Prefabricated stair edge protection fixing device

Abstract

The utility model relates to a prefabricated stair edge protection fixing device. The prefabricated stair edge protection fixing device comprises a handrail assembly and a fixing clamp, the handrail assembly is of a net-shaped structure composed of a plurality of vertical rods and a plurality of inclined transverse rods, and the vertical rods and the inclined transverse rods are hinged and fixed so that the handrail assembly can be contracted or unfolded; the fixing clamp comprises a clamping structure and a connecting structure, the clamping structure is used for being clamped on the prefabricated stair, the connecting structure is used for being connected with the handrail assembly, the connecting structure is a connecting sleeve fixed to the clamping structure, and the handrail assembly is connected with the connecting sleeve in an inserted mode. According to the utility model, the template is fixed on the surface of the step by utilizing the specially-made clamp and the bolt on the step table, so that the fixing effect is good, the edge protection mounting and dismounting speed is high, and the efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of building engineering, and in particular relates to a prefabricated stair edge protection fixing device. Background Art

[0002] After the installation of prefabricated stair components, they serve as an important passage for construction workers to go up and down each floor. However, after the installation of prefabricated stairs, the final finished surface is usually delivered to the owner. During the process, the surface of the stairs is inevitably bumped and damaged. Therefore, it is extremely important to protect the prefabricated stairs. The existing prefabricated stair finished product protection technology usually protects the prefabricated stairs by laying templates on the prefabricated stairs. These protections can protect the prefabricated stairs to a certain extent. Most of the templates used for protection are not effectively fixed and are easy to fall off. Construction workers are prone to stepping on air or slipping when going up and down, which can easily cause injuries.

[0003] The utility model with authorization announcement number CN220036211U discloses a construction site stairway empty edge protection device, comprising at least two support mechanisms clamped at the empty edges of the stairs and a guardrail assembly connected to at least two of the support mechanisms, the support mechanism comprising a support plate, an upper clamping plate and a lower clamping plate installed on the same side of the support plate and arranged opposite to each other up and down, and a pressing plate arranged on the upper clamping plate for pressing on the top surface of the stair tread, the upper clamping plate is an L-shaped clamping plate, the vertical side plates of the L-shaped clamping plate are installed on the support plate, the pressing plate is connected with a push screw, and the top The push screw is threadedly connected to the horizontal plate of the L-shaped clamping plate, and a sleeve is installed at the center of the top surface of the horizontal plate. The lower clamping plate includes a trapezoidal side plate installed on the support plate and a bottom plate vertically connected to the trapezoidal side plate for pressing against the inclined bottom surface of the stairs. The guardrail assembly includes a vertical pole installed in the sleeve, a length-adjustable inclined railing installed on the vertical pole, and a horizontal railing connected to one end of the inclined railing through an L-shaped sleeve. A guard plate is connected between the support plates of two adjacent support mechanisms. The construction site staircase empty side protection device has a cumbersome installation process, a large amount of installation labor, and a long construction time. Utility Model Content

[0004] The utility model aims to provide a prefabricated stair edge protection fixing device to solve the technical problems of troublesome installation process of guardrail rod components, large installation labor and long construction time in the prior art.

[0005] In order to achieve the above objectives, the technical solution adopted by the utility model is:

[0006] A prefabricated stair edge protection fixing device comprises a handrail assembly and a fixing fixture, wherein the handrail assembly is a mesh structure composed of a plurality of vertical poles and a plurality of inclined cross bars, wherein the vertical poles and the inclined cross bars are hingedly fixed to allow the handrail assembly to be contracted or expanded; the fixing fixture comprises a clamping structure for clamping on the prefabricated staircase and a connecting structure for connecting with the handrail assembly, wherein the connecting structure is a connecting sleeve fixed on the clamping structure, and the handrail assembly is plugged into the connecting sleeve.

[0007] Furthermore, the uprights include upright one, upright two and upright three, upright one is hinged at the left end of the inclined cross bar, upright two is hinged at the middle of the inclined cross bar, upright three is hinged at the right end of the inclined cross bar, and upright one, upright two and upright three are parallel to each other.

[0008] Furthermore, the inclined cross bar includes an inclined cross bar 1 and an inclined cross bar 2, wherein the inclined cross bar 1 is hinged at the upper end of the vertical bar, and the inclined cross bar 2 is hinged at the middle of the vertical bar, and the inclined cross bar 1 and the inclined cross bar 2 are parallel.

[0009] Furthermore, the middle and upper ends of the uprights are provided with through holes hinged to the inclined crossbars, and the left end, right end and middle of the inclined crossbar are provided with hinge shafts hinged to the uprights to achieve folding and unfolding of the railing assembly.

[0010] Furthermore, the fixing structure includes a connecting sleeve, a top plate, a side plate and a bottom plate. The top plate, the side plate and the bottom plate are arranged around the edge of the prefabricated stairs. A fastening hole is provided on the upper part of the top plate. The fastening hole is a through hole. The fixing structure is tightly fixed to the side of the prefabricated stairs by fastening bolts and threading the fastening holes.

[0011] Furthermore, the railing assembly is sleeved on the outside of the connecting sleeve, and the fastening hole is located inside the connecting sleeve.

[0012] Furthermore, the bottom plate is arranged to be inclined relative to the top plate to adapt to the inclined side of the prefabricated staircase.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses a prefabricated stair edge protection fixing device, which fixes the template on the step surface by using special clamps and bolts on the step surface, has good fixing effect, fast installation and removal speed of the edge protection, and high efficiency.

[0015] The utility model discloses a prefabricated stair edge protection fixing device, wherein the handrail assembly is hingedly matched by a vertical rod and an inclined horizontal rod, and when folded up, it forms a row of rod-shaped structures, which is convenient for transportation, installation and disassembly. After the handrail assembly is inserted into the connecting sleeve, it is automatically limited to form a mesh structure.

[0016] The prefabricated stair edge protection fixing device of the utility model can be reused, and the material used is steel. If the device is damaged, the steel can also be recycled, which meets the requirements of green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the prefabricated stair edge protection fixing device in Example 1;

[0018] Figure 2 This is a schematic diagram of a handrail assembly of a prefabricated stair edge protection fixture in Example 1;

[0019] Figure 3 A schematic diagram of the folding of the handrail assembly of the prefabricated stair edge protection fixture in Example 1;

[0020] Figure 4 This is a schematic diagram of the end hinge structure of the prefabricated stair edge protection fixing device in Example 1;

[0021] Figure 5 This is a schematic diagram of the fixing fixture structure of the prefabricated stair edge protection fixing device in Example 1;

[0022] Figure 6 This is a schematic diagram of the middle hinged structure of the prefabricated stair edge protection fixing device in Example 1.

[0023] In the figure: 1. connecting sleeve; 2. vertical pole 1; 3. vertical pole 2; 4. vertical pole 3; 5. inclined cross bar 1; 6. inclined cross bar 2; 7. through hole; 8. hinge shaft; 9. top plate; 10. side plate; 11. bottom plate; 12. fastening hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] The implementation of the prefabricated stair edge protection fixing device in the utility model is as follows Figure 1-6 shown.

[0026] Example 1

[0027] The prefabricated stair edge protection fixing device of this embodiment includes a railing assembly and a fixing fixture. The railing assembly is a mesh structure composed of multiple vertical rods and multiple inclined cross bars. The vertical rods and the inclined cross bars are hinged and fixed to allow the railing assembly to be retracted or expanded. The fixing fixture includes a clamping structure for clamping on the prefabricated staircase and a connecting structure for connecting with the railing assembly. The connecting structure is a connecting sleeve 1 fixed on the clamping structure, and the railing assembly is plugged into the connecting sleeve 1.

[0028] The middle and upper ends of the vertical rods are provided with through holes 7 hinged to the inclined cross rods, and the left end, right end and middle of the inclined cross rods are provided with hinge shafts 8 hinged to the vertical rods. The vertical rods include vertical rod 1 2, vertical rod 2 3 and vertical rod 3 4. The vertical rod 1 2 is hinged at the left end of the inclined cross rod and is rotatably connected to the inclined cross rod. The vertical rod 2 3 is hinged at the middle part of the inclined cross rod and is rotatably connected to the inclined cross rod. The vertical rod 3 4 is hinged at the right end of the inclined cross rod and is rotatably connected to the inclined cross rod. The vertical rod 1 2 and the vertical rod 3 are hinged at the left end of the inclined cross rod and are rotatably connected to the inclined cross rod. The second 3 and the third upright 4 are parallel to each other, and the inclined cross bar includes an inclined cross bar 1 5 and an inclined cross bar 2 6. The inclined cross bar 1 5 is hinged at the upper end of the upright and is rotatably connected to the upright. The inclined cross bar 2 6 is hinged in the middle of the upright and is rotatably connected to the upright. The inclined cross bar 1 5 and the inclined cross bar 2 6 are parallel to realize the folding and unfolding of the railing assembly, which greatly reduces the volume of the prefabricated stair edge protection fixing device, makes it occupy less space, and improves the transportation volume and convenience of the guardrail when carrying.

[0029] The fixing structure includes a connecting sleeve 1, a top plate 9, a side plate 10 and a bottom plate 11. The top plate 9, the side plate 10 and the bottom plate 11 are arranged around the edge of the prefabricated stairs. The connecting sleeve 1 is arranged on the top plate 9. The fastening hole 12 is located in the connecting sleeve 1. The fastening hole 12 is a through hole. The fixing structure is tightly fixed to the side of the prefabricated stairs by fastening bolts and threading the fastening holes. The railing assembly is sleeved on the outside of the connecting sleeve 1. The bottom plate 11 is arranged obliquely to the top plate 9 to adapt to the inclined side of the prefabricated stairs.

[0030] The operating method of the utility model prefabricated stair edge protection fixing device is as follows: clamp the stair with a fixing clamp, use fastening bolts to thread the fastening holes, tightly clamp the fixing structure on the side of the prefabricated stair, unfold the railing assembly, and sleeve it on the outside of the connecting sleeve.

[0031] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A prefabricated stair edge protection fixing device, characterized in that: The invention comprises a railing assembly and a fixing fixture, wherein the railing assembly is a mesh structure composed of a plurality of vertical rods and a plurality of inclined cross rods, wherein the vertical rods and the inclined cross rods are hingedly fixed to enable the railing assembly to be retracted or unfolded; the fixing fixture comprises a clamping structure for clamping on the prefabricated stairs and a connecting structure for connecting with the railing assembly, wherein the connecting structure is a connecting sleeve fixed on the clamping structure, and the railing assembly is plugged into the connecting sleeve; the vertical rods comprise a first vertical rod, a second vertical rod and a third vertical rod, wherein the first vertical rod is hinged at the left end of the inclined cross rod, and the second vertical rod is hinged at the left end of the inclined cross rod, and the third vertical rod is hinged at the right end of the inclined cross rod. The middle part of the inclined cross bar, the vertical bar three is hinged at the right end of the inclined cross bar, and the vertical bar one, the vertical bar two, and the vertical bar three are parallel to each other; the inclined cross bar includes an inclined cross bar one and an inclined cross bar two, the inclined cross bar one is hinged at the upper end of the vertical bar, the inclined cross bar two is hinged in the middle of the vertical bar, and the inclined cross bar one is parallel to the inclined cross bar two; the middle and upper ends of the vertical bars are provided with through holes hinged to the inclined cross bar, and the left end, right end and middle of the inclined cross bar are provided with hinge shafts hinged to the vertical bars to realize the folding and unfolding of the railing assembly.

2. The prefabricated stair edge protection fixing device according to claim 1 is characterized in that: The fixing structure includes a connecting sleeve, a top plate, a side plate and a bottom plate. The top plate, the side plate and the bottom plate are arranged around the edge of the prefabricated stairs. A fastening hole is arranged on the upper part of the top plate. The fastening hole is a through hole. The fixing structure is tightly fixed to the side of the prefabricated stairs by fastening bolts and threading the fastening holes.

3. The prefabricated stair edge protection fixing device according to claim 2 is characterized in that: The railing assembly is sleeved on the outside of the connecting sleeve, and the fastening hole is located in the connecting sleeve.

4. The prefabricated stair edge protection fixing device according to claim 2 is characterized in that: The bottom plate is arranged to be inclined relative to the top plate to adapt to the inclined side of the prefabricated staircase.

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