Elevator shaft door opening protection device

Abstract

The utility model discloses an elevator shaft door opening protection device, which belongs to the technical field of constructional engineering protection, and comprises a door fence body and a fixing piece, the fixing piece comprises a first transverse plate and a second transverse plate, and the first transverse plate and the second transverse plate are connected through two fastening screws; the first end of the fastening screw rod is provided with a diameter expanding section, and the diameter expanding section penetrates through the first door fence mounting hole and then is in threaded connection with a first nut; the second ends of the fastening screws sequentially penetrate through the corresponding first mounting holes and the second mounting holes and then are in threaded connection with second nuts. According to the elevator shaft door opening protection device, the specific fixing pieces are fixed to the wall bodies on the two sides of the door opening, damage and secondary construction caused by punching in the wall bodies are avoided, and operation is easy; the distance between the two fastening screw rods of the fixing piece can be adjusted according to the width of an elevator shaft door opening and the thickness of walls on the two sides of the door opening, the distance between the first transverse plate and the second transverse plate is adjusted, and the universality of the protection device is improved.

Description

Technical Field

[0001] The utility model relates to a protective device for an elevator shaft door opening, belonging to the technical field of building engineering protection. Background Art

[0002] Elevator engineering is usually carried out in the later stage of project construction. Therefore, during the project construction period, it is necessary to carry out safety protection on the position of the elevator door opening to prevent people or objects from falling into the elevator shaft. The most common protective device for the elevator shaft door opening is to set up a fence at the elevator shaft door opening. At present, various forms of fences are adopted, but most of them need to be fixed on the wall at the door opening through connecting wall members. When fixing the connecting wall members, it is necessary to drill holes in the wall. For example, it is necessary to install expansion bolts after drilling holes in the wall, and the damage caused by drilling holes in the wall needs to be repaired through secondary construction. Content of the Utility Model

[0003] The utility model provides a protective device for an elevator shaft door opening to solve the problems existing in the prior art, avoid the damage and secondary construction caused by drilling holes in the wall when installing the protective device, and improve the construction efficiency.

[0004] The utility model realizes the above purpose by adopting the following technical solutions:

[0005] A protective device for an elevator shaft door opening, comprising a door fence body and a fixing member. The fixing member is arranged on the back of the door fence body. The fixing member includes a first horizontal plate and a second horizontal plate arranged in parallel. The first horizontal plate and the second horizontal plate are connected by two fastening screws.

[0006] A diameter-expanded section is arranged at the first end of the fastening screw, and external threads are arranged on the second end and the diameter-expanded section of the fastening screw.

[0007] First mounting holes are respectively opened at both ends of the first horizontal plate, second mounting holes are respectively opened at both ends of the second horizontal plate, and two first door fence mounting holes are arranged at intervals on the door fence body.

[0008] After the diameter-expanded section passes through the first door fence mounting hole, it is threadedly connected with a first nut. The vertical hole width of the first mounting hole is smaller than the outer diameter of the diameter-expanded section.

[0009] The second end of the fastening screw sequentially passes through the corresponding first mounting hole and second mounting hole, and then a second nut is threadedly connected to the second end of the fastening screw.

[0010] Furthermore, the first mounting hole, the second mounting hole, and the first door fence mounting hole are all strip-shaped holes, and the length of the strip-shaped hole extends along the horizontal width direction of the door fence body.

[0011] Further, a limiting rod is also connected between the first cross plate and the second cross plate. The cross section of the limiting rod is square. The first end of the limiting rod is fixed on the first cross plate, a square hole is formed on the second cross plate, the second end of the limiting rod passes through the square hole, and an anti - detachment stop block is arranged at the second end of the limiting rod.

[0012] Further, a warning sign is arranged at the lower part of the door bar body.

[0013] Further, a third nut is threadedly connected to the fastening screw rod between the door bar body and the first cross plate.

[0014] Furthermore, an adjusting door plate is arranged at the lower part of the door bar body. A second door bar mounting hole is formed on the door bar body, and a plurality of adjusting holes are arranged at intervals from top to bottom on the adjusting door plate. The second door bar mounting hole and the adjusting holes are connected by a bolt - nut assembly.

[0015] The beneficial effects of this application include but are not limited to:

[0016] The elevator shaft door opening protection device provided by the present utility model is fixed to the walls on both sides of the door opening through specific fixing parts, without the need for drilling holes, avoiding the damage and secondary construction caused by drilling holes in the wall, being easy to operate, and improving the construction efficiency; the distance between the two fastening screw rods of the fixing parts can be adjusted according to the width of the elevator shaft door opening and the thickness of the walls on both sides of the door opening, and the distance between the first cross plate and the second cross plate can be adjusted, improving the versatility of the protection device; without removing the protection device, the construction of the ground around the elevator shaft door opening can be facilitated by adjusting the installation position of the adjusting door plate, and after the construction is completed, the position of the adjusting door plate can be reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 is a perspective view of the elevator shaft door opening protection device provided by the present utility model observed from the front side;

[0019] Figure 2 is a perspective view of the elevator shaft door opening protection device provided by the present utility model observed from the back side;

[0020] Figure 3 is a schematic structural view of the fixing part;

[0021] Figure 4 is a top view of the elevator shaft door opening protection device provided by the present utility model when installed in the door opening;

[0022] Figure 5 Schematic structural diagram of the fastening screw

[0023] Figure 6 Schematic diagram when rotating and tilting the elevator shaft door opening protection device provided by the present utility model

[0024] Figure 7 Front view of the elevator shaft door opening protection device provided by the present utility model when installed in the door opening

[0025] Figure 8 Schematic structural diagram when a third nut is provided on the fastening screw

[0026] Figure 9 Schematic structural diagram when an adjusting door panel is provided on the door bar body

[0027] Figure 10 For Figure 9 Exploded structural diagram of

[0028] In the figure, 1, door opening; 2, wall; 100, door bar body; 110, first door bar mounting hole; 120, warning sign; 130, second door bar mounting hole; 200, fixing member; 210, first horizontal plate; 211, first mounting hole; 220, second horizontal plate; 221, second mounting hole; 230, fastening screw; 231, diameter-expanded section; 232, first nut; 233, second nut; 300, U-shaped clamping cavity; 400, limiting rod; 410, anti-disengagement stop block; 500, third nut; 600, adjusting door panel; 610, adjusting hole; 620, bolt-nut assembly. Detailed implementation manners

[0029] To clearly illustrate the technical features of this solution, the present utility model will be elaborated in detail below through specific implementation manners and in conjunction with its accompanying drawings.

[0030] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0031] As Figures 1-5 shown in, the elevator shaft door opening protection device provided by the present utility model includes a door bar body 100 and a fixing member 200. The fixing member 200 is disposed on the back surface of the door bar body 100, and the fixing member 200 is used to fix the door bar body 100 on the door opening 1.

[0032] Referring to Figure 3 , the fixing member 200 includes a first horizontal plate 210 and a second horizontal plate 220 arranged in parallel, and the first horizontal plate 210 and the second horizontal plate 220 are connected by two fastening screws 230.

[0033] Specific reference Figure 5 , a diameter-expanded section 231 is provided at the first end of the fastening screw 230, and external threads are provided on the second end of the fastening screw 230 and the diameter-expanded section 231.

[0034] First mounting holes 211 are respectively formed at both ends of the first cross plate 210, second mounting holes 221 are respectively formed at both ends of the second cross plate 220, and two first door fence mounting holes 110 are arranged at intervals on the door fence body 100.

[0035] After the diameter-expanded section 231 passes through the corresponding first door fence mounting hole 110, a first nut 232 is threadedly connected, and the vertical hole width of the first mounting hole 211 is smaller than the outer diameter of the diameter-expanded section 231.

[0036] The second end of the fastening screw 230 sequentially passes through the corresponding first mounting hole 211 and second mounting hole 221, and then a second nut 233 is threadedly connected to the second end of the fastening screw 230.

[0037] As Figure 4 shown, the first cross plate 210, the second cross plate 220 and the fastening screw 230 at each end of the fixing member 200 cooperate with each other to form a U-shaped clamping cavity 300, and the walls on both sides of the elevator shaft door opening are clamped in the U-shaped clamping cavity 300. After tightening the first nut 232 and the second nut 233, the fixing member 200 can be fixed on the walls on both sides of the elevator shaft door opening, avoiding the damage and secondary construction caused by punching holes in the wall, and improving the construction efficiency.

[0038] In order to facilitate handling and save storage space, in the present utility model, the door fence body 100 and the fixing member 200 are separately arranged. The door fence body 100 can be stacked for storage, and the fixing member 200 is centrally stored.

[0039] After the second end of the fastening screw 230 passes through the first mounting hole 211 and the second mounting hole 221, a second nut 233 is connected. The second nut 233 is used to prevent the first cross plate 210 and the second cross plate 220 from disengaging from the second end of the fastening screw 230; and a diameter-expanded section 231 is provided at the first end of the fastening screw 230, which can prevent the first cross plate 210 and the second cross plate 220 from disengaging from the first end of the fastening screw 230. In this way, the first cross plate 210, the second cross plate 220 and the fastening screw 230 are pre-assembled together.

[0040] In actual application, according to the size of the elevator shaft door opening, the width of the door fence body 100, the lengths of the first cross plate 210 and the second cross plate 220, and the length of the fastening screw 230 are determined. The width of the door fence body 100, the lengths of the first cross plate 210 and the second cross plate 220 are greater than the width of the door opening, and the length of the fastening screw 230 is greater than the thickness of the walls on both sides of the door opening.

[0041] After transporting the gate railing body 100 and the fixing member 200 to the construction site, (1) Adjust the position of the second nut 233 according to the thickness of the wall so that the distance between the first cross plate 210 and the second cross plate 220 is slightly greater than the thickness of the wall; Pass the enlarged diameter sections 231 of the two fastening screws 230 through the first gate railing mounting holes 110 on the gate railing body 100 and screw on the first nuts 232, but do not tighten them, thus pre-assembling the fixing member 200 and the gate railing body 100 together; (2) As Figure 6 shown, set the protective device upright obliquely. In the inclined state, the second cross plate 220 of the fixing member 200 can pass through the door opening and move to the inner side of the door opening, while the gate railing body and the first cross plate 210 are located outside the door opening; (3) As Figure 7 shown, set the protective device upright vertically and place it on the ground, then the walls on both sides of the door opening can be clamped in the U-shaped clamping cavities 300 at both ends of the fixing member 200; (4) Tighten the first nuts 232. During the process of tightening the first nuts 232, the gate railing body 100 and the first cross plate 210 move towards the second cross plate 220, clamping the walls on both sides of the door opening in the U-shaped clamping cavities 300, and thus completing the installation of the protective device.

[0042] When disassembling, loosen the first nuts 232, but do not completely unscrew them, then tilt the protective device so that the second cross plate 220 is tilted and removed from the door opening; Then completely unscrew the first nuts 232, and the gate railing can be disassembled from the fixing member 200.

[0043] Furthermore, in order to adapt to different widths of elevator shaft door openings, it is preferably to set the first mounting holes 211, the second mounting holes 221, and the first gate railing mounting holes 110 as strip-shaped holes, and the length of the strip-shaped holes extends along the horizontal width direction of the gate railing body. During actual application, according to the width of the door opening, move the fastening screws 230 in the strip-shaped holes to adjust the distance between the two fastening screws 230 so that the fastening screws 230 are abutted against the left and right side walls of the door opening.

[0044] In a preferred embodiment, a limiting rod 400 is further connected between the first cross plate 210 and the second cross plate 220. The cross section of the limiting rod 400 is square. The first end of the limiting rod 400 is fixed on the first cross plate 210, a square hole is formed on the second cross plate 220, the second end of the limiting rod 400 passes through the square hole, and a large-sized anti-drop block 410 is provided at the second end of the limiting rod 400 to prevent the second cross plate from falling off when the fastening screws are not installed. In this way, through the cooperation of the limiting rod 400 and the square hole, relative rotation between the first cross plate and the second cross plate is prevented, and the two are kept parallel. Moreover, the sizes of the limiting rod 400 and the square hole are close, and the two maintain a certain positional relationship through friction, and the first cross plate and the second cross bar will not come close to each other when the protective device is erected or tilted.

[0045] As Figure 8 shown, a third nut 500 is threadedly connected to the fastening screw 230 between the gate rail body 100 and the first cross plate 210. With such a setting, the fixing member 200 and the gate rail body 100 can be separately installed, reducing the installation difficulty. Specifically, for such a structure, when installing the protective device, the first cross plate 210, the second cross plate 220, the fastening screw 230, and the second nut 233 can be pre-assembled into the fixing member 200 first. Then, the fixing member 200 is tilted and erected. In the tilted state, the second cross plate 220 of the fixing member 200 can pass through the door opening and move to the inner side of the door opening, while the gate rail body and the first cross plate 210 are located outside the door opening. Then, the fixing member 200 is placed vertically, and the wall bodies on both sides of the door opening are clamped in the U-shaped clamping cavities 300 at both ends of the fixing member 200. Then, the first nut 232 is tightened to clamp the wall bodies on both sides of the door opening in the U-shaped clamping cavities 300. Finally, the gate rail body is installed on the fastening screw 230, and the third nut 500 is tightened to complete the installation of the protective device.

[0046] As Figure 9 、 Figure 10 shown, further, an adjusting door panel 600 is provided at the lower part of the gate rail body. A second gate rail mounting hole 130 is formed on the gate rail body 100. A plurality of adjusting holes 610 are arranged at intervals from top to bottom on the adjusting door panel 600. The second gate rail mounting hole 130 and the adjusting holes are connected by a bolt and nut assembly 620. With such a setting, when construction is required on the ground around the elevator shaft door opening, the height of the adjusting door panel can be adjusted so that its bottom is separated from the ground, facilitating the construction of the ground. When dealing with this situation, the traditional protective device can only be completely removed, and reinstalled after the ground construction is completed.

[0047] Further, in a preferred embodiment, a warning sign 120 is provided at the lower part of the gate rail body 100 or on the adjusting door panel, usually a yellow and black alternating color band or a red and white alternating color band.

[0048] Generally, the gate rail body adopts a hollow mesh structure or is formed by assembling horizontal bars or vertical bars at intervals.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 should not be construed as a limitation to the present invention.

[0050] In the present utility model, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium. 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 circumstances.

[0051] The above specific embodiments shall not be construed as limiting the scope of protection of the present utility model. For those skilled in the art of this technology, any alternative improvement or transformation made to the embodiments of the present utility model shall fall within the scope of protection of the utility model.

[0052] Where the present utility model is not described in detail, it is common knowledge to those skilled in the art of this technology.

Claims

1. An elevator shaft door opening protection device, characterized in that, It includes a railing body and a fixing member. The fixing member is arranged on the back of the railing body. The fixing member includes a first horizontal plate and a second horizontal plate arranged in parallel, and the first horizontal plate and the second horizontal plate are connected by two fastening screws; A diameter-expanded section is arranged at the first end of the fastening screw, and external threads are arranged on the second end of the fastening screw and the diameter-expanded section; First mounting holes are respectively formed at both ends of the first horizontal plate, second mounting holes are respectively formed at both ends of the second horizontal plate, and two first railing mounting holes are arranged at intervals on the railing body; After the diameter-expanded section passes through the first railing mounting hole, it is threadedly connected with a first nut, and the vertical hole width of the first mounting hole is smaller than the outer diameter of the diameter-expanded section; The second end of the fastening screw sequentially passes through the corresponding first mounting hole and second mounting hole, and then a second nut is threadedly connected to the second end of the fastening screw.

2. The elevator shaft door opening protection device according to claim 1, characterized in that, The first mounting hole, the second mounting hole, and the first railing mounting hole are all strip-shaped holes, and the length of the strip-shaped hole extends along the horizontal width direction of the railing body.

3. The elevator shaft door opening protection device according to claim 1, characterized in that, A limiting rod is further connected between the first horizontal plate and the second horizontal plate. The cross-section of the limiting rod is square. The first end of the limiting rod is fixed on the first horizontal plate, a square hole is formed on the second horizontal plate, the second end of the limiting rod passes through the square hole, and an anti-detachment stop block is arranged at the second end of the limiting rod.

4. The elevator shaft door opening protection device according to claim 1, characterized in that, A warning sign is arranged at the lower part of the railing body.

5. The elevator shaft door opening protection device according to claim 1, characterized in that, A third nut is threadedly connected to the fastening screw between the railing body and the first horizontal plate.

6. The elevator shaft door opening protection device according to claim 1, characterized in that An adjusting door panel is arranged at the lower part of the railing body. A second railing mounting hole is formed on the railing body. A plurality of adjusting holes are arranged at intervals from top to bottom on the adjusting door panel. The second railing mounting hole and the adjusting holes are connected by a bolt-nut assembly.

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