Early removal system with reserved opening for external wall free-form external template and early removal method thereof

Abstract

The application discloses a reserved port early-dismantling system and method for an outer wall free-dismantling outer formwork, an inner surface and an outer surface of a to-be-poured outer wall are respectively provided with a free-dismantling inner formwork and a free-dismantling outer formwork, a reserved port for installing a climbing frame fastener is through-opened on the free-dismantling outer formwork along a thickness direction, and the early-dismantling system comprises a blocking piece embedded in the reserved port, a bottom plate matched with the reserved port, a side plate connected with the bottom plate and surrounding an inner wall of the reserved port, a plurality of limiting baffle plates arranged around the reserved port, one end of each limiting baffle plate being connected with the side plate and the other end being arranged on a surface of the free-dismantling outer formwork, and a back brace assembly for limiting the blocking piece, the back brace assembly being connected to opposite outer sides of the free-dismantling outer formwork and the free-dismantling inner formwork, and the construction efficiency is improved by arranging the early-dismantling system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and in particular to a reserved opening early removal system for an external wall non-removal external formwork and an early removal method thereof. BACKGROUND

[0002] At present, a prefabricated composite thermal insulation non-removal formwork is used for a full cast-in-place external wall, which has a thermal insulation function and a non-removal formwork function, and is referred to as a prefabricated non-removal formwork. The prefabricated non-removal formwork is an integrated system of building thermal insulation and structure. The application of the material not only saves the construction period, but also saves the investment of the external wall formwork.

[0003] When a high-rise building is constructed, a climbing frame needs to be arranged around the building. The climbing frame needs to fix a climbing frame embedded part in a concrete structure to ensure the stability of the connection. Therefore, in the traditional construction method, after the concrete pouring and curing are completed, cutting and opening need to be performed on the prefabricated non-removal formwork until the concrete surface of the structure is exposed to provide installation for the climbing frame embedded part. This method needs to remove the reinforcing system on the prefabricated non-removal formwork before opening, which is low in construction efficiency. At the same time, the prefabricated non-removal formwork after cutting has no secondary utilization value, which affects the construction cost. SUMMARY

[0004] The present application aims to overcome the defects of the prior art and provide a reserved opening early removal system for an external wall non-removal external formwork and an early removal method thereof. When the installation of the climbing frame embedded part is needed, the plugging part in the reserved opening can be quickly removed and the concrete surface is exposed, thereby avoiding cutting of the non-removal external formwork to affect the subsequent turnover use.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is a reserved opening early removal system for an external wall non-removal external formwork. The inner and outer surfaces of a to-be-poured external wall are respectively provided with a non-removal inner formwork and a non-removal external formwork. A reserved opening for installation of a climbing frame fastener is provided on the non-removal external formwork along the thickness direction. The early removal system comprises:

[0006] A plugging part embedded in the reserved opening, the plugging part comprising:

[0007] A bottom plate embedded in the bottom of the reserved opening, the bottom plate being matched with the reserved opening;

[0008] A side plate surrounding the inner wall of the reserved opening, the side plate being connected with the bottom plate, and the height of the side plate being equal to the depth of the reserved opening;

[0009] A plurality of limiting baffle plates are arranged along the periphery of the reserved opening. One end of each limiting baffle plate is connected with the side plate, and the other end is arranged on the surface of the non-removal external formwork;

[0010] A backrest assembly for limiting the plugging piece, the backrest assembly comprises a first backrest for blocking on the surface of the removable outer formwork and across the reserved opening, and a second backrest for blocking on the surface of the removable inner formwork and corresponding to the first backrest, and the first backrest and the second backrest are connected by a pair of tension bolts.

[0011] The early removal system for the reserved opening of the outer wall removable outer formwork is further improved, the plugging piece is spliced by a plurality of plugging units, each of the plugging units comprises:

[0012] A plurality of bottom plate units are spliced to form the bottom plate when the plurality of plugging units are spliced.

[0013] A plurality of side plate units are located on the top of the bottom plate unit and surround the outer periphery of the bottom plate unit, the height of the side plate unit is equal to the depth of the reserved opening, and the adjacent side plate units of adjacent plugging units are abutted and detachably connected by a connecting piece when the plurality of plugging units are spliced, and the plurality of side plate units abutted to the inner wall of the reserved opening are spliced to form the side plate.

[0014] The early removal system for the reserved opening of the outer wall removable outer formwork is further improved, the connecting piece is a limiting bolt, and a plug hole is formed on the adjacent side plate units of adjacent plugging units for inserting the limiting bolt.

[0015] The early removal system for the reserved opening of the outer wall removable outer formwork is further improved, the pair of tension bolts comprises two first pairs of tension bolts, and the two first pairs of tension bolts are respectively arranged on opposite sides of the reserved opening and are respectively tensioned between two end portions of the first backrest and the second backrest.

[0016] The early removal system for the reserved opening of the outer wall removable outer formwork is further improved, the first backrest comprises two backrest units that are detachably connected, one end of the two backrest units away from the connected end extends to opposite sides of the reserved opening and is respectively connected by the two first pairs of tension bolts, and the two backrest units can rotate around the corresponding first pair of tension bolts in a non-connected state.

[0017] The early removal system for the reserved opening of the outer wall removable outer formwork is further improved, the number of the backrest assemblies is a plurality, and the plurality of backrest assemblies are arranged at intervals in the range of the reserved opening.

[0018] An early removal method for a reserved opening of an outer wall removable outer formwork, comprising the steps of:

[0019] Step 1: providing the early removal system for the reserved opening of the outer wall removable outer formwork for formwork pouring of the outer wall.

[0020] Step 2: after the outer wall maintenance is completed, the first back bar is removed;

[0021] Step 3: the blocking piece is removed as a whole and the surface of the outer wall for the installation of the climbing frame embedded part is exposed.

[0022] The early removal method for the reserved opening of the outer wall non-removable external formwork further improves that the first back bar comprises two back bar units that are detachably connected, one end of the two back bar units away from the connected end extends to the opposite sides of the reserved opening and is connected by two first pull bolts respectively, and the two back bar units can rotate around the corresponding first pull bolt when not connected.

[0023] When step 2 is performed, the connection between the connected ends of the two back bar units is released, and the two back bar units are rotated around the corresponding first pull bolt respectively until the two back bar units do not block the reserved opening.

[0024] Compared with the prior art, the advantages of the present application are that:

[0025] 1. By setting the reserved opening and the matching blocking piece, the blocking effect of the non-removable external formwork is ensured during concrete pouring, and the blocking piece can be directly removed during subsequent installation of the climbing frame embedded part, without the need to cut the non-removable external formwork, which facilitates the turnover use of the non-removable external formwork and saves costs.

[0026] 2. By setting the blocking piece as a plurality of blocking units, the use of the blocking units can be increased or reduced according to the size of the reserved opening to adapt to the size of the reserved opening, improving the practicability. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Fig. 1 It is a front view of the use state of the early removal system for the reserved opening of the outer wall non-removable external formwork.

[0029] Fig. 2 It is a structure split view of the early removal system for the reserved opening of the outer wall non-removable external formwork.

[0030] Fig. 3 It is a side view of the use state of the early removal system for the reserved opening of the outer wall non-removable external formwork.

[0031] In the diagram: 1. Removable outer formwork; 2. Base plate unit; 3. Side plate unit; 4. Limiting baffle; 5. Limiting pin; 6. First back rib; 601. Back rib unit; 602. Connecting plate; 7. Tie bolt assembly; 701. First tie bolt; 702. Second tie bolt; 8. Removable inner formwork; 9. Second back rib; 10. Exterior wall. Detailed Implementation

[0032] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0033] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed explanation of the pre-removal system and method for pre-removed openings in exterior wall formwork.

[0034] Please see Figs. 1-3 As shown, the early stripping system for the pre-reserved opening of the exterior wall formwork is used. The inner and outer surfaces of the exterior wall 10 to be poured are respectively provided with a pre-reserved opening 8 for the installation of the climbing scaffold fasteners. The early stripping system includes:

[0035] A sealing element for being embedded in the reserved opening, the sealing element comprising:

[0036] A base plate for embedding in the bottom of the reserved opening, the base plate being adapted to the reserved opening;

[0037] A side plate is installed along the inner wall of the reserved opening, the side plate is connected to the bottom plate, and the height of the side plate is equal to the depth of the reserved opening;

[0038] Multiple limiting baffles 4 are spaced around the reserved opening. One end of each limiting baffle 4 is connected to the side plate, and the other end is attached to the surface of the non-removable outer template 1.

[0039] The back rib assembly for limiting the sealing component includes a first back rib 6 for blocking the surface of the non-removable outer template 1 and spanning the reserved opening, and a second back rib 9 for blocking the surface of the non-removable inner template 8 and corresponding to the first back rib 6. The first back rib 6 and the second back rib 9 are connected by a tie bolt group 7.

[0040] By setting the limiting baffle 4, when installing the sealing component, the limiting baffle 4 only needs to be placed on the surface of the non-removable outer formwork 1 to restrict the bottom surface of the base plate from being flush with the relative inner side of the non-removable outer formwork 1, thus ensuring the pouring quality of the outer wall 10.

[0041] Specifically, the bottom surface of the bottom plate is provided with a Teflon coating.

[0042] By providing the Teflon coating on the bottom surface of the bottom plate, the adhesion between the bottom plate and the concrete of the outer wall 10 is reduced, facilitating the demolding of the blocking piece.

[0043] Specifically, in the connected state of the first back brace 6, the first back brace 6 is pressed on the limiting baffle 4.

[0044] By pressing the first back brace 6 on the limiting baffle 4, the connection effect of the blocking piece is improved.

[0045] Preferably, the blocking piece is composed of a plurality of blocking units, each of which comprises:

[0046] a bottom plate unit 2, when the plurality of blocking units are spliced, the plurality of bottom plate units 2 are spliced to form the bottom plate;

[0047] a plurality of side plate units 3, the plurality of side plate units 3 are located at the top of the bottom plate unit 2 and surround the outer periphery of the bottom plate unit 2, the height of the side plate unit 3 is equal to the depth of the reserved opening, when the plurality of blocking units are spliced, the adjacent side plate units 3 of adjacent blocking units are abutted against each other and detachably connected by a connecting piece, and the plurality of side plate units 3 abutted against the inner wall of the reserved opening are spliced to form the side plate.

[0048] By setting the blocking piece as a plurality of blocking units, the use of the blocking units can be increased or decreased according to the size of the reserved opening to adapt to the size of the reserved opening, meeting the blocking requirements of reserved openings of various sizes and improving the practicality.

[0049] Preferably, the connecting piece is a limiting latch 5, and the adjacent side plate units 3 of adjacent blocking units are each provided with a insertion hole for inserting the limiting latch 5.

[0050] By providing the limiting latch 5, it is convenient to quickly connect the plurality of blocking units to form a whole, improving the installation and disassembly efficiency.

[0051] Preferably, the pair of tension bolts 7 comprises two first pairs of tension bolts 701, and the two first pairs of tension bolts 701 are respectively arranged on opposite sides of the reserved opening and are respectively tensioned between two end portions of the first back brace 6 and the second back brace 9.

[0052] Preferably, the first back brace 6 comprises two back brace units 601 that are detachably connected, one end of the two back brace units 601 away from the connected end extends to opposite sides of the reserved opening and is respectively connected by the two first pairs of tension bolts 701, and the two back brace units 601 can rotate around the corresponding first pair of tension bolts 701 in a non-connected state.

[0053] Specifically, the pair of pull bolts 7 further comprises a second pair of pull bolts 702, which are connected between the second ends of the two backrest units 601 through a connecting plate 602, and in the connected state of the second ends of the two backrest units 601, the second ends of the two backrest units 601 are spaced apart and located on the reserved opening, the connecting plate 602 spans the gap between the two backrest units 601 and the two ends are respectively arranged on the second ends of the two backrest units 601, and the second pair of pull bolts 702 are connected between the connecting plate 602 and the second backrest 9, and the second pair of pull bolts 702 pass through the gap between the two backrest units 601.

[0054] By arranging the first backrest 6 as two backrest units 601 and connecting the connecting plate 602 and the second pair of pull bolts 702, when the first backrest 6 needs to be removed, only the connecting plate 602 needs to be removed and the two backrest units 601 are rotated, so that the first backrest 6 is removed from the blocking of the blocking member, thereby improving the construction efficiency.

[0055] Preferably, the number of backrest assemblies is multiple, and the multiple backrest assemblies are spaced apart in the range of the reserved opening.

[0056] By arranging multiple backrest assemblies, the positioning effect on the blocking member is improved.

[0057] A reserved opening early removal method for an external wall non-removable external formwork, comprising the steps of:

[0058] Step 1: providing the above-mentioned reserved opening early removal system for the external wall non-removable external formwork to support and pour the external wall 10;

[0059] Step 2: after the maintenance of the external wall 10 is completed, the first backrest 6 is removed;

[0060] Step 3: the blocking member is removed as a whole and the surface of the external wall 10 for installing the climbing frame embedded part is exposed.

[0061] Preferably, the first backrest 6 comprises two detachable backrest units 601, one end of the two backrest units 601 away from the butt joint end extends to the opposite sides of the reserved opening and is connected by the first pair of pull bolts 701, and the two backrest units 601 can be rotated around the first pair of pull bolts 701 in the non-butted state.

[0062] In the execution of the above-mentioned step 2, the connection between the butt joint ends of the two backrest units 601 is removed, and the two backrest units 601 are rotated around the first pair of pull bolts 701 respectively until the two backrest units 601 do not block the reserved opening.

[0063] Specifically, after the climbing frame continues to climb upward, a thermal formwork matching the size of the reserved opening is provided and connected in the reserved opening.

[0064] When installing the thermal formwork, only the thermal formwork is embedded in the reserved opening and the two back nailing units 601 are blocked on the surface of the thermal formwork, and the second end of the two back nailing units 601 is connected.

[0065] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of understanding and clearness of description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementation of the present application.

[0066] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment, without departing from the technical content of the present application, are still within the scope of the technical solution of the present application.

Claims

1. A preformed opening early removal system for a removable external formwork of an external wall, characterized in that, The inner and outer surfaces of the outer wall to be poured are respectively provided with a removable inner formwork and a removable outer formwork, the removable outer formwork is provided with a reserved opening for installing a climbing frame fastener along the thickness direction, and the early removal system comprises: a blocking piece embedded in the reserved opening, the blocking piece comprises: a bottom plate embedded in the bottom of the reserved opening, the bottom plate is matched with the reserved opening; a side plate surrounding the inner wall of the reserved opening, the side plate is connected with the bottom plate, and the height of the side plate is equal to the depth of the reserved opening; a plurality of limiting baffle plates are arranged around the reserved opening, one end of each limiting baffle plate is connected with the side plate, and the other end is arranged on the surface of the removable outer formwork; a backrest assembly for limiting the blocking piece, the backrest assembly comprises a first backrest for blocking on the surface of the removable outer formwork and across the reserved opening, and a second backrest for blocking on the surface of the removable inner formwork and corresponding to the first backrest, and the first backrest and the second backrest are connected by a pair of tension bolts.

2. The reserved opening early removal system for the external wall free external formwork according to claim 1, characterized in that, The blocking piece is composed of a plurality of blocking units, each of which comprises: a bottom plate unit, when a plurality of blocking units are spliced, a plurality of bottom plate units are spliced to form the bottom plate; a plurality of side plate units, the plurality of side plate units are located on the top of the bottom plate unit and surround the outer periphery of the bottom plate unit, the height of the side plate unit is equal to the depth of the reserved opening, when a plurality of blocking units are spliced, adjacent side plate units of adjacent blocking units are abutted and detachably connected by a connecting piece, and a plurality of side plate units abutting to the inner wall of the reserved opening are spliced to form the side plate.

3. The reserved opening early removal system for the external wall free external formwork according to claim 2, characterized in that, The connecting piece is a limiting bolt, and a hole is formed in the adjacent side plate units of the adjacent blocking units for inserting the limiting bolt.

4. The reserved opening early removal system for the exterior wall free-form exterior template according to claim 1, wherein, The pair of tension bolts comprises two first pairs of tension bolts, and the two first pairs of tension bolts are respectively arranged on opposite sides of the reserved opening and are respectively tensioned between two ends of the first backrest and the second backrest.

5. The reserved opening early removal system for the exterior wall free-form exterior template according to claim 4, characterized in that, The first backrest comprises two detachable backrest units, one end of each of the two backrest units extends to the opposite sides of the reserved opening and is connected with the two first pairs of tension bolts, and the two backrest units can rotate around the corresponding first pair of tension bolts in a non-docking state.

6. The preformed opening early stripping system for the exterior wall formwork free of dismounting according to claim 1, characterized in that, The number of backrest assemblies is a plurality, and a plurality of backrest assemblies are arranged at intervals in the range of the reserved opening.

7. A preformed opening early removal method for a removable external formwork of an external wall, characterized in that, The steps comprise: Step 1: providing the reserved opening early removal system for the removable outer formwork of the outer wall to support and pour the outer wall; Step 2: after the maintenance of the outer wall is completed, the first backrest is removed; Step 3: the blocking piece is removed as a whole to expose the surface of the outer wall for installing the climbing frame embedded part.

8. The preformed opening early removal method for the exterior wall exempts the outside template of the method, it is characterized in being prepared in the preformed opening early removal method for the exterior wall exempts the outside template of claim 7, The first backrest comprises two detachable backrest units, one end of each of the two backrest units extends to the opposite sides of the reserved opening and is connected with the two first pairs of tension bolts, and the two backrest units can rotate around the corresponding first pair of tension bolts in a non-docking state; In the execution of the above step 2, the connection between the butt joint ends of the two back lath units is released, and the two back lath units are respectively rotated around the corresponding first pair of pull bolts until the two back lath units do not block the reserved opening.

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