Nanjing Chervon Industry Co., Ltd.

Huawei Technologies Co., Limited

Nanjing Tech University

Nanjing Chevron Industry Co., Ltd.

Nanjing Pioneer Awareness Information Technology Co., Ltd

Yang Li

Haishen Xu

Xiang Ling

Rui Zhang

Ronggen Zhu

Yufei Ren

Huangang Pang

Hongtao Ke

Yi Zhang

Rui Zhan

Haoyu Wang

Zhongquan Xu

Xin Huang

Rong Wang

Guang Li

Shuai Chen

Yongkang Wu

Longxiang Liu

Zhengying Shi

Weike Xin

Shu Li

Jie Lian

Pengchen Wang

Guoqiang Wu

Liewei Wang

Zhiwei Feng

Minjie Gao

Weihong Liu

Tingfen Ke

Qi Ling

Youqun Huang

Haidong Lu

Peiyao Li

Yiliang He

Baoqian Xia

An impact tool includes an output shaft for outputting torque, where the tightening torque of the output shaft to a workpiece is greater than or equal to 700 foot-pounds; and an impact assembly that provides an impact force to the output shaft. A main shaft ball groove includes a first ball groove that extends spirally about a main shaft axis and is concave on an outer surface and a second ball groove that extends spirally about the main shaft axis and is concave on the outer surface. An impact ball groove includes a third ball groove that mates with the first ball groove to accommodate the rolling ball and a fourth ball groove that mates with the second ball groove to accommodate the rolling ball. The included angle α between the first ball groove and the second ball groove is less than the included angle β between the third ball groove and the fourth ball groove.

Impact tool

A power tool includes a motor, a drive mechanism, and an impact mechanism. The drive mechanism is capable of driving a tip functional element to rotate about an output axis. The impact mechanism is capable of abutting against the tip functional element and capable of driving the tip functional element. The impact mechanism includes an impact rod, an impact power piece, and an impact block. The impact rod abuts against the tip functional element. The impact power piece is used for generating impact power. The impact block is disposed between the impact rod and the impact power piece, capable of forming a gas space with the impact power piece, and capable of reciprocating when impacted by the impact power generated by the impact power piece. A minimum length of the gas space in a direction of the output axis is less than or equal to 13 mm.

Power tool and hammer drill

A power tool includes a housing, a motor, a ball sleeve, an oscillating member with a mounting portion, and an output shaft rotating around an output shaft axis. The oscillating member and the ball sleeve are engaged in an engagement region on the oscillating member, and the geometric center of the engagement region is an engagement center. A first plane bisects the first bearing assembly along a direction of the output shaft axis, and a second plane bisects the second bearing assembly along the direction of the output shaft axis. The height from the engagement center to the first plane is a first height H1, the height from the engagement center to the second plane is a second height H2, and the ratio H1/H2 of the first height H1 to the second height H2 is greater than or equal to 0.5 and less than or equal to 1.4.

Power tool

A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.

Walk-behind self-propelled working machine

A smart power tool includes: an output shaft, an electric motor, a housing, and an adjustment assembly. The adjustment assembly is used for adjusting a working mode and outputting a mode signal. The working mode includes a drill gear mode and a wood screw mode. In the drill gear mode, a working state of the smart power tool is determined according to a set of current variables and/or a set of feature quantities and a type of a drill bit and, when the smart power tool is in a drill-through state, the electric motor is controlled to stop rotating.

Smart electric power tool and control method thereof

Provided are a method and a device for real-time monitoring of tunnel deformation. The monitoring method includes: S, erecting a plurality of structured light sources in an unstable area to be monitored of a tunnel structure, and erecting a monitoring terminal in a relatively stable region of the tunnel structure, where the monitoring terminal may communicate with the plurality of structured light sources; S, observing all structured lights in the unstable area of the tunnel structure and obtaining structured light curves in real time by the monitoring terminal; S, analyzing imaging changes of the structured lights, detecting deformation degrees and offset distances of the tunnel in real time, and monitoring the diseases such as settlement, convergence of a single-section of the tunnel and integral settlement of a multi-section of the tunnel by the data processing unit.

Conveying manipulator for machining precision parts

A method for displaying an advertisement picture includes obtaining, by a terminal, location information of a first key information area in a first advertisement picture from an advertisement server, obtaining, by the terminal, the first advertisement picture, cropping, by the terminal, the first advertisement picture based on the location information, and displaying, by the terminal, a second advertisement picture in an advertisement display area of a display, where the second advertisement picture includes a second key information area, and the second advertisement picture is obtained after the first advertisement picture is cropped, or the second advertisement picture is a picture obtained by scaling the cropped first advertisement picture.

Method for displaying advertisement picture, method for uploading advertisement picture, and apparatus

A multilayer thin film evaporator for steam heating includes a housing. A three-layer evaporation cylindrical core arranged in a nested manner with one layer placed inside the other is configured inside the housing. A limiting plate is configured to fix the three-layer evaporation cylindrical core. A feeding tube, a heating medium inlet tube, and a heating medium outlet tube are sequentially fixed under the limiting plate in a crosswise manner. A rotary rack spindle passing through a center of the three-layer evaporation cylindrical core, a rotary rack fixed on the rotary rack spindle and capable of rotating with the rotary rack spindle, and a motor component connected to a top end of the rotary rack spindle and capable of driving the rotary rack spindle to rotate are further provided.

Multilayer thin film evaporator for steam heating

A power tool includes: a power assembly including a motor, the motor including a motor shaft rotatable about a motor axis; an output assembly including an output shaft; a transmission assembly; a first housing; a second housing; wherein the power tool is provided with a first vibration isolation plane and a second vibration isolation plane; the first vibration isolation plane is provided with a first vibration isolation block, and the second vibration isolation plane is provided with a second vibration isolation block; the whole composed of the first vibration isolation block and the second vibration isolation block is at least provided with a spacing portion between the first housing and the second housing; the second housing is spaced apart from the first housing at the spacing portion; the first vibration isolation block and the second vibration isolation block are separated from each other.

A method includes obtaining, by a terminal, first advertisement information of a current to-be-played advertisement and second advertisement information of a predicted future to-be-played advertisement, where the first advertisement information is used to indicate a characteristic attribute of a to-be-played advertisement currently displayed on the terminal, and the second advertisement information is used to indicate a characteristic attribute of a to-be-played advertisement to be displayed on the terminal in the future. The method further includes obtaining, by the terminal, a first advertisement creative of the current to-be-played advertisement based on the first advertisement information. The method further includes obtaining, by the terminal, a second advertisement creative of the future to-be-played advertisement based on the second advertisement information. The method further includes separately displaying, by the terminal, the first advertisement creative and the second advertisement creative.

Advertisement display method, and terminal

A multi-stage evaporation system enhanced by a gravity-reduced field consists of evaporation structures of multiple stages. There are three different operation modes, namely, a serial-connected air and parallel-connected solution mode, a serial-connected air and serial-connected solution mode, and a parallel-connected air and serial-connected solution mode. In the evaporation chambers, the solution directly contacts the air to transfer the heat and mass. The solution is sprayed on the rotating filling material, and is uniformly distributed under the action of the gravity-reduced field, which enhances the heat and mass transfer. The solution is gasified by absorbing the heat energy thereof. Meanwhile, the air can carry more water vapor after being heated by the solution and thus having an increased temperature, and take away the gasified solution, thereby achieving the purpose of evaporation.

Multi-stage evaporation system enhanced by a gravity-reduced field

Growing community of inventors

Nanjing, China

Yang Li