Double-wall formwork structure

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a double-wall formwork structure. The double-wall formwork structure comprises a concrete formwork, the concrete formwork comprises an outer side formwork and an inner side formwork, a long and narrow double-wall pouring cavity is formed between the outer side formwork and the inner side formwork, the inner side formwork comprises supporting side plates, and the opposite supporting side plates are parallel to each other and arranged at intervals; and the supporting assembly is arranged between the two opposite supporting side plates, the supporting assembly abuts against the supporting side plates on the two sides, the supporting assembly is provided with an adjusting piece, and the length of the supporting assembly can be adjusted through the adjusting piece. The inner side formwork can be prefabricated firstly according to the size of the double walls needing to be poured, the prefabricated inner side formwork is placed at the construction position for construction, the problem that constructors enter the inner side space to build the inner side formwork is avoided, and the construction efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, specifically relates to a double wall formwork structure. BACKGROUND

[0002] Large commercial complex projects increase year by year, in order to meet the fire requirements, often underground space will set up multiple fire pools. The waterless room between the fire pools and the electrical equipment often needs to be set up airtight long and narrow double wall to block water vapor to achieve electrical safety. The common formwork needs to be installed by the construction personnel on both sides of the wall, but the inner space of the long and narrow double wall is small, the construction personnel cannot enter, resulting in that the formwork on the inner side of the wall cannot be installed. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the utility model provides a double wall formwork structure to solve the problem that the inner space of the long and narrow double wall is small, the construction personnel cannot enter, resulting in that the formwork on the inner side of the wall cannot be installed.

[0004] The utility model provides a double wall formwork structure, which comprises:

[0005] The concrete formwork comprises an outer formwork and an inner formwork, and a pouring cavity of a long and narrow double wall is formed between the outer formwork and the inner formwork, so the inner formwork comprises a support side plate, and the support side plates opposite to each other are parallel to each other and are arranged at intervals.

[0006] The support assembly is arranged between the two support side plates opposite to each other, the support assembly abuts against the support side plates on both sides respectively, the support assembly has an adjusting piece, and the length of the support assembly can be adjusted through the adjusting piece.

[0007] In an optional embodiment, the support assembly comprises a first support rod and a second support rod, one end of the first support rod abuts against the support side plate on one side, one end of the second support rod abuts against the support side plate on the other side, and the other ends of the first support rod and the second support rod are connected through the adjusting piece.

[0008] In an optional embodiment, the adjusting piece has a rotating part and a connecting part, the rotating part is rotationally connected to the other end of the first support rod, the connecting part has an external thread, the other end of the second support rod has a threaded hole, and the connecting part is screwed into the threaded hole and is screwed with the second support rod.

[0009] In an optional embodiment, the other end of the first support rod has a matching part rotationally connected to the rotating part, and the other end of the first support rod further has a limiting part for limiting the axial position of the rotating part.

[0010] In an alternative embodiment, the rotating part has a round head, the matching part has a round cavity, the round head is rotatably arranged in the round cavity, and the limiting part is located at an opening of the round cavity.

[0011] In an alternative embodiment, the side of the support side plate away from the wall has a plurality of support members, the plurality of support members are connected to each other through connecting members, and the first support rod and the second support rod are respectively abutted with the connecting members on both sides.

[0012] In an alternative embodiment, the end of the first support rod and the second support rod abutted with the connecting members is provided with a clamping member, and the first support rod and the second support rod are respectively clamped with the connecting members through the clamping member.

[0013] In an alternative embodiment, the connecting member is a steel pipe, the clamping member has a C-shaped socket, and the clamping member is clamped with the steel pipe through the C-shaped socket.

[0014] In an alternative embodiment, the first support rod has a concrete rod segment.

[0015] In an alternative embodiment, the outer formwork and the inner formwork are fixedly connected through a tension bolt.

[0016] Beneficial effects:

[0017] By arranging the support assembly in the inner formwork and adjusting the length of the support assembly through the adjusting member to match the spacing between the two oppositely arranged support side plates, the support assembly can be used between support side plates with different spacings through the adjusting member, the inner formwork can be prefabricated according to the size of the double wall to be cast, and the prefabricated inner formwork can be placed on the construction site for construction, thereby avoiding the problem of workers entering the inner space to build the inner formwork, and further improving the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 It is a top view of a double-wall formwork structure according to an embodiment of the present application.

[0020] Figure 2 It is a schematic view of a support assembly according to an embodiment of the present application.

[0021] Figure 3 Figure 2 is a sectional view of the inner formwork of the embodiment of the present application.

[0022] Marked for explanation:

[0023] 1, outer formwork; 2, inner formwork; 201, support side plate; 3, support assembly; 301, first support rod; 3011, concrete rod section; 302, second support rod; 4, adjusting part; 401, rotating part; 402, connecting part; 5, threaded hole; 6, matching part; 7, limiting part; 8, support part; 9, connecting part; 10, tension bolt. Specific implementation

[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the present application more clear, the technical scheme of the embodiment of the present application will be described clearly and completely below in combination with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] The embodiments of the present application will be described below in combination with Figures 1 to 3 .

[0026] According to the embodiment of the present application, a double-wall formwork structure is provided, which comprises: a concrete formwork and a support assembly 3.

[0027] Specifically, the concrete formwork comprises an outer formwork 1 and an inner formwork 2, and a pouring cavity of a long and narrow double wall is constructed between the outer formwork 1 and the inner formwork 2. The inner formwork 2 comprises support side plates 201, and the opposite support side plates 201 are parallel to each other and are arranged at intervals. The support assembly 3 is arranged between the two opposite support side plates 201, and the support assembly 3 abuts against the support side plates 201 on both sides. The support assembly 3 has an adjusting part 4, and the length of the support assembly 3 can be adjusted by the adjusting part 4.

[0028] In the embodiment, a pouring cavity of a long and narrow double wall is constructed between the outer formwork 1 and the inner formwork 2. The inner formwork 2 comprises four support side plates 201, and the four support side plates 201 are mutually enclosed to form a square structure. The support assembly 3 is arranged between two opposite support side plates 201, and the support assembly 3 supports the support side plates 201 on both sides to provide support force for the support side plates 201. The support assembly 3 has an adjusting part 4, and the length of the support assembly 3 can be adjusted by the adjusting part 4 to match the spacing between the two opposite support side plates 201.

[0029] In other embodiments, the inner formwork 2 can include six support side plates 201 combined into a regular hexagon structure, and the number of support side plates 201 is not specifically limited herein and can be determined according to construction requirements.

[0030] It should be noted that by arranging the support assembly 3 in the inner formwork 2 and adjusting the length of the support assembly 3 by the adjusting member 4 to match the spacing between two oppositely arranged support side plates 201, the support assembly 3 can be used between support side plates 201 with different spacings by the adjusting member 4, and the inner formwork 2 can be prefabricated according to the size of the double wall to be cast, and the prefabricated inner formwork 2 can be placed at the construction site for construction, thereby avoiding the problem of workers entering the inner space to build the inner formwork 2, and further improving the construction efficiency.

[0031] In one embodiment, the support assembly 3 includes a first support rod 301 and a second support rod 302, one end of the first support rod 301 abuts against one support side plate 201, one end of the second support rod 302 abuts against the other support side plate 201, and the other ends of the first support rod 301 and the second support rod 302 are connected by the adjusting member 4.

[0032] In the present embodiment, as shown in Figure 2 the left end of the first support rod 301 supports the left support side plate 201, the right end of the second support rod 302 supports the right support side plate 201, and the right end of the first support rod 301 and the left end of the second support rod 302 are connected to each other by the adjusting member 4, which can adjust the spacing between the right end of the first support rod 301 and the left end of the second support rod 302, thereby achieving the purpose of adjusting the support assembly 3.

[0033] In one embodiment, the adjusting member 4 has a rotating portion 401 and a connecting portion 402, the rotating portion 401 is rotatably connected to the other end of the first support rod 301, the connecting portion 402 has an external thread, the other end of the second support rod 302 has a threaded hole 5, and the connecting portion 402 is screwed into the threaded hole 5 and connected to the second support rod 302.

[0034] In the present embodiment, as shown in Figure 2As shown, the left end of the adjusting member 4 has a rotating part 401, the adjusting member 4 is rotatably connected with the right end of the first supporting rod 301 through the rotating part 401, the right end of the adjusting member 4 has a connecting part 402, the outer circumferential surface of the connecting part 402 is provided with external threads, the left end of the second supporting rod 302 is provided with a threaded hole 5, the connecting part 402 can be threadedly connected with the threaded hole 5, the adjusting member 4 is rotated, the rotating part 401 is rotated relative to the first supporting rod 301, the connecting part 402 will be rotated with the adjusting member 4 to extend into or out of the threaded hole 5, because the right end of the second supporting rod 302 abuts against the supporting side plate 201, the second supporting rod 302 will not be rotated, the second supporting rod 302 moves in the direction of approaching or moving away from the first supporting rod 301 under the action of the relative force, so as to achieve the purpose of adjusting the distance.

[0035] In one embodiment, the other end of the first supporting rod 301 has a matching part 6 rotatably connected with the rotating part 401, and the other end of the first supporting rod 301 further has a limiting part 7 for axially limiting the rotating part 401.

[0036] In the embodiment, as shown in the figure, Figure 2 the right end of the first supporting rod 301 has a matching part 6 rotatably connected with the rotating part 401, and the right end of the first supporting rod 301 further has a limiting part 7 for axially limiting the rotating part 401, so as to prevent the adjusting member 4 from being separated from the matching part 6 during rotation.

[0037] In one embodiment, the rotating part 401 has a round head, the matching part 6 has a circular cavity, the round head is rotatably arranged in the circular cavity, and the limiting part 7 is located at the opening of the circular cavity.

[0038] In the embodiment, as shown in the figure, Figure 2 the one end of the matching part 6 towards the second supporting rod 302 has an opening, the matching part 6 has a circular cavity, the opening is in communication with the circular cavity, the rotating part 401 has a round head, the round head is arranged in the circular cavity and can rotate in the circular cavity, the limiting part 7 is arranged at the opening and is used for limiting the round head to prevent the round head from coming out of the circular cavity, and the limiting part 7 and the matching part 6 form a C-shaped structure.

[0039] In one embodiment, the side of the supporting side plate 201 away from the wall body has a plurality of supporting members 8, the plurality of supporting members 8 are connected with each other through connecting members 9, and the first supporting rod 301 and the second supporting rod 302 abut against the connecting members 9 on both sides respectively.

[0040] In the embodiment, as shown in the figure, Figure 1As shown, the side of the support side plate 201 away from the wall body is provided with a plurality of support pieces 8, the adjacent support pieces 8 are arranged at intervals, the support pieces 8 can improve the strength of the support side plate 201, the plurality of support pieces 8 are connected to each other through the connecting pieces 9, the connecting pieces 9 can connect the plurality of support pieces 8 into a whole, which is conducive to improving the strength and stability of the whole, the support pieces 8 and the connecting pieces 9 of the two opposite support side plates 201 are correspondingly arranged, and the first support rod 301 and the second support rod 302 are respectively in abutment with the connecting pieces 9 on the two sides. The number of the support pieces 8 is not limited here, and the number of the support pieces 8 can be determined according to the construction requirements and the length of the support side plate 201.

[0041] Preferably, the support pieces 8 are arranged along the direction of gravity, and the connecting pieces 9 are arranged along the horizontal direction. In other embodiments, the support pieces 8 are arranged along the horizontal direction, the connecting pieces 9 are arranged along the direction of gravity, or the support pieces 8 are arranged obliquely, and the connecting pieces 9 are arranged along the horizontal direction.

[0042] Preferably, the support pieces 8 are wooden bars, and the connecting pieces 9 are steel pipes. In other embodiments, the support pieces 8 are steel pipes, and the connecting pieces 9 are wooden bars.

[0043] In one embodiment, the first support rod 301 and the second support rod 302 are provided with clamping pieces at the ends in abutment with the connecting pieces 9, and the first support rod 301 and the second support rod 302 are respectively clamped with the connecting pieces 9 through the clamping pieces.

[0044] In the present embodiment, the left end of the first support rod 301 and the right end of the second support rod 302 are provided with clamping pieces (not shown), and the first support rod 301 and the second support rod 302 are respectively clamped with the connecting pieces 9 through the clamping pieces, thereby providing support force for the connecting pieces 9.

[0045] In one embodiment, the connecting pieces 9 are steel pipes, and the clamping pieces have C-shaped sockets, and the clamping pieces are clamped with the steel pipes through the C-shaped sockets.

[0046] In one embodiment, the first support rod 301 has a concrete rod segment 3011. The concrete rod segment 3011 can improve the strength of the first support rod 301.

[0047] In one embodiment, the outer formwork 1 and the inner formwork 2 are fixedly connected through the tension bolts 10.

[0048] It should be noted that after the concrete reaches the form removal condition, the outer formwork 1 is removed, and the inner formwork 2 is retained in the inner side space of the wall body. After the outer formwork 1 is removed, the outer tension bolts 10 are pushed into the inner side space, and then the exposed holes are plugged with concrete. If the tension bolts 10 cannot be pushed into the inner side space, the tension bolts 10 exposed outside the wall body are cut.

[0049] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the appended claims.

Claims

1. A twin wall formwork structure, characterized in that, The utility model relates to a concrete formwork, which comprises an outer formwork (1) and an inner formwork (2), a long and narrow double-wall pouring cavity being formed between the outer formwork (1) and the inner formwork (2), and the inner formwork (2) comprises support side plates (201) that are parallel to each other and are arranged at intervals. A support assembly (3) is arranged between the two support side plates (201), the support assembly (3) abuts against the support side plates (201) on both sides, and the support assembly (3) is provided with an adjusting member (4) for adjusting the length of the support assembly (3). The support assembly (3) comprises a first support rod (301) and a second support rod (302), one end of the first support rod (301) abuts against one of the support side plates (201), one end of the second support rod (302) abuts against the other support side plate (201), and the other ends of the first support rod (301) and the second support rod (302) are connected by the adjusting member (4).

2. The twin-wall formwork structure of claim 1, wherein, The adjusting member (4) comprises a rotating part (401) and a connecting part (402), the rotating part (401) is rotatably connected to the other end of the first support rod (301), the connecting part (402) is provided with external threads, the other end of the second support rod (302) is provided with a threaded hole (5), and the connecting part (402) is screwed into the threaded hole (5) to be connected to the second support rod (302).

3. The twin-wall formwork structure of claim 2, wherein, The other end of the first support rod (301) is provided with a matching part (6) that is rotatably connected to the rotating part (401), and the other end of the first support rod (301) is also provided with a limiting part (7) for limiting the axial position of the rotating part (401).

4. The twin-wall formwork structure of claim 3, wherein, The rotating part (401) is provided with a round head, the matching part (6) is provided with a circular cavity, the round head is rotatably arranged in the circular cavity, and the limiting part (7) is arranged at the opening of the circular cavity.

5. The twin-wall formwork structure of claim 4, wherein, The side of the support side plate (201) that faces away from the wall is provided with a plurality of support members (8), the support members (8) are connected to each other by connecting members (9), and the first support rod (301) and the second support rod (302) abut against the connecting members (9) on both sides.

6. The twin-wall formwork structure of claim 2, wherein, The ends of the first support rod (301) and the second support rod (302) that abut against the connecting members (9) are provided with clamping members, and the first support rod (301) and the second support rod (302) are clamped to the connecting members (9) by the clamping members.

7. The twin-wall formwork structure of claim 6, wherein, The connecting members (9) are steel pipes, the clamping members are provided with C-shaped clamping holes, and the clamping members are clamped to the steel pipes by the C-shaped clamping holes.

8. The twin-wall formwork structure of claim 7, wherein, The first support rod (301) is provided with a concrete rod segment (3011).

9. The twin-wall formwork structure according to any one of claims 2 to 8, wherein, The outer formwork (1) and the inner formwork (2) are fixedly connected by tension bolts (10).

10. The twin-wall formwork structure of claim 9, wherein, ​

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