Light steel keel fast butt joint device

Abstract

This utility model relates to the field of light steel keel, and more particularly to a quick-connect device for light steel keel, comprising a device housing and keel bodies. Two keel bodies are located at both ends of the device housing. Connecting seats are fixedly connected to both sides of the device housing, and positioning seats are fixedly connected to the inner side of the device housing. A positioning mechanism is movably connected to the top of the positioning seat. The positioning mechanism is used for connecting the device housing and the keel bodies. Clamping blocks are movably connected to both sides of the positioning seat, and an adjusting component is threaded to the bottom of the clamping block. When the adjusting component rotates, it causes the two clamping blocks to shift relative to each other. The positioning mechanism includes a positioning block, and connecting parts are provided on both sides of the positioning block. The positioning block is movably connected to the positioning seat through the connecting parts. This utility model pre-positions the two keel bodies by the positioning blocks on the inner wall of the device housing, and then uses a knob in conjunction with a transmission rod and a first lead screw to clamp the two keel bodies with the two clamping blocks.

Description

Technical Field

[0001] This utility model relates to the field of light steel keel, and in particular to a quick-connect device for light steel keel. Background Technology

[0002] A keel frame is a building material used to support shapes and fix structures. Light steel keel is a commonly used component in keel frames. Multiple light steel keels can be spliced ​​together to form the required keel frame.

[0003] In related technologies, a type of light steel keel with a U-shaped longitudinal section is commonly used. When these light steel keels are spliced ​​together to form a light steel keel frame, one end of the light steel keel is usually inserted into the other end of the light steel keel and then fixed with bolts.

[0004] However, when splicing existing light steel keels, the bolts are exposed and prone to corrosion and rust because the two sets of light steel keels are fixed by bolts. Furthermore, after the two sets of light steel keels are spliced, it is found that the two sets of light steel keels are misaligned, which makes subsequent disassembly inconvenient. Utility Model Content

[0005] To overcome the problems of existing light steel keel systems where the bolts used to fix the two sets of light steel keels are exposed and prone to corrosion and rust during splicing, and where the two sets of light steel keels are found to have staggered displacement after splicing, making subsequent disassembly inconvenient.

[0006] The technical solution of this utility model is as follows: a quick docking device for light steel keel, comprising a device shell and keel bodies, with two keel bodies located at both ends of the device shell. Connecting seats are fixedly connected to both sides of the device shell, and positioning seats are fixedly connected to the inner side of the device shell. A positioning mechanism is movably connected to the top of the positioning seat, which is used for connecting the device shell and the keel bodies. Clamping blocks are movably connected to both sides of the positioning seat, and an adjusting component is threadedly connected to the bottom end of the clamping blocks. When the adjusting component rotates, it causes the two clamping blocks to shift relative to each other. The positioning mechanism includes a positioning block, with connecting parts on both sides. The positioning block is movably connected to the positioning seat through the connecting parts. When the keel body is inserted into the inner wall of the device shell, the top of the positioning block fits against the inner wall of the keel body. The adjusting component includes a knob, with a first lead screw rotatably connected to the top of the knob. The two ends of the first lead screw extend to the outer side of the clamping blocks and are rotatably connected to the device shell. When the knob drives the first lead screw to rotate, the two clamping blocks shift relative to each other outside the first lead screw.

[0007] Preferably, the two keel bodies are pre-positioned by the positioning block on the inner wall of the device housing, and then the two clamping blocks clamp the two keel bodies by means of the knob, transmission rod and first lead screw.

[0008] Preferably, bolt holes are provided at both ends of the connector, and the connector can be connected to different ground and wall surfaces by bolts.

[0009] Preferably, the inner wall of the device housing is provided with a connecting groove, which is a through groove. One end of the keel body is inserted into the inner side of the connecting groove, and the connecting groove is used for connection between the device housing and the keel body.

[0010] Preferably, the clamping block is provided with three protrusions, and a connecting rod is provided at the connection of the three protrusions. The three protrusions can respectively fit against the junction of the two keel bodies and the outer side of the two keel bodies.

[0011] Preferably, a transmission rod is provided at the top of the knob, and a bevel gear is provided at the top of the transmission rod. The transmission rod is rotatably connected to the first lead screw through the bevel gear. When the knob drives the transmission rod to rotate, the transmission rod, in conjunction with the bevel gear, drives the first lead screw to rotate.

[0012] Preferably, the first lead screw is a double-threaded lead screw with symmetrical threads at both ends, and the first lead screw is threadedly connected to the two clamping blocks.

[0013] Preferably, the connector includes a connecting spring, with both ends of the connecting spring extending to one end of the positioning block and the positioning seat, respectively, and the positioning block being movably connected to the positioning seat via the connecting spring.

[0014] The beneficial effects of this utility model are:

[0015] 1. This light steel keel quick-connection device, by rotating the knob, the knob cooperates with the transmission rod and the first lead screw, so that the two clamping blocks clamp the two keel bodies, which facilitates the device to quickly splice the two sets of keel bodies. The clamping blocks are provided with three protrusions, which can respectively fit the intersection of the two keel bodies and the outer side of the two keel bodies to improve the stability of the device connection.

[0016] 2. This light steel keel quick-connect device, when the two keel bodies are inserted into the inner side of the device shell, pre-positions the two keel bodies by the positioning block on the inner wall of the device shell. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic representation of the overall structure of the quick-connect device for light steel keel of this utility model.

[0018] Figure 2 The diagram shown is a schematic representation of the outer casing structure of the quick-connect device for light steel keel of this utility model. Figure 1 ;

[0019] Figure 3 The diagram shown is a schematic representation of the outer casing structure of the quick-connect device for light steel keel of this utility model. Figure 2 ;

[0020] Figure 4 The diagram shown is a schematic diagram of the positioning block structure of the quick docking device for light steel keel of this utility model;

[0021] Figure 5 The diagram shown is a schematic of the knob structure of the quick-connect device for light steel keel of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Device housing; 2. Connecting seat; 3. Keel body; 4. Clamping block; 5. Positioning seat; 6. Positioning block; 7. Connecting spring; 8. Knob; 9. Transmission rod; 10. First lead screw; 11. Bevel gear. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Light steel keel, a new type of building material, has been discovered and is now widely used in hotels, airport terminals, bus stations, train stations, amusement parks, shopping malls, factories, office buildings, renovation of old buildings, interior decoration, ceilings, and other places as China's modernization progresses.

[0025] Light steel keel is classified into ceiling keel and partition keel according to its use, and into V-shaped, C-shaped, T-shaped, L-shaped and U-shaped keel according to its cross-sectional shape;

[0026] The marking order for light steel keel is: product name, code, width and height of cross-section, steel plate thickness and standard number. For example, a ceiling keel with a cross-section of "C" shape, a width of 50mm, a height of 15mm, and a steel plate thickness of 1.5mm is marked as: Light steel keel for building DC50×15×1.5 GB11981.

[0027] The appearance quality of the light steel keel should be flat, with clear edges and corners. The cut should not have burrs or deformation that affect its use. The galvanized layer should not have defects such as peeling, nodules, or flaking. When inspecting the appearance quality, visual inspection should be carried out under bright light conditions at a distance of 0.5m from the product.

[0028] The surface of the light steel keel should be galvanized for rust prevention, and the double-sided galvanizing amount should be no less than 120g / m² for superior grade products. m;

[0029] Painted steel keel: Painted steel keel is made of fire-resistant galvanized steel sheet, making it durable. It adopts an economical placement structure and a special connection method, allowing for easy assembly and disassembly, saving labor time and simplifying construction. The keel surface is made of galvanized steel sheet with a baked enamel finish.

[0030] The difference between light steel keel and painted keel is that ordinary light steel keel does not have a coating treatment, only a coating (galvanization), while painted keel has a painted surface, usually in black and white, and a few are painted in other colors according to design requirements. This is mainly because painted keel is mostly used in exposed keel, and the paint is to ensure that the exposed parts do not rust and do not affect the appearance.

[0031] Painted keel has a good overall flat surface effect, simple lines, and a beautiful and elegant appearance. Painted keel is safe, sturdy, and beautiful, and is suitable for installation with various mineral wool ceilings, aluminum square ceilings, calcium silicate boards, etc.

[0032] Painted keel has the functions of being lightweight, high strength, waterproof, fireproof, shockproof, soundproof, and sound-absorbing. It also has the advantages of short construction period and simple construction. It is a new type of ceiling decoration material and is widely used in shopping malls, hospitals, banks, hotels, factories, airport terminals, etc.

[0033] The installation of the light steel keel involves using a level to mark horizontal points at each corner of the wall (column) in the room (and several points in the middle if the wall is long), and then marking a level line (generally 500mm from the ground). Measure from this level line to the designed ceiling height plus 12mm (the thickness of one layer of white slab board), and use a chalk line to mark the level line along the wall (column). This level line marks the bottom edge of the secondary keel for the ceiling. Simultaneously, according to the ceiling plan, mark the positions of the main keels on the concrete ceiling slab. The main keels should extend from the center of the ceiling outwards, with a maximum spacing of 1000mm, and the fixing points of the hangers should be marked. The fixing point spacing of the hangers should be 900-1000mm. If the fixing points for beams and pipes exceed the design and specification requirements, additional fixing points for the hangers should be added.

[0034] Fixed suspension rods: Expansion bolts are used to fix the suspension rods. For non-accessible ceilings, if the suspension rod length is less than 1000mm, φ6 rods can be used; if it is greater than 1000mm, φ8 rods should be used, and reverse supports should also be installed. Cold-drawn steel bars and coiled steel bars can be used for the suspension rods, but if coiled steel bars are used, they should be straightened mechanically. For accessible ceilings, if the suspension rod length is less than 1000mm, φ8 rods can be used; if it is greater than 1000mm, φ10 rods should be used, and reverse supports should also be installed.

[0035] One end of the hanger rod is welded to an L30×30×3 angle bracket (the hole diameter of the angle bracket should be determined according to the diameter of the hanger rod and the expansion bolt). The other end can be threaded with a threaded rod larger than 100mm using a tap, or a ready-made threaded rod can be purchased and welded. The finished hanger rod should be rust-proofed. The hanger rod is fixed to the floor slab with expansion bolts and holes are drilled with an impact hammer.

[0036] Suspend structural members on the beam:

[0037] (1) The hanging rods should be straight and have sufficient load-bearing capacity; when the pre-embedded rods need to be extended, they must be lapped and welded firmly, and the welds should be uniform and full;

[0038] (2) The distance between the hanger and the end of the main keel shall not exceed 300mm; otherwise, an additional hanger shall be added.

[0039] (3) Additional hanging rods should be installed for ceiling lights, air vents and access panels;

[0040] Installation notes for V-shaped suspended keel:

[0041] 1. When used for suspended ceilings, the long side of the gypsum board must be laid perpendicular or parallel to the secondary keel. The distance between the fasteners (self-tapping screws) and the gypsum board should be about 10-16mm. When tightening, the gypsum board must be firmly fixed to the frame.

[0042] 2. When fixing the boards, fix them from the middle of each long and short side. After the nails are in place, the nail heads should be slightly embedded in the board, but the board surface should not be damaged.

[0043] 3. When gypsum boards are joined together, they must be tightly fitted together. Horizontal bracing must be added at the joints. Gypsum boards should be installed in a stress-free state and should not be forcibly positioned. It should be ensured that the bottom surfaces of the secondary keels are on the same plane, and the joints of the keels should be staggered.

[0044] Painted keel is a thin-walled profile with a reasonable "T"-shaped cross-section structure, made from cold-rolled continuous hot-dip galvanized steel strip and painted strip through cold bending process and composite rolling.

[0045] Installation of edge keel: The edge keel should be installed according to the design requirements by marking the lines. The L-shaped galvanized light steel strips should be fixed to the pre-embedded wooden blocks with self-tapping screws along the horizontal keel line on the wall (column). If it is a concrete wall (column), it can be fixed with nails. The spacing of the nails should not be greater than the spacing of the secondary keel of the ceiling.

[0046] Installation of main keel: (1) The main keel should be suspended on the hanger. The spacing between the main keels is 900-1000mm. The main keel is divided into light steel keel and T-shaped keel. The light steel keel can be UC50 medium keel and UC38 small keel. The main keel should be installed parallel to the length of the room and should be arched. The arch height is 1 / 200 to 1 / 300 of the room span. The cantilever section of the main keel should not be greater than 300mm. Otherwise, hanger should be added. The main keel should be spliced ​​by butt joint. The butt joints of adjacent keels should be staggered. After the main keel is hung, it should be basically leveled.

[0047] (2) For suspended ceilings with a span of more than 15m, a large keel should be added every 15m on the main keel and welded firmly perpendicular to the main keel;

[0048] (3) If there is a large decorative ceiling, the decorative part should be welded into a frame using angle steel or flat steel, and should be firmly connected to the floor slab.

[0049] Secondary keel installation: Secondary keels are divided into two types: exposed keels and concealed keels. Concealed keel ceiling: When installing the ceiling panels, the secondary keel is enclosed within the ceiling, and is not visible on the ceiling surface. Exposed keel ceiling: When installing the ceiling panels, the secondary keel is exposed under the panels and can be seen on the ceiling surface. Secondary keels should be installed tightly against the main keel. The spacing between secondary keels is 300-600mm. Secondary keels include T-shaped painted keels, T-shaped aluminum alloy keels, and special keels provided by various strip panel manufacturers. When fixing the secondary keel to the main keel using T-shaped galvanized iron sheet connectors, both ends of the secondary keel should rest on the horizontal flange of the L-shaped edge keel. Strip-shaped buckles have dedicated internal corner trims as edge keels. In related technologies, a type of light steel keel with a U-shaped longitudinal section is commonly used. When these light steel keels are spliced ​​together to form a light steel keel frame, one end of the light steel keel is usually inserted directly into the other end of the light steel keel and then fixed with bolts.

[0050] However, when splicing existing light steel keels, the bolts used to fix the two sets of light steel keels are exposed and prone to corrosion and rust. Furthermore, after the two sets of light steel keels are spliced, it was found that the two sets of light steel keels have staggered displacement, which is inconvenient for subsequent disassembly.

[0051] Please see Figures 1-5This utility model provides an embodiment of a quick-connect device for light steel keel, comprising a device housing 1 and keel bodies 3. Two keel bodies 3 are located at both ends of the device housing 1. Connecting seats 2 are fixedly connected to both sides of the device housing 1. Positioning seats 5 are fixedly connected to the inner side of the device housing 1. A positioning mechanism is movably connected to the top of the positioning seat 5. The positioning mechanism is used for connecting the device housing 1 and the keel bodies 3. Clamping blocks 4 are movably connected to both sides of the positioning seat 5. An adjusting component is threadedly connected to the bottom end of the clamping block 4. When the adjusting component rotates, it causes the two clamping blocks 4 to shift relative to each other. The positioning mechanism includes a positioning block 6. Connecting parts are provided on both sides of the positioning block 6. The positioning block 6 is movably connected to the positioning seat 5 through the connecting parts. When the keel body 3 is inserted into the inner wall of the device housing 1, the top of the positioning block 6 fits against the inner wall of the keel body 3. The adjusting component includes a knob 8. A first lead screw 10 is rotatably connected to the top of the knob 8. The two ends of the first lead screw 10 extend to the outside of the clamping block 4 and are rotatably connected to the outer shell 1 of the device. When the knob 8 drives the first lead screw 10 to rotate, the two clamping blocks 4 are displaced relative to each other on the outside of the first lead screw 10. Then, when it is necessary to splice the keel body 3, when the two keel bodies 3 are inserted into the inner side of the outer shell 1 of the device, the two keel bodies 3 are pre-positioned by the positioning block 6 on the inner wall of the outer shell 1 of the device. Then, by rotating the knob 8, the knob 8, in conjunction with the transmission rod 9, drives the first lead screw 10 to rotate. The first lead screw 10 is threadedly connected to the two clamping blocks 4. Thus, under the rotation of the first lead screw 10, the two clamping blocks 4 clamp the two keel bodies 3, which facilitates the device to quickly splice the two sets of keel bodies 3. The clamping block 4 is provided with three protrusions, and a connecting rod is provided at the connection of the three protrusions. The three protrusions can respectively fit the intersection of the two keel bodies 3 and the outside of the two keel bodies 3, improving the stability of the device connection.

[0052] Please see Figures 2-3 In this embodiment, bolt holes are provided at both ends of the connecting seat 2. The connecting seat 2 can be connected to different ground and wall surfaces by bolts. A connecting groove is provided on the inner wall of the device housing 1. The connecting groove is a through groove. One end of the keel body 3 is inserted into the inner side of the connecting groove. The connecting groove is used for connection between the device housing 1 and the keel body 3.

[0053] Please see Figures 4-5In this embodiment, the clamping block 4 is provided with three protrusions, and a connecting rod is provided at the connection of the three protrusions. The three protrusions can respectively fit against the junction of the two keel bodies 3 and the outer side of the two keel bodies 3. The top of the knob 8 is provided with a transmission rod 9, and the top of the transmission rod 9 is provided with a bevel gear 11. The transmission rod 9 is rotatably connected to the first lead screw 10 through the bevel gear 11. When the knob 8 drives the transmission rod 9 to rotate, the transmission rod 9 cooperates with the bevel gear 11 to drive the first lead screw 10 to rotate. The first lead screw 10 is a double-threaded lead screw, and the threads at both ends of the first lead screw 10 are symmetrical. The first lead screw 10 is threadedly connected to the two clamping blocks 4. The connecting component includes a connecting spring 7. The two ends of the connecting spring 7 extend to one end of the positioning block 6 and the positioning seat 5, respectively. The positioning block 6 is movably connected to the positioning seat 5 through the connecting spring 7.

[0054] When working, if it is necessary to splice the keel body 3, insert the two keel bodies 3 into the inner side of the device housing 1. The positioning block 6 on the inner wall of the device housing 1 will pre-position the two keel bodies 3. Then, by rotating the knob 8, the knob 8, in conjunction with the transmission rod 9, will drive the first lead screw 10 to rotate. The first lead screw 10 is threadedly connected to the two clamping blocks 4. Thus, under the rotation of the first lead screw 10, the two clamping blocks 4 will clamp the two keel bodies 3, which will facilitate the device to quickly splice the two sets of keel bodies 3. The clamping block 4 is provided with three protrusions, and a connecting rod is provided at the connection of the three protrusions. The three protrusions can respectively fit the intersection of the two keel bodies 3 and the outer side of the two keel bodies 3, which will improve the stability of the device connection.

[0055] Through the above steps, the two keel bodies 3 are pre-positioned by the positioning block 6 on the inner wall of the device housing 1. Then, the knob 8, in conjunction with the transmission rod 9 and the first lead screw 10, causes the two clamping blocks 4 to clamp the two keel bodies 3. This solves the problem that when splicing existing light steel keels, the bolts are exposed and prone to corrosion and rust because the two sets of light steel keels are fixed by bolts. Furthermore, after the two sets of light steel keels are spliced, it is found that the splicing of the two sets of light steel keels results in staggered displacement, which is inconvenient for subsequent disassembly.

Claims

1. A light steel keel quick butt joint device, comprising a device shell (1) and a keel body (3), characterized in that: It also includes two keel bodies (3) located at both ends of the device shell (1), with connecting seats (2) fixedly connected to both sides of the device shell (1), and positioning seats (5) fixedly connected to the inner side of the device shell (1). A positioning mechanism is movably connected to the top of the positioning seat (5), which is used for connecting the device shell (1) and the keel body (3). Clamping blocks (4) are movably connected to both sides of the positioning seat (5), and an adjustment component is threaded to the bottom of the clamping block (4). When the adjustment component rotates, the adjustment component causes the two clamping blocks (4) to move relative to each other. The positioning mechanism includes a positioning block (6), and connecting parts are provided on both sides of the positioning block (6). The positioning block (6) is movably connected to the positioning seat (5) through the connecting parts. When the keel body (3) is inserted into the inner wall of the device housing (1), the top of the positioning block (6) is in contact with the inner wall of the keel body (3). The adjustment assembly includes a knob (8), the top of which is rotatably connected to a first lead screw (10). The two ends of the first lead screw (10) extend to the outside of the clamping blocks (4) and are rotatably connected to the outer casing (1) of the device. When the knob (8) drives the first lead screw (10) to rotate, the two clamping blocks (4) are displaced relative to each other on the outside of the first lead screw (10).

2. The light gauge steel stud rapid butt device according to claim 1, wherein: Both ends of the connector (2) are provided with bolt holes, and the connector (2) can be connected to different ground and wall surfaces by bolts.

3. The light gauge steel stud rapid butt device according to claim 1, wherein: The inner wall of the device housing (1) is provided with a connecting groove. The connecting groove is a through groove. One end of the keel body (3) is inserted into the inner side of the connecting groove. The connecting groove is used for connection between the device housing (1) and the keel body (3).

4. The light gauge steel stud rapid butt device according to claim 1, wherein: The clamping block (4) is provided with three protrusions, and a connecting rod is provided at the connection of the three protrusions. The three protrusions can respectively fit the junction of the two keel bodies (3) and the outer side of the two keel bodies (3).

5. The light gauge steel stud rapid butt device according to claim 1, wherein: A transmission rod (9) is provided at the top of the knob (8), and a bevel gear (11) is provided at the top of the transmission rod (9). The transmission rod (9) is rotatably connected to the first lead screw (10) through the bevel gear (11). When the knob (8) drives the transmission rod (9) to rotate, the transmission rod (9) cooperates with the bevel gear (11) to drive the first lead screw (10) to rotate.

6. The light gauge steel stud rapid butt device according to claim 1, wherein: The first lead screw (10) is a double-threaded lead screw. The threads at both ends of the first lead screw (10) are symmetrical. The first lead screw (10) is threadedly connected to the two clamping blocks (4).

7. The light gauge steel stud rapid butt device according to claim 1, wherein: The connector includes a connecting spring (7), with both ends of the connecting spring (7) extending to one end of the positioning block (6) and the positioning seat (5), respectively. The positioning block (6) is movably connected to the positioning seat (5) through the connecting spring (7).

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