Upper hanging type stair corner protector fixing device

Abstract

The utility model discloses a top-hanging type stair corner protector fixing device which comprises square steel keels, two square steel keels are symmetrically arranged in a spaced mode, and the inner sides of the two square steel keels are fixedly connected through a plurality of pieces of connecting square steel to form a keel frame. The multiple sets of connecting plates are evenly fixed to the bottoms of the two square steel keels at intervals in the vertical direction, the number of each set of connecting plates is two, and the two connecting plates of each set are symmetrically arranged at the bottoms of the two square steel keels; the kicking panels are arranged on one sides of the multiple sets of connecting plates in the vertical direction; the corner protection embedded plate comprises a corner protection part and a Y-shaped anchoring supporting leg, the kicking panel, the connecting plate and the corner protection part are fixedly connected through bolts, and the Y-shaped anchoring supporting leg is embedded into the pouring concrete. The corner protection embedded plate, the kicking panel and the connecting plate at the bottom of the keel frame are fixedly connected into an integrated structure through the bolts, so that the overall anti-disturbance performance is improved, and the construction positioning of the corner protection embedded plate is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a top-hanging stair corner guard fixing device. Background Art

[0002] In current construction projects, stair corner guards are connected to the staircase reinforcement by tying or welding. Stairs are important pedestrian pathways and also serve as material transport channels during construction. The installation of corner guards prevents damage to the finished product due to subsequent bumps and collisions. However, existing corner guard installations suffer from inaccurate positioning and are prone to disturbance after positioning. This can lead to uneven corner guards and concrete rising above the corner guard, necessitating secondary removal, impacting construction quality and surface appearance. Utility Model Content

[0003] The purpose of the present invention is to provide a top-hanging stair corner guard fixing device to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides a top-hanging stair corner guard fixing device, comprising: square steel keels, two square steel keels are spaced and symmetrically arranged, and the inner sides of the two square steel keels are fixedly connected by multiple connecting square steels to form a keel frame; connecting plates, multiple groups of connecting plates are evenly spaced and fixed at the bottom of the two square steel keels in the vertical direction, the number of each group of connecting plates is two, and the two connecting plates in each group are symmetrically arranged at the bottom of the two square steel keels; kick panels, multiple kick panels are respectively arranged on one side of the multiple groups of connecting plates in the vertical direction; embedded corner guard plates, the embedded corner guard plates include corner guard parts and Y-shaped anchor legs, the kick panels, connecting plates and corner guard parts are fixedly connected by bolts, and the Y-shaped anchor legs are embedded in the cast concrete.

[0005] In a preferred embodiment, the square steel keel includes an upper horizontal portion, a lower horizontal portion and a middle inclined portion, the middle inclined portion is located between the upper horizontal portion and the lower horizontal portion, and the upper horizontal portion, the lower horizontal portion and the middle inclined portion of the two square steel keels are respectively connected by horizontally arranged connecting square steels, and the upper horizontal portion and the lower horizontal portion of the square steel keel are respectively arranged on the rest platform.

[0006] In a preferred embodiment, the connecting plate is a rectangular plate structure, the spacing between adjacent connecting plates is the same as the width of the stair treads, and the connecting plate is provided with a first connecting hole.

[0007] In a preferred embodiment, the size of the kick panel is the same as the design size of the staircase, and two second connection holes are symmetrically provided on the upper portion of the kick panel.

[0008] In a preferred embodiment, the corner guard portion of the corner guard embedded plate is an arc-shaped angle steel, and a third connecting hole is provided on the side of the corner guard portion close to the kick panel. The positions of the first connecting hole, the second connecting hole, and the third connecting hole correspond to each other and are fixed by bolts.

[0009] In a preferred embodiment, the total thickness of the connecting plate, kick plate, and corner protector is equal to the net length of the screw end of the bolt, and after the connection is completed, the screw end face of the bolt is flush with the inner side face of the corner protector.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention forms a keel frame by setting two square steel keels and connecting square steels, and setting a connecting plate at the bottom of the two square steel keels. The corner guard embedded plate, kick plate and connecting plate are fixedly connected by bolts to form an integrated structure, which increases the overall anti-disturbance performance and makes the construction positioning of the corner guard embedded plate accurate. After the corner guard embedded plate is connected and fixed to the connecting plate at the bottom of the keel frame by bolts, the horizontal and positioning confirmation is completed, and no secondary adjustment is required. The corner guard fixing device of the staircase of the present invention can complete the assembly of the entire staircase through the reserved connection holes without the need for on-site drilling and bolting. After the pouring is completed, the Y-shaped anchor legs are suspended in the concrete, and the disassembly of the entire stair formwork system can be completed by removing the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Fig. 1 This is a side view of the upper hanging stair corner guard fixing device of the present invention;

[0012] Fig. 2 This is an exploded view of the top-hung stair corner guard fixing device of the present invention;

[0013] Fig. 3 This is a schematic cross-sectional view of the structure of the corner guard embedded plate of the present invention.

[0014] Description of reference numerals:

[0015] 1. Square steel keel; 11. Upper horizontal part; 12. Lower horizontal part; 13. Middle inclined part; 2. Connecting square steel; 3. Connecting plate; 4. Kick plate; 5. Corner guard embedded plate; 51. Corner guard; 52. Y-shaped anchor leg; 6. Bolt; 71. First connecting hole; 72. Second connecting hole; 73. Third connecting hole; 8. Concrete. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0017] Example 1:

[0018] like Figs. 1 to 3 As shown, the top-mounted stair corner guard fixing device of the present invention includes a square steel keel 1, connecting square steel 2, a connecting plate 3, a kick plate 4, and an embedded corner guard plate 5. The two square steel keels 1 are spaced and symmetrically arranged. The inner sides of the two square steel keels 1 are fixedly connected by multiple connecting square steels 2 to form a keel frame. Multiple groups of connecting plates 3 are evenly spaced and fixed to the bottom of the two square steel keels 1 in the vertical direction. There are two connecting plates 3 in each group, and the two connecting plates 3 in each group are symmetrically arranged at the bottom of the two square steel keels 1. Multiple kick plates 4 are respectively arranged on one side of the multiple groups of connecting plates 3 in the vertical direction. The embedded corner guard plate 5 includes a corner guard portion 51 and a Y-shaped anchor leg 52. The kick plate 4, connecting plate 3, and corner guard portion 51 are fixedly connected by bolts 6. The Y-shaped anchor leg 52 is set at an angle of 45° to the horizontal direction.

[0019] Furthermore, the square steel keel 1 includes an upper horizontal portion 11, a lower horizontal portion 12 and a middle inclined portion 13, the middle inclined portion 13 is located between the upper horizontal portion 11 and the lower horizontal portion 12, and the upper horizontal portion 11, the lower horizontal portion 12 and the middle inclined portion 13 of the two square steel keels 1 are respectively connected by a horizontally arranged connecting square steel 2, and the upper horizontal portion 11 and the lower horizontal portion 12 of the square steel keel 1 are respectively arranged on the rest platform.

[0020] Furthermore, the connecting plate 3 is a rectangular plate structure, with the spacing between adjacent connecting plates 3 equal to the stair tread width. A first connecting hole 71 is defined in each connecting plate 3. The kick panel 4 is sized to the stair design, with two second connecting holes 72 symmetrically positioned on its upper portion. The corner guard 51 of the corner guard 5 is an arc-shaped steel angle. A third connecting hole 73 is defined on the side of the corner guard 51 closest to the kick panel. The first, second, and third connecting holes 71, 72, and 73 are positioned in corresponding positions and secured by bolts 6.

[0021] Furthermore, the total thickness of the connecting plate 3, the kick panel 4, and the corner guard embedded plate 5 is equal to the net length of the screw end of the bolt 6, and after the connection is completed, the screw end face of the bolt 6 is flush with the inner side face of the corner guard embedded plate 5.

[0022] Example 2:

[0023] The following describes the construction process of this utility model:

[0024] Step S1, stair bottom formwork construction;

[0025] Step S2, tying the stair reinforcement;

[0026] Step S3, assembling the stair corner guard fixing device: the inner sides of the two square steel keels 1 are fixedly connected by multiple connecting square steels 2 to form a keel frame, a connecting plate 3 is set at the bottom of the two square steel keels 1, and after the corner guard embedded plate 5 and the kick panel 4 are adjusted to be level, bolts 6 are sequentially passed through the kick panel 4, the connecting plate 3, and the corner guard portion 51 of the corner guard embedded plate 5 to fix them;

[0027] Step S4: Install the stair corner guard fixing device into the stair steel frame;

[0028] Step S5: Adjust the positioning height of the square steel keel at the rest platform (i.e., the top elevation of the rest platform);

[0029] Step S6: After the concrete 8 is poured and initially set, it is scraped and leveled according to the height of the kick panel 4. After the concrete is poured and finally set, the bolts 6 are removed to bury the Y-shaped anchor legs 52 of the corner guard embedded plate in the concrete 8 to complete the construction.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A top-mounted stair corner guard fixing device, characterized by: The upper hanging type stair corner guard fixing device comprises: Square steel keels (1), two of the square steel keels (1) are spaced apart and symmetrically arranged, and the inner sides of the two square steel keels (1) are fixedly connected by a plurality of connecting square steels (2) to form a keel frame; Connecting plates (3), wherein a plurality of groups of the connecting plates (3) are fixed at even intervals along the vertical direction at the bottom of the two square steel keels (1), the number of the connecting plates (3) in each group is two, and the two connecting plates (3) in each group are symmetrically arranged at the bottom of the two square steel keels (1); Kick panels (4), wherein a plurality of kick panels (4) are respectively arranged on one side of a plurality of groups of connecting plates (3) in a vertical direction; The corner protection embedded plate (5) comprises a corner protection portion (51) and a Y-shaped anchoring leg (52); the kick plate (4), the connecting plate (3) and the corner protection portion (51) are fixedly connected by bolts (6); and the Y-shaped anchoring leg (52) is embedded in the poured concrete.

2. The top-mounted stair corner guard fixing device according to claim 1 is characterized in that: The square steel keel (1) comprises an upper horizontal portion (11), a lower horizontal portion (12) and a middle inclined portion (13), wherein the middle inclined portion (13) is located between the upper horizontal portion (11) and the lower horizontal portion (12), and the upper horizontal portion (11), the lower horizontal portion (12) and the middle inclined portion (13) of the two square steel keels (1) are respectively connected by horizontally arranged connecting square steels (2), and the upper horizontal portion (11) and the lower horizontal portion (12) of the square steel keel (1) are respectively arranged on the rest platform.

3. The top-mounted stair corner guard fixing device according to claim 1 is characterized in that: The connecting plate (3) is a rectangular plate structure, the spacing between adjacent connecting plates (3) is the same as the width of the stair treads, and a first connecting hole (71) is provided on the connecting plate (3).

4. The top-mounted stair corner guard fixing device according to claim 3 is characterized in that: The size of the kick panel (4) is the same as the design size of the staircase, and two second connection holes (72) are symmetrically provided on the upper part of the kick panel (4).

5. The top-mounted stair corner guard fixing device according to claim 4 is characterized in that: The corner guard portion (51) of the corner guard embedded plate (5) is an arc-shaped angle steel. A third connecting hole (73) is provided on a side of the corner guard portion (51) close to the kick plate. The first connecting hole (71), the second connecting hole (72), and the third connecting hole (73) are positioned correspondingly and are fixed by bolts (6).

6. The top-mounted stair corner guard fixing device according to claim 5, characterized in that: The total thickness of the connecting plate (3), the kick plate (4), and the corner protection embedded plate (5) is equal to the net length of the screw end of the bolt (6), and after the connection is completed, the screw end face of the bolt (6) is flush with the inner side face of the corner protection embedded plate (5).

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