30results about How to "Quiet environment" patented technology

The invention provides an oxygen generation air conditioner, a control method of the oxygen generation air conditioner and an oxygen generation air conditioner system. The oxygen generation air conditioner comprises an air conditioner outdoor unit which at least comprises an air compressor and is located outdoors; the air conditioner indoor unit at least comprises a molecular sieve and a filter screen, the air conditioner indoor unit is located indoors, the air compressor is connected with the molecular sieve through a pipeline, and the filter screen is located between the air compressor and the molecular sieve. According to the scheme, the problems that in the prior art, when an air compressor in an oxygen generation module works, large noise can be generated, and due to the fact that a molecular sieve and a filter screen in the oxygen generation module are designed outdoors, operation is inconvenient during replacement are solved.

The utility model provides a plate-type furniture connecting structure capable of being quickly disassembled and assembled, which relates to the technical field of furniture and comprises a first connecting plate, a second connecting plate arranged on one side of the first connecting plate, a polygonal connecting rod arranged on one side of the second connecting plate, a polygonal rod groove arranged on one side of the first connecting plate, and a curved slot arranged on the back of the first connecting plate. The multi-corner-angle connecting rods are arranged on one side of the first connecting plate and one side of the second connecting plate, a plurality of contact points and supporting faces can be provided through the multi-corner-angle design, connection is firmer, it is guaranteed that furniture is not prone to loosening in the using process, meanwhile, the multi-corner-angle connecting rods are beneficial to finding a proper position rapidly and accurately in the connecting process, dismounting and mounting operation is convenient, and the furniture connecting structure is simple in structure and convenient to use. Compared with a simple cylindrical connecting rod, the multi-corner-angle connecting rod can better resist external force, and the overall structural strength of furniture is enhanced.

The utility model discloses an efficient ventilating duct group, which comprises a fixing mechanism, a duct mechanism grouped through the fixing mechanism, and an adjusting mechanism arranged at one end of the duct mechanism, the duct mechanism comprises a duct main body, and the bottom of the duct main body is fixedly connected with an arc-shaped bent pipe; the bottom of each arc-shaped bent pipe is fixedly connected with a flow dividing pipe, and the adjusting mechanism comprises an adjusting pipe. According to the efficient ventilation pipeline set, a traditional turning connection mode is improved, the arc-shaped bent pipes are used for replacing and reducing air flowing resistance, airflow can be more smoothly transited, energy loss is reduced, and therefore the ventilation efficiency is improved; by means of the sound insulation cavity and the sound insulation cotton, sound insulation and noise reduction treatment can be carried out on noise generated when airflow in the air duct is adjusted, negative effects on health and working efficiency of people caused by the noise generated when the airflow in the pipeline is reduced and compressed are reduced, and a quieter using environment is provided.

This utility model relates to the field of toilet technology, and more particularly to a vacuum toilet deodorization and noise reduction device. It includes a negative pressure toilet, with a waste storage tank located at the rear of the toilet. A vacuum pump is installed on the top of the waste storage tank, and the vacuum pump is connected to the negative pressure toilet via a waste delivery pipe. An air outlet pipe is installed on the air outlet on one side of the top of the waste storage tank. This utility model utilizes a negative pressure vacuum self-priming pump, which guides the generated airflow to a bottom channel. This changes the traditional method of vacuum pumps where airflow is directly discharged at high speed from the side or top of the pump body. This optimized design avoids high-frequency noise generated by high-speed impact on the pump body and surrounding components during airflow discharge. Previously, directly discharged airflow would impact surrounding structures with significant force, creating harsh noise. However, guided by the bottom channel, the airflow enters the waste storage tank more smoothly, reducing noise sources caused by airflow impact, thereby effectively reducing the overall noise level of the device during operation.

The utility model provides a filtering silencer for an oxygen generator, which relates to the technical field of oxygen generator filtering silencers, and comprises a filtering barrel, a first-stage filtering net is arranged in the filtering barrel, a second-stage filtering net is arranged in the filtering barrel, the second-stage filtering net is arranged on the side of the first-stage filtering net, and the second-stage filtering net is arranged on the side of the second-stage filtering net. And a third-stage filter screen is arranged in the filter barrel and is arranged on the side of the second-stage filter screen. According to the air purifier, the third-stage filter screen, the second-stage filter screen and the first-stage filter screen are arranged in the filter barrel, so that air can be filtered layer by layer, particulate matters and pollutants in the air can be effectively removed, and purer oxygen can be provided; the outer sides of the third-stage filter screen, the second-stage filter screen and the first-stage filter screen are each provided with a sound insulation cover, the sound insulation covers are beneficial to weakening airflow noise layer by layer, the sound insulation covers are matched with a sound absorption box, noise absorption is facilitated, and therefore the noise volume is reduced.

The utility model provides a remote drainage container monitoring device which comprises a container which is located in a ward and used for containing patient drainage liquid, and further comprises a fixing base which is installed at the bottom of a sickbed and used for containing the container, a camera which is installed on the fixing base and used for monitoring the state of the container, and a server which is arranged at a nurse station and used for receiving and analyzing camera information. The monitor is used for outputting an analysis result of the server, the operation table is used for operating display content of the monitor, and the alarm device is used for giving an alarm according to a preset value of the server. According to the utility model, real-time monitoring can be realized in a nurse station, the workload of nurses is greatly reduced, a quiet environment can be provided for a ward, and meanwhile, medical personnel can intensively know the state of drainage liquid of each patient and timely process the state of the drainage liquid in the patient.

The utility model relates to the technical field of water saving of faucets, and discloses a water-saving faucet shell which comprises an outer shell, a protection assembly is fixedly connected to the outer side of the outer shell, a water stop assembly is arranged in the outer shell, and a flow guide assembly is fixedly connected to one end of the outer shell. According to the water-saving faucet shell, through the arrangement of the water stop assembly and the flow guide assembly, when the water-saving faucet shell is used, water flow impacts a connecting plate, so that an extrusion spring is in a compressed state, a water stop plug moves, the water flow enters a mounting box, and a flow guide plate in the mounting box combs and guides the water flow, so that water outlet is more uniform and gentle; when the faucet is closed, the spring is extruded to drive the connecting plate and the water stop plug to reset, and the water stop plug is tightly attached to a water flowing pipeline, so that the water flow is completely blocked, it is ensured that the faucet does not drip water or leak water, and water resource waste caused by water leakage and water dripping is reduced.

The utility model discloses a transmission assembly, a power transmission device and a vehicle, the transmission assembly comprises a power shaft, a driven gear, a transmission part and a buffer part, a driving gear is arranged on the power shaft, the driving gear is suitable for being meshed with a power output device, a matching section is formed on the power shaft, and the driven gear is arranged on the matching section in a sleeving mode; the driven gear can rotate relative to the matching section, a first circumferential matching part is arranged on the driven gear, the transmission part is arranged on the matching section and rotates synchronously with the power shaft, a second circumferential matching part is arranged on the transmission part, and the second circumferential matching part and the first circumferential matching part are arranged correspondingly. When the driven gear moves in the circumferential direction relative to the matching section, the first circumferential matching part and the second circumferential matching part get close to each other or get away from each other, the buffering piece is connected between the first circumferential matching part and the second circumferential matching part, and the buffering capacity of the transmission assembly can be improved.

The invention discloses a self-adhesive deadening felt which comprises a base material, a first deadening layer, a flame-retardant fiber layer, a microporous structure layer, a second deadening layer, an adhesive layer and a protective film layer which are stacked, the bottom of the deadening layer is connected with the top of the base material, and the top of the deadening layer is connected with the bottom of the flame-retardant fiber layer; the top of the second sound insulation layer is connected with the bottom of the density layer, the top of the flame-retardant fiber layer is in contact with the bottom of the microporous structure layer, the top of the second sound insulation layer is connected with the bottom of the adhesive layer, and the top of the adhesive layer is connected with the bottom of the protective film layer. And remarkable sound insulation, sound absorption and fire prevention effects are achieved. Firstly, the density layer can block sound waves of different frequency bands and remarkably reduce noise penetration, and the sound absorption layer adopts a porous structure, so that sound is effectively absorbed and attenuated, echoes and noise reflection in a space are reduced, and a quiet environment is created.

The invention relates to the technical field of roof waterproofing, in particular to an assembly type roof waterproof structure and waterproof system based on oblique flow guide drainage, and the assembly type roof waterproof structure based on oblique flow guide drainage is applied to a conical roof and comprises a waterproof partition plate, a fixed frame body and a movable frame body for fixing the waterproof partition plate. A buffer assembly is arranged between each movable frame body and the corresponding fixed frame body, a flow guide groove is formed in each waterproof partition plate, and a rainwater disperser is further arranged on the outer side of each waterproof partition plate. Raindrops of initial rainfall are evenly scattered through the rainwater dispersers, the kinetic energy generated when rainwater directly impacts on the waterproof partition plates is effectively relieved, and therefore the rainwater can be effectively prevented from falling off. Rainwater is promoted to form slight turbulent flow through the wavy flow guide grooves in the waterproof partition plates, the scouring effect caused by water flow concentration is avoided, impact force borne by the waterproof partition plates is effectively absorbed and dispersed in combination with the buffering assemblies, and the stability of the waterproof partition plates in extreme weather is ensured.

The invention provides a side leading-in type air duct system for a railway vehicle. The side leading-in type air duct system comprises an air duct body, an air inlet channel and air exhaust channels, wherein the air inlet channel is arranged at the top end of the air duct body and allows fresh air to enter, and the air exhaust channels are arranged on the two sides of the air duct body and used for guiding the fresh air into a passenger room.

The utility model provides a noise reduction type oxygen generator, relates to oxygen generator technical field, including the casing, the inside of casing is provided with the soundproof frame, the inner wall of soundproof frame is distributed a plurality of sound-absorbing box, the inside of sound-absorbing box is provided with the soundproof cover, the inside bottom of soundproof cover is provided with the buffer damper, and the inside bottom of soundproof cover is provided with the buffer damper. An oxygen generator is arranged at one end of the buffer damper, a box door is arranged on the side face of the shell, a sound insulation plate is arranged on the side face of the box door, and the sound insulation plate is arranged on the side of the oxygen generator. According to the utility model, a plurality of buffering dampers are arranged at the bottom of the oxygen generator, so that a buffering effect is effectively provided for the oxygen generator, vibration and noise generated by the oxygen generator during working are favorably absorbed and reduced, the sound absorption box is favorable for absorbing the noise, and the sound insulation cover and the sound insulation frame are favorable for insulating the noise; the level of noise generated during operation of the oxygen generator is effectively reduced, interference of the noise to a user is reduced, and a quiet use environment is provided.

The utility model discloses an improved sound insulation door lock which comprises an outer shell, a cover plate is arranged on the upper surface of the outer shell, sound insulation foam is arranged on the side, close to the outer shell, of the cover plate, lock holes are formed in the cover plate and the sound insulation foam, and a plurality of rubber pads are arranged on the inner wall of the outer shell. The inner wall of the side, away from the cover plate, of the shell is fixedly connected with a supporting column, the outer surface of the supporting column is movably connected with a bottom plate, the upper portion of the bottom plate is movably connected with a first fixing piece, the first fixing piece is fixedly connected to the inner wall of the shell, and the outer surface of the side, close to the cover plate, of the bottom plate is fixedly connected with a clamping tenon; a first notch is formed in the bottom plate, a spring is arranged between the first fixing piece and the cover plate, a top plate is arranged on the side, close to the cover plate, of the bottom plate, a plurality of sawteeth are arranged above and below the top plate, and a second notch is formed in the top plate. By means of the structure, external noise can be effectively prevented from entering a room, and a quieter environment is provided.

This invention relates to the field of centrifugal fans, specifically disclosing a portable energy-saving electric fan and its usage method. The fan includes a housing with a grille and a fan installed inside the housing. The fan's outlet is aligned with the grille. The top of the housing has an opening through which the fan can extend. The fan's outer casing is divided into a fixed part and at least one movable part. The movable part is movable relative to the fixed part. When the movable and fixed parts are separated, maintenance tools can be inserted into the casing to inspect the inner wall and impeller. This invention allows the fan to be lifted from the housing for easy maintenance. Furthermore, the fan's outer casing can be divided into a fixed part and at least one movable part, and the fixed and movable parts can be fixed to the fixed part without connecting parts, only by a retaining element inside the housing, facilitating maintenance and return to its original position after maintenance.

The invention provides an energy-saving and noise-reducing spiral fin condenser which comprises a temperature monitoring assembly, and the temperature monitoring assembly comprises a mounting base, a mounting frame, a fixing groove, a snakelike heat exchange pipe, an inlet pipeline, a temperature sensing patch, a temperature sensor, a sensing line and a check valve. A mounting frame is fixedly connected to the middle of the upper surface of the mounting base. Through cooperation of the temperature sensing patch and the temperature sensor, the temperature at the inlet of the condenser can be accurately monitored, allowance does not need to be reserved, accurate control over the condensing temperature can be achieved, and therefore the energy efficiency of the whole refrigerating system is greatly improved, the rotating speed of the fan can be automatically adjusted to be matched with the air volume after the temperature of the condenser is determined, and the refrigerating efficiency is improved. The heat dissipation intensity is adjusted according to actual requirements, unnecessary energy waste is avoided, the energy-saving effect is remarkably improved, meanwhile, due to the precise temperature control function and the automatic air volume adjusting function, large noise caused by excessive operation of the fan is avoided, and a quieter use environment is provided for a user.

The utility model discloses a kind of mute door groups in the technical field of acoustics engineering, including door frame, the door frame inside is connected with door panel by hinged installation, first lock tongue accommodating slot is opened in the right edge of the door panel inside, the position of the door frame corresponding to door panel first lock tongue accommodating slot is equipped with second lock tongue accommodating slot in its and the inside surface of door panel bonding;The door panel inside is equipped with a transmission groove with specific bending line, by setting transmission groove, transmission ball and other structures between door frame and door panel and reasonable layout, reach accurate stable locking purpose.Compared with traditional mechanical lock, avoid rebound sound, do not destroy quiet atmosphere, compared with magnetic attraction lock, not affected by environmental humidity and frequent opening and closing, not demagnetization, guarantee door lock suction force and security performance.When door panel is closed, trigger slider drives lock tongue to insert into slot through transmission ball, reset spring helps reset, make locking reliable, convenient operation, improve door group safety, durability and practicality.

The invention relates to the technical field of fans, in particular to a top-in and bottom-out bladeless fan mechanism. Three air guide arms are annularly and equidistantly connected to the inner side in a penetrating manner, and one ends of the inner sides of the three air guide arms are connected with a fan cabin in a penetrating manner; the inner wall of the air guide arm is provided with a ventilation channel penetrating through the fan cabin and the annular flow channel. The external centrifugal fan can extract air and exhaust the air into the annular flow channel, through the design of the flow guide air channel and the multiple flow deflectors, wind power is effectively buffered, the flow deflectors are guided to be attached to sound absorption materials at inlets, wind noise generated by air flowing is remarkably reduced, and on the premise that the ventilation effect (the wind speed reaches 1.37 m / s, and the wind area exceeds 0.8 m) is guaranteed, the ventilation efficiency is greatly improved. A relatively quiet use environment is created for a user, and the comfort is improved.

The present invention discloses an intelligent dimming glass, comprising a glass body, a dimming component and a control component. The glass body has a receiving cavity. The dimming component is arranged in the receiving cavity. The dimming component comprises a plurality of dimming layers and a plurality of conductive layers, each dimming layer is provided with a conductive layer on both sides along the thickness direction; each dimming layer comprises a plurality of optical films and a plurality of interactive light transmission patterns, the plurality of optical films are arranged at intervals, and an interactive light transmission pattern is arranged between two adjacent optical films; in two adjacent dimming layers, the optical films are partially misaligned in the stacking direction of the dimming layers. The intelligent dimming glass of the present invention, the combination of staggered and stacked optical films and interactive light transmission patterns, effectively disperses light, reduces light spots and chromatic aberration, makes the light distribution on the entire glass surface more uniform, improves visual comfort, and realizes highly accurate control of light transmittance, reflectivity and scattering rate.

The utility model relates to mechanical key switch technical field, concretely is a kind of mute mechanical key switch of silica gel reset hand feeling, it includes glue shell, lower cover and the switch assembly and reset silica gel being set between glue shell and lower cover, switch assembly includes shaft core, conducting block and connecting piece, connecting piece is connected with keyboard circuit;The lower end of shaft core is inserted with conducting block one end and is arranged, when shaft core is pressed down under force, the other end of conducting block is contacted with connecting piece and makes connecting piece and keyboard circuit conducting;Reset silica gel is set for conducting block, set between shaft core and lower cover, shaft core reset, when shaft core reset, connecting piece and key electric melting connection disconnect;Therefore, the present application solves the short board that present technical either in the mute effect is insufficient, or in response speed and maintainability.

This utility model relates to the field of curtain machine technology and discloses a positioning mechanism for a curtain machine. The positioning mechanism is mounted on a movable body on a curtain track. The positioning mechanism includes a suspension part and two sets of longitudinal pressure rollers. The suspension part is a roller rotatably mounted on the movable body and is suspended from the curtain track. The longitudinal pressure rollers are mounted on the movable body and configured to abut against the curtain track upwards under elastic force. The two sets of longitudinal pressure rollers are positioned at a height difference from the suspension part, and the two sets of longitudinal pressure rollers are located in front of and behind the suspension part along the length of the guide rail body, so that the suspension part and the two sets of longitudinal pressure rollers are triangularly distributed. The two sets of longitudinal pressure rollers and the suspension part clamp the curtain track longitudinally, thereby limiting the up-and-down swaying of the movable body, greatly enhancing the stability of the movable body on the curtain track, enabling the movable body to operate smoothly and steadily, and ensuring the reliability of the curtain opening and closing operation.

The utility model relates to the technical field of oscillating fans, in particular to a multifunctional oscillating fan which comprises an oscillating fan assembly, and the oscillating fan assembly comprises a lifting type supporting column, a fan shell installed above the lifting type supporting column and a front end cover installed on the front end face of the fan shell. A fan motor is arranged in the fan shell, an output shaft of the fan motor is connected with a fan blade shaft barrel piece with a plurality of fan blades, and a shock absorption and noise reduction assembly is arranged at the end, facing the front end cover, of the fan blade shaft barrel piece. The shock absorption and noise reduction assembly comprises two air spring buffers which are embedded in the fan blade shaft barrel piece in a back-to-back mode, a supporting and positioning shaft installed between the free end of the fan blade shaft barrel piece and the rotary connection front end cover, and silica gel shock absorption buffering sleeves which are arranged on the outer walls of the peripheral sides of the two ends of the supporting and positioning shaft in a sleeving mode respectively. And common high-frequency vibration and noise of a traditional fan are eliminated, so that a user is not interfered by the noise, and a more quiet and pleasant environment can be created.

The utility model discloses a tail upper turnover door, rear cover structure and vehicle thereof, it includes a tail upper turnover door, rear cover structure, including rear frame, and the rear frame tail is equipped with the door body mechanism, and the one side of rear frame is fixedly connected with the fender block, the door body mechanism includes the turnover door and the truck box tail door, the turnover door is connected in the rear frame top rear portion through the hinge, the truck box tail door is connected in the rear frame tail lower portion through the hinge, the turnover door and truck box tail door form the up and down double -open door structure, and both can be opened alone or simultaneously open, when the turnover door and truck box tail door close simultaneously, and the locking mechanism is locked each other between both. The utility model discloses have reduced the whole vehicle height to promote the controllability and the passability, realize the flexible intercommunication and the partition of tent and rear cover space simultaneously, and the advantage of optimizing space utilization.

The invention discloses liquid separation and purification equipment for direct drinking water, which comprises a bottom plate, a lifting assembly is fixedly mounted at the top of the bottom plate, a treatment box is fixedly mounted at the top of the lifting assembly, a limiting assembly is arranged on one side of the treatment box, a filter plate is clamped on one side of the limiting assembly, and a funnel is fixedly mounted on one side of the limiting assembly. A filter element is fixedly connected to the bottom of the funnel, and a dismounting assembly is arranged on one side of the limiting assembly. According to the liquid separation and purification equipment for the direct drinking water, through the arranged disassembly and assembly assembly, disassembly and assembly can be carried out, disassembly and assembly are easy and convenient, and after disassembly, a filter element and a filter plate can be rapidly replaced, so that replacement is more convenient and faster, and therefore the maintenance cost of the equipment is reduced; and the equipment can be ensured to keep a good filtering effect all the time, and safe and pure direct drinking water is continuously provided for a user. Meanwhile, due to the convenient disassembly and assembly design, the equipment can be prevented from being broken down.

The curtain cloth comprises a surface layer, the bottom of the surface layer is connected with a middle layer, and the bottom of the middle layer is connected with a bottom layer; according to the curtain fabric with the dustproof lower hem, the polypropylene fibers also have a good electrostatic adsorption effect, the adsorption performance of the surface layer can be further improved, and the situation that dust shakes in wind and drifts into a room, and consequently indoor dust pollution and accumulation are caused is prevented; the wear resistance of the curtain cloth can be improved while the electrostatic adsorption performance is not reduced, the polyethylene bubbles can form bubble isolation layers on the two sides of the curtain cloth and keep balance of the curtain cloth, and the nylon fibers can reduce part of heat transmitted by the polypropylene fibers and provide additional heat insulation protection, so that the curtain cloth has better heat insulation performance, and the service life of the curtain cloth is prolonged. A counterweight shot can be added at the bottom, so that the stability of the curtain cloth is kept, the performance of a sound insulation material is effectively exerted, the sound insulation effect is improved, a quiet environment is created, and the curtain cloth is more comfortable to use.

The utility model relates to centrifugal fan wheel technical field discloses a high stability's centrifugal fan wheel mounting structure, including fan shell, the inside fixedly connected with motor of fan shell, the output fixedly connected with fan wheel frame of motor, the outside of fan wheel frame is provided with fan blade, the front side of fan wheel frame is provided with dust collection mounting plate, the outside fixedly connected with ring net surface of dust collection mounting plate, the front side equidistance of dust collection mounting plate is penetrated and is connected with a plurality of fixed bolt no.

The invention discloses a quantitative constant humidity machine for a microenvironment, and belongs to the technical field of cultural relic preservation environment regulation and control equipment.The quantitative constant humidity machine comprises a machine case, a control unit is installed in the machine case, a box door is installed on the front outer surface of the machine case, a display screen and a humidity sensor are installed on the box door, and an equipment box is installed in the machine case; an air inlet and an air outlet are formed in one side wall of the equipment box, and an electrolytic dehumidification element is mounted in the equipment box; the air inlet and the air outlet are communicated with an air pipe, an air volume adjusting mechanism is arranged in the air pipe and comprises an annular plate and a plurality of air plates, the annular plate is installed on the outer surface of the air pipe, the air plates are rotatably installed in the air pipe, and the plate surfaces of the air plates are connected together to form a circle; a first connecting shaft and a second connecting shaft are fixedly installed at the two ends, close to the air pipe, of the air plate correspondingly, and the end of the first connecting shaft penetrates through the side wall of the air pipe. The constant humidity machine solves the problem that in the using process of an existing constant humidity machine, the humidity in air cannot be accurately and quantitatively controlled according to the external environment.

The air guide assembly comprises a volute and a volute tongue, the volute comprises an air guide plate, the air guide plate and the volute tongue are oppositely arranged to define an air guide channel, an air guide protrusion is arranged on the air guide plate to divide the air guide channel into a whirlwind section and an air outlet section, and the whirlwind section and the air outlet section are oppositely arranged. The volute tongue comprises an air inducing plate, the air inducing plate is one side wall of the air outlet section, and the air guiding protrusions are arranged in a protruding mode towards the air inducing plate. According to the air guide assembly, the air guide channel is divided into the cyclone section and the air outlet section through the air guide protrusions so that air can be effectively guided to flow, the air can flow out more directly and efficiently, the air flows in the air guide channel more stably and orderly, and therefore noise generated in the air flowing process is reduced.

The utility model discloses a basement side vertical wall waterproof protection plate assembly, which comprises a wall body, a fixing assembly is arranged on the wall body, the fixing assembly comprises four protection frames, a plate body, a reinforcing pad, a limiting plate, a reinforcing plate, a screw rod and a nut, the protection frames are arranged on one side of the wall body, and the plate body is arranged on the other side of the wall body. The plate body is arranged between the protection frames, the reinforcing pad is detachably installed on the top of the plate body, the limiting plate is arranged on the top of the reinforcing pad, the reinforcing plate is arranged on the top of the limiting plate, the screw rod is in threaded connection with the limiting plate and the protection frames, the nut is in threaded connection with the screw rod, and the nut abuts against the reinforcing plate. A protection assembly is arranged in the protection frame, the protection assembly comprises a deadening felt, a gypsum building plate and an aerated concrete plate, the deadening felt is arranged in the protection frame, and the gypsum building plate is arranged at the lower end of the deadening felt, so that the technical problem that glue used for bonding the waterproof plate is aged in the background technology is solved.