and installation time and labor cost are saved.

The present invention provides a delivery robot comprising: a main body cover body including a storage part inside and a main body opening part in the front of the main body cover body; a door driven in a closed state in which the door covers the main body opening or in an open state in which the door opens the main body opening; the sliding shelf is positioned at the lower part of the accommodating part and is driven to slide back and forth; and a control unit that drives the door and the sliding shelf. When the door is open, the control unit drives the sliding shelf.

The present invention relates to a ventilation device, and more particularly, to a heat recovery ventilation device. The ventilation device of an embodiment of the present invention includes a housing into which outdoor air and indoor air flow, an electric heat exchanger configured inside the housing to exchange heat between the outdoor air and the indoor air, and a door that opens and closes a lower side of the housing to enable the electric heat exchanger to be separated from the lower side of the housing, a rotation shaft of the door being configured inside the housing. According to the present invention, the door can be easily and safely opened.

The utility model relates to the technical field of cable sheaths, and discloses an easy-to-tear cable sheath structure, which comprises a shell assembly and an internal protection assembly, the shell assembly is formed by rotatably connecting an upper shell and a lower shell through a connecting shaft, a cylindrical cavity formed by closing the shell assembly accommodates the protection assembly and a cable body, and the protection assembly comprises a rubber layer. A dividing assembly is arranged in the shell assembly and comprises a pulling plate, a tearing rope and an easy-to-tear layer, the tearing rope is arranged between the easy-to-tear layer and connected with the pulling plate, the pulling plate penetrates out of the shell, and connecting assemblies composed of inserting hooks and inserting grooves are arranged at the two ends of the shell assembly. According to the utility model, the pulling plate is pulled to drive the tearing rope to tear the easy-to-tear layer, so that the sheath can be rapidly peeled off by hands, secondary damage to a cable caused by cutting of a cutter is avoided, and meanwhile, the rotary opening and closing of the shell assembly and the end part plugging structure realize repeated utilization and multi-section modular splicing of the sheath, and the cable maintenance efficiency is greatly improved.

The invention relates to the field of biological medicine, and provides a system for opening an in-vitro double-layer blood brain barrier by adopting ultrasonic response micro-nano particles. The system comprises the following modules: (1) an ultrasonic response micro-nano particle incubation module; (2) an ultrasonic intervention module; according to the system, an open blood brain barrier model is formed by a method for opening an in-vitro double-layer blood brain barrier through ultrasonic response micro-nano particles. The model can be used for quantitatively analyzing the blood brain barrier crossing efficiency of various drugs, is beneficial to screening and optimizing drug candidate compounds suitable for ultrasonic enhanced administration, and provides a basis for clinical transformation application.

The application provides an underwater butt joint reinforcement method in a high water pressure and strong permeation stratum, relates to the field of shield construction, is suitable for underwater butt joint engineering of two large-diameter shield machines, has high safety for high water pressure and strong permeation strata, effectively meets special working conditions of limited underwater construction space, and specifically comprises the following steps: step 1, a plurality of radial grouting holes are arranged in a middle shield of the shield machine, a water stop curtain is formed around the shield machine through radial grouting, and a closed construction environment is provided for subsequent construction; step 2, a plurality of groups of inclined grouting holes are pre-buried on the shield shell, advanced grouting reinforcement is carried out, and the stratum is improved to facilitate the formation of a frozen wall; step 3, after the advanced grouting is completed, a freezing pipe is inserted into the inclined grouting hole to carry out freezing reinforcement; step 4, a pressure relief hole is reserved on the shield machine, the pressure relief hole is inclined through a shield air bubble bin, and the pressure relief hole is used to control the frost heaving force and the frost heaving amount; and step 5, after the freezing is completed, whether water leakage occurs is observed through the pressure relief hole to detect the freezing quality.

This utility model discloses a vehicle door latch, comprising an upper housing and a lower housing arranged opposite to each other. The upper housing has a first hook, and the lower housing has a rotating plate rotatably mounted thereon. A second hook, corresponding to the position of the first hook, is fixed on the rotating plate. A tension spring is connected to the rotating plate, with its other end connected to the lower housing. The upper and lower housings are respectively fixed to the exterior of the vehicle door and body. The first and second hooks interlock to achieve the opening and locking of the vehicle door. Furthermore, the tension of the spring prevents the second hook from easily rotating and disengaging from the first hook, thus preventing the door from closing automatically due to strong winds. This ensures that the latch has strong locking and limiting performance, making the opening and closing of the vehicle door more reliable and safe.

The utility model belongs to the field of valves, and particularly discloses an eccentric semi-ball valve which comprises a valve body and a semi-ball valve clack. An inlet, a valve cavity and an outlet which are communicated are formed in the valve body, the semi-ball valve clack is located in the valve cavity, the outer side of the semi-ball valve clack is detachably connected with a first sealing piece, and the semi-ball valve clack rotates to be used for communicating or closing the inlet and the outlet; a valve port communicated with the valve cavity is formed in the valve body, an upper valve seat is fixedly connected to the valve port, a valve cover is detachably connected to the top of the upper valve seat, a valve rod is arranged on the valve cover in a penetrating mode, a driving assembly used for driving the valve rod to ascend and descend is arranged on the valve cover, a liftable sealing valve seat is arranged in the upper valve seat, and the valve rod ascends and descends to drive the liftable sealing valve seat to ascend and descend; after the eccentric semi-ball valve is completely opened, the liftable sealing valve seat descends to abut against the semi-ball valve clack for sealing, so that a closed cavity is formed between the valve deck and the semi-ball valve clack, and the first sealing piece is located in the closed cavity. By means of the semi-ball valve, the sealing ring on the semi-ball valve clack can be replaced when the valve is in an open state.