186results about How to "Play the role of sound insulation" patented technology

The invention provides a comprehensive power supply system with a remote monitoring function. The comprehensive power supply system comprises a box, wherein the box comprises a base plate, wall bodies and a top cover, and a high-voltage room, a transformer room, a low-voltage room and an industrial personal computer are arranged in the box; in a box-type substation, the high-voltage room, the transformer room and the low-voltage room are provided with doors and windows, and exhaust fans are arranged on the windows, so that natural ventilation and mechanical ventilation are combined, and maintenance is convenient; the wall bodies and clapboards on the circumference of the substation are respectively provided with inner-layer steel plates and outer-layer steel plates, a cavity is formed between each inner-layer steel plate and outer-layer steel plate, and fireproof sound-insulation cotton is arranged in each cavity; and radiation heat-dissipation cooling coating coats the surface of each outer-layer steel plate. The radiation heat-dissipation cooling coating can radiate object heat and achieve heat-dissipation waterproof functions; and the radiation heat-dissipation cooling coating can automatic radiate the heat of the coated object to an atmospheric space, reduces surface and interior temperature of the box-type substation and also achieves a soundproof function.

The invention discloses a pillow comprising a pillow body, wherein a memory material with recoverability is arranged in the pillow body, the memory material can be memory metal or memory plastic, and two sides of the pillow are provided with sound boxes. After adopting the technical scheme, by utilizing the function of the memory material, the pillow can take the shape of a flat slab, and also can be bent into U shape, and when the pillow is in the U-shaped state, the head can be semi-wrapped by the pillow, no matter how a human body moves, the pillow can always move with the head to bear the head; meanwhile, as ears can be wrapped by the pillow, the pillow can play a role in sound insulation to certain extent, and also can play a role in keeping warm if the pillow is used in winter. As the pillow can be bent, the pillow is quite convenient to carry.

The invention provides a comprehensive power supply system with a remote monitoring function. The comprehensive power supply system comprises a box, wherein the box comprises a base plate, wall bodies and a top cover, and a high-voltage room, a transformer room, a low-voltage room and an industrial personal computer are arranged in the box; in a box-type substation, the high-voltage room, the transformer room and the low-voltage room are provided with doors and windows, and exhaust fans are arranged on the windows, so that natural ventilation and mechanical ventilation are combined, and maintenance is convenient; the wall bodies and clapboards on the circumference of the substation are respectively provided with inner-layer steel plates and outer-layer steel plates, a cavity is formed between each inner-layer steel plate and outer-layer steel plate, and fireproof sound-insulation cotton is arranged in each cavity; and radiation heat-dissipation cooling coating coats the surface of each outer-layer steel plate. The radiation heat-dissipation cooling coating can radiate object heat and achieve heat-dissipation waterproof functions; and the radiation heat-dissipation cooling coating can automatic radiate the heat of the coated object to an atmospheric space, reduces surface and interior temperature of the box-type substation and also achieves a soundproof function.

The invention provides a multifunctional comprehensive box-type substation with high integration density. The multifunctional comprehensive box-type substation comprises a box body, wherein the box body comprises a bottom plate, a wall body and a head cover; a high-voltage chamber, a transformer chamber, a low-voltage chamber and an industrial personal computer are arranged in the box body; the transformer chamber is provided with a high-voltage adjacent surface adjacent to the high-voltage chamber, a low-voltage adjacent surface adjacent to the low-voltage chamber, an outer wall adjacent to the outside and an open mesh door for passing in and out of the transformer chamber; an inner-layer steel plate and an outer-layer steel plate are arranged in the wall body surrounding the transformer chamber and a partition plate respectively; a hollow cavity is arranged between the inner-layer steel plate and the outer-layer steel plate; fireproof and soundproof cotton is arranged in the hollow cavity; the surface of the outer-layer steel plate is coated with a radiating, heat-dissipating and cooling paint; the inner-layer steel plate is arranged close to the inside of the transformer chamber; and the outer-layer steel plate is arranged outside the transformer chamber. In the box-type substation, the high-voltage chamber, the low-voltage chamber and the transformer chamber all are provided with doors and windows; and an exhaust fan is arranged on each window, so that combination of natural ventilation and mechanical ventilation is achieved; and maintenance and repair are also facilitated.

The invention relates to a cup base component mounting structure of a glass stirring cup. The cup base component mounting structure comprises a cup body, a cutter set, a base plate, a cup base and aninner cup frame. The cutter set is rotationally arranged on the base plate, and is located in an inner cavity of the cup body. An opening is formed in the bottom of the cup body. The base plate coversthe opening. The inner cup frame is arranged in the cup base. A cavity is formed in the top of the inner cup frame. A carrying platform is arranged on the inner wall of the cavity. The base plate isarranged on the carrying platform. An inner seal ring is arranged at the edge of the base plate. The inner wall, corresponding to the upper side of the carrying platform, of the cavity is in threadedconnection with the lower portion of the cup body. The inner seal ring and the edge of the base plate are compressed at the bottom of the opening. The cup base component mounting structure has the advantages that the inner cup frame is added to the cup base component mounting structure and is assembled with the base plate, and the bottom of the inner cup frame is connected to the outer portion ofthe cup base directly, so that the assembly effect is good, and water leakage caused by malalignment due to inaccurate assembly of the cup base and a glass cup is avoided.

The invention provides an externally-mounted prefabricated sandwich type thermal-insulation concrete wallboard and an assembling system and construction method thereof. The technical problem that a connecting structure between vane boards on the two sides of an existing thermal-insulation wallboard is insufficient in strength is solved by enabling steel bar truss web bars in a continuously-bent status to be connected to longitudinal reinforcing bars on an inner vane board and an outer vane board of the thermal-insulation wallboard. In addition, the externally-mounted wallboard is in assembling connection with a steel beam and a floorslab through a pre-buried bolt technical means or a split bolt technical means. Meanwhile, the self-characteristics of a steel structure are considered, and the assembly structure strength between the wallboard and the steel beam as well as between the wallboard and the floorslab is guaranteed.

The invention relates to a safety protecting and hoisting device of a safety valve calibration console, in particular to a protecting device for protecting workers during safety valve off-line calibration and a hoisting device for lifting and positioning a safety valve. The safety protecting and hoisting device comprises a clamping table, a protective wall, a hoisting mechanism and a folding baffle mechanism, wherein the protective wall is arranged between the clamping table and the hoisting mechanism, a rolling wheel guide rail is arranged in the protective wall, and the folding baffle mechanism is installed in the rolling wheel guide rail in a sliding mode. The safety protecting and hoisting device is small in occupied space, convenient to use, comprehensive in function, attractive in appearance and practical, potential safety hazard produced during the safety valve calibration is avoided, meanwhile the protective wall can further play certain sound insulation effect and enables carrying and unloading of the safety valve not to be difficult, the labor intensity of the workers is reduced, and the working efficiency is improved.

The invention discloses an active sound absorption adjustable and noiseproof earplug with a composite structure, comprising an earplug supporting body and a sound absorption body (2) arranged on the earplug supporting body, wherein the outer side of one end of the sound absorption body (2) is provided with a porous sound absorption material (4), and a micropunch plate (1) is arranged at the inner side close to the porous sound absorption material (4), while the other end of the sound absorption body (2) is provided with a rigid wall (3) capable of being adjusted and moving in the sound absorption body (2). The active sound absorption adjustable and noiseproof earplug with the composite structure can be used for selectively absorbing noise in a pertinence way to realize the adjustability of the noiseproof earplug, and ensures that the noiseproof earplug can maintain the optimal sound absorption effect in different environments.

The invention discloses an energy-saving and environment-friendly fabricated wall and an assembly method thereof, and belongs to the field of fabricated buildings. The energy-saving and environment-friendly fabricated wall comprises two supporting columns, a plurality of groups of first wall bodies, second wall bodies and third wall bodies are arranged between the two supporting columns, and the first wall bodies, the second wall bodies and the third wall bodies are connected in a spliced mode, a partition plate is arranged between the two supporting columns and located between every two adjacent sets of the first wall bodies, the second wall bodies and the third wall bodies, inserting grooves are formed in one sides of the first wall bodies and one sides of the second wall bodies, and first inserting blocks matched with the inserting grooves are fixedly connected to one sides of the second wall bodies. Rapid installation of fabricated wall can be achieved, the area and the weight of asingle wall body are reduced, hoisting equipment is not needed, the installation cost is saved, positioning connection between the wall bodies is achieved through inserting connection of the inserting blocks and the inserting grooves, direct inserting can be achieved during installation, dislocation movement of the wall bodies is prevented, and in-place installation is ensured.

The invention relates to the technical field of fireproof doors, in particular to a fireproof door. The fireproof door comprises an overhead door, an installation frame and a control device, wherein the overhead door comprises a rectangular door body, a linkage block, an external threaded transmission shaft and a driven sprocket wheel; one end of the linkage block is fixedly connected onto the upper end of the rectangular door body and the other end of the linkage block is connected onto the external threaded transmission shaft through thread; the driven sprocket wheel is fixedly connected onto the lower end of the external threaded transmission shaft; and the bottom end of the external threaded transmission shaft is rotarily connected onto the top surface of the installation frame. The fireproof door has fireproof, flame-retardant, sealing and smoke-retardant functions; in case of fire, the smoke and the fire can be blocked, the fire can be prevented from spreading indoors, and smokeentering the room to do harm to a human body can be prevented.

The invention discloses a functional thermal insulation plate for an automobile. The functional thermal insulation plate comprises a basal body carrier plate, a protective layer, a magnetic layer and a cladding layer, wherein notches are uniformly distributed in one surface of the basal body carrier plate; bulges are uniformly distributed on the other surface of the basal body carrier plate; the protective layer covers the surface in which the notches are distributed of the basal body carrier plate; the surface on which the bulges are distributed of the basal body carrier plate is coated with the magnetic layer; and the cladding layer is compounded on the surface of the magnetic layer. According to the functional thermal insulation plate for the automobile, the structural design of the thermal insulation plate is realized by adopting compounding of multi-layer structures; through the designed pyramid structure or cubic structure, the superficial area of the thermal insulation plate is increased, and sound insulation effects are achieved; the thermal insulation effects of the thermal insulation plate are improved through cooperation between thermal insulation coating and the notches; and the surface adsorption of the thermal insulation plate is realized through the composite magnetic layer.

The invention provides a carriage of a van vehicle, and belongs to the technical field of machinery. The carriage of the van vehicle solves the problems that the carriage of an existing van vehicle is larger in weigh and high in oil consumption. The carriage of the van vehicle comprises a face plate and an inner plate fixedly connected on the face plate, and further comprises a long-plate-shaped layering plate. Protruding connecting portions are arranged on the two sides of the layering plate, a layering guide rail is arranged in the middle of the layering plate, locating notches matched with the connecting portions are formed between the inner plate and an outer plate, and the connecting portions on the two sides of the layering plate are located on corresponding locating notches respectively. The carriage of the van vehicle has the advantages of being simple in structure and high in safety.

The invention provides a waterproof sound-insulation coating. The waterproof sound-insulation coating contains modified basalt fibers and a nano-scale inorganic substance with a porous structure at the same time. The modified basalt fibers can be uniformly distributed after the coating forms a film, so that transmitted sound wave energy is reduced, and a sound insulation effect is achieved. The nano-scale inorganic matter has a large number of micropores, so that the nano-scale inorganic matter has good adsorption performance. A sound absorption material and a sound insulation material are overlaid, a good sound insulation effect is generated, and the impact sound pressure level improvement amount can be increased to 20-27 db and is far higher than that of an existing product. Meanwhile, the product has better tensile strength, elongation at break and impermeability, and is a waterproof coating with better performance and higher flexibility.

The invention discloses a composite board door leaf made from construction waste and a production method thereof. The composite board door leaf comprises a doorframe (1), wherein two sides of the doorframe (1) are provided with panels (3); and the composite board door leaf is characterized in that a corrugated filler (2) is arranged in the range of the doorframe (1) between the panels (3). The composite board door leaf is simple in structure and high in sound absorption and has the application strength and sensory effect of a solid wood door, a sound insulation function is effectively realized, the wastes are changed into valuable things, the production cost is reduced, the resources are saved, the environmental pollution is reduced, and the ecological benefits of bamboo and wood processing are increased.

The invention relates to a sandwich sheet and a making method thereof. The sandwich sheet comprises an upper panel, a lower panel, bonding layers and a rock wool core, the rock wool core is connected with the upper panel and the lower panel through the bonding layers respectively, and the obtained sandwich sheet sequentially comprises the upper panel, one of the bonding layers, the rock wool core, the other one of the bonding layers and the lower panel from top to bottom. Compared with sandwich sheets in the invention, the sheet provided by the invention has the advantages of high strength, good flame retardation property, good sound insulation property and the like.

The invention discloses a capacitor with relatively low operation noise. The capacitor comprises a box shell, a capacitor core and a noise reduction plate; the capacitor core is positioned in the boxshell; the noise reduction plate is positioned on the periphery of the capacitor core, and the bottom layer and the side wall of the box shell; and the noise reduction plate is processed by phonon crystal to lower capacitor noise pollution. The noise reduction plate is formed by embedding phonon crystal unit cells in an epoxy resin substrate, wherein each phonon crystal unit cell consists of a metal sphere vibrator and a silicone rubber coating body. A vibrator performs energy depletion on the capacitor noise to reduce noise pollution, and the substrate can play an effect of sound insulation and is applicable to noise pollution treatment of the capacitor; the phonon crystal is high in noise reduction performance, so that the capacitor noise can be lowered effectively; and by virtue of thespecial structure of the phonon crystal, an obvious capacitor noise relieving effect can be achieved.

The invention discloses a wooden sound-insulation fireproof door which comprises a door frame, door leaves, door closers matched with the door leaves, a door lock, hinges and fireproof sound-insulation sealing strips. Joints of the door frame and the door leaves are isolated by the fireproof sound-insulation sealing strips, and fireproof layers are arranged on exposed surfaces of the door frame. Rectangular wooden borders are manufactured into frameworks of the door leaves, perlite is compacted in inner cavities of the frameworks, and two fireproof plates respectively fully cover two surfaces of each framework to form a fireproof structure. A sound-insulation plate with the thickness ranging from 1mm to 3mm is adhered on each fireproof plate to form a sound-insulation layer, and face plates used as exterior trimming layers are attached to surfaces of the sound-insulation plates. The wooden sound-insulation fireproof door has the advantages that the sound-insulation plates are directly composited on the fireproof plates, a fireproof function is prevented from being deteriorated, and a sound-insulation effect can be realized; and the joints of the door frame and the door leaves are isolated by the fireproof sound-insulation sealing strips, and the door is sealed tightly after being closed, and is good in sound-insulation effect.

The invention discloses a wooden door production process. The wooden door production process includes a blanking process; hot pressing and cold pressing processes; a skinning process; a primer process; a grinding process; Observe the planks first, observe whether there is glue cracking at the glued joint, whether there is obvious color difference in the veneer, and whether the pattern of the veneer is inconsistent; measure the size of the plank with a measuring ruler, and check the obtained data with the drawing. Within the range, it can be processed. If it is not within the range, it can be processed after being repaired within the error range; the hot pressing and cold pressing process: choose hot pressing or cold pressing according to the processing requirements of the wooden door. The production process of the wooden door is scientifically processed by taking natural logs as the door core, drying, and then cutting, polishing, drilling, high-speed milling and other processes. The wooden door has good sound absorption, so it effectively plays a role The role of sound insulation.

The invention provides a light-weight fireproof sound-insulating combined wallboard. The combined wallboard is divided into three layers, wherein a corrugated plate set is arranged on an inner layer and is used for preventing fire, retarding inflaming, preventing damp and reducing noise; a flexible sound-insulating felt is arranged on a middle layer, is pasted on the outer side of the corrugated plate set and is used for insulating sound and absorbing sound; and a calcium silicate board is arranged on an outer layer, is arranged on the periphery of the flexible sound-insulating felt and is used for supporting. The corrugated plate set of the light-weight fireproof sound-insulating combined wallboard provided by the invention has a hollow waterproof bonding structure, is used for reducing the wall weight and has damp-proof and noise-reducing functions; the flexible sound-insulating felt is used for enhancing the sound-insulating and noise-reducing effects; the calcium silicate board is arranged on the outer layer and is used as a strength support; the light-weight fireproof sound-insulating combined wallboard provided by the invention has the characteristics of fire protection, inflaming retarding, heat insulation, damp-proof property and sound insulation, and the weight of the light-weight fireproof sound-insulating combined wallboard is far less than the weight of a pile wall in the prior art; and the light-weight fireproof sound-insulating combined wallboard has an assembling type modularizing structure and has the characteristic of easiness in assembling and disassembling.

The invention discloses a production method of a light composite board for floor separation and a roof. The upper surface of a reinforced concrete bottom plate is coated with a structural adhesive, galvanized steel wire netting is laid on the reinforced concrete bottom plate, an SIP core board is arranged on the galvanized steel wire netting, and the reinforced concrete bottom plate, the galvanized steel wire netting and the SIP core board are aligned in the longitudinal direction; the upper surface of the SIP core board is coated with the structural adhesive, galvanized steel wire netting is laid on the SIP core board, a reinforced concrete roof board is stacked on the galvanized steel wire netting, and the SIP core board, the galvanized steel wire netting and the reinforced concrete roof board are aligned in the longitudinal direction; compaction is performed under self-weight, and all the parts are bonded and composited to form a whole after the structural adhesive is naturally solidified. According to the produced light composite board, the structure self-weight is reduced under the condition that the bearing capacity of the structure is guaranteed, and impact load which is probably caused to a lower structure under a collapse work condition is reduced.

The invention discloses a pulling type electrical control cabinet. The electrical control cabinet comprises a moistureproof base, a cabinet body, a pulling installation groove, heat dissipation louvers and a rain shelter. Universal wheels are installed at the bottom of the moistureproof base. A solar cell board is installed on the upper end of the interior of the rain shelter. The heat dissipation louves are installed on two sides of the cabinet body. Dust filtering layers are arranged at the heat dissipation louves in the cabinet body. Sound isolation layers are arranged on the inner sides of the heat dissipation louves in the cabinet body. Sliding grooves are arranged in two sides in an installation cavity. The pulling installation groove is installed in the installation cavity between the sliding grooves. Heat dissipation holes are arranged in the surface of the pulling installation groove. LED sensing lamp plates are installed on two sides in the pulling installation groove. Storage battery sets are installed on the lower end of the interior of the cabinet body. According to the invention, through the structure equipped with a series of structures, the electrical control cabinet is quite easy to overhaul, and has waterproof and dustproof functions.

The invention provides a fire door which comprises an outer door panel, an inner door panel and a frame used for connecting the outer door panel with the inner door panel, wherein the outer surface of the outer door panel and the outer surface of the inner door panel are coated with flame-retardant paint layers; two pieces of fire-proof glass are respectively arranged on the inner sides of the outer door panel and the inner door panel; fire-proof insulation boards are respectively arranged between the outer door panel and one piece of fire-proof glass and between the inner door panel and the other piece of fire-proof glass; a framework is arranged between the two pieces of fire-proof glass and used for supporting the fire-proof glass; the interior of the framework is filled with fire-proof materials. The fire door has the benefits that the framework is arranged between the two pieces of fire-proof glass and used for supporting the fire-proof glass, the fire-proof glass on the inner sides of the outer door panel and the inner door panel plays a role of fire protection, and the fire-proof insulation boards are respectively arranged between the outer door panel and one piece of fire-proof glass and between the inner door panel and the other piece of fire-proof glass, which play a role of sound insulation; the fire door has the advantages of simple structure, safety in use, fire protection, sound insulation and the like.

The invention discloses a lifting door convenient to mount. The lifting door comprises a base lifting frame, an upper end limiting plate, a supporting mechanism, a folding door and a connecting plate.The lower end of the base lifting frame and an external connection lifting device are connected and fixed, the upper end of the base lifting frame and the connecting plate are connected through a hinge and are fixed together, the connecting plate is divided into an upper plate and a lower plate, the upper portion of the connecting plate on the upper end is connected to the end face of the upper end limiting plate through a hinge, the folding door is connected to the lower portion of the connecting plate on the upper end, the upper portion of the connecting plate on the lower end is connectedwith the folding door, and the lower portion of the connecting plate on the lower end is connected with the base lifting frame. The lifting door is simple and reasonable in design, easy and convenientto operate and convenient to mount. The lifting door can be conveniently mounted in walls on the two sides of the lifting door through supporting steel frames on the two ends, through rubber plates and rubber grooves of two adjacent folding doors, the sound insulation effect of the folding door can be improved, and the rubber plates can prevent fingers from being hurt due to pinch in the foldingprocess.

The invention discloses a wall brick with a glaze layer. The wall brick comprises a brick body, wherein positioning bulges are arranged on the upper surface of the brick body; positioning grooves matched with the positioning bulges are formed in the lower surface of the brick body; when a wall is built with the wall brick, the positioning grooves in the lower surface of a wall brick on an upper layer are connected with the positioning bulges on the upper surface of the wall brick on a lower layer in an insertion manner; an inserting grooves are formed in the a surface of one end of the brick body; an inserting head is arranged on the surface of the other end of the brick body; and when the wall is built with the brick body, the inserting head at one end of the brick body is inserted into the inserting groove in the other end of an adjacent brick body. Due to adoption of the glaze layer on the side surface of the brick body, decorative working such as cement coating, ceramic brick attachment or painting is not needed for the wall body; as two ends of adjacent wall bricks are connected in the insertion manner, the wall brick has the characteristics of being high in integrality and very high in solidness; and due to addition of the positioning bulges and the positioning grooves in the surface of the brick body, a very straight wall can be built by a green hand without wall building experience, and inclination can be avoided.

The invention discloses a sleep-helping massage mattresswhich comprises a mattress body. Aplurality of vibration devices are arranged on the mattress body, the vibration devices are evenly distributed along the mattress body, and the vibration devices comprise base parts. The base partsare provided with air flow cavities, air inlet passages and air outlet passages, theair inlet passages and air outlet passagescommunicate with the air flow cavities. The air flow cavitiesare internally provided with rolling bodies driven by air flow, and the mattress body is provided withair generating devices connected to the air inlet passagesof the vibration devices. The sleep-helping massage mattress is simple in structure, low in cost, safe to use and better in vibration massage effect.

A fan head includes a first cavity and a second cavity each having a column shape, the second cavity is located in the first cavity, the side surface of the first cavity is arranged along the first The side of the second cavity is provided with a second air outlet along the length direction of the second cavity, the opening direction of the second air outlet is different from the direction of theopening of the first air outlet. The bottom surface of the second cavity is provided with an air inlet communicating with the second air outlet; an airflow passage communicating with the second air outlet and the first air outlet is formed between the inner surface of the first cavity and the outer surface of the second cavity. In the fan, the air flow enters and exits the second cavity through the air inlet, and is jetted outward through the second air outlet, the air flow passage and the first air outlet, so that the flow path of the air flow in the fan head increases to eliminate or weakenthe noise effect, and at the same time, the inner and outer two-layer cavities can also play the role of sound insulation, thereby realizing the low-noise fan head and enhancing the user experience.

The invention discloses a cowl and a ventilation system. According to the cowl and the ventilation system, the technical problems that as for an existing cowl, leakage of rain is likely to occur, airflow is difficult to disperse, the occupied space is large, and manufacturing and mounting are difficult are solved. The cowl comprises a cowl body, an air inlet flow guide plate and an air outlet flowguide plate. The cowl body comprises an air outlet side plate and a cover plate fixed to the top of the air outlet side plate in an airtight mode, the air outlet side plate is in an inverted-pyramid-frustum cylinder shape and is provided with air outlets, and a cowl air inlet is formed in the bottom of the air outlet side plate. The air inlet flow guide plate is fixed in the cowl body and guidesairflow entering from the cowl air inlet to the air outlets of the air outlet side plate. The air outlet flow guide plate is fixed to the outer side of the air outlet side plate, comprises a side plate part and a bottom plate part connected with the bottom of the side plate part, and guides the airflow exhausted from the air outlets to the upper portion of the cowl, and the bottom plate part is inairtight connection with the air outlet side plate and is provided with a drainage hole.

The invention discloses a swing sleep promoting and massaging bed. The swing sleep promoting and massaging bed comprises a mattress, a bedstead and a foundation support, wherein the mattress is mounted and fixed on the bedstead; a swinging assembly for driving the bedstead and the mattress to integrally swing is arranged on the foundation support; the mattress consists of a hard layer on the lowerlayer and a flexible layer on the upper layer; the hard layer is mounted and fixed on the bedstead in a cooperation manner; massaging air sacs and a vibrating mechanism are arranged on the flexible layer; lifting air sacs for driving the head end and the tail end of the flexible layer to obliquely tilt are arranged on the hard layer; a control box for driving the massaging air sacs, the lifting air sacs and the vibrating mechanism to operate is also arranged on the mattress; the swinging assembly comprises a swinging arm and a driving mechanism; one end of the swinging arm is connected with the bedstead and is used for supporting the bedstead, and the other end of the swinging arm is driven by a driving mechanism to be in reciprocating movement in an upward concave arc-shaped track; and two farthest ends of the arc-shaped track separately face to the head end direction and the tail end direction of the bedstead. The swing sleep promoting and massaging bed disclosed by the invention issimple in structure, has definite massaging and health-care efficacy, and has better comfortability and better sleep promoting effects when being used.

The invention discloses a multifunctional intelligent eye patch, and belongs to the technical field of sleep aids. The eye patch comprises a power supply, an elastic girdle and an electric wire. An elongated shading belt is arranged on the elastic girdle, a plurality of side massage heads are uniformly arranged on two sides of the inner side face of the shading belt, a plurality of middle massageheads are arranged in the middle of the inner side face of the shading belt, and a shading sleeve covers the shading belt, and a girdle sleeve covers the elastic girdle. The eye patch solves the problem that an existing eye patch is single in structure and uncomfortable to wear. The eye patch is simple in structure and low in cost and has functions of acupuncture point massage and the like, lightcan be effectively shaded and discomfort at the back of an ear can be eliminated when a user wears the eye patch in sleep, and practicability is greatly enhanced.

The invention provides a carriage of a van vehicle, and belongs to the technical field of machinery. The carriage solves problems of heavy weight and loud noise of an existing carriage of a van vehicle. A carriage body of the carriage of the van vehicle comprises a sandwich layer, an inner layer and an outer layer, the inner layer and the outer layer are respectively fixedly connected to two sides of the sandwich layer, the sandwich layer is in the shape of a honeycomb mesh, and the inner layer and the outer layer cover two ports of the honeycomb mesh of the sandwich layer, so that the honeycomb mesh is sealed. The carriage of the van vehicle has the advantages of light weight, good noise insulation effect, high strength and the like.