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210 results about "Rabbet" patented technology

A rabbet or rebate is a recess or groove cut into the edge of a piece of machinable material, usually wood. When viewed in cross-section, a rabbet is two-sided and open to the edge or end of the surface into which it is cut.

Prefabricated platform plate construction method and prefabricated platform plate cup opening thereof

The invention discloses a prefabricated platform plate construction method and a prefabricated platform plate cup rabbet thereof, and belongs to the technical field of engineering construction.The construction method comprises the steps that S1, a station structure bottom plate is constructed, and a platform plate placing area with reserved cup rabbet vertical ribs is divided during construction; s2, a supporting component capable of reaching the preset elevation is placed at the position, corresponding to the cup opening web plate, in the cup opening vertical rib, and a prefabricated platform plate is placed; and S3, cup opening transverse bars are bound, and a formwork is erected to pour a cup opening. The prefabricated platform plate cup rabbet comprises a cup rabbet with a U-shaped section, the cup rabbet comprises a cup rabbet flange and a cup rabbet web, cup rabbet vertical ribs are arranged in the cup rabbet flange, and cup rabbet transverse ribs and supporting components are arranged in the cup rabbet web. The preset elevation is adjusted firstly through the supporting component, pouring of the cup rabbet can be conducted after the prefabricated platform plate is placed, the cup rabbet strength waiting time does not exist before the prefabricated platform plate is placed, the problems that the cup rabbet cannot meet the preset elevation and needs follow-up treatment and the cup rabbet is cracked up in the placing process do not exist, and therefore the installation efficiency and the installation precision are improved.
Owner:ROAD & BRIDGE INT CO LTD +1

Overflow ink wiping device

An overflow ink wiping device comprises a wiping head (3) which is provided with a rabbet body wiping face (11) and an arc wiping face (12) used for wiping a product (1); the wiping cloth feeding mechanism (4) is used for collecting and releasing wiping cloth (41) wrapping the wiping surface; the rotary clamping structure (6) is used for horizontally placing and clamping the product (1) and driving the product (1) to rotate around the Z-axis direction, so that the specific section, needing to be wiped, of the rabbet body or the arc of the product (1) is replaced; the wiping head linear driving mechanism (5) is installed on the wiping head (3) and used for driving the wiping head (3) to move along the Y axis to press the rabbet body or the arc of the product (1); the product linear driving mechanism (7) is connected with the rotary clamping structure (6) to drive the product (1) to move in the X-axis direction, so that the wiping cloth (41) wipes the rabbet body or the arc of the product (1); therefore, the automatic wiping device can automatically wipe on a large scale, and the wiping efficiency is greatly improved.
Owner:BIEL OPTIC HUIZHOU +2

Angle-adjustable interlocking retaining wall brick

The utility model provides an angle-adjustable interlocking retaining wall brick which comprises a main body, a splicing locking male tongue-and-groove and a splicing locking female tongue-and-groove are fixedly arranged at the two ends of the main body respectively, and an upper locking tongue-and-groove and a lower locking tongue-and-groove are fixedly arranged on the top surface and the bottom surface of the main body respectively. Chamfering parts are arranged on the two sides of the splicing locking female rabbet at the same time, the chamfering parts are located on the two sides of the two ends of the main body at the same time, and a vertical through hole is formed in the surface of the main body in a penetrating mode. By means of the upper locking rabbets and the lower locking rabbets which are arranged in a matched mode, the effect that every two layers of wall bricks are mutually overlapped and meshed is achieved when brick bodies are overlapped and built, a camber angle with a certain angle is formed, and in the building process, when a plurality of brick bodies are overlapped and built, the wall bricks are not prone to falling off. Stacked brick bodies are meshed up and down through the upper locking rabbets and the lower locking rabbets, so that stability and positioning during stacking and building are guaranteed, and mortar cementation is not needed during mounting and building.
Owner:ZHUHAI RONGLI NEW BUILDING MATERIALS CO LTD

Steel-concrete composite structure system under heavy load condition of underground engineering

The utility model discloses a steel-concrete combined composite structure system under the heavy load condition of underground engineering, which comprises a steel box type bearing member, a duct piece outer protection layer is arranged outside the steel box type bearing member, the duct piece outer protection layer and the steel box type bearing member are connected into a whole, a plurality of cavities are formed in the steel box type bearing member, and the cavities are communicated with the duct piece outer protection layer. The cavity is filled with internal filling concrete, and the internal filling concrete and a concrete protection layer in the duct piece outer protection layer jointly act inside and outside, so that the stability and the bearing capacity of the whole structure are enhanced. The high-performance concrete is filled in the steel box type bearing component, so that the bearing capacity of the duct piece can be greatly improved; an anti-cracking reinforcing mesh and a concrete protection layer are arranged outside the pipe piece, so that the durability of the pipe piece is greatly improved; the circular seams and the longitudinal seams of the duct pieces are connected through concrete, the duct pieces can adapt to connection modes of rabbets, grooves and the like of various molds, production through the molds is facilitated, the duct pieces are connected through special lap joint steel plates, and the integrality of the duct pieces is improved.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Prefabricated hog house wallboard and hog house wall constructed by same

The utility model discloses a prefabricated hog house wallboard and a hog house wall body constructed by the same, the prefabricated hog house wallboard comprises a concrete prefabricated wallboard, the concrete prefabricated wallboard is a flat plate or a corner plate, right-angle rabbets which are communicated from top to bottom are arranged on two vertical sides of the concrete prefabricated wallboard, and the right-angle rabbets are arranged in the vertical direction of the concrete prefabricated wallboard. A plurality of embedded connecting pieces are arranged on the outer side of the Y-direction side edge of the right-angle tongue-and-groove at intervals from top to bottom, each embedded connecting piece comprises an embedded plate and a connecting plate, the connecting position of each embedded plate and the corresponding connecting plate is a right angle bent outwards, the embedded plates are embedded in the outer side portion of the concrete prefabricated wall plate, and bolt mounting holes are formed in the connecting plates in advance. The prefabricated hog house wallboard provided by the utility model not only can realize batch production, but also is convenient to install on site; when the prefabricated hog house wallboard is used for constructing a hog house wall body, the field workload, the working intensity and the number of constructors can be obviously reduced, the construction efficiency can be obviously improved, the construction period can be shortened, and the safety of the hog house wall body can be improved.
Owner:SHANGHAI ZHENGCHENG MECHANICAL-ELECTRICAL MFG CO LT

Multi-level force transmission construction method for large-span beam formwork supporting system

The invention provides a multi-level force transmission construction method for a large-span beam formwork supporting system, and belongs to the technical field of building construction.The multi-level force transmission construction method comprises the steps that a supporting system space coordinate system is established by obtaining three-dimensional model data of a large-span beam structure; a multi-layer force transmission analysis model is established to divide a supporting system into four force transmission layers including a bottom die layer, a secondary keel layer, a main keel layer and a vertical rod layer, a force transmission path calculation equation set is used for analyzing the load transmission relation between the layers, and a disc buckle type steel pipe supporting frame body is erected to form a multi-layer force transmission network foundation structure. A bottom formwork secondary keel system and a main keel back ridge system are installed to establish a complete bearing system, the bearing capacity and deformation coordination of all force transmission paths are calculated through a force transmission efficiency evaluation equation set, and parameter adjustment and optimization are conducted; the technical problems that the force transmission path of a large-span beam formwork supporting system is not clear, and the load transmission efficiency between layers is low are solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD +1

Mounting system, method, and device

The present invention relates to a system, method, and device for mounting pictures, art, and other framed images on a wall or other mounting surface by creating a receptacle in the rabbet area of the frame for the framed image wherein the receptacle fits onto a mounting plate that is attached to the mounting surface.
Owner:PUNCH COLLAGE LLC

Wall structure

The invention discloses a wall body structure, and relates to the field of wall body structure construction, the wall body structure comprises a wall body, the top end of the wall body is connected with a connecting steel bar used for being connected with a fabricated top beam and used for limiting and stabilizing the wall body, the middle of the wall body is hollow, and the hollow cavity is filled with sound insulation and heat insulation foam; the upper portion and the lower portion of one side of each wall body are each provided with a tongue-and-groove groove, a connecting mechanism is arranged in each tongue-and-groove groove, the upper portion and the lower portion of the other side of each wall body are each connected with a limiting mechanism, and the connecting mechanisms and the limiting mechanisms are used for connecting every two adjacent wall bodies in a limiting mode. The wall body structure is light in weight and high in strength, rapid hoisting and splicing can be conveniently achieved, the construction time can be saved, and the construction progress can be accelerated; the wall structure has the purposes of heat preservation and heat insulation, and meets the requirement of green construction; the constructed wall body structure further has better anti-seismic performance and higher adaptability.
Owner:CHENGDU JIANGONG ROAD & BRIDGE CONSTR

Fully-prefabricated underground household shelter

The utility model discloses a fully prefabricated underground family shelter, which comprises a prefabricated foundation, a prefabricated outer wall, a prefabricated door frame wall and a prefabricated composite floor slab, the internal space of the shelter is divided into an opening part and a protection area by the prefabricated door frame wall, and longitudinal bars of the prefabricated outer wall and the prefabricated door frame wall are connected with embedded bars in the prefabricated foundation through semi-grouting sleeves. A gap between the prefabricated outer wall and the prefabricated foundation and a gap between the prefabricated door frame wall and the prefabricated foundation are both densely poured through high-strength grouting materials, the prefabricated outer wall and the prefabricated foundation are connected through rabbets, and the prefabricated outer wall and the prefabricated composite floor slab as well as the prefabricated door frame wall and the prefabricated composite floor slab form a whole through post-pouring composite layers. And water stopping measures are arranged at the top ends of the prefabricated outer wall and the prefabricated door frame wall. The utility model has the advantages of standardization, mass production and short on-site construction period, and can effectively reduce on-site wet construction.
Owner:CHINA INST OF BUILDING STANDARD DESIGN & RES

Tongue-and-groove sealing structure of cement pipe

ActiveCN223794838UFlanged jointsRabbetPipe
The utility model provides a cement pipe tongue-and-groove sealing structure, which belongs to the technical field of cement pipes, and mainly comprises a connecting piece, a sealing ring, an auxiliary structural member, a flange plate and a bolt, the connecting piece is sleeved at the tongue-and-groove of the cement pipe, and the sealing ring is arranged between the connecting piece and the auxiliary structural member and is made of an elastic material; the groove of the auxiliary structural member is matched with the sealing ring to prevent the sealing ring from shifting; the flange plate is connected with the connecting piece through a bolt, and the positioning protrusion is used for abutting against the sealing ring and the auxiliary structural piece. During working, all the components are tightly attached through bolt connection, the sealing ring deforms under the action of pressure, gaps at the joint of rabbets and tongues of cement pipes are evenly filled, and the sealing function is achieved. The device is simple in structure, convenient to install and reliable in sealing performance, liquid or gas leakage can be effectively prevented, the stability of cement pipe connection is improved, and the service life is prolonged.
Owner:烟台市政建设集团有限公司

Template-free constructional column

The utility model provides a formwork-free constructional column which comprises a plurality of prefabricated hollow bricks arranged in a laminated mode from top to bottom, the prefabricated hollow bricks which are adjacent in the vertical direction are spliced through rabbets to form a cavity which is through in the vertical direction, and the cavity is used for pouring constructional column concrete. The prefabricated hollow bricks comprise top-layer hollow bricks, middle-layer hollow bricks and bottom-layer hollow bricks, and the top-layer hollow bricks are provided with pouring openings used for pouring concrete. A cleaning opening is formed in the bottom hollow brick and used for cleaning the cavity; the middle hollow bricks are provided with connecting holes used for allowing tie bars to penetrate through so as to be connected with the masonry wall. The prefabricated hollow bricks are simple in structure and convenient to operate, the constructional column is formed by stacking the prefabricated hollow bricks in a wall building mode, constructional column formworks do not need to be additionally arranged, the construction technology is simplified, and the construction efficiency is improved; the prefabricated hollow brick is simple in manufacturing process and high in production efficiency, and the manufacturing cost is remarkably reduced; the overall structure is stable in connection and accurate in positioning, and the appearance quality of the constructional column is ensured.
Owner:MCC TIANGONG GROUP

Underground engineering micro-disturbance implanted prefabricated structure assembly

An underground engineering micro-disturbance implantation prefabricated structure assembly relates to the technical field of underground buildings, and comprises a plurality of double-H structural members, and each double-H structural member comprises two outer structural plates and two inner structural plates; the two outer structural plates are arranged in a front-back spaced mode, the two inner structural plates are arranged between the two outer structural plates and arranged in a left-right spaced mode, the left inner structural plate and the left portions of the two outer structural plates form an H-shaped structure, and the right inner structural plate and the right portions of the two outer structural plates form an H-shaped structure. A vertically through pouring hole is defined by the two outer structural plates and the two inner structural plates; the two outer structural plates are each provided with a left bolt hole and a right bolt hole which are through up and down. Vertical rabbet-shaped connectors are arranged on the upper side and the lower side of the double-H structural part, and horizontal rabbet-shaped connectors are arranged on the left side and the right side of the double-H structural part. The assembly provided by the invention is used for assembling the underground structure wall.
Owner:SHANGHAI GUANGLIAN ENVIRONMENTAL & GEOTECHNICAL ENG CO LTD

Surface mounted door frame

A door frame system comprises a wall and a door frame. The door frame comprises a sub-buck portion and a shell portion, coupled to the sub-buck portion. The sub-buck portion comprises a sub-buck mounting arm including at least one mounting aperture, a sub-buck rabbet arm coupled to one end of the sub-buck mounting arm and a sub-buck support arm coupled to the sub-buck mounting arm opposite the sub-buck rabbet arm. The sub-buck portion is surface mounted to a single surface of the wall through the at least one mounting aperture.
Owner:TP IP HOLDCO LLC

Hanging ceiling joist device

ActiveCN223991499UCeilingsKeelJoist
The utility model relates to the technical field of indoor decoration, and provides an access ceiling joist device which comprises an access ceiling plate and ceiling assemblies distributed on the two sides of the access ceiling plate. The suspended ceiling assembly comprises a lead screw and a keel assembly. The keel assembly comprises a first connecting piece and a first keel; the first connecting piece is connected with the first keel in a buckled mode, and a supporting rib is arranged at the side end of the first keel. A rabbet is formed in the side end of the access ceiling plate, and the supporting ribs are embedded into the rabbet. The screw rod is in threaded connection with the keel assembly, so that the height of the keel assembly is adjustable, and different mounting requirements can be met; and the supporting ribs are embedded into the rabbets of the access ceiling plate to support the access ceiling plate, so that the access ceiling plate is quickly and conveniently mounted.
Owner:NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU CO LTD

Building structure construction cup rabbet concrete foundation

The utility model relates to the technical field of concrete foundations, in particular to a cup rabbet concrete foundation for building structure construction. According to the building structure construction cup rabbet concrete foundation provided by the embodiment of the invention, the outer sleeve is arranged in the cup foundation body, the inner sleeve is arranged in the outer sleeve, and the column body is arranged in the inner sleeve. Moreover, the cup base body, the outer sleeve and the inner sleeve are arranged to be of a detachable structure, so that subsequent pouring can be directly completed between the main body and the inner sleeve. By the adoption of the structural design, the inner sleeve can be detached from the cup base body and the outer sleeve after use is completed, and therefore secondary recycling of the cup base body is achieved.
Owner:YANSHAN COUNTY SECOND CONSTRUCTION ENGINEERING CO LTD

Method for machining conical wooden workpieces, device for carrying out such a method, and planing machine with such a device

This process is used for machining conical wooden workpieces with longitudinal sides that are angled to each other and curved along their length. A first planing tool is used to plane one longitudinal side along the curve of that side, while a second planing tool is used to plane the opposite longitudinal side (in the direction of travel) along this same curve, overlapping the two planes to achieve the desired taper. This is accomplished by adjusting the position of the second planing tool relative to the first, perpendicular to the workpiece's direction of travel, as the workpiece passes through the machine. The longitudinal sides of the workpiece are planed in such a way that they retain their curve after the planing process. Because the machining process follows the curvature of the workpiece, minimal wood waste is generated, resulting in optimal wood yield.
Owner:MICHAEL WEINIG AG

Fixture for 3D glass chamfering and rabbet body measurement

The utility model relates to the technical field of 3D glass measurement, and discloses a clamp for 3D glass chamfering and rabbet body measurement, which is simple in structure and operation, high in measurement efficiency and low in use cost, is not limited by a measurement machine table, can be simultaneously suitable for batch production and proofing links, and comprises a bracket base and a product positioning block, two support inserts are oppositely arranged on the support base, limiting notches are formed in the top faces of the support inserts, and at least one penetrating hole is formed in the side face of each support insert. A positioning groove is formed in the top surface of the product positioning block, two limiting connecting parts are arranged on the two opposite outer sides of the product positioning block, rotating shafts penetrating through the limiting notches are fixed to the limiting connecting parts, and a plurality of inserting holes are formed in the limiting connecting parts; two product fixing blocks which are detachably connected with the product positioning blocks are oppositely arranged at the edge of the notch of the positioning groove, and the product fixing blocks are provided with crimping parts which press the edge of the to-be-tested product together with the edge of the positioning groove; and the product positioning block is fixedly connected with the bracket insert through a bolt penetrating through the penetrating hole and any one of the insertion holes.
Owner:BIEL OPTIC HUIZHOU +2

Air passage sealing sliding door and window

The invention belongs to the technical field of sliding windows, and particularly relates to an air passage sealing sliding door and window which comprises a window sash frame and a window sash, and sealing grooves are formed in the bottom and the top of the window sash and the side edge, close to an edge rabbet, of the window sash; a partition plate is arranged in the sealing groove and divides the sealing groove into a first sealing groove body and a second sealing groove body. First sealing strip grooves are formed in the inner walls of the two sides of the second sealing groove; and first sealing plates are arranged on the upper sliding rail frame, the lower sliding rail frame and the side rabbets. The sealing groove is formed in the window sash frame, the sealing groove is divided into the first sealing groove and the second sealing groove, the first sealing groove is used for installing the rolling wheel corresponding to the sliding rail, and installation of the rolling wheel is facilitated; the second sealing groove is matched with the first sealing plate on the window sash frame, the sealing gap can be made to be extremely reasonable, the direction of airflow can be effectively changed for multiple times, the flow direction and the flow speed of the airflow entering the second sealing groove and the indoor space are greatly reduced, and then the sealing effect can be further improved.
Owner:GUANGXI XIAFA WINDOW BUILDING MATERIALS CO LTD

Photovoltaic thermal insulation integrated wallboard and preparation method thereof

The invention discloses a photovoltaic thermal insulation integrated wallboard and a preparation method thereof.The integrated wallboard comprises a wall body made of concrete or lightweight concrete, frames with concave rabbets are adopted on the two sides of the wall body to serve as formworks to be matched with keels, the keels are matched with the boundary of the wall body in a semi-surrounding mode, and the keels are connected with the wall body. Semicircular tongue-and-groove structures are arranged on the keel at intervals, threaded columns are welded to the end face of the keel, the integrated wall further comprises a photovoltaic panel arranged on the outermost layer of the wall, the photovoltaic panel serves as a facing layer on the outer side of the wall, the photovoltaic panel comprises a surface glass layer and a photovoltaic module, the photovoltaic module is located at the rear end of the photovoltaic panel, and the photovoltaic module is arranged on the surface glass layer. The photovoltaic panels are detachably connected to the wall bodies, and the multiple integrated wall bodies are spliced to form the photovoltaic heat preservation integrated wallboard structure.
Owner:STATE GRID SHANXI ELECTRIC POWER CO ECONOMIC & TECH RES INST

Door leaf structure of sliding door

The utility model belongs to the technical field of sliding door structures, and discloses a door leaf structure of a sliding door, which comprises an upper rail, a lower rail, a smooth rabbet and a hooked rabbet, and is characterized in that the smooth rabbet and the hooked rabbet are respectively provided with a first glass mounting groove and at least one first anti-collision strip mounting groove, and the first glass mounting grooves and the first anti-collision strip mounting grooves are oppositely arranged; two side groove walls of the first glass mounting groove are symmetrically and respectively provided with at least two first clamping strips which extend towards the inner side in parallel, and at least two first glue solution accommodating grooves are formed between the adjacent first clamping strips and between the first clamping strips and the groove walls; and an anti-collision strip is mounted in the first anti-collision strip mounting groove. According to the utility model, redundant glass cement can be accommodated in the groove, so that the glue solution can be effectively prevented from overflowing, the adhesive strength between the glass and the section bar is increased, the door opening space can be enlarged, and the aesthetic feeling and the passing convenience are improved.
Owner:SHANDONG QUCHUANG METAL PROD CO LTD

Plate conveying equipment for tongue-and-groove UHPC decorative plate production

The utility model provides plate conveying equipment for producing rabbet UHPC (Ultra High Performance Concrete) decorative plates, which relates to the technical field of plate conveying and comprises a mounting rack, a motor is fixedly mounted on the surface of the mounting rack, a conveying roller is mounted at the output end of the motor, and a vertical plate is fixedly mounted on the top surface of the mounting rack. Through the design of the threaded rod and the supporting block, a worker can adjust the height of the supporting block, it is ensured that the supporting block can lift the sliding plate and the protruding block to the height the same as that of the UHPC decorative plate, in this way, when the thickness of the plate exceeds the standard, the UHPC decorative plate can extrude the ejecting block upwards, the ejecting block drives the sliding plate to move, and the displacement of the sliding plate can be fed back to the worker in time; according to the real-time detection, the plate with quality problems can be quickly identified, inferior-quality products are prevented from entering the next process, the displacement of the sliding plate is used as a feedback mechanism for thickness detection, an intuitive mode is provided for a worker to judge whether the thickness of the plate exceeds the standard or not, and meanwhile a complex electronic sensor or display equipment is not needed.
Owner:DAOZHEN (BEIJING) TECHNOLOGY CO LTD

Back ridge for preventing water seepage and smoke leakage of flue and flue template system

The utility model relates to a back ridge and flue formwork system for preventing water seepage and smoke leakage of a flue, the back ridge comprises a mounting part arranged in a first cavity of a flue main formwork, the bottom surface of the mounting part abuts against a panel of the flue main formwork, and the upper edge of the mounting part does not exceed a side plate of the flue main formwork; each limiting part is arranged on the upper edge of the mounting part and extends towards the two sides from the mounting part, the limiting parts span the side plates of the flue main formwork and the side plates of the adjacent flue corner formworks on the two sides, and the tail ends of the limiting parts can limit the flue corner formworks. The mounting part is arranged in the first cavity of the flue main formwork, most structures of the back edges are embedded into the main formwork, the back edges are designed in a hidden mode, and the back edges are suitable for a narrower space, so that the moving space is larger, and convenience is brought to follow-up formwork disassembly; the flue corner formworks are limited, the formworks are reinforced and prevented from being staggered, and the flue corner formworks on the two sides and the flue main formwork in the middle are connected into a whole.
Owner:SNTO TECH GRP

Tongue-groove-steel sleeve-prestress connection anti-bending joint of full-fabricated concrete beam

The invention relates to a tongue-and-groove-steel sleeve-prestress connection anti-bending joint for a full-fabricated concrete beam. The tongue-and-groove-steel sleeve-prestress connection anti-bending joint comprises a prefabricated concrete notch beam section, an externally-wrapped thin steel sleeve and post-tensioned prestressed steel bars. The two sections of precast beams are connected into a whole through transverse rabbets at the ends of the beam sections, steel-encased sleeves arranged at the end connecting areas, prestressed steel bars in prestressed ducts and the like to form the node overall connecting rigidity, and the rigidity of the whole-span beam structure and the continuity of internal force transmission are achieved. The technical advantages of flexibility, repeatability, replaceability and the like of tongue-and-groove structures, bolt joints, steel-encased sleeves and prestress connection construction are fully utilized, the comprehensive performance is good, longitudinal stressed steel bars at the beam end of the vertical joint face of the tongue-and-groove are discontinuous and do not appear or are embedded or overlapped, and the problems that in the prior art, the standardization degree is low, the structure is complex, and the construction cost is high can be effectively solved. The problems of low bearing capacity, high assembly precision requirement, high quality control difficulty, poor recoverability, repeatability and replaceability, incapability of adapting to extreme weather conditions and the like are solved.
Owner:SOUTHWEST JIAOTONG UNIV

Building system based on fabricated concrete blocks

The invention relates to a building system based on fabricated concrete blocks, comprising: a plurality of fabricated concrete blocks, each fabricated concrete block comprising a splicing wall and a sandwich block arranged between at least two splicing walls; a tenon is arranged at the first end of each splicing wall in the vertical direction, a rabbet is formed in the second end of each splicing wall, and any two adjacent fabricated concrete blocks in the vertical direction are connected through the tenons and the rabbets; the sandwich blocks are arranged in the vertical direction and arranged in the middle areas of the spliced walls connected with the sandwich blocks, a vertical steel bar limiting hole is formed between any two sandwich blocks in the vertical direction, and a horizontal steel bar limiting hole is formed between any two adjacent sandwich blocks in the horizontal direction. Wherein vertical reinforcement cages are arranged in at least part of the vertical reinforcement limiting holes in a penetrating mode, horizontal reinforcement cages are arranged in all the horizontal reinforcement limiting holes in a penetrating mode, and sand aerated concrete is poured into all the vertical reinforcement limiting holes and all the horizontal reinforcement limiting holes.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Prefabricated truss concrete structure assembly type fence and sound insulation wall

The utility model discloses a prefabricated truss concrete structure assembly type fence and sound insulation wall. The prefabricated truss concrete structure assembly type fence and sound insulation wall comprises a plurality of truss concrete wall column units prefabricated in a factory and a plurality of truss concrete wall plate units prefabricated in the factory and arranged between the adjacent truss concrete wall column units. Each truss concrete wall plate unit comprises a concrete plate and a plurality of connecting plates I, a plurality of sound insulation quantity reduction holes are formed in each unit at intervals, and the upper end and the lower end of each truss concrete wall plate unit are further provided with a water retaining upper rabbet and a water flooding lower rabbet respectively. A wallboard steel truss and an anti-crack steel mesh are arranged in the concrete slab, and the connecting plate I is installed on the wallboard steel truss. The truss concrete wall column unit comprises a concrete column and a plurality of connecting plates II, a wall column steel truss and an anti-crack steel mesh are arranged in the concrete column, and the connecting plates II are mounted on the wall column steel truss. The wall plate units and the wall column units are connected through connecting plates. The assembling degree is high, the structure is safe, and parts can be directly detached, can be partially replaced and can be repeatedly used.
Owner:CHONGQING YIRUN CONSTR CO LTD

Non-fine concrete water filter pipe based on 3D printing and preparation method of non-fine concrete water filter pipe

The invention discloses a non-fine concrete water filter pipe based on 3D printing and a preparation method thereof.The water filter pipe comprises a plurality of pipe bodies which are connected with one another and are of a hollow cylinder structure, rabbets are formed in connectors of the upper ends and the lower ends of the pipe bodies, every two adjacent pipe bodies are connected with one another through the rabbets, and the connectors of the pipe bodies are wrapped with dense meshes. The water filter pipe is prepared through the 3D printing technology, and the non-fine concrete water filter pipe manufactured through the preparation method can accurately describe the basic characteristics of pipe body samples such as the pipe body size, the connector shape and the porosity.
Owner:SHAANXI ZHONGJI GEOTECHNICAL ENG CO LTD +1

Adjustable arc-shaped template

The utility model discloses an adjustable arc-shaped formwork which comprises an arc-shaped formwork body arranged between a vertical formwork body and a horizontal formwork body, an isolation layer used for being attached to concrete is arranged on the inner surface of the arc-shaped formwork body, and a reinforcing mechanism is arranged on the outer side of the arc-shaped formwork body. The reinforcing mechanism comprises two first back ridges and a plurality of second back ridges which are arranged on the outer surface of the arc-shaped formwork, and an iron chain used for tightly hooping the arc-shaped formwork is connected between the two first back ridges. The arc-shaped template comprises a plurality of thick aluminum plates and thin aluminum plates which are connected in a staggered mode. By arranging the thick aluminum plates and the thin aluminum plates which are connected in a staggered mode, the arc-shaped formwork can be bent conveniently by bending the thin aluminum plates, by arranging the arc-shaped formwork, the vertical formwork and the horizontal formwork can be combined conveniently to form a formwork with a radian, and therefore walls with different radians can be constructed.
Owner:SHAANXI CONSTR DEV GRP CO LTD

Die capable of being spliced

The mold comprises a workbench, a temperature control module, a mold closing assembly and a liquid injection assembly, multiple sets of fixing shafts are arranged on the upper surface of the workbench and distributed in a mirror symmetry mode along the center line of the width of the workbench, and first positioning plates are fixedly connected to the top ends of the fixing shafts on the two sides; the opposite faces of the two first positioning plates are jointly and fixedly connected with a lower die, and an upper die is spliced to the top end of the lower die. The seam allowance mechanism and the compensation mechanism are arranged, so that the mold closing strength of the split mold is effectively improved, and meanwhile, the thermal expansion difference between different molds in the injection molding process is dynamically compensated; by arranging the injection molding assembly, the height of the injection molding opening in the mold can be freely adjusted, the injection molding opening and the liquid level in the mold are dynamically balanced, and it is effectively guaranteed that injection molding liquid is evenly distributed in the mold.
Owner:GUANGZHOU LIGHT IND TECHNICIAN COLLEGE (GUANGZHOU LIGHT IND SENIOR TECH SCHOOL GUANGZHOU LIGHT IND ADVANCED VOCATIONAL TECH TRAINING COLLEGE)

UHPC (Ultra High Performance Concrete) reinforced large-opening heat-insulating multi-ribbed composite shear wall structure and manufacturing method

The invention provides a heat-preservation multi-ribbed composite shear wall structure adopting ultra-high performance concrete (UHPC) to prefabricate a reinforced frame in a large holed area and a construction method of the heat-preservation multi-ribbed composite shear wall structure. According to the structure, a prefabricated UHPC reinforcing frame unit is arranged on the edge of a hole and reliably connected with a double-layer concrete panel and a dense rib heat preservation frame through concave-convex groove rabbets, shear teeth are arranged in grooves, outwards-extending steel bars are embedded in the grooves, and an enhanced hole stress edge area is constructed. The UHPC reinforced frame has the characteristics of high strength and high toughness, and adopts a gradient transition design with a common concrete wallboard, so that the problems of stiffness mutation and stress concentration of the hole are effectively relieved, initial cracking of the crack is delayed, and the toughness and durability of the structure are improved. The structure is high in prefabrication degree, the traditional ribbed beam thickening requirement is omitted, the light weight degree and the transportation and hoisting efficiency of the wall body are remarkably improved, and the industrial assembly type construction requirement is met. And meanwhile, the structure performance and the heat preservation integrated effect are considered, and the structure is suitable for building envelope systems with large holes in high-rise residences and public buildings.
Owner:HUNAN UNIV

A structure in a sloping land building where the main structure is separated from the retaining wall

The present invention relates to the technical field of construction engineering, and discloses a structure in which the main structure and the retaining wall are separated in a sloping building. The side surface of the main structure column is filled and connected with the air side of the retaining wall by using a flexible and deformable material. The bottom surface of the grounding floor slab is filled and connected with the top of the retaining wall through a first flexible waterproof material. The grounding floor slab and the non-grounding floor slab on the same floor are provided with a rabbet joint filled with a flexible waterproof material for connection, realizing the combined construction of the main structure of the building and the retaining wall but being separated when resisting lateral forces, and releasing the deformation constraints of the grounding floor slab and the non-grounding floor slab, avoiding the disadvantages of the structural form of the integral connection between the retaining wall and the main structure in the prior art: sudden change in the stiffness of the main structure, eccentricity, and torsional irregularity, and cracking of the retaining wall caused by longitudinal constraints. A groove-shaped crossbeam is provided at the top of the retaining wall on the soil side, which not only reduces the bending force at the root of the retaining wall but also intercepts and drains the local seepage water on the back of the retaining wall, achieving reasonable economy in the size of the retaining wall and enhanced waterproof effect.
Owner:GUANGZHOU DESIGN INST