6results about How to "No delay" patented technology

The utility model relates to a kind of off-road stacking vehicle's wheel mounting mechanism.It solves the technical problems that the existing conventional fixing mode is prone to cause wheel shaft to rotate or axial movement, etc.It includes wheel frame, the one end of wheel frame has first wheel mounting plate and second wheel mounting plate, first wheel mounting plate and second wheel mounting plate are rotatably provided with wheel body between, wheel body center is rotatably provided with wheel shaft body extending to the outside of wheel body through bearing body, one end of wheel shaft body is arranged in first mounting hole on first wheel mounting plate and is rotatably connected with first mounting hole by anti-rotation rotating mounting structure, the other end of wheel shaft body is arranged in second mounting hole on second wheel mounting plate and is rotatably connected with second mounting hole by rotating locking mounting structure.The advantage is that: by the cooperation of the mounting hole and the shaft sleeve limiting portion on both sides, a firm clamping structure is formed, effectively preventing the axial movement of the wheel shaft assembly, ensuring that the wheel remains stable under impact and vibration.

The present application relates to finite time reduced dimension observer design method and chaotic communication system, belong to information security and chaotic communication field. In view of the defects of traditional asymptotic observer slow, time is uncontrollable, sliding mode method exists chattering and message signal pollution output is difficult to construct observer, the present application establishes the chaotic drive system containing message signal embedding, constructs the equivalent system without unknown signal, designs finite time reduced dimension observer based on observer matching condition and strong observable condition. Compared with the traditional asymptotic convergence observer method, the present application can realize the complete synchronization of chaotic system within the user preset time, adopts continuous control law without chattering, and the message signal can be accurately recovered through algebraic formula. The synchronization time of the present application is controllable, the convergence speed is fast, the recovery precision is high, and the robustness is strong, which is suitable for various chaotic secure communication scenes, effectively improves the communication real-time, security and engineering practicability.

The utility model relates to the field of gas electricity fast insertion, specifically discloses a kind of coupler device applied to gas electricity fast insertion wireless communication and power supply, including coupling module one and coupling module two, coupling module one and coupling module two can be mutually assembled, and wireless communication and wireless power supply are carried out between coupling module one and coupling module two assembled together;Avoid the circuit failure problem caused by the problems such as pin corrosion, pollution, distortion when pin connection;Realized quick connection, mute, beautiful, stable and reliable connection mode, with 60GHz V band transceiver. Gigabit ethernet short-range non-contact connection. Full duplex, horizontal transmission, control automatic negotiation. Used in pairs, no contact therefore no wear and tear and maintenance.

The application relates to the technical field of lighting power supply, and particularly discloses a non-isolated AC / DC dual-purpose seamless switching LED constant-voltage driving power supply circuit which comprises a commercial power input rectification filtering module, a non-isolated voltage reduction main constant-voltage module, a battery charging and discharging management module, an electronic seamless switching module and a lithium battery multiple protection module; the non-isolated voltage reduction main constant-voltage module is electrically connected with the commercial power input rectification filtering module, the battery charging and discharging management module and the electronic seamless switching module respectively; and the lithium battery multiple protection module and the electronic seamless switching module are electrically connected with the battery charging and discharging management module. The circuit design of the commercial power supply path and the lithium battery emergency discharge path shares a main power loop and a voltage sampling network, non-isolated voltage reduction main constant-voltage modules are matched with electronic seamless switching modules to realize non-contact seamless switching, the lamps do not flicker and do not extinguish in the whole process, the circuit anti-surge and anti-power grid fluctuation ability are improved, and the overall operation stability is improved.

This invention relates to the field of medical device technology and discloses a visual respiratory secretion negative pressure suction device, comprising: a collection bottle made of transparent material with a visible cavity, the top of which is provided with an air inlet and an air outlet for establishing a negative pressure passage and observing the secretion collection status in real time; and a switchable connector detachably connected to the air inlet, constituting an integrated dynamic tube diameter control unit, including a central seat and a rotary switching plate arranged coaxially. The central seat is provided with multiple sets of first through-holes along the axial direction, and the flow cross-section of each set of first through-holes decreases in a stepped manner. This device significantly improves the precise matching capability of secretion drainage. By using the selection of the suction tube diameter as a pre-forced step and forming a physical cascade match with the multiple sets of first through-holes in the switchable connector that decrease in a stepped manner, secretions of different viscosities can be drawn out under optimal flow resistance conditions.