Steel frame for building template

Abstract

The utility model discloses a steel frame for a building template, which comprises a long frame and a short frame which are connected into a rectangle, the upper part of the long frame is bent outwards and then bent upwards to form a template spigot, the middle part of the long frame is sunken outwards to form an arc-shaped convex rib, and the lower part of the long frame is bent outwards and then bent inwards to form an O-shaped reinforcing rib. The template seam allowance, the arc-shaped convex rib and the O-shaped reinforcing rib extend along the full length direction of the long frame; the outer edges of the two ends of the short frame are matched with the outer wall of the long frame in shape and cover the ends of the long frame to be welded into a whole, and the middle area of the short frame is sunken inwards to form an inner boss. The opposite end faces of the two long frames are connected through a plurality of cross arms, the cross section of each cross arm is in an inverted n shape, the middle area of each cross arm is flush with the bottom of the corresponding long frame, and two folded edges of the upper portion of each cross arm are flush with steps of a formwork spigot. The steel frame for the building formwork is light in weight, high in strength, high in load bearing capacity, rapid and convenient to assemble and high in concrete forming quality.

Description

Technical Field

[0001] The utility model relates to a steel frame for building templates, which is used for laying templates and belongs to the technical field of building templates. Background Art

[0002] Building formwork is a temporary support structure built around the exterior of a structure according to its shape. The mixed concrete is poured into the cavity formed by the formwork and then solidified. Therefore, the building formwork needs to bear its own weight and the load of the concrete in its inner cavity. The formwork determines the shape and surface quality of the concrete. Wooden formwork has the problems of difficult demoulding and low turnover rate during use. For reinforced concrete projects, the largest consumable is the formwork. According to the construction technical conditions, the formwork can be made of plywood, laminated board, plastic-coated wood formwork, steel formwork, etc.

[0003] How to reduce material loss, construction costs, and environmental impact while ensuring construction quality is an important criterion for evaluating whether it belongs to green construction. Due to the heavy weight of steel molds and the small area of ​​a single steel mold, multiple splicing can easily cause the surface of the concrete to be uneven. When removing the mold, the workers' throwing and smashing can easily cause local deformation of the steel mold, which further affects the flatness; when embedded parts pass through the concrete, it is very inconvenient to drill holes in the steel mold. Because of its light weight and easy processing and manufacturing, wooden molds can better meet various construction needs. Therefore, wooden molds are often used in large areas such as pouring floors. In particular, more and more modern buildings or structures require high-level clear water effects. The concrete projects have high requirements for flatness, and there is a great demand for high-quality wooden molds.

[0004] The announcement number is CN218117206U. The utility model discloses a light-weight and easy-to-use steel frame wood formwork, including two combined frames, a plurality of transverse back ribs are fixedly arranged at the lower end of the combined frames, a plurality of main longitudinal ribs are fixedly arranged at the upper end of the transverse back ribs, a plurality of fixed wood form angle steels are fixedly arranged on both sides of the upper end of each main longitudinal rib, the upper surface of the fixed wood form angle steel is flush with the upper surface of the main longitudinal rib, a wooden panel is fixedly arranged at the upper end of the fixed wood form angle steel, and the wooden panel, the combined frames, and the front and rear sides of the main longitudinal ribs are fixedly arranged with transverse frames, the transverse frames are arranged horizontally, and two lifting rings are provided at both ends of each transverse frame. Although the technical scheme has taken certain measures to reduce the weight, a plurality of mutually parallel square tubes are fixed above a plurality of transversely spaced transverse back ribs as the main longitudinal ribs, so that the overall weight is still heavy, the template is not easy to accurately position on the steel frame, and there are many connection points between the template and the steel frame, and the installation efficiency is low. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0007] The utility model aims to overcome the problems existing in the prior art and provide a steel frame for building formwork, which has light weight, high strength, strong load bearing capacity, quick and convenient assembly and high concrete forming quality.

[0008] In order to solve the above technical problems, the utility model provides a steel frame for building templates, comprising a long frame and a short frame connected into a rectangle, the upper part of the long frame is bent outward and then bent upward to form a template stop, the middle part of the long frame is recessed outward to form an arc-shaped convex rib, the lower part of the long frame is bent outward and then bent inward to form an O-shaped reinforcing rib, and the template stop, the arc-shaped convex rib and the O-shaped reinforcing rib extend along the full length direction of the long frame;

[0009] The shapes of the outer edges of the two ends of the short frame match the shape of the outer wall of the long frame and are covered on the end of the long frame and welded together. The middle area of ​​the short frame is concave inward to form an inner boss;

[0010] The facing end faces of the two long frames are connected to each other through multiple cross arms, the cross section of each cross arm is an inverted "X" shape, the middle area of ​​each cross arm is flush with the bottom of the long frame, and the upper two folded edges of each cross arm are flush with the steps of the template stop.

[0011] As an improvement of the utility model, the outer walls of the arcuate convex ribs and the O-shaped reinforcing ribs of the long frame are flush with the outer wall of the template stop, and the inner edge of the O-shaped reinforcing rib is flush with the inner wall of the long frame.

[0012] As a further improvement of the present invention, a plurality of long frame through holes are evenly distributed along the length direction in the middle portion of the long frame in the height direction.

[0013] As a further improvement of the present invention, the upper edge of the inner boss of the short frame is flush with the step of the template stop of the long frame.

[0014] As a further improvement of the present invention, a plurality of short frame through holes are evenly distributed on the inner boss of the short frame.

[0015] As a further improvement of the utility model, the upper two folded edges of each cross arm are respectively provided with a plurality of template fixing holes.

[0016] As a further improvement of the present invention, a plurality of crossarm through holes are evenly arranged in the middle region of each crossarm, and crossarm R angles that fit with the O-shaped reinforcement ribs of the long frame are respectively arranged at both ends of the bottom of each crossarm.

[0017] As a further improvement of the present invention, the upper edge of the template stop of the long frame is bent inward to form a top supporting fold perpendicular to the vertical wall of the long frame, and the highest point of the inner boss of the short frame is flush with the upper edge of the short frame.

[0018] As a further improvement of the utility model, the total height of the long frame is 65 mm, the distance between the step of the template stop and the upper edge of the long frame is 15 mm, the distance between the outer wall of the template stop and the inner wall of the long frame is 8 mm, and the wall thickness of the long frame is 2.8 mm.

[0019] As a further improvement of the present invention, the total height of the short frame is 65 mm, the distance between the upper edge of the inner boss of the short frame and the upper edge of the short frame is 15 mm, and the height of the inner boss is 41 mm; the wall thickness of the short frame is 3 mm, and the height of the inner boss protruding from the short frame is 5 mm.

[0020] Compared with the prior art, the utility model has achieved the following beneficial effects: 1. The steel frame is light in weight, the wooden formwork is quick and convenient to position and install, there are few joints, and the short package long structure is adopted to accurately ensure the outer dimensions of the steel frame; multiple cross arms are arranged along the length direction of the steel frame to improve the strength of the steel frame and provide uniform and reliable support for the wooden formwork;

[0021] 2. Thin-walled steel plates are continuously bent to form a receiving interface for the positioning and installation of the wooden formwork. The long frame is bent to form at least three reinforcing ribs, which greatly improves the ability to bear concrete loads. The template stop of the long frame, the inner boss of the short frame and the pair of folded edges of each cross arm provide accurate positioning for the wooden formwork and strong support for the wooden formwork, ensuring its peripheral dimensions and flatness, and ensuring the geometric dimensions, molding quality and construction safety of the concrete.

[0022] 3. After the long frame is bent, the overall thickness of the upper and lower shapes is consistent, which is convenient for adjacent steel frames to be firmly connected and fixed, so that when pouring muddy concrete, the template stop is wrapped around the wooden template to form protection, which is convenient for repeated use. The joints between adjacent steel frames are very thin, leaving only the joint traces, and there will be no leakage. It can also pour plain concrete, and adjacent wooden templates can be seamlessly spliced ​​without the need for secondary plastering, further improving the surface quality of the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. The drawings are only provided for reference and explanation, not for limiting the present utility model. Among them:

[0024] Figure 1 It is a top view of the steel frame for building formwork of the utility model;

[0025] Figure 2 for Figure 1 A transverse cross-sectional view of

[0026] Figure 3 for Figure 1 A longitudinal cross-sectional view of

[0027] Figure 4 This is a cross-sectional view of the long frame of the muddy water template of Example 1 of the utility model;

[0028] Figure 5 This is a front view of the short frame of the muddy water template of Example 1 of the utility model;

[0029] Figure 6 This is a short frame cross-sectional view of a muddy water template according to a first embodiment of the utility model;

[0030] Figure 7 It is a cross-sectional view of the cross arm in the utility model;

[0031] Figure 8 for Figure 7 A top view of

[0032] Fig. 9 for Figure 7 Left view of

[0033] Fig.10 This is a cross-sectional view of the long frame of the clear water template of the second embodiment of the utility model;

[0034] Fig.11 This is a front view of the short frame of the second clear water template of the utility model;

[0035] Fig.12 This is a short frame cross-sectional view of the clear water template of Example 2 of the utility model;

[0036] In the figure: 1. long frame; 1a. O-shaped reinforcement rib; 1b. arc-shaped convex rib; 1c. template stop; 1d. long frame through hole; 1e. top support folded edge;

[0037] 2. Short frame; 2a. Inner boss; 2b. Short frame through hole;

[0038] 3. Cross arm; 3a. Cross arm through hole; 3b. Template fixing hole; 3c. Cross arm R angle. DETAILED DESCRIPTION

[0039] In the following description of the utility model, the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not mean that the device must have a specific direction.

[0040] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific figures. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] like Figures 1 to 9 As shown, the steel frame for building formwork of the utility model comprises two long side frames 1 and two short side frames 2. The two long side frames 1 and the two short side frames 2 are spliced ​​into a rectangle and welded into one.

[0043] Example 1: Pouring muddy water concrete

[0044] The upper part of the long frame 1 is bent outward and then bent upward to form a template stop 1c, which extends along the entire length of the long frame 1. The height of the template stop 1c is equal to the thickness of the wooden template. The wooden template is placed in the template stop 1c, and the bottom step of the template stop 1c provides support for the wooden template while forming the first bending reinforcement rib. The template stop 1c forms an edge protection for the long edge of the wooden template.

[0045] The middle of the long frame 1 is sunken outward to form an arcuate convex rib 1b, which extends along the full length of the long frame 1 and forms a second reinforcing rib in the height direction of the long frame 1. The lower part of the long frame 1 is bent outward and then inward to form an O-shaped reinforcing rib 1a, which extends along the full length of the long frame 1 and forms a third reinforcing rib at the bottom edge of the long frame 1. A plurality of long frame through holes 1d are evenly distributed along the length direction in the middle of the long frame in the height direction to facilitate the connection of adjacent steel frames.

[0046] The outer walls of the arc-shaped convex rib 1b and the O-shaped reinforcement rib 1a of the long frame 1 are flush with the outer wall of the template stop 1c, and the inner edge of the O-shaped reinforcement rib 1a is flush with the inner wall of the long frame 1, so that the adjacent steel frames can be fixedly connected by fasteners after being pressed together, so that there will be no leakage at the joints of the steel frames.

[0047] The shape of the outer edges of the two ends of the short frame 2 matches the shape of the outer wall of the long frame 1. The two ends of the short frame 2 cover the ends of the long frame 1 to form a short-wrapped-long structure and are welded to each other as a whole. The middle area of ​​the short frame 2 is recessed inward to form an inner boss 2a. The upper edge of the inner boss 2a of the short frame 2 is flush with the step of the template stop 1c of the long frame 1, so that the upper step surface of the inner boss 2a provides support for the short side of the wooden template, and the upper edge of the short frame 2 forms an edge protection along the short side of the wooden template.

[0048] A plurality of short frame through holes 2b are evenly distributed on the inner boss 2a of the short frame 2, so as to facilitate the splicing and fixing of the short side of the steel frame with the adjacent steel frame.

[0049] The facing end faces of the two long frames 1 are connected to each other by multiple cross arms 3. The cross section of each cross arm 3 is an inverted "X" shape, that is, the middle raised part of the cross arm 3 is flush with the lower edge of the long frame 1, forming a bottom support beam, and cross arm R angles 3c are respectively provided at the two ends of the bottom of each cross arm 3, which are consistent with the outer wall of the O-shaped reinforcement rib 1a of the long frame 1 and are welded as a whole.

[0050] The upper two folded edges of each cross arm 3 are flush with the steps of the template stop 1c and supported on the bottom of the wooden template; the two folded edges are respectively provided with a plurality of template fixing holes 3b along their respective length directions, so as to facilitate screwing and fixing the wooden template. The middle area of ​​each cross arm 3 is evenly provided with a plurality of cross arm through holes 3a.

[0051] The total height of the long frame 1 is 65 mm, the distance between the step of the template stop 1c and the upper edge of the long frame is 15 mm, the distance between the outer wall of the template stop 1c and the inner wall of the long frame is 8 mm, and the wall thickness of the long frame is 2.8 mm.

[0052] The total height of the short frame 2 is 65mm, the distance between the upper edge of the inner boss of the short frame 2 and the upper edge of the short frame is 15mm, and the height of the inner boss 2a is 41mm; the wall thickness of the short frame 2 is 3mm, and the height of the inner boss 2a protruding from the short frame 2 is 5mm.

[0053] Example 2: Casting of plain concrete

[0054] like Figures 10 to 12As shown, the wooden formwork is not placed in the formwork stop 1c, but the upper edge of the formwork stop 1c of the long frame 1 is bent inward to form a top supporting fold 1e perpendicular to the vertical wall of the long frame. The width of the top supporting fold 1e is 35.8mm. The wooden formwork is placed on the top supporting fold 1e to facilitate seamless splicing between adjacent wooden formworks, meeting the pouring requirements of fair-faced concrete.

[0055] When pouring plain concrete, the highest point of the inner boss 2a of the short frame 2 is flush with the upper edge of the short frame 2, and is supported together with the top support fold 1e of the long frame 1 under the wooden formwork, so that the wooden formwork can also be seamlessly spliced ​​in the short side direction of the steel frame. The height of the long frame 1 and the short frame 2 for plain concrete is usually 50mm.

[0056] The above description is only the preferred feasible embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model, but does not limit the scope of patent protection of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. In addition to the above embodiments, the utility model can also have other implementation modes without departing from the spirit and scope of the utility model. The utility model will also have various changes and improvements. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents. The technical features not described in the utility model can be achieved by or using existing technologies, which will not be repeated here.

Claims

1. A steel frame for building formwork, comprising a long frame and a short frame connected to form a rectangle, characterized in that: The upper portion of the long frame is bent outward and then upward to form a template stop, the middle portion of the long frame is concave outward to form an arc-shaped convex rib, the lower portion of the long frame is bent outward and then inward to form an O-shaped reinforcing rib, and the template stop, the arc-shaped convex rib and the O-shaped reinforcing rib extend along the entire length of the long frame; The shapes of the outer edges of the two ends of the short frame match the shape of the outer wall of the long frame and are covered on the end of the long frame and welded together. The middle area of ​​the short frame is concave inward to form an inner boss; The facing end faces of the two long frames are connected to each other through multiple cross arms, the cross section of each cross arm is an inverted "X" shape, the middle area of ​​each cross arm is flush with the bottom of the long frame, and the upper two folded edges of each cross arm are flush with the steps of the template stop.

2. The steel frame for building formwork according to claim 1, characterized in that: The outer walls of the arc-shaped convex ribs and the O-shaped reinforcing ribs of the long frame are flush with the outer wall of the template stop, and the inner edge of the O-shaped reinforcing rib is flush with the inner wall of the long frame.

3. The steel frame for building formwork according to claim 1, characterized in that: A plurality of long frame through holes are evenly distributed along the length direction in the middle portion of the long frame in the height direction.

4. The steel frame for building formwork according to claim 1, characterized in that: The upper edge of the inner boss of the short frame is flush with the step of the template stop of the long frame.

5. The steel frame for building formwork according to claim 1, characterized in that: A plurality of short frame through holes are evenly distributed on the inner boss of the short frame.

6. The steel frame for building formwork according to claim 1, characterized in that: The upper two folded edges of each cross arm are respectively provided with a plurality of template fixing holes.

7. The steel frame for building formwork according to claim 1, characterized in that: A plurality of cross arm through holes are evenly arranged in the middle area of ​​each cross arm, and cross arm R angles that fit with the O-shaped reinforcement ribs of the long frame are respectively arranged at both ends of the bottom of each cross arm.

8. The steel frame for building formwork according to claim 1, characterized in that: The upper edge of the template stop of the long frame is bent inward to form a top supporting fold perpendicular to the vertical wall of the long frame, and the highest point of the inner boss of the short frame is flush with the upper edge of the short frame.

9. The steel frame for building formwork according to any one of claims 1 to 7, characterized in that: The total height of the long frame is 65 mm, the distance between the step of the template stop and the upper edge of the long frame is 15 mm, the distance between the outer wall of the template stop and the inner wall of the long frame is 8 mm, and the wall thickness of the long frame is 2.8 mm.

10. The steel frame for building formwork according to claim 9, characterized in that: The total height of the short frame is 65 mm, the distance between the upper edge of the inner boss of the short frame and the upper edge of the short frame is 15 mm, and the height of the inner boss is 41 mm; the wall thickness of the short frame is 3 mm, and the height of the inner boss protruding from the short frame is 5 mm.

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