Stair construction protective guardrail

Abstract

The utility model discloses a protective guardrail for stair construction, which is applied to the outer end of a step (1) of a stair and is characterized in that the protective guardrail comprises a plurality of fixed discs (2) arranged on the step (1), upright rods (3) are arranged on the fixed discs (2), and three-dimensional supports (8) are arranged on rod bodies of the upright rods (3); a plurality of hinged inner side protection rods (9) are arranged between the inner side walls of the adjacent three-dimensional supports (8), and a plurality of hinged outer side protection rods (10) are arranged between the outer side walls of the adjacent three-dimensional supports (8). Reinforcing rods are arranged between the inner side protection rods (9) and the outer side protection rods (10). According to the protective fence, the structural strength of the protective fence is improved and the protective safety is improved by arranging the protective structures on the two sides. In addition, the protective guard can be integrally installed and can be flexibly arranged on a stair flight and a platform, and the installation efficiency of the protective guard is improved.

Description

Technical Field

[0001] The utility model relates to the field of building structures, in particular to a stair construction protective guardrail. Background Art

[0002] In order to strengthen the safety requirements of construction, it is often necessary to install guardrail structures on both sides of the building stairs to ensure the safety of construction workers. Existing guardrails, such as the Chinese utility model patent with announcement number CN212406199U, disclose a concrete ladder and a rest platform, wherein the front and rear ends of the concrete ladder are both provided with stair fixing clamps, the upper end outer surfaces of the two stair fixing clamps are fixedly connected with stair telescopic rods, and the upper end outer surfaces of the stair fixing clamps are plugged with stair guardrails, and the front and rear ends of the rest platform are both provided with platform fixing clamps, the upper end outer surfaces of the two platform fixing clamps are fixedly connected with platform telescopic rods, and the upper end outer surfaces of the platform fixing clamps are plugged with platform board guardrails. This type of guardrail structure has the following main problems: 1. This type of guardrail is connected by vertical poles, but the guardrail is a single-sided structure, its structural strength is not ideal, and the safety of protection is low; 2. The stairs include flights and platforms, and there is an angle difference between the two. Secondly, due to the construction period, there are different height differences between adjacent steps of the flight. Therefore, when installing the guardrail, it is necessary to install the vertical poles first, and then install the guardrail between adjacent vertical poles. This makes the installation process more cumbersome and cannot be installed as a whole and flexibly. Utility Model Content

[0003] The purpose of the utility model is to provide a stair construction protection guardrail. The utility model improves the structural strength of the guardrail and enhances the protection safety by setting a double-sided protection structure. In addition, the utility model can also realize the overall installation of the guardrail, flexibly set it on the stair section and the platform, and improve the efficiency of the guardrail installation.

[0004] The technical solution of the utility model is as follows: a stair construction protection guardrail is applied to the outer end of the stair steps, including a plurality of fixed plates arranged on the steps, upright rods are provided on the fixed plates, and three-dimensional brackets are provided on the rod bodies of the upright rods; a plurality of hinged inner protection rods are provided between the inner walls of adjacent three-dimensional brackets, and a plurality of hinged outer protection rods are provided between the outer walls of adjacent three-dimensional brackets; a reinforcement rod is provided between the inner protection rod and the outer protection rod.

[0005] In the above-mentioned stair construction protection guardrail, the three-dimensional bracket includes a first cross bar arranged on the rod body of the upright rod, a second cross bar is provided at the top of the upright rod, a first longitudinal bar is provided between one end of the first cross bar and the second cross bar, a second longitudinal bar is provided between the other ends of the first cross bar and the second cross bar, an inner protection bar is provided on the inner side of the first longitudinal bar, and an outer protection bar is provided on the inner side of the second longitudinal bar.

[0006] The inner protection rod is connected to the first longitudinal rod through screws, and the outer protection rod is connected to the second longitudinal rod through screws.

[0007] In the aforementioned stair construction protection guardrail, multiple positioning holes are provided on the inner protection rod and the outer protection rod, a reinforcement rod is provided between the inner protection rod and the outer protection rod, the mounting hole at the end of the reinforcement rod is aligned with the positioning hole, and a screw is provided in the positioning hole.

[0008] In the aforementioned stair construction protection guardrail, a clamp is sleeved on the upright rod, one end of the clamp is connected to a bracket, and the panel part of the bracket is connected to the vertical surface of the step via screws.

[0009] In the aforementioned stair construction protection guardrail, the clamp includes a sub-component and a mother component hinged to each other, a rotatable shaft rod is provided at one end of the mother component, a fixing button is provided at the end of the shaft rod, a fixing bayonet is provided at one end of the sub-component, the shaft rod and the fixing button are matched with the fixing bayonet; the bracket is fixed to one side of the mother component.

[0010] In the aforementioned stair construction protection guardrail, rubber anti-skid rings are provided inside the sub-components and the main component, and the inner side surface of the rubber anti-skid ring is in close contact with the arc surface of the upright rod.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. In the utility model, a three-dimensional bracket is arranged on the vertical pole, and inner and outer protective rods are installed on the inner sides of the two longitudinal rods between the vertical poles to realize a bilateral guardrail structure, thereby improving the structural strength of the guardrail and enhancing the safety of protection; in addition, adjacent three-dimensional brackets are hinged to install the inner and outer protective rods, and the entire guardrail is installed to adapt to the different height differences between the stair sections and the platform, which is flexible and convenient to install and improves the installation efficiency.

[0013] 2. Add reinforcement rods between the inner and outer guardrails to increase the strength of the connection between the guardrails on both sides.

[0014] 3. Connect the upright rod to the vertical surface of the step through a clamp to improve the stability of the upright rod, thereby improving the strength of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 is a schematic diagram of a three-dimensional bracket;

[0017] Figure 3 is a schematic diagram of a clamp;

[0018] Figure 4 Schematic diagram of the rubber anti-slip ring.

[0019] Explanation of the marks in the accompanying drawings: 1-step, 2-fixing plate, 3-upright rod, 4-first cross rod, 5-second cross rod, 6-first longitudinal rod, 7-second longitudinal rod, 8-three-dimensional bracket, 9-inner protective rod, 10-outer protective rod, 11-positioning hole, 12-reinforcement rod, 13-screw, 14-clamp, 15-bracket, 16-sub-component, 17-mother component, 18-axis rod, 19-fixing button, 20-fixing bayonet, 21-rubber anti-slip ring. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0021] Embodiment: A stair construction protection guardrail is applied to the outer end of a step 1 of a staircase, and a fixing plate 2 is installed on the step 1, as shown in the attached Figure 1 As shown, the fixed plate has a plurality of mounting holes on its surface, and fixing screws are installed in the mounting holes, and the fixing screws are connected to the plane of the step. The fixed plate 2 has an upright rod 3, and a first cross bar 4 is fixed to the rod body of the upright rod 3. A second cross bar 5 is provided at the top of the upright rod 3, and a first longitudinal rod 6 is provided between one end of the first cross bar 4 and the second cross bar 5, and a second longitudinal rod 7 is provided between the other ends of the first cross bar 4 and the second cross bar 5. The first cross bar 4, the second cross bar 5, the first longitudinal rod 6 and the second longitudinal rod 7 are enclosed to form a three-dimensional bracket 8, as shown in the attached Figure 2 As shown; an inner protective rod 9 is provided inside the first longitudinal rod 6 of the adjacent three-dimensional bracket 8, and an outer protective rod 10 is provided inside the second longitudinal rod 7 of the adjacent three-dimensional bracket 8. The inner protective rod 9 is connected to the first longitudinal rod 6 by screws, and the outer protective rod 10 is connected to the second longitudinal rod 7 by screws, which is convenient for disassembly and reuse. The ends of the adjacent connected outer protective rods will overlap each other and then be fixed to the inner side of the second longitudinal rod by bolts. The existing guardrails need to be assembled by combining multiple parts during installation, and the installation efficiency is slow. In the utility model, the inner and outer protective rods are hinged on the three-dimensional bracket, and the entire guardrail can be assembled and transported to the construction site during production and manufacturing, and directly installed, which greatly improves the installation efficiency. Secondly, since the protective rod is connected in a hinged form, the height difference between the ladder section and the platform and the steps of the ladder section is not consistent due to the construction stage. The utility model can also be flexibly installed on the ladder section and the platform.

[0022] The inner protection rod 9 and the outer protection rod 10 are both provided with a plurality of positioning holes 11, and a reinforcement rod 12 is installed between the inner protection rod 9 and the outer protection rod 10. The mounting hole at the end of the reinforcement rod 12 is aligned with the positioning hole 11, and a screw 13 is inserted into the positioning hole 11. A reinforcement rod is added between the inner and outer guardrails to enhance the connection strength of the protection rods on both sides.

[0023] The upright rod 3 is provided with a clamp 14. Figure 3 As shown, one end of the clamp 14 is connected to a bracket 15, and the panel part of the bracket 15 is connected to the vertical surface of the step 1 by screws; the clamp 14 includes a sub-component 16 and a mother component 17 which are hinged to each other, and a rotatable shaft rod 18 is provided at one end of the mother component 17, and a fixing button 19 is provided at the end of the shaft rod 18, and a fixing bayonet 20 is provided at one end of the sub-component 16, and the shaft rod 18 and the fixing button 19 are matched with the fixing bayonet 20; the sub-component and the mother component can be opened for easy removal, and the shaft rod is rotated, and the shaft rod is inserted into the fixing bayonet, and the fixing button is rotated, and the end face of the fixing button contacts the port of the fixing bayonet, so that the sub-component and the mother component can be quickly disassembled, and the bracket 15 is fixed to one side of the mother component 17, and the bracket mainly consists of a rod body and a straight plate, and the straight plate is connected to the vertical surface of the step by screws.

[0024] The sub-component 16 and the main component 17 are provided with a rubber anti-slip ring 21. Figure 4 As shown, the inner side surface of the rubber anti-skid ring 21 is in close contact with the arc surface of the upright rod 3, which mainly plays an anti-skid role so that the clamp can be firmly sleeved on the upright rod.

[0025] The working principle of the utility model is as follows: a three-dimensional bracket is arranged on the vertical pole, and inner and outer protective rods are installed on the inner sides of the two longitudinal rods between the vertical poles to realize a bilateral guardrail structure, improve the structural strength of the guardrail, and enhance the protection safety; the arranged reinforcement rods can enhance the strength of the protective rods on both sides and enhance the structural strength; a clamp is arranged to connect the vertical pole with the vertical surface of the step to enhance the stability of the vertical pole, thereby enhancing the strength of the entire device; in addition, adjacent three-dimensional brackets are hinged to install the inner and outer protective rods, and the entire guardrail is installed to adapt to the different height differences between the stair sections and the platforms. The installation is flexible and convenient, and the installation efficiency is improved.

Claims

1. A stair construction protection guardrail, applied to the outer end of a step (1) of a staircase, characterized in that: The invention comprises a plurality of fixing plates (2) arranged on a step (1), wherein an upright rod (3) is arranged on the fixing plate (2), and a three-dimensional bracket (8) is arranged on the rod body of the upright rod (3); a plurality of hinged inner protective rods (9) are arranged between the inner side walls of adjacent three-dimensional brackets (8), and a plurality of hinged outer protective rods (10) are arranged between the outer side walls of adjacent three-dimensional brackets (8); and a reinforcing rod is arranged between the inner protective rod (9) and the outer protective rod (10).

2. The stair construction protection guardrail according to claim 1 is characterized by: The three-dimensional support comprises a first cross bar (4) arranged on the rod body of the upright rod, a second cross bar (5) is arranged at the top end of the upright rod (3), a first longitudinal bar (6) is arranged between one end of the first cross bar (4) and the second cross bar (5), a second longitudinal bar (7) is arranged between the other end of the first cross bar (4) and the second cross bar (5), an inner protective bar is arranged on the inner side of the first longitudinal bar, and an outer protective bar is arranged on the inner side of the second longitudinal bar.

3. The stair construction protection guardrail according to claim 1 is characterized by: The inner protection rod (9) and the outer protection rod (10) are both provided with a plurality of positioning holes (11), the mounting holes at the ends of the reinforcement rods (12) are aligned with the positioning holes (11), and screws (13) are provided in the positioning holes (11).

4. The stair construction protection guardrail according to claim 1 is characterized in that: A clamp (14) is sleeved on the upright rod (3), one end of the clamp (14) is connected to a bracket (15), and a panel portion of the bracket (15) is connected to the vertical surface of the step (1) via screws.

5. The stair construction protection guardrail according to claim 4 is characterized in that: The clamp (14) comprises a sub-component (16) and a main component (17) which are hinged to each other. A rotatable shaft (18) is provided at one end of the main component (17). A fixing button (19) is provided at the end of the shaft (18). A fixing bayonet (20) is provided at one end of the sub-component (16). The shaft (18) and the fixing button (19) are matched with the fixing bayonet (20). The bracket (15) is fixed to one side of the main component (17).

6. The stair construction protection guardrail according to claim 5 is characterized by: The sub-component (16) and the main component (17) are provided with a rubber anti-skid ring (21), and the inner side surface of the rubber anti-skid ring (21) is in close contact with the arc surface of the upright rod (3).

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