9results about How to "Enough safe distance" patented technology

The invention belongs to the technical field of distribution network live-line work, and discloses a distribution network live-line drainage wire disconnection and connection non-contact electric lifting operating rod which comprises a wire, a drainage wire disconnection and connection device, a wire clamping device, a lifting device and a visual monitoring control device. Through the arrangement of the rack, the first hook, the gear and the second hook, an operator firstly installs a drainage wire body in the second hook, the first hook is hung on the outer surface of a wire through a guide rail rod, and after a second motor is started, a lead screw drives a first clamping block to ascend; a first clamping block and a first hook are matched to clamp a wire, at the moment, a first motor is started to enable a gear to rotate, the gear is meshed with a rack, so that the gear can ascend along the rack, and then a second shell drives a third shell to ascend; and the second universal joint drives the electric shooting gun head to move upwards.

An online slip ring grinding device and its method of use include a brush holder with a detachable grinding body adjustment device. The grinding body adjustment device includes a sliding sleeve insert connected to a support tube arm, which in turn connects to a brush box. The brush box contains a grinding body and a first spring, with the grinding body cooperating with the first spring. A brake rod is located within the support tube arm, its middle section connected to the support tube arm via a second fixing pin. One end of the brake rod has a grinding body braking protrusion for braking the grinding body, and the other end has a trigger protrusion that cooperates with a cam. The cam is mounted on an operating rod, with a handle at the end of the operating rod. A second spring is located on the brake rod for resetting the brake rod. This invention enables grinding of slip rings without shutting down the equipment, ensuring a sufficient safe distance between the operator and the slip ring device, thus enhancing operator safety.

The application relates to the technical field of lead frames, and discloses a pre-electroplated lead frame and a preparation method thereof, which comprises an integrated card frame, a plurality of lead frame bodies are fixedly connected in the integrated card frame, a plurality of bending support pieces are arranged, a circular buckling piece is arranged on the integrated card frame and corresponds to the bending support pieces, the bending support pieces are connected with the circular buckling pieces, the bending support pieces rotate along the center points of the circular buckling pieces, the top end and the bottom end of the bending support pieces are support end faces, the lead frame bodies are supported by the bending support pieces when the surfaces of the lead frame bodies are treated, the integrated card frame is taken, a plurality of integrated card frames can be stacked by the bending support pieces, and the two bending support pieces corresponding in the vertical direction can abut against each other, and the technical scheme can solve the problem that the lead frame before resistance operation is inconvenient to take and place when the surface of the lead frame is treated.

The utility model relates to a vertical multi-angle insulating shield base of electrical equipment and a protective member thereof, the vertical multi-angle insulating shield base comprises an upper covering plate, a lower covering plate and a rotator, the upper covering plate and the lower covering plate are rotatably installed together through the rotator, and when the upper covering plate and the lower covering plate are in butt joint, the rotator is fixed on the upper covering plate and the lower covering plate. A sealed space is formed between the upper covering plate and the lower covering plate, a base mounting space is formed at the bottom of the sealed space, and a connecting part mounting space is formed on the side face of the sealed space. Through the arrangement of the upper covering plate, the lower covering plate, the rotator, the sealing unit, the locker and other parts, a closed container is provided for follow-up injection of insulating materials, the structure is simple, operation is convenient, applicability is high, and waterproof and dustproof effects can be achieved.

A copper rod clamping device for shore bridge maintenance belongs to the technical field of shore bridge maintenance, and comprises a shell body and a locking hoop, two side walls of the shell body are respectively provided with a connecting port for installing the locking hoop, two ends of the locking hoop are movably arranged in the shell body in a penetrating manner through the connecting ports, and two ends of the locking hoop are connected with locking rods; the top end of the locking rod is connected with the end of the locking hoop, and the bottom end of the locking rod movably penetrates through the bottom face of the shell body and then is in threaded connection with a locking handle. The copper rod clamping device for shore bridge maintenance is reasonable in design, simple in structure, low in manufacturing cost and convenient to use, has enough safety distance, can reduce the risk of slipping out of the hand and the risk of causing personnel injury, and is suitable for popularization.

The utility model provides a kind of test paper bag, including bag body, it contains positive paper face and back paper face;Sealing inner tongue is connected to the upper end of back paper face, and inner tongue crease line is formed;Sealing outer tongue is connected to the upper end of positive paper face, and outer tongue crease line is formed.Inner tongue crease line is located below outer tongue crease line, both are parallel and arranged in upper and lower interval, form safety buffer interval.The vertical width of sealing inner tongue is greater than the interval, ensure secondary sealing coverage.Sealing outer tongue is equipped with folding angle close to outer tongue crease line, for guiding tool accurate cutting outer tongue crease line.The utility model improves opening security, secondary sealing reliability and operation convenience.

The invention belongs to the technical field of trailers, and particularly relates to a trailer chassis which comprises a frame. A plurality of pairs of Mecanum wheel systems; a plurality of pairs of unpowered traction wheel systems; each unpowered traction wheel system comprises a supporting mechanism, an unpowered traction wheel and a lifting adjusting mechanism. Rapid transition traction is performed through the unpowered traction wheel system under traction of a traction locomotive, middle and long distance consignment work is achieved, hanging work is completed through precise movement and positioning of the Mecanum wheel system in a narrow space, lifting adjustment is performed on the unpowered traction wheels through the lifting adjustment mechanism, and the lifting adjustment is completed. Therefore, the chassis can be controlled to ascend and descend, automatic switching of the two wheel trains can be achieved, the device can adapt to complex and changeable working environments, the device has the advantages of being low in equipment hanging working height, high in positioning precision, flexible, convenient to operate and high in transportation transition efficiency, the working efficiency of the whole device is improved, and the working efficiency of the whole device is improved. And the manual operation difficulty is greatly reduced.

The invention relates to the field of intelligent driving, in particular to a path planning method, device and equipment and a medium, and the method comprises the steps: determining a plurality of planning tracks in a target coordinate system according to a first coordinate of a vehicle and a second coordinate corresponding to at least one terminal point; other target object track confidence coefficients, the minimum transverse length and the minimum longitudinal length corresponding to the target planning track are determined; determining a cost value corresponding to the target planning track according to the track information corresponding to the target planning track, the self-vehicle information, and the track confidence coefficient, the minimum transverse length and the minimum longitudinal length of other target objects; and determining an optimal planning trajectory from the plurality of planning trajectories according to the cost values corresponding to the plurality of planning trajectories. According to the method, the minimum transverse length and the minimum longitudinal length are introduced into cost value calculation, it can be ensured that the sufficient safe distance is kept between the vehicle and other target objects, and the potential collision risk is effectively avoided; and determining an accurate and reliable optimal planning trajectory according to the cost values of the plurality of planning trajectories.

The utility model provides a floating type normal-pressure hydrogen storage photovoltaic power generation system, and the system comprises a normal-pressure hydrogen bag which is disposed on an idle water surface below or beside a photovoltaic cell panel. The hydrogen production machine is communicated with the normal-pressure hydrogen bag and the hydrogen fuel power generation device through a hydrogen pipeline, and photovoltaic electric energy is gathered and concentrated through a photovoltaic wire, so that the electric energy is converted into hydrogen for normal-pressure storage. According to the invention, the continuity and stability of power supply can be ensured, and a new low-cost technical path can be provided for replacing thermal power by photovoltaic power generation.