Floor slab material conveying opening construction device and construction method

Abstract

The invention discloses a construction device and method for a floor conveying opening. The device comprises an outer sleeve, an inner supporting cylinder, an upper wood ring, a middle partition block and a lower partition ring. All the surfaces of the periphery of the outer sleeve are provided with quick-easy closing-up nets which are used as forming surfaces of the material conveying openings and are used for floor reinforcing steel bars to extend into to form reserved reinforcing steel bars; the inner supporting cylinder is used for directly abutting against the reserved steel bars and indirectly providing inner supporting for all the faces of the periphery of the outer sleeve in the installation process. The upper wood ring is used for being clamped at the upper end of the outer sleeve through the tongue-and-groove in the installation process, transferring inner supporting force from the upper end of the inner supporting barrel to the upper end of the outer sleeve and forming an installation point for a temporary sealing cover of the material conveying opening. The middle partition block is used for transmitting inner supporting force from the middle of the inner supporting cylinder to the middle of the outer sleeve during installation. The lower distance ring is used for transmitting inner supporting force from the lower end of the inner supporting cylinder to the lower end of the outer sleeve during installation. According to the device, the chiseling procedure is avoided, the labor cost is greatly reduced, the material conveying opening can be temporarily closed and protected without damaging a floor slab, enough inner support can be provided, and slurry leakage is avoided.

Description

Technical Field

[0001] The invention relates to floor slab construction, and in particular to a floor slab material transfer port construction device and a construction method. Background Art

[0002] During the construction of the main structure of a building, a material transfer port is usually reserved on the floor slab for the convenience of construction. At present, when the material transfer port is formed by pouring the floor slab, the size of the material transfer port is generally enclosed by a four-sided template and set at the designed position of the material transfer port, so that the material transfer port can be formed after pouring. Although this forming method is simple, it has the following three problems: First, after the building is topped off, the material transfer port needs to be blocked. At this time, the concrete around the material transfer port on the floor slab needs to be chiseled out to expose the floor slab steel bars to obtain the reserved steel bars. Only then can the material transfer port steel bars be connected to the reserved steel bars before pouring can be carried out. The required chiseling is large and the labor cost is high.

[0003] Second, after the material transfer port is used and before the building is topped off, the material transfer port needs to be temporarily closed and protected. Since there are no fixed points around the floor slab, the closed protective parts need to be fixed on the floor slab, which will damage the floor slab. If the closed protective parts are not fixed, they are easy to move at will, causing safety hazards.

[0004] Third, the bottom support of the four-sided templates of the material transfer port is insufficient, which makes it easy to leak slurry and results in poor molding quality. Summary of the invention

[0005] The object of the present invention is to provide a floor slab material transfer port construction device and a floor slab material transfer port construction method based on the above-mentioned construction device. The device avoids the chiseling process and greatly reduces labor costs. The material transfer port can be temporarily closed and protected without destroying the floor slab, and sufficient internal support can be provided to avoid leakage of slurry.

[0006] The technical solution adopted by the present invention is: A construction device for a floor material transfer port, comprising an outer sleeve, an inner support sleeve, an upper wooden ring, a middle spacer block, and a lower spacer ring; the size of the outer sleeve matches the size of the material transfer port, and all four sides thereof are provided with a quick-closing net, which is used as a forming surface of the material transfer port and for the floor steel bars to extend into to form reserved steel bars; the size of the inner support sleeve matches the size formed by the ends of the reserved steel bars, and is used to directly butt against the reserved steel bars on all four sides during installation and indirectly provide internal support for all four sides of the outer sleeve; the upper wooden ring is made of wood, is annular, and is fixed along the outer periphery of the upper end of the inner support sleeve. The size of the outer edge is larger than that of the outer sleeve and a tongue and groove is provided at the lower end of the outer edge, which is used to be clamped on the upper end of the outer sleeve through the tongue and groove during installation to transfer the internal support force from the upper end of the inner support tube to the upper end of the outer sleeve and to form an installation point for temporarily sealing the material transfer port; the width of the middle spacer block is the length of the reserved steel bars, which are distributed and fixed on the outside of the middle part of each surface around the inner support tube, and are used to transfer the internal support force from the middle part of the inner support tube to the middle part of the outer sleeve during installation; the lower spacer ring is annular and independent of other components, and its width is the length of the reserved steel bars, which is used to transfer the internal support force from the lower end of the inner support tube to the lower end of the outer sleeve during installation.

[0007] A floor material transfer port construction method is based on the above-mentioned floor material transfer port construction device, and adopts the following steps: S1) Install the floor bottom formwork support, floor bottom formwork and floor slab reinforcement. Both the floor bottom formwork and floor slab reinforcement are provided with openings at the material transfer port. The opening of the floor bottom formwork matches the size of the material transfer port. The opening size of the floor slab reinforcement is the size enclosed by the reserved reinforcement end. S2) Install the construction device for the floor material transfer port: first install the outer sleeve, so that the quick closing nets on all sides of the outer sleeve are used for the floor steel bars to extend into to form reserved steel bars, and the lower end is supported on the floor bottom formwork support and against the inner wall of the floor bottom formwork opening; then install the lower spacer ring, which is supported on the floor bottom formwork support and against the inner wall of the lower end of the outer sleeve; then install the inner support tube, which is supported on the floor bottom formwork support and against the reserved steel bars on all sides, with the lower end of the inner support tube against the inner wall of the lower spacer ring, the middle part against the inner wall of the outer sleeve through the middle spacer block, and the upper end is placed on the upper end of the outer sleeve through the tongue and groove clamp of the upper wooden ring; S3) pouring floor slab concrete; S4) After the material transfer port is used and before the building is capped, the material transfer port is temporarily sealed for protection: the upper wooden ring is used as the installation point, and the temporary cover of the material transfer port is installed on the upper wooden ring; S5) After the building is capped, seal the material transfer port: remove the temporary cover, inner support tube, upper wooden ring, middle partition block and lower partition ring of the material transfer port, install the material transfer port bottom formwork support and the material transfer port bottom formwork, connect the material transfer port steel bars with the reserved steel bars; then pour the material transfer port concrete.

[0008] Preferably, the floor slab bottom formwork support and the material transfer port bottom formwork support both use a support frame, a top support, a main keel, and a secondary keel that are sequentially arranged from bottom to top.

[0009] Preferably, in step S2), a rubber sealing strip is provided at the outer positive corner of the lower end of the outer sleeve, and the lower end of the outer sleeve is sealed with the inner wall of the floor bottom mold opening through the rubber sealing strip; a rubber sealing strip is provided at the inner positive corner of the upper end of the outer sleeve, and the upper end of the outer sleeve is sealed with the tongue and groove of the upper wooden ring through the rubber sealing strip.

[0010] Preferably, in step S4), the temporary cover of the material transfer port is fixed to the upper wooden ring by rivets.

[0011] Preferably, in step S5), when removing the upper wood ring, ensure that no wood chips are left in the casting range of the material transfer port.

[0012] Preferably, in step S5), when removing the temporary cover of the material transfer port, the inner support cylinder, the upper wooden ring, the middle spacer block and the lower spacer ring, ensure that there are no operators below the material transfer port.

[0013] Preferably, in step S5), before pouring the concrete of the material transfer port, an interface agent is brushed on the molding surface of the material transfer port, and the interface agent is a cement slurry mixed with waterproof powder.

[0014] Preferably, in step S5), when pouring the concrete of the material transfer port, slightly expanded fine stone concrete of the same grade or higher grade as the floor slab is used.

[0015] Preferably, in step S5), after pouring the transfer port concrete, curing to the designed strength, and removing the transfer port bottom formwork, a cement-based penetrating crystalline waterproof coating is used to paint the interface between the transfer port concrete and the floor slab concrete.

[0016] The beneficial effects of the present invention are: In the device, the quick-and-easy closing nets on the surrounding surfaces of the outer sleeve are used to allow the floor slab steel bars to extend into and form reserved steel bars. The quick-and-easy closing nets themselves serve as the forming surface of the material transfer port. Therefore, after the floor slab is poured, there is no need to chisel the concrete around the material transfer port, thus avoiding the chiseling process and greatly reducing labor costs. In the device, the upper wooden ring can be used as the installation point for the temporary cover of the material transfer port, so the material transfer port can be temporarily closed and protected without destroying the floor slab. In the device, the inner support tube, the upper wooden ring, the middle spacer block and the lower spacer ring can provide sufficient inner support for the upper, middle and lower parts of the outer sleeve to avoid leakage, and can also ensure the length of the reserved steel bars to avoid displacement of the outer sleeve during the pouring of the floor slab concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation of the floor material transfer port construction device, in which the outer sleeve shows a simplified structure.

[0018] Figure 2 yes Figure 1The top view of the structure is omitted for easy observation, with the upper wooden ring, lower spacer ring, floor bottom formwork support and floor bottom formwork omitted. Only the relationship between the floor reinforcement, outer sleeve, inner support tube and middle spacer block is shown. The outer sleeve in the figure shows a simplified structure.

[0019] Figure 3 It is a schematic diagram of the outer sleeve and the inner support tube. In the figure, a is the position of the reserved steel bars, and the outer sleeve shows a simplified structure.

[0020] Figure 4 It is a schematic diagram of temporarily closing and protecting the material transfer port after the floor material transfer port construction device is installed. The outer sleeve in the figure shows a simplified structure.

[0021] Figure 5 It is a schematic diagram of the material transfer port after the temporary cover, inner support cylinder, upper wooden ring, middle spacer block and lower spacer ring are removed and before the concrete of the material transfer port is poured.

[0022] Figure 6 This is a schematic diagram after pouring concrete at the material transfer port.

[0023] In the figure: 1-outer sleeve; 2-upper wooden ring; 3-rubber sealing strip; 4-inner support tube; 5-middle spacer block; 6-lower spacer ring; 7-floor reinforcement; 8-reserved reinforcement; 9-floor bottom formwork; 10-secondary keel; 11-main keel; 12-top support; 13-support frame; 14-temporary cover of feed port; 15-floor concrete; 16-feed port reinforcement; 17-interface agent; 18-feed port bottom formwork; 19-feed port concrete; 20-cement-based penetrating crystallization waterproof coating. DETAILED DESCRIPTION

[0024] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1 This embodiment discloses a floor material transfer port construction device, such as Figures 1 to 4 As shown, it includes an outer sleeve 1, an inner support sleeve 4, an upper wooden ring 2, a middle spacer block 5, and a lower spacer ring 6; wherein: The size of the outer sleeve 1 matches the size of the material transfer port, and the surrounding surfaces are all made of quick-closing nets, which are used as the forming surface of the material transfer port and for the floor slab steel bars 7 to extend into to form reserved steel bars 8. Figures 1 to 4 ; The size of the inner support tube 4 matches the size of the end of the reserved steel bar 8. It is used to directly support the reserved steel bar 8 on all sides during installation and indirectly provide inner support for all sides of the outer sleeve 1. Figures 1 to 4 ; The upper wooden ring 2 is made of wood, which is annular and fixed along the outer periphery of the upper end of the inner support tube 4. Its outer edge size is larger than the outer sleeve 1 and a tongue is provided at the lower end of the outer edge. It is used to be placed on the upper end of the outer sleeve 1 through the tongue during installation to transmit the inner support force from the upper end of the inner support tube 4 to the upper end of the outer sleeve 1 and form the installation point of the temporary cover 14 of the material transfer port. Figure 1 and Figure 4 ; The width of the middle spacer block 5 is the length of the reserved steel bar 8, which is distributed and fixed on the outside of the middle of each surface around the inner support tube 4. It is used to transfer the inner support force from the middle of the inner support tube 4 to the middle of the outer sleeve 1 during installation. Figure 1 , Figure 2 and Figure 4 ; The lower spacer ring 6 is annular and independent of other components. Its width is the length of the reserved steel bar 8. It is used to transfer the inner support force from the lower end of the inner support tube 4 to the lower end of the outer sleeve 1 during installation. Figure 1 and Figure 4 .

[0026] Embodiment 2 This embodiment discloses a floor material transfer port construction method, which is based on the above-mentioned floor material transfer port construction device and adopts the following steps: S1) Figure 1 and Figure 2 As shown, the floor bottom formwork support, the floor bottom formwork 9 and the floor reinforcement 7 are installed. The floor bottom formwork 9 and the floor reinforcement 7 are both provided with openings at the material transfer port. The opening of the floor bottom formwork 9 matches the size of the material transfer port. The opening size of the floor reinforcement 7 is the size enclosed by the ends of the reserved reinforcement 8.

[0027] S2) Figure 1 and Figure 2 As shown, the construction device for the floor material transfer port is installed: first install the outer sleeve 1, so that the quick closing nets on all sides of the outer sleeve 1 are used for the floor reinforcement 7 to extend into to form the reserved reinforcement 8, and the lower end is supported on the floor bottom formwork support and against the inner wall of the floor bottom formwork 9 opening; then install the lower spacer ring 6, the lower spacer ring 6 is supported on the floor bottom formwork support and against the inner wall of the lower end of the outer sleeve 1; then install the inner support tube 4, the inner support tube 4 is supported on the floor bottom formwork support and all sides are against the reserved reinforcement 8, the lower end of the inner support tube 4 is against the inner wall of the lower spacer ring 6, the middle part is against the inner wall of the outer sleeve 1 through the middle spacer block 5, and the upper end is placed on the upper end of the outer sleeve 1 through the tongue and groove of the upper wooden ring 2. In order to avoid leakage of mortar at the joints during the pouring of the floor slab concrete 15, as shown in FIG. Figure 1 As shown, a rubber sealing strip 3 is provided at the outer positive corner of the lower end of the outer sleeve 1, and the lower end of the outer sleeve 1 is sealed with the inner wall of the opening of the floor bottom mold 9 through the rubber sealing strip 3. A rubber sealing strip 3 is provided at the inner positive corner of the upper end of the outer sleeve 1, and the upper end of the outer sleeve 1 is sealed with the tongue and groove of the upper wooden ring 2 through the rubber sealing strip 3.

[0028] S3) Pour floor slab concrete 15.

[0029] S4) Figure 4 As shown, after the material transfer port is used and before the building is capped, the material transfer port is temporarily closed for protection: the upper wooden ring 2 is used as the installation point, and the temporary cover 14 of the material transfer port is installed on the upper wooden ring 2. In order to facilitate disassembly, as shown in FIG. Figure 4 As shown, the temporary cover 14 of the material transfer port can be fixed on the upper wooden ring 2 by rivets.

[0030] S5) Figure 5 and Figure 6 As shown, after the building is capped, the material transfer port is blocked: the temporary cover 14 of the material transfer port, the inner support tube 4, the upper wooden ring 2, the middle partition block 5 and the lower partition ring 6 are removed. When the upper wooden ring 2 is removed, it is ensured that no wood chips are left in the pouring range of the material transfer port. When the temporary cover 14 of the material transfer port, the inner support tube 4, the upper wooden ring 2, the middle partition block 5 and the lower partition ring 6 are removed, it is ensured that there are no workers under the material transfer port; the material transfer port bottom mold support and the material transfer port bottom mold 18 are installed, and the material transfer port steel bars 16 are connected with the reserved steel bars 8. connection; before pouring the transfer port concrete 19, brush the interface agent 17 on the forming surface of the transfer port, and the interface agent 17 uses cement slurry mixed with waterproof powder; when pouring the transfer port concrete 19, use micro-expansion fine stone concrete of the same grade or higher than the floor slab; after pouring the transfer port concrete 19, curing to the design strength, and removing the transfer port bottom mold 18, use cement-based penetrating crystallization waterproof coating 20 to paint the interface between the transfer port concrete 19 and the floor slab concrete 15. Applying the interface agent 17 before pouring, using micro-expansion fine stone concrete during pouring, and applying the cement-based penetrating crystallization waterproof coating 20 after pouring can form a stable and reasonable internal and external waterproof structure as a whole to avoid leakage.

[0031] like Figure 1 , Figures 4 to 6 As shown, the floor bottom formwork support and the material transfer port bottom formwork support both use a support frame 13, a top support 12, a main keel 11, and a secondary keel 10 which are arranged in sequence from bottom to top.

[0032] In the device, the quick-closing nets on the four sides of the outer sleeve 1 are used for the floor slab steel bars 7 to extend into to form reserved steel bars 8. The quick-closing nets themselves serve as the forming surface of the material transfer port. Therefore, after the floor slab is poured, there is no need to chisel the concrete around the material transfer port, thus avoiding the chiseling process and greatly reducing labor costs. In the device, the upper wooden ring 2 can be used as the installation point of the temporary cover 14 of the material transfer port, and the material transfer port can be temporarily closed and protected without destroying the floor slab. In the device, the inner support tube 4, the upper wooden ring 2, the middle spacer block 5 and the lower spacer ring 6 can provide sufficient inner support for the upper, middle and lower parts of the outer sleeve 1 to avoid leakage, and can also ensure the length of the reserved steel bars 8 to avoid the displacement of the outer sleeve 1 during the pouring of the floor slab concrete 15. In the device, the middle spacer block 5 is installed in a distributed manner, so that it can avoid the reserved steel bars 8 when installed together with the inner support tube 4. The lower spacer ring 6 is independent, which is easy to install independently and avoids interference with the reserved steel bars 8 when installed together with the inner support tube 4.

[0033] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A floor material transfer port construction device, characterized in that: It includes an outer sleeve, an inner support sleeve, an upper wooden ring, a middle spacer block, and a lower spacer ring; the size of the outer sleeve matches the size of the material transfer port, and all the surrounding surfaces thereof adopt a quick-closing net, which is used as the forming surface of the material transfer port and for the floor slab steel bars to extend into to form reserved steel bars; the size of the inner support sleeve matches the size formed by the ends of the reserved steel bars, and is used to directly butt against the reserved steel bars on all the surrounding surfaces during installation and indirectly provide internal support for all the surrounding surfaces of the outer sleeve; the upper wooden ring is made of wood, is ring-shaped, and is fixed along the outer periphery of the upper end of the inner support sleeve, and its outer edge size is greater than The outer sleeve has a tongue and groove at the lower end of the outer edge, which is used to be placed on the upper end of the outer sleeve through the tongue and groove during installation to transfer the internal support force from the upper end of the inner support tube to the upper end of the outer sleeve and form an installation point for temporarily sealing the material transfer port; the width of the middle spacer block is the length of the reserved steel bars, which are distributed and fixed on the outside of the middle part of each surface around the inner support tube, and are used to transfer the internal support force from the middle part of the inner support tube to the middle part of the outer sleeve during installation; the lower spacer ring is annular and independent of other components, and its width is the length of the reserved steel bars, which is used to transfer the internal support force from the lower end of the inner support tube to the lower end of the outer sleeve during installation.

2. A floor material transfer port construction method, characterized in that: Based on the floor material transfer port construction device as claimed in claim 1, the following steps are adopted: S1) Install the floor bottom formwork support, floor bottom formwork and floor slab reinforcement. Both the floor bottom formwork and floor slab reinforcement are provided with openings at the material transfer port. The opening of the floor bottom formwork matches the size of the material transfer port. The opening size of the floor slab reinforcement is the size enclosed by the reserved reinforcement end. S2) Install the construction device for the floor material transfer port: first install the outer sleeve, so that the quick closing nets on all sides of the outer sleeve are used for the floor steel bars to extend into to form reserved steel bars, and the lower end is supported on the floor bottom formwork support and against the inner wall of the floor bottom formwork opening; then install the lower spacer ring, which is supported on the floor bottom formwork support and against the inner wall of the lower end of the outer sleeve; then install the inner support tube, which is supported on the floor bottom formwork support and against the reserved steel bars on all sides, with the lower end of the inner support tube against the inner wall of the lower spacer ring, the middle part against the inner wall of the outer sleeve through the middle spacer block, and the upper end is placed on the upper end of the outer sleeve through the tongue and groove clamp of the upper wooden ring; S3) pouring floor slab concrete; S4) After the material transfer port is used and before the building is capped, the material transfer port is temporarily sealed for protection: the upper wooden ring is used as the installation point, and the temporary cover of the material transfer port is installed on the upper wooden ring; S5) After the building is capped, seal the material transfer port: remove the temporary cover, inner support tube, upper wooden ring, middle partition block and lower partition ring of the material transfer port, install the material transfer port bottom formwork support and the material transfer port bottom formwork, connect the material transfer port steel bars with the reserved steel bars; then pour the material transfer port concrete.

3. The floor material transfer port construction method according to claim 2, characterized in that: The floor slab bottom formwork support and the material transfer port bottom formwork support both use a support frame, a top support, a main keel, and a secondary keel which are arranged in sequence from bottom to top.

4. The floor material transfer port construction method according to claim 2, characterized in that: In step S2), a rubber sealing strip is provided at the outer positive corner of the lower end of the outer sleeve, and the lower end of the outer sleeve is sealed with the inner wall of the floor bottom mold opening through the rubber sealing strip; a rubber sealing strip is provided at the inner positive corner of the upper end of the outer sleeve, and the upper end of the outer sleeve is sealed with the tongue and groove of the upper wooden ring through the rubber sealing strip.

5. The floor material transfer port construction method according to claim 2, characterized in that: In step S4), the temporary cover of the material transfer port is fixed to the upper wooden ring by rivets.

6. The floor material transfer port construction method according to claim 2, characterized in that: In step S5), when removing the upper wood ring, ensure that no wood chips are left in the casting range of the material transfer port.

7. The floor material transfer port construction method according to claim 2, characterized in that: In step S5), when removing the temporary cover of the material transfer port, the inner support cylinder, the upper wooden ring, the middle spacer block and the lower spacer ring, ensure that there are no operators below the material transfer port.

8. The floor material transfer port construction method according to claim 2, characterized in that: In step S5), before pouring the concrete of the material transfer port, an interface agent is applied on the molding surface of the material transfer port. The interface agent is a cement slurry mixed with waterproof powder.

9. The floor material transfer port construction method according to claim 2, characterized in that: In step S5), when pouring the concrete of the material transfer port, slightly expanded fine stone concrete of the same grade or higher grade as the floor slab is used.

10. The floor material transfer port construction method according to claim 2, characterized in that: In step S5), after pouring the transfer port concrete, curing to the designed strength, and removing the transfer port bottom formwork, a cement-based penetrating crystalline waterproof coating is used to paint the interface between the transfer port concrete and the floor slab concrete.

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