440results about How to "Improve sound insulation" patented technology

The utility model relates to the technical field of building materials, in particular to an assembly type PC wallboard structure which comprises two butt-joint openings symmetrically formed in the bottom end of a wallboard body, two clamping plates are symmetrically arranged in the butt-joint openings, sliding columns in sliding connection with the wallboard body are fixedly connected to the side walls of the two clamping plates, and the side walls of the two clamping plates are fixedly connected with the bottom end of the wallboard body. The top of the wallboard body is symmetrically and fixedly connected with one ends of two connecting columns. According to the wall board, the two T-shaped blocks on the top of the wall board body are inserted into the grooves in the bottom end of the other wall board body, when the T-shaped blocks abut against the inclined plane portions of the clamping plates in a sliding mode, the clamping plates can abut against the two sides by a certain distance, and then the clamping plates are rapidly reset under extrusion of the reset springs; the T-shaped block can be clamped and positioned through the two clamping plates, so that the T-shaped block can be limited through the butt joint opening in the bottom end of the wallboard body and the cover plate, the PC wallboard can be quickly assembled, and the assembling efficiency of the PC wallboard is improved.

The invention belongs to the technical field of court ground materials, and particularly relates to a ground material of a ground throw court and a preparation method thereof. The ground material of the ground throwing field comprises the anti-skid surface layer, the elastic buffer layer and the sound insulation layer from top to bottom, and has excellent sound insulation, impact resistance and wear resistance. The polyvinyl butyral bonded acrylic sound insulation felt and the jute fiber board are used as a sound insulation felt composite material to be laid on the surface of the base layer, so that the sound insulation effect of the ground of the ground throwing field is enhanced, boric acid and phenylboronic acid are compounded to react with siloxane, and reinforced gel prepared by adding a reinforcing material has excellent shear hardening and thermal stability, so that the sound insulation effect of the ground of the ground throwing field is improved. An elastic reinforcing material is prepared by compounding alkali-treated straw fibers and a reinforcing body prepared by compounding the alkali-treated straw fibers and a hydrophobically modified sponge framework, and has remarkable creep resistance and excellent impact hardenability, and the esterified straw fibers prepared by reacting the alkali-treated straw fibers with citric acid are used as a toughening agent to be added into wear-resistant elastic microspheres prepared by rubber, so that the wear-resistant performance of the wear-resistant elastic microspheres is greatly improved. The material has excellent wear resistance, light weight and aging resistance.

The utility model relates to a folding shed structure which comprises a plurality of edge covering clamping pieces and a folding shed body. Wherein the vestibule shed body comprises a plurality of vestibule shed rings, and each vestibule shed ring comprises an outer shed cloth layer, a middle shed cloth layer and an inner shed cloth layer; the outer-layer shed cloth and the middle-layer shed cloth are connected and combined to form a first cavity, the inner-layer shed cloth and the middle-layer shed cloth are connected and combined to form a second cavity, and the overlapping positions of the ends of the middle-layer shed cloth and the outer-layer shed cloth of the adjacent folding shed rings are clamped and connected through edge-covering clamping pieces. According to the folding shed structure, on the premise that the sound insulation performance is improved, the space requirement for installation of the folding shed is reduced, the total weight of the folding shed structure is reduced, the development requirements for compact space and light weight of the folding shed structure are met, meanwhile, the outer-layer folding shed ring plays a role in shielding the sewing lap joint position of the inner folding shed ring, and good rainproof and airtight performance is achieved.

The utility model discloses a glass curtain wall with a high-strength connecting structure, which belongs to the technical field of glass curtain walls, and is technically characterized by comprising a curtain wall main body, and the curtain wall main body is of a three-layer stacking structure through an arranged butt joint stable mounting mechanism. The transparent sound insulation film for sound insulation is arranged at the joint of the inner-layer curtain wall body and the outer-layer curtain wall body, so that the sound insulation performance of the glass curtain wall is improved, meanwhile, the butt-joint stable installation mechanism also prevents external dust and water from entering a butt-joint installation gap, installation sealing protection of the glass curtain wall is achieved, and the service life of the glass curtain wall is prolonged. In addition, the overall installation stability of the curtain wall is correspondingly achieved through the butt joint stable installation mechanism, the supporting strength and rigidity of the glass curtain wall in use are remarkably improved, the stability is high, vibration and pressure can be buffered and dispersed through the arranged pressure-resistant buffering mechanism, pressure-resistant protection of the glass curtain wall is achieved, the pressure-resistant and anti-seismic performance is high, and the service life of the glass curtain wall is prolonged. The connecting structure has the advantages of good connecting stability and high strength.

The invention relates to the technical field of honeycomb plates, and discloses a decoration soundproof environment-friendly honeycomb aluminum plate which comprises a mounting plate and a honeycomb core, a round seat is mounted in the honeycomb core, a sound absorption chamber is arranged in the middle of the round seat, round holes are formed in the outer surface of the sound absorption chamber, and an abutting mechanism is arranged in the bottom end of the round seat; and the abutting mechanism comprises an abutting rod located at the bottom end of the interior of the round base, and a round hole is formed in the outer surface of the sound absorption chamber. By arranging the round seats, the sound absorption chamber and the round holes, a proper number of round seats can be mounted in the honeycomb core according to the specific requirements of operators, when sound waves are transmitted through the honeycomb core, the sound waves impact the outer surfaces of the round seats and the sound absorption chamber, the transmission path and characteristics of the sound waves are changed, and then sound wave energy is consumed; and in addition, the multiple sound absorption balls are arranged, sound waves are further absorbed, and therefore the sound insulation performance of the whole honeycomb plate is enhanced.

The invention belongs to the technical field of novel fabricated buildings, and particularly relates to a method for forming an outer wall by multiple layers of wallboards and a steel structure, a plurality of wallboards which are mutually inserted are included, an outer wall layer is formed by pouring ceramsite and concrete, and an inner wall layer is made of aerated concrete; the assembling modules are formed by the C-shaped steel and the wallboards capable of being assembled, the connecting strength and stability between the wallboards are greatly improved during construction, the wallboards are installed on the H-shaped steel frame through laser ranging, radar positioning, a mechanical arm and the like, and a rigid and hard outer wall is built; the wallboard can be hoisted and inserted into the H-shaped steel structure at a time after the ground and the C-shaped steel are combined into a large panel, the multi-layer wallboard is of a double-layer new material structure or a sandwich new material structure, the whole wallboard is of a lightweight design, the overall weight of the wall is reduced, meanwhile, the excellent strength is achieved, and the wall bodies are assembled conveniently and rapidly.

The invention relates to a sound-proof and fireproof integrated assembly type partition wall keel which comprises decorative plates, fireproof and sound-proof rock wool plates and damping cores, every two adjacent decorative plates are connected through a connecting piece, transverse keels are installed on the inner sides of the decorative plates in the horizontal direction, and vertical keels are installed on the inner sides of the decorative plates in the vertical direction. The two fireproof sound insulation rock wool boards are installed in an inner cavity formed between the transverse keels and the vertical keels, the sound insulation boards are installed between the two fireproof sound insulation rock wool boards, the damping core is installed between the front vertical keel and the rear vertical keel, and the damping core tensions the front vertical keel and the rear vertical keel and further tensions the left sound insulation board and the right sound insulation board. According to the decorative wallboard, all the components are tensioned or pressed through the damping core, the components can be integrally assembled together, and the sound insulation and noise reduction performance of a product is greatly improved.

The utility model relates to a sound insulation and noise reduction aluminum alloy window, which belongs to the technical field of aluminum alloy windows and comprises an aluminum alloy frame and two aluminum alloy window bodies. A plurality of springs are arranged on the upper portion in the aluminum alloy frame, the upper ends of the springs are fixed in the aluminum alloy frame, the lower ends of the springs are fixedly connected with a supporting plate, and the lower end of the supporting plate is connected with a sliding rail used for fixing the aluminum alloy window body and enabling the upper portion of the aluminum alloy window body to slide. An arc-shaped sliding groove matched with the aluminum alloy window body is formed in the lower portion of the interior of the aluminum alloy frame. Sliding grooves matched with the sliding rails are formed in the top end of the aluminum alloy window body, and a plurality of steel ball rollers are fixedly mounted at the bottom end of the aluminum alloy window body; a telescopic first sound insulation cotton strip is arranged in the inner window body at the joint of the two aluminum alloy window bodies. The aluminum alloy window body can be conveniently installed in the aluminum alloy frame through the telescopic effect of the spring, the sliding rail is tightly attached to the sliding groove of the aluminum alloy window body through the gravity effect of the supporting plate and the sliding rail, and the influence of noise on residents is reduced.

The utility model relates to the technical field of building curtain walls, in particular to a combined building curtain wall. Comprising a rectangular mounting frame and a curtain wall body. A plurality of wall-attached supports are mounted on the rectangular mounting frame, and mounting holes are formed in the wall-attached supports; sealing long strips are arranged on two adjacent side edges of the rectangular mounting frame, and slots matched with the sealing long strips are formed in the other two side edges of the rectangular mounting frame; the curtain wall main body is detachably mounted on the rectangular mounting frame through a plurality of connecting pieces, the curtain wall main body comprises a curtain wall frame and curtain wall glass, and the curtain wall glass is mounted on the inner side of the curtain wall frame; a rectangular sealing strip b is arranged on the curtain wall frame, and a rectangular sealing groove matched with the rectangular sealing strip b is formed in the rectangular installation frame. After being installed, the curtain wall main body has good waterproof, heat insulation and sound insulation effects.

The invention discloses an embedded external wall panel connecting structure of a steel structure transformer substation. The embedded external wall panel connecting structure comprises two Z-shaped first connecting steel plates and two Z-shaped second connecting steel plates. The first connecting steel plate and the second connecting steel plate are respectively provided with a first connecting part and a second connecting part which are parallel to each other; the first connecting parts of the two first connecting steel plates are respectively connected with the inner wall surface and the outer wall surface of the embedded external wall panel through first fasteners; the first connecting parts of the two second connecting steel plates are connected with the inner wall face and the outer wall face of the stand column through second fasteners correspondingly. The second connecting parts of the adjacent first connecting steel plate and second connecting steel plate are connected; and all the second connecting parts are positioned in gaps between the embedded external wall panels and the upright posts. According to the invention, the deformation coordination of the embedded external wall panel and the stand column in a loaded state is met.

The invention relates to the technical field of air conditioning equipment, in particular to an air treatment air cabinet. The air handling air cabinet comprises a shell, an air duct is arranged in the shell, and the air duct comprises an air return channel, a heat exchange channel and an air supply channel which are sequentially arranged in the air flow direction; the air return channel and the air supply channel are arranged side by side in parallel, so that the air channel is of a U-shaped structure. The heat exchanger comprises a filter module, a heat exchange module, a fan module and a silencing module. According to the embodiment of the invention, the air duct is arranged to be of the U-shaped structure, so that the flowing path of air in the air cabinet is more reasonable, the air flowing resistance is reduced to a certain extent, and the air treatment efficiency is improved. Due to the fact that the filtering module is mainly installed in the air return channel, the space occupied by the filtering module is sufficient, under the condition of the same air passing area, the filtering module can be thicker, the whole unfolded filtering area is larger, the service life is longer, and the replacement period of the filtering module is greatly prolonged.

The utility model discloses a fast-assembly type electrolytic steel plate wallboard which comprises a plurality of electrolytic steel plates, fixing assemblies are installed above and below the electrolytic steel plates, connecting assemblies are arranged on the side faces of the electrolytic steel plates, and first limiting assemblies are installed on the two sides of each connecting assembly. The two sides of the fast-assembly type electrolytic steel plate wallboard can be conveniently subjected to auxiliary limiting, the situation that the electrolytic steel plate wallboard shakes or disengages in the installation process can be reduced, the stabilization function of the electrolytic steel plate wallboard can be improved, meanwhile, the electrolytic steel plate wallboard can be conveniently and rapidly installed, and the fixing assembly is arranged on the electrolytic steel plate, so that the installation efficiency is improved. A plurality of electrolytic steel plate wallboards can be conveniently fixed in an auxiliary mode, the firmness of the electrolytic steel plate wallboards can be improved, meanwhile, the electrolytic steel plate wallboards can be conveniently reinforced and rapidly installed through the connecting assemblies arranged on the electrolytic steel plates, and the sound insulation performance of the electrolytic steel plate wallboards can be improved through sound insulation cotton arranged on the electrolytic steel plates.

The utility model relates to the technical field of gypsum wallboards, and discloses a sound insulation gypsum wallboard which comprises a gypsum wallboard body, a splicing groove is formed in the front face of the gypsum wallboard body, the inner wall of the splicing groove is movably connected with a splicing rod, one end of the splicing rod is fixedly connected with a sound insulation board, and the other end of the splicing rod is fixedly connected with a sound insulation board. The outer wall of the sound insulation plate is fixedly connected with first sound insulation cotton, the outer wall of the first sound insulation cotton is fixedly connected with second sound insulation cotton, and the outer wall of the second sound insulation cotton is fixedly connected with a sound absorption plate. According to the sound insulation gypsum wallboard, through the arrangement of the gypsum wallboard body, the sound insulation boards, the splicing grooves, the splicing rods, the first sound insulation cotton, the second sound insulation cotton and the sound absorption boards, the sound insulation effect of the gypsum wallboard can be improved in the using process of the gypsum wallboard, and noise can be well blocked; therefore, after the gypsum wallboard is installed and used, a quiet living or working environment can be built for people, and the using effect of the gypsum wallboard is further improved.

The application relates to the field of assembly building technology and discloses an assembled sound insulation and shock absorption laminated floor slab, which comprises a pouring plate, the outer part of the pouring plate is provided with a cladding structure, the cladding structure comprises a main frame, a side stop, an upper stop rod and a connecting groove, the two upper stop rods are fixedly installed on the side stop, the upper stop rod can be detachably connected with the main frame and forms a box body structure to cladding the pouring plate, a connecting groove is arranged on one side of the main frame, and a protrusion is fixedly arranged on the other side of the main frame; and a cushion block assembly, the pouring plate is assembled with the main frame, the side stop and the upper stop rod at a construction site after being prefabricated in a factory, the modular design makes the components separable for transportation, the size and weight of a transportation unit are greatly reduced, the transportation cost and hoisting difficulty are reduced, the on-site assembly is flexible, the size deviation of the actual installation position can be fine-tuned, and the adaptability is high.

The application provides an automobile engine compartment drainage air intake system and a vehicle, and belongs to the technical field of automobile parts, wherein the automobile engine compartment drainage air intake system comprises a ventilation cover plate, an air chamber, a left drainage groove structure and a right drainage groove structure; the middle part of the top plate of the air chamber is concave downward, and an accommodation space extending along the length direction of the air chamber is formed between the top plate and the ventilation cover plate; the left drainage groove structure is arranged below the ventilation cover plate; the right drainage groove structure comprises a drainage groove body, the drainage groove body is arranged in the accommodation space, and the opening of the drainage groove body is communicated with the water inlet. The automobile engine compartment drainage air intake system provided by the application correspondingly sets the drainage groove structure as the left drainage groove structure and the right drainage groove structure; two drainage groove structures are used for drainage respectively, so that the drainage groove structure does not span the width direction of the vehicle body, the space occupation area of the drainage groove is smaller, the size of the engine compartment is reduced, the layout in the engine compartment is optimized, and the engine compartment maintenance is facilitated.

The utility model relates to the technical fields of rail transit especially, a kind of high-speed rail vehicle porous corrugated modeling composite middle roof;Including surface panel, intermediate layer core material, backboard, the surface panel, the intermediate layer core material, the backboard are formed composite middle roof by composite glue composite;The surface panel is porous aluminum plate structure, is provided with corrugated modeling 1-1, the composite filling area is set in the intermediate layer between the parallel surface area of the surface panel and the backboard, and several groups of the intermediate layer core material are set in the composite filling area, and the area outside the composite filling area on the surface panel is provided with decorative hole and can penetrate the structure of the composite middle roof, meet the original decoration and the function premise of convenient inspection door under, further improve sound insulation and thermal insulation performance, while having better stiffness, can reduce the effect of the component vibration when train operation.

The utility model discloses an antibacterial automobile carpet sound insulation pad which comprises a carpet sound insulation pad body, carpet burrs are arranged at the upper end of the carpet sound insulation pad body, porous silica gel is installed on the outer wall of the carpet sound insulation pad body, a copper sheet and a zinc sheet are installed on the surface of the porous silica gel, and a rubber suction cup is connected to the bottom of the carpet sound insulation pad body. A wear-resistant layer A is arranged on the outer layer of the carpet sound insulation pad main body, a bamboo fiber layer A is connected to one side of the wear-resistant layer A, a sound insulation cotton layer A is connected to one side of the bamboo fiber layer A, a carpet base layer is connected to the bottom of the sound insulation cotton layer A, a sound insulation cotton layer B is arranged on one side of the carpet base layer, a bamboo fiber layer B is connected to one side of the sound insulation cotton layer B, and a wear-resistant layer B is connected to the bottom of the bamboo fiber layer B; according to the carpet sound insulation pad, the unique design of the carpet sound insulation pad body enables noise in an automobile to be obviously reduced. Due to the arrangement of carpet burrs, the attractiveness of the carpet is improved, and meanwhile the comfort level of passengers is improved.

The utility model relates to photovoltaic module technical field, concretely relates to a BIPV photovoltaic module with sound insulation function, including frame main part, frame main part includes the outer frame and the inner frame at the inner side surface of outer frame, and the outer frame front surface is equipped with two symmetrically distributed clamping grooves, and the photovoltaic board is installed to the common clamping of two clamping grooves, and the photovoltaic board is provided with two symmetrically arranged sealing pads between the outer frame, and the inner side surface of inner frame is provided with sound insulation board, and the sound insulation board front surface is equipped with several even arrangement well-shaped recesses, several notches and several polygonal recesses, and the inner side surface of notch is provided with several hemispherical protrusions, through the several well-shaped recesses, notch, polygonal recess and arc-shaped recess of sound insulation board front surface, can reflect, refract and absorb sound, effectively enhance the sound insulation effect of sound insulation board, thereby make the whole photovoltaic module have good sound insulation performance, can effectively block outside noise, and be favorable to practical use.

The utility model belongs to an aluminum-steel-wood composite heat insulation door frame which comprises a solid wood inner frame and is characterized in that a right shoulder and a first groove are arranged on the right side of the solid wood inner frame, a left shoulder is arranged on the left side of the solid wood inner frame, and an outer frame fixing hole is formed in the upper plane of the solid wood inner frame; and the outer frame is arranged on the outer frame fixing hole of the right circular bead and the upper surface of the left circular bead of the solid wood inner frame. The outer frame right fixing leg of the outer frame is connected with the solid wood inner frame, and the outer frame left fixing leg is fixedly connected with the solid wood inner frame through screws. A lining frame is arranged on the left side below the outer frame; corner connectors are arranged on the two sides between the upper face of the lining frame and the outer frame. The door has good heat insulation, heat preservation and sound insulation performance, and is particularly suitable for doors with high-grade use performance.

The utility model discloses a composite wooden door suitable for people with lower body resistance, which belongs to the field of furniture and comprises a frame, an upper composite wood paste plate and a lower composite wood paste plate, the upper composite wood paste plate and the lower composite wood paste plate are mounted in the frame and respectively sequentially comprise a first surface layer, a core layer and a second surface layer, the core layer is positioned between the first surface layer and the second surface layer, and the second surface layer is positioned between the core layer and the second surface layer. And the frame is filled with a filling layer. The sound insulation effect is good, the formaldehyde emission is extremely low and reaches the HENF level smaller than or equal to 0.025 mg / m, and the cost is low.

This utility model application discloses an indoor decorative sound insulation structure, including a sound insulation base plate, two sets of sound insulation modules, and a panel. Sound insulation modules are provided on both sides of the sound insulation base plate. Each sound insulation module includes a sound insulation reflector and several sound-absorbing sleeves. The sound insulation reflector is fixedly installed on the side of the sound insulation base plate. This indoor decorative sound insulation structure, by providing sound insulation modules on both sides of the sound insulation base plate, allows sound transmitted from both sides of the device to be reflected and isolated. Through the reflective grooves and guide protrusions of the sound insulation reflector, some sound waves can be reflected and canceled out, thus actively eliminating some sound and improving the sound insulation effect. Simultaneously, the sound-absorbing sleeves further isolate sound and reflect and guide it, further enhancing sound absorption and insulation. This structure can effectively enhance the sound insulation effect of the wall and reduce the transmission of noise indoors and outdoors.

This utility model discloses a wall hole sealing device for building construction, comprising a columnar sealing body adapted to the size of the pre-reserved hole in the wall, a central hole penetrating the center of the sealing body, an expansion mechanism penetrating the central hole inside the sealing body, and a vertical through groove on the outer wall of the sealing body for changing the diameter of the sealing body under the action of the expansion mechanism; several anti-slip protrusions are evenly arranged on the outer circumference of the sealing body to enhance the friction between the sealing body and the wall; a sealing rubber sleeve is fitted on the outer circumference of the sealing body to improve the sealing performance between the sealing body and the wall hole. The wall hole sealing device provided by this utility model, through the design of the expansion mechanism, enables the sealing body to fit tightly against the wall, increasing the friction and adhesion between the sealing device and the wall, effectively preventing the sealing device from loosening or falling off, and improving the sealing firmness.

The utility model relates to the related technical field of sound insulation wall structures, and discloses a wall structure with a sound insulation function, which comprises a base layer wall, a first damping layer, a main sound insulation layer, a Helmholtz resonant cavity, a second damping layer and a facing layer, and a conical sound absorption wedge array is arranged in the Helmholtz resonant cavity. The sound insulation index of sound waves can be improved through the arrangement of the main sound insulation layer, and an effective air flow resistance optimization structure can be formed along with the arrangement of the conical sound absorption wedges in the Helmholtz resonant cavity, so that the aim of effectively absorbing sound is ensured; and through the arrangement of the first damping layer and the second damping layer, the inherent frequency of the wall body can be shifted to a non-sensitive frequency band, so that the vibration energy is attenuated, and the effective sound insulation purpose of the whole wall body structure is achieved.

The invention relates to the technical field of composite materials, in particular to a synergistic flame-retardant epoxy resin-based porous sound insulation composite material and application thereof. The raw materials comprise 100 parts of bisphenol A epoxy resin, 15 parts of an aliphatic amine curing agent, 12 parts of ammonium dihydrogen phosphate, 6 parts of melamine, 4 parts of nano silicon dioxide, 5 parts of sodium chloride, 2 parts of ammonium bicarbonate, 0.8 part of carbon nanotubes and 0.5 part of a silane coupling agent. The synergistic flame-retardant epoxy resin-based porous sound-insulation composite material provided by the invention effectively solves the technical bottleneck that the flame-retardant, sound-insulation and mechanical properties of an epoxy resin-based material in the prior art are difficult to synergistically improve, and has remarkable beneficial effects in multiple aspects.

The utility model discloses a household double-scene mute door in the technical field of door sound insulation and sealing structure optimization, which comprises a door frame and a door plate, the door frame is formed by fastening a plurality of main body profiles, a strong magnet mounting groove is arranged between the inner wall and the outer wall of each main body profile, a first strong magnet is arranged in the strong magnet mounting groove and is not exposed, and sound insulation grooves are arranged on the upper, left and right surfaces of the door plate parallel to the door frame. The sound-blocking module is movably installed in the groove and composed of a bottom plate, a second strong magnet and sound-blocking cotton, the second strong magnet is located between the bottom plate and the sound-blocking cotton, and stable supporting is provided by means of the large size of the bottom plate. When the door is closed, the first strong magnet and the second strong magnet attract each other, the sound blocking module, the first strong magnet, the sound blocking cotton and the like are located on the same vertical plane and tightly attached to block sound, the reset springs on the two sides of the door plate reset the sound blocking module to the sound insulation groove only when the door is opened, and the sound insulation performance is greatly improved while normal door opening and closing operation is not affected; indoor and outdoor sound interference is effectively reduced, and a quiet and comfortable environment is created for users.

The utility model belongs to the technical field of home furnishing, and discloses an indoor composite door device which comprises a door leaf, a door frame assembly and a door pocket line set, and the door frame assembly comprises two side plate assemblies connected with the two sides of a wall opening and a top plate connected with the top of the wall opening; the side plate assembly comprises a connecting plate, a door frame main plate and a door frame auxiliary plate, the connecting plate is installed on a corresponding wall through at least one first fastener, the front end of the door frame auxiliary plate is connected with the rear end of the door frame main plate, and the door frame main plate and the door frame auxiliary plate are installed on the connecting plate through at least one second fastener. The door pocket line set comprises at least one front door pocket line and at least one rear door pocket line, one end of the front door pocket line is installed at the front end of the corresponding door frame main board, the structure is simple, installation and debugging are convenient, and the size of the door frame can be freely adjusted according to different installation environments.

The utility model discloses an outward-flat inward-opening type extremely simple door frame, which relates to the technical field of door frames and comprises a main sleeve and an auxiliary sleeve, an installation clamping groove is arranged on the rear side of the main sleeve, the auxiliary sleeve is fixedly arranged on the rear side of the main sleeve through the installation clamping groove, a first cavity and a second cavity are arranged inside the main sleeve, and the first cavity and the second cavity are communicated with each other. A bolt groove is formed in the second cavity, the cross section of the main sleeve is of a T-shaped structure, and a sealing strip is fixedly installed on one side of the back face of the main sleeve. According to the characteristic that the door is flat outside and open inside, the first cavity and the second cavity are arranged to increase the cross section area of the sectional material, a good supporting system is formed, and the deformation risk caused by long-term opening and closing can be resisted; the wall thickness of the main sleeve and the wall thickness of the auxiliary sleeve range from 1 mm to 3 mm. The millimeter-level thickness breaks through the visual decorous feeling of a traditional door frame, the ultra-narrow frame is achieved through the precision machining technology, the space permeability can be improved to the maximum degree, and the ultra-narrow frame is particularly suitable for modern simple and light luxury style decoration.

The invention discloses a preparation method of a wide-temperature-range high-damping metal hollow sphere / polyurethane damping composite material, and relates to a preparation method of a damping composite material. The method comprises the following steps: 1, carrying out surface modification on metal hollow spheres; and 2, preparing the polymer. Compared with pure polyurethane, the prepared wide-temperature-range high-damping metal hollow sphere / polyurethane damping composite material has the advantages that the damping performance is greatly improved, the temperature range is widened, the excellent damping performance and acoustic performance are achieved, the preparation process is simple, the stability is high, and the composite material is suitable for large-area pouring and complex-shape base materials; wide application prospects are realized in the fields of ships, aerospace, vehicles, building materials and the like; after the surface-modified metal hollow spheres are compounded with polyurethane, the damping performance can be greatly improved, the temperature range is widened, the loss factor is increased from 0.45 to 0.85, and the effective temperature range is widened from 59.9 DEG C to 100 DEG C or above.

The utility model relates to the technical field of building curtain walls, and discloses a sound insulation and noise reduction type building curtain wall which comprises an installation frame, the top of the installation frame is connected with first inner layer glass in a gluing mode, the top of the first inner layer glass is connected with a glue clamping layer in a gluing mode, and the top of the glue clamping layer is connected with second inner layer glass in a gluing mode. A hollow layer is mounted at the top of the second inner-layer glass, and outer-layer glass is mounted at the top of the hollow layer. According to the sound insulation and noise reduction type building curtain wall, by adopting a laminated and hollow composite structure, the first inner layer glass and the second inner layer glass are bonded through a 1.52 mm P-type laminated layer to form an anti-impact sound and heat barrier; the 6mm outer layer glass and the argon filling hollow layer are combined to destroy sound wave resonance, and a 50-100mm rock wool cavity between the mounting frame and the wall body is matched to cut off a sound bridge; according to the curtain wall unit, multi-stage noise reduction and water prevention are achieved through a closed-cell foaming sealing structure and a shock insulation pad, and three-effect improvement of sound insulation, heat insulation and impact resistance is achieved on the whole.

The utility model relates to a concave-convex splicing assembly type wall body, the wall body comprises daughter boards (1) and corner splicing pieces (2), the two opposite sides of each daughter board (1) are respectively provided with a splicing clamping opening (1-1) and a splicing clamping groove (1-2) which are used for splicing, and the adjacent daughter boards (1) can be spliced in a plane mode through the splicing clamping openings (1-1) and the splicing clamping grooves (1-2); the corner splicing pieces (2) comprise right-angle bending splicing pieces (2-1), acute-angle bending splicing pieces (2-2) and obtuse-angle bending splicing pieces (2-3) which are used for right-angle corner splicing, acute-angle corner splicing and obtuse-angle corner splicing of the adjacent daughter boards (1); the daughter board (1) is provided with preformed holes (1-3) used for being matched with self-tapping screws to achieve fixation. Compared with the prior art, the sound insulation wall has the advantages that the problem of sound leakage generally existing at the splicing position of a traditional assembly type wall can be effectively solved, the sound insulation amount of the splicing position is equivalent to that of the wall, adjustment can be carried out according to the design requirements of close splicing or masking seams, and the sound insulation wall has the attractive effect and flexible design.