The invention relates to a multi-shift stretcher for interiors of ships. The multi-shift stretcher comprises a tray, a framework housing, triangular wheel devices, hinge folding structures, guide wheel devices and connecting rod folding structures, wherein each triangular wheel device is connected with the corresponding hinge folding structure; one side of each hinge folding structure is fixed on a bulge; each guide wheel device is connected with the corresponding connecting rod folding structure. The multi-shift stretcher has the following advantages: the wounded are prevented from secondary injuries, flexible turning and transporting of the multi-shift stretcher in narrow channels are facilitated, and the multi-shift stretcher can be conveniently taken upstairs and downstairs, is convenient to operate, and low in time consumption, labor consumption and maintenance cost, can be flexibly transported in narrow ship channels, realizes body positioning when being used for carrying the wounded, effectively reduces secondary injuries and only requires one person to finish carrying and rescuing of the wounded in the internal channels of the ships during practical operation.

Multi-shift stretcher for interiors of ships

The invention provides a foldable emergency stretcher which solves the problem that a stretcher with double straight shanks cannot enter a high-rise resident elevator. The foldable emergency stretcher is made on the basis of a straight-shank type stretcher. The middle portion of the straight-shank stretcher is cut off, an arc-type connection rotating device, an insertion-type locating device and a limiting locating device are additionally arranged. When a patient in the high building has to enter and exit the high-rise elevation, the foldable emergency stretcher can be folded into an angle of 75-90 degrees so that the length of the stretcher can be shortened at once. Therefore, the foldable emergency stretcher can facilitate entering and exiting of the high-rise resident elevator, saves precious time for rescuing of the dying patient, and fundamentally solves the difficult problem that the straight-shank emergency stretcher cannot enter and exit the elevator of the high building.

Foldable emergency stretcher

A calibration device for online fixed gamma detectors is composed of a detachable calibration device and a lifting bracket. The calibration device includes a front device shell and a rear device shell connected by hinges. A shift rod is arranged at the side of the rear device shell. A locating module and a calibration source body are respectively installed inside the front device shell and inside the rear device shell. The calibration source body is all enclosed in the rear device shell by sheet metal. The locating module includes an indicator light, a button switch, a digital display tube, a cross locator, a dry battery, and a ranging circuit. The indicator light is installed on the top of the front device shell. The button switch and the digital display tube are arranged on a side of the front device shell. The cross locator is arranged in the middle position of ray emission. The ranging circuit employs ultrasonic ranging. The calibration source body includes a mandrel, a rotary sleeve, a collimator diaphragm, and a plug. The ladder-like mandrel is fixed on a cover plate, and is filled with lead. A radiation source is arranged on the mandrel. The plug is arranged at the exit of the collimator diaphragm.

Calibration device for online fixed gamma detectors

The utility model relates to a foldable type dual-purpose stretcher vehicle capable of climping stairs and being pushed horizontally and belongs to life saving equipment. The dual-purpose stretcher vehicle is characterized in that one end of a front bed body of the stretcher vehicle is connected with a horizontal pushing handle through a locatable rotating shaft; the other end of the front bed body of the stretcher vehicle is connected with one end of a rear bed body of the stretcher vehicle through a hinge and a positioning pin; the other end of the rear bed body of the stretcher vehicle is connected with a trifoliate wheel set through a trifoliate wheel shaft; a front wheel locating rotating shaft is arranged at the bottom of the front bed body of the stretcher vehicle and is connected with a universal wheel through a rotatable support arm; a retractable arm is arranged between the rotatable support arm and the bottom of the front bed body of the stretcher vehicle; the retractable arm adopts a link mechanism; and a separation blade is arranged on the link mechanism. The foldable type dual-purpose stretcher vehicle can be pushed horizontally or climb stairs and can be folded when not in use so as to be carried convenintly and save space. The stretcher vehicle can futher cross a small barrier, can be used for rescuing only by one person, has the advantages of simple structure, pure mechanical design, simplicity and convenience in operation, and low cost, and can be widely applied to various emergency and rescue occasions.

Foldable type dual-purpose stretcher vehicle capable of climping stairs and being pushed horizontally

The utility model relates to an automatic landing gear of an electric vehicle, and belongs to an auxiliary parking tool. The automatic landing gear comprises a micro direct-current motor, a fixed clamp is fixedly mounted on the micro direct-current motor, an output shaft of the micro direct-current motor is connected with a screw, a nut is arranged on the screw, a clamping groove is formed in the nut, the fixed clamp is in rigid connection with a sleeve, a protrusion matched with the clamping groove of the nut is arranged on the inner surface of the sleeve, and a support rod is arranged between the screw and the sleeve and is in rigid connection with the nut. Rising and falling of the support rod are controlled via the motor to realize labor saving during parking of the electric vehicle. A support can move up and down freely by self-locking trapezoid thread transmission to set up a rear wheel of the electric vehicle so as to achieve the purpose of stable parking; moreover, the automatic landing gear of the electric vehicle is simple in structure, simple and convenient to operate, low in cost and widely suitable for parking of two-wheeled vehicles such as various electric vehicles and motorcycles.

Automatic landing gear of an electric vehicle

The utility model relates to a dual-purpose stretcher for stair climbing and flat push, which belongs to the field of lifesaving. The dual-purpose stretcher is characterized in that: a flat push handle is connected with a stretcher bed body through a revolving shaft; the end part of the stretcher bed body is provided with three impeller groups; the bottom of the stretcher bed body is provided with a front wheel positionable revolving shaft; the front wheel positionable revolving shaft is connected with a universal wheel through a rotatable support arm; a retractable arm is arranged between the rotatable support arm and the bottom of the stretcher bed body, and is a connecting rod mechanism; and the connecting rod mechanism is provided with a separation blade. When the dual-purpose stretcher is driven to walk on a flat ground, front and back wheel groups are landed simultaneously, so that the dual-purpose stretcher can be pushed flatly for walking; and when stairs or steps are met, the front wheel group is retracted, the stretcher is obliquely pulled by a person, and three wheels of the three impeller groups on the back part are alternatively contacted with stairs, so that stable climbing of stairs is realized. The dual-purpose stretcher can be carried across small obstacles, can be used for rescuing by one person, is simple in structure, is in a pure mechanical design, is easy and convenient to operate, is low in cost, and is widely suitable for various rescue occasions.

Xin Tan

Papers

Foldable type dual-purpose stretcher vehicle capable of climping stairs and being pushed horizontally

Automatic landing gear of an electric vehicle

Dual-purpose stretcher for stair climbing and flat push