A hoop for fixing a template and a fixing method thereof

Abstract

The present invention discloses a hoop for fixing a template, comprising a first template (2), a second template (3), a steel belt (5), and a threaded steel bar (9), wherein two ends of the steel belt (5) are respectively installed with a short-limbed threaded steel pipe with an internal thread; two templates are spliced ​​to form a hollow cylinder, the steel belt (5) is sleeved on the outer surface of the hollow cylinder, and the threaded steel bar (9) sequentially passes through the two short-limbed threaded steel pipes to fix the hollow cylinder. The fixing method of the hoop for fixing the template comprises the following steps: splicing two templates with an isolation agent applied on the inner sides to form a hollow cylinder; sleeve a plurality of steel belts (5) on the outer surface of the hollow cylinder, and pass the threaded steel bar (9) through the two short-limbed threaded steel pipes; respectively hanging the two ends of a disc clamp (8) on the inner side of the steel belt (5); and screwing a nut (11) to make the disc clamp (8) close to a short-limbed threaded steel pipe. The present invention is simple to manufacture and can reduce construction costs.

Description

Technical Field

[0001] The invention belongs to the technical field of fixing devices, and in particular relates to a hoop for fixing a template and a fixing method thereof. Background Art

[0002] In modern architecture, for the sake of aesthetics, many buildings use cylindrical columns. The conventional construction method is to assemble two semi-cylindrical wooden formworks and then use steel wire to tie and fix them, and then pour concrete on site in sections. This construction method of assembling two semi-cylindrical wooden formworks and then tying and fixing them with steel wires and then pouring concrete on site in sections is prone to mold expansion when the formwork is not firmly fixed, and the poured concrete columns need to be reworked and leveled. The tying steel wire cannot be reused, which increases construction costs and affects the smooth implementation of construction progress, quality and safety. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a template fixing hoop and a fixing method thereof which are simple to manufacture and can reduce construction costs and improve firmness.

[0004] The present invention adopts the following technical solutions:

[0005] A hoop for fixing a template, characterized in that the hoop for fixing the template comprises a first template (2), a second template (3), a steel strip (5), and a threaded steel bar (9); the shape of the first template (2) and the shape of the second template (3) are both hollow semi-cylinders, and the size of the first template (2) matches the size of the second template (3); a first short-limbed steel pipe (6) with an internal thread is installed at one end of the steel strip (5), and a second short-limbed steel pipe (7) with an internal thread is installed at the other end of the steel strip (5); The positions of the short-limb threaded steel pipe (6) and the second short-limb threaded steel pipe (7) on the steel belt (5) are flush; the threads of the threaded steel bar (9) match the internal threads of the first short-limb threaded steel pipe (6) and the second short-limb threaded steel pipe (7); the first template (2) and the second template (3) are spliced ​​to form a hollow cylinder, the steel belt (5) is sleeved on the outer surface of the hollow cylinder, and the threaded steel bar (9) passes through the first short-limb threaded steel pipe (6) and the second short-limb threaded steel pipe (7) in sequence to fix the hollow cylinder.

[0006] According to the above-mentioned template fixing hoop, it is characterized in that a disc clamp (8) and a nut (11) are installed on the threaded steel bar (9), a through hole is processed in the middle of the disc clamp (8), and the threaded steel bar (9) passes through the through hole processed in the middle of the disc clamp (8); the disc clamp (8) is located between the first short-leg threaded steel pipe (6) and the nut (11), or the disc clamp (8) is located between the second short-leg threaded steel pipe (7) and the nut (11).

[0007] According to the above-mentioned template fixing hoop, it is characterized in that an operating handle (10) is installed at one end of the threaded steel bar (9).

[0008] According to the above-mentioned template fixing hoop, it is characterized in that the material of the first template (2) and the material of the second template (3) are both wood.

[0009] According to the above-mentioned template fixing hoop, it is characterized in that the cross-sectional shape of the disc clamp (8) is a crescent shape.

[0010] According to the above-mentioned template fixing hoop, it is characterized in that a plurality of steel strips (5) are sleeved on the outer surface of the hollow cylinder at equal intervals.

[0011] A fixing method based on the above template fixing hoop, characterized in that the method comprises the following steps:

[0012] Step (1): Apply a release agent to the inner side of the first template (2) and the inner side of the second template (3);

[0013] Step (ii): splicing the first template (2) and the second template (3) to form a hollow cylinder with two template joint seams (4);

[0014] Step (iii): a plurality of steel strips (5) are mounted on the outer surface of the hollow cylinder at intervals of 0.5 m to 0.9 m, a threaded steel bar (9) is mounted on each steel strip (5), and one end of the threaded steel bar (9) is inserted and screwed through the first short-limb threaded steel pipe (6) and the second short-limb threaded steel pipe (7);

[0015] Step (four): When the threaded steel bar (9) is close to being inscribed in the steel belt (5), the two ends of the disc clamp (8) are respectively hung on the inner side of the steel belt (5);

[0016] Step (five): Screw the nut (11) to make the disc clamp (8) close to the first short-limb threaded steel pipe (6) or the second short-limb threaded steel pipe (7).

[0017] Beneficial technical effects of the present invention: the present invention adds short-limb steel pipes to the annular steel belt, and achieves the purpose of fixing the formwork through arc-shaped disc clamps and threaded steel fastening. The hoop of the present invention is simple to process and manufacture, and the concrete pouring construction operation is convenient and fast. It is safe and stable, reusable, and low-cost, which can avoid rework, reduce construction costs, and improve construction efficiency. The present invention is suitable for concrete pouring construction of buildings with cylindrical outer diameters of various specifications, and can solve the current construction difficulties of circular column concrete pouring, which is prone to mold expansion and requires rework, and has safety hazards, ensuring the safety of structural engineering and the smooth implementation of construction progress and quality, and achieving the social and economic benefits of safe construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the assembly of the threaded steel bar and the disc clamp of the present invention. DETAILED DESCRIPTION

[0020] See also Figure 1-2 A hoop for fixing a template of the present invention comprises a first template 2, a second template 3, a steel strip 5, and a threaded steel bar 9. The shapes of the first template 2 and the second template 3 are both hollow semi-cylinders, and the size of the first template 2 matches the size of the second template 3; a first short-limb threaded steel pipe 6 with an internal thread is installed at one end of the steel strip 5, and a second short-limb threaded steel pipe 7 with an internal thread is installed at the other end of the steel strip 5. The positions of the first short-limb threaded steel pipe 6 and the second short-limb threaded steel pipe 7 on the steel strip 5 are flush; the threads of the threaded steel bar 9 match the internal threads of the first short-limb threaded steel pipe 6 and the internal threads of the second short-limb threaded steel pipe 7; the first template 2 and the second template 3 are spliced ​​to form a hollow cylinder, and a plurality of steel strips 5 are equidistantly mounted on the outer surface of the hollow cylinder, and the threaded steel bar 9 passes through the first short-limb threaded steel pipe 6 and the second short-limb threaded steel pipe 7 in sequence to fix the hollow cylinder. The threaded steel bar 9 is installed with a disc clamp 8 and a nut 11. A through hole is processed in the middle of the disc clamp 8, and the threaded steel bar 9 passes through the through hole processed in the middle of the disc clamp 8; the disc clamp 8 is located between the first short-limb threaded steel pipe 6 and the nut 11, or the disc clamp 8 is located between the second short-limb threaded steel pipe 7 and the nut 11. The cross-sectional shape of the disc clamp 8 is crescent-shaped. An operating handle 10 is installed at one end of the threaded steel bar 9. The material of the first template 2 and the material of the second template 3 are both wood.

[0021] The fixing method of the template fixing hoop of the present invention comprises the following steps:

[0022] Step (a): Apply a release agent to the inner side of the first template 2 and the inner side of the second template 3;

[0023] Step (ii): assembling and splicing the first template 2 and the second template 3 to form a hollow cylinder with two template joints (4);

[0024] Step (iii): a plurality of steel strips 5 are mounted on the outer surface of the hollow cylinder at intervals of 0.5 m to 0.9 m, a threaded steel bar 9 is mounted on each steel strip 5, and one end of the threaded steel bar 9 is inserted and screwed through the first short-limb threaded steel pipe 6 and the second short-limb threaded steel pipe 7;

[0025] Step (four): When the threaded steel bar 9 is close to being inscribed in the steel belt 5, the operator manually pushes the arc-shaped perforated disc clamp 8 inserted into the horizontal threaded steel bar 9, so that one end of the disc clamp 8 is hung on the inner side of the steel belt 5, and one side of the disc clamp 8 is tangent to the first short-limb threaded steel pipe 6 or the second short-limb threaded steel pipe 7 for preliminary fixation;

[0026] Step (five): Screw the nut 11 to make the disc clamp 8 close to the first short-limb threaded steel pipe 6 or the second short-limb threaded steel pipe 7. The nut 11 is close to the other side of the disc clamp 8; the set steel belt 5 can be inscribed in the two assembled templates and fixed immovably, completing the final fixation of the assembled template. According to step (iii) to step (v), complete the screwing and fixing of the other steel strips 5 installed on the assembled spliced ​​template; after screwing and fixing, complete the assembly and fixing of the structural column templates at other positions of this construction section of the project; according to the principle of flow section construction, batch concrete is poured on-site into the assembled and fixed hollow cylindrical templates; after the curing period is reached, reversely screw the loose nut 11, pull the disc clamp 8, and reversely screw the threaded steel bar 9 to loosen the steel strip 5; pull out the installed steel strip 5; disassemble the assembled template; install the disassembled template and the template fixing hoop on the upper column body construction of the circular column in this construction area or the concrete pouring construction of the circular column in the next construction section until the concrete pouring construction of all circular columns required for the project is completed.

[0027] The specific implementation of the template fixing hoop of the present invention is as follows:

[0028] 1. Production of hoop rings for fixing the formwork: According to the design requirements of the outer diameter of the cast-in-place concrete cylinder 1 and the height of the segmented casting, the first formwork 2 and the second formwork 3 that can be inscribed on the column height surface of the cast-in-place concrete cylinder 1 are rolled and processed respectively, and multiple groups of such hollow semi-cylindrical wooden formworks are processed in batches;

[0029] Second, the first template 2 and the second template 3 are assembled to form two vertical template joints 4, and according to the outer diameter of the hollow cylinder formed by the assembly, a plurality of annular steel strips 5 with a small distance between the two ends are batch-sintered and processed, and the thickness of the steel strips 5 is 0.8 mm to 2.5 mm;

[0030] 3. According to the height size of the processed annular steel strip 5, a plurality of short-limb steel pipes of the corresponding outer diameter are cut in batches and the inner walls are threaded. The first short-limb threaded steel pipe 6 and the second short-limb threaded steel pipe 7 are horizontally welded to the outer surfaces of both ends of the plurality of annular steel strips 5, that is, the first short-limb threaded steel pipe 6 and the second short-limb threaded steel pipe 7 are respectively added to the outer sides of both ends of each steel strip 5;

[0031] Fourth, according to the inner diameter size and threading pattern of the first short-limb threaded steel pipe 6 and the second short-limb threaded steel pipe 7, matching threaded steel bars are selected, and multiple pieces are cut in batches as horizontal threaded steel bars 9;

[0032] 5. A section of steel pipe is vertically welded to one end of the threaded steel bar 9 as an operating handle 10;

[0033] Sixth, batch cutting and simmering processing: the four sides of the arc top can vertically cut the steel plate (thickness of 2.5-4 mm) with a hole in the middle of the stopper as an arc-shaped perforated disc clamp 8;

[0034] 7. Insert the matching nut 11 and the through hole of the arc-shaped perforated disc clamp 8 from the other end of the threaded steel bar 9 in sequence, screw them and place them near the end of the threaded steel bar 9 with the operating handle 10, and complete the processing and production of the hoop for fixing the template.

Claims

1. A hoop for fixing a template, characterized in that: The template fixing hoop comprises a first template (2), a second template (3), a steel strip (5), and a threaded steel bar (9). The shapes of the first template (2) and the second template (3) are both hollow semi-cylinders, and the size of the first template (2) matches the size of the second template (3). A first short-limbed steel pipe (6) with internal threads is installed at one end of the steel strip (5), and a second short-limbed steel pipe (7) with internal threads is installed at the other end of the steel strip (5). The positions of the first short-limbed steel pipe (6) and the second short-limbed steel pipe (7) on the steel strip (5) are flush. The threads of the threaded steel bar (9) match the internal threads of the first short-limbed steel pipe (6) and the second short-limbed steel pipe (7). The first template (2) and the second template (3) are spliced ​​to form a hollow cylinder, and the steel strip (5) is sleeved on the outer surface of the hollow cylinder. The threaded steel bar (9) passes through the first short-limb threaded steel pipe (6) and the second short-limb threaded steel pipe (7) in sequence to fix the hollow cylinder; a disc clamp (8) and a nut (11) are installed on the threaded steel bar (9); the cross-sectional shape of the disc clamp (8) is crescent-shaped, and a through hole is processed in the middle of the disc clamp (8), and the threaded steel bar (9) passes through the through hole processed in the middle of the disc clamp (8); the disc clamp (8) is located between the first short-limb threaded steel pipe (6) and the nut (11), or the disc clamp (8) is located between the second short-limb threaded steel pipe (7) and the nut (11), one end of the disc clamp (8) is hung on the inner side of the steel belt (5), one side of the disc clamp (8) is tangent to the first short-limb threaded steel pipe (6) or the second short-limb threaded steel pipe (7), and the nut (11) is close to the other side of the disc clamp (8); an operating handle (10) is installed at one end of the threaded steel bar (9).

2. The template fixing hoop according to claim 1, characterized in that: The material of the first template (2) and the material of the second template (3) are both wood.

3. The template fixing hoop according to claim 1, characterized in that: A plurality of steel strips (5) are sleeved on the outer surface of the hollow cylinder at equal intervals.

4. A method for fixing a template fixing hoop according to any one of claims 1 to 3, characterized in that: The method comprises the following steps: Step (1): Apply a release agent to the inner side of the first template (2) and the inner side of the second template (3); Step (ii): splicing the first template (2) and the second template (3) to form a hollow cylinder with two template joint seams (4); Step (iii): a plurality of steel strips (5) are mounted on the outer surface of the hollow cylinder at intervals of 0.5 m to 0.9 m, a threaded steel bar (9) is mounted on each steel strip (5), and one end of the threaded steel bar (9) is inserted and screwed through the first short-limb threaded steel pipe (6) and the second short-limb threaded steel pipe (7); Step (four): When the threaded steel bar (9) is close to being inscribed in the steel belt (5), the two ends of the disc clamp (8) are respectively hung on the inner side of the steel belt (5); Step (five): Screw the nut (11) to make the disc clamp (8) close to the first short-limb threaded steel pipe (6) or the second short-limb threaded steel pipe (7).

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