9results about How to "Guaranteed long-term use" patented technology

This utility model relates to the field of road and bridge construction technology, and in particular to a fixing structure for repairing road and bridge cracks. It includes a cylinder and a road surface. A crack groove is provided at the crack in the road surface for placing the cylinder. A top groove is formed above the crack groove. A vertically placed support is slidably installed inside the cylinder. A waterproof plate is fixedly connected to the top of the support after it slides through the cylinder. An inner cavity is formed at the top of the cylinder. Connecting rods are rotatably connected to both sides of a section of the support located in the inner cavity. A pull rod is rotatably connected to the end of the connecting rod away from the support. A fixing rod is provided at the end of the pull rod away from the connecting rod. This application improves construction efficiency and reduces difficulty through convenient adjustment of the fixing structure. Furthermore, the design of barbs and waterproof grooves enhances structural stability and waterproof performance. The mechanical structure under stress also prevents further cracking, ensuring the quality of the repair work in terms of construction efficiency and long-term stability of the repair effect.

The utility model discloses an air power supply module which comprises a shell, a metal anode and an electrode assembly, a liquid storage cavity and an air cavity are formed in the shell, and the liquid storage cavity is communicated with the air cavity through a mounting port; a cathode film is further arranged in the liquid storage cavity and covers the inner side of the installation opening in a sealed mode. A ventilation part is also arranged on the shell, is communicated with the air cavity and is arranged at the upper part of the shell; an exhaust hole is formed in the shell, the exhaust hole is communicated with the liquid storage cavity, and a waterproof breathable component is arranged on the exhaust hole; the waterproof breathable component comprises a first membrane and a second membrane, the second membrane is arranged on the inner side of the first membrane, and the first membrane is configured to prevent water in the liquid storage cavity from flowing out and allow gas in the liquid storage cavity to penetrate through and be exhausted. The air power supply module has a longer service life under the condition that the current anti-corrosion requirement of the water heater is met, and the situation of liquid leakage is reduced so as to improve the use reliability of the water heater.

The invention discloses a PTO tapered roller bearing clearance adjusting method which comprises the following steps: assembling an adjusting screw sleeve and a bearing seat, mounting a tapered roller bearing, mounting a flywheel shell, assembling the bearing seat and the flywheel shell, loosening the adjusting screw sleeve and tightening the adjusting screw sleeve. The method has the beneficial effects that the outer ring of the tapered roller bearing and the adjusting screw sleeve are separately arranged on the bearing seat in advance, then the bearing seat is installed on the flywheel shell, the adjusting screw sleeve is loosened firstly, then the bearing seat bolt is fastened, and after the bearing seat is installed in place, the adjusting screw sleeve is tightened to ensure that the adjusting screw sleeve is tightly attached to the outer ring of the bearing; the bearing outer ring and the bearing roller are always in zero clearance fit, the adjusting screw sleeve is loosened before the adjusting screw sleeve is fixed by using the fastening screw, the influence of a thread clearance can be effectively eliminated, the adjusting screw sleeve cannot be rotated and loosened after the fastening screw is installed, the bearing clearance cannot be changed in the use process of a product, and the service life of the product is prolonged. And long-term use of the product can be ensured.

The utility model belongs to the field of gas overflow dyeing machines, and particularly relates to a nozzle device of a gas overflow dyeing machine, which comprises a nozzle main body, a baffle plate is fixedly arranged in the nozzle main body, the surface of the nozzle main body is fixedly communicated with a feed pipe, the surface of the nozzle main body is provided with an air inlet hole, and the air inlet hole is communicated with the baffle plate. A cleaning mechanism is arranged in the nozzle body, the cleaning mechanism is used in cooperation with the baffle, and the cleaning mechanism comprises a rotating ring rotationally connected to the interior of the nozzle body; by arranging the cleaning mechanism, when gas enters the gas inlet hole, the gas pushes the fan blades, so that the fan blades drive the rotating ring to rotate, the rotating ring drives the cleaning assembly through the connecting rod, the connecting rod and the cleaning assembly clean the baffle, dye particles are prevented from being blocked in the overflow opening, and therefore normal overflow of the overflow opening is guaranteed; therefore, the cleaning frequency of the nozzle main body is effectively reduced, the downtime is reduced, and the long-time use of the gas overflow dyeing machine is ensured.

The application provides a BC battery and a preparation method thereof. The BC battery comprises a silicon substrate, the silicon substrate has opposite front and back surfaces, the front surface is provided with a front surface passivation layer, an anti-reflection layer and a patterned protective layer which are sequentially stacked, the patterned protective layer has a discontinuous structure, the back surface is provided with a P region and an N region, and the P region and the N region are provided with metal gate lines. By arranging a patterned protective layer on the front surface of the silicon substrate, the problem of scratch on the front surface of the battery is solved, the reflection of the front surface light is reduced, and the light absorption effect is improved.

The utility model relates to the technical field of valves, in particular to an ultra-large-diameter fixed ball fluorine lining ball valve which comprises a middle valve body, a left valve body is fixedly installed on the left side of the middle valve body, a right valve body is fixedly installed on the right side of the middle valve body, and a fixed ball support is fixedly installed at the bottom of the middle valve body in a penetrating mode. And a fixing shaft is rotationally installed at the upper end of the fixing ball support, a fixing ball is fixedly installed at the upper end of the fixing shaft, a handle rod penetrating through the middle valve body is fixedly installed at the top of the fixing ball, and the upper end of the connecting shaft penetrates through the supporting frame and is fixedly connected with a turbine head. According to the utility model, the fixed ball is arranged and acts on the fixed ball bracket through the fixed shaft, so that the problem that the weight of the fixed ball directly acts on the valve seat sealing ring is effectively solved, the sealing of the valve and the long-term use of the valve are ensured, and meanwhile, the fluorine-lined layer tensioning groove and the fluorine-lined layer tensioning hole are arranged, so that the service life of the valve is prolonged. The fixing ball and the handle rod can be effectively combined with the fluorine lining layer, and the fluorine lining layer is effectively prevented from being unshelled.

The fully-sealed brake comprises a cover plate used for being fixed to a motor and a shell with an opening in one side, the cover plate is matched to the opening side of the shell and defines a containing cavity, at least an armature, a friction plate and an electromagnetic coil are arranged in the containing cavity, and the fully-sealed brake is characterized by further comprising the handle; the handle is provided with a matching section connected with the shell, the matching section is constructed to be a plate body and is provided with a first through hole, the shell is constructed to be provided with a second through hole, and a first bolt penetrates through the first through hole and the second through hole; the first bolt tightly presses the matching section and the shell in the axis direction of the first bolt. Therefore, when the first bolt is tightened, the matching section is forcefully pressed to the corresponding surface of the shell in the axis direction of the bolt, so that the contact surface between the matching section and the shell is tightly attached to form a sealing interface, and long-term use of the brake in a humid or dusty environment is ensured.

The utility model discloses a building block splicing structure, which relates to the technical field of building blocks and comprises a first foundation plate, a second foundation plate and a third foundation plate, the first foundation plate, the second foundation plate and the third foundation plate are square plates with the same thickness and size, the first foundation plates are arranged on the upper portion and the lower portion of the front side of the second foundation plate, and the third foundation plates are arranged on the left side and the right side of the front side of the second foundation plate. The two first foundation plates, the two third foundation plates and the second foundation plate form a cabinet box, and a bottom plate is arranged on the lower sides of the two cabinet boxes. The foundation plate and the buckle connecting piece are designed, a stable and easy-to-disassemble structure is constructed, the overall stability and safety are enhanced, displacement and sliding are effectively prevented through the design of the clamping blocks, the gaskets, the column sleeves and the inserting columns, the shock resistance and durability are improved, the reliability in long-term use is ensured through the anti-skid lines and accurate matching, and meanwhile the anti-skid effect is achieved. And due to the flexible splicing and adjusting mode, the design has high adaptability, and various functional requirements can be met.

The utility model relates to an oil filter technical field, a kind of oil filter connecting structure, including filter cartridge, the connector for oil inlet is installed in filter cartridge upper portion, oil inlet annular groove is established between filter cartridge and connector, the thread groove is established in the upper end in the inside of filter cartridge, filter cartridge is installed in the inside by thread groove, the rotation groove is established in the upper end in the inside of filter cartridge below thread groove, the rotatable ring is rotatably installed in the inside of rotation groove, the rotatable ring surface is established with several oblique through slot, rotatable ring is provided with the cleaning assembly for cleaning the dirt on the surface of filter core. The utility model is driven by the flow force of oil inlet to make the dirt on the surface of filter core be effectively cleaned, further guarantee the filtering effect of oil filter, without setting other driving assembly in the inside, without frequently taking out filter core to clean, ensure the long-time use of filter core, prevent frequent replacement, thereby influence work efficiency.