Prefabricated stair post-cast strip construction formwork erecting device

Abstract

The utility model provides a prefabricated stair post-cast strip construction formwork erecting device. The prefabricated stair post-cast strip construction formwork erecting device comprises a bottom formwork. The prefabricated structure is erected on the surface of the bottom formwork, the prefabricated structure comprises prefabricated stairs and limiting holes, and the prefabricated stairs are erected on the edges of the two ends of the surface of the bottom formwork; the supporting scaffold is supported on the bottom surface of the bottom template; the bottom plate structure is mounted on the surface of the bottom end of the prefabricated stair; the sealing structure is mounted on the side wall of the first limiting plate; the top plate structure is mounted on the side wall of the second limiting plate; the prefabricated stair post-cast strip construction formwork erecting device has the advantages of being simple in structure, convenient to disassemble, capable of rapidly conducting pouring on a middle section stair and capable of improving construction efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to building design technical field especially relates to a prefabricated stair post-pouring belt construction formwork support device. BACKGROUND

[0002] The prefabricated stair adopts the production mode of factory prefabricated forming, saves a large amount of labor, guarantees manufacturing quality, improves manufacturing capacity and manufacturing speed, but for large-scale buildings, the size of public building stair is larger, and the weight is too heavy, tower crane cannot be hoisted, therefore, it is necessary to carry out block hoisting for prefabricated stair of smaller size and capable of completing hoisting, and post-pouring is completed.

[0003] For the case that two prefabricated stair units are placed left and right, and a section of stair is poured in the middle, usually post-pouring is carried out by using wooden board progress fixed support, the operation is complicated, and post-pouring process is easy to cause unstable support to cause stair overall size deviation, at present, there is no formed and convenient to use formwork, and the formwork is fixed together, which is not convenient for later disassembly.

[0004] Therefore, it is necessary to provide a new prefabricated stair post-pouring belt construction formwork support device to solve the above technical problems. CONTENT OF UTILITY MODEL

[0005] The utility model solves the technical problem to provide a prefabricated stair post-pouring belt construction formwork support device with simple structure, convenient to disassemble, can quickly pour the middle section stair, and can improve construction efficiency.

[0006] To solve the above technical problems, the utility model provides a prefabricated stair post pouring belt construction formwork device includes: bottom formwork, prefabricated structure, the prefabricated structure is erected on the surface of bottom formwork, the prefabricated structure includes prefabricated stair and limit hole, the prefabricated stair is erected on the edge of both ends of bottom formwork surface, the limit hole is located on the surface of both ends of prefabricated stair, and the prefabricated stair is erected between two ladder connecting platforms, support scaffold, the support scaffold is supported on the bottom surface of bottom formwork, bottom plate structure, the bottom plate structure is installed on the surface of prefabricated stair bottom end, the bottom plate structure includes lower end plate, first through slot and first limit plate, the lower end plate is placed on the surface of prefabricated stair bottom end, the first through slot is located in the side wall of both ends of lower end plate, and the first limit plate is vertically fixed on the edge of one end of lower end plate, closed structure, the closed structure is installed on the side wall of first limit plate, and the closed structure includes closing plate, first hook slot and second limit plate, the first hook slot is located in one end of closing plate, the second limit plate is located in the other end of closing plate, and the first hook slot is engaged in the side wall of first limit plate, top plate structure, the top plate structure is installed on the side wall of second limit plate, and the top plate structure includes upper end plate, second through slot, second hook slot and grouting port, the second hook slot is located in one end of upper end plate, the second through slot is located in the side wall of upper end plate, the upper end plate is engaged in the side wall of second limit plate through second hook slot, and the grouting port is located in the side wall of the other end of upper end plate.

[0007] Preferably, one end surface of the ladder connecting platform is provided with a vertical threaded steel bar, the prefabricated stair is sleeved outside the vertical threaded steel bar through the limit hole, and a fixing nut is threadedly connected with the threaded steel bar through the limit hole.

[0008] Preferably, the inner side wall of the prefabricated stair is embedded with a steel bar, and the two groups of prefabricated stairs are in an opposite state, a space between the two groups of prefabricated stairs is a post-pouring belt, and the side wall of one end of the ladder connecting platform is also embedded with a steel bar.

[0009] Preferably, the lengths of the lower end plate, the closing plate and the upper end plate are consistent, and the lower end plate, the closing plate and the upper end plate are all laid on the surface of the prefabricated stair.

[0010] Preferably, the position of the first through slot provided on the side wall of the lower end plate corresponds to the position of the limit hole provided on the lower end surface of the prefabricated stair, and the fixing nut is inserted into the limit hole through the first through slot and is threadedly connected with the threaded steel bar.

[0011] Preferably, the position of the second through slot provided on the side wall of the upper end plate corresponds to the position of the limit hole provided on the upper end surface of the prefabricated stair, and the fixing nut is inserted into the limit hole through the second through slot and is threadedly connected with the threaded steel bar.

[0012] Preferably, one end of the closing plate is connected with the lower end plate through the first hook slot, and the other end of the closing plate is connected with the upper end plate through the second limiting plate, and the height of the second limiting plate is equal to the height of the prefabricated stair step.

[0013] Compared with the related art, the prefabricated stair post-cast strip construction formwork device has the following beneficial effects:

[0014] The prefabricated stair post-cast strip construction formwork device can limit the position of the prefabricated stair through the threaded steel bars pre-buried on the ladder connecting table, so that the position of the prefabricated stair is limited to the edge positions at both ends of the ladder connecting table, and the space between the two groups of prefabricated stairs is the post-cast strip. Then, the bottom form plate is supported by the support scaffold and closed at the bottom surface of the prefabricated stair, and the bottom surface of the post-cast strip is closed. Then, the prefabricated stair, the ladder connecting table and the post-cast strip are connected through the binding connection of the steel bars pre-buried on the side wall of the prefabricated stair and the steel bars pre-buried on the side wall of the ladder connecting table and the pre-buried steel bars in the post-cast strip. Then, the bottom plate structure, the closing structure and the top plate structure are successively erected layer by layer along the steps of the prefabricated stair, and the bottom plate structure and the top plate structure are fixed to the ladder connecting table through the fixing nuts, so that the positions of the bottom plate structure, the closing structure and the top plate structure are fixed, the top surface is closed, and the post-cast strip can be poured with concrete through the grouting port. After the post-cast strip concrete solidifies, the fixing nuts on the bottom plate structure and the top plate structure are disassembled, the closing structure can be disassembled layer by layer from top to bottom, so that the concrete in the post-cast strip is completely fused with the prefabricated stair and the ladder connecting table. The device has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The prefabricated stair post-cast strip construction formwork device provided by the utility model has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency.

[0016] Figure 2 The prefabricated stair post-cast strip construction formwork device provided by the utility model has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency. Figure 1 The prefabricated stair post-cast strip construction formwork device provided by the utility model has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency.

[0017] Figure 3 The prefabricated stair post-cast strip construction formwork device provided by the utility model has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency. Figure 2 The prefabricated stair post-cast strip construction formwork device provided by the utility model has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency.

[0018] Figure 4 The prefabricated stair post-cast strip construction formwork device provided by the utility model has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency. Figure 1 The prefabricated stair post-cast strip construction formwork device provided by the utility model has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair and improved construction efficiency.

[0019] Reference numerals: 1, bottom form board, 2, prefabricated structure, 21, prefabricated stair, 22, limiting hole, 3, support scaffold, 4, bottom plate structure, 41, lower end plate, 42, first through slot, 43, first limiting plate, 5, closed structure, 51, closed plate, 52, first hook slot, 53, second limiting plate, 6, top plate structure, 61, upper end plate, 62, second through slot, 63, second hook slot, 64, grouting port, 7, ladder connecting platform, 8, fixing nut. DETAILED DESCRIPTION

[0020] The utility model will be further explained below in combination with the drawings and embodiments.

[0021] Please refer to Figures 1-4 , wherein Figure 1 The structure diagram of a preferred embodiment of the prefabricated stair post-cast strip construction formwork device provided by the utility model is shown in the figure; Figure 2 is Figure 1 The structure diagram of the formwork three-dimensional integral installation is shown in the figure; Figure 3 is Figure 2 The structure diagram of the prefabricated stair erection is shown in the figure; Figure 4 is Figure 1The structure is shown in the structure of the closed structure stereoscopic display; the prefabricated stair post-poured strip construction formwork device comprises a bottom formwork 1; a prefabricated structure 2 is arranged on the surface of the bottom formwork 1, the prefabricated structure 2 comprises a prefabricated stair 21 and a limiting hole 22, the prefabricated stair 21 is arranged on the edge of the surface of the bottom formwork 1 at both ends, the limiting hole 22 is arranged on the surface of the prefabricated stair 21 at both ends, and the prefabricated stair 21 is arranged between the upper and lower two groups of stair connecting platforms 7; a support scaffold 3 is arranged on the bottom surface of the bottom formwork 1; a bottom plate structure 4 is arranged on the surface of the bottom end of the prefabricated stair 21, the bottom plate structure 4 comprises a lower end plate 41, a first through slot 42 and a first limiting plate 43, the lower end plate 41 is arranged on the surface of the bottom end of the prefabricated stair 21, the first through slot 42 is arranged on the side wall of the lower end plate 41 at both ends, and the first limiting plate 43 is fixedly arranged on the edge of one end of the lower end plate 41; a closed structure 5 is arranged on the side wall of the first limiting plate 43, the closed structure 5 comprises a closed plate 51, a first hook slot 52 and a second limiting plate 53, the first hook slot 52 is arranged on one end of the closed plate 51, the second limiting plate 53 is arranged on the other end of the closed plate 51, and the first hook slot 52 is clamped on the side wall of the first limiting plate 43; a top plate structure 6 is arranged on the side wall of the second limiting plate 53, the top plate structure 6 comprises an upper end plate 61, a second through slot 62, a second hook slot 63 and a grouting opening 64, the second hook slot 63 is arranged on one end of the upper end plate 61, the second through slot 62 is arranged on the side wall of the upper end plate 61, the upper end plate 61 is clamped on the side wall of the second limiting plate 53 through the second hook slot 63, and the grouting opening 64 is arranged on the side wall of the other end of the upper end plate 61.

[0022] In the specific implementation process, as shown in Figure 1 , Figure 2 and Figure 3 , one end surface of the stair connecting platform 7 is provided with a vertical threaded steel bar, the prefabricated stair 21 is sleeved outside the vertical threaded steel bar through the limiting hole 22, and a fixing nut 8 is threadedly connected with the threaded steel bar through the limiting hole 22; the position of the prefabricated stair 21 is conveniently limited.

[0023] In the specific implementation process, as shown in Figure 3 , a steel bar is pre-buried in the inner side wall of the prefabricated stair 21, two groups of the prefabricated stairs 21 are in an opposite state, a space between the two groups of the prefabricated stairs 21 is a post-poured strip, and one end side wall of the stair connecting platform 7 is also provided with a pre-buried steel bar, so that the pre-buried steel bar and the steel bar in the poured post-poured strip are conveniently bound together.

[0024] In the specific implementation process, as shown in Figure 1 , Figure 2 ,Figure 3 and Figure 4 As shown in the drawings, the lengths of the lower end plate 41, the closure plate 51 and the upper end plate 61 are consistent, and the lower end plate 41, the closure plate 51 and the upper end plate 61 are laid on the surface of the prefabricated stair 21; the position of the first through groove 42 provided on the side wall of the lower end plate 41 corresponds to the position of the limiting hole 22 provided on the lower end surface of the prefabricated stair 21, and the fixing nut 8 is inserted into the limiting hole 22 through the first through groove 42 and is threadedly connected with the threaded steel bar; the position of the second through groove 62 provided on the side wall of the upper end plate 61 corresponds to the position of the limiting hole 22 provided on the upper end surface of the prefabricated stair 21, and the fixing nut 8 is inserted into the limiting hole 22 through the second through groove 62 and is threadedly connected with the threaded steel bar; one end of the closure plate 51 is clamped and connected with the lower end plate 41 through the first hook groove 52, and the other end of the closure plate 51 is clamped and connected with the upper end plate 61 through the second limiting plate 53, and the height of the second limiting plate 53 is equal to the height of the step of the prefabricated stair 21; the top surface of the post-cast strip is closed through the mutual connection between the lower end plate 41, the closure plate 51 and the upper end plate 61, and the positions of the lower end plate 41, the closure plate 51 and the upper end plate 61 are fixed under the fixation of the fixing nut 8.

[0025] The working principle of the prefabricated stair post-cast strip construction formwork device is as follows:

[0026] In use, first, by means of hoisting, the prefabricated stair 21 is hoisted and placed at the edge of the ladder connecting table 7 at both ends, and the threaded steel bar embedded at one end of the ladder connecting table 7 penetrates through both ends of the prefabricated stair 21 through the limiting hole 22, the position of the prefabricated stair 21 is limited, and the space between the prefabricated stairs 21 is the post-cast strip, then the surface of the bottom formwork 1 is smeared with a release agent, the bottom surface of the prefabricated stair 21 is supported on the bottom formwork 1, the bottom surface of the prefabricated stair 21 and the post-cast strip is closed, and the bottom formwork 1 is supported and fixed through the support scaffold 3, then the corresponding lower end plate 41, the closing plate 51 and the bottom surface of the upper end are smeared with a release agent, then the lower end plate 41 is placed horizontally on the bottom end surface of the prefabricated stair 21, the first limiting plate 43 is abutted on the sidewall of the first step at the bottom end of the prefabricated stair 21, and the position of the first through groove 42 provided on the surface of the lower end plate 41 is aligned with the position of the limiting hole 22, then the threaded steel bar is threadedly connected with the first through groove 42 and the limiting hole 22 through the fixing nut 8, the position of the lower end plate 41 is fixed, then the first hook groove 52 provided at one end of the closing plate 51 is clamped into one end sidewall of the first limiting plate 43, the closing plate 51 is horizontally laid between the surfaces of the two prefabricated stairs 21, the second limiting plate 53 is abutted on the second step of the prefabricated stair 21, then a plurality of closing plates 51 are laid along each step of the prefabricated stair 21 in a similar manner, until the last step, then the upper end plate 61 is clamped on the sidewall of the second limiting plate 53 through the second hook groove 63 provided at one end, the second through groove 62 provided on the sidewall of the upper end plate 61 is aligned with the limiting hole 22 provided at the top end of the prefabricated stair 21, and the top end of the post-cast strip is exposed with a certain opening, then the fixing nut 8 is fixed, the top end of the post-cast strip is closed under the combination of the lower end plate 41, the closing plate 51 and the upper end plate 61, and then the post-cast strip can be poured with concrete from the grouting port, the device has the advantages of simple structure, convenient disassembly, rapid pouring of the middle section stair, and improved construction efficiency.

[0027] Compared with the related art, the prefabricated stair post-cast strip construction formwork device has the following beneficial effects:

[0028] The utility model provides a prefabricated stair post-cast strip construction formwork device, first can pass the threaded steel bar of embedding on the ladder connection platform 7 to the position of prefabricated stair 21 is limited, make the position of prefabricated prefabricated stair 21 is limited the edge position of both ends of ladder connection platform 7, then the space between two groups prefabricated stair 21 is post-cast strip, then through the support scaffold 3 supports bottom formwork 1 and is closed in the bottom surface of prefabricated stair 21 to the bottom surface of post-cast strip is closed, then again through the steel bar of embedding of prefabricated stair 21 side wall and the steel bar of embedding of ladder connection platform 7 side wall and post-cast strip inside embedded steel bar is bound and connects, make prefabricated stair 21, ladder connection platform 7 and post-cast strip are connected together, then again the bottom plate structure 4, the closed structure 5 and the top plate structure 6 are in turn along the ladder of prefabricated stair 21 one layer one layer is erected, and through fixed nut 8 is with ladder connection platform 7 fixed together with bottom plate structure 4 and top plate structure 6, make the position of bottom plate structure 4, closed structure 5 and top plate structure 6 is fixed, namely the top surface of back is closed, through grouting mouth can pour concrete into post-cast strip, after post-cast strip concrete solidification, the fixed nut 8 on bottom plate structure 4 and top plate structure 6 is disassembled, can from top to bottom one layer one layer to closed structure 5 is disassembled, make the concrete in post-cast strip complete with prefabricated stair 21 and ladder connection platform 7 fusion together, this device has simple structure, convenient to disassemble, can fastly pour and grout middle section stair, can improve the advantage that construction efficiency is efficient.

[0029] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent flow conversion using the utility model specification and attached drawing contents, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A prefabricated stair post-cast strip construction formwork device, characterized in that, The utility model relates to a prefabricated building construction technology, including; Bottom template (1); Prefabricated structure (2), the prefabricated structure (2) is erected on the surface of bottom template (1), and the prefabricated structure (2) includes prefabricated stair (21) and limiting hole (22), the prefabricated stair (21) is erected on the edge of the surface both ends of bottom template (1), and the limiting hole (22) is arranged on the surface both ends of prefabricated stair (21), and the prefabricated stair (21) is erected between two piece of stair connecting platform (7) up and down; Supporting scaffold (3) is supported on the bottom surface of bottom template (1); Bottom plate structure (4) is installed on the surface of the bottom end of prefabricated stair (21), and the bottom plate structure (4) includes lower end plate (41), first through slot (42) and first limiting plate (43), the lower end plate (41) is placed on the surface of the bottom end of prefabricated stair (21), the first through slot (42) is arranged on the side wall both ends of lower end plate (41), and the first limiting plate (43) is vertically fixed on the edge of one end of lower end plate (41); Closed structure (5) is installed on the side wall of first limiting plate (43), and the closed structure (5) includes closed plate (51), first hook slot (52) and second limiting plate (53), the first hook slot (52) is arranged on one end of closed plate (51), the second limiting plate (53) is arranged on the other end of closed plate (51), and the first hook slot (52) is clamped on the side wall of first limiting plate (43); Top plate structure (6) is installed on the side wall of second limiting plate (53), and the top plate structure (6) includes upper end plate (61), second through slot (62) and second hook slot (63) and grouting opening (64), the second hook slot (63) is arranged on one end of upper end plate (61), the second through slot (62) is arranged on the side wall of upper end plate (61), the upper end plate (61) is clamped on the side wall of second limiting plate (53) through the second hook slot (63), and the grouting opening (64) is arranged on the side wall of the other end of upper end plate (61).

2. The prefabricated post-cast strip construction formwork device according to claim 1, characterized in that, One end surface of stair connecting platform (7) is provided with vertical screw thread reinforcement, and prefabricated stair (21) is sleeved outside vertical screw thread reinforcement through limiting hole (22), and fixing nut (8) is threadedly connected with screw thread reinforcement through limiting hole (22).

3. The prefabricated post-cast strip construction formwork device according to claim 1, characterized in that, The inner side wall of prefabricated stair (21) is embedded with reinforcement, and two groups of prefabricated stair (21) are in opposite state, and the space between two groups of prefabricated stair (21) is post-pouring belt, and one end side wall of stair connecting platform (7) is also embedded with reinforcement.

4. The precast stair post-cast strip construction formwork device according to claim 1, characterized in that, The length of lower end plate (41), closed plate (51) and upper end plate (61) is consistent, and lower end plate (41), closed plate (51) and upper end plate (61) are all laid on the surface of prefabricated stair (21).

5. The precast stair post-cast strip construction formwork device according to claim 2, characterized in that, The position of the first through groove (42) provided on the side wall of the lower end plate (41) corresponds to the position of the limiting hole (22) provided on the lower end surface of the prefabricated stair (21), and the fixing nut (8) is inserted into the limiting hole (22) through the first through groove (42) and is threadedly connected with the threaded steel bar.

6. The precast stair post-cast strip construction formwork device according to claim 2, characterized in that, The position of the second through groove (62) provided on the side wall of the upper end plate (61) corresponds to the position of the limiting hole (22) provided on the upper end surface of the prefabricated stair (21), and the fixing nut (8) is inserted into the limiting hole (22) through the second through groove (62) and is threadedly connected with the threaded steel bar.

7. The precast stair post-cast strip construction formwork device according to claim 1, characterized in that, One end of the closing plate (51) is clamped and connected with the lower end plate (41) through the first hook groove (52), and the other end of the closing plate (51) is clamped and connected with the upper end plate (61) through the second limiting plate (53), and the height of the second limiting plate (53) is equal to the height of the step of the prefabricated stair (21).

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