158 results about "Rabbet" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The utility model provides a pipe die cleaning mechanism which comprises a cleaning machine frame, a cleaning driving source installed on the cleaning machine frame, a cleaning transmission assembly, a transmission sliding block installed on the cleaning machine frame in a reciprocating motion mode and a cleaning scraper installed on the transmission sliding block, and the cleaning driving source is in transmission connection with the transmission sliding block through the cleaning transmission assembly. The cleaning scraper comprises a scraper body, a first scraper blade arranged at the bottom of the scraper body, a scraper protruding part protruding downwards from the bottom of the scraper body and a second scraper blade arranged at the bottom of the scraper protruding part, and the first scraper blade can be in contact fit with the tongue-and-groove face of the die edge of the pipe die. The scraper protruding part can be arranged in a sealing groove in the edge of the pipe die, and the second scraper blade can be in contact fit with the groove bottom of the sealing groove. The first scraper blade and the second scraper blade at the bottom of the cleaning scraper are used for effectively cleaning the tongue-and-groove surface and the sealing groove of the pipe mold edge, the cleaning effect is good, the pipe mold cleaning quality is improved to a great extent, and the development requirement of automatic production equipment is met.

The invention provides a magnetic shielding panel measuring and positioning tool which comprises a tool base body installed on a magnetic shielding panel section bar, and the tool base body comprises a reference seat and a measuring assembly detachably connected to the upper portion of the reference seat. An inserting part is arranged at the bottom of the reference seat, and is matched with a tongue-and-groove of the profile to form a measuring reference; the measuring assembly comprises a vertical stand column and spacing measuring pieces symmetrically arranged on the two sides of the stand column. The spacing measuring piece can slide along the height direction of the stand column, and the measuring end extends to the upper surface of the magnetic shielding panel. According to the scheme, the insertion part at the bottom of the tool base body is in small clearance fit with the rabbet of the profile to form a stable measurement reference, and precise positioning is achieved by combining the bilateral spacing measurement pieces symmetrically arranged on the vertical stand column. The height of the distance measuring piece can be longitudinally adjusted to extend to the upper surface of the panel, the influence of an installation inclination angle is eliminated through a self-adaptive structure, the operation difficulty of constructors is remarkably reduced while the precision is ensured, and the core defect that the adaptability to complex working conditions is insufficient in the prior art is overcome.

The utility model discloses a floor slab connecting structure which comprises a plurality of prefabricated slabs, the two sides of each prefabricated slab are provided with a rabbet and a tenon respectively, the prefabricated slabs are connected end to end through the rabbets and the tenons in a matched mode, the rabbets are provided with first through holes, and the tenons are provided with second through holes corresponding to the first through holes; a third through hole corresponding to the second through hole is formed in a top plate of the first T-shaped beam, and the first T-shaped beam is connected to the bottom of the tenon through a bolt; the first T-shaped beam and the second T-shaped beam are connected and spliced through bolts to form an I-shaped beam. A part of the beam body, namely the first T-shaped beam, is arranged on the prefabricated slab on the ground on site, and the prefabricated slab is in right-angle butt joint with the second T-shaped beam when being in butt joint in the air, so that the construction efficiency of butt joint of the prefabricated slab and the beam body is improved, and butt joint of a floor slab and a frame column can be rapidly completed.

The utility model discloses an L-shaped rabbet construction device for a composite rock wool non-dismantling formwork, relates to the technical field of constructional engineering, and can improve the installation speed and quality of a heat preservation plate and effectively improve the quality and performance of a building. The L-shaped tongue-and-groove construction device for the composite rock wool non-dismantling formwork comprises a heat preservation plate fixedly connected with a main body shear wall and an inner side formwork arranged on the other side of the main body shear wall opposite to the heat preservation plate. SR connecting pieces are stuffed into reserved holes of the heat preservation plates; the integrated profile steel reinforcing device is made of a galvanized square steel pipe, and a hoisting ring is reserved at the top; the integrated profile steel reinforcing device is hoisted at the bottom supporting device through a hoisting ring; the double-square steel pipe transverse edges are used for reinforcing the whole formwork by fastening the split bolts; the supporting device and the inner side formwork are reinforced through steel pipe transverse edges of the two parties and split bolts. And the lifting device is provided and connected with an L-shaped tongue-and-groove device.

The planing device comprises a machine table, a spiral roll shaft planing tool and a portal frame, and automatic board conveying mechanisms are symmetrically arranged on the portal frame and located above the machine table; the automatic wood board conveying mechanism comprises a base plate, a driving roller shaft, a driven roller shaft, a transmission belt arranged on the driving roller shaft and the driven roller shaft in a sleeving mode and multiple sets of wood pressing mechanisms evenly arranged along the path of the transmission belt. The wood pressing mechanism comprises an L-shaped plate, a plank side pressing head, a plank upper pressing plate and a connecting rod assembly, the L-shaped plate is fixed to the transmission belt, the plank side pressing head is horizontally and slidably arranged on the vertical section of the L-shaped plate, the plank upper pressing plate is vertically and slidably arranged on the horizontal section of the L-shaped plate, a first spring is arranged in the vertical section, and the connecting rod assembly is connected with the plank side pressing head and the plank upper pressing plate; according to the wood board bottom planing device, wood boards with different thicknesses, widths and lengths can be automatically pressed and conveyed under constant pressure, and planing of the bottoms of the wood boards is achieved.

The utility model discloses a sliding door hooked rabbet with a locking structure and a panoramic sliding window, and belongs to the technical field of doors and windows. The sliding door hooked rabbet with the locking structure comprises a hooked rabbet body, a hooking part, a locking part, a bolt part and an operation part. The hooked rabbet body is provided with a fixing clamping groove used for fixing glass. The hooking part is arranged on the hooked rabbet body; the locking part is arranged on the side, away from the hooking part, of the hooked rabbet body, and the locking part is provided with a containing cavity; the bolt part is arranged in the accommodating cavity in a lifting manner; one end of the operation part is arranged on the locking part, the other end of the operation part extends into the containing cavity to abut against the bolt part, and the operation part can drive the bolt part to extend out of or retract into the containing cavity. According to the sliding door hooked rabbet with the locking structure, occupation of the locking structure on the width size of a door leaf cavity can be reduced, and therefore the panoramic effect of a panoramic sliding door is enhanced.

The utility model provides an integrally-formed rabbet chain which comprises a plurality of decorative inlaying seats, every two adjacent decorative inlaying seats are connected through a connecting inlaying seat, and each connecting inlaying seat is provided with two oppositely-arranged connecting ring buckles. The two oppositely-arranged connecting ring buckles are connected to the two adjacent decorative inlaying bases respectively so that the decorative inlaying bases and the connecting inlaying bases can be sequentially connected in series. The utility model solves the technical problems that the production efficiency is low and the assembly precision is difficult to control due to the fact that the independent movable rabbet needs to be manually assembled in the prior art.

The invention relates to the technical field of building formworks, in particular to a novel fair-faced building structure formwork which comprises four wood formworks, the four wood formworks form a reinforced concrete pile pouring space, the thickness of each wood formwork is 15 mm, external corner strips are arranged at the adjacent corners of the four wood formworks, stainless steel plates are installed on the inner sides of the wood formworks through countersunk bolts, and the stainless steel plates are connected with the external corner strips through bolts. According to the invention, a common wood formwork is adopted to cover a stainless steel plate to serve as a panel, the back ridges are replaced by galvanized steel pipe back ridges, and the galvanized steel pipe back ridges, the square pipe buckles, the connecting assemblies and the fixing assemblies are connected to form an integral structure; the problems of overlarge self weight, difficulty in form removal, deformation of back ridges, easiness in damage of formworks and the like are solved, the technical effects that the number of technical workers is reduced by 70%, the construction efficiency is improved by 40%, and the cost is saved by 50% are achieved, and compared with traditional steel forms and plastic-coated formworks, the technical effects can be achieved through practical engineering verification.

The utility model discloses a connecting structure for a concrete beam and a steel cover plate, which comprises concrete beam edge protection angle steel arranged on the bottom surface of a rabbet of the concrete beam and a steel plate folding piece arranged on the top surface of the rabbet of the concrete beam, and the end part of the steel cover plate is lapped on the concrete beam edge protection angle steel. The whole steel plate folding piece is of an inverted-U-shaped structure, and the two ends of the bottom of the steel plate folding piece are fixedly connected with the concrete beam edge protection angle steel located at the tongue-and-groove positions of the two ends of the concrete beam in the width direction correspondingly. According to the connecting structure for the concrete beam and the steel cover plate, the steel cover plate is placed on the concrete beam on the basis of an existing structure, and the corresponding steel plate folding piece and the protective edge angle steel are additionally arranged according to the tongue-and-groove type of the concrete beam; the overall attractiveness and practicability, caused by construction errors, of the steel cover plate placed on the concrete beam are effectively improved.