Stair template node structure

Abstract

The utility model discloses a stair formwork node structure. The stair formwork node structure comprises a lower-layer stair and a lower-layer stair, the bottom of the stair bottom die is connected and clung to the lower-layer stair; back battens are installed on the back of the stair bottom die. The lap joint block is located between the bottom of the back batten and the lower-layer staircase, stable stress conduction between the bottom of the back batten and the lower-layer staircase can be achieved through the lap joint block, the lap joint block is lifted, limited and kept stable through the towing bracket plate, and the problem that stable stress conduction cannot be achieved due to the fact that a gap is formed between the bottom of the back batten and the lower-layer staircase is solved.

Description

Technical Field

[0001] The utility model relates to a stair formwork node structure, belonging to the field of construction technology. Background Art

[0002] Before pouring the stairs, it is necessary to first set up the stair formwork to construct the building space. When pouring concrete for the stair formwork, the stair bottom formwork (see the Chinese patent publication number CN106988529B) bears a relatively large weight load of the concrete.

[0003] For the force stability of the stair bottom formwork, sometimes it is necessary to add back wooden squares at the back of the stair bottom formwork for strengthening. After the back wooden squares are supported by the jacks, there is a problem that there is a gap between the bottom of the back wooden squares and the lower stairs and stable force conduction cannot be carried out. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a stair formwork node structure.

[0005] The utility model is achieved through the following technical solutions.

[0006] A stair formwork node structure provided by the utility model includes:

[0007] The lower stairs;

[0008] A stair bottom formwork with its bottom connected and closely attached to the lower stairs;

[0009] Back wooden squares are installed on the back of the stair bottom formwork.

[0010] A drag plate is sleeved on the lower stairs, and the drag plate is tightly installed on the lower stairs through a tightening bolt; a lapping block is installed between the bottom of the back wooden square and the lower stairs, and the lapping block is supported by the drag plate.

[0011] An anchor is installed on the lower stairs, and a pull rod is installed in contact with the anchor.

[0012] Horizontal rods are fixedly arranged at intervals on the pull rod, a back plate is fixed to the horizontal rods, and a step formwork is fixed to the back plate.

[0013] Back wooden squares are installed on the back of the stair bottom formwork, a jack is installed on the back wooden square, and the jack is supported to the ground through a support rod.

[0014] The beneficial effect of the utility model lies in that: the lapping block is located between the bottom of the back wooden square and the lower stairs, enabling the bottom of the back wooden square to conduct stable force through the lapping block with the lower stairs, and the lapping block is supported and limited by the drag plate to maintain stability, solving the problem that there is a gap between the bottom of the back wooden square and the lower stairs and stable force conduction cannot be carried out. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the present utility model;

[0016] In the figure: 1 - lower staircase; 2 - ground anchor; 3 - tie rod; 4 - horizontal rod; 5 - back plate; 6 - step formwork; 7 - bottom formwork of staircase; 8 - backing wooden square; 9 - jack; 10 - support rod; 11 - ground; 12 - cast-in-place concrete staircase; 13 - towing plate; 14 - lapping block; 15 - tightening bolt. Specific embodiments

[0017] The technical solution of the present utility model will be further described below, but the scope of protection is not limited thereto.

[0018] As Figure 1 shown.

[0019] A stair formwork joint structure of the present application includes:

[0020] A solidified and formed lower staircase 1, a ground anchor 2 is installed on the lower staircase 1, a tie rod 3 is installed against the ground anchor 2, horizontal rods 4 are fixedly spaced on the tie rod 3, a back plate 5 is fixed to the horizontal rods 4, and a step formwork 6 is fixed to the back plate 5.

[0021] The step formwork 6 is spaced and installed with a bottom formwork 7 of the staircase below, and the space between the bottom formwork 7 of the staircase and the step formwork 6 is used to accommodate the fixed and formed cast-in-place concrete staircase 12. The bottom formwork 7 of the staircase is connected and abutted against the lower staircase 1, a backing wooden square 8 is installed on the back of the bottom formwork 7 of the staircase, a jack 9 is installed on the backing wooden square 8, and the jack 9 is supported on the ground 11 through a support rod 10.

[0022] The lower staircase 1 is sleeved with a towing plate 13, and the towing plate 13 is tightly installed on the lower staircase 1 through a tightening bolt 15. A lapping block 14 is installed between the bottom of the backing wooden square 8 and the lower staircase 1, and the lapping block 14 is lifted by the towing plate 13.

[0023] The lapping block 14 is located between the bottom of the backing wooden square 8 and the lower staircase 1, enabling stable force transmission between the bottom of the backing wooden square 8 and the lower staircase through the lapping block 14. The lapping block 14 is lifted and limited by the towing plate 13 to maintain stability, solving the problem that there is a gap between the bottom of the backing wooden square and the lower staircase and stable force transmission cannot be achieved.

Claims

1. A stair formwork node structure, characterized in that: include: Downstairs (1); The bottom is connected to the staircase bottom mold (7) which is closely attached to the lower staircase (1); A back wood block (8) is installed on the back of the staircase bottom mold (7); The lower staircase (1) is sleeved with a carriage plate (13), which is mounted on the lower staircase (1) by means of a tightening bolt (15); a lap block (14) is mounted between the bottom of the back wood (8) and the lower staircase (1), and the lap block (14) is lifted by the carriage plate (13).

2. The stair formwork node structure according to claim 1, characterized in that: A ground anchor (2) is installed on the lower staircase (1), and a pull rod (3) is installed against the ground anchor (2).

3. The stair formwork node structure according to claim 2, characterized in that: The pull rods (3) are fixed with horizontal rods (4) at intervals, the horizontal rods (4) are fixed with back plates (5), and the back plates (5) are fixed with step templates (6).

4. The stair formwork node structure according to claim 1, characterized in that: A back wood beam (8) is installed on the back of the stair bottom mold (7), and a top support (9) is installed on the back wood beam (8), and the top support (9) is supported on the ground (11) through a support rod (10).

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