Large-section adjustable column back ridge

Abstract

The utility model discloses a large-section adjustable column back ridge which is a single back ridge or a double back ridge. Wherein the double-back ridge comprises two square pipes, end baffles and connecting pipes or connecting plates, and the square pipes are arranged in parallel up and down in the length direction; the connecting pipe or the connecting plate is welded between the two square pipes, a plurality of modulus holes are formed in the connecting pipe or the connecting plate, and the modulus holes are distributed in the length direction; the end baffle is perpendicularly welded to one ends of the two square pipes. Or each single back ridge comprises a square tube and an end baffle, modulus holes are formed in the square tubes in the length direction, and the end baffles are perpendicularly welded to one ends of the two square tubes; and screw holes are formed in the end part baffles and are aligned with the modulus holes. The concrete column formwork fixing device achieves fixing of formworks of concrete columns with different section sizes, and is convenient to install and high in standardization degree.

Description

Technical Field

[0001] The utility model relates to a large-section adjustable column back rib, belonging to the technical field of building templates. Background Art

[0002] In concrete construction, back ribs play a vital role. Back ribs are mainly used as components to support edges and corners, and are usually made of materials such as wood, steel or plastic. Its main function is to enhance the stability and load-bearing capacity of the formwork, so that the formwork can withstand heavy pressure and impact during concrete pouring, prevent deformation and bursting, and thus ensure the integrity of the concrete structure and that the size meets the design requirements.

[0003] Traditional column back ribs are made of ordinary steel or special profiles punched and bent, and fixed with pins. Since the column back ribs are fixed with pins, they are easy to loosen during the pouring process, and the column will be out of square and the mold will expand. In addition, traditional column back ribs are mainly designed for small-section columns, and their own rigidity is low. When fixing large-section columns, it is easy to cause mold expansion on site, which brings safety hazards to construction. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a large-section adjustable column back rib.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] A large cross-section adjustable column back rib, which is a single back rib or a double back rib.

[0007] The double back rib comprises two square tubes, an end baffle and a connecting tube or a connecting plate, wherein the square tubes are arranged in parallel up and down along the length direction; the connecting tube or the connecting plate is welded between the two square tubes, and a plurality of modular holes are opened on the connecting tube or the connecting plate, and the modular holes are distributed along the length direction; the end baffle is vertically welded to one end of the two square tubes; or,

[0008] The single back rib comprises a square tube and an end baffle, wherein the square tube is provided with a modular hole along the length direction, and the end baffle is vertically welded to one end of the two square tubes; and the end baffle is provided with a screw hole aligned with the modular hole.

[0009] Preferably, the length of the connecting tube is less than or equal to that of the square tube; the connecting tube is arranged at one end of the square tube; and the upper and lower side plates of the connecting tube are welded to one of the square tubes.

[0010] Preferably, the thickness of the side plate of the connecting pipe is greater than the thickness of the square pipe.

[0011] Preferably, the end baffle is arranged at an end away from the connecting pipe.

[0012] Preferably, there are two screw holes, and the spacing between the screw holes is the same as the spacing between the modular holes.

[0013] Preferably, the length of the connecting plate is less than or equal to the length of the square tube.

[0014] Preferably, the connecting plate is located on a side of the square tube away from the end baffle.

[0015] Preferably, the height of the side surface of the single-back square tube on which the modular hole is arranged is the same as the thickness of the connecting plate or the connecting tube.

[0016] Preferably, the connecting pipe or the connecting plate is connected to the square pipe and the end baffle by bolts, so that the two large-section adjustable column back ribs are vertically connected.

[0017] Compared with the prior art, the utility model has the following technical effects: by arranging a connecting pipe with multiple modular holes between two square tubes, the formwork fixation of a concrete column with a large cross-section size is realized. The large-section adjustable column back rib is easy to install and has a high degree of standardization, which effectively improves the standardization rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a large-section adjustable column back rib provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the top view of the structure of a large-section adjustable column back rib provided in an embodiment of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure after the size adjustment;

[0021] Figure 4 It is a schematic diagram of the overall structure of the double back rib;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure from another angle;

[0023] Figure 6 It is a schematic diagram of the overall structure of a double-back-ribbed square tube;

[0024] Figure 7 It is a schematic diagram of the side structure of a double-back-ribbed square tube;

[0025] Figure 8 It is a schematic diagram of the overall structure of the connecting pipe;

[0026] Fig. 9 It is a schematic diagram of the front structure of the end baffle;

[0027] Fig.10 is a schematic diagram of the side structure of the end baffle;

[0028] Fig.11 It is a schematic diagram of the corner connection of the double back rib;

[0029] Fig.12 is a structural schematic diagram of the connecting plate;

[0030] Fig.13 It is a schematic diagram of the connection of back ribs with different cross-section sizes. DETAILED DESCRIPTION

[0031] The technical content of the present utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 3 As shown, the utility model discloses a large-section adjustable column back rib, including four adjustable column back ribs 100 that enclose and connect the concrete column 300 and the template 200. The adjustable column back ribs 100 are made of steel plate, and can be fixed to the template 200 by using double back ribs 100A or single back ribs 100B according to the different cross-sectional sizes of the concrete column 300.

[0033] The specific structure of the adjustable column back rib 100 will be described in detail below.

[0034] First embodiment

[0035] In the first embodiment of the utility model, the adjustable column back rib 100A is a double back rib structure, including a first back rib 11, a second back rib 12, a third back rib 13, and a fourth back rib 14 connected in sequence. Any one of the first back rib 11, the second back rib 12, the third back rib 13, and the fourth back rib 14 can be a single back rib or a double back rib, hereinafter collectively referred to as "back rib". The adjustable column back rib 100A is a single back rib structure, which will be described in detail later.

[0036] like Figures 4 to 7 As shown, the following description will only take the first back rib 11 as an example. The first back rib 11 is a strip structure, including two square tubes 1, a connecting tube 2, an end baffle 3, and a bolt 4. More preferably, the first back rib 11 also includes a plurality of reinforcing blocks 9 welded between the two square tubes 1, such as Figure 5 shown.

[0037] The square tube 1 is a strip-shaped hollow structure with a rectangular cross section (see Figure 7 The two square tubes 1 are arranged vertically and parallelly along the length direction of the square tubes 1 (ie, in the installed state, the two square tubes 1 are parallel in the direction of the horizontal plane).

[0038] like Figure 8 As shown, the connecting tube 2 is a strip-shaped hollow structure, which is clamped at one end of the two square tubes 1 by welding, and the upper and lower surfaces are fixedly connected to the two square tubes 1 respectively. The size of the cross section of the connecting tube 2 is adapted to the square tube 1. In addition, the wall thickness of the side panels of the connecting tube 2 located on the front and rear sides is not only greater than the wall thickness of the square tube 1, but also greater than the wall thickness of the side panels on the upper or lower side of the connecting tube 2, which can meet the requirements of better stability when the corner of the back rib is fixedly connected. A plurality of weight-reducing holes 21 are provided on the upper and lower side panels where the connecting tube 2 is connected to the square tube 1 to reduce the overall weight of the back rib. A plurality of modular holes 22 are provided on the front and rear side panels of the connecting tube 2 to vertically connect a plurality of back ribs (see Figure 3 A plurality of modular holes 22 are distributed along the length direction of the square tube 1.

[0039] like Fig. 9 As shown, the end baffle 3 is arranged at one end away from the connecting pipe 2, and is vertically welded to the two square tubes 1, and a screw hole 30 is opened in the middle. The two screw holes 30 are horizontally symmetrically arranged in the middle of the end baffle 3, and the spacing is the same as the spacing of the modular holes 22 opened on the connecting pipe 2, so that the first back rib 11 can be fixed by passing the bolts through the end baffle 3 into the cavity of the square tube 1. Therefore, during installation, two bolts are passed through the modular hole 22 of one back rib and enter the screw hole 30 of the end baffle 3 of the other back rib. In other words, the modular hole 22 of one back rib and the screw hole 30 of the end baffle 3 of the other back rib are fixed by bolt connection.

[0040] like Fig.10 and Fig.11 As shown, the bolt 4 is a high-strength bolt. Compared with ordinary bolts, the high-strength bolt has the characteristics of high strength, high durability and strong adaptability. It is not easy to break when bearing a larger load, thereby ensuring the stability of the connecting piece. At the same time, the high-strength bolt has a long service life and is not easy to oxidize, rust or corrode. The two bolts 4 pass through the module hole 22 and the screw hole 30 to meet the corner connection requirements of the two back ribs.

[0041] The assembled double back ribs have one end of two square tubes 1 fixedly connected by the upper and lower connecting tubes 2, and the other end is vertically connected by the end baffle 3 to form an integrated structure. During installation, firstly, the modular hole 22 of the connecting tube 2 of the first back rib 11 and the screw hole 30 of the end baffle of the second back rib 12 are vertically connected by bolts 4. Then, the modular hole 22 of the connecting tube of the second back rib 12 and the screw hole 30 of the end baffle of the third back rib 13 are vertically connected by bolts 4; the modular hole 22 of the connecting tube of the third back rib 13 and the screw hole 30 of the end baffle of the fourth back rib 14 are vertically connected by bolts 4; the modular hole 22 of the connecting tube of the fourth back rib 14 and the screw hole 30 of the end baffle 3 of the first back rib 11 are vertically connected by bolts 4. Since the bolts 4 are high-strength bolts, the occurrence of mold expansion can be effectively avoided when fixing large-section columns. The four connected back ribs stably fix the template 200 around the concrete column 100. It should be noted that, since a plurality of modular holes 22 are provided on the connecting pipe 2, the position can be adjusted according to the actual size of the concrete column 300, so that the template 200 can be more stably fixed on the concrete column 100 (such as Figure 2 and Figure 3 When the cross section of the concrete column 300 is too large, a through-wall screw 5 may be added in the middle of the cross section to enhance the stability and firmness of the entire reinforcement system (as shown in FIG. Fig.13 The design of the reinforcing block 9 can further enhance the connection reliability between the plurality of back ribs 11.

[0042] Since there are multiple modular holes 22 in the length direction of the square tube (i.e., the horizontal direction), if the cross-section of the column is large, the end baffle of one back rib is connected to the modular hole of another back rib away from the end baffle by bolts, so that the area of ​​the enclosed cross-section between the four back ribs is increased, which meets the casting requirements of the large-section column; if the cross-section of the column is small, the end baffle of one back rib is connected to the modular hole of another back rib close to the end baffle by bolts, so that the area of ​​the enclosed cross-section between the four back ribs is reduced.

[0043] Second embodiment

[0044] like Fig.12 As shown, the adjustable column back rib 100A in the second embodiment of the present utility model is a double back rib structure, including a square tube 1, a connecting plate 2B, and an end baffle.

[0045] Different from the first embodiment, in this embodiment, the connection pipe 2 is replaced by a connection plate 2B.

[0046] The connecting plate 2B is welded between the two square tubes 1, and its size matches the side wall of the square tube 1. A plurality of modular holes 22B are provided along the length direction. The modular holes 22B are arranged at the same distance, and are used to vertically connect a plurality of back ribs (see Fig.13The back ribs are connected to each other).

[0047] The end baffle is welded to one end of the square tube 1, and a screw hole is horizontally opened in the middle. Therefore, the two back ribs can be fixed by passing the bolt through the end baffle 3 and entering the cavity of the square tube 1. Therefore, during installation, a bolt is passed through the modular hole 22B on the connecting plate 2B of one back rib and enters the screw hole 30 of the end baffle 3 of the other back rib to vertically connect the two back ribs. In other words, the modular hole 22 of one back rib and the screw hole 30 of the end baffle 3 of the other back rib 11 are fixed by bolt connection (refer to Figure 1 ).

[0048] Third embodiment

[0049] In the third embodiment of the utility model, the adjustable column back rib 100B is a single back rib structure, including a square tube and an end baffle. The side of the square tube away from the end baffle is provided with a plurality of modular holes, and the modular holes penetrate two opposite sides of the square tube. The side of the square tube where the modular holes are provided has the same thickness as the aforementioned connecting plate or connecting tube, so that the adjustable column back rib 100B of the single back rib structure and the adjustable column back rib 100A of the double back rib structure can be vertically connected to each other.

[0050] like Fig.13 As shown, the single back rib and the double back rib can also be connected vertically by using the connecting plate 2B or the connecting pipe 2. It should be noted that in actual installation, the modular holes of the single back rib can be used not only to connect vertically with one end of the end baffle of another single back rib, but also to connect vertically with one end of the end baffle of the double back rib. Therefore, the installer can choose double back rib or single back rib for template fixation according to the actual size and strength requirements of each side of the concrete column 300. Because both the single back rib and the double back rib are provided with multiple modular holes, they can meet the fixing requirements of the side template 200 of concrete columns 300 of different sizes. The flexible configuration of the double back rib or the single back rib can not only meet the template fixation of different sides, but also effectively reduce the installation cost.

[0051] In summary, the utility model provides a large-section adjustable column back rib, which is a single back rib or a double back rib. The double back rib includes two square tubes, an end baffle and a connecting tube or a connecting plate, the square tubes are arranged parallel to each other in the length direction; the connecting tube or the connecting plate is welded between the two square tubes, and a plurality of modular holes are opened on the connecting tube or the connecting plate, and the modular holes are distributed along the length direction; the end baffle is vertically welded to one end of the two square tubes. The single back rib includes a square tube and an end baffle, the square tube is provided with modular holes in the length direction, and the end baffle is vertically welded to one end of the two square tubes. The end baffle is provided with a screw hole aligned with the modular hole. The length of the connecting tube is less than or equal to the square tube; the connecting tube is arranged at one end of the square tube; the upper and lower side plates of the connecting tube are welded to one of the square tubes. The thickness of the side plate of the connecting tube is greater than the thickness of the square tube. The end baffle is arranged at one end away from the connecting tube. The length of the connecting plate is less than or equal to the length of the square tube. The connecting plate is located on the side of the square tube away from the end baffle. The height of the side surface of the single-back square tube where the modular hole is arranged is the same as the thickness of the aforementioned connecting plate or connecting tube.

[0052] Therefore, the large-section adjustable column back rib provided by the utility model can fix the templates of concrete columns with different cross-sectional sizes (especially large cross-sectional sizes). In addition, the large-section adjustable column back rib is easy to install and has a high degree of standardization, which effectively improves the standardization rate of the product.

[0053] The above is a detailed description of the large cross-section adjustable column back rib provided by the utility model. For those skilled in the art, any obvious changes made to the utility model without departing from the essence of the utility model will constitute an infringement of the patent right of the present invention and will bear corresponding legal responsibilities.

Claims

1. A large cross-section adjustable column back rib, characterized in that It is single-back or double-back; The double back rib comprises two square tubes, an end baffle and a connecting tube or a connecting plate, wherein the square tubes are arranged in parallel up and down along the length direction; the connecting tube or the connecting plate is welded between the two square tubes, and a plurality of modular holes are opened on the connecting tube or the connecting plate, and the modular holes are distributed along the length direction; the end baffle is vertically welded to one end of the two square tubes; or, The single back rib comprises a square tube and an end baffle, wherein the square tube is provided with a modular hole along the length direction, and the end baffle is vertically welded to one end of the two square tubes; and the end baffle is provided with a screw hole aligned with the modular hole.

2. The large cross-section adjustable column back rib according to claim 1, characterized in that: The length of the connecting pipe is less than or equal to that of the square pipe; the connecting pipe is arranged at one end of the square pipe; and the upper and lower side plates of the connecting pipe are welded to one of the square pipes.

3. The large cross-section adjustable column back rib according to claim 2, characterized in that: The thickness of the side plate of the connecting pipe is greater than the thickness of the square pipe.

4. The large cross-section adjustable column back rib according to claim 3, characterized in that: The end baffle is arranged at an end away from the connecting pipe.

5. The large cross-section adjustable column back rib according to claim 4, characterized in that: There are two screw holes, and the spacing between the screw holes is the same as the spacing between the modular holes.

6. The large cross-section adjustable column back rib according to claim 5, characterized in that: The length of the connecting plate is less than or equal to the length of the square tube.

7. The large cross-section adjustable column back rib according to claim 6, characterized in that: The connecting plate is located on a side of the square tube away from the end baffle.

8. The large cross-section adjustable column back rib according to claim 6, characterized in that: The height of the side surface of the single-back square tube on which the modular hole is arranged is the same as the thickness of the connecting plate or the connecting tube.

9. The large cross-section adjustable column back rib according to any one of claims 1 to 8, characterized in that: The connecting pipe or the connecting plate is connected to the square pipe and the end baffle by bolts, so that the two large-section adjustable column back ribs are vertically connected.

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