30results about How to "Eliminate the risk of loss" patented technology

The invention relates to a rotor (103) for a turbine (100), comprising a plurality of rotor components (130) lined up in the axial direction and connected by means of a connecting rod (144), wherein a groove (152) which extends in the circumferential direction and is open in the axial direction is disposed on one of the rotor components (130), wherein a coupling element (154) running around the connecting rod (144) in order to support the connecting rod (144) is disposed in the groove (152). Said rotor is intended to enable particularly stable support of the connecting rod in order to prevent vibrations by technically simple means. For this purpose the coupling element (154) is disposed on a retaining element (150) connected to the connecting rod (144).

The invention discloses an anti-burglary locking-controlled ball check valve. The anti-burglary locking-controlled ball check valve comprises a valve body, a bonnet and a valve element, wherein the valve element is connected with a wrench through a valve stem, the valve stem is positioned in a filler bin arranged on the side of the valve body, and a limiting stop tongue for limiting the rotating angle range of the wrench is formed on the wrench; an external port of the bonnet forms a structure of an anti-burglary connector, and a check valve structure is formed on a fluid channel of the bonnet; and a locking screw of which the head is provided with a prismatoidal tightening structure is arranged between the limiting stop tongue and the outer wall of the filler bin of the valve body. The locking screw is used for locking the wrench through the outer wall of the filler bin, and the wrench is unlocked when the locking screw is only separated from the outer wall of the filler bin or the limiting stop tongue. The anti-burglary locking-controlled ball check valve has the advantages that locking and burglary prevention can be effectively carried out, the mounting distance is fixed, and hidden leaking points are few; the locking screw is free of missing risks; and when the anti-burglary locking-controlled ball check valve is used in a household fuel gas pipeline, the trouble that running water flows back into the fuel gas pipeline due to the wrong connection of the gas pipeline and a water pipeline can be effectively eliminated.

The frame has a face (10) provided with a tenon (20) terminated by two tabs (22) bent at right angle. A leg (30) includes two tabs (32) bent at right angle to come against the tabs of the tenon, where each tab of the leg is provided with a bore (33) to receive a hinge pin (41) whose ends (411, 412a) meet the tabs of the leg and the tenon. A wedge (42) is installed between the hinge pin and inside of the tenon to support the hinge pin between the tabs of the leg and the tenon, where the wedge is retained by the hinge pin.

The invention discloses a portable terminal machine, which comprises the following parts: bulk, display on the bulk, keyboard seat to rotate at certain angle in the bulk, card groove on one side of keyboard seat with opening shape to plug memory card, wherein the curved fault position is formed on the bulk corresponding to rotary radius of keyboard seat; another curve corresponding to curved fault position is formed on one end of keyboard seat and curved fault position; the card groove is set on the position opposite the curved fault position under non-rotary condition of keyboard seat corresponding to bulk.

A connection mechanism between an ultrasonic scalpel and a transducer and an ultrasonic scalpel adopting the connection method. The connection mechanism of the present invention includes: a tightening turntable, which is a rotating body structure, and an ultrasonic knife is sleeved on the axis; one end of the tightening turntable is provided with a thread or a snap-fit ​​structure, which is used to connect with the handle part of the ultrasonic knife containing the transducer, The other end is a limiting plane, which is provided with a number of grooves for matching with the torque pins installed on the rotating cap; the rotating cap is a rotating body structure, and the axis forms a through hole for the ultrasonic knife to pass through; The side facing the tightening turntable is provided with several torsion pins protruding from the surface supported by springs, and the torsion pins can compress the springs to retract the surface under the action of force. The connection mechanism of the present invention is integrated with the ultrasonic knife, which saves the operation steps of installation and removal, eliminates the risk of loss, has stable and reliable torque values, and has a longer service life.

The invention discloses a rail wheel synchronous control device for a traction power test device of a rail transit vehicle. An accompanying test motor is connected to one side of each rail wheel; a sensor is arranged between each rail wheel and an output shaft of each accompanying test motor; an accompanying test converter is connected to each accompanying test motor and is connected with a signal acquisition control unit arranged on the field; the signal acquisition control units are one or more circuit boards or circuit units arranged inside the accompanying test converters or signal acquisition controllers arranged outside the accompanying test converters; and the signal acquisition control units are used for receiving control signals from the sensors and / or other signal acquisition control units, and the control signals are integrally processed and then are outputted to the accompanying test converters. Dynamic work conditions of various motors are acquired on field in real time and are integrally processed by the signal acquisition control units for controlling various accompanying test converters, so that output rotating speeds and the torques of all motors can be enabled to be same, traction and brake work conditions of tested locomotives can be dynamically adapted and the synchronous control on the rail wheels can be realized more accurately.

A portable kit for storing a pen, according to the present invention, comprises a base on which a holder is formed, wherein the pen is held in the holder by being coupled to a coupling kit which is fastened to the holder and has a shape corresponding to that of the holder, and the coupling kit has formed thereon a grip which is pushed with a finger to eject the pen from the base or retract the peninto the base.

The invention discloses a network payment-based card-free metro ticket selling method, a network payment-based card-free metro ticket checking method, a terminal and a server. The ticket selling method comprises the steps of receiving registration information and ticket selection information of a user, and generating an order; feeding back the order to the terminal; receiving a payment mode selected by the user, wherein the payment mode includes deferred payment and immediate payment; if the payment mode is the immediate payment, judging whether an immediate payment request quantity exceeds a set threshold or not, and if the immediate payment request quantity exceeds the set threshold, setting payment requests with the quantity exceeding the set threshold to be in a queue waiting state, otherwise, executing a payment instruction; after the order is paid, sending a notification of payment success to the terminal; generating a two-dimensional code, and sending the two-dimensional code to the terminal; sending the registration information of the user and order information to a safety inspection server; if the payment mode is the deferred payment, judging whether the user is a user in a honesty database or not, and if yes, sending the two-dimensional code to the terminal; and if not, sending a notification of rejecting a deferred payment request to the terminal. The ticket selling and checking methods have the advantages of card-free ticket selling and checking.

The present invention relates to a mobile passport, a mobile passport generation system for generating same, and a mobile passport certification method. More particularly, the present invention relates to: a mobile passport which is generated by digitalizing passport information written in an actual passport, thereby eliminating the risk of losing the passport, and with which the certification ofa passport for a foreign tourist is carried out by simply scanning or inputting the digitalized passport information, thus increasing the convenience of a tax return or the like; a mobile passport generation system for generating the mobile passport; and a mobile passport certification method. To this end, a mobile passport, which includes a QR code including passport information, a photo writingunit, a country writing unit, and a manual certification number, is generated by using a mobile passport generation system which comprises a mobile passport generation unit, a password generation unit, a mobile passport management server, and a terminal, and the identity of a passport holder can be checked by checking the QR code, the manual certification number, a coupon number, and a tax returntransaction number associated with the generated mobile passport.

A data receiving method comprises the steps of establishing a configuration descriptor circular linked list containing two direct memory access (DMA) configuration descriptors; forming a circular receiving chain by utilizing a DMA chain type mode, setting a header as a current configuration descriptor and starting a DMA; responding DMA received data to finish interruption; reconfiguring the current configuration descriptor, resetting the state of an indicating bit according to the value of the indicating bit and the length of the received data and setting the next node as the current configuration descriptor; and waiting for interruption again. The invention effectively integrates the advantages of fixed-length transmission and head mark transmission and realizes random-length transmissionof data through utilizing the chain type DMA and dynamically collocating the DMA receiving length, thereby ensuring both the system load and the transmission efficiency and eliminating the risk of data loss. The invention also discloses a data receiving device, a data sending method and a date sending device.