48results about How to "Avoid cold bridge" patented technology

The invention relates to a precast concrete wallboard and a preparation method thereof. A wall body has a structural layer and a protection layer from inside to outside, wherein the structural layer is internally provided with a reinforcement cage, and a reinforcement fabric is arranged in the concrete of the protection layer; the protection layer is connected with the structural layer through a transverse connecting reinforcement connected to the reinforcement fabric; the left edge and the right edge of the protection layer protrude out of the structural layer; the lower edge of the protection layer downwards extends out of a protruded port; and the top of the protection layer upwards protrudes out of the structural layer; the upper edge of the protection layer has a dent corresponding to the protruded port of the adjacent precast concrete wallboard on the upper layer; and the two ends of a transverse bar of the reinforcement cage protrudes out of the left side surface and the right side surface of the structural layer of the wall body and form two rows of transverse steel ties bending inwards. The wallboard has the advantages that the construction process is simplified, the construction speed is accelerated, and the construction cost is reduced. Meanwhile, products precast by a factory have uniform specification and quality, and thus, the construction quality of a building structure can be guaranteed sufficiently. The precast concrete wallboard can be widely applied to construction of concrete steel buildings in building industry.

The invention discloses a precast composite wallboard with door/window holes and a manufacturing method thereof. The body of the precast composite wallboard is provided with door/window holes thereon and is also sequentially provided, from inside to outside, with a structural layer, a heat preservation layer and a protective layer, wherein the structural layer is internally provided with a reinforcing cage, concrete of the protective layer is internally provided with a reinforcing mesh, the structural layer, the heat preservation layer and the protective layer are anchored with each other in a penetrative manner via connectors which are distributed in a spotted manner, the left and right edges of the protective layer and the heat preservation layer protrude to the structural layer, the lower edge of the protective layer extends downwards out of a convex opening, the top parts of the protective layer and the heat preservation layer protrudes upwards to the structural layer, and the upper edge of the protective layer is provided with a concave opening corresponding to the convex opening of the adjacent precast composite wallboard at the upper layer. The wallboard has the advantages of simplifying construction procedures, speeding up construction speed and reducing project cost. In addition, the products precast in factory are consistent in specification and quality, the construction quality of building structure can be fully guaranteed, and the wallboard can be extensively applied to the construction of reinforced concrete buildings in the construction industry.

The invention discloses an assembled heat-preservation aerated concrete composite wall plate which comprises an aerated concrete plate, a cement fiber plate, pre-buried parts and an outer decoration layer. The B03-grade aerated concrete plate is a heat-preservation material, but the strength of the plate is only 1/10 of that of common concrete. To reduce the thickness as much as possible on premise that strength requirements of outer wall plates are met, and meet the purpose of integration of properties and decoration, the cement fiber plate with high strength is compounded with the outer side of aerated concrete, and the outer side of an FRP (Fiber Reinforce Plastic) plate is coated by the outer decoration layer. The aerated concrete plate and the cement fiber plate are connected with steel sleeve pre-buried parts inside the aerated concrete through bolts, when the wall plate is bent, the outer wall plate, namely the cement fiber plate is tensioned, the tension is conducted to a cement fiber plate at another end through the bolts, then the involvement degree of the aerated concrete plate in stress is reduced, and the aerated concrete plate barely bears the tension, but only takes a part of pressure, so that the aerated concrete is prevented from sliding or damage caused by low tension resistance. Regular reinforcement is replaced by FRP ribs in the middles of the pre-buried parts, and cold bridges can be avoided.

The invention belongs to the technical field of novel heat preservation walls. The invention provides a thermal insulation module connecting piece and a thermal insulation integrated structure. The connecting piece comprises a connecting sleeve, a positioning plate is arranged at one end of the connecting sleeve; a notch for fixing a steel wire mesh is formed in the positioning plate; connecting discs sleeve the outer side of the connecting sleeve; a through hole for accepting the connecting sleeve to penetrate through is formed in the middle of each connecting disc; the number of the connecting discs is two, reinforcing holes are formed in the connecting sleeve in the circumferential direction; reinforcing ribs penetrate through the reinforcing holes. The connecting piece also includes amain body reinforcing steel bar, a bearing layer is poured on the main reinforcing steel bar; a thermal insulation layer is arranged on one side of the bearing layer; a protective layer is arranged onone side of the insulating layer away from the bearing layer; and a steel wire mesh is arranged in the protection layer, a steel wire mesh is arranged in the notch, a thermal insulation layer is clamped between the two connecting discs, and the sides, away from the steel wire mesh, of the reinforcing ribs are fixedly connected with the main body steel bar, so that the technical problem that in the prior art, a protection layer in a thermal insulation structure employing a split connecting bridge structure is prone to falling off is solved.

The application provides a sloping roof structure. The sloping roof structure comprises a main sloping surface body having a first heat-preservation layer. The first heat-preservation layer is made by a graphite-polystyrene heat-preservation board. The sloping roof structure further comprises a gutter node. The gutter node is arranged outside of a lower edge of the main sloping surface body. A non-convex-concave flat plane is arranged in the vicinity of the joint for the main sloping surface body and the gutter node.The sloping roof structure has following beneficial effects: due to the fact that the non-convex-concave flat plane is arranged in the vicinity of the joint for the main sloping surface body and the gutter node, water and vapor of a sloping roof can naturally flow to the gutter node in order to avoid cold-bridge and frost-heaving potential hazards.

The invention relates to a thermal insulation technology for a wallboard frame during constructional engineering. The wallboard frame comprises a convex wallboard border, a concave wallboard border and a tongue and groove joint thermal insulation layer; during mounting, a joint tongue of the convex wallboard border is meshed and connected with a notch of the concave wallboard border, an extruded sheet, a polyurethane plate and polyethylene or polystyrene thermal insulation materials are added to a tongue and groove joint to serve as the thermal insulation layer, and the tongue and groove joint thermal insulation layer and a wallboard inner thermal insulation layer are combined to form a wallboard border thermal insulation system. The thermal insulation technology is used for thermal insulation of fabricated house wallboard frames, the design is simple, the thermal insulation system is complete, thermal insulation layers are arranged in any section position of the wallboard border, and cold bridge is avoided.

The invention relates to a compound member of punching light concrete and common concrete, the manufacturing method and the building with it. The compound structure of 3D box frame light wall comprises bearing part of 3D box frame located at the edge and protecting and shielding part located in the core of frame. The bearing part comprises common reinforced steel concrete and the protecting and shielding part comprises prefabrated core plate of punching light concrete with steel bar net. Said prefabrated core plate of punching light concrete and common steel bar concrete with the bearing part of 3D box frame are cast together. The plate member is light wall compound structure of 2D door frame. Said box member is pentahedron, tetrahedron, or trihedron and one heat insulation layer is compounded on the outer wall. It can satisfy the demand of industrial production and building energy-saving. It is provided with good effect for heat insulation, low construction cost, short working period and little construction work in the open air.

The invention belongs to the technical field of heat insulation materials and relates to a process method for manufacturing a sandwich board online through a composite extruded board and achieving automatic and continuous manufacturing of various sandwich boards. The method includes placing polystyrene granules, talcum powder, hexa-bromo-dodecane, foaming agent and colorant into a feeding machine, introducing compressed air into the feeding machine simultaneously, delivering raw materials coming out from the feeding machine into an extruding machine, machining the raw materials in the extruding machine to form the extruded board, cooling the extruded board, conducting roughening, edge milling and notching on the extruded board, delivering the machined extruded board into a color plate compounding machine to manufacture the sandwich board and cutting the sandwich board to obtain a sandwich board finished product. By means of the method, cold bridge and cold loss are effectively avoided, and stable effects of a product can be ensured. The method is simple in manufacturing process, reliable in principle, low in cost, good in product quality, obvious in economical and social benefit and environmentally friendly. The raw materials are easy to obtain.

The invention relates to a construction process, especially relates to a process for constructing joints between the bottom of a window on an outer wall and the inside as well as outside of a windowsill. The process provided by the invention comprises the following steps: on a windowsill at the outside of the bottom of the window, performing direct outward insulating base layer (consisting of cement mortar screeding layers) to falls, wherein the peak of a slope is arranged at the position 1/3 away from the inner edge of a window frame; filling the bottom of the external window frame with polyurethane foams; after the external window frame of a building is installed, inserting an XPS insulation board at the outside of the bottom of the window into the bottom of the window; and then foaming from the indoor. Because the peak of the slope is arranged at the position 1/3 away from the inner edge of the window frame, the infiltrating positions of sealants are gaps between the outer edges of the window frame and outside surface mortar, and the outer sides; a joint seam between an insulation board at the horizontal plane of the external windowsill and an insulation board at the vertical plane of the external windowsill is a horizontal joint seam; and the height of the inside (completely closed up) of the windowsill is 10 mm higher than the taken outside of the windowsill. The process provided by the invention can control the water leakage phenomenon of the windowsill of the external window of a building better under the premise of guaranteeing no thermal bridge occurs.

The invention discloses a metal roof anti-cold-bridge fixing seat and a precise positioning roof system. The fixing seat comprises a base and a spring piece, supporting plates which are vertically arranged are arranged on the two sides of the base correspondingly, a supporting rod parallel to the base is arranged between the two supporting plates, the two ends of the supporting rod are fixedly connected with the inner side faces of the two supporting plates correspondingly; and the lower portion of the spring piece is arranged on the supporting rod and slides in the axial direction; limiting clamping pieces are arranged on the supporting rods on the two sides of the spring piece, and the two limiting clamping pieces enable the spring piece to be located in the middles of the supporting rods; the base is further provided with a heat insulation cushion block fixedly connected with the base; and through-length positioning plates are fixed to roof purlins located at the ridge and the cornice correspondingly, the distance between every two adjacent positioning holes in the positioning plates is consistent with the mounting distance of roof panels, and the base of the fixing seat is fixedly connected with the positioning holes. The problems of cold bridge or hot bridge and installation deviation prevention of the metal roof board are solved, the procedures of paying off, measuring and the like are omitted, and the construction progress is accelerated.

The invention belongs to the technical field of a VRV (Variable Refrigerant Volume) air-conditioning system, and particularly relates to an environmentally-friendly noise reduction structure of a VRV (Variable Refrigerant Volume) air-conditioning system and a construction method thereof. The environmentally-friendly noise reduction structure comprises an indoor unit, an outdoor unit, an air hose for connection, a refrigerant pipe and a condensed water pipe, wherein the indoor unit, the air hose, the refrigerant pipe and the condensed water pipe are respectively arranged on an indoor unit suspension rod, an air hose suspension rod, a refrigerant pipe suspension rod and a condensed water pipe suspension rod; a gasket is arranged between the indoor unit suspension rod and the indoor unit; and noise reduction sole timbers are respectively arranged between the refrigerant pipe and the refrigerant pipe suspension rod and between the air hose and the air hose suspension rod. The environmentally-friendly noise reduction structure has the beneficial effects that the frequency of collision caused by vibration is reduced by arranging the gasket or a rubber mat between an indoor unit suspension rod nut and the contact surface of an indoor unit connecting plate and the sole timbers among the refrigerant pipe, the air hose and a pipeline hanging bracket; construction materials are economic and practical; the construction cost is relatively low; the noise index can be reduced; good office environments are created; and the office efficiency of office staff is improved.

The invention provides an opening hemming 3D vacuum heat insulation plate. The vacuum heat insulation plate is provided with a containing cavity and an opening communicating with the containing cavity; the vacuum insulation plate specifically comprises an inner barrier layer, a middle core material and an outer barrier layer; the inner barrier layer extends outwards in the radial direction of theopening at the opening position and then is folded downwards in the axial direction of the opening to form hemming; the side, close to the opening, of the outer barrier layer extends upwards in the axial direction of the opening, extends towards the inner barrier layer in the opening direction and then extends upwards in the axial direction of the opening to form an extending face, and at least one part of the outer side face of the extending face is wrapped by the hemming; and a sealing material is arranged between the hemming and the extending face. The vacuum insulation plate has no marginal effect and cold bridge, greatly enhances the heat preservation performance, and prolongs the heat preservation time, so that the cost performance of VIP application is improved, and the vacuum insulation plate is more energy-saving and environment-friendly.

The invention provides a layered composite 3D vacuum insulated panel, which is provided with an accommodating cavity and an opening, and specifically comprises an inner barrier layer, a layered composite core material and an outer barrier layer, the inner barrier layer extends outwards along the opening at the opening position; and the outer barrier layer extends inwards in the opening direction and is compounded with the inner barrier layer on the extending surface. The layered composite core material is formed by stacking multiple layers of composite core materials, and the composite core material is formed by compounding a carrier layer, a powder layer and an anti-radiation layer. Compared with a common core material, the layered composite 3DVIP has the advantages that the 3DVIP thermalinsulation performance can be further enhanced, the thermal insulation time is prolonged, and the layered composite 3DVIP is more energy-saving and environment-friendly. The invention further provides a heat preservation container, and the layered composite 3DVIP is used in the heat preservation container.

The invention relates to an air-conditioner box with an aluminum-plastic composite type plane fastening structure. A No.1 frame aluminum profile and a No.2 frame aluminum profile are fastened into an integrated profile and form a left air-conditioner box plate together with an outer panel, an inner panel, foaming polyurethane and foamed rubber; a No.3 frame aluminum profile and a No.4 frame aluminum profile are fastened into an integrated profile and form a right air-conditioner box plate together with the other outer panel, the other inner panel, the other foaming polyurethane and the other foamed rubber; and the two air-conditioner box plates are fixedly connected to form plane fit through bolts and nuts. The aluminum-plastic composite type air-conditioner box with the plane fastening structure disclosed by the invention overcomes the defects of insufficient rigidity of an air-conditioner box body, low bearing static pressure, high deformation rate, poor heat insulation and preservation effects, cold bridge and the like. According to the aluminum-plastic composite type air-conditioner box with the plane fastening structure disclosed by the invention, the air leakage rate is reduced; the cold bridge can be avoided by an aluminum-plastic composite profile; deformed steel is inserted to the profile so as to greatly enhance the rigidity of the profile and be capable of resisting positive and negative pressures; after oppositely spliced, the profiles can be inserted to an aluminum alloy cover plate without exposing screws so as to be beneficial to the application of high-end purification and enhance the strength of the air-conditioner box; and moreover, the rigidity of the air-conditioner box is further strengthened by an internal reinforced rib and an external reinforced rib.