Double-layer glass partition structure

Abstract

The utility model discloses a double-layer glass partition structure which comprises a section steel keel, a section steel pressing plate, U-shaped section steel, a screw stud and glass, the section steel keel is used for a middle column of the double-layer glass partition structure or used for a peripheral frame track and the middle column, and the U-shaped section steel is arranged in a keel locking cavity of the section steel keel arranged between the glass. The profile steel pressing plates located on the outer sides of the corresponding glass are arranged on the two sides of the profile steel keel respectively, the screw studs are sequentially in threaded connection with the profile steel pressing plates, penetrate through the end sides of the glass and are in threaded connection with the U-shaped profile steel from the outer side of the glass to the inner side of the glass, and the screw studs and the U-shaped profile steel form a screw type tensioning structure to lock the profile steel pressing plates and the profile steel keel. According to the double-layer glass partition structure, the width of a production material is shortened, so that the installation time is short, the occupied space is small, and the production cost is saved; and the double-glass fireproof tempered glass with different thicknesses, high strength and good fireproof performance is used, so that the flame-retardant effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of building fire prevention, in particular to the technical field of fireproof glass partition walls, and specifically to a double-layer glass partition structure that saves materials and occupies a small floor space. Background Art

[0002] As a building component with a certain fire resistance limit, the all-steel fireproof glass partition is used to control and prevent the spread of fire along the vertical or horizontal direction to other parts of the same building. At present, the materials of the all-steel fireproof glass partition are diverse and wide, and the structural combination can only be installed on the construction site. The installation time is long, the installation space required is large, the installation risk for operators is high, the labor and material costs are high, and it greatly occupies space, which is not conducive to the optimization of the space utilization of the building. Content of the Utility Model

[0003] The purpose of the utility model is to provide a double-layer glass partition structure that saves materials and occupies a small floor space in view of the problems existing in the prior art.

[0004] The purpose of the utility model is solved by the following technical solutions:

[0005] A double-layer glass partition structure, characterized in that: the double-layer glass partition structure includes a profiled steel keel, a profiled steel pressing plate, a U-shaped profiled steel, screw studs, and glass. The profiled steel keel is used for the middle column of the double-layer glass partition structure, or the surrounding frame rails and the middle column. A U-shaped profiled steel is arranged in the keel locking cavity of the profiled steel keel between the glasses. On both sides of the profiled steel keel, profiled steel pressing plates located outside the corresponding glasses are respectively arranged. The screw studs are threadedly connected to the profiled steel pressing plates in sequence from the outside of the glass inward, pass through the end sides of the glasses, and are threadedly connected to the U-shaped profiled steel. The screw studs and the U-shaped profiled steel form a screw-type tensioning structure to lock the profiled steel pressing plates and the profiled steel keel.

[0006] The profiled steel keel is formed by hot melt welding two steel profiles with the same structure and placed back to back symmetrically. Any one of the steel profiles is composed of a positive U-shaped groove and two inverted U-shaped grooves arranged side by side. The two inverted U-shaped grooves are respectively located on both sides of the positive U-shaped groove and share adjacent surfaces. The height of the outer side surface of the inverted U-shaped groove is less than the height of the adjacent surface shared by the inverted U-shaped groove and the positive U-shaped groove, so that the corresponding inverted U-shaped grooves of the two steel profiles on the same side of the profiled steel keel form a keel locking cavity with an open middle.

[0007] The free edge of the outer side surface of the inverted U-shaped groove has a folding surface facing the positive U-shaped groove. The folding surface integrally formed with the outer side surface of the inverted U-shaped groove can seal part of the opening of the corresponding inverted U-shaped groove. The corresponding folding surfaces of the two steel profiles are parallel to each other and can support and position the U-shaped profiled steel.

[0008] Threads capable of being threadedly connected with screw studs are arranged on the outer wall of the folded surface.

[0009] A profiled steel outer cover is sleeved outside the profiled steel pressing plate. Sharp corners are formed respectively between the cover plate surface and two adjacent surfaces of the profiled steel outer cover, and the R angle is less than 0.5°.

[0010] Graphite fireproof expansion rubber strips are arranged on the peripheral wall of the glass and on the inner and outer sides adjacent to the peripheral wall respectively.

[0011] The double-glass partition structure further includes a profiled steel double-glass cover plate in a cap shape. The cap of the profiled steel double-glass cover plate is used to cover the inner cavity structure of the double-glass partition structure, and the brim of the profiled steel double-glass cover plate is located at the end side of the glass; threads capable of being threadedly connected with screw studs are arranged on the brim of the profiled steel double-glass cover plate.

[0012] Graphite fireproof expansion rubber strips and / or foam cotton strips are arranged between the outer side surface of the profiled steel double-glass cover plate and the profiled steel keel.

[0013] When the surrounding frame rails and middle columns of the double-glass partition structure are all made of profiled steel keels, adjacent profiled steel keels are fixedly connected by bolts with L-shaped keel connectors; the keel connectors are composed of two flat plates with the same structure, with U-shaped grooves and bolt holes. The flat plates are fixed by bolts at the bottom of the positive U-shaped grooves corresponding to the profiled steel keels; the parallel flat plates of different keel connectors in the two positive U-shaped grooves within the same profiled steel keel can be connected by the same bolt; the keel connectors are provided with reinforcing ribs.

[0014] When the middle column of the double - layer glass partition structure uses a steel keel and the surrounding frame rails of the double - layer glass partition structure use steel rails, or a combination of steel rails and steel keels, L - shaped keel connectors are used to fix and connect adjacent steel keels with bolts, L - shaped keel - rail connectors are used to fix and connect adjacent steel rails and steel keels with bolts, and L - shaped rail connectors are used to fix and connect adjacent steel rails with bolts; the keel connector is composed of two flat plates with the same structure, U - shaped grooves and bolt holes. The flat plates are fixed on the bottom of the positive U - shaped groove of the corresponding steel keel with bolts; the parallel flat plates of different keel connectors in the two positive U - shaped grooves within the same steel keel can be connected with the same bolt; the keel connector is provided with reinforcing ribs; the keel - rail connector is composed of a flat plate with a U - shaped groove and bolt holes and a convex groove plate with a U - shaped groove and bolt holes. The flat plate is fixed on the bottom of the positive U - shaped groove of the corresponding steel keel with bolts, and the convex groove plate covers the protruding part in the middle of the corresponding steel rail and is fixed and connected with bolts. The keel - rail connector is provided with reinforcing ribs; the rail connector is composed of two convex groove plates with the same structure, U - shaped grooves and bolt holes. The convex groove plates cover the protruding parts in the middle of the corresponding steel rails and are fixed and connected with bolts. The rail connector is provided with reinforcing ribs.

[0015] The steel keel, steel pressing plate, steel outer cover, U - shaped steel, steel double - glass cover plate, and steel rail are respectively formed by precision continuous cold bending of single - layer steel plates in one piece.

[0016] The utility model has the following advantages compared with the prior art:

[0017] The double - layer glass partition structure provided by the utility model shortens the size of the width of the production materials, resulting in a short installation time, a small occupied space, and saving production costs; double - glass fire - resistant tempered glass with different thicknesses, high strength, and good fire - resistance is used. The double - glass fire - resistant tempered glass has successfully passed a 180 - minute fire - resistance test (the fire - resistance test effects are different for different materials of glass), and has good flame - retardant effects.

[0018] The keel adopted by the utility model only uses two steel profiles with the same structure placed back - to - back symmetrically and then welded and bonded by hot melting. The four - point force is uniform, the bonding strength is high, and it is not easy to open when subjected to lateral force; the keel is fixed by a screw - type tensioning structure composed of a keel locking part and screw studs, and the structure is stable and will not damage the glass; it can be installed as a whole first and then installed on the wall; the screw - type tensioning structure will not damage the spraying surface of the keel, so it is not easy to rust; during the production and installation process, the fixation of the screw - type tensioning structure only requires the operator to rotate the screw studs through tools to ensure that the stress points of each screw stud are the same. Description of the Drawings

[0019] Attached Figure 1 is a perspective view of the double - layer glass partition structure provided in the first embodiment of the present utility model;

[0020] Attached Figure 2 is a perspective view of the double - layer glass partition structure provided in the first embodiment of the present utility model after removing the profiled steel double - glass cover plate;

[0021] Attached Figure 3 is a front view of the double - layer glass partition structure provided in the first embodiment of the present utility model;

[0022] Attached Figure 4 is a top view of the double - layer glass partition structure provided in the first embodiment of the present utility model;

[0023] Attached Figure 5 is a perspective view of the connection structure of the profiled steel keel and the profiled steel track provided in the first embodiment of the present utility model;

[0024] Attached Figure 6 is the attached Figure 5 top view of the present utility model;

[0025] Attached Figure 7 is a perspective view of the double - layer glass partition structure provided in the second embodiment of the present utility model;

[0026] Attached Figure 8 is a perspective view of the double - layer glass partition structure provided in the second embodiment of the present utility model after removing the partial profiled steel double - glass cover plate;

[0027] Attached Figure 9 is a front view of the double - layer glass partition structure provided in the second embodiment of the present utility model;

[0028] Attached Figure 10 is a top view of the double - layer glass partition structure provided in the second embodiment of the present utility model;

[0029] Attached Figure 11 is a perspective view of the connection structure of the profiled steel keel and the profiled steel track provided in the second embodiment of the present utility model;

[0030] Attached Figure 12 is the attached Figure 11 top view of the present utility model;

[0031] Attached Figure 13 is a schematic structural view of the keel connector provided by the present utility model;

[0032] Attached Figure 14 is a schematic structural view of the keel - track connector provided by the present utility model

[0033] Attached Figure 15Structural schematic diagram of the profiled steel keel provided by the present utility model.

[0034] Wherein: 1 - profiled steel keel; 11 - steel profile; 12 - keel locking cavity; 13 - folding surface; 2 - profiled steel pressing plate; 3 - profiled steel outer cover; 4 - U-shaped profiled steel; 5 - screw stud; 6 - graphite fireproof expansion rubber strip; 7 - glass; 81 - keel connecting piece; 82 - keel track connecting piece; 9 - profiled steel double-glass cover plate; 10 - profiled steel track. Specific implementation manner

[0035] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0036] As Figures 1 - 15 shown: A double-glass partition structure, the double-glass partition structure includes a profiled steel keel 1, a profiled steel pressing plate 2, a U-shaped profiled steel 4, a screw stud 5, and a glass 7. The profiled steel keel 1 is used for the middle column of the double-glass partition structure, or the surrounding frame track and the middle column. A U-shaped profiled steel 4 is arranged in the keel locking cavity 12 of the profiled steel keel 1 between the glasses 7. Profiled steel pressing plates 2 are respectively arranged on both sides of the profiled steel keel 1 on the outer sides of the corresponding glasses 7. The screw stud 5 is threadedly connected to the profiled steel pressing plate 2 in sequence from the outer side of the glass 7 inward, passes through the end side of the glass 7, and is threadedly connected to the U-shaped profiled steel 4. The screw stud 5 and the U-shaped profiled steel 4 form a screw-type tensioning structure to lock the profiled steel pressing plate 2 and the profiled steel keel 1; Graphite fireproof expansion rubber strips 6 are respectively arranged on the peripheral wall of the glass 7 and the inner and outer sides adjacent to the peripheral wall.

[0037] Furthermore, a profiled steel outer cover 3 is sleeved outside the profiled steel pressing plate 2, and sharp corners are formed respectively between the cover plate surface and two adjacent surfaces of the profiled steel outer cover 3;

[0038] The double-glass partition structure further includes a profiled steel double-glass cover plate 9 in a cap shape. The cap of the profiled steel double-glass cover plate 9 is used to cover the inner cavity structure of the double-glass partition structure. The brim of the profiled steel double-glass cover plate 9 is located at the end side of the glass 7. Threads capable of being threadedly connected to the screw stud 5 are arranged on the brim of the profiled steel double-glass cover plate 9; A graphite fireproof expansion rubber strip 6 and / or a foam cotton strip are arranged between the profiled steel double-glass cover plate 9 and the outer side surface of the profiled steel keel 1.

[0039] As Figure 15As shown in the figure, the profiled steel keel 1 is formed by welding two steel profiles 11 with the same structure and placed back-to-back symmetrically by hot melt welding. Any one of the steel profiles 11 is composed of a positive U-shaped groove and two inverted U-shaped grooves arranged side by side. The two inverted U-shaped grooves are respectively located on both sides of the positive U-shaped groove and share adjacent faces. The height of the outer side surface of the inverted U-shaped groove is less than the height of the adjacent face shared by the inverted U-shaped groove and the positive U-shaped groove, so that the corresponding inverted U-shaped grooves of the two steel profiles 11 on the same side of the profiled steel keel 1 form a keel locking cavity 12 with an opening in the middle; the free edge of the outer side surface of the inverted U-shaped groove has a folding surface 13 facing the positive U-shaped groove. The folding surface 13 integrally formed with the outer side surface of the inverted U-shaped groove can seal part of the opening of the corresponding inverted U-shaped groove. The corresponding folding surfaces 13 of the two steel profiles 11 are parallel to each other and can support and position the U-shaped profiled steel 4; the screw stud 5 is inserted into the keel locking cavity 12 between the two folding surfaces 13 to connect and fix the U-shaped profiled steel 4. At this time, the two folding surfaces 13 hold against the U-shaped profiled steel 4, and the two sides of the U-shaped profiled steel 4 of the U-shaped structure hold against the inner wall of the outer side surface of the keel locking cavity 12, forming a four-point balanced fixation for the glass; a further preferred option is that threads capable of being threadedly connected with the screw stud 5 are arranged on the outer wall of the folding surface 13.

[0040] When the middle column of the double-layer glass partition structure uses the profiled steel keel 1 and the surrounding frame rails of the double-layer glass partition structure use profiled steel rails 10, or a combination of profiled steel rails 10 and profiled steel keels 1, L-shaped keel connectors 81 are used to configure bolted fixed connections between adjacent profiled steel keels 1, L-shaped keel-rail connectors 82 are used to configure bolted fixed connections between adjacent profiled steel rails 10 and profiled steel keels 1, and L-shaped rail connectors are used to configure bolted fixed connections between adjacent profiled steel rails 10; the keel connector 81 is composed of two flat plates with the same structure and provided with U-shaped grooves and bolt holes. The flat plates are bolted to the bottom of the positive U-shaped groove of the corresponding profiled steel keel 1; the parallel flat plates of different keel connectors 81 in the two positive U-shaped grooves within the same profiled steel keel 1 can be connected by the same bolt; the keel connector 81 is provided with reinforcing ribs; the keel-rail connector 82 is composed of a flat plate with a U-shaped groove and bolt holes and a convex groove surface with a U-shaped groove and bolt holes. The flat plate is bolted to the bottom of the positive U-shaped groove of the corresponding profiled steel keel 1, and the convex groove surface covers the protruding part in the middle of the corresponding profiled steel rail 1 and is bolted and fixed together. The keel-rail connector 82 is provided with reinforcing ribs; the rail connector is composed of two convex groove surfaces with the same structure and provided with U-shaped grooves and bolt holes. The convex groove surfaces cover the protruding parts in the middle of the corresponding profiled steel rails 1 and are bolted and fixed together. The rail connector is provided with reinforcing ribs.

[0041] When the surrounding frame rails and middle columns of the double-layer glass partition structure are all made of steel keels 1, adjacent steel keels 1 are fixedly connected with bolts by using L-shaped keel connectors 81; the keel connectors 81 are composed of two flat plates with the same structure, with U-shaped grooves and bolt holes. The flat plates are fixed on the bottom of the positive U-shaped grooves of the corresponding steel keels 1 with bolts; the parallel flat plates of different keel connectors 81 in the two positive U-shaped grooves within the same steel keel 1 can be connected by the same bolt; the keel connectors 81 are provided with reinforcing ribs.

[0042] As Figures 1 - 6 The double-layer glass partition structure shown in Figures 13 - 15 includes a frame, glass 7, graphite fireproof expansion rubber strips 6 and foam cotton strips. The frame includes steel keels 1 with a wall thickness of 1.5 mm, steel pressing plates 2 with a wall thickness of 1.5 mm, steel outer covers 3, U-shaped steel 4 with a length of 40 mm, screw studs 5, steel double-glass covers 9 with a wall thickness of 1.2 mm, steel rails 10, embedded brackets, L-shaped keel connectors 81, L-shaped keel-rail connectors 82, and L-shaped rail connectors; the glass 7 includes two types: one is tempered composite fireproof glass with a thickness of 25 mm, and the other is ordinary tempered glass with a thickness of 6 mm.

[0043] The surrounding frame rails of the frame are composed of steel rails 10, steel pressing plates 2, steel outer covers 3, screw studs 5, steel double-glass covers 9, L-shaped rail connectors, and embedded brackets. The middle columns of the frame are composed of steel keels 1, steel pressing plates 2, steel outer covers 3, screw studs 5, steel double-glass covers 9, L-shaped keel connectors 81 or L-shaped keel-rail connectors 82. First, the steel rails 10 required for the floor rails and side rails are fixedly arranged. At the adjacent joints of the steel rails 10 of the floor rails and the steel rails 10 of the side rails, L-shaped rail connectors are used to lock and connect with self-drilling screws. At the adjacent joints of the steel rails 10 of the floor rails or the steel rails 10 of the side rails and the steel keels 1 of the middle columns, L-shaped keel-rail connectors 82 are used to lock and connect with self-drilling screws. At the adjacent joints of the steel keels 1 of each middle column, L-shaped keel connectors 81 are used to lock and connect with self-drilling screws to complete the positioning of the frame foundation of the double-layer glass partition structure.

[0044] Place U-shaped steel 4 in the keel locking cavity 12 of the profiled steel keel 1 respectively, and stick 2x10mm foam cotton strips on the sides of the profiled steel keel 1 respectively. Fix embedding brackets with appropriate widths on both sides of the bottom of the profiled steel track 10, cover the profiled steel double-glass cover plate 9 on the opening side of the profiled steel track 10, and cover the profiled steel double-glass cover plate 9 on the opening side of the positive U-shaped groove of the profiled steel keel 1 respectively. Stick 2x10mm, 2x15mm, and 2x20mm graphite fireproof expansion rubber strips 6 on the folded surface sides of the profiled steel double-glass cover plate 9 respectively; Place the 25mm thick toughened composite fireproof glass on the 2x15mm and 2x20mm graphite fireproof expansion rubber strips 6. The T-shaped graphite fireproof expansion rubber strips 6 filled on the profiled steel pressing plates 2 on the side of the profiled steel track 10 are respectively fitted to the corresponding 25mm thick toughened composite fireproof glass and the embedding brackets, and the T-shaped graphite fireproof expansion rubber strips 6 filled on the profiled steel pressing plates 2 on the side of the profiled steel keel 1 are respectively fitted to the corresponding 25mm thick toughened composite fireproof glass. Connect the profiled steel pressing plate 2 and the profiled steel track 10 with screw studs 5, and connect the profiled steel pressing plate 2 and the U-shaped steel 4 with screw studs 5. After completing the locking of the profiled steel pressing plate 2, buckle the profiled steel outer cover 3 outside the profiled steel pressing plate 2 to complete the installation of the 25mm thick toughened composite fireproof glass; The installation steps of the 6mm thick ordinary toughened glass on the other side are the same as those of the 25mm thick toughened composite fireproof glass. Specifically: Place the 6mm thick ordinary toughened glass on the 2x10mm and 2x15mm graphite fireproof expansion rubber strips 6. The T-shaped graphite fireproof expansion rubber strips 6 filled on the profiled steel pressing plates 2 on the side of the profiled steel track 10 are respectively fitted to the corresponding 6mm thick ordinary toughened glass and the embedding brackets, and the T-shaped graphite fireproof expansion rubber strips 6 filled on the profiled steel pressing plates 2 on the side of the profiled steel keel 1 are respectively fitted to the corresponding 6mm thick ordinary toughened glass. Connect the profiled steel pressing plate 2 and the profiled steel track 10 with screw studs 5, and connect the profiled steel pressing plate 2 and the U-shaped steel 4 with screw studs 5. After completing the locking of the profiled steel pressing plate 2, buckle the profiled steel outer cover 3 outside the profiled steel pressing plate 2 to complete the installation of the 6mm thick ordinary toughened glass.

[0045] As Figures 7 - 13 The double-glass partition structure shown in FIGS. 15 includes a frame, glass 7, graphite fireproof expansion rubber strip 6 and foam cotton strip. The frame includes a profiled steel keel 1 with a wall thickness of 1.5mm, a profiled steel pressing plate 2 with a wall thickness of 1.5mm, a profiled steel outer cover 3, a U-shaped steel 4 with a length of 40mm, screw studs 5, a profiled steel double-glass cover plate 9 with a wall thickness of 1.2mm, a profiled steel track 10, an embedding bracket, and an L-shaped keel connecting piece 81; The glass 7 includes two types: one is 25mm thick toughened composite fireproof glass and the other is 6mm ordinary toughened glass.

[0046] The four-sided frame rails of the frame are composed of a profiled steel keel 1, a profiled steel pressing plate 2, a profiled steel outer cover 3, screw studs 5, a profiled steel double-glass cover plate 9, an L-shaped keel connector 81, and an embedded bracket. The middle column of the frame is composed of a profiled steel keel 1, a profiled steel pressing plate 2, a profiled steel outer cover 3, screw studs 5, a profiled steel double-glass cover plate 9, and an L-shaped keel connector 81. First, fix and arrange the profiled steel keel 1 required for the ground rail and side rail. At the adjacent joints of the profiled steel keel 1 of the ground rail and the profiled steel keel 1 of the side rail, use an L-shaped keel connector 81 and configure self-drilling screws to lock and connect. Then, configure the profiled steel keel 1 required for the middle column. At the adjacent joints of each profiled steel keel 1, use an L-shaped keel connector 81 and configure self-drilling screws to lock and connect to complete the positioning of the frame foundation of the double-glass partition structure.

[0047] Place U-shaped profiled steel 4 in the keel locking cavity 12 of the profiled steel keel 1 respectively and stick 2x10mm foam cotton strips on the sides of the profiled steel keel 1 respectively. Fix embedded brackets with appropriate widths on both sides of the bottom of the profiled steel keel 1 serving as the ground rail or side rail, and cover the profiled steel double-glass cover plate 9 on the opening side of the positive U-shaped groove inside the profiled steel keel 1. Cover the profiled steel double-glass cover plate 9 on the opening sides of the two positive U-shaped grooves of the profiled steel keel 1 serving as the middle column respectively. Stick 2x10mm, 2x15mm, and 2x20mm graphite fireproof expansion rubber strips 6 on the folding sides of the profiled steel double-glass cover plate 9 respectively; place 25mm thick toughened composite fireproof glass on the 2x15mm and 2x20mm graphite fireproof expansion rubber strips 6. The T-shaped graphite fireproof expansion rubber strips 6 filled on the corresponding profiled steel pressing plates 2 of the profiled steel keel 1 serving as the ground rail or side rail are respectively attached to the corresponding 25mm thick toughened composite fireproof glass and the embedded bracket. The T-shaped graphite fireproof expansion rubber strips 6 filled on the corresponding profiled steel pressing plates 2 of the profiled steel keel 1 serving as the middle column are respectively attached to the corresponding 25mm thick toughened composite fireproof glass. Connect the profiled steel pressing plate 2 and the U-shaped profiled steel 4 with screw studs 5. After completing the locking of the profiled steel pressing plate 2, buckle the profiled steel outer cover 3 outside the profiled steel pressing plate 2 to complete the installation of the 25mm thick toughened composite fireproof glass; the installation steps of the 6mm thick ordinary toughened glass on the other side are the same as those of the 25mm thick toughened composite fireproof glass. Specifically: place the 6mm thick ordinary toughened glass on the 2x10mm and 2x15mm graphite fireproof expansion rubber strips 6. The T-shaped graphite fireproof expansion rubber strips 6 filled on the corresponding profiled steel pressing plates 2 of the profiled steel keel 1 serving as the ground rail or side rail are respectively attached to the corresponding 6mm thick ordinary toughened glass and the embedded bracket. The T-shaped graphite fireproof expansion rubber strips 6 filled on the corresponding profiled steel pressing plates 2 of the profiled steel keel 1 serving as the middle column are respectively attached to the corresponding 6mm thick ordinary toughened glass. Connect the profiled steel pressing plate 2 and the U-shaped profiled steel 4 with screw studs 5. After completing the locking of the profiled steel pressing plate 2, buckle the profiled steel outer cover 3 outside the profiled steel pressing plate 2 to complete the installation of the 6mm thick ordinary toughened glass.

[0048] The double - layer glass partition structure provided by the utility model shortens the size of the width of the production materials, resulting in a short installation time, a small floor space, and cost savings in production; double - glass fire - resistant tempered glass with different thicknesses and high strength and good fire - resistance is used. The double - glass fire - resistant tempered glass has successfully passed a 180 - minute fire - resistance test (the fire - resistance test effects are different for glasses of different materials), and has good flame - retardant effects.

[0049] The above embodiments are only used to illustrate the technical idea of the utility model, and the protection scope of the utility model cannot be limited thereby. Any changes made on the basis of the technical solution according to the technical idea proposed by the utility model fall within the protection scope of the utility model; technologies not involved in the utility model can all be realized through the prior art.

Claims

1. A double-layer glass partition structure, characterized in that: The double - layer glass partition structure includes a steel keel (1), a steel pressing plate (2), a U - shaped steel (4), a screw stud (5), and glass (7). The steel keel (1) is used as the middle column of the double - layer glass partition structure, or the surrounding frame track and the middle column. A U - shaped steel (4) is arranged in the keel locking cavity (12) of the steel keel (1) between the glasses (7). Steel pressing plates (2) are respectively arranged on both sides of the steel keel (1) on the outer sides of the corresponding glasses (7). The screw stud (5) is thread - connected to the steel pressing plate (2) in sequence from the outer side of the glass (7) inward, passes through the end side of the glass (7), and is thread - connected to the U - shaped steel (4). The screw stud (5) and the U - shaped steel (4) form a screw - type tensioning structure to lock the steel pressing plate (2) and the steel keel (1).

2. The double-glazed partition structure according to claim 1, characterized in that: The steel keel (1) is formed by hot - melt welding two steel profiles (11) with the same structure and placed back - to - back symmetrically. Any one of the steel profiles (11) is composed of a positive U - shaped groove and two inverted U - shaped grooves arranged side by side. The two inverted U - shaped grooves are respectively located on both sides of the positive U - shaped groove and share adjacent faces. The height of the outer side surface of the inverted U - shaped groove is less than the height of the adjacent face shared by the inverted U - shaped groove and the positive U - shaped groove, so that the corresponding inverted U - shaped grooves of the two steel profiles (11) on the same side of the steel keel (1) form a keel locking cavity (12) with an open middle part.

3. The double-glazed partition structure according to claim 2, characterized in that: The free edge of the outer side surface of the inverted U - shaped groove has a folded surface (13) facing the positive U - shaped groove. The folded surface (13) integrally formed with the outer side surface of the inverted U - shaped groove can seal part of the opening of the corresponding inverted U - shaped groove. The corresponding folded surfaces (13) of the two steel profiles (11) are parallel to each other and can support and position the U - shaped steel (4).

4. The double-glazed partition structure according to claim 3, characterized in that: Threads that can be thread - connected to the screw stud (5) are arranged on the outer wall of the folded surface (13).

5. The double-glazed partition structure according to any one of claims 1 to 4, characterized in that: A steel outer cover (3) is sleeved on the outer side of the steel pressing plate (2). Sharp corners are formed respectively between the cover plate surface and the two adjacent surfaces of the steel outer cover (3).

6. The double-glazed partition structure according to any one of claims 1 to 4, characterized in that: Graphite fire - proof expansion rubber strips (6) are respectively arranged on the peripheral wall of the glass (7) and the inner and outer sides adjacent to the peripheral wall.

7. The double-glazed partition structure according to any one of claims 1 to 4, characterized in that: The double - layer glass partition structure further includes a steel double - glass cover plate (9) in the shape of a cap. The cap crown of the steel double - glass cover plate (9) is used to cover the inner cavity structure of the double - layer glass partition structure, and the brim of the steel double - glass cover plate (9) is located at the end side of the glass (7). Threads that can be thread - connected to the screw stud (5) are arranged on the brim of the steel double - glass cover plate (9).

8. The double-glazed partition structure according to claim 7, characterized in that: A graphite fire - proof expansion rubber strip (6) and / or a foam cotton strip are arranged between the steel double - glass cover plate (9) and the outer side surface of the steel keel (1).

9. The double-glazed partition structure according to any one of claims 1 to 4, characterized in that: When the surrounding frame rails and the center column of the double-layer glass partition structure are all made of steel keels (1), each adjacent steel keel (1) is fixedly connected by an L-shaped keel connector (81) configured with bolts; the keel connector (81) is composed of two flat surfaces with the same structure and having U-shaped grooves and bolt holes, and the flat surfaces are fixed to the bottom of the corresponding U-shaped groove of the steel keel (1) by bolts; the parallel flat surfaces of different keel connectors (81) in two U-shaped grooves in the same steel keel (1) can be connected by the same bolt; the keel connector (81) has reinforcing ribs.

10. The double-glazed partition structure according to any one of claims 1 to 4, characterized in that: When the central column of the double-layer glass partition structure adopts a steel keel (1) and the surrounding frame rails of the double-layer glass partition structure adopt steel rails (10), or a combination of steel rails (10) and steel keels (1), each adjacent steel keel (1) is connected by bolts using an L-shaped keel connector (81), each adjacent steel rail (10) and steel keel (1) is connected by bolts using an L-shaped keel rail connector (82), and each adjacent steel rail (10) is connected by bolts using an L-shaped rail connector; the keel connector (81) is composed of two flat surfaces with the same structure and a U-shaped groove and bolt holes, and the flat surfaces are fixed to the bottom of the corresponding U-shaped groove of the steel keel (1) by bolts; two U-shaped grooves in the same steel keel (1) are connected by bolts. The parallel flat surfaces of different keel connectors (81) in the U-shaped groove can be connected by the same bolt; the keel connector (81) is provided with reinforcing ribs; the keel track connector (82) is composed of a flat surface with a U-shaped groove and a bolt hole and a convex groove surface with a U-shaped groove and a bolt hole, the flat surface is fixed to the bottom of the U-shaped groove of the corresponding steel keel (1) by bolts, the convex groove surface covers the convex part in the middle of the corresponding steel track (10) and is fixed by bolts, and the keel track connector (82) is provided with reinforcing ribs; the track connector is composed of two convex groove surfaces with the same structure and with U-shaped grooves and bolt holes, the convex groove surface covers the convex part in the middle of the corresponding steel track (10) and is fixed by bolts, and the track connector is provided with reinforcing ribs.

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