A steel formwork for fire walls in cold regions

Abstract

The utility model discloses a steel template for a fire wall in cold areas, relates to the field of fire walls, and comprises a steel template component, wherein the steel template component comprises a first steel template and a second steel template which are hinged to each other, a telescopic plate is arranged inside the second steel template, one end of the telescopic plate is located outside the second steel template, and a limiting plate is arranged at one end of the telescopic plate which is located outside the second steel template, so as to solve the problem that the existing steel template cannot be bent and the size cannot be temporarily changed.

Description

Technical Field

[0001] The utility model relates to the field of firewalls, in particular to a steel template for firewalls in cold areas. Background Art

[0002] Firewalls are important concrete structures in substation projects. The use of plain concrete firewalls can not only improve the structural strength and safety of the firewalls, but also further enhance the overall image of the substation project due to their better visual quality.

[0003] Compared with steel formwork, wooden formwork is more difficult to demould and less beautiful, especially in cold regions. Therefore, there are generally two construction processes for cast-in-place firewalls in cold regions: one-time casting and combined steel formwork. One-time casting requires more materials and difficult formwork installation. Currently, combined steel formwork is usually used for construction, but the size of the steel formwork is fixed after it is produced. For some bends or target firewalls that have a certain gap after the steel formwork is spliced, and this gap cannot be installed with another steel formwork, it is necessary to use customized steel formwork or use wooden formwork for leak repair. Customized steel formwork has no fixed shape and size due to the differences in firewalls. Temporary customization takes a long time and is costly. When using wooden formwork for leak repair, the strength of the wooden formwork is low, and the wooden board material also requires additional preparation, including material search, wooden board cutting, etc., and the connection between the wooden formwork and the steel formwork is unreliable, resulting in reduced construction quality. Utility Model Content

[0004] The utility model provides a steel template for a fire wall in cold areas, so as to solve the problem that the existing steel template cannot be bent and the size cannot be changed on site.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A steel formwork for a fire wall in cold regions comprises a steel formwork assembly, wherein the steel formwork assembly comprises a first steel formwork and a second steel formwork hinged to each other, wherein a telescopic plate is arranged inside the second steel formwork, wherein one end of the telescopic plate is located outside the second steel formwork, and a limiting plate is arranged at one end of the telescopic plate located outside the second steel formwork.

[0007] The utility model realizes the splicing of a plurality of steel templates by bending a first steel template and a second steel template by hinged connection, adjusting the overall length of the steel template by extending the second steel template by a telescopic plate, and realizing the splicing of a plurality of steel templates by connecting one end of the first steel template with a limiting plate of another second steel template, thereby realizing the splicing of bent steel templates and filling the gaps left by the assembled steel templates, without the need to customize specific steel templates, reducing costs, eliminating the need to wait for customization time, and shortening the construction period.

[0008] Furthermore, it also includes a first waterproof plate installed on one side of the first steel formwork and the second steel formwork.

[0009] By laying a continuous first waterproof board on the first steel formwork and the second steel formwork, the gap between the first steel formwork and the second steel formwork caused by bending is sealed to prevent cement from seeping out from the hinge when pouring cement. At the same time, the first waterproof board is a single board, so that no gaps, ridges, etc. will appear on the surface of the cast fire wall.

[0010] Furthermore, a second waterproof plate is provided on one side of the telescopic plate, and one end of the second waterproof plate is embedded between the first waterproof plate and the second steel formwork.

[0011] When the telescopic plate is extended, the second waterproof plate is also extended to prevent cement from penetrating into the gap of the telescopic plate and affecting the extension and shortening of the telescopic plate.

[0012] Furthermore, it also includes an extended waterproof plate connected to one end of the first waterproof plate, and the extended waterproof plate is located on a side of the first steel formwork away from the second steel formwork.

[0013] The extended waterproof plate can seal the gap between the first steel formwork and the limiting plate to prevent cement from seeping out.

[0014] Furthermore, a limiting rod is provided on the second steel template, and the telescopic plate is embedded between the limiting rod and the second steel template. The limiting rod guides and limits the telescopic plate to prevent the telescopic plate from lateral movement.

[0015] Furthermore, the limit rod is provided with a plurality of screw holes, in which threaded push rods are installed. The telescopic plate can be fixed by screwing the threaded push rods, and at the same time, the telescopic plate can be pushed toward one side of the second waterproof plate, so that the second waterproof plate can obtain additional support.

[0016] Furthermore, at least two limit rods are provided, one of which is located on one side of the end of the second steel formwork.

[0017] Furthermore, the telescopic plate is provided with a plurality of guide ribs on a side facing the limiting rod, and the limiting rod is provided with a plurality of guide grooves on a side facing the telescopic plate, and the guide ribs and the guide grooves match and correspond one to one.

[0018] The lateral displacement of the expansion board is limited by the guide ribs and guide grooves. At the same time, the guide ribs can enhance the overall rigidity of the expansion board, so that the expansion board has stronger rigidity to resist the extrusion of cement when pouring the fire wall.

[0019] Furthermore, a sandwich is provided inside the first steel formwork and the second steel formwork, and the sandwich is filled with a heat-insulating material. The heat-insulating material can keep the poured fire wall warm and prevent it from losing water and temperature, which would affect the construction.

[0020] Furthermore, one end of the first steel template and the limiting plate are both provided with connection holes for mutual connection, which are used for connection between two steel templates.

[0021] One or more technical solutions provided by the utility model have at least the following technical effects or advantages:

[0022] (1) The utility model realizes the assembly of bent steel templates and the gap left by the assembled steel templates by bending the first steel template and the second steel template by extending the second steel template through a telescopic plate, thereby reducing the cost and the time required for customization and shortening the construction period.

[0023] (2) The gaps between the first steel formwork, the second steel formwork and the telescopic plate are blocked by setting the first waterproof board, the second waterproof board and the extended waterproof board to prevent cement from seeping in and affecting the subsequent removal and reuse of the steel formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of the present utility model, and do not constitute a limitation on the embodiments of the present utility model;

[0025] Figure 1 It is a cross-sectional view of the steel formwork structure in the utility model;

[0026] Figure 2 It is the front view of the steel formwork in the utility model;

[0027] Among them, 1-first steel formwork, 2-second steel formwork, 3-telescopic plate, 4-limiting plate, 5-first waterproof plate, 6-second waterproof plate, 7-extended waterproof plate, 8-limiting rod, 9-screw hole, 10-guide rib. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those within the scope of this description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0030] Example 1

[0031] This embodiment provides a steel template for fire walls in cold regions, such as Figure 1-Figure 2 As shown, it includes a steel template assembly, which includes a first steel template 1 and a second steel template 2 that are hinged to each other, a telescopic plate 3 is arranged inside the second steel template 2, one end of the telescopic plate 3 is located outside the second steel template 2, and a limiting plate 4 is arranged at one end of the telescopic plate 3 located outside the second steel template 2. The limiting plate cannot be retracted into the second steel template.

[0032] Among them, the bending direction of the first steel template 1 and the second steel template 2 is bidirectional, that is, when the first steel template 1 and the second steel template 2 are placed horizontally, the first steel template 1 or the second steel template 2 can rotate clockwise or counterclockwise around the rotation axis, the length of the telescopic plate 3 is less than or equal to the length of the second steel template 2, and the size of the limiting plate 4 is equal to the size of the end of the second steel template 2, preventing the telescopic plate 3 from being completely embedded in the second steel template 2 and unable to extend.

[0033] In a more preferred embodiment, it also includes a first waterproof plate 5 installed on one side of the first steel formwork 1 and the second steel formwork 2.

[0034] The first waterproof board 5 is preferably made of thin steel plate, which has good strength and can be bent to an appropriate amount. After two thin steel plates are bonded together, they can also have a certain performance of preventing cement from passing through.

[0035] In a more preferred embodiment, a second waterproof plate 6 is provided on one side of the telescopic plate 3 , and one end of the second waterproof plate 6 is embedded between the first waterproof plate 5 and the second steel formwork 2 .

[0036] The second waterproof board 6 is preferably made of thin steel plate, which has good strength, and is convenient for the second waterproof board 6 to be embedded between the first waterproof board 5 and the second steel formwork 2. After being bonded to the first waterproof board 5, it can also have a certain performance of preventing cement from passing through. Moreover, the thickness of the thin steel plate is thin. Even if the telescopic board 3 is received in the second steel formwork 2 or a part of it is extended, the thickness of the first waterproof board 5 and the second waterproof board 6 is still small, and the impact on the surface of the cast fire wall is small.

[0037] In a more preferred embodiment, it further includes an extended waterproof plate 7 connected to one end of the first waterproof plate 5 , and the extended waterproof plate 7 is located on a side of the first steel formwork 1 away from the second steel formwork 2 .

[0038] The length of the extended waterproof board 7 is arbitrary, and it is used to seal the gap generated when the first steel formwork 1 is connected to the limit plate 4. The extended waterproof board 7 is preferably made of thin steel plate, which has good strength. After the two thin steel plates are bonded together, they can also have a certain performance in preventing cement from passing through. The extended waterproof board 7 is continuous with the first waterproof board 5 and is cut from the same thin steel plate.

[0039] In a more preferred embodiment, interlayers are provided inside the first steel formwork 1 and the second steel formwork 2, and the interlayers are filled with heat-insulating materials.

[0040] Among them, the interlayer is opened on the side close to the first waterproof board 5, which is closer to the poured cement, and the insulation material can be a rock wool board, a glass wool board, etc.

[0041] In a more preferred embodiment, one end of the first steel template 1 and the limiting plate 4 are both provided with connection holes for mutual connection.

[0042] Among them, the connection method of the steel formwork is the first steel formwork 1, the second steel formwork 2, the first steel formwork 1 and the second steel formwork 2. The second steel formwork 2 is hinged to the first steel formwork 1 on one side, and is connected to the limiting plate on the first steel formwork 1 on the other side by bolts or the like.

[0043] Example 2

[0044] Based on the above embodiments, Figure 1-Figure 2 As shown, a limiting rod 8 is provided on the second steel template 2 , and the telescopic plate 3 is embedded between the limiting rod 8 and the second steel template 2 .

[0045] Among them, the limiting rod 8 is equal to and parallel to the side length of the second steel template 2, and the two ends of the limiting rod 8 are respectively fixedly connected to the second steel template 2, so that a sliding groove is formed between the limiting rod 8 and the second steel template 2 for the telescopic plate 3 to pass through.

[0046] In a more preferred embodiment, the limiting rod 8 is provided with a plurality of screw holes 9 , and threaded push rods are installed in the screw holes 9 .

[0047] Among them, the number of screw holes 9 is determined according to the length of the limiting rod 8, preferably more than 3 are set, evenly distributed on the limiting rod 8, the threaded push rod is a screw, and a pushing block is provided below the lower end of the screw, and the pushing block contacts the telescopic plate 3.

[0048] In a more preferred embodiment, at least two limiting rods 8 are provided, one of which is located at one side of the end of the second steel template 2. The plurality of limiting rods 8 are arranged in parallel and evenly distributed on the second steel template 2.

[0049] In a more preferred embodiment, the telescopic plate 3 is provided with a plurality of guide ribs 10 on the side facing the limiting rod 8, and the limiting rod 8 is provided with a plurality of guide grooves on the side facing the telescopic plate 3, and the guide ribs 10 and the guide grooves match and correspond one to one.

[0050] The number of the guide ribs 10 is determined according to the length of the telescopic plate 3 and is evenly distributed to enhance the strength of the telescopic plate 3 . The length of the guide ribs 10 is equal to the maximum extension distance of the telescopic plate 3 .

[0051] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A steel formwork for fire walls in cold regions, characterized in that: The invention comprises a steel formwork assembly, wherein the steel formwork assembly comprises a first steel formwork (1) and a second steel formwork (2) which are hinged to each other, a telescopic plate (3) is provided inside the second steel formwork (2), one end of the telescopic plate (3) is located outside the second steel formwork (2), and a limiting plate (4) is provided at one end of the telescopic plate (3) located outside the second steel formwork (2).

2. The steel formwork for fire walls in cold regions according to claim 1 is characterized in that: It also includes a first waterproof plate (5) installed on one side of the first steel formwork (1) and the second steel formwork (2).

3. The steel formwork for fire walls in cold regions according to claim 2 is characterized in that: A second waterproof plate (6) is provided on one side of the telescopic plate (3), and one end of the second waterproof plate (6) is embedded between the first waterproof plate (5) and the second steel formwork (2).

4. The steel formwork for a fire wall in cold regions according to claim 2 is characterized in that: It also includes an extended waterproof plate (7) connected to one end of the first waterproof plate (5), and the extended waterproof plate (7) is located on a side of the first steel formwork (1) away from the second steel formwork (2).

5. The steel formwork for fire walls in cold regions according to claim 1 is characterized in that: The second steel template (2) is provided with a limiting rod (8), and the telescopic plate (3) is embedded between the limiting rod (8) and the second steel template (2).

6. The steel formwork for fire walls in cold regions according to claim 5, characterized in that: The limiting rod (8) is provided with a plurality of screw holes (9), and threaded push rods are installed in the screw holes (9).

7. The steel formwork for fire walls in cold regions according to claim 5, characterized in that: At least two limiting rods (8) are provided, one of which is located on one side of the end of the second steel template (2).

8. The steel formwork for fire walls in cold regions according to claim 5, characterized in that: The telescopic plate (3) is provided with a plurality of guide ribs (10) on one side facing the limiting rod (8), and the limiting rod (8) is provided with a plurality of guide grooves on one side facing the telescopic plate (3), and the guide ribs (10) and the guide grooves match and correspond one to one.

9. The steel formwork for fire walls in cold regions according to claim 1, characterized in that: The first steel formwork (1) and the second steel formwork (2) are provided with interlayers inside, and the interlayers are filled with heat-insulating materials.

10. The steel formwork for fire walls in cold regions according to claim 1, characterized in that: One end of the first steel template (1) and the limiting plate (4) are both provided with connection holes for mutual connection.

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