35results about How to "Avoid working at the same time" patented technology

The present invention relates to a heating circuit automatic control method and device and a washing machine, wherein the heating circuit automatic control method includes: acquiring the total detection value of predetermined parameters to be tested in each heating circuit in at least two heating circuits; combining the total detection value with the Predetermined threshold value is compared; If the comparison result indicates that the total detection value is greater than the predetermined threshold value, the control part of the heating circuit stops working or controls each of the heating circuits to stop working, otherwise, does not change each of the heating circuits. The current working state of the circuit. The invention avoids damage to equipment caused by excessive load, eliminates potential safety hazards, and improves overall safety performance of the equipment.

Embodiments of the present invention provide a transconductance constant control circuit and a rail-to-rail operational amplifier, which relate to the technical field of integrated circuits. The transconductance constant control circuit includes a first switch, a second switch and a control unit, the control unit is electrically connected to the first switch and the second switch, and one end of the first switch is electrically connected between the bias circuit and the first input unit , the other end of the first switch is grounded, one end of the second switch is electrically connected between the bias circuit and the second input unit, the other end of the second switch is electrically connected to a power supply, the input end of the control unit is connected to the first input unit The input end of the input terminal and the input end of the second input unit are all electrically connected, and the control unit is used to control the opening or closing of the first switch and the second switch according to the input signal, so that the first input unit and the second input unit One of the two operates normally, resulting in a constant transconductance of the rail-to-rail op amp.

The invention discloses a construction method for installing underground lattice column. The method includes the steps that a reinforcement cage of an underground diaphragm wall and a craning auxiliary cage are produced firstly, wherein the craning auxiliary cage comprises a main reinforcement and a plurality of longitudinal trusses vertically connected with the main reinforcement, a plurality of guide ribs are horizontally and symmetrically welded on the longitudinal trusses, and a guide groove is defined by the main reinforcement and the longitudinal trusses which are combined with the guide ribs; positions of the longitudinal trusses are adjusted so as to enable space defined by the longitudinal trusses combined with the guide ribs to be larger than the width of the lattice column to be installed in a direction perpendicular to the longitudinal trusses; a guide device is detachably fixed in the guide groove, and the top elevation of the guide device is flushed with the ground elevation; a hanging steel bar is welded at the top of the lattice column which is then craned through the hanging steel bar and placed in the guide device, and the hanging steel bar is fixed until the lattice column is craned to a designed elevation; and the guide device is dismounted, concrete is poured on the underground diaphragm wall, and the construction is completed.

The invention discloses a deployable reflecting surface device under the traction drive of a rope. The device disclosed by the invention mainly aims to overcome the defects of the existing reflecting surface device that the unfolding speed is too fast and the reflecting surface device is difficult to control and has low reliability. The device comprises a group of hauling ropes, a folding eye bar, a folding rib rod and a plurality of connecting joints, wherein a sealed circumferential hauling rope (7) penetrates through a ring structure formed by connecting an eye bar (1) and an eye bar connecting joint (2); radial hauling ropes (8) penetrate through a rib structure formed by connecting a rib rod (3) and a rib rod connecting joint (4); one end of the rib structure and one end of each radial hauling rope are connected with the ring structure and the circumferential hauling rope through a ring-rib connecting joint (5); the other end of the rib structure is connected with a rib tube connecting joint (6); and the radial hauling rope are combined to form a hauling rope at the rib tube connecting joint, and the hauling rope is connected with an external motor. The invention has the advantages of low surface density, steady and reliable unfolding process and adjustable profile precision and can be used as a reflector or converger to be arranged in space or on the ground.

The invention discloses a high-formwork support system for a roof. The high-formwork support system for the roof comprises a main body vertical structure, a plurality of lattice columns and a horizontal net rack platform fixedly arranged on the lattice columns. A plurality of horizontal pulling rods are connected between the lattice columns and the main body vertical structure. The lattice columns are connected with a base structure through a formed steel base. The horizontal net rack platform comprises a Bailey beam net rack and a steel bridge panel. The steel bridge panel is fully paved and fixedly arranged on the upper part of the Bailey beam net rack.