公开(公告)号：US20180372089A1

公开(公告)日：2018-12-27

申请号：US15632403

申请日：2017-06-26

申请人： Xiaorong Li ,  Fazheng Yang ,  Fei Tang ,  Xinbiao Ying

发明人： Xiaorong Li ,  Fazheng Yang ,  Fei Tang ,  Xinbiao Ying

IPC分类号： F04B53/14 ,  F04B53/18 ,  F04B53/02

摘要： A sealing structure of a plunger pump, comprising: a pump body and a plunger rod assembly disposed in the pump body; wherein the pump body includes an upper pump and a lower pump, and the upper pump and lower pump are fixed by screw connection; a sealing ring provided between the upper pump and the lower pump; wherein the plunger rod assembly includes an annular groove disposed at a position adjacent to a lower portion of the plunger rod at an outer peripheral surface thereof; a dynamic lip seal fitted in the annular groove; and a static lip seal sleeved on the outer peripheral surface of the plunger rod; the sealing structure of the plunger pump has good sealing effect, good anti-wear and anti-wear effect, simple replacement and low maintenance cost.

公开(公告)号：US11986930B2

公开(公告)日：2024-05-21

申请号：US17412240

申请日：2021-08-25

申请人： Xiaorong Li ,  Fazheng Yang

发明人： Xiaorong Li ,  Fazheng Yang

IPC分类号： B25B21/02

CPC分类号： B25B21/02

摘要： A high-torque impact wrench is disclosed. The impact wrench comprises a case. The case comprises an engine body and a handhold. A base is provided on the bottom of the handhold. A battery pack is provided inside the base. The rear end of the engine body is configured with a motor, and the front end of the engine body is configured with an output shaft. The front end of the output shaft extends out of the engine body. A spindle is configured between the motor and the output shaft. The rear end of the spindle is provided with a spindle seat. The spindle is sheathed by an impact block. The spindle outer wall is configured with a steel ball track. Inside the steel ball track, there are steel balls matching the impact block.

公开(公告)号：US11504836B2

公开(公告)日：2022-11-22

申请号：US16869556

申请日：2020-05-07

申请人： Xiaorong Li ,  Fazheng Yang ,  Zhonghua Jiang

发明人： Xiaorong Li ,  Fazheng Yang ,  Zhonghua Jiang

IPC分类号： B25C1/04 ,  B25C1/00

摘要： A novel nail stop block structure for nail stop and restraining comprises a nail head and a striker hole disposed in the nail head. The front orifice of striker hole is located in the front end face of nail head. A nail head cylinder is disposed on the left lower end of middle part of the nail head. A mobile hole is disposed in the center of upper surface of the nail head cylinder connected to the inner space thereof. An assorted nail feeding piston is disposed in the nail head cylinder. A piston rod coaxial with the mobile hole is disposed on the center of upper surface of the nail feeding piston. The upper end of the piston rod passes upwards through the mobile hole.

公开(公告)号：US20200338707A1

公开(公告)日：2020-10-29

申请号：US16395195

申请日：2019-04-25

申请人： Xiaorong Li ,  Fazheng Yang

发明人： Xiaorong Li ,  Fazheng Yang

IPC分类号： B25C1/00 ,  B25C1/04

摘要： A nail supply device for pneumatic nail gun, including a piston seat, a longitudinal slideway, a transverse slideway connected to the longitudinal slideway, nail guide plates, and a slide clearance; the lower surface of the piston seat having a nail output interface; the upper surface of the piston seat having a nail inlet hole vertically connected to the nail output interface, the front side of nail inlet hole is connected to the rear side of longitudinal slideway; the front sidewall of the piston seat having a piston hole and a nail push hole adjacent to the piston hole, the nail push hole is connected to the longitudinal slideway. The nail supply device for pneumatic nail gun of the present invention can supply nails automatically when the pneumatic nail gun is nailing, the nailing efficiency and nailing quality are guaranteed effectively.

公开(公告)号：US20200056608A1

公开(公告)日：2020-02-20

申请号：US16198897

申请日：2018-11-23

申请人： Xiaorong Li ,  Fazheng Yang

发明人： Xiaorong Li ,  Fazheng Yang

IPC分类号： F04B53/14 ,  F16J15/3232 ,  F16J15/00

摘要： A sealing structure of plunger pump, comprising a pump body, a feed chamber, an oil, a suited plunger; wherein the plunger includes a one-way valve and a discharge hole; the feed chamber includes a mounting step having a first sealing ring, a second sealing ring; an inner wall of the first sealing ring has a plurality of first sealing pipes distributed uniformly in longitudinal direction; an infusion step having an annular mounting groove; the mounting groove is embedded with a suited spring leaf; an inner wall of the second sealing ring includes a plurality of sealing toothed rings. The sealing structure of the plunger pump can ensure the sealing effect of the sealing ring when the sealing ring is worn out, and can ensure the service life of the sealing ring to the utmost extent.

公开(公告)号：US20190126300A1

公开(公告)日：2019-05-02

申请号：US15798427

申请日：2017-10-31

申请人： Xiaorong Li ,  Zhenxing Ying ,  Bo Chen ,  Junpeng Wei ,  Fazheng Yang

发明人： Xiaorong Li ,  Zhenxing Ying ,  Bo Chen ,  Junpeng Wei ,  Fazheng Yang

IPC分类号： B05B7/24 ,  B01D35/30 ,  B65D25/56 ,  B65D43/02 ,  B65D53/02 ,  B65D25/14 ,  B05B15/00

CPC分类号： B05B7/2408 ,  B01D35/306 ,  B01D2201/24 ,  B05B7/2478 ,  B05B15/40 ,  B65D25/14 ,  B65D25/56 ,  B65D43/0231 ,  B65D53/02

摘要： A disposable cleaning-free paint pot comprise a pot body and a pot lid covering an opening of the pot body, the pot lid including a pot lid connector and a feed hole disposed in the pot lid connector, the adapter including an external thread disposed at an outer wall, positioning blocks disposed at an inner wall thereof, a press plate and a clamping cam; the pot lid joint is including positioning slots engaging with the positioning blocks and an annular groove for the clamping cam. The paint pot from cleaning after spray coating, the cleanliness of paint pot is guaranteed, so that the paint pot is fitted on spray gun rapidly, and the paint can be mixed in the pot body.

公开(公告)号：US20190010941A1

公开(公告)日：2019-01-10

申请号：US15643497

申请日：2017-07-07

申请人： Xiaorong Li ,  Fazheng Yang ,  Zhenxing Ying ,  Bo Chen

发明人： Xiaorong Li ,  Fazheng Yang ,  Zhenxing Ying ,  Bo Chen

IPC分类号： F04B53/14 ,  F16J15/3212 ,  F16J15/3232 ,  F16J15/00

摘要： A sealing structure of a reciprocating plunger pump, comprising a pump seat, a pump body assembly, a first sealing ring, and a second sealing ring; the first sealing ring including a first sealing body which is an integrally formed annular body structure including an upper layer, a lower layer, and a V-shaped groove; wherein the V-shaped groove divides the bottom surface of the lower layer into an inner portion and an outer portion, and the inner portion thereof is higher than the outer portion; the second sealing ring includes a second sealing body which is integrally formed and includes an upper ring piece and a lower ring piece having an included angle disposed therebetween; the sealing body includes an annular rib disposed in the middle of an outer wall thereof. The sealing structure allows the reciprocating plunger pump to have a good sealing effect and a long service life.