49 results about "Rabbet" patented technology

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.

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.

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 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 relates to the technical field of civil engineering, in particular to a tunnel inverted arch part structure adopting prefabricated ditches, which comprises a central ditch and side ditches, the central ditch and the side ditches are prefabricated parts, leveling mortar is arranged at the bottom of the central ditch, the side ditches are arranged on the sides of the central ditch, and the side ditches are in limited connection with tunnel segments through positioning anchor bolts. The central ditch is communicated with the side ditches through drainage pipes, and concrete is backfilled and poured at the inverted arch part of the tunnel segment between the central ditch and the side ditches. The utility model has the advantages that the groove adopts a high-precision prefabricated part, the quality of a single part is controllable, and the groove is connected by bolts on site without binding reinforcing steel bars and erecting templates, so that the labor and the working hours are saved, and the construction efficiency can be greatly improved; a rubber gasket water stop strip is adopted at the joint of the groove, so that the anti-seepage performance is excellent; the grooves are prefabricated, the tongue-and-groove positions of the grooves are high in flatness, after a covering plate is arranged on the grooves, the covering plate is flat, straight and free of shaking, and when the side ditch top serves as an evacuation or overhaul channel, the comfort degree and the safety degree are higher.

The utility model discloses a pressure pipeline pressure bearing detection device which comprises a workbench, a containing cavity is formed in the workbench in a penetrating mode, two sets of notches with upward openings are formed in the containing cavity, the inner walls of the notches are rotationally connected with two-way lead screws, and the positions of different spiral lines of the two-way lead screws are connected with clamping plates in a penetrating and threaded mode respectively. A supporting base plate is slidably connected to the center of the workbench, and an adjusting lead screw is in threaded connection with the interior of the supporting base plate. A limiting plate is fixedly connected to the outer surface of the end, close to the rotating handle, of the workbench, a sliding block is slidably connected into the limiting plate, and a transparent plate is fixedly connected to the top of the sliding block. According to the pressure pipeline pressure-bearing detection device, the distance between a pressure pipe fixing point and a pressure base plate is far, so that the influence of a clamping plate on the pressure test of a pressure pipe is reduced, the pressure detection structure is more accurate, and meanwhile, a transparent plate is mounted above the workbench, so that the purpose of shielding fragments of the pressure pipe is achieved.

The utility model discloses an assembly type heat preservation and sound insulation composite floor slab, which belongs to the technical field of constructional engineering and comprises a floor slab body, the floor slab body comprises a base layer, a heat preservation and sound insulation layer, an anti-crack layer and a surface layer, the base layer is fixedly connected with the heat preservation and sound insulation layer, the heat preservation and sound insulation layer is fixedly connected with the anti-crack layer, and the anti-crack layer is fixedly connected with the surface layer. According to the assembly type heat preservation and sound insulation composite floor slab, the closed-cell foam plastic cavities can effectively reduce heat conduction, reduce indoor and outdoor heat exchange and reduce building energy consumption, the sound absorption board cavities absorb sound energy, all layers are tightly connected to reduce gap sound leakage, the blocking capacity for air sound and impact sound can be effectively improved, and the sound insulation effect is good. The anti-crack layer buffers stress, protects the internal structure, reduces cracks, prolongs the service life of the floor slab, is firm in interlayer connection, enhances integrity and stability through tongue-and-groove connection, effectively transmits and bears loads, and guarantees building safety.

The invention relates to the technical field of external window anti-seepage construction, and particularly discloses an external wall window opening capillary conduit auxiliary drainage tongue-and-groove plastering structure and a construction method.The external wall window opening capillary conduit auxiliary drainage tongue-and-groove plastering structure comprises a concrete structure layer, a formwork system, a tongue-and-groove pressing strip assembly, a window auxiliary frame assembly, a tongue-and-groove plastering system and a capillary conduit array; the tongue-and-groove pressing strip assembly is fixed to the inner surface of the formwork system, and a concrete structure layer with a step-shaped tongue-and-groove and a tooth-shaped groove is formed after concrete is poured. The window auxiliary frame assembly is fixed to the tooth-shaped groove in a matched mode through the auxiliary frame fixing piece. The tongue-and-groove plastering system covers the outer side of the auxiliary frame and a tongue-and-groove gap, and the capillary guide pipe array is arranged on the outer surface of the tongue-and-groove plastering system, so that an integrated solution of outer window opening tongue-and-groove forming, auxiliary frame fixing and efficient drainage is achieved.

The utility model discloses multi-angle grinding equipment for special-shaped metal parts, which relates to the technical field of special-shaped metal part grinding and comprises a machine table, a transverse guide rail is mounted in the middle of the machine table, and a grinding mechanism for grinding the special-shaped metal parts is slidably connected to the top surface of the transverse guide rail. An adjusting assembly used for adjusting multi-angle grinding of the grinding mechanism is installed on one side of the grinding mechanism and comprises an extension plate, the extension plate is arranged on the upper portion of the transverse guide rail, a notch plate is installed on one side of the extension plate, and a servo motor is installed on the top face of the notch plate. And a threaded rod is mounted at the bottom end of the servo motor. Through precise transmission of the servo motor and the threaded rod and linkage of the telescopic rod and the mounting rod, longitudinal angle adjustment of the grinding belt is achieved, and the grinding belt can be accurately matched with a complex curved surface of a special-shaped part.

The utility model discloses a moisture-proof solid wood composite floor which comprises a floor body, two long sides of the floor body are respectively provided with a rabbet and a tenon, a first waterproof layer is arranged on the outer side of the rabbet, a second waterproof layer is arranged on the outer side of the tenon, two short sides of the floor body are also provided with a third waterproof layer, and the first waterproof layer, the second waterproof layer and the third waterproof layer are all polyurethane coatings. The moisture-proof capability of the side edge of the floor body is improved. The floor body comprises a wear-resistant waterproof layer, a wood skin layer, an upper aluminum foil layer, a buffer layer, a board core layer, a lower aluminum foil layer, a reinforcing layer, a bottom supporting layer, a noise reduction layer and an anti-reflection layer. The wear-resistant waterproof layer guarantees daily wear resistance and reduces wear, the wood skin layer presents natural textures and has good moisture-proof capacity, and the upper aluminum foil layer and the lower aluminum foil layer effectively block moisture in the vertical direction, so that the moisture-proof capacity of the whole composite floor is improved, and the whole durability of the floor is improved.

The utility model relates to the field of back ridges, and discloses a novel light steel keel back ridge which comprises a main back ridge, a plurality of first limiting holes are formed in the outer walls of the two sides of the main back ridge, first sliding grooves are formed in the two sides of the inner top face and the inner bottom face of the main back ridge, and an auxiliary back ridge is connected to the rear end of the inner wall of the main back ridge in a sliding mode. Sliding blocks are fixedly connected to the two sides of the upper surface and the two sides of the lower surface of each auxiliary back ridge. According to the back ridge, the connecting piece is arranged at the front end of the main back ridge, the second limiting groove is formed in the connecting piece, then the second spring and the second adjusting piece are connected in the second limiting groove, the connected piece is arranged at the rear end of the auxiliary back ridge, and the second sliding groove and the second limiting hole are formed in the connected piece. The front end of the connecting piece is connected with the rear end of the connected piece end to end, so that the two back ridges can be firmly spliced together, the splicing process is improved and simplified, manpower and time are saved, and construction efficiency and flexibility are improved.

The utility model discloses a positioning structure for scraping burrs on the surface of a plastic box, which comprises a bottom plate, the top of the bottom plate is fixedly provided with a carrying table and a frame body, the surface of the frame body is provided with a scraping assembly, the top of the carrying table is fixedly provided with an L-shaped baffle, the top of the bottom plate is fixedly provided with a motor, and the bottom of the bottom plate is fixedly provided with an L-shaped baffle. An output shaft of the motor is fixedly connected with a supporting plate through a flange, a sliding rail is welded to the top of the bottom plate, a sliding block is slidably connected to the surface of the sliding rail, and a connecting block is fixedly connected to the surface of the sliding block. The transverse rod drives the vertical rod to move upwards, then the vertical rod stirs the shifting shaft through the U-shaped block and drives the T-shaped block to swing, the T-shaped block drives the pressing block to extrude a plastic box till the plastic box abuts against the L-shaped baffle, the plastic box can be rapidly positioned, and therefore the plastic box is convenient to disassemble and assemble in the burr scraping process; and the purpose of improving the overall efficiency of plastic box burr scraping treatment is further achieved.

The utility model discloses a portable water quality detector which comprises a water quality detector main body, the water quality detector main body comprises a detection main machine, the top end of the detection main machine is provided with a clamping head, a connecting wire is installed in the clamping head in a clamping mode, and the end portion of the connecting wire is provided with a detection head. A counterweight mechanism is also arranged on the water quality detector main body; by designing the counterweight mechanism, the end part of the detection head can penetrate through the interior of an internal thread ring, and after the internal thread ring is rotationally fixed by rotationally connecting the internal thread ring with an external thread structure, the counterweight ring is closed on the surface of the end part of the detection head for counterweight protection; the detection head falls to a position needing to be detected for detection by virtue of the counterweight of the counterweight ring, so that an expected detection position and a detection effect can be conveniently achieved, and the convenience of counterweight placement and detection when the water quality detector main body is used is improved.

The utility model discloses building engineering construction gap filling equipment which comprises a gluing head, a clamping plate film, a clamping plate, a gluing gun and a gluing head connecting piece, the clamping plate is used for being arranged on a gap in a clamping mode, and the glue outlet end of the gluing gun is fixed to the clamping plate. One end of the gluing head connecting piece penetrates through the clamping plate to be communicated with the glue outlet end of the gluing gun, and the other end of the gluing head connecting piece penetrates through the multiple layers of clamping plate films to be connected with the gluing head. The utility model has the advantages that gaps with various widths can be effectively covered by using the clamping plates with the rabbets, and the clamping plates with different specifications are adapted to a larger gap range, so that the gaps can be fully filled with colloid materials, and the requirements of waterproof engineering are met; the clamping plate and the gluing head connecting piece are convenient to carry and install and high in flexibility.

The utility model discloses a novel mortar-free self-built-in assembly type building block structure, which relates to the technical field of assembly type masonry and comprises a main building block, an auxiliary building block, a T-shaped connecting piece and a T-shaped connecting piece accessory, i-shaped rabbets are respectively arranged at the upper ends and the lower ends of the main building blocks and the auxiliary building blocks; the main building blocks and the auxiliary building blocks which are adjacent up and down are occluded through mortises and tenons to realize self-built-in; pouring holes are formed in the main building blocks or between the adjacent main building blocks or between the adjacent main building blocks and the auxiliary building blocks; steel bars are inserted into the pouring holes, and concrete is poured; the steel bars extend to the outer sides of the upper ends of the pouring holes and are poured together with the beam; the T-shaped connecting pieces and the T-shaped connecting piece accessories which are adjacent left and right or the adjacent T-shaped connecting piece accessories are engaged through mortises and tenons to achieve self-built-in. The T-shaped connecting piece is connected with the column; according to the utility model, each overhanging steel bar of the top-layer building block and the beam are poured together to enhance the integrity of the building block structure, and the T-shaped connecting piece is connected with the column, so that the deformation resistance and the shock resistance of the building block structure are improved.

The utility model relates to the field of panel processing, and disclose a carpenter's planer, the utility model discloses a support frame, and the top front and back side of support frame all are fixedly connected fixed seat, and the top middle part between two fixed seats is rotatably connected pivot, and the front and back end of pivot respectively penetrates the outside of two fixed seats, and the outer wall middle part of pivot is fixedly connected planer, and planer is located between two fixed seats, and the rear end outer wall of pivot is fixedly sleeved grinding wheel, and grinding wheel is located the back of back fixed seat, and the left and right sides of grinding wheel all have mount frame, and mount frame is fixedly connected in support frame top, and the top of two mount frames all have frame, and the bottom of frame is fixedly connected connecting plate, and connecting plate is fixedly connected with mount frame, and two frames are distributed left and right symmetrical, and frame is horizontal. The utility model places wood on the support roller, utilizes the rotation of support roller to greatly reduce the resistance of wood movement, effectively reduces the labor intensity, and improves the work efficiency.

The invention relates to the technical field of gravel cleaning, in particular to mining blasting gravel cleaning equipment which comprises a vehicle body, a bucket is arranged on one side of the vehicle body, a water tank is fixedly connected to the top of the bucket, a water pump is fixedly connected to the side face of the bucket, and a spraying pipe is fixedly connected to the inner wall of the bucket. An arc groove is formed in the surface of the spraying pipe, an arc-shaped plate is rotatably connected into the arc groove, and a spraying head is fixedly connected to the surface of the arc-shaped plate. Water in the water tank enters the spraying pipe through the water pump by starting the water pump, when the water enters the spraying pipe, water flow impacts the surface of an impeller, and then a shifting plate rotates; when water flow impacts the surface of the other impeller, the other poking plate rotates reversely, then the spray head swings, dust falling can be carried out in a large range, and the phenomenon of dust flying is avoided.

The invention relates to a corner device and a transmission structure adopting the corner device, the corner device is installed at four corners of a door and window sash profile, a transmission channel is arranged in the corner device, and a first linear channel, a corner channel and a second linear channel are connected in sequence; a first push rod and a second push rod are arranged in the two linear channels respectively, and a plurality of transmission bodies matched with the inner diameter of the corner channel in size are arranged in the corner channel and located between the two push rods. The four corner devices form a closed transmission loop. Two corner devices close to the handle side are connected with a handle transmission rod through vertical push rods, and two corner devices far away from the handle side are connected with hooked rabbet transmission pieces. The upper corner device is transversely connected with the upper horizontal pushing device, and the lower corner device is connected with the lower horizontal pushing device to achieve four-side continuous transmission. Compared with the prior art, the angle turning device has the advantages that the resistance of a transmission part in the angle turning device is reduced, and force applied by a handle is efficiently turned and transmitted at the angle of a door and window sash profile in a low-loss mode; the transmission part of the corner device is prevented from disengaging, and the working stability of the corner device is improved.

The invention discloses a pouring formwork assembly for house building fair-faced concrete construction and a construction method of the pouring formwork assembly, and particularly relates to the field of house building fair-faced concrete construction.The pouring formwork assembly for house building fair-faced concrete construction comprises a box body installed on a rack, and the box body is used for processing side edge rabbets of a fair-faced formwork; a side edge tongue-and-groove processing mechanism is installed in the box body, the side edge tongue-and-groove processing mechanism comprises a hard block processing module, a softening processing module is arranged at the output end of the hard block processing module, and a residual glue processing module is arranged at the output end of the softening processing module; the hard block processing module comprises a shielding shell. Residual glue fragments in the rabbets on the side edges of the fair-faced formworks are treated through the softening treatment module and the residual glue treatment module, differential treatment modules are designed according to fair-faced formwork exclusive structures such as the rabbet side edges and panel covering films, the house building construction batch formwork treatment requirements are met, environment friendliness and controllability are achieved, and the green construction requirements are met.

The utility model relates to an environment-friendly wood floor which comprises a keel plate layer and a solid wood plate layer, and the solid wood plate layer is connected with the keel plate layer through a dovetail slot structure. One side surface of the keel plate layer is provided with a rabbet, and the other side surface is provided with a tenon; a lower accommodating area is arranged at the top of the keel plate layer; an upper containing area is arranged at the bottom of the solid wood board layer, the upper containing area and the lower containing area are of structures extending in the length direction of the floor, and the activated carbon board is placed between the upper containing area and the lower containing area. Air holes are formed in the lower containing area and extend downwards out of the lower surface of the keel plate layer. A plurality of air holes are arrayed along the length direction of the floor to form a row; a plurality of rows of air holes are formed in the lower containing area in the width direction of the floor in an array mode. Compared with a traditional annular plate floor, the annular plate floor has the advantage of being convenient to machine, an activated carbon plate with a larger area can be additionally installed, and the effect is more durable.

The application discloses a kind of structure heat preservation decoration integration shock-absorbing wallboard and production preparation method, including the structure layer, heat preservation layer and decorative layer of sequentially laminated arrangement;The cavity is between the structure layer and decorative layer, and the heat preservation layer is filled and arranged at the cavity to form continuous heat preservation layer body;Multiple through cavities are arranged in the structure layer along the length direction of wall body interval;Decorative layer is provided with middle back arris, and its top and bottom are respectively provided with top rabbet back arris and bottom rabbet back arris;It further includes first shock-absorbing connecting piece and second shock-absorbing connecting piece, and the first shock-absorbing connecting piece is sequentially connected structure layer, heat preservation layer and decorative layer, and the second shock-absorbing connecting piece is arranged in structure layer, and they are used for reducing the vibration energy consumption of wallboard.The application can realize structure, heat preservation, decoration, shock-absorbing integration, give consideration to light weight and efficient construction, improve wall performance, reduce construction cost.

The utility model provides a kind of aluminum mould connecting reinforcing structure for different floor height of high-rise building, it is related to aluminum mould connecting reinforcing technical field, comprising: standard aluminum mould, the standard aluminum mould is vertically set on the plane to be poured, the standard aluminum mould is provided with multiple pairs, and every pair of the standard aluminum mould between is provided with the bolt for positioning; diagonal brace, the diagonal brace is set between the standard aluminum mould and the plane to be poured, the diagonal brace is used to support and fix the standard aluminum mould;Additional plate, the additional plate is erected on the upper surface of the standard aluminum mould, the additional plate outside is provided with back rabbet, and the back rabbet is provided with the bolt. The utility model is based on standard aluminum mould by adding additional plate, and cooperate back rabbet and bolt to be fixed, can respond to the pouring work of different floor height concrete, without the customization of aluminum mould according to floor height, greatly reduce the cost of concrete pouring, with the characteristics of simple structure, convenient operation.

The application relates to a glass assembly and a vehicle, comprising a glass, a bonding portion provided at one end of the glass along a first direction of the glass assembly, a rabbet provided on the glass and exposing the bonding portion, and a trim panel, one end of the trim panel being formed with a sharp corner portion along the first direction, the other end of the trim panel being connected with the bonding portion along the first direction, so that the trim panel and the glass are spliced into an integrated structure along the first direction. In this way, the trim panel can serve as a sharp corner structure of the glass, the assembly and fit of the trim panel, the glass and the rabbet are high, the light and shadow effect is guaranteed, the trim panel is easy to obtain and convenient to install, the glass does not need to be processed into a sharp corner structure, so that the processing difficulty and cost can be greatly reduced, the manufacturing feasibility of the glass assembly is improved, and meanwhile, since the glass does not have a sharp corner structure, the fragmentation test can be qualified.

The utility model relates to building construction device technical field, specifically disclose a kind of adjustable angle rabbet angle puller, including first plasterboard and second plasterboard, the side of first plasterboard is equipped with first connecting piece, the side of second plasterboard is equipped with second connecting piece, further include angle adjusting member for connecting first connecting piece and second connecting piece, when connecting first connecting piece and second connecting piece by angle adjusting member, first plasterboard and second plasterboard adjacent one side edge line fit, and form the gap for accommodating rabbet, angle adjusting member includes the positioning sleeve for connecting second connecting piece, the connecting rod rotatable and slidingly connected with positioning sleeve and the fixing piece for fixedly connected connecting rod and can be detachably connected in the both ends of positioning sleeve, connecting rod is also equipped with the connecting structure for connecting first connecting piece, solve the traditional in plastering construction process, the angle puller for the plastering of rabbet two sides, without angle adjusting function problem.

The utility model relates to the technical field of wood processing, and discloses a rabbet surface polishing device. The rabbet surface grinding device comprises a machining table, an equipment base is arranged at the top end of the machining table, a clamping structure is arranged on the inner side of the machining table, and a dust collection structure is arranged on the equipment base. Through the arrangement of the sliding blocks, the sliding grooves, the moving plate and the clamping base, the sliding grooves at the proper positions are selected according to the length of wood, the sliding blocks at the bottom end of the moving plate are inserted into the sliding grooves, the moving plate and the clamping base move in the sliding grooves through the sliding blocks and the sliding wheels, at the moment, the clamping base is pushed to drive the wood to move left and right, and it can be guaranteed that the wood moves horizontally; and during grinding, the clamping base can be pushed to move towards the front end, the moving block at the bottom end of the clamping base moves forwards through the extension spring, the tenon of the wood is driven to be closer to the grinding disc, and therefore dead-corner-free grinding of the tenon is guaranteed.

The utility model relates to a precast pile centrifugal machine pipe die leveling detection device, which comprises a 2D camera and a centrifugal machine riding wheel, the 2D camera is installed on a centrifugal machine retaining wall, the installation height of the 2D camera and a pipe die rabbet are located on the same horizontal plane, a lens of the 2D camera is right opposite to the pipe die rabbet and a rabbet screw, a pipe die is placed on the centrifugal machine riding wheel, and the centrifugal machine riding wheel is arranged on the pipe die. The centrifugal machine retaining wall is vertically arranged on the side edge of the centrifugal machine riding wheel. By the adoption of the precast pile centrifugal machine pipe die leveling detection device, the leveling function after pipe die centrifugation is achieved in the mode that the upward angle of a die assembly screw and the horizontal angle of a notch are detected through 2D vision, the production requirement for pipe die leveling is met, and the purposes of being high in leveling efficiency, unmanned, intelligent and accurate are achieved.

The utility model provides a herringbone adjustable U-shaped back ridge reinforcing device for a sash beam, which is characterized in that two L-shaped square tubes are connected through a spacing adjusting square tube to form an inverted U-shaped square tube, a plurality of inner side angle steels are welded on the inner side of the inverted U-shaped square tube, bottom angle steels are respectively welded on two sides of the bottom of the inverted U-shaped square tube, and L-shaped steel bars are connected on the bottom angle steels; the device has the main advantages that the device is few in applicable material types, simple to process and simple and convenient to install, can be matched with a plastic steel template for use, and can be repeatedly used.