Turnover protection device used in prefabricated elevator shaft

Abstract

The utility model discloses a turnover protection device used in a prefabricated elevator shaft. The turnover protection device comprises a protection platform, a shielding plate, an inclined supporting rod, a supporting vertical rod and a protective fence. The shielding plates are rotationally installed on the four side edges of the protection platform, the inclined supporting rods are inclined to the protection platform, the top ends of the supporting vertical rods are fixedly connected with the protection platform, and the bottom ends of the supporting vertical rods are fixedly connected with the inclined supporting rods; the protective fence is located below the protective platform and vertically installed at the bottom end of the inclined supporting rod. The bottom end of the inclined supporting rod is provided with a right-angle structure used for being clamped on a layer plate, and the top end of the inclined supporting rod is used for abutting against the inner wall of an elevator shaft. The turnover protection device can be kept stable by means of self weight, bolts do not need to be embedded in a stair platform, and hoisting and moving are convenient. After installation, a gap between the protection platform and the inner wall of the elevator shaft can be shielded by unfolding the shielding plate, so that foreign matter in the vertical direction is prevented from falling off, and constructors below are prevented from being hurt. The protective fence can effectively prevent foreign matters from entering the elevator shaft through the elevator opening, and the protective safety in the elevator shaft is enhanced.

Description

Technical Field

[0001] The utility model belongs to the field of building construction, and particularly relates to a reusable protection device for prefabricated elevator shafts. Background Art

[0002] The Chinese utility model patent application with the application number 202320331999.2 discloses a reusable standardized protection platform for prefabricated stairwells. By customizing a protection platform that is convenient for hoisting and layer-by-layer turnover, it can avoid the need for repeated installation and disassembly of the protection platform.

[0003] However, in order to achieve turnover hoisting in a fixed space, the area of this protection platform is much smaller than the cross-sectional area of the elevator shaft, resulting in a too large gap between the protection platform and the main structure. At the same time, on the outside of each elevator shaft opening, in order to prevent objects from rolling into the elevator shaft, a protective guardrail is installed for vertical protection. However, there are gaps between the protective guardrail, the floor slab, and the protection platform, resulting in poor protection effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a reusable protection device for prefabricated elevator shafts, which can, on the basis of taking into account the reusable standardized installation of the protection platform, solve the problem of poor protection effect caused by the gaps between the protective guardrail, the floor slab, and the protection platform.

[0005] The utility model is realized as follows: A reusable protection device for prefabricated elevator shafts includes a protection platform, a shielding plate, a diagonal brace, a support vertical pole, and a protective guardrail; the shielding plate is installed on the four sides of the protection platform in a rotatable connection manner, the diagonal brace is located directly below the protection platform and is inclined with respect to the protection platform, the top end of the support vertical pole is fixedly connected to the protection platform, and its bottom end is fixedly connected to the diagonal brace; the protective guardrail is located below the protection platform and is vertically installed at the bottom end position of the diagonal brace; the bottom end of the diagonal brace is provided with a right-angle structure for clamping on the floor slab, and its top end is used for abutting against the inner wall of the elevator shaft.

[0006] Further, hoisting rings for connecting with hoisting equipment are arranged on the top surface of the protection platform.

[0007] Further, the shielding plate includes side shielding plates and corner shielding plates. The side shielding plates are located on the outer sides of the protection platform and are hinged to the sides of the protection platform through hinges; the corner shielding plates are located at the corner positions of the protection platform and are hinged to the outer sides of the side shielding plates through hinges.

[0008] Furthermore, a vertical limiting rod is fixed below the diagonal brace, and a vertical limiting plate is fixed on the outer side of the vertical limiting rod. The outer side of the vertical limiting plate is flush with the outer side of the guardrail. A horizontal cushion block is provided at the bottom end surface of the diagonal brace. The horizontal cushion block is perpendicular to the vertical limiting plate, and they jointly form the vertical structure.

[0009] Furthermore, a positioning vertical pipe is arranged on the side of the vertical limiting plate, and a positioning hole is provided at the position corresponding to the positioning vertical pipe at the bottom end of the guardrail. When the guardrail is installed, the positioning vertical pipe is inserted into the positioning hole.

[0010] Furthermore, an avoidance notch for the bottom end of the diagonal brace to extend out is formed at the bottom of the guardrail, and the lower extension of the guardrail is flush with the horizontal cushion block.

[0011] Furthermore, a vertical cushion block for abutting against the inner wall of the elevator shaft is fixed at the top end of the diagonal brace, and the vertical cushion block is parallel to the inner wall of the elevator shaft.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] When the reusable protection device provided by the present utility model is installed in the elevator shaft, the right-angle structure is stuck on the entrance floor plate of the elevator shaft opening, and the upper end of the inclined diagonal brace abuts against the inner wall of the elevator shaft, so that it can maintain stability by its own weight, without the need to pre-bury bolts on the stair platform, and it is also convenient for hoisting and moving. At the same time, in order to realize the reusable hoisting of the device in the elevator shaft, the construction platform area of the protection platform must be smaller than the cross-sectional area of the elevator shaft. Therefore, after installation, the gap between the protection platform and the inner wall of the elevator shaft can be blocked by unfolding the shielding plate to avoid the falling of foreign objects in the vertical direction and the risk of falling objects from height to the construction personnel below. The guardrail located below the protection platform can effectively prevent foreign objects from entering the elevator shaft through the elevator opening, enhancing the protection safety in the elevator shaft. Description of the Drawings

[0014] Figure 1 is a schematic diagram of a reusable protection device provided by an embodiment of the present utility model installed in a precast elevator shaft;

[0015] Figure 2 is a schematic structural diagram of a reusable protection device provided by an embodiment of the present utility model;

[0016] Figure 3 is Figure 2 an enlarged view of area A in

[0017] Figure 4 is Figure 2 a schematic structural diagram of the reusable protection device shown from another angle. Detailed Embodiments

[0018] In order to make the purpose, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Referring to Figures 1 to 4 , this embodiment provides a reusable protection device for a prefabricated elevator shaft, including a protection platform 1, a shielding plate 2, a diagonal brace 3, a support vertical rod 4, and a guardrail 5.

[0021] The shielding plate 2 is installed on the four sides of the protection platform 1 in a rotatable connection manner. The diagonal brace 3 is located directly below the protection platform 1 and is inclined with respect to the protection platform 1. The top end of the support vertical rod 4 is fixedly connected to the protection platform 1, and its bottom end is fixedly connected to the diagonal brace 3; the guardrail 5 is located below the protection platform 1 and is vertically installed at the bottom end position of the diagonal brace 3; the bottom end of the diagonal brace 3 is provided with a right-angle structure for clamping on the laminate 100, and its top end is used to abut against the inner wall 200 of the elevator shaft.

[0022] Specifically, a lifting ring 6 is provided on the top surface of the protection platform 1. The lifting ring 6 is used to connect with a tower crane, a crane, etc., to provide movement control for the up and down movement of the device.

[0023] The shielding plate 2 includes a side shielding plate 21 and a corner shielding plate 22. The side shielding plate 21 is located on the outer side of the protection platform 1 and is hinged to the side of the protection platform 1 through a hinge 7; the corner shielding plate 22 is located at the corner position of the protection platform 1 and is hinged to the outer side of the side shielding plate 21 through a hinge 7. Thus, the side shielding plate 21 can be flipped relative to the protection platform 1, and the corner shielding plate 22 can be flipped relative to the side shielding plate 21.

[0024] A vertical stopper 8 is fixed beneath the diagonal brace 3. A vertical stopper plate 9 is fixed to the outer side of the vertical stopper 8, and the outer side of the vertical stopper plate 9 is flush with the outer side of the guardrail 5. A horizontal pad a is installed at the bottom end of the diagonal brace 3. The horizontal pad a and the vertical stopper plate 9 are perpendicular to each other, forming a vertical structure. A clearance notch 51 is provided at the bottom of the guardrail 5 to allow the bottom end of the diagonal brace 3 to extend out. The lower extension of the guardrail 5 is flush with the horizontal pad a. This structural design prevents any gaps between the device and the deck 100.

[0025] A positioning riser b is provided on the side of the vertical stop plate 9. A positioning hole is provided at the bottom of the guardrail 5 corresponding to the position of the positioning riser b. When the guardrail 5 is installed, the positioning riser b is inserted into the positioning hole. When installing the guardrail 5, the positioning riser b can be used to position the guardrail 5 and guide the installation.

[0026] The top of the diagonal brace 3 is fixed with a vertical pad c for abutting the inner wall 200 of the elevator shaft, and the vertical pad c is parallel to the inner wall 200 of the elevator shaft. By providing the vertical pad c, the top of the diagonal brace 3 can be more stably abutted against the inner wall 200 of the elevator shaft, which is conducive to improving the stability of the entire device.

[0027] To sum up, when the rotatable protective device of this embodiment is installed in the elevator shaft, it can be clamped on the entrance layer plate 100 of the elevator shaft through the right-angle structure, and the upper end of the inclined diagonal support rod 3 is against the inner wall 200 of the elevator shaft, so that it can maintain stability by its own weight. There is no need to embed bolts on the stair platform, and it is also convenient for lifting and moving.

[0028] At the same time, to ensure the device can be hoisted and moved around the elevator shaft, the construction platform area of the protective platform must be smaller than the cross-sectional area of the elevator shaft. Therefore, after installation, the gap between the protective platform 1 and the inner wall 200 of the elevator shaft can be blocked by deploying the shield 2 to prevent vertical foreign objects from falling and posing a risk to construction workers below. The guardrail 5 located below the protective platform 1 effectively prevents foreign objects from entering the elevator shaft through the elevator entrance, enhancing the protection and safety of the elevator shaft.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reusable protective device for prefabricated elevator shafts, characterized in that, It includes a protection platform, a baffle, a diagonal brace, a support vertical pole, and a guardrail; the baffle is installed on the four side edges of the protection platform in a rotatable connection manner, the diagonal brace is located directly below the protection platform and is inclined to the protection platform, the top end of the support vertical pole is fixedly connected to the protection platform, and its bottom end is fixedly connected to the diagonal brace; the guardrail is located below the protection platform and is vertically installed at the bottom end position of the diagonal brace; the bottom end of the diagonal brace is provided with a right-angle structure for clamping on the laminate, and its top end is used to abut against the inner wall of the elevator shaft.

2. The reusable protective device according to claim 1, wherein Hoisting rings for connecting with hoisting equipment are provided on the top surface of the protection platform.

3. The reusable protection device according to claim 1, characterized in that, The baffle includes side baffles and corner baffles. The side baffles are located on the outer side edges of the protection platform and are hinged to the side edges of the protection platform through hinges; the corner baffles are located at the corner positions of the protection platform and are hinged to the outer side edges of the side baffles through hinges.

4. The reusable protection device according to claim 1, wherein A vertical limiting rod is fixed below the diagonal brace. A vertical limiting plate is fixed on the outer side surface of the vertical limiting rod, and the outer side surface of the vertical limiting plate is flush with the outer side surface of the guardrail; a horizontal cushion block is provided on the bottom end surface of the diagonal brace, and the horizontal cushion block is perpendicular to the vertical limiting plate, jointly forming a vertical structure.

5. The reusable protection device according to claim 4, wherein A positioning vertical pipe is provided on the side surface of the vertical limiting plate. Positioning holes are provided at the positions corresponding to the positioning vertical pipe at the bottom end of the guardrail. When the guardrail is installed, the positioning vertical pipe is inserted into the positioning holes.

6. The reusable protection device according to claim 4, characterized in that, An avoidance notch for the bottom end of the diagonal brace to extend out is provided at the bottom of the guardrail, and the lower extension of the guardrail is flush with the horizontal cushion block.

7. The reusable protection device according to claim 1, characterized in that A vertical cushion block for abutting against the inner wall of the elevator shaft is fixed at the top end of the diagonal brace, and the vertical cushion block is parallel to the inner wall of the elevator shaft.

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