6results about How to "Difficult to observe" patented technology

The invention relates to the technical field of aquaculture methods, in particular to a breeding method for preventing and treating ichthyophthiriasis of leiocassis longirostris fries. According to the technical scheme, the first system and the second system are adopted for sequential circulation treatment, and finally the third system is adopted for treatment, so that prevention and treatment of ichthyophthiriasis are achieved. The three systems are all subjected to heating treatment, and the first system contains sodium chloride and formaldehyde, so that rapid falling of insect bodies is promoted, and development of larvae is inhibited; the second system contains povidone iodine, so that body surface infection can be prevented; the third system consolidates the treatment effect; in the treatment process, unhatched cysts and dead polypides are discharged by changing water. A physical heating measure is adopted, so that osmotic stress of salinity on the freshwater fish is reduced. The adopted medicines are all easy to metabolize, are free of heavy metal ions, and have ideal ecological safety and food safety. According to the technical scheme, the technical problem that in the prior art, a safe and effective breeding method for preventing and treating the Leiocassis longirostris ichthyophthiriasis is lacked can be solved, and the method has ideal application and popularization prospects.

This utility model relates to the field of lighting equipment technology, and provides a rotating assembly and a lamp. The rotating assembly includes a rotating shaft and two rotating parts. Each of the two rotating parts has a receiving groove, and a connecting hole is formed through the bottom wall of the receiving groove on each rotating part. The fixed end of the rotating shaft is connected to one of the rotating parts, and the through end of the rotating shaft passes through the two connecting holes and is connected to the other rotating part through a locking member. This design enables a movable connection between the two rotating parts, resulting in a simple structure and stable maintenance of their relative positions. Furthermore, by placing both the fixed end and the through end within the receiving groove, and by placing the locking member connecting the through end and the rotating part within the receiving groove, the rotating shaft and locking member are not easily visible to the user, improving the structural aesthetics of the rotating assembly. Moreover, the rotating shaft and locking member are less susceptible to damage from external factors, ensuring better reliability in use.

The present invention relates to a direct-type backlight module and a display device. The direct-type backlight module comprises at least one light-emitting diode, a shading member and a diffusion plate. The shading member is arranged above the light-emitting diode and corresponds to the light-emitting diode, and the size of the shading member is larger than the size of the light-emitting diode. The shading member comprises a light processing part and a light absorbing frame part. A part of the light emitted by the light-emitting diode and directed toward the shading member passes through the light processing part. The light absorbing frame part is connected to the outer periphery of the light processing part to absorb the light directed toward the light absorbing frame part. The diffusion plate is arranged above the shading member. The display device comprises the above-mentioned direct-type backlight module and a display panel.

The utility model belongs to the field of bicycles, and discloses a hidden type seat post fixing mechanism, a stand pipe assembly and a bicycle, the hidden type seat post fixing mechanism comprises a locking frame arranged on a stand pipe, the locking frame is provided with a locking block fixing cavity, a locking block and a locking screw are arranged in the locking block fixing cavity, and the locking block is used for pressing a seat post; a screw head of the locking screw is located at the opening of the lower side of the locking frame and abuts against the locking frame in the axial direction, and a screw rod of the locking screw extends into the locking frame and is in threaded connection fit with the locking block. The utility model has the advantages of convenient installation, convenient operation, safety and reliability.

The utility model provides a double-color quartz tube liquid level meter which comprises a liquid level tube, the top and the bottom of the liquid level tube are both connected with connecting blocks, defrosting mechanisms are arranged on the outer sides of the connecting blocks, one sides of the connecting blocks are connected with pressure relief mechanisms, and the defrosting mechanisms are used for increasing the temperature around the liquid level tube. The defrosting mechanism comprises a sleeve block screwed to the outer side of the connecting block, the top of the sleeve block is connected with a connecting column, one end of the connecting column penetrates through the top of the sleeve block, extends into the sleeve block and is connected with a heat conduction disc, and the bottom of the heat conduction disc is connected with an inserting block. According to the double-color quartz tube liquid level meter, the problems that in the process that a defrosting mechanism generates heat, liquid in the liquid level tube is heated and volatilized to generate steam, the pressure intensity in the liquid level tube is increased, and negative influences are generated on the structural stability are solved.

The utility model relates to the technical field of household appliance door handles, and provides a door body with a hidden door handle and a household appliance, the door body with the hidden door handle comprises a movable block arranged on the door body, a door handle opening part forming the door handle is arranged on the door body, the movable block is movably connected with the door body, and the movable block and the door handle are correspondingly arranged. And the movable block moves on the door body and opens or closes the opening part of the door handle. The door body is provided with a movable block corresponding to the door handle, the movable block forms the outer surface part of the door body and shields the opening part of the door handle when in the initial position state, and when the movable block moves towards the direction of opening the opening part of the door handle, the opening part of the door handle is in the open state, so that the hand of a user can conveniently stretch into the door handle to operate the door body. When the door body is in the undetermined state, the movable block shields the opening portion of the door handle of the door body, a user cannot easily observe the door handle, and the whole door body is more attractive.