Formwork system for sill coping casting construction

Abstract

A kind of formwork system for sill coping pouring construction, the pouring space between two formwork bodies is provided with the coping reinforcement system composed of screw thread reinforcement and hoop, a plurality of positioning components are provided with equal interval between two formwork bodies, the U-shaped frame body of positioning component is sleeved between the outer side surface of two formwork bodies, through hole is provided with equal interval in the middle of two side legs of U-shaped frame body, long screw rod is inserted between two through holes;Radial square insertion hole is provided with end of long screw rod, outer end of square insertion hole is located above the end surface of formwork body, right-angled trapezoidal insert piece is inserted in square insertion hole, vertical side surface of right-angled trapezoidal insert piece is attached to inner end surface of square insertion hole, oblique side surface of right-angled trapezoidal insert piece is pressed on the upper part of inner side surface of formwork body;The oblique side surface of right-angled trapezoidal insert piece of the formwork system can gradually press the upper part of formwork body, press the formwork body from inside, avoid the phenomenon that side formwork is partially inclined to inside, ensure the consistency of thickness after sill coping pouring, effectively improve the pouring quality of sill coping.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a formwork system for pouring concrete for window sills. Background Technology

[0002] Current window sill construction uses a modular structure. The main body of the window sill is built with blocks, and after the main body is completed, a capping is formed at the top by pouring concrete to fix the blocks together as one unit. This method can reduce costs while ensuring construction quality.

[0003] Currently, the construction of the coping is typically carried out using a wooden formwork system. This type of formwork is generally reinforced with tie bolts. To prevent the side formwork from bulging during concrete pouring, tie bolts are used for reinforcement. Holes are drilled in the side formwork, tie bolts are inserted, and nuts are tightened at both ends of the bolts. The tension of the tie bolts resists the lateral pressure of the concrete. This reinforcement structure only considers the problem of formwork bulging. During on-site construction, the formwork often tilts inward in some areas, resulting in uneven pouring space between different parts of the formwork along the length of the windowsill. This leads to uneven thickness of the windowsill coping after pouring, affecting the pouring quality and requiring improvement. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a formwork system for the construction of a window sill coping.

[0005] The technical solution of this utility model is: a formwork system for the construction of a window sill coping, comprising formwork bodies symmetrically arranged on both sides of the top of the masonry window sill along the length direction, a coping reinforcement system composed of threaded steel bars and hoops is provided in the pouring space between the two formwork bodies, the hoop is a U-shaped structure, its lower end is supported on the surface of the masonry block, and a number of positioning components are provided at equal intervals between the two formwork bodies, the positioning components including a U-shaped frame and a long screw, the U-shaped frame is fitted between the outer sides of the two formwork bodies, the U-shaped frame is made of square timber joined together, and through holes are provided in the middle of the two side legs of the U-shaped frame, the long screw is inserted between the two through holes, the long screw can slide freely in the through holes, and a sliding sleeve can be fitted in the through holes so that the long screw is fitted in the sliding sleeve, and a washer and nut are fitted on the part of the long screw that extends out of the outer side of the side leg, the nut pressing the washer against the outer side of the side leg.

[0006] Preferably, the end of the long screw is provided with a square insertion hole in the radial direction. The outer end of the square insertion hole is located above the end face of the template body, and the inner end is located in the casting space. A right-angled trapezoidal insert is inserted into the square insertion hole. The narrow end of the insert is inserted into the square insertion hole, and the upper end of the right-angled trapezoidal insert protrudes from the square insertion hole to a certain height. The vertical side of the right-angled trapezoidal insert is in contact with the inner end face of the square insertion hole, and the oblique side of the right-angled trapezoidal insert presses against the upper part of the inner side of the template body. The right-angled trapezoidal insert is an aluminum sheet.

[0007] Preferably, the middle part of the long screw is fitted with a plastic sleeve, and the two ends of the sleeve are spaced apart from the inner sides of the two legs of the U-shaped frame to ensure that it can rotate freely.

[0008] Preferably, the end of the capping reinforcement system extends into the interior of the structural column reinforcement system between the partition walls, and is arranged alternately with the vertical reinforcement of the structural column reinforcement system.

[0009] Preferably, two pads are arranged side by side in front of the side legs of the U-shaped frame and the outer side of the template body. The pads are made of square wood and are arranged along the length of the template body. The upper pad is close to the upper end face of the template body, and the lower pad is close to the lower end face of the template body.

[0010] Preferably, the long screw is supported on the upper surface of the template body, thereby supporting the U-shaped frame as a whole.

[0011] The beneficial technical effects of this utility model are:

[0012] (1) The present invention provides a square insertion hole on the long screw between the side legs of the U-shaped frame. A right-angled trapezoidal insert is inserted into the square insertion hole. As the insertion depth of the right-angled trapezoidal insert increases, the inclined side of the right-angled trapezoidal insert can gradually press against the upper part of the template body, press the template body from the inside, avoid the phenomenon of local inward tilting of the side template, ensure the consistency of the thickness after the window sill coping is poured, and effectively improve the pouring quality of the window sill coping.

[0013] (2) The sleeve of this utility model is used to form a rolling guide between the concrete pouring surface and the long screw, so as to avoid the phenomenon of hard friction between the trowel and the long screw when the trowel is leveling the concrete surface, reduce its movement resistance, and improve the smoothness and construction efficiency of the trowel leveling operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0016] Figure 3 This is a three-dimensional structural diagram of the present invention after removing the partition wall and the reinforcement system of the structural column;

[0017] Figure 4 yes Figure 3 A schematic diagram of the AA-direction cross-section structure;

[0018] Figure 5 This is a three-dimensional structural diagram of the positioning component of this utility model.

[0019] In the diagram, 1. Block window sill, 2. Formwork body, 21. Threaded steel bar, 22. Hoop, 3. Positioning component, 31. U-shaped frame, 311. Side support leg, 32. Long threaded rod, 33. Washer, 34. Nut, 35. Square insertion hole, 36. Right-angled trapezoidal insert, 37. Sleeve, 4. Partition wall, 41. Structural column reinforcement system, 5. Pad plate. Detailed Implementation

[0020] Example 1, see appendix Figure 1-3 A formwork system for pouring concrete for a window sill includes formwork bodies 2 symmetrically arranged on both sides of the top of a block window sill 1 along its length. A coping reinforcement system consisting of threaded steel bars 21 and hoops 22 is provided in the pouring space between the two formwork bodies 2. This coping reinforcement system is fixedly connected to the main body of the block window sill 1. Several positioning components 3 are evenly spaced between the two formwork bodies 2, which fix the two formwork bodies 2 to the top of the block window sill 1. The positioning components 3 include a U-shaped frame 31 and a long screw 32. The U-shaped frame 31 fits into the two formwork bodies 2. Between the outer sides of the U-shaped frame 31, there are through holes in the middle of the two side legs 311. The long screw 32 is inserted between the two through holes. The part of the long screw 32 that extends out of the outer side of the side leg 311 is fitted with a washer 33 and a nut 34. The nut presses the washer against the outer side of the side leg. The tightening force generated by the nuts 34 at both ends presses the side leg 311 inward, and the side leg is pressed against the outer side of the template body 2. The long screw 32 supports the upper end face of the template body 2 and plays a role in vertically limiting the U-shaped frame 31, so that it is in an accurate fixed position.

[0021] The end of the coping reinforcement system extends into the interior of the structural column reinforcement system 41 between the partition walls 4. This design connects the window sill coping and the structural column into one unit, and the structural column provides auxiliary fixed support for the window sill coping to ensure its stability.

[0022] The long screw 32 is fitted with a plastic sleeve 37 in the middle of its rotating part. The sleeve is used to form a rolling guide between the concrete pouring surface and the long screw 32, so as to avoid the phenomenon of hard friction between the trowel and the long screw 32 when leveling the concrete surface, reduce its movement resistance, and improve the smoothness and construction efficiency of the trowel leveling operation.

[0023] Two pads 5 are arranged side by side in front of the side support legs 311 of the U-shaped frame 31 and the outer side of the template body 2. The upper pad is close to the upper end face of the template body, and the lower pad 5 is close to the lower end face of the template body 2. The square timber plays the role of flattening the outer side of the template body 2, which helps to improve the flatness of the template body 2.

[0024] Example 2, see appendix Figure 3-5This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that: the end of the long screw 32 is provided with a square insertion hole 35 along the radial direction. The outer end of the square insertion hole is located above the end face of the template body 2, and the inner end is located in the casting space. A right-angled trapezoidal insert 36 is inserted into the square insertion hole 35. The length of the right-angled trapezoidal insert 36 is greater than the diameter of the long screw 32, and the length and width of the right-angled trapezoidal insert are greater than the length of the square insertion hole 35 to prevent the right-angled trapezoidal insert 36 from falling off. The vertical side of the right-angled trapezoidal insert is in contact with the inner end face of the square insertion hole, and the oblique side of the right-angled trapezoidal insert 36 presses against the upper part of the inner side of the template body 2.

[0025] During the installation of the formwork system for the window sill coping construction in this embodiment, after the formwork body 2 is placed in place, the U-shaped frame 31 is vertically fitted between the outer sides of the two formwork bodies 2. Then, long screws 32 are inserted into the through holes between the two side legs 311, and washers 33 and nuts 34 are installed to tighten the side legs 311, thus initially fixing the formwork body 2. Then, right-angled trapezoidal inserts 36 are inserted into the square insertion holes 35. As the insertion depth of the right-angled trapezoidal inserts increases, the inclined side of the right-angled trapezoidal inserts 36 can gradually press against the upper part of the formwork body 2, pressing the formwork body 2 from the inside, avoiding the phenomenon of local inward tilting of the side formwork, and ensuring the consistency of the thickness after the window sill coping is poured.

Claims

1. A formwork system for pouring concrete for window sill coping, characterized in that: The system includes symmetrically arranged templates on both sides of the top of the block window sill along the length direction. The casting space between the two templates is equipped with a top reinforcement system consisting of threaded steel bars and hoops. Several positioning components are evenly spaced between the two templates. The positioning components include a U-shaped frame and a long screw. The U-shaped frame is fitted between the outer sides of the two templates. There are through holes in the middle of the two legs of the U-shaped frame. The long screw is inserted between the two through holes. A washer and a nut are fitted on the part of the long screw that extends out of the outer side of the side leg. The nut presses the washer against the outer side of the side leg.

2. The formwork system for pouring concrete for window sill capping as described in claim 1, characterized in that: The end of the long screw is provided with a square insertion hole in the radial direction. The outer end of the square insertion hole is located above the end face of the template body, and the inner end is located in the casting space. A right-angled trapezoidal insert is inserted into the square insertion hole. The vertical side of the right-angled trapezoidal insert is in contact with the inner end face of the square insertion hole, and the oblique side of the right-angled trapezoidal insert presses against the upper part of the inner side of the template body.

3. The formwork system for pouring concrete for window sill capping according to claim 2, characterized in that: The middle part of the long screw is fitted with a plastic sleeve.

4. The formwork system for pouring concrete for window sill capping according to claim 1, characterized in that: The ends of the capping reinforcement system extend into the structural column reinforcement system between the partition walls.

5. A formwork system for pouring concrete for window sill capping according to claim 1, characterized in that: Two pads are arranged side by side in front of the side legs of the U-shaped frame and the outer side of the template body. The upper pad is close to the upper end face of the template body, and the lower pad is close to the lower end face of the template body.

6. The formwork system for pouring concrete for window sill capping according to claim 1, characterized in that: The long screw is supported on the upper surface of the template body.

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