Adjustable and reusable support frame for descending plate and hanging mold

Abstract

The utility model discloses an adjustable and reusable descending plate hanging formwork support frame which comprises a descending plate bottom formwork, the descending plate bottom formwork is connected with a cement cushion block in a supporting mode, a supporting nut is prefabricated on the cement cushion block, and the supporting nut is connected with a supporting bolt. The middle of the supporting bolt is connected with a height adjusting nut; the supporting bolt between the lower bottom surface of the height adjusting nut and the upper end surface of the supporting nut is sleeved with an isolating pipe; the side face of the height adjusting nut is fixedly connected with a horizontal supporting bolt, the upper end face of the height adjusting nut is flush with the upper line of the outer circle of the horizontal supporting bolt, the end of the horizontal supporting bolt is in threaded connection with a clamping nut, and the side face of the clamping nut is fixedly connected with a clamping rod. The outer surfaces of the isolation pipe, the height adjusting nut, the horizontal supporting bolt, the clamping nut and the clamping rod are wrapped with an isolation film. The upper part of the supporting bolt and the inner side of the clamping rod are in clamping connection with two side surfaces of the descending plate side template; the horizontal support bolt is in support connection with the bottom surface of the descending plate side template; and the outer sides of the clamping rods are close to the descending plate peripheral beam reinforcing steel bars. Reutilization can be achieved, and the production cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and particularly relates to an adjustable and reusable drop panel suspended formwork support frame. Background Art

[0002] In architectural design, in order to make the floor surface of wet rooms with water such as washrooms and bathrooms lower than that of other floors on the same floor, a drop panel is required. Due to the design of the drop panel, the side formwork of the beam around the drop panel needs to be suspended formwork. However, due to the special requirements of waterproofing in these rooms and the small height of the suspended formwork, it is not easy to reinforce the formwork around the drop panel. Often during the process of pouring concrete, the formwork shifts, resulting in changes in the cross-sectional dimensions of the beam around the drop panel, or causing the concrete pouring of the side formwork of the beam around the drop panel to be not dense. When removing the formwork, it will cause the concrete to chip off, bringing potential hazards to the structure of the building and the subsequent waterproof construction. The quality of the drop panel construction will affect the subsequent secondary structure construction and decoration engineering.

[0003] The authorized announcement number CN204920204U discloses a drop panel suspended formwork support frame, which includes a vertically parallel support vertical fixed section and a drop panel height section. The top of the support vertical fixed section and the drop panel height section is provided with a support horizontal connection section. The lower end of the drop panel height section is provided with a formwork horizontal support section. The formwork horizontal support section is perpendicular to the vertical plane formed by the drop panel height section and the support vertical fixed section. The other end of the formwork horizontal support section is bent downward to form a floor slab thickness section. The floor slab thickness section is parallel to the vertical plane formed by the drop panel height section and the support vertical fixed section. The lower end of the floor slab thickness section is provided with a support horizontal support section. The dimensions of the utility model need to be processed and manufactured according to the dimensions of the beam around the drop panel, the height of the drop panel, and the dimensions of the suspended formwork. When removing the suspended formwork, first cut off the exposed steel bars of this support frame, and then remove the side formwork of the drop panel.

[0004] The authorized announcement number: CN211007644U discloses a suspended formwork support frame. The upper end of the support frame body is provided with a suspension part, and the suspension part is used as a component for connecting the support frame body with the beam around the drop panel. The lower end of the support frame body is provided with a support part, and the support part is fixedly connected with the suspension part through a connecting rib. The support part is provided with a horizontal section, and the horizontal section is used to support and fix a wooden square. The support part includes a first support rib, a second support rib, and a third support rib. The tops of the first support rib, the second support rib, and the third support rib are fixedly connected, and the first support rib, the second support rib, and the third support rib are distributed in a triangle. The bottoms of the first support rib, the second support rib, and the third support rib are all provided with fixing parts, and the fixing parts are used as components for connecting the support frame body with the drop panel formwork. The support part is made of steel bars and is directly poured into the concrete.

[0005] Both of them have the problems of inconvenient processing of the support frame, inconvenient fixation of the side formwork of the dropped slab, and low production efficiency; it is necessary to process and manufacture according to the dimensions of the beams around the dropped slab, the height of the dropped slab, and the size of the suspended formwork. The thickness of the dropped slab cannot be adjusted, and the adaptability is poor; most or all of the support frames remain in the concrete after the side formwork of the dropped slab is removed. The support frames are not detachable and cannot be reused, resulting in relatively high production costs. Summary of the Invention

[0006] The purpose of the present utility model is to provide an adjustable and reusable support frame for the suspended formwork of the dropped slab in view of the above-mentioned deficiencies of the prior art.

[0007] The technical solution of the present utility model is realized in the following way:

[0008] An adjustable and reusable support frame for the suspended formwork of the dropped slab, including the bottom formwork of the dropped slab, the side formwork of the dropped slab, and the steel bars of the beams around the dropped slab. The bottom formwork of the dropped slab is supported and connected to the cement pads. A support nut is prefabricated at the center position of the upper surface of the cement pad. The support nut is coated with grease inside. The support nut is threadedly connected to the support bolt, and a square column is provided at the upper end of the support bolt; a height adjustment nut is threadedly connected to the middle of the support bolt, and an isolation tube is sleeved on the support bolt between the lower bottom surface of the height adjustment nut and the upper end surface of the support nut; a horizontal support bolt is fixedly connected to the side of the height adjustment nut, and the upper end surface of the height adjustment nut is flush with the upper line of the outer circle of the horizontal support bolt. The end of the horizontal support bolt is threadedly connected to a clamping nut, and a clamping rod is fixedly connected to the side of the clamping nut; the outer surfaces of the isolation tube, the height adjustment nut, the horizontal support bolt, the clamping nut, and the clamping rod are wrapped with an isolation film; the upper part of the support bolt and the inner side of the clamping rod are clamped and connected to the two side surfaces of the side formwork of the dropped slab; the horizontal support bolt is supported and connected to the bottom surface of the side formwork of the dropped slab; the outer side of the clamping rod abuts against the steel bars of the beams around the dropped slab.

[0009] The cross-sectional shape of the clamping rod includes a square or a rectangle.

[0010] The present utility model has the following advantages:

[0011] The adjustable and reusable formwork support for dropped slab is fabricated by combining nut, bolt welding and threaded connection, which is convenient for processing. The dropped slab side formwork is clamped between the clamping rod and the support bolt, which is convenient for fixing the dropped slab side formwork and has high production efficiency. The distance between the clamping rod and the support bolt is adjustable, and various dropped slab side formworks can be selected. The height adjusting nut can adjust the distance from the bottom surface of the dropped slab side formwork to the dropped slab bottom formwork, which can meet the requirements of different dropped slab thicknesses and has strong adaptability. The isolation film wrapped on the outer surfaces of the isolation pipe, height adjusting nut, horizontal support bolt, clamping nut and clamping rod facilitates the removal of the horizontal support bolt and the clamping rod. After removing the dropped slab side formwork, the support bolt of the support frame is withdrawn from the support nut and height adjusting nut, the support nut stays in the dropped slab with the cement cushion block, the isolation pipe is taken out from the dropped slab, the horizontal support bolt is taken out from the upper surface of the dropped slab, and the clamping rod is taken out from the side surface of the floor slab, and then it can be reused next time, with low production cost.

[0012] The lubricating grease coated inside the support nut prevents the support nut and the support bolt from solidifying together after concrete pouring, facilitating the removal of the support bolt.

[0013] The design of the cross-sectional shape of the clamping rod as a square or a rectangle or a trapezoid with a shorter inner side length and a longer outer side length is more convenient for taking out the clamping rod from the side surface of the floor slab. Description of the Drawings

[0014] Attached Figure 1 is a structural schematic diagram of the adjustable and reusable formwork support for dropped slab.

[0015] In the figure: 1 - dropped slab bottom formwork, 3 - support nut, 4 - isolation film, 5 - support bolt, 5.1 - square column, 6 - dropped slab side formwork, 7 - clamping rod, 8 - dropped slab perimeter beam steel bars, 9 - house horizontal plane, 10 - clamping nut, 11 - horizontal support bolt, 12 - height adjusting nut, 13 - dropped slab, 13.1 - dropped slab horizontal plane, 14 - isolation pipe, 15 - cement cushion block, H1 - height of dropped slab reduction, H2 - thickness of dropped slab. Detailed Embodiments

[0016] The present utility model will be further described below in conjunction with the accompanying drawings.

[0017] As attached Figure 1As shown in the figure, an adjustable and reusable formwork support for sunken slabs includes a sunken slab bottom formwork 1, a sunken slab side formwork 6, and sunken slab peripheral beam steel bars 8. The sunken slab bottom formwork 1 is supported and connected to cement pads 15. A support nut 3 is prefabricated at the center position of the upper surface of the cement pad 15. The support nut 3 is coated with grease inside. The support nut 3 is threadedly connected to a support bolt 5. A square column 5.1 is provided at the upper end of the support bolt 5. A height adjustment nut 12 is threadedly connected to the middle of the support bolt 5. An isolation tube 14 is sleeved on the support bolt 5 between the lower bottom surface of the height adjustment nut 12 and the upper end surface of the support nut 3. A horizontal support bolt 11 is fixedly connected to the side surface of the height adjustment nut 12. The upper end surface of the height adjustment nut 12 is flush with the upper line of the outer circle of the horizontal support bolt 11. The end of the horizontal support bolt 11 is threadedly connected to a clamping nut 10. A clamping rod 7 is fixedly connected to the side surface of the clamping nut 10. An isolation film 4 is wrapped around the outer surfaces of the isolation tube 14, the height adjustment nut 12, the horizontal support bolt 11, the clamping nut 10, and the clamping rod 7. The upper part of the support bolt 5 and the inner side of the clamping rod 7 are clamped and connected to both side surfaces of the sunken slab side formwork 6. The horizontal support bolt 11 is supported and connected to the bottom surface of the sunken slab side formwork 6. The outer side of the clamping rod 7 abuts against the sunken slab peripheral beam steel bar 8. The adjustable and reusable formwork support for sunken slabs is fabricated by a combination of nut, bolt welding, and threaded connection methods, which is convenient for processing. The sunken slab side formwork is clamped between the clamping rod and the support bolt, which is convenient for fixing the sunken slab side formwork and has high production efficiency. The distance between the clamping rod and the support bolt is adjustable, and various sunken slab side formworks can be selected. The height adjustment nut adjusts the distance from the bottom surface of the sunken slab side formwork to the sunken slab bottom formwork, which can meet the requirements of different sunken slab thicknesses and has strong adaptability. The isolation film wrapped around the outer surfaces of the isolation tube, the height adjustment nut, the horizontal support bolt, the clamping nut, and the clamping rod facilitates the removal of the horizontal support bolt and the clamping rod. After removing the sunken slab side formwork, the support bolt of the formwork support is withdrawn from the support nut and the height adjustment nut, the support nut stays in the sunken slab with the cement pad, the isolation tube is taken out of the sunken slab, the horizontal support bolt is taken out from the upper surface of the sunken slab, and the clamping rod is taken out from the side surface of the floor slab, and it can be reused next time, with low production cost.

[0018] The cross-sectional shape of the clamping rod 7 includes a square or a rectangle. The design of the square or rectangular cross-sectional shape of the clamping rod is more convenient for the clamping rod to be taken out from the side surface of the floor slab.

[0019] The usage method of the present utility model is as follows:

[0020] 1. Connection between the support bolt and the support nut: The cement pad 15 is placed on the sunken slab bottom formwork 1, and the lower end of the support bolt 5 is connected to the support nut 3;

[0021] 2. Adjust the height: According to the design requirements of the sunken slab, the isolation tube 14 is sleeved on the support bolt 5, and the height adjustment nut 12 is rotated so that the distance from the upper surface of the height adjustment nut 12 to the upper surface of the sunken slab bottom formwork 1 is the same as the thickness H2 of the sunken slab;

[0022] 3. Adjust the width: Select the formwork on the side of the dropped slab with the same thickness as the height H1 by which the dropped slab is lowered. Rotate the clamping nut 10 according to the width of the formwork on the side of the dropped slab 1 so that the distance between the clamping rod 7 and the support bolt 5 is the same as the width of the formwork on the side of the dropped slab.

[0023] 4. Wrap the isolation film: Wrap the isolation film 4 around the outer surfaces of the isolation pipe 14, the height adjustment nut 12, the horizontal support bolt 11, the clamping nut 10, and the clamping rod 7.

[0024] 5. Clamp the formwork: Clamp the formwork on the side of the dropped slab 6 between the clamping rod 7 and the support bolt 5. The horizontal support bolt 11 is connected to support the bottom surface of the formwork on the side of the dropped slab 6, and the outside of the clamping rod 7 abuts against the reinforcement bar 8 of the perimeter beam around the dropped slab.

[0025] 6. Pour the concrete: Pour the concrete so that the horizontal plane 9 of the house is flush with the upper end surface of the formwork on the side of the dropped slab 6, and the horizontal plane 13.1 of the dropped slab is flush with the lower end surface of the formwork on the side of the dropped slab 6.

[0026] 7. Dismantle the formwork for reuse: After the concrete strength reaches the requirement, use a wrench to hold the square column 5.1 and rotate it so that the support bolt 5 withdraws from the support nut 3 and the height adjustment nut 12 for reuse next time; take out the isolation pipe 14 from the dropped slab 13 for reuse next time; remove the formwork on the side of the dropped slab 6; take out the horizontal support bolt 11 from the upper surface of the dropped slab 13 for reuse next time, and take out the clamping rod 7 from the side surface of the floor slab for reuse next time; the support nut 3 remains in the dropped slab 13 together with the cement cushion block 15.

[0027] Through the above specific implementation manners in the form of embodiments, the present utility model has been described in detail, but it should not be understood that the above subject scope of the present utility model is limited to the above specific implementation manners. All technologies implemented based on the above content of the present utility model belong to the scope of the present utility model.

Claims

1. An adjustable and reusable drop plate hanging formwork support frame, including a drop plate bottom formwork, a drop plate side formwork, and drop plate peripheral beam reinforcement, characterized in that: The bottom formwork of the drop plate is supported and connected with a cement pad. A supporting nut is prefabricated at the center of the upper surface of the cement pad. Grease is applied inside the supporting nut. The supporting nut is threadedly connected to the supporting bolt, and a square column is arranged on the upper end of the supporting bolt. The middle part of the supporting bolt is threadedly connected to the height adjustment nut, and an isolation tube is installed on the supporting bolt between the lower bottom surface of the height adjustment nut and the upper end surface of the supporting nut. The side of the height adjustment nut is fixedly connected to the horizontal supporting bolt, and the upper end surface of the height adjustment nut is flush with the upper line of the outer circle of the horizontal supporting bolt. The end of the horizontal supporting bolt is threadedly connected to the clamping nut, and the side of the clamping nut is fixedly connected to the clamping rod. The outer surfaces of the isolation tube, height adjustment nut, horizontal support bolt, clamping nut and clamping rod are wrapped with an isolation film. The upper part of the supporting bolt and the inner side of the clamping rod are clamped and connected to the two side surfaces of the drop plate side formwork. The horizontal supporting bolt is supported and connected to the bottom surface of the drop plate side formwork; the outer side of the clamping rod is close to the steel bars of the surrounding beam of the drop plate.

2. The adjustable and reusable drop plate hanging formwork support frame according to claim 1 is characterized in that: The cross-section of the clamping rod may be in the shape of a square or a rectangle.

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