Abstract: A control method includes, in response to detecting that an external device is in a target positional relationship with an electronic device, adjusting a working parameter of a supporting assembly of the electronic device, so that the supporting assembly is in a normal working state. In the normal working state, the supporting assembly is able to support the electronic device in different postures.

Abstract: A method, system and device for programmed cell freezing is disclosed. The method includes: S1, acquiring a cooling rate k and a temperature distribution function T=a×h2+b×h+c of a heat preservation chamber containing liquid nitrogen; S2, controlling a cell preservation tube to lower in the chamber at a speed of v=(k-b)/2ah, and acquiring temperatures T1 and T2 inside and outside the tube at a same time and at a same height in real time during the lowering of the tube; S3, determining whether a difference ?t between T1 and T2 exceeds a preset temperature difference threshold, if yes, proceeding to S4, and if no, proceeding to S2 until the tube reaches a position corresponding to a preset temperature T0; and S4, controlling the cell preservation tube to stop until the difference ?t between T1 and T2 is less than or equal to the temperature difference threshold, and continuing S2.

Abstract: A support device includes a support structure, a carrier assembly, and an elastic assembly. The carrier assembly is configured to support a display device. The carrier assembly ascends and descends relative to the support structure. The elastic assembly is connected to the support structure and the carrier assembly and provides different support forces to the carrier assembly to support display devices of different weights.

Abstract: A downhole power drilling tool includes a flow distribution shaft, an outer pipe and a multi-stage eccentric gear driving mechanism which are coaxially arranged, the flow distribution shaft is suspended and supported in the outer pipe by the multi-stage eccentric gear driving mechanism.

Abstract: A touch module includes a substrate, a first horizontal touch electrode, a second horizontal touch electrode, a first jumper, and a first vertical touch electrode. The first horizontal touch electrode and the second horizontal touch electrode are disposed on the substrate at intervals along a first direction. The first jumper is connected to the first horizontal touch electrode and the second horizontal touch electrode, and has a first main portion and at least two first extending portions, in which the first main portion is between the two first extending portions in the first direction. The two first extending portions are respectively disposed corresponding to the first horizontal touch electrode and the second horizontal touch electrode. The first vertical touch electrode is disposed on the substrate, located between the first horizontal touch electrode and the second horizontal touch electrode in the first direction, and is electrically insulated from the first jumper.

Abstract: A touch module includes a substrate, a first horizontal touch electrode, a second horizontal touch electrode, a first jumper, and a first vertical touch electrode. The first horizontal touch electrode and the second horizontal touch electrode are disposed on the substrate at intervals along a first direction. The first jumper is connected to the first horizontal touch electrode and the second horizontal touch electrode, and has a first main portion and at least two first extending portions, in which the first main portion is between the two first extending portions in the first direction. The two first extending portions are respectively disposed corresponding to the first horizontal touch electrode and the second horizontal touch electrode. The first vertical touch electrode is disposed on the substrate, located between the first horizontal touch electrode and the second horizontal touch electrode in the first direction, and is electrically insulated from the first jumper.

Abstract: A full-metal dynamic-sealed concentrically-centered downhole displacement motor includes an outer tube, a stator fixed in the outer tube, a rotor rotatably connected in the stator, and a flow distribution shaft suspended in the rotor. When the rotor rotates, the plurality of circulation ports is alternately communicated with the flow distribution holes, and an accommodation space for flowing the drilling fluid is formed among the plurality of rotor copper rods; each of the circulation ports has a notch on the side of the rotor copper rod that is in communication with the accommodation space; the stator is provided with pressure relief ports for allowing the annular chamber and the accommodation space to communicate with each other, and the flow distribution hole and the pressure relief port are circumferentially arranged in a staggered manner.

Abstract: This application provides an all-metal downhole power drilling tool based on a multi-stage dual plunger eccentric gear mechanism, which includes a flow distribution shaft, an outer pipe and a multi-stage eccentric gear driving mechanism which are coaxially arranged, the flow distribution shaft is suspended and supported in the outer pipe by the multi-stage eccentric gear driving mechanism. This application provides a novel rotary plunger type power drilling tool hydraulically driven by drilling fluid. The plunger structure is high in processing precision, low in cost and good in plunger type movable sealing effect. A planetary gear train with an eccentric structure is adopted to transmit torque, improving the working efficiency of the power drilling tool. The power drilling tool driven by the multi-stage dual plunger eccentric gear mechanism is of an all-metal structure and can withstand a high temperature environment.

Abstract: A gas hot water heating device and a system with heating function are disclosed. The device includes a combustion device (1), an inlet (E) and an outlet (G) of a hot water pipeline (2), an inlet (I) and an outlet (H) of a heating loop (3), and a water tank (4). The device also includes a first heat exchanger (5), a second heat exchanger (6) and a third heat exchanger (7). A flue gas outlet (1-2) of the combustion device (1) is connected with flue gas passages of the first heat exchanger (5) and the second heat exchanger (6) in order and in series. A first water flow passage (5-1) and a second water flow passage (5-2) are arranged in the first heat exchanger (5), and the water tank (4) and the first water flow passage (5-1) of the first heat exchanger (5) are communicated between the inlet (E) and the outlet (G) of the hot water pipeline (2) in series. The second heat exchanger (6) and the third heat exchanger (7) can exchange heat with water in the water tank (4).

Abstract: A gas hot water heating device and a system with heating function are disclosed. The device includes a combustion device (1), an inlet (E) and an outlet (G) of a hot water pipeline (2), an inlet (I) and an outlet (H) of a heating loop (3), and a water tank (4). The device also includes a first heat exchanger (5), a second heat exchanger (6) and a third heat exchanger (7). A flue gas outlet (1-2) of the combustion device (1) is connected with flue gas passages of the first heat exchanger (5) and the second heat exchanger (6) in order and in series. A first water flow passage (5-1) and a second water flow passage (5-2) are arranged in the first heat exchanger (5), and the water tank (4) and the first water flow passage (5-1) of the first heat exchanger (5) are communicated between the inlet (E) and the outlet (G) of the hot water pipeline (2) in series. The second heat exchanger (6) and the third heat exchanger (7) can exchange heat with water in the water tank (4).

Abstract: The present invention provides a combined scale inhibitor and scale inhibiting device. The combined scale inhibitor contains organophosphorus filter materials, ceramic filter materials and polyphosphate filter materials. The organophosphorus filter materials are the granular filter materials of liquid organophosphorus scale and corrosion inhibitor while the said ceramic filter materials are the granular filter materials containing oxide ceramic powder. The said scale inhibiting device is comprised of a tank, a water inlet, a water outlet, an organophosphorus filter material layer, a ceramic filter material layer and a polyphosphate filter material layer in the said tank. The said organophosphorus filter material layer contains organophosphorus filter materials, which are the granular filter materials of liquid organophosphorus scale and corrosion inhibitor. The said ceramic filter material layer contains ceramic filter materials, which are the granular filter materials containing oxide ceramic powder.