17results about How to "Prevent removal" patented technology

This utility model discloses a transformer copper foil winding fixture belonging to the field of transformer processing technology. It includes a base, a turntable movably connected to the top of the base, a fixed clamping plate fixedly welded to one side of the top center of the turntable, and a drive groove on the other side of the top center of the turntable. A clamping motor is fixedly installed at the end of the drive groove away from the fixed clamping plate, and a screw is provided at the output shaft end of the clamping motor. A slider is slidably arranged inside the drive groove, and a movable clamping plate is fixedly welded to the top of the slider. A threaded sleeve is embedded in the inner side of the slider. By setting the fixed clamping plate and the movable clamping plate on the top of the turntable, the clamping motor in the drive groove drives the screw to rotate, causing it to move the threaded sleeve and the slider, thereby driving the movable clamping plate to move closer to the fixed clamping plate and clamp and fix the end of the copper foil, ensuring its stability and preventing the end of the copper foil from detaching at the beginning of winding.

This invention provides a follow-up clamping device for providing vortex gas to a laser welding head to protect the workpiece being welded. The follow-up clamping device includes: a clamping body having a conical inner cavity; a connecting member, one end of which is connected to the laser welding head; and an annular gas supply member, through which gas is introduced from the large opening side of the conical inner cavity, converges and forms a vortex-like converging airflow within the conical inner cavity, and is then ejected from the small opening side of the conical inner cavity, suitable for spraying towards the workpiece being welded. This invention solves the problems of unstable gas protection and the existence of protection dead zones in existing technologies, as well as the problem of severe plasma shielding effects affecting welding depth and energy transmission in existing technologies. It also solves the problem of existing laser welding clamping mechanisms obstructing airflow and causing protection blind zones.

The utility model relates to gas steaming oven technical field, and disclose a steam heat -assisting device for gas steaming oven on, gas steaming oven cover and gas steaming oven shell are provided with adjusting mechanism, adjusting mechanism is provided with the plug -in mechanism, gas steaming oven shell bottom is provided with the placement groove, the surface screw thread connection of screw rod has the moving seat, the surface rotatory connection of fixed link and long lever has the rotating plate, the surface rotatory connection of connecting rod and long lever has the rotating seat. The steam heat -assisting device for gas steaming oven on, gas steaming oven cover is driven to open or close, can avoid by human hand -held gas steaming oven cover to open or close, reduce the risk of hand scald, first pulley rotation makes second pulley rotation, simultaneously, second pulley drives rotating rod rotation, rotating rod and the rotating rod respectively drive mounting plate rotation plug -in in rectangular groove, when, can make gas steaming oven cover close, can avoid gas steaming oven cover appear to be opened at random.

The utility model relates to the technical field of storage shelf, and disclose a kind of storage shelf, setting up adjusting mechanism on supporting plate and placing plate, setting up fixed mechanism on placing plate, adjusting mechanism includes plug-in assembly and fixed assembly, plug-in assembly includes square groove, square groove is densely opened in the inside of left and right two supporting plates, and the left and right sides of placing plate are respectively fixedly connected with square plate, and the outside of left and right two square plates is provided with square slot, and the inside of front and rear two supporting plates is densely rotatably connected with fixed rod, and the surface of fixed rod is fixedly connected with rotating plate.The storage shelf, square plate is inserted in square groove, and different height articles can be placed on placing groove, rotating plate is inserted in square slot, and moving plate is driven plug-in rod to be inserted in jack groove again, and moving plate and supporting plate are fixed by screw, and the position of fixed rod can be fixed, rotating plate is removed from square slot at will, and the position of placing plate can also be fixed.

This invention discloses a method for fabricating a semiconductor structure, belonging to the field of semiconductor technology. The method includes the following steps: providing a substrate, on which a buffer oxide layer is disposed, and on which a gate structure and sidewalls are disposed, the sidewalls comprising an inner nitride layer, an intermediate oxide layer, and an outer nitride layer; a silicon-germanium epitaxial layer is disposed in the substrate between adjacent gate structures; removing the outer nitride layer; reacting the buffer oxide layer and the intermediate oxide layer with a dry etching gas to generate a solid byproduct layer in situ; and removing the solid byproduct layer using sublimation or ashing. The semiconductor structure fabrication method disclosed in this invention can improve the performance of the formed semiconductor device.

This invention provides a stair climber, comprising a body, supporting legs, a handrail assembly, and two foot pedals. The supporting legs are connected to the bottom of the front side of the body and can rotate and fold or unfold relative to the body. The handrail assembly is rotatably connected to the front end of the body, and an angle adjustment mechanism is provided between the handrail assembly and the body to adjust the relative angle between the handrail assembly and the body. The two foot pedals are connected to the body at left and right intervals and can slide back and forth alternately relative to the body. The stair climber also includes a secondary grip, which is detachably connected to the front end of the body. When the body is in a flat position and the user is kneeling on the two foot pedals in a prone position, the secondary grip is used for the user's hands to hold it. This invention has the advantage of multiple usage modes, thereby meeting different user needs.

The utility model discloses an adjustable seat layout scooter for the old, relates to scooter technical field, including scooter chassis and two seats, the upper surface of scooter chassis is seted up with the slide groove, the inside slide of slide groove is provided with two sliding blocks, the upper surface of two sliding blocks all is fixedly connected with support rod, the lower surface of two seats all is fixedly connected with fixed block, the inside of two fixed blocks all is seted up with cavity, the upper end of two support rods respectively penetrates the lower surface of corresponding fixed block and extends to the inside of corresponding cavity. The utility model discloses through setting slide groove, sliding block, limiting mechanism and fixed mechanism, and the seat can realize rotation and left and right movement, and the face-to-face communication of the old people is convenient, and also can be placed larger article and vacate the space, has met the use demand of the old people under different scenes, has improved the practicality and convenience of the old scooter.

The utility model relates to a low flow resistance full-bore plug valve, which comprises a valve body (1) and a valve rod (2) movably and sealingly installed in the valve body (1), a valve disc (3) is arranged in the valve body (1), the valve disc (3) is in driving connection with the valve rod (2), a valve seat (4) is arranged on the inner wall of the inlet end of the valve body (1), the bottom of the valve disc (3) is an arc-shaped sealing surface, the valve rod (2) drives the valve disc (3) to rotate, and the bottom of the valve disc (3) is in contact sealing with the valve seat (4). The utility model has the advantages that the structure of the valve body and the valve disc is improved to improve the vortex turbulent flow and reduce the fluid resistance. The valve disc blocks the medium, the impurities in the medium scour and wear the rubber layer of the valve disc, the sealing performance and the service life of the product are improved.

This utility model discloses a seat angle detection system, relating to the field of seat angle detection technology. The seat conveyor line includes a first conveyor line and a second conveyor line, used to transport seats from the second conveyor line to the first conveyor line. A first stopper is installed at the inlet of the first conveyor line, and a first stop switch is installed on the first conveyor line. A second stopper is installed at the inlet of the second conveyor line, and a second stop switch is installed on the second conveyor line. A first angle detection device is installed on the first conveyor line, and a second angle detection device is installed on the second conveyor line. This seat angle detection system automatically detects the seat back angle through the first and second stop switches, and prevents the seat from entering the second conveyor line and from moving out of the first conveyor line through the first and second stoppers. This eliminates the need to stop the entire seat conveyor line, greatly improving detection efficiency.

This utility model proposes a high-performance, low-noise, silencer check valve with a simple structure and convenient valve plate replacement. It includes a valve body, an inlet channel, an outlet channel, and a fixing rod within the valve body. A valve seat is provided at the inlet channel, and a water-passing frame is provided at the outlet channel. A valve stem slides through the water-passing frame, and a valve plate is provided at the end of the valve stem. A connecting rod is provided at one end of the fixing rod, and the valve plate is located at the other end of the fixing rod. A socket channel is provided on the valve stem, and the connecting rod passes through the socket channel. An anti-detachment device is provided on the valve stem to prevent the connecting rod from detaching. A maintenance channel communicating with the outside is provided on the side of the valve body, and a sealing cover is provided on the valve body via a fixing device to seal the maintenance channel.

This utility model relates to the technical field of brushes, buffers, cups, or similar items, and discloses an electric toothbrush with anti-drop function, including a handle. A water guide shell is fixedly sleeved on the outer surface of the handle, and a toothbrush head is provided on the upper side of the water guide shell. The toothbrush head is connected to the upper end of the handle. A first rubber sleeve and a second rubber sleeve are sleeved on the outer surface of the handle. The first rubber sleeve and the second rubber sleeve have the same connection structure and are arranged symmetrically front and back. A rotating shaft is connected between the first rubber sleeve and the second rubber sleeve, and the first rubber sleeve and the second rubber sleeve are rotatably connected through the rotating shaft. A charging port is provided on the lower side of both the first rubber sleeve and the second rubber sleeve. A disassembly and assembly mechanism is provided on both the first rubber sleeve and the second rubber sleeve. In this way, the rubber sleeve can be easily and quickly disassembled and installed from the handle, so that a long time is not wasted on disassembling and assembling the rubber sleeve during cleaning, thereby improving the cleaning efficiency of the rubber sleeve.

The utility model relates to mobile payment terminal technical field, propose a kind of mobile payment terminal shell with anti-disassembly structure, including lower layer frame and upper layer frame, still include connecting block, fixed block, connecting groove, moving rod, first connecting piece, buffer spring, second connecting piece, plug-in rod, fixed column, connecting frame, auxiliary spring, moving column, ball bearing and moving piece, connecting block is installed in upper layer frame, the outside of connecting block is equipped with fixed block, the inside of fixed block is equipped with connecting groove, moving rod is arranged in the inside of lower layer frame, the additional surface of moving rod is equipped with first connecting piece, the upper surface of first connecting piece is equipped with buffer spring, the top of buffer spring is equipped with second connecting piece, moving rod is arranged in the inside of buffer spring, the outer surface of plug-in rod is arranged in moving rod. By the above technical scheme, to solve the problem that mobile payment terminal shell is easily disassembled in the prior art, causing mobile payment terminal to be lost.

This invention belongs to the field of electrical control cabinet technology, and particularly relates to a variable-diameter copper busbar and its processing device. The variable-diameter copper busbar includes a first rectangular busbar, a second rectangular busbar fixed at one end of the first rectangular busbar, and a third rectangular busbar fixed at the other end of the second rectangular busbar. The invention reduces the diameter of the copper busbar to meet corresponding current and temperature rise requirements. The processing device for the variable-diameter copper busbar includes a machine body. A first guide rail is fixedly mounted on the top of the machine body, a movable frame slides on the first guide rail, a second guide rail is fixedly mounted on the bottom surface of the movable frame, a movable block slides on the second guide rail, a servo cylinder is fixedly mounted on the bottom surface of the movable block, and a laser cutting head is installed at the telescopic end of the servo cylinder. A grid plate is installed in the lower part of the machine body. This invention can cut the variable-diameter copper busbar by moving the laser cutting head laterally, obliquely, and longitudinally.

In one aspect, a toy assembly is provided that includes a housing, an internal object, a sensor, an LED, and a control system. The housing is light transmissive and has an internal light transfer member having a light entry port and a light exit port positioned to direct light into the housing so as to make the light visible. The LED directs light at the light entry port of the light transfer member so as to transfer the light through the light transfer member into the housing and through the housing so as to be visible from outside the housing. The control system is programmed to execute instructions to operate at least one light emitting element if a condition is met.

The utility model relates to the field of engineering machinery safety equipment, and discloses a protection device for loading machine tire inflation, the protection device comprises a bottom frame, the upper end of the bottom frame is fixedly connected with a fixed frame, the inner side of the fixed frame is fixedly connected with first glass, the inner side of the first glass is rotatably connected with second glass, the peripheral side surface of the second glass is fixedly connected with a limiting ring, and the limiting ring is fixedly connected with the fixed frame. And two sets of limiting rings are arranged, an operation window is formed in the front face of the second glass, two sets of rolling wheels are arranged at the bottom of the bottom frame, and two sets of universal wheels are arranged at the bottom of the bottom frame. Compared with the prior art, the tire inflation device has the following advantages and effects that the tire can be framed through the bottom frame, so that the first glass and the second glass can be located at proper positions, the tire can be conveniently inflated through the first glass and the second glass, meanwhile, an operator can be protected, and the safety is improved. And the serious body injury of operators caused by the impact force of tire burst and splashed fragments is prevented.