187 results about "Keel structure" patented technology

The invention relates to the technical field of building curtain wall keel structure design, and discloses a curtain wall keel structure intelligent optimization design method, which comprises the following steps: firstly, obtaining geometric parameters, load distribution data and material performance indexes, and verifying the geometric parameters, the load distribution data and the material performance indexes; analyzing the verified data to generate multi-dimensional structure characteristic parameters, and constructing a structure optimization reference model; keel structure data are verified in real time according to the model, and abnormal matching of node displacement and stress distribution is quantitatively evaluated; according to a verification result, generating a structural anomaly index to judge a design defect; and when defects exist, optimization design schemes including keel section adjustment, node reinforcement and the like are automatically generated and sequenced. According to the method, multiple factors are comprehensively considered, multi-objective optimization is achieved, the curtain wall keel structure design quality and efficiency can be improved, the structure safety is guaranteed, and the cost is reduced.

The high-strength gypsum fiber keel comprises a U-shaped keel structure and a tooth-shaped keel structure, the U-shaped keel structure comprises a first plate body, first mounting holes and outer edge plates, the outer edge plates are connected to the two ends of the first plate body, and meanwhile the first mounting holes are formed in the first plate body; and the tooth-shaped keel structure comprises a second plate body, a second mounting hole, a tooth groove and a convex plate. According to the high-strength gypsum fiber keel, by-product gypsum is adopted as a raw material of the keel and is a resource comprehensive reutilization material, the gypsum fiber keel is an inorganic material and an environment-friendly A1-level fireproof material, and gypsum is used as a keel material and is better combined with other surface materials such as gypsum jet wall mortar, so that the gypsum jet wall can be better combined with other surface materials; separation caused by thermal expansion and cold contraction during long-term use can be avoided, and meanwhile corrosion of light steel keel materials after long-term use is avoided.

The utility model discloses a marble slab dry hanging anti-falling structure which comprises a plurality of marble slabs and a pre-assembling device, and the pre-assembling device is composed of a keel structure and two opposite pre-buried steel belts, the keel structure is formed by interweaving a plurality of vertical keels and a plurality of transverse keels, the radial section of the keel structure is in a net shape, every two adjacent transverse keels are in clearance fit, the transverse keels and the adjacent vertical keels are combined to form a grid area, and stainless steel connecting pieces are connected between each vertical keel and the transverse keels. The two ends of the vertical keels are connected with the embedded steel belts correspondingly, and the transverse keels are provided with anti-falling pieces used for being connected with the marble slabs and preventing the marble slabs from falling off and damping pieces used for being installed between the marble slabs and the transverse keels. The problem that in the prior art, a transverse keel, a vertical keel, a marble fastener and a connecting part are rusted and fractured, so that a marble slab of a marble dry-hanging outer ring falls off is solved.

The invention relates to the technical field of curtain wall structures, in particular to an accessory-assembly-free unit type partition wall system which comprises at least two vertical keels and transverse keels transversely arranged between the two adjacent vertical keels, and the end faces of the sides, facing the transverse keels, of the vertical keels are connected and locked with the vertical keels in an inserted mode; wherein the vertical keels comprise a first vertical keel and a second vertical keel, two opposite end surfaces of the first vertical keel are respectively a convex part and a concave part, the cross section of the second vertical keel is I-shaped, and concave surfaces on two sides of the second vertical keel are matched with the concave part of the first vertical keel in an inserting manner. By means of the mode that the transverse keels and the vertical keels are directly connected in a lap joint mode, installation can be rapidly completed, finally, fastening is conducted only through screws, the advantages of being easy to install and low in cost are achieved, and in addition, when the whole keel structure is assembled in a factory or on site, fixing between the transverse keels and the vertical keels can be rapidly completed.

The utility model relates to the technical field of curtain wall structures, in particular to a unit type partition wall system free of accessory assembly, which comprises at least two vertical keels and transverse keels transversely arranged between the two adjacent vertical keels, and the end faces of the sides, facing the transverse keels, of the vertical keels are connected and locked with the vertical keels in an inserted mode. Wherein the vertical keels comprise a first vertical keel and a second vertical keel, two opposite end surfaces of the first vertical keel are respectively a convex part and a concave part, the cross section of the second vertical keel is I-shaped, and concave surfaces on two sides of the second vertical keel are matched with the concave part of the first vertical keel in an inserting manner. By means of the mode that the transverse keels and the vertical keels are directly connected in a lap joint mode, installation can be rapidly completed, finally, fastening is conducted only through screws, the keel structure has the advantages of being easy to install and low in cost, and in addition, when the whole keel structure is assembled in a factory or on site, fixing between the transverse keels and the vertical keels can be rapidly completed.

The utility model discloses a stone needle microneedle patch with a keel structure, which comprises a patch layer, a stone needle is arranged at the center of the patch layer, the stone needle comprises a stone needle table and a stone needle head, and a plurality of keels are arranged on the stone needle head. The keels stimulate the peripheries of the acupuncture points, the acupuncture points and the peripheries of the acupuncture points can be effectively stimulated, the overall physical therapy effect is improved, a pattern-shaped groove is formed after physical therapy, and the attractiveness is higher.

The present invention belongs to the technical field of keels, and particularly relates to an assembled keel structure, which includes a longitudinal beam layer and a hoisting component for hoisting the longitudinal beam layer. There are several hoisting components, and several hoisting components are distributed in a rectangular array. The longitudinal beam layer includes longitudinals distributed at equal intervals. A first connecting component is fixedly connected inside the longitudinal beam and is distributed at equal intervals along the length direction of the longitudinal beam. The longitudinal beam is snap-connected to the bottom end of the hoisting component through the first connecting component. A second connecting component is arranged at the bottom end of the longitudinal beam layer and is distributed at equal intervals along the length direction of the longitudinal beam. In the present invention, the longitudinal beam is snap-mounted with the hoisting component through the first connecting component. During installation, only the rectangular block needs to be passed through the rectangular groove and then rotated to achieve connection, which is convenient for installation and improves the installation efficiency. The cross beam is snap-mounted with the longitudinal beam through the second connecting component, further improving the installation efficiency. No harmful substances are generated during the installation process of the entire keel.

The utility model discloses a suspended ceiling side keel installation structure which comprises a suspended ceiling plate and a plurality of side keels installed on the side edge of the suspended ceiling plate, each side keel is of an L-shaped keel structure composed of a side keel vertical part and a side keel transverse part, and the side keel transverse parts are located below the suspended ceiling plate to support the suspended ceiling plate. The vertical part of the side keel is provided with a buckle structure, the side edge of the suspended ceiling plate is provided with a clamping part matched with the buckle structure, the side keel is connected with the clamping part of the suspended ceiling plate in a buckled mode through the buckle structure, and the side edge of the buckle structure on the side keel is provided with a crack stopping groove. The suspended ceiling plate is simple in structure, the suspended ceiling plate can be buckled only by slightly buckling the suspended ceiling plate downwards with force during installation, the suspended ceiling plate and the edge keel can be released only by pushing the edge of the suspended ceiling plate upwards with force when the suspended ceiling plate needs to be disassembled, and the suspended ceiling plate and the edge keel are easy and convenient to install and disassemble.

The utility model relates to the technical field of light steel keel structural parts, and discloses a wall keel structural part of a light steel house, which comprises a base plate, the bottom of the base plate is connected with an inclined plate through a hinge, one end of the inclined plate is connected with an L-shaped plate through a hinge, the outer surface of the inclined plate is fixedly connected with a first lug block, and the outer surface of the first lug block is rotatably connected with a connecting rod. One end of the second lug block is fixedly connected with a positioning ring, an adjusting rod is connected into the positioning ring in a threaded mode, a bottom piece is installed at the bottom end of the adjusting rod, a cross-shaped rotary knob is fixedly connected to the top end of the adjusting rod, and a limiting ring is fixedly connected to the outer surface of the adjusting rod. When the adjusting rod rotates, the adjusting rod cannot be fed in the through hole of the base plate, the bottom piece can abut against the inner bottom face of the groove-shaped keel, the two L-shaped plates are matched to abut against the left upper corner and the right upper corner of the groove-shaped keel, a stable triangular area can be formed, connection between the connecting piece and the groove-shaped keel is firm, and looseness is not prone to occurring.

The keel structure suitable for the multi-angle curtain wall comprises a U-shaped adapter, a T-shaped adapter, a keel, a support and a fastener, one end of the U-shaped adapter is fixedly connected to a main body steel structure, the other end of the U-shaped adapter is connected with the keel through the T-shaped adapter, the side, away from the T-shaped adapter, of the keel is wrapped in the support, and the fastener is arranged on the T-shaped adapter. The T-shaped adapting piece is arranged at the upper end of the keel, the U-shaped adapting piece is arranged at the lower end of the T-shaped adapting piece, the T-shaped adapting piece is arranged at the lower end of the T-shaped adapting piece, the supporting seat can rotate with the keel as the center, the angle of the supporting seat can be adjusted, and a fastener for fixing the keel and the supporting seat into a whole is further arranged at the lower end or the upper end of the supporting seat. A main body steel structure and a curtain wall can be connected only through the U-shaped adapting piece, the T-shaped adapting piece, the keel, the supporting seat and the fastener; installation is convenient and fast, and stability is good; the supports are rotationally adjusted with the keels as the centers, multi-directional adjustment between the supports and the keels is achieved, and the multi-angle installation requirement of the curtain wall is met.

The application provides a positioning pre-control assembly, which comprises a positioning tool and a clamp. The positioning tool comprises a quadrilateral structure, which comprises a first side and a second side, and the first side and the second side are used for abutting against the inner edge of a secondary keel; the clamp is used for fixing the positioning tool on the secondary keel and comprises a first fixing strip, a second fixing strip, a first connecting part and a second connecting part. The first connecting part and the second connecting part are respectively located on the two sides of the secondary keel along the X-axis direction and are used for clamping the first fixing strip and the second fixing strip in the Z-axis direction, the first fixing strip and the second fixing strip extend along the X-axis direction and jointly exert a clamping force along the Z-axis direction on the secondary keel and the first side or the second side. The positioning pre-control assembly can effectively reduce the spacing error between two secondary keels, can stably support the keel structure and is convenient for subsequent pre-punching on the secondary keel. The application also provides an aluminum plate curtain wall positioning pre-control method.

The present invention belongs to the technical field of building workpieces, and specifically relates to an adjustable connector between a light steel keel exterior wall and a main body, comprising an exterior wall and a keel structure, wherein the side wall of the exterior wall is fixedly connected to the connector via expansion bolts, and the keel structure is fixedly installed on the outside of the exterior wall via the connector, and one end of the connector is provided with a first adjustment structure for adjusting the position of the connector horizontally and vertically, and one side of the connector is provided with a second adjustment structure for adjusting the position of the keel structure horizontally and laterally. In the present invention, when adjusting the position of the connector horizontally and vertically, the first strip hole moves along the expansion screw, while the position in other directions remains unchanged, the keel structure moves along the second strip hole to a horizontal and laterally position, and the keel structure moves along the third strip hole to adjust the position in the vertical direction. When the keel structure adjusts its position in one direction alone, its position in the direction remains unchanged, facilitating high-precision adjustment of the position of the keel structure.

The utility model provides an aluminum plate curtain wall keel structure, and relates to the technical field of building outer wall decoration structures, the aluminum plate curtain wall keel structure comprises an embedded part, a vertical keel and a horizontal keel, the front side of the embedded part is provided with an I-beam extending forwards, the I-beam is provided with a horizontal groove hole extending horizontally, the vertical keel is provided with a vertical groove hole, and the horizontal groove hole is provided with a horizontal groove hole extending horizontally. The horizontal slotted hole and the vertical slotted hole piece are connected with a connecting assembly, the connecting assembly comprises a connecting bolt, a nut sleeve and a positioning beam plate, one end of the positioning beam plate is inserted into the vertical slotted hole in a horizontal sliding mode, and the two ends of the positioning beam plate abut against and are clamped to the vertical keel and the I-shaped beam respectively. The positioning beam plate abuts against and is clamped on the I-shaped beam and the vertical keel, so that the installed vertical keel and the I-shaped beam can be clamped and locked, and the vertical keel is prevented from sinking relative to the embedded part.

The utility model discloses a quick assembly keel structure for an assembly type light partition wall, which comprises a main frame, a plurality of connecting pieces and a plurality of connecting pieces, the vertical beams are vertically arranged in the main frame at intervals; the locking piece comprises a locking pipe, a locking plate, a mounting plate and a locking hook, the locking pipe is vertically connected to the vertical beam in a sliding mode, the locking plate is horizontally arranged at the end of the vertical beam, the mounting plate is horizontally arranged on the main frame, and the locking hook is arranged on the mounting plate and used for penetrating through and hooking the locking plate; the cross beams are horizontally arranged between the main frame and the vertical beams and between the adjacent vertical beams, insertion rods are arranged at the two ends of each cross beam, and insertion holes allowing the insertion rods to be inserted are formed in the main frame and the vertical beams. The sliding type locking pipes are arranged at the two ends of the vertical beams and matched with the locking hooks fixed in a clamped mode, so that the vertical beams are rapidly installed and fixed, meanwhile, the cross beams fixed in an inserted mode are adopted, rapid fixing of the cross beams is achieved, welding-free installation and fixing of the whole keel are completed, and the effect of improving construction efficiency is achieved.

The terminal keel structure construction device comprises a base, a fourth motor is fixedly mounted at the top of the base, a rotating shaft is rotatably mounted at the top of the base, a second gear fixedly sleeves the rotating shaft, and a connecting plate fixedly sleeves the top end of the rotating shaft; and an output shaft of the fourth motor is fixedly sleeved with a first gear engaged with the second gear, two mounting plates and a fixing plate are fixedly mounted at the top of the connecting plate, and a guide wheel is rotationally mounted on the fixing plate. The terminal building keel structure construction device is simple in structure and convenient to use, a keel for building a terminal building structure main body is conveniently and rapidly positioned and fixed, hoisting construction is facilitated, in the winding process, a reciprocating line pressing structure is utilized, so that a cable does not jump, the winding stability is improved, stable hoisting is facilitated, and the construction efficiency is improved. And construction of the terminal structure main body is facilitated.

The utility model discloses a bevel lamp trough keel structure, and relates to the technical field of suspended ceilings. The bevel lamp trough keel structure comprises a keel body, a lampshade fixing protrusion and a mortise and tenon joint assembly connecting part. Wherein the keel body comprises a first end, a second end and a main body connected between the first end and the second end, the first end of the keel body extends in the first direction, and the first side face of the first end of the keel body is a plane and used for being attached to support a gypsum board extending in the horizontal direction; the lampshade fixing protrusion is located at the second end of the keel body and used for installing a lampshade. And the mortise and tenon assembly connecting part is located at the second end of the keel body and used for mortise and tenon connection to be assembled on the bearing keel, and the ceiling speed is effectively increased by using the keel structure.

The invention discloses a keel structure of an assembly type overhead ground, the assembly type overhead ground and an installation method, and belongs to the technical field of decoration. The keel structure comprises two side keels and a plurality of parallel main keels. The side keels can be horizontally fixed to the positions, at the same height, of the two oppositely-arranged walls respectively. The side keels are provided with horizontal mounting planes; the main keels are arranged between the two side keels, the two ends of each main keel are fixed to the installation planes of the two side keels respectively so that the two ends of each main keel can be located at the same height, and the lower surface of each main keel is provided with two contact faces which are located on the two sides of the central axis of the main keel respectively and make contact with the installation planes. A plurality of adjustable supporting legs located between the two contact faces are arranged on the main keel at intervals, and the lower ends of the adjustable supporting legs can move up and down relative to the main keel and make contact with the ground so as to support the main keel and level the main keel. Leveling can be facilitated, and a good stabilizing effect is achieved.

The utility model discloses a fabricated building wall with a keel structure, which relates to the technical field of building walls and comprises transverse keels symmetrically arranged up and down and a plurality of vertical keels arranged between the transverse keels on two sides, the transverse keels are provided with positioning grooves, and the number of the positioning grooves is equal to that of the vertical keels. First inserting holes are transversely formed in the tops and the bottoms of the vertical keels in a penetrating mode, second inserting holes with the diameter equal to that of the first inserting holes are transversely formed in the transverse keels in a penetrating mode, inserting rods are connected to the transverse keels in an inserting mode, a filling piece is arranged between every two adjacent vertical keels, and each filling piece is composed of two reinforcing pieces with the same specification. According to the building wall, connection between the multiple vertical keels and the two transverse keels is achieved through the positioning grooves, the first inserting holes, the second inserting holes, the inserting rods and the nuts, assembling is more convenient and faster, meanwhile, the building wall can continue to be used after being disassembled, the filling piece is arranged and composed of two triangular reinforcing pieces, and the structural stability of the building wall is improved.

The utility model relates to the technical field of building construction, in particular to a length-adjustable keel structure. The two L-shaped frameworks are in lap joint, the lap joint length of the two L-shaped frameworks is adjusted, a keel structure with the adjustable length is formed, the two long edges are firmly connected together through the hoop assembly, the bending resistance of the two L-shaped frameworks is greatly improved through the limiting rod, the limiting rod is inserted into the short edge of the other L-shaped framework, and therefore the length of the two L-shaped frameworks can be adjusted. The horizontal position of the limiting rod is limited through the abutting assembly, the limiting rod is prevented from retreating, meanwhile, the stability of the middle position of the limiting rod is improved, the rear end of the limiting rod and the long edge are clamped and fixed through the locking piece, and the stability of the limiting rod is further improved.

The present application discloses a hanging curtain wall connection and fixing device, which relates to the technical field of curtain walls, including a keel structure, and also including several preset structures, wherein the keel structure includes several vertical keels and several horizontal keels, wherein the preset structure is fixedly arranged on the outside of the wall, and the vertical keels are connected to the preset structure; the two ends of the horizontal keel are respectively connected to the two vertical keels; and also including several hanging structures, wherein the hanging structure is arranged on the horizontal keel, and the hanging structure includes a hook member, a clamping member, and a first linkage assembly, wherein the hook member is slidably connected to the horizontal keel, the clamping member is rotatably connected to the horizontal keel, and the hook member slides through the first linkage assembly to drive the clamping member to rotate; the curtain wall has several hanging parts, and the hanging parts are provided with hanging grooves. The present application can make the installation process of the hanging curtain wall more convenient and quick, simplify the operation, and improve the efficiency.

The present invention discloses a high-strength keel structure, which belongs to the field of keel accessories, including a first keel and a connecting seat, a mounting structure is arranged on one side of the first keel, the mounting structure includes a connecting block protruding from the connecting seat, a groove is arranged on one side of the first keel for the connecting block to be sunk into and installed, a first clamping groove is arranged on the groove wall adjacent to the groove opening of the groove, a second clamping groove is arranged on the connecting block, and after the connecting block is installed in the groove, the first clamping groove and the second clamping groove are combined to form a clamping part, and a clamping part is arranged in the clamping part to limit the connecting block from being separated from the groove. With such an installation structure, the connecting seat can be flexibly used to efficiently complete the connection and installation operation, and the connecting seat can be installed at any position in the length direction of the first keel, and the installation efficiency is extremely high.

The utility model belongs to the technical field of sandwich external wall panels, and discloses a metal rock wool sandwich panel external wall connecting node which comprises a keel structure, a plurality of metal rock wool sandwich panels spliced in sequence and a plurality of self-tapping screws. The keel structure is arranged on the wall body structure, the metal rock wool sandwich panels which are sequentially spliced are arranged on the keel structure in an overlapped mode, a mounting cavity is formed in the metal panel in a surrounding mode, the mounting cavity is filled with rock wool, a first connecting part is arranged at one end of the metal panel, a second connecting part is arranged at the other end of the metal panel, and a plurality of grooves are formed in the first connecting part. A plurality of protrusions are arranged on the second connecting part and extend into the grooves in a one-to-one correspondence mode. A self-tapping screw is arranged on the second connecting part of each metal rock wool sandwich plate in a penetrating manner, and the metal rock wool sandwich plates are fixed on the keel structure through the self-tapping screws. The structure is easy and convenient to operate, the connecting joints have high stability, and the heat preservation performance of the wall structure can be ensured.

The utility model discloses a combined type F-shaped keel structure which comprises a C-shaped plate and an inverted L-shaped plate which are integrally formed, a first clamping portion is arranged at the bottom end of the C-shaped plate, a second clamping portion is arranged at the top end of the inverted L-shaped plate, and the first clamping portion is matched with the second clamping portion in a clamping mode. The combined F-shaped keel structure is convenient to disassemble and assemble, convenient to transport and convenient to adjust, and particularly convenient to adjust the shape of a suspended ceiling in keel suspended ceiling operation.

The invention provides a modular support for two-side construction and application of the modular support, the modular support comprises a plurality of layers of trusses formed by splicing, and the multiple layers of trusses are sequentially supported and connected through telescopic mechanisms from bottom to top to form the modular support; the at least two groups of supporting assemblies are positioned at the top of the modular bracket and form a supporting area of the prefabricated slab; the keel structure is located between the two sets of supporting assemblies, the keel structure is in lap joint with the top of the modular support, and a pouring area of the main beam is formed between the keel and the two sets of supporting assemblies; and the lifting assembly is located at the bottom of the modular support, in the pouring construction of the main beam, the lifting assembly ascends to enable the modular support to be in a suspended supporting state, and after pouring of the main beam is completed, the lifting assembly descends to enable the modular support to be in a landing contact state. Movement is convenient through the modularized support, and the modularized support and hoisting of the prefabricated slab are constructed in a staggered mode, so that the construction efficiency is improved.

The present invention relates to the field of interior decoration, and particularly to a hanging keel and an installation method thereof. The hanging keel includes a hanging member, and an accommodation cavity is provided at the upper end thereof. A notch is provided on one side of the accommodation cavity, and a stress support plate is provided above the notch. It also includes a concave keel which is arranged inside the accommodation cavity. One side of its cross-section includes a bent edge that abuts against the stress support plate. The upper end of the bent edge abuts against the stress support plate of the accommodation cavity, and the lower end of the bent edge is in contact with the bottom of the accommodation cavity. A straight edge that abuts against the other side of the accommodation cavity is provided on the other side of the concave keel, and there is a gap between the bottom of the straight edge and the bottom of the accommodation cavity. The single-layer hanging keel structure in the present invention can effectively reduce the floor height occupied by the keel. Through the unique design of the keel structure, the stress of the keel is dispersed, thereby increasing the sectional moment of inertia of the concave main keel and improving the stability of the keel structure.

The utility model relates to the technical field of house building structures, and discloses a house building steel keel structure which comprises a connecting plate, connecting blocks are slidably connected to the left side and the right side of the top of the connecting plate, inserting blocks are fixedly connected to the sides, away from each other, of the two connecting blocks, and first sliding grooves are formed in the tops of the two inserting blocks. First sliding blocks are slidably connected into the two first sliding grooves correspondingly, keel strips are arranged on the left side and the right side of the connecting plate correspondingly, inserting grooves are formed in the adjacent sides of the keel strips at equal intervals, fixing grooves are formed in the tops of the keel strips at equal intervals, and the multiple inserting grooves communicate with the corresponding fixing grooves. And one end of the interior of each fixing groove is slidably connected with a moving block. According to the house building steel keel structure, the inserting block is inserted into the inserting groove of the keel strip, the pushing block is pushed to enable the moving block to move, fixing and limiting of the pushing block and the first sliding groove are achieved, and firmness and stability of connection of the house building steel keel structure are guaranteed.

The present invention belongs to the field of building technology, and specifically relates to a leak-proof structure of a building. The leak-proof structure of the building includes a keel structure, the side of the keel structure is fixedly connected to a wall, the interior of the keel structure is filled with a foamed cement board, the keel structure includes multiple upper keels, multiple lower keels and multiple frames, the bottom ends of the multiple upper keels are all provided with multiple first connection ports inwardly, the top ends of the multiple lower keels are all provided with multiple second connection ports inwardly, the top of the keel structure is paved with a first waterproof cloth layer, and the top of the first waterproof cloth layer is fixedly connected with a first mortar layer; the keel structure of the present invention is reasonably designed, and each part is of the same height, in fact, the entire floor structure is divided into closed blocks, the structure is stable, and two layers of waterproof cloth are provided. Unlike waterproof mortar or other materials, the waterproof cloth is a soft material and will not crack due to moisture, so large-area cracks will not be generated, and moisture penetration can be prevented.

The utility model belongs to the technical field of decoration plates, and discloses a decoration dry-hanging light steel keel structure which comprises a clamping keel, a hanging spring penetrates through a screw hole in the top end of the clamping keel, a fixing pipe is spirally arranged at the top end of the outer side of the hanging spring, and a hanging assembly is further arranged in the clamping keel. The hanging assembly comprises rotating sleeves rotationally arranged on the inner walls of the two sides of the clamping keel, limiting frames are rotationally arranged in the rotating sleeves, first bolts penetrate through the centers of the limiting frames, positioning cross beams are rotationally arranged at the bottom ends of the first bolts, and supports are fixedly arranged at the bottom ends of the positioning cross beams. The light steel keel can be inserted into the gap between the positioning cross beam and the transverse plate, the light steel keel is pre-positioned, a worker adjusts the direction of the connected light steel keel and then tightens and positions the light steel keel, the whole assembling operation is convenient and fast, and the hooking operation of the light steel keel can be completed by a single person.

The utility model discloses a dry wall nail with a keel structure, which comprises a stud part, one end of the stud part is provided with a self-tapping head, the other end of the stud part is provided with a rotating head, a polished rod part is connected between the stud part and the rotating head in series, and a plurality of reinforcing rib plates extending along the axial direction are distributed on the upper circumference of the polished rod part. The first spiral groove is spirally cut to pass through all the reinforcing rib plates, a plurality of teeth which are adjacently arranged at intervals are formed on each reinforcing rib plate through the first spiral groove, a second spiral groove is formed in the thread wall of the stud part, and the second spiral groove and the first spiral groove are formed in the same extension track; the included angles between every two adjacent reinforcing rib plates are equal. The dry wall nail has the advantages of being convenient to screw, high in structural strength, complete in overall function and high in practicability.

The utility model discloses an assembly type suspended ceiling laminated cross fastener which comprises a main keel and an auxiliary keel, and the main keel and the auxiliary keel are connected through a cross fastener. The cross fastener is composed of an upper connecting structure and a lower connecting structure, the upper connecting structure is fixedly connected with the lower connecting structure, the upper connecting structure is matched with the opening of the main keel in a clamping mode, and the lower connecting structure is matched with the opening of the auxiliary keel in a clamping mode. The connecting structure has the beneficial effects that the upper buckle plate can be directly arranged in the main keel, and then the lower buckle plate is moved into the cross connecting position along the end part of the auxiliary keel, so that the cross connection of the main keel and the auxiliary keel can be completed, and the mounting operation is convenient and fast; due to the fact that the lower buckle plate can slide in the auxiliary keel in the axial direction, and meanwhile the upper buckle plate can move in the main keel in the axial direction, the cross position of the main keel and the auxiliary keel is relatively adjustable, stress can be conveniently eliminated when installation deviation occurs in the light steel keel construction process, and the structural stability of the keel is improved.