7results about How to "Facilitate maintenance" patented technology

The utility model relates to the technical field of window cleaning robots, and provides a window cleaning robot edge auxiliary rolling device which comprises a window cleaning robot body. The mounting grooves are formed in the four corners of the surface of the window cleaning robot body; the window cleaning robot further comprises a plurality of first springs arranged at the four corners of the surface of one side of the window cleaning robot body, and positioning pins are arranged at one ends of the first springs. When the device is in contact with a windowsill through a rubber roller during movement, the two ends of the second spring are connected to the surfaces of the L-shaped rod and the connecting rod respectively, so that the L-shaped rod swings with the circular shaft as the center, simple buffering work is completed, and the two ends of the damper and the damping spring are connected to the surfaces of the mounting base and the connecting rod respectively in a matched mode. And when the window cleaning robot collides with the windowsill, the connecting rod moves along the interior of the limiting groove through the limiting block, buffering and damping work is conducted at the same time, and damage to the window cleaning robot body caused by collision is reduced.

This utility model belongs to the field of fire protection equipment technology, specifically a mechanical fire hydrant water pressure abnormality warning device, including a warning device housing; a siphon pipe is connected to one side of the warning device housing, and a support column is fixedly connected between the top and bottom of the inner wall of the warning device housing. A piston plate is slidably connected to the surface of the support column, and a return spring is sleeved on the surface of the support column. When water enters the warning device housing through the piston plate, the water will cause the piston plate to float. When the water pressure is greater than the threshold, the piston plate moves upward, thereby causing the sliding insulating light rod and the trigger conductive block to move away from the conductive plug block, the circuit is broken, and the warning light goes out. When the water pressure is less than the threshold, the return spring causes the piston plate to move downward, the trigger conductive block moves into the conductive plug block, the circuit is connected, and the warning light illuminates. The overall structure is simple and easy to install, thereby improving the efficiency of inspection.

This utility model provides a bidirectional speed limiter with an overspeed protection structure, relating to the field of safety protection equipment technology. It includes a base and a mounting bracket. A connecting bracket is fixedly mounted on the surface of the base. The bidirectional speed limiter body is disposed on the inner side of the mounting bracket, and a connecting seat is disposed on the inner side of the connecting bracket. In this utility model, a protrusion is provided on the lower surface of the mounting bracket, and a matching groove is formed on the side of the connecting seat. This allows the mounting bracket to slide along the groove and achieve initial positioning. Then, the motor is started, causing its output end to drive the bidirectional lead screw to rotate, causing the mounting block to move the limiting rod, allowing the limiting rod to insert into the limiting hole, thereby limiting and fixing the bidirectional speed limiter body. When maintenance is required, the motor is reversed, causing the limiting rod to retract from the limiting hole. Simultaneously, the mounting bracket can easily slide out along the groove, facilitating quick disassembly of the bidirectional speed limiter body, significantly reducing maintenance difficulty and shortening maintenance time.

This utility model relates to the field of fire protection technology and discloses a fire sprinkler head assembly, including a base and an upper connecting pipe. A fixing ring is slidably connected to the inner bottom wall of the base, and a sealing plate is sleeved inside the fixing ring. A dynamic sealing component is inserted into the top of the fixing ring. An insert is fixedly connected to the bottom of the upper connecting pipe, and locking blocks are fixedly connected to both sides of the insert. A limit component is sleeved on the bottom surface of the insert. The dynamic sealing component includes a movable ring inserted into the top of the fixing ring, and several sets of support springs are fixedly connected to the top of the movable ring. A connecting ring is fixedly connected to the top of each support spring. This fire sprinkler head assembly, through the setting of the dynamic sealing component, achieves a dynamic sealing effect, effectively preventing leakage caused by pipeline pressure fluctuations or slight vibrations in non-fire conditions, ensuring long-term stable pressure within the pipeline, and improving the service life of the fire sprinkler head assembly.

The utility model discloses a kind of melt filter elements of replaceable sintering screen, it includes shell (1), two chutes (2) are equipped on the inner side wall of shell (1);The inner bottom surface of each chute (2) and each inner side wall are all bonded with sealing layer (3), each chute (2) is slidably installed with slide bar (4) in;The inner side wall between two slide bars (4) is fixedly installed with sintering screen mounting rack (5), and multiple sintering screens (6) are provided in sintering screen mounting rack (5);The top end portion between two slide bars (4) is sleeved with first sealing ring (7);Upper cover body (8) and lower cover body (9) are threadedly installed on shell (1), and second sealing ring (10) is installed in upper cover body (8) and lower cover body (9).The utility model not only can reduce maintenance cost, but also has the advantages that sintering screen replacement maintenance is convenient, work stability is high, convenient to use and filtering effect is good.

This utility model discloses a switching circuit for a gas stove controller, comprising a front-end rectifier unit, an isolator, and a rear-end switching unit connected in sequence. One input terminal of the front-end rectifier unit serves as the start-up wire connection terminal, and the other input terminal of the front-end rectifier unit is simultaneously connected to a first voltage divider and a second voltage divider. One end of the first voltage divider serves as the AC220V live wire input terminal, and one end of the second voltage divider serves as the AC220V neutral wire input terminal. This utility model uses the voltage divider point between the live and neutral wires as the control power supply terminal of the gas stove controller's switching circuit, thereby allowing the start-up wire to be connected to either the live or neutral wire without needing to distinguish the wiring, greatly simplifying on-site installation or maintenance wiring, and eliminating the problem of the product failing to power on due to incorrect wiring.

The present application relates to the field of filling element, disclose a kind of stainless steel corrugated packing, comprising: first plate body and second plate body, the outside of the first plate body is provided with second plate body, window is opened in the first plate body and second plate body, the surface of the first plate body and second plate body is opened in installation groove, the installation groove is provided with the insertion strip, the surface of the insertion strip is provided with the supporting plate, the surface of the supporting plate is fixed with corrugated plate.The stainless steel corrugated packing, corrugated plate is installed or disassembled on the first plate body and second plate body by the cooperation between insertion strip and installation groove, so as to facilitate the disassembly replacement or repair of corrugated plate, meanwhile, the first plate body and second plate body are locked together by connecting bolt, the corrugated plate between the first plate body and second plate body is staggered, can effectively increase the surface area of packing, and the channel between the first plate body, second plate body and corrugated plate can be formed, facilitate the flow of material, improve the mass transfer stability of packing.