9results about How to "Avoid accidental opening" patented technology

The utility model discloses a light-emitting diode (LED) display screen aluminum box body capable of quickly replacing internal components, which relates to the field of LED display screen aluminum box bodies, and comprises a fixed frame and a limiting baffle plate, a movable frame is arranged on the rear side of the fixed frame, and connecting components are arranged on the side surfaces of the fixed frame and the movable frame. According to the LED display screen aluminum box body with the internal components capable of being rapidly replaced, by arranging the connecting assemblies and the limiting baffles, in the using process of the LED display screen aluminum box body, workers can conveniently install the LED display screen aluminum box body, connection between the structures is tight, the situation that the LED display screen aluminum box body is accidentally opened in the subsequent using process is avoided, and the service life of the LED display screen aluminum box body is prolonged. The LED display screen aluminum box has the advantages that the LED display screen aluminum box is convenient to mount and demount, internal components can be quickly replaced, the service life of the LED display screen aluminum box is prolonged, the LED display screen can be conveniently limited, the situation that the LED display screen topples over and is damaged in the follow-up using process is avoided, and the LED display screen aluminum box is convenient to use by workers.

The tail cover locking device comprises a lamp body and a tail cover, the tail cover is connected with one side of the lamp body through a hinge structure, the other side of the lamp body is provided with a push switch, and the push switch is used for controlling locking and unlocking of the tail cover. The lamp body is provided with a locking piece, and the locking piece can be rotationally switched between a locking position and an unlocking position relative to the lamp body; wherein at the locking position, a wedging part included in the locking piece moves into the bottom of the pressing switch so as to limit the pressing switch from being mistakenly touched and operated; and at the unlocking position, the wedging part is separated from the bottom of the pressing switch and is exposed out of the lamp body, so that the pressing switch is allowed to act freely, and normal unlocking of the tail cover is realized. According to the tail cover locking device provided by the utility model, the rotatable locking piece is additionally arranged at the position of the pressing switch, so that the switch is mechanically blocked, the tail cover is prevented from being accidentally opened due to accidental touch, and the locking reliability of a battery compartment is enhanced while the operation convenience is improved.

The application discloses a threshold value adjustable vertical double diffusion metal oxide semiconductor field effect transistor, which comprises a drift region, a body region formed in the drift region from the upper surface of the drift region downwards, a gate oxide layer formed on the upper surfaces of the drift region and the body region, and a PN junction composite polysilicon gate formed on the upper surface of the gate oxide layer and composed of a first type polysilicon and a second type polysilicon, wherein the second type polysilicon covers all surfaces of the first type polysilicon except the bottom, and the vertical projection of the PN junction junction boundary formed by the first type polysilicon and the second type polysilicon is located in the body region in the channel region. When the transistor is turned on, the PN junction composite polysilicon gate is in a reverse bias state, and the threshold voltage is raised by affecting the inversion process of the body region through the junction electric field. The application realizes the raising of the threshold voltage of the device without weakening other performances of the device, and does not change the core gate oxide process and need to cooperate with a groove structure.

The utility model provides a vehicle door anti-pinch mechanism and a ferry vehicle, and relates to the technical field of transportation. The car door anti-pinch mechanism comprises a driving assembly, an anti-pinch assembly and an anti-pinch failure assembly, the driving assembly comprises a driving piece, and the driving piece is connected to a car door, can drive the car door to move and is used for opening and closing the car door; the anti-pinch assembly is configured to control the vehicle door to be opened when the vehicle door makes contact with an obstacle. The anti-pinch failure assembly comprises a moving part, a first induction part and a first detection part, the moving part is connected to the end, away from the automobile door, of the driving part, the driving part can drive the moving part to move, the first induction part is connected to at least one of the driving part and the moving part, and the first detection part is used for detecting the position of the first induction part. The induction points are additionally arranged on the moving part, the first detection part detects the first induction part which linearly reciprocates along with the moving part, the detection process is stable, fluctuation is not prone to occurring, the anti-pinch distance is effectively shortened, and debugging is easy and convenient.

The utility model discloses a microorganism sample transportation device which is characterized in that a sample bottle is placed in a placing groove, the bottom surface of the sample bottle is in contact with the inner bottom surface of the placing groove, meanwhile, the lower part of the sample bottle is clamped by a clamping assembly, and the clamping assembly plays a role in buffering the lower part of the sample bottle. When the box cover swings to cover the top face of the movable box, the bottom of the pressure stabilizing assembly arranged in the box cover abuts against the bottle cap of the sample bottle, the situation that the bottle cap of the sample bottle is opened accidentally is avoided under the condition that the pressure stabilizing assembly is pressed downwards, and then the problem that existing sample bottles are different in height and width and cannot be matched with the design of a containing groove arranged in a large box is solved. The risk of microorganism escape in the transportation process is easily caused, and finally, environmental microorganism safety threats are possibly caused.

The utility model provides a mining explosion-proof type electromagnetic lock, which relates to the technical field of electromagnetic locks and comprises a base, a shell arranged at the top of the base, a cover plate arranged at the top of the shell, a guide seat arranged on the side wall of the shell in a penetrating manner, a through locking head arranged in the guide seat, and a reset spring sleeved on the side wall of the locking head and positioned in the guide seat, the top of the base is provided with an electric push rod located in the shell and used for pushing the locking head to move. The utility model has the advantages of reasonable structure, high safety and good use effect.

A coffee pot, comprising a pot body and a pot lid covering the opening at the top of the pot body. A guiding opening protruding from the bottom of the air exchange cavity is provided at the center of the bottom of the air exchange cavity. An inverted L-shaped water outlet channel is provided on one side of the guiding opening. A pressing water outlet structure is arranged in the guiding opening. Locking sliders are respectively and slidably arranged in the air exchange cavities on both sides of the guiding opening. A top cover also covers the top end of the pot lid. The upper ends of the locking sliders are respectively located in the pressing grooves on the surface of the top cover. A retaining edge structure with an inverted trapezoidal cross-section is arranged on one side of the lower end of the locking slider. The retaining edge structure penetrates through the side wall of the pot lid and the outer end is stuck in the fixed card slot arranged inside the opening at the top of the pot body. Rebound springs for pushing the locking sliders outwards are respectively fixed to the inner sides of the locking sliders on each side. The utility model is not only convenient to open and fasten, but also simple to operate. After being fastened, the pot lid can be firmly locked, effectively preventing it from being accidentally opened.

The utility model relates to pipe valve spare technical field, concretely relates to a pipe valve spare with prevent mistaken operation function, including valve body, be equipped with protection mechanism on the valve body, and the protection mechanism includes two opposite protection cover of setting in the execution element both sides of valve body, one protection cover outside wall is equipped with the mounting post, the fastening rod is rotatably equipped with on the mounting post, the one end of fastening rod away from the mounting post is equipped with the stop plate, the fastening rod outside between lock sleeve and stop plate is coaxially equipped with the drive spring, the other protection cover outside wall is equipped with the fixed plate, and the fastening groove of fastening rod is seted up on the fixed plate and is connected after rotating, and the protection cover outside wall is equipped with the support rod, and the support rod bottom is equipped with the connecting plate of arc structure. The utility model can carry out the protection to the execution element of valve body, and the hand or tool of blocking personnel contacts the execution element, avoids personnel mistaken touch execution element and leads to valve body accidental opening or closing.

The utility model discloses a safety protection type power box, which relates to the power box field, and comprises a box body, a movable door and a clamping frame, the inner bottom of the box body is provided with a fan, the two sides of the inner part of the box body are fixedly connected with second fixing frames, and a support frame is fixedly connected between the second fixing frames through bolts. And the movable door is rotationally connected to the front side of the box body. According to the safety protection type power box, the fan and the limiting assembly are arranged, in the use process of the power box, air in the power box can be promoted to flow, parts in the power box can be subjected to certain cooling treatment, large potential safety hazards caused by temperature rise in the power box are avoided, and the service life of the safety protection type power box is prolonged; and meanwhile, structural connection is tighter, the situation that the power box is accidentally opened in the subsequent use process is avoided, the power box has certain safety protection performance, and workers can conveniently use the safety protection type power box.