Tool type safety guardrail for stair construction

Abstract

The utility model provides a tool type safety guardrail for stair construction, which comprises a stand column system and a clamp system, and the stand column system is hinged with the clamp system; the clamp system comprises an upper clamp, a lower clamp and a lower clamp, and the upper clamp is hinged to the stand column system; the upper clamp and the lower clamp are both L-shaped plates, a plurality of combination sites for adjusting the clamping width are arranged on the vertical sections of the upper clamp and the lower clamp, and fixing pieces are arranged at the combination sites to fixedly connect the upper clamp and the lower clamp. The horizontal sections of the upper clamp and the lower clamp are provided with through holes, and fastening bolts for adjusting the clamping force are arranged to penetrate through the through holes in sequence; and the lower clamp is hinged with the lower clamp, and the lower clamp is connected with the bottom surface of the stair plate. The tool type stair guardrail has the advantages that the tool type stair guardrail is installed on the side of a stair through the clamp, installation and dismantling are convenient, the tool type stair guardrail can be dismantled in a segmented mode during stair decoration construction, installation and recovery can be conducted immediately after stair decoration construction is completed, a large safety gap period is avoided, and safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction safety guardrails, in particular to a tool-type safety guardrail for staircase construction. Background Art

[0002] With the development of social economy, the requirements for safe construction in construction are getting higher and higher. The safety requirements in construction are to ensure the life safety of construction site personnel, prevent accidents and ensure the quality of the project, especially the safety of the construction site. It is necessary to set up obvious safety warning signs at the construction site, isolate dangerous areas, and ensure that temporary electricity, mechanical equipment, scaffolding, etc. at the construction site meet safety standards. In particular, the protection of edges, openings, and stairs is an indispensable part of the entire protection system.

[0003] Traditional stair protection uses steel pipes fixed to the stair treads with expansion bolts. This has certain problems. First, the main team is responsible for stair protection during the main construction, and the main decoration team is responsible for stair protection during the decoration stage. There is a phenomenon of mutual shirking of guardrail construction; second, during the stair decoration construction, the temporary guardrail is removed. There is a large gap between the removal of the temporary guardrail and the installation of the formal guardrail, which poses a great safety hazard; third, the amount of steel pipe material used in the temporary stair guardrail is small, and it is often rejected when it is returned to the rental station after removal, resulting in rental fee losses. Therefore, a safety guardrail is needed to solve the above-mentioned thorny problems that arise during the construction process. Utility Model Content

[0004] The utility model aims to provide a tool-type safety guardrail for stair construction, so as to solve the inconvenience of stair protection installation in the prior art and the corresponding safety problems caused.

[0005] The utility model provides a tool-type safety guardrail for stair construction, comprising a column system and a clamp system, wherein the column system is hinged to the clamp system;

[0006] The clamp system comprises an upper clamp, a lower clamp and a lower fixture, and the upper clamp is hinged to the column system;

[0007] The upper clamp and the lower clamp are both L-shaped plates, and are both provided with a plurality of combining points for adjusting the clamping width in the vertical section, and fixing parts are provided at the combining points to fix the upper clamp and the lower clamp;

[0008] Through holes are formed in the horizontal sections of the upper clamp and the lower clamp, and fastening bolts for adjusting the clamping force are arranged to pass through the through holes in sequence;

[0009] The lower clamp is hinged to the lower fixture, and the lower fixture is connected to the bottom surface of the stair slab.

[0010] Furthermore, the column system includes columns and cross bars, and one or more cross bars are hingedly connected between adjacent columns for reinforcement.

[0011] As a preferred solution, a crossbar connector is provided at the connection between the upright column and the crossbar, and the crossbar connector includes bolts for hingedly connecting the upright column and a crossbar for hingedly connecting the crossbar, and a long hole is provided at the end of the crossbar for hingedly connecting the crossbar.

[0012] As a preferred solution, a first wooden square is arranged at the bottom end of the column system, and a connecting plate with a groove is fixedly arranged at the bottom end of the column system to clamp the first wooden square.

[0013] As a preferred solution, a second wooden block is arranged at the top end of the lower fixture, and a groove is arranged at the top end of the lower fixture to clamp the second wooden block.

[0014] As a preferred solution, the lower clamp is composed of two L-shaped plates fixedly connected by a first connecting plate, a first bolt is fixedly arranged between the two plates of the horizontal section of the lower clamp, a bolt hole is arranged in the lower clamp, the first bolt is rotatably arranged in the bolt hole, the bolt head at the outer end of the first bolt is clamped on the outside of the bolt hole, and a plurality of first screw holes are provided in the vertical direction of the vertical section of the lower clamp.

[0015] Furthermore, the horizontal section of the upper clamp is composed of two long strips fixedly connected by the second connecting plate, a second plug is fixedly arranged between the two plates of the horizontal section of the upper clamp, a plug hole is arranged on the column system, the second plug is rotatably arranged in the plug hole, and a bolt head at the outer end of the second plug is clamped on the outer side of the plug hole;

[0016] The vertical section of the upper clamp is a long strip hinged between two long strips of the horizontal section. The vertical section of the upper clamp has multiple second screw holes along the vertical direction. The positions of the second screw holes correspond to the positions of the first screw holes. One or more fixing parts are arranged in the first screw holes and the second screw holes to fix the vertical section of the upper clamp and the vertical section of the lower clamp.

[0017] As a preferred solution, the fastening bolt includes a screw rod and a nut, and the screw rod head of the screw rod is configured to be C-shaped to clamp the lower clamp.

[0018] The beneficial effects of the utility model are:

[0019] This tool-type stair guardrail is manufactured in a standardized manner and is installed on the side of the stairs using a clamp. It is very convenient to install or remove. It can be removed in sections during stair decoration construction and can be installed and restored immediately after the stair decoration construction is completed, avoiding a large safety gap and greatly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 for Figure 1 A partial enlarged view of point A.

[0023] Figure 3 It is a structural schematic diagram of the upper clamp of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the lower clamp of the utility model.

[0025] Figure 5 It is a structural schematic diagram of the crossbar connecting piece of the utility model.

[0026] Figure 6 It is a structural schematic diagram of the fastening bolt of the utility model.

[0027] The reference numerals in the accompanying drawings are:

[0028] 1. Floor mounting surface, 11. Upright column, 12. Cross bar, 13. Cross bar connector, 131. Bolt, 132. Cross plate, 133. Long hole, 14. Connecting plate, 2. Connecting cavity, 21. Upper clamp, 211. Second connecting plate, 212. Second plug, 213. Second screw hole, 22. Lower clamp, 221. First connecting plate, 222. First plug, 223. First screw hole, 23. Lower fixture, 25. Fixing part, 26. Fastening bolt, 261. Screw, 262. Nut, 263. Screw head, 3. First wooden square, 4. Second wooden square. DETAILED DESCRIPTION

[0029] To illustrate the features of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0030] Example:

[0031] See also Figures 1 to 6 An embodiment of the utility model provides a tool-type safety guardrail for stair construction, including a column system 1 and a clamp system 2, wherein the column system 1 is hinged to the clamp system 2; in this embodiment, the clamp system 2 is hinged to the lower end of the column system 1 to achieve detachable fixation of the guardrail to the stair board.

[0032] Specifically, the clamp system 2 in this embodiment includes an upper clamp 21, a lower clamp 22 and a lower fixture 23, and the upper clamp 21 is hinged to the column system 1; the upper clamp 21 and the lower clamp 22 are both L-shaped plates, and both are provided with multiple combining points for adjusting the clamping width in the vertical section, and fixing parts 25 are provided at the combining points to fix the upper clamp 21 and the lower clamp 22; through holes are provided in the horizontal sections of the upper clamp 21 and the lower clamp 22, and fastening bolts 26 for adjusting the clamping force are provided to pass through the through holes in sequence; the lower clamp 22 is hinged to the lower fixture 23, and the lower fixture 23 is connected to the bottom surface of the stair slab.

[0033] Specifically in this embodiment, the lower clamp 22 is composed of two L-shaped plates fixedly connected by a first connecting plate 221. The first bolt 222 is welded between the two plates of the horizontal section of the lower clamp 22. The lower clamp 23 is provided with a bolt hole. The first bolt 222 is rotatably set in the bolt hole. The bolt head at the outer end of the first bolt 222 is clamped on the outside of the bolt hole. The vertical section of the lower clamp 22 is provided with multiple first screw holes 223 along the vertical direction.

[0034] The L-shape of the upper clamp 21 is composed of two horizontal sections clamping one vertical section, specifically, the horizontal section is composed of two long strips fixedly connected by the second connecting plate 211, and the second bolt 212 is welded between the two plates of the horizontal section of the upper clamp 21, and the column system 1 is provided with a bolt hole, and the second bolt 212 is rotatably set in the bolt hole, and the bolt head at the outer end of the second bolt 212 is stuck on the outside of the bolt hole; the vertical section of the upper clamp 21 is a long strip hinged between the two long strips of the horizontal section, and the vertical section of the upper clamp 21 is provided with a plurality of second screw holes 213 along the vertical direction, and the position of the second screw hole 213 corresponds to the position of the first screw hole 223, and one or more fixing members 25 (bolts are used in this embodiment) are arranged in the first screw hole 223 and the second screw hole 213 to fix the vertical section of the upper clamp 21 and the vertical section of the lower clamp 22.

[0035] When in use, first adjust the relative positions of the upper clamp 21 and the lower clamp 22 according to the thickness of the stair slab, and fix them with the fixing member 25, insert the first plug 222 and the second plug 212 into the bolt holes of the column system 1 and the lower clamp 23 respectively, insert the fastening bolt 26 and clamp the lower clamp 23, and tighten the fastening bolt 26 with a wrench, and pay attention to the tightening force so that the column system 1 does not shake. The device realizes the detachable installation of the fence and the stair slab, which is convenient and flexible to use.

[0036] In this embodiment, the column system 1 includes columns 11 and cross bars 12, and three cross bars 12 are hingedly connected between adjacent columns 11 for reinforcement. In order to increase the connection adaptability of the columns 11 and the cross bars 12 and give them a certain buffering capacity, a cross bar connector 13 is provided at the connection between the columns 11 and the cross bars 12, and the cross bar connector 13 includes a bolt 131 for hingedly connecting the columns 11 and a cross plate 132 for hingedly connecting the cross bars 12. The ends of the cross plates 132 are provided with long holes 133 for hingedly connecting the cross bars 12, so that the cross bars 12 have a certain telescopic activity space.

[0037] In addition, in order to increase the friction coefficient between the column system 1 and the clamp system 2 and provide a certain buffering capacity for the column system 1, a first wooden square 3 is arranged at the bottom of the column system 1, and a connecting plate 14 with a groove is fixedly arranged at the bottom of the column system 1 to clamp the first wooden square 3. In this embodiment, the first wooden square 3 is arranged below and on the side of the bottom of the column system 1, and the connecting plate 14 is arranged in an L shape, so that the column system 1 has buffering in both horizontal and vertical directions. A second wooden square 4 is also arranged at the top of the lower clamp 23, and a groove is arranged at the top of the lower clamp 23 to clamp the second wooden square 4. By arranging wooden squares at the clamping points of the upper clamp 21 and the lower clamp 22, the buffering capacity and friction coefficient of the clamp are greatly enhanced.

[0038] The clamping force of the fastening bolt 26 in this embodiment is the key to maintaining the overall stability. Specifically, it includes a screw rod 261 and a nut 262. The screw head 263 of the screw rod 261 is configured to be C-shaped to clamp the lower clamp 22, and the nut 262 clamps the upper clamp 21. The overall stability 33 of the structure is significantly increased through this shape of bite fixation.

[0039] The above embodiments and drawings are only used to illustrate the technical solution of the utility model, and are not intended to limit the utility model. The utility model is described in detail with reference to the preferred embodiments. It should be understood by ordinary technicians in this field that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the utility model do not deviate from the purpose of the utility model and should also fall within the scope of protection of the claims of the utility model. Other related technical structures not fully disclosed in the utility model are prior art in the field.

Claims

1. A tool-type safety guardrail for stair construction, comprising a column system (1) and a clamp system (2), characterized in that: The column system (1) is an articulated clamp system (2); The clamp system (2) comprises an upper clamp (21), a lower clamp (22) and a lower fixture (23); the upper clamp (21) is hinged to the column system (1); The upper clamp (21) and the lower clamp (22) are both L-shaped plates, and are both provided with a plurality of coupling points for adjusting the clamping width in the vertical section, and fixing members (25) are provided at the coupling points to fixedly connect the upper clamp (21) and the lower clamp (22); Through holes are formed in the horizontal sections of the upper clamp (21) and the lower clamp (22), and fastening bolts (26) for adjusting the clamping force are arranged to pass through the through holes in sequence; The lower clamp (22) is hinged to the lower fixture (23), and the lower fixture (23) is connected to the bottom surface of the stair slab.

2. The tool-type safety guardrail for stair construction according to claim 1 is characterized in that: The column system (1) comprises columns (11) and cross bars (12), and one or more cross bars (12) are hingedly connected between adjacent columns (11) for reinforcement.

3. The tool-type safety guardrail for stair construction according to claim 2 is characterized in that: A crossbar connector (13) is provided at the connection between the upright column (11) and the crossbar (12); the crossbar connector (13) comprises a bolt (131) for hingedly connecting the upright column (11) and a crossbar (132) for hingedly connecting the crossbar (12); and a long hole (133) is provided at the end of the crossbar (132) for hingedly connecting the crossbar (12).

4. The tool-type safety guardrail for stair construction according to claim 1 is characterized in that: A first wooden square (3) is arranged at the bottom end of the column system (1), and a connecting plate (14) with a groove is fixedly arranged at the bottom end of the column system (1) to clamp the first wooden square (3).

5. The tool-type safety guardrail for stair construction according to claim 1 is characterized in that: A second wooden block (4) is arranged at the top end of the lower clamp (23), and a groove is arranged at the top end of the lower clamp (23) to clamp the second wooden block (4).

6. The tool-type safety guardrail for stair construction according to claim 1 is characterized in that: The lower clamp (22) is composed of two L-shaped plates fixedly connected by a first connecting plate (221), a first bolt (222) is fixedly arranged between the two plates of the horizontal section of the lower clamp (22), a bolt hole is arranged on the lower clamp (23), the first bolt (222) is rotatably arranged in the bolt hole, a bolt head at the outer end of the first bolt (222) is clamped on the outer side of the bolt hole, and a plurality of first screw holes (223) are provided in the vertical direction of the vertical section of the lower clamp (22).

7. The tool-type safety guardrail for stair construction according to claim 6 is characterized in that: The horizontal section of the upper clamp (21) is composed of two long strips fixedly connected by a second connecting plate (211), a second plug (212) is fixedly arranged between the two plates of the horizontal section of the upper clamp (21), the column system (1) is provided with a plug hole, the second plug (212) is rotatably arranged in the plug hole, and the bolt head at the outer end of the second plug (212) is clamped on the outer side of the plug hole; The vertical section of the upper clamp (21) is a long strip hinged between two long strips of the horizontal section. The vertical section of the upper clamp (21) is provided with a plurality of second screw holes (213) along the vertical direction. The positions of the second screw holes (213) correspond to the positions of the first screw holes (223). One or more fixing members (25) are provided in the first screw holes (223) and the second screw holes (213) to fix the vertical section of the upper clamp (21) and the vertical section of the lower clamp (22).

8. The tool-type safety guardrail for stair construction according to claim 1 is characterized in that: The fastening bolt (26) comprises a screw rod (261) and a nut (262); a screw rod head (263) of the screw rod (261) is arranged in a C-shape to clamp the lower clamp (22).

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