6results about How to "Avoid tinkering" patented technology

The utility model discloses a cutting knife for preventing timber from being damaged, which comprises a knife handle and a knife head, the knife head is coaxially and fixedly arranged on the knife handle, at least two cutting blocks are uniformly and fixedly arranged on the knife head, side cutting surfaces are arranged on the cutting blocks, and the included angle between each side cutting surface and the radius direction of the knife head is 14-16 degrees. A side cutting edge is formed between the side cutting face and the outer side face of the cutting block and arranged in a right-handed rotation mode, and the spiral angle ranges from 2 degrees to 8 degrees. Due to the fact that the spiral angle of the side cutting edge 4 ranges from 2 degrees to 8 degrees, the spiral angle of the side cutting edge is small, better discharging is achieved during machining, meanwhile, when machining is finished, wood cannot be damaged during cutter retracting of the cutting cutter, and follow-up repairing of the wood is avoided.

The utility model discloses an airport marking detection device, which relates to the technical field of airport marking detection, and comprises a device main body, a storage tank, a nozzle and a damper, the top of the device main body is provided with a control module, and the top of the control module is provided with a satellite positioning antenna used for acquiring the position and course angle of the device main body in real time. When the device is used, the device autonomously navigates along a marked line and synchronously collects marked line images, through the arrangement of the video detection module, the images of the marked line under the device can be shot, whether the marked line is damaged or not is judged through the images, and when the marked line is damaged, the pump body is remotely controlled to be opened, so that the marked line is accurately detected. And when the pump body is opened, paint in the storage tank can be pumped into the spray head through the connecting pipe, so that the spray head can repair the marking line of the damaged area section, the situation that a worker repairs the damaged marking line is avoided, and the functionality of the detection device is improved.

The utility model discloses a river course construction cofferdam structure, it includes a plurality of longitudinal baffle, the surface fixedly connected with the clasp strip of baffle, between two baffle is provided with the connecting angle board, the connecting angle board is adapted with baffle, and eight symmetries fixed frame are provided between a plurality of baffle, the surface of clasp strip is provided with two pairs of symmetrical clamp, the surface fixedly connected with two symmetrical connecting plates of clamp. The utility model discloses through placing two clamps on the surface of clasp strip, makes fixed bolt and thread connection nut through two connecting plates, so that fixed frame passes between two limit plates, makes fixed bolt and thread connection nut through limit plate, gasket, fixed frame, can reach the fixed beam of cofferdam structure can be fixed through the clamping structure to cofferdam structure, avoids the cofferdam structure and needs to be repaired after using, guarantees the leakproofness of cofferdam structure.

The utility model relates to the technical field of building construction, and concretely discloses a protective window rail suitable for construction temporary protection, which comprises a permanent protective window rail, the permanent protective window rail comprises a permanent protective window horizontal pole and a permanent protective window vertical pole, and a temporary protection frame is detachably installed on the permanent protective window rail, the temporary protection frame comprises a horizontal telescopic rod arranged between the permanent protective window horizontal pole and a floor slab, the temporary protection frame can fill the gap between the permanent protective window vertical pole and the floor slab, thereby achieving the purpose of temporary protection, and the temporary protection frame is arranged on the inner side of the protective window rail to play a construction protection function, which can avoid the direct collision of construction appliances or construction personnel on the permanent protective window rail, thereby forming protection for the permanent protective window rail, after the completion of construction, the horizontal telescopic rod is retracted, and then the temporary protection frame is dismounted and installed on the next construction part, so that the protective window rail can be repeatedly used.

The invention discloses a slicking and brushing device for a wall behind a pipeline and a construction method of the slicking and brushing device. The slicking and brushing device comprises a length-adjustable telescopic rod assembly; the containing box is installed at one end of the telescopic rod assembly, a rotating ball is rotatably arranged in the containing box, box plates on the two opposite sides of the containing box are provided with shaft holes, the two opposite sides of the rotating ball are provided with inserting holes, the inserting holes and the shaft holes are coaxially arranged, inserting rods are rotatably arranged in the two shaft holes in a penetrating mode respectively, and the inserting rods are arranged in the two shaft holes in a penetrating mode respectively. One end of the insertion rod is detachably inserted into the insertion hole; the scraper is mounted at the other end of one insertion rod; the brush roller is rotatably mounted at the other end of the other insertion rod; and the adjusting structure is used for adjusting the rotating angle of the rotating ball so as to enable the scraper and the brush roller to deflect, and is mounted at the other end of the telescopic rod assembly. The problem that efficient construction cannot be achieved through a traditional paint brush on the wall face behind a pipeline is solved.

This application provides a display back panel and a display device. The display back panel includes a substrate and a plurality of light-emitting components. The light-emitting components include a first light-emitting unit and a second light-emitting unit. When one light-emitting component is in a working state, the first light-emitting unit and the second light-emitting unit emit light in a time-sharing manner when both are working normally. When either the first light-emitting unit or the second light-emitting unit malfunctions, the normally working light-emitting unit continues to emit light. The display back panel provided by this application can avoid repairing malfunctioning light-emitting units when one light-emitting component is in a working state, reducing the number of rework operations and further improving the display quality of the display back panel. It can also delay the light decay time of the display back panel and extend its service life.