Fabricated form-removal-free building structure

Abstract

The invention relates to an assembly type formwork-removal-free building structure, and belongs to the field of assembly type buildings. Comprising an outer wall plate (22), an inner wall plate (25), a heat preservation layer (23) and an opposite-pulling assembly (5), the outer wall plate (22) and the inner wall plate (25) are arranged at intervals through the opposite-pulling assembly (5), the heat preservation layer (23) is arranged between the outer wall plate (22) and the inner wall plate (25), and concrete (10) is poured into a gap; the opposite-pulling assembly (5) comprises an opposite-pulling screw rod (51) and an opposite-pulling piece (55), the opposite-pulling screw rod (51) penetrates through the opposite-pulling piece (55), the two ends of the opposite-pulling screw rod (51) penetrate out of the space between the outer wall plates (22) and the space between the inner wall plates (25), and nuts (52) are arranged at the penetrating-out ends. The outer wall plate (7) and the inner wall plate (10) are arranged in a spaced mode through the opposite-pulling assembly (5), and concrete (8) is poured to be integrally formed. The problems that wall filling, heat preservation and decoration of an existing house need to be conducted step by step, construction is complex, and the secondary decoration cost is high are solved.

Description

Technical Field

[0001] The invention relates to an assembled formwork-free building structure, belonging to the field of assembled buildings. Background Art

[0002] Conventional housing typically begins with the construction of reinforced concrete forms for columns and floor slabs, forming the overall framework. Walls are then filled and masonry is then applied, followed by plumbing, insulation, and finishing work to create a habitable building. Because the main columns and floor slabs of existing houses are cast using reinforced concrete, conventional casting methods pre-cast structural columns or surround them with steel columns to support the floor slabs and walls. This method often requires the installation of formwork and pre-set steel mesh according to design requirements before casting. The formwork requires various supports to secure its position, making the actual operation process cumbersome and labor-intensive. Furthermore, after casting, once the columns and floor slabs are formed, the formwork must be completely removed. This process requires significant manpower and resources, resulting in a long construction period, high labor intensity, and potential installation risks. Walls are constructed using bricks, which require plastering on the outside of the bricks, columns, and floor slabs, followed by plumbing, insulation, and finishing work. Rising labor costs in recent years have contributed to the high construction costs of traditional houses. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the wall filling, insulation and decoration of existing houses need to be carried out step by step, the construction is complicated and the secondary decoration cost is high.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an assembled formwork-free building structure, including an exterior wall body, the exterior wall body including exterior wall panels, interior wall panels, an insulation layer and a tensioning assembly, the exterior wall panels and the interior wall panels are spaced apart by the tensioning assembly, the insulation layer is arranged in the middle of the gap between the exterior wall panels and the interior wall panels, and concrete is poured in the gap between the insulation layer and the exterior wall panels or the interior wall panels; the tensioning assembly includes a tensioning screw and a tensioning member, the tensioning member is a U-shaped structure, and is spaced apart between the exterior wall panels and the interior wall panels, and the two ends of the tensioning member are respectively in contact and connected with the inner walls of the opposite exterior wall panels and the interior wall panels, the tensioning screw is passed through the two side walls of the tensioning member, and the two ends are respectively passed through along the gap between adjacent exterior wall panels and the gap between the interior wall panels, and the passing end is provided with a nut.

[0005] Wherein, in the above structure, a C-shaped fixing keel is provided on the outside of the tensioning member, and the outer end of the tensioning member is arranged in the opening of the fixing keel.

[0006] Among them, the above structure also includes a fixing part, which is a stem-shaped structure. The outside of the small end of the fixing part is provided with several barbs, and it penetrates into the insulation layer, and the large end is in contact and connected with the inner side of the outer wall panel or the inner wall panel.

[0007] Among them, the above structure also includes C-shaped steel, which is arranged at intervals on the outside of the outer wall panel and the inner wall panel, and is respectively close to the outer walls of the outer wall panel and the inner wall panel. A number of connecting grooves are opened on the bottom surface of the C-shaped steel, so that the two ends of the tension screw pass through the C-shaped steel on the corresponding side respectively, and the protruding end is provided with a U-shaped sleeve, which is clamped on the outside of the C-shaped steel. Tightening the nut can connect the sleeve to the outer wall of the C-shaped steel.

[0008] Among them, the above structure also includes a T-shaped screw, the C-shaped steel is arranged horizontally and vertically in an alternating manner, and is connected and fixed by a T-shaped screw, and the ends of the tension screws passing through the C-shaped steel are provided with nuts; a square boss is provided at the connection between the screw and the large end of the T-shaped screw, and the width of the square boss is adapted to the width of the connecting groove on the bottom surface of the C-shaped steel.

[0009] Among them, the above structure also includes a floor slab, which includes a steel mesh and a support. The steel mesh is connected to the steel cage or steel column on the column side of the outer wall, and the inner wall panels are laid under the steel mesh. The inner wall panels are connected and fixed by connecting strips with an inverted "J" structure. The support is an inverted T-shaped structure and is arranged at intervals on the upper end of the inner wall panel. A clip is provided on the vertical side of the support, and the steel bars of the steel mesh are clipped into the clip.

[0010] Furthermore, the above structure also includes a jin strip, which includes a connecting plate and a fixed plate. The cross-section of the connecting plate is an inverted L-shaped structure, and the cross-section of the fixed plate is an inverted U-shaped structure. The fixed plate is arranged on the inner side of the connecting plate, and the lower end of the connecting plate is connected to the left end of the opening of the fixed plate. The upper bent edge of the connecting plate and the outer wall of the fixed plate form an installation groove. The inner wall panel vertically arranged below the steel mesh is connected through the jin strip, and the two ends of the same inner wall panel are respectively inserted into the installation groove and the opening.

[0011] Among them, the above structure also includes an inner wall body, which includes inner wall panels, an insulation layer and a tensioning component. The inner wall panels are arranged at intervals through the tensioning component; the insulation layer is arranged in the middle of the gap between the inner wall panels, and concrete is poured on the outside.

[0012] Among them, the above structure also includes wall panel splicing strips, and strip grooves are provided on the outer end faces of the outer wall panels and the inner wall panels. The wall panel splicing strips are hollow square tubular structures, and one side wall is an inward-concave V-shaped structure, and clamping strips are provided on the outer walls on both sides of the V-shaped side wall. The clamping strips are clamped in the strip grooves on the end faces between adjacent outer wall panels and adjacent inner wall panels, and the tension screws pass through the wall panel splicing strips along the V-shaped side walls.

[0013] Among them, the above structure also includes a sealing strip and a mounting piece. The mounting piece is an F-shaped structure, which is connected to the base layer by screws, and the ends of the outer wall panels and the inner wall panels are inserted into the openings of the mounting piece; the sealing strip is a cross-shaped structure, and the upper and lower ends are respectively inserted into the strip holes between adjacent outer wall panels or inner wall panels, and grooves are provided on both sides of the middle of the sealing strip.

[0014] The beneficial effects of the present invention are as follows: this building supports the formwork for wall casting, insulation, interior and exterior decoration, and water and electricity together with the structure, and casts them together, which is convenient for actual operation and shortens the construction period. The spacing between the exterior wall panels and the interior wall panels is maintained by the tensioning assembly, and the wall insulation is achieved by providing an insulation layer. Concrete is then directly poured into the gap between the insulation layer and the exterior wall panels or the interior wall panels. Since the columns are also between the exterior wall panels and the interior wall panels, the exterior side of the columns are also provided with exterior wall panels and interior wall panels. Therefore, the cast walls and the exterior side of the columns are covered by the exterior wall panels and the interior wall panels. The exterior wall panels and interior wall panels of this structure do not need to be removed later as support members and can be used to decorate the base layer, which greatly reduces the labor intensity and construction period and improves efficiency. At the same time, after the concrete solidifies, the tensioning screws of the tensioning assembly are cut off from the portion extending from the exterior wall panels and the interior wall panels. The remaining tensioning screws and tensioning members are formed integrally with the concrete, thereby ensuring the spacing between the exterior wall panels and the interior wall panels and increasing the structural strength of the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.

[0016] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure at point I in the middle.

[0017] Figure 3 It is a schematic diagram of the floor structure of the present invention.

[0018] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at II in the middle.

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the exterior wall of the present invention.

[0020] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point III.

[0021] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at position IV in the middle.

[0022] Figure 8 It is a structural schematic diagram of the inner wall of the present invention.

[0023] Figure 9For the present invention Figure 8 Enlarged schematic diagram of the structure at V in the middle.

[0024] Figure 10 It is a schematic structural diagram of the jin character strip of the present invention.

[0025] Figure 11 This is a schematic diagram of the support structure of the present invention.

[0026] Figure 12 It is a schematic diagram of the fixing structure of the present invention.

[0027] Figure 13 This is a schematic diagram of the connecting bar structure of the present invention.

[0028] Figure 14 This is a schematic structural diagram of the tension member and the tension screw after welding in the present invention.

[0029] Figure 15 Schematic diagram of the connector structure of the present invention.

[0030] Figure 16 It is a schematic diagram of the T-shaped screw structure of the present invention.

[0031] Figure 17 This is a schematic diagram of the wall panel splicing strip structure of the present invention.

[0032] Figure 18 This is another structural schematic diagram of the wall panel splicing strip of the present invention.

[0033] Figure 19 Schematic diagram of the connection structure of the sealing strip of the present invention.

[0034] Figure 20 For the present invention Figure 3 Enlarged schematic diagram of the structure at position VI.

[0035] The markings in the figure are: 1 is the inner wall, 2 is the outer wall, 21 is the jinzi strip, 211 is the connecting plate, 212 is the fixing plate, 213 is the installation groove, 214 is the flange, 22 is the outer wall panel, 23 is the insulation layer, 24 is the fixing part, 241 is the disc, 242 is the barb, 25 is the inner wall panel, 26 is the connecting strip, 27 is the installation part, 28 is the sealing strip, 3 is the column, 4 is the steel column, 5 is the tension component, 51 is the tension screw, 52 is the nut, 53 It is a sleeve, 54 is a wall panel splicing strip, 541 is a card strip, 55 is a tension piece, 551 is a reinforcing rib, 552 is a through hole, 56 is a fixed keel, 6 is a connecting piece, 61 is a connecting hole, 62 is a fixing hole, 7 is a T-shaped screw, 71 is a square boss, 8 is a C-shaped steel, 9 is a floor slab, 91 is a steel mesh, 92 is a support, 921 is a bayonet, 93 is a sound insulation pad, 94 is a mounting strip, 10 is concrete, 11 is an angle code, and 12 is a reinforcing nail. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] like Figures 1 to 20As shown, the prefabricated formwork-free building structure of the present invention includes an exterior wall 2, wherein the exterior wall 2 includes exterior wall panels 22, interior wall panels 25, an insulation layer 23 and a tensioning assembly 5, wherein the exterior wall panels 22 and the interior wall panels 25 are spaced apart by the tensioning assembly 5, the insulation layer 23 is arranged in the middle of the gap between the exterior wall panels 22 and the interior wall panels 25, and concrete 10 is poured in the gap between the insulation layer 23 and the exterior wall panels 22 or the interior wall panels 25; the tensioning assembly 5 includes a tensioning screw 51 and a tensioning member 55, wherein the tensioning member 55 is a U-shaped structure and is spaced apart between the exterior wall panels 22 and the interior wall panels 25, and the two ends of the tensioning member 55 are respectively in contact and connected with the inner walls of the exterior wall panels 22 and the interior wall panels 25 facing each other, the tensioning screw 51 is passed through the two side walls of the tensioning member 55, and the two ends are respectively passed through along the gap between adjacent exterior wall panels 22 and the gap between the interior wall panels 25, and the passing end is provided with a nut 52. Those skilled in the art will appreciate that this structure maintains the spacing between the exterior wall panels 22 and interior wall panels 25 by means of the tensioning assembly 5, then arranges the insulation layer 23 in the middle of the gap between the exterior wall panels 22 and interior wall panels 25, and pours concrete 10 into the gap to form the exterior wall 2. The insulation layer 23 provides thermal insulation for the exterior wall 2. Due to the size of the exterior wall 2, which is an infill wall, the concrete 10 is preferably fiber-reinforced concrete to ensure structural strength. The exterior wall panels 22 and interior wall panels 25 of this structure, acting as support members for the concrete 10, do not need to be removed later, significantly reducing labor intensity and construction time, thereby improving efficiency. The tensioning assembly 5 primarily comprises a tensioning member 55 and a tensioning screw 51. The tensioning member 55 is a U-shaped structure, spaced between the exterior wall panel 22 and the interior wall panel 25. The ends of the tensioning member 55 are in contact with the inner walls of the exterior wall panel 22 and the interior wall panel 25, respectively, maintaining the spacing between the exterior wall panel 22 and the interior wall panel 25, thereby ensuring a consistent thickness of the wall after pouring. The tensioning screw 51 is inserted through the two side walls of the tensioning member 55. In practice, through-holes 552 may be provided on both sides of the tensioning member 55 to facilitate the insertion of the tensioning screw 51. To increase the structural strength of the tensioning member 55, a number of reinforcing ribs 551 are spaced apart on the outer bottom side of the tensioning member 55. The ends of the tensioning screws 51 extend along the gaps between adjacent exterior wall panels 22 and interior wall panels 25, respectively. Nuts 52 are fitted over the protruding ends. Tightening the nuts 52 forces the end faces of the nuts 52 into contact with the exterior wall panels 22 or interior wall panels 25, thereby securing the spacing between the exterior and interior wall panels 22, 25 and preventing the concrete 10 from bursting and flowing out during pouring. After the concrete 10 solidifies, the nuts 52 are removed and the portions of the tensioning screws 51 extending beyond the exterior and interior wall panels 22, 25 are cut off. The remaining tensioning screws 51 and tensioning members 55 are then integrated with the concrete 10, further ensuring the spacing between the exterior and interior wall panels 22, 25 and increasing the structural strength of the concrete 10. Furthermore, the exterior and interior wall panels 22, 25 should enclose the structural columns 3 or steel columns 4, and the insulation layer 23 should be positioned along the exterior of the structural columns 19 or steel columns 4 to facilitate single-shot pouring and ensure structural strength.At the same time, in order to ensure that the outer wall panels 22 and the inner wall panels 25 fit tightly with the poured concrete 10, a number of reinforcement nails 12 can be screwed into the outer wall panels 22 and the inner wall panels 25. After pouring is completed, the reinforcement nails 12 pass through the ends of the outer wall panels 22 and the inner wall panels 25 and are inserted into the concrete 10, so that the outer wall panels 22 and the inner wall panels 25 fit more tightly. At the same time, it is preferred to provide a threaded structure on the side wall of the penetration end of the reinforcement nail 12 to increase the contact area with the concrete 10 and ensure that the connection is tight.

[0038] Preferably, a C-shaped fixed keel 56 is provided on the outside of the tension member 55 in the above structure, and the outer end of the tension member 55 is provided in the opening of the fixed keel 56. It should be understood by those skilled in the art that in order to prevent the tension member 55 from rotating with the nut 52, the present structure preferably provides a C-shaped fixed keel 56 on the outside of the tension member 55. In practice, it is preferred that the fixed keel 56 be provided vertically, and in practice, the fixed keel 56 can be fixed to the outer C-shaped steel 8 by screws. The outer end of the tension member 55 is provided in the opening of the fixed keel 56, and the position of the tension member 55 is limited by the fixed keel 56. In practice, it is preferred that the tension screw 51 be welded and fixed to the tension member 52 to increase the structural strength of the tension member 52, and to avoid deformation of the tension member 55 causing inconsistent spacing between the exterior wall panel 22 and the interior wall panel 25.

[0039] Preferably, the above structure also includes a fixing member 24, which is a stem-shaped structure. The outer side of the small end of the fixing member 24 is provided with a plurality of barbs 242, and the fixing member 24 penetrates into the insulation layer 23, and the large end is in contact and connected with the inner side of the outer wall panel 22 or the inner wall panel 25. It should be understood by those skilled in the art that in order to facilitate the setting of the securing layer in the middle of the outer wall panel 22 and the inner wall panel 25, the present structure is preferably further provided with a stem-shaped fixing member, specifically, the small end of the fixing member penetrates into the insulation layer 23, and the large end is in contact and connected with the inner side of the outer wall panel 22 or the inner wall panel 25. Since the fixing member 24 is provided on both sides of the insulation layer 23, the position of the insulation layer 23 can be ensured. The outer side of the small end of the fixing member 24 is provided with a plurality of barbs 242, and the barbs can prevent it from falling off during the pouring of concrete 10. The middle part of the fixing member 24 is a disc 241, which increases the contact area with the side wall of the insulation layer 23, limits the penetration length of the fixing member 24, ensures that the insulation layer 23 is located in the middle position, and further ensures the casting quality.

[0040] Preferably, the above structure also includes C-shaped steel 8, which is arranged at intervals on the outside of the outer wall panel 22 and the inner wall panel 25, and is respectively close to the outer walls of the outer wall panel 22 and the inner wall panel 25. A number of connecting grooves are provided on the bottom surface of the C-shaped steel 8, so that the two ends of the tension screw 51 pass through the C-shaped steel 8 on the corresponding side, and the protruding end is provided with a U-shaped clamping sleeve 53, which is clamped on the outside of the C-shaped steel 8. Twisting the nut 52 can connect the clamping sleeve 53 to the outer wall of the C-shaped steel 8. It should be understood by those skilled in the art that in order to ensure the casting quality of the outer wall 2, it is actually preferred to arrange C-shaped steel 8 at intervals on the outside of the outer wall panel 22 and the inner wall panel 25 to ensure the stability of the formwork structure, and the C-shaped steel 8 can be removed after casting and shaping. The C-shaped steel 8 is respectively close to the outer wall of the outer wall panel 22 and the inner wall panel 25, and the adjacent C-shaped steels 8 are connected into one piece. C-shaped steels 8 should be added and welded to the corners of the outer wall panel 22 and the inner wall panel 25 to prevent expansion and deformation during the pouring of the concrete 10. A number of connecting grooves are provided on the bottom surface of the C-shaped steel 8, so that the two ends of the tension screw 51 pass through the C-shaped steel 8 on the corresponding side along the connecting groove, and the nut 52 at the end of the tension screw 51 is tightened. The setting of the clamping sleeve 53 can increase the structural strength of the C-shaped steel 8 when tightened with the nut 52, and avoid the deformation of the C-shaped steel 8 causing inconsistent wall thickness.

[0041] Preferably, the above structure also includes T-shaped screws 7, the C-shaped steels 8 are arranged in a staggered manner horizontally and vertically, and are connected and fixed by T-shaped screws 7, and the ends of the tension screws 51 passing through the C-shaped steels 8 are provided with nuts 52; the connection between the screw and the large end of the T-shaped screw 7 is provided with a square boss 71, and the width of the square boss 71 is adapted to the width of the connection groove on the bottom surface of the C-shaped steel 8. It should be understood by those skilled in the art that in order to ensure the stability of the formwork structure, the present device preferably adopts C-shaped steels 8 that are staggered horizontally and vertically, and are connected and fixed by T-shaped screws 7. It is further preferred that the C-shaped steels 8 that are arranged at intervals vertically are respectively close to the outer walls of the outer wall panels 22 and the inner wall panels 25. In fact, after the T-shaped screws 7 are passed through the connection grooves at the staggered positions, the installation can be completed by screwing in the appropriate nuts 52. In order to facilitate the connection of the transverse C-shaped steel 8 at the corner, this structure connects the inner transverse C-shaped steel 8 into one piece through the L-shaped angle code 11, while the outer transverse C-shaped steel 8 can be connected through the connecting piece 6. The connecting piece 6 of this structure is actually preferably a bending structure with an angle of 135°, and fixing holes 62 are arranged at intervals on one bending edge, and U-shaped connecting holes 61 are arranged on the other bending edge. It is actually connected to the outer transverse C-shaped steel 8 through the fixing holes 62 under the action of fastening bolts, and the fastening screw is inserted into the connecting hole 61 and the nut 52 is screwed into it to achieve connection and fixation. In order to facilitate the tightening of the T-shaped screw 7, the present structure preferably provides a square boss 71 at the connection between the screw and the large end of the T-shaped screw 7, and the width of the square boss 71 is adapted to the width of the connecting groove 2 on the bottom surface of the C-shaped steel 8. In fact, the T-shaped screw 7 can be circumferentially fixed by clamping the square boss 71 in the connecting groove 2 of a C-shaped steel 8, thereby avoiding the secondary rotation of the T-shaped screw 7 when the nut 52 is screwed in for tightening, causing inconvenience in tightening.

[0042] Preferably, the above structure also includes a floor slab 9, which includes a steel mesh 91 and support members 92. The steel mesh 91 is connected to the steel cage or steel column 4 on the side of the column 3 of the exterior wall 2. The interior wall panels 25 are laid below the steel mesh 91. The interior wall panels 25 are connected and fixed by connecting strips 26 with an inverted "X" structure. The support members 92 are inverted T-shaped structures and are spaced apart at the upper ends of the interior wall panels 25. The vertical edges of the support members 92 are provided with bayonets 921, and the steel bars of the steel mesh 91 are clamped into the bayonets 921. It should be understood by those skilled in the art that further providing the floor slab 9 on the exterior wall 2 can achieve a multi-story design of the building. Preferably, the floor slab 9 includes a steel mesh 91 and support members 92, specifically connecting the steel mesh 91 to the steel cage or steel column 4 on the side of the column 3 of the exterior wall 2 to maintain the connection and fixation of the steel mesh 91. At the same time, the interior wall panels 25 are laid below the steel mesh 91. The provision of the interior wall panels 25 facilitates the sealing of the cement mortar when pouring the concrete 10. Due to the large size of the floor slab 9, multiple interior wall panels 25 need to be spliced together. In practice, adjacent interior wall panels 25 are connected and fixed by connecting strips 26 with an inverted "X" structure. The bent edges of the connecting strips 26 are screwed to connect the two adjacent interior wall panels 25 on the same plane into one piece. To facilitate the support of the steel mesh 91, the support members 92 are preferably inverted T-shaped structures and spaced apart at the upper ends of the interior wall panels 25. The lower ends of the support members 92 can be fixed to the interior wall panels 25 by screws. A clip 921 is provided on the vertical edge of the support member 92, so that the steel bars of the steel mesh 91 are clipped into the clip 921 and tied with steel wire. This structural arrangement can actually prevent the steel mesh 91 from moving during casting and affecting the casting quality. At the same time, to achieve shock absorption and sound insulation for the floor slab 9, a layer of sound insulation pads 93 can be laid on the upper section of the interior wall panels 25. The sound insulation pads 93 can be fixed to the upper end surface of the interior wall panels 25 using U-shaped mounting strips 94 and screws, and then cast into one piece.

[0043] Preferably, the above structure also includes a jin strip 21, which includes a connecting plate 211 and a fixed plate 212. The cross-section of the connecting plate 211 is an inverted L-shaped structure, and the cross-section of the fixed plate 212 is an inverted U-shaped structure. The fixed plate 212 is arranged on the inner side of the connecting plate 211, and the lower end of the connecting plate 211 is connected to the left end of the opening of the fixed plate 212. The bent edge of the upper end of the connecting plate 211 and the outer wall of the fixed plate 212 form a mounting groove 213. The inner wall panel 25 vertically arranged below the steel mesh 91 is connected through the jin strip 21, and the two ends of the same inner wall panel 25 are respectively inserted into the mounting groove 213 and the opening. It should be understood by those skilled in the art that, since the span of the floor 9 of some rooms is large, it is actually necessary to increase the bearing strength of the floor 9 through structural beams, so a protruding structural beam will be designed on the lower end surface of some floor slabs 9. Since the lower end of the floor slab 9 is supported by the inner wall panel 25 for easy casting, in order to realize the integral casting of the structural beam and the floor slab 9, the inner wall panel 25 located at the structural beam needs to be set vertically. In this structure, it is preferred to realize the vertical connection of the inner wall panel 25 at the structural beam through the jin strip 21. This structure includes a connecting plate 211 and a fixing plate 212, and The cross section of the connecting plate 211 is an inverted L-shaped structure, and the cross section of the fixed plate 212 is an inverted U-shaped structure. The fixed plate 212 is arranged on the inner side of the connecting plate 211, and the lower end of the connecting plate 211 is connected to the left end of the opening of the fixed plate 212. This structure allows the connecting plate 211 and the fixed plate 212 to be elastically connected. This connection method allows the angle between the installation groove 213 formed by the upper bending edge of the connecting plate 211 and the outer wall of the fixed plate 212 and the opening of the fixed plate 212 to be appropriately adjusted, meeting the installation requirements of the inner wall panel 25 at uneven corners, and is more convenient in actual use. In order to avoid burrs on the outer end of the upper bending edge of the connecting plate 211, ensure installation safety, and increase the structural strength of the end, it is preferred that the outer end of the upper bending edge of the connecting plate 211 be bent inward to form a flange 214, and the flange 214 should be close to the upper bending edge of the connecting plate 211. Similarly, the open end of the fixed plate 212 can also be bent inward for convenience. To ensure the structural strength of the connection, the connection between the connecting plate 211 and the fixed plate 212 is preferably formed as a single piece by bending. Alternatively, the connection may be formed from a single plate. Specifically, one of the inner wall panels 25 to be installed vertically is inserted into the mounting groove 213 formed between the bent edge of the upper end of the connecting plate 211 and the outer wall of the fixed plate 212, and the other inner wall panel 25 is inserted into the opening of the fixed plate 212. This installation allows the two inner wall panels 25 to be vertically connected. The two ends of the same inner wall panel 25 can be fixed by snapping into the mounting grooves 213 and openings in different bodies on the corresponding sides. The jin strip 21 is connected and fixed to the inner wall panel 25 by screwing in screws. Specifically, the end of the inner wall panel 25 inserted into the mounting groove is screwed along the inner bottom surface of the opening to connect and fix it. To prevent the screw from leaking, another screw is passed through the fixed plate 212 on the casting side of the inner wall panel 25 and connected to the inner wall panel 25 inserted into the opening. The screw cannot pass through the other side wall of the fixed plate 212.And the jin character strip 21 of this structure also can be used for the installation support structure of the door and window hole of whole building.In order to guarantee the structural strength of junction, this structure is respectively plugged in mounting groove 213 and the opening with the two ends of same inner wallboard 25.

[0044] Preferably, the above structure also includes an interior wall 1, comprising interior wall panels 25, an insulation layer 23, and a tensioning assembly 5. The interior wall panels 25 are spaced apart by the tensioning assembly 5. The insulation layer 23 is positioned in the middle of the gaps between the interior wall panels 25 and is cast with concrete 10 on the outside. Those skilled in the art will appreciate that, to facilitate the separation of each floor of the building, the present structure also includes an interior wall 1. The structure of the interior wall 1 is essentially the same as that of the exterior wall 2, except that the non-removable formwork on both sides of the interior wall 1 is composed of interior wall panels 25. Furthermore, both the interior wall 1 and the exterior wall 2 of the present building are infill walls, while the existing support beams and support columns are constructed using conventional means. Preferably, the interior wall 1 includes interior wall panels 25, an insulation layer 23, and a tensioning assembly 5. The tensioning assembly 5 maintains the spacing of the interior wall panels 25 on both sides of the interior wall 1. Similarly, the insulation layer 23 is positioned in the middle of the gaps between the interior wall panels 25 and is cast with concrete 10 on the outside.

[0045] Preferably, the above structure further includes a wall panel splicing strip 54, wherein strip grooves are provided on the outer end surfaces of the exterior wall panels 22 and the interior wall panels 25. The wall panel splicing strip 54 is a hollow square tubular structure, and one side wall is an inwardly concave V-shaped structure. Clipping strips 541 are provided on the outer walls on both sides of the V-shaped side wall. The clipping strips 541 are clipped into the strip grooves on the end surfaces between adjacent exterior wall panels 22 and adjacent interior wall panels 25, and the tensioning screws 51 pass through the wall panel splicing strip 54 along the V-shaped side wall. It should be understood by those skilled in the art that in order to facilitate the connection between adjacent exterior wall panels 22 or interior wall panels 25 where the tensioning screws 51 pass through, the present structure preferably has strip grooves provided on the outer end surfaces of the exterior wall panels 22 and the interior wall panels 25, and the actual connection is achieved through the wall panel splicing strip 54. The wall panel splicing strip 54 is preferably a hollow square tubular structure with one sidewall having an inwardly concave V-shaped structure. Clipping strips 541 are provided on the outer walls on both sides of the V-shaped sidewall. The clipping strips 541 are locked into the strip grooves on the end surfaces between adjacent exterior wall panels 22 and adjacent interior wall panels 25. The tensioning screws 51 pass through the wall panel splicing strip 54 along the V-shaped sidewall. To ensure the structural stability of the exterior wall panels 22, it is actually preferred that two clipping strips 541 be provided on a single sidewall at the connection of the exterior wall panels 22, spaced apart. The clipping strips 541 near the V-shaped sidewall are locked into the strip holes of the exterior wall panels 22.

[0046] Preferably, the above structure further includes a sealing strip 28 and a mounting member 27. The mounting member 27 is an F-shaped structure, connected to the base layer by screws, and the ends of the exterior wall panels 22 and the interior wall panels 25 are inserted into the openings of the mounting member 27. The sealing strip 28 is a cross-shaped structure, and the upper and lower ends are respectively inserted into the strip-shaped holes between adjacent exterior wall panels 22 or interior wall panels 25, and grooves are provided on both sides of the middle portion of the sealing strip 28. It should be understood by those skilled in the art that in order to keep the lower ends of the exterior wall panels 22 and the interior wall panels 25 fixed, the present device preferably includes an F-shaped mounting member 27. Specifically, the mounting member 27 is connected to the base layer by screws so that the opening of the mounting member 27 faces upward, and the lower ends of the exterior wall panels 22 and the interior wall panels 25 are inserted into the openings of the mounting member 27. At the same time, in order to prevent the concrete 10 slurry from overflowing from the gaps between adjacent exterior wall panels 22 and the gaps between adjacent interior wall panels 25 during pouring, the present structure preferably adopts a sealing strip 28 for sealing. Preferably, the sealing strip 28 is a cross-shaped structure, with the upper and lower ends respectively inserted into the strip holes between adjacent exterior wall panels 22 or interior wall panels 25, and grooves are provided on both sides of the middle part of the sealing strip 28, which facilitates the integral casting while increasing the strength of the casting structure.

Claims

1. An assembled formwork-free building structure, comprising an exterior wall (2), characterized in that: The outer wall (2) comprises an outer wall panel (22), an inner wall panel (25), an insulation layer (23) and a tensioning assembly (5); the outer wall panel (22) and the inner wall panel (25) are spaced apart by the tensioning assembly (5); the insulation layer (23) is arranged in the middle of the gap between the outer wall panel (22) and the inner wall panel (25); and concrete (10) is poured in the gap between the insulation layer (23) and the outer wall panel (22) or the inner wall panel (25); the tensioning assembly (5) comprises tensioning screws The rod (51) and the tension member (55) are U-shaped structures and are arranged between the outer wall panel (22) and the inner wall panel (25). The two ends of the tension member (55) are respectively in contact with the inner walls of the outer wall panel (22) and the inner wall panel (25) facing each other. The tension screw (51) is passed through the two side walls of the tension member (55), and the two ends are respectively passed through the gap between the adjacent outer wall panels (22) and the gap between the inner wall panels (25), and the passing end is provided with a nut (52).

2. The assembled formwork-free building structure according to claim 1 is characterized in that: A C-shaped fixing keel (56) is provided on the outside of the tensioning member (55), and the outer end of the tensioning member (55) is arranged in the opening of the fixing keel (56).

3. The assembled formwork-free building structure according to claim 1 is characterized in that: The fixing member (24) is also included. The fixing member (24) is a stem-shaped structure. The fixing member (24) is provided with a plurality of barbs (242) on the outside of the small end thereof and penetrates into the insulation layer (23). The large end thereof is in contact with and connected to the inside of the outer wall panel (22) or the inner wall panel (25).

4. The assembled formwork-free building structure according to claim 1 is characterized in that: It also includes C-shaped steel (8), which is spaced apart on the outside of the outer wall panel (22) and the inner wall panel (25), and is respectively close to the outer wall of the outer wall panel (22) and the inner wall panel (25). A plurality of connecting grooves are provided on the bottom surface of the C-shaped steel (8), so that the two ends of the tension screw (51) pass through the C-shaped steel (8) on the corresponding side, and the end sleeve is provided with a U-shaped clamping sleeve (53), which is clamped on the outside of the C-shaped steel (8). The clamping sleeve (53) can be connected to the outer wall of the C-shaped steel (8) by turning the nut (52).

5. The assembled formwork-free building structure according to claim 4 is characterized in that: It also includes a T-shaped screw (7), the C-shaped steel (8) is staggered horizontally and vertically, and is connected and fixed by the T-shaped screw (7), and the ends of the tension screw (51) passing through the C-shaped steel (8) are provided with nuts (52); the connection between the screw and the large end of the T-shaped screw (7) is provided with a square boss (71), and the width of the square boss (71) is adapted to the width of the connection groove on the bottom surface of the C-shaped steel (8).

6. The assembled formwork-free building structure according to claim 1, characterized in that: The invention also includes a floor slab (9), wherein the floor slab (9) includes a steel mesh (91) and a support member (92), wherein the steel mesh (91) is connected to a steel cage or a steel column (4) on the side of a column (3) of an outer wall (2), and an inner wall panel (25) is laid below the steel mesh (91), and the inner wall panels (25) are connected and fixed by connecting strips (26) of an inverted "J"-shaped structure. The support member (92) is an inverted T-shaped structure and is arranged at intervals at the upper end of the inner wall panel (25). A bayonet (921) is provided on the vertical side of the support member (92), and the steel bars of the steel mesh (91) are bayoneted in the bayonet (921).

7. The assembled formwork-free building structure according to claim 6, characterized in that: The invention also includes a jin strip (21), wherein the jin strip (21) includes a connecting plate (211) and a fixing plate (212), wherein the connecting plate (211) has an inverted L-shaped cross-section, and the fixing plate (212) has an inverted U-shaped cross-section, and the fixing plate (212) is arranged on the inner side of the connecting plate (211), and the lower end of the connecting plate (211) is connected to the left end of the opening of the fixing plate (212), and the upper end of the connecting plate (211) and the outer wall of the fixing plate (212) form a mounting groove (213), and the inner wall panel (25) vertically arranged below the steel mesh (91) is connected through the jin strip (21), and the two ends of the same inner wall panel (25) are respectively inserted into the mounting groove (213) and the opening.

8. The assembled formwork-free building structure according to claim 1, characterized in that: It also includes an inner wall (1), the inner wall (1) including inner wall panels (25), a thermal insulation layer (23) and a tensioning assembly (5), the inner wall panels (25) being arranged at intervals by the tensioning assembly (5); the thermal insulation layer (23) being arranged in the middle of the gap between the inner wall panels (25), and having concrete (10) poured on the outer side.

9. The assembled formwork-free building structure according to claim 1, characterized in that: It also includes a wall panel splicing strip (54), wherein strip grooves are provided on the outer end surfaces of the outer wall panels (22) and the inner wall panels (25), and the wall panel splicing strip (54) is a hollow square tubular structure, and one side wall is a concave V-shaped structure, and a clamping strip (541) is provided on the outer walls on both sides of the V-shaped side wall, and the clamping strip (541) is clamped in the strip grooves on the end surfaces between adjacent outer wall panels (22) and between adjacent inner wall panels (25), and the tension screw (51) passes through the wall panel splicing strip (54) along the V-shaped side wall.

10. The assembled formwork-free building structure according to claim 1, characterized in that: The utility model further comprises a mounting member (27) and a sealing strip (28), wherein the mounting member (27) is an F-shaped structure, the mounting member (27) is connected to the base layer by screws, and the ends of the outer wall panel (22) and the inner wall panel (25) are inserted into the opening of the mounting member (27); the sealing strip (28) is a cross-shaped structure, and the upper and lower ends are respectively inserted into the strip-shaped holes between the adjacent outer wall panels (22) or the inner wall panels (25), and grooves are provided on both sides of the middle of the sealing strip (28).

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